target: Add se_portal_group->tpg_auth_group

This patch adds an optional /auth/ configfs group to TPG context that
can be used by fabrics like iscsi-target for TPG demo-mode
authentication.

Cc: Dax Kelson <dkelson@gurulabs.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

3 files changed, 14 insertions, 1 deletions

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 9fd7a60f47f0..d92ec6765f5d 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -795,11 +795,12 @@ struct se_portal_group {
         struct target_core_fabric_ops *se_tpg_tfo;
         struct se_wwn           *se_tpg_wwn;
         struct config_group     tpg_group;
-        struct config_group     *tpg_default_groups[6];
+        struct config_group     *tpg_default_groups[7];
         struct config_group     tpg_lun_group;
         struct config_group     tpg_np_group;
         struct config_group     tpg_acl_group;
         struct config_group     tpg_attrib_group;
+        struct config_group     tpg_auth_group;
         struct config_group     tpg_param_group;
 };
 
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h
index 612509592ffd..713c5004f4ae 100644
--- a/include/target/target_core_configfs.h
+++ b/include/target/target_core_configfs.h
@@ -23,6 +23,7 @@ struct target_fabric_configfs_template {
         struct config_item_type tfc_tpg_np_cit;
         struct config_item_type tfc_tpg_np_base_cit;
         struct config_item_type tfc_tpg_attrib_cit;
+        struct config_item_type tfc_tpg_auth_cit;
         struct config_item_type tfc_tpg_param_cit;
         struct config_item_type tfc_tpg_nacl_cit;
         struct config_item_type tfc_tpg_nacl_base_cit;
diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h
index a26fb7586a09..b32a14905cfa 100644
--- a/include/target/target_core_fabric_configfs.h
+++ b/include/target/target_core_fabric_configfs.h
@@ -62,6 +62,17 @@ static struct target_fabric_tpg_attrib_attribute _fabric##_tpg_attrib_##_name =
         _fabric##_tpg_attrib_show_##_name,                              \
         _fabric##_tpg_attrib_store_##_name);
 
+CONFIGFS_EATTR_STRUCT(target_fabric_tpg_auth, se_portal_group);
+#define TF_TPG_AUTH_ATTR(_fabric, _name, _mode)                         \
+static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \
+        __CONFIGFS_EATTR(_name, _mode,                                  \
+        _fabric##_tpg_auth_show_##_name,                                \
+        _fabric##_tpg_auth_store_##_name);
+
+#define TF_TPG_AUTH_ATTR_RO(_fabric, _name)                             \
+static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \
+        __CONFIGFS_EATTR_RO(_name,                                      \
+        _fabric##_tpg_auth_show_##_name);
 
 CONFIGFS_EATTR_STRUCT(target_fabric_tpg_param, se_portal_group);
 #define TF_TPG_PARAM_ATTR(_fabric, _name, _mode)                        \