/* * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1999-2001 Internet Software Consortium. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ /* $Id: logconf.c,v 1.30.2.5 2004/03/09 06:09:18 marka Exp $ */ #include #include #include #include #include #include #include #include #include #include #define CHECK(op) \ do { result = (op); \ if (result != ISC_R_SUCCESS) goto cleanup; \ } while (0) /* * Set up a logging category according to the named.conf data * in 'ccat' and add it to 'lctx'. */ static isc_result_t category_fromconf(cfg_obj_t *ccat, isc_logconfig_t *lctx) { isc_result_t result; const char *catname; isc_logcategory_t *category; isc_logmodule_t *module; cfg_obj_t *destinations = NULL; cfg_listelt_t *element = NULL; catname = cfg_obj_asstring(cfg_tuple_get(ccat, "name")); category = isc_log_categorybyname(ns_g_lctx, catname); if (category == NULL) { cfg_obj_log(ccat, ns_g_lctx, ISC_LOG_ERROR, "unknown logging category '%s' ignored", catname); /* * Allow further processing by returning success. */ return (ISC_R_SUCCESS); } module = NULL; destinations = cfg_tuple_get(ccat, "destinations"); for (element = cfg_list_first(destinations); element != NULL; element = cfg_list_next(element)) { cfg_obj_t *channel = cfg_listelt_value(element); char *channelname = cfg_obj_asstring(channel); result = isc_log_usechannel(lctx, channelname, category, module); if (result != ISC_R_SUCCESS) { isc_log_write(ns_g_lctx, CFG_LOGCATEGORY_CONFIG, NS_LOGMODULE_SERVER, ISC_LOG_ERROR, "logging channel '%s': %s", channelname, isc_result_totext(result)); return (result); } } return (ISC_R_SUCCESS); } /* * Set up a logging channel according to the named.conf data * in 'cchan' and add it to 'lctx'. */ static isc_result_t channel_fromconf(cfg_obj_t *channel, isc_logconfig_t *lctx) { isc_result_t result; isc_logdestination_t dest; unsigned int type; unsigned int flags = 0; int level; const char *channelname; cfg_obj_t *fileobj = NULL; cfg_obj_t *syslogobj = NULL; cfg_obj_t *nullobj = NULL; cfg_obj_t *stderrobj = NULL; cfg_obj_t *severity = NULL; int i; channelname = cfg_obj_asstring(cfg_map_getname(channel)); (void)cfg_map_get(channel, "file", &fileobj); (void)cfg_map_get(channel, "syslog", &syslogobj); (void)cfg_map_get(channel, "null", &nullobj); (void)cfg_map_get(channel, "stderr", &stderrobj); i = 0; if (fileobj != NULL) i++; if (syslogobj != NULL) i++; if (nullobj != NULL) i++; if (stderrobj != NULL) i++; if (i != 1) { cfg_obj_log(channel, ns_g_lctx, ISC_LOG_ERROR, "channel '%s': exactly one of file, syslog, " "null, and stderr must be present", channelname); return (ISC_R_FAILURE); } type = ISC_LOG_TONULL; if (fileobj != NULL) { cfg_obj_t *pathobj = cfg_tuple_get(fileobj, "file"); cfg_obj_t *sizeobj = cfg_tuple_get(fileobj, "size"); cfg_obj_t *versionsobj = cfg_tuple_get(fileobj, "versions"); isc_int32_t versions = ISC_LOG_ROLLNEVER; isc_offset_t size = 0; type = ISC_LOG_TOFILE; if (versionsobj != NULL && cfg_obj_isuint32(versionsobj)) versions = cfg_obj_asuint32(versionsobj); if (versionsobj != NULL && cfg_obj_isstring(versionsobj) && strcasecmp(cfg_obj_asstring(versionsobj), "unlimited") == 0) versions = ISC_LOG_ROLLINFINITE; if (sizeobj != NULL && cfg_obj_isuint64(sizeobj) && cfg_obj_asuint64(sizeobj) < ISC_OFFSET_MAXIMUM) size = (isc_offset_t)cfg_obj_asuint64(sizeobj); dest.file.stream = NULL; dest.file.name = cfg_obj_asstring(pathobj); dest.file.versions = versions; dest.file.maximum_size = size; } else if (syslogobj != NULL) { int facility = LOG_DAEMON; type = ISC_LOG_TOSYSLOG; if (cfg_obj_isstring(syslogobj)) { char *facilitystr = cfg_obj_asstring(syslogobj); (void)isc_syslog_facilityfromstring(facilitystr, &facility); } dest.facility = facility; } else if (stderrobj != NULL) { type = ISC_LOG_TOFILEDESC; dest.file.stream = stderr; dest.file.name = NULL; dest.file.versions = ISC_LOG_ROLLNEVER; dest.file.maximum_size = 0; } /* * Munge flags. */ { cfg_obj_t *printcat = NULL; cfg_obj_t *printsev = NULL; cfg_obj_t *printtime = NULL; (void)cfg_map_get(channel, "print-category", &printcat); (void)cfg_map_get(channel, "print-severity", &printsev); (void)cfg_map_get(channel, "print-time", &printtime); if (printcat != NULL && cfg_obj_asboolean(printcat)) flags |= ISC_LOG_PRINTCATEGORY; if (printtime != NULL && cfg_obj_asboolean(printtime)) flags |= ISC_LOG_PRINTTIME; if (printsev != NULL && cfg_obj_asboolean(printsev)) flags |= ISC_LOG_PRINTLEVEL; } level = ISC_LOG_INFO; if (cfg_map_get(channel, "severity", &severity) == ISC_R_SUCCESS) { if (cfg_obj_isstring(severity)) { char *str = cfg_obj_asstring(severity); if (strcasecmp(str, "critical") == 0) level = ISC_LOG_CRITICAL; else if (strcasecmp(str, "error") == 0) level = ISC_LOG_ERROR; else if (strcasecmp(str, "warning") == 0) level = ISC_LOG_WARNING; else if (strcasecmp(str, "notice") == 0) level = ISC_LOG_NOTICE; else if (strcasecmp(str, "info") == 0) level = ISC_LOG_INFO; else if (strcasecmp(str, "dynamic") == 0) level = ISC_LOG_DYNAMIC; } else /* debug */ level = cfg_obj_asuint32(severity); } result = isc_log_createchannel(lctx, channelname, type, level, &dest, flags); if (result == ISC_R_SUCCESS && type == ISC_LOG_TOFILE) { FILE *fp; /* * Test that the file can be opened, since isc_log_open() * can't effectively report failures when called in * isc_log_doit(). */ result = isc_stdio_open(dest.file.name, "a", &fp); if (result != ISC_R_SUCCESS) isc_log_write(ns_g_lctx, CFG_LOGCATEGORY_CONFIG, NS_LOGMODULE_SERVER, ISC_LOG_ERROR, "logging channel '%s' file '%s': %s", channelname, dest.file.name, isc_result_totext(result)); else (void)isc_stdio_close(fp); /* * Allow named to continue by returning success. */ result = ISC_R_SUCCESS; } return (result); } isc_result_t ns_log_configure(isc_logconfig_t *logconf, cfg_obj_t *logstmt) { isc_result_t result; cfg_obj_t *channels = NULL; cfg_obj_t *categories = NULL; cfg_listelt_t *element; isc_boolean_t default_set = ISC_FALSE; isc_boolean_t unmatched_set = ISC_FALSE; CHECK(ns_log_setdefaultchannels(logconf)); (void)cfg_map_get(logstmt, "channel", &channels); for (element = cfg_list_first(channels); element != NULL; element = cfg_list_next(element)) { cfg_obj_t *channel = cfg_listelt_value(element); CHECK(channel_fromconf(channel, logconf)); } (void)cfg_map_get(logstmt, "category", &categories); for (element = cfg_list_first(categories); element != NULL; element = cfg_list_next(element)) { cfg_obj_t *category = cfg_listelt_value(element); CHECK(category_fromconf(category, logconf)); if (!default_set) { cfg_obj_t *catname = cfg_tuple_get(category, "name"); if (strcmp(cfg_obj_asstring(catname), "default") == 0) default_set = ISC_TRUE; } if (!unmatched_set) { cfg_obj_t *catname = cfg_tuple_get(category, "name"); if (strcmp(cfg_obj_asstring(catname), "unmatched") == 0) unmatched_set = ISC_TRUE; } } if (!default_set) CHECK(ns_log_setdefaultcategory(logconf)); if (!unmatched_set) CHECK(ns_log_setunmatchedcategory(logconf)); return (ISC_R_SUCCESS); cleanup: if (logconf != NULL) isc_logconfig_destroy(&logconf); return (result); }