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 bool smack_process_label_ignore;
146 char *smack_process_label;
148 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
149 unsigned long mount_flags;
151 uint64_t capability_bounding_set_drop;
157 char *syslog_identifier;
158 bool syslog_level_prefix;
160 bool cpu_sched_reset_on_fork;
163 bool private_network;
164 bool private_devices;
165 ProtectSystem protect_system;
166 ProtectHome protect_home;
168 bool no_new_privileges;
170 /* This is not exposed to the user but available
171 * internally. We need it to make sure that whenever we spawn
172 * /bin/mount it is run in the same process group as us so
173 * that the autofs logic detects that it belongs to us and we
174 * don't enter a trigger loop. */
177 unsigned long personality;
182 bool syscall_whitelist:1;
184 Set *address_families;
185 bool address_families_whitelist:1;
187 char **runtime_directory;
188 mode_t runtime_directory_mode;
190 bool oom_score_adjust_set:1;
193 bool cpu_sched_set:1;
194 bool no_new_privileges_set:1;
196 /* custom dbus enpoint */
197 BusEndpoint *bus_endpoint;
202 struct ExecParameters {
204 int *fds; unsigned n_fds;
206 bool apply_permissions;
208 bool apply_tty_stdin;
210 bool selinux_context_net;
211 CGroupControllerMask cgroup_supported;
212 const char *cgroup_path;
213 bool cgroup_delegate;
214 const char *runtime_prefix;
216 usec_t watchdog_usec;
218 char *bus_endpoint_path;
222 int exec_spawn(ExecCommand *command,
223 const ExecContext *context,
224 const ExecParameters *exec_params,
225 ExecRuntime *runtime,
228 void exec_command_done(ExecCommand *c);
229 void exec_command_done_array(ExecCommand *c, unsigned n);
231 ExecCommand* exec_command_free_list(ExecCommand *c);
232 void exec_command_free_array(ExecCommand **c, unsigned n);
234 char *exec_command_line(char **argv);
236 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
237 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
238 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
239 int exec_command_set(ExecCommand *c, const char *path, ...);
240 int exec_command_append(ExecCommand *c, const char *path, ...);
242 void exec_context_init(ExecContext *c);
243 void exec_context_done(ExecContext *c);
244 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
246 int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root);
248 int exec_context_load_environment(const ExecContext *c, const char *unit_id, char ***l);
250 bool exec_context_may_touch_console(ExecContext *c);
251 bool exec_context_maintains_privileges(ExecContext *c);
253 void exec_status_start(ExecStatus *s, pid_t pid);
254 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
255 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
257 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
258 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
259 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
261 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
262 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
264 void exec_runtime_destroy(ExecRuntime *rt);
266 const char* exec_output_to_string(ExecOutput i) _const_;
267 ExecOutput exec_output_from_string(const char *s) _pure_;
269 const char* exec_input_to_string(ExecInput i) _const_;
270 ExecInput exec_input_from_string(const char *s) _pure_;