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-rw-r--r--src/babel.c6
-rw-r--r--src/babel.h1
2 files changed, 6 insertions, 1 deletions
diff --git a/src/babel.c b/src/babel.c
index 3c0e219..7842428 100644
--- a/src/babel.c
+++ b/src/babel.c
@@ -93,7 +93,11 @@ static void maintain_routes(gmrf_context_t *ctx) {
gp_babel_route_update(ctx, route);
- if (!route->nexthops) {
+ if (!route->nexthops && gp_babel_since(ctx, route->last_nexthop) > GP_BABEL_PURGE_TIMEOUT) {
+ gmrf_logf(ctx->gmrf, LOG_DEBUG, "node %04x%04x (%u, seqno=%04x): purging.",
+ ntohl(*(uint32_t*)route->node.id), ntohl(*(uint32_t*)(route->node.id+4)),
+ route->metric.metric, route->metric.seqno);
+
*cur = *next;
next = cur;
gp_babel_route_free(ctx, route);
diff --git a/src/babel.h b/src/babel.h
index 46c19e4..c55a3a8 100644
--- a/src/babel.h
+++ b/src/babel.h
@@ -45,6 +45,7 @@
#define GP_BABEL_UPDATE_REQUEST_TIMEOUT(interval) ((interval)*13/4) /* 3.25 intervals */
#define GP_BABEL_MAINTENANCE_INTERVAL GP_BABEL_HELLO_INTERVAL
+#define GP_BABEL_PURGE_TIMEOUT GP_BABEL_UPDATE_TIMEOUT(GP_BABEL_UPDATE_INTERVAL)
#define GP_BABEL_NEIGH_PACKET_TIMEOUT 6000