提交 f73f7097 编写于 作者: G Gerrit Renker 提交者: David S. Miller

[DCCP]: Debug statements for Elapsed Time option

This prints the value of the parsed Elapsed Time when received via a
Timestamp Echo option [RFC 4342, 13.3].
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: NIan McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: NArnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 b2449fdc
...@@ -172,21 +172,25 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb) ...@@ -172,21 +172,25 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
opt_recv->dccpor_timestamp_echo = ntohl(*(__be32 *)value); opt_recv->dccpor_timestamp_echo = ntohl(*(__be32 *)value);
dccp_pr_debug("%s rx opt: TIMESTAMP_ECHO=%u, len=%d, " dccp_pr_debug("%s rx opt: TIMESTAMP_ECHO=%u, len=%d, "
"ackno=%llu, ", dccp_role(sk), "ackno=%llu", dccp_role(sk),
opt_recv->dccpor_timestamp_echo, opt_recv->dccpor_timestamp_echo,
len + 2, len + 2,
(unsigned long long) (unsigned long long)
DCCP_SKB_CB(skb)->dccpd_ack_seq); DCCP_SKB_CB(skb)->dccpd_ack_seq);
if (len == 4) if (len == 4) {
dccp_pr_debug_cat("\n");
break; break;
}
if (len == 6) if (len == 6)
elapsed_time = ntohs(*(__be16 *)(value + 4)); elapsed_time = ntohs(*(__be16 *)(value + 4));
else else
elapsed_time = ntohl(*(__be32 *)(value + 4)); elapsed_time = ntohl(*(__be32 *)(value + 4));
dccp_pr_debug_cat(", ELAPSED_TIME=%d\n", elapsed_time);
/* Give precedence to the biggest ELAPSED_TIME */ /* Give precedence to the biggest ELAPSED_TIME */
if (elapsed_time > opt_recv->dccpor_elapsed_time) if (elapsed_time > opt_recv->dccpor_elapsed_time)
opt_recv->dccpor_elapsed_time = elapsed_time; opt_recv->dccpor_elapsed_time = elapsed_time;
......
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