1 /* vi: set sw=4 ts=4: */
7 # pragma GCC visibility push(hidden)
10 #define TYPE_MASK 0x0F
16 #if ENABLE_FEATURE_RFC3397
17 OPTION_STR1035, /* RFC1035 compressed domain name list */
27 #define OPTION_REQ 0x10 /* have the client request this option */
28 #define OPTION_LIST 0x20 /* There can be a list of 1 or more of these */
30 /*****************************************************************/
31 /* Do not modify below here unless you know what you are doing!! */
32 /*****************************************************************/
34 /* DHCP protocol -- see RFC 2131 */
35 #define DHCP_MAGIC 0x63825363
38 /* DHCP option codes (partial list) */
39 #define DHCP_PADDING 0x00
40 #define DHCP_SUBNET 0x01
41 #define DHCP_TIME_OFFSET 0x02
42 #define DHCP_ROUTER 0x03
43 #define DHCP_TIME_SERVER 0x04
44 #define DHCP_NAME_SERVER 0x05
45 #define DHCP_DNS_SERVER 0x06
46 #define DHCP_LOG_SERVER 0x07
47 #define DHCP_COOKIE_SERVER 0x08
48 #define DHCP_LPR_SERVER 0x09
49 #define DHCP_HOST_NAME 0x0c
50 #define DHCP_BOOT_SIZE 0x0d
51 #define DHCP_DOMAIN_NAME 0x0f
52 #define DHCP_SWAP_SERVER 0x10
53 #define DHCP_ROOT_PATH 0x11
54 #define DHCP_IP_TTL 0x17
56 #define DHCP_BROADCAST 0x1c
57 #define DHCP_NTP_SERVER 0x2a
58 #define DHCP_WINS_SERVER 0x2c
59 #define DHCP_REQUESTED_IP 0x32
60 #define DHCP_LEASE_TIME 0x33
61 #define DHCP_OPTION_OVER 0x34
62 #define DHCP_MESSAGE_TYPE 0x35
63 #define DHCP_SERVER_ID 0x36
64 #define DHCP_PARAM_REQ 0x37
65 #define DHCP_MESSAGE 0x38
66 #define DHCP_MAX_SIZE 0x39
69 #define DHCP_VENDOR 0x3c
70 #define DHCP_CLIENT_ID 0x3d
71 #define DHCP_FQDN 0x51
79 #define ETH_10MB_LEN 6
81 #define DHCPDISCOVER 1
90 #define BROADCAST_FLAG 0x8000
92 #define OPTION_FIELD 0
96 /* miscellaneous defines */
106 extern const struct dhcp_option dhcp_options[];
107 extern const char dhcp_option_strings[];
108 extern const uint8_t dhcp_option_lengths[];
110 uint8_t *get_option(struct dhcpMessage *packet, int code);
111 int end_option(uint8_t *optionptr);
112 int add_option_string(uint8_t *optionptr, uint8_t *string);
113 int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data);
114 #if ENABLE_FEATURE_RFC3397
115 char *dname_dec(const uint8_t *cstr, int clen, const char *pre);
116 uint8_t *dname_enc(const uint8_t *cstr, int clen, const char *src, int *retlen);
119 #if __GNUC_PREREQ(4,1)
120 # pragma GCC visibility pop