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 ExecInput {
65 _EXEC_INPUT_INVALID = -1
68 typedef enum ExecOutput {
76 _EXEC_OUTPUT_INVALID = -1
80 dual_timestamp start_timestamp;
81 dual_timestamp exit_timestamp;
83 int code; /* as in siginfo_t::si_code */
84 int status; /* as in sigingo_t::si_status */
90 ExecStatus exec_status;
91 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
97 struct rlimit *rlimit[RLIMIT_NLIMITS];
98 char *working_directory, *root_directory;
101 int oom_score_adjust;
104 int cpu_sched_policy;
105 int cpu_sched_priority;
108 unsigned cpuset_ncpus;
111 ExecOutput std_output;
112 ExecOutput std_error;
114 unsigned long timer_slack_nsec;
120 /* Since resolving these names might might involve socket
121 * connections and we don't want to deadlock ourselves these
122 * names are resolved on execution only and in the child
126 char **supplementary_groups;
130 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
131 unsigned long mount_flags;
133 uint64_t capability_bounding_set_drop;
135 /* Not relevant for spawning processes, just for killing */
143 char *syslog_identifier;
144 bool syslog_level_prefix;
146 bool cpu_sched_reset_on_fork;
150 /* This is not exposed to the user but available
151 * internally. We need it to make sure that whenever we spawn
152 * /bin/mount it is run in the same process group as us so
153 * that the autofs logic detects that it belongs to us and we
154 * don't enter a trigger loop. */
157 bool oom_score_adjust_set:1;
160 bool cpu_sched_set:1;
161 bool timer_slack_nsec_set:1;
164 int exec_spawn(ExecCommand *command,
166 const ExecContext *context,
167 int fds[], unsigned n_fds,
169 bool apply_permissions,
171 bool apply_tty_stdin,
173 struct CGroupBonding *cgroup_bondings,
176 void exec_command_done(ExecCommand *c);
177 void exec_command_done_array(ExecCommand *c, unsigned n);
179 void exec_command_free_list(ExecCommand *c);
180 void exec_command_free_array(ExecCommand **c, unsigned n);
182 char *exec_command_line(char **argv);
184 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
185 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
186 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
187 int exec_command_set(ExecCommand *c, const char *path, ...);
189 void exec_context_init(ExecContext *c);
190 void exec_context_done(ExecContext *c);
191 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
193 void exec_status_start(ExecStatus *s, pid_t pid);
194 void exec_status_exit(ExecStatus *s, pid_t pid, int code, int status);
195 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
197 const char* exec_output_to_string(ExecOutput i);
198 int exec_output_from_string(const char *s);
200 const char* exec_input_to_string(ExecInput i);
201 int exec_input_from_string(const char *s);