Elly Jones | e58176c | 2012-01-23 11:46:17 -0500 | [diff] [blame] | 1 | /* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 2 | * Use of this source code is governed by a BSD-style license that can be |
Will Drewry | 32ac9f5 | 2011-08-18 21:36:27 -0500 | [diff] [blame] | 3 | * found in the LICENSE file. |
| 4 | */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 5 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 6 | /* |
| 7 | * The general pattern of use here: |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 8 | * 1) Construct a minijail with minijail_new() |
| 9 | * 2) Apply the desired restrictions to it |
| 10 | * 3) Enter it, which locks the current process inside it, or: |
| 11 | * 3) Run a process inside it |
| 12 | * 4) Destroy it. |
| 13 | */ |
| 14 | |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 15 | #ifndef _LIBMINIJAIL_H_ |
| 16 | #define _LIBMINIJAIL_H_ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 17 | |
| 18 | #include <stdint.h> |
| 19 | #include <sys/types.h> |
| 20 | |
| 21 | #ifdef __cplusplus |
| 22 | extern "C" { |
| 23 | #endif |
| 24 | |
| 25 | enum { |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 26 | MINIJAIL_ERR_PRELOAD = 252, |
| 27 | MINIJAIL_ERR_JAIL = 253, |
| 28 | MINIJAIL_ERR_INIT = 254, |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 29 | }; |
| 30 | |
| 31 | struct minijail; |
| 32 | |
Luis Hector Chavez | e0ba4ce | 2017-07-20 15:12:22 -0700 | [diff] [blame] | 33 | /* |
| 34 | * A hook that can be used to execute code at various events during minijail |
| 35 | * setup in the forked process. These can only be used if the jailed process is |
| 36 | * not going to be invoked with LD_PRELOAD. |
| 37 | * |
| 38 | * If the return value is non-zero, it will be interpreted as -errno and the |
| 39 | * process will abort. |
| 40 | */ |
| 41 | typedef int (*minijail_hook_t)(void *context); |
| 42 | |
| 43 | /* |
| 44 | * The events during minijail setup in which hooks can run. All the events are |
| 45 | * run in the new process. |
| 46 | */ |
| 47 | typedef enum { |
| 48 | /* The hook will run just before dropping capabilities. */ |
| 49 | MINIJAIL_HOOK_EVENT_PRE_DROP_CAPS, |
| 50 | |
| 51 | /* The hook will run just before calling execve(2). */ |
| 52 | MINIJAIL_HOOK_EVENT_PRE_EXECVE, |
| 53 | |
| 54 | /* Sentinel for error checking. Must be last. */ |
| 55 | MINIJAIL_HOOK_EVENT_MAX, |
| 56 | } minijail_hook_event_t; |
| 57 | |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 58 | /* Allocates a new minijail with no restrictions. */ |
| 59 | struct minijail *minijail_new(void); |
| 60 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 61 | /* |
| 62 | * These functions add restrictions to the minijail. They are not applied until |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 63 | * minijail_enter() is called. See the documentation in minijail0.1 for |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 64 | * explanations in detail of what the restrictions do. |
| 65 | */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 66 | void minijail_change_uid(struct minijail *j, uid_t uid); |
| 67 | void minijail_change_gid(struct minijail *j, gid_t gid); |
Jorge Lucangeli Obes | d16ac49 | 2015-12-03 14:44:35 -0800 | [diff] [blame] | 68 | /* Copies |list|. */ |
Jorge Lucangeli Obes | bc67f44 | 2016-01-08 14:43:45 -0800 | [diff] [blame] | 69 | void minijail_set_supplementary_gids(struct minijail *j, size_t size, |
| 70 | const gid_t *list); |
Lutz Justen | 13807cb | 2017-01-03 17:11:55 +0100 | [diff] [blame] | 71 | void minijail_keep_supplementary_gids(struct minijail *j); |
Will Drewry | 2ddaad0 | 2011-09-16 11:36:08 -0500 | [diff] [blame] | 72 | /* Stores user to change to and copies |user| for internal consistency. */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 73 | int minijail_change_user(struct minijail *j, const char *user); |
Will Drewry | 2ddaad0 | 2011-09-16 11:36:08 -0500 | [diff] [blame] | 74 | /* Does not take ownership of |group|. */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 75 | int minijail_change_group(struct minijail *j, const char *group); |
| 76 | void minijail_use_seccomp(struct minijail *j); |
Jorge Lucangeli Obes | c2c9bcc | 2012-05-01 09:30:24 -0700 | [diff] [blame] | 77 | void minijail_no_new_privs(struct minijail *j); |
Will Drewry | 32ac9f5 | 2011-08-18 21:36:27 -0500 | [diff] [blame] | 78 | void minijail_use_seccomp_filter(struct minijail *j); |
Jorge Lucangeli Obes | 1365061 | 2016-09-02 11:27:29 -0400 | [diff] [blame] | 79 | void minijail_set_seccomp_filter_tsync(struct minijail *j); |
Will Drewry | 32ac9f5 | 2011-08-18 21:36:27 -0500 | [diff] [blame] | 80 | void minijail_parse_seccomp_filters(struct minijail *j, const char *path); |
Jorge Lucangeli Obes | 4d4b3be | 2016-08-16 16:58:14 -0400 | [diff] [blame] | 81 | void minijail_parse_seccomp_filters_from_fd(struct minijail *j, int fd); |
Jorge Lucangeli Obes | bda833c | 2012-07-31 16:25:56 -0700 | [diff] [blame] | 82 | void minijail_log_seccomp_filter_failures(struct minijail *j); |
Jorge Lucangeli Obes | f9fcdbe | 2016-02-19 15:04:09 -0800 | [diff] [blame] | 83 | /* 'minijail_use_caps' and 'minijail_capbset_drop' are mutually exclusive. */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 84 | void minijail_use_caps(struct minijail *j, uint64_t capmask); |
Jorge Lucangeli Obes | f9fcdbe | 2016-02-19 15:04:09 -0800 | [diff] [blame] | 85 | void minijail_capbset_drop(struct minijail *j, uint64_t capmask); |
Jorge Lucangeli Obes | a6eb21a | 2017-04-20 10:44:00 -0400 | [diff] [blame] | 86 | /* 'minijail_set_ambient_caps' requires 'minijail_use_caps'. */ |
| 87 | void minijail_set_ambient_caps(struct minijail *j); |
Peter Qiu | 2860c46 | 2015-12-16 15:13:06 -0800 | [diff] [blame] | 88 | void minijail_reset_signal_mask(struct minijail *j); |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 89 | void minijail_namespace_vfs(struct minijail *j); |
Jorge Lucangeli Obes | 1563b5b | 2014-07-10 07:01:53 -0700 | [diff] [blame] | 90 | void minijail_namespace_enter_vfs(struct minijail *j, const char *ns_path); |
Chirantan Ekbote | 866bb3a | 2017-02-07 12:26:42 -0800 | [diff] [blame] | 91 | void minijail_new_session_keyring(struct minijail *j); |
Luis Hector Chavez | ec0a2c1 | 2017-06-29 20:29:57 -0700 | [diff] [blame] | 92 | void minijail_skip_setting_securebits(struct minijail *j, |
| 93 | uint64_t securebits_skip_mask); |
Chirantan Ekbote | 866bb3a | 2017-02-07 12:26:42 -0800 | [diff] [blame] | 94 | |
Jorge Lucangeli Obes | a521bee | 2016-03-03 13:47:57 -0800 | [diff] [blame] | 95 | /* |
| 96 | * This option is *dangerous* as it negates most of the functionality of |
| 97 | * minijail_namespace_vfs(). You very likely don't need this. |
| 98 | */ |
| 99 | void minijail_skip_remount_private(struct minijail *j); |
Dylan Reid | f794247 | 2015-11-18 17:55:26 -0800 | [diff] [blame] | 100 | void minijail_namespace_ipc(struct minijail *j); |
Mike Frysinger | b9a7b16 | 2017-05-30 15:25:49 -0400 | [diff] [blame] | 101 | void minijail_namespace_uts(struct minijail *j); |
| 102 | int minijail_namespace_set_hostname(struct minijail *j, const char *name); |
Elly Fong-Jones | 6c08630 | 2013-03-20 17:15:28 -0400 | [diff] [blame] | 103 | void minijail_namespace_net(struct minijail *j); |
Dylan Reid | 1102f5a | 2015-09-15 11:52:20 -0700 | [diff] [blame] | 104 | void minijail_namespace_enter_net(struct minijail *j, const char *ns_path); |
Dylan Reid | 4cbc2a5 | 2016-06-17 19:06:07 -0700 | [diff] [blame] | 105 | void minijail_namespace_cgroups(struct minijail *j); |
Luis Hector Chavez | 43ff080 | 2016-10-07 12:21:07 -0700 | [diff] [blame] | 106 | /* Closes all open file descriptors after forking. */ |
| 107 | void minijail_close_open_fds(struct minijail *j); |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 108 | /* |
| 109 | * Implies namespace_vfs and remount_proc_readonly. |
Elly Jones | 761b741 | 2012-06-13 15:49:52 -0400 | [diff] [blame] | 110 | * WARNING: this is NOT THREAD SAFE. See the block comment in </libminijail.c>. |
| 111 | */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 112 | void minijail_namespace_pids(struct minijail *j); |
Yu-Hsi Chiang | 10e9123 | 2015-08-05 14:40:45 +0800 | [diff] [blame] | 113 | void minijail_namespace_user(struct minijail *j); |
Jorge Lucangeli Obes | 200299c | 2016-09-23 15:21:57 -0400 | [diff] [blame] | 114 | void minijail_namespace_user_disable_setgroups(struct minijail *j); |
Yu-Hsi Chiang | 10e9123 | 2015-08-05 14:40:45 +0800 | [diff] [blame] | 115 | int minijail_uidmap(struct minijail *j, const char *uidmap); |
| 116 | int minijail_gidmap(struct minijail *j, const char *gidmap); |
Dylan Reid | 791f577 | 2015-09-14 20:02:42 -0700 | [diff] [blame] | 117 | void minijail_remount_proc_readonly(struct minijail *j); |
Yu-Hsi Chiang | 3e954ec | 2015-07-28 16:48:14 +0800 | [diff] [blame] | 118 | void minijail_run_as_init(struct minijail *j); |
Yu-Hsi Chiang | 3cc05ea | 2015-08-11 11:23:17 +0800 | [diff] [blame] | 119 | int minijail_write_pid_file(struct minijail *j, const char *path); |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 120 | void minijail_inherit_usergroups(struct minijail *j); |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 121 | /* |
| 122 | * Changes the jailed process's syscall table to the alt_syscall table |
Andrew Bresticker | eac2894 | 2015-11-11 16:04:46 -0800 | [diff] [blame] | 123 | * named |table|. |
| 124 | */ |
| 125 | int minijail_use_alt_syscall(struct minijail *j, const char *table); |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 126 | |
Dylan Reid | 0f72ef4 | 2017-06-06 15:42:49 -0700 | [diff] [blame] | 127 | /* Sets the given runtime limit. See getrlimit(2). */ |
| 128 | int minijail_rlimit(struct minijail *j, int type, uint32_t cur, uint32_t max); |
| 129 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 130 | /* |
Dylan Reid | 605ce7f | 2016-01-19 19:21:00 -0800 | [diff] [blame] | 131 | * Adds the jailed process to the cgroup given by |path|. |path| should be the |
| 132 | * full path to the cgroups "tasks" file. |
| 133 | * Example: /sys/fs/cgroup/cpu/jailed_procs/tasks adds to the "jailed_procs" cpu |
| 134 | * cgroup. |
| 135 | */ |
| 136 | int minijail_add_to_cgroup(struct minijail *j, const char *path); |
| 137 | |
| 138 | /* |
Jorge Lucangeli Obes | dba6209 | 2017-05-18 17:10:23 -0400 | [diff] [blame] | 139 | * Install signal handlers in the minijail process that forward received |
| 140 | * signals to the jailed child process. |
| 141 | */ |
| 142 | int minijail_forward_signals(struct minijail *j); |
| 143 | |
| 144 | /* |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 145 | * minijail_enter_chroot: enables chroot() restriction for @j |
Elly Jones | 51a5b6c | 2011-10-12 19:09:26 -0400 | [diff] [blame] | 146 | * @j minijail to apply restriction to |
| 147 | * @dir directory to chroot() to. Owned by caller. |
| 148 | * |
| 149 | * Enters @dir, binding all bind mounts specified with minijail_bind() into |
| 150 | * place. Requires @dir to contain all necessary directories for bind mounts |
| 151 | * (i.e., if you have requested a bind mount at /etc, /etc must exist in @dir.) |
| 152 | * |
| 153 | * Returns 0 on success. |
| 154 | */ |
| 155 | int minijail_enter_chroot(struct minijail *j, const char *dir); |
Yu-Hsi Chiang | 64d65a7 | 2015-08-13 17:43:27 +0800 | [diff] [blame] | 156 | int minijail_enter_pivot_root(struct minijail *j, const char *dir); |
Elly Jones | 51a5b6c | 2011-10-12 19:09:26 -0400 | [diff] [blame] | 157 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 158 | /* |
| 159 | * minijail_get_original_path: returns the path of a given file outside of the |
Dylan Reid | 08946cc | 2015-09-16 19:10:57 -0700 | [diff] [blame] | 160 | * chroot. |
| 161 | * @j minijail to obtain the path from. |
| 162 | * @chroot_path path inside of the chroot() to. |
| 163 | * |
| 164 | * When executing a binary in a chroot or pivot_root, return path to the binary |
| 165 | * outside of the chroot. |
| 166 | * |
| 167 | * Returns a string containing the path. This must be freed by the caller. |
| 168 | */ |
| 169 | char *minijail_get_original_path(struct minijail *j, const char *chroot_path); |
| 170 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 171 | /* |
Martin Pelikán | ab9eb44 | 2017-01-25 11:53:58 +1100 | [diff] [blame] | 172 | * minijail_mount_tmp: enables mounting of a 64M tmpfs filesystem on /tmp. |
Lee Campbell | 11af062 | 2014-05-22 12:36:04 -0700 | [diff] [blame] | 173 | * As be rules of bind mounts, /tmp must exist in chroot. |
| 174 | */ |
| 175 | void minijail_mount_tmp(struct minijail *j); |
| 176 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 177 | /* |
Martin Pelikán | ab9eb44 | 2017-01-25 11:53:58 +1100 | [diff] [blame] | 178 | * minijail_mount_tmp_size: enables mounting of a tmpfs filesystem on /tmp. |
| 179 | * As be rules of bind mounts, /tmp must exist in chroot. Size is in bytes. |
| 180 | */ |
| 181 | void minijail_mount_tmp_size(struct minijail *j, size_t size); |
| 182 | |
| 183 | /* |
Dylan Reid | 81e2397 | 2016-05-18 14:06:35 -0700 | [diff] [blame] | 184 | * minijail_mount_with_data: when entering minijail @j, |
| 185 | * mounts @src at @dst with @flags and @data. |
| 186 | * @j minijail to bind inside |
| 187 | * @src source to bind |
| 188 | * @dest location to bind (inside chroot) |
| 189 | * @type type of filesystem |
| 190 | * @flags flags passed to mount |
| 191 | * @data data arguments passed to mount(2), e.g. "mode=755" |
| 192 | * |
| 193 | * This may be called multiple times; all mounts will be applied in the order |
| 194 | * of minijail_mount() calls. |
| 195 | */ |
| 196 | int minijail_mount_with_data(struct minijail *j, const char *src, |
| 197 | const char *dest, const char *type, |
| 198 | unsigned long flags, const char *data); |
| 199 | |
| 200 | /* |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 201 | * minijail_mount: when entering minijail @j, mounts @src at @dst with @flags |
Dylan Reid | 648b220 | 2015-10-23 00:50:00 -0700 | [diff] [blame] | 202 | * @j minijail to bind inside |
| 203 | * @src source to bind |
| 204 | * @dest location to bind (inside chroot) |
| 205 | * @type type of filesystem |
| 206 | * @flags flags passed to mount |
| 207 | * |
Dylan Reid | 81e2397 | 2016-05-18 14:06:35 -0700 | [diff] [blame] | 208 | * This may be called multiple times; all mounts will be applied in the order |
Dylan Reid | 648b220 | 2015-10-23 00:50:00 -0700 | [diff] [blame] | 209 | * of minijail_mount() calls. |
| 210 | */ |
| 211 | int minijail_mount(struct minijail *j, const char *src, const char *dest, |
Jorge Lucangeli Obes | d16ac49 | 2015-12-03 14:44:35 -0800 | [diff] [blame] | 212 | const char *type, unsigned long flags); |
Dylan Reid | 648b220 | 2015-10-23 00:50:00 -0700 | [diff] [blame] | 213 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 214 | /* |
| 215 | * minijail_bind: bind-mounts @src into @j as @dest, optionally writeable |
Elly Jones | 51a5b6c | 2011-10-12 19:09:26 -0400 | [diff] [blame] | 216 | * @j minijail to bind inside |
| 217 | * @src source to bind |
| 218 | * @dest location to bind (inside chroot) |
| 219 | * @writeable 1 if the bind mount should be writeable |
| 220 | * |
| 221 | * This may be called multiple times; all bindings will be applied in the order |
| 222 | * of minijail_bind() calls. |
| 223 | */ |
| 224 | int minijail_bind(struct minijail *j, const char *src, const char *dest, |
Jorge Lucangeli Obes | 2f61ee4 | 2014-06-16 11:08:18 -0700 | [diff] [blame] | 225 | int writeable); |
Elly Jones | 51a5b6c | 2011-10-12 19:09:26 -0400 | [diff] [blame] | 226 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 227 | /* |
Luis Hector Chavez | e0ba4ce | 2017-07-20 15:12:22 -0700 | [diff] [blame] | 228 | * minijail_add_hook: adds @hook to the list of hooks that will be |
| 229 | * invoked when @event is reached during minijail setup. The caller is |
| 230 | * responsible for the lifetime of @payload. |
| 231 | * @j minijail to add the hook to |
| 232 | * @hook the function that will be invoked |
| 233 | * @payload an opaque pointer |
| 234 | * @event the event that will trigger the hook |
| 235 | */ |
| 236 | int minijail_add_hook(struct minijail *j, |
| 237 | minijail_hook_t hook, void *payload, |
| 238 | minijail_hook_event_t event); |
| 239 | |
| 240 | /* |
Luis Hector Chavez | 1617f63 | 2017-08-01 18:32:30 -0700 | [diff] [blame^] | 241 | * minijail_preserve_fd: preserves @parent_fd and makes it available as |
| 242 | * @child_fd in the child process. @parent_fd will be closed if no other |
| 243 | * redirect has claimed it as a @child_fd. This works even if |
| 244 | * minijail_close_open_fds() is invoked. |
| 245 | * @j minijail to add the fd to |
| 246 | * @parent_fd the fd in the parent process |
| 247 | * @child_fd the fd that will be available in the child process |
| 248 | */ |
| 249 | int minijail_preserve_fd(struct minijail *j, int parent_fd, int child_fd); |
| 250 | |
| 251 | /* |
Jorge Lucangeli Obes | deca9f2 | 2016-07-01 09:49:39 -0400 | [diff] [blame] | 252 | * Lock this process into the given minijail. Note that this procedure cannot |
| 253 | * fail, since there is no way to undo privilege-dropping; therefore, if any |
| 254 | * part of the privilege-drop fails, minijail_enter() will abort the entire |
| 255 | * process. |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 256 | * |
| 257 | * Some restrictions cannot be enabled this way (pid namespaces) and attempting |
| 258 | * to do so will cause an abort. |
| 259 | */ |
| 260 | void minijail_enter(const struct minijail *j); |
| 261 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 262 | /* |
| 263 | * Run the specified command in the given minijail, execve(2)-style. This is |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 264 | * required if minijail_namespace_pids() was used. |
| 265 | */ |
| 266 | int minijail_run(struct minijail *j, const char *filename, |
| 267 | char *const argv[]); |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 268 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 269 | /* |
| 270 | * Run the specified command in the given minijail, execve(2)-style. |
Jorge Lucangeli Obes | 5471450 | 2015-09-30 10:08:45 -0700 | [diff] [blame] | 271 | * Used with static binaries, or on systems without support for LD_PRELOAD. |
Lee Campbell | 1e4fc6a | 2014-06-06 17:40:02 -0700 | [diff] [blame] | 272 | */ |
Jorge Lucangeli Obes | 5471450 | 2015-09-30 10:08:45 -0700 | [diff] [blame] | 273 | int minijail_run_no_preload(struct minijail *j, const char *filename, |
| 274 | char *const argv[]); |
Lee Campbell | 1e4fc6a | 2014-06-06 17:40:02 -0700 | [diff] [blame] | 275 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 276 | /* |
| 277 | * Run the specified command in the given minijail, execve(2)-style. |
Jorge Lucangeli Obes | 9807d03 | 2012-04-17 13:36:00 -0700 | [diff] [blame] | 278 | * Update |*pchild_pid| with the pid of the child. |
| 279 | */ |
| 280 | int minijail_run_pid(struct minijail *j, const char *filename, |
| 281 | char *const argv[], pid_t *pchild_pid); |
| 282 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 283 | /* |
| 284 | * Run the specified command in the given minijail, execve(2)-style. |
Jorge Lucangeli Obes | df4bd35 | 2012-08-29 19:12:28 -0700 | [diff] [blame] | 285 | * Update |*pstdin_fd| with a fd that allows writing to the child's |
| 286 | * standard input. |
| 287 | */ |
| 288 | int minijail_run_pipe(struct minijail *j, const char *filename, |
| 289 | char *const argv[], int *pstdin_fd); |
| 290 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 291 | /* |
| 292 | * Run the specified command in the given minijail, execve(2)-style. |
Jorge Lucangeli Obes | df4bd35 | 2012-08-29 19:12:28 -0700 | [diff] [blame] | 293 | * Update |*pchild_pid| with the pid of the child. |
| 294 | * Update |*pstdin_fd| with a fd that allows writing to the child's |
| 295 | * standard input. |
Jorge Lucangeli Obes | 339a113 | 2013-02-15 16:53:47 -0800 | [diff] [blame] | 296 | * Update |*pstdout_fd| with a fd that allows reading from the child's |
| 297 | * standard output. |
| 298 | * Update |*pstderr_fd| with a fd that allows reading from the child's |
| 299 | * standard error. |
| 300 | */ |
| 301 | int minijail_run_pid_pipes(struct minijail *j, const char *filename, |
| 302 | char *const argv[], pid_t *pchild_pid, |
| 303 | int *pstdin_fd, int *pstdout_fd, int *pstderr_fd); |
| 304 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 305 | /* |
| 306 | * Run the specified command in the given minijail, execve(2)-style. |
Samuel Tan | 63187f4 | 2015-10-16 13:01:53 -0700 | [diff] [blame] | 307 | * Update |*pchild_pid| with the pid of the child. |
| 308 | * Update |*pstdin_fd| with a fd that allows writing to the child's |
| 309 | * standard input. |
| 310 | * Update |*pstdout_fd| with a fd that allows reading from the child's |
| 311 | * standard output. |
| 312 | * Update |*pstderr_fd| with a fd that allows reading from the child's |
| 313 | * standard error. |
| 314 | * Used with static binaries, or on systems without support for LD_PRELOAD. |
| 315 | */ |
| 316 | int minijail_run_pid_pipes_no_preload(struct minijail *j, const char *filename, |
| 317 | char *const argv[], pid_t *pchild_pid, |
Jorge Lucangeli Obes | 43a6a86 | 2015-12-04 14:53:36 -0800 | [diff] [blame] | 318 | int *pstdin_fd, int *pstdout_fd, |
| 319 | int *pstderr_fd); |
Samuel Tan | 63187f4 | 2015-10-16 13:01:53 -0700 | [diff] [blame] | 320 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 321 | /* |
| 322 | * Kill the specified minijail. The minijail must have been created with pid |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 323 | * namespacing; if it was, all processes inside it are atomically killed. |
| 324 | */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 325 | int minijail_kill(struct minijail *j); |
| 326 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 327 | /* |
Jorge Lucangeli Obes | deca9f2 | 2016-07-01 09:49:39 -0400 | [diff] [blame] | 328 | * Wait for all processes in the specified minijail to exit. Returns the exit |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 329 | * status of the _first_ process spawned in the jail. |
| 330 | */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 331 | int minijail_wait(struct minijail *j); |
| 332 | |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 333 | /* |
Jorge Lucangeli Obes | deca9f2 | 2016-07-01 09:49:39 -0400 | [diff] [blame] | 334 | * Frees the given minijail. It does not matter if the process is inside the |
| 335 | * minijail or not. |
Jorge Lucangeli Obes | d0a6e2f | 2015-11-24 14:21:21 -0800 | [diff] [blame] | 336 | */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 337 | void minijail_destroy(struct minijail *j); |
| 338 | |
| 339 | #ifdef __cplusplus |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 340 | }; /* extern "C" */ |
Elly Jones | cd7a904 | 2011-07-22 13:56:51 -0400 | [diff] [blame] | 341 | #endif |
| 342 | |
Elly Jones | e1749eb | 2011-10-07 13:54:59 -0400 | [diff] [blame] | 343 | #endif /* !_LIBMINIJAIL_H_ */ |