svn commit: r341642 - head/sys/netpfil/pf

[Kristof Provost]

Author: kp
Date: Thu Dec  6 18:58:54 2018
New Revision: 341642
URL: https://svnweb.freebsd.org/changeset/base/341642

Log:
  pf: add a comment describing why do we call pf_map_addr again if port
  selection process fails
  
  Obtained from:	OpenBSD

Modified:
  head/sys/netpfil/pf/pf_lb.c

Modified: head/sys/netpfil/pf/pf_lb.c
==============================================================================
--- head/sys/netpfil/pf/pf_lb.c	Thu Dec  6 18:21:48 2018	(r341641)
+++ head/sys/netpfil/pf/pf_lb.c	Thu Dec  6 18:58:54 2018	(r341642)
@@ -293,6 +293,10 @@ pf_get_sport(sa_family_t af, u_int8_t proto, struct pf
 		switch (r->rpool.opts & PF_POOL_TYPEMASK) {
 		case PF_POOL_RANDOM:
 		case PF_POOL_ROUNDROBIN:
+			/*
+			 * pick a different source address since we're out
+			 * of free port choices for the current one.
+			 */
 			if (pf_map_addr(af, r, saddr, naddr, &init_addr, sn))
 				return (1);
 			break;