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Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c41
1 files changed, 16 insertions, 25 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index cff778b23a7..5b90b369ccb 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -69,7 +69,8 @@
#include <linux/scatterlist.h>
static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb);
-static void tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req);
+static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *req);
static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb);
@@ -748,7 +749,7 @@ static int tcp_v6_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp,
ipv6_addr_copy(&bp->saddr, saddr);
ipv6_addr_copy(&bp->daddr, daddr);
bp->protocol = cpu_to_be32(IPPROTO_TCP);
- bp->len = cpu_to_be16(nbytes);
+ bp->len = cpu_to_be32(nbytes);
sg_init_one(&sg, bp, sizeof(*bp));
return crypto_hash_update(&hp->md5_desc, &sg, sizeof(*bp));
@@ -849,28 +850,17 @@ static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb)
hash_expected = tcp_v6_md5_do_lookup(sk, &ip6h->saddr);
hash_location = tcp_parse_md5sig_option(th);
- /* do we have a hash as expected? */
- if (!hash_expected) {
- if (!hash_location)
- return 0;
- if (net_ratelimit()) {
- printk(KERN_INFO "MD5 Hash NOT expected but found "
- "(" NIP6_FMT ", %u)->"
- "(" NIP6_FMT ", %u)\n",
- NIP6(ip6h->saddr), ntohs(th->source),
- NIP6(ip6h->daddr), ntohs(th->dest));
- }
+ /* We've parsed the options - do we have a hash? */
+ if (!hash_expected && !hash_location)
+ return 0;
+
+ if (hash_expected && !hash_location) {
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPMD5NOTFOUND);
return 1;
}
- if (!hash_location) {
- if (net_ratelimit()) {
- printk(KERN_INFO "MD5 Hash expected but NOT found "
- "(" NIP6_FMT ", %u)->"
- "(" NIP6_FMT ", %u)\n",
- NIP6(ip6h->saddr), ntohs(th->source),
- NIP6(ip6h->daddr), ntohs(th->dest));
- }
+ if (!hash_expected && hash_location) {
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPMD5UNEXPECTED);
return 1;
}
@@ -1105,8 +1095,8 @@ static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32
*topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
(TCPOPT_MD5SIG << 8) | TCPOLEN_MD5SIG);
tcp_v6_md5_hash_hdr((__u8 *)topt, key,
- &ipv6_hdr(skb)->daddr,
- &ipv6_hdr(skb)->saddr, t1);
+ &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr, t1);
}
#endif
@@ -1149,10 +1139,11 @@ static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb)
inet_twsk_put(tw);
}
-static void tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req)
+static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *req)
{
tcp_v6_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, req->rcv_wnd, req->ts_recent,
- tcp_v6_md5_do_lookup(skb->sk, &ipv6_hdr(skb)->daddr));
+ tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr));
}