Commit f964629e authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

tcp: constify tcp_v{4|6}_route_req() sock argument 



These functions do not change the listener socket.
Goal is to make sure tcp_conn_request() is not messing with
listener in a racy way.

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3f684b4b

include/net/tcp.h

+1 −1
Original line number Diff line number Diff line
@@ -1711,7 +1711,7 @@ struct tcp_request_sock_ops { 
	__u32 (*cookie_init_seq)(const struct sk_buff *skb,

				 __u16 *mss);

#endif

	struct dst_entry *(*route_req)(struct sock *sk, struct flowi *fl,

	struct dst_entry *(*route_req)(const struct sock *sk, struct flowi *fl,

				       const struct request_sock *req,

				       bool *strict);

	__u32 (*init_seq)(const struct sk_buff *skb);

net/ipv4/tcp_ipv4.c

+2 −1
Original line number Diff line number Diff line
@@ -1180,7 +1180,8 @@ static void tcp_v4_init_req(struct request_sock *req, 
	ireq->opt = tcp_v4_save_options(skb);

}



static struct dst_entry *tcp_v4_route_req(struct sock *sk, struct flowi *fl,

static struct dst_entry *tcp_v4_route_req(const struct sock *sk,

					  struct flowi *fl,

					  const struct request_sock *req,

					  bool *strict)

{

net/ipv6/tcp_ipv6.c

+2 −1
Original line number Diff line number Diff line
@@ -689,7 +689,8 @@ static void tcp_v6_init_req(struct request_sock *req, 
	}

}



static struct dst_entry *tcp_v6_route_req(struct sock *sk, struct flowi *fl,

static struct dst_entry *tcp_v6_route_req(const struct sock *sk,

					  struct flowi *fl,

					  const struct request_sock *req,

					  bool *strict)

{