handle LCP NAK of magic-number

[l2tpns.git] / ppp.c

diff --git a/ppp.c b/ppp.c
index 349f388..244d59a 100644 (file)
--- a/ppp.c
+++ b/ppp.c
@@ -1,6 +1,6 @@
 // L2TPNS PPP Stuff
 
-char const *cvs_id_ppp = "$Id: ppp.c,v 1.90 2005/12/15 14:18:16 bodea Exp $";
+char const *cvs_id_ppp = "$Id: ppp.c,v 1.92 2006/01/19 21:00:24 bodea Exp $";
 
 #include <stdio.h>
 #include <string.h>
@@ -794,8 +794,19 @@ void processlcp(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 
                                        break;
 
+                               case 5: // Magic-Number
+                                       if (*p == ConfigNak)
+                                       {
+                                               session[s].magic = ntohl(*(uint32_t *)(o + 2));
+                                               LOG(3, s, t, "    Remote requested magic-no %x\n", session[s].magic);
+                                               if (!session[s].magic) session[s].magic = time_now; // Netgear DG814 sends zero??
+                                               break;
+                                       }
+                                       // ConfigRej: fallthrough
+
                                default:
                                        LOG(2, s, t, "LCP: remote sent %s for type %u?\n", ppp_code(*p), type);
+                                       sessionshutdown(s, "Unable to negotiate LCP.", 3, 0);
                                        break;
                        }
                        x -= length;