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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
8c6db833 | 2 | |
c2f1db8f | 3 | #pragma once |
8c6db833 LP |
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 | |
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 | |
8c6db833 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. |
8c6db833 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
8c6db833 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
24 | #include <sys/types.h> | |
c6c18be3 | 25 | #include <stdio.h> |
35d2e7ec | 26 | #include <dirent.h> |
c6c18be3 LP |
27 | |
28 | #include "set.h" | |
f6a6225e | 29 | #include "def.h" |
8c6db833 | 30 | |
4ad49000 LP |
31 | /* A bit mask of well known cgroup controllers */ |
32 | typedef enum CGroupControllerMask { | |
33 | CGROUP_CPU = 1, | |
34 | CGROUP_CPUACCT = 2, | |
35 | CGROUP_BLKIO = 4, | |
36 | CGROUP_MEMORY = 8, | |
37 | CGROUP_DEVICE = 16 | |
38 | } CGroupControllerMask; | |
39 | ||
5954c074 LP |
40 | /* |
41 | * General rules: | |
42 | * | |
43 | * We accept named hierarchies in the syntax "foo" and "name=foo". | |
44 | * | |
45 | * We expect that named hierarchies do not conflict in name with a | |
46 | * kernel hierarchy, modulo the "name=" prefix. | |
47 | * | |
48 | * We always generate "normalized" controller names, i.e. without the | |
49 | * "name=" prefix. | |
50 | * | |
51 | * We require absolute cgroup paths. When returning, we will always | |
52 | * generate paths with multiple adjacent / removed. | |
53 | */ | |
54 | ||
c6c18be3 | 55 | int cg_enumerate_processes(const char *controller, const char *path, FILE **_f); |
c6c18be3 LP |
56 | int cg_read_pid(FILE *f, pid_t *_pid); |
57 | ||
35d2e7ec LP |
58 | int cg_enumerate_subgroups(const char *controller, const char *path, DIR **_d); |
59 | int cg_read_subgroup(DIR *d, char **fn); | |
60 | ||
430c18ed LP |
61 | int cg_kill(const char *controller, const char *path, int sig, bool sigcont, bool ignore_self, Set *s); |
62 | int cg_kill_recursive(const char *controller, const char *path, int sig, bool sigcont, bool ignore_self, bool remove, Set *s); | |
8c6db833 | 63 | |
246aa6dd LP |
64 | int cg_migrate(const char *cfrom, const char *pfrom, const char *cto, const char *pto, bool ignore_self); |
65 | int cg_migrate_recursive(const char *cfrom, const char *pfrom, const char *cto, const char *pto, bool ignore_self, bool remove); | |
13b84ec7 | 66 | int cg_migrate_recursive_fallback(const char *cfrom, const char *pfrom, const char *cto, const char *pto, bool ignore_self, bool rem); |
35d2e7ec LP |
67 | |
68 | int cg_split_spec(const char *spec, char **controller, char **path); | |
7027ff61 | 69 | int cg_mangle_path(const char *path, char **result); |
8c6db833 LP |
70 | |
71 | int cg_get_path(const char *controller, const char *path, const char *suffix, char **fs); | |
3474ae3c | 72 | int cg_get_path_and_check(const char *controller, const char *path, const char *suffix, char **fs); |
7027ff61 LP |
73 | |
74 | int cg_pid_get_path(const char *controller, pid_t pid, char **path); | |
8c6db833 LP |
75 | |
76 | int cg_trim(const char *controller, const char *path, bool delete_root); | |
35d2e7ec | 77 | |
4ad49000 | 78 | int cg_rmdir(const char *controller, const char *path); |
8c6db833 LP |
79 | int cg_delete(const char *controller, const char *path); |
80 | ||
4ad49000 | 81 | int cg_create(const char *controller, const char *path); |
8c6db833 | 82 | int cg_attach(const char *controller, const char *path, pid_t pid); |
13b84ec7 | 83 | int cg_attach_fallback(const char *controller, const char *path, pid_t pid); |
8c6db833 LP |
84 | int cg_create_and_attach(const char *controller, const char *path, pid_t pid); |
85 | ||
4ad49000 LP |
86 | int cg_set_attribute(const char *controller, const char *path, const char *attribute, const char *value); |
87 | ||
8c6db833 | 88 | int cg_set_group_access(const char *controller, const char *path, mode_t mode, uid_t uid, gid_t gid); |
4ad49000 | 89 | int cg_set_task_access(const char *controller, const char *path, mode_t mode, uid_t uid, gid_t gid); |
8c6db833 LP |
90 | |
91 | int cg_install_release_agent(const char *controller, const char *agent); | |
ad929bcc | 92 | int cg_uninstall_release_agent(const char *controller); |
8c6db833 LP |
93 | |
94 | int cg_is_empty(const char *controller, const char *path, bool ignore_self); | |
95 | int cg_is_empty_recursive(const char *controller, const char *path, bool ignore_self); | |
96 | ||
7027ff61 | 97 | int cg_get_root_path(char **path); |
6c03089c | 98 | |
7027ff61 | 99 | int cg_path_get_session(const char *path, char **session); |
ae018d9b | 100 | int cg_path_get_owner_uid(const char *path, uid_t *uid); |
6c03089c LP |
101 | int cg_path_get_unit(const char *path, char **unit); |
102 | int cg_path_get_user_unit(const char *path, char **unit); | |
7027ff61 | 103 | int cg_path_get_machine_name(const char *path, char **machine); |
1021b21b | 104 | int cg_path_get_slice(const char *path, char **slice); |
7027ff61 | 105 | |
751bc6ac | 106 | int cg_shift_path(const char *cgroup, const char *cached_root, const char **shifted); |
e9174f29 | 107 | int cg_pid_get_path_shifted(pid_t pid, const char *cached_root, char **cgroup); |
6c03089c | 108 | |
7027ff61 | 109 | int cg_pid_get_session(pid_t pid, char **session); |
ae018d9b | 110 | int cg_pid_get_owner_uid(pid_t pid, uid_t *uid); |
ba1261bc | 111 | int cg_pid_get_unit(pid_t pid, char **unit); |
ef1673d1 | 112 | int cg_pid_get_user_unit(pid_t pid, char **unit); |
7027ff61 | 113 | int cg_pid_get_machine_name(pid_t pid, char **machine); |
1021b21b | 114 | int cg_pid_get_slice(pid_t pid, char **slice); |
1f73f0f1 | 115 | |
7027ff61 | 116 | int cg_path_decode_unit(const char *cgroup, char **unit); |
96cde13a | 117 | |
ae018d9b | 118 | char *cg_escape(const char *p); |
44a6b1b6 | 119 | char *cg_unescape(const char *p) _pure_; |
78edb35a LP |
120 | |
121 | bool cg_controller_is_valid(const char *p, bool allow_named); | |
a016b922 LP |
122 | |
123 | int cg_slice_to_path(const char *unit, char **ret); | |
4ad49000 | 124 | |
13b84ec7 LP |
125 | int cg_create_everywhere(CGroupControllerMask supported, CGroupControllerMask mask, const char *path); |
126 | int cg_attach_everywhere(CGroupControllerMask supported, const char *path, pid_t pid); | |
127 | int cg_attach_many_everywhere(CGroupControllerMask supported, const char *path, Set* pids); | |
128 | int cg_migrate_everywhere(CGroupControllerMask supported, const char *from, const char *to); | |
129 | int cg_trim_everywhere(CGroupControllerMask supported, const char *path, bool delete_root); | |
4ad49000 LP |
130 | |
131 | CGroupControllerMask cg_mask_supported(void); |