From f8e471f9eb9068bf5ac8c6a04da74329a442f75a Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 6 Mar 2015 20:34:32 -0800 Subject: target: Add target_show_dynamic_sessions attribute helper This patch adds a new helper function that can be used by fabric driver TPG attributes for dumping the list of active sessions with a dynamically generated se_node_acl. (generate_node_acl=1). It prints one se_node_acl->initiatorname per line, up to PAGE_SIZE which is due to the current limitiation of single page attribute output within sysfs and configfs code. Note that if a session is referencing a explicit NodeACL, the InitiatorName will not appear within dynamic_sessions output. Reported-by: Andy Grover Signed-off-by: Nicholas Bellinger --- include/target/target_core_fabric.h | 1 + include/target/target_core_fabric_configfs.h | 5 +++++ 2 files changed, 6 insertions(+) (limited to 'include/target') diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h index 22a4e98eec80..2f4a2505db4c 100644 --- a/include/target/target_core_fabric.h +++ b/include/target/target_core_fabric.h @@ -95,6 +95,7 @@ void transport_register_session(struct se_portal_group *, struct se_node_acl *, struct se_session *, void *); void target_get_session(struct se_session *); void target_put_session(struct se_session *); +ssize_t target_show_dynamic_sessions(struct se_portal_group *, char *); void transport_free_session(struct se_session *); void target_put_nacl(struct se_node_acl *); void transport_deregister_session_configfs(struct se_session *); diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h index b32a14905cfa..7a0649c09e79 100644 --- a/include/target/target_core_fabric_configfs.h +++ b/include/target/target_core_fabric_configfs.h @@ -90,6 +90,11 @@ static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \ _fabric##_tpg_store_##_name); +#define TF_TPG_BASE_ATTR_RO(_fabric, _name) \ +static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + _fabric##_tpg_show_##_name); + CONFIGFS_EATTR_STRUCT(target_fabric_wwn, target_fabric_configfs); #define TF_WWN_ATTR(_fabric, _name, _mode) \ static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \ -- cgit v1.2.3