1600 lines
46 KiB
C
1600 lines
46 KiB
C
/*******************************************************************************
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* This file contains the configfs implementation for iSCSI Target mode
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* from the LIO-Target Project.
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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/configfs.h>
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#include <linux/ctype.h>
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#include <linux/export.h>
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#include <linux/inet.h>
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#include <linux/module.h>
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#include <net/ipv6.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_transport.h>
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#include <target/iscsi/iscsi_target_core.h>
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#include "iscsi_target_parameters.h"
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#include "iscsi_target_device.h"
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#include "iscsi_target_erl0.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 <target/iscsi/iscsi_target_stat.h>
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/* Start items for lio_target_portal_cit */
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static inline struct iscsi_tpg_np *to_iscsi_tpg_np(struct config_item *item)
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{
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return container_of(to_tpg_np(item), struct iscsi_tpg_np, se_tpg_np);
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}
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static ssize_t lio_target_np_driver_show(struct config_item *item, char *page,
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enum iscsit_transport_type type)
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{
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struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
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struct iscsi_tpg_np *tpg_np_new;
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ssize_t rb;
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tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
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if (tpg_np_new)
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rb = sprintf(page, "1\n");
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else
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rb = sprintf(page, "0\n");
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return rb;
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}
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static ssize_t lio_target_np_driver_store(struct config_item *item,
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const char *page, size_t count, enum iscsit_transport_type type,
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const char *mod_name)
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{
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struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
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struct iscsi_np *np;
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struct iscsi_portal_group *tpg;
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struct iscsi_tpg_np *tpg_np_new = NULL;
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u32 op;
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int rc;
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rc = kstrtou32(page, 0, &op);
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if (rc)
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return rc;
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if ((op != 1) && (op != 0)) {
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pr_err("Illegal value for tpg_enable: %u\n", op);
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return -EINVAL;
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}
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np = tpg_np->tpg_np;
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if (!np) {
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pr_err("Unable to locate struct iscsi_np from"
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" struct iscsi_tpg_np\n");
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return -EINVAL;
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}
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tpg = tpg_np->tpg;
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if (iscsit_get_tpg(tpg) < 0)
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return -EINVAL;
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if (op) {
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if (strlen(mod_name)) {
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rc = request_module(mod_name);
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if (rc != 0) {
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pr_warn("Unable to request_module for %s\n",
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mod_name);
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rc = 0;
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}
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}
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tpg_np_new = iscsit_tpg_add_network_portal(tpg,
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&np->np_sockaddr, tpg_np, type);
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if (IS_ERR(tpg_np_new)) {
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rc = PTR_ERR(tpg_np_new);
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goto out;
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}
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} else {
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tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
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if (tpg_np_new) {
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rc = iscsit_tpg_del_network_portal(tpg, tpg_np_new);
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if (rc < 0)
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goto out;
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}
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}
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iscsit_put_tpg(tpg);
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return count;
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out:
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iscsit_put_tpg(tpg);
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return rc;
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}
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static ssize_t lio_target_np_iser_show(struct config_item *item, char *page)
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{
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return lio_target_np_driver_show(item, page, ISCSI_INFINIBAND);
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}
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static ssize_t lio_target_np_iser_store(struct config_item *item,
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const char *page, size_t count)
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{
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return lio_target_np_driver_store(item, page, count,
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ISCSI_INFINIBAND, "ib_isert");
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}
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CONFIGFS_ATTR(lio_target_np_, iser);
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static ssize_t lio_target_np_cxgbit_show(struct config_item *item, char *page)
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{
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return lio_target_np_driver_show(item, page, ISCSI_CXGBIT);
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}
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static ssize_t lio_target_np_cxgbit_store(struct config_item *item,
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const char *page, size_t count)
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{
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return lio_target_np_driver_store(item, page, count,
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ISCSI_CXGBIT, "cxgbit");
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}
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CONFIGFS_ATTR(lio_target_np_, cxgbit);
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static struct configfs_attribute *lio_target_portal_attrs[] = {
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&lio_target_np_attr_iser,
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&lio_target_np_attr_cxgbit,
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NULL,
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};
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/* Stop items for lio_target_portal_cit */
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/* Start items for lio_target_np_cit */
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#define MAX_PORTAL_LEN 256
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static struct se_tpg_np *lio_target_call_addnptotpg(
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struct se_portal_group *se_tpg,
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struct config_group *group,
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const char *name)
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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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char *str, *str2, *ip_str, *port_str;
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struct sockaddr_storage sockaddr = { };
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int ret;
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char buf[MAX_PORTAL_LEN + 1];
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if (strlen(name) > MAX_PORTAL_LEN) {
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pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
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(int)strlen(name), MAX_PORTAL_LEN);
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return ERR_PTR(-EOVERFLOW);
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}
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memset(buf, 0, MAX_PORTAL_LEN + 1);
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snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
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str = strstr(buf, "[");
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if (str) {
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str2 = strstr(str, "]");
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if (!str2) {
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pr_err("Unable to locate trailing \"]\""
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" in IPv6 iSCSI network portal address\n");
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return ERR_PTR(-EINVAL);
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}
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ip_str = str + 1; /* Skip over leading "[" */
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*str2 = '\0'; /* Terminate the unbracketed IPv6 address */
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str2++; /* Skip over the \0 */
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port_str = strstr(str2, ":");
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if (!port_str) {
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pr_err("Unable to locate \":port\""
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" in IPv6 iSCSI network portal address\n");
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return ERR_PTR(-EINVAL);
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}
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*port_str = '\0'; /* Terminate string for IP */
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port_str++; /* Skip over ":" */
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} else {
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ip_str = &buf[0];
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port_str = strstr(ip_str, ":");
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if (!port_str) {
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pr_err("Unable to locate \":port\""
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" in IPv4 iSCSI network portal address\n");
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return ERR_PTR(-EINVAL);
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}
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*port_str = '\0'; /* Terminate string for IP */
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port_str++; /* Skip over ":" */
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}
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ret = inet_pton_with_scope(&init_net, AF_UNSPEC, ip_str,
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port_str, &sockaddr);
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if (ret) {
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pr_err("malformed ip/port passed: %s\n", name);
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return ERR_PTR(ret);
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}
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tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
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ret = iscsit_get_tpg(tpg);
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if (ret < 0)
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return ERR_PTR(-EINVAL);
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pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
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" PORTAL: %s\n",
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config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
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tpg->tpgt, name);
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/*
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* Assume ISCSI_TCP by default. Other network portals for other
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* iSCSI fabrics:
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*
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* Traditional iSCSI over SCTP (initial support)
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* iSER/TCP (TODO, hardware available)
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* iSER/SCTP (TODO, software emulation with osc-iwarp)
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* iSER/IB (TODO, hardware available)
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*
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* can be enabled with attributes under
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* sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
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*
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*/
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tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, NULL,
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ISCSI_TCP);
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if (IS_ERR(tpg_np)) {
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iscsit_put_tpg(tpg);
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return ERR_CAST(tpg_np);
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}
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pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
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iscsit_put_tpg(tpg);
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return &tpg_np->se_tpg_np;
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}
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static void lio_target_call_delnpfromtpg(
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struct se_tpg_np *se_tpg_np)
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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 se_portal_group *se_tpg;
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int ret;
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tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
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tpg = tpg_np->tpg;
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ret = iscsit_get_tpg(tpg);
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if (ret < 0)
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return;
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se_tpg = &tpg->tpg_se_tpg;
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pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
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" PORTAL: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
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tpg->tpgt, &tpg_np->tpg_np->np_sockaddr);
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ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
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if (ret < 0)
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goto out;
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pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
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out:
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iscsit_put_tpg(tpg);
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}
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/* End items for lio_target_np_cit */
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/* Start items for lio_target_nacl_attrib_cit */
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#define ISCSI_NACL_ATTR(name) \
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static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\
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char *page) \
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{ \
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struct se_node_acl *se_nacl = attrib_to_nacl(item); \
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struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
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se_node_acl); \
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\
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return sprintf(page, "%u\n", nacl->node_attrib.name); \
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} \
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\
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static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\
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const char *page, size_t count) \
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{ \
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struct se_node_acl *se_nacl = attrib_to_nacl(item); \
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struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
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se_node_acl); \
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u32 val; \
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int ret; \
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\
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ret = kstrtou32(page, 0, &val); \
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if (ret) \
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return ret; \
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ret = iscsit_na_##name(nacl, val); \
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if (ret < 0) \
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return ret; \
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\
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return count; \
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} \
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\
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CONFIGFS_ATTR(iscsi_nacl_attrib_, name)
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ISCSI_NACL_ATTR(dataout_timeout);
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ISCSI_NACL_ATTR(dataout_timeout_retries);
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ISCSI_NACL_ATTR(default_erl);
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ISCSI_NACL_ATTR(nopin_timeout);
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ISCSI_NACL_ATTR(nopin_response_timeout);
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ISCSI_NACL_ATTR(random_datain_pdu_offsets);
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ISCSI_NACL_ATTR(random_datain_seq_offsets);
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ISCSI_NACL_ATTR(random_r2t_offsets);
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static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
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&iscsi_nacl_attrib_attr_dataout_timeout,
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&iscsi_nacl_attrib_attr_dataout_timeout_retries,
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&iscsi_nacl_attrib_attr_default_erl,
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&iscsi_nacl_attrib_attr_nopin_timeout,
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&iscsi_nacl_attrib_attr_nopin_response_timeout,
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&iscsi_nacl_attrib_attr_random_datain_pdu_offsets,
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&iscsi_nacl_attrib_attr_random_datain_seq_offsets,
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&iscsi_nacl_attrib_attr_random_r2t_offsets,
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NULL,
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};
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/* End items for lio_target_nacl_attrib_cit */
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/* Start items for lio_target_nacl_auth_cit */
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#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
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static ssize_t __iscsi_##prefix##_##name##_show( \
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struct iscsi_node_acl *nacl, \
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char *page) \
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{ \
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struct iscsi_node_auth *auth = &nacl->node_auth; \
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\
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if (!capable(CAP_SYS_ADMIN)) \
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return -EPERM; \
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return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
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} \
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\
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static ssize_t __iscsi_##prefix##_##name##_store( \
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struct iscsi_node_acl *nacl, \
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const char *page, \
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size_t count) \
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{ \
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struct iscsi_node_auth *auth = &nacl->node_auth; \
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\
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if (!capable(CAP_SYS_ADMIN)) \
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return -EPERM; \
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if (count >= sizeof(auth->name)) \
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return -EINVAL; \
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snprintf(auth->name, sizeof(auth->name), "%s", page); \
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if (!strncmp("NULL", auth->name, 4)) \
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auth->naf_flags &= ~flags; \
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else \
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auth->naf_flags |= flags; \
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\
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if ((auth->naf_flags & NAF_USERID_IN_SET) && \
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(auth->naf_flags & NAF_PASSWORD_IN_SET)) \
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auth->authenticate_target = 1; \
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else \
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auth->authenticate_target = 0; \
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\
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return count; \
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}
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#define DEF_NACL_AUTH_STR(name, flags) \
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__DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
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static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
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char *page) \
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{ \
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struct se_node_acl *nacl = auth_to_nacl(item); \
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return __iscsi_nacl_auth_##name##_show(container_of(nacl, \
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struct iscsi_node_acl, se_node_acl), page); \
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} \
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static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \
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const char *page, size_t count) \
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{ \
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struct se_node_acl *nacl = auth_to_nacl(item); \
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return __iscsi_nacl_auth_##name##_store(container_of(nacl, \
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struct iscsi_node_acl, se_node_acl), page, count); \
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} \
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\
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CONFIGFS_ATTR(iscsi_nacl_auth_, name)
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/*
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* One-way authentication userid
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*/
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DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
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DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
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DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
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DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
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#define __DEF_NACL_AUTH_INT(prefix, name) \
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static ssize_t __iscsi_##prefix##_##name##_show( \
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struct iscsi_node_acl *nacl, \
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char *page) \
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{ \
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struct iscsi_node_auth *auth = &nacl->node_auth; \
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\
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if (!capable(CAP_SYS_ADMIN)) \
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return -EPERM; \
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\
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return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
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}
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#define DEF_NACL_AUTH_INT(name) \
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__DEF_NACL_AUTH_INT(nacl_auth, name) \
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static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
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char *page) \
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{ \
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struct se_node_acl *nacl = auth_to_nacl(item); \
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return __iscsi_nacl_auth_##name##_show(container_of(nacl, \
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struct iscsi_node_acl, se_node_acl), page); \
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} \
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\
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CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name)
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DEF_NACL_AUTH_INT(authenticate_target);
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static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
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&iscsi_nacl_auth_attr_userid,
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&iscsi_nacl_auth_attr_password,
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&iscsi_nacl_auth_attr_authenticate_target,
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&iscsi_nacl_auth_attr_userid_mutual,
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&iscsi_nacl_auth_attr_password_mutual,
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NULL,
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};
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/* End items for lio_target_nacl_auth_cit */
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/* Start items for lio_target_nacl_param_cit */
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#define ISCSI_NACL_PARAM(name) \
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static ssize_t iscsi_nacl_param_##name##_show(struct config_item *item, \
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char *page) \
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{ \
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struct se_node_acl *se_nacl = param_to_nacl(item); \
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struct iscsi_session *sess; \
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struct se_session *se_sess; \
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ssize_t rb; \
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\
|
|
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;
|
|
}
|
|
|
|
/* End items for lio_target_acl_cit */
|
|
|
|
/* Start items for lio_target_tpg_attrib_cit */
|
|
|
|
#define DEF_TPG_ATTRIB(name) \
|
|
\
|
|
static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item, \
|
|
char *page) \
|
|
{ \
|
|
struct se_portal_group *se_tpg = attrib_to_tpg(item); \
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg, \
|
|
struct iscsi_portal_group, tpg_se_tpg); \
|
|
ssize_t rb; \
|
|
\
|
|
if (iscsit_get_tpg(tpg) < 0) \
|
|
return -EINVAL; \
|
|
\
|
|
rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \
|
|
iscsit_put_tpg(tpg); \
|
|
return rb; \
|
|
} \
|
|
\
|
|
static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\
|
|
const char *page, size_t count) \
|
|
{ \
|
|
struct se_portal_group *se_tpg = attrib_to_tpg(item); \
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg, \
|
|
struct iscsi_portal_group, tpg_se_tpg); \
|
|
u32 val; \
|
|
int ret; \
|
|
\
|
|
if (iscsit_get_tpg(tpg) < 0) \
|
|
return -EINVAL; \
|
|
\
|
|
ret = kstrtou32(page, 0, &val); \
|
|
if (ret) \
|
|
goto out; \
|
|
ret = iscsit_ta_##name(tpg, val); \
|
|
if (ret < 0) \
|
|
goto out; \
|
|
\
|
|
iscsit_put_tpg(tpg); \
|
|
return count; \
|
|
out: \
|
|
iscsit_put_tpg(tpg); \
|
|
return ret; \
|
|
} \
|
|
CONFIGFS_ATTR(iscsi_tpg_attrib_, name)
|
|
|
|
DEF_TPG_ATTRIB(authentication);
|
|
DEF_TPG_ATTRIB(login_timeout);
|
|
DEF_TPG_ATTRIB(netif_timeout);
|
|
DEF_TPG_ATTRIB(generate_node_acls);
|
|
DEF_TPG_ATTRIB(default_cmdsn_depth);
|
|
DEF_TPG_ATTRIB(cache_dynamic_acls);
|
|
DEF_TPG_ATTRIB(demo_mode_write_protect);
|
|
DEF_TPG_ATTRIB(prod_mode_write_protect);
|
|
DEF_TPG_ATTRIB(demo_mode_discovery);
|
|
DEF_TPG_ATTRIB(default_erl);
|
|
DEF_TPG_ATTRIB(t10_pi);
|
|
DEF_TPG_ATTRIB(fabric_prot_type);
|
|
DEF_TPG_ATTRIB(tpg_enabled_sendtargets);
|
|
DEF_TPG_ATTRIB(login_keys_workaround);
|
|
|
|
static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
|
|
&iscsi_tpg_attrib_attr_authentication,
|
|
&iscsi_tpg_attrib_attr_login_timeout,
|
|
&iscsi_tpg_attrib_attr_netif_timeout,
|
|
&iscsi_tpg_attrib_attr_generate_node_acls,
|
|
&iscsi_tpg_attrib_attr_default_cmdsn_depth,
|
|
&iscsi_tpg_attrib_attr_cache_dynamic_acls,
|
|
&iscsi_tpg_attrib_attr_demo_mode_write_protect,
|
|
&iscsi_tpg_attrib_attr_prod_mode_write_protect,
|
|
&iscsi_tpg_attrib_attr_demo_mode_discovery,
|
|
&iscsi_tpg_attrib_attr_default_erl,
|
|
&iscsi_tpg_attrib_attr_t10_pi,
|
|
&iscsi_tpg_attrib_attr_fabric_prot_type,
|
|
&iscsi_tpg_attrib_attr_tpg_enabled_sendtargets,
|
|
&iscsi_tpg_attrib_attr_login_keys_workaround,
|
|
NULL,
|
|
};
|
|
|
|
/* End items for lio_target_tpg_attrib_cit */
|
|
|
|
/* Start items for lio_target_tpg_auth_cit */
|
|
|
|
#define __DEF_TPG_AUTH_STR(prefix, name, flags) \
|
|
static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \
|
|
char *page) \
|
|
{ \
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg, \
|
|
struct iscsi_portal_group, tpg_se_tpg); \
|
|
struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
|
|
\
|
|
if (!capable(CAP_SYS_ADMIN)) \
|
|
return -EPERM; \
|
|
\
|
|
return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
|
|
} \
|
|
\
|
|
static ssize_t __iscsi_##prefix##_##name##_store(struct se_portal_group *se_tpg,\
|
|
const char *page, size_t count) \
|
|
{ \
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg, \
|
|
struct iscsi_portal_group, tpg_se_tpg); \
|
|
struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
|
|
\
|
|
if (!capable(CAP_SYS_ADMIN)) \
|
|
return -EPERM; \
|
|
\
|
|
snprintf(auth->name, sizeof(auth->name), "%s", page); \
|
|
if (!(strncmp("NULL", auth->name, 4))) \
|
|
auth->naf_flags &= ~flags; \
|
|
else \
|
|
auth->naf_flags |= flags; \
|
|
\
|
|
if ((auth->naf_flags & NAF_USERID_IN_SET) && \
|
|
(auth->naf_flags & NAF_PASSWORD_IN_SET)) \
|
|
auth->authenticate_target = 1; \
|
|
else \
|
|
auth->authenticate_target = 0; \
|
|
\
|
|
return count; \
|
|
}
|
|
|
|
#define DEF_TPG_AUTH_STR(name, flags) \
|
|
__DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
|
|
static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \
|
|
char *page) \
|
|
{ \
|
|
return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \
|
|
} \
|
|
\
|
|
static ssize_t iscsi_tpg_auth_##name##_store(struct config_item *item, \
|
|
const char *page, size_t count) \
|
|
{ \
|
|
return __iscsi_tpg_auth_##name##_store(auth_to_tpg(item), page, count); \
|
|
} \
|
|
\
|
|
CONFIGFS_ATTR(iscsi_tpg_auth_, name);
|
|
|
|
|
|
DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
|
|
DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
|
|
DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
|
|
DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
|
|
|
|
#define __DEF_TPG_AUTH_INT(prefix, name) \
|
|
static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \
|
|
char *page) \
|
|
{ \
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg, \
|
|
struct iscsi_portal_group, tpg_se_tpg); \
|
|
struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
|
|
\
|
|
if (!capable(CAP_SYS_ADMIN)) \
|
|
return -EPERM; \
|
|
\
|
|
return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
|
|
}
|
|
|
|
#define DEF_TPG_AUTH_INT(name) \
|
|
__DEF_TPG_AUTH_INT(tpg_auth, name) \
|
|
static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \
|
|
char *page) \
|
|
{ \
|
|
return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \
|
|
} \
|
|
CONFIGFS_ATTR_RO(iscsi_tpg_auth_, name);
|
|
|
|
DEF_TPG_AUTH_INT(authenticate_target);
|
|
|
|
static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
|
|
&iscsi_tpg_auth_attr_userid,
|
|
&iscsi_tpg_auth_attr_password,
|
|
&iscsi_tpg_auth_attr_authenticate_target,
|
|
&iscsi_tpg_auth_attr_userid_mutual,
|
|
&iscsi_tpg_auth_attr_password_mutual,
|
|
NULL,
|
|
};
|
|
|
|
/* End items for lio_target_tpg_auth_cit */
|
|
|
|
/* Start items for lio_target_tpg_param_cit */
|
|
|
|
#define DEF_TPG_PARAM(name) \
|
|
static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \
|
|
char *page) \
|
|
{ \
|
|
struct se_portal_group *se_tpg = param_to_tpg(item); \
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg, \
|
|
struct iscsi_portal_group, tpg_se_tpg); \
|
|
struct iscsi_param *param; \
|
|
ssize_t rb; \
|
|
\
|
|
if (iscsit_get_tpg(tpg) < 0) \
|
|
return -EINVAL; \
|
|
\
|
|
param = iscsi_find_param_from_key(__stringify(name), \
|
|
tpg->param_list); \
|
|
if (!param) { \
|
|
iscsit_put_tpg(tpg); \
|
|
return -EINVAL; \
|
|
} \
|
|
rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
|
|
\
|
|
iscsit_put_tpg(tpg); \
|
|
return rb; \
|
|
} \
|
|
static ssize_t iscsi_tpg_param_##name##_store(struct config_item *item, \
|
|
const char *page, size_t count) \
|
|
{ \
|
|
struct se_portal_group *se_tpg = param_to_tpg(item); \
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg, \
|
|
struct iscsi_portal_group, tpg_se_tpg); \
|
|
char *buf; \
|
|
int ret, len; \
|
|
\
|
|
buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
|
|
if (!buf) \
|
|
return -ENOMEM; \
|
|
len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
|
|
if (isspace(buf[len-1])) \
|
|
buf[len-1] = '\0'; /* Kill newline */ \
|
|
\
|
|
if (iscsit_get_tpg(tpg) < 0) { \
|
|
kfree(buf); \
|
|
return -EINVAL; \
|
|
} \
|
|
\
|
|
ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
|
|
if (ret < 0) \
|
|
goto out; \
|
|
\
|
|
kfree(buf); \
|
|
iscsit_put_tpg(tpg); \
|
|
return count; \
|
|
out: \
|
|
kfree(buf); \
|
|
iscsit_put_tpg(tpg); \
|
|
return -EINVAL; \
|
|
} \
|
|
CONFIGFS_ATTR(iscsi_tpg_param_, name)
|
|
|
|
DEF_TPG_PARAM(AuthMethod);
|
|
DEF_TPG_PARAM(HeaderDigest);
|
|
DEF_TPG_PARAM(DataDigest);
|
|
DEF_TPG_PARAM(MaxConnections);
|
|
DEF_TPG_PARAM(TargetAlias);
|
|
DEF_TPG_PARAM(InitialR2T);
|
|
DEF_TPG_PARAM(ImmediateData);
|
|
DEF_TPG_PARAM(MaxRecvDataSegmentLength);
|
|
DEF_TPG_PARAM(MaxXmitDataSegmentLength);
|
|
DEF_TPG_PARAM(MaxBurstLength);
|
|
DEF_TPG_PARAM(FirstBurstLength);
|
|
DEF_TPG_PARAM(DefaultTime2Wait);
|
|
DEF_TPG_PARAM(DefaultTime2Retain);
|
|
DEF_TPG_PARAM(MaxOutstandingR2T);
|
|
DEF_TPG_PARAM(DataPDUInOrder);
|
|
DEF_TPG_PARAM(DataSequenceInOrder);
|
|
DEF_TPG_PARAM(ErrorRecoveryLevel);
|
|
DEF_TPG_PARAM(IFMarker);
|
|
DEF_TPG_PARAM(OFMarker);
|
|
DEF_TPG_PARAM(IFMarkInt);
|
|
DEF_TPG_PARAM(OFMarkInt);
|
|
|
|
static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
|
|
&iscsi_tpg_param_attr_AuthMethod,
|
|
&iscsi_tpg_param_attr_HeaderDigest,
|
|
&iscsi_tpg_param_attr_DataDigest,
|
|
&iscsi_tpg_param_attr_MaxConnections,
|
|
&iscsi_tpg_param_attr_TargetAlias,
|
|
&iscsi_tpg_param_attr_InitialR2T,
|
|
&iscsi_tpg_param_attr_ImmediateData,
|
|
&iscsi_tpg_param_attr_MaxRecvDataSegmentLength,
|
|
&iscsi_tpg_param_attr_MaxXmitDataSegmentLength,
|
|
&iscsi_tpg_param_attr_MaxBurstLength,
|
|
&iscsi_tpg_param_attr_FirstBurstLength,
|
|
&iscsi_tpg_param_attr_DefaultTime2Wait,
|
|
&iscsi_tpg_param_attr_DefaultTime2Retain,
|
|
&iscsi_tpg_param_attr_MaxOutstandingR2T,
|
|
&iscsi_tpg_param_attr_DataPDUInOrder,
|
|
&iscsi_tpg_param_attr_DataSequenceInOrder,
|
|
&iscsi_tpg_param_attr_ErrorRecoveryLevel,
|
|
&iscsi_tpg_param_attr_IFMarker,
|
|
&iscsi_tpg_param_attr_OFMarker,
|
|
&iscsi_tpg_param_attr_IFMarkInt,
|
|
&iscsi_tpg_param_attr_OFMarkInt,
|
|
NULL,
|
|
};
|
|
|
|
/* End items for lio_target_tpg_param_cit */
|
|
|
|
/* Start items for lio_target_tpg_cit */
|
|
|
|
static ssize_t lio_target_tpg_enable_show(struct config_item *item, char *page)
|
|
{
|
|
struct se_portal_group *se_tpg = to_tpg(item);
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg,
|
|
struct iscsi_portal_group, tpg_se_tpg);
|
|
ssize_t len;
|
|
|
|
spin_lock(&tpg->tpg_state_lock);
|
|
len = sprintf(page, "%d\n",
|
|
(tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
|
|
spin_unlock(&tpg->tpg_state_lock);
|
|
|
|
return len;
|
|
}
|
|
|
|
static ssize_t lio_target_tpg_enable_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct se_portal_group *se_tpg = to_tpg(item);
|
|
struct iscsi_portal_group *tpg = container_of(se_tpg,
|
|
struct iscsi_portal_group, tpg_se_tpg);
|
|
u32 op;
|
|
int ret;
|
|
|
|
ret = kstrtou32(page, 0, &op);
|
|
if (ret)
|
|
return ret;
|
|
if ((op != 1) && (op != 0)) {
|
|
pr_err("Illegal value for tpg_enable: %u\n", op);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = iscsit_get_tpg(tpg);
|
|
if (ret < 0)
|
|
return -EINVAL;
|
|
|
|
if (op) {
|
|
ret = iscsit_tpg_enable_portal_group(tpg);
|
|
if (ret < 0)
|
|
goto out;
|
|
} else {
|
|
/*
|
|
* iscsit_tpg_disable_portal_group() assumes force=1
|
|
*/
|
|
ret = iscsit_tpg_disable_portal_group(tpg, 1);
|
|
if (ret < 0)
|
|
goto out;
|
|
}
|
|
|
|
iscsit_put_tpg(tpg);
|
|
return count;
|
|
out:
|
|
iscsit_put_tpg(tpg);
|
|
return -EINVAL;
|
|
}
|
|
|
|
|
|
static ssize_t lio_target_tpg_dynamic_sessions_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return target_show_dynamic_sessions(to_tpg(item), page);
|
|
}
|
|
|
|
CONFIGFS_ATTR(lio_target_tpg_, enable);
|
|
CONFIGFS_ATTR_RO(lio_target_tpg_, dynamic_sessions);
|
|
|
|
static struct configfs_attribute *lio_target_tpg_attrs[] = {
|
|
&lio_target_tpg_attr_enable,
|
|
&lio_target_tpg_attr_dynamic_sessions,
|
|
NULL,
|
|
};
|
|
|
|
/* End items for lio_target_tpg_cit */
|
|
|
|
/* Start items for lio_target_tiqn_cit */
|
|
|
|
static struct se_portal_group *lio_target_tiqn_addtpg(struct se_wwn *wwn,
|
|
const char *name)
|
|
{
|
|
struct iscsi_portal_group *tpg;
|
|
struct iscsi_tiqn *tiqn;
|
|
char *tpgt_str;
|
|
int ret;
|
|
u16 tpgt;
|
|
|
|
tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
|
|
/*
|
|
* Only tpgt_# directory groups can be created below
|
|
* target/iscsi/iqn.superturodiskarry/
|
|
*/
|
|
tpgt_str = strstr(name, "tpgt_");
|
|
if (!tpgt_str) {
|
|
pr_err("Unable to locate \"tpgt_#\" directory"
|
|
" group\n");
|
|
return NULL;
|
|
}
|
|
tpgt_str += 5; /* Skip ahead of "tpgt_" */
|
|
ret = kstrtou16(tpgt_str, 0, &tpgt);
|
|
if (ret)
|
|
return NULL;
|
|
|
|
tpg = iscsit_alloc_portal_group(tiqn, tpgt);
|
|
if (!tpg)
|
|
return NULL;
|
|
|
|
ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
|
|
if (ret < 0)
|
|
goto free_out;
|
|
|
|
ret = iscsit_tpg_add_portal_group(tiqn, tpg);
|
|
if (ret != 0)
|
|
goto out;
|
|
|
|
pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
|
|
pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
|
|
name);
|
|
return &tpg->tpg_se_tpg;
|
|
out:
|
|
core_tpg_deregister(&tpg->tpg_se_tpg);
|
|
free_out:
|
|
kfree(tpg);
|
|
return NULL;
|
|
}
|
|
|
|
static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
|
|
{
|
|
struct iscsi_portal_group *tpg;
|
|
struct iscsi_tiqn *tiqn;
|
|
|
|
tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
|
|
tiqn = tpg->tpg_tiqn;
|
|
/*
|
|
* iscsit_tpg_del_portal_group() assumes force=1
|
|
*/
|
|
pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
|
|
iscsit_tpg_del_portal_group(tiqn, tpg, 1);
|
|
}
|
|
|
|
/* End items for lio_target_tiqn_cit */
|
|
|
|
/* Start LIO-Target TIQN struct contig_item lio_target_cit */
|
|
|
|
static ssize_t lio_target_wwn_lio_version_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
|
|
}
|
|
|
|
CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version);
|
|
|
|
static struct configfs_attribute *lio_target_wwn_attrs[] = {
|
|
&lio_target_wwn_attr_lio_version,
|
|
NULL,
|
|
};
|
|
|
|
static struct se_wwn *lio_target_call_coreaddtiqn(
|
|
struct target_fabric_configfs *tf,
|
|
struct config_group *group,
|
|
const char *name)
|
|
{
|
|
struct iscsi_tiqn *tiqn;
|
|
|
|
tiqn = iscsit_add_tiqn((unsigned char *)name);
|
|
if (IS_ERR(tiqn))
|
|
return ERR_CAST(tiqn);
|
|
|
|
pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
|
|
pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
|
|
" %s\n", name);
|
|
return &tiqn->tiqn_wwn;
|
|
}
|
|
|
|
static void lio_target_add_wwn_groups(struct se_wwn *wwn)
|
|
{
|
|
struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
|
|
|
|
config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
|
|
"iscsi_instance", &iscsi_stat_instance_cit);
|
|
configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_instance_group,
|
|
&tiqn->tiqn_wwn.fabric_stat_group);
|
|
|
|
config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
|
|
"iscsi_sess_err", &iscsi_stat_sess_err_cit);
|
|
configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
|
|
&tiqn->tiqn_wwn.fabric_stat_group);
|
|
|
|
config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
|
|
"iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
|
|
configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
|
|
&tiqn->tiqn_wwn.fabric_stat_group);
|
|
|
|
config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
|
|
"iscsi_login_stats", &iscsi_stat_login_cit);
|
|
configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
|
|
&tiqn->tiqn_wwn.fabric_stat_group);
|
|
|
|
config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
|
|
"iscsi_logout_stats", &iscsi_stat_logout_cit);
|
|
configfs_add_default_group(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
|
|
&tiqn->tiqn_wwn.fabric_stat_group);
|
|
}
|
|
|
|
static void lio_target_call_coredeltiqn(
|
|
struct se_wwn *wwn)
|
|
{
|
|
struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
|
|
|
|
pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
|
|
tiqn->tiqn);
|
|
iscsit_del_tiqn(tiqn);
|
|
}
|
|
|
|
/* End LIO-Target TIQN struct contig_lio_target_cit */
|
|
|
|
/* Start lio_target_discovery_auth_cit */
|
|
|
|
#define DEF_DISC_AUTH_STR(name, flags) \
|
|
__DEF_NACL_AUTH_STR(disc, name, flags) \
|
|
static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \
|
|
{ \
|
|
return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl,\
|
|
page); \
|
|
} \
|
|
static ssize_t iscsi_disc_##name##_store(struct config_item *item, \
|
|
const char *page, size_t count) \
|
|
{ \
|
|
return __iscsi_disc_##name##_store(&iscsit_global->discovery_acl, \
|
|
page, count); \
|
|
\
|
|
} \
|
|
CONFIGFS_ATTR(iscsi_disc_, name)
|
|
|
|
DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
|
|
DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
|
|
DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
|
|
DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
|
|
|
|
#define DEF_DISC_AUTH_INT(name) \
|
|
__DEF_NACL_AUTH_INT(disc, name) \
|
|
static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \
|
|
{ \
|
|
return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl, \
|
|
page); \
|
|
} \
|
|
CONFIGFS_ATTR_RO(iscsi_disc_, name)
|
|
|
|
DEF_DISC_AUTH_INT(authenticate_target);
|
|
|
|
|
|
static ssize_t iscsi_disc_enforce_discovery_auth_show(struct config_item *item,
|
|
char *page)
|
|
{
|
|
struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
|
|
|
|
return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
|
|
}
|
|
|
|
static ssize_t iscsi_disc_enforce_discovery_auth_store(struct config_item *item,
|
|
const char *page, size_t count)
|
|
{
|
|
struct iscsi_param *param;
|
|
struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
|
|
u32 op;
|
|
int err;
|
|
|
|
err = kstrtou32(page, 0, &op);
|
|
if (err)
|
|
return -EINVAL;
|
|
if ((op != 1) && (op != 0)) {
|
|
pr_err("Illegal value for enforce_discovery_auth:"
|
|
" %u\n", op);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!discovery_tpg) {
|
|
pr_err("iscsit_global->discovery_tpg is NULL\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
param = iscsi_find_param_from_key(AUTHMETHOD,
|
|
discovery_tpg->param_list);
|
|
if (!param)
|
|
return -EINVAL;
|
|
|
|
if (op) {
|
|
/*
|
|
* Reset the AuthMethod key to CHAP.
|
|
*/
|
|
if (iscsi_update_param_value(param, CHAP) < 0)
|
|
return -EINVAL;
|
|
|
|
discovery_tpg->tpg_attrib.authentication = 1;
|
|
iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
|
|
pr_debug("LIO-CORE[0] Successfully enabled"
|
|
" authentication enforcement for iSCSI"
|
|
" Discovery TPG\n");
|
|
} else {
|
|
/*
|
|
* Reset the AuthMethod key to CHAP,None
|
|
*/
|
|
if (iscsi_update_param_value(param, "CHAP,None") < 0)
|
|
return -EINVAL;
|
|
|
|
discovery_tpg->tpg_attrib.authentication = 0;
|
|
iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
|
|
pr_debug("LIO-CORE[0] Successfully disabled"
|
|
" authentication enforcement for iSCSI"
|
|
" Discovery TPG\n");
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
CONFIGFS_ATTR(iscsi_disc_, enforce_discovery_auth);
|
|
|
|
static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
|
|
&iscsi_disc_attr_userid,
|
|
&iscsi_disc_attr_password,
|
|
&iscsi_disc_attr_authenticate_target,
|
|
&iscsi_disc_attr_userid_mutual,
|
|
&iscsi_disc_attr_password_mutual,
|
|
&iscsi_disc_attr_enforce_discovery_auth,
|
|
NULL,
|
|
};
|
|
|
|
/* End lio_target_discovery_auth_cit */
|
|
|
|
/* Start functions for target_core_fabric_ops */
|
|
|
|
static char *iscsi_get_fabric_name(void)
|
|
{
|
|
return "iSCSI";
|
|
}
|
|
|
|
static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
|
|
{
|
|
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
|
|
|
|
return cmd->i_state;
|
|
}
|
|
|
|
static u32 lio_sess_get_index(struct se_session *se_sess)
|
|
{
|
|
struct iscsi_session *sess = se_sess->fabric_sess_ptr;
|
|
|
|
return sess->session_index;
|
|
}
|
|
|
|
static u32 lio_sess_get_initiator_sid(
|
|
struct se_session *se_sess,
|
|
unsigned char *buf,
|
|
u32 size)
|
|
{
|
|
struct iscsi_session *sess = se_sess->fabric_sess_ptr;
|
|
/*
|
|
* iSCSI Initiator Session Identifier from RFC-3720.
|
|
*/
|
|
return snprintf(buf, size, "%6phN", sess->isid);
|
|
}
|
|
|
|
static int lio_queue_data_in(struct se_cmd *se_cmd)
|
|
{
|
|
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
|
|
struct iscsi_conn *conn = cmd->conn;
|
|
|
|
cmd->i_state = ISTATE_SEND_DATAIN;
|
|
return conn->conn_transport->iscsit_queue_data_in(conn, cmd);
|
|
}
|
|
|
|
static int lio_write_pending(struct se_cmd *se_cmd)
|
|
{
|
|
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
|
|
struct iscsi_conn *conn = cmd->conn;
|
|
|
|
if (!cmd->immediate_data && !cmd->unsolicited_data)
|
|
return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lio_write_pending_status(struct se_cmd *se_cmd)
|
|
{
|
|
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
|
|
int ret;
|
|
|
|
spin_lock_bh(&cmd->istate_lock);
|
|
ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
|
|
spin_unlock_bh(&cmd->istate_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int lio_queue_status(struct se_cmd *se_cmd)
|
|
{
|
|
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
|
|
struct iscsi_conn *conn = cmd->conn;
|
|
|
|
cmd->i_state = ISTATE_SEND_STATUS;
|
|
|
|
if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
|
|
return iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
|
|
}
|
|
return conn->conn_transport->iscsit_queue_status(conn, cmd);
|
|
}
|
|
|
|
static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
|
|
{
|
|
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
|
|
|
|
cmd->i_state = ISTATE_SEND_TASKMGTRSP;
|
|
iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
|
|
}
|
|
|
|
static void lio_aborted_task(struct se_cmd *se_cmd)
|
|
{
|
|
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
|
|
|
|
cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
|
|
}
|
|
|
|
static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg)
|
|
{
|
|
return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
|
|
}
|
|
|
|
static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
|
|
{
|
|
return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn;
|
|
}
|
|
|
|
static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
|
|
{
|
|
return iscsi_tpg(se_tpg)->tpgt;
|
|
}
|
|
|
|
static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
|
|
{
|
|
return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth;
|
|
}
|
|
|
|
static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
|
|
{
|
|
return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls;
|
|
}
|
|
|
|
static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
|
|
{
|
|
return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls;
|
|
}
|
|
|
|
static int lio_tpg_check_demo_mode_write_protect(
|
|
struct se_portal_group *se_tpg)
|
|
{
|
|
return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect;
|
|
}
|
|
|
|
static int lio_tpg_check_prod_mode_write_protect(
|
|
struct se_portal_group *se_tpg)
|
|
{
|
|
return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect;
|
|
}
|
|
|
|
static int lio_tpg_check_prot_fabric_only(
|
|
struct se_portal_group *se_tpg)
|
|
{
|
|
/*
|
|
* Only report fabric_prot_type if t10_pi has also been enabled
|
|
* for incoming ib_isert sessions.
|
|
*/
|
|
if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi)
|
|
return 0;
|
|
return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type;
|
|
}
|
|
|
|
/*
|
|
* This function calls iscsit_inc_session_usage_count() on the
|
|
* struct iscsi_session in question.
|
|
*/
|
|
static void lio_tpg_close_session(struct se_session *se_sess)
|
|
{
|
|
struct iscsi_session *sess = se_sess->fabric_sess_ptr;
|
|
struct se_portal_group *se_tpg = &sess->tpg->tpg_se_tpg;
|
|
|
|
spin_lock_bh(&se_tpg->session_lock);
|
|
spin_lock(&sess->conn_lock);
|
|
if (atomic_read(&sess->session_fall_back_to_erl0) ||
|
|
atomic_read(&sess->session_logout) ||
|
|
(sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
|
|
spin_unlock(&sess->conn_lock);
|
|
spin_unlock_bh(&se_tpg->session_lock);
|
|
return;
|
|
}
|
|
atomic_set(&sess->session_reinstatement, 1);
|
|
atomic_set(&sess->session_fall_back_to_erl0, 1);
|
|
spin_unlock(&sess->conn_lock);
|
|
|
|
iscsit_stop_time2retain_timer(sess);
|
|
spin_unlock_bh(&se_tpg->session_lock);
|
|
|
|
iscsit_stop_session(sess, 1, 1);
|
|
iscsit_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,
|
|
.close_session = lio_tpg_close_session,
|
|
.sess_get_index = lio_sess_get_index,
|
|
.sess_get_initiator_sid = lio_sess_get_initiator_sid,
|
|
.write_pending = lio_write_pending,
|
|
.write_pending_status = lio_write_pending_status,
|
|
.set_default_node_attributes = lio_set_default_node_attributes,
|
|
.get_cmd_state = iscsi_get_cmd_state,
|
|
.queue_data_in = lio_queue_data_in,
|
|
.queue_status = lio_queue_status,
|
|
.queue_tm_rsp = lio_queue_tm_rsp,
|
|
.aborted_task = lio_aborted_task,
|
|
.fabric_make_wwn = lio_target_call_coreaddtiqn,
|
|
.fabric_drop_wwn = lio_target_call_coredeltiqn,
|
|
.add_wwn_groups = lio_target_add_wwn_groups,
|
|
.fabric_make_tpg = lio_target_tiqn_addtpg,
|
|
.fabric_drop_tpg = lio_target_tiqn_deltpg,
|
|
.fabric_make_np = lio_target_call_addnptotpg,
|
|
.fabric_drop_np = lio_target_call_delnpfromtpg,
|
|
.fabric_init_nodeacl = lio_target_init_nodeacl,
|
|
|
|
.tfc_discovery_attrs = lio_target_discovery_auth_attrs,
|
|
.tfc_wwn_attrs = lio_target_wwn_attrs,
|
|
.tfc_tpg_base_attrs = lio_target_tpg_attrs,
|
|
.tfc_tpg_attrib_attrs = lio_target_tpg_attrib_attrs,
|
|
.tfc_tpg_auth_attrs = lio_target_tpg_auth_attrs,
|
|
.tfc_tpg_param_attrs = lio_target_tpg_param_attrs,
|
|
.tfc_tpg_np_base_attrs = lio_target_portal_attrs,
|
|
.tfc_tpg_nacl_base_attrs = lio_target_initiator_attrs,
|
|
.tfc_tpg_nacl_attrib_attrs = lio_target_nacl_attrib_attrs,
|
|
.tfc_tpg_nacl_auth_attrs = lio_target_nacl_auth_attrs,
|
|
.tfc_tpg_nacl_param_attrs = lio_target_nacl_param_attrs,
|
|
};
|