odhcpd: don't kill static lease entries

diff --git a/src/dhcpv4.c b/src/dhcpv4.c
index 89750b2..fdf5f68 100644 (file)
--- a/src/dhcpv4.c
+++ b/src/dhcpv4.c
@@ -611,10 +611,9 @@ static struct dhcpv4_assignment* dhcpv4_lease(struct interface *iface,
                if (assigned && a)
                        lease = a;
        } else if (msg == DHCPV4_MSG_RELEASE) {
-               if (a) {
+               if (a && a->valid_until != LONG_MAX)
                        a->valid_until = 0;
-               }
-       } else if (msg == DHCPV4_MSG_DECLINE) {
+       } else if (msg == DHCPV4_MSG_DECLINE && a->valid_until != LONG_MAX) {
                memset(a->hwaddr, 0, sizeof(a->hwaddr));
                a->valid_until = now + 3600; // Block address for 1h
        }