2 # For a description of the syntax of this configuration file,
3 # see scripts/kbuild/config-language.txt.
6 menu "Networking Utilities"
11 bool "Enable IPv6 support"
14 Enable IPv6 support in busybox.
15 This adds IPv6 support in the networking applets.
17 config FEATURE_UNIX_LOCAL
18 bool "Enable Unix domain socket support (usually not needed)"
21 Enable Unix domain socket support in all busybox networking
22 applets. Address of the form local:/path/to/unix/socket
25 This extension is almost never used in real world usage.
26 You most likely want to say N.
28 config FEATURE_PREFER_IPV4_ADDRESS
29 bool "Prefer IPv4 addresses from DNS queries"
31 depends on FEATURE_IPV6
33 Use IPv4 address of network host if it has one.
35 If this option is off, the first returned address will be used.
36 This may cause problems when your DNS server is IPv6-capable and
37 is returning IPv6 host addresses too. If IPv6 address
38 precedes IPv4 one in DNS reply, busybox network applets
39 (e.g. wget) will use IPv6 address. On an IPv6-incapable host
40 or network applets will fail to connect to the host
43 config VERBOSE_RESOLUTION_ERRORS
44 bool "Verbose resolution errors"
47 Enable if you are not satisfied with simplistic
48 "can't resolve 'hostname.com'" and want to know more.
49 This may increase size of your executable a bit.
56 Manipulate the system ARP cache.
63 Ping hosts by ARP packets.
70 Manage ethernet bridges.
71 Supports addbr/delbr and addif/delif.
73 config FEATURE_BRCTL_FANCY
78 Add support for extended option like:
79 setageing, setfd, sethello, setmaxage,
80 setpathcost, setportprio, setbridgeprio,
82 This adds about 600 bytes.
84 config FEATURE_BRCTL_SHOW
87 depends on BRCTL && FEATURE_BRCTL_FANCY
89 Add support for option which prints the current config:
96 Small and static DNS server daemon.
101 select PLATFORM_LINUX
103 Send a magic packet to wake up sleeping machines.
108 select FEATURE_SYSLOG
110 fakeidentd listens on the ident port and returns a predefined
111 fake value on any query.
117 simple FTP daemon. You have to run it via inetd.
119 config FEATURE_FTP_WRITE
120 bool "Enable upload commands"
124 Enable all kinds of FTP upload commands (-w option)
126 config FEATURE_FTPD_ACCEPT_BROKEN_LIST
127 bool "Enable workaround for RFC-violating clients"
131 Some ftp clients (among them KDE's Konqueror) issue illegal
132 "LIST -l" requests. This option works around such problems.
133 It might prevent you from listing files starting with "-" and
134 it increases the code size by ~40 bytes.
135 Most other ftp servers seem to behave similar to this.
137 config FEATURE_FTP_AUTHENTICATION
138 bool "Enable authentication"
142 Enable basic system login as seen in telnet etc.
148 Retrieve a remote file via FTP.
154 Store a remote file via FTP.
156 config FEATURE_FTPGETPUT_LONG_OPTIONS
157 bool "Enable long options in ftpget/ftpput"
159 depends on LONG_OPTS && (FTPGET || FTPPUT)
161 Support long options for the ftpget/ftpput applet.
167 Serve web pages via an HTTP server.
169 config FEATURE_HTTPD_RANGES
170 bool "Support 'Ranges:' header"
174 Makes httpd emit "Accept-Ranges: bytes" header and understand
175 "Range: bytes=NNN-[MMM]" header. Allows for resuming interrupted
176 downloads, seeking in multimedia players etc.
178 config FEATURE_HTTPD_SETUID
179 bool "Enable -u <user> option"
183 This option allows the server to run as a specific user
184 rather than defaulting to the user that starts the server.
185 Use of this option requires special privileges to change to a
188 config FEATURE_HTTPD_BASIC_AUTH
189 bool "Enable Basic http Authentication"
193 Utilizes password settings from /etc/httpd.conf for basic
194 authentication on a per url basis.
195 Example for httpd.conf file:
198 config FEATURE_HTTPD_AUTH_MD5
199 bool "Support MD5 crypted passwords for http Authentication"
201 depends on FEATURE_HTTPD_BASIC_AUTH
203 Enables encrypted passwords, and wildcard user/passwords
205 User '*' means 'any system user name is ok',
206 password of '*' means 'use system password for this user'
208 /adm:toor:$1$P/eKnWXS$aI1aPGxT.dJD5SzqAKWrF0
212 config FEATURE_HTTPD_CGI
213 bool "Support Common Gateway Interface (CGI)"
217 This option allows scripts and executables to be invoked
218 when specific URLs are requested.
220 config FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
221 bool "Support for running scripts through an interpreter"
223 depends on FEATURE_HTTPD_CGI
225 This option enables support for running scripts through an
226 interpreter. Turn this on if you want PHP scripts to work
227 properly. You need to supply an additional line in your
229 *.php:/path/to/your/php
231 config FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
232 bool "Set REMOTE_PORT environment variable for CGI"
234 depends on FEATURE_HTTPD_CGI
236 Use of this option can assist scripts in generating
237 references that contain a unique port number.
239 config FEATURE_HTTPD_ENCODE_URL_STR
240 bool "Enable -e option (useful for CGIs written as shell scripts)"
244 This option allows html encoding of arbitrary strings for display
245 by the browser. Output goes to stdout.
246 For example, httpd -e "<Hello World>" produces
247 "<Hello World>".
249 config FEATURE_HTTPD_ERROR_PAGES
250 bool "Support for custom error pages"
254 This option allows you to define custom error pages in
255 the configuration file instead of the default HTTP status
256 error pages. For instance, if you add the line:
258 in the config file, the server will respond the specified
259 '/path/e404.html' file instead of the terse '404 NOT FOUND'
262 config FEATURE_HTTPD_PROXY
263 bool "Support for reverse proxy"
267 This option allows you to define URLs that will be forwarded
268 to another HTTP server. To setup add the following line to the
270 P:/url/:http://hostname[:port]/new/path/
271 Then a request to /url/myfile will be forwarded to
272 http://hostname[:port]/new/path/myfile.
274 config FEATURE_HTTPD_GZIP
275 bool "Support for GZIP content encoding"
279 Makes httpd send files using GZIP content encoding if the
280 client supports it and a pre-compressed <file>.gz exists.
285 select PLATFORM_LINUX
287 Ifconfig is used to configure the kernel-resident network interfaces.
289 config FEATURE_IFCONFIG_STATUS
290 bool "Enable status reporting output (+7k)"
294 If ifconfig is called with no arguments it will display the status
295 of the currently active interfaces.
297 config FEATURE_IFCONFIG_SLIP
298 bool "Enable slip-specific options \"keepalive\" and \"outfill\""
302 Allow "keepalive" and "outfill" support for SLIP. If you're not
303 planning on using serial lines, leave this unchecked.
305 config FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
306 bool "Enable options \"mem_start\", \"io_addr\", and \"irq\""
310 Allow the start address for shared memory, start address for I/O,
311 and/or the interrupt line used by the specified device.
313 config FEATURE_IFCONFIG_HW
314 bool "Enable option \"hw\" (ether only)"
318 Set the hardware address of this interface, if the device driver
319 supports this operation. Currently, we only support the 'ether'
322 config FEATURE_IFCONFIG_BROADCAST_PLUS
323 bool "Set the broadcast automatically"
327 Setting this will make ifconfig attempt to find the broadcast
328 automatically if the value '+' is used.
333 select PLATFORM_LINUX
335 Userspace application to bind several interfaces
336 to a logical interface (use with kernel bonding driver).
341 select PLATFORM_LINUX
343 Network interface plug detection daemon.
349 Activate or deactivate the specified interfaces. This applet makes
350 use of either "ifconfig" and "route" or the "ip" command to actually
351 configure network interfaces. Therefore, you will probably also want
352 to enable either IFCONFIG and ROUTE, or enable
353 FEATURE_IFUPDOWN_IP and the various IP options. Of
354 course you could use non-busybox versions of these programs, so
355 against my better judgement (since this will surely result in plenty
356 of support questions on the mailing list), I do not force you to
357 enable these additional options. It is up to you to supply either
358 "ifconfig", "route" and "run-parts" or the "ip" command, either
359 via busybox or via standalone utilities.
361 config IFUPDOWN_IFSTATE_PATH
362 string "Absolute path to ifstate file"
363 default "/var/run/ifstate"
366 ifupdown keeps state information in a file called ifstate.
367 Typically it is located in /var/run/ifstate, however
368 some distributions tend to put it in other places
369 (debian, for example, uses /etc/network/run/ifstate).
370 This config option defines location of ifstate.
372 config FEATURE_IFUPDOWN_IP
377 Use the iproute "ip" command to implement "ifup" and "ifdown", rather
378 than the default of using the older 'ifconfig' and 'route' utilities.
380 config FEATURE_IFUPDOWN_IP_BUILTIN
381 bool "Use busybox ip applet"
383 depends on FEATURE_IFUPDOWN_IP
384 select PLATFORM_LINUX
386 select FEATURE_IP_ADDRESS
387 select FEATURE_IP_LINK
388 select FEATURE_IP_ROUTE
390 Use the busybox iproute "ip" applet to implement "ifupdown".
392 If left disabled, you must install the full-blown iproute2
393 utility or the "ifup" and "ifdown" applets will not work.
395 config FEATURE_IFUPDOWN_IFCONFIG_BUILTIN
396 bool "Use busybox ifconfig and route applets"
398 depends on IFUPDOWN && !FEATURE_IFUPDOWN_IP
402 Use the busybox iproute "ifconfig" and "route" applets to
403 implement the "ifup" and "ifdown" utilities.
405 If left disabled, you must install the full-blown ifconfig
406 and route utilities, or the "ifup" and "ifdown" applets will not
409 config FEATURE_IFUPDOWN_IPV4
410 bool "Support for IPv4"
414 If you want ifup/ifdown to talk IPv4, leave this on.
416 config FEATURE_IFUPDOWN_IPV6
417 bool "Support for IPv6"
419 depends on IFUPDOWN && FEATURE_IPV6
421 If you need support for IPv6, turn this option on.
424 ###config FEATURE_IFUPDOWN_IPX
425 ### bool "Support for IPX"
427 ### depends on IFUPDOWN
429 ### If this option is selected you can use busybox to work with IPX
432 config FEATURE_IFUPDOWN_MAPPING
433 bool "Enable mapping support"
437 This enables support for the "mapping" stanza, unless you have
438 a weird network setup you don't need it.
440 config FEATURE_IFUPDOWN_EXTERNAL_DHCP
441 bool "Support for external dhcp clients"
445 This enables support for the external dhcp clients. Clients are
446 tried in the following order: dhcpcd, dhclient, pump and udhcpc.
447 Otherwise, if udhcpc applet is enabled, it is used.
448 Otherwise, ifup/ifdown will have no support for DHCP.
453 select FEATURE_SYSLOG
455 Internet superserver daemon
457 config FEATURE_INETD_SUPPORT_BUILTIN_ECHO
458 bool "Support echo service"
462 Echo received data internal inetd service
464 config FEATURE_INETD_SUPPORT_BUILTIN_DISCARD
465 bool "Support discard service"
469 Internet /dev/null internal inetd service
471 config FEATURE_INETD_SUPPORT_BUILTIN_TIME
472 bool "Support time service"
476 Return 32 bit time since 1900 internal inetd service
478 config FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME
479 bool "Support daytime service"
483 Return human-readable time internal inetd service
485 config FEATURE_INETD_SUPPORT_BUILTIN_CHARGEN
486 bool "Support chargen service"
490 Familiar character generator internal inetd service
492 config FEATURE_INETD_RPC
493 bool "Support RPC services"
494 default n # very rarely used, and needs Sun RPC support in libc
496 select FEATURE_HAVE_RPC
498 Support Sun-RPC based services
503 select PLATFORM_LINUX
505 The "ip" applet is a TCP/IP interface configuration and routing
506 utility. You generally don't need "ip" to use busybox with
509 config FEATURE_IP_ADDRESS
514 Address manipulation support for the "ip" applet.
516 config FEATURE_IP_LINK
521 Configure network devices with "ip".
523 config FEATURE_IP_ROUTE
528 Add support for routing table management to "ip".
530 config FEATURE_IP_ROUTE_DIR
531 string "ip route configuration directory"
532 default "/etc/iproute2"
533 depends on FEATURE_IP_ROUTE
535 Location of the "ip" applet routing configuration.
537 config FEATURE_IP_TUNNEL
542 Add support for tunneling commands to "ip".
544 config FEATURE_IP_RULE
549 Add support for rule commands to "ip".
551 config FEATURE_IP_NEIGH
556 Add support for neighbor commands to "ip".
558 config FEATURE_IP_SHORT_FORMS
559 bool "Support short forms of ip commands"
563 Also support short-form of ip <OBJECT> commands:
567 ip tunnel -> iptunnel
571 Say N unless you desparately need the short form of the ip
574 config FEATURE_IP_RARE_PROTOCOLS
575 bool "Support displaying rarely used link types"
579 If you are not going to use links of type "frad", "econet",
580 "bif" etc, you probably don't need to enable this.
581 Ethernet, wireless, infrared, ppp/slip, ip tunnelling
582 link types are supported without this option selected.
587 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ADDRESS
592 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_LINK
597 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ROUTE
602 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_TUNNEL
607 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_RULE
612 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_NEIGH
618 ipcalc takes an IP address and netmask and calculates the
619 resulting broadcast, network, and host range.
621 config FEATURE_IPCALC_FANCY
622 bool "Fancy IPCALC, more options, adds 1 kbyte"
626 Adds the options hostname, prefix and silent to the output of
629 config FEATURE_IPCALC_LONG_OPTIONS
630 bool "Enable long options"
632 depends on IPCALC && LONG_OPTS
634 Support long options for the ipcalc applet.
639 select PLATFORM_LINUX
641 netstat prints information about the Linux networking subsystem.
643 config FEATURE_NETSTAT_WIDE
644 bool "Enable wide netstat output"
648 Add support for wide columns. Useful when displaying IPv6 addresses
651 config FEATURE_NETSTAT_PRG
652 bool "Enable PID/Program name output"
656 Add support for -p flag to print out PID and program name.
663 nslookup is a tool to query Internet name servers.
668 select PLATFORM_LINUX
670 The NTP client/server daemon.
672 config FEATURE_NTPD_SERVER
673 bool "Make ntpd usable as a NTP server"
677 Make ntpd usable as a NTP server. If you disable this option
678 ntpd will be usable only as a NTP client.
680 config FEATURE_NTPD_CONF
681 bool "Make ntpd understand /etc/ntp.conf"
685 Make ntpd look in /etc/ntp.conf for peers. Only "server address"
692 Simple network port scanner.
697 select PLATFORM_LINUX
699 Route displays or manipulates the kernel's IP routing tables.
704 select PLATFORM_LINUX
706 slattach is a small utility to attach network interfaces to serial
713 # show / manipulate traffic control settings
715 #config FEATURE_TC_INGRESS
723 tcpsvd listens on a TCP port and runs a program for each new
730 Telnet is an interface to the TELNET protocol, but is also commonly
731 used to test other simple protocols.
733 config FEATURE_TELNET_TTYPE
734 bool "Pass TERM type to remote host"
738 Setting this option will forward the TERM environment variable to the
739 remote host you are connecting to. This is useful to make sure that
740 things like ANSI colors and other control sequences behave.
742 config FEATURE_TELNET_AUTOLOGIN
743 bool "Pass USER type to remote host"
747 Setting this option will forward the USER environment variable to the
748 remote host you are connecting to. This is useful when you need to
749 log into a machine without telling the username (autologin). This
750 option enables `-a' and `-l USER' arguments.
755 select FEATURE_SYSLOG
757 A daemon for the TELNET protocol, allowing you to log onto the host
758 running the daemon. Please keep in mind that the TELNET protocol
759 sends passwords in plain text. If you can't afford the space for an
760 SSH daemon and you trust your network, you may say 'y' here. As a
761 more secure alternative, you should seriously consider installing the
762 very small Dropbear SSH daemon instead:
763 http://matt.ucc.asn.au/dropbear/dropbear.html
765 Note that for busybox telnetd to work you need several things:
766 First of all, your kernel needs:
769 Next, you need a /dev/pts directory on your root filesystem:
772 drwxr-xr-x 2 root root 0 Sep 23 13:21 /dev/pts/
774 Next you need the pseudo terminal master multiplexer /dev/ptmx:
777 crw-rw-rw- 1 root tty 5, 2 Sep 23 13:55 /dev/ptmx
779 Any /dev/ttyp[0-9]* files you may have can be removed.
780 Next, you need to mount the devpts filesystem on /dev/pts using:
782 mount -t devpts devpts /dev/pts
784 You need to be sure that busybox has LOGIN and
785 FEATURE_SUID enabled. And finally, you should make
786 certain that Busybox has been installed setuid root:
788 chown root.root /bin/busybox
789 chmod 4755 /bin/busybox
791 with all that done, telnetd _should_ work....
794 config FEATURE_TELNETD_STANDALONE
795 bool "Support standalone telnetd (not inetd only)"
799 Selecting this will make telnetd able to run standalone.
801 config FEATURE_TELNETD_INETD_WAIT
802 bool "Support -w SEC option (inetd wait mode)"
804 depends on FEATURE_TELNETD_STANDALONE
806 This option allows you to run telnetd in "inet wait" mode.
807 Example inetd.conf line (note "wait", not usual "nowait"):
809 telnet stream tcp wait root /bin/telnetd telnetd -w10
811 In this example, inetd passes _listening_ socket_ as fd 0
812 to telnetd when connection appears.
813 telnetd will wait for connections until all existing
814 connections are closed, and no new connections
815 appear during 10 seconds. Then it exits, and inetd continues
816 to listen for new connections.
818 This option is rarely used. "tcp nowait" is much more usual
819 way of running tcp services, including telnetd.
820 You most probably want to say N here.
826 This enables the Trivial File Transfer Protocol client program. TFTP
827 is usually used for simple, small transfers such as a root image
828 for a network-enabled bootloader.
834 This enables the Trivial File Transfer Protocol server program.
835 It expects that stdin is a datagram socket and a packet
836 is already pending on it. It will exit after one transfer.
837 In other words: it should be run from inetd in nowait mode,
838 or from udpsvd. Example: "udpsvd -E 0 69 tftpd DIR"
840 comment "Common options for tftp/tftpd"
841 depends on TFTP || TFTPD
843 config FEATURE_TFTP_GET
844 bool "Enable 'tftp get' and/or tftpd upload code"
846 depends on TFTP || TFTPD
848 Add support for the GET command within the TFTP client. This allows
849 a client to retrieve a file from a TFTP server.
850 Also enable upload support in tftpd, if tftpd is selected.
852 Note: this option does _not_ make tftpd capable of download
853 (the usual operation people need from it)!
855 config FEATURE_TFTP_PUT
856 bool "Enable 'tftp put' and/or tftpd download code"
858 depends on TFTP || TFTPD
860 Add support for the PUT command within the TFTP client. This allows
861 a client to transfer a file to a TFTP server.
862 Also enable download support in tftpd, if tftpd is selected.
864 config FEATURE_TFTP_BLOCKSIZE
865 bool "Enable 'blksize' and 'tsize' protocol options"
867 depends on TFTP || TFTPD
869 Allow tftp to specify block size, and tftpd to understand
870 "blksize" and "tsize" options.
872 config FEATURE_TFTP_PROGRESS_BAR
873 bool "Enable tftp progress meter"
875 depends on TFTP && FEATURE_TFTP_BLOCKSIZE
882 depends on TFTP || TFTPD
884 Make tftp[d] print debugging messages on stderr.
885 This is useful if you are diagnosing a bug in tftp[d].
890 select PLATFORM_LINUX
892 Utility to trace the route of IP packets.
897 depends on FEATURE_IPV6 && TRACEROUTE
899 Utility to trace the route of IPv6 packets.
901 config FEATURE_TRACEROUTE_VERBOSE
902 bool "Enable verbose output"
904 depends on TRACEROUTE
906 Add some verbosity to traceroute. This includes among other things
907 hostnames and ICMP response types.
909 config FEATURE_TRACEROUTE_USE_ICMP
910 bool "Enable -I option (use ICMP instead of UDP)"
912 depends on TRACEROUTE
914 Add option -I to use ICMP ECHO instead of UDP datagrams.
919 select PLATFORM_LINUX
921 tunctl creates or deletes tun devices.
923 config FEATURE_TUNCTL_UG
924 bool "Support owner:group assignment"
928 Allow to specify owner and group of newly created interface.
929 340 bytes of pure bloat. Say no here.
931 source networking/udhcp/Config.in
933 config IFUPDOWN_UDHCPC_CMD_OPTIONS
934 string "ifup udhcpc command line options"
936 depends on IFUPDOWN && UDHCPC
938 Command line options to pass to udhcpc from ifup.
939 Intended to alter options not available in /etc/network/interfaces.
940 (IE: --syslog --background etc...)
946 udpsvd listens on an UDP port and runs a program for each new
952 select PLATFORM_LINUX
954 Creates, removes, and configures VLAN interfaces
959 select PLATFORM_LINUX
960 select FEATURE_SYSLOG
962 ZCIP provides ZeroConf IPv4 address selection, according to RFC 3927.
963 It's a daemon that allocates and defends a dynamically assigned
964 address on the 169.254/16 network, requiring no system administrator.
966 See http://www.zeroconf.org for further details, and "zcip.script"
967 in the busybox examples.