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/*
* User/Kernel Transport IPC API Ioctl/NETLINK/etc
*
* Copyright (C) 2005 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.
*
* NOTE: OSes must implement this API in terms of user's control-plane re-use.
*/
#ifndef ISCSI_IPC_H
#define ISCSI_IPC_H
#if defined(FreeBSD)
#include <sys/_iovec.h>
#endif
#include "iscsi_if.h"
enum {
ISCSI_INT,
ISCSI_STRING,
};
/**
* struct iscsi_ipc - Open-iSCSI Interface for Kernel IPC
*
* All functions allowed to return POSIX kind of error. i.e. 0 - OK, non-zero
* means IPC error and errno set.
*/
struct iscsi_ipc {
char *name;
int ctldev_bufmax;
int (*ctldev_open) (void);
void (*ctldev_close) (void);
int (*ctldev_handle) (void);
int (*sendtargets) (uint64_t transport_handle, uint32_t host_no,
struct sockaddr *addr);
int (*create_session) (uint64_t transport_handle,
uint32_t initial_cmdsn, uint16_t cmds_max,
uint16_t qdepth, uint32_t *out_sid,
uint32_t *out_hostno);
int (*destroy_session) (uint64_t transport_handle, uint32_t sid);
int (*create_conn) (uint64_t transport_handle,
uint32_t sid, uint32_t cid, uint32_t *out_cid);
int (*destroy_conn) (uint64_t transport_handle, uint32_t sid,
uint32_t cid);
int (*bind_conn) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, uint64_t transport_eph,
int is_leading, int *retcode);
int (*set_param) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, enum iscsi_param param,
void *value, int type);
int (*set_host_param) (uint64_t transport_handle, uint32_t host_no,
enum iscsi_host_param param,
void *value, int type);
/* not implemented yet */
int (*get_param) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, enum iscsi_param param,
uint32_t *value, int *retcode);
int (*get_stats) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, char *statsbuf, int statsbuf_max);
int (*start_conn) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, int *retcode);
int (*stop_conn) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, int flag);
int (*read) (char *data, int count);
void (*send_pdu_begin) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, int hdr_size, int data_size);
int (*send_pdu_end) (uint64_t transport_handle, uint32_t sid,
uint32_t cid, int *retcode);
int (*writev) (enum iscsi_uevent_e type, struct iovec *iovp, int count);
int (*recv_pdu_begin) (uint64_t transport_handle, uintptr_t recv_handle,
uintptr_t *pdu_handle, int *pdu_size);
int (*recv_pdu_end) (uint64_t transport_handle, uintptr_t conn_handle,
uintptr_t pdu_handle);
};
#endif /* ISCSI_IPC_H */
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