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>
43 typedef enum ExecInput {
50 _EXEC_INPUT_INVALID = -1
53 typedef enum ExecOutput {
58 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
60 EXEC_OUTPUT_KMSG_AND_CONSOLE,
62 EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
65 _EXEC_OUTPUT_INVALID = -1
69 dual_timestamp start_timestamp;
70 dual_timestamp exit_timestamp;
72 int code; /* as in siginfo_t::si_code */
73 int status; /* as in sigingo_t::si_status */
79 ExecStatus exec_status;
80 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
90 int netns_storage_socket[2];
95 char **environment_files;
97 struct rlimit *rlimit[_RLIMIT_MAX];
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 nsec_t timer_slack_nsec;
122 bool tty_vt_disallocate;
126 /* Since resolving these names might might involve socket
127 * connections and we don't want to deadlock ourselves these
128 * names are resolved on execution only and in the child
132 char **supplementary_groups;
138 bool selinux_context_ignore;
139 char *selinux_context;
141 bool apparmor_profile_ignore;
142 char *apparmor_profile;
144 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
145 unsigned long mount_flags;
147 uint64_t capability_bounding_set_drop;
153 char *syslog_identifier;
154 bool syslog_level_prefix;
156 bool cpu_sched_reset_on_fork;
159 bool private_network;
160 bool private_devices;
162 bool no_new_privileges;
164 /* This is not exposed to the user but available
165 * internally. We need it to make sure that whenever we spawn
166 * /bin/mount it is run in the same process group as us so
167 * that the autofs logic detects that it belongs to us and we
168 * don't enter a trigger loop. */
171 unsigned long personality;
176 bool syscall_whitelist:1;
178 Set *address_families;
179 bool address_families_whitelist:1;
181 char **runtime_directory;
182 mode_t runtime_directory_mode;
184 bool oom_score_adjust_set:1;
187 bool cpu_sched_set:1;
188 bool no_new_privileges_set:1;
193 int exec_spawn(ExecCommand *command,
195 ExecContext *context,
196 int fds[], unsigned n_fds,
198 bool apply_permissions,
200 bool apply_tty_stdin,
202 CGroupControllerMask cgroup_mask,
203 const char *cgroup_path,
204 const char *runtime_prefix,
206 usec_t watchdog_usec,
208 ExecRuntime *runtime,
211 void exec_command_done(ExecCommand *c);
212 void exec_command_done_array(ExecCommand *c, unsigned n);
214 void exec_command_free_list(ExecCommand *c);
215 void exec_command_free_array(ExecCommand **c, unsigned n);
217 char *exec_command_line(char **argv);
219 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
220 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
221 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
222 int exec_command_set(ExecCommand *c, const char *path, ...);
224 void exec_context_init(ExecContext *c);
225 void exec_context_done(ExecContext *c);
226 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
228 int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root);
230 int exec_context_load_environment(const ExecContext *c, char ***l);
232 bool exec_context_may_touch_console(ExecContext *c);
234 void exec_status_start(ExecStatus *s, pid_t pid);
235 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
236 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
238 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
239 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
240 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
242 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
243 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
245 void exec_runtime_destroy(ExecRuntime *rt);
247 const char* exec_output_to_string(ExecOutput i) _const_;
248 ExecOutput exec_output_from_string(const char *s) _pure_;
250 const char* exec_input_to_string(ExecInput i) _const_;
251 ExecInput exec_input_from_string(const char *s) _pure_;