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 Lesser General Public License as published by
13 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
21 You should have received a copy of the GNU Lesser 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 typedef enum KillMode {
44 KILL_CONTROL_GROUP = 0,
48 _KILL_MODE_INVALID = -1
51 typedef enum KillWho {
56 _KILL_WHO_INVALID = -1
59 typedef enum ExecInput {
66 _EXEC_INPUT_INVALID = -1
69 typedef enum ExecOutput {
74 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
76 EXEC_OUTPUT_KMSG_AND_CONSOLE,
78 EXEC_OUTPUT_JOURNAL_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 nsec_t timer_slack_nsec;
129 bool tty_vt_disallocate;
133 /* Since resolving these names might might involve socket
134 * connections and we don't want to deadlock ourselves these
135 * names are resolved on execution only and in the child
139 char **supplementary_groups;
145 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
146 unsigned long mount_flags;
148 uint64_t capability_bounding_set_drop;
150 /* Not relevant for spawning processes, just for killing */
159 char *syslog_identifier;
160 bool syslog_level_prefix;
162 bool cpu_sched_reset_on_fork;
165 bool private_network;
167 bool no_new_privileges;
169 bool control_group_modify;
170 int control_group_persistent;
172 /* This is not exposed to the user but available
173 * internally. We need it to make sure that whenever we spawn
174 * /bin/mount it is run in the same process group as us so
175 * that the autofs logic detects that it belongs to us and we
176 * don't enter a trigger loop. */
179 uint32_t *syscall_filter;
181 bool oom_score_adjust_set:1;
184 bool cpu_sched_set:1;
187 int exec_spawn(ExecCommand *command,
189 const ExecContext *context,
190 int fds[], unsigned n_fds,
192 bool apply_permissions,
194 bool apply_tty_stdin,
196 struct CGroupBonding *cgroup_bondings,
197 struct CGroupAttribute *cgroup_attributes,
198 const char *cgroup_suffix,
203 void exec_command_done(ExecCommand *c);
204 void exec_command_done_array(ExecCommand *c, unsigned n);
206 void exec_command_free_list(ExecCommand *c);
207 void exec_command_free_array(ExecCommand **c, unsigned n);
209 char *exec_command_line(char **argv);
211 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
212 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
213 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
214 int exec_command_set(ExecCommand *c, const char *path, ...);
216 void exec_context_init(ExecContext *c);
217 void exec_context_done(ExecContext *c);
218 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
219 void exec_context_tty_reset(const ExecContext *context);
221 int exec_context_load_environment(const ExecContext *c, char ***l);
223 void exec_status_start(ExecStatus *s, pid_t pid);
224 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
225 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
227 const char* exec_output_to_string(ExecOutput i);
228 ExecOutput exec_output_from_string(const char *s);
230 const char* exec_input_to_string(ExecInput i);
231 ExecInput exec_input_from_string(const char *s);
233 const char *kill_mode_to_string(KillMode k);
234 KillMode kill_mode_from_string(const char *s);
236 const char *kill_who_to_string(KillWho k);
237 KillWho kill_who_from_string(const char *s);