Add method for checking if a string is (probably) a log message

When reading log output from QEMU/LXC we need to skip over any
libvirt log messages. Currently the QEMU driver checks for a
fixed string, but this is better done with a regex. Add a method
virLogProbablyLogMessage to do a regex check
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
上级 58e0accd
master openEuler-20.03-LTS openEuler-20.09 v1.0.4-maint v1.0.5-maint v1.0.6-maint v1.1.0-maint v1.1.1-maint v1.1.2-maint v1.1.3-maint v1.1.4-maint v1.2.0-maint v1.2.1-maint v1.2.10-maint v1.2.11-maint v1.2.12-maint v1.2.13-maint v1.2.14-maint v1.2.15-maint v1.2.16-maint v1.2.17-maint v1.2.18-maint v1.2.19-maint v1.2.2-maint v1.2.20-maint v1.2.21-maint v1.2.3-maint v1.2.4-maint v1.2.5-maint v1.2.6-maint v1.2.7-maint v1.2.8-maint v1.2.9-maint v1.3.0-maint v1.3.1-maint v1.3.2-maint v1.3.3-maint v1.3.4-maint v1.3.5-maint v2.0-maint v2.1-maint v2.2-maint v3.0-maint v3.2-maint v3.7-maint v4.1-maint v4.10-maint v4.2-maint v4.3-maint v4.4-maint v4.5-maint v4.6-maint v4.7-maint v4.8-maint v4.9-maint v5.0-maint v5.1-maint v5.1.0-maint v5.2-maint v5.3-maint v6.5.0-rc2 v6.5.0-rc1 v6.4.0 v6.4.0-rc1 v6.3.0 v6.3.0-rc1 v6.2.0 v6.2.0-rc1 v6.1.0 v6.1.0-rc2 v6.1.0-rc1 v6.0.0 v6.0.0-rc2 v6.0.0-rc1 v5.10.0 v5.10.0-rc2 v5.10.0-rc1 v5.9.0 v5.9.0-rc1 v5.8.0 v5.8.0-rc2 v5.8.0-rc1 v5.7.0 v5.7.0-rc2 v5.7.0-rc1 v5.6.0 v5.6.0-rc2 v5.6.0-rc1 v5.5.0 v5.5.0-rc2 v5.5.0-rc1 v5.4.0 v5.4.0-rc2 v5.4.0-rc1 v5.3.0 v5.3.0-rc2 v5.3.0-rc1 v5.2.0 v5.2.0-rc2 v5.2.0-rc1 v5.1.0 v5.1.0-rc2 v5.1.0-rc1 v5.0.0 v5.0.0-rc2 v5.0.0-rc1 v4.10.0 v4.10.0-rc2 v4.10.0-rc1 v4.9.0 v4.9.0-rc1 v4.8.0 v4.8.0-rc2 v4.8.0-rc1 v4.7.0 v4.7.0-rc2 v4.7.0-rc1 v4.6.0 v4.6.0-rc2 v4.6.0-rc1 v4.5.0 v4.5.0-rc2 v4.5.0-rc1 v4.4.0 v4.4.0-rc2 v4.4.0-rc1 v4.3.0 v4.3.0-rc2 v4.3.0-rc1 v4.2.0 v4.2.0-rc2 v4.2.0-rc1 v4.1.0 v4.1.0-rc2 v4.1.0-rc1 v4.0.0 v4.0.0-rc2 v4.0.0-rc1 v3.10.0 v3.10.0-rc2 v3.10.0-rc1 v3.9.0 v3.9.0-rc2 v3.9.0-rc1 v3.8.0 v3.8.0-rc1 v3.7.0 v3.7.0-rc2 v3.7.0-rc1 v3.6.0 v3.6.0-rc2 v3.6.0-rc1 v3.5.0 v3.5.0-rc2 v3.5.0-rc1 v3.4.0 v3.4.0-rc2 v3.4.0-rc1 v3.3.0 v3.3.0-rc2 v3.3.0-rc1 v3.2.1 v3.2.0 v3.2.0-rc2 v3.2.0-rc1 v3.1.0 v3.1.0-rc2 v3.1.0-rc1 v3.0.0 v3.0.0-rc2 v3.0.0-rc1 v2.5.0 v2.5.0-rc2 v2.5.0-rc1 v2.4.0 v2.4.0-rc2 v2.4.0-rc1 v2.3.0 v2.3.0-rc2 v2.3.0-rc1 v2.2.1 v2.2.0 v2.2.0-rc2 v2.2.0-rc1 v2.1.0 v2.1.0-rc1 v2.0.0 v2.0.0-rc2 v2.0.0-rc1 v1.3.5 v1.3.5-rc1 v1.3.4 v1.3.4-rc2 v1.3.4-rc1 v1.3.3.3 v1.3.3.2 v1.3.3.1 v1.3.3 v1.3.3-rc2 v1.3.3-rc1 v1.3.2 v1.3.2-rc2 v1.3.2-rc1 v1.3.1 v1.3.1-rc2 v1.3.1-rc1 v1.3.0 v1.3.0-rc2 v1.3.0-rc1 v1.2.21 v1.2.21-rc2 v1.2.21-rc1 v1.2.20 v1.2.20-rc2 v1.2.20-rc1 v1.2.19 v1.2.19-rc2 v1.2.19-rc1 v1.2.18.4 v1.2.18.3 v1.2.18.2 v1.2.18.1 v1.2.18 v1.2.18-rc2 v1.2.18-rc1 v1.2.17 v1.2.17-rc2 v1.2.17-rc1 v1.2.16 v1.2.16-rc2 v1.2.16-rc1 v1.2.15 v1.2.15-rc2 v1.2.15-rc1 v1.2.14 v1.2.14-rc2 v1.2.14-rc1 v1.2.13.2 v1.2.13.1 v1.2.13 v1.2.13-rc2 v1.2.13-rc1 v1.2.12 v1.2.12-rc2 v1.2.12-rc1 v1.2.11 v1.2.11-rc2 v1.2.11-rc1 v1.2.10 v1.2.10-rc2 v1.2.10-rc1 v1.2.9.3 v1.2.9.2 v1.2.9.1 v1.2.9 v1.2.9-rc2 v1.2.9-rc1 v1.2.8 v1.2.8-rc2 v1.2.8-rc1 v1.2.7 v1.2.7-rc2 v1.2.7-rc1 v1.2.6 v1.2.6-rc2 v1.2.6-rc1 v1.2.5 v1.2.5-rc2 v1.2.5-rc1 v1.2.4 v1.2.4-rc2 v1.2.4-rc1 v1.2.3 v1.2.3-rc2 v1.2.3-rc1 v1.2.2 v1.2.2-rc2 v1.2.2-rc1 v1.2.1 v1.2.1-rc2 v1.2.1-rc1 v1.2.0 v1.2.0-rc2 v1.2.0-rc1 v1.1.4 v1.1.4-rc2 v1.1.4-rc1 v1.1.3.9 v1.1.3.8 v1.1.3.7 v1.1.3.6 v1.1.3.5 v1.1.3.4 v1.1.3.3 v1.1.3.2 v1.1.3.1 v1.1.3 v1.1.3-rc2 v1.1.3-rc1 v1.1.2 v1.1.2-rc2 v1.1.2-rc1 v1.1.1 v1.1.1-rc2 v1.1.1-rc1 v1.1.0 v1.1.0-rc2 v1.1.0-rc1 v1.0.6 v1.0.6-rc2 v1.0.6-rc1 v1.0.5.9 v1.0.5.8 v1.0.5.7 v1.0.5.6 v1.0.5.5 v1.0.5.4 v1.0.5.3 v1.0.5.2 v1.0.5.1 v1.0.5 v1.0.5-rc1 v1.0.4 v1.0.4-rc2 v1.0.4-rc1 CVE-2017-1000256 CVE-2017-2635 CVE-2016-5008 CVE-2015-5313 CVE-2015-5247-3 CVE-2015-5247-2 CVE-2015-5247-1 CVE-2015-0236-2 CVE-2015-0236-1 CVE-2014-8136 CVE-2014-8135 CVE-2014-8131-2 CVE-2014-8131-1 CVE-2014-7823 CVE-2014-3657 CVE-2014-3633 CVE-2014-1447-2 CVE-2014-1447-1 CVE-2014-0179 CVE-2014-0028 CVE-2013-7336 CVE-2013-6458-4 CVE-2013-6458-3 CVE-2013-6458-2 CVE-2013-6458-1 CVE-2013-6457 CVE-2013-6436 CVE-2013-5651 CVE-2013-4401 CVE-2013-4400-3 CVE-2013-4400-2 CVE-2013-4400-1 CVE-2013-4399 CVE-2013-4311 CVE-2013-4297 CVE-2013-4296 CVE-2013-4292 CVE-2013-4291 CVE-2013-4239 CVE-2013-4154 CVE-2013-4153 CVE-2013-2230 CVE-2013-2218 CVE-2013-1962
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......@@ -1429,6 +1429,7 @@ virLogMessage;
virLogParseDefaultPriority;
virLogParseFilters;
virLogParseOutputs;
virLogProbablyLogMessage;
virLogReset;
virLogSetBufferSize;
virLogSetDefaultPriority;
......
......@@ -32,6 +32,7 @@
#include <unistd.h>
#include <signal.h>
#include <execinfo.h>
#include <regex.h>
#if HAVE_SYSLOG_H
# include <syslog.h>
#endif
......@@ -75,6 +76,17 @@ static char *virLogBuffer = NULL;
static int virLogLen = 0;
static int virLogStart = 0;
static int virLogEnd = 0;
static regex_t *virLogRegex = NULL;
#define VIR_LOG_DATE_REGEX "[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]"
#define VIR_LOG_TIME_REGEX "[0-9][0-9]:[0-9][0-9]:[0-9][0-9].[0-9][0-9][0-9]+[0-9][0-9][0-9][0-9]"
#define VIR_LOG_PID_REGEX "[0-9]+"
#define VIR_LOG_LEVEL_REGEX "debug|info|warning|error"
#define VIR_LOG_REGEX \
VIR_LOG_DATE_REGEX " " VIR_LOG_TIME_REGEX ": " \
VIR_LOG_PID_REGEX ": " VIR_LOG_LEVEL_REGEX " : "
/*
* Filters are used to refine the rules on what to keep or drop
......@@ -209,6 +221,12 @@ virLogOnceInit(void)
virLogStart = 0;
virLogEnd = 0;
virLogDefaultPriority = VIR_LOG_DEFAULT;
if (VIR_ALLOC(virLogRegex) >= 0) {
if (regcomp(virLogRegex, VIR_LOG_REGEX, REG_EXTENDED) != 0)
VIR_FREE(virLogRegex);
}
virLogUnlock();
if (pbm)
VIR_WARN("%s", pbm);
......@@ -1587,3 +1605,19 @@ virLogSetFromEnv(void)
if (debugEnv && *debugEnv)
virLogParseOutputs(debugEnv);
}
/*
* Returns a true value if the first line in @str is
* probably a log message generated by the libvirt
* logging layer
*/
bool virLogProbablyLogMessage(const char *str)
{
bool ret = false;
if (!virLogRegex)
return false;
if (regexec(virLogRegex, str, 0, NULL, 0) == 0)
ret = true;
return ret;
}
......@@ -188,4 +188,7 @@ extern void virLogVMessage(virLogSource src,
va_list vargs) ATTRIBUTE_FMT_PRINTF(7, 0);
extern int virLogSetBufferSize(int size);
extern void virLogEmergencyDumpAll(int signum);
bool virLogProbablyLogMessage(const char *str);
#endif
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