netstat: Add -F support for -g

This change adds the ability to examine the contents of multicast
routing tables for other FIBs without the need for executing
`netstat` with `setfib(1)`.

MFC after:	3 days
Sponsored by:	Klara, Inc.
Sponsored by:	Stormshield
Differential Revision:	https://reviews.freebsd.org/D56205
Reviewed by:	glebius, markj, zlei

This commit is contained in:

Bojan Novković

2026-03-26 10:39:10 +01:00

parent 8244dd3262

commit cff675e83c

2 changed files with 14 additions and 1 deletions

									
										usr.bin/netstat/main.c
									
		+2
		
												View File
												
				@@ -550,6 +550,8 @@ main(int argc, char *argv[])

					if (gflag) {

						if (fib != -1 && setfib(fib) < 0)

							xo_errx(EX_DATAERR, "setfib: %s", strerror(errno));

						xo_open_container("statistics");

						xo_set_version(NETSTAT_XO_VERSION);

						if (sflag) {

									
										usr.bin/netstat/netstat.1
									
		+12
		-1
	
												View File
												
				@@ -25,7 +25,7 @@

				.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

				.\" SUCH DAMAGE.

				.\"

				.Dd April 3, 2026

				.Dd April 7, 2026

				.Dt NETSTAT 1

				.Os

				.Sh NAME

				@@ -94,6 +94,7 @@

				.Op Fl j Ar jail

				.Op Fl -libxo

				.Op Fl 46W

				.Op Fl F Ar fibnum

				.Op Fl f Ar address_family

				.It Nm Fl gs

				.Op Fl j Ar jail

				@@ -738,6 +739,7 @@ See

				.Nm

				.Fl g

				.Op Fl 46W

				.Op Fl F Ar fibnum

				.Op Fl f Ar address_family

				.Op Fl M Ar core

				.Op Fl N Ar system

				@@ -764,6 +766,15 @@ See

				.Sx GENERAL OPTIONS .

				.It Fl W

				Avoid truncating addresses even if this causes some fields to overflow.

				.It Fl F

				Display the routing table with the number

				.Ar fibnum .

				If the specified

				.Ar fibnum

				is -1 or

				.Fl F

				is not specified,

				the default routing table is displayed.

				.It Fl f Ar protocol_family

				Filter by

				.Ar protocol_family .