2 Copyright (c) 2012 Frank Lahm <franklahm@gmail.com>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
16 #endif /* HAVE_CONFIG_H */
22 #include <sys/param.h>
25 #include <sys/socket.h>
29 #include <sys/resource.h>
31 #include <atalk/logger.h>
32 #include <atalk/adouble.h>
33 #include <atalk/compat.h>
34 #include <atalk/dsi.h>
35 #include <atalk/afp.h>
36 #include <atalk/paths.h>
37 #include <atalk/util.h>
38 #include <atalk/server_child.h>
39 #include <atalk/server_ipc.h>
40 #include <atalk/errchk.h>
41 #include <atalk/globals.h>
42 #include <atalk/netatalk_conf.h>
43 #include <atalk/bstrlib.h>
44 #include <atalk/bstradd.h>
46 #include <event2/event.h>
48 /* how many seconds we wait to shutdown from SIGTERM before we send SIGKILL */
49 #define KILL_GRACETIME 5
51 /* forward declaration */
52 static pid_t run_process(const char *path, ...);
53 static void kill_childs(int sig, ...);
55 /* static variables */
57 static pid_t afpd_pid = -1, cnid_metad_pid = -1, dbus_pid = -1;
58 static uint afpd_restarts, cnid_metad_restarts, dbus_restarts, trackerd_restarts;
59 static struct event_base *base;
60 struct event *sigterm_ev, *sigquit_ev, *sigchld_ev, *timer_ev;
61 static int in_shutdown;
62 static const char *dbus_path;
63 static char *trackerd_loglev;
65 /******************************************************************
67 ******************************************************************/
69 /* Set Tracker Miners to index all our volumes */
70 static int set_sl_volumes(void)
73 const struct vol *volumes, *vol;
74 struct bstrList *vollist = bstrListCreate();
75 bstring sep = bfromcstr(", ");
76 bstring volnamelist = NULL, cmd = NULL;
78 EC_NULL_LOG( volumes = getvolumes() );
80 for (vol = volumes; vol; vol = vol->v_next) {
81 if (vol->v_flags & AFPVOL_SPOTLIGHT) {
82 bstring volnamequot = bformat("'%s'", vol->v_path);
83 bstrListPush(vollist, volnamequot);
87 volnamelist = bjoin(vollist, sep);
88 cmd = bformat("gsettings set org.freedesktop.Tracker.Miner.Files index-recursive-directories \"[%s]\"",
89 bdata(volnamelist) ? bdata(volnamelist) : "");
90 LOG(log_debug, logtype_sl, "set_sl_volumes: %s", bdata(cmd));
93 /* Disable default root user home indexing */
94 system("gsettings set org.freedesktop.Tracker.Miner.Files index-single-directories \"[]\"");
102 bstrListDestroy(vollist);
104 bdestroy(volnamelist);
108 /******************************************************************
109 * libevent helper functions
110 ******************************************************************/
112 /* libevent logging callback */
113 static void libevent_logmsg_cb(int severity, const char *msg)
116 case _EVENT_LOG_DEBUG:
117 LOG(log_debug, logtype_default, "libevent: %s", msg);
120 LOG(log_info, logtype_default, "libevent: %s", msg);
122 case _EVENT_LOG_WARN:
123 LOG(log_warning, logtype_default, "libevent: %s", msg);
126 LOG(log_error, logtype_default, "libevent: %s", msg);
129 LOG(log_error, logtype_default, "libevent: %s", msg);
130 break; /* never reached */
134 /******************************************************************
135 * libevent event callbacks
136 ******************************************************************/
138 /* SIGTERM callback */
139 static void sigterm_cb(evutil_socket_t fd, short what, void *arg)
144 LOG(log_info, logtype_afpd, "Exiting on SIGTERM");
150 /* block any signal but SIGCHLD */
152 sigdelset(&sigs, SIGCHLD);
153 sigprocmask(SIG_SETMASK, &sigs, NULL);
155 /* add 10 sec timeout timer, remove all events but SIGCHLD */
156 tv.tv_sec = KILL_GRACETIME;
158 event_base_loopexit(base, &tv);
159 event_del(sigterm_ev);
160 event_del(sigquit_ev);
163 #ifdef HAVE_TRACKER_SPARQL
164 system("tracker-control -t");
166 kill_childs(SIGTERM, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
169 /* SIGQUIT callback */
170 static void sigquit_cb(evutil_socket_t fd, short what, void *arg)
172 LOG(log_note, logtype_afpd, "Exiting on SIGQUIT");
173 #ifdef HAVE_TRACKER_SPARQL
174 system("tracker-control -t");
176 kill_childs(SIGQUIT, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
179 /* SIGHUP callback */
180 static void sighup_cb(evutil_socket_t fd, short what, void *arg)
182 LOG(log_note, logtype_afpd, "Received SIGHUP, sending all processes signal to reload config");
183 kill_childs(SIGHUP, &afpd_pid, &cnid_metad_pid, NULL);
186 /* SIGCHLD callback */
187 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
192 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
193 if (WIFEXITED(status)) {
194 if (WEXITSTATUS(status))
195 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
197 LOG(log_info, logtype_default, "child[%d]: done", pid);
199 if (WIFSIGNALED(status))
200 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
202 LOG(log_info, logtype_default, "child[%d]: died", pid);
207 else if (pid == cnid_metad_pid)
209 else if (pid == dbus_pid)
212 LOG(log_error, logtype_afpd, "Bad pid: %d", pid);
215 if (in_shutdown && afpd_pid == -1 && cnid_metad_pid == -1 && dbus_pid == -1)
216 event_base_loopbreak(base);
220 static void timer_cb(evutil_socket_t fd, short what, void *arg)
225 if (afpd_pid == -1) {
227 LOG(log_note, logtype_afpd, "Restarting 'afpd' (restarts: %u)", afpd_restarts);
228 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
229 LOG(log_error, logtype_default, "Error starting 'afpd'");
233 if (cnid_metad_pid == -1) {
234 cnid_metad_restarts++;
235 LOG(log_note, logtype_afpd, "Restarting 'cnid_metad' (restarts: %u)", cnid_metad_restarts);
236 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
237 LOG(log_error, logtype_default, "Error starting 'cnid_metad'");
242 if (dbus_pid == -1) {
244 LOG(log_note, logtype_afpd, "Restarting 'dbus' (restarts: %u)", dbus_restarts);
245 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus.session.conf", NULL)) == -1) {
246 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
252 /******************************************************************
254 ******************************************************************/
256 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
257 static void kill_childs(int sig, ...)
264 while ((pid = va_arg(args, pid_t *)) != NULL) {
272 /* this get called when error conditions are met that require us to exit gracefully */
273 static void netatalk_exit(int ret)
275 server_unlock(PATH_NETATALK_LOCK);
279 /* this forks() and exec() "path" with varags as argc[] */
280 static pid_t run_process(const char *path, ...)
284 char *myargv[MYARVSIZE];
288 if ((pid = fork()) < 0) {
289 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
294 myargv[i++] = (char *)path;
295 va_start(args, path);
296 while (i < MYARVSIZE) {
297 if ((myargv[i++] = va_arg(args, char *)) == NULL)
302 ret = execv(path, myargv);
304 /* Yikes! We're still here, so exec failed... */
305 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
311 static void usage(void)
313 printf("usage: netatalk [-F configfile] \n");
316 int main(int argc, char **argv)
318 int c, ret, debug = 0;
322 /* Log SIGBUS/SIGSEGV SBT */
325 while ((c = getopt(argc, argv, ":dF:")) != -1) {
331 obj.cmdlineconfigfile = strdup(optarg);
339 if (check_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
342 if (!debug && daemonize(0, 0) != 0)
345 if (create_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
348 sigfillset(&blocksigs);
349 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
351 if (afp_config_parse(&obj, "netatalk") != 0)
352 netatalk_exit(EXITERR_CONF);
356 event_set_log_callback(libevent_logmsg_cb);
357 event_set_fatal_callback(netatalk_exit);
359 LOG(log_note, logtype_default, "Netatalk AFP server starting");
361 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
362 LOG(log_error, logtype_afpd, "Error starting 'afpd'");
363 netatalk_exit(EXITERR_CONF);
366 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
367 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
368 netatalk_exit(EXITERR_CONF);
371 if ((base = event_base_new()) == NULL) {
372 LOG(log_error, logtype_afpd, "Error starting event loop");
373 netatalk_exit(EXITERR_CONF);
376 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
377 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
378 sigquit_ev = event_new(base, SIGHUP, EV_SIGNAL | EV_PERSIST, sighup_cb, NULL);
379 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
380 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
385 event_add(sigterm_ev, NULL);
386 event_add(sigquit_ev, NULL);
387 event_add(sigchld_ev, NULL);
388 event_add(timer_ev, &tv);
390 sigfillset(&blocksigs);
391 sigdelset(&blocksigs, SIGTERM);
392 sigdelset(&blocksigs, SIGQUIT);
393 sigdelset(&blocksigs, SIGCHLD);
394 sigdelset(&blocksigs, SIGHUP);
395 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
398 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=" _PATH_STATEDIR "spotlight.ipc", 1);
399 setenv("XDG_DATA_HOME", _PATH_STATEDIR, 0);
400 setenv("XDG_CACHE_HOME", _PATH_STATEDIR, 0);
401 setenv("TRACKER_USE_LOG_FILES", "1", 0);
403 dbus_path = atalk_iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon", DBUS_DAEMON_PATH);
404 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
405 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
406 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
407 netatalk_exit(EXITERR_CONF);
410 /* Allow dbus some time to start up */
414 #ifdef HAVE_TRACKER_SPARQL
416 setenv("XDG_DATA_DIRS", TRACKER_PREFIX "/share", 0);
417 setenv("TRACKER_DB_ONTOLOGIES_DIR", TRACKER_PREFIX "/share/tracker/ontologies", 0);
418 setenv("TRACKER_EXTRACTOR_RULES_DIR", TRACKER_PREFIX "/share/tracker/extract-rules", 0);
419 setenv("TRACKER_LANGUAGE_STOPWORDS_DIR", TRACKER_PREFIX "/share/tracker/languages", 0);
422 system(TRACKER_PREFIX "/bin/tracker-control -s");
425 /* run the event loop */
426 ret = event_base_dispatch(base);
428 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1) {
430 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
431 if (cnid_metad_pid != -1)
432 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
434 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
435 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
438 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");