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-rw-r--r--net/dccp/ipv4.c11
-rw-r--r--net/dccp/ipv6.c7
2 files changed, 7 insertions, 11 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 2312b9f4d7a..44f6e17e105 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -568,17 +568,14 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
struct dccp_request_sock *dreq;
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;
/* Never answer to DCCP_PKT_REQUESTs send to broadcast or multicast */
if (((struct rtable *)skb->dst)->rt_flags &
- (RTCF_BROADCAST | RTCF_MULTICAST)) {
- reset_code = DCCP_RESET_CODE_NO_CONNECTION;
- goto drop;
- }
+ (RTCF_BROADCAST | RTCF_MULTICAST))
+ return 0; /* discard, don't send a reset here */
if (dccp_bad_service_code(sk, service)) {
- reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
+ dcb->dccpd_reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
goto drop;
}
/*
@@ -586,6 +583,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
* limitations, they conserve resources and peer is
* evidently real one.
*/
+ dcb->dccpd_reset_code = DCCP_RESET_CODE_TOO_BUSY;
if (inet_csk_reqsk_queue_is_full(sk))
goto drop;
@@ -638,7 +636,6 @@ drop_and_free:
reqsk_free(req);
drop:
DCCP_INC_STATS_BH(DCCP_MIB_ATTEMPTFAILS);
- dcb->dccpd_reset_code = reset_code;
return -1;
}
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index b7c0f66e283..006a3834fbc 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -390,21 +390,21 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
struct ipv6_pinfo *np = inet6_sk(sk);
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;
if (skb->protocol == htons(ETH_P_IP))
return dccp_v4_conn_request(sk, skb);
if (!ipv6_unicast_destination(skb))
- goto drop;
+ return 0; /* discard, don't send a reset here */
if (dccp_bad_service_code(sk, service)) {
- reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
+ dcb->dccpd_reset_code = DCCP_RESET_CODE_BAD_SERVICE_CODE;
goto drop;
}
/*
* There are no SYN attacks on IPv6, yet...
*/
+ dcb->dccpd_reset_code = DCCP_RESET_CODE_TOO_BUSY;
if (inet_csk_reqsk_queue_is_full(sk))
goto drop;
@@ -464,7 +464,6 @@ drop_and_free:
reqsk_free(req);
drop:
DCCP_INC_STATS_BH(DCCP_MIB_ATTEMPTFAILS);
- dcb->dccpd_reset_code = reset_code;
return -1;
}