mirror of
https://github.com/rsmarples/dhcpcd.git
synced 2024-11-24 10:35:03 +08:00
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*
|
|
* dhcpcd - DHCP client daemon
|
|
* Copyright (c) 2006-2013 Roy Marples <roy@marples.name>
|
|
* All rights reserved
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef DHCPCOMMON_H
|
|
#define DHCPCOMMON_H
|
|
|
|
#include <arpa/inet.h>
|
|
#include <netinet/in.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "common.h"
|
|
|
|
/* Max MTU - defines dhcp option length */
|
|
#define MTU_MAX 1500
|
|
#define MTU_MIN 576
|
|
|
|
#define REQUEST (1 << 0)
|
|
#define UINT8 (1 << 1)
|
|
#define UINT16 (1 << 2)
|
|
#define SINT16 (1 << 3)
|
|
#define UINT32 (1 << 4)
|
|
#define SINT32 (1 << 5)
|
|
#define ADDRIPV4 (1 << 6)
|
|
#define STRING (1 << 7)
|
|
#define PAIR (1 << 8)
|
|
#define ARRAY (1 << 9)
|
|
#define RFC3361 (1 << 10)
|
|
#define RFC3397 (1 << 11)
|
|
#define RFC3442 (1 << 12)
|
|
#define RFC5969 (1 << 13)
|
|
#define ADDRIPV6 (1 << 14)
|
|
#define BINHEX (1 << 15)
|
|
#define SCODE (1 << 16)
|
|
|
|
struct dhcp_opt {
|
|
uint16_t option;
|
|
int type;
|
|
const char *var;
|
|
};
|
|
|
|
#define add_option_mask(var, val) (var[val >> 3] |= 1 << (val & 7))
|
|
#define del_option_mask(var, val) (var[val >> 3] &= ~(1 << (val & 7)))
|
|
#define has_option_mask(var, val) (var[val >> 3] & (1 << (val & 7)))
|
|
int make_option_mask(const struct dhcp_opt *,uint8_t *, const char *, int);
|
|
ssize_t decode_rfc3397(char *, ssize_t, int, const uint8_t *);
|
|
ssize_t print_string(char *, ssize_t, int, const uint8_t *);
|
|
ssize_t print_option(char *, ssize_t, int, int, const uint8_t *, const char *);
|
|
|
|
#endif
|