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5cb5a6ff LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
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 | ||
29 | #include <sys/time.h> | |
30 | #include <sys/resource.h> | |
31 | #include <sys/capability.h> | |
32 | #include <stdbool.h> | |
33 | #include <stdio.h> | |
94f04347 | 34 | #include <sched.h> |
5cb5a6ff LP |
35 | |
36 | #include "list.h" | |
034c6ed7 | 37 | #include "util.h" |
5cb5a6ff | 38 | |
071830ff | 39 | /* Abstract namespace! */ |
ea430986 | 40 | #define LOGGER_SOCKET "/org/freedesktop.org/systemd1/logger" |
071830ff LP |
41 | |
42 | typedef enum ExecOutput { | |
94f04347 LP |
43 | EXEC_OUTPUT_CONSOLE, |
44 | EXEC_OUTPUT_NULL, | |
45 | EXEC_OUTPUT_SYSLOG, | |
46 | EXEC_OUTPUT_KERNEL, | |
47 | _EXEC_OUTPUT_MAX, | |
48 | _EXEC_OUTPUT_INVALID = -1 | |
071830ff LP |
49 | } ExecOutput; |
50 | ||
94f04347 LP |
51 | typedef enum ExecInput { |
52 | EXEC_INPUT_NULL, | |
53 | EXEC_INPUT_CONSOLE, | |
54 | _EXEC_INPUT_MAX, | |
55 | _EXEC_INPUT_INVALID = -1 | |
56 | } ExecInput; | |
57 | ||
5cb5a6ff LP |
58 | struct ExecStatus { |
59 | pid_t pid; | |
034c6ed7 | 60 | usec_t timestamp; |
9152c765 LP |
61 | int code; /* as in siginfo_t::si_code */ |
62 | int status; /* as in sigingo_t::si_status */ | |
5cb5a6ff LP |
63 | }; |
64 | ||
65 | struct ExecCommand { | |
66 | char *path; | |
67 | char **argv; | |
034c6ed7 LP |
68 | ExecStatus exec_status; |
69 | LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */ | |
5cb5a6ff LP |
70 | }; |
71 | ||
72 | struct ExecContext { | |
73 | char **environment; | |
74 | mode_t umask; | |
94f04347 | 75 | struct rlimit *rlimit[RLIMIT_NLIMITS]; |
9eba9da4 | 76 | char *working_directory, *root_directory; |
5cb5a6ff LP |
77 | int oom_adjust; |
78 | int nice; | |
9eba9da4 | 79 | int ioprio; |
94f04347 LP |
80 | int cpu_sched_policy; |
81 | int cpu_sched_priority; | |
82 | cpu_set_t cpu_affinity; | |
83 | unsigned long timer_slack_ns; | |
fb33a393 LP |
84 | |
85 | bool oom_adjust_set:1; | |
86 | bool nice_set:1; | |
9eba9da4 | 87 | bool ioprio_set:1; |
94f04347 LP |
88 | bool cpu_sched_set:1; |
89 | bool cpu_affinity_set:1; | |
90 | bool timer_slack_ns_set:1; | |
034c6ed7 | 91 | |
38b48754 | 92 | bool cpu_sched_reset_on_fork; |
451a074f | 93 | bool non_blocking; |
38b48754 | 94 | |
94f04347 | 95 | ExecInput input; |
071830ff LP |
96 | ExecOutput output; |
97 | int syslog_priority; | |
98 | char *syslog_identifier; | |
99 | ||
034c6ed7 | 100 | cap_t capabilities; |
94f04347 LP |
101 | int secure_bits; |
102 | uint64_t capability_bounding_set_drop; | |
5cb5a6ff | 103 | |
94f04347 | 104 | /* Since resolving these names might might involve socket |
5cb5a6ff | 105 | * connections and we don't want to deadlock ourselves these |
94f04347 LP |
106 | * names are resolved on execution only and in the child |
107 | * process. */ | |
5cb5a6ff LP |
108 | char *user; |
109 | char *group; | |
110 | char **supplementary_groups; | |
111 | }; | |
112 | ||
034c6ed7 LP |
113 | typedef enum ExitStatus { |
114 | /* EXIT_SUCCESS defined by libc */ | |
115 | /* EXIT_FAILURE defined by libc */ | |
116 | EXIT_INVALIDARGUMENT = 2, | |
117 | EXIT_NOTIMPLEMENTED = 3, | |
118 | EXIT_NOPERMISSION = 4, | |
119 | EXIT_NOTINSTALLED = 5, | |
120 | EXIT_NOTCONFIGURED = 6, | |
121 | EXIT_NOTRUNNING = 7, | |
122 | ||
123 | /* The LSB suggests that error codes >= 200 are "reserved". We | |
124 | * use them here under the assumption that they hence are | |
125 | * unused by init scripts. | |
126 | * | |
127 | * http://refspecs.freestandards.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html */ | |
128 | ||
129 | EXIT_CHDIR = 200, | |
130 | EXIT_NICE, | |
131 | EXIT_FDS, | |
132 | EXIT_EXEC, | |
133 | EXIT_MEMORY, | |
134 | EXIT_LIMITS, | |
309bff19 | 135 | EXIT_OOM_ADJUST, |
071830ff | 136 | EXIT_SIGNAL_MASK, |
94f04347 | 137 | EXIT_INPUT, |
9eba9da4 | 138 | EXIT_OUTPUT, |
81a2b7ce | 139 | EXIT_CHROOT, /* 210 */ |
9eba9da4 | 140 | EXIT_PGID, |
94f04347 LP |
141 | EXIT_IOPRIO, |
142 | EXIT_TIMERSLACK, | |
143 | EXIT_SECUREBITS, | |
144 | EXIT_SETSCHEDULER, | |
81a2b7ce LP |
145 | EXIT_CPUAFFINITY, |
146 | EXIT_GROUP, | |
147 | EXIT_USER, | |
148 | EXIT_CAPABILITIES | |
034c6ed7 LP |
149 | } ExitStatus; |
150 | ||
81a2b7ce LP |
151 | int exec_spawn(const ExecCommand *command, |
152 | const ExecContext *context, | |
153 | int *fds, unsigned n_fds, | |
154 | bool apply_permissions, | |
155 | bool apply_chroot, | |
156 | pid_t *ret); | |
5cb5a6ff | 157 | |
5cb5a6ff | 158 | void exec_command_free_list(ExecCommand *c); |
034c6ed7 | 159 | void exec_command_free_array(ExecCommand **c, unsigned n); |
5cb5a6ff | 160 | |
44d8db9e LP |
161 | char *exec_command_line(ExecCommand *c); |
162 | void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix); | |
163 | void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix); | |
a6a80b4f | 164 | void exec_command_append_list(ExecCommand **l, ExecCommand *e); |
44d8db9e | 165 | |
034c6ed7 LP |
166 | void exec_context_init(ExecContext *c); |
167 | void exec_context_done(ExecContext *c); | |
5cb5a6ff LP |
168 | void exec_context_dump(ExecContext *c, FILE* f, const char *prefix); |
169 | ||
034c6ed7 | 170 | void exec_status_fill(ExecStatus *s, pid_t pid, int code, int status); |
5cb5a6ff | 171 | |
94f04347 LP |
172 | const char* exec_output_to_string(ExecOutput i); |
173 | int exec_output_from_string(const char *s); | |
174 | ||
175 | const char* exec_input_to_string(ExecInput i); | |
176 | int exec_input_from_string(const char *s); | |
177 | ||
5cb5a6ff | 178 | #endif |