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/*
* Copyright (C) 2017-2018 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_IFACE_H__
#define __ISCSI_USR_IFACE_H__
#include "libopeniscsiusr/libopeniscsiusr_common.h"
#include <stdint.h>
#include <netdb.h>
#include <net/if.h>
#define VALUE_MAXVAL 256 /* the maximum length of 223 bytes in the RFC. */
/* ^ VALUE_MAXVAL is copied from usr/idbm.h
* The RFC 3720 only said:
* If not otherwise specified, the maximum length of a simple-value (not
* its encoded representation) is 255 bytes, not including the delimiter
* (comma or zero byte).
*/
#define ISCSI_MAX_IFACE_LEN 65
#define ISCSI_TRANSPORT_NAME_MAXLEN 16
#define ISCSI_MAX_STR_LEN 80
#define ISCSI_HWADDRESS_BUF_SIZE 18
#define TARGET_NAME_MAXLEN VALUE_MAXVAL
/* ^ TODO(Gris Ge): Above 5 constants are copy from usr/config.h, need to
* verify them in linux kernel code
*/
struct iscsi_iface {
/* iscsi iface record name */
char name[ISCSI_MAX_IFACE_LEN];
uint32_t iface_num;
/* network layer iface name (eth0) */
char netdev[IFNAMSIZ];
char ipaddress[NI_MAXHOST];
char subnet_mask[NI_MAXHOST];
char gateway[NI_MAXHOST];
char bootproto[ISCSI_MAX_STR_LEN];
char ipv6_linklocal[NI_MAXHOST];
char ipv6_router[NI_MAXHOST];
char ipv6_autocfg[NI_MAXHOST];
char linklocal_autocfg[NI_MAXHOST];
char router_autocfg[NI_MAXHOST];
// uint8_t prefix_len;
/* ^ prefix_len is removed, as linux kernel has no such sysfs property
* and there is no actual code in usr/ folder set this property
*/
uint16_t vlan_id;
uint8_t vlan_priority;
char vlan_state[ISCSI_MAX_STR_LEN];
char state[ISCSI_MAX_STR_LEN]; /* 0 = disable,
* 1 = enable */
uint16_t mtu;
uint16_t port;
char delayed_ack[ISCSI_MAX_STR_LEN];
char nagle[ISCSI_MAX_STR_LEN];
char tcp_wsf_state[ISCSI_MAX_STR_LEN];
uint8_t tcp_wsf;
uint8_t tcp_timer_scale;
char tcp_timestamp[ISCSI_MAX_STR_LEN];
char dhcp_dns[ISCSI_MAX_STR_LEN];
char dhcp_slp_da[ISCSI_MAX_STR_LEN];
char tos_state[ISCSI_MAX_STR_LEN];
uint8_t tos;
char gratuitous_arp[ISCSI_MAX_STR_LEN];
char dhcp_alt_client_id_state[ISCSI_MAX_STR_LEN];
char dhcp_alt_client_id[ISCSI_MAX_STR_LEN];
char dhcp_req_vendor_id_state[ISCSI_MAX_STR_LEN];
char dhcp_vendor_id_state[ISCSI_MAX_STR_LEN];
char dhcp_vendor_id[ISCSI_MAX_STR_LEN];
char dhcp_learn_iqn[ISCSI_MAX_STR_LEN];
char fragmentation[ISCSI_MAX_STR_LEN];
char incoming_forwarding[ISCSI_MAX_STR_LEN];
uint8_t ttl;
char gratuitous_neighbor_adv[ISCSI_MAX_STR_LEN];
char redirect[ISCSI_MAX_STR_LEN];
char mld[ISCSI_MAX_STR_LEN];
uint32_t flow_label;
uint32_t traffic_class;
uint8_t hop_limit;
uint32_t nd_reachable_tmo;
uint32_t nd_rexmit_time;
uint32_t nd_stale_tmo;
uint8_t dup_addr_detect_cnt;
uint32_t router_adv_link_mtu;
uint16_t def_task_mgmt_tmo;
char header_digest[ISCSI_MAX_STR_LEN];
char data_digest[ISCSI_MAX_STR_LEN];
char immediate_data[ISCSI_MAX_STR_LEN];
char initial_r2t[ISCSI_MAX_STR_LEN];
char data_seq_inorder[ISCSI_MAX_STR_LEN];
char data_pdu_inorder[ISCSI_MAX_STR_LEN];
uint8_t erl;
uint32_t max_recv_dlength;
uint32_t first_burst_len;
uint16_t max_out_r2t;
uint32_t max_burst_len;
char chap_auth[ISCSI_MAX_STR_LEN];
char bidi_chap[ISCSI_MAX_STR_LEN];
char strict_login_comp[ISCSI_MAX_STR_LEN];
char discovery_auth[ISCSI_MAX_STR_LEN];
char discovery_logout[ISCSI_MAX_STR_LEN];
char port_state[ISCSI_MAX_STR_LEN];
char port_speed[ISCSI_MAX_STR_LEN];
/*
* TODO: we may have to make this bigger and interconnect
* specific for infiniband
*/
char hwaddress[ISCSI_HWADDRESS_BUF_SIZE];
char transport_name[ISCSI_TRANSPORT_NAME_MAXLEN];
/*
* This is only used for boot now, but the iser guys
* can use this for their virtualization idea.
*/
char alias[TARGET_NAME_MAXLEN + 1];
char iname[TARGET_NAME_MAXLEN + 1];
bool is_ipv6;
};
__DLL_LOCAL int _iscsi_iface_get_from_sysfs(struct iscsi_context *ctx,
uint32_t host_id, uint32_t sid,
struct iscsi_iface **iface);
__DLL_LOCAL bool _iface_is_valid(struct iscsi_iface *iface);
#endif /* End of __ISCSI_USR_IFACE_H__ */
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