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tcp: md5: get rid of tcp_v[46]_reqsk_md5_lookup()

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With request socks convergence, we no longer need
different lookup methods. A request socket can
use generic lookup function.

Add const qualifier to 2nd tcp_v[46]_md5_lookup() parameter.

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 15:58:56 -07:00
committed by David S. Miller
parent 39f8e58e53
commit fd3a154a00
4 changed files with 12 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
net/ipv4/tcp_ipv4.c
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@@ -898,10 +898,10 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
const union tcp_md5_addr *addr,
int family)
{
struct tcp_sock *tp = tcp_sk(sk);
const struct tcp_sock *tp = tcp_sk(sk);
struct tcp_md5sig_key *key;
unsigned int size = sizeof(struct in_addr);
struct tcp_md5sig_info *md5sig;
const struct tcp_md5sig_info *md5sig;
/* caller either holds rcu_read_lock() or socket lock */
md5sig = rcu_dereference_check(tp->md5sig_info,
@@ -924,24 +924,15 @@ struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
EXPORT_SYMBOL(tcp_md5_do_lookup);
struct tcp_md5sig_key *tcp_v4_md5_lookup(struct sock *sk,
struct sock *addr_sk)
const struct sock *addr_sk)
{
union tcp_md5_addr *addr;
addr = (union tcp_md5_addr *)&inet_sk(addr_sk)->inet_daddr;
addr = (union tcp_md5_addr *)&sk->sk_daddr;
return tcp_md5_do_lookup(sk, addr, AF_INET);
}
EXPORT_SYMBOL(tcp_v4_md5_lookup);
static struct tcp_md5sig_key *tcp_v4_reqsk_md5_lookup(struct sock *sk,
struct request_sock *req)
{
union tcp_md5_addr *addr;
addr = (union tcp_md5_addr *)&inet_rsk(req)->ir_rmt_addr;
return tcp_md5_do_lookup(sk, addr, AF_INET);
}
/* This can be called on a newly created socket, from other files */
int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
int family, const u8 *newkey, u8 newkeylen, gfp_t gfp)
@@ -1247,7 +1238,7 @@ struct request_sock_ops tcp_request_sock_ops __read_mostly = {
static const struct tcp_request_sock_ops tcp_request_sock_ipv4_ops = {
.mss_clamp = TCP_MSS_DEFAULT,
#ifdef CONFIG_TCP_MD5SIG
.md5_lookup = tcp_v4_reqsk_md5_lookup,
.req_md5_lookup = tcp_v4_md5_lookup,
.calc_md5_hash = tcp_v4_md5_hash_skb,
#endif
.init_req = tcp_v4_init_req,