[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 "ringbuf.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;
	unsigned int log_rotate;
	char name[MAXPATHLEN];
	struct termios *tios;
	struct lxc_tty_state *tty_state;

	/* size of the ringbuffer */
	uint64_t buffer_size;

	/* path to the log file for the ringbuffer */
	char *buffer_log_file;

	/* fd to the log file for the ringbuffer */
	int buffer_log_file_fd;

	/* the in-memory ringbuffer */
	struct lxc_ringbuf ringbuf;
};

/*
 * 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,
	LXCHOOK_START_HOST,
	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;

	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;

	/* default command for lxc-execute */
	char *execute_cmd;

	/* 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;

	char *inherit_ns[LXC_NS_MAX];
};

#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 lxc_setup_parent(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,
		      ...);
extern int in_caplist(int cap, struct lxc_list *caps);

#endif /* __LXC_CONF_H */
Commit	Line	Data
	1	/*
	2	* lxc: linux Container library
	3	*
	4	* (C) Copyright IBM Corp. 2007, 2008
	5	*
	6	* Authors:
	7	* Daniel Lezcano <daniel.lezcano at free.fr>
	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
	21	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	22	*/
	23	#ifndef __LXC_CONF_H
	24	#define __LXC_CONF_H
	25
	26	#include "config.h"
	27
	28	#include <stdio.h>
	29	#include <net/if.h>
	30	#include <netinet/in.h>
	31	#include <sys/param.h>
	32	#include <sys/types.h>
	33	#if HAVE_SYS_RESOURCE_H
	34	#include <sys/resource.h>
	35	#endif
	36	#include <stdbool.h>
	37
	38	#include "list.h"
	39	#include "ringbuf.h"
	40	#include "start.h" /* for lxc_handler */
	41
	42	#if HAVE_SCMP_FILTER_CTX
	43	typedef void * scmp_filter_ctx;
	44	#endif
	45
	46	/* worth moving to configure.ac? */
	47	#define subuidfile "/etc/subuid"
	48	#define subgidfile "/etc/subgid"
	49
	50	/*
	51	* Defines a generic struct to configure the control group. It is up to the
	52	* programmer to specify the right subsystem.
	53	* @subsystem : the targeted subsystem
	54	* @value : the value to set
	55	*
	56	* @controllers : The controllers to use for this container.
	57	* @dir : The name of the directory containing the container's cgroup.
	58	* Not that this is a per-container setting.
	59	*/
	60	struct lxc_cgroup {
	61	union {
	62	/* information about a specific controller */
	63	struct /* controller */ {
	64	char *subsystem;
	65	char *value;
	66	};
	67
	68	/* meta information about cgroup configuration */
	69	struct /* meta */ {
	70	char *controllers;
	71	char *dir;
	72	};
	73	};
	74	};
	75
	76	#if !HAVE_SYS_RESOURCE_H
	77	# define RLIM_INFINITY ((unsigned long)-1)
	78	struct rlimit {
	79	unsigned long rlim_cur;
	80	unsigned long rlim_max;
	81	};
	82	#endif
	83	/*
	84	* Defines a structure to configure resource limits to set via setrlimit().
	85	* @resource : the resource name in lowercase without the RLIMIT_ prefix
	86	* @limit : the limit to set
	87	*/
	88	struct lxc_limit {
	89	char *resource;
	90	struct rlimit limit;
	91	};
	92
	93	enum idtype {
	94	ID_TYPE_UID,
	95	ID_TYPE_GID
	96	};
	97
	98	/*
	99	* id_map is an id map entry. Form in confile is:
	100	* lxc.idmap = u 0 9800 100
	101	* lxc.idmap = u 1000 9900 100
	102	* lxc.idmap = g 0 9800 100
	103	* lxc.idmap = g 1000 9900 100
	104	* meaning the container can use uids and gids 0-99 and 1000-1099,
	105	* with [ug]id 0 mapping to [ug]id 9800 on the host, and [ug]id 1000 to
	106	* [ug]id 9900 on the host.
	107	*/
	108	struct id_map {
	109	enum idtype idtype;
	110	unsigned long hostid, nsid, range;
	111	};
	112
	113	/*
	114	* Defines a structure containing a pty information for
	115	* virtualizing a tty
	116	* @name : the path name of the slave pty side
	117	* @master : the file descriptor of the master
	118	* @slave : the file descriptor of the slave
	119	*/
	120	struct lxc_pty_info {
	121	char name[MAXPATHLEN];
	122	int master;
	123	int slave;
	124	int busy;
	125	};
	126
	127	/*
	128	* Defines the number of tty configured and contains the
	129	* instantiated ptys
	130	* @nbtty = number of configured ttys
	131	*/
	132	struct lxc_tty_info {
	133	int nbtty;
	134	struct lxc_pty_info *pty_info;
	135	};
	136
	137	struct lxc_tty_state;
	138
	139	/*
	140	* Defines the structure to store the console information
	141	* @peer : the file descriptor put/get console traffic
	142	* @name : the file name of the slave pty
	143	*/
	144	struct lxc_console {
	145	int slave;
	146	int master;
	147	int peer;
	148	struct lxc_pty_info peerpty;
	149	struct lxc_epoll_descr *descr;
	150	char *path;
	151	char *log_path;
	152	int log_fd;
	153	unsigned int log_rotate;
	154	char name[MAXPATHLEN];
	155	struct termios *tios;
	156	struct lxc_tty_state *tty_state;
	157
	158	/* size of the ringbuffer */
	159	uint64_t buffer_size;
	160
	161	/* path to the log file for the ringbuffer */
	162	char *buffer_log_file;
	163
	164	/* fd to the log file for the ringbuffer */
	165	int buffer_log_file_fd;
	166
	167	/* the in-memory ringbuffer */
	168	struct lxc_ringbuf ringbuf;
	169	};
	170
	171	/*
	172	* Defines a structure to store the rootfs location, the
	173	* optionals pivot_root, rootfs mount paths
	174	* @path : the rootfs source (directory or device)
	175	* @mount : where it is mounted
	176	* @options : mount options
	177	* @bev_type : optional backing store type
	178	*/
	179	struct lxc_rootfs {
	180	char *path;
	181	char *mount;
	182	char *options;
	183	char *bdev_type;
	184	};
	185
	186	/*
	187	* Automatic mounts for LXC to perform inside the container
	188	*/
	189	enum {
	190	LXC_AUTO_PROC_RW = 0x001, /* /proc read-write */
	191	LXC_AUTO_PROC_MIXED = 0x002, /* /proc/sys and /proc/sysrq-trigger read-only */
	192	LXC_AUTO_PROC_MASK = 0x003,
	193
	194	LXC_AUTO_SYS_RW = 0x004, /* /sys */
	195	LXC_AUTO_SYS_RO = 0x008, /* /sys read-only */
	196	LXC_AUTO_SYS_MIXED = 0x00C, /* /sys read-only and /sys/class/net read-write */
	197	LXC_AUTO_SYS_MASK = 0x00C,
	198
	199	LXC_AUTO_CGROUP_RO = 0x010, /* /sys/fs/cgroup (partial mount, read-only) */
	200	LXC_AUTO_CGROUP_RW = 0x020, /* /sys/fs/cgroup (partial mount, read-write) */
	201	LXC_AUTO_CGROUP_MIXED = 0x030, /* /sys/fs/cgroup (partial mount, paths r/o, cgroup r/w) */
	202	LXC_AUTO_CGROUP_FULL_RO = 0x040, /* /sys/fs/cgroup (full mount, read-only) */
	203	LXC_AUTO_CGROUP_FULL_RW = 0x050, /* /sys/fs/cgroup (full mount, read-write) */
	204	LXC_AUTO_CGROUP_FULL_MIXED = 0x060, /* /sys/fs/cgroup (full mount, parent r/o, own r/w) */
	205	/* These are defined in such a way as to retain
	206	* binary compatibility with earlier versions of
	207	* this code. If the previous mask is applied,
	208	* both of these will default back to the _MIXED
	209	* variants, which is safe. */
	210	LXC_AUTO_CGROUP_NOSPEC = 0x0B0, /* /sys/fs/cgroup (partial mount, r/w or mixed, depending on caps) */
	211	LXC_AUTO_CGROUP_FULL_NOSPEC = 0x0E0, /* /sys/fs/cgroup (full mount, r/w or mixed, depending on caps) */
	212	LXC_AUTO_CGROUP_MASK = 0x0F0,
	213
	214	LXC_AUTO_ALL_MASK = 0x0FF, /* all known settings */
	215	};
	216
	217	/*
	218	* Defines the global container configuration
	219	* @rootfs : root directory to run the container
	220	* @mount : list of mount points
	221	* @tty : numbers of tty
	222	* @pts : new pts instance
	223	* @mount_list : list of mount point (alternative to fstab file)
	224	* @network : network configuration
	225	* @utsname : container utsname
	226	* @fstab : path to a fstab file format
	227	* @caps : list of the capabilities to drop
	228	* @keepcaps : list of the capabilities to keep
	229	* @tty_info : tty data
	230	* @console : console data
	231	* @ttydir : directory (under /dev) in which to create console and ttys
	232	* @lsm_aa_profile : apparmor profile to switch to or NULL
	233	* @lsm_se_context : selinux type to switch to or NULL
	234	*/
	235	enum lxchooks {
	236	LXCHOOK_PRESTART,
	237	LXCHOOK_PREMOUNT,
	238	LXCHOOK_MOUNT,
	239	LXCHOOK_AUTODEV,
	240	LXCHOOK_START,
	241	LXCHOOK_STOP,
	242	LXCHOOK_POSTSTOP,
	243	LXCHOOK_CLONE,
	244	LXCHOOK_DESTROY,
	245	LXCHOOK_START_HOST,
	246	NUM_LXC_HOOKS
	247	};
	248
	249	extern char *lxchook_names[NUM_LXC_HOOKS];
	250
	251	struct lxc_conf {
	252	int is_execute;
	253	char *fstab;
	254	unsigned int tty;
	255	unsigned int pts;
	256	int reboot;
	257	signed long personality;
	258	struct utsname *utsname;
	259	struct lxc_list cgroup;
	260	struct lxc_list id_map;
	261	struct lxc_list network;
	262	int auto_mounts;
	263	struct lxc_list mount_list;
	264	struct lxc_list caps;
	265	struct lxc_list keepcaps;
	266	struct lxc_tty_info tty_info;
	267	/* Comma-separated list of lxc.tty.max pty names. */
	268	char *pty_names;
	269	struct lxc_console console;
	270	struct lxc_rootfs rootfs;
	271	char *ttydir;
	272	int close_all_fds;
	273	struct lxc_list hooks[NUM_LXC_HOOKS];
	274
	275	char *lsm_aa_profile;
	276	unsigned int lsm_aa_allow_incomplete;
	277	char *lsm_se_context;
	278	int tmp_umount_proc;
	279	char seccomp; / filename with the seccomp rules */
	280	#if HAVE_SCMP_FILTER_CTX
	281	scmp_filter_ctx seccomp_ctx;
	282	#endif
	283	int maincmd_fd;
	284	unsigned int autodev; /* if 1, mount and fill a /dev at start */
	285	int haltsignal; /* signal used to halt container */
	286	int rebootsignal; /* signal used to reboot container */
	287	int stopsignal; /* signal used to hard stop container */
	288	char rcfile; / Copy of the top level rcfile we read */
	289
	290	/* Logfile and logleve can be set in a container config file. Those
	291	* function as defaults. The defaults can be overriden by command line.
	292	* However we don't want the command line specified values to be saved
	293	* on c->save_config(). So we store the config file specified values
	294	* here. */
	295	char logfile; / the logfile as specifed in config */
	296	int loglevel; /* loglevel as specifed in config (if any) */
	297	int logfd;
	298
	299	unsigned int start_auto;
	300	unsigned int start_delay;
	301	int start_order;
	302	struct lxc_list groups;
	303	int nbd_idx;
	304
	305	/* unshare the mount namespace in the monitor */
	306	unsigned int monitor_unshare;
	307
	308	/* set to true when rootfs has been setup */
	309	bool rootfs_setup;
	310
	311	/* list of included files */
	312	struct lxc_list includes;
	313	/* config entries which are not "lxc." are aliens /
	314	struct lxc_list aliens;
	315
	316	/* list of environment variables we'll add to the container when
	317	* started */
	318	struct lxc_list environment;
	319
	320	/* text representation of the config file */
	321	char *unexpanded_config;
	322	size_t unexpanded_len, unexpanded_alloced;
	323
	324	/* default command for lxc-execute */
	325	char *execute_cmd;
	326
	327	/* init command */
	328	char *init_cmd;
	329
	330	/* if running in a new user namespace, the UID/GID that init and COMMAND
	331	* should run under when using lxc-execute */
	332	uid_t init_uid;
	333	gid_t init_gid;
	334
	335	/* indicator if the container will be destroyed on shutdown */
	336	unsigned int ephemeral;
	337
	338	/* The facility to pass to syslog. Let's users establish as what type of
	339	* program liblxc is supposed to write to the syslog. */
	340	char *syslog;
	341
	342	/* Whether PR_SET_NO_NEW_PRIVS will be set for the container. */
	343	bool no_new_privs;
	344
	345	/* RLIMIT_* limits */
	346	struct lxc_list limits;
	347
	348	/* REMOVE IN LXC 3.0
	349	* Indicator whether the current config file we're using contained any
	350	* legacy configuration keys.
	351	*/
	352	bool contains_legacy_key;
	353
	354	/* Contains generic info about the cgroup configuration for this
	355	* container. Note that struct lxc_cgroup contains a union. It is only
	356	* valid to access the members of the anonymous "meta" struct within
	357	* that union.
	358	*/
	359	struct lxc_cgroup cgroup_meta;
	360
	361	char *inherit_ns[LXC_NS_MAX];
	362	};
	363
	364	#ifdef HAVE_TLS
	365	extern __thread struct lxc_conf *current_config;
	366	#else
	367	extern struct lxc_conf *current_config;
	368	#endif
	369
	370	extern int run_lxc_hooks(const char name, char hook, struct lxc_conf *conf,
	371	const char lxcpath, char argv[]);
	372	extern int detect_shared_rootfs(void);
	373	extern struct lxc_conf *lxc_conf_init(void);
	374	extern void lxc_conf_free(struct lxc_conf *conf);
	375	extern int pin_rootfs(const char *rootfs);
	376	extern int lxc_map_ids(struct lxc_list *idmap, pid_t pid);
	377	extern int lxc_create_tty(const char name, struct lxc_conf conf);
	378	extern void lxc_delete_tty(struct lxc_tty_info *tty_info);
	379	extern int lxc_clear_config_caps(struct lxc_conf *c);
	380	extern int lxc_clear_config_keepcaps(struct lxc_conf *c);
	381	extern int lxc_clear_cgroups(struct lxc_conf c, const char key);
	382	extern int lxc_clear_mount_entries(struct lxc_conf *c);
	383	extern int lxc_clear_automounts(struct lxc_conf *c);
	384	extern int lxc_clear_hooks(struct lxc_conf c, const char key);
	385	extern int lxc_clear_idmaps(struct lxc_conf *c);
	386	extern int lxc_clear_groups(struct lxc_conf *c);
	387	extern int lxc_clear_environment(struct lxc_conf *c);
	388	extern int lxc_clear_limits(struct lxc_conf c, const char key);
	389	extern int lxc_delete_autodev(struct lxc_handler *handler);
	390	extern void lxc_clear_includes(struct lxc_conf *conf);
	391	extern int do_rootfs_setup(struct lxc_conf conf, const char name,
	392	const char *lxcpath);
	393	extern int lxc_setup(struct lxc_handler *handler);
	394	extern int lxc_setup_parent(struct lxc_handler *handler);
	395	extern int setup_resource_limits(struct lxc_list *limits, pid_t pid);
	396	extern int find_unmapped_nsid(struct lxc_conf *conf, enum idtype idtype);
	397	extern int mapped_hostid(unsigned id, struct lxc_conf *conf,
	398	enum idtype idtype);
	399	extern int chown_mapped_root(char path, struct lxc_conf conf);
	400	extern int lxc_ttys_shift_ids(struct lxc_conf *c);
	401	extern int userns_exec_1(struct lxc_conf conf, int (fn)(void ), void data,
	402	const char *fn_name);
	403	extern int userns_exec_full(struct lxc_conf conf, int (fn)(void *),
	404	void data, const char fn_name);
	405	extern int parse_mntopts(const char mntopts, unsigned long mntflags,
	406	char **mntdata);
	407	extern void tmp_proc_unmount(struct lxc_conf *lxc_conf);
	408	extern void remount_all_slave(void);
	409	extern void suggest_default_idmap(void);
	410	extern FILE make_anonymous_mount_file(struct lxc_list mount);
	411	extern struct lxc_list sort_cgroup_settings(struct lxc_list cgroup_settings);
	412	extern unsigned long add_required_remount_flags(const char s, const char d,
	413	unsigned long flags);
	414	extern int run_script(const char name, const char section, const char *script,
	415	...);
	416	extern int in_caplist(int cap, struct lxc_list *caps);
	417
	418	#endif /* __LXC_CONF_H */