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, trackerd_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 bstring volnamequot = bformat("'%s'", vol->v_path);
82 bstrListPush(vollist, volnamequot);
85 volnamelist = bjoin(vollist, sep);
86 cmd = bformat("gsettings set org.freedesktop.Tracker.Miner.Files index-recursive-directories \"[%s]\"", bdata(volnamelist));
87 LOG(log_debug, logtype_sl, "set_sl_volumes: %s", bdata(cmd));
90 /* Disable default root user home indexing */
91 system("gsettings set org.freedesktop.Tracker.Miner.Files index-single-directories \"[]\"");
99 bstrListDestroy(vollist);
101 bdestroy(volnamelist);
105 /******************************************************************
106 * libevent helper functions
107 ******************************************************************/
109 /* libevent logging callback */
110 static void libevent_logmsg_cb(int severity, const char *msg)
113 case _EVENT_LOG_DEBUG:
114 LOG(log_debug, logtype_default, "libevent: %s", msg);
117 LOG(log_info, logtype_default, "libevent: %s", msg);
119 case _EVENT_LOG_WARN:
120 LOG(log_warning, logtype_default, "libevent: %s", msg);
123 LOG(log_error, logtype_default, "libevent: %s", msg);
126 LOG(log_error, logtype_default, "libevent: %s", msg);
127 break; /* never reached */
131 /******************************************************************
132 * libevent event callbacks
133 ******************************************************************/
135 /* SIGTERM callback */
136 static void sigterm_cb(evutil_socket_t fd, short what, void *arg)
141 LOG(log_info, logtype_afpd, "Exiting on SIGTERM");
147 /* block any signal but SIGCHLD */
149 sigdelset(&sigs, SIGCHLD);
150 sigprocmask(SIG_SETMASK, &sigs, NULL);
152 /* add 10 sec timeout timer, remove all events but SIGCHLD */
153 tv.tv_sec = KILL_GRACETIME;
155 event_base_loopexit(base, &tv);
156 event_del(sigterm_ev);
157 event_del(sigquit_ev);
160 #ifdef HAVE_TRACKER_SPARQL
161 system("tracker-control -t");
163 kill_childs(SIGTERM, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
166 /* SIGQUIT callback */
167 static void sigquit_cb(evutil_socket_t fd, short what, void *arg)
169 LOG(log_note, logtype_afpd, "Exiting on SIGQUIT");
170 #ifdef HAVE_TRACKER_SPARQL
171 system("tracker-control -t");
173 kill_childs(SIGQUIT, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
176 /* SIGHUP callback */
177 static void sighup_cb(evutil_socket_t fd, short what, void *arg)
179 LOG(log_note, logtype_afpd, "Received SIGHUP, sending all processes signal to reload config");
180 kill_childs(SIGHUP, &afpd_pid, &cnid_metad_pid, &trackerd_pid, NULL);
183 /* SIGCHLD callback */
184 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
189 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
190 if (WIFEXITED(status)) {
191 if (WEXITSTATUS(status))
192 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
194 LOG(log_info, logtype_default, "child[%d]: done", pid);
196 if (WIFSIGNALED(status))
197 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
199 LOG(log_info, logtype_default, "child[%d]: died", pid);
204 else if (pid == cnid_metad_pid)
206 else if (pid == dbus_pid)
208 else if (pid == trackerd_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 && trackerd_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);
250 #ifdef HAVE_TRACKER_RDF
251 if (trackerd_pid == -1) {
253 LOG(log_note, logtype_afpd, "Restarting 'trackerd' (restarts: %u)", trackerd_restarts);
254 if ((trackerd_pid = run_process(TRACKERD_PATH, trackerd_loglev, NULL)) == -1) {
255 LOG(log_error, logtype_default, "Error starting '%s'", "/usr/bin/trackerd");
261 /******************************************************************
263 ******************************************************************/
265 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
266 static void kill_childs(int sig, ...)
273 while ((pid = va_arg(args, pid_t *)) != NULL) {
281 /* this get called when error conditions are met that require us to exit gracefully */
282 static void netatalk_exit(int ret)
284 server_unlock(PATH_NETATALK_LOCK);
288 /* this forks() and exec() "path" with varags as argc[] */
289 static pid_t run_process(const char *path, ...)
293 char *myargv[MYARVSIZE];
297 if ((pid = fork()) < 0) {
298 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
303 myargv[i++] = (char *)path;
304 va_start(args, path);
305 while (i < MYARVSIZE) {
306 if ((myargv[i++] = va_arg(args, char *)) == NULL)
311 ret = execv(path, myargv);
313 /* Yikes! We're still here, so exec failed... */
314 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
320 static void usage(void)
322 printf("usage: netatalk [-F configfile] \n");
325 int main(int argc, char **argv)
327 int c, ret, debug = 0;
331 /* Log SIGBUS/SIGSEGV SBT */
334 while ((c = getopt(argc, argv, ":dF:")) != -1) {
340 obj.cmdlineconfigfile = strdup(optarg);
348 if (check_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
351 if (!debug && daemonize(0, 0) != 0)
354 if (create_lockfile("netatalk", PATH_NETATALK_LOCK) != 0)
357 sigfillset(&blocksigs);
358 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
360 if (afp_config_parse(&obj, "netatalk") != 0)
361 netatalk_exit(EXITERR_CONF);
365 event_set_log_callback(libevent_logmsg_cb);
366 event_set_fatal_callback(netatalk_exit);
368 LOG(log_note, logtype_default, "Netatalk AFP server starting");
370 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
371 LOG(log_error, logtype_afpd, "Error starting 'afpd'");
372 netatalk_exit(EXITERR_CONF);
375 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
376 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
377 netatalk_exit(EXITERR_CONF);
380 if ((base = event_base_new()) == NULL) {
381 LOG(log_error, logtype_afpd, "Error starting event loop");
382 netatalk_exit(EXITERR_CONF);
385 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
386 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
387 sigquit_ev = event_new(base, SIGHUP, EV_SIGNAL | EV_PERSIST, sighup_cb, NULL);
388 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
389 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
394 event_add(sigterm_ev, NULL);
395 event_add(sigquit_ev, NULL);
396 event_add(sigchld_ev, NULL);
397 event_add(timer_ev, &tv);
399 sigfillset(&blocksigs);
400 sigdelset(&blocksigs, SIGTERM);
401 sigdelset(&blocksigs, SIGQUIT);
402 sigdelset(&blocksigs, SIGCHLD);
403 sigdelset(&blocksigs, SIGHUP);
404 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
407 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=/tmp/spotlight.ipc", 1);
408 setenv("XDG_DATA_HOME", _PATH_STATEDIR, 0);
409 setenv("XDG_CACHE_HOME", _PATH_STATEDIR, 0);
410 setenv("XDG_CONFIG_HOME", _PATH_CONFDIR, 0);
412 dbus_path = iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon path", DBUS_DAEMON_PATH);
413 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
414 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
415 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
416 netatalk_exit(EXITERR_CONF);
419 /* Allow dbus some time to start up */
423 #ifdef HAVE_TRACKER_SPARQL
425 system(TRACKER_PREFIX "/bin/tracker-control -s");
427 #ifdef HAVE_TRACKER_RDF
428 if (asprintf(&trackerd_loglev, "--verbosity=%d", obj.options.tracker_loglevel) == -1)
429 netatalk_exit(EXITERR_CONF);
430 if ((trackerd_pid = run_process(TRACKERD_PATH, trackerd_loglev, NULL)) == -1) {
431 LOG(log_error, logtype_default, "Error starting '%s'", TRACKERD_PATH);
432 netatalk_exit(EXITERR_CONF);
436 /* run the event loop */
437 ret = event_base_dispatch(base);
439 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1 || trackerd_pid != -1) {
441 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
442 if (cnid_metad_pid != -1)
443 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
445 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
446 if (trackerd_pid != -1)
447 LOG(log_error, logtype_afpd, "trackerd still running, killing it");
448 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, &trackerd_pid, NULL);
451 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");