920 строки
23 KiB
C
920 строки
23 KiB
C
/*******************************************************************************
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* This file contains iSCSI Target Portal Group related functions.
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*
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* (c) Copyright 2007-2013 Datera, Inc.
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*
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* Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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******************************************************************************/
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#include <linux/slab.h>
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#include <target/target_core_base.h>
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#include <target/target_core_fabric.h>
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#include <target/iscsi/iscsi_target_core.h>
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#include "iscsi_target_erl0.h"
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#include "iscsi_target_login.h"
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#include "iscsi_target_nodeattrib.h"
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#include "iscsi_target_tpg.h"
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#include "iscsi_target_util.h"
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#include "iscsi_target.h"
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#include "iscsi_target_parameters.h"
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#include <target/iscsi/iscsi_transport.h>
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struct iscsi_portal_group *iscsit_alloc_portal_group(struct iscsi_tiqn *tiqn, u16 tpgt)
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{
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struct iscsi_portal_group *tpg;
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tpg = kzalloc(sizeof(struct iscsi_portal_group), GFP_KERNEL);
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if (!tpg) {
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pr_err("Unable to allocate struct iscsi_portal_group\n");
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return NULL;
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}
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tpg->tpgt = tpgt;
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tpg->tpg_state = TPG_STATE_FREE;
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tpg->tpg_tiqn = tiqn;
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INIT_LIST_HEAD(&tpg->tpg_gnp_list);
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INIT_LIST_HEAD(&tpg->tpg_list);
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mutex_init(&tpg->tpg_access_lock);
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sema_init(&tpg->np_login_sem, 1);
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spin_lock_init(&tpg->tpg_state_lock);
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spin_lock_init(&tpg->tpg_np_lock);
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return tpg;
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}
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static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *);
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int iscsit_load_discovery_tpg(void)
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{
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struct iscsi_param *param;
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struct iscsi_portal_group *tpg;
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int ret;
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tpg = iscsit_alloc_portal_group(NULL, 1);
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if (!tpg) {
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pr_err("Unable to allocate struct iscsi_portal_group\n");
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return -1;
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}
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/*
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* Save iscsi_ops pointer for special case discovery TPG that
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* doesn't exist as se_wwn->wwn_group within configfs.
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*/
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tpg->tpg_se_tpg.se_tpg_tfo = &iscsi_ops;
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ret = core_tpg_register(NULL, &tpg->tpg_se_tpg, -1);
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if (ret < 0) {
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kfree(tpg);
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return -1;
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}
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tpg->sid = 1; /* First Assigned LIO Session ID */
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iscsit_set_default_tpg_attribs(tpg);
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if (iscsi_create_default_params(&tpg->param_list) < 0)
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goto out;
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/*
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* By default we disable authentication for discovery sessions,
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* this can be changed with:
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*
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* /sys/kernel/config/target/iscsi/discovery_auth/enforce_discovery_auth
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*/
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param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
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if (!param)
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goto free_pl_out;
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if (iscsi_update_param_value(param, "CHAP,None") < 0)
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goto free_pl_out;
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tpg->tpg_attrib.authentication = 0;
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_ACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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iscsit_global->discovery_tpg = tpg;
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pr_debug("CORE[0] - Allocated Discovery TPG\n");
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return 0;
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free_pl_out:
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iscsi_release_param_list(tpg->param_list);
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out:
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if (tpg->sid == 1)
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core_tpg_deregister(&tpg->tpg_se_tpg);
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kfree(tpg);
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return -1;
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}
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void iscsit_release_discovery_tpg(void)
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{
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struct iscsi_portal_group *tpg = iscsit_global->discovery_tpg;
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if (!tpg)
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return;
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iscsi_release_param_list(tpg->param_list);
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core_tpg_deregister(&tpg->tpg_se_tpg);
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kfree(tpg);
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iscsit_global->discovery_tpg = NULL;
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}
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struct iscsi_portal_group *iscsit_get_tpg_from_np(
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struct iscsi_tiqn *tiqn,
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struct iscsi_np *np,
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struct iscsi_tpg_np **tpg_np_out)
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{
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struct iscsi_portal_group *tpg = NULL;
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struct iscsi_tpg_np *tpg_np;
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spin_lock(&tiqn->tiqn_tpg_lock);
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list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
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spin_lock(&tpg->tpg_state_lock);
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if (tpg->tpg_state != TPG_STATE_ACTIVE) {
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spin_unlock(&tpg->tpg_state_lock);
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continue;
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}
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tpg->tpg_np_lock);
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list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
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if (tpg_np->tpg_np == np) {
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*tpg_np_out = tpg_np;
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kref_get(&tpg_np->tpg_np_kref);
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spin_unlock(&tpg->tpg_np_lock);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return tpg;
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}
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}
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spin_unlock(&tpg->tpg_np_lock);
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}
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return NULL;
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}
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int iscsit_get_tpg(
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struct iscsi_portal_group *tpg)
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{
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return mutex_lock_interruptible(&tpg->tpg_access_lock);
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}
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void iscsit_put_tpg(struct iscsi_portal_group *tpg)
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{
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mutex_unlock(&tpg->tpg_access_lock);
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}
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static void iscsit_clear_tpg_np_login_thread(
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struct iscsi_tpg_np *tpg_np,
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struct iscsi_portal_group *tpg,
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bool shutdown)
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{
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if (!tpg_np->tpg_np) {
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pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
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return;
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}
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if (shutdown)
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tpg_np->tpg_np->enabled = false;
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iscsit_reset_np_thread(tpg_np->tpg_np, tpg_np, tpg, shutdown);
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}
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static void iscsit_clear_tpg_np_login_threads(
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struct iscsi_portal_group *tpg,
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bool shutdown)
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{
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struct iscsi_tpg_np *tpg_np;
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spin_lock(&tpg->tpg_np_lock);
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list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
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if (!tpg_np->tpg_np) {
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pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
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continue;
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}
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spin_unlock(&tpg->tpg_np_lock);
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iscsit_clear_tpg_np_login_thread(tpg_np, tpg, shutdown);
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spin_lock(&tpg->tpg_np_lock);
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}
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spin_unlock(&tpg->tpg_np_lock);
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}
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void iscsit_tpg_dump_params(struct iscsi_portal_group *tpg)
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{
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iscsi_print_params(tpg->param_list);
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}
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static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
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{
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struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
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a->authentication = TA_AUTHENTICATION;
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a->login_timeout = TA_LOGIN_TIMEOUT;
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a->netif_timeout = TA_NETIF_TIMEOUT;
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a->default_cmdsn_depth = TA_DEFAULT_CMDSN_DEPTH;
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a->generate_node_acls = TA_GENERATE_NODE_ACLS;
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a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS;
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a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
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a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
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a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
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a->default_erl = TA_DEFAULT_ERL;
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a->t10_pi = TA_DEFAULT_T10_PI;
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a->fabric_prot_type = TA_DEFAULT_FABRIC_PROT_TYPE;
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a->tpg_enabled_sendtargets = TA_DEFAULT_TPG_ENABLED_SENDTARGETS;
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a->login_keys_workaround = TA_DEFAULT_LOGIN_KEYS_WORKAROUND;
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}
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int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
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{
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if (tpg->tpg_state != TPG_STATE_FREE) {
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pr_err("Unable to add iSCSI Target Portal Group: %d"
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" while not in TPG_STATE_FREE state.\n", tpg->tpgt);
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return -EEXIST;
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}
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iscsit_set_default_tpg_attribs(tpg);
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if (iscsi_create_default_params(&tpg->param_list) < 0)
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goto err_out;
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tpg->tpg_attrib.tpg = tpg;
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_INACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tiqn->tiqn_tpg_lock);
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list_add_tail(&tpg->tpg_list, &tiqn->tiqn_tpg_list);
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tiqn->tiqn_ntpgs++;
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pr_debug("CORE[%s]_TPG[%hu] - Added iSCSI Target Portal Group\n",
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tiqn->tiqn, tpg->tpgt);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return 0;
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err_out:
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if (tpg->param_list) {
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iscsi_release_param_list(tpg->param_list);
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tpg->param_list = NULL;
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}
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return -ENOMEM;
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}
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int iscsit_tpg_del_portal_group(
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struct iscsi_tiqn *tiqn,
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struct iscsi_portal_group *tpg,
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int force)
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{
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u8 old_state = tpg->tpg_state;
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_INACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
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pr_err("Unable to delete iSCSI Target Portal Group:"
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" %hu while active sessions exist, and force=0\n",
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tpg->tpgt);
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tpg->tpg_state = old_state;
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return -EPERM;
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}
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if (tpg->param_list) {
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iscsi_release_param_list(tpg->param_list);
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tpg->param_list = NULL;
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}
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core_tpg_deregister(&tpg->tpg_se_tpg);
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_FREE;
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tiqn->tiqn_tpg_lock);
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tiqn->tiqn_ntpgs--;
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list_del(&tpg->tpg_list);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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pr_debug("CORE[%s]_TPG[%hu] - Deleted iSCSI Target Portal Group\n",
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tiqn->tiqn, tpg->tpgt);
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kfree(tpg);
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return 0;
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}
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int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
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{
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struct iscsi_param *param;
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struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
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int ret;
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if (tpg->tpg_state == TPG_STATE_ACTIVE) {
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pr_err("iSCSI target portal group: %hu is already"
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" active, ignoring request.\n", tpg->tpgt);
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return -EINVAL;
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}
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/*
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* Make sure that AuthMethod does not contain None as an option
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* unless explictly disabled. Set the default to CHAP if authentication
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* is enforced (as per default), and remove the NONE option.
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*/
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param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
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if (!param)
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return -EINVAL;
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if (tpg->tpg_attrib.authentication) {
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if (!strcmp(param->value, NONE)) {
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ret = iscsi_update_param_value(param, CHAP);
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if (ret)
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goto err;
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}
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ret = iscsit_ta_authentication(tpg, 1);
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if (ret < 0)
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goto err;
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}
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = TPG_STATE_ACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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spin_lock(&tiqn->tiqn_tpg_lock);
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tiqn->tiqn_active_tpgs++;
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pr_debug("iSCSI_TPG[%hu] - Enabled iSCSI Target Portal Group\n",
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tpg->tpgt);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return 0;
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err:
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return ret;
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}
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int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *tpg, int force)
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{
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struct iscsi_tiqn *tiqn;
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u8 old_state = tpg->tpg_state;
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spin_lock(&tpg->tpg_state_lock);
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if (tpg->tpg_state == TPG_STATE_INACTIVE) {
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pr_err("iSCSI Target Portal Group: %hu is already"
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" inactive, ignoring request.\n", tpg->tpgt);
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spin_unlock(&tpg->tpg_state_lock);
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return -EINVAL;
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}
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tpg->tpg_state = TPG_STATE_INACTIVE;
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spin_unlock(&tpg->tpg_state_lock);
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iscsit_clear_tpg_np_login_threads(tpg, false);
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if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
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spin_lock(&tpg->tpg_state_lock);
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tpg->tpg_state = old_state;
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spin_unlock(&tpg->tpg_state_lock);
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pr_err("Unable to disable iSCSI Target Portal Group:"
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" %hu while active sessions exist, and force=0\n",
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tpg->tpgt);
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return -EPERM;
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}
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tiqn = tpg->tpg_tiqn;
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if (!tiqn || (tpg == iscsit_global->discovery_tpg))
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return 0;
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spin_lock(&tiqn->tiqn_tpg_lock);
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tiqn->tiqn_active_tpgs--;
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pr_debug("iSCSI_TPG[%hu] - Disabled iSCSI Target Portal Group\n",
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tpg->tpgt);
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return 0;
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}
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struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(
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struct iscsi_session *sess)
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{
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struct se_session *se_sess = sess->se_sess;
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struct se_node_acl *se_nacl = se_sess->se_node_acl;
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struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl,
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se_node_acl);
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return &acl->node_attrib;
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}
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struct iscsi_tpg_np *iscsit_tpg_locate_child_np(
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struct iscsi_tpg_np *tpg_np,
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int network_transport)
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{
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struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
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spin_lock(&tpg_np->tpg_np_parent_lock);
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list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
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&tpg_np->tpg_np_parent_list, tpg_np_child_list) {
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if (tpg_np_child->tpg_np->np_network_transport ==
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network_transport) {
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spin_unlock(&tpg_np->tpg_np_parent_lock);
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return tpg_np_child;
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}
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}
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spin_unlock(&tpg_np->tpg_np_parent_lock);
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return NULL;
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}
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static bool iscsit_tpg_check_network_portal(
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struct iscsi_tiqn *tiqn,
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struct sockaddr_storage *sockaddr,
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int network_transport)
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{
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struct iscsi_portal_group *tpg;
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struct iscsi_tpg_np *tpg_np;
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struct iscsi_np *np;
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bool match = false;
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spin_lock(&tiqn->tiqn_tpg_lock);
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list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
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spin_lock(&tpg->tpg_np_lock);
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list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
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np = tpg_np->tpg_np;
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match = iscsit_check_np_match(sockaddr, np,
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network_transport);
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if (match)
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break;
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}
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spin_unlock(&tpg->tpg_np_lock);
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}
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spin_unlock(&tiqn->tiqn_tpg_lock);
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return match;
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}
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struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
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struct iscsi_portal_group *tpg,
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struct sockaddr_storage *sockaddr,
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struct iscsi_tpg_np *tpg_np_parent,
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int network_transport)
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{
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struct iscsi_np *np;
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struct iscsi_tpg_np *tpg_np;
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if (!tpg_np_parent) {
|
|
if (iscsit_tpg_check_network_portal(tpg->tpg_tiqn, sockaddr,
|
|
network_transport)) {
|
|
pr_err("Network Portal: %pISc already exists on a"
|
|
" different TPG on %s\n", sockaddr,
|
|
tpg->tpg_tiqn->tiqn);
|
|
return ERR_PTR(-EEXIST);
|
|
}
|
|
}
|
|
|
|
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, 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);
|
|
init_completion(&tpg_np->tpg_np_comp);
|
|
kref_init(&tpg_np->tpg_np_kref);
|
|
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: %pISpc,%hu on %s\n",
|
|
tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt,
|
|
np->np_transport->name);
|
|
|
|
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, true);
|
|
|
|
pr_debug("CORE[%s] - Removed Network Portal: %pISpc,%hu on %s\n",
|
|
tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt,
|
|
np->np_transport->name);
|
|
|
|
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_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 -EINVAL;
|
|
}
|
|
|
|
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");
|
|
|
|
if (flag == 1 && a->cache_dynamic_acls == 0) {
|
|
pr_debug("Explicitly setting cache_dynamic_acls=1 when "
|
|
"generate_node_acls=1\n");
|
|
a->cache_dynamic_acls = 1;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (a->generate_node_acls == 1 && flag == 0) {
|
|
pr_debug("Skipping cache_dynamic_acls=0 when"
|
|
" generate_node_acls=1\n");
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int iscsit_ta_demo_mode_discovery(
|
|
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_discovery = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - Demo Mode Discovery bit:"
|
|
" %s\n", tpg->tpgt, (a->demo_mode_discovery) ?
|
|
"ON" : "OFF");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_default_erl(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 default_erl)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if ((default_erl != 0) && (default_erl != 1) && (default_erl != 2)) {
|
|
pr_err("Illegal value for default_erl: %u\n", default_erl);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->default_erl = default_erl;
|
|
pr_debug("iSCSI_TPG[%hu] - DefaultERL: %u\n", tpg->tpgt, a->default_erl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_t10_pi(
|
|
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->t10_pi = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - T10 Protection information bit:"
|
|
" %s\n", tpg->tpgt, (a->t10_pi) ?
|
|
"ON" : "OFF");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_fabric_prot_type(
|
|
struct iscsi_portal_group *tpg,
|
|
u32 prot_type)
|
|
{
|
|
struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
|
|
|
|
if ((prot_type != 0) && (prot_type != 1) && (prot_type != 3)) {
|
|
pr_err("Illegal value for fabric_prot_type: %u\n", prot_type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
a->fabric_prot_type = prot_type;
|
|
pr_debug("iSCSI_TPG[%hu] - T10 Fabric Protection Type: %u\n",
|
|
tpg->tpgt, prot_type);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_tpg_enabled_sendtargets(
|
|
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->tpg_enabled_sendtargets = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - TPG enabled bit required for SendTargets:"
|
|
" %s\n", tpg->tpgt, (a->tpg_enabled_sendtargets) ? "ON" : "OFF");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsit_ta_login_keys_workaround(
|
|
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->login_keys_workaround = flag;
|
|
pr_debug("iSCSI_TPG[%hu] - TPG enabled bit for login keys workaround: %s ",
|
|
tpg->tpgt, (a->login_keys_workaround) ? "ON" : "OFF");
|
|
|
|
return 0;
|
|
}
|