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gerrit.nordix.org / codeaurora / busybox / 0effc2410b219de8c1966752ed217d67943fce69 / . / networking / udhcp / Config.in
blob: 26cc8f501770dd19096272caa87494d2136d6193 [file] [log] [blame]
Mike Frysinger7031f622006-05-08 03:20:50 +0000[diff] [blame]1#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]6config APP_UDHCPD
Mike Frysinger7031f622006-05-08 03:20:50 +0000[diff] [blame]7 bool "udhcp Server (udhcpd)"
8 default n
9 help
10 uDHCPd is a DHCP server geared primarily toward embedded systems,
11 while striving to be fully functional and RFC compliant.
12
13 See http://udhcp.busybox.net for further details.
14
Denis Vlasenko736230e2006-11-20 19:40:36 +0000[diff] [blame]15config APP_DHCPRELAY
16 bool "dhcprelay"
17 default n
18 depends on APP_UDHCPD
19 help
20 dhcprelay listens for dhcp requests on one or more interfaces
21 and forwards these requests to a different interface or dhcp
22 server.
23
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]24config APP_DUMPLEASES
Mike Frysinger91a33902006-07-24 07:35:52 +0000[diff] [blame]25 bool "Lease display utility (dumpleases)"
26 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]27 depends on APP_UDHCPD
Mike Frysinger91a33902006-07-24 07:35:52 +0000[diff] [blame]28 help
29 dumpleases displays the leases written out by the udhcpd server.
30 Lease times are stored in the file by time remaining in lease, or
31 by the absolute time that it expires in seconds from epoch.
32
33 See http://udhcp.busybox.net for further details.
34
Denis Vlasenkoc82b5102007-07-01 17:05:57 +0000[diff] [blame]35config FEATURE_UDHCPD_WRITE_LEASES_EARLY
36 bool "Rewrite the lease file at every new acknowledge"
37 default n
38 depends on APP_UDHCPD
39 help
40 If selected, udhcpd will write a new file with leases every
41 time a new lease has been accepted, thus eleminating the need
42 to send SIGUSR1 for the initial writing, or updating. Any timed
43 rewriting remains undisturbed
44
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]45config APP_UDHCPC
Mike Frysinger7031f622006-05-08 03:20:50 +0000[diff] [blame]46 bool "udhcp Client (udhcpc)"
47 default n
48 help
49 uDHCPc is a DHCP client geared primarily toward embedded systems,
50 while striving to be fully functional and RFC compliant.
51
52 The udhcp client negotiates a lease with the DHCP server and
53 notifies a set of scripts when a lease is obtained or lost.
54
55 See http://udhcp.busybox.net for further details.
56
Denis Vlasenko223bc972007-11-22 00:58:49 +0000[diff] [blame]57config FEATURE_UDHCPC_ARPING
58 bool "Ask udhcpc to verify that the offered address is free, using arpping"
59 default y
60 depends on APP_UDHCPC
61 help
62 If selected, udhcpc will use arpping to make sure the offered address
63 is really available. The client will DHCPDECLINE the offer if the
64 address is in use, and restart the discover process.
65
66
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]67config FEATURE_UDHCP_DEBUG
Mike Frysinger91a33902006-07-24 07:35:52 +0000[diff] [blame]68 bool "Compile udhcp with noisy debugging messages"
Mike Frysinger7031f622006-05-08 03:20:50 +0000[diff] [blame]69 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]70 depends on APP_UDHCPD || APP_UDHCPC
Mike Frysinger7031f622006-05-08 03:20:50 +0000[diff] [blame]71 help
72 If selected, udhcpd will output extra debugging output. If using
73 this option, compile uDHCP with "-g", and do not fork the daemon to
74 the background.
75
76 See http://udhcp.busybox.net for further details.
Denis Vlasenko50664732007-02-27 21:15:08 +0000[diff] [blame]77
78config FEATURE_RFC3397
79 bool "Support for RFC3397 domain search (experimental)"
80 default n
81 depends on APP_UDHCPD || APP_UDHCPC
82 help
83 If selected, both client and server will support passing of domain
84 search lists via option 119, specified in RFC3397.
Denis Vlasenko72e76042007-11-25 03:15:24 +0000[diff] [blame]85
86config UDHCPC_SLACK_FOR_BUGGY_SERVERS
87 int "DHCP options slack buffer size"
88 default 80
89 range 0 924
90 depends on APP_UDHCPD || APP_UDHCPC
91 help
92 Some buggy DHCP servers will send DHCP offer packets with option
93 field larger than we expect (which might also be considered a
94 buffer overflow attempt). These packets are normally discarded.
95 If circumstances beyond your control force you to support such
96 servers, this may help. The upper limit (924) makes dhcpc accept
97 even 1500 byte packets (maximum-sized ethernet packets).
98
99 This options does not make dhcp[cd] emit non-standard
100 sized packets.
101
102 Known buggy DHCP servers:
103 3Com OfficeConnect Remote 812 ADSL Router:
104 seems to confuse maximum allowed UDP packet size with
105 maximum size of entire IP packet, and sends packets which are
106 28 bytes too large.
Denis Vlasenko2bec5132007-12-02 08:56:53 +0000[diff] [blame]107 Seednet (ISP) VDSL: sends packets 2 bytes too big.