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DISCONTINUED:openSUSE:11.1:Update
syslog-ng
syslog-ng-add-log-sockets.dif
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File syslog-ng-add-log-sockets.dif of Package syslog-ng
--- src/add_socket.c +++ src/add_socket.c 2008/02/26 11:16:31 @@ -0,0 +1,282 @@ +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <glib.h> + +#include "afunix.h" +#include "sgroup.h" +#include "messages.h" +#include "add_socket.h" + +#ifndef DEV_LOG_SOCKET +#define DEV_LOG_SOCKET "/dev/log" +#endif + +struct additional_socket +{ + gint skip; + gchar *path; +}; + +static struct additional_socket * +make_additional_socket (const gchar *path, gint skip) +{ + struct additional_socket *sock; + sock = g_new(struct additional_socket, 1); + if(sock) + { + sock->skip = skip; + sock->path = g_strdup(path); + if( !sock->path) + { + g_free(sock); + sock = NULL; + } + } + return sock; +} + +static void +free_additional_socket (struct additional_socket *sock) +{ + if(sock) + { + g_free(sock->path); + g_free(sock); + } +} + +static void +add_sockets_skip_reset (GSList *socket_list) +{ + GSList *ptr; + struct additional_socket *sock; + + for(ptr = socket_list; ptr; ptr = g_slist_next(ptr)) + { + sock = (struct additional_socket *)ptr->data; + if(sock) + { + sock->skip = 0; + } + } +} + +static void +add_sockets_skip_mark (GSList *socket_list, + const gchar *socket_path) +{ + GSList *ptr; + struct additional_socket *sock; + + for(ptr = socket_list; ptr; ptr = g_slist_next(ptr)) + { + sock = (struct additional_socket *)ptr->data; + if(sock && socket_path && !strcmp(sock->path, socket_path)) + { + sock->skip = 1; + } + } +} + +static LogDriver * +add_sockets_clone_unix_source(LogDriver *log_drv, char *path) +{ + LogDriver *new_drv; + AFUnixSourceDriver *log_u_drv; + AFUnixSourceDriver *new_u_drv; + AFSocketSourceDriver *log_s_drv; + AFSocketSourceDriver *new_s_drv; + + log_u_drv = (AFUnixSourceDriver *)log_drv; + log_s_drv = (AFSocketSourceDriver *)log_drv; + + new_drv = afunix_sd_new(path, log_u_drv->super.flags); + if( !new_drv) + return NULL; + + new_drv->optional = log_drv->optional; + + /* unix source driver params */ + new_u_drv = (AFUnixSourceDriver *)new_drv; + new_u_drv->owner = log_u_drv->owner; + new_u_drv->group = log_u_drv->group; + new_u_drv->perm = log_u_drv->perm; + + /* socket options */ + new_u_drv->sock_options.sndbuf = log_u_drv->sock_options.sndbuf; + new_u_drv->sock_options.rcvbuf = log_u_drv->sock_options.rcvbuf; + new_u_drv->sock_options.broadcast = log_u_drv->sock_options.broadcast; + new_u_drv->sock_options.keepalive = log_u_drv->sock_options.keepalive; + + /* socket source params */ + new_s_drv = (AFSocketSourceDriver *)new_drv; + afsocket_sd_set_keep_alive(new_drv, + log_s_drv->flags & AFSOCKET_KEEP_ALIVE); + afsocket_sd_set_max_connections(new_drv, + log_s_drv->max_connections); + + /* source reader options */ + new_s_drv->reader_options.options = + log_s_drv->reader_options.options; + + new_s_drv->reader_options.msg_size = + log_s_drv->reader_options.msg_size; + + new_s_drv->reader_options.source_opts.init_window_size = + log_s_drv->reader_options.source_opts.init_window_size; + + new_s_drv->reader_options.fetch_limit = + log_s_drv->reader_options.fetch_limit; + + new_s_drv->reader_options.prefix = + g_strdup(log_s_drv->reader_options.prefix); + + new_s_drv->reader_options.padding = + log_s_drv->reader_options.padding; + + new_s_drv->reader_options.follow_freq = + log_s_drv->reader_options.follow_freq; + + new_s_drv->reader_options.keep_timestamp = + log_s_drv->reader_options.keep_timestamp; + + new_s_drv->reader_options.zone_offset = + log_s_drv->reader_options.zone_offset; + + return new_drv; +} + +static void +add_sockets_foreach_src(gpointer key, gpointer value, gpointer user_data) +{ + GSList *socket_list = (GSList *)user_data; + LogSourceGroup *source_group = (LogSourceGroup *)value; + LogDriver *dev_log_drv = NULL; + LogDriver *drv; + + if(!socket_list || !source_group) + return; + + + /* + ** find /dev/log and set skip mark to all + ** sockets that are already in the config. + */ + for(drv = source_group->drivers; drv; drv = drv->drv_next) + { + LogPipe *pipe = &drv->super; + + if(pipe->free_fn == afunix_sd_free) + { + AFUnixSourceDriver *udrv; + udrv = (AFUnixSourceDriver *)drv; + + if(strcmp(udrv->filename, DEV_LOG_SOCKET) == 0) + { + dev_log_drv = drv; + } + else + { + add_sockets_skip_mark(socket_list, + udrv->filename); + } + } + } + + if(dev_log_drv) + { + GSList *ptr; + struct additional_socket *sock; + + for(ptr = socket_list; ptr; ptr = g_slist_next(ptr)) + { + sock = (struct additional_socket *)ptr->data; + if(sock && sock->skip == 0) + { + drv = add_sockets_clone_unix_source( + dev_log_drv, sock->path + ); + + if(drv) + { + drv->drv_next = source_group->drivers; + source_group->drivers = drv; + } + } + } + } +} + +void +add_sockets_to_sources (GSList *socket_list, + GHashTable *source_groups) +{ + if( !socket_list || !source_groups) + return; + + /* reset additional log socket skip flag */ + add_sockets_skip_reset(socket_list); + + g_hash_table_foreach( + source_groups, add_sockets_foreach_src, socket_list + ); +} + +void +add_sockets_free_list (GSList **socket_list) +{ + if( !socket_list) + return; + + GSList *ptr; + struct additional_socket *sock; + for(ptr = *socket_list; ptr; ptr = g_slist_next(ptr)) + { + sock = (struct additional_socket *)ptr->data; + free_additional_socket(sock); + } + g_slist_free(*socket_list); + socket_list = NULL; +} + +gboolean +add_sockets_append_new (GSList **socket_list, + const gchar *socket_path, + int debug_flag) +{ + struct additional_socket *sock; + + if( !socket_list) + return FALSE; + if( !socket_path || *socket_path == '\0') + return FALSE; + if( strcmp(socket_path, DEV_LOG_SOCKET) == 0) + return FALSE; + + if( *socket_list) + { + GSList *ptr; + /* just return ok in case we already have it */ + for(ptr = *socket_list; ptr; ptr = g_slist_next(ptr)) + { + sock = (struct additional_socket *)ptr->data; + if(sock && strcmp(sock->path, socket_path) == 0) + return TRUE; + } + } + + sock = make_additional_socket(socket_path, 0); + if( sock) + { + *socket_list = g_slist_append(*socket_list, sock); + return TRUE; + } + return FALSE; +} + + +/* vim: set tw=80 ts=8 sts=8 sw=8 ai noet: */ --- src/add_socket.h +++ src/add_socket.h 2008/02/25 10:47:33 @@ -0,0 +1,19 @@ +#ifndef ADD_SOCKET_H +#define ADD_SOCKET_H + +#include <glib.h> + +gboolean +add_sockets_append_new (GSList **socket_list, + const gchar *socket_path, + int debug_flag); + +void +add_sockets_to_sources (GSList *socket_list, + GHashTable *source_groups); + +void +add_sockets_free_list (GSList **socket_list); + +#endif /* ADD_SOCKET_H */ +/* vim: set tw=80 ts=8 sts=8 sw=8 ai noet: */ --- src/afunix.c +++ src/afunix.c 2008/02/25 13:41:38 @@ -77,7 +77,7 @@ afunix_sd_init(LogPipe *s, GlobalConfig return FALSE; } -static void +void afunix_sd_free(LogPipe *s) { AFUnixSourceDriver *self = (AFUnixSourceDriver *) s; --- src/afunix.h +++ src/afunix.h 2008/02/25 13:41:08 @@ -42,6 +42,7 @@ void afunix_sd_set_gid(LogDriver *self, void afunix_sd_set_perm(LogDriver *self, mode_t perm); LogDriver *afunix_sd_new(gchar *filename, guint32 flags); +void afunix_sd_free(LogPipe *s); typedef struct _AFUnixDestDriver { --- src/cfg.c +++ src/cfg.c 2008/02/25 15:30:12 @@ -31,6 +31,7 @@ #include "misc.h" #include "logmsg.h" #include "dnscache.h" +#include "add_socket.h" #include <stdio.h> #include <ctype.h> @@ -364,7 +365,7 @@ cfg_free(GlobalConfig *self) } GlobalConfig * -cfg_reload_config(gchar *fname, GlobalConfig *cfg) +cfg_reload_config(gchar *fname, GlobalConfig *cfg, GSList *additional_sockets) { PersistentConfig *persist; GlobalConfig *new_cfg; @@ -378,6 +379,7 @@ cfg_reload_config(gchar *fname, GlobalCo NULL); return cfg; } + add_sockets_to_sources(additional_sockets, new_cfg->sources); persist = persist_config_new(); cfg_deinit(cfg, persist); --- src/cfg.h +++ src/cfg.h 2008/02/25 15:13:29 @@ -129,7 +129,7 @@ GlobalConfig *cfg_new(gchar *fname); void cfg_free(GlobalConfig *self); gboolean cfg_init(GlobalConfig *cfg, PersistentConfig *persist); gboolean cfg_deinit(GlobalConfig *cfg, PersistentConfig *persist); -GlobalConfig *cfg_reload_config(gchar *fname, GlobalConfig *cfg); +GlobalConfig *cfg_reload_config(gchar *fname, GlobalConfig *cfg, GSList *additional_sockets); PersistentConfig *persist_config_new(void); void persist_config_add(PersistentConfig *self, gchar *name, gpointer store, GDestroyNotify destroy); --- src/main.c +++ src/main.c 2008/02/26 11:26:13 @@ -30,6 +30,7 @@ #include "stats.h" #include "dnscache.h" #include "alarms.h" +#include "add_socket.h" #include <sys/types.h> #include <stdio.h> @@ -59,7 +60,7 @@ static gchar *chroot_dir = NULL; static gchar *run_as_user = NULL; static uid_t uid = 0; static gid_t gid = 0; - +static GSList *additional_sockets = NULL; void usage(void) { @@ -81,6 +82,8 @@ void usage(void) #ifdef YYDEBUG " -y, --yydebug Turn on yacc debug messages\n" #endif + " -a, --add-socket=<path> Add an additional (chroot) log socket with same\n" + " type and to the same log source group as /dev/log.\n" ); exit(0); @@ -166,7 +169,7 @@ main_loop_run(GlobalConfig **cfg) if (sig_hup_received) { msg_notice("Configuration reload request received, reloading configuration", NULL); - (*cfg) = cfg_reload_config(cfgfilename, (*cfg)); + (*cfg) = cfg_reload_config(cfgfilename, (*cfg), additional_sockets); sig_hup_received = FALSE; if ((*cfg)->stats_freq > 0) { @@ -322,6 +325,7 @@ main(int argc, char *argv[]) #ifdef YYDEBUG { "yydebug", no_argument, NULL, 'y' }, #endif + { "add-socket", required_argument, NULL, 'a'}, { NULL, 0, NULL, 0 } }; #endif @@ -333,9 +337,9 @@ main(int argc, char *argv[]) #if HAVE_GETOPT_LONG - while ((opt = getopt_long(argc, argv, "sFf:p:dvhyVC:u:g:eR:", syslog_ng_options, NULL)) != -1) + while ((opt = getopt_long(argc, argv, "sFf:p:dvhyVC:u:g:eR:a:", syslog_ng_options, NULL)) != -1) #else - while ((opt = getopt(argc, argv, "sFf:p:dvhyVC:u:g:eR:")) != -1) + while ((opt = getopt(argc, argv, "sFf:p:dvhyVC:u:g:eR:a:")) != -1) #endif { switch (opt) @@ -384,6 +388,14 @@ main(int argc, char *argv[]) case 'R': persist_file = optarg; break; + case 'a': + if( !add_sockets_append_new(&additional_sockets, optarg, + (debug_flag && log_to_stderr))) + { + add_sockets_free_list(&additional_sockets); + return 1; + } + break; case 'h': default: usage(); @@ -404,11 +416,14 @@ main(int argc, char *argv[]) cfg = cfg_new(cfgfilename); if (!cfg) { + add_sockets_free_list(&additional_sockets); return 1; } + add_sockets_to_sources(additional_sockets, cfg->sources); if (syntax_only) { + add_sockets_free_list(&additional_sockets); return 0; } @@ -417,11 +432,13 @@ main(int argc, char *argv[]) if (!cfg_init(cfg, persist)) { + add_sockets_free_list(&additional_sockets); return 2; } if (!daemonize()) { + add_sockets_free_list(&additional_sockets); return 2; } /* from now on internal messages are written to the system log as well */ @@ -441,6 +458,7 @@ main(int argc, char *argv[]) } cfg_free(cfg); + add_sockets_free_list(&additional_sockets); child_manager_deinit(); --- src/Makefile.am +++ src/Makefile.am 2008/02/22 15:04:28 @@ -17,7 +17,7 @@ libsyslog_ng_a_SOURCES = \ afsocket.c afsocket.h afunix.c afunix.h afinet.c afinet.h afinter.c afinter.h \ children.c children.h stats.c stats.h \ gsockaddr.c gsockaddr.h fdwrite.c fdwrite.h fdread.c fdread.h memtrace.c memtrace.h \ - dnscache.c dnscache.h alarms.c alarms.h + dnscache.c dnscache.h alarms.c alarms.h add_socket.c add_socket.h cfg-lex.c: cfg-grammar.c
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