projects / thirdparty / systemd.git / blame
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| 5f404b1e PF |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| 2 | ||
| 3 | #pragma once | |
| 4 | ||
| 5 | /*** | |
| 6 | This file is part of systemd. | |
| 7 | ||
| 8 | Copyright (C) 2013 Intel Corporation. All rights reserved. | |
| 9 | ||
| 10 | systemd is free software; you can redistribute it and/or modify it | |
| 11 | under the terms of the GNU Lesser General Public License as published by | |
| 12 | the Free Software Foundation; either version 2.1 of the License, or | |
| 13 | (at your option) any later version. | |
| 14 | ||
| 15 | systemd is distributed in the hope that it will be useful, but | |
| 16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | Lesser General Public License for more details. | |
| 19 | ||
| 20 | You should have received a copy of the GNU Lesser General Public License | |
| 21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
| 22 | ***/ | |
| 23 | ||
| 24 | #include <netinet/udp.h> | |
| 25 | #include <netinet/ip.h> | |
| 26 | #include <stdint.h> | |
| 27 | ||
| 28 | #include "macro.h" | |
| 29 | #include "sparse-endian.h" | |
| 30 | ||
| 31 | struct DHCPMessage { | |
| 32 | uint8_t op; | |
| 33 | uint8_t htype; | |
| 34 | uint8_t hlen; | |
| 35 | uint8_t hops; | |
| 36 | be32_t xid; | |
| 37 | be16_t secs; | |
| 38 | be16_t flags; | |
| 39 | uint32_t ciaddr; | |
| 40 | uint32_t yiaddr; | |
| 41 | uint32_t siaddr; | |
| 42 | uint32_t giaddr; | |
| 43 | uint8_t chaddr[16]; | |
| 44 | uint8_t sname[64]; | |
| 45 | uint8_t file[128]; | |
| 46 | } _packed_; | |
| 47 | ||
| 48 | typedef struct DHCPMessage DHCPMessage; | |
| 49 | ||
| 50 | struct DHCPPacket { | |
| 51 | struct iphdr ip; | |
| 52 | struct udphdr udp; | |
| 53 | DHCPMessage dhcp; | |
| 54 | } _packed_; | |
| 55 | ||
| 56 | typedef struct DHCPPacket DHCPPacket; | |
| 57 | ||
| 58 | enum DHCPState { | |
| 59 | DHCP_STATE_INIT = 0, | |
| 60 | DHCP_STATE_SELECTING = 1, | |
| 61 | DHCP_STATE_INIT_REBOOT = 2, | |
| 62 | DHCP_STATE_REBOOTING = 3, | |
| 63 | DHCP_STATE_REQUESTING = 4, | |
| 64 | DHCP_STATE_BOUND = 5, | |
| 65 | DHCP_STATE_RENEWING = 6, | |
| 66 | DHCP_STATE_REBINDING = 7, | |
| 67 | }; | |
| 68 | ||
| 69 | typedef enum DHCPState DHCPState; | |
| 70 | ||
| 71 | enum { | |
| 72 | BOOTREQUEST = 1, | |
| 73 | BOOTREPLY = 2, | |
| 74 | }; | |
| 75 | ||
| 76 | enum { | |
| 77 | DHCP_DISCOVER = 1, | |
| 78 | DHCP_OFFER = 2, | |
| 79 | DHCP_REQUEST = 3, | |
| 80 | DHCP_DECLINE = 4, | |
| 81 | DHCP_ACK = 5, | |
| 82 | DHCP_NAK = 6, | |
| 83 | DHCP_RELEASE = 7, | |
| 84 | }; | |
| 85 | ||
| 86 | enum { | |
| 87 | DHCP_OVERLOAD_FILE = 1, | |
| 88 | DHCP_OVERLOAD_SNAME = 2, | |
| 89 | }; | |
| 90 | ||
| 91 | enum { | |
| 92 | DHCP_OPTION_PAD = 0, | |
| 93 | DHCP_OPTION_SUBNET_MASK = 1, | |
| 94 | DHCP_OPTION_ROUTER = 3, | |
| 95 | DHCP_OPTION_DOMAIN_NAME_SERVER = 6, | |
| 96 | DHCP_OPTION_HOST_NAME = 12, | |
| 97 | DHCP_OPTION_DOMAIN_NAME = 15, | |
| 98 | DHCP_OPTION_NTP_SERVER = 42, | |
| 99 | DHCP_OPTION_REQUESTED_IP_ADDRESS = 50, | |
| 100 | DHCP_OPTION_OVERLOAD = 52, | |
| 101 | DHCP_OPTION_MESSAGE_TYPE = 53, | |
| 102 | DHCP_OPTION_PARAMETER_REQUEST_LIST = 55, | |
| 103 | DHCP_OPTION_END = 255, | |
| 104 | }; |