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
85 bool "Support show, showmac and showstp"
87 depends on BRCTL && FEATURE_BRCTL_FANCY
89 Add support for option which prints the current config:
90 showmacs, showstp, show
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.
141 Retrieve a remote file via FTP.
147 Store a remote file via FTP.
149 config FEATURE_FTPGETPUT_LONG_OPTIONS
150 bool "Enable long options in ftpget/ftpput"
152 depends on LONG_OPTS && (FTPGET || FTPPUT)
154 Support long options for the ftpget/ftpput applet.
160 Show or set the system's host name.
166 Serve web pages via an HTTP server.
168 config FEATURE_HTTPD_RANGES
169 bool "Support 'Ranges:' header"
173 Makes httpd emit "Accept-Ranges: bytes" header and understand
174 "Range: bytes=NNN-[MMM]" header. Allows for resuming interrupted
175 downloads, seeking in multimedia players etc.
177 config FEATURE_HTTPD_USE_SENDFILE
178 bool "Use sendfile system call"
182 When enabled, httpd will use the kernel sendfile() function
183 instead of read/write loop.
185 config FEATURE_HTTPD_SETUID
186 bool "Enable -u <user> option"
190 This option allows the server to run as a specific user
191 rather than defaulting to the user that starts the server.
192 Use of this option requires special privileges to change to a
195 config FEATURE_HTTPD_BASIC_AUTH
196 bool "Enable Basic http Authentication"
200 Utilizes password settings from /etc/httpd.conf for basic
201 authentication on a per url basis.
203 config FEATURE_HTTPD_AUTH_MD5
204 bool "Support MD5 crypted passwords for http Authentication"
206 depends on FEATURE_HTTPD_BASIC_AUTH
208 Enables basic per URL authentication from /etc/httpd.conf
211 config FEATURE_HTTPD_CGI
212 bool "Support Common Gateway Interface (CGI)"
216 This option allows scripts and executables to be invoked
217 when specific URLs are requested.
219 config FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
220 bool "Support for running scripts through an interpreter"
222 depends on FEATURE_HTTPD_CGI
224 This option enables support for running scripts through an
225 interpreter. Turn this on if you want PHP scripts to work
226 properly. You need to supply an additional line in your httpd
228 *.php:/path/to/your/php
230 config FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
231 bool "Set REMOTE_PORT environment variable for CGI"
233 depends on FEATURE_HTTPD_CGI
235 Use of this option can assist scripts in generating
236 references that contain a unique port number.
238 config FEATURE_HTTPD_ENCODE_URL_STR
239 bool "Enable -e option (useful for CGIs written as shell scripts)"
243 This option allows html encoding of arbitrary strings for display
244 by the browser. Output goes to stdout.
245 For example, httpd -e "<Hello World>" produces
246 "<Hello World>".
248 config FEATURE_HTTPD_ERROR_PAGES
249 bool "Support for custom error pages"
253 This option allows you to define custom error pages in
254 the configuration file instead of the default HTTP status
255 error pages. For instance, if you add the line:
257 in the config file, the server will respond the specified
258 '/path/e404.html' file instead of the terse '404 NOT FOUND'
261 config FEATURE_HTTPD_PROXY
262 bool "Support for reverse proxy"
266 This option allows you to define URLs that will be forwarded
267 to another HTTP server. To setup add the following line to the
269 P:/url/:http://hostname[:port]/new/path/
270 Then a request to /url/myfile will be forwarded to
271 http://hostname[:port]/new/path/myfile.
273 config FEATURE_HTTPD_GZIP
274 bool "Support for GZIP content encoding"
278 Makes httpd send files using GZIP content encoding if the
279 client supports it and a pre-compressed <file>.gz exists.
284 select PLATFORM_LINUX
286 Ifconfig is used to configure the kernel-resident network interfaces.
288 config FEATURE_IFCONFIG_STATUS
289 bool "Enable status reporting output (+7k)"
293 If ifconfig is called with no arguments it will display the status
294 of the currently active interfaces.
296 config FEATURE_IFCONFIG_SLIP
297 bool "Enable slip-specific options \"keepalive\" and \"outfill\""
301 Allow "keepalive" and "outfill" support for SLIP. If you're not
302 planning on using serial lines, leave this unchecked.
304 config FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
305 bool "Enable options \"mem_start\", \"io_addr\", and \"irq\""
309 Allow the start address for shared memory, start address for I/O,
310 and/or the interrupt line used by the specified device.
312 config FEATURE_IFCONFIG_HW
313 bool "Enable option \"hw\" (ether only)"
317 Set the hardware address of this interface, if the device driver
318 supports this operation. Currently, we only support the 'ether'
321 config FEATURE_IFCONFIG_BROADCAST_PLUS
322 bool "Set the broadcast automatically"
326 Setting this will make ifconfig attempt to find the broadcast
327 automatically if the value '+' is used.
332 select PLATFORM_LINUX
334 Userspace application to bind several interfaces
335 to a logical interface (use with kernel bonding driver).
340 select PLATFORM_LINUX
342 Network interface plug detection daemon.
348 Activate or deactivate the specified interfaces. This applet makes
349 use of either "ifconfig" and "route" or the "ip" command to actually
350 configure network interfaces. Therefore, you will probably also want
351 to enable either IFCONFIG and ROUTE, or enable
352 FEATURE_IFUPDOWN_IP and the various IP options. Of
353 course you could use non-busybox versions of these programs, so
354 against my better judgement (since this will surely result in plenty
355 of support questions on the mailing list), I do not force you to
356 enable these additional options. It is up to you to supply either
357 "ifconfig", "route" and "run-parts" or the "ip" command, either
358 via busybox or via standalone utilities.
360 config IFUPDOWN_IFSTATE_PATH
361 string "Absolute path to ifstate file"
362 default "/var/run/ifstate"
365 ifupdown keeps state information in a file called ifstate.
366 Typically it is located in /var/run/ifstate, however
367 some distributions tend to put it in other places
368 (debian, for example, uses /etc/network/run/ifstate).
369 This config option defines location of ifstate.
371 config FEATURE_IFUPDOWN_IP
376 Use the iproute "ip" command to implement "ifup" and "ifdown", rather
377 than the default of using the older 'ifconfig' and 'route' utilities.
379 config FEATURE_IFUPDOWN_IP_BUILTIN
380 bool "Use busybox ip applet"
382 depends on FEATURE_IFUPDOWN_IP
383 select PLATFORM_LINUX
385 select FEATURE_IP_ADDRESS
386 select FEATURE_IP_LINK
387 select FEATURE_IP_ROUTE
389 Use the busybox iproute "ip" applet to implement "ifupdown".
391 If left disabled, you must install the full-blown iproute2
392 utility or the "ifup" and "ifdown" applets will not work.
394 config FEATURE_IFUPDOWN_IFCONFIG_BUILTIN
395 bool "Use busybox ifconfig and route applets"
397 depends on IFUPDOWN && !FEATURE_IFUPDOWN_IP
401 Use the busybox iproute "ifconfig" and "route" applets to
402 implement the "ifup" and "ifdown" utilities.
404 If left disabled, you must install the full-blown ifconfig
405 and route utilities, or the "ifup" and "ifdown" applets will not
408 config FEATURE_IFUPDOWN_IPV4
409 bool "Support for IPv4"
413 If you want ifup/ifdown to talk IPv4, leave this on.
415 config FEATURE_IFUPDOWN_IPV6
416 bool "Support for IPv6"
418 depends on IFUPDOWN && FEATURE_IPV6
420 If you need support for IPv6, turn this option on.
423 ###config FEATURE_IFUPDOWN_IPX
424 ### bool "Support for IPX"
426 ### depends on IFUPDOWN
428 ### If this option is selected you can use busybox to work with IPX
431 config FEATURE_IFUPDOWN_MAPPING
432 bool "Enable mapping support"
436 This enables support for the "mapping" stanza, unless you have
437 a weird network setup you don't need it.
439 config FEATURE_IFUPDOWN_EXTERNAL_DHCP
440 bool "Support for external dhcp clients"
444 This enables support for the external dhcp clients. Clients are
445 tried in the following order: dhcpcd, dhclient, pump and udhcpc.
446 Otherwise, if udhcpc applet is enabled, it is used.
447 Otherwise, ifup/ifdown will have no support for DHCP.
452 select FEATURE_SYSLOG
454 Internet superserver daemon
456 config FEATURE_INETD_SUPPORT_BUILTIN_ECHO
457 bool "Support echo service"
461 Echo received data internal inetd service
463 config FEATURE_INETD_SUPPORT_BUILTIN_DISCARD
464 bool "Support discard service"
468 Internet /dev/null internal inetd service
470 config FEATURE_INETD_SUPPORT_BUILTIN_TIME
471 bool "Support time service"
475 Return 32 bit time since 1900 internal inetd service
477 config FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME
478 bool "Support daytime service"
482 Return human-readable time internal inetd service
484 config FEATURE_INETD_SUPPORT_BUILTIN_CHARGEN
485 bool "Support chargen service"
489 Familiar character generator internal inetd service
491 config FEATURE_INETD_RPC
492 bool "Support RPC services"
495 select FEATURE_HAVE_RPC
497 Support Sun-RPC based services
502 select PLATFORM_LINUX
504 The "ip" applet is a TCP/IP interface configuration and routing
505 utility. You generally don't need "ip" to use busybox with
508 config FEATURE_IP_ADDRESS
513 Address manipulation support for the "ip" applet.
515 config FEATURE_IP_LINK
520 Configure network devices with "ip".
522 config FEATURE_IP_ROUTE
527 Add support for routing table management to "ip".
529 config FEATURE_IP_TUNNEL
534 Add support for tunneling commands to "ip".
536 config FEATURE_IP_RULE
541 Add support for rule commands to "ip".
543 config FEATURE_IP_SHORT_FORMS
544 bool "Support short forms of ip commands"
548 Also support short-form of ip <OBJECT> commands:
552 ip tunnel -> iptunnel
555 Say N unless you desparately need the short form of the ip
558 config FEATURE_IP_RARE_PROTOCOLS
559 bool "Support displaying rarely used link types"
563 If you are not going to use links of type "frad", "econet",
564 "bif" etc, you probably don't need to enable this.
565 Ethernet, wireless, infrared, ppp/slip, ip tunnelling
566 link types are supported without this option selected.
571 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ADDRESS
576 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_LINK
581 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ROUTE
586 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_TUNNEL
591 depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_RULE
597 ipcalc takes an IP address and netmask and calculates the
598 resulting broadcast, network, and host range.
600 config FEATURE_IPCALC_FANCY
601 bool "Fancy IPCALC, more options, adds 1 kbyte"
605 Adds the options hostname, prefix and silent to the output of
608 config FEATURE_IPCALC_LONG_OPTIONS
609 bool "Enable long options"
611 depends on IPCALC && LONG_OPTS
613 Support long options for the ipcalc applet.
618 select PLATFORM_LINUX
620 netstat prints information about the Linux networking subsystem.
622 config FEATURE_NETSTAT_WIDE
623 bool "Enable wide netstat output"
627 Add support for wide columns. Useful when displaying IPv6 addresses
630 config FEATURE_NETSTAT_PRG
631 bool "Enable PID/Program name output"
635 Add support for -p flag to print out PID and program name.
642 nslookup is a tool to query Internet name servers.
647 select PLATFORM_LINUX
649 The NTP client/server daemon.
651 config FEATURE_NTPD_SERVER
652 bool "Make ntpd usable as a NTP server"
656 Make ntpd usable as a NTP server. If you disable this option
657 ntpd will be usable only as a NTP client.
663 Simple network port scanner.
668 select PLATFORM_LINUX
670 Route displays or manipulates the kernel's IP routing tables.
675 select PLATFORM_LINUX
677 slattach is a small utility to attach network interfaces to serial
684 # show / manipulate traffic control settings
686 #config FEATURE_TC_INGRESS
694 tcpsvd listens on a TCP port and runs a program for each new
701 Telnet is an interface to the TELNET protocol, but is also commonly
702 used to test other simple protocols.
704 config FEATURE_TELNET_TTYPE
705 bool "Pass TERM type to remote host"
709 Setting this option will forward the TERM environment variable to the
710 remote host you are connecting to. This is useful to make sure that
711 things like ANSI colors and other control sequences behave.
713 config FEATURE_TELNET_AUTOLOGIN
714 bool "Pass USER type to remote host"
718 Setting this option will forward the USER environment variable to the
719 remote host you are connecting to. This is useful when you need to
720 log into a machine without telling the username (autologin). This
721 option enables `-a' and `-l USER' arguments.
726 select FEATURE_SYSLOG
728 A daemon for the TELNET protocol, allowing you to log onto the host
729 running the daemon. Please keep in mind that the TELNET protocol
730 sends passwords in plain text. If you can't afford the space for an
731 SSH daemon and you trust your network, you may say 'y' here. As a
732 more secure alternative, you should seriously consider installing the
733 very small Dropbear SSH daemon instead:
734 http://matt.ucc.asn.au/dropbear/dropbear.html
736 Note that for busybox telnetd to work you need several things:
737 First of all, your kernel needs:
741 Next, you need a /dev/pts directory on your root filesystem:
744 drwxr-xr-x 2 root root 0 Sep 23 13:21 /dev/pts/
746 Next you need the pseudo terminal master multiplexer /dev/ptmx:
749 crw-rw-rw- 1 root tty 5, 2 Sep 23 13:55 /dev/ptmx
751 Any /dev/ttyp[0-9]* files you may have can be removed.
752 Next, you need to mount the devpts filesystem on /dev/pts using:
754 mount -t devpts devpts /dev/pts
756 You need to be sure that busybox has LOGIN and
757 FEATURE_SUID enabled. And finally, you should make
758 certain that Busybox has been installed setuid root:
760 chown root.root /bin/busybox
761 chmod 4755 /bin/busybox
763 with all that done, telnetd _should_ work....
766 config FEATURE_TELNETD_STANDALONE
767 bool "Support standalone telnetd (not inetd only)"
771 Selecting this will make telnetd able to run standalone.
773 config FEATURE_TELNETD_INETD_WAIT
774 bool "Support -w SEC option (inetd wait mode)"
776 depends on FEATURE_TELNETD_STANDALONE
778 This option allows you to run telnetd in "inet wait" mode.
779 Example inetd.conf line (note "wait", not usual "nowait"):
781 telnet stream tcp wait root /bin/telnetd telnetd -w10
783 In this example, inetd passes _listening_ socket_ as fd 0
784 to telnetd when connection appears.
785 telnetd will wait for connections until all existing
786 connections are closed, and no new connections
787 appear during 10 seconds. Then it exits, and inetd continues
788 to listen for new connections.
790 This option is rarely used. "tcp nowait" is much more usual
791 way of running tcp services, including telnetd.
792 You most probably want to say N here.
798 This enables the Trivial File Transfer Protocol client program. TFTP
799 is usually used for simple, small transfers such as a root image
800 for a network-enabled bootloader.
806 This enables the Trivial File Transfer Protocol server program.
807 It expects that stdin is a datagram socket and a packet
808 is already pending on it. It will exit after one transfer.
809 In other words: it should be run from inetd in nowait mode,
810 or from udpsvd. Example: "udpsvd -E 0 69 tftpd DIR"
812 comment "Common options for tftp/tftpd"
813 depends on TFTP || TFTPD
815 config FEATURE_TFTP_GET
816 bool "Enable 'tftp get' and/or tftpd upload code"
818 depends on TFTP || TFTPD
820 Add support for the GET command within the TFTP client. This allows
821 a client to retrieve a file from a TFTP server.
822 Also enable upload support in tftpd, if tftpd is selected.
824 Note: this option does _not_ make tftpd capable of download
825 (the usual operation people need from it)!
827 config FEATURE_TFTP_PUT
828 bool "Enable 'tftp put' and/or tftpd download code"
830 depends on TFTP || TFTPD
832 Add support for the PUT command within the TFTP client. This allows
833 a client to transfer a file to a TFTP server.
834 Also enable download support in tftpd, if tftpd is selected.
836 config FEATURE_TFTP_BLOCKSIZE
837 bool "Enable 'blksize' and 'tsize' protocol options"
839 depends on TFTP || TFTPD
841 Allow tftp to specify block size, and tftpd to understand
842 "blksize" and "tsize" options.
844 config FEATURE_TFTP_PROGRESS_BAR
845 bool "Enable tftp progress meter"
847 depends on TFTP && FEATURE_TFTP_BLOCKSIZE
854 depends on TFTP || TFTPD
856 Make tftp[d] print debugging messages on stderr.
857 This is useful if you are diagnosing a bug in tftp[d].
862 select PLATFORM_LINUX
864 Utility to trace the route of IP packets.
869 depends on FEATURE_IPV6 && TRACEROUTE
871 Utility to trace the route of IPv6 packets.
873 config FEATURE_TRACEROUTE_VERBOSE
874 bool "Enable verbose output"
876 depends on TRACEROUTE
878 Add some verbosity to traceroute. This includes among other things
879 hostnames and ICMP response types.
881 config FEATURE_TRACEROUTE_SOURCE_ROUTE
882 bool "Enable loose source route"
884 depends on TRACEROUTE
886 Add option to specify a loose source route gateway
889 config FEATURE_TRACEROUTE_USE_ICMP
890 bool "Use ICMP instead of UDP"
892 depends on TRACEROUTE
894 Add option -I to use ICMP ECHO instead of UDP datagrams.
899 select PLATFORM_LINUX
901 tunctl creates or deletes tun devices.
903 config FEATURE_TUNCTL_UG
904 bool "Support owner:group assignment"
908 Allow to specify owner and group of newly created interface.
909 340 bytes of pure bloat. Say no here.
911 source networking/udhcp/Config.in
913 config IFUPDOWN_UDHCPC_CMD_OPTIONS
914 string "ifup udhcpc command line options"
916 depends on IFUPDOWN && UDHCPC
918 Command line options to pass to udhcpc from ifup.
919 Intended to alter options not available in /etc/network/interfaces.
920 (IE: --syslog --background etc...)
926 udpsvd listens on an UDP port and runs a program for each new
932 select PLATFORM_LINUX
934 Creates, removes, and configures VLAN interfaces
940 wget is a utility for non-interactive download of files from HTTP,
941 HTTPS, and FTP servers.
943 config FEATURE_WGET_STATUSBAR
944 bool "Enable a nifty process meter (+2k)"
948 Enable the transfer progress bar for wget transfers.
950 config FEATURE_WGET_AUTHENTICATION
951 bool "Enable HTTP authentication"
955 Support authenticated HTTP transfers.
957 config FEATURE_WGET_LONG_OPTIONS
958 bool "Enable long options"
960 depends on WGET && LONG_OPTS
962 Support long options for the wget applet.
964 config FEATURE_WGET_TIMEOUT
965 bool "Enable read timeout option -T SEC"
969 Supports network read timeout for wget, so that wget will give
970 up and timeout when reading network data, through the -T command
971 line option. Currently only network data read timeout is
972 supported (i.e., timeout is not applied to the DNS nor TCP
973 connection initialization). When FEATURE_WGET_LONG_OPTIONS is
974 also enabled, the --timeout option will work in addition to -T.
979 select PLATFORM_LINUX
980 select FEATURE_SYSLOG
982 ZCIP provides ZeroConf IPv4 address selection, according to RFC 3927.
983 It's a daemon that allocates and defends a dynamically assigned
984 address on the 169.254/16 network, requiring no system administrator.
986 See http://www.zeroconf.org for further details, and "zcip.script"
987 in the busybox examples.