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5c1d3fc93d
Implements IPv4LL with respect to RFC 3927 (http://tools.ietf.org/rfc/rfc3927.txt) and integrates it with networkd. Majority of the IPv4LL state machine is taken from avahi (http://avahi.org/) project's autoip. IPv4LL can be enabled by IPv4LL=yes under [Network] section of .network file. IPv4LL works independent of DHCP but if DHCP lease is aquired, then LL address will be dropped. [tomegun: removed a trailing newline and a compiler warning]
39 lines
1.5 KiB
C
39 lines
1.5 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright (C) 2014 Axis Communications AB. All rights reserved.
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <netinet/if_ether.h>
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#include "sparse-endian.h"
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#include "socket-util.h"
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int arp_network_bind_raw_socket(int index, union sockaddr_union *link);
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int arp_network_send_raw_socket(int fd, const union sockaddr_union *link,
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const struct ether_arp *arp);
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void arp_packet_init(struct ether_arp *arp);
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void arp_packet_probe(struct ether_arp *arp, be32_t pa, const struct ether_addr *ha);
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void arp_packet_announcement(struct ether_arp *arp, be32_t pa, const struct ether_addr *ha);
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int arp_packet_verify_headers(struct ether_arp *arp);
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#define log_ipv4ll(ll, fmt, ...) log_meta(LOG_DEBUG, __FILE__, __LINE__, __func__, "IPv4LL: " fmt, ##__VA_ARGS__)
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