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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff LP |
2 | |
3 | #ifndef fooexecutehfoo | |
4 | #define fooexecutehfoo | |
5 | ||
a7334b09 LP |
6 | /*** |
7 | This file is part of systemd. | |
8 | ||
9 | Copyright 2010 Lennart Poettering | |
10 | ||
11 | systemd is free software; you can redistribute it and/or modify it | |
12 | under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | systemd is distributed in the hope that it will be useful, but | |
17 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
23 | ***/ | |
24 | ||
5cb5a6ff LP |
25 | typedef struct ExecStatus ExecStatus; |
26 | typedef struct ExecCommand ExecCommand; | |
27 | typedef struct ExecContext ExecContext; | |
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> |
5cb5a6ff | 36 | |
8e274523 LP |
37 | struct CGroupBonding; |
38 | ||
5cb5a6ff | 39 | #include "list.h" |
034c6ed7 | 40 | #include "util.h" |
5cb5a6ff | 41 | |
2b583ce6 | 42 | #define LOGGER_SOCKET "/run/systemd/logger" |
071830ff | 43 | |
2e22afe9 LP |
44 | typedef enum KillMode { |
45 | KILL_CONTROL_GROUP = 0, | |
2e22afe9 LP |
46 | KILL_PROCESS, |
47 | KILL_NONE, | |
48 | _KILL_MODE_MAX, | |
49 | _KILL_MODE_INVALID = -1 | |
50 | } KillMode; | |
51 | ||
8a0867d6 LP |
52 | typedef enum KillWho { |
53 | KILL_MAIN, | |
54 | KILL_CONTROL, | |
55 | KILL_ALL, | |
56 | _KILL_WHO_MAX, | |
57 | _KILL_WHO_INVALID = -1 | |
58 | } KillWho; | |
59 | ||
80876c20 LP |
60 | typedef enum ExecInput { |
61 | EXEC_INPUT_NULL, | |
62 | EXEC_INPUT_TTY, | |
63 | EXEC_INPUT_TTY_FORCE, | |
64 | EXEC_INPUT_TTY_FAIL, | |
4f2d528d | 65 | EXEC_INPUT_SOCKET, |
80876c20 LP |
66 | _EXEC_INPUT_MAX, |
67 | _EXEC_INPUT_INVALID = -1 | |
68 | } ExecInput; | |
69 | ||
071830ff | 70 | typedef enum ExecOutput { |
80876c20 | 71 | EXEC_OUTPUT_INHERIT, |
94f04347 | 72 | EXEC_OUTPUT_NULL, |
80876c20 | 73 | EXEC_OUTPUT_TTY, |
94f04347 | 74 | EXEC_OUTPUT_SYSLOG, |
28dbc1e8 | 75 | EXEC_OUTPUT_SYSLOG_AND_CONSOLE, |
9a6bca7a | 76 | EXEC_OUTPUT_KMSG, |
28dbc1e8 | 77 | EXEC_OUTPUT_KMSG_AND_CONSOLE, |
4f2d528d | 78 | EXEC_OUTPUT_SOCKET, |
94f04347 LP |
79 | _EXEC_OUTPUT_MAX, |
80 | _EXEC_OUTPUT_INVALID = -1 | |
071830ff LP |
81 | } ExecOutput; |
82 | ||
5cb5a6ff | 83 | struct ExecStatus { |
63983207 LP |
84 | dual_timestamp start_timestamp; |
85 | dual_timestamp exit_timestamp; | |
9d58f1db | 86 | pid_t pid; |
9152c765 LP |
87 | int code; /* as in siginfo_t::si_code */ |
88 | int status; /* as in sigingo_t::si_status */ | |
5cb5a6ff LP |
89 | }; |
90 | ||
91 | struct ExecCommand { | |
92 | char *path; | |
93 | char **argv; | |
034c6ed7 LP |
94 | ExecStatus exec_status; |
95 | LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */ | |
7fab9d01 | 96 | bool ignore; |
5cb5a6ff LP |
97 | }; |
98 | ||
99 | struct ExecContext { | |
100 | char **environment; | |
8c7be95e LP |
101 | char **environment_files; |
102 | ||
94f04347 | 103 | struct rlimit *rlimit[RLIMIT_NLIMITS]; |
9eba9da4 | 104 | char *working_directory, *root_directory; |
9d58f1db LP |
105 | |
106 | mode_t umask; | |
dd6c17b1 | 107 | int oom_score_adjust; |
5cb5a6ff | 108 | int nice; |
9eba9da4 | 109 | int ioprio; |
94f04347 LP |
110 | int cpu_sched_policy; |
111 | int cpu_sched_priority; | |
9d58f1db | 112 | |
82c121a4 LP |
113 | cpu_set_t *cpuset; |
114 | unsigned cpuset_ncpus; | |
fb33a393 | 115 | |
80876c20 LP |
116 | ExecInput std_input; |
117 | ExecOutput std_output; | |
118 | ExecOutput std_error; | |
119 | ||
7fab9d01 | 120 | unsigned long timer_slack_nsec; |
071830ff | 121 | |
df1f0afe LP |
122 | char *tcpwrap_name; |
123 | ||
9d58f1db | 124 | char *tty_path; |
5cb5a6ff | 125 | |
6ea832a2 LP |
126 | bool tty_reset; |
127 | bool tty_vhangup; | |
128 | bool tty_vt_disallocate; | |
129 | ||
94f04347 | 130 | /* Since resolving these names might might involve socket |
5cb5a6ff | 131 | * connections and we don't want to deadlock ourselves these |
94f04347 LP |
132 | * names are resolved on execution only and in the child |
133 | * process. */ | |
5cb5a6ff LP |
134 | char *user; |
135 | char *group; | |
136 | char **supplementary_groups; | |
9d58f1db | 137 | |
5b6319dc LP |
138 | char *pam_name; |
139 | ||
169c1bda LP |
140 | char *utmp_id; |
141 | ||
15ae422b LP |
142 | char **read_write_dirs, **read_only_dirs, **inaccessible_dirs; |
143 | unsigned long mount_flags; | |
144 | ||
9d58f1db LP |
145 | uint64_t capability_bounding_set_drop; |
146 | ||
7fab9d01 LP |
147 | /* Not relevant for spawning processes, just for killing */ |
148 | KillMode kill_mode; | |
149 | int kill_signal; | |
ba035df2 | 150 | bool send_sigkill; |
7fab9d01 | 151 | |
9d58f1db LP |
152 | cap_t capabilities; |
153 | int secure_bits; | |
154 | ||
7fab9d01 LP |
155 | int syslog_priority; |
156 | char *syslog_identifier; | |
157 | bool syslog_level_prefix; | |
158 | ||
9d58f1db LP |
159 | bool cpu_sched_reset_on_fork; |
160 | bool non_blocking; | |
15ae422b | 161 | bool private_tmp; |
ff01d048 | 162 | bool private_network; |
9d58f1db | 163 | |
64747e2d LP |
164 | bool control_group_modify; |
165 | ||
9d58f1db LP |
166 | /* This is not exposed to the user but available |
167 | * internally. We need it to make sure that whenever we spawn | |
168 | * /bin/mount it is run in the same process group as us so | |
169 | * that the autofs logic detects that it belongs to us and we | |
170 | * don't enter a trigger loop. */ | |
74922904 | 171 | bool same_pgrp; |
2e22afe9 | 172 | |
dd6c17b1 | 173 | bool oom_score_adjust_set:1; |
7fab9d01 LP |
174 | bool nice_set:1; |
175 | bool ioprio_set:1; | |
176 | bool cpu_sched_set:1; | |
177 | bool timer_slack_nsec_set:1; | |
5cb5a6ff LP |
178 | }; |
179 | ||
9fb86720 | 180 | int exec_spawn(ExecCommand *command, |
9e2f7c11 | 181 | char **argv, |
81a2b7ce | 182 | const ExecContext *context, |
c2748801 | 183 | int fds[], unsigned n_fds, |
1137a57c | 184 | char **environment, |
81a2b7ce LP |
185 | bool apply_permissions, |
186 | bool apply_chroot, | |
1e3ad081 | 187 | bool apply_tty_stdin, |
80876c20 | 188 | bool confirm_spawn, |
8e274523 | 189 | struct CGroupBonding *cgroup_bondings, |
81a2b7ce | 190 | pid_t *ret); |
5cb5a6ff | 191 | |
43d0fcbd LP |
192 | void exec_command_done(ExecCommand *c); |
193 | void exec_command_done_array(ExecCommand *c, unsigned n); | |
194 | ||
5cb5a6ff | 195 | void exec_command_free_list(ExecCommand *c); |
034c6ed7 | 196 | void exec_command_free_array(ExecCommand **c, unsigned n); |
5cb5a6ff | 197 | |
9e2f7c11 LP |
198 | char *exec_command_line(char **argv); |
199 | ||
44d8db9e LP |
200 | void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix); |
201 | void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix); | |
a6a80b4f | 202 | void exec_command_append_list(ExecCommand **l, ExecCommand *e); |
26fd040d | 203 | int exec_command_set(ExecCommand *c, const char *path, ...); |
44d8db9e | 204 | |
034c6ed7 LP |
205 | void exec_context_init(ExecContext *c); |
206 | void exec_context_done(ExecContext *c); | |
5cb5a6ff | 207 | void exec_context_dump(ExecContext *c, FILE* f, const char *prefix); |
6ea832a2 | 208 | void exec_context_tty_reset(const ExecContext *context); |
5cb5a6ff | 209 | |
8c7be95e LP |
210 | int exec_context_load_environment(const ExecContext *c, char ***l); |
211 | ||
b58b4116 | 212 | void exec_status_start(ExecStatus *s, pid_t pid); |
6ea832a2 | 213 | void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status); |
9fb86720 | 214 | void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix); |
5cb5a6ff | 215 | |
94f04347 | 216 | const char* exec_output_to_string(ExecOutput i); |
1365b53f | 217 | ExecOutput exec_output_from_string(const char *s); |
94f04347 LP |
218 | |
219 | const char* exec_input_to_string(ExecInput i); | |
1365b53f | 220 | ExecInput exec_input_from_string(const char *s); |
94f04347 | 221 | |
8a0867d6 LP |
222 | const char *kill_mode_to_string(KillMode k); |
223 | KillMode kill_mode_from_string(const char *s); | |
224 | ||
225 | const char *kill_who_to_string(KillWho k); | |
226 | KillWho kill_who_from_string(const char *s); | |
227 | ||
5cb5a6ff | 228 | #endif |