1 /* 2 * iSCSI User/Kernel Shares (Defines, Constants, Protocol definitions, etc) 3 * 4 * Copyright (C) 2005 Dmitry Yusupov 5 * Copyright (C) 2005 Alex Aizman 6 * maintained by open-iscsi@googlegroups.com 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published 10 * by the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * See the file COPYING included with this distribution for more details. 19 */ 20 21 #ifndef ISCSI_IF_H 22 #define ISCSI_IF_H 23 24 #include <scsi/iscsi_proto.h> 25 #include <linux/in.h> 26 #include <linux/in6.h> 27 28 #define ISCSI_NL_GRP_ISCSID 1 29 #define ISCSI_NL_GRP_UIP 2 30 31 #define UEVENT_BASE 10 32 #define KEVENT_BASE 100 33 #define ISCSI_ERR_BASE 1000 34 35 enum iscsi_uevent_e { 36 ISCSI_UEVENT_UNKNOWN = 0, 37 38 /* down events */ 39 ISCSI_UEVENT_CREATE_SESSION = UEVENT_BASE + 1, 40 ISCSI_UEVENT_DESTROY_SESSION = UEVENT_BASE + 2, 41 ISCSI_UEVENT_CREATE_CONN = UEVENT_BASE + 3, 42 ISCSI_UEVENT_DESTROY_CONN = UEVENT_BASE + 4, 43 ISCSI_UEVENT_BIND_CONN = UEVENT_BASE + 5, 44 ISCSI_UEVENT_SET_PARAM = UEVENT_BASE + 6, 45 ISCSI_UEVENT_START_CONN = UEVENT_BASE + 7, 46 ISCSI_UEVENT_STOP_CONN = UEVENT_BASE + 8, 47 ISCSI_UEVENT_SEND_PDU = UEVENT_BASE + 9, 48 ISCSI_UEVENT_GET_STATS = UEVENT_BASE + 10, 49 ISCSI_UEVENT_GET_PARAM = UEVENT_BASE + 11, 50 51 ISCSI_UEVENT_TRANSPORT_EP_CONNECT = UEVENT_BASE + 12, 52 ISCSI_UEVENT_TRANSPORT_EP_POLL = UEVENT_BASE + 13, 53 ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT = UEVENT_BASE + 14, 54 55 ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15, 56 ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16, 57 ISCSI_UEVENT_UNBIND_SESSION = UEVENT_BASE + 17, 58 ISCSI_UEVENT_CREATE_BOUND_SESSION = UEVENT_BASE + 18, 59 ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST = UEVENT_BASE + 19, 60 61 ISCSI_UEVENT_PATH_UPDATE = UEVENT_BASE + 20, 62 ISCSI_UEVENT_SET_IFACE_PARAMS = UEVENT_BASE + 21, 63 ISCSI_UEVENT_PING = UEVENT_BASE + 22, 64 ISCSI_UEVENT_GET_CHAP = UEVENT_BASE + 23, 65 ISCSI_UEVENT_DELETE_CHAP = UEVENT_BASE + 24, 66 67 /* up events */ 68 ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1, 69 ISCSI_KEVENT_CONN_ERROR = KEVENT_BASE + 2, 70 ISCSI_KEVENT_IF_ERROR = KEVENT_BASE + 3, 71 ISCSI_KEVENT_DESTROY_SESSION = KEVENT_BASE + 4, 72 ISCSI_KEVENT_UNBIND_SESSION = KEVENT_BASE + 5, 73 ISCSI_KEVENT_CREATE_SESSION = KEVENT_BASE + 6, 74 75 ISCSI_KEVENT_PATH_REQ = KEVENT_BASE + 7, 76 ISCSI_KEVENT_IF_DOWN = KEVENT_BASE + 8, 77 ISCSI_KEVENT_CONN_LOGIN_STATE = KEVENT_BASE + 9, 78 ISCSI_KEVENT_HOST_EVENT = KEVENT_BASE + 10, 79 ISCSI_KEVENT_PING_COMP = KEVENT_BASE + 11, 80 }; 81 82 enum iscsi_tgt_dscvr { 83 ISCSI_TGT_DSCVR_SEND_TARGETS = 1, 84 ISCSI_TGT_DSCVR_ISNS = 2, 85 ISCSI_TGT_DSCVR_SLP = 3, 86 }; 87 88 enum iscsi_host_event_code { 89 ISCSI_EVENT_LINKUP = 1, 90 ISCSI_EVENT_LINKDOWN, 91 /* must always be last */ 92 ISCSI_EVENT_MAX, 93 }; 94 95 struct iscsi_uevent { 96 uint32_t type; /* k/u events type */ 97 uint32_t iferror; /* carries interface or resource errors */ 98 uint64_t transport_handle; 99 100 union { 101 /* messages u -> k */ 102 struct msg_create_session { 103 uint32_t initial_cmdsn; 104 uint16_t cmds_max; 105 uint16_t queue_depth; 106 } c_session; 107 struct msg_create_bound_session { 108 uint64_t ep_handle; 109 uint32_t initial_cmdsn; 110 uint16_t cmds_max; 111 uint16_t queue_depth; 112 } c_bound_session; 113 struct msg_destroy_session { 114 uint32_t sid; 115 } d_session; 116 struct msg_create_conn { 117 uint32_t sid; 118 uint32_t cid; 119 } c_conn; 120 struct msg_bind_conn { 121 uint32_t sid; 122 uint32_t cid; 123 uint64_t transport_eph; 124 uint32_t is_leading; 125 } b_conn; 126 struct msg_destroy_conn { 127 uint32_t sid; 128 uint32_t cid; 129 } d_conn; 130 struct msg_send_pdu { 131 uint32_t sid; 132 uint32_t cid; 133 uint32_t hdr_size; 134 uint32_t data_size; 135 } send_pdu; 136 struct msg_set_param { 137 uint32_t sid; 138 uint32_t cid; 139 uint32_t param; /* enum iscsi_param */ 140 uint32_t len; 141 } set_param; 142 struct msg_start_conn { 143 uint32_t sid; 144 uint32_t cid; 145 } start_conn; 146 struct msg_stop_conn { 147 uint32_t sid; 148 uint32_t cid; 149 uint64_t conn_handle; 150 uint32_t flag; 151 } stop_conn; 152 struct msg_get_stats { 153 uint32_t sid; 154 uint32_t cid; 155 } get_stats; 156 struct msg_transport_connect { 157 uint32_t non_blocking; 158 } ep_connect; 159 struct msg_transport_connect_through_host { 160 uint32_t host_no; 161 uint32_t non_blocking; 162 } ep_connect_through_host; 163 struct msg_transport_poll { 164 uint64_t ep_handle; 165 uint32_t timeout_ms; 166 } ep_poll; 167 struct msg_transport_disconnect { 168 uint64_t ep_handle; 169 } ep_disconnect; 170 struct msg_tgt_dscvr { 171 enum iscsi_tgt_dscvr type; 172 uint32_t host_no; 173 /* 174 * enable = 1 to establish a new connection 175 * with the server. enable = 0 to disconnect 176 * from the server. Used primarily to switch 177 * from one iSNS server to another. 178 */ 179 uint32_t enable; 180 } tgt_dscvr; 181 struct msg_set_host_param { 182 uint32_t host_no; 183 uint32_t param; /* enum iscsi_host_param */ 184 uint32_t len; 185 } set_host_param; 186 struct msg_set_path { 187 uint32_t host_no; 188 } set_path; 189 struct msg_set_iface_params { 190 uint32_t host_no; 191 uint32_t count; 192 } set_iface_params; 193 struct msg_iscsi_ping { 194 uint32_t host_no; 195 uint32_t iface_num; 196 uint32_t iface_type; 197 uint32_t payload_size; 198 uint32_t pid; /* unique ping id associated 199 with each ping request */ 200 } iscsi_ping; 201 struct msg_get_chap { 202 uint32_t host_no; 203 uint32_t num_entries; /* number of CHAP entries 204 * on request, number of 205 * valid CHAP entries on 206 * response */ 207 uint16_t chap_tbl_idx; 208 } get_chap; 209 struct msg_delete_chap { 210 uint32_t host_no; 211 uint16_t chap_tbl_idx; 212 } delete_chap; 213 } u; 214 union { 215 /* messages k -> u */ 216 int retcode; 217 struct msg_create_session_ret { 218 uint32_t sid; 219 uint32_t host_no; 220 } c_session_ret; 221 struct msg_create_conn_ret { 222 uint32_t sid; 223 uint32_t cid; 224 } c_conn_ret; 225 struct msg_unbind_session { 226 uint32_t sid; 227 uint32_t host_no; 228 } unbind_session; 229 struct msg_recv_req { 230 uint32_t sid; 231 uint32_t cid; 232 uint64_t recv_handle; 233 } recv_req; 234 struct msg_conn_login { 235 uint32_t sid; 236 uint32_t cid; 237 uint32_t state; /* enum iscsi_conn_state */ 238 } conn_login; 239 struct msg_conn_error { 240 uint32_t sid; 241 uint32_t cid; 242 uint32_t error; /* enum iscsi_err */ 243 } connerror; 244 struct msg_session_destroyed { 245 uint32_t host_no; 246 uint32_t sid; 247 } d_session; 248 struct msg_transport_connect_ret { 249 uint64_t handle; 250 } ep_connect_ret; 251 struct msg_req_path { 252 uint32_t host_no; 253 } req_path; 254 struct msg_notify_if_down { 255 uint32_t host_no; 256 } notify_if_down; 257 struct msg_host_event { 258 uint32_t host_no; 259 uint32_t data_size; 260 enum iscsi_host_event_code code; 261 } host_event; 262 struct msg_ping_comp { 263 uint32_t host_no; 264 uint32_t status; 265 uint32_t pid; /* unique ping id associated 266 with each ping request */ 267 uint32_t data_size; 268 } ping_comp; 269 } r; 270 } __attribute__ ((aligned (sizeof(uint64_t)))); 271 272 enum iscsi_param_type { 273 ISCSI_PARAM, /* iscsi_param (session, conn, target, LU) */ 274 ISCSI_HOST_PARAM, /* iscsi_host_param */ 275 ISCSI_NET_PARAM, /* iscsi_net_param */ 276 }; 277 278 struct iscsi_iface_param_info { 279 uint32_t iface_num; /* iface number, 0 - n */ 280 uint32_t len; /* Actual length of the param */ 281 uint16_t param; /* iscsi param value */ 282 uint8_t iface_type; /* IPv4 or IPv6 */ 283 uint8_t param_type; /* iscsi_param_type */ 284 uint8_t value[0]; /* length sized value follows */ 285 } __packed; 286 287 /* 288 * To keep the struct iscsi_uevent size the same for userspace code 289 * compatibility, the main structure for ISCSI_UEVENT_PATH_UPDATE and 290 * ISCSI_KEVENT_PATH_REQ is defined separately and comes after the 291 * struct iscsi_uevent in the NETLINK_ISCSI message. 292 */ 293 struct iscsi_path { 294 uint64_t handle; 295 uint8_t mac_addr[6]; 296 uint8_t mac_addr_old[6]; 297 uint32_t ip_addr_len; /* 4 or 16 */ 298 union { 299 struct in_addr v4_addr; 300 struct in6_addr v6_addr; 301 } src; 302 union { 303 struct in_addr v4_addr; 304 struct in6_addr v6_addr; 305 } dst; 306 uint16_t vlan_id; 307 uint16_t pmtu; 308 } __attribute__ ((aligned (sizeof(uint64_t)))); 309 310 /* iscsi iface enabled/disabled setting */ 311 #define ISCSI_IFACE_DISABLE 0x01 312 #define ISCSI_IFACE_ENABLE 0x02 313 314 /* ipv4 bootproto */ 315 #define ISCSI_BOOTPROTO_STATIC 0x01 316 #define ISCSI_BOOTPROTO_DHCP 0x02 317 318 /* ipv6 addr autoconfig type */ 319 #define ISCSI_IPV6_AUTOCFG_DISABLE 0x01 320 #define ISCSI_IPV6_AUTOCFG_ND_ENABLE 0x02 321 #define ISCSI_IPV6_AUTOCFG_DHCPV6_ENABLE 0x03 322 323 /* ipv6 link local addr type */ 324 #define ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE 0x01 325 #define ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE 0x02 326 327 /* ipv6 router addr type */ 328 #define ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE 0x01 329 #define ISCSI_IPV6_ROUTER_AUTOCFG_DISABLE 0x02 330 331 #define ISCSI_IFACE_TYPE_IPV4 0x01 332 #define ISCSI_IFACE_TYPE_IPV6 0x02 333 334 #define ISCSI_MAX_VLAN_ID 4095 335 #define ISCSI_MAX_VLAN_PRIORITY 7 336 337 /* iscsi vlan enable/disabled setting */ 338 #define ISCSI_VLAN_DISABLE 0x01 339 #define ISCSI_VLAN_ENABLE 0x02 340 341 /* iSCSI network params */ 342 enum iscsi_net_param { 343 ISCSI_NET_PARAM_IPV4_ADDR = 1, 344 ISCSI_NET_PARAM_IPV4_SUBNET = 2, 345 ISCSI_NET_PARAM_IPV4_GW = 3, 346 ISCSI_NET_PARAM_IPV4_BOOTPROTO = 4, 347 ISCSI_NET_PARAM_MAC = 5, 348 ISCSI_NET_PARAM_IPV6_LINKLOCAL = 6, 349 ISCSI_NET_PARAM_IPV6_ADDR = 7, 350 ISCSI_NET_PARAM_IPV6_ROUTER = 8, 351 ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG = 9, 352 ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG = 10, 353 ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG = 11, 354 ISCSI_NET_PARAM_IFACE_ENABLE = 12, 355 ISCSI_NET_PARAM_VLAN_ID = 13, 356 ISCSI_NET_PARAM_VLAN_PRIORITY = 14, 357 ISCSI_NET_PARAM_VLAN_ENABLED = 15, 358 ISCSI_NET_PARAM_VLAN_TAG = 16, 359 ISCSI_NET_PARAM_IFACE_TYPE = 17, 360 ISCSI_NET_PARAM_IFACE_NAME = 18, 361 ISCSI_NET_PARAM_MTU = 19, 362 ISCSI_NET_PARAM_PORT = 20, 363 }; 364 365 enum iscsi_conn_state { 366 ISCSI_CONN_STATE_FREE, 367 ISCSI_CONN_STATE_XPT_WAIT, 368 ISCSI_CONN_STATE_IN_LOGIN, 369 ISCSI_CONN_STATE_LOGGED_IN, 370 ISCSI_CONN_STATE_IN_LOGOUT, 371 ISCSI_CONN_STATE_LOGOUT_REQUESTED, 372 ISCSI_CONN_STATE_CLEANUP_WAIT, 373 }; 374 375 /* 376 * Common error codes 377 */ 378 enum iscsi_err { 379 ISCSI_OK = 0, 380 381 ISCSI_ERR_DATASN = ISCSI_ERR_BASE + 1, 382 ISCSI_ERR_DATA_OFFSET = ISCSI_ERR_BASE + 2, 383 ISCSI_ERR_MAX_CMDSN = ISCSI_ERR_BASE + 3, 384 ISCSI_ERR_EXP_CMDSN = ISCSI_ERR_BASE + 4, 385 ISCSI_ERR_BAD_OPCODE = ISCSI_ERR_BASE + 5, 386 ISCSI_ERR_DATALEN = ISCSI_ERR_BASE + 6, 387 ISCSI_ERR_AHSLEN = ISCSI_ERR_BASE + 7, 388 ISCSI_ERR_PROTO = ISCSI_ERR_BASE + 8, 389 ISCSI_ERR_LUN = ISCSI_ERR_BASE + 9, 390 ISCSI_ERR_BAD_ITT = ISCSI_ERR_BASE + 10, 391 ISCSI_ERR_CONN_FAILED = ISCSI_ERR_BASE + 11, 392 ISCSI_ERR_R2TSN = ISCSI_ERR_BASE + 12, 393 ISCSI_ERR_SESSION_FAILED = ISCSI_ERR_BASE + 13, 394 ISCSI_ERR_HDR_DGST = ISCSI_ERR_BASE + 14, 395 ISCSI_ERR_DATA_DGST = ISCSI_ERR_BASE + 15, 396 ISCSI_ERR_PARAM_NOT_FOUND = ISCSI_ERR_BASE + 16, 397 ISCSI_ERR_NO_SCSI_CMD = ISCSI_ERR_BASE + 17, 398 ISCSI_ERR_INVALID_HOST = ISCSI_ERR_BASE + 18, 399 ISCSI_ERR_XMIT_FAILED = ISCSI_ERR_BASE + 19, 400 ISCSI_ERR_TCP_CONN_CLOSE = ISCSI_ERR_BASE + 20, 401 ISCSI_ERR_SCSI_EH_SESSION_RST = ISCSI_ERR_BASE + 21, 402 }; 403 404 /* 405 * iSCSI Parameters (RFC3720) 406 */ 407 enum iscsi_param { 408 /* passed in using netlink set param */ 409 ISCSI_PARAM_MAX_RECV_DLENGTH, 410 ISCSI_PARAM_MAX_XMIT_DLENGTH, 411 ISCSI_PARAM_HDRDGST_EN, 412 ISCSI_PARAM_DATADGST_EN, 413 ISCSI_PARAM_INITIAL_R2T_EN, 414 ISCSI_PARAM_MAX_R2T, 415 ISCSI_PARAM_IMM_DATA_EN, 416 ISCSI_PARAM_FIRST_BURST, 417 ISCSI_PARAM_MAX_BURST, 418 ISCSI_PARAM_PDU_INORDER_EN, 419 ISCSI_PARAM_DATASEQ_INORDER_EN, 420 ISCSI_PARAM_ERL, 421 ISCSI_PARAM_IFMARKER_EN, 422 ISCSI_PARAM_OFMARKER_EN, 423 ISCSI_PARAM_EXP_STATSN, 424 ISCSI_PARAM_TARGET_NAME, 425 ISCSI_PARAM_TPGT, 426 ISCSI_PARAM_PERSISTENT_ADDRESS, 427 ISCSI_PARAM_PERSISTENT_PORT, 428 ISCSI_PARAM_SESS_RECOVERY_TMO, 429 430 /* passed in through bind conn using transport_fd */ 431 ISCSI_PARAM_CONN_PORT, 432 ISCSI_PARAM_CONN_ADDRESS, 433 434 ISCSI_PARAM_USERNAME, 435 ISCSI_PARAM_USERNAME_IN, 436 ISCSI_PARAM_PASSWORD, 437 ISCSI_PARAM_PASSWORD_IN, 438 439 ISCSI_PARAM_FAST_ABORT, 440 ISCSI_PARAM_ABORT_TMO, 441 ISCSI_PARAM_LU_RESET_TMO, 442 ISCSI_PARAM_HOST_RESET_TMO, 443 444 ISCSI_PARAM_PING_TMO, 445 ISCSI_PARAM_RECV_TMO, 446 447 ISCSI_PARAM_IFACE_NAME, 448 ISCSI_PARAM_ISID, 449 ISCSI_PARAM_INITIATOR_NAME, 450 451 ISCSI_PARAM_TGT_RESET_TMO, 452 ISCSI_PARAM_TARGET_ALIAS, 453 454 ISCSI_PARAM_CHAP_IN_IDX, 455 ISCSI_PARAM_CHAP_OUT_IDX, 456 /* must always be last */ 457 ISCSI_PARAM_MAX, 458 }; 459 460 /* iSCSI HBA params */ 461 enum iscsi_host_param { 462 ISCSI_HOST_PARAM_HWADDRESS, 463 ISCSI_HOST_PARAM_INITIATOR_NAME, 464 ISCSI_HOST_PARAM_NETDEV_NAME, 465 ISCSI_HOST_PARAM_IPADDRESS, 466 ISCSI_HOST_PARAM_PORT_STATE, 467 ISCSI_HOST_PARAM_PORT_SPEED, 468 ISCSI_HOST_PARAM_MAX, 469 }; 470 471 /* iSCSI port Speed */ 472 enum iscsi_port_speed { 473 ISCSI_PORT_SPEED_UNKNOWN = 0x1, 474 ISCSI_PORT_SPEED_10MBPS = 0x2, 475 ISCSI_PORT_SPEED_100MBPS = 0x4, 476 ISCSI_PORT_SPEED_1GBPS = 0x8, 477 ISCSI_PORT_SPEED_10GBPS = 0x10, 478 }; 479 480 /* iSCSI port state */ 481 enum iscsi_port_state { 482 ISCSI_PORT_STATE_DOWN = 0x1, 483 ISCSI_PORT_STATE_UP = 0x2, 484 }; 485 486 #define iscsi_ptr(_handle) ((void*)(unsigned long)_handle) 487 #define iscsi_handle(_ptr) ((uint64_t)(unsigned long)_ptr) 488 489 /* 490 * These flags presents iSCSI Data-Path capabilities. 491 */ 492 #define CAP_RECOVERY_L0 0x1 493 #define CAP_RECOVERY_L1 0x2 494 #define CAP_RECOVERY_L2 0x4 495 #define CAP_MULTI_R2T 0x8 496 #define CAP_HDRDGST 0x10 497 #define CAP_DATADGST 0x20 498 #define CAP_MULTI_CONN 0x40 499 #define CAP_TEXT_NEGO 0x80 500 #define CAP_MARKERS 0x100 501 #define CAP_FW_DB 0x200 502 #define CAP_SENDTARGETS_OFFLOAD 0x400 /* offload discovery process */ 503 #define CAP_DATA_PATH_OFFLOAD 0x800 /* offload entire IO path */ 504 #define CAP_DIGEST_OFFLOAD 0x1000 /* offload hdr and data digests */ 505 #define CAP_PADDING_OFFLOAD 0x2000 /* offload padding insertion, removal, 506 and verification */ 507 #define CAP_LOGIN_OFFLOAD 0x4000 /* offload session login */ 508 509 /* 510 * These flags describes reason of stop_conn() call 511 */ 512 #define STOP_CONN_TERM 0x1 513 #define STOP_CONN_SUSPEND 0x2 514 #define STOP_CONN_RECOVER 0x3 515 516 #define ISCSI_STATS_CUSTOM_MAX 32 517 #define ISCSI_STATS_CUSTOM_DESC_MAX 64 518 struct iscsi_stats_custom { 519 char desc[ISCSI_STATS_CUSTOM_DESC_MAX]; 520 uint64_t value; 521 }; 522 523 /* 524 * struct iscsi_stats - iSCSI Statistics (iSCSI MIB) 525 * 526 * Note: this structure contains counters collected on per-connection basis. 527 */ 528 struct iscsi_stats { 529 /* octets */ 530 uint64_t txdata_octets; 531 uint64_t rxdata_octets; 532 533 /* xmit pdus */ 534 uint32_t noptx_pdus; 535 uint32_t scsicmd_pdus; 536 uint32_t tmfcmd_pdus; 537 uint32_t login_pdus; 538 uint32_t text_pdus; 539 uint32_t dataout_pdus; 540 uint32_t logout_pdus; 541 uint32_t snack_pdus; 542 543 /* recv pdus */ 544 uint32_t noprx_pdus; 545 uint32_t scsirsp_pdus; 546 uint32_t tmfrsp_pdus; 547 uint32_t textrsp_pdus; 548 uint32_t datain_pdus; 549 uint32_t logoutrsp_pdus; 550 uint32_t r2t_pdus; 551 uint32_t async_pdus; 552 uint32_t rjt_pdus; 553 554 /* errors */ 555 uint32_t digest_err; 556 uint32_t timeout_err; 557 558 /* 559 * iSCSI Custom Statistics support, i.e. Transport could 560 * extend existing MIB statistics with its own specific statistics 561 * up to ISCSI_STATS_CUSTOM_MAX 562 */ 563 uint32_t custom_length; 564 struct iscsi_stats_custom custom[0] 565 __attribute__ ((aligned (sizeof(uint64_t)))); 566 }; 567 568 enum chap_type_e { 569 CHAP_TYPE_OUT, 570 CHAP_TYPE_IN, 571 }; 572 573 #define ISCSI_CHAP_AUTH_NAME_MAX_LEN 256 574 #define ISCSI_CHAP_AUTH_SECRET_MAX_LEN 256 575 struct iscsi_chap_rec { 576 uint16_t chap_tbl_idx; 577 enum chap_type_e chap_type; 578 char username[ISCSI_CHAP_AUTH_NAME_MAX_LEN]; 579 uint8_t password[ISCSI_CHAP_AUTH_SECRET_MAX_LEN]; 580 uint8_t password_length; 581 } __packed; 582 583 #endif 584