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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
c2f1db8f | 3 | #pragma once |
5cb5a6ff | 4 | |
a7334b09 LP |
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 | |
5430f7f2 LP |
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 | |
a7334b09 LP |
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 | |
5430f7f2 | 18 | Lesser General Public License for more details. |
a7334b09 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
5cb5a6ff LP |
24 | typedef struct ExecStatus ExecStatus; |
25 | typedef struct ExecCommand ExecCommand; | |
26 | typedef struct ExecContext ExecContext; | |
613b411c | 27 | typedef struct ExecRuntime ExecRuntime; |
9fa95f85 | 28 | typedef struct ExecParameters ExecParameters; |
5cb5a6ff | 29 | |
dacdf153 | 30 | #include <linux/types.h> |
5cb5a6ff LP |
31 | #include <sys/time.h> |
32 | #include <sys/resource.h> | |
33 | #include <sys/capability.h> | |
34 | #include <stdbool.h> | |
35 | #include <stdio.h> | |
94f04347 | 36 | #include <sched.h> |
5cb5a6ff LP |
37 | |
38 | #include "list.h" | |
034c6ed7 | 39 | #include "util.h" |
b64a3d86 | 40 | #include "set.h" |
613b411c | 41 | #include "fdset.h" |
517d56b1 | 42 | #include "missing.h" |
417116f2 | 43 | #include "namespace.h" |
bb7dd0b0 | 44 | #include "bus-endpoint.h" |
5cb5a6ff | 45 | |
80876c20 LP |
46 | typedef enum ExecInput { |
47 | EXEC_INPUT_NULL, | |
48 | EXEC_INPUT_TTY, | |
49 | EXEC_INPUT_TTY_FORCE, | |
50 | EXEC_INPUT_TTY_FAIL, | |
4f2d528d | 51 | EXEC_INPUT_SOCKET, |
80876c20 LP |
52 | _EXEC_INPUT_MAX, |
53 | _EXEC_INPUT_INVALID = -1 | |
54 | } ExecInput; | |
55 | ||
071830ff | 56 | typedef enum ExecOutput { |
80876c20 | 57 | EXEC_OUTPUT_INHERIT, |
94f04347 | 58 | EXEC_OUTPUT_NULL, |
80876c20 | 59 | EXEC_OUTPUT_TTY, |
94f04347 | 60 | EXEC_OUTPUT_SYSLOG, |
28dbc1e8 | 61 | EXEC_OUTPUT_SYSLOG_AND_CONSOLE, |
9a6bca7a | 62 | EXEC_OUTPUT_KMSG, |
28dbc1e8 | 63 | EXEC_OUTPUT_KMSG_AND_CONSOLE, |
706343f4 LP |
64 | EXEC_OUTPUT_JOURNAL, |
65 | EXEC_OUTPUT_JOURNAL_AND_CONSOLE, | |
4f2d528d | 66 | EXEC_OUTPUT_SOCKET, |
94f04347 LP |
67 | _EXEC_OUTPUT_MAX, |
68 | _EXEC_OUTPUT_INVALID = -1 | |
071830ff LP |
69 | } ExecOutput; |
70 | ||
5cb5a6ff | 71 | struct ExecStatus { |
63983207 LP |
72 | dual_timestamp start_timestamp; |
73 | dual_timestamp exit_timestamp; | |
9d58f1db | 74 | pid_t pid; |
9152c765 LP |
75 | int code; /* as in siginfo_t::si_code */ |
76 | int status; /* as in sigingo_t::si_status */ | |
5cb5a6ff LP |
77 | }; |
78 | ||
79 | struct ExecCommand { | |
80 | char *path; | |
81 | char **argv; | |
034c6ed7 LP |
82 | ExecStatus exec_status; |
83 | LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */ | |
7fab9d01 | 84 | bool ignore; |
5cb5a6ff LP |
85 | }; |
86 | ||
613b411c LP |
87 | struct ExecRuntime { |
88 | int n_ref; | |
89 | ||
90 | char *tmp_dir; | |
91 | char *var_tmp_dir; | |
92 | ||
93 | int netns_storage_socket[2]; | |
94 | }; | |
95 | ||
5cb5a6ff LP |
96 | struct ExecContext { |
97 | char **environment; | |
8c7be95e LP |
98 | char **environment_files; |
99 | ||
517d56b1 | 100 | struct rlimit *rlimit[_RLIMIT_MAX]; |
9eba9da4 | 101 | char *working_directory, *root_directory; |
9d58f1db LP |
102 | |
103 | mode_t umask; | |
dd6c17b1 | 104 | int oom_score_adjust; |
5cb5a6ff | 105 | int nice; |
9eba9da4 | 106 | int ioprio; |
94f04347 LP |
107 | int cpu_sched_policy; |
108 | int cpu_sched_priority; | |
9d58f1db | 109 | |
82c121a4 LP |
110 | cpu_set_t *cpuset; |
111 | unsigned cpuset_ncpus; | |
fb33a393 | 112 | |
80876c20 LP |
113 | ExecInput std_input; |
114 | ExecOutput std_output; | |
115 | ExecOutput std_error; | |
116 | ||
d88a251b | 117 | nsec_t timer_slack_nsec; |
071830ff | 118 | |
9d58f1db | 119 | char *tty_path; |
5cb5a6ff | 120 | |
6ea832a2 LP |
121 | bool tty_reset; |
122 | bool tty_vhangup; | |
123 | bool tty_vt_disallocate; | |
124 | ||
353e12c2 LP |
125 | bool ignore_sigpipe; |
126 | ||
94f04347 | 127 | /* Since resolving these names might might involve socket |
5cb5a6ff | 128 | * connections and we don't want to deadlock ourselves these |
94f04347 LP |
129 | * names are resolved on execution only and in the child |
130 | * process. */ | |
5cb5a6ff LP |
131 | char *user; |
132 | char *group; | |
133 | char **supplementary_groups; | |
9d58f1db | 134 | |
5b6319dc LP |
135 | char *pam_name; |
136 | ||
169c1bda LP |
137 | char *utmp_id; |
138 | ||
5f8640fb | 139 | bool selinux_context_ignore; |
7b52a628 MS |
140 | char *selinux_context; |
141 | ||
eef65bf3 MS |
142 | bool apparmor_profile_ignore; |
143 | char *apparmor_profile; | |
144 | ||
15ae422b LP |
145 | char **read_write_dirs, **read_only_dirs, **inaccessible_dirs; |
146 | unsigned long mount_flags; | |
147 | ||
9d58f1db LP |
148 | uint64_t capability_bounding_set_drop; |
149 | ||
150 | cap_t capabilities; | |
151 | int secure_bits; | |
152 | ||
7fab9d01 LP |
153 | int syslog_priority; |
154 | char *syslog_identifier; | |
155 | bool syslog_level_prefix; | |
156 | ||
9d58f1db LP |
157 | bool cpu_sched_reset_on_fork; |
158 | bool non_blocking; | |
15ae422b | 159 | bool private_tmp; |
ff01d048 | 160 | bool private_network; |
7f112f50 | 161 | bool private_devices; |
1b8689f9 LP |
162 | ProtectSystem protect_system; |
163 | ProtectHome protect_home; | |
9d58f1db | 164 | |
8351ceae LP |
165 | bool no_new_privileges; |
166 | ||
9d58f1db LP |
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. */ | |
74922904 | 172 | bool same_pgrp; |
2e22afe9 | 173 | |
ac45f971 LP |
174 | unsigned long personality; |
175 | ||
17df7223 | 176 | Set *syscall_filter; |
57183d11 | 177 | Set *syscall_archs; |
17df7223 LP |
178 | int syscall_errno; |
179 | bool syscall_whitelist:1; | |
8351ceae | 180 | |
4298d0b5 LP |
181 | Set *address_families; |
182 | bool address_families_whitelist:1; | |
183 | ||
e66cf1a3 LP |
184 | char **runtime_directory; |
185 | mode_t runtime_directory_mode; | |
186 | ||
dd6c17b1 | 187 | bool oom_score_adjust_set:1; |
7fab9d01 LP |
188 | bool nice_set:1; |
189 | bool ioprio_set:1; | |
190 | bool cpu_sched_set:1; | |
760b9d7c | 191 | bool no_new_privileges_set:1; |
bb7dd0b0 DM |
192 | |
193 | /* custom dbus enpoint */ | |
194 | BusEndpoint *bus_endpoint; | |
5cb5a6ff LP |
195 | }; |
196 | ||
4ad49000 LP |
197 | #include "cgroup.h" |
198 | ||
9fa95f85 DM |
199 | struct ExecParameters { |
200 | char **argv; | |
201 | int *fds; unsigned n_fds; | |
202 | char **environment; | |
203 | bool apply_permissions; | |
204 | bool apply_chroot; | |
205 | bool apply_tty_stdin; | |
206 | bool confirm_spawn; | |
16115b0a | 207 | bool selinux_context_net; |
9fa95f85 DM |
208 | CGroupControllerMask cgroup_supported; |
209 | const char *cgroup_path; | |
a931ad47 | 210 | bool cgroup_delegate; |
9fa95f85 DM |
211 | const char *runtime_prefix; |
212 | const char *unit_id; | |
213 | usec_t watchdog_usec; | |
214 | int *idle_pipe; | |
e44da745 DM |
215 | char *bus_endpoint_path; |
216 | int bus_endpoint_fd; | |
9fa95f85 DM |
217 | }; |
218 | ||
9fb86720 | 219 | int exec_spawn(ExecCommand *command, |
9fa95f85 DM |
220 | const ExecContext *context, |
221 | const ExecParameters *exec_params, | |
613b411c | 222 | ExecRuntime *runtime, |
81a2b7ce | 223 | pid_t *ret); |
5cb5a6ff | 224 | |
43d0fcbd LP |
225 | void exec_command_done(ExecCommand *c); |
226 | void exec_command_done_array(ExecCommand *c, unsigned n); | |
227 | ||
5cb5a6ff | 228 | void exec_command_free_list(ExecCommand *c); |
034c6ed7 | 229 | void exec_command_free_array(ExecCommand **c, unsigned n); |
5cb5a6ff | 230 | |
9e2f7c11 LP |
231 | char *exec_command_line(char **argv); |
232 | ||
44d8db9e LP |
233 | void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix); |
234 | void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix); | |
a6a80b4f | 235 | void exec_command_append_list(ExecCommand **l, ExecCommand *e); |
26fd040d | 236 | int exec_command_set(ExecCommand *c, const char *path, ...); |
86b23b07 | 237 | int exec_command_append(ExecCommand *c, const char *path, ...); |
44d8db9e | 238 | |
034c6ed7 | 239 | void exec_context_init(ExecContext *c); |
613b411c | 240 | void exec_context_done(ExecContext *c); |
5cb5a6ff LP |
241 | void exec_context_dump(ExecContext *c, FILE* f, const char *prefix); |
242 | ||
e66cf1a3 LP |
243 | int exec_context_destroy_runtime_directory(ExecContext *c, const char *runtime_root); |
244 | ||
7491ccf2 | 245 | int exec_context_load_environment(const ExecContext *c, const char *unit_id, char ***l); |
8c7be95e | 246 | |
6ac8fdc9 | 247 | bool exec_context_may_touch_console(ExecContext *c); |
a931ad47 | 248 | bool exec_context_maintains_privileges(ExecContext *c); |
6ac8fdc9 | 249 | |
b58b4116 | 250 | void exec_status_start(ExecStatus *s, pid_t pid); |
6ea832a2 | 251 | void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status); |
9fb86720 | 252 | void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix); |
5cb5a6ff | 253 | |
613b411c LP |
254 | int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id); |
255 | ExecRuntime *exec_runtime_ref(ExecRuntime *r); | |
256 | ExecRuntime *exec_runtime_unref(ExecRuntime *r); | |
257 | ||
258 | int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds); | |
259 | int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds); | |
260 | ||
261 | void exec_runtime_destroy(ExecRuntime *rt); | |
262 | ||
44a6b1b6 ZJS |
263 | const char* exec_output_to_string(ExecOutput i) _const_; |
264 | ExecOutput exec_output_from_string(const char *s) _pure_; | |
94f04347 | 265 | |
44a6b1b6 ZJS |
266 | const char* exec_input_to_string(ExecInput i) _const_; |
267 | ExecInput exec_input_from_string(const char *s) _pure_; |