diff options
Diffstat (limited to 'package/busybox/config/networking/udhcp/Config.in')
| -rw-r--r-- | package/busybox/config/networking/udhcp/Config.in | 82 |
1 files changed, 65 insertions, 17 deletions
diff --git a/package/busybox/config/networking/udhcp/Config.in b/package/busybox/config/networking/udhcp/Config.in index 65462efee7..891dcf8d83 100644 --- a/package/busybox/config/networking/udhcp/Config.in +++ b/package/busybox/config/networking/udhcp/Config.in @@ -4,14 +4,12 @@ # config BUSYBOX_CONFIG_APP_UDHCPD - bool "udhcp Server (udhcpd)" + bool "udhcp server (udhcpd)" default n help - uDHCPd is a DHCP server geared primarily toward embedded systems, + udhcpd is a DHCP server geared primarily toward embedded systems, while striving to be fully functional and RFC compliant. - See http://udhcp.busybox.net for further details. - config BUSYBOX_CONFIG_APP_DHCPRELAY bool "dhcprelay" default n @@ -30,40 +28,58 @@ config BUSYBOX_CONFIG_APP_DUMPLEASES Lease times are stored in the file by time remaining in lease, or by the absolute time that it expires in seconds from epoch. - See http://udhcp.busybox.net for further details. - config BUSYBOX_CONFIG_FEATURE_UDHCPD_WRITE_LEASES_EARLY bool "Rewrite the lease file at every new acknowledge" default n depends on BUSYBOX_CONFIG_APP_UDHCPD help If selected, udhcpd will write a new file with leases every - time a new lease has been accepted, thus eleminating the need - to send SIGUSR1 for the initial writing, or updating. Any timed + time a new lease has been accepted, thus eliminating the need + to send SIGUSR1 for the initial writing or updating. Any timed rewriting remains undisturbed +config BUSYBOX_CONFIG_DHCPD_LEASES_FILE + string "Absolute path to lease file" + default "/var/run/udhcpd.leases" + depends on BUSYBOX_CONFIG_APP_UDHCPD + help + udhcpd stores addresses in a lease file. This is the absolute path + of the file. Normally it is safe to leave it untouched. + config BUSYBOX_CONFIG_APP_UDHCPC - bool "udhcp Client (udhcpc)" + bool "udhcp client (udhcpc)" default y help - uDHCPc is a DHCP client geared primarily toward embedded systems, + udhcpc is a DHCP client geared primarily toward embedded systems, while striving to be fully functional and RFC compliant. The udhcp client negotiates a lease with the DHCP server and - notifies a set of scripts when a lease is obtained or lost. + runs a script when a lease is obtained or lost. - See http://udhcp.busybox.net for further details. +config BUSYBOX_CONFIG_FEATURE_UDHCPC_ARPING + bool "Verify that the offered address is free, using ARP ping" + default n + depends on BUSYBOX_CONFIG_APP_UDHCPC + help + If selected, udhcpc will send ARP probes and make sure + the offered address is really not in use by anyone. The client + will DHCPDECLINE the offer if the address is in use, + and restart the discover process. + +config BUSYBOX_CONFIG_FEATURE_UDHCP_PORT + bool "Enable '-P port' option for udhcpd and udhcpc" + default n + depends on BUSYBOX_CONFIG_APP_UDHCPD || BUSYBOX_CONFIG_APP_UDHCPC + help + At the cost of ~300 bytes, enables -P port option. + This feature is typically not needed. config BUSYBOX_CONFIG_FEATURE_UDHCP_DEBUG bool "Compile udhcp with noisy debugging messages" default n depends on BUSYBOX_CONFIG_APP_UDHCPD || BUSYBOX_CONFIG_APP_UDHCPC help - If selected, udhcpd will output extra debugging output. If using - this option, compile uDHCP with "-g", and do not fork the daemon to - the background. - - See http://udhcp.busybox.net for further details. + If selected, udhcpd will output extra debugging output. config BUSYBOX_CONFIG_FEATURE_RFC3397 bool "Support for RFC3397 domain search (experimental)" @@ -72,3 +88,35 @@ config BUSYBOX_CONFIG_FEATURE_RFC3397 help If selected, both client and server will support passing of domain search lists via option 119, specified in RFC3397. + +config BUSYBOX_CONFIG_DHCPC_DEFAULT_SCRIPT + string "Absolute path to config script" + default "/usr/share/udhcpc/default.script" + depends on BUSYBOX_CONFIG_APP_UDHCPC + help + This script is called after udhcpc receives an answer. See + examples/udhcp for a working example. Normally it is safe + to leave this untouched. + +config BUSYBOX_CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS + int "DHCP options slack buffer size" + default 80 + range 0 924 + depends on BUSYBOX_CONFIG_APP_UDHCPD || BUSYBOX_CONFIG_APP_UDHCPC + help + Some buggy DHCP servers send DHCP offer packets with option + field larger than we expect (which might also be considered a + buffer overflow attempt). These packets are normally discarded. + If circumstances beyond your control force you to support such + servers, this may help. The upper limit (924) makes dhcpc accept + even 1500 byte packets (maximum-sized ethernet packets). + + This option does not make dhcp[cd] emit non-standard + sized packets. + + Known buggy DHCP servers: + 3Com OfficeConnect Remote 812 ADSL Router: + seems to confuse maximum allowed UDP packet size with + maximum size of entire IP packet, and sends packets which are + 28 bytes too large. + Seednet (ISP) VDSL: sends packets 2 bytes too large. |