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>
33 #include "conf-parser.h"
34 #include "load-fragment.h"
37 #include "securebits.h"
40 static int config_parse_deps(
49 UnitDependency d = PTR_TO_UINT(data);
59 FOREACH_WORD(w, l, rvalue, state) {
63 if (!(t = strndup(w, l)))
66 r = unit_add_dependency_by_name(u, d, t);
76 static int config_parse_names(
95 FOREACH_WORD(w, l, rvalue, state) {
99 if (!(t = strndup(w, l)))
102 r = unit_merge_by_name(u, t);
112 static int config_parse_listen(
113 const char *filename,
132 if (!(p = new0(SocketPort, 1)))
135 if (streq(lvalue, "ListenFIFO")) {
136 p->type = SOCKET_FIFO;
138 if (!(p->path = strdup(rvalue))) {
143 p->type = SOCKET_SOCKET;
145 if ((r = socket_address_parse(&p->address, rvalue)) < 0) {
146 log_error("[%s:%u] Failed to parse address value: %s", filename, line, rvalue);
151 if (streq(lvalue, "ListenStream"))
152 p->address.type = SOCK_STREAM;
153 else if (streq(lvalue, "ListenDatagram"))
154 p->address.type = SOCK_DGRAM;
156 assert(streq(lvalue, "ListenSequentialPacket"));
157 p->address.type = SOCK_SEQPACKET;
160 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
162 return -EPROTONOSUPPORT;
167 LIST_PREPEND(SocketPort, port, s->ports, p);
172 static int config_parse_socket_bind(
173 const char *filename,
191 if ((r = parse_boolean(rvalue)) < 0) {
192 log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename, line, rvalue);
196 s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
201 static int config_parse_nice(
202 const char *filename,
210 ExecContext *c = data;
218 if ((r = safe_atoi(rvalue, &priority)) < 0) {
219 log_error("[%s:%u] Failed to parse nice priority: %s", filename, line, rvalue);
223 if (priority < PRIO_MIN || priority >= PRIO_MAX) {
224 log_error("[%s:%u] Nice priority out of range: %s", filename, line, rvalue);
234 static int config_parse_oom_adjust(
235 const char *filename,
243 ExecContext *c = data;
251 if ((r = safe_atoi(rvalue, &oa)) < 0) {
252 log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename, line, rvalue);
256 if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) {
257 log_error("[%s:%u] OOM adjust value out of range: %s", filename, line, rvalue);
262 c->oom_adjust_set = true;
267 static int config_parse_mode(
268 const char *filename,
286 l = strtol(rvalue, &x, 8);
287 if (!x || *x || errno) {
288 log_error("[%s:%u] Failed to parse mode value: %s", filename, line, rvalue);
289 return errno ? -errno : -EINVAL;
292 if (l < 0000 || l > 07777) {
293 log_error("[%s:%u] mode value out of range: %s", filename, line, rvalue);
301 static int config_parse_exec(
302 const char *filename,
310 ExecCommand **e = data, *nce = NULL;
323 FOREACH_WORD_QUOTED(w, l, rvalue, state)
326 if (!(n = new(char*, k+1)))
330 FOREACH_WORD_QUOTED(w, l, rvalue, state)
331 if (!(n[k++] = strndup(w, l)))
336 if (!n[0] || !path_is_absolute(n[0])) {
337 log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue);
342 if (!(nce = new0(ExecCommand, 1)))
346 if (!(nce->path = strdup(n[0])))
349 exec_command_append_list(e, nce);
363 static int config_parse_usec(
364 const char *filename,
373 unsigned long long u;
381 if ((r = safe_atollu(rvalue, &u)) < 0) {
382 log_error("[%s:%u] Failed to parse time value: %s", filename, line, rvalue);
386 /* We actually assume the user configures seconds. Later on we
387 * might choose to support suffixes for time values, to
388 * configure bigger or smaller units */
390 *usec = u * USEC_PER_SEC;
395 static int config_parse_service_type(
396 const char *filename,
412 if ((x = service_type_from_string(rvalue)) < 0) {
413 log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue);
422 static int config_parse_service_restart(
423 const char *filename,
439 if ((x = service_restart_from_string(rvalue)) < 0) {
440 log_error("[%s:%u] Failed to parse service restart specifier: %s", filename, line, rvalue);
449 static int config_parse_bindtodevice(
450 const char *filename,
466 if (rvalue[0] && !streq(rvalue, "*")) {
467 if (!(n = strdup(rvalue)))
472 free(s->bind_to_device);
473 s->bind_to_device = n;
478 static int config_parse_output(
479 const char *filename,
487 ExecOutput *o = data, x;
494 if ((x = exec_output_from_string(rvalue)) < 0) {
495 log_error("[%s:%u] Failed to parse output specifier: %s", filename, line, rvalue);
504 static int config_parse_input(
505 const char *filename,
513 ExecInput *i = data, x;
520 if ((x = exec_input_from_string(rvalue)) < 0) {
521 log_error("[%s:%u] Failed to parse input specifier: %s", filename, line, rvalue);
530 static int config_parse_facility(
531 const char *filename,
547 if ((x = log_facility_from_string(rvalue)) < 0)
549 /* Second try, let's see if this is a number. */
550 if (safe_atoi(rvalue, &x) < 0 || !log_facility_to_string(x)) {
551 log_error("[%s:%u] Failed to parse log facility: %s", filename, line, rvalue);
555 *o = LOG_MAKEPRI(x, LOG_PRI(*o));
560 static int config_parse_level(
561 const char *filename,
577 if ((x = log_level_from_string(rvalue)) < 0)
579 /* Second try, let's see if this is a number. */
580 if (safe_atoi(rvalue, &x) < 0 || !log_level_to_string(x)) {
581 log_error("[%s:%u] Failed to parse log level: %s", filename, line, rvalue);
585 *o = LOG_MAKEPRI(LOG_FAC(*o), x);
589 static int config_parse_io_class(
590 const char *filename,
598 ExecContext *c = data;
606 if ((x = ioprio_class_from_string(rvalue)) < 0)
608 /* Second try, let's see if this is a number. */
609 if (safe_atoi(rvalue, &x) < 0 || !ioprio_class_to_string(x)) {
610 log_error("[%s:%u] Failed to parse IO scheduling class: %s", filename, line, rvalue);
614 c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
615 c->ioprio_set = true;
620 static int config_parse_io_priority(
621 const char *filename,
629 ExecContext *c = data;
637 if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {
638 log_error("[%s:%u] Failed to parse io priority: %s", filename, line, rvalue);
642 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
643 c->ioprio_set = true;
648 static int config_parse_cpu_sched_policy(
649 const char *filename,
658 ExecContext *c = data;
666 if ((x = sched_policy_from_string(rvalue)) < 0)
668 /* Second try, let's see if this is a number. */
669 if (safe_atoi(rvalue, &x) < 0 || !sched_policy_to_string(x)) {
670 log_error("[%s:%u] Failed to parse CPU scheduling policy: %s", filename, line, rvalue);
674 c->cpu_sched_policy = x;
675 c->cpu_sched_set = true;
680 static int config_parse_cpu_sched_prio(
681 const char *filename,
689 ExecContext *c = data;
697 /* On Linux RR/FIFO have the same range */
698 if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) {
699 log_error("[%s:%u] Failed to parse CPU scheduling priority: %s", filename, line, rvalue);
703 c->cpu_sched_priority = i;
704 c->cpu_sched_set = true;
709 static int config_parse_cpu_affinity(
710 const char *filename,
718 ExecContext *c = data;
728 FOREACH_WORD(w, l, rvalue, state) {
733 if (!(t = strndup(w, l)))
736 r = safe_atou(t, &cpu);
739 if (r < 0 || cpu >= CPU_SETSIZE) {
740 log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue);
744 CPU_SET(cpu, &c->cpu_affinity);
747 c->cpu_affinity_set = true;
752 static int config_parse_capabilities(
753 const char *filename,
761 ExecContext *c = data;
769 if (!(cap = cap_from_text(rvalue))) {
773 log_error("[%s:%u] Failed to parse capabilities: %s", filename, line, rvalue);
778 cap_free(c->capabilities);
779 c->capabilities = cap;
784 static int config_parse_secure_bits(
785 const char *filename,
793 ExecContext *c = data;
803 FOREACH_WORD(w, l, rvalue, state) {
804 if (first_word(w, "keep-caps"))
805 c->secure_bits |= SECURE_KEEP_CAPS;
806 else if (first_word(w, "keep-caps-locked"))
807 c->secure_bits |= SECURE_KEEP_CAPS_LOCKED;
808 else if (first_word(w, "no-setuid-fixup"))
809 c->secure_bits |= SECURE_NO_SETUID_FIXUP;
810 else if (first_word(w, "no-setuid-fixup-locked"))
811 c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED;
812 else if (first_word(w, "noroot"))
813 c->secure_bits |= SECURE_NOROOT;
814 else if (first_word(w, "noroot-locked"))
815 c->secure_bits |= SECURE_NOROOT_LOCKED;
817 log_error("[%s:%u] Failed to parse secure bits: %s", filename, line, rvalue);
825 static int config_parse_bounding_set(
826 const char *filename,
834 ExecContext *c = data;
844 FOREACH_WORD(w, l, rvalue, state) {
849 if (!(t = strndup(w, l)))
852 r = cap_from_name(t, &cap);
856 log_error("[%s:%u] Failed to parse capability bounding set: %s", filename, line, rvalue);
860 c->capability_bounding_set_drop |= 1 << cap;
866 static int config_parse_timer_slack_ns(
867 const char *filename,
875 ExecContext *c = data;
884 if ((r = safe_atolu(rvalue, &u)) < 0) {
885 log_error("[%s:%u] Failed to parse time slack value: %s", filename, line, rvalue);
889 c->timer_slack_ns = u;
894 static int config_parse_limit(
895 const char *filename,
903 struct rlimit **rl = data;
904 unsigned long long u;
912 if ((r = safe_atollu(rvalue, &u)) < 0) {
913 log_error("[%s:%u] Failed to parse resource value: %s", filename, line, rvalue);
918 if (!(*rl = new(struct rlimit, 1)))
921 (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;
925 static int config_parse_cgroup(
926 const char *filename,
939 FOREACH_WORD(w, l, rvalue, state) {
943 if (!(t = strndup(w, l)))
946 r = unit_add_cgroup_from_text(u, t);
956 static int config_parse_sysv_priority(
957 const char *filename,
965 int *priority = data;
973 if ((r = safe_atoi(rvalue, &i)) < 0 || i < 0) {
974 log_error("[%s:%u] Failed to parse SysV start priority: %s", filename, line, rvalue);
982 static int config_parse_kill_mode(
983 const char *filename,
991 KillMode *m = data, x;
998 if ((x = kill_mode_from_string(rvalue)) < 0) {
999 log_error("[%s:%u] Failed to parse kill mode specifier: %s", filename, line, rvalue);
1008 #define FOLLOW_MAX 8
1010 static int open_follow(char **filename, FILE **_f, Set *names, char **_id) {
1021 /* This will update the filename pointer if the loaded file is
1022 * reached by a symlink. The old string will be freed. */
1025 char *target, *k, *name;
1027 if (c++ >= FOLLOW_MAX)
1030 path_kill_slashes(*filename);
1032 /* Add the file name we are currently looking at to
1033 * the names of this unit */
1034 name = file_name_from_path(*filename);
1035 if (!(id = set_get(names, name))) {
1037 if (!(id = strdup(name)))
1040 if ((r = set_put(names, id)) < 0) {
1046 /* Try to open the file name, but don't if its a symlink */
1047 if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
1053 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
1054 if ((r = readlink_malloc(*filename, &target)) < 0)
1057 k = file_in_same_dir(*filename, target);
1067 if (!(f = fdopen(fd, "r"))) {
1069 assert(close_nointr(fd) == 0);
1078 static int merge_by_names(Unit **u, Set *names, const char *id) {
1086 /* Let's try to add in all symlink names we found */
1087 while ((k = set_steal_first(names))) {
1089 /* First try to merge in the other name into our
1091 if ((r = unit_merge_by_name(*u, k)) < 0) {
1094 /* Hmm, we couldn't merge the other unit into
1095 * ours? Then let's try it the other way
1098 other = manager_get_unit((*u)->meta.manager, k);
1102 if ((r = unit_merge(other, *u)) >= 0) {
1104 return merge_by_names(u, names, NULL);
1111 unit_choose_id(*u, id);
1119 static int load_from_path(Unit *u, const char *path, UnitLoadState *new_state) {
1121 static const char* const section_table[_UNIT_TYPE_MAX] = {
1122 [UNIT_SERVICE] = "Service",
1123 [UNIT_TIMER] = "Timer",
1124 [UNIT_SOCKET] = "Socket",
1125 [UNIT_TARGET] = "Target",
1126 [UNIT_DEVICE] = "Device",
1127 [UNIT_MOUNT] = "Mount",
1128 [UNIT_AUTOMOUNT] = "Automount",
1129 [UNIT_SNAPSHOT] = "Snapshot"
1132 #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
1133 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
1134 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
1135 { "User", config_parse_string, &(context).user, section }, \
1136 { "Group", config_parse_string, &(context).group, section }, \
1137 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
1138 { "Nice", config_parse_nice, &(context), section }, \
1139 { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \
1140 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
1141 { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \
1142 { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \
1143 { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \
1144 { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \
1145 { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \
1146 { "UMask", config_parse_mode, &(context).umask, section }, \
1147 { "Environment", config_parse_strv, &(context).environment, section }, \
1148 { "Output", config_parse_output, &(context).output, section }, \
1149 { "Input", config_parse_input, &(context).input, section }, \
1150 { "SyslogIdentifier", config_parse_string, &(context).syslog_identifier, section }, \
1151 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
1152 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \
1153 { "Capabilities", config_parse_capabilities, &(context), section }, \
1154 { "SecureBits", config_parse_secure_bits, &(context), section }, \
1155 { "CapabilityBoundingSetDrop", config_parse_bounding_set, &(context), section }, \
1156 { "TimerSlackNS", config_parse_timer_slack_ns, &(context), section }, \
1157 { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \
1158 { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \
1159 { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \
1160 { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \
1161 { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \
1162 { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \
1163 { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \
1164 { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \
1165 { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \
1166 { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \
1167 { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \
1168 { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \
1169 { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \
1170 { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \
1171 { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \
1172 { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \
1173 { "NonBlocking", config_parse_bool, &(context).non_blocking, section }, \
1174 { "ControlGroup", config_parse_cgroup, u, section }, \
1175 { "NewSession", config_parse_bool, &(context).new_session, section }
1177 const ConfigItem items[] = {
1178 { "Names", config_parse_names, u, "Meta" },
1179 { "Description", config_parse_string, &u->meta.description, "Meta" },
1180 { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Meta" },
1181 { "SoftRequires", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUIRES), "Meta" },
1182 { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Meta" },
1183 { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Meta" },
1184 { "SoftRequisite", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUISITE), "Meta" },
1185 { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Meta" },
1186 { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Meta" },
1187 { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Meta" },
1188 { "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Meta" },
1189 { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Meta" },
1191 { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
1192 { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
1193 { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
1194 { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
1195 { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
1196 { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
1197 { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
1198 { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
1199 { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
1200 { "Type", config_parse_service_type, &u->service, "Service" },
1201 { "Restart", config_parse_service_restart, &u->service, "Service" },
1202 { "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" },
1203 { "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" },
1204 { "ValidNoProcess", config_parse_bool, &u->service.valid_no_process, "Service" },
1205 { "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" },
1206 { "KillMode", config_parse_kill_mode, &u->service.kill_mode, "Service" },
1207 EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
1209 { "ListenStream", config_parse_listen, &u->socket, "Socket" },
1210 { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
1211 { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
1212 { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
1213 { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
1214 { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
1215 { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
1216 { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
1217 { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
1218 { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
1219 { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
1220 { "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" },
1221 { "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" },
1222 { "KillMode", config_parse_kill_mode, &u->socket.kill_mode, "Socket" },
1223 EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
1225 EXEC_CONTEXT_CONFIG_ITEMS(u->automount.exec_context, "Automount"),
1227 { NULL, NULL, NULL, NULL }
1230 #undef EXEC_CONTEXT_CONFIG_ITEMS
1232 const char *sections[3];
1237 char *filename = NULL, *id = NULL;
1243 sections[0] = "Meta";
1244 sections[1] = section_table[u->meta.type];
1247 if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
1250 if (path_is_absolute(path)) {
1252 if (!(filename = strdup(path))) {
1257 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1268 STRV_FOREACH(p, u->meta.manager->unit_path) {
1270 /* Instead of opening the path right away, we manually
1271 * follow all symlinks and add their name to our unit
1272 * name set while doing so */
1273 if (!(filename = path_make_absolute(path, *p))) {
1278 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1287 /* Empty the symlink names for the next run */
1288 while ((sn = set_steal_first(symlink_names)))
1304 if ((r = merge_by_names(&merged, symlink_names, id)) < 0)
1308 *new_state = UNIT_MERGED;
1313 /* Now, parse the file contents */
1314 if ((r = config_parse(filename, f, sections, items, u)) < 0)
1317 free(u->meta.fragment_path);
1318 u->meta.fragment_path = filename;
1321 *new_state = UNIT_LOADED;
1325 while ((k = set_steal_first(symlink_names)))
1328 set_free(symlink_names);
1337 int unit_load_fragment(Unit *u, UnitLoadState *new_state) {
1342 assert(*new_state == UNIT_STUB);
1344 if (u->meta.fragment_path) {
1346 if ((r = load_from_path(u, u->meta.fragment_path, new_state)) < 0)
1353 /* Try to find the unit under its id */
1354 if ((t = unit_id(u)))
1355 if ((r = load_from_path(u, t, new_state)) < 0)
1358 /* Try to find an alias we can load this with */
1359 if (*new_state == UNIT_STUB)
1360 SET_FOREACH(t, u->meta.names, i) {
1362 if (unit_id(u) == t)
1365 if ((r = load_from_path(u, t, new_state)) < 0)
1368 if (*new_state != UNIT_STUB)