/******************************************************************************* * This file contains the configfs implementation for iSCSI Target mode * from the LIO-Target Project. * * \u00a9 Copyright 2007-2011 RisingTide Systems LLC. * * Licensed to the Linux Foundation under the General Public License (GPL) version 2. * * Author: Nicholas A. Bellinger * * 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. ****************************************************************************/ #include #include #include #include #include #include #include #include #include "iscsi_target_core.h" #include "iscsi_target_parameters.h" #include "iscsi_target_device.h" #include "iscsi_target_erl0.h" #include "iscsi_target_nodeattrib.h" #include "iscsi_target_tpg.h" #include "iscsi_target_util.h" #include "iscsi_target.h" #include "iscsi_target_stat.h" #include "iscsi_target_configfs.h" struct target_fabric_configfs *lio_target_fabric_configfs; struct lio_target_configfs_attribute { struct configfs_attribute attr; ssize_t (*show)(void *, char *); ssize_t (*store)(void *, const char *, size_t); }; struct iscsi_portal_group *lio_get_tpg_from_tpg_item( struct config_item *item, struct iscsi_tiqn **tiqn_out) { struct se_portal_group *se_tpg = container_of(to_config_group(item), struct se_portal_group, tpg_group); struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; int ret; if (!tpg) { pr_err("Unable to locate struct iscsi_portal_group " "pointer\n"); return NULL; } ret = iscsit_get_tpg(tpg); if (ret < 0) return NULL; *tiqn_out = tpg->tpg_tiqn; return tpg; } /* Start items for lio_target_portal_cit */ static ssize_t lio_target_np_show_sctp( struct se_tpg_np *se_tpg_np, char *page) { struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); struct iscsi_tpg_np *tpg_np_sctp; ssize_t rb; tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); if (tpg_np_sctp) rb = sprintf(page, "1\n"); else rb = sprintf(page, "0\n"); return rb; } static ssize_t lio_target_np_store_sctp( struct se_tpg_np *se_tpg_np, const char *page, size_t count) { struct iscsi_np *np; struct iscsi_portal_group *tpg; struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); struct iscsi_tpg_np *tpg_np_sctp = NULL; char *endptr; u32 op; int ret; op = simple_strtoul(page, &endptr, 0); if ((op != 1) && (op != 0)) { pr_err("Illegal value for tpg_enable: %u\n", op); return -EINVAL; } np = tpg_np->tpg_np; if (!np) { pr_err("Unable to locate struct iscsi_np from" " struct iscsi_tpg_np\n"); return -EINVAL; } tpg = tpg_np->tpg; if (iscsit_get_tpg(tpg) < 0) return -EINVAL; if (op) { /* * Use existing np->np_sockaddr for SCTP network portal reference */ tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, np->np_ip, tpg_np, ISCSI_SCTP_TCP); if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) goto out; } else { tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); if (!tpg_np_sctp) goto out; ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp); if (ret < 0) goto out; } iscsit_put_tpg(tpg); return count; out: iscsit_put_tpg(tpg); return -EINVAL; } TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_portal_attrs[] = { &lio_target_np_sctp.attr, NULL, }; /* Stop items for lio_target_portal_cit */ /* Start items for lio_target_np_cit */ #define MAX_PORTAL_LEN 256 struct se_tpg_np *lio_target_call_addnptotpg( struct se_portal_group *se_tpg, struct config_group *group, const char *name) { struct iscsi_portal_group *tpg; struct iscsi_tpg_np *tpg_np; char *str, *str2, *ip_str, *port_str; struct __kernel_sockaddr_storage sockaddr; struct sockaddr_in *sock_in; struct sockaddr_in6 *sock_in6; unsigned long port; int ret; char buf[MAX_PORTAL_LEN + 1]; if (strlen(name) > MAX_PORTAL_LEN) { pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n", (int)strlen(name), MAX_PORTAL_LEN); return ERR_PTR(-EOVERFLOW); } memset(buf, 0, MAX_PORTAL_LEN + 1); snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); str = strstr(buf, "["); if (str) { const char *end; str2 = strstr(str, "]"); if (!str2) { pr_err("Unable to locate trailing \"]\"" " in IPv6 iSCSI network portal address\n"); return ERR_PTR(-EINVAL); } str++; /* Skip over leading "[" */ *str2 = '\0'; /* Terminate the IPv6 address */ str2++; /* Skip over the "]" */ port_str = strstr(str2, ":"); if (!port_str) { pr_err("Unable to locate \":port\"" " in IPv6 iSCSI network portal address\n"); return ERR_PTR(-EINVAL); } *port_str = '\0'; /* Terminate string for IP */ port_str++; /* Skip over ":" */ ret = strict_strtoul(port_str, 0, &port); if (ret < 0) { pr_err("strict_strtoul() failed for port_str: %d\n", ret); return ERR_PTR(ret); } sock_in6 = (struct sockaddr_in6 *)&sockaddr; sock_in6->sin6_family = AF_INET6; sock_in6->sin6_port = htons((unsigned short)port); ret = in6_pton(str, IPV6_ADDRESS_SPACE, (void *)&sock_in6->sin6_addr.in6_u, -1, &end); if (ret <= 0) { pr_err("in6_pton returned: %d\n", ret); return ERR_PTR(-EINVAL); } } else { str = ip_str = &buf[0]; port_str = strstr(ip_str, ":"); if (!port_str) { pr_err("Unable to locate \":port\"" " in IPv4 iSCSI network portal address\n"); return ERR_PTR(-EINVAL); } *port_str = '\0'; /* Terminate string for IP */ port_str++; /* Skip over ":" */ ret = strict_strtoul(port_str, 0, &port); if (ret < 0) { pr_err("strict_strtoul() failed for port_str: %d\n", ret); return ERR_PTR(ret); } sock_in = (struct sockaddr_in *)&sockaddr; sock_in->sin_family = AF_INET; sock_in->sin_port = htons((unsigned short)port); sock_in->sin_addr.s_addr = in_aton(ip_str); } tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); ret = iscsit_get_tpg(tpg); if (ret < 0) return ERR_PTR(-EINVAL); pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu" " PORTAL: %s\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), tpg->tpgt, name); /* * Assume ISCSI_TCP by default. Other network portals for other * iSCSI fabrics: * * Traditional iSCSI over SCTP (initial support) * iSER/TCP (TODO, hardware available) * iSER/SCTP (TODO, software emulation with osc-iwarp) * iSER/IB (TODO, hardware available) * * can be enabled with atributes under * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ * */ tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, ISCSI_TCP); if (IS_ERR(tpg_np)) { iscsit_put_tpg(tpg); return ERR_CAST(tpg_np); } pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n"); iscsit_put_tpg(tpg); return &tpg_np->se_tpg_np; } static void lio_target_call_delnpfromtpg( struct se_tpg_np *se_tpg_np) { struct iscsi_portal_group *tpg; struct iscsi_tpg_np *tpg_np; struct se_portal_group *se_tpg; int ret; tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); tpg = tpg_np->tpg; ret = iscsit_get_tpg(tpg); if (ret < 0) return; se_tpg = &tpg->tpg_se_tpg; pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); ret = iscsit_tpg_del_network_portal(tpg, tpg_np); if (ret < 0) goto out; pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n"); out: iscsit_put_tpg(tpg); } /* End items for lio_target_np_cit */ /* Start items for lio_target_nacl_attrib_cit */ #define DEF_NACL_ATTRIB(name) \ static ssize_t iscsi_nacl_attrib_show_##name( \ struct se_node_acl *se_nacl, \ char *page) \ { \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ \ return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \ } \ \ static ssize_t iscsi_nacl_attrib_store_##name( \ struct se_node_acl *se_nacl, \ const char *page, \ size_t count) \ { \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ char *endptr; \ u32 val; \ int ret; \ \ val = simple_strtoul(page, &endptr, 0); \ ret = iscsit_na_##name(nacl, val); \ if (ret < 0) \ return ret; \ \ return count; \ } #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); /* * Define iscsi_node_attrib_s_dataout_timeout */ DEF_NACL_ATTRIB(dataout_timeout); NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); /* * Define iscsi_node_attrib_s_dataout_timeout_retries */ DEF_NACL_ATTRIB(dataout_timeout_retries); NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); /* * Define iscsi_node_attrib_s_default_erl */ DEF_NACL_ATTRIB(default_erl); NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); /* * Define iscsi_node_attrib_s_nopin_timeout */ DEF_NACL_ATTRIB(nopin_timeout); NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); /* * Define iscsi_node_attrib_s_nopin_response_timeout */ DEF_NACL_ATTRIB(nopin_response_timeout); NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); /* * Define iscsi_node_attrib_s_random_datain_pdu_offsets */ DEF_NACL_ATTRIB(random_datain_pdu_offsets); NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); /* * Define iscsi_node_attrib_s_random_datain_seq_offsets */ DEF_NACL_ATTRIB(random_datain_seq_offsets); NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); /* * Define iscsi_node_attrib_s_random_r2t_offsets */ DEF_NACL_ATTRIB(random_r2t_offsets); NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { &iscsi_nacl_attrib_dataout_timeout.attr, &iscsi_nacl_attrib_dataout_timeout_retries.attr, &iscsi_nacl_attrib_default_erl.attr, &iscsi_nacl_attrib_nopin_timeout.attr, &iscsi_nacl_attrib_nopin_response_timeout.attr, &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, &iscsi_nacl_attrib_random_datain_seq_offsets.attr, &iscsi_nacl_attrib_random_r2t_offsets.attr, NULL, }; /* End items for lio_target_nacl_attrib_cit */ /* Start items for lio_target_nacl_auth_cit */ #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ static ssize_t __iscsi_##prefix##_show_##name( \ struct iscsi_node_acl *nacl, \ char *page) \ { \ struct iscsi_node_auth *auth = &nacl->node_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ return -EPERM; \ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ } \ \ static ssize_t __iscsi_##prefix##_store_##name( \ struct iscsi_node_acl *nacl, \ const char *page, \ size_t count) \ { \ struct iscsi_node_auth *auth = &nacl->node_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ return -EPERM; \ \ snprintf(auth->name, sizeof(auth->name), "%s", page); \ if (!strncmp("NULL", auth->name, 4)) \ auth->naf_flags &= ~flags; \ else \ auth->naf_flags |= flags; \ \ if ((auth->naf_flags & NAF_USERID_IN_SET) && \ (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ auth->authenticate_target = 1; \ else \ auth->authenticate_target = 0; \ \ return count; \ } #define __DEF_NACL_AUTH_INT(prefix, name) \ static ssize_t __iscsi_##prefix##_show_##name( \ struct iscsi_node_acl *nacl, \ char *page) \ { \ struct iscsi_node_auth *auth = &nacl->node_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ return -EPERM; \ \ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ } #define DEF_NACL_AUTH_STR(name, flags) \ __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ static ssize_t iscsi_nacl_auth_show_##name( \ struct se_node_acl *nacl, \ char *page) \ { \ return __iscsi_nacl_auth_show_##name(container_of(nacl, \ struct iscsi_node_acl, se_node_acl), page); \ } \ static ssize_t iscsi_nacl_auth_store_##name( \ struct se_node_acl *nacl, \ const char *page, \ size_t count) \ { \ return __iscsi_nacl_auth_store_##name(container_of(nacl, \ struct iscsi_node_acl, se_node_acl), page, count); \ } #define DEF_NACL_AUTH_INT(name) \ __DEF_NACL_AUTH_INT(nacl_auth, name) \ static ssize_t iscsi_nacl_auth_show_##name( \ struct se_node_acl *nacl, \ char *page) \ { \ return __iscsi_nacl_auth_show_##name(container_of(nacl, \ struct iscsi_node_acl, se_node_acl), page); \ } #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); /* * One-way authentication userid */ DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); AUTH_ATTR(userid, S_IRUGO | S_IWUSR); /* * One-way authentication password */ DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); AUTH_ATTR(password, S_IRUGO | S_IWUSR); /* * Enforce mutual authentication */ DEF_NACL_AUTH_INT(authenticate_target); AUTH_ATTR_RO(authenticate_target); /* * Mutual authentication userid */ DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); /* * Mutual authentication password */ DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { &iscsi_nacl_auth_userid.attr, &iscsi_nacl_auth_password.attr, &iscsi_nacl_auth_authenticate_target.attr, &iscsi_nacl_auth_userid_mutual.attr, &iscsi_nacl_auth_password_mutual.attr, NULL, }; /* End items for lio_target_nacl_auth_cit */ /* Start items for lio_target_nacl_param_cit */ #define DEF_NACL_PARAM(name) \ static ssize_t iscsi_nacl_param_show_##name( \ struct se_node_acl *se_nacl, \ char *page) \ { \ struct iscsi_session *sess; \ struct se_session *se_sess; \ ssize_t rb; \ \ spin_lock_bh(&se_nacl->nacl_sess_lock); \ se_sess = se_nacl->nacl_sess; \ if (!se_sess) { \ rb = snprintf(page, PAGE_SIZE, \ "No Active iSCSI Session\n"); \ } else { \ sess = se_sess->fabric_sess_ptr; \ rb = snprintf(page, PAGE_SIZE, "%u\n", \ (u32)sess->sess_ops->name); \ } \ spin_unlock_bh(&se_nacl->nacl_sess_lock); \ \ return rb; \ } #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); DEF_NACL_PARAM(MaxConnections); NACL_PARAM_ATTR(MaxConnections); DEF_NACL_PARAM(InitialR2T); NACL_PARAM_ATTR(InitialR2T); DEF_NACL_PARAM(ImmediateData); NACL_PARAM_ATTR(ImmediateData); DEF_NACL_PARAM(MaxBurstLength); NACL_PARAM_ATTR(MaxBurstLength); DEF_NACL_PARAM(FirstBurstLength); NACL_PARAM_ATTR(FirstBurstLength); DEF_NACL_PARAM(DefaultTime2Wait); NACL_PARAM_ATTR(DefaultTime2Wait); DEF_NACL_PARAM(DefaultTime2Retain); NACL_PARAM_ATTR(DefaultTime2Retain); DEF_NACL_PARAM(MaxOutstandingR2T); NACL_PARAM_ATTR(MaxOutstandingR2T); DEF_NACL_PARAM(DataPDUInOrder); NACL_PARAM_ATTR(DataPDUInOrder); DEF_NACL_PARAM(DataSequenceInOrder); NACL_PARAM_ATTR(DataSequenceInOrder); DEF_NACL_PARAM(ErrorRecoveryLevel); NACL_PARAM_ATTR(ErrorRecoveryLevel); static struct configfs_attribute *lio_target_nacl_param_attrs[] = { &iscsi_nacl_param_MaxConnections.attr, &iscsi_nacl_param_InitialR2T.attr, &iscsi_nacl_param_ImmediateData.attr, &iscsi_nacl_param_MaxBurstLength.attr, &iscsi_nacl_param_FirstBurstLength.attr, &iscsi_nacl_param_DefaultTime2Wait.attr, &iscsi_nacl_param_DefaultTime2Retain.attr, &iscsi_nacl_param_MaxOutstandingR2T.attr, &iscsi_nacl_param_DataPDUInOrder.attr, &iscsi_nacl_param_DataSequenceInOrder.attr, &iscsi_nacl_param_ErrorRecoveryLevel.attr, NULL, }; /* End items for lio_target_nacl_param_cit */ /* Start items for lio_target_acl_cit */ static ssize_t lio_target_nacl_show_info( struct se_node_acl *se_nacl, char *page) { struct iscsi_session *sess; struct iscsi_conn *conn; struct se_session *se_sess; ssize_t rb = 0; spin_lock_bh(&se_nacl->nacl_sess_lock); se_sess = se_nacl->nacl_sess; if (!se_sess) { rb += sprintf(page+rb, "No active iSCSI Session for Initiator" " Endpoint: %s\n", se_nacl->initiatorname); } else { sess = se_sess->fabric_sess_ptr; if (sess->sess_ops->InitiatorName) rb += sprintf(page+rb, "InitiatorName: %s\n", sess->sess_ops->InitiatorName); if (sess->sess_ops->InitiatorAlias) rb += sprintf(page+rb, "InitiatorAlias: %s\n", sess->sess_ops->InitiatorAlias); rb += sprintf(page+rb, "LIO Session ID: %u " "ISID: 0x%02x %02x %02x %02x %02x %02x " "TSIH: %hu ", sess->sid, sess->isid[0], sess->isid[1], sess->isid[2], sess->isid[3], sess->isid[4], sess->isid[5], sess->tsih); rb += sprintf(page+rb, "SessionType: %s\n", (sess->sess_ops->SessionType) ? "Discovery" : "Normal"); rb += sprintf(page+rb, "Session State: "); switch (sess->session_state) { case TARG_SESS_STATE_FREE: rb += sprintf(page+rb, "TARG_SESS_FREE\n"); break; case TARG_SESS_STATE_ACTIVE: rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); break; case TARG_SESS_STATE_LOGGED_IN: rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); break; case TARG_SESS_STATE_FAILED: rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); break; case TARG_SESS_STATE_IN_CONTINUE: rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); break; default: rb += sprintf(page+rb, "ERROR: Unknown Session" " State!\n"); break; } rb += sprintf(page+rb, "---------------------[iSCSI Session" " Values]-----------------------\n"); rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" " : MaxCmdSN : ITT : TTT\n"); rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" " 0x%08x 0x%08x\n", sess->cmdsn_window, (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, sess->exp_cmd_sn, sess->max_cmd_sn, sess->init_task_tag, sess->targ_xfer_tag); rb += sprintf(page+rb, "----------------------[iSCSI" " Connections]-------------------------\n"); spin_lock(&sess->conn_lock); list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { rb += sprintf(page+rb, "CID: %hu Connection" " State: ", conn->cid); switch (conn->conn_state) { case TARG_CONN_STATE_FREE: rb += sprintf(page+rb, "TARG_CONN_STATE_FREE\n"); break; case TARG_CONN_STATE_XPT_UP: rb += sprintf(page+rb, "TARG_CONN_STATE_XPT_UP\n"); break; case TARG_CONN_STATE_IN_LOGIN: rb += sprintf(page+rb, "TARG_CONN_STATE_IN_LOGIN\n"); break; case TARG_CONN_STATE_LOGGED_IN: rb += sprintf(page+rb, "TARG_CONN_STATE_LOGGED_IN\n"); break; case TARG_CONN_STATE_IN_LOGOUT: rb += sprintf(page+rb, "TARG_CONN_STATE_IN_LOGOUT\n"); break; case TARG_CONN_STATE_LOGOUT_REQUESTED: rb += sprintf(page+rb, "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); break; case TARG_CONN_STATE_CLEANUP_WAIT: rb += sprintf(page+rb, "TARG_CONN_STATE_CLEANUP_WAIT\n"); break; default: rb += sprintf(page+rb, "ERROR: Unknown Connection State!\n"); break; } rb += sprintf(page+rb, " Address %s %s", conn->login_ip, (conn->network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); rb += sprintf(page+rb, " StatSN: 0x%08x\n", conn->stat_sn); } spin_unlock(&sess->conn_lock); } spin_unlock_bh(&se_nacl->nacl_sess_lock); return rb; } TF_NACL_BASE_ATTR_RO(lio_target, info); static ssize_t lio_target_nacl_show_cmdsn_depth( struct se_node_acl *se_nacl, char *page) { return sprintf(page, "%u\n", se_nacl->queue_depth); } static ssize_t lio_target_nacl_store_cmdsn_depth( struct se_node_acl *se_nacl, const char *page, size_t count) { struct se_portal_group *se_tpg = se_nacl->se_tpg; struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); struct config_item *acl_ci, *tpg_ci, *wwn_ci; char *endptr; u32 cmdsn_depth = 0; int ret; cmdsn_depth = simple_strtoul(page, &endptr, 0); if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { pr_err("Passed cmdsn_depth: %u exceeds" " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, TA_DEFAULT_CMDSN_DEPTH_MAX); return -EINVAL; } acl_ci = &se_nacl->acl_group.cg_item; if (!acl_ci) { pr_err("Unable to locatel acl_ci\n"); return -EINVAL; } tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; if (!tpg_ci) { pr_err("Unable to locate tpg_ci\n"); return -EINVAL; } wwn_ci = &tpg_ci->ci_group->cg_item; if (!wwn_ci) { pr_err("Unable to locate config_item wwn_ci\n"); return -EINVAL; } if (iscsit_get_tpg(tpg) < 0) return -EINVAL; /* * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 */ ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, config_item_name(acl_ci), cmdsn_depth, 1); pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" "InitiatorName: %s\n", config_item_name(wwn_ci), config_item_name(tpg_ci), cmdsn_depth, config_item_name(acl_ci)); iscsit_put_tpg(tpg); return (!ret) ? count : (ssize_t)ret; } TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_initiator_attrs[] = { &lio_target_nacl_info.attr, &lio_target_nacl_cmdsn_depth.attr, NULL, }; static struct se_node_acl *lio_tpg_alloc_fabric_acl( struct se_portal_group *se_tpg) { struct iscsi_node_acl *acl; acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); if (!acl) { pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); return NULL; } return &acl->se_node_acl; } static struct se_node_acl *lio_target_make_nodeacl( struct se_portal_group *se_tpg, struct config_group *group, const char *name) { struct config_group *stats_cg; struct iscsi_node_acl *acl; struct se_node_acl *se_nacl_new, *se_nacl; struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); u32 cmdsn_depth; se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); if (!se_nacl_new) return ERR_PTR(-ENOMEM); cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; /* * se_nacl_new may be released by core_tpg_add_initiator_node_acl() * when converting a NdoeACL from demo mode -> explict */ se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, name, cmdsn_depth); if (IS_ERR(se_nacl)) return se_nacl; acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); stats_cg = &se_nacl->acl_fabric_stat_group; stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, GFP_KERNEL); if (!stats_cg->default_groups) { pr_err("Unable to allocate memory for" " stats_cg->default_groups\n"); core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); kfree(acl); return ERR_PTR(-ENOMEM); } stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; stats_cg->default_groups[1] = NULL; config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, "iscsi_sess_stats", &iscsi_stat_sess_cit); return se_nacl; } static void lio_target_drop_nodeacl( struct se_node_acl *se_nacl) { struct se_portal_group *se_tpg = se_nacl->se_tpg; struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); struct config_item *df_item; struct config_group *stats_cg; int i; stats_cg = &acl->se_node_acl.acl_fabric_stat_group; for (i = 0; stats_cg->default_groups[i]; i++) { df_item = &stats_cg->default_groups[i]->cg_item; stats_cg->default_groups[i] = NULL; config_item_put(df_item); } kfree(stats_cg->default_groups); core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); kfree(acl); } /* End items for lio_target_acl_cit */ /* Start items for lio_target_tpg_attrib_cit */ #define DEF_TPG_ATTRIB(name) \ \ static ssize_t iscsi_tpg_attrib_show_##name( \ struct se_portal_group *se_tpg, \ char *page) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ ssize_t rb; \ \ if (iscsit_get_tpg(tpg) < 0) \ return -EINVAL; \ \ rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ iscsit_put_tpg(tpg); \ return rb; \ } \ \ static ssize_t iscsi_tpg_attrib_store_##name( \ struct se_portal_group *se_tpg, \ const char *page, \ size_t count) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ char *endptr; \ u32 val; \ int ret; \ \ if (iscsit_get_tpg(tpg) < 0) \ return -EINVAL; \ \ val = simple_strtoul(page, &endptr, 0); \ ret = iscsit_ta_##name(tpg, val); \ if (ret < 0) \ goto out; \ \ iscsit_put_tpg(tpg); \ return count; \ out: \ iscsit_put_tpg(tpg); \ return ret; \ } #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); /* * Define iscsi_tpg_attrib_s_authentication */ DEF_TPG_ATTRIB(authentication); TPG_ATTR(authentication, S_IRUGO | S_IWUSR); /* * Define iscsi_tpg_attrib_s_login_timeout */ DEF_TPG_ATTRIB(login_timeout); TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); /* * Define iscsi_tpg_attrib_s_netif_timeout */ DEF_TPG_ATTRIB(netif_timeout); TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); /* * Define iscsi_tpg_attrib_s_generate_node_acls */ DEF_TPG_ATTRIB(generate_node_acls); TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); /* * Define iscsi_tpg_attrib_s_default_cmdsn_depth */ DEF_TPG_ATTRIB(default_cmdsn_depth); TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); /* Define iscsi_tpg_attrib_s_cache_dynamic_acls */ DEF_TPG_ATTRIB(cache_dynamic_acls); TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); /* * Define iscsi_tpg_attrib_s_demo_mode_write_protect */ DEF_TPG_ATTRIB(demo_mode_write_protect); TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); /* * Define iscsi_tpg_attrib_s_prod_mode_write_protect */ DEF_TPG_ATTRIB(prod_mode_write_protect); TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_authentication.attr, &iscsi_tpg_attrib_login_timeout.attr, &iscsi_tpg_attrib_netif_timeout.attr, &iscsi_tpg_attrib_generate_node_acls.attr, &iscsi_tpg_attrib_default_cmdsn_depth.attr, &iscsi_tpg_attrib_cache_dynamic_acls.attr, &iscsi_tpg_attrib_demo_mode_write_protect.attr, &iscsi_tpg_attrib_prod_mode_write_protect.attr, NULL, }; /* End items for lio_target_tpg_attrib_cit */ /* Start items for lio_target_tpg_param_cit */ #define DEF_TPG_PARAM(name) \ static ssize_t iscsi_tpg_param_show_##name( \ struct se_portal_group *se_tpg, \ char *page) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ struct iscsi_param *param; \ ssize_t rb; \ \ if (iscsit_get_tpg(tpg) < 0) \ return -EINVAL; \ \ param = iscsi_find_param_from_key(__stringify(name), \ tpg->param_list); \ if (!param) { \ iscsit_put_tpg(tpg); \ return -EINVAL; \ } \ rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ \ iscsit_put_tpg(tpg); \ return rb; \ } \ static ssize_t iscsi_tpg_param_store_##name( \ struct se_portal_group *se_tpg, \ const char *page, \ size_t count) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ char *buf; \ int ret; \ \ buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ if (!buf) \ return -ENOMEM; \ snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ buf[strlen(buf)-1] = '\0'; /* Kill newline */ \ \ if (iscsit_get_tpg(tpg) < 0) { \ kfree(buf); \ return -EINVAL; \ } \ \ ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ if (ret < 0) \ goto out; \ \ kfree(buf); \ iscsit_put_tpg(tpg); \ return count; \ out: \ kfree(buf); \ iscsit_put_tpg(tpg); \ return -EINVAL; \ } #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); DEF_TPG_PARAM(AuthMethod); TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(HeaderDigest); TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(DataDigest); TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(MaxConnections); TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(TargetAlias); TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(InitialR2T); TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(ImmediateData); TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(MaxRecvDataSegmentLength); TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(MaxBurstLength); TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(FirstBurstLength); TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(DefaultTime2Wait); TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(DefaultTime2Retain); TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(MaxOutstandingR2T); TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(DataPDUInOrder); TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(DataSequenceInOrder); TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(ErrorRecoveryLevel); TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(IFMarker); TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(OFMarker); TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(IFMarkInt); TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); DEF_TPG_PARAM(OFMarkInt); TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_param_attrs[] = { &iscsi_tpg_param_AuthMethod.attr, &iscsi_tpg_param_HeaderDigest.attr, &iscsi_tpg_param_DataDigest.attr, &iscsi_tpg_param_MaxConnections.attr, &iscsi_tpg_param_TargetAlias.attr, &iscsi_tpg_param_InitialR2T.attr, &iscsi_tpg_param_ImmediateData.attr, &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, &iscsi_tpg_param_MaxBurstLength.attr, &iscsi_tpg_param_FirstBurstLength.attr, &iscsi_tpg_param_DefaultTime2Wait.attr, &iscsi_tpg_param_DefaultTime2Retain.attr, &iscsi_tpg_param_MaxOutstandingR2T.attr, &iscsi_tpg_param_DataPDUInOrder.attr, &iscsi_tpg_param_DataSequenceInOrder.attr, &iscsi_tpg_param_ErrorRecoveryLevel.attr, &iscsi_tpg_param_IFMarker.attr, &iscsi_tpg_param_OFMarker.attr, &iscsi_tpg_param_IFMarkInt.attr, &iscsi_tpg_param_OFMarkInt.attr, NULL, }; /* End items for lio_target_tpg_param_cit */ /* Start items for lio_target_tpg_cit */ static ssize_t lio_target_tpg_show_enable( struct se_portal_group *se_tpg, char *page) { struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); ssize_t len; spin_lock(&tpg->tpg_state_lock); len = sprintf(page, "%d\n", (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); spin_unlock(&tpg->tpg_state_lock); return len; } static ssize_t lio_target_tpg_store_enable( struct se_portal_group *se_tpg, const char *page, size_t count) { struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); char *endptr; u32 op; int ret = 0; op = simple_strtoul(page, &endptr, 0); if ((op != 1) && (op != 0)) { pr_err("Illegal value for tpg_enable: %u\n", op); return -EINVAL; } ret = iscsit_get_tpg(tpg); if (ret < 0) return -EINVAL; if (op) { ret = iscsit_tpg_enable_portal_group(tpg); if (ret < 0) goto out; } else { /* * iscsit_tpg_disable_portal_group() assumes force=1 */ ret = iscsit_tpg_disable_portal_group(tpg, 1); if (ret < 0) goto out; } iscsit_put_tpg(tpg); return count; out: iscsit_put_tpg(tpg); return -EINVAL; } TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_attrs[] = { &lio_target_tpg_enable.attr, NULL, }; /* End items for lio_target_tpg_cit */ /* Start items for lio_target_tiqn_cit */ struct se_portal_group *lio_target_tiqn_addtpg( struct se_wwn *wwn, struct config_group *group, const char *name) { struct iscsi_portal_group *tpg; struct iscsi_tiqn *tiqn; char *tpgt_str, *end_ptr; int ret = 0; unsigned short int tpgt; tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); /* * Only tpgt_# directory groups can be created below * target/iscsi/iqn.superturodiskarry/ */ tpgt_str = strstr(name, "tpgt_"); if (!tpgt_str) { pr_err("Unable to locate \"tpgt_#\" directory" " group\n"); return NULL; } tpgt_str += 5; /* Skip ahead of "tpgt_" */ tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); tpg = iscsit_alloc_portal_group(tiqn, tpgt); if (!tpg) return NULL; ret = core_tpg_register( &lio_target_fabric_configfs->tf_ops, wwn, &tpg->tpg_se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); if (ret < 0) return NULL; ret = iscsit_tpg_add_portal_group(tiqn, tpg); if (ret != 0) goto out; pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", name); return &tpg->tpg_se_tpg; out: core_tpg_deregister(&tpg->tpg_se_tpg); kfree(tpg); return NULL; } void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg; struct iscsi_tiqn *tiqn; tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); tiqn = tpg->tpg_tiqn; /* * iscsit_tpg_del_portal_group() assumes force=1 */ pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); iscsit_tpg_del_portal_group(tiqn, tpg, 1); } /* End items for lio_target_tiqn_cit */ /* Start LIO-Target TIQN struct contig_item lio_target_cit */ static ssize_t lio_target_wwn_show_attr_lio_version( struct target_fabric_configfs *tf, char *page) { return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n"); } TF_WWN_ATTR_RO(lio_target, lio_version); static struct configfs_attribute *lio_target_wwn_attrs[] = { &lio_target_wwn_lio_version.attr, NULL, }; struct se_wwn *lio_target_call_coreaddtiqn( struct target_fabric_configfs *tf, struct config_group *group, const char *name) { struct config_group *stats_cg; struct iscsi_tiqn *tiqn; tiqn = iscsit_add_tiqn((unsigned char *)name); if (IS_ERR(tiqn)) return ERR_CAST(tiqn); /* * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. */ stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, GFP_KERNEL); if (!stats_cg->default_groups) { pr_err("Unable to allocate memory for" " stats_cg->default_groups\n"); iscsit_del_tiqn(tiqn); return ERR_PTR(-ENOMEM); } stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; stats_cg->default_groups[5] = NULL; config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, "iscsi_instance", &iscsi_stat_instance_cit); config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, "iscsi_sess_err", &iscsi_stat_sess_err_cit); config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, "iscsi_login_stats", &iscsi_stat_login_cit); config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, "iscsi_logout_stats", &iscsi_stat_logout_cit); pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" " %s\n", name); return &tiqn->tiqn_wwn; } void lio_target_call_coredeltiqn( struct se_wwn *wwn) { struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); struct config_item *df_item; struct config_group *stats_cg; int i; stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; for (i = 0; stats_cg->default_groups[i]; i++) { df_item = &stats_cg->default_groups[i]->cg_item; stats_cg->default_groups[i] = NULL; config_item_put(df_item); } kfree(stats_cg->default_groups); pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", tiqn->tiqn); iscsit_del_tiqn(tiqn); } /* End LIO-Target TIQN struct contig_lio_target_cit */ /* Start lio_target_discovery_auth_cit */ #define DEF_DISC_AUTH_STR(name, flags) \ __DEF_NACL_AUTH_STR(disc, name, flags) \ static ssize_t iscsi_disc_show_##name( \ struct target_fabric_configfs *tf, \ char *page) \ { \ return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ page); \ } \ static ssize_t iscsi_disc_store_##name( \ struct target_fabric_configfs *tf, \ const char *page, \ size_t count) \ { \ return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ page, count); \ } #define DEF_DISC_AUTH_INT(name) \ __DEF_NACL_AUTH_INT(disc, name) \ static ssize_t iscsi_disc_show_##name( \ struct target_fabric_configfs *tf, \ char *page) \ { \ return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ page); \ } #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) /* * One-way authentication userid */ DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); /* * One-way authentication password */ DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); /* * Enforce mutual authentication */ DEF_DISC_AUTH_INT(authenticate_target); DISC_AUTH_ATTR_RO(authenticate_target); /* * Mutual authentication userid */ DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); /* * Mutual authentication password */ DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); /* * enforce_discovery_auth */ static ssize_t iscsi_disc_show_enforce_discovery_auth( struct target_fabric_configfs *tf, char *page) { struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); } static ssize_t iscsi_disc_store_enforce_discovery_auth( struct target_fabric_configfs *tf, const char *page, size_t count) { struct iscsi_param *param; struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; char *endptr; u32 op; op = simple_strtoul(page, &endptr, 0); if ((op != 1) && (op != 0)) { pr_err("Illegal value for enforce_discovery_auth:" " %u\n", op); return -EINVAL; } if (!discovery_tpg) { pr_err("iscsit_global->discovery_tpg is NULL\n"); return -EINVAL; } param = iscsi_find_param_from_key(AUTHMETHOD, discovery_tpg->param_list); if (!param) return -EINVAL; if (op) { /* * Reset the AuthMethod key to CHAP. */ if (iscsi_update_param_value(param, CHAP) < 0) return -EINVAL; discovery_tpg->tpg_attrib.authentication = 1; iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; pr_debug("LIO-CORE[0] Successfully enabled" " authentication enforcement for iSCSI" " Discovery TPG\n"); } else { /* * Reset the AuthMethod key to CHAP,None */ if (iscsi_update_param_value(param, "CHAP,None") < 0) return -EINVAL; discovery_tpg->tpg_attrib.authentication = 0; iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; pr_debug("LIO-CORE[0] Successfully disabled" " authentication enforcement for iSCSI" " Discovery TPG\n"); } return count; } DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { &iscsi_disc_userid.attr, &iscsi_disc_password.attr, &iscsi_disc_authenticate_target.attr, &iscsi_disc_userid_mutual.attr, &iscsi_disc_password_mutual.attr, &iscsi_disc_enforce_discovery_auth.attr, NULL, }; /* End lio_target_discovery_auth_cit */ /* Start functions for target_core_fabric_ops */ static char *iscsi_get_fabric_name(void) { return "iSCSI"; } static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); return cmd->init_task_tag; } static int iscsi_get_cmd_state(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); return cmd->i_state; } static u32 lio_sess_get_index(struct se_session *se_sess) { struct iscsi_session *sess = se_sess->fabric_sess_ptr; return sess->session_index; } static u32 lio_sess_get_initiator_sid( struct se_session *se_sess, unsigned char *buf, u32 size) { struct iscsi_session *sess = se_sess->fabric_sess_ptr; /* * iSCSI Initiator Session Identifier from RFC-3720. */ return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", sess->isid[0], sess->isid[1], sess->isid[2], sess->isid[3], sess->isid[4], sess->isid[5]); } static int lio_queue_data_in(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); cmd->i_state = ISTATE_SEND_DATAIN; iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); return 0; } static int lio_write_pending(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); if (!cmd->immediate_data && !cmd->unsolicited_data) return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, 1); return 0; } static int lio_write_pending_status(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); int ret; spin_lock_bh(&cmd->istate_lock); ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); spin_unlock_bh(&cmd->istate_lock); return ret; } static int lio_queue_status(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); cmd->i_state = ISTATE_SEND_STATUS; iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); return 0; } static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) { unsigned char *buffer = se_cmd->sense_buffer; /* * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment * 16-bit SenseLength. */ buffer[0] = ((sense_length >> 8) & 0xff); buffer[1] = (sense_length & 0xff); /* * Return two byte offset into allocated sense_buffer. */ return 2; } static u16 lio_get_fabric_sense_len(void) { /* * Return two byte offset into allocated sense_buffer. */ return 2; } static int lio_queue_tm_rsp(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); cmd->i_state = ISTATE_SEND_TASKMGTRSP; iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); return 0; } static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return &tpg->tpg_tiqn->tiqn[0]; } static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return tpg->tpgt; } static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; } static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; } static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; } static int lio_tpg_check_demo_mode_write_protect( struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; } static int lio_tpg_check_prod_mode_write_protect( struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; } static void lio_tpg_release_fabric_acl( struct se_portal_group *se_tpg, struct se_node_acl *se_acl) { struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, se_node_acl); kfree(acl); } /* * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. * * Also, this function calls iscsit_inc_session_usage_count() on the * struct iscsi_session in question. */ static int lio_tpg_shutdown_session(struct se_session *se_sess) { struct iscsi_session *sess = se_sess->fabric_sess_ptr; spin_lock(&sess->conn_lock); if (atomic_read(&sess->session_fall_back_to_erl0) || atomic_read(&sess->session_logout) || (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { spin_unlock(&sess->conn_lock); return 0; } atomic_set(&sess->session_reinstatement, 1); spin_unlock(&sess->conn_lock); iscsit_stop_time2retain_timer(sess); iscsit_stop_session(sess, 1, 1); return 1; } /* * Calls iscsit_dec_session_usage_count() as inverse of * lio_tpg_shutdown_session() */ static void lio_tpg_close_session(struct se_session *se_sess) { struct iscsi_session *sess = se_sess->fabric_sess_ptr; /* * If the iSCSI Session for the iSCSI Initiator Node exists, * forcefully shutdown the iSCSI NEXUS. */ iscsit_close_session(sess); } static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; return tpg->tpg_tiqn->tiqn_index; } static void lio_set_default_node_attributes(struct se_node_acl *se_acl) { struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, se_node_acl); ISCSI_NODE_ATTRIB(acl)->nacl = acl; iscsit_set_default_node_attribues(acl); } static void lio_release_cmd(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); iscsit_release_cmd(cmd); } /* End functions for target_core_fabric_ops */ int iscsi_target_register_configfs(void) { struct target_fabric_configfs *fabric; int ret; lio_target_fabric_configfs = NULL; fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); if (IS_ERR(fabric)) { pr_err("target_fabric_configfs_init() for" " LIO-Target failed!\n"); return PTR_ERR(fabric); } /* * Setup the fabric API of function pointers used by target_core_mod.. */ fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; fabric->tf_ops.tpg_get_pr_transport_id_len = &iscsi_get_pr_transport_id_len; fabric->tf_ops.tpg_parse_pr_out_transport_id = &iscsi_parse_pr_out_transport_id; fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; fabric->tf_ops.tpg_check_demo_mode_cache = &lio_tpg_check_demo_mode_cache; fabric->tf_ops.tpg_check_demo_mode_write_protect = &lio_tpg_check_demo_mode_write_protect; fabric->tf_ops.tpg_check_prod_mode_write_protect = &lio_tpg_check_prod_mode_write_protect; fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; fabric->tf_ops.release_cmd = &lio_release_cmd; fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; fabric->tf_ops.close_session = &lio_tpg_close_session; fabric->tf_ops.sess_get_index = &lio_sess_get_index; fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; fabric->tf_ops.write_pending = &lio_write_pending; fabric->tf_ops.write_pending_status = &lio_write_pending_status; fabric->tf_ops.set_default_node_attributes = &lio_set_default_node_attributes; fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; fabric->tf_ops.queue_data_in = &lio_queue_data_in; fabric->tf_ops.queue_status = &lio_queue_status; fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len; fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len; /* * Setup function pointers for generic logic in target_core_fabric_configfs.c */ fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; fabric->tf_ops.fabric_post_link = NULL; fabric->tf_ops.fabric_pre_unlink = NULL; fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; /* * Setup default attribute lists for various fabric->tf_cit_tmpl * sturct config_item_type's */ TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; ret = target_fabric_configfs_register(fabric); if (ret < 0) { pr_err("target_fabric_configfs_register() for" " LIO-Target failed!\n"); target_fabric_configfs_free(fabric); return ret; } lio_target_fabric_configfs = fabric; pr_debug("LIO_TARGET[0] - Set fabric ->" " lio_target_fabric_configfs\n"); return 0; } void iscsi_target_deregister_configfs(void) { if (!lio_target_fabric_configfs) return; /* * Shutdown discovery sessions and disable discovery TPG */ if (iscsit_global->discovery_tpg) iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); target_fabric_configfs_deregister(lio_target_fabric_configfs); lio_target_fabric_configfs = NULL; pr_debug("LIO_TARGET[0] - Cleared" " lio_target_fabric_configfs\n"); }