From 111213f0b66cff8f562f7d9117c9080a9882129e Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Thu, 4 Mar 1999 19:00:31 +0000
Subject: Fixed processing of !krt_capable() routes. Converted device route
 decisions to the krt_capable mechanism as well.

---
 sysdep/linux/netlink/netlink.c |  6 ++++--
 sysdep/unix/krt-set.c          | 25 ++++++++-----------------
 sysdep/unix/krt.c              | 11 +++++------
 3 files changed, 17 insertions(+), 25 deletions(-)

diff --git a/sysdep/linux/netlink/netlink.c b/sysdep/linux/netlink/netlink.c
index 64e3aa2..4aadc85 100644
--- a/sysdep/linux/netlink/netlink.c
+++ b/sysdep/linux/netlink/netlink.c
@@ -430,6 +430,8 @@ krt_capable(rte *e)
 
   if (a->cast != RTC_UNICAST)	/* FIXME: For IPv6, we might support anycasts as well */
     return 0;
+  if (a->source == RTS_DEVICE)	/* Kernel takes care of device routes itself */
+    return 0;
   switch (a->dest)
     {
     case RTD_ROUTER:
@@ -501,9 +503,9 @@ nl_send_route(rte *e, int new)
 void
 krt_set_notify(struct proto *p, net *n, rte *new, rte *old)
 {
-  if (old && old->attrs->source == RTS_DEVICE)	/* Device routes are left to the kernel */
+  if (old && !krt_capable(old))
     old = NULL;
-  if (new && new->attrs->source == RTS_DEVICE)
+  if (new && !krt_capable(new))
     new = NULL;
   if (old && new && old->attrs->tos == new->attrs->tos)
     {
diff --git a/sysdep/unix/krt-set.c b/sysdep/unix/krt-set.c
index 2165255..ca00a2c 100644
--- a/sysdep/unix/krt-set.c
+++ b/sysdep/unix/krt-set.c
@@ -26,6 +26,10 @@ krt_capable(rte *e)
 {
   rta *a = e->attrs;
 
+#ifdef CONFIG_AUTO_ROUTES
+  if (a->source == RTS_DEVICE)
+    return 0;
+#endif
   return
     a->cast == RTC_UNICAST &&
     (a->dest == RTD_ROUTER
@@ -37,18 +41,6 @@ krt_capable(rte *e)
     !a->tos;
 }
 
-static inline int
-krt_capable_op(rte *e)
-{
-  rta *a = e->attrs;
-
-#ifdef CONFIG_AUTO_ROUTES
-  if (a->source == RTS_DEVICE)
-    return 0;
-#endif
-  return krt_capable(e);
-}
-
 static void
 krt_ioctl(int ioc, rte *e, char *name)
 {
@@ -84,12 +76,12 @@ krt_ioctl(int ioc, rte *e, char *name)
     log(L_ERR "%s(%I/%d): %m", name, net->n.prefix, net->n.pxlen);
 }
 
-static void
+static inline void
 krt_remove_route(rte *old)
 {
   net *net = old->net;
 
-  if (!krt_capable_op(old))
+  if (!krt_capable(old))
     {
       DBG("krt_remove_route(ignored %I/%d)\n", net->n.prefix, net->n.pxlen);
       return;
@@ -98,12 +90,12 @@ krt_remove_route(rte *old)
   krt_ioctl(SIOCDELRT, old, "SIOCDELRT");
 }
 
-static void
+static inline void
 krt_add_route(rte *new)
 {
   net *net = new->net;
 
-  if (!krt_capable_op(new))
+  if (!krt_capable(new))
     {
       DBG("krt_add_route(ignored %I/%d)\n", net->n.prefix, net->n.pxlen);
       return;
@@ -115,7 +107,6 @@ krt_add_route(rte *new)
 void
 krt_set_notify(struct proto *x, net *net, rte *new, rte *old)
 {
-  /* FIXME: Fold remove/add route here */
   if (old)
     krt_remove_route(old);
   if (new)
diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c
index aa875cc..9ad4237 100644
--- a/sysdep/unix/krt.c
+++ b/sysdep/unix/krt.c
@@ -88,12 +88,11 @@ krt_got_route(struct krt_proto *p, rte *e)
       return;
     }
 
-  old = net->routes;
-  if (old && !krt_capable(old))
-    old = NULL;
-  if (old)
+  if (old = net->routes)
     {
-      if (krt_uptodate(e, net->routes))
+      if (!krt_capable(old))
+	verdict = krt_capable(e) ? KRF_DELETE : KRF_SEEN;
+      else if (krt_uptodate(e, net->routes))
 	verdict = KRF_SEEN;
       else
 	verdict = KRF_UPDATE;
@@ -156,7 +155,7 @@ krt_prune(struct krt_proto *p)
 		  DBG("krt_prune: removing inherited %I/%d\n", n->n.prefix, n->n.pxlen);
 		  rte_update(n, pp, NULL);
 		}
-	      else
+	      else if (krt_capable(new))
 		{
 		  DBG("krt_prune: reinstalling %I/%d\n", n->n.prefix, n->n.pxlen);
 		  krt_set_notify(pp, n, new, NULL);
-- 
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