From 186d0be47e4e7f49a3df05eb1ff3aa729f0a89a8 Mon Sep 17 00:00:00 2001
From: Brian Somers <brian@FreeBSD.org>
Date: Sat, 28 Jun 1997 01:34:03 +0000
Subject: [PATCH] Deal with HISADDR/MYADDR in filter rules. Mostly submitted
 by: kfurge@worldnet.att.net

Allow MYADDR in add/delete commands to facilitate
dynamic additions of a loopback route to MYADDR.
---
 usr.sbin/ppp/command.c | 24 +++++++++++++-----------
 usr.sbin/ppp/filter.c  | 12 ++++++++----
 2 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/usr.sbin/ppp/command.c b/usr.sbin/ppp/command.c
index 51b2191b33db..5afead54e438 100644
--- a/usr.sbin/ppp/command.c
+++ b/usr.sbin/ppp/command.c
@@ -17,7 +17,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
- * $Id: command.c,v 1.62 1997/06/25 02:04:35 brian Exp $
+ * $Id: command.c,v 1.63 1997/06/25 19:29:59 brian Exp $
  *
  */
 #include <sys/types.h>
@@ -258,17 +258,13 @@ char **argv;
      TtyOldMode();
      if(argc > 0) {
        /* substitute pseudo args */
-       for (i=1; i<argc; i++) {
-         if (strcasecmp(argv[i], "HISADDR") == 0) {
+       for (i=1; i<argc; i++)
+         if (strcasecmp(argv[i], "HISADDR") == 0)
            argv[i] = strdup(inet_ntoa(IpcpInfo.his_ipaddr));
-         }
-         if (strcasecmp(argv[i], "INTERFACE") == 0) {
+         else if (strcasecmp(argv[i], "INTERFACE") == 0)
            argv[i] = strdup(IfDevName);
-         }
-         if (strcasecmp(argv[i], "MYADDR") == 0) {
+         else if (strcasecmp(argv[i], "MYADDR") == 0)
            argv[i] = strdup(inet_ntoa(IpcpInfo.want_ipaddr));
-         }
-       }
        (void)execvp(argv[0], argv);
      }
      else
@@ -1311,7 +1307,10 @@ char **argv;
   struct in_addr dest, gateway, netmask;
 
   if (argc == 3) {
-    dest = GetIpAddr(argv[0]);
+    if (strcasecmp(argv[0], "MYADDR") == 0)
+      dest = IpcpInfo.want_ipaddr;
+    else
+      dest = GetIpAddr(argv[0]);
     netmask = GetIpAddr(argv[1]);
     if (strcasecmp(argv[2], "HISADDR") == 0)
       gateway = IpcpInfo.his_ipaddr;
@@ -1335,7 +1334,10 @@ char **argv;
   if (argc == 1 && strcasecmp(argv[0], "all") == 0)
     DeleteIfRoutes(0);
   else if (argc > 0 && argc < 4) {
-    dest = GetIpAddr(argv[0]);
+    if (strcasecmp(argv[0], "MYADDR") == 0)
+      dest = IpcpInfo.want_ipaddr;
+    else
+      dest = GetIpAddr(argv[0]);
     netmask.s_addr = INADDR_ANY;
     if (argc > 1) {
       if (strcasecmp(argv[1], "HISADDR") == 0)
diff --git a/usr.sbin/ppp/filter.c b/usr.sbin/ppp/filter.c
index 305573e52c4f..60e0506891f3 100644
--- a/usr.sbin/ppp/filter.c
+++ b/usr.sbin/ppp/filter.c
@@ -17,7 +17,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
- * $Id: filter.c,v 1.9 1997/05/10 01:22:08 brian Exp $
+ * $Id: filter.c,v 1.10 1997/06/09 03:27:19 brian Exp $
  *
  *	TODO: Shoud send ICMP error message when we discard packets.
  */
@@ -37,6 +37,7 @@
 #include "filter.h"
 #include "loadalias.h"
 #include "vars.h"
+#include "ipcp.h"
 
 static struct filterent filterdata;
 
@@ -60,7 +61,6 @@ struct in_addr *paddr;
 struct in_addr *pmask;
 int *pwidth;
 {
-  u_long addr;
   int bits;
   char *cp, *wp;
 
@@ -72,8 +72,12 @@ int *pwidth;
   pmask->s_addr = 0xffffffff;	/* Assume 255.255.255.255 as default */
   cp = index(*argv, '/');
   if (cp) *cp++ = '\0';
-  addr = inet_addr(*argv);
-  paddr->s_addr = addr;
+  if (strcasecmp(*argv, "HISADDR") == 0)
+    *paddr = IpcpInfo.his_ipaddr;
+  else if (strcasecmp(*argv, "MYADDR") == 0)
+    *paddr = IpcpInfo.want_ipaddr;
+  else
+    paddr->s_addr = inet_addr(*argv);
   if (cp && *cp) {
     bits = strtol(cp, &wp, 0);
     if (cp == wp || bits < 0 || bits > 32) {