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