From: Markus Becker <mab@comnets.uni-bremen.de>
Date: Wed, 14 Mar 2012 15:48:44 +0000 (+0100)
Subject: pppd: Notify IPv6 up/down as we do for IPv4
X-Git-Tag: ppp-2.4.7~40
X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=commitdiff_plain;h=845cda8fa18939cf56e60b073f63a7efa65336fc

pppd: Notify IPv6 up/down as we do for IPv4

This adds support for notification of IPv6 up/down, mainly for the sake of
NetworkManager.

Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/pppd/ipv6cp.c b/pppd/ipv6cp.c
index 4a09c9a..4421d99 100644
--- a/pppd/ipv6cp.c
+++ b/pppd/ipv6cp.c
@@ -179,6 +179,16 @@ 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)
  */
@@ -1282,6 +1292,10 @@ 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 +1319,9 @@ 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);
diff --git a/pppd/pppd.h b/pppd/pppd.h
index 936cc60..2cd7914 100644
--- a/pppd/pppd.h
+++ b/pppd/pppd.h
@@ -258,8 +258,10 @@ extern struct notifier *pidchange;   /* for notifications of pid changing */
 extern struct notifier *phasechange; /* for notifications of phase changes */
 extern struct notifier *exitnotify;  /* for notification that we're exiting */
 extern struct notifier *sigreceived; /* notification of received signal */
-extern struct notifier *ip_up_notifier; /* IPCP has come up */
-extern struct notifier *ip_down_notifier; /* IPCP has gone down */
+extern struct notifier *ip_up_notifier;     /* IPCP has come up */
+extern struct notifier *ip_down_notifier;   /* IPCP has gone down */
+extern struct notifier *ipv6_up_notifier;   /* IPV6CP has come up */
+extern struct notifier *ipv6_down_notifier; /* IPV6CP has gone down */
 extern struct notifier *auth_up_notifier; /* peer has authenticated */
 extern struct notifier *link_down_notifier; /* link has gone down */
 extern struct notifier *fork_notifier;	/* we are a new child process */
@@ -727,6 +729,8 @@ extern int (*allowed_address_hook) __P((u_int32_t addr));
 extern void (*ip_up_hook) __P((void));
 extern void (*ip_down_hook) __P((void));
 extern void (*ip_choose_hook) __P((u_int32_t *));
+extern void (*ipv6_up_hook) __P((void));
+extern void (*ipv6_down_hook) __P((void));
 
 extern int (*chap_check_hook) __P((void));
 extern int (*chap_passwd_hook) __P((char *user, char *passwd));