85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/* options.h */
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#ifndef OPTIONS_H_
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#define OPTIONS_H_
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#include "packet.h"
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#define TYPE_MASK 0x0F
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/* DHCP option codes (partial list) */
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#define DHCP_PADDING 0x00
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#define DHCP_SUBNET 0x01
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#define DHCP_TIME_OFFSET 0x02
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#define DHCP_ROUTER 0x03
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#define DHCP_TIME_SERVER 0x04
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#define DHCP_NAME_SERVER 0x05
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#define DHCP_DNS_SERVER 0x06
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#define DHCP_LOG_SERVER 0x07
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#define DHCP_COOKIE_SERVER 0x08
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#define DHCP_LPR_SERVER 0x09
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#define DHCP_HOST_NAME 0x0c
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#define DHCP_BOOT_SIZE 0x0d
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#define DHCP_DOMAIN_NAME 0x0f
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#define DHCP_SWAP_SERVER 0x10
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#define DHCP_ROOT_PATH 0x11
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#define DHCP_IP_TTL 0x17
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#define DHCP_MTU 0x1a
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#define DHCP_BROADCAST 0x1c
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#define DHCP_NIS_DOMAIN 0x28
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#define DHCP_NIS_SERVER 0x29
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#define DHCP_NTP_SERVER 0x2a
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#define DHCP_WINS_SERVER 0x2c
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#define DHCP_REQUESTED_IP 0x32
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#define DHCP_LEASE_TIME 0x33
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#define DHCP_OPTION_OVERLOAD 0x34
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#define DHCP_MESSAGE_TYPE 0x35
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#define DHCP_SERVER_ID 0x36
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#define DHCP_PARAM_REQ 0x37
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#define DHCP_MESSAGE 0x38
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#define DHCP_MAX_SIZE 0x39
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#define DHCP_T1 0x3a
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#define DHCP_T2 0x3b
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#define DHCP_VENDOR 0x3c
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#define DHCP_CLIENT_ID 0x3d
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#define DHCP_TFTP_SERVER_NAME 0x42
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#define DHCP_BOOT_FILE 0x43
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#define DHCP_USER_CLASS 0x4d
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#define DHCP_FQDN 0x51
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#define DHCP_DOMAIN_SEARCH 0x77
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#define DHCP_SIP_SERVERS 0x78
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#define DHCP_STATIC_ROUTES 0x79
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#define DHCP_WPAD 0xfc
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#define DHCP_END 0xff
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enum {
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OPTION_IP=1,
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OPTION_IP_PAIR,
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OPTION_STRING,
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OPTION_BOOLEAN,
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OPTION_U8,
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OPTION_U16,
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OPTION_S16,
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OPTION_U32,
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OPTION_S32
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};
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#define OPTION_REQ 0x10 /* have the client request this option */
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#define OPTION_LIST 0x20 /* There can be a list of 1 or more of these */
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struct dhcp_option {
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char name[10];
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char flags;
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unsigned char code;
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};
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extern struct dhcp_option options[];
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extern int option_lengths[];
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uint8_t *get_option(struct dhcpMessage *packet, int code);
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int end_option(uint8_t *optionptr);
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int add_option_string(unsigned char *optionptr, unsigned char *string);
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int add_simple_option(unsigned char *optionptr, unsigned char code, uint32_t data);
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struct option_set *find_option(struct option_set *opt_list, char code);
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#endif
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