| /******************************************************************************* |
| * 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 <nab@linux-iscsi.org> |
| * |
| * 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 <linux/configfs.h> |
| #include <linux/ctype.h> |
| #include <linux/export.h> |
| #include <linux/inet.h> |
| #include <target/target_core_base.h> |
| #include <target/target_core_fabric.h> |
| #include <target/iscsi/iscsi_transport.h> |
| |
| #include <target/iscsi/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 <target/iscsi/iscsi_target_stat.h> |
| |
| |
| /* 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_sctp_show(struct config_item *item, char *page) |
| { |
| struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); |
| 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_sctp_store(struct config_item *item, |
| const char *page, size_t count) |
| { |
| 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_sctp = NULL; |
| 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; |
| } |
| 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, |
| 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; |
| } |
| |
| static ssize_t lio_target_np_iser_show(struct config_item *item, char *page) |
| { |
| struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); |
| struct iscsi_tpg_np *tpg_np_iser; |
| ssize_t rb; |
| |
| tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND); |
| if (tpg_np_iser) |
| rb = sprintf(page, "1\n"); |
| else |
| rb = sprintf(page, "0\n"); |
| |
| return rb; |
| } |
| |
| static ssize_t lio_target_np_iser_store(struct config_item *item, |
| const char *page, size_t count) |
| { |
| 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_iser = NULL; |
| char *endptr; |
| u32 op; |
| int rc = 0; |
| |
| 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) { |
| rc = request_module("ib_isert"); |
| if (rc != 0) { |
| pr_warn("Unable to request_module for ib_isert\n"); |
| rc = 0; |
| } |
| |
| tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, |
| tpg_np, ISCSI_INFINIBAND); |
| if (IS_ERR(tpg_np_iser)) { |
| rc = PTR_ERR(tpg_np_iser); |
| goto out; |
| } |
| } else { |
| tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND); |
| if (tpg_np_iser) { |
| rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser); |
| if (rc < 0) |
| goto out; |
| } |
| } |
| |
| iscsit_put_tpg(tpg); |
| return count; |
| out: |
| iscsit_put_tpg(tpg); |
| return rc; |
| } |
| |
| CONFIGFS_ATTR(lio_target_np_, sctp); |
| CONFIGFS_ATTR(lio_target_np_, iser); |
| |
| static struct configfs_attribute *lio_target_portal_attrs[] = { |
| &lio_target_np_attr_sctp, |
| &lio_target_np_attr_iser, |
| 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; |
| 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 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 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 ":" */ |
| |
| ret = kstrtoul(port_str, 0, &port); |
| if (ret < 0) { |
| pr_err("kstrtoul() 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, -1, |
| (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 = kstrtoul(port_str, 0, &port); |
| if (ret < 0) { |
| pr_err("kstrtoul() 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 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 += sprintf(page+rb, "No active iSCSI Session for Initiator" |
| " Endpoint: %s\n", se_nacl->initiatorname); |
| } else { |
| sess = se_sess->fabric_sess_ptr; |
| |
| rb += sprintf(page+rb, "InitiatorName: %s\n", |
| sess->sess_ops->InitiatorName); |
| rb += sprintf(page+rb, "InitiatorAlias: %s\n", |
| sess->sess_ops->InitiatorAlias); |
| |
| rb += sprintf(page+rb, |
| "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ", |
| sess->sid, sess->isid, 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"); |
| max_cmd_sn = (u32) atomic_read(&sess->max_cmd_sn); |
| rb += sprintf(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 += 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 %pISc %s", &conn->login_sockaddr, |
| (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; |
| } |
| |
| 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; |
| } |
| |
| static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl) |
| { |
| struct iscsi_node_acl *acl = container_of(se_nacl, |
| struct iscsi_node_acl, se_node_acl); |
| |
| configfs_remove_default_groups(&acl->se_node_acl.acl_fabric_stat_group); |
| } |
| |
| /* 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); |
| |
| 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, |
| 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, |
| struct config_group *group, |
| 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) |
| 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; |
| } |
| |
| 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); |
| |
| 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); |
| |
| |
| 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_call_coredeltiqn( |
| struct se_wwn *wwn) |
| { |
| struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); |
| |
| configfs_remove_default_groups(&tiqn->tiqn_wwn.fabric_stat_group); |
| |
| 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); |
| |
| cmd->i_state = ISTATE_SEND_DATAIN; |
| cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd); |
| |
| 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); |
| 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); |
| |
| cmd->i_state = ISTATE_SEND_STATUS; |
| |
| if (cmd->se_cmd.scsi_status || cmd->sense_reason) { |
| iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); |
| return 0; |
| } |
| cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd); |
| |
| return 0; |
| } |
| |
| 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 int lio_tpg_shutdown_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) || |
| (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { |
| spin_unlock(&sess->conn_lock); |
| spin_unlock_bh(&se_tpg->session_lock); |
| return 0; |
| } |
| atomic_set(&sess->session_reinstatement, 1); |
| spin_unlock(&sess->conn_lock); |
| |
| iscsit_stop_time2retain_timer(sess); |
| spin_unlock_bh(&se_tpg->session_lock); |
| |
| 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) |
| { |
| 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, |
| .shutdown_session = lio_tpg_shutdown_session, |
| .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, |
| .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, |
| .fabric_cleanup_nodeacl = lio_target_cleanup_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, |
| }; |