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;
28 typedef struct ExecParameters ExecParameters;
30 #include <linux/types.h>
32 #include <sys/resource.h>
33 #include <sys/capability.h>
43 #include "namespace.h"
45 typedef enum ExecInput {
52 _EXEC_INPUT_INVALID = -1
55 typedef enum ExecOutput {
60 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
62 EXEC_OUTPUT_KMSG_AND_CONSOLE,
64 EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
67 _EXEC_OUTPUT_INVALID = -1
71 dual_timestamp start_timestamp;
72 dual_timestamp exit_timestamp;
74 int code; /* as in siginfo_t::si_code */
75 int status; /* as in sigingo_t::si_status */
81 ExecStatus exec_status;
82 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
92 int netns_storage_socket[2];
97 char **environment_files;
99 struct rlimit *rlimit[_RLIMIT_MAX];
100 char *working_directory, *root_directory;
103 int oom_score_adjust;
106 int cpu_sched_policy;
107 int cpu_sched_priority;
110 unsigned cpuset_ncpus;
113 ExecOutput std_output;
114 ExecOutput std_error;
116 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;
161 ProtectSystem protect_system;
162 ProtectHome protect_home;
164 bool no_new_privileges;
166 /* This is not exposed to the user but available
167 * internally. We need it to make sure that whenever we spawn
168 * /bin/mount it is run in the same process group as us so
169 * that the autofs logic detects that it belongs to us and we
170 * don't enter a trigger loop. */
173 unsigned long personality;
178 bool syscall_whitelist:1;
180 Set *address_families;
181 bool address_families_whitelist:1;
183 char **runtime_directory;
184 mode_t runtime_directory_mode;
186 bool oom_score_adjust_set:1;
189 bool cpu_sched_set:1;
190 bool no_new_privileges_set:1;
195 struct ExecParameters {
197 int *fds; unsigned n_fds;
199 bool apply_permissions;
201 bool apply_tty_stdin;
203 CGroupControllerMask cgroup_supported;
204 const char *cgroup_path;
205 const char *runtime_prefix;
207 usec_t watchdog_usec;
211 int exec_spawn(ExecCommand *command,
212 const ExecContext *context,
213 const ExecParameters *exec_params,
214 ExecRuntime *runtime,
217 void exec_command_done(ExecCommand *c);
218 void exec_command_done_array(ExecCommand *c, unsigned n);
220 void exec_command_free_list(ExecCommand *c);
221 void exec_command_free_array(ExecCommand **c, unsigned n);
223 char *exec_command_line(char **argv);
225 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
226 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
227 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
228 int exec_command_set(ExecCommand *c, const char *path, ...);
230 void exec_context_init(ExecContext *c);
231 void exec_context_done(ExecContext *c);
232 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
234 int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root);
236 int exec_context_load_environment(const ExecContext *c, char ***l);
238 bool exec_context_may_touch_console(ExecContext *c);
240 void exec_status_start(ExecStatus *s, pid_t pid);
241 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
242 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
244 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
245 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
246 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
248 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
249 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
251 void exec_runtime_destroy(ExecRuntime *rt);
253 const char* exec_output_to_string(ExecOutput i) _const_;
254 ExecOutput exec_output_from_string(const char *s) _pure_;
256 const char* exec_input_to_string(ExecInput i) _const_;
257 ExecInput exec_input_from_string(const char *s) _pure_;