snmptrapfmt-1.18/0000755000000000000000000000000014331047066010710 5ustar snmptrapfmt-1.18/.gitignore0000644000000000000000000000042211167410632012673 0ustar .gitignore *.o debian/files debian/snmptrapfmt.debhelper.log debian/snmptrapfmt.postinst.debhelper debian/snmptrapfmt.postrm.debhelper debian/snmptrapfmt.prerm.debhelper debian/snmptrapfmt.substvars debian/snmptrapfmt debian/stamp-makefile-build snmptrapfmt snmptrapfmthdlr snmptrapfmt-1.18/COPYING0000644000000000000000000010437411167410632011751 0ustar GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. 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Copyright (C) This program 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. This program 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 this program. If not, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . snmptrapfmt-1.18/Makefile0000755000000000000000000000157213717531701012361 0ustar # Makefile for snmptrapfmt # TARGETS= snmptrapfmthdlr snmptrapfmt MANPAGES= snmptrapfmthdlr.8 snmptrapfmt.8 CONFFILES= snmptrapfmt.conf DEFS= -I /usr/include/ucd-snmp -DSTDC_HEADERS -DDEBUG # Compilation parameters: CFLAGS= -O2 -g -Wall $(DEFS) `dpkg-buildflags --get CFLAGS` `dpkg-buildflags --get CPPFLAGS` LIBS= `dpkg-buildflags --get LDFLAGS` -lsnmp # You should not need to change anything below this line. all: $(TARGETS) package: clean dpkg-buildpackage -us -uc deb: clean debuild binary snmptrapfmt: snmptrapfmt.o log.o ${CC} -g -o $@ snmptrapfmt.o log.o ${LIBS} snmptrapfmthdlr: snmptrapfmthdlr.o log.o ${CC} -g -o $@ snmptrapfmthdlr.o log.o ${LIBS} clean: rm -f core *.o *.bak ${TARGETS} clobber: clean rm -f $(TARGETS) install: make cp ${TARGETS} ${DESTDIR}/usr/sbin cp ${MANPAGES} ${DESTDIR}/usr/share/man/man8 cp $(CONFFILES) $(DESTDIR)/etc/snmp snmptrapfmt-1.18/debian/0000755000000000000000000000000014331047066012132 5ustar snmptrapfmt-1.18/debian/README.debian0000755000000000000000000000115611167410632014236 0ustar snmptrapfmt for DEBIAN ---------------------- Snmptrapfmt offers formatting functionality to snmptrapd. To achieve this snmptrapd is configured to call snmptrapfmthdlr. This small program is called for each trap by default. You could configure it to be called only for selected traps. The trap data is then forwarded to a local pipe from which snmptrapfmt picks it up and does further processing. An example configuration for snmptrapd is provided in /usr/share/doc/snmptrapfmt/examples/snmptrapd.conf. See also: SNMPTRAPFMTHDLR(8) SNMPTRAPFMT(8) Jochen Friedrich Thu, 9 Apr 2009 16.12:39 +0200 snmptrapfmt-1.18/debian/changelog0000644000000000000000000001073114331047066014006 0ustar snmptrapfmt (1.18) unstable; urgency=medium * QA upload. * debian/rules: Add build-{arch,indep} (Closes: #999166). -- Marcos Talau Thu, 03 Nov 2022 20:26:46 -0300 snmptrapfmt (1.17) unstable; urgency=medium * QA upload. * Makefile: do not link with -lnsl as no symbols from that library are used. -- Aurelien Jarno Thu, 20 Aug 2020 19:32:49 +0200 snmptrapfmt (1.16) unstable; urgency=medium * QA upload. * debian/rules: do not link with now obsolete libieee.a. -- Aurelien Jarno Mon, 12 Feb 2018 18:16:00 +0000 snmptrapfmt (1.15) unstable; urgency=medium * QA upload. * Set maintainer to Debian QA Group. (see #878721) * Remove Conflicts/Replaces with "none". (Closes: #747753) * Actually link against the snmp library. -- Adrian Bunk Sat, 21 Oct 2017 21:26:43 +0300 snmptrapfmt (1.14+nmu1) unstable; urgency=low * Non-maintainer upload. * Enable hardened build flags (Closes: #656783) -- Moritz Muehlenhoff Fri, 01 Jun 2012 16:39:26 +0200 snmptrapfmt (1.14) unstable; urgency=low * Update Policy to 3.8.1 (no changes) * Update debhelper to version 7 (replacing cdbs) * Add short description to LSB header * Add Vcs and Homepage to control file * Remove unnecessary install scripts (Closes: #522915) * Replace autoupdate of snmptrapd config by example config (Closes: #552917) * Add GPL-3 boilerplate to source files * Add misc:Depends for debhelpers to package dependencies -- Jochen Friedrich Thu, 09 Apr 2009 17:07:13 +0200 snmptrapfmt (1.13) unstable; urgency=low * Update Policy to 3.7.3 * Add patch from Len Sorensen to fix a segfault on traps without enterprise value (Closes: #442162) * Add LSB header to init script (Closes: #457752) -- Jochen Friedrich Tue, 29 Jan 2008 16:25:28 +0100 snmptrapfmt (1.12) unstable; urgency=low * Fix dependecies (Closes: #431924) * Update Policy to 3.7.2 (no changes) * Update debhelper compat level to 5 -- Jochen Friedrich Wed, 11 Jul 2007 10:50:10 +0200 snmptrapfmt (1.11) unstable; urgency=low * Convert build system to cdbs. -- Jochen Friedrich Wed, 22 Mar 2006 21:14:58 +0100 snmptrapfmt (1.10) unstable; urgency=high * Fixed insecure temporary log file [log.c, CVE-2006-0050] Thanks to Will Aoki for finding this bug. -- Jochen Friedrich Wed, 15 Mar 2006 19:39:00 +0100 snmptrapfmt (1.09) unstable; urgency=low * Update for libsnmp transition. -- Jochen Friedrich Thu, 15 Sep 2005 20:51:06 +0200 snmptrapfmt (1.08) unstable; urgency=low * New Maintainer (Closes: #266820) * Updated to use net-snmp instead of UCD snmp. (Closes: #237760) -- Jochen Friedrich Fri, 7 Jan 2005 22:51:17 +0100 snmptrapfmt (1.07) unstable; urgency=low * New Version for upload. No changes. Closes #174401. -- Bernd Schumacher Fri, 3 Oct 2003 16:32:58 +0200 snmptrapfmt (1.06) unstable; urgency=low * fixed SIGSEV. Closes #174401. -- Uwe Maier Mon, 29 Sep 2003 12:56:30 +0200 snmptrapfmt (1.05) unstable; urgency=low * New version, just to get the source signed with my gpg key. * See (1.04). Closes #131737. -- Bernd Schumacher Tue, 25 Feb 2003 22:12:24 +0100 snmptrapfmt (1.04) unstable; urgency=low * Uses proper daemonization mechanism. Closes #131737. * Startup parameters without fixed sequence. -- Uwe Maier Thu, 12 Feb 2003 17:24:51 +0100 snmptrapfmt (1.03) unstable; urgency=low * Now depends on libsnmp4.2/libsnmp4.2-dev. Closes #97230. -- Bernd Schumacher Sat, 12 May 2001 14:07:04 +0200 snmptrapfmt (1.02) unstable; urgency=low * New version number indicates that this is a debian-only package. * Changed copyright to gnu. * Changed autor of version 1.0-1 to real autor in changelog. * Wrote file Readme.debian. * Extended description of OID format in snmptrapfmt.conf * Corrected lintian errors in conffiles, control and prerm * Enabled -Wall in Makefile. Corrected Warnings in sources. -- Bernd Schumacher Fri, 4 May 2001 21:09:39 +0200 snmptrapfmt (1.0-1) unstable; urgency=low * Initial Release. -- Siegfried Rupietta Tue, 01 May 2001 09:33:57 +0200 Local variables: mode: debian-changelog End: snmptrapfmt-1.18/debian/compat0000644000000000000000000000000211167410632013325 0ustar 7 snmptrapfmt-1.18/debian/control0000644000000000000000000000163013172710543013534 0ustar Source: snmptrapfmt Section: net Priority: optional Maintainer: Debian QA Group Standards-Version: 3.8.1 Build-Depends: debhelper (>=7), libsnmp-dev Homepage: https://alioth.debian.org/projects/snmptrapfmt/ Vcs-Git: git://git.debian.org/git/collab-maint/snmptrapfmt.git Vcs-Browser: http://git.debian.org/?p=collab-maint/snmptrapfmt.git Package: snmptrapfmt Architecture: any Depends: snmpd, ${shlibs:Depends}, ${misc:Depends} Description: configurable snmp trap handler daemon for snmpd This package contains a configurable snmp trap handler daemon for snmpd. The output of this trap handler daemon may be specified via a configuration file and written to a logfile or to the syslog daemon. During installation of this package, the configuration file for the snmptrapd daemon is changed (old version is saved) to activate the trap handler. The snmpd and snmptrapd daemons are restarted. snmptrapfmt-1.18/debian/copyright0000644000000000000000000000214211167410632014061 0ustar Copyright (C) 2001 Uwe Maier Copyright (C) 2001 - 2005 Bernd Schumacher Hewlett Packard Consulting Copyright (C) 2005 - 2009 Jochen Friedrich This program 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. This program 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 in the COPYING file at the root directory of this project for more details. On Debian GNU/Linux systems, the complete text of the GNU General Public License can be found in `/usr/share/common-licenses/GPL-3'. This package was built by Uwe Maier and is maintained by Jochen Friedrich . Bernd Schumacher Hewlett Packard Consulting previously maintained this package. snmptrapfmt-1.18/debian/dirs0000644000000000000000000000006011167410632013007 0ustar usr/sbin usr/share/man/man8 etc/init.d etc/snmp snmptrapfmt-1.18/debian/examples/0000755000000000000000000000000011167410632013745 5ustar snmptrapfmt-1.18/debian/examples/snmptrapd.conf0000644000000000000000000000051411167410632016624 0ustar ############################################################################### # # An example configuration file for configuring the Net-SNMP # snmptrapd agent to forward traps to snmptrapfmthdlr. # ############################################################################### # traphandle default /usr/sbin/snmptrapfmthdlr snmptrapfmt-1.18/debian/init.d0000755000000000000000000000253611167410632013250 0ustar #! /bin/sh # ### BEGIN INIT INFO # Provides: snmptrapfmt # Required-Start: $remote_fs # Required-Stop: $remote_fs # Should-Start: $network snmpd # Should-Stop: $network snmpd # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: SNMP Trap Formatting Agent ### END INIT INFO # # Written by Miquel van Smoorenburg . # Modified for Debian GNU/Linux by Ian Murdock . # Modified for Debian by Christoph Lameter PATH=/bin:/usr/bin:/sbin:/usr/sbin DAEMON=/usr/sbin/snmptrapfmt # The following value is extracted by debstd to figure out how to generate # the postinst script. Edit the field to change the way the script is # registered through update-rc.d (see the manpage for update-rc.d!) FLAGS="defaults 50" test -f $DAEMON || exit 0 case "$1" in start) start-stop-daemon --start --verbose --exec $DAEMON -- -D -f /etc/snmp/snmptrapfmt.conf ;; stop) start-stop-daemon --stop --verbose --exec $DAEMON -p /var/run/snmptrapfmt.pid ;; restart|reload|force-reload) start-stop-daemon --stop --verbose --exec $DAEMON -p /var/run/snmptrapfmt.pid start-stop-daemon --start --verbose --exec $DAEMON -- -D -f /etc/snmp/snmptrapfmt.conf ;; *) echo "Usage: /etc/init.d/snmptrapfmt {start|stop}" exit 1 ;; esac exit 0 snmptrapfmt-1.18/debian/postrm0000755000000000000000000000040511167410632013400 0ustar #!/bin/sh set -e # remove pid and pipe file only when being removed case "$1" in "remove"| "purge"| "abort-install") # make sure pipe and pid file are removed rm -f /var/run/snmptrapfmt.p /var/run/snmptrapfmt.pid ;; *) ;; esac #DEBHELPER# snmptrapfmt-1.18/debian/rules0000755000000000000000000000063414331047066013215 0ustar #!/usr/bin/make -f build: build-stamp build-stamp: dh build touch build-stamp clean: dh clean install: build install-stamp install-stamp: dh install touch install-stamp binary-arch: install dh binary-arch binary-indep: install dh binary-indep binary: binary-arch binary-indep build-arch: build build-indep: build .PHONY: binary binary-arch binary-indep build build-arch build-indep clean install snmptrapfmt-1.18/debian/snmptrapfmt.examples0000644000000000000000000000003711167410632016242 0ustar debian/examples/snmptrapd.conf snmptrapfmt-1.18/log.c0000755000000000000000000000512311167410632011636 0ustar /* * log.c * * Generic log module. * * Usage: loginit(ProcessName, NameOfLogFile, LogLevel, appendMode); * logging(level, msg, ...); * * Copyright (C) 2001 Uwe Maier * Copyright (C) 2001 - 2005 Bernd Schumacher Hewlett Packard Consulting * * Copyright (C) 2005 - 2009 Jochen Friedrich * * This program 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. * * This program 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 in the COPYING file at the * root directory of this project for more details. * */ /* --- include section --- */ #include "log.h" #include #include #include #include #include #include #include #include #include #include /* --- private variables --- */ static char *fp_pname; static char *fp_fname; static int fp_level; static int fp_appmode; static FILE *fp_log = NULL; /* --- public functions --- */ void loginit (char *pname, char *fname, int loglevel, int appendMode) { fp_pname = pname; fp_fname = fname; fp_level = loglevel; fp_appmode = appendMode; } void logging (int level, char *fmt, ...) { va_list ap; char tbuf[24]; time_t curtime; int fp_fd; /* level of current message too high ? */ if (level > fp_level) { return; } /* open the log file, if necessary */ if (!fp_log) { fp_fd = open (fp_fname, O_CREAT|O_EXCL|O_WRONLY, S_IREAD|S_IWRITE); if (fp_fd < 0) { fprintf (stderr, "Cannot open log file '%s' [%s]\n", fp_fname, strerror (errno)); exit (1); } fp_log = fdopen (fp_fd, "w"); if (fp_log == NULL) { fprintf (stderr, "Cannot open log file '%s' [%s]\n", fp_fname, strerror (errno)); exit (1); } } /* construct the log entry */ time (&curtime); strftime (tbuf, sizeof (tbuf), "%Y%m%d.%H%M%S", localtime (&curtime)); fprintf (fp_log, "%s (%s-%d): ", tbuf, fp_pname, getpid ()); va_start (ap, fmt); vfprintf (fp_log, fmt, ap); va_end (ap); fprintf (fp_log, "\n"); fflush (fp_log); } snmptrapfmt-1.18/log.h0000755000000000000000000000214711167410632011646 0ustar /* * log.c * * Generic log module. * * Usage: loginit(ProcessName, NameOfLogFile, LogLevel, appendMode); * logging(level, msg, ...); * * Copyright (C) 2001 Uwe Maier * Copyright (C) 2001 - 2005 Bernd Schumacher Hewlett Packard Consulting * * Copyright (C) 2005 - 2009 Jochen Friedrich * * This program 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. * * This program 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 in the COPYING file at the * root directory of this project for more details. * */ /* --- public functions --- */ void loginit (char* pname, char* fname, int loglevel, int appendMode); void logging (int level, char* fmt, ...); snmptrapfmt-1.18/snmptrapfmt.80000755000000000000000000000443011167410632013355 0ustar .\"/*********************************************************** .\" Copyright 2001 by Hewlett-Packard GmbH .\" .\" All Rights Reserved .\" .\" ******************************************************************/ .TH SNMPTRAPFMT 8 "19 DECEMBER 2002" .UC 4 .SH NAME snmptrapfmt - Receive and log SNMP trap messages from a trap handler. .SH SYNOPSIS snmptrapfmt [-d num] [-D] [-f cfgfile] .SH DESCRIPTION Snmptrapfmt receives SNMP trap data through a local pipe. The trap data is written to this pipe by a SNMP trap handler which is called by .B "snmptrapd" (configuration is done in /etc/snmp/snmptrapd.conf) during the installation if this package. Snmptrapfmt formats the received trap data according to the specifications in the configuration file /etc/snmp/snmptrapfmt.conf (see this file for the syntax). The output of the snmptrapfmt application may be written to a log file or forwarded to the syslog daemon. .PP The option .B "-d 1" should be specified to enable tracing. Trace information is then written to the file /var/tmp/snmptrapfmt.trc. .PP If the option .B "-f cfgfile" is given, the output of the daemon is configured via the mentioned configuration file. If this option is not specified, a default output format is used. .PP If the option .B "-D" is given, the the program will daemonize into the background. .PP The syntax of the configuration file is explained in .B "/etc/snmp/snmptrapfmt.conf" ! .PP .SH "FILES" .B "/etc/init.d/snmptrapfmt" is the start/stop script. .PP .B "/etc/snmp/snmptrapfmt.conf" is the configuration file. .PP .B "/var/run/snmptrapfmt.pid" is the PID file. .PP .B "/etc/snmp/snmptrapd.conf" is the configuration file of the snmptrapd daemon, which calls the trap handler snmptrapfmthdlr. .PP .B "/usr/sbin/snmptrapfmt" is the executable of the application. .PP .B "/usr/sbin/snmptrapfmthdlr" is the executable of the trap handler. .PP .B "/var/run/snmptrapfmt.p" is the communication pipe between the trap handler snmptrapfmthdlr and the formatter snmptrapfmt. .PP .B "/var/tmp/snmptrapfmt.trc" is the trace file if the option -d is specified. .PP .B "/var/log/snmptrapfmt.log" is the log file as specified in the configuration file. .PP .SH "SEE ALSO" snmptrapfmthdlr(8), syslog(8), variables(5), RFC 1155, RFC 1156, RFC 1157, SNMP Security Internet Drafts snmptrapfmt-1.18/snmptrapfmt.c0000755000000000000000000012115711167410632013436 0ustar /* --------------------------------------------------------------------------- * * snmptrapfmt.c - receive snmp trapd from a trap handler and log them * * formatted with `indent -gnu -di16 -nut -bls -bli0 -cli2 -cdb -sc -ts2 -ncdb -c33 -cs -npcs` * --------------------------------------------------------------------------- * Copyright (C) 2001 Uwe Maier * Copyright (C) 2001 - 2005 Bernd Schumacher Hewlett Packard Consulting * * Copyright (C) 2005 - 2009 Jochen Friedrich * * This program 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. * * This program 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 in the COPYING file at the * root directory of this project for more details. * */ /* --- imprt section --- */ #include "snmptrapfmt.h" #include "log.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* --- local defines and type --- */ #define FREEMEM(x) if(x){free(x);} #define PNAME "snmptrapfmt" #define LOGFILE "/var/tmp/snmptrapfmt.trc" #define USAGE "Usage: snmptrapfmt [-f cfgfile] [-D] [-d level]\n" #define CFGNAME "/etc/snmp/snmptrapfmt.conf" #define PIDFILE "/var/run/snmptrapfmt.pid" /* definitions of standard OIDs */ #define OID_SYM_SNMPTRAPADDRESS ".iso.org.dod.internet.snmpV2.snmpModules.snmpCommunityMIB.snmpCommunityMIBObjects.snmpTrapAddress.0" #define OID_NUM_SNMPTRAPADDRESS ".1.3.6.1.6.3.18.1.3.0" #define OID_SYM_SNMPTRAPCOMMUNITY ".iso.org.dod.internet.snmpV2.snmpModules.snmpCommunityMIB.snmpCommunityMIBObjects.snmpTrapCommunity.0" #define OID_NUM_SNMPTRAPCOMMUNITY ".1.3.6.1.6.3.18.1.4.0" #define OID_SYM_SNMPTRAPENTERPRISE ".iso.org.dod.internet.snmpV2.snmpModules.snmpMIB.snmpMIBObjects.snmpTrap.snmpTrapEnterprise.0" #define OID_NUM_SNMPTRAPENTERPRISE ".1.3.6.1.6.3.1.1.4.3.0" typedef struct { /* --- a trap variable --- */ char *v_oid; /* the oid */ char *v_val; /* the value */ } t_var; typedef struct { /* --- a received trap --- */ char *s_agentname; /* hostname of agent (in PDU) */ char *s_agentaddr; /* IP of agent (in PDU) */ char *s_senderaddr; /* IP of trap sender (real) */ char *s_uptime; /* uptime of agent */ char *s_trapoid; /* trap OID (snmpV2 notation) */ char *s_community; /* trap community */ char *s_enterprise; /* trap enterprise */ int n_var; /* number of trap variables in the array */ t_var *a_var; /* array of trap variables */ } t_trap; /* --- local variables --- */ int o_loglev = 0; /* log level */ char *o_cfgname = CFGNAME; /* configuration file name */ FILE *o_logfile = NULL; /* log file handle */ long pid; /* value of already running process */ /* --- logfile configuration section --- */ /* logfile configuration constants */ #define OIDFMT_OID 0 /* print OIDs numerical */ #define OIDFMT_TEXT 1 /* print OIDs symbolically */ #define NODEFMT_IP 0 /* print nodenames as IP address */ #define NODEFMT_FQDN 1 /* print nodenames as FQDN */ #define NODEFMT_NAME 2 /* print short nodenames */ /* logfile configuration tokens */ #define TOK_SUBST "SUBST" #define TOK_OIDFMT "OIDFMT" #define TOK_NODEFMT "NODEFMT" #define TOK_VARFMT "VARFMT" #define TOK_LOGFMT "LOGFMT" #define TOK_LOGFILE "LOGFILE" #define TOK_CMUSNMP "CMUSNMP" /* logfile configuration variables */ char cfg_subst1 = ';'; /* subst this char in var values */ char cfg_subst2 = ' '; /* by this char */ int cfg_oidfmt = OIDFMT_OID; /* format for OID's */ int cfg_nodefmt = NODEFMT_FQDN; /* format for nodenames */ char *cfg_varfmt = ";[%s] %n (%t) : %v"; /* format string for vars in '$*' */ char *cfg_logfmt = "$x;$A;$e;$G;$S$*"; /* format for the logfile entry */ char *cfg_logname = NULL; /* --- local functions --- */ static void lg_print_config(); static FILE *lg_parse_config(); static char *lg_format_buffer(); static void lg_sprint_node(); static void lg_sprint_oid(); static void lg_sprint_int(); static void lg_sprint_ulong(); static void lg_sprint_ASNtype(); static void lg_sprint_var(); static void lg_sprint_string(); static void free_trap(t_trap * p_trap); static void process_trapdata(FILE * f); static int read_trapdata(FILE * f, t_trap * p_trap); static char *copy_string(char *buf); static int read_oidval(FILE * f, char **pp_oid, char **pp_val, char *msg); static char *get_generic_id(char *trapoid); static char *get_specific_id(char *trapoid); static u_long uptime_ticks(char *uptime); static long create_pidfile(void); /* ------------------------------------------------------------------------- */ char * trap_description(trap) int trap; { switch (trap) { case 0: return "Cold Start"; case 1: return "Warm Start"; case 2: return "Link Down"; case 3: return "Link Up"; case 4: return "Authentication Failure"; case 5: return "EGP Neighbor Loss"; case 6: return "Enterprise Specific"; default: return "Unknown Type"; } } /* ------------------------------------------------------------------------- */ static u_long uptime_ticks(char *uptime) { int days; int hours; int mins; int secs; int csecs; u_long ticks = 0; if (sscanf(uptime, "%d:%d:%d:%d.%d", &days, &hours, &mins, &secs, &csecs) == 5) { ticks = (60 * 60 * 24 * days + 60 * 60 * hours + 60 * mins + secs) * 100 + csecs; } return ticks; } /* ------------------------------------------------------------------------- */ static long create_pidfile(void) { long retval = -1; int pidfile; /* create new pidfile - or open existing one without destroying it */ if ((pidfile = open(PIDFILE, O_WRONLY | O_CREAT, 0644)) != -1) { /* File created or opened, now try to lock */ if (flock(pidfile, LOCK_EX | LOCK_NB) == 0) { char pid[11]; /* we have been too nice when opening file - now start at beginning */ ftruncate(pidfile, 0); lseek(pidfile, 0, SEEK_SET); sprintf(pid, "%d", getpid()); write(pidfile, pid, strlen(pid)); /* we don't close the file - so try to get output to file */ fsync(pidfile); retval = 0; } else { /* file is locked by other process */ } } else { retval = errno; } return retval; } /* ------------------------------------------------------------------------- */ int main(argc, argv) int argc; char *argv[]; { int fd_pipe; FILE *f_pipe; fd_set fdset; struct timeval timeout; int numfds; char is_daemon = FALSE; int c; /* Check the arguments */ while (1) { int option_index = 0; static struct option long_options[] = { {"D", 0, 0, 0}, {"d", 1, 0, 0}, {"f", 1, 0, 0}, {0, 0, 0, 0} }; c = getopt_long(argc, argv, "Dd:f:", long_options, &option_index); if (c == -1) break; switch (c) { case 'd': o_loglev = atoi(optarg); break; case 'D': is_daemon = TRUE; break; case 'f': o_cfgname = optarg; break; default: printf("Unknown argument %c", c); } } /* now go into daemon mode if commandline parameter is set */ if (is_daemon) { if (daemon(0, 1) != 0) { /* error occured while going into daemon mode */ fprintf(stderr, "Error while daemonizing (%s)\n", strerror(errno)); fprintf(stderr, "Aborting ...\n"); exit(1); } } /* check for existing process - allocate PID file */ if (create_pidfile() != 0) { fprintf(stderr, "Error occured while creating pid file\n"); fprintf(stderr, " not running as root or other snmptrapfmt running?\n"); fprintf(stderr, "Aborting ...\n"); /* that's it - drop off now */ exit(1); } /* In daemon mode, now redirect std* to /dev/null */ if (is_daemon) { freopen("/dev/null", "r", stdin); freopen("/dev/null", "w", stdout); freopen("/dev/null", "w", stderr); } /* Init the logfile, non append mode, i.e. create a new one */ loginit(PNAME, LOGFILE, o_loglev, 0); logging(1, "Starting ..."); /* Parse the configuration file */ o_logfile = lg_parse_config(o_cfgname); /* Print the logfile output specification */ if (o_loglev > 0) { lg_print_config(); } /* Create and open the pipe */ logging(1, "Create the pipe '%s' ...", PIPENAME); if ((mkfifo(PIPENAME, S_IWUSR | S_IRUSR) == -1) && (errno != EEXIST)) { logging(0, "Cannot create the pipe '%s' [%s]", PIPENAME, strerror(errno)); exit(1); } fd_pipe = open(PIPENAME, O_RDWR, S_IWUSR | S_IRUSR); if (fd_pipe < 0) { logging(0, "Cannot open the pipe '%s' [%s]", PIPENAME, strerror(errno)); exit(1); } f_pipe = fdopen(fd_pipe, "w+"); if (f_pipe == NULL) { logging(0, "Cannot associate stream with file handle for pipe '%s' [%s]", PIPENAME, strerror(errno)); exit(1); } logging(1, "Pipe opened for reading"); /* Main loop: sit and wait until data arrives on the pipe */ while (1) { FD_ZERO(&fdset); /* wait for data on the pipe handle */ FD_SET(fd_pipe, &fdset); timeout.tv_sec = 5; /* wait 5 seconds for data */ timeout.tv_usec = 0; numfds = select(fd_pipe + 1, &fdset, 0, 0, &timeout); switch (numfds) { case 0: logging(1, "Timeout occurred ..."); break; case -1: if (errno == EINTR) { logging(1, "Interrupted select() - continue"); continue; } else { logging(0, "Error from select() [%s]", strerror(errno)); exit(1); } break; default: logging(1, "Data available ..."); process_trapdata(f_pipe); break; } } /* not reached */ } /* ------------------------------------------------------------------------- */ /* Parse the configuration file: * - check for the tokens and set the config variables * - open the logfile and return the file pointer (or NULL if no logfile) * - syntax of configuration file (fixed text in '') * comment lines begin with '#' * file ::= line | file line * line ::= 'SUBST' '=' '\'char'\'char'\' * | 'OIDFMT' '=' ( 'text' | 'oid' ) * | 'NODEFMT' '=' ( 'ip' | 'fqdn' | 'name' ) * | 'VARFMT' '=' stringV * | 'LOGFMT' '=' stringL * | 'LOGFILE' '=' string * | 'CMUSNMP' '=' string >>>OBSOLETE<<< * string ::= '"' { char | '\"' } '"' * stringV ::= '"' { char | '%s' | '%n' | '%t' | '%v' | '%%' } '"' * stringL ::= '"' { char | '$#' | '$*' | '$x' | '$r' | '$R' * | '$e' | '$A' | '$G' | '$S' | '$T' * | '$$' * | '\n' | '\r' | '\t' | '\\' } '"' * * - Tokens and associated config variables are: * SUBST ... cfg_subst1, cfg_subst2 (both char) * OIDFMT ... cfg_oidfmt (OIDFMT_TEXT,_OID) * NODEFMT ... cfg_nodefmt (NODEFMT_IP, _FQDN, _NAME) * VARFMT ... cfg_varfmt (char*) * LOGFMT ... cfg_logfmt (char*) * LOGFILE ... cfg_logname (char*) * CMUSNMP ... cfg_cmusnmp (char*) >>>OBSOLETE<<< * */ static FILE * lg_parse_config(cfgname) char *cfgname; { FILE *cfg; FILE *f_log = NULL; char lbuf[1024]; int lno = 0; logging(1, "Parsing config file '%s'", cfgname); if (!(cfg = fopen(cfgname, "r"))) { logging(0, "Cannot open config file '%s' - %s\n", cfgname, strerror(errno)); return NULL; } while (fgets(lbuf, sizeof(lbuf), cfg)) { char *p; logging(1, "Read line '%s'", lbuf); p = strtok(lbuf, "=\n"); /* check for comment or empty lines */ lno++; if (!p || (*p == '#')) { continue; } /* check for tokens */ if (strcasecmp(TOK_SUBST, p) == 0) { char *p1 = strtok(NULL, "\n"); /* the substitution */ int ok = 1; if (!p1 || !*p1 || (*p1 != '\\')) { ok = 0; } else { p1++; cfg_subst1 = *p1++; if (*p1++ == '\\' && *p1) { cfg_subst2 = *p1; } else { ok = 0; } } if (!ok) { logging(0, "Expected: %s=\\\\\\ in file '%s',%d", TOK_SUBST, cfgname, lno); } } else if (strcasecmp(TOK_OIDFMT, p) == 0) { char *p1 = strtok(NULL, " \n"); int ok = 1; if (!p1 || !*p1) { ok = 0; } else if (strcasecmp("text", p1) == 0) { #if 0 cfg_oidfmt = OIDFMT_TEXT; #else logging(0, "Error: Format for OID must be set in /etc/snmp/snmp.conf"); cfg_oidfmt = OIDFMT_OID; #endif } else if (strcasecmp("oid", p1) == 0) { cfg_oidfmt = OIDFMT_OID; } else { ok = 0; } if (!ok) { logging(0, "Expected: %s='text' | 'oid' in file '%s',%d", TOK_OIDFMT, cfgname, lno); } } else if (strcasecmp(TOK_NODEFMT, p) == 0) { char *p1 = strtok(NULL, " \n"); int ok = 1; if (!p1) { ok = 0; } else if (strcasecmp("ip", p1) == 0) { cfg_nodefmt = NODEFMT_IP; } else if (strcasecmp("fqdn", p1) == 0) { cfg_nodefmt = NODEFMT_FQDN; } else if (strcasecmp("name", p1) == 0) { cfg_nodefmt = NODEFMT_NAME; } else { ok = 0; } if (!ok) { logging(0, "Expected: %s='ip' | 'fqdn' | 'name' in file '%s',%d", TOK_NODEFMT, cfgname, lno); } } else if ((strcasecmp(TOK_VARFMT, p) == 0) || (strcasecmp(TOK_LOGFMT, p) == 0) || (strcasecmp(TOK_LOGFILE, p) == 0) || (strcasecmp(TOK_CMUSNMP, p) == 0)) { char *p1 = strtok(NULL, "\n"); int ok = 1; if (!p1) { ok = 0; } else if (*p1 == '\"') { char *p2 = strrchr(++p1, '\"'); if (p2) { char *pval; *p2 = '\0'; pval = strdup(p1); if (strcasecmp(TOK_VARFMT, p) == 0) { cfg_varfmt = pval; } else if (strcasecmp(TOK_LOGFMT, p) == 0) { cfg_logfmt = pval; } else if (strcasecmp(TOK_LOGFILE, p) == 0) { cfg_logname = pval; } else if (strcasecmp(TOK_CMUSNMP, p) == 0) { logging(0, "The option 'CMUSNMP' is obsolete"); } } else { ok = 0; } } else { ok = 0; } if (!ok) { logging(0, "Expected: %s=\"\" in file '%s',%d", p, cfgname, lno); } } else { logging(0, "Missing token in file '%s',%d", cfgname, lno); } } fclose(cfg); /* now open the log file (if any) */ if (cfg_logname && *cfg_logname) { f_log = fopen(cfg_logname, "a"); if (!f_log) { logging(0, "Cannot append to logfile '%s' [%s]", cfg_logname, strerror(errno)); } } return f_log; } /* ------------------------------------------------------------------------- */ /* print the logfile configuration values */ static void lg_print_config() { char *oidfmt[2]; char *nodefmt[3]; oidfmt[OIDFMT_OID] = "oid"; oidfmt[OIDFMT_TEXT] = "text"; nodefmt[NODEFMT_IP] = "ip"; nodefmt[NODEFMT_FQDN] = "fqdn"; nodefmt[NODEFMT_NAME] = "name"; logging(1, "Configuration variables:"); logging(1, " cfg_subst1 = '%c'", cfg_subst1); logging(1, " cfg_subst2 = '%c'", cfg_subst2); logging(1, " cfg_oidfmt = %s", oidfmt[cfg_oidfmt]); logging(1, " cfg_nodefmt = %s", nodefmt[cfg_nodefmt]); logging(1, " cfg_varfmt = \"%s\"", cfg_varfmt); logging(1, " cfg_logfmt = \"%s\"", cfg_logfmt); logging(1, " cfg_logname = \"%s\"", (cfg_logname && *cfg_logname ? cfg_logname : "")); } /* ------------------------------------------------------------------------- */ /* Allocate and format the output buffer. * Return the pointer to the allocated area or NULL if an error occurred. */ static char * lg_format_buffer(t_trap * p_trap, time_t trap_time) { static char buf[4000]; /* the output buffer */ char *cPtr; /* points to next character in output buf */ int bRem; /* number of remaining chars in output buf */ /* (starting with cPtr) */ char *lPtr; /* points to next char in log format */ int seqno; /* sequence number of variable */ logging(1, "Formatting the trap data with '%s' ...", cfg_logfmt); /* init */ bRem = sizeof(buf) - 1; /* leave space for EOS */ cPtr = buf; /* process the log format string */ for (lPtr = cfg_logfmt; *lPtr; lPtr++) { int l; /* local */ /* Assertion: bRem > 0 */ switch (*lPtr) { case '\\': switch (*++lPtr) { case 'n': *cPtr++ = '\n'; break; case 'r': *cPtr++ = '\r'; break; case 't': *cPtr++ = '\t'; break; default: *cPtr++ = *lPtr; break; } bRem--; break; case '$': switch (*++lPtr) { case 'x': /* time trap was received */ l = strftime(cPtr, bRem, "%Y%m%d.%H%M%S", localtime(&trap_time)); cPtr += l; bRem -= l; break; case 'A': /* agents address */ if (p_trap->s_agentaddr == NULL) lg_sprint_node(p_trap->s_agentname, cfg_nodefmt, &cPtr, &bRem); else lg_sprint_node(p_trap->s_agentaddr, cfg_nodefmt, &cPtr, &bRem); break; case 'r': /* implied source (agent address) */ lg_sprint_node(p_trap->s_agentname, cfg_nodefmt, &cPtr, &bRem); break; case 'R': /* true source (peer address) */ lg_sprint_node(p_trap->s_senderaddr, cfg_nodefmt, &cPtr, &bRem); break; case 'e': /* enterprise */ lg_sprint_oid(p_trap->s_enterprise, cfg_oidfmt, &cPtr, &bRem); break; case 'G': /* generic trap number */ lg_sprint_string(get_generic_id(p_trap->s_trapoid), &cPtr, &bRem); break; case 'S': /* specific trap number */ lg_sprint_string(get_specific_id(p_trap->s_trapoid), &cPtr, &bRem); break; case 'T': /* agent's sysUpTime in 1/100 seconds */ lg_sprint_ulong(uptime_ticks(p_trap->s_uptime), "%lu", &cPtr, &bRem); break; case '#': /* number of variables in trap */ lg_sprint_int(p_trap->n_var, "%d", &cPtr, &bRem); break; case '*': /* all variables in trap */ for (seqno = 1; seqno <= p_trap->n_var; seqno++) { lg_sprint_var(&p_trap->a_var[seqno - 1], cfg_varfmt, seqno, &cPtr, &bRem); } break; case '$': /* insert '$' */ *cPtr++ = '$'; bRem--; break; default: /* insert the characters verbatim */ *cPtr++ = '$'; *cPtr++ = *lPtr; bRem -= 2; } break; default: *cPtr++ = *lPtr; bRem--; break; } /* leave if no more space is left */ if (bRem == 0) { logging(0, "No more internal space left for remaining format '%s'", lPtr); break; } } *cPtr = '\0'; /* Debug output */ logging(1, "Output buffer: '%s'", buf); /* this is the result */ return buf; } /* ------------------------------------------------------------------------- */ /* print a nodes ip-address, fully qualified domain name or * short hostname according to the specified format into the * output buffer */ static void lg_sprint_node(name, nodeFmt, cPPtr, bRemP) char *name; /* node name (or ip) */ int nodeFmt; /* NODEFMT_IP/_FQDN/_NAME */ char **cPPtr; /* address of pointer to current outchar */ int *bRemP; /* address of counter of remaining chars */ { char lbuf[80]; /* local buffer for result */ int l; struct hostent *hent = gethostbyname(name); logging(1, "lg_sprint_node(%s, ...)", name); switch (nodeFmt) { case NODEFMT_FQDN: /* use FQDN (resolver) */ case NODEFMT_NAME: /* use the short name (hostname) */ if (hent) { sprintf(lbuf, "%s", hent->h_name); } else { /* no result, use the passed name instead */ sprintf(lbuf, "%s", name); } if (nodeFmt == NODEFMT_NAME) { /* strip the domain part */ char *p = strchr(lbuf, '.'); if (p) { *p = '\0'; } } break; case NODEFMT_IP: /* use ip address */ default: /* shouldn't happen */ if (hent) { struct in_addr in; memcpy(&in.s_addr, hent->h_addr, sizeof(in.s_addr)); sprintf(lbuf, "%s", inet_ntoa(in)); } else { sprintf(lbuf, "%s", name); } break; } /* insert the local buffer into the output buffer */ l = strlen(lbuf); if (l <= *bRemP) { strncpy(*cPPtr, lbuf, l); (*cPPtr) += l; (*bRemP) -= l; } else { logging(0, "No more internal space left for '%s'", lbuf); } } /* ------------------------------------------------------------------------- */ /* print an oid according to the specified format into the output buffer */ static void lg_sprint_oid(oidP, oidFmt, cPPtr, bRemP) char *oidP; /* the OID */ int oidFmt; /* OIDFMT_TEXT/_OID */ char **cPPtr; /* address of pointer to current outchar */ int *bRemP; /* address of counter of remaining chars */ { char lbuf[1024]; /* local buffer */ int l; logging(1, "lg_sprint_oid(%s, ...)", oidP); switch (oidFmt) { case OIDFMT_TEXT: /* use textual format for the oid */ sprintf(lbuf, "%s", oidP ? oidP : "(null)"); break; case OIDFMT_OID: /* usenumerical format for the oid */ default: /* shouldn't happen */ sprintf(lbuf, "%s", oidP ? oidP : "(null)"); break; } /* insert the local buffer into the output buffer */ l = strlen(lbuf); if (l <= *bRemP) { strncpy(*cPPtr, lbuf, l); (*cPPtr) += l; (*bRemP) -= l; } else { logging(0, "No more internal space left for '%s'", lbuf); } } /* ------------------------------------------------------------------------- */ /* print a string according to the specified format into the output buffer */ static void lg_sprint_string(stringP, cPPtr, bRemP) char *stringP; /* the string */ char **cPPtr; /* address of pointer to current outchar */ int *bRemP; /* address of counter of remaining chars */ { int l; logging(1, "lg_sprint_string(%s, ...)", stringP); /* insert the string into the output buffer */ l = strlen(stringP); if (l <= *bRemP) { strncpy(*cPPtr, stringP, l); (*cPPtr) += l; (*bRemP) -= l; } else { logging(0, "No more internal space left for '%s'", stringP); } } /* ------------------------------------------------------------------------- */ /* print an integer according to the specified format into the output buffer */ static void lg_sprint_int(ival, iFmt, cPPtr, bRemP) int ival; /* the integer value */ char *iFmt; /* the format string */ char **cPPtr; /* address of pointer to current outchar */ int *bRemP; /* address of counter of remaining chars */ { char lbuf[20]; /* local buffer */ int l; logging(1, "lg_spring_int(%d, ...)", ival); /* fill the local buffer */ sprintf(lbuf, iFmt, ival); /* insert the local buffer into the output buffer */ l = strlen(lbuf); if (l <= *bRemP) { strncpy(*cPPtr, lbuf, l); (*cPPtr) += l; (*bRemP) -= l; } else { logging(0, "No more internal space left for '%s'", lbuf); } } /* ------------------------------------------------------------------------- */ /* print an u_long according to the specified format into the output buffer */ static void lg_sprint_ulong(uval, uFmt, cPPtr, bRemP) unsigned long uval; /* the integer value */ char *uFmt; /* the format string */ char **cPPtr; /* address of pointer to current outchar */ int *bRemP; /* address of counter of remaining chars */ { char lbuf[20]; /* local buffer */ int l; logging(1, "lg_sprint_ulong(%lu, ...)", uval); /* fill the local buffer */ sprintf(lbuf, uFmt, uval); /* insert the local buffer into the output buffer */ l = strlen(lbuf); if (l <= *bRemP) { strncpy(*cPPtr, lbuf, l); (*cPPtr) += l; (*bRemP) -= l; } else { logging(0, "No more internal space left for '%s'", lbuf); } } /* ------------------------------------------------------------------------- */ /* print an ASN.1 type ito the output buffer */ static void lg_sprint_ASNtype(asntype, cPPtr, bRemP) u_char asntype; /* ASN.1 type */ char **cPPtr; /* address of pointer to current outchar */ int *bRemP; /* address of counter of remaining chars */ { char *p; int l; logging(1, "lg_sprint_ASNtype(%c, ...)", asntype); switch (asntype) { case ASN_BOOLEAN: p = "Boolean"; break; case ASN_INTEGER: p = "Integer"; break; case ASN_BIT_STR: p = "BitString"; break; case ASN_OCTET_STR: p = "OctetString"; break; case ASN_NULL: p = "Null"; break; case ASN_OBJECT_ID: p = "ObjectIdentifier"; break; case ASN_OPAQUE: p = "Opaque"; break; case ASN_TIMETICKS: p = "Timeticks"; break; case ASN_GAUGE: p = "Gauge"; break; case ASN_COUNTER: p = "Counter"; break; case ASN_IPADDRESS: p = "IpAddress"; break; case ASN_UINTEGER: p = "UnsignedInteger32"; break; default: p = "BadType"; break; } /* insert the local buffer into the output buffer */ l = strlen(p); if (l <= *bRemP) { strncpy(*cPPtr, p, l); (*cPPtr) += l; (*bRemP) -= l; } else { logging(0, "No more internal space left for '%s'", p); } /* temporary close the string */ **cPPtr = '\0'; } /* ------------------------------------------------------------------------- */ /* print a snmp variable according to the specified format into the * output buffer */ static void lg_sprint_var(var, vFmt, seqno, cPPtr, bRemP) t_var *var; /* the snmp variable */ char *vFmt; /* the output format string */ int seqno; /* current sequence number */ char **cPPtr; /* address of pointer to current outchar */ int *bRemP; /* address of counter of remaining chars */ { char *vPtr; /* current varfmt character */ logging(1, "lg_sprint_var(%s/%s, %s, %d, ...)", var->v_oid, var->v_val, vFmt, seqno); /* process the variable format */ for (vPtr = vFmt; *vPtr; vPtr++) { switch (*vPtr) { case '\\': if (*bRemP > 0) { switch (*++vPtr) { case 'n': *(*cPPtr)++ = '\n'; (*bRemP)--; break; case 'r': *(*cPPtr)++ = '\r'; (*bRemP)--; break; case 't': *(*cPPtr)++ = '\t'; (*bRemP)--; break; default: *(*cPPtr)++ = *vPtr; (*bRemP)--; } } break; case '%': /* special char follows */ switch (*++vPtr) { case 's': /* the sequence number */ lg_sprint_int(seqno, "%d", cPPtr, bRemP); break; case 'n': /* the name */ lg_sprint_oid(var->v_oid, cfg_oidfmt, cPPtr, bRemP); break; case 't': /* the type */ logging(1, "Type info not available - using ASN_OCTET_STR"); lg_sprint_ASNtype(ASN_OCTET_STR, cPPtr, bRemP); break; case 'v': /* the value */ /* special handling for some (distinguishable) types */ if (var->v_val[0] == '"') { /* we got a string: strip delims and substitute characters */ int l = strlen(var->v_val); char *p; if ((l > 0) && (var->v_val[l - 1] == '"')) { var->v_val[l - 1] = '\0'; l--; } if (l > 0) { for (p = var->v_val + 1; *p; p++) { if (*p == cfg_subst1) { *p = cfg_subst2; } } } lg_sprint_string(var->v_val + 1, cPPtr, bRemP); } else { /* Standard */ lg_sprint_string(var->v_val, cPPtr, bRemP); } break; case '%': /* insert '%' */ if (*bRemP > 0) { *(*cPPtr)++ = '%'; (*bRemP)--; } break; default: /* insert the two chars verbatim */ if (*bRemP > 1) { *(*cPPtr)++ = '%'; *(*cPPtr)++ = *vPtr; (*bRemP) -= 2; } else { *bRemP = 0; } break; } break; default: /* insert char verbatim */ if (*bRemP > 0) { *(*cPPtr)++ = *vPtr; (*bRemP)--; } } if (*bRemP <= 0) { logging(0, "No more internal space left for variable %d", seqno); *bRemP = 0; break; } } } /* ------------------------------------------------------------------------- */ /* Read the trap data from the pipe and store the data * - Returns 0 if ok, -1 if error */ static int read_trapdata(FILE * f, t_trap * p_trap) { char *oid; char *val; /* Read the constant header */ if (read_oidval(f, &p_trap->s_agentname, NULL, "Missing AGENTNAME from handler") == -1) { return -1; } logging(1, "Store: AGENTNAME := '%s'", p_trap->s_agentname); if (read_oidval(f, &p_trap->s_senderaddr, NULL, "Missing SENDERIP from handler") == -1) { return -1; } logging(1, "Store: SENDERADDR := '%s'", p_trap->s_senderaddr); if (read_oidval(f, NULL, &p_trap->s_uptime, "Missing UPTIME from handler") == -1) { return -1; } logging(1, "Store: UPTIME := '%s'", p_trap->s_uptime); if (read_oidval(f, NULL, &p_trap->s_trapoid, "Missing TRAPOID from handler") == -1) { return -1; } logging(1, "Store: TRAPOID := '%s'", p_trap->s_trapoid); /* Now read all remaining OID/VAL pairs */ while (read_oidval(f, &oid, &val, NULL) == 0) { if (oid[0] == '\0') { /* End of data from handler */ logging(1, "End of handler data reached"); free(oid); free(val); break; } else if ((strcmp(oid, OID_SYM_SNMPTRAPADDRESS) == 0) || (strcmp(oid, OID_NUM_SNMPTRAPADDRESS) == 0)) { free(oid); p_trap->s_agentaddr = val; logging(1, "Store: SNMPTRAPADDRESS := '%s'", p_trap->s_agentaddr); } else if ((strcmp(oid, OID_SYM_SNMPTRAPCOMMUNITY) == 0) || (strcmp(oid, OID_NUM_SNMPTRAPCOMMUNITY) == 0)) { free(oid); p_trap->s_community = val; logging(1, "Store: SNMPTRAPCOMMUNITY := '%s'", p_trap->s_community); } else if ((strcmp(oid, OID_SYM_SNMPTRAPENTERPRISE) == 0) || (strcmp(oid, OID_NUM_SNMPTRAPENTERPRISE) == 0)) { free(oid); p_trap->s_enterprise = val; logging(1, "Store: SNMPTRAPENTERPRISE := '%s'", p_trap->s_enterprise); } else { /* store as a variable */ void *p; p_trap->n_var++; p = realloc(p_trap->a_var, p_trap->n_var * sizeof(t_var)); if (p == NULL) { logging(0, "Out of memory - aborting"); exit(1); } p_trap->a_var = p; p_trap->a_var[p_trap->n_var - 1].v_oid = oid; p_trap->a_var[p_trap->n_var - 1].v_val = val; logging(1, "Store var %d: '%s' := '%s'", p_trap->n_var, oid, val); } } return 0; } /* ------------------------------------------------------------------------- */ /* Read the trap data from the handlers pipe and format the output buffer */ void process_trapdata(FILE * f) { char *buf; t_trap trapdata; /* Fetch the trap data */ memset(&trapdata, '\0', sizeof(trapdata)); if (read_trapdata(f, &trapdata) == -1) { logging(0, "Error reading trap data - skip formatting"); free_trap(&trapdata); return; } /* Format the trap data */ buf = lg_format_buffer(&trapdata, time(NULL)); /* And now log the data according to the configuration */ if (!buf) { logging(0, "Error: Cannot allocate/format output buffer"); } else if (o_logfile) { logging(1, "Logging to file '%s'", buf); fprintf(o_logfile, "%s\n", buf); fflush(o_logfile); } else { logging(1, "Logging to syslog 'LOG_WARNING:%s'", buf); syslog(LOG_WARNING, "%s\n", buf); } free_trap(&trapdata); } /* ------------------------------------------------------------------------- */ /* Read a OID/VAL pair from the pipe, allocate memory and store the pointers * (if specified). If an error occurs, emit msg (if any) and return -1, else * return 0. */ static int read_oidval(FILE * f, char **pp_oid, char **pp_val, char *msg) { char rbuf[1024]; if (fgets(rbuf, sizeof(rbuf), f) == NULL) { if (msg) { logging(0, msg); } return -1; } else { /* look for a delimiting blank */ char *p_del; int l; /* strip the trailing EOL */ l = strlen(rbuf); if ((l > 0) && (rbuf[l - 1] == '\n')) { rbuf[l - 1] = '\0'; } logging(1, "Read from handler: '%s'", rbuf); /* split the line (if two components are on the line) */ p_del = strchr(rbuf, ' '); if (p_del) { *p_del = '\0'; } /* fetch and store the oid */ if (pp_oid) { *pp_oid = copy_string(rbuf); } /* fetch and store the value */ if (pp_val) { *pp_val = copy_string(p_del ? p_del + 1 : rbuf); } logging(1, " Split: OID = '%s', VAL = '%s'", rbuf, (p_del ? p_del + 1 : rbuf)); } return 0; } /* ------------------------------------------------------------------------- */ /* Copy a string into allocated memory (but do not copy the trailing EOL) */ static char * copy_string(char *buf) { char *s; int l = strlen(buf); if ((l > 0) && (buf[l - 1] == '\n')) { buf[--l] = '\0'; } s = strdup(buf); if (s == NULL) { logging(0, "Out of memory - aborting"); exit(1); } return s; } /* ------------------------------------------------------------------------- */ /* Free a trap data structure */ static void free_trap(t_trap * p_trap) { if (p_trap) { int i; FREEMEM(p_trap->s_agentname); FREEMEM(p_trap->s_agentaddr); FREEMEM(p_trap->s_senderaddr); FREEMEM(p_trap->s_uptime); FREEMEM(p_trap->s_trapoid); FREEMEM(p_trap->s_community); FREEMEM(p_trap->s_enterprise); for (i = 0; i < p_trap->n_var; i++) { FREEMEM(p_trap->a_var[i].v_oid); FREEMEM(p_trap->a_var[i].v_val); } if (p_trap->n_var > 0) { FREEMEM(p_trap->a_var); } } } /* ------------------------------------------------------------------------- */ /* extract the Generid ID from the Trap OID by checking the second to last * component of the Trap OID */ static char * get_generic_id(char *trapoidP) { char *p_delim; char trapoid[2048]; static char buf[80]; /* Save the trap OID */ strcpy(trapoid, trapoidP); /* look for the last period */ p_delim = strrchr(trapoid, '.'); if (p_delim) { char *p_delim0; *p_delim = '\0'; /* now look for the previous delim */ p_delim0 = strrchr(trapoid, '.'); if (p_delim0) { /* inspect the second to last component */ if (strcmp(p_delim0 + 1, "0") == 0) { /* this is a specific trap, thus the GID is 6 */ sprintf(buf, "%d", SNMP_TRAP_ENTERPRISESPECIFIC); } else { /* this is a generic trap, return the last component * (but decrement if numeric) */ if (isdigit(p_delim[1])) { int gid; sscanf(p_delim + 1, "%d", &gid); sprintf(buf, "%d", gid - 1); } else { strcpy(buf, p_delim + 1); } } } else { /* only one delimiter in this trap OID, must be generic */ if (isdigit(p_delim[1])) { int gid; sscanf(p_delim + 1, "%d", &gid); sprintf(buf, "%d", gid - 1); } else { strcpy(buf, p_delim + 1); } } } else { /* no delimiter in this trap, must be generic */ if (isdigit(trapoid[0])) { int gid; sscanf(trapoid, "%d", &gid); sprintf(buf, "%d", gid - 1); } else { strcpy(buf, trapoid); } } return buf; } /* ------------------------------------------------------------------------- */ /* extract the Specific ID from the Trap OID */ static char * get_specific_id(char *trapoidP) { char *p_delim; char trapoid[2048]; static char buf[80]; /* Save the trap OID */ strcpy(trapoid, trapoidP); /* look for the last period */ p_delim = strrchr(trapoid, '.'); if (p_delim) { char *p_delim0; *p_delim = '\0'; /* now look for the previous delim */ p_delim0 = strrchr(trapoid, '.'); if (p_delim0) { /* inspect the second to last component */ if (strcmp(p_delim0 + 1, "0") == 0) { /* this is a specific trap */ strcpy(buf, p_delim + 1); } else { /* this is a generic trap */ strcpy(buf, "0"); } } else { /* only one delimiter in this trap OID, must be generic */ strcpy(buf, "0"); } } else { /* no delimiter in this trap, must be generic */ strcpy(buf, "0"); } return buf; } /* ------------------------------------------------------------------------- */ snmptrapfmt-1.18/snmptrapfmt.conf0000644000000000000000000000504311167410632014131 0ustar # ----------------------------------------------------------------------------- # Configuration file for snmptrapfmt-1.0 # # Comment lines start with the character '#' # Blank lines are ignored # # In order to configure the log output, use the following keywords. # ----------------------------------------------------------------------------- # - SUBST=\a\b\ # substitute char 'a' with 'b' in variable values # Default: \;\ \ SUBST=\#\ \ # NOTE: The OID Format has to be set in the /etc/snmp/snmp.conf. # See SNMP.CONF(5). It is valid for all snmp programs of package SNMPD. # You can specify it with: printNumericOids (1|yes|true|0|no|false) # # snmptrapfmt uses it in formats $e $* # NODEFMT=ip | fqdn | name # print nodenames as IP address (ip), as fully qualified domain name (fqdn) # or in the short form (name); # used in formats $A $R $r $* # Default: fqdn NODEFMT=ip # VARFMT="format string for variables" # specify the output of variables when using the '$*' format specifier # in the logfile format; # special chars recognized: # %s ... sequence number of the variable # %n ... the name of the variable (see OIDFMT) # %t ... the type of the variable # %v ... the value of the variable # used in format $* # Default: ";[%s] %n (%t) : %v" #VARFMT="\n\t[%s] %n (%t) : %v" VARFMT="#[%s] %n (%t) : %v" # LOGFMT="format string for logfile entry" # specify the output of the logfile entry; # special char recognized: # \n ... newline # \r ... carriage return # \t ... horizontal tab # \\ ... backslash # $# ... number of variables in the trap # $* ... print all variables of the trap as specified in VARFMT # $x ... date the trap was received (YYYYMMDD.HHMMSS) # $r ... the implied source of the trap (agent address) (see NODEFMT) # $R ... the true source of the trap (via transport layer) (see NODEFMT) # $$ ... the character '$' # $e ... the enterprise of the trap as specified in OIDFMT # $A ... the trap agent address as specified in NODEFMT # $G ... the trap generic number # $S ... the trap specific number # $T ... the trap's sysUpTime timestamp (in seconds) # ordinary characters represent themselfes # Default: "$x;$A;$e;$G;$S$*" #LOGFMT="\n$$x=$x\n$$r=$r\n$$R=$R\n$$e=$e\n$$A=$A\n$$G=$G\n$$S=$S\n$$T=$T\n$$#=$#$*" LOGFMT="$x#$A#$e#$G#$S#$T$*" # LOGFILE="path to logfile" # specify the pathname of the logfile; if none or the empty string "" is # given, use the syslog() mechanism to log the traps # Default: "" LOGFILE="/var/log/snmptrapfmt.log" snmptrapfmt-1.18/snmptrapfmt.h0000644000000000000000000000200511167410632013426 0ustar /* * snmptrapfmt.h * * Definitions for the snmptrapfmthdlr/snmptrapfmt pair. * * Copyright (C) 2001 Uwe Maier * Copyright (C) 2001 - 2005 Bernd Schumacher Hewlett Packard Consulting * * Copyright (C) 2005 - 2009 Jochen Friedrich * * This program 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. * * This program 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 in the COPYING file at the * root directory of this project for more details. * */ /* * The name of the communication fifo between the two processes. */ #define PIPENAME "/var/run/snmptrapfmt.p" snmptrapfmt-1.18/snmptrapfmthdlr.80000755000000000000000000000224211167410632014226 0ustar .\"/*********************************************************** .\" Copyright 2001 by Hewlett-Packard GmbH .\" .\" All Rights Reserved .\" .\" ******************************************************************/ .TH SNMPTRAPFMTHDLR 8 "30 APRIL 2001" .UC 4 .SH NAME snmptrapfmthdlr - Trap handler for receiving SNMP Traps .SH SYNOPSIS snmptrapfmthdlr .SH DESCRIPTION Snmptrapfmthdlr is an application that receives SNMP traps from snmptrapd as a trap handler. The trap data is then forwarded to a local pipe from which a formatting application picks it up and does further processing. The formatting application is snmptrapfmt. .PP .SH "FILES" .B "/etc/snmp/snmptrapd.conf" is the configuration file of the snmptrapd daemon, which calls the trap handler snmptrapfmthdlr. .PP .B "/usr/sbin/snmptrapfmt" is the executable of the formatting application. .PP .B "/usr/sbin/snmptrapfmthdlr" is the executable of the trap handler. .PP .B "/var/run/snmptrapfmt.p" is the communication pipe between the trap handler snmptrapfmthdlr and the formatter snmptrapfmt. .PP .B "/var/tmp/snmptrapfmt.trc" is the error file of the application. .PP .SH "SEE ALSO" snmptrapfmt(8) snmptrapfmt-1.18/snmptrapfmthdlr.c0000644000000000000000000000617311167410632014305 0ustar /* * snmptrapfmthdlr.c * * This is the trap handler which is called by 'snmptrapd' * * Usage: snmptrapfmthdlr [-d loglev] * * Copyright (C) 2001 Uwe Maier * Copyright (C) 2001 - 2005 Bernd Schumacher Hewlett Packard Consulting * * Copyright (C) 2005 - 2009 Jochen Friedrich * * This program 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. * * This program 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 in the COPYING file at the * root directory of this project for more details. * */ /* --- import section --- */ #include "snmptrapfmt.h" #include "log.h" #include #include #include #include #include #include #include /* --- local defines --- */ #define PNAME "snmptrapfmthdlr" #define LOGFILE "/var/tmp/snmptrapfmt.trc" /* --- local types --- */ /* --- local variables --- */ int o_loglev = 0; /* the log level */ /* --- local functions --- */ /* -------------------------------------------------------------------------- */ int main (int argc, char **argv) { int fd; /* the handle for the pipe */ char inbuf[8192]; /* the read buffer */ ssize_t rcnt; /* number of chars read from stdin */ /* * Check the arguments */ if ((argc > 2) && (strcmp (argv[1], "-d") == 0)) { o_loglev = atoi (argv[2]); } /* Init log file handling, append mode is on */ loginit (PNAME, LOGFILE, o_loglev, 1); logging (1, "Traphandler started ..."); /* * Check if the named pipe exists and a reader has opened. * If not, the snmptrapfmt daemon does not run and this trap handlers * existence is obsolete ... */ fd = open (PIPENAME, O_WRONLY | O_NONBLOCK); if (fd == -1) { logging (0, "Error opening pipe '%s' [%s]", PIPENAME, strerror (errno)); exit (1); } logging (1, "Opened pipe '%s'", PIPENAME); /* * Read all data from stdin and forward to the pipe */ while ((rcnt = read (0, inbuf, sizeof (inbuf))) > 0) { logging (1, "Read line from stdin: '%s'", inbuf); if (rcnt != write (fd, inbuf, rcnt)) { logging (0, "Error writing to pipe '%s' [%s]", PIPENAME, strerror (errno)); close (fd); exit (1); } } if (write (fd, "\n", 1) != 1) { logging (0, "Error writing EOD to pipe '%s' [%s]", PIPENAME, strerror (errno)); close (fd); exit (1); } logging (1, "Wrote EOD to pipe"); if (rcnt < 0) { logging (0, "Error reading from stdin [%s]", strerror (errno)); } close (fd); logging (1, "Traphandler terminated."); return (rcnt == 0 ? 0 : 1); } /* -------------------------------------------------------------------------- */ snmptrapfmt-1.18/test/0000755000000000000000000000000011167410632011664 5ustar snmptrapfmt-1.18/test/snmptrapfmt.conf0000755000000000000000000000506411167410632015116 0ustar # ----------------------------------------------------------------------------- # Configuration file for snmptrapfmt-1.0 # # Comment lines start with the character '#' # Blank lines are ignored # # In order to configure the log output, use the following keywords. # ----------------------------------------------------------------------------- # - SUBST=\a\b\ # substitute char 'a' with 'b' in variable values # Default: \;\ \ SUBST=\#\ \ # NOTE: The OIDFMT has to be set in the /etc/snmp/snmp.conf file and is # valid for all snmp programs of package SNMPD. It is ignored here. # - OIDFMT=text | oid # print OIDs symbolically (text) or numerical (oid); # used in formats $e $* # Default: oid #OIDFMT=text # NODEFMT=ip | fqdn | name # print nodenames as IP address (ip), as fully qualified domain name (fqdn) # or in the short form (name); # used in formats $A $R $r $* # Default: fqdn NODEFMT=ip # VARFMT="format string for variables" # specify the output of variables when using the '$*' format specifier # in the logfile format; # special chars recognized: # %s ... sequence number of the variable # %n ... the name of the variable (see OIDFMT) # %t ... the type of the variable # %v ... the value of the variable # used in format $* # Default: ";[%s] %n (%t) : %v" #VARFMT="\n\t[%s] %n (%t) : %v" VARFMT="#[%s] %n (%t) : %v" # LOGFMT="format string for logfile entry" # specify the output of the logfile entry; # special char recognized: # \n ... newline # \r ... carriage return # \t ... horizontal tab # \\ ... backslash # $# ... number of variables in the trap # $* ... print all variables of the trap as specified in VARFMT # $x ... date the trap was received (YYYYMMDD.HHMMSS) # $r ... the implied source of the trap (agent address) (see NODEFMT) # $R ... the true source of the trap (via transport layer) (see NODEFMT) # $$ ... the character '$' # $e ... the enterprise of the trap as specified in OIDFMT # $A ... the trap agent address as specified in NODEFMT # $G ... the trap generic number # $S ... the trap specific number # $T ... the trap's sysUpTime timestamp (in seconds) # ordinary characters represent themselfes # Default: "$x;$A;$e;$G;$S$*" #LOGFMT="\n$$x=$x\n$$r=$r\n$$R=$R\n$$e=$e\n$$A=$A\n$$G=$G\n$$S=$S\n$$T=$T\n$$#=$#$*" LOGFMT="$x#$A#$e#$G#$S#$T$*" # LOGFILE="path to logfile" # specify the pathname of the logfile; if none or the empty string "" is # given, use the syslog() mechanism to log the traps # Default: "" LOGFILE="/var/log/snmptrapfmt.log" snmptrapfmt-1.18/test/testtraps.sh0000755000000000000000000000242511167410632014257 0ustar #!/bin/sh # # Send some test traps if [ $# -eq 0 ]; then echo "usage: $(basename $0) target-host" exit 1 fi # V1 Traps echo "Send V1 Trap ..." snmptrap -v 1 -c trap-comm $1 \ .1.3.6.1.4.1.11.2.17.1 \ 192.168.0.1 \ 6 123456 18012202 \ .1.3.6.1.4.1.11.2.17.2.1 s "First \"Arg\" (with quotes)" \ .1.3.6.1.4.1.11.2.17.2.2 i 504 \ .1.3.6.1.4.1.11.2.17.2.3 a 192.168.0.78 \ .1.3.6.1.4.1.11.2.17.2.4 s "String with hash (#)" snmptrap -v 1 -c trap-comm $1 \ .1.3.6.1.4.1.11.2.17.1 \ 192.168.0.1 \ 1 0 18012203 echo "Send V2 Trap ..." snmptrap -v2c -c geheim $1 \ 18012204 \ .1.3.6.1.4.1.11.2.17.1.0.123457 \ .1.3.6.1.6.3.18.1.3.0 a 192.168.0.1 \ .1.3.6.1.6.3.18.1.4.0 s geheim \ .1.3.6.1.6.3.1.1.4.3.0 o .1.3.6.1.4.1.11.2.17.1 \ .1.3.6.1.4.1.11.2.17.2.1 s "First \"Arg\" (with quotes)" \ .1.3.6.1.4.1.11.2.17.2.2 i 504 \ .1.3.6.1.4.1.11.2.17.2.3 a 192.168.0.78 \ .1.3.6.1.4.1.11.2.17.2.4 s "String with hash (#)" snmptrap -v2c -c geheim $1 \ 18012205 \ .1.3.6.1.6.3.1.1.5.2 \ .1.3.6.1.6.3.18.1.3.0 a 192.168.0.1 \ .1.3.6.1.6.3.18.1.4.0 s geheim \ .1.3.6.1.6.3.1.1.4.3.0 o .1.3.6.1.4.1.11.2.17.1