sockstat: add -i to display inp_gencnt
The inp_gencnt will be used to identify a TCP endpoint by an upcoming command line tool to set TCP socket options. Reviewed by: rscheff MFC after: 1 week Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D34137
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@ -27,7 +27,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 11, 2021
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.Dd February 2, 2022
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.Dt SOCKSTAT 1
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.Os
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.Sh NAME
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@ -35,7 +35,7 @@
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.Nd list open sockets
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.Sh SYNOPSIS
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.Nm
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.Op Fl 46CcLlnqSsUuvw
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.Op Fl 46CciLlnqSsUuvw
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.Op Fl j Ar jail
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.Op Fl p Ar ports
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.Op Fl P Ar protocols
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@ -61,6 +61,9 @@ Display the congestion control module, if applicable.
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This is currently only implemented for TCP.
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.It Fl c
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Show connected sockets.
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.It Fl i
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Display the
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.Dv inp_gencnt .
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.It Fl j Ar jail
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Show only sockets belonging to the specified jail ID or name.
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.It Fl L
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@ -160,6 +163,10 @@ if the endpoint could not be determined.
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(Internet sockets only)
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The address the foreign end of the socket is bound to (see
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.Xr getpeername 2 ) .
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.It Li ID
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The inp_gencnt if
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.Fl i
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is specified (only for TCP or UDP).
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.It Li ENCAPS
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The remote UDP encapsulation port number if
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.Fl U
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@ -59,6 +59,7 @@ __FBSDID("$FreeBSD$");
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <inttypes.h>
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#include <jail.h>
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#include <netdb.h>
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#include <pwd.h>
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@ -83,6 +84,7 @@ static int opt_4; /* Show IPv4 sockets */
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static int opt_6; /* Show IPv6 sockets */
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static int opt_C; /* Show congestion control */
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static int opt_c; /* Show connected sockets */
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static int opt_i; /* Show inp_gencnt */
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static int opt_j; /* Show specified jail */
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static int opt_L; /* Don't show IPv4 or IPv6 loopback sockets */
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static int opt_l; /* Show listening sockets */
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@ -120,6 +122,7 @@ struct addr {
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struct sock {
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kvaddr_t socket;
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kvaddr_t pcb;
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uint64_t inp_gencnt;
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int shown;
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int vflag;
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int family;
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@ -713,6 +716,7 @@ gather_inet(int proto)
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err(1, "malloc()");
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sock->socket = so->xso_so;
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sock->proto = proto;
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sock->inp_gencnt = xip->inp_gencnt;
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if (xip->inp_vflag & INP_IPV4) {
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sock->family = AF_INET;
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sockaddr(&laddr->address, sock->family,
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@ -1107,6 +1111,15 @@ displaysock(struct sock *s, int pos)
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default:
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abort();
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}
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if (opt_i) {
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if (s->proto == IPPROTO_TCP ||
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s->proto == IPPROTO_UDP) {
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while (pos < offset)
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pos += xprintf(" ");
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pos += xprintf("%" PRIu64, s->inp_gencnt);
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}
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offset += 9;
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}
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if (opt_U) {
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if (faddr != NULL &&
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((s->proto == IPPROTO_SCTP &&
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@ -1204,6 +1217,8 @@ display(void)
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"USER", "COMMAND", "PID", "FD", "PROTO",
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opt_w ? 45 : 21, "LOCAL ADDRESS",
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opt_w ? 45 : 21, "FOREIGN ADDRESS");
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if (opt_i)
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printf(" %-8s", "ID");
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if (opt_U)
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printf(" %-6s", "ENCAPS");
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if (opt_s) {
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@ -1324,7 +1339,7 @@ static void
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usage(void)
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{
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fprintf(stderr,
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"usage: sockstat [-46cLlSsUuvw] [-j jid] [-p ports] [-P protocols]\n");
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"usage: sockstat [-46ciLlSsUuvw] [-j jid] [-p ports] [-P protocols]\n");
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exit(1);
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}
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@ -1339,7 +1354,7 @@ main(int argc, char *argv[])
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int o, i;
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opt_j = -1;
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while ((o = getopt(argc, argv, "46Ccj:Llnp:P:qSsUuvw")) != -1)
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while ((o = getopt(argc, argv, "46Ccij:Llnp:P:qSsUuvw")) != -1)
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switch (o) {
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case '4':
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opt_4 = 1;
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@ -1353,6 +1368,9 @@ main(int argc, char *argv[])
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case 'c':
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opt_c = 1;
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break;
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case 'i':
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opt_i = 1;
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break;
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case 'j':
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opt_j = jail_getid(optarg);
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if (opt_j < 0)
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