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[libvirt] virStoragePoolSourceFree(S) does not free S
by Jim Meyering 11 Feb '10

11 Feb '10

I was surprised to see that virStoragePoolSourceFree(S) does not free S. The other three vir*Free functions in storage_conf *do* free S. There are at least three places where this causes leaks. Here's one: virStoragePoolSourcePtr virStoragePoolDefParseSourceString(virConnectPtr conn, const char *srcSpec, int pool_type) { xmlDocPtr doc = NULL; xmlNodePtr node = NULL; xmlXPathContextPtr xpath_ctxt = NULL; virStoragePoolSourcePtr def = NULL, ret = NULL; doc = xmlReadDoc((const xmlChar *)srcSpec, "srcSpec.xml", NULL, XML_PARSE_NOENT | XML_PARSE_NONET | XML_PARSE_NOERROR | XML_PARSE_NOWARNING); if (doc == NULL) { virStorageReportError(conn, VIR_ERR_XML_ERROR, "%s", _("bad <source> spec")); goto cleanup; } xpath_ctxt = xmlXPathNewContext(doc); if (xpath_ctxt == NULL) { virReportOOMError(conn); goto cleanup; } if (VIR_ALLOC(def) < 0) { <<<====== def is alloc'd virReportOOMError(conn); goto cleanup; } node = virXPathNode(conn, "/source", xpath_ctxt); if (!node) { virStorageReportError(conn, VIR_ERR_XML_ERROR, "%s", _("root element was not source")); goto cleanup; } if (virStoragePoolDefParseSource(conn, xpath_ctxt, def, pool_type, node) < 0) goto cleanup; ret = def; def = NULL; cleanup: if (def) virStoragePoolSourceFree(def); <<<<======== yet not freed xmlFreeDoc(doc); xmlXPathFreeContext(xpath_ctxt); return ret; } One fix might be to call VIR_FREE(def) in the "if (def)..." block, but that seems short-sighted, since the name virStoragePoolSourceFree makes me think *it* should be doing the whole job. However, if I make the logical change to virStoragePoolSourceFree, diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 62b8394..ffe38cc 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -291,6 +291,7 @@ virStoragePoolSourceFree(virStoragePoolSourcePtr source) { VIR_FREE(source->auth.chap.login); VIR_FREE(source->auth.chap.passwd); } + VIR_FREE(source); } that causes "make check" to fail miserably due to heap corruption, as reported by valgrind: ==30311== Invalid free() / delete / delete[] ==30311== at 0x4A04D72: free (vg_replace_malloc.c:325) ==30311== by 0x42950C: virFree (memory.c:177) ==30311== by 0x4A2687: virStoragePoolSourceFree (storage_conf.c:294) ==30311== by 0x4A26BD: virStoragePoolDefFree (storage_conf.c:304) ==30311== by 0x4A2723: virStoragePoolObjFree (storage_conf.c:319) ==30311== by 0x4A27A2: virStoragePoolObjListFree (storage_conf.c:334) ==30311== by 0x4757AD: storageDriverShutdown (storage_driver.c:246) ==30311== by 0x4C1E3F: virStateCleanup (libvirt.c:909) ==30311== by 0x4103C5: qemudCleanup (libvirtd.c:2402) ==30311== by 0x41273B: main (libvirtd.c:3196) ==30311== Address 0x5c48c38 is 56 bytes inside a block of size 184 alloc'd ==30311== at 0x4A04481: calloc (vg_replace_malloc.c:418) ==30311== by 0x4293F5: virAlloc (memory.c:100) ==30311== by 0x4A330E: virStoragePoolDefParseXML (storage_conf.c:615) ==30311== by 0x4A3A21: virStoragePoolDefParseNode (storage_conf.c:762) ==30311== by 0x4A3BE6: virStoragePoolDefParse (storage_conf.c:810) ==30311== by 0x4A3C7F: virStoragePoolDefParseFile (storage_conf.c:834) ==30311== by 0x4A5816: virStoragePoolObjLoad (storage_conf.c:1495) ==30311== by 0x4A5BDB: virStoragePoolLoadAllConfigs (storage_conf.c:1575) ==30311== by 0x475598: storageDriverStartup (storage_driver.c:164) ==30311== by 0x4C1D9D: virStateInitialize (libvirt.c:888) ==30311== by 0x4125E9: main (libvirtd.c:3153) I tracked the problem down to this definition in src/conf/storage_conf.h: typedef struct _virStoragePoolDef virStoragePoolDef; typedef virStoragePoolDef *virStoragePoolDefPtr; struct _virStoragePoolDef { /* General metadata */ char *name; unsigned char uuid[VIR_UUID_BUFLEN]; int type; /* virStoragePoolType */ unsigned long long allocation; unsigned long long capacity; unsigned long long available; virStoragePoolSource source; <== this is a *STRUCT*, not a ptr virStoragePoolTarget target; <== Likewise }; Hence, when calling virStoragePoolDefFree (defined like this) void virStoragePoolDefFree(virStoragePoolDefPtr def) { if (!def) return; VIR_FREE(def->name); virStoragePoolSourceFree(&def->source); That function must *not* call VIR_FREE on &def->source, because as valgrind tells us, above, that is in the middle of a virStoragePoolDef buffer. Thus, the naive patch seems to be the way to go, unless you want to change the struct members to be pointers (and adjust all uses -- much more invasive). There are other leaks associated with similar uses of virStoragePoolSourceFree just like this one. Here's a patch that fixes them all at once. If you agree in principle, I'll write a longer commit log than the one below: [note that there's no need to guard uses of virStoragePoolSourceFree against NULL args, so I removed those. ] >From a53efcee7ec74948a2cf4c1c02902419856b0154 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Fri, 5 Feb 2010 17:09:43 +0100 Subject: [PATCH] plug four virStoragePoolSourceFree-related leaks * src/conf/storage_conf.c (virStoragePoolDefParseSourceString): * src/storage/storage_backend_fs.c: (virStorageBackendFileSystemNetFindPoolSourcesFunc): (virStorageBackendFileSystemNetFindPoolSources): * src/test/test_driver.c (testStorageFindPoolSources): --- src/conf/storage_conf.c | 4 ++-- src/storage/storage_backend_fs.c | 8 ++++---- src/test/test_driver.c | 3 ++- 3 files changed, 8 insertions(+), 7 deletions(-) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 62b8394..b98b8e9 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -524,8 +524,8 @@ virStoragePoolDefParseSourceString(virConnectPtr conn, ret = def; def = NULL; cleanup: - if (def) - virStoragePoolSourceFree(def); + virStoragePoolSourceFree(def); + VIR_FREE(def); xmlFreeDoc(doc); xmlXPathFreeContext(xpath_ctxt); diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c index 0d1c7a7..70e91a0 100644 --- a/src/storage/storage_backend_fs.c +++ b/src/storage/storage_backend_fs.c @@ -174,8 +174,8 @@ virStorageBackendFileSystemNetFindPoolSourcesFunc(virConnectPtr conn, src = NULL; ret = 0; cleanup: - if (src) - virStoragePoolSourceFree(src); + virStoragePoolSourceFree(src); + VIR_FREE(src); return ret; } @@ -236,8 +236,8 @@ virStorageBackendFileSystemNetFindPoolSources(virConnectPtr conn, for (i = 0; i < state.list.nsources; i++) virStoragePoolSourceFree(&state.list.sources[i]); - if (source) - virStoragePoolSourceFree(source); + virStoragePoolSourceFree(source); + VIR_FREE(source); VIR_FREE(state.list.sources); diff --git a/src/test/test_driver.c b/src/test/test_driver.c index 2122a1b..8e5ecf2 100644 --- a/src/test/test_driver.c +++ b/src/test/test_driver.c @@ -1,7 +1,7 @@ /* * test.c: A "mock" hypervisor for use by application unit tests * - * Copyright (C) 2006-2009 Red Hat, Inc. + * Copyright (C) 2006-2010 Red Hat, Inc. * Copyright (C) 2006 Daniel P. Berrange * * This library is free software; you can redistribute it and/or @@ -3763,6 +3763,7 @@ testStorageFindPoolSources(virConnectPtr conn, cleanup: virStoragePoolSourceFree(source); + VIR_FREE(source); return ret; } -- 1.7.0.rc1.204.gb96e

2 2

[libvirt] [PATCH 1/5] macvtap support for libvirt -- build support
by Stefan Berger 11 Feb '10

11 Feb '10

This patch adds build support for libvirt checking for certain contents of /usr/include/linux/if_link.h to see whether macvtap support is compilable on that system. One can disable macvtap support in libvirt via --without-macvtap passed to configure. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>

3 2

[libvirt] Node devices?
by Ed Swierk 11 Feb '10

11 Feb '10

After staring at the code implementing node devices in libvirt, I have decided that they're really neat, but I have no idea what they are for or how to use them. Reading the API docs and searching libvir-list didn't help much, and the user documentation (http://libvirt.org/archnode.html and http://libvirt.org/formatnode.html) is a bit, err, high-level. Can someone enlighten me? --Ed

5 5

[libvirt] [PATCH] Fix disk stats retrieval with QEMU >= 0.12
by Daniel P. Berrange 11 Feb '10

11 Feb '10

With QEMU >= 0.12 the host and guest side of disks no longer have the same naming convention. Specifically the host side will now get a 'drive-' prefix added to its name. The 'info blockstats' monitor command returns the host side name, so it is neccessary to strip this off when looking up stats since libvirt stores the guest side name ! * src/qemu/qemu_conf.c, src/qemu/qemu_conf.h: Move 'drive-' prefix string to a defined constant * src/qemu/qemu_monitor_json.c, src/qemu/qemu_monitor_text.c: Strip off 'drive-' prefix (if found) when looking up disk stats --- src/qemu/qemu_conf.c | 4 ++-- src/qemu/qemu_conf.h | 2 ++ src/qemu/qemu_monitor_json.c | 7 +++++++ src/qemu/qemu_monitor_text.c | 7 +++++++ 4 files changed, 18 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 3988582..c1d03cd 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -2301,7 +2301,7 @@ qemuBuildDriveStr(virDomainDiskDefPtr disk, virBufferAddLit(&opt, ",media=cdrom"); if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) { - virBufferVSprintf(&opt, ",id=drive-%s", disk->info.alias); + virBufferVSprintf(&opt, ",id=%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias); } else { if (busid == -1 && unitid == -1) { if (idx != -1) @@ -2390,7 +2390,7 @@ qemuBuildDriveDevStr(virDomainDiskDefPtr disk) _("unsupported disk bus '%s' with device setup"), bus); goto error; } - virBufferVSprintf(&opt, ",drive=drive-%s", disk->info.alias); + virBufferVSprintf(&opt, ",drive=%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias); virBufferVSprintf(&opt, ",id=%s", disk->info.alias); if (virBufferError(&opt)) { diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h index d26bb90..498f1d1 100644 --- a/src/qemu/qemu_conf.h +++ b/src/qemu/qemu_conf.h @@ -157,6 +157,8 @@ typedef qemuDomainPCIAddressSet *qemuDomainPCIAddressSetPtr; /* Config type for XML import/export conversions */ #define QEMU_CONFIG_FORMAT_ARGV "qemu-argv" +#define QEMU_DRIVE_HOST_PREFIX "drive-" + #define qemuReportError(code, fmt...) \ virReportErrorHelper(NULL, VIR_FROM_QEMU, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index e5288ce..032afef 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -754,6 +754,13 @@ int qemuMonitorJSONGetBlockStatsInfo(qemuMonitorPtr mon, goto cleanup; } + /* New QEMU has separate names for host & guest side of the disk + * and libvirt gives the host side a 'drive-' prefix. The passed + * in devname is the guest side though + */ + if (STRPREFIX(thisdev, QEMU_DRIVE_HOST_PREFIX)) + thisdev += strlen(QEMU_DRIVE_HOST_PREFIX); + if (STRNEQ(thisdev, devname)) continue; diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index 23fc4cf..a6a4598 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -649,6 +649,13 @@ int qemuMonitorTextGetBlockStatsInfo(qemuMonitorPtr mon, p = info; while (*p) { + /* New QEMU has separate names for host & guest side of the disk + * and libvirt gives the host side a 'drive-' prefix. The passed + * in devname is the guest side though + */ + if (STRPREFIX(p, QEMU_DRIVE_HOST_PREFIX)) + p += strlen(QEMU_DRIVE_HOST_PREFIX); + if (STREQLEN (p, devname, devnamelen) && p[devnamelen] == ':' && p[devnamelen+1] == ' ') { -- 1.6.5.2

3 2

[libvirt] domblkstat not working for qemu-kvm > 0.11
by Thomas Treutner 11 Feb '10

11 Feb '10

Hi, with all qemu-kvm > 0.11, virsh domblkstat is not working: virsh -c qemu://node03/system domblkstat wp01 vdb : invalid argument in no stats found for device virtio-disk1 (vda, vdb etc. works with 0.11) "virtio-disk1" seems to be a red herring: virsh -c qemu://node03/system domblkstat wp01 virtio-disk1 : invalid argument in invalid path: virtio-disk1 Most probably there have been made some changes with 0.12 libvirt does not resemble yet. If you need more debugging output, just tell. kr,t

2 2

[libvirt] [PATCH] qemu: Properly report a startup timeout error
by Cole Robinson 11 Feb '10

11 Feb '10

The timeout errors were unconditionally being overwritten by the less helpful 'unable to start guest' error. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/qemu/qemu_driver.c | 17 +++++++---------- 1 files changed, 7 insertions(+), 10 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 4374291..2172c99 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1358,15 +1358,15 @@ qemudReadLogOutput(virConnectPtr conn, buf[got] = '\0'; if (got == buflen-1) { qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, - _("Out of space while reading %s log output"), - what); + _("Out of space while reading %s log output: %s"), + what, buf); return -1; } if (isdead) { qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, - _("Process exited while reading %s log output"), - what); + _("Process exited while reading %s log output: %s"), + what, buf); return -1; } @@ -1378,7 +1378,8 @@ qemudReadLogOutput(virConnectPtr conn, } qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, - _("Timed out while reading %s log output"), what); + _("Timed out while reading %s log output: %s"), + what, buf); return -1; } @@ -1557,12 +1558,8 @@ qemudWaitForMonitor(virConnectPtr conn, virStrerror(errno, ebuf, sizeof ebuf)); } - if (ret < 0) { - /* Unexpected end of file - inform user of QEMU log data */ - qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, - _("unable to start guest: %s"), buf); + if (ret < 0) return -1; - } VIR_DEBUG("Connect monitor to %p '%s'", vm, vm->def->name); if (qemuConnectMonitor(vm) < 0) -- 1.6.5.2

3 6

[libvirt] [PATCH] test: Fake security driver support in capabilities
by Cole Robinson 11 Feb '10

11 Feb '10

Having some value in capabilities helps testing this stuff in virt-manager. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/test/test_driver.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/src/test/test_driver.c b/src/test/test_driver.c index 411c5cd..3f95a22 100644 --- a/src/test/test_driver.c +++ b/src/test/test_driver.c @@ -205,6 +205,14 @@ testBuildCapabilities(virConnectPtr conn) { caps->privateDataAllocFunc = testDomainObjPrivateAlloc; caps->privateDataFreeFunc = testDomainObjPrivateFree; + caps->host.secModel.model = strdup("testSecurity"); + if (!caps->host.secModel.model) + goto no_memory; + + caps->host.secModel.doi = strdup(""); + if (!caps->host.secModel.doi) + goto no_memory; + return caps; no_memory: -- 1.6.5.2

2 2

[libvirt] [PATCH] (absolutePathFromBaseFile): fix up preceding commit
by Jim Meyering 11 Feb '10

11 Feb '10

To my chagrin, I saw that my most recent commit introduced compilation errors. Sorry about that. Here's how I propose to fix it. >From 2d948a373ecebec6c06274f61b31d1ae9c40ae41 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Fri, 5 Feb 2010 14:57:35 +0100 Subject: [PATCH] (absolutePathFromBaseFile): fix up preceding commit * src/util/storage_file.c: Include <assert.h>. (absolutePathFromBaseFile): Assert that converting size_t to int is valid. Reverse length/string args to match "%.*s". Explicitly ignore the return value of virAsprintf. --- src/util/storage_file.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/src/util/storage_file.c b/src/util/storage_file.c index 2c79fa9..135acec 100644 --- a/src/util/storage_file.c +++ b/src/util/storage_file.c @@ -26,7 +26,9 @@ #include <unistd.h> #include <fcntl.h> +#include <assert.h> #include "dirname.h" +#include "ignore-value.h" #include "memory.h" #include "virterror_internal.h" @@ -255,7 +257,10 @@ absolutePathFromBaseFile(const char *base_file, const char *path) if (*path == '/' || d_len == 0) return strdup(path); - virAsprintf(&res, "%.*s/%s", base_file, d_len, path); + /* Ensure that the following cast-to-int is valid. */ + assert (d_len <= INT_MAX); + + ignore_value(virAsprintf(&res, "%.*s/%s", (int) d_len, base_file, path)); return res; } -- 1.7.0.rc1.204.gb96e

3 4

[libvirt] [PATCH 0/8] Remove virConnectPtr from yet more places
by Daniel P. Berrange 11 Feb '10

11 Feb '10

Following on from previous two postings http://www.redhat.com/archives/libvir-list/2010-February/msg00198.html http://www.redhat.com/archives/libvir-list/2010-February/msg00279.html With this series, none of the shared driver code uses virConnectPtr anymore, with the exception of src/conf/domain_events.h which has a genuine need for it - events are dispatched back to a specifici connection handle.

2 17

[libvirt] [PATCH 0/4] Remove use of virConnectPtr from more internal APIs
by Daniel P. Berrange 10 Feb '10

10 Feb '10

Following on from Matthias' work http://www.redhat.com/archives/libvir-list/2010-February/msg00198.html This series kills the virConnectPtr from QEMU, and LXC drivers, the security driver support code and the domain XML handling code.

3 11

[libvirt] [PATCH] Convert qemu command line flags to 64-bit int
by Daniel P. Berrange 10 Feb '10

10 Feb '10

The QEMU flags are commonly stored as a signed or unsigned int, allowing only 31 flags. This limit is rather close, so to aid future patches, change it to a 64-bit int * src/qemu/qemu_conf.c, src/qemu/qemu_conf.h, src/qemu/qemu_driver.c, tests/qemuargv2xmltest.c, tests/qemuhelptest.c, tests/qemuxml2argvtest.c: Use 'unsigned long long' for QEMU flags --- src/qemu/qemu_conf.c | 28 ++++++++++++++-------------- src/qemu/qemu_conf.h | 14 +++++++------- src/qemu/qemu_driver.c | 12 ++++++------ tests/qemuargv2xmltest.c | 2 +- tests/qemuhelptest.c | 13 +++++++------ tests/qemuxml2argvtest.c | 7 ++++--- 6 files changed, 39 insertions(+), 37 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 257b4a4..e3769c8 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1108,12 +1108,12 @@ virCapsPtr qemudCapsInit(virCapsPtr old_caps) { return NULL; } -static unsigned int qemudComputeCmdFlags(const char *help, - unsigned int version, - unsigned int is_kvm, - unsigned int kvm_version) +static unsigned long long qemudComputeCmdFlags(const char *help, + unsigned int version, + unsigned int is_kvm, + unsigned int kvm_version) { - unsigned int flags = 0; + unsigned long long flags = 0; if (strstr(help, "-no-kqemu")) flags |= QEMUD_CMD_FLAG_KQEMU; @@ -1236,7 +1236,7 @@ static unsigned int qemudComputeCmdFlags(const char *help, #define SKIP_BLANKS(p) do { while ((*(p) == ' ') || (*(p) == '\t')) (p)++; } while (0) int qemudParseHelpStr(const char *help, - unsigned int *flags, + unsigned long long *flags, unsigned int *version, unsigned int *is_kvm, unsigned int *kvm_version) @@ -1316,14 +1316,14 @@ fail: int qemudExtractVersionInfo(const char *qemu, unsigned int *retversion, - unsigned int *retflags) { + unsigned long long *retflags) { const char *const qemuarg[] = { qemu, "-help", NULL }; const char *const qemuenv[] = { "LC_ALL=C", NULL }; pid_t child; int newstdout = -1; int ret = -1, status; unsigned int version, is_kvm, kvm_version; - unsigned int flags = 0; + unsigned long long flags = 0; if (retflags) *retflags = 0; @@ -1425,7 +1425,7 @@ int qemudNetworkIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - int qemuCmdFlags) + unsigned long long qemuCmdFlags) { char *brname = NULL; int err; @@ -1637,7 +1637,7 @@ no_memory: int -qemuAssignDeviceDiskAlias(virDomainDiskDefPtr def, int qemuCmdFlags) +qemuAssignDeviceDiskAlias(virDomainDiskDefPtr def, unsigned long long qemuCmdFlags) { if (qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE) { if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) @@ -1720,7 +1720,7 @@ qemuAssignDeviceControllerAlias(virDomainControllerDefPtr controller) static int -qemuAssignDeviceAliases(virDomainDefPtr def, int qemuCmdFlags) +qemuAssignDeviceAliases(virDomainDefPtr def, unsigned long long qemuCmdFlags) { int i; @@ -2189,7 +2189,7 @@ qemuSafeSerialParamValue(virConnectPtr conn, char * qemuBuildDriveStr(virDomainDiskDefPtr disk, int bootable, - int qemuCmdFlags) + unsigned long long qemuCmdFlags) { virBuffer opt = VIR_BUFFER_INITIALIZER; const char *bus = virDomainDiskQEMUBusTypeToString(disk->bus); @@ -3017,7 +3017,7 @@ no_memory: static char * qemuBuildSmpArgStr(const virDomainDefPtr def, - int qemuCmdFlags) + unsigned long long qemuCmdFlags) { virBuffer buf = VIR_BUFFER_INITIALIZER; @@ -3057,7 +3057,7 @@ int qemudBuildCommandLine(virConnectPtr conn, virDomainDefPtr def, virDomainChrDefPtr monitor_chr, int monitor_json, - unsigned int qemuCmdFlags, + unsigned long long qemuCmdFlags, const char ***retargv, const char ***retenv, int **tapfds, diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h index 5525b6c..f6397b7 100644 --- a/src/qemu/qemu_conf.h +++ b/src/qemu/qemu_conf.h @@ -170,10 +170,10 @@ virCapsPtr qemudCapsInit (virCapsPtr old_caps); int qemudExtractVersion (struct qemud_driver *driver); int qemudExtractVersionInfo (const char *qemu, unsigned int *version, - unsigned int *flags); + unsigned long long *qemuCmdFlags); int qemudParseHelpStr (const char *str, - unsigned int *flags, + unsigned long long *qemuCmdFlags, unsigned int *version, unsigned int *is_kvm, unsigned int *kvm_version); @@ -183,7 +183,7 @@ int qemudBuildCommandLine (virConnectPtr conn, virDomainDefPtr def, virDomainChrDefPtr monitor_chr, int monitor_json, - unsigned int qemuCmdFlags, + unsigned long long qemuCmdFlags, const char ***retargv, const char ***retenv, int **tapfds, @@ -205,12 +205,12 @@ char * qemuBuildNicStr(virConnectPtr conn, /* Current, best practice */ char * qemuBuildNicDevStr(virDomainNetDefPtr net, - int qemuCmdFlags); + int vlan); /* Both legacy & current support */ char *qemuBuildDriveStr(virDomainDiskDefPtr disk, int bootable, - int qemuCmdFlags); + unsigned long long qemuCmdFlags); /* Current, best practice */ char * qemuBuildDriveDevStr(virConnectPtr conn, @@ -244,7 +244,7 @@ char * qemuBuildUSBHostdevDevStr(virDomainHostdevDefPtr dev); int qemudNetworkIfaceConnect (virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - int qemuCmdFlags); + unsigned long long qemuCmdFlags); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, @@ -283,7 +283,7 @@ int qemuAssignDevicePCISlots(virDomainDefPtr def, qemuDomainPCIAddressSetPtr ad int qemuDomainNetVLAN(virDomainNetDefPtr def); int qemuAssignDeviceNetAlias(virDomainDefPtr def, virDomainNetDefPtr net, int idx); -int qemuAssignDeviceDiskAlias(virDomainDiskDefPtr def, int qemuCmdFlags); +int qemuAssignDeviceDiskAlias(virDomainDiskDefPtr def, unsigned long long qemuCmdFlags); int qemuAssignDeviceHostdevAlias(virDomainDefPtr def, virDomainHostdevDefPtr net, int idx); int qemuAssignDeviceControllerAlias(virDomainControllerDefPtr controller); diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 4374291..54d33cd 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -2520,7 +2520,7 @@ static int qemudStartVMDaemon(virConnectPtr conn, struct stat sb; int *tapfds = NULL; int ntapfds = 0; - unsigned int qemuCmdFlags; + unsigned long long qemuCmdFlags; fd_set keepfd; const char *emulator; pid_t child; @@ -4707,7 +4707,7 @@ static char *qemuDomainXMLToNative(virConnectPtr conn, virDomainDefPtr def = NULL; virDomainChrDef monConfig; const char *emulator; - unsigned int qemuCmdFlags; + unsigned long long qemuCmdFlags; struct stat sb; const char **retargv = NULL; const char **retenv = NULL; @@ -5586,7 +5586,7 @@ static int qemudDomainAttachNetDevice(virConnectPtr conn, struct qemud_driver *driver, virDomainObjPtr vm, virDomainNetDefPtr net, - unsigned int qemuCmdFlags) + unsigned long long qemuCmdFlags) { qemuDomainObjPrivatePtr priv = vm->privateData; char *tapfd_name = NULL; @@ -5901,7 +5901,7 @@ static int qemudDomainAttachDevice(virDomainPtr dom, struct qemud_driver *driver = dom->conn->privateData; virDomainObjPtr vm; virDomainDeviceDefPtr dev = NULL; - unsigned int qemuCmdFlags; + unsigned long long qemuCmdFlags; virCgroupPtr cgroup = NULL; int ret = -1; @@ -7437,7 +7437,7 @@ qemudDomainMigratePrepareTunnel(virConnectPtr dconn, int ret = -1; int internalret; char *unixfile = NULL; - unsigned int qemuCmdFlags; + unsigned long long qemuCmdFlags; struct qemuStreamMigFile *qemust = NULL; qemuDriverLock(driver); @@ -7884,7 +7884,7 @@ static int doTunnelMigrate(virDomainPtr dom, virStreamPtr st = NULL; char *unixfile = NULL; int internalret; - unsigned int qemuCmdFlags; + unsigned long long qemuCmdFlags; int status; unsigned long long transferred, remaining, total; diff --git a/tests/qemuargv2xmltest.c b/tests/qemuargv2xmltest.c index 1f1914b..c125a34 100644 --- a/tests/qemuargv2xmltest.c +++ b/tests/qemuargv2xmltest.c @@ -75,7 +75,7 @@ static int testCompareXMLToArgvFiles(const char *xml, struct testInfo { const char *name; - int extraFlags; + unsigned long long extraFlags; const char *migrateFrom; }; diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index 34a6048..0f2b509 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -12,10 +12,10 @@ struct testInfo { const char *name; - unsigned flags; - unsigned version; - unsigned is_kvm; - unsigned kvm_version; + unsigned long long flags; + unsigned int version; + unsigned int is_kvm; + unsigned int kvm_version; }; static char *progname; @@ -41,7 +41,8 @@ static int testHelpStrParsing(const void *data) char path[PATH_MAX]; char helpStr[MAX_HELP_OUTPUT_SIZE]; char *help = &(helpStr[0]); - unsigned flags, version, is_kvm, kvm_version; + unsigned int version, is_kvm, kvm_version; + unsigned long long flags; snprintf(path, PATH_MAX, "%s/qemuhelpdata/%s", abs_srcdir, info->name); @@ -52,7 +53,7 @@ static int testHelpStrParsing(const void *data) return -1; if (flags != info->flags) { - fprintf(stderr, "Computed flags do not match: got 0x%x, expected 0x%x\n", + fprintf(stderr, "Computed flags do not match: got 0x%llx, expected 0x%llx\n", flags, info->flags); if (getenv("VIR_TEST_DEBUG")) diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 67dc47e..f4908b8 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -24,7 +24,7 @@ static struct qemud_driver driver; static int testCompareXMLToArgvFiles(const char *xml, const char *cmd, - int extraFlags, + unsigned long long extraFlags, const char *migrateFrom) { char argvData[MAX_FILE]; char *expectargv = &(argvData[0]); @@ -32,7 +32,8 @@ static int testCompareXMLToArgvFiles(const char *xml, const char **argv = NULL; const char **qenv = NULL; const char **tmp = NULL; - int ret = -1, len, flags; + int ret = -1, len; + unsigned long long flags; virDomainDefPtr vmdef = NULL; virDomainChrDef monitor_chr; @@ -142,7 +143,7 @@ static int testCompareXMLToArgvFiles(const char *xml, struct testInfo { const char *name; - int extraFlags; + unsigned long long extraFlags; const char *migrateFrom; }; -- 1.6.6

3 6

[libvirt] [PATCH] Fix security driver configuration
by Daniel P. Berrange 10 Feb '10

10 Feb '10

The security driver was mistakenly initialized before the QEMU config file was loaded. This prevents it being turned off again. The capabilities XML was also getting the wrong security driver name, due to the stacked driver arrangement. * src/qemu/qemu_driver.c: Fix initialization order and capabilities model name --- src/qemu/qemu_driver.c | 20 ++++++++++---------- 1 files changed, 10 insertions(+), 10 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 54d33cd..cac5b8a 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -933,7 +933,7 @@ qemudSecurityInit(struct qemud_driver *qemud_drv) static virCapsPtr qemuCreateCapabilities(virCapsPtr oldcaps, - virSecurityDriverPtr secDriver) + struct qemud_driver *driver) { virCapsPtr caps; @@ -951,11 +951,11 @@ qemuCreateCapabilities(virCapsPtr oldcaps, /* Security driver data */ - if (secDriver) { + if (driver->securityPrimaryDriver) { const char *doi, *model; - doi = virSecurityDriverGetDOI(secDriver); - model = virSecurityDriverGetModel(secDriver); + doi = virSecurityDriverGetDOI(driver->securityPrimaryDriver); + model = virSecurityDriverGetModel(driver->securityPrimaryDriver); if (!(caps->host.secModel.model = strdup(model))) goto no_memory; @@ -1098,20 +1098,20 @@ qemudStartup(int privileged) { virStrerror(-rc, buf, sizeof(buf))); } + if (qemudLoadDriverConfig(qemu_driver, driverConf) < 0) { + goto error; + } + if (qemudSecurityInit(qemu_driver) < 0) goto error; if ((qemu_driver->caps = qemuCreateCapabilities(NULL, - qemu_driver->securityDriver)) == NULL) + qemu_driver)) == NULL) goto error; if ((qemu_driver->activePciHostdevs = pciDeviceListNew()) == NULL) goto error; - if (qemudLoadDriverConfig(qemu_driver, driverConf) < 0) { - goto error; - } - if (privileged) { if (chown(qemu_driver->libDir, qemu_driver->user, qemu_driver->group) < 0) { virReportSystemError(errno, @@ -3065,7 +3065,7 @@ static char *qemudGetCapabilities(virConnectPtr conn) { qemuDriverLock(driver); if ((caps = qemuCreateCapabilities(qemu_driver->caps, - qemu_driver->securityDriver)) == NULL) { + qemu_driver)) == NULL) { virCapabilitiesFree(caps); goto cleanup; } -- 1.6.6

2 1

[libvirt] PATCH: Depend on libcgroup & turn on cgconfig initscript
by Daniel P. Berrange 10 Feb '10

10 Feb '10

Since libvirt uses cgroups for various aspects of guest tuning, we need to make sure that the host is configured with them enabled out of the box. The libcgroup maintainer has now provided a suitable default config that mounts them all in /cgroup. So libvirt simply needs to depend on libcgroup RPM, and turn on the 'cgconfig' initscript at install time if QEMU or LXC is enabled. diff -u -r1.81 libvirt.spec --- libvirt.spec 3 Feb 2010 17:54:54 -0000 1.81 +++ libvirt.spec 9 Feb 2010 12:49:25 -0000 @@ -61,6 +61,7 @@ %define with_udev 0%{!?_without_udev:0} %define with_hal 0%{!?_without_hal:0} %define with_yajl 0%{!?_without_yajl:0} +%define with_cgconfig 0%{!?_without_cgconfig:0} # Non-server/HV driver defaults which are always enabled %define with_python 0%{!?_without_python:1} @@ -147,6 +148,13 @@ %define with_yajl 0%{!?_without_yajl:%{server_drivers}} %endif +# Pull in cgroups config system +%if 0%{?fedora} >= 12 || 0%{?rhel} >= 6 +%if %{with_qemu} || %{with_lxc} +%define with_cgconfig 0%{!?_without_cgconfig:1} +%endif +%endif + # Force QEMU to run as non-root %if 0%{?fedora} >= 12 || 0%{?rhel} >= 6 %define qemu_user qemu @@ -244,6 +252,9 @@ # For multipath support Requires: device-mapper %endif +%if %{with_cgconfig} +Requires: libcgroup +%endif %if %{with_xen} BuildRequires: xen-devel %endif @@ -634,6 +645,12 @@ fi %endif +%if %{with_cgconfig} +if [ "$1" = "1" ]; then +/sbin/chkconfig cgconfig on +fi +%endif + /sbin/chkconfig --add libvirtd if [ "$1" -ge "1" ]; then /sbin/service libvirtd condrestart > /dev/null 2>&1 -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 1

[libvirt] [PATCH] escape strings serialized in XML
by Daniel Veillard 10 Feb '10

10 Feb '10

A large part of the serialization code in src/conf/node_device_conf.c forgot that rule, this led to https://bugzilla.redhat.com/show_bug.cgi?id=547045 Escape strings serialized in XML * src/conf/node_device_conf.c: string saved into XML should be escaped with the use of virBufferEscapeString() diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 4e8a492..69f42a9 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -372,19 +372,21 @@ char *virNodeDeviceDefFormat(virConnectPtr conn, virBufferVSprintf(&buf, " <protocol>%d</protocol>\n", data->usb_if.protocol); if (data->usb_if.description) - virBufferVSprintf(&buf, " <description>%s</description>\n", + virBufferEscapeString(&buf, + " <description>%s</description>\n", data->usb_if.description); break; case VIR_NODE_DEV_CAP_NET: - virBufferVSprintf(&buf, " <interface>%s</interface>\n", + virBufferEscapeString(&buf, " <interface>%s</interface>\n", data->net.ifname); if (data->net.address) - virBufferVSprintf(&buf, " <address>%s</address>\n", + virBufferEscapeString(&buf, " <address>%s</address>\n", data->net.address); if (data->net.subtype != VIR_NODE_DEV_CAP_NET_LAST) { const char *subtyp = virNodeDevNetCapTypeToString(data->net.subtype); - virBufferVSprintf(&buf, " <capability type='%s'/>\n", subtyp); + virBufferEscapeString(&buf, " <capability type='%s'/>\n", + subtyp); } break; case VIR_NODE_DEV_CAP_SCSI_HOST: @@ -392,10 +394,10 @@ char *virNodeDeviceDefFormat(virConnectPtr conn, data->scsi_host.host); if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) { virBufferAddLit(&buf, " <capability type='fc_host'>\n"); - virBufferVSprintf(&buf, - " <wwnn>%s</wwnn>\n", data->scsi_host.wwnn); - virBufferVSprintf(&buf, - " <wwpn>%s</wwpn>\n", data->scsi_host.wwpn); + virBufferEscapeString(&buf, " <wwnn>%s</wwnn>\n", + data->scsi_host.wwnn); + virBufferEscapeString(&buf, " <wwpn>%s</wwpn>\n", + data->scsi_host.wwpn); virBufferAddLit(&buf, " </capability>\n"); } if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS) { @@ -405,8 +407,8 @@ char *virNodeDeviceDefFormat(virConnectPtr conn, break; case VIR_NODE_DEV_CAP_SCSI_TARGET: - virBufferVSprintf(&buf, " <target>%s</target>\n", - data->scsi_target.name); + virBufferEscapeString(&buf, " <target>%s</target>\n", + data->scsi_target.name); break; case VIR_NODE_DEV_CAP_SCSI: @@ -416,23 +418,23 @@ char *virNodeDeviceDefFormat(virConnectPtr conn, data->scsi.target); virBufferVSprintf(&buf, " <lun>%d</lun>\n", data->scsi.lun); if (data->scsi.type) - virBufferVSprintf(&buf, " <type>%s</type>\n", - data->scsi.type); + virBufferEscapeString(&buf, " <type>%s</type>\n", + data->scsi.type); break; case VIR_NODE_DEV_CAP_STORAGE: - virBufferVSprintf(&buf, " <block>%s</block>\n", + virBufferEscapeString(&buf, " <block>%s</block>\n", data->storage.block); if (data->storage.bus) - virBufferVSprintf(&buf, " <bus>%s</bus>\n", + virBufferEscapeString(&buf, " <bus>%s</bus>\n", data->storage.bus); if (data->storage.drive_type) - virBufferVSprintf(&buf, " <drive_type>%s</drive_type>\n", + virBufferEscapeString(&buf, " <drive_type>%s</drive_type>\n", data->storage.drive_type); if (data->storage.model) - virBufferVSprintf(&buf, " <model>%s</model>\n", + virBufferEscapeString(&buf, " <model>%s</model>\n", data->storage.model); if (data->storage.vendor) - virBufferVSprintf(&buf, " <vendor>%s</vendor>\n", + virBufferEscapeString(&buf, " <vendor>%s</vendor>\n", data->storage.vendor); if (data->storage.serial) virBufferVSprintf(&buf, " <serial>%s</serial>\n", -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

2 2

[libvirt] [0/3] Rebased patches for SPICE graphics support
by Daniel Veillard 10 Feb '10

10 Feb '10

This is a rebase of the 4 RHEL specific patches posted last sptember by Dan Berrange (but with patch 3 and 4 merged). It's actually a rebase from the gitorious spice set from Dan http://www.redhat.com/archives/libvir-list/2009-September/msg00865.html -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

2 7

[libvirt] [PATCH] fix AppArmor security driver when libvirt is compiled with libcap-ng
by Jamie Strandboge 10 Feb '10

10 Feb '10

The calls to virExec() in security_apparmor.c when invoking virt-aa-helper use VIR_EXEC_CLEAR_CAPS. When compiled without libcap-ng, this is not a problem (it's effectively a no-op) but with libcap-ng this causes MAC_ADMIN to be cleared. MAC_ADMIN is needed by virt-aa-helper to manipulate apparmor profiles and without it VMs will not start[1]. This patch calls virExec with the default VIR_EXEC_NONE instead. [1] https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/517714 -- Jamie Strandboge | http://www.canonical.com

2 1

[libvirt] [PATCH 0/9] virDomain{Attach,Detach}DeviceFlags patches
by Jim Fehlig 10 Feb '10

10 Feb '10

This set implements two new APIs, virDomainAttachDeviceFlags and virDomainDetachDeviceFlags as discussed here https://www.redhat.com/archives/libvir-list/2009-December/msg00124.html Introduce two new APIs virDomainAttachDeviceFlags(virDomainPtr dom, const char *xml, unsigned flags) virDomainDetachDeviceFlags(virDomainPtr dom, const char *xml, unsigned flags) with flags being one or more from VIR_DOMAIN_DEVICE_MODIFY_CURRENT, VIR_DOMAIN_DEVICE_MODIFY_LIVE, VIR_DOMAIN_DEVICE_MODIFY_CONFIG. If caller specifies CURRENT (default), add or remove the device depending on the current state of domain. E.g. if domain is active add or remove the device to/from live domain, if it is inactive change the persistent config. If caller specifies LIVE, only change the active domain. If caller specifies CONFIG, only change persistent config - even if the domain is active. If caller specifies both LIVE and CONFIG, then change both. If a driver can not satisfy the exact requested flags it must return an error. E.g if user specified LIVE but the driver can only change live and persisted config, the driver must fail the request. The existing virDomain{Attach,Detach}Device is now explicitly restricted to active domains and is equivalent to virDomain{Attach,Detach}DeviceFlags(LIVE). Finally, virsh {attach,detach}-{disk,interface,device} has been modified to add a --persistent flag in order to set the appropriate flags when calling the new APIs. Jim Fehlig (9): Restrict virDomain{Attach,Detach}Device to active domains Public API Internal API Public API Implementation Wire protocol format Remote driver Server side dispatcher domain{Attach,Detach}DeviceFlags handler for drivers Modify virsh commands daemon/remote.c | 53 ++++++++++++++++++ include/libvirt/libvirt.h.in | 13 +++++ src/driver.h | 10 ++++ src/esx/esx_driver.c | 2 + src/libvirt.c | 120 ++++++++++++++++++++++++++++++++++++++---- src/libvirt_public.syms | 6 ++ src/lxc/lxc_driver.c | 2 + src/opennebula/one_driver.c | 2 + src/openvz/openvz_driver.c | 2 + src/phyp/phyp_driver.c | 2 + src/qemu/qemu_driver.c | 26 +++++++++ src/remote/remote_driver.c | 54 +++++++++++++++++++ src/remote/remote_protocol.x | 17 ++++++- src/test/test_driver.c | 2 + src/uml/uml_driver.c | 2 + src/vbox/vbox_tmpl.c | 24 ++++++++ src/xen/proxy_internal.c | 4 +- src/xen/xen_driver.c | 42 +++++++++++++-- src/xen/xen_driver.h | 4 +- src/xen/xen_hypervisor.c | 4 +- src/xen/xen_inotify.c | 4 +- src/xen/xend_internal.c | 98 ++++++++++++++++++++++++++++------ src/xen/xm_internal.c | 30 +++++++---- src/xen/xs_internal.c | 4 +- tools/virsh.c | 55 +++++++++++++++++-- 25 files changed, 523 insertions(+), 59 deletions(-)

3 33

[libvirt] [PATCH] Create raw storage files with O_DSYNC
by Jiri Denemark 10 Feb '10

10 Feb '10

When creating preallocated large raw files opening them with O_DSYNC prevents long delays in reading because cache pages can be immediately reused without writing them on a disk first. Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/storage/storage_backend.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index e79294a..8aab9ab 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -301,7 +301,7 @@ virStorageBackendCreateRaw(virConnectPtr conn, goto cleanup; } - if ((fd = open(vol->target.path, O_RDWR | O_EXCL)) < 0) { + if ((fd = open(vol->target.path, O_RDWR | O_EXCL | O_DSYNC)) < 0) { virReportSystemError(conn, errno, _("cannot open new path '%s'"), vol->target.path); -- 1.6.6.1

2 2

[libvirt] ANNOUNCE: New releases virt-manager 0.8.3 and virtinst 0.500.2
by Cole Robinson 10 Feb '10

10 Feb '10

I'm happy to announce two new releases: virt-manager 0.8.3: virt-manager is a desktop application for managing KVM and Xen virtual machines via libvirt. virtinst 0.500.2: virtinst is a collection of command line tools for provisioning libvirt virtual machines, including virt-install and virt-clone. The releases can be downloaded from: http://virt-manager.org/download.html The direct download links are: http://virt-manager.org/download/sources/virt-manager/virt-manager-0.8.3.ta… http://virt-manager.org/download/sources/virtinst/virtinst-0.500.2.tar.gz The virt-manager release includes: - New ability to manage network interfaces: start, stop, and view existing interfaces. Provision new bridge, bond, and vlan devices. - New option to 'customize VM before install', which allows adjusting most VM options from the install wizard. The virtinst release includes: - virt-install: --autostart option for setting domain autostart flag - virt-install: Allow specifying --host-device with lsusb and lspci format (0x1234:0x5678 for USB, etc) - virtinst: New 'Interface' module for building libvirt interface XML Thanks to everyone who has contributed to this release through testing, bug reporting, submitting patches, and otherwise sending in feedback! Thanks, Cole

1 0

Re: [libvirt] Live migration woes
by Lance Albertson 09 Feb '10

09 Feb '10

> On Fri, Feb 05, 2010 at 03:21:32PM -0500, Thomas Sjolshagen wrote: >>> is anyone using libvirt-git and qemu-kvm post-0.11 and can live >>> migrate VMs successfully for- and backwards? qemu-kvm-0.11 seems >>> to be the latest release were live migration works, and I'm >>> trying to figure out if its a kvm or libvirt problem, since there >>> were other things (balloon parameter f.e.) that were changed with >>> qemu-kvm-0.12 and caused troubles when using libvirt. >> >> Yes. >> >> I'm using the virt-preview repo (rawhide) and I just noticed, >> today, after re-upgrading to 0.12.2-5 (since -4 has a rather nasty >> IO problem for virtio devices against raw image files) that my >> live-migrations fail with the following error message on the >> destination system (i.e. the system the I'm trying to migrate to): > >> /var/log/libvirt/qemu/<guest>.log: Unknown savevm section >> -2038417646 load of migration failed > > This looks like a new QEMU bug to me I can confirm this bug is happening on Ganeti as well [1]. It appears that if you sync the time on the guest VM before migrating back to the other node it will "succeed" most of the time. Has anyone opened a bug for this on the qemu-kvm bug tracker yet? I was about to do that myself. Thanks- [1] http://groups.google.com/group/ganeti/browse_thread/thread/9b2c556557e749cf -- Lance Albertson lance <at> osuosl.org Systems Administrator / Architect Open Source Lab Network Services Oregon State University Work: 541-737-9975 PGP Key: 0x27F4B742 GPG Fingerprint 0423 92F3 544A 1282 5AB1 4D07 416F A15D 27F4 B742

2 1

[libvirt] Inbound NAT and iptables rules
by Karl Vogel 09 Feb '10

09 Feb '10

This issue has been brought up a few times, but I haven't found any real solution yet. The problem is with the way libvirt adds iptables rules. I have a KVM Host with 1 public IP address, on which a few virtual machines run. I want to be able to direct certain ports on the public IP to certain virtual machine's internal IP. For example: allow conneciton to 'public-ip' tcp port: 80 to 'vm1' Which is possible using following rules: $ iptables -I FORWARD 1 -d vm1 -p tcp --dport 80 -j ACCEPT $ iptables -t nat -A PREROUTING -p tcp -d public-ip --dport 80 -j DNAT --to-destination vm1 However the problem is that libvirt _always_ adds it's rules to the top of the FORWARD rules, hence it blocks any 'custom' rules to the VM machines. ie. Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 39 2964 ACCEPT all -- * virbr0 0.0.0.0/0 192.168.122.0/24 state RELATED,ESTABLISHED 39 2964 ACCEPT all -- virbr0 * 192.168.122.0/24 0.0.0.0/0 2 656 ACCEPT all -- virbr0 virbr0 0.0.0.0/0 0.0.0.0/0 2 120 REJECT all -- * virbr0 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable 0 0 REJECT all -- virbr0 * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Only established connections are allowed with the libvirt rules, hence the forwarded connection to port 80 will be rejected by the 4th libvirt rule. The only way to make it work is to insert the rule _after_ libvirt has started the network.. and if the libvirt network ever gets restarted, the rule will be disabled since libvirt inserts it's rules at the top of the chain. Is there a proper way to achieve this with libvirt ?!

1 1

[libvirt] qemu can't parse floppy cmdline
by Cole Robinson 09 Feb '10

09 Feb '10

Hi Dan, With qemu-0.12.2-5.fc13.x86_64 in fedora, libvirt is generating a cmdline which qemu-kvm can't parse. XML is: <domain type='kvm'> <name>winxp_32</name> <uuid>3485e26d-c370-c0b0-32e2-a041a12f5cfc</uuid> <memory>1048576</memory> <currentMemory>1048576</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='pc-0.11'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='localtime'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu'/> <source file='/mnt/devel/vms/disks/winxp_32.qcow2.img'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' unit='0'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu'/> <source file='/mnt/devel/media/win_2003_64.iso'/> <target dev='hdc' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='1' unit='0'/> </disk> <disk type='file' device='cdrom'> <target dev='hdb' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='0' unit='1'/> </disk> <disk type='file' device='floppy'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/1.img'/> <target dev='fda' bus='fdc'/> <address type='drive' controller='0' bus='0' unit='0'/> </disk> <controller type='ide' index='0'/> <controller type='fdc' index='0'/> <interface type='network'> <mac address='52:54:00:5d:46:22'/> <source network='default'/> <target dev='vnet0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target port='0'/> </console> <input type='tablet' bus='usb'/> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes'/> <sound model='es1370'/> <video> <model type='vga' vram='9216' heads='1'/> </video> </devices> </domain> The generated cmdline is: LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=none /usr/bin/qemu-kvm -S -M pc-0.11 -enable-kvm -m 1024 -smp 1,sockets=1,cores=1,threads=1 -name winxp_32 -uuid 3485e26d-c370-c0b0-32e2-a041a12f5cfc -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/winxp_32.monitor,server,nowait -mon chardev=monitor,mode=readline -localtime -boot c -drive file=/mnt/devel/vms/disks/winxp_32.qcow2.img,if=none,id=drive-ide0-0-0,boot=on -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive file=/mnt/devel/media/win_2003_64.iso,if=none,media=cdrom,id=drive-ide0-1-0 -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive if=none,media=cdrom,id=drive-ide0-0-1 -device ide-drive,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -drive file=/var/lib/libvirt/images/1.img,if=none,id=drive-fdc0-0-0,format=raw -global isa-fdc,driveA=drive-fdc0-0-0 -device rtl8139,vlan=0,id=net0,mac=52:54:00:5d:46:22,bus=pci.0,addr=0x4 -net tap,fd=38,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -vga std -device ES1370,id=sound0,bus=pci.0,addr=0x5 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 can't parse: "isa-fdc,driveA=drive-fdc0-0-0" If I drop the floppy dev and controller, the guest boots, but a few warnings are printed. Not sure if any of this reflects qemu bugs or libvirt bugs: LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=none /usr/bin/qemu-kvm -S -M pc-0.11 -enable-kvm -m 1024 -smp 1,sockets=1,cores=1,threads=1 -name winxp_32 -uuid 3485e26d-c370-c0b0-32e2-a041a12f5cfc -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/winxp_32.monitor,server,nowait -mon chardev=monitor,mode=readline -localtime -boot c -drive file=/mnt/devel/vms/disks/winxp_32.qcow2.img,if=none,id=drive-ide0-0-0,boot=on -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive file=/mnt/devel/media/win_2003_64.iso,if=none,media=cdrom,id=drive-ide0-1-0 -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive if=none,media=cdrom,id=drive-ide0-0-1 -device ide-drive,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -device rtl8139,vlan=0,id=net0,mac=52:54:00:5d:46:22,bus=pci.0,addr=0x4 -net tap,fd=37,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -vga std -device ES1370,id=sound0,bus=pci.0,addr=0x5 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 char device redirected to /dev/pts/2 Warning: vlan 0 with no nics Option 'ipv4': Use 'on' or 'off' Failed to parse "yes" for "dummy.ipv4" Thanks, Cole

2 1

[libvirt] [PATCH 0/9] Remove conn parameter from several functions
by Matthias Bolte 09 Feb '10

09 Feb '10

This set of patches removes the conn parameter from several internal functions where it was used of error reporting only. Since errors are reported to an error object in thread local storage the conn parameter is not necessary for this anymore. Matthias

2 11

[libvirt] [PATCH 2/5] macvtap support for libvirt -- parse new interface XML
by Stefan Berger 09 Feb '10

09 Feb '10

This part adds support to domain_conf.{c|h} for parsing the new interface XML of type 'direct'. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>

2 3

[libvirt] [PATCH 4/5] macvtap support for libvirt -- helper code
by Stefan Berger 09 Feb '10

09 Feb '10

This part adds the helper code to setup and tear down macvtap devices using direct communication with the device driver via netlink sockets. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>

2 2

[libvirt] RFC: solving problem with qemu domain save on root-squashing NFS
by Laine Stump 09 Feb '10

09 Feb '10

(I had sent this message last week as a response to a message in a patch thread, but thought today that possibly some mail readers would bury it, so I'm sending it again disconnected from any existing thread. I can send the patches I mention below to anyone interested in playing around with them, but they're not useful since they still fail at the final step...) On 01/24/2010 11:57 AM, Dan Kenigsberg wrote: > On Wed, Jan 20, 2010 at 03:14:57PM +0000, Daniel P. Berrange wrote: >> This patch series does some work on te security drivers, and the QEMU >> code >> for managing DAC permissions on files. >> >> The core goal is to turn the QEMU driver DAC file management code into a >> security driver. Instead of QEMU calling into the SELinux/AppArmour >> drivers >> directly, a stacked driver module is introduced. This delegates all >> operations >> to first the QEMU DAC driver, and then the main SELinux/AppArmour >> driver. >> The end result is that all the permissions management code is removed >> from >> the QEMU driver, and we're left with just simple security driver calls. >> >> In the process of this a number of flaws in the current hotplug code >> were >> found, and code was generally tidied up with a view to making it >> easier to >> manage. >> >> Finally, we add the ability to turn off the QEMU DAC file managment >> code, >> and also deal gracefully with failures to change ownership (eg on NFS >> with >> root squash, or readonly FS). > Thanks for this series. However, it seems that we still have a problem > when trying to save domain to a root-squashing nfs export. > When using qemu directly, as a user with write permissions to that > export, there is no problem. When using libvirt, libvirt tries to write > its own state to the target file. I would not want to pre-create the > target file as world redable. > > How about performing open(path, O_CREAT|O_TRUNC|O_WRONLY, > S_IRUSR|S_IWUSR)) with the euid of the qemu process? I came up with a patch that creates the domain state file by first forking, followed by the child process doing setuid(qemu) and all the write-to-the-file stuff that creates the file (similar to the recent virFileCreate patch). This works all the way up through qemu's appending its state onto the file. The trouble comes when qemudDomainSave calls securityDriver->domainRestoreSavedStateLabel() (in this case, qemuSecurityStackedRestoreSavedStateLabel()). That function first calls the primary security driver's qemuSecurityDACRestoreSavedStateLabel(), which will fail because it attempts to chown the file to 0,0 (to prevent other qemu instances from messing with it). That can be disabled by setting "dynamic_ownership=0" in qemu.conf (needed in several other places when stuff is stored on root-squashing NFS anyway :-/). Then the stacked security driver calls the secondary security driver's SELinuxRestoreSavedStateLabel(), which also fails because of an SELinux function (matchpathcon) returning failure. We could ignore this failure, but that would create an unnecessary security hole for all those installations that *aren't* storing their domains on root-squashing NFS. So I *think* what I'm looking for a good way to avoid the SELinux stuff when the destination file is located on a root-squashing NFS share, but not ignore it otherwise (I believe the consensus is that we *don't* want to require another configuration knob if at all possible, since that would not only lead to extra complexity of config, but also to uninformed users turning it off when not necessary). Does anyone have any good ideas for doing this (or for a different approach)? (I suppose I could always attempt the entire operation assuming not, then redo with fork/setuid if the first attempt failed, but that seems less than elegant).

1 0

[libvirt] Live migration woes
by Thomas Treutner 08 Feb '10

08 Feb '10

Hi, is anyone using libvirt-git and qemu-kvm post-0.11 and can live migrate VMs successfully for- and backwards? qemu-kvm-0.11 seems to be the latest release were live migration works, and I'm trying to figure out if its a kvm or libvirt problem, since there were other things (balloon parameter f.e.) that were changed with qemu-kvm-0.12 and caused troubles when using libvirt. thx,t

3 5

[libvirt] Regarding lxc driver for libvirt.
by Kumar L Srikanth-B22348 08 Feb '10

08 Feb '10

Hi, I am new to libvirt. I want to create a Domain using libvirt XML. In order to mount the host's '/home/srikanth' directory to the new container's '/' directory, my XML format is shown below: <domain type='lxc' id='1'> <name>container1_vm</name> <memory>500000</memory> <os> <type>exe</type> <init>/bin/sh</init> </os> <vcpu>1</vcpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount'> <source dir='/home/srikanth'/> <target dir='/'/> </filesystem> <console type='pty' /> </devices> </domain> With the above libvirt XML, Domain is defining, but not starting. When I issue the start command it's saying "Domain started", but showing "shut off" status. If I changed the target directory(<traget dir='/'/>) from '/' to '/home/container1'(<traget dir='/home/container1'/>), the domain is starting normally and I am able to see the contents in the target directory. Can you please let me know, how can I set the target directory to '/'? By the way, I am using libvirt version o.7.6. Regards, Srikanth.

2 1

[libvirt] [PATCH UPDATE] Add support for virtio channel
by Matthew Booth 08 Feb '10

08 Feb '10

Amit pointed out that byte_limit, guest_byte_limit and cache_buffers are now gone. They are removed in these updated patches.

2 3

[libvirt] FYI, [PATCH] build: update gnulib submodule to latest
by Jim Meyering 06 Feb '10

06 Feb '10

FYI, I've just pushed this: >From 26bd7bef58296300cd81756297de514b9c2073df Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Fri, 5 Feb 2010 17:57:39 +0100 Subject: [PATCH] build: update gnulib submodule to latest * .gnulib: This fixes a warning in test-gettimeofday.c, seen via "make check". Reported by Daniel Veillard. --- .gnulib | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/.gnulib b/.gnulib index 9d0ad65..11fbc57 160000 --- a/.gnulib +++ b/.gnulib @@ -1 +1 @@ -Subproject commit 9d0ad652de159d08e5f679842f8a2a5658196361 +Subproject commit 11fbc57405a118e6ec9a3ebc19bbf5ececdae4d6 -- 1.7.0.rc1.204.gb96e

1 0

[libvirt] FW: Regarding lxc driver for libvirt.
by Kumar L Srikanth-B22348 05 Feb '10

05 Feb '10

Can anyone help in the below issue? Regards, Srikanth. -----Original Message----- From: Kumar L Srikanth-B22348 Sent: Friday, February 05, 2010 4:02 PM To: 'libvir-list(a)redhat.com' Subject: Regarding lxc driver for libvirt. Hi, I am new to libvirt. I want to create a Domain using libvirt XML. In order to mount the host's '/home/srikanth' directory to the new container's '/' directory, my XML format is shown below: <domain type='lxc' id='1'> <name>container1_vm</name> <memory>500000</memory> <os> <type>exe</type> <init>/bin/sh</init> </os> <vcpu>1</vcpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount'> <source dir='/home/srikanth'/> <target dir='/'/> </filesystem> <console type='pty' /> </devices> </domain> With the above libvirt XML, Domain is defining, but not starting. When I issue the start command it's saying "Domain started", but showing "shut off" status. If I changed the target directory(<traget dir='/'/>) from '/' to '/home/container1'(<traget dir='/home/container1'/>), the domain is starting normally and I am able to see the contents in the target directory. Can you please let me know, how can I set the target directory to '/'? By the way, I am using libvirt version o.7.6. Regards, Srikanth.

1 0

[libvirt] [PATCH] absolutePathFromBaseFile: don't leak when first arg contains no "/"
by Jim Meyering 05 Feb '10

05 Feb '10

Not only did this function leak(p), but it would also over-allocate (by the length of basename(base_file)), and then later, re-alloc to compensate, so I rewrote it: >From 1dc52930daa000b407d8a8f18588a19cf4e8b7f5 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 4 Feb 2010 16:55:57 +0100 Subject: [PATCH] absolutePathFromBaseFile: don't leak when first arg contains no "/" * src/util/storage_file.c: Include "dirname.h". (absolutePathFromBaseFile): Rewrite not to leak, and to require fewer allocations. * bootstrap (modules): Add dirname-lgpl and stpncpy. * .gnulib: Update submodule to the latest. --- .gnulib | 2 +- bootstrap | 2 ++ src/util/storage_file.c | 27 ++++++++++----------------- 3 files changed, 13 insertions(+), 18 deletions(-) diff --git a/.gnulib b/.gnulib index 146d914..9d0ad65 160000 --- a/.gnulib +++ b/.gnulib @@ -1 +1 @@ -Subproject commit 146d9145073e62a2096a2d6b33f75e93908fedf3 +Subproject commit 9d0ad652de159d08e5f679842f8a2a5658196361 diff --git a/bootstrap b/bootstrap index cc3c6ef..5cc43c5 100755 --- a/bootstrap +++ b/bootstrap @@ -71,6 +71,7 @@ c-ctype canonicalize-lgpl close connect +dirname-lgpl getaddrinfo gethostname getpass @@ -93,6 +94,7 @@ send setsockopt socket stpcpy +stpncpy strchrnul strndup strerror diff --git a/src/util/storage_file.c b/src/util/storage_file.c index 44057d2..8c53fba 100644 --- a/src/util/storage_file.c +++ b/src/util/storage_file.c @@ -1,7 +1,7 @@ /* * storage_file.c: file utility functions for FS storage backend * - * Copyright (C) 2007-2009 Red Hat, Inc. + * Copyright (C) 2007-2010 Red Hat, Inc. * Copyright (C) 2007-2008 Daniel P. Berrange * * This library is free software; you can redistribute it and/or @@ -26,6 +26,7 @@ #include <unistd.h> #include <fcntl.h> +#include "dirname.h" #include "memory.h" #include "virterror_internal.h" @@ -246,26 +247,18 @@ vmdk4GetBackingStore(virConnectPtr conn, static char * absolutePathFromBaseFile(const char *base_file, const char *path) { - size_t base_size, path_size; - char *res, *p; + char *res; + size_t d_len = dir_len (base_file); - if (*path == '/') + /* If path is already absolute, or if dirname(base_file) is ".", + just return a copy of path. */ + if (*path == '/' || d_len == 0) return strdup(path); - base_size = strlen(base_file) + 1; - path_size = strlen(path) + 1; - if (VIR_ALLOC_N(res, base_size - 1 + path_size) < 0) + if (VIR_ALLOC_N(res, d_len + 1 + strlen(path) + 1) < 0) return NULL; - memcpy(res, base_file, base_size); - p = strrchr(res, '/'); - if (p != NULL) - p++; - else - p = res; - memcpy(p, path, path_size); - if (VIR_REALLOC_N(res, (p + path_size) - res) < 0) { - /* Ignore failure */ - } + + stpcpy(stpcpy(stpncpy(res, base_file, d_len), "/"), path); return res; } -- 1.7.0.rc1.199.g9253a

3 6

[libvirt] [PATCH 0/12] Improve security driver handling & QEMU DAC management
by Daniel P. Berrange 05 Feb '10

05 Feb '10

This patch series does some work on te security drivers, and the QEMU code for managing DAC permissions on files. The core goal is to turn the QEMU driver DAC file management code into a security driver. Instead of QEMU calling into the SELinux/AppArmour drivers directly, a stacked driver module is introduced. This delegates all operations to first the QEMU DAC driver, and then the main SELinux/AppArmour driver. The end result is that all the permissions management code is removed from the QEMU driver, and we're left with just simple security driver calls. In the process of this a number of flaws in the current hotplug code were found, and code was generally tidied up with a view to making it easier to manage. Finally, we add the ability to turn off the QEMU DAC file managment code, and also deal gracefully with failures to change ownership (eg on NFS with root squash, or readonly FS).

5 37

[libvirt] [PATCH] storage: Replace storageLog with VIR_ERROR
by Matthias Bolte 05 Feb '10

05 Feb '10

--- src/storage/storage_driver.c | 23 ++++++++++------------- 1 files changed, 10 insertions(+), 13 deletions(-) diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index 50fcbe2..37be77d 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -40,11 +40,10 @@ #include "storage_conf.h" #include "memory.h" #include "storage_backend.h" +#include "logging.h" #define VIR_FROM_THIS VIR_FROM_STORAGE -#define storageLog(msg...) fprintf(stderr, msg) - static virStorageDriverStatePtr driverState; static int storageDriverShutdown(void); @@ -70,8 +69,7 @@ storageDriverAutostart(virStorageDriverStatePtr driver) { !virStoragePoolObjIsActive(pool)) { virStorageBackendPtr backend; if ((backend = virStorageBackendForType(pool->def->type)) == NULL) { - storageLog("Missing backend %d", - pool->def->type); + VIR_ERROR("Missing backend %d", pool->def->type); virStoragePoolObjUnlock(pool); continue; } @@ -79,9 +77,9 @@ storageDriverAutostart(virStorageDriverStatePtr driver) { if (backend->startPool && backend->startPool(NULL, pool) < 0) { virErrorPtr err = virGetLastError(); - storageLog("Failed to autostart storage pool '%s': %s", - pool->def->name, err ? err->message : - "no error message found"); + VIR_ERROR("Failed to autostart storage pool '%s': %s", + pool->def->name, err ? err->message : + "no error message found"); virStoragePoolObjUnlock(pool); continue; } @@ -90,9 +88,9 @@ storageDriverAutostart(virStorageDriverStatePtr driver) { virErrorPtr err = virGetLastError(); if (backend->stopPool) backend->stopPool(NULL, pool); - storageLog("Failed to autostart storage pool '%s': %s", - pool->def->name, err ? err->message : - "no error message found"); + VIR_ERROR("Failed to autostart storage pool '%s': %s", + pool->def->name, err ? err->message : + "no error message found"); virStoragePoolObjUnlock(pool); continue; } @@ -132,7 +130,6 @@ storageDriverStartup(int privileged) { goto error; if (virAsprintf(&base, "%s/.libvirt", userdir) == -1) { - storageLog("out of memory in virAsprintf"); VIR_FREE(userdir); goto out_of_memory; } @@ -175,7 +172,7 @@ storageDriverStartup(int privileged) { return 0; out_of_memory: - storageLog("virStorageStartup: out of memory"); + virReportOOMError(NULL); error: VIR_FREE(base); storageDriverUnlock(driverState); @@ -635,7 +632,7 @@ storagePoolUndefine(virStoragePoolPtr obj) { if (unlink(pool->autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) { char ebuf[1024]; - storageLog("Failed to delete autostart link '%s': %s", + VIR_ERROR("Failed to delete autostart link '%s': %s", pool->autostartLink, virStrerror(errno, ebuf, sizeof ebuf)); } -- 1.6.3.3

3 4

[libvirt] [PATCH] website: Add a 1em right margin
by Matthias Bolte 05 Feb '10

05 Feb '10

This stops the text and pre-boxes from touching the right border. --- docs/libvirt.css | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/docs/libvirt.css b/docs/libvirt.css index a4d1ddd..dfc93c6 100644 --- a/docs/libvirt.css +++ b/docs/libvirt.css @@ -30,6 +30,7 @@ h2, h3, h4, h5, h6 { #content { margin-left: 230px; + margin-right: 1em; padding: 0px; padding-bottom: 1em; } -- 1.6.3.3

2 2

[libvirt] [PATCH] opennebula: Remove unnecessary casts
by Matthias Bolte 05 Feb '10

05 Feb '10

--- src/opennebula/one_driver.c | 36 ++++++++++++++++++------------------ 1 files changed, 18 insertions(+), 18 deletions(-) diff --git a/src/opennebula/one_driver.c b/src/opennebula/one_driver.c index ad7faca..c96d24d 100644 --- a/src/opennebula/one_driver.c +++ b/src/opennebula/one_driver.c @@ -108,7 +108,7 @@ static int oneIsSecure(virConnectPtr conn ATTRIBUTE_UNUSED) static virDomainPtr oneDomainLookupByID(virConnectPtr conn, int id) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; virDomainPtr dom = NULL; virDomainObjPtr vm = NULL; @@ -137,7 +137,7 @@ return_point: static virDomainPtr oneDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; virDomainPtr dom = NULL; virDomainObjPtr vm = NULL; @@ -165,7 +165,7 @@ return_point: static virDomainPtr oneDomainLookupByName(virConnectPtr conn, const char *name) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; virDomainObjPtr vm = NULL; virDomainPtr dom=NULL; @@ -192,7 +192,7 @@ return_point: static int oneListDomains(virConnectPtr conn, int *ids, int nids) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; int n; oneDriverLock(driver); @@ -204,7 +204,7 @@ static int oneListDomains(virConnectPtr conn, int *ids, int nids) static int oneNumDomains(virConnectPtr conn) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; int n; oneDriverLock(driver); @@ -216,7 +216,7 @@ static int oneNumDomains(virConnectPtr conn) static int oneListDefinedDomains(virConnectPtr conn, char **const names, int nnames) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; int n; oneDriverLock(driver); @@ -228,7 +228,7 @@ static int oneListDefinedDomains(virConnectPtr conn, static int oneNumDefinedDomains(virConnectPtr conn) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; int n; oneDriverLock(driver); @@ -240,7 +240,7 @@ static int oneNumDefinedDomains(virConnectPtr conn) static virDomainPtr oneDomainDefine(virConnectPtr conn, const char *xml) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; virDomainDefPtr def; virDomainObjPtr vm; virDomainPtr dom=NULL; @@ -272,7 +272,7 @@ return_point: static int oneDomainUndefine(virDomainPtr dom) { - one_driver_t *driver = (one_driver_t *)dom->conn->privateData; + one_driver_t *driver = dom->conn->privateData; virDomainObjPtr vm = NULL; int ret=-1; @@ -302,7 +302,7 @@ return_point: static int oneDomainGetInfo(virDomainPtr dom, virDomainInfoPtr info) { - one_driver_t *driver = (one_driver_t *)dom->conn->privateData; + one_driver_t *driver = dom->conn->privateData; struct timeval tv; virDomainObjPtr vm; oneDriverLock(driver); @@ -377,7 +377,7 @@ static int oneDomainGetInfo(virDomainPtr dom, static char *oneGetOSType(virDomainPtr dom) { - one_driver_t *driver = (one_driver_t *)dom->conn->privateData; + one_driver_t *driver = dom->conn->privateData; virDomainObjPtr vm = NULL; char *ret = NULL; @@ -403,7 +403,7 @@ cleanup: static int oneDomainStart(virDomainPtr dom) { virConnectPtr conn = dom->conn; - one_driver_t *driver = (one_driver_t *)(conn->privateData); + one_driver_t *driver = conn->privateData; virDomainObjPtr vm; int ret = -1; int oneid; @@ -436,7 +436,7 @@ static virDomainPtr oneDomainCreateAndStart(virConnectPtr conn, const char *xml, unsigned int flags ATTRIBUTE_UNUSED) { - one_driver_t *driver = (one_driver_t *)conn->privateData; + one_driver_t *driver = conn->privateData; virDomainObjPtr vm = NULL; virDomainDefPtr def; virDomainPtr dom = NULL; @@ -486,7 +486,7 @@ return_point: static int oneDomainShutdown(virDomainPtr dom) { - one_driver_t *driver = (one_driver_t*)dom->conn->privateData; + one_driver_t *driver = dom->conn->privateData; virDomainObjPtr vm; int ret=-1; @@ -520,7 +520,7 @@ return_point: static int oneDomainDestroy(virDomainPtr dom) { - one_driver_t *driver = (one_driver_t*)dom->conn->privateData; + one_driver_t *driver = dom->conn->privateData; virDomainObjPtr vm; int ret=-1; @@ -556,7 +556,7 @@ return_point: static int oneDomainSuspend(virDomainPtr dom) { - one_driver_t* driver=dom->conn->privateData; + one_driver_t* driver = dom->conn->privateData; virDomainObjPtr vm; int ret=-1; @@ -590,7 +590,7 @@ return_point: static int oneDomainResume(virDomainPtr dom) { - one_driver_t* driver=dom->conn->privateData; + one_driver_t* driver = dom->conn->privateData; virDomainObjPtr vm; int ret=-1; @@ -698,7 +698,7 @@ static int oneGetAutostart(virDomainPtr domain ATTRIBUTE_UNUSED, int *autostart) } static char* oneGetCapabilities(virConnectPtr conn){ - one_driver_t* privconn=conn->privateData; + one_driver_t* privconn = conn->privateData; char *xml; oneDriverLock(privconn); if ((xml = virCapabilitiesFormatXML(privconn->caps)) == NULL) -- 1.6.3.3

2 2

[libvirt] [PATCH] cpu conf: Use virBufferFreeAndReset instead of virBufferContentAndReset and VIR_FREE
by Matthias Bolte 05 Feb '10

05 Feb '10

--- src/conf/cpu_conf.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/src/conf/cpu_conf.c b/src/conf/cpu_conf.c index e7924c1..244d670 100644 --- a/src/conf/cpu_conf.c +++ b/src/conf/cpu_conf.c @@ -249,7 +249,6 @@ virCPUDefFormat(virConnectPtr conn, int flags) { virBuffer buf = VIR_BUFFER_INITIALIZER; - char *tmp; if (virCPUDefFormatBuf(conn, &buf, def, indent, flags) < 0) goto cleanup; @@ -262,8 +261,7 @@ virCPUDefFormat(virConnectPtr conn, no_memory: virReportOOMError(conn); cleanup: - tmp = virBufferContentAndReset(&buf); - VIR_FREE(tmp); + virBufferFreeAndReset(&buf); return NULL; } -- 1.6.3.3

2 2

[libvirt] [PATCH] docs: Refer to virReportOOMError in the HACKING file
by Matthias Bolte 05 Feb '10

05 Feb '10

Instead of refering to __virRaiseError(VIR_ERROR_NO_MEMORY). --- HACKING | 22 +++++++++++----------- docs/hacking.html.in | 20 ++++++++++---------- 2 files changed, 21 insertions(+), 21 deletions(-) diff --git a/HACKING b/HACKING index 3844e50..4bf216c 100644 --- a/HACKING +++ b/HACKING @@ -166,13 +166,13 @@ codebase, because they encourage a number of serious coding bugs and do not enable compile time verification of checks for NULL. Instead of these routines, use the macros from memory.h - - eg to allocate a single object: + - eg to allocate a single object: virDomainPtr domain; if (VIR_ALLOC(domain) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } @@ -182,8 +182,8 @@ routines, use the macros from memory.h int ndomains = 10; if (VIR_ALLOC_N(domains, ndomains) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } - eg to allocate an array of object pointers @@ -192,8 +192,8 @@ routines, use the macros from memory.h int ndomains = 10; if (VIR_ALLOC_N(domains, ndomains) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } - eg to re-allocate the array of domains to be longer @@ -201,8 +201,8 @@ routines, use the macros from memory.h ndomains = 20 if (VIR_REALLOC_N(domains, ndomains) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } - eg to free the domain @@ -297,7 +297,7 @@ eg typical usage is as follows: if (virBufferError(&buf)) { virBufferFreeAndReset(&buf); - virReportOOMError(...); + virReportOOMError(NULL); return NULL; } @@ -385,7 +385,7 @@ to build: - if a recently commited patch breaks compilation on a platform or for a given driver then it's fine to commit a minimal fix directly without getting the review feedback first - - similary if make check or make syntax-chek breaks, if there is + - similary if make check or make syntax-check breaks, if there is an obvious fix, it's fine to commit immediately The patch should still be sent to the list (or tell what the fix was if trivial) and 'make check syntax-check' should pass too before commiting diff --git a/docs/hacking.html.in b/docs/hacking.html.in index 96f6657..71b4f47 100644 --- a/docs/hacking.html.in +++ b/docs/hacking.html.in @@ -192,8 +192,8 @@ virDomainPtr domain; if (VIR_ALLOC(domain) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } </pre></li> @@ -204,8 +204,8 @@ int ndomains = 10; if (VIR_ALLOC_N(domains, ndomains) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } </pre></li> @@ -216,8 +216,8 @@ int ndomains = 10; if (VIR_ALLOC_N(domains, ndomains) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } </pre></li> @@ -227,8 +227,8 @@ ndomains = 20 if (VIR_REALLOC_N(domains, ndomains) < 0) { - __virRaiseError(VIR_ERROR_NO_MEMORY) - return NULL; + virReportOOMError(NULL); + return NULL; } </pre></li> @@ -314,7 +314,7 @@ if (virBufferError(&buf)) { virBufferFreeAndReset(&buf); - virReportOOMError(...); + virReportOOMError(NULL); return NULL; } @@ -419,7 +419,7 @@ <li>if a recently commited patch breaks compilation on a platform or for a given driver then it's fine to commit a minimal fix directly without getting the review feedback first</li> - <li>if make check or make syntax-chek breaks, if there is + <li>if make check or make syntax-check breaks, if there is an obvious fix, it's fine to commit immediately. The patch should still be sent to the list (or tell what the fix was if trivial) and 'make check syntax-check' should pass too before commiting -- 1.6.3.3

2 2

[libvirt] [PATCH] esx: Cleanup preprocessing structure in esxVI_EnsureSession
by Matthias Bolte 05 Feb '10

05 Feb '10

--- src/esx/esx_vi.c | 14 ++++++-------- 1 files changed, 6 insertions(+), 8 deletions(-) diff --git a/src/esx/esx_vi.c b/src/esx/esx_vi.c index bc94326..19c85c5 100644 --- a/src/esx/esx_vi.c +++ b/src/esx/esx_vi.c @@ -1317,16 +1317,18 @@ esxVI_BuildFullTraversalSpecList(esxVI_SelectionSpec **fullTraversalSpecList) * you try to call it. Query the session manager for the current session of * this connection instead and re-login if there is no current session for this * connection. + * + * Update: 'ESX 4.0.0 build-171294' doesn't implement this method. */ #define ESX_VI_USE_SESSION_IS_ACTIVE 0 int esxVI_EnsureSession(esxVI_Context *ctx) { - int result = 0; #if ESX_VI_USE_SESSION_IS_ACTIVE esxVI_Boolean active = esxVI_Boolean_Undefined; #else + int result = 0; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *sessionManager = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -1352,6 +1354,8 @@ esxVI_EnsureSession(esxVI_Context *ctx) return -1; } } + + return 0; #else if (esxVI_String_AppendValueToList(&propertyNameList, "currentSession") < 0 || @@ -1388,16 +1392,11 @@ esxVI_EnsureSession(esxVI_Context *ctx) "last login"); goto failure; } -#endif cleanup: -#if ESX_VI_USE_SESSION_IS_ACTIVE - /* nothing */ -#else esxVI_String_Free(&propertyNameList); esxVI_ObjectContent_Free(&sessionManager); esxVI_UserSession_Free(&currentSession); -#endif return result; @@ -1405,8 +1404,7 @@ esxVI_EnsureSession(esxVI_Context *ctx) result = -1; goto cleanup; - - return 0; +#endif } -- 1.6.3.3

2 2

[libvirt] [PATCH] docs: Emphasize that devices have to be inside the <devices> element
by Matthias Bolte 05 Feb '10

05 Feb '10

Also cleanup indentation of domain XML examples. --- docs/drvxen.html.in | 12 +- docs/formatdomain.html.in | 776 +++++++++++++++++++++++++-------------------- 2 files changed, 430 insertions(+), 358 deletions(-) diff --git a/docs/drvxen.html.in b/docs/drvxen.html.in index a6f0e57..4e35afa 100644 --- a/docs/drvxen.html.in +++ b/docs/drvxen.html.in @@ -234,9 +234,9 @@ vif = [ "mac=00:16:3e:60:36:ba,bridge=virbr0,script=vif-bridge,vifname=vif5.0" ] <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <features> - <pae/> - <acpi/> - <apic/> + <pae/> + <acpi/> + <apic/> </features> <clock sync="localtime"/> <devices> @@ -288,9 +288,9 @@ vif = [ "mac=00:16:3e:60:36:ba,bridge=virbr0,script=vif-bridge,vifname=vif5.0" ] <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <features> - <pae/> - <acpi/> - <apic/> + <pae/> + <acpi/> + <apic/> </features> <clock sync="localtime"/> <devices> diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index ce49f7d..083a80a 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -28,11 +28,11 @@ <h3><a name="elementsMetadata">General metadata</a></h3> - <pre> - <domain type='xen' id='3'> - <name>fv0</name> - <uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid> - ...</pre> +<pre> +<domain type='xen' id='3'> + <name>fv0</name> + <uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid> + ...</pre> <dl> <dt><code>name</code></dt> @@ -66,14 +66,14 @@ to obtain/find the boot image. </p> - <pre> - ... - <os> - <type>hvm</type> - <loader>/usr/lib/xen/boot/hvmloader</loader> - <boot dev='hd'/> - </os> - ...</pre> +<pre> + ... + <os> + <type>hvm</type> + <loader>/usr/lib/xen/boot/hvmloader</loader> + <boot dev='hd'/> + </os> + ...</pre> <dl> <dt><code>type</code></dt> @@ -109,11 +109,11 @@ An example is <code>pygrub</code> with Xen. </p> - <pre> - ... - <bootloader>/usr/bin/pygrub</bootloader> - <bootloader_args>--append single</bootloader_args> - ...</pre> +<pre> + ... + <bootloader>/usr/bin/pygrub</bootloader> + <bootloader_args>--append single</bootloader_args> + ...</pre> <dl> <dt><code>bootloader</code></dt> @@ -139,16 +139,16 @@ is usually available for both para and full virtualized guests. </p> - <pre> - ... - <os> - <type>hvm</type> - <loader>/usr/lib/xen/boot/hvmloader</loader> - <kernel>/root/f8-i386-vmlinuz</kernel> - <initrd>/root/f8-i386-initrd</initrd> - <cmdline>console=ttyS0 ks=http://example.com/f8-i386/os/</cmdline> - </os> - ...</pre> +<pre> + ... + <os> + <type>hvm</type> + <loader>/usr/lib/xen/boot/hvmloader</loader> + <kernel>/root/f8-i386-vmlinuz</kernel> + <initrd>/root/f8-i386-initrd</initrd> + <cmdline>console=ttyS0 ks=http://example.com/f8-i386/os/</cmdline> + </os> + ...</pre> <dl> <dt><code>type</code></dt> @@ -172,15 +172,15 @@ <h3><a name="elementsResources">Basic resources</a></h3> - <pre> - ... - <memory>524288</memory> - <currentMemory>524288</currentMemory> - <memoryBacking> - <hugepages/> - </memoryBacking> - <vcpu>1</vcpu> - ...</pre> +<pre> + ... + <memory>524288</memory> + <currentMemory>524288</currentMemory> + <memoryBacking> + <hugepages/> + </memoryBacking> + <vcpu>1</vcpu> + ...</pre> <dl> <dt><code>memory</code></dt> @@ -209,14 +209,14 @@ <span class="since">Since 0.7.5</span> </p> - <pre> - ... - <cpu match='exact'> - <model>core2duo</model> - <topology sockets='1' cores='2' threads='1'/> - <feature policy='disable' name='lahf_lm'/> - </cpu> - ...</pre> +<pre> + ... + <cpu match='exact'> + <model>core2duo</model> + <topology sockets='1' cores='2' threads='1'/> + <feature policy='disable' name='lahf_lm'/> + </cpu> + ...</pre> <p> In case no restrictions need to be put on CPU model and its features, a @@ -224,12 +224,12 @@ <span class="since">Since 0.7.6</span> </p> - <pre> - ... - <cpu> - <topology sockets='1' cores='2' threads='1'/> - </cpu> - ...</pre> +<pre> + ... + <cpu> + <topology sockets='1' cores='2' threads='1'/> + </cpu> + ...</pre> <dl> <dt><code>cpu</code></dt> @@ -305,12 +305,12 @@ re-configured for the first post-install bootup. </p> - <pre> - ... - <on_poweroff>destroy</on_poweroff> - <on_reboot>restart</on_reboot> - <on_crash>restart</on_crash> - ...</pre> +<pre> + ... + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + ...</pre> <dl> <dt><code>on_poweroff</code></dt> @@ -350,14 +350,14 @@ toggled on/off. </p> - <pre> - ... - <features> - <pae/> - <acpi/> - <apic/> - </features> - ...</pre> +<pre> + ... + <features> + <pae/> + <acpi/> + <apic/> + </features> + ...</pre> <p> All features are listed within the <code>features</code> @@ -386,10 +386,10 @@ it to be in so called 'localtime'. </p> - <pre> - ... - <clock offset="localtime"/> - ...</pre> +<pre> + ... + <clock offset="localtime"/> + ...</pre> <dl> <dt><code>clock</code></dt> @@ -408,11 +408,12 @@ <span class="since">Since 0.1.3</span> </p> - <pre> - ... - <devices> - <emulator>/usr/lib/xen/bin/qemu-dm</emulator> - ...</pre> +<pre> + ... + <devices> + <emulator>/usr/lib/xen/bin/qemu-dm</emulator> + </devices> + ...</pre> <dl> <dt><code>emulator</code></dt> @@ -433,18 +434,20 @@ element. </p> - <pre> - ... - <disk type='file'> - <driver name="tap" type="aio" cache="default"> - <source file='/var/lib/xen/images/fv0'/> - <target dev='hda' bus='ide'/> - <encryption type='...'> - ... - </encryption> - <shareable/> - </disk> - ...</pre> +<pre> + ... + <devices> + <disk type='file'> + <driver name="tap" type="aio" cache="default"> + <source file='/var/lib/xen/images/fv0'/> + <target dev='hda' bus='ide'/> + <encryption type='...'> + ... + </encryption> + <shareable/> + </disk> + </devices> + ...</pre> <dl> <dt><code>disk</code></dt> @@ -500,24 +503,30 @@ 0.4.4 for USB and 0.6.0 for PCI (KVM only)</span>: </p> - <pre> - ... - <hostdev mode='subsystem' type='usb'> - <source> - <vendor id='0x1234'/> - <product id='0xbeef'/> - </source> - </hostdev> - ...</pre> +<pre> + ... + <devices> + <hostdev mode='subsystem' type='usb'> + <source> + <vendor id='0x1234'/> + <product id='0xbeef'/> + </source> + </hostdev> + </devices> + ...</pre> + <p>or:</p> - <pre> - ... - <hostdev mode='subsystem' type='pci'> - <source> - <address bus='0x06' slot='0x02' function='0x0'/> - </source> - </hostdev> - ...</pre> + +<pre> + ... + <devices> + <hostdev mode='subsystem' type='pci'> + <source> + <address bus='0x06' slot='0x02' function='0x0'/> + </source> + </hostdev> + </devices> + ...</pre> <dl> <dt><code>hostdev</code></dt> @@ -556,14 +565,16 @@ <h4><a name="elementsNICS">Network interfaces</a></h4> - <pre> - ... - <interface type='bridge'> - <source bridge='xenbr0'/> - <mac address='00:16:3e:5d:c7:9e'/> - <script path='vif-bridge'/> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='bridge'> + <source bridge='xenbr0'/> + <mac address='00:16:3e:5d:c7:9e'/> + <script path='vif-bridge'/> + </interface> + </devices> + ...</pre> <h5><a name="elementsNICSVirtual">Virtual network</a></h5> @@ -589,18 +600,20 @@ <a href="#elementsNICSTargetOverride">overriding the target element</a>). </p> - <pre> - ... - <interface type='network'> - <source network='default'/> - </interface> - ... - <interface type='network'> - <source network='default'/> - <target dev='vnet7'/> - <mac address="11:22:33:44:55:66"/> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='network'> + <source network='default'/> + </interface> + ... + <interface type='network'> + <source network='default'/> + <target dev='vnet7'/> + <mac address="11:22:33:44:55:66"/> + </interface> + </devices> + ...</pre> <h5><a name="elementsNICSBridge">Bridge to LAN</a></h5> @@ -623,18 +636,20 @@ full incoming & outgoing net access just like a physical machine. </p> - <pre> - ... - <interface type='bridge'> - <source bridge='br0'/> - </interface> - - <interface type='bridge'> - <source bridge='br0'/> - <target dev='vnet7'/> - <mac address="11:22:33:44:55:66"/> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='bridge'> + <source bridge='br0'/> + </interface> + ... + <interface type='bridge'> + <source bridge='br0'/> + <target dev='vnet7'/> + <mac address="11:22:33:44:55:66"/> + </interface> + </devices> + ...</pre> <h5><a name="elementsNICSSlirp">Userspace SLIRP stack</a></h5> @@ -647,14 +662,16 @@ VMs to have outgoing access. </p> - <pre> - ... - <interface type='user'/> - ... - <interface type='user'> - <mac address="11:22:33:44:55:66"/> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='user'/> + ... + <interface type='user'> + <mac address="11:22:33:44:55:66"/> + </interface> + </devices> + ...</pre> <h5><a name="elementsNICSEthernet">Generic ethernet connection</a></h5> @@ -669,15 +686,17 @@ overridden. </p> - <pre> - ... - <interface type='ethernet'/> - ... - <interface type='ethernet'> - <target dev='vnet7'/> - <script path='/etc/qemu-ifup-mynet'/> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='ethernet'/> + ... + <interface type='ethernet'> + <target dev='vnet7'/> + <script path='/etc/qemu-ifup-mynet'/> + </interface> + </devices> + ...</pre> <h5><a name="elementsNICSMulticast">Multicast tunnel</a></h5> @@ -693,12 +712,14 @@ multicast address block. </p> - <pre> - ... - <interface type='mcast'> - <source address='230.0.0.1' port='5558'/> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='mcast'> + <source address='230.0.0.1' port='5558'/> + </interface> + </devices> + ...</pre> <h5><a name="elementsNICSTCP">TCP tunnel</a></h5> @@ -711,27 +732,31 @@ network access, one of the VMs should have a 2nd NIC which is connected to one of the first 4 network types and do the appropriate routing.</p> - <pre> - ... - <interface type='server'> - <source address='192.168.0.1' port='5558'/> - </interface> - ... - <interface type='client'> +<pre> + ... + <devices> + <interface type='server'> <source address='192.168.0.1' port='5558'/> - </interface> - ...</pre> + </interface> + ... + <interface type='client'> + <source address='192.168.0.1' port='5558'/> + </interface> + </devices> + ...</pre> <h5><a name="elementsNICSModel">Setting the NIC model</a></h5> - <pre> - ... - <interface type='network'> - <source network='default'/> - <target dev='vnet1'/> - <b><model type='ne2k_pci'/></b> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='network'> + <source network='default'/> + <target dev='vnet1'/> + <b><model type='ne2k_pci'/></b> + </interface> + </devices> + ...</pre> <p> For hypervisors which support this, you can set the model of @@ -757,13 +782,15 @@ qemu-kvm -net nic,model=? /dev/null <h5><a name="elementsNICSTargetOverride">Overriding the target element</a></h5> - <pre> - ... - <interface type='network'> - <source network='default'/> - <b><target dev='vnet1'/></b> - </interface> - ...</pre> +<pre> + ... + <devices> + <interface type='network'> + <source network='default'/> + <b><target dev='vnet1'/></b> + </interface> + </devices> + ...</pre> <p> If no target is specified, certain hypervisors will automatically @@ -783,10 +810,12 @@ qemu-kvm -net nic,model=? /dev/null to provide a graphics tablet for absolute cursor movement. </p> - <pre> - ... - <input type='mouse' bus='usb'/> - ...</pre> +<pre> + ... + <devices> + <input type='mouse' bus='usb'/> + </devices> + ...</pre> <dl> <dt><code>input</code></dt> @@ -807,13 +836,15 @@ qemu-kvm -net nic,model=? /dev/null admin. </p> - <pre> - ... - <graphics type='sdl' display=':0.0'/> - <graphics type='vnc' port='5904'/> - <graphics type='rdp' autoport='yes' multiUser='yes' /> - <graphics type='desktop' fullscreen='yes'/> - ...</pre> +<pre> + ... + <devices> + <graphics type='sdl' display=':0.0'/> + <graphics type='vnc' port='5904'/> + <graphics type='rdp' autoport='yes' multiUser='yes' /> + <graphics type='desktop' fullscreen='yes'/> + </devices> + ...</pre> <dl> <dt><code>graphics</code></dt> @@ -867,14 +898,16 @@ qemu-kvm -net nic,model=? /dev/null A video device. </p> - <pre> - ... - <video> - <model type='vga' vram='8192' heads='1'> - <acceleration accel3d='yes' accel3d='yes'/> - </model> - </video> - ...</pre> +<pre> + ... + <devices> + <video> + <model type='vga' vram='8192' heads='1'> + <acceleration accel3d='yes' accel3d='yes'/> + </model> + </video> + </devices> + ...</pre> <dl> <dt><code>video</code></dt> @@ -907,26 +940,27 @@ qemu-kvm -net nic,model=? /dev/null all classed as character devices and so represented using the same syntax. </p> - <pre> - ... - <parallel type='pty'> - <source path='/dev/pts/2'/> - <target port='0'/> - </parallel> - <serial type='pty'> - <source path='/dev/pts/3'/> - <target port='0'/> - </serial> - <console type='pty'> - <source path='/dev/pts/4'/> - <target port='0'/> - </console> - <channel type='unix'> - <source mode='bind' path='/tmp/guestfwd'/> - <target type='guestfwd' address='10.0.2.1' port='4600'/> - </channel> - </devices> - </domain></pre> +<pre> + ... + <devices> + <parallel type='pty'> + <source path='/dev/pts/2'/> + <target port='0'/> + </parallel> + <serial type='pty'> + <source path='/dev/pts/3'/> + <target port='0'/> + </serial> + <console type='pty'> + <source path='/dev/pts/4'/> + <target port='0'/> + </console> + <channel type='unix'> + <source mode='bind' path='/tmp/guestfwd'/> + <target type='guestfwd' address='10.0.2.1' port='4600'/> + </channel> + </devices> + ...</pre> <p> In each of these directives, the top-level element name (parallel, serial, @@ -949,13 +983,15 @@ qemu-kvm -net nic,model=? /dev/null <h6><a name="elementCharParallel">Parallel port</a></h6> - <pre> - ... - <parallel type='pty'> - <source path='/dev/pts/2'/> - <target port='0'/> - </parallel> - ...</pre> +<pre> + ... + <devices> + <parallel type='pty'> + <source path='/dev/pts/2'/> + <target port='0'/> + </parallel> + </devices> + ...</pre> <p> <code>target</code> can have a <code>port</code> attribute, which @@ -965,13 +1001,15 @@ qemu-kvm -net nic,model=? /dev/null <h6><a name="elementCharSerial">Serial port</a></h6> - <pre> - ... - <serial type='pty'> - <source path='/dev/pts/3'/> - <target port='0'/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type='pty'> + <source path='/dev/pts/3'/> + <target port='0'/> + </serial> + </devices> + ...</pre> <p> <code>target</code> can have a <code>port</code> attribute, which @@ -987,13 +1025,15 @@ qemu-kvm -net nic,model=? /dev/null virtualized guests without a paravirtualized console. </p> - <pre> - ... - <console type='pty'> - <source path='/dev/pts/4'/> - <target port='0'/> - </console> - ...</pre> +<pre> + ... + <devices> + <console type='pty'> + <source path='/dev/pts/4'/> + <target port='0'/> + </console> + </devices> + ...</pre> <p> If the console is presented as a serial port, the <code>target</code> @@ -1008,13 +1048,15 @@ qemu-kvm -net nic,model=? /dev/null guest. </p> - <pre> - ... - <channel type='unix'> - <source mode='bind' path='/tmp/guestfwd'/> - <target type='guestfwd' address='10.0.2.1' port='4600'/> - </channel> - ...</pre> +<pre> + ... + <devices> + <channel type='unix'> + <source mode='bind' path='/tmp/guestfwd'/> + <target type='guestfwd' address='10.0.2.1' port='4600'/> + </channel> + </devices> + ...</pre> <p> This can be implemented in a variety of ways. The specific type of @@ -1045,12 +1087,14 @@ qemu-kvm -net nic,model=? /dev/null into the virtual machine's logfile </p> - <pre> - ... - <console type='stdio'> - <target port='1'> - </console> - ...</pre> +<pre> + ... + <devices> + <console type='stdio'> + <target port='1'> + </console> + </devices> + ...</pre> <h6><a name="elementsCharFle">Device logfile</a></h6> @@ -1060,13 +1104,15 @@ qemu-kvm -net nic,model=? /dev/null device is written to the file. </p> - <pre> - ... - <serial type="file"> - <source path="/var/log/vm/vm-serial.log"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="file"> + <source path="/var/log/vm/vm-serial.log"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <h6><a name="elementsCharVC">Virtual console</a></h6> @@ -1076,12 +1122,14 @@ qemu-kvm -net nic,model=? /dev/null hotkey sequence such as "ctrl+alt+3" </p> - <pre> - ... - <serial type='vc'> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type='vc'> + <target port="1"/> + </serial> + </devices> + ...</pre> <h6><a name="elementsCharNull">Null device</a></h6> @@ -1090,12 +1138,14 @@ qemu-kvm -net nic,model=? /dev/null provided to the input. All data written is discarded. </p> - <pre> - ... - <serial type='null'> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type='null'> + <target port="1"/> + </serial> + </devices> + ...</pre> <h6><a name="elementsCharPTY">Pseudo TTY</a></h6> @@ -1105,13 +1155,15 @@ qemu-kvm -net nic,model=? /dev/null serial port locally. </p> - <pre> - ... - <serial type="pty"> - <source path="/dev/pts/3"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="pty"> + <source path="/dev/pts/3"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <p> NB special case if <console type='pty'>, then the TTY @@ -1130,13 +1182,15 @@ qemu-kvm -net nic,model=? /dev/null port. </p> - <pre> - ... - <serial type="dev"> - <source path="/dev/ttyS0"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="dev"> + <source path="/dev/ttyS0"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <h6><a name="elementsCharPipe">Named pipe</a></h6> @@ -1145,13 +1199,15 @@ qemu-kvm -net nic,model=? /dev/null more info. </p> - <pre> - ... - <serial type="pipe"> - <source path="/tmp/mypipe"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="pipe"> + <source path="/tmp/mypipe"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <h6><a name="elementsCharTCP">TCP client/server</a></h6> @@ -1160,46 +1216,52 @@ qemu-kvm -net nic,model=? /dev/null remote server. </p> - <pre> - ... - <serial type="tcp"> - <source mode="connect" host="0.0.0.0" service="2445"/> - <protocol type="raw"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="tcp"> + <source mode="connect" host="0.0.0.0" service="2445"/> + <protocol type="raw"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <p> Or as a TCP server waiting for a client connection. </p> - <pre> - ... - <serial type="tcp"> - <source mode="bind" host="127.0.0.1" service="2445"/> - <protocol type="raw"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="tcp"> + <source mode="bind" host="127.0.0.1" service="2445"/> + <protocol type="raw"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <p> Alternatively you can use telnet instead of raw TCP. <p> - <pre> - ... - <serial type="tcp"> - <source mode="connect" host="0.0.0.0" service="2445"/> - <protocol type="telnet"/> - <target port="1"/> - </serial> - ... - <serial type="tcp"> - <source mode="bind" host="127.0.0.1" service="2445"/> - <protocol type="telnet"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="tcp"> + <source mode="connect" host="0.0.0.0" service="2445"/> + <protocol type="telnet"/> + <target port="1"/> + </serial> + ... + <serial type="tcp"> + <source mode="bind" host="127.0.0.1" service="2445"/> + <protocol type="telnet"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <h6><a name="elementsCharUDP">UDP network console</a></h6> @@ -1208,14 +1270,16 @@ qemu-kvm -net nic,model=? /dev/null sending and receiving packets. This is a lossy service. </p> - <pre> - ... - <serial type="udp"> - <source mode="bind" host="0.0.0.0" service="2445"/> - <source mode="connect" host="0.0.0.0" service="2445"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="udp"> + <source mode="bind" host="0.0.0.0" service="2445"/> + <source mode="connect" host="0.0.0.0" service="2445"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <h6><a name="elementsCharUNIX">UNIX domain socket client/server</a></h6> @@ -1224,13 +1288,15 @@ qemu-kvm -net nic,model=? /dev/null accepting connections from local clients. </p> - <pre> - ... - <serial type="unix"> - <source mode="bind" path="/tmp/foo"/> - <target port="1"/> - </serial> - ...</pre> +<pre> + ... + <devices> + <serial type="unix"> + <source mode="bind" path="/tmp/foo"/> + <target port="1"/> + </serial> + </devices> + ...</pre> <h4><a name="elementsSound">Sound devices</a></h4> @@ -1240,10 +1306,12 @@ qemu-kvm -net nic,model=? /dev/null <code>sound</code> element. <span class="since">Since 0.4.3</span> </p> - <pre> - ... - <sound model='es1370'/> - ...</pre> +<pre> + ... + <devices> + <sound model='es1370'/> + </devices> + ...</pre> <dl> <dt><code>sound</code></dt> @@ -1276,15 +1344,19 @@ qemu-kvm -net nic,model=? /dev/null libvirt. </p> - <pre> - ... - <watchdog model='i6300esb'/> - ...</pre> +<pre> + ... + <devices> + <watchdog model='i6300esb'/> + </devices> + ...</pre> - <pre> - ... - <watchdog model='i6300esb' action='poweroff'/> - ...</pre> +<pre> + ... + <devices> + <watchdog model='i6300esb' action='poweroff'/> + </devices> +</domain></pre> <dl> <dt><code>model</code></dt> -- 1.6.3.3

2 2

[libvirt] [PATCH 0/9] Progress monitoring & cancellation of jobs
by Daniel P. Berrange 05 Feb '10

05 Feb '10

This series introduces 2 new APIs to allow long running jobs to be monitored and cancelled. This applies to virDomainMigrate, virDomainSave, virDomainRestore and virDomainCoreDump at least. The implementation is provided for QEMU only, any others that are able to implementation can do so as desired. Usefulness of these new APIs requires use of multiple threads on a single connection, or multiple connections, since the main API calls are still all fully blocking. Instead a parallel thread or process can monitor. This can be seen with virsh In termainl 1 $ virsh save demo demo.img In terminal 2 $ ./virsh domjobinfo demo Job type: Unbounded Time elapsed: 795 ms Data processed: 22446080 bytes Data remaining: 219119616 bytes Data total: 241565696 bytes Memory processed: 22446080 bytes Memory remaining: 219119616 bytes Memory total: 241565696 bytes $ ./virsh domjobinfo demo Job type: Unbounded Time elapsed: 1669 ms Data processed: 139784192 bytes Data remaining: 101781504 bytes Data total: 241565696 bytes Memory processed: 139784192 bytes Memory remaining: 101781504 bytes Memory total: 241565696 bytes $ ./virsh domjobabort demo Back in terminal 1 error: Failed to save domain demo to demo.img error: operation failed: Migration was cancelled by client

1 9

[libvirt] [PATCH] sexpr_string: avoid leak on OOM error path
by Jim Meyering 05 Feb '10

05 Feb '10

>From cc06142a81dc1891dc75306b986ea331f5fd5368 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 4 Feb 2010 17:55:15 +0100 Subject: [PATCH] sexpr_string: avoid leak on OOM error path * src/xen/sexpr.c (sexpr_string): Free sexpr buffer upon allocation failure. --- src/xen/sexpr.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/xen/sexpr.c b/src/xen/sexpr.c index 085500d..669f8a2 100644 --- a/src/xen/sexpr.c +++ b/src/xen/sexpr.c @@ -107,30 +107,31 @@ sexpr_nil(void) struct sexpr * sexpr_string(const char *str, ssize_t len) { struct sexpr *ret = sexpr_new(); if (ret == NULL) return ret; ret->kind = SEXPR_VALUE; if (len > 0) { ret->u.value = strndup(str, len); } else { ret->u.value = strdup(str); } if (ret->u.value == NULL) { + VIR_FREE(ret); return NULL; } return ret; } /** * sexpr_cons: * @car: the left operand * @cdr: the right operand * * Implement the CONS operation assembling 2 existing S-Expressions. * Note that in case of error the input data are not freed. * * Returns the resulting S-Expression pointer or NULL in case of error. -- 1.7.0.rc1.199.g9253a

2 1

[libvirt] Suggested schedule for next release
by Daniel Veillard 05 Feb '10

05 Feb '10

Considering the amount of changes accumulating in a month, I suggest to continue with the end-of-month release cycle, which means basically that we would push features to head until Friday 19th and push the next release on the 26. This is a short cycle since Feb is a short month and we skipped a bit on 0.7.6 release, but I have no doubt we will have enough substance :-) There is a number of patches alredy lining up, the new APIs from Jim Fehlig, Dan Berrange clock sync patches, the macvlan patches, and the proposed snapshotting APIs (if we actually end up adding snapshotting I think next release would deserve being named 0.8.0 as this would be a major enhancement, otherwise 0.7.7), etc... Happy hacking ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

1 0

[libvirt] Fix wrong nodeinfo->mhz when cpufreq is enabled
by Thomas Treutner 05 Feb '10

05 Feb '10

Hi, I've written a little patch to fix wrong nodeinfo->mhz when the Linux kernel module cpufreq and a typical governor like ondemand are loaded. nodeinfo->mhz is then too low as libvirt just reads /proc/cpuinfo, entry "cpu MHz". This patch reads /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq if existing and corrects nodeinfo->mhz if the value found is higher. Using cpu0 is a crude hack but as discussed on IRC, considering different governors/maximum frequencies per cpu/core would require changing the nodeinfo struct, which would break the API. Some more info: https://bugzilla.redhat.com/show_bug.cgi?id=559762 Please have a careful look at my patch, my last C is quite some time ago. I tried to stick to linuxNodeInfoCPUPopulate, but f.e., checking for "&& *p == '\0'" after virStrToLong_ui doesn't work and I'm wondering why scaling_max_freq may not be terminated with by NUL? I also hope the file handling is correct, but please have a look. There is still some todo: Some logging would be helpful, maybe one of you could point out which function best to use? This is my first patch, so hopefully it follows in the next mail ;-) kr, tom

2 2

[libvirt] [PATCH] virt-pki-validate contains unexpanded SYSCONFDIR variable
by Doug Goldstein 05 Feb '10

05 Feb '10

virt-pki-validate contains an unexpanded SYSCONFDIR variable which causes it not to function at all. --- tools/virt-pki-validate.in | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/tools/virt-pki-validate.in b/tools/virt-pki-validate.in index a428a96..3e8c642 100755 --- a/tools/virt-pki-validate.in +++ b/tools/virt-pki-validate.in @@ -25,7 +25,7 @@ echo Found $CERTOOL # # Check the directory structure # -PKI="$(SYSCONFDIR)/pki" +PKI="@SYSCONFDIR@/pki" if [ ! -d $PKI ] then echo the $PKI directory is missing, it is usually -- 1.6.6.1

3 2

[libvirt] [PATCH] esx: Remove unnecessary casts
by Matthias Bolte 05 Feb '10

05 Feb '10

--- src/esx/esx_driver.c | 74 +++++++++++++++++++++++++------------------------- 1 files changed, 37 insertions(+), 37 deletions(-) diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c index fc254c6..fc5a50e 100644 --- a/src/esx/esx_driver.c +++ b/src/esx/esx_driver.c @@ -558,7 +558,7 @@ esxOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags ATTRIBUTE_UNUSED) static int esxClose(virConnectPtr conn) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_EnsureSession(priv->host); @@ -645,7 +645,7 @@ esxSupportsVMotion(esxPrivate *priv) static int esxSupportsFeature(virConnectPtr conn, int feature) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_Boolean supportsVMotion = esxVI_Boolean_Undefined; switch (feature) { @@ -678,7 +678,7 @@ esxGetType(virConnectPtr conn ATTRIBUTE_UNUSED) static int esxGetVersion(virConnectPtr conn, unsigned long *version) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; char *temp; unsigned int major, minor, release; @@ -716,7 +716,7 @@ esxGetVersion(virConnectPtr conn, unsigned long *version) static char * esxGetHostname(virConnectPtr conn) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *hostSystem = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -805,7 +805,7 @@ static int esxNodeGetInfo(virConnectPtr conn, virNodeInfoPtr nodeinfo) { int result = 0; - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *hostSystem = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -958,7 +958,7 @@ esxNodeGetInfo(virConnectPtr conn, virNodeInfoPtr nodeinfo) static char * esxGetCapabilities(virConnectPtr conn) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; char *xml = virCapabilitiesFormatXML(priv->caps); if (xml == NULL) { @@ -974,7 +974,7 @@ esxGetCapabilities(virConnectPtr conn) static int esxListDomains(virConnectPtr conn, int *ids, int maxids) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_ObjectContent *virtualMachineList = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; @@ -1046,7 +1046,7 @@ esxListDomains(virConnectPtr conn, int *ids, int maxids) static int esxNumberOfDomains(virConnectPtr conn) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; if (esxVI_EnsureSession(priv->host) < 0) { return -1; @@ -1062,7 +1062,7 @@ esxNumberOfDomains(virConnectPtr conn) static virDomainPtr esxDomainLookupByID(virConnectPtr conn, int id) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachineList = NULL; esxVI_ObjectContent *virtualMachine = NULL; @@ -1145,7 +1145,7 @@ esxDomainLookupByID(virConnectPtr conn, int id) static virDomainPtr esxDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_VirtualMachinePowerState powerState; @@ -1199,7 +1199,7 @@ esxDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid) static virDomainPtr esxDomainLookupByName(virConnectPtr conn, const char *name) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachineList = NULL; esxVI_ObjectContent *virtualMachine = NULL; @@ -1283,7 +1283,7 @@ static int esxDomainSuspend(virDomainPtr domain) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; esxVI_VirtualMachinePowerState powerState; @@ -1338,7 +1338,7 @@ static int esxDomainResume(virDomainPtr domain) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; esxVI_VirtualMachinePowerState powerState; @@ -1393,7 +1393,7 @@ static int esxDomainShutdown(virDomainPtr domain) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; esxVI_VirtualMachinePowerState powerState; @@ -1438,7 +1438,7 @@ static int esxDomainReboot(virDomainPtr domain, unsigned int flags ATTRIBUTE_UNUSED) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; esxVI_VirtualMachinePowerState powerState; @@ -1483,7 +1483,7 @@ static int esxDomainDestroy(virDomainPtr domain) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_Context *ctx = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; @@ -1559,7 +1559,7 @@ esxDomainGetOSType(virDomainPtr domain ATTRIBUTE_UNUSED) static unsigned long esxDomainGetMaxMemory(virDomainPtr domain) { - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -1616,7 +1616,7 @@ static int esxDomainSetMaxMemory(virDomainPtr domain, unsigned long memory) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_VirtualMachineConfigSpec *spec = NULL; esxVI_ManagedObjectReference *task = NULL; @@ -1669,7 +1669,7 @@ static int esxDomainSetMemory(virDomainPtr domain, unsigned long memory) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_VirtualMachineConfigSpec *spec = NULL; esxVI_ManagedObjectReference *task = NULL; @@ -1723,7 +1723,7 @@ static int esxDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -1978,7 +1978,7 @@ static int esxDomainSetVcpus(virDomainPtr domain, unsigned int nvcpus) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; int maxVcpus; esxVI_ObjectContent *virtualMachine = NULL; esxVI_VirtualMachineConfigSpec *spec = NULL; @@ -2050,7 +2050,7 @@ esxDomainSetVcpus(virDomainPtr domain, unsigned int nvcpus) static int esxDomainGetMaxVcpus(virDomainPtr domain) { - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *hostSystem = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -2109,7 +2109,7 @@ esxDomainGetMaxVcpus(virDomainPtr domain) static char * esxDomainDumpXML(virDomainPtr domain, int flags) { - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -2211,7 +2211,7 @@ esxDomainXMLFromNative(virConnectPtr conn, const char *nativeFormat, const char *nativeConfig, unsigned int flags ATTRIBUTE_UNUSED) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; virDomainDefPtr def = NULL; char *xml = NULL; @@ -2240,7 +2240,7 @@ esxDomainXMLToNative(virConnectPtr conn, const char *nativeFormat, const char *domainXml, unsigned int flags ATTRIBUTE_UNUSED) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; virDomainDefPtr def = NULL; char *vmx = NULL; @@ -2268,7 +2268,7 @@ esxDomainXMLToNative(virConnectPtr conn, const char *nativeFormat, static int esxListDefinedDomains(virConnectPtr conn, char **const names, int maxnames) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachineList = NULL; esxVI_ObjectContent *virtualMachine = NULL; @@ -2358,7 +2358,7 @@ esxListDefinedDomains(virConnectPtr conn, char **const names, int maxnames) static int esxNumberOfDefinedDomains(virConnectPtr conn) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; if (esxVI_EnsureSession(priv->host) < 0) { return -1; @@ -2375,7 +2375,7 @@ static int esxDomainCreate(virDomainPtr domain) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; esxVI_VirtualMachinePowerState powerState; @@ -2430,7 +2430,7 @@ esxDomainCreate(virDomainPtr domain) static virDomainPtr esxDomainDefineXML(virConnectPtr conn, const char *xml ATTRIBUTE_UNUSED) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; virDomainDefPtr def = NULL; char *vmx = NULL; int i; @@ -2638,7 +2638,7 @@ static int esxDomainUndefine(virDomainPtr domain) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_Context *ctx = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; @@ -2740,7 +2740,7 @@ esxDomainGetSchedulerParameters(virDomainPtr domain, virSchedParameterPtr params, int *nparams) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *virtualMachine = NULL; esxVI_DynamicProperty *dynamicProperty = NULL; @@ -2869,7 +2869,7 @@ esxDomainSetSchedulerParameters(virDomainPtr domain, virSchedParameterPtr params, int nparams) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_VirtualMachineConfigSpec *spec = NULL; esxVI_SharesInfo *sharesInfo = NULL; @@ -3040,7 +3040,7 @@ esxDomainMigratePerform(virDomainPtr domain, unsigned long bandwidth ATTRIBUTE_UNUSED) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; xmlURIPtr xmlUri = NULL; char hostIpAddress[NI_MAXHOST] = ""; esxVI_ObjectContent *virtualMachine = NULL; @@ -3171,7 +3171,7 @@ static unsigned long long esxNodeGetFreeMemory(virConnectPtr conn) { unsigned long long result = 0; - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; esxVI_String *propertyNameList = NULL; esxVI_ObjectContent *hostSystem = NULL; esxVI_ManagedObjectReference *managedObjectReference = NULL; @@ -3249,7 +3249,7 @@ esxNodeGetFreeMemory(virConnectPtr conn) static int esxIsEncrypted(virConnectPtr conn) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; if (STRCASEEQ(priv->transport, "https")) { return 1; @@ -3263,7 +3263,7 @@ esxIsEncrypted(virConnectPtr conn) static int esxIsSecure(virConnectPtr conn) { - esxPrivate *priv = (esxPrivate *)conn->privateData; + esxPrivate *priv = conn->privateData; if (STRCASEEQ(priv->transport, "https")) { return 1; @@ -3278,7 +3278,7 @@ static int esxDomainIsActive(virDomainPtr domain) { int result = 0; - esxPrivate *priv = (esxPrivate *)domain->conn->privateData; + esxPrivate *priv = domain->conn->privateData; esxVI_ObjectContent *virtualMachine = NULL; esxVI_String *propertyNameList = NULL; esxVI_VirtualMachinePowerState powerState; -- 1.6.3.3

1 0

[libvirt] [PATCH] cgroup.c: avoid unconditional leaks
by Jim Meyering 05 Feb '10

05 Feb '10

Here's output from "git format-patch -U19 --stdout -1", so you see the context: >From 47ea9beecf93a796e606b4d906424c05e7f6c9bb Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 4 Feb 2010 11:14:03 +0100 Subject: [PATCH] cgroup.c: avoid unconditional leaks * src/util/cgroup.c (virCgroupCpuSetInherit) [HAVE_MNTENT_H]: Don't leak CPU-set inheritance value strings. --- src/util/cgroup.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/util/cgroup.c b/src/util/cgroup.c index c80cf50..e6f0270 100644 --- a/src/util/cgroup.c +++ b/src/util/cgroup.c @@ -416,38 +416,39 @@ static int virCgroupCpuSetInherit(virCgroupPtr parent, virCgroupPtr group) VIR_DEBUG("Setting up inheritance %s -> %s", parent->path, group->path); for (i = 0; i < ARRAY_CARDINALITY(inherit_values) ; i++) { char *value; rc = virCgroupGetValueStr(parent, VIR_CGROUP_CONTROLLER_CPUSET, inherit_values[i], &value); if (rc != 0) { VIR_ERROR("Failed to get %s %d", inherit_values[i], rc); break; } VIR_DEBUG("Inherit %s = %s", inherit_values[i], value); rc = virCgroupSetValueStr(group, VIR_CGROUP_CONTROLLER_CPUSET, inherit_values[i], value); + VIR_FREE(value); if (rc != 0) { VIR_ERROR("Failed to set %s %d", inherit_values[i], rc); break; } } return rc; } static int virCgroupMakeGroup(virCgroupPtr parent, virCgroupPtr group, int create) { int i; int rc = 0; VIR_DEBUG("Make group %s", group->path); for (i = 0 ; i < VIR_CGROUP_CONTROLLER_LAST ; i++) { char *path = NULL; -- 1.7.0.rc1.193.ge8618

4 5

[libvirt] [PATCH] virDomainChrDefParseXML: don't leak upon invalid input
by Jim Meyering 04 Feb '10

04 Feb '10

>From 6d0e0e571bba7792df9dacb898849708d5d3b425 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 4 Feb 2010 12:49:53 +0100 Subject: [PATCH] virDomainChrDefParseXML: don't leak upon invalid input * src/conf/domain_conf.c (virDomainChrDefParseXML): Don't leak a virDomainChrDef buffer upon "unknown target type for char device" error. --- src/conf/domain_conf.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 766993c..306776d 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -1947,6 +1947,7 @@ virDomainChrDefParseXML(virConnectPtr conn, virDomainReportError(conn, VIR_ERR_XML_ERROR, _("unknown target type for character device: %s"), nodeName); + VIR_FREE(def); return NULL; } def->targetType = VIR_DOMAIN_CHR_TARGET_TYPE_NULL; -- 1.7.0.rc1.199.g9253a

2 1

[libvirt] [PATCH] virExecWithHook: avoid leak on OOM error path
by Jim Meyering 04 Feb '10

04 Feb '10

>From ab102cf853e3b46bf10cf0faafa643a352ed8888 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 4 Feb 2010 12:25:34 +0100 Subject: [PATCH] virExecWithHook: avoid leak on OOM error path * src/util/util.c (virExecWithHook): Free argv_str string before returning upon failure to allocate space for environment. --- src/util/util.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/util/util.c b/src/util/util.c index 7e0cd50..a01fc45 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -625,18 +625,19 @@ virExecWithHook(virConnectPtr conn, char *envp_str; if ((argv_str = virArgvToString(argv)) == NULL) { virReportOOMError(conn); return -1; } if (envp) { if ((envp_str = virArgvToString(envp)) == NULL) { + VIR_FREE(argv_str); virReportOOMError(conn); return -1; } VIR_DEBUG("%s %s", envp_str, argv_str); VIR_FREE(envp_str); } else { VIR_DEBUG0(argv_str); } VIR_FREE(argv_str); -- 1.7.0.rc1.199.g9253a

2 1

[libvirt] [PATCH] cgroup.c: don't leak mem+FD upon OOM
by Jim Meyering 04 Feb '10

04 Feb '10

Here's the patch: (note, no need to test for mapping == NULL in the no_memory block) >From 91dbe896fff64783df1c68769a57a267441143ae Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 4 Feb 2010 11:22:20 +0100 Subject: [PATCH] cgroup.c: don't leak mem+FD upon OOM * src/util/cgroup.c (virCgroupDetectPlacement): Close the mapping FILE* also upon error. --- src/util/cgroup.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/util/cgroup.c b/src/util/cgroup.c index e6f0270..4446c7f 100644 --- a/src/util/cgroup.c +++ b/src/util/cgroup.c @@ -183,6 +183,7 @@ static int virCgroupDetectPlacement(virCgroupPtr group) return 0; no_memory: + fclose(mapping); return -ENOMEM; } -- 1.7.0.rc1.193.ge8618 Here's the (fixed) function: /* * Process /proc/self/cgroup figuring out what cgroup * sub-path the current process is assigned to. ie not * neccessarily in the root */ static int virCgroupDetectPlacement(virCgroupPtr group) { int i; FILE *mapping = NULL; char line[1024]; mapping = fopen("/proc/self/cgroup", "r"); if (mapping == NULL) { VIR_ERROR0("Unable to open /proc/self/cgroup"); return -ENOENT; } while (fgets(line, sizeof(line), mapping) != NULL) { char *controllers = strchr(line, ':'); char *path = controllers ? strchr(controllers+1, ':') : NULL; char *nl = path ? strchr(path, '\n') : NULL; if (!controllers || !path) continue; if (nl) *nl = '\0'; *path = '\0'; controllers++; path++; for (i = 0 ; i < VIR_CGROUP_CONTROLLER_LAST ; i++) { const char *typestr = virCgroupControllerTypeToString(i); int typelen = strlen(typestr); char *tmp = controllers; while (tmp) { char *next = strchr(tmp, ','); int len; if (next) { len = next-tmp; next++; } else { len = strlen(tmp); } if (typelen == len && STREQLEN(typestr, tmp, len) && !(group->controllers[i].placement = strdup(STREQ(path, "/") ? "" : path))) goto no_memory; tmp = next; } } } fclose(mapping); return 0; no_memory: fclose(mapping); return -ENOMEM; }

2 1

[libvirt] [PATCH 5/5] macvtap support for libvirt -- schema extensions
by Stefan Berger 04 Feb '10

04 Feb '10

This part extends the domain xml schema to support the new interface type 'direct'. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>

1 0

[libvirt] [PATCH 3/5] macvtap support for libvirt -- qemu support
by Stefan Berger 04 Feb '10

04 Feb '10

This part adds support for qemu making a macvtap tap device available via file descriptor passed to qemu command line. This also attempts to tear down the macvtap device when a VM terminates. This includes support for attachment and detachment to/from running VM. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>

1 0

[libvirt] [PATCH 1/5] macvtap support for libvirt -- build support
by Stefan Berger 04 Feb '10

04 Feb '10

This patch adds build support for libvirt checking for certain contents of /usr/include/linux/if_link.h to see whether macvtap support is compilable on that system. One can disable macvtap support in libvirt via --without-macvtap passed to configure. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com>

1 0

[libvirt] [PATCH 0/5] macvtap support for Qemu/KVM VMs via libvirt
by Stefan Berger 04 Feb '10

04 Feb '10

Hello! The following patches provide support for making the macvtap networking device type available to Qemu/KVM VMs. The patches rely on the macvtap driver that just became available through the Linux net-next tree (fixes still may be necessary) and make the device available to Qemu/KVM via a tap file descriptor similar to a 'regular' tap device. Following up on previous discussions, the libvirt patches allow using the following XML in the domain description to enable qemu network connectivity via this type of device: <interface type='direct'> <source dev='eth1' mode='vepa'/> <model type='virtio'/> </interface> The above XML indicates that eth1 is the Ethernet interface to link the macvtap device to and communicate to the network. As a consequence, libvirt will create an instance of a macvtap device, assign it the same MAC address as the VM's interface has and open a file descriptor of the associated character device /dev/tap%d and pass it via command line to Qemu/kvm. In the above XML the mode can be chosen as 'vepa', 'private' or 'bridge' and is by default set to 'vepa'(by the driver) if omitted. Attachment and detachment of macvtap to/from a running VM also works. Regards, Stefan

1 0

[libvirt] Release of libvirt-0.7.6
by Daniel Veillard 04 Feb '10

04 Feb '10

Is finally out with the set of last minute fixes :-) Available as usual from: ftp://libvirt.org/libvirt/ The rate of change is really not slowing down, a awful lot of improvements and changes are in. Some things I listed in improvement might be considered full new features like support for latest versions of Xen and ESX. Jim Meyering also went though a lot of automated bug reports to fill up various holes in the code: Features: - Implement support for multi IQN (David Allan) - Implement CPU topology support for QEMU driver (Jiri Denemark) - Use QEmu new device adressing when possible (Daniel P. Berrange) - Implement SCSI controller hotplug/unplug for QEMU (Wolfgang Mauerer) Documentation: - Add missing function parameter documentation (Matthias Bolte) - Add docs about new mailing list (Daniel P. Berrange) - Document cpu-compare command in virsh man page (Jiri Denemark) - Document cpu elements in capabilities and domain XML (Jiri Denemark) - docs: Remove outdated information about remote limitations (Matthias Bolte) - documentation improvements (David Jorm) - Minor fixes for API extension doc (Jim Fehlig) - cpu_shares parameter limit documented (David Jorm) - Document the domain XML cache attribute for disk devices (Matthias Bolte) - Replace old CVS references with GIT (Matthias Bolte) Portability: - portability to non-glibc: don't use realpath(..., NULL) (Jim Meyering) - Add some missing include files which break build in certain platforms (Daniel P. Berrange) - Remove AppArmor compile warnings (Jamie Strandboge) - Fix compilation of virt-aa-helper.c (Matthias Bolte) - Fix linkage of virt-aa-helper to libgnu.a (Matthias Bolte) Bug Fixes: - Fix restore of QEMU guests with PCI device reservation (Daniel P. Berrange) - Another fork() log locking cleanup in file creation (Laine Stump) - Fix log locking problem when using fork() in the library (Cole Robinson) - Fix locking for udev device add/remove (David Allan) - interface_conf.c: don't use a negative value as allocation size (Jim Meyering) - virStoragePoolSourceListNewSource: avoid unconditional leak (Jim Meyering) - xs_internal.c: don't use a negative value as allocation size (Jim Meyering) - Ensure QEMU DAC security driver is activated at all times (Daniel P. Berrange) - udev: Don't let strtoul parse USB busnum and devnum as octal (Matthias Bolte) - json.c: avoid an unconditional leak from most qemuMonitorJSON* functions (Jim Meyering) - Fix PCI host reattach on domain detach. (Chris Lalancette) - Clarify controllers -device string in QEMU driver (Matthew Booth) - util.c (virGetUserEnt): don't use a negative value as allocation size (Jim Meyering) - cpu_x86.c: avoid NULL-deref for invalid arguments (Jim Meyering) - Fix a crash when restarting libvirtd. (Chris Lalancette) - qemuMonitorTextAttachDrive: avoid two leaks (Jim Meyering) - usbGetDevice: don't leak a "usbDevice" buffer on failure path (Jim Meyering) - qemuMonitorTextGetMemoryStats: plug a leak on an error path (Jim Meyering) - usbFindBusByVendor: don't leak a DIR buffer and FD (Jim Meyering) - Fix libvirtd restart for domains with PCI passthrough devices (Chris Lalancette) - qemu: Fix race between device rebind and kvm cleanup (Chris Lalancette) - Fix device assignment with root devices (Chris Lalancette) - Corrected log level of WWN path message (David Allan) - Fix an error when looking for devices in syspath (Daniel Veillard) - Fix off-by-1 in SCSI drive hotplug (Daniel P. Berrange) - Fix leak in hotplug code in QEMU driver (Daniel P. Berrange) - Fix security driver calls in hotplug cleanup paths (Daniel P. Berrange) - Add missing call to re-attach host devices if VM startup fails (Daniel P. Berrange) - Pull initial disk labelling out into libvirtd instead of exec hook (Daniel P. Berrange) - Fix leak of allocated security label (Daniel P. Berrange) - Create storage pool directories with proper uid/gid/mode (Laine Stump) - Create storage volumes directly with desired uid/gid (Laine Stump) - Unset copied environment variables in qemuxml2argvtest (Matthias Bolte) - qemu: Don't allocate zero bytes (Matthias Bolte) - node_device_linux_sysfs.c: avoid opendir/fd leak on error path (Jim Meyering) - domain_conf.c: avoid a leak and the need for "cleanup:" block (Jim Meyering) - Fix QEMU driver custom domain status XML extensions (Daniel P. Berrange) - xen_driver: don't leak a parsed-config buffer (Jim Meyering) - storage_conf: plug a leak on OOM error path (Jim Meyering) - Tests for ACS in PCIe switches (Jiri Denemark) - storage_backend_fs.c: do not ignore probe failure (Jim Meyering) - Avoid free'ing a constant string in chardev lookup code (Daniel P. Berrange) - Fix build of Xen proxy daemon (Daniel P. Berrange) - xen: do not report a write-to-Xen-daemon failure as a read failure (Jim Meyering) - daemon: Don't blindly unregister domain events (Cole Robinson) - node_device: udev: Fix memory leak (Cole Robinson) - Fix migration in xend driver (Jim Fehlig) - Ensure error handling callback functions are called from safe context (Daniel P. Berrange) - qemu: Fix a memory leak in qemudExtractTTYPath (Matthias Bolte) - Fix UUID random generator to use /dev/random (Laine Stump) - let "configure --disable-shared" work once again (Jim Meyering) - Qemu: ask for memory preallocation with large pages (Daniel Veillard) - network/bridge_driver.c: avoid potential NULL-dereference (Jim Meyering) - Don't free an uninitalized pointer in update_driver_name() (Matthias Bolte) - xend_internal: don't let invalid input provoke NULL dereference (Jim Meyering) - Don't update vol details after build (David Allan) - vbox_tmpl.c: don't leak a domain pointer upon failure to create (Jim Meyering) - vbox_tmpl.c: avoid NULL deref upon vboxDomainCreateXML failure (Jim Meyering) - qemu_driver.c: avoid NULL dereference upon disk-op failure (Jim Meyering) - openvz_conf.c: don't dereference NULL upon failure (Jim Meyering) - Distribute vmx2xml and xml2vmx test data files (Matthias Bolte) Improvements: - Tweak USB hostdevice XML handling (Daniel P. Berrange) - Fix QEMU hotplug device alias assignment (Daniel P. Berrange) - Disable QEMU monitor IO debugging by default (Daniel P. Berrange) - Re-arrange QEMU device alias assignment code (Daniel P. Berrange) - Remove direct storage of hostnet_name & vlan (Daniel P. Berrange) - Remove use of -netdev arg with QEMU (Daniel P. Berrange) - Assign PCI addresses before hotplugging devices (Daniel P. Berrange) - Rewrite way QEMU PCI addresses are allocated (Daniel P. Berrange) - Introduce generic virDomainDeviceInfo iterator function (Daniel P. Berrange) - Make hotplug use new device_add where possible (Daniel P. Berrange) - Introduce internal QEMU monitor APIs for drive + device hotadd (Daniel P. Berrange) - Split out QEMU code for building PCI/USB hostdev arg values (Daniel P. Berrange) - Standard internal API syntax for building QEMU command line arguments (Daniel P. Berrange) - Log flags in virConnectCompareCPU (Jiri Denemark) - Look in /usr/libexec for the qemu-kvm binary. (Chris Lalancette) - Support Xen 4.0 sysctl version 7 (Jim Fehlig) - Add missing sata controller type to domain.rng (Matthew Booth) - udev: Set the state driver name (Matthias Bolte) - udev: Remove event handle on shutdown (Matthias Bolte) - esx: Output error details from libcurl (Matthias Bolte) - qemu: Search binaries in PATH instead of hardcoding /usr/bin (Matthias Bolte) - Implement QMP support for extracting CPU thread ID (Daniel P. Berrange) - Misc fixes to QMP monitor support for QEMU (Daniel P. Berrange) - Fix setup of compatability serial devices from console device (Daniel P. Berrange) - Start modernizing configure (Eric Blake) - Add a rule to check for uses of readlink. (Chris Lalancette) - Add virConnectGetVersion Python API (Taizo ITO) - domMemoryStats / qemu: Fix parsing of unknown stats (Adam Litke) - Allow surrounding whitespace in uuid (Dan Kenigsberg) - Add configuration option to turn off dynamic permissions management (Daniel P. Berrange) - Switch QEMU driver over to use the DAC security driver (Daniel P. Berrange) - Introduce a new DAC security driver for QEMU (Daniel P. Berrange) - Introduce a stacked security driver impl for QEMU (Daniel P. Berrange) - Make security drivers responsible for checking dynamic vs static labelling (Daniel P. Berrange) - New utility functions virFileCreate and virDirCreate (Laine Stump) - Add virRunWithHook util function (Laine Stump) - Update interface.rng and xml test files to match netcf 0.1.5 (Laine Stump) - Support bond interfaces attached to bridges in interface xml. (Laine Stump) - Allow empty bridges in interface xml. (Laine Stump) - Support delay property in interface bridge xml. (Laine Stump) - Use pciDeviceIsAssignable in qemu driver (Jiri Denemark) - Allow for CPU topology specification without model (Jiri Denemark) - Add debug messages for CPU incompatibility (Jiri Denemark) - Take disabled/forced CPU features into account (Jiri Denemark) - Enhance qemuParseCommandLineKeywords (Jiri Denemark) - Convert VirtIO balloon over to -device syntax (Daniel P. Berrange) - uto-assign PCI addresses (Daniel P. Berrange) - Pass -vga none if no video card specified (Daniel P. Berrange) - Add support for explicit -sdl flag to QEMU (Daniel P. Berrange) - Assign device aliases for all devices at startup (Daniel P. Berrange) - Add device info to serial, parallel, channel, input & fs devices (Daniel P. Berrange) - Introduce device aliases (Daniel P. Berrange) - Clear assigned PCI devices at shutdown (Daniel P. Berrange) - Auto-add disk controllers based on defined disks (Daniel P. Berrange) - Remove restriction on duplicated sound devices in parser (Daniel P. Berrange) - Detect PCI addresses at QEMU startup (Daniel P. Berrange) - Properly support SCSI drive hotplug (Daniel P. Berrange) - build: update gnulib submodule to latest (Jim Meyering) - Use closest CPU model when decoding from CPUID (Jiri Denemark) - Change detection of xen so that it's actually automatic rather than forced. (Diego Elio Pettenò) - Standardise ./configure --help options reporting. (Diego Elio Pettenò) - qemu: Use log output for pty assignment if 'info chardev' is unavailable (Matthias Bolte) - esx: Add VNC support (Matthias Bolte) - esx: Make the domain part of the hostname optional (Matthias Bolte) - esx: Add stubs for secondary driver types (Matthias Bolte) - Specify bus/unit instead of index for disks with QEMU (Daniel P. Berrange) - Split code for building QEMU -drive arg in separate method (Daniel P. Berrange) - Convert monitor over to use virDomainDeviceAddress (Daniel P. Berrange) - Add new domain device: "controller" (Wolfgang Mauerer) - Set default disk controller/bus/unit props (Daniel P. Berrange) - Add address info to sound, video and watchdog devices (Daniel P. Berrange) - Extend the virDomainDeviceAddress struture to allow disk controller addresses (Daniel P. Berrange) - Introduce a standardized data structure for device addresses (Daniel P. Berrange) - util: Make sure virExec hook failures are raised (Cole Robinson) - Implement path lookup for USB by vendor:product (Cole Robinson) - events: Report errors on failure (Cole Robinson) - node_device: udev: Enumerate floppy devices (Cole Robinson) - node_device: udev: Use base 16 for product/vendor (Cole Robinson) - libvirt.c: Preserve MigratePerform failure (Cole Robinson) - qemu: migrate: Save MigratePerform error in MigrateFinish. (Cole Robinson) - virterror: Add virSetError (Cole Robinson) - Also look for dmi information in /sys/class (Guido Günther) - proxy_internal.c: mark "request" parameter as nonnull (Jim Meyering) - esx: Dump the raw response in case of an SOAP fault (Matthias Bolte) - esx: Warn if the ESX server is in maintenance mode (Matthias Bolte) - xen hypervisor: xen domctl version 6 (Jim Fehlig) - virsh: Add persistent history using libreadline (Matthias Bolte) - esx: Fix 'vpx' MAC address range and allow arbitrary MAC addresses (Matthias Bolte) - esx: Fix deserialization for VI API calls CancelTask and UnregisterVM (Matthias Bolte) - esx: Fix and improve the libcurl debug callback (Matthias Bolte) - esx: Also allow virtualHW version 4 for ESX 4.0 (Matthias Bolte) - qemu: Always enable the virtio balloon driver (Adam Litke) - Disable building of static Python module (Diego Elio Pettenò) - Fix parsing of 'info chardev' line endings (Matthew Booth) Cleanups: - xen_hypervisor.c: remove all "domain == NULL" tests, ... (Jim Meyering) - xen_hypervisor.c: avoid NULL deref for NULL domain argument (Jim Meyering) - libvirtd.c: avoid closing a negative socket file descriptor (Jim Meyering) - storage_backend.c: avoid closing a negative file descriptor (Jim Meyering) - avoid a probable EINVAL from lseek (Jim Meyering) - util.c (two more): don't use a negative value as allocation size (Jim Meyering) - avoid format-related warnings (Jim Meyering) - maint: avoid excess parens in STREQ (Eric Blake) - Move models/nmodels mismatch checking one level up (Jiri Denemark) - Fix up a comment in virHashUpdateEntry (Chris Lalancette) - maint: fix spelling error in hacking (Eric Blake) - pci.c: correct an erroneous expression (Jim Meyering) - Remove undefined symbols from libvirt_private.syms (Matthias Bolte) - Don't call disabled timer callbacks in event-test.c (Matthias Bolte) - hostusb: closedir only if non-NULL; rename labels: s/error/cleanup/ (Jim Meyering) - Cleanup of large buffer on stack in virFileMakePath (Laine Stump) - esx: Stop passing around virConnectPtr for error reporting (Matthias Bolte) - Revert "Fix libvirtd restart for domains with PCI passthrough devices" (Chris Lalancette) - Fix two instances of misspelled 'pseudo' (Chris Lalancette) - Use virFileResolveLink instead of readlink in AppArmor (Chris Lalancette) - Fix a compile warning in parthelper.c (Chris Lalancette) - Remove unused PROC_MOUNT_BUF_LEN #define (Chris Lalancette) - fix "make distcheck" failure (Jim Meyering) - avoid format-related warnings (Jim Meyering) - Refactor setup & cleanup of security labels in security driver (Daniel P. Berrange) - Let make fail when XHTML validation fails (Jiri Denemark) - Fix uses of virFileMakePath (Laine Stump) - remove unnecessary closedir call (Jim Meyering) - Make all bitfields unsigned ints to avoid unexpected values in casts (Daniel P. Berrange) - logging: confirm that we want to ignore a write error (Jim Meyering) - Remove superfluous new lines from messages (Jiri Denemark) - vbox_tmpl.c: remove useless array-is-non-NULL comparisons (Jim Meyering) - lxc_driver: remove useless comparison (Jim Meyering) - gnulib added a new syntax-check test: use $(VAR), not @VAR@ (Jim Meyering) - storage_backend.h: include required headers (Jim Meyering) - esx_vi_types.c: include required headers (Jim Meyering) - vbox: include required headers (Jim Meyering) - cpu_x86_data.h: include required header (Jim Meyering) - util.c: include required header, no longer masked by gnulib (Jim Meyering) - Fix validation of news.html (Matthias Bolte) - Remove obsolete comment in QEMU JSON code (Daniel P. Berrange) - Make test suite output less verbose (Daniel P. Berrange) - daemon: Fix various error reporting issues (Cole Robinson) - util: Remove logging handlers in virExec (Cole Robinson) - Commit bootstrap .gitignore additions (Cole Robinson) - qemu: Disable errors in qemudShutdownVMDaemon (Cole Robinson) - avoid another "make distcheck" failure (Jim Meyering) - avoid newly-introduced test failure (Jim Meyering) - don't test "res == NULL" after we've already dereferenced "res" (Jim Meyering) - fix 7 "make check" test failures in non-srcdir build (Jim Meyering) - virsh: Use VIR_FREE instead of free (Matthias Bolte) - esx: Don't warn about an empty URI path (Matthias Bolte) - qemu_driver.c: remove useless, warning-provoking test (Jim Meyering) So again, thanks everybody for your contributions ! Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

1 0

[libvirt] [PATCH] Avoid deadlock on logging mutex due to fork in virFileCreate/virDirCreate.
by Laine Stump 04 Feb '10

04 Feb '10

These functions have the same potential problem that Cole found in virExec - if the log mutex is currently held at the time of the fork, the child process' logging mutex will be locked, but nobody in the process to unlock it. If the child process tries to log anything, it will wait forever for this lock. The solution is to have the parent acquire the lock before fork, then both parent and child release the lock right after. Note that this patch requires Cole's patch to be applied first. --- src/util/util.c | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-) diff --git a/src/util/util.c b/src/util/util.c index 901c0d2..d8a2394 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1263,7 +1263,11 @@ int virFileCreate(const char *path, mode_t mode, * following dance avoids problems caused by root-squashing * NFS servers. */ - if ((pid = fork()) < 0) { + virLogLock(); + pid = fork(); + virLogUnlock(); + + if (pid < 0) { ret = errno; virReportSystemError(NULL, errno, _("cannot fork o create file '%s'"), path); @@ -1369,7 +1373,11 @@ int virDirCreate(const char *path, mode_t mode, return virDirCreateSimple(path, mode, uid, gid, flags); } - if ((pid = fork()) < 0) { + virLogLock(); + pid = fork(); + virLogUnlock(); + + if (pid < 0) { ret = errno; virReportSystemError(NULL, errno, _("cannot fork to create directory '%s'"), -- 1.6.6

2 2

[libvirt] [PATCH] Fix restore of QEMU guests with PCI device reservation
by Daniel P. Berrange 04 Feb '10

04 Feb '10

When restoring from a saved guest image, the XML would already contain the PCI slot ID of the IDE controller & video card. The attempt to explicitly reserve this upfront would thus fail everytime. * src/qemu/qemu_conf.c: Reserve IDE controller / video card slot at time of need, rather than upfront --- src/qemu/qemu_conf.c | 83 ++++++++++++++++++++++++++++++++++++++------------ 1 files changed, 63 insertions(+), 20 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 389db7b..3d83a8f 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1797,6 +1797,13 @@ static char *qemuPCIAddressAsString(virDomainDeviceInfoPtr dev) { char *addr; + if (dev->addr.pci.domain != 0 || + dev->addr.pci.bus != 0) { + qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", + _("Only PCI domain 0 and bus 0 are available")); + return NULL; + } + if (virAsprintf(&addr, "%d:%d:%d", dev->addr.pci.domain, dev->addr.pci.bus, @@ -1817,6 +1824,8 @@ static int qemuCollectPCIAddress(virDomainDefPtr def ATTRIBUTE_UNUSED, if (dev->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) { char *addr = qemuPCIAddressAsString(dev); + VIR_DEBUG("Remembering PCI addr %s", addr); + if (virHashAddEntry(addrs->used, addr, addr) < 0) { VIR_FREE(addr); return -1; @@ -1858,6 +1867,8 @@ int qemuDomainPCIAddressReserveAddr(qemuDomainPCIAddressSetPtr addrs, if (!addr) return -1; + VIR_DEBUG("Reserving PCI addr %s", addr); + if (virHashLookup(addrs->used, addr)) { qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR, _("unable to reserve PCI address %s"), addr); @@ -1870,6 +1881,9 @@ int qemuDomainPCIAddressReserveAddr(qemuDomainPCIAddressSetPtr addrs, return -1; } + if (dev->addr.pci.slot > addrs->nextslot) + addrs->nextslot = dev->addr.pci.slot + 1; + return 0; } @@ -1947,6 +1961,8 @@ int qemuDomainPCIAddressSetNextAddr(qemuDomainPCIAddressSetPtr addrs, addr = qemuPCIAddressAsString(&maybe); + VIR_DEBUG("Allocating PCI addr %s", addr); + if (virHashLookup(addrs->used, addr)) { VIR_FREE(addr); continue; @@ -1981,12 +1997,13 @@ qemuAssignDevicePCISlots(virDomainDefPtr def, qemuDomainPCIAddressSetPtr addrs) /* Host bridge */ if (qemuDomainPCIAddressReserveSlot(addrs, 0) < 0) goto error; - /* PIIX3 (ISA bridge, IDE controller, something else unknown, USB controller) */ - if (qemuDomainPCIAddressReserveSlot(addrs, 1) < 0) - goto error; - /* VGA */ - if (qemuDomainPCIAddressReserveSlot(addrs, 2) < 0) - goto error; + + /* PIIX3 (ISA bridge, IDE controller, something else unknown, USB controller) + * at slot 1....reserve it later + */ + + /* VGA at slot 2.... reserve it later */ + /* VirtIO Balloon */ if (qemuDomainPCIAddressReserveSlot(addrs, 3) < 0) goto error; @@ -2033,23 +2050,34 @@ qemuAssignDevicePCISlots(virDomainDefPtr def, qemuDomainPCIAddressSetPtr addrs) goto error; } for (i = 0; i < def->nvideos ; i++) { - if (def->videos[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) - continue; /* First VGA is hardcoded slot=2 */ if (i == 0) { - def->videos[i]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI; - def->videos[i]->info.addr.pci.domain = 0; - def->videos[i]->info.addr.pci.bus = 0; - def->videos[i]->info.addr.pci.slot = 2; - def->videos[i]->info.addr.pci.function = 0; + if (def->videos[i]->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) { + if (def->videos[i]->info.addr.pci.domain != 0 || + def->videos[i]->info.addr.pci.bus != 0 || + def->videos[i]->info.addr.pci.slot != 2 || + def->videos[i]->info.addr.pci.function != 0) { + qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", + _("Primary video card must have PCI address 0:0:2.0")); + goto error; + } + } else { + def->videos[i]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI; + def->videos[i]->info.addr.pci.domain = 0; + def->videos[i]->info.addr.pci.bus = 0; + def->videos[i]->info.addr.pci.slot = 2; + def->videos[i]->info.addr.pci.function = 0; + if (qemuDomainPCIAddressReserveSlot(addrs, 2) < 0) + goto error; + } } else { + if (def->videos[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) + continue; if (qemuDomainPCIAddressSetNextAddr(addrs, &def->videos[i]->info) < 0) goto error; } } for (i = 0; i < def->ncontrollers ; i++) { - if (def->controllers[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) - continue; /* FDC lives behind the ISA bridge */ if (def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_FDC) continue; @@ -2057,12 +2085,27 @@ qemuAssignDevicePCISlots(virDomainDefPtr def, qemuDomainPCIAddressSetPtr addrs) /* First IDE controller lives on the PIIX3 at slot=1, function=1 */ if (def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE && def->controllers[i]->idx == 0) { - def->controllers[i]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI; - def->controllers[i]->info.addr.pci.domain = 0; - def->controllers[i]->info.addr.pci.bus = 0; - def->controllers[i]->info.addr.pci.slot = 1; - def->controllers[i]->info.addr.pci.function = 1; + if (def->controllers[i]->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) { + if (def->videos[i]->info.addr.pci.domain != 0 || + def->videos[i]->info.addr.pci.bus != 0 || + def->videos[i]->info.addr.pci.slot != 2 || + def->videos[i]->info.addr.pci.function != 0) { + qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", + _("Primary IDE controller must have PCI address 0:0:1.1")); + goto error; + } + } else { + def->controllers[i]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI; + def->controllers[i]->info.addr.pci.domain = 0; + def->controllers[i]->info.addr.pci.bus = 0; + def->controllers[i]->info.addr.pci.slot = 1; + def->controllers[i]->info.addr.pci.function = 1; + if (qemuDomainPCIAddressReserveSlot(addrs, 1) < 0) + goto error; + } } else { + if (def->controllers[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) + continue; if (qemuDomainPCIAddressSetNextAddr(addrs, &def->controllers[i]->info) < 0) goto error; } -- 1.6.6

2 1

[libvirt] [PATCH] util: Remove logging handlers in virExec
by Cole Robinson 04 Feb '10

04 Feb '10

This allows debug statements and raised errors in hook functions to actually be logged somewhere (stderr). Users can enable debugging in the daemon and now see more info in /var/log/libvirt/... Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/util/util.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/src/util/util.c b/src/util/util.c index 44a4b2f..23d781d 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -334,6 +334,7 @@ __virExec(virConnectPtr conn, int pipeerr[2] = {-1,-1}; int childout = -1; int childerr = -1; + int logprio; sigset_t oldmask, newmask; struct sigaction sig_action; @@ -452,6 +453,11 @@ __virExec(virConnectPtr conn, of being seen / logged */ virSetErrorFunc(NULL, NULL); + /* Make sure any hook logging is sent to stderr */ + logprio = virLogGetDefaultPriority(); + virLogReset(); + virLogSetDefaultPriority(logprio); + /* Clear out all signal handlers from parent so nothing unexpected can happen in our child once we unblock signals */ -- 1.6.5.2

4 11

[libvirt] PATCH [0/1] Fix locking in udev node device backend
by David Allan 04 Feb '10

04 Feb '10

The initial udev node device backend implementation fails to take the lock on the node device driverState struct when adding and removing devices. The following patch adds the appropriate locking. Dave

2 3

[libvirt] [PATCH] virStoragePoolSourceListNewSource: avoid unconditional leak
by Jim Meyering 04 Feb '10

04 Feb '10

The buffer allocated by VIR_ALLOC here is never used, and the sole pointer to it is overwritten by this stmt: source = &list->sources[list->nsources++]; >From 52cf50def236ab61298ebbba39fcaf89d440f4ec Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 2 Feb 2010 19:59:14 +0100 Subject: [PATCH] virStoragePoolSourceListNewSource: avoid unconditional leak * src/conf/storage_conf.c (virStoragePoolSourceListNewSource): Remove an unused (and leaked) allocation. --- src/conf/storage_conf.c | 6 ------ 1 files changed, 0 insertions(+), 6 deletions(-) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index bd34f5e..62b8394 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -1692,17 +1692,11 @@ virStoragePoolSourcePtr virStoragePoolSourceListNewSource(virConnectPtr conn, virStoragePoolSourceListPtr list) { virStoragePoolSourcePtr source; - if (VIR_ALLOC(source) < 0) { - virReportOOMError(conn); - return NULL; - } - if (VIR_REALLOC_N(list->sources, list->nsources+1) < 0) { - VIR_FREE(source); virReportOOMError(conn); return NULL; } source = &list->sources[list->nsources++]; -- 1.7.0.rc1.149.g0b0b7

2 2

[libvirt] [PATCH] xs_internal.c: don't use a negative value as allocation size
by Jim Meyering 04 Feb '10

04 Feb '10

As the log message says... >From 6d7abfb983328fbe34bd4404d8fafda100e8098f Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 2 Feb 2010 12:22:17 +0100 Subject: [PATCH] xs_internal.c: don't use a negative value as allocation size * src/xen/xs_internal.c (xenStoreDomainIntroduced): Don't use -1 as an allocation size upon xenStoreNumOfDomains failure. (xenStoreDomainReleased): Likewise. --- src/xen/xs_internal.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/src/xen/xs_internal.c b/src/xen/xs_internal.c index 1ca3da0..620c482 100644 --- a/src/xen/xs_internal.c +++ b/src/xen/xs_internal.c @@ -1,9 +1,9 @@ /* * xs_internal.c: access to Xen Store * - * Copyright (C) 2006, 2009 Red Hat, Inc. + * Copyright (C) 2006, 2009-2010 Red Hat, Inc. * * See COPYING.LIB for the License of this software * * Daniel Veillard <veillard(a)redhat.com> */ @@ -1365,10 +1365,13 @@ int xenStoreDomainIntroduced(virConnectPtr conn, xenUnifiedPrivatePtr priv = opaque; retry: new_domain_cnt = xenStoreNumOfDomains(conn); + if (new_domain_cnt < 0) + return -1; + if( VIR_ALLOC_N(new_domids,new_domain_cnt) < 0 ) { virReportOOMError(NULL); return -1; } nread = xenStoreDoListDomains(conn, priv, new_domids, new_domain_cnt); @@ -1445,10 +1448,12 @@ int xenStoreDomainReleased(virConnectPtr conn, if(!priv->activeDomainList->count) return 0; retry: new_domain_cnt = xenStoreNumOfDomains(conn); + if (new_domain_cnt < 0) + return -1; if( VIR_ALLOC_N(new_domids,new_domain_cnt) < 0 ) { virReportOOMError(NULL); return -1; } -- 1.7.0.rc1.149.g0b0b7

2 1

[libvirt] [PATCH] interface_conf.c: don't use a negative value as allocation size
by Jim Meyering 04 Feb '10

04 Feb '10

Here's one way to solve this. Another would be to change the way virXPathNodeSet works, but there are several other uses of it. >From 75108240911a1ad943e0bde8ba9ade92ea216f60 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 2 Feb 2010 20:54:01 +0100 Subject: [PATCH] interface_conf.c: don't use a negative value as allocation size * src/conf/interface_conf.c (virInterfaceDefParseProtoIPv4): If virXPathNodeSet returns -1, indicate failure by returning -1 right away. (virInterfaceDefParseProtoIPv6): Likewise. --- src/conf/interface_conf.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/src/conf/interface_conf.c b/src/conf/interface_conf.c index 8a17ed6..510df81 100644 --- a/src/conf/interface_conf.c +++ b/src/conf/interface_conf.c @@ -1,9 +1,9 @@ /* * interface_conf.c: interfaces XML handling * - * Copyright (C) 2006-2009 Red Hat, Inc. + * Copyright (C) 2006-2010 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. @@ -318,10 +318,12 @@ virInterfaceDefParseProtoIPv4(virConnectPtr conn, virInterfaceProtocolDefPtr def if (ret != 0) return(ret); } nIpNodes = virXPathNodeSet(conn, "./ip", ctxt, &ipNodes); + if (nIpNodes < 0) + return -1; if (ipNodes == NULL) return 0; if (VIR_ALLOC_N(def->ips, nIpNodes) < 0) { virReportOOMError(conn); @@ -375,10 +377,12 @@ virInterfaceDefParseProtoIPv6(virConnectPtr conn, virInterfaceProtocolDefPtr def if (ret != 0) return(ret); } nIpNodes = virXPathNodeSet(conn, "./ip", ctxt, &ipNodes); + if (nIpNodes < 0) + return -1; if (ipNodes == NULL) return 0; if (VIR_ALLOC_N(def->ips, nIpNodes) < 0) { virReportOOMError(conn); -- 1.7.0.rc1.167.gdb08

2 1

[libvirt] JAVA .start() method
by Marc Gonzalez Mateo 03 Feb '10

03 Feb '10

Good morning, Testing the new java version (0.4.1) I've noticed that there's no .start() method to start a defined or shuted down domain. Are you working on it or is it a minor feature not to be considered? Thanks in advance, Marc Gonzalez Mateo marcg(a)ac.upc.edu Dept. Arquitectura de Computadors Universitat Politècnica de Catalunya

3 3

[libvirt] [PATCH 0/6] Add more options for clock sync
by Daniel P. Berrange 03 Feb '10

03 Feb '10

This series adds two new options for clock synchronization The two current options are: <clock offset='utc'/> <clock offset='localtime'/> This introduces a way to set a timezone for localtime <clock offset='localtime' timezone='Europe/Paris'/> And a way to set a completely arbitrary time, by giving the number of seconds offset from UTC. <clock offset='variable' adjustment='123456'/> It is open to debate whether we need to distinguish this last one via the extra string 'variable', or just add 'adjustment' as an optional attribute for the existing term 'utc'. Opinions welcome

1 6

[libvirt] [PATCH] xen_hypervisor.c: avoid NULL deref for NULL domain argument
by Jim Meyering 03 Feb '10

03 Feb '10

When "domain" is NULL, don't deref NULL. Instead, just return -1, as in many other functions in this file, and as this function did up until a month ago. An alternative (taken 3 times in this file) is to do this: virXenErrorFunc (NULL, VIR_ERR_INTERNAL_ERROR, __FUNCTION__, "domain or conn is NULL", 0); return -1; I could go either way. >From 177556167775b806a29bcb1af7ba4294d1909912 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 26 Jan 2010 20:17:07 +0100 Subject: [PATCH] xen_hypervisor.c: avoid NULL deref for NULL domain argument * src/xen/xen_hypervisor.c (xenHypervisorGetVcpus): Don't attempt to diagnose an unlikely NULL-domain or NULL-domain->conn error. --- src/xen/xen_hypervisor.c | 7 ++----- 1 files changed, 2 insertions(+), 5 deletions(-) diff --git a/src/xen/xen_hypervisor.c b/src/xen/xen_hypervisor.c index 6d8accc..0257be2 100644 --- a/src/xen/xen_hypervisor.c +++ b/src/xen/xen_hypervisor.c @@ -1,7 +1,7 @@ /* * xen_internal.c: direct access to Xen hypervisor level * - * Copyright (C) 2005, 2006, 2007, 2008, 2009 Red Hat, Inc. + * Copyright (C) 2005-2010 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -3475,11 +3475,8 @@ xenHypervisorGetVcpus(virDomainPtr domain, virVcpuInfoPtr info, int maxinfo, virVcpuInfoPtr ipt; int nbinfo, i; - if (domain == NULL || domain->conn == NULL) { - virXenErrorFunc (domain->conn, VIR_ERR_INVALID_ARG, __FUNCTION__, - "invalid argument", 0); + if (domain == NULL || domain->conn == NULL) return -1; - } priv = (xenUnifiedPrivatePtr) domain->conn->privateData; if (priv->handle < 0 || (domain->id < 0) || -- 1.7.0.rc0.140.gfbe7

2 4

[libvirt] libvirt: python bindings
by Sharadha Prabhakar (3P) 03 Feb '10

03 Feb '10

Hi, I'm writing XenServer APIs for libvirt and trying to test it on virt-Manager. I need to build the libvirt python bindings for that. I tried this for libvirt. ./configure -with-xenapi -with-python make make install I suppose this is supposed to build a .libs directory with libvirtmod.so in the ~/libvirt/python/ But I don't seem to have this at all after build. It was a clean build with no errors. I need libvirtmod.so to link with virt-manager. I'm using libvirt version 0.7.4 Can anyone help me with this. Am I missing something here Thanks in Advance, -SP

4 4

[libvirt] [PATCH] Ensure QEMU DAC security driver is activated at all times
by Daniel P. Berrange 03 Feb '10

03 Feb '10

If the primary security driver (SELinux/AppArmour) was disabled then the secondary QEMU DAC security driver was also disabled. This is mistaken, because the latter must be active at all times * src/qemu/qemu_driver.c: Ensure DAC driver is always active --- src/qemu/qemu_driver.c | 22 ++++++++++++---------- 1 files changed, 12 insertions(+), 10 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 16e9b56..a9313e7 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -897,26 +897,28 @@ qemudSecurityInit(struct qemud_driver *qemud_drv) int ret; virSecurityDriverPtr security_drv; + qemuSecurityStackedSetDriver(qemud_drv); + qemuSecurityDACSetDriver(qemud_drv); + ret = virSecurityDriverStartup(&security_drv, qemud_drv->securityDriverName); if (ret == -1) { VIR_ERROR0(_("Failed to start security driver")); return -1; } - /* No security driver wanted to be enabled: just return */ + + /* No primary security driver wanted to be enabled: just setup + * the DAC driver on its own */ if (ret == -2) { + qemud_drv->securityDriver = &qemuDACSecurityDriver; VIR_INFO0(_("No security driver available")); - return 0; + } else { + qemud_drv->securityPrimaryDriver = security_drv; + qemud_drv->securitySecondaryDriver = &qemuDACSecurityDriver; + qemud_drv->securityDriver = &qemuStackedSecurityDriver; + VIR_INFO("Initialized security driver %s", security_drv->name); } - qemuSecurityStackedSetDriver(qemud_drv); - qemuSecurityDACSetDriver(qemud_drv); - - qemud_drv->securityPrimaryDriver = security_drv; - qemud_drv->securitySecondaryDriver = &qemuDACSecurityDriver; - qemud_drv->securityDriver = &qemuStackedSecurityDriver; - - VIR_INFO("Initialized security driver %s", security_drv->name); return 0; } -- 1.6.6

2 1

[libvirt] [PATCH 00/13] Fix device hotplug with QEMU and -device
by Daniel P. Berrange 03 Feb '10

03 Feb '10

The current libvirt code enables use of -device when launching QEMU but forgot to update the equivalent code for hotpluging devices to an already running QEMU. This series implements the latter, doing three core things - Assign a unique PCI slot to the new device - Assign a unique device alias to the new device - Call the device_add function for attaching the device As a minor flaw in the whole plan, it turns out the new -netdev code in QEMU 0.12 does not support hotplugging at all. So this series also switching network setup back to using the old VLAN based syntax. Hopefully we can re-introduce use of -netdev with QEMU 0.13, since it gives important performance benefits.

3 45

[libvirt] [PATCH] udev: Don't let strtoul parse USB busnum and devnum as octal
by Matthias Bolte 03 Feb '10

03 Feb '10

udevGetUintProperty was called with base set to 0 for busnum and devnum. With base 0 strtoul parses the number as octal if it start with a 0. But busnum and devnum are decimal and udev returns them padded with leading zeros. So strtoul parses them as octal. This works for certain decimal values like 001-007, but fails for values like 008. Change udevProcessUSBDevice to use base 10 for busnum and devnum. --- src/node_device/node_device_udev.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index 734f3f7..0c0f29a 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -500,14 +500,14 @@ static int udevProcessUSBDevice(struct udev_device *device, if (udevGetUintProperty(device, "BUSNUM", &data->usb_dev.bus, - 0) == PROPERTY_ERROR) { + 10) == PROPERTY_ERROR) { goto out; } if (udevGetUintProperty(device, "DEVNUM", &data->usb_dev.device, - 0) == PROPERTY_ERROR) { + 10) == PROPERTY_ERROR) { goto out; } -- 1.6.3.3

2 3

[libvirt] [PATCH] libvirtd.c: avoid closing a negative socket file descriptor
by Jim Meyering 02 Feb '10

02 Feb '10

A lot like the last one... >From e32826290b960790b0ec4f50b195f424fa42348f Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 2 Feb 2010 11:27:25 +0100 Subject: [PATCH] libvirtd.c: avoid closing a negative socket file descriptor * daemon/libvirtd.c (qemudListenUnix): Close socket only if non-negative. --- daemon/libvirtd.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 3070dfc..f7df0c6 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -1,7 +1,7 @@ /* * libvirtd.c: daemon start of day, guest process & i/o management * - * Copyright (C) 2006, 2007, 2008, 2009 Red Hat, Inc. + * Copyright (C) 2006-2010, 2010 Red Hat, Inc. * Copyright (C) 2006 Daniel P. Berrange * * This library is free software; you can redistribute it and/or @@ -582,7 +582,7 @@ static int qemudListenUnix(struct qemud_server *server, return 0; cleanup: - if (sock->fd) + if (0 <= sock->fd) close(sock->fd); VIR_FREE(sock); return -1; -- 1.7.0.rc1.149.g0b0b7

3 2

[libvirt] [PATCH] lxc_controller.c: don't ignore failed "accept"
by Jim Meyering 02 Feb '10

02 Feb '10

coverity complained (rightly) about the risk of closing a negative file descriptor. However, the real problem was the missing test for a failed "accept" call. I'm not 100% sure that a failed accept call deserves to provoke a "goto cleanup", but doing that is consistent with what the nearby code does upon epoll_ctl failure. >From 8bfd81f0a8a9cb3fd9b575e9c2f5ab9969a2910f Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 2 Feb 2010 11:55:19 +0100 Subject: [PATCH] lxc_controller.c: don't ignore failed "accept" * src/lxc/lxc_controller.c (lxcControllerMain): A failed accept could lead to passing a negative file descriptor to various other functions, which would in turn report EBADF, rather that whatever error prompted the initial failure. --- src/lxc/lxc_controller.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index 6304815..682f874 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -349,6 +349,11 @@ static int lxcControllerMain(int monitor, if (numEvents > 0) { if (epollEvent.data.fd == monitor) { int fd = accept(monitor, NULL, 0); + if (fd < 0) { + virReportSystemError(NULL, errno, "%s", + _("accept(monitor,...) failed")); + goto cleanup; + } if (client != -1) { /* Already connected, so kick new one out */ close(fd); continue; -- 1.7.0.rc1.149.g0b0b7

2 2

[libvirt] [PATCH] storage_backend.c: avoid closing a negative file descriptor
by Jim Meyering 02 Feb '10

02 Feb '10

This close(fd) is reachable with an "fd" of -1 via the "goto cleanup" just before &fd is first set. While closing(-1) is not a big problem, it is a failing syscall, and would show up on an strace audit, not to mention the coverity and maybe-clang warnings. >From c69369c445be53f12ec09a176fd477b9ff16bbff Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 2 Feb 2010 11:11:49 +0100 Subject: [PATCH] storage_backend.c: avoid closing a negative file descriptor * src/storage/storage_backend.c (virStorageBackendRunProgRegex): Don't close a negative (read-only) file descriptor. --- src/storage/storage_backend.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index bc656f2..84eb8aa 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -1,7 +1,7 @@ /* * storage_backend.c: internal storage driver backend contract * - * Copyright (C) 2007-2009 Red Hat, Inc. + * Copyright (C) 2007-2010 Red Hat, Inc. * Copyright (C) 2007-2008 Daniel P. Berrange * * This library is free software; you can redistribute it and/or @@ -1326,8 +1326,10 @@ virStorageBackendRunProgRegex(virConnectPtr conn, if (list) fclose(list); - else - close(fd); + else { + if (0 <= fd) + close(fd); + } while ((err = waitpid(child, &exitstatus, 0) == -1) && errno == EINTR); -- 1.7.0.rc1.149.g0b0b7

3 3

[libvirt] [PATCH] avoid a probable EINVAL from lseek
by Jim Meyering 02 Feb '10

02 Feb '10

In src/qemu/qemu_driver.c, coverity reports this: Event negative_return_fn: Called negative-returning function "lseek(logfile, 0L, 2)" Event var_assign: NEGATIVE return value of "lseek" assigned to signed variable "pos" At conditional (1): "(pos = lseek(logfile, 0L, 2)) < 0" taking true path 2877 if ((pos = lseek(logfile, 0, SEEK_END)) < 0) 2878 VIR_WARN(_("Unable to seek to end of logfile: %s"), 2879 virStrerror(errno, ebuf, sizeof ebuf)); since later in that same function, a negative "pos" may be used like this: Event negative_returns: Tracked variable "pos" was passed to a negative sink. [details] 2930 if (qemudWaitForMonitor(conn, driver, vm, pos) < 0) 2931 goto abort; 2932 which is a legitimate problem, since qemudWaitForMonitor calls qemudLogReadFD, which calls lseek with that same "pos" value: Event neg_sink_parm_call: Parameter "pos" passed to negative sink "lseek" 560 if (lseek(fd, pos, SEEK_SET) < 0) { 561 virReportSystemError(conn, errno, 562 _("Unable to seek to %lld in %s"), 563 (long long) pos, logfile); 564 close(fd); 565 } One approach is to detect the negative offset in that final bit of code and skip the lseek: >From 0ef617935462c314ed0b44bcaa3dd5bf58ccbc1b Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Mon, 1 Feb 2010 22:17:44 +0100 Subject: [PATCH] avoid a probable EINVAL from lseek * src/qemu/qemu_driver.c (qemudLogReadFD): Don't pass a negative offset (from a preceding failed attempt to seek to EOF) to this use of lseek. --- src/qemu/qemu_driver.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 22593bf..676a27b 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -558,8 +558,8 @@ qemudLogReadFD(virConnectPtr conn, const char* logDir, const char* name, off_t p close(fd); return -1; } - if (lseek(fd, pos, SEEK_SET) < 0) { - virReportSystemError(conn, errno, + if (pos < 0 || lseek(fd, pos, SEEK_SET) < 0) { + virReportSystemError(conn, pos < 0 ? 0 : errno, _("Unable to seek to %lld in %s"), (long long) pos, logfile); close(fd); -- 1.7.0.rc1.149.g0b0b7

3 7

[libvirt] [PATCH] util.c (two more): don't use a negative value as allocation size
by Jim Meyering 02 Feb '10

02 Feb '10

This change is nearly identical to one I made last week. I inspected all remaining sysconf uses, and they seem to be ok. >From 77add8762c5d00db11bb588b7ea0c9e00975c183 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Mon, 1 Feb 2010 21:45:06 +0100 Subject: [PATCH] util.c (two more): don't use a negative value as allocation size * src/util/util.c (virGetUserID, virGetGroupID): In the unlikely event that sysconf(_SC_GETPW_R_SIZE_MAX) fails, don't use -1 as the size in the subsequent allocation. --- src/util/util.c | 16 ++++++++++++++-- 1 files changed, 14 insertions(+), 2 deletions(-) diff --git a/src/util/util.c b/src/util/util.c index 3c200d3..cf1290d 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -2388,11 +2388,17 @@ int virGetUserID(virConnectPtr conn, uid_t *uid) { char *strbuf; struct passwd pwbuf; struct passwd *pw = NULL; - size_t strbuflen = sysconf(_SC_GETPW_R_SIZE_MAX); + long val = sysconf(_SC_GETPW_R_SIZE_MAX); + size_t strbuflen = val; + + if (val < 0) { + virReportSystemError(conn, errno, "%s", _("sysconf failed")); + return -1; + } if (VIR_ALLOC_N(strbuf, strbuflen) < 0) { virReportOOMError(conn); return -1; } @@ -2425,11 +2431,17 @@ int virGetGroupID(virConnectPtr conn, gid_t *gid) { char *strbuf; struct group grbuf; struct group *gr = NULL; - size_t strbuflen = sysconf(_SC_GETGR_R_SIZE_MAX); + long val = sysconf(_SC_GETGR_R_SIZE_MAX); + size_t strbuflen = val; + + if (val < 0) { + virReportSystemError(conn, errno, "%s", _("sysconf failed")); + return -1; + } if (VIR_ALLOC_N(strbuf, strbuflen) < 0) { virReportOOMError(conn); return -1; } -- 1.7.0.rc1.149.g0b0b7

2 2

[libvirt] virt-manager network properties
by C.J. Adams-Collier 02 Feb '10

02 Feb '10

Hey Dan, list, It seems to me that virt-manager could do with more information about the virtual network devices, the DHCP leases on them, maybe a view of the arp table, etc. To this end, I've abused Dan's .glade file a bit and put some stub code in virtManger/host.py Could I get some comments and some recommendations for next steps? It's been a while since I've done any glade'ing... Cheers, C.J.

1 2

[libvirt] [PATCH] qemu_monitor_json.c: avoid many unconditional leaks
by Jim Meyering 02 Feb '10

02 Feb '10

Actually, the preceding patch fixed only the one leak that had been introduced in the last month or so. Looking at the many other functions that do the same sort of thing (call qemuMonitorJSONMakeCommand, and later virJSONValueFree), I saw that they all had exactly the same leak. So this amended patch fixes all of them: >From 28f820354dcae9950cad042ea78a893fd9475830 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Wed, 27 Jan 2010 09:58:12 +0100 Subject: [PATCH] qemu_monitor_json.c: avoid many unconditional leaks * src/qemu/qemu_monitor_json.c (qemuMonitorJSONAttachDrive): Don't leak the buffer behind a virJSONValuePtr. (qemuMonitorJSONStartCPUs): Likewise. (qemuMonitorJSONStopCPUs, qemuMonitorJSONSystemPowerdown): Likewise. (qemuMonitorJSONGetCPUInfo, qemuMonitorJSONGetBalloonInfo): Likewise. (qemuMonitorJSONGetBlockStatsInfo): Likewise. (qemuMonitorJSONSetVNCPassword): Likewise. (qemuMonitorJSONSetBalloon, qemuMonitorJSONEjectMedia): Likewise. (qemuMonitorJSONChangeMedia, qemuMonitorJSONSaveMemory): Likewise. (qemuMonitorJSONSetMigrationSpeed): Likewise. (qemuMonitorJSONGetMigrationStatus, qemuMonitorJSONMigrate): Likewise. (qemuMonitorJSONMigrateCancel, qemuMonitorJSONAddUSB): Likewise. (qemuMonitorJSONAddPCIHostDevice, qemuMonitorJSONAddPCIDisk): Likewise. (qemuMonitorJSONAddPCINetwork, qemuMonitorJSONRemovePCIDevice): Likewise. (qemuMonitorJSONSendFileHandle): Likewise. (qemuMonitorJSONCloseFileHandle): Likewise. (qemuMonitorJSONAddHostNetwork): Likewise. (qemuMonitorJSONRemoveHostNetwork): Likewise. (qemuMonitorJSONGetPtyPaths): Likewise. (qemuMonitorJSONAttachPCIDiskController): Likewise. --- src/qemu/qemu_monitor_json.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 8e88c7e..b6c3449 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -492,6 +492,7 @@ qemuMonitorJSONStartCPUs(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -512,6 +513,7 @@ qemuMonitorJSONStopCPUs(qemuMonitorPtr mon) ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -531,6 +533,7 @@ int qemuMonitorJSONSystemPowerdown(qemuMonitorPtr mon) ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -637,6 +640,7 @@ int qemuMonitorJSONGetCPUInfo(qemuMonitorPtr mon, ret = qemuMonitorJSONExtractCPUInfo(reply, pids); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -696,6 +700,7 @@ int qemuMonitorJSONGetBalloonInfo(qemuMonitorPtr mon, cleanup: virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -800,6 +805,7 @@ int qemuMonitorJSONGetBlockStatsInfo(qemuMonitorPtr mon, cleanup: virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -824,6 +830,7 @@ int qemuMonitorJSONSetVNCPassword(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -861,6 +868,7 @@ int qemuMonitorJSONSetBalloon(qemuMonitorPtr mon, cleanup: virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -884,6 +892,7 @@ int qemuMonitorJSONEjectMedia(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -918,6 +927,7 @@ int qemuMonitorJSONChangeMedia(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -945,6 +955,7 @@ static int qemuMonitorJSONSaveMemory(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -991,6 +1002,7 @@ int qemuMonitorJSONSetMigrationSpeed(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1084,6 +1096,7 @@ int qemuMonitorJSONGetMigrationStatus(qemuMonitorPtr mon, ret = -1; virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1109,6 +1122,7 @@ static int qemuMonitorJSONMigrate(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1206,6 +1220,7 @@ int qemuMonitorJSONMigrateCancel(qemuMonitorPtr mon) ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1229,6 +1244,7 @@ static int qemuMonitorJSONAddUSB(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1369,6 +1385,7 @@ int qemuMonitorJSONAddPCIHostDevice(qemuMonitorPtr mon, ret = -1; virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1410,6 +1427,7 @@ int qemuMonitorJSONAddPCIDisk(qemuMonitorPtr mon, ret = -1; virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1442,6 +1460,7 @@ int qemuMonitorJSONAddPCINetwork(qemuMonitorPtr mon, ret = -1; virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1475,6 +1494,7 @@ int qemuMonitorJSONRemovePCIDevice(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1498,6 +1518,7 @@ int qemuMonitorJSONSendFileHandle(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1520,6 +1541,7 @@ int qemuMonitorJSONCloseFileHandle(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1542,6 +1564,7 @@ int qemuMonitorJSONAddHostNetwork(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1566,6 +1589,7 @@ int qemuMonitorJSONRemoveHostNetwork(qemuMonitorPtr mon, ret = qemuMonitorJSONCheckError(cmd, reply); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1665,6 +1689,7 @@ int qemuMonitorJSONGetPtyPaths(qemuMonitorPtr mon, ret = qemuMonitorJSONExtractPtyPaths(reply, paths); virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1705,6 +1730,7 @@ int qemuMonitorJSONAttachPCIDiskController(qemuMonitorPtr mon, ret = -1; virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } @@ -1773,6 +1799,7 @@ int qemuMonitorJSONAttachDrive(qemuMonitorPtr mon, ret = -1; virJSONValueFree(cmd); + VIR_FREE(cmd); virJSONValueFree(reply); return ret; } -- 1.7.0.rc0.140.gfbe7

3 6

[libvirt] [PATCH] avoid format-related warnings
by Jim Meyering 02 Feb '10

02 Feb '10

FYI, more of these. No need to review. I'll push shortly. >From 4cd188d4d5e4ffebdc026dee9179d2a97c02d3f5 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Mon, 1 Feb 2010 18:25:23 +0100 Subject: [PATCH] avoid format-related warnings * src/qemu/qemu_monitor_text.c (qemuMonitorTextGetAllPCIAddresses): Use %s. * src/storage/storage_backend_iscsi.c (virStorageBackendCreateIfaceIQN): Likewise. * tools/virsh.c (cmdSecretSetValue): Likewise. --- src/qemu/qemu_monitor_text.c | 2 +- src/storage/storage_backend_iscsi.c | 4 ++-- tools/virsh.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index 380bcdc..44111e1 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -1959,7 +1959,7 @@ int qemuMonitorTextGetAllPCIAddresses(qemuMonitorPtr mon, if (qemuMonitorCommand(mon, "info pci", &reply) < 0) { qemudReportError(NULL, NULL, NULL, VIR_ERR_OPERATION_FAILED, - _("cannot query PCI addresses")); + "%s", _("cannot query PCI addresses")); return -1; } diff --git a/src/storage/storage_backend_iscsi.c b/src/storage/storage_backend_iscsi.c index 5c657b4..0d3c7b1 100644 --- a/src/storage/storage_backend_iscsi.c +++ b/src/storage/storage_backend_iscsi.c @@ -1,7 +1,7 @@ /* * storage_backend_iscsi.c: storage backend for iSCSI handling * - * Copyright (C) 2007-2008 Red Hat, Inc. + * Copyright (C) 2007-2008, 2010 Red Hat, Inc. * Copyright (C) 2007-2008 Daniel P. Berrange * * This library is free software; you can redistribute it and/or @@ -259,7 +259,7 @@ virStorageBackendCreateIfaceIQN(virConnectPtr conn, char temp_ifacename[32]; if (virRandomInitialize(time(NULL) ^ getpid()) == -1) { - virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, + virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Failed to initialize random generator " "when creating iscsi interface")); goto out; diff --git a/tools/virsh.c b/tools/virsh.c index 1fae5e6..01d2038 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -1,7 +1,7 @@ /* * virsh.c: a Xen shell used to exercise the libvirt API * - * Copyright (C) 2005, 2007-2009 Red Hat, Inc. + * Copyright (C) 2005, 2007-2010 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -5482,7 +5482,7 @@ cmdSecretSetValue(vshControl *ctl, const vshCmd *cmd) goto cleanup; if (!base64_decode_alloc(base64, strlen(base64), &value, &value_size)) { - vshError(ctl, _("Invalid base64 data")); + vshError(ctl, "%s", _("Invalid base64 data")); goto cleanup; } if (value == NULL) { -- 1.7.0.rc1.149.g0b0b7

1 0

[libvirt] [PATCH] cpu_x86.c: avoid NULL-deref for invalid arguments
by Jim Meyering 02 Feb '10

02 Feb '10

Passing a NULL "models" pointer along with a contradictory "nmodels >= 1" would cause a NULL-dereference. An alternative to the fix below would be simply to guard the NULL-derferencing strcmp with "if (models ...", but that wouldn't tell the caller that they're passing bogus arguments. >From f57bd1fbe7a41b1b9d8ba1be61790e95b5060ddc Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 26 Jan 2010 19:58:48 +0100 Subject: [PATCH] cpu_x86.c: avoid NULL-deref for invalid arguments * src/cpu/cpu_x86.c (x86Decode): Do not dereference NULL when "models" is NULL and nmodels is 1 or greater. --- src/cpu/cpu_x86.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c index dae7c90..47dc400 100644 --- a/src/cpu/cpu_x86.c +++ b/src/cpu/cpu_x86.c @@ -1,7 +1,7 @@ /* * cpu_x86.c: CPU driver for CPUs with x86 compatible CPUID instruction * - * Copyright (C) 2009 Red Hat, Inc. + * Copyright (C) 2009-2010 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -954,6 +954,9 @@ x86Decode(virCPUDefPtr cpu, if (data == NULL || (map = x86LoadMap()) == NULL) return -1; + if (models == NULL && nmodels != 0) + return -1; + candidate = map->models; while (candidate != NULL) { bool allowed = (models == NULL); -- 1.7.0.rc0.140.gfbe7

3 5

[libvirt] [PATCH] maint: avoid excess parens in STREQ
by Eric Blake 02 Feb '10

02 Feb '10

* src/internal.h (STREQ, STRCASEEQ, STRNEQ, STRCASENEQ, STREQLEN) (STRCASEEQLEN, STRNEQLEN, STRCASENEQLEN, STRPREFIX): Avoid redundant parenthesis. * examples/domain-events/events-c/event-test.c (STREQ): Likewise. * src/storage/parthelper.c (STREQ): Likewise. --- These macros were originally inspired by Jim Meyering, who has since made this same cleanup elsewhere. For example: http://lists.gnu.org/archive/html/bug-gnulib/2010-01/msg00293.html examples/domain-events/events-c/event-test.c | 2 +- src/internal.h | 18 +++++++++--------- src/storage/parthelper.c | 4 ++-- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/examples/domain-events/events-c/event-test.c b/examples/domain-events/events-c/event-test.c index b2eb1d5..e8f5505 100644 --- a/examples/domain-events/events-c/event-test.c +++ b/examples/domain-events/events-c/event-test.c @@ -14,7 +14,7 @@ __func__, __LINE__) #define DEBUG(fmt, ...) printf("%s:%d: " fmt "\n", \ __func__, __LINE__, __VA_ARGS__) -#define STREQ(a,b) (strcmp((a),(b)) == 0) +#define STREQ(a,b) (strcmp(a,b) == 0) #ifndef ATTRIBUTE_UNUSED #define ATTRIBUTE_UNUSED __attribute__((__unused__)) diff --git a/src/internal.h b/src/internal.h index 5ca1fa3..ec8a49f 100644 --- a/src/internal.h +++ b/src/internal.h @@ -48,15 +48,15 @@ #define N_(str) dgettext(GETTEXT_PACKAGE, (str)) /* String equality tests, suggested by Jim Meyering. */ -#define STREQ(a,b) (strcmp((a),(b)) == 0) -#define STRCASEEQ(a,b) (strcasecmp((a),(b)) == 0) -#define STRNEQ(a,b) (strcmp((a),(b)) != 0) -#define STRCASENEQ(a,b) (strcasecmp((a),(b)) != 0) -#define STREQLEN(a,b,n) (strncmp((a),(b),(n)) == 0) -#define STRCASEEQLEN(a,b,n) (strncasecmp((a),(b),(n)) == 0) -#define STRNEQLEN(a,b,n) (strncmp((a),(b),(n)) != 0) -#define STRCASENEQLEN(a,b,n) (strncasecmp((a),(b),(n)) != 0) -#define STRPREFIX(a,b) (strncmp((a),(b),strlen((b))) == 0) +#define STREQ(a,b) (strcmp(a,b) == 0) +#define STRCASEEQ(a,b) (strcasecmp(a,b) == 0) +#define STRNEQ(a,b) (strcmp(a,b) != 0) +#define STRCASENEQ(a,b) (strcasecmp(a,b) != 0) +#define STREQLEN(a,b,n) (strncmp(a,b,n) == 0) +#define STRCASEEQLEN(a,b,n) (strncasecmp(a,b,n) == 0) +#define STRNEQLEN(a,b,n) (strncmp(a,b,n) != 0) +#define STRCASENEQLEN(a,b,n) (strncasecmp(a,b,n) != 0) +#define STRPREFIX(a,b) (strncmp(a,b,strlen(b)) == 0) #define NUL_TERMINATE(buf) do { (buf)[sizeof(buf)-1] = '\0'; } while (0) #define ARRAY_CARDINALITY(Array) (sizeof (Array) / sizeof *(Array)) diff --git a/src/storage/parthelper.c b/src/storage/parthelper.c index ab04842..5626cd2 100644 --- a/src/storage/parthelper.c +++ b/src/storage/parthelper.c @@ -10,7 +10,7 @@ * in a reliable fashion if merely after a list of partitions & sizes, * though it is fine for creating partitions. * - * Copyright (C) 2007-2008 Red Hat, Inc. + * Copyright (C) 2007-2008, 2010 Red Hat, Inc. * Copyright (C) 2007-2008 Daniel P. Berrange * * This library is free software; you can redistribute it and/or @@ -37,7 +37,7 @@ #include <string.h> /* we don't need to include the full internal.h just for this */ -#define STREQ(a,b) (strcmp((a),(b)) == 0) +#define STREQ(a,b) (strcmp(a,b) == 0) /* Make the comparisons below fail if your parted headers are so old that they lack the definition. */ -- 1.6.6

3 4

[libvirt] [PATCH] Log flags in virConnectCompareCPU
by Jiri Denemark 02 Feb '10

02 Feb '10

Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/libvirt.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/libvirt.c b/src/libvirt.c index 32f9fc4..8a9ee20 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -10951,7 +10951,7 @@ virConnectCompareCPU(virConnectPtr conn, const char *xmlDesc, unsigned int flags) { - VIR_DEBUG("conn=%p, xmlDesc=%s", conn, xmlDesc); + VIR_DEBUG("conn=%p, xmlDesc=%s, flags=%u", conn, xmlDesc, flags); virResetLastError(); -- 1.6.6.1

3 2

[libvirt] [PATCH] Fix PCI host reattach on domain detach.
by Chris Lalancette 02 Feb '10

02 Feb '10

Similar to the race fixed by be34c3c7efbb1ea8999530f98b99c5dde3793f84, make sure to wait around for KVM to release the resources from a hot-detached PCI device before attempting to rebind that device to the host driver. Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- src/qemu/qemu_driver.c | 39 +++++++++++++++++++++++---------------- 1 files changed, 23 insertions(+), 16 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index bbdbe33..5bf6743 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -2240,6 +2240,26 @@ cleanup: } static void +qemudReattachManagedDevice(pciDevice *dev) +{ + int retries = 100; + + if (pciDeviceGetManaged(dev)) { + while (pciWaitForDeviceCleanup(dev, "kvm_assigned_device") + && retries) { + usleep(100*1000); + retries--; + } + if (pciReAttachDevice(NULL, dev) < 0) { + virErrorPtr err = virGetLastError(); + VIR_ERROR(_("Failed to re-attach PCI device: %s"), + err ? err->message : ""); + virResetError(err); + } + } +} + +static void qemuDomainReAttachHostDevices(virConnectPtr conn, struct qemud_driver *driver, virDomainDefPtr def) @@ -2279,20 +2299,7 @@ qemuDomainReAttachHostDevices(virConnectPtr conn, for (i = 0; i < pciDeviceListCount(pcidevs); i++) { pciDevice *dev = pciDeviceListGet(pcidevs, i); - int retries = 100; - if (pciDeviceGetManaged(dev)) { - while (pciWaitForDeviceCleanup(dev, "kvm_assigned_device") - && retries) { - usleep(100*1000); - retries--; - } - if (pciReAttachDevice(NULL, dev) < 0) { - virErrorPtr err = virGetLastError(); - VIR_ERROR(_("Failed to re-attach PCI device: %s"), - err ? err->message : ""); - virResetError(err); - } - } + qemudReattachManagedDevice(dev); } pciDeviceListFree(conn, pcidevs); @@ -6128,11 +6135,11 @@ static int qemudDomainDetachHostPciDevice(virConnectPtr conn, if (!pci) ret = -1; else { + pciDeviceSetManaged(pci, detach->managed); pciDeviceListDel(conn, driver->activePciHostdevs, pci); if (pciResetDevice(conn, pci, driver->activePciHostdevs) < 0) ret = -1; - if (detach->managed && pciReAttachDevice(conn, pci) < 0) - ret = -1; + qemudReattachManagedDevice(pci); pciFreeDevice(conn, pci); } -- 1.6.6

2 2

[libvirt] [PATCH] Look in /usr/libexec for the qemu-kvm binary.
by Chris Lalancette 02 Feb '10

02 Feb '10

On RHEL-5 the qemu-kvm binary is located in /usr/libexec. To reduce confusion for people trying to run upstream libvirt on RHEL-5 machines, make the qemu driver look in /usr/libexec for the qemu-kvm binary. To make this work, I modified virFindFileInPath to handle an absolute path correctly. I also ran into an issue where NULL was sometimes being passed for the file parameter to virFindFileInPath; it didn't crash prior to this patch since it was building paths like /usr/bin/(null). This is non-standard behavior, though, so I added a NULL check at the beginning. Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- src/qemu/qemu_conf.c | 3 ++- src/util/util.c | 13 +++++++++++++ 2 files changed, 15 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index f4a6c08..d5e38c2 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -804,7 +804,8 @@ qemudCapsInitGuest(virCapsPtr caps, if (STREQ(info->arch, hostmachine) || (STREQ(hostmachine, "x86_64") && STREQ(info->arch, "i686"))) { if (access("/dev/kvm", F_OK) == 0) { - const char *const kvmbins[] = { "qemu-kvm", /* Fedora */ + const char *const kvmbins[] = { "/usr/libexec/qemu-kvm", /* RHEL */ + "qemu-kvm", /* Fedora */ "kvm" }; /* Upstream .spec */ for (i = 0; i < ARRAY_CARDINALITY(kvmbins); ++i) { diff --git a/src/util/util.c b/src/util/util.c index 0ce5026..394ef35 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1114,6 +1114,19 @@ char *virFindFileInPath(const char *file) char *pathseg; char fullpath[PATH_MAX]; + if (file == NULL) + return NULL; + + /* if we are passed an absolute path (starting with /), return a + * copy of that path + */ + if (file[0] == '/') { + if (virFileExists(file)) + return strdup(file); + else + return NULL; + } + /* copy PATH env so we can tweak it */ if (virStrcpyStatic(pathenv, getenv("PATH")) == NULL) return NULL; -- 1.6.6

2 2

[libvirt] [PATCH] Clarify lack of generated IDE -device string in QEMU driver
by Matthew Booth 02 Feb '10

02 Feb '10

The QEMU driver contained code to generate a -device string for piix4-ide, but wasn't using it. This was intentional. This change removes the string generation and adds a comment explaining why no -device is necessary. * src/qemu/qemu_conf.c: Remove VIR_DOMAIN_CONTROLLER_TYPE_IDE handler in qemuBuildControllerDevStr(). Add comments. --- src/qemu/qemu_conf.c | 16 ++++++++-------- 1 files changed, 8 insertions(+), 8 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index f4a6c08..1c4f326 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -2121,11 +2121,8 @@ qemuBuildControllerDevStr(virDomainControllerDefPtr def) virBufferVSprintf(&buf, ",id=scsi%d", def->idx); break; + /* We always get an IDE controller, whether we want it or not. */ case VIR_DOMAIN_CONTROLLER_TYPE_IDE: - virBufferAddLit(&buf, "piix4-ide"); - virBufferVSprintf(&buf, ",id=ide%d", def->idx); - break; - default: goto error; } @@ -3141,16 +3138,19 @@ int qemudBuildCommandLine(virConnectPtr conn, if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) { for (i = 0 ; i < def->ncontrollers ; i++) { - char *scsi; - if (def->controllers[i]->type != VIR_DOMAIN_CONTROLLER_TYPE_SCSI) + /* We don't add an explicit IDE controller because the provided + * PIIX4 device already includes one. It isn't possible to remove + * the PIIX4. */ + if (def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE) continue; ADD_ARG_LIT("-device"); - if (!(scsi = qemuBuildControllerDevStr(def->controllers[i]))) + char *devstr; + if (!(devstr = qemuBuildControllerDevStr(def->controllers[i]))) goto no_memory; - ADD_ARG(scsi); + ADD_ARG(devstr); } } -- 1.6.6

3 6

[libvirt] Bugfix for RHEL 5.4+ ?? -- Re: Synchronous commands block virsh?
by Andreas Kurz 02 Feb '10

02 Feb '10

Hi list, I found this thread from December: http://www.mail-archive.com/libvir-list@redhat.com/msg18595.htm .... that starting with version 0.7.4 libvirtd will no longer block other API calls, which would be extremely useful in HA clusters in combination with live migration. Will this fix find its way into RHEL 5? Regards, Andreas

4 4

[libvirt] vshRunConsole:77 : unable to open tty
by Ruben Kerkhof 30 Jan '10

30 Jan '10

Hi all, I'm unable to open a serial console to a kvm virtual machine with virsh console: [root@phy003 ~]# virsh console f12 Connected to domain f12 Escape character is ^] 20:43:48.282: error : vshRunConsole:77 : unable to open tty /dev/pts/ 1 : No such file or directory If you look carefully to the message above, there's a space after /dev/ pts/1 I can also see this in the xml: [root@phy003 ~]# virsh dumpxml f12 > f12.xml <console type='pty' tty='/dev/pts/1^M'> <source path='/dev/pts/1^M'/> <target port='0'/> </console> <console type='pty' tty='/dev/pts/1^M'> <source path='/dev/pts/1^M'/> <target port='0'/> </console> I've run gdb over virsh, and this is what virDomainGetXMLDesc returns: <console type='pty' tty='/dev/pts/1\r'> I'm not sure if this has already been fixed, this is libvirt-0.7.5-3.fc12.x86_64 from the rawhide preview repo on F12, with qemu-kvm-0.12.2-4.fc12.x86_64 Any help would be appreciated. Ruben Kerkhof

2 2

[libvirt] [PATCH] maint: fix spelling error in hacking
by Eric Blake 30 Jan '10

30 Jan '10

* HACKING: STRCASEEQ is case insensitive. * docs/hacking.html.in: Likewise. --- HACKING | 4 ++-- docs/hacking.html.in | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/HACKING b/HACKING index 0c65dad..3844e50 100644 --- a/HACKING +++ b/HACKING @@ -222,7 +222,7 @@ one of the following semantically named macros STREQ(a,b) STRNEQ(a,b) - - For case sensitive equality: + - For case insensitive equality: STRCASEEQ(a,b) STRCASENEQ(a,b) @@ -231,7 +231,7 @@ one of the following semantically named macros STREQLEN(a,b,n) STRNEQLEN(a,b,n) - - For case sensitive equality of a substring: + - For case insensitive equality of a substring: STRCASEEQLEN(a,b,n) STRCASENEQLEN(a,b,n) diff --git a/docs/hacking.html.in b/docs/hacking.html.in index 43a79f7..96f6657 100644 --- a/docs/hacking.html.in +++ b/docs/hacking.html.in @@ -256,7 +256,7 @@ </pre> </li> - <li><p>For case sensitive equality:</p> + <li><p>For case insensitive equality:</p> <pre> STRCASEEQ(a,b) STRCASENEQ(a,b) @@ -271,7 +271,7 @@ </pre> </li> - <li><p>For case sensitive equality of a substring:</p> + <li><p>For case insensitive equality of a substring:</p> <pre> STRCASEEQLEN(a,b,n) -- 1.6.6

2 1

[libvirt] [PATCH] util.c (virGetUserEnt): don't use a negative value as allocation size
by Jim Meyering 30 Jan '10

30 Jan '10

Not a big deal, but reporting a failed sysconf call will make this far easier to diagnose than reporting an unwarranted OOM. >From 2bf48c9414cac791f03228ff15590414ec617f22 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 28 Jan 2010 13:37:05 +0100 Subject: [PATCH] util.c (virGetUserEnt): don't use a negative value as allocation size * src/util/util.c (virGetUserEnt): In the unlikely event that sysconf(_SC_GETPW_R_SIZE_MAX) fails, don't use -1 as the size in the subsequent allocation. --- src/util/util.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/src/util/util.c b/src/util/util.c index 0ce5026..701581d 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -2317,7 +2317,13 @@ static char *virGetUserEnt(virConnectPtr conn, char *ret; struct passwd pwbuf; struct passwd *pw = NULL; - size_t strbuflen = sysconf(_SC_GETPW_R_SIZE_MAX); + long val = sysconf(_SC_GETPW_R_SIZE_MAX); + size_t strbuflen = val; + + if (val < 0) { + virReportSystemError(conn, errno, "%s", _("sysconf failed")); + return NULL; + } if (VIR_ALLOC_N(strbuf, strbuflen) < 0) { virReportOOMError(conn); -- 1.7.0.rc0.170.g7207c

2 2

[libvirt] libvirt: build error
by Sharadha Prabhakar (3P) 30 Jan '10

30 Jan '10

Hi, I'm getting the following error when I make libvirt version 0.7.4 Make all-recursive make[1]: Entering directory `/home/sharadhap/libvirt-0.7.4' Making all in gnulib/lib make[2]: Entering directory `/home/sharadhap/libvirt-0.7.4/gnulib/lib' make all-recursive make[3]: Entering directory `/home/sharadhap/libvirt-0.7.4/gnulib/lib' make[4]: Entering directory `/home/sharadhap/libvirt-0.7.4/gnulib/lib' /bin/sh ../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../.. -I../../intl -g -O2 -MT printf-parse.lo -MD -MP -MF .deps/printf-parse.Tpo -c -o printf-parse.lo printf-parse.c libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../intl -g -O2 -MT printf-parse.lo -MD -MP -MF .deps/printf-parse.Tpo -c printf-parse.c -fPIC -DPIC -o .libs/printf-parse.o In file included from printf-parse.c:70: xsize.h: In function 'xsum': xsize.h:59: error: expected expression before ')' token xsize.h:59: error: expected expression before ')' token printf-parse.c: In function 'printf_parse': printf-parse.c:164: error: expected expression before ')' token printf-parse.c:164: error: expected expression before ')' token printf-parse.c:164: error: expected expression before ')' token printf-parse.c:164: error: expected expression before ')' token printf-parse.c:168: error: expected expression before ')' token printf-parse.c:168: error: expected expression before ')' token printf-parse.c:234: error: expected expression before ')' token printf-parse.c:234: error: expected expression before ')' token printf-parse.c:234: error: expected expression before ')' token printf-parse.c:234: error: expected expression before ')' token printf-parse.c:238: error: expected expression before ')' token printf-parse.c:238: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:252: error: expected expression before ')' token printf-parse.c:291: error: expected expression before ')' token printf-parse.c:291: error: expected expression before ')' token printf-parse.c:291: error: expected expression before ')' token printf-parse.c:291: error: expected expression before ')' token printf-parse.c:295: error: expected expression before ')' token printf-parse.c:295: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:310: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:567: error: expected expression before ')' token printf-parse.c:579: error: expected expression before ')' token printf-parse.c:579: error: expected expression before ')' token printf-parse.c:579: error: expected expression before ')' token printf-parse.c:579: error: expected expression before ')' token printf-parse.c:580: error: expected expression before ')' token printf-parse.c:580: error: expected expression before ')' token printf-parse.c:580: error: expected expression before ')' token printf-parse.c:580: error: expected expression before ')' token printf-parse.c:581: error: expected expression before ')' token printf-parse.c:581: error: expected expression before ')' token make[4]: *** [printf-parse.lo] Error 1 make[4]: Leaving directory `/home/sharadhap/libvirt-0.7.4/gnulib/lib' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/home/sharadhap/libvirt-0.7.4/gnulib/lib' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/sharadhap/libvirt-0.7.4/gnulib/lib' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/sharadhap/libvirt-0.7.4' make: *** [all] Error 2ake libvirt version 0.7.4 I'm using gcc version 4.3.2 Distro : Debian lenny 5 Could someone provide some help here? -SP

2 1

[libvirt] Release 0.4.2 of libvirt-java
by Bryan Kearney 30 Jan '10

30 Jan '10

I have just released 0.4.2 of libvirt java. This release fixes the NPE in xen Scheduled Parameters which was reported by Frederic Dangtran. You can access the latest version via the following means: Source Code: http://www.libvirt.org/git/?p=libvirt-java.git;a=summary Bundled Source (tarball and SRPM): http://libvirt.org/sources/java/ Maven: http://libvirt.org/maven2/. They should hit the central repo in a day or two. RPMS are making their way through the F12 and Rawhide build systems Thank you! -- bk

1 0

[libvirt] Release 0.4.1 of libvirt-java
by Bryan Kearney 30 Jan '10

30 Jan '10

I have just released 0.4.1 of libvirt java. There are 2 main items in this release: - Better null checking in for Scheduled Parameters which should fix the issues reported on the list. - Error Callbacks to provide better handling of errors encountered by libvirt (virConnSetErrorFunc and virSetErrorFunc). You can access the latest version via the following means: Source Code: http://www.libvirt.org/git/?p=libvirt-java.git;a=summary Bundled Source (tarball and SRPM): http://libvirt.org/sources/java/ Maven: http://libvirt.org/maven2/ RPMS are making their way through F-11 and F12 build systems Thank you! -- bk

2 5

[libvirt] Schedule for libvirt-0.7.6
by Daniel Veillard 29 Jan '10

29 Jan '10

So the plan is still to start the feature freeze end of next friday the 22 Jan and try to push 0.7.6 on the 29th. This mean there is still one week to push features :-) Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

2 1

[libvirt] [PATCH] Allow a per-PCI passthrough device permissive attribute
by Chris Lalancette 29 Jan '10

29 Jan '10

Currently there is a global tag to let the administrator turn off system-wide ACS checking when doing PCI device passthrough. However, this is too coarse-grained of an attribute, since it doesn't allow setups where certain guests are trusted while other ones are untrusted. Allow more complicated setups by making the device checking a per-device setting. The more detailed explanation of why this is necessary delves deep into PCIe internals. Ideally we'd like to be able to probe devices and figure out whether it is safe to assign them. In practice, this isn't possible because PCIe allows devices to have "hidden" bridges that software can't discover. If you were to have two devices assigned to two different domains behind one of these hidden bridges, they could do P2P traffic and bypass all of the VT-d/IOMMU checks. The next thing we could try to do is to have a whitelist of devices that we know to be safe. For instance, instead of a "hidden" bridge, PCI devices can multiplex functions instead, which causes all traffic to head to an upstream bridge before P2P can take place. Additionally, some "hidden" PCI bridges may have ACS on-board. In both of these cases it's safe to passthrough the device(s), since they can't P2P without the IOMMU getting involved. However, even if we did have a whitelist, I think we still need a permissive attribute. For one thing, the whitelist will always be out of date with respect to new hardware, so we'd need to allow administrators to temporarily override the whitelist restriction until a new version of the whitelist came out. Also, we want to support the case where the administrator knows it is safe to assign possibly unsafe devices to a domain he trusts. Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- docs/schemas/domain.rng | 6 ++++++ src/conf/domain_conf.c | 14 +++++++++++--- src/conf/domain_conf.h | 1 + src/libvirt_private.syms | 2 ++ src/qemu/qemu_driver.c | 1 + src/util/pci.c | 13 ++++++++++++- src/util/pci.h | 3 +++ 7 files changed, 36 insertions(+), 4 deletions(-) diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng index 827ff6f..9f90f4d 100644 --- a/docs/schemas/domain.rng +++ b/docs/schemas/domain.rng @@ -1175,6 +1175,12 @@ <value>no</value> </choice> </attribute> + <attribute name="permissive"> + <choice> + <value>yes</value> + <value>no</value> + </choice> + </attribute> </optional> <group> <element name="source"> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index e548d1d..899967d 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -2929,7 +2929,7 @@ virDomainHostdevDefParseXML(virConnectPtr conn, xmlNodePtr cur; virDomainHostdevDefPtr def; - char *mode, *type = NULL, *managed = NULL; + char *mode, *type = NULL, *managed = NULL, *permissive = NULL; if (VIR_ALLOC(def) < 0) { virReportOOMError(conn); @@ -2968,6 +2968,13 @@ virDomainHostdevDefParseXML(virConnectPtr conn, VIR_FREE(managed); } + permissive = virXMLPropString(node, "permissive"); + if (permissive != NULL) { + if (STREQ(permissive, "yes")) + def->permissive = 1; + VIR_FREE(permissive); + } + cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { @@ -5243,8 +5250,9 @@ virDomainHostdevDefFormat(virConnectPtr conn, return -1; } - virBufferVSprintf(buf, " <hostdev mode='%s' type='%s' managed='%s'>\n", - mode, type, def->managed ? "yes" : "no"); + virBufferVSprintf(buf, " <hostdev mode='%s' type='%s' managed='%s' permissive='%s'>\n", + mode, type, def->managed ? "yes" : "no", + def->permissive ? "yes" : "no"); virBufferAddLit(buf, " <source>\n"); if (def->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) { diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 7be090d..57ab4b4 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -475,6 +475,7 @@ typedef virDomainHostdevDef *virDomainHostdevDefPtr; struct _virDomainHostdevDef { int mode; /* enum virDomainHostdevMode */ unsigned int managed : 1; + unsigned int permissive : 1; union { struct { int type; /* enum virDomainHostdevBusType */ diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index d56fb7d..49e222e 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -441,6 +441,8 @@ pciWaitForDeviceCleanup; pciResetDevice; pciDeviceSetManaged; pciDeviceGetManaged; +pciDeviceSetPermissive; +pciDeviceGetPermissive; pciDeviceListNew; pciDeviceListFree; pciDeviceListAdd; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 5bf6743..9848f1c 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -2137,6 +2137,7 @@ qemuGetPciHostDeviceList(virConnectPtr conn, } pciDeviceSetManaged(dev, hostdev->managed); + pciDeviceSetPermissive(dev, hostdev->permissive); } return list; diff --git a/src/util/pci.c b/src/util/pci.c index 0274806..42a0be6 100644 --- a/src/util/pci.c +++ b/src/util/pci.c @@ -64,6 +64,7 @@ struct _pciDevice { unsigned has_flr : 1; unsigned has_pm_reset : 1; unsigned managed : 1; + unsigned permissive : 1; }; struct _pciDeviceList { @@ -1076,6 +1077,16 @@ unsigned pciDeviceGetManaged(pciDevice *dev) return dev->managed; } +void pciDeviceSetPermissive(pciDevice *dev, unsigned permissive) +{ + dev->permissive = !!permissive; +} + +unsigned pciDeviceGetPermissive(pciDevice *dev) +{ + return dev->permissive; +} + pciDeviceList * pciDeviceListNew(virConnectPtr conn) { @@ -1353,7 +1364,7 @@ int pciDeviceIsAssignable(virConnectPtr conn, return 0; if (ret) { - if (!strict_acs_check) { + if (!strict_acs_check || dev->permissive) { VIR_DEBUG("%s %s: strict ACS check disabled; device assignment allowed", dev->id, dev->name); } else { diff --git a/src/util/pci.h b/src/util/pci.h index e6ab137..3f98374 100644 --- a/src/util/pci.h +++ b/src/util/pci.h @@ -44,6 +44,9 @@ int pciResetDevice (virConnectPtr conn, void pciDeviceSetManaged(pciDevice *dev, unsigned managed); unsigned pciDeviceGetManaged(pciDevice *dev); +void pciDeviceSetPermissive(pciDevice *dev, + unsigned permissive); +unsigned pciDeviceGetPermissive(pciDevice *dev); pciDeviceList *pciDeviceListNew (virConnectPtr conn); void pciDeviceListFree (virConnectPtr conn, -- 1.6.6

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[libvirt] [PATCH 1/3] Clarify why some controllers don't generate -device string in QEMU driver
by Matthew Booth 29 Jan '10

29 Jan '10

The QEMU driver contained code to generate a -device string for piix4-ide, but wasn't using it. This change removes this string generation. It also adds a comment explaining why IDE and FDC controllers don't generate -device strings. The change also generates an error if a sata controller is specified for a QEMU domain, as this isn't supported. * src/qemu/qemu_conf.c: Remove VIR_DOMAIN_CONTROLLER_TYPE_IDE handler in qemuBuildControllerDevStr(). Ignore IDE and FDC controllers. Error if SATA controller is discovered. Add comments. --- src/qemu/qemu_conf.c | 26 ++++++++++++++++++-------- 1 files changed, 18 insertions(+), 8 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index f4a6c08..3b7793f 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -2121,11 +2121,8 @@ qemuBuildControllerDevStr(virDomainControllerDefPtr def) virBufferVSprintf(&buf, ",id=scsi%d", def->idx); break; + /* We always get an IDE controller, whether we want it or not. */ case VIR_DOMAIN_CONTROLLER_TYPE_IDE: - virBufferAddLit(&buf, "piix4-ide"); - virBufferVSprintf(&buf, ",id=ide%d", def->idx); - break; - default: goto error; } @@ -3141,16 +3138,29 @@ int qemudBuildCommandLine(virConnectPtr conn, if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) { for (i = 0 ; i < def->ncontrollers ; i++) { - char *scsi; - if (def->controllers[i]->type != VIR_DOMAIN_CONTROLLER_TYPE_SCSI) + virDomainControllerDefPtr cont = def->controllers[i]; + + /* We don't add an explicit IDE or FD controller because the + * provided PIIX4 device already includes one. It isn't possible to + * remove the PIIX4. */ + if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE || + cont->type == VIR_DOMAIN_CONTROLLER_TYPE_FDC) continue; + /* QEMU doesn't implement a SATA driver */ + if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_SATA) { + qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT, + "%s", _("SATA is not supported with this QEMU binary")); + goto error; + } + ADD_ARG_LIT("-device"); - if (!(scsi = qemuBuildControllerDevStr(def->controllers[i]))) + char *devstr; + if (!(devstr = qemuBuildControllerDevStr(def->controllers[i]))) goto no_memory; - ADD_ARG(scsi); + ADD_ARG(devstr); } } -- 1.6.6

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[libvirt] Libvirt guide draft published on libvirt.org
by David Jorm 29 Jan '10

29 Jan '10

I am a tech writer who recently joined the Red Hat team. I have been tasked with assisting in the improvement of libvirt documentation where possible and co-ordinating the development of the libvirt Application Development Guide. The guide was previously in the hands of Dani Coulson, who has since left Red Hat. She got it to a draft stage with a skeletal structure, but as far as I can tell nothing ever reached a publishable state. I've picked up where she left off and re-built the latest guide from the DocBook XML in git. It is now up at: http://libvirt.org/guide/ If you look in the guide, you will notice an awful lot of "TBD" stubs. Contributions to fill these would be greatly appreciated - please email them to me directly. I will chase up with the people who were originally nominated as the responsible parties to try and get some content to flesh out the guide. I don't have a lot of spare temporal bandwidth at the moment, but if there are any docs-related BZs or libvirt issues, feel free to push them my way and i'll do what I can. I think i've made every mistake possible so far in submitting patches, so I know the process by virtue of what-not-to-do. Thanks David

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[libvirt] Libvirt/LXC creation example
by Avi Weit 28 Jan '10

28 Jan '10

Hi, I am looking for a simple example for creating a Linux container (LXC) with a network connection that can be accessed from the outside world. I first tried to set up a bridge and link it with the interface eth0 configured on host via: brctl addif virbr0 eth0 but each time I did that - I lost the connection to the host and could not even ping it. The connection was resumed only when removing the host interface of eth0 from the bridge: brctl delif virbr0 eth0 How can I define the network interfaces to be configured inside the container? How can I setup container IPs? Any full XML example would be appreciated. Thanks - Avi

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[libvirt] [PATCH 0/1] Clean up udev init
by David Allan 28 Jan '10

28 Jan '10

The following patch contains cleanup for the udev init error handling and Matthias' fix for the case in which priv is NULL when shutdown is called. Dave

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[libvirt] [PATCH 0/7] Update hotplug code to use device_add
by Daniel P. Berrange 28 Jan '10

28 Jan '10

I previously changed the command line syntax to use -device for starting guests. The key reason for this was to allow unique names and PCI addresses to be assigned to all devices. I forgot todo the same for hotplug :-( This series is not yet complete, but it goes some of the way towards fixing the hotplug code to use 'device_add' for creating devices. The main remaining problem is that I'm nt assigning aliases to devices, to they all get the name of '(null)'. Obviously I'll fix that before submitting again... Daniel

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[libvirt] [PATCH] support XEN_SYSCTL_INTERFACE_VERSION
by Jim Fehlig 28 Jan '10

28 Jan '10

xen-unstable c/s 20762 bumped XEN_SYSCTL_INTERFACE_VERSION to 7. I don't see how the interface change affects libvirt, other than failing xenHypervisorInit() since version 7 is not tried. The attached patch accommodates the upcoming Xen 4.0 release by checking for XEN_SYSCTL_INTERFACE_VERSION 7. If found, it sets XEN_DOMCTL_INTERFACE_VERSION to 6, which is also new to Xen 4.0. Regards, Jim

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[libvirt] [PATCH 0/1] Clean up udev init
by David Allan 28 Jan '10

28 Jan '10

Matthias' patch made me realize that I didn't write the udev init code as cleanly as I'd like, and the error handling was starting to get a little messy. The attached patch cleans it up. There should be no functional change. Dave

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[libvirt] [PATCH] Add missing sata controller type to domain.rng
by Matthew Booth 27 Jan '10

27 Jan '10

* docs/schemas/domain.rng: Add sata controller type --- docs/schemas/domain.rng | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng index 49b57eb..827ff6f 100644 --- a/docs/schemas/domain.rng +++ b/docs/schemas/domain.rng @@ -529,6 +529,7 @@ <value>fdc</value> <value>ide</value> <value>scsi</value> + <value>sata</value> </choice> </attribute> </optional> -- 1.6.6

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