1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
12 #include "conf-parser.h"
13 #include "load-fragment.h"
16 static int config_parse_deps(
25 UnitDependency d = PTR_TO_UINT(data);
35 FOREACH_WORD(w, &l, rvalue, state) {
39 if (!(t = strndup(w, l)))
42 r = unit_add_dependency_by_name(u, d, t);
52 static int config_parse_names(
71 FOREACH_WORD(w, &l, rvalue, state) {
76 if (!(t = strndup(w, l)))
79 other = manager_get_unit(u->meta.manager, t);
85 if (other->meta.load_state != UNIT_STUB) {
90 if ((r = unit_merge(u, other)) < 0) {
97 if ((r = unit_add_name(u, t)) < 0) {
109 static int config_parse_listen(
110 const char *filename,
129 if (!(p = new0(SocketPort, 1)))
132 if (streq(lvalue, "ListenFIFO")) {
133 p->type = SOCKET_FIFO;
135 if (!(p->path = strdup(rvalue))) {
140 p->type = SOCKET_SOCKET;
142 if ((r = socket_address_parse(&p->address, rvalue)) < 0) {
143 log_error("[%s:%u] Failed to parse address value: %s", filename, line, rvalue);
148 if (streq(lvalue, "ListenStream"))
149 p->address.type = SOCK_STREAM;
150 else if (streq(lvalue, "ListenDatagram"))
151 p->address.type = SOCK_DGRAM;
153 assert(streq(lvalue, "ListenSequentialPacket"));
154 p->address.type = SOCK_SEQPACKET;
157 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
159 return -EPROTONOSUPPORT;
164 LIST_PREPEND(SocketPort, port, s->ports, p);
169 static int config_parse_socket_bind(
170 const char *filename,
188 if ((r = parse_boolean(rvalue)) < 0) {
189 log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename, line, rvalue);
193 s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
198 static int config_parse_nice(
199 const char *filename,
207 ExecContext *c = data;
215 if ((r = safe_atoi(rvalue, &priority)) < 0) {
216 log_error("[%s:%u] Failed to parse nice priority: %s", filename, line, rvalue);
220 if (priority < PRIO_MIN || priority >= PRIO_MAX) {
221 log_error("[%s:%u] Nice priority out of range: %s", filename, line, rvalue);
231 static int config_parse_oom_adjust(
232 const char *filename,
240 ExecContext *c = data;
248 if ((r = safe_atoi(rvalue, &oa)) < 0) {
249 log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename, line, rvalue);
253 if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) {
254 log_error("[%s:%u] OOM adjust value out of range: %s", filename, line, rvalue);
259 c->oom_adjust_set = true;
264 static int config_parse_umask(
265 const char *filename,
283 l = strtol(rvalue, &x, 8);
284 if (!x || *x || errno) {
285 log_error("[%s:%u] Failed to parse umask value: %s", filename, line, rvalue);
286 return errno ? -errno : -EINVAL;
289 if (l < 0000 || l > 0777) {
290 log_error("[%s:%u] umask value out of range: %s", filename, line, rvalue);
298 static int config_parse_exec(
299 const char *filename,
307 ExecCommand **e = data, *ee, *nce = NULL;
320 FOREACH_WORD_QUOTED(w, l, rvalue, state)
323 if (!(n = new(char*, k+1)))
327 FOREACH_WORD_QUOTED(w, l, rvalue, state)
328 if (!(n[k++] = strndup(w, l)))
333 if (!n[0] || !path_is_absolute(n[0])) {
334 log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue);
339 if (!(nce = new0(ExecCommand, 1)))
343 if (!(nce->path = strdup(n[0])))
347 /* It's kinda important that we keep the order here */
348 LIST_FIND_TAIL(ExecCommand, command, *e, ee);
349 LIST_INSERT_AFTER(ExecCommand, command, *e, ee, nce);
365 static int config_parse_usec(
366 const char *filename,
375 unsigned long long u;
383 if ((r = safe_atollu(rvalue, &u)) < 0) {
384 log_error("[%s:%u] Failed to parse time value: %s", filename, line, rvalue);
388 /* We actually assume the user configures seconds. Later on we
389 * might choose to support suffixes for time values, to
390 * configure bigger or smaller units */
392 *usec = u * USEC_PER_SEC;
397 static int config_parse_service_type(
398 const char *filename,
413 if (streq(rvalue, "forking"))
414 s->type = SERVICE_FORKING;
415 else if (streq(rvalue, "simple"))
416 s->type = SERVICE_SIMPLE;
418 log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue);
425 static int config_parse_service_restart(
426 const char *filename,
441 if (streq(rvalue, "once"))
442 s->restart = SERVICE_ONCE;
443 else if (streq(rvalue, "on-success"))
444 s->type = SERVICE_RESTART_ON_SUCCESS;
445 else if (streq(rvalue, "always"))
446 s->type = SERVICE_RESTART_ALWAYS;
448 log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue);
455 int config_parse_bindtodevice(
456 const char *filename,
472 if (rvalue[0] && !streq(rvalue, "*")) {
473 if (!(n = strdup(rvalue)))
478 free(s->bind_to_device);
479 s->bind_to_device = n;
484 int config_parse_output(
485 const char *filename,
493 ExecOutput *o = data;
500 if (streq(rvalue, "syslog"))
502 else if (streq(rvalue, "null"))
504 else if (streq(rvalue, "syslog"))
506 else if (streq(rvalue, "kernel"))
509 log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
516 int config_parse_facility(
517 const char *filename,
525 static const char * const table[LOG_NFACILITIES] = {
526 [LOG_FAC(LOG_KERN)] = "kern",
527 [LOG_FAC(LOG_USER)] = "user",
528 [LOG_FAC(LOG_MAIL)] = "mail",
529 [LOG_FAC(LOG_DAEMON)] = "daemon",
530 [LOG_FAC(LOG_AUTH)] = "auth",
531 [LOG_FAC(LOG_SYSLOG)] = "syslog",
532 [LOG_FAC(LOG_LPR)] = "lpr",
533 [LOG_FAC(LOG_NEWS)] = "news",
534 [LOG_FAC(LOG_UUCP)] = "uucp",
535 [LOG_FAC(LOG_CRON)] = "cron",
536 [LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
537 [LOG_FAC(LOG_FTP)] = "ftp",
538 [LOG_FAC(LOG_LOCAL0)] = "local0",
539 [LOG_FAC(LOG_LOCAL1)] = "local1",
540 [LOG_FAC(LOG_LOCAL2)] = "local2",
541 [LOG_FAC(LOG_LOCAL3)] = "local3",
542 [LOG_FAC(LOG_LOCAL4)] = "local4",
543 [LOG_FAC(LOG_LOCAL5)] = "local5",
544 [LOG_FAC(LOG_LOCAL6)] = "local6",
545 [LOG_FAC(LOG_LOCAL7)] = "local7"
548 ExecOutput *o = data;
556 for (i = 0; i < (int) ELEMENTSOF(table); i++)
557 if (streq(rvalue, table[i])) {
558 *o = LOG_MAKEPRI(i, LOG_PRI(*o));
562 if (i >= (int) ELEMENTSOF(table)) {
564 /* Second try, let's see if this is a number. */
565 if (safe_atoi(rvalue, &i) >= 0 &&
567 i < (int) ELEMENTSOF(table))
568 *o = LOG_MAKEPRI(i, LOG_PRI(*o));
570 log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
578 int config_parse_level(
579 const char *filename,
587 static const char * const table[LOG_DEBUG+1] = {
588 [LOG_EMERG] = "emerg",
589 [LOG_ALERT] = "alert",
592 [LOG_WARNING] = "warning",
593 [LOG_NOTICE] = "notice",
595 [LOG_DEBUG] = "debug"
598 ExecOutput *o = data;
606 for (i = 0; i < (int) ELEMENTSOF(table); i++)
607 if (streq(rvalue, table[i])) {
608 *o = LOG_MAKEPRI(LOG_FAC(*o), i);
612 if (i >= LOG_NFACILITIES) {
614 /* Second try, let's see if this is a number. */
615 if (safe_atoi(rvalue, &i) >= 0 &&
617 i < (int) ELEMENTSOF(table))
618 *o = LOG_MAKEPRI(LOG_FAC(*o), i);
620 log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
630 static int open_follow(char **filename, FILE **_f, Set *names, char **_id) {
641 /* This will update the filename pointer if the loaded file is
642 * reached by a symlink. The old string will be freed. */
645 char *target, *k, *name;
647 if (c++ >= FOLLOW_MAX)
650 path_kill_slashes(*filename);
652 /* Add the file name we are currently looking at to
653 * the names of this unit */
654 name = file_name_from_path(*filename);
655 if (!(id = set_get(names, name))) {
657 if (!(id = strdup(name)))
660 if ((r = set_put(names, id)) < 0) {
666 /* Try to open the file name, but don't if its a symlink */
667 if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
673 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
674 if ((r = readlink_malloc(*filename, &target)) < 0)
677 k = file_in_same_dir(*filename, target);
687 if (!(f = fdopen(fd, "r"))) {
689 assert(close_nointr(fd) == 0);
698 static int load_from_path(Unit *u, const char *path) {
700 static const char* const section_table[_UNIT_TYPE_MAX] = {
701 [UNIT_SERVICE] = "Service",
702 [UNIT_TIMER] = "Timer",
703 [UNIT_SOCKET] = "Socket",
704 [UNIT_TARGET] = "Target",
705 [UNIT_DEVICE] = "Device",
706 [UNIT_MOUNT] = "Mount",
707 [UNIT_AUTOMOUNT] = "Automount",
708 [UNIT_SNAPSHOT] = "Snapshot"
711 #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
712 { "Directory", config_parse_path, &(context).directory, section }, \
713 { "User", config_parse_string, &(context).user, section }, \
714 { "Group", config_parse_string, &(context).group, section }, \
715 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
716 { "Nice", config_parse_nice, &(context), section }, \
717 { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \
718 { "UMask", config_parse_umask, &(context).umask, section }, \
719 { "Environment", config_parse_strv, &(context).environment, section }, \
720 { "Output", config_parse_output, &(context).output, section }, \
721 { "SyslogIdentifier", config_parse_string, &(context).syslog_identifier, section }, \
722 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
723 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }
725 const ConfigItem items[] = {
726 { "Names", config_parse_names, u, "Meta" },
727 { "Description", config_parse_string, &u->meta.description, "Meta" },
728 { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Meta" },
729 { "SoftRequires", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUIRES), "Meta" },
730 { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Meta" },
731 { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Meta" },
732 { "SoftRequisite", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUISITE), "Meta" },
733 { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Meta" },
734 { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Meta" },
735 { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Meta" },
737 { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
738 { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
739 { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
740 { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
741 { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
742 { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
743 { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
744 { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
745 { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
746 { "Type", config_parse_service_type, &u->service, "Service" },
747 { "Restart", config_parse_service_restart, &u->service, "Service" },
748 EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
750 { "ListenStream", config_parse_listen, &u->socket, "Socket" },
751 { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
752 { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
753 { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
754 { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
755 { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
756 { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
757 { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
758 { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
759 { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
760 { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
761 EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
763 EXEC_CONTEXT_CONFIG_ITEMS(u->automount.exec_context, "Automount"),
765 { NULL, NULL, NULL, NULL }
768 #undef EXEC_CONTEXT_CONFIG_ITEMS
770 const char *sections[3];
777 sections[0] = "Meta";
778 sections[1] = section_table[u->meta.type];
781 if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
784 /* Instead of opening the path right away, we manually
785 * follow all symlinks and add their name to our unit
786 * name set while doing so */
787 if (!(filename = path_make_absolute(path, unit_path()))) {
792 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
794 r = 0; /* returning 0 means: no suitable config file found */
799 /* Now, parse the file contents */
800 r = config_parse(filename, f, sections, items, u);
804 /* Let's try to add in all symlink names we found */
805 while ((k = set_steal_first(symlink_names))) {
806 if ((r = unit_add_name(u, k)) < 0)
813 unit_choose_id(u, id);
815 free(u->meta.load_path);
816 u->meta.load_path = filename;
819 r = 1; /* returning 1 means: suitable config file found and loaded */
822 while ((k = set_steal_first(symlink_names)))
824 set_free(symlink_names);
830 int unit_load_fragment(Unit *u) {
835 assert(u->meta.load_state == UNIT_STUB);
837 if (u->meta.load_path)
838 r = load_from_path(u, u->meta.load_path);
843 /* Try to find a name we can load this with */
844 SET_FOREACH(t, u->meta.names, i)
845 if ((r = load_from_path(u, t)) != 0)
849 if (u->meta.type == UNIT_SOCKET)
850 c = &u->socket.exec_context;
851 else if (u->meta.type == UNIT_SERVICE)
852 c = &u->service.exec_context;
857 (c->output == EXEC_KERNEL || c->output == EXEC_SYSLOG)) {
860 /* If syslog or kernel logging is requested, make sure
861 * our own logging daemon is run first. */
863 if ((k = unit_add_dependency(u, UNIT_AFTER, u->meta.manager->special_units[SPECIAL_LOGGER_SOCKET])) < 0)
866 if ((k = unit_add_dependency(u, UNIT_REQUIRES, u->meta.manager->special_units[SPECIAL_LOGGER_SOCKET])) < 0)