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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20661 3c298f89-4303-0410-b956-a3cf2f4a3e73
128 lines
4.4 KiB
Plaintext
128 lines
4.4 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see scripts/kbuild/config-language.txt.
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#
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config BUSYBOX_CONFIG_UDHCPD
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bool "udhcp server (udhcpd)"
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default n
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help
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udhcpd is a DHCP server geared primarily toward embedded systems,
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while striving to be fully functional and RFC compliant.
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config BUSYBOX_CONFIG_DHCPRELAY
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bool "dhcprelay"
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default n
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depends on BUSYBOX_CONFIG_UDHCPD
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help
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dhcprelay listens for dhcp requests on one or more interfaces
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and forwards these requests to a different interface or dhcp
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server.
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config BUSYBOX_CONFIG_DUMPLEASES
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bool "Lease display utility (dumpleases)"
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default n
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depends on BUSYBOX_CONFIG_UDHCPD
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help
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dumpleases displays the leases written out by the udhcpd server.
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Lease times are stored in the file by time remaining in lease, or
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by the absolute time that it expires in seconds from epoch.
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config BUSYBOX_CONFIG_FEATURE_UDHCPD_WRITE_LEASES_EARLY
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bool "Rewrite the lease file at every new acknowledge"
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default n
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depends on BUSYBOX_CONFIG_UDHCPD
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help
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If selected, udhcpd will write a new file with leases every
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time a new lease has been accepted, thus eliminating the need
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to send SIGUSR1 for the initial writing or updating. Any timed
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rewriting remains undisturbed
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config BUSYBOX_CONFIG_DHCPD_LEASES_FILE
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string "Absolute path to lease file"
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default "/var/run/udhcpd.leases"
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depends on BUSYBOX_CONFIG_UDHCPD
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help
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udhcpd stores addresses in a lease file. This is the absolute path
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of the file. Normally it is safe to leave it untouched.
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config BUSYBOX_CONFIG_UDHCPC
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bool "udhcp client (udhcpc)"
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default y
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help
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udhcpc is a DHCP client geared primarily toward embedded systems,
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while striving to be fully functional and RFC compliant.
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The udhcp client negotiates a lease with the DHCP server and
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runs a script when a lease is obtained or lost.
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config BUSYBOX_CONFIG_FEATURE_UDHCPC_ARPING
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bool "Verify that the offered address is free, using ARP ping"
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default n
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depends on BUSYBOX_CONFIG_UDHCPC
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help
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If selected, udhcpc will send ARP probes and make sure
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the offered address is really not in use by anyone. The client
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will DHCPDECLINE the offer if the address is in use,
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and restart the discover process.
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config BUSYBOX_CONFIG_FEATURE_UDHCP_PORT
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bool "Enable '-P port' option for udhcpd and udhcpc"
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default n
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depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
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help
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At the cost of ~300 bytes, enables -P port option.
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This feature is typically not needed.
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config BUSYBOX_CONFIG_UDHCP_DEBUG
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int "Maximum verbosity level for udhcp applets (0..9)"
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default 0
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range 0 9
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depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC || BUSYBOX_CONFIG_DHCPRELAY
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help
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Verbosity can be increased with multiple -v options.
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This options controls how high it can be cranked up.
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Bigger values result in bigger code. Levels above 1
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are very verbose and useful for debugging only.
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config BUSYBOX_CONFIG_FEATURE_UDHCP_RFC3397
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bool "Support for RFC3397 domain search (experimental)"
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default y
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depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
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help
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If selected, both client and server will support passing of domain
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search lists via option 119, specified in RFC3397.
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config BUSYBOX_CONFIG_UDHCPC_DEFAULT_SCRIPT
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string "Absolute path to config script"
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default "/usr/share/udhcpc/default.script"
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depends on BUSYBOX_CONFIG_UDHCPC
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help
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This script is called after udhcpc receives an answer. See
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examples/udhcp for a working example. Normally it is safe
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to leave this untouched.
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config BUSYBOX_CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS
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int "DHCP options slack buffer size"
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default 80
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range 0 924
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depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
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help
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Some buggy DHCP servers send DHCP offer packets with option
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field larger than we expect (which might also be considered a
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buffer overflow attempt). These packets are normally discarded.
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If circumstances beyond your control force you to support such
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servers, this may help. The upper limit (924) makes dhcpc accept
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even 1500 byte packets (maximum-sized ethernet packets).
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This option does not make dhcp[cd] emit non-standard
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sized packets.
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Known buggy DHCP servers:
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3Com OfficeConnect Remote 812 ADSL Router:
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seems to confuse maximum allowed UDP packet size with
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maximum size of entire IP packet, and sends packets which are
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28 bytes too large.
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Seednet (ISP) VDSL: sends packets 2 bytes too large.
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