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    Contents of /trunk/mkinitrd-magellan/busybox/networking/udhcp/options.h

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    Revision 984 - (show annotations) (download)
    Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
    File MIME type: text/plain
    File size: 3760 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 /* vi: set sw=4 ts=4: */
    2 /* options.h */
    3 #ifndef UDHCP_OPTIONS_H
    4 #define UDHCP_OPTIONS_H 1
    5
    6 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
    7
    8 #define TYPE_MASK 0x0F
    9
    10 enum {
    11 OPTION_IP = 1,
    12 OPTION_IP_PAIR,
    13 OPTION_STRING,
    14 #if ENABLE_FEATURE_UDHCP_RFC3397
    15 OPTION_STR1035, /* RFC1035 compressed domain name list */
    16 #endif
    17 OPTION_BOOLEAN,
    18 OPTION_U8,
    19 OPTION_U16,
    20 OPTION_S16,
    21 OPTION_U32,
    22 OPTION_S32,
    23 OPTION_STATIC_ROUTES,
    24 };
    25
    26 /* Client requests this option by default */
    27 #define OPTION_REQ 0x10
    28 /* There can be a list of 1 or more of these */
    29 #define OPTION_LIST 0x20
    30
    31 /*****************************************************************/
    32 /* Do not modify below here unless you know what you are doing!! */
    33 /*****************************************************************/
    34
    35 /* DHCP protocol -- see RFC 2131 */
    36 #define DHCP_MAGIC 0x63825363
    37
    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
    55 #define DHCP_MTU 0x1a
    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_OVERLOAD 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
    67 #define DHCP_T1 0x3a
    68 #define DHCP_T2 0x3b
    69 #define DHCP_VENDOR 0x3c
    70 #define DHCP_CLIENT_ID 0x3d
    71 #define DHCP_FQDN 0x51
    72 #define DHCP_STATIC_ROUTES 0x79
    73 #define DHCP_END 0xFF
    74 /* Offsets in option byte sequence */
    75 #define OPT_CODE 0
    76 #define OPT_LEN 1
    77 #define OPT_DATA 2
    78 /* Bits in "overload" option */
    79 #define OPTION_FIELD 0
    80 #define FILE_FIELD 1
    81 #define SNAME_FIELD 2
    82
    83 #define BOOTREQUEST 1
    84 #define BOOTREPLY 2
    85
    86 #define ETH_10MB 1
    87 #define ETH_10MB_LEN 6
    88
    89 #define DHCPDISCOVER 1 /* client -> server */
    90 #define DHCPOFFER 2 /* client <- server */
    91 #define DHCPREQUEST 3 /* client -> server */
    92 #define DHCPDECLINE 4 /* client -> server */
    93 #define DHCPACK 5 /* client <- server */
    94 #define DHCPNAK 6 /* client <- server */
    95 #define DHCPRELEASE 7 /* client -> server */
    96 #define DHCPINFORM 8 /* client -> server */
    97
    98 struct dhcp_option {
    99 uint8_t flags;
    100 uint8_t code;
    101 };
    102
    103 extern const struct dhcp_option dhcp_options[];
    104 extern const char dhcp_option_strings[];
    105 extern const uint8_t dhcp_option_lengths[];
    106
    107 uint8_t *get_option(struct dhcp_packet *packet, int code) FAST_FUNC;
    108 int end_option(uint8_t *optionptr) FAST_FUNC;
    109 int add_option_string(uint8_t *optionptr, uint8_t *string) FAST_FUNC;
    110 int add_simple_option(uint8_t *optionptr, uint8_t code, uint32_t data) FAST_FUNC;
    111 #if ENABLE_FEATURE_UDHCP_RFC3397
    112 char *dname_dec(const uint8_t *cstr, int clen, const char *pre) FAST_FUNC;
    113 uint8_t *dname_enc(const uint8_t *cstr, int clen, const char *src, int *retlen) FAST_FUNC;
    114 #endif
    115
    116 POP_SAVED_FUNCTION_VISIBILITY
    117
    118 #endif