pfctl -ss: show rt_addr

[YASUOKA Masahiko]

Hi,

I often use "route-to" for DSR or balancing routes.  It seems there is
no way to know which route is selected for the pf state.

The diff following makes "pfctl -ss" show the route address with
square brackets if any.

example:

  all tcp 10.0.0.101:8080 [10.0.0.12] <- 10.1.0.100:45482       
ESTABLISHED:ESTABLISHED

  all tcp 10.0.0.165:35691 -> 192.168.0.156:22 [10.0.0.2]       
ESTABLISHED:ESTABLISHED

ok? comment?

Index: sbin/pfctl/pf_print_state.c
===================================================================
RCS file: /var/cvs/openbsd/src/sbin/pfctl/pf_print_state.c,v
retrieving revision 1.68
diff -u -p -r1.68 pf_print_state.c
--- sbin/pfctl/pf_print_state.c 7 Sep 2018 10:29:22 -0000       1.68
+++ sbin/pfctl/pf_print_state.c 1 Feb 2019 08:53:35 -0000
@@ -241,6 +241,11 @@ print_state(struct pfsync_state *s, int 
                    sk->rdomain, pn, opts);
                printf(")");
        }
+       if (s->direction == PF_IN && !PF_AZERO(&s->rt_addr, sk->af)) {
+               printf(" [");
+               print_addr_str(sk->af, &s->rt_addr);
+               printf("]");
+       }
        if (s->direction == PF_OUT || (afto && s->direction == PF_IN))
                printf(" -> ");
        else
@@ -254,6 +259,11 @@ print_state(struct pfsync_state *s, int 
                print_host(&sk->addr[idx], sk->port[idx], sk->af,
                    sk->rdomain, pn, opts);
                printf(")");
+       }
+       if (s->direction == PF_OUT && !PF_AZERO(&s->rt_addr, nk->af)) {
+               printf(" [");
+               print_addr_str(nk->af, &s->rt_addr);
+               printf("]");
        }
 
        printf("    ");