1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
11 systemd is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 systemd is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 typedef struct ExecStatus ExecStatus
;
26 typedef struct ExecCommand ExecCommand
;
27 typedef struct ExecContext ExecContext
;
29 #include <linux/types.h>
31 #include <sys/resource.h>
32 #include <sys/capability.h>
38 struct CGroupAttribute
;
43 #define STDOUT_SYSLOG_BRIDGE_SOCKET "/run/systemd/stdout-syslog-bridge"
45 typedef enum KillMode
{
46 KILL_CONTROL_GROUP
= 0,
50 _KILL_MODE_INVALID
= -1
53 typedef enum KillWho
{
58 _KILL_WHO_INVALID
= -1
61 typedef enum ExecInput
{
68 _EXEC_INPUT_INVALID
= -1
71 typedef enum ExecOutput
{
76 EXEC_OUTPUT_SYSLOG_AND_CONSOLE
,
78 EXEC_OUTPUT_KMSG_AND_CONSOLE
,
81 _EXEC_OUTPUT_INVALID
= -1
85 dual_timestamp start_timestamp
;
86 dual_timestamp exit_timestamp
;
88 int code
; /* as in siginfo_t::si_code */
89 int status
; /* as in sigingo_t::si_status */
95 ExecStatus exec_status
;
96 LIST_FIELDS(ExecCommand
, command
); /* useful for chaining commands */
102 char **environment_files
;
104 struct rlimit
*rlimit
[RLIMIT_NLIMITS
];
105 char *working_directory
, *root_directory
;
108 int oom_score_adjust
;
111 int cpu_sched_policy
;
112 int cpu_sched_priority
;
115 unsigned cpuset_ncpus
;
118 ExecOutput std_output
;
119 ExecOutput std_error
;
121 unsigned long timer_slack_nsec
;
129 bool tty_vt_disallocate
;
131 /* Since resolving these names might might involve socket
132 * connections and we don't want to deadlock ourselves these
133 * names are resolved on execution only and in the child
137 char **supplementary_groups
;
143 char **read_write_dirs
, **read_only_dirs
, **inaccessible_dirs
;
144 unsigned long mount_flags
;
146 uint64_t capability_bounding_set_drop
;
148 /* Not relevant for spawning processes, just for killing */
157 char *syslog_identifier
;
158 bool syslog_level_prefix
;
160 bool cpu_sched_reset_on_fork
;
163 bool private_network
;
165 bool control_group_modify
;
167 /* This is not exposed to the user but available
168 * internally. We need it to make sure that whenever we spawn
169 * /bin/mount it is run in the same process group as us so
170 * that the autofs logic detects that it belongs to us and we
171 * don't enter a trigger loop. */
174 bool oom_score_adjust_set
:1;
177 bool cpu_sched_set
:1;
178 bool timer_slack_nsec_set
:1;
181 int exec_spawn(ExecCommand
*command
,
183 const ExecContext
*context
,
184 int fds
[], unsigned n_fds
,
186 bool apply_permissions
,
188 bool apply_tty_stdin
,
190 struct CGroupBonding
*cgroup_bondings
,
191 struct CGroupAttribute
*cgroup_attributes
,
194 void exec_command_done(ExecCommand
*c
);
195 void exec_command_done_array(ExecCommand
*c
, unsigned n
);
197 void exec_command_free_list(ExecCommand
*c
);
198 void exec_command_free_array(ExecCommand
**c
, unsigned n
);
200 char *exec_command_line(char **argv
);
202 void exec_command_dump(ExecCommand
*c
, FILE *f
, const char *prefix
);
203 void exec_command_dump_list(ExecCommand
*c
, FILE *f
, const char *prefix
);
204 void exec_command_append_list(ExecCommand
**l
, ExecCommand
*e
);
205 int exec_command_set(ExecCommand
*c
, const char *path
, ...);
207 void exec_context_init(ExecContext
*c
);
208 void exec_context_done(ExecContext
*c
);
209 void exec_context_dump(ExecContext
*c
, FILE* f
, const char *prefix
);
210 void exec_context_tty_reset(const ExecContext
*context
);
212 int exec_context_load_environment(const ExecContext
*c
, char ***l
);
214 void exec_status_start(ExecStatus
*s
, pid_t pid
);
215 void exec_status_exit(ExecStatus
*s
, ExecContext
*context
, pid_t pid
, int code
, int status
);
216 void exec_status_dump(ExecStatus
*s
, FILE *f
, const char *prefix
);
218 const char* exec_output_to_string(ExecOutput i
);
219 ExecOutput
exec_output_from_string(const char *s
);
221 const char* exec_input_to_string(ExecInput i
);
222 ExecInput
exec_input_from_string(const char *s
);
224 const char *kill_mode_to_string(KillMode k
);
225 KillMode
kill_mode_from_string(const char *s
);
227 const char *kill_who_to_string(KillWho k
);
228 KillWho
kill_who_from_string(const char *s
);