2 This file is part of systemd.
4 Copyright (C) 2014 Axis Communications AB. All rights reserved.
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
21 #include "ipv4ll-internal.h"
23 int arp_network_send_raw_socket(int fd, const union sockaddr_union *link,
24 const struct ether_arp *arp) {
29 if (sendto(fd, arp, sizeof(struct ether_arp), 0, &link->sa, sizeof(link->ll)) < 0)
35 int arp_network_bind_raw_socket(int index, union sockaddr_union *link) {
41 s = socket(PF_PACKET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, htons(ETH_P_ARP));
45 link->ll.sll_family = AF_PACKET;
46 link->ll.sll_ifindex = index;
47 link->ll.sll_protocol = htons(ETH_P_ARP);
48 link->ll.sll_halen = ETH_ALEN;
50 if (bind(s, &link->sa, sizeof(link->ll)) < 0) {