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>
42 #include "namespace.h"
44 typedef enum ExecInput {
51 _EXEC_INPUT_INVALID = -1
54 typedef enum ExecOutput {
59 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
61 EXEC_OUTPUT_KMSG_AND_CONSOLE,
63 EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
66 _EXEC_OUTPUT_INVALID = -1
70 dual_timestamp start_timestamp;
71 dual_timestamp exit_timestamp;
73 int code; /* as in siginfo_t::si_code */
74 int status; /* as in sigingo_t::si_status */
80 ExecStatus exec_status;
81 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
91 int netns_storage_socket[2];
96 char **environment_files;
98 struct rlimit *rlimit[_RLIMIT_MAX];
99 char *working_directory, *root_directory;
102 int oom_score_adjust;
105 int cpu_sched_policy;
106 int cpu_sched_priority;
109 unsigned cpuset_ncpus;
112 ExecOutput std_output;
113 ExecOutput std_error;
115 nsec_t timer_slack_nsec;
121 bool tty_vt_disallocate;
125 /* Since resolving these names might might involve socket
126 * connections and we don't want to deadlock ourselves these
127 * names are resolved on execution only and in the child
131 char **supplementary_groups;
137 bool selinux_context_ignore;
138 char *selinux_context;
140 bool apparmor_profile_ignore;
141 char *apparmor_profile;
143 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
144 unsigned long mount_flags;
146 uint64_t capability_bounding_set_drop;
152 char *syslog_identifier;
153 bool syslog_level_prefix;
155 bool cpu_sched_reset_on_fork;
158 bool private_network;
159 bool private_devices;
160 ProtectSystem protect_system;
161 ProtectHome protect_home;
163 bool no_new_privileges;
165 /* This is not exposed to the user but available
166 * internally. We need it to make sure that whenever we spawn
167 * /bin/mount it is run in the same process group as us so
168 * that the autofs logic detects that it belongs to us and we
169 * don't enter a trigger loop. */
172 unsigned long personality;
177 bool syscall_whitelist:1;
179 Set *address_families;
180 bool address_families_whitelist:1;
182 char **runtime_directory;
183 mode_t runtime_directory_mode;
185 bool oom_score_adjust_set:1;
188 bool cpu_sched_set:1;
189 bool no_new_privileges_set:1;
194 int exec_spawn(ExecCommand *command,
196 ExecContext *context,
197 int fds[], unsigned n_fds,
199 bool apply_permissions,
201 bool apply_tty_stdin,
203 CGroupControllerMask cgroup_mask,
204 const char *cgroup_path,
205 const char *runtime_prefix,
207 usec_t watchdog_usec,
209 ExecRuntime *runtime,
212 void exec_command_done(ExecCommand *c);
213 void exec_command_done_array(ExecCommand *c, unsigned n);
215 void exec_command_free_list(ExecCommand *c);
216 void exec_command_free_array(ExecCommand **c, unsigned n);
218 char *exec_command_line(char **argv);
220 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
221 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
222 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
223 int exec_command_set(ExecCommand *c, const char *path, ...);
225 void exec_context_init(ExecContext *c);
226 void exec_context_done(ExecContext *c);
227 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
229 int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root);
231 int exec_context_load_environment(const ExecContext *c, char ***l);
233 bool exec_context_may_touch_console(ExecContext *c);
235 void exec_status_start(ExecStatus *s, pid_t pid);
236 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
237 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
239 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
240 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
241 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
243 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
244 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
246 void exec_runtime_destroy(ExecRuntime *rt);
248 const char* exec_output_to_string(ExecOutput i) _const_;
249 ExecOutput exec_output_from_string(const char *s) _pure_;
251 const char* exec_input_to_string(ExecInput i) _const_;
252 ExecInput exec_input_from_string(const char *s) _pure_;