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[DCCP]: tidy up dccp_v{4,6}_conn_request

Browse Source 
This is a code simplification to remove reduplicated code
by concentrating and abstracting shared code.

Detailed Changes:
This commit is contained in:
Gerrit Renker 2006-11-10 16:08:37 -02:00 committed by David S. Miller
parent f45b3ec481
commit cf557926f6
4 changed files with 16 additions and 22 deletions
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13
net/dccp/dccp.h
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@ -155,18 +155,7 @@ extern const char *dccp_state_name(const int state);
extern void dccp_set_state(struct sock *sk, const int state); extern void dccp_set_state(struct sock *sk, const int state);
extern void dccp_done(struct sock *sk); extern void dccp_done(struct sock *sk);
static inline void dccp_openreq_init(struct request_sock *req, extern void dccp_reqsk_init(struct request_sock *req, struct sk_buff *skb);
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 int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb); extern int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb);

9
net/dccp/ipv4.c
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@ -636,11 +636,8 @@ static struct request_sock_ops dccp_request_sock_ops __read_mostly = {
int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb) int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
{ {
struct inet_request_sock *ireq; struct inet_request_sock *ireq;
struct dccp_sock dp;
struct request_sock *req; struct request_sock *req;
struct dccp_request_sock *dreq; 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; const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb); struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
__u8 reset_code = DCCP_RESET_CODE_TOO_BUSY; __u8 reset_code = DCCP_RESET_CODE_TOO_BUSY;
@ -680,14 +677,14 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
if (dccp_parse_options(sk, skb)) if (dccp_parse_options(sk, skb))
goto drop_and_free; goto drop_and_free;
dccp_openreq_init(req, &dp, skb); dccp_reqsk_init(req, skb);
if (security_inet_conn_request(sk, skb, req)) if (security_inet_conn_request(sk, skb, req))
goto drop_and_free; goto drop_and_free;
ireq = inet_rsk(req); ireq = inet_rsk(req);
ireq->loc_addr = daddr; ireq->loc_addr = skb->nh.iph->daddr;
ireq->rmt_addr = saddr; ireq->rmt_addr = skb->nh.iph->saddr;
req->rcv_wnd = dccp_feat_default_sequence_window; req->rcv_wnd = dccp_feat_default_sequence_window;
ireq->opt = NULL; ireq->opt = NULL;

7
net/dccp/ipv6.c
View File

@ -427,7 +427,6 @@ static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb) static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
{ {
struct dccp_sock dp;
struct request_sock *req; struct request_sock *req;
struct dccp_request_sock *dreq; struct dccp_request_sock *dreq;
struct inet6_request_sock *ireq6; struct inet6_request_sock *ireq6;
@ -459,9 +458,10 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
if (req == NULL) if (req == NULL)
goto drop; 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)) if (security_inet_conn_request(sk, skb, req))
goto drop_and_free; goto drop_and_free;
@ -469,7 +469,6 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
ireq6 = inet6_rsk(req); ireq6 = inet6_rsk(req);
ipv6_addr_copy(&ireq6->rmt_addr, &skb->nh.ipv6h->saddr); ipv6_addr_copy(&ireq6->rmt_addr, &skb->nh.ipv6h->saddr);
ipv6_addr_copy(&ireq6->loc_addr, &skb->nh.ipv6h->daddr); ipv6_addr_copy(&ireq6->loc_addr, &skb->nh.ipv6h->daddr);
req->rcv_wnd = dccp_feat_default_sequence_window;
ireq6->pktopts = NULL; ireq6->pktopts = NULL;
if (ipv6_opt_accepted(sk, skb) || if (ipv6_opt_accepted(sk, skb) ||

9
net/dccp/minisocks.c
View File

@ -293,3 +293,12 @@ void dccp_reqsk_send_ack(struct sk_buff *skb, struct request_sock *rsk)
} }
EXPORT_SYMBOL_GPL(dccp_reqsk_send_ack); 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);