@@ -110,10 +110,10 @@ enum {
INET_DIAG_TCLASS,
INET_DIAG_SKMEMINFO,
INET_DIAG_SHUTDOWN,
+ INET_DIAG_DCTCPINFO,
};
-#define INET_DIAG_MAX INET_DIAG_SHUTDOWN
-
+#define INET_DIAG_MAX INET_DIAG_DCTCPINFO
/* INET_DIAG_MEM */
@@ -133,5 +133,14 @@ struct tcpvegas_info {
__u32 tcpv_minrtt;
};
+/* INET_DIAG_DCTCPINFO */
+
+struct tcp_dctcp_info {
+ __u16 dctcp_enabled;
+ __u16 dctcp_ce_state;
+ __u32 dctcp_alpha;
+ __u32 dctcp_ab_ecn;
+ __u32 dctcp_ab_tot;
+};
#endif /* _INET_DIAG_H_ */
@@ -1576,6 +1576,19 @@ static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
rtt = vinfo->tcpv_rtt;
}
+ if (tb[INET_DIAG_DCTCPINFO]) {
+ const struct tcp_dctcp_info *dinfo
+ = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
+
+ if (dinfo->dctcp_enabled) {
+ printf(" ce_state %u alpha %u ab_ecn %u ab_tot %u",
+ dinfo->dctcp_ce_state, dinfo->dctcp_alpha,
+ dinfo->dctcp_ab_ecn, dinfo->dctcp_ab_tot);
+ } else {
+ printf(" fallback_mode");
+ }
+ }
+
if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
printf(" send %sbps",
sprint_bw(b1, (double) info->tcpi_snd_cwnd *