There may be more than one LSM that provides IPC data for auditing.
Change security_ipc_getsecid() to fill in a lsm_prop structure instead
of the u32 secid.  Change the name to security_ipc_getlsmprop() to
reflect the change.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Cc: audit@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Cc: selinux@vger.kernel.org
---
 include/linux/lsm_hook_defs.h |  4 ++--
 include/linux/security.h      | 22 +++++++++++++++++-----
 kernel/auditsc.c              |  5 ++---
 security/security.c           | 14 +++++++-------
 security/selinux/hooks.c      |  9 ++++++---
 security/smack/smack_lsm.c    | 16 +++++++++-------
 6 files changed, 43 insertions(+), 27 deletions(-)

diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index ed6ea0b1ec57..6ef2a345ea03 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h

@@ -256,8 +256,8 @@ LSM_HOOK(void, LSM_RET_VOID, task_to_inode, struct task_struct *p,
 	 struct inode *inode)
 LSM_HOOK(int, 0, userns_create, const struct cred *cred)
 LSM_HOOK(int, 0, ipc_permission, struct kern_ipc_perm *ipcp, short flag)
-LSM_HOOK(void, LSM_RET_VOID, ipc_getsecid, struct kern_ipc_perm *ipcp,
-	 u32 *secid)
+LSM_HOOK(void, LSM_RET_VOID, ipc_getlsmprop, struct kern_ipc_perm *ipcp,
+	 struct lsm_prop *prop)
 LSM_HOOK(int, 0, msg_msg_alloc_security, struct msg_msg *msg)
 LSM_HOOK(void, LSM_RET_VOID, msg_msg_free_security, struct msg_msg *msg)
 LSM_HOOK(int, 0, msg_queue_alloc_security, struct kern_ipc_perm *perm)

diff --git a/include/linux/security.h b/include/linux/security.h
index 5652baa4ca3c..15aef5f68e77 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h

@@ -289,6 +289,17 @@ static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
 	return kernel_load_data_str[id];
 }
 
+/**
+ * lsmprop_init - initialize a lsm_prop structure
+ * @prop: Pointer to the data to initialize
+ *
+ * Set all secid for all modules to the specified value.
+ */
+static inline void lsmprop_init(struct lsm_prop *prop)
+{
+	memset(prop, 0, sizeof(*prop));
+}
+
 #ifdef CONFIG_SECURITY
 
 /**

@@ -297,7 +308,7 @@ static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
  *
  * Returns true if there is a value set, false otherwise
  */
-static inline bool lsm_prop_is_set(struct lsm_prop *prop)
+static inline bool lsmprop_is_set(struct lsm_prop *prop)