"Robert P. J. Day" | 63fc1a9 | 2006-07-02 19:47:05 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 2 | /* options.h */ |
Denis Vlasenko | f81e8db | 2009-04-09 12:35:13 +0000 | [diff] [blame] | 3 | #ifndef UDHCP_OPTIONS_H |
| 4 | #define UDHCP_OPTIONS_H 1 |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 5 | |
Denis Vlasenko | f81e8db | 2009-04-09 12:35:13 +0000 | [diff] [blame] | 6 | PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN |
Denis Vlasenko | 98636eb | 2008-05-09 17:59:34 +0000 | [diff] [blame] | 7 | |
Denis Vlasenko | bd79c3d | 2009-04-01 12:36:09 +0000 | [diff] [blame] | 8 | #define TYPE_MASK 0x0F |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 9 | |
| 10 | enum { |
Denis Vlasenko | 6884f66 | 2007-11-23 00:08:54 +0000 | [diff] [blame] | 11 | OPTION_IP = 1, |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 12 | OPTION_IP_PAIR, |
| 13 | OPTION_STRING, |
Denis Vlasenko | 35a064b | 2008-11-06 00:49:59 +0000 | [diff] [blame] | 14 | #if ENABLE_FEATURE_UDHCP_RFC3397 |
Denis Vlasenko | 5066473 | 2007-02-27 21:15:08 +0000 | [diff] [blame] | 15 | OPTION_STR1035, /* RFC1035 compressed domain name list */ |
| 16 | #endif |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 17 | OPTION_BOOLEAN, |
| 18 | OPTION_U8, |
| 19 | OPTION_U16, |
| 20 | OPTION_S16, |
| 21 | OPTION_U32, |
| 22 | OPTION_S32 |
| 23 | }; |
| 24 | |
Denis Vlasenko | bd79c3d | 2009-04-01 12:36:09 +0000 | [diff] [blame] | 25 | #define OPTION_REQ 0x10 /* have the client request this option */ |
| 26 | #define OPTION_LIST 0x20 /* There can be a list of 1 or more of these */ |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 27 | |
Denis Vlasenko | fbd2918 | 2007-04-07 01:05:47 +0000 | [diff] [blame] | 28 | /*****************************************************************/ |
| 29 | /* Do not modify below here unless you know what you are doing!! */ |
| 30 | /*****************************************************************/ |
| 31 | |
| 32 | /* DHCP protocol -- see RFC 2131 */ |
Denis Vlasenko | fbd2918 | 2007-04-07 01:05:47 +0000 | [diff] [blame] | 33 | #define DHCP_MAGIC 0x63825363 |
| 34 | |
| 35 | /* DHCP option codes (partial list) */ |
Denis Vlasenko | bd79c3d | 2009-04-01 12:36:09 +0000 | [diff] [blame] | 36 | #define DHCP_PADDING 0x00 |
| 37 | #define DHCP_SUBNET 0x01 |
| 38 | #define DHCP_TIME_OFFSET 0x02 |
| 39 | #define DHCP_ROUTER 0x03 |
| 40 | #define DHCP_TIME_SERVER 0x04 |
| 41 | #define DHCP_NAME_SERVER 0x05 |
| 42 | #define DHCP_DNS_SERVER 0x06 |
| 43 | #define DHCP_LOG_SERVER 0x07 |
| 44 | #define DHCP_COOKIE_SERVER 0x08 |
| 45 | #define DHCP_LPR_SERVER 0x09 |
| 46 | #define DHCP_HOST_NAME 0x0c |
| 47 | #define DHCP_BOOT_SIZE 0x0d |
| 48 | #define DHCP_DOMAIN_NAME 0x0f |
| 49 | #define DHCP_SWAP_SERVER 0x10 |
| 50 | #define DHCP_ROOT_PATH 0x11 |
| 51 | #define DHCP_IP_TTL 0x17 |
| 52 | #define DHCP_MTU 0x1a |
| 53 | #define DHCP_BROADCAST 0x1c |
| 54 | #define DHCP_NTP_SERVER 0x2a |
| 55 | #define DHCP_WINS_SERVER 0x2c |
| 56 | #define DHCP_REQUESTED_IP 0x32 |
| 57 | #define DHCP_LEASE_TIME 0x33 |
| 58 | #define DHCP_OPTION_OVERLOAD 0x34 |
| 59 | #define DHCP_MESSAGE_TYPE 0x35 |
| 60 | #define DHCP_SERVER_ID 0x36 |
| 61 | #define DHCP_PARAM_REQ 0x37 |
| 62 | #define DHCP_MESSAGE 0x38 |
| 63 | #define DHCP_MAX_SIZE 0x39 |
| 64 | #define DHCP_T1 0x3a |
| 65 | #define DHCP_T2 0x3b |
| 66 | #define DHCP_VENDOR 0x3c |
| 67 | #define DHCP_CLIENT_ID 0x3d |
| 68 | #define DHCP_FQDN 0x51 |
| 69 | #define DHCP_END 0xFF |
| 70 | /* Offsets in option byte sequence */ |
| 71 | #define OPT_CODE 0 |
| 72 | #define OPT_LEN 1 |
| 73 | #define OPT_DATA 2 |
| 74 | /* Bits in "overload" option */ |
| 75 | #define OPTION_FIELD 0 |
| 76 | #define FILE_FIELD 1 |
| 77 | #define SNAME_FIELD 2 |
Denis Vlasenko | fbd2918 | 2007-04-07 01:05:47 +0000 | [diff] [blame] | 78 | |
Denis Vlasenko | bd79c3d | 2009-04-01 12:36:09 +0000 | [diff] [blame] | 79 | #define BOOTREQUEST 1 |
| 80 | #define BOOTREPLY 2 |
Denis Vlasenko | fbd2918 | 2007-04-07 01:05:47 +0000 | [diff] [blame] | 81 | |
Denis Vlasenko | bd79c3d | 2009-04-01 12:36:09 +0000 | [diff] [blame] | 82 | #define ETH_10MB 1 |
| 83 | #define ETH_10MB_LEN 6 |
Denis Vlasenko | fbd2918 | 2007-04-07 01:05:47 +0000 | [diff] [blame] | 84 | |
Denis Vlasenko | bd79c3d | 2009-04-01 12:36:09 +0000 | [diff] [blame] | 85 | #define DHCPDISCOVER 1 /* client -> server */ |
| 86 | #define DHCPOFFER 2 /* client <- server */ |
| 87 | #define DHCPREQUEST 3 /* client -> server */ |
| 88 | #define DHCPDECLINE 4 /* client -> server */ |
| 89 | #define DHCPACK 5 /* client <- server */ |
| 90 | #define DHCPNAK 6 /* client <- server */ |
| 91 | #define DHCPRELEASE 7 /* client -> server */ |
| 92 | #define DHCPINFORM 8 /* client -> server */ |
Denis Vlasenko | fbd2918 | 2007-04-07 01:05:47 +0000 | [diff] [blame] | 93 | |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 94 | struct dhcp_option { |
Denis Vlasenko | b539c84 | 2007-11-29 08:17:45 +0000 | [diff] [blame] | 95 | uint8_t flags; |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 96 | uint8_t code; |
| 97 | }; |
| 98 | |
Denis Vlasenko | c90c3f3 | 2006-11-23 12:57:49 +0000 | [diff] [blame] | 99 | extern const struct dhcp_option dhcp_options[]; |
Denis Vlasenko | b539c84 | 2007-11-29 08:17:45 +0000 | [diff] [blame] | 100 | extern const char dhcp_option_strings[]; |
| 101 | extern const uint8_t dhcp_option_lengths[]; |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 102 | |
Denys Vlasenko | 31af3d5 | 2009-06-17 11:57:09 +0200 | [diff] [blame] | 103 | uint8_t *get_option(struct dhcp_packet *packet, int code) FAST_FUNC; |
Denis Vlasenko | f1980f6 | 2008-09-26 09:34:59 +0000 | [diff] [blame] | 104 | int end_option(uint8_t *optionptr) FAST_FUNC; |
| 105 | int add_option_string(uint8_t *optionptr, uint8_t *string) FAST_FUNC; |
| 106 | int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data) FAST_FUNC; |
Denis Vlasenko | 35a064b | 2008-11-06 00:49:59 +0000 | [diff] [blame] | 107 | #if ENABLE_FEATURE_UDHCP_RFC3397 |
Denis Vlasenko | f1980f6 | 2008-09-26 09:34:59 +0000 | [diff] [blame] | 108 | char *dname_dec(const uint8_t *cstr, int clen, const char *pre) FAST_FUNC; |
| 109 | uint8_t *dname_enc(const uint8_t *cstr, int clen, const char *src, int *retlen) FAST_FUNC; |
Denis Vlasenko | 5066473 | 2007-02-27 21:15:08 +0000 | [diff] [blame] | 110 | #endif |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 111 | |
Denis Vlasenko | f81e8db | 2009-04-09 12:35:13 +0000 | [diff] [blame] | 112 | POP_SAVED_FUNCTION_VISIBILITY |
Denis Vlasenko | 98636eb | 2008-05-09 17:59:34 +0000 | [diff] [blame] | 113 | |
Mike Frysinger | 7031f62 | 2006-05-08 03:20:50 +0000 | [diff] [blame] | 114 | #endif |