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authorMichael Biebl <biebl@debian.org>2011-02-17 21:19:28 +0100
committerMichael Biebl <biebl@debian.org>2011-02-17 21:19:28 +0100
commit4d8f0c039c4fa44bb43d3cdbb0674cde8bb66de4 (patch)
treeed9a0691ad8b9ec5cabfe898c2a44dd4690fbe21 /plugins
parent537e74be114f1698f9ec825cf8ea497ffc0f17c5 (diff)
downloadrsyslog-4d8f0c039c4fa44bb43d3cdbb0674cde8bb66de4.tar.gz
Imported Upstream version 5.7.4upstream/5.7.4
Diffstat (limited to 'plugins')
-rw-r--r--plugins/imfile/imfile.c24
-rw-r--r--plugins/imuxsock/imuxsock.c89
-rw-r--r--plugins/pmcisconames/pmcisconames.c27
-rw-r--r--plugins/pmsnare/Makefile.am8
-rw-r--r--plugins/pmsnare/Makefile.in585
-rw-r--r--plugins/pmsnare/pmsnare.c238
6 files changed, 916 insertions, 55 deletions
diff --git a/plugins/imfile/imfile.c b/plugins/imfile/imfile.c
index c205f60..c71e425 100644
--- a/plugins/imfile/imfile.c
+++ b/plugins/imfile/imfile.c
@@ -213,7 +213,7 @@ static rsRetVal pollFile(fileInfo_t *pThis, int *pbHadFileData)
}
/* loop below will be exited when strmReadLine() returns EOF */
- while(1) {
+ while(glbl.GetGlobalInputTermState() == 0) {
CHKiRet(strm.ReadLine(pThis->pStrm, &pCStr, pThis->readMode));
*pbHadFileData = 1; /* this is just a flag, so set it and forget it */
CHKiRet(enqLine(pThis, pCStr)); /* process line */
@@ -289,23 +289,24 @@ BEGINrunInput
int bHadFileData; /* were there at least one file with data during this run? */
CODESTARTrunInput
pthread_cleanup_push(inputModuleCleanup, NULL);
- while(1) {
-
+ while(glbl.GetGlobalInputTermState() == 0) {
do {
bHadFileData = 0;
for(i = 0 ; i < iFilPtr ; ++i) {
+ if(glbl.GetGlobalInputTermState() == 1)
+ break; /* terminate input! */
pollFile(&files[i], &bHadFileData);
}
- } while(iFilPtr > 1 && bHadFileData == 1); /* warning: do...while()! */
+ } while(iFilPtr > 1 && bHadFileData == 1 && glbl.GetGlobalInputTermState() == 0); /* warning: do...while()! */
/* Note: the additional 10ns wait is vitally important. It guards rsyslog against totally
* hogging the CPU if the users selects a polling interval of 0 seconds. It doesn't hurt any
* other valid scenario. So do not remove. -- rgerhards, 2008-02-14
*/
- srSleep(iPollInterval, 10);
-
+ if(glbl.GetGlobalInputTermState() == 0)
+ srSleep(iPollInterval, 10);
}
- /*NOTREACHED*/
+ DBGPRINTF("imfile: terminating upon request of rsyslog core\n");
pthread_cleanup_pop(0); /* just for completeness, but never called... */
RETiRet; /* use it to make sure the housekeeping is done! */
@@ -398,6 +399,13 @@ CODESTARTafterRun
ENDafterRun
+BEGINisCompatibleWithFeature
+CODESTARTisCompatibleWithFeature
+ if(eFeat == sFEATURENonCancelInputTermination)
+ iRet = RS_RET_OK;
+ENDisCompatibleWithFeature
+
+
/* The following entry points are defined in module-template.h.
* In general, they need to be present, but you do NOT need to provide
* any code here.
@@ -416,6 +424,7 @@ ENDmodExit
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_IMOD_QUERIES
+CODEqueryEtryPt_IsCompatibleWithFeature_IF_OMOD_QUERIES
ENDqueryEtryPt
@@ -527,6 +536,7 @@ CODEmodInit_QueryRegCFSLineHdlr
CHKiRet(objUse(strm, CORE_COMPONENT));
CHKiRet(objUse(prop, CORE_COMPONENT));
+ DBGPRINTF("imfile: version %s initializing\n", VERSION);
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfilename", 0, eCmdHdlrGetWord,
NULL, &pszFileName, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfiletag", 0, eCmdHdlrGetWord,
diff --git a/plugins/imuxsock/imuxsock.c b/plugins/imuxsock/imuxsock.c
index 0eee112..75f97db 100644
--- a/plugins/imuxsock/imuxsock.c
+++ b/plugins/imuxsock/imuxsock.c
@@ -143,7 +143,7 @@ static int startIndexUxLocalSockets; /* process fd from that index on (used to
* read-only after startup
*/
static int nfd = 1; /* number of Unix sockets open / read-only after startup */
-static int bSysSockFromSystemd = 0; /* Did we receive the system socket from systemd? */
+static int sd_fds = 0; /* number of systemd activated sockets */
/* config settings */
static int bOmitLocalLogging = 0;
@@ -372,41 +372,32 @@ openLogSocket(lstn_t *pLstn)
if(pLstn->sockName[0] == '\0')
return -1;
- if (ustrcmp(pLstn->sockName, UCHAR_CONSTANT(_PATH_LOG)) == 0) {
- bSysSockFromSystemd = 0; /* set default */
- int r;
-
- /* System log socket code. Check whether an FD was passed in from systemd. If
- * so, it's the /dev/log socket, so use it. */
-
- r = sd_listen_fds(0);
- if (r < 0) {
- errmsg.LogError(-r, NO_ERRCODE, "Failed to acquire systemd socket");
- ABORT_FINALIZE(RS_RET_ERR_CRE_AFUX);
- }
-
- if (r > 1) {
- errmsg.LogError(EINVAL, NO_ERRCODE, "Wrong number of systemd sockets passed");
- ABORT_FINALIZE(RS_RET_ERR_CRE_AFUX);
- }
-
- if (r == 1) {
- pLstn->fd = SD_LISTEN_FDS_START;
- r = sd_is_socket_unix(pLstn->fd, SOCK_DGRAM, -1, _PATH_LOG, 0);
- if (r < 0) {
- errmsg.LogError(-r, NO_ERRCODE, "Failed to verify systemd socket type");
- ABORT_FINALIZE(RS_RET_ERR_CRE_AFUX);
- }
-
- if (!r) {
- errmsg.LogError(EINVAL, NO_ERRCODE, "Passed systemd socket of wrong type");
- ABORT_FINALIZE(RS_RET_ERR_CRE_AFUX);
- }
- bSysSockFromSystemd = 1; /* indicate we got the socket from systemd */
- } else {
- CHKiRet(createLogSocket(pLstn));
+ pLstn->fd = -1;
+
+ if (sd_fds > 0) {
+ /* Check if the current socket is a systemd activated one.
+ * If so, just use it.
+ */
+ int fd;
+
+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + sd_fds; fd++) {
+ if( sd_is_socket_unix(fd, SOCK_DGRAM, -1, (const char*) pLstn->sockName, 0) == 1) {
+ /* ok, it matches -- just use as is */
+ pLstn->fd = fd;
+
+ dbgprintf("imuxsock: Acquired UNIX socket '%s' (fd %d) from systemd.\n",
+ pLstn->sockName, pLstn->fd);
+ break;
+ }
+ /*
+ * otherwise it either didn't matched *this* socket and
+ * we just continue to check the next one or there were
+ * an error and we will create a new socket bellow.
+ */
}
- } else {
+ }
+
+ if (pLstn->fd == -1) {
CHKiRet(createLogSocket(pLstn));
}
@@ -774,12 +765,18 @@ CODESTARTwillRun
listeners[0].bUseCreds = (bWritePidSysSock || ratelimitIntervalSysSock) ? 1 : 0;
listeners[0].bWritePid = bWritePidSysSock;
+ sd_fds = sd_listen_fds(0);
+ if (sd_fds < 0) {
+ errmsg.LogError(-sd_fds, NO_ERRCODE, "imuxsock: Failed to acquire systemd socket");
+ ABORT_FINALIZE(RS_RET_ERR_CRE_AFUX);
+ }
+
/* initialize and return if will run or not */
actSocks = 0;
for (i = startIndexUxLocalSockets ; i < nfd ; i++) {
if(openLogSocket(&(listeners[i])) == RS_RET_OK) {
++actSocks;
- dbgprintf("Opened UNIX socket '%s' (fd %d).\n", listeners[i].sockName, listeners[i].fd);
+ dbgprintf("imuxsock: Opened UNIX socket '%s' (fd %d).\n", listeners[i].sockName, listeners[i].fd);
}
}
@@ -806,15 +803,19 @@ CODESTARTafterRun
if (listeners[i].fd != -1)
close(listeners[i].fd);
- /* Clean-up files. If systemd passed us a socket it is
- * systemd's job to clean it up.*/
- if(bSysSockFromSystemd) {
- DBGPRINTF("imuxsock: got system socket from systemd, not unlinking it\n");
- i = 1;
- } else
- i = startIndexUxLocalSockets;
- for(; i < nfd; i++)
+ /* Clean-up files. */
+ for(i = startIndexUxLocalSockets; i < nfd; i++)
if (listeners[i].sockName && listeners[i].fd != -1) {
+
+ /* If systemd passed us a socket it is systemd's job to clean it up.
+ * Do not unlink it -- we will get same socket (node) from systemd
+ * e.g. on restart again.
+ */
+ if (sd_fds > 0 &&
+ listeners[i].fd >= SD_LISTEN_FDS_START &&
+ listeners[i].fd < SD_LISTEN_FDS_START + sd_fds)
+ continue;
+
DBGPRINTF("imuxsock: unlinking unix socket file[%d] %s\n", i, listeners[i].sockName);
unlink((char*) listeners[i].sockName);
}
diff --git a/plugins/pmcisconames/pmcisconames.c b/plugins/pmcisconames/pmcisconames.c
index 47d1f6f..4171e68 100644
--- a/plugins/pmcisconames/pmcisconames.c
+++ b/plugins/pmcisconames/pmcisconames.c
@@ -89,10 +89,29 @@ dbgprintf("pmcisconames: msg to look at: [%d]'%s'\n", lenMsg, p2parse);
dbgprintf("msg too short!\n");
ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
}
-
- /* skip over timestamp */
- lenMsg -=16;
- p2parse +=16;
+ /* check if the timestamp is a 16 character or 21 character timestamp
+ 'Mmm DD HH:MM:SS ' spaces at 3,6,15 : at 9,12
+ 'Mmm DD YYYY HH:MM:SS ' spaces at 3,6,11,20 : at 14,17
+ check for the : first as that will differentiate the two conditions the fastest
+ this allows the compiler to short circuit the rst of the tests if it is the wrong timestamp
+ but still check the rest to see if it looks correct
+ */
+ if ( *(p2parse + 9) == ':' && *(p2parse + 12) == ':' && *(p2parse + 3) == ' ' && *(p2parse + 6) == ' ' && *(p2parse + 15) == ' ') {
+ /* skip over timestamp */
+ dbgprintf("short timestamp found\n");
+ lenMsg -=16;
+ p2parse +=16;
+ } else {
+ if ( *(p2parse + 14) == ':' && *(p2parse + 17) == ':' && *(p2parse + 3) == ' ' && *(p2parse + 6) == ' ' && *(p2parse + 11) == ' ' && *(p2parse + 20) == ' ') {
+ /* skip over timestamp */
+ dbgprintf("long timestamp found\n");
+ lenMsg -=21;
+ p2parse +=21;
+ } else {
+ dbgprintf("timestamp is not one of the valid formats\n");
+ ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
+ }
+ }
/* now look for the next space to walk past the hostname */
while(lenMsg && *p2parse != ' ') {
--lenMsg;
diff --git a/plugins/pmsnare/Makefile.am b/plugins/pmsnare/Makefile.am
new file mode 100644
index 0000000..5b2696a
--- /dev/null
+++ b/plugins/pmsnare/Makefile.am
@@ -0,0 +1,8 @@
+pkglib_LTLIBRARIES = pmsnare.la
+
+pmsnare_la_SOURCES = pmsnare.c
+pmsnare_la_CPPFLAGS = $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) -I ../../tools
+pmsnare_la_LDFLAGS = -module -avoid-version
+pmsnare_la_LIBADD =
+
+EXTRA_DIST =
diff --git a/plugins/pmsnare/Makefile.in b/plugins/pmsnare/Makefile.in
new file mode 100644
index 0000000..255fb40
--- /dev/null
+++ b/plugins/pmsnare/Makefile.in
@@ -0,0 +1,585 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = plugins/pmsnare
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/atomic_operations.m4 \
+ $(top_srcdir)/m4/atomic_operations_64bit.m4 \
+ $(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltoptions.m4 \
+ $(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \
+ $(top_srcdir)/m4/lt~obsolete.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+ $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+ *) f=$$p;; \
+ esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+ srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+ for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+ for p in $$list; do echo "$$p $$p"; done | \
+ sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+ $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+ if (++n[$$2] == $(am__install_max)) \
+ { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+ END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+ sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+ sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+pmsnare_la_DEPENDENCIES =
+am_pmsnare_la_OBJECTS = pmsnare_la-pmsnare.lo
+pmsnare_la_OBJECTS = $(am_pmsnare_la_OBJECTS)
+AM_V_lt = $(am__v_lt_$(V))
+am__v_lt_ = $(am__v_lt_$(AM_DEFAULT_VERBOSITY))
+am__v_lt_0 = --silent
+pmsnare_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+ $(pmsnare_la_LDFLAGS) $(LDFLAGS) -o $@
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+ $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+ $(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_$(V))
+am__v_CC_ = $(am__v_CC_$(AM_DEFAULT_VERBOSITY))
+am__v_CC_0 = @echo " CC " $@;
+AM_V_at = $(am__v_at_$(V))
+am__v_at_ = $(am__v_at_$(AM_DEFAULT_VERBOSITY))
+am__v_at_0 = @
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+ $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_$(V))
+am__v_CCLD_ = $(am__v_CCLD_$(AM_DEFAULT_VERBOSITY))
+am__v_CCLD_0 = @echo " CCLD " $@;
+AM_V_GEN = $(am__v_GEN_$(V))
+am__v_GEN_ = $(am__v_GEN_$(AM_DEFAULT_VERBOSITY))
+am__v_GEN_0 = @echo " GEN " $@;
+SOURCES = $(pmsnare_la_SOURCES)
+DIST_SOURCES = $(pmsnare_la_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
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+IMUDP_LIBS = @IMUDP_LIBS@
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+UDPSPOOF_LIBS = @UDPSPOOF_LIBS@
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+host_cpu = @host_cpu@
+host_os = @host_os@
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+htmldir = @htmldir@
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+libdir = @libdir@
+libexecdir = @libexecdir@
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+localstatedir = @localstatedir@
+lt_ECHO = @lt_ECHO@
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+mkdir_p = @mkdir_p@
+moddirs = @moddirs@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
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+sysconfdir = @sysconfdir@
+systemdsystemunitdir = @systemdsystemunitdir@
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+ test "$$dir" != "$$p" || dir=.; \
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+ done
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+
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pmsnare_la-pmsnare.Plo@am__quote@
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+@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/pmsnare_la-pmsnare.Tpo $(DEPDIR)/pmsnare_la-pmsnare.Plo
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+
+mostlyclean-libtool:
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+
+clean-libtool:
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+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
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+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
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+ mkid -fID $$unique
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+TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ set x; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
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+ || exit 1; \
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+
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+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/pmsnare/pmsnare.c b/plugins/pmsnare/pmsnare.c
new file mode 100644
index 0000000..4a9880d
--- /dev/null
+++ b/plugins/pmsnare/pmsnare.c
@@ -0,0 +1,238 @@
+/* pmsnare.c
+ *
+ * this detects logs sent by Snare and cleans them up so that they can be processed by the normal parser
+ *
+ * there are two variations of this, if the client is set to 'syslog' mode it sends
+ *
+ * <pri>timestamp<sp>hostname<sp>tag<tab>otherstuff
+ *
+ * if the client is not set to syslog it sends
+ *
+ * hostname<tab>tag<tab>otherstuff
+ *
+ * ToDo, take advantage of items in the message itself to set more friendly information
+ * where the normal parser will find it by re-writing more of the message
+ *
+ * Intereting information includes:
+ *
+ * in the case of windows snare messages:
+ * the system hostname is field 12
+ * the severity is field 3 (criticality ranging form 0 to 4)
+ * the source of the log is field 4 and may be able to be mapped to facility
+ *
+ *
+ * created 2010-12-13 by David Lang based on pmlastmsg
+ *
+ * This file is part of rsyslog.
+ *
+ * Rsyslog is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Rsyslog 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Rsyslog. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * A copy of the GPL can be found in the file "COPYING" in this distribution.
+ */
+#include "config.h"
+#include "rsyslog.h"
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+#include "conf.h"
+#include "syslogd-types.h"
+#include "template.h"
+#include "msg.h"
+#include "module-template.h"
+#include "glbl.h"
+#include "errmsg.h"
+#include "parser.h"
+#include "datetime.h"
+#include "unicode-helper.h"
+
+MODULE_TYPE_PARSER
+PARSER_NAME("rsyslog.snare")
+
+/* internal structures
+ */
+DEF_PMOD_STATIC_DATA
+DEFobjCurrIf(errmsg)
+DEFobjCurrIf(glbl)
+DEFobjCurrIf(parser)
+DEFobjCurrIf(datetime)
+
+
+/* static data */
+static int bParseHOSTNAMEandTAG; /* cache for the equally-named global param - performance enhancement */
+
+
+BEGINisCompatibleWithFeature
+CODESTARTisCompatibleWithFeature
+ if(eFeat == sFEATUREAutomaticSanitazion)
+ iRet = RS_RET_OK;
+ if(eFeat == sFEATUREAutomaticPRIParsing)
+ iRet = RS_RET_OK;
+ENDisCompatibleWithFeature
+
+
+BEGINparse
+ uchar *p2parse;
+ int lenMsg;
+ int snaremessage;
+ int tablength;
+
+CODESTARTparse
+ #define TabRepresentation "#011"
+ tablength=sizeof(TabRepresentation);
+ dbgprintf("Message will now be parsed by fix Snare parser.\n");
+ assert(pMsg != NULL);
+ assert(pMsg->pszRawMsg != NULL);
+
+ /* check if this message is of the type we handle in this (very limited) parser
+
+ find out if we have a space separated or tab separated for the first item
+ if tab separated see if the second word is one of our expected tags
+ if so replace the tabs with spaces so that hostname and syslog tag are going to be parsed properly
+ optionally replace the hostname at the beginning of the message with one from later in the message
+ else, wrong message, abort
+ else, assume that we have a valid timestamp, move over to the syslog tag
+ if that is tab separated from the rest of the message and one of our expected tags
+ if so, replace the tab with a space so that it will be parsed properly
+ optionally replace the hostname at the beginning of the message withone from later in the message
+
+ */
+ snaremessage=0;
+ lenMsg = pMsg->iLenRawMsg - pMsg->offAfterPRI; /* note: offAfterPRI is already the number of PRI chars (do not add one!) */
+ p2parse = pMsg->pszRawMsg + pMsg->offAfterPRI; /* point to start of text, after PRI */
+ dbgprintf("pmsnare: msg to look at: [%d]'%s'\n", lenMsg, p2parse);
+ if((unsigned) lenMsg < 30) {
+ /* too short, can not be "our" message */
+ dbgprintf("msg too short!\n");
+ ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
+ }
+
+ while(lenMsg && *p2parse != ' ' && *p2parse != '\t' && *p2parse != '#') {
+ --lenMsg;
+ ++p2parse;
+ }
+ dbgprintf("pmsnare: separator [%d]'%s' msg after the first separator: [%d]'%s'\n", tablength,TabRepresentation,lenMsg, p2parse);
+ if ((lenMsg > tablength) && (*p2parse == '\t' || strncasecmp((char*) p2parse, TabRepresentation , tablength-1) == 0)) {
+ //if ((lenMsg > tablength) && (*p2parse == '\t' || *p2parse == '#')) {
+ dbgprintf("pmsnare: tab separated message\n");
+ if(strncasecmp((char*) (p2parse + tablength - 1), "MSWinEventLog", 13) == 0) {
+ snaremessage=13; /* 0 means not a snare message, a number is how long the tag is */
+ }
+ if(strncasecmp((char*) (p2parse + tablength - 1), "LinuxKAudit", 11) == 0) {
+ snaremessage=11; /* 0 means not a snare message, a number is how long the tag is */
+ }
+ if(snaremessage) {
+ /* replace the tab with a space and if needed move the message portion up by the length of TabRepresentation -2 characters to overwrite the extra : */
+ *p2parse = ' ';
+ lenMsg -=(tablength-2);
+ p2parse++;
+ lenMsg--;
+ memmove(p2parse, p2parse + (tablength-2), lenMsg);
+ *(p2parse + lenMsg) = '\n';
+ *(p2parse + lenMsg + 1) = '\0';
+ pMsg->iLenRawMsg -=(tablength-2);
+ pMsg->iLenMSG -=(tablength-2);
+ p2parse += snaremessage;
+ lenMsg -= snaremessage;
+ *p2parse = ' ';
+ p2parse++;
+ lenMsg--;
+ lenMsg -=(tablength-2);
+ memmove(p2parse, p2parse + (tablength-2), lenMsg);
+ *(p2parse + lenMsg) = '\n';
+ *(p2parse + lenMsg + 1) = '\0';
+ pMsg->iLenRawMsg -=(tablength-2);
+ pMsg->iLenMSG -=(tablength-2);
+ dbgprintf("found a Snare message with snare not set to send syslog messages\n");
+ }
+ } else {
+ /* go back to the beginning of the message */
+ lenMsg = pMsg->iLenRawMsg - pMsg->offAfterPRI; /* note: offAfterPRI is already the number of PRI chars (do not add one!) */
+ p2parse = pMsg->pszRawMsg + pMsg->offAfterPRI; /* point to start of text, after PRI */
+ /* skip over timestamp and space*/
+ lenMsg -=17;
+ p2parse +=17;
+ /* skip over what should be the hostname */
+ while(lenMsg && *p2parse != ' ') {
+ --lenMsg;
+ ++p2parse;
+ }
+ if (lenMsg){
+ --lenMsg;
+ ++p2parse;
+ }
+ dbgprintf("pmsnare: separator [%d]'%s' msg after the timestamp and hostname: [%d]'%s'\n", tablength,TabRepresentation,lenMsg, p2parse);
+ if(lenMsg > 13 && strncasecmp((char*) p2parse, "MSWinEventLog", 13) == 0) {
+ snaremessage=13; /* 0 means not a snare message, a number is how long the tag is */
+ }
+ if(lenMsg > 11 && strncasecmp((char*) p2parse, "LinuxKAudit", 11) == 0) {
+ snaremessage=11; /* 0 means not a snare message, a number is how long the tag is */
+ }
+ if(snaremessage) {
+ p2parse += snaremessage;
+ lenMsg -= snaremessage;
+ *p2parse = ' ';
+ p2parse++;
+ lenMsg--;
+ lenMsg -=(tablength-2);
+ memmove(p2parse, p2parse + (tablength-2), lenMsg);
+ *(p2parse + lenMsg) = '\n';
+ *(p2parse + lenMsg + 1) = '\0';
+ pMsg->iLenRawMsg -=(tablength-2);
+ pMsg->iLenMSG -=(tablength-2);
+ dbgprintf("found a Snare message with snare set to send syslog messages\n");
+ }
+
+ }
+ DBGPRINTF("pmsnare: new message: [%d]'%s'\n", lenMsg, pMsg->pszRawMsg + pMsg->offAfterPRI);
+ ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
+
+finalize_it:
+ENDparse
+
+
+BEGINmodExit
+CODESTARTmodExit
+ /* release what we no longer need */
+ objRelease(errmsg, CORE_COMPONENT);
+ objRelease(glbl, CORE_COMPONENT);
+ objRelease(parser, CORE_COMPONENT);
+ objRelease(datetime, CORE_COMPONENT);
+ENDmodExit
+
+
+BEGINqueryEtryPt
+CODESTARTqueryEtryPt
+CODEqueryEtryPt_STD_PMOD_QUERIES
+CODEqueryEtryPt_IsCompatibleWithFeature_IF_OMOD_QUERIES
+ENDqueryEtryPt
+
+
+BEGINmodInit()
+CODESTARTmodInit
+ *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
+CODEmodInit_QueryRegCFSLineHdlr
+ CHKiRet(objUse(glbl, CORE_COMPONENT));
+ CHKiRet(objUse(errmsg, CORE_COMPONENT));
+ CHKiRet(objUse(parser, CORE_COMPONENT));
+ CHKiRet(objUse(datetime, CORE_COMPONENT));
+
+ DBGPRINTF("snare parser init called, compiled with version %s\n", VERSION);
+ bParseHOSTNAMEandTAG = glbl.GetParseHOSTNAMEandTAG(); /* cache value, is set only during rsyslogd option processing */
+
+
+ENDmodInit
+
+/* vim:set ai:
+ */