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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2006-08-26 20:06:05 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-22 15:18:21 -0700
commit25030a7f9eeab2dcefff036469e0e2b4f956198f (patch)
tree923030c42f1c2bf4aa9cd851df13b95bd0fe542b /include/net/udp.h
parent6a28ec8cd0c6993a4ac0d52f4347f7ed077b5cac (diff)
downloadlinux-25030a7f9eeab2dcefff036469e0e2b4f956198f.tar.bz2
[UDP]: Unify UDPv4 and UDPv6 ->get_port()
This patch creates one common function which is called by udp_v4_get_port() and udp_v6_get_port(). As a result, * duplicated code is removed * udp_port_rover and local port lookup can now be removed from udp.h * further savings follow since the same function will be used by UDP-Litev4 and UDP-Litev6 In contrast to the patch sent in response to Yoshifujis comments (fixed by this variant), the code below also removes the EXPORT_SYMBOL(udp_port_rover), since udp_port_rover can now remain local to net/ipv4/udp.c. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/udp.h')
-rw-r--r--include/net/udp.h18
1 files changed, 2 insertions, 16 deletions
diff --git a/include/net/udp.h b/include/net/udp.h
index 766fba1369ce..c490a0f662ac 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -30,25 +30,9 @@
#define UDP_HTABLE_SIZE 128
-/* udp.c: This needs to be shared by v4 and v6 because the lookup
- * and hashing code needs to work with different AF's yet
- * the port space is shared.
- */
extern struct hlist_head udp_hash[UDP_HTABLE_SIZE];
extern rwlock_t udp_hash_lock;
-extern int udp_port_rover;
-
-static inline int udp_lport_inuse(u16 num)
-{
- struct sock *sk;
- struct hlist_node *node;
-
- sk_for_each(sk, node, &udp_hash[num & (UDP_HTABLE_SIZE - 1)])
- if (inet_sk(sk)->num == num)
- return 1;
- return 0;
-}
/* Note: this must match 'valbool' in sock_setsockopt */
#define UDP_CSUM_NOXMIT 1
@@ -63,6 +47,8 @@ extern struct proto udp_prot;
struct sk_buff;
+extern int udp_get_port(struct sock *sk, unsigned short snum,
+ int (*saddr_cmp)(struct sock *, struct sock *));
extern void udp_err(struct sk_buff *, u32);
extern int udp_sendmsg(struct kiocb *iocb, struct sock *sk,