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Commit 076fb722 authored by YOSHIFUJI Hideaki's avatar YOSHIFUJI Hideaki
Browse files

tcp md5sig: Remove redundant protocol argument. 



Protocol is always TCP, so remove useless protocol argument.

Signed-off-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
parent 7d5d5525

include/net/tcp.h

+0 −2
Original line number Diff line number Diff line
@@ -1123,7 +1123,6 @@ extern int tcp_v4_calc_md5_hash(char *md5_hash, 
						     struct dst_entry *dst,

						     struct request_sock *req,

						     struct tcphdr *th,

						     int protocol,

						     unsigned int tcplen);

extern struct tcp_md5sig_key	*tcp_v4_md5_lookup(struct sock *sk,

						   struct sock *addr_sk);
@@ -1373,7 +1372,6 @@ struct tcp_sock_af_ops { 
						  struct dst_entry *dst,

						  struct request_sock *req,

						  struct tcphdr *th,

						  int protocol,

						  unsigned int len);

	int			(*md5_add) (struct sock *sk,

					    struct sock *addr_sk,

net/ipv4/tcp_ipv4.c

+8 −12
Original line number Diff line number Diff line
@@ -95,8 +95,7 @@ static struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk, 
						   __be32 addr);

static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,

				   __be32 saddr, __be32 daddr,

				   struct tcphdr *th, int protocol,

				   unsigned int tcplen);

				   struct tcphdr *th, unsigned int tcplen);

#endif



struct inet_hashinfo __cacheline_aligned tcp_hashinfo = {
@@ -586,8 +585,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb) 
					key,

					ip_hdr(skb)->daddr,

					ip_hdr(skb)->saddr,

					&rep.th, IPPROTO_TCP,

					arg.iov[0].iov_len);

					&rep.th, arg.iov[0].iov_len);

	}

#endif

	arg.csum = csum_tcpudp_nofold(ip_hdr(skb)->daddr,
@@ -680,8 +678,7 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk, 
					key,

					ip_hdr(skb)->daddr,

					ip_hdr(skb)->saddr,

					&rep.th, IPPROTO_TCP,

					arg.iov[0].iov_len);

					&rep.th, arg.iov[0].iov_len);

	}

#endif

	arg.csum = csum_tcpudp_nofold(ip_hdr(skb)->daddr,
@@ -1006,7 +1003,7 @@ static int tcp_v4_parse_md5_keys(struct sock *sk, char __user *optval, 


static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,

				   __be32 saddr, __be32 daddr,

				   struct tcphdr *th, int protocol,

				   struct tcphdr *th,

				   unsigned int tcplen)

{

	struct scatterlist sg[4];
@@ -1039,7 +1036,7 @@ static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key, 
	bp->saddr = saddr;

	bp->daddr = daddr;

	bp->pad = 0;

	bp->protocol = protocol;

	bp->protocol = IPPROTO_TCP;

	bp->len = htons(tcplen);



	sg_init_table(sg, 4);
@@ -1099,7 +1096,7 @@ int tcp_v4_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key, 
			 struct sock *sk,

			 struct dst_entry *dst,

			 struct request_sock *req,

			 struct tcphdr *th, int protocol,

			 struct tcphdr *th,

			 unsigned int tcplen)

{

	__be32 saddr, daddr;
@@ -1115,7 +1112,7 @@ int tcp_v4_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key, 
	}

	return tcp_v4_do_calc_md5_hash(md5_hash, key,

				       saddr, daddr,

				       th, protocol, tcplen);

				       th, tcplen);

}



EXPORT_SYMBOL(tcp_v4_calc_md5_hash);
@@ -1166,8 +1163,7 @@ static int tcp_v4_inbound_md5_hash(struct sock *sk, struct sk_buff *skb) 
	genhash = tcp_v4_do_calc_md5_hash(newhash,

					  hash_expected,

					  iph->saddr, iph->daddr,

					  th, sk->sk_protocol,

					  skb->len);

					  th, skb->len);



	if (genhash || memcmp(hash_location, newhash, 16) != 0) {

		if (net_ratelimit()) {

net/ipv4/tcp_output.c

+1 −2
Original line number Diff line number Diff line
@@ -607,7 +607,6 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, 
					       md5,

					       sk, NULL, NULL,

					       tcp_hdr(skb),

					       sk->sk_protocol,

					       skb->len);

	}

#endif
@@ -2266,7 +2265,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, 
		tp->af_specific->calc_md5_hash(md5_hash_location,

					       md5,

					       NULL, dst, req,

					       tcp_hdr(skb), sk->sk_protocol,

					       tcp_hdr(skb),

					       skb->len);

	}

#endif

net/ipv6/tcp_ipv6.c

+7 −10
Original line number Diff line number Diff line
@@ -736,8 +736,7 @@ static int tcp_v6_parse_md5_keys (struct sock *sk, char __user *optval, 
static int tcp_v6_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,

				   struct in6_addr *saddr,

				   struct in6_addr *daddr,

				   struct tcphdr *th, int protocol,

				   unsigned int tcplen)

				   struct tcphdr *th, unsigned int tcplen)

{

	struct scatterlist sg[4];

	__u16 data_len;
@@ -761,7 +760,7 @@ static int tcp_v6_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key, 
	ipv6_addr_copy(&bp->saddr, saddr);

	ipv6_addr_copy(&bp->daddr, daddr);

	bp->len = htonl(tcplen);

	bp->protocol = htonl(protocol);

	bp->protocol = htonl(IPPROTO_TCP);



	sg_init_table(sg, 4);
@@ -821,8 +820,7 @@ static int tcp_v6_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key, 
				struct sock *sk,

				struct dst_entry *dst,

				struct request_sock *req,

				struct tcphdr *th, int protocol,

				unsigned int tcplen)

				struct tcphdr *th, unsigned int tcplen)

{

	struct in6_addr *saddr, *daddr;
@@ -835,7 +833,7 @@ static int tcp_v6_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key, 
	}

	return tcp_v6_do_calc_md5_hash(md5_hash, key,

				       saddr, daddr,

				       th, protocol, tcplen);

				       th, tcplen);

}



static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb)
@@ -879,8 +877,7 @@ static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb) 
	genhash = tcp_v6_do_calc_md5_hash(newhash,

					  hash_expected,

					  &ip6h->saddr, &ip6h->daddr,

					  th, sk->sk_protocol,

					  skb->len);

					  th, skb->len);

	if (genhash || memcmp(hash_location, newhash, 16) != 0) {

		if (net_ratelimit()) {

			printk(KERN_INFO "MD5 Hash %s for "
@@ -1020,7 +1017,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) 
		tcp_v6_do_calc_md5_hash((__u8 *)&opt[1], key,

					&ipv6_hdr(skb)->daddr,

					&ipv6_hdr(skb)->saddr,

					t1, IPPROTO_TCP, tot_len);

					t1, tot_len);

	}

#endif
@@ -1126,7 +1123,7 @@ static void tcp_v6_send_ack(struct tcp_timewait_sock *tw, 
		tcp_v6_do_calc_md5_hash((__u8 *)topt, key,

					&ipv6_hdr(skb)->daddr,

					&ipv6_hdr(skb)->saddr,

					t1, IPPROTO_TCP, tot_len);

					t1, tot_len);

	}

#endif