]>
Commit | Line | Data |
---|---|---|
663996b3 MS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | #pragma once | |
4 | ||
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
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. | |
14 | ||
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. | |
19 | ||
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/>. | |
22 | ***/ | |
23 | ||
24 | typedef struct ExecStatus ExecStatus; | |
25 | typedef struct ExecCommand ExecCommand; | |
26 | typedef struct ExecContext ExecContext; | |
60f067b4 | 27 | typedef struct ExecRuntime ExecRuntime; |
5eef597e | 28 | typedef struct ExecParameters ExecParameters; |
663996b3 | 29 | |
663996b3 MS |
30 | #include <sys/capability.h> |
31 | #include <stdbool.h> | |
32 | #include <stdio.h> | |
33 | #include <sched.h> | |
34 | ||
663996b3 | 35 | #include "list.h" |
60f067b4 JS |
36 | #include "fdset.h" |
37 | #include "missing.h" | |
38 | #include "namespace.h" | |
5eef597e | 39 | #include "bus-endpoint.h" |
14228c0d | 40 | |
13d276d0 MP |
41 | typedef enum ExecUtmpMode { |
42 | EXEC_UTMP_INIT, | |
43 | EXEC_UTMP_LOGIN, | |
44 | EXEC_UTMP_USER, | |
45 | _EXEC_UTMP_MODE_MAX, | |
46 | _EXEC_UTMP_MODE_INVALID = -1 | |
47 | } ExecUtmpMode; | |
48 | ||
663996b3 MS |
49 | typedef enum ExecInput { |
50 | EXEC_INPUT_NULL, | |
51 | EXEC_INPUT_TTY, | |
52 | EXEC_INPUT_TTY_FORCE, | |
53 | EXEC_INPUT_TTY_FAIL, | |
54 | EXEC_INPUT_SOCKET, | |
55 | _EXEC_INPUT_MAX, | |
56 | _EXEC_INPUT_INVALID = -1 | |
57 | } ExecInput; | |
58 | ||
59 | typedef enum ExecOutput { | |
60 | EXEC_OUTPUT_INHERIT, | |
61 | EXEC_OUTPUT_NULL, | |
62 | EXEC_OUTPUT_TTY, | |
63 | EXEC_OUTPUT_SYSLOG, | |
64 | EXEC_OUTPUT_SYSLOG_AND_CONSOLE, | |
65 | EXEC_OUTPUT_KMSG, | |
66 | EXEC_OUTPUT_KMSG_AND_CONSOLE, | |
67 | EXEC_OUTPUT_JOURNAL, | |
68 | EXEC_OUTPUT_JOURNAL_AND_CONSOLE, | |
69 | EXEC_OUTPUT_SOCKET, | |
70 | _EXEC_OUTPUT_MAX, | |
71 | _EXEC_OUTPUT_INVALID = -1 | |
72 | } ExecOutput; | |
73 | ||
74 | struct ExecStatus { | |
75 | dual_timestamp start_timestamp; | |
76 | dual_timestamp exit_timestamp; | |
77 | pid_t pid; | |
78 | int code; /* as in siginfo_t::si_code */ | |
79 | int status; /* as in sigingo_t::si_status */ | |
80 | }; | |
81 | ||
82 | struct ExecCommand { | |
83 | char *path; | |
84 | char **argv; | |
85 | ExecStatus exec_status; | |
86 | LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */ | |
87 | bool ignore; | |
88 | }; | |
89 | ||
60f067b4 JS |
90 | struct ExecRuntime { |
91 | int n_ref; | |
92 | ||
93 | char *tmp_dir; | |
94 | char *var_tmp_dir; | |
95 | ||
96 | int netns_storage_socket[2]; | |
97 | }; | |
98 | ||
663996b3 MS |
99 | struct ExecContext { |
100 | char **environment; | |
101 | char **environment_files; | |
db2df898 | 102 | char **pass_environment; |
663996b3 | 103 | |
60f067b4 | 104 | struct rlimit *rlimit[_RLIMIT_MAX]; |
663996b3 | 105 | char *working_directory, *root_directory; |
e735f4d4 | 106 | bool working_directory_missing_ok; |
6300502b | 107 | bool working_directory_home; |
663996b3 MS |
108 | |
109 | mode_t umask; | |
110 | int oom_score_adjust; | |
111 | int nice; | |
112 | int ioprio; | |
113 | int cpu_sched_policy; | |
114 | int cpu_sched_priority; | |
115 | ||
116 | cpu_set_t *cpuset; | |
117 | unsigned cpuset_ncpus; | |
118 | ||
119 | ExecInput std_input; | |
120 | ExecOutput std_output; | |
121 | ExecOutput std_error; | |
122 | ||
123 | nsec_t timer_slack_nsec; | |
124 | ||
663996b3 MS |
125 | char *tty_path; |
126 | ||
127 | bool tty_reset; | |
128 | bool tty_vhangup; | |
129 | bool tty_vt_disallocate; | |
130 | ||
131 | bool ignore_sigpipe; | |
132 | ||
133 | /* Since resolving these names might might involve socket | |
134 | * connections and we don't want to deadlock ourselves these | |
135 | * names are resolved on execution only and in the child | |
136 | * process. */ | |
137 | char *user; | |
138 | char *group; | |
139 | char **supplementary_groups; | |
140 | ||
141 | char *pam_name; | |
142 | ||
143 | char *utmp_id; | |
13d276d0 | 144 | ExecUtmpMode utmp_mode; |
663996b3 | 145 | |
60f067b4 JS |
146 | bool selinux_context_ignore; |
147 | char *selinux_context; | |
148 | ||
149 | bool apparmor_profile_ignore; | |
150 | char *apparmor_profile; | |
151 | ||
f47781d8 MP |
152 | bool smack_process_label_ignore; |
153 | char *smack_process_label; | |
154 | ||
663996b3 MS |
155 | char **read_write_dirs, **read_only_dirs, **inaccessible_dirs; |
156 | unsigned long mount_flags; | |
157 | ||
158 | uint64_t capability_bounding_set_drop; | |
159 | ||
160 | cap_t capabilities; | |
161 | int secure_bits; | |
162 | ||
163 | int syslog_priority; | |
164 | char *syslog_identifier; | |
165 | bool syslog_level_prefix; | |
166 | ||
167 | bool cpu_sched_reset_on_fork; | |
168 | bool non_blocking; | |
169 | bool private_tmp; | |
170 | bool private_network; | |
60f067b4 JS |
171 | bool private_devices; |
172 | ProtectSystem protect_system; | |
173 | ProtectHome protect_home; | |
663996b3 MS |
174 | |
175 | bool no_new_privileges; | |
176 | ||
663996b3 MS |
177 | /* This is not exposed to the user but available |
178 | * internally. We need it to make sure that whenever we spawn | |
e3bff60a | 179 | * /usr/bin/mount it is run in the same process group as us so |
663996b3 MS |
180 | * that the autofs logic detects that it belongs to us and we |
181 | * don't enter a trigger loop. */ | |
182 | bool same_pgrp; | |
183 | ||
60f067b4 JS |
184 | unsigned long personality; |
185 | ||
186 | Set *syscall_filter; | |
187 | Set *syscall_archs; | |
188 | int syscall_errno; | |
189 | bool syscall_whitelist:1; | |
190 | ||
191 | Set *address_families; | |
192 | bool address_families_whitelist:1; | |
193 | ||
194 | char **runtime_directory; | |
195 | mode_t runtime_directory_mode; | |
663996b3 MS |
196 | |
197 | bool oom_score_adjust_set:1; | |
198 | bool nice_set:1; | |
199 | bool ioprio_set:1; | |
200 | bool cpu_sched_set:1; | |
60f067b4 | 201 | bool no_new_privileges_set:1; |
5eef597e MP |
202 | |
203 | /* custom dbus enpoint */ | |
204 | BusEndpoint *bus_endpoint; | |
663996b3 MS |
205 | }; |
206 | ||
14228c0d | 207 | #include "cgroup.h" |
e735f4d4 | 208 | #include "cgroup-util.h" |
14228c0d | 209 | |
5eef597e MP |
210 | struct ExecParameters { |
211 | char **argv; | |
db2df898 | 212 | char **environment; |
6300502b MP |
213 | |
214 | int *fds; | |
215 | char **fd_names; | |
216 | unsigned n_fds; | |
217 | ||
db2df898 MP |
218 | bool apply_permissions:1; |
219 | bool apply_chroot:1; | |
220 | bool apply_tty_stdin:1; | |
6300502b | 221 | |
db2df898 MP |
222 | bool confirm_spawn:1; |
223 | bool selinux_context_net:1; | |
6300502b | 224 | |
db2df898 | 225 | bool cgroup_delegate:1; |
d9dfd233 | 226 | CGroupMask cgroup_supported; |
5eef597e | 227 | const char *cgroup_path; |
6300502b | 228 | |
5eef597e | 229 | const char *runtime_prefix; |
6300502b | 230 | |
5eef597e | 231 | usec_t watchdog_usec; |
6300502b | 232 | |
5eef597e | 233 | int *idle_pipe; |
6300502b | 234 | |
5eef597e MP |
235 | char *bus_endpoint_path; |
236 | int bus_endpoint_fd; | |
db2df898 MP |
237 | |
238 | int stdin_fd; | |
239 | int stdout_fd; | |
240 | int stderr_fd; | |
5eef597e MP |
241 | }; |
242 | ||
e3bff60a MP |
243 | int exec_spawn(Unit *unit, |
244 | ExecCommand *command, | |
5eef597e MP |
245 | const ExecContext *context, |
246 | const ExecParameters *exec_params, | |
60f067b4 | 247 | ExecRuntime *runtime, |
663996b3 MS |
248 | pid_t *ret); |
249 | ||
250 | void exec_command_done(ExecCommand *c); | |
251 | void exec_command_done_array(ExecCommand *c, unsigned n); | |
252 | ||
e735f4d4 | 253 | ExecCommand* exec_command_free_list(ExecCommand *c); |
663996b3 MS |
254 | void exec_command_free_array(ExecCommand **c, unsigned n); |
255 | ||
256 | char *exec_command_line(char **argv); | |
257 | ||
258 | void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix); | |
259 | void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix); | |
260 | void exec_command_append_list(ExecCommand **l, ExecCommand *e); | |
261 | int exec_command_set(ExecCommand *c, const char *path, ...); | |
5eef597e | 262 | int exec_command_append(ExecCommand *c, const char *path, ...); |
663996b3 MS |
263 | |
264 | void exec_context_init(ExecContext *c); | |
60f067b4 | 265 | void exec_context_done(ExecContext *c); |
663996b3 | 266 | void exec_context_dump(ExecContext *c, FILE* f, const char *prefix); |
60f067b4 JS |
267 | |
268 | int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root); | |
663996b3 | 269 | |
e3bff60a | 270 | int exec_context_load_environment(Unit *unit, const ExecContext *c, char ***l); |
663996b3 MS |
271 | |
272 | bool exec_context_may_touch_console(ExecContext *c); | |
f47781d8 | 273 | bool exec_context_maintains_privileges(ExecContext *c); |
663996b3 MS |
274 | |
275 | void exec_status_start(ExecStatus *s, pid_t pid); | |
276 | void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status); | |
277 | void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix); | |
278 | ||
60f067b4 JS |
279 | int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id); |
280 | ExecRuntime *exec_runtime_ref(ExecRuntime *r); | |
281 | ExecRuntime *exec_runtime_unref(ExecRuntime *r); | |
282 | ||
e3bff60a MP |
283 | int exec_runtime_serialize(Unit *unit, ExecRuntime *rt, FILE *f, FDSet *fds); |
284 | int exec_runtime_deserialize_item(Unit *unit, ExecRuntime **rt, const char *key, const char *value, FDSet *fds); | |
60f067b4 JS |
285 | |
286 | void exec_runtime_destroy(ExecRuntime *rt); | |
287 | ||
663996b3 MS |
288 | const char* exec_output_to_string(ExecOutput i) _const_; |
289 | ExecOutput exec_output_from_string(const char *s) _pure_; | |
290 | ||
291 | const char* exec_input_to_string(ExecInput i) _const_; | |
292 | ExecInput exec_input_from_string(const char *s) _pure_; | |
13d276d0 MP |
293 | |
294 | const char* exec_utmp_mode_to_string(ExecUtmpMode i) _const_; | |
295 | ExecUtmpMode exec_utmp_mode_from_string(const char *s) _pure_; |