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-rw-r--r--include/net/sock.h28
1 files changed, 23 insertions, 5 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index c945fba4f543..0a9a01a5b0d7 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -126,12 +126,17 @@ struct sock;
struct proto;
struct net;
+typedef __u32 __bitwise __portpair;
+typedef __u64 __bitwise __addrpair;
+
/**
* struct sock_common - minimal network layer representation of sockets
* @skc_daddr: Foreign IPv4 addr
* @skc_rcv_saddr: Bound local IPv4 addr
* @skc_hash: hash value used with various protocol lookup tables
* @skc_u16hashes: two u16 hash values used by UDP lookup tables
+ * @skc_dport: placeholder for inet_dport/tw_dport
+ * @skc_num: placeholder for inet_num/tw_num
* @skc_family: network address family
* @skc_state: Connection state
* @skc_reuse: %SO_REUSEADDR setting
@@ -149,16 +154,29 @@ struct net;
* for struct sock and struct inet_timewait_sock.
*/
struct sock_common {
- /* skc_daddr and skc_rcv_saddr must be grouped :
- * cf INET_MATCH() and INET_TW_MATCH()
+ /* skc_daddr and skc_rcv_saddr must be grouped on a 8 bytes aligned
+ * address on 64bit arches : cf INET_MATCH() and INET_TW_MATCH()
*/
- __be32 skc_daddr;
- __be32 skc_rcv_saddr;
-
+ union {
+ __addrpair skc_addrpair;
+ struct {
+ __be32 skc_daddr;
+ __be32 skc_rcv_saddr;
+ };
+ };
union {
unsigned int skc_hash;
__u16 skc_u16hashes[2];
};
+ /* skc_dport && skc_num must be grouped as well */
+ union {
+ __portpair skc_portpair;
+ struct {
+ __be16 skc_dport;
+ __u16 skc_num;
+ };
+ };
+
unsigned short skc_family;
volatile unsigned char skc_state;
unsigned char skc_reuse;