1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright (C) 2013 Intel Corporation. All rights reserved.
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.
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.
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/>.
24 #include <netinet/udp.h>
25 #include <netinet/ip.h>
29 #include "sparse-endian.h"
48 typedef struct DHCPMessage DHCPMessage;
56 typedef struct DHCPPacket DHCPPacket;
58 #define DHCP_IP_SIZE (int32_t)(sizeof(struct iphdr))
59 #define DHCP_IP_UDP_SIZE (int32_t)(sizeof(struct udphdr) + DHCP_IP_SIZE)
60 #define DHCP_MESSAGE_SIZE (int32_t)(sizeof(DHCPMessage))
63 DHCP_PORT_SERVER = 67,
64 DHCP_PORT_CLIENT = 68,
69 DHCP_STATE_SELECTING = 1,
70 DHCP_STATE_INIT_REBOOT = 2,
71 DHCP_STATE_REBOOTING = 3,
72 DHCP_STATE_REQUESTING = 4,
74 DHCP_STATE_RENEWING = 6,
75 DHCP_STATE_REBINDING = 7,
78 typedef enum DHCPState DHCPState;
96 DHCP_OVERLOAD_FILE = 1,
97 DHCP_OVERLOAD_SNAME = 2,
102 DHCP_OPTION_SUBNET_MASK = 1,
103 DHCP_OPTION_ROUTER = 3,
104 DHCP_OPTION_DOMAIN_NAME_SERVER = 6,
105 DHCP_OPTION_HOST_NAME = 12,
106 DHCP_OPTION_DOMAIN_NAME = 15,
107 DHCP_OPTION_INTERFACE_MTU = 26,
108 DHCP_OPTION_NTP_SERVER = 42,
109 DHCP_OPTION_REQUESTED_IP_ADDRESS = 50,
110 DHCP_OPTION_IP_ADDRESS_LEASE_TIME = 51,
111 DHCP_OPTION_OVERLOAD = 52,
112 DHCP_OPTION_MESSAGE_TYPE = 53,
113 DHCP_OPTION_SERVER_IDENTIFIER = 54,
114 DHCP_OPTION_PARAMETER_REQUEST_LIST = 55,
115 DHCP_OPTION_MAXIMUM_MESSAGE_SIZE = 57,
116 DHCP_OPTION_RENEWAL_T1_TIME = 58,
117 DHCP_OPTION_REBINDING_T2_TIME = 59,
118 DHCP_OPTION_CLIENT_IDENTIFIER = 61,
119 DHCP_OPTION_END = 255,