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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; |
5cb5a6ff | 28 | |
dacdf153 | 29 | #include <linux/types.h> |
5cb5a6ff LP |
30 | #include <sys/time.h> |
31 | #include <sys/resource.h> | |
32 | #include <sys/capability.h> | |
33 | #include <stdbool.h> | |
34 | #include <stdio.h> | |
94f04347 | 35 | #include <sched.h> |
c0467cf3 RC |
36 | #ifdef HAVE_SECCOMP |
37 | #include <seccomp.h> | |
38 | ||
39 | #include "set.h" | |
40 | #endif | |
5cb5a6ff LP |
41 | |
42 | #include "list.h" | |
034c6ed7 | 43 | #include "util.h" |
613b411c | 44 | #include "fdset.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 | ||
94f04347 | 100 | struct rlimit *rlimit[RLIMIT_NLIMITS]; |
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 | |
df1f0afe LP |
119 | char *tcpwrap_name; |
120 | ||
9d58f1db | 121 | char *tty_path; |
5cb5a6ff | 122 | |
6ea832a2 LP |
123 | bool tty_reset; |
124 | bool tty_vhangup; | |
125 | bool tty_vt_disallocate; | |
126 | ||
353e12c2 LP |
127 | bool ignore_sigpipe; |
128 | ||
94f04347 | 129 | /* Since resolving these names might might involve socket |
5cb5a6ff | 130 | * connections and we don't want to deadlock ourselves these |
94f04347 LP |
131 | * names are resolved on execution only and in the child |
132 | * process. */ | |
5cb5a6ff LP |
133 | char *user; |
134 | char *group; | |
135 | char **supplementary_groups; | |
9d58f1db | 136 | |
5b6319dc LP |
137 | char *pam_name; |
138 | ||
169c1bda LP |
139 | char *utmp_id; |
140 | ||
5f8640fb | 141 | bool selinux_context_ignore; |
7b52a628 MS |
142 | char *selinux_context; |
143 | ||
15ae422b LP |
144 | char **read_write_dirs, **read_only_dirs, **inaccessible_dirs; |
145 | unsigned long mount_flags; | |
146 | ||
9d58f1db LP |
147 | uint64_t capability_bounding_set_drop; |
148 | ||
149 | cap_t capabilities; | |
150 | int secure_bits; | |
151 | ||
7fab9d01 LP |
152 | int syslog_priority; |
153 | char *syslog_identifier; | |
154 | bool syslog_level_prefix; | |
155 | ||
9d58f1db LP |
156 | bool cpu_sched_reset_on_fork; |
157 | bool non_blocking; | |
15ae422b | 158 | bool private_tmp; |
ff01d048 | 159 | bool private_network; |
7f112f50 | 160 | bool private_devices; |
9d58f1db | 161 | |
8351ceae LP |
162 | bool no_new_privileges; |
163 | ||
9d58f1db LP |
164 | /* This is not exposed to the user but available |
165 | * internally. We need it to make sure that whenever we spawn | |
166 | * /bin/mount it is run in the same process group as us so | |
167 | * that the autofs logic detects that it belongs to us and we | |
168 | * don't enter a trigger loop. */ | |
74922904 | 169 | bool same_pgrp; |
2e22afe9 | 170 | |
ac45f971 LP |
171 | unsigned long personality; |
172 | ||
17df7223 | 173 | Set *syscall_filter; |
57183d11 | 174 | Set *syscall_archs; |
17df7223 LP |
175 | int syscall_errno; |
176 | bool syscall_whitelist:1; | |
8351ceae | 177 | |
dd6c17b1 | 178 | bool oom_score_adjust_set:1; |
7fab9d01 LP |
179 | bool nice_set:1; |
180 | bool ioprio_set:1; | |
181 | bool cpu_sched_set:1; | |
5cb5a6ff LP |
182 | }; |
183 | ||
4ad49000 LP |
184 | #include "cgroup.h" |
185 | ||
9fb86720 | 186 | int exec_spawn(ExecCommand *command, |
9e2f7c11 | 187 | char **argv, |
c17ec25e | 188 | ExecContext *context, |
c2748801 | 189 | int fds[], unsigned n_fds, |
1137a57c | 190 | char **environment, |
81a2b7ce LP |
191 | bool apply_permissions, |
192 | bool apply_chroot, | |
1e3ad081 | 193 | bool apply_tty_stdin, |
80876c20 | 194 | bool confirm_spawn, |
4ad49000 LP |
195 | CGroupControllerMask cgroup_mask, |
196 | const char *cgroup_path, | |
62bca2c6 | 197 | const char *unit_id, |
09812eb7 | 198 | usec_t watchdog_usec, |
f2b68789 | 199 | int pipe_fd[2], |
613b411c | 200 | ExecRuntime *runtime, |
81a2b7ce | 201 | pid_t *ret); |
5cb5a6ff | 202 | |
43d0fcbd LP |
203 | void exec_command_done(ExecCommand *c); |
204 | void exec_command_done_array(ExecCommand *c, unsigned n); | |
205 | ||
5cb5a6ff | 206 | void exec_command_free_list(ExecCommand *c); |
034c6ed7 | 207 | void exec_command_free_array(ExecCommand **c, unsigned n); |
5cb5a6ff | 208 | |
9e2f7c11 LP |
209 | char *exec_command_line(char **argv); |
210 | ||
44d8db9e LP |
211 | void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix); |
212 | void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix); | |
a6a80b4f | 213 | void exec_command_append_list(ExecCommand **l, ExecCommand *e); |
26fd040d | 214 | int exec_command_set(ExecCommand *c, const char *path, ...); |
44d8db9e | 215 | |
034c6ed7 | 216 | void exec_context_init(ExecContext *c); |
613b411c | 217 | void exec_context_done(ExecContext *c); |
5cb5a6ff LP |
218 | void exec_context_dump(ExecContext *c, FILE* f, const char *prefix); |
219 | ||
8c7be95e LP |
220 | int exec_context_load_environment(const ExecContext *c, char ***l); |
221 | ||
6ac8fdc9 MS |
222 | bool exec_context_may_touch_console(ExecContext *c); |
223 | ||
b58b4116 | 224 | void exec_status_start(ExecStatus *s, pid_t pid); |
6ea832a2 | 225 | void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status); |
9fb86720 | 226 | void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix); |
5cb5a6ff | 227 | |
613b411c LP |
228 | int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id); |
229 | ExecRuntime *exec_runtime_ref(ExecRuntime *r); | |
230 | ExecRuntime *exec_runtime_unref(ExecRuntime *r); | |
231 | ||
232 | int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds); | |
233 | int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds); | |
234 | ||
235 | void exec_runtime_destroy(ExecRuntime *rt); | |
236 | ||
44a6b1b6 ZJS |
237 | const char* exec_output_to_string(ExecOutput i) _const_; |
238 | ExecOutput exec_output_from_string(const char *s) _pure_; | |
94f04347 | 239 | |
44a6b1b6 ZJS |
240 | const char* exec_input_to_string(ExecInput i) _const_; |
241 | ExecInput exec_input_from_string(const char *s) _pure_; |