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>
42 #define LOGGER_SOCKET "/run/systemd/logger"
44 typedef enum KillMode {
45 KILL_CONTROL_GROUP = 0,
49 _KILL_MODE_INVALID = -1
52 typedef enum KillWho {
57 _KILL_WHO_INVALID = -1
60 typedef enum ExecInput {
67 _EXEC_INPUT_INVALID = -1
70 typedef enum ExecOutput {
75 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
77 EXEC_OUTPUT_KMSG_AND_CONSOLE,
80 _EXEC_OUTPUT_INVALID = -1
84 dual_timestamp start_timestamp;
85 dual_timestamp exit_timestamp;
87 int code; /* as in siginfo_t::si_code */
88 int status; /* as in sigingo_t::si_status */
94 ExecStatus exec_status;
95 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
101 char **environment_files;
103 struct rlimit *rlimit[RLIMIT_NLIMITS];
104 char *working_directory, *root_directory;
107 int oom_score_adjust;
110 int cpu_sched_policy;
111 int cpu_sched_priority;
114 unsigned cpuset_ncpus;
117 ExecOutput std_output;
118 ExecOutput std_error;
120 unsigned long timer_slack_nsec;
128 bool tty_vt_disallocate;
130 /* Since resolving these names might might involve socket
131 * connections and we don't want to deadlock ourselves these
132 * names are resolved on execution only and in the child
136 char **supplementary_groups;
142 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
143 unsigned long mount_flags;
145 uint64_t capability_bounding_set_drop;
147 /* Not relevant for spawning processes, just for killing */
156 char *syslog_identifier;
157 bool syslog_level_prefix;
159 bool cpu_sched_reset_on_fork;
163 /* This is not exposed to the user but available
164 * internally. We need it to make sure that whenever we spawn
165 * /bin/mount it is run in the same process group as us so
166 * that the autofs logic detects that it belongs to us and we
167 * don't enter a trigger loop. */
170 bool oom_score_adjust_set:1;
173 bool cpu_sched_set:1;
174 bool timer_slack_nsec_set:1;
177 int exec_spawn(ExecCommand *command,
179 const ExecContext *context,
180 int fds[], unsigned n_fds,
182 bool apply_permissions,
184 bool apply_tty_stdin,
186 struct CGroupBonding *cgroup_bondings,
189 void exec_command_done(ExecCommand *c);
190 void exec_command_done_array(ExecCommand *c, unsigned n);
192 void exec_command_free_list(ExecCommand *c);
193 void exec_command_free_array(ExecCommand **c, unsigned n);
195 char *exec_command_line(char **argv);
197 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
198 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
199 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
200 int exec_command_set(ExecCommand *c, const char *path, ...);
202 void exec_context_init(ExecContext *c);
203 void exec_context_done(ExecContext *c);
204 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
205 void exec_context_tty_reset(const ExecContext *context);
207 int exec_context_load_environment(const ExecContext *c, char ***l);
209 void exec_status_start(ExecStatus *s, pid_t pid);
210 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
211 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
213 const char* exec_output_to_string(ExecOutput i);
214 ExecOutput exec_output_from_string(const char *s);
216 const char* exec_input_to_string(ExecInput i);
217 ExecInput exec_input_from_string(const char *s);
219 const char *kill_mode_to_string(KillMode k);
220 KillMode kill_mode_from_string(const char *s);
222 const char *kill_who_to_string(KillWho k);
223 KillWho kill_who_from_string(const char *s);