---
src/libsystemd-network/sd-dhcp-server.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/src/libsystemd-network/sd-dhcp-server.c
b/src/libsystemd-network/sd-dhcp-server.c
index 3ed93d8..2d789be 100644
--- a/src/libsystemd-network/sd-dhcp-server.c
+++ b/src/libsystemd-network/sd-dhcp-server.c
@@ -544,7 +544,7 @@ static int get_pool_offset(sd_dhcp_server *server, be32_t
requested_ip) {
if (be32toh(requested_ip) < be32toh(server->pool_start) ||
be32toh(requested_ip) >= be32toh(server->pool_start) +
- + server->pool_size)
+ + server->pool_size)
return -EINVAL;
return (be32toh(requested_ip) -
@@ -740,6 +740,31 @@ int dhcp_server_handle_message(sd_dhcp_server *server,
DHCPMessage *message,
break;
}
+ case DHCP_RELEASE: {
+ int pool_offset;
+
+ log_dhcp_server(server, "RELEASE (0x%x)",
+ be32toh(req->message->xid));
+
+ if (!existing_lease)
+ return 0;
+
+ if (existing_lease->address != req->message->ciaddr)
+ return 0;
+
+ pool_offset = get_pool_offset(server, req->message->ciaddr);
+ if (pool_offset < 0)
+ return 0;
+
+ if (server->bound_leases[pool_offset] == existing_lease) {
+ server->bound_leases[pool_offset] = NULL;
+ hashmap_remove(server->leases_by_client_id,
existing_lease);
+ dhcp_lease_free(existing_lease);
+
+ return 1;
+ } else
+ return 0;
+ }
}
return 0;
--
1.9.0
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