diff options
Diffstat (limited to 'networking/ifupdown.c')
| -rw-r--r-- | networking/ifupdown.c | 135 |
1 files changed, 127 insertions, 8 deletions
diff --git a/networking/ifupdown.c b/networking/ifupdown.c index 1d0fc53..7ac517a 100644 --- a/networking/ifupdown.c +++ b/networking/ifupdown.c @@ -1,6 +1,6 @@ /* vi: set sw=4 ts=4: */ /* - * ifupdown for busybox + * ifup/ifdown for busybox * Copyright (c) 2002 Glenn McGrath * Copyright (c) 2003-2004 Erik Andersen <andersen@codepoet.org> * @@ -17,10 +17,127 @@ * Licensed under GPLv2 or later, see file LICENSE in this source tree. */ +//config:config IFUP +//config: bool "ifup" +//config: default y +//config: help +//config: Activate the specified interfaces. This applet makes use +//config: of either "ifconfig" and "route" or the "ip" command to actually +//config: configure network interfaces. Therefore, you will probably also want +//config: to enable either IFCONFIG and ROUTE, or enable +//config: FEATURE_IFUPDOWN_IP and the various IP options. Of +//config: course you could use non-busybox versions of these programs, so +//config: against my better judgement (since this will surely result in plenty +//config: of support questions on the mailing list), I do not force you to +//config: enable these additional options. It is up to you to supply either +//config: "ifconfig", "route" and "run-parts" or the "ip" command, either +//config: via busybox or via standalone utilities. +//config: +//config:config IFDOWN +//config: bool "ifdown" +//config: default y +//config: help +//config: Deactivate the specified interfaces. +//config: +//config:config IFUPDOWN_IFSTATE_PATH +//config: string "Absolute path to ifstate file" +//config: default "/var/run/ifstate" +//config: depends on IFUP || IFDOWN +//config: help +//config: ifupdown keeps state information in a file called ifstate. +//config: Typically it is located in /var/run/ifstate, however +//config: some distributions tend to put it in other places +//config: (debian, for example, uses /etc/network/run/ifstate). +//config: This config option defines location of ifstate. +//config: +//config:config FEATURE_IFUPDOWN_IP +//config: bool "Use ip applet" +//config: default y +//config: depends on IFUP || IFDOWN +//config: help +//config: Use the iproute "ip" command to implement "ifup" and "ifdown", rather +//config: than the default of using the older 'ifconfig' and 'route' utilities. +//config: +//config:config FEATURE_IFUPDOWN_IP_BUILTIN +//config: bool "Use busybox ip applet" +//config: default y +//config: depends on FEATURE_IFUPDOWN_IP +//config: select PLATFORM_LINUX +//config: select IP +//config: select FEATURE_IP_ADDRESS +//config: select FEATURE_IP_LINK +//config: select FEATURE_IP_ROUTE +//config: help +//config: Use the busybox iproute "ip" applet to implement "ifupdown". +//config: +//config: If left disabled, you must install the full-blown iproute2 +//config: utility or the "ifup" and "ifdown" applets will not work. +//config: +//config:config FEATURE_IFUPDOWN_IFCONFIG_BUILTIN +//config: bool "Use busybox ifconfig and route applets" +//config: default n +//config: depends on (IFUP || IFDOWN) && !FEATURE_IFUPDOWN_IP +//config: select IFCONFIG +//config: select ROUTE +//config: help +//config: Use the busybox iproute "ifconfig" and "route" applets to +//config: implement the "ifup" and "ifdown" utilities. +//config: +//config: If left disabled, you must install the full-blown ifconfig +//config: and route utilities, or the "ifup" and "ifdown" applets will not +//config: work. +//config: +//config:config FEATURE_IFUPDOWN_IPV4 +//config: bool "Support for IPv4" +//config: default y +//config: depends on IFUP || IFDOWN +//config: help +//config: If you want ifup/ifdown to talk IPv4, leave this on. +//config: +//config:config FEATURE_IFUPDOWN_IPV6 +//config: bool "Support for IPv6" +//config: default y +//config: depends on (IFUP || IFDOWN) && FEATURE_IPV6 +//config: help +//config: If you need support for IPv6, turn this option on. +//config: +//UNUSED: +////////:config FEATURE_IFUPDOWN_IPX +////////: bool "Support for IPX" +////////: default y +////////: depends on IFUP || IFDOWN +////////: help +////////: If this option is selected you can use busybox to work with IPX +////////: networks. +//config: +//config:config FEATURE_IFUPDOWN_MAPPING +//config: bool "Enable mapping support" +//config: default y +//config: depends on IFUP || IFDOWN +//config: help +//config: This enables support for the "mapping" stanza, unless you have +//config: a weird network setup you don't need it. +//config: +//config:config FEATURE_IFUPDOWN_EXTERNAL_DHCP +//config: bool "Support for external dhcp clients" +//config: default n +//config: depends on IFUP || IFDOWN +//config: help +//config: This enables support for the external dhcp clients. Clients are +//config: tried in the following order: dhcpcd, dhclient, pump and udhcpc. +//config: Otherwise, if udhcpc applet is enabled, it is used. +//config: Otherwise, ifup/ifdown will have no support for DHCP. + +//applet:IF_IFUP(APPLET_ODDNAME(ifup, ifupdown, BB_DIR_SBIN, BB_SUID_DROP, ifup)) +//applet:IF_IFDOWN(APPLET_ODDNAME(ifdown, ifupdown, BB_DIR_SBIN, BB_SUID_DROP, ifdown)) + +//kbuild:lib-$(CONFIG_IFUP) += ifupdown.o +//kbuild:lib-$(CONFIG_IFDOWN) += ifupdown.o + //usage:#define ifup_trivial_usage //usage: "[-an"IF_FEATURE_IFUPDOWN_MAPPING("m")"vf] [-i FILE] IFACE..." //usage:#define ifup_full_usage "\n\n" -//usage: " -a De/configure all interfaces automatically" +//usage: " -a Configure all interfaces" //usage: "\n -i FILE Use FILE instead of /etc/network/interfaces" //usage: "\n -n Print out what would happen, but don't do it" //usage: IF_FEATURE_IFUPDOWN_MAPPING( @@ -28,12 +145,12 @@ //usage: "\n -m Don't run any mappings" //usage: ) //usage: "\n -v Print out what would happen before doing it" -//usage: "\n -f Force de/configuration" +//usage: "\n -f Force configuration" //usage: //usage:#define ifdown_trivial_usage //usage: "[-an"IF_FEATURE_IFUPDOWN_MAPPING("m")"vf] [-i FILE] IFACE..." //usage:#define ifdown_full_usage "\n\n" -//usage: " -a De/configure all interfaces automatically" +//usage: " -a Deconfigure all interfaces" //usage: "\n -i FILE Use FILE for interface definitions" //usage: "\n -n Print out what would happen, but don't do it" //usage: IF_FEATURE_IFUPDOWN_MAPPING( @@ -41,7 +158,7 @@ //usage: "\n -m Don't run any mappings" //usage: ) //usage: "\n -v Print out what would happen before doing it" -//usage: "\n -f Force de/configuration" +//usage: "\n -f Force deconfiguration" #include "libbb.h" #include "common_bufsiz.h" @@ -1248,7 +1365,6 @@ static FILE *open_new_state_file(void) return xfdopen_for_write(fd); } - int ifupdown_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int ifupdown_main(int argc UNUSED_PARAM, char **argv) { @@ -1263,10 +1379,13 @@ int ifupdown_main(int argc UNUSED_PARAM, char **argv) G.startup_PATH = getenv("PATH"); G.shell = xstrdup(get_shell_name()); - cmds = iface_down; - if (applet_name[2] == 'u') { + if (ENABLE_IFUP + && (!ENABLE_IFDOWN || applet_name[2] == 'u') + ) { /* ifup command */ cmds = iface_up; + } else { + cmds = iface_down; } getopt32(argv, OPTION_STR, &interfaces); |