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/*
* Copyright (C) 2017 Red Hat, Inc.
*
* 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 3 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Gris Ge <fge@redhat.com>
*/
#ifndef __ISCSI_USR_SYSFS_H__
#define __ISCSI_USR_SYSFS_H__
#include <stdint.h>
#include <stdbool.h>
#include "libopeniscsiusr/libopeniscsiusr_common.h"
#define _ISCSI_SYS_SESSION_DIR "/sys/class/iscsi_session"
#define _ISCSI_SYS_CONNECTION_DIR "/sys/class/iscsi_connection"
#define _ISCSI_SYS_HOST_DIR "/sys/class/iscsi_host"
#define _ISCSI_SYS_IFACE_DIR "/sys/class/iscsi_iface"
#define _ISCSI_SYS_TRANSPORT_DIR "/sys/class/iscsi_transport"
#define _SCSI_SYS_HOST_DIR "/sys/class/scsi_host"
/*
* When default_value == NULL, treat no such file as LIB_BUG.
*/
__DLL_LOCAL int _sysfs_prop_get_str(struct iscsi_context *ctx,
const char *dir_path, const char *prop_name,
char *buff, size_t buff_size,
const char *default_value);
int _sysfs_prop_get_u8(struct iscsi_context *ctx, const char *dir_path,
const char *prop_name, uint8_t *val,
uint8_t default_value, bool ignore_error);
int _sysfs_prop_get_u16(struct iscsi_context *ctx, const char *dir_path,
const char *prop_name, uint16_t *val,
uint16_t default_value, bool ignore_error);
/*
* When default_value == UINT32_MAX, treat no such file as LIB_BUG.
*/
__DLL_LOCAL int _sysfs_prop_get_u32(struct iscsi_context *ctx,
const char *dir_path, const char *prop_name,
uint32_t *val, uint32_t default_value,
bool ignore_error);
/*
* When default_value == INT32_MAX, treat no such file as LIB_BUG.
*/
__DLL_LOCAL int _sysfs_prop_get_i32(struct iscsi_context *ctx,
const char *dir_path, const char *prop_name,
int32_t *val, int32_t default_value,
bool ignore_error);
__DLL_LOCAL int _iscsi_host_id_of_session(struct iscsi_context *ctx,
uint32_t sid, uint32_t *host_id);
/*
* iface_kern_id should be char[PATH_MAX]
*/
__DLL_LOCAL int _iscsi_iface_kern_id_of_host_id(struct iscsi_context *ctx,
uint32_t host_id,
char *iface_kern_id);
/*
* The memory of (uint32_t *sids) should be freed by free().
*/
__DLL_LOCAL int _iscsi_sids_get(struct iscsi_context *ctx,
uint32_t **sids, uint32_t *sid_count);
/*
* The memory of (uint32_t *hids) should be freed by free().
*/
__DLL_LOCAL int _iscsi_hids_get(struct iscsi_context *ctx, uint32_t **hids,
uint32_t *hid_count);
__DLL_LOCAL bool _iscsi_transport_is_loaded(const char *transport_name);
#endif /* End of __ISCSI_USR_SYSFS_H__ */
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