/******************************************************************************* * This file contains the configfs implementation for iSCSI Target mode * from the LIO-Target Project. * * (c) Copyright 2007-2013 Datera, Inc. * * 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 #include #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 /* Start items for lio_target_portal_cit */ static inline struct iscsi_tpg_np *to_iscsi_tpg_np(struct config_item *item) { return container_of(to_tpg_np(item), struct iscsi_tpg_np, se_tpg_np); } static ssize_t lio_target_np_driver_show(struct config_item *item, char *page, enum iscsit_transport_type type) { struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_tpg_np *tpg_np_new; ssize_t rb; tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type); if (tpg_np_new) rb = sprintf(page, "1\n"); else rb = sprintf(page, "0\n"); return rb; } static ssize_t lio_target_np_driver_store(struct config_item *item, const char *page, size_t count, enum iscsit_transport_type type, const char *mod_name) { struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_np *np; struct iscsi_portal_group *tpg; struct iscsi_tpg_np *tpg_np_new = NULL; u32 op; int rc; rc = kstrtou32(page, 0, &op); if (rc) return rc; 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) { if (strlen(mod_name)) { rc = request_module(mod_name); if (rc != 0) { pr_warn("Unable to request_module for %s\n", mod_name); rc = 0; } } tpg_np_new = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, tpg_np, type); if (IS_ERR(tpg_np_new)) { rc = PTR_ERR(tpg_np_new); goto out; } } else { tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type); if (tpg_np_new) { rc = iscsit_tpg_del_network_portal(tpg, tpg_np_new); if (rc < 0) goto out; } } iscsit_put_tpg(tpg); return count; out: iscsit_put_tpg(tpg); return rc; } static ssize_t lio_target_np_iser_show(struct config_item *item, char *page) { return lio_target_np_driver_show(item, page, ISCSI_INFINIBAND); } static ssize_t lio_target_np_iser_store(struct config_item *item, const char *page, size_t count) { return lio_target_np_driver_store(item, page, count, ISCSI_INFINIBAND, "ib_isert"); } CONFIGFS_ATTR(lio_target_np_, iser); static ssize_t lio_target_np_cxgbit_show(struct config_item *item, char *page) { return lio_target_np_driver_show(item, page, ISCSI_CXGBIT); } static ssize_t lio_target_np_cxgbit_store(struct config_item *item, const char *page, size_t count) { return lio_target_np_driver_store(item, page, count, ISCSI_CXGBIT, "cxgbit"); } CONFIGFS_ATTR(lio_target_np_, cxgbit); static struct configfs_attribute *lio_target_portal_attrs[] = { &lio_target_np_attr_iser, &lio_target_np_attr_cxgbit, NULL, }; /* Stop items for lio_target_portal_cit */ /* Start items for lio_target_np_cit */ #define MAX_PORTAL_LEN 256 static 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 sockaddr_storage sockaddr = { }; 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); str = strstr(buf, "["); if (str) { str2 = strstr(str, "]"); if (!str2) { pr_err("Unable to locate trailing \"]\"" " in IPv6 iSCSI network portal address\n"); return ERR_PTR(-EINVAL); } ip_str = str + 1; /* Skip over leading "[" */ *str2 = '\0'; /* Terminate the unbracketed IPv6 address */ str2++; /* Skip over the \0 */ 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 ":" */ } else { 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 = inet_pton_with_scope(&init_net, AF_UNSPEC, ip_str, port_str, &sockaddr); if (ret) { pr_err("malformed ip/port passed: %s\n", name); return ERR_PTR(ret); } 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 attributes under * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ * */ tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, 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: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), tpg->tpgt, &tpg_np->tpg_np->np_sockaddr); 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 ISCSI_NACL_ATTR(name) \ static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\ char *page) \ { \ struct se_node_acl *se_nacl = attrib_to_nacl(item); \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ \ return sprintf(page, "%u\n", nacl->node_attrib.name); \ } \ \ static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\ const char *page, size_t count) \ { \ struct se_node_acl *se_nacl = attrib_to_nacl(item); \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ u32 val; \ int ret; \ \ ret = kstrtou32(page, 0, &val); \ if (ret) \ return ret; \ ret = iscsit_na_##name(nacl, val); \ if (ret < 0) \ return ret; \ \ return count; \ } \ \ CONFIGFS_ATTR(iscsi_nacl_attrib_, name) ISCSI_NACL_ATTR(dataout_timeout); ISCSI_NACL_ATTR(dataout_timeout_retries); ISCSI_NACL_ATTR(default_erl); ISCSI_NACL_ATTR(nopin_timeout); ISCSI_NACL_ATTR(nopin_response_timeout); ISCSI_NACL_ATTR(random_datain_pdu_offsets); ISCSI_NACL_ATTR(random_datain_seq_offsets); ISCSI_NACL_ATTR(random_r2t_offsets); static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { &iscsi_nacl_attrib_attr_dataout_timeout, &iscsi_nacl_attrib_attr_dataout_timeout_retries, &iscsi_nacl_attrib_attr_default_erl, &iscsi_nacl_attrib_attr_nopin_timeout, &iscsi_nacl_attrib_attr_nopin_response_timeout, &iscsi_nacl_attrib_attr_random_datain_pdu_offsets, &iscsi_nacl_attrib_attr_random_datain_seq_offsets, &iscsi_nacl_attrib_attr_random_r2t_offsets, 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##_##name##_show( \ 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##_##name##_store( \ 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; \ if (count >= sizeof(auth->name)) \ return -EINVAL; \ 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_STR(name, flags) \ __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ struct iscsi_node_acl, se_node_acl), page); \ } \ static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ return __iscsi_nacl_auth_##name##_store(container_of(nacl, \ struct iscsi_node_acl, se_node_acl), page, count); \ } \ \ CONFIGFS_ATTR(iscsi_nacl_auth_, name) /* * One-way authentication userid */ DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); #define __DEF_NACL_AUTH_INT(prefix, name) \ static ssize_t __iscsi_##prefix##_##name##_show( \ 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_INT(name) \ __DEF_NACL_AUTH_INT(nacl_auth, name) \ static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ struct iscsi_node_acl, se_node_acl), page); \ } \ \ CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name) DEF_NACL_AUTH_INT(authenticate_target); static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { &iscsi_nacl_auth_attr_userid, &iscsi_nacl_auth_attr_password, &iscsi_nacl_auth_attr_authenticate_target, &iscsi_nacl_auth_attr_userid_mutual, &iscsi_nacl_auth_attr_password_mutual, NULL, }; /* End items for lio_target_nacl_auth_cit */ /* Start items for lio_target_nacl_param_cit */ #define ISCSI_NACL_PARAM(name) \ static ssize_t iscsi_nacl_param_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_node_acl *se_nacl = param_to_nacl(item); \ 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; \ } \ \ CONFIGFS_ATTR_RO(iscsi_nacl_param_, name) ISCSI_NACL_PARAM(MaxConnections); ISCSI_NACL_PARAM(InitialR2T); ISCSI_NACL_PARAM(ImmediateData); ISCSI_NACL_PARAM(MaxBurstLength); ISCSI_NACL_PARAM(FirstBurstLength); ISCSI_NACL_PARAM(DefaultTime2Wait); ISCSI_NACL_PARAM(DefaultTime2Retain); ISCSI_NACL_PARAM(MaxOutstandingR2T); ISCSI_NACL_PARAM(DataPDUInOrder); ISCSI_NACL_PARAM(DataSequenceInOrder); ISCSI_NACL_PARAM(ErrorRecoveryLevel); static struct configfs_attribute *lio_target_nacl_param_attrs[] = { &iscsi_nacl_param_attr_MaxConnections, &iscsi_nacl_param_attr_InitialR2T, &iscsi_nacl_param_attr_ImmediateData, &iscsi_nacl_param_attr_MaxBurstLength, &iscsi_nacl_param_attr_FirstBurstLength, &iscsi_nacl_param_attr_DefaultTime2Wait, &iscsi_nacl_param_attr_DefaultTime2Retain, &iscsi_nacl_param_attr_MaxOutstandingR2T, &iscsi_nacl_param_attr_DataPDUInOrder, &iscsi_nacl_param_attr_DataSequenceInOrder, &iscsi_nacl_param_attr_ErrorRecoveryLevel, NULL, }; /* End items for lio_target_nacl_param_cit */ /* Start items for lio_target_acl_cit */ static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page) { struct se_node_acl *se_nacl = acl_to_nacl(item); struct iscsi_session *sess; struct iscsi_conn *conn; struct se_session *se_sess; ssize_t rb = 0; u32 max_cmd_sn; spin_lock_bh(&se_nacl->nacl_sess_lock); se_sess = se_nacl->nacl_sess; if (!se_sess) { rb += sysfs_emit_at(page, rb, "No active iSCSI Session for Initiator" " Endpoint: %s\n", se_nacl->initiatorname); } else { sess = se_sess->fabric_sess_ptr; rb += sysfs_emit_at(page, rb, "InitiatorName: %s\n", sess->sess_ops->InitiatorName); rb += sysfs_emit_at(page, rb, "InitiatorAlias: %s\n", sess->sess_ops->InitiatorAlias); rb += sysfs_emit_at(page, rb, "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ", sess->sid, sess->isid, sess->tsih); rb += sysfs_emit_at(page, rb, "SessionType: %s\n", (sess->sess_ops->SessionType) ? "Discovery" : "Normal"); rb += sysfs_emit_at(page, rb, "Session State: "); switch (sess->session_state) { case TARG_SESS_STATE_FREE: rb += sysfs_emit_at(page, rb, "TARG_SESS_FREE\n"); break; case TARG_SESS_STATE_ACTIVE: rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_ACTIVE\n"); break; case TARG_SESS_STATE_LOGGED_IN: rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_LOGGED_IN\n"); break; case TARG_SESS_STATE_FAILED: rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_FAILED\n"); break; case TARG_SESS_STATE_IN_CONTINUE: rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_IN_CONTINUE\n"); break; default: rb += sysfs_emit_at(page, rb, "ERROR: Unknown Session" " State!\n"); break; } rb += sysfs_emit_at(page, rb, "---------------------[iSCSI Session" " Values]-----------------------\n"); rb += sysfs_emit_at(page, rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" " : MaxCmdSN : ITT : TTT\n"); max_cmd_sn = (u32) atomic_read(&sess->max_cmd_sn); rb += sysfs_emit_at(page, rb, " 0x%08x 0x%08x 0x%08x 0x%08x" " 0x%08x 0x%08x\n", sess->cmdsn_window, (max_cmd_sn - sess->exp_cmd_sn) + 1, sess->exp_cmd_sn, max_cmd_sn, sess->init_task_tag, sess->targ_xfer_tag); rb += sysfs_emit_at(page, rb, "----------------------[iSCSI" " Connections]-------------------------\n"); spin_lock(&sess->conn_lock); list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { rb += sysfs_emit_at(page, rb, "CID: %hu Connection" " State: ", conn->cid); switch (conn->conn_state) { case TARG_CONN_STATE_FREE: rb += sysfs_emit_at(page, rb, "TARG_CONN_STATE_FREE\n"); break; case TARG_CONN_STATE_XPT_UP: rb += sysfs_emit_at(page, rb, "TARG_CONN_STATE_XPT_UP\n"); break; case TARG_CONN_STATE_IN_LOGIN: rb += sysfs_emit_at(page, rb, "TARG_CONN_STATE_IN_LOGIN\n"); break; case TARG_CONN_STATE_LOGGED_IN: rb += sysfs_emit_at(page, rb, "TARG_CONN_STATE_LOGGED_IN\n"); break; case TARG_CONN_STATE_IN_LOGOUT: rb += sysfs_emit_at(page, rb, "TARG_CONN_STATE_IN_LOGOUT\n"); break; case TARG_CONN_STATE_LOGOUT_REQUESTED: rb += sysfs_emit_at(page, rb, "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); break; case TARG_CONN_STATE_CLEANUP_WAIT: rb += sysfs_emit_at(page, rb, "TARG_CONN_STATE_CLEANUP_WAIT\n"); break; default: rb += sysfs_emit_at(page, rb, "ERROR: Unknown Connection State!\n"); break; } rb += sysfs_emit_at(page, rb, " Address %pISc %s", &conn->login_sockaddr, (conn->network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); rb += sysfs_emit_at(page, rb, " StatSN: 0x%08x\n", conn->stat_sn); } spin_unlock(&sess->conn_lock); } spin_unlock_bh(&se_nacl->nacl_sess_lock); return rb; } static ssize_t lio_target_nacl_cmdsn_depth_show(struct config_item *item, char *page) { return sprintf(page, "%u\n", acl_to_nacl(item)->queue_depth); } static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item, const char *page, size_t count) { struct se_node_acl *se_nacl = acl_to_nacl(item); 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; u32 cmdsn_depth = 0; int ret; ret = kstrtou32(page, 0, &cmdsn_depth); if (ret) return ret; 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; ret = core_tpg_set_initiator_node_queue_depth(se_nacl, cmdsn_depth); 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; } static ssize_t lio_target_nacl_tag_show(struct config_item *item, char *page) { return snprintf(page, PAGE_SIZE, "%s", acl_to_nacl(item)->acl_tag); } static ssize_t lio_target_nacl_tag_store(struct config_item *item, const char *page, size_t count) { struct se_node_acl *se_nacl = acl_to_nacl(item); int ret; ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page); if (ret < 0) return ret; return count; } CONFIGFS_ATTR_RO(lio_target_nacl_, info); CONFIGFS_ATTR(lio_target_nacl_, cmdsn_depth); CONFIGFS_ATTR(lio_target_nacl_, tag); static struct configfs_attribute *lio_target_initiator_attrs[] = { &lio_target_nacl_attr_info, &lio_target_nacl_attr_cmdsn_depth, &lio_target_nacl_attr_tag, NULL, }; static int lio_target_init_nodeacl(struct se_node_acl *se_nacl, const char *name) { struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group, "iscsi_sess_stats", &iscsi_stat_sess_cit); configfs_add_default_group(&acl->node_stat_grps.iscsi_sess_stats_group, &se_nacl->acl_fabric_stat_group); return 0; } /* 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_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_portal_group *se_tpg = attrib_to_tpg(item); \ 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", tpg->tpg_attrib.name); \ iscsit_put_tpg(tpg); \ return rb; \ } \ \ static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\ const char *page, size_t count) \ { \ struct se_portal_group *se_tpg = attrib_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ u32 val; \ int ret; \ \ if (iscsit_get_tpg(tpg) < 0) \ return -EINVAL; \ \ ret = kstrtou32(page, 0, &val); \ if (ret) \ goto out; \ ret = iscsit_ta_##name(tpg, val); \ if (ret < 0) \ goto out; \ \ iscsit_put_tpg(tpg); \ return count; \ out: \ iscsit_put_tpg(tpg); \ return ret; \ } \ CONFIGFS_ATTR(iscsi_tpg_attrib_, name) DEF_TPG_ATTRIB(authentication); DEF_TPG_ATTRIB(login_timeout); DEF_TPG_ATTRIB(netif_timeout); DEF_TPG_ATTRIB(generate_node_acls); DEF_TPG_ATTRIB(default_cmdsn_depth); DEF_TPG_ATTRIB(cache_dynamic_acls); DEF_TPG_ATTRIB(demo_mode_write_protect); DEF_TPG_ATTRIB(prod_mode_write_protect); DEF_TPG_ATTRIB(demo_mode_discovery); DEF_TPG_ATTRIB(default_erl); DEF_TPG_ATTRIB(t10_pi); DEF_TPG_ATTRIB(fabric_prot_type); DEF_TPG_ATTRIB(tpg_enabled_sendtargets); DEF_TPG_ATTRIB(login_keys_workaround); static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_attr_authentication, &iscsi_tpg_attrib_attr_login_timeout, &iscsi_tpg_attrib_attr_netif_timeout, &iscsi_tpg_attrib_attr_generate_node_acls, &iscsi_tpg_attrib_attr_default_cmdsn_depth, &iscsi_tpg_attrib_attr_cache_dynamic_acls, &iscsi_tpg_attrib_attr_demo_mode_write_protect, &iscsi_tpg_attrib_attr_prod_mode_write_protect, &iscsi_tpg_attrib_attr_demo_mode_discovery, &iscsi_tpg_attrib_attr_default_erl, &iscsi_tpg_attrib_attr_t10_pi, &iscsi_tpg_attrib_attr_fabric_prot_type, &iscsi_tpg_attrib_attr_tpg_enabled_sendtargets, &iscsi_tpg_attrib_attr_login_keys_workaround, NULL, }; /* End items for lio_target_tpg_attrib_cit */ /* Start items for lio_target_tpg_auth_cit */ #define __DEF_TPG_AUTH_STR(prefix, name, flags) \ static ssize_t __iscsi_##prefix##_##name##_show(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_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ return -EPERM; \ \ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ } \ \ static ssize_t __iscsi_##prefix##_##name##_store(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); \ struct iscsi_node_auth *auth = &tpg->tpg_demo_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_TPG_AUTH_STR(name, flags) \ __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \ char *page) \ { \ return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \ } \ \ static ssize_t iscsi_tpg_auth_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ return __iscsi_tpg_auth_##name##_store(auth_to_tpg(item), page, count); \ } \ \ CONFIGFS_ATTR(iscsi_tpg_auth_, name); DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); #define __DEF_TPG_AUTH_INT(prefix, name) \ static ssize_t __iscsi_##prefix##_##name##_show(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_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ return -EPERM; \ \ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ } #define DEF_TPG_AUTH_INT(name) \ __DEF_TPG_AUTH_INT(tpg_auth, name) \ static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \ char *page) \ { \ return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \ } \ CONFIGFS_ATTR_RO(iscsi_tpg_auth_, name); DEF_TPG_AUTH_INT(authenticate_target); static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { &iscsi_tpg_auth_attr_userid, &iscsi_tpg_auth_attr_password, &iscsi_tpg_auth_attr_authenticate_target, &iscsi_tpg_auth_attr_userid_mutual, &iscsi_tpg_auth_attr_password_mutual, NULL, }; /* End items for lio_target_tpg_auth_cit */ /* Start items for lio_target_tpg_param_cit */ #define DEF_TPG_PARAM(name) \ static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_portal_group *se_tpg = param_to_tpg(item); \ 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_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ struct se_portal_group *se_tpg = param_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ char *buf; \ int ret, len; \ \ buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ if (!buf) \ return -ENOMEM; \ len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ if (isspace(buf[len-1])) \ buf[len-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; \ } \ CONFIGFS_ATTR(iscsi_tpg_param_, name) DEF_TPG_PARAM(AuthMethod); DEF_TPG_PARAM(HeaderDigest); DEF_TPG_PARAM(DataDigest); DEF_TPG_PARAM(MaxConnections); DEF_TPG_PARAM(TargetAlias); DEF_TPG_PARAM(InitialR2T); DEF_TPG_PARAM(ImmediateData); DEF_TPG_PARAM(MaxRecvDataSegmentLength); DEF_TPG_PARAM(MaxXmitDataSegmentLength); DEF_TPG_PARAM(MaxBurstLength); DEF_TPG_PARAM(FirstBurstLength); DEF_TPG_PARAM(DefaultTime2Wait); DEF_TPG_PARAM(DefaultTime2Retain); DEF_TPG_PARAM(MaxOutstandingR2T); DEF_TPG_PARAM(DataPDUInOrder); DEF_TPG_PARAM(DataSequenceInOrder); DEF_TPG_PARAM(ErrorRecoveryLevel); DEF_TPG_PARAM(IFMarker); DEF_TPG_PARAM(OFMarker); DEF_TPG_PARAM(IFMarkInt); DEF_TPG_PARAM(OFMarkInt); static struct configfs_attribute *lio_target_tpg_param_attrs[] = { &iscsi_tpg_param_attr_AuthMethod, &iscsi_tpg_param_attr_HeaderDigest, &iscsi_tpg_param_attr_DataDigest, &iscsi_tpg_param_attr_MaxConnections, &iscsi_tpg_param_attr_TargetAlias, &iscsi_tpg_param_attr_InitialR2T, &iscsi_tpg_param_attr_ImmediateData, &iscsi_tpg_param_attr_MaxRecvDataSegmentLength, &iscsi_tpg_param_attr_MaxXmitDataSegmentLength, &iscsi_tpg_param_attr_MaxBurstLength, &iscsi_tpg_param_attr_FirstBurstLength, &iscsi_tpg_param_attr_DefaultTime2Wait, &iscsi_tpg_param_attr_DefaultTime2Retain, &iscsi_tpg_param_attr_MaxOutstandingR2T, &iscsi_tpg_param_attr_DataPDUInOrder, &iscsi_tpg_param_attr_DataSequenceInOrder, &iscsi_tpg_param_attr_ErrorRecoveryLevel, &iscsi_tpg_param_attr_IFMarker, &iscsi_tpg_param_attr_OFMarker, &iscsi_tpg_param_attr_IFMarkInt, &iscsi_tpg_param_attr_OFMarkInt, NULL, }; /* End items for lio_target_tpg_param_cit */ /* Start items for lio_target_tpg_cit */ static ssize_t lio_target_tpg_enable_show(struct config_item *item, char *page) { struct se_portal_group *se_tpg = to_tpg(item); 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_enable_store(struct config_item *item, const char *page, size_t count) { struct se_portal_group *se_tpg = to_tpg(item); struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); u32 op; int ret; ret = kstrtou32(page, 0, &op); if (ret) return ret; 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; } static ssize_t lio_target_tpg_dynamic_sessions_show(struct config_item *item, char *page) { return target_show_dynamic_sessions(to_tpg(item), page); } CONFIGFS_ATTR(lio_target_tpg_, enable); CONFIGFS_ATTR_RO(lio_target_tpg_, dynamic_sessions); static struct configfs_attribute *lio_target_tpg_attrs[] = { &lio_target_tpg_attr_enable, &lio_target_tpg_attr_dynamic_sessions, NULL, }; /* End items for lio_target_tpg_cit */ /* Start items for lio_target_tiqn_cit */ static struct se_portal_group *lio_target_tiqn_addtpg(struct se_wwn *wwn, const char *name) { struct iscsi_portal_group *tpg; struct iscsi_tiqn *tiqn; char *tpgt_str; int ret; u16 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_" */ ret = kstrtou16(tpgt_str, 0, &tpgt); if (ret) return NULL; tpg = iscsit_alloc_portal_group(tiqn, tpgt); if (!tpg) return NULL; ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI); if (ret < 0) goto free_out; 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); free_out: kfree(tpg); return NULL; } static 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_lio_version_show(struct config_item *item, char *page) { return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n"); } CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version); static struct configfs_attribute *lio_target_wwn_attrs[] = { &lio_target_wwn_attr_lio_version, NULL, }; static struct se_wwn *lio_target_call_coreaddtiqn( struct target_fabric_configfs *tf, struct config_group *group, const char *name) { struct iscsi_tiqn *tiqn; tiqn = iscsit_add_tiqn((unsigned char *)name); if (IS_ERR(tiqn)) return ERR_CAST(tiqn); 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; } static void lio_target_add_wwn_groups(struct se_wwn *wwn) { struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group, "iscsi_instance", &iscsi_stat_instance_cit); configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_instance_group, &tiqn->tiqn_wwn.fabric_stat_group); config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group, "iscsi_sess_err", &iscsi_stat_sess_err_cit); configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_sess_err_group, &tiqn->tiqn_wwn.fabric_stat_group); config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group, "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group, &tiqn->tiqn_wwn.fabric_stat_group); config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group, "iscsi_login_stats", &iscsi_stat_login_cit); configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_login_stats_group, &tiqn->tiqn_wwn.fabric_stat_group); config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group, "iscsi_logout_stats", &iscsi_stat_logout_cit); configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group, &tiqn->tiqn_wwn.fabric_stat_group); } static void lio_target_call_coredeltiqn( struct se_wwn *wwn) { struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 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_##name##_show(struct config_item *item, char *page) \ { \ return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl,\ page); \ } \ static ssize_t iscsi_disc_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ return __iscsi_disc_##name##_store(&iscsit_global->discovery_acl, \ page, count); \ \ } \ CONFIGFS_ATTR(iscsi_disc_, name) DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); #define DEF_DISC_AUTH_INT(name) \ __DEF_NACL_AUTH_INT(disc, name) \ static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \ { \ return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl, \ page); \ } \ CONFIGFS_ATTR_RO(iscsi_disc_, name) DEF_DISC_AUTH_INT(authenticate_target); static ssize_t iscsi_disc_enforce_discovery_auth_show(struct config_item *item, 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_enforce_discovery_auth_store(struct config_item *item, const char *page, size_t count) { struct iscsi_param *param; struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; u32 op; int err; err = kstrtou32(page, 0, &op); if (err) return -EINVAL; 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; } CONFIGFS_ATTR(iscsi_disc_, enforce_discovery_auth); static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { &iscsi_disc_attr_userid, &iscsi_disc_attr_password, &iscsi_disc_attr_authenticate_target, &iscsi_disc_attr_userid_mutual, &iscsi_disc_attr_password_mutual, &iscsi_disc_attr_enforce_discovery_auth, NULL, }; /* End lio_target_discovery_auth_cit */ /* Start functions for target_core_fabric_ops */ static char *iscsi_get_fabric_name(void) { return "iSCSI"; } 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, "%6phN", sess->isid); } static int lio_queue_data_in(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); struct iscsi_conn *conn = cmd->conn; cmd->i_state = ISTATE_SEND_DATAIN; return conn->conn_transport->iscsit_queue_data_in(conn, cmd); } static int lio_write_pending(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); struct iscsi_conn *conn = cmd->conn; if (!cmd->immediate_data && !cmd->unsolicited_data) return conn->conn_transport->iscsit_get_dataout(conn, cmd, false); 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); struct iscsi_conn *conn = cmd->conn; cmd->i_state = ISTATE_SEND_STATUS; if (cmd->se_cmd.scsi_status || cmd->sense_reason) { return iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state); } return conn->conn_transport->iscsit_queue_status(conn, cmd); } static void 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); } static void lio_aborted_task(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd); } static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg) { return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); } static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) { return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn; } static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) { return iscsi_tpg(se_tpg)->tpgt; } static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) { return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth; } static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) { return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls; } static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) { return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls; } static int lio_tpg_check_demo_mode_write_protect( struct se_portal_group *se_tpg) { return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect; } static int lio_tpg_check_prod_mode_write_protect( struct se_portal_group *se_tpg) { return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect; } static int lio_tpg_check_prot_fabric_only( struct se_portal_group *se_tpg) { /* * Only report fabric_prot_type if t10_pi has also been enabled * for incoming ib_isert sessions. */ if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi) return 0; return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type; } /* * This function calls iscsit_inc_session_usage_count() on the * struct iscsi_session in question. */ static void lio_tpg_close_session(struct se_session *se_sess) { struct iscsi_session *sess = se_sess->fabric_sess_ptr; struct se_portal_group *se_tpg = &sess->tpg->tpg_se_tpg; spin_lock_bh(&se_tpg->session_lock); spin_lock(&sess->conn_lock); if (atomic_read(&sess->session_fall_back_to_erl0) || atomic_read(&sess->session_logout) || atomic_read(&sess->session_close) || (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { spin_unlock(&sess->conn_lock); spin_unlock_bh(&se_tpg->session_lock); return; } iscsit_inc_session_usage_count(sess); atomic_set(&sess->session_reinstatement, 1); atomic_set(&sess->session_fall_back_to_erl0, 1); atomic_set(&sess->session_close, 1); spin_unlock(&sess->conn_lock); iscsit_stop_time2retain_timer(sess); spin_unlock_bh(&se_tpg->session_lock); iscsit_stop_session(sess, 1, 1); iscsit_dec_session_usage_count(sess); } static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) { return iscsi_tpg(se_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); struct se_portal_group *se_tpg = se_acl->se_tpg; struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); acl->node_attrib.nacl = acl; iscsit_set_default_node_attribues(acl, tpg); } static int lio_check_stop_free(struct se_cmd *se_cmd) { return target_put_sess_cmd(se_cmd); } static void lio_release_cmd(struct se_cmd *se_cmd) { struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd); iscsit_release_cmd(cmd); } const struct target_core_fabric_ops iscsi_ops = { .module = THIS_MODULE, .name = "iscsi", .node_acl_size = sizeof(struct iscsi_node_acl), .get_fabric_name = iscsi_get_fabric_name, .tpg_get_wwn = lio_tpg_get_endpoint_wwn, .tpg_get_tag = lio_tpg_get_tag, .tpg_get_default_depth = lio_tpg_get_default_depth, .tpg_check_demo_mode = lio_tpg_check_demo_mode, .tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache, .tpg_check_demo_mode_write_protect = lio_tpg_check_demo_mode_write_protect, .tpg_check_prod_mode_write_protect = lio_tpg_check_prod_mode_write_protect, .tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only, .tpg_get_inst_index = lio_tpg_get_inst_index, .check_stop_free = lio_check_stop_free, .release_cmd = lio_release_cmd, .close_session = lio_tpg_close_session, .sess_get_index = lio_sess_get_index, .sess_get_initiator_sid = lio_sess_get_initiator_sid, .write_pending = lio_write_pending, .write_pending_status = lio_write_pending_status, .set_default_node_attributes = lio_set_default_node_attributes, .get_cmd_state = iscsi_get_cmd_state, .queue_data_in = lio_queue_data_in, .queue_status = lio_queue_status, .queue_tm_rsp = lio_queue_tm_rsp, .aborted_task = lio_aborted_task, .fabric_make_wwn = lio_target_call_coreaddtiqn, .fabric_drop_wwn = lio_target_call_coredeltiqn, .add_wwn_groups = lio_target_add_wwn_groups, .fabric_make_tpg = lio_target_tiqn_addtpg, .fabric_drop_tpg = lio_target_tiqn_deltpg, .fabric_make_np = lio_target_call_addnptotpg, .fabric_drop_np = lio_target_call_delnpfromtpg, .fabric_init_nodeacl = lio_target_init_nodeacl, .tfc_discovery_attrs = lio_target_discovery_auth_attrs, .tfc_wwn_attrs = lio_target_wwn_attrs, .tfc_tpg_base_attrs = lio_target_tpg_attrs, .tfc_tpg_attrib_attrs = lio_target_tpg_attrib_attrs, .tfc_tpg_auth_attrs = lio_target_tpg_auth_attrs, .tfc_tpg_param_attrs = lio_target_tpg_param_attrs, .tfc_tpg_np_base_attrs = lio_target_portal_attrs, .tfc_tpg_nacl_base_attrs = lio_target_initiator_attrs, .tfc_tpg_nacl_attrib_attrs = lio_target_nacl_attrib_attrs, .tfc_tpg_nacl_auth_attrs = lio_target_nacl_auth_attrs, .tfc_tpg_nacl_param_attrs = lio_target_nacl_param_attrs, };