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"
44 #include "bus-endpoint.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_MAX];
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;
123 bool tty_vt_disallocate;
127 /* Since resolving these names might might involve socket
128 * connections and we don't want to deadlock ourselves these
129 * names are resolved on execution only and in the child
133 char **supplementary_groups;
139 bool selinux_context_ignore;
140 char *selinux_context;
142 bool apparmor_profile_ignore;
143 char *apparmor_profile;
145 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
146 unsigned long mount_flags;
148 uint64_t capability_bounding_set_drop;
154 char *syslog_identifier;
155 bool syslog_level_prefix;
157 bool cpu_sched_reset_on_fork;
160 bool private_network;
161 bool private_devices;
162 ProtectSystem protect_system;
163 ProtectHome protect_home;
165 bool no_new_privileges;
167 /* This is not exposed to the user but available
168 * internally. We need it to make sure that whenever we spawn
169 * /bin/mount it is run in the same process group as us so
170 * that the autofs logic detects that it belongs to us and we
171 * don't enter a trigger loop. */
174 unsigned long personality;
179 bool syscall_whitelist:1;
181 Set *address_families;
182 bool address_families_whitelist:1;
184 char **runtime_directory;
185 mode_t runtime_directory_mode;
187 bool oom_score_adjust_set:1;
190 bool cpu_sched_set:1;
191 bool no_new_privileges_set:1;
193 /* custom dbus enpoint */
194 BusEndpoint *bus_endpoint;
199 struct ExecParameters {
201 int *fds; unsigned n_fds;
203 bool apply_permissions;
205 bool apply_tty_stdin;
207 CGroupControllerMask cgroup_supported;
208 const char *cgroup_path;
209 const char *runtime_prefix;
211 usec_t watchdog_usec;
213 char *bus_endpoint_path;
217 int exec_spawn(ExecCommand *command,
218 const ExecContext *context,
219 const ExecParameters *exec_params,
220 ExecRuntime *runtime,
223 void exec_command_done(ExecCommand *c);
224 void exec_command_done_array(ExecCommand *c, unsigned n);
226 void exec_command_free_list(ExecCommand *c);
227 void exec_command_free_array(ExecCommand **c, unsigned n);
229 char *exec_command_line(char **argv);
231 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
232 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
233 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
234 int exec_command_set(ExecCommand *c, const char *path, ...);
236 void exec_context_init(ExecContext *c);
237 void exec_context_done(ExecContext *c);
238 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
240 int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root);
242 int exec_context_load_environment(const ExecContext *c, char ***l);
244 bool exec_context_may_touch_console(ExecContext *c);
246 void exec_status_start(ExecStatus *s, pid_t pid);
247 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
248 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
250 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
251 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
252 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
254 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
255 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
257 void exec_runtime_destroy(ExecRuntime *rt);
259 const char* exec_output_to_string(ExecOutput i) _const_;
260 ExecOutput exec_output_from_string(const char *s) _pure_;
262 const char* exec_input_to_string(ExecInput i) _const_;
263 ExecInput exec_input_from_string(const char *s) _pure_;