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-rw-r--r--net/dccp/options.c34
1 files changed, 18 insertions, 16 deletions
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 7ad2f4266ff..34b230a0087 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -72,6 +72,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
struct dccp_options_received *opt_recv = &dp->dccps_options_received;
unsigned char opt, len;
unsigned char *value;
+ u32 elapsed_time;
memset(opt_recv, 0, sizeof(*opt_recv));
@@ -159,18 +160,18 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
(unsigned long long)
DCCP_SKB_CB(skb)->dccpd_ack_seq);
- if (len > 4) {
- if (len == 6)
- opt_recv->dccpor_elapsed_time =
- ntohs(*(u16 *)(value + 4));
- else
- opt_recv->dccpor_elapsed_time =
- ntohl(*(u32 *)(value + 4));
- dccp_pr_debug("%sTIMESTAMP_ECHO ELAPSED_TIME=%d\n",
- debug_prefix,
- opt_recv->dccpor_elapsed_time);
- }
+ if (len == 4)
+ break;
+
+ if (len == 6)
+ elapsed_time = ntohs(*(u16 *)(value + 4));
+ else
+ elapsed_time = ntohl(*(u32 *)(value + 4));
+
+ /* Give precedence to the biggest ELAPSED_TIME */
+ if (elapsed_time > opt_recv->dccpor_elapsed_time)
+ opt_recv->dccpor_elapsed_time = elapsed_time;
break;
case DCCPO_ELAPSED_TIME:
if (len != 2 && len != 4)
@@ -180,14 +181,15 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
continue;
if (len == 2)
- opt_recv->dccpor_elapsed_time =
- ntohs(*(u16 *)value);
+ elapsed_time = ntohs(*(u16 *)value);
else
- opt_recv->dccpor_elapsed_time =
- ntohl(*(u32 *)value);
+ elapsed_time = ntohl(*(u32 *)value);
+
+ if (elapsed_time > opt_recv->dccpor_elapsed_time)
+ opt_recv->dccpor_elapsed_time = elapsed_time;
dccp_pr_debug("%sELAPSED_TIME=%d\n", debug_prefix,
- opt_recv->dccpor_elapsed_time);
+ elapsed_time);
break;
/*
* From draft-ietf-dccp-spec-11.txt: