busybox/networking/ip.c

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/* vi: set sw=4 ts=4: */
/*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* Changes:
* Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
* Bernhard Reutner-Fischer rewrote to use index_in_substr_array
*/
//config:config IP
//config: bool "ip"
//config: default y
//config: select PLATFORM_LINUX
//config: help
//config: The "ip" applet is a TCP/IP interface configuration and routing
//config: utility. You generally don't need "ip" to use busybox with
//config: TCP/IP.
//config:
//config:config FEATURE_IP_ADDRESS
//config: bool "ip address"
//config: default y
//config: depends on IP
//config: help
//config: Address manipulation support for the "ip" applet.
//config:
//config:config FEATURE_IP_LINK
//config: bool "ip link"
//config: default y
//config: depends on IP
//config: help
//config: Configure network devices with "ip".
//config:
//config:config FEATURE_IP_ROUTE
//config: bool "ip route"
//config: default y
//config: depends on IP
//config: help
//config: Add support for routing table management to "ip".
//config:
//config:config FEATURE_IP_ROUTE_DIR
//config: string "ip route configuration directory"
//config: default "/etc/iproute2"
//config: depends on FEATURE_IP_ROUTE
//config: help
//config: Location of the "ip" applet routing configuration.
//config:
//config:config FEATURE_IP_TUNNEL
//config: bool "ip tunnel"
//config: default y
//config: depends on IP
//config: help
//config: Add support for tunneling commands to "ip".
//config:
//config:config FEATURE_IP_RULE
//config: bool "ip rule"
//config: default y
//config: depends on IP
//config: help
//config: Add support for rule commands to "ip".
//config:
//config:config FEATURE_IP_NEIGH
//config: bool "ip neighbor"
//config: default y
//config: depends on IP
//config: help
//config: Add support for neighbor commands to "ip".
//config:
//config:config FEATURE_IP_SHORT_FORMS
//config: bool "Support short forms of ip commands"
//config: default y
//config: depends on IP
//config: help
//config: Also support short-form of ip <OBJECT> commands:
//config: ip addr -> ipaddr
//config: ip link -> iplink
//config: ip route -> iproute
//config: ip tunnel -> iptunnel
//config: ip rule -> iprule
//config: ip neigh -> ipneigh
//config:
//config: Say N unless you desparately need the short form of the ip
//config: object commands.
//config:
//config:config FEATURE_IP_RARE_PROTOCOLS
//config: bool "Support displaying rarely used link types"
//config: default n
//config: depends on IP
//config: help
//config: If you are not going to use links of type "frad", "econet",
//config: "bif" etc, you probably don't need to enable this.
//config: Ethernet, wireless, infrared, ppp/slip, ip tunnelling
//config: link types are supported without this option selected.
//config:
//config:config IPADDR
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ADDRESS
//config:
//config:config IPLINK
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_LINK
//config:
//config:config IPROUTE
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_ROUTE
//config:
//config:config IPTUNNEL
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_TUNNEL
//config:
//config:config IPRULE
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_RULE
//config:
//config:config IPNEIGH
//config: bool
//config: default y
//config: depends on FEATURE_IP_SHORT_FORMS && FEATURE_IP_NEIGH
//applet:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK || ENABLE_FEATURE_IP_TUNNEL || ENABLE_FEATURE_IP_RULE || ENABLE_FEATURE_IP_NEIGH
//applet:IF_IP(APPLET(ip, BB_DIR_SBIN, BB_SUID_DROP))
//applet:#endif
//applet:IF_IPADDR(APPLET(ipaddr, BB_DIR_SBIN, BB_SUID_DROP))
//applet:IF_IPLINK(APPLET(iplink, BB_DIR_SBIN, BB_SUID_DROP))
//applet:IF_IPROUTE(APPLET(iproute, BB_DIR_SBIN, BB_SUID_DROP))
//applet:IF_IPRULE(APPLET(iprule, BB_DIR_SBIN, BB_SUID_DROP))
//applet:IF_IPTUNNEL(APPLET(iptunnel, BB_DIR_SBIN, BB_SUID_DROP))
//applet:IF_IPNEIGH(APPLET(ipneigh, BB_DIR_SBIN, BB_SUID_DROP))
//kbuild:lib-$(CONFIG_IP) += ip.o
/* would need to make the " | " optional depending on more than one selected: */
//usage:#define ip_trivial_usage
//usage: "[OPTIONS] {"
//usage: IF_FEATURE_IP_ADDRESS("address | ")
//usage: IF_FEATURE_IP_ROUTE("route | ")
//usage: IF_FEATURE_IP_LINK("link | ")
//usage: IF_FEATURE_IP_TUNNEL("tunnel | ")
//usage: IF_FEATURE_IP_NEIGH("neigh | ")
//usage: IF_FEATURE_IP_RULE("rule")
//usage: "} {COMMAND}"
//usage:#define ip_full_usage "\n\n"
//usage: "ip [OPTIONS] OBJECT {COMMAND}\n"
//usage: "where OBJECT := {"
//usage: IF_FEATURE_IP_ADDRESS("address | ")
//usage: IF_FEATURE_IP_ROUTE("route | ")
//usage: IF_FEATURE_IP_LINK("link | ")
//usage: IF_FEATURE_IP_TUNNEL("tunnel | ")
//usage: IF_FEATURE_IP_NEIGH("neigh | ")
//usage: IF_FEATURE_IP_RULE("rule")
//usage: "}\n"
//usage: "OPTIONS := { -f[amily] { inet | inet6 | link } | -o[neline] }"
//usage:
//usage:#define ipaddr_trivial_usage
//usage: "{ {add|del} IFADDR dev STRING | {show|flush}\n"
//usage: " [dev STRING] [to PREFIX] }"
//usage:#define ipaddr_full_usage "\n\n"
//usage: "ipaddr {add|change|replace|delete} IFADDR dev STRING\n"
//usage: "ipaddr {show|flush} [dev STRING] [scope SCOPE-ID]\n"
//usage: " [to PREFIX] [label PATTERN]\n"
//usage: " IFADDR := PREFIX | ADDR peer PREFIX\n"
//usage: " [broadcast ADDR] [anycast ADDR]\n"
//usage: " [label STRING] [scope SCOPE-ID]\n"
//usage: " SCOPE-ID := [host | link | global | NUMBER]"
//usage:
//usage:#define iplink_trivial_usage
//usage: "{ set DEVICE { up | down | arp { on | off } | show [DEVICE] }"
//usage:#define iplink_full_usage "\n\n"
//usage: "iplink set DEVICE { up | down | arp | multicast { on | off } |\n"
//usage: " dynamic { on | off } |\n"
//usage: " mtu MTU }\n"
//usage: "iplink show [DEVICE]"
//usage:
//usage:#define iproute_trivial_usage
//usage: "{ list | flush | add | del | change | append |\n"
//usage: " replace | test } ROUTE"
//usage:#define iproute_full_usage "\n\n"
//usage: "iproute { list | flush } SELECTOR\n"
//usage: "iproute get ADDRESS [from ADDRESS iif STRING]\n"
//usage: " [oif STRING] [tos TOS]\n"
//usage: "iproute { add | del | change | append | replace | test } ROUTE\n"
//usage: " SELECTOR := [root PREFIX] [match PREFIX] [proto RTPROTO]\n"
//usage: " ROUTE := [TYPE] PREFIX [tos TOS] [proto RTPROTO] [metric METRIC]"
//usage:
//usage:#define iprule_trivial_usage
//usage: "{[list | add | del] RULE}"
//usage:#define iprule_full_usage "\n\n"
//usage: "iprule [list | add | del] SELECTOR ACTION\n"
//usage: " SELECTOR := [from PREFIX] [to PREFIX] [tos TOS] [fwmark FWMARK]\n"
//usage: " [dev STRING] [pref NUMBER]\n"
//usage: " ACTION := [table TABLE_ID] [nat ADDRESS]\n"
//usage: " [prohibit | reject | unreachable]\n"
//usage: " [realms [SRCREALM/]DSTREALM]\n"
//usage: " TABLE_ID := [local | main | default | NUMBER]"
//usage:
//usage:#define iptunnel_trivial_usage
//usage: "{ add | change | del | show } [NAME]\n"
//usage: " [mode { ipip | gre | sit }]\n"
//usage: " [remote ADDR] [local ADDR] [ttl TTL]"
//usage:#define iptunnel_full_usage "\n\n"
//usage: "iptunnel { add | change | del | show } [NAME]\n"
//usage: " [mode { ipip | gre | sit }] [remote ADDR] [local ADDR]\n"
//usage: " [[i|o]seq] [[i|o]key KEY] [[i|o]csum]\n"
//usage: " [ttl TTL] [tos TOS] [[no]pmtudisc] [dev PHYS_DEV]"
//usage:
//usage:#define ipneigh_trivial_usage
//usage: "{ show | flush} [ to PREFIX ] [ dev DEV ] [ nud STATE ]"
//usage:#define ipneigh_full_usage "\n\n"
//usage: "ipneigh { show | flush} [ to PREFIX ] [ dev DEV ] [ nud STATE ]"
#include "libbb.h"
#include "libiproute/utils.h"
#include "libiproute/ip_common.h"
#if ENABLE_FEATURE_IP_ADDRESS \
|| ENABLE_FEATURE_IP_ROUTE \
|| ENABLE_FEATURE_IP_LINK \
|| ENABLE_FEATURE_IP_TUNNEL \
|| ENABLE_FEATURE_IP_RULE \
|| ENABLE_FEATURE_IP_NEIGH
static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM)
{
bb_show_usage();
}
typedef int FAST_FUNC (*ip_func_ptr_t)(char**);
static int ip_do(ip_func_ptr_t ip_func, char **argv)
{
argv = ip_parse_common_args(argv + 1);
return ip_func(argv);
}
#if ENABLE_FEATURE_IP_ADDRESS
int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int ipaddr_main(int argc UNUSED_PARAM, char **argv)
{
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return ip_do(do_ipaddr, argv);
}
#endif
#if ENABLE_FEATURE_IP_LINK
int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int iplink_main(int argc UNUSED_PARAM, char **argv)
{
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return ip_do(do_iplink, argv);
}
#endif
#if ENABLE_FEATURE_IP_ROUTE
int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int iproute_main(int argc UNUSED_PARAM, char **argv)
{
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return ip_do(do_iproute, argv);
}
#endif
#if ENABLE_FEATURE_IP_RULE
int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int iprule_main(int argc UNUSED_PARAM, char **argv)
{
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return ip_do(do_iprule, argv);
}
#endif
#if ENABLE_FEATURE_IP_TUNNEL
int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int iptunnel_main(int argc UNUSED_PARAM, char **argv)
{
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return ip_do(do_iptunnel, argv);
}
#endif
#if ENABLE_FEATURE_IP_NEIGH
int ipneigh_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ipneigh_main(int argc UNUSED_PARAM, char **argv)
{
return ip_do(do_ipneigh, argv);
}
#endif
int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int ip_main(int argc UNUSED_PARAM, char **argv)
{
static const char keywords[] ALIGN1 =
IF_FEATURE_IP_ADDRESS("address\0")
IF_FEATURE_IP_ROUTE("route\0")
IF_FEATURE_IP_ROUTE("r\0")
IF_FEATURE_IP_LINK("link\0")
IF_FEATURE_IP_TUNNEL("tunnel\0")
IF_FEATURE_IP_TUNNEL("tunl\0")
IF_FEATURE_IP_RULE("rule\0")
IF_FEATURE_IP_NEIGH("neigh\0")
;
static const ip_func_ptr_t ip_func_ptrs[] = {
ip_print_help,
IF_FEATURE_IP_ADDRESS(do_ipaddr,)
IF_FEATURE_IP_ROUTE(do_iproute,)
IF_FEATURE_IP_ROUTE(do_iproute,)
IF_FEATURE_IP_LINK(do_iplink,)
IF_FEATURE_IP_TUNNEL(do_iptunnel,)
IF_FEATURE_IP_TUNNEL(do_iptunnel,)
IF_FEATURE_IP_RULE(do_iprule,)
IF_FEATURE_IP_NEIGH(do_ipneigh,)
};
ip_func_ptr_t ip_func;
int key;
argv = ip_parse_common_args(argv + 1);
key = *argv ? index_in_substrings(keywords, *argv++) : -1;
ip_func = ip_func_ptrs[key + 1];
return ip_func(argv);
}
#endif /* any of ENABLE_FEATURE_IP_xxx is 1 */