[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/dccp.h b/net/dccp/dccp.h
index 7b859a7..2990bfb 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -155,18 +155,7 @@
extern void dccp_set_state(struct sock *sk, const int state);
extern void dccp_done(struct sock *sk);
-static inline void dccp_openreq_init(struct request_sock *req,
- struct dccp_sock *dp,
- struct sk_buff *skb)
-{
- /*
- * FIXME: fill in the other req fields from the DCCP options
- * received
- */
- inet_rsk(req)->rmt_port = dccp_hdr(skb)->dccph_sport;
- inet_rsk(req)->acked = 0;
- req->rcv_wnd = 0;
-}
+extern void dccp_reqsk_init(struct request_sock *req, struct sk_buff *skb);
extern int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index ed62026..d75ce8c 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -636,11 +636,8 @@
int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
{
struct inet_request_sock *ireq;
- struct dccp_sock dp;
struct request_sock *req;
struct dccp_request_sock *dreq;
- const __be32 saddr = skb->nh.iph->saddr;
- const __be32 daddr = skb->nh.iph->daddr;
const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
__u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
@@ -680,14 +677,14 @@
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;
ireq = inet_rsk(req);
- ireq->loc_addr = daddr;
- ireq->rmt_addr = saddr;
+ ireq->loc_addr = skb->nh.iph->daddr;
+ ireq->rmt_addr = skb->nh.iph->saddr;
req->rcv_wnd = dccp_feat_default_sequence_window;
ireq->opt = NULL;
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) ||
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 5f3e1a4..0f228ab 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -293,3 +293,12 @@
}
EXPORT_SYMBOL_GPL(dccp_reqsk_send_ack);
+
+void dccp_reqsk_init(struct request_sock *req, struct sk_buff *skb)
+{
+ inet_rsk(req)->rmt_port = dccp_hdr(skb)->dccph_sport;
+ inet_rsk(req)->acked = 0;
+ req->rcv_wnd = dccp_feat_default_sequence_window;
+}
+
+EXPORT_SYMBOL_GPL(dccp_reqsk_init);