fib: Set the GLEAN flag on attached export routes so that the SAS works
correctly.
Type: fix
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: I4bc2eb394a8f9d01c5a12de2ce963c22209d5439
diff --git a/src/vnet/fib/fib_entry_src.c b/src/vnet/fib/fib_entry_src.c
index 1285734..a4a4f1a 100644
--- a/src/vnet/fib/fib_entry_src.c
+++ b/src/vnet/fib/fib_entry_src.c
@@ -1497,52 +1497,34 @@
fib_route_attached_cross_table (const fib_entry_t *fib_entry,
const fib_route_path_t *rpath)
{
- /*
- * - All zeros next-hop
- * - a valid interface
- * - entry's fib index not equeal to interface's index
- */
- if (ip46_address_is_zero(&rpath->frp_addr) &&
- (~0 != rpath->frp_sw_if_index) &&
- !(rpath->frp_flags & (FIB_ROUTE_PATH_DVR | FIB_ROUTE_PATH_UDP_ENCAP)) &&
- (fib_entry->fe_fib_index !=
- fib_table_get_index_for_sw_if_index(fib_entry_get_proto(fib_entry),
- rpath->frp_sw_if_index)))
- {
- return (!0);
- }
- return (0);
-}
+ const fib_prefix_t *pfx = &fib_entry->fe_prefix;
-/*
- * Return true if the path is attached
- */
-static inline int
-fib_path_is_attached (const fib_route_path_t *rpath)
-{
- /*
- * DVR paths are not attached, since we are not playing the
- * L3 game with these
- */
- if (rpath->frp_flags & FIB_ROUTE_PATH_DVR)
+ switch (pfx->fp_proto)
{
- return (0);
+ case FIB_PROTOCOL_MPLS:
+ /* MPLS routes are never imported/exported */
+ return (0);
+ case FIB_PROTOCOL_IP6:
+ /* Ignore link local addresses these also can't be imported/exported */
+ if (ip6_address_is_link_local_unicast (&pfx->fp_addr.ip6))
+ {
+ return (!0);
+ }
+ break;
+ case FIB_PROTOCOL_IP4:
+ break;
}
/*
- * - All zeros next-hop
- * - a valid interface
+ * an attached path and entry's fib index not equal to interface's index
*/
- if (ip46_address_is_zero(&rpath->frp_addr) &&
- (~0 != rpath->frp_sw_if_index))
+ if (fib_route_path_is_attached(rpath) &&
+ fib_entry->fe_fib_index !=
+ fib_table_get_index_for_sw_if_index(fib_entry_get_proto(fib_entry),
+ rpath->frp_sw_if_index))
{
return (!0);
}
- else if (rpath->frp_flags & FIB_ROUTE_PATH_ATTACHED ||
- rpath->frp_flags & FIB_ROUTE_PATH_GLEAN)
- {
- return (!0);
- }
return (0);
}
@@ -1580,7 +1562,7 @@
if ((esrc->fes_src == FIB_SOURCE_API) ||
(esrc->fes_src == FIB_SOURCE_CLI))
{
- if (fib_path_is_attached(rpath))
+ if (fib_route_path_is_attached(rpath))
{
esrc->fes_entry_flags |= FIB_ENTRY_FLAG_ATTACHED;
}
diff --git a/src/vnet/fib/fib_table.c b/src/vnet/fib/fib_table.c
index eaeee5b..7cc989d 100644
--- a/src/vnet/fib/fib_table.c
+++ b/src/vnet/fib/fib_table.c
@@ -531,6 +531,11 @@
fib_prefix_normalize(prefix, &path->frp_connected);
}
}
+ else if (fib_route_path_is_attached(path))
+ {
+ path->frp_flags |= FIB_ROUTE_PATH_GLEAN;
+ fib_prefix_normalize(prefix, &path->frp_connected);
+ }
if (*eflags & FIB_ENTRY_FLAG_DROP)
{
path->frp_flags |= FIB_ROUTE_PATH_DROP;
diff --git a/src/vnet/fib/fib_types.c b/src/vnet/fib/fib_types.c
index e2b8df7..eab5ca2 100644
--- a/src/vnet/fib/fib_types.c
+++ b/src/vnet/fib/fib_types.c
@@ -752,3 +752,36 @@
return (1);
}
+
+/*
+ * Return true if the path is attached
+ */
+int
+fib_route_path_is_attached (const fib_route_path_t *rpath)
+{
+ /*
+ * DVR paths are not attached, since we are not playing the
+ * L3 game with these
+ */
+ if (rpath->frp_flags & (FIB_ROUTE_PATH_DVR |
+ FIB_ROUTE_PATH_UDP_ENCAP))
+ {
+ return (0);
+ }
+
+ /*
+ * - All zeros next-hop
+ * - a valid interface
+ */
+ if (ip46_address_is_zero(&rpath->frp_addr) &&
+ (~0 != rpath->frp_sw_if_index))
+ {
+ return (!0);
+ }
+ else if (rpath->frp_flags & FIB_ROUTE_PATH_ATTACHED ||
+ rpath->frp_flags & FIB_ROUTE_PATH_GLEAN)
+ {
+ return (!0);
+ }
+ return (0);
+}
diff --git a/src/vnet/fib/fib_types.h b/src/vnet/fib/fib_types.h
index 18362e0..55b404b 100644
--- a/src/vnet/fib/fib_types.h
+++ b/src/vnet/fib/fib_types.h
@@ -619,6 +619,11 @@
*/
extern u8 * format_fib_route_path(u8 *s, va_list *ap);
+/*
+ * Return true if the path is attached
+ */
+extern int fib_route_path_is_attached (const fib_route_path_t *rpath);
+
/**
* A help string to list the FIB path options
*/