In the kernel exist functions to print routes, but they were not

accessible from ddb.  Implement "show all routes" to print routing
tables, and "show route 0xfffffd807e9b0000" for a single route
entry.  Note that the rtable id is not part of a route entry, so
it makes no sense to print it there.
OK deraadt@

1 files changed, 28 insertions, 2 deletions

diff --git a/share/man/man4/ddb.4 b/share/man/man4/ddb.4
index 5f8a27db355..52decfcd4a6 100644
--- a/share/man/man4/ddb.4
+++ b/share/man/man4/ddb.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ddb.4,v 1.101 2022/03/31 17:27:20 naddy Exp $
+.\"	$OpenBSD: ddb.4,v 1.102 2022/07/28 22:19:09 bluhm Exp $
 .\"	$NetBSD: ddb.4,v 1.5 1994/11/30 16:22:09 jtc Exp $
 .\"
 .\" Mach Operating System
@@ -25,7 +25,7 @@
 .\" any improvements or extensions that they make and grant Carnegie Mellon
 .\" the rights to redistribute these changes.
 .\"
-.Dd $Mdocdate: March 31 2022 $
+.Dd $Mdocdate: July 28 2022 $
 .Dt DDB 4
 .Os
 .Sh NAME
@@ -791,6 +791,12 @@ Note: The
 modifier is not supported on every machine, in which case
 incorrect information may be displayed.
 .\" --------------------
+.It Ic show route Ar addr
+Prints the
+.Li struct rtentry
+at
+.Ar addr .
+.\" --------------------
 .It Ic show socket Ar addr
 Prints the
 .Li struct socket
@@ -954,6 +960,26 @@ See the
 command for more information.
 .El
 .\" --------------------
+.It Xo
+.Ic show all routes
+.Op Cm /iI
+.Op Ar rtableid
+.Op Ic \&, Ns Ar count
+.Xc
+Show internet routing tables.
+Default for
+.Ar rtableid
+is 0 and
+.Ar count
+is 1.
+.Pp
+.Bl -tag -width foo -compact
+.It Cm /i
+Restrict to AF_INET.
+.It Cm /I
+Restrict to AF_INET6.
+.El
+.\" --------------------
 .It Ic show all tdbs Op Cm /f
 Display information about all IPsec SAs in the system.
 .Pp