import device-mapper-multipath-0.8.7-7.el9

This commit is contained in:
CentOS Sources 2022-05-17 06:27:14 -04:00 committed by Stepan Oksanichenko
commit b785613d51
47 changed files with 7809 additions and 0 deletions

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067d668de8e3a70b7c176bbf0c0616d5835bbe44 SOURCES/multipath-tools-0.8.7.tgz

1
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SOURCES/multipath-tools-0.8.7.tgz

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Wed, 8 Sep 2021 22:33:54 +0200
Subject: [PATCH] multipath-tools: add info about IO affinity path selector to
manpage
Added in 5.11: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4d2e82b2300b03f66b3ca8417590c86e661fab1
Cc: Mike Christie <michael.christie@oracle.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>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/multipath.conf.5 | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index d6b8c7f6..42a15ffd 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -6,7 +6,7 @@
.\"
.\" ----------------------------------------------------------------------------
.
-.TH MULTIPATH.CONF 5 2018-05-21 Linux
+.TH MULTIPATH.CONF 5 2021-09-08 Linux
.
.
.\" ----------------------------------------------------------------------------
@@ -210,6 +210,10 @@ of outstanding I/O to the path and its relative throughput.
estimation of future service time based on the history of previous I/O submitted
to each path.
.TP
+.I "io-affinity 0"
+(Since 5.11 kernel) Choose the path for the next bunch of I/O based on a CPU to
+path mapping the user passes in and what CPU we are executing on.
+.TP
The default is: \fBservice-time 0\fR
.RE
.

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@ -0,0 +1,52 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: lixiaokeng <lixiaokeng@huawei.com>
Date: Mon, 13 Sep 2021 10:43:14 +0800
Subject: [PATCH] multipathd: fix missing persistent reseravtion for active
path
There are two paths(sucu as sda and adb) for one LUN. The two
paths log in, but before the two uevents have been processed
(for example there are many uevent), users use multipathd add
path /dev/sda to cause mpatha and use mpathpersist -o -I to
register prkey for mpatha. The add map uevent is after add path
uevent, the the uevent(add sdb) will delay and missing persistent
reseravtion check.
Here, we add persistent reseravtion check in update_map() which
is called ev_add_map().
Signed-off-by: Lixiaokeng <lixiaokeng@huawei.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/main.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/multipathd/main.c b/multipathd/main.c
index 3aff241d..1defeaf1 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -490,6 +490,8 @@ update_map (struct multipath *mpp, struct vectors *vecs, int new_map)
{
int retries = 3;
char *params __attribute__((cleanup(cleanup_charp))) = NULL;
+ struct path *pp;
+ int i;
retry:
condlog(4, "%s: updating new map", mpp->alias);
@@ -502,6 +504,15 @@ retry:
verify_paths(mpp);
mpp->action = ACT_RELOAD;
+ if (mpp->prflag) {
+ vector_foreach_slot(mpp->paths, pp, i) {
+ if ((pp->state == PATH_UP) || (pp->state == PATH_GHOST)) {
+ /* persistent reseravtion check*/
+ mpath_pr_event_handle(pp);
+ }
+ }
+ }
+
if (setup_map(mpp, &params, vecs)) {
condlog(0, "%s: failed to setup new map in update", mpp->alias);
retries = -1;

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Thu, 16 Sep 2021 00:44:49 +0200
Subject: [PATCH] multipath-tools: minor fixes to multipath.conf.5 man page
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>
---
multipath/multipath.conf.5 | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 42a15ffd..c74129bd 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -1,9 +1,9 @@
.\" ----------------------------------------------------------------------------
-.\" Update the date below if you make any significant change.
.\" Make sure there are no errors with:
.\" groff -z -wall -b -e -t multipath/multipath.conf.5
.\" man --warnings -E UTF-8 -l -Tutf8 -Z multipath/multipath.conf.5 >/dev/null
.\"
+.\" Update the date below if you make any significant change.
.\" ----------------------------------------------------------------------------
.
.TH MULTIPATH.CONF 5 2021-09-08 Linux
@@ -189,7 +189,7 @@ The default is: \fB<system dependent>\fR
.TP
.B path_selector
The default path selector algorithm to use; they are offered by the
-kernel multipath target. There are three selector algorithms:
+kernel multipath target:
.RS
.TP 12
.I "round-robin 0"
@@ -206,7 +206,7 @@ of outstanding I/O to the path.
of outstanding I/O to the path and its relative throughput.
.TP
.I "historical-service-time 0"
-(Since 5.8 kernel) Choose the path for the next bunch of IOs based on the
+(Since 5.8 kernel) Choose the path for the next bunch of I/O based on the
estimation of future service time based on the history of previous I/O submitted
to each path.
.TP

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Sat, 25 Sep 2021 00:27:36 +0200
Subject: [PATCH] multipath-tools: make IBM/XIV config work with alua and
multibus
And add recommended pgfailback value.
ALUA is supported since XIV_Gen2 and microcode 10.2.1
(All ports across all controllers in single Target Port Group)
https://www.ibm.com/support/pages/ibm-flashsystem%C2%AE-a9000-and-a9000r-hyperswap-solution-deployment-linux%C2%AE-ibm-z-systems%C2%AE
https://www.google.com/search?q=%222810XIV%22+%22path_grouping_policy%22+site%3Aibm.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>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 0caac0da..72f81c60 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -712,7 +712,8 @@ static struct hwentry default_hw[] = {
.vendor = "(XIV|IBM)",
.product = "(NEXTRA|2810XIV)",
.no_path_retry = NO_PATH_RETRY_QUEUE,
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
+ .pgfailback = 15,
},
{
/* TMS RamSan / FlashSystem 710/720/810/820/840/900 */

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@ -0,0 +1,32 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Luca BRUNO <luca.bruno@coreos.com>
Date: Fri, 24 Sep 2021 09:34:01 +0000
Subject: [PATCH] multipathd.socket: add missing conditions from service unit
This aligns 'multipathd' socket and service units, by adding the
start conditions that are set on the service but not on the socket.
It should help avoiding situations where the socket unit ends up
marked as failed after hitting its retry-limit.
Fixes: https://github.com/opensvc/multipath-tools/issues/15
Signed-off-by: Luca BRUNO <luca.bruno@coreos.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipathd/multipathd.socket | 3 +++
1 file changed, 3 insertions(+)
diff --git a/multipathd/multipathd.socket b/multipathd/multipathd.socket
index 0ed4a1f7..c777e5e3 100644
--- a/multipathd/multipathd.socket
+++ b/multipathd/multipathd.socket
@@ -1,6 +1,9 @@
[Unit]
Description=multipathd control socket
DefaultDependencies=no
+ConditionKernelCommandLine=!nompath
+ConditionKernelCommandLine=!multipath=off
+ConditionVirtualization=!container
Before=sockets.target
[Socket]

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Tue, 28 Sep 2021 18:52:10 +0200
Subject: [PATCH] multipath-tools: make IBM/2107900 (DS8000) config work with
alua and multibus
ALUA is supported since the beginning:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/scsi/device_handler/scsi_dh_alua.c?id=057ea7c9683c3d684128cced796f03c179ecf1c2#n683
... the DS8000 is an Asymmetric Logical Unit Access (ALUA) capable storage array,
pag#160(144): https://www.redbooks.ibm.com/redbooks/pdfs/sg248887.pdf
kernel log:
https://marc.info/?l=linux-scsi&m=156407413807511&q=mbox
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>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 72f81c60..f115c4f9 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -656,7 +656,8 @@ static struct hwentry default_hw[] = {
.vendor = "IBM",
.product = "^2107900",
.no_path_retry = NO_PATH_RETRY_QUEUE,
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
+ .pgfailback = -FAILBACK_IMMEDIATE,
},
{
// Storwize V5000 and V7000 lines / SAN Volume Controller (SVC) / Flex System V7000 /

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Tue, 28 Sep 2021 19:20:59 +0200
Subject: [PATCH] multipath-tools: make EMC/SYMMETRIX config work with alua and
multibus
ALUA is supported since VMAX3 and HYPERMAX OS 5977.811.784, pag#113:
https://www.delltechnologies.com/en-us/collaterals/unauth/technical-guides-support-information/products/storage-2/docu5128.pdf
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>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index f115c4f9..7095aaf1 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -329,8 +329,9 @@ static struct hwentry default_hw[] = {
/* Symmetrix / DMX / VMAX / PowerMax */
.vendor = "EMC",
.product = "SYMMETRIX",
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
.no_path_retry = 6,
+ .pgfailback = -FAILBACK_IMMEDIATE,
},
{
/* DGC CLARiiON CX/AX / VNX and Unity */

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@ -0,0 +1,37 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Tue, 28 Sep 2021 19:31:21 +0200
Subject: [PATCH] multipath-tools: make EMC/Invista config work with alua and
multibus
Optimal Path Management (OPM) was introduced with VPLEX 5.5 to improve VPLEX
performance. OPM uses the ALUA mechanism to spread the I/O load across VPLEX directors
while gaining cache locality, pag #187:
https://www.delltechnologies.com/en-us/collaterals/unauth/technical-guides-support-information/products/storage-2/docu5128.pdf
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>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 7095aaf1..4e8b52ff 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -350,8 +350,9 @@ static struct hwentry default_hw[] = {
.vendor = "EMC",
.product = "Invista",
.bl_product = "LUNZ",
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
.no_path_retry = 5,
+ .pgfailback = -FAILBACK_IMMEDIATE,
},
{
/* XtremIO */

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@ -0,0 +1,35 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Tue, 28 Sep 2021 22:15:56 +0200
Subject: [PATCH] multipath-tools: make "COMPELNT/Compellent Vol" config work
with alua and multibus
ALUA is needed by SAS arrays, pag#124:
https://downloads.dell.com/manuals/all-products/esuprt_solutions_int/esuprt_solutions_int_solutions_resources/general-solution-resources_white-papers2_en-us.pdf
Cc: Sean McGinnis <sean_mcginnis@dell.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>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 4e8b52ff..7fc5bc04 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -368,7 +368,8 @@ static struct hwentry default_hw[] = {
*/
.vendor = "COMPELNT",
.product = "Compellent Vol",
- .pgpolicy = MULTIBUS,
+ .pgpolicy = GROUP_BY_PRIO,
+ .pgfailback = -FAILBACK_IMMEDIATE,
.no_path_retry = NO_PATH_RETRY_QUEUE,
},
{

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Tue, 28 Sep 2021 22:39:17 +0200
Subject: [PATCH] multipath-tools: remove Compellent maintainer
e-mail was bounced: 550 5.1.1 User Unknown
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>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 7fc5bc04..763982cd 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -361,11 +361,7 @@ static struct hwentry default_hw[] = {
.pgpolicy = MULTIBUS,
},
{
- /*
- * SC Series, formerly Compellent
- *
- * Maintainer: Sean McGinnis <sean_mcginnis@dell.com>
- */
+ /* SC Series, formerly Compellent */
.vendor = "COMPELNT",
.product = "Compellent Vol",
.pgpolicy = GROUP_BY_PRIO,

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 20 Oct 2021 20:44:54 +0200
Subject: [PATCH] Revert "multipath-tools: make EMC/Invista config work with
alua and multibus"
This reverts commit 309ff281aaa07e862540d3d645a8263f3e9baaed.
Mail from <Wayne.Berthiaume@dell.com>, 20210930:
"OPM is no longer supported in the Dell VPLEX product. If we at Dell had
wished to change the default device stanzas for any of our products they
would have been done when the product and/or feature is released.
Please remove this patch as well. It is not needed."
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 763982cd..211087ad 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -350,9 +350,8 @@ static struct hwentry default_hw[] = {
.vendor = "EMC",
.product = "Invista",
.bl_product = "LUNZ",
- .pgpolicy = GROUP_BY_PRIO,
+ .pgpolicy = MULTIBUS,
.no_path_retry = 5,
- .pgfailback = -FAILBACK_IMMEDIATE,
},
{
/* XtremIO */

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@ -0,0 +1,38 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 20 Oct 2021 20:46:09 +0200
Subject: [PATCH] Revert "multipath-tools: make EMC/SYMMETRIX config work with
alua and multibus"
This reverts commit 831af0dbfa171cd39d968ba6174669f11a278be9.
Mail from "berthiaume, wayne" <Wayne.Berthiaume@dell.com>, 210930:
"As a representative of Dell I request this patch be withdrawn. If we had
wanted the default stanza changed we would have already implemented it.
Also for your information we only advertise the entire enterprise storage
product line (DMX, VMAX, VMAX AFA, PowerMax) as SYMMETRIX in the VPD page.
The ALUA capability is only used for mobility devices in an SRDF/Metro
configuration and the current device stanza still works well in all of our
testing."
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/hwtable.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 211087ad..a8ba28e3 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -329,9 +329,8 @@ static struct hwentry default_hw[] = {
/* Symmetrix / DMX / VMAX / PowerMax */
.vendor = "EMC",
.product = "SYMMETRIX",
- .pgpolicy = GROUP_BY_PRIO,
+ .pgpolicy = MULTIBUS,
.no_path_retry = 6,
- .pgfailback = -FAILBACK_IMMEDIATE,
},
{
/* DGC CLARiiON CX/AX / VNX and Unity */

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@ -0,0 +1,63 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 13 Apr 2017 07:22:23 -0500
Subject: [PATCH] RH: fixup udev rules for redhat
The multipath rules need to run after scsi_id is run. This means moving
them after 60-persistent-storage.rules for redhat. Redhat also uses a
different naming scheme for partitions than SuSE.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile.inc | 2 +-
kpartx/kpartx.rules | 2 +-
multipath/Makefile | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/Makefile.inc b/Makefile.inc
index d0ec9b44..2a75dc9c 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -55,7 +55,7 @@ endif
prefix =
exec_prefix = $(prefix)
usr_prefix = $(prefix)
-bindir = $(exec_prefix)/sbin
+bindir = $(exec_prefix)/usr/sbin
libudevdir = $(prefix)/$(SYSTEMDPATH)/udev
udevrulesdir = $(libudevdir)/rules.d
multipathdir = $(TOPDIR)/libmultipath
diff --git a/kpartx/kpartx.rules b/kpartx/kpartx.rules
index d7527d7d..0e0d70d5 100644
--- a/kpartx/kpartx.rules
+++ b/kpartx/kpartx.rules
@@ -36,6 +36,6 @@ LABEL="mpath_kpartx_end"
GOTO="kpartx_end"
LABEL="run_kpartx"
-RUN+="/sbin/kpartx -un -p -part /dev/$name"
+RUN+="/sbin/kpartx -un /dev/$name"
LABEL="kpartx_end"
diff --git a/multipath/Makefile b/multipath/Makefile
index 0828a8f7..b9bbb3cf 100644
--- a/multipath/Makefile
+++ b/multipath/Makefile
@@ -24,7 +24,7 @@ install:
$(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir)/
$(INSTALL_PROGRAM) -d $(DESTDIR)$(udevrulesdir)
$(INSTALL_PROGRAM) -m 644 11-dm-mpath.rules $(DESTDIR)$(udevrulesdir)
- $(INSTALL_PROGRAM) -m 644 $(EXEC).rules $(DESTDIR)$(libudevdir)/rules.d/56-multipath.rules
+ $(INSTALL_PROGRAM) -m 644 $(EXEC).rules $(DESTDIR)$(libudevdir)/rules.d/62-multipath.rules
$(INSTALL_PROGRAM) -d $(DESTDIR)$(man8dir)
$(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(man8dir)
$(INSTALL_PROGRAM) -d $(DESTDIR)$(man5dir)
@@ -33,7 +33,7 @@ install:
uninstall:
$(RM) $(DESTDIR)$(bindir)/$(EXEC)
$(RM) $(DESTDIR)$(udevrulesdir)/11-dm-mpath.rules
- $(RM) $(DESTDIR)$(libudevdir)/rules.d/56-multipath.rules
+ $(RM) $(DESTDIR)$(libudevdir)/rules.d/62-multipath.rules
$(RM) $(DESTDIR)$(man8dir)/$(EXEC).8.gz
$(RM) $(DESTDIR)$(man5dir)/$(EXEC).conf.5.gz

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@ -0,0 +1,101 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 2 Jul 2014 12:49:53 -0500
Subject: [PATCH] RH: Remove the property blacklist exception builtin
Multipath set the default property blacklist exceptions to
(ID_SCSI_VPD|ID_WWN). This has the effect of blacklisting some internal
devices. These devices may never have multiple paths, but it is nice
to be able to set multipath up on them all the same. This patch simply
removes the default, and makes it so that if no property
blacklist_exception is given, then devices aren't failed for not matching
it.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/blacklist.c | 6 ++----
multipath/multipath.conf.5 | 11 ++++++-----
tests/blacklist.c | 7 ++-----
3 files changed, 10 insertions(+), 14 deletions(-)
diff --git a/libmultipath/blacklist.c b/libmultipath/blacklist.c
index 4e315c97..1e463ef6 100644
--- a/libmultipath/blacklist.c
+++ b/libmultipath/blacklist.c
@@ -202,9 +202,6 @@ setup_default_blist (struct config * conf)
if (store_ble(conf->blist_devnode, "!^(sd[a-z]|dasd[a-z]|nvme[0-9])", ORIGIN_DEFAULT))
return 1;
- if (store_ble(conf->elist_property, "(SCSI_IDENT_|ID_WWN)", ORIGIN_DEFAULT))
- return 1;
-
vector_foreach_slot (conf->hwtable, hwe, i) {
if (hwe->bl_product) {
if (find_blacklist_device(conf->blist_device,
@@ -410,7 +407,8 @@ filter_property(const struct config *conf, struct udev_device *udev,
*uid_attribute != '\0';
bool uid_attr_seen = false;
- r = MATCH_PROPERTY_BLIST_MISSING;
+ if (VECTOR_SIZE(conf->elist_property))
+ r = MATCH_PROPERTY_BLIST_MISSING;
udev_list_entry_foreach(list_entry,
udev_device_get_properties_list_entry(udev)) {
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index c74129bd..dd9f4dc7 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -1351,9 +1351,14 @@ keywords. Both are regular expressions. For a full description of these keywords
Regular expression for an udev property. All
devices that have matching udev properties will be excluded/included.
The handling of the \fIproperty\fR keyword is special,
-because devices \fBmust\fR have at least one whitelisted udev property;
+because if a property blacklist_exception is set, devices \fBmust\fR have at
+least one whitelisted udev property;
otherwise they're treated as blacklisted, and the message
"\fIblacklisted, udev property missing\fR" is displayed in the logs.
+For example, setting the property blacklist_exception to
+\fB(SCSI_IDENT_|ID_WWN)\fR, will cause well-behaved SCSI devices and devices
+that provide a WWN (World Wide Number) to be included, and all others to be
+excluded. This works to exclude most non-multipathable devices.
.
.RS
.PP
@@ -1364,10 +1369,6 @@ Blacklisting by missing properties is only applied to devices which do have the
property specified by \fIuid_attribute\fR (e.g. \fIID_SERIAL\fR)
set. Previously, it was applied to every device, possibly causing devices to be
blacklisted because of temporary I/O error conditions.
-.PP
-The default \fIblacklist exception\fR is: \fB(SCSI_IDENT_|ID_WWN)\fR, causing
-well-behaved SCSI devices and devices that provide a WWN (World Wide Number)
-to be included, and all others to be excluded.
.RE
.TP
.B protocol
diff --git a/tests/blacklist.c b/tests/blacklist.c
index 882aa3a1..6a22b660 100644
--- a/tests/blacklist.c
+++ b/tests/blacklist.c
@@ -375,9 +375,8 @@ static void test_property_missing(void **state)
{
static struct udev_device udev = { "sdb", { "ID_FOO", "ID_BAZ", "ID_BAR", "ID_SERIAL", NULL } };
conf.blist_property = blist_property_wwn;
- expect_condlog(3, "sdb: blacklisted, udev property missing\n");
assert_int_equal(filter_property(&conf, &udev, 3, "ID_SERIAL"),
- MATCH_PROPERTY_BLIST_MISSING);
+ MATCH_NOTHING);
assert_int_equal(filter_property(&conf, &udev, 3, "ID_BLAH"),
MATCH_NOTHING);
assert_int_equal(filter_property(&conf, &udev, 3, ""),
@@ -469,9 +468,7 @@ static void test_filter_path_missing1(void **state)
conf.blist_device = blist_device_foo_bar;
conf.blist_protocol = blist_protocol_fcp;
conf.blist_wwid = blist_wwid_xyzzy;
- expect_condlog(3, "sdb: blacklisted, udev property missing\n");
- assert_int_equal(filter_path(&conf, &miss1_pp),
- MATCH_PROPERTY_BLIST_MISSING);
+ assert_int_equal(filter_path(&conf, &miss1_pp), MATCH_NOTHING);
}
/* This one matches the property whitelist, to test the other missing

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@ -0,0 +1,107 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 15 Oct 2014 10:39:30 -0500
Subject: [PATCH] RH: don't start without a config file
If /etc/multipath.conf doesn't exist, don't start multipathd and blacklist
all devices when running multipath. A completely blank configuration file
is almost never what users want. Also, people may have the multipath
packages installed but don't want to use them. This patch provides a
simple way to disable multipath. Simply removing or renaming
/etc/multipath.conf will keep multipath from doing anything.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.c | 13 +++++++++++++
libmultipath/config.h | 1 +
multipath/multipath.rules | 1 +
multipathd/multipathd.8 | 2 ++
multipathd/multipathd.service | 1 +
multipathd/multipathd.socket | 1 +
6 files changed, 19 insertions(+)
diff --git a/libmultipath/config.c b/libmultipath/config.c
index 30046a17..5f35c3d3 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -895,6 +895,19 @@ int _init_config (const char *file, struct config *conf)
goto out;
}
factorize_hwtable(conf->hwtable, builtin_hwtable_size, file);
+ } else {
+ condlog(0, "/etc/multipath.conf does not exist, blacklisting all devices.");
+ if (conf->blist_devnode == NULL) {
+ conf->blist_devnode = vector_alloc();
+ if (!conf->blist_devnode) {
+ condlog(0, "cannot allocate blacklist\n");
+ goto out;
+ }
+ }
+ if (store_ble(conf->blist_devnode, ".*", ORIGIN_NO_CONFIG)) {
+ condlog(0, "cannot store default no-config blacklist\n");
+ goto out;
+ }
}
conf->processed_main_config = 1;
diff --git a/libmultipath/config.h b/libmultipath/config.h
index 933fe0d1..5f01c1fc 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -9,6 +9,7 @@
#define ORIGIN_DEFAULT 0
#define ORIGIN_CONFIG 1
+#define ORIGIN_NO_CONFIG 2
enum devtypes {
DEV_NONE,
diff --git a/multipath/multipath.rules b/multipath/multipath.rules
index 9df11a95..0486bf70 100644
--- a/multipath/multipath.rules
+++ b/multipath/multipath.rules
@@ -9,6 +9,7 @@ IMPORT{cmdline}="nompath"
ENV{nompath}=="?*", GOTO="end_mpath"
IMPORT{cmdline}="multipath"
ENV{multipath}=="off", GOTO="end_mpath"
+TEST!="/etc/multipath.conf", GOTO="end_mpath"
ENV{DEVTYPE}!="partition", GOTO="test_dev"
IMPORT{parent}="DM_MULTIPATH_DEVICE_PATH"
diff --git a/multipathd/multipathd.8 b/multipathd/multipathd.8
index 048a838d..8bd47a80 100644
--- a/multipathd/multipathd.8
+++ b/multipathd/multipathd.8
@@ -39,6 +39,8 @@ map regains its maximum performance and redundancy.
This daemon executes the external \fBmultipath\fR tool when events occur.
In turn, the multipath tool signals the multipathd daemon when it is done with
devmap reconfiguration, so that it can refresh its failed path list.
+
+In this Linux distribution, multipathd does not run unless a /etc/multipath.conf file exists.
.
.
.\" ----------------------------------------------------------------------------
diff --git a/multipathd/multipathd.service b/multipathd/multipathd.service
index 0b2ac814..6d57c7e8 100644
--- a/multipathd/multipathd.service
+++ b/multipathd/multipathd.service
@@ -4,6 +4,7 @@ Wants=systemd-udev-trigger.service systemd-udev-settle.service
Before=iscsi.service iscsid.service lvm2-activation-early.service
Before=local-fs-pre.target blk-availability.service shutdown.target
After=multipathd.socket systemd-udev-trigger.service systemd-udev-settle.service
+ConditionPathExists=/etc/multipath.conf
DefaultDependencies=no
Conflicts=shutdown.target
ConditionKernelCommandLine=!nompath
diff --git a/multipathd/multipathd.socket b/multipathd/multipathd.socket
index c777e5e3..3c20a2ff 100644
--- a/multipathd/multipathd.socket
+++ b/multipathd/multipathd.socket
@@ -1,6 +1,7 @@
[Unit]
Description=multipathd control socket
DefaultDependencies=no
+ConditionPathExists=/etc/multipath.conf
ConditionKernelCommandLine=!nompath
ConditionKernelCommandLine=!multipath=off
ConditionVirtualization=!container

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@ -0,0 +1,26 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 25 Jan 2019 14:54:56 -0600
Subject: [PATCH] RH: Fix nvme function missing argument
A future patch will change the compilation options to error when
function declarations have unspecified arguments.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/nvme/argconfig.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/nvme/argconfig.h b/libmultipath/nvme/argconfig.h
index adb192b6..bfd10ef8 100644
--- a/libmultipath/nvme/argconfig.h
+++ b/libmultipath/nvme/argconfig.h
@@ -76,7 +76,7 @@ struct argconfig_commandline_options {
extern "C" {
#endif
-typedef void argconfig_help_func();
+typedef void argconfig_help_func(void);
void argconfig_append_usage(const char *str);
void argconfig_print_help(const char *program_desc,
const struct argconfig_commandline_options *options);

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@ -0,0 +1,66 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 19 Apr 2017 06:10:01 -0500
Subject: [PATCH] RH: use rpm optflags if present
Use the passed in optflags when compiling as an RPM, and keep the
default flags as close as possible to the current fedora flags, while
still being generic.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
Makefile.inc | 26 +++++++++++++++++++-------
1 file changed, 19 insertions(+), 7 deletions(-)
diff --git a/Makefile.inc b/Makefile.inc
index 2a75dc9c..5ac660de 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -92,23 +92,35 @@ TEST_CC_OPTION = $(shell \
echo "$(2)"; \
fi)
-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 -Wno-error=clobbered,)
WFORMATOVERFLOW := $(call TEST_CC_OPTION,-Wformat-overflow=2,)
-OPTFLAGS := -O2 -g $(STACKPROT) --param=ssp-buffer-size=4
-WARNFLAGS := -Werror -Wall -Wextra -Wformat=2 $(WFORMATOVERFLOW) -Werror=implicit-int \
+ifndef RPM_OPT_FLAGS
+ STACKPROT := $(call TEST_CC_OPTION,-fstack-protector-strong,-fstack-protector)
+ OPTFLAGS := -O2 -g -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions \
+ $(STACKPROT) -grecord-gcc-switches \
+ -fasynchronous-unwind-tables --param=ssp-buffer-size=4
+ ifeq ($(shell test -f /usr/lib/rpm/redhat/redhat-hardened-cc1 && echo 1),1)
+ OPTFLAGS += -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
+ endif
+ ifeq ($(shell test -f /usr/lib/rpm/redhat/redhat-annobin-cc1 && echo 1),1)
+ OPTFLAGS += -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1
+ endif
+else
+ OPTFLAGS := $(RPM_OPT_FLAGS) --param=ssp-buffer-size=4
+endif
+WARNFLAGS := -Werror -Wextra -Wformat=2 $(WFORMATOVERFLOW) -Werror=implicit-int \
-Werror=implicit-function-declaration -Werror=format-security \
- $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS)
-CPPFLAGS := -Wp,-D_FORTIFY_SOURCE=2
+ $(WNOCLOBBERED) -Werror=cast-qual $(ERROR_DISCARDED_QUALIFIERS) \
+ -Wstrict-prototypes
CFLAGS := --std=gnu99 $(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
-LDFLAGS := $(LDFLAGS) -Wl,-z,relro -Wl,-z,now -Wl,-z,defs
+LDFLAGS := $(LDFLAGS) $(RPM_LD_FLAGS) -Wl,-z,relro -Wl,-z,now -Wl,-z,defs
BIN_LDFLAGS = -pie
# Check whether a function with name $1 has been declared in header file $2.
@@ -139,4 +151,4 @@ check_file = $(shell \
%.o: %.c
@echo building $@ because of $?
- $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+ $(CC) $(CFLAGS) -c -o $@ $<

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@ -0,0 +1,772 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 16 Oct 2014 15:49:01 -0500
Subject: [PATCH] RH: add mpathconf
mpathconf is a program (largely based on lvmcomf) to help users
configure /etc/multipath.conf and enable or disable multipathing. It
has a couple of built-in options that can be set directly from the
command line. But, mostly it is used to get a multipath.conf file
with the OS defaults, and to enable and disable multipathing via
a single command.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/config.c | 2 +
multipath/Makefile | 5 +
multipath/mpathconf | 556 ++++++++++++++++++++++++++++++++++++++++++
multipath/mpathconf.8 | 135 ++++++++++
4 files changed, 698 insertions(+)
create mode 100644 multipath/mpathconf
create mode 100644 multipath/mpathconf.8
diff --git a/libmultipath/config.c b/libmultipath/config.c
index 5f35c3d3..cee3bbb7 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -897,6 +897,8 @@ int _init_config (const char *file, struct config *conf)
factorize_hwtable(conf->hwtable, builtin_hwtable_size, file);
} else {
condlog(0, "/etc/multipath.conf does not exist, blacklisting all devices.");
+ condlog(0, "You can run \"/sbin/mpathconf --enable\" to create");
+ condlog(0, "/etc/multipath.conf. See man mpathconf(8) for more details");
if (conf->blist_devnode == NULL) {
conf->blist_devnode = vector_alloc();
if (!conf->blist_devnode) {
diff --git a/multipath/Makefile b/multipath/Makefile
index b9bbb3cf..e720c7f6 100644
--- a/multipath/Makefile
+++ b/multipath/Makefile
@@ -18,10 +18,12 @@ $(EXEC): $(OBJS) $(multipathdir)/libmultipath.so $(mpathcmddir)/libmpathcmd.so
$(CC) $(CFLAGS) $(OBJS) -o $(EXEC) $(LDFLAGS) $(LIBDEPS)
$(GZIP) $(EXEC).8 > $(EXEC).8.gz
$(GZIP) $(EXEC).conf.5 > $(EXEC).conf.5.gz
+ $(GZIP) mpathconf.8 > mpathconf.8.gz
install:
$(INSTALL_PROGRAM) -d $(DESTDIR)$(bindir)
$(INSTALL_PROGRAM) -m 755 $(EXEC) $(DESTDIR)$(bindir)/
+ $(INSTALL_PROGRAM) -m 755 mpathconf $(DESTDIR)$(bindir)/
$(INSTALL_PROGRAM) -d $(DESTDIR)$(udevrulesdir)
$(INSTALL_PROGRAM) -m 644 11-dm-mpath.rules $(DESTDIR)$(udevrulesdir)
$(INSTALL_PROGRAM) -m 644 $(EXEC).rules $(DESTDIR)$(libudevdir)/rules.d/62-multipath.rules
@@ -29,13 +31,16 @@ install:
$(INSTALL_PROGRAM) -m 644 $(EXEC).8.gz $(DESTDIR)$(man8dir)
$(INSTALL_PROGRAM) -d $(DESTDIR)$(man5dir)
$(INSTALL_PROGRAM) -m 644 $(EXEC).conf.5.gz $(DESTDIR)$(man5dir)
+ $(INSTALL_PROGRAM) -m 644 mpathconf.8.gz $(DESTDIR)$(man8dir)
uninstall:
$(RM) $(DESTDIR)$(bindir)/$(EXEC)
$(RM) $(DESTDIR)$(udevrulesdir)/11-dm-mpath.rules
$(RM) $(DESTDIR)$(libudevdir)/rules.d/62-multipath.rules
+ $(RM) $(DESTDIR)$(bindir)/mpathconf
$(RM) $(DESTDIR)$(man8dir)/$(EXEC).8.gz
$(RM) $(DESTDIR)$(man5dir)/$(EXEC).conf.5.gz
+ $(RM) $(DESTDIR)$(man8dir)/mpathconf.8.gz
clean: dep_clean
$(RM) core *.o $(EXEC) *.gz
diff --git a/multipath/mpathconf b/multipath/mpathconf
new file mode 100644
index 00000000..c00d2555
--- /dev/null
+++ b/multipath/mpathconf
@@ -0,0 +1,556 @@
+#!/bin/bash
+#
+# Copyright (C) 2010 Red Hat, Inc. All rights reserved.
+#
+# This file is part of the device-mapper-multipath package.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+#
+# Simple editting of /etc/multipath.conf
+# This program was largely ripped off from lvmconf
+#
+
+unset ENABLE FIND FRIENDLY PROPERTY FOREIGN MODULE MULTIPATHD HAVE_DISABLE HAVE_WWID_DISABLE HAVE_FIND HAVE_BLACKLIST HAVE_EXCEPTIONS HAVE_DEFAULTS HAVE_FRIENDLY HAVE_PROPERTY HAVE_FOREIGN HAVE_MULTIPATHD HAVE_MODULE HAVE_OUTFILE SHOW_STATUS CHANGED_CONFIG WWID_LIST
+
+DEFAULT_CONFIG="# device-mapper-multipath configuration file
+
+# For a complete list of the default configuration values, run either:
+# # multipath -t
+# or
+# # multipathd show config
+
+# For a list of configuration options with descriptions, see the
+# multipath.conf man page.
+
+defaults {
+ user_friendly_names yes
+ find_multipaths yes
+}"
+
+CONFIGFILE="/etc/multipath.conf"
+OUTPUTFILE="/etc/multipath.conf"
+MULTIPATHDIR="/etc/multipath"
+TMPFILE="/etc/multipath/.multipath.conf.tmp"
+WWIDS=0
+
+function usage
+{
+ echo "usage: $0 <command>"
+ echo ""
+ echo "Commands:"
+ echo "Enable: --enable "
+ echo "Disable: --disable"
+ echo "Only allow certain wwids (instead of enable): --allow <WWID>"
+ echo "Set user_friendly_names (Default y): --user_friendly_names <y|n>"
+ echo "Set find_multipaths (Default y): --find_multipaths <yes|no|strict|greedy|smart>"
+ echo "Set default property blacklist (Default n): --property_blacklist <y|n>"
+ echo "Set enable_foreign to show foreign devices (Default n): --enable_foreign <y|n>"
+ echo "Load the dm-multipath modules on enable (Default y): --with_module <y|n>"
+ echo "start/stop/reload multipathd (Default n): --with_multipathd <y|n>"
+ echo "select output file (Default /etc/multipath.conf): --outfile <FILE>"
+ echo ""
+}
+
+function add_wwid
+{
+ INDEX=0
+ while [ "$INDEX" -lt "$WWIDS" ] ; do
+ if [ "$1" = "${WWID_LIST[$INDEX]}" ] ; then
+ return
+ fi
+ ((INDEX++))
+ done
+ WWID_LIST[$WWIDS]="$1"
+ ((WWIDS++))
+}
+
+function get_dm_deps
+{
+ shift 3
+ while [ -n "$1" -a -n "$2" ]; do
+ MAJOR=$(echo $1 | tr -d '(,')
+ MINOR=$(echo $2 | tr -d ')')
+ UUID=`dmsetup info -c --noheadings -o uuid -j $MAJOR -m $MINOR 2> /dev/null`
+ if [ -n "$UUID" ] ; then
+ set_dm_wwid $UUID
+ fi
+ shift 2
+ done
+}
+
+function set_dm_wwid
+{
+ if [[ "$1" =~ ^part[[:digit:]]+-mpath- ]] ; then
+ add_wwid "${1##part*-mpath-}"
+ elif [[ "$1" =~ ^mpath- ]] ; then
+ add_wwid "${1##mpath-}"
+ else
+ get_dm_deps `dmsetup deps -u $1`
+ fi
+}
+
+function set_wwid
+{
+ UUID=""
+ if [[ "$1" =~ ^[[:digit:]]+:[[:digit:]]+$ ]] ; then
+ MAJOR=${1%%:*}
+ MINOR=${1##*:}
+ UUID=`dmsetup info -c --noheadings -o uuid -j $MAJOR -m $MINOR 2> /dev/null`
+ else
+ UUID=`dmsetup info -c --noheadings -o uuid $1 2> /dev/null`
+ fi
+ if [ -n "$UUID" ] ; then
+ set_dm_wwid $UUID
+ else
+ add_wwid "$1"
+ fi
+}
+
+function parse_args
+{
+ while [ -n "$1" ]; do
+ case $1 in
+ --enable)
+ ENABLE=1
+ shift
+ ;;
+ --disable)
+ ENABLE=0
+ shift
+ ;;
+ --allow)
+ ENABLE=2
+ if [ -n "$2" ]; then
+ set_wwid $2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ --user_friendly_names)
+ if [ -n "$2" ]; then
+ FRIENDLY=$2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ --find_multipaths)
+ if [ -n "$2" ]; then
+ FIND=$2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ --property_blacklist)
+ if [ -n "$2" ]; then
+ PROPERTY=$2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ --enable_foreign)
+ if [ -n "$2" ]; then
+ FOREIGN=$2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ --with_module)
+ if [ -n "$2" ]; then
+ MODULE=$2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ --with_multipathd)
+ if [ -n "$2" ]; then
+ MULTIPATHD=$2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ --outfile)
+ if [ -n "$2" ]; then
+ OUTPUTFILE=$2
+ HAVE_OUTFILE=1
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
+ *)
+ usage
+ exit
+ esac
+ done
+}
+
+function validate_args
+{
+ if [ "$ENABLE" = "0" ] && [ -n "$FRIENDLY" -o -n "$FIND" -o -n "$PROPERTY" -o -n "$MODULE" ]; then
+ echo "ignoring extra parameters on disable"
+ FRIENDLY=""
+ FIND=""
+ PROPERTY=""
+ MODULE=""
+ fi
+ if [ -n "$FRIENDLY" ] && [ "$FRIENDLY" != "y" -a "$FRIENDLY" != "n" ]; then
+ echo "--user_friendly_names must be either 'y' or 'n'"
+ exit 1
+ fi
+ if [ "$FIND" = "y" ]; then
+ FIND="yes"
+ elif [ "$FIND" = "n" ]; then
+ FIND="no"
+ elif [ -n "$FIND" ] && [ "$FIND" != "yes" -a "$FIND" != "no" -a "$FIND" != "strict" -a "$FIND" != "greedy" -a "$FIND" != "smart" ]; then
+ echo "--find_multipaths must be one of 'yes' 'no' 'strict' 'greedy' or 'smart'"
+ exit 1
+ fi
+ if [ -n "$PROPERTY" ] && [ "$PROPERTY" != "y" -a "$PROPERTY" != "n" ]; then
+ echo "--property_blacklist must be either 'y' or 'n'"
+ exit 1
+ fi
+ if [ -n "$FOREIGN" ] && [ "$FOREIGN" != "y" -a "$FOREIGN" != "n" ]; then
+ echo "--enable_foreign must be either 'y' or 'n'"
+ exit 1
+ fi
+ if [ -z "$ENABLE" -a -z "$FIND" -a -z "$FRIENDLY" -a -z "$PROPERTY" -a -z "$FOREIGN" ]; then
+ SHOW_STATUS=1
+ fi
+ if [ -n "$MODULE" ] && [ "$MODULE" != "y" -a "$MODULE" != "n" ]; then
+ echo "--with_module must be either 'y' or 'n'"
+ exit 1
+ fi
+ if [ -n "$MULTIPATHD" ] && [ "$MULTIPATHD" != "y" -a "$MULTIPATHD" != "n" ]; then
+ echo "--with_multipathd must be either 'y' or 'n'"
+ exit 1
+ fi
+ if [ "$ENABLE" = 2 -a -z "$HAVE_OUTFILE" ]; then
+ echo "Because --allow makes changes that cannot be automatically reversed,"
+ echo "you must set --outfile when you set --allow"
+ exit 1
+ fi
+}
+
+function add_blacklist_exceptions
+{
+ INDEX=0
+ while [ "$INDEX" -lt "$WWIDS" ] ; do
+ sed -i '/^blacklist_exceptions[[:space:]]*{/ a\
+ wwid '"\"${WWID_LIST[$INDEX]}\""'
+' $TMPFILE
+ ((INDEX++))
+ done
+}
+
+umask 0077
+
+parse_args "$@"
+
+validate_args
+
+if [ ! -d "$MULTIPATHDIR" ]; then
+ echo "/etc/multipath/ does not exist. failing"
+ exit 1
+fi
+
+rm $TMPFILE 2> /dev/null
+echo "$DEFAULT_CONFIG" > $TMPFILE
+if [ -f "$CONFIGFILE" ]; then
+ cp $CONFIGFILE $TMPFILE
+fi
+
+if grep -q "^blacklist[[:space:]]*{" $TMPFILE ; then
+ HAVE_BLACKLIST=1
+fi
+
+if grep -q "^blacklist_exceptions[[:space:]]*{" $TMPFILE ; then
+ HAVE_EXCEPTIONS=1
+fi
+
+if grep -q "^defaults[[:space:]]*{" $TMPFILE ; then
+ HAVE_DEFAULTS=1
+fi
+
+if [ -z "$MODULE" -o "$MODULE" = "y" ]; then
+ if lsmod | grep -q "dm_multipath" ; then
+ HAVE_MODULE=1
+ else
+ HAVE_MODULE=0
+ fi
+fi
+
+if [ "$MULTIPATHD" = "y" ]; then
+ if /bin/systemctl status multipathd.service > /dev/null 2>&1 ; then
+ HAVE_MULTIPATHD=1
+ else
+ HAVE_MULTIPATHD=0
+ fi
+fi
+
+if [ "$HAVE_BLACKLIST" = "1" ]; then
+ if sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*devnode[[:space:]][[:space:]]*\"\.\?\*\"" ; then
+ HAVE_DISABLE=1
+ elif sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*#[[:space:]]*devnode[[:space:]][[:space:]]*\"\.\?\*\"" ; then
+ HAVE_DISABLE=0
+ fi
+fi
+
+if [ "$HAVE_BLACKLIST" = "1" ]; then
+ if sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*wwid[[:space:]][[:space:]]*\"\.\?\*\"" ; then
+ HAVE_WWID_DISABLE=1
+ elif sed -n '/^blacklist[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*#[[:space:]]*wwid[[:space:]][[:space:]]*\"\.\?\*\"" ; then
+ HAVE_WWID_DISABLE=0
+ fi
+fi
+
+if [ "$HAVE_DEFAULTS" = "1" ]; then
+ HAVE_FIND=`sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | sed -n 's/^[[:blank:]]*find_multipaths[[:blank:]][[:blank:]]*\([^[:blank:]]*\).*$/\1/p' | sed -n 1p`
+ if [ "$HAVE_FIND" = "1" ]; then
+ HAVE_FIND="yes"
+ elif [ "$HAVE_FIND" = "0" ]; then
+ HAVE_FIND="no"
+ fi
+ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*user_friendly_names[[:space:]][[:space:]]*\(yes\|1\)" ; then
+ HAVE_FRIENDLY=1
+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*user_friendly_names[[:space:]][[:space:]]*\(no\|0\)" ; then
+ HAVE_FRIENDLY=0
+ fi
+ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*#[[:space:]]*enable_foreign" ; then
+ HAVE_FOREIGN=0
+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*enable_foreign[[:space:]][[:space:]]*\"\.\*\"" ; then
+ HAVE_FOREIGN=1
+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*enable_foreign[[:space:]][[:space:]]*\"\^\$\"" ; then
+ HAVE_FOREIGN=2
+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*enable_foreign[[:space:]][[:space:]]*\"NONE\"" ; then
+ HAVE_FOREIGN=2
+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*enable_foreign" ; then
+ HAVE_FOREIGN=3
+ fi
+fi
+
+if [ "$HAVE_EXCEPTIONS" = "1" ]; then
+ if sed -n '/^blacklist_exceptions[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*property[[:space:]][[:space:]]*\"(SCSI_IDENT_|ID_WWN)\"" ; then
+ HAVE_PROPERTY=1
+ elif sed -n '/^blacklist_exceptions[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*#[[:space:]]*property[[:space:]][[:space:]]*\"(SCSI_IDENT_|ID_WWN)\"" ; then
+ HAVE_PROPERTY=0
+ fi
+fi
+
+if [ -n "$SHOW_STATUS" ]; then
+ if [ -z "$HAVE_DISABLE" -o "$HAVE_DISABLE" = 0 ]; then
+ echo "multipath is enabled"
+ else
+ echo "multipath is disabled"
+ fi
+ if [ -z "$HAVE_FIND" ]; then
+ echo "find_multipaths is no"
+ else
+ echo "find_multipaths is $HAVE_FIND"
+ fi
+ if [ -z "$HAVE_FRIENDLY" -o "$HAVE_FRIENDLY" = 0 ]; then
+ echo "user_friendly_names is disabled"
+ else
+ echo "user_friendly_names is enabled"
+ fi
+ if [ -z "$HAVE_PROPERTY" -o "$HAVE_PROPERTY" = 0 ]; then
+ echo "default property blacklist is disabled"
+ else
+ echo "default property blacklist is enabled"
+ fi
+ if [ -z "$HAVE_FOREIGN" -o "$HAVE_FOREIGN" = 0 ]; then
+ echo "enable_foreign is not set (no foreign multipath devices will be shown)"
+ elif [ "$HAVE_FOREIGN" = 1 ]; then
+ echo "enable_foreign is set (all foreign multipath devices will be shown)"
+ elif [ "$HAVE_FOREIGN" = 2 ]; then
+ echo "enable_foreign is set (no foreign multipath devices will be shown)"
+ else
+ echo "enable_foreign is set (foreign multipath devices may not be shown)"
+ fi
+ if [ -n "$HAVE_MODULE" ]; then
+ if [ "$HAVE_MODULE" = 1 ]; then
+ echo "dm_multipath module is loaded"
+ else
+ echo "dm_multipath module is not loaded"
+ fi
+ fi
+ if [ -z "$HAVE_MULTIPATHD" ]; then
+ if /bin/systemctl status multipathd.service > /dev/null 2>&1 ; then
+ HAVE_MULTIPATHD=1
+ else
+ HAVE_MULTIPATHD=0
+ fi
+ fi
+ if [ "$HAVE_MULTIPATHD" = 1 ]; then
+ echo "multipathd is running"
+ else
+ echo "multipathd is not running"
+ fi
+ exit 0
+fi
+
+if [ -z "$HAVE_BLACKLIST" ]; then
+ cat >> $TMPFILE <<- _EOF_
+
+blacklist {
+}
+_EOF_
+fi
+
+if [ -z "$HAVE_DEFAULTS" ]; then
+ cat >> $TMPFILE <<- _EOF_
+
+defaults {
+}
+_EOF_
+fi
+
+if [ "$ENABLE" = 2 ]; then
+ if [ "$HAVE_DISABLE" = 1 ]; then
+ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*devnode[[:space:]][[:space:]]*\"\.\?\*\"/# devnode ".*"/' $TMPFILE
+ fi
+ if [ -z "$HAVE_WWID_DISABLE" ]; then
+ sed -i '/^blacklist[[:space:]]*{/ a\
+ wwid ".*"
+' $TMPFILE
+ elif [ "$HAVE_WWID_DISABLE" = 0 ]; then
+ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*#[[:space:]]*wwid[[:space:]][[:space:]]*\"\.\?\*\"/ wwid ".*"/' $TMPFILE
+ fi
+ if [ "$HAVE_EXCEPTIONS" = 1 ]; then
+ sed -i '/^blacklist_exceptions[[:space:]]*{/,/^}/ {/^[[:space:]]*wwid/ d}' $TMPFILE
+ else
+ cat >> $TMPFILE <<- _EOF_
+
+blacklist_exceptions {
+}
+_EOF_
+ fi
+ add_blacklist_exceptions
+elif [ "$ENABLE" = 1 ]; then
+ if [ "$HAVE_DISABLE" = 1 ]; then
+ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*devnode[[:space:]][[:space:]]*\"\.\?\*\"/# devnode ".*"/' $TMPFILE
+ fi
+elif [ "$ENABLE" = 0 ]; then
+ if [ -z "$HAVE_DISABLE" ]; then
+ sed -i '/^blacklist[[:space:]]*{/ a\
+ devnode ".*"
+' $TMPFILE
+ elif [ "$HAVE_DISABLE" = 0 ]; then
+ sed -i '/^blacklist[[:space:]]*{/,/^}/ s/^[[:space:]]*#[[:space:]]*devnode[[:space:]][[:space:]]*\"\.\?\*\"/ devnode ".*"/' $TMPFILE
+ fi
+fi
+
+if [ -n "$FIND" ]; then
+ if [ -z "$HAVE_FIND" ]; then
+ sed -i '/^defaults[[:space:]]*{/ a\
+ find_multipaths '"$FIND"'
+' $TMPFILE
+ CHANGED_CONFIG=1
+ elif [ "$FIND" != "$HAVE_FIND" ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:blank:]]*find_multipaths[[:blank:]][[:blank:]]*[^[:blank:]]*/ find_multipaths '"$FIND"'/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+fi
+
+if [ "$FRIENDLY" = "n" ]; then
+ if [ "$HAVE_FRIENDLY" = 1 ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*user_friendly_names[[:space:]][[:space:]]*\(yes\|1\)/ user_friendly_names no/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+elif [ "$FRIENDLY" = "y" ]; then
+ if [ -z "$HAVE_FRIENDLY" ]; then
+ sed -i '/^defaults[[:space:]]*{/ a\
+ user_friendly_names yes
+' $TMPFILE
+ CHANGED_CONFIG=1
+ elif [ "$HAVE_FRIENDLY" = 0 ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*user_friendly_names[[:space:]][[:space:]]*\(no\|0\)/ user_friendly_names yes/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+fi
+
+if [ "$PROPERTY" = "n" ]; then
+ if [ "$HAVE_PROPERTY" = 1 ]; then
+ sed -i '/^blacklist_exceptions[[:space:]]*{/,/^}/ s/^[[:space:]]*property[[:space:]][[:space:]]*\"(SCSI_IDENT_|ID_WWN)\"/# property \"(SCSI_IDENT_|ID_WWN)\"/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+elif [ "$PROPERTY" = "y" ]; then
+ if [ -z "$HAVE_PROPERTY" ]; then
+ sed -i '/^blacklist_exceptions[[:space:]]*{/ a\
+ property "(SCSI_IDENT_|ID_WWN)"
+' $TMPFILE
+ CHANGED_CONFIG=1
+ elif [ "$HAVE_PROPERTY" = 0 ]; then
+ sed -i '/^blacklist_exceptions[[:space:]]*{/,/^}/ s/^[[:space:]]*#[[:space:]]*property[[:space:]][[:space:]]*\"(SCSI_IDENT_|ID_WWN)\"/ property \"(SCSI_IDENT_|ID_WWN)\"/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+fi
+
+if [ "$FOREIGN" = "n" ]; then
+ if [ "$HAVE_FOREIGN" = 1 -o "$HAVE_FOREIGN" = 3 ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*enable_foreign/# enable_foreign/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+elif [ "$FOREIGN" = "y" ]; then
+ if [ -z "$HAVE_FOREIGN" ]; then
+ sed -i '/^defaults[[:space:]]*{/ a\
+ enable_foreign ".*"
+' $TMPFILE
+ CHANGED_CONFIG=1
+ elif [ "$HAVE_FOREIGN" = 0 -o "$HAVE_FOREIGN" = 2 -o "$HAVE_FOREIGN" = 3 ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*#\?[[:space:]]*enable_foreign.*$/ enable_foreign ".*"/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+fi
+
+if [ -f "$OUTPUTFILE" ]; then
+ cp $OUTPUTFILE $OUTPUTFILE.old
+ if [ $? != 0 ]; then
+ echo "failed to backup old config file, $OUTPUTFILE not updated"
+ exit 1
+ fi
+fi
+
+cp $TMPFILE $OUTPUTFILE
+if [ $? != 0 ]; then
+ echo "failed to copy new config file into place, check $OUTPUTFILE is still OK"
+ exit 1
+fi
+
+rm -f $TMPFILE
+
+if [ "$ENABLE" = 1 ]; then
+ if [ "$HAVE_MODULE" = 0 ]; then
+ modprobe dm_multipath
+ fi
+ if [ "$HAVE_MULTIPATHD" = 0 ]; then
+ systemctl start multipathd.service
+ fi
+elif [ "$ENABLE" = 0 ]; then
+ if [ "$HAVE_MULTIPATHD" = 1 ]; then
+ systemctl stop multipathd.service
+ fi
+elif [ -n "$CHANGED_CONFIG" -a "$HAVE_MULTIPATHD" = 1 ]; then
+ systemctl reload multipathd.service
+fi
diff --git a/multipath/mpathconf.8 b/multipath/mpathconf.8
new file mode 100644
index 00000000..a14d831e
--- /dev/null
+++ b/multipath/mpathconf.8
@@ -0,0 +1,135 @@
+.TH MPATHCONF 8 "June 2010" "" "Linux Administrator's Manual"
+.SH NAME
+mpathconf - A tool for configuring device-mapper-multipath
+.SH SYNOPSIS
+.B mpathconf
+.RB [\| commands \|]
+.RB [\| options \|]
+.SH DESCRIPTION
+.B mpathconf
+is a utility that creates or modifies
+.B /etc/multipath.conf.
+It can enable or disable multipathing and configure some common options.
+.B mpathconf
+can also load the
+.B dm_multipath
+module, start and stop the
+.B multipathd
+daemon, and configure the
+.B multipathd
+service to start automatically or not. If
+.B mpathconf
+is called with no commands, it will display the current configuration, but
+will not create of modify
+.B /etc/multipath.conf
+
+The default options for mpathconf are
+.B --with_module
+The
+.B --with_multipathd
+option is not set by default. Enabling multipathing will load the
+.B dm_multipath
+module but it will not immediately start it. This is so
+that users can manually edit their config file if necessary, before starting
+.B multipathd.
+
+If
+.B /etc/multipath.conf
+already exists, mpathconf will edit it. If it does not exist, mpathconf will
+create a default file with
+.B user_friendly_names
+set and
+.B find_multipaths
+set to \fByes\fP. To disable these, use the
+.B --user_friendly_names n
+and
+.B --find_multipaths n
+options
+.SH COMMANDS
+.TP
+.B --enable
+Removes any line that blacklists all device nodes from the
+.B /etc/multipath.conf
+blacklist section. Also, creates
+.B /etc/multipath.conf
+if it doesn't exist.
+.TP
+.B --disable
+Adds a line that blacklists all device nodes to the
+.B /etc/multipath.conf
+blacklist section. If no blacklist section exists, it will create one.
+.TP
+.B --allow \fB<device>\fP
+Modifies the \fB/etc/multipath/conf\fP blacklist to blacklist all
+wwids and the blacklist_exceptions to whitelist \fB<device>\fP. \fB<device>\fP
+can be in the form of MAJOR:MINOR, a wwid, or the name of a device-mapper
+device, either a multipath device, or any device on stacked on top of one or
+more multipath devices. This command can be used multiple times to allow
+multiple devices. \fBNOTE:\fP This action will create a configuration file that
+mpathconf will not be able to revert back to its previous state. Because
+of this, \fB--outfile\fP is required when using \fB--allow\fP.
+.TP
+.B --user_friendly_names \fP { \fBy\fP | \fBn\fP }
+If set to \fBy\fP, this adds the line
+.B user_friendly_names yes
+to the
+.B /etc/multipath.conf
+defaults section. If set to \fBn\fP, this removes the line, if present. This
+command can be used along with any other command.
+.TP
+.B --find_multipaths\fP { \fByes\fP | \fBno\fP | \fBstrict\fP | \fBgreedy\fP | \fBsmart\fP }
+If set to \fB<value>\fP, this adds the line
+.B find_multipaths <value>
+to the
+.B /etc/multipath.conf
+defaults section. This command can be used along with any other command.
+\fBy\fP and \fBn\fP can be used instead of \fByes\fP and \fBno\fP.
+.TP
+.B --property_blacklist \fP { \fBy\fP | \fBn\fP }
+If set to \fBy\fP, this adds the line
+.B property "(SCSI_IDENT_|ID_WWN)"
+to the
+.B /etc/multipath.conf
+blacklist_exceptions section. If set to \fBn\fP, this removes the line, if
+present. This command can be used along with any other command.
+.TP
+.B --enable_foreign\fP { \fBy\fP | \fBn\fP }
+If set to \fBy\fP, this adds the line
+.B enable_foreign ".*"
+to the
+.B /etc/multipath.conf
+defaults section. if set to \fBn\fP, this removes the line, if present. This
+command can be used along with any other command.
+.TP
+.B --outfile \fB<filename>\fP
+Write the resulting multipath configuration to \fB<filename>\fP instead of
+\fB/etc/multipath.conf\fP.
+.SH OPTIONS
+.TP
+.B --with_module\fP { \fBy\fP | \fBn\fP }
+If set to \fBy\fP, this runs
+.B modprobe dm_multipath
+to install the multipath modules. This option only works with the
+.B --enable
+command. This option is set to \fBy\fP by default.
+.TP
+.B --with_multipathd { \fBy\fP | \fBn\fP }
+If set to \fBy\fP, this runs
+.B service multipathd start
+to start the multipathd daemon on \fB--enable\fP,
+.B service multipathd stop
+to stop the multipathd daemon on \fB--disable\fP, and
+.B service multipathd reload
+to reconfigure multipathd on \fB--user_frindly_names\fP and
+\fB--find_multipaths\fP.
+This option is set to \fBn\fP by default.
+.SH FILES
+.BR /etc/multipath.conf
+.SH "SEE ALSO"
+.BR multipath.conf (5),
+.BR modprobe (8),
+.BR multipath (8),
+.BR multipathd (8),
+.BR service (8),
+.SH AUTHOR
+Benjamin Marzinski <bmarzins@redhat.com>

View File

@ -0,0 +1,151 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 17 Oct 2014 11:20:34 -0500
Subject: [PATCH] RH: add wwids from kernel cmdline mpath.wwids with -A
This patch adds another option to multipath, "-A", which reads
/proc/cmdline for mpath.wwid=<WWID> options, and adds any wwids it finds
to /etc/multipath/wwids. While this isn't usually important during
normal operation, since these wwids should already be added, it can be
helpful during installation, to make sure that multipath can claim
devices as its own, before LVM or something else makes use of them. The
patch also execs "/sbin/multipath -A" before running multipathd in
multipathd.service
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 54 +++++++++++++++++++++++++++++++++--
multipath/multipath.8 | 7 ++++-
multipathd/multipathd.service | 1 +
3 files changed, 59 insertions(+), 3 deletions(-)
diff --git a/multipath/main.c b/multipath/main.c
index 65ece830..748e7902 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -122,7 +122,7 @@ usage (char * progname)
fprintf (stderr, " %s [-v level] [-R retries] -F\n", progname);
fprintf (stderr, " %s [-v level] [-l|-ll] [device]\n", progname);
fprintf (stderr, " %s [-v level] [-a|-w] device\n", progname);
- fprintf (stderr, " %s [-v level] -W\n", progname);
+ fprintf (stderr, " %s [-v level] [-A|-W]\n", progname);
fprintf (stderr, " %s [-v level] [-i] [-c|-C] device\n", progname);
fprintf (stderr, " %s [-v level] [-i] [-u|-U]\n", progname);
fprintf (stderr, " %s [-h|-t|-T]\n", progname);
@@ -136,6 +136,8 @@ usage (char * progname)
" -f flush a multipath device map\n"
" -F flush all multipath device maps\n"
" -a add a device wwid to the wwids file\n"
+ " -A add devices from kernel command line mpath.wwids\n"
+ " parameters to wwids file\n"
" -c check if a device should be a path in a multipath device\n"
" -C check if a multipath device has usable paths\n"
" -q allow queue_if_no_path when multipathd is not running\n"
@@ -450,6 +452,50 @@ static void cleanup_vecs(void)
free_pathvec(vecs.pathvec, FREE_PATHS);
}
+static int remember_cmdline_wwid(void)
+{
+ FILE *f = NULL;
+ char buf[LINE_MAX], *next, *ptr;
+ int ret = 0;
+
+ f = fopen("/proc/cmdline", "re");
+ if (!f) {
+ condlog(0, "can't open /proc/cmdline : %s", strerror(errno));
+ return -1;
+ }
+
+ if (!fgets(buf, sizeof(buf), f)) {
+ if (ferror(f))
+ condlog(0, "read of /proc/cmdline failed : %s",
+ strerror(errno));
+ else
+ condlog(0, "couldn't read /proc/cmdline");
+ fclose(f);
+ return -1;
+ }
+ fclose(f);
+ next = buf;
+ while((ptr = strstr(next, "mpath.wwid="))) {
+ ptr += 11;
+ next = strpbrk(ptr, " \t\n");
+ if (next) {
+ *next = '\0';
+ next++;
+ }
+ if (strlen(ptr)) {
+ if (remember_wwid(ptr) != 0)
+ ret = -1;
+ }
+ else {
+ condlog(0, "empty mpath.wwid kernel command line option");
+ ret = -1;
+ }
+ if (!next)
+ break;
+ }
+ return ret;
+}
+
static int
configure (struct config *conf, enum mpath_cmds cmd,
enum devtypes dev_type, char *devpath)
@@ -838,7 +884,7 @@ main (int argc, char *argv[])
conf->retrigger_tries = 0;
conf->force_sync = 1;
atexit(cleanup_vecs);
- while ((arg = getopt(argc, argv, ":adDcChl::eFfM:v:p:b:BrR:itTquUwW")) != EOF ) {
+ while ((arg = getopt(argc, argv, ":aAdDcChl::eFfM:v:p:b:BrR:itTquUwW")) != EOF ) {
switch(arg) {
case 1: printf("optarg : %s\n",optarg);
break;
@@ -915,6 +961,10 @@ main (int argc, char *argv[])
case 'T':
cmd = CMD_DUMP_CONFIG;
break;
+ case 'A':
+ if (remember_cmdline_wwid() != 0)
+ exit(RTVL_FAIL);
+ exit(RTVL_OK);
case 'h':
usage(argv[0]);
exit(RTVL_OK);
diff --git a/multipath/multipath.8 b/multipath/multipath.8
index 17df59f5..5ca75359 100644
--- a/multipath/multipath.8
+++ b/multipath/multipath.8
@@ -63,7 +63,7 @@ multipath \- Device mapper target autoconfig.
.B multipath
.RB [\| \-v\ \c
.IR level \|]
-.B -W
+.RB [\| \-A | \-W \|]
.
.LP
.B multipath
@@ -145,6 +145,11 @@ device mapper, path checkers ...).
Add the WWID for the specified device to the WWIDs file.
.
.TP
+.B \-A
+Add the WWIDs from any kernel command line \fImpath.wwid\fR parameters to the
+WWIDs file.
+.
+.TP
.B \-w
Remove the WWID for the specified device from the WWIDs file.
.
diff --git a/multipathd/multipathd.service b/multipathd/multipathd.service
index 6d57c7e8..dfc1e962 100644
--- a/multipathd/multipathd.service
+++ b/multipathd/multipathd.service
@@ -16,6 +16,7 @@ Type=notify
NotifyAccess=main
LimitCORE=infinity
ExecStartPre=-/sbin/modprobe -a scsi_dh_alua scsi_dh_emc scsi_dh_rdac dm-multipath
+ExecStartPre=-/sbin/multipath -A
ExecStart=/sbin/multipathd -d -s
ExecReload=/sbin/multipathd reconfigure
TasksMax=infinity

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@ -0,0 +1,26 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 7 Jun 2018 17:43:52 -0500
Subject: [PATCH] RH: reset default find_mutipaths value to off
Upstream has changed to default find_multipaths to "strict". For now
Redhat will retain the previous default of "off".
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/defaults.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/defaults.h b/libmultipath/defaults.h
index c27946c7..e0dd32ad 100644
--- a/libmultipath/defaults.h
+++ b/libmultipath/defaults.h
@@ -23,7 +23,7 @@
#define DEFAULT_NO_PATH_RETRY NO_PATH_RETRY_UNDEF
#define DEFAULT_VERBOSITY 2
#define DEFAULT_REASSIGN_MAPS 0
-#define DEFAULT_FIND_MULTIPATHS FIND_MULTIPATHS_STRICT
+#define DEFAULT_FIND_MULTIPATHS FIND_MULTIPATHS_OFF
#define DEFAULT_FAST_IO_FAIL 5
#define DEFAULT_DEV_LOSS_TMO 600
#define DEFAULT_RETAIN_HWHANDLER RETAIN_HWHANDLER_ON

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@ -0,0 +1,84 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 11 Apr 2019 13:25:42 -0500
Subject: [PATCH] RH: attempt to get ANA info via sysfs first
When the ANA prioritizer is run, first see if the "ana_state" sysfs file
exists, and if it does, try to read the state from there. If that fails,
fallback to using an ioctl.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/prioritizers/ana.c | 31 +++++++++++++++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/libmultipath/prioritizers/ana.c b/libmultipath/prioritizers/ana.c
index b5c7873d..e139360c 100644
--- a/libmultipath/prioritizers/ana.c
+++ b/libmultipath/prioritizers/ana.c
@@ -24,6 +24,7 @@
#include "prio.h"
#include "util.h"
#include "structs.h"
+#include "sysfs.h"
enum {
ANA_ERR_GETCTRL_FAILED = 1,
@@ -36,6 +37,7 @@ enum {
ANA_ERR_GETNS_FAILED,
ANA_ERR_NO_MEMORY,
ANA_ERR_NO_INFORMATION,
+ ANA_ERR_INVALID_STATE,
};
static const char *ana_errmsg[] = {
@@ -49,6 +51,7 @@ static const char *ana_errmsg[] = {
[ANA_ERR_GETNS_FAILED] = "couldn't get namespace info",
[ANA_ERR_NO_MEMORY] = "out of memory",
[ANA_ERR_NO_INFORMATION] = "invalid fd",
+ [ANA_ERR_INVALID_STATE] = "invalid state",
};
static const char *anas_string[] = {
@@ -107,6 +110,27 @@ static int get_ana_state(__u32 nsid, __u32 anagrpid, void *ana_log,
return -ANA_ERR_GETANAS_NOTFOUND;
}
+static int get_ana_info_sysfs(struct path *pp)
+{
+ char state[32];
+
+ if (!pp->udev || sysfs_attr_get_value(pp->udev, "ana_state", state,
+ sizeof(state)) <= 0)
+ return -ANA_ERR_NO_INFORMATION;
+
+ if (strcmp(state, "optimized") == 0)
+ return NVME_ANA_OPTIMIZED;
+ if (strcmp(state, "non-optimized") == 0)
+ return NVME_ANA_NONOPTIMIZED;
+ if (strcmp(state, "inaccessible") == 0)
+ return NVME_ANA_INACCESSIBLE;
+ if (strcmp(state, "persistent-loss") == 0)
+ return NVME_ANA_PERSISTENT_LOSS;
+ if (strcmp(state, "change") == 0)
+ return NVME_ANA_CHANGE;
+ return -ANA_ERR_INVALID_STATE;
+}
+
static int get_ana_info(struct path * pp)
{
int rc;
@@ -210,8 +234,11 @@ int getprio(struct path *pp, __attribute__((unused)) char *args,
if (pp->fd < 0)
rc = -ANA_ERR_NO_INFORMATION;
- else
- rc = get_ana_info(pp);
+ else {
+ rc = get_ana_info_sysfs(pp);
+ if (rc < 0)
+ rc = get_ana_info(pp);
+ }
switch (rc) {
case NVME_ANA_OPTIMIZED:

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@ -0,0 +1,102 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 25 Mar 2021 13:05:10 -0500
Subject: [PATCH] RH: make parse_vpd_pg83 match scsi_id output
Red Hat sets ID_SERIAL based on the result of scsi_id, instead of using
the result of sg_inq and 55-scsi-sg3_id.rules. Make parse_vpd_pg83 match
that.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/discovery.c | 18 ++----------------
tests/vpd.c | 6 ++++++
2 files changed, 8 insertions(+), 16 deletions(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index f25fe9e3..6fb81c28 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -1136,12 +1136,9 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
naa_prio = 7;
break;
case 2:
- /* IEEE Extended: Prio 6 */
- naa_prio = 6;
- break;
case 3:
- /* IEEE Locally assigned: Prio 1 */
- naa_prio = 1;
+ /* IEEE Extended or Locally assigned: Prio 6 */
+ naa_prio = 6;
break;
default:
/* Default: no priority */
@@ -1160,17 +1157,6 @@ parse_vpd_pg83(const unsigned char *in, size_t in_len,
vpd = d;
}
break;
- case 0x8:
- /* SCSI Name: Prio 3 */
- if (memcmp(d + 4, "eui.", 4) &&
- memcmp(d + 4, "naa.", 4) &&
- memcmp(d + 4, "iqn.", 4))
- break;
- if (prio < 3) {
- prio = 3;
- vpd = d;
- }
- break;
case 0x1:
/* T-10 Vendor ID: Prio 2 */
if (prio < 2) {
diff --git a/tests/vpd.c b/tests/vpd.c
index 8e730d37..7bf7990f 100644
--- a/tests/vpd.c
+++ b/tests/vpd.c
@@ -230,11 +230,13 @@ static const char * const str_prefix[] = {
[STR_IQN] = "iqn.",
};
+#if 0
static const char byte0[] = {
[STR_EUI] = '2',
[STR_NAA] = '3',
[STR_IQN] = '8',
};
+#endif
/**
* create_scsi_string_desc() - create a SCSI name string descriptor.
@@ -659,6 +661,7 @@ make_test_vpd_naa(2, 18);
make_test_vpd_naa(2, 17);
make_test_vpd_naa(2, 16);
+#if 0
/* SCSI Name string: EUI64, WWID size: 17 */
make_test_vpd_str(0, 20, 18)
make_test_vpd_str(0, 20, 17)
@@ -694,6 +697,7 @@ make_test_vpd_str(18, 20, 18)
make_test_vpd_str(18, 20, 17)
make_test_vpd_str(18, 20, 16)
make_test_vpd_str(18, 20, 15)
+#endif
static int test_vpd(void)
{
@@ -767,6 +771,7 @@ static int test_vpd(void)
cmocka_unit_test(test_vpd_naa_2_18),
cmocka_unit_test(test_vpd_naa_2_17),
cmocka_unit_test(test_vpd_naa_2_16),
+/*
cmocka_unit_test(test_vpd_str_0_20_18),
cmocka_unit_test(test_vpd_str_0_20_17),
cmocka_unit_test(test_vpd_str_0_20_16),
@@ -791,6 +796,7 @@ static int test_vpd(void)
cmocka_unit_test(test_vpd_str_18_20_17),
cmocka_unit_test(test_vpd_str_18_20_16),
cmocka_unit_test(test_vpd_str_18_20_15),
+*/
};
return cmocka_run_group_tests(tests, setup, teardown);
}

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@ -0,0 +1,69 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 23 Sep 2021 14:16:51 -0500
Subject: [PATCH] libmultipath: add section name to invalid keyword output
If users forget the closing brace for a section in multipath.conf,
multipath has no way to detect that. When it sees the keyword at the
start of the next section, it will complain that there is an invalid
keyword, because that keyword doesn't belong in previous section (which
was never ended with a closing brace). This can confuse users. To make
this easier to understand, when multipath prints an invalid keyword
message, it now also prints the current section name, which can give
users a hint that they didn't end the previous section.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/parser.c | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/libmultipath/parser.c b/libmultipath/parser.c
index 8ca91bf2..611054f7 100644
--- a/libmultipath/parser.c
+++ b/libmultipath/parser.c
@@ -504,7 +504,7 @@ validate_config_strvec(vector strvec, const char *file)
static int
process_stream(struct config *conf, FILE *stream, vector keywords,
- const char *file)
+ const char *section, const char *file)
{
int i;
int r = 0, t;
@@ -568,16 +568,22 @@ process_stream(struct config *conf, FILE *stream, vector keywords,
if (keyword->sub) {
kw_level++;
r += process_stream(conf, stream,
- keyword->sub, file);
+ keyword->sub,
+ keyword->string,
+ file);
kw_level--;
}
break;
}
}
- if (i >= VECTOR_SIZE(keywords))
- condlog(1, "%s line %d, invalid keyword: %s",
- file, line_nr, str);
-
+ if (i >= VECTOR_SIZE(keywords)) {
+ if (section)
+ condlog(1, "%s line %d, invalid keyword in the %s section: %s",
+ file, line_nr, section, str);
+ else
+ condlog(1, "%s line %d, invalid keyword: %s",
+ file, line_nr, str);
+ }
free_strvec(strvec);
}
if (kw_level == 1)
@@ -608,7 +614,7 @@ process_file(struct config *conf, const char *file)
/* Stream handling */
line_nr = 0;
- r = process_stream(conf, stream, conf->keywords, file);
+ r = process_stream(conf, stream, conf->keywords, NULL, file);
fclose(stream);
//free_keywords(keywords);

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@ -0,0 +1,84 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 23 Sep 2021 21:39:36 -0500
Subject: [PATCH] libmultipath: use typedef for keyword handler function
Don't keep writing out the function type.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/parser.c | 6 +++---
libmultipath/parser.h | 15 ++++++---------
2 files changed, 9 insertions(+), 12 deletions(-)
diff --git a/libmultipath/parser.c b/libmultipath/parser.c
index 611054f7..ebe1cbd9 100644
--- a/libmultipath/parser.c
+++ b/libmultipath/parser.c
@@ -33,7 +33,7 @@ static int line_nr;
int
keyword_alloc(vector keywords, char *string,
- int (*handler) (struct config *, vector),
+ handler_fn *handler,
print_fn *print,
int unique)
{
@@ -72,7 +72,7 @@ install_sublevel_end(void)
int
_install_keyword(vector keywords, char *string,
- int (*handler) (struct config *, vector),
+ handler_fn *handler,
print_fn *print,
int unique)
{
@@ -558,7 +558,7 @@ process_stream(struct config *conf, FILE *stream, vector keywords,
goto out;
}
if (keyword->handler) {
- t = (*keyword->handler) (conf, strvec);
+ t = keyword->handler(conf, strvec);
r += t;
if (t)
condlog(1, "multipath.conf +%d, parsing failed: %s",
diff --git a/libmultipath/parser.h b/libmultipath/parser.h
index b43d46f8..3452bde1 100644
--- a/libmultipath/parser.h
+++ b/libmultipath/parser.h
@@ -43,10 +43,11 @@ struct strbuf;
/* keyword definition */
typedef int print_fn(struct config *, struct strbuf *, const void *);
+typedef int handler_fn(struct config *, vector);
struct keyword {
char *string;
- int (*handler) (struct config *, vector);
+ handler_fn *handler;
print_fn *print;
vector sub;
int unique;
@@ -62,18 +63,14 @@ struct keyword {
for (i = 0; i < (k)->sub->allocated && ((p) = (k)->sub->slot[i]); i++)
/* Prototypes */
-extern int keyword_alloc(vector keywords, char *string,
- int (*handler) (struct config *, vector),
- print_fn *print,
- int unique);
+extern int keyword_alloc(vector keywords, char *string, handler_fn *handler,
+ print_fn *print, int unique);
#define install_keyword_root(str, h) keyword_alloc(keywords, str, h, NULL, 1)
extern void install_sublevel(void);
extern void install_sublevel_end(void);
-extern int _install_keyword(vector keywords, char *string,
- int (*handler) (struct config *, vector),
- print_fn *print,
- int unique);
+extern int _install_keyword(vector keywords, char *string, handler_fn *handler,
+ print_fn *print, int unique);
#define install_keyword(str, vec, pri) _install_keyword(keywords, str, vec, pri, 1)
#define install_keyword_multi(str, vec, pri) _install_keyword(keywords, str, vec, pri, 0)
extern void dump_keywords(vector keydump, int level);

View File

@ -0,0 +1,27 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 24 Sep 2021 13:13:31 -0500
Subject: [PATCH] libmultipath: print the correct file when parsing fails
Don't assume that parsing failed on multipath.conf
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/parser.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libmultipath/parser.c b/libmultipath/parser.c
index ebe1cbd9..d5595fb0 100644
--- a/libmultipath/parser.c
+++ b/libmultipath/parser.c
@@ -561,8 +561,8 @@ process_stream(struct config *conf, FILE *stream, vector keywords,
t = keyword->handler(conf, strvec);
r += t;
if (t)
- condlog(1, "multipath.conf +%d, parsing failed: %s",
- line_nr, buf);
+ condlog(1, "%s line %d, parsing failed: %s",
+ file, line_nr, buf);
}
if (keyword->sub) {

View File

@ -0,0 +1,527 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 24 Sep 2021 17:59:12 -0500
Subject: [PATCH] libmultipath: pass file and line number to keyword handlers
This will make it possible for the keyword handlers to print more useful
warning messages. It will be used by future patches.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 143 +++++++++++++++++++++++++-----------------
libmultipath/parser.c | 3 +-
libmultipath/parser.h | 2 +-
3 files changed, 90 insertions(+), 58 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 7a727389..eb2c44c0 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -29,7 +29,7 @@
#include "strbuf.h"
static int
-set_int(vector strvec, void *ptr)
+set_int(vector strvec, void *ptr, const char *file, int line_nr)
{
int *int_ptr = (int *)ptr;
char *buff, *eptr;
@@ -58,7 +58,7 @@ set_int(vector strvec, void *ptr)
}
static int
-set_uint(vector strvec, void *ptr)
+set_uint(vector strvec, void *ptr, const char *file, int line_nr)
{
unsigned int *uint_ptr = (unsigned int *)ptr;
char *buff, *eptr, *p;
@@ -90,7 +90,7 @@ set_uint(vector strvec, void *ptr)
}
static int
-set_str(vector strvec, void *ptr)
+set_str(vector strvec, void *ptr, const char *file, int line_nr)
{
char **str_ptr = (char **)ptr;
@@ -105,7 +105,7 @@ set_str(vector strvec, void *ptr)
}
static int
-set_yes_no(vector strvec, void *ptr)
+set_yes_no(vector strvec, void *ptr, const char *file, int line_nr)
{
char * buff;
int *int_ptr = (int *)ptr;
@@ -124,7 +124,7 @@ set_yes_no(vector strvec, void *ptr)
}
static int
-set_yes_no_undef(vector strvec, void *ptr)
+set_yes_no_undef(vector strvec, void *ptr, const char *file, int line_nr)
{
char * buff;
int *int_ptr = (int *)ptr;
@@ -187,9 +187,10 @@ static int print_yes_no_undef(struct strbuf *buff, long v)
#define declare_def_handler(option, function) \
static int \
-def_ ## option ## _handler (struct config *conf, vector strvec) \
+def_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
- return function (strvec, &conf->option); \
+ return function (strvec, &conf->option, file, line_nr); \
}
#define declare_def_snprint(option, function) \
@@ -224,12 +225,13 @@ snprint_def_ ## option (struct config *conf, struct strbuf *buff, \
#define declare_hw_handler(option, function) \
static int \
-hw_ ## option ## _handler (struct config *conf, vector strvec) \
+hw_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
struct hwentry * hwe = VECTOR_LAST_SLOT(conf->hwtable); \
if (!hwe) \
return 1; \
- return function (strvec, &hwe->option); \
+ return function (strvec, &hwe->option, file, line_nr); \
}
#define declare_hw_snprint(option, function) \
@@ -243,11 +245,12 @@ snprint_hw_ ## option (struct config *conf, struct strbuf *buff, \
#define declare_ovr_handler(option, function) \
static int \
-ovr_ ## option ## _handler (struct config *conf, vector strvec) \
+ovr_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
if (!conf->overrides) \
return 1; \
- return function (strvec, &conf->overrides->option); \
+ return function (strvec, &conf->overrides->option, file, line_nr); \
}
#define declare_ovr_snprint(option, function) \
@@ -260,12 +263,13 @@ snprint_ovr_ ## option (struct config *conf, struct strbuf *buff, \
#define declare_mp_handler(option, function) \
static int \
-mp_ ## option ## _handler (struct config *conf, vector strvec) \
+mp_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
struct mpentry * mpe = VECTOR_LAST_SLOT(conf->mptable); \
if (!mpe) \
return 1; \
- return function (strvec, &mpe->option); \
+ return function (strvec, &mpe->option, file, line_nr); \
}
#define declare_mp_snprint(option, function) \
@@ -277,9 +281,10 @@ snprint_mp_ ## option (struct config *conf, struct strbuf *buff, \
return function(buff, mpe->option); \
}
-static int checkint_handler(struct config *conf, vector strvec)
+static int checkint_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
- int rc = set_uint(strvec, &conf->checkint);
+ int rc = set_uint(strvec, &conf->checkint, file, line_nr);
if (rc)
return rc;
@@ -302,9 +307,10 @@ declare_def_snprint(reassign_maps, print_yes_no)
declare_def_handler(multipath_dir, set_str)
declare_def_snprint(multipath_dir, print_str)
-static int def_partition_delim_handler(struct config *conf, vector strvec)
+static int def_partition_delim_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
- int rc = set_str(strvec, &conf->partition_delim);
+ int rc = set_str(strvec, &conf->partition_delim, file, line_nr);
if (rc != 0)
return rc;
@@ -334,13 +340,13 @@ static const char * const find_multipaths_optvals[] = {
};
static int
-def_find_multipaths_handler(struct config *conf, vector strvec)
+def_find_multipaths_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
char *buff;
int i;
- if (set_yes_no_undef(strvec, &conf->find_multipaths) == 0 &&
- conf->find_multipaths != FIND_MULTIPATHS_UNDEF)
+ if (set_yes_no_undef(strvec, &conf->find_multipaths, file, line_nr) == 0 && conf->find_multipaths != FIND_MULTIPATHS_UNDEF)
return 0;
buff = set_value(strvec);
@@ -396,7 +402,8 @@ static int snprint_uid_attrs(struct config *conf, struct strbuf *buff,
return total;
}
-static int uid_attrs_handler(struct config *conf, vector strvec)
+static int uid_attrs_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
char *val;
@@ -597,7 +604,8 @@ declare_hw_handler(skip_kpartx, set_yes_no_undef)
declare_hw_snprint(skip_kpartx, print_yes_no_undef)
declare_mp_handler(skip_kpartx, set_yes_no_undef)
declare_mp_snprint(skip_kpartx, print_yes_no_undef)
-static int def_disable_changed_wwids_handler(struct config *conf, vector strvec)
+static int def_disable_changed_wwids_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
return 0;
}
@@ -629,20 +637,23 @@ declare_def_snprint_defstr(enable_foreign, print_str,
DEFAULT_ENABLE_FOREIGN)
static int
-def_config_dir_handler(struct config *conf, vector strvec)
+def_config_dir_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
/* this is only valid in the main config file */
if (conf->processed_main_config)
return 0;
- return set_str(strvec, &conf->config_dir);
+ return set_str(strvec, &conf->config_dir, file, line_nr);
}
declare_def_snprint(config_dir, print_str)
#define declare_def_attr_handler(option, function) \
static int \
-def_ ## option ## _handler (struct config *conf, vector strvec) \
+def_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
- return function (strvec, &conf->option, &conf->attribute_flags);\
+ return function (strvec, &conf->option, &conf->attribute_flags, \
+ file, line_nr); \
}
#define declare_def_attr_snprint(option, function) \
@@ -655,12 +666,14 @@ snprint_def_ ## option (struct config *conf, struct strbuf *buff, \
#define declare_mp_attr_handler(option, function) \
static int \
-mp_ ## option ## _handler (struct config *conf, vector strvec) \
+mp_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
struct mpentry * mpe = VECTOR_LAST_SLOT(conf->mptable); \
if (!mpe) \
return 1; \
- return function (strvec, &mpe->option, &mpe->attribute_flags); \
+ return function (strvec, &mpe->option, &mpe->attribute_flags, \
+ file, line_nr); \
}
#define declare_mp_attr_snprint(option, function) \
@@ -673,7 +686,7 @@ snprint_mp_ ## option (struct config *conf, struct strbuf *buff, \
}
static int
-set_mode(vector strvec, void *ptr, int *flags)
+set_mode(vector strvec, void *ptr, int *flags, const char *file, int line_nr)
{
mode_t mode;
mode_t *mode_ptr = (mode_t *)ptr;
@@ -694,7 +707,7 @@ set_mode(vector strvec, void *ptr, int *flags)
}
static int
-set_uid(vector strvec, void *ptr, int *flags)
+set_uid(vector strvec, void *ptr, int *flags, const char *file, int line_nr)
{
uid_t uid;
uid_t *uid_ptr = (uid_t *)ptr;
@@ -719,7 +732,7 @@ set_uid(vector strvec, void *ptr, int *flags)
}
static int
-set_gid(vector strvec, void *ptr, int *flags)
+set_gid(vector strvec, void *ptr, int *flags, const char *file, int line_nr)
{
gid_t gid;
gid_t *gid_ptr = (gid_t *)ptr;
@@ -786,7 +799,7 @@ declare_mp_attr_handler(gid, set_gid)
declare_mp_attr_snprint(gid, print_gid)
static int
-set_undef_off_zero(vector strvec, void *ptr)
+set_undef_off_zero(vector strvec, void *ptr, const char *file, int line_nr)
{
char * buff;
int *int_ptr = (int *)ptr;
@@ -827,7 +840,7 @@ declare_hw_handler(fast_io_fail, set_undef_off_zero)
declare_hw_snprint(fast_io_fail, print_undef_off_zero)
static int
-set_dev_loss(vector strvec, void *ptr)
+set_dev_loss(vector strvec, void *ptr, const char *file, int line_nr)
{
char * buff;
unsigned int *uint_ptr = (unsigned int *)ptr;
@@ -870,7 +883,7 @@ declare_hw_handler(eh_deadline, set_undef_off_zero)
declare_hw_snprint(eh_deadline, print_undef_off_zero)
static int
-set_pgpolicy(vector strvec, void *ptr)
+set_pgpolicy(vector strvec, void *ptr, const char *file, int line_nr)
{
char * buff;
int *int_ptr = (int *)ptr;
@@ -936,7 +949,8 @@ get_sys_max_fds(int *max_fds)
static int
-max_fds_handler(struct config *conf, vector strvec)
+max_fds_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
char * buff;
int r = 0, max_fds;
@@ -981,7 +995,7 @@ snprint_max_fds (struct config *conf, struct strbuf *buff, const void *data)
}
static int
-set_rr_weight(vector strvec, void *ptr)
+set_rr_weight(vector strvec, void *ptr, const char *file, int line_nr)
{
int *int_ptr = (int *)ptr;
char * buff;
@@ -1025,7 +1039,7 @@ declare_mp_handler(rr_weight, set_rr_weight)
declare_mp_snprint(rr_weight, print_rr_weight)
static int
-set_pgfailback(vector strvec, void *ptr)
+set_pgfailback(vector strvec, void *ptr, const char *file, int line_nr)
{
int *int_ptr = (int *)ptr;
char * buff;
@@ -1075,7 +1089,7 @@ declare_mp_handler(pgfailback, set_pgfailback)
declare_mp_snprint(pgfailback, print_pgfailback)
static int
-no_path_retry_helper(vector strvec, void *ptr)
+no_path_retry_helper(vector strvec, void *ptr, const char *file, int line_nr)
{
int *int_ptr = (int *)ptr;
char * buff;
@@ -1120,7 +1134,8 @@ declare_mp_handler(no_path_retry, no_path_retry_helper)
declare_mp_snprint(no_path_retry, print_no_path_retry)
static int
-def_log_checker_err_handler(struct config *conf, vector strvec)
+def_log_checker_err_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
char * buff;
@@ -1193,7 +1208,8 @@ print_reservation_key(struct strbuf *buff,
}
static int
-def_reservation_key_handler(struct config *conf, vector strvec)
+def_reservation_key_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
return set_reservation_key(strvec, &conf->reservation_key,
&conf->sa_flags,
@@ -1209,7 +1225,8 @@ snprint_def_reservation_key (struct config *conf, struct strbuf *buff,
}
static int
-mp_reservation_key_handler(struct config *conf, vector strvec)
+mp_reservation_key_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
struct mpentry * mpe = VECTOR_LAST_SLOT(conf->mptable);
if (!mpe)
@@ -1229,7 +1246,7 @@ snprint_mp_reservation_key (struct config *conf, struct strbuf *buff,
}
static int
-set_off_int_undef(vector strvec, void *ptr)
+set_off_int_undef(vector strvec, void *ptr, const char *file, int line_nr)
{
int *int_ptr = (int *)ptr;
char * buff;
@@ -1370,7 +1387,8 @@ declare_hw_snprint(recheck_wwid, print_yes_no_undef)
static int
-def_uxsock_timeout_handler(struct config *conf, vector strvec)
+def_uxsock_timeout_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
unsigned int uxsock_timeout;
char *buff;
@@ -1390,7 +1408,8 @@ def_uxsock_timeout_handler(struct config *conf, vector strvec)
}
static int
-hw_vpd_vendor_handler(struct config *conf, vector strvec)
+hw_vpd_vendor_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
int i;
char *buff;
@@ -1430,7 +1449,8 @@ snprint_hw_vpd_vendor(struct config *conf, struct strbuf *buff,
* blacklist block handlers
*/
static int
-blacklist_handler(struct config *conf, vector strvec)
+blacklist_handler(struct config *conf, vector strvec, const char*file,
+ int line_nr)
{
if (!conf->blist_devnode)
conf->blist_devnode = vector_alloc();
@@ -1452,7 +1472,8 @@ blacklist_handler(struct config *conf, vector strvec)
}
static int
-blacklist_exceptions_handler(struct config *conf, vector strvec)
+blacklist_exceptions_handler(struct config *conf, vector strvec,
+ const char *file, int line_nr)
{
if (!conf->elist_devnode)
conf->elist_devnode = vector_alloc();
@@ -1475,7 +1496,8 @@ blacklist_exceptions_handler(struct config *conf, vector strvec)
#define declare_ble_handler(option) \
static int \
-ble_ ## option ## _handler (struct config *conf, vector strvec) \
+ble_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
char *buff; \
int rc; \
@@ -1494,7 +1516,8 @@ ble_ ## option ## _handler (struct config *conf, vector strvec) \
#define declare_ble_device_handler(name, option, vend, prod) \
static int \
-ble_ ## option ## _ ## name ## _handler (struct config *conf, vector strvec) \
+ble_ ## option ## _ ## name ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
{ \
char * buff; \
int rc; \
@@ -1536,13 +1559,15 @@ snprint_ble_simple (struct config *conf, struct strbuf *buff, const void *data)
}
static int
-ble_device_handler(struct config *conf, vector strvec)
+ble_device_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
return alloc_ble_device(conf->blist_device);
}
static int
-ble_except_device_handler(struct config *conf, vector strvec)
+ble_except_device_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
return alloc_ble_device(conf->elist_device);
}
@@ -1574,7 +1599,8 @@ static int snprint_bled_product(struct config *conf, struct strbuf *buff,
* devices block handlers
*/
static int
-devices_handler(struct config *conf, vector strvec)
+devices_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
if (!conf->hwtable)
conf->hwtable = vector_alloc();
@@ -1586,7 +1612,8 @@ devices_handler(struct config *conf, vector strvec)
}
static int
-device_handler(struct config *conf, vector strvec)
+device_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
struct hwentry * hwe;
@@ -1623,7 +1650,8 @@ declare_hw_snprint(hwhandler, print_str)
* overrides handlers
*/
static int
-overrides_handler(struct config *conf, vector strvec)
+overrides_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
if (!conf->overrides)
conf->overrides = alloc_hwe();
@@ -1640,7 +1668,8 @@ overrides_handler(struct config *conf, vector strvec)
* multipaths block handlers
*/
static int
-multipaths_handler(struct config *conf, vector strvec)
+multipaths_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
if (!conf->mptable)
conf->mptable = vector_alloc();
@@ -1652,7 +1681,8 @@ multipaths_handler(struct config *conf, vector strvec)
}
static int
-multipath_handler(struct config *conf, vector strvec)
+multipath_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
struct mpentry * mpe;
@@ -1681,7 +1711,8 @@ declare_mp_snprint(alias, print_str)
*/
static int
-deprecated_handler(struct config *conf, vector strvec)
+deprecated_handler(struct config *conf, vector strvec, const char *file,
+ int line_nr)
{
char * buff;
diff --git a/libmultipath/parser.c b/libmultipath/parser.c
index d5595fb0..68262d0e 100644
--- a/libmultipath/parser.c
+++ b/libmultipath/parser.c
@@ -558,7 +558,8 @@ process_stream(struct config *conf, FILE *stream, vector keywords,
goto out;
}
if (keyword->handler) {
- t = keyword->handler(conf, strvec);
+ t = keyword->handler(conf, strvec, file,
+ line_nr);
r += t;
if (t)
condlog(1, "%s line %d, parsing failed: %s",
diff --git a/libmultipath/parser.h b/libmultipath/parser.h
index 3452bde1..11ea2278 100644
--- a/libmultipath/parser.h
+++ b/libmultipath/parser.h
@@ -43,7 +43,7 @@ struct strbuf;
/* keyword definition */
typedef int print_fn(struct config *, struct strbuf *, const void *);
-typedef int handler_fn(struct config *, vector);
+typedef int handler_fn(struct config *, vector, const char *file, int line_nr);
struct keyword {
char *string;

View File

@ -0,0 +1,250 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 28 Sep 2021 15:59:19 -0500
Subject: [PATCH] libmultipath: make set_int take a range for valid values
If a value outside of the valid range is passed to set_int, it caps the
value at appropriate limit, and issues a warning.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 121 +++++++++++++++++++++++++++-----------------
1 file changed, 75 insertions(+), 46 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index eb2c44c0..57b6a7b6 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -29,7 +29,8 @@
#include "strbuf.h"
static int
-set_int(vector strvec, void *ptr, const char *file, int line_nr)
+set_int(vector strvec, void *ptr, int min, int max, const char *file,
+ int line_nr)
{
int *int_ptr = (int *)ptr;
char *buff, *eptr;
@@ -44,11 +45,17 @@ set_int(vector strvec, void *ptr, const char *file, int line_nr)
if (eptr > buff)
while (isspace(*eptr))
eptr++;
- if (*buff == '\0' || *eptr != '\0' || res > INT_MAX || res < INT_MIN) {
- condlog(1, "%s: invalid value for %s: \"%s\"",
- __func__, (char*)VECTOR_SLOT(strvec, 0), buff);
+ if (*buff == '\0' || *eptr != '\0') {
+ condlog(1, "%s line %d, invalid value for %s: \"%s\"",
+ file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
rc = 1;
} else {
+ if (res > max || res < min) {
+ res = (res > max) ? max : min;
+ condlog(1, "%s line %d, value for %s too %s, capping at %ld",
+ file, line_nr, (char*)VECTOR_SLOT(strvec, 0),
+ (res == max)? "large" : "small", res);
+ }
rc = 0;
*int_ptr = res;
}
@@ -77,8 +84,8 @@ set_uint(vector strvec, void *ptr, const char *file, int line_nr)
while (isspace(*eptr))
eptr++;
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);
+ condlog(1, "%s line %d, invalid value for %s: \"%s\"",
+ file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
rc = 1;
} else {
rc = 0;
@@ -193,6 +200,14 @@ def_ ## option ## _handler (struct config *conf, vector strvec, \
return function (strvec, &conf->option, file, line_nr); \
}
+#define declare_def_range_handler(option, minval, maxval) \
+static int \
+def_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
+{ \
+ return set_int(strvec, &conf->option, minval, maxval, file, line_nr); \
+}
+
#define declare_def_snprint(option, function) \
static int \
snprint_def_ ## option (struct config *conf, struct strbuf *buff, \
@@ -234,6 +249,18 @@ hw_ ## option ## _handler (struct config *conf, vector strvec, \
return function (strvec, &hwe->option, file, line_nr); \
}
+#define declare_hw_range_handler(option, minval, maxval) \
+static int \
+hw_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
+{ \
+ struct hwentry * hwe = VECTOR_LAST_SLOT(conf->hwtable); \
+ if (!hwe) \
+ return 1; \
+ return set_int(strvec, &hwe->option, minval, maxval, file, line_nr); \
+}
+
+
#define declare_hw_snprint(option, function) \
static int \
snprint_hw_ ## option (struct config *conf, struct strbuf *buff, \
@@ -253,6 +280,17 @@ ovr_ ## option ## _handler (struct config *conf, vector strvec, \
return function (strvec, &conf->overrides->option, file, line_nr); \
}
+#define declare_ovr_range_handler(option, minval, maxval) \
+static int \
+ovr_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
+{ \
+ if (!conf->overrides) \
+ return 1; \
+ return set_int(strvec, &conf->overrides->option, minval, maxval, \
+ file, line_nr); \
+}
+
#define declare_ovr_snprint(option, function) \
static int \
snprint_ovr_ ## option (struct config *conf, struct strbuf *buff, \
@@ -272,6 +310,17 @@ mp_ ## option ## _handler (struct config *conf, vector strvec, \
return function (strvec, &mpe->option, file, line_nr); \
}
+#define declare_mp_range_handler(option, minval, maxval) \
+static int \
+mp_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
+{ \
+ struct mpentry * mpe = VECTOR_LAST_SLOT(conf->mptable); \
+ if (!mpe) \
+ return 1; \
+ return set_int(strvec, &mpe->option, minval, maxval, file, line_nr); \
+}
+
#define declare_mp_snprint(option, function) \
static int \
snprint_mp_ ## option (struct config *conf, struct strbuf *buff, \
@@ -298,7 +347,7 @@ declare_def_snprint(checkint, print_int)
declare_def_handler(max_checkint, set_uint)
declare_def_snprint(max_checkint, print_int)
-declare_def_handler(verbosity, set_int)
+declare_def_range_handler(verbosity, 0, MAX_VERBOSITY)
declare_def_snprint(verbosity, print_int)
declare_def_handler(reassign_maps, set_yes_no)
@@ -473,22 +522,22 @@ declare_ovr_snprint(checker_name, print_str)
declare_hw_handler(checker_name, set_str)
declare_hw_snprint(checker_name, print_str)
-declare_def_handler(minio, set_int)
+declare_def_range_handler(minio, 0, INT_MAX)
declare_def_snprint_defint(minio, print_int, DEFAULT_MINIO)
-declare_ovr_handler(minio, set_int)
+declare_ovr_range_handler(minio, 0, INT_MAX)
declare_ovr_snprint(minio, print_nonzero)
-declare_hw_handler(minio, set_int)
+declare_hw_range_handler(minio, 0, INT_MAX)
declare_hw_snprint(minio, print_nonzero)
-declare_mp_handler(minio, set_int)
+declare_mp_range_handler(minio, 0, INT_MAX)
declare_mp_snprint(minio, print_nonzero)
-declare_def_handler(minio_rq, set_int)
+declare_def_range_handler(minio_rq, 0, INT_MAX)
declare_def_snprint_defint(minio_rq, print_int, DEFAULT_MINIO_RQ)
-declare_ovr_handler(minio_rq, set_int)
+declare_ovr_range_handler(minio_rq, 0, INT_MAX)
declare_ovr_snprint(minio_rq, print_nonzero)
-declare_hw_handler(minio_rq, set_int)
+declare_hw_range_handler(minio_rq, 0, INT_MAX)
declare_hw_snprint(minio_rq, print_nonzero)
-declare_mp_handler(minio_rq, set_int)
+declare_mp_range_handler(minio_rq, 0, INT_MAX)
declare_mp_snprint(minio_rq, print_nonzero)
declare_def_handler(queue_without_daemon, set_yes_no)
@@ -512,7 +561,7 @@ snprint_def_queue_without_daemon(struct config *conf, struct strbuf *buff,
return append_strbuf_quoted(buff, qwd);
}
-declare_def_handler(checker_timeout, set_int)
+declare_def_range_handler(checker_timeout, 0, INT_MAX)
declare_def_snprint(checker_timeout, print_nonzero)
declare_def_handler(allow_usb_devices, set_yes_no)
@@ -583,13 +632,13 @@ declare_hw_snprint(deferred_remove, print_yes_no_undef)
declare_mp_handler(deferred_remove, set_yes_no_undef)
declare_mp_snprint(deferred_remove, print_yes_no_undef)
-declare_def_handler(retrigger_tries, set_int)
+declare_def_range_handler(retrigger_tries, 0, INT_MAX)
declare_def_snprint(retrigger_tries, print_int)
-declare_def_handler(retrigger_delay, set_int)
+declare_def_range_handler(retrigger_delay, 0, INT_MAX)
declare_def_snprint(retrigger_delay, print_int)
-declare_def_handler(uev_wait_timeout, set_int)
+declare_def_range_handler(uev_wait_timeout, 0, INT_MAX)
declare_def_snprint(uev_wait_timeout, print_int)
declare_def_handler(strict_timing, set_yes_no)
@@ -616,19 +665,19 @@ static int snprint_def_disable_changed_wwids(struct config *conf,
return print_ignored(buff);
}
-declare_def_handler(remove_retries, set_int)
+declare_def_range_handler(remove_retries, 0, INT_MAX)
declare_def_snprint(remove_retries, print_int)
-declare_def_handler(max_sectors_kb, set_int)
+declare_def_range_handler(max_sectors_kb, 0, INT_MAX)
declare_def_snprint(max_sectors_kb, print_nonzero)
-declare_ovr_handler(max_sectors_kb, set_int)
+declare_ovr_range_handler(max_sectors_kb, 0, INT_MAX)
declare_ovr_snprint(max_sectors_kb, print_nonzero)
-declare_hw_handler(max_sectors_kb, set_int)
+declare_hw_range_handler(max_sectors_kb, 0, INT_MAX)
declare_hw_snprint(max_sectors_kb, print_nonzero)
-declare_mp_handler(max_sectors_kb, set_int)
+declare_mp_range_handler(max_sectors_kb, 0, INT_MAX)
declare_mp_snprint(max_sectors_kb, print_nonzero)
-declare_def_handler(find_multipaths_timeout, set_int)
+declare_def_range_handler(find_multipaths_timeout, INT_MIN, INT_MAX)
declare_def_snprint_defint(find_multipaths_timeout, print_int,
DEFAULT_FIND_MULTIPATHS_TIMEOUT)
@@ -1385,27 +1434,7 @@ declare_ovr_snprint(recheck_wwid, print_yes_no_undef)
declare_hw_handler(recheck_wwid, set_yes_no_undef)
declare_hw_snprint(recheck_wwid, print_yes_no_undef)
-
-static int
-def_uxsock_timeout_handler(struct config *conf, vector strvec, const char *file,
- int line_nr)
-{
- unsigned int uxsock_timeout;
- char *buff;
-
- buff = set_value(strvec);
- if (!buff)
- return 1;
-
- if (sscanf(buff, "%u", &uxsock_timeout) == 1 &&
- uxsock_timeout > DEFAULT_REPLY_TIMEOUT)
- conf->uxsock_timeout = uxsock_timeout;
- else
- conf->uxsock_timeout = DEFAULT_REPLY_TIMEOUT;
-
- free(buff);
- return 0;
-}
+declare_def_range_handler(uxsock_timeout, DEFAULT_REPLY_TIMEOUT, INT_MAX)
static int
hw_vpd_vendor_handler(struct config *conf, vector strvec, const char *file,

View File

@ -0,0 +1,170 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 29 Sep 2021 12:56:04 -0500
Subject: [PATCH] libmultipath: improve checks for set_str
multipath always requires absolute pathnames, so make sure all file and
directory names start with a slash. Also check that the directories
exist. Finally, some strings, like the alias, will be used in paths.
These must not contain the slash character '/', since it is a forbidden
character in file/directory names. This patch adds seperate handlers for
these three cases. If a config line is invalid, these handlers retain
the existing config string, if any.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 88 +++++++++++++++++++++++++++++++++++++++------
1 file changed, 78 insertions(+), 10 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 57b6a7b6..149d3348 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -5,6 +5,8 @@
* Copyright (c) 2005 Kiyoshi Ueda, NEC
*/
#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
#include <pwd.h>
#include <string.h>
#include "checkers.h"
@@ -111,6 +113,72 @@ set_str(vector strvec, void *ptr, const char *file, int line_nr)
return 0;
}
+static int
+set_dir(vector strvec, void *ptr, const char *file, int line_nr)
+{
+ char **str_ptr = (char **)ptr;
+ char *old_str = *str_ptr;
+ struct stat sb;
+
+ *str_ptr = set_value(strvec);
+ if (!*str_ptr) {
+ free(old_str);
+ return 1;
+ }
+ if ((*str_ptr)[0] != '/'){
+ condlog(1, "%s line %d, %s is not an absolute directory path. Ignoring", file, line_nr, *str_ptr);
+ *str_ptr = old_str;
+ } else {
+ if (stat(*str_ptr, &sb) == 0 && S_ISDIR(sb.st_mode))
+ free(old_str);
+ else {
+ condlog(1, "%s line %d, %s is not an existing directory. Ignoring", file, line_nr, *str_ptr);
+ *str_ptr = old_str;
+ }
+ }
+ return 0;
+}
+
+static int
+set_path(vector strvec, void *ptr, const char *file, int line_nr)
+{
+ char **str_ptr = (char **)ptr;
+ char *old_str = *str_ptr;
+
+ *str_ptr = set_value(strvec);
+ if (!*str_ptr) {
+ free(old_str);
+ return 1;
+ }
+ if ((*str_ptr)[0] != '/'){
+ condlog(1, "%s line %d, %s is not an absolute path. Ignoring",
+ file, line_nr, *str_ptr);
+ *str_ptr = old_str;
+ } else
+ free(old_str);
+ return 0;
+}
+
+static int
+set_str_noslash(vector strvec, void *ptr, const char *file, int line_nr)
+{
+ char **str_ptr = (char **)ptr;
+ char *old_str = *str_ptr;
+
+ *str_ptr = set_value(strvec);
+ if (!*str_ptr) {
+ free(old_str);
+ return 1;
+ }
+ if (strchr(*str_ptr, '/')) {
+ condlog(1, "%s line %d, %s cannot contain a slash. Ignoring",
+ file, line_nr, *str_ptr);
+ *str_ptr = old_str;
+ } else
+ free(old_str);
+ return 0;
+}
+
static int
set_yes_no(vector strvec, void *ptr, const char *file, int line_nr)
{
@@ -353,13 +421,13 @@ declare_def_snprint(verbosity, print_int)
declare_def_handler(reassign_maps, set_yes_no)
declare_def_snprint(reassign_maps, print_yes_no)
-declare_def_handler(multipath_dir, set_str)
+declare_def_handler(multipath_dir, set_dir)
declare_def_snprint(multipath_dir, print_str)
static int def_partition_delim_handler(struct config *conf, vector strvec,
const char *file, int line_nr)
{
- int rc = set_str(strvec, &conf->partition_delim, file, line_nr);
+ int rc = set_str_noslash(strvec, &conf->partition_delim, file, line_nr);
if (rc != 0)
return rc;
@@ -490,11 +558,11 @@ declare_hw_snprint(prio_name, print_str)
declare_mp_handler(prio_name, set_str)
declare_mp_snprint(prio_name, print_str)
-declare_def_handler(alias_prefix, set_str)
+declare_def_handler(alias_prefix, set_str_noslash)
declare_def_snprint_defstr(alias_prefix, print_str, DEFAULT_ALIAS_PREFIX)
-declare_ovr_handler(alias_prefix, set_str)
+declare_ovr_handler(alias_prefix, set_str_noslash)
declare_ovr_snprint(alias_prefix, print_str)
-declare_hw_handler(alias_prefix, set_str)
+declare_hw_handler(alias_prefix, set_str_noslash)
declare_hw_snprint(alias_prefix, print_str)
declare_def_handler(prio_args, set_str)
@@ -586,13 +654,13 @@ declare_hw_snprint(user_friendly_names, print_yes_no_undef)
declare_mp_handler(user_friendly_names, set_yes_no_undef)
declare_mp_snprint(user_friendly_names, print_yes_no_undef)
-declare_def_handler(bindings_file, set_str)
+declare_def_handler(bindings_file, set_path)
declare_def_snprint(bindings_file, print_str)
-declare_def_handler(wwids_file, set_str)
+declare_def_handler(wwids_file, set_path)
declare_def_snprint(wwids_file, print_str)
-declare_def_handler(prkeys_file, set_str)
+declare_def_handler(prkeys_file, set_path)
declare_def_snprint(prkeys_file, print_str)
declare_def_handler(retain_hwhandler, set_yes_no_undef)
@@ -692,7 +760,7 @@ def_config_dir_handler(struct config *conf, vector strvec, const char *file,
/* this is only valid in the main config file */
if (conf->processed_main_config)
return 0;
- return set_str(strvec, &conf->config_dir, file, line_nr);
+ return set_path(strvec, &conf->config_dir, file, line_nr);
}
declare_def_snprint(config_dir, print_str)
@@ -1732,7 +1800,7 @@ multipath_handler(struct config *conf, vector strvec, const char *file,
declare_mp_handler(wwid, set_str)
declare_mp_snprint(wwid, print_str)
-declare_mp_handler(alias, set_str)
+declare_mp_handler(alias, set_str_noslash)
declare_mp_snprint(alias, print_str)
/*

View File

@ -0,0 +1,114 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 10 Nov 2021 18:34:08 -0600
Subject: [PATCH] libmultipath: deprecate file and directory config options
Having multipath able to select pathnames for the files and directories
it needs causes unnecessary maintainer headaches. Mark these as
deprecated, but still support them for now.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 19 +++++++++++++++----
multipath/multipath.conf.5 | 5 +++++
2 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 149d3348..d14be340 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -268,6 +268,15 @@ def_ ## option ## _handler (struct config *conf, vector strvec, \
return function (strvec, &conf->option, file, line_nr); \
}
+#define declare_def_warn_handler(option, function) \
+static int \
+def_ ## option ## _handler (struct config *conf, vector strvec, \
+ const char *file, int line_nr) \
+{ \
+ condlog(2, "%s line %d, \"" #option "\" is deprecated and will be disabled in a future release", file, line_nr); \
+ return function (strvec, &conf->option, file, line_nr); \
+}
+
#define declare_def_range_handler(option, minval, maxval) \
static int \
def_ ## option ## _handler (struct config *conf, vector strvec, \
@@ -421,7 +430,7 @@ declare_def_snprint(verbosity, print_int)
declare_def_handler(reassign_maps, set_yes_no)
declare_def_snprint(reassign_maps, print_yes_no)
-declare_def_handler(multipath_dir, set_dir)
+declare_def_warn_handler(multipath_dir, set_dir)
declare_def_snprint(multipath_dir, print_str)
static int def_partition_delim_handler(struct config *conf, vector strvec,
@@ -654,13 +663,13 @@ declare_hw_snprint(user_friendly_names, print_yes_no_undef)
declare_mp_handler(user_friendly_names, set_yes_no_undef)
declare_mp_snprint(user_friendly_names, print_yes_no_undef)
-declare_def_handler(bindings_file, set_path)
+declare_def_warn_handler(bindings_file, set_path)
declare_def_snprint(bindings_file, print_str)
-declare_def_handler(wwids_file, set_path)
+declare_def_warn_handler(wwids_file, set_path)
declare_def_snprint(wwids_file, print_str)
-declare_def_handler(prkeys_file, set_path)
+declare_def_warn_handler(prkeys_file, set_path)
declare_def_snprint(prkeys_file, print_str)
declare_def_handler(retain_hwhandler, set_yes_no_undef)
@@ -760,6 +769,8 @@ def_config_dir_handler(struct config *conf, vector strvec, const char *file,
/* this is only valid in the main config file */
if (conf->processed_main_config)
return 0;
+ condlog(2, "%s line %d, \"config_dir\" is deprecated and will be disabled in a future release",
+ file, line_nr);
return set_path(strvec, &conf->config_dir, file, line_nr);
}
declare_def_snprint(config_dir, print_str)
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index dd9f4dc7..7f85f766 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -178,6 +178,7 @@ The default is: \fBno\fR
.
.TP
.B multipath_dir
+This option is deprecated, and will be removed in a future release.
Directory where the dynamic shared objects are stored. Defined at compile time,
commonly \fI/lib64/multipath/\fR or \fI/lib/multipath/\fR.
.RS
@@ -742,6 +743,7 @@ The default is: \fB<unset>\fR
.
.TP
.B bindings_file
+This option is deprecated, and will be removed in a future release.
The full pathname of the binding file to be used when the user_friendly_names
option is set.
.RS
@@ -752,6 +754,7 @@ The default is: \fB/etc/multipath/bindings\fR
.
.TP
.B wwids_file
+This option is deprecated, and will be removed in a future release.
The full pathname of the WWIDs file, which is used by multipath to keep track
of the WWIDs for LUNs it has created multipath devices on in the past.
.RS
@@ -762,6 +765,7 @@ The default is: \fB/etc/multipath/wwids\fR
.
.TP
.B prkeys_file
+This option is deprecated, and will be removed in a future release.
The full pathname of the prkeys file, which is used by multipathd to keep
track of the persistent reservation key used for a specific WWID, when
\fIreservation_key\fR is set to \fBfile\fR.
@@ -933,6 +937,7 @@ The default is: \fB<unset>\fR
.
.TP
.B config_dir
+This option is deprecated, and will be removed in a future release.
If set to anything other than "", multipath will search this directory
alphabetically for file ending in ".conf" and it will read configuration
information from them, just as if it was in \fI/etc/multipath.conf\fR.

View File

@ -0,0 +1,191 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Mon, 4 Oct 2021 15:27:36 -0500
Subject: [PATCH] libmultipath: split set_int to enable reuse
Split the code that does the actual value parsing out of set_int(), into
a helper function, do_set_int(), so that it can be used by other
handlers. These functions no longer set the config value at all, when
they have invalid input.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 82 +++++++++++++++++++++++++--------------------
1 file changed, 46 insertions(+), 36 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index d14be340..68647061 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -31,17 +31,12 @@
#include "strbuf.h"
static int
-set_int(vector strvec, void *ptr, int min, int max, const char *file,
- int line_nr)
+do_set_int(vector strvec, void *ptr, int min, int max, const char *file,
+ int line_nr, char *buff)
{
int *int_ptr = (int *)ptr;
- char *buff, *eptr;
+ char *eptr;
long res;
- int rc;
-
- buff = set_value(strvec);
- if (!buff)
- return 1;
res = strtol(buff, &eptr, 10);
if (eptr > buff)
@@ -50,17 +45,30 @@ set_int(vector strvec, void *ptr, int min, int max, const char *file,
if (*buff == '\0' || *eptr != '\0') {
condlog(1, "%s line %d, invalid value for %s: \"%s\"",
file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
- rc = 1;
- } else {
- if (res > max || res < min) {
- res = (res > max) ? max : min;
- condlog(1, "%s line %d, value for %s too %s, capping at %ld",
+ return 1;
+ }
+ if (res > max || res < min) {
+ res = (res > max) ? max : min;
+ condlog(1, "%s line %d, value for %s too %s, capping at %ld",
file, line_nr, (char*)VECTOR_SLOT(strvec, 0),
- (res == max)? "large" : "small", res);
- }
- rc = 0;
- *int_ptr = res;
+ (res == max)? "large" : "small", res);
}
+ *int_ptr = res;
+ return 0;
+}
+
+static int
+set_int(vector strvec, void *ptr, int min, int max, const char *file,
+ int line_nr)
+{
+ char *buff;
+ int rc;
+
+ buff = set_value(strvec);
+ if (!buff)
+ return 1;
+
+ rc = do_set_int(strvec, ptr, min, max, file, line_nr, buff);
FREE(buff);
return rc;
@@ -929,6 +937,7 @@ declare_mp_attr_snprint(gid, print_gid)
static int
set_undef_off_zero(vector strvec, void *ptr, const char *file, int line_nr)
{
+ int rc = 0;
char * buff;
int *int_ptr = (int *)ptr;
@@ -938,10 +947,10 @@ set_undef_off_zero(vector strvec, void *ptr, const char *file, int line_nr)
if (strcmp(buff, "off") == 0)
*int_ptr = UOZ_OFF;
- else if (sscanf(buff, "%d", int_ptr) != 1 ||
- *int_ptr < UOZ_ZERO)
- *int_ptr = UOZ_UNDEF;
- else if (*int_ptr == 0)
+ else
+ rc = do_set_int(strvec, int_ptr, 0, INT_MAX, file, line_nr,
+ buff);
+ if (rc == 0 && *int_ptr == 0)
*int_ptr = UOZ_ZERO;
FREE(buff);
@@ -1093,14 +1102,12 @@ max_fds_handler(struct config *conf, vector strvec, const char *file,
/* Assume safe limit */
max_fds = 4096;
}
- if (strlen(buff) == 3 &&
- !strcmp(buff, "max"))
- conf->max_fds = max_fds;
- else
- conf->max_fds = atoi(buff);
-
- if (conf->max_fds > max_fds)
+ if (!strcmp(buff, "max")) {
conf->max_fds = max_fds;
+ r = 0;
+ } else
+ r = do_set_int(strvec, &conf->max_fds, 0, max_fds, file,
+ line_nr, buff);
FREE(buff);
@@ -1169,6 +1176,7 @@ declare_mp_snprint(rr_weight, print_rr_weight)
static int
set_pgfailback(vector strvec, void *ptr, const char *file, int line_nr)
{
+ int rc = 0;
int *int_ptr = (int *)ptr;
char * buff;
@@ -1183,11 +1191,11 @@ set_pgfailback(vector strvec, void *ptr, const char *file, int line_nr)
else if (strlen(buff) == 10 && !strcmp(buff, "followover"))
*int_ptr = -FAILBACK_FOLLOWOVER;
else
- *int_ptr = atoi(buff);
+ rc = do_set_int(strvec, ptr, 0, INT_MAX, file, line_nr, buff);
FREE(buff);
- return 0;
+ return rc;
}
int
@@ -1219,6 +1227,7 @@ declare_mp_snprint(pgfailback, print_pgfailback)
static int
no_path_retry_helper(vector strvec, void *ptr, const char *file, int line_nr)
{
+ int rc = 0;
int *int_ptr = (int *)ptr;
char * buff;
@@ -1230,11 +1239,11 @@ no_path_retry_helper(vector strvec, void *ptr, const char *file, int line_nr)
*int_ptr = NO_PATH_RETRY_FAIL;
else if (!strcmp(buff, "queue"))
*int_ptr = NO_PATH_RETRY_QUEUE;
- else if ((*int_ptr = atoi(buff)) < 1)
- *int_ptr = NO_PATH_RETRY_UNDEF;
+ else
+ rc = do_set_int(strvec, ptr, 1, INT_MAX, file, line_nr, buff);
FREE(buff);
- return 0;
+ return rc;
}
int
@@ -1376,6 +1385,7 @@ snprint_mp_reservation_key (struct config *conf, struct strbuf *buff,
static int
set_off_int_undef(vector strvec, void *ptr, const char *file, int line_nr)
{
+ int rc =0;
int *int_ptr = (int *)ptr;
char * buff;
@@ -1385,11 +1395,11 @@ set_off_int_undef(vector strvec, void *ptr, const char *file, int line_nr)
if (!strcmp(buff, "no") || !strcmp(buff, "0"))
*int_ptr = NU_NO;
- else if ((*int_ptr = atoi(buff)) < 1)
- *int_ptr = NU_UNDEF;
+ else
+ rc = do_set_int(strvec, ptr, 1, INT_MAX, file, line_nr, buff);
FREE(buff);
- return 0;
+ return rc;
}
int

View File

@ -0,0 +1,201 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Mon, 4 Oct 2021 16:52:55 -0500
Subject: [PATCH] libmultipath: cleanup invalid config handling
Add error reporting to the remaining config handlers. If the value is
invalid, do not change the existing config option's value. Also print
an error whenever 0 is returned for an invalid value. When the handler
returns 1, config processing already fails with an error message.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 73 +++++++++++++++++++++++++++++++--------------
1 file changed, 51 insertions(+), 22 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index 68647061..c534d703 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -199,8 +199,11 @@ set_yes_no(vector strvec, void *ptr, const char *file, int line_nr)
if (strcmp(buff, "yes") == 0 || strcmp(buff, "1") == 0)
*int_ptr = YN_YES;
- else
+ else if (strcmp(buff, "no") == 0 || strcmp(buff, "0") == 0)
*int_ptr = YN_NO;
+ else
+ condlog(1, "%s line %d, invalid value for %s: \"%s\"",
+ file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
FREE(buff);
return 0;
@@ -221,7 +224,8 @@ set_yes_no_undef(vector strvec, void *ptr, const char *file, int line_nr)
else if (strcmp(buff, "yes") == 0 || strcmp(buff, "1") == 0)
*int_ptr = YNU_YES;
else
- *int_ptr = YNU_UNDEF;
+ condlog(1, "%s line %d, invalid value for %s: \"%s\"",
+ file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
FREE(buff);
return 0;
@@ -480,9 +484,6 @@ def_find_multipaths_handler(struct config *conf, vector strvec,
char *buff;
int i;
- if (set_yes_no_undef(strvec, &conf->find_multipaths, file, line_nr) == 0 && conf->find_multipaths != FIND_MULTIPATHS_UNDEF)
- return 0;
-
buff = set_value(strvec);
if (!buff)
return 1;
@@ -495,9 +496,14 @@ def_find_multipaths_handler(struct config *conf, vector strvec,
}
}
- if (conf->find_multipaths == YNU_UNDEF) {
- condlog(0, "illegal value for find_multipaths: %s", buff);
- conf->find_multipaths = DEFAULT_FIND_MULTIPATHS;
+ if (i >= __FIND_MULTIPATHS_LAST) {
+ if (strcmp(buff, "no") == 0 || strcmp(buff, "0") == 0)
+ conf->find_multipaths = FIND_MULTIPATHS_OFF;
+ else if (strcmp(buff, "yes") == 0 || strcmp(buff, "1") == 0)
+ conf->find_multipaths = FIND_MULTIPATHS_ON;
+ else
+ condlog(1, "%s line %d, invalid value for find_multipaths: \"%s\"",
+ file, line_nr, buff);
}
FREE(buff);
@@ -546,8 +552,10 @@ static int uid_attrs_handler(struct config *conf, vector strvec,
if (!val)
return 1;
if (parse_uid_attrs(val, conf))
- condlog(1, "error parsing uid_attrs: \"%s\"", val);
- condlog(3, "parsed %d uid_attrs", VECTOR_SIZE(&conf->uid_attrs));
+ condlog(1, "%s line %d,error parsing uid_attrs: \"%s\"", file,
+ line_nr, val);
+ else
+ condlog(4, "parsed %d uid_attrs", VECTOR_SIZE(&conf->uid_attrs));
FREE(val);
return 0;
}
@@ -775,8 +783,11 @@ def_config_dir_handler(struct config *conf, vector strvec, const char *file,
int line_nr)
{
/* this is only valid in the main config file */
- if (conf->processed_main_config)
+ if (conf->processed_main_config) {
+ condlog(1, "%s line %d, config_dir option only valid in /etc/multipath.conf",
+ file, line_nr);
return 0;
+ }
condlog(2, "%s line %d, \"config_dir\" is deprecated and will be disabled in a future release",
file, line_nr);
return set_path(strvec, &conf->config_dir, file, line_nr);
@@ -836,7 +847,9 @@ set_mode(vector strvec, void *ptr, int *flags, const char *file, int line_nr)
if (sscanf(buff, "%o", &mode) == 1 && mode <= 0777) {
*flags |= (1 << ATTR_MODE);
*mode_ptr = mode;
- }
+ } else
+ condlog(1, "%s line %d, invalid value for mode: \"%s\"",
+ file, line_nr, buff);
FREE(buff);
return 0;
@@ -861,7 +874,9 @@ set_uid(vector strvec, void *ptr, int *flags, const char *file, int line_nr)
else if (sscanf(buff, "%u", &uid) == 1){
*flags |= (1 << ATTR_UID);
*uid_ptr = uid;
- }
+ } else
+ condlog(1, "%s line %d, invalid value for uid: \"%s\"",
+ file, line_nr, buff);
FREE(buff);
return 0;
@@ -887,7 +902,9 @@ set_gid(vector strvec, void *ptr, int *flags, const char *file, int line_nr)
else if (sscanf(buff, "%u", &gid) == 1){
*flags |= (1 << ATTR_GID);
*gid_ptr = gid;
- }
+ } else
+ condlog(1, "%s line %d, invalid value for gid: \"%s\"",
+ file, line_nr, buff);
FREE(buff);
return 0;
}
@@ -989,7 +1006,8 @@ set_dev_loss(vector strvec, void *ptr, const char *file, int line_nr)
if (!strcmp(buff, "infinity"))
*uint_ptr = MAX_DEV_LOSS_TMO;
else if (sscanf(buff, "%u", uint_ptr) != 1)
- *uint_ptr = DEV_LOSS_TMO_UNSET;
+ condlog(1, "%s line %d, invalid value for dev_loss_tmo: \"%s\"",
+ file, line_nr, buff);
FREE(buff);
return 0;
@@ -1023,13 +1041,19 @@ static int
set_pgpolicy(vector strvec, void *ptr, const char *file, int line_nr)
{
char * buff;
+ int policy;
int *int_ptr = (int *)ptr;
buff = set_value(strvec);
if (!buff)
return 1;
- *int_ptr = get_pgpolicy_id(buff);
+ policy = get_pgpolicy_id(buff);
+ if (policy != IOPOLICY_UNDEF)
+ *int_ptr = policy;
+ else
+ condlog(1, "%s line %d, invalid value for path_grouping_policy: \"%s\"",
+ file, line_nr, buff);
FREE(buff);
return 0;
@@ -1142,10 +1166,11 @@ set_rr_weight(vector strvec, void *ptr, const char *file, int line_nr)
if (!strcmp(buff, "priorities"))
*int_ptr = RR_WEIGHT_PRIO;
-
- if (!strcmp(buff, "uniform"))
+ else if (!strcmp(buff, "uniform"))
*int_ptr = RR_WEIGHT_NONE;
-
+ else
+ condlog(1, "%s line %d, invalid value for rr_weight: \"%s\"",
+ file, line_nr, buff);
FREE(buff);
return 0;
@@ -1281,10 +1306,13 @@ def_log_checker_err_handler(struct config *conf, vector strvec,
if (!buff)
return 1;
- if (strlen(buff) == 4 && !strcmp(buff, "once"))
+ if (!strcmp(buff, "once"))
conf->log_checker_err = LOG_CHKR_ERR_ONCE;
- else if (strlen(buff) == 6 && !strcmp(buff, "always"))
+ else if (!strcmp(buff, "always"))
conf->log_checker_err = LOG_CHKR_ERR_ALWAYS;
+ else
+ condlog(1, "%s line %d, invalid value for log_checker_err: \"%s\"",
+ file, line_nr, buff);
free(buff);
return 0;
@@ -1545,7 +1573,8 @@ hw_vpd_vendor_handler(struct config *conf, vector strvec, const char *file,
goto out;
}
}
- hwe->vpd_vendor_id = 0;
+ condlog(1, "%s line %d, invalid value for vpd_vendor: \"%s\"",
+ file, line_nr, buff);
out:
FREE(buff);
return 0;

View File

@ -0,0 +1,218 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 11 Nov 2021 17:37:05 -0600
Subject: [PATCH] libmultipath: don't return error on invalid values
do_set_int and set_uint return 1 for invalid values. This can cause
multipath to fail completely, while reading the config. The config
handlers should only return a non-zero value if there is an internal
error, not if there is just an invalid value.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dict.c | 64 ++++++++++++++++++---------------------------
1 file changed, 25 insertions(+), 39 deletions(-)
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index c534d703..1b75be47 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -30,7 +30,7 @@
#include "dict.h"
#include "strbuf.h"
-static int
+static void
do_set_int(vector strvec, void *ptr, int min, int max, const char *file,
int line_nr, char *buff)
{
@@ -45,7 +45,7 @@ do_set_int(vector strvec, void *ptr, int min, int max, const char *file,
if (*buff == '\0' || *eptr != '\0') {
condlog(1, "%s line %d, invalid value for %s: \"%s\"",
file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
- return 1;
+ return;
}
if (res > max || res < min) {
res = (res > max) ? max : min;
@@ -54,7 +54,7 @@ do_set_int(vector strvec, void *ptr, int min, int max, const char *file,
(res == max)? "large" : "small", res);
}
*int_ptr = res;
- return 0;
+ return;
}
static int
@@ -62,16 +62,15 @@ set_int(vector strvec, void *ptr, int min, int max, const char *file,
int line_nr)
{
char *buff;
- int rc;
buff = set_value(strvec);
if (!buff)
return 1;
- rc = do_set_int(strvec, ptr, min, max, file, line_nr, buff);
+ do_set_int(strvec, ptr, min, max, file, line_nr, buff);
FREE(buff);
- return rc;
+ return 0;
}
static int
@@ -80,7 +79,6 @@ set_uint(vector strvec, void *ptr, const char *file, int line_nr)
unsigned int *uint_ptr = (unsigned int *)ptr;
char *buff, *eptr, *p;
unsigned long res;
- int rc;
buff = set_value(strvec);
if (!buff)
@@ -93,17 +91,14 @@ set_uint(vector strvec, void *ptr, const char *file, int line_nr)
if (eptr > buff)
while (isspace(*eptr))
eptr++;
- if (*buff == '\0' || *eptr != '\0' || !isdigit(*p) || res > UINT_MAX) {
+ if (*buff == '\0' || *eptr != '\0' || !isdigit(*p) || res > UINT_MAX)
condlog(1, "%s line %d, invalid value for %s: \"%s\"",
file, line_nr, (char*)VECTOR_SLOT(strvec, 0), buff);
- rc = 1;
- } else {
- rc = 0;
+ else
*uint_ptr = res;
- }
FREE(buff);
- return rc;
+ return 0;
}
static int
@@ -954,7 +949,6 @@ declare_mp_attr_snprint(gid, print_gid)
static int
set_undef_off_zero(vector strvec, void *ptr, const char *file, int line_nr)
{
- int rc = 0;
char * buff;
int *int_ptr = (int *)ptr;
@@ -964,11 +958,10 @@ set_undef_off_zero(vector strvec, void *ptr, const char *file, int line_nr)
if (strcmp(buff, "off") == 0)
*int_ptr = UOZ_OFF;
- else
- rc = do_set_int(strvec, int_ptr, 0, INT_MAX, file, line_nr,
- buff);
- if (rc == 0 && *int_ptr == 0)
+ else if (strcmp(buff, "0") == 0)
*int_ptr = UOZ_ZERO;
+ else
+ do_set_int(strvec, int_ptr, 1, INT_MAX, file, line_nr, buff);
FREE(buff);
return 0;
@@ -1114,28 +1107,24 @@ max_fds_handler(struct config *conf, vector strvec, const char *file,
int line_nr)
{
char * buff;
- int r = 0, max_fds;
+ int max_fds;
buff = set_value(strvec);
if (!buff)
return 1;
- r = get_sys_max_fds(&max_fds);
- if (r) {
- /* Assume safe limit */
- max_fds = 4096;
- }
- if (!strcmp(buff, "max")) {
+ if (get_sys_max_fds(&max_fds) != 0)
+ max_fds = 4096; /* Assume safe limit */
+ if (!strcmp(buff, "max"))
conf->max_fds = max_fds;
- r = 0;
- } else
- r = do_set_int(strvec, &conf->max_fds, 0, max_fds, file,
- line_nr, buff);
+ else
+ do_set_int(strvec, &conf->max_fds, 0, max_fds, file, line_nr,
+ buff);
FREE(buff);
- return r;
+ return 0;
}
static int
@@ -1201,7 +1190,6 @@ declare_mp_snprint(rr_weight, print_rr_weight)
static int
set_pgfailback(vector strvec, void *ptr, const char *file, int line_nr)
{
- int rc = 0;
int *int_ptr = (int *)ptr;
char * buff;
@@ -1216,11 +1204,11 @@ set_pgfailback(vector strvec, void *ptr, const char *file, int line_nr)
else if (strlen(buff) == 10 && !strcmp(buff, "followover"))
*int_ptr = -FAILBACK_FOLLOWOVER;
else
- rc = do_set_int(strvec, ptr, 0, INT_MAX, file, line_nr, buff);
+ do_set_int(strvec, ptr, 0, INT_MAX, file, line_nr, buff);
FREE(buff);
- return rc;
+ return 0;
}
int
@@ -1252,7 +1240,6 @@ declare_mp_snprint(pgfailback, print_pgfailback)
static int
no_path_retry_helper(vector strvec, void *ptr, const char *file, int line_nr)
{
- int rc = 0;
int *int_ptr = (int *)ptr;
char * buff;
@@ -1265,10 +1252,10 @@ no_path_retry_helper(vector strvec, void *ptr, const char *file, int line_nr)
else if (!strcmp(buff, "queue"))
*int_ptr = NO_PATH_RETRY_QUEUE;
else
- rc = do_set_int(strvec, ptr, 1, INT_MAX, file, line_nr, buff);
+ do_set_int(strvec, ptr, 1, INT_MAX, file, line_nr, buff);
FREE(buff);
- return rc;
+ return 0;
}
int
@@ -1413,7 +1400,6 @@ snprint_mp_reservation_key (struct config *conf, struct strbuf *buff,
static int
set_off_int_undef(vector strvec, void *ptr, const char *file, int line_nr)
{
- int rc =0;
int *int_ptr = (int *)ptr;
char * buff;
@@ -1424,10 +1410,10 @@ set_off_int_undef(vector strvec, void *ptr, const char *file, int line_nr)
if (!strcmp(buff, "no") || !strcmp(buff, "0"))
*int_ptr = NU_NO;
else
- rc = do_set_int(strvec, ptr, 1, INT_MAX, file, line_nr, buff);
+ do_set_int(strvec, ptr, 1, INT_MAX, file, line_nr, buff);
FREE(buff);
- return rc;
+ return 0;
}
int

View File

@ -0,0 +1,129 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Mon, 15 Nov 2021 10:54:35 -0600
Subject: [PATCH] multipathd: avoid unnecessary path read-only reloads
A mulitpath device can only be reloaded read/write when all paths are
read/write. Also, whenever a read-only device is rescanned, the scsi
subsystem will first unconditionally issue a uevent with DISK_RO=0
before checking the read-only status, and if it the device is still
read-only, issuing another uevent with DISK_RO=1. These uevents cause
pointless reloads when read-only paths are rescanned. To avoid this,
check to see if all paths are read/write before changing a multipath
device from read-only to read/write.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/libmultipath.version | 5 +++++
libmultipath/sysfs.c | 22 ++++++++++++++++++++++
libmultipath/sysfs.h | 1 +
multipathd/main.c | 31 ++++++++++++++++++++++++++++++-
4 files changed, 58 insertions(+), 1 deletion(-)
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index eb5b5b55..dd1b4122 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -287,3 +287,8 @@ global:
local:
*;
};
+
+LIBMULTIPATH_9.1.0 {
+global:
+ sysfs_get_ro;
+} LIBMULTIPATH_9.0.0;
diff --git a/libmultipath/sysfs.c b/libmultipath/sysfs.c
index 9ff145f2..24c12b6a 100644
--- a/libmultipath/sysfs.c
+++ b/libmultipath/sysfs.c
@@ -236,6 +236,28 @@ sysfs_get_size (struct path *pp, unsigned long long * size)
return 0;
}
+int
+sysfs_get_ro (struct path *pp)
+{
+ int ro;
+ char buff[3]; /* Either "0\n\0" or "1\n\0" */
+
+ if (!pp->udev)
+ return -1;
+
+ if (sysfs_attr_get_value(pp->udev, "ro", buff, sizeof(buff)) <= 0) {
+ condlog(3, "%s: Cannot read ro attribute in sysfs", pp->dev);
+ return -1;
+ }
+
+ if (sscanf(buff, "%d\n", &ro) != 1 || ro < 0 || ro > 1) {
+ condlog(3, "%s: Cannot parse ro attribute", pp->dev);
+ return -1;
+ }
+
+ return ro;
+}
+
int sysfs_check_holders(char * check_devt, char * new_devt)
{
unsigned int major, new_minor, table_minor;
diff --git a/libmultipath/sysfs.h b/libmultipath/sysfs.h
index 72b39ab2..c948c467 100644
--- a/libmultipath/sysfs.h
+++ b/libmultipath/sysfs.h
@@ -13,6 +13,7 @@ ssize_t sysfs_attr_get_value(struct udev_device *dev, const char *attr_name,
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_get_ro(struct path *pp);
int sysfs_check_holders(char * check_devt, char * new_devt);
bool sysfs_is_multipathed(struct path *pp, bool set_wwid);
#endif
diff --git a/multipathd/main.c b/multipathd/main.c
index 1defeaf1..6145e512 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1324,6 +1324,35 @@ fail:
return REMOVE_PATH_MAP_ERROR;
}
+static bool
+needs_ro_update(struct multipath *mpp, int ro)
+{
+ struct pathgroup * pgp;
+ struct path * pp;
+ unsigned int i, j;
+ struct dm_info *dmi = NULL;
+
+ if (!mpp || ro < 0)
+ return false;
+ dm_get_info(mpp->alias, &dmi);
+ if (!dmi) /* assume we do need to reload the device */
+ return true;
+ if (dmi->read_only == ro) {
+ free(dmi);
+ return false;
+ }
+ free(dmi);
+ if (ro == 1)
+ return true;
+ vector_foreach_slot (mpp->pg, pgp, i) {
+ vector_foreach_slot (pgp->paths, pp, j) {
+ if (sysfs_get_ro(pp) == 1)
+ return false;
+ }
+ }
+ return true;
+}
+
static int
uev_update_path (struct uevent *uev, struct vectors * vecs)
{
@@ -1388,7 +1417,7 @@ uev_update_path (struct uevent *uev, struct vectors * vecs)
}
ro = uevent_get_disk_ro(uev);
- if (mpp && ro >= 0) {
+ if (needs_ro_update(mpp, ro)) {
condlog(2, "%s: update path write_protect to '%d' (uevent)", uev->kernel, ro);
if (mpp->wait_for_udev)

View File

@ -0,0 +1,26 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Fri, 22 Oct 2021 12:58:11 +0200
Subject: [PATCH] multipath: fix exit status of multipath -T
We must set the return value in configure().
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/multipath/main.c b/multipath/main.c
index 748e7902..80fa68e5 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -606,6 +606,7 @@ configure (struct config *conf, enum mpath_cmds cmd,
dump_config(conf, hwes, curmp);
vector_free(hwes);
+ r = RTVL_OK;
goto out;
}

View File

@ -0,0 +1,34 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Mon, 13 Dec 2021 14:26:30 -0600
Subject: [PATCH] RH: mpathconf: fix setting property_blacklist
If there was no blacklist_exceptions section, setting property_blacklist
didn't work correctly. Fix it.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/mpathconf | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/multipath/mpathconf b/multipath/mpathconf
index c00d2555..0de6b121 100644
--- a/multipath/mpathconf
+++ b/multipath/mpathconf
@@ -496,7 +496,15 @@ if [ "$PROPERTY" = "n" ]; then
CHANGED_CONFIG=1
fi
elif [ "$PROPERTY" = "y" ]; then
- if [ -z "$HAVE_PROPERTY" ]; then
+ if [ -z "$HAVE_PROPERTY" -a -z "$HAVE_EXCEPTIONS" ]; then
+ cat >> $TMPFILE << _EOF_
+
+blacklist_exceptions {
+ property "(SCSI_IDENT_|ID_WWN)"
+}
+_EOF_
+ CHANGED_CONFIG=1
+ elif [ -z "$HAVE_PROPERTY" ]; then
sed -i '/^blacklist_exceptions[[:space:]]*{/ a\
property "(SCSI_IDENT_|ID_WWN)"
' $TMPFILE

View File

@ -0,0 +1,45 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 12 Jan 2022 12:26:12 -0600
Subject: [PATCH] libmultipath: fix disassemble status for
historical-service-time PS
The historical-service-time path selector prints out 2 path group status
arguments. This is the only path selector that uses the group status
arguments. All the others only have path status arguments.
disassemble_status() was expecting the number of group status arguments
to always be zero, causing it to fail at disassembling the status of
devices that use historical-service-time path selector. Now multipath
actually checks the number of group arguments, and skips them.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/dmparser.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/libmultipath/dmparser.c b/libmultipath/dmparser.c
index 4ba7f339..bc311421 100644
--- a/libmultipath/dmparser.c
+++ b/libmultipath/dmparser.c
@@ -437,9 +437,19 @@ int disassemble_status(const char *params, struct multipath *mpp)
FREE(word);
/*
- * PG Status (discarded, would be '0' anyway)
+ * Path Selector Group Arguments
*/
- p += get_word(p, NULL);
+ p += get_word(p, &word);
+
+ if (!word)
+ return 1;
+
+ num_pg_args = atoi(word);
+ free(word);
+
+ /* Ignore ps group arguments */
+ for (j = 0; j < num_pg_args; j++)
+ p += get_word(p, NULL);
p += get_word(p, &word);

View File

@ -0,0 +1,133 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Mon, 17 Jan 2022 14:45:38 -0600
Subject: [PATCH] libmultipath: make helper function to trigger path uevents
Pull the code that checks if a path needs to trigger a uevent, and
triggers, out of trigger_paths_udev_change() and into a new function,
trigger_path_udev_change(). This function will be used separately by
a future patch. No functional changes.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/configure.c | 79 +++++++++++++++++++++-------------------
libmultipath/configure.h | 1 +
2 files changed, 43 insertions(+), 37 deletions(-)
diff --git a/libmultipath/configure.c b/libmultipath/configure.c
index 7edb355b..043e4232 100644
--- a/libmultipath/configure.c
+++ b/libmultipath/configure.c
@@ -565,11 +565,8 @@ unref:
}
void
-trigger_paths_udev_change(struct multipath *mpp, bool is_mpath)
+trigger_path_udev_change(struct path *pp, bool is_mpath)
{
- struct pathgroup *pgp;
- struct path *pp;
- int i, j;
/*
* If a path changes from multipath to non-multipath, we must
* synthesize an artificial "add" event, otherwise the LVM2 rules
@@ -577,6 +574,45 @@ trigger_paths_udev_change(struct multipath *mpp, bool is_mpath)
* irritate ourselves with an "add", so use "change".
*/
const char *action = is_mpath ? "change" : "add";
+ const char *env;
+
+ if (!pp->udev)
+ return;
+ /*
+ * Paths that are already classified as multipath
+ * members don't need another uevent.
+ */
+ env = udev_device_get_property_value(
+ pp->udev, "DM_MULTIPATH_DEVICE_PATH");
+
+ if (is_mpath && env != NULL && !strcmp(env, "1")) {
+ /*
+ * If FIND_MULTIPATHS_WAIT_UNTIL is not "0",
+ * path is in "maybe" state and timer is running
+ * Send uevent now (see multipath.rules).
+ */
+ env = udev_device_get_property_value(
+ pp->udev, "FIND_MULTIPATHS_WAIT_UNTIL");
+ if (env == NULL || !strcmp(env, "0"))
+ return;
+ } else if (!is_mpath &&
+ (env == NULL || !strcmp(env, "0")))
+ return;
+
+ condlog(3, "triggering %s uevent for %s (is %smultipath member)",
+ action, pp->dev, is_mpath ? "" : "no ");
+ sysfs_attr_set_value(pp->udev, "uevent",
+ action, strlen(action));
+ trigger_partitions_udev_change(pp->udev, action,
+ strlen(action));
+}
+
+void
+trigger_paths_udev_change(struct multipath *mpp, bool is_mpath)
+{
+ struct pathgroup *pgp;
+ struct path *pp;
+ int i, j;
if (!mpp || !mpp->pg)
return;
@@ -584,39 +620,8 @@ trigger_paths_udev_change(struct multipath *mpp, bool is_mpath)
vector_foreach_slot (mpp->pg, pgp, i) {
if (!pgp->paths)
continue;
- vector_foreach_slot(pgp->paths, pp, j) {
- const char *env;
-
- if (!pp->udev)
- continue;
- /*
- * Paths that are already classified as multipath
- * members don't need another uevent.
- */
- env = udev_device_get_property_value(
- pp->udev, "DM_MULTIPATH_DEVICE_PATH");
-
- if (is_mpath && env != NULL && !strcmp(env, "1")) {
- /*
- * If FIND_MULTIPATHS_WAIT_UNTIL is not "0",
- * path is in "maybe" state and timer is running
- * Send uevent now (see multipath.rules).
- */
- env = udev_device_get_property_value(
- pp->udev, "FIND_MULTIPATHS_WAIT_UNTIL");
- if (env == NULL || !strcmp(env, "0"))
- continue;
- } else if (!is_mpath &&
- (env == NULL || !strcmp(env, "0")))
- continue;
-
- condlog(3, "triggering %s uevent for %s (is %smultipath member)",
- action, pp->dev, is_mpath ? "" : "no ");
- sysfs_attr_set_value(pp->udev, "uevent",
- action, strlen(action));
- trigger_partitions_udev_change(pp->udev, action,
- strlen(action));
- }
+ vector_foreach_slot(pgp->paths, pp, j)
+ trigger_path_udev_change(pp, is_mpath);
}
mpp->needs_paths_uevent = 0;
diff --git a/libmultipath/configure.h b/libmultipath/configure.h
index efe18b7d..2bf73e65 100644
--- a/libmultipath/configure.h
+++ b/libmultipath/configure.h
@@ -56,6 +56,7 @@ int coalesce_paths (struct vectors *vecs, vector curmp, char * refwwid, int forc
int get_refwwid (enum mpath_cmds cmd, const char *dev, enum devtypes dev_type,
vector pathvec, char **wwid);
struct udev_device *get_udev_device(const char *dev, enum devtypes dev_type);
+void trigger_path_udev_change(struct path *pp, bool is_mpath);
void trigger_paths_udev_change(struct multipath *mpp, bool is_mpath);
void trigger_partitions_udev_change(struct udev_device *dev, const char *action,
int len);

View File

@ -0,0 +1,54 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Mon, 17 Jan 2022 16:46:18 -0600
Subject: [PATCH] multipathd: trigger udev change on path addition
When a multipath device is created for the first time, there is a window
where some path devices way be added to the multipath device, but never
claimed in udev. This can allow other device owners, like lvm, to think
they can use the device.
When a multipath device is first created, all the existing paths that
are not claimed by multipath have a uevent triggered so that they can
get claimed. After that, multipath assumes all future paths added to the
multipath device will have been claimed by multipath, since the device's
WWID is now in the wwids file. This doesn't work for any paths that
have already been processed by the multipath.rules udev rules before
the multipath device was created.
To close this window, when path device is added, and a matching
multipath device already exists, multipathd now checks if the device is
claimed by multipath, and if not, triggers a uevent to claim it.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
libmultipath/libmultipath.version | 5 +++++
multipathd/main.c | 2 ++
2 files changed, 7 insertions(+)
diff --git a/libmultipath/libmultipath.version b/libmultipath/libmultipath.version
index dd1b4122..0d89e9e1 100644
--- a/libmultipath/libmultipath.version
+++ b/libmultipath/libmultipath.version
@@ -292,3 +292,8 @@ LIBMULTIPATH_9.1.0 {
global:
sysfs_get_ro;
} LIBMULTIPATH_9.0.0;
+
+LIBMULTIPATH_9.1.1 {
+global:
+ trigger_path_udev_change;
+} LIBMULTIPATH_9.1.0;
diff --git a/multipathd/main.c b/multipathd/main.c
index 6145e512..5def5301 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1062,6 +1062,8 @@ ev_add_path (struct path * pp, struct vectors * vecs, int need_do_map)
free_path(pp);
return 1;
}
+ if (mpp)
+ trigger_path_udev_change(pp, true);
if (mpp && mpp->wait_for_udev &&
(pathcount(mpp, PATH_UP) > 0 ||
(pathcount(mpp, PATH_GHOST) > 0 &&

View File

@ -0,0 +1,149 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 2 Feb 2022 17:00:21 -0600
Subject: [PATCH] RH: add support to mpathconf for setting arbitrary default
options
mpathconf now supports --option <name>:[<value>] for setting, changing,
or removing options from the defaults section of multipath.conf.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/mpathconf | 58 ++++++++++++++++++++++++++++++++++++++++---
multipath/mpathconf.8 | 7 ++++++
2 files changed, 62 insertions(+), 3 deletions(-)
diff --git a/multipath/mpathconf b/multipath/mpathconf
index 0de6b121..6e33fb99 100644
--- a/multipath/mpathconf
+++ b/multipath/mpathconf
@@ -17,7 +17,7 @@
# This program was largely ripped off from lvmconf
#
-unset ENABLE FIND FRIENDLY PROPERTY FOREIGN MODULE MULTIPATHD HAVE_DISABLE HAVE_WWID_DISABLE HAVE_FIND HAVE_BLACKLIST HAVE_EXCEPTIONS HAVE_DEFAULTS HAVE_FRIENDLY HAVE_PROPERTY HAVE_FOREIGN HAVE_MULTIPATHD HAVE_MODULE HAVE_OUTFILE SHOW_STATUS CHANGED_CONFIG WWID_LIST
+unset ENABLE FIND FRIENDLY PROPERTY FOREIGN MODULE MULTIPATHD HAVE_DISABLE HAVE_WWID_DISABLE HAVE_FIND HAVE_BLACKLIST HAVE_EXCEPTIONS HAVE_DEFAULTS HAVE_FRIENDLY HAVE_PROPERTY HAVE_FOREIGN HAVE_MULTIPATHD HAVE_MODULE HAVE_OUTFILE SHOW_STATUS CHANGED_CONFIG WWID_LIST HAVE_OPTION OPTION_NAME OPTION_VALUE
DEFAULT_CONFIG="# device-mapper-multipath configuration file
@@ -52,6 +52,7 @@ function usage
echo "Set find_multipaths (Default y): --find_multipaths <yes|no|strict|greedy|smart>"
echo "Set default property blacklist (Default n): --property_blacklist <y|n>"
echo "Set enable_foreign to show foreign devices (Default n): --enable_foreign <y|n>"
+ echo "Add/Change/Remove option in defaults section: --option <option_name>:<value>"
echo "Load the dm-multipath modules on enable (Default y): --with_module <y|n>"
echo "start/stop/reload multipathd (Default n): --with_multipathd <y|n>"
echo "select output file (Default /etc/multipath.conf): --outfile <FILE>"
@@ -162,6 +163,20 @@ function parse_args
exit 1
fi
;;
+ --option)
+ if [ -n "$2" ]; then
+ OPTION_NAME=$(echo $2 | cut -s -f1 -d:)
+ OPTION_VALUE=$(echo $2 | cut -s -f2 -d:)
+ if [ -z "$OPTION_NAME" ]; then
+ usage
+ exit 1
+ fi
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
--enable_foreign)
if [ -n "$2" ]; then
FOREIGN=$2
@@ -208,12 +223,15 @@ function parse_args
function validate_args
{
- if [ "$ENABLE" = "0" ] && [ -n "$FRIENDLY" -o -n "$FIND" -o -n "$PROPERTY" -o -n "$MODULE" ]; then
+ if [ "$ENABLE" = "0" ] && [ -n "$FRIENDLY" -o -n "$FIND" -o -n "$PROPERTY" -o -n "$MODULE" -o -n "$FOREIGN" -o -n "$OPTION_NAME" ]; then
echo "ignoring extra parameters on disable"
FRIENDLY=""
FIND=""
PROPERTY=""
MODULE=""
+ FOREIGN=""
+ OPTION_NAME=""
+ OPTION_VALUE=""
fi
if [ -n "$FRIENDLY" ] && [ "$FRIENDLY" != "y" -a "$FRIENDLY" != "n" ]; then
echo "--user_friendly_names must be either 'y' or 'n'"
@@ -235,7 +253,19 @@ function validate_args
echo "--enable_foreign must be either 'y' or 'n'"
exit 1
fi
- if [ -z "$ENABLE" -a -z "$FIND" -a -z "$FRIENDLY" -a -z "$PROPERTY" -a -z "$FOREIGN" ]; then
+ if [ -n "$OPTION_NAME" ]; then
+ if [[ $OPTION_NAME =~ [[:space:]]|#|\"|!|\{|\} ]]; then
+ echo "--option name \"$OPTION_NAME\" is invalid"
+ exit 1
+ elif [[ $OPTION_VALUE =~ \"|#|!|\{|\} ]]; then
+ echo "--option value \"$OPTION_VALUE\" is invalid"
+ exit 1
+ fi
+ if [[ $OPTION_VALUE =~ [[:space:]] ]]; then
+ OPTION_VALUE=\"$OPTION_VALUE\"
+ fi
+ fi
+ if [ -z "$ENABLE" -a -z "$FIND" -a -z "$FRIENDLY" -a -z "$PROPERTY" -a -z "$FOREIGN" -a -z "$OPTION_NAME" ]; then
SHOW_STATUS=1
fi
if [ -n "$MODULE" ] && [ "$MODULE" != "y" -a "$MODULE" != "n" ]; then
@@ -348,6 +378,13 @@ if [ "$HAVE_DEFAULTS" = "1" ]; then
elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*enable_foreign" ; then
HAVE_FOREIGN=3
fi
+ if [ -n "$OPTION_NAME" ]; then
+ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q '^[[:space:]]*'"$OPTION_NAME"'[[:space:]][[:space:]]*'"$OPTION_VALUE" ; then
+ HAVE_OPTION=1
+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q '^[[:space:]]*'"$OPTION_NAME"'\([[:space:]].*\)\?$' ; then
+ HAVE_OPTION=0
+ fi
+ fi
fi
if [ "$HAVE_EXCEPTIONS" = "1" ]; then
@@ -532,6 +569,21 @@ elif [ "$FOREIGN" = "y" ]; then
fi
fi
+if [ -n "$OPTION_NAME" -a -n "$OPTION_VALUE" ]; then
+ if [ -z "$HAVE_OPTION" ]; then
+ sed -i '/^defaults[[:space:]]*{/ a\
+ '"$OPTION_NAME"' '"$OPTION_VALUE"'
+' $TMPFILE
+ CHANGED_CONFIG=1
+ elif [ "$HAVE_OPTION" = 0 ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*'"$OPTION_NAME"'\([[:space:]].*\)\?$/ '"$OPTION_NAME"' '"$OPTION_VALUE"'/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+elif [ -n "$OPTION_NAME" -a -n "$HAVE_OPTION" ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/{/^[[:space:]]*'"$OPTION_NAME"'\([[:space:]].*\)\?$/d}' $TMPFILE
+ CHANGED_CONFIG=1
+fi
+
if [ -f "$OUTPUTFILE" ]; then
cp $OUTPUTFILE $OUTPUTFILE.old
if [ $? != 0 ]; then
diff --git a/multipath/mpathconf.8 b/multipath/mpathconf.8
index a14d831e..496383b7 100644
--- a/multipath/mpathconf.8
+++ b/multipath/mpathconf.8
@@ -101,6 +101,13 @@ to the
defaults section. if set to \fBn\fP, this removes the line, if present. This
command can be used along with any other command.
.TP
+.B --option \fB<option_name>:[<value>]\fP
+Sets the defaults section option \fB<option_name>\fP to \fB<value>\fP. If the
+option was not previously set in the defaults section, it is added. If it was
+set, its value is changed to \fB<value>\fP. If \fB<value>\fP is left blank,
+then the option is removed from the defaults section, if was set there. This
+command can be used along with any other command.
+.TP
.B --outfile \fB<filename>\fP
Write the resulting multipath configuration to \fB<filename>\fP instead of
\fB/etc/multipath.conf\fP.

View File

@ -0,0 +1,154 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 3 Feb 2022 13:26:18 -0600
Subject: [PATCH] RH: add support to mpathconf for setting recheck_wwid
mpathconf now supports --recheck_wwid <y|n> for setthing the
recheck_wwid option
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/mpathconf | 48 ++++++++++++++++++++++++++++++++++++++++---
multipath/mpathconf.8 | 9 ++++++++
2 files changed, 54 insertions(+), 3 deletions(-)
diff --git a/multipath/mpathconf b/multipath/mpathconf
index 6e33fb99..319664b1 100644
--- a/multipath/mpathconf
+++ b/multipath/mpathconf
@@ -17,7 +17,7 @@
# This program was largely ripped off from lvmconf
#
-unset ENABLE FIND FRIENDLY PROPERTY FOREIGN MODULE MULTIPATHD HAVE_DISABLE HAVE_WWID_DISABLE HAVE_FIND HAVE_BLACKLIST HAVE_EXCEPTIONS HAVE_DEFAULTS HAVE_FRIENDLY HAVE_PROPERTY HAVE_FOREIGN HAVE_MULTIPATHD HAVE_MODULE HAVE_OUTFILE SHOW_STATUS CHANGED_CONFIG WWID_LIST HAVE_OPTION OPTION_NAME OPTION_VALUE
+unset ENABLE FIND FRIENDLY PROPERTY FOREIGN MODULE MULTIPATHD HAVE_DISABLE HAVE_WWID_DISABLE HAVE_FIND HAVE_BLACKLIST HAVE_EXCEPTIONS HAVE_DEFAULTS HAVE_FRIENDLY HAVE_PROPERTY HAVE_FOREIGN HAVE_MULTIPATHD HAVE_MODULE HAVE_OUTFILE SHOW_STATUS CHANGED_CONFIG WWID_LIST HAVE_OPTION OPTION_NAME OPTION_VALUE HAVE_RECHECK_WWID RECHECK_WWID
DEFAULT_CONFIG="# device-mapper-multipath configuration file
@@ -52,6 +52,7 @@ function usage
echo "Set find_multipaths (Default y): --find_multipaths <yes|no|strict|greedy|smart>"
echo "Set default property blacklist (Default n): --property_blacklist <y|n>"
echo "Set enable_foreign to show foreign devices (Default n): --enable_foreign <y|n>"
+ echo "Set recheck_wwid (Defaut n): --recheck_wwid <y|n>"
echo "Add/Change/Remove option in defaults section: --option <option_name>:<value>"
echo "Load the dm-multipath modules on enable (Default y): --with_module <y|n>"
echo "start/stop/reload multipathd (Default n): --with_multipathd <y|n>"
@@ -145,6 +146,15 @@ function parse_args
exit 1
fi
;;
+ --recheck_wwid)
+ if [ -n "$2" ]; then
+ RECHECK_WWID=$2
+ shift 2
+ else
+ usage
+ exit 1
+ fi
+ ;;
--find_multipaths)
if [ -n "$2" ]; then
FIND=$2
@@ -223,7 +233,7 @@ function parse_args
function validate_args
{
- if [ "$ENABLE" = "0" ] && [ -n "$FRIENDLY" -o -n "$FIND" -o -n "$PROPERTY" -o -n "$MODULE" -o -n "$FOREIGN" -o -n "$OPTION_NAME" ]; then
+ if [ "$ENABLE" = "0" ] && [ -n "$FRIENDLY" -o -n "$FIND" -o -n "$PROPERTY" -o -n "$MODULE" -o -n "$FOREIGN" -o -n "$OPTION_NAME" -o -n "$RECHECK_WWID" ]; then
echo "ignoring extra parameters on disable"
FRIENDLY=""
FIND=""
@@ -232,11 +242,16 @@ function validate_args
FOREIGN=""
OPTION_NAME=""
OPTION_VALUE=""
+ RECHECK_WWID=""
fi
if [ -n "$FRIENDLY" ] && [ "$FRIENDLY" != "y" -a "$FRIENDLY" != "n" ]; then
echo "--user_friendly_names must be either 'y' or 'n'"
exit 1
fi
+ if [ -n "$RECHECK_WWID" ] && [ "$RECHECK_WWID" != "y" -a "$RECHECK_WWID" != "n" ]; then
+ echo "--recheck_wwid must be either 'y' or 'n'"
+ exit 1
+ fi
if [ "$FIND" = "y" ]; then
FIND="yes"
elif [ "$FIND" = "n" ]; then
@@ -265,7 +280,7 @@ function validate_args
OPTION_VALUE=\"$OPTION_VALUE\"
fi
fi
- if [ -z "$ENABLE" -a -z "$FIND" -a -z "$FRIENDLY" -a -z "$PROPERTY" -a -z "$FOREIGN" -a -z "$OPTION_NAME" ]; then
+ if [ -z "$ENABLE" -a -z "$FIND" -a -z "$FRIENDLY" -a -z "$PROPERTY" -a -z "$FOREIGN" -a -z "$OPTION_NAME" -a -z "$RECHECK_WWID" ]; then
SHOW_STATUS=1
fi
if [ -n "$MODULE" ] && [ "$MODULE" != "y" -a "$MODULE" != "n" ]; then
@@ -367,6 +382,11 @@ if [ "$HAVE_DEFAULTS" = "1" ]; then
elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*user_friendly_names[[:space:]][[:space:]]*\(no\|0\)" ; then
HAVE_FRIENDLY=0
fi
+ if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*recheck_wwid[[:space:]][[:space:]]*\(yes\|1\)" ; then
+ HAVE_RECHECK_WWID=1
+ elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*recheck_wwid[[:space:]][[:space:]]*\(no\|0\)" ; then
+ HAVE_RECHECK_WWID=0
+ fi
if sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*#[[:space:]]*enable_foreign" ; then
HAVE_FOREIGN=0
elif sed -n '/^defaults[[:space:]]*{/,/^}/ p' $TMPFILE | grep -q "^[[:space:]]*enable_foreign[[:space:]][[:space:]]*\"\.\*\"" ; then
@@ -411,6 +431,11 @@ if [ -n "$SHOW_STATUS" ]; then
else
echo "user_friendly_names is enabled"
fi
+ if [ -z "$HAVE_RECHECK_WWID" -o "$HAVE_RECHECK_WWID" = 0 ]; then
+ echo "recheck_wwid is disabled"
+ else
+ echo "recheck_wwid is enabled"
+ fi
if [ -z "$HAVE_PROPERTY" -o "$HAVE_PROPERTY" = 0 ]; then
echo "default property blacklist is disabled"
else
@@ -527,6 +552,23 @@ elif [ "$FRIENDLY" = "y" ]; then
fi
fi
+if [ "$RECHECK_WWID" = "n" ]; then
+ if [ "$HAVE_RECHECK_WWID" = 1 ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*recheck_wwid[[:space:]][[:space:]]*\(yes\|1\)/ recheck_wwid no/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+elif [ "$RECHECK_WWID" = "y" ]; then
+ if [ -z "$HAVE_RECHECK_WWID" ]; then
+ sed -i '/^defaults[[:space:]]*{/ a\
+ recheck_wwid yes
+' $TMPFILE
+ CHANGED_CONFIG=1
+ elif [ "$HAVE_RECHECK_WWID" = 0 ]; then
+ sed -i '/^defaults[[:space:]]*{/,/^}/ s/^[[:space:]]*recheck_wwid[[:space:]][[:space:]]*\(no\|0\)/ recheck_wwid yes/' $TMPFILE
+ CHANGED_CONFIG=1
+ fi
+fi
+
if [ "$PROPERTY" = "n" ]; then
if [ "$HAVE_PROPERTY" = 1 ]; then
sed -i '/^blacklist_exceptions[[:space:]]*{/,/^}/ s/^[[:space:]]*property[[:space:]][[:space:]]*\"(SCSI_IDENT_|ID_WWN)\"/# property \"(SCSI_IDENT_|ID_WWN)\"/' $TMPFILE
diff --git a/multipath/mpathconf.8 b/multipath/mpathconf.8
index 496383b7..9c2fb835 100644
--- a/multipath/mpathconf.8
+++ b/multipath/mpathconf.8
@@ -77,6 +77,15 @@ to the
defaults section. If set to \fBn\fP, this removes the line, if present. This
command can be used along with any other command.
.TP
+.B --recheck_wwid \fP { \fBy\fP | \fBn\fP }
+If set to \fBy\fP, this adds the line
+.B recheck_wwid yes
+to the
+.B /etc/multipath.conf
+defaults section, or sets an existing line to \fByes\fP. If set to \fBn\fP, this
+sets an existing \fBrecheck_wwid\fP line to \fBno\fP. This command can be used
+along with any other command.
+.TP
.B --find_multipaths\fP { \fByes\fP | \fBno\fP | \fBstrict\fP | \fBgreedy\fP | \fBsmart\fP }
If set to \fB<value>\fP, this adds the line
.B find_multipaths <value>

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View File

@ -0,0 +1,73 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Fri, 11 Feb 2022 17:23:39 -0600
Subject: [PATCH] multipathd: disallow changing to/from fpin marginal paths on
reconfig
Setting marginal_pathgroups to fpin causes two new threads to be created
when multipathd starts. Turning it on after multipathd starts up won't
cause the theads to start, and turing it off won't keep the threads from
working. So disallow changing marginal_pathgroups to/from "fpin" on
reconfigure.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/multipath.conf.5 | 13 ++++++++-----
multipathd/main.c | 9 +++++++++
2 files changed, 17 insertions(+), 5 deletions(-)
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 5ed2cd3c..58ad5c9c 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -1102,15 +1102,18 @@ have been tried first. This prevents the possibility of IO errors occuring
while marginal paths are still usable. After the path has been monitored
for the configured time, and is declared healthy, it will be returned to its
normal pathgroup.
-However if this option is set to \fIfpin\fR multipathd will receive fpin
+If this option is set to \fIfpin\fR, multipathd will receive fpin
notifications, set path states to "marginal" accordingly, and regroup paths
-as described for "marginal_pathgroups yes". This option can't be used in combination
-with other options for "Shaky path detection" (see below).If it is set to fpin,
-marginal_path_xyz and san_path_err_xyz parameters are implicitly set to 0.
+as described for \fIon\fR. This option can't be used in combination
+with other options for "Shaky path detection" (see below). \fBNote:\fR If this
+is set to \fIfpin\fR, the \fImarginal_path_*\fR and \fIsan_path_err_*\fR
+options are implicitly set to \fIno\fP. Also, this option cannot be switched
+either to or from \fIfpin\fR on a multipathd reconfigure. multipathd must be
+restarted for the change to take effect.
See "Shaky paths detection" below for more information.
.RS
.TP
-The default is: \fBno\fR
+The default is: \fBoff\fR
.RE
.
.
diff --git a/multipathd/main.c b/multipathd/main.c
index 53be9b95..45b9572f 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -2792,6 +2792,7 @@ int
reconfigure (struct vectors * vecs)
{
struct config * old, *conf;
+ int old_marginal_pathgroups;
conf = load_config(DEFAULT_CONFIGFILE);
if (!conf)
@@ -2819,6 +2820,14 @@ reconfigure (struct vectors * vecs)
uxsock_timeout = conf->uxsock_timeout;
old = rcu_dereference(multipath_conf);
+ old_marginal_pathgroups = old->marginal_pathgroups;
+ if ((old_marginal_pathgroups == MARGINAL_PATHGROUP_FPIN) !=
+ (conf->marginal_pathgroups == MARGINAL_PATHGROUP_FPIN)) {
+ condlog(1, "multipathd must be restarted to turn %s fpin marginal paths",
+ (old_marginal_pathgroups == MARGINAL_PATHGROUP_FPIN)?
+ "off" : "on");
+ conf->marginal_pathgroups = old_marginal_pathgroups;
+ }
conf->sequence_nr = old->sequence_nr + 1;
rcu_assign_pointer(multipath_conf, conf);
call_rcu(&old->rcu, rcu_free_config);

View File

@ -0,0 +1,33 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 16 Feb 2022 00:12:29 -0600
Subject: [PATCH] libmultipath: fix printing native nvme multipath topology.
Since commit 2f05df4 ("libmultipath: use strbuf in print.c"), when
multipath prints the topology of native nvme devices, instead of
printing the multipath device information, it prints "w [G]:d s". This
is because nvme_style() switched from calling snprintf(), which supports
format specifiers, to append_strbuf_str(), which doesn't, while still
keeping the same string, "%%w [%%G]:%%d %%s". Remove the extra percent
signs, since they don't need to be escaped in append_strbuf_str().
Fixes: 2f05df4 ("libmultipath: use strbuf in print.c")
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
libmultipath/foreign/nvme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/foreign/nvme.c b/libmultipath/foreign/nvme.c
index d40c0869..23355ca5 100644
--- a/libmultipath/foreign/nvme.c
+++ b/libmultipath/foreign/nvme.c
@@ -335,7 +335,7 @@ static int snprint_nvme_pg(const struct gen_pathgroup *gmp,
static int nvme_style(__attribute__((unused)) const struct gen_multipath* gm,
struct strbuf *buf, __attribute__((unused)) int verbosity)
{
- return append_strbuf_str(buf, "%%w [%%G]:%%d %%s");
+ return append_strbuf_str(buf, "%w [%G]:%d %s");
}
static const struct gen_multipath_ops nvme_map_ops = {

93
SOURCES/multipath.conf Normal file
View File

@ -0,0 +1,93 @@
# This is a basic configuration file with some examples, for device mapper
# multipath.
#
# For a complete list of the default configuration values, run either
# multipath -t
# or
# multipathd show config
#
# For a list of configuration options with descriptions, see the multipath.conf
# man page
## By default, devices with vendor = "IBM" and product = "S/390.*" are
## blacklisted. To enable mulitpathing on these devies, uncomment the
## following lines.
#blacklist_exceptions {
# device {
# vendor "IBM"
# product "S/390.*"
# }
#}
## Use user friendly names, instead of using WWIDs as names.
defaults {
user_friendly_names yes
find_multipaths yes
}
##
## Here is an example of how to configure some standard options.
##
#
#defaults {
# udev_dir /dev
# polling_interval 10
# selector "round-robin 0"
# path_grouping_policy multibus
# prio alua
# path_checker readsector0
# rr_min_io 100
# max_fds 8192
# rr_weight priorities
# failback immediate
# no_path_retry fail
# user_friendly_names yes
#}
##
## The wwid line in the following blacklist section is shown as an example
## of how to blacklist devices by wwid. The 2 devnode lines are the
## compiled in default blacklist. If you want to blacklist entire types
## of devices, such as all scsi devices, you should use a devnode line.
## However, if you want to blacklist specific devices, you should use
## a wwid line. Since there is no guarantee that a specific device will
## not change names on reboot (from /dev/sda to /dev/sdb for example)
## devnode lines are not recommended for blacklisting specific devices.
##
#blacklist {
# wwid 26353900f02796769
# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
# devnode "^hd[a-z]"
#}
#multipaths {
# multipath {
# wwid 3600508b4000156d700012000000b0000
# alias yellow
# path_grouping_policy multibus
# path_checker readsector0
# path_selector "round-robin 0"
# failback manual
# rr_weight priorities
# no_path_retry 5
# }
# multipath {
# wwid 1DEC_____321816758474
# alias red
# }
#}
#devices {
# device {
# vendor "COMPAQ "
# product "HSV110 (C)COMPAQ"
# path_grouping_policy multibus
# path_checker readsector0
# path_selector "round-robin 0"
# hardware_handler "0"
# failback 15
# rr_weight priorities
# no_path_retry queue
# }
# device {
# vendor "COMPAQ "
# product "MSA1000 "
# path_grouping_policy multibus
# }
#}

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