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Diffstat (limited to 'drivers/target/iscsi/iscsi_target_configfs.c')
-rw-r--r--drivers/target/iscsi/iscsi_target_configfs.c1595
1 files changed, 1595 insertions, 0 deletions
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
new file mode 100644
index 000000000..c142a67dc
--- /dev/null
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -0,0 +1,1595 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*******************************************************************************
+ * 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>
+ *
+ ****************************************************************************/
+
+#include <linux/configfs.h>
+#include <linux/ctype.h>
+#include <linux/export.h>
+#include <linux/inet.h>
+#include <linux/module.h>
+#include <net/ipv6.h>
+#include <target/target_core_base.h>
+#include <target/target_core_fabric.h>
+#include <target/iscsi/iscsi_transport.h>
+#include <target/iscsi/iscsi_target_core.h>
+#include "iscsi_target_parameters.h"
+#include "iscsi_target_device.h"
+#include "iscsi_target_erl0.h"
+#include "iscsi_target_nodeattrib.h"
+#include "iscsi_target_tpg.h"
+#include "iscsi_target_util.h"
+#include "iscsi_target.h"
+#include <target/iscsi/iscsi_target_stat.h>
+
+
+/* Start items for lio_target_portal_cit */
+
+static inline struct iscsi_tpg_np *to_iscsi_tpg_np(struct config_item *item)
+{
+ return container_of(to_tpg_np(item), struct iscsi_tpg_np, se_tpg_np);
+}
+
+static ssize_t lio_target_np_driver_show(struct config_item *item, char *page,
+ enum iscsit_transport_type type)
+{
+ struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
+ struct iscsi_tpg_np *tpg_np_new;
+ ssize_t rb;
+
+ tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
+ if (tpg_np_new)
+ rb = sprintf(page, "1\n");
+ else
+ rb = sprintf(page, "0\n");
+
+ return rb;
+}
+
+static ssize_t lio_target_np_driver_store(struct config_item *item,
+ const char *page, size_t count, enum iscsit_transport_type type,
+ const char *mod_name)
+{
+ struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
+ struct iscsi_np *np;
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np_new = NULL;
+ u32 op;
+ int rc;
+
+ rc = kstrtou32(page, 0, &op);
+ if (rc)
+ return rc;
+ 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) {
+ if (strlen(mod_name)) {
+ rc = request_module(mod_name);
+ if (rc != 0) {
+ pr_warn("Unable to request_module for %s\n",
+ mod_name);
+ rc = 0;
+ }
+ }
+
+ tpg_np_new = iscsit_tpg_add_network_portal(tpg,
+ &np->np_sockaddr, tpg_np, type);
+ if (IS_ERR(tpg_np_new)) {
+ rc = PTR_ERR(tpg_np_new);
+ goto out;
+ }
+ } else {
+ tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
+ if (tpg_np_new) {
+ rc = iscsit_tpg_del_network_portal(tpg, tpg_np_new);
+ if (rc < 0)
+ goto out;
+ }
+ }
+
+ iscsit_put_tpg(tpg);
+ return count;
+out:
+ iscsit_put_tpg(tpg);
+ return rc;
+}
+
+static ssize_t lio_target_np_iser_show(struct config_item *item, char *page)
+{
+ return lio_target_np_driver_show(item, page, ISCSI_INFINIBAND);
+}
+
+static ssize_t lio_target_np_iser_store(struct config_item *item,
+ const char *page, size_t count)
+{
+ return lio_target_np_driver_store(item, page, count,
+ ISCSI_INFINIBAND, "ib_isert");
+}
+CONFIGFS_ATTR(lio_target_np_, iser);
+
+static ssize_t lio_target_np_cxgbit_show(struct config_item *item, char *page)
+{
+ return lio_target_np_driver_show(item, page, ISCSI_CXGBIT);
+}
+
+static ssize_t lio_target_np_cxgbit_store(struct config_item *item,
+ const char *page, size_t count)
+{
+ return lio_target_np_driver_store(item, page, count,
+ ISCSI_CXGBIT, "cxgbit");
+}
+CONFIGFS_ATTR(lio_target_np_, cxgbit);
+
+static struct configfs_attribute *lio_target_portal_attrs[] = {
+ &lio_target_np_attr_iser,
+ &lio_target_np_attr_cxgbit,
+ NULL,
+};
+
+/* Stop items for lio_target_portal_cit */
+
+/* Start items for lio_target_np_cit */
+
+#define MAX_PORTAL_LEN 256
+
+static struct se_tpg_np *lio_target_call_addnptotpg(
+ struct se_portal_group *se_tpg,
+ struct config_group *group,
+ const char *name)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np;
+ char *str, *str2, *ip_str, *port_str;
+ struct sockaddr_storage sockaddr = { };
+ 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);
+ }
+ snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
+
+ str = strstr(buf, "[");
+ if (str) {
+ str2 = strstr(str, "]");
+ if (!str2) {
+ pr_err("Unable to locate trailing \"]\""
+ " in IPv6 iSCSI network portal address\n");
+ return ERR_PTR(-EINVAL);
+ }
+
+ ip_str = str + 1; /* Skip over leading "[" */
+ *str2 = '\0'; /* Terminate the unbracketed IPv6 address */
+ str2++; /* Skip over the \0 */
+
+ port_str = strstr(str2, ":");
+ if (!port_str) {
+ pr_err("Unable to locate \":port\""
+ " in IPv6 iSCSI network portal address\n");
+ return ERR_PTR(-EINVAL);
+ }
+ *port_str = '\0'; /* Terminate string for IP */
+ port_str++; /* Skip over ":" */
+ } else {
+ 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 = inet_pton_with_scope(&init_net, AF_UNSPEC, ip_str,
+ port_str, &sockaddr);
+ if (ret) {
+ pr_err("malformed ip/port passed: %s\n", name);
+ return ERR_PTR(ret);
+ }
+
+ tpg = to_iscsi_tpg(se_tpg);
+ ret = iscsit_get_tpg(tpg);
+ if (ret < 0)
+ return ERR_PTR(-EINVAL);
+
+ pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
+ " PORTAL: %s\n",
+ config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
+ tpg->tpgt, name);
+ /*
+ * Assume ISCSI_TCP by default. Other network portals for other
+ * iSCSI fabrics:
+ *
+ * Traditional iSCSI over SCTP (initial support)
+ * iSER/TCP (TODO, hardware available)
+ * iSER/SCTP (TODO, software emulation with osc-iwarp)
+ * iSER/IB (TODO, hardware available)
+ *
+ * can be enabled with attributes under
+ * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
+ *
+ */
+ tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, NULL,
+ ISCSI_TCP);
+ if (IS_ERR(tpg_np)) {
+ iscsit_put_tpg(tpg);
+ return ERR_CAST(tpg_np);
+ }
+ pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
+
+ iscsit_put_tpg(tpg);
+ return &tpg_np->se_tpg_np;
+}
+
+static void lio_target_call_delnpfromtpg(
+ struct se_tpg_np *se_tpg_np)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tpg_np *tpg_np;
+ struct se_portal_group *se_tpg;
+ int ret;
+
+ tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
+ tpg = tpg_np->tpg;
+ ret = iscsit_get_tpg(tpg);
+ if (ret < 0)
+ return;
+
+ se_tpg = &tpg->tpg_se_tpg;
+ pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
+ " PORTAL: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
+ tpg->tpgt, &tpg_np->tpg_np->np_sockaddr);
+
+ ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
+ if (ret < 0)
+ goto out;
+
+ pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
+out:
+ iscsit_put_tpg(tpg);
+}
+
+/* End items for lio_target_np_cit */
+
+/* Start items for lio_target_nacl_attrib_cit */
+
+#define ISCSI_NACL_ATTR(name) \
+static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\
+ char *page) \
+{ \
+ struct se_node_acl *se_nacl = attrib_to_nacl(item); \
+ struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); \
+ return sprintf(page, "%u\n", nacl->node_attrib.name); \
+} \
+ \
+static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\
+ const char *page, size_t count) \
+{ \
+ struct se_node_acl *se_nacl = attrib_to_nacl(item); \
+ struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); \
+ u32 val; \
+ int ret; \
+ \
+ ret = kstrtou32(page, 0, &val); \
+ if (ret) \
+ return ret; \
+ ret = iscsit_na_##name(nacl, val); \
+ if (ret < 0) \
+ return ret; \
+ \
+ return count; \
+} \
+ \
+CONFIGFS_ATTR(iscsi_nacl_attrib_, name)
+
+ISCSI_NACL_ATTR(dataout_timeout);
+ISCSI_NACL_ATTR(dataout_timeout_retries);
+ISCSI_NACL_ATTR(default_erl);
+ISCSI_NACL_ATTR(nopin_timeout);
+ISCSI_NACL_ATTR(nopin_response_timeout);
+ISCSI_NACL_ATTR(random_datain_pdu_offsets);
+ISCSI_NACL_ATTR(random_datain_seq_offsets);
+ISCSI_NACL_ATTR(random_r2t_offsets);
+
+static ssize_t iscsi_nacl_attrib_authentication_show(struct config_item *item,
+ char *page)
+{
+ struct se_node_acl *se_nacl = attrib_to_nacl(item);
+ struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl);
+
+ return sprintf(page, "%d\n", nacl->node_attrib.authentication);
+}
+
+static ssize_t iscsi_nacl_attrib_authentication_store(struct config_item *item,
+ const char *page, size_t count)
+{
+ struct se_node_acl *se_nacl = attrib_to_nacl(item);
+ struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl);
+ s32 val;
+ int ret;
+
+ ret = kstrtos32(page, 0, &val);
+ if (ret)
+ return ret;
+ if (val != 0 && val != 1 && val != NA_AUTHENTICATION_INHERITED)
+ return -EINVAL;
+
+ nacl->node_attrib.authentication = val;
+
+ return count;
+}
+
+CONFIGFS_ATTR(iscsi_nacl_attrib_, authentication);
+
+static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
+ &iscsi_nacl_attrib_attr_dataout_timeout,
+ &iscsi_nacl_attrib_attr_dataout_timeout_retries,
+ &iscsi_nacl_attrib_attr_default_erl,
+ &iscsi_nacl_attrib_attr_nopin_timeout,
+ &iscsi_nacl_attrib_attr_nopin_response_timeout,
+ &iscsi_nacl_attrib_attr_random_datain_pdu_offsets,
+ &iscsi_nacl_attrib_attr_random_datain_seq_offsets,
+ &iscsi_nacl_attrib_attr_random_r2t_offsets,
+ &iscsi_nacl_attrib_attr_authentication,
+ NULL,
+};
+
+/* End items for lio_target_nacl_attrib_cit */
+
+/* Start items for lio_target_nacl_auth_cit */
+
+#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
+static ssize_t __iscsi_##prefix##_##name##_show( \
+ struct iscsi_node_acl *nacl, \
+ char *page) \
+{ \
+ struct iscsi_node_auth *auth = &nacl->node_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
+} \
+ \
+static ssize_t __iscsi_##prefix##_##name##_store( \
+ struct iscsi_node_acl *nacl, \
+ const char *page, \
+ size_t count) \
+{ \
+ struct iscsi_node_auth *auth = &nacl->node_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ if (count >= sizeof(auth->name)) \
+ return -EINVAL; \
+ snprintf(auth->name, sizeof(auth->name), "%s", page); \
+ if (!strncmp("NULL", auth->name, 4)) \
+ auth->naf_flags &= ~flags; \
+ else \
+ auth->naf_flags |= flags; \
+ \
+ if ((auth->naf_flags & NAF_USERID_IN_SET) && \
+ (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
+ auth->authenticate_target = 1; \
+ else \
+ auth->authenticate_target = 0; \
+ \
+ return count; \
+}
+
+#define DEF_NACL_AUTH_STR(name, flags) \
+ __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
+static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
+ char *page) \
+{ \
+ struct se_node_acl *nacl = auth_to_nacl(item); \
+ return __iscsi_nacl_auth_##name##_show(to_iscsi_nacl(nacl), page); \
+} \
+static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \
+ const char *page, size_t count) \
+{ \
+ struct se_node_acl *nacl = auth_to_nacl(item); \
+ return __iscsi_nacl_auth_##name##_store(to_iscsi_nacl(nacl), \
+ page, count); \
+} \
+ \
+CONFIGFS_ATTR(iscsi_nacl_auth_, name)
+
+/*
+ * One-way authentication userid
+ */
+DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
+DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
+DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
+DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
+
+#define __DEF_NACL_AUTH_INT(prefix, name) \
+static ssize_t __iscsi_##prefix##_##name##_show( \
+ struct iscsi_node_acl *nacl, \
+ char *page) \
+{ \
+ struct iscsi_node_auth *auth = &nacl->node_auth; \
+ \
+ if (!capable(CAP_SYS_ADMIN)) \
+ return -EPERM; \
+ \
+ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
+}
+
+#define DEF_NACL_AUTH_INT(name) \
+ __DEF_NACL_AUTH_INT(nacl_auth, name) \
+static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
+ char *page) \
+{ \
+ struct se_node_acl *nacl = auth_to_nacl(item); \
+ return __iscsi_nacl_auth_##name##_show(to_iscsi_nacl(nacl), page); \
+} \
+ \
+CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name)
+
+DEF_NACL_AUTH_INT(authenticate_target);
+
+static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
+ &iscsi_nacl_auth_attr_userid,
+ &iscsi_nacl_auth_attr_password,
+ &iscsi_nacl_auth_attr_authenticate_target,
+ &iscsi_nacl_auth_attr_userid_mutual,
+ &iscsi_nacl_auth_attr_password_mutual,
+ NULL,
+};
+
+/* End items for lio_target_nacl_auth_cit */
+
+/* Start items for lio_target_nacl_param_cit */
+
+#define ISCSI_NACL_PARAM(name) \
+static ssize_t iscsi_nacl_param_##name##_show(struct config_item *item, \
+ char *page) \
+{ \
+ struct se_node_acl *se_nacl = param_to_nacl(item); \
+ struct iscsit_session *sess; \
+ struct se_session *se_sess; \
+ ssize_t rb; \
+ \
+ spin_lock_bh(&se_nacl->nacl_sess_lock); \
+ se_sess = se_nacl->nacl_sess; \
+ if (!se_sess) { \
+ rb = snprintf(page, PAGE_SIZE, \
+ "No Active iSCSI Session\n"); \
+ } else { \
+ sess = se_sess->fabric_sess_ptr; \
+ rb = snprintf(page, PAGE_SIZE, "%u\n", \
+ (u32)sess->sess_ops->name); \
+ } \
+ spin_unlock_bh(&se_nacl->nacl_sess_lock); \
+ \
+ return rb; \
+} \
+ \
+CONFIGFS_ATTR_RO(iscsi_nacl_param_, name)
+
+ISCSI_NACL_PARAM(MaxConnections);
+ISCSI_NACL_PARAM(InitialR2T);
+ISCSI_NACL_PARAM(ImmediateData);
+ISCSI_NACL_PARAM(MaxBurstLength);
+ISCSI_NACL_PARAM(FirstBurstLength);
+ISCSI_NACL_PARAM(DefaultTime2Wait);
+ISCSI_NACL_PARAM(DefaultTime2Retain);
+ISCSI_NACL_PARAM(MaxOutstandingR2T);
+ISCSI_NACL_PARAM(DataPDUInOrder);
+ISCSI_NACL_PARAM(DataSequenceInOrder);
+ISCSI_NACL_PARAM(ErrorRecoveryLevel);
+
+static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
+ &iscsi_nacl_param_attr_MaxConnections,
+ &iscsi_nacl_param_attr_InitialR2T,
+ &iscsi_nacl_param_attr_ImmediateData,
+ &iscsi_nacl_param_attr_MaxBurstLength,
+ &iscsi_nacl_param_attr_FirstBurstLength,
+ &iscsi_nacl_param_attr_DefaultTime2Wait,
+ &iscsi_nacl_param_attr_DefaultTime2Retain,
+ &iscsi_nacl_param_attr_MaxOutstandingR2T,
+ &iscsi_nacl_param_attr_DataPDUInOrder,
+ &iscsi_nacl_param_attr_DataSequenceInOrder,
+ &iscsi_nacl_param_attr_ErrorRecoveryLevel,
+ NULL,
+};
+
+/* End items for lio_target_nacl_param_cit */
+
+/* Start items for lio_target_acl_cit */
+
+static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page)
+{
+ struct se_node_acl *se_nacl = acl_to_nacl(item);
+ struct iscsit_session *sess;
+ struct iscsit_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 += sysfs_emit_at(page, rb, "No active iSCSI Session for Initiator"
+ " Endpoint: %s\n", se_nacl->initiatorname);
+ } else {
+ sess = se_sess->fabric_sess_ptr;
+
+ rb += sysfs_emit_at(page, rb, "InitiatorName: %s\n",
+ sess->sess_ops->InitiatorName);
+ rb += sysfs_emit_at(page, rb, "InitiatorAlias: %s\n",
+ sess->sess_ops->InitiatorAlias);
+
+ rb += sysfs_emit_at(page, rb,
+ "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ",
+ sess->sid, sess->isid, sess->tsih);
+ rb += sysfs_emit_at(page, rb, "SessionType: %s\n",
+ (sess->sess_ops->SessionType) ?
+ "Discovery" : "Normal");
+ rb += sysfs_emit_at(page, rb, "Session State: ");
+ switch (sess->session_state) {
+ case TARG_SESS_STATE_FREE:
+ rb += sysfs_emit_at(page, rb, "TARG_SESS_FREE\n");
+ break;
+ case TARG_SESS_STATE_ACTIVE:
+ rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_ACTIVE\n");
+ break;
+ case TARG_SESS_STATE_LOGGED_IN:
+ rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_LOGGED_IN\n");
+ break;
+ case TARG_SESS_STATE_FAILED:
+ rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_FAILED\n");
+ break;
+ case TARG_SESS_STATE_IN_CONTINUE:
+ rb += sysfs_emit_at(page, rb, "TARG_SESS_STATE_IN_CONTINUE\n");
+ break;
+ default:
+ rb += sysfs_emit_at(page, rb, "ERROR: Unknown Session"
+ " State!\n");
+ break;
+ }
+
+ rb += sysfs_emit_at(page, rb, "---------------------[iSCSI Session"
+ " Values]-----------------------\n");
+ rb += sysfs_emit_at(page, rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
+ " : MaxCmdSN : ITT : TTT\n");
+ max_cmd_sn = (u32) atomic_read(&sess->max_cmd_sn);
+ rb += sysfs_emit_at(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 += sysfs_emit_at(page, rb, "----------------------[iSCSI"
+ " Connections]-------------------------\n");
+
+ spin_lock(&sess->conn_lock);
+ list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
+ rb += sysfs_emit_at(page, rb, "CID: %hu Connection"
+ " State: ", conn->cid);
+ switch (conn->conn_state) {
+ case TARG_CONN_STATE_FREE:
+ rb += sysfs_emit_at(page, rb,
+ "TARG_CONN_STATE_FREE\n");
+ break;
+ case TARG_CONN_STATE_XPT_UP:
+ rb += sysfs_emit_at(page, rb,
+ "TARG_CONN_STATE_XPT_UP\n");
+ break;
+ case TARG_CONN_STATE_IN_LOGIN:
+ rb += sysfs_emit_at(page, rb,
+ "TARG_CONN_STATE_IN_LOGIN\n");
+ break;
+ case TARG_CONN_STATE_LOGGED_IN:
+ rb += sysfs_emit_at(page, rb,
+ "TARG_CONN_STATE_LOGGED_IN\n");
+ break;
+ case TARG_CONN_STATE_IN_LOGOUT:
+ rb += sysfs_emit_at(page, rb,
+ "TARG_CONN_STATE_IN_LOGOUT\n");
+ break;
+ case TARG_CONN_STATE_LOGOUT_REQUESTED:
+ rb += sysfs_emit_at(page, rb,
+ "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
+ break;
+ case TARG_CONN_STATE_CLEANUP_WAIT:
+ rb += sysfs_emit_at(page, rb,
+ "TARG_CONN_STATE_CLEANUP_WAIT\n");
+ break;
+ default:
+ rb += sysfs_emit_at(page, rb,
+ "ERROR: Unknown Connection State!\n");
+ break;
+ }
+
+ rb += sysfs_emit_at(page, rb, " Address %pISc %s", &conn->login_sockaddr,
+ (conn->network_transport == ISCSI_TCP) ?
+ "TCP" : "SCTP");
+ rb += sysfs_emit_at(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 = to_iscsi_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 = to_iscsi_nacl(se_nacl);
+
+ 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 = to_iscsi_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 = to_iscsi_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 = to_iscsi_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 = to_iscsi_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 = to_iscsi_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 = to_iscsi_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 = to_iscsi_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_dynamic_sessions_show(struct config_item *item,
+ char *page)
+{
+ return target_show_dynamic_sessions(to_tpg(item), page);
+}
+
+CONFIGFS_ATTR_RO(lio_target_tpg_, dynamic_sessions);
+
+static struct configfs_attribute *lio_target_tpg_attrs[] = {
+ &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 int lio_target_tiqn_enabletpg(struct se_portal_group *se_tpg,
+ bool enable)
+{
+ struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg);
+ int ret;
+
+ ret = iscsit_get_tpg(tpg);
+ if (ret < 0)
+ return -EINVAL;
+
+ if (enable) {
+ 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 0;
+out:
+ iscsit_put_tpg(tpg);
+ return -EINVAL;
+}
+
+static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
+{
+ struct iscsi_portal_group *tpg;
+ struct iscsi_tiqn *tiqn;
+
+ tpg = to_iscsi_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 ssize_t lio_target_wwn_cpus_allowed_list_show(
+ struct config_item *item, char *page)
+{
+ return sprintf(page, "%*pbl\n",
+ cpumask_pr_args(iscsit_global->allowed_cpumask));
+}
+
+static ssize_t lio_target_wwn_cpus_allowed_list_store(
+ struct config_item *item, const char *page, size_t count)
+{
+ int ret = -ENOMEM;
+ char *orig;
+ cpumask_var_t new_allowed_cpumask;
+
+ if (!zalloc_cpumask_var(&new_allowed_cpumask, GFP_KERNEL))
+ goto out;
+
+ orig = kstrdup(page, GFP_KERNEL);
+ if (!orig)
+ goto out_free_cpumask;
+
+ ret = cpulist_parse(orig, new_allowed_cpumask);
+ if (!ret)
+ cpumask_copy(iscsit_global->allowed_cpumask,
+ new_allowed_cpumask);
+
+ kfree(orig);
+out_free_cpumask:
+ free_cpumask_var(new_allowed_cpumask);
+out:
+ return ret ? ret : count;
+}
+
+CONFIGFS_ATTR(lio_target_wwn_, cpus_allowed_list);
+
+static struct configfs_attribute *lio_target_wwn_attrs[] = {
+ &lio_target_wwn_attr_lio_version,
+ &lio_target_wwn_attr_cpus_allowed_list,
+ 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 int iscsi_get_cmd_state(struct se_cmd *se_cmd)
+{
+ struct iscsit_cmd *cmd = container_of(se_cmd, struct iscsit_cmd, se_cmd);
+
+ return cmd->i_state;
+}
+
+static u32 lio_sess_get_index(struct se_session *se_sess)
+{
+ struct iscsit_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 iscsit_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 iscsit_cmd *cmd = container_of(se_cmd, struct iscsit_cmd, se_cmd);
+ struct iscsit_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 iscsit_cmd *cmd = container_of(se_cmd, struct iscsit_cmd, se_cmd);
+ struct iscsit_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_queue_status(struct se_cmd *se_cmd)
+{
+ struct iscsit_cmd *cmd = container_of(se_cmd, struct iscsit_cmd, se_cmd);
+ struct iscsit_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 iscsit_cmd *cmd = container_of(se_cmd, struct iscsit_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 iscsit_cmd *cmd = container_of(se_cmd, struct iscsit_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)
+{
+ return to_iscsi_tpg(se_tpg)->tpg_tiqn->tiqn;
+}
+
+static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
+{
+ return to_iscsi_tpg(se_tpg)->tpgt;
+}
+
+static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
+{
+ return to_iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth;
+}
+
+static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
+{
+ return to_iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls;
+}
+
+static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
+{
+ return to_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 to_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 to_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 (!to_iscsi_tpg(se_tpg)->tpg_attrib.t10_pi)
+ return 0;
+ return to_iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type;
+}
+
+/*
+ * This function calls iscsit_inc_session_usage_count() on the
+ * struct iscsit_session in question.
+ */
+static void lio_tpg_close_session(struct se_session *se_sess)
+{
+ struct iscsit_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) ||
+ atomic_read(&sess->session_close) ||
+ (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
+ spin_unlock(&sess->conn_lock);
+ spin_unlock_bh(&se_tpg->session_lock);
+ return;
+ }
+ iscsit_inc_session_usage_count(sess);
+ atomic_set(&sess->session_reinstatement, 1);
+ atomic_set(&sess->session_fall_back_to_erl0, 1);
+ atomic_set(&sess->session_close, 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_dec_session_usage_count(sess);
+}
+
+static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
+{
+ return to_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 = to_iscsi_nacl(se_acl);
+ struct se_portal_group *se_tpg = se_acl->se_tpg;
+ struct iscsi_portal_group *tpg = to_iscsi_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 iscsit_cmd *cmd = container_of(se_cmd, struct iscsit_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,
+ .fabric_alias = "iscsi",
+ .fabric_name = "iSCSI",
+ .node_acl_size = sizeof(struct iscsi_node_acl),
+ .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,
+ .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_enable_tpg = lio_target_tiqn_enabletpg,
+ .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,
+
+ .write_pending_must_be_called = true,
+};