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 /* Abstract namespace! */
43 #define LOGGER_SOCKET "/org/freedesktop/systemd1/logger"
45 /* This doesn't really belong here, but I couldn't find a better place to put this. */
46 #define SIGNALS_CRASH_HANDLER SIGSEGV,SIGILL,SIGFPE,SIGBUS,SIGQUIT,SIGABRT
47 #define SIGNALS_IGNORE SIGKILL,SIGPIPE
49 typedef enum KillMode {
50 KILL_CONTROL_GROUP = 0,
55 _KILL_MODE_INVALID = -1
58 typedef enum KillWho {
63 _KILL_WHO_INVALID = -1
66 typedef enum ExecInput {
73 _EXEC_INPUT_INVALID = -1
76 typedef enum ExecOutput {
84 _EXEC_OUTPUT_INVALID = -1
88 dual_timestamp start_timestamp;
89 dual_timestamp exit_timestamp;
91 int code; /* as in siginfo_t::si_code */
92 int status; /* as in sigingo_t::si_status */
98 ExecStatus exec_status;
99 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
105 struct rlimit *rlimit[RLIMIT_NLIMITS];
106 char *working_directory, *root_directory;
109 int oom_score_adjust;
112 int cpu_sched_policy;
113 int cpu_sched_priority;
116 unsigned cpuset_ncpus;
119 ExecOutput std_output;
120 ExecOutput std_error;
122 unsigned long timer_slack_nsec;
128 /* Since resolving these names might might involve socket
129 * connections and we don't want to deadlock ourselves these
130 * names are resolved on execution only and in the child
134 char **supplementary_groups;
140 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
141 unsigned long mount_flags;
143 uint64_t capability_bounding_set_drop;
145 /* Not relevant for spawning processes, just for killing */
153 char *syslog_identifier;
154 bool syslog_level_prefix;
156 bool cpu_sched_reset_on_fork;
160 /* This is not exposed to the user but available
161 * internally. We need it to make sure that whenever we spawn
162 * /bin/mount it is run in the same process group as us so
163 * that the autofs logic detects that it belongs to us and we
164 * don't enter a trigger loop. */
167 bool oom_score_adjust_set:1;
170 bool cpu_sched_set:1;
171 bool timer_slack_nsec_set:1;
174 int exec_spawn(ExecCommand *command,
176 const ExecContext *context,
177 int fds[], unsigned n_fds,
179 bool apply_permissions,
181 bool apply_tty_stdin,
183 struct CGroupBonding *cgroup_bondings,
186 void exec_command_done(ExecCommand *c);
187 void exec_command_done_array(ExecCommand *c, unsigned n);
189 void exec_command_free_list(ExecCommand *c);
190 void exec_command_free_array(ExecCommand **c, unsigned n);
192 char *exec_command_line(char **argv);
194 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
195 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
196 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
197 int exec_command_set(ExecCommand *c, const char *path, ...);
199 void exec_context_init(ExecContext *c);
200 void exec_context_done(ExecContext *c);
201 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
203 void exec_status_start(ExecStatus *s, pid_t pid);
204 void exec_status_exit(ExecStatus *s, pid_t pid, int code, int status, const char *utmp_id);
205 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
207 const char* exec_output_to_string(ExecOutput i);
208 int exec_output_from_string(const char *s);
210 const char* exec_input_to_string(ExecInput i);
211 int exec_input_from_string(const char *s);
213 const char *kill_mode_to_string(KillMode k);
214 KillMode kill_mode_from_string(const char *s);
216 const char *kill_who_to_string(KillWho k);
217 KillWho kill_who_from_string(const char *s);