1 /* vi: set sw=4 ts=4: */
2 /*
3 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
4 *
5 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
6 *
7 * Changes:
8 * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
9 * Bernhard Reutner-Fischer rewrote to use index_in_substr_array
10 */
11 //config:config IP
12 //config: bool "ip (35 kb)"
13 //config: default y
14 //config: help
15 //config: The "ip" applet is a TCP/IP interface configuration and routing
16 //config: utility.
17 //config: Short forms (enabled below) are busybox-specific extensions.
18 //config: The standard "ip" utility does not provide them. If you are
19 //config: trying to be portable, it's better to use "ip CMD" forms.
20 //config:
21 //config:config IPADDR
22 //config: bool "ipaddr (14 kb)"
23 //config: default y
24 //config: select FEATURE_IP_ADDRESS
25 //config: help
26 //config: Short form of "ip addr"
27 //config:
28 //config:config IPLINK
29 //config: bool "iplink (17 kb)"
30 //config: default y
31 //config: select FEATURE_IP_LINK
32 //config: help
33 //config: Short form of "ip link"
34 //config:
35 //config:config IPROUTE
36 //config: bool "iproute (15 kb)"
37 //config: default y
38 //config: select FEATURE_IP_ROUTE
39 //config: help
40 //config: Short form of "ip route"
41 //config:
42 //config:config IPTUNNEL
43 //config: bool "iptunnel (9.6 kb)"
44 //config: default y
45 //config: select FEATURE_IP_TUNNEL
46 //config: help
47 //config: Short form of "ip tunnel"
48 //config:
49 //config:config IPRULE
50 //config: bool "iprule (10 kb)"
51 //config: default y
52 //config: select FEATURE_IP_RULE
53 //config: help
54 //config: Short form of "ip rule"
55 //config:
56 //config:config IPNEIGH
57 //config: bool "ipneigh (8.3 kb)"
58 //config: default y
59 //config: select FEATURE_IP_NEIGH
60 //config: help
61 //config: Short form of "ip neigh"
62 //config:
63 //config:config FEATURE_IP_ADDRESS
64 //config: bool "ip address"
65 //config: default y
66 //config: depends on IP || IPADDR
67 //config: help
68 //config: Address manipulation support for the "ip" applet.
69 //config:
70 //config:config FEATURE_IP_LINK
71 //config: bool "ip link"
72 //config: default y
73 //config: depends on IP || IPLINK
74 //config: help
75 //config: Configure network devices with "ip".
76 //config:
77 //config:config FEATURE_IP_ROUTE
78 //config: bool "ip route"
79 //config: default y
80 //config: depends on IP || IPROUTE
81 //config: help
82 //config: Add support for routing table management to "ip".
83 //config:
84 //config:config FEATURE_IP_ROUTE_DIR
85 //config: string "ip route configuration directory"
86 //config: default "/etc/iproute2"
87 //config: depends on FEATURE_IP_ROUTE
88 //config: help
89 //config: Location of the "ip" applet routing configuration.
90 //config:
91 //config:config FEATURE_IP_TUNNEL
92 //config: bool "ip tunnel"
93 //config: default y
94 //config: depends on IP || IPTUNNEL
95 //config: help
96 //config: Add support for tunneling commands to "ip".
97 //config:
98 //config:config FEATURE_IP_RULE
99 //config: bool "ip rule"
100 //config: default y
101 //config: depends on IP || IPRULE
102 //config: help
103 //config: Add support for rule commands to "ip".
104 //config:
105 //config:config FEATURE_IP_NEIGH
106 //config: bool "ip neighbor"
107 //config: default y
108 //config: depends on IP || IPNEIGH
109 //config: help
110 //config: Add support for neighbor commands to "ip".
111 //config:
112 //config:config FEATURE_IP_RARE_PROTOCOLS
113 //config: bool "Support displaying rarely used link types"
114 //config: default n
115 //config: depends on IP || IPADDR || IPLINK || IPROUTE || IPTUNNEL || IPRULE || IPNEIGH
116 //config: help
117 //config: If you are not going to use links of type "frad", "econet",
118 //config: "bif" etc, you probably don't need to enable this.
119 //config: Ethernet, wireless, infrared, ppp/slip, ip tunnelling
120 //config: link types are supported without this option selected.
121
122 //applet:IF_IP( APPLET_NOEXEC(ip , ip , BB_DIR_SBIN, BB_SUID_DROP, ip ))
123 //applet:IF_IPADDR( APPLET_NOEXEC(ipaddr , ipaddr , BB_DIR_SBIN, BB_SUID_DROP, ipaddr ))
124 //applet:IF_IPLINK( APPLET_NOEXEC(iplink , iplink , BB_DIR_SBIN, BB_SUID_DROP, iplink ))
125 //applet:IF_IPROUTE( APPLET_NOEXEC(iproute , iproute , BB_DIR_SBIN, BB_SUID_DROP, iproute ))
126 //applet:IF_IPRULE( APPLET_NOEXEC(iprule , iprule , BB_DIR_SBIN, BB_SUID_DROP, iprule ))
127 //applet:IF_IPTUNNEL(APPLET_NOEXEC(iptunnel, iptunnel, BB_DIR_SBIN, BB_SUID_DROP, iptunnel))
128 //applet:IF_IPNEIGH( APPLET_NOEXEC(ipneigh , ipneigh , BB_DIR_SBIN, BB_SUID_DROP, ipneigh ))
129
130 //kbuild:lib-$(CONFIG_IP) += ip.o
131 //kbuild:lib-$(CONFIG_IPADDR) += ip.o
132 //kbuild:lib-$(CONFIG_IPLINK) += ip.o
133 //kbuild:lib-$(CONFIG_IPROUTE) += ip.o
134 //kbuild:lib-$(CONFIG_IPRULE) += ip.o
135 //kbuild:lib-$(CONFIG_IPTUNNEL) += ip.o
136 //kbuild:lib-$(CONFIG_IPNEIGH) += ip.o
137
138 //--------------123456789.123456789.123456789.123456789.123456789.123456789.123456789.123....79
139 //usage:#define ipaddr_trivial_usage
140 //usage: "add|del IFADDR dev IFACE | show|flush [dev IFACE] [to PREFIX]"
141 //usage:#define ipaddr_full_usage "\n\n"
142 //usage: "ipaddr add|change|replace|delete dev IFACE [CONFFLAG-LIST] IFADDR\n"
143 //usage: " IFADDR := PREFIX | ADDR peer PREFIX [broadcast ADDR|+|-]\n"
144 //usage: " [anycast ADDR] [label STRING] [scope SCOPE]\n"
145 //usage: " PREFIX := ADDR[/MASK]\n"
146 //usage: " SCOPE := [host|link|global|NUMBER]\n"
147 //usage: " CONFFLAG-LIST := [CONFFLAG-LIST] CONFFLAG\n"
148 //usage: " CONFFLAG := [noprefixroute]\n"
149 //usage: "ipaddr show|flush [dev IFACE] [scope SCOPE] [to PREFIX] [label PATTERN]"
150 //usage:
151 //--------------123456789.123456789.123456789.123456789.123456789.123456789.123456789.123....79
152 //usage:#define iplink_trivial_usage
153 //usage: /*Usage:iplink*/"set IFACE [up|down] [arp on|off] [multicast on|off]\n"
154 //usage: " [promisc on|off] [mtu NUM] [name NAME] [qlen NUM] [address MAC]\n"
155 //usage: " [master IFACE | nomaster] [netns PID]"
156 // * short help shows only "set" command, long help continues (with just one "\n")
157 // * and shows all other commands:
158 //usage:#define iplink_full_usage "\n"
159 //usage: "iplink add [link IFACE] IFACE [address MAC] type TYPE [ARGS]\n"
160 //usage: "iplink delete IFACE type TYPE [ARGS]\n"
161 //usage: " TYPE ARGS := vlan VLANARGS | vrf table NUM\n"
162 //usage: " VLANARGS := id VLANID [protocol 802.1q|802.1ad] [reorder_hdr on|off]\n"
163 //usage: " [gvrp on|off] [mvrp on|off] [loose_binding on|off]\n"
164 //usage: "iplink show [IFACE]"
165 //upstream man ip-link:
166 //=====================
167 //ip link add [link DEV] [ name ] NAME
168 // [ txqueuelen PACKETS ]
169 // [ address LLADDR ]
170 // [ broadcast LLADDR ]
171 // [ mtu MTU ] [index IDX ]
172 // [ numtxqueues QUEUE_COUNT ]
173 // [ numrxqueues QUEUE_COUNT ]
174 // type TYPE [ ARGS ]
175 // ip link delete { DEVICE | dev DEVICE | group DEVGROUP } type TYPE [ ARGS ]
176 // ip link set { DEVICE | dev DEVICE | group DEVGROUP } [ { up | down } ]
177 // [ arp { on | off } ]
178 // [ dynamic { on | off } ]
179 // [ multicast { on | off } ]
180 // [ allmulticast { on | off } ]
181 // [ promisc { on | off } ]
182 // [ trailers { on | off } ]
183 // [ txqueuelen PACKETS ]
184 // [ name NEWNAME ]
185 // [ address LLADDR ]
186 // [ broadcast LLADDR ]
187 // [ mtu MTU ]
188 // [ netns { PID | NAME } ]
189 // [ link-netnsid ID ]
190 // [ alias NAME ]
191 // [ vf NUM [ mac LLADDR ]
192 // [ vlan VLANID [ qos VLAN-QOS ] ]
193 // [ rate TXRATE ]
194 // [ spoofchk { on | off} ]
195 // [ query_rss { on | off} ]
196 // [ state { auto | enable | disable} ] ]
197 // [ trust { on | off} ] ]
198 // [ master DEVICE ]
199 // [ nomaster ]
200 // [ addrgenmode { eui64 | none | stable_secret | random } ]
201 // [ protodown { on | off } ]
202 // ip link show [ DEVICE | group GROUP ] [up] [master DEV] [type TYPE]
203 // ip link help [ TYPE ]
204 //TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | macvtap |
205 // bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan |
206 // gre | gretap | ip6gre | ip6gretap | vti | nlmon |
207 // bond_slave | ipvlan | geneve | bridge_slave | vrf }
208 //usage:
209 //--------------123456789.123456789.123456789.123456789.123456789.123456789.123456789.123....79
210 //usage:#define iproute_trivial_usage
211 //usage: "list|flush|add|del|change|append|replace|test ROUTE"
212 //usage:#define iproute_full_usage "\n\n"
213 //usage: "iproute list|flush SELECTOR\n"
214 //usage: " SELECTOR := [root PREFIX] [match PREFIX] [proto RTPROTO]\n"
215 //usage: " PREFIX := default|ADDR[/MASK]\n"
216 //usage: "iproute get ADDR [from ADDR iif IFACE]\n"
217 //usage: " [oif IFACE] [tos TOS]\n"
218 //usage: "iproute add|del|change|append|replace|test ROUTE\n"
219 //usage: " ROUTE := NODE_SPEC [INFO_SPEC]\n"
220 //usage: " NODE_SPEC := PREFIX"IF_FEATURE_IP_RULE(" [table TABLE_ID]")" [proto RTPROTO] [scope SCOPE] [metric METRIC]\n"
221 //usage: " INFO_SPEC := NH OPTIONS\n"
222 //usage: " NH := [via [inet|inet6] ADDR] [dev IFACE] [src ADDR] [onlink]\n"
223 //usage: " OPTIONS := [mtu [lock] NUM] [advmss [lock] NUM]"
224 //upstream man ip-route:
225 //======================
226 //ip route { show | flush } SELECTOR
227 //ip route save SELECTOR
228 //ip route restore
229 //ip route get ADDRESS [ from ADDRESS iif STRING ] [ oif STRING ] [ tos TOS ]
230 //ip route { add | del | change | append | replace } ROUTE
231 //SELECTOR := [ root PREFIX ] [ match PREFIX ] [ exact PREFIX ] [ table TABLE_ID ] [ proto RTPROTO ] [ type TYPE ] [ scope SCOPE ]
232 //ROUTE := NODE_SPEC [ INFO_SPEC ]
233 //NODE_SPEC := [ TYPE ] PREFIX [ tos TOS ] [ table TABLE_ID ] [ proto RTPROTO ] [ scope SCOPE ] [ metric METRIC ]
234 //INFO_SPEC := NH OPTIONS FLAGS [ nexthop NH ] ...
235 //NH := [ encap ENCAP ] [ via [ FAMILY ] ADDRESS ] [ dev STRING ] [ weight NUMBER ] NHFLAGS
236 // ..............................................................^ I guess [src ADDRESS] should be here
237 //FAMILY := [ inet | inet6 | ipx | dnet | mpls | bridge | link ]
238 //OPTIONS := FLAGS [ mtu NUMBER ] [ advmss NUMBER ] [ as [ to ] ADDRESS ] rtt TIME ] [ rttvar TIME ] [ reordering NUMBER ] [ window NUMBER ] [ cwnd NUMBER ] [ ssthresh REALM ] [ realms REALM ]
239 // [ rto_min TIME ] [ initcwnd NUMBER ] [ initrwnd NUMBER ] [ features FEATURES ] [ quickack BOOL ] [ congctl NAME ] [ pref PREF ] [ expires TIME ]
240 //TYPE := [ unicast | local | broadcast | multicast | throw | unreachable | prohibit | blackhole | nat ]
241 //TABLE_ID := [ local | main | default | all | NUMBER ]
242 //SCOPE := [ host | link | global | NUMBER ]
243 //NHFLAGS := [ onlink | pervasive ]
244 //RTPROTO := [ kernel | boot | static | NUMBER ]
245 //FEATURES := [ ecn | ]
246 //PREF := [ low | medium | high ]
247 //ENCAP := [ MPLS | IP ]
248 //ENCAP_MPLS := mpls [ LABEL ]
249 //ENCAP_IP := ip id TUNNEL_ID dst REMOTE_IP [ tos TOS ] [ ttl TTL ]
250 //usage:
251 //--------------123456789.123456789.123456789.123456789.123456789.123456789.123456789.123....79
252 //usage:#define iprule_trivial_usage
253 //usage: "[list] | add|del SELECTOR ACTION"
254 //usage:#define iprule_full_usage "\n\n"
255 //usage: " SELECTOR := [from PREFIX] [to PREFIX] [tos TOS] [fwmark FWMARK[/MASK]]\n"
256 //usage: " [dev IFACE] [pref NUMBER]\n"
257 //usage: " ACTION := [table TABLE_ID] [nat ADDR]\n"
258 //usage: " [prohibit|reject|unreachable]\n"
259 //usage: " [realms [SRCREALM/]DSTREALM]\n"
260 //usage: " TABLE_ID := [local|main|default|NUMBER]"
261 //usage:
262 //--------------123456789.123456789.123456789.123456789.123456789.123456789.123456789.123....79
263 //usage:#define iptunnel_trivial_usage
264 //usage: "add|change|del|show [NAME]\n"
265 //usage: " [mode ipip|gre|sit] [remote ADDR] [local ADDR] [ttl TTL]"
266 //usage:#define iptunnel_full_usage "\n\n"
267 //usage: "iptunnel add|change|del|show [NAME]\n"
268 //usage: " [mode ipip|gre|sit] [remote ADDR] [local ADDR]\n"
269 //usage: " [[i|o]seq] [[i|o]key KEY] [[i|o]csum]\n"
270 //usage: " [ttl TTL] [tos TOS] [[no]pmtudisc] [dev PHYS_DEV]"
271 //usage:
272 //usage:#define ipneigh_trivial_usage
273 //usage: "show|flush [to PREFIX] [dev DEV] [nud STATE]"
274 //usage:#define ipneigh_full_usage ""
275 //usage:
276 //usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE
277 //usage:# define IP_BAR_LINK "|"
278 //usage:#else
279 //usage:# define IP_BAR_LINK ""
280 //usage:#endif
281 //usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK
282 //usage:# define IP_BAR_TUNNEL "|"
283 //usage:#else
284 //usage:# define IP_BAR_TUNNEL ""
285 //usage:#endif
286 //usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK || ENABLE_FEATURE_IP_TUNNEL
287 //usage:# define IP_BAR_NEIGH "|"
288 //usage:#else
289 //usage:# define IP_BAR_NEIGH ""
290 //usage:#endif
291 //usage:#if ENABLE_FEATURE_IP_ADDRESS || ENABLE_FEATURE_IP_ROUTE || ENABLE_FEATURE_IP_LINK || ENABLE_FEATURE_IP_TUNNEL || ENABLE_FEATURE_IP_NEIGH
292 //usage:# define IP_BAR_RULE "|"
293 //usage:#else
294 //usage:# define IP_BAR_RULE ""
295 //usage:#endif
296 //usage:
297 //usage:#define ip_trivial_usage
298 //usage: "[OPTIONS] "
299 //usage: IF_FEATURE_IP_ADDRESS("address")
300 //usage: IF_FEATURE_IP_ROUTE( IF_FEATURE_IP_ADDRESS("|")"route")
301 //usage: IF_FEATURE_IP_LINK( IP_BAR_LINK "link")
302 //usage: IF_FEATURE_IP_TUNNEL( IP_BAR_TUNNEL"tunnel")
303 //usage: IF_FEATURE_IP_NEIGH( IP_BAR_NEIGH "neigh")
304 //usage: IF_FEATURE_IP_RULE( IP_BAR_RULE "rule")
305 //usage: " [ARGS]"
306 //usage:#define ip_full_usage "\n\n"
307 //usage: "OPTIONS := -f[amily] inet|inet6|link | -o[neline]\n"
308 //usage: IF_FEATURE_IP_ADDRESS("\n"
309 //usage: "ip addr "ipaddr_trivial_usage)
310 //usage: IF_FEATURE_IP_ROUTE("\n"
311 //usage: "ip route "iproute_trivial_usage)
312 //usage: IF_FEATURE_IP_LINK("\n"
313 //usage: "ip link "iplink_trivial_usage)
314 //usage: IF_FEATURE_IP_TUNNEL("\n"
315 //usage: "ip tunnel "iptunnel_trivial_usage)
316 //usage: IF_FEATURE_IP_NEIGH("\n"
317 //usage: "ip neigh "ipneigh_trivial_usage)
318 //usage: IF_FEATURE_IP_RULE("\n"
319 //usage: "ip rule "iprule_trivial_usage)
320
321 #include "libbb.h"
322
323 #include "libiproute/utils.h"
324 #include "libiproute/ip_common.h"
325
326 typedef int FAST_FUNC (*ip_func_ptr_t)(char**);
327
328 #if ENABLE_IPADDR \
329 || ENABLE_IPLINK \
330 || ENABLE_IPROUTE \
331 || ENABLE_IPRULE \
332 || ENABLE_IPTUNNEL \
333 || ENABLE_IPNEIGH
ip_do(ip_func_ptr_t ip_func,char ** argv)334 static int ip_do(ip_func_ptr_t ip_func, char **argv)
335 {
336 argv = ip_parse_common_args(argv + 1);
337 return ip_func(argv);
338 }
339 #endif
340
341 #if ENABLE_IPADDR
342 int ipaddr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
ipaddr_main(int argc UNUSED_PARAM,char ** argv)343 int ipaddr_main(int argc UNUSED_PARAM, char **argv)
344 {
345 return ip_do(do_ipaddr, argv);
346 }
347 #endif
348 #if ENABLE_IPLINK
349 int iplink_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
iplink_main(int argc UNUSED_PARAM,char ** argv)350 int iplink_main(int argc UNUSED_PARAM, char **argv)
351 {
352 return ip_do(do_iplink, argv);
353 }
354 #endif
355 #if ENABLE_IPROUTE
356 int iproute_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
iproute_main(int argc UNUSED_PARAM,char ** argv)357 int iproute_main(int argc UNUSED_PARAM, char **argv)
358 {
359 return ip_do(do_iproute, argv);
360 }
361 #endif
362 #if ENABLE_IPRULE
363 int iprule_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
iprule_main(int argc UNUSED_PARAM,char ** argv)364 int iprule_main(int argc UNUSED_PARAM, char **argv)
365 {
366 return ip_do(do_iprule, argv);
367 }
368 #endif
369 #if ENABLE_IPTUNNEL
370 int iptunnel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
iptunnel_main(int argc UNUSED_PARAM,char ** argv)371 int iptunnel_main(int argc UNUSED_PARAM, char **argv)
372 {
373 return ip_do(do_iptunnel, argv);
374 }
375 #endif
376 #if ENABLE_IPNEIGH
377 int ipneigh_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
ipneigh_main(int argc UNUSED_PARAM,char ** argv)378 int ipneigh_main(int argc UNUSED_PARAM, char **argv)
379 {
380 return ip_do(do_ipneigh, argv);
381 }
382 #endif
383
384 #if ENABLE_IP
ip_print_help(char ** argv UNUSED_PARAM)385 static int FAST_FUNC ip_print_help(char **argv UNUSED_PARAM)
386 {
387 bb_show_usage();
388 }
389
390 int ip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
ip_main(int argc UNUSED_PARAM,char ** argv)391 int ip_main(int argc UNUSED_PARAM, char **argv)
392 {
393 static const char keywords[] ALIGN1 = ""
394 IF_FEATURE_IP_ADDRESS("address\0")
395 IF_FEATURE_IP_ROUTE("route\0")
396 IF_FEATURE_IP_ROUTE("r\0")
397 IF_FEATURE_IP_LINK("link\0")
398 IF_FEATURE_IP_TUNNEL("tunnel\0")
399 IF_FEATURE_IP_TUNNEL("tunl\0")
400 IF_FEATURE_IP_RULE("rule\0")
401 IF_FEATURE_IP_NEIGH("neigh\0")
402 ;
403 static const ip_func_ptr_t ip_func_ptrs[] ALIGN_PTR = {
404 ip_print_help,
405 IF_FEATURE_IP_ADDRESS(do_ipaddr,)
406 IF_FEATURE_IP_ROUTE(do_iproute,)
407 IF_FEATURE_IP_ROUTE(do_iproute,)
408 IF_FEATURE_IP_LINK(do_iplink,)
409 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
410 IF_FEATURE_IP_TUNNEL(do_iptunnel,)
411 IF_FEATURE_IP_RULE(do_iprule,)
412 IF_FEATURE_IP_NEIGH(do_ipneigh,)
413 };
414 ip_func_ptr_t ip_func;
415 int key;
416
417 argv = ip_parse_common_args(argv + 1);
418 if (ARRAY_SIZE(ip_func_ptrs) > 1 && *argv)
419 key = index_in_substrings(keywords, *argv++);
420 else
421 key = -1;
422 ip_func = ip_func_ptrs[key + 1];
423
424 return ip_func(argv);
425 }
426 #endif
427