pppd: Separate IPv6 handling for sifup/sifdown

[ppp.git] / pppd / ipv6cp.c

diff --git a/pppd/ipv6cp.c b/pppd/ipv6cp.c
index ce9b1385a444a90f7e2b5ba61edf547d83a31f04..7e760732d42db32507b4032bdf2e71b88dbecfa1 100644 (file)
--- a/pppd/ipv6cp.c
+++ b/pppd/ipv6cp.c
@@ -135,10 +135,10 @@
  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $Id: ipv6cp.c,v 1.20 2004/11/13 02:28:15 paulus Exp $ 
+ * $Id: ipv6cp.c,v 1.21 2005/08/25 23:59:34 paulus Exp $ 
  */
 
-#define RCSID  "$Id: ipv6cp.c,v 1.20 2004/11/13 02:28:15 paulus Exp $"
+#define RCSID  "$Id: ipv6cp.c,v 1.21 2005/08/25 23:59:34 paulus Exp $"
 
 /*
  * TODO: 
@@ -151,6 +151,7 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <netdb.h>
@@ -179,6 +180,16 @@ int no_ifaceid_neg = 0;
 /* local vars */
 static int ipv6cp_is_up;
 
+/* Hook for a plugin to know when IPv6 protocol has come up */
+void (*ipv6_up_hook) __P((void)) = NULL;
+
+/* Hook for a plugin to know when IPv6 protocol has come down */
+void (*ipv6_down_hook) __P((void)) = NULL;
+
+/* Notifiers for when IPCPv6 goes up and down */
+struct notifier *ipv6_up_notifier = NULL;
+struct notifier *ipv6_down_notifier = NULL;
+
 /*
  * Callbacks for fsm code.  (CI = Configuration Information)
  */
@@ -1120,7 +1131,7 @@ ipv6_check_options()
 
     if (demand && (eui64_iszero(wo->ourid) || eui64_iszero(wo->hisid))) {
        option_error("local/remote LL address required for demand-dialling\n");
-       exit(1);
+       exit(EXIT_OPTION_ERROR);
     }
 }
 
@@ -1136,13 +1147,13 @@ ipv6_demand_conf(u)
     ipv6cp_options *wo = &ipv6cp_wantoptions[u];
 
 #if defined(__linux__) || defined(SOL2) || (defined(SVR4) && (defined(SNI) || defined(__USLC__)))
-#if defined(SOL2)
+#if defined(SOL2) || defined(__linux__)
     if (!sif6up(u))
        return 0;
 #else
     if (!sifup(u))
        return 0;
-#endif /* defined(SOL2) */
+#endif /* defined(SOL2) || defined(__linux__) */
 #endif    
     if (!sif6addr(u, wo->ourid, wo->hisid))
        return 0;
@@ -1249,10 +1260,10 @@ ipv6cp_up(f)
 #endif
 
        /* bring the interface up for IPv6 */
-#if defined(SOL2)
+#if defined(SOL2) || defined(__linux__)
        if (!sif6up(f->unit)) {
            if (debug)
-               warn("sifup failed (IPV6)");
+               warn("sif6up failed (IPV6)");
            ipv6cp_close(f->unit, "Interface configuration failed");
            return;
        }
@@ -1263,7 +1274,7 @@ ipv6cp_up(f)
            ipv6cp_close(f->unit, "Interface configuration failed");
            return;
        }
-#endif /* defined(SOL2) */
+#endif /* defined(SOL2) || defined(__linux__) */
 
 #if defined(__linux__) || defined(SOL2) || (defined(SVR4) && (defined(SNI) || defined(__USLC__)))
        if (!sif6addr(f->unit, go->ourid, ho->hisid)) {
@@ -1282,6 +1293,10 @@ ipv6cp_up(f)
     np_up(f->unit, PPP_IPV6);
     ipv6cp_is_up = 1;
 
+    notify(ipv6_up_notifier, 0);
+    if (ipv6_up_hook)
+       ipv6_up_hook();
+
     /*
      * Execute the ipv6-up script, like this:
      * /etc/ppp/ipv6-up interface tty speed local-LL remote-LL
@@ -1305,6 +1320,9 @@ ipv6cp_down(f)
 {
     IPV6CPDEBUG(("ipv6cp: down"));
     update_link_stats(f->unit);
+    notify(ipv6_down_notifier, 0);
+    if (ipv6_down_hook)
+       ipv6_down_hook();
     if (ipv6cp_is_up) {
        ipv6cp_is_up = 0;
        np_down(f->unit, PPP_IPV6);
@@ -1331,7 +1349,9 @@ ipv6cp_down(f)
        ipv6cp_clear_addrs(f->unit, 
                           ipv6cp_gotoptions[f->unit].ourid,
                           ipv6cp_hisoptions[f->unit].hisid);
-#if defined(__linux__) || (defined(SVR4) && (defined(SNI) || defined(__USLC)))
+#if defined(__linux__)
+       sif6down(f->unit);
+#elif defined(SVR4) && (defined(SNI) || defined(__USLC))
        sifdown(f->unit);
 #endif
     }
@@ -1419,7 +1439,8 @@ ipv6cp_script(script)
     argv[6] = ipparam;
     argv[7] = NULL;
 
-    ipv6cp_script_pid = run_program(script, argv, 0, ipv6cp_script_done, NULL);
+    ipv6cp_script_pid = run_program(script, argv, 0, ipv6cp_script_done,
+                                   NULL, 0);
 }
 
 /*