[NETFILTER]: Avoid skb_copy/pskb_copy/skb_realloc_headroom

[safe/jmp/linux-2.6] / net / ipv6 / tcp_ipv6.c

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index f10f368..a07b59c 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -56,7 +56,6 @@
 #include <net/inet_ecn.h>
 #include <net/protocol.h>
 #include <net/xfrm.h>
-#include <net/addrconf.h>
 #include <net/snmp.h>
 #include <net/dsfield.h>
 #include <net/timewait_sock.h>
@@ -540,7 +539,7 @@ static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk,
 
        for (i = 0; i < tp->md5sig_info->entries6; i++) {
                if (ipv6_addr_cmp(&tp->md5sig_info->keys6[i].addr, addr) == 0)
-                       return (struct tcp_md5sig_key *)&tp->md5sig_info->keys6[i];
+                       return &tp->md5sig_info->keys6[i].base;
        }
        return NULL;
 }
@@ -568,9 +567,9 @@ static int tcp_v6_md5_do_add(struct sock *sk, struct in6_addr *peer,
        key = (struct tcp6_md5sig_key*) tcp_v6_md5_do_lookup(sk, peer);
        if (key) {
                /* modify existing entry - just update that one */
-               kfree(key->key);
-               key->key = newkey;
-               key->keylen = newkeylen;
+               kfree(key->base.key);
+               key->base.key = newkey;
+               key->base.keylen = newkeylen;
        } else {
                /* reallocate new list if current one is full. */
                if (!tp->md5sig_info) {
@@ -604,8 +603,8 @@ static int tcp_v6_md5_do_add(struct sock *sk, struct in6_addr *peer,
 
                ipv6_addr_copy(&tp->md5sig_info->keys6[tp->md5sig_info->entries6].addr,
                               peer);
-               tp->md5sig_info->keys6[tp->md5sig_info->entries6].key = newkey;
-               tp->md5sig_info->keys6[tp->md5sig_info->entries6].keylen = newkeylen;
+               tp->md5sig_info->keys6[tp->md5sig_info->entries6].base.key = newkey;
+               tp->md5sig_info->keys6[tp->md5sig_info->entries6].base.keylen = newkeylen;
 
                tp->md5sig_info->entries6++;
        }
@@ -627,7 +626,7 @@ static int tcp_v6_md5_do_del(struct sock *sk, struct in6_addr *peer)
        for (i = 0; i < tp->md5sig_info->entries6; i++) {
                if (ipv6_addr_cmp(&tp->md5sig_info->keys6[i].addr, peer) == 0) {
                        /* Free the key */
-                       kfree(tp->md5sig_info->keys6[i].key);
+                       kfree(tp->md5sig_info->keys6[i].base.key);
                        tp->md5sig_info->entries6--;
 
                        if (tp->md5sig_info->entries6 == 0) {
@@ -658,7 +657,7 @@ static void tcp_v6_clear_md5_list (struct sock *sk)
 
        if (tp->md5sig_info->entries6) {
                for (i = 0; i < tp->md5sig_info->entries6; i++)
-                       kfree(tp->md5sig_info->keys6[i].key);
+                       kfree(tp->md5sig_info->keys6[i].base.key);
                tp->md5sig_info->entries6 = 0;
                tcp_free_md5sig_pool();
        }
@@ -669,7 +668,7 @@ static void tcp_v6_clear_md5_list (struct sock *sk)
 
        if (tp->md5sig_info->entries4) {
                for (i = 0; i < tp->md5sig_info->entries4; i++)
-                       kfree(tp->md5sig_info->keys4[i].key);
+                       kfree(tp->md5sig_info->keys4[i].base.key);
                tp->md5sig_info->entries4 = 0;
                tcp_free_md5sig_pool();
        }
@@ -698,7 +697,7 @@ static int tcp_v6_parse_md5_keys (struct sock *sk, char __user *optval,
        if (!cmd.tcpm_keylen) {
                if (!tcp_sk(sk)->md5sig_info)
                        return -ENOENT;
-               if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_MAPPED)
+               if (ipv6_addr_v4mapped(&sin6->sin6_addr))
                        return tcp_v4_md5_do_del(sk, sin6->sin6_addr.s6_addr32[3]);
                return tcp_v6_md5_do_del(sk, &sin6->sin6_addr);
        }
@@ -721,7 +720,7 @@ static int tcp_v6_parse_md5_keys (struct sock *sk, char __user *optval,
        newkey = kmemdup(cmd.tcpm_key, cmd.tcpm_keylen, GFP_KERNEL);
        if (!newkey)
                return -ENOMEM;
-       if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_MAPPED) {
+       if (ipv6_addr_v4mapped(&sin6->sin6_addr)) {
                return tcp_v4_md5_do_add(sk, sin6->sin6_addr.s6_addr32[3],
                                         newkey, cmd.tcpm_keylen);
        }
@@ -2115,7 +2114,6 @@ struct proto tcpv6_prot = {
        .shutdown               = tcp_shutdown,
        .setsockopt             = tcp_setsockopt,
        .getsockopt             = tcp_getsockopt,
-       .sendmsg                = tcp_sendmsg,
        .recvmsg                = tcp_recvmsg,
        .backlog_rcv            = tcp_v6_do_rcv,
        .hash                   = tcp_v6_hash,