From fe8db0c5ee3365a2fc80ee7ebffa238f9a0a2ae2 Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Thu, 27 Feb 2014 01:24:05 +0100 Subject: sd-network: add new library This is similar to sd-login, but exposes the state of networkd rather than logind. Include it in libsystemd-dhcp and rename it to libsystemd-network. --- src/libsystemd-network/dhcp-protocol.h | 121 +++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) create mode 100644 src/libsystemd-network/dhcp-protocol.h (limited to 'src/libsystemd-network/dhcp-protocol.h') diff --git a/src/libsystemd-network/dhcp-protocol.h b/src/libsystemd-network/dhcp-protocol.h new file mode 100644 index 0000000000..81d36cef27 --- /dev/null +++ b/src/libsystemd-network/dhcp-protocol.h @@ -0,0 +1,121 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +#pragma once + +/*** + This file is part of systemd. + + Copyright (C) 2013 Intel Corporation. All rights reserved. + + 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 +#include + +#include "macro.h" +#include "sparse-endian.h" + +struct DHCPMessage { + uint8_t op; + uint8_t htype; + uint8_t hlen; + uint8_t hops; + be32_t xid; + be16_t secs; + be16_t flags; + be32_t ciaddr; + be32_t yiaddr; + be32_t siaddr; + be32_t giaddr; + uint8_t chaddr[16]; + uint8_t sname[64]; + uint8_t file[128]; +} _packed_; + +typedef struct DHCPMessage DHCPMessage; + +struct DHCPPacket { + struct iphdr ip; + struct udphdr udp; + DHCPMessage dhcp; +} _packed_; + +typedef struct DHCPPacket DHCPPacket; + +#define DHCP_IP_SIZE (int32_t)(sizeof(struct iphdr)) +#define DHCP_IP_UDP_SIZE (int32_t)(sizeof(struct udphdr) + DHCP_IP_SIZE) +#define DHCP_MESSAGE_SIZE (int32_t)(sizeof(DHCPMessage)) +#define DHCP_MIN_OPTIONS_SIZE 312 + +enum { + DHCP_PORT_SERVER = 67, + DHCP_PORT_CLIENT = 68, +}; + +enum DHCPState { + DHCP_STATE_INIT = 0, + DHCP_STATE_SELECTING = 1, + DHCP_STATE_INIT_REBOOT = 2, + DHCP_STATE_REBOOTING = 3, + DHCP_STATE_REQUESTING = 4, + DHCP_STATE_BOUND = 5, + DHCP_STATE_RENEWING = 6, + DHCP_STATE_REBINDING = 7, +}; + +typedef enum DHCPState DHCPState; + +enum { + BOOTREQUEST = 1, + BOOTREPLY = 2, +}; + +enum { + DHCP_DISCOVER = 1, + DHCP_OFFER = 2, + DHCP_REQUEST = 3, + DHCP_DECLINE = 4, + DHCP_ACK = 5, + DHCP_NAK = 6, + DHCP_RELEASE = 7, +}; + +enum { + DHCP_OVERLOAD_FILE = 1, + DHCP_OVERLOAD_SNAME = 2, +}; + +enum { + DHCP_OPTION_PAD = 0, + DHCP_OPTION_SUBNET_MASK = 1, + DHCP_OPTION_ROUTER = 3, + DHCP_OPTION_DOMAIN_NAME_SERVER = 6, + DHCP_OPTION_HOST_NAME = 12, + DHCP_OPTION_DOMAIN_NAME = 15, + DHCP_OPTION_INTERFACE_MTU = 26, + DHCP_OPTION_NTP_SERVER = 42, + DHCP_OPTION_REQUESTED_IP_ADDRESS = 50, + DHCP_OPTION_IP_ADDRESS_LEASE_TIME = 51, + DHCP_OPTION_OVERLOAD = 52, + DHCP_OPTION_MESSAGE_TYPE = 53, + DHCP_OPTION_SERVER_IDENTIFIER = 54, + DHCP_OPTION_PARAMETER_REQUEST_LIST = 55, + DHCP_OPTION_MAXIMUM_MESSAGE_SIZE = 57, + DHCP_OPTION_RENEWAL_T1_TIME = 58, + DHCP_OPTION_REBINDING_T2_TIME = 59, + DHCP_OPTION_CLIENT_IDENTIFIER = 61, + DHCP_OPTION_END = 255, +}; -- cgit v1.2.3-54-g00ecf