53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/* dhcpmsg.c - dhcp packet generation and sending functions
|
|
* Time-stamp: <2011-03-30 23:53:52 nk>
|
|
*
|
|
* (c) 2004-2011 Nicholas J. Kain <njkain at gmail dot com>
|
|
* (c) 2001 Russ Dill <Russ.Dill@asu.edu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef DHCPMSG_H_
|
|
#define DHCPMSG_H_
|
|
|
|
#include <stdint.h>
|
|
#include "packet.h"
|
|
|
|
#define DHCP_SERVER_PORT 67
|
|
#define DHCP_CLIENT_PORT 68
|
|
#define DHCP_MAGIC 0x63825363
|
|
|
|
enum {
|
|
DHCPDISCOVER = 1,
|
|
DHCPOFFER = 2,
|
|
DHCPREQUEST = 3,
|
|
DHCPDECLINE = 4,
|
|
DHCPACK = 5,
|
|
DHCPNAK = 6,
|
|
DHCPRELEASE = 7,
|
|
DHCPINFORM = 8
|
|
};
|
|
|
|
uint32_t random_xid(void);
|
|
int send_discover(uint32_t xid, uint32_t requested);
|
|
int send_selecting(uint32_t xid, uint32_t server, uint32_t requested);
|
|
int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr);
|
|
int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr);
|
|
int send_decline(uint32_t xid, uint32_t server, uint32_t requested);
|
|
int send_release(uint32_t server, uint32_t ciaddr);
|
|
int get_raw_packet(struct dhcpMessage *payload, int fd);
|
|
|
|
#endif
|