#ifndef __CR_OPTIONS_H__
#define __CR_OPTIONS_H__

#include <stdbool.h>
#include <sys/capability.h>
#include "common/config.h"
#include "common/list.h"
#include "int.h"
#include "image.h"

/* Configuration and CLI parsing order defines */
#define PARSING_GLOBAL_CONF  1
#define PARSING_USER_CONF    2
#define PARSING_ENV_CONF     3
#define PARSING_CMDLINE_CONF 4
#define PARSING_ARGV	     5
#define PARSING_RPC_CONF     6
#define PARSING_LAST	     7

#define SET_CHAR_OPTS(__dest, __src)              \
	do {                                      \
		char *__src_dup = xstrdup(__src); \
		if (!__src_dup)                   \
			abort();                  \
		xfree(opts.__dest);               \
		opts.__dest = __src_dup;          \
	} while (0)

/*
 * CPU capability options.
 */
#define CPU_CAP_NONE	(0u << 0) /* Don't check capability at all */
#define CPU_CAP_FPU	(1u << 0) /* Only FPU capability required */
#define CPU_CAP_CPU	(1u << 1) /* Strict CPU capability required */
#define CPU_CAP_INS	(1u << 2) /* Instructions CPU capability */
#define CPU_CAP_IMAGE	(1u << 3) /* Write capability on dump and read on restore*/
#define CPU_CAP_ALL	(CPU_CAP_FPU | CPU_CAP_CPU | CPU_CAP_INS)
#define CPU_CAP_DEFAULT (CPU_CAP_FPU | CPU_CAP_INS)

struct cg_root_opt {
	struct list_head node;
	char *controller;
	char *newroot;
};

/*
 * Pre-dump variants
 */
#define PRE_DUMP_SPLICE 1 /* Pre-dump using parasite */
#define PRE_DUMP_READ	2 /* Pre-dump using process_vm_readv syscall */

/*
 * Cgroup management options.
 */
#define CG_MODE_IGNORE (0u << 0) /* Zero is important here */
#define CG_MODE_NONE   (1u << 0)
#define CG_MODE_PROPS  (1u << 1)
#define CG_MODE_SOFT   (1u << 2)
#define CG_MODE_FULL   (1u << 3)
#define CG_MODE_STRICT (1u << 4)

#define CG_MODE_DEFAULT (CG_MODE_SOFT)

/*
 * Network locking method
 */
enum NETWORK_LOCK_METHOD {
	NETWORK_LOCK_IPTABLES,
	NETWORK_LOCK_NFTABLES,
	NETWORK_LOCK_SKIP,
};

/**
 * CRIU currently defaults to the iptables locking backend.
 *
 * It is, however, possible to change this by defining
 * NETWORK_LOCK_DEFAULT to a different value on the command-line.
 */
#ifndef NETWORK_LOCK_DEFAULT
#define NETWORK_LOCK_DEFAULT NETWORK_LOCK_IPTABLES
#endif

/*
 * Ghost file size we allow to carry by default.
 */
#define DEFAULT_GHOST_LIMIT (1 << 20)

#define DEFAULT_TIMEOUT 10

enum FILE_VALIDATION_OPTIONS {
	/*
	 * This constant indicates that the file validation should be tried with the
	 * file size method by default.
	 */
	FILE_VALIDATION_FILE_SIZE,

	/*
	 * This constant indicates that the file validation should be tried with the
	 * build-ID method by default.
	 */
	FILE_VALIDATION_BUILD_ID
};

/* This constant dictates which file validation method should be tried by default. */
#define FILE_VALIDATION_DEFAULT FILE_VALIDATION_BUILD_ID

/* This constant dictates that criu use fiemap to copy ghost file by default.*/
#define FIEMAP_DEFAULT 1

struct irmap;

struct irmap_path_opt {
	struct list_head node;
	struct irmap *ir;
};

enum criu_mode {
	CR_UNSET = 0,
	CR_DUMP,
	CR_PRE_DUMP,
	CR_RESTORE,
	CR_LAZY_PAGES,
	CR_CHECK,
	CR_PAGE_SERVER,
	CR_SERVICE,
	CR_SWRK,
	CR_DEDUP,
	CR_CPUINFO,
	CR_EXEC_DEPRECATED,
	CR_SHOW_DEPRECATED,
};

struct cr_options {
	int final_state;
	int check_extra_features;
	int check_experimental_features;
	union {
		int restore_detach;
		bool daemon_mode;
	};
	int restore_sibling;
	bool ext_unix_sk;
	int shell_job;
	int handle_file_locks;
	int tcp_established_ok;
	int tcp_close;
	int evasive_devices;
	int link_remap_ok;
	int log_file_per_pid;
	int pre_dump_mode;
	bool swrk_restore;
	char *output;
	char *root;
	char *pidfile;
	char *freeze_cgroup;
	struct list_head ext_mounts;
	struct list_head inherit_fds;
	struct list_head external;
	struct list_head join_ns;
	char *libdir;
	int use_page_server;
	unsigned short port;
	char *addr;
	int ps_socket;
	int track_mem;
	char *img_parent;
	int auto_dedup;
	unsigned int cpu_cap;
	int force_irmap;
	char **exec_cmd;
	unsigned int manage_cgroups;
	char *new_global_cg_root;
	char *cgroup_props;
	char *cgroup_props_file;
	struct list_head new_cgroup_roots;
	char *cgroup_yard;
	bool autodetect_ext_mounts;
	int enable_external_sharing;
	int enable_external_masters;
	bool aufs; /* auto-detected, not via cli */
	bool overlayfs;
	int ghost_fiemap;
#ifdef CONFIG_BINFMT_MISC_VIRTUALIZED
	bool has_binfmt_misc; /* auto-detected */
#endif
	size_t ghost_limit;
	struct list_head irmap_scan_paths;
	bool lsm_supplied;
	char *lsm_profile;
	char *lsm_mount_context;
	unsigned int timeout;
	unsigned int empty_ns;
	int tcp_skip_in_flight;
	bool lazy_pages;
	char *work_dir;
	int network_lock_method;
	int skip_file_rwx_check;

	/*
	 * When we scheduler for removal some functionality we first
	 * deprecate it and it sits in criu for some time. By default
	 * the deprecated stuff is not working, but it's still possible
	 * to turn one ON while the code is in.
	 */
	int deprecated_ok;
	int display_stats;
	int weak_sysctls;
	int status_fd;
	bool orphan_pts_master;
	int stream;
	pid_t tree_id;
	int log_level;
	char *imgs_dir;
	char *tls_cacert;
	char *tls_cacrl;
	char *tls_cert;
	char *tls_key;
	int tls;
	int tls_no_cn_verify;

	/* This stores which method to use for file validation. */
	int file_validation_method;

	/* Shows the mode criu is running at the moment: dump/pre-dump/restore/... */
	enum criu_mode mode;

	int mntns_compat_mode;

	/* Remember the program name passed to main() so we can use it in
	 * error messages elsewhere.
	 */
	char *argv_0;
	/*
	 * This contains the eUID of the current CRIU user. It
	 * will only be set to a non-zero value if CRIU has
	 * the necessary capabilities to run as non root.
	 * CAP_CHECKPOINT_RESTORE or CAP_SYS_ADMIN
	 */
	uid_t uid;
	/* This contains the value from capget()->effective */
	u32 cap_eff[_LINUX_CAPABILITY_U32S_3];
	/*
	 * If CRIU should be running as non-root with the help of
	 * CAP_CHECKPOINT_RESTORE or CAP_SYS_ADMIN the user should
	 * explicitly request it as it comes with many limitations.
	 */
	int unprivileged;
};

extern struct cr_options opts;
extern char *rpc_cfg_file;

extern int parse_options(int argc, char **argv, bool *usage_error, bool *has_exec_cmd, int state);
extern int check_options(void);
extern void init_opts(void);

#endif /* __CR_OPTIONS_H__ */
