1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
12 #include "conf-parser.h"
13 #include "load-fragment.h"
17 static int config_parse_deps(
26 UnitDependency d
= PTR_TO_UINT(data
);
36 FOREACH_WORD(w
, &l
, rvalue
, state
) {
40 if (!(t
= strndup(w
, l
)))
43 r
= unit_add_dependency_by_name(u
, d
, t
);
53 static int config_parse_names(
72 FOREACH_WORD(w
, &l
, rvalue
, state
) {
77 if (!(t
= strndup(w
, l
)))
80 other
= manager_get_unit(u
->meta
.manager
, t
);
86 if (other
->meta
.load_state
!= UNIT_STUB
) {
91 if ((r
= unit_merge(u
, other
)) < 0) {
98 if ((r
= unit_add_name(u
, t
)) < 0) {
110 static int config_parse_listen(
111 const char *filename
,
130 if (!(p
= new0(SocketPort
, 1)))
133 if (streq(lvalue
, "ListenFIFO")) {
134 p
->type
= SOCKET_FIFO
;
136 if (!(p
->path
= strdup(rvalue
))) {
141 p
->type
= SOCKET_SOCKET
;
143 if ((r
= socket_address_parse(&p
->address
, rvalue
)) < 0) {
144 log_error("[%s:%u] Failed to parse address value: %s", filename
, line
, rvalue
);
149 if (streq(lvalue
, "ListenStream"))
150 p
->address
.type
= SOCK_STREAM
;
151 else if (streq(lvalue
, "ListenDatagram"))
152 p
->address
.type
= SOCK_DGRAM
;
154 assert(streq(lvalue
, "ListenSequentialPacket"));
155 p
->address
.type
= SOCK_SEQPACKET
;
158 if (socket_address_family(&p
->address
) != AF_LOCAL
&& p
->address
.type
== SOCK_SEQPACKET
) {
160 return -EPROTONOSUPPORT
;
165 LIST_PREPEND(SocketPort
, port
, s
->ports
, p
);
170 static int config_parse_socket_bind(
171 const char *filename
,
189 if ((r
= parse_boolean(rvalue
)) < 0) {
190 log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename
, line
, rvalue
);
194 s
->bind_ipv6_only
= r
? SOCKET_ADDRESS_IPV6_ONLY
: SOCKET_ADDRESS_BOTH
;
199 static int config_parse_nice(
200 const char *filename
,
208 ExecContext
*c
= data
;
216 if ((r
= safe_atoi(rvalue
, &priority
)) < 0) {
217 log_error("[%s:%u] Failed to parse nice priority: %s", filename
, line
, rvalue
);
221 if (priority
< PRIO_MIN
|| priority
>= PRIO_MAX
) {
222 log_error("[%s:%u] Nice priority out of range: %s", filename
, line
, rvalue
);
232 static int config_parse_oom_adjust(
233 const char *filename
,
241 ExecContext
*c
= data
;
249 if ((r
= safe_atoi(rvalue
, &oa
)) < 0) {
250 log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename
, line
, rvalue
);
254 if (oa
< OOM_DISABLE
|| oa
> OOM_ADJUST_MAX
) {
255 log_error("[%s:%u] OOM adjust value out of range: %s", filename
, line
, rvalue
);
260 c
->oom_adjust_set
= true;
265 static int config_parse_umask(
266 const char *filename
,
284 l
= strtol(rvalue
, &x
, 8);
285 if (!x
|| *x
|| errno
) {
286 log_error("[%s:%u] Failed to parse umask value: %s", filename
, line
, rvalue
);
287 return errno
? -errno
: -EINVAL
;
290 if (l
< 0000 || l
> 0777) {
291 log_error("[%s:%u] umask value out of range: %s", filename
, line
, rvalue
);
299 static int config_parse_exec(
300 const char *filename
,
308 ExecCommand
**e
= data
, *ee
, *nce
= NULL
;
321 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
)
324 if (!(n
= new(char*, k
+1)))
328 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
)
329 if (!(n
[k
++] = strndup(w
, l
)))
334 if (!n
[0] || !path_is_absolute(n
[0])) {
335 log_error("[%s:%u] Invalid executable path in command line: %s", filename
, line
, rvalue
);
340 if (!(nce
= new0(ExecCommand
, 1)))
344 if (!(nce
->path
= strdup(n
[0])))
348 /* It's kinda important that we keep the order here */
349 LIST_FIND_TAIL(ExecCommand
, command
, *e
, ee
);
350 LIST_INSERT_AFTER(ExecCommand
, command
, *e
, ee
, nce
);
366 static int config_parse_usec(
367 const char *filename
,
376 unsigned long long u
;
384 if ((r
= safe_atollu(rvalue
, &u
)) < 0) {
385 log_error("[%s:%u] Failed to parse time value: %s", filename
, line
, rvalue
);
389 /* We actually assume the user configures seconds. Later on we
390 * might choose to support suffixes for time values, to
391 * configure bigger or smaller units */
393 *usec
= u
* USEC_PER_SEC
;
398 static int config_parse_service_type(
399 const char *filename
,
414 if (streq(rvalue
, "forking"))
415 s
->type
= SERVICE_FORKING
;
416 else if (streq(rvalue
, "simple"))
417 s
->type
= SERVICE_SIMPLE
;
419 log_error("[%s:%u] Failed to parse service type: %s", filename
, line
, rvalue
);
426 static int config_parse_service_restart(
427 const char *filename
,
442 if (streq(rvalue
, "once"))
443 s
->restart
= SERVICE_ONCE
;
444 else if (streq(rvalue
, "on-success"))
445 s
->type
= SERVICE_RESTART_ON_SUCCESS
;
446 else if (streq(rvalue
, "always"))
447 s
->type
= SERVICE_RESTART_ALWAYS
;
449 log_error("[%s:%u] Failed to parse service type: %s", filename
, line
, rvalue
);
456 int config_parse_bindtodevice(
457 const char *filename
,
473 if (rvalue
[0] && !streq(rvalue
, "*")) {
474 if (!(n
= strdup(rvalue
)))
479 free(s
->bind_to_device
);
480 s
->bind_to_device
= n
;
485 int config_parse_output(
486 const char *filename
,
494 ExecOutput
*o
= data
;
501 if (streq(rvalue
, "syslog"))
503 else if (streq(rvalue
, "null"))
505 else if (streq(rvalue
, "syslog"))
507 else if (streq(rvalue
, "kernel"))
510 log_error("[%s:%u] Failed to parse log output: %s", filename
, line
, rvalue
);
517 int config_parse_facility(
518 const char *filename
,
526 static const char * const table
[LOG_NFACILITIES
] = {
527 [LOG_FAC(LOG_KERN
)] = "kern",
528 [LOG_FAC(LOG_USER
)] = "user",
529 [LOG_FAC(LOG_MAIL
)] = "mail",
530 [LOG_FAC(LOG_DAEMON
)] = "daemon",
531 [LOG_FAC(LOG_AUTH
)] = "auth",
532 [LOG_FAC(LOG_SYSLOG
)] = "syslog",
533 [LOG_FAC(LOG_LPR
)] = "lpr",
534 [LOG_FAC(LOG_NEWS
)] = "news",
535 [LOG_FAC(LOG_UUCP
)] = "uucp",
536 [LOG_FAC(LOG_CRON
)] = "cron",
537 [LOG_FAC(LOG_AUTHPRIV
)] = "authpriv",
538 [LOG_FAC(LOG_FTP
)] = "ftp",
539 [LOG_FAC(LOG_LOCAL0
)] = "local0",
540 [LOG_FAC(LOG_LOCAL1
)] = "local1",
541 [LOG_FAC(LOG_LOCAL2
)] = "local2",
542 [LOG_FAC(LOG_LOCAL3
)] = "local3",
543 [LOG_FAC(LOG_LOCAL4
)] = "local4",
544 [LOG_FAC(LOG_LOCAL5
)] = "local5",
545 [LOG_FAC(LOG_LOCAL6
)] = "local6",
546 [LOG_FAC(LOG_LOCAL7
)] = "local7"
549 ExecOutput
*o
= data
;
557 for (i
= 0; i
< (int) ELEMENTSOF(table
); i
++)
558 if (streq(rvalue
, table
[i
])) {
559 *o
= LOG_MAKEPRI(i
, LOG_PRI(*o
));
563 if (i
>= (int) ELEMENTSOF(table
)) {
565 /* Second try, let's see if this is a number. */
566 if (safe_atoi(rvalue
, &i
) >= 0 &&
568 i
< (int) ELEMENTSOF(table
))
569 *o
= LOG_MAKEPRI(i
, LOG_PRI(*o
));
571 log_error("[%s:%u] Failed to parse log output: %s", filename
, line
, rvalue
);
579 int config_parse_level(
580 const char *filename
,
588 static const char * const table
[LOG_DEBUG
+1] = {
589 [LOG_EMERG
] = "emerg",
590 [LOG_ALERT
] = "alert",
593 [LOG_WARNING
] = "warning",
594 [LOG_NOTICE
] = "notice",
596 [LOG_DEBUG
] = "debug"
599 ExecOutput
*o
= data
;
607 for (i
= 0; i
< (int) ELEMENTSOF(table
); i
++)
608 if (streq(rvalue
, table
[i
])) {
609 *o
= LOG_MAKEPRI(LOG_FAC(*o
), i
);
613 if (i
>= LOG_NFACILITIES
) {
615 /* Second try, let's see if this is a number. */
616 if (safe_atoi(rvalue
, &i
) >= 0 &&
618 i
< (int) ELEMENTSOF(table
))
619 *o
= LOG_MAKEPRI(LOG_FAC(*o
), i
);
621 log_error("[%s:%u] Failed to parse log output: %s", filename
, line
, rvalue
);
629 int config_parse_io_class(
630 const char *filename
,
638 static const char * const table
[] = {
639 [IOPRIO_CLASS_NONE
] = NULL
,
640 [IOPRIO_CLASS_RT
] = "realtime",
641 [IOPRIO_CLASS_BE
] = "best-effort",
642 [IOPRIO_CLASS_IDLE
] = "idle",
645 ExecContext
*c
= data
;
653 for (i
= 0; i
< (int) ELEMENTSOF(table
); i
++) {
657 if (streq(rvalue
, table
[i
])) {
658 c
->ioprio
= IOPRIO_PRIO_VALUE(i
, IOPRIO_PRIO_DATA(c
->ioprio
));
663 if (i
>= (int) ELEMENTSOF(table
)) {
665 /* Second try, let's see if this is a number. */
666 if (safe_atoi(rvalue
, &i
) >= 0 &&
668 i
< (int) ELEMENTSOF(table
) &&
670 c
->ioprio
= IOPRIO_PRIO_VALUE(i
, IOPRIO_PRIO_DATA(c
->ioprio
));
672 log_error("[%s:%u] Failed to parse io priority: %s", filename
, line
, rvalue
);
677 c
->ioprio_set
= true;
682 int config_parse_io_priority(
683 const char *filename
,
691 ExecContext
*c
= data
;
699 if (safe_atoi(rvalue
, &i
) >= 0 &&
702 c
->ioprio
= IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c
->ioprio
), i
);
704 log_error("[%s:%u] Failed to parse io priority: %s", filename
, line
, rvalue
);
708 c
->ioprio_set
= true;
715 static int open_follow(char **filename
, FILE **_f
, Set
*names
, char **_id
) {
726 /* This will update the filename pointer if the loaded file is
727 * reached by a symlink. The old string will be freed. */
730 char *target
, *k
, *name
;
732 if (c
++ >= FOLLOW_MAX
)
735 path_kill_slashes(*filename
);
737 /* Add the file name we are currently looking at to
738 * the names of this unit */
739 name
= file_name_from_path(*filename
);
740 if (!(id
= set_get(names
, name
))) {
742 if (!(id
= strdup(name
)))
745 if ((r
= set_put(names
, id
)) < 0) {
751 /* Try to open the file name, but don't if its a symlink */
752 if ((fd
= open(*filename
, O_RDONLY
|O_CLOEXEC
|O_NOCTTY
|O_NOFOLLOW
)) >= 0)
758 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
759 if ((r
= readlink_malloc(*filename
, &target
)) < 0)
762 k
= file_in_same_dir(*filename
, target
);
772 if (!(f
= fdopen(fd
, "r"))) {
774 assert(close_nointr(fd
) == 0);
783 static int load_from_path(Unit
*u
, const char *path
) {
785 static const char* const section_table
[_UNIT_TYPE_MAX
] = {
786 [UNIT_SERVICE
] = "Service",
787 [UNIT_TIMER
] = "Timer",
788 [UNIT_SOCKET
] = "Socket",
789 [UNIT_TARGET
] = "Target",
790 [UNIT_DEVICE
] = "Device",
791 [UNIT_MOUNT
] = "Mount",
792 [UNIT_AUTOMOUNT
] = "Automount",
793 [UNIT_SNAPSHOT
] = "Snapshot"
796 #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
797 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
798 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
799 { "User", config_parse_string, &(context).user, section }, \
800 { "Group", config_parse_string, &(context).group, section }, \
801 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
802 { "Nice", config_parse_nice, &(context), section }, \
803 { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \
804 { "IOPriority", config_parse_io_priority, &(context), section }, \
805 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
806 { "UMask", config_parse_umask, &(context).umask, section }, \
807 { "Environment", config_parse_strv, &(context).environment, section }, \
808 { "Output", config_parse_output, &(context).output, section }, \
809 { "SyslogIdentifier", config_parse_string, &(context).syslog_identifier, section }, \
810 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
811 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }
813 const ConfigItem items
[] = {
814 { "Names", config_parse_names
, u
, "Meta" },
815 { "Description", config_parse_string
, &u
->meta
.description
, "Meta" },
816 { "Requires", config_parse_deps
, UINT_TO_PTR(UNIT_REQUIRES
), "Meta" },
817 { "SoftRequires", config_parse_deps
, UINT_TO_PTR(UNIT_SOFT_REQUIRES
), "Meta" },
818 { "Wants", config_parse_deps
, UINT_TO_PTR(UNIT_WANTS
), "Meta" },
819 { "Requisite", config_parse_deps
, UINT_TO_PTR(UNIT_REQUISITE
), "Meta" },
820 { "SoftRequisite", config_parse_deps
, UINT_TO_PTR(UNIT_SOFT_REQUISITE
), "Meta" },
821 { "Conflicts", config_parse_deps
, UINT_TO_PTR(UNIT_CONFLICTS
), "Meta" },
822 { "Before", config_parse_deps
, UINT_TO_PTR(UNIT_BEFORE
), "Meta" },
823 { "After", config_parse_deps
, UINT_TO_PTR(UNIT_AFTER
), "Meta" },
824 { "RecursiveStop", config_parse_bool
, &u
->meta
.recursive_stop
, "Meta" },
825 { "StopWhenUnneeded", config_parse_bool
, &u
->meta
.stop_when_unneeded
, "Meta" },
827 { "PIDFile", config_parse_path
, &u
->service
.pid_file
, "Service" },
828 { "ExecStartPre", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_START_PRE
, "Service" },
829 { "ExecStart", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_START
, "Service" },
830 { "ExecStartPost", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_START_POST
, "Service" },
831 { "ExecReload", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_RELOAD
, "Service" },
832 { "ExecStop", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_STOP
, "Service" },
833 { "ExecStopPost", config_parse_exec
, u
->service
.exec_command
+SERVICE_EXEC_STOP_POST
, "Service" },
834 { "RestartSec", config_parse_usec
, &u
->service
.restart_usec
, "Service" },
835 { "TimeoutSec", config_parse_usec
, &u
->service
.timeout_usec
, "Service" },
836 { "Type", config_parse_service_type
, &u
->service
, "Service" },
837 { "Restart", config_parse_service_restart
, &u
->service
, "Service" },
838 EXEC_CONTEXT_CONFIG_ITEMS(u
->service
.exec_context
, "Service"),
840 { "ListenStream", config_parse_listen
, &u
->socket
, "Socket" },
841 { "ListenDatagram", config_parse_listen
, &u
->socket
, "Socket" },
842 { "ListenSequentialPacket", config_parse_listen
, &u
->socket
, "Socket" },
843 { "ListenFIFO", config_parse_listen
, &u
->socket
, "Socket" },
844 { "BindIPv6Only", config_parse_socket_bind
, &u
->socket
, "Socket" },
845 { "Backlog", config_parse_unsigned
, &u
->socket
.backlog
, "Socket" },
846 { "BindToDevice", config_parse_bindtodevice
, &u
->socket
, "Socket" },
847 { "ExecStartPre", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_START_PRE
, "Socket" },
848 { "ExecStartPost", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_START_POST
, "Socket" },
849 { "ExecStopPre", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_STOP_PRE
, "Socket" },
850 { "ExecStopPost", config_parse_exec
, u
->socket
.exec_command
+SOCKET_EXEC_STOP_POST
, "Socket" },
851 EXEC_CONTEXT_CONFIG_ITEMS(u
->socket
.exec_context
, "Socket"),
853 EXEC_CONTEXT_CONFIG_ITEMS(u
->automount
.exec_context
, "Automount"),
855 { NULL
, NULL
, NULL
, NULL
}
858 #undef EXEC_CONTEXT_CONFIG_ITEMS
860 const char *sections
[3];
867 sections
[0] = "Meta";
868 sections
[1] = section_table
[u
->meta
.type
];
871 if (!(symlink_names
= set_new(string_hash_func
, string_compare_func
)))
874 /* Instead of opening the path right away, we manually
875 * follow all symlinks and add their name to our unit
876 * name set while doing so */
877 if (!(filename
= path_make_absolute(path
, unit_path()))) {
882 if ((r
= open_follow(&filename
, &f
, symlink_names
, &id
)) < 0) {
884 r
= 0; /* returning 0 means: no suitable config file found */
889 /* Now, parse the file contents */
890 r
= config_parse(filename
, f
, sections
, items
, u
);
894 /* Let's try to add in all symlink names we found */
895 while ((k
= set_steal_first(symlink_names
))) {
896 if ((r
= unit_add_name(u
, k
)) < 0)
901 unit_choose_id(u
, id
);
906 free(u
->meta
.load_path
);
907 u
->meta
.load_path
= filename
;
910 r
= 1; /* returning 1 means: suitable config file found and loaded */
913 while ((k
= set_steal_first(symlink_names
)))
915 set_free(symlink_names
);
921 int unit_load_fragment(Unit
*u
) {
926 assert(u
->meta
.load_state
== UNIT_STUB
);
928 if (u
->meta
.load_path
)
929 r
= load_from_path(u
, u
->meta
.load_path
);
934 /* Try to find a name we can load this with */
935 SET_FOREACH(t
, u
->meta
.names
, i
)
936 if ((r
= load_from_path(u
, t
)) != 0)
940 if (u
->meta
.type
== UNIT_SOCKET
)
941 c
= &u
->socket
.exec_context
;
942 else if (u
->meta
.type
== UNIT_SERVICE
)
943 c
= &u
->service
.exec_context
;
948 (c
->output
== EXEC_KERNEL
|| c
->output
== EXEC_SYSLOG
)) {
951 /* If syslog or kernel logging is requested, make sure
952 * our own logging daemon is run first. */
954 if ((k
= unit_add_dependency_by_name(u
, UNIT_AFTER
, SPECIAL_LOGGER_SOCKET
)) < 0)
957 if ((k
= unit_add_dependency_by_name(u
, UNIT_REQUIRES
, SPECIAL_LOGGER_SOCKET
)) < 0)