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    Annotation of /trunk/mkinitrd-magellan/busybox/networking/udhcp/Config.in

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    Revision 816 - (hide annotations) (download)
    Fri Apr 24 18:33:46 2009 UTC (15 years, 1 month ago) by niro
    File size: 3984 byte(s) 
    -updated to busybox-1.13.4
    1 niro 532 #
    2     # For a description of the syntax of this configuration file,
    3     # see scripts/kbuild/config-language.txt.
    4     #
    5    
    6     config APP_UDHCPD
    7 niro 816 bool "udhcp server (udhcpd)"
    8 niro 532 default n
    9     help
    10 niro 816 udhcpd is a DHCP server geared primarily toward embedded systems,
    11 niro 532 while striving to be fully functional and RFC compliant.
    12    
    13     config APP_DHCPRELAY
    14     bool "dhcprelay"
    15     default n
    16     depends on APP_UDHCPD
    17     help
    18     dhcprelay listens for dhcp requests on one or more interfaces
    19     and forwards these requests to a different interface or dhcp
    20     server.
    21    
    22     config APP_DUMPLEASES
    23     bool "Lease display utility (dumpleases)"
    24     default n
    25     depends on APP_UDHCPD
    26     help
    27     dumpleases displays the leases written out by the udhcpd server.
    28     Lease times are stored in the file by time remaining in lease, or
    29     by the absolute time that it expires in seconds from epoch.
    30    
    31 niro 816 config FEATURE_UDHCPD_WRITE_LEASES_EARLY
    32     bool "Rewrite the lease file at every new acknowledge"
    33     default n
    34     depends on APP_UDHCPD
    35     help
    36     If selected, udhcpd will write a new file with leases every
    37     time a new lease has been accepted, thus eliminating the need
    38     to send SIGUSR1 for the initial writing or updating. Any timed
    39     rewriting remains undisturbed
    40 niro 532
    41 niro 816 config DHCPD_LEASES_FILE
    42     string "Absolute path to lease file"
    43     default "/var/lib/misc/udhcpd.leases"
    44     depends on APP_UDHCPD
    45     help
    46     udhcpd stores addresses in a lease file. This is the absolute path
    47     of the file. Normally it is safe to leave it untouched.
    48    
    49 niro 532 config APP_UDHCPC
    50 niro 816 bool "udhcp client (udhcpc)"
    51 niro 532 default n
    52     help
    53 niro 816 udhcpc is a DHCP client geared primarily toward embedded systems,
    54 niro 532 while striving to be fully functional and RFC compliant.
    55    
    56     The udhcp client negotiates a lease with the DHCP server and
    57 niro 816 runs a script when a lease is obtained or lost.
    58 niro 532
    59 niro 816 config FEATURE_UDHCPC_ARPING
    60     bool "Verify that the offered address is free, using ARP ping"
    61     default y
    62     depends on APP_UDHCPC
    63     help
    64     If selected, udhcpc will send ARP probes and make sure
    65     the offered address is really not in use by anyone. The client
    66     will DHCPDECLINE the offer if the address is in use,
    67     and restart the discover process.
    68 niro 532
    69 niro 816 config FEATURE_UDHCP_PORT
    70     bool "Enable '-P port' option for udhcpd and udhcpc"
    71 niro 532 default n
    72     depends on APP_UDHCPD || APP_UDHCPC
    73     help
    74 niro 816 At the cost of ~300 bytes, enables -P port option.
    75     This feature is typically not needed.
    76 niro 532
    77 niro 816 config UDHCP_DEBUG
    78 niro 532 bool "Compile udhcp with noisy debugging messages"
    79     default n
    80     depends on APP_UDHCPD || APP_UDHCPC
    81     help
    82 niro 816 If selected, udhcpd will output extra debugging output.
    83 niro 532
    84 niro 816 config FEATURE_UDHCP_RFC3397
    85     bool "Support for RFC3397 domain search (experimental)"
    86     default n
    87     depends on APP_UDHCPD || APP_UDHCPC
    88     help
    89     If selected, both client and server will support passing of domain
    90     search lists via option 119, specified in RFC3397.
    91    
    92     config UDHCPC_DEFAULT_SCRIPT
    93     string "Absolute path to config script"
    94     default "/usr/share/udhcpc/default.script"
    95     depends on APP_UDHCPC
    96     help
    97     This script is called after udhcpc receives an answer. See
    98     examples/udhcp for a working example. Normally it is safe
    99     to leave this untouched.
    100    
    101     config UDHCPC_SLACK_FOR_BUGGY_SERVERS
    102     int "DHCP options slack buffer size"
    103     default 80
    104     range 0 924
    105     depends on APP_UDHCPD || APP_UDHCPC
    106     help
    107     Some buggy DHCP servers send DHCP offer packets with option
    108     field larger than we expect (which might also be considered a
    109     buffer overflow attempt). These packets are normally discarded.
    110     If circumstances beyond your control force you to support such
    111     servers, this may help. The upper limit (924) makes dhcpc accept
    112     even 1500 byte packets (maximum-sized ethernet packets).
    113    
    114     This option does not make dhcp[cd] emit non-standard
    115     sized packets.
    116    
    117     Known buggy DHCP servers:
    118     3Com OfficeConnect Remote 812 ADSL Router:
    119     seems to confuse maximum allowed UDP packet size with
    120     maximum size of entire IP packet, and sends packets which are
    121     28 bytes too large.
    122     Seednet (ISP) VDSL: sends packets 2 bytes too large.