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inet: add sk_listener argument to inet_reqsk_alloc() 

listener socket can be used to set net pointer, and will
be later used to hold a reference on listener.

Add a const qualifier to first argument (struct request_sock_ops *),
and factorize all write_pnet(&ireq->ireq_net, sock_net(sk));

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2015-03-17 18:32:26 -07:00 committed by David S. Miller
parent 9f2dbdd9b1
commit 407640de21
6 changed files with 11 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/net/inet_sock.h
View File

@ -244,16 +244,19 @@ static inline unsigned int __inet_ehashfn(const __be32 laddr,
initval);
}
static inline struct request_sock *inet_reqsk_alloc(struct request_sock_ops *ops)
static inline struct request_sock *
inet_reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener)
{
struct request_sock *req = reqsk_alloc(ops);
struct inet_request_sock *ireq = inet_rsk(req);
if (req != NULL) {
if (req) {
struct inet_request_sock *ireq = inet_rsk(req);
kmemcheck_annotate_bitfield(ireq, flags);
ireq->opt = NULL;
atomic64_set(&ireq->ir_cookie, 0);
ireq->ireq_state = TCP_NEW_SYN_RECV;
write_pnet(&ireq->ireq_net, sock_net(sk_listener));
/* Following is temporary. It is coupled with debugging
* helpers in reqsk_put() & reqsk_free()

3
net/dccp/ipv4.c
View File

@ -624,7 +624,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
goto drop;
req = inet_reqsk_alloc(&dccp_request_sock_ops);
req = inet_reqsk_alloc(&dccp_request_sock_ops, sk);
if (req == NULL)
goto drop;
@ -641,7 +641,6 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
ireq = inet_rsk(req);
ireq->ir_loc_addr = ip_hdr(skb)->daddr;
ireq->ir_rmt_addr = ip_hdr(skb)->saddr;
write_pnet(&ireq->ireq_net, sock_net(sk));
ireq->ireq_family = AF_INET;
ireq->ir_iif = sk->sk_bound_dev_if;

3
net/dccp/ipv6.c
View File

@ -386,7 +386,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
goto drop;
req = inet_reqsk_alloc(&dccp6_request_sock_ops);
req = inet_reqsk_alloc(&dccp6_request_sock_ops, sk);
if (req == NULL)
goto drop;
@ -403,7 +403,6 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
ireq = inet_rsk(req);
ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
write_pnet(&ireq->ireq_net, sock_net(sk));
ireq->ireq_family = AF_INET6;
if (ipv6_opt_accepted(sk, skb, IP6CB(skb)) ||

3
net/ipv4/syncookies.c
View File

@ -325,7 +325,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
goto out;
ret = NULL;
req = inet_reqsk_alloc(&tcp_request_sock_ops); /* for safety */
req = inet_reqsk_alloc(&tcp_request_sock_ops, sk); /* for safety */
if (!req)
goto out;
@ -346,7 +346,6 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
req->ts_recent = tcp_opt.saw_tstamp ? tcp_opt.rcv_tsval : 0;
treq->snt_synack = tcp_opt.saw_tstamp ? tcp_opt.rcv_tsecr : 0;
treq->listener = NULL;
write_pnet(&ireq->ireq_net, sock_net(sk));
ireq->ireq_family = AF_INET;
ireq->ir_iif = sk->sk_bound_dev_if;

3
net/ipv4/tcp_input.c
View File

@ -6004,7 +6004,7 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops,
goto drop;
}
req = inet_reqsk_alloc(rsk_ops);
req = inet_reqsk_alloc(rsk_ops, sk);
if (!req)
goto drop;
@ -6020,7 +6020,6 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops,
tmp_opt.tstamp_ok = tmp_opt.saw_tstamp;
tcp_openreq_init(req, &tmp_opt, skb, sk);
write_pnet(&inet_rsk(req)->ireq_net, sock_net(sk));
/* Note: tcp_v6_init_req() might override ir_iif for link locals */
inet_rsk(req)->ir_iif = sk->sk_bound_dev_if;

3
net/ipv6/syncookies.c
View File

@ -189,14 +189,13 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
goto out;
ret = NULL;
req = inet_reqsk_alloc(&tcp6_request_sock_ops);
req = inet_reqsk_alloc(&tcp6_request_sock_ops, sk);
if (!req)
goto out;
ireq = inet_rsk(req);
treq = tcp_rsk(req);
treq->listener = NULL;
write_pnet(&ireq->ireq_net, sock_net(sk));
ireq->ireq_family = AF_INET6;
if (security_inet_conn_request(sk, skb, req))