1 /* vi: set sw=4 ts=4: */
7 # pragma GCC visibility push(hidden)
10 #define TYPE_MASK 0x0F
16 #if ENABLE_FEATURE_UDHCP_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
37 /* DHCP option codes (partial list) */
38 #define DHCP_PADDING 0x00
39 #define DHCP_SUBNET 0x01
40 #define DHCP_TIME_OFFSET 0x02
41 #define DHCP_ROUTER 0x03
42 #define DHCP_TIME_SERVER 0x04
43 #define DHCP_NAME_SERVER 0x05
44 #define DHCP_DNS_SERVER 0x06
45 #define DHCP_LOG_SERVER 0x07
46 #define DHCP_COOKIE_SERVER 0x08
47 #define DHCP_LPR_SERVER 0x09
48 #define DHCP_HOST_NAME 0x0c
49 #define DHCP_BOOT_SIZE 0x0d
50 #define DHCP_DOMAIN_NAME 0x0f
51 #define DHCP_SWAP_SERVER 0x10
52 #define DHCP_ROOT_PATH 0x11
53 #define DHCP_IP_TTL 0x17
55 #define DHCP_BROADCAST 0x1c
56 #define DHCP_NTP_SERVER 0x2a
57 #define DHCP_WINS_SERVER 0x2c
58 #define DHCP_REQUESTED_IP 0x32
59 #define DHCP_LEASE_TIME 0x33
60 #define DHCP_OPTION_OVERLOAD 0x34
61 #define DHCP_MESSAGE_TYPE 0x35
62 #define DHCP_SERVER_ID 0x36
63 #define DHCP_PARAM_REQ 0x37
64 #define DHCP_MESSAGE 0x38
65 #define DHCP_MAX_SIZE 0x39
68 #define DHCP_VENDOR 0x3c
69 #define DHCP_CLIENT_ID 0x3d
70 #define DHCP_FQDN 0x51
72 /* Offsets in option byte sequence */
76 /* Bits in "overload" option */
77 #define OPTION_FIELD 0
85 #define ETH_10MB_LEN 6
87 #define DHCPDISCOVER 1 /* client -> server */
88 #define DHCPOFFER 2 /* client <- server */
89 #define DHCPREQUEST 3 /* client -> server */
90 #define DHCPDECLINE 4 /* client -> server */
91 #define DHCPACK 5 /* client <- server */
92 #define DHCPNAK 6 /* client <- server */
93 #define DHCPRELEASE 7 /* client -> server */
94 #define DHCPINFORM 8 /* client -> server */
101 extern const struct dhcp_option dhcp_options[];
102 extern const char dhcp_option_strings[];
103 extern const uint8_t dhcp_option_lengths[];
105 uint8_t *get_option(struct dhcpMessage *packet, int code) FAST_FUNC;
106 int end_option(uint8_t *optionptr) FAST_FUNC;
107 int add_option_string(uint8_t *optionptr, uint8_t *string) FAST_FUNC;
108 int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data) FAST_FUNC;
109 #if ENABLE_FEATURE_UDHCP_RFC3397
110 char *dname_dec(const uint8_t *cstr, int clen, const char *pre) FAST_FUNC;
111 uint8_t *dname_enc(const uint8_t *cstr, int clen, const char *src, int *retlen) FAST_FUNC;
114 #if __GNUC_PREREQ(4,1)
115 # pragma GCC visibility pop