1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 typedef struct ExecStatus ExecStatus;
25 typedef struct ExecCommand ExecCommand;
26 typedef struct ExecContext ExecContext;
27 typedef struct ExecRuntime ExecRuntime;
29 #include <linux/types.h>
31 #include <sys/resource.h>
32 #include <sys/capability.h>
46 typedef enum ExecInput {
53 _EXEC_INPUT_INVALID = -1
56 typedef enum ExecOutput {
61 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
63 EXEC_OUTPUT_KMSG_AND_CONSOLE,
65 EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
68 _EXEC_OUTPUT_INVALID = -1
72 dual_timestamp start_timestamp;
73 dual_timestamp exit_timestamp;
75 int code; /* as in siginfo_t::si_code */
76 int status; /* as in sigingo_t::si_status */
82 ExecStatus exec_status;
83 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
93 int netns_storage_socket[2];
98 char **environment_files;
100 struct rlimit *rlimit[RLIMIT_NLIMITS];
101 char *working_directory, *root_directory;
104 int oom_score_adjust;
107 int cpu_sched_policy;
108 int cpu_sched_priority;
111 unsigned cpuset_ncpus;
114 ExecOutput std_output;
115 ExecOutput std_error;
117 nsec_t timer_slack_nsec;
125 bool tty_vt_disallocate;
129 /* Since resolving these names might might involve socket
130 * connections and we don't want to deadlock ourselves these
131 * names are resolved on execution only and in the child
135 char **supplementary_groups;
141 char *selinux_context;
143 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
144 unsigned long mount_flags;
146 uint64_t capability_bounding_set_drop;
152 char *syslog_identifier;
153 bool syslog_level_prefix;
155 bool cpu_sched_reset_on_fork;
158 bool private_network;
159 bool private_devices;
161 bool no_new_privileges;
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. */
173 bool syscall_whitelist:1;
175 bool oom_score_adjust_set:1;
178 bool cpu_sched_set:1;
183 int exec_spawn(ExecCommand *command,
185 ExecContext *context,
186 int fds[], unsigned n_fds,
188 bool apply_permissions,
190 bool apply_tty_stdin,
192 CGroupControllerMask cgroup_mask,
193 const char *cgroup_path,
195 usec_t watchdog_usec,
197 ExecRuntime *runtime,
200 void exec_command_done(ExecCommand *c);
201 void exec_command_done_array(ExecCommand *c, unsigned n);
203 void exec_command_free_list(ExecCommand *c);
204 void exec_command_free_array(ExecCommand **c, unsigned n);
206 char *exec_command_line(char **argv);
208 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
209 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
210 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
211 int exec_command_set(ExecCommand *c, const char *path, ...);
213 void exec_context_init(ExecContext *c);
214 void exec_context_done(ExecContext *c);
215 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
217 int exec_context_load_environment(const ExecContext *c, char ***l);
219 bool exec_context_may_touch_console(ExecContext *c);
221 void exec_status_start(ExecStatus *s, pid_t pid);
222 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
223 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
225 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
226 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
227 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
229 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
230 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
232 void exec_runtime_destroy(ExecRuntime *rt);
234 const char* exec_output_to_string(ExecOutput i) _const_;
235 ExecOutput exec_output_from_string(const char *s) _pure_;
237 const char* exec_input_to_string(ExecInput i) _const_;
238 ExecInput exec_input_from_string(const char *s) _pure_;