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;
120 bool tty_vt_disallocate;
124 /* Since resolving these names might might involve socket
125 * connections and we don't want to deadlock ourselves these
126 * names are resolved on execution only and in the child
130 char **supplementary_groups;
136 bool selinux_context_ignore;
137 char *selinux_context;
139 bool apparmor_profile_ignore;
140 char *apparmor_profile;
142 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
143 unsigned long mount_flags;
145 uint64_t capability_bounding_set_drop;
151 char *syslog_identifier;
152 bool syslog_level_prefix;
154 bool cpu_sched_reset_on_fork;
157 bool private_network;
158 bool private_devices;
160 bool no_new_privileges;
162 /* This is not exposed to the user but available
163 * internally. We need it to make sure that whenever we spawn
164 * /bin/mount it is run in the same process group as us so
165 * that the autofs logic detects that it belongs to us and we
166 * don't enter a trigger loop. */
169 unsigned long personality;
174 bool syscall_whitelist:1;
176 Set *address_families;
177 bool address_families_whitelist:1;
179 char **runtime_directory;
180 mode_t runtime_directory_mode;
182 bool oom_score_adjust_set:1;
185 bool cpu_sched_set:1;
186 bool no_new_privileges_set:1;
191 int exec_spawn(ExecCommand *command,
193 ExecContext *context,
194 int fds[], unsigned n_fds,
196 bool apply_permissions,
198 bool apply_tty_stdin,
200 CGroupControllerMask cgroup_mask,
201 const char *cgroup_path,
202 const char *runtime_prefix,
204 usec_t watchdog_usec,
206 ExecRuntime *runtime,
209 void exec_command_done(ExecCommand *c);
210 void exec_command_done_array(ExecCommand *c, unsigned n);
212 void exec_command_free_list(ExecCommand *c);
213 void exec_command_free_array(ExecCommand **c, unsigned n);
215 char *exec_command_line(char **argv);
217 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
218 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
219 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
220 int exec_command_set(ExecCommand *c, const char *path, ...);
222 void exec_context_init(ExecContext *c);
223 void exec_context_done(ExecContext *c);
224 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
226 int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root);
228 int exec_context_load_environment(const ExecContext *c, char ***l);
230 bool exec_context_may_touch_console(ExecContext *c);
232 void exec_status_start(ExecStatus *s, pid_t pid);
233 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
234 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
236 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
237 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
238 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
240 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
241 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
243 void exec_runtime_destroy(ExecRuntime *rt);
245 const char* exec_output_to_string(ExecOutput i) _const_;
246 ExecOutput exec_output_from_string(const char *s) _pure_;
248 const char* exec_input_to_string(ExecInput i) _const_;
249 ExecInput exec_input_from_string(const char *s) _pure_;