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 docs/Kconfig-language.txt.
   5 #
   6
   7 config BUSYBOX_CONFIG_UDHCPD
   8         bool "udhcpd (21 kb)"
   9         default BUSYBOX_DEFAULT_UDHCPD
  10         help
  11         udhcpd is a DHCP server geared primarily toward embedded systems,
  12         while striving to be fully functional and RFC compliant.
  13
  14 config BUSYBOX_CONFIG_FEATURE_UDHCPD_BASE_IP_ON_MAC
  15         bool "Select IP address based on client MAC"
  16         default BUSYBOX_DEFAULT_FEATURE_UDHCPD_BASE_IP_ON_MAC
  17         depends on BUSYBOX_CONFIG_UDHCPD
  18         help
  19         If selected, udhcpd will base its selection of IP address to offer
  20         on the client's hardware address. Otherwise udhcpd uses the next
  21         consecutive free address.
  22
  23         This reduces the frequency of IP address changes for clients
  24         which let their lease expire, and makes consecutive DHCPOFFERS
  25         for the same client to (almost always) contain the same
  26         IP address.
  27
  28 config BUSYBOX_CONFIG_FEATURE_UDHCPD_WRITE_LEASES_EARLY
  29         bool "Rewrite lease file at every new acknowledge"
  30         default BUSYBOX_DEFAULT_FEATURE_UDHCPD_WRITE_LEASES_EARLY
  31         depends on BUSYBOX_CONFIG_UDHCPD
  32         help
  33         If selected, udhcpd will write a new file with leases every
  34         time a new lease has been accepted, thus eliminating the need
  35         to send SIGUSR1 for the initial writing or updating. Any timed
  36         rewriting remains undisturbed.
  37
  38 config BUSYBOX_CONFIG_DHCPD_LEASES_FILE
  39         string "Absolute path to lease file"
  40         default BUSYBOX_DEFAULT_DHCPD_LEASES_FILE
  41         depends on BUSYBOX_CONFIG_UDHCPD
  42         help
  43         udhcpd stores addresses in a lease file. This is the absolute path
  44         of the file. Normally it is safe to leave it untouched.
  45
  46 config BUSYBOX_CONFIG_DUMPLEASES
  47         bool "dumpleases (5.1 kb)"
  48         default BUSYBOX_DEFAULT_DUMPLEASES
  49         help
  50         dumpleases displays the leases written out by the udhcpd.
  51         Lease times are stored in the file by time remaining in lease, or
  52         by the absolute time that it expires in seconds from epoch.
  53
  54 config BUSYBOX_CONFIG_DHCPRELAY
  55         bool "dhcprelay (5.2 kb)"
  56         default BUSYBOX_DEFAULT_DHCPRELAY
  57         help
  58         dhcprelay listens for DHCP requests on one or more interfaces
  59         and forwards these requests to a different interface or DHCP
  60         server.
  61
  62 config BUSYBOX_CONFIG_UDHCPC
  63         bool "udhcpc (24 kb)"
  64         default BUSYBOX_DEFAULT_UDHCPC
  65         help
  66         udhcpc is a DHCP client geared primarily toward embedded systems,
  67         while striving to be fully functional and RFC compliant.
  68
  69         The udhcp client negotiates a lease with the DHCP server and
  70         runs a script when a lease is obtained or lost.
  71
  72 config BUSYBOX_CONFIG_FEATURE_UDHCPC_ARPING
  73         bool "Verify that the offered address is free, using ARP ping"
  74         default BUSYBOX_DEFAULT_FEATURE_UDHCPC_ARPING
  75         depends on BUSYBOX_CONFIG_UDHCPC
  76         help
  77         If selected, udhcpc will send ARP probes and make sure
  78         the offered address is really not in use by anyone. The client
  79         will DHCPDECLINE the offer if the address is in use,
  80         and restart the discover process.
  81
  82 config BUSYBOX_CONFIG_FEATURE_UDHCPC_SANITIZEOPT
  83         bool "Do not pass malformed host and domain names"
  84         default BUSYBOX_DEFAULT_FEATURE_UDHCPC_SANITIZEOPT
  85         depends on BUSYBOX_CONFIG_UDHCPC
  86         help
  87         If selected, udhcpc will check some options (such as option 12 -
  88         hostname) and if they don't look like valid hostnames
  89         (for example, if they start with dash or contain spaces),
  90         they will be replaced with string "bad" when exporting
  91         to the environment.
  92
  93 config BUSYBOX_CONFIG_UDHCPC_DEFAULT_SCRIPT
  94         string "Absolute path to config script"
  95         default BUSYBOX_DEFAULT_UDHCPC_DEFAULT_SCRIPT
  96         depends on BUSYBOX_CONFIG_UDHCPC || BUSYBOX_CONFIG_UDHCPC6
  97         help
  98         This script is called after udhcpc receives an answer. See
  99         examples/udhcp for a working example. Normally it is safe
 100         to leave this untouched.
 101
 102 # udhcpc6 config is inserted here:
 103 config BUSYBOX_CONFIG_UDHCPC6
 104         bool "udhcpc6 (21 kb)"
 105         default BUSYBOX_DEFAULT_UDHCPC6
 106         depends on BUSYBOX_CONFIG_FEATURE_IPV6
 107         help
 108         udhcpc6 is a DHCPv6 client
 109
 110 config BUSYBOX_CONFIG_FEATURE_UDHCPC6_RFC3646
 111         bool "Support RFC 3646 (DNS server and search list)"
 112         default BUSYBOX_DEFAULT_FEATURE_UDHCPC6_RFC3646
 113         depends on BUSYBOX_CONFIG_UDHCPC6
 114         help
 115         List of DNS servers and domain search list can be requested with
 116         "-O dns" and "-O search". If server gives these values,
 117         they will be set in environment variables "dns" and "search".
 118
 119 config BUSYBOX_CONFIG_FEATURE_UDHCPC6_RFC4704
 120         bool "Support RFC 4704 (Client FQDN)"
 121         default BUSYBOX_DEFAULT_FEATURE_UDHCPC6_RFC4704
 122         depends on BUSYBOX_CONFIG_UDHCPC6
 123         help
 124         You can request FQDN to be given by server using "-O fqdn".
 125
 126 config BUSYBOX_CONFIG_FEATURE_UDHCPC6_RFC4833
 127         bool "Support RFC 4833 (Timezones)"
 128         default BUSYBOX_DEFAULT_FEATURE_UDHCPC6_RFC4833
 129         depends on BUSYBOX_CONFIG_UDHCPC6
 130         help
 131         You can request POSIX timezone with "-O tz" and timezone name
 132         with "-O timezone".
 133
 134 config BUSYBOX_CONFIG_FEATURE_UDHCPC6_RFC5970
 135         bool "Support RFC 5970 (Network Boot)"
 136         default BUSYBOX_DEFAULT_FEATURE_UDHCPC6_RFC5970
 137         depends on BUSYBOX_CONFIG_UDHCPC6
 138         help
 139         You can request bootfile-url with "-O bootfile_url" and
 140         bootfile-params with "-O bootfile_params".
 141
 142 comment "Common options for DHCP applets"
 143         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC || BUSYBOX_CONFIG_UDHCPC6 || BUSYBOX_CONFIG_DHCPRELAY
 144
 145 config BUSYBOX_CONFIG_FEATURE_UDHCP_PORT
 146         bool "Enable '-P port' option for udhcpd and udhcpc"
 147         default BUSYBOX_DEFAULT_FEATURE_UDHCP_PORT
 148         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC || BUSYBOX_CONFIG_UDHCPC6
 149         help
 150         At the cost of ~300 bytes, enables -P port option.
 151         This feature is typically not needed.
 152
 153 config BUSYBOX_CONFIG_UDHCP_DEBUG
 154         int "Maximum verbosity level (0..9)"
 155         default BUSYBOX_DEFAULT_UDHCP_DEBUG
 156         range 0 9
 157         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC || BUSYBOX_CONFIG_UDHCPC6 || BUSYBOX_CONFIG_DHCPRELAY
 158         help
 159         Verbosity can be increased with multiple -v options.
 160         This option controls how high it can be cranked up.
 161
 162         Bigger values result in bigger code. Levels above 1
 163         are very verbose and useful for debugging only.
 164
 165 config BUSYBOX_CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS
 166         int "DHCP options slack buffer size"
 167         default BUSYBOX_DEFAULT_UDHCPC_SLACK_FOR_BUGGY_SERVERS
 168         range 0 924
 169         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 170         help
 171         Some buggy DHCP servers send DHCP offer packets with option
 172         field larger than we expect (which might also be considered a
 173         buffer overflow attempt). These packets are normally discarded.
 174         If circumstances beyond your control force you to support such
 175         servers, this may help. The upper limit (924) makes udhcpc accept
 176         even 1500 byte packets (maximum-sized ethernet packets).
 177
 178         This option does not make udhcp[cd] emit non-standard
 179         sized packets.
 180
 181         Known buggy DHCP servers:
 182         3Com OfficeConnect Remote 812 ADSL Router:
 183                 seems to confuse maximum allowed UDP packet size with
 184                 maximum size of entire IP packet, and sends packets
 185                 which are 28 bytes too large.
 186         Seednet (ISP) VDSL: sends packets 2 bytes too large.
 187
 188 config BUSYBOX_CONFIG_FEATURE_UDHCP_RFC3397
 189         bool "Support RFC 3397 domain search options"
 190         default BUSYBOX_DEFAULT_FEATURE_UDHCP_RFC3397
 191         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 192         help
 193         If selected, both client and server will support passing of domain
 194         search lists via option 119, specified in RFC 3397,
 195         and SIP servers option 120, specified in RFC 3361.
 196
 197 config BUSYBOX_CONFIG_FEATURE_UDHCP_8021Q
 198         bool "Support 802.1Q VLAN parameters options"
 199         default BUSYBOX_DEFAULT_FEATURE_UDHCP_8021Q
 200         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 201         help
 202         If selected, both client and server will support passing of VLAN
 203         ID and priority via options 132 and 133 as per 802.1Q.