[mirror_lxc.git] / src / lxc / conf.h

/*
 * lxc: linux Container library
 *
 * (C) Copyright IBM Corp. 2007, 2008
 *
 * Authors:
 * Daniel Lezcano <daniel.lezcano at free.fr>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
#ifndef __LXC_CONF_H
#define __LXC_CONF_H

#include "config.h"

#include <stdio.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sys/param.h>
#include <sys/types.h>
#if HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#include <stdbool.h>

#include "list.h"
#include "start.h" /* for lxc_handler */

#if HAVE_SCMP_FILTER_CTX
typedef void * scmp_filter_ctx;
#endif

/* worth moving to configure.ac? */
#define subuidfile "/etc/subuid"
#define subgidfile "/etc/subgid"

/*
 * Defines a generic struct to configure the control group. It is up to the
 * programmer to specify the right subsystem.
 * @subsystem : the targeted subsystem
 * @value     : the value to set
 *
 * @controllers : The controllers to use for this container.
 * @dir         : The name of the directory containing the container's cgroup.
 *                Not that this is a per-container setting.
 */
struct lxc_cgroup {
	union {
		/* information about a specific controller */
		struct /* controller */ {
			char *subsystem;
			char *value;
		};

		/* meta information about cgroup configuration */
		struct /* meta */ {
			char *controllers;
			char *dir;
		};
	};
};

#if !HAVE_SYS_RESOURCE_H
# define RLIM_INFINITY ((unsigned long)-1)
struct rlimit {
	unsigned long rlim_cur;
	unsigned long rlim_max;
};
#endif
/*
 * Defines a structure to configure resource limits to set via setrlimit().
 * @resource : the resource name in lowercase without the RLIMIT_ prefix
 * @limit    : the limit to set
 */
struct lxc_limit {
	char *resource;
	struct rlimit limit;
};

enum idtype {
	ID_TYPE_UID,
	ID_TYPE_GID
};

/*
 * id_map is an id map entry.  Form in confile is:
 * lxc.idmap = u 0    9800 100
 * lxc.idmap = u 1000 9900 100
 * lxc.idmap = g 0    9800 100
 * lxc.idmap = g 1000 9900 100
 * meaning the container can use uids and gids 0-99 and 1000-1099,
 * with [ug]id 0 mapping to [ug]id 9800 on the host, and [ug]id 1000 to
 * [ug]id 9900 on the host.
 */
struct id_map {
	enum idtype idtype;
	unsigned long hostid, nsid, range;
};

/*
 * Defines a structure containing a pty information for
 * virtualizing a tty
 * @name   : the path name of the slave pty side
 * @master : the file descriptor of the master
 * @slave  : the file descriptor of the slave
 */
struct lxc_pty_info {
	char name[MAXPATHLEN];
	int master;
	int slave;
	int busy;
};

/*
 * Defines the number of tty configured and contains the
 * instantiated ptys
 * @nbtty = number of configured ttys
 */
struct lxc_tty_info {
	int nbtty;
	struct lxc_pty_info *pty_info;
};

struct lxc_tty_state;

/*
 * Defines the structure to store the console information
 * @peer   : the file descriptor put/get console traffic
 * @name   : the file name of the slave pty
 */
struct lxc_console {
	int slave;
	int master;
	int peer;
	struct lxc_pty_info peerpty;
	struct lxc_epoll_descr *descr;
	char *path;
	char *log_path;
	int log_fd;
	char name[MAXPATHLEN];
	struct termios *tios;
	struct lxc_tty_state *tty_state;
};

/*
 * Defines a structure to store the rootfs location, the
 * optionals pivot_root, rootfs mount paths
 * @path       : the rootfs source (directory or device)
 * @mount      : where it is mounted
 * @options    : mount options
 * @bev_type   : optional backing store type
 */
struct lxc_rootfs {
	char *path;
	char *mount;
	char *options;
	char *bdev_type;
};

/*
 * Automatic mounts for LXC to perform inside the container
 */
enum {
	LXC_AUTO_PROC_RW              = 0x001,   /* /proc read-write */
	LXC_AUTO_PROC_MIXED           = 0x002,   /* /proc/sys and /proc/sysrq-trigger read-only */
	LXC_AUTO_PROC_MASK            = 0x003,

	LXC_AUTO_SYS_RW               = 0x004,   /* /sys */
	LXC_AUTO_SYS_RO               = 0x008,   /* /sys read-only */
	LXC_AUTO_SYS_MIXED            = 0x00C,   /* /sys read-only and /sys/class/net read-write */
	LXC_AUTO_SYS_MASK             = 0x00C,

	LXC_AUTO_CGROUP_RO            = 0x010,   /* /sys/fs/cgroup (partial mount, read-only) */
	LXC_AUTO_CGROUP_RW            = 0x020,   /* /sys/fs/cgroup (partial mount, read-write) */
	LXC_AUTO_CGROUP_MIXED         = 0x030,   /* /sys/fs/cgroup (partial mount, paths r/o, cgroup r/w) */
	LXC_AUTO_CGROUP_FULL_RO       = 0x040,   /* /sys/fs/cgroup (full mount, read-only) */
	LXC_AUTO_CGROUP_FULL_RW       = 0x050,   /* /sys/fs/cgroup (full mount, read-write) */
	LXC_AUTO_CGROUP_FULL_MIXED    = 0x060,   /* /sys/fs/cgroup (full mount, parent r/o, own r/w) */
	/* These are defined in such a way as to retain
	 * binary compatibility with earlier versions of
	 * this code. If the previous mask is applied,
	 * both of these will default back to the _MIXED
	 * variants, which is safe. */
	LXC_AUTO_CGROUP_NOSPEC        = 0x0B0,   /* /sys/fs/cgroup (partial mount, r/w or mixed, depending on caps) */
	LXC_AUTO_CGROUP_FULL_NOSPEC   = 0x0E0,   /* /sys/fs/cgroup (full mount, r/w or mixed, depending on caps) */
	LXC_AUTO_CGROUP_MASK          = 0x0F0,

	LXC_AUTO_ALL_MASK             = 0x0FF,   /* all known settings */
};

/*
 * Defines the global container configuration
 * @rootfs     : root directory to run the container
 * @mount      : list of mount points
 * @tty        : numbers of tty
 * @pts        : new pts instance
 * @mount_list : list of mount point (alternative to fstab file)
 * @network    : network configuration
 * @utsname    : container utsname
 * @fstab      : path to a fstab file format
 * @caps       : list of the capabilities to drop
 * @keepcaps   : list of the capabilities to keep
 * @tty_info   : tty data
 * @console    : console data
 * @ttydir     : directory (under /dev) in which to create console and ttys
 * @lsm_aa_profile : apparmor profile to switch to or NULL
 * @lsm_se_context : selinux type to switch to or NULL
 */
enum lxchooks {
	LXCHOOK_PRESTART,
	LXCHOOK_PREMOUNT,
	LXCHOOK_MOUNT,
	LXCHOOK_AUTODEV,
	LXCHOOK_START,
	LXCHOOK_STOP,
	LXCHOOK_POSTSTOP,
	LXCHOOK_CLONE,
	LXCHOOK_DESTROY,
	NUM_LXC_HOOKS
};

extern char *lxchook_names[NUM_LXC_HOOKS];

struct lxc_conf {
	int is_execute;
	char *fstab;
	unsigned int tty;
	unsigned int pts;
	int reboot;
	signed long personality;
	struct utsname *utsname;
	struct lxc_list cgroup;
	struct lxc_list id_map;
	struct lxc_list network;
	int auto_mounts;
	struct lxc_list mount_list;
	struct lxc_list caps;
	struct lxc_list keepcaps;
	struct lxc_tty_info tty_info;
	/* Comma-separated list of lxc.tty.max pty names. */
	char *pty_names;
	struct lxc_console console;
	struct lxc_rootfs rootfs;
	char *ttydir;
	int close_all_fds;
	struct lxc_list hooks[NUM_LXC_HOOKS];

	char *lsm_aa_profile;
	unsigned int lsm_aa_allow_incomplete;
	char *lsm_se_context;
	int tmp_umount_proc;
	char *seccomp;  /* filename with the seccomp rules */
#if HAVE_SCMP_FILTER_CTX
	scmp_filter_ctx seccomp_ctx;
#endif
	int maincmd_fd;
	unsigned int autodev;  /* if 1, mount and fill a /dev at start */
	int haltsignal; /* signal used to halt container */
	int rebootsignal; /* signal used to reboot container */
	int stopsignal; /* signal used to hard stop container */
	char *rcfile;	/* Copy of the top level rcfile we read */

	/* Logfile and logleve can be set in a container config file. Those
	 * function as defaults. The defaults can be overriden by command line.
	 * However we don't want the command line specified values to be saved
	 * on c->save_config(). So we store the config file specified values
	 * here. */
	char *logfile; /* the logfile as specifed in config */
	int loglevel; /* loglevel as specifed in config (if any) */
	int logfd;

	int inherit_ns_fd[LXC_NS_MAX];

	unsigned int start_auto;
	unsigned int start_delay;
	int start_order;
	struct lxc_list groups;
	int nbd_idx;

	/* unshare the mount namespace in the monitor */
	unsigned int monitor_unshare;

	/* set to true when rootfs has been setup */
	bool rootfs_setup;

	/* list of included files */
	struct lxc_list includes;
	/* config entries which are not "lxc.*" are aliens */
	struct lxc_list aliens;

	/* list of environment variables we'll add to the container when
	 * started */
	struct lxc_list environment;

	/* text representation of the config file */
	char *unexpanded_config;
	size_t unexpanded_len, unexpanded_alloced;

	/* init command */
	char *init_cmd;

	/* if running in a new user namespace, the UID/GID that init and COMMAND
	 * should run under when using lxc-execute */
	uid_t init_uid;
	gid_t init_gid;

	/* indicator if the container will be destroyed on shutdown */
	unsigned int ephemeral;

	/* The facility to pass to syslog. Let's users establish as what type of
	 * program liblxc is supposed to write to the syslog. */
	char *syslog;

	/* Whether PR_SET_NO_NEW_PRIVS will be set for the container. */
	bool no_new_privs;

	/* RLIMIT_* limits */
	struct lxc_list limits;

	/* REMOVE IN LXC 3.0
	 * Indicator whether the current config file we're using contained any
	 * legacy configuration keys.
	 */
	bool contains_legacy_key;

	/* Contains generic info about the cgroup configuration for this
	 * container. Note that struct lxc_cgroup contains a union. It is only
	 * valid to access the members of the anonymous "meta" struct within
	 * that union.
	 */
	struct lxc_cgroup cgroup_meta;
};

#ifdef HAVE_TLS
extern __thread struct lxc_conf *current_config;
#else
extern struct lxc_conf *current_config;
#endif

extern int run_lxc_hooks(const char *name, char *hook, struct lxc_conf *conf,
			 const char *lxcpath, char *argv[]);
extern int detect_shared_rootfs(void);
extern struct lxc_conf *lxc_conf_init(void);
extern void lxc_conf_free(struct lxc_conf *conf);
extern int pin_rootfs(const char *rootfs);
extern int lxc_map_ids(struct lxc_list *idmap, pid_t pid);
extern int lxc_create_tty(const char *name, struct lxc_conf *conf);
extern void lxc_delete_tty(struct lxc_tty_info *tty_info);
extern int lxc_clear_config_caps(struct lxc_conf *c);
extern int lxc_clear_config_keepcaps(struct lxc_conf *c);
extern int lxc_clear_cgroups(struct lxc_conf *c, const char *key);
extern int lxc_clear_mount_entries(struct lxc_conf *c);
extern int lxc_clear_automounts(struct lxc_conf *c);
extern int lxc_clear_hooks(struct lxc_conf *c, const char *key);
extern int lxc_clear_idmaps(struct lxc_conf *c);
extern int lxc_clear_groups(struct lxc_conf *c);
extern int lxc_clear_environment(struct lxc_conf *c);
extern int lxc_clear_limits(struct lxc_conf *c, const char *key);
extern int lxc_delete_autodev(struct lxc_handler *handler);
extern void lxc_clear_includes(struct lxc_conf *conf);
extern int do_rootfs_setup(struct lxc_conf *conf, const char *name,
			   const char *lxcpath);
extern int lxc_setup(struct lxc_handler *handler);
extern int setup_resource_limits(struct lxc_list *limits, pid_t pid);
extern int find_unmapped_nsid(struct lxc_conf *conf, enum idtype idtype);
extern int mapped_hostid(unsigned id, struct lxc_conf *conf,
			 enum idtype idtype);
extern int chown_mapped_root(char *path, struct lxc_conf *conf);
extern int lxc_ttys_shift_ids(struct lxc_conf *c);
extern int userns_exec_1(struct lxc_conf *conf, int (*fn)(void *), void *data,
			 const char *fn_name);
extern int userns_exec_full(struct lxc_conf *conf, int (*fn)(void *),
			    void *data, const char *fn_name);
extern int parse_mntopts(const char *mntopts, unsigned long *mntflags,
			 char **mntdata);
extern void tmp_proc_unmount(struct lxc_conf *lxc_conf);
extern void remount_all_slave(void);
extern void suggest_default_idmap(void);
extern FILE *make_anonymous_mount_file(struct lxc_list *mount);
extern struct lxc_list *sort_cgroup_settings(struct lxc_list *cgroup_settings);
extern unsigned long add_required_remount_flags(const char *s, const char *d,
						unsigned long flags);
extern int run_script(const char *name, const char *section, const char *script,
		      ...);

#endif /* __LXC_CONF_H */
Commit	Line	Data
0ad19a3f	1	/*
	2	* lxc: linux Container library
	3	*
	4	* (C) Copyright IBM Corp. 2007, 2008
	5	*
	6	* Authors:
9afe19d6	7	* Daniel Lezcano <daniel.lezcano at free.fr>
0ad19a3f	8	*
	9	* This library is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU Lesser General Public
	11	* License as published by the Free Software Foundation; either
	12	* version 2.1 of the License, or (at your option) any later version.
	13	*
	14	* This library is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* Lesser General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU Lesser General Public
	20	* License along with this library; if not, write to the Free Software
250b1eec	21	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
0ad19a3f	22	*/
f1a4a029 ÇO	23	#ifndef __LXC_CONF_H
f1a4a029 ÇO	24	#define __LXC_CONF_H
0ad19a3f	25
f424fa8f SG	26	#include "config.h"
f424fa8f SG	27
9fc7f8c0	28	#include <stdio.h>
74a2b586	29	#include <net/if.h>
1a0e70ac	30	#include <netinet/in.h>
b0a33c1e	31	#include <sys/param.h>
8173e600	32	#include <sys/types.h>
c6d09e15 WB	33	#if HAVE_SYS_RESOURCE_H
	34	#include <sys/resource.h>
	35	#endif
19a26f82	36	#include <stdbool.h>
0ad19a3f	37
f2363e38 ÇO	38	#include "list.h"
f2363e38 ÇO	39	#include "start.h" /* for lxc_handler */
e3b4c4c4	40
769872f9 SH	41	#if HAVE_SCMP_FILTER_CTX
	42	typedef void * scmp_filter_ctx;
	43	#endif
	44
97e9cfa0 SH	45	/* worth moving to configure.ac? */
	46	#define subuidfile "/etc/subuid"
	47	#define subgidfile "/etc/subgid"
	48
0ad19a3f	49	/*
43654d34 CB	50	* Defines a generic struct to configure the control group. It is up to the
43654d34 CB	51	* programmer to specify the right subsystem.
ec64264d	52	* @subsystem : the targeted subsystem
576f946d	53	* @value : the value to set
43654d34 CB	54	*
	55	* @controllers : The controllers to use for this container.
	56	* @dir : The name of the directory containing the container's cgroup.
	57	* Not that this is a per-container setting.
0ad19a3f	58	*/
0ad19a3f	59	struct lxc_cgroup {
43654d34 CB	60	union {
	61	/* information about a specific controller */
	62	struct /* controller */ {
	63	char *subsystem;
	64	char *value;
	65	};
	66
	67	/* meta information about cgroup configuration */
	68	struct /* meta */ {
	69	char *controllers;
	70	char *dir;
	71	};
	72	};
0ad19a3f	73	};
0ad19a3f	74
c6d09e15 WB	75	#if !HAVE_SYS_RESOURCE_H
	76	# define RLIM_INFINITY ((unsigned long)-1)
	77	struct rlimit {
	78	unsigned long rlim_cur;
	79	unsigned long rlim_max;
	80	};
	81	#endif
	82	/*
	83	* Defines a structure to configure resource limits to set via setrlimit().
	84	* @resource : the resource name in lowercase without the RLIMIT_ prefix
	85	* @limit : the limit to set
	86	*/
	87	struct lxc_limit {
	88	char *resource;
	89	struct rlimit limit;
	90	};
	91
f6d3e3e4 SH	92	enum idtype {
	93	ID_TYPE_UID,
	94	ID_TYPE_GID
	95	};
	96
	97	/*
	98	* id_map is an id map entry. Form in confile is:
bdcbb6b3 CB	99	* lxc.idmap = u 0 9800 100
	100	* lxc.idmap = u 1000 9900 100
	101	* lxc.idmap = g 0 9800 100
	102	* lxc.idmap = g 1000 9900 100
251d0d2a DE	103	* meaning the container can use uids and gids 0-99 and 1000-1099,
	104	* with [ug]id 0 mapping to [ug]id 9800 on the host, and [ug]id 1000 to
	105	* [ug]id 9900 on the host.
f6d3e3e4 SH	106	*/
	107	struct id_map {
	108	enum idtype idtype;
251d0d2a	109	unsigned long hostid, nsid, range;
f6d3e3e4 SH	110	};
f6d3e3e4 SH	111
b0a33c1e	112	/*
	113	* Defines a structure containing a pty information for
	114	* virtualizing a tty
	115	* @name : the path name of the slave pty side
	116	* @master : the file descriptor of the master
	117	* @slave : the file descriptor of the slave
	118	*/
	119	struct lxc_pty_info {
	120	char name[MAXPATHLEN];
	121	int master;
	122	int slave;
	123	int busy;
	124	};
	125
	126	/*
	127	* Defines the number of tty configured and contains the
a589434e	128	* instantiated ptys
b0a33c1e	129	* @nbtty = number of configured ttys
	130	*/
	131	struct lxc_tty_info {
	132	int nbtty;
	133	struct lxc_pty_info *pty_info;
	134	};
	135
b5159817 DE	136	struct lxc_tty_state;
b5159817 DE	137
63376d7d DL	138	/*
	139	* Defines the structure to store the console information
	140	* @peer : the file descriptor put/get console traffic
	141	* @name : the file name of the slave pty
	142	*/
	143	struct lxc_console {
	144	int slave;
	145	int master;
	146	int peer;
b5159817 DE	147	struct lxc_pty_info peerpty;
b5159817 DE	148	struct lxc_epoll_descr *descr;
28a4b0e5	149	char *path;
596a818d DE	150	char *log_path;
596a818d DE	151	int log_fd;
63376d7d	152	char name[MAXPATHLEN];
e0dc0de7	153	struct termios *tios;
b5159817	154	struct lxc_tty_state *tty_state;
63376d7d DL	155	};
63376d7d DL	156
33fcb7a0 DL	157	/*
	158	* Defines a structure to store the rootfs location, the
	159	* optionals pivot_root, rootfs mount paths
59bb8698 SH	160	* @path : the rootfs source (directory or device)
	161	* @mount : where it is mounted
	162	* @options : mount options
b3b8c97f	163	* @bev_type : optional backing store type
33fcb7a0 DL	164	*/
	165	struct lxc_rootfs {
	166	char *path;
23b7ea69	167	char *mount;
a17b1e65	168	char *options;
b3b8c97f	169	char *bdev_type;
33fcb7a0 DL	170	};
33fcb7a0 DL	171
368bbc02 CS	172	/*
	173	* Automatic mounts for LXC to perform inside the container
	174	*/
	175	enum {
b06b8511 CS	176	LXC_AUTO_PROC_RW = 0x001, /* /proc read-write */
	177	LXC_AUTO_PROC_MIXED = 0x002, /* /proc/sys and /proc/sysrq-trigger read-only */
	178	LXC_AUTO_PROC_MASK = 0x003,
	179
	180	LXC_AUTO_SYS_RW = 0x004, /* /sys */
	181	LXC_AUTO_SYS_RO = 0x008, /* /sys read-only */
f24a52d5	182	LXC_AUTO_SYS_MIXED = 0x00C, /* /sys read-only and /sys/class/net read-write */
b06b8511 CS	183	LXC_AUTO_SYS_MASK = 0x00C,
	184
	185	LXC_AUTO_CGROUP_RO = 0x010, /* /sys/fs/cgroup (partial mount, read-only) */
	186	LXC_AUTO_CGROUP_RW = 0x020, /* /sys/fs/cgroup (partial mount, read-write) */
	187	LXC_AUTO_CGROUP_MIXED = 0x030, /* /sys/fs/cgroup (partial mount, paths r/o, cgroup r/w) */
	188	LXC_AUTO_CGROUP_FULL_RO = 0x040, /* /sys/fs/cgroup (full mount, read-only) */
	189	LXC_AUTO_CGROUP_FULL_RW = 0x050, /* /sys/fs/cgroup (full mount, read-write) */
	190	LXC_AUTO_CGROUP_FULL_MIXED = 0x060, /* /sys/fs/cgroup (full mount, parent r/o, own r/w) */
0769b82a CS	191	/* These are defined in such a way as to retain
	192	* binary compatibility with earlier versions of
	193	* this code. If the previous mask is applied,
	194	* both of these will default back to the _MIXED
	195	* variants, which is safe. */
	196	LXC_AUTO_CGROUP_NOSPEC = 0x0B0, /* /sys/fs/cgroup (partial mount, r/w or mixed, depending on caps) */
	197	LXC_AUTO_CGROUP_FULL_NOSPEC = 0x0E0, /* /sys/fs/cgroup (full mount, r/w or mixed, depending on caps) */
	198	LXC_AUTO_CGROUP_MASK = 0x0F0,
b06b8511	199
0769b82a	200	LXC_AUTO_ALL_MASK = 0x0FF, /* all known settings */
368bbc02 CS	201	};
368bbc02 CS	202
571e6ec8 DL	203	/*
571e6ec8 DL	204	* Defines the global container configuration
63376d7d	205	* @rootfs : root directory to run the container
63376d7d DL	206	* @mount : list of mount points
	207	* @tty : numbers of tty
	208	* @pts : new pts instance
	209	* @mount_list : list of mount point (alternative to fstab file)
	210	* @network : network configuration
	211	* @utsname : container utsname
	212	* @fstab : path to a fstab file format
1fb86a7c SH	213	* @caps : list of the capabilities to drop
1fb86a7c SH	214	* @keepcaps : list of the capabilities to keep
63376d7d DL	215	* @tty_info : tty data
63376d7d DL	216	* @console : console data
7c6ef2a2	217	* @ttydir : directory (under /dev) in which to create console and ttys
fe4de9a6 DE	218	* @lsm_aa_profile : apparmor profile to switch to or NULL
fe4de9a6 DE	219	* @lsm_se_context : selinux type to switch to or NULL
571e6ec8	220	*/
26ddeedd	221	enum lxchooks {
1a0e70ac CB	222	LXCHOOK_PRESTART,
	223	LXCHOOK_PREMOUNT,
	224	LXCHOOK_MOUNT,
	225	LXCHOOK_AUTODEV,
	226	LXCHOOK_START,
	227	LXCHOOK_STOP,
	228	LXCHOOK_POSTSTOP,
	229	LXCHOOK_CLONE,
	230	LXCHOOK_DESTROY,
	231	NUM_LXC_HOOKS
	232	};
72d0e1cb	233
811ef482	234	extern char *lxchook_names[NUM_LXC_HOOKS];
7b35f3d6	235
571e6ec8	236	struct lxc_conf {
37903589	237	int is_execute;
571e6ec8	238	char *fstab;
1c30b4ad	239	unsigned int tty;
17919969	240	unsigned int pts;
91480a0f	241	int reboot;
9b8e3c96	242	signed long personality;
571e6ec8 DL	243	struct utsname *utsname;
571e6ec8 DL	244	struct lxc_list cgroup;
f6d3e3e4	245	struct lxc_list id_map;
5f4535a3	246	struct lxc_list network;
368bbc02	247	int auto_mounts;
e7938e9e	248	struct lxc_list mount_list;
81810dd1	249	struct lxc_list caps;
1fb86a7c	250	struct lxc_list keepcaps;
571e6ec8	251	struct lxc_tty_info tty_info;
fe1c5887 CB	252	/* Comma-separated list of lxc.tty.max pty names. */
fe1c5887 CB	253	char *pty_names;
63376d7d	254	struct lxc_console console;
33fcb7a0	255	struct lxc_rootfs rootfs;
7c6ef2a2	256	char *ttydir;
b119f362	257	int close_all_fds;
26ddeedd	258	struct lxc_list hooks[NUM_LXC_HOOKS];
4a85ce2a	259
fe4de9a6	260	char *lsm_aa_profile;
a56e2df9	261	unsigned int lsm_aa_allow_incomplete;
fe4de9a6	262	char *lsm_se_context;
5112cd70	263	int tmp_umount_proc;
1a0e70ac	264	char seccomp; / filename with the seccomp rules */
769872f9	265	#if HAVE_SCMP_FILTER_CTX
d58c6ad0	266	scmp_filter_ctx seccomp_ctx;
769872f9	267	#endif
72d0e1cb	268	int maincmd_fd;
1a0e70ac CB	269	unsigned int autodev; /* if 1, mount and fill a /dev at start */
	270	int haltsignal; /* signal used to halt container */
	271	int rebootsignal; /* signal used to reboot container */
	272	int stopsignal; /* signal used to hard stop container */
	273	char rcfile; / Copy of the top level rcfile we read */
	274
	275	/* Logfile and logleve can be set in a container config file. Those
	276	* function as defaults. The defaults can be overriden by command line.
	277	* However we don't want the command line specified values to be saved
	278	* on c->save_config(). So we store the config file specified values
	279	* here. */
	280	char logfile; / the logfile as specifed in config */
	281	int loglevel; /* loglevel as specifed in config (if any) */
858377e4	282	int logfd;
9f30a190 MM	283
9f30a190 MM	284	int inherit_ns_fd[LXC_NS_MAX];
ee1e7aa0	285
3590152f CB	286	unsigned int start_auto;
3590152f CB	287	unsigned int start_delay;
ee1e7aa0 SG	288	int start_order;
ee1e7aa0 SG	289	struct lxc_list groups;
76a26f55	290	int nbd_idx;
35120d9c	291
a8dfe4e0	292	/* unshare the mount namespace in the monitor */
226dc30e	293	unsigned int monitor_unshare;
a8dfe4e0	294
35120d9c SH	295	/* set to true when rootfs has been setup */
35120d9c SH	296	bool rootfs_setup;
f979ac15 SH	297
	298	/* list of included files */
	299	struct lxc_list includes;
4184c3e1 SH	300	/* config entries which are not "lxc." are aliens /
4184c3e1 SH	301	struct lxc_list aliens;
7c661726 MP	302
	303	/* list of environment variables we'll add to the container when
	304	* started */
	305	struct lxc_list environment;
6b0d5538 SH	306
	307	/* text representation of the config file */
	308	char *unexpanded_config;
	309	size_t unexpanded_len, unexpanded_alloced;
67c660d0 SG	310
	311	/* init command */
	312	char *init_cmd;
56f8ff00	313
72bb04e4 PT	314	/* if running in a new user namespace, the UID/GID that init and COMMAND
72bb04e4 PT	315	* should run under when using lxc-execute */
c5cd20ce PT	316	uid_t init_uid;
c5cd20ce PT	317	gid_t init_gid;
8796becf CB	318
8796becf CB	319	/* indicator if the container will be destroyed on shutdown */
66ffdb1a	320	unsigned int ephemeral;
76d0127f CB	321
	322	/* The facility to pass to syslog. Let's users establish as what type of
	323	* program liblxc is supposed to write to the syslog. */
	324	char *syslog;
5a46f283 CB	325
	326	/* Whether PR_SET_NO_NEW_PRIVS will be set for the container. */
	327	bool no_new_privs;
c6d09e15 WB	328
	329	/* RLIMIT_* limits */
	330	struct lxc_list limits;
7ec2e32a CB	331
	332	/* REMOVE IN LXC 3.0
	333	* Indicator whether the current config file we're using contained any
	334	* legacy configuration keys.
	335	*/
	336	bool contains_legacy_key;
43654d34 CB	337
	338	/* Contains generic info about the cgroup configuration for this
	339	* container. Note that struct lxc_cgroup contains a union. It is only
	340	* valid to access the members of the anonymous "meta" struct within
	341	* that union.
	342	*/
	343	struct lxc_cgroup cgroup_meta;
571e6ec8 DL	344	};
571e6ec8 DL	345
858377e4 SH	346	#ifdef HAVE_TLS
	347	extern __thread struct lxc_conf *current_config;
	348	#else
	349	extern struct lxc_conf *current_config;
	350	#endif
	351
1a0e70ac CB	352	extern int run_lxc_hooks(const char name, char hook, struct lxc_conf *conf,
1a0e70ac CB	353	const char lxcpath, char argv[]);
cc28d0b0	354	extern int detect_shared_rootfs(void);
7b379ab3	355	extern struct lxc_conf *lxc_conf_init(void);
8eb5694b	356	extern void lxc_conf_free(struct lxc_conf *conf);
0c547523	357	extern int pin_rootfs(const char *rootfs);
f6d3e3e4	358	extern int lxc_map_ids(struct lxc_list *idmap, pid_t pid);
5e4a62bf	359	extern int lxc_create_tty(const char name, struct lxc_conf conf);
b0a33c1e	360	extern void lxc_delete_tty(struct lxc_tty_info *tty_info);
72d0e1cb	361	extern int lxc_clear_config_caps(struct lxc_conf *c);
1fb86a7c	362	extern int lxc_clear_config_keepcaps(struct lxc_conf *c);
12a50cc6	363	extern int lxc_clear_cgroups(struct lxc_conf c, const char key);
72d0e1cb	364	extern int lxc_clear_mount_entries(struct lxc_conf *c);
b099e9e9	365	extern int lxc_clear_automounts(struct lxc_conf *c);
12a50cc6	366	extern int lxc_clear_hooks(struct lxc_conf c, const char key);
7d0eb87e	367	extern int lxc_clear_idmaps(struct lxc_conf *c);
ee1e7aa0	368	extern int lxc_clear_groups(struct lxc_conf *c);
ab799c0b	369	extern int lxc_clear_environment(struct lxc_conf *c);
c6d09e15	370	extern int lxc_clear_limits(struct lxc_conf c, const char key);
f0d02950	371	extern int lxc_delete_autodev(struct lxc_handler *handler);
c7b15d1e	372	extern void lxc_clear_includes(struct lxc_conf *conf);
35120d9c SH	373	extern int do_rootfs_setup(struct lxc_conf conf, const char name,
35120d9c SH	374	const char *lxcpath);
d4ef7c50	375	extern int lxc_setup(struct lxc_handler *handler);
c6d09e15	376	extern int setup_resource_limits(struct lxc_list *limits, pid_t pid);
339efad9	377	extern int find_unmapped_nsid(struct lxc_conf *conf, enum idtype idtype);
1a0e70ac CB	378	extern int mapped_hostid(unsigned id, struct lxc_conf *conf,
1a0e70ac CB	379	enum idtype idtype);
c4d10a05	380	extern int chown_mapped_root(char path, struct lxc_conf conf);
54117de5	381	extern int lxc_ttys_shift_ids(struct lxc_conf *c);
c9b7c33e CB	382	extern int userns_exec_1(struct lxc_conf conf, int (fn)(void ), void data,
c9b7c33e CB	383	const char *fn_name);
415a8851 CB	384	extern int userns_exec_full(struct lxc_conf conf, int (fn)(void *),
415a8851 CB	385	void data, const char fn_name);
a17b1e65 SG	386	extern int parse_mntopts(const char mntopts, unsigned long mntflags,
a17b1e65 SG	387	char **mntdata);
5112cd70	388	extern void tmp_proc_unmount(struct lxc_conf *lxc_conf);
1a0e70ac	389	extern void remount_all_slave(void);
97e9cfa0	390	extern void suggest_default_idmap(void);
1a0e70ac CB	391	extern FILE make_anonymous_mount_file(struct lxc_list mount);
	392	extern struct lxc_list sort_cgroup_settings(struct lxc_list cgroup_settings);
	393	extern unsigned long add_required_remount_flags(const char s, const char d,
	394	unsigned long flags);
811ef482 CB	395	extern int run_script(const char name, const char section, const char *script,
811ef482 CB	396	...);
5ae72b98	397
1a0e70ac	398	#endif /* __LXC_CONF_H */