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Generate non-colliding network IP range at RPM install time (bz #811967) 

Fix directory creation at session daemon startup (bz #1139672)
Disable wireshark building, currently broken on f21/rawhide
This commit is contained in:
Cole Robinson 2014-09-15 14:52:07 -04:00
parent 11b596669a
commit a540751e83
9 changed files with 804 additions and 2 deletions
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88
0001-network-try-to-eliminate-default-network-conflict-du.patch Normal file
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@ -0,0 +1,88 @@
From 935cd0c56643d28a5c60ff6658b16bd4c2fd920c Mon Sep 17 00:00:00 2001
From: Laine Stump <laine@laine.org>
Date: Wed, 10 Sep 2014 13:10:45 -0400
Subject: [PATCH] network: try to eliminate default network conflict during
package install
Sometimes libvirt is installed on a host that is already using the
network 192.168.122.0/24. If the libvirt-daemon-config-network package
is installed, this creates a conflict, since that package has been
hard-coded to create a virtual network that also uses
192.168.122.0/24. In the past libvirt has attempted to warn of /
remediate this situation by checking for conflicting routes when the
network is started, but it turns out that isn't always useful (for
example in the case that the *other* interface/network creating the
conflict hasn't yet been started at the time libvirtd start its own
networks).
This patch attempts to catch the problem earlier - at install
time. During the %post install script for
libvirt-daemon-config-network, we use a case statement to look through
the output of "ip route show" for a route that exactly matches
192.168.122.0/24, and if found we search for a similar route that
*doesn't* match (e.g. 192.168.124.0/24) (note that the search starts
with "124" instead of 123 because of reports of people already
modifying their L1 host's network to 192.168.123.0/24 in an attempt to
solve exactly the problem we are also trying to solve). When we find
an available route, we just replace all occurrences of "122" in the
default.xml that is being created with the newly found 192.168
subnet. This could obviously be made more complicated - examine the
template defaul.xml to automatically determine the existing network
address and mask rather than hard coding it in the specfile, etc, but
this scripting is simpler and gets the job done as long as we continue
to use 192.168.122.0/24 in the template. (If anyone with mad bash
skillz wants to suggest something to do that, by all means please do).
This is intended to at least "further reduce" occurrence of the
problems detailed in:
https://bugzilla.redhat.com/show_bug.cgi?id=811967
(cherry picked from commit 5f71959667e4902d738a849e7c9391e794fccf22)
---
libvirt.spec.in | 31 ++++++++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/libvirt.spec.in b/libvirt.spec.in
index 4dc801b..75a91f5 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1732,8 +1732,37 @@ fi
%if %{with_network}
%post daemon-config-network
if test $1 -eq 1 && test ! -f %{_sysconfdir}/libvirt/qemu/networks/default.xml ; then
+ # see if the network used by default network creates a conflict,
+ # and try to resolve it
+ # NB: 192.168.122.0/24 is used in the default.xml template file;
+ # do not modify any of those values here without also modifying
+ # them in the template.
+ orig_sub=122
+ sub=${orig_sub}
+ nl='
+'
+ routes="${nl}$(ip route show | cut -d' ' -f1)"
+ case ${routes} in
+ *"${nl}192.168.${orig_sub}.0/24${nl}"*)
+ # there was a match, so we need to look for an unused subnet
+ for new_sub in $(seq 124 254); do
+ case ${routes} in
+ *"${nl}192.168.${new_sub}.0/24${nl}"*)
+ ;;
+ *)
+ sub=$new_sub
+ break;
+ ;;
+ esac
+ done
+ ;;
+ *)
+ ;;
+ esac
+
UUID=`/usr/bin/uuidgen`
- sed -e "s,</name>,</name>\n <uuid>$UUID</uuid>," \
+ sed -e "s/${orig_sub}/${sub}/g" \
+ -e "s,</name>,</name>\n <uuid>$UUID</uuid>," \
< %{_datadir}/libvirt/networks/default.xml \
> %{_sysconfdir}/libvirt/qemu/networks/default.xml
ln -s ../default.xml %{_sysconfdir}/libvirt/qemu/networks/autostart/default.xml

32
0002-network-detect-conflicting-route-even-if-it-is-the-f.patch Normal file
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@ -0,0 +1,32 @@
From ed1efa32c71ba195a16bb63da4ee532d8a6c8a99 Mon Sep 17 00:00:00 2001
From: Laine Stump <laine@laine.org>
Date: Mon, 15 Sep 2014 13:30:08 -0400
Subject: [PATCH] network: detect conflicting route even if it is the final
entry
This is a folloup to commit 5f719596, which checks for a route
conflicting with the standard libvirt default network subnet
(192.168.122.0/24). It turns out that $() strips the trailing newline
from the output of "ip route show", so there would be no match if the
route we were looking for was the final line of output. This can be
solved by adding ${nl} to the end of the output (just as we were
already adding it at the beginning of the output).
(cherry picked from commit 22048ae61dbb7876d17bcf7dbedf9e8d1cf98d4e)
---
libvirt.spec.in | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libvirt.spec.in b/libvirt.spec.in
index 75a91f5..0741c73 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1741,7 +1741,7 @@ if test $1 -eq 1 && test ! -f %{_sysconfdir}/libvirt/qemu/networks/default.xml ;
sub=${orig_sub}
nl='
'
- routes="${nl}$(ip route show | cut -d' ' -f1)"
+ routes="${nl}$(ip route show | cut -d' ' -f1)${nl}"
case ${routes} in
*"${nl}192.168.${orig_sub}.0/24${nl}"*)
# there was a match, so we need to look for an unused subnet

131
0003-rpc-reformat-the-flow-to-make-a-bit-more-sense.patch Normal file
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@ -0,0 +1,131 @@
From 00d63796318b065479eda661ab83503cc1cf8446 Mon Sep 17 00:00:00 2001
From: Martin Kletzander <mkletzan@redhat.com>
Date: Sun, 7 Sep 2014 17:08:57 +0200
Subject: [PATCH] rpc: reformat the flow to make a bit more sense
Just remove useless "else". Best viewed with '-w'.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
(cherry picked from commit 3951d4a6d3d5867eadc82814e8dd9a61d19b68cf)
---
src/rpc/virnetsocket.c | 94 +++++++++++++++++++++++++-------------------------
1 file changed, 47 insertions(+), 47 deletions(-)
diff --git a/src/rpc/virnetsocket.c b/src/rpc/virnetsocket.c
index 9780e17..306c9ea 100644
--- a/src/rpc/virnetsocket.c
+++ b/src/rpc/virnetsocket.c
@@ -574,66 +574,66 @@ int virNetSocketNewConnectUNIX(const char *path,
retry:
if (connect(fd, &remoteAddr.data.sa, remoteAddr.len) < 0) {
+ int status = 0;
+ pid_t pid = 0;
+
if (!spawnDaemon) {
virReportSystemError(errno, _("Failed to connect socket to '%s'"),
path);
goto error;
- } else {
- int status = 0;
- pid_t pid = 0;
-
- if ((passfd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
- virReportSystemError(errno, "%s", _("Failed to create socket"));
- goto error;
- }
+ }
- /*
- * We have to fork() here, because umask() is set
- * per-process, chmod() is racy and fchmod() has undefined
- * behaviour on sockets according to POSIX, so it doesn't
- * work outside Linux.
- */
- if ((pid = virFork()) < 0)
- goto error;
+ if ((passfd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
+ virReportSystemError(errno, "%s", _("Failed to create socket"));
+ goto error;
+ }
- if (pid == 0) {
- umask(0077);
- if (bind(passfd, &remoteAddr.data.sa, remoteAddr.len) < 0)
- _exit(EXIT_FAILURE);
+ /*
+ * We have to fork() here, because umask() is set
+ * per-process, chmod() is racy and fchmod() has undefined
+ * behaviour on sockets according to POSIX, so it doesn't
+ * work outside Linux.
+ */
+ if ((pid = virFork()) < 0)
+ goto error;
- _exit(EXIT_SUCCESS);
- }
+ if (pid == 0) {
+ umask(0077);
+ if (bind(passfd, &remoteAddr.data.sa, remoteAddr.len) < 0)
+ _exit(EXIT_FAILURE);
- if (virProcessWait(pid, &status, false) < 0)
- goto error;
+ _exit(EXIT_SUCCESS);
+ }
- if (status != EXIT_SUCCESS) {
- /*
- * OK, so the subprocces failed to bind() the socket. This may mean
- * that another daemon was starting at the same time and succeeded
- * with its bind(). So we'll try connecting again, but this time
- * without spawning the daemon.
- */
- spawnDaemon = false;
- goto retry;
- }
+ if (virProcessWait(pid, &status, false) < 0)
+ goto error;
- if (listen(passfd, 0) < 0) {
- virReportSystemError(errno, "%s",
- _("Failed to listen on socket that's about "
- "to be passed to the daemon"));
- goto error;
- }
+ if (status != EXIT_SUCCESS) {
+ /*
+ * OK, so the subprocces failed to bind() the socket. This may mean
+ * that another daemon was starting at the same time and succeeded
+ * with its bind(). So we'll try connecting again, but this time
+ * without spawning the daemon.
+ */
+ spawnDaemon = false;
+ goto retry;
+ }
- if (connect(fd, &remoteAddr.data.sa, remoteAddr.len) < 0) {
- virReportSystemError(errno, _("Failed to connect socket to '%s'"),
- path);
- goto error;
- }
+ if (listen(passfd, 0) < 0) {
+ virReportSystemError(errno, "%s",
+ _("Failed to listen on socket that's about "
+ "to be passed to the daemon"));
+ goto error;
+ }
- if (virNetSocketForkDaemon(binary, passfd) < 0)
- goto error;
+ if (connect(fd, &remoteAddr.data.sa, remoteAddr.len) < 0) {
+ virReportSystemError(errno, _("Failed to connect socket to '%s'"),
+ path);
+ goto error;
}
+
+ if (virNetSocketForkDaemon(binary, passfd) < 0)
+ goto error;
}
localAddr.len = sizeof(localAddr.data);

233
0004-remove-redundant-pidfile-path-constructions.patch Normal file
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@ -0,0 +1,233 @@
From 5217124c8f276a9d35b60470a332d887af4cc446 Mon Sep 17 00:00:00 2001
From: Martin Kletzander <mkletzan@redhat.com>
Date: Sun, 7 Sep 2014 19:52:34 +0200
Subject: [PATCH] remove redundant pidfile path constructions
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
(cherry picked from commit 8035f2e6f2db7fc0b74b639deb7eff64957692bc)
---
daemon/libvirtd.c | 41 ++++-----------------------------------
src/libvirt_private.syms | 1 +
src/locking/lock_daemon.c | 42 ++++------------------------------------
src/util/virpidfile.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++-
src/util/virpidfile.h | 7 ++++++-
5 files changed, 63 insertions(+), 77 deletions(-)
diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c
index 0503cd0..61f5486 100644
--- a/daemon/libvirtd.c
+++ b/daemon/libvirtd.c
@@ -251,41 +251,6 @@ static int daemonForkIntoBackground(const char *argv0)
static int
-daemonPidFilePath(bool privileged,
- char **pidfile)
-{
- if (privileged) {
- if (VIR_STRDUP(*pidfile, LOCALSTATEDIR "/run/libvirtd.pid") < 0)
- goto error;
- } else {
- char *rundir = NULL;
- mode_t old_umask;
-
- if (!(rundir = virGetUserRuntimeDirectory()))
- goto error;
-
- old_umask = umask(077);
- if (virFileMakePath(rundir) < 0) {
- umask(old_umask);
- goto error;
- }
- umask(old_umask);
-
- if (virAsprintf(pidfile, "%s/libvirtd.pid", rundir) < 0) {
- VIR_FREE(rundir);
- goto error;
- }
-
- VIR_FREE(rundir);
- }
-
- return 0;
-
- error:
- return -1;
-}
-
-static int
daemonUnixSocketPaths(struct daemonConfig *config,
bool privileged,
char **sockfile,
@@ -1313,8 +1278,10 @@ int main(int argc, char **argv) {
}
if (!pid_file &&
- daemonPidFilePath(privileged,
- &pid_file) < 0) {
+ virPidFileConstructPath(privileged,
+ LOCALSTATEDIR,
+ "libvirtd",
+ &pid_file) < 0) {
VIR_ERROR(_("Can't determine pid file path."));
exit(EXIT_FAILURE);
}
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 71fc063..f8d9b95 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1773,6 +1773,7 @@ virPCIIsVirtualFunction;
virPidFileAcquire;
virPidFileAcquirePath;
virPidFileBuildPath;
+virPidFileConstructPath;
virPidFileDelete;
virPidFileDeletePath;
virPidFileRead;
diff --git a/src/locking/lock_daemon.c b/src/locking/lock_daemon.c
index 02d77e3..fe7cfb8 100644
--- a/src/locking/lock_daemon.c
+++ b/src/locking/lock_daemon.c
@@ -366,42 +366,6 @@ virLockDaemonForkIntoBackground(const char *argv0)
static int
-virLockDaemonPidFilePath(bool privileged,
- char **pidfile)
-{
- if (privileged) {
- if (VIR_STRDUP(*pidfile, LOCALSTATEDIR "/run/virtlockd.pid") < 0)
- goto error;
- } else {
- char *rundir = NULL;
- mode_t old_umask;
-
- if (!(rundir = virGetUserRuntimeDirectory()))
- goto error;
-
- old_umask = umask(077);
- if (virFileMakePath(rundir) < 0) {
- umask(old_umask);
- goto error;
- }
- umask(old_umask);
-
- if (virAsprintf(pidfile, "%s/virtlockd.pid", rundir) < 0) {
- VIR_FREE(rundir);
- goto error;
- }
-
- VIR_FREE(rundir);
- }
-
- return 0;
-
- error:
- return -1;
-}
-
-
-static int
virLockDaemonUnixSocketPaths(bool privileged,
char **sockfile)
{
@@ -1283,8 +1247,10 @@ int main(int argc, char **argv) {
}
if (!pid_file &&
- virLockDaemonPidFilePath(privileged,
- &pid_file) < 0) {
+ virPidFileConstructPath(privileged,
+ LOCALSTATEDIR,
+ "virtlockd",
+ &pid_file) < 0) {
VIR_ERROR(_("Can't determine pid file path."));
exit(EXIT_FAILURE);
}
diff --git a/src/util/virpidfile.c b/src/util/virpidfile.c
index 1d9a1c5..19ec103 100644
--- a/src/util/virpidfile.c
+++ b/src/util/virpidfile.c
@@ -1,7 +1,7 @@
/*
* virpidfile.c: manipulation of pidfiles
*
- * Copyright (C) 2010-2012 Red Hat, Inc.
+ * Copyright (C) 2010-2012, 2014 Red Hat, Inc.
* Copyright (C) 2006, 2007 Binary Karma
* Copyright (C) 2006 Shuveb Hussain
*
@@ -521,3 +521,50 @@ int virPidFileRelease(const char *dir,
VIR_FREE(pidfile);
return rc;
}
+
+
+int
+virPidFileConstructPath(bool privileged,
+ const char *statedir,
+ const char *progname,
+ char **pidfile)
+{
+ if (privileged) {
+ /*
+ * This is here just to allow calling this function with
+ * statedir == NULL; of course only when !privileged.
+ */
+ if (!statedir) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ "%s", _("No statedir specified"));
+ goto cleanup;
+ }
+ if (virAsprintf(pidfile, "%s/run/%s.pid", statedir, progname) < 0)
+ goto cleanup;
+ } else {
+ char *rundir = NULL;
+ mode_t old_umask;
+
+ if (!(rundir = virGetUserRuntimeDirectory()))
+ goto error;
+
+ old_umask = umask(077);
+ if (virFileMakePath(rundir) < 0) {
+ umask(old_umask);
+ goto error;
+ }
+ umask(old_umask);
+
+ if (virAsprintf(pidfile, "%s/%s.pid", rundir, progname) < 0) {
+ VIR_FREE(rundir);
+ goto error;
+ }
+
+ VIR_FREE(rundir);
+ }
+
+ return 0;
+
+ error:
+ return -1;
+}
diff --git a/src/util/virpidfile.h b/src/util/virpidfile.h
index 2720206..ca1dbff 100644
--- a/src/util/virpidfile.h
+++ b/src/util/virpidfile.h
@@ -1,7 +1,7 @@
/*
* virpidfile.h: manipulation of pidfiles
*
- * Copyright (C) 2010-2011 Red Hat, Inc.
+ * Copyright (C) 2010-2011, 2014 Red Hat, Inc.
* Copyright (C) 2006, 2007 Binary Karma
* Copyright (C) 2006 Shuveb Hussain
*
@@ -69,4 +69,9 @@ int virPidFileRelease(const char *dir,
const char *name,
int fd);
+int virPidFileConstructPath(bool privileged,
+ const char *statedir,
+ const char *progname,
+ char **pidfile);
+
#endif /* __VIR_PIDFILE_H__ */

62
0005-util-fix-potential-leak-in-error-codepath.patch Normal file
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@ -0,0 +1,62 @@
From 0bf4b718fafa22c67f84ffd0b4434a5c7b1bce94 Mon Sep 17 00:00:00 2001
From: Martin Kletzander <mkletzan@redhat.com>
Date: Sun, 7 Sep 2014 20:07:49 +0200
Subject: [PATCH] util: fix potential leak in error codepath
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
(cherry picked from commit aaaa2d56bd47556b6857ecca33e4b28ab36c8488)
---
src/util/virpidfile.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/src/util/virpidfile.c b/src/util/virpidfile.c
index 19ec103..dd29701 100644
--- a/src/util/virpidfile.c
+++ b/src/util/virpidfile.c
@@ -529,6 +529,9 @@ virPidFileConstructPath(bool privileged,
const char *progname,
char **pidfile)
{
+ int ret = -1;
+ char *rundir = NULL;
+
if (privileged) {
/*
* This is here just to allow calling this function with
@@ -542,29 +545,27 @@ virPidFileConstructPath(bool privileged,
if (virAsprintf(pidfile, "%s/run/%s.pid", statedir, progname) < 0)
goto cleanup;
} else {
- char *rundir = NULL;
mode_t old_umask;
if (!(rundir = virGetUserRuntimeDirectory()))
- goto error;
+ goto cleanup;
old_umask = umask(077);
if (virFileMakePath(rundir) < 0) {
umask(old_umask);
- goto error;
+ goto cleanup;
}
umask(old_umask);
if (virAsprintf(pidfile, "%s/%s.pid", rundir, progname) < 0) {
VIR_FREE(rundir);
- goto error;
+ goto cleanup;
}
- VIR_FREE(rundir);
}
- return 0;
-
- error:
- return -1;
+ ret = 0;
+ cleanup:
+ VIR_FREE(rundir);
+ return ret;
}

37
0006-util-get-rid-of-unnecessary-umask-call.patch Normal file
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@ -0,0 +1,37 @@
From 51ceb3ceaa2f192a0612b9a794d3282a059d2c9d Mon Sep 17 00:00:00 2001
From: Martin Kletzander <mkletzan@redhat.com>
Date: Sun, 7 Sep 2014 20:09:36 +0200
Subject: [PATCH] util: get rid of unnecessary umask() call
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
(cherry picked from commit d00c6fd25854bfd4822f6ce3d769a8ca132ec31b)
---
src/util/virpidfile.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/src/util/virpidfile.c b/src/util/virpidfile.c
index dd29701..a3b8846 100644
--- a/src/util/virpidfile.c
+++ b/src/util/virpidfile.c
@@ -545,17 +545,15 @@ virPidFileConstructPath(bool privileged,
if (virAsprintf(pidfile, "%s/run/%s.pid", statedir, progname) < 0)
goto cleanup;
} else {
- mode_t old_umask;
-
if (!(rundir = virGetUserRuntimeDirectory()))
goto cleanup;
- old_umask = umask(077);
- if (virFileMakePath(rundir) < 0) {
- umask(old_umask);
+ if (virFileMakePathWithMode(rundir, 0700) < 0) {
+ virReportSystemError(errno,
+ _("Cannot create user runtime directory '%s'"),
+ rundir);
goto cleanup;
}
- umask(old_umask);
if (virAsprintf(pidfile, "%s/%s.pid", rundir, progname) < 0) {
VIR_FREE(rundir);

131
0007-rpc-make-daemon-spawning-a-bit-more-intelligent.patch Normal file
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@ -0,0 +1,131 @@
From 28b27787c5bb545df3c178fef682151c45b66784 Mon Sep 17 00:00:00 2001
From: Martin Kletzander <mkletzan@redhat.com>
Date: Mon, 8 Sep 2014 07:46:39 +0200
Subject: [PATCH] rpc: make daemon spawning a bit more intelligent
This way it behaves more like the daemon itself does (acquiring a
pidfile, deleting the socket before binding, etc.).
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=927369
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1138604
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
---
src/rpc/virnetsocket.c | 57 ++++++++++++++++++++++++++++++++++++++++++++------
1 file changed, 51 insertions(+), 6 deletions(-)
diff --git a/src/rpc/virnetsocket.c b/src/rpc/virnetsocket.c
index 306c9ea..fa9ba99 100644
--- a/src/rpc/virnetsocket.c
+++ b/src/rpc/virnetsocket.c
@@ -51,9 +51,11 @@
#include "virlog.h"
#include "virfile.h"
#include "virthread.h"
+#include "virpidfile.h"
#include "virprobe.h"
#include "virprocess.h"
#include "virstring.h"
+#include "dirname.h"
#include "passfd.h"
#if WITH_SSH2
@@ -544,7 +546,10 @@ int virNetSocketNewConnectUNIX(const char *path,
const char *binary,
virNetSocketPtr *retsock)
{
+ char *binname = NULL;
+ char *pidpath = NULL;
int fd, passfd = -1;
+ int pidfd = -1;
virSocketAddr localAddr;
virSocketAddr remoteAddr;
@@ -583,16 +588,45 @@ int virNetSocketNewConnectUNIX(const char *path,
goto error;
}
+ if (!(binname = last_component(binary)) || binname[0] == '\0') {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Cannot determine basename for binary '%s'"),
+ binary);
+ goto error;
+ }
+
+ if (virPidFileConstructPath(false, NULL, binname, &pidpath) < 0)
+ goto error;
+
+ if ((pidfd = virPidFileAcquirePath(pidpath, false, getpid())) < 0) {
+ /*
+ * This can happen in a very rare case of two clients spawning two
+ * daemons at the same time, and the error in the logs that gets
+ * reset here can be a clue to some future debugging.
+ */
+ virResetLastError();
+ spawnDaemon = false;
+ goto retry;
+ }
+
if ((passfd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
virReportSystemError(errno, "%s", _("Failed to create socket"));
goto error;
}
/*
- * We have to fork() here, because umask() is set
- * per-process, chmod() is racy and fchmod() has undefined
- * behaviour on sockets according to POSIX, so it doesn't
- * work outside Linux.
+ * We already even acquired the pidfile, so noone else should be using
+ * @path right now. So we're OK to unlink it and paying attention to
+ * the return value makes no real sense here. Only if it's not an
+ * abstract socket, of course.
+ */
+ if (path[0] != '@')
+ unlink(path);
+
+ /*
+ * We have to fork() here, because umask() is set per-process, chmod()
+ * is racy and fchmod() has undefined behaviour on sockets according to
+ * POSIX, so it doesn't work outside Linux.
*/
if ((pid = virFork()) < 0)
goto error;
@@ -612,8 +646,9 @@ int virNetSocketNewConnectUNIX(const char *path,
/*
* OK, so the subprocces failed to bind() the socket. This may mean
* that another daemon was starting at the same time and succeeded
- * with its bind(). So we'll try connecting again, but this time
- * without spawning the daemon.
+ * with its bind() (even though it should not happen because we
+ * using a pidfile for the race). So we'll try connecting again,
+ * but this time without spawning the daemon.
*/
spawnDaemon = false;
goto retry;
@@ -632,6 +667,12 @@ int virNetSocketNewConnectUNIX(const char *path,
goto error;
}
+ /*
+ * Do we need to eliminate the super-rare race here any more? It would
+ * need incorporating the following VIR_FORCE_CLOSE() into a
+ * virCommandHook inside a virNetSocketForkDaemon().
+ */
+ VIR_FORCE_CLOSE(pidfd);
if (virNetSocketForkDaemon(binary, passfd) < 0)
goto error;
}
@@ -648,8 +689,12 @@ int virNetSocketNewConnectUNIX(const char *path,
return 0;
error:
+ if (pidfd > 0)
+ virPidFileDeletePath(pidpath);
+ VIR_FREE(pidpath);
VIR_FORCE_CLOSE(fd);
VIR_FORCE_CLOSE(passfd);
+ VIR_FORCE_CLOSE(pidfd);
if (spawnDaemon)
unlink(path);
return -1;

24
0008-spec-Don-t-build-wireshark-on-f21-non-upstream.patch Normal file
View File

@ -0,0 +1,24 @@
From 2950887a9e7800e0421dadb0b9c348adb087deca Mon Sep 17 00:00:00 2001
From: Cole Robinson <crobinso@redhat.com>
Date: Mon, 15 Sep 2014 14:49:35 -0400
Subject: [PATCH] spec: Don't build wireshark on f21 (non upstream)
wireshark bug: https://bugzilla.redhat.com/show_bug.cgi?id=1129419
---
libvirt.spec.in | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libvirt.spec.in b/libvirt.spec.in
index 0741c73..7d8748d 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -267,6 +267,9 @@
%if 0%{?fedora} >= 21
%define with_wireshark 0%{!?_without_wireshark:1}
%endif
+# Except this is presently busted on F21/rawhide with wireshark 1.12.0
+# https://bugzilla.redhat.com/show_bug.cgi?id=1129419
+%define with_wireshark 0
# Disable some drivers when building without libvirt daemon.
# The logic is the same as in configure.ac

68
libvirt.spec
View File

@ -366,7 +366,7 @@
Summary: Library providing a simple virtualization API
Name: libvirt
Version: 1.2.8
Release: 1%{?dist}%{?extra_release}
Release: 2%{?dist}%{?extra_release}
License: LGPLv2+
Group: Development/Libraries
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
@ -377,6 +377,21 @@ URL: http://libvirt.org/
%endif
Source: http://libvirt.org/sources/%{?mainturl}libvirt-%{version}.tar.gz
# Generate non-colliding network IP range at RPM install time (bz
# #811967)
Patch0001: 0001-network-try-to-eliminate-default-network-conflict-du.patch
Patch0002: 0002-network-detect-conflicting-route-even-if-it-is-the-f.patch
# Fix directory creation at session daemon startup (bz #1139672)
# (Patch 5 is posted but not in git as of 2014-09-15)
Patch0003: 0003-rpc-reformat-the-flow-to-make-a-bit-more-sense.patch
Patch0004: 0004-remove-redundant-pidfile-path-constructions.patch
Patch0005: 0005-util-fix-potential-leak-in-error-codepath.patch
Patch0006: 0006-util-get-rid-of-unnecessary-umask-call.patch
Patch0007: 0007-rpc-make-daemon-spawning-a-bit-more-intelligent.patch
# Disable wireshark building, currently broken on f21/rawhide
# Nonupstream patch
Patch0008: 0008-spec-Don-t-build-wireshark-on-f21-non-upstream.patch
%if %{with_libvirtd}
Requires: libvirt-daemon = %{version}-%{release}
%if %{with_network}
@ -1201,6 +1216,21 @@ driver
%prep
%setup -q
# Generate non-colliding network IP range at RPM install time (bz
# #811967)
%patch0001 -p1
%patch0002 -p1
# Fix directory creation at session daemon startup (bz #1139672)
# (Patch 5 is posted but not in git as of 2014-09-15)
%patch0003 -p1
%patch0004 -p1
%patch0005 -p1
%patch0006 -p1
%patch0007 -p1
# Disable wireshark building, currently broken on f21/rawhide
# Nonupstream patch
%patch0008 -p1
%build
%if ! %{with_xen}
%define _without_xen --without-xen
@ -1735,8 +1765,37 @@ fi
%if %{with_network}
%post daemon-config-network
if test $1 -eq 1 && test ! -f %{_sysconfdir}/libvirt/qemu/networks/default.xml ; then
# see if the network used by default network creates a conflict,
# and try to resolve it
# NB: 192.168.122.0/24 is used in the default.xml template file;
# do not modify any of those values here without also modifying
# them in the template.
orig_sub=122
sub=${orig_sub}
nl='
'
routes="${nl}$(ip route show | cut -d' ' -f1)${nl}"
case ${routes} in
*"${nl}192.168.${orig_sub}.0/24${nl}"*)
# there was a match, so we need to look for an unused subnet
for new_sub in $(seq 124 254); do
case ${routes} in
*"${nl}192.168.${new_sub}.0/24${nl}"*)
;;
*)
sub=$new_sub
break;
;;
esac
done
;;
*)
;;
esac
UUID=`/usr/bin/uuidgen`
sed -e "s,</name>,</name>\n <uuid>$UUID</uuid>," \
sed -e "s/${orig_sub}/${sub}/g" \
-e "s,</name>,</name>\n <uuid>$UUID</uuid>," \
< %{_datadir}/libvirt/networks/default.xml \
> %{_sysconfdir}/libvirt/qemu/networks/default.xml
ln -s ../default.xml %{_sysconfdir}/libvirt/qemu/networks/autostart/default.xml
@ -2250,6 +2309,11 @@ exit 0
%doc examples/systemtap
%changelog
* Mon Sep 15 2014 Cole Robinson <crobinso@redhat.com> - 1.2.8-2
- Generate non-colliding network IP range at RPM install time (bz #811967)
- Fix directory creation at session daemon startup (bz #1139672)
- Disable wireshark building, currently broken on f21/rawhide
* Fri Sep 5 2014 Daniel P. Berrange <berrange@redhat.com> - 1.2.8-1
- Update to 1.2.8 release