February 2010 - Devel - libvirt List Archives

[libvirt] [PATCH 0/1] A couple of problems with the daemon-conf test
by David Allan 20 Feb '10

20 Feb '10

Here's a patch fixing two problems I found with the daemon-conf test that prevented the test from passing if the system libvirt was running on my system. The first change only affects the direct running of the daemon-conf script, i.e, if someone executes ./daemon-conf, which will always exit failure because the default config file contains a line that the test believes should not be there. The invocation by make-check supplies a different config file that's not subject to that problem. The second problem is that the corrupt config tests don't supply the pid-file argument to libvirt, so on my system it was attempting to use the same pidfile as the running system daemon and failing all the tests except the valid config test. Supplying the --pid-file argument when running the corrupt config tests as it is supplied for the valid config tests fixes the problem. Dave

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[libvirt] [PATCH] virFork: placate static analyzers: ignore pthread_sigmask return value
by Jim Meyering 20 Feb '10

20 Feb '10

Since we check all other uses of pthread_sigmask, be consistent and clear: mark that we're deliberately ignoring this one. >From 0cb4b2ffa51bb8c73243876221bff6d7edecd9cf Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Fri, 19 Feb 2010 18:40:14 +0100 Subject: [PATCH] virFork: placate static analyzers: ignore pthread_sigmask return value * src/util/util.c: Include "ignore-value.h". (virFork): We really do want to ignore pthread_sigmask failure. --- src/util/util.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/src/util/util.c b/src/util/util.c index 624e570..cf7bba5 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -69,6 +69,7 @@ #include "virterror_internal.h" #include "logging.h" #include "event.h" +#include "ignore-value.h" #include "buf.h" #include "util.h" #include "memory.h" @@ -344,7 +345,7 @@ int virFork(pid_t *pid) { if (*pid < 0) { /* attempt to restore signal mask, but ignore failure, to avoid obscuring the fork failure */ - pthread_sigmask(SIG_SETMASK, &oldmask, NULL); + ignore_value (pthread_sigmask(SIG_SETMASK, &oldmask, NULL)); virReportSystemError(saved_errno, "%s", _("cannot fork child process")); goto cleanup; -- 1.7.0.233.g05e1a

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[libvirt] [PATCH] virBufferVSprintf: do not omit va_end(argptr) call
by Jim Meyering 20 Feb '10

20 Feb '10

Just realized I didn't post a version of this without the gnulib diff that Eric pointed out, so here you go: >From 4501145dd3529dc510e6cb52025a71dd0b111b4d Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 18 Feb 2010 21:25:01 +0100 Subject: [PATCH] virBufferVSprintf: do not omit va_end(argptr) call * src/util/buf.c (virBufferVSprintf): Do not omit va_end(argptr). Improved-by: Daniel Veillard. --- src/util/buf.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/src/util/buf.c b/src/util/buf.c index cc0a087..fc1217b 100644 --- a/src/util/buf.c +++ b/src/util/buf.c @@ -245,12 +245,15 @@ virBufferVSprintf(const virBufferPtr buf, const char *format, ...) va_end(locarg); grow_size = (count > 1000) ? count : 1000; - if (virBufferGrow(buf, grow_size) < 0) + if (virBufferGrow(buf, grow_size) < 0) { + va_end(argptr); return; + } size = buf->size - buf->use - 1; va_copy(locarg, argptr); } + va_end(argptr); va_end(locarg); buf->use += count; buf->content[buf->use] = '\0'; -- 1.7.0.233.g05e1a

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[libvirt] [PATCH] xend_internal.c: don't dereference NULL for unexpected input
by Jim Meyering 20 Feb '10

20 Feb '10

My recent xend_internal.c change introduced a bug. "val" could be NULL just before the STREQ comparisons. Here's a fix: >From 5cc834ab30a444cc35ddc9317379f4be3b5cf4c5 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Fri, 19 Feb 2010 17:45:41 +0100 Subject: [PATCH] xend_internal.c: don't dereference NULL for unexpected input * src/xen/xend_internal.c (xenDaemonDomainSetAutostart): Avoid a NULL dereference upon non-SEXPR_VALUE'd on_xend_start. This bug was introduced by commit 37ce5600c0bb1aed9e2f2888922388de4340ebd3. --- src/xen/xend_internal.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c index 1f8b106..9d95291 100644 --- a/src/xen/xend_internal.c +++ b/src/xen/xend_internal.c @@ -4411,7 +4411,7 @@ xenDaemonDomainSetAutostart(virDomainPtr domain, if (autonode) { const char *val = (autonode->u.s.car->kind == SEXPR_VALUE ? autonode->u.s.car->u.value : NULL); - if (!STREQ(val, "ignore") && !STREQ(val, "start")) { + if (!val || (!STREQ(val, "ignore") && !STREQ(val, "start"))) { virXendError(domain->conn, VIR_ERR_INTERNAL_ERROR, "%s", _("unexpected value from on_xend_start")); goto error; -- 1.7.0.233.g05e1a

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[libvirt] [PATCH 0/2] rework virFileCreate into virFileOperation w/hook function
by Laine Stump 20 Feb '10

20 Feb '10

(This patchset requires that the virFork() patchset I send a couple hours ago be applied first, otherwise it will fail to apply). virFileCreate just didn't have what it takes to get the job done. It turns out that there are other things that must be done to files as the qemu (or whatever) user, so this patchset adds a hook function that gets called during the child process. That solves a problem I found with creating raw storage volumes on root-squash NFS, and will also be used for an upcoming domain-save-on-root-squash-nfs patch. I'm now beginning to think that virFileCreate/virFileOperation is just too narrow in scope, and it's getting too many options. Possibly it will be better to just make a simpler virCallasUID() function that gets a pointer to a function to execute in the child process as an argument and does nothing but fork/setuid/call the function. That function would then contain *all* of the file operations, including creating/opening/closing the file. But that's too large of a change to contemplate so soon before a release, and this functionality is necessary for two important bug fixes (mentioned above), so...

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[libvirt] [PATCH v2] remote: Print ssh stderr on connection failure
by Cole Robinson 20 Feb '10

20 Feb '10

Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/remote/remote_driver.c | 38 +++++++++++++++++++++++++++++++++++--- 1 files changed, 35 insertions(+), 3 deletions(-) diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index 13534ce..8914c39 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -154,6 +154,7 @@ struct private_data { virMutex lock; int sock; /* Socket. */ + int errfd; /* File handle connected to remote stderr */ int watch; /* File handle watch */ pid_t pid; /* PID of tunnel process */ int uses_tls; /* TLS enabled on socket? */ @@ -783,6 +784,7 @@ doRemoteOpen (virConnectPtr conn, case trans_ext: { pid_t pid; int sv[2]; + int errfd[2]; /* Fork off the external process. Use socketpair to create a private * (unnamed) Unix domain socket to the child process so we don't have @@ -794,14 +796,22 @@ doRemoteOpen (virConnectPtr conn, goto failed; } + if (pipe(errfd) == -1) { + virReportSystemError(errno, "%s", + _("unable to create socket pair")); + goto failed; + } + if (virExec((const char**)cmd_argv, NULL, NULL, - &pid, sv[1], &(sv[1]), NULL, + &pid, sv[1], &(sv[1]), &(errfd[1]), VIR_EXEC_CLEAR_CAPS) < 0) goto failed; /* Parent continues here. */ close (sv[1]); + close (errfd[1]); priv->sock = sv[0]; + priv->errfd = errfd[0]; priv->pid = pid; /* Do not set 'is_secure' flag since we can't guarentee @@ -827,6 +837,12 @@ doRemoteOpen (virConnectPtr conn, goto failed; } + if ((priv->errfd != -1) && virSetNonBlock(priv->errfd) < 0) { + virReportSystemError(errno, "%s", + _("unable to make socket non-blocking")); + goto failed; + } + if (pipe(wakeupFD) < 0) { virReportSystemError(errno, "%s", _("unable to make pipe")); @@ -939,6 +955,9 @@ doRemoteOpen (virConnectPtr conn, failed: /* Close the socket if we failed. */ + if (priv->errfd >= 0) + close(priv->errfd); + if (priv->sock >= 0) { if (priv->uses_tls && priv->session) { gnutls_bye (priv->session, GNUTLS_SHUT_RDWR); @@ -986,6 +1005,7 @@ remoteAllocPrivateData(virConnectPtr conn) priv->localUses = 1; priv->watch = -1; priv->sock = -1; + priv->errfd = -1; return priv; } @@ -1408,6 +1428,7 @@ doRemoteClose (virConnectPtr conn, struct private_data *priv) sasl_dispose (&priv->saslconn); #endif close (priv->sock); + close (priv->errfd); #ifndef WIN32 if (priv->pid > 0) { @@ -7785,12 +7806,23 @@ remoteIOReadBuffer(virConnectPtr conn, if (errno == EWOULDBLOCK) return 0; + char errout[1024] = "\0"; + if (priv->errfd != -1) { + saferead(priv->errfd, errout, sizeof(errout)); + } + virReportSystemError(errno, - "%s", _("cannot recv data")); + _("cannot recv data: %s"), errout); + } else { + char errout[1024] = "\0"; + if (priv->errfd != -1) { + saferead(priv->errfd, errout, sizeof(errout)); + } + errorf (in_open ? NULL : conn, VIR_ERR_SYSTEM_ERROR, - "%s", _("server closed connection")); + _("server closed connection: %s"), errout); } return -1; } -- 1.6.5.2

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[libvirt] [PATCH v2] qemu: Check for IA64 kvm
by Cole Robinson 20 Feb '10

20 Feb '10

From: Dustin Xiong <x_k_123(a)hotmail.com> ACPI feature bit dropped: I asked internally if the -no-acpi option had any meaning for IA64, and was told 'probably not'. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/qemu/qemu_conf.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 79bd1e8..f02db9c 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -394,6 +394,7 @@ static const struct qemu_arch_info const arch_info_hvm[] = { { "mipsel", 32, NULL, "qemu-system-mipsel", NULL, NULL, 0 }, { "sparc", 32, NULL, "qemu-system-sparc", NULL, NULL, 0 }, { "ppc", 32, NULL, "qemu-system-ppc", NULL, NULL, 0 }, + { "itanium", 64, NULL, "qemu-system-ia64", NULL, NULL, 0 }, }; static const struct qemu_arch_info const arch_info_xen[] = { -- 1.6.5.2

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[libvirt] [ PATCH ] fix multiple veth problem for OpenVZ
by Yuji NISHIDA 20 Feb '10

20 Feb '10

Dear all This is to fix multiple veth problem. NETIF setting was overwritten after first CT because any CT could not be found by character name. --- src/openvz/openvz_conf.c | 38 ++++++++++++++++++++++++++++++++++++++ src/openvz/openvz_conf.h | 1 + src/openvz/openvz_driver.c | 2 +- 3 files changed, 40 insertions(+), 1 deletions(-) diff --git a/src/openvz/openvz_conf.c b/src/openvz/openvz_conf.c index 43bbaf2..9fb9f7e 100644 --- a/src/openvz/openvz_conf.c +++ b/src/openvz/openvz_conf.c @@ -948,3 +948,41 @@ static int openvzAssignUUIDs(void) VIR_FREE(conf_dir); return 0; } + + +/* + * Return CTID from name + * + */ + +int openvzGetVEID(char *name) { + + char cmd[64]; + int veid; + FILE *fp; + + strcpy( cmd, VZLIST ); + strcat( cmd, " " ); + strcat( cmd, name ); + strcat( cmd, " -ovpsid -H" ); + + if ((fp = popen(cmd, "r")) == NULL) { + openvzError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("popen failed")); + return -1; + } + + if (fscanf(fp, "%d\n", &veid ) != 1) { + if (feof(fp)) + return -1; + + openvzError(NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("Failed to parse vzlist output")); + goto cleanup; + } + + return veid; + + cleanup: + fclose(fp); + return -1; +} diff --git a/src/openvz/openvz_conf.h b/src/openvz/openvz_conf.h index 00e18b4..518c267 100644 --- a/src/openvz/openvz_conf.h +++ b/src/openvz/openvz_conf.h @@ -66,5 +66,6 @@ void openvzFreeDriver(struct openvz_driver *driver); int strtoI(const char *str); int openvzSetDefinedUUID(int vpsid, unsigned char *uuid); unsigned int openvzGetNodeCPUs(void); +int openvzGetVEID(char *name); #endif /* OPENVZ_CONF_H */ diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c index 196fd8c..879b5d0 100644 --- a/src/openvz/openvz_driver.c +++ b/src/openvz/openvz_driver.c @@ -667,7 +667,7 @@ openvzDomainSetNetwork(virConnectPtr conn, const char *vpsid, if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { virBuffer buf = VIR_BUFFER_INITIALIZER; char *dev_name_ve; - int veid = strtoI(vpsid); + int veid = openvzGetVEID(vpsid); //--netif_add ifname[,mac,host_ifname,host_mac] ADD_ARG_LIT("--netif_add") ; -- 1.5.2.2 ----- Yuji Nishida nishidy(a)nict.go.jp

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[libvirt] [PATCH] Make an error message in PCI util code clearer.
by Chris Lalancette 20 Feb '10

20 Feb '10

Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- src/util/pci.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/util/pci.c b/src/util/pci.c index aa8344e..83ed461 100644 --- a/src/util/pci.c +++ b/src/util/pci.c @@ -540,7 +540,7 @@ pciTrySecondaryBusReset(pciDevice *dev, */ if (pciRead(dev, 0, config_space, PCI_CONF_LEN) < 0) { pciReportError(VIR_ERR_NO_SUPPORT, - _("Failed to save PCI config space for %s"), + _("Failed to read PCI config space for %s"), dev->name); goto out; } @@ -586,7 +586,7 @@ pciTryPowerManagementReset(pciDevice *dev) /* Save and restore the device's config space. */ if (pciRead(dev, 0, &config_space[0], PCI_CONF_LEN) < 0) { pciReportError(VIR_ERR_NO_SUPPORT, - _("Failed to save PCI config space for %s"), + _("Failed to read PCI config space for %s"), dev->name); return -1; } -- 1.6.6

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[libvirt] [PATCH] [FIX] macvtap mac_filter support
by Stefan Berger 19 Feb '10

19 Feb '10

Previous posting had an unused variable in the compile case of --without-macvtap. This patch adds the mac_filter support to the macvtap device. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>

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