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-rw-r--r--babeld/babel_interface.c10
-rw-r--r--babeld/babel_interface.h5
2 files changed, 14 insertions, 1 deletions
diff --git a/babeld/babel_interface.c b/babeld/babel_interface.c
index b80bf94e..edfa2b40 100644
--- a/babeld/babel_interface.c
+++ b/babeld/babel_interface.c
@@ -486,6 +486,13 @@ interface_recalculate(struct interface *ifp)
int mtu, rc;
struct ipv6_mreq mreq;
+ if (!if_is_operative(ifp) || !CHECK_FLAG(ifp->flags, IFF_RUNNING)) {
+ interface_reset(ifp);
+ return -1;
+ }
+
+ babel_ifp->flags |= BABEL_IF_IS_UP;
+
mtu = MIN(ifp->mtu, ifp->mtu6);
/* We need to be able to fit at least two messages into a packet,
@@ -577,6 +584,9 @@ interface_reset(struct interface *ifp)
struct ipv6_mreq mreq;
babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp);
+ debugf(BABEL_DEBUG_IF, "interface reset: %s", ifp->name);
+ babel_ifp->flags &= ~BABEL_IF_IS_UP;
+
flush_interface_routes(ifp, 0);
babel_ifp->buffered = 0;
babel_ifp->bufsize = 0;
diff --git a/babeld/babel_interface.h b/babeld/babel_interface.h
index 7a6efb93..d9fb9a4a 100644
--- a/babeld/babel_interface.h
+++ b/babeld/babel_interface.h
@@ -90,12 +90,15 @@ static inline babel_interface_nfo* babel_get_if_nfo(struct interface *ifp)
#define BABEL_IF_SPLIT_HORIZON (1 << 2)
#define BABEL_IF_LQ (1 << 3)
#define BABEL_IF_IS_ENABLE (1 << 4)
+#define BABEL_IF_IS_UP (1 << 5)
static inline int
if_up(struct interface *ifp)
{
- return (if_is_up(ifp) &&
+ return (if_is_operative(ifp) &&
ifp->connected != NULL &&
+ babel_get_if_nfo(ifp) != NULL &&
+ (babel_get_if_nfo(ifp)->flags & BABEL_IF_IS_UP) &&
(babel_get_if_nfo(ifp)->flags & BABEL_IF_IS_ENABLE));
}