package/utils/busybox/config/networking/udhcp/Config.in

   1 # DO NOT EDIT. This file is generated from Config.src
   2 #
   3 # For a description of the syntax of this configuration file,
   4 # see scripts/kbuild/config-language.txt.
   5 #
   6
   7 config BUSYBOX_CONFIG_UDHCPC6
   8         bool "udhcp client for DHCPv6 (udhcpc6)"
   9         default BUSYBOX_DEFAULT_UDHCPC6  # not yet ready
  10         depends on BUSYBOX_CONFIG_FEATURE_IPV6
  11         help
  12           udhcpc6 is a DHCPv6 client
  13
  14 config BUSYBOX_CONFIG_UDHCPD
  15         bool "udhcp server (udhcpd)"
  16         default BUSYBOX_DEFAULT_UDHCPD
  17         select BUSYBOX_CONFIG_PLATFORM_LINUX
  18         help
  19           udhcpd is a DHCP server geared primarily toward embedded systems,
  20           while striving to be fully functional and RFC compliant.
  21
  22 config BUSYBOX_CONFIG_DHCPRELAY
  23         bool "dhcprelay"
  24         default BUSYBOX_DEFAULT_DHCPRELAY
  25         help
  26           dhcprelay listens for dhcp requests on one or more interfaces
  27           and forwards these requests to a different interface or dhcp
  28           server.
  29
  30 config BUSYBOX_CONFIG_DUMPLEASES
  31         bool "Lease display utility (dumpleases)"
  32         default BUSYBOX_DEFAULT_DUMPLEASES
  33         help
  34           dumpleases displays the leases written out by the udhcpd server.
  35           Lease times are stored in the file by time remaining in lease, or
  36           by the absolute time that it expires in seconds from epoch.
  37
  38 config BUSYBOX_CONFIG_FEATURE_UDHCPD_WRITE_LEASES_EARLY
  39         bool "Rewrite the lease file at every new acknowledge"
  40         default BUSYBOX_DEFAULT_FEATURE_UDHCPD_WRITE_LEASES_EARLY
  41         depends on BUSYBOX_CONFIG_UDHCPD
  42         help
  43           If selected, udhcpd will write a new file with leases every
  44           time a new lease has been accepted, thus eliminating the need
  45           to send SIGUSR1 for the initial writing or updating. Any timed
  46           rewriting remains undisturbed.
  47
  48 config BUSYBOX_CONFIG_FEATURE_UDHCPD_BASE_IP_ON_MAC
  49         bool "Select IP address based on client MAC"
  50         default BUSYBOX_DEFAULT_FEATURE_UDHCPD_BASE_IP_ON_MAC
  51         depends on BUSYBOX_CONFIG_UDHCPD
  52         help
  53           If selected, udhcpd will base its selection of IP address to offer
  54           on the client's hardware address. Otherwise udhcpd uses the next
  55           consecutive free address.
  56
  57           This reduces the frequency of IP address changes for clients
  58           which let their lease expire, and makes consecutive DHCPOFFERS
  59           for the same client to (almost always) contain the same
  60           IP address.
  61
  62 config BUSYBOX_CONFIG_DHCPD_LEASES_FILE
  63         string "Absolute path to lease file"
  64         default BUSYBOX_DEFAULT_DHCPD_LEASES_FILE
  65         depends on BUSYBOX_CONFIG_UDHCPD
  66         help
  67           udhcpd stores addresses in a lease file. This is the absolute path
  68           of the file. Normally it is safe to leave it untouched.
  69
  70 config BUSYBOX_CONFIG_UDHCPC
  71         bool "udhcp client (udhcpc)"
  72         default BUSYBOX_DEFAULT_UDHCPC
  73         select BUSYBOX_CONFIG_PLATFORM_LINUX
  74         help
  75           udhcpc is a DHCP client geared primarily toward embedded systems,
  76           while striving to be fully functional and RFC compliant.
  77
  78           The udhcp client negotiates a lease with the DHCP server and
  79           runs a script when a lease is obtained or lost.
  80
  81 config BUSYBOX_CONFIG_FEATURE_UDHCPC_ARPING
  82         bool "Verify that the offered address is free, using ARP ping"
  83         default BUSYBOX_DEFAULT_FEATURE_UDHCPC_ARPING
  84         depends on BUSYBOX_CONFIG_UDHCPC
  85         help
  86           If selected, udhcpc will send ARP probes and make sure
  87           the offered address is really not in use by anyone. The client
  88           will DHCPDECLINE the offer if the address is in use,
  89           and restart the discover process.
  90
  91 config BUSYBOX_CONFIG_FEATURE_UDHCPC_SANITIZEOPT
  92         bool "Do not pass malformed host and domain names"
  93         default BUSYBOX_DEFAULT_FEATURE_UDHCPC_SANITIZEOPT
  94         depends on BUSYBOX_CONFIG_UDHCPC
  95         help
  96           If selected, udhcpc will check some options (such as option 12 -
  97           hostname) and if they don't look like valid hostnames
  98           (for example, if they start with dash or contain spaces),
  99           they will be replaced with string "bad" when exporting
 100           to the environment.
 101
 102 config BUSYBOX_CONFIG_FEATURE_UDHCP_PORT
 103         bool "Enable '-P port' option for udhcpd and udhcpc"
 104         default BUSYBOX_DEFAULT_FEATURE_UDHCP_PORT
 105         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 106         help
 107           At the cost of ~300 bytes, enables -P port option.
 108           This feature is typically not needed.
 109
 110 config BUSYBOX_CONFIG_UDHCP_DEBUG
 111         int "Maximum verbosity level for udhcp applets (0..9)"
 112         default BUSYBOX_DEFAULT_UDHCP_DEBUG
 113         range 0 9
 114         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC || BUSYBOX_CONFIG_DHCPRELAY
 115         help
 116           Verbosity can be increased with multiple -v options.
 117           This option controls how high it can be cranked up.
 118
 119           Bigger values result in bigger code. Levels above 1
 120           are very verbose and useful for debugging only.
 121
 122 config BUSYBOX_CONFIG_FEATURE_UDHCP_RFC3397
 123         bool "Support for RFC3397 domain search (experimental)"
 124         default BUSYBOX_DEFAULT_FEATURE_UDHCP_RFC3397
 125         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 126         help
 127           If selected, both client and server will support passing of domain
 128           search lists via option 119, specified in RFC 3397,
 129           and SIP servers option 120, specified in RFC 3361.
 130
 131 config BUSYBOX_CONFIG_FEATURE_UDHCP_8021Q
 132         bool "Support for 802.1Q VLAN parameters"
 133         default BUSYBOX_DEFAULT_FEATURE_UDHCP_8021Q
 134         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 135         help
 136           If selected, both client and server will support passing of VLAN
 137           ID and priority via options 132 and 133 as per 802.1Q.
 138
 139 config BUSYBOX_CONFIG_UDHCPC_DEFAULT_SCRIPT
 140         string "Absolute path to config script"
 141         default BUSYBOX_DEFAULT_UDHCPC_DEFAULT_SCRIPT
 142         depends on BUSYBOX_CONFIG_UDHCPC
 143         help
 144           This script is called after udhcpc receives an answer. See
 145           examples/udhcp for a working example. Normally it is safe
 146           to leave this untouched.
 147
 148 config BUSYBOX_CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS
 149         int "DHCP options slack buffer size"
 150         default BUSYBOX_DEFAULT_UDHCPC_SLACK_FOR_BUGGY_SERVERS
 151         range 0 924
 152         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 153         help
 154           Some buggy DHCP servers send DHCP offer packets with option
 155           field larger than we expect (which might also be considered a
 156           buffer overflow attempt). These packets are normally discarded.
 157           If circumstances beyond your control force you to support such
 158           servers, this may help. The upper limit (924) makes dhcpc accept
 159           even 1500 byte packets (maximum-sized ethernet packets).
 160
 161           This option does not make dhcp[cd] emit non-standard
 162           sized packets.
 163
 164           Known buggy DHCP servers:
 165           3Com OfficeConnect Remote 812 ADSL Router:
 166             seems to confuse maximum allowed UDP packet size with
 167             maximum size of entire IP packet, and sends packets which are
 168             28 bytes too large.
 169           Seednet (ISP) VDSL: sends packets 2 bytes too large.