| /******************************************************************************* |
| * This file contains iSCSI Target Portal Group related functions. |
| * |
| * \u00a9 Copyright 2007-2011 RisingTide Systems LLC. |
| * |
| * Licensed to the Linux Foundation under the General Public License (GPL) version 2. |
| * |
| * 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 <target/target_core_base.h> |
| #include <target/target_core_fabric.h> |
| #include <target/target_core_configfs.h> |
| |
| #include "iscsi_target_core.h" |
| #include "iscsi_target_erl0.h" |
| #include "iscsi_target_login.h" |
| #include "iscsi_target_nodeattrib.h" |
| #include "iscsi_target_tpg.h" |
| #include "iscsi_target_util.h" |
| #include "iscsi_target.h" |
| #include "iscsi_target_parameters.h" |
| |
| struct iscsi_portal_group *iscsit_alloc_portal_group(struct iscsi_tiqn *tiqn, u16 tpgt) |
| { |
| struct iscsi_portal_group *tpg; |
| |
| tpg = kzalloc(sizeof(struct iscsi_portal_group), GFP_KERNEL); |
| if (!tpg) { |
| pr_err("Unable to allocate struct iscsi_portal_group\n"); |
| return NULL; |
| } |
| |
| tpg->tpgt = tpgt; |
| tpg->tpg_state = TPG_STATE_FREE; |
| tpg->tpg_tiqn = tiqn; |
| INIT_LIST_HEAD(&tpg->tpg_gnp_list); |
| INIT_LIST_HEAD(&tpg->tpg_list); |
| mutex_init(&tpg->tpg_access_lock); |
| mutex_init(&tpg->np_login_lock); |
| spin_lock_init(&tpg->tpg_state_lock); |
| spin_lock_init(&tpg->tpg_np_lock); |
| |
| return tpg; |
| } |
| |
| static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *); |
| |
| int iscsit_load_discovery_tpg(void) |
| { |
| struct iscsi_param *param; |
| struct iscsi_portal_group *tpg; |
| int ret; |
| |
| tpg = iscsit_alloc_portal_group(NULL, 1); |
| if (!tpg) { |
| pr_err("Unable to allocate struct iscsi_portal_group\n"); |
| return -1; |
| } |
| |
| ret = core_tpg_register( |
| &lio_target_fabric_configfs->tf_ops, |
| NULL, &tpg->tpg_se_tpg, tpg, |
| TRANSPORT_TPG_TYPE_DISCOVERY); |
| if (ret < 0) { |
| kfree(tpg); |
| return -1; |
| } |
| |
| tpg->sid = 1; /* First Assigned LIO Session ID */ |
| iscsit_set_default_tpg_attribs(tpg); |
| |
| if (iscsi_create_default_params(&tpg->param_list) < 0) |
| goto out; |
| /* |
| * By default we disable authentication for discovery sessions, |
| * this can be changed with: |
| * |
| * /sys/kernel/config/target/iscsi/discovery_auth/enforce_discovery_auth |
| */ |
| param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list); |
| if (!param) |
| goto out; |
| |
| if (iscsi_update_param_value(param, "CHAP,None") < 0) |
| goto out; |
| |
| tpg->tpg_attrib.authentication = 0; |
| |
| spin_lock(&tpg->tpg_state_lock); |
| tpg->tpg_state = TPG_STATE_ACTIVE; |
| spin_unlock(&tpg->tpg_state_lock); |
| |
| iscsit_global->discovery_tpg = tpg; |
| pr_debug("CORE[0] - Allocated Discovery TPG\n"); |
| |
| return 0; |
| out: |
| if (tpg->sid == 1) |
| core_tpg_deregister(&tpg->tpg_se_tpg); |
| kfree(tpg); |
| return -1; |
| } |
| |
| void iscsit_release_discovery_tpg(void) |
| { |
| struct iscsi_portal_group *tpg = iscsit_global->discovery_tpg; |
| |
| if (!tpg) |
| return; |
| |
| core_tpg_deregister(&tpg->tpg_se_tpg); |
| |
| kfree(tpg); |
| iscsit_global->discovery_tpg = NULL; |
| } |
| |
| struct iscsi_portal_group *iscsit_get_tpg_from_np( |
| struct iscsi_tiqn *tiqn, |
| struct iscsi_np *np) |
| { |
| struct iscsi_portal_group *tpg = NULL; |
| struct iscsi_tpg_np *tpg_np; |
| |
| spin_lock(&tiqn->tiqn_tpg_lock); |
| list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) { |
| |
| spin_lock(&tpg->tpg_state_lock); |
| if (tpg->tpg_state == TPG_STATE_FREE) { |
| spin_unlock(&tpg->tpg_state_lock); |
| continue; |
| } |
| spin_unlock(&tpg->tpg_state_lock); |
| |
| spin_lock(&tpg->tpg_np_lock); |
| list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) { |
| if (tpg_np->tpg_np == np) { |
| spin_unlock(&tpg->tpg_np_lock); |
| spin_unlock(&tiqn->tiqn_tpg_lock); |
| return tpg; |
| } |
| } |
| spin_unlock(&tpg->tpg_np_lock); |
| } |
| spin_unlock(&tiqn->tiqn_tpg_lock); |
| |
| return NULL; |
| } |
| |
| int iscsit_get_tpg( |
| struct iscsi_portal_group *tpg) |
| { |
| int ret; |
| |
| ret = mutex_lock_interruptible(&tpg->tpg_access_lock); |
| return ((ret != 0) || signal_pending(current)) ? -1 : 0; |
| } |
| |
| void iscsit_put_tpg(struct iscsi_portal_group *tpg) |
| { |
| mutex_unlock(&tpg->tpg_access_lock); |
| } |
| |
| static void iscsit_clear_tpg_np_login_thread( |
| struct iscsi_tpg_np *tpg_np, |
| struct iscsi_portal_group *tpg) |
| { |
| if (!tpg_np->tpg_np) { |
| pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n"); |
| return; |
| } |
| |
| iscsit_reset_np_thread(tpg_np->tpg_np, tpg_np, tpg); |
| } |
| |
| void iscsit_clear_tpg_np_login_threads( |
| struct iscsi_portal_group *tpg) |
| { |
| struct iscsi_tpg_np *tpg_np; |
| |
| spin_lock(&tpg->tpg_np_lock); |
| list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) { |
| if (!tpg_np->tpg_np) { |
| pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n"); |
| continue; |
| } |
| spin_unlock(&tpg->tpg_np_lock); |
| iscsit_clear_tpg_np_login_thread(tpg_np, tpg); |
| spin_lock(&tpg->tpg_np_lock); |
| } |
| spin_unlock(&tpg->tpg_np_lock); |
| } |
| |
| void iscsit_tpg_dump_params(struct iscsi_portal_group *tpg) |
| { |
| iscsi_print_params(tpg->param_list); |
| } |
| |
| static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| a->authentication = TA_AUTHENTICATION; |
| a->login_timeout = TA_LOGIN_TIMEOUT; |
| a->netif_timeout = TA_NETIF_TIMEOUT; |
| a->default_cmdsn_depth = TA_DEFAULT_CMDSN_DEPTH; |
| a->generate_node_acls = TA_GENERATE_NODE_ACLS; |
| a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS; |
| a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT; |
| a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT; |
| } |
| |
| int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg) |
| { |
| if (tpg->tpg_state != TPG_STATE_FREE) { |
| pr_err("Unable to add iSCSI Target Portal Group: %d" |
| " while not in TPG_STATE_FREE state.\n", tpg->tpgt); |
| return -EEXIST; |
| } |
| iscsit_set_default_tpg_attribs(tpg); |
| |
| if (iscsi_create_default_params(&tpg->param_list) < 0) |
| goto err_out; |
| |
| ISCSI_TPG_ATTRIB(tpg)->tpg = tpg; |
| |
| spin_lock(&tpg->tpg_state_lock); |
| tpg->tpg_state = TPG_STATE_INACTIVE; |
| spin_unlock(&tpg->tpg_state_lock); |
| |
| spin_lock(&tiqn->tiqn_tpg_lock); |
| list_add_tail(&tpg->tpg_list, &tiqn->tiqn_tpg_list); |
| tiqn->tiqn_ntpgs++; |
| pr_debug("CORE[%s]_TPG[%hu] - Added iSCSI Target Portal Group\n", |
| tiqn->tiqn, tpg->tpgt); |
| spin_unlock(&tiqn->tiqn_tpg_lock); |
| |
| return 0; |
| err_out: |
| if (tpg->param_list) { |
| iscsi_release_param_list(tpg->param_list); |
| tpg->param_list = NULL; |
| } |
| kfree(tpg); |
| return -ENOMEM; |
| } |
| |
| int iscsit_tpg_del_portal_group( |
| struct iscsi_tiqn *tiqn, |
| struct iscsi_portal_group *tpg, |
| int force) |
| { |
| u8 old_state = tpg->tpg_state; |
| |
| spin_lock(&tpg->tpg_state_lock); |
| tpg->tpg_state = TPG_STATE_INACTIVE; |
| spin_unlock(&tpg->tpg_state_lock); |
| |
| if (iscsit_release_sessions_for_tpg(tpg, force) < 0) { |
| pr_err("Unable to delete iSCSI Target Portal Group:" |
| " %hu while active sessions exist, and force=0\n", |
| tpg->tpgt); |
| tpg->tpg_state = old_state; |
| return -EPERM; |
| } |
| |
| core_tpg_clear_object_luns(&tpg->tpg_se_tpg); |
| |
| if (tpg->param_list) { |
| iscsi_release_param_list(tpg->param_list); |
| tpg->param_list = NULL; |
| } |
| |
| core_tpg_deregister(&tpg->tpg_se_tpg); |
| |
| spin_lock(&tpg->tpg_state_lock); |
| tpg->tpg_state = TPG_STATE_FREE; |
| spin_unlock(&tpg->tpg_state_lock); |
| |
| spin_lock(&tiqn->tiqn_tpg_lock); |
| tiqn->tiqn_ntpgs--; |
| list_del(&tpg->tpg_list); |
| spin_unlock(&tiqn->tiqn_tpg_lock); |
| |
| pr_debug("CORE[%s]_TPG[%hu] - Deleted iSCSI Target Portal Group\n", |
| tiqn->tiqn, tpg->tpgt); |
| |
| kfree(tpg); |
| return 0; |
| } |
| |
| int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg) |
| { |
| struct iscsi_param *param; |
| struct iscsi_tiqn *tiqn = tpg->tpg_tiqn; |
| |
| spin_lock(&tpg->tpg_state_lock); |
| if (tpg->tpg_state == TPG_STATE_ACTIVE) { |
| pr_err("iSCSI target portal group: %hu is already" |
| " active, ignoring request.\n", tpg->tpgt); |
| spin_unlock(&tpg->tpg_state_lock); |
| return -EINVAL; |
| } |
| /* |
| * Make sure that AuthMethod does not contain None as an option |
| * unless explictly disabled. Set the default to CHAP if authentication |
| * is enforced (as per default), and remove the NONE option. |
| */ |
| param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list); |
| if (!param) { |
| spin_unlock(&tpg->tpg_state_lock); |
| return -ENOMEM; |
| } |
| |
| if (ISCSI_TPG_ATTRIB(tpg)->authentication) { |
| if (!strcmp(param->value, NONE)) |
| if (iscsi_update_param_value(param, CHAP) < 0) { |
| spin_unlock(&tpg->tpg_state_lock); |
| return -ENOMEM; |
| } |
| if (iscsit_ta_authentication(tpg, 1) < 0) { |
| spin_unlock(&tpg->tpg_state_lock); |
| return -ENOMEM; |
| } |
| } |
| |
| tpg->tpg_state = TPG_STATE_ACTIVE; |
| spin_unlock(&tpg->tpg_state_lock); |
| |
| spin_lock(&tiqn->tiqn_tpg_lock); |
| tiqn->tiqn_active_tpgs++; |
| pr_debug("iSCSI_TPG[%hu] - Enabled iSCSI Target Portal Group\n", |
| tpg->tpgt); |
| spin_unlock(&tiqn->tiqn_tpg_lock); |
| |
| return 0; |
| } |
| |
| int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *tpg, int force) |
| { |
| struct iscsi_tiqn *tiqn; |
| u8 old_state = tpg->tpg_state; |
| |
| spin_lock(&tpg->tpg_state_lock); |
| if (tpg->tpg_state == TPG_STATE_INACTIVE) { |
| pr_err("iSCSI Target Portal Group: %hu is already" |
| " inactive, ignoring request.\n", tpg->tpgt); |
| spin_unlock(&tpg->tpg_state_lock); |
| return -EINVAL; |
| } |
| tpg->tpg_state = TPG_STATE_INACTIVE; |
| spin_unlock(&tpg->tpg_state_lock); |
| |
| iscsit_clear_tpg_np_login_threads(tpg); |
| |
| if (iscsit_release_sessions_for_tpg(tpg, force) < 0) { |
| spin_lock(&tpg->tpg_state_lock); |
| tpg->tpg_state = old_state; |
| spin_unlock(&tpg->tpg_state_lock); |
| pr_err("Unable to disable iSCSI Target Portal Group:" |
| " %hu while active sessions exist, and force=0\n", |
| tpg->tpgt); |
| return -EPERM; |
| } |
| |
| tiqn = tpg->tpg_tiqn; |
| if (!tiqn || (tpg == iscsit_global->discovery_tpg)) |
| return 0; |
| |
| spin_lock(&tiqn->tiqn_tpg_lock); |
| tiqn->tiqn_active_tpgs--; |
| pr_debug("iSCSI_TPG[%hu] - Disabled iSCSI Target Portal Group\n", |
| tpg->tpgt); |
| spin_unlock(&tiqn->tiqn_tpg_lock); |
| |
| return 0; |
| } |
| |
| struct iscsi_node_attrib *iscsit_tpg_get_node_attrib( |
| struct iscsi_session *sess) |
| { |
| struct se_session *se_sess = sess->se_sess; |
| struct se_node_acl *se_nacl = se_sess->se_node_acl; |
| struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl, |
| se_node_acl); |
| |
| return &acl->node_attrib; |
| } |
| |
| struct iscsi_tpg_np *iscsit_tpg_locate_child_np( |
| struct iscsi_tpg_np *tpg_np, |
| int network_transport) |
| { |
| struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp; |
| |
| spin_lock(&tpg_np->tpg_np_parent_lock); |
| list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp, |
| &tpg_np->tpg_np_parent_list, tpg_np_child_list) { |
| if (tpg_np_child->tpg_np->np_network_transport == |
| network_transport) { |
| spin_unlock(&tpg_np->tpg_np_parent_lock); |
| return tpg_np_child; |
| } |
| } |
| spin_unlock(&tpg_np->tpg_np_parent_lock); |
| |
| return NULL; |
| } |
| |
| struct iscsi_tpg_np *iscsit_tpg_add_network_portal( |
| struct iscsi_portal_group *tpg, |
| struct __kernel_sockaddr_storage *sockaddr, |
| char *ip_str, |
| struct iscsi_tpg_np *tpg_np_parent, |
| int network_transport) |
| { |
| struct iscsi_np *np; |
| struct iscsi_tpg_np *tpg_np; |
| |
| tpg_np = kzalloc(sizeof(struct iscsi_tpg_np), GFP_KERNEL); |
| if (!tpg_np) { |
| pr_err("Unable to allocate memory for" |
| " struct iscsi_tpg_np.\n"); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| np = iscsit_add_np(sockaddr, ip_str, network_transport); |
| if (IS_ERR(np)) { |
| kfree(tpg_np); |
| return ERR_CAST(np); |
| } |
| |
| INIT_LIST_HEAD(&tpg_np->tpg_np_list); |
| INIT_LIST_HEAD(&tpg_np->tpg_np_child_list); |
| INIT_LIST_HEAD(&tpg_np->tpg_np_parent_list); |
| spin_lock_init(&tpg_np->tpg_np_parent_lock); |
| tpg_np->tpg_np = np; |
| tpg_np->tpg = tpg; |
| |
| spin_lock(&tpg->tpg_np_lock); |
| list_add_tail(&tpg_np->tpg_np_list, &tpg->tpg_gnp_list); |
| tpg->num_tpg_nps++; |
| if (tpg->tpg_tiqn) |
| tpg->tpg_tiqn->tiqn_num_tpg_nps++; |
| spin_unlock(&tpg->tpg_np_lock); |
| |
| if (tpg_np_parent) { |
| tpg_np->tpg_np_parent = tpg_np_parent; |
| spin_lock(&tpg_np_parent->tpg_np_parent_lock); |
| list_add_tail(&tpg_np->tpg_np_child_list, |
| &tpg_np_parent->tpg_np_parent_list); |
| spin_unlock(&tpg_np_parent->tpg_np_parent_lock); |
| } |
| |
| pr_debug("CORE[%s] - Added Network Portal: %s:%hu,%hu on %s\n", |
| tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, |
| (np->np_network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); |
| |
| return tpg_np; |
| } |
| |
| static int iscsit_tpg_release_np( |
| struct iscsi_tpg_np *tpg_np, |
| struct iscsi_portal_group *tpg, |
| struct iscsi_np *np) |
| { |
| iscsit_clear_tpg_np_login_thread(tpg_np, tpg); |
| |
| pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n", |
| tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, |
| (np->np_network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); |
| |
| tpg_np->tpg_np = NULL; |
| tpg_np->tpg = NULL; |
| kfree(tpg_np); |
| /* |
| * iscsit_del_np() will shutdown struct iscsi_np when last TPG reference is released. |
| */ |
| return iscsit_del_np(np); |
| } |
| |
| int iscsit_tpg_del_network_portal( |
| struct iscsi_portal_group *tpg, |
| struct iscsi_tpg_np *tpg_np) |
| { |
| struct iscsi_np *np; |
| struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp; |
| int ret = 0; |
| |
| np = tpg_np->tpg_np; |
| if (!np) { |
| pr_err("Unable to locate struct iscsi_np from" |
| " struct iscsi_tpg_np\n"); |
| return -EINVAL; |
| } |
| |
| if (!tpg_np->tpg_np_parent) { |
| /* |
| * We are the parent tpg network portal. Release all of the |
| * child tpg_np's (eg: the non ISCSI_TCP ones) on our parent |
| * list first. |
| */ |
| list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp, |
| &tpg_np->tpg_np_parent_list, |
| tpg_np_child_list) { |
| ret = iscsit_tpg_del_network_portal(tpg, tpg_np_child); |
| if (ret < 0) |
| pr_err("iscsit_tpg_del_network_portal()" |
| " failed: %d\n", ret); |
| } |
| } else { |
| /* |
| * We are not the parent ISCSI_TCP tpg network portal. Release |
| * our own network portals from the child list. |
| */ |
| spin_lock(&tpg_np->tpg_np_parent->tpg_np_parent_lock); |
| list_del(&tpg_np->tpg_np_child_list); |
| spin_unlock(&tpg_np->tpg_np_parent->tpg_np_parent_lock); |
| } |
| |
| spin_lock(&tpg->tpg_np_lock); |
| list_del(&tpg_np->tpg_np_list); |
| tpg->num_tpg_nps--; |
| if (tpg->tpg_tiqn) |
| tpg->tpg_tiqn->tiqn_num_tpg_nps--; |
| spin_unlock(&tpg->tpg_np_lock); |
| |
| return iscsit_tpg_release_np(tpg_np, tpg, np); |
| } |
| |
| int iscsit_tpg_set_initiator_node_queue_depth( |
| struct iscsi_portal_group *tpg, |
| unsigned char *initiatorname, |
| u32 queue_depth, |
| int force) |
| { |
| return core_tpg_set_initiator_node_queue_depth(&tpg->tpg_se_tpg, |
| initiatorname, queue_depth, force); |
| } |
| |
| int iscsit_ta_authentication(struct iscsi_portal_group *tpg, u32 authentication) |
| { |
| unsigned char buf1[256], buf2[256], *none = NULL; |
| int len; |
| struct iscsi_param *param; |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if ((authentication != 1) && (authentication != 0)) { |
| pr_err("Illegal value for authentication parameter:" |
| " %u, ignoring request.\n", authentication); |
| return -1; |
| } |
| |
| memset(buf1, 0, sizeof(buf1)); |
| memset(buf2, 0, sizeof(buf2)); |
| |
| param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list); |
| if (!param) |
| return -EINVAL; |
| |
| if (authentication) { |
| snprintf(buf1, sizeof(buf1), "%s", param->value); |
| none = strstr(buf1, NONE); |
| if (!none) |
| goto out; |
| if (!strncmp(none + 4, ",", 1)) { |
| if (!strcmp(buf1, none)) |
| sprintf(buf2, "%s", none+5); |
| else { |
| none--; |
| *none = '\0'; |
| len = sprintf(buf2, "%s", buf1); |
| none += 5; |
| sprintf(buf2 + len, "%s", none); |
| } |
| } else { |
| none--; |
| *none = '\0'; |
| sprintf(buf2, "%s", buf1); |
| } |
| if (iscsi_update_param_value(param, buf2) < 0) |
| return -EINVAL; |
| } else { |
| snprintf(buf1, sizeof(buf1), "%s", param->value); |
| none = strstr(buf1, NONE); |
| if (none) |
| goto out; |
| strncat(buf1, ",", strlen(",")); |
| strncat(buf1, NONE, strlen(NONE)); |
| if (iscsi_update_param_value(param, buf1) < 0) |
| return -EINVAL; |
| } |
| |
| out: |
| a->authentication = authentication; |
| pr_debug("%s iSCSI Authentication Methods for TPG: %hu.\n", |
| a->authentication ? "Enforcing" : "Disabling", tpg->tpgt); |
| |
| return 0; |
| } |
| |
| int iscsit_ta_login_timeout( |
| struct iscsi_portal_group *tpg, |
| u32 login_timeout) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if (login_timeout > TA_LOGIN_TIMEOUT_MAX) { |
| pr_err("Requested Login Timeout %u larger than maximum" |
| " %u\n", login_timeout, TA_LOGIN_TIMEOUT_MAX); |
| return -EINVAL; |
| } else if (login_timeout < TA_LOGIN_TIMEOUT_MIN) { |
| pr_err("Requested Logout Timeout %u smaller than" |
| " minimum %u\n", login_timeout, TA_LOGIN_TIMEOUT_MIN); |
| return -EINVAL; |
| } |
| |
| a->login_timeout = login_timeout; |
| pr_debug("Set Logout Timeout to %u for Target Portal Group" |
| " %hu\n", a->login_timeout, tpg->tpgt); |
| |
| return 0; |
| } |
| |
| int iscsit_ta_netif_timeout( |
| struct iscsi_portal_group *tpg, |
| u32 netif_timeout) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if (netif_timeout > TA_NETIF_TIMEOUT_MAX) { |
| pr_err("Requested Network Interface Timeout %u larger" |
| " than maximum %u\n", netif_timeout, |
| TA_NETIF_TIMEOUT_MAX); |
| return -EINVAL; |
| } else if (netif_timeout < TA_NETIF_TIMEOUT_MIN) { |
| pr_err("Requested Network Interface Timeout %u smaller" |
| " than minimum %u\n", netif_timeout, |
| TA_NETIF_TIMEOUT_MIN); |
| return -EINVAL; |
| } |
| |
| a->netif_timeout = netif_timeout; |
| pr_debug("Set Network Interface Timeout to %u for" |
| " Target Portal Group %hu\n", a->netif_timeout, tpg->tpgt); |
| |
| return 0; |
| } |
| |
| int iscsit_ta_generate_node_acls( |
| struct iscsi_portal_group *tpg, |
| u32 flag) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if ((flag != 0) && (flag != 1)) { |
| pr_err("Illegal value %d\n", flag); |
| return -EINVAL; |
| } |
| |
| a->generate_node_acls = flag; |
| pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n", |
| tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled"); |
| |
| return 0; |
| } |
| |
| int iscsit_ta_default_cmdsn_depth( |
| struct iscsi_portal_group *tpg, |
| u32 tcq_depth) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if (tcq_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { |
| pr_err("Requested Default Queue Depth: %u larger" |
| " than maximum %u\n", tcq_depth, |
| TA_DEFAULT_CMDSN_DEPTH_MAX); |
| return -EINVAL; |
| } else if (tcq_depth < TA_DEFAULT_CMDSN_DEPTH_MIN) { |
| pr_err("Requested Default Queue Depth: %u smaller" |
| " than minimum %u\n", tcq_depth, |
| TA_DEFAULT_CMDSN_DEPTH_MIN); |
| return -EINVAL; |
| } |
| |
| a->default_cmdsn_depth = tcq_depth; |
| pr_debug("iSCSI_TPG[%hu] - Set Default CmdSN TCQ Depth to %u\n", |
| tpg->tpgt, a->default_cmdsn_depth); |
| |
| return 0; |
| } |
| |
| int iscsit_ta_cache_dynamic_acls( |
| struct iscsi_portal_group *tpg, |
| u32 flag) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if ((flag != 0) && (flag != 1)) { |
| pr_err("Illegal value %d\n", flag); |
| return -EINVAL; |
| } |
| |
| a->cache_dynamic_acls = flag; |
| pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group" |
| " ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ? |
| "Enabled" : "Disabled"); |
| |
| return 0; |
| } |
| |
| int iscsit_ta_demo_mode_write_protect( |
| struct iscsi_portal_group *tpg, |
| u32 flag) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if ((flag != 0) && (flag != 1)) { |
| pr_err("Illegal value %d\n", flag); |
| return -EINVAL; |
| } |
| |
| a->demo_mode_write_protect = flag; |
| pr_debug("iSCSI_TPG[%hu] - Demo Mode Write Protect bit: %s\n", |
| tpg->tpgt, (a->demo_mode_write_protect) ? "ON" : "OFF"); |
| |
| return 0; |
| } |
| |
| int iscsit_ta_prod_mode_write_protect( |
| struct iscsi_portal_group *tpg, |
| u32 flag) |
| { |
| struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; |
| |
| if ((flag != 0) && (flag != 1)) { |
| pr_err("Illegal value %d\n", flag); |
| return -EINVAL; |
| } |
| |
| a->prod_mode_write_protect = flag; |
| pr_debug("iSCSI_TPG[%hu] - Production Mode Write Protect bit:" |
| " %s\n", tpg->tpgt, (a->prod_mode_write_protect) ? |
| "ON" : "OFF"); |
| |
| return 0; |
| } |