tproxy: added const specifiers to udp lookup functions

The parameters for various UDP lookup functions were non-const, even though
they could be const. TProxy has some const references and instead of
downcasting it, I added const specifiers along the path.

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
Signed-off-by: KOVACS Krisztian <hidden@balabit.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 5acb356..33e3683 100644 (file)
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -122,8 +122,8 @@ static void udp_v6_rehash(struct sock *sk)
 
 static inline int compute_score(struct sock *sk, struct net *net,
                                unsigned short hnum,
-                               struct in6_addr *saddr, __be16 sport,
-                               struct in6_addr *daddr, __be16 dport,
+                               const struct in6_addr *saddr, __be16 sport,
+                               const struct in6_addr *daddr, __be16 dport,
                                int dif)
 {
        int score = -1;
@@ -239,8 +239,8 @@ exact_match:
 }
 
 static struct sock *__udp6_lib_lookup(struct net *net,
-                                     struct in6_addr *saddr, __be16 sport,
-                                     struct in6_addr *daddr, __be16 dport,
+                                     const struct in6_addr *saddr, __be16 sport,
+                                     const struct in6_addr *daddr, __be16 dport,
                                      int dif, struct udp_table *udptable)
 {
        struct sock *sk, *result;