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// Copyright © 2013, 2014, The Go-LXC Authors. All rights reserved.
// Use of this source code is governed by a LGPLv2.1
// license that can be found in the LICENSE file.

#define VERSION_AT_LEAST(major, minor, micro)							\
	((LXC_DEVEL == 1) || (!(major > LXC_VERSION_MAJOR ||					\
	major == LXC_VERSION_MAJOR && minor > LXC_VERSION_MINOR ||				\
	major == LXC_VERSION_MAJOR && minor == LXC_VERSION_MINOR && micro > LXC_VERSION_MICRO)))

extern bool go_lxc_add_device_node(struct lxc_container *c, const char *src_path, const char *dest_path);
extern void go_lxc_clear_config(struct lxc_container *c);
extern bool go_lxc_clear_config_item(struct lxc_container *c, const char *key);
extern bool go_lxc_clone(struct lxc_container *c, const char *newname, const char *lxcpath, int flags, const char *bdevtype);
extern bool go_lxc_console(struct lxc_container *c, int ttynum, int stdinfd, int stdoutfd, int stderrfd, int escape);
extern bool go_lxc_create(struct lxc_container *c, const char *t, const char *bdevtype, int flags, char * const argv[]);
extern bool go_lxc_defined(struct lxc_container *c);
extern bool go_lxc_destroy(struct lxc_container *c);
extern bool go_lxc_destroy_with_snapshots(struct lxc_container *c);
extern bool go_lxc_freeze(struct lxc_container *c);
extern bool go_lxc_load_config(struct lxc_container *c, const char *alt_file);
extern bool go_lxc_may_control(struct lxc_container *c);
extern bool go_lxc_reboot(struct lxc_container *c);
extern bool go_lxc_remove_device_node(struct lxc_container *c, const char *src_path, const char *dest_path);
extern bool go_lxc_rename(struct lxc_container *c, const char *newname);
extern bool go_lxc_running(struct lxc_container *c);
extern bool go_lxc_save_config(struct lxc_container *c, const char *alt_file);
extern bool go_lxc_set_cgroup_item(struct lxc_container *c, const char *key, const char *value);
extern bool go_lxc_set_config_item(struct lxc_container *c, const char *key, const char *value);
extern bool go_lxc_set_config_path(struct lxc_container *c, const char *path);
extern bool go_lxc_shutdown(struct lxc_container *c, int timeout);
extern bool go_lxc_snapshot_destroy(struct lxc_container *c, const char *snapname);
extern bool go_lxc_snapshot_destroy_all(struct lxc_container *c);
extern bool go_lxc_snapshot_restore(struct lxc_container *c, const char *snapname, const char *newname);
extern bool go_lxc_start(struct lxc_container *c, int useinit, char * const argv[]);
extern bool go_lxc_stop(struct lxc_container *c);
extern bool go_lxc_unfreeze(struct lxc_container *c);
extern bool go_lxc_wait(struct lxc_container *c, const char *state, int timeout);
extern bool go_lxc_want_close_all_fds(struct lxc_container *c, bool state);
extern bool go_lxc_want_daemonize(struct lxc_container *c, bool state);
extern char* go_lxc_config_file_name(struct lxc_container *c);
extern char* go_lxc_get_cgroup_item(struct lxc_container *c, const char *key);
extern char* go_lxc_get_config_item(struct lxc_container *c, const char *key);
extern char** go_lxc_get_interfaces(struct lxc_container *c);
extern char** go_lxc_get_ips(struct lxc_container *c, const char *interface, const char *family, int scope);
extern char* go_lxc_get_keys(struct lxc_container *c, const char *key);
extern char* go_lxc_get_running_config_item(struct lxc_container *c, const char *key);
extern const char* go_lxc_get_config_path(struct lxc_container *c);
extern const char* go_lxc_state(struct lxc_container *c);
extern int go_lxc_attach_run_wait(struct lxc_container *c,
		bool clear_env,
		int namespaces,
		long personality,
		uid_t uid, gid_t gid,
		int stdinfd, int stdoutfd, int stderrfd,
		char *initial_cwd,
		char **extra_env_vars,
		char **extra_keep_env,
		const char * const argv[]);
extern int go_lxc_attach(struct lxc_container *c,
		bool clear_env,
		int namespaces,
		long personality,
		uid_t uid, gid_t gid,
		int stdinfd, int stdoutfd, int stderrfd,
		char *initial_cwd,
		char **extra_env_vars,
		char **extra_keep_env);
extern int go_lxc_attach_no_wait(struct lxc_container *c,
		bool clear_env,
		int namespaces,
		long personality,
		uid_t uid, gid_t gid,
		int stdinfd, int stdoutfd, int stderrfd,
		char *initial_cwd,
		char **extra_env_vars,
		char **extra_keep_env,
		const char * const argv[],
		pid_t *attached_pid);
extern int go_lxc_console_getfd(struct lxc_container *c, int ttynum);
extern int go_lxc_snapshot_list(struct lxc_container *c, struct lxc_snapshot **ret);
extern int go_lxc_snapshot(struct lxc_container *c);
extern pid_t go_lxc_init_pid(struct lxc_container *c);
extern bool go_lxc_checkpoint(struct lxc_container *c, char *directory, bool stop, bool verbose);
extern bool go_lxc_restore(struct lxc_container *c, char *directory, bool verbose);
extern bool go_lxc_config_item_is_supported(const char *key);
extern bool go_lxc_has_api_extension(const char *extension);

/* n.b. that we're just adding the fields here to shorten the definition
 * of go_lxc_migrate; in the case where we don't have the ->migrate API call,
 * we don't want to have to pass all the arguments in to let conditional
 * compilation handle things, but the call will still fail
 */
#if !VERSION_AT_LEAST(2, 0, 0)
struct migrate_opts {
	char *directory;
	bool verbose;
	bool stop;
	char *predump_dir;
};
#endif

/* This is a struct that we can add "extra" (i.e. options added after 2.0.0)
 * migrate options to, so that we don't have to have a massive function
 * signature when the list of options grows.
 */
struct extra_migrate_opts {
	bool preserves_inodes;
	char *action_script;
	uint64_t ghost_limit;
	uint64_t features_to_check;
};
int go_lxc_migrate(struct lxc_container *c, unsigned int cmd, struct migrate_opts *opts, struct extra_migrate_opts *extras);

extern bool go_lxc_attach_interface(struct lxc_container *c, const char *dev, const char *dst_dev);
extern bool go_lxc_detach_interface(struct lxc_container *c, const char *dev, const char *dst_dev);

#if !VERSION_AT_LEAST(3, 0, 0)
struct lxc_console_log {
	bool clear;
	bool read;
	uint64_t *read_max;
	char *data;
};
#endif

extern int go_lxc_console_log(struct lxc_container *c, struct lxc_console_log *log);
extern int go_lxc_error_num(struct lxc_container *c);