summaryrefslogtreecommitdiffstats
path: root/net/dccp/options.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/dccp/options.c')
-rw-r--r--net/dccp/options.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 79d228e4d6b2..8867b6f43220 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -109,7 +109,8 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
case DCCPO_MANDATORY:
if (mandatory)
goto out_invalid_option;
- mandatory = 1;
+ if (pkt_type != DCCP_PKT_DATA)
+ mandatory = 1;
break;
case DCCPO_NDP_COUNT:
if (len > 3)
@@ -249,6 +250,10 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
mandatory = 0;
}
+ /* mandatory was the last byte in option list -> reset connection */
+ if (mandatory)
+ goto out_invalid_option;
+
return 0;
out_invalid_option:
OpenPOWER on IntegriCloud