diff options
Diffstat (limited to 'arp.c')
| -rw-r--r-- | arp.c | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -1,9 +1,11 @@ +// SPDX-License-Identifier: AGPL-3.0-or-later + /* PASST - Plug A Simple Socket Transport * * arp.c - ARP implementation * + * Copyright (c) 2020-2021 Red Hat GmbH * Author: Stefano Brivio <sbrivio@redhat.com> - * License: GPLv2 * */ @@ -23,6 +25,7 @@ #include "passt.h" #include "dhcp.h" #include "util.h" +#include "tap.h" /** * struct arpmsg - 802.2 ARP IPv4 payload @@ -39,7 +42,7 @@ struct arpmsg { } __attribute__((__packed__)); /** - * dhcp() - Check if this is an ARP message, reply as needed + * arp() - Check if this is an ARP message, reply as needed * @c: Execution context * @len: Total L2 packet length * @eh: Packet buffer, Ethernet header @@ -74,9 +77,11 @@ int arp(struct ctx *c, unsigned len, struct ethhdr *eh) len = sizeof(*eh) + sizeof(*ah) + sizeof(*am); memcpy(eh->h_dest, eh->h_source, ETH_ALEN); + /* HACK */ + memcpy(c->mac_guest, eh->h_source, ETH_ALEN); memcpy(eh->h_source, c->mac, ETH_ALEN); - if (send(c->fd_unix, eh, len, 0) < 0) + if (tap_send(c->fd_unix, eh, len, 0) < 0) perror("ARP: send"); return 1; |