diff options
Diffstat (limited to 'plugins/imfile')
| -rw-r--r-- | plugins/imfile/Makefile.am | 6 | ||||
| -rw-r--r-- | plugins/imfile/Makefile.in | 494 | ||||
| -rw-r--r-- | plugins/imfile/imfile.c | 509 |
3 files changed, 1009 insertions, 0 deletions
diff --git a/plugins/imfile/Makefile.am b/plugins/imfile/Makefile.am new file mode 100644 index 0000000..23b64d1 --- /dev/null +++ b/plugins/imfile/Makefile.am @@ -0,0 +1,6 @@ +pkglib_LTLIBRARIES = imfile.la + +imfile_la_SOURCES = imfile.c +imfile_la_CPPFLAGS = -I$(top_srcdir) $(pthreads_cflags) +imfile_la_LDFLAGS = -module -avoid-version +imfile_la_LIBADD = diff --git a/plugins/imfile/Makefile.in b/plugins/imfile/Makefile.in new file mode 100644 index 0000000..39b7450 --- /dev/null +++ b/plugins/imfile/Makefile.in @@ -0,0 +1,494 @@ +# Makefile.in generated by automake 1.10 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006 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@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +subdir = plugins/imfile +DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/configure.ac +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(install_sh) -d +CONFIG_HEADER = $(top_builddir)/config.h +CONFIG_CLEAN_FILES = +am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; +am__vpath_adj = case $$p in \ + $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \ + *) f=$$p;; \ + esac; +am__strip_dir = `echo $$p | sed -e 's|^.*/||'`; +am__installdirs = "$(DESTDIR)$(pkglibdir)" +pkglibLTLIBRARIES_INSTALL = $(INSTALL) +LTLIBRARIES = $(pkglib_LTLIBRARIES) +imfile_la_DEPENDENCIES = +am_imfile_la_OBJECTS = imfile_la-imfile.lo +imfile_la_OBJECTS = $(am_imfile_la_OBJECTS) +imfile_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ + $(imfile_la_LDFLAGS) $(LDFLAGS) -o $@ +DEFAULT_INCLUDES = -I. -I$(top_builddir)@am__isrc@ +depcomp = $(SHELL) $(top_srcdir)/depcomp +am__depfiles_maybe = depfiles +COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \ + $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ + --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \ + $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +CCLD = $(CC) +LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ + --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \ + $(LDFLAGS) -o $@ +SOURCES = $(imfile_la_SOURCES) +DIST_SOURCES = $(imfile_la_SOURCES) +ETAGS = etags +CTAGS = ctags +DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) +ACLOCAL = @ACLOCAL@ +AMTAR = @AMTAR@ +AR = @AR@ +AUTOCONF = @AUTOCONF@ +AUTOHEADER = @AUTOHEADER@ +AUTOMAKE = @AUTOMAKE@ +AWK = @AWK@ +CC = @CC@ +CCDEPMODE = @CCDEPMODE@ +CFLAGS = @CFLAGS@ +CPP = @CPP@ +CPPFLAGS = @CPPFLAGS@ +CXX = @CXX@ +CXXCPP = @CXXCPP@ +CXXDEPMODE = @CXXDEPMODE@ +CXXFLAGS = @CXXFLAGS@ +CYGPATH_W = @CYGPATH_W@ +DEFS = @DEFS@ +DEPDIR = @DEPDIR@ +ECHO = @ECHO@ +ECHO_C = @ECHO_C@ +ECHO_N = @ECHO_N@ +ECHO_T = @ECHO_T@ +EGREP = @EGREP@ +EXEEXT = @EXEEXT@ +F77 = @F77@ +FFLAGS = @FFLAGS@ +GREP = @GREP@ +HAVE_MYSQL_CONFIG = @HAVE_MYSQL_CONFIG@ +HAVE_PGSQL_CONFIG = @HAVE_PGSQL_CONFIG@ +INSTALL = @INSTALL@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ +LDFLAGS = @LDFLAGS@ +LIBOBJS = @LIBOBJS@ +LIBS = @LIBS@ +LIBTOOL = @LIBTOOL@ +LN_S = @LN_S@ +LTLIBOBJS = @LTLIBOBJS@ +MAKEINFO = @MAKEINFO@ +MKDIR_P = @MKDIR_P@ +OBJEXT = @OBJEXT@ +PACKAGE = @PACKAGE@ +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +PACKAGE_TARNAME = @PACKAGE_TARNAME@ +PACKAGE_VERSION = @PACKAGE_VERSION@ +PATH_SEPARATOR = @PATH_SEPARATOR@ +RANLIB = @RANLIB@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +STRIP = @STRIP@ +VERSION = @VERSION@ +abs_builddir = @abs_builddir@ +abs_srcdir = @abs_srcdir@ +abs_top_builddir = @abs_top_builddir@ +abs_top_srcdir = @abs_top_srcdir@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_CXX = @ac_ct_CXX@ +ac_ct_F77 = @ac_ct_F77@ +am__include = @am__include@ +am__leading_dot = @am__leading_dot@ +am__quote = @am__quote@ +am__tar = @am__tar@ +am__untar = @am__untar@ +bindir = @bindir@ +build = @build@ +build_alias = @build_alias@ +build_cpu = @build_cpu@ +build_os = @build_os@ +build_vendor = @build_vendor@ +builddir = @builddir@ +datadir = @datadir@ +datarootdir = @datarootdir@ +dl_libs = @dl_libs@ +docdir = @docdir@ +dvidir = @dvidir@ +exec_prefix = @exec_prefix@ +gss_libs = @gss_libs@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdbi_cflags = @libdbi_cflags@ +libdbi_libs = @libdbi_libs@ +libdir = @libdir@ +libexecdir = @libexecdir@ +localedir = @localedir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +mysql_cflags = @mysql_cflags@ +mysql_libs = @mysql_libs@ +oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ +pgsql_cflags = @pgsql_cflags@ +pgsql_libs = @pgsql_libs@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +psdir = @psdir@ +pthreads_cflags = @pthreads_cflags@ +pthreads_libs = @pthreads_libs@ +relp_cflags = @relp_cflags@ +relp_libs = @relp_libs@ +rfc3195_cflags = @rfc3195_cflags@ +rfc3195_libs = @rfc3195_libs@ +rt_libs = @rt_libs@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +snmp_cflags = @snmp_cflags@ +snmp_libs = @snmp_libs@ +srcdir = @srcdir@ +sysconfdir = @sysconfdir@ +target_alias = @target_alias@ +top_builddir = @top_builddir@ +top_srcdir = @top_srcdir@ +zlib_libs = @zlib_libs@ +pkglib_LTLIBRARIES = imfile.la +imfile_la_SOURCES = imfile.c +imfile_la_CPPFLAGS = -I$(top_srcdir) $(pthreads_cflags) +imfile_la_LDFLAGS = -module -avoid-version +imfile_la_LIBADD = +all: all-am + +.SUFFIXES: +.SUFFIXES: .c .lo .o .obj +$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps) + @for dep in $?; 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A text file is a + * non-binary file who's lines are delemited by the \n character. + * + * Work originally begun on 2008-02-01 by Rainer Gerhards + * + * Copyright 2008 Rainer Gerhards and Adiscon GmbH. + * + * 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" /* this is for autotools and always must be the first include */ +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <errno.h> +#include <fcntl.h> +#include <pthread.h> /* do NOT remove: will soon be done by the module generation macros */ +#ifdef HAVE_SYS_STAT_H +# include <sys/stat.h> +#endif +#include "rsyslog.h" /* error codes etc... */ +#include "syslogd.h" +#include "cfsysline.h" /* access to config file objects */ +#include "module-template.h" /* generic module interface code - very important, read it! */ +#include "srUtils.h" /* some utility functions */ +#include "msg.h" +#include "stream.h" +#include "errmsg.h" +#include "datetime.h" + +MODULE_TYPE_INPUT /* must be present for input modules, do not remove */ + +/* defines */ + +/* Module static data */ +DEF_IMOD_STATIC_DATA /* must be present, starts static data */ +DEFobjCurrIf(errmsg) +DEFobjCurrIf(datetime) + +typedef struct fileInfo_s { + uchar *pszFileName; + uchar *pszTag; + uchar *pszStateFile; /* file in which state between runs is to be stored */ + int iFacility; + int iSeverity; + strm_t *pStrm; /* its stream (NULL if not assigned) */ +} fileInfo_t; + + +/* config variables */ +static uchar *pszFileName = NULL; +static uchar *pszFileTag = NULL; +static uchar *pszStateFile = NULL; +static int iPollInterval = 10; /* number of seconds to sleep when there was no file activity */ +static int iFacility = 128; /* local0 */ +static int iSeverity = 5; /* notice, as of rfc 3164 */ + +static int iFilPtr = 0; /* number of files to be monitored; pointer to next free spot during config */ +#define MAX_INPUT_FILES 100 +static fileInfo_t files[MAX_INPUT_FILES]; + + +/* enqueue the read file line as a message. The provided string is + * not freed - thuis must be done by the caller. + */ +static rsRetVal enqLine(fileInfo_t *pInfo, cstr_t *cstrLine) +{ + DEFiRet; + msg_t *pMsg; + + if(rsCStrLen(cstrLine) == 0) { + /* we do not process empty lines */ + FINALIZE; + } + + CHKiRet(msgConstruct(&pMsg)); + MsgSetFlowControlType(pMsg, eFLOWCTL_FULL_DELAY); + MsgSetUxTradMsg(pMsg, (char*)rsCStrGetSzStr(cstrLine)); + MsgSetRawMsg(pMsg, (char*)rsCStrGetSzStr(cstrLine)); + MsgSetMSG(pMsg, (char*)rsCStrGetSzStr(cstrLine)); + MsgSetHOSTNAME(pMsg, LocalHostName); + MsgSetTAG(pMsg, (char*)pInfo->pszTag); + pMsg->iFacility = LOG_FAC(pInfo->iFacility); + pMsg->iSeverity = LOG_PRI(pInfo->iSeverity); + pMsg->bParseHOSTNAME = 0; + datetime.getCurrTime(&(pMsg->tTIMESTAMP)); /* use the current time! */ + CHKiRet(submitMsg(pMsg)); +finalize_it: + RETiRet; +} + + +/* try to open a file. This involves checking if there is a status file and, + * if so, reading it in. Processing continues from the last know location. + */ +static rsRetVal +openFile(fileInfo_t *pThis) +{ + DEFiRet; + strm_t *psSF = NULL; + uchar pszSFNam[MAXFNAME]; + size_t lenSFNam; + struct stat stat_buf; + + /* Construct file name */ + lenSFNam = snprintf((char*)pszSFNam, sizeof(pszSFNam) / sizeof(uchar), "%s/%s", + (char*) glblGetWorkDir(), (char*)pThis->pszStateFile); + + /* check if the file exists */ + if(stat((char*) pszSFNam, &stat_buf) == -1) { + if(errno == ENOENT) { + /* currently no object! dbgoprint((obj_t*) pThis, "clean startup, no .si file found\n"); */ + ABORT_FINALIZE(RS_RET_FILE_NOT_FOUND); + } else { + /* currently no object! dbgoprint((obj_t*) pThis, "error %d trying to access .si file\n", errno); */ + ABORT_FINALIZE(RS_RET_IO_ERROR); + } + } + + /* If we reach this point, we have a .si file */ + + CHKiRet(strmConstruct(&psSF)); + CHKiRet(strmSettOperationsMode(psSF, STREAMMODE_READ)); + CHKiRet(strmSetsType(psSF, STREAMTYPE_FILE_SINGLE)); + CHKiRet(strmSetFName(psSF, pszSFNam, lenSFNam)); + CHKiRet(strmConstructFinalize(psSF)); + + /* read back in the object */ + CHKiRet(obj.Deserialize(&pThis->pStrm, (uchar*) "strm", psSF, NULL, pThis)); + + CHKiRet(strmSeekCurrOffs(pThis->pStrm)); + + /* OK, we could successfully read the file, so we now can request that it be deleted. + * If we need it again, it will be written on the next shutdown. + */ + psSF->bDeleteOnClose = 1; + +finalize_it: + if(psSF != NULL) + strmDestruct(&psSF); + + if(iRet != RS_RET_OK) { + CHKiRet(strmConstruct(&pThis->pStrm)); + CHKiRet(strmSettOperationsMode(pThis->pStrm, STREAMMODE_READ)); + CHKiRet(strmSetsType(pThis->pStrm, STREAMTYPE_FILE_MONITOR)); + CHKiRet(strmSetFName(pThis->pStrm, pThis->pszFileName, strlen((char*) pThis->pszFileName))); + CHKiRet(strmConstructFinalize(pThis->pStrm)); + } + + RETiRet; +} + + +/* The following is a cancel cleanup handler for strmReadLine(). It is necessary in case + * strmReadLine() is cancelled while processing the stream. -- rgerhards, 2008-03-27 + */ +static void pollFileCancelCleanup(void *pArg) +{ + BEGINfunc; + cstr_t **ppCStr = (cstr_t**) pArg; + if(*ppCStr != NULL) + rsCStrDestruct(ppCStr); + ENDfunc; +} +/* poll a file, need to check file rollover etc. open file if not open */ +static rsRetVal pollFile(fileInfo_t *pThis, int *pbHadFileData) +{ + DEFiRet; + cstr_t *pCStr = NULL; + + ASSERT(pbHadFileData != NULL); + + if(pThis->pStrm == NULL) { + CHKiRet(openFile(pThis)); /* open file */ + } + + pthread_cleanup_push(pollFileCancelCleanup, &pCStr); + /* loop below will be exited when strmReadLine() returns EOF */ + while(1) { + CHKiRet(strmReadLine(pThis->pStrm, &pCStr)); + *pbHadFileData = 1; /* this is just a flag, so set it and forget it */ + CHKiRet(enqLine(pThis, pCStr)); /* process line */ + rsCStrDestruct(&pCStr); /* discard string (must be done by us!) */ + } + pthread_cleanup_pop(0); + +finalize_it: + if(pCStr != NULL) { + rsCStrDestruct(&pCStr); + } + + RETiRet; +} + + +/* This function is the cancel cleanup handler. It is called when rsyslog decides the + * module must be stopped, what most probably happens during shutdown of rsyslogd. When + * this function is called, the runInput() function (below) is already terminated - somewhere + * in the middle of what it was doing. The cancel cleanup handler below should take + * care of any locked mutexes and such, things that really need to be cleaned up + * before processing continues. In general, many plugins do not need to provide + * any code at all here. + * + * IMPORTANT: the calling interface of this function can NOT be modified. It actually is + * called by pthreads. The provided argument is currently not being used. + */ +/* ------------------------------------------------------------------------------------------ * + * DO NOT TOUCH the following code - it will soon be part of the module generation macros! */ +static void +inputModuleCleanup(void __attribute__((unused)) *arg) +{ + BEGINfunc +/* END no-touch zone * + * ------------------------------------------------------------------------------------------ */ + + + + /* so far not needed */ + + + +/* ------------------------------------------------------------------------------------------ * + * DO NOT TOUCH the following code - it will soon be part of the module generation macros! */ + ENDfunc +} +/* END no-touch zone * + * ------------------------------------------------------------------------------------------ */ + + +/* This function is called by the framework to gather the input. The module stays + * most of its lifetime inside this function. It MUST NEVER exit this function. Doing + * so would end module processing and rsyslog would NOT reschedule the module. If + * you exit from this function, you violate the interface specification! + * + * We go through all files and remember if at least one had data. If so, we do + * another run (until no data was present in any file). Then we sleep for + * PollInterval seconds and restart the whole process. This ensures that as + * long as there is some data present, it will be processed at the fastest + * possible pace - probably important for busy systmes. If we monitor just a + * single file, the algorithm is slightly modified. In that case, the sleep + * hapens immediately. The idea here is that if we have just one file, we + * returned from the file processer because that file had no additional data. + * So even if we found some lines, it is highly unlikely to find a new one + * just now. Trying it would result in a performance-costly additional try + * which in the very, very vast majority of cases will never find any new + * lines. + * On spamming the main queue: keep in mind that it will automatically rate-limit + * ourselfes if we begin to overrun it. So we really do not need to care here. + */ +BEGINrunInput + int i; + int bHadFileData; /* were there at least one file with data during this run? */ +CODESTARTrunInput + /* ------------------------------------------------------------------------------------------ * + * DO NOT TOUCH the following code - it will soon be part of the module generation macros! */ + pthread_cleanup_push(inputModuleCleanup, NULL); + while(1) { /* endless loop - do NOT break; out of it! */ + /* END no-touch zone * + * ------------------------------------------------------------------------------------------ */ + + do { + bHadFileData = 0; + for(i = 0 ; i < iFilPtr ; ++i) { + pollFile(&files[i], &bHadFileData); + } + } while(iFilPtr > 1 && bHadFileData == 1); /* waring: 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); + + /* ------------------------------------------------------------------------------------------ * + * DO NOT TOUCH the following code - it will soon be part of the module generation macros! */ + } + /*NOTREACHED*/ + + pthread_cleanup_pop(0); /* just for completeness, but never called... */ + RETiRet; /* use it to make sure the housekeeping is done! */ +ENDrunInput + /* END no-touch zone * + * ------------------------------------------------------------------------------------------ */ + + +/* The function is called by rsyslog before runInput() is called. It is a last chance + * to set up anything specific. Most importantly, it can be used to tell rsyslog if the + * input shall run or not. The idea is that if some config settings (or similiar things) + * are not OK, the input can tell rsyslog it will not execute. To do so, return + * RS_RET_NO_RUN or a specific error code. If RS_RET_OK is returned, rsyslog will + * proceed and call the runInput() entry point. + */ +BEGINwillRun +CODESTARTwillRun + if(iFilPtr == 0) { + errmsg.LogError(NO_ERRCODE, "No files configured to be monitored"); + ABORT_FINALIZE(RS_RET_NO_RUN); + } + +finalize_it: +ENDwillRun + + + +/* This function persists information for a specific file being monitored. + * To do so, it simply persists the stream object. We do NOT abort on error + * iRet as that makes matters worse (at least we can try persisting the others...). + * rgerhards, 2008-02-13 + */ +static rsRetVal +persistStrmState(fileInfo_t *pInfo) +{ + DEFiRet; + strm_t *psSF = NULL; /* state file (stream) */ + + ASSERT(pInfo != NULL); + + /* TODO: create a function persistObj in obj.c? */ + CHKiRet(strmConstruct(&psSF)); + CHKiRet(strmSetDir(psSF, glblGetWorkDir(), strlen((char*)glblGetWorkDir()))); + CHKiRet(strmSettOperationsMode(psSF, STREAMMODE_WRITE)); + CHKiRet(strmSetiAddtlOpenFlags(psSF, O_TRUNC)); + CHKiRet(strmSetsType(psSF, STREAMTYPE_FILE_SINGLE)); + CHKiRet(strmSetFName(psSF, pInfo->pszStateFile, strlen((char*) pInfo->pszStateFile))); + CHKiRet(strmConstructFinalize(psSF)); + + CHKiRet(strmSerialize(pInfo->pStrm, psSF)); + + CHKiRet(strmDestruct(&psSF)); + +finalize_it: + if(psSF != NULL) + strmDestruct(&psSF); + + RETiRet; +} + + +/* This function is called by the framework after runInput() has been terminated. It + * shall free any resources and prepare the module for unload. + */ +BEGINafterRun + int i; +CODESTARTafterRun + /* Close files and persist file state information. We do NOT abort on error iRet as that makes + * matters worse (at least we can try persisting the others...). Please note that, under stress + * conditions, it may happen that we are terminated before we actuall could open all streams. So + * before we change anything, we need to make sure the stream was open. + */ + for(i = 0 ; i < iFilPtr ; ++i) { + if(files[i].pStrm != NULL) { /* stream open? */ + persistStrmState(&files[i]); + strmDestruct(&(files[i].pStrm)); + } + } +ENDafterRun + + +/* 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. + */ +BEGINmodExit +CODESTARTmodExit +ENDmodExit + + +BEGINqueryEtryPt +CODESTARTqueryEtryPt +CODEqueryEtryPt_STD_IMOD_QUERIES +ENDqueryEtryPt + + +/* The following function shall reset all configuration variables to their + * default values. The code provided in modInit() below registers it to be + * called on "$ResetConfigVariables". You may also call it from other places, + * but in general this is not necessary. Once runInput() has been called, this + * function here is never again called. + */ +static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal) +{ + DEFiRet; + + if(pszFileName != NULL) { + free(pszFileName); + pszFileName = NULL; + } + + if(pszFileTag != NULL) { + free(pszFileTag); + pszFileTag = NULL; + } + + if(pszStateFile != NULL) { + free(pszFileTag); + pszFileTag = NULL; + } + + + /* set defaults... */ + iPollInterval = 10; + iFacility = 128; /* local0 */ + iSeverity = 5; /* notice, as of rfc 3164 */ + + RETiRet; +} + + +/* add a new monitor */ +static rsRetVal addMonitor(void __attribute__((unused)) *pVal, uchar *pNewVal) +{ + DEFiRet; + fileInfo_t *pThis; + + free(pNewVal); /* we do not need it, but we must free it! */ + + if(iFilPtr < MAX_INPUT_FILES) { + pThis = &files[iFilPtr]; + /* TODO: check for strdup() NULL return */ + if(pszFileName == NULL) { + errmsg.LogError(NO_ERRCODE, "imfile error: no file name given, file monitor can not be created"); + ABORT_FINALIZE(RS_RET_CONFIG_ERROR); + } else { + pThis->pszFileName = (uchar*) strdup((char*) pszFileName); + } + + if(pszFileTag == NULL) { + errmsg.LogError(NO_ERRCODE, "imfile error: no tag value given , file monitor can not be created"); + ABORT_FINALIZE(RS_RET_CONFIG_ERROR); + } else { + pThis->pszTag = (uchar*) strdup((char*) pszFileTag); + } + + if(pszStateFile == NULL) { + errmsg.LogError(NO_ERRCODE, "imfile error: not state file name given, file monitor can not be created"); + ABORT_FINALIZE(RS_RET_CONFIG_ERROR); + } else { + pThis->pszStateFile = (uchar*) strdup((char*) pszStateFile); + } + + pThis->iSeverity = iSeverity; + pThis->iFacility = iFacility; + } else { + errmsg.LogError(NO_ERRCODE, "Too many file monitors configured - ignoring this one"); + ABORT_FINALIZE(RS_RET_OUT_OF_DESRIPTORS); + } + + CHKiRet(resetConfigVariables((uchar*) "dummy", (void*) pThis)); /* values are both dummies */ + +finalize_it: + if(iRet == RS_RET_OK) + ++iFilPtr; /* we got a new file to monitor */ + + RETiRet; +} + +/* modInit() is called once the module is loaded. It must perform all module-wide + * initialization tasks. There are also a number of housekeeping tasks that the + * framework requires. These are handled by the macros. Please note that the + * complexity of processing is depending on the actual module. However, only + * thing absolutely necessary should be done here. Actual app-level processing + * is to be performed in runInput(). A good sample of what to do here may be to + * set some variable defaults. The most important thing probably is registration + * of config command handlers. + */ +BEGINmodInit() +CODESTARTmodInit + *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */ +CODEmodInit_QueryRegCFSLineHdlr + CHKiRet(objUse(errmsg, CORE_COMPONENT)); + CHKiRet(objUse(datetime, CORE_COMPONENT)); + + CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfilename", 0, eCmdHdlrGetWord, + NULL, &pszFileName, STD_LOADABLE_MODULE_ID)); + CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfiletag", 0, eCmdHdlrGetWord, + NULL, &pszFileTag, STD_LOADABLE_MODULE_ID)); + CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfilestatefile", 0, eCmdHdlrGetWord, + NULL, &pszStateFile, STD_LOADABLE_MODULE_ID)); + CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfileseverity", 0, eCmdHdlrSeverity, + NULL, &iSeverity, STD_LOADABLE_MODULE_ID)); + CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfilefacility", 0, eCmdHdlrFacility, + NULL, &iFacility, STD_LOADABLE_MODULE_ID)); + CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputfilepollinterval", 0, eCmdHdlrInt, + NULL, &iPollInterval, STD_LOADABLE_MODULE_ID)); + /* that command ads a new file! */ + CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputrunfilemonitor", 0, eCmdHdlrGetWord, + addMonitor, NULL, STD_LOADABLE_MODULE_ID)); + CHKiRet(omsdRegCFSLineHdlr((uchar *)"resetconfigvariables", 1, eCmdHdlrCustomHandler, + resetConfigVariables, NULL, STD_LOADABLE_MODULE_ID)); +ENDmodInit +/* vim:set ai: + */ |