[NetLabel]: consolidate the struct socket/sock handling to just struct sock

The current NetLabel code has some redundant APIs which allow both
"struct socket" and "struct sock" types to be used; this may have made
sense at some point but it is wasteful now.  Remove the functions that
operate on sockets and convert the callers.  Not only does this make
the code smaller and more consistent but it pushes the locking burden
up to the caller which can be more intelligent about the locks.  Also,
perform the same conversion (socket to sock) on the SELinux/NetLabel
glue code where it make sense.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 9 insertions, 25 deletions

diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h
index 4f90f55..a6bb945 100644
--- a/include/net/cipso_ipv4.h
+++ b/include/net/cipso_ipv4.h
@@ -203,12 +203,10 @@ static inline int cipso_v4_cache_add(const struct sk_buff *skb,
 
 #ifdef CONFIG_NETLABEL
 void cipso_v4_error(struct sk_buff *skb, int error, u32 gateway);
-int cipso_v4_socket_setattr(const struct socket *sock,
-			    const struct cipso_v4_doi *doi_def,
-			    const struct netlbl_lsm_secattr *secattr);
+int cipso_v4_sock_setattr(struct sock *sk,
+			  const struct cipso_v4_doi *doi_def,
+			  const struct netlbl_lsm_secattr *secattr);
 int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr);
-int cipso_v4_socket_getattr(const struct socket *sock,
-			    struct netlbl_lsm_secattr *secattr);
 int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
 			    struct netlbl_lsm_secattr *secattr);
 int cipso_v4_validate(unsigned char **option);
@@ -220,9 +218,9 @@ static inline void cipso_v4_error(struct sk_buff *skb,
 	return;
 }
 
-static inline int cipso_v4_socket_setattr(const struct socket *sock,
-				  const struct cipso_v4_doi *doi_def,
-				  const struct netlbl_lsm_secattr *secattr)
+static inline int cipso_v4_sock_setattr(struct sock *sk,
+				      const struct cipso_v4_doi *doi_def,
+				      const struct netlbl_lsm_secattr *secattr)
 {
 	return -ENOSYS;
 }
@@ -233,12 +231,6 @@ static inline int cipso_v4_sock_getattr(struct sock *sk,
 	return -ENOSYS;
 }
 
-static inline int cipso_v4_socket_getattr(const struct socket *sock,
-					  struct netlbl_lsm_secattr *secattr)
-{
-	return -ENOSYS;
-}
-
 static inline int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
 					  struct netlbl_lsm_secattr *secattr)
 {
diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index 83da7e1..9b7d6f2 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -332,17 +332,15 @@ static inline int netlbl_secattr_catmap_setrng(
  */
 
 #ifdef CONFIG_NETLABEL
-int netlbl_socket_setattr(const struct socket *sock,
-			  const struct netlbl_lsm_secattr *secattr);
+int netlbl_sock_setattr(struct sock *sk,
+			const struct netlbl_lsm_secattr *secattr);
 int netlbl_sock_getattr(struct sock *sk,
 			struct netlbl_lsm_secattr *secattr);
-int netlbl_socket_getattr(const struct socket *sock,
-			  struct netlbl_lsm_secattr *secattr);
 int netlbl_skbuff_getattr(const struct sk_buff *skb,
 			  struct netlbl_lsm_secattr *secattr);
 void netlbl_skbuff_err(struct sk_buff *skb, int error);
 #else
-static inline int netlbl_socket_setattr(const struct socket *sock,
+static inline int netlbl_sock_setattr(struct sock *sk,
 				     const struct netlbl_lsm_secattr *secattr)
 {
 	return -ENOSYS;
@@ -354,12 +352,6 @@ static inline int netlbl_sock_getattr(struct sock *sk,
 	return -ENOSYS;
 }
 
-static inline int netlbl_socket_getattr(const struct socket *sock,
-					struct netlbl_lsm_secattr *secattr)
-{
-	return -ENOSYS;
-}
-
 static inline int netlbl_skbuff_getattr(const struct sk_buff *skb,
 					struct netlbl_lsm_secattr *secattr)
 {