added pmcisconames (uncompiled & untested)

Signed-off-by: Rainer Gerhards <rgerhards@adiscon.com>

2 files changed, 161 insertions, 0 deletions

diff --git a/plugins/pmcisconames/Makefile.am b/plugins/pmcisconames/Makefile.am
new file mode 100644
index 00000000..16ed347d
--- /dev/null
+++ b/plugins/pmcisconames/Makefile.am
@@ -0,0 +1,8 @@
+pkglib_LTLIBRARIES = pmcisconames.la
+
+pmcisconames_la_SOURCES = pmcisconames.c
+pmcisconames_la_CPPFLAGS =  $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) -I ../../tools
+pmcisconames_la_LDFLAGS = -module -avoid-version
+pmcisconames_la_LIBADD = 
+
+EXTRA_DIST = 
diff --git a/plugins/pmcisconames/pmcisconames.c b/plugins/pmcisconames/pmcisconames.c
new file mode 100644
index 00000000..28fe33d0
--- /dev/null
+++ b/plugins/pmcisconames/pmcisconames.c
@@ -0,0 +1,153 @@
+/* pmcisconames.c
+ *
+ * this detects logs sent by Cisco devices that mangle their syslog output when you tell them to log by name by adding ' :' between the name and the %XXX-X-XXXXXXX: tag
+ * 
+ * instead of actually parsing the message, this modifies the message and then falls through to allow a later parser to handle the now modified message
+ *
+ * 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.lastline")
+
+/* 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;
+#define OpeningText ": %"
+CODESTARTparse
+	dbgprintf("Message will now be parsed by fix Cisco Names parser.\n");
+	assert(pMsg != NULL);
+	assert(pMsg->pszRawMsg != NULL);
+	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 */
+
+	/* check if this message is of the type we handle in this (very limited) parser */
+	/* first, we permit SP */
+	while(lenMsg && *p2parse == ' ') {
+		--lenMsg;
+		++p2parse;
+	}
+dbgprintf("pmcisconames: msg to look at: [%d]'%s'\n", lenMsg, p2parse);
+	if((unsigned) lenMsg < 34) {
+		/* too short, can not be "our" message */
+                /* minimum message, 16 character timestamp, 1 character name, ' : %ASA-1-000000: '*/
+dbgprintf("msg too short!\n");
+		ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
+	}
+
+	/* skip over timestamp */
+	lenMsg -=16;
+	p2parse +=16;
+	/* now look for the next space to walk past the hostname */
+	while(lenMsg && *p2parse != ' ') {
+		--lenMsg;
+		++p2parse;
+	}
+	/* skip the space after the hostname */
+	lenMsg -=1;
+	p2parse +=1;
+        /* if the syslog tag is : and the next thing starts with a % assume that this is a mangled cisco log and fix it */
+	if(strncasecmp((char*) p2parse, OpeningText, sizeof(OpeningText)-1) != 0) {
+		/* wrong opening text */
+dbgprintf("not a cisco name mangled log!\n");
+		ABORT_FINALIZE(RS_RET_COULD_NOT_PARSE);
+	}
+	/* bump the message portion up by two characters to overwrite the extra : */
+	memmove(p2parse, p2parse + 2, lenMsg - 2);
+	/* now, claim to abort so that something else can parse the now modified message */
+	DBGPRINTF("pmcisconames detected a mangled Cisco log message message\n");
+	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("lastmsg 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:
+ */