[DCCP]: tidy up dccp_v{4,6}_conn_request
This is a code simplification to remove reduplicated code
by concentrating and abstracting shared code.
Detailed Changes:
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index ed4a502..19a4f76 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -427,7 +427,6 @@
static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
{
- struct dccp_sock dp;
struct request_sock *req;
struct dccp_request_sock *dreq;
struct inet6_request_sock *ireq6;
@@ -459,9 +458,10 @@
if (req == NULL)
goto drop;
- /* FIXME: process options */
+ if (dccp_parse_options(sk, skb))
+ goto drop_and_free;
- dccp_openreq_init(req, &dp, skb);
+ dccp_reqsk_init(req, skb);
if (security_inet_conn_request(sk, skb, req))
goto drop_and_free;
@@ -469,7 +469,6 @@
ireq6 = inet6_rsk(req);
ipv6_addr_copy(&ireq6->rmt_addr, &skb->nh.ipv6h->saddr);
ipv6_addr_copy(&ireq6->loc_addr, &skb->nh.ipv6h->daddr);
- req->rcv_wnd = dccp_feat_default_sequence_window;
ireq6->pktopts = NULL;
if (ipv6_opt_accepted(sk, skb) ||