diff options
| -rw-r--r-- | src/libsystemd-network/sd-dhcp-server.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/libsystemd-network/sd-dhcp-server.c b/src/libsystemd-network/sd-dhcp-server.c index cb014e2dfc..4ce10549d6 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) - be32toh(server->pool_start); @@ -743,6 +743,31 @@ 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; |