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device-mapper-multipath-0.8.5-1

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Update Source to upstream version 0.8.5 plus post tag commits
  * Patches 0001-0102 are from
    https://github.com/openSUSE/multipath-tools/tree/queue and are
    already queued for upstream.
Rename files
  * Previous patches 0059-0068 are now patches 0103-0111
This commit is contained in:
Benjamin Marzinski 2021-01-19 18:06:09 -06:00
parent d5b202726f
commit 1dad67a5af
179 changed files with 10110 additions and 7109 deletions
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1
.gitignore vendored
View File

@ -20,3 +20,4 @@ multipath-tools-091027.tar.gz
/multipath-tools-0.8.0.tgz
/multipath-tools-0.8.2.tgz
/multipath-tools-0.8.4.tgz
/multipath-tools-0.8.5.tgz

30
0001-Change-the-multipath.conf-manpage-uxsock_timeout-def.patch Normal file
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@ -0,0 +1,30 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Christophe Varoqui <christophe.varoqui@opensvc.com>
Date: Mon, 14 Dec 2020 11:05:24 +0100
Subject: [PATCH] Change the multipath.conf manpage uxsock_timeout default
value
Fixes: 7db0c44 ("multipathd: Set CLI timeout correctly")
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/multipath.conf.5 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index d2101ed6..7242d39b 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -1153,7 +1153,7 @@ In these cases it is recommended to increase the CLI timeout to avoid
those issues.
.RS
.TP
-The default is: \fB1000\fR
+The default is: \fB4000\fR
.RE
.
.
--
2.17.2

35
0001-libmpathpersist-limit-PRIN-allocation-length-to-8192.patch
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@ -1,35 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 6 Mar 2020 21:50:30 +0100
Subject: [PATCH] libmpathpersist: limit PRIN allocation length to 8192 bytes
Some targets (notably the qemu-pr-helper) don't support PERSISTENT
RESERVE IN commands with more than 8192 bytes allocation length.
While I have found no explicit requirement in the SCSI specs that
the allocation lengh may not exceed 8k, an 8k limit is also enforced
by sg_persist(8), and actually by mpathpersist itself for the
--allocation-length option, but not for the auto-determined length.
Fix that.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/mpath_pr_ioctl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libmpathpersist/mpath_pr_ioctl.c b/libmpathpersist/mpath_pr_ioctl.c
index 74b26b0c..1a28cba7 100644
--- a/libmpathpersist/mpath_pr_ioctl.c
+++ b/libmpathpersist/mpath_pr_ioctl.c
@@ -543,5 +543,7 @@ int get_prin_length(int rq_servact)
mx_resp_len = 0;
break;
}
+ if (mx_resp_len > MPATH_MAX_PARAM_LEN)
+ mx_resp_len = MPATH_MAX_PARAM_LEN;
return mx_resp_len;
}
--
2.17.2

93
0002-libmpathpersist-format_transportids-avoid-PROUT-over.patch
View File

@ -1,93 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 6 Mar 2020 23:33:04 +0100
Subject: [PATCH] libmpathpersist: format_transportids(): avoid PROUT overflow
This limits the PERSISTENT RESERVE OUT data size to max. 8192 bytes.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/mpath_pr_ioctl.c | 31 +++++++++++++++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/libmpathpersist/mpath_pr_ioctl.c b/libmpathpersist/mpath_pr_ioctl.c
index 1a28cba7..c78e8000 100644
--- a/libmpathpersist/mpath_pr_ioctl.c
+++ b/libmpathpersist/mpath_pr_ioctl.c
@@ -1,5 +1,6 @@
#include <stdio.h>
#include <stdlib.h>
+#include <stddef.h>
#include <sys/types.h>
#include <sys/stat.h>
@@ -138,38 +139,64 @@ retry :
return status;
}
+/*
+ * Helper macro to avoid overflow of prout_param_descriptor in
+ * format_transportids(). Data must not be written past
+ * MPATH_MAX_PARAM_LEN bytes from struct prout_param_descriptor.
+ */
+#define check_overflow(ofs, n, start, label) \
+ do { \
+ if ((ofs) + (n) + \
+ offsetof(struct prout_param_descriptor, private_buffer) \
+ > MPATH_MAX_PARAM_LEN) \
+ { \
+ (ofs) = (start); \
+ goto label; \
+ } \
+ } while(0)
+
uint32_t format_transportids(struct prout_param_descriptor *paramp)
{
unsigned int i = 0, len;
uint32_t buff_offset = 4;
- memset(paramp->private_buffer, 0, MPATH_MAX_PARAM_LEN);
+ memset(paramp->private_buffer, 0, sizeof(paramp->private_buffer));
for (i=0; i < paramp->num_transportid; i++ )
{
+ uint32_t start_offset = buff_offset;
+
+ check_overflow(buff_offset, 1, start_offset, end_loop);
paramp->private_buffer[buff_offset] = (uint8_t)((paramp->trnptid_list[i]->format_code & 0xff)|
(paramp->trnptid_list[i]->protocol_id & 0xff));
buff_offset += 1;
switch(paramp->trnptid_list[i]->protocol_id)
{
case MPATH_PROTOCOL_ID_FC:
+ check_overflow(buff_offset, 7 + 8 + 8,
+ start_offset, end_loop);
buff_offset += 7;
memcpy(&paramp->private_buffer[buff_offset], &paramp->trnptid_list[i]->n_port_name, 8);
buff_offset +=8 ;
buff_offset +=8 ;
break;
case MPATH_PROTOCOL_ID_SAS:
+ check_overflow(buff_offset, 3 + 12,
+ start_offset, end_loop);
buff_offset += 3;
memcpy(&paramp->private_buffer[buff_offset], &paramp->trnptid_list[i]->sas_address, 8);
buff_offset += 12;
break;
case MPATH_PROTOCOL_ID_ISCSI:
- buff_offset += 1;
len = (paramp->trnptid_list[i]->iscsi_name[1] & 0xff)+2;
+ check_overflow(buff_offset, 1 + len,
+ start_offset, end_loop);
+ buff_offset += 1;
memcpy(&paramp->private_buffer[buff_offset], &paramp->trnptid_list[i]->iscsi_name,len);
buff_offset += len ;
break;
}
}
+end_loop:
buff_offset -= 4;
paramp->private_buffer[0] = (unsigned char)((buff_offset >> 24) & 0xff);
paramp->private_buffer[1] = (unsigned char)((buff_offset >> 16) & 0xff);
--
2.17.2

27
0002-libmultipath-find_mpe-don-t-match-with-empty-WWID.patch Normal file
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@ -0,0 +1,27 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 16 Sep 2020 21:59:11 +0200
Subject: [PATCH] libmultipath: find_mpe(): don't match with empty WWID
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index b9bdbdbc..df0f8f45 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -147,7 +147,7 @@ struct mpentry *find_mpe(vector mptable, char *wwid)
int i;
struct mpentry * mpe;
- if (!wwid)
+ if (!wwid || !*wwid)
return NULL;
vector_foreach_slot (mptable, mpe, i)
--
2.17.2

54
0003-libmpathpersist-mpath_format_readfullstatus-use-real.patch
View File

@ -1,54 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 6 Mar 2020 23:46:47 +0100
Subject: [PATCH] libmpathpersist: mpath_format_readfullstatus(): use real
buffer size
This changes no semantics, but it will allow changing the size of
prin_readfd.private_buffer in a follow-up patch.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/mpath_pr_ioctl.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/libmpathpersist/mpath_pr_ioctl.c b/libmpathpersist/mpath_pr_ioctl.c
index c78e8000..fadc9e10 100644
--- a/libmpathpersist/mpath_pr_ioctl.c
+++ b/libmpathpersist/mpath_pr_ioctl.c
@@ -238,6 +238,8 @@ static void mpath_format_readfullstatus(struct prin_resp *pr_buff)
uint32_t additional_length, k, tid_len_len = 0;
char tempbuff[MPATH_MAX_PARAM_LEN];
struct prin_fulldescr fdesc;
+ static const int pbuf_size =
+ sizeof(pr_buff->prin_descriptor.prin_readfd.private_buffer);
convert_be32_to_cpu(&pr_buff->prin_descriptor.prin_readfd.prgeneration);
convert_be32_to_cpu(&pr_buff->prin_descriptor.prin_readfd.number_of_descriptor);
@@ -249,16 +251,18 @@ static void mpath_format_readfullstatus(struct prin_resp *pr_buff)
}
additional_length = pr_buff->prin_descriptor.prin_readfd.number_of_descriptor;
- if (additional_length > MPATH_MAX_PARAM_LEN) {
+ if (additional_length > pbuf_size) {
condlog(3, "PRIN length %u exceeds max length %d", additional_length,
- MPATH_MAX_PARAM_LEN);
+ pbuf_size);
return;
}
memset(&fdesc, 0, sizeof(struct prin_fulldescr));
- memcpy( tempbuff, pr_buff->prin_descriptor.prin_readfd.private_buffer,MPATH_MAX_PARAM_LEN );
- memset(&pr_buff->prin_descriptor.prin_readfd.private_buffer, 0, MPATH_MAX_PARAM_LEN);
+ memcpy( tempbuff, pr_buff->prin_descriptor.prin_readfd.private_buffer,
+ pbuf_size);
+ memset(&pr_buff->prin_descriptor.prin_readfd.private_buffer, 0,
+ pbuf_size);
p =(unsigned char *)tempbuff;
ppbuff = (char *)pr_buff->prin_descriptor.prin_readfd.private_buffer;
--
2.17.2

260
0003-libmultipath-copy-mpp-hwe-from-pp-hwe.patch Normal file
View File

@ -0,0 +1,260 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 16 Sep 2020 22:22:36 +0200
Subject: [PATCH] libmultipath: copy mpp->hwe from pp->hwe
Since f0462f0 ("libmultipath: use vector for for pp->hwe and mp->hwe"),
we've been trying to fix issues caused by paths getting freed and mpp->hwe
dangling. This approach couldn't work because we need mpp->hwe to persist,
even if all paths are removed from the map. Before f0462f0, a simple
assignment worked, because the lifetime of the hwe wasn't bound to the
path. But now, we need to copy the vector. It turns out that we need to set
mpp->hwe only in two places, add_map_with_path() and setup_map(), and
that the code is simplified overall.
Even now, it can happen that a map is added with add_map_without_paths(),
and has no paths. In that case, calling do_set_from_hwe() with a NULL
pointer is not a bug, so remove the message.
Fixes: f0462f0 ("libmultipath: use vector for for pp->hwe and mp->hwe")
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/configure.c | 7 +++++
libmultipath/propsel.c | 4 +--
libmultipath/structs.c | 15 +++++++++++
libmultipath/structs.h | 1 +
libmultipath/structs_vec.c | 54 ++++++++++++++++----------------------
multipathd/main.c | 10 -------
6 files changed, 46 insertions(+), 45 deletions(-)
diff --git a/libmultipath/configure.c b/libmultipath/configure.c
index 6fb477fc..d7afc915 100644
--- a/libmultipath/configure.c
+++ b/libmultipath/configure.c
@@ -311,6 +311,13 @@ int setup_map(struct multipath *mpp, char *params, int params_size,
if (mpp->disable_queueing && VECTOR_SIZE(mpp->paths) != 0)
mpp->disable_queueing = 0;
+ /*
+ * If this map was created with add_map_without_path(),
+ * mpp->hwe might not be set yet.
+ */
+ if (!mpp->hwe)
+ extract_hwe_from_path(mpp);
+
/*
* properties selectors
*
diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
index 7e6e0d68..40201344 100644
--- a/libmultipath/propsel.c
+++ b/libmultipath/propsel.c
@@ -65,9 +65,7 @@ do { \
__do_set_from_vec(struct hwentry, var, (src)->hwe, dest)
#define do_set_from_hwe(var, src, dest, msg) \
- if (!src->hwe) { \
- condlog(0, "BUG: do_set_from_hwe called with hwe == NULL"); \
- } else if (__do_set_from_hwe(var, src, dest)) { \
+ if (src->hwe && __do_set_from_hwe(var, src, dest)) { \
origin = msg; \
goto out; \
}
diff --git a/libmultipath/structs.c b/libmultipath/structs.c
index 464596fc..2efad6f0 100644
--- a/libmultipath/structs.c
+++ b/libmultipath/structs.c
@@ -234,6 +234,17 @@ alloc_multipath (void)
return mpp;
}
+void *set_mpp_hwe(struct multipath *mpp, const struct path *pp)
+{
+ if (!mpp || !pp || !pp->hwe)
+ return NULL;
+ if (mpp->hwe)
+ return mpp->hwe;
+ mpp->hwe = vector_convert(NULL, pp->hwe,
+ struct hwentry, identity);
+ return mpp->hwe;
+}
+
void free_multipath_attributes(struct multipath *mpp)
{
if (!mpp)
@@ -290,6 +301,10 @@ free_multipath (struct multipath * mpp, enum free_path_mode free_paths)
free_pathvec(mpp->paths, free_paths);
free_pgvec(mpp->pg, free_paths);
+ if (mpp->hwe) {
+ vector_free(mpp->hwe);
+ mpp->hwe = NULL;
+ }
FREE_PTR(mpp->mpcontext);
FREE(mpp);
}
diff --git a/libmultipath/structs.h b/libmultipath/structs.h
index 7de93d6c..4ce30551 100644
--- a/libmultipath/structs.h
+++ b/libmultipath/structs.h
@@ -422,6 +422,7 @@ struct host_group {
struct path * alloc_path (void);
struct pathgroup * alloc_pathgroup (void);
struct multipath * alloc_multipath (void);
+void *set_mpp_hwe(struct multipath *mpp, const struct path *pp);
void uninitialize_path(struct path *pp);
void free_path (struct path *);
void free_pathvec (vector vec, enum free_path_mode free_paths);
diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
index 8895fa77..f7f45f11 100644
--- a/libmultipath/structs_vec.c
+++ b/libmultipath/structs_vec.c
@@ -294,11 +294,6 @@ err:
void orphan_path(struct path *pp, const char *reason)
{
condlog(3, "%s: orphan path, %s", pp->dev, reason);
- if (pp->mpp && pp->hwe && pp->mpp->hwe == pp->hwe) {
- condlog(0, "BUG: orphaning path %s that holds hwe of %s",
- pp->dev, pp->mpp->alias);
- pp->mpp->hwe = NULL;
- }
pp->mpp = NULL;
uninitialize_path(pp);
}
@@ -308,8 +303,6 @@ void orphan_paths(vector pathvec, struct multipath *mpp, const char *reason)
int i;
struct path * pp;
- /* Avoid BUG message from orphan_path() */
- mpp->hwe = NULL;
vector_foreach_slot (pathvec, pp, i) {
if (pp->mpp == mpp) {
if (pp->initialized == INIT_REMOVED) {
@@ -397,24 +390,26 @@ extract_hwe_from_path(struct multipath * mpp)
if (mpp->hwe || !mpp->paths)
return;
- condlog(3, "%s: searching paths for valid hwe", mpp->alias);
+ condlog(4, "%s: searching paths for valid hwe", mpp->alias);
/* doing this in two passes seems like paranoia to me */
vector_foreach_slot(mpp->paths, pp, i) {
- if (pp->state != PATH_UP)
- continue;
- if (pp->hwe) {
- mpp->hwe = pp->hwe;
- return;
- }
+ if (pp->state == PATH_UP &&
+ pp->initialized != INIT_REMOVED && pp->hwe)
+ goto done;
}
vector_foreach_slot(mpp->paths, pp, i) {
- if (pp->state == PATH_UP)
- continue;
- if (pp->hwe) {
- mpp->hwe = pp->hwe;
- return;
- }
+ if (pp->state != PATH_UP &&
+ pp->initialized != INIT_REMOVED && pp->hwe)
+ goto done;
}
+done:
+ if (i < VECTOR_SIZE(mpp->paths))
+ (void)set_mpp_hwe(mpp, pp);
+
+ if (mpp->hwe)
+ condlog(3, "%s: got hwe from path %s", mpp->alias, pp->dev);
+ else
+ condlog(2, "%s: no hwe found", mpp->alias);
}
int
@@ -514,8 +509,6 @@ void sync_paths(struct multipath *mpp, vector pathvec)
}
if (!found) {
condlog(3, "%s dropped path %s", mpp->alias, pp->dev);
- if (mpp->hwe == pp->hwe)
- mpp->hwe = NULL;
vector_del_slot(mpp->paths, i--);
orphan_path(pp, "path removed externally");
}
@@ -524,8 +517,6 @@ void sync_paths(struct multipath *mpp, vector pathvec)
update_mpp_paths(mpp, pathvec);
vector_foreach_slot (mpp->paths, pp, i)
pp->mpp = mpp;
- if (mpp->hwe == NULL)
- extract_hwe_from_path(mpp);
}
int
@@ -701,9 +692,15 @@ struct multipath *add_map_with_path(struct vectors *vecs, struct path *pp,
conf = get_multipath_config();
mpp->mpe = find_mpe(conf->mptable, pp->wwid);
- mpp->hwe = pp->hwe;
put_multipath_config(conf);
+ /*
+ * We need to call this before select_alias(),
+ * because that accesses hwe properties.
+ */
+ if (pp->hwe && !set_mpp_hwe(mpp, pp))
+ goto out;
+
strcpy(mpp->wwid, pp->wwid);
find_existing_alias(mpp, vecs);
if (select_alias(conf, mpp))
@@ -754,12 +751,6 @@ int verify_paths(struct multipath *mpp)
vector_del_slot(mpp->paths, i);
i--;
- /* Make sure mpp->hwe doesn't point to freed memory.
- * We call extract_hwe_from_path() below to restore
- * mpp->hwe
- */
- if (mpp->hwe == pp->hwe)
- mpp->hwe = NULL;
/*
* Don't delete path from pathvec yet. We'll do this
* after the path has been removed from the map, in
@@ -771,7 +762,6 @@ int verify_paths(struct multipath *mpp)
mpp->alias, pp->dev, pp->dev_t);
}
}
- extract_hwe_from_path(mpp);
return count;
}
diff --git a/multipathd/main.c b/multipathd/main.c
index a4abbb27..eedc6c10 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1153,13 +1153,6 @@ ev_remove_path (struct path *pp, struct vectors * vecs, int need_do_map)
if (i != -1)
vector_del_slot(mpp->paths, i);
- /*
- * Make sure mpp->hwe doesn't point to freed memory
- * We call extract_hwe_from_path() below to restore mpp->hwe
- */
- if (mpp->hwe == pp->hwe)
- mpp->hwe = NULL;
-
/*
* remove the map IF removing the last path
*/
@@ -1191,9 +1184,6 @@ ev_remove_path (struct path *pp, struct vectors * vecs, int need_do_map)
*/
}
- if (mpp->hwe == NULL)
- extract_hwe_from_path(mpp);
-
if (setup_map(mpp, params, PARAMS_SIZE, vecs)) {
condlog(0, "%s: failed to setup map for"
" removal of path %s", mpp->alias, pp->dev);
--
2.17.2

42
0004-libmultipath-assign-variable-to-make-gcc-happy.patch
View File

@ -1,42 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 25 Mar 2020 23:22:46 -0500
Subject: [PATCH] libmultipath: assign variable to make gcc happy
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There is nothing wrong with is_queueing not being set at the start
of __set_no_path_retry(), it will always get set before it is accessed,
but gcc 8.2.1 is failing with
structs_vec.c: In function ‘__set_no_path_retry’:
structs_vec.c:339:7: error: ‘is_queueing’ may be used uninitialized in
this function [-Werror=maybe-uninitialized]
bool is_queueing;
^~~~~~~~~~~
so, assign a value to make it happy.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/structs_vec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
index 3dbbaa0f..077f2e42 100644
--- a/libmultipath/structs_vec.c
+++ b/libmultipath/structs_vec.c
@@ -336,7 +336,7 @@ static void leave_recovery_mode(struct multipath *mpp)
void __set_no_path_retry(struct multipath *mpp, bool check_features)
{
- bool is_queueing;
+ bool is_queueing = false; /* assign a value to make gcc happy */
check_features = check_features && mpp->features != NULL;
if (check_features)
--
2.17.2

31
0004-libmultipath-dm_map_present_by_uuid-fix-dm_task_crea.patch Normal file
View File

@ -0,0 +1,31 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 22 Sep 2020 14:24:41 +0200
Subject: [PATCH] libmultipath: dm_map_present_by_uuid(): fix dm_task_create()
call
libmultipath shouldn't call dm_task_create() directly any more.
Fixes: 90535a3 ("multipath: centralize validation code")
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/devmapper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 7f093617..0bc1d16e 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -836,7 +836,7 @@ dm_map_present_by_uuid(const char *uuid)
if (safe_sprintf(prefixed_uuid, UUID_PREFIX "%s", uuid))
goto out;
- if (!(dmt = dm_task_create(DM_DEVICE_INFO)))
+ if (!(dmt = libmp_dm_task_create(DM_DEVICE_INFO)))
goto out;
dm_task_no_open_count(dmt);
--
2.17.2

43
0005-libdmmp-tests-fix-compilation.patch Normal file
View File

@ -0,0 +1,43 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 22 Sep 2020 12:10:35 +0200
Subject: [PATCH] libdmmp tests: fix compilation
These tests don't compile with -Werror=unused-parameter. Fix it.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libdmmp/test/libdmmp_speed_test.c | 2 +-
libdmmp/test/libdmmp_test.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/libdmmp/test/libdmmp_speed_test.c b/libdmmp/test/libdmmp_speed_test.c
index 372cd390..d91ba50a 100644
--- a/libdmmp/test/libdmmp_speed_test.c
+++ b/libdmmp/test/libdmmp_speed_test.c
@@ -27,7 +27,7 @@
#include <libdmmp/libdmmp.h>
-int main(int argc, char *argv[])
+int main(void)
{
struct dmmp_context *ctx = NULL;
struct dmmp_mpath **dmmp_mps = NULL;
diff --git a/libdmmp/test/libdmmp_test.c b/libdmmp/test/libdmmp_test.c
index d944e1e3..a940b576 100644
--- a/libdmmp/test/libdmmp_test.c
+++ b/libdmmp/test/libdmmp_test.c
@@ -102,7 +102,7 @@ out:
return rc;
}
-int main(int argc, char *argv[])
+int main(void)
{
struct dmmp_context *ctx = NULL;
struct dmmp_mpath **dmmp_mps = NULL;
--
2.17.2

66
0005-libmutipath-don-t-close-fd-on-dm_lib_release.patch
View File

@ -1,66 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 25 Mar 2020 23:22:47 -0500
Subject: [PATCH] libmutipath: don't close fd on dm_lib_release
If dm_hold_control_open() isn't set, when dm_lib_release() is called, it
will close the control fd. The control fd will get re-opened on the next
dm_task_run() call, but if there is a dm_task_run() call already
in progress in another thread, it can fail. Since many of the
device-mapper callouts happen with the vecs lock held, this wasn't too
noticeable, but there is code that calls dm_task_run() without the
vecs lock held, notably the dmevent waiter code.
Since, as Martin pointed out, dm_hold_control_open() hasn't always
existed in libdevmapper, check if it's supported on compilation,
and update the version requirements if so.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/Makefile | 4 ++++
libmultipath/devmapper.c | 7 ++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/libmultipath/Makefile b/libmultipath/Makefile
index e5651e49..ad690a49 100644
--- a/libmultipath/Makefile
+++ b/libmultipath/Makefile
@@ -36,6 +36,10 @@ ifneq ($(call check_func,dm_task_deferred_remove,/usr/include/libdevmapper.h),0)
CFLAGS += -DLIBDM_API_DEFERRED
endif
+ifneq ($(call check_func,dm_hold_control_dev,/usr/include/libdevmapper.h),0)
+ CFLAGS += -DLIBDM_API_HOLD_CONTROL
+endif
+
OBJS = memory.o parser.o vector.o devmapper.o callout.o \
hwtable.o blacklist.o util.o dmparser.o config.o \
structs.o discovery.o propsel.o dict.o \
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index bed8ddc6..13a1cf53 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -108,7 +108,9 @@ dm_lib_prereq (void)
{
char version[64];
int v[3];
-#if defined(LIBDM_API_DEFERRED)
+#if defined(LIBDM_API_HOLD_CONTROL)
+ int minv[3] = {1, 2, 111};
+#elif defined(LIBDM_API_DEFERRED)
int minv[3] = {1, 2, 89};
#elif defined(DM_SUBSYSTEM_UDEV_FLAG0)
int minv[3] = {1, 2, 82};
@@ -254,6 +256,9 @@ void libmp_dm_init(void)
memcpy(conf->version, version, sizeof(version));
put_multipath_config(conf);
dm_init(verbosity);
+#ifdef LIBDM_API_HOLD_CONTROL
+ dm_hold_control_dev(1);
+#endif
dm_udev_set_sync_support(libmp_dm_udev_sync);
}
--
2.17.2

64
0006-libmultipath-allow-force-reload-with-no-active-paths.patch
View File

@ -1,64 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 25 Mar 2020 23:22:48 -0500
Subject: [PATCH] libmultipath: allow force reload with no active paths
If the partition information has changed on multipath devices (say,
because it was updated on another node that has access to the same
storage), users expect that running "multipathd reconfigure" will update
that. However, if the checkers for the multipath device are pending for
too long when the the device is reconfigured, multipathd will give up
waiting for them, and refuse to reload the device, since there are no
active paths. This means that no kpartx update will be triggered.
Multipath is fully capable of reloading a multipath device that has no
active paths. This has been possible for years. If multipath is supposed
to reload the device, it should do so, even if there are no active paths.
Generally, when multipath is force reloaded, kpartx will be updated.
However when a device is reloaded with no paths, the udev rules won't
run kpartx. But they also weren't running kpartx when the first valid
path appeared, even though the dm activation rules get run in this case.
This changes 11-dm-mpath.rules to run kpartx when a device goes from no
usable paths to having usable paths.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/configure.c | 6 ------
multipath/11-dm-mpath.rules | 2 +-
2 files changed, 1 insertion(+), 7 deletions(-)
diff --git a/libmultipath/configure.c b/libmultipath/configure.c
index c95848a0..96c79610 100644
--- a/libmultipath/configure.c
+++ b/libmultipath/configure.c
@@ -710,12 +710,6 @@ select_action (struct multipath * mpp, vector curmp, int force_reload)
return;
}
- if (pathcount(mpp, PATH_UP) == 0) {
- mpp->action = ACT_IMPOSSIBLE;
- condlog(3, "%s: set ACT_IMPOSSIBLE (no usable path)",
- mpp->alias);
- return;
- }
if (force_reload) {
mpp->force_udev_reload = 1;
mpp->action = ACT_RELOAD;
diff --git a/multipath/11-dm-mpath.rules b/multipath/11-dm-mpath.rules
index 07320a14..cd522e8c 100644
--- a/multipath/11-dm-mpath.rules
+++ b/multipath/11-dm-mpath.rules
@@ -75,7 +75,7 @@ ENV{MPATH_DEVICE_READY}=="0", ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}="1"
ENV{MPATH_DEVICE_READY}!="0", ENV{.MPATH_DEVICE_READY_OLD}=="0",\
ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}="$env{DM_DISABLE_OTHER_RULES_FLAG_OLD}",\
ENV{DM_DISABLE_OTHER_RULES_FLAG_OLD}="",\
- ENV{DM_ACTIVATION}="1"
+ ENV{DM_ACTIVATION}="1", ENV{MPATH_UNCHANGED}="0"
# The code to check multipath state ends here. We need to set
# properties and symlinks regardless whether the map is usable or
--
2.17.2

53
0006-libmultipath-prio-constify-some-function-parameters.patch Normal file
View File

@ -0,0 +1,53 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 18 Sep 2020 23:57:22 +0200
Subject: [PATCH] libmultipath: prio: constify some function parameters
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/prio.c | 4 ++--
libmultipath/prio.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/libmultipath/prio.c b/libmultipath/prio.c
index 194563c4..3a718ba5 100644
--- a/libmultipath/prio.c
+++ b/libmultipath/prio.c
@@ -18,7 +18,7 @@ unsigned int get_prio_timeout(unsigned int timeout_ms,
return default_timeout;
}
-int init_prio (char *multipath_dir)
+int init_prio (const char *multipath_dir)
{
if (!add_prio(multipath_dir, DEFAULT_PRIO))
return 1;
@@ -87,7 +87,7 @@ int prio_set_args (struct prio * p, const char * args)
return snprintf(p->args, PRIO_ARGS_LEN, "%s", args);
}
-struct prio * add_prio (char *multipath_dir, char * name)
+struct prio * add_prio (const char *multipath_dir, const char * name)
{
char libname[LIB_PRIO_NAMELEN];
struct stat stbuf;
diff --git a/libmultipath/prio.h b/libmultipath/prio.h
index 599d1d88..26754f78 100644
--- a/libmultipath/prio.h
+++ b/libmultipath/prio.h
@@ -55,9 +55,9 @@ struct prio {
unsigned int get_prio_timeout(unsigned int checker_timeout,
unsigned int default_timeout);
-int init_prio (char *);
+int init_prio (const char *);
void cleanup_prio (void);
-struct prio * add_prio (char *, char *);
+struct prio * add_prio (const char *, const char *);
int prio_getprio (struct prio *, struct path *, unsigned int);
void prio_get (char *, struct prio *, char *, char *);
void prio_put (struct prio *);
--
2.17.2

30
0007-kpartx.rules-honor-DM_UDEV_DISABLE_OTHER_RULES_FLAG.patch
View File

@ -1,30 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 3 Apr 2020 13:03:01 +0200
Subject: [PATCH] kpartx.rules: honor DM_UDEV_DISABLE_OTHER_RULES_FLAG
10-dm.rules sets DM_UDEV_DISABLE_OTHER_RULES_FLAG for spurious
events that should be ignored by other layers. This means devices
with DISK_RO set, and devices that have never been set up properly
by device-mapper before. This flag should be respected by kpartx.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
kpartx/kpartx.rules | 1 +
1 file changed, 1 insertion(+)
diff --git a/kpartx/kpartx.rules b/kpartx/kpartx.rules
index 8f990494..f1bf31ca 100644
--- a/kpartx/kpartx.rules
+++ b/kpartx/kpartx.rules
@@ -7,6 +7,7 @@
KERNEL!="dm-*", GOTO="kpartx_end"
ACTION!="add|change", GOTO="kpartx_end"
ENV{DM_UUID}!="?*", GOTO="kpartx_end"
+ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", GOTO="kpartx_end"
# Create dm tables for partitions on multipath devices.
ENV{DM_UUID}!="mpath-?*", GOTO="mpath_kpartx_end"
--
2.17.2

90
0007-libmultipath-checkers-prio-allow-non-lazy-.so-loadin.patch Normal file
View File

@ -0,0 +1,90 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 18 Sep 2020 23:58:15 +0200
Subject: [PATCH] libmultipath: checkers/prio: allow non-lazy .so loading
If compiled with -DLOAD_ALL_SHARED_LIBS, all known prioritizers
and checkers will be loaded immediately on startup. This is useful
for determining symbol usage (start executables with LD_BIND_NOW=1).
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/checkers.c | 17 +++++++++++++++++
libmultipath/prio.c | 22 ++++++++++++++++++++++
2 files changed, 39 insertions(+)
diff --git a/libmultipath/checkers.c b/libmultipath/checkers.c
index f7ddd536..18b1f5eb 100644
--- a/libmultipath/checkers.c
+++ b/libmultipath/checkers.c
@@ -7,6 +7,7 @@
#include "debug.h"
#include "checkers.h"
#include "vector.h"
+#include "util.h"
struct checker_class {
struct list_head node;
@@ -375,7 +376,23 @@ void checker_get(const char *multipath_dir, struct checker *dst,
int init_checkers(const char *multipath_dir)
{
+#ifdef LOAD_ALL_SHARED_LIBS
+ static const char *const all_checkers[] = {
+ DIRECTIO,
+ TUR,
+ HP_SW,
+ RDAC,
+ EMC_CLARIION,
+ READSECTOR0,
+ CCISS_TUR,
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(all_checkers); i++)
+ add_checker_class(multipath_dir, all_checkers[i]);
+#else
if (!add_checker_class(multipath_dir, DEFAULT_CHECKER))
return 1;
+#endif
return 0;
}
diff --git a/libmultipath/prio.c b/libmultipath/prio.c
index 3a718ba5..c92bde7f 100644
--- a/libmultipath/prio.c
+++ b/libmultipath/prio.c
@@ -20,8 +20,30 @@ unsigned int get_prio_timeout(unsigned int timeout_ms,
int init_prio (const char *multipath_dir)
{
+#ifdef LOAD_ALL_SHARED_LIBS
+ static const char *const all_prios[] = {
+ PRIO_ALUA,
+ PRIO_CONST,
+ PRIO_DATACORE,
+ PRIO_EMC,
+ PRIO_HDS,
+ PRIO_HP_SW,
+ PRIO_ONTAP,
+ PRIO_RANDOM,
+ PRIO_RDAC,
+ PRIO_WEIGHTED_PATH,
+ PRIO_SYSFS,
+ PRIO_PATH_LATENCY,
+ PRIO_ANA,
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(all_prios); i++)
+ add_prio(multipath_dir, all_prios[i]);
+#else
if (!add_prio(multipath_dir, DEFAULT_PRIO))
return 1;
+#endif
return 0;
}
--
2.17.2

43
0008-kpartx.rules-check-for-skip_kpartx-on-synthetic-ueve.patch
View File

@ -1,43 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 2 Apr 2020 18:12:48 +0200
Subject: [PATCH] kpartx.rules: check for skip_kpartx on synthetic uevents
The current test to detect "spurious" uevents, and thus whether to
import DM_SUBSYSTEM_UDEV_FLAG1 (the flag for the "skip_kpartx" option)
from the udev db is wrong. In 10-dm.rules, DM_UDEV_PRIMARY_SOURCE_FLAG
is imported from the db if it isn't set, meaning that it's always 1
for active maps. The only events for which DM_SUBSYSTEM_UDEV_FLAG1
must not be loaded from the db are the real "primary" events, which
are "change" events with DM_ACTIVATION=="1".
11-dm-mpath.rules resets DM_ACTIVATION to 0 if nothing should change in upper
layers. In this case importing DM_SUBSYSTEM_UDEV_FLAG1 is correct, too. kpartx
will not be called anyway, because 11-dm-mpath.rules also sets MPATH_UNCHANGED=1.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
kpartx/kpartx.rules | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kpartx/kpartx.rules b/kpartx/kpartx.rules
index f1bf31ca..d7527d7d 100644
--- a/kpartx/kpartx.rules
+++ b/kpartx/kpartx.rules
@@ -13,8 +13,11 @@ ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", GOTO="kpartx_end"
ENV{DM_UUID}!="mpath-?*", GOTO="mpath_kpartx_end"
# DM_SUBSYSTEM_UDEV_FLAG1 is the "skip_kpartx" flag.
-# For events not generated by libdevmapper, we need to fetch it from db.
-ENV{DM_UDEV_PRIMARY_SOURCE_FLAG}!="1", IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG1"
+# For events not generated by libdevmapper, we need to fetch it from db:
+# - "change" events with DM_ACTIVATION!="1" (e.g. partition table changes)
+# - "add" events for which rules are not disabled ("coldplug" case)
+ENV{DM_ACTIVATION}!="1", IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG1"
+ACTION=="add", IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG1"
ENV{DM_SUBSYSTEM_UDEV_FLAG1}=="1", GOTO="mpath_kpartx_end"
# 11-dm-mpath.rules sets MPATH_UNCHANGED for events that can be ignored.
--
2.17.2

96
0008-multipath-tools-Makefiles-separate-rules-for-.so-and.patch Normal file
View File

@ -0,0 +1,96 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 22 Sep 2020 12:52:49 +0200
Subject: [PATCH] multipath-tools Makefiles: separate rules for .so and man
pages
Rely more on "make" functionality than on sequential command execution.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathcmd/Makefile | 8 +++++---
libmpathpersist/Makefile | 10 +++++++---
libmultipath/Makefile | 8 +++++---
3 files changed, 17 insertions(+), 9 deletions(-)
diff --git a/libmpathcmd/Makefile b/libmpathcmd/Makefile
index 0f6b8166..08ccb811 100644
--- a/libmpathcmd/Makefile
+++ b/libmpathcmd/Makefile
@@ -8,13 +8,15 @@ CFLAGS += $(LIB_CFLAGS)
OBJS = mpath_cmd.o
-all: $(LIBS)
+all: $(DEVLIB)
$(LIBS): $(OBJS)
$(CC) $(LDFLAGS) $(SHARED_FLAGS) -Wl,-soname=$@ -o $@ $(OBJS) $(LIBDEPS)
- $(LN) $@ $(DEVLIB)
-install: $(LIBS)
+$(DEVLIB): $(LIBS)
+ $(LN) $(LIBS) $@
+
+install: all
$(INSTALL_PROGRAM) -d $(DESTDIR)$(syslibdir)
$(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(syslibdir)/$(LIBS)
$(LN) $(LIBS) $(DESTDIR)$(syslibdir)/$(DEVLIB)
diff --git a/libmpathpersist/Makefile b/libmpathpersist/Makefile
index 21fdad80..9e869fdc 100644
--- a/libmpathpersist/Makefile
+++ b/libmpathpersist/Makefile
@@ -11,15 +11,19 @@ LIBDEPS += -lpthread -ldevmapper -ldl -L$(multipathdir) -lmultipath \
OBJS = mpath_persist.o mpath_updatepr.o mpath_pr_ioctl.o
-all: $(LIBS)
+all: $(DEVLIB) man
$(LIBS): $(OBJS)
$(CC) $(LDFLAGS) $(SHARED_FLAGS) $(LIBDEPS) -Wl,-soname=$@ -o $@ $(OBJS)
- $(LN) $(LIBS) $(DEVLIB)
+
+$(DEVLIB): $(LIBS)
+ $(LN) $(LIBS) $@
+
+man:
$(GZIP) mpath_persistent_reserve_in.3 > mpath_persistent_reserve_in.3.gz
$(GZIP) mpath_persistent_reserve_out.3 > mpath_persistent_reserve_out.3.gz
-install: $(LIBS)
+install: all
$(INSTALL_PROGRAM) -d $(DESTDIR)$(syslibdir)
$(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(syslibdir)/$(LIBS)
$(INSTALL_PROGRAM) -m 755 -d $(DESTDIR)$(syslibdir)
diff --git a/libmultipath/Makefile b/libmultipath/Makefile
index 62ba16e8..40028556 100644
--- a/libmultipath/Makefile
+++ b/libmultipath/Makefile
@@ -54,7 +54,7 @@ OBJS = memory.o parser.o vector.o devmapper.o callout.o \
io_err_stat.o dm-generic.o generic.o foreign.o nvme-lib.o \
libsg.o valid.o
-all: $(LIBS)
+all: $(DEVLIB)
nvme-lib.o: nvme-lib.c nvme-ioctl.c nvme-ioctl.h
$(CC) $(CFLAGS) -Wno-unused-function -c -o $@ $<
@@ -74,9 +74,11 @@ nvme-ioctl.h: nvme/nvme-ioctl.h
$(LIBS): $(OBJS)
$(CC) $(LDFLAGS) $(SHARED_FLAGS) -Wl,-soname=$@ -o $@ $(OBJS) $(LIBDEPS)
- $(LN) $@ $(DEVLIB)
-install:
+$(DEVLIB): $(LIBS)
+ $(LN) $(LIBS) $@
+
+install: all
$(INSTALL_PROGRAM) -d $(DESTDIR)$(syslibdir)
$(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(syslibdir)/$(LIBS)
$(INSTALL_PROGRAM) -m 755 -d $(DESTDIR)$(libdir)
--
2.17.2

31
0009-libmpathpersist-depend-on-libmultipath.patch
View File

@ -1,31 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Wed, 6 May 2020 09:35:47 +0200
Subject: [PATCH] libmpathpersist: depend on libmultipath
Without this the build fails with:
/usr/bin/ld: cannot find -lmultipath
Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index 1dee3680..ba1d73ba 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,7 @@ all: $(BUILDDIRS)
$(BUILDDIRS):
$(MAKE) -C $@
-multipath multipathd mpathpersist: libmultipath
+libmpathpersist multipath multipathd mpathpersist: libmultipath
mpathpersist: libmpathpersist
$(BUILDDIRS.clean):
--
2.17.2

87
0009-libmultipath-create-separate-.so-for-unit-tests.patch Normal file
View File

@ -0,0 +1,87 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Sat, 19 Sep 2020 00:29:45 +0200
Subject: [PATCH] libmultipath: create separate .so for unit tests
The unit tests use a lot of internal symbols that we don't want
to add to the ABI if we don't have to. As long as we don't
have to make incompatible changes to functions, we can work around
that by simply using a non-versioned library for the unit tests.
Therefore we add a seperate rule here. Do this before actually
adding a version script, to avoid breakage during bisection.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/Makefile | 7 +++++++
tests/Makefile | 10 ++++++----
2 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/libmultipath/Makefile b/libmultipath/Makefile
index 40028556..12bf6300 100644
--- a/libmultipath/Makefile
+++ b/libmultipath/Makefile
@@ -78,6 +78,13 @@ $(LIBS): $(OBJS)
$(DEVLIB): $(LIBS)
$(LN) $(LIBS) $@
+../tests/$(LIBS): $(OBJS) $(VERSION_SCRIPT)
+ $(CC) $(LDFLAGS) $(SHARED_FLAGS) -Wl,-soname=`basename $@` \
+ -o $@ $(OBJS) $(LIBDEPS)
+ $(LN) $@ ${@:.so.0=.so}
+
+test-lib: ../tests/$(LIBS)
+
install: all
$(INSTALL_PROGRAM) -d $(DESTDIR)$(syslibdir)
$(INSTALL_PROGRAM) -m 755 $(LIBS) $(DESTDIR)$(syslibdir)/$(LIBS)
diff --git a/tests/Makefile b/tests/Makefile
index d26b3ce7..9658c9fd 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -10,7 +10,7 @@ W_MISSING_INITIALIZERS := $(call TEST_MISSING_INITIALIZERS)
CFLAGS += $(BIN_CFLAGS) -I$(multipathdir) -I$(mpathcmddir) \
-Wno-unused-parameter $(W_MISSING_INITIALIZERS)
-LIBDEPS += -L$(multipathdir) -L$(mpathcmddir) -lmultipath -lmpathcmd -lcmocka
+LIBDEPS += -L. -L$(mpathcmddir) -lmultipath -lmpathcmd -lcmocka
TESTS := uevent parser util dmevents hwtable blacklist unaligned vpd pgpolicy \
alias directio valid devt
@@ -68,7 +68,7 @@ lib/libchecktur.so:
%.out: %-test lib/libchecktur.so
@echo == running $< ==
- @LD_LIBRARY_PATH=$(multipathdir):$(mpathcmddir) ./$< >$@
+ @LD_LIBRARY_PATH=.:$(mpathcmddir) ./$< >$@
%.vgr: %-test lib/libchecktur.so
@echo == running valgrind for $< ==
@@ -78,7 +78,7 @@ lib/libchecktur.so:
OBJS = $(TESTS:%=%.o) $(HELPERS)
test_clean:
- $(RM) $(TESTS:%=%.out) $(TESTS:%=%.vgr)
+ $(RM) $(TESTS:%=%.out) $(TESTS:%=%.vgr) *.so*
valgrind_clean:
$(RM) $(TESTS:%=%.vgr)
@@ -98,12 +98,14 @@ dep_clean:
@sed -n 's/^.*__wrap_\([a-zA-Z0-9_]*\).*$$/-Wl,--wrap=\1/p' $< | \
sort -u | tr '\n' ' ' >$@
+libmultipath.so.0:
+ $(MAKE) -C $(multipathdir) test-lib
# COLON will get expanded during second expansion below
COLON:=:
.SECONDEXPANSION:
%-test: %.o %.o.wrap $$($$@_OBJDEPS) $$($$@_TESTDEPS) $$($$@_TESTDEPS$$(COLON).o=.o.wrap) \
- $(multipathdir)/libmultipath.so Makefile
+ libmultipath.so.0 Makefile
$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $< $($@_TESTDEPS) $($@_OBJDEPS) \
$(LIBDEPS) $($@_LIBDEPS) \
$(shell cat $<.wrap) $(foreach dep,$($@_TESTDEPS),$(shell cat $(dep).wrap))
--
2.17.2

303
0010-libmultipath-add-linker-version-script.patch Normal file
View File

@ -0,0 +1,303 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Sat, 19 Sep 2020 00:00:18 +0200
Subject: [PATCH] libmultipath: add linker version script
This version script documents the current ABI of libmultipath,
as used by multipath, multipathd, (lib)mpathpersist, and the
dynamically loaded libraries (prioritizers, checkers, and foreign).
The initial version string is set to "LIBMULTIPATH_1.0.0".
This reduces the amount of exported symbols of libmultipath.so.0
by more than a half (199 vs. 434).
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/Makefile | 7 +-
libmultipath/libmultipath.version | 248 ++++++++++++++++++++++++++++++
2 files changed, 253 insertions(+), 2 deletions(-)
create mode 100644 libmultipath/libmultipath.version
diff --git a/libmultipath/Makefile b/libmultipath/Makefile
index 12bf6300..e7254f39 100644
--- a/libmultipath/Makefile
+++ b/libmultipath/Makefile
@@ -6,6 +6,7 @@ include ../Makefile.inc
SONAME = 0
DEVLIB = libmultipath.so
LIBS = $(DEVLIB).$(SONAME)
+VERSION_SCRIPT := libmultipath.version
CFLAGS += $(LIB_CFLAGS) -I$(mpathcmddir) -I$(mpathpersistdir) -I$(nvmedir)
@@ -72,8 +73,10 @@ nvme-ioctl.c: nvme/nvme-ioctl.c
nvme-ioctl.h: nvme/nvme-ioctl.h
$(call make_static,$<,$@)
-$(LIBS): $(OBJS)
- $(CC) $(LDFLAGS) $(SHARED_FLAGS) -Wl,-soname=$@ -o $@ $(OBJS) $(LIBDEPS)
+
+$(LIBS): $(OBJS) $(VERSION_SCRIPT)
+ $(CC) $(LDFLAGS) $(SHARED_FLAGS) -Wl,-soname=$@ \
+ -Wl,--version-script=$(VERSION_SCRIPT) -o $@ $(OBJS) $(LIBDEPS)
$(DEVLIB): $(LIBS)
$(LN) $(LIBS) $@
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
new file mode 100644
index 00000000..a6bf8218
--- /dev/null
+++ b/libmultipath/libmultipath.version
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2020 SUSE LLC
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * libmultipath ABI
+ *
+ * libmultipath doesn't have a stable ABI in the usual sense. In particular,
+ * the library does not attempt to ship different versions of the same symbol
+ * for backward compatibility.
+ *
+ * The ABI versioning only serves to avoid linking with a non-matching ABI, to
+ * cut down the set of exported symbols, and to describe it.
+ * The version string is LIBMULTIPATH_$MAJOR.$MINOR.$REL.
+ *
+ * Policy:
+ *
+ * * Bump $MAJOR for incompatible changes, like:
+ * - symbols removed
+ * - parameter list or return values changed for existing functions
+ * - externally visible data structures changed in incompatible ways
+ * (like offsets of previously existing struct members)
+ * In this case, the new version doesn't inherit the previous versions,
+ * because the new library doesn't provide the full previous ABI any more.
+ * All predecessors are merged into the new version.
+ *
+ * * Bump $MINOR for compatible changes, like adding symbols.
+ * The new version inherits the previous ones.
+ *
+ * * Bump $REL to describe deviations from upstream, e.g. in
+ * multipath-tools packages shipped by distributions.
+ * The new version inherits the previous ones.
+ */
+
+LIBMULTIPATH_1.0.0 {
+global:
+ /* symbols referenced by multipath and multipathd */
+ add_foreign;
+ add_map_with_path;
+ adopt_paths;
+ alloc_multipath;
+ alloc_path;
+ alloc_path_with_pathinfo;
+ alloc_strvec;
+ change_foreign;
+ check_alias_settings;
+ checker_clear_message;
+ checker_disable;
+ checker_enable;
+ checker_is_sync;
+ checker_message;
+ checker_name;
+ checker_state_name;
+ check_foreign;
+ cleanup_checkers;
+ cleanup_foreign;
+ cleanup_lock;
+ cleanup_prio;
+ close_fd;
+ coalesce_paths;
+ convert_dev;
+ count_active_paths;
+ delete_all_foreign;
+ delete_foreign;
+ disassemble_map;
+ disassemble_status;
+ dlog;
+ dm_cancel_deferred_remove;
+ dm_drv_version;
+ dm_enablegroup;
+ dm_fail_path;
+ _dm_flush_map;
+ dm_flush_map_nopaths;
+ dm_flush_maps;
+ dm_geteventnr;
+ dm_get_info;
+ dm_get_major_minor;
+ dm_get_map;
+ dm_get_maps;
+ dm_get_multipath;
+ dm_get_status;
+ dm_get_uuid;
+ dm_is_mpath;
+ dm_mapname;
+ dm_map_present;
+ dm_queue_if_no_path;
+ dm_reassign;
+ dm_reinstate_path;
+ dm_simplecmd_noflush;
+ dm_switchgroup;
+ dm_tgt_version;
+ domap;
+ ensure_directories_exist;
+ extract_hwe_from_path;
+ filter_devnode;
+ filter_path;
+ filter_wwid;
+ find_mp_by_alias;
+ find_mp_by_minor;
+ find_mp_by_str;
+ find_mp_by_wwid;
+ find_mpe;
+ find_path_by_dev;
+ find_path_by_devt;
+ find_slot;
+ foreign_multipath_layout;
+ foreign_path_layout;
+ free_config;
+ free_multipath;
+ free_multipathvec;
+ free_path;
+ free_pathvec;
+ free_strvec;
+ get_monotonic_time;
+ get_multipath_layout;
+ get_path_layout;
+ get_pgpolicy_id;
+ get_refwwid;
+ get_state;
+ get_udev_device;
+ get_uid;
+ get_used_hwes;
+ group_by_prio;
+ init_checkers;
+ init_foreign;
+ init_prio;
+ io_err_stat_attr;
+ io_err_stat_handle_pathfail;
+ is_path_valid;
+ is_quote;
+ libmp_dm_task_create;
+ libmp_udev_set_sync_support;
+ load_config;
+ log_thread_reset;
+ log_thread_start;
+ log_thread_stop;
+ need_io_err_check;
+ normalize_timespec;
+ orphan_path;
+ orphan_paths;
+ parse_prkey_flags;
+ pathcount;
+ path_discovery;
+ path_get_tpgs;
+ pathinfo;
+ path_offline;
+ print_all_paths;
+ print_foreign_topology;
+ _print_multipath_topology;
+ pthread_cond_init_mono;
+ recv_packet;
+ recv_packet_from_client;
+ reinstate_paths;
+ remember_wwid;
+ remove_map;
+ remove_map_by_alias;
+ remove_maps;
+ remove_wwid;
+ replace_wwids;
+ reset_checker_classes;
+ select_all_tg_pt;
+ select_action;
+ select_find_multipaths_timeout;
+ select_no_path_retry;
+ select_path_group;
+ select_reservation_key;
+ send_packet;
+ set_max_fds;
+ __set_no_path_retry;
+ set_path_removed;
+ set_prkey;
+ setup_map;
+ setup_thread_attr;
+ should_multipath;
+ snprint_blacklist_report;
+ snprint_config;
+ snprint_devices;
+ snprint_foreign_multipaths;
+ snprint_foreign_paths;
+ snprint_foreign_topology;
+ _snprint_multipath;
+ snprint_multipath_header;
+ snprint_multipath_map_json;
+ _snprint_multipath_topology;
+ snprint_multipath_topology_json;
+ _snprint_path;
+ snprint_path_header;
+ snprint_status;
+ snprint_wildcards;
+ stop_io_err_stat_thread;
+ store_path;
+ store_pathinfo;
+ strchop;
+ strlcpy;
+ sync_map_state;
+ sysfs_attr_set_value;
+ sysfs_get_size;
+ sysfs_is_multipathed;
+ timespecsub;
+ trigger_paths_udev_change;
+ uevent_dispatch;
+ uevent_get_dm_str;
+ uevent_get_env_positive_int;
+ uevent_is_mpath;
+ uevent_listen;
+ update_mpp_paths;
+ update_multipath_status;
+ update_multipath_strings;
+ update_multipath_table;
+ update_pathvec_from_dm;
+ update_queue_mode_add_path;
+ update_queue_mode_del_path;
+ ux_socket_listen;
+ valid_alias;
+ vector_alloc;
+ vector_alloc_slot;
+ vector_del_slot;
+ vector_free;
+ vector_reset;
+ vector_set_slot;
+ verify_paths;
+
+ /* checkers */
+ sg_read;
+
+ /* prioritizers */
+ get_asymmetric_access_state;
+ get_prio_timeout;
+ get_target_port_group;
+ get_target_port_group_support;
+ libmp_nvme_ana_log;
+ libmp_nvme_get_nsid;
+ libmp_nvme_identify_ns;
+ log_nvme_errcode;
+ nvme_id_ctrl_ana;
+ snprint_host_wwnn;
+ snprint_host_wwpn;
+ snprint_path_serial;
+ snprint_tgt_wwnn;
+ snprint_tgt_wwpn;
+ sysfs_get_asymmetric_access_state;
+
+ /* foreign */
+ free_scandir_result;
+ sysfs_attr_get_value;
+
+local:
+ *;
+};
--
2.17.2

33
0010-multipath-tools-Makefile-more-dependency-fixes-for-p.patch
View File

@ -1,33 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 14:24:37 +0200
Subject: [PATCH] multipath-tools: Makefile: more dependency fixes for parallel
build
Extend the late fixes from Christian.
Cc: Christian Hesse <mail@eworm.de>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
index ba1d73ba..fec3b73b 100644
--- a/Makefile
+++ b/Makefile
@@ -28,8 +28,9 @@ all: $(BUILDDIRS)
$(BUILDDIRS):
$(MAKE) -C $@
-libmpathpersist multipath multipathd mpathpersist: libmultipath
-mpathpersist: libmpathpersist
+libmultipath libdmmp: libmpathcmd
+libmpathpersist multipath multipathd: libmultipath
+mpathpersist multipathd: libmpathpersist
$(BUILDDIRS.clean):
$(MAKE) -C ${@:.clean=} clean
--
2.17.2

81
0011-libmpathpersist-add-linker-version-script.patch Normal file
View File

@ -0,0 +1,81 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Sat, 19 Sep 2020 00:02:16 +0200
Subject: [PATCH] libmpathpersist: add linker version script
This defines the ABI of libmpathpersist in the current state.
The initial version is set to "LIBMPATHPERSIST_1.0.0".
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/Makefile | 6 +++--
libmpathpersist/libmpathpersist.version | 32 +++++++++++++++++++++++++
2 files changed, 36 insertions(+), 2 deletions(-)
create mode 100644 libmpathpersist/libmpathpersist.version
diff --git a/libmpathpersist/Makefile b/libmpathpersist/Makefile
index 9e869fdc..456ce4cf 100644
--- a/libmpathpersist/Makefile
+++ b/libmpathpersist/Makefile
@@ -3,6 +3,7 @@ include ../Makefile.inc
SONAME = 0
DEVLIB = libmpathpersist.so
LIBS = $(DEVLIB).$(SONAME)
+VERSION_SCRIPT := libmpathpersist.version
CFLAGS += $(LIB_CFLAGS) -I$(multipathdir) -I$(mpathpersistdir) -I$(mpathcmddir)
@@ -13,8 +14,9 @@ OBJS = mpath_persist.o mpath_updatepr.o mpath_pr_ioctl.o
all: $(DEVLIB) man
-$(LIBS): $(OBJS)
- $(CC) $(LDFLAGS) $(SHARED_FLAGS) $(LIBDEPS) -Wl,-soname=$@ -o $@ $(OBJS)
+$(LIBS): $(OBJS) $(VERSION_SCRIPT)
+ $(CC) $(LDFLAGS) $(SHARED_FLAGS) $(LIBDEPS) -Wl,-soname=$@ \
+ -Wl,--version-script=$(VERSION_SCRIPT) -o $@ $(OBJS)
$(DEVLIB): $(LIBS)
$(LN) $(LIBS) $@
diff --git a/libmpathpersist/libmpathpersist.version b/libmpathpersist/libmpathpersist.version
new file mode 100644
index 00000000..dc648ce6
--- /dev/null
+++ b/libmpathpersist/libmpathpersist.version
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2020 SUSE LLC
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * libmpathpersist ABI
+ *
+ * The ABI of libmpathpersist is supposed to remain stable. Removing symbols
+ * or altering existing symbols' semantics is not allowed. When changing a
+ * a symbol, either use a new name, or explicit symver directives.
+ *
+ * See libmultipath.version for general policy about version numbers.
+ */
+LIBMPATHPERSIST_1.0.0 {
+global:
+
+ __mpath_persistent_reserve_in;
+ __mpath_persistent_reserve_out;
+ dumpHex;
+ mpath_alloc_prin_response;
+ mpath_lib_exit;
+ mpath_lib_init;
+ mpath_mx_alloc_len;
+ mpath_persistent_reserve_in;
+ mpath_persistent_reserve_init_vecs;
+ mpath_persistent_reserve_out;
+ mpath_persistent_reserve_free_vecs;
+ prin_do_scsi_ioctl;
+ prout_do_scsi_ioctl;
+ update_map_pr;
+
+local: *;
+};
--
2.17.2

44
0011-multipath-tools-Makefile.inc-separate-out-OPTFLAGS.patch
View File

@ -1,44 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 15:27:34 +0200
Subject: [PATCH] multipath-tools: Makefile.inc: separate out OPTFLAGS
OPTFLAGS is what distribution builds would typically override. That
should not include the warning flags we use.
Moreover, in the definition of CFLAGS, put $(CFLAGS) first to make it
easier for the user to spot her input in the build logs.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile.inc | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/Makefile.inc b/Makefile.inc
index d4d1e0dd..7a59db85 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -93,14 +93,14 @@ STACKPROT := $(call TEST_CC_OPTION,-fstack-protector-strong,-fstack-protector)
ERROR_DISCARDED_QUALIFIERS := $(call TEST_CC_OPTION,-Werror=discarded-qualifiers,)
WNOCLOBBERED := $(call TEST_CC_OPTION,-Wno-clobbered,)
-OPTFLAGS = -O2 -g -pipe -Werror -Wall -Wextra -Wformat=2 -Werror=implicit-int \
+OPTFLAGS := -O2 -g $(STACKPROT) --param=ssp-buffer-size=4
+WARNFLAGS := -Werror -Wall -Wextra -Wformat=2 -Werror=implicit-int \
-Werror=implicit-function-declaration -Werror=format-security \
- $(WNOCLOBBERED) \
- -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS) \
- $(STACKPROT) --param=ssp-buffer-size=4
+ $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS)
CPPFLAGS := -Wp,-D_FORTIFY_SOURCE=2
-CFLAGS := $(OPTFLAGS) -DBIN_DIR=\"$(bindir)\" -DLIB_STRING=\"${LIB}\" -DRUN_DIR=\"${RUN}\" \
- -MMD -MP $(CFLAGS)
+CFLAGS := $(CFLAGS) $(OPTFLAGS) $(WARNFLAGS) -pipe \
+ -DBIN_DIR=\"$(bindir)\" -DLIB_STRING=\"${LIB}\" -DRUN_DIR=\"${RUN}\" \
+ -MMD -MP
BIN_CFLAGS = -fPIE -DPIE
LIB_CFLAGS = -fPIC
SHARED_FLAGS = -shared
--
2.17.2

74
0012-libmpathcmd-add-linker-version-script.patch Normal file
View File

@ -0,0 +1,74 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 22 Sep 2020 12:54:20 +0200
Subject: [PATCH] libmpathcmd: add linker version script
For completeness, this isn't really necessary.
The version string is set to "LIBMPATHCMD_1.0.0".
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathcmd/Makefile | 6 ++++--
libmpathcmd/libmpathcmd.version | 25 +++++++++++++++++++++++++
2 files changed, 29 insertions(+), 2 deletions(-)
create mode 100644 libmpathcmd/libmpathcmd.version
diff --git a/libmpathcmd/Makefile b/libmpathcmd/Makefile
index 08ccb811..25910194 100644
--- a/libmpathcmd/Makefile
+++ b/libmpathcmd/Makefile
@@ -3,6 +3,7 @@ include ../Makefile.inc
SONAME = 0
DEVLIB = libmpathcmd.so
LIBS = $(DEVLIB).$(SONAME)
+VERSION_SCRIPT := libmpathcmd.version
CFLAGS += $(LIB_CFLAGS)
@@ -10,8 +11,9 @@ OBJS = mpath_cmd.o
all: $(DEVLIB)
-$(LIBS): $(OBJS)
- $(CC) $(LDFLAGS) $(SHARED_FLAGS) -Wl,-soname=$@ -o $@ $(OBJS) $(LIBDEPS)
+$(LIBS): $(OBJS) $(VERSION_SCRIPT)
+ $(CC) $(LDFLAGS) $(SHARED_FLAGS) -Wl,-soname=$@ \
+ -Wl,--version-script=$(VERSION_SCRIPT) -o $@ $(OBJS) $(LIBDEPS)
$(DEVLIB): $(LIBS)
$(LN) $(LIBS) $@
diff --git a/libmpathcmd/libmpathcmd.version b/libmpathcmd/libmpathcmd.version
new file mode 100644
index 00000000..f1006280
--- /dev/null
+++ b/libmpathcmd/libmpathcmd.version
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2020 SUSE LLC
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * libmpathcmd ABI
+ *
+ * The ABI of libmpathcmd is supposed to remain stable. Removing symbols
+ * or altering existing symbols' semantics is not allowed. When changing a
+ * a symbol, either use a new name, or explicit symver directives.
+ *
+ * See libmultipath.version for general policy about version numbers.
+ */
+LIBMPATHCMD_1.0.0 {
+global:
+ __mpath_connect;
+ mpath_connect;
+ mpath_disconnect;
+ mpath_process_cmd;
+ mpath_recv_reply;
+ mpath_recv_reply_len;
+ mpath_recv_reply_data;
+ mpath_send_cmd;
+local:
+ *;
+};
--
2.17.2

33
0012-multipath-tools-Makefile.inc-allow-user-settings-for.patch
View File

@ -1,33 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 16:00:04 +0200
Subject: [PATCH] multipath-tools: Makefile.inc: allow user settings for
LDFLAGS
This allows e.g. setting LDFLAGS="-m32 -Wl,-b,elf32-i386" to compile
for a 32bit target on a 64bit system.
Note that, like CFLAGS, the variable needs to be set in the environment,
not on the "make" command line.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile.inc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile.inc b/Makefile.inc
index 7a59db85..671dd1ca 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -104,7 +104,7 @@ CFLAGS := $(CFLAGS) $(OPTFLAGS) $(WARNFLAGS) -pipe \
BIN_CFLAGS = -fPIE -DPIE
LIB_CFLAGS = -fPIC
SHARED_FLAGS = -shared
-LDFLAGS = -Wl,-z,relro -Wl,-z,now
+LDFLAGS := $(LDFLAGS) -Wl,-z,relro -Wl,-z,now
BIN_LDFLAGS = -pie
# Check whether a function with name $1 has been declared in header file $2.
--
2.17.2

38
0013-libmpathpersist-initialize-mpp-hwe-in-get_mpvec.patch Normal file
View File

@ -0,0 +1,38 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 25 Sep 2020 21:37:16 +0200
Subject: [PATCH] libmpathpersist: initialize mpp->hwe in get_mpvec()
In __mpath_persistent_reserve_out, we call select_all_tg_pt(),
which requires mpp->hwe to be set. Initialize it in get_mpvec().
Fixes: 5b54e77 ("mpathpersist: add all_tg_pt option")
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/mpath_persist.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libmpathpersist/mpath_persist.c b/libmpathpersist/mpath_persist.c
index 1f9817ed..4b3f3e0d 100644
--- a/libmpathpersist/mpath_persist.c
+++ b/libmpathpersist/mpath_persist.c
@@ -341,11 +341,13 @@ get_mpvec (vector curmp, vector pathvec, char * refwwid)
continue;
if (update_multipath_table(mpp, pathvec, DI_CHECKER) != DMP_OK ||
- update_multipath_status(mpp) != DMP_OK) {
+ update_multipath_status(mpp) != DMP_OK ||
+ update_mpp_paths(mpp, pathvec)) {
condlog(1, "error parsing map %s", mpp->wwid);
remove_map(mpp, pathvec, curmp, PURGE_VEC);
i--;
- }
+ } else
+ extract_hwe_from_path(mpp);
}
return MPATH_PR_SUCCESS ;
}
--
2.17.2

32
0013-multipath-tools-Makefile.inc-set-Wno-error-clobbered.patch
View File

@ -1,32 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 17:19:37 +0200
Subject: [PATCH] multipath-tools: Makefile.inc: set -Wno-error=clobbered
We need to ignore -Wclobbered because gcc has trouble dealing with glibc's
implementation of pthread_cleanup_push().
For some variants of gcc, -Wno-clobbered alone isn't enough if -Werror is also
set. Compilation with -Wno-error=clobbered works, though.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile.inc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile.inc b/Makefile.inc
index 671dd1ca..e7256e3a 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -91,7 +91,7 @@ TEST_CC_OPTION = $(shell \
STACKPROT := $(call TEST_CC_OPTION,-fstack-protector-strong,-fstack-protector)
ERROR_DISCARDED_QUALIFIERS := $(call TEST_CC_OPTION,-Werror=discarded-qualifiers,)
-WNOCLOBBERED := $(call TEST_CC_OPTION,-Wno-clobbered,)
+WNOCLOBBERED := $(call TEST_CC_OPTION,-Wno-clobbered -Wno-error=clobbered,)
OPTFLAGS := -O2 -g $(STACKPROT) --param=ssp-buffer-size=4
WARNFLAGS := -Werror -Wall -Wextra -Wformat=2 -Werror=implicit-int \
--
2.17.2

90
0014-libmultipath-discovery.c-use-z-qualifier-for-size_t.patch
View File

@ -1,90 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 16:02:25 +0200
Subject: [PATCH] libmultipath: discovery.c: use %z qualifier for size_t
Otherwise compilation for 32bit targets spits out warnings.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/discovery.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index ee3290cd..ffec5162 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -986,7 +986,7 @@ parse_vpd_pg80(const unsigned char *in, char *out, size_t out_len)
}
if (len >= out_len) {
- condlog(2, "vpd pg80 overflow, %lu/%lu bytes required",
+ condlog(2, "vpd pg80 overflow, %zu/%zu bytes required",
len + 1, out_len);
len = out_len - 1;
}
@@ -1087,7 +1087,7 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
len = sprintf(out, "%d", vpd_type);
if (2 * vpd_len >= out_len - len) {
- condlog(1, "%s: WWID overflow, type %d, %lu/%lu bytes required",
+ condlog(1, "%s: WWID overflow, type %d, %zu/%zu bytes required",
__func__, vpd_type,
2 * vpd_len + len + 1, out_len);
vpd_len = (out_len - len - 1) / 2;
@@ -1096,7 +1096,7 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
len += sprintf(out + len,
"%02x", vpd[i]);
} else if (vpd_type == 0x8 && vpd_len < 4) {
- condlog(1, "%s: VPD length %lu too small for designator type 8",
+ condlog(1, "%s: VPD length %zu too small for designator type 8",
__func__, vpd_len);
return -EINVAL;
} else if (vpd_type == 0x8) {
@@ -1112,7 +1112,7 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
while (len > 2 && vpd[len - 2] == '\0')
--len;
if (len > out_len - 1) {
- condlog(1, "%s: WWID overflow, type 8/%c, %lu/%lu bytes required",
+ condlog(1, "%s: WWID overflow, type 8/%c, %zu/%zu bytes required",
__func__, out[0], len + 1, out_len);
len = out_len - 1;
}
@@ -1136,7 +1136,7 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
while ((p = memchr(vpd, ' ', vpd_len))) {
p_len = p - vpd;
if (len + p_len > out_len - 1) {
- condlog(1, "%s: WWID overflow, type 1, %lu/%lu bytes required",
+ condlog(1, "%s: WWID overflow, type 1, %zu/%zu bytes required",
__func__, len + p_len, out_len);
p_len = out_len - len - 1;
}
@@ -1162,7 +1162,7 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
p_len = vpd_len;
if (p_len > 0 && len < out_len - 1) {
if (len + p_len > out_len - 1) {
- condlog(1, "%s: WWID overflow, type 1, %lu/%lu bytes required",
+ condlog(1, "%s: WWID overflow, type 1, %zu/%zu bytes required",
__func__, len + p_len + 1, out_len);
p_len = out_len - len - 1;
}
@@ -1186,14 +1186,14 @@ parse_vpd_c0_hp3par(const unsigned char *in, size_t in_len,
memset(out, 0x0, out_len);
if (in_len <= 4 || (in[4] > 3 && in_len < 44)) {
- condlog(3, "HP/3PAR vendor specific VPD page length too short: %lu", in_len);
+ condlog(3, "HP/3PAR vendor specific VPD page length too short: %zu", in_len);
return -EINVAL;
}
if (in[4] <= 3) /* revision must be > 3 to have Vomlume Name */
return -ENODATA;
len = get_unaligned_be32(&in[40]);
if (len > out_len || len + 44 > in_len) {
- condlog(3, "HP/3PAR vendor specific Volume name too long: %lu",
+ condlog(3, "HP/3PAR vendor specific Volume name too long: %zu",
len);
return -EINVAL;
}
--
2.17.2

140
0014-multipathd-allow-shutdown-during-configure.patch Normal file
View File

@ -0,0 +1,140 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 4 Jan 2019 16:59:49 +0100
Subject: [PATCH] multipathd: allow shutdown during configure()
reconfigure() can be a long-running operation; both initial path
discovery and initial map setup can take a long time. Allow
the main program to indicate that the process should be
interrupted if a shutdown signal was received.
We take advantage of the dynamic linker's symbol lookup ordering
here. The default implementation of should_exit never returns
true, but callers (like multipathd) can override it.
Cc: Chongyun Wu <wu.chongyun@h3c.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/configure.c | 6 ++++++
libmultipath/discovery.c | 3 +++
libmultipath/util.c | 5 +++++
libmultipath/util.h | 1 +
multipathd/main.c | 17 +++++++++++++++++
5 files changed, 32 insertions(+)
diff --git a/libmultipath/configure.c b/libmultipath/configure.c
index d7afc915..1c8aac08 100644
--- a/libmultipath/configure.c
+++ b/libmultipath/configure.c
@@ -1173,6 +1173,12 @@ int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
vector_foreach_slot (pathvec, pp1, k) {
int invalid;
+
+ if (should_exit()) {
+ ret = CP_FAIL;
+ goto out;
+ }
+
/* skip this path for some reason */
/* 1. if path has no unique id or wwid blacklisted */
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index c2e1754c..e7084664 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -200,6 +200,9 @@ path_discovery (vector pathvec, int flag)
const char *devtype;
const char *devpath;
+ if (should_exit())
+ break;
+
devpath = udev_list_entry_get_name(entry);
condlog(4, "Discover device %s", devpath);
udevice = udev_device_new_from_syspath(udev, devpath);
diff --git a/libmultipath/util.c b/libmultipath/util.c
index 1748eafe..1f977792 100644
--- a/libmultipath/util.c
+++ b/libmultipath/util.c
@@ -445,3 +445,8 @@ void _log_bitfield_overflow(const char *f, unsigned int bit, unsigned int len)
{
condlog(0, "%s: bitfield overflow: %u >= %u", f, bit, len);
}
+
+int should_exit(void)
+{
+ return 0;
+}
diff --git a/libmultipath/util.h b/libmultipath/util.h
index 2b9703ac..ac19473e 100644
--- a/libmultipath/util.h
+++ b/libmultipath/util.h
@@ -27,6 +27,7 @@ int parse_prkey(const char *ptr, uint64_t *prkey);
int parse_prkey_flags(const char *ptr, uint64_t *prkey, uint8_t *flags);
int safe_write(int fd, const void *buf, size_t count);
void set_max_fds(rlim_t max_fds);
+int should_exit(void);
#define KERNEL_VERSION(maj, min, ptc) ((((maj) * 256) + (min)) * 256 + (ptc))
#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
diff --git a/multipathd/main.c b/multipathd/main.c
index eedc6c10..fa53e963 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -141,6 +141,11 @@ static inline enum daemon_status get_running_state(void)
return st;
}
+int should_exit(void)
+{
+ return get_running_state() == DAEMON_SHUTDOWN;
+}
+
/*
* global copy of vecs for use in sig handlers
*/
@@ -2570,6 +2575,9 @@ configure (struct vectors * vecs)
goto fail;
}
+ if (should_exit())
+ goto fail;
+
conf = get_multipath_config();
pthread_cleanup_push(put_multipath_config, conf);
vector_foreach_slot (vecs->pathvec, pp, i){
@@ -2586,6 +2594,9 @@ configure (struct vectors * vecs)
goto fail;
}
+ if (should_exit())
+ goto fail;
+
/*
* create new set of maps & push changed ones into dm
* In the first call, use FORCE_RELOAD_WEAK to avoid making
@@ -2600,6 +2611,9 @@ configure (struct vectors * vecs)
goto fail;
}
+ if (should_exit())
+ goto fail;
+
/*
* may need to remove some maps which are no longer relevant
* e.g., due to blacklist changes in conf file
@@ -2611,6 +2625,9 @@ configure (struct vectors * vecs)
dm_lib_release();
+ if (should_exit())
+ goto fail;
+
sync_maps_state(mpvec);
vector_foreach_slot(mpvec, mpp, i){
if (remember_wwid(mpp->wwid) == 1)
--
2.17.2

198
0015-libmultipath-eliminate-more-signed-unsigned-comparis.patch
View File

@ -1,198 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 16:03:58 +0200
Subject: [PATCH] libmultipath: eliminate more signed/unsigned comparisons
Fix some more compiler warnings about signed/unsigned comparison.
I've observed these only on 32bit builds, therefore they went unnoticed
before.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/mpath_pr_ioctl.c | 2 +-
libmultipath/print.c | 12 ++++++------
libmultipath/prioritizers/alua_spc3.h | 2 +-
multipathd/cli_handlers.c | 20 ++++++++++----------
multipathd/main.c | 2 +-
5 files changed, 19 insertions(+), 19 deletions(-)
diff --git a/libmpathpersist/mpath_pr_ioctl.c b/libmpathpersist/mpath_pr_ioctl.c
index fadc9e10..126601c3 100644
--- a/libmpathpersist/mpath_pr_ioctl.c
+++ b/libmpathpersist/mpath_pr_ioctl.c
@@ -238,7 +238,7 @@ static void mpath_format_readfullstatus(struct prin_resp *pr_buff)
uint32_t additional_length, k, tid_len_len = 0;
char tempbuff[MPATH_MAX_PARAM_LEN];
struct prin_fulldescr fdesc;
- static const int pbuf_size =
+ static const unsigned int pbuf_size =
sizeof(pr_buff->prin_descriptor.prin_readfd.private_buffer);
convert_be32_to_cpu(&pr_buff->prin_descriptor.prin_readfd.prgeneration);
diff --git a/libmultipath/print.c b/libmultipath/print.c
index b944ef32..298b3764 100644
--- a/libmultipath/print.c
+++ b/libmultipath/print.c
@@ -1958,25 +1958,25 @@ char *snprint_config(const struct config *conf, int *len,
}
c = reply + snprint_defaults(conf, reply, maxlen);
- if ((c - reply) == maxlen)
+ if (c == reply + maxlen)
continue;
c += snprint_blacklist(conf, c, reply + maxlen - c);
- if ((c - reply) == maxlen)
+ if (c == reply + maxlen)
continue;
c += snprint_blacklist_except(conf, c, reply + maxlen - c);
- if ((c - reply) == maxlen)
+ if (c == reply + maxlen)
continue;
c += snprint_hwtable(conf, c, reply + maxlen - c,
hwtable ? hwtable : conf->hwtable);
- if ((c - reply) == maxlen)
+ if (c == reply + maxlen)
continue;
c += snprint_overrides(conf, c, reply + maxlen - c,
conf->overrides);
- if ((c - reply) == maxlen)
+ if (c == reply + maxlen)
continue;
if (VECTOR_SIZE(conf->mptable) > 0 ||
@@ -1984,7 +1984,7 @@ char *snprint_config(const struct config *conf, int *len,
c += snprint_mptable(conf, c, reply + maxlen - c,
mpvec);
- if ((c - reply) < maxlen) {
+ if (c < reply + maxlen) {
if (len)
*len = c - reply;
return reply;
diff --git a/libmultipath/prioritizers/alua_spc3.h b/libmultipath/prioritizers/alua_spc3.h
index 18b495ef..7ba2cf4c 100644
--- a/libmultipath/prioritizers/alua_spc3.h
+++ b/libmultipath/prioritizers/alua_spc3.h
@@ -284,7 +284,7 @@ struct rtpg_data {
#define RTPG_FOR_EACH_PORT_GROUP(p, g) \
for( \
g = &(p->data[0]); \
- (((char *) g) - ((char *) p)) < get_unaligned_be32(p->length); \
+ ((char *) g) < ((char *) p) + get_unaligned_be32(p->length); \
g = (struct rtpg_tpg_dscr *) ( \
((char *) g) + \
sizeof(struct rtpg_tpg_dscr) + \
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index 7d878c88..31c3d9fd 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -66,7 +66,7 @@ show_paths (char ** r, int * len, struct vectors * vecs, char * style,
c += snprint_foreign_paths(c, reply + maxlen - c,
style, pretty);
- again = ((c - reply) == (maxlen - 1));
+ again = (c == reply + maxlen - 1);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -102,7 +102,7 @@ show_path (char ** r, int * len, struct vectors * vecs, struct path *pp,
c += snprint_path(c, reply + maxlen - c, style, pp, 0);
- again = ((c - reply) == (maxlen - 1));
+ again = (c == reply + maxlen - 1);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -131,7 +131,7 @@ show_map_topology (char ** r, int * len, struct multipath * mpp,
c = reply;
c += snprint_multipath_topology(c, reply + maxlen - c, mpp, 2);
- again = ((c - reply) == (maxlen - 1));
+ again = (c == reply + maxlen - 1);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -171,7 +171,7 @@ show_maps_topology (char ** r, int * len, struct vectors * vecs)
}
c += snprint_foreign_topology(c, reply + maxlen - c, 2);
- again = ((c - reply) == (maxlen - 1));
+ again = (c == reply + maxlen - 1);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -209,7 +209,7 @@ show_maps_json (char ** r, int * len, struct vectors * vecs)
c = reply;
c += snprint_multipath_topology_json(c, maxlen, vecs);
- again = ((c - reply) == maxlen);
+ again = (c == reply + maxlen);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -238,7 +238,7 @@ show_map_json (char ** r, int * len, struct multipath * mpp,
c = reply;
c += snprint_multipath_map_json(c, maxlen, mpp);
- again = ((c - reply) == maxlen);
+ again = (c == reply + maxlen);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -487,7 +487,7 @@ show_map (char ** r, int *len, struct multipath * mpp, char * style,
c += snprint_multipath(c, reply + maxlen - c, style,
mpp, pretty);
- again = ((c - reply) == (maxlen - 1));
+ again = (c == reply + maxlen - 1);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -533,7 +533,7 @@ show_maps (char ** r, int *len, struct vectors * vecs, char * style,
}
c += snprint_foreign_multipaths(c, reply + maxlen - c,
style, pretty);
- again = ((c - reply) == (maxlen - 1));
+ again = (c == reply + maxlen - 1);
REALLOC_REPLY(reply, again, maxlen);
}
@@ -1297,7 +1297,7 @@ show_blacklist (char ** r, int * len)
c = reply;
c += snprint_blacklist_report(conf, c, maxlen);
- again = ((c - reply) == maxlen);
+ again = (c == reply + maxlen);
REALLOC_REPLY(reply, again, maxlen);
}
pthread_cleanup_pop(1);
@@ -1339,7 +1339,7 @@ show_devices (char ** r, int * len, struct vectors *vecs)
c = reply;
c += snprint_devices(conf, c, maxlen, vecs);
- again = ((c - reply) == maxlen);
+ again = (c == reply + maxlen);
REALLOC_REPLY(reply, again, maxlen);
}
pthread_cleanup_pop(1);
diff --git a/multipathd/main.c b/multipathd/main.c
index 8baf9abe..6b7db2c0 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -2374,7 +2374,7 @@ checkerloop (void *ap)
conf = get_multipath_config();
max_checkint = conf->max_checkint;
put_multipath_config(conf);
- if (diff_time.tv_sec > max_checkint)
+ if (diff_time.tv_sec > (time_t)max_checkint)
condlog(1, "path checkers took longer "
"than %lu seconds, consider "
"increasing max_polling_interval",
--
2.17.2

67
0015-multipathd-avoid-sending-READY-1-to-systemd-on-early.patch Normal file
View File

@ -0,0 +1,67 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 10:23:05 +0200
Subject: [PATCH] multipathd: avoid sending "READY=1" to systemd on early
shutdown
If multipathd gets a shutdown request during initial reconfigure(),
it shouldn't send "READY=1" to systemd. Ensure this by sending
"READY=1" via post_config_state().
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index fa53e963..53a22a43 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -189,6 +189,8 @@ static void do_sd_notify(enum daemon_status old_state,
{
char notify_msg[MSG_SIZE];
const char *msg;
+ static bool startup_done = false;
+
/*
* Checkerloop switches back and forth between idle and running state.
* No need to tell systemd each time.
@@ -205,6 +207,11 @@ static void do_sd_notify(enum daemon_status old_state,
if (msg && !safe_sprintf(notify_msg, "STATUS=%s", msg))
sd_notify(0, notify_msg);
+
+ if (new_state == DAEMON_IDLE && !startup_done) {
+ sd_notify(0, "READY=1");
+ startup_done = true;
+ }
}
#endif
@@ -2903,9 +2910,6 @@ child (__attribute__((unused)) void *param)
struct vectors * vecs;
struct multipath * mpp;
int i;
-#ifdef USE_SYSTEMD
- int startup_done = 0;
-#endif
int rc;
int pid_fd = -1;
struct config *conf;
@@ -3065,12 +3069,6 @@ child (__attribute__((unused)) void *param)
}
lock_cleanup_pop(vecs->lock);
post_config_state(DAEMON_IDLE);
-#ifdef USE_SYSTEMD
- if (!startup_done) {
- sd_notify(0, "READY=1");
- startup_done = 1;
- }
-#endif
}
}
--
2.17.2

48
0016-libmultipath-set_uint-fix-parsing-for-32bit.patch
View File

@ -1,48 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 22:22:25 +0200
Subject: [PATCH] libmultipath: set_uint: fix parsing for 32bit
On architectures where sizeof(long) == sizeof(int), the code wouldn't
work as intended. Use strtoul instead. As strtoul happily parses
negative numbers as input, require the number to begin with a digit.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 3e25e74f..0e9ea387 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -60,19 +60,22 @@ static int
set_uint(vector strvec, void *ptr)
{
unsigned int *uint_ptr = (unsigned int *)ptr;
- char *buff, *eptr;
- long res;
+ char *buff, *eptr, *p;
+ unsigned long res;
int rc;
buff = set_value(strvec);
if (!buff)
return 1;
- res = strtol(buff, &eptr, 10);
+ p = buff;
+ while (isspace(*p))
+ p++;
+ res = strtoul(p, &eptr, 10);
if (eptr > buff)
while (isspace(*eptr))
eptr++;
- if (*buff == '\0' || *eptr != '\0' || res < 0 || res > UINT_MAX) {
+ if (*buff == '\0' || *eptr != '\0' || !isdigit(*p) || res > UINT_MAX) {
condlog(1, "%s: invalid value for %s: \"%s\"",
__func__, (char*)VECTOR_SLOT(strvec, 0), buff);
rc = 1;
--
2.17.2

31
0016-multipathd-send-STOPPING-1-to-systemd-on-shutdown.patch Normal file
View File

@ -0,0 +1,31 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 10:47:52 +0200
Subject: [PATCH] multipathd: send "STOPPING=1" to systemd on shutdown
Inform systemd that the daemon is shutting down. See sd_notify(3).
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 53a22a43..c264351c 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -208,7 +208,9 @@ static void do_sd_notify(enum daemon_status old_state,
if (msg && !safe_sprintf(notify_msg, "STATUS=%s", msg))
sd_notify(0, notify_msg);
- if (new_state == DAEMON_IDLE && !startup_done) {
+ if (new_state == DAEMON_SHUTDOWN)
+ sd_notify(0, "STOPPING=1");
+ else if (new_state == DAEMON_IDLE && !startup_done) {
sd_notify(0, "READY=1");
startup_done = true;
}
--
2.17.2

28
0017-multipath-tools-tests-Makefile-add-lmpathcmd-to-LIBD.patch
View File

@ -1,28 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 18:24:19 +0200
Subject: [PATCH] multipath-tools tests/Makefile: add -lmpathcmd to LIBDEPS
Make sure the linker finds libmpathcmd.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
tests/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/Makefile b/tests/Makefile
index 77ff3249..028c9ea7 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -10,7 +10,7 @@ W_MISSING_INITIALIZERS := $(call TEST_MISSING_INITIALIZERS)
CFLAGS += $(BIN_CFLAGS) -I$(multipathdir) -I$(mpathcmddir) \
-Wno-unused-parameter $(W_MISSING_INITIALIZERS)
-LIBDEPS += -L$(multipathdir) -lmultipath -lcmocka
+LIBDEPS += -L$(multipathdir) -L$(mpathcmddir) -lmultipath -lmpathcmd -lcmocka
TESTS := uevent parser util dmevents hwtable blacklist unaligned vpd pgpolicy \
alias directio
--
2.17.2

42
0017-multipathd-send-RELOADING-1-to-systemd-on-DAEMON_CON.patch Normal file
View File

@ -0,0 +1,42 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 10:57:22 +0200
Subject: [PATCH] multipathd: send "RELOADING=1" to systemd on DAEMON_CONFIGURE
state
The logic is as follows: child() sets DAEMON_IDLE status after
DAEMON_CONFIGURE when reconfigure() has finished. The only other state change
that can race with that is DAEMON_SHUTDOWN. Other state changes will wait for
DAEMON_IDLE first (see set_config_state()). When DAEMON_CONFIGURE is entered,
and we are not just starting up, send a "RELOADING=1" message to
systemd. After that, we must send "READY=1" when we're done reloading. Also
do that on startup, when DAEMON_IDLE is set for the first time.
See sd_notify(3).
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index c264351c..e3f2328d 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -210,10 +210,11 @@ static void do_sd_notify(enum daemon_status old_state,
if (new_state == DAEMON_SHUTDOWN)
sd_notify(0, "STOPPING=1");
- else if (new_state == DAEMON_IDLE && !startup_done) {
+ else if (new_state == DAEMON_IDLE && old_state == DAEMON_CONFIGURE) {
sd_notify(0, "READY=1");
startup_done = true;
- }
+ } else if (new_state == DAEMON_CONFIGURE && startup_done)
+ sd_notify(0, "RELOADING=1");
}
#endif
--
2.17.2

34
0018-multipath-tools-tests-Makefile-Fix-OBJDEPS-for-hwtab.patch
View File

@ -1,34 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 23:44:19 +0200
Subject: [PATCH] multipath tools tests/Makefile: Fix OBJDEPS for hwtable-test
OBJDEPS needs to list object files that _call_ functions we want
to wrap, but it should _not_ list the object files where these
functions are defined; otherwise the linker might resolve these
symbols before they can be wrapped.
(Observed on i586 with gcc 9.3.1, ld 2.34.0, where wrapping
prio_getprio() doesn't work with prio.o in OBJDEPS).
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
tests/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/Makefile b/tests/Makefile
index 028c9ea7..1b8706a7 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -41,7 +41,7 @@ endif
dmevents-test_LIBDEPS = -lpthread -ldevmapper -lurcu
hwtable-test_TESTDEPS := test-lib.o
hwtable-test_OBJDEPS := ../libmultipath/discovery.o ../libmultipath/blacklist.o \
- ../libmultipath/prio.o ../libmultipath/callout.o ../libmultipath/structs.o
+ ../libmultipath/structs.o
hwtable-test_LIBDEPS := -ludev -lpthread -ldl
blacklist-test_TESTDEPS := test-log.o
blacklist-test_OBJDEPS := ../libmultipath/blacklist.o
--
2.17.2

31
0018-multipathd-use-volatile-qualifier-for-running_state.patch Normal file
View File

@ -0,0 +1,31 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 12:44:59 +0200
Subject: [PATCH] multipathd: use volatile qualifier for running_state
While we access running_state only under the config_lock,
we sometimes do in a loop. Use the volatile qualifier to make
sure compilers can't optimize away the loads.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index e3f2328d..d081b3e9 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -126,7 +126,7 @@ int poll_dmevents = 0;
int poll_dmevents = 1;
#endif
/* Don't access this variable without holding config_lock */
-enum daemon_status running_state = DAEMON_INIT;
+volatile enum daemon_status running_state = DAEMON_INIT;
pid_t daemon_pid;
pthread_mutex_t config_lock = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t config_cond;
--
2.17.2

33
0019-multipath-tools-tests-test-lib.c-drop-__wrap_is_clai.patch
View File

@ -1,33 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 11 May 2020 23:43:02 +0200
Subject: [PATCH] multipath-tools tests/test-lib.c: drop
__wrap_is_claimed_by_foreign
is_claimed_by_foreign() is an inline function and can't be wrapped.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
tests/test-lib.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/tests/test-lib.c b/tests/test-lib.c
index 59275163..00bae58e 100644
--- a/tests/test-lib.c
+++ b/tests/test-lib.c
@@ -56,12 +56,6 @@ int __wrap_execute_program(char *path, char *value, int len)
return 0;
}
-bool __wrap_is_claimed_by_foreign(struct udev_device *ud)
-{
- condlog(5, "%s: %p", __func__, ud);
- return false;
-}
-
struct udev_list_entry
*__wrap_udev_device_get_properties_list_entry(struct udev_device *ud)
{
--
2.17.2

72
0019-multipathd-generalize-and-fix-wait_for_state_change_.patch Normal file
View File

@ -0,0 +1,72 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 12:46:36 +0200
Subject: [PATCH] multipathd: generalize and fix wait_for_state_change_if()
It's unlikely but not impossible that other threads change the state
while we're waiting, and if we grab the lock again, it's still not
what we wanted. We need to continue waiting until either the condition
is met, or time timeout expired.
Moreover, generalize this code so that it can also be used in
set_config_state().
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 25 ++++++++++++++++++-------
1 file changed, 18 insertions(+), 7 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index d081b3e9..1fb0ee62 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -223,6 +223,23 @@ static void config_cleanup(__attribute__((unused)) void *arg)
pthread_mutex_unlock(&config_lock);
}
+#define __wait_for_state_change(condition, ms) \
+ ({ \
+ struct timespec tmo; \
+ int rc = 0; \
+ \
+ if (condition) { \
+ get_monotonic_time(&tmo); \
+ tmo.tv_nsec += (ms) * 1000 * 1000; \
+ normalize_timespec(&tmo); \
+ do \
+ rc = pthread_cond_timedwait( \
+ &config_cond, &config_lock, &tmo); \
+ while (rc == 0 && (condition)); \
+ } \
+ rc; \
+ })
+
/*
* If the current status is @oldstate, wait for at most @ms milliseconds
* for the state to change, and return the new state, which may still be
@@ -232,20 +249,14 @@ enum daemon_status wait_for_state_change_if(enum daemon_status oldstate,
unsigned long ms)
{
enum daemon_status st;
- struct timespec tmo;
if (oldstate == DAEMON_SHUTDOWN)
return DAEMON_SHUTDOWN;
pthread_mutex_lock(&config_lock);
pthread_cleanup_push(config_cleanup, NULL);
+ __wait_for_state_change(running_state == oldstate, ms);
st = running_state;
- if (st == oldstate && clock_gettime(CLOCK_MONOTONIC, &tmo) == 0) {
- tmo.tv_nsec += ms * 1000 * 1000;
- normalize_timespec(&tmo);
- (void)pthread_cond_timedwait(&config_cond, &config_lock, &tmo);
- st = running_state;
- }
pthread_cleanup_pop(1);
return st;
}
--
2.17.2

29
0020-multipath-tools-tests-directio-fix-Wmaybe-uninitaliz.patch
View File

@ -1,29 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 12 May 2020 00:11:39 +0200
Subject: [PATCH] multipath-tools tests/directio: fix -Wmaybe-uninitalized
warning
Initialize aio_grp to satisfy gcc.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
tests/directio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/directio.c b/tests/directio.c
index 3cd7a520..66aaf0eb 100644
--- a/tests/directio.c
+++ b/tests/directio.c
@@ -316,7 +316,7 @@ static void test_init_free(void **state)
{
int i, count = 0;
struct checker c[4096] = {0};
- struct aio_group *aio_grp;
+ struct aio_group *aio_grp = NULL;
assert_true(list_empty(&aio_grp_list));
will_return(__wrap_io_setup, 0);
--
2.17.2

55
0020-multipathd-set_config_state-avoid-code-duplication.patch Normal file
View File

@ -0,0 +1,55 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 12:48:55 +0200
Subject: [PATCH] multipathd: set_config_state(): avoid code duplication
Use __post_config_state() and __wait_for_state_change(). This
way __post_config_state() is the only place where running_state
is ever changed, and we avoid code duplication.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 23 +++++------------------
1 file changed, 5 insertions(+), 18 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 1fb0ee62..39aea4ad 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -292,27 +292,14 @@ int set_config_state(enum daemon_status state)
pthread_cleanup_push(config_cleanup, NULL);
pthread_mutex_lock(&config_lock);
if (running_state != state) {
-#ifdef USE_SYSTEMD
- enum daemon_status old_state = running_state;
-#endif
if (running_state == DAEMON_SHUTDOWN)
rc = EINVAL;
- else if (running_state != DAEMON_IDLE) {
- struct timespec ts;
-
- get_monotonic_time(&ts);
- ts.tv_sec += 1;
- rc = pthread_cond_timedwait(&config_cond,
- &config_lock, &ts);
- }
- if (!rc && (running_state != DAEMON_SHUTDOWN)) {
- running_state = state;
- pthread_cond_broadcast(&config_cond);
-#ifdef USE_SYSTEMD
- do_sd_notify(old_state, state);
-#endif
- }
+ else
+ rc = __wait_for_state_change(
+ running_state != DAEMON_IDLE, 1000);
+ if (!rc)
+ __post_config_state(state);
}
pthread_cleanup_pop(1);
return rc;
--
2.17.2

83
0021-libmultipath-move-libsg-into-libmultipath.patch
View File

@ -1,83 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 12 May 2020 16:46:15 +0200
Subject: [PATCH] libmultipath: move libsg into libmultipath
sg_read() is called from readsector0 and emc_clariion. Move it
to libmultipath/, where all common code resides.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/Makefile | 3 ++-
libmultipath/checkers/Makefile | 6 +++---
libmultipath/{checkers => }/libsg.c | 0
libmultipath/{checkers => }/libsg.h | 0
libmultipath/prioritizers/Makefile | 2 +-
5 files changed, 6 insertions(+), 5 deletions(-)
rename libmultipath/{checkers => }/libsg.c (100%)
rename libmultipath/{checkers => }/libsg.h (100%)
diff --git a/libmultipath/Makefile b/libmultipath/Makefile
index ad690a49..f19b7ad2 100644
--- a/libmultipath/Makefile
+++ b/libmultipath/Makefile
@@ -47,7 +47,8 @@ OBJS = memory.o parser.o vector.o devmapper.o callout.o \
switchgroup.o uxsock.o print.o alias.o log_pthread.o \
log.o configure.o structs_vec.o sysfs.o prio.o checkers.o \
lock.o file.o wwids.o prioritizers/alua_rtpg.o prkey.o \
- io_err_stat.o dm-generic.o generic.o foreign.o nvme-lib.o
+ io_err_stat.o dm-generic.o generic.o foreign.o nvme-lib.o \
+ libsg.o
all: $(LIBS)
diff --git a/libmultipath/checkers/Makefile b/libmultipath/checkers/Makefile
index 02caea64..01c04510 100644
--- a/libmultipath/checkers/Makefile
+++ b/libmultipath/checkers/Makefile
@@ -17,10 +17,10 @@ LIBS= \
all: $(LIBS)
-libcheckdirectio.so: libsg.o directio.o
+libcheckdirectio.so: directio.o
$(CC) $(LDFLAGS) $(SHARED_FLAGS) -o $@ $^ -laio
-libcheck%.so: libsg.o %.o
+libcheck%.so: %.o
$(CC) $(LDFLAGS) $(SHARED_FLAGS) -o $@ $^
install:
@@ -32,7 +32,7 @@ uninstall:
clean: dep_clean
$(RM) core *.a *.o *.gz *.so
-OBJS := $(LIBS:libcheck%.so=%.o) libsg.o directio.o
+OBJS := $(LIBS:libcheck%.so=%.o)
.SECONDARY: $(OBJS)
include $(wildcard $(OBJS:.o=.d))
diff --git a/libmultipath/checkers/libsg.c b/libmultipath/libsg.c
similarity index 100%
rename from libmultipath/checkers/libsg.c
rename to libmultipath/libsg.c
diff --git a/libmultipath/checkers/libsg.h b/libmultipath/libsg.h
similarity index 100%
rename from libmultipath/checkers/libsg.h
rename to libmultipath/libsg.h
diff --git a/libmultipath/prioritizers/Makefile b/libmultipath/prioritizers/Makefile
index 9d0fe03c..fc6e0e0c 100644
--- a/libmultipath/prioritizers/Makefile
+++ b/libmultipath/prioritizers/Makefile
@@ -28,7 +28,7 @@ endif
all: $(LIBS)
-libpriopath_latency.so: path_latency.o ../checkers/libsg.o
+libpriopath_latency.so: path_latency.o
$(CC) $(LDFLAGS) $(SHARED_FLAGS) -o $@ $^ -lm
libprio%.so: %.o
--
2.17.2

61
0021-multipathd-cancel-threads-early-during-shutdown.patch Normal file
View File

@ -0,0 +1,61 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 4 Jan 2019 17:10:25 +0100
Subject: [PATCH] multipathd: cancel threads early during shutdown
Cancel the other threads before taking vecs->lock. This avoids
delays during shutdown caused e.g. by the checker thread holding
the vecs lock.
Note: this makes it possible that cancelled threads leak memory,
because they can now be cancelled before having released the vecs
lock. I believe this is acceptable, as only threads are affected
that are cancelled during multipathd shutdown.
Cc: Chongyun Wu <wu.chongyun@h3c.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 39aea4ad..d1f8cc1b 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -3073,23 +3073,24 @@ child (__attribute__((unused)) void *param)
}
}
- lock(&vecs->lock);
+ pthread_cancel(check_thr);
+ pthread_cancel(uevent_thr);
+ pthread_cancel(uxlsnr_thr);
+ pthread_cancel(uevq_thr);
+ if (poll_dmevents)
+ pthread_cancel(dmevent_thr);
+
conf = get_multipath_config();
queue_without_daemon = conf->queue_without_daemon;
put_multipath_config(conf);
+
+ lock(&vecs->lock);
if (queue_without_daemon == QUE_NO_DAEMON_OFF)
vector_foreach_slot(vecs->mpvec, mpp, i)
dm_queue_if_no_path(mpp->alias, 0);
remove_maps_and_stop_waiters(vecs);
unlock(&vecs->lock);
- pthread_cancel(check_thr);
- pthread_cancel(uevent_thr);
- pthread_cancel(uxlsnr_thr);
- pthread_cancel(uevq_thr);
- if (poll_dmevents)
- pthread_cancel(dmevent_thr);
-
pthread_join(check_thr, NULL);
pthread_join(uevent_thr, NULL);
pthread_join(uxlsnr_thr, NULL);
--
2.17.2

32
0022-multipath-tools-Makefile-add-install-dependency.patch
View File

@ -1,32 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 12 May 2020 22:13:51 +0200
Subject: [PATCH] multipath-tools Makefile: add install dependency
$(libdir) must exist before running "make install" on prioritizer, checker,
and foreign libraries.
Cc: Christian Hesse <mail@eworm.de>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Makefile b/Makefile
index fec3b73b..8bcaba66 100644
--- a/Makefile
+++ b/Makefile
@@ -32,6 +32,10 @@ libmultipath libdmmp: libmpathcmd
libmpathpersist multipath multipathd: libmultipath
mpathpersist multipathd: libmpathpersist
+libmultipath/checkers.install \
+ libmultipath/prioritizers.install \
+ libmultipath/foreign.install: libmultipath.install
+
$(BUILDDIRS.clean):
$(MAKE) -C ${@:.clean=} clean
--
2.17.2

165
0022-multipath-tools-don-t-call-dm_lib_release-any-more.patch Normal file
View File

@ -0,0 +1,165 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 17:57:16 +0200
Subject: [PATCH] multipath-tools: don't call dm_lib_release() any more
The purpose of dm_lib_release() is to release stacked device node
operations in libdevmapper. This is functionality we don't need and
use any more, as we rely on udev to set up device nodes and symlinks.
We always set DM_UDEV_DISABLE_LIBRARY_FALLBACK when we run dm tasks.
In the standard CREATE and REMOVE cases, libdevmapper doesn't
stack any operations if this flag is set. The only exceptions are
a) RESUME operations with DM_ADD_NODE_ON_RESUME set. This happens
implicity when we create new maps
b) RENAME operations
In both cases, we call dm_udev_wait() after the libdm operation, which
calls update_devs() and thus has the same effect as dm_lib_release(),
cleaning out stacked operations.
OTOH, dm_lib_releases() accesses static variables in libdevmapper, so
calling it might be racy.
Drop the calls to dm_lib_release().
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
kpartx/kpartx.c | 1 -
libmpathpersist/mpath_persist.c | 1 -
multipath/main.c | 1 -
multipathd/cli_handlers.c | 2 --
multipathd/main.c | 15 ++-------------
5 files changed, 2 insertions(+), 18 deletions(-)
diff --git a/kpartx/kpartx.c b/kpartx/kpartx.c
index 4a0aae93..6a7933fa 100644
--- a/kpartx/kpartx.c
+++ b/kpartx/kpartx.c
@@ -681,7 +681,6 @@ main(int argc, char **argv){
}
end:
- dm_lib_release();
dm_lib_exit();
return r;
diff --git a/libmpathpersist/mpath_persist.c b/libmpathpersist/mpath_persist.c
index 4b3f3e0d..cc4a088d 100644
--- a/libmpathpersist/mpath_persist.c
+++ b/libmpathpersist/mpath_persist.c
@@ -56,7 +56,6 @@ mpath_lib_init (void)
int
mpath_lib_exit (struct config *conf)
{
- dm_lib_release();
dm_lib_exit();
cleanup_prio();
cleanup_checkers();
diff --git a/multipath/main.c b/multipath/main.c
index 9e920d89..dc4974b9 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -1063,7 +1063,6 @@ main (int argc, char *argv[])
condlog(3, "restart multipath configuration process");
out:
- dm_lib_release();
dm_lib_exit();
cleanup_foreign();
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index 235e2a2e..54635738 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -860,7 +860,6 @@ cli_add_map (void * v, char ** reply, int * len, void * data)
!= CP_OK)
condlog(2, "%s: coalesce_paths failed",
param);
- dm_lib_release();
FREE(refwwid);
}
} /*we attempt to create device only once*/
@@ -1032,7 +1031,6 @@ cli_resize(void *v, char **reply, int *len, void *data)
if (resize_map(mpp, size, vecs) != 0)
return 1;
- dm_lib_release();
if (setup_multipath(vecs, mpp) != 0)
return 1;
sync_map_state(mpp);
diff --git a/multipathd/main.c b/multipathd/main.c
index d1f8cc1b..5cc34357 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -510,7 +510,6 @@ retry:
sleep(1);
goto retry;
}
- dm_lib_release();
fail:
if (new_map && (retries < 0 || wait_for_events(mpp, vecs))) {
@@ -611,10 +610,8 @@ coalesce_maps(struct vectors *vecs, vector nmpv)
vector_del_slot(ompv, i);
i--;
}
- else {
- dm_lib_release();
+ else
condlog(2, "%s devmap removed", ompp->alias);
- }
} else if (reassign_maps) {
condlog(3, "%s: Reassign existing device-mapper"
" devices", ompp->alias);
@@ -660,10 +657,8 @@ flush_map(struct multipath * mpp, struct vectors * vecs, int nopaths)
}
return r;
}
- else {
- dm_lib_release();
+ else
condlog(2, "%s: map flushed", mpp->alias);
- }
orphan_paths(vecs->pathvec, mpp, "map flushed");
remove_map_and_stop_waiter(mpp, vecs);
@@ -1080,7 +1075,6 @@ rescan:
else
goto fail_map;
}
- dm_lib_release();
if ((mpp->action == ACT_CREATE ||
(mpp->action == ACT_NOTHING && start_waiter && !mpp->waiter)) &&
@@ -1947,8 +1941,6 @@ int reload_and_sync_map(struct multipath *mpp,
{
if (reload_map(vecs, mpp, refresh, 1))
return 1;
-
- dm_lib_release();
if (setup_multipath(vecs, mpp) != 0)
return 2;
sync_map_state(mpp);
@@ -2631,8 +2623,6 @@ configure (struct vectors * vecs)
goto fail;
}
- dm_lib_release();
-
if (should_exit())
goto fail;
@@ -3115,7 +3105,6 @@ child (__attribute__((unused)) void *param)
if (poll_dmevents)
cleanup_dmevent_waiter();
- dm_lib_release();
dm_lib_exit();
/* We're done here */
--
2.17.2

506
0023-libmultipath-devmapper-refactor-libdm-version-determ.patch Normal file
View File

@ -0,0 +1,506 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 23:12:15 +0200
Subject: [PATCH] libmultipath: devmapper: refactor libdm version determination
As one step towards bundling all possibly racy libdm init calls into a single
function, split the code for determining and checking versions of
libdm and kernel components. Provide a generic helper
libmp_get_version() that makes sure the versions are "lazily" initialized.
External callers may use dm_prereq(), like before.
Minor API change: dm_prereq() does not nullify the argument any more
if an error is encountered.
Remove the conf->version field, which isn't needed any more after this
change. This makes it necessary to fixup the hwtable test. Also, it
represents an incompatible ABI change as offsets in "struct config" are
changed, and two symbols removed. Bump the ABI major version to 2.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.h | 1 -
libmultipath/devmapper.c | 162 ++++++++++++++++++++----------
libmultipath/devmapper.h | 10 +-
libmultipath/libmultipath.version | 5 +-
libmultipath/propsel.c | 10 +-
multipathd/dmevents.c | 2 +-
multipathd/main.c | 1 -
tests/Makefile | 2 +-
tests/hwtable.c | 3 -
tests/test-lib.c | 13 +++
10 files changed, 141 insertions(+), 68 deletions(-)
diff --git a/libmultipath/config.h b/libmultipath/config.h
index 290aea58..7af19844 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -192,7 +192,6 @@ struct config {
int find_multipaths_timeout;
int marginal_pathgroups;
int skip_delegate;
- unsigned int version[3];
unsigned int sequence_nr;
char * multipath_dir;
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 0bc1d16e..3e36129b 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -26,6 +26,7 @@
#include "sysfs.h"
#include "config.h"
#include "wwids.h"
+#include "version.h"
#include "log_pthread.h"
#include <sys/types.h>
@@ -34,7 +35,13 @@
#define MAX_WAIT 5
#define LOOPS_PER_SEC 5
+#define INVALID_VERSION ~0U
+static unsigned int dm_library_version[3] = { INVALID_VERSION, };
+static unsigned int dm_kernel_version[3] = { INVALID_VERSION, };
+static unsigned int dm_mpath_target_version[3] = { INVALID_VERSION, };
+
static pthread_once_t dm_initialized = PTHREAD_ONCE_INIT;
+static pthread_once_t versions_initialized = PTHREAD_ONCE_INIT;
static int dm_conf_verbosity;
@@ -102,7 +109,7 @@ dm_write_log (int level, const char *file, int line, const char *f, ...)
return;
}
-void dm_init(int v)
+static void dm_init(int v)
{
/*
* This maps libdm's standard loglevel _LOG_WARN (= 4), which is rather
@@ -112,61 +119,68 @@ void dm_init(int v)
dm_log_init(&dm_write_log);
}
+static void init_dm_library_version(void)
+{
+ char version[64];
+ unsigned int v[3];
+
+ dm_get_library_version(version, sizeof(version));
+ if (sscanf(version, "%u.%u.%u ", &v[0], &v[1], &v[2]) != 3) {
+ condlog(0, "invalid libdevmapper version %s", version);
+ return;
+ }
+ memcpy(dm_library_version, v, sizeof(dm_library_version));
+ condlog(3, "libdevmapper version %u.%.2u.%.2u",
+ dm_library_version[0], dm_library_version[1],
+ dm_library_version[2]);
+}
+
static int
dm_lib_prereq (void)
{
- char version[64];
- int v[3];
+
#if defined(LIBDM_API_HOLD_CONTROL)
- int minv[3] = {1, 2, 111};
+ unsigned int minv[3] = {1, 2, 111};
#elif defined(LIBDM_API_GET_ERRNO)
- int minv[3] = {1, 2, 99};
+ unsigned int minv[3] = {1, 2, 99};
#elif defined(LIBDM_API_DEFERRED)
- int minv[3] = {1, 2, 89};
+ unsigned int minv[3] = {1, 2, 89};
#elif defined(DM_SUBSYSTEM_UDEV_FLAG0)
- int minv[3] = {1, 2, 82};
+ unsigned int minv[3] = {1, 2, 82};
#elif defined(LIBDM_API_COOKIE)
- int minv[3] = {1, 2, 38};
+ unsigned int minv[3] = {1, 2, 38};
#else
- int minv[3] = {1, 2, 8};
+ unsigned int minv[3] = {1, 2, 8};
#endif
- dm_get_library_version(version, sizeof(version));
- condlog(3, "libdevmapper version %s", version);
- if (sscanf(version, "%d.%d.%d ", &v[0], &v[1], &v[2]) != 3) {
- condlog(0, "invalid libdevmapper version %s", version);
- return 1;
- }
-
- if VERSION_GE(v, minv)
+ if (VERSION_GE(dm_library_version, minv))
return 0;
- condlog(0, "libdevmapper version must be >= %d.%.2d.%.2d",
+ condlog(0, "libdevmapper version must be >= %u.%.2u.%.2u",
minv[0], minv[1], minv[2]);
return 1;
}
-int
-dm_drv_version(unsigned int *v)
+static void init_dm_drv_version(void)
{
char buff[64];
-
- v[0] = 0;
- v[1] = 0;
- v[2] = 0;
+ unsigned int v[3];
if (!dm_driver_version(buff, sizeof(buff))) {
condlog(0, "cannot get kernel dm version");
- return 1;
+ return;
}
if (sscanf(buff, "%u.%u.%u ", &v[0], &v[1], &v[2]) != 3) {
condlog(0, "invalid kernel dm version '%s'", buff);
- return 1;
+ return;
}
- return 0;
+ memcpy(dm_kernel_version, v, sizeof(dm_library_version));
+ condlog(3, "kernel device mapper v%u.%u.%u",
+ dm_kernel_version[0],
+ dm_kernel_version[1],
+ dm_kernel_version[2]);
}
-int
-dm_tgt_version (unsigned int * version, char * str)
+static int dm_tgt_version (unsigned int *version, char *str)
{
int r = 2;
struct dm_task *dmt;
@@ -174,10 +188,11 @@ dm_tgt_version (unsigned int * version, char * str)
struct dm_versions *last_target;
unsigned int *v;
- version[0] = 0;
- version[1] = 0;
- version[2] = 0;
-
+ /*
+ * We have to call dm_task_create() and not libmp_dm_task_create()
+ * here to avoid a recursive invocation of
+ * pthread_once(&dm_initialized), which would cause a deadlock.
+ */
if (!(dmt = dm_task_create(DM_DEVICE_LIST_VERSIONS)))
return 1;
@@ -213,26 +228,25 @@ out:
return r;
}
-static int
-dm_tgt_prereq (unsigned int *ver)
+static void init_dm_mpath_version(void)
{
- unsigned int minv[3] = {1, 0, 3};
- unsigned int version[3] = {0, 0, 0};
- unsigned int * v = version;
-
- if (dm_tgt_version(v, TGT_MPATH)) {
- /* in doubt return not capable */
- return 1;
- }
+ if (!dm_tgt_version(dm_mpath_target_version, TGT_MPATH))
+ condlog(3, "DM multipath kernel driver v%u.%u.%u",
+ dm_mpath_target_version[0],
+ dm_mpath_target_version[1],
+ dm_mpath_target_version[2]);
+}
- /* test request based multipath capability */
- condlog(3, "DM multipath kernel driver v%u.%u.%u",
- v[0], v[1], v[2]);
+static int dm_tgt_prereq (unsigned int *ver)
+{
+ unsigned int minv[3] = {1, 0, 3};
- if (VERSION_GE(v, minv)) {
- ver[0] = v[0];
- ver[1] = v[1];
- ver[2] = v[2];
+ if (VERSION_GE(dm_mpath_target_version, minv)) {
+ if (ver) {
+ ver[0] = dm_mpath_target_version[0];
+ ver[1] = dm_mpath_target_version[1];
+ ver[2] = dm_mpath_target_version[2];
+ }
return 0;
}
@@ -241,13 +255,60 @@ dm_tgt_prereq (unsigned int *ver)
return 1;
}
+static void _init_versions(void)
+{
+ dlog(logsink, 3, VERSION_STRING);
+ init_dm_library_version();
+ init_dm_drv_version();
+ init_dm_mpath_version();
+}
+
+static int init_versions(void) {
+ pthread_once(&versions_initialized, _init_versions);
+ return (dm_library_version[0] == INVALID_VERSION ||
+ dm_kernel_version[0] == INVALID_VERSION ||
+ dm_mpath_target_version[0] == INVALID_VERSION);
+}
+
int dm_prereq(unsigned int *v)
{
+ if (init_versions())
+ return 1;
if (dm_lib_prereq())
return 1;
return dm_tgt_prereq(v);
}
+int libmp_get_version(int which, unsigned int version[3])
+{
+ unsigned int *src_version;
+
+ init_versions();
+ switch (which) {
+ case DM_LIBRARY_VERSION:
+ src_version = dm_library_version;
+ break;
+ case DM_KERNEL_VERSION:
+ src_version = dm_kernel_version;
+ break;
+ case DM_MPATH_TARGET_VERSION:
+ src_version = dm_mpath_target_version;
+ break;
+ case MULTIPATH_VERSION:
+ version[0] = (VERSION_CODE >> 16) & 0xff;
+ version[1] = (VERSION_CODE >> 8) & 0xff;
+ version[2] = VERSION_CODE & 0xff;
+ return 0;
+ default:
+ condlog(0, "%s: invalid value for 'which'", __func__);
+ return 1;
+ }
+ if (src_version[0] == INVALID_VERSION)
+ return 1;
+ memcpy(version, src_version, 3 * sizeof(*version));
+ return 0;
+}
+
static int libmp_dm_udev_sync = 0;
void libmp_udev_set_sync_support(int on)
@@ -265,7 +326,6 @@ static void libmp_dm_init(void)
exit(1);
conf = get_multipath_config();
verbosity = conf->verbosity;
- memcpy(conf->version, version, sizeof(version));
put_multipath_config(conf);
dm_init(verbosity);
#ifdef LIBDM_API_HOLD_CONTROL
diff --git a/libmultipath/devmapper.h b/libmultipath/devmapper.h
index f469c98a..a0bcd137 100644
--- a/libmultipath/devmapper.h
+++ b/libmultipath/devmapper.h
@@ -33,13 +33,10 @@ enum {
DMP_NOT_FOUND,
};
-void dm_init(int verbosity);
int dm_prereq(unsigned int *v);
void skip_libmp_dm_init(void);
void libmp_udev_set_sync_support(int on);
struct dm_task *libmp_dm_task_create(int task);
-int dm_drv_version (unsigned int * version);
-int dm_tgt_version (unsigned int * version, char * str);
int dm_simplecmd_flush (int, const char *, uint16_t);
int dm_simplecmd_noflush (int, const char *, uint16_t);
int dm_addmap_create (struct multipath *mpp, char *params);
@@ -89,6 +86,13 @@ struct multipath *dm_get_multipath(const char *name);
#include <errno.h>
#define dm_task_get_errno(x) errno
#endif
+enum {
+ DM_LIBRARY_VERSION,
+ DM_KERNEL_VERSION,
+ DM_MPATH_TARGET_VERSION,
+ MULTIPATH_VERSION
+};
+int libmp_get_version(int which, unsigned int version[3]);
#define dm_log_error(lvl, cmd, dmt) \
condlog(lvl, "%s: libdm task=%d error: %s", __func__, \
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index a6bf8218..ab5bb0ad 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -31,7 +31,7 @@
* The new version inherits the previous ones.
*/
-LIBMULTIPATH_1.0.0 {
+LIBMULTIPATH_2.0.0 {
global:
/* symbols referenced by multipath and multipathd */
add_foreign;
@@ -65,7 +65,6 @@ global:
disassemble_status;
dlog;
dm_cancel_deferred_remove;
- dm_drv_version;
dm_enablegroup;
dm_fail_path;
_dm_flush_map;
@@ -87,7 +86,6 @@ global:
dm_reinstate_path;
dm_simplecmd_noflush;
dm_switchgroup;
- dm_tgt_version;
domap;
ensure_directories_exist;
extract_hwe_from_path;
@@ -128,6 +126,7 @@ global:
is_path_valid;
is_quote;
libmp_dm_task_create;
+ libmp_get_version;
libmp_udev_set_sync_support;
load_config;
log_thread_reset;
diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
index 40201344..3f2c2cfa 100644
--- a/libmultipath/propsel.c
+++ b/libmultipath/propsel.c
@@ -735,9 +735,10 @@ out:
int select_minio(struct config *conf, struct multipath *mp)
{
- unsigned int minv_dmrq[3] = {1, 1, 0};
+ unsigned int minv_dmrq[3] = {1, 1, 0}, version[3];
- if (VERSION_GE(conf->version, minv_dmrq))
+ if (!libmp_get_version(DM_MPATH_TARGET_VERSION, version)
+ && VERSION_GE(version, minv_dmrq))
return select_minio_rq(conf, mp);
else
return select_minio_bio(conf, mp);
@@ -820,9 +821,10 @@ out:
int select_retain_hwhandler(struct config *conf, struct multipath *mp)
{
const char *origin;
- unsigned int minv_dm_retain[3] = {1, 5, 0};
+ unsigned int minv_dm_retain[3] = {1, 5, 0}, version[3];
- if (!VERSION_GE(conf->version, minv_dm_retain)) {
+ if (!libmp_get_version(DM_MPATH_TARGET_VERSION, version) &&
+ !VERSION_GE(version, minv_dm_retain)) {
mp->retain_hwhandler = RETAIN_HWHANDLER_OFF;
origin = "(setting: WARNING, requires kernel dm-mpath version >= 1.5.0)";
goto out;
diff --git a/multipathd/dmevents.c b/multipathd/dmevents.c
index 5f2d210d..fc97c8a2 100644
--- a/multipathd/dmevents.c
+++ b/multipathd/dmevents.c
@@ -60,7 +60,7 @@ int dmevent_poll_supported(void)
{
unsigned int v[3];
- if (dm_drv_version(v))
+ if (libmp_get_version(DM_KERNEL_VERSION, v))
return 0;
if (VERSION_GE(v, DM_VERSION_FOR_ARM_POLL))
diff --git a/multipathd/main.c b/multipathd/main.c
index 5cc34357..00b66ba4 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -2709,7 +2709,6 @@ reconfigure (struct vectors * vecs)
/* Re-read any timezone changes */
tzset();
- dm_tgt_version(conf->version, TGT_MPATH);
if (verbosity)
conf->verbosity = verbosity;
if (bindings_read_only)
diff --git a/tests/Makefile b/tests/Makefile
index 9658c9fd..78777bec 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -43,7 +43,7 @@ endif
dmevents-test_LIBDEPS = -lpthread -ldevmapper -lurcu
hwtable-test_TESTDEPS := test-lib.o
hwtable-test_OBJDEPS := ../libmultipath/discovery.o ../libmultipath/blacklist.o \
- ../libmultipath/structs.o
+ ../libmultipath/structs.o ../libmultipath/propsel.o
hwtable-test_LIBDEPS := -ludev -lpthread -ldl
blacklist-test_TESTDEPS := test-log.o
blacklist-test_OBJDEPS := ../libmultipath/blacklist.o
diff --git a/tests/hwtable.c b/tests/hwtable.c
index 12660da2..57f832b7 100644
--- a/tests/hwtable.c
+++ b/tests/hwtable.c
@@ -30,8 +30,6 @@
#define N_CONF_FILES 2
static const char tmplate[] = "/tmp/hwtable-XXXXXX";
-/* pretend new dm, use minio_rq */
-static const unsigned int dm_tgt_version[3] = { 1, 1, 1 };
struct key_value {
const char *key;
@@ -360,7 +358,6 @@ static void write_device(FILE *ff, int nkv, const struct key_value *kv)
assert_ptr_not_equal(__cf, NULL); \
assert_ptr_not_equal(__cf->hwtable, NULL); \
__cf->verbosity = VERBOSITY; \
- memcpy(&__cf->version, dm_tgt_version, sizeof(__cf->version)); \
__cf; })
#define FREE_CONFIG(conf) do { \
diff --git a/tests/test-lib.c b/tests/test-lib.c
index b7c09cc2..e7663f9a 100644
--- a/tests/test-lib.c
+++ b/tests/test-lib.c
@@ -56,6 +56,15 @@ int __wrap_execute_program(char *path, char *value, int len)
return 0;
}
+int __wrap_libmp_get_version(int which, unsigned int version[3])
+{
+ unsigned int *vers = mock_ptr_type(unsigned int *);
+
+ condlog(4, "%s: %d", __func__, which);
+ memcpy(version, vers, 3 * sizeof(unsigned int));
+ return 0;
+}
+
struct udev_list_entry
*__wrap_udev_device_get_properties_list_entry(struct udev_device *ud)
{
@@ -339,6 +348,8 @@ struct multipath *__mock_multipath(struct vectors *vecs, struct path *pp)
struct multipath *mp;
struct config *conf;
struct mocked_path mop;
+ /* pretend new dm, use minio_rq, */
+ static const unsigned int fake_dm_tgt_version[3] = { 1, 1, 1 };
mocked_path_from_path(&mop, pp);
/* pathinfo() call in adopt_paths */
@@ -351,7 +362,9 @@ struct multipath *__mock_multipath(struct vectors *vecs, struct path *pp)
conf = get_multipath_config();
select_pgpolicy(conf, mp);
select_no_path_retry(conf, mp);
+ will_return(__wrap_libmp_get_version, fake_dm_tgt_version);
select_retain_hwhandler(conf, mp);
+ will_return(__wrap_libmp_get_version, fake_dm_tgt_version);
select_minio(conf, mp);
put_multipath_config(conf);
--
2.17.2

89
0023-libmultipath-make-libmp_dm_init-optional.patch
View File

@ -1,89 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 19 May 2020 12:08:40 -0500
Subject: [PATCH] libmultipath: make libmp_dm_init optional
Move dm_initialized out of libmp_dm_task_create(), and add
a function skip_libmp_dm_init() so that users of libmultipath can skip
initializing device-mapper. This is needed for other programs that
use libmultipath (or a library that depends on it) but want to control
how device-mapper is set up.
Also make dm_prereq a global function.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/devmapper.c | 17 +++++++++++++----
libmultipath/devmapper.h | 3 ++-
2 files changed, 15 insertions(+), 5 deletions(-)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 13a1cf53..7ed494a1 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -33,6 +33,8 @@
#define MAX_WAIT 5
#define LOOPS_PER_SEC 5
+static pthread_once_t dm_initialized = PTHREAD_ONCE_INIT;
+
static int dm_conf_verbosity;
#ifdef LIBDM_API_DEFERRED
@@ -229,7 +231,7 @@ dm_tgt_prereq (unsigned int *ver)
return 1;
}
-static int dm_prereq(unsigned int *v)
+int dm_prereq(unsigned int *v)
{
if (dm_lib_prereq())
return 1;
@@ -243,7 +245,7 @@ void libmp_udev_set_sync_support(int on)
libmp_dm_udev_sync = !!on;
}
-void libmp_dm_init(void)
+static void libmp_dm_init(void)
{
struct config *conf;
int verbosity;
@@ -262,11 +264,18 @@ void libmp_dm_init(void)
dm_udev_set_sync_support(libmp_dm_udev_sync);
}
+static void _do_skip_libmp_dm_init(void)
+{
+}
+
+void skip_libmp_dm_init(void)
+{
+ pthread_once(&dm_initialized, _do_skip_libmp_dm_init);
+}
+
struct dm_task*
libmp_dm_task_create(int task)
{
- static pthread_once_t dm_initialized = PTHREAD_ONCE_INIT;
-
pthread_once(&dm_initialized, libmp_dm_init);
return dm_task_create(task);
}
diff --git a/libmultipath/devmapper.h b/libmultipath/devmapper.h
index 7557a86b..17fc9faf 100644
--- a/libmultipath/devmapper.h
+++ b/libmultipath/devmapper.h
@@ -28,7 +28,8 @@
#define UUID_PREFIX_LEN (sizeof(UUID_PREFIX) - 1)
void dm_init(int verbosity);
-void libmp_dm_init(void);
+int dm_prereq(unsigned int *v);
+void skip_libmp_dm_init(void);
void libmp_udev_set_sync_support(int on);
struct dm_task *libmp_dm_task_create(int task);
int dm_drv_version (unsigned int * version);
--
2.17.2

108
0024-libmultipath-make-sysfs_is_multipathed-able-to-retur.patch
View File

@ -1,108 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 19 May 2020 12:08:41 -0500
Subject: [PATCH] libmultipath: make sysfs_is_multipathed able to return wwid
sysfs_is_multipathed reads the wwid of the dm device holding a path to
check if its a multipath device. Add code to optinally set pp->wwid to
that wwid. This will be used by a future patch.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/sysfs.c | 24 +++++++++++++++++++-----
libmultipath/sysfs.h | 2 +-
multipath/main.c | 7 ++++---
3 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/libmultipath/sysfs.c b/libmultipath/sysfs.c
index 62ec2ed7..12a82d95 100644
--- a/libmultipath/sysfs.c
+++ b/libmultipath/sysfs.c
@@ -295,7 +295,7 @@ static int select_dm_devs(const struct dirent *di)
return fnmatch("dm-*", di->d_name, FNM_FILE_NAME) == 0;
}
-bool sysfs_is_multipathed(const struct path *pp)
+bool sysfs_is_multipathed(struct path *pp, bool set_wwid)
{
char pathbuf[PATH_MAX];
struct scandir_result sr;
@@ -325,7 +325,7 @@ bool sysfs_is_multipathed(const struct path *pp)
for (i = 0; i < r && !found; i++) {
long fd;
int nr;
- char uuid[6];
+ char uuid[WWID_SIZE + UUID_PREFIX_LEN];
if (safe_snprintf(pathbuf + n, sizeof(pathbuf) - n,
"/%s/dm/uuid", di[i]->d_name))
@@ -339,12 +339,26 @@ bool sysfs_is_multipathed(const struct path *pp)
pthread_cleanup_push(close_fd, (void *)fd);
nr = read(fd, uuid, sizeof(uuid));
- if (nr == sizeof(uuid) && !memcmp(uuid, "mpath-", sizeof(uuid)))
+ if (nr > (int)UUID_PREFIX_LEN &&
+ !memcmp(uuid, UUID_PREFIX, UUID_PREFIX_LEN))
found = true;
else if (nr < 0) {
- condlog(1, "%s: error reading from %s: %s",
- __func__, pathbuf, strerror(errno));
+ condlog(1, "%s: error reading from %s: %m",
+ __func__, pathbuf);
}
+ if (found && set_wwid) {
+ nr -= UUID_PREFIX_LEN;
+ memcpy(pp->wwid, uuid + UUID_PREFIX_LEN, nr);
+ if (nr == WWID_SIZE) {
+ condlog(4, "%s: overflow while reading from %s",
+ __func__, pathbuf);
+ pp->wwid[0] = '\0';
+ } else {
+ pp->wwid[nr] = '\0';
+ strchop(pp->wwid);
+ }
+ }
+
pthread_cleanup_pop(1);
}
pthread_cleanup_pop(1);
diff --git a/libmultipath/sysfs.h b/libmultipath/sysfs.h
index 9ae30b39..72b39ab2 100644
--- a/libmultipath/sysfs.h
+++ b/libmultipath/sysfs.h
@@ -14,5 +14,5 @@ ssize_t sysfs_bin_attr_get_value(struct udev_device *dev, const char *attr_name,
unsigned char * value, size_t value_len);
int sysfs_get_size (struct path *pp, unsigned long long * size);
int sysfs_check_holders(char * check_devt, char * new_devt);
-bool sysfs_is_multipathed(const struct path *pp);
+bool sysfs_is_multipathed(struct path *pp, bool set_wwid);
#endif
diff --git a/multipath/main.c b/multipath/main.c
index cf9d2a28..545ead87 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -638,7 +638,8 @@ configure (struct config *conf, enum mpath_cmds cmd,
* Shortcut for find_multipaths smart:
* Quick check if path is already multipathed.
*/
- if (sysfs_is_multipathed(VECTOR_SLOT(pathvec, 0))) {
+ if (sysfs_is_multipathed(VECTOR_SLOT(pathvec, 0),
+ false)) {
r = RTVL_YES;
goto print_valid;
}
@@ -747,8 +748,8 @@ configure (struct config *conf, enum mpath_cmds cmd,
/*
* Check if we raced with multipathd
*/
- r = sysfs_is_multipathed(VECTOR_SLOT(pathvec, 0)) ?
- RTVL_YES : RTVL_NO;
+ r = sysfs_is_multipathed(VECTOR_SLOT(pathvec, 0),
+ false) ? RTVL_YES : RTVL_NO;
}
goto print_valid;
}
--
2.17.2

437
0024-libmultipath-protect-racy-libdevmapper-calls-with-a-.patch Normal file
View File

@ -0,0 +1,437 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 15 Sep 2020 23:38:48 +0200
Subject: [PATCH] libmultipath: protect racy libdevmapper calls with a mutex
dm_udev_wait() and dm_task_run() may access global / static state
in libdevmapper. They need to be protected by a lock in in our
multithreaded library.
The modified call sequence requires fixing the dmevents test:
devmapper.c must be added to dmevents-test_OBJDEPS to catch calls
to dm_task_run(). Also, the call to dmevent_poll_supported() in
setup() will cause init_versions() to be called, which requires
bypassing the wrappers in the test setup phase.
Cc: lixiaokeng@huawei.com
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/devmapper.c | 73 +++++++++++++++++++------------
libmultipath/devmapper.h | 2 +
libmultipath/libmultipath.version | 6 +++
libmultipath/util.c | 5 +++
libmultipath/util.h | 1 +
multipathd/dmevents.c | 2 +-
multipathd/waiter.c | 2 +-
tests/Makefile | 1 +
tests/dmevents.c | 12 +++++
9 files changed, 75 insertions(+), 29 deletions(-)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 3e36129b..4eb6f539 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -42,6 +42,7 @@ static unsigned int dm_mpath_target_version[3] = { INVALID_VERSION, };
static pthread_once_t dm_initialized = PTHREAD_ONCE_INIT;
static pthread_once_t versions_initialized = PTHREAD_ONCE_INIT;
+static pthread_mutex_t libmp_dm_lock = PTHREAD_MUTEX_INITIALIZER;
static int dm_conf_verbosity;
@@ -59,16 +60,34 @@ static inline int dm_task_set_cookie(struct dm_task *dmt, uint32_t *c, int a)
return 1;
}
-void dm_udev_wait(unsigned int c)
+static void libmp_udev_wait(unsigned int c)
{
}
-void dm_udev_set_sync_support(int c)
+static void dm_udev_set_sync_support(int c)
{
}
-
+#else
+static void libmp_udev_wait(unsigned int c)
+{
+ pthread_mutex_lock(&libmp_dm_lock);
+ pthread_cleanup_push(cleanup_mutex, &libmp_dm_lock);
+ dm_udev_wait(c);
+ pthread_cleanup_pop(1);
+}
#endif
+int libmp_dm_task_run(struct dm_task *dmt)
+{
+ int r;
+
+ pthread_mutex_lock(&libmp_dm_lock);
+ pthread_cleanup_push(cleanup_mutex, &libmp_dm_lock);
+ r = dm_task_run(dmt);
+ pthread_cleanup_pop(1);
+ return r;
+}
+
__attribute__((format(printf, 4, 5))) static void
dm_write_log (int level, const char *file, int line, const char *f, ...)
{
@@ -198,7 +217,7 @@ static int dm_tgt_version (unsigned int *version, char *str)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(2, DM_DEVICE_LIST_VERSIONS, dmt);
condlog(0, "Can not communicate with kernel DM");
goto out;
@@ -382,12 +401,12 @@ dm_simplecmd (int task, const char *name, int no_flush, int need_sync, uint16_t
DM_UDEV_DISABLE_LIBRARY_FALLBACK | udev_flags))
goto out;
- r = dm_task_run (dmt);
+ r = libmp_dm_task_run (dmt);
if (!r)
dm_log_error(2, task, dmt);
if (udev_wait_flag)
- dm_udev_wait(cookie);
+ libmp_udev_wait(cookie);
out:
dm_task_destroy (dmt);
return r;
@@ -474,12 +493,12 @@ dm_addmap (int task, const char *target, struct multipath *mpp,
!dm_task_set_cookie(dmt, &cookie, udev_flags))
goto freeout;
- r = dm_task_run (dmt);
+ r = libmp_dm_task_run (dmt);
if (!r)
dm_log_error(2, task, dmt);
if (task == DM_DEVICE_CREATE)
- dm_udev_wait(cookie);
+ libmp_udev_wait(cookie);
freeout:
if (prefixed_uuid)
FREE(prefixed_uuid);
@@ -589,7 +608,7 @@ do_get_info(const char *name, struct dm_info *info)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_INFO, dmt);
goto out;
}
@@ -630,7 +649,7 @@ int dm_get_map(const char *name, unsigned long long *size, char *outparams)
dm_task_no_open_count(dmt);
errno = 0;
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_TABLE, dmt);
if (dm_task_get_errno(dmt) == ENXIO)
r = DMP_NOT_FOUND;
@@ -672,7 +691,7 @@ dm_get_prefixed_uuid(const char *name, char *uuid, int uuid_len)
if (!dm_task_set_name (dmt, name))
goto uuidout;
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_INFO, dmt);
goto uuidout;
}
@@ -743,7 +762,7 @@ int dm_get_status(const char *name, char *outstatus)
dm_task_no_open_count(dmt);
errno = 0;
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_STATUS, dmt);
if (dm_task_get_errno(dmt) == ENXIO)
r = DMP_NOT_FOUND;
@@ -796,7 +815,7 @@ int dm_type(const char *name, char *type)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_TABLE, dmt);
goto out;
}
@@ -840,7 +859,7 @@ int dm_is_mpath(const char *name)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_TABLE, dmt);
goto out_task;
}
@@ -904,7 +923,7 @@ dm_map_present_by_uuid(const char *uuid)
if (!dm_task_set_uuid(dmt, prefixed_uuid))
goto out_task;
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_INFO, dmt);
goto out_task;
}
@@ -950,7 +969,7 @@ dm_get_opencount (const char * mapname)
if (!dm_task_set_name(dmt, mapname))
goto out;
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_INFO, dmt);
goto out;
}
@@ -1110,7 +1129,7 @@ int dm_flush_maps (int need_suspend, int retries)
dm_task_no_open_count(dmt);
- if (!dm_task_run (dmt)) {
+ if (!libmp_dm_task_run (dmt)) {
dm_log_error(3, DM_DEVICE_LIST, dmt);
goto out;
}
@@ -1156,7 +1175,7 @@ dm_message(const char * mapname, char * message)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(2, DM_DEVICE_TARGET_MSG, dmt);
goto out;
}
@@ -1276,7 +1295,7 @@ dm_get_maps (vector mp)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_LIST, dmt);
goto out;
}
@@ -1361,7 +1380,7 @@ dm_mapname(int major, int minor)
* daemon uev_trigger -> uev_add_map
*/
while (--loop) {
- r = dm_task_run(dmt);
+ r = libmp_dm_task_run(dmt);
if (r)
break;
@@ -1406,7 +1425,7 @@ do_foreach_partmaps (const char * mapname,
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_LIST, dmt);
goto out;
}
@@ -1641,11 +1660,11 @@ dm_rename (const char * old, char * new, char *delim, int skip_kpartx)
if (!dm_task_set_cookie(dmt, &cookie, udev_flags))
goto out;
- r = dm_task_run(dmt);
+ r = libmp_dm_task_run(dmt);
if (!r)
dm_log_error(2, DM_DEVICE_RENAME, dmt);
- dm_udev_wait(cookie);
+ libmp_udev_wait(cookie);
out:
dm_task_destroy(dmt);
@@ -1687,7 +1706,7 @@ int dm_reassign_table(const char *name, char *old, char *new)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_TABLE, dmt);
goto out;
}
@@ -1720,7 +1739,7 @@ int dm_reassign_table(const char *name, char *old, char *new)
if (modified) {
dm_task_no_open_count(reload_dmt);
- if (!dm_task_run(reload_dmt)) {
+ if (!libmp_dm_task_run(reload_dmt)) {
dm_log_error(3, DM_DEVICE_RELOAD, reload_dmt);
condlog(3, "%s: failed to reassign targets", name);
goto out_reload;
@@ -1767,7 +1786,7 @@ int dm_reassign(const char *mapname)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_DEPS, dmt);
goto out;
}
@@ -1835,7 +1854,7 @@ int dm_setgeometry(struct multipath *mpp)
goto out;
}
- r = dm_task_run(dmt);
+ r = libmp_dm_task_run(dmt);
if (!r)
dm_log_error(3, DM_DEVICE_SET_GEOMETRY, dmt);
out:
diff --git a/libmultipath/devmapper.h b/libmultipath/devmapper.h
index a0bcd137..fa6b3c53 100644
--- a/libmultipath/devmapper.h
+++ b/libmultipath/devmapper.h
@@ -93,6 +93,8 @@ enum {
MULTIPATH_VERSION
};
int libmp_get_version(int which, unsigned int version[3]);
+struct dm_task;
+int libmp_dm_task_run(struct dm_task *dmt);
#define dm_log_error(lvl, cmd, dmt) \
condlog(lvl, "%s: libdm task=%d error: %s", __func__, \
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index ab5bb0ad..97acdbb2 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -245,3 +245,9 @@ global:
local:
*;
};
+
+LIBMULTIPATH_2.1.0 {
+global:
+ libmp_dm_task_run;
+ cleanup_mutex;
+} LIBMULTIPATH_2.0.0;
diff --git a/libmultipath/util.c b/libmultipath/util.c
index 1f977792..0e37f3ff 100644
--- a/libmultipath/util.c
+++ b/libmultipath/util.c
@@ -424,6 +424,11 @@ void cleanup_free_ptr(void *arg)
free(*p);
}
+void cleanup_mutex(void *arg)
+{
+ pthread_mutex_unlock(arg);
+}
+
struct bitfield *alloc_bitfield(unsigned int maxbit)
{
unsigned int n;
diff --git a/libmultipath/util.h b/libmultipath/util.h
index ac19473e..e9b48f9f 100644
--- a/libmultipath/util.h
+++ b/libmultipath/util.h
@@ -49,6 +49,7 @@ int should_exit(void);
void close_fd(void *arg);
void cleanup_free_ptr(void *arg);
+void cleanup_mutex(void *arg);
struct scandir_result {
struct dirent **di;
diff --git a/multipathd/dmevents.c b/multipathd/dmevents.c
index fc97c8a2..b561cbfd 100644
--- a/multipathd/dmevents.c
+++ b/multipathd/dmevents.c
@@ -156,7 +156,7 @@ static int dm_get_events(void)
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt)) {
+ if (!libmp_dm_task_run(dmt)) {
dm_log_error(3, DM_DEVICE_LIST, dmt);
goto fail;
}
diff --git a/multipathd/waiter.c b/multipathd/waiter.c
index 3bc69807..bbe6c2a1 100644
--- a/multipathd/waiter.c
+++ b/multipathd/waiter.c
@@ -118,7 +118,7 @@ static int waiteventloop (struct event_thread *waiter)
pthread_sigmask(SIG_UNBLOCK, &set, &oldset);
pthread_testcancel();
- r = dm_task_run(waiter->dmt);
+ r = libmp_dm_task_run(waiter->dmt);
if (!r)
dm_log_error(2, DM_DEVICE_WAITEVENT, waiter->dmt);
pthread_testcancel();
diff --git a/tests/Makefile b/tests/Makefile
index 78777bec..908407ea 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -40,6 +40,7 @@ endif
# linker input file).
# XYZ-test_LIBDEPS: Additional libs to link for this test
+dmevents-test_OBJDEPS = ../libmultipath/devmapper.o
dmevents-test_LIBDEPS = -lpthread -ldevmapper -lurcu
hwtable-test_TESTDEPS := test-lib.o
hwtable-test_OBJDEPS := ../libmultipath/discovery.o ../libmultipath/blacklist.o \
diff --git a/tests/dmevents.c b/tests/dmevents.c
index bee117ac..b7c5122b 100644
--- a/tests/dmevents.c
+++ b/tests/dmevents.c
@@ -179,6 +179,8 @@ struct dm_names *build_dm_names(void)
return names;
}
+static bool setup_done;
+
static int setup(void **state)
{
if (dmevent_poll_supported()) {
@@ -186,6 +188,7 @@ static int setup(void **state)
*state = &data;
} else
*state = NULL;
+ setup_done = true;
return 0;
}
@@ -262,14 +265,20 @@ struct dm_task *__wrap_libmp_dm_task_create(int task)
return mock_type(struct dm_task *);
}
+int __real_dm_task_no_open_count(struct dm_task *dmt);
int __wrap_dm_task_no_open_count(struct dm_task *dmt)
{
+ if (!setup_done)
+ return __real_dm_task_no_open_count(dmt);
assert_ptr_equal((struct test_data *)dmt, &data);
return mock_type(int);
}
+int __real_dm_task_run(struct dm_task *dmt);
int __wrap_dm_task_run(struct dm_task *dmt)
{
+ if (!setup_done)
+ return __real_dm_task_run(dmt);
assert_ptr_equal((struct test_data *)dmt, &data);
return mock_type(int);
}
@@ -291,8 +300,11 @@ struct dm_names * __wrap_dm_task_get_names(struct dm_task *dmt)
return data.names;
}
+void __real_dm_task_destroy(struct dm_task *dmt);
void __wrap_dm_task_destroy(struct dm_task *dmt)
{
+ if (!setup_done)
+ return __real_dm_task_destroy(dmt);
assert_ptr_equal((struct test_data *)dmt, &data);
if (data.names) {
--
2.17.2

29
0074-libmultipath-constify-file-argument-in-config-parser.patch → 0025-libmultipath-constify-file-argument-in-config-parser.patch
View File

@ -1,10 +1,9 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:07 +0200
Date: Wed, 16 Sep 2020 12:02:01 +0200
Subject: [PATCH] libmultipath: constify file argument in config parser
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.c | 3 +--
@ -14,10 +13,10 @@ Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
4 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index a253a936..1818f8b9 100644
index df0f8f45..5c91a09d 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -718,8 +718,7 @@ static void set_max_checkint_from_watchdog(struct config *conf)
@@ -719,8 +719,7 @@ static void set_max_checkint_from_watchdog(struct config *conf)
}
#endif
@ -28,10 +27,10 @@ index a253a936..1818f8b9 100644
struct config *conf = alloc_config();
diff --git a/libmultipath/config.h b/libmultipath/config.h
index c7a73fba..78375f2f 100644
index 7af19844..ace403b8 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -253,7 +253,7 @@ void free_mptable (vector mptable);
@@ -251,7 +251,7 @@ void free_mptable (vector mptable);
int store_hwe (vector hwtable, struct hwentry *);
@ -41,10 +40,10 @@ index c7a73fba..78375f2f 100644
void free_config (struct config * conf);
extern struct config *get_multipath_config(void);
diff --git a/libmultipath/parser.c b/libmultipath/parser.c
index a7285a35..d150e7b2 100644
index ed6d5d6d..163ffbc9 100644
--- a/libmultipath/parser.c
+++ b/libmultipath/parser.c
@@ -400,7 +400,7 @@ set_regex_value(vector strvec)
@@ -390,7 +390,7 @@ oom:
/* non-recursive configuration stream handler */
static int kw_level = 0;
@ -53,16 +52,16 @@ index a7285a35..d150e7b2 100644
{
char *tmp;
int i;
@@ -444,7 +444,7 @@ is_sublevel_keyword(char *str)
@@ -434,7 +434,7 @@ is_sublevel_keyword(char *str)
}
int
-validate_config_strvec(vector strvec, char *file)
+validate_config_strvec(vector strvec, const char *file)
{
char *str;
char *str = NULL;
int i;
@@ -507,7 +507,8 @@ validate_config_strvec(vector strvec, char *file)
@@ -499,7 +499,8 @@ validate_config_strvec(vector strvec, char *file)
}
static int
@ -72,7 +71,7 @@ index a7285a35..d150e7b2 100644
{
int i;
int r = 0, t;
@@ -592,7 +593,7 @@ out:
@@ -584,7 +585,7 @@ out:
/* Data initialization */
int
@ -82,13 +81,13 @@ index a7285a35..d150e7b2 100644
int r;
FILE *stream;
diff --git a/libmultipath/parser.h b/libmultipath/parser.h
index b7917052..b385fb9e 100644
index 62906e98..06666ccf 100644
--- a/libmultipath/parser.h
+++ b/libmultipath/parser.h
@@ -78,7 +78,7 @@ extern void free_keywords(vector keywords);
@@ -77,7 +77,7 @@ extern void dump_keywords(vector keydump, int level);
extern void free_keywords(vector keywords);
extern vector alloc_strvec(char *string);
extern void *set_value(vector strvec);
extern void *set_regex_value(vector strvec);
-extern int process_file(struct config *conf, char *conf_file);
+extern int process_file(struct config *conf, const char *conf_file);
extern struct keyword * find_keyword(vector keywords, vector v, char * name);

777
0025-multipath-centralize-validation-code.patch
View File

@ -1,777 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 19 May 2020 12:08:42 -0500
Subject: [PATCH] multipath: centralize validation code
This code pulls the multipath path validation code out of configure(),
and puts it into its own function, check_path_valid(). This function
calls a new libmultipath function, is_path_valid() to check just path
requested. This seperation exists so that is_path_valid() can be reused
by future code. This code will give almost the same answer as the
existing code, with the exception that now, if a device is currently
multipathed, it will always be a valid multipath path.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/Makefile | 2 +-
libmultipath/devmapper.c | 45 ++++++
libmultipath/devmapper.h | 1 +
libmultipath/structs.h | 24 +---
libmultipath/valid.c | 118 ++++++++++++++++
libmultipath/valid.h | 42 ++++++
libmultipath/wwids.c | 10 +-
multipath/main.c | 296 +++++++++++++++++----------------------
8 files changed, 343 insertions(+), 195 deletions(-)
create mode 100644 libmultipath/valid.c
create mode 100644 libmultipath/valid.h
diff --git a/libmultipath/Makefile b/libmultipath/Makefile
index f19b7ad2..e5dac5ea 100644
--- a/libmultipath/Makefile
+++ b/libmultipath/Makefile
@@ -48,7 +48,7 @@ OBJS = memory.o parser.o vector.o devmapper.o callout.o \
log.o configure.o structs_vec.o sysfs.o prio.o checkers.o \
lock.o file.o wwids.o prioritizers/alua_rtpg.o prkey.o \
io_err_stat.o dm-generic.o generic.o foreign.o nvme-lib.o \
- libsg.o
+ libsg.o valid.o
all: $(LIBS)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 7ed494a1..27d52398 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -770,6 +770,51 @@ out:
return r;
}
+/*
+ * Return
+ * 1 : map with uuid exists
+ * 0 : map with uuid doesn't exist
+ * -1 : error
+ */
+int
+dm_map_present_by_uuid(const char *uuid)
+{
+ struct dm_task *dmt;
+ struct dm_info info;
+ char prefixed_uuid[WWID_SIZE + UUID_PREFIX_LEN];
+ int r = -1;
+
+ if (!uuid || uuid[0] == '\0')
+ return 0;
+
+ if (safe_sprintf(prefixed_uuid, UUID_PREFIX "%s", uuid))
+ goto out;
+
+ if (!(dmt = dm_task_create(DM_DEVICE_INFO)))
+ goto out;
+
+ dm_task_no_open_count(dmt);
+
+ if (!dm_task_set_uuid(dmt, prefixed_uuid))
+ goto out_task;
+
+ if (!dm_task_run(dmt))
+ goto out_task;
+
+ if (!dm_task_get_info(dmt, &info))
+ goto out_task;
+
+ r = !!info.exists;
+
+out_task:
+ dm_task_destroy(dmt);
+out:
+ if (r < 0)
+ condlog(3, "%s: dm command failed in %s: %s", uuid,
+ __FUNCTION__, strerror(errno));
+ return r;
+}
+
static int
dm_dev_t (const char * mapname, char * dev_t, int len)
{
diff --git a/libmultipath/devmapper.h b/libmultipath/devmapper.h
index 17fc9faf..5ed7edc5 100644
--- a/libmultipath/devmapper.h
+++ b/libmultipath/devmapper.h
@@ -39,6 +39,7 @@ int dm_simplecmd_noflush (int, const char *, uint16_t);
int dm_addmap_create (struct multipath *mpp, char *params);
int dm_addmap_reload (struct multipath *mpp, char *params, int flush);
int dm_map_present (const char *);
+int dm_map_present_by_uuid(const char *uuid);
int dm_get_map(const char *, unsigned long long *, char *);
int dm_get_status(const char *, char *);
int dm_type(const char *, char *);
diff --git a/libmultipath/structs.h b/libmultipath/structs.h
index 9bd39eb1..d69bc2e9 100644
--- a/libmultipath/structs.h
+++ b/libmultipath/structs.h
@@ -101,29 +101,13 @@ enum yes_no_undef_states {
YNU_YES,
};
-#define _FIND_MULTIPATHS_F (1 << 1)
-#define _FIND_MULTIPATHS_I (1 << 2)
-#define _FIND_MULTIPATHS_N (1 << 3)
-/*
- * _FIND_MULTIPATHS_F must have the same value as YNU_YES.
- * Generate a compile time error if that isn't the case.
- */
-extern char ___error1___[-(_FIND_MULTIPATHS_F != YNU_YES)];
-
-#define find_multipaths_on(conf) \
- (!!((conf)->find_multipaths & _FIND_MULTIPATHS_F))
-#define ignore_wwids_on(conf) \
- (!!((conf)->find_multipaths & _FIND_MULTIPATHS_I))
-#define ignore_new_devs_on(conf) \
- (!!((conf)->find_multipaths & _FIND_MULTIPATHS_N))
-
enum find_multipaths_states {
FIND_MULTIPATHS_UNDEF = YNU_UNDEF,
FIND_MULTIPATHS_OFF = YNU_NO,
- FIND_MULTIPATHS_ON = _FIND_MULTIPATHS_F,
- FIND_MULTIPATHS_GREEDY = _FIND_MULTIPATHS_I,
- FIND_MULTIPATHS_SMART = _FIND_MULTIPATHS_F|_FIND_MULTIPATHS_I,
- FIND_MULTIPATHS_STRICT = _FIND_MULTIPATHS_F|_FIND_MULTIPATHS_N,
+ FIND_MULTIPATHS_ON = YNU_YES,
+ FIND_MULTIPATHS_GREEDY,
+ FIND_MULTIPATHS_SMART,
+ FIND_MULTIPATHS_STRICT,
__FIND_MULTIPATHS_LAST,
};
diff --git a/libmultipath/valid.c b/libmultipath/valid.c
new file mode 100644
index 00000000..456b1f6e
--- /dev/null
+++ b/libmultipath/valid.c
@@ -0,0 +1,118 @@
+/*
+ Copyright (c) 2020 Benjamin Marzinski, IBM
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#include <stddef.h>
+#include <errno.h>
+#include <libudev.h>
+
+#include "vector.h"
+#include "config.h"
+#include "debug.h"
+#include "util.h"
+#include "devmapper.h"
+#include "discovery.h"
+#include "wwids.h"
+#include "sysfs.h"
+#include "blacklist.h"
+#include "mpath_cmd.h"
+#include "valid.h"
+
+int
+is_path_valid(const char *name, struct config *conf, struct path *pp,
+ bool check_multipathd)
+{
+ int r;
+ int fd;
+
+ if (!pp || !name || !conf)
+ return PATH_IS_ERROR;
+
+ if (conf->find_multipaths <= FIND_MULTIPATHS_UNDEF ||
+ conf->find_multipaths >= __FIND_MULTIPATHS_LAST)
+ return PATH_IS_ERROR;
+
+ if (safe_sprintf(pp->dev, "%s", name))
+ return PATH_IS_ERROR;
+
+ if (sysfs_is_multipathed(pp, true)) {
+ if (pp->wwid[0] == '\0')
+ return PATH_IS_ERROR;
+ return PATH_IS_VALID_NO_CHECK;
+ }
+
+ /*
+ * "multipath -u" may be run before the daemon is started. In this
+ * case, systemd might own the socket but might delay multipathd
+ * startup until some other unit (udev settle!) has finished
+ * starting. With many LUNs, the listen backlog may be exceeded, which
+ * would cause connect() to block. This causes udev workers calling
+ * "multipath -u" to hang, and thus creates a deadlock, until "udev
+ * settle" times out. To avoid this, call connect() in non-blocking
+ * mode here, and take EAGAIN as indication for a filled-up systemd
+ * backlog.
+ */
+
+ if (check_multipathd) {
+ fd = __mpath_connect(1);
+ if (fd < 0) {
+ if (errno != EAGAIN && !systemd_service_enabled(name)) {
+ condlog(3, "multipathd not running or enabled");
+ return PATH_IS_NOT_VALID;
+ }
+ } else
+ mpath_disconnect(fd);
+ }
+
+ pp->udev = udev_device_new_from_subsystem_sysname(udev, "block", name);
+ if (!pp->udev)
+ return PATH_IS_ERROR;
+
+ r = pathinfo(pp, conf, DI_SYSFS | DI_WWID | DI_BLACKLIST);
+ if (r == PATHINFO_SKIPPED)
+ return PATH_IS_NOT_VALID;
+ else if (r)
+ return PATH_IS_ERROR;
+
+ if (pp->wwid[0] == '\0')
+ return PATH_IS_NOT_VALID;
+
+ if (pp->udev && pp->uid_attribute &&
+ filter_property(conf, pp->udev, 3, pp->uid_attribute) > 0)
+ return PATH_IS_NOT_VALID;
+
+ r = is_failed_wwid(pp->wwid);
+ if (r != WWID_IS_NOT_FAILED) {
+ if (r == WWID_IS_FAILED)
+ return PATH_IS_NOT_VALID;
+ return PATH_IS_ERROR;
+ }
+
+ if (conf->find_multipaths == FIND_MULTIPATHS_GREEDY)
+ return PATH_IS_VALID;
+
+ if (check_wwids_file(pp->wwid, 0) == 0)
+ return PATH_IS_VALID_NO_CHECK;
+
+ if (dm_map_present_by_uuid(pp->wwid) == 1)
+ return PATH_IS_VALID;
+
+ /* all these act like FIND_MULTIPATHS_STRICT for finding if a
+ * path is valid */
+ if (conf->find_multipaths != FIND_MULTIPATHS_SMART)
+ return PATH_IS_NOT_VALID;
+
+ return PATH_IS_MAYBE_VALID;
+}
diff --git a/libmultipath/valid.h b/libmultipath/valid.h
new file mode 100644
index 00000000..ce1c7cbf
--- /dev/null
+++ b/libmultipath/valid.h
@@ -0,0 +1,42 @@
+/*
+ Copyright (c) 2020 Benjamin Marzinski, IBM
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#ifndef _VALID_H
+#define _VALID_H
+
+/*
+ * PATH_IS_VALID_NO_CHECK is returned when multipath should claim
+ * the path, regardless of whether is has been released to systemd
+ * already.
+ * PATH_IS_VALID is returned by is_path_valid, when the path is
+ * valid only if it hasn't been released to systemd already.
+ * PATH_IS_MAYBE_VALID is returned when the the path would be valid
+ * if other paths with the same wwid existed. It is up to the caller
+ * to check for these other paths.
+ */
+enum is_path_valid_result {
+ PATH_IS_ERROR = -1,
+ PATH_IS_NOT_VALID,
+ PATH_IS_VALID,
+ PATH_IS_VALID_NO_CHECK,
+ PATH_IS_MAYBE_VALID,
+ PATH_MAX_VALID_RESULT, /* only for bounds checking */
+};
+
+int is_path_valid(const char *name, struct config *conf, struct path *pp,
+ bool check_multipathd);
+
+#endif /* _VALID_D */
diff --git a/libmultipath/wwids.c b/libmultipath/wwids.c
index 28a2150d..637cb0ab 100644
--- a/libmultipath/wwids.c
+++ b/libmultipath/wwids.c
@@ -289,19 +289,19 @@ out:
int
should_multipath(struct path *pp1, vector pathvec, vector mpvec)
{
- int i, ignore_new_devs, find_multipaths;
+ int i, find_multipaths;
struct path *pp2;
struct config *conf;
conf = get_multipath_config();
- ignore_new_devs = ignore_new_devs_on(conf);
- find_multipaths = find_multipaths_on(conf);
+ find_multipaths = conf->find_multipaths;
put_multipath_config(conf);
- if (!find_multipaths && !ignore_new_devs)
+ if (find_multipaths == FIND_MULTIPATHS_OFF ||
+ find_multipaths == FIND_MULTIPATHS_GREEDY)
return 1;
condlog(4, "checking if %s should be multipathed", pp1->dev);
- if (!ignore_new_devs) {
+ if (find_multipaths != FIND_MULTIPATHS_STRICT) {
char tmp_wwid[WWID_SIZE];
struct multipath *mp = find_mp_by_wwid(mpvec, pp1->wwid);
diff --git a/multipath/main.c b/multipath/main.c
index 545ead87..953fab27 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -63,21 +63,18 @@
#include "propsel.h"
#include "time-util.h"
#include "file.h"
+#include "valid.h"
int logsink;
struct udev *udev;
struct config *multipath_conf;
/*
- * Return values of configure(), print_cmd_valid(), and main().
- * RTVL_{YES,NO} are synonyms for RTVL_{OK,FAIL} for the CMD_VALID_PATH case.
+ * Return values of configure(), check_path_valid(), and main().
*/
enum {
RTVL_OK = 0,
- RTVL_YES = RTVL_OK,
RTVL_FAIL = 1,
- RTVL_NO = RTVL_FAIL,
- RTVL_MAYBE, /* only used internally, never returned */
RTVL_RETRY, /* returned by configure(), not by main() */
};
@@ -269,9 +266,6 @@ get_dm_mpvec (enum mpath_cmds cmd, vector curmp, vector pathvec, char * refwwid)
continue;
}
- if (cmd == CMD_VALID_PATH)
- continue;
-
dm_get_map(mpp->alias, &mpp->size, params);
condlog(3, "params = %s", params);
dm_get_status(mpp->alias, status);
@@ -491,10 +485,11 @@ static int print_cmd_valid(int k, const vector pathvec,
struct timespec until;
struct path *pp;
- if (k != RTVL_YES && k != RTVL_NO && k != RTVL_MAYBE)
- return RTVL_NO;
+ if (k != PATH_IS_VALID && k != PATH_IS_NOT_VALID &&
+ k != PATH_IS_MAYBE_VALID)
+ return PATH_IS_NOT_VALID;
- if (k == RTVL_MAYBE) {
+ if (k == PATH_IS_MAYBE_VALID) {
/*
* Caller ensures that pathvec[0] is the path to
* examine.
@@ -504,7 +499,7 @@ static int print_cmd_valid(int k, const vector pathvec,
wait = find_multipaths_check_timeout(
pp, pp->find_multipaths_timeout, &until);
if (wait != FIND_MULTIPATHS_WAITING)
- k = RTVL_NO;
+ k = PATH_IS_NOT_VALID;
} else if (pathvec != NULL && (pp = VECTOR_SLOT(pathvec, 0)))
wait = find_multipaths_check_timeout(pp, 0, &until);
if (wait == FIND_MULTIPATHS_WAITING)
@@ -513,9 +508,9 @@ static int print_cmd_valid(int k, const vector pathvec,
else if (wait == FIND_MULTIPATHS_WAIT_DONE)
printf("FIND_MULTIPATHS_WAIT_UNTIL=\"0\"\n");
printf("DM_MULTIPATH_DEVICE_PATH=\"%d\"\n",
- k == RTVL_MAYBE ? 2 : k == RTVL_YES ? 1 : 0);
+ k == PATH_IS_MAYBE_VALID ? 2 : k == PATH_IS_VALID ? 1 : 0);
/* Never return RTVL_MAYBE */
- return k == RTVL_NO ? RTVL_NO : RTVL_YES;
+ return k == PATH_IS_NOT_VALID ? PATH_IS_NOT_VALID : PATH_IS_VALID;
}
/*
@@ -548,7 +543,6 @@ configure (struct config *conf, enum mpath_cmds cmd,
int di_flag = 0;
char * refwwid = NULL;
char * dev = NULL;
- bool released = released_to_systemd();
/*
* allocate core vectors to store paths and multipaths
@@ -573,7 +567,7 @@ configure (struct config *conf, enum mpath_cmds cmd,
cmd != CMD_REMOVE_WWID &&
(filter_devnode(conf->blist_devnode,
conf->elist_devnode, dev) > 0)) {
- goto print_valid;
+ goto out;
}
/*
@@ -581,14 +575,10 @@ configure (struct config *conf, enum mpath_cmds cmd,
* failing the translation is fatal (by policy)
*/
if (devpath) {
- int failed = get_refwwid(cmd, devpath, dev_type,
- pathvec, &refwwid);
+ get_refwwid(cmd, devpath, dev_type, pathvec, &refwwid);
if (!refwwid) {
condlog(4, "%s: failed to get wwid", devpath);
- if (failed == 2 && cmd == CMD_VALID_PATH)
- goto print_valid;
- else
- condlog(3, "scope is null");
+ condlog(3, "scope is null");
goto out;
}
if (cmd == CMD_REMOVE_WWID) {
@@ -614,53 +604,6 @@ configure (struct config *conf, enum mpath_cmds cmd,
goto out;
}
condlog(3, "scope limited to %s", refwwid);
- /* If you are ignoring the wwids file and find_multipaths is
- * set, you need to actually check if there are two available
- * paths to determine if this path should be multipathed. To
- * do this, we put off the check until after discovering all
- * the paths.
- * Paths listed in the wwids file are always considered valid.
- */
- if (cmd == CMD_VALID_PATH) {
- if (is_failed_wwid(refwwid) == WWID_IS_FAILED) {
- r = RTVL_NO;
- goto print_valid;
- }
- if ((!find_multipaths_on(conf) &&
- ignore_wwids_on(conf)) ||
- check_wwids_file(refwwid, 0) == 0)
- r = RTVL_YES;
- if (!ignore_wwids_on(conf))
- goto print_valid;
- /* At this point, either r==0 or find_multipaths_on. */
-
- /*
- * Shortcut for find_multipaths smart:
- * Quick check if path is already multipathed.
- */
- if (sysfs_is_multipathed(VECTOR_SLOT(pathvec, 0),
- false)) {
- r = RTVL_YES;
- goto print_valid;
- }
-
- /*
- * DM_MULTIPATH_DEVICE_PATH=="0" means that we have
- * been called for this device already, and have
- * released it to systemd. Unless the device is now
- * already multipathed (see above), we can't try to
- * grab it, because setting SYSTEMD_READY=0 would
- * cause file systems to be unmounted.
- * Leave DM_MULTIPATH_DEVICE_PATH="0".
- */
- if (released) {
- r = RTVL_NO;
- goto print_valid;
- }
- if (r == RTVL_YES)
- goto print_valid;
- /* find_multipaths_on: Fall through to path detection */
- }
}
/*
@@ -701,59 +644,6 @@ configure (struct config *conf, enum mpath_cmds cmd,
goto out;
}
- if (cmd == CMD_VALID_PATH) {
- struct path *pp;
- int fd;
-
- /* This only happens if find_multipaths and
- * ignore_wwids is set, and the path is not in WWIDs
- * file, not currently multipathed, and has
- * never been released to systemd.
- * If there is currently a multipath device matching
- * the refwwid, or there is more than one path matching
- * the refwwid, then the path is valid */
- if (VECTOR_SIZE(curmp) != 0) {
- r = RTVL_YES;
- goto print_valid;
- } else if (VECTOR_SIZE(pathvec) > 1)
- r = RTVL_YES;
- else
- r = RTVL_MAYBE;
-
- /*
- * If opening the path with O_EXCL fails, the path
- * is in use (e.g. mounted during initramfs processing).
- * We know that it's not used by dm-multipath.
- * We may not set SYSTEMD_READY=0 on such devices, it
- * might cause systemd to umount the device.
- * Use O_RDONLY, because udevd would trigger another
- * uevent for close-after-write.
- *
- * The O_EXCL check is potentially dangerous, because it may
- * race with other tasks trying to access the device. Therefore
- * this code is only executed if the path hasn't been released
- * to systemd earlier (see above).
- *
- * get_refwwid() above stores the path we examine in slot 0.
- */
- pp = VECTOR_SLOT(pathvec, 0);
- fd = open(udev_device_get_devnode(pp->udev),
- O_RDONLY|O_EXCL);
- if (fd >= 0)
- close(fd);
- else {
- condlog(3, "%s: path %s is in use: %s",
- __func__, pp->dev,
- strerror(errno));
- /*
- * Check if we raced with multipathd
- */
- r = sysfs_is_multipathed(VECTOR_SLOT(pathvec, 0),
- false) ? RTVL_YES : RTVL_NO;
- }
- goto print_valid;
- }
-
if (cmd != CMD_CREATE && cmd != CMD_DRY_RUN) {
r = RTVL_OK;
goto out;
@@ -766,10 +656,6 @@ configure (struct config *conf, enum mpath_cmds cmd,
conf->force_reload, cmd);
r = rc == CP_RETRY ? RTVL_RETRY : rc == CP_OK ? RTVL_OK : RTVL_FAIL;
-print_valid:
- if (cmd == CMD_VALID_PATH)
- r = print_cmd_valid(r, pathvec, conf);
-
out:
if (refwwid)
FREE(refwwid);
@@ -780,6 +666,112 @@ out:
return r;
}
+static int
+check_path_valid(const char *name, struct config *conf, bool is_uevent)
+{
+ int fd, r = PATH_IS_ERROR;
+ struct path *pp = NULL;
+ vector pathvec = NULL;
+
+ pp = alloc_path();
+ if (!pp)
+ return RTVL_FAIL;
+
+ r = is_path_valid(name, conf, pp, is_uevent);
+ if (r <= PATH_IS_ERROR || r >= PATH_MAX_VALID_RESULT)
+ goto fail;
+
+ /* set path values if is_path_valid() didn't */
+ if (!pp->udev)
+ pp->udev = udev_device_new_from_subsystem_sysname(udev, "block",
+ name);
+ if (!pp->udev)
+ goto fail;
+
+ if (!strlen(pp->dev_t)) {
+ dev_t devt = udev_device_get_devnum(pp->udev);
+ if (major(devt) == 0 && minor(devt) == 0)
+ goto fail;
+ snprintf(pp->dev_t, BLK_DEV_SIZE, "%d:%d", major(devt),
+ minor(devt));
+ }
+
+ pathvec = vector_alloc();
+ if (!pathvec)
+ goto fail;
+
+ if (store_path(pathvec, pp) != 0) {
+ free_path(pp);
+ goto fail;
+ }
+
+ if ((r == PATH_IS_VALID || r == PATH_IS_MAYBE_VALID) &&
+ released_to_systemd())
+ r = PATH_IS_NOT_VALID;
+
+ /* This state is only used to skip the released_to_systemd() check */
+ if (r == PATH_IS_VALID_NO_CHECK)
+ r = PATH_IS_VALID;
+
+ if (r != PATH_IS_MAYBE_VALID)
+ goto out;
+
+ /*
+ * If opening the path with O_EXCL fails, the path
+ * is in use (e.g. mounted during initramfs processing).
+ * We know that it's not used by dm-multipath.
+ * We may not set SYSTEMD_READY=0 on such devices, it
+ * might cause systemd to umount the device.
+ * Use O_RDONLY, because udevd would trigger another
+ * uevent for close-after-write.
+ *
+ * The O_EXCL check is potentially dangerous, because it may
+ * race with other tasks trying to access the device. Therefore
+ * this code is only executed if the path hasn't been released
+ * to systemd earlier (see above).
+ */
+ fd = open(udev_device_get_devnode(pp->udev), O_RDONLY|O_EXCL);
+ if (fd >= 0)
+ close(fd);
+ else {
+ condlog(3, "%s: path %s is in use: %m", __func__, pp->dev);
+ /* Check if we raced with multipathd */
+ if (sysfs_is_multipathed(pp, false))
+ r = PATH_IS_VALID;
+ else
+ r = PATH_IS_NOT_VALID;
+ goto out;
+ }
+
+ /* For find_multipaths = SMART, if there is more than one path
+ * matching the refwwid, then the path is valid */
+ if (path_discovery(pathvec, DI_SYSFS | DI_WWID) < 0)
+ goto fail;
+ filter_pathvec(pathvec, pp->wwid);
+ if (VECTOR_SIZE(pathvec) > 1)
+ r = PATH_IS_VALID;
+ else
+ r = PATH_IS_MAYBE_VALID;
+
+out:
+ r = print_cmd_valid(r, pathvec, conf);
+ free_pathvec(pathvec, FREE_PATHS);
+ /*
+ * multipath -u must exit with status 0, otherwise udev won't
+ * import its output.
+ */
+ if (!is_uevent && r == PATH_IS_NOT_VALID)
+ return RTVL_FAIL;
+ return RTVL_OK;
+
+fail:
+ if (pathvec)
+ free_pathvec(pathvec, FREE_PATHS);
+ else
+ free_path(pp);
+ return RTVL_FAIL;
+}
+
static int
get_dev_type(char *dev) {
struct stat buf;
@@ -861,32 +853,6 @@ out:
return r;
}
-static int test_multipathd_socket(void)
-{
- int fd;
- /*
- * "multipath -u" may be run before the daemon is started. In this
- * case, systemd might own the socket but might delay multipathd
- * startup until some other unit (udev settle!) has finished
- * starting. With many LUNs, the listen backlog may be exceeded, which
- * would cause connect() to block. This causes udev workers calling
- * "multipath -u" to hang, and thus creates a deadlock, until "udev
- * settle" times out. To avoid this, call connect() in non-blocking
- * mode here, and take EAGAIN as indication for a filled-up systemd
- * backlog.
- */
-
- fd = __mpath_connect(1);
- if (fd == -1) {
- if (errno == EAGAIN)
- condlog(3, "daemon backlog exceeded");
- else
- return 0;
- } else
- close(fd);
- return 1;
-}
-
int
main (int argc, char *argv[])
{
@@ -970,7 +936,11 @@ main (int argc, char *argv[])
conf->force_reload = FORCE_RELOAD_YES;
break;
case 'i':
- conf->find_multipaths |= _FIND_MULTIPATHS_I;
+ if (conf->find_multipaths == FIND_MULTIPATHS_ON ||
+ conf->find_multipaths == FIND_MULTIPATHS_STRICT)
+ conf->find_multipaths = FIND_MULTIPATHS_SMART;
+ else if (conf->find_multipaths == FIND_MULTIPATHS_OFF)
+ conf->find_multipaths = FIND_MULTIPATHS_GREEDY;
break;
case 't':
r = dump_config(conf, NULL, NULL) ? RTVL_FAIL : RTVL_OK;
@@ -1064,15 +1034,10 @@ main (int argc, char *argv[])
condlog(0, "the -c option requires a path to check");
goto out;
}
- if (cmd == CMD_VALID_PATH &&
- dev_type == DEV_UEVENT) {
- if (!test_multipathd_socket()) {
- condlog(3, "%s: daemon is not running", dev);
- if (!systemd_service_enabled(dev)) {
- r = print_cmd_valid(RTVL_NO, NULL, conf);
- goto out;
- }
- }
+ if (cmd == CMD_VALID_PATH) {
+ char * name = convert_dev(dev, (dev_type == DEV_DEVNODE));
+ r = check_path_valid(name, conf, dev_type == DEV_UEVENT);
+ goto out;
}
if (cmd == CMD_REMOVE_WWID && !dev) {
@@ -1136,13 +1101,6 @@ out:
cleanup_prio();
cleanup_checkers();
- /*
- * multipath -u must exit with status 0, otherwise udev won't
- * import its output.
- */
- if (cmd == CMD_VALID_PATH && dev_type == DEV_UEVENT && r == RTVL_NO)
- r = RTVL_OK;
-
if (dev_type == DEV_UEVENT)
closelog();
--
2.17.2

530
0026-Unit-tests-for-is_path_valid.patch
View File

@ -1,530 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 19 May 2020 12:08:43 -0500
Subject: [PATCH] Unit tests for is_path_valid()
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
tests/Makefile | 4 +-
tests/valid.c | 486 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 489 insertions(+), 1 deletion(-)
create mode 100644 tests/valid.c
diff --git a/tests/Makefile b/tests/Makefile
index 1b8706a7..125553b8 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -13,7 +13,7 @@ CFLAGS += $(BIN_CFLAGS) -I$(multipathdir) -I$(mpathcmddir) \
LIBDEPS += -L$(multipathdir) -L$(mpathcmddir) -lmultipath -lmpathcmd -lcmocka
TESTS := uevent parser util dmevents hwtable blacklist unaligned vpd pgpolicy \
- alias directio
+ alias directio valid
.SILENT: $(TESTS:%=%.o)
.PRECIOUS: $(TESTS:%=%-test)
@@ -50,6 +50,8 @@ vpd-test_OBJDEPS := ../libmultipath/discovery.o
vpd-test_LIBDEPS := -ludev -lpthread -ldl
alias-test_TESTDEPS := test-log.o
alias-test_LIBDEPS := -lpthread -ldl
+valid-test_OBJDEPS := ../libmultipath/valid.o
+valid-test_LIBDEPS := -ludev -lpthread -ldl
ifneq ($(DIO_TEST_DEV),)
directio-test_LIBDEPS := -laio
endif
diff --git a/tests/valid.c b/tests/valid.c
new file mode 100644
index 00000000..693c72c5
--- /dev/null
+++ b/tests/valid.c
@@ -0,0 +1,486 @@
+/*
+ * Copyright (c) 2020 Benjamin Marzinski, Redhat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#define _GNU_SOURCE
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <cmocka.h>
+#include "globals.c"
+#include "util.h"
+#include "discovery.h"
+#include "wwids.h"
+#include "blacklist.h"
+#include "valid.h"
+
+int test_fd;
+struct udev_device {
+ int unused;
+} test_udev;
+
+bool __wrap_sysfs_is_multipathed(struct path *pp, bool set_wwid)
+{
+ bool is_multipathed = mock_type(bool);
+ assert_non_null(pp);
+ assert_int_not_equal(strlen(pp->dev), 0);
+ if (is_multipathed && set_wwid)
+ strlcpy(pp->wwid, mock_ptr_type(char *), WWID_SIZE);
+ return is_multipathed;
+}
+
+int __wrap___mpath_connect(int nonblocking)
+{
+ bool connected = mock_type(bool);
+ assert_int_equal(nonblocking, 1);
+ if (connected)
+ return test_fd;
+ errno = mock_type(int);
+ return -1;
+}
+
+int __wrap_systemd_service_enabled(const char *dev)
+{
+ return (int)mock_type(bool);
+}
+
+/* There's no point in checking the return value here */
+int __wrap_mpath_disconnect(int fd)
+{
+ assert_int_equal(fd, test_fd);
+ return 0;
+}
+
+struct udev_device *__wrap_udev_device_new_from_subsystem_sysname(struct udev *udev, const char *subsystem, const char *sysname)
+{
+ bool passed = mock_type(bool);
+ assert_string_equal(sysname, mock_ptr_type(char *));
+ if (passed)
+ return &test_udev;
+ return NULL;
+}
+
+int __wrap_pathinfo(struct path *pp, struct config *conf, int mask)
+{
+ int ret = mock_type(int);
+ assert_string_equal(pp->dev, mock_ptr_type(char *));
+ assert_int_equal(mask, DI_SYSFS | DI_WWID | DI_BLACKLIST);
+ if (ret == PATHINFO_OK) {
+ pp->uid_attribute = "ID_TEST";
+ strlcpy(pp->wwid, mock_ptr_type(char *), WWID_SIZE);
+ } else
+ memset(pp->wwid, 0, WWID_SIZE);
+ return ret;
+}
+
+int __wrap_filter_property(struct config *conf, struct udev_device *udev,
+ int lvl, const char *uid_attribute)
+{
+ int ret = mock_type(int);
+ assert_string_equal(uid_attribute, "ID_TEST");
+ return ret;
+}
+
+int __wrap_is_failed_wwid(const char *wwid)
+{
+ int ret = mock_type(int);
+ assert_string_equal(wwid, mock_ptr_type(char *));
+ return ret;
+}
+
+int __wrap_check_wwids_file(char *wwid, int write_wwid)
+{
+ bool passed = mock_type(bool);
+ assert_int_equal(write_wwid, 0);
+ assert_string_equal(wwid, mock_ptr_type(char *));
+ if (passed)
+ return 0;
+ else
+ return -1;
+}
+
+int __wrap_dm_map_present_by_uuid(const char *uuid)
+{
+ int ret = mock_type(int);
+ assert_string_equal(uuid, mock_ptr_type(char *));
+ return ret;
+}
+
+enum {
+ STAGE_IS_MULTIPATHED,
+ STAGE_CHECK_MULTIPATHD,
+ STAGE_GET_UDEV_DEVICE,
+ STAGE_PATHINFO,
+ STAGE_FILTER_PROPERTY,
+ STAGE_IS_FAILED,
+ STAGE_CHECK_WWIDS,
+ STAGE_UUID_PRESENT,
+};
+
+enum {
+ CHECK_MPATHD_RUNNING,
+ CHECK_MPATHD_EAGAIN,
+ CHECK_MPATHD_ENABLED,
+ CHECK_MPATHD_SKIP,
+};
+
+/* setup the test to continue past the given stage in is_path_valid() */
+static void setup_passing(char *name, char *wwid, unsigned int check_multipathd,
+ unsigned int stage)
+{
+ will_return(__wrap_sysfs_is_multipathed, false);
+ if (stage == STAGE_IS_MULTIPATHED)
+ return;
+ if (check_multipathd == CHECK_MPATHD_RUNNING)
+ will_return(__wrap___mpath_connect, true);
+ else if (check_multipathd == CHECK_MPATHD_EAGAIN) {
+ will_return(__wrap___mpath_connect, false);
+ will_return(__wrap___mpath_connect, EAGAIN);
+ } else if (check_multipathd == CHECK_MPATHD_ENABLED) {
+ will_return(__wrap___mpath_connect, false);
+ will_return(__wrap___mpath_connect, ECONNREFUSED);
+ will_return(__wrap_systemd_service_enabled, true);
+ }
+ /* nothing for CHECK_MPATHD_SKIP */
+ if (stage == STAGE_CHECK_MULTIPATHD)
+ return;
+ will_return(__wrap_udev_device_new_from_subsystem_sysname, true);
+ will_return(__wrap_udev_device_new_from_subsystem_sysname,
+ name);
+ if (stage == STAGE_GET_UDEV_DEVICE)
+ return;
+ will_return(__wrap_pathinfo, PATHINFO_OK);
+ will_return(__wrap_pathinfo, name);
+ will_return(__wrap_pathinfo, wwid);
+ if (stage == STAGE_PATHINFO)
+ return;
+ will_return(__wrap_filter_property, MATCH_PROPERTY_BLIST_EXCEPT);
+ if (stage == STAGE_FILTER_PROPERTY)
+ return;
+ will_return(__wrap_is_failed_wwid, WWID_IS_NOT_FAILED);
+ will_return(__wrap_is_failed_wwid, wwid);
+ if (stage == STAGE_IS_FAILED)
+ return;
+ will_return(__wrap_check_wwids_file, false);
+ will_return(__wrap_check_wwids_file, wwid);
+ if (stage == STAGE_CHECK_WWIDS)
+ return;
+ will_return(__wrap_dm_map_present_by_uuid, 0);
+ will_return(__wrap_dm_map_present_by_uuid, wwid);
+}
+
+static void test_bad_arguments(void **state)
+{
+ struct path pp;
+ char too_long[FILE_NAME_SIZE + 1];
+
+ memset(&pp, 0, sizeof(pp));
+ /* test NULL pointers */
+ assert_int_equal(is_path_valid("test", &conf, NULL, true),
+ PATH_IS_ERROR);
+ assert_int_equal(is_path_valid("test", NULL, &pp, true),
+ PATH_IS_ERROR);
+ assert_int_equal(is_path_valid(NULL, &conf, &pp, true),
+ PATH_IS_ERROR);
+ /* test undefined find_multipaths */
+ conf.find_multipaths = FIND_MULTIPATHS_UNDEF;
+ assert_int_equal(is_path_valid("test", &conf, &pp, true),
+ PATH_IS_ERROR);
+ /* test name too long */
+ memset(too_long, 'x', sizeof(too_long));
+ too_long[sizeof(too_long) - 1] = '\0';
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ assert_int_equal(is_path_valid(too_long, &conf, &pp, true),
+ PATH_IS_ERROR);
+}
+
+static void test_sysfs_is_multipathed(void **state)
+{
+ struct path pp;
+ char *name = "test";
+ char *wwid = "test_wwid";
+
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ /* test for already existing multiapthed device */
+ will_return(__wrap_sysfs_is_multipathed, true);
+ will_return(__wrap_sysfs_is_multipathed, wwid);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_VALID_NO_CHECK);
+ assert_string_equal(pp.dev, name);
+ assert_string_equal(pp.wwid, wwid);
+ /* test for wwid device with empty wwid */
+ will_return(__wrap_sysfs_is_multipathed, true);
+ will_return(__wrap_sysfs_is_multipathed, "");
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_ERROR);
+}
+
+static void test_check_multipathd(void **state)
+{
+ struct path pp;
+ char *name = "test";
+
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ /* test failed check to see if multipathd is active */
+ will_return(__wrap_sysfs_is_multipathed, false);
+ will_return(__wrap___mpath_connect, false);
+ will_return(__wrap___mpath_connect, ECONNREFUSED);
+ will_return(__wrap_systemd_service_enabled, false);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_NOT_VALID);
+ assert_string_equal(pp.dev, name);
+ /* test pass because service is enabled. fail getting udev */
+ memset(&pp, 0, sizeof(pp));
+ setup_passing(name, NULL, CHECK_MPATHD_ENABLED, STAGE_CHECK_MULTIPATHD);
+ will_return(__wrap_udev_device_new_from_subsystem_sysname, false);
+ will_return(__wrap_udev_device_new_from_subsystem_sysname,
+ name);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_ERROR);
+ assert_string_equal(pp.dev, name);
+ /* test pass because connect returned EAGAIN. fail getting udev */
+ setup_passing(name, NULL, CHECK_MPATHD_EAGAIN, STAGE_CHECK_MULTIPATHD);
+ will_return(__wrap_udev_device_new_from_subsystem_sysname, false);
+ will_return(__wrap_udev_device_new_from_subsystem_sysname,
+ name);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_ERROR);
+ /* test pass because connect succeeded. fail getting udev */
+ memset(&pp, 0, sizeof(pp));
+ setup_passing(name, NULL, CHECK_MPATHD_RUNNING, STAGE_CHECK_MULTIPATHD);
+ will_return(__wrap_udev_device_new_from_subsystem_sysname, false);
+ will_return(__wrap_udev_device_new_from_subsystem_sysname,
+ name);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_ERROR);
+ assert_string_equal(pp.dev, name);
+}
+
+static void test_pathinfo(void **state)
+{
+ struct path pp;
+ char *name = "test";
+
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ /* Test pathinfo blacklisting device */
+ setup_passing(name, NULL, CHECK_MPATHD_SKIP, STAGE_GET_UDEV_DEVICE);
+ will_return(__wrap_pathinfo, PATHINFO_SKIPPED);
+ will_return(__wrap_pathinfo, name);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+ assert_string_equal(pp.dev, name);
+ assert_ptr_equal(pp.udev, &test_udev);
+ /* Test pathinfo failing */
+ memset(&pp, 0, sizeof(pp));
+ setup_passing(name, NULL, CHECK_MPATHD_SKIP, STAGE_GET_UDEV_DEVICE);
+ will_return(__wrap_pathinfo, PATHINFO_FAILED);
+ will_return(__wrap_pathinfo, name);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_ERROR);
+ /* Test blank wwid */
+ memset(&pp, 0, sizeof(pp));
+ setup_passing(name, NULL, CHECK_MPATHD_SKIP, STAGE_GET_UDEV_DEVICE);
+ will_return(__wrap_pathinfo, PATHINFO_OK);
+ will_return(__wrap_pathinfo, name);
+ will_return(__wrap_pathinfo, "");
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+}
+
+static void test_filter_property(void **state)
+{
+ struct path pp;
+ char *name = "test";
+ char *wwid = "test-wwid";
+
+ /* test blacklist property */
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_PATHINFO);
+ will_return(__wrap_filter_property, MATCH_PROPERTY_BLIST);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+ assert_ptr_equal(pp.udev, &test_udev);
+ assert_string_equal(pp.wwid, wwid);
+ /* test missing property */
+ memset(&pp, 0, sizeof(pp));
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_PATHINFO);
+ will_return(__wrap_filter_property, MATCH_PROPERTY_BLIST_MISSING);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+ /* test MATCH_NOTHING fail on is_failed_wwid */
+ memset(&pp, 0, sizeof(pp));
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_PATHINFO);
+ will_return(__wrap_filter_property, MATCH_NOTHING);
+ will_return(__wrap_is_failed_wwid, WWID_IS_FAILED);
+ will_return(__wrap_is_failed_wwid, wwid);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+}
+
+static void test_is_failed_wwid(void **state)
+{
+ struct path pp;
+ char *name = "test";
+ char *wwid = "test-wwid";
+
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ /* Test wwid failed */
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_FILTER_PROPERTY);
+ will_return(__wrap_is_failed_wwid, WWID_IS_FAILED);
+ will_return(__wrap_is_failed_wwid, wwid);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+ assert_string_equal(pp.dev, name);
+ assert_ptr_equal(pp.udev, &test_udev);
+ assert_string_equal(pp.wwid, wwid);
+ /* test is_failed_wwid error */
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_FILTER_PROPERTY);
+ will_return(__wrap_is_failed_wwid, WWID_FAILED_ERROR);
+ will_return(__wrap_is_failed_wwid, wwid);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_ERROR);
+}
+
+static void test_greedy(void **state)
+{
+ struct path pp;
+ char *name = "test";
+ char *wwid = "test-wwid";
+
+ /* test greedy success with checking multipathd */
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_GREEDY;
+ setup_passing(name, wwid, CHECK_MPATHD_RUNNING, STAGE_IS_FAILED);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_VALID);
+ assert_string_equal(pp.dev, name);
+ assert_ptr_equal(pp.udev, &test_udev);
+ assert_string_equal(pp.wwid, wwid);
+ /* test greedy success without checking multiapthd */
+ memset(&pp, 0, sizeof(pp));
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_IS_FAILED);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_VALID);
+}
+
+static void test_check_wwids(void **state)
+{
+ struct path pp;
+ char *name = "test";
+ char *wwid = "test-wwid";
+
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ setup_passing(name, wwid, CHECK_MPATHD_EAGAIN, STAGE_IS_FAILED);
+ will_return(__wrap_check_wwids_file, true);
+ will_return(__wrap_check_wwids_file, wwid);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_VALID_NO_CHECK);
+ assert_string_equal(pp.dev, name);
+ assert_ptr_equal(pp.udev, &test_udev);
+ assert_string_equal(pp.wwid, wwid);
+}
+
+static void test_check_uuid_present(void **state)
+{
+ struct path pp;
+ char *name = "test";
+ char *wwid = "test-wwid";
+
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ setup_passing(name, wwid, CHECK_MPATHD_ENABLED, STAGE_CHECK_WWIDS);
+ will_return(__wrap_dm_map_present_by_uuid, 1);
+ will_return(__wrap_dm_map_present_by_uuid, wwid);
+ assert_int_equal(is_path_valid(name, &conf, &pp, true),
+ PATH_IS_VALID);
+ assert_string_equal(pp.dev, name);
+ assert_ptr_equal(pp.udev, &test_udev);
+ assert_string_equal(pp.wwid, wwid);
+}
+
+
+static void test_find_multipaths(void **state)
+{
+ struct path pp;
+ char *name = "test";
+ char *wwid = "test-wwid";
+
+ /* test find_multipaths = FIND_MULTIPATHS_STRICT */
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_STRICT;
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_UUID_PRESENT);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+ assert_string_equal(pp.dev, name);
+ assert_ptr_equal(pp.udev, &test_udev);
+ assert_string_equal(pp.wwid, wwid);
+ /* test find_multipaths = FIND_MULTIPATHS_OFF */
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_OFF;
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_UUID_PRESENT);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+ /* test find_multipaths = FIND_MULTIPATHS_ON */
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_ON;
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_UUID_PRESENT);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_NOT_VALID);
+ /* test find_multipaths = FIND_MULTIPATHS_SMART */
+ memset(&pp, 0, sizeof(pp));
+ conf.find_multipaths = FIND_MULTIPATHS_SMART;
+ setup_passing(name, wwid, CHECK_MPATHD_SKIP, STAGE_UUID_PRESENT);
+ assert_int_equal(is_path_valid(name, &conf, &pp, false),
+ PATH_IS_MAYBE_VALID);
+ assert_string_equal(pp.dev, name);
+ assert_ptr_equal(pp.udev, &test_udev);
+ assert_string_equal(pp.wwid, wwid);
+}
+
+int test_valid(void)
+{
+ const struct CMUnitTest tests[] = {
+ cmocka_unit_test(test_bad_arguments),
+ cmocka_unit_test(test_sysfs_is_multipathed),
+ cmocka_unit_test(test_check_multipathd),
+ cmocka_unit_test(test_pathinfo),
+ cmocka_unit_test(test_filter_property),
+ cmocka_unit_test(test_is_failed_wwid),
+ cmocka_unit_test(test_greedy),
+ cmocka_unit_test(test_check_wwids),
+ cmocka_unit_test(test_check_uuid_present),
+ cmocka_unit_test(test_find_multipaths),
+ };
+ return cmocka_run_group_tests(tests, NULL, NULL);
+}
+
+int main(void)
+{
+ int ret = 0;
+ ret += test_valid();
+ return ret;
+}
--
2.17.2

50
0075-libmultipath-provide-defaults-for-get-put-_multipath.patch → 0026-libmultipath-provide-defaults-for-get-put-_multipath.patch
View File

@ -1,6 +1,6 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:08 +0200
Date: Wed, 16 Sep 2020 12:06:56 +0200
Subject: [PATCH] libmultipath: provide defaults for {get,put}_multipath_config
Add an implementation of get_multipath_config() and put_multipath_config()
@ -14,24 +14,28 @@ It must be initialized with init_config() rather than load_config(),
which always allocates a new struct for backward compatibility, and must
be teared down using uninit_config().
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.c | 72 +++++++++++++++++++++++++++++++++++++------
libmultipath/config.h | 21 +++++++++++--
2 files changed, 80 insertions(+), 13 deletions(-)
libmultipath/config.c | 75 ++++++++++++++++++++++++++-----
libmultipath/config.h | 21 +++++++--
libmultipath/libmultipath.version | 10 +++++
3 files changed, 93 insertions(+), 13 deletions(-)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index 1818f8b9..422e923d 100644
index 5c91a09d..01b77dfe 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -28,6 +28,23 @@
@@ -27,6 +27,26 @@
#include "mpath_cmd.h"
#include "propsel.h"
#include "version.h"
+static struct config __internal_config;
+struct config *libmp_get_multipath_config(void)
+{
+ if (!__internal_config.hwtable)
+ /* not initialized */
+ return NULL;
+ return &__internal_config;
+}
+
@ -49,7 +53,7 @@ index 1818f8b9..422e923d 100644
static int
hwe_strmatch (const struct hwentry *hwe1, const struct hwentry *hwe2)
{
@@ -575,17 +592,15 @@ restart:
@@ -574,17 +594,15 @@ restart:
return;
}
@ -70,7 +74,7 @@ index 1818f8b9..422e923d 100644
if (conf->multipath_dir)
FREE(conf->multipath_dir);
@@ -649,7 +664,27 @@ free_config (struct config * conf)
@@ -650,7 +668,27 @@ free_config (struct config * conf)
free_hwtable(conf->hwtable);
free_hwe(conf->overrides);
free_keywords(conf->keywords);
@ -99,7 +103,7 @@ index 1818f8b9..422e923d 100644
}
/* if multipath fails to process the config directory, it should continue,
@@ -718,12 +753,29 @@ static void set_max_checkint_from_watchdog(struct config *conf)
@@ -719,12 +757,29 @@ static void set_max_checkint_from_watchdog(struct config *conf)
}
#endif
@ -130,7 +134,7 @@ index 1818f8b9..422e923d 100644
/*
* internal defaults
@@ -911,10 +963,10 @@ struct config *load_config(const char *file)
@@ -896,10 +951,10 @@ struct config *load_config(const char *file)
!conf->wwids_file || !conf->prkeys_file)
goto out;
@ -145,10 +149,10 @@ index 1818f8b9..422e923d 100644
char *get_uid_attribute_by_attrs(struct config *conf,
diff --git a/libmultipath/config.h b/libmultipath/config.h
index 78375f2f..83d179ac 100644
index ace403b8..0329de29 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -254,10 +254,25 @@ void free_mptable (vector mptable);
@@ -252,10 +252,25 @@ void free_mptable (vector mptable);
int store_hwe (vector hwtable, struct hwentry *);
struct config *load_config (const char *file);
@ -177,6 +181,24 @@ index 78375f2f..83d179ac 100644
int parse_uid_attrs(char *uid_attrs, struct config *conf);
char *get_uid_attribute_by_attrs(struct config *conf,
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index 97acdbb2..3e780fce 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -251,3 +251,13 @@ global:
libmp_dm_task_run;
cleanup_mutex;
} LIBMULTIPATH_2.0.0;
+
+LIBMULTIPATH_2.2.0 {
+global:
+ libmp_get_multipath_config;
+ get_multipath_config;
+ libmp_put_multipath_config;
+ put_multipath_config;
+ init_config;
+ uninit_config;
+} LIBMULTIPATH_2.1.0;
--
2.17.2

32
0076-libmpathpersist-allow-using-libmultipath-get-put-_mu.patch → 0027-libmpathpersist-allow-using-libmultipath-get-put-_mu.patch
View File

@ -1,23 +1,38 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:09 +0200
Date: Wed, 16 Sep 2020 12:11:46 +0200
Subject: [PATCH] libmpathpersist: allow using libmultipath
{get,put}_multipath_config
Provide an alternative init function libmpathpersist_init() which
avoids allocating a new struct config, simply using libmultipath's
internal implementation.
internal implementation. This causes a minor version bump for
libmpathpersist.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/mpath_persist.c | 42 ++++++++++++++++++++++++++++-----
libmpathpersist/mpath_persist.h | 28 ++++++++++++++++++++++
2 files changed, 64 insertions(+), 6 deletions(-)
libmpathpersist/libmpathpersist.version | 6 ++++
libmpathpersist/mpath_persist.c | 42 +++++++++++++++++++++----
libmpathpersist/mpath_persist.h | 28 +++++++++++++++++
3 files changed, 70 insertions(+), 6 deletions(-)
diff --git a/libmpathpersist/libmpathpersist.version b/libmpathpersist/libmpathpersist.version
index dc648ce6..e0748138 100644
--- a/libmpathpersist/libmpathpersist.version
+++ b/libmpathpersist/libmpathpersist.version
@@ -30,3 +30,9 @@ global:
local: *;
};
+
+LIBMPATHPERSIST_1.1.0 {
+global:
+ libmpathpersist_init;
+ libmpathpersist_exit;
+} LIBMPATHPERSIST_1.0.0;
diff --git a/libmpathpersist/mpath_persist.c b/libmpathpersist/mpath_persist.c
index a132f4e9..9dfc98cd 100644
index cc4a088d..febf4758 100644
--- a/libmpathpersist/mpath_persist.c
+++ b/libmpathpersist/mpath_persist.c
@@ -37,6 +37,27 @@
@ -48,7 +63,7 @@ index a132f4e9..9dfc98cd 100644
struct config *
mpath_lib_init (void)
{
@@ -47,21 +68,30 @@ mpath_lib_init (void)
@@ -47,20 +68,29 @@ mpath_lib_init (void)
condlog(0, "Failed to initialize multipath config.");
return NULL;
}
@ -63,7 +78,6 @@ index a132f4e9..9dfc98cd 100644
-mpath_lib_exit (struct config *conf)
+static void libmpathpersist_cleanup(void)
{
dm_lib_release();
dm_lib_exit();
cleanup_prio();
cleanup_checkers();

205
0027-libmultipath-simplify-failed-wwid-code.patch
View File

@ -1,205 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 19 May 2020 12:08:44 -0500
Subject: [PATCH] libmultipath: simplify failed wwid code
The (is|mark|unmark)_failed_wwid code is needlessly complicated.
Locking a file is necssary if multiple processes could otherwise be
writing to it at the same time. That is not the case with the
failed_wwids files. They can simply be empty files in a directory. Even
with all the locking in place, two processes accessing or modifying a
file at the same time will still race. And even without the locking, if
two processes try to access or modify a file at the same time, they will
both see a reasonable result, and will leave the files in a valid state
afterwards.
Instead of doing all the locking work (which made it necessary to write
a file, even just to check if a file existed), simply check for files
with lstat(), create them with open(), and remove them with unlink().
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/wwids.c | 131 ++++++++++++++++++-------------------------
1 file changed, 56 insertions(+), 75 deletions(-)
diff --git a/libmultipath/wwids.c b/libmultipath/wwids.c
index 637cb0ab..aab5da8a 100644
--- a/libmultipath/wwids.c
+++ b/libmultipath/wwids.c
@@ -6,6 +6,7 @@
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <fcntl.h>
#include "util.h"
#include "checkers.h"
@@ -348,109 +349,89 @@ remember_wwid(char *wwid)
}
static const char shm_dir[] = MULTIPATH_SHM_BASE "failed_wwids";
-static const char shm_lock[] = ".lock";
-static const char shm_header[] = "multipath shm lock file, don't edit";
-static char _shm_lock_path[sizeof(shm_dir)+sizeof(shm_lock)];
-static const char *shm_lock_path = &_shm_lock_path[0];
-static void init_shm_paths(void)
+static void print_failed_wwid_result(const char * msg, const char *wwid, int r)
{
- snprintf(_shm_lock_path, sizeof(_shm_lock_path),
- "%s/%s", shm_dir, shm_lock);
+ switch(r) {
+ case WWID_FAILED_ERROR:
+ condlog(1, "%s: %s: %m", msg, wwid);
+ return;
+ case WWID_IS_FAILED:
+ case WWID_IS_NOT_FAILED:
+ condlog(4, "%s: %s is %s", msg, wwid,
+ r == WWID_IS_FAILED ? "failed" : "good");
+ return;
+ case WWID_FAILED_CHANGED:
+ condlog(3, "%s: %s", msg, wwid);
+ }
}
-static pthread_once_t shm_path_once = PTHREAD_ONCE_INIT;
-
-static int multipath_shm_open(bool rw)
+int is_failed_wwid(const char *wwid)
{
- int fd;
- int can_write;
-
- pthread_once(&shm_path_once, init_shm_paths);
- fd = open_file(shm_lock_path, &can_write, shm_header);
+ struct stat st;
+ char path[PATH_MAX];
+ int r;
- if (fd >= 0 && rw && !can_write) {
- close(fd);
- condlog(1, "failed to open %s for writing", shm_dir);
+ if (safe_sprintf(path, "%s/%s", shm_dir, wwid)) {
+ condlog(1, "%s: path name overflow", __func__);
return -1;
}
- return fd;
-}
-
-static void multipath_shm_close(void *arg)
-{
- long fd = (long)arg;
+ if (lstat(path, &st) == 0)
+ r = WWID_IS_FAILED;
+ else if (errno == ENOENT)
+ r = WWID_IS_NOT_FAILED;
+ else
+ r = WWID_FAILED_ERROR;
- close(fd);
- unlink(shm_lock_path);
+ print_failed_wwid_result("is_failed", wwid, r);
+ return r;
}
-static int _failed_wwid_op(const char *wwid, bool rw,
- int (*func)(const char *), const char *msg)
+int mark_failed_wwid(const char *wwid)
{
char path[PATH_MAX];
- long lockfd;
- int r = -1;
+ int r, fd;
if (safe_sprintf(path, "%s/%s", shm_dir, wwid)) {
condlog(1, "%s: path name overflow", __func__);
return -1;
}
-
- lockfd = multipath_shm_open(rw);
- if (lockfd == -1)
+ if (ensure_directories_exist(path, 0700) < 0) {
+ condlog(1, "%s: can't setup directories", __func__);
return -1;
+ }
- pthread_cleanup_push(multipath_shm_close, (void *)lockfd);
- r = func(path);
- pthread_cleanup_pop(1);
-
- if (r == WWID_FAILED_ERROR)
- condlog(1, "%s: %s: %s", msg, wwid, strerror(errno));
- else if (r == WWID_FAILED_CHANGED)
- condlog(3, "%s: %s", msg, wwid);
- else if (!rw)
- condlog(4, "%s: %s is %s", msg, wwid,
- r == WWID_IS_FAILED ? "failed" : "good");
+ fd = open(path, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR);
+ if (fd >= 0) {
+ close(fd);
+ r = WWID_FAILED_CHANGED;
+ } else if (errno == EEXIST)
+ r = WWID_FAILED_UNCHANGED;
+ else
+ r = WWID_FAILED_ERROR;
+ print_failed_wwid_result("mark_failed", wwid, r);
return r;
}
-static int _is_failed(const char *path)
+int unmark_failed_wwid(const char *wwid)
{
- struct stat st;
+ char path[PATH_MAX];
+ int r;
- if (lstat(path, &st) == 0)
- return WWID_IS_FAILED;
+ if (safe_sprintf(path, "%s/%s", shm_dir, wwid)) {
+ condlog(1, "%s: path name overflow", __func__);
+ return -1;
+ }
+
+ if (unlink(path) == 0)
+ r = WWID_FAILED_CHANGED;
else if (errno == ENOENT)
- return WWID_IS_NOT_FAILED;
+ r = WWID_FAILED_UNCHANGED;
else
- return WWID_FAILED_ERROR;
-}
-
-static int _mark_failed(const char *path)
-{
- /* Called from _failed_wwid_op: we know that shm_lock_path exists */
- if (_is_failed(path) == WWID_IS_FAILED)
- return WWID_FAILED_UNCHANGED;
- return (link(shm_lock_path, path) == 0 ? WWID_FAILED_CHANGED :
- WWID_FAILED_ERROR);
-}
+ r = WWID_FAILED_ERROR;
-static int _unmark_failed(const char *path)
-{
- if (_is_failed(path) == WWID_IS_NOT_FAILED)
- return WWID_FAILED_UNCHANGED;
- return (unlink(path) == 0 ? WWID_FAILED_CHANGED : WWID_FAILED_ERROR);
-}
-
-#define declare_failed_wwid_op(op, rw) \
-int op ## _wwid(const char *wwid) \
-{ \
- return _failed_wwid_op(wwid, (rw), _ ## op, #op); \
+ print_failed_wwid_result("unmark_failed", wwid, r);
+ return r;
}
-
-declare_failed_wwid_op(is_failed, false)
-declare_failed_wwid_op(mark_failed, true)
-declare_failed_wwid_op(unmark_failed, true)
--
2.17.2

96
0028-libmultipath-use-atomic-linkat-in-mark_failed_wwid.patch
View File

@ -1,96 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 19 May 2020 12:08:45 -0500
Subject: [PATCH] libmultipath: use atomic linkat() in mark_failed_wwid()
This keeps (almost) the simplicity of the previous patch, while
making sure that the return value of mark_failed_wwid()
(WWID_FAILED_CHANGED vs. WWID_FAILED_UNCHANGED) is correct, even
if several processes access this WWID at the same time.
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/wwids.c | 42 +++++++++++++++++++++++++++++-------------
1 file changed, 29 insertions(+), 13 deletions(-)
diff --git a/libmultipath/wwids.c b/libmultipath/wwids.c
index aab5da8a..61d9c39e 100644
--- a/libmultipath/wwids.c
+++ b/libmultipath/wwids.c
@@ -374,7 +374,7 @@ int is_failed_wwid(const char *wwid)
if (safe_sprintf(path, "%s/%s", shm_dir, wwid)) {
condlog(1, "%s: path name overflow", __func__);
- return -1;
+ return WWID_FAILED_ERROR;
}
if (lstat(path, &st) == 0)
@@ -390,27 +390,43 @@ int is_failed_wwid(const char *wwid)
int mark_failed_wwid(const char *wwid)
{
- char path[PATH_MAX];
- int r, fd;
+ char tmpfile[WWID_SIZE + 2 * sizeof(long) + 1];
+ int r = WWID_FAILED_ERROR, fd, dfd;
- if (safe_sprintf(path, "%s/%s", shm_dir, wwid)) {
- condlog(1, "%s: path name overflow", __func__);
- return -1;
+ dfd = open(shm_dir, O_RDONLY|O_DIRECTORY);
+ if (dfd == -1 && errno == ENOENT) {
+ char path[sizeof(shm_dir) + 2];
+
+ /* arg for ensure_directories_exist() must not end with "/" */
+ safe_sprintf(path, "%s/_", shm_dir);
+ ensure_directories_exist(path, 0700);
+ dfd = open(shm_dir, O_RDONLY|O_DIRECTORY);
}
- if (ensure_directories_exist(path, 0700) < 0) {
- condlog(1, "%s: can't setup directories", __func__);
- return -1;
+ if (dfd == -1) {
+ condlog(1, "%s: can't setup %s: %m", __func__, shm_dir);
+ return WWID_FAILED_ERROR;
}
- fd = open(path, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR);
- if (fd >= 0) {
+ safe_sprintf(tmpfile, "%s.%lx", wwid, (long)getpid());
+ fd = openat(dfd, tmpfile, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR);
+ if (fd >= 0)
close(fd);
+ else
+ goto out_closedir;
+
+ if (linkat(dfd, tmpfile, dfd, wwid, 0) == 0)
r = WWID_FAILED_CHANGED;
- } else if (errno == EEXIST)
+ else if (errno == EEXIST)
r = WWID_FAILED_UNCHANGED;
else
r = WWID_FAILED_ERROR;
+ if (unlinkat(dfd, tmpfile, 0) == -1)
+ condlog(2, "%s: failed to unlink %s/%s: %m",
+ __func__, shm_dir, tmpfile);
+
+out_closedir:
+ close(dfd);
print_failed_wwid_result("mark_failed", wwid, r);
return r;
}
@@ -422,7 +438,7 @@ int unmark_failed_wwid(const char *wwid)
if (safe_sprintf(path, "%s/%s", shm_dir, wwid)) {
condlog(1, "%s: path name overflow", __func__);
- return -1;
+ return WWID_FAILED_ERROR;
}
if (unlink(path) == 0)
--
2.17.2

15
0077-multipath-use-get_put-_multipath_config-from-libmult.patch → 0028-multipath-use-get_put-_multipath_config-from-libmult.patch
View File

@ -1,20 +1,19 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:10 +0200
Date: Wed, 16 Sep 2020 12:27:09 +0200
Subject: [PATCH] multipath: use {get_put}_multipath_config from libmultipath
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 20 ++++----------------
1 file changed, 4 insertions(+), 16 deletions(-)
diff --git a/multipath/main.c b/multipath/main.c
index ce48a932..879d7ac9 100644
index dc4974b9..4bbfce9a 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -67,7 +67,6 @@
@@ -68,7 +68,6 @@
int logsink;
struct udev *udev;
@ -22,7 +21,7 @@ index ce48a932..879d7ac9 100644
/*
* Return values of configure(), check_path_valid(), and main().
@@ -78,16 +77,6 @@ enum {
@@ -79,16 +78,6 @@ enum {
RTVL_RETRY, /* returned by configure(), not by main() */
};
@ -39,7 +38,7 @@ index ce48a932..879d7ac9 100644
static int
dump_config (struct config *conf, vector hwes, vector mpvec)
{
@@ -892,10 +881,9 @@ main (int argc, char *argv[])
@@ -823,10 +812,9 @@ main (int argc, char *argv[])
udev = udev_new();
logsink = 0;
@ -51,8 +50,8 @@ index ce48a932..879d7ac9 100644
+ conf = get_multipath_config();
conf->retrigger_tries = 0;
conf->force_sync = 1;
while ((arg = getopt(argc, argv, ":aAdDcChl::eFfM:v:p:b:BrR:itTquUwW")) != EOF ) {
@@ -1148,8 +1136,8 @@ out_free_config:
while ((arg = getopt(argc, argv, ":adDcChl::eFfM:v:p:b:BrR:itTquUwW")) != EOF ) {
@@ -1078,8 +1066,8 @@ out_free_config:
* the logging function (dm_write_log()), which is called there,
* references the config.
*/

41
0029-fix-boolean-value-with-json-c-0.14.patch
View File

@ -1,41 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "mail@eworm.de" <mail@eworm.de>
Date: Sat, 25 Apr 2020 21:11:13 +0200
Subject: [PATCH] fix boolean value with json-c 0.14
Upstream json-c removed the TRUE and FALSE defines in commit
0992aac61f8b087efd7094e9ac2b84fa9c040fcd.
[mwilck]: Use stdbool.h, and keep the log message unchanged.
Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libdmmp/libdmmp_private.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libdmmp/libdmmp_private.h b/libdmmp/libdmmp_private.h
index ac85b63f..b1a6ddea 100644
--- a/libdmmp/libdmmp_private.h
+++ b/libdmmp/libdmmp_private.h
@@ -30,6 +30,7 @@
#include <stdint.h>
#include <string.h>
#include <assert.h>
+#include <stdbool.h>
#include <json.h>
#include "libdmmp/libdmmp.h"
@@ -82,7 +83,7 @@ static out_type func_name(struct dmmp_context *ctx, const char *var_name) { \
do { \
json_type j_type = json_type_null; \
json_object *j_obj_tmp = NULL; \
- if (json_object_object_get_ex(j_obj, key, &j_obj_tmp) != TRUE) { \
+ if (json_object_object_get_ex(j_obj, key, &j_obj_tmp) != true) { \
_error(ctx, "Invalid JSON output from multipathd IPC: " \
"key '%s' not found", key); \
rc = DMMP_ERR_IPC_ERROR; \
--
2.17.2

7
0078-mpathpersist-use-get-put-_multipath_config-from-libm.patch → 0029-mpathpersist-use-get-put-_multipath_config-from-libm.patch
View File

@ -1,18 +1,17 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:11 +0200
Date: Wed, 16 Sep 2020 12:39:01 +0200
Subject: [PATCH] mpathpersist: use {get,put}_multipath_config() from
libmultipath
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
mpathpersist/main.c | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)
diff --git a/mpathpersist/main.c b/mpathpersist/main.c
index 28bfe410..0f0db4b8 100644
index a6a3bcf6..278e48f7 100644
--- a/mpathpersist/main.c
+++ b/mpathpersist/main.c
@@ -43,17 +43,6 @@ void mpath_print_transport_id(struct prin_fulldescr *fdesc);
@ -33,7 +32,7 @@ index 28bfe410..0f0db4b8 100644
void rcu_register_thread_memb(void) {}
@@ -620,15 +609,14 @@ int main(int argc, char *argv[])
@@ -653,15 +642,14 @@ int main(int argc, char *argv[])
}
udev = udev_new();

46
0079-libmultipath-add-udev-and-logsink-symbols.patch → 0030-libmultipath-add-udev-and-logsink-symbols.patch
View File

@ -1,6 +1,6 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:12 +0200
Date: Wed, 16 Sep 2020 15:06:12 +0200
Subject: [PATCH] libmultipath: add udev and logsink symbols
With these symbols added, applications using libmultipath don't
@ -16,21 +16,22 @@ libmultipath_init() can be skipped, but like before,
udev should be initialized (using udev_new()) before making any
libmultipath calls.
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.c | 46 +++++++++++++++++++++++++++++++++++++++++++
libmultipath/config.h | 46 ++++++++++++++++++++++++++++++++++++++++++-
libmultipath/debug.c | 2 ++
3 files changed, 93 insertions(+), 1 deletion(-)
libmultipath/config.c | 41 +++++++++++++++++++++++++++
libmultipath/config.h | 46 ++++++++++++++++++++++++++++++-
libmultipath/debug.c | 2 ++
libmultipath/libmultipath.version | 8 ++++++
4 files changed, 96 insertions(+), 1 deletion(-)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index 422e923d..b3809433 100644
index 01b77dfe..f74417c6 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -28,6 +28,52 @@
@@ -27,6 +27,47 @@
#include "mpath_cmd.h"
#include "propsel.h"
#include "version.h"
+/*
+ * We don't support re-initialization after
@ -51,11 +52,6 @@ index 422e923d..b3809433 100644
+ condlog(0, "%s: failed to initialize udev", __func__);
+}
+
+static void _libmultipath_init(void)
+{
+ _udev_init();
+}
+
+static bool _is_libmultipath_initialized(void)
+{
+ return !libmultipath_exit_called && !!udev;
@ -63,7 +59,7 @@ index 422e923d..b3809433 100644
+
+int libmultipath_init(void)
+{
+ pthread_once(&_init_once, _libmultipath_init);
+ pthread_once(&_init_once, _udev_init);
+ return !_is_libmultipath_initialized();
+}
+
@ -82,10 +78,10 @@ index 422e923d..b3809433 100644
struct config *libmp_get_multipath_config(void)
{
diff --git a/libmultipath/config.h b/libmultipath/config.h
index 83d179ac..089b2ac2 100644
index 0329de29..f478df71 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -235,7 +235,51 @@ struct config {
@@ -233,7 +233,51 @@ struct config {
char *enable_foreign;
};
@ -151,6 +147,22 @@ index 4128cb90..b3a1de9e 100644
void dlog (int sink, int prio, const char * fmt, ...)
{
va_list ap;
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index 3e780fce..0c300c81 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -261,3 +261,11 @@ global:
init_config;
uninit_config;
} LIBMULTIPATH_2.1.0;
+
+LIBMULTIPATH_2.3.0 {
+global:
+ udev;
+ logsink;
+ libmultipath_init;
+ libmultipath_exit;
+} LIBMULTIPATH_2.2.0;
--
2.17.2

46
0030-libmultipath-fix-condlog-NULL-argument-in-uevent_get.patch
View File

@ -1,46 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 4 Jun 2020 18:20:06 -0500
Subject: [PATCH] libmultipath: fix condlog NULL argument in uevent_get_env_var
uevent_get_env_var() could call condlog with p == NULL. On gcc 10,
this triggers warnings like:
In file included from uevent.c:47:
In function 'uevent_get_env_var',
inlined from 'uevent_get_wwid' at uevent.c:170:8:
debug.h:13:2: error: '%s' directive argument is null
[-Werror=format-overflow=]
13 | dlog(logsink, prio, fmt "\n", ##args)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
uevent.c:132:2: note: in expansion of macro 'condlog'
132 | condlog(4, "%s: %s -> '%s'", __func__, attr, p);
| ^~~~~~~
uevent.c: In function 'uevent_get_wwid':
uevent.c:132:25: note: format string is defined here
132 | condlog(4, "%s: %s -> '%s'", __func__, attr, p);
| ^~
If p is NULL, use "(null)" instead.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/uevent.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/uevent.c b/libmultipath/uevent.c
index d38e8a7f..e0d13b11 100644
--- a/libmultipath/uevent.c
+++ b/libmultipath/uevent.c
@@ -129,7 +129,7 @@ static const char* uevent_get_env_var(const struct uevent *uev,
}
}
- condlog(4, "%s: %s -> '%s'", __func__, attr, p);
+ condlog(4, "%s: %s -> '%s'", __func__, attr, p ?: "(null)");
return p;
invalid:
--
2.17.2

49
0031-libmultipath-set-enable_foreign-to-NONE-by-default.patch
View File

@ -1,49 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 21 Aug 2019 16:07:12 +0200
Subject: [PATCH] libmultipath: set "enable_foreign" to NONE by default
This has been requested by NetApp.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/defaults.h | 4 ++--
multipath/multipath.conf.5 | 5 +++--
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/libmultipath/defaults.h b/libmultipath/defaults.h
index e5ee6afe..01a501bd 100644
--- a/libmultipath/defaults.h
+++ b/libmultipath/defaults.h
@@ -50,8 +50,8 @@
#define DEFAULT_FIND_MULTIPATHS_TIMEOUT -10
#define DEFAULT_UNKNOWN_FIND_MULTIPATHS_TIMEOUT 1
#define DEFAULT_ALL_TG_PT ALL_TG_PT_OFF
-/* Enable all foreign libraries by default */
-#define DEFAULT_ENABLE_FOREIGN ""
+/* Enable no foreign libraries by default */
+#define DEFAULT_ENABLE_FOREIGN "NONE"
#define CHECKINT_UNDEF UINT_MAX
#define DEFAULT_CHECKINT 5
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 05a5e8ff..28cea88c 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -1228,10 +1228,11 @@ Enables or disables foreign libraries (see section
.I FOREIGN MULTIPATH SUPPORT
below). The value is a regular expression; foreign libraries are loaded
if their name (e.g. \(dqnvme\(dq) matches the expression. By default,
-all foreign libraries are enabled.
+no foreign libraries are enabled. Set this to \(dqnvme\(dq to enable NVMe native
+multipath support, or \(dq.*\(dq to enable all foreign libraries.
.RS
.TP
-The default is: \fB\(dq\(dq\fR (the empty regular expression)
+The default is: \fB\(dqNONE\(dq\fR
.RE
.
.
--
2.17.2

13
0080-multipath-remove-logsink-and-udev.patch → 0031-multipath-remove-logsink-and-udev.patch
View File

@ -1,24 +1,23 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:13 +0200
Date: Wed, 16 Sep 2020 16:06:17 +0200
Subject: [PATCH] multipath: remove logsink and udev
We can use libmultipath's symbols now.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/multipath/main.c b/multipath/main.c
index 879d7ac9..322b30e0 100644
index 4bbfce9a..9ae46ed5 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -65,9 +65,6 @@
#include "file.h"
@@ -66,9 +66,6 @@
#include "valid.h"
#include "alias.h"
-int logsink;
-struct udev *udev;
@ -26,7 +25,7 @@ index 879d7ac9..322b30e0 100644
/*
* Return values of configure(), check_path_valid(), and main().
*/
@@ -879,7 +876,7 @@ main (int argc, char *argv[])
@@ -810,7 +807,7 @@ main (int argc, char *argv[])
int retries = -1;
bool enable_foreign = false;
@ -35,7 +34,7 @@ index 879d7ac9..322b30e0 100644
logsink = 0;
if (init_config(DEFAULT_CONFIGFILE))
exit(RTVL_FAIL);
@@ -1138,7 +1135,7 @@ out_free_config:
@@ -1068,7 +1065,7 @@ out_free_config:
*/
put_multipath_config(conf);
uninit_config();

14
0081-libmpathpersist-call-libmultipath_-init-exit.patch → 0032-libmpathpersist-call-libmultipath_-init-exit.patch
View File

@ -1,19 +1,19 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:14 +0200
Date: Tue, 22 Sep 2020 14:23:14 +0200
Subject: [PATCH] libmpathpersist: call libmultipath_{init,exit}()
Have libmpathpersist_{init,exit} do the udev initialization, too.
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmpathpersist/mpath_persist.c | 13 +++++++++----
libmpathpersist/mpath_persist.c | 11 ++++++++---
libmpathpersist/mpath_persist.h | 9 ++++++---
2 files changed, 15 insertions(+), 7 deletions(-)
2 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/libmpathpersist/mpath_persist.c b/libmpathpersist/mpath_persist.c
index 9dfc98cd..d1538195 100644
index febf4758..e1d1cb76 100644
--- a/libmpathpersist/mpath_persist.c
+++ b/libmpathpersist/mpath_persist.c
@@ -48,6 +48,10 @@ int libmpathpersist_init(void)
@ -27,16 +27,14 @@ index 9dfc98cd..d1538195 100644
if (init_config(DEFAULT_CONFIGFILE)) {
condlog(0, "Failed to initialize multipath config.");
return 1;
@@ -74,24 +78,25 @@ mpath_lib_init (void)
@@ -74,23 +78,24 @@ mpath_lib_init (void)
static void libmpathpersist_cleanup(void)
{
- dm_lib_release();
- dm_lib_exit();
cleanup_prio();
cleanup_checkers();
+ libmultipath_exit();
+ dm_lib_release();
+ dm_lib_exit();
}

89
0032-multipath-add-e-option-to-enable-foreign-libraries.patch
View File

@ -1,89 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 2 Mar 2020 22:43:27 +0100
Subject: [PATCH] multipath: add "-e" option to enable foreign libraries
As we have set "enable_foreign" to "NONE" now by default, users
may find it useful to be able to switch on foreign multipath display
with an extra command line option even if foreign libraries are
not enabled in multipath.conf. Currently this makes only sense
with "multipath -ll", as the nvme library (and foreign libraries
in general) support only the display of status information.
Suggested-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 11 ++++++++++-
multipath/multipath.8 | 6 ++++++
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/multipath/main.c b/multipath/main.c
index 953fab27..c4740fab 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -145,6 +145,7 @@ usage (char * progname)
" -h print this usage text\n"
" -l show multipath topology (sysfs and DM info)\n"
" -ll show multipath topology (maximum info)\n"
+ " -e enable foreign libraries with -l/-ll\n"
" -f flush a multipath device map\n"
" -F flush all multipath device maps\n"
" -a add a device wwid to the wwids file\n"
@@ -865,6 +866,7 @@ main (int argc, char *argv[])
char *dev = NULL;
struct config *conf;
int retries = -1;
+ bool enable_foreign = false;
udev = udev_new();
logsink = 0;
@@ -874,7 +876,7 @@ main (int argc, char *argv[])
multipath_conf = conf;
conf->retrigger_tries = 0;
conf->force_sync = 1;
- while ((arg = getopt(argc, argv, ":adcChl::FfM:v:p:b:BrR:itTquUwW")) != EOF ) {
+ while ((arg = getopt(argc, argv, ":adcChl::eFfM:v:p:b:BrR:itTquUwW")) != EOF ) {
switch(arg) {
case 1: printf("optarg : %s\n",optarg);
break;
@@ -971,6 +973,9 @@ main (int argc, char *argv[])
case 'R':
retries = atoi(optarg);
break;
+ case 'e':
+ enable_foreign = true;
+ break;
case ':':
fprintf(stderr, "Missing option argument\n");
usage(argv[0]);
@@ -1022,6 +1027,10 @@ main (int argc, char *argv[])
condlog(0, "failed to initialize prioritizers");
goto out;
}
+
+ if ((cmd == CMD_LIST_SHORT || cmd == CMD_LIST_LONG) && enable_foreign)
+ conf->enable_foreign = "";
+
/* Failing here is non-fatal */
init_foreign(conf->multipath_dir, conf->enable_foreign);
if (cmd == CMD_USABLE_PATHS) {
diff --git a/multipath/multipath.8 b/multipath/multipath.8
index 9cdd05a3..6fb8645a 100644
--- a/multipath/multipath.8
+++ b/multipath/multipath.8
@@ -223,6 +223,12 @@ The verbosity level also controls the level of log and debug messages printed to
Dry run, do not create or update devmaps.
.
.TP
+.B \-e
+Enable all foreign libraries. This overrides the
+.I enable_foreign
+option from \fBmultipath.conf(5)\fR.
+.
+.TP
.B \-i
Ignore WWIDs file when processing devices. If
\fIfind_multipaths strict\fR or \fIfind_multipaths no\fR is set in
--
2.17.2

139
0033-libmultipath-remove-_blacklist_exceptions-functions.patch
View File

@ -1,139 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 9 Jun 2020 16:35:27 -0500
Subject: [PATCH] libmultipath: remove _blacklist_exceptions functions
_blacklist_exceptions() and _blacklist_exceptions_device() are exactly
the same as _blacklist() and _blacklist_device(), so remove them, and
give the remaining functions to a more general name.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/blacklist.c | 62 ++++++++++------------------------------
1 file changed, 15 insertions(+), 47 deletions(-)
diff --git a/libmultipath/blacklist.c b/libmultipath/blacklist.c
index 00e8dbdb..c21a0e27 100644
--- a/libmultipath/blacklist.c
+++ b/libmultipath/blacklist.c
@@ -101,21 +101,8 @@ int set_ble_device(vector blist, char * vendor, char * product, int origin)
return 0;
}
-int
-_blacklist_exceptions (vector elist, const char * str)
-{
- int i;
- struct blentry * ele;
-
- vector_foreach_slot (elist, ele, i) {
- if (!regexec(&ele->regex, str, 0, NULL, 0))
- return 1;
- }
- return 0;
-}
-
-int
-_blacklist (vector blist, const char * str)
+static int
+match_reglist (vector blist, const char * str)
{
int i;
struct blentry * ble;
@@ -127,28 +114,9 @@ _blacklist (vector blist, const char * str)
return 0;
}
-int
-_blacklist_exceptions_device(const struct _vector *elist, const char * vendor,
- const char * product)
-{
- int i;
- struct blentry_device * ble;
-
- vector_foreach_slot (elist, ble, i) {
- if (!ble->vendor && !ble->product)
- continue;
- if ((!ble->vendor ||
- !regexec(&ble->vendor_reg, vendor, 0, NULL, 0)) &&
- (!ble->product ||
- !regexec(&ble->product_reg, product, 0, NULL, 0)))
- return 1;
- }
- return 0;
-}
-
-int
-_blacklist_device (const struct _vector *blist, const char * vendor,
- const char * product)
+static int
+match_reglist_device (const struct _vector *blist, const char * vendor,
+ const char * product)
{
int i;
struct blentry_device * ble;
@@ -300,9 +268,9 @@ filter_device (vector blist, vector elist, char * vendor, char * product,
int r = MATCH_NOTHING;
if (vendor && product) {
- if (_blacklist_exceptions_device(elist, vendor, product))
+ if (match_reglist_device(elist, vendor, product))
r = MATCH_DEVICE_BLIST_EXCEPT;
- else if (_blacklist_device(blist, vendor, product))
+ else if (match_reglist_device(blist, vendor, product))
r = MATCH_DEVICE_BLIST;
}
@@ -316,9 +284,9 @@ filter_devnode (vector blist, vector elist, char * dev)
int r = MATCH_NOTHING;
if (dev) {
- if (_blacklist_exceptions(elist, dev))
+ if (match_reglist(elist, dev))
r = MATCH_DEVNODE_BLIST_EXCEPT;
- else if (_blacklist(blist, dev))
+ else if (match_reglist(blist, dev))
r = MATCH_DEVNODE_BLIST;
}
@@ -332,9 +300,9 @@ filter_wwid (vector blist, vector elist, char * wwid, char * dev)
int r = MATCH_NOTHING;
if (wwid) {
- if (_blacklist_exceptions(elist, wwid))
+ if (match_reglist(elist, wwid))
r = MATCH_WWID_BLIST_EXCEPT;
- else if (_blacklist(blist, wwid))
+ else if (match_reglist(blist, wwid))
r = MATCH_WWID_BLIST;
}
@@ -351,9 +319,9 @@ filter_protocol(vector blist, vector elist, struct path * pp)
if (pp) {
snprint_path_protocol(buf, sizeof(buf), pp);
- if (_blacklist_exceptions(elist, buf))
+ if (match_reglist(elist, buf))
r = MATCH_PROTOCOL_BLIST_EXCEPT;
- else if (_blacklist(blist, buf))
+ else if (match_reglist(blist, buf))
r = MATCH_PROTOCOL_BLIST;
}
@@ -422,11 +390,11 @@ filter_property(struct config *conf, struct udev_device *udev, int lvl,
if (check_missing_prop && !strcmp(env, uid_attribute))
uid_attr_seen = true;
- if (_blacklist_exceptions(conf->elist_property, env)) {
+ if (match_reglist(conf->elist_property, env)) {
r = MATCH_PROPERTY_BLIST_EXCEPT;
break;
}
- if (_blacklist(conf->blist_property, env)) {
+ if (match_reglist(conf->blist_property, env)) {
r = MATCH_PROPERTY_BLIST;
break;
}
--
2.17.2

8
0082-mpathpersist-remove-logsink-and-udev.patch → 0033-mpathpersist-remove-logsink-and-udev.patch
View File

@ -1,19 +1,19 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:15 +0200
Date: Wed, 16 Sep 2020 16:08:43 +0200
Subject: [PATCH] mpathpersist: remove logsink and udev
We can use libmultipath's internal symbols now. The libmultipath
initialization is taken care of by libmpathpersist_init().
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
mpathpersist/main.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/mpathpersist/main.c b/mpathpersist/main.c
index 0f0db4b8..a25b08f0 100644
index 278e48f7..3c2e6576 100644
--- a/mpathpersist/main.c
+++ b/mpathpersist/main.c
@@ -42,13 +42,10 @@ void * mpath_alloc_prin_response(int prin_sa);
@ -30,7 +30,7 @@ index 0f0db4b8..a25b08f0 100644
static int verbose, loglevel, noisy;
@@ -608,16 +605,13 @@ int main(int argc, char *argv[])
@@ -641,16 +638,13 @@ int main(int argc, char *argv[])
exit (1);
}

95
0034-libmultipath-fix-parser-issue-with-comments-in-strin.patch
View File

@ -1,95 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 9 Jun 2020 16:35:28 -0500
Subject: [PATCH] libmultipath: fix parser issue with comments in strings
If a quoted string starts with '#' or '!', the parser will stop
parsing the line, thinking that it's a comment. It should only
be checking for comments outside of quoted strings. Fixed this and
added unit tests to verify it.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/parser.c | 4 +++-
tests/parser.c | 42 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 45 insertions(+), 1 deletion(-)
diff --git a/libmultipath/parser.c b/libmultipath/parser.c
index d478b177..11a6168c 100644
--- a/libmultipath/parser.c
+++ b/libmultipath/parser.c
@@ -300,8 +300,10 @@ alloc_strvec(char *string)
(isspace((int) *cp) || !isascii((int) *cp)))
&& *cp != '\0')
cp++;
- if (*cp == '\0' || *cp == '!' || *cp == '#')
+ if (*cp == '\0' ||
+ (!in_string && (*cp == '!' || *cp == '#'))) {
return strvec;
+ }
}
out:
vector_free(strvec);
diff --git a/tests/parser.c b/tests/parser.c
index 29859dac..5772391e 100644
--- a/tests/parser.c
+++ b/tests/parser.c
@@ -440,6 +440,46 @@ static void test18(void **state)
free_strvec(v);
}
+static void test19(void **state)
+{
+#define QUOTED19 "!value"
+ vector v = alloc_strvec("key \"" QUOTED19 "\"");
+ char *val;
+
+ assert_int_equal(VECTOR_SIZE(v), 4);
+ assert_string_equal(VECTOR_SLOT(v, 0), "key");
+ assert_true(is_quote(VECTOR_SLOT(v, 1)));
+ assert_string_equal(VECTOR_SLOT(v, 2), QUOTED19);
+ assert_true(is_quote(VECTOR_SLOT(v, 3)));
+ assert_int_equal(validate_config_strvec(v, test_file), 0);
+
+ val = set_value(v);
+ assert_string_equal(val, QUOTED19);
+
+ free(val);
+ free_strvec(v);
+}
+
+static void test20(void **state)
+{
+#define QUOTED20 "#value"
+ vector v = alloc_strvec("key \"" QUOTED20 "\"");
+ char *val;
+
+ assert_int_equal(VECTOR_SIZE(v), 4);
+ assert_string_equal(VECTOR_SLOT(v, 0), "key");
+ assert_true(is_quote(VECTOR_SLOT(v, 1)));
+ assert_string_equal(VECTOR_SLOT(v, 2), QUOTED20);
+ assert_true(is_quote(VECTOR_SLOT(v, 3)));
+ assert_int_equal(validate_config_strvec(v, test_file), 0);
+
+ val = set_value(v);
+ assert_string_equal(val, QUOTED20);
+
+ free(val);
+ free_strvec(v);
+}
+
int test_config_parser(void)
{
const struct CMUnitTest tests[] = {
@@ -461,6 +501,8 @@ int test_config_parser(void)
cmocka_unit_test(test16),
cmocka_unit_test(test17),
cmocka_unit_test(test18),
+ cmocka_unit_test(test19),
+ cmocka_unit_test(test20),
};
return cmocka_run_group_tests(tests, setup, teardown);
}
--
2.17.2

14
0083-multipathd-remove-logsink-and-udev.patch → 0034-multipathd-remove-logsink-and-udev.patch
View File

@ -1,21 +1,21 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 24 Sep 2020 15:37:16 +0200
Date: Wed, 23 Sep 2020 11:28:22 +0200
Subject: [PATCH] multipathd: remove logsink and udev
We can use the symbols from libmultipath now.
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 48b62937..6a4b8b83 100644
index 00b66ba4..c5c374b7 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -113,7 +113,6 @@ struct mpath_event_param
@@ -115,7 +115,6 @@ struct mpath_event_param
struct multipath *mpp;
};
@ -23,7 +23,7 @@ index 48b62937..6a4b8b83 100644
int uxsock_timeout;
int verbosity;
int bindings_read_only;
@@ -144,8 +143,6 @@ static inline enum daemon_status get_running_state(void)
@@ -151,8 +150,6 @@ int should_exit(void)
*/
struct vectors * gvecs;
@ -32,7 +32,7 @@ index 48b62937..6a4b8b83 100644
struct config *multipath_conf;
/* Local variables */
@@ -3009,8 +3006,6 @@ child (__attribute__((unused)) void *param)
@@ -3123,8 +3120,6 @@ child (__attribute__((unused)) void *param)
conf = rcu_dereference(multipath_conf);
rcu_assign_pointer(multipath_conf, NULL);
call_rcu(&conf->rcu, rcu_free_config);
@ -41,7 +41,7 @@ index 48b62937..6a4b8b83 100644
pthread_attr_destroy(&waiter_attr);
pthread_attr_destroy(&io_err_stat_attr);
#ifdef _DEBUG_
@@ -3114,7 +3109,9 @@ main (int argc, char *argv[])
@@ -3228,7 +3223,9 @@ main (int argc, char *argv[])
pthread_cond_init_mono(&config_cond);

435
0035-libmultipath-invert-regexes-that-start-with-exclamat.patch
View File

@ -1,435 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 9 Jun 2020 16:35:29 -0500
Subject: [PATCH] libmultipath: invert regexes that start with exclamation
point
The number of devices that multipath needs to blacklist keeps growing,
and the udev rules already have
KERNEL!="sd*|dasd*|nvme*", GOTO="end_mpath"
so they only work correctly with these device types. Instead of
individually blacklisting every type of device that can't be
multipathed, multipath's default blacklist should work like the udev
rule, and blacklist all devices that aren't scsi, dasd, or nvme.
Unfortunately, the c regex library doesn't support negative lookahead.
Instead, multipath should treat "!" at the beginning of
blacklist/exceptions regexes as inverse matching the rest of the regex.
If users need to match a literal '!' as the first character of their
regex, they can use "\!" instead. This allows multipath to change the
default devnode blacklist regex to "!^(sd[a-z]|dasd[a-z]|nvme[0-9])".
Extra tests have been added to the blacklist unit tests to verify the
inverse matching code and the new default blacklist.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/blacklist.c | 41 +++++++++-----
libmultipath/blacklist.h | 3 +
multipath/multipath.conf.5 | 17 ++++--
tests/blacklist.c | 110 +++++++++++++++++++++++++++++++++++++
tests/test-lib.c | 2 +-
5 files changed, 155 insertions(+), 18 deletions(-)
diff --git a/libmultipath/blacklist.c b/libmultipath/blacklist.c
index c21a0e27..db58ccca 100644
--- a/libmultipath/blacklist.c
+++ b/libmultipath/blacklist.c
@@ -15,9 +15,24 @@
#include "structs_vec.h"
#include "print.h"
+char *check_invert(char *str, bool *invert)
+{
+ if (str[0] == '!') {
+ *invert = true;
+ return str + 1;
+ }
+ if (str[0] == '\\' && str[1] == '!') {
+ *invert = false;
+ return str + 1;
+ }
+ *invert = false;
+ return str;
+}
+
int store_ble(vector blist, char * str, int origin)
{
struct blentry * ble;
+ char *regex_str;
if (!str)
return 0;
@@ -30,7 +45,8 @@ int store_ble(vector blist, char * str, int origin)
if (!ble)
goto out;
- if (regcomp(&ble->regex, str, REG_EXTENDED|REG_NOSUB))
+ regex_str = check_invert(str, &ble->invert);
+ if (regcomp(&ble->regex, regex_str, REG_EXTENDED|REG_NOSUB))
goto out1;
if (!vector_alloc_slot(blist))
@@ -66,6 +82,7 @@ int alloc_ble_device(vector blist)
int set_ble_device(vector blist, char * vendor, char * product, int origin)
{
struct blentry_device * ble;
+ char *regex_str;
if (!blist)
return 1;
@@ -76,7 +93,8 @@ int set_ble_device(vector blist, char * vendor, char * product, int origin)
return 1;
if (vendor) {
- if (regcomp(&ble->vendor_reg, vendor,
+ regex_str = check_invert(vendor, &ble->vendor_invert);
+ if (regcomp(&ble->vendor_reg, regex_str,
REG_EXTENDED|REG_NOSUB)) {
FREE(vendor);
if (product)
@@ -86,7 +104,8 @@ int set_ble_device(vector blist, char * vendor, char * product, int origin)
ble->vendor = vendor;
}
if (product) {
- if (regcomp(&ble->product_reg, product,
+ regex_str = check_invert(product, &ble->product_invert);
+ if (regcomp(&ble->product_reg, regex_str,
REG_EXTENDED|REG_NOSUB)) {
FREE(product);
if (vendor) {
@@ -108,7 +127,7 @@ match_reglist (vector blist, const char * str)
struct blentry * ble;
vector_foreach_slot (blist, ble, i) {
- if (!regexec(&ble->regex, str, 0, NULL, 0))
+ if (!!regexec(&ble->regex, str, 0, NULL, 0) == ble->invert)
return 1;
}
return 0;
@@ -125,9 +144,11 @@ match_reglist_device (const struct _vector *blist, const char * vendor,
if (!ble->vendor && !ble->product)
continue;
if ((!ble->vendor ||
- !regexec(&ble->vendor_reg, vendor, 0, NULL, 0)) &&
+ !!regexec(&ble->vendor_reg, vendor, 0, NULL, 0) ==
+ ble->vendor_invert) &&
(!ble->product ||
- !regexec(&ble->product_reg, product, 0, NULL, 0)))
+ !!regexec(&ble->product_reg, product, 0, NULL, 0) ==
+ ble->product_invert))
return 1;
}
return 0;
@@ -160,13 +181,7 @@ setup_default_blist (struct config * conf)
char * str;
int i;
- str = STRDUP("^(ram|zram|raw|loop|fd|md|dm-|sr|scd|st|dcssblk)[0-9]");
- if (!str)
- return 1;
- if (store_ble(conf->blist_devnode, str, ORIGIN_DEFAULT))
- return 1;
-
- str = STRDUP("^(td|hd|vd)[a-z]");
+ str = STRDUP("!^(sd[a-z]|dasd[a-z]|nvme[0-9])");
if (!str)
return 1;
if (store_ble(conf->blist_devnode, str, ORIGIN_DEFAULT))
diff --git a/libmultipath/blacklist.h b/libmultipath/blacklist.h
index 2d721f60..4305857d 100644
--- a/libmultipath/blacklist.h
+++ b/libmultipath/blacklist.h
@@ -20,6 +20,7 @@
struct blentry {
char * str;
regex_t regex;
+ bool invert;
int origin;
};
@@ -28,6 +29,8 @@ struct blentry_device {
char * product;
regex_t vendor_reg;
regex_t product_reg;
+ bool vendor_invert;
+ bool product_invert;
int origin;
};
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 28cea88c..5adaced6 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -1249,6 +1249,16 @@ being handled by multipath-tools.
.LP
.
.
+In the \fIblacklist\fR and \fIblacklist_exceptions\fR sections, starting a
+quoted value with an exclamation mark \fB"!"\fR will invert the matching
+of the rest of the regular expression. For instance, \fB"!^sd[a-z]"\fR will
+match all values that do not start with \fB"sd[a-z]"\fR. The exclamation mark
+can be escaped \fB"\\!"\fR to match a literal \fB!\fR at the start of a
+regular expression. \fBNote:\fR The exclamation mark must be inside quotes,
+otherwise it will be treated as starting a comment.
+.LP
+.
+.
The \fIblacklist_exceptions\fR section is used to revert the actions of the
\fIblacklist\fR section. This allows one to selectively include ("whitelist") devices which
would normally be excluded via the \fIblacklist\fR section. A common usage is
@@ -1265,10 +1275,9 @@ unless explicitly stated.
Regular expression matching the device nodes to be excluded/included.
.RS
.PP
-The default \fIblacklist\fR consists of the regular expressions
-"^(ram|zram|raw|loop|fd|md|dm-|sr|scd|st|dcssblk)[0-9]" and
-"^(td|hd|vd)[a-z]". This causes virtual devices, non-disk devices, and some other
-device types to be excluded from multipath handling by default.
+The default \fIblacklist\fR consists of the regular expression
+\fB"!^(sd[a-z]|dasd[a-z]|nvme[0-9])"\fR. This causes all device types other
+than scsi, dasd, and nvme to be excluded from multipath handling by default.
.RE
.TP
.B wwid
diff --git a/tests/blacklist.c b/tests/blacklist.c
index 6e7c1864..d5c40898 100644
--- a/tests/blacklist.c
+++ b/tests/blacklist.c
@@ -60,20 +60,46 @@ __wrap_udev_list_entry_get_name(struct udev_list_entry *list_entry)
return *(const char **)list_entry;
}
+vector elist_property_default;
+vector blist_devnode_default;
vector blist_devnode_sdb;
+vector blist_devnode_sdb_inv;
vector blist_all;
vector blist_device_foo_bar;
+vector blist_device_foo_inv_bar;
+vector blist_device_foo_bar_inv;
vector blist_device_all;
vector blist_wwid_xyzzy;
+vector blist_wwid_xyzzy_inv;
vector blist_protocol_fcp;
+vector blist_protocol_fcp_inv;
vector blist_property_wwn;
+vector blist_property_wwn_inv;
static int setup(void **state)
{
+ struct config conf;
+
+ memset(&conf, 0, sizeof(conf));
+ conf.blist_devnode = vector_alloc();
+ if (!conf.blist_devnode)
+ return -1;
+ conf.elist_property = vector_alloc();
+ if (!conf.elist_property)
+ return -1;
+ if (setup_default_blist(&conf) != 0)
+ return -1;
+ elist_property_default = conf.elist_property;
+ blist_devnode_default = conf.blist_devnode;
+
blist_devnode_sdb = vector_alloc();
if (!blist_devnode_sdb ||
store_ble(blist_devnode_sdb, strdup("sdb"), ORIGIN_CONFIG))
return -1;
+ blist_devnode_sdb_inv = vector_alloc();
+ if (!blist_devnode_sdb_inv ||
+ store_ble(blist_devnode_sdb_inv, strdup("!sdb"), ORIGIN_CONFIG))
+ return -1;
blist_all = vector_alloc();
if (!blist_all || store_ble(blist_all, strdup(".*"), ORIGIN_CONFIG))
@@ -84,6 +110,18 @@ static int setup(void **state)
set_ble_device(blist_device_foo_bar, strdup("foo"), strdup("bar"),
ORIGIN_CONFIG))
return -1;
+ blist_device_foo_inv_bar = vector_alloc();
+ if (!blist_device_foo_inv_bar ||
+ alloc_ble_device(blist_device_foo_inv_bar) ||
+ set_ble_device(blist_device_foo_inv_bar, strdup("!foo"),
+ strdup("bar"), ORIGIN_CONFIG))
+ return -1;
+ blist_device_foo_bar_inv = vector_alloc();
+ if (!blist_device_foo_bar_inv ||
+ alloc_ble_device(blist_device_foo_bar_inv) ||
+ set_ble_device(blist_device_foo_bar_inv, strdup("foo"),
+ strdup("!bar"), ORIGIN_CONFIG))
+ return -1;
blist_device_all = vector_alloc();
if (!blist_device_all || alloc_ble_device(blist_device_all) ||
@@ -95,29 +133,50 @@ static int setup(void **state)
if (!blist_wwid_xyzzy ||
store_ble(blist_wwid_xyzzy, strdup("xyzzy"), ORIGIN_CONFIG))
return -1;
+ blist_wwid_xyzzy_inv = vector_alloc();
+ if (!blist_wwid_xyzzy_inv ||
+ store_ble(blist_wwid_xyzzy_inv, strdup("!xyzzy"), ORIGIN_CONFIG))
+ return -1;
blist_protocol_fcp = vector_alloc();
if (!blist_protocol_fcp ||
store_ble(blist_protocol_fcp, strdup("scsi:fcp"), ORIGIN_CONFIG))
return -1;
+ blist_protocol_fcp_inv = vector_alloc();
+ if (!blist_protocol_fcp_inv ||
+ store_ble(blist_protocol_fcp_inv, strdup("!scsi:fcp"),
+ ORIGIN_CONFIG))
+ return -1;
blist_property_wwn = vector_alloc();
if (!blist_property_wwn ||
store_ble(blist_property_wwn, strdup("ID_WWN"), ORIGIN_CONFIG))
return -1;
+ blist_property_wwn_inv = vector_alloc();
+ if (!blist_property_wwn_inv ||
+ store_ble(blist_property_wwn_inv, strdup("!ID_WWN"), ORIGIN_CONFIG))
+ return -1;
return 0;
}
static int teardown(void **state)
{
+ free_blacklist(elist_property_default);
+ free_blacklist(blist_devnode_default);
free_blacklist(blist_devnode_sdb);
+ free_blacklist(blist_devnode_sdb_inv);
free_blacklist(blist_all);
free_blacklist_device(blist_device_foo_bar);
+ free_blacklist_device(blist_device_foo_inv_bar);
+ free_blacklist_device(blist_device_foo_bar_inv);
free_blacklist_device(blist_device_all);
free_blacklist(blist_wwid_xyzzy);
+ free_blacklist(blist_wwid_xyzzy_inv);
free_blacklist(blist_protocol_fcp);
+ free_blacklist(blist_protocol_fcp_inv);
free_blacklist(blist_property_wwn);
+ free_blacklist(blist_property_wwn_inv);
return 0;
}
@@ -141,6 +200,11 @@ static void test_devnode_blacklist(void **state)
expect_condlog(3, "sdb: device node name blacklisted\n");
assert_int_equal(filter_devnode(blist_devnode_sdb, NULL, "sdb"),
MATCH_DEVNODE_BLIST);
+ assert_int_equal(filter_devnode(blist_devnode_sdb_inv, NULL, "sdb"),
+ MATCH_NOTHING);
+ expect_condlog(3, "sdc: device node name blacklisted\n");
+ assert_int_equal(filter_devnode(blist_devnode_sdb_inv, NULL, "sdc"),
+ MATCH_DEVNODE_BLIST);
}
static void test_devnode_whitelist(void **state)
@@ -159,12 +223,39 @@ static void test_devnode_missing(void **state)
MATCH_NOTHING);
}
+static void test_devnode_default(void **state)
+{
+ assert_int_equal(filter_devnode(blist_devnode_default, NULL, "sdaa"),
+ MATCH_NOTHING);
+ assert_int_equal(filter_devnode(blist_devnode_default, NULL, "nvme0n1"),
+ MATCH_NOTHING);
+ assert_int_equal(filter_devnode(blist_devnode_default, NULL, "dasda"),
+ MATCH_NOTHING);
+ expect_condlog(3, "hda: device node name blacklisted\n");
+ assert_int_equal(filter_devnode(blist_devnode_default, NULL, "hda"),
+ MATCH_DEVNODE_BLIST);
+}
+
static void test_device_blacklist(void **state)
{
expect_condlog(3, "sdb: (foo:bar) vendor/product blacklisted\n");
assert_int_equal(filter_device(blist_device_foo_bar, NULL, "foo",
"bar", "sdb"),
MATCH_DEVICE_BLIST);
+ assert_int_equal(filter_device(blist_device_foo_inv_bar, NULL, "foo",
+ "bar", "sdb"),
+ MATCH_NOTHING);
+ assert_int_equal(filter_device(blist_device_foo_bar_inv, NULL, "foo",
+ "bar", "sdb"),
+ MATCH_NOTHING);
+ expect_condlog(3, "sdb: (baz:bar) vendor/product blacklisted\n");
+ assert_int_equal(filter_device(blist_device_foo_inv_bar, NULL, "baz",
+ "bar", "sdb"),
+ MATCH_DEVICE_BLIST);
+ expect_condlog(3, "sdb: (foo:baz) vendor/product blacklisted\n");
+ assert_int_equal(filter_device(blist_device_foo_bar_inv, NULL, "foo",
+ "baz", "sdb"),
+ MATCH_DEVICE_BLIST);
}
static void test_device_whitelist(void **state)
@@ -191,6 +282,11 @@ static void test_wwid_blacklist(void **state)
expect_condlog(3, "sdb: wwid xyzzy blacklisted\n");
assert_int_equal(filter_wwid(blist_wwid_xyzzy, NULL, "xyzzy", "sdb"),
MATCH_WWID_BLIST);
+ assert_int_equal(filter_wwid(blist_wwid_xyzzy_inv, NULL, "xyzzy",
+ "sdb"), MATCH_NOTHING);
+ expect_condlog(3, "sdb: wwid plugh blacklisted\n");
+ assert_int_equal(filter_wwid(blist_wwid_xyzzy_inv, NULL, "plugh",
+ "sdb"), MATCH_WWID_BLIST);
}
static void test_wwid_whitelist(void **state)
@@ -218,6 +314,12 @@ static void test_protocol_blacklist(void **state)
expect_condlog(3, "sdb: protocol scsi:fcp blacklisted\n");
assert_int_equal(filter_protocol(blist_protocol_fcp, NULL, &pp),
MATCH_PROTOCOL_BLIST);
+ assert_int_equal(filter_protocol(blist_protocol_fcp_inv, NULL, &pp),
+ MATCH_NOTHING);
+ pp.sg_id.proto_id = SCSI_PROTOCOL_ATA;
+ expect_condlog(3, "sdb: protocol scsi:ata blacklisted\n");
+ assert_int_equal(filter_protocol(blist_protocol_fcp_inv, NULL, &pp),
+ MATCH_PROTOCOL_BLIST);
}
static void test_protocol_whitelist(void **state)
@@ -245,10 +347,17 @@ static void test_protocol_missing(void **state)
static void test_property_blacklist(void **state)
{
static struct udev_device udev = { "sdb", { "ID_FOO", "ID_WWN", "ID_BAR", NULL } };
+ static struct udev_device udev_inv = { "sdb", { "ID_WWN", NULL } };
conf.blist_property = blist_property_wwn;
expect_condlog(3, "sdb: udev property ID_WWN blacklisted\n");
assert_int_equal(filter_property(&conf, &udev, 3, "ID_SERIAL"),
MATCH_PROPERTY_BLIST);
+ conf.blist_property = blist_property_wwn_inv;
+ expect_condlog(3, "sdb: udev property ID_FOO blacklisted\n");
+ assert_int_equal(filter_property(&conf, &udev, 3, "ID_SERIAL"),
+ MATCH_PROPERTY_BLIST);
+ assert_int_equal(filter_property(&conf, &udev_inv, 3, "ID_SERIAL"),
+ MATCH_NOTHING);
}
/* the property check works different in that you check all the property
@@ -484,6 +593,7 @@ int test_blacklist(void)
cmocka_unit_test(test_devnode_blacklist),
cmocka_unit_test(test_devnode_whitelist),
cmocka_unit_test(test_devnode_missing),
+ cmocka_unit_test(test_devnode_default),
cmocka_unit_test(test_device_blacklist),
cmocka_unit_test(test_device_whitelist),
cmocka_unit_test(test_device_missing),
diff --git a/tests/test-lib.c b/tests/test-lib.c
index 00bae58e..b7c09cc2 100644
--- a/tests/test-lib.c
+++ b/tests/test-lib.c
@@ -15,7 +15,7 @@
#include "test-lib.h"
const int default_mask = (DI_SYSFS|DI_BLACKLIST|DI_WWID|DI_CHECKER|DI_PRIO);
-const char default_devnode[] = "sdTEST";
+const char default_devnode[] = "sdxTEST";
const char default_wwid[] = "TEST-WWID";
/* default_wwid should be a substring of default_wwid_1! */
const char default_wwid_1[] = "TEST-WWID-1";
--
2.17.2

40
0035-multipath-tools-add-Vexata-by-StorCentric-VX-arrays.patch Normal file
View File

@ -0,0 +1,40 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Wed, 16 Dec 2020 23:17:39 +0100
Subject: [PATCH] multipath-tools: add Vexata(by StorCentric) VX arrays
https://support.sas.com/resources/papers/performance-tuning-sas-vexata-systems.pdf
Reviewed-by: Martin Wilck <mwilck@suse.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Benjamin Marzinski <bmarzins@redhat.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: DM-DEVEL ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index cd65afcc..c1d6f7ae 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -1191,6 +1191,14 @@ static struct hwentry default_hw[] = {
.product = "Magnitude",
.pgpolicy = MULTIBUS,
.no_path_retry = 30,
+ },
+ /* Vexata */
+ {
+ /* VX */
+ .vendor = "Vexata",
+ .product = "VX",
+ .pgpolicy = MULTIBUS,
+ .no_path_retry = 30,
},
/*
* Promise Technology
--
2.17.2

111
0036-multipath-Fix-compiler-warnings-when-built-without-s.patch
View File

@ -1,111 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Marius Bakke <marius@devup.no>
Date: Wed, 17 Jun 2020 01:11:26 +0200
Subject: [PATCH] multipath: Fix compiler warnings when built without systemd.
Add ifdef guards for code that is unused when systemd is not available.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.c | 6 ++++--
multipathd/main.c | 10 +++++++++-
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index b4d87689..658bec8b 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -696,9 +696,9 @@ process_config_dir(struct config *conf, char *dir)
pthread_cleanup_pop(1);
}
+#ifdef USE_SYSTEMD
static void set_max_checkint_from_watchdog(struct config *conf)
{
-#ifdef USE_SYSTEMD
char *envp = getenv("WATCHDOG_USEC");
unsigned long checkint;
@@ -714,8 +714,8 @@ static void set_max_checkint_from_watchdog(struct config *conf)
condlog(3, "enabling watchdog, interval %ld", checkint);
conf->use_watchdog = true;
}
-#endif
}
+#endif
struct config *
load_config (char * file)
@@ -789,7 +789,9 @@ load_config (char * file)
/*
* fill the voids left in the config file
*/
+#ifdef USE_SYSTEMD
set_max_checkint_from_watchdog(conf);
+#endif
if (conf->max_checkint == 0) {
if (conf->checkint == CHECKINT_UNDEF)
conf->checkint = DEFAULT_CHECKINT;
diff --git a/multipathd/main.c b/multipathd/main.c
index 6b7db2c0..205ddb32 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -176,6 +176,7 @@ daemon_status(void)
/*
* I love you too, systemd ...
*/
+#ifdef USE_SYSTEMD
static const char *
sd_notify_status(enum daemon_status state)
{
@@ -195,7 +196,6 @@ sd_notify_status(enum daemon_status state)
return NULL;
}
-#ifdef USE_SYSTEMD
static void do_sd_notify(enum daemon_status old_state,
enum daemon_status new_state)
{
@@ -247,7 +247,9 @@ enum daemon_status wait_for_state_change_if(enum daemon_status oldstate,
static void __post_config_state(enum daemon_status state)
{
if (state != running_state && running_state != DAEMON_SHUTDOWN) {
+#ifdef USE_SYSTEMD
enum daemon_status old_state = running_state;
+#endif
running_state = state;
pthread_cond_broadcast(&config_cond);
@@ -272,7 +274,9 @@ int set_config_state(enum daemon_status state)
pthread_cleanup_push(config_cleanup, NULL);
pthread_mutex_lock(&config_lock);
if (running_state != state) {
+#ifdef USE_SYSTEMD
enum daemon_status old_state = running_state;
+#endif
if (running_state == DAEMON_SHUTDOWN)
rc = EINVAL;
@@ -2280,7 +2284,9 @@ checkerloop (void *ap)
struct timespec last_time;
struct config *conf;
int foreign_tick = 0;
+#ifdef USE_SYSTEMD
bool use_watchdog;
+#endif
pthread_cleanup_push(rcu_unregister, NULL);
rcu_register_thread();
@@ -2294,7 +2300,9 @@ checkerloop (void *ap)
/* use_watchdog is set from process environment and never changes */
conf = get_multipath_config();
+#ifdef USE_SYSTEMD
use_watchdog = conf->use_watchdog;
+#endif
put_multipath_config(conf);
while (1) {
--
2.17.2

45
0036-multipath-tools-Violin-and-Nexsan-were-bought-by-Sto.patch Normal file
View File

@ -0,0 +1,45 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Wed, 16 Dec 2020 23:17:40 +0100
Subject: [PATCH] multipath-tools: Violin and Nexsan were bought by StorCentric
Reviewed-by: Martin Wilck <mwilck@suse.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Benjamin Marzinski <bmarzins@redhat.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: DM-DEVEL ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index c1d6f7ae..a54cc0a3 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -1113,8 +1113,9 @@ static struct hwentry default_hw[] = {
.pgpolicy = MULTIBUS,
},
/*
- * Imation/Nexsan
+ * StorCentric
*/
+ /* Nexsan */
{
/* E-Series */
.vendor = "NEXSAN",
@@ -1143,9 +1144,7 @@ static struct hwentry default_hw[] = {
.prio_name = PRIO_ALUA,
.no_path_retry = 30,
},
- /*
- * Violin Systems
- */
+ /* Violin Systems */
{
/* 3000 / 6000 Series */
.vendor = "VIOLIN",
--
2.17.2

117
0037-libmultipath-fix-memory-leaks-in-coalesce_paths.patch Normal file
View File

@ -0,0 +1,117 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: lixiaokeng <lixiaokeng@huawei.com>
Date: Mon, 9 Nov 2020 12:32:05 +0800
Subject: [PATCH] libmultipath: fix memory leaks in coalesce_paths
When multipath -F are executed first and multipath -v2 or
-d are executed later, asan will warn memory leaks. The
reason is that the mpp allocated in coalesce_paths isn't
freed. Here we use newmp to store mpp. If newmp need not
be copied to mpvec, we free newmp at the end of the func.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Lixiaokeng <lixiaokeng@huawei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Linfeilong <linfeilong@huawei.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/configure.c | 40 +++++++++++++++++++++++++++++-----------
1 file changed, 29 insertions(+), 11 deletions(-)
diff --git a/libmultipath/configure.c b/libmultipath/configure.c
index 1c8aac08..d36f0d0d 100644
--- a/libmultipath/configure.c
+++ b/libmultipath/configure.c
@@ -1139,7 +1139,7 @@ out:
* FORCE_RELOAD_WEAK: existing maps are compared to the current conf and only
* reloaded in DM if there's a difference. This is useful during startup.
*/
-int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
+int coalesce_paths (struct vectors *vecs, vector mpvec, char *refwwid,
int force_reload, enum mpath_cmds cmd)
{
int ret = CP_FAIL;
@@ -1151,6 +1151,7 @@ int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
struct path * pp2;
vector curmp = vecs->mpvec;
vector pathvec = vecs->pathvec;
+ vector newmp;
struct config *conf;
int allow_queueing;
struct bitfield *size_mismatch_seen;
@@ -1171,6 +1172,15 @@ int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
if (size_mismatch_seen == NULL)
return CP_FAIL;
+ if (mpvec)
+ newmp = mpvec;
+ else
+ newmp = vector_alloc();
+ if (!newmp) {
+ condlog(0, "can not allocate newmp");
+ goto out;
+ }
+
vector_foreach_slot (pathvec, pp1, k) {
int invalid;
@@ -1283,8 +1293,14 @@ int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
goto out;
}
}
- if (r == DOMAP_DRY)
+ if (r == DOMAP_DRY) {
+ if (!vector_alloc_slot(newmp)) {
+ remove_map(mpp, vecs->pathvec, vecs->mpvec, KEEP_VEC);
+ goto out;
+ }
+ vector_set_slot(newmp, mpp);
continue;
+ }
if (r == DOMAP_EXIST && mpp->action == ACT_NOTHING &&
force_reload == FORCE_RELOAD_WEAK)
@@ -1320,22 +1336,22 @@ int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
print_multipath_topology(mpp, verbosity);
}
- if (newmp) {
- if (mpp->action != ACT_REJECT) {
- if (!vector_alloc_slot(newmp))
- goto out;
- vector_set_slot(newmp, mpp);
+ if (mpp->action != ACT_REJECT) {
+ if (!vector_alloc_slot(newmp)) {
+ remove_map(mpp, vecs->pathvec, vecs->mpvec, KEEP_VEC);
+ goto out;
}
- else
- remove_map(mpp, vecs->pathvec, vecs->mpvec,
- KEEP_VEC);
+ vector_set_slot(newmp, mpp);
}
+ else
+ remove_map(mpp, vecs->pathvec, vecs->mpvec,
+ KEEP_VEC);
}
/*
* Flush maps with only dead paths (ie not in sysfs)
* Keep maps with only failed paths
*/
- if (newmp) {
+ if (mpvec) {
vector_foreach_slot (newmp, mpp, i) {
char alias[WWID_SIZE];
@@ -1358,6 +1374,8 @@ int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
ret = CP_OK;
out:
free(size_mismatch_seen);
+ if (!mpvec)
+ free_multipathvec(newmp, KEEP_PATHS);
return ret;
}
--
2.17.2

43
0037-libmultipath-fix-sysfs-dev_loss_tmo-parsing.patch
View File

@ -1,43 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:38:24 -0500
Subject: [PATCH] libmultipath: fix sysfs dev_loss_tmo parsing
dev_loss_tmo is a u32 value. However the kernel sysfs code prints it as
a signed integer. This means that if dev_loss_tmo is above INT_MAX, the
sysfs value will be a negative number. Parsing this was causing
sysfs_set_rport_tmo() to fail.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
---
libmultipath/discovery.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index ffec5162..83a41a4a 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -583,7 +583,7 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
struct udev_device *rport_dev = NULL;
char value[16], *eptr;
char rport_id[32];
- unsigned long long tmo = 0;
+ unsigned int tmo;
int ret;
sprintf(rport_id, "rport-%d:%d-%d",
@@ -607,8 +607,8 @@ sysfs_set_rport_tmo(struct multipath *mpp, struct path *pp)
"error %d", rport_id, -ret);
goto out;
}
- tmo = strtoull(value, &eptr, 0);
- if (value == eptr || tmo == ULLONG_MAX) {
+ tmo = strtoul(value, &eptr, 0);
+ if (value == eptr) {
condlog(0, "%s: Cannot parse dev_loss_tmo "
"attribute '%s'", rport_id, value);
goto out;
--
2.17.2

267
0038-kpartx-read-devices-with-direct-IO.patch
View File

@ -1,267 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:38:25 -0500
Subject: [PATCH] kpartx: read devices with direct IO
If kpartx is used on top of shared storage, and a device has its
partition table changed on one machine, and then kpartx is run on
another, it may not see the new data, because the cache still contains
the old data, and there is nothing to tell the machine running kpartx to
invalidate it. To solve this, kpartx should read the devices using
direct io.
One issue with how this code has been updated is that the original code
for getblock() always read 1024 bytes. The new code reads a logical
sector size chunk of the device, and returns a pointer to the 512 byte
sector that the caller asked for, within that (possibly larger) chunk.
This means that if the logical sector size is 512, then the code is now
only reading 512 bytes. Looking through the code for the various
partition types, I can't see a case where more than 512 bytes is needed
and getblock() is used. If anyone has a reason why this code should be
reading 1024 bytes at minmum, I can certainly change this. But when I
looked, I couldn't find a case where reading 512 bytes would cause a
problem.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
kpartx/dasd.c | 7 ++++---
kpartx/gpt.c | 22 +++++++++----------
kpartx/kpartx.c | 56 +++++++++++++++++++++++++++++++++++++++----------
kpartx/kpartx.h | 2 ++
4 files changed, 61 insertions(+), 26 deletions(-)
diff --git a/kpartx/dasd.c b/kpartx/dasd.c
index 14b9d3aa..f0398645 100644
--- a/kpartx/dasd.c
+++ b/kpartx/dasd.c
@@ -22,6 +22,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@@ -117,13 +118,13 @@ read_dasd_pt(int fd, __attribute__((unused)) struct slice all,
sprintf(pathname, "/dev/.kpartx-node-%u-%u",
(unsigned int)major(dev), (unsigned int)minor(dev));
- if ((fd_dasd = open(pathname, O_RDONLY)) == -1) {
+ if ((fd_dasd = open(pathname, O_RDONLY | O_DIRECT)) == -1) {
/* Devicenode does not exist. Try to create one */
if (mknod(pathname, 0600 | S_IFBLK, dev) == -1) {
/* Couldn't create a device node */
return -1;
}
- fd_dasd = open(pathname, O_RDONLY);
+ fd_dasd = open(pathname, O_RDONLY | O_DIRECT);
/*
* The file will vanish when the last process (we)
* has ceased to access it.
@@ -175,7 +176,7 @@ read_dasd_pt(int fd, __attribute__((unused)) struct slice all,
* Get volume label, extract name and type.
*/
- if (!(data = (unsigned char *)malloc(blocksize)))
+ if (aligned_malloc((void **)&data, blocksize, NULL))
goto out;
diff --git a/kpartx/gpt.c b/kpartx/gpt.c
index 785b34ea..f7fefb70 100644
--- a/kpartx/gpt.c
+++ b/kpartx/gpt.c
@@ -243,8 +243,7 @@ alloc_read_gpt_entries(int fd, gpt_header * gpt)
if (!count) return NULL;
- pte = (gpt_entry *)malloc(count);
- if (!pte)
+ if (aligned_malloc((void **)&pte, get_sector_size(fd), &count))
return NULL;
memset(pte, 0, count);
@@ -269,12 +268,11 @@ static gpt_header *
alloc_read_gpt_header(int fd, uint64_t lba)
{
gpt_header *gpt;
- gpt = (gpt_header *)
- malloc(sizeof (gpt_header));
- if (!gpt)
+ size_t size = sizeof (gpt_header);
+ if (aligned_malloc((void **)&gpt, get_sector_size(fd), &size))
return NULL;
- memset(gpt, 0, sizeof (*gpt));
- if (!read_lba(fd, lba, gpt, sizeof (gpt_header))) {
+ memset(gpt, 0, size);
+ if (!read_lba(fd, lba, gpt, size)) {
free(gpt);
return NULL;
}
@@ -498,6 +496,7 @@ find_valid_gpt(int fd, gpt_header ** gpt, gpt_entry ** ptes)
gpt_header *pgpt = NULL, *agpt = NULL;
gpt_entry *pptes = NULL, *aptes = NULL;
legacy_mbr *legacymbr = NULL;
+ size_t size = sizeof(legacy_mbr);
uint64_t lastlba;
if (!gpt || !ptes)
return 0;
@@ -526,11 +525,10 @@ find_valid_gpt(int fd, gpt_header ** gpt, gpt_entry ** ptes)
}
/* This will be added to the EFI Spec. per Intel after v1.02. */
- legacymbr = malloc(sizeof (*legacymbr));
- if (legacymbr) {
- memset(legacymbr, 0, sizeof (*legacymbr));
- read_lba(fd, 0, (uint8_t *) legacymbr,
- sizeof (*legacymbr));
+ if (aligned_malloc((void **)&legacymbr, get_sector_size(fd),
+ &size) == 0) {
+ memset(legacymbr, 0, size);
+ read_lba(fd, 0, (uint8_t *) legacymbr, size);
good_pmbr = is_pmbr_valid(legacymbr);
free(legacymbr);
legacymbr=NULL;
diff --git a/kpartx/kpartx.c b/kpartx/kpartx.c
index d3620c5c..c24ad6d9 100644
--- a/kpartx/kpartx.c
+++ b/kpartx/kpartx.c
@@ -19,6 +19,7 @@
* cva, 2002-10-26
*/
+#define _GNU_SOURCE
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
@@ -41,7 +42,6 @@
#define SIZE(a) (sizeof(a)/sizeof((a)[0]))
-#define READ_SIZE 1024
#define MAXTYPES 64
#define MAXSLICES 256
#define DM_TARGET "linear"
@@ -388,7 +388,7 @@ main(int argc, char **argv){
set_delimiter(mapname, delim);
}
- fd = open(device, O_RDONLY);
+ fd = open(device, O_RDONLY | O_DIRECT);
if (fd == -1) {
perror(device);
@@ -690,9 +690,9 @@ xmalloc (size_t size) {
*/
static int
-sseek(int fd, unsigned int secnr) {
+sseek(int fd, unsigned int secnr, int secsz) {
off64_t in, out;
- in = ((off64_t) secnr << 9);
+ in = ((off64_t) secnr * secsz);
out = 1;
if ((out = lseek64(fd, in, SEEK_SET)) != in)
@@ -703,6 +703,31 @@ sseek(int fd, unsigned int secnr) {
return 0;
}
+int
+aligned_malloc(void **mem_p, size_t align, size_t *size_p)
+{
+ static size_t pgsize = 0;
+ size_t size;
+ int err;
+
+ if (!mem_p || !align || (size_p && !*size_p))
+ return EINVAL;
+
+ if (!pgsize)
+ pgsize = getpagesize();
+
+ if (size_p)
+ size = ((*size_p + align - 1) / align) * align;
+ else
+ size = pgsize;
+
+ err = posix_memalign(mem_p, pgsize, size);
+ if (!err && size_p)
+ *size_p = size;
+ return err;
+}
+
+/* always in sector size blocks */
static
struct block {
unsigned int secnr;
@@ -710,30 +735,39 @@ struct block {
struct block *next;
} *blockhead;
+/* blknr is always in 512 byte blocks */
char *
-getblock (int fd, unsigned int secnr) {
+getblock (int fd, unsigned int blknr) {
+ unsigned int secsz = get_sector_size(fd);
+ unsigned int blks_per_sec = secsz / 512;
+ unsigned int secnr = blknr / blks_per_sec;
+ unsigned int blk_off = (blknr % blks_per_sec) * 512;
struct block *bp;
for (bp = blockhead; bp; bp = bp->next)
if (bp->secnr == secnr)
- return bp->block;
+ return bp->block + blk_off;
- if (sseek(fd, secnr))
+ if (sseek(fd, secnr, secsz))
return NULL;
bp = xmalloc(sizeof(struct block));
bp->secnr = secnr;
bp->next = blockhead;
blockhead = bp;
- bp->block = (char *) xmalloc(READ_SIZE);
+ if (aligned_malloc((void **)&bp->block, secsz, NULL)) {
+ fprintf(stderr, "aligned_malloc failed\n");
+ exit(1);
+ }
- if (read(fd, bp->block, READ_SIZE) != READ_SIZE) {
+ if (read(fd, bp->block, secsz) != secsz) {
fprintf(stderr, "read error, sector %d\n", secnr);
- bp->block = NULL;
+ blockhead = bp->next;
+ return NULL;
}
- return bp->block;
+ return bp->block + blk_off;
}
int
diff --git a/kpartx/kpartx.h b/kpartx/kpartx.h
index 67edeb82..727632c1 100644
--- a/kpartx/kpartx.h
+++ b/kpartx/kpartx.h
@@ -1,6 +1,7 @@
#ifndef _KPARTX_H
#define _KPARTX_H
+#include <stddef.h>
#include <stdint.h>
#include <sys/ioctl.h>
@@ -61,6 +62,7 @@ extern ptreader read_mac_pt;
extern ptreader read_sun_pt;
extern ptreader read_ps3_pt;
+int aligned_malloc(void **mem_p, size_t align, size_t *size_p);
char *getblock(int fd, unsigned int secnr);
static inline unsigned int
--
2.17.2

31
0038-multipath-tools-replace-hidden-tab-by-space-in-hwtab.patch Normal file
View File

@ -0,0 +1,31 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Thu, 17 Dec 2020 16:49:38 +0100
Subject: [PATCH] multipath-tools: replace hidden tab by space in hwtable
Cc: Martin Wilck <mwilck@suse.com>
Cc: Benjamin Marzinski <bmarzins@redhat.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: DM-DEVEL ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index a54cc0a3..921aadc5 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -819,7 +819,7 @@ static struct hwentry default_hw[] = {
*
* The hwtable is searched backwards, so place this after "Generic NVMe"
*/
- .vendor = "NVME",
+ .vendor = "NVME",
.product = "^NetApp ONTAP Controller",
.pgpolicy = MULTIBUS,
.no_path_retry = NO_PATH_RETRY_QUEUE,
--
2.17.2

53
0039-kpartx-handle-alternate-bsd-disklabel-location.patch
View File

@ -1,53 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:38:26 -0500
Subject: [PATCH] kpartx: handle alternate bsd disklabel location
bsd disk labels can either be at the start of the second sector, or 64
bytes into the first sector, but kpartx only handled the first case.
However the second case is what parted creates, and what the linux
kernel partition code expects. kpartx should handle both cases.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
kpartx/bsd.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/kpartx/bsd.c b/kpartx/bsd.c
index 0e661fbc..950b0f92 100644
--- a/kpartx/bsd.c
+++ b/kpartx/bsd.c
@@ -1,6 +1,7 @@
#include "kpartx.h"
#include <stdio.h>
+#define BSD_LABEL_OFFSET 64
#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
#define XBSD_MAXPARTITIONS 16
#define BSD_FS_UNUSED 0
@@ -60,8 +61,19 @@ read_bsd_pt(int fd, struct slice all, struct slice *sp, unsigned int ns) {
return -1;
l = (struct bsd_disklabel *) bp;
- if (l->d_magic != BSD_DISKMAGIC)
- return -1;
+ if (l->d_magic != BSD_DISKMAGIC) {
+ /*
+ * BSD disklabels can also start 64 bytes offset from the
+ * start of the first sector
+ */
+ bp = getblock(fd, offset);
+ if (bp == NULL)
+ return -1;
+
+ l = (struct bsd_disklabel *)(bp + 64);
+ if (l->d_magic != BSD_DISKMAGIC)
+ return -1;
+ }
max_partitions = 16;
if (l->d_npartitions < max_partitions)
--
2.17.2

105
0039-multipathd-uxlsnr-avoid-deadlock-on-exit.patch Normal file
View File

@ -0,0 +1,105 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 22 Sep 2020 20:59:25 +0200
Subject: [PATCH] multipathd: uxlsnr: avoid deadlock on exit
The uxlsnr wouldn't always release the client lock when cancelled,
causing a deadlock in uxsock_cleanup(). While this hasn't been
caused by commit 3d611a2, the deadlock seems to have become much
more likely after that patch. Solving this means that we have to
treat reallocation failure of the pollfd array differently.
We will now just ignore any clients above the last valid pfd index.
That's a minor problem, as we're in an OOM situation anyway.
Moreover, client_lock is not a "struct lock", but a plain
pthread_mutex_t.
Fixes: 3d611a2 ("multipathd: cancel threads early during shutdown")
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/uxlsnr.c | 24 ++++++++++++++----------
1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/multipathd/uxlsnr.c b/multipathd/uxlsnr.c
index 1c5ce9d2..ce2b6800 100644
--- a/multipathd/uxlsnr.c
+++ b/multipathd/uxlsnr.c
@@ -35,6 +35,7 @@
#include "config.h"
#include "mpath_cmd.h"
#include "time-util.h"
+#include "util.h"
#include "main.h"
#include "cli.h"
@@ -116,7 +117,7 @@ static void _dead_client(struct client *c)
static void dead_client(struct client *c)
{
- pthread_cleanup_push(cleanup_lock, &client_lock);
+ pthread_cleanup_push(cleanup_mutex, &client_lock);
pthread_mutex_lock(&client_lock);
_dead_client(c);
pthread_cleanup_pop(1);
@@ -302,10 +303,11 @@ void * uxsock_listen(uxsock_trigger_fn uxsock_trigger, long ux_sock,
sigdelset(&mask, SIGUSR1);
while (1) {
struct client *c, *tmp;
- int i, poll_count, num_clients;
+ int i, n_pfds, poll_count, num_clients;
/* setup for a poll */
pthread_mutex_lock(&client_lock);
+ pthread_cleanup_push(cleanup_mutex, &client_lock);
num_clients = 0;
list_for_each_entry(c, &clients, node) {
num_clients++;
@@ -322,14 +324,13 @@ void * uxsock_listen(uxsock_trigger_fn uxsock_trigger, long ux_sock,
sizeof(struct pollfd));
}
if (!new) {
- pthread_mutex_unlock(&client_lock);
condlog(0, "%s: failed to realloc %d poll fds",
"uxsock", 2 + num_clients);
- sched_yield();
- continue;
+ num_clients = old_clients;
+ } else {
+ old_clients = num_clients;
+ polls = new;
}
- old_clients = num_clients;
- polls = new;
}
polls[0].fd = ux_sock;
polls[0].events = POLLIN;
@@ -347,11 +348,14 @@ void * uxsock_listen(uxsock_trigger_fn uxsock_trigger, long ux_sock,
polls[i].fd = c->fd;
polls[i].events = POLLIN;
i++;
+ if (i >= 2 + num_clients)
+ break;
}
- pthread_mutex_unlock(&client_lock);
+ n_pfds = i;
+ pthread_cleanup_pop(1);
/* most of our life is spent in this call */
- poll_count = ppoll(polls, i, &sleep_time, &mask);
+ poll_count = ppoll(polls, n_pfds, &sleep_time, &mask);
handle_signals(false);
if (poll_count == -1) {
@@ -384,7 +388,7 @@ void * uxsock_listen(uxsock_trigger_fn uxsock_trigger, long ux_sock,
}
/* see if a client wants to speak to us */
- for (i = 2; i < num_clients + 2; i++) {
+ for (i = 2; i < n_pfds; i++) {
if (polls[i].revents & POLLIN) {
struct timespec start_time;
--
2.17.2

62
0040-libmultipath-fix-checker-detection-for-nvme-devices.patch
View File

@ -1,62 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:38:27 -0500
Subject: [PATCH] libmultipath: fix checker detection for nvme devices
In order to fix hwhandler autodetection, commit 8794a776 made
detect_alua() differentiate between failures to detect whether alua was
supported, and successfully detecting that it was not supported.
However, this causes nvme devices to get the TUR checker assigned to
them. This is because there is nothing in detect_alua() to make it only
work on scsi devices, and select_checker wasn't updated to handle
detect_alua() failing without setting pp->tpgs to TPGS_NONE.
detect_alua() should automatically set pp->tpgs to TPGS_NONE and exit on
non-scsi devices. Also, select_checker() should not assume that a
devices is ALUA, simply because if failed to detect if alua was
supported.
Fixes: 8794a776 "libmultipath: fix ALUA autodetection when paths are
down"
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/discovery.c | 6 ++++++
libmultipath/propsel.c | 4 +++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index 83a41a4a..aa5942c3 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -887,6 +887,12 @@ detect_alua(struct path * pp)
int tpgs;
unsigned int timeout;
+
+ if (pp->bus != SYSFS_BUS_SCSI) {
+ pp->tpgs = TPGS_NONE;
+ return;
+ }
+
if (sysfs_get_timeout(pp, &timeout) <= 0)
timeout = DEF_TIMEOUT;
diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
index 897e48ca..d362beb4 100644
--- a/libmultipath/propsel.c
+++ b/libmultipath/propsel.c
@@ -521,7 +521,9 @@ int select_checker(struct config *conf, struct path *pp)
if (check_rdac(pp)) {
ckr_name = RDAC;
goto out;
- } else if (path_get_tpgs(pp) != TPGS_NONE) {
+ }
+ path_get_tpgs(pp);
+ if (pp->tpgs != TPGS_NONE && pp->tpgs != TPGS_UNDEF) {
ckr_name = TUR;
goto out;
}
--
2.17.2

98
0040-multipathd-Fix-liburcu-memory-leak.patch Normal file
View File

@ -0,0 +1,98 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 18:02:39 +0200
Subject: [PATCH] multipathd: Fix liburcu memory leak
Fix this leak in multipathd, reported by valgrind, that messes up
multipathd's otherwise clean leak report:
==23823== 336 bytes in 1 blocks are possibly lost in loss record 3 of 3
==23823== at 0x483AB65: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==23823== by 0x4012F16: _dl_allocate_tls (in /lib64/ld-2.31.so)
==23823== by 0x493BB8E: pthread_create@@GLIBC_2.2.5 (in /lib64/libpthread-2.31.so)
==23823== by 0x492A9A9: call_rcu_data_init (urcu-call-rcu-impl.h:437)
==23823== by 0x492AD2F: UnknownInlinedFun (urcu-call-rcu-impl.h:492)
==23823== by 0x492AD2F: create_call_rcu_data_memb (urcu-call-rcu-impl.h:504)
==23823== by 0x1164E3: child.constprop.0.isra.0 (main.c:2915)
==23823== by 0x10F50C: main (main.c:3335)
==23823==
==23823== LEAK SUMMARY:
==23823== definitely lost: 0 bytes in 0 blocks
==23823== indirectly lost: 0 bytes in 0 blocks
==23823== possibly lost: 336 bytes in 1 blocks
The problem is caused by using liburcu's default RCU call handler,
which liburcu refuses to stop/join. See comments in the code.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 44 insertions(+), 1 deletion(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index c5c374b7..ce14bb66 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -2889,6 +2889,48 @@ set_oom_adj (void)
condlog(0, "couldn't adjust oom score");
}
+/*
+ * Use a non-default call_rcu_data for child().
+ *
+ * We do this to avoid a memory leak from liburcu.
+ * liburcu never frees the default rcu handler (see comments on
+ * call_rcu_data_free() in urcu-call-rcu-impl.h), its thread
+ * can't be joined with pthread_join(), leaving a memory leak.
+ *
+ * Therefore we create our own, which can be destroyed and joined.
+ */
+static struct call_rcu_data *setup_rcu(void)
+{
+ struct call_rcu_data *crdp;
+
+ rcu_init();
+ rcu_register_thread();
+ crdp = create_call_rcu_data(0UL, -1);
+ if (crdp != NULL)
+ set_thread_call_rcu_data(crdp);
+ return crdp;
+}
+
+static struct call_rcu_data *mp_rcu_data;
+
+static void cleanup_rcu(void)
+{
+ pthread_t rcu_thread;
+
+ /* Wait for any pending RCU calls */
+ rcu_barrier();
+ if (mp_rcu_data != NULL) {
+ rcu_thread = get_call_rcu_thread(mp_rcu_data);
+ /* detach this thread from the RCU thread */
+ set_thread_call_rcu_data(NULL);
+ synchronize_rcu();
+ /* tell RCU thread to exit */
+ call_rcu_data_free(mp_rcu_data);
+ pthread_join(rcu_thread, NULL);
+ }
+ rcu_unregister_thread();
+}
+
static int
child (__attribute__((unused)) void *param)
{
@@ -2906,7 +2948,8 @@ child (__attribute__((unused)) void *param)
mlockall(MCL_CURRENT | MCL_FUTURE);
signal_init();
- rcu_init();
+ mp_rcu_data = setup_rcu();
+ atexit(cleanup_rcu);
setup_thread_attr(&misc_attr, 64 * 1024, 0);
setup_thread_attr(&uevent_attr, DEFAULT_UEVENT_STACKSIZE * 1024, 0);
--
2.17.2

322
0041-libmultipath-make-dm_get_map-status-return-codes-sym.patch
View File

@ -1,322 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:07:00 -0500
Subject: [PATCH] libmultipath: make dm_get_map/status return codes symbolic
dm_get_map() and dm_get_status() now use symbolic return codes. They
also differentiate between failing to get information from device-mapper
and not finding the requested device. These symboilc return codes are
also used by update_multipath_* functions.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/devmapper.c | 51 +++++++++++++++++++++++++-------------
libmultipath/devmapper.h | 6 +++++
libmultipath/structs_vec.c | 45 +++++++++++++++++++--------------
multipathd/main.c | 12 ++++-----
4 files changed, 72 insertions(+), 42 deletions(-)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 27d52398..24cc616a 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -534,36 +534,43 @@ int dm_map_present(const char * str)
int dm_get_map(const char *name, unsigned long long *size, char *outparams)
{
- int r = 1;
+ int r = DMP_ERR;
struct dm_task *dmt;
uint64_t start, length;
char *target_type = NULL;
char *params = NULL;
if (!(dmt = libmp_dm_task_create(DM_DEVICE_TABLE)))
- return 1;
+ return r;
if (!dm_task_set_name(dmt, name))
goto out;
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt))
+ errno = 0;
+ if (!dm_task_run(dmt)) {
+ if (dm_task_get_errno(dmt) == ENXIO)
+ r = DMP_NOT_FOUND;
goto out;
+ }
+ r = DMP_NOT_FOUND;
/* Fetch 1st target */
- dm_get_next_target(dmt, NULL, &start, &length,
- &target_type, &params);
+ if (dm_get_next_target(dmt, NULL, &start, &length,
+ &target_type, &params) != NULL)
+ /* more than one target */
+ goto out;
if (size)
*size = length;
if (!outparams) {
- r = 0;
+ r = DMP_OK;
goto out;
}
if (snprintf(outparams, PARAMS_SIZE, "%s", params) <= PARAMS_SIZE)
- r = 0;
+ r = DMP_OK;
out:
dm_task_destroy(dmt);
return r;
@@ -637,35 +644,45 @@ is_mpath_part(const char *part_name, const char *map_name)
int dm_get_status(const char *name, char *outstatus)
{
- int r = 1;
+ int r = DMP_ERR;
struct dm_task *dmt;
uint64_t start, length;
char *target_type = NULL;
char *status = NULL;
if (!(dmt = libmp_dm_task_create(DM_DEVICE_STATUS)))
- return 1;
+ return r;
if (!dm_task_set_name(dmt, name))
goto out;
dm_task_no_open_count(dmt);
- if (!dm_task_run(dmt))
+ errno = 0;
+ if (!dm_task_run(dmt)) {
+ if (dm_task_get_errno(dmt) == ENXIO)
+ r = DMP_NOT_FOUND;
goto out;
+ }
+ r = DMP_NOT_FOUND;
/* Fetch 1st target */
- dm_get_next_target(dmt, NULL, &start, &length,
- &target_type, &status);
+ if (dm_get_next_target(dmt, NULL, &start, &length,
+ &target_type, &status) != NULL)
+ goto out;
+
+ if (!target_type || strcmp(target_type, TGT_MPATH) != 0)
+ goto out;
+
if (!status) {
condlog(2, "get null status.");
goto out;
}
if (snprintf(outstatus, PARAMS_SIZE, "%s", status) <= PARAMS_SIZE)
- r = 0;
+ r = DMP_OK;
out:
- if (r)
+ if (r != DMP_OK)
condlog(0, "%s: error getting map status string", name);
dm_task_destroy(dmt);
@@ -920,7 +937,7 @@ int _dm_flush_map (const char * mapname, int need_sync, int deferred_remove,
return 1;
if (need_suspend &&
- !dm_get_map(mapname, &mapsize, params) &&
+ dm_get_map(mapname, &mapsize, params) == DMP_OK &&
strstr(params, "queue_if_no_path")) {
if (!dm_queue_if_no_path(mapname, 0))
queue_if_no_path = 1;
@@ -1129,7 +1146,7 @@ struct multipath *dm_get_multipath(const char *name)
if (!mpp->alias)
goto out;
- if (dm_get_map(name, &mpp->size, NULL))
+ if (dm_get_map(name, &mpp->size, NULL) != DMP_OK)
goto out;
dm_get_uuid(name, mpp->wwid, WWID_SIZE);
@@ -1313,7 +1330,7 @@ do_foreach_partmaps (const char * mapname,
/*
* and we can fetch the map table from the kernel
*/
- !dm_get_map(names->name, &size, &params[0]) &&
+ dm_get_map(names->name, &size, &params[0]) == DMP_OK &&
/*
* and the table maps over the multipath map
diff --git a/libmultipath/devmapper.h b/libmultipath/devmapper.h
index 5ed7edc5..b2108638 100644
--- a/libmultipath/devmapper.h
+++ b/libmultipath/devmapper.h
@@ -27,6 +27,12 @@
#define UUID_PREFIX "mpath-"
#define UUID_PREFIX_LEN (sizeof(UUID_PREFIX) - 1)
+enum {
+ DMP_ERR,
+ DMP_OK,
+ DMP_NOT_FOUND,
+};
+
void dm_init(int verbosity);
int dm_prereq(unsigned int *v);
void skip_libmp_dm_init(void);
diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
index 077f2e42..8137ea21 100644
--- a/libmultipath/structs_vec.c
+++ b/libmultipath/structs_vec.c
@@ -196,43 +196,47 @@ extract_hwe_from_path(struct multipath * mpp)
int
update_multipath_table (struct multipath *mpp, vector pathvec, int is_daemon)
{
+ int r = DMP_ERR;
char params[PARAMS_SIZE] = {0};
if (!mpp)
- return 1;
+ return r;
- if (dm_get_map(mpp->alias, &mpp->size, params)) {
- condlog(3, "%s: cannot get map", mpp->alias);
- return 1;
+ r = dm_get_map(mpp->alias, &mpp->size, params);
+ if (r != DMP_OK) {
+ condlog(3, "%s: %s", mpp->alias, (r == DMP_ERR)? "error getting table" : "map not present");
+ return r;
}
if (disassemble_map(pathvec, params, mpp, is_daemon)) {
condlog(3, "%s: cannot disassemble map", mpp->alias);
- return 1;
+ return DMP_ERR;
}
- return 0;
+ return DMP_OK;
}
int
update_multipath_status (struct multipath *mpp)
{
+ int r = DMP_ERR;
char status[PARAMS_SIZE] = {0};
if (!mpp)
- return 1;
+ return r;
- if (dm_get_status(mpp->alias, status)) {
- condlog(3, "%s: cannot get status", mpp->alias);
- return 1;
+ r = dm_get_status(mpp->alias, status);
+ if (r != DMP_OK) {
+ condlog(3, "%s: %s", mpp->alias, (r == DMP_ERR)? "error getting status" : "map not present");
+ return r;
}
if (disassemble_status(status, mpp)) {
condlog(3, "%s: cannot disassemble status", mpp->alias);
- return 1;
+ return DMP_ERR;
}
- return 0;
+ return DMP_OK;
}
void sync_paths(struct multipath *mpp, vector pathvec)
@@ -264,10 +268,10 @@ int
update_multipath_strings(struct multipath *mpp, vector pathvec, int is_daemon)
{
struct pathgroup *pgp;
- int i;
+ int i, r = DMP_ERR;
if (!mpp)
- return 1;
+ return r;
update_mpp_paths(mpp, pathvec);
condlog(4, "%s: %s", mpp->alias, __FUNCTION__);
@@ -276,18 +280,21 @@ update_multipath_strings(struct multipath *mpp, vector pathvec, int is_daemon)
free_pgvec(mpp->pg, KEEP_PATHS);
mpp->pg = NULL;
- if (update_multipath_table(mpp, pathvec, is_daemon))
- return 1;
+ r = update_multipath_table(mpp, pathvec, is_daemon);
+ if (r != DMP_OK)
+ return r;
+
sync_paths(mpp, pathvec);
- if (update_multipath_status(mpp))
- return 1;
+ r = update_multipath_status(mpp);
+ if (r != DMP_OK)
+ return r;
vector_foreach_slot(mpp->pg, pgp, i)
if (pgp->paths)
path_group_prio_update(pgp);
- return 0;
+ return DMP_OK;
}
static void enter_recovery_mode(struct multipath *mpp)
diff --git a/multipathd/main.c b/multipathd/main.c
index 205ddb32..ab141fed 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -418,7 +418,7 @@ int __setup_multipath(struct vectors *vecs, struct multipath *mpp,
goto out;
}
- if (update_multipath_strings(mpp, vecs->pathvec, 1)) {
+ if (update_multipath_strings(mpp, vecs->pathvec, 1) != DMP_OK) {
condlog(0, "%s: failed to setup multipath", mpp->alias);
goto out;
}
@@ -557,9 +557,9 @@ add_map_without_path (struct vectors *vecs, const char *alias)
mpp->mpe = find_mpe(conf->mptable, mpp->wwid);
put_multipath_config(conf);
- if (update_multipath_table(mpp, vecs->pathvec, 1))
+ if (update_multipath_table(mpp, vecs->pathvec, 1) != DMP_OK)
goto out;
- if (update_multipath_status(mpp))
+ if (update_multipath_status(mpp) != DMP_OK)
goto out;
if (!vector_alloc_slot(vecs->mpvec))
@@ -1350,8 +1350,8 @@ map_discovery (struct vectors * vecs)
return 1;
vector_foreach_slot (vecs->mpvec, mpp, i)
- if (update_multipath_table(mpp, vecs->pathvec, 1) ||
- update_multipath_status(mpp)) {
+ if (update_multipath_table(mpp, vecs->pathvec, 1) != DMP_OK ||
+ update_multipath_status(mpp) != DMP_OK) {
remove_map(mpp, vecs, 1);
i--;
}
@@ -2091,7 +2091,7 @@ check_path (struct vectors * vecs, struct path * pp, unsigned int ticks)
/*
* Synchronize with kernel state
*/
- if (update_multipath_strings(pp->mpp, vecs->pathvec, 1)) {
+ if (update_multipath_strings(pp->mpp, vecs->pathvec, 1) != DMP_OK) {
condlog(1, "%s: Could not synchronize with kernel state",
pp->dev);
pp->dmstate = PSTATE_UNDEF;
--
2.17.2

146
0041-multipathd-move-handling-of-io_err_stat_attr-into-li.patch Normal file
View File

@ -0,0 +1,146 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 10:33:12 +0200
Subject: [PATCH] multipathd: move handling of io_err_stat_attr into
libmultipath
This thread attribute can be dynamically initialized and destroyed.
No need to carry it along in multipathd. Removal of the symbol
requires to bump the ABI version to 3.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/io_err_stat.c | 7 +++++--
libmultipath/libmultipath.version | 23 ++++++++---------------
multipathd/main.c | 2 --
3 files changed, 13 insertions(+), 19 deletions(-)
diff --git a/libmultipath/io_err_stat.c b/libmultipath/io_err_stat.c
index 58bc1dd2..5363049d 100644
--- a/libmultipath/io_err_stat.c
+++ b/libmultipath/io_err_stat.c
@@ -34,6 +34,7 @@
#include "lock.h"
#include "time-util.h"
#include "io_err_stat.h"
+#include "util.h"
#define TIMEOUT_NO_IO_NSEC 10000000 /*10ms = 10000000ns*/
#define FLAKY_PATHFAIL_THRESHOLD 2
@@ -70,8 +71,7 @@ struct io_err_stat_path {
int err_rate_threshold;
};
-pthread_t io_err_stat_thr;
-pthread_attr_t io_err_stat_attr;
+static pthread_t io_err_stat_thr;
static pthread_mutex_t io_err_thread_lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t io_err_thread_cond = PTHREAD_COND_INITIALIZER;
@@ -727,6 +727,7 @@ static void *io_err_stat_loop(void *data)
int start_io_err_stat_thread(void *data)
{
int ret;
+ pthread_attr_t io_err_stat_attr;
if (uatomic_read(&io_err_thread_running) == 1)
return 0;
@@ -739,6 +740,7 @@ int start_io_err_stat_thread(void *data)
if (!paths)
goto destroy_ctx;
+ setup_thread_attr(&io_err_stat_attr, 32 * 1024, 0);
pthread_mutex_lock(&io_err_thread_lock);
pthread_cleanup_push(cleanup_unlock, &io_err_thread_lock);
@@ -750,6 +752,7 @@ int start_io_err_stat_thread(void *data)
&io_err_thread_lock) == 0);
pthread_cleanup_pop(1);
+ pthread_attr_destroy(&io_err_stat_attr);
if (ret) {
io_err_stat_log(0, "cannot create io_error statistic thread");
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index 0c300c81..84beb7f0 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -31,7 +31,7 @@
* The new version inherits the previous ones.
*/
-LIBMULTIPATH_2.0.0 {
+LIBMULTIPATH_3.0.0 {
global:
/* symbols referenced by multipath and multipathd */
add_foreign;
@@ -121,7 +121,6 @@ global:
init_checkers;
init_foreign;
init_prio;
- io_err_stat_attr;
io_err_stat_handle_pathfail;
is_path_valid;
is_quote;
@@ -242,30 +241,24 @@ global:
free_scandir_result;
sysfs_attr_get_value;
-local:
- *;
-};
-
-LIBMULTIPATH_2.1.0 {
-global:
+ /* added in 2.1.0 */
libmp_dm_task_run;
cleanup_mutex;
-} LIBMULTIPATH_2.0.0;
-LIBMULTIPATH_2.2.0 {
-global:
+ /* added in 2.2.0 */
libmp_get_multipath_config;
get_multipath_config;
libmp_put_multipath_config;
put_multipath_config;
init_config;
uninit_config;
-} LIBMULTIPATH_2.1.0;
-LIBMULTIPATH_2.3.0 {
-global:
+ /* added in 2.3.0 */
udev;
logsink;
libmultipath_init;
libmultipath_exit;
-} LIBMULTIPATH_2.2.0;
+
+local:
+ *;
+};
diff --git a/multipathd/main.c b/multipathd/main.c
index ce14bb66..abc6a9f7 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -2954,7 +2954,6 @@ child (__attribute__((unused)) void *param)
setup_thread_attr(&misc_attr, 64 * 1024, 0);
setup_thread_attr(&uevent_attr, DEFAULT_UEVENT_STACKSIZE * 1024, 0);
setup_thread_attr(&waiter_attr, 32 * 1024, 1);
- setup_thread_attr(&io_err_stat_attr, 32 * 1024, 0);
if (logsink == 1) {
setup_thread_attr(&log_attr, 64 * 1024, 0);
@@ -3164,7 +3163,6 @@ child (__attribute__((unused)) void *param)
rcu_assign_pointer(multipath_conf, NULL);
call_rcu(&conf->rcu, rcu_free_config);
pthread_attr_destroy(&waiter_attr);
- pthread_attr_destroy(&io_err_stat_attr);
#ifdef _DEBUG_
dbg_free_final(NULL);
#endif
--
2.17.2

116
0042-multipathd-fix-check_path-errors-with-removed-map.patch
View File

@ -1,116 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:07:01 -0500
Subject: [PATCH] multipathd: fix check_path errors with removed map
If a multipath device is removed during, or immediately before the call
to check_path(), multipathd can behave incorrectly. A missing multpath
device will cause update_multipath_strings() to fail, setting
pp->dmstate to PSTATE_UNDEF. If the path is up, this state will cause
reinstate_path() to be called, which will also fail. This will trigger
a reload, restoring the recently removed device.
If update_multipath_strings() fails because there is no multipath
device, check_path should just quit, since the remove dmevent and uevent
are likely already queued up. Also, I don't see any reason to reload the
multipath device if reinstate fails. This code was added by
fac68d7a99ef17d496079538a5c6836acd7911ab, which clamined that reinstate
could fail if the path was disabled. Looking through the current kernel
code, I can't see any reason why a reinstate would fail, where a reload
would help. If the path was missing from the multipath device,
update_multipath_strings() would already catch that, and quit
check_path() early, which make more sense to me than reloading does.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 44 +++++++++++++++++++-------------------------
1 file changed, 19 insertions(+), 25 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index ab141fed..daf19a4e 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1615,22 +1615,18 @@ fail_path (struct path * pp, int del_active)
/*
* caller must have locked the path list before calling that function
*/
-static int
+static void
reinstate_path (struct path * pp)
{
- int ret = 0;
-
if (!pp->mpp)
- return 0;
+ return;
- if (dm_reinstate_path(pp->mpp->alias, pp->dev_t)) {
+ if (dm_reinstate_path(pp->mpp->alias, pp->dev_t))
condlog(0, "%s: reinstate failed", pp->dev_t);
- ret = 1;
- } else {
+ else {
condlog(2, "%s: reinstated", pp->dev_t);
update_queue_mode_add_path(pp->mpp);
}
- return ret;
}
static void
@@ -2091,9 +2087,16 @@ check_path (struct vectors * vecs, struct path * pp, unsigned int ticks)
/*
* Synchronize with kernel state
*/
- if (update_multipath_strings(pp->mpp, vecs->pathvec, 1) != DMP_OK) {
- condlog(1, "%s: Could not synchronize with kernel state",
- pp->dev);
+ ret = update_multipath_strings(pp->mpp, vecs->pathvec, 1);
+ if (ret != DMP_OK) {
+ if (ret == DMP_NOT_FOUND) {
+ /* multipath device missing. Likely removed */
+ condlog(1, "%s: multipath device '%s' not found",
+ pp->dev, pp->mpp->alias);
+ return 0;
+ } else
+ condlog(1, "%s: Couldn't synchronize with kernel state",
+ pp->dev);
pp->dmstate = PSTATE_UNDEF;
}
/* if update_multipath_strings orphaned the path, quit early */
@@ -2183,12 +2186,8 @@ check_path (struct vectors * vecs, struct path * pp, unsigned int ticks)
/*
* reinstate this path
*/
- if (!disable_reinstate && reinstate_path(pp)) {
- condlog(3, "%s: reload map", pp->dev);
- ev_add_path(pp, vecs, 1);
- pp->tick = 1;
- return 0;
- }
+ if (!disable_reinstate)
+ reinstate_path(pp);
new_path_up = 1;
if (oldchkrstate != PATH_UP && oldchkrstate != PATH_GHOST)
@@ -2204,15 +2203,10 @@ check_path (struct vectors * vecs, struct path * pp, unsigned int ticks)
else if (newstate == PATH_UP || newstate == PATH_GHOST) {
if ((pp->dmstate == PSTATE_FAILED ||
pp->dmstate == PSTATE_UNDEF) &&
- !disable_reinstate) {
+ !disable_reinstate)
/* Clear IO errors */
- if (reinstate_path(pp)) {
- condlog(3, "%s: reload map", pp->dev);
- ev_add_path(pp, vecs, 1);
- pp->tick = 1;
- return 0;
- }
- } else {
+ reinstate_path(pp);
+ else {
LOG_MSG(4, verbosity, pp);
if (pp->checkint != max_checkint) {
/*
--
2.17.2

125
0042-multipathd-move-vecs-desctruction-into-cleanup-funct.patch Normal file
View File

@ -0,0 +1,125 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 18:05:40 +0200
Subject: [PATCH] multipathd: move vecs desctruction into cleanup function
This will make it easer to move the stuff around later.
The only functional change is that map destuction now happens after
joining all threads, which should actually improve robustness.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 64 +++++++++++++++++++++++++++++------------------
1 file changed, 40 insertions(+), 24 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index abc6a9f7..3da0d7cc 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -148,7 +148,7 @@ int should_exit(void)
/*
* global copy of vecs for use in sig handlers
*/
-struct vectors * gvecs;
+static struct vectors * gvecs;
struct config *multipath_conf;
@@ -2889,6 +2889,44 @@ set_oom_adj (void)
condlog(0, "couldn't adjust oom score");
}
+static void cleanup_maps(struct vectors *vecs)
+{
+ int queue_without_daemon, i;
+ struct multipath *mpp;
+ struct config *conf;
+
+ conf = get_multipath_config();
+ queue_without_daemon = conf->queue_without_daemon;
+ put_multipath_config(conf);
+ if (queue_without_daemon == QUE_NO_DAEMON_OFF)
+ vector_foreach_slot(vecs->mpvec, mpp, i)
+ dm_queue_if_no_path(mpp->alias, 0);
+ remove_maps_and_stop_waiters(vecs);
+ vecs->mpvec = NULL;
+}
+
+static void cleanup_paths(struct vectors *vecs)
+{
+ free_pathvec(vecs->pathvec, FREE_PATHS);
+ vecs->pathvec = NULL;
+}
+
+static void cleanup_vecs(void)
+{
+ if (!gvecs)
+ return;
+ /*
+ * We can't take the vecs lock here, because exit() may
+ * have been called from the child() thread, holding the lock already.
+ * Anyway, by the time we get here, all threads that might access
+ * vecs should have been joined already (in cleanup_threads).
+ */
+ cleanup_maps(gvecs);
+ cleanup_paths(gvecs);
+ pthread_mutex_destroy(&gvecs->lock.mutex);
+ FREE(gvecs);
+}
+
/*
* Use a non-default call_rcu_data for child().
*
@@ -2937,13 +2975,10 @@ child (__attribute__((unused)) void *param)
pthread_t check_thr, uevent_thr, uxlsnr_thr, uevq_thr, dmevent_thr;
pthread_attr_t log_attr, misc_attr, uevent_attr;
struct vectors * vecs;
- struct multipath * mpp;
- int i;
int rc;
int pid_fd = -1;
struct config *conf;
char *envp;
- int queue_without_daemon;
enum daemon_status state;
mlockall(MCL_CURRENT | MCL_FUTURE);
@@ -3108,17 +3143,6 @@ child (__attribute__((unused)) void *param)
if (poll_dmevents)
pthread_cancel(dmevent_thr);
- conf = get_multipath_config();
- queue_without_daemon = conf->queue_without_daemon;
- put_multipath_config(conf);
-
- lock(&vecs->lock);
- if (queue_without_daemon == QUE_NO_DAEMON_OFF)
- vector_foreach_slot(vecs->mpvec, mpp, i)
- dm_queue_if_no_path(mpp->alias, 0);
- remove_maps_and_stop_waiters(vecs);
- unlock(&vecs->lock);
-
pthread_join(check_thr, NULL);
pthread_join(uevent_thr, NULL);
pthread_join(uxlsnr_thr, NULL);
@@ -3128,15 +3152,7 @@ child (__attribute__((unused)) void *param)
stop_io_err_stat_thread();
- lock(&vecs->lock);
- free_pathvec(vecs->pathvec, FREE_PATHS);
- vecs->pathvec = NULL;
- unlock(&vecs->lock);
-
- pthread_mutex_destroy(&vecs->lock.mutex);
- FREE(vecs);
- vecs = NULL;
-
+ cleanup_vecs();
cleanup_foreign();
cleanup_checkers();
cleanup_prio();
--
2.17.2

46
0043-libmultipath-make-dm_flush_maps-only-return-0-on-suc.patch
View File

@ -1,46 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:07:02 -0500
Subject: [PATCH] libmultipath: make dm_flush_maps only return 0 on success
dm_flush_maps() returned both 0 and 1 on error, depending on which part
of the function it was in, but the caller was always treating 0 as a
success. Make dm_flush_maps() always return 1 on error and 0 on success.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/devmapper.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 24cc616a..4c86b6d4 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -1007,13 +1007,13 @@ dm_flush_map_nopaths(const char * mapname, int deferred_remove)
int dm_flush_maps (int retries)
{
- int r = 0;
+ int r = 1;
struct dm_task *dmt;
struct dm_names *names;
unsigned next = 0;
if (!(dmt = libmp_dm_task_create (DM_DEVICE_LIST)))
- return 0;
+ return r;
dm_task_no_open_count(dmt);
@@ -1026,6 +1026,7 @@ int dm_flush_maps (int retries)
if (!names->dev)
goto out;
+ r = 0;
do {
r |= dm_suspend_and_flush_map(names->name, retries);
next = names->next;
--
2.17.2

45
0043-multipathd-make-some-globals-static.patch Normal file
View File

@ -0,0 +1,45 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 11:18:02 +0200
Subject: [PATCH] multipathd: make some globals static
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 3da0d7cc..eb760a71 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -116,19 +116,19 @@ struct mpath_event_param
};
int uxsock_timeout;
-int verbosity;
-int bindings_read_only;
+static int verbosity;
+static int bindings_read_only;
int ignore_new_devs;
#ifdef NO_DMEVENTS_POLL
-int poll_dmevents = 0;
+static int poll_dmevents = 0;
#else
-int poll_dmevents = 1;
+static int poll_dmevents = 1;
#endif
/* Don't access this variable without holding config_lock */
-volatile enum daemon_status running_state = DAEMON_INIT;
+static volatile enum daemon_status running_state = DAEMON_INIT;
pid_t daemon_pid;
-pthread_mutex_t config_lock = PTHREAD_MUTEX_INITIALIZER;
-pthread_cond_t config_cond;
+static pthread_mutex_t config_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t config_cond;
static inline enum daemon_status get_running_state(void)
{
--
2.17.2

161
0044-multipathd-add-del-maps-multipathd-command.patch
View File

@ -1,161 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:07:03 -0500
Subject: [PATCH] multipathd: add "del maps" multipathd command
This will flush all multipath devices.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/devmapper.c | 7 +++++--
libmultipath/devmapper.h | 2 +-
multipath/main.c | 2 +-
multipathd/cli.c | 1 +
multipathd/cli_handlers.c | 19 +++++++++++++++++++
multipathd/cli_handlers.h | 1 +
multipathd/main.c | 3 ++-
multipathd/main.h | 1 +
8 files changed, 31 insertions(+), 5 deletions(-)
diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c
index 4c86b6d4..f597ff8b 100644
--- a/libmultipath/devmapper.c
+++ b/libmultipath/devmapper.c
@@ -1005,7 +1005,7 @@ dm_flush_map_nopaths(const char * mapname, int deferred_remove)
#endif
-int dm_flush_maps (int retries)
+int dm_flush_maps (int need_suspend, int retries)
{
int r = 1;
struct dm_task *dmt;
@@ -1028,7 +1028,10 @@ int dm_flush_maps (int retries)
r = 0;
do {
- r |= dm_suspend_and_flush_map(names->name, retries);
+ if (need_suspend)
+ r |= dm_suspend_and_flush_map(names->name, retries);
+ else
+ r |= dm_flush_map(names->name);
next = names->next;
names = (void *) names + next;
} while (next);
diff --git a/libmultipath/devmapper.h b/libmultipath/devmapper.h
index b2108638..6dd178c8 100644
--- a/libmultipath/devmapper.h
+++ b/libmultipath/devmapper.h
@@ -57,7 +57,7 @@ int dm_flush_map_nopaths(const char * mapname, int deferred_remove);
#define dm_suspend_and_flush_map(mapname, retries) \
_dm_flush_map(mapname, 1, 0, 1, retries)
int dm_cancel_deferred_remove(struct multipath *mpp);
-int dm_flush_maps (int retries);
+int dm_flush_maps (int need_suspend, int retries);
int dm_fail_path(const char * mapname, char * path);
int dm_reinstate_path(const char * mapname, char * path);
int dm_queue_if_no_path(const char *mapname, int enable);
diff --git a/multipath/main.c b/multipath/main.c
index c4740fab..d89f0a91 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -1096,7 +1096,7 @@ main (int argc, char *argv[])
goto out;
}
else if (conf->remove == FLUSH_ALL) {
- r = dm_flush_maps(retries) ? RTVL_FAIL : RTVL_OK;
+ r = dm_flush_maps(1, retries) ? RTVL_FAIL : RTVL_OK;
goto out;
}
while ((r = configure(conf, cmd, dev_type, dev)) == RTVL_RETRY)
diff --git a/multipathd/cli.c b/multipathd/cli.c
index 800c0fbe..bdc9fb10 100644
--- a/multipathd/cli.c
+++ b/multipathd/cli.c
@@ -568,6 +568,7 @@ cli_init (void) {
add_handler(DEL+PATH, NULL);
add_handler(ADD+MAP, NULL);
add_handler(DEL+MAP, NULL);
+ add_handler(DEL+MAPS, NULL);
add_handler(SWITCH+MAP+GROUP, NULL);
add_handler(RECONFIGURE, NULL);
add_handler(SUSPEND+MAP, NULL);
diff --git a/multipathd/cli_handlers.c b/multipathd/cli_handlers.c
index 31c3d9fd..782bb003 100644
--- a/multipathd/cli_handlers.c
+++ b/multipathd/cli_handlers.c
@@ -852,6 +852,25 @@ cli_del_map (void * v, char ** reply, int * len, void * data)
return rc;
}
+int
+cli_del_maps (void *v, char **reply, int *len, void *data)
+{
+ struct vectors * vecs = (struct vectors *)data;
+ struct multipath *mpp;
+ int i, ret = 0;
+
+ condlog(2, "remove maps (operator)");
+ vector_foreach_slot(vecs->mpvec, mpp, i) {
+ if (flush_map(mpp, vecs, 0))
+ ret++;
+ else
+ i--;
+ }
+ /* flush any multipath maps that aren't currently known by multipathd */
+ ret |= dm_flush_maps(0, 0);
+ return ret;
+}
+
int
cli_reload(void *v, char **reply, int *len, void *data)
{
diff --git a/multipathd/cli_handlers.h b/multipathd/cli_handlers.h
index 0f451064..6f57b429 100644
--- a/multipathd/cli_handlers.h
+++ b/multipathd/cli_handlers.h
@@ -26,6 +26,7 @@ int cli_add_path (void * v, char ** reply, int * len, void * data);
int cli_del_path (void * v, char ** reply, int * len, void * data);
int cli_add_map (void * v, char ** reply, int * len, void * data);
int cli_del_map (void * v, char ** reply, int * len, void * data);
+int cli_del_maps (void * v, char ** reply, int * len, void * data);
int cli_switch_group(void * v, char ** reply, int * len, void * data);
int cli_reconfigure(void * v, char ** reply, int * len, void * data);
int cli_resize(void * v, char ** reply, int * len, void * data);
diff --git a/multipathd/main.c b/multipathd/main.c
index daf19a4e..f014d2a1 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -635,7 +635,7 @@ sync_maps_state(vector mpvec)
sync_map_state(mpp);
}
-static int
+int
flush_map(struct multipath * mpp, struct vectors * vecs, int nopaths)
{
int r;
@@ -1555,6 +1555,7 @@ uxlsnrloop (void * ap)
set_handler_callback(DEL+PATH, cli_del_path);
set_handler_callback(ADD+MAP, cli_add_map);
set_handler_callback(DEL+MAP, cli_del_map);
+ set_handler_callback(DEL+MAPS, cli_del_maps);
set_handler_callback(SWITCH+MAP+GROUP, cli_switch_group);
set_unlocked_handler_callback(RECONFIGURE, cli_reconfigure);
set_handler_callback(SUSPEND+MAP, cli_suspend);
diff --git a/multipathd/main.h b/multipathd/main.h
index 7bb8463f..5dff17e5 100644
--- a/multipathd/main.h
+++ b/multipathd/main.h
@@ -28,6 +28,7 @@ int ev_add_path (struct path *, struct vectors *, int);
int ev_remove_path (struct path *, struct vectors *, int);
int ev_add_map (char *, const char *, struct vectors *);
int ev_remove_map (char *, char *, int, struct vectors *);
+int flush_map(struct multipath *, struct vectors *, int);
int set_config_state(enum daemon_status);
void * mpath_alloc_prin_response(int prin_sa);
int prin_do_scsi_ioctl(char *, int rq_servact, struct prin_resp * resp,
--
2.17.2

164
0044-multipathd-move-threads-destruction-into-separate-fu.patch Normal file
View File

@ -0,0 +1,164 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 11:18:44 +0200
Subject: [PATCH] multipathd: move threads destruction into separate function
Also, introduce booleans that indicate a certain thread has
been started successfully. Using these booleans, we can avoid
crashing by cancelling threads that have never been started.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 76 +++++++++++++++++++++++++++++++----------------
1 file changed, 51 insertions(+), 25 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index eb760a71..9eb658d4 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -129,6 +129,9 @@ static volatile enum daemon_status running_state = DAEMON_INIT;
pid_t daemon_pid;
static pthread_mutex_t config_lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t config_cond;
+static pthread_t check_thr, uevent_thr, uxlsnr_thr, uevq_thr, dmevent_thr;
+static bool check_thr_started, uevent_thr_started, uxlsnr_thr_started,
+ uevq_thr_started, dmevent_thr_started;
static inline enum daemon_status get_running_state(void)
{
@@ -2927,6 +2930,39 @@ static void cleanup_vecs(void)
FREE(gvecs);
}
+static void cleanup_threads(void)
+{
+ stop_io_err_stat_thread();
+
+ if (check_thr_started)
+ pthread_cancel(check_thr);
+ if (uevent_thr_started)
+ pthread_cancel(uevent_thr);
+ if (uxlsnr_thr_started)
+ pthread_cancel(uxlsnr_thr);
+ if (uevq_thr_started)
+ pthread_cancel(uevq_thr);
+ if (dmevent_thr_started)
+ pthread_cancel(dmevent_thr);
+
+ if (check_thr_started)
+ pthread_join(check_thr, NULL);
+ if (uevent_thr_started)
+ pthread_join(uevent_thr, NULL);
+ if (uxlsnr_thr_started)
+ pthread_join(uxlsnr_thr, NULL);
+ if (uevq_thr_started)
+ pthread_join(uevq_thr, NULL);
+ if (dmevent_thr_started)
+ pthread_join(dmevent_thr, NULL);
+
+ /*
+ * As all threads are joined now, and we're in DAEMON_SHUTDOWN
+ * state, no new waiter threads will be created any more.
+ */
+ pthread_attr_destroy(&waiter_attr);
+}
+
/*
* Use a non-default call_rcu_data for child().
*
@@ -2972,7 +3008,6 @@ static void cleanup_rcu(void)
static int
child (__attribute__((unused)) void *param)
{
- pthread_t check_thr, uevent_thr, uxlsnr_thr, uevq_thr, dmevent_thr;
pthread_attr_t log_attr, misc_attr, uevent_attr;
struct vectors * vecs;
int rc;
@@ -3070,9 +3105,12 @@ child (__attribute__((unused)) void *param)
condlog(0, "failed to create cli listener: %d", rc);
goto failed;
}
- else if (state != DAEMON_CONFIGURE) {
- condlog(0, "cli listener failed to start");
- goto failed;
+ else {
+ uxlsnr_thr_started = true;
+ if (state != DAEMON_CONFIGURE) {
+ condlog(0, "cli listener failed to start");
+ goto failed;
+ }
}
if (poll_dmevents) {
@@ -3085,7 +3123,8 @@ child (__attribute__((unused)) void *param)
condlog(0, "failed to create dmevent waiter thread: %d",
rc);
goto failed;
- }
+ } else
+ dmevent_thr_started = true;
}
/*
@@ -3094,7 +3133,8 @@ child (__attribute__((unused)) void *param)
if ((rc = pthread_create(&uevent_thr, &uevent_attr, ueventloop, udev))) {
condlog(0, "failed to create uevent thread: %d", rc);
goto failed;
- }
+ } else
+ uevent_thr_started = true;
pthread_attr_destroy(&uevent_attr);
/*
@@ -3103,11 +3143,13 @@ child (__attribute__((unused)) void *param)
if ((rc = pthread_create(&check_thr, &misc_attr, checkerloop, vecs))) {
condlog(0,"failed to create checker loop thread: %d", rc);
goto failed;
- }
+ } else
+ check_thr_started = true;
if ((rc = pthread_create(&uevq_thr, &misc_attr, uevqloop, vecs))) {
condlog(0, "failed to create uevent dispatcher: %d", rc);
goto failed;
- }
+ } else
+ uevq_thr_started = true;
pthread_attr_destroy(&misc_attr);
while (1) {
@@ -3136,22 +3178,7 @@ child (__attribute__((unused)) void *param)
}
}
- pthread_cancel(check_thr);
- pthread_cancel(uevent_thr);
- pthread_cancel(uxlsnr_thr);
- pthread_cancel(uevq_thr);
- if (poll_dmevents)
- pthread_cancel(dmevent_thr);
-
- pthread_join(check_thr, NULL);
- pthread_join(uevent_thr, NULL);
- pthread_join(uxlsnr_thr, NULL);
- pthread_join(uevq_thr, NULL);
- if (poll_dmevents)
- pthread_join(dmevent_thr, NULL);
-
- stop_io_err_stat_thread();
-
+ cleanup_threads();
cleanup_vecs();
cleanup_foreign();
cleanup_checkers();
@@ -3178,7 +3205,6 @@ child (__attribute__((unused)) void *param)
conf = rcu_dereference(multipath_conf);
rcu_assign_pointer(multipath_conf, NULL);
call_rcu(&conf->rcu, rcu_free_config);
- pthread_attr_destroy(&waiter_attr);
#ifdef _DEBUG_
dbg_free_final(NULL);
#endif
--
2.17.2

104
0045-multipath-make-flushing-maps-work-like-other-command.patch
View File

@ -1,104 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:07:04 -0500
Subject: [PATCH] multipath: make flushing maps work like other commands
The config structure doesn't need a special variable just for removes.
Multipath can just use the cmd variable, like it does for the other
commands.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.h | 3 ++-
libmultipath/configure.h | 3 ---
multipath/main.c | 20 ++++++++++----------
3 files changed, 12 insertions(+), 14 deletions(-)
diff --git a/libmultipath/config.h b/libmultipath/config.h
index ceecff2d..55569360 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -38,6 +38,8 @@ enum mpath_cmds {
CMD_ADD_WWID,
CMD_USABLE_PATHS,
CMD_DUMP_CONFIG,
+ CMD_FLUSH_ONE,
+ CMD_FLUSH_ALL,
};
enum force_reload_types {
@@ -142,7 +144,6 @@ struct config {
unsigned int max_checkint;
bool use_watchdog;
int pgfailback;
- int remove;
int rr_weight;
int no_path_retry;
int user_friendly_names;
diff --git a/libmultipath/configure.h b/libmultipath/configure.h
index d7509000..0e33bf40 100644
--- a/libmultipath/configure.h
+++ b/libmultipath/configure.h
@@ -45,9 +45,6 @@ enum {
CP_RETRY,
};
-#define FLUSH_ONE 1
-#define FLUSH_ALL 2
-
struct vectors;
int setup_map (struct multipath * mpp, char * params, int params_size,
diff --git a/multipath/main.c b/multipath/main.c
index d89f0a91..101fd656 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -909,10 +909,10 @@ main (int argc, char *argv[])
cmd = CMD_DRY_RUN;
break;
case 'f':
- conf->remove = FLUSH_ONE;
+ cmd = CMD_FLUSH_ONE;
break;
case 'F':
- conf->remove = FLUSH_ALL;
+ cmd = CMD_FLUSH_ALL;
break;
case 'l':
if (optarg && !strncmp(optarg, "l", 1))
@@ -1053,6 +1053,10 @@ main (int argc, char *argv[])
condlog(0, "the -w option requires a device");
goto out;
}
+ if (cmd == CMD_FLUSH_ONE && dev_type != DEV_DEVMAP) {
+ condlog(0, "the -f option requires a map name to remove");
+ goto out;
+ }
switch(delegate_to_multipathd(cmd, dev, dev_type, conf)) {
case DELEGATE_OK:
@@ -1086,16 +1090,12 @@ main (int argc, char *argv[])
}
if (retries < 0)
retries = conf->remove_retries;
- if (conf->remove == FLUSH_ONE) {
- if (dev_type == DEV_DEVMAP) {
- r = dm_suspend_and_flush_map(dev, retries) ?
- RTVL_FAIL : RTVL_OK;
- } else
- condlog(0, "must provide a map name to remove");
-
+ if (cmd == CMD_FLUSH_ONE) {
+ r = dm_suspend_and_flush_map(dev, retries) ?
+ RTVL_FAIL : RTVL_OK;
goto out;
}
- else if (conf->remove == FLUSH_ALL) {
+ else if (cmd == CMD_FLUSH_ALL) {
r = dm_flush_maps(1, retries) ? RTVL_FAIL : RTVL_OK;
goto out;
}
--
2.17.2

56
0045-multipathd-move-conf-destruction-into-separate-funct.patch Normal file
View File

@ -0,0 +1,56 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 12:38:50 +0200
Subject: [PATCH] multipathd: move conf destruction into separate function
Also removing the comment about dlog() and dm_write_log().
dlog() can cope with get_multipath_config() returning NULL,
and dm_write_log() hasn't accessed the configuration for a while.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 9eb658d4..07973e85 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -2892,6 +2892,16 @@ set_oom_adj (void)
condlog(0, "couldn't adjust oom score");
}
+static void cleanup_conf(void) {
+ struct config *conf;
+
+ conf = rcu_dereference(multipath_conf);
+ if (!conf)
+ return;
+ rcu_assign_pointer(multipath_conf, NULL);
+ call_rcu(&conf->rcu, rcu_free_config);
+}
+
static void cleanup_maps(struct vectors *vecs)
{
int queue_without_daemon, i;
@@ -3196,15 +3206,7 @@ child (__attribute__((unused)) void *param)
if (logsink == 1)
log_thread_stop();
-
- /*
- * Freeing config must be done after condlog() and dm_lib_exit(),
- * because logging functions like dlog() and dm_write_log()
- * reference the config.
- */
- conf = rcu_dereference(multipath_conf);
- rcu_assign_pointer(multipath_conf, NULL);
- call_rcu(&conf->rcu, rcu_free_config);
+ cleanup_conf();
#ifdef _DEBUG_
dbg_free_final(NULL);
#endif
--
2.17.2

64
0046-multipath-delegate-flushing-maps-to-multipathd.patch
View File

@ -1,64 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:07:05 -0500
Subject: [PATCH] multipath: delegate flushing maps to multipathd
Since there can be problems with removing maps outside of multipathd,
multipath should attempt to delegate this command to multipathd.
However, multipathd doesn't attempt to suspend the device, in order
to avoid potential hangs. If delegating to multipathd fails, multipath
should try the remove itself.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 14 ++++++++++++++
multipath/multipath.8 | 4 ++--
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/multipath/main.c b/multipath/main.c
index 101fd656..6a24e483 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -820,6 +820,20 @@ int delegate_to_multipathd(enum mpath_cmds cmd,
if (cmd == CMD_CREATE && conf->force_reload == FORCE_RELOAD_YES) {
p += snprintf(p, n, "reconfigure");
}
+ else if (cmd == CMD_FLUSH_ONE && dev && dev_type == DEV_DEVMAP) {
+ p += snprintf(p, n, "del map %s", dev);
+ /* multipathd doesn't try as hard, to avoid potentially
+ * hanging. If it fails, retry with the regular multipath
+ * command */
+ r = NOT_DELEGATED;
+ }
+ else if (cmd == CMD_FLUSH_ALL) {
+ p += snprintf(p, n, "del maps");
+ /* multipathd doesn't try as hard, to avoid potentially
+ * hanging. If it fails, retry with the regular multipath
+ * command */
+ r = NOT_DELEGATED;
+ }
/* Add other translations here */
if (strlen(command) == 0)
diff --git a/multipath/multipath.8 b/multipath/multipath.8
index 6fb8645a..5b29a5d9 100644
--- a/multipath/multipath.8
+++ b/multipath/multipath.8
@@ -125,11 +125,11 @@ the system.
Other operation modes are chosen by using one of the following command line switches:
.TP
.B \-f
-Flush (remove) a multipath device map specified as parameter, if unused.
+Flush (remove) a multipath device map specified as parameter, if unused. This operation is delegated to the multipathd daemon if it's running.
.
.TP
.B \-F
-Flush (remove) all unused multipath device maps.
+Flush (remove) all unused multipath device maps. This operation is delegated to the multipathd daemon if it's running.
.
.TP
.B \-l
--
2.17.2

42
0046-multipathd-move-pid-destruction-into-separate-functi.patch Normal file
View File

@ -0,0 +1,42 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 16:10:19 +0200
Subject: [PATCH] multipathd: move pid destruction into separate function
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 07973e85..fc1f8d7f 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -2892,6 +2892,12 @@ set_oom_adj (void)
condlog(0, "couldn't adjust oom score");
}
+static void cleanup_pidfile(void)
+{
+ condlog(3, "unlink pidfile");
+ unlink(DEFAULT_PIDFILE);
+}
+
static void cleanup_conf(void) {
struct config *conf;
@@ -3199,9 +3205,7 @@ child (__attribute__((unused)) void *param)
dm_lib_exit();
/* We're done here */
- condlog(3, "unlink pidfile");
- unlink(DEFAULT_PIDFILE);
-
+ cleanup_pidfile();
condlog(2, "--------shut down-------");
if (logsink == 1)
--
2.17.2

63
0047-multipath-add-option-to-skip-multipathd-delegation.patch
View File

@ -1,63 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 2 Jul 2020 19:07:06 -0500
Subject: [PATCH] multipath: add option to skip multipathd delegation
Add the -D option to allow users to skip delegating commands to
multipathd.
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.h | 1 +
multipath/main.c | 8 +++++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/libmultipath/config.h b/libmultipath/config.h
index 55569360..92c61a0d 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -190,6 +190,7 @@ struct config {
int ghost_delay;
int find_multipaths_timeout;
int marginal_pathgroups;
+ int skip_delegate;
unsigned int version[3];
unsigned int sequence_nr;
diff --git a/multipath/main.c b/multipath/main.c
index 6a24e483..4c43314e 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -817,6 +817,9 @@ int delegate_to_multipathd(enum mpath_cmds cmd,
*p = '\0';
n = sizeof(command);
+ if (conf->skip_delegate)
+ return NOT_DELEGATED;
+
if (cmd == CMD_CREATE && conf->force_reload == FORCE_RELOAD_YES) {
p += snprintf(p, n, "reconfigure");
}
@@ -890,7 +893,7 @@ main (int argc, char *argv[])
multipath_conf = conf;
conf->retrigger_tries = 0;
conf->force_sync = 1;
- while ((arg = getopt(argc, argv, ":adcChl::eFfM:v:p:b:BrR:itTquUwW")) != EOF ) {
+ while ((arg = getopt(argc, argv, ":adDcChl::eFfM:v:p:b:BrR:itTquUwW")) != EOF ) {
switch(arg) {
case 1: printf("optarg : %s\n",optarg);
break;
@@ -922,6 +925,9 @@ main (int argc, char *argv[])
if (cmd == CMD_CREATE)
cmd = CMD_DRY_RUN;
break;
+ case 'D':
+ conf->skip_delegate = 1;
+ break;
case 'f':
cmd = CMD_FLUSH_ONE;
break;
--
2.17.2

45
0047-multipathd-close-pidfile-on-exit.patch Normal file
View File

@ -0,0 +1,45 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 16:27:33 +0200
Subject: [PATCH] multipathd: close pidfile on exit
It seems we've been doing this only in the failure case, for ages.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index fc1f8d7f..f6b80668 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -132,6 +132,7 @@ static pthread_cond_t config_cond;
static pthread_t check_thr, uevent_thr, uxlsnr_thr, uevq_thr, dmevent_thr;
static bool check_thr_started, uevent_thr_started, uxlsnr_thr_started,
uevq_thr_started, dmevent_thr_started;
+static int pid_fd = -1;
static inline enum daemon_status get_running_state(void)
{
@@ -2894,6 +2895,8 @@ set_oom_adj (void)
static void cleanup_pidfile(void)
{
+ if (pid_fd >= 0)
+ close(pid_fd);
condlog(3, "unlink pidfile");
unlink(DEFAULT_PIDFILE);
}
@@ -3027,7 +3030,6 @@ child (__attribute__((unused)) void *param)
pthread_attr_t log_attr, misc_attr, uevent_attr;
struct vectors * vecs;
int rc;
- int pid_fd = -1;
struct config *conf;
char *envp;
enum daemon_status state;
--
2.17.2

44
0048-libmultipath-add-device-to-hwtable.c.patch
View File

@ -1,44 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Steve Schremmer <steve.schremmer@netapp.com>
Date: Mon, 6 Jul 2020 20:22:35 +0000
Subject: [PATCH] libmultipath: add device to hwtable.c
Add FUJITSU ETERNUS_AHB defaults.
Signed-off-by: Steve Schremmer <steve.schremmer@netapp.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index d1fcfdb3..d680bdfc 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -428,6 +428,22 @@ static struct hwentry default_hw[] = {
.pgpolicy = MULTIBUS,
.no_path_retry = 10,
},
+ {
+ /*
+ * ETERNUS AB/HB
+ * Maintainer: NetApp RDAC team <ng-eseries-upstream-maintainers@netapp.com>
+ */
+ .vendor = "FUJITSU",
+ .product = "ETERNUS_AHB",
+ .bl_product = "Universal Xport",
+ .pgpolicy = GROUP_BY_PRIO,
+ .checker_name = RDAC,
+ .features = "2 pg_init_retries 50",
+ .hwhandler = "1 rdac",
+ .prio_name = PRIO_RDAC,
+ .pgfailback = -FAILBACK_IMMEDIATE,
+ .no_path_retry = 30,
+ },
/*
* Hitachi Vantara
*
--
2.17.2

60
0048-multipathd-add-helper-for-systemd-notification-at-ex.patch Normal file
View File

@ -0,0 +1,60 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 17:49:02 +0200
Subject: [PATCH] multipathd: add helper for systemd notification at exit
Add sd_notify_exit().
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index f6b80668..07068e4a 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -3024,6 +3024,17 @@ static void cleanup_rcu(void)
rcu_unregister_thread();
}
+static int sd_notify_exit(int err)
+{
+#ifdef USE_SYSTEMD
+ char msg[24];
+
+ snprintf(msg, sizeof(msg), "ERRNO=%d", err);
+ sd_notify(0, msg);
+#endif
+ return err;
+}
+
static int
child (__attribute__((unused)) void *param)
{
@@ -3216,19 +3227,12 @@ child (__attribute__((unused)) void *param)
#ifdef _DEBUG_
dbg_free_final(NULL);
#endif
-
-#ifdef USE_SYSTEMD
- sd_notify(0, "ERRNO=0");
-#endif
- exit(0);
+ exit(sd_notify_exit(0));
failed:
-#ifdef USE_SYSTEMD
- sd_notify(0, "ERRNO=1");
-#endif
if (pid_fd >= 0)
close(pid_fd);
- exit(1);
+ exit(sd_notify_exit(1));
}
static int
--
2.17.2

84
0049-master-libmultipath-fix-use-after-free-when-iscsi-lo.patch
View File

@ -1,84 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: lixiaokeng <lixiaokeng@huawei.com>
Date: Mon, 13 Jul 2020 13:07:40 +0200
Subject: [PATCH] master - libmultipath: fix use after free when iscsi logs in
When two iscsi ips log in and out alternately and the following scripts run
at the same time,
#!/bin/bash
interval=5
while true
do
iscsiadm -m node -p 9.41.147.171 &> /dev/null
iscsiadm -m node -p 9.41.148.172 &> /dev/null
iscsiadm -m session &> /dev/null
rescan-scsi-bus.sh &> /dev/null
multipath -v2 &> /dev/null
multipath -ll &> /dev/null
sleep $interval
done
multipathd will have a segfault after about 30 mins.
The reason is that mpp->hwe is accessed after hwe is already freed. In
extract_hwe_from_path func, mpp->hwe is set to pp->hwe, so they points to the
same hwe. For some reasons, pp->mpp will be set to NULL in orphan_path func.
Then, pp and hwe will be freed with (pp->mpp == NULL) in free_path func
called by ev_remove_path func. However, mpp->hwe is not set to NULL while hwe
is already freed. So, when iscsi device logs in and new path is added to mpp,
mpp->hwe will be accessed in select_pgfailback func. Finally, use-after-free
problem occurs.
The procedure details given as follows,
1.wait_dmevents thread
wait_dmevents
->dmevent_loop
->update_multipath
->__setup_multipath
->update_multipath_strings
-> sync_paths
->orphan_path
2.uevqloop thread (iscsi log out, remove path)
uevqloop
->uevent_dispatch
->service_uevq
->uev_remove_path
->ev_remove_path //pp->mpp is NULL
->free_path(pp)
//pp->hew are freed but mpp->hwe is not set to NULL
3.ev_remove_path (iscsi log in, add path)
uevqloop
->uevent_dispatch
->service_uevq
->ev_add_path
->select_pgfailback //mpp->hwe is accessed
Here, we will set mpp->hwe to NULL before setting pp->map to NULL in orphan_path
func.
Signed-off-by: Tianxiong Lu <lutianxiong@huawei.com>
Signed-off-by: lixiaokeng <lixiaokeng@huawei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/structs_vec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
index 8137ea21..430eaad7 100644
--- a/libmultipath/structs_vec.c
+++ b/libmultipath/structs_vec.c
@@ -93,6 +93,8 @@ int adopt_paths(vector pathvec, struct multipath *mpp)
void orphan_path(struct path *pp, const char *reason)
{
condlog(3, "%s: orphan path, %s", pp->dev, reason);
+ if (pp->mpp && pp->mpp->hwe == pp->hwe)
+ pp->mpp->hwe = NULL;
pp->mpp = NULL;
pp->dmstate = PSTATE_UNDEF;
pp->uid_attribute = NULL;
--
2.17.2

52
0049-multipathd-child-call-cleanups-in-failure-case-too.patch Normal file
View File

@ -0,0 +1,52 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 17:57:16 +0200
Subject: [PATCH] multipathd: child(): call cleanups in failure case, too
So far we haven't called any cleanup code if child() failed.
Fix it.
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/multipathd/main.c b/multipathd/main.c
index 07068e4a..6b9e323e 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -3044,6 +3044,7 @@ child (__attribute__((unused)) void *param)
struct config *conf;
char *envp;
enum daemon_status state;
+ int exit_code = 1;
mlockall(MCL_CURRENT | MCL_FUTURE);
signal_init();
@@ -3207,6 +3208,8 @@ child (__attribute__((unused)) void *param)
}
}
+ exit_code = 0;
+failed:
cleanup_threads();
cleanup_vecs();
cleanup_foreign();
@@ -3227,12 +3230,7 @@ child (__attribute__((unused)) void *param)
#ifdef _DEBUG_
dbg_free_final(NULL);
#endif
- exit(sd_notify_exit(0));
-
-failed:
- if (pid_fd >= 0)
- close(pid_fd);
- exit(sd_notify_exit(1));
+ return sd_notify_exit(exit_code);
}
static int
--
2.17.2

33
0050-libmultipath-warn-if-freeing-path-that-holds-mpp-hwe.patch
View File

@ -1,33 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 13 Jul 2020 13:07:41 +0200
Subject: [PATCH] libmultipath: warn if freeing path that holds mpp->hwe
This just adds an error message to the previous patch.
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/structs_vec.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
index 430eaad7..cde4dbe6 100644
--- a/libmultipath/structs_vec.c
+++ b/libmultipath/structs_vec.c
@@ -93,8 +93,11 @@ int adopt_paths(vector pathvec, struct multipath *mpp)
void orphan_path(struct path *pp, const char *reason)
{
condlog(3, "%s: orphan path, %s", pp->dev, reason);
- if (pp->mpp && pp->mpp->hwe == pp->hwe)
+ if (pp->mpp && pp->hwe && pp->mpp->hwe == pp->hwe) {
+ condlog(0, "BUG: orphaning path %s that holds hwe of %s",
+ pp->dev, pp->mpp->alias);
pp->mpp->hwe = NULL;
+ }
pp->mpp = NULL;
pp->dmstate = PSTATE_UNDEF;
pp->uid_attribute = NULL;
--
2.17.2

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