Date: Sun, 13 Sep 2020 09:14:33 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r365688 - head/usr.bin/netstat Message-ID: <202009130914.08D9EXBk096436@repo.freebsd.org>
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Author: tuexen Date: Sun Sep 13 09:14:32 2020 New Revision: 365688 URL: https://svnweb.freebsd.org/changeset/base/365688 Log: Add a -C option to netstat to display the congestion control for TCP connections. Reviewed by: rscheff MFC after: 1 week Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D26414 Modified: head/usr.bin/netstat/inet.c head/usr.bin/netstat/main.c head/usr.bin/netstat/netstat.1 head/usr.bin/netstat/netstat.h Modified: head/usr.bin/netstat/inet.c ============================================================================== --- head/usr.bin/netstat/inet.c Sun Sep 13 09:12:25 2020 (r365687) +++ head/usr.bin/netstat/inet.c Sun Sep 13 09:14:32 2020 (r365688) @@ -341,6 +341,9 @@ protopr(u_long off, const char *name, int af1, int pro xo_emit(" {T:/%8.8s} {T:/%5.5s}", "flowid", "ftype"); } + if (Cflag) + xo_emit(" {T:/%-*.*s}", TCP_CA_NAME_MAX, + TCP_CA_NAME_MAX, "CC"); if (Pflag) xo_emit(" {T:/%s}", "Log ID"); xo_emit("\n"); @@ -514,9 +517,15 @@ protopr(u_long off, const char *name, int af1, int pro inp->inp_flowid, inp->inp_flowtype); } - if (istcp && Pflag) - xo_emit(" {:log-id/%s}", tp->xt_logid[0] == '\0' ? - "-" : tp->xt_logid); + if (istcp) { + if (Cflag) + xo_emit(" {:cc/%-*.*s}", TCP_CA_NAME_MAX, + TCP_CA_NAME_MAX, tp->xt_cc); + if (Pflag) + xo_emit(" {:log-id/%s}", + tp->xt_logid[0] == '\0' ? + "-" : tp->xt_logid); + } xo_emit("\n"); xo_close_instance("socket"); } Modified: head/usr.bin/netstat/main.c ============================================================================== --- head/usr.bin/netstat/main.c Sun Sep 13 09:12:25 2020 (r365687) +++ head/usr.bin/netstat/main.c Sun Sep 13 09:14:32 2020 (r365688) @@ -205,6 +205,7 @@ int Aflag; /* show addresses of protocol control bloc int aflag; /* show all sockets (including servers) */ static int Bflag; /* show information about bpf consumers */ int bflag; /* show i/f total bytes in/out */ +int Cflag; /* show congestion control */ int dflag; /* show i/f dropped packets */ int gflag; /* show group (multicast) routing or stats */ int hflag; /* show counters in human readable format */ @@ -249,7 +250,7 @@ main(int argc, char *argv[]) if (argc < 0) exit(EXIT_FAILURE); - while ((ch = getopt(argc, argv, "46AaBbdF:f:ghI:iLlM:mN:noPp:Qq:RrSTsuWw:xz")) + while ((ch = getopt(argc, argv, "46AaBbCdF:f:ghI:iLlM:mN:noPp:Qq:RrSTsuWw:xz")) != -1) switch(ch) { case '4': @@ -277,6 +278,9 @@ main(int argc, char *argv[]) break; case 'b': bflag = 1; + break; + case 'C': + Cflag = 1; break; case 'd': dflag = 1; Modified: head/usr.bin/netstat/netstat.1 ============================================================================== --- head/usr.bin/netstat/netstat.1 Sun Sep 13 09:12:25 2020 (r365687) +++ head/usr.bin/netstat/netstat.1 Sun Sep 13 09:14:32 2020 (r365688) @@ -28,7 +28,7 @@ .\" @(#)netstat.1 8.8 (Berkeley) 4/18/94 .\" $FreeBSD$ .\" -.Dd July 21, 2020 +.Dd September 13, 2020 .Dt NETSTAT 1 .Os .Sh NAME @@ -39,7 +39,7 @@ .Bl -tag -width "netstat" .It Nm .Op Fl -libxo -.Op Fl 46AaLnPRSTWx +.Op Fl 46AaCLnPRSTWx .Op Fl f Ar protocol_family | Fl p Ar protocol .Op Fl M Ar core .Op Fl N Ar system @@ -111,7 +111,7 @@ depending on the options for the information presented .It Xo .Bk -words .Nm -.Op Fl 46AaLnRSTWx +.Op Fl 46AaCLnRSTWx .Op Fl f Ar protocol_family | Fl p Ar protocol .Op Fl M Ar core .Op Fl N Ar system @@ -172,6 +172,8 @@ associated with a socket; used for debugging. .It Fl a Show the state of all sockets; normally sockets used by server processes are not shown. +.It Fl C +Show the congestion control of TCP sockets. .It Fl L Show the size of the various listen queues. The first count shows the number of unaccepted connections, Modified: head/usr.bin/netstat/netstat.h ============================================================================== --- head/usr.bin/netstat/netstat.h Sun Sep 13 09:12:25 2020 (r365687) +++ head/usr.bin/netstat/netstat.h Sun Sep 13 09:14:32 2020 (r365688) @@ -41,6 +41,7 @@ extern int Aflag; /* show addresses of protocol control block */ extern int aflag; /* show all sockets (including servers) */ extern int bflag; /* show i/f total bytes in/out */ +extern int Cflag; /* show congestion control */ extern int dflag; /* show i/f dropped packets */ extern int gflag; /* show group (multicast) routing or stats */ extern int hflag; /* show counters in human readable format */
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