I rewrote the interface handling code, so that it supports multiple

addresses per interface (needed for example for IPv6 support).

Visible changes:

o  struct iface now contains a list of all interface addresses (represented
   by struct ifa), iface->addr points to the primary address (if any).
o  Interface has IF_UP set iff it's up and it has a primary address.
o  IF_UP is now independent on IF_IGNORED (i.e., you need to test IF_IGNORED
   in the protocols; I've added this, but please check).
o  The if_notify_change hook has been simplified (only one interface pointer
   etc.).
o  Introduced a ifa_notify_change hook. (For now, only the Direct protocol
   does use it -- it's wise to just listen to device routes in all other
   protocols.)
o  Removed IF_CHANGE_FLAGS notifier flag (it was meaningless anyway).
o  Updated all the code except netlink (I'll look at it tomorrow) to match
   the new semantics (please look at your code to ensure I did it right).

Things to fix:

o  Netlink.
o  Make krt-iface interpret "eth0:1"-type aliases as secondary addresses.

1 files changed, 7 insertions, 3 deletions

diff --git a/sysdep/linux/netlink/netlink.c b/sysdep/linux/netlink/netlink.c
index 31dd608d..5a15607a 100644
--- a/sysdep/linux/netlink/netlink.c
+++ b/sysdep/linux/netlink/netlink.c
@@ -407,12 +407,16 @@ krt_if_scan(struct kif_proto *p)
  *	Routes
  */
 
-int					/* FIXME: Check use of this function in krt.c */
+int
 krt_capable(rte *e)
 {
   rta *a = e->attrs;
 
-  if (a->cast != RTC_UNICAST)	/* FIXME: For IPv6, we might support anycasts as well */
+  if (a->cast != RTC_UNICAST
+#ifdef IPV6
+      && a->cast != RTC_ANYCAST
+#endif
+      )
     return 0;
   if (a->source == RTS_DEVICE)	/* Kernel takes care of device routes itself */
     return 0;
@@ -597,7 +601,7 @@ nl_parse_route(struct krt_proto *p, struct nlmsghdr *h, int scan)
   net = net_get(&master_table, dst, i->rtm_dst_len);
   ra.proto = &p->p;
   ra.source = RTS_INHERIT;
-  ra.scope = SCOPE_UNIVERSE;	/* FIXME: Use kernel scope? */
+  ra.scope = SCOPE_UNIVERSE;
   ra.cast = RTC_UNICAST;
   ra.flags = ra.aflags = 0;
   ra.from = IPA_NONE;