1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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>
35 #include "conf-parser.h"
36 #include "load-fragment.h"
39 #include "securebits.h"
41 #include "unit-name.h"
43 #define COMMENTS "#;\n"
46 #define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg) \
47 static int function( \
48 const char *filename, \
50 const char *section, \
63 if ((x = name##_from_string(rvalue)) < 0) { \
64 log_error("[%s:%u] " msg ": %s", filename, line, rvalue); \
73 static int config_parse_deps(
82 UnitDependency d = PTR_TO_UINT(data);
92 FOREACH_WORD(w, l, rvalue, state) {
96 if (!(t = strndup(w, l)))
99 k = unit_name_printf(u, t);
105 r = unit_add_dependency_by_name(u, d, k, NULL, true);
115 static int config_parse_names(
116 const char *filename,
134 FOREACH_WORD(w, l, rvalue, state) {
138 if (!(t = strndup(w, l)))
141 k = unit_name_printf(u, t);
147 r = unit_merge_by_name(u, k);
157 static int config_parse_string_printf(
158 const char *filename,
176 if (!(k = unit_full_printf(u, rvalue)))
190 static int config_parse_listen(
191 const char *filename,
210 if (!(p = new0(SocketPort, 1)))
213 if (streq(lvalue, "ListenFIFO")) {
214 p->type = SOCKET_FIFO;
216 if (!(p->path = strdup(rvalue))) {
221 path_kill_slashes(p->path);
223 p->type = SOCKET_SOCKET;
225 if ((r = socket_address_parse(&p->address, rvalue)) < 0) {
226 log_error("[%s:%u] Failed to parse address value: %s", filename, line, rvalue);
231 if (streq(lvalue, "ListenStream"))
232 p->address.type = SOCK_STREAM;
233 else if (streq(lvalue, "ListenDatagram"))
234 p->address.type = SOCK_DGRAM;
236 assert(streq(lvalue, "ListenSequentialPacket"));
237 p->address.type = SOCK_SEQPACKET;
240 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
242 return -EPROTONOSUPPORT;
247 LIST_PREPEND(SocketPort, port, s->ports, p);
252 static int config_parse_socket_bind(
253 const char *filename,
262 SocketAddressBindIPv6Only b;
271 if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) {
274 if ((r = parse_boolean(rvalue)) < 0) {
275 log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename, line, rvalue);
279 s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
281 s->bind_ipv6_only = b;
286 static int config_parse_nice(
287 const char *filename,
295 ExecContext *c = data;
303 if ((r = safe_atoi(rvalue, &priority)) < 0) {
304 log_error("[%s:%u] Failed to parse nice priority: %s", filename, line, rvalue);
308 if (priority < PRIO_MIN || priority >= PRIO_MAX) {
309 log_error("[%s:%u] Nice priority out of range: %s", filename, line, rvalue);
319 static int config_parse_oom_adjust(
320 const char *filename,
328 ExecContext *c = data;
336 if ((r = safe_atoi(rvalue, &oa)) < 0) {
337 log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename, line, rvalue);
341 if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) {
342 log_error("[%s:%u] OOM adjust value out of range: %s", filename, line, rvalue);
347 c->oom_adjust_set = true;
352 static int config_parse_mode(
353 const char *filename,
371 l = strtol(rvalue, &x, 8);
372 if (!x || *x || errno) {
373 log_error("[%s:%u] Failed to parse mode value: %s", filename, line, rvalue);
374 return errno ? -errno : -EINVAL;
377 if (l < 0000 || l > 07777) {
378 log_error("[%s:%u] mode value out of range: %s", filename, line, rvalue);
386 static int config_parse_exec(
387 const char *filename,
395 ExecCommand **e = data, *nce = NULL;
400 char *state, *path = NULL;
401 bool honour_argv0, write_to_path;
408 /* We accept an absolute path as first argument, or
409 * alternatively an absolute prefixed with @ to allow
410 * overriding of argv[0]. */
412 honour_argv0 = rvalue[0] == '@';
414 if (rvalue[honour_argv0 ? 1 : 0] != '/') {
415 log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue);
420 FOREACH_WORD_QUOTED(w, l, rvalue, state)
423 if (!(n = new(char*, k + (honour_argv0 ? 0 : 1))))
427 write_to_path = honour_argv0;
428 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
430 if (!(path = strndup(w+1, l-1)))
432 write_to_path = false;
434 if (!(n[k++] = strndup(w, l)))
442 log_error("[%s:%u] Invalid command line: %s", filename, line, rvalue);
448 if (!(path = strdup(n[0])))
451 assert(path_is_absolute(path));
453 if (!(nce = new0(ExecCommand, 1)))
459 path_kill_slashes(nce->path);
461 exec_command_append_list(e, nce);
474 static int config_parse_usec(
475 const char *filename,
491 if ((r = parse_usec(rvalue, usec)) < 0) {
492 log_error("[%s:%u] Failed to parse time value: %s", filename, line, rvalue);
499 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
500 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
502 static int config_parse_bindtodevice(
503 const char *filename,
519 if (rvalue[0] && !streq(rvalue, "*")) {
520 if (!(n = strdup(rvalue)))
525 free(s->bind_to_device);
526 s->bind_to_device = n;
531 DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
532 DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");
534 static int config_parse_facility(
535 const char *filename,
551 if ((x = log_facility_from_string(rvalue)) < 0) {
552 log_error("[%s:%u] Failed to parse log facility: %s", filename, line, rvalue);
556 *o = LOG_MAKEPRI(x, LOG_PRI(*o));
561 static int config_parse_level(
562 const char *filename,
578 if ((x = log_level_from_string(rvalue)) < 0) {
579 log_error("[%s:%u] Failed to parse log level: %s", filename, line, rvalue);
583 *o = LOG_MAKEPRI(LOG_FAC(*o), x);
587 static int config_parse_io_class(
588 const char *filename,
596 ExecContext *c = data;
604 if ((x = ioprio_class_from_string(rvalue)) < 0) {
605 log_error("[%s:%u] Failed to parse IO scheduling class: %s", filename, line, rvalue);
609 c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
610 c->ioprio_set = true;
615 static int config_parse_io_priority(
616 const char *filename,
624 ExecContext *c = data;
632 if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {
633 log_error("[%s:%u] Failed to parse io priority: %s", filename, line, rvalue);
637 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
638 c->ioprio_set = true;
643 static int config_parse_cpu_sched_policy(
644 const char *filename,
653 ExecContext *c = data;
661 if ((x = sched_policy_from_string(rvalue)) < 0) {
662 log_error("[%s:%u] Failed to parse CPU scheduling policy: %s", filename, line, rvalue);
666 c->cpu_sched_policy = x;
667 c->cpu_sched_set = true;
672 static int config_parse_cpu_sched_prio(
673 const char *filename,
681 ExecContext *c = data;
689 /* On Linux RR/FIFO have the same range */
690 if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) {
691 log_error("[%s:%u] Failed to parse CPU scheduling priority: %s", filename, line, rvalue);
695 c->cpu_sched_priority = i;
696 c->cpu_sched_set = true;
701 static int config_parse_cpu_affinity(
702 const char *filename,
710 ExecContext *c = data;
720 FOREACH_WORD(w, l, rvalue, state) {
725 if (!(t = strndup(w, l)))
728 r = safe_atou(t, &cpu);
731 if (r < 0 || cpu >= CPU_SETSIZE) {
732 log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue);
736 CPU_SET(cpu, &c->cpu_affinity);
739 c->cpu_affinity_set = true;
744 static int config_parse_capabilities(
745 const char *filename,
753 ExecContext *c = data;
761 if (!(cap = cap_from_text(rvalue))) {
765 log_error("[%s:%u] Failed to parse capabilities: %s", filename, line, rvalue);
770 cap_free(c->capabilities);
771 c->capabilities = cap;
776 static int config_parse_secure_bits(
777 const char *filename,
785 ExecContext *c = data;
795 FOREACH_WORD(w, l, rvalue, state) {
796 if (first_word(w, "keep-caps"))
797 c->secure_bits |= SECURE_KEEP_CAPS;
798 else if (first_word(w, "keep-caps-locked"))
799 c->secure_bits |= SECURE_KEEP_CAPS_LOCKED;
800 else if (first_word(w, "no-setuid-fixup"))
801 c->secure_bits |= SECURE_NO_SETUID_FIXUP;
802 else if (first_word(w, "no-setuid-fixup-locked"))
803 c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED;
804 else if (first_word(w, "noroot"))
805 c->secure_bits |= SECURE_NOROOT;
806 else if (first_word(w, "noroot-locked"))
807 c->secure_bits |= SECURE_NOROOT_LOCKED;
809 log_error("[%s:%u] Failed to parse secure bits: %s", filename, line, rvalue);
817 static int config_parse_bounding_set(
818 const char *filename,
826 ExecContext *c = data;
836 FOREACH_WORD(w, l, rvalue, state) {
841 if (!(t = strndup(w, l)))
844 r = cap_from_name(t, &cap);
848 log_error("[%s:%u] Failed to parse capability bounding set: %s", filename, line, rvalue);
852 c->capability_bounding_set_drop |= 1 << cap;
858 static int config_parse_timer_slack_ns(
859 const char *filename,
867 ExecContext *c = data;
876 if ((r = safe_atolu(rvalue, &u)) < 0) {
877 log_error("[%s:%u] Failed to parse time slack value: %s", filename, line, rvalue);
881 c->timer_slack_ns = u;
886 static int config_parse_limit(
887 const char *filename,
895 struct rlimit **rl = data;
896 unsigned long long u;
904 if ((r = safe_atollu(rvalue, &u)) < 0) {
905 log_error("[%s:%u] Failed to parse resource value: %s", filename, line, rvalue);
910 if (!(*rl = new(struct rlimit, 1)))
913 (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;
917 static int config_parse_cgroup(
918 const char *filename,
931 FOREACH_WORD(w, l, rvalue, state) {
935 if (!(t = strndup(w, l)))
938 r = unit_add_cgroup_from_text(u, t);
948 static int config_parse_sysv_priority(
949 const char *filename,
957 int *priority = data;
965 if ((r = safe_atoi(rvalue, &i)) < 0 || i < 0) {
966 log_error("[%s:%u] Failed to parse SysV start priority: %s", filename, line, rvalue);
974 DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
976 static int config_parse_mount_flags(
977 const char *filename,
985 ExecContext *c = data;
989 unsigned long flags = 0;
996 FOREACH_WORD(w, l, rvalue, state) {
997 if (strncmp(w, "shared", l) == 0)
999 else if (strncmp(w, "slave", l) == 0)
1001 else if (strncmp(w, "private", l) == 0)
1002 flags |= MS_PRIVATE;
1004 log_error("[%s:%u] Failed to parse mount flags: %s", filename, line, rvalue);
1009 c->mount_flags = flags;
1013 static int config_parse_timer(
1014 const char *filename,
1016 const char *section,
1033 if ((b = timer_base_from_string(lvalue)) < 0) {
1034 log_error("[%s:%u] Failed to parse timer base: %s", filename, line, lvalue);
1038 if ((r = parse_usec(rvalue, &u)) < 0) {
1039 log_error("[%s:%u] Failed to parse timer value: %s", filename, line, rvalue);
1043 if (!(v = new0(TimerValue, 1)))
1049 LIST_PREPEND(TimerValue, value, t->values, v);
1054 static int config_parse_timer_unit(
1055 const char *filename,
1057 const char *section,
1066 if (endswith(rvalue, ".timer")) {
1067 log_error("[%s:%u] Unit cannot be of type timer: %s", filename, line, rvalue);
1071 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &t->unit)) < 0) {
1072 log_error("[%s:%u] Failed to load unit: %s", filename, line, rvalue);
1079 static int config_parse_path_spec(
1080 const char *filename,
1082 const char *section,
1097 if ((b = path_type_from_string(lvalue)) < 0) {
1098 log_error("[%s:%u] Failed to parse path type: %s", filename, line, lvalue);
1102 if (!path_is_absolute(rvalue)) {
1103 log_error("[%s:%u] Path is not absolute: %s", filename, line, rvalue);
1107 if (!(s = new0(PathSpec, 1)))
1110 if (!(s->path = strdup(rvalue))) {
1115 path_kill_slashes(s->path);
1120 LIST_PREPEND(PathSpec, spec, p->specs, s);
1125 static int config_parse_path_unit(
1126 const char *filename,
1128 const char *section,
1137 if (endswith(rvalue, ".path")) {
1138 log_error("[%s:%u] Unit cannot be of type path: %s", filename, line, rvalue);
1142 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &t->unit)) < 0) {
1143 log_error("[%s:%u] Failed to load unit: %s", filename, line, rvalue);
1150 static int config_parse_env_file(
1151 const char *filename,
1153 const char *section,
1168 if (!(f = fopen(rvalue, "re"))) {
1169 log_error("[%s:%u] Failed to open environment file '%s': %m", filename, line, rvalue);
1174 char l[LINE_MAX], *p;
1177 if (!fgets(l, sizeof(l), f)) {
1182 log_error("[%s:%u] Failed to read environment file '%s': %m", filename, line, rvalue);
1191 if (strchr(COMMENTS, *p))
1194 t = strv_env_set(*env, p);
1208 DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
1210 #define FOLLOW_MAX 8
1212 static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
1223 /* This will update the filename pointer if the loaded file is
1224 * reached by a symlink. The old string will be freed. */
1227 char *target, *name;
1229 if (c++ >= FOLLOW_MAX)
1232 path_kill_slashes(*filename);
1234 /* Add the file name we are currently looking at to
1235 * the names of this unit */
1236 name = file_name_from_path(*filename);
1237 if (!(id = set_get(names, name))) {
1239 if (!(id = strdup(name)))
1242 if ((r = set_put(names, id)) < 0) {
1248 /* Try to open the file name, but don't if its a symlink */
1249 if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
1255 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
1256 if ((r = readlink_and_make_absolute(*filename, &target)) < 0)
1263 if (!(f = fdopen(fd, "r"))) {
1265 close_nointr_nofail(fd);
1274 static int merge_by_names(Unit **u, Set *names, const char *id) {
1282 /* Let's try to add in all symlink names we found */
1283 while ((k = set_steal_first(names))) {
1285 /* First try to merge in the other name into our
1287 if ((r = unit_merge_by_name(*u, k)) < 0) {
1290 /* Hmm, we couldn't merge the other unit into
1291 * ours? Then let's try it the other way
1294 other = manager_get_unit((*u)->meta.manager, k);
1298 if ((r = unit_merge(other, *u)) >= 0) {
1300 return merge_by_names(u, names, NULL);
1307 unit_choose_id(*u, id);
1315 static void dump_items(FILE *f, const ConfigItem *items) {
1316 const ConfigItem *i;
1317 const char *prev_section = NULL;
1318 bool not_first = false;
1321 ConfigParserCallback callback;
1324 { config_parse_int, "INTEGER" },
1325 { config_parse_unsigned, "UNSIGNED" },
1326 { config_parse_size, "SIZE" },
1327 { config_parse_bool, "BOOLEAN" },
1328 { config_parse_string, "STRING" },
1329 { config_parse_path, "PATH" },
1330 { config_parse_strv, "STRING [...]" },
1331 { config_parse_nice, "NICE" },
1332 { config_parse_oom_adjust, "OOMADJUST" },
1333 { config_parse_io_class, "IOCLASS" },
1334 { config_parse_io_priority, "IOPRIORITY" },
1335 { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" },
1336 { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" },
1337 { config_parse_cpu_affinity, "CPUAFFINITY" },
1338 { config_parse_mode, "MODE" },
1339 { config_parse_env_file, "FILE" },
1340 { config_parse_output, "OUTPUT" },
1341 { config_parse_input, "INPUT" },
1342 { config_parse_facility, "FACILITY" },
1343 { config_parse_level, "LEVEL" },
1344 { config_parse_capabilities, "CAPABILITIES" },
1345 { config_parse_secure_bits, "SECUREBITS" },
1346 { config_parse_bounding_set, "BOUNDINGSET" },
1347 { config_parse_timer_slack_ns, "TIMERSLACK" },
1348 { config_parse_limit, "LIMIT" },
1349 { config_parse_cgroup, "CGROUP [...]" },
1350 { config_parse_deps, "UNIT [...]" },
1351 { config_parse_names, "UNIT [...]" },
1352 { config_parse_exec, "PATH [ARGUMENT [...]]" },
1353 { config_parse_service_type, "SERVICETYPE" },
1354 { config_parse_service_restart, "SERVICERESTART" },
1355 { config_parse_sysv_priority, "SYSVPRIORITY" },
1356 { config_parse_kill_mode, "KILLMODE" },
1357 { config_parse_listen, "SOCKET [...]" },
1358 { config_parse_socket_bind, "SOCKETBIND" },
1359 { config_parse_bindtodevice, "NETWORKINTERFACE" },
1360 { config_parse_usec, "SECONDS" },
1361 { config_parse_path_strv, "PATH [...]" },
1362 { config_parse_mount_flags, "MOUNTFLAG [...]" },
1363 { config_parse_string_printf, "STRING" },
1364 { config_parse_timer, "TIMER" },
1365 { config_parse_timer_unit, "NAME" },
1366 { config_parse_path_spec, "PATH" },
1367 { config_parse_path_unit, "UNIT" },
1368 { config_parse_notify_access, "ACCESS" }
1374 for (i = items; i->lvalue; i++) {
1376 const char *rvalue = "OTHER";
1378 if (!streq_ptr(i->section, prev_section)) {
1384 fprintf(f, "[%s]\n", i->section);
1385 prev_section = i->section;
1388 for (j = 0; j < ELEMENTSOF(table); j++)
1389 if (i->parse == table[j].callback) {
1390 rvalue = table[j].rvalue;
1394 fprintf(f, "%s=%s\n", i->lvalue, rvalue);
1398 static int load_from_path(Unit *u, const char *path) {
1400 static const char* const section_table[_UNIT_TYPE_MAX] = {
1401 [UNIT_SERVICE] = "Service",
1402 [UNIT_TIMER] = "Timer",
1403 [UNIT_SOCKET] = "Socket",
1404 [UNIT_TARGET] = "Target",
1405 [UNIT_DEVICE] = "Device",
1406 [UNIT_MOUNT] = "Mount",
1407 [UNIT_AUTOMOUNT] = "Automount",
1408 [UNIT_SNAPSHOT] = "Snapshot",
1409 [UNIT_SWAP] = "Swap",
1410 [UNIT_PATH] = "Path"
1413 #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
1414 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
1415 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
1416 { "User", config_parse_string_printf, &(context).user, section }, \
1417 { "Group", config_parse_string_printf, &(context).group, section }, \
1418 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
1419 { "Nice", config_parse_nice, &(context), section }, \
1420 { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \
1421 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
1422 { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \
1423 { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \
1424 { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \
1425 { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \
1426 { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \
1427 { "UMask", config_parse_mode, &(context).umask, section }, \
1428 { "Environment", config_parse_strv, &(context).environment, section }, \
1429 { "EnvironmentFile", config_parse_env_file, &(context).environment, section }, \
1430 { "StandardInput", config_parse_input, &(context).std_input, section }, \
1431 { "StandardOutput", config_parse_output, &(context).std_output, section }, \
1432 { "StandardError", config_parse_output, &(context).std_error, section }, \
1433 { "TTYPath", config_parse_path, &(context).tty_path, section }, \
1434 { "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \
1435 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
1436 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \
1437 { "SyslogNoPrefix", config_parse_bool, &(context).syslog_no_prefix, section }, \
1438 { "Capabilities", config_parse_capabilities, &(context), section }, \
1439 { "SecureBits", config_parse_secure_bits, &(context), section }, \
1440 { "CapabilityBoundingSetDrop", config_parse_bounding_set, &(context), section }, \
1441 { "TimerSlackNS", config_parse_timer_slack_ns, &(context), section }, \
1442 { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \
1443 { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \
1444 { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \
1445 { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \
1446 { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \
1447 { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \
1448 { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \
1449 { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \
1450 { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \
1451 { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \
1452 { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \
1453 { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \
1454 { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \
1455 { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \
1456 { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \
1457 { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \
1458 { "ControlGroup", config_parse_cgroup, u, section }, \
1459 { "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \
1460 { "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \
1461 { "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \
1462 { "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \
1463 { "MountFlags", config_parse_mount_flags, &(context), section }, \
1464 { "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \
1465 { "PAMName", config_parse_string_printf, &(context).pam_name, section }
1467 const ConfigItem items[] = {
1468 { "Names", config_parse_names, u, "Unit" },
1469 { "Description", config_parse_string_printf, &u->meta.description, "Unit" },
1470 { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Unit" },
1471 { "RequiresOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" },
1472 { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Unit" },
1473 { "RequisiteOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" },
1474 { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Unit" },
1475 { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" },
1476 { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Unit" },
1477 { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Unit" },
1478 { "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Unit" },
1479 { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" },
1480 { "OnlyByDependency", config_parse_bool, &u->meta.only_by_dependency, "Unit" },
1482 { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
1483 { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
1484 { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
1485 { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
1486 { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
1487 { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
1488 { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
1489 { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
1490 { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
1491 { "Type", config_parse_service_type, &u->service.type, "Service" },
1492 { "Restart", config_parse_service_restart, &u->service.restart, "Service" },
1493 { "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" },
1494 { "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" },
1495 { "ValidNoProcess", config_parse_bool, &u->service.valid_no_process, "Service" },
1496 { "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" },
1497 { "KillMode", config_parse_kill_mode, &u->service.kill_mode, "Service" },
1498 { "NonBlocking", config_parse_bool, &u->service.exec_context.non_blocking, "Service" },
1499 { "BusName", config_parse_string_printf, &u->service.bus_name, "Service" },
1500 { "NotifyAccess", config_parse_notify_access, &u->service.notify_access, "Service" },
1501 EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
1503 { "ListenStream", config_parse_listen, &u->socket, "Socket" },
1504 { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
1505 { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
1506 { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
1507 { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
1508 { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
1509 { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
1510 { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
1511 { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
1512 { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
1513 { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
1514 { "TimeoutSec", config_parse_usec, &u->socket.timeout_usec, "Socket" },
1515 { "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" },
1516 { "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" },
1517 { "KillMode", config_parse_kill_mode, &u->socket.kill_mode, "Socket" },
1518 { "Accept", config_parse_bool, &u->socket.accept, "Socket" },
1519 EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
1521 { "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" },
1522 { "Where", config_parse_path, &u->mount.where, "Mount" },
1523 { "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" },
1524 { "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" },
1525 { "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" },
1526 { "KillMode", config_parse_kill_mode, &u->mount.kill_mode, "Mount" },
1527 EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"),
1529 { "Where", config_parse_path, &u->automount.where, "Automount" },
1531 { "What", config_parse_path, &u->swap.parameters_fragment.what, "Swap" },
1532 { "Priority", config_parse_int, &u->swap.parameters_fragment.priority, "Swap" },
1534 { "OnActive", config_parse_timer, &u->timer, "Timer" },
1535 { "OnBoot", config_parse_timer, &u->timer, "Timer" },
1536 { "OnStartup", config_parse_timer, &u->timer, "Timer" },
1537 { "OnUnitActive", config_parse_timer, &u->timer, "Timer" },
1538 { "OnUnitInactive", config_parse_timer, &u->timer, "Timer" },
1539 { "Unit", config_parse_timer_unit, &u->timer, "Timer" },
1541 { "PathExists", config_parse_path_spec, &u->path, "Path" },
1542 { "PathChanged", config_parse_path_spec, &u->path, "Path" },
1543 { "DirectoryNotEmpty", config_parse_path_spec, &u->path, "Path" },
1544 { "Unit", config_parse_path_unit, &u->path, "Path" },
1546 /* The [Install] section is ignored here. */
1547 { "Alias", NULL, NULL, "Install" },
1548 { "WantedBy", NULL, NULL, "Install" },
1549 { "Also", NULL, NULL, "Install" },
1551 { NULL, NULL, NULL, NULL }
1554 #undef EXEC_CONTEXT_CONFIG_ITEMS
1556 const char *sections[4];
1560 char *filename = NULL, *id = NULL;
1564 /* Dirty dirty hack. */
1565 dump_items((FILE*) path, items);
1572 sections[0] = "Unit";
1573 sections[1] = section_table[u->meta.type];
1574 sections[2] = "Install";
1577 if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
1580 if (path_is_absolute(path)) {
1582 if (!(filename = strdup(path))) {
1587 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1598 STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) {
1600 /* Instead of opening the path right away, we manually
1601 * follow all symlinks and add their name to our unit
1602 * name set while doing so */
1603 if (!(filename = path_make_absolute(path, *p))) {
1608 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1617 /* Empty the symlink names for the next run */
1618 while ((sn = set_steal_first(symlink_names)))
1634 if ((r = merge_by_names(&merged, symlink_names, id)) < 0)
1638 u->meta.load_state = UNIT_MERGED;
1643 /* Now, parse the file contents */
1644 if ((r = config_parse(filename, f, sections, items, false, u)) < 0)
1647 free(u->meta.fragment_path);
1648 u->meta.fragment_path = filename;
1651 u->meta.load_state = UNIT_LOADED;
1655 set_free_free(symlink_names);
1664 int unit_load_fragment(Unit *u) {
1669 if (u->meta.fragment_path) {
1671 if ((r = load_from_path(u, u->meta.fragment_path)) < 0)
1678 /* Try to find the unit under its id */
1679 if ((r = load_from_path(u, u->meta.id)) < 0)
1682 /* Try to find an alias we can load this with */
1683 if (u->meta.load_state == UNIT_STUB)
1684 SET_FOREACH(t, u->meta.names, i) {
1686 if (t == u->meta.id)
1689 if ((r = load_from_path(u, t)) < 0)
1692 if (u->meta.load_state != UNIT_STUB)
1696 /* Now, follow the same logic, but look for a template */
1697 if (u->meta.load_state == UNIT_STUB && u->meta.instance) {
1700 if (!(k = unit_name_template(u->meta.id)))
1703 r = load_from_path(u, k);
1709 if (u->meta.load_state == UNIT_STUB)
1710 SET_FOREACH(t, u->meta.names, i) {
1712 if (t == u->meta.id)
1715 if (!(k = unit_name_template(t)))
1718 r = load_from_path(u, k);
1724 if (u->meta.load_state != UNIT_STUB)
1733 void unit_dump_config_items(FILE *f) {
1734 /* OK, this wins a prize for extreme ugliness. */
1736 load_from_path(NULL, (const void*) f);