/*

 * iSCSI Daemon/Admin Management IPC

 *

 * Copyright (C) 2004 Dmitry Yusupov, Alex Aizman

 * maintained by open-iscsi@googlegroups.com

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published

 * by the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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

 * General Public License for more details.

 *

 * See the file COPYING included with this distribution for more details.

 */

#ifndef MGMT_IPC_H

#define MGMT_IPC_H

#include "types.h"

#include "iscsi_if.h"

#include "config.h"

#define ISCSIADM_NAMESPACE	"ISCSIADM_ABSTRACT_NAMESPACE"

#define PEERUSER_MAX		64

typedef enum iscsiadm_cmd {

	MGMT_IPC_UNKNOWN		= 0,

	MGMT_IPC_SESSION_LOGIN		= 1,

	MGMT_IPC_SESSION_LOGOUT		= 2,

	MGMT_IPC_SESSION_ACTIVESTAT	= 4,

	MGMT_IPC_CONN_ADD		= 5,

	MGMT_IPC_CONN_REMOVE		= 6,

	MGMT_IPC_SESSION_STATS		= 7,

	MGMT_IPC_CONFIG_INAME		= 8,

	MGMT_IPC_CONFIG_IALIAS		= 9,

	MGMT_IPC_CONFIG_FILE		= 10,

	MGMT_IPC_IMMEDIATE_STOP		= 11,

	MGMT_IPC_SESSION_SYNC		= 12,

	MGMT_IPC_SESSION_INFO		= 13,

	MGMT_IPC_ISNS_DEV_ATTR_QUERY	= 14,

	MGMT_IPC_SEND_TARGETS		= 15,

	MGMT_IPC_NOTIFY_ADD_NODE	= 16,

	MGMT_IPC_NOTIFY_DEL_NODE	= 17,

	MGMT_IPC_NOTIFY_ADD_PORTAL	= 18,

	MGMT_IPC_NOTIFY_DEL_PORTAL	= 19,

	__MGMT_IPC_MAX_COMMAND

} iscsiadm_cmd_e;

/* IPC Request */

typedef struct iscsiadm_req {

	iscsiadm_cmd_e command;

	uint32_t payload_len;

	union {

		/* messages */

		struct ipc_msg_session {

			int sid;

			node_rec_t rec;

		} session;

		struct ipc_msg_conn {

			int sid;

			int cid;

		} conn;

		struct ipc_msg_send_targets {

			int host_no;

			int do_login;

			struct sockaddr_storage ss;

		} st;

		struct ipc_msg_set_host_param {

			int host_no;

			int param;

			/* TODO: make this variable len to support */

			char value[IFNAMSIZ + 1];

		} set_host_param;

	} u;

} iscsiadm_req_t;

/* IPC Response */

typedef struct iscsiadm_rsp {

	iscsiadm_cmd_e command;

	int err;	/* ISCSI_ERR value */

	union {

#define MGMT_IPC_GETSTATS_BUF_MAX	(sizeof(struct iscsi_uevent) + \

					sizeof(struct iscsi_stats) + \

					sizeof(struct iscsi_stats_custom) * \

						ISCSI_STATS_CUSTOM_MAX)

		struct ipc_msg_getstats {

			struct iscsi_uevent ev;

			struct iscsi_stats stats;

			char custom[sizeof(struct iscsi_stats_custom) *

					ISCSI_STATS_CUSTOM_MAX];

		} getstats;

		struct ipc_msg_config {

			char var[VALUE_MAXLEN];

		} config;

		struct ipc_msg_session_state {

			int session_state;

			int conn_state;

		} session_state;

	} u;

} iscsiadm_rsp_t;

struct queue_task;

typedef int mgmt_ipc_fn_t(struct queue_task *);

struct queue_task;

void mgmt_ipc_write_rsp(struct queue_task *qtask, int err);

int mgmt_ipc_listen(void);

int mgmt_ipc_systemd(void);

void mgmt_ipc_close(int fd);

void mgmt_ipc_handle(int accept_fd);

#endif /* MGMT_IPC_H */