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authorNicholas Bellinger <nab@linux-iscsi.org>2013-06-19 18:48:51 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2013-07-03 19:44:32 -0700
commitc3e51442711d20ea1245bb6d260aa05593849e82 (patch)
tree746a99fb66a70c138247cac66655a7971bce07e0 /drivers/target/iscsi
parente4b512e7133f5243f080db8238c5be8434cbcdfd (diff)
downloadblackbird-op-linux-c3e51442711d20ea1245bb6d260aa05593849e82.tar.gz
blackbird-op-linux-c3e51442711d20ea1245bb6d260aa05593849e82.zip
iscsi-target: Add demo-mode TPG authentication context support
This patch adds a auth configfs group context following existing explict NodeACL and discovery auth within: /sys/kernel/config/target/iscsi/$TARGETNAME/$TPGT/auth/ This patch allows these attributes to be used for CHAP authentication an TPG is configured in demo-mode (generate_node_acl=1). Note this authentication information takes precedence over NodeACL authentication when struct se_node_acl->dynamic_node_acl is present. Cc: Dax Kelson <dkelson@gurulabs.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/iscsi')
-rw-r--r--drivers/target/iscsi/iscsi_target_configfs.c126
-rw-r--r--drivers/target/iscsi/iscsi_target_core.h1
-rw-r--r--drivers/target/iscsi/iscsi_target_nego.c13
3 files changed, 139 insertions, 1 deletions
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 13e9e715ad2e..e251849a6140 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1052,6 +1052,131 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
/* 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, PAGE_SIZE, "%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) \
@@ -1865,6 +1990,7 @@ int iscsi_target_register_configfs(void)
TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
+ TF_CIT_TMPL(fabric)->tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 3436a2cc1d35..391283c85313 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -813,6 +813,7 @@ struct iscsi_portal_group {
struct mutex tpg_access_lock;
struct mutex np_login_lock;
struct iscsi_tpg_attrib tpg_attrib;
+ struct iscsi_node_auth tpg_demo_auth;
/* Pointer to default list of iSCSI parameters for TPG */
struct iscsi_param_list *param_list;
struct iscsi_tiqn *tpg_tiqn;
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 7ad912060e21..6b5fc27a770d 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -112,6 +112,7 @@ static u32 iscsi_handle_authentication(
struct iscsi_session *sess = conn->sess;
struct iscsi_node_auth *auth;
struct iscsi_node_acl *iscsi_nacl;
+ struct iscsi_portal_group *iscsi_tpg;
struct se_node_acl *se_nacl;
if (!sess->sess_ops->SessionType) {
@@ -132,7 +133,17 @@ static u32 iscsi_handle_authentication(
return -1;
}
- auth = ISCSI_NODE_AUTH(iscsi_nacl);
+ if (se_nacl->dynamic_node_acl) {
+ iscsi_tpg = container_of(se_nacl->se_tpg,
+ struct iscsi_portal_group, tpg_se_tpg);
+
+ auth = &iscsi_tpg->tpg_demo_auth;
+ } else {
+ iscsi_nacl = container_of(se_nacl, struct iscsi_node_acl,
+ se_node_acl);
+
+ auth = ISCSI_NODE_AUTH(iscsi_nacl);
+ }
} else {
/*
* For SessionType=Discovery
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