1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <linux/oom.h>
29 #include <sys/prctl.h>
30 #include <sys/mount.h>
36 #include "conf-parser.h"
37 #include "load-fragment.h"
40 #include "securebits.h"
42 #include "unit-name.h"
43 #include "bus-errors.h"
45 #ifndef HAVE_SYSV_COMPAT
46 static int config_parse_warn_compat(
55 log_debug("[%s:%u] Support for option %s= has been disabled at compile time and is ignored", filename, line, lvalue);
60 static int config_parse_deps(
69 UnitDependency d = PTR_TO_UINT(data);
79 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
83 if (!(t = strndup(w, l)))
86 k = unit_name_printf(u, t);
92 r = unit_add_dependency_by_name(u, d, k, NULL, true);
95 log_error("Failed to add dependency on %s, ignoring: %s", k, strerror(-r));
106 static int config_parse_names(
107 const char *filename,
125 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
129 if (!(t = strndup(w, l)))
132 k = unit_name_printf(u, t);
138 r = unit_merge_by_name(u, k);
141 log_error("Failed to add name %s, ignoring: %s", k, strerror(-r));
152 static int config_parse_string_printf(
153 const char *filename,
171 if (!(k = unit_full_printf(u, rvalue)))
185 static int config_parse_listen(
186 const char *filename,
204 if (!(p = new0(SocketPort, 1)))
207 if (streq(lvalue, "ListenFIFO")) {
208 p->type = SOCKET_FIFO;
210 if (!(p->path = strdup(rvalue))) {
215 path_kill_slashes(p->path);
217 p->type = SOCKET_SOCKET;
219 if (socket_address_parse(&p->address, rvalue) < 0) {
220 log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);
225 if (streq(lvalue, "ListenStream"))
226 p->address.type = SOCK_STREAM;
227 else if (streq(lvalue, "ListenDatagram"))
228 p->address.type = SOCK_DGRAM;
230 assert(streq(lvalue, "ListenSequentialPacket"));
231 p->address.type = SOCK_SEQPACKET;
234 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
235 log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue);
242 LIST_PREPEND(SocketPort, port, s->ports, p);
247 static int config_parse_socket_bind(
248 const char *filename,
257 SocketAddressBindIPv6Only b;
266 if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) {
269 if ((r = parse_boolean(rvalue)) < 0) {
270 log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue);
274 s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
276 s->bind_ipv6_only = b;
281 static int config_parse_nice(
282 const char *filename,
290 ExecContext *c = data;
298 if (safe_atoi(rvalue, &priority) < 0) {
299 log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue);
303 if (priority < PRIO_MIN || priority >= PRIO_MAX) {
304 log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue);
314 static int config_parse_oom_score_adjust(
315 const char *filename,
323 ExecContext *c = data;
331 if (safe_atoi(rvalue, &oa) < 0) {
332 log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue);
336 if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) {
337 log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue);
341 c->oom_score_adjust = oa;
342 c->oom_score_adjust_set = true;
347 static int config_parse_mode(
348 const char *filename,
366 l = strtol(rvalue, &x, 8);
367 if (!x || *x || errno) {
368 log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename, line, rvalue);
372 if (l < 0000 || l > 07777) {
373 log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue);
381 static int config_parse_exec(
382 const char *filename,
390 ExecCommand **e = data, *nce;
399 /* We accept an absolute path as first argument, or
400 * alternatively an absolute prefixed with @ to allow
401 * overriding of argv[0]. */
407 bool honour_argv0 = false, ignore = false;
413 rvalue += strspn(rvalue, WHITESPACE);
418 if (rvalue[0] == '-') {
423 if (rvalue[0] == '@') {
428 if (*rvalue != '/') {
429 log_error("[%s:%u] Invalid executable path in command line, ignoring: %s", filename, line, rvalue);
434 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
435 if (strncmp(w, ";", MAX(l, 1U)) == 0)
441 if (!(n = new(char*, k + !honour_argv0)))
445 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
446 if (strncmp(w, ";", MAX(l, 1U)) == 0)
449 if (honour_argv0 && w == rvalue) {
451 if (!(path = cunescape_length(w, l)))
454 if (!(n[k++] = cunescape_length(w, l)))
462 log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue);
468 if (!(path = strdup(n[0])))
471 assert(path_is_absolute(path));
473 if (!(nce = new0(ExecCommand, 1)))
478 nce->ignore = ignore;
480 path_kill_slashes(nce->path);
482 exec_command_append_list(e, nce);
498 static int config_parse_usec(
499 const char *filename,
514 if (parse_usec(rvalue, usec) < 0) {
515 log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename, line, rvalue);
522 static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
523 static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
525 static int config_parse_bindtodevice(
526 const char *filename,
542 if (rvalue[0] && !streq(rvalue, "*")) {
543 if (!(n = strdup(rvalue)))
548 free(s->bind_to_device);
549 s->bind_to_device = n;
554 static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
555 static DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");
557 static int config_parse_facility(
558 const char *filename,
574 if ((x = log_facility_from_string(rvalue)) < 0) {
575 log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue);
579 *o = LOG_MAKEPRI(x, LOG_PRI(*o));
584 static int config_parse_level(
585 const char *filename,
601 if ((x = log_level_from_string(rvalue)) < 0) {
602 log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue);
606 *o = LOG_MAKEPRI(LOG_FAC(*o), x);
610 static int config_parse_io_class(
611 const char *filename,
619 ExecContext *c = data;
627 if ((x = ioprio_class_from_string(rvalue)) < 0) {
628 log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue);
632 c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
633 c->ioprio_set = true;
638 static int config_parse_io_priority(
639 const char *filename,
647 ExecContext *c = data;
655 if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {
656 log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue);
660 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
661 c->ioprio_set = true;
666 static int config_parse_cpu_sched_policy(
667 const char *filename,
676 ExecContext *c = data;
684 if ((x = sched_policy_from_string(rvalue)) < 0) {
685 log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue);
689 c->cpu_sched_policy = x;
690 c->cpu_sched_set = true;
695 static int config_parse_cpu_sched_prio(
696 const char *filename,
704 ExecContext *c = data;
712 /* On Linux RR/FIFO have the same range */
713 if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) {
714 log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue);
718 c->cpu_sched_priority = i;
719 c->cpu_sched_set = true;
724 static int config_parse_cpu_affinity(
725 const char *filename,
733 ExecContext *c = data;
743 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
748 if (!(t = strndup(w, l)))
751 r = safe_atou(t, &cpu);
755 if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus)))
758 if (r < 0 || cpu >= c->cpuset_ncpus) {
759 log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename, line, rvalue);
763 CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset);
769 static int config_parse_capabilities(
770 const char *filename,
778 ExecContext *c = data;
786 if (!(cap = cap_from_text(rvalue))) {
790 log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue);
795 cap_free(c->capabilities);
796 c->capabilities = cap;
801 static int config_parse_secure_bits(
802 const char *filename,
810 ExecContext *c = data;
820 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
821 if (first_word(w, "keep-caps"))
822 c->secure_bits |= SECURE_KEEP_CAPS;
823 else if (first_word(w, "keep-caps-locked"))
824 c->secure_bits |= SECURE_KEEP_CAPS_LOCKED;
825 else if (first_word(w, "no-setuid-fixup"))
826 c->secure_bits |= SECURE_NO_SETUID_FIXUP;
827 else if (first_word(w, "no-setuid-fixup-locked"))
828 c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED;
829 else if (first_word(w, "noroot"))
830 c->secure_bits |= SECURE_NOROOT;
831 else if (first_word(w, "noroot-locked"))
832 c->secure_bits |= SECURE_NOROOT_LOCKED;
834 log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename, line, rvalue);
842 static int config_parse_bounding_set(
843 const char *filename,
851 ExecContext *c = data;
863 if (rvalue[0] == '~') {
868 /* Note that we store this inverted internally, since the
869 * kernel wants it like this. But we actually expose it
870 * non-inverted everywhere to have a fully normalized
873 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
878 if (!(t = strndup(w, l)))
881 r = cap_from_name(t, &cap);
885 log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename, line, rvalue);
889 sum |= ((uint64_t) 1ULL) << (uint64_t) cap;
893 c->capability_bounding_set_drop |= sum;
895 c->capability_bounding_set_drop |= ~sum;
900 static int config_parse_timer_slack_nsec(
901 const char *filename,
909 ExecContext *c = data;
917 if (safe_atolu(rvalue, &u) < 0) {
918 log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename, line, rvalue);
922 c->timer_slack_nsec = u;
927 static int config_parse_limit(
928 const char *filename,
936 struct rlimit **rl = data;
937 unsigned long long u;
944 if (safe_atollu(rvalue, &u) < 0) {
945 log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue);
950 if (!(*rl = new(struct rlimit, 1)))
953 (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;
957 static int config_parse_cgroup(
958 const char *filename,
971 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
975 if (!(t = cunescape_length(w, l)))
978 r = unit_add_cgroup_from_text(u, t);
982 log_error("[%s:%u] Failed to parse cgroup value, ignoring: %s", filename, line, rvalue);
990 #ifdef HAVE_SYSV_COMPAT
991 static int config_parse_sysv_priority(
992 const char *filename,
1000 int *priority = data;
1008 if (safe_atoi(rvalue, &i) < 0 || i < 0) {
1009 log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue);
1013 *priority = (int) i;
1018 static int config_parse_fsck_passno(
1019 const char *filename,
1021 const char *section,
1035 if (safe_atoi(rvalue, &i) || i < 0) {
1036 log_error("[%s:%u] Failed to parse fsck pass number, ignoring: %s", filename, line, rvalue);
1044 static DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
1046 static int config_parse_kill_signal(
1047 const char *filename,
1049 const char *section,
1063 if ((r = signal_from_string_try_harder(rvalue)) <= 0) {
1064 log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue);
1072 static int config_parse_mount_flags(
1073 const char *filename,
1075 const char *section,
1081 ExecContext *c = data;
1085 unsigned long flags = 0;
1092 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
1093 if (strncmp(w, "shared", MAX(l, 6U)) == 0)
1095 else if (strncmp(w, "slave", MAX(l, 5U)) == 0)
1097 else if (strncmp(w, "private", MAX(l, 7U)) == 0)
1098 flags |= MS_PRIVATE;
1100 log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue);
1105 c->mount_flags = flags;
1109 static int config_parse_timer(
1110 const char *filename,
1112 const char *section,
1128 if ((b = timer_base_from_string(lvalue)) < 0) {
1129 log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue);
1133 if (parse_usec(rvalue, &u) < 0) {
1134 log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue);
1138 if (!(v = new0(TimerValue, 1)))
1144 LIST_PREPEND(TimerValue, value, t->values, v);
1149 static int config_parse_timer_unit(
1150 const char *filename,
1152 const char *section,
1167 dbus_error_init(&error);
1169 if (endswith(rvalue, ".timer")) {
1170 log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue);
1174 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, NULL, &t->unit)) < 0) {
1175 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
1176 dbus_error_free(&error);
1183 static int config_parse_path_spec(
1184 const char *filename,
1186 const char *section,
1201 if ((b = path_type_from_string(lvalue)) < 0) {
1202 log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue);
1206 if (!path_is_absolute(rvalue)) {
1207 log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue);
1211 if (!(s = new0(PathSpec, 1)))
1214 if (!(s->path = strdup(rvalue))) {
1219 path_kill_slashes(s->path);
1224 LIST_PREPEND(PathSpec, spec, p->specs, s);
1229 static int config_parse_path_unit(
1230 const char *filename,
1232 const char *section,
1247 dbus_error_init(&error);
1249 if (endswith(rvalue, ".path")) {
1250 log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue);
1254 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &error, &t->unit)) < 0) {
1255 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
1256 dbus_error_free(&error);
1263 static int config_parse_socket_service(
1264 const char *filename,
1266 const char *section,
1281 dbus_error_init(&error);
1283 if (!endswith(rvalue, ".service")) {
1284 log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename, line, rvalue);
1288 if ((r = manager_load_unit(s->meta.manager, rvalue, NULL, &error, (Unit**) &s->service)) < 0) {
1289 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
1290 dbus_error_free(&error);
1297 static int config_parse_service_sockets(
1298 const char *filename,
1300 const char *section,
1317 dbus_error_init(&error);
1319 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
1323 if (!(t = strndup(w, l)))
1326 if (!endswith(t, ".socket")) {
1327 log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename, line, rvalue);
1332 r = manager_load_unit(s->meta.manager, t, NULL, &error, &sock);
1336 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
1337 dbus_error_free(&error);
1341 if ((r = set_ensure_allocated(&s->configured_sockets, trivial_hash_func, trivial_compare_func)) < 0)
1344 if ((r = set_put(s->configured_sockets, sock)) < 0)
1351 static int config_parse_env_file(
1352 const char *filename,
1354 const char *section,
1360 char ***env = data, **k;
1367 if (!path_is_absolute(rvalue[0] == '-' ? rvalue + 1 : rvalue)) {
1368 log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, rvalue);
1372 if (!(k = strv_append(*env, rvalue)))
1381 static int config_parse_ip_tos(
1382 const char *filename,
1384 const char *section,
1390 int *ip_tos = data, x;
1397 if ((x = ip_tos_from_string(rvalue)) < 0)
1398 if (safe_atoi(rvalue, &x) < 0) {
1399 log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);
1407 static int config_parse_condition_path(
1408 const char *filename,
1410 const char *section,
1417 bool trigger, negate;
1425 if ((trigger = rvalue[0] == '|'))
1428 if ((negate = rvalue[0] == '!'))
1431 if (!path_is_absolute(rvalue)) {
1432 log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, rvalue);
1436 if (!(c = condition_new(streq(lvalue, "ConditionPathExists") ? CONDITION_PATH_EXISTS : CONDITION_DIRECTORY_NOT_EMPTY,
1437 rvalue, trigger, negate)))
1440 LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
1444 static int config_parse_condition_kernel(
1445 const char *filename,
1447 const char *section,
1454 bool trigger, negate;
1462 if ((trigger = rvalue[0] == '|'))
1465 if ((negate = rvalue[0] == '!'))
1468 if (!(c = condition_new(CONDITION_KERNEL_COMMAND_LINE, rvalue, trigger, negate)))
1471 LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
1475 static int config_parse_condition_virt(
1476 const char *filename,
1478 const char *section,
1485 bool trigger, negate;
1493 if ((trigger = rvalue[0] == '|'))
1496 if ((negate = rvalue[0] == '!'))
1499 if (!(c = condition_new(CONDITION_VIRTUALIZATION, rvalue, trigger, negate)))
1502 LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
1506 static int config_parse_condition_null(
1507 const char *filename,
1509 const char *section,
1517 bool trigger, negate;
1525 if ((trigger = rvalue[0] == '|'))
1528 if ((negate = rvalue[0] == '!'))
1531 if ((b = parse_boolean(rvalue)) < 0) {
1532 log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue);
1539 if (!(c = condition_new(CONDITION_NULL, NULL, trigger, negate)))
1542 LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
1546 static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
1548 #define FOLLOW_MAX 8
1550 static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
1561 /* This will update the filename pointer if the loaded file is
1562 * reached by a symlink. The old string will be freed. */
1565 char *target, *name;
1567 if (c++ >= FOLLOW_MAX)
1570 path_kill_slashes(*filename);
1572 /* Add the file name we are currently looking at to
1573 * the names of this unit, but only if it is a valid
1575 name = file_name_from_path(*filename);
1577 if (unit_name_is_valid(name, false)) {
1578 if (!(id = set_get(names, name))) {
1580 if (!(id = strdup(name)))
1583 if ((r = set_put(names, id)) < 0) {
1590 /* Try to open the file name, but don't if its a symlink */
1591 if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
1597 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
1598 if ((r = readlink_and_make_absolute(*filename, &target)) < 0)
1605 if (!(f = fdopen(fd, "re"))) {
1607 close_nointr_nofail(fd);
1616 static int merge_by_names(Unit **u, Set *names, const char *id) {
1624 /* Let's try to add in all symlink names we found */
1625 while ((k = set_steal_first(names))) {
1627 /* First try to merge in the other name into our
1629 if ((r = unit_merge_by_name(*u, k)) < 0) {
1632 /* Hmm, we couldn't merge the other unit into
1633 * ours? Then let's try it the other way
1636 other = manager_get_unit((*u)->meta.manager, k);
1640 if ((r = unit_merge(other, *u)) >= 0) {
1642 return merge_by_names(u, names, NULL);
1649 unit_choose_id(*u, id);
1657 static void dump_items(FILE *f, const ConfigItem *items) {
1658 const ConfigItem *i;
1659 const char *prev_section = NULL;
1660 bool not_first = false;
1663 ConfigParserCallback callback;
1666 { config_parse_int, "INTEGER" },
1667 { config_parse_unsigned, "UNSIGNED" },
1668 { config_parse_size, "SIZE" },
1669 { config_parse_bool, "BOOLEAN" },
1670 { config_parse_string, "STRING" },
1671 { config_parse_path, "PATH" },
1672 { config_parse_strv, "STRING [...]" },
1673 { config_parse_nice, "NICE" },
1674 { config_parse_oom_score_adjust, "OOMSCOREADJUST" },
1675 { config_parse_io_class, "IOCLASS" },
1676 { config_parse_io_priority, "IOPRIORITY" },
1677 { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" },
1678 { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" },
1679 { config_parse_cpu_affinity, "CPUAFFINITY" },
1680 { config_parse_mode, "MODE" },
1681 { config_parse_env_file, "FILE" },
1682 { config_parse_output, "OUTPUT" },
1683 { config_parse_input, "INPUT" },
1684 { config_parse_facility, "FACILITY" },
1685 { config_parse_level, "LEVEL" },
1686 { config_parse_capabilities, "CAPABILITIES" },
1687 { config_parse_secure_bits, "SECUREBITS" },
1688 { config_parse_bounding_set, "BOUNDINGSET" },
1689 { config_parse_timer_slack_nsec, "TIMERSLACK" },
1690 { config_parse_limit, "LIMIT" },
1691 { config_parse_cgroup, "CGROUP [...]" },
1692 { config_parse_deps, "UNIT [...]" },
1693 { config_parse_names, "UNIT [...]" },
1694 { config_parse_exec, "PATH [ARGUMENT [...]]" },
1695 { config_parse_service_type, "SERVICETYPE" },
1696 { config_parse_service_restart, "SERVICERESTART" },
1697 #ifdef HAVE_SYSV_COMPAT
1698 { config_parse_sysv_priority, "SYSVPRIORITY" },
1700 { config_parse_warn_compat, "NOTSUPPORTED" },
1702 { config_parse_kill_mode, "KILLMODE" },
1703 { config_parse_kill_signal, "SIGNAL" },
1704 { config_parse_listen, "SOCKET [...]" },
1705 { config_parse_socket_bind, "SOCKETBIND" },
1706 { config_parse_bindtodevice, "NETWORKINTERFACE" },
1707 { config_parse_usec, "SECONDS" },
1708 { config_parse_path_strv, "PATH [...]" },
1709 { config_parse_mount_flags, "MOUNTFLAG [...]" },
1710 { config_parse_string_printf, "STRING" },
1711 { config_parse_timer, "TIMER" },
1712 { config_parse_timer_unit, "NAME" },
1713 { config_parse_path_spec, "PATH" },
1714 { config_parse_path_unit, "UNIT" },
1715 { config_parse_notify_access, "ACCESS" },
1716 { config_parse_ip_tos, "TOS" },
1717 { config_parse_condition_path, "CONDITION" },
1718 { config_parse_condition_kernel, "CONDITION" },
1719 { config_parse_condition_null, "CONDITION" },
1720 { config_parse_condition_virt, "CONDITION" },
1726 for (i = items; i->lvalue; i++) {
1728 const char *rvalue = "OTHER";
1730 if (!streq_ptr(i->section, prev_section)) {
1736 fprintf(f, "[%s]\n", i->section);
1737 prev_section = i->section;
1740 for (j = 0; j < ELEMENTSOF(table); j++)
1741 if (i->parse == table[j].callback) {
1742 rvalue = table[j].rvalue;
1746 fprintf(f, "%s=%s\n", i->lvalue, rvalue);
1750 static int load_from_path(Unit *u, const char *path) {
1752 static const char* const section_table[_UNIT_TYPE_MAX] = {
1753 [UNIT_SERVICE] = "Service",
1754 [UNIT_TIMER] = "Timer",
1755 [UNIT_SOCKET] = "Socket",
1756 [UNIT_TARGET] = "Target",
1757 [UNIT_DEVICE] = "Device",
1758 [UNIT_MOUNT] = "Mount",
1759 [UNIT_AUTOMOUNT] = "Automount",
1760 [UNIT_SNAPSHOT] = "Snapshot",
1761 [UNIT_SWAP] = "Swap",
1762 [UNIT_PATH] = "Path"
1765 #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
1766 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
1767 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
1768 { "User", config_parse_string_printf, &(context).user, section }, \
1769 { "Group", config_parse_string_printf, &(context).group, section }, \
1770 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
1771 { "Nice", config_parse_nice, &(context), section }, \
1772 { "OOMScoreAdjust", config_parse_oom_score_adjust,&(context), section }, \
1773 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
1774 { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \
1775 { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \
1776 { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \
1777 { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \
1778 { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \
1779 { "UMask", config_parse_mode, &(context).umask, section }, \
1780 { "Environment", config_parse_strv, &(context).environment, section }, \
1781 { "EnvironmentFile", config_parse_env_file, &(context).environment_files, section }, \
1782 { "StandardInput", config_parse_input, &(context).std_input, section }, \
1783 { "StandardOutput", config_parse_output, &(context).std_output, section }, \
1784 { "StandardError", config_parse_output, &(context).std_error, section }, \
1785 { "TTYPath", config_parse_path, &(context).tty_path, section }, \
1786 { "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \
1787 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
1788 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \
1789 { "SyslogLevelPrefix", config_parse_bool, &(context).syslog_level_prefix, section }, \
1790 { "Capabilities", config_parse_capabilities, &(context), section }, \
1791 { "SecureBits", config_parse_secure_bits, &(context), section }, \
1792 { "CapabilityBoundingSet", config_parse_bounding_set, &(context), section }, \
1793 { "TimerSlackNSec", config_parse_timer_slack_nsec,&(context), section }, \
1794 { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \
1795 { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \
1796 { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \
1797 { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \
1798 { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \
1799 { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \
1800 { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \
1801 { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \
1802 { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \
1803 { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \
1804 { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \
1805 { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \
1806 { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \
1807 { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \
1808 { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \
1809 { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \
1810 { "ControlGroup", config_parse_cgroup, u, section }, \
1811 { "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \
1812 { "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \
1813 { "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \
1814 { "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \
1815 { "MountFlags", config_parse_mount_flags, &(context), section }, \
1816 { "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \
1817 { "PAMName", config_parse_string_printf, &(context).pam_name, section }, \
1818 { "KillMode", config_parse_kill_mode, &(context).kill_mode, section }, \
1819 { "KillSignal", config_parse_kill_signal, &(context).kill_signal, section }, \
1820 { "SendSIGKILL", config_parse_bool, &(context).send_sigkill, section }, \
1821 { "UtmpIdentifier", config_parse_string_printf, &(context).utmp_id, section }
1823 const ConfigItem items[] = {
1824 { "Names", config_parse_names, u, "Unit" },
1825 { "Description", config_parse_string_printf, &u->meta.description, "Unit" },
1826 { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Unit" },
1827 { "RequiresOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" },
1828 { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Unit" },
1829 { "RequisiteOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" },
1830 { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Unit" },
1831 { "BindTo", config_parse_deps, UINT_TO_PTR(UNIT_BIND_TO), "Unit" },
1832 { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" },
1833 { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Unit" },
1834 { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Unit" },
1835 { "OnFailure", config_parse_deps, UINT_TO_PTR(UNIT_ON_FAILURE), "Unit" },
1836 { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" },
1837 { "RefuseManualStart", config_parse_bool, &u->meta.refuse_manual_start, "Unit" },
1838 { "RefuseManualStop", config_parse_bool, &u->meta.refuse_manual_stop, "Unit" },
1839 { "AllowIsolate", config_parse_bool, &u->meta.allow_isolate, "Unit" },
1840 { "DefaultDependencies", config_parse_bool, &u->meta.default_dependencies, "Unit" },
1841 { "JobTimeoutSec", config_parse_usec, &u->meta.job_timeout, "Unit" },
1842 { "ConditionPathExists", config_parse_condition_path, u, "Unit" },
1843 { "ConditionDirectoryNotEmpty", config_parse_condition_path, u, "Unit" },
1844 { "ConditionKernelCommandLine", config_parse_condition_kernel, u, "Unit" },
1845 { "ConditionVirtualization",config_parse_condition_virt, u, "Unit" },
1846 { "ConditionNull", config_parse_condition_null, u, "Unit" },
1848 { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
1849 { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
1850 { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
1851 { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
1852 { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
1853 { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
1854 { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
1855 { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
1856 { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
1857 { "Type", config_parse_service_type, &u->service.type, "Service" },
1858 { "Restart", config_parse_service_restart, &u->service.restart, "Service" },
1859 { "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" },
1860 { "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" },
1861 { "RemainAfterExit", config_parse_bool, &u->service.remain_after_exit, "Service" },
1862 { "GuessMainPID", config_parse_bool, &u->service.guess_main_pid, "Service" },
1863 #ifdef HAVE_SYSV_COMPAT
1864 { "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" },
1866 { "SysVStartPriority", config_parse_warn_compat, NULL, "Service" },
1868 { "NonBlocking", config_parse_bool, &u->service.exec_context.non_blocking, "Service" },
1869 { "BusName", config_parse_string_printf, &u->service.bus_name, "Service" },
1870 { "NotifyAccess", config_parse_notify_access, &u->service.notify_access, "Service" },
1871 { "Sockets", config_parse_service_sockets, &u->service, "Service" },
1872 { "FsckPassNo", config_parse_fsck_passno, &u->service.fsck_passno, "Service" },
1873 EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
1875 { "ListenStream", config_parse_listen, &u->socket, "Socket" },
1876 { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
1877 { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
1878 { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
1879 { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
1880 { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
1881 { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
1882 { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
1883 { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
1884 { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
1885 { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
1886 { "TimeoutSec", config_parse_usec, &u->socket.timeout_usec, "Socket" },
1887 { "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" },
1888 { "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" },
1889 { "Accept", config_parse_bool, &u->socket.accept, "Socket" },
1890 { "MaxConnections", config_parse_unsigned, &u->socket.max_connections, "Socket" },
1891 { "KeepAlive", config_parse_bool, &u->socket.keep_alive, "Socket" },
1892 { "Priority", config_parse_int, &u->socket.priority, "Socket" },
1893 { "ReceiveBuffer", config_parse_size, &u->socket.receive_buffer, "Socket" },
1894 { "SendBuffer", config_parse_size, &u->socket.send_buffer, "Socket" },
1895 { "IPTOS", config_parse_ip_tos, &u->socket.ip_tos, "Socket" },
1896 { "IPTTL", config_parse_int, &u->socket.ip_ttl, "Socket" },
1897 { "Mark", config_parse_int, &u->socket.mark, "Socket" },
1898 { "PipeSize", config_parse_size, &u->socket.pipe_size, "Socket" },
1899 { "FreeBind", config_parse_bool, &u->socket.free_bind, "Socket" },
1900 { "TCPCongestion", config_parse_string, &u->socket.tcp_congestion, "Socket" },
1901 { "Service", config_parse_socket_service, &u->socket, "Socket" },
1902 EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
1904 { "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" },
1905 { "Where", config_parse_path, &u->mount.where, "Mount" },
1906 { "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" },
1907 { "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" },
1908 { "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" },
1909 { "DirectoryMode", config_parse_mode, &u->mount.directory_mode, "Mount" },
1910 EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"),
1912 { "Where", config_parse_path, &u->automount.where, "Automount" },
1913 { "DirectoryMode", config_parse_mode, &u->automount.directory_mode, "Automount" },
1915 { "What", config_parse_path, &u->swap.parameters_fragment.what, "Swap" },
1916 { "Priority", config_parse_int, &u->swap.parameters_fragment.priority, "Swap" },
1917 { "TimeoutSec", config_parse_usec, &u->swap.timeout_usec, "Swap" },
1918 EXEC_CONTEXT_CONFIG_ITEMS(u->swap.exec_context, "Swap"),
1920 { "OnActiveSec", config_parse_timer, &u->timer, "Timer" },
1921 { "OnBootSec", config_parse_timer, &u->timer, "Timer" },
1922 { "OnStartupSec", config_parse_timer, &u->timer, "Timer" },
1923 { "OnUnitActiveSec", config_parse_timer, &u->timer, "Timer" },
1924 { "OnUnitInactiveSec", config_parse_timer, &u->timer, "Timer" },
1925 { "Unit", config_parse_timer_unit, &u->timer, "Timer" },
1927 { "PathExists", config_parse_path_spec, &u->path, "Path" },
1928 { "PathChanged", config_parse_path_spec, &u->path, "Path" },
1929 { "DirectoryNotEmpty", config_parse_path_spec, &u->path, "Path" },
1930 { "Unit", config_parse_path_unit, &u->path, "Path" },
1932 /* The [Install] section is ignored here. */
1933 { "Alias", NULL, NULL, "Install" },
1934 { "WantedBy", NULL, NULL, "Install" },
1935 { "Also", NULL, NULL, "Install" },
1937 { NULL, NULL, NULL, NULL }
1940 #undef EXEC_CONTEXT_CONFIG_ITEMS
1942 const char *sections[4];
1946 char *filename = NULL, *id = NULL;
1951 /* Dirty dirty hack. */
1952 dump_items((FILE*) path, items);
1959 sections[0] = "Unit";
1960 sections[1] = section_table[u->meta.type];
1961 sections[2] = "Install";
1964 if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
1967 if (path_is_absolute(path)) {
1969 if (!(filename = strdup(path))) {
1974 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1985 STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) {
1987 /* Instead of opening the path right away, we manually
1988 * follow all symlinks and add their name to our unit
1989 * name set while doing so */
1990 if (!(filename = path_make_absolute(path, *p))) {
1995 if (u->meta.manager->unit_path_cache &&
1996 !set_get(u->meta.manager->unit_path_cache, filename))
1999 r = open_follow(&filename, &f, symlink_names, &id);
2010 /* Empty the symlink names for the next run */
2011 while ((sn = set_steal_first(symlink_names)))
2022 /* Hmm, no suitable file found? */
2028 if ((r = merge_by_names(&merged, symlink_names, id)) < 0)
2032 u->meta.load_state = UNIT_MERGED;
2038 if (fstat(fileno(f), &st) < 0) {
2043 if (null_or_empty(&st))
2044 u->meta.load_state = UNIT_MASKED;
2046 /* Now, parse the file contents */
2047 if ((r = config_parse(filename, f, sections, items, false, u)) < 0)
2050 u->meta.load_state = UNIT_LOADED;
2053 free(u->meta.fragment_path);
2054 u->meta.fragment_path = filename;
2057 u->meta.fragment_mtime = timespec_load(&st.st_mtim);
2062 set_free_free(symlink_names);
2071 int unit_load_fragment(Unit *u) {
2077 assert(u->meta.load_state == UNIT_STUB);
2080 /* First, try to find the unit under its id. We always look
2081 * for unit files in the default directories, to make it easy
2082 * to override things by placing things in /etc/systemd/system */
2083 if ((r = load_from_path(u, u->meta.id)) < 0)
2086 /* Try to find an alias we can load this with */
2087 if (u->meta.load_state == UNIT_STUB)
2088 SET_FOREACH(t, u->meta.names, i) {
2090 if (t == u->meta.id)
2093 if ((r = load_from_path(u, t)) < 0)
2096 if (u->meta.load_state != UNIT_STUB)
2100 /* And now, try looking for it under the suggested (originally linked) path */
2101 if (u->meta.load_state == UNIT_STUB && u->meta.fragment_path) {
2103 if ((r = load_from_path(u, u->meta.fragment_path)) < 0)
2106 if (u->meta.load_state == UNIT_STUB) {
2107 /* Hmm, this didn't work? Then let's get rid
2108 * of the fragment path stored for us, so that
2109 * we don't point to an invalid location. */
2110 free(u->meta.fragment_path);
2111 u->meta.fragment_path = NULL;
2115 /* Look for a template */
2116 if (u->meta.load_state == UNIT_STUB && u->meta.instance) {
2119 if (!(k = unit_name_template(u->meta.id)))
2122 r = load_from_path(u, k);
2128 if (u->meta.load_state == UNIT_STUB)
2129 SET_FOREACH(t, u->meta.names, i) {
2131 if (t == u->meta.id)
2134 if (!(k = unit_name_template(t)))
2137 r = load_from_path(u, k);
2143 if (u->meta.load_state != UNIT_STUB)
2151 void unit_dump_config_items(FILE *f) {
2152 /* OK, this wins a prize for extreme ugliness. */
2154 load_from_path(NULL, (const void*) f);