[PATCH iproute2] misc/ss: tcp cwnd should be unsigned
From: Hangbin Liu <hidden>
Date: 2016-09-22 08:40:49
tcp->snd_cwd is a u32, but ss treats it like a signed int. This may results in negative bandwidth calculations. Signed-off-by: Hangbin Liu <redacted> --- misc/ss.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/misc/ss.c b/misc/ss.c
index 3b268d9..f67557a 100644
--- a/misc/ss.c
+++ b/misc/ss.c@@ -754,11 +754,12 @@ struct tcpstat { int probes; char cong_alg[16]; double rto, ato, rtt, rttvar; - int qack, cwnd, ssthresh, backoff; + int qack, ssthresh, backoff; double send_bps; int snd_wscale; int rcv_wscale; int mss; + unsigned int cwnd; unsigned int lastsnd; unsigned int lastrcv; unsigned int lastack;
@@ -1756,7 +1757,7 @@ static void tcp_stats_print(struct tcpstat *s) if (s->mss) printf(" mss:%d", s->mss); if (s->cwnd) - printf(" cwnd:%d", s->cwnd); + printf(" cwnd:%u", s->cwnd); if (s->ssthresh) printf(" ssthresh:%d", s->ssthresh);
@@ -1856,7 +1857,7 @@ static int tcp_show_line(char *line, const struct filter *f, int family) return 0; opt[0] = 0; - n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %d %d %[^\n]\n", + n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n", &s.ss.state, &s.ss.wq, &s.ss.rq, &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes, &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
--
2.5.5