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Add all patches upstream since 1.1.11 (fixes RHBZ#1336758).

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- Reenable tests on x86.
This commit is contained in:
Richard W.M. Jones 2016-05-19 12:18:38 +01:00
parent 06bdcafa60
commit 13cfa83add
11 changed files with 731 additions and 19 deletions
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4
0001-Add-mandir-to-dump-config-output.patch
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@ -1,7 +1,7 @@
From 5294b7d8cc011f8b5e068aad744f612df7414a82 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Sat, 31 Oct 2015 13:24:52 +0000
Subject: [PATCH 1/5] Add mandir to --dump-config output.
Subject: [PATCH 01/10] Add mandir to --dump-config output.
This is useful for external plugins that want to install
a man page.
@ -35,5 +35,5 @@ index cd676c0..1248a8e 100644
printf ("%s=%s\n", "plugindir", plugindir);
printf ("%s=%s\n", "sbindir", sbindir);
--
2.5.0
2.7.4

4
0002-Update-TODO.patch
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@ -1,7 +1,7 @@
From 4b562134c3dad1a84aa92c1658e72046569e1570 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 11 Jan 2016 15:34:57 +0000
Subject: [PATCH 2/5] Update TODO.
Subject: [PATCH 02/10] Update TODO.
---
TODO | 5 +++++
@ -31,5 +31,5 @@ index bcf2276..a05aa5b 100644
NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS and
NBDKIT_THREAD_MODEL_PARALLEL are the same, because we handle
--
2.5.0
2.7.4

4
0003-Add-support-for-newstyle-NBD-protocol-RHBZ-1297100.patch
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@ -1,7 +1,7 @@
From f93807114634d58ca2ef0d64f7637ebd87e48a50 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 11 Jan 2016 17:08:51 +0000
Subject: [PATCH 3/5] Add support for newstyle NBD protocol (RHBZ#1297100).
Subject: [PATCH 03/10] Add support for newstyle NBD protocol (RHBZ#1297100).
---
.gitignore | 1 +
@ -756,5 +756,5 @@ index 7abf5af..c369150 100644
/* Declare program_name. */
#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1
--
2.5.0
2.7.4

4
0004-xz-Fix-various-printf-warnings-on-32-bit.patch
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@ -1,7 +1,7 @@
From 0759d15aa3649d088eeae91fcd174d0b37e1ccde Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 11 Jan 2016 19:02:53 +0000
Subject: [PATCH 4/5] xz: Fix various printf warnings on 32 bit.
Subject: [PATCH 04/10] xz: Fix various printf warnings on 32 bit.
xzfile.c: In function 'xzfile_read_block':
xzfile.c:456:19: warning: format '%zu' expects argument of type 'size_t', but argument 2 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]
@ -45,5 +45,5 @@ index fcc2937..3633099 100644
*size_rtn);
goto err1;
--
2.5.0
2.7.4

4
0005-ocaml-Avoid-race-when-building-NBDKit.cmi.patch
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@ -1,7 +1,7 @@
From b6db2f65596470492f0ad76d1ed63ddb98b17167 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 11 Jan 2016 19:46:37 +0000
Subject: [PATCH 5/5] ocaml: Avoid race when building NBDKit.cmi.
Subject: [PATCH 05/10] ocaml: Avoid race when building NBDKit.cmi.
If both the NBDKit.cmi and NBDKit.cmx builds run in parallel, both
will try to build NBDKit.cmi, resulting in a corrupt NBDKit.cmi file.
@ -24,5 +24,5 @@ index d4776b3..f63ba33 100644
NBDKit.o: NBDKit.cmx
--
2.5.0
2.7.4

154
0006-Test-the-o-oldstyle-command-line-option.patch Normal file
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@ -0,0 +1,154 @@
From 1c359d1140fee575cf478e2b4bf0c5ca0af9d05e Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 11 Jan 2016 20:34:28 +0000
Subject: [PATCH 06/10] Test the -o (oldstyle) command line option.
---
.gitignore | 1 +
tests/Makefile.am | 8 ++++
tests/test-oldstyle.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 111 insertions(+)
create mode 100644 tests/test-oldstyle.c
diff --git a/.gitignore b/.gitignore
index 9ea072f..bc151ca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,6 +46,7 @@ Makefile.in
/tests/test-newstyle
/tests/test-ocaml
/tests/test-ocaml-plugin.so
+/tests/test-oldstyle
/tests/test-perl
/tests/test-python
/tests/test-streaming
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 8d27032..1e6114c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -111,6 +111,14 @@ test_newstyle_SOURCES = test-newstyle.c test.h
test_newstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
test_newstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+# oldstyle protocol test.
+check_PROGRAMS += test-oldstyle
+TESTS += test-oldstyle
+
+test_oldstyle_SOURCES = test-oldstyle.c test.h
+test_oldstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_oldstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
# gzip plugin test.
if HAVE_ZLIB
if HAVE_GUESTFISH
diff --git a/tests/test-oldstyle.c b/tests/test-oldstyle.c
new file mode 100644
index 0000000..d809a0c
--- /dev/null
+++ b/tests/test-oldstyle.c
@@ -0,0 +1,102 @@
+/* nbdkit
+ * Copyright (C) 2013-2016 Red Hat Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ size_t i, size;
+
+ if (test_start_nbdkit ("-o", NBDKIT_PLUGIN ("file"), "file=file-data",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Using exportname = "" causes qemu to use the oldstyle protocol. */
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Check the data in the file is \x01-\x08 repeated 512 times. */
+ data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size);
+ if (!data)
+ exit (EXIT_FAILURE);
+ if (size != 8 * 512) {
+ fprintf (stderr, "%s FAILED: unexpected size (actual: %zu, expected: 512)\n",
+ program_name, size);
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; i < 512 * 8; i += 8) {
+ if (data[i] != 1 || data[i+1] != 2 ||
+ data[i+2] != 3 || data[i+3] != 4 ||
+ data[i+4] != 5 || data[i+5] != 6 ||
+ data[i+6] != 7 || data[i+7] != 8) {
+ fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n",
+ program_name, i);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ free (data);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--
2.7.4

116
0007-protocol-Send-limited-range-of-errno-values-to-the-c.patch Normal file
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@ -0,0 +1,116 @@
From f141228d1b6baddadcd516137d76b3d852af8cde Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Tue, 12 Jan 2016 12:16:48 +0000
Subject: [PATCH 07/10] protocol: Send limited range of errno values to the
client.
See the proposal here:
http://article.gmane.org/gmane.linux.drivers.nbd.general/3154
This implementation is based on Paolo Bonzini's for qemu-nbd:
http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ca4414804114fd0095b317785bc0b51862e62ebb
---
TODO | 6 ------
src/connections.c | 36 +++++++++++++++++++++++++++++++++++-
src/protocol.h | 12 +++++++++++-
3 files changed, 46 insertions(+), 8 deletions(-)
diff --git a/TODO b/TODO
index d39e64c..177a07c 100644
--- a/TODO
+++ b/TODO
@@ -1,9 +1,3 @@
-* There is a proposal to narrow the range of possible errnos that the
- server can return, and also to encode them in an OS-independent way.
- See: http://article.gmane.org/gmane.linux.drivers.nbd.general/3154
- Implemented in QEMU already:
- http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ca4414804114fd0095b317785bc0b51862e62ebb
-
* Can we do language bindings using #!'s?
You would enter:
nbdkit foo [args]
diff --git a/src/connections.c b/src/connections.c
index 6bdf4ef..f0a7662 100644
--- a/src/connections.c
+++ b/src/connections.c
@@ -639,6 +639,31 @@ skip_over_write_buffer (int sock, size_t count)
}
}
+/* Convert a system errno to an NBD_E* error code. */
+static int
+nbd_errno (int error)
+{
+ switch (error) {
+ case 0:
+ return NBD_SUCCESS;
+ case EPERM:
+ return NBD_EPERM;
+ case EIO:
+ return NBD_EIO;
+ case ENOMEM:
+ return NBD_ENOMEM;
+#ifdef EDQUOT
+ case EDQUOT:
+#endif
+ case EFBIG:
+ case ENOSPC:
+ return NBD_ENOSPC;
+ case EINVAL:
+ default:
+ return NBD_EINVAL;
+ }
+}
+
static int
recv_request_send_reply (struct connection *conn)
{
@@ -722,7 +747,16 @@ recv_request_send_reply (struct connection *conn)
send_reply:
reply.magic = htobe32 (NBD_REPLY_MAGIC);
reply.handle = request.handle;
- reply.error = htobe32 (error);
+ reply.error = htobe32 (nbd_errno (error));
+
+ if (error != 0) {
+ /* Since we're about to send only the limited NBD_E* errno to the
+ * client, don't lose the information about what really happened
+ * on the server side. Make sure there is a way for the operator
+ * to retrieve the real error.
+ */
+ debug ("sending error reply: %s", strerror (error));
+ }
r = xwrite (conn->sockout, &reply, sizeof reply);
if (r == -1) {
diff --git a/src/protocol.h b/src/protocol.h
index 2f9a341..fcbc145 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -118,7 +118,7 @@ struct request {
/* Reply (server -> client). */
struct reply {
uint32_t magic; /* NBD_REPLY_MAGIC. */
- uint32_t error; /* 0 = ok, error code */
+ uint32_t error; /* NBD_SUCCESS or one of NBD_E*. */
uint64_t handle; /* Opaque handle. */
} __attribute__((packed));
@@ -133,4 +133,14 @@ struct reply {
#define NBD_CMD_MASK_COMMAND 0xffff
#define NBD_CMD_FLAG_FUA (1<<16)
+/* Error codes (previously errno).
+ * See http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ca4414804114fd0095b317785bc0b51862e62ebb
+ */
+#define NBD_SUCCESS 0
+#define NBD_EPERM 1
+#define NBD_EIO 5
+#define NBD_ENOMEM 12
+#define NBD_EINVAL 22
+#define NBD_ENOSPC 28
+
#endif /* NBDKIT_PROTOCOL_H */
--
2.7.4

27
0008-protocol-Pack-fixed_new_option_reply-struct.patch Normal file
View File

@ -0,0 +1,27 @@
From e5a945ea1e759e6441773c1e7663a1ac2492c8e4 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Tue, 17 May 2016 19:40:29 +0100
Subject: [PATCH 08/10] protocol: Pack fixed_new_option_reply struct.
This struct was not packed, but we were sending a reply by sending the
struct directly onto the wire. I think we got away with it, but not good.
---
src/protocol.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/protocol.h b/src/protocol.h
index fcbc145..de511a6 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -72,7 +72,7 @@ struct fixed_new_option_reply {
uint32_t reply; /* NBD_REP_* */
uint32_t replylen; /* we always send zero at the moment */
/* reply data follows, but we currently never send any */
-};
+} __attribute__((packed));
#define NEW_OPTION_REPLY UINT64_C(0x3e889045565a9)
--
2.7.4

48
0009-protocol-Rename-NEW_OPTION_REPLY-as-NBD_REP_MAGIC.patch Normal file
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@ -0,0 +1,48 @@
From f989fbad9b0527925c38f4350190cb1536a4d8c2 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Tue, 17 May 2016 19:42:35 +0100
Subject: [PATCH 09/10] protocol: Rename NEW_OPTION_REPLY as NBD_REP_MAGIC.
To be consistent with qemu's implementation.
---
src/connections.c | 2 +-
src/protocol.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/connections.c b/src/connections.c
index f0a7662..34566b3 100644
--- a/src/connections.c
+++ b/src/connections.c
@@ -235,7 +235,7 @@ send_newstyle_option_reply (struct connection *conn,
{
struct fixed_new_option_reply fixed_new_option_reply;
- fixed_new_option_reply.magic = htobe64 (NEW_OPTION_REPLY);
+ fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
fixed_new_option_reply.option = htobe32 (option);
fixed_new_option_reply.reply = htobe32 (reply);
fixed_new_option_reply.replylen = htobe32 (0);
diff --git a/src/protocol.h b/src/protocol.h
index de511a6..71a8098 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -67,14 +67,14 @@ struct new_option {
/* Fixed newstyle handshake reply message. */
struct fixed_new_option_reply {
- uint64_t magic; /* NEW_OPTION_REPLY, network byte order */
+ uint64_t magic; /* NBD_REP_MAGIC, network byte order */
uint32_t option; /* option we are replying to */
uint32_t reply; /* NBD_REP_* */
uint32_t replylen; /* we always send zero at the moment */
/* reply data follows, but we currently never send any */
} __attribute__((packed));
-#define NEW_OPTION_REPLY UINT64_C(0x3e889045565a9)
+#define NBD_REP_MAGIC UINT64_C(0x3e889045565a9)
/* New-style handshake server reply. */
struct new_handshake_finish {
--
2.7.4

360
0010-Implement-newstyle-export-names.patch Normal file
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@ -0,0 +1,360 @@
From 0095b003b56894baad8e6789d523cf3c51905c05 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Tue, 17 May 2016 19:43:16 +0100
Subject: [PATCH 10/10] Implement newstyle export names.
This is now required by qemu >= 2.6. See this lengthy qemu-devel
thread for details:
https://lists.nongnu.org/archive/html/qemu-devel/2016-05/threads.html#02752
---
TODO | 13 -------------
docs/nbdkit.pod | 52 ++++++++++++++++++++++++++++++++-------------------
src/connections.c | 49 ++++++++++++++++++++++++++++++++++++++++--------
src/internal.h | 1 +
src/main.c | 32 +++++++++++++++++++++++--------
src/protocol.h | 3 +--
tests/test-newstyle.c | 7 +++++--
7 files changed, 105 insertions(+), 52 deletions(-)
diff --git a/TODO b/TODO
index 177a07c..30bf72e 100644
--- a/TODO
+++ b/TODO
@@ -11,19 +11,6 @@
* Performance - measure and improve it.
-* Implement export names. With export names it should be possible to
- have multiple plugins on the command line (each responding to a
- different export of course):
-
- nbdkit --export /foo plugin.so --export /bar another-plugin.so
-
- Note it should also be possible to either elect one plugin as the
- default that accepts all exportnames, or to divide the export name
- "space" up using regexps or wildcards.
-
- Export names are not actually paths (although that is how they are
- often used), but arbitrary UTF-8 text strings.
-
* Implement true parallel request handling. Currently
NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS and
NBDKIT_THREAD_MODEL_PARALLEL are the same, because we handle
diff --git a/docs/nbdkit.pod b/docs/nbdkit.pod
index 7204a38..728aad3 100644
--- a/docs/nbdkit.pod
+++ b/docs/nbdkit.pod
@@ -6,7 +6,7 @@ nbdkit - A toolkit for creating NBD servers
=head1 SYNOPSIS
- nbdkit [--dump-config] [-f] [-g GROUP] [-i IPADDR]
+ nbdkit [--dump-config] [-e EXPORTNAME] [-f] [-g GROUP] [-i IPADDR]
[--newstyle] [--oldstyle] [-P PIDFILE] [-p PORT] [-r]
[--run CMD] [-s] [-U SOCKET] [-u USER] [-v] [-V]
PLUGIN [key=value [key=value [...]]]
@@ -74,6 +74,19 @@ Display brief command line usage information and exit.
Dump out the compile-time configuration values and exit.
+=item B<-e> EXPORTNAME
+
+=item B<--export> EXPORTNAME
+
+=item B<--export-name> EXPORTNAME
+
+=item B<--exportname> EXPORTNAME
+
+Set the exportname and use the newstyle protocol (implies I<-n>).
+
+If not set, exportname C<""> (empty string) is used. Exportnames are
+not allowed with the oldstyle protocol.
+
=item B<-f>
=item B<--foreground>
@@ -118,9 +131,10 @@ protocol. See L</NEW STYLE VS OLD STYLE PROTOCOL> below.
=item B<--oldstyle>
-Use the oldstyle NBD protocol. This is currently the default, so this
-flag does nothing, but it is possible we might change the default
-protocol in future. See L</NEW STYLE VS OLD STYLE PROTOCOL> below.
+Use the oldstyle NBD protocol. This is currently the default (unless
+you use I<-n> or I<-e>), so this flag does nothing, but it is possible
+we might change the default protocol in future. See L</NEW STYLE VS
+OLD STYLE PROTOCOL> below.
=item B<-P> PIDFILE
@@ -307,27 +321,29 @@ use depends on the client and cannot be known in advance, nor can it
be negotiated from the server side.
nbdkit currently defaults to the oldstyle protocol for compatibility
-with qemu and libguestfs. This is also the same behaviour as
-qemu-nbd. Use the I<-n> or I<--newstyle> flag on the command line to
-use the newstyle protocol. Use the I<-o> or I<--oldstyle> flag to
-force the oldstyle protocol.
+with qemu and libguestfs. This is also the same behaviour as qemu-nbd
+E<le> 2.5. Use the I<-n> or I<--newstyle> flag on the command line to
+use the newstyle protocol. Use the I<-e> or I<--exportname> flag to
+set the exportname for the newstyle protocol. Use the I<-o> or
+I<--oldstyle> flag to force the oldstyle protocol.
Some common clients and the protocol they require:
- Client Protocol
+ Client Protocol
------------------------------------------------------------
- qemu without exportname oldstyle
- qemu with exportname newstyle
- nbd-client < 3.10 client can talk either protocol
- nbd-client >= 3.10 newstyle
+ qemu <= 2.5 without exportname oldstyle
+ qemu <= 2.5 with exportname newstyle
+ qemu >= 2.6 client can talk either protocol
+ nbd-client < 3.10 client can talk either protocol
+ nbd-client >= 3.10 newstyle
-If you use qemu without the exportname field against a newstyle
-server, it will give the error:
+If you use qemu E<le> 2.5 without the exportname field against a
+newstyle server, it will give the error:
Server requires an export name
-If you use qemu with the exportname field against an oldstyle server,
-it will give the error:
+If you use qemu E<le> 2.5 with the exportname field against an
+oldstyle server, it will give the error:
Server does not support export names
@@ -341,8 +357,6 @@ document says should be the case (which isn't based in reality), then
you should always use newstyle when using port 10809, and use oldstyle
on all other ports.
-nbdkit ignores export names at present (see also the C<TODO> file).
-
=head1 SIGNALS
C<nbdkit> responds to the following signals:
diff --git a/src/connections.c b/src/connections.c
index 34566b3..0c93f35 100644
--- a/src/connections.c
+++ b/src/connections.c
@@ -222,13 +222,8 @@ _negotiate_handshake_oldstyle (struct connection *conn)
return 0;
}
-/* Receive newstyle options.
- *
- * Currently we ignore NBD_OPT_EXPORT_NAME (see TODO), we close the
- * connection if sent NBD_OPT_ABORT, we send a canned list of
- * options for NBD_OPT_LIST, and we send NBD_REP_ERR_UNSUP for
- * everything else.
- */
+/* Receive newstyle options. */
+
static int
send_newstyle_option_reply (struct connection *conn,
uint32_t option, uint32_t reply)
@@ -250,6 +245,39 @@ send_newstyle_option_reply (struct connection *conn,
}
static int
+send_newstyle_option_reply_exportname (struct connection *conn,
+ uint32_t option, uint32_t reply,
+ const char *exportname)
+{
+ struct fixed_new_option_reply fixed_new_option_reply;
+ size_t name_len = strlen (exportname);
+ uint32_t len;
+
+ fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
+ fixed_new_option_reply.option = htobe32 (option);
+ fixed_new_option_reply.reply = htobe32 (reply);
+ fixed_new_option_reply.replylen = htobe32 (name_len + sizeof (len));
+
+ if (xwrite (conn->sockout,
+ &fixed_new_option_reply, sizeof fixed_new_option_reply) == -1) {
+ nbdkit_error ("write: %m");
+ return -1;
+ }
+
+ len = htobe32 (name_len);
+ if (xwrite (conn->sockout, &len, sizeof len) == -1) {
+ nbdkit_error ("write: %m");
+ return -1;
+ }
+ if (xwrite (conn->sockout, exportname, name_len) == -1) {
+ nbdkit_error ("write: %m");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
_negotiate_handshake_newstyle_options (struct connection *conn)
{
struct new_option new_option;
@@ -309,7 +337,12 @@ _negotiate_handshake_newstyle_options (struct connection *conn)
continue;
}
- /* Since we don't support export names, there is nothing to list. */
+ /* Send back the exportname. */
+ debug ("newstyle negotiation: advertising export '%s'", exportname);
+ if (send_newstyle_option_reply_exportname (conn, option, NBD_REP_SERVER,
+ exportname) == -1)
+ return -1;
+
if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
return -1;
break;
diff --git a/src/internal.h b/src/internal.h
index 0603779..f58086a 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -48,6 +48,7 @@
#endif
/* main.c */
+extern const char *exportname;
extern const char *ipaddr;
extern int newstyle;
extern const char *port;
diff --git a/src/main.c b/src/main.c
index db4361e..9529f19 100644
--- a/src/main.c
+++ b/src/main.c
@@ -65,6 +65,7 @@ static void fork_into_background (void);
static uid_t parseuser (const char *);
static gid_t parsegroup (const char *);
+const char *exportname; /* -e */
int foreground; /* -f */
const char *ipaddr; /* -i */
int newstyle; /* -n */
@@ -84,10 +85,13 @@ static char *random_fifo = NULL;
enum { HELP_OPTION = CHAR_MAX + 1 };
-static const char *short_options = "fg:i:nop:P:rsu:U:vV";
+static const char *short_options = "e:fg:i:nop:P:rsu:U:vV";
static const struct option long_options[] = {
{ "help", 0, NULL, HELP_OPTION },
{ "dump-config",0, NULL, 0 },
+ { "export", 1, NULL, 'e' },
+ { "export-name",1, NULL, 'e' },
+ { "exportname", 1, NULL, 'e' },
{ "foreground", 0, NULL, 'f' },
{ "no-fork", 0, NULL, 'f' },
{ "group", 1, NULL, 'g' },
@@ -115,7 +119,7 @@ static const struct option long_options[] = {
static void
usage (void)
{
- printf ("nbdkit [--dump-config] [-f] [-g GROUP] [-i IPADDR]\n"
+ printf ("nbdkit [--dump-config] [-e EXPORTNAME] [-f] [-g GROUP] [-i IPADDR]\n"
" [--newstyle] [--oldstyle] [-P PIDFILE] [-p PORT] [-r]\n"
" [--run CMD] [-s] [-U SOCKET] [-u USER] [-v] [-V]\n"
" PLUGIN [key=value [key=value [...]]]\n"
@@ -173,6 +177,11 @@ main (int argc, char *argv[])
}
break;
+ case 'e':
+ exportname = optarg;
+ newstyle = 1;
+ break;
+
case 'f':
foreground = 1;
break;
@@ -190,9 +199,6 @@ main (int argc, char *argv[])
break;
case 'o':
- /* XXX When we add support for exportnames, we will need to
- * ensure that the user does not use -o + --export.
- */
newstyle = 0;
break;
@@ -263,12 +269,22 @@ main (int argc, char *argv[])
exit (EXIT_FAILURE);
}
+ /* Oldstyle protocol + exportname not allowed. */
+ if (newstyle == 0 && exportname != NULL) {
+ fprintf (stderr,
+ "%s: cannot use oldstyle protocol (-o) and exportname (-e)\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* If exportname was not set on the command line, use "". */
+ if (exportname == NULL)
+ exportname = "";
+
/* Remaining command line arguments define the plugins and plugin
* configuration. If --help or --version was specified, we still
* partially parse these in order that we can display the per-plugin
- * help/version information. In future (when the new protocol and
- * export names are permitted) we will allow multiple plugins to be
- * given, but at the moment only one plugin is allowed.
+ * help/version information.
*/
while (optind < argc) {
const char *filename = argv[optind];
diff --git a/src/protocol.h b/src/protocol.h
index 71a8098..c885d9e 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -70,8 +70,7 @@ struct fixed_new_option_reply {
uint64_t magic; /* NBD_REP_MAGIC, network byte order */
uint32_t option; /* option we are replying to */
uint32_t reply; /* NBD_REP_* */
- uint32_t replylen; /* we always send zero at the moment */
- /* reply data follows, but we currently never send any */
+ uint32_t replylen;
} __attribute__((packed));
#define NBD_REP_MAGIC UINT64_C(0x3e889045565a9)
diff --git a/tests/test-newstyle.c b/tests/test-newstyle.c
index b1d8ce7..adcc568 100644
--- a/tests/test-newstyle.c
+++ b/tests/test-newstyle.c
@@ -44,6 +44,8 @@
#include "test.h"
+#define EXPORTNAME "/"
+
int
main (int argc, char *argv[])
{
@@ -52,7 +54,8 @@ main (int argc, char *argv[])
char *data;
size_t i, size;
- if (test_start_nbdkit ("-n", NBDKIT_PLUGIN ("file"), "file=file-data",
+ if (test_start_nbdkit ("-e", EXPORTNAME,
+ "-n", NBDKIT_PLUGIN ("file"), "file=file-data",
NULL) == -1)
exit (EXIT_FAILURE);
@@ -63,7 +66,7 @@ main (int argc, char *argv[])
}
/* Using any exportname causes qemu to use the newstyle protocol. */
- r = guestfs_add_drive_opts (g, "/" /* exportname */,
+ r = guestfs_add_drive_opts (g, EXPORTNAME,
GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
--
2.7.4

25
nbdkit.spec
View File

@ -6,7 +6,7 @@
Name: nbdkit
Version: 1.1.11
Release: 7%{?dist}
Release: 8%{?dist}
Summary: NBD server
License: BSD
@ -15,11 +15,17 @@ URL: https://github.com/libguestfs/nbdkit
Source0: http://libguestfs.org/download/nbdkit/%{name}-%{version}.tar.gz
# All patches are upstream since 1.1.11.
Patch1: 0001-Add-mandir-to-dump-config-output.patch
Patch2: 0002-Update-TODO.patch
Patch3: 0003-Add-support-for-newstyle-NBD-protocol-RHBZ-1297100.patch
Patch4: 0004-xz-Fix-various-printf-warnings-on-32-bit.patch
Patch5: 0005-ocaml-Avoid-race-when-building-NBDKit.cmi.patch
Patch0001: 0001-Add-mandir-to-dump-config-output.patch
Patch0002: 0002-Update-TODO.patch
Patch0003: 0003-Add-support-for-newstyle-NBD-protocol-RHBZ-1297100.patch
Patch0004: 0004-xz-Fix-various-printf-warnings-on-32-bit.patch
Patch0005: 0005-ocaml-Avoid-race-when-building-NBDKit.cmi.patch
Patch0006: 0006-Test-the-o-oldstyle-command-line-option.patch
Patch0007: 0007-protocol-Send-limited-range-of-errno-values-to-the-c.patch
Patch0008: 0008-protocol-Pack-fixed_new_option_reply-struct.patch
Patch0009: 0009-protocol-Rename-NEW_OPTION_REPLY-as-NBD_REP_MAGIC.patch
Patch0010: 0010-Implement-newstyle-export-names.patch
# Because patch3 & patch5 patches Makefile.am, we need:
BuildRequires: automake, autoconf, libtool
@ -258,15 +264,12 @@ export LIBGUESTFS_TRACE=1
# Unlikely that libguestfs will work on ARM and PPC, so don't try running the
# tests there.
%ifnarch %{arm} ppc %{power64}
# Broken on i686 because of https://bugzilla.redhat.com/show_bug.cgi?id=1302071
%ifnarch %{ix86}
make check || {
cat tests/test-suite.log
exit 1
}
%endif
%endif
%endif
%ifarch %{ocaml_native_compiler}
@ -368,6 +371,10 @@ make check || {
%changelog
* Thu May 19 2016 Richard W.M. Jones <rjones@redhat.com> - 1.1.11-8
- Add all patches upstream since 1.1.11 (fixes RHBZ#1336758).
- Reenable tests on x86.
* Tue May 17 2016 Jitka Plesnikova <jplesnik@redhat.com> - 1.1.11-7
- Perl 5.24 rebuild