--- /dev/null
+/*******************************************************************************
+ * This file contains the configfs implementation for iSCSI Target mode
+ * from the LIO-Target Project.
+ *
+ * (c) Copyright 2007-2013 Datera, Inc.
+ *
+ * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ ****************************************************************************/
+
+#include <linux/configfs.h>
+#include <linux/ctype.h>
+#include <linux/export.h>
+#include <linux/inet.h>
+#include <target/target_core_base.h>
+#include <target/target_core_fabric.h>
+#include <target/target_core_fabric_configfs.h>
+#include <target/target_core_configfs.h>
+#include <target/configfs_macros.h>
+#include <target/iscsi/iscsi_transport.h>
+
+#include <target/iscsi/iscsi_target_core.h>
+#include "iscsi_target_parameters.h"
+#include "iscsi_target_device.h"
+#include "iscsi_target_erl0.h"
+#include "iscsi_target_nodeattrib.h"
+#include "iscsi_target_tpg.h"
+#include "iscsi_target_util.h"
+#include "iscsi_target.h"
+#include <target/iscsi/iscsi_target_stat.h>
+
+struct lio_target_configfs_attribute {
+ struct configfs_attribute attr;
+ ssize_t (*show)(void *, char *);
+ ssize_t (*store)(void *, const char *, size_t);
+};
+
+/* Start items for lio_target_portal_cit */
+
+static ssize_t lio_target_np_show_sctp(
+ struct se_tpg_np *se_tpg_np,
+ char *page)
+{
+ struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
+ struct iscsi_tpg_np, se_tpg_np);
+ struct iscsi_tpg_np *tpg_np_sctp;
+ ssize_t rb;
+
+ tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
+ if (tpg_np_sctp)
+ rb = sprintf(page, "1\n");
+ else
+ rb = sprintf(page, "0\n");
+
+ return rb;
+}
+
+static ssize_t lio_target_np_store_sctp(
+ struct se_tpg_np *se_tpg_np,
+ const char *page,
+ size_t count)
+{
+ struct iscsi_np *np;
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
+ struct iscsi_tpg_np, se_tpg_np);
+ struct iscsi_tpg_np *tpg_np_sctp = NULL;
+ u32 op;
+ int ret;
+
+ ret = kstrtou32(page, 0, &op);
+ if (ret)
+ return ret;
+ if ((op != 1) && (op != 0)) {
+ pr_err("Illegal value for tpg_enable: %u\n", op);
+ return -EINVAL;
+ }
+ np = tpg_np->tpg_np;
+ if (!np) {
+ pr_err("Unable to locate struct iscsi_np from"
+ " struct iscsi_tpg_np\n");
+ return -EINVAL;
+ }
+
+ tpg = tpg_np->tpg;
+ if (iscsit_get_tpg(tpg) < 0)
+ return -EINVAL;
+
+ if (op) {
+ /*
+ * Use existing np->np_sockaddr for SCTP network portal reference
+ */
+ tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
+ np->np_ip, tpg_np, ISCSI_SCTP_TCP);
+ if (!tpg_np_sctp || IS_ERR(tpg_np_sctp))
+ goto out;
+ } else {
+ tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
+ if (!tpg_np_sctp)
+ goto out;
+
+ ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp);
+ if (ret < 0)
+ goto out;
+ }
+
+ iscsit_put_tpg(tpg);
+ return count;
+out:
+ iscsit_put_tpg(tpg);
+ return -EINVAL;
+}
+
+TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR);
+
+static ssize_t lio_target_np_show_iser(
+ struct se_tpg_np *se_tpg_np,
+ char *page)
+{
+ struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
+ struct iscsi_tpg_np, se_tpg_np);
+ struct iscsi_tpg_np *tpg_np_iser;
+ ssize_t rb;
+
+ tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
+ if (tpg_np_iser)
+ rb = sprintf(page, "1\n");
+ else
+ rb = sprintf(page, "0\n");
+
+ return rb;
+}
+
+static ssize_t lio_target_np_store_iser(
+ struct se_tpg_np *se_tpg_np,
+ const char *page,
+ size_t count)
+{
+ struct iscsi_np *np;
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
+ struct iscsi_tpg_np, se_tpg_np);
+ struct iscsi_tpg_np *tpg_np_iser = NULL;
+ char *endptr;
+ u32 op;
+ int rc = 0;
+
+ op = simple_strtoul(page, &endptr, 0);
+ if ((op != 1) && (op != 0)) {
+ pr_err("Illegal value for tpg_enable: %u\n", op);
+ return -EINVAL;
+ }
+ np = tpg_np->tpg_np;
+ if (!np) {
+ pr_err("Unable to locate struct iscsi_np from"
+ " struct iscsi_tpg_np\n");
+ return -EINVAL;
+ }
+
+ tpg = tpg_np->tpg;
+ if (iscsit_get_tpg(tpg) < 0)
+ return -EINVAL;
+
+ if (op) {
+ rc = request_module("ib_isert");
+ if (rc != 0) {
+ pr_warn("Unable to request_module for ib_isert\n");
+ rc = 0;
+ }
+
+ tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
+ np->np_ip, tpg_np, ISCSI_INFINIBAND);
+ if (IS_ERR(tpg_np_iser)) {
+ rc = PTR_ERR(tpg_np_iser);
+ goto out;
+ }
+ } else {
+ tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
+ if (tpg_np_iser) {
+ rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
+ if (rc < 0)
+ goto out;
+ }
+ }
+
+ iscsit_put_tpg(tpg);
+ return count;
+out:
+ iscsit_put_tpg(tpg);
+ return rc;
+}
+
+TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_portal_attrs[] = {
+ &lio_target_np_sctp.attr,
+ &lio_target_np_iser.attr,
+ NULL,
+};
+
+/* Stop items for lio_target_portal_cit */
+
+/* Start items for lio_target_np_cit */
+
+#define MAX_PORTAL_LEN 256
+
+static struct se_tpg_np *lio_target_call_addnptotpg(
+ struct se_portal_group *se_tpg,
+ struct config_group *group,
+ const char *name)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np;
+ char *str, *str2, *ip_str, *port_str;
+ struct __kernel_sockaddr_storage sockaddr;
+ struct sockaddr_in *sock_in;
+ struct sockaddr_in6 *sock_in6;
+ unsigned long port;
+ int ret;
+ char buf[MAX_PORTAL_LEN + 1];
+
+ if (strlen(name) > MAX_PORTAL_LEN) {
+ pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
+ (int)strlen(name), MAX_PORTAL_LEN);
+ return ERR_PTR(-EOVERFLOW);
+ }
+ memset(buf, 0, MAX_PORTAL_LEN + 1);
+ snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
+
+ memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
+
+ str = strstr(buf, "[");
+ if (str) {
+ const char *end;
+
+ str2 = strstr(str, "]");
+ if (!str2) {
+ pr_err("Unable to locate trailing \"]\""
+ " in IPv6 iSCSI network portal address\n");
+ return ERR_PTR(-EINVAL);
+ }
+ str++; /* Skip over leading "[" */
+ *str2 = '\0'; /* Terminate the IPv6 address */
+ str2++; /* Skip over the "]" */
+ port_str = strstr(str2, ":");
+ if (!port_str) {
+ pr_err("Unable to locate \":port\""
+ " in IPv6 iSCSI network portal address\n");
+ return ERR_PTR(-EINVAL);
+ }
+ *port_str = '\0'; /* Terminate string for IP */
+ port_str++; /* Skip over ":" */
+
+ ret = kstrtoul(port_str, 0, &port);
+ if (ret < 0) {
+ pr_err("kstrtoul() failed for port_str: %d\n", ret);
+ return ERR_PTR(ret);
+ }
+ sock_in6 = (struct sockaddr_in6 *)&sockaddr;
+ sock_in6->sin6_family = AF_INET6;
+ sock_in6->sin6_port = htons((unsigned short)port);
+ ret = in6_pton(str, IPV6_ADDRESS_SPACE,
+ (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
+ if (ret <= 0) {
+ pr_err("in6_pton returned: %d\n", ret);
+ return ERR_PTR(-EINVAL);
+ }
+ } else {
+ str = ip_str = &buf[0];
+ port_str = strstr(ip_str, ":");
+ if (!port_str) {
+ pr_err("Unable to locate \":port\""
+ " in IPv4 iSCSI network portal address\n");
+ return ERR_PTR(-EINVAL);
+ }
+ *port_str = '\0'; /* Terminate string for IP */
+ port_str++; /* Skip over ":" */
+
+ ret = kstrtoul(port_str, 0, &port);
+ if (ret < 0) {
+ pr_err("kstrtoul() failed for port_str: %d\n", ret);
+ return ERR_PTR(ret);
+ }
+ sock_in = (struct sockaddr_in *)&sockaddr;
+ sock_in->sin_family = AF_INET;
+ sock_in->sin_port = htons((unsigned short)port);
+ sock_in->sin_addr.s_addr = in_aton(ip_str);
+ }
+ tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
+ ret = iscsit_get_tpg(tpg);
+ if (ret < 0)
+ return ERR_PTR(-EINVAL);
+
+ pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
+ " PORTAL: %s\n",
+ config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
+ tpg->tpgt, name);
+ /*
+ * Assume ISCSI_TCP by default. Other network portals for other
+ * iSCSI fabrics:
+ *
+ * Traditional iSCSI over SCTP (initial support)
+ * iSER/TCP (TODO, hardware available)
+ * iSER/SCTP (TODO, software emulation with osc-iwarp)
+ * iSER/IB (TODO, hardware available)
+ *
+ * can be enabled with attributes under
+ * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
+ *
+ */
+ tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
+ ISCSI_TCP);
+ if (IS_ERR(tpg_np)) {
+ iscsit_put_tpg(tpg);
+ return ERR_CAST(tpg_np);
+ }
+ pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
+
+ iscsit_put_tpg(tpg);
+ return &tpg_np->se_tpg_np;
+}
+
+static void lio_target_call_delnpfromtpg(
+ struct se_tpg_np *se_tpg_np)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np;
+ struct se_portal_group *se_tpg;
+ int ret;
+
+ tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
+ tpg = tpg_np->tpg;
+ ret = iscsit_get_tpg(tpg);
+ if (ret < 0)
+ return;
+
+ se_tpg = &tpg->tpg_se_tpg;
+ pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
+ " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
+ tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
+
+ ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
+ if (ret < 0)
+ goto out;
+
+ pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
+out:
+ iscsit_put_tpg(tpg);
+}
+
+/* End items for lio_target_np_cit */
+
+/* Start items for lio_target_nacl_attrib_cit */
+
+#define DEF_NACL_ATTRIB(name) \
+static ssize_t iscsi_nacl_attrib_show_##name( \
+ struct se_node_acl *se_nacl, \
+ char *page) \
+{ \
+ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
+ se_node_acl); \
+ \
+ return sprintf(page, "%u\n", nacl->node_attrib.name); \
+} \
+ \
+static ssize_t iscsi_nacl_attrib_store_##name( \
+ struct se_node_acl *se_nacl, \
+ const char *page, \
+ size_t count) \
+{ \
+ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
+ se_node_acl); \
+ u32 val; \
+ int ret; \
+ \
+ ret = kstrtou32(page, 0, &val); \
+ if (ret) \
+ return ret; \
+ ret = iscsit_na_##name(nacl, val); \
+ if (ret < 0) \
+ return ret; \
+ \
+ return count; \
+}
+
+#define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
+/*
+ * Define iscsi_node_attrib_s_dataout_timeout
+ */
+DEF_NACL_ATTRIB(dataout_timeout);
+NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_node_attrib_s_dataout_timeout_retries
+ */
+DEF_NACL_ATTRIB(dataout_timeout_retries);
+NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_node_attrib_s_default_erl
+ */
+DEF_NACL_ATTRIB(default_erl);
+NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_node_attrib_s_nopin_timeout
+ */
+DEF_NACL_ATTRIB(nopin_timeout);
+NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_node_attrib_s_nopin_response_timeout
+ */
+DEF_NACL_ATTRIB(nopin_response_timeout);
+NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_node_attrib_s_random_datain_pdu_offsets
+ */
+DEF_NACL_ATTRIB(random_datain_pdu_offsets);
+NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_node_attrib_s_random_datain_seq_offsets
+ */
+DEF_NACL_ATTRIB(random_datain_seq_offsets);
+NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_node_attrib_s_random_r2t_offsets
+ */
+DEF_NACL_ATTRIB(random_r2t_offsets);
+NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
+ &iscsi_nacl_attrib_dataout_timeout.attr,
+ &iscsi_nacl_attrib_dataout_timeout_retries.attr,
+ &iscsi_nacl_attrib_default_erl.attr,
+ &iscsi_nacl_attrib_nopin_timeout.attr,
+ &iscsi_nacl_attrib_nopin_response_timeout.attr,
+ &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
+ &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
+ &iscsi_nacl_attrib_random_r2t_offsets.attr,
+ NULL,
+};
+
+/* End items for lio_target_nacl_attrib_cit */
+
+/* Start items for lio_target_nacl_auth_cit */
+
+#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
+static ssize_t __iscsi_##prefix##_show_##name( \
+ struct iscsi_node_acl *nacl, \
+ char *page) \
+{ \
+ struct iscsi_node_auth *auth = &nacl->node_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
+} \
+ \
+static ssize_t __iscsi_##prefix##_store_##name( \
+ struct iscsi_node_acl *nacl, \
+ const char *page, \
+ size_t count) \
+{ \
+ struct iscsi_node_auth *auth = &nacl->node_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ if (count >= sizeof(auth->name)) \
+ return -EINVAL; \
+ snprintf(auth->name, sizeof(auth->name), "%s", page); \
+ if (!strncmp("NULL", auth->name, 4)) \
+ auth->naf_flags &= ~flags; \
+ else \
+ auth->naf_flags |= flags; \
+ \
+ if ((auth->naf_flags & NAF_USERID_IN_SET) && \
+ (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
+ auth->authenticate_target = 1; \
+ else \
+ auth->authenticate_target = 0; \
+ \
+ return count; \
+}
+
+#define __DEF_NACL_AUTH_INT(prefix, name) \
+static ssize_t __iscsi_##prefix##_show_##name( \
+ struct iscsi_node_acl *nacl, \
+ char *page) \
+{ \
+ struct iscsi_node_auth *auth = &nacl->node_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ \
+ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
+}
+
+#define DEF_NACL_AUTH_STR(name, flags) \
+ __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
+static ssize_t iscsi_nacl_auth_show_##name( \
+ struct se_node_acl *nacl, \
+ char *page) \
+{ \
+ return __iscsi_nacl_auth_show_##name(container_of(nacl, \
+ struct iscsi_node_acl, se_node_acl), page); \
+} \
+static ssize_t iscsi_nacl_auth_store_##name( \
+ struct se_node_acl *nacl, \
+ const char *page, \
+ size_t count) \
+{ \
+ return __iscsi_nacl_auth_store_##name(container_of(nacl, \
+ struct iscsi_node_acl, se_node_acl), page, count); \
+}
+
+#define DEF_NACL_AUTH_INT(name) \
+ __DEF_NACL_AUTH_INT(nacl_auth, name) \
+static ssize_t iscsi_nacl_auth_show_##name( \
+ struct se_node_acl *nacl, \
+ char *page) \
+{ \
+ return __iscsi_nacl_auth_show_##name(container_of(nacl, \
+ struct iscsi_node_acl, se_node_acl), page); \
+}
+
+#define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode);
+#define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name);
+
+/*
+ * One-way authentication userid
+ */
+DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
+AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
+/*
+ * One-way authentication password
+ */
+DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
+AUTH_ATTR(password, S_IRUGO | S_IWUSR);
+/*
+ * Enforce mutual authentication
+ */
+DEF_NACL_AUTH_INT(authenticate_target);
+AUTH_ATTR_RO(authenticate_target);
+/*
+ * Mutual authentication userid
+ */
+DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
+AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
+/*
+ * Mutual authentication password
+ */
+DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
+AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
+ &iscsi_nacl_auth_userid.attr,
+ &iscsi_nacl_auth_password.attr,
+ &iscsi_nacl_auth_authenticate_target.attr,
+ &iscsi_nacl_auth_userid_mutual.attr,
+ &iscsi_nacl_auth_password_mutual.attr,
+ NULL,
+};
+
+/* End items for lio_target_nacl_auth_cit */
+
+/* Start items for lio_target_nacl_param_cit */
+
+#define DEF_NACL_PARAM(name) \
+static ssize_t iscsi_nacl_param_show_##name( \
+ struct se_node_acl *se_nacl, \
+ char *page) \
+{ \
+ struct iscsi_session *sess; \
+ struct se_session *se_sess; \
+ ssize_t rb; \
+ \
+ spin_lock_bh(&se_nacl->nacl_sess_lock); \
+ se_sess = se_nacl->nacl_sess; \
+ if (!se_sess) { \
+ rb = snprintf(page, PAGE_SIZE, \
+ "No Active iSCSI Session\n"); \
+ } else { \
+ sess = se_sess->fabric_sess_ptr; \
+ rb = snprintf(page, PAGE_SIZE, "%u\n", \
+ (u32)sess->sess_ops->name); \
+ } \
+ spin_unlock_bh(&se_nacl->nacl_sess_lock); \
+ \
+ return rb; \
+}
+
+#define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name);
+
+DEF_NACL_PARAM(MaxConnections);
+NACL_PARAM_ATTR(MaxConnections);
+
+DEF_NACL_PARAM(InitialR2T);
+NACL_PARAM_ATTR(InitialR2T);
+
+DEF_NACL_PARAM(ImmediateData);
+NACL_PARAM_ATTR(ImmediateData);
+
+DEF_NACL_PARAM(MaxBurstLength);
+NACL_PARAM_ATTR(MaxBurstLength);
+
+DEF_NACL_PARAM(FirstBurstLength);
+NACL_PARAM_ATTR(FirstBurstLength);
+
+DEF_NACL_PARAM(DefaultTime2Wait);
+NACL_PARAM_ATTR(DefaultTime2Wait);
+
+DEF_NACL_PARAM(DefaultTime2Retain);
+NACL_PARAM_ATTR(DefaultTime2Retain);
+
+DEF_NACL_PARAM(MaxOutstandingR2T);
+NACL_PARAM_ATTR(MaxOutstandingR2T);
+
+DEF_NACL_PARAM(DataPDUInOrder);
+NACL_PARAM_ATTR(DataPDUInOrder);
+
+DEF_NACL_PARAM(DataSequenceInOrder);
+NACL_PARAM_ATTR(DataSequenceInOrder);
+
+DEF_NACL_PARAM(ErrorRecoveryLevel);
+NACL_PARAM_ATTR(ErrorRecoveryLevel);
+
+static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
+ &iscsi_nacl_param_MaxConnections.attr,
+ &iscsi_nacl_param_InitialR2T.attr,
+ &iscsi_nacl_param_ImmediateData.attr,
+ &iscsi_nacl_param_MaxBurstLength.attr,
+ &iscsi_nacl_param_FirstBurstLength.attr,
+ &iscsi_nacl_param_DefaultTime2Wait.attr,
+ &iscsi_nacl_param_DefaultTime2Retain.attr,
+ &iscsi_nacl_param_MaxOutstandingR2T.attr,
+ &iscsi_nacl_param_DataPDUInOrder.attr,
+ &iscsi_nacl_param_DataSequenceInOrder.attr,
+ &iscsi_nacl_param_ErrorRecoveryLevel.attr,
+ NULL,
+};
+
+/* End items for lio_target_nacl_param_cit */
+
+/* Start items for lio_target_acl_cit */
+
+static ssize_t lio_target_nacl_show_info(
+ struct se_node_acl *se_nacl,
+ char *page)
+{
+ struct iscsi_session *sess;
+ struct iscsi_conn *conn;
+ struct se_session *se_sess;
+ ssize_t rb = 0;
+
+ 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");
+ rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
+ " 0x%08x 0x%08x\n",
+ sess->cmdsn_window,
+ (sess->max_cmd_sn - sess->exp_cmd_sn) + 1,
+ sess->exp_cmd_sn, sess->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 %s %s", conn->login_ip,
+ (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;
+}
+
+TF_NACL_BASE_ATTR_RO(lio_target, info);
+
+static ssize_t lio_target_nacl_show_cmdsn_depth(
+ struct se_node_acl *se_nacl,
+ char *page)
+{
+ return sprintf(page, "%u\n", se_nacl->queue_depth);
+}
+
+static ssize_t lio_target_nacl_store_cmdsn_depth(
+ struct se_node_acl *se_nacl,
+ const char *page,
+ size_t count)
+{
+ 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;
+ /*
+ * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
+ */
+ ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
+ config_item_name(acl_ci), cmdsn_depth, 1);
+
+ 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;
+}
+
+TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
+
+static ssize_t lio_target_nacl_show_tag(
+ struct se_node_acl *se_nacl,
+ char *page)
+{
+ return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag);
+}
+
+static ssize_t lio_target_nacl_store_tag(
+ struct se_node_acl *se_nacl,
+ const char *page,
+ size_t count)
+{
+ int ret;
+
+ ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
+
+ if (ret < 0)
+ return ret;
+ return count;
+}
+
+TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_initiator_attrs[] = {
+ &lio_target_nacl_info.attr,
+ &lio_target_nacl_cmdsn_depth.attr,
+ &lio_target_nacl_tag.attr,
+ NULL,
+};
+
+static struct se_node_acl *lio_tpg_alloc_fabric_acl(
+ struct se_portal_group *se_tpg)
+{
+ struct iscsi_node_acl *acl;
+
+ acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
+ if (!acl) {
+ pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
+ return NULL;
+ }
+
+ return &acl->se_node_acl;
+}
+
+static struct se_node_acl *lio_target_make_nodeacl(
+ struct se_portal_group *se_tpg,
+ struct config_group *group,
+ const char *name)
+{
+ struct config_group *stats_cg;
+ struct iscsi_node_acl *acl;
+ struct se_node_acl *se_nacl_new, *se_nacl;
+ struct iscsi_portal_group *tpg = container_of(se_tpg,
+ struct iscsi_portal_group, tpg_se_tpg);
+ u32 cmdsn_depth;
+
+ se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
+ if (!se_nacl_new)
+ return ERR_PTR(-ENOMEM);
+
+ cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth;
+ /*
+ * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
+ * when converting a NdoeACL from demo mode -> explict
+ */
+ se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
+ name, cmdsn_depth);
+ if (IS_ERR(se_nacl))
+ return se_nacl;
+
+ acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
+ stats_cg = &se_nacl->acl_fabric_stat_group;
+
+ stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
+ GFP_KERNEL);
+ if (!stats_cg->default_groups) {
+ pr_err("Unable to allocate memory for"
+ " stats_cg->default_groups\n");
+ core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
+ kfree(acl);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
+ stats_cg->default_groups[1] = NULL;
+ config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
+ "iscsi_sess_stats", &iscsi_stat_sess_cit);
+
+ return se_nacl;
+}
+
+static void lio_target_drop_nodeacl(
+ struct se_node_acl *se_nacl)
+{
+ struct se_portal_group *se_tpg = se_nacl->se_tpg;
+ struct iscsi_node_acl *acl = container_of(se_nacl,
+ struct iscsi_node_acl, se_node_acl);
+ struct config_item *df_item;
+ struct config_group *stats_cg;
+ int i;
+
+ stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
+ for (i = 0; stats_cg->default_groups[i]; i++) {
+ df_item = &stats_cg->default_groups[i]->cg_item;
+ stats_cg->default_groups[i] = NULL;
+ config_item_put(df_item);
+ }
+ kfree(stats_cg->default_groups);
+
+ core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
+ kfree(acl);
+}
+
+/* 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_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ 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_store_##name( \
+ 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); \
+ 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; \
+}
+
+#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
+
+/*
+ * Define iscsi_tpg_attrib_s_authentication
+ */
+DEF_TPG_ATTRIB(authentication);
+TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_login_timeout
+ */
+DEF_TPG_ATTRIB(login_timeout);
+TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_netif_timeout
+ */
+DEF_TPG_ATTRIB(netif_timeout);
+TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_generate_node_acls
+ */
+DEF_TPG_ATTRIB(generate_node_acls);
+TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_default_cmdsn_depth
+ */
+DEF_TPG_ATTRIB(default_cmdsn_depth);
+TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
+/*
+ Define iscsi_tpg_attrib_s_cache_dynamic_acls
+ */
+DEF_TPG_ATTRIB(cache_dynamic_acls);
+TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_demo_mode_write_protect
+ */
+DEF_TPG_ATTRIB(demo_mode_write_protect);
+TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_prod_mode_write_protect
+ */
+DEF_TPG_ATTRIB(prod_mode_write_protect);
+TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_demo_mode_discovery,
+ */
+DEF_TPG_ATTRIB(demo_mode_discovery);
+TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_default_erl
+ */
+DEF_TPG_ATTRIB(default_erl);
+TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_t10_pi
+ */
+DEF_TPG_ATTRIB(t10_pi);
+TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_fabric_prot_type
+ */
+DEF_TPG_ATTRIB(fabric_prot_type);
+TPG_ATTR(fabric_prot_type, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
+ &iscsi_tpg_attrib_authentication.attr,
+ &iscsi_tpg_attrib_login_timeout.attr,
+ &iscsi_tpg_attrib_netif_timeout.attr,
+ &iscsi_tpg_attrib_generate_node_acls.attr,
+ &iscsi_tpg_attrib_default_cmdsn_depth.attr,
+ &iscsi_tpg_attrib_cache_dynamic_acls.attr,
+ &iscsi_tpg_attrib_demo_mode_write_protect.attr,
+ &iscsi_tpg_attrib_prod_mode_write_protect.attr,
+ &iscsi_tpg_attrib_demo_mode_discovery.attr,
+ &iscsi_tpg_attrib_default_erl.attr,
+ &iscsi_tpg_attrib_t10_pi.attr,
+ &iscsi_tpg_attrib_fabric_prot_type.attr,
+ 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##_show_##name( \
+ 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##_store_##name( \
+ 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_INT(prefix, name) \
+static ssize_t __iscsi_##prefix##_show_##name( \
+ 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_STR(name, flags) \
+ __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
+static ssize_t iscsi_tpg_auth_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ return __iscsi_tpg_auth_show_##name(se_tpg, page); \
+} \
+ \
+static ssize_t iscsi_tpg_auth_store_##name( \
+ struct se_portal_group *se_tpg, \
+ const char *page, \
+ size_t count) \
+{ \
+ return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \
+}
+
+#define DEF_TPG_AUTH_INT(name) \
+ __DEF_TPG_AUTH_INT(tpg_auth, name) \
+static ssize_t iscsi_tpg_auth_show_##name( \
+ struct se_portal_group *se_tpg, \
+ char *page) \
+{ \
+ return __iscsi_tpg_auth_show_##name(se_tpg, page); \
+}
+
+#define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode);
+#define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name);
+
+/*
+ * * One-way authentication userid
+ * */
+DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
+TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
+/*
+ * * One-way authentication password
+ * */
+DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
+TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
+/*
+ * * Enforce mutual authentication
+ * */
+DEF_TPG_AUTH_INT(authenticate_target);
+TPG_AUTH_ATTR_RO(authenticate_target);
+/*
+ * * Mutual authentication userid
+ * */
+DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
+TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
+/*
+ * * Mutual authentication password
+ * */
+DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
+TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
+ &iscsi_tpg_auth_userid.attr,
+ &iscsi_tpg_auth_password.attr,
+ &iscsi_tpg_auth_authenticate_target.attr,
+ &iscsi_tpg_auth_userid_mutual.attr,
+ &iscsi_tpg_auth_password_mutual.attr,
+ 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_show_##name( \
+ 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_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_store_##name( \
+ 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); \
+ 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; \
+}
+
+#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
+
+DEF_TPG_PARAM(AuthMethod);
+TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(HeaderDigest);
+TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(DataDigest);
+TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(MaxConnections);
+TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(TargetAlias);
+TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(InitialR2T);
+TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(ImmediateData);
+TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(MaxRecvDataSegmentLength);
+TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(MaxXmitDataSegmentLength);
+TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(MaxBurstLength);
+TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(FirstBurstLength);
+TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(DefaultTime2Wait);
+TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(DefaultTime2Retain);
+TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(MaxOutstandingR2T);
+TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(DataPDUInOrder);
+TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(DataSequenceInOrder);
+TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(ErrorRecoveryLevel);
+TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(IFMarker);
+TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(OFMarker);
+TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(IFMarkInt);
+TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
+
+DEF_TPG_PARAM(OFMarkInt);
+TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
+ &iscsi_tpg_param_AuthMethod.attr,
+ &iscsi_tpg_param_HeaderDigest.attr,
+ &iscsi_tpg_param_DataDigest.attr,
+ &iscsi_tpg_param_MaxConnections.attr,
+ &iscsi_tpg_param_TargetAlias.attr,
+ &iscsi_tpg_param_InitialR2T.attr,
+ &iscsi_tpg_param_ImmediateData.attr,
+ &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
+ &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
+ &iscsi_tpg_param_MaxBurstLength.attr,
+ &iscsi_tpg_param_FirstBurstLength.attr,
+ &iscsi_tpg_param_DefaultTime2Wait.attr,
+ &iscsi_tpg_param_DefaultTime2Retain.attr,
+ &iscsi_tpg_param_MaxOutstandingR2T.attr,
+ &iscsi_tpg_param_DataPDUInOrder.attr,
+ &iscsi_tpg_param_DataSequenceInOrder.attr,
+ &iscsi_tpg_param_ErrorRecoveryLevel.attr,
+ &iscsi_tpg_param_IFMarker.attr,
+ &iscsi_tpg_param_OFMarker.attr,
+ &iscsi_tpg_param_IFMarkInt.attr,
+ &iscsi_tpg_param_OFMarkInt.attr,
+ NULL,
+};
+
+/* End items for lio_target_tpg_param_cit */
+
+/* Start items for lio_target_tpg_cit */
+
+static ssize_t lio_target_tpg_show_enable(
+ struct se_portal_group *se_tpg,
+ char *page)
+{
+ 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_store_enable(
+ 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);
+ 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;
+}
+
+TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
+
+static ssize_t lio_target_tpg_show_dynamic_sessions(
+ struct se_portal_group *se_tpg,
+ char *page)
+{
+ return target_show_dynamic_sessions(se_tpg, page);
+}
+
+TF_TPG_BASE_ATTR_RO(lio_target, dynamic_sessions);
+
+static struct configfs_attribute *lio_target_tpg_attrs[] = {
+ &lio_target_tpg_enable.attr,
+ &lio_target_tpg_dynamic_sessions.attr,
+ NULL,
+};
+
+/* End items for lio_target_tpg_cit */
+
+/* Start items for lio_target_tiqn_cit */
+
+static struct se_portal_group *lio_target_tiqn_addtpg(
+ struct se_wwn *wwn,
+ struct config_group *group,
+ const char *name)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tiqn *tiqn;
+ char *tpgt_str;
+ int ret;
+ u16 tpgt;
+
+ tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
+ /*
+ * Only tpgt_# directory groups can be created below
+ * target/iscsi/iqn.superturodiskarry/
+ */
+ tpgt_str = strstr(name, "tpgt_");
+ if (!tpgt_str) {
+ pr_err("Unable to locate \"tpgt_#\" directory"
+ " group\n");
+ return NULL;
+ }
+ tpgt_str += 5; /* Skip ahead of "tpgt_" */
+ ret = kstrtou16(tpgt_str, 0, &tpgt);
+ if (ret)
+ return NULL;
+
+ tpg = iscsit_alloc_portal_group(tiqn, tpgt);
+ if (!tpg)
+ return NULL;
+
+ ret = core_tpg_register(&iscsi_ops, wwn, &tpg->tpg_se_tpg,
+ tpg, TRANSPORT_TPG_TYPE_NORMAL);
+ if (ret < 0)
+ return NULL;
+
+ ret = iscsit_tpg_add_portal_group(tiqn, tpg);
+ if (ret != 0)
+ goto out;
+
+ pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
+ pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
+ name);
+ return &tpg->tpg_se_tpg;
+out:
+ core_tpg_deregister(&tpg->tpg_se_tpg);
+ kfree(tpg);
+ return NULL;
+}
+
+static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tiqn *tiqn;
+
+ tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
+ tiqn = tpg->tpg_tiqn;
+ /*
+ * iscsit_tpg_del_portal_group() assumes force=1
+ */
+ pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
+ iscsit_tpg_del_portal_group(tiqn, tpg, 1);
+}
+
+/* End items for lio_target_tiqn_cit */
+
+/* Start LIO-Target TIQN struct contig_item lio_target_cit */
+
+static ssize_t lio_target_wwn_show_attr_lio_version(
+ struct target_fabric_configfs *tf,
+ char *page)
+{
+ return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
+}
+
+TF_WWN_ATTR_RO(lio_target, lio_version);
+
+static struct configfs_attribute *lio_target_wwn_attrs[] = {
+ &lio_target_wwn_lio_version.attr,
+ NULL,
+};
+
+static struct se_wwn *lio_target_call_coreaddtiqn(
+ struct target_fabric_configfs *tf,
+ struct config_group *group,
+ const char *name)
+{
+ struct config_group *stats_cg;
+ struct iscsi_tiqn *tiqn;
+
+ tiqn = iscsit_add_tiqn((unsigned char *)name);
+ if (IS_ERR(tiqn))
+ return ERR_CAST(tiqn);
+ /*
+ * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
+ */
+ stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
+
+ stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
+ GFP_KERNEL);
+ if (!stats_cg->default_groups) {
+ pr_err("Unable to allocate memory for"
+ " stats_cg->default_groups\n");
+ iscsit_del_tiqn(tiqn);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group;
+ stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group;
+ stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group;
+ stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group;
+ stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group;
+ stats_cg->default_groups[5] = NULL;
+ config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
+ "iscsi_instance", &iscsi_stat_instance_cit);
+ config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
+ "iscsi_sess_err", &iscsi_stat_sess_err_cit);
+ config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
+ "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
+ config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
+ "iscsi_login_stats", &iscsi_stat_login_cit);
+ config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
+ "iscsi_logout_stats", &iscsi_stat_logout_cit);
+
+ pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
+ pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
+ " %s\n", name);
+ return &tiqn->tiqn_wwn;
+}
+
+static void lio_target_call_coredeltiqn(
+ struct se_wwn *wwn)
+{
+ struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
+ struct config_item *df_item;
+ struct config_group *stats_cg;
+ int i;
+
+ stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
+ for (i = 0; stats_cg->default_groups[i]; i++) {
+ df_item = &stats_cg->default_groups[i]->cg_item;
+ stats_cg->default_groups[i] = NULL;
+ config_item_put(df_item);
+ }
+ kfree(stats_cg->default_groups);
+
+ 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_show_##name( \
+ struct target_fabric_configfs *tf, \
+ char *page) \
+{ \
+ return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
+ page); \
+} \
+static ssize_t iscsi_disc_store_##name( \
+ struct target_fabric_configfs *tf, \
+ const char *page, \
+ size_t count) \
+{ \
+ return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
+ page, count); \
+}
+
+#define DEF_DISC_AUTH_INT(name) \
+ __DEF_NACL_AUTH_INT(disc, name) \
+static ssize_t iscsi_disc_show_##name( \
+ struct target_fabric_configfs *tf, \
+ char *page) \
+{ \
+ return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
+ page); \
+}
+
+#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
+#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
+
+/*
+ * One-way authentication userid
+ */
+DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
+DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
+/*
+ * One-way authentication password
+ */
+DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
+DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
+/*
+ * Enforce mutual authentication
+ */
+DEF_DISC_AUTH_INT(authenticate_target);
+DISC_AUTH_ATTR_RO(authenticate_target);
+/*
+ * Mutual authentication userid
+ */
+DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
+DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
+/*
+ * Mutual authentication password
+ */
+DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
+DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
+
+/*
+ * enforce_discovery_auth
+ */
+static ssize_t iscsi_disc_show_enforce_discovery_auth(
+ struct target_fabric_configfs *tf,
+ 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_store_enforce_discovery_auth(
+ struct target_fabric_configfs *tf,
+ 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;
+}
+
+DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
+ &iscsi_disc_userid.attr,
+ &iscsi_disc_password.attr,
+ &iscsi_disc_authenticate_target.attr,
+ &iscsi_disc_userid_mutual.attr,
+ &iscsi_disc_password_mutual.attr,
+ &iscsi_disc_enforce_discovery_auth.attr,
+ NULL,
+};
+
+/* End lio_target_discovery_auth_cit */
+
+/* Start functions for target_core_fabric_ops */
+
+static char *iscsi_get_fabric_name(void)
+{
+ return "iSCSI";
+}
+
+static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+
+ /* only used for printks or comparism with ->ref_task_tag */
+ return (__force u32)cmd->init_task_tag;
+}
+
+static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+
+ return cmd->i_state;
+}
+
+static u32 lio_sess_get_index(struct se_session *se_sess)
+{
+ struct iscsi_session *sess = se_sess->fabric_sess_ptr;
+
+ return sess->session_index;
+}
+
+static u32 lio_sess_get_initiator_sid(
+ struct se_session *se_sess,
+ unsigned char *buf,
+ u32 size)
+{
+ struct iscsi_session *sess = se_sess->fabric_sess_ptr;
+ /*
+ * iSCSI Initiator Session Identifier from RFC-3720.
+ */
+ return snprintf(buf, size, "%6phN", sess->isid);
+}
+
+static int lio_queue_data_in(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+
+ cmd->i_state = ISTATE_SEND_DATAIN;
+ cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
+
+ return 0;
+}
+
+static int lio_write_pending(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+ struct iscsi_conn *conn = cmd->conn;
+
+ if (!cmd->immediate_data && !cmd->unsolicited_data)
+ return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
+
+ return 0;
+}
+
+static int lio_write_pending_status(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+ int ret;
+
+ spin_lock_bh(&cmd->istate_lock);
+ ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
+ spin_unlock_bh(&cmd->istate_lock);
+
+ return ret;
+}
+
+static int lio_queue_status(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+
+ cmd->i_state = ISTATE_SEND_STATUS;
+
+ if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
+ iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
+ return 0;
+ }
+ cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
+
+ return 0;
+}
+
+static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+
+ cmd->i_state = ISTATE_SEND_TASKMGTRSP;
+ iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
+}
+
+static void lio_aborted_task(struct se_cmd *se_cmd)
+{
+ struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+
+ cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
+}
+
+static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return &tpg->tpg_tiqn->tiqn[0];
+}
+
+static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return tpg->tpgt;
+}
+
+static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return tpg->tpg_attrib.default_cmdsn_depth;
+}
+
+static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return tpg->tpg_attrib.generate_node_acls;
+}
+
+static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return tpg->tpg_attrib.cache_dynamic_acls;
+}
+
+static int lio_tpg_check_demo_mode_write_protect(
+ struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return tpg->tpg_attrib.demo_mode_write_protect;
+}
+
+static int lio_tpg_check_prod_mode_write_protect(
+ struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return tpg->tpg_attrib.prod_mode_write_protect;
+}
+
+static int lio_tpg_check_prot_fabric_only(
+ struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+ /*
+ * Only report fabric_prot_type if t10_pi has also been enabled
+ * for incoming ib_isert sessions.
+ */
+ if (!tpg->tpg_attrib.t10_pi)
+ return 0;
+
+ return tpg->tpg_attrib.fabric_prot_type;
+}
+
+static void lio_tpg_release_fabric_acl(
+ struct se_portal_group *se_tpg,
+ struct se_node_acl *se_acl)
+{
+ struct iscsi_node_acl *acl = container_of(se_acl,
+ struct iscsi_node_acl, se_node_acl);
+ kfree(acl);
+}
+
+/*
+ * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
+ *
+ * Also, this function calls iscsit_inc_session_usage_count() on the
+ * struct iscsi_session in question.
+ */
+static int lio_tpg_shutdown_session(struct se_session *se_sess)
+{
+ struct iscsi_session *sess = se_sess->fabric_sess_ptr;
+
+ 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);
+ return 0;
+ }
+ atomic_set(&sess->session_reinstatement, 1);
+ spin_unlock(&sess->conn_lock);
+
+ iscsit_stop_time2retain_timer(sess);
+ iscsit_stop_session(sess, 1, 1);
+
+ return 1;
+}
+
+/*
+ * Calls iscsit_dec_session_usage_count() as inverse of
+ * lio_tpg_shutdown_session()
+ */
+static void lio_tpg_close_session(struct se_session *se_sess)
+{
+ struct iscsi_session *sess = se_sess->fabric_sess_ptr;
+ /*
+ * If the iSCSI Session for the iSCSI Initiator Node exists,
+ * forcefully shutdown the iSCSI NEXUS.
+ */
+ iscsit_close_session(sess);
+}
+
+static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
+
+ return 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->se_sess, 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",
+ .get_fabric_name = iscsi_get_fabric_name,
+ .get_fabric_proto_ident = iscsi_get_fabric_proto_ident,
+ .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_get_pr_transport_id = iscsi_get_pr_transport_id,
+ .tpg_get_pr_transport_id_len = iscsi_get_pr_transport_id_len,
+ .tpg_parse_pr_out_transport_id = iscsi_parse_pr_out_transport_id,
+ .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_alloc_fabric_acl = lio_tpg_alloc_fabric_acl,
+ .tpg_release_fabric_acl = lio_tpg_release_fabric_acl,
+ .tpg_get_inst_index = lio_tpg_get_inst_index,
+ .check_stop_free = lio_check_stop_free,
+ .release_cmd = lio_release_cmd,
+ .shutdown_session = lio_tpg_shutdown_session,
+ .close_session = lio_tpg_close_session,
+ .sess_get_index = lio_sess_get_index,
+ .sess_get_initiator_sid = lio_sess_get_initiator_sid,
+ .write_pending = lio_write_pending,
+ .write_pending_status = lio_write_pending_status,
+ .set_default_node_attributes = lio_set_default_node_attributes,
+ .get_task_tag = iscsi_get_task_tag,
+ .get_cmd_state = iscsi_get_cmd_state,
+ .queue_data_in = lio_queue_data_in,
+ .queue_status = lio_queue_status,
+ .queue_tm_rsp = lio_queue_tm_rsp,
+ .aborted_task = lio_aborted_task,
+ .fabric_make_wwn = lio_target_call_coreaddtiqn,
+ .fabric_drop_wwn = lio_target_call_coredeltiqn,
+ .fabric_make_tpg = lio_target_tiqn_addtpg,
+ .fabric_drop_tpg = lio_target_tiqn_deltpg,
+ .fabric_make_np = lio_target_call_addnptotpg,
+ .fabric_drop_np = lio_target_call_delnpfromtpg,
+ .fabric_make_nodeacl = lio_target_make_nodeacl,
+ .fabric_drop_nodeacl = lio_target_drop_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,
+};
Code Review / kvmfornfv.git / blobdiff