1732bccccc
It's a lot more common than BSD 2-clause it is both compatible and nearly identical in effect.
70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
// Copyright 2004-2018 Nicholas J. Kain <njkain at gmail dot com>
|
|
// SPDX-License-Identifier: MIT
|
|
#ifndef OPTIONS_H_
|
|
#define OPTIONS_H_
|
|
|
|
#include "dhcp.h"
|
|
|
|
#define DCODE_PADDING 0x00
|
|
#define DCODE_SUBNET 0x01
|
|
#define DCODE_TIMEZONE 0x02
|
|
#define DCODE_ROUTER 0x03
|
|
#define DCODE_DNS 0x06
|
|
#define DCODE_LPRSVR 0x09
|
|
#define DCODE_HOSTNAME 0x0c
|
|
#define DCODE_DOMAIN 0x0f
|
|
#define DCODE_IPTTL 0x17
|
|
#define DCODE_MTU 0x1a
|
|
#define DCODE_BROADCAST 0x1c
|
|
#define DCODE_NTPSVR 0x2a
|
|
#define DCODE_WINS 0x2c
|
|
#define DCODE_REQIP 0x32
|
|
#define DCODE_LEASET 0x33
|
|
#define DCODE_OVERLOAD 0x34
|
|
#define DCODE_MSGTYPE 0x35
|
|
#define DCODE_SERVER_ID 0x36
|
|
#define DCODE_PARAM_REQ 0x37
|
|
#define DCODE_MAX_SIZE 0x39
|
|
#define DCODE_VENDOR 0x3c
|
|
#define DCODE_CLIENT_ID 0x3d
|
|
#define DCODE_END 0xff
|
|
|
|
#define MAX_DOPT_SIZE 500
|
|
|
|
size_t get_dhcp_opt(const struct dhcpmsg * const packet, uint8_t code,
|
|
uint8_t *dbuf, size_t dlen);
|
|
ssize_t get_end_option_idx(const struct dhcpmsg * const packet);
|
|
|
|
size_t add_option_string(struct dhcpmsg *packet, uint8_t code,
|
|
const char *str, size_t slen);
|
|
size_t add_u32_option(struct dhcpmsg *packet, uint8_t code, uint32_t data);
|
|
|
|
size_t add_option_request_list(struct dhcpmsg *packet);
|
|
#ifdef NDHS_BUILD
|
|
size_t add_option_domain_name(struct dhcpmsg *packet,
|
|
const char * const dom, size_t domlen);
|
|
void add_option_subnet_mask(struct dhcpmsg *packet, uint32_t subnet);
|
|
void add_option_broadcast(struct dhcpmsg *packet, uint32_t bc);
|
|
#endif
|
|
void add_option_msgtype(struct dhcpmsg *packet, uint8_t type);
|
|
void add_option_reqip(struct dhcpmsg *packet, uint32_t ip);
|
|
void add_option_serverid(struct dhcpmsg *packet, uint32_t sid);
|
|
void add_option_clientid(struct dhcpmsg *packet,
|
|
const char * const clientid, size_t clen);
|
|
#ifndef NDHS_BUILD
|
|
void add_option_maxsize(struct dhcpmsg *packet);
|
|
void add_option_vendor(struct dhcpmsg *packet, const char * const vendor,
|
|
size_t vsize);
|
|
void add_option_hostname(struct dhcpmsg *packet, const char * const hostname,
|
|
size_t hsize);
|
|
#endif
|
|
uint32_t get_option_router(const struct dhcpmsg * const packet);
|
|
uint8_t get_option_msgtype(const struct dhcpmsg * const packet);
|
|
uint32_t get_option_serverid(const struct dhcpmsg * const packet, int *found);
|
|
uint32_t get_option_leasetime(const struct dhcpmsg *const packet);
|
|
size_t get_option_clientid(const struct dhcpmsg * const packet,
|
|
char *cbuf, size_t clen);
|
|
|
|
#endif
|
|
|