xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tcp: md5: remove request sock argument of calc_md5_hash()

Browse Source 
Since request and established sockets now have same base,
there is no need to pass two pointers to tcp_v4_md5_hash_skb()
or tcp_v6_md5_hash_skb()

Also add a const qualifier to their struct tcp_md5sig_key argument.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2015-03-24 15:58:55 -07:00
committed by David S. Miller
parent ff74e23f7e
commit 39f8e58e53
4 changed files with 28 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
net/ipv4/tcp_ipv4.c
View File

@@ -648,7 +648,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
if (!key)
goto release_sk1;
genhash = tcp_v4_md5_hash_skb(newhash, key, NULL, NULL, skb);
genhash = tcp_v4_md5_hash_skb(newhash, key, NULL, skb);
if (genhash || memcmp(hash_location, newhash, 16) != 0)
goto release_sk1;
} else {
@@ -1102,8 +1102,8 @@ clear_hash_noput:
return 1;
}
int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
const struct sock *sk, const struct request_sock *req,
int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
const struct sock *sk,
const struct sk_buff *skb)
{
struct tcp_md5sig_pool *hp;
@@ -1111,12 +1111,9 @@ int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
const struct tcphdr *th = tcp_hdr(skb);
__be32 saddr, daddr;
if (sk) {
saddr = inet_sk(sk)->inet_saddr;
daddr = inet_sk(sk)->inet_daddr;
} else if (req) {
saddr = inet_rsk(req)->ir_loc_addr;
daddr = inet_rsk(req)->ir_rmt_addr;
if (sk) { /* valid for establish/request sockets */
saddr = sk->sk_rcv_saddr;
daddr = sk->sk_daddr;
} else {
const struct iphdr *iph = ip_hdr(skb);
saddr = iph->saddr;
@@ -1195,7 +1192,7 @@ static bool tcp_v4_inbound_md5_hash(struct sock *sk,
*/
genhash = tcp_v4_md5_hash_skb(newhash,
hash_expected,
NULL, NULL, skb);
NULL, skb);
if (genhash || memcmp(hash_location, newhash, 16) != 0) {
net_info_ratelimited("MD5 Hash failed for (%pI4, %d)->(%pI4, %d)%s\n",