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;
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;
64 /******************************************************************
66 ******************************************************************/
68 /* Set Tracker Miners to index all our volumes */
69 static int set_sl_volumes(void)
72 const struct vol *volumes, *vol;
73 struct bstrList *vollist = bstrListCreate();
74 bstring sep = bfromcstr(", ");
75 bstring volnamelist = NULL, cmd = NULL;
77 EC_NULL_LOG( volumes = getvolumes() );
79 for (vol = volumes; vol; vol = vol->v_next) {
80 if (vol->v_flags & AFPVOL_SPOTLIGHT) {
81 bstring volnamequot = bformat("'%s'", vol->v_path);
82 bstrListPush(vollist, volnamequot);
86 volnamelist = bjoin(vollist, sep);
87 cmd = bformat("gsettings set org.freedesktop.Tracker.Miner.Files index-recursive-directories \"[%s]\"",
88 bdata(volnamelist) ? bdata(volnamelist) : "");
89 LOG(log_debug, logtype_sl, "set_sl_volumes: %s", bdata(cmd));
92 /* Disable default root user home indexing */
93 system("gsettings set org.freedesktop.Tracker.Miner.Files index-single-directories \"[]\"");
101 bstrListDestroy(vollist);
103 bdestroy(volnamelist);
107 /******************************************************************
108 * libevent helper functions
109 ******************************************************************/
111 /* libevent logging callback */
112 static void libevent_logmsg_cb(int severity, const char *msg)
115 case _EVENT_LOG_DEBUG:
116 LOG(log_debug, logtype_default, "libevent: %s", msg);
119 LOG(log_info, logtype_default, "libevent: %s", msg);
121 case _EVENT_LOG_WARN:
122 LOG(log_warning, logtype_default, "libevent: %s", msg);
125 LOG(log_error, logtype_default, "libevent: %s", msg);
128 LOG(log_error, logtype_default, "libevent: %s", msg);
129 break; /* never reached */
133 /******************************************************************
134 * libevent event callbacks
135 ******************************************************************/
137 /* SIGTERM callback */
138 static void sigterm_cb(evutil_socket_t fd, short what, void *arg)
143 LOG(log_info, logtype_afpd, "Exiting on SIGTERM");
149 /* block any signal but SIGCHLD */
151 sigdelset(&sigs, SIGCHLD);
152 sigprocmask(SIG_SETMASK, &sigs, NULL);
154 /* add 10 sec timeout timer, remove all events but SIGCHLD */
155 tv.tv_sec = KILL_GRACETIME;
157 event_base_loopexit(base, &tv);
158 event_del(sigterm_ev);
159 event_del(sigquit_ev);
162 #ifdef HAVE_TRACKER_SPARQL
163 system("tracker-control -t");
165 kill_childs(SIGTERM, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
168 /* SIGQUIT callback */
169 static void sigquit_cb(evutil_socket_t fd, short what, void *arg)
171 LOG(log_note, logtype_afpd, "Exiting on SIGQUIT");
172 #ifdef HAVE_TRACKER_SPARQL
173 system("tracker-control -t");
175 kill_childs(SIGQUIT, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
178 /* SIGHUP callback */
179 static void sighup_cb(evutil_socket_t fd, short what, void *arg)
181 LOG(log_note, logtype_afpd, "Received SIGHUP, sending all processes signal to reload config");
182 kill_childs(SIGHUP, &afpd_pid, &cnid_metad_pid, NULL);
185 /* SIGCHLD callback */
186 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
191 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
192 if (WIFEXITED(status)) {
193 if (WEXITSTATUS(status))
194 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
196 LOG(log_info, logtype_default, "child[%d]: done", pid);
198 if (WIFSIGNALED(status))
199 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
201 LOG(log_info, logtype_default, "child[%d]: died", pid);
206 else if (pid == cnid_metad_pid)
208 else if (pid == dbus_pid)
211 LOG(log_error, logtype_afpd, "Bad pid: %d", pid);
214 if (in_shutdown && afpd_pid == -1 && cnid_metad_pid == -1 && dbus_pid == -1)
215 event_base_loopbreak(base);
219 static void timer_cb(evutil_socket_t fd, short what, void *arg)
224 if (afpd_pid == -1) {
226 LOG(log_note, logtype_afpd, "Restarting 'afpd' (restarts: %u)", afpd_restarts);
227 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
228 LOG(log_error, logtype_default, "Error starting 'afpd'");
232 if (cnid_metad_pid == -1) {
233 cnid_metad_restarts++;
234 LOG(log_note, logtype_afpd, "Restarting 'cnid_metad' (restarts: %u)", cnid_metad_restarts);
235 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
236 LOG(log_error, logtype_default, "Error starting 'cnid_metad'");
241 if (dbus_pid == -1) {
243 LOG(log_note, logtype_afpd, "Restarting 'dbus' (restarts: %u)", dbus_restarts);
244 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
245 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
251 /******************************************************************
253 ******************************************************************/
255 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
256 static void kill_childs(int sig, ...)
263 while ((pid = va_arg(args, pid_t *)) != NULL) {
271 /* this get called when error conditions are met that require us to exit gracefully */
272 static void netatalk_exit(int ret)
274 server_unlock(PATH_NETATALK_LOCK);
278 /* this forks() and exec() "path" with varags as argc[] */
279 static pid_t run_process(const char *path, ...)
283 char *myargv[MYARVSIZE];
287 if ((pid = fork()) < 0) {
288 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
293 myargv[i++] = (char *)path;
294 va_start(args, path);
295 while (i < MYARVSIZE) {
296 if ((myargv[i++] = va_arg(args, char *)) == NULL)
301 (void)execv(path, myargv);
303 /* Yikes! We're still here, so exec failed... */
304 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
310 static void usage(void)
312 printf("usage: netatalk [-F configfile] \n");
315 int main(int argc, char **argv)
317 int c, ret, debug = 0;
321 /* Log SIGBUS/SIGSEGV SBT */
324 while ((c = getopt(argc, argv, ":dF:")) != -1) {
330 obj.cmdlineconfigfile = strdup(optarg);
338 if (check_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
341 if (!debug && daemonize(0, 0) != 0)
344 if (create_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
347 sigfillset(&blocksigs);
348 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
350 if (afp_config_parse(&obj, "netatalk") != 0)
351 netatalk_exit(EXITERR_CONF);
353 load_volumes(&obj, lv_all);
355 event_set_log_callback(libevent_logmsg_cb);
356 event_set_fatal_callback(netatalk_exit);
358 LOG(log_note, logtype_default, "Netatalk AFP server starting");
360 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
361 LOG(log_error, logtype_afpd, "Error starting 'afpd'");
362 netatalk_exit(EXITERR_CONF);
365 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
366 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
367 netatalk_exit(EXITERR_CONF);
370 if ((base = event_base_new()) == NULL) {
371 LOG(log_error, logtype_afpd, "Error starting event loop");
372 netatalk_exit(EXITERR_CONF);
375 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
376 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
377 sigquit_ev = event_new(base, SIGHUP, EV_SIGNAL | EV_PERSIST, sighup_cb, NULL);
378 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
379 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
384 event_add(sigterm_ev, NULL);
385 event_add(sigquit_ev, NULL);
386 event_add(sigchld_ev, NULL);
387 event_add(timer_ev, &tv);
389 sigfillset(&blocksigs);
390 sigdelset(&blocksigs, SIGTERM);
391 sigdelset(&blocksigs, SIGQUIT);
392 sigdelset(&blocksigs, SIGCHLD);
393 sigdelset(&blocksigs, SIGHUP);
394 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
397 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=" _PATH_STATEDIR "spotlight.ipc", 1);
398 setenv("XDG_DATA_HOME", _PATH_STATEDIR, 0);
399 setenv("XDG_CACHE_HOME", _PATH_STATEDIR, 0);
400 setenv("TRACKER_USE_LOG_FILES", "1", 0);
402 dbus_path = atalk_iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon", DBUS_DAEMON_PATH);
403 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
404 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
405 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
406 netatalk_exit(EXITERR_CONF);
409 /* Allow dbus some time to start up */
413 #ifdef HAVE_TRACKER_SPARQL
415 setenv("XDG_DATA_DIRS", TRACKER_PREFIX "/share", 0);
416 setenv("TRACKER_DB_ONTOLOGIES_DIR", TRACKER_PREFIX "/share/tracker/ontologies", 0);
417 setenv("TRACKER_EXTRACTOR_RULES_DIR", TRACKER_PREFIX "/share/tracker/extract-rules", 0);
418 setenv("TRACKER_LANGUAGE_STOPWORDS_DIR", TRACKER_PREFIX "/share/tracker/languages", 0);
421 system(TRACKER_PREFIX "/bin/tracker-control -s");
424 /* run the event loop */
425 ret = event_base_dispatch(base);
427 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1) {
429 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
430 if (cnid_metad_pid != -1)
431 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
433 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
434 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
437 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");