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
,
205 if (!(p
= new0(SocketPort
, 1)))
208 if (streq(lvalue
, "ListenFIFO")) {
209 p
->type
= SOCKET_FIFO
;
211 if (!(p
->path
= strdup(rvalue
))) {
216 path_kill_slashes(p
->path
);
218 p
->type
= SOCKET_SOCKET
;
220 if ((r
= socket_address_parse(&p
->address
, rvalue
)) < 0) {
221 log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename
, line
, rvalue
);
226 if (streq(lvalue
, "ListenStream"))
227 p
->address
.type
= SOCK_STREAM
;
228 else if (streq(lvalue
, "ListenDatagram"))
229 p
->address
.type
= SOCK_DGRAM
;
231 assert(streq(lvalue
, "ListenSequentialPacket"));
232 p
->address
.type
= SOCK_SEQPACKET
;
235 if (socket_address_family(&p
->address
) != AF_LOCAL
&& p
->address
.type
== SOCK_SEQPACKET
) {
236 log_error("[%s:%u] Address family not supported, ignoring: %s", filename
, line
, rvalue
);
243 LIST_PREPEND(SocketPort
, port
, s
->ports
, p
);
248 static int config_parse_socket_bind(
249 const char *filename
,
258 SocketAddressBindIPv6Only b
;
267 if ((b
= socket_address_bind_ipv6_only_from_string(rvalue
)) < 0) {
270 if ((r
= parse_boolean(rvalue
)) < 0) {
271 log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename
, line
, rvalue
);
275 s
->bind_ipv6_only
= r
? SOCKET_ADDRESS_IPV6_ONLY
: SOCKET_ADDRESS_BOTH
;
277 s
->bind_ipv6_only
= b
;
282 static int config_parse_nice(
283 const char *filename
,
291 ExecContext
*c
= data
;
299 if ((r
= safe_atoi(rvalue
, &priority
)) < 0) {
300 log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename
, line
, rvalue
);
304 if (priority
< PRIO_MIN
|| priority
>= PRIO_MAX
) {
305 log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename
, line
, rvalue
);
315 static int config_parse_oom_score_adjust(
316 const char *filename
,
324 ExecContext
*c
= data
;
332 if ((r
= safe_atoi(rvalue
, &oa
)) < 0) {
333 log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename
, line
, rvalue
);
337 if (oa
< OOM_SCORE_ADJ_MIN
|| oa
> OOM_SCORE_ADJ_MAX
) {
338 log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename
, line
, rvalue
);
342 c
->oom_score_adjust
= oa
;
343 c
->oom_score_adjust_set
= true;
348 static int config_parse_mode(
349 const char *filename
,
367 l
= strtol(rvalue
, &x
, 8);
368 if (!x
|| *x
|| errno
) {
369 log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename
, line
, rvalue
);
373 if (l
< 0000 || l
> 07777) {
374 log_error("[%s:%u] mode value out of range, ignoring: %s", filename
, line
, rvalue
);
382 static int config_parse_exec(
383 const char *filename
,
391 ExecCommand
**e
= data
, *nce
;
400 /* We accept an absolute path as first argument, or
401 * alternatively an absolute prefixed with @ to allow
402 * overriding of argv[0]. */
408 bool honour_argv0
= false, ignore
= false;
414 rvalue
+= strspn(rvalue
, WHITESPACE
);
419 if (rvalue
[0] == '-') {
424 if (rvalue
[0] == '@') {
429 if (*rvalue
!= '/') {
430 log_error("[%s:%u] Invalid executable path in command line, ignoring: %s", filename
, line
, rvalue
);
435 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
436 if (strncmp(w
, ";", l
) == 0)
442 if (!(n
= new(char*, k
+ !honour_argv0
)))
446 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
447 if (strncmp(w
, ";", l
) == 0)
450 if (honour_argv0
&& w
== rvalue
) {
452 if (!(path
= cunescape_length(w
, l
)))
455 if (!(n
[k
++] = cunescape_length(w
, l
)))
463 log_error("[%s:%u] Invalid command line, ignoring: %s", filename
, line
, rvalue
);
469 if (!(path
= strdup(n
[0])))
472 assert(path_is_absolute(path
));
474 if (!(nce
= new0(ExecCommand
, 1)))
479 nce
->ignore
= ignore
;
481 path_kill_slashes(nce
->path
);
483 exec_command_append_list(e
, nce
);
499 static int config_parse_usec(
500 const char *filename
,
516 if ((r
= parse_usec(rvalue
, usec
)) < 0) {
517 log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename
, line
, rvalue
);
524 static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type
, service_type
, ServiceType
, "Failed to parse service type");
525 static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart
, service_restart
, ServiceRestart
, "Failed to parse service restart specifier");
527 static int config_parse_bindtodevice(
528 const char *filename
,
544 if (rvalue
[0] && !streq(rvalue
, "*")) {
545 if (!(n
= strdup(rvalue
)))
550 free(s
->bind_to_device
);
551 s
->bind_to_device
= n
;
556 static DEFINE_CONFIG_PARSE_ENUM(config_parse_output
, exec_output
, ExecOutput
, "Failed to parse output specifier");
557 static DEFINE_CONFIG_PARSE_ENUM(config_parse_input
, exec_input
, ExecInput
, "Failed to parse input specifier");
559 static int config_parse_facility(
560 const char *filename
,
576 if ((x
= log_facility_from_string(rvalue
)) < 0) {
577 log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename
, line
, rvalue
);
581 *o
= LOG_MAKEPRI(x
, LOG_PRI(*o
));
586 static int config_parse_level(
587 const char *filename
,
603 if ((x
= log_level_from_string(rvalue
)) < 0) {
604 log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename
, line
, rvalue
);
608 *o
= LOG_MAKEPRI(LOG_FAC(*o
), x
);
612 static int config_parse_io_class(
613 const char *filename
,
621 ExecContext
*c
= data
;
629 if ((x
= ioprio_class_from_string(rvalue
)) < 0) {
630 log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename
, line
, rvalue
);
634 c
->ioprio
= IOPRIO_PRIO_VALUE(x
, IOPRIO_PRIO_DATA(c
->ioprio
));
635 c
->ioprio_set
= true;
640 static int config_parse_io_priority(
641 const char *filename
,
649 ExecContext
*c
= data
;
657 if (safe_atoi(rvalue
, &i
) < 0 || i
< 0 || i
>= IOPRIO_BE_NR
) {
658 log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename
, line
, rvalue
);
662 c
->ioprio
= IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c
->ioprio
), i
);
663 c
->ioprio_set
= true;
668 static int config_parse_cpu_sched_policy(
669 const char *filename
,
678 ExecContext
*c
= data
;
686 if ((x
= sched_policy_from_string(rvalue
)) < 0) {
687 log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename
, line
, rvalue
);
691 c
->cpu_sched_policy
= x
;
692 c
->cpu_sched_set
= true;
697 static int config_parse_cpu_sched_prio(
698 const char *filename
,
706 ExecContext
*c
= data
;
714 /* On Linux RR/FIFO have the same range */
715 if (safe_atoi(rvalue
, &i
) < 0 || i
< sched_get_priority_min(SCHED_RR
) || i
> sched_get_priority_max(SCHED_RR
)) {
716 log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename
, line
, rvalue
);
720 c
->cpu_sched_priority
= i
;
721 c
->cpu_sched_set
= true;
726 static int config_parse_cpu_affinity(
727 const char *filename
,
735 ExecContext
*c
= data
;
745 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
750 if (!(t
= strndup(w
, l
)))
753 r
= safe_atou(t
, &cpu
);
757 if (!(c
->cpuset
= cpu_set_malloc(&c
->cpuset_ncpus
)))
760 if (r
< 0 || cpu
>= c
->cpuset_ncpus
) {
761 log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename
, line
, rvalue
);
765 CPU_SET_S(cpu
, CPU_ALLOC_SIZE(c
->cpuset_ncpus
), c
->cpuset
);
771 static int config_parse_capabilities(
772 const char *filename
,
780 ExecContext
*c
= data
;
788 if (!(cap
= cap_from_text(rvalue
))) {
792 log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename
, line
, rvalue
);
797 cap_free(c
->capabilities
);
798 c
->capabilities
= cap
;
803 static int config_parse_secure_bits(
804 const char *filename
,
812 ExecContext
*c
= data
;
822 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
823 if (first_word(w
, "keep-caps"))
824 c
->secure_bits
|= SECURE_KEEP_CAPS
;
825 else if (first_word(w
, "keep-caps-locked"))
826 c
->secure_bits
|= SECURE_KEEP_CAPS_LOCKED
;
827 else if (first_word(w
, "no-setuid-fixup"))
828 c
->secure_bits
|= SECURE_NO_SETUID_FIXUP
;
829 else if (first_word(w
, "no-setuid-fixup-locked"))
830 c
->secure_bits
|= SECURE_NO_SETUID_FIXUP_LOCKED
;
831 else if (first_word(w
, "noroot"))
832 c
->secure_bits
|= SECURE_NOROOT
;
833 else if (first_word(w
, "noroot-locked"))
834 c
->secure_bits
|= SECURE_NOROOT_LOCKED
;
836 log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename
, line
, rvalue
);
844 static int config_parse_bounding_set(
845 const char *filename
,
853 ExecContext
*c
= data
;
863 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
868 if (!(t
= strndup(w
, l
)))
871 r
= cap_from_name(t
, &cap
);
875 log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename
, line
, rvalue
);
879 c
->capability_bounding_set_drop
|= 1 << cap
;
885 static int config_parse_timer_slack_nsec(
886 const char *filename
,
894 ExecContext
*c
= data
;
903 if ((r
= safe_atolu(rvalue
, &u
)) < 0) {
904 log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename
, line
, rvalue
);
908 c
->timer_slack_nsec
= u
;
913 static int config_parse_limit(
914 const char *filename
,
922 struct rlimit
**rl
= data
;
923 unsigned long long u
;
931 if ((r
= safe_atollu(rvalue
, &u
)) < 0) {
932 log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename
, line
, rvalue
);
937 if (!(*rl
= new(struct rlimit
, 1)))
940 (*rl
)->rlim_cur
= (*rl
)->rlim_max
= (rlim_t
) u
;
944 static int config_parse_cgroup(
945 const char *filename
,
958 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
962 if (!(t
= cunescape_length(w
, l
)))
965 r
= unit_add_cgroup_from_text(u
, t
);
969 log_error("[%s:%u] Failed to parse cgroup value, ignoring: %s", filename
, line
, rvalue
);
977 #ifdef HAVE_SYSV_COMPAT
978 static int config_parse_sysv_priority(
979 const char *filename
,
987 int *priority
= data
;
995 if ((r
= safe_atoi(rvalue
, &i
)) < 0 || i
< 0) {
996 log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename
, line
, rvalue
);
1000 *priority
= (int) i
;
1005 static DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode
, kill_mode
, KillMode
, "Failed to parse kill mode");
1007 static int config_parse_kill_signal(
1008 const char *filename
,
1010 const char *section
,
1024 if ((r
= signal_from_string(rvalue
)) <= 0)
1025 if (startswith(rvalue
, "SIG"))
1026 r
= signal_from_string(rvalue
+3);
1029 log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename
, line
, rvalue
);
1037 static int config_parse_mount_flags(
1038 const char *filename
,
1040 const char *section
,
1046 ExecContext
*c
= data
;
1050 unsigned long flags
= 0;
1057 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
1058 if (strncmp(w
, "shared", l
) == 0)
1060 else if (strncmp(w
, "slave", l
) == 0)
1062 else if (strncmp(w
, "private", l
) == 0)
1063 flags
|= MS_PRIVATE
;
1065 log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename
, line
, rvalue
);
1070 c
->mount_flags
= flags
;
1074 static int config_parse_timer(
1075 const char *filename
,
1077 const char *section
,
1094 if ((b
= timer_base_from_string(lvalue
)) < 0) {
1095 log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename
, line
, lvalue
);
1099 if ((r
= parse_usec(rvalue
, &u
)) < 0) {
1100 log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename
, line
, rvalue
);
1104 if (!(v
= new0(TimerValue
, 1)))
1110 LIST_PREPEND(TimerValue
, value
, t
->values
, v
);
1115 static int config_parse_timer_unit(
1116 const char *filename
,
1118 const char *section
,
1133 dbus_error_init(&error
);
1135 if (endswith(rvalue
, ".timer")) {
1136 log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename
, line
, rvalue
);
1140 if ((r
= manager_load_unit(t
->meta
.manager
, rvalue
, NULL
, NULL
, &t
->unit
)) < 0) {
1141 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename
, line
, rvalue
, bus_error(&error
, r
));
1142 dbus_error_free(&error
);
1149 static int config_parse_path_spec(
1150 const char *filename
,
1152 const char *section
,
1167 if ((b
= path_type_from_string(lvalue
)) < 0) {
1168 log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename
, line
, lvalue
);
1172 if (!path_is_absolute(rvalue
)) {
1173 log_error("[%s:%u] Path is not absolute, ignoring: %s", filename
, line
, rvalue
);
1177 if (!(s
= new0(PathSpec
, 1)))
1180 if (!(s
->path
= strdup(rvalue
))) {
1185 path_kill_slashes(s
->path
);
1190 LIST_PREPEND(PathSpec
, spec
, p
->specs
, s
);
1195 static int config_parse_path_unit(
1196 const char *filename
,
1198 const char *section
,
1213 dbus_error_init(&error
);
1215 if (endswith(rvalue
, ".path")) {
1216 log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename
, line
, rvalue
);
1220 if ((r
= manager_load_unit(t
->meta
.manager
, rvalue
, NULL
, &error
, &t
->unit
)) < 0) {
1221 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename
, line
, rvalue
, bus_error(&error
, r
));
1222 dbus_error_free(&error
);
1229 static int config_parse_socket_service(
1230 const char *filename
,
1232 const char *section
,
1247 dbus_error_init(&error
);
1249 if (!endswith(rvalue
, ".service")) {
1250 log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename
, line
, rvalue
);
1254 if ((r
= manager_load_unit(s
->meta
.manager
, rvalue
, NULL
, &error
, (Unit
**) &s
->service
)) < 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_service_sockets(
1264 const char *filename
,
1266 const char *section
,
1283 dbus_error_init(&error
);
1285 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
1289 if (!(t
= strndup(w
, l
)))
1292 if (!endswith(t
, ".socket")) {
1293 log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename
, line
, rvalue
);
1298 r
= manager_load_unit(s
->meta
.manager
, t
, NULL
, &error
, &sock
);
1302 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename
, line
, rvalue
, bus_error(&error
, r
));
1303 dbus_error_free(&error
);
1307 if ((r
= set_ensure_allocated(&s
->configured_sockets
, trivial_hash_func
, trivial_compare_func
)) < 0)
1310 if ((r
= set_put(s
->configured_sockets
, sock
)) < 0)
1317 static int config_parse_env_file(
1318 const char *filename
,
1320 const char *section
,
1335 if (!(f
= fopen(rvalue
, "re"))) {
1336 log_error("[%s:%u] Failed to open environment file '%s', ignoring: %m", filename
, line
, rvalue
);
1341 char l
[LINE_MAX
], *p
;
1344 if (!fgets(l
, sizeof(l
), f
)) {
1349 log_error("[%s:%u] Failed to read environment file '%s', ignoring: %m", filename
, line
, rvalue
);
1359 if (strchr(COMMENTS
, *p
))
1362 t
= strv_env_set(*env
, p
);
1376 static int config_parse_ip_tos(
1377 const char *filename
,
1379 const char *section
,
1385 int *ip_tos
= data
, x
;
1393 if ((x
= ip_tos_from_string(rvalue
)) < 0)
1394 if ((r
= safe_atoi(rvalue
, &x
)) < 0) {
1395 log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename
, line
, rvalue
);
1403 static int config_parse_condition_path(
1404 const char *filename
,
1406 const char *section
,
1421 if ((negate
= rvalue
[0] == '!'))
1424 if (!path_is_absolute(rvalue
)) {
1425 log_error("[%s:%u] Path in condition not absolute: %s", filename
, line
, rvalue
);
1429 if (!(c
= condition_new(CONDITION_PATH_EXISTS
, rvalue
, negate
)))
1432 LIST_PREPEND(Condition
, conditions
, u
->meta
.conditions
, c
);
1436 static int config_parse_condition_kernel(
1437 const char *filename
,
1439 const char *section
,
1454 if ((negate
= rvalue
[0] == '!'))
1457 if (!(c
= condition_new(CONDITION_KERNEL_COMMAND_LINE
, rvalue
, negate
)))
1460 LIST_PREPEND(Condition
, conditions
, u
->meta
.conditions
, c
);
1464 static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access
, notify_access
, NotifyAccess
, "Failed to parse notify access specifier");
1466 #define FOLLOW_MAX 8
1468 static int open_follow(char **filename
, FILE **_f
, Set
*names
, char **_final
) {
1479 /* This will update the filename pointer if the loaded file is
1480 * reached by a symlink. The old string will be freed. */
1483 char *target
, *name
;
1485 if (c
++ >= FOLLOW_MAX
)
1488 path_kill_slashes(*filename
);
1490 /* Add the file name we are currently looking at to
1491 * the names of this unit, but only if it is a valid
1493 name
= file_name_from_path(*filename
);
1495 if (unit_name_is_valid(name
, false)) {
1496 if (!(id
= set_get(names
, name
))) {
1498 if (!(id
= strdup(name
)))
1501 if ((r
= set_put(names
, id
)) < 0) {
1508 /* Try to open the file name, but don't if its a symlink */
1509 if ((fd
= open(*filename
, O_RDONLY
|O_CLOEXEC
|O_NOCTTY
|O_NOFOLLOW
)) >= 0)
1515 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
1516 if ((r
= readlink_and_make_absolute(*filename
, &target
)) < 0)
1523 if (!(f
= fdopen(fd
, "re"))) {
1525 close_nointr_nofail(fd
);
1534 static int merge_by_names(Unit
**u
, Set
*names
, const char *id
) {
1542 /* Let's try to add in all symlink names we found */
1543 while ((k
= set_steal_first(names
))) {
1545 /* First try to merge in the other name into our
1547 if ((r
= unit_merge_by_name(*u
, k
)) < 0) {
1550 /* Hmm, we couldn't merge the other unit into
1551 * ours? Then let's try it the other way
1554 other
= manager_get_unit((*u
)->meta
.manager
, k
);
1558 if ((r
= unit_merge(other
, *u
)) >= 0) {
1560 return merge_by_names(u
, names
, NULL
);
1567 unit_choose_id(*u
, id
);
1575 static void dump_items(FILE *f
, const ConfigItem
*items
) {
1576 const ConfigItem
*i
;
1577 const char *prev_section
= NULL
;
1578 bool not_first
= false;
1581 ConfigParserCallback callback
;
1584 { config_parse_int
, "INTEGER" },
1585 { config_parse_unsigned
, "UNSIGNED" },
1586 { config_parse_size
, "SIZE" },
1587 { config_parse_bool
, "BOOLEAN" },
1588 { config_parse_string
, "STRING" },
1589 { config_parse_path
, "PATH" },
1590 { config_parse_strv
, "STRING [...]" },
1591 { config_parse_nice
, "NICE" },
1592 { config_parse_oom_score_adjust
, "OOMSCOREADJUST" },
1593 { config_parse_io_class
, "IOCLASS" },
1594 { config_parse_io_priority
, "IOPRIORITY" },
1595 { config_parse_cpu_sched_policy
, "CPUSCHEDPOLICY" },
1596 { config_parse_cpu_sched_prio
, "CPUSCHEDPRIO" },
1597 { config_parse_cpu_affinity
, "CPUAFFINITY" },
1598 { config_parse_mode
, "MODE" },
1599 { config_parse_env_file
, "FILE" },
1600 { config_parse_output
, "OUTPUT" },
1601 { config_parse_input
, "INPUT" },
1602 { config_parse_facility
, "FACILITY" },
1603 { config_parse_level
, "LEVEL" },
1604 { config_parse_capabilities
, "CAPABILITIES" },
1605 { config_parse_secure_bits
, "SECUREBITS" },
1606 { config_parse_bounding_set
, "BOUNDINGSET" },
1607 { config_parse_timer_slack_nsec
, "TIMERSLACK" },
1608 { config_parse_limit
, "LIMIT" },
1609 { config_parse_cgroup
, "CGROUP [...]" },
1610 { config_parse_deps
, "UNIT [...]" },
1611 { config_parse_names
, "UNIT [...]" },
1612 { config_parse_exec
, "PATH [ARGUMENT [...]]" },
1613 { config_parse_service_type
, "SERVICETYPE" },
1614 { config_parse_service_restart
, "SERVICERESTART" },
1615 #ifdef HAVE_SYSV_COMPAT
1616 { config_parse_sysv_priority
, "SYSVPRIORITY" },
1618 { config_parse_warn_compat
, "NOTSUPPORTED" },
1620 { config_parse_kill_mode
, "KILLMODE" },
1621 { config_parse_kill_signal
, "SIGNAL" },
1622 { config_parse_listen
, "SOCKET [...]" },
1623 { config_parse_socket_bind
, "SOCKETBIND" },
1624 { config_parse_bindtodevice
, "NETWORKINTERFACE" },
1625 { config_parse_usec
, "SECONDS" },
1626 { config_parse_path_strv
, "PATH [...]" },
1627 { config_parse_mount_flags
, "MOUNTFLAG [...]" },
1628 { config_parse_string_printf
, "STRING" },
1629 { config_parse_timer
, "TIMER" },
1630 { config_parse_timer_unit
, "NAME" },
1631 { config_parse_path_spec
, "PATH" },
1632 { config_parse_path_unit
, "UNIT" },
1633 { config_parse_notify_access
, "ACCESS" },
1634 { config_parse_ip_tos
, "TOS" },
1635 { config_parse_condition_path
, "CONDITION" },
1636 { config_parse_condition_kernel
, "CONDITION" },
1642 for (i
= items
; i
->lvalue
; i
++) {
1644 const char *rvalue
= "OTHER";
1646 if (!streq_ptr(i
->section
, prev_section
)) {
1652 fprintf(f
, "[%s]\n", i
->section
);
1653 prev_section
= i
->section
;
1656 for (j
= 0; j
< ELEMENTSOF(table
); j
++)
1657 if (i
->parse
== table
[j
].callback
) {
1658 rvalue
= table
[j
].rvalue
;
1662 fprintf(f
, "%s=%s\n", i
->lvalue
, rvalue
);
1666 static int load_from_path(Unit
*u
, const char *path
) {
1668 static const char* const section_table
[_UNIT_TYPE_MAX
] = {
1669 [UNIT_SERVICE
] = "Service",
1670 [UNIT_TIMER
] = "Timer",
1671 [UNIT_SOCKET
] = "Socket",
1672 [UNIT_TARGET
] = "Target",
1673 [UNIT_DEVICE
] = "Device",
1674 [UNIT_MOUNT
] = "Mount",
1675 [UNIT_AUTOMOUNT
] = "Automount",
1676 [UNIT_SNAPSHOT
] = "Snapshot",
1677 [UNIT_SWAP
] = "Swap",
1678 [UNIT_PATH
] = "Path"
1681 #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
1682 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
1683 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
1684 { "User", config_parse_string_printf, &(context).user, section }, \
1685 { "Group", config_parse_string_printf, &(context).group, section }, \
1686 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
1687 { "Nice", config_parse_nice, &(context), section }, \
1688 { "OOMScoreAdjust", config_parse_oom_score_adjust,&(context), section }, \
1689 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
1690 { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \
1691 { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \
1692 { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \
1693 { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \
1694 { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \
1695 { "UMask", config_parse_mode, &(context).umask, section }, \
1696 { "Environment", config_parse_strv, &(context).environment, section }, \
1697 { "EnvironmentFile", config_parse_env_file, &(context).environment, section }, \
1698 { "StandardInput", config_parse_input, &(context).std_input, section }, \
1699 { "StandardOutput", config_parse_output, &(context).std_output, section }, \
1700 { "StandardError", config_parse_output, &(context).std_error, section }, \
1701 { "TTYPath", config_parse_path, &(context).tty_path, section }, \
1702 { "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \
1703 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
1704 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \
1705 { "SyslogLevelPrefix", config_parse_bool, &(context).syslog_level_prefix, section }, \
1706 { "Capabilities", config_parse_capabilities, &(context), section }, \
1707 { "SecureBits", config_parse_secure_bits, &(context), section }, \
1708 { "CapabilityBoundingSetDrop", config_parse_bounding_set, &(context), section }, \
1709 { "TimerSlackNSec", config_parse_timer_slack_nsec,&(context), section }, \
1710 { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \
1711 { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \
1712 { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \
1713 { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \
1714 { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \
1715 { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \
1716 { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \
1717 { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \
1718 { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \
1719 { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \
1720 { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \
1721 { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \
1722 { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \
1723 { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \
1724 { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \
1725 { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \
1726 { "ControlGroup", config_parse_cgroup, u, section }, \
1727 { "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \
1728 { "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \
1729 { "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \
1730 { "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \
1731 { "MountFlags", config_parse_mount_flags, &(context), section }, \
1732 { "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \
1733 { "PAMName", config_parse_string_printf, &(context).pam_name, section }, \
1734 { "KillMode", config_parse_kill_mode, &(context).kill_mode, section }, \
1735 { "KillSignal", config_parse_kill_signal, &(context).kill_signal, section }, \
1736 { "UtmpIdentifier", config_parse_string_printf, &(context).utmp_id, section }
1738 const ConfigItem items
[] = {
1739 { "Names", config_parse_names
, u
, "Unit" },
1740 { "Description", config_parse_string_printf
, &u
->meta
.description
, "Unit" },
1741 { "Requires", config_parse_deps
, UINT_TO_PTR(UNIT_REQUIRES
), "Unit" },
1742 { "RequiresOverridable", config_parse_deps
, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE
), "Unit" },
1743 { "Requisite", config_parse_deps
, UINT_TO_PTR(UNIT_REQUISITE
), "Unit" },
1744 { "RequisiteOverridable", config_parse_deps
, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE
), "Unit" },
1745 { "Wants", config_parse_deps
, UINT_TO_PTR(UNIT_WANTS
), "Unit" },
1746 { "Conflicts", config_parse_deps
, UINT_TO_PTR(UNIT_CONFLICTS
), "Unit" },
1747 { "Before", config_parse_deps
, UINT_TO_PTR(UNIT_BEFORE
), "Unit" },
1748 { "After", config_parse_deps
, UINT_TO_PTR(UNIT_AFTER
), "Unit" },
1749 { "OnFailure", config_parse_deps
, UINT_TO_PTR(UNIT_ON_FAILURE
), "Unit" },
1750 { "RecursiveStop", config_parse_bool
, &u
->meta
.recursive_stop
, "Unit" },
1751 { "StopWhenUnneeded", config_parse_bool
, &u
->meta
.stop_when_unneeded
, "Unit" },
1752 { "RefuseManualStart", config_parse_bool
, &u
->meta
.refuse_manual_start
, "Unit" },
1753 { "RefuseManualStop", config_parse_bool
, &u
->meta
.refuse_manual_stop
, "Unit" },
1754 { "AllowIsolate", config_parse_bool
, &u
->meta
.allow_isolate
, "Unit" },
1755 { "DefaultDependencies", config_parse_bool
, &u
->meta
.default_dependencies
, "Unit" },
1756 { "IgnoreDependencyFailure",config_parse_bool
, &u
->meta
.ignore_dependency_failure
, "Unit" },
1757 { "JobTimeoutSec", config_parse_usec
, &u
->meta
.job_timeout
, "Unit" },
1758 { "ConditionPathExists", config_parse_condition_path
, u
, "Unit" },
1759 { "ConditionKernelCommandLine", config_parse_condition_kernel
, u
, "Unit" },
1761 { "PIDFile", config_parse_path
, &u
->service
.pid_file
, "Service" },
1762 { "ExecStartPre", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_START_PRE
, "Service" },
1763 { "ExecStart", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_START
, "Service" },
1764 { "ExecStartPost", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_START_POST
, "Service" },
1765 { "ExecReload", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_RELOAD
, "Service" },
1766 { "ExecStop", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_STOP
, "Service" },
1767 { "ExecStopPost", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_STOP_POST
, "Service" },
1768 { "RestartSec", config_parse_usec
, &u
->service
.restart_usec
, "Service" },
1769 { "TimeoutSec", config_parse_usec
, &u
->service
.timeout_usec
, "Service" },
1770 { "Type", config_parse_service_type
, &u
->service
.type
, "Service" },
1771 { "Restart", config_parse_service_restart
, &u
->service
.restart
, "Service" },
1772 { "PermissionsStartOnly", config_parse_bool
, &u
->service
.permissions_start_only
, "Service" },
1773 { "RootDirectoryStartOnly", config_parse_bool
, &u
->service
.root_directory_start_only
, "Service" },
1774 { "RemainAfterExit", config_parse_bool
, &u
->service
.remain_after_exit
, "Service" },
1775 #ifdef HAVE_SYSV_COMPAT
1776 { "SysVStartPriority", config_parse_sysv_priority
, &u
->service
.sysv_start_priority
, "Service" },
1778 { "SysVStartPriority", config_parse_warn_compat
, NULL
, "Service" },
1780 { "NonBlocking", config_parse_bool
, &u
->service
.exec_context
.non_blocking
, "Service" },
1781 { "BusName", config_parse_string_printf
, &u
->service
.bus_name
, "Service" },
1782 { "NotifyAccess", config_parse_notify_access
, &u
->service
.notify_access
, "Service" },
1783 { "Sockets", config_parse_service_sockets
, &u
->service
, "Service" },
1784 EXEC_CONTEXT_CONFIG_ITEMS(u
->service
.exec_context
, "Service"),
1786 { "ListenStream", config_parse_listen
, &u
->socket
, "Socket" },
1787 { "ListenDatagram", config_parse_listen
, &u
->socket
, "Socket" },
1788 { "ListenSequentialPacket", config_parse_listen
, &u
->socket
, "Socket" },
1789 { "ListenFIFO", config_parse_listen
, &u
->socket
, "Socket" },
1790 { "BindIPv6Only", config_parse_socket_bind
, &u
->socket
, "Socket" },
1791 { "Backlog", config_parse_unsigned
, &u
->socket
.backlog
, "Socket" },
1792 { "BindToDevice", config_parse_bindtodevice
, &u
->socket
, "Socket" },
1793 { "ExecStartPre", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_START_PRE
, "Socket" },
1794 { "ExecStartPost", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_START_POST
, "Socket" },
1795 { "ExecStopPre", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_STOP_PRE
, "Socket" },
1796 { "ExecStopPost", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_STOP_POST
, "Socket" },
1797 { "TimeoutSec", config_parse_usec
, &u
->socket
.timeout_usec
, "Socket" },
1798 { "DirectoryMode", config_parse_mode
, &u
->socket
.directory_mode
, "Socket" },
1799 { "SocketMode", config_parse_mode
, &u
->socket
.socket_mode
, "Socket" },
1800 { "Accept", config_parse_bool
, &u
->socket
.accept
, "Socket" },
1801 { "MaxConnections", config_parse_unsigned
, &u
->socket
.max_connections
, "Socket" },
1802 { "KeepAlive", config_parse_bool
, &u
->socket
.keep_alive
, "Socket" },
1803 { "Priority", config_parse_int
, &u
->socket
.priority
, "Socket" },
1804 { "ReceiveBuffer", config_parse_size
, &u
->socket
.receive_buffer
, "Socket" },
1805 { "SendBuffer", config_parse_size
, &u
->socket
.send_buffer
, "Socket" },
1806 { "IPTOS", config_parse_ip_tos
, &u
->socket
.ip_tos
, "Socket" },
1807 { "IPTTL", config_parse_int
, &u
->socket
.ip_ttl
, "Socket" },
1808 { "Mark", config_parse_int
, &u
->socket
.mark
, "Socket" },
1809 { "PipeSize", config_parse_size
, &u
->socket
.pipe_size
, "Socket" },
1810 { "FreeBind", config_parse_bool
, &u
->socket
.free_bind
, "Socket" },
1811 { "TCPCongestion", config_parse_string
, &u
->socket
.tcp_congestion
, "Socket" },
1812 { "Service", config_parse_socket_service
, &u
->socket
, "Socket" },
1813 EXEC_CONTEXT_CONFIG_ITEMS(u
->socket
.exec_context
, "Socket"),
1815 { "What", config_parse_string
, &u
->mount
.parameters_fragment
.what
, "Mount" },
1816 { "Where", config_parse_path
, &u
->mount
.where
, "Mount" },
1817 { "Options", config_parse_string
, &u
->mount
.parameters_fragment
.options
, "Mount" },
1818 { "Type", config_parse_string
, &u
->mount
.parameters_fragment
.fstype
, "Mount" },
1819 { "TimeoutSec", config_parse_usec
, &u
->mount
.timeout_usec
, "Mount" },
1820 { "DirectoryMode", config_parse_mode
, &u
->mount
.directory_mode
, "Mount" },
1821 EXEC_CONTEXT_CONFIG_ITEMS(u
->mount
.exec_context
, "Mount"),
1823 { "Where", config_parse_path
, &u
->automount
.where
, "Automount" },
1824 { "DirectoryMode", config_parse_mode
, &u
->automount
.directory_mode
, "Automount" },
1826 { "What", config_parse_path
, &u
->swap
.parameters_fragment
.what
, "Swap" },
1827 { "Priority", config_parse_int
, &u
->swap
.parameters_fragment
.priority
, "Swap" },
1829 { "OnActiveSec", config_parse_timer
, &u
->timer
, "Timer" },
1830 { "OnBootSec", config_parse_timer
, &u
->timer
, "Timer" },
1831 { "OnStartupSec", config_parse_timer
, &u
->timer
, "Timer" },
1832 { "OnUnitActiveSec", config_parse_timer
, &u
->timer
, "Timer" },
1833 { "OnUnitInactiveSec", config_parse_timer
, &u
->timer
, "Timer" },
1834 { "Unit", config_parse_timer_unit
, &u
->timer
, "Timer" },
1836 { "PathExists", config_parse_path_spec
, &u
->path
, "Path" },
1837 { "PathChanged", config_parse_path_spec
, &u
->path
, "Path" },
1838 { "DirectoryNotEmpty", config_parse_path_spec
, &u
->path
, "Path" },
1839 { "Unit", config_parse_path_unit
, &u
->path
, "Path" },
1841 /* The [Install] section is ignored here. */
1842 { "Alias", NULL
, NULL
, "Install" },
1843 { "WantedBy", NULL
, NULL
, "Install" },
1844 { "Also", NULL
, NULL
, "Install" },
1846 { NULL
, NULL
, NULL
, NULL
}
1849 #undef EXEC_CONTEXT_CONFIG_ITEMS
1851 const char *sections
[4];
1855 char *filename
= NULL
, *id
= NULL
;
1860 /* Dirty dirty hack. */
1861 dump_items((FILE*) path
, items
);
1868 sections
[0] = "Unit";
1869 sections
[1] = section_table
[u
->meta
.type
];
1870 sections
[2] = "Install";
1873 if (!(symlink_names
= set_new(string_hash_func
, string_compare_func
)))
1876 if (path_is_absolute(path
)) {
1878 if (!(filename
= strdup(path
))) {
1883 if ((r
= open_follow(&filename
, &f
, symlink_names
, &id
)) < 0) {
1894 STRV_FOREACH(p
, u
->meta
.manager
->lookup_paths
.unit_path
) {
1896 /* Instead of opening the path right away, we manually
1897 * follow all symlinks and add their name to our unit
1898 * name set while doing so */
1899 if (!(filename
= path_make_absolute(path
, *p
))) {
1904 if (u
->meta
.manager
->unit_path_cache
&&
1905 !set_get(u
->meta
.manager
->unit_path_cache
, filename
))
1908 r
= open_follow(&filename
, &f
, symlink_names
, &id
);
1919 /* Empty the symlink names for the next run */
1920 while ((sn
= set_steal_first(symlink_names
)))
1931 /* Hmm, no suitable file found? */
1937 if ((r
= merge_by_names(&merged
, symlink_names
, id
)) < 0)
1941 u
->meta
.load_state
= UNIT_MERGED
;
1947 if (fstat(fileno(f
), &st
) < 0) {
1952 if (null_or_empty(&st
))
1953 u
->meta
.load_state
= UNIT_MASKED
;
1955 /* Now, parse the file contents */
1956 if ((r
= config_parse(filename
, f
, sections
, items
, false, u
)) < 0)
1959 u
->meta
.load_state
= UNIT_LOADED
;
1962 free(u
->meta
.fragment_path
);
1963 u
->meta
.fragment_path
= filename
;
1966 u
->meta
.fragment_mtime
= timespec_load(&st
.st_mtim
);
1971 set_free_free(symlink_names
);
1980 int unit_load_fragment(Unit
*u
) {
1986 assert(u
->meta
.load_state
== UNIT_STUB
);
1989 /* First, try to find the unit under its id. We always look
1990 * for unit files in the default directories, to make it easy
1991 * to override things by placing things in /etc/systemd/system */
1992 if ((r
= load_from_path(u
, u
->meta
.id
)) < 0)
1995 /* Try to find an alias we can load this with */
1996 if (u
->meta
.load_state
== UNIT_STUB
)
1997 SET_FOREACH(t
, u
->meta
.names
, i
) {
1999 if (t
== u
->meta
.id
)
2002 if ((r
= load_from_path(u
, t
)) < 0)
2005 if (u
->meta
.load_state
!= UNIT_STUB
)
2009 /* And now, try looking for it under the suggested (originally linked) path */
2010 if (u
->meta
.load_state
== UNIT_STUB
&& u
->meta
.fragment_path
) {
2012 if ((r
= load_from_path(u
, u
->meta
.fragment_path
)) < 0)
2015 if (u
->meta
.load_state
== UNIT_STUB
) {
2016 /* Hmm, this didn't work? Then let's get rid
2017 * of the fragment path stored for us, so that
2018 * we don't point to an invalid location. */
2019 free(u
->meta
.fragment_path
);
2020 u
->meta
.fragment_path
= NULL
;
2024 /* Look for a template */
2025 if (u
->meta
.load_state
== UNIT_STUB
&& u
->meta
.instance
) {
2028 if (!(k
= unit_name_template(u
->meta
.id
)))
2031 r
= load_from_path(u
, k
);
2037 if (u
->meta
.load_state
== UNIT_STUB
)
2038 SET_FOREACH(t
, u
->meta
.names
, i
) {
2040 if (t
== u
->meta
.id
)
2043 if (!(k
= unit_name_template(t
)))
2046 r
= load_from_path(u
, k
);
2052 if (u
->meta
.load_state
!= UNIT_STUB
)
2060 void unit_dump_config_items(FILE *f
) {
2061 /* OK, this wins a prize for extreme ugliness. */
2063 load_from_path(NULL
, (const void*) f
);