1 /* vi: set sw=4 ts=4: */
12 #if ENABLE_FEATURE_RFC3397
13 OPTION_STR1035, /* RFC1035 compressed domain name list */
23 #define OPTION_REQ 0x10 /* have the client request this option */
24 #define OPTION_LIST 0x20 /* There can be a list of 1 or more of these */
26 /*****************************************************************/
27 /* Do not modify below here unless you know what you are doing!! */
28 /*****************************************************************/
30 /* DHCP protocol -- see RFC 2131 */
31 #define DHCP_MAGIC 0x63825363
34 /* DHCP option codes (partial list) */
35 #define DHCP_PADDING 0x00
36 #define DHCP_SUBNET 0x01
37 #define DHCP_TIME_OFFSET 0x02
38 #define DHCP_ROUTER 0x03
39 #define DHCP_TIME_SERVER 0x04
40 #define DHCP_NAME_SERVER 0x05
41 #define DHCP_DNS_SERVER 0x06
42 #define DHCP_LOG_SERVER 0x07
43 #define DHCP_COOKIE_SERVER 0x08
44 #define DHCP_LPR_SERVER 0x09
45 #define DHCP_HOST_NAME 0x0c
46 #define DHCP_BOOT_SIZE 0x0d
47 #define DHCP_DOMAIN_NAME 0x0f
48 #define DHCP_SWAP_SERVER 0x10
49 #define DHCP_ROOT_PATH 0x11
50 #define DHCP_IP_TTL 0x17
52 #define DHCP_BROADCAST 0x1c
53 #define DHCP_NTP_SERVER 0x2a
54 #define DHCP_WINS_SERVER 0x2c
55 #define DHCP_REQUESTED_IP 0x32
56 #define DHCP_LEASE_TIME 0x33
57 #define DHCP_OPTION_OVER 0x34
58 #define DHCP_MESSAGE_TYPE 0x35
59 #define DHCP_SERVER_ID 0x36
60 #define DHCP_PARAM_REQ 0x37
61 #define DHCP_MESSAGE 0x38
62 #define DHCP_MAX_SIZE 0x39
65 #define DHCP_VENDOR 0x3c
66 #define DHCP_CLIENT_ID 0x3d
67 #define DHCP_FQDN 0x51
75 #define ETH_10MB_LEN 6
77 #define DHCPDISCOVER 1
86 #define BROADCAST_FLAG 0x8000
88 #define OPTION_FIELD 0
92 /* miscellaneous defines */
102 extern const struct dhcp_option dhcp_options[];
103 extern const char dhcp_option_strings[];
104 extern const uint8_t dhcp_option_lengths[];
106 uint8_t *get_option(struct dhcpMessage *packet, int code);
107 int end_option(uint8_t *optionptr);
108 int add_option_string(uint8_t *optionptr, uint8_t *string);
109 int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data);
110 #if ENABLE_FEATURE_RFC3397
111 char *dname_dec(const uint8_t *cstr, int clen, const char *pre);
112 uint8_t *dname_enc(const uint8_t *cstr, int clen, const char *src, int *retlen);