pppd: Add defaultroute6 and related options

[ppp.git] / pppd / ipv6cp.c

diff --git a/pppd/ipv6cp.c b/pppd/ipv6cp.c
index f9badc1e0f1da422642058e95a0fd064071d2280..bda91e90afb0b38ca303c666393deec19756e223 100644 (file)
--- a/pppd/ipv6cp.c
+++ b/pppd/ipv6cp.c
@@ -177,6 +177,7 @@ ipv6cp_options ipv6cp_hisoptions[NUM_PPP];  /* Options that we ack'd */
 int no_ifaceid_neg = 0;
 
 /* local vars */
+static int default_route_set[NUM_PPP];         /* Have set up a default route */
 static int ipv6cp_is_up;
 
 /* Hook for a plugin to know when IPv6 protocol has come up */
@@ -245,6 +246,15 @@ static option_t ipv6cp_option_list[] = {
     { "ipv6cp-accept-local", o_bool, &ipv6cp_allowoptions[0].accept_local,
       "Accept peer's interface identifier for us", 1 },
 
+    { "defaultroute6", o_bool, &ipv6cp_wantoptions[0].default_route,
+      "Add default IPv6 route", OPT_ENABLE|1, &ipv6cp_allowoptions[0].default_route },
+    { "nodefaultroute6", o_bool, &ipv6cp_allowoptions[0].default_route,
+      "disable defaultroute6 option", OPT_A2CLR,
+      &ipv6cp_wantoptions[0].default_route },
+    { "-defaultroute6", o_bool, &ipv6cp_allowoptions[0].default_route,
+      "disable defaultroute6 option", OPT_ALIAS | OPT_A2CLR,
+      &ipv6cp_wantoptions[0].default_route },
+
     { "ipv6cp-use-ipaddr", o_bool, &ipv6cp_allowoptions[0].use_ip,
       "Use (default) IPv4 address as interface identifier", 1 },
 
@@ -443,6 +453,10 @@ ipv6cp_init(unit)
     wo->vj_protocol = IPV6CP_COMP;
 #endif
 
+    /*
+     * XXX This controls whether the user may use the defaultroute option.
+     */
+    ao->default_route = 1;
 }
 
 
@@ -1151,6 +1165,9 @@ ipv6_demand_conf(u)
 #endif
     if (!sifnpmode(u, PPP_IPV6, NPMODE_QUEUE))
        return 0;
+    if (wo->default_route)
+       if (sif6defaultroute(u, wo->ourid, wo->hisid))
+           default_route_set[u] = 1;
 
     notice("ipv6_demand_conf");
     notice("local  LL address %s", llv6_ntoa(wo->ourid));
@@ -1230,6 +1247,10 @@ ipv6cp_up(f)
                return;
            }
 
+           /* assign a default route through the interface if required */
+           if (ipv6cp_wantoptions[f->unit].default_route)
+               if (sif6defaultroute(f->unit, go->ourid, ho->hisid))
+                   default_route_set[f->unit] = 1;
        }
        demand_rexmit(PPP_IPV6);
        sifnpmode(f->unit, PPP_IPV6, NPMODE_PASS);
@@ -1251,6 +1272,11 @@ ipv6cp_up(f)
        }
        sifnpmode(f->unit, PPP_IPV6, NPMODE_PASS);
 
+       /* assign a default route through the interface if required */
+       if (ipv6cp_wantoptions[f->unit].default_route)
+           if (sif6defaultroute(f->unit, go->ourid, ho->hisid))
+               default_route_set[f->unit] = 1;
+
        notice("local  LL address %s", llv6_ntoa(go->ourid));
        notice("remote LL address %s", llv6_ntoa(ho->hisid));
     }