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 bstring volnamequot = bformat("'%s'", vol->v_path);
81 bstrListPush(vollist, volnamequot);
84 volnamelist = bjoin(vollist, sep);
85 cmd = bformat("gsettings set org.freedesktop.Tracker.Miner.Files index-recursive-directories \"[%s]\"", bdata(volnamelist));
86 LOG(log_debug, logtype_sl, "set_sl_volumes: %s", bdata(cmd));
95 bstrListDestroy(vollist);
97 bdestroy(volnamelist);
101 /******************************************************************
102 * libevent helper functions
103 ******************************************************************/
105 /* libevent logging callback */
106 static void libevent_logmsg_cb(int severity, const char *msg)
109 case _EVENT_LOG_DEBUG:
110 LOG(log_debug, logtype_default, "libevent: %s", msg);
113 LOG(log_info, logtype_default, "libevent: %s", msg);
115 case _EVENT_LOG_WARN:
116 LOG(log_warning, logtype_default, "libevent: %s", msg);
119 LOG(log_error, logtype_default, "libevent: %s", msg);
122 LOG(log_error, logtype_default, "libevent: %s", msg);
123 break; /* never reached */
127 /******************************************************************
128 * libevent event callbacks
129 ******************************************************************/
131 /* SIGTERM callback */
132 static void sigterm_cb(evutil_socket_t fd, short what, void *arg)
137 LOG(log_info, logtype_afpd, "Exiting on SIGTERM");
143 /* block any signal but SIGCHLD */
145 sigdelset(&sigs, SIGCHLD);
146 sigprocmask(SIG_SETMASK, &sigs, NULL);
148 /* add 10 sec timeout timer, remove all events but SIGCHLD */
149 tv.tv_sec = KILL_GRACETIME;
151 event_base_loopexit(base, &tv);
152 event_del(sigterm_ev);
153 event_del(sigquit_ev);
156 system("tracker-control -t");
157 kill_childs(SIGTERM, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
160 /* SIGQUIT callback */
161 static void sigquit_cb(evutil_socket_t fd, short what, void *arg)
163 LOG(log_note, logtype_afpd, "Exiting on SIGQUIT");
164 system("tracker-control -t");
165 kill_childs(SIGQUIT, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
168 /* SIGQUIT callback */
169 static void sighup_cb(evutil_socket_t fd, short what, void *arg)
171 LOG(log_note, logtype_afpd, "Received SIGHUP, sending all processes signal to reload config");
172 kill_childs(SIGHUP, &afpd_pid, &cnid_metad_pid, NULL);
175 /* SIGCHLD callback */
176 static void sigchld_cb(evutil_socket_t fd, short what, void *arg)
181 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
182 if (WIFEXITED(status)) {
183 if (WEXITSTATUS(status))
184 LOG(log_info, logtype_default, "child[%d]: exited %d", pid, WEXITSTATUS(status));
186 LOG(log_info, logtype_default, "child[%d]: done", pid);
188 if (WIFSIGNALED(status))
189 LOG(log_info, logtype_default, "child[%d]: killed by signal %d", pid, WTERMSIG(status));
191 LOG(log_info, logtype_default, "child[%d]: died", pid);
196 else if (pid == cnid_metad_pid)
198 else if (pid == dbus_pid)
201 LOG(log_error, logtype_afpd, "Bad pid: %d", pid);
204 if (in_shutdown && afpd_pid == -1 && cnid_metad_pid == -1 && dbus_pid == -1)
205 event_base_loopbreak(base);
209 static void timer_cb(evutil_socket_t fd, short what, void *arg)
214 if (afpd_pid == -1) {
216 LOG(log_note, logtype_afpd, "Restarting 'afpd' (restarts: %u)", afpd_restarts);
217 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
218 LOG(log_error, logtype_default, "Error starting 'afpd'");
222 if (cnid_metad_pid == -1) {
223 cnid_metad_restarts++;
224 LOG(log_note, logtype_afpd, "Restarting 'cnid_metad' (restarts: %u)", cnid_metad_restarts);
225 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
226 LOG(log_error, logtype_default, "Error starting 'cnid_metad'");
230 if (dbus_pid == -1) {
232 LOG(log_note, logtype_afpd, "Restarting 'dbus' (restarts: %u)", dbus_restarts);
233 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus.session.conf", NULL)) == -1) {
234 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
239 /******************************************************************
241 ******************************************************************/
243 /* kill processes passed as varargs of type "pid_t *", terminate list with NULL */
244 static void kill_childs(int sig, ...)
251 while ((pid = va_arg(args, pid_t *)) != NULL) {
259 /* this get called when error conditions are met that require us to exit gracefully */
260 static void netatalk_exit(int ret)
262 server_unlock(_PATH_NETATALK_LOCK);
266 /* this forks() and exec() "path" with varags as argc[] */
267 static pid_t run_process(const char *path, ...)
274 if ((pid = fork()) < 0) {
275 LOG(log_error, logtype_cnid, "error in fork: %s", strerror(errno));
280 myargv[i++] = (char *)path;
281 va_start(args, path);
282 while ((myargv[i++] = va_arg(args, char *)) != NULL)
286 ret = execv(path, myargv);
288 /* Yikes! We're still here, so exec failed... */
289 LOG(log_error, logtype_cnid, "Fatal error in exec: %s", strerror(errno));
295 static void usage(void)
297 printf("usage: netatalk [-F configfile] \n");
300 int main(int argc, char **argv)
302 int c, ret, debug = 0;
306 /* Log SIGBUS/SIGSEGV SBT */
309 while ((c = getopt(argc, argv, ":dF:")) != -1) {
315 obj.cmdlineconfigfile = strdup(optarg);
323 if (check_lockfile("netatalk", _PATH_NETATALK_LOCK) != 0)
326 if (!debug && daemonize(0, 0) != 0)
329 if (create_lockfile("netatalk", _PATH_NETATALK_LOCK) != 0)
332 sigfillset(&blocksigs);
333 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
335 if (afp_config_parse(&obj, "netatalk") != 0)
336 netatalk_exit(EXITERR_CONF);
340 event_set_log_callback(libevent_logmsg_cb);
341 event_set_fatal_callback(netatalk_exit);
343 LOG(log_note, logtype_default, "Netatalk AFP server starting");
345 if ((afpd_pid = run_process(_PATH_AFPD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
346 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
347 netatalk_exit(EXITERR_CONF);
350 if ((cnid_metad_pid = run_process(_PATH_CNID_METAD, "-d", "-F", obj.options.configfile, NULL)) == -1) {
351 LOG(log_error, logtype_afpd, "Error starting 'cnid_metad'");
352 netatalk_exit(EXITERR_CONF);
355 if ((base = event_base_new()) == NULL) {
356 LOG(log_error, logtype_afpd, "Error starting event loop");
357 netatalk_exit(EXITERR_CONF);
360 sigterm_ev = event_new(base, SIGTERM, EV_SIGNAL, sigterm_cb, NULL);
361 sigquit_ev = event_new(base, SIGQUIT, EV_SIGNAL | EV_PERSIST, sigquit_cb, NULL);
362 sigquit_ev = event_new(base, SIGHUP, EV_SIGNAL | EV_PERSIST, sighup_cb, NULL);
363 sigchld_ev = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, sigchld_cb, NULL);
364 timer_ev = event_new(base, -1, EV_PERSIST, timer_cb, NULL);
369 event_add(sigterm_ev, NULL);
370 event_add(sigquit_ev, NULL);
371 event_add(sigchld_ev, NULL);
372 event_add(timer_ev, &tv);
374 sigfillset(&blocksigs);
375 sigdelset(&blocksigs, SIGTERM);
376 sigdelset(&blocksigs, SIGQUIT);
377 sigdelset(&blocksigs, SIGCHLD);
378 sigdelset(&blocksigs, SIGHUP);
379 sigprocmask(SIG_SETMASK, &blocksigs, NULL);
382 setenv("DBUS_SESSION_BUS_ADDRESS", "unix:path=/tmp/spotlight.ipc", 1);
383 setenv("XDG_DATA_DIRS", TRACKER_PREFIX "/share/:/usr/share/", 1);
384 setenv("TRACKER_DB_ONTOLOGIES_DIR", TRACKER_PREFIX "/share/tracker/ontologies", 1);
385 setenv("TRACKER_EXTRACTOR_RULES_DIR", TRACKER_PREFIX "/share/tracker/extract-rules", 1);
386 setenv("TRACKER_LANGUAGE_STOPWORDS_DIR", TRACKER_PREFIX "/share/tracker/languages", 1);
389 dbus_path = iniparser_getstring(obj.iniconfig, INISEC_GLOBAL, "dbus daemon path", "/bin/dbus-daemon");
390 LOG(log_debug, logtype_default, "DBUS: '%s'", dbus_path);
391 if ((dbus_pid = run_process(dbus_path, "--config-file=" _PATH_CONFDIR "dbus-session.conf", NULL)) == -1) {
392 LOG(log_error, logtype_default, "Error starting '%s'", dbus_path);
393 netatalk_exit(EXITERR_CONF);
396 /* Allow dbus some time to start up */
401 system(TRACKER_PREFIX "/bin/tracker-control -s");
403 /* run the event loop */
404 ret = event_base_dispatch(base);
406 if (afpd_pid != -1 || cnid_metad_pid != -1 || dbus_pid != -1) {
408 LOG(log_error, logtype_afpd, "AFP service did not shutdown, killing it");
409 if (cnid_metad_pid != -1)
410 LOG(log_error, logtype_afpd, "CNID database service did not shutdown, killing it");
412 LOG(log_error, logtype_afpd, "DBUS session daemon still running, killing it");
413 kill_childs(SIGKILL, &afpd_pid, &cnid_metad_pid, &dbus_pid, NULL);
416 LOG(log_note, logtype_afpd, "Netatalk AFP server exiting");