From 764aad6258eec3bd4ae62ea341ea507bd69ce628 Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Wed, 21 Jan 2015 21:23:47 +0100 Subject: network: dhcp - split out the duid structure into a new header file We will use the same in both dhcp4 and dhcp6. --- src/libsystemd-network/dhcp-identifier.h | 61 ++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 src/libsystemd-network/dhcp-identifier.h (limited to 'src/libsystemd-network/dhcp-identifier.h') diff --git a/src/libsystemd-network/dhcp-identifier.h b/src/libsystemd-network/dhcp-identifier.h new file mode 100644 index 0000000000..af95f074ef --- /dev/null +++ b/src/libsystemd-network/dhcp-identifier.h @@ -0,0 +1,61 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +#pragma once + +/*** + This file is part of systemd. + + Copyright (C) 2015 Tom Gundersen + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include + +#include "sparse-endian.h" +#include "sd-id128.h" + +/* RFC 3315 section 9.1: + * A DUID can be no more than 128 octets long (not including the type code). + */ +#define MAX_DUID_LEN 128 + +struct duid { + uint16_t type; + union { + struct { + /* DHCP6_DUID_LLT */ + uint16_t htype; + uint32_t time; + uint8_t haddr[0]; + } _packed_ llt; + struct { + /* DHCP6_DUID_EN */ + uint32_t pen; + uint8_t id[8]; + } _packed_ en; + struct { + /* DHCP6_DUID_LL */ + int16_t htype; + uint8_t haddr[0]; + } _packed_ ll; + struct { + /* DHCP6_DUID_UUID */ + sd_id128_t uuid; + } _packed_ uuid; + struct { + uint8_t data[MAX_DUID_LEN]; + } _packed_ raw; + }; +} _packed_; -- cgit v1.2.3-54-g00ecf