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[libvirt] Issue with libvirtd
by Faysal Ali 04 Jan '17

04 Jan '17

Hi I have a CentOS 7.3 server where I am running KVM with few virtual machines. I noticed this being repeated regularly in /var/log/messages *libvirtd[1956]: End of file while reading data: Input/output error* Anyone have seen that happening ?? Any idea where should I dig more ?? Br. Umar

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[libvirt] [PATCH] HACKING: Reduce vertical whitespace
by Andrea Bolognani 04 Jan '17

04 Jan '17

When generating the plain text version of the contributor guidelines we add a ludicrous amount of vertical whitespace in some spots. Tweak the XSLT stylesheet and regenerate the now much better looking file. --- I still think the plain text HACKING file should just be a very minimal stub explaining potential contributors how to build the HTML version and pointing them to it, but that's a discussion to have (again) another day: as long as we're generating this file, it might as well look good :) HACKING | 32 -------------------------------- docs/hacking2.xsl | 13 ++++--------- 2 files changed, 4 insertions(+), 41 deletions(-) diff --git a/HACKING b/HACKING index 1952856..c2cb037 100644 --- a/HACKING +++ b/HACKING @@ -14,21 +14,15 @@ General tips for contributing patches (1) Discuss any large changes on the mailing list first. Post patches early and listen to feedback. - - (2) Official upstream repository is kept in git ("git://libvirt.org/libvirt.git") and is browsable along with other libvirt-related repositories (e.g. libvirt-python) online <http://libvirt.org/git/>. - - (3) Patches to translations are maintained via the zanata project <https://fedora.zanata.org/>. If you want to fix a translation in a .po file, join the appropriate language team. The libvirt release process automatically pulls the latest version of each translation file from zanata. - - (4) Post patches using "git send-email", with git rename detection enabled. You need a one-time setup of: @@ -71,8 +65,6 @@ Moreover, such patch needs to be prefixed correctly with "--subject-prefix=PATCHv2" appended to "git send-email" (substitute "v2" with the correct version if needed though). - - (5) In your commit message, make the summary line reasonably short (60 characters is typical), followed by a blank line, followed by any longer description of why your patch makes sense. If the patch fixes a regression, and you know what @@ -83,8 +75,6 @@ You can use 'git shortlog -30' to get an idea of typical summary lines. Libvirt does not currently attach any meaning to Signed-off-by: lines, so it is up to you if you want to include or omit them in the commit message. - - (6) Split large changes into a series of smaller patches, self-contained if possible, with an explanation of each patch and an explanation of how the sequence of patches fits together. Moreover, please keep in mind that it's @@ -94,13 +84,9 @@ of a series, but intermediate patches must compile and not cause test-suite failures (this is to preserve the usefulness of "git bisect", among other things). - - (7) Make sure your patches apply against libvirt GIT. Developers only follow GIT and don't care much about released versions. - - (8) Run the automated tests on your code before submitting any changes. In particular, configure with compile warnings set to -Werror. This is done automatically for a git checkout; from a tarball, use: @@ -163,8 +149,6 @@ the file is stored. VIR_TEST_FILE_ACCESS=1 VIR_TEST_FILE_ACCESS_OUTPUT="/tmp/file_access.txt" ./qemuxml2argvtest - - (9) The Valgrind test should produce similar output to "make check". If the output has traces within libvirt API's, then investigation is required in order to determine the cause of the issue. Output such as the following indicates some @@ -239,15 +223,9 @@ to "tests/.valgrind.supp" in order to suppress the warning: obj:*/lib*/ld-2.*so* } - - (10) Update tests and/or documentation, particularly if you are adding a new feature or changing the output of a program. - - - - There is more on this subject, including lots of links to background reading on the subject, on Richard Jones' guide to working with open source projects <http://people.redhat.com/rjones/how-to-supply-code-to-open-source-projects/>. @@ -585,8 +563,6 @@ true) ...". Rather, write "if (seen)...". - - Of course, take all of the above with a grain of salt. If you're about to use some system interface that requires a type like "size_t", "pid_t" or "off_t", use matching types for any corresponding variables. @@ -698,8 +674,6 @@ size: - - File handling ============= Usage of the "fdopen()", "close()", "fclose()" APIs is deprecated in libvirt @@ -743,8 +717,6 @@ APIs, use the macros from virfile.h - - String comparisons ================== Do not use the strcmp, strncmp, etc functions directly. Instead use one of the @@ -792,8 +764,6 @@ following semantically named macros - - String copying ============== Do not use the strncpy function. According to the man page, it does *not* @@ -962,8 +932,6 @@ by further potentially failing calls. You should almost certainly be using a conditional and a block instead of a goto. Perhaps some of your function's logic would be better pulled out into a helper function. - - Although libvirt does not encourage the Linux kernel wind/unwind style of multiple labels, there's a good general discussion of the issue archived at KernelTrap <http://kerneltrap.org/node/553/2131> diff --git a/docs/hacking2.xsl b/docs/hacking2.xsl index 1c9271f..3595b7e 100644 --- a/docs/hacking2.xsl +++ b/docs/hacking2.xsl @@ -37,6 +37,8 @@ from docs/hacking.html.in! <xsl:value-of select="normalize-space(.)"/> <xsl:text> </xsl:text>====================== + + </xsl:template> @@ -93,20 +95,13 @@ from docs/hacking.html.in! -<xsl:template match="html:ol|html:ul|html:p"> +<xsl:template match="html:p"> <xsl:apply-templates/><xsl:value-of select="$newline"/><xsl:value-of select="$newline"/> </xsl:template> -<xsl:template match="html:ol/html:li"> -<xsl:choose> -<xsl:when test=".//node()[position()=last()]/self::pre">(<xsl:value-of select="position()"/>) <xsl:apply-templates/> -</xsl:when> - -<xsl:otherwise>(<xsl:value-of select="position()"/>) <xsl:apply-templates/><xsl:value-of select="$newline"/><xsl:value-of select="$newline"/> -</xsl:otherwise> -</xsl:choose> +<xsl:template match="html:ol/html:li">(<xsl:value-of select="position()"/>) <xsl:apply-templates/> </xsl:template> -- 2.7.4

2 2

[libvirt] [PATCH 0/3] qemu: Couple of namespace fixes
by Michal Privoznik 04 Jan '17

04 Jan '17

*** BLURB HERE *** Michal Privoznik (3): qemu: Handle EEXIST gracefully in qemuDomainCreateDevice qemuDomainAttachDeviceMknodHelper: unlink() not so often qemuDomainCreateDevice: Be more careful about device path src/qemu/qemu_domain.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) -- 2.11.0

2 7

[libvirt] [PATCH] HACKING: Regenerate
by Andrea Bolognani 04 Jan '17

04 Jan '17

When updating the source file in commit bd4f4d168660, I forgot that we also store the generated plain text version in git and didn't regenerate it. I also missed one spot that required an additional tag, so fix both mistakes in one go. --- Pushed as trivial. This is the second time I have to clean up after myself today: clearly not my best morning ever. /me pours more coffee HACKING | 10 ++++++++++ docs/hacking.html.in | 7 +++++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/HACKING b/HACKING index 3656411..1952856 100644 --- a/HACKING +++ b/HACKING @@ -14,15 +14,21 @@ General tips for contributing patches (1) Discuss any large changes on the mailing list first. Post patches early and listen to feedback. + + (2) Official upstream repository is kept in git ("git://libvirt.org/libvirt.git") and is browsable along with other libvirt-related repositories (e.g. libvirt-python) online <http://libvirt.org/git/>. + + (3) Patches to translations are maintained via the zanata project <https://fedora.zanata.org/>. If you want to fix a translation in a .po file, join the appropriate language team. The libvirt release process automatically pulls the latest version of each translation file from zanata. + + (4) Post patches using "git send-email", with git rename detection enabled. You need a one-time setup of: @@ -93,6 +99,8 @@ things). (7) Make sure your patches apply against libvirt GIT. Developers only follow GIT and don't care much about released versions. + + (8) Run the automated tests on your code before submitting any changes. In particular, configure with compile warnings set to -Werror. This is done automatically for a git checkout; from a tarball, use: @@ -238,6 +246,8 @@ feature or changing the output of a program. + + There is more on this subject, including lots of links to background reading on the subject, on Richard Jones' guide to working with open source projects <http://people.redhat.com/rjones/how-to-supply-code-to-open-source-projects/>. diff --git a/docs/hacking.html.in b/docs/hacking.html.in index 13b3640..47475a2 100644 --- a/docs/hacking.html.in +++ b/docs/hacking.html.in @@ -289,8 +289,11 @@ } </pre> </li> - <li>Update tests and/or documentation, particularly if you are adding - a new feature or changing the output of a program.</li> + + <li> + Update tests and/or documentation, particularly if you are adding + a new feature or changing the output of a program. + </li> </ol> -- 2.7.4

1 0

[libvirt] [PATCH] docs: Add missing elements
by Andrea Bolognani 04 Jan '17

04 Jan '17

Some of the <li> elements in the "General tips for contributing patches" section were missing the corresponding inner element, so they ended up all lumped together. --- Pushed as trivial. docs/hacking.html.in | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/docs/hacking.html.in b/docs/hacking.html.in index 5f19143..13b3640 100644 --- a/docs/hacking.html.in +++ b/docs/hacking.html.in @@ -8,20 +8,26 @@ <h2><a name="patches">General tips for contributing patches</a></h2> <ol> - <li>Discuss any large changes on the mailing list first. Post patches - early and listen to feedback.</li> + <li> + Discuss any large changes on the mailing list first. Post patches + early and listen to feedback. + </li> - <li>Official upstream repository is kept in git + <li> + Official upstream repository is kept in git (<code>git://libvirt.org/libvirt.git</code>) and is browsable along with other libvirt-related repositories - (e.g. libvirt-python) <a href="http://libvirt.org/git/">online</a>.</li> + (e.g. libvirt-python) <a href="http://libvirt.org/git/">online</a>. + </li> - <li>Patches to translations are maintained via + <li> + Patches to translations are maintained via the <a href="https://fedora.zanata.org/">zanata project</a>. If you want to fix a translation in a .po file, join the appropriate language team. The libvirt release process automatically pulls the latest version of each translation - file from zanata.</li> + file from zanata. + </li> <li>Post patches using "git send-email", with git rename detection enabled. You need a one-time setup of: @@ -98,8 +104,11 @@ of <code>git bisect</code>, among other things). </li> - <li>Make sure your patches apply against libvirt GIT. Developers - only follow GIT and don't care much about released versions.</li> + <li> + Make sure your patches apply against libvirt GIT. Developers + only follow GIT and don't care much about released versions. + </li> + <li>Run the automated tests on your code before submitting any changes. In particular, configure with compile warnings set to -Werror. This is done automatically for a git checkout; from a -- 2.7.4

1 0

[libvirt] [PATCH] docs: fix list of domain states in virsh manpage
by Laine Stump 04 Jan '17

04 Jan '17

The virsh manpage lists "shutdown" and "dying" as two of the possible domain states that could be listed in the output of the "virsh list" command. However, a domain that is being shutdown will be listed as "in shutdown", and the "dying" state doesn't even exist (and never has, as far as I can tell from looking through git history - it was shown in the original import of the virsh.pod file in 2006; there was no VIR_DOMAIN_DYING state then, there wasn't one when those lines of virsh.pod were tweaked in 2008, and there still isn't one today. Apparently it was just something that sounded like a good idea to someone at some time, but was never implemented...) Resolves: https://bugzilla.redhat.com/1408778 --- tools/virsh.pod | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/tools/virsh.pod b/tools/virsh.pod index 940c646..73b3b09 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -440,7 +440,7 @@ running B<virsh suspend>. When in a paused state the domain will still consume allocated resources like memory, but will not be eligible for scheduling by the hypervisor. -=item B<shutdown> +=item B<in shutdown> The domain is in the process of shutting down, i.e. the guest operating system has been notified and should be in the process of stopping its operations @@ -457,11 +457,6 @@ The domain has crashed, which is always a violent ending. Usually this state can only occur if the domain has been configured not to restart on crash. -=item B<dying> - -The domain is in process of dying, but hasn't completely shutdown or -crashed. - =item B<pmsuspended> The domain has been suspended by guest power management, e.g. entered -- 2.7.4

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[libvirt] [PATCH] libxl: define a per-domain logger.
by Cédric Bosdonnat 04 Jan '17

04 Jan '17

libxl doesn't provide a way to write one log for each domain. Thus we need to demux the messages. If our logger doesn't know to which domain to attribute a message, then it will write it to the default log file. Starting with Xen 4.9 (commit f9858025 and following), libxl will write the domain ID in an easy to grab manner. The logger introduced by this commit will use it to demux the libxl log messages. Thanks to the default log file, this logger will also work with older versions of Xen. --- src/Makefile.am | 1 + src/libxl/libxl_conf.c | 38 +-------- src/libxl/libxl_conf.h | 4 +- src/libxl/libxl_domain.c | 4 + src/libxl/libxl_driver.c | 2 + src/libxl/libxl_logger.c | 217 +++++++++++++++++++++++++++++++++++++++++++++++ src/libxl/libxl_logger.h | 39 +++++++++ 7 files changed, 268 insertions(+), 37 deletions(-) create mode 100644 src/libxl/libxl_logger.c create mode 100644 src/libxl/libxl_logger.h diff --git a/src/Makefile.am b/src/Makefile.am index b71378728..e34d52345 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -851,6 +851,7 @@ LIBXL_DRIVER_SOURCES = \ libxl/libxl_capabilities.c libxl/libxl_capabilities.h \ libxl/libxl_domain.c libxl/libxl_domain.h \ libxl/libxl_driver.c libxl/libxl_driver.h \ + libxl/libxl_logger.c libxl/libxl_logger.h \ libxl/libxl_migration.c libxl/libxl_migration.h UML_DRIVER_SOURCES = \ diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index b569ddad8..929179903 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -76,9 +76,7 @@ libxlDriverConfigDispose(void *obj) virObjectUnref(cfg->caps); libxl_ctx_free(cfg->ctx); - xtl_logger_destroy(cfg->logger); - if (cfg->logger_file) - VIR_FORCE_FCLOSE(cfg->logger_file); + libxlLoggerFree(cfg->logger); VIR_FREE(cfg->configDir); VIR_FREE(cfg->autostartDir); @@ -1356,8 +1354,6 @@ libxlDriverConfigPtr libxlDriverConfigNew(void) { libxlDriverConfigPtr cfg; - char *log_file = NULL; - xentoollog_level log_level = XTL_DEBUG; char ebuf[1024]; unsigned int free_mem; @@ -1386,9 +1382,6 @@ libxlDriverConfigNew(void) if (VIR_STRDUP(cfg->channelDir, LIBXL_CHANNEL_DIR) < 0) goto error; - if (virAsprintf(&log_file, "%s/libxl-driver.log", cfg->logDir) < 0) - goto error; - if (virFileMakePath(cfg->logDir) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("failed to create log dir '%s': %s"), @@ -1397,37 +1390,13 @@ libxlDriverConfigNew(void) goto error; } - if ((cfg->logger_file = fopen(log_file, "a")) == NULL) { - VIR_ERROR(_("Failed to create log file '%s': %s"), - log_file, virStrerror(errno, ebuf, sizeof(ebuf))); - goto error; - } - VIR_FREE(log_file); - - switch (virLogGetDefaultPriority()) { - case VIR_LOG_DEBUG: - log_level = XTL_DEBUG; - break; - case VIR_LOG_INFO: - log_level = XTL_INFO; - break; - case VIR_LOG_WARN: - log_level = XTL_WARN; - break; - case VIR_LOG_ERROR: - log_level = XTL_ERROR; - break; - } - - cfg->logger = - (xentoollog_logger *)xtl_createlogger_stdiostream(cfg->logger_file, - log_level, XTL_STDIOSTREAM_SHOW_DATE); + cfg->logger = libxlLoggerNew(cfg->logDir, virLogGetDefaultPriority()); if (!cfg->logger) { VIR_ERROR(_("cannot create logger for libxenlight, disabling driver")); goto error; } - if (libxl_ctx_alloc(&cfg->ctx, LIBXL_VERSION, 0, cfg->logger)) { + if (libxl_ctx_alloc(&cfg->ctx, LIBXL_VERSION, 0, (void*)cfg->logger)) { VIR_ERROR(_("cannot initialize libxenlight context, probably not " "running in a Xen Dom0, disabling driver")); goto error; @@ -1478,7 +1447,6 @@ libxlDriverConfigNew(void) return cfg; error: - VIR_FREE(log_file); virObjectUnref(cfg); return NULL; } diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index 851f3afb4..69d78851a 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -41,6 +41,7 @@ # include "locking/lock_manager.h" # include "virfirmware.h" # include "libxl_capabilities.h" +# include "libxl_logger.h" # define LIBXL_DRIVER_NAME "xenlight" # define LIBXL_VNC_PORT_MIN 5900 @@ -74,8 +75,7 @@ struct _libxlDriverConfig { unsigned int version; /* log stream for driver-wide libxl ctx */ - FILE *logger_file; - xentoollog_logger *logger; + libxlLoggerPtr logger; /* libxl ctx for driver wide ops; getVersion, getNodeInfo, ... */ libxl_ctx *ctx; diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c index 5cde576ef..3bc468f61 100644 --- a/src/libxl/libxl_domain.c +++ b/src/libxl/libxl_domain.c @@ -809,6 +809,8 @@ libxlDomainCleanup(libxlDriverPrivatePtr driver, VIR_FREE(xml); } + libxlLoggerCloseFile(cfg->logger, vm->def->id); + virDomainObjRemoveTransientDef(vm); virObjectUnref(cfg); } @@ -1291,6 +1293,8 @@ libxlDomainStart(libxlDriverPrivatePtr driver, */ vm->def->id = domid; + libxlLoggerOpenFile(cfg->logger, domid, vm->def->name); + /* Always enable domain death events */ if (libxl_evenable_domain_death(cfg->ctx, vm->def->id, 0, &priv->deathW)) goto destroy_dom; diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index 7e5d9b69e..6a4ecddef 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -406,6 +406,8 @@ libxlReconnectDomain(virDomainObjPtr vm, /* Update domid in case it changed (e.g. reboot) while we were gone? */ vm->def->id = d_info.domid; + libxlLoggerOpenFile(cfg->logger, vm->def->id, vm->def->name); + /* Update hostdev state */ if (virHostdevUpdateActiveDomainDevices(hostdev_mgr, LIBXL_DRIVER_NAME, vm->def, hostdev_flags) < 0) diff --git a/src/libxl/libxl_logger.c b/src/libxl/libxl_logger.c new file mode 100644 index 000000000..31110d0fd --- /dev/null +++ b/src/libxl/libxl_logger.c @@ -0,0 +1,217 @@ +/* + * libxl_logger.c: libxl logger implementation + * + * Copyright (c) 2016 SUSE LINUX Products GmbH, Nuernberg, Germany. + * + * 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. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>. + * + * Authors: + * Cédric Bosdonnat <cbosdonnat(a)suse.com> + */ +#include <config.h> + +#include <string.h> +#include <libxl.h> + +#include "internal.h" +#include "libxl_logger.h" +#include "util/viralloc.h" +#include "util/virerror.h" +#include "util/virfile.h" +#include "util/virhash.h" +#include "util/virstring.h" +#include "util/virtime.h" + +#define VIR_FROM_THIS VIR_FROM_LIBXL + +VIR_LOG_INIT("libxl.libxl_logger"); + +typedef struct xentoollog_logger_libvirt xentoollog_logger_libvirt; + +struct xentoollog_logger_libvirt { + xentoollog_logger vtable; + xentoollog_level minLevel; + const char *logDir; + + /* map storing the opened fds: "domid" -> FILE* */ + virHashTablePtr files; + FILE *defaultLogFile; +}; + +static void +libxlLoggerFileFree(void *payload, const void *key ATTRIBUTE_UNUSED) +{ + FILE *file = payload; + VIR_FORCE_FCLOSE(file); + file = NULL; +} + +ATTRIBUTE_FMT_PRINTF(5, 0) static void +libvirt_vmessage(xentoollog_logger *logger_in, + xentoollog_level level, + int errnoval, + const char *context, + const char *format, + va_list args) +{ + xentoollog_logger_libvirt *lg = (void*)logger_in; + FILE *logFile = lg->defaultLogFile; + char timestamp[VIR_TIME_STRING_BUFLEN]; + char *message = NULL; + char *start, *end; + char ebuf[1024]; + + VIR_DEBUG("libvirt_vmessage: context='%s' format='%s'", context, format); + + if (level < lg->minLevel) + return; + + if (virVasprintf(&message, format, args) < 0) + return; + + /* Should we print to a domain-specific log file? */ + if ((start = strstr(message, ": Domain ")) && + (end = strstr(start + 9, ":"))) { + FILE *domainLogFile; + + VIR_DEBUG("Found domain log message"); + + start = start + 9; + *end = '\0'; + + domainLogFile = virHashLookup(lg->files, start); + if (domainLogFile) + logFile = domainLogFile; + + *end = ':'; + } + + /* Do the actual print to the log file */ + if (virTimeStringNowRaw(timestamp) < 0) + timestamp[0] = '\0'; + + fprintf(logFile, "%s: ", timestamp); + if (context) + fprintf(logFile, "%s: ", context); + + fprintf(logFile, "%s", message); + + if (errnoval >= 0) + fprintf(logFile, ": %s", virStrerror(errnoval, ebuf, sizeof(ebuf))); + + fputc('\n', logFile); + fflush(logFile); + + VIR_FREE(message); +} + +static void +libvirt_progress(xentoollog_logger *logger_in ATTRIBUTE_UNUSED, + const char *context ATTRIBUTE_UNUSED, + const char *doingwhat ATTRIBUTE_UNUSED, + int percent ATTRIBUTE_UNUSED, + unsigned long done ATTRIBUTE_UNUSED, + unsigned long total ATTRIBUTE_UNUSED) +{ + /* This function purposedly does nothing: it's no logging info */ +} + +static void +libvirt_destroy(xentoollog_logger *logger_in) +{ + xentoollog_logger_libvirt *lg = (void*)logger_in; + VIR_FREE(lg); +} + + +libxlLoggerPtr libxlLoggerNew(const char *logDir, + virLogPriority minLevel) +{ + xentoollog_logger_libvirt logger; + libxlLoggerPtr logger_out = NULL; + char *path = NULL; + + switch (minLevel) { + case VIR_LOG_DEBUG: + logger.minLevel = XTL_DEBUG; + break; + case VIR_LOG_INFO: + logger.minLevel = XTL_INFO; + break; + case VIR_LOG_WARN: + logger.minLevel = XTL_WARN; + break; + case VIR_LOG_ERROR: + logger.minLevel = XTL_ERROR; + break; + } + logger.logDir = logDir; + + if ((logger.files = virHashCreate(3, libxlLoggerFileFree)) == NULL) + return NULL; + + if (virAsprintf(&path, "%s/libxl-driver.log", logDir) < 0) + goto error; + + if ((logger.defaultLogFile = fopen(path, "a")) == NULL) + goto error; + + logger_out = XTL_NEW_LOGGER(libvirt, logger); + + cleanup: + VIR_FREE(path); + return logger_out; + + error: + virHashFree(logger.files); + goto cleanup; +} + +void libxlLoggerFree(libxlLoggerPtr logger) +{ + xentoollog_logger *xtl_logger = (void*)logger; + if (logger->defaultLogFile) + VIR_FORCE_FCLOSE(logger->defaultLogFile); + virHashFree(logger->files); + xtl_logger_destroy(xtl_logger); +} + +void libxlLoggerOpenFile(libxlLoggerPtr logger, int id, const char *name) +{ + char *path = NULL; + FILE *logFile = NULL; + char *domidstr = NULL; + + if (virAsprintf(&path, "%s/%s.log", logger->logDir, name) < 0 || + virAsprintf(&domidstr, "%d", id) < 0) + return; + + logFile = fopen(path, "a"); + ignore_value(virHashAddEntry(logger->files, domidstr, logFile)); + + VIR_FREE(path); + VIR_FREE(domidstr); +} + +void libxlLoggerCloseFile(libxlLoggerPtr logger, int id) +{ + char *domidstr = NULL; + if (virAsprintf(&domidstr, "%d", id) < 0) + return; + + ignore_value(virHashRemoveEntry(logger->files, domidstr)); + + VIR_FREE(domidstr); +} diff --git a/src/libxl/libxl_logger.h b/src/libxl/libxl_logger.h new file mode 100644 index 000000000..88c2868eb --- /dev/null +++ b/src/libxl/libxl_logger.h @@ -0,0 +1,39 @@ +/* + * libxl_logger.h: libxl logger implementation + * + * Copyright (c) 2016 SUSE LINUX Products GmbH, Nuernberg, Germany. + * + * 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. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>. + * + * Authors: + * Cédric Bosdonnat <cbosdonnat(a)suse.com> + */ + +#ifndef __LIBXL_LOGGER_H +# define __LIBXL_LOGGER_H + +# include "util/virlog.h" + +typedef struct xentoollog_logger_libvirt libxlLogger; +typedef libxlLogger *libxlLoggerPtr; + +libxlLoggerPtr libxlLoggerNew(const char *logDir, + virLogPriority minLevel); +void libxlLoggerFree(libxlLoggerPtr logger); + +void libxlLoggerOpenFile(libxlLoggerPtr logger, int id, const char *name); +void libxlLoggerCloseFile(libxlLoggerPtr logger, int id); + +#endif /* __LIBXL_LOGGER_H */ -- 2.11.0

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[libvirt] [PATCH 00/11] Allow creation of vHBA by parent_wwnn/wwpn or fabric_name
by John Ferlan 04 Jan '17

04 Jan '17

https://bugzilla.redhat.com/show_bug.cgi?id=1349696 Lots of details in the bz, but essentially the problem is that providing a "parent" scsi_hostX value has drawbacks on reboots because what was scsi_hostX could turn into scsi_hostY on subsequent reboots. So add the ability to use the parent wwnn/wwpn or fabric_wwn as 'search' criteria in order to create either non persistent vHBA's via nodedev or persistent vHBA's via storage pools. NB: Documentation of this "process" is on the wiki: http://wiki.libvirt.org/page/NPIV_in_libvirt and would need to be adjusted once/if the changes are accepted. John Ferlan (11): nodedev: Fix crash in libvirtd on vHBA creation path nodedev: Create helpers to search for vport capable nodedevs nodedev: Add ability to find a vport capable vHBA nodedev: Add the ability to create vHBA by parent wwnn/wwpn or fabric_wwn conf: Add more fchost search fields for storage pool vHBA creation iscsi: Clean up createVport exit paths iscsi: Change order of checks in createVport iscsi: Converge more createVport checks util: Remove need for extra VIR_FREE's in virGetFCHostNameByWWN util: Introduce virGetFCHostNameByFabricWWN iscsi: Add parent wwnn/wwpn or fabric capability for createVport docs/schemas/basictypes.rng | 15 +++ docs/schemas/nodedev.rng | 15 +++ src/conf/node_device_conf.c | 234 +++++++++++++++++++++++++++++++---- src/conf/node_device_conf.h | 17 +++ src/conf/storage_conf.c | 21 +++- src/conf/storage_conf.h | 3 + src/libvirt_private.syms | 4 + src/node_device/node_device_driver.c | 28 ++++- src/storage/storage_backend_scsi.c | 86 +++++++------ src/util/virutil.c | 113 ++++++++++++----- src/util/virutil.h | 4 + 11 files changed, 439 insertions(+), 101 deletions(-) -- 2.7.4

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[libvirt] [PATCH] qemu: Don't assume secret provided for LUKS encryption
by John Ferlan 03 Jan '17

03 Jan '17

https://bugzilla.redhat.com/show_bug.cgi?id=1405269 If a secret was not provided for what was determined to be a LUKS encrypted disk (during virStorageFileGetMetadata processing when called from qemuDomainDetermineDiskChain as a result of hotplug attach qemuDomainAttachDeviceDiskLive), then do not attempt to look it up (avoiding a libvirtd crash) and do not alter the format to "luks" when adding the disk; otherwise, the device_add would fail with a message such as: "unable to execute QEMU command 'device_add': Property 'scsi-hd.drive' can't find value 'drive-scsi0-0-0-0'" because of assumptions that when the format=luks that libvirt would have provided the secret to decrypt the volume. Access to unlock the volume will thus be left to the application. Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- I could have spread things over 2 patches (one to create the helper and one to add the extra check for nsecrets > 0), but just going with one to fix the issue just felt cleaner (besides makes any possible backports a bit simpler). NB: The "extra" !virStorageSourceIsEmpty check for the qemu_command path is a no-op essentially. src/qemu/qemu_command.c | 3 +-- src/qemu/qemu_domain.c | 15 +++++++++++++-- src/qemu/qemu_domain.h | 3 +++ src/qemu/qemu_hotplug.c | 3 ++- 4 files changed, 19 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index f8e48d2..28d8146 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1442,8 +1442,7 @@ qemuBuildDriveSourceStr(virDomainDiskDefPtr disk, if (disk->src->format > 0 && disk->src->type != VIR_STORAGE_TYPE_DIR) { const char *qemuformat = virStorageFileFormatTypeToString(disk->src->format); - if (disk->src->encryption && - disk->src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS) + if (qemuDomainDiskHasEncryptionSecret(disk->src)) qemuformat = "luks"; virBufferAsprintf(buf, "format=%s,", qemuformat); } diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index acfa695..25cb4ad 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -1174,6 +1174,18 @@ qemuDomainSecretDiskCapable(virStorageSourcePtr src) } +bool +qemuDomainDiskHasEncryptionSecret(virStorageSourcePtr src) +{ + if (!virStorageSourceIsEmpty(src) && src->encryption && + src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS && + src->encryption->nsecrets > 0) + return true; + + return false; +} + + /* qemuDomainSecretDiskPrepare: * @conn: Pointer to connection * @priv: pointer to domain private object @@ -1209,8 +1221,7 @@ qemuDomainSecretDiskPrepare(virConnectPtr conn, diskPriv->secinfo = secinfo; } - if (!virStorageSourceIsEmpty(src) && src->encryption && - src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS) { + if (qemuDomainDiskHasEncryptionSecret(src)) { if (VIR_ALLOC(secinfo) < 0) return -1; diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index b2db45e..cce879f 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -734,6 +734,9 @@ void qemuDomainSecretDiskDestroy(virDomainDiskDefPtr disk) bool qemuDomainSecretDiskCapable(virStorageSourcePtr src) ATTRIBUTE_NONNULL(1); +bool qemuDomainDiskHasEncryptionSecret(virStorageSourcePtr src) + ATTRIBUTE_NONNULL(1); + int qemuDomainSecretDiskPrepare(virConnectPtr conn, qemuDomainObjPrivatePtr priv, virDomainDiskDefPtr disk) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index 92a2e73..6b10e63 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -3584,7 +3584,8 @@ qemuDomainRemoveDiskDevice(virQEMUDriverPtr driver, * can remove the luks object password too */ if (!virStorageSourceIsEmpty(disk->src) && disk->src->encryption && - disk->src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS) { + disk->src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS && + disk->src->encryption->nsecrets > 0) { if (!(encAlias = qemuDomainGetSecretAESAlias(disk->info.alias, true))) { -- 2.7.4

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[libvirt] [PATCH jenkins-ci v2] Add libvirt-go-xml job
by Daniel P. Berrange 03 Jan '17

03 Jan '17

Add a job for building the libvirt-go-xml library code Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- Changed in v2: - Actually committed all changes projects/libvirt-go-xml.yaml | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 projects/libvirt-go-xml.yaml diff --git a/projects/libvirt-go-xml.yaml b/projects/libvirt-go-xml.yaml new file mode 100644 index 0000000..b3b316b --- /dev/null +++ b/projects/libvirt-go-xml.yaml @@ -0,0 +1,13 @@ + +- project: + name: libvirt-go-xml + machines: + - libvirt-centos-7 + - libvirt-fedora-23 + - libvirt-fedora-24 + - libvirt-fedora-rawhide + title: Libvirt Go XML + jobs: + - go-build-job: + - go-check-job: + parent_jobs: 'libvirt-go-xml-master-build' -- 2.9.3

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