xref: /linux/include/uapi/linux/rtnetlink.h (revision e57a3447)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI__LINUX_RTNETLINK_H
3 #define _UAPI__LINUX_RTNETLINK_H
4 
5 #include <linux/types.h>
6 #include <linux/netlink.h>
7 #include <linux/if_link.h>
8 #include <linux/if_addr.h>
9 #include <linux/neighbour.h>
10 
11 /* rtnetlink families. Values up to 127 are reserved for real address
12  * families, values above 128 may be used arbitrarily.
13  */
14 #define RTNL_FAMILY_IPMR		128
15 #define RTNL_FAMILY_IP6MR		129
16 #define RTNL_FAMILY_MAX			129
17 
18 /****
19  *		Routing/neighbour discovery messages.
20  ****/
21 
22 /* Types of messages */
23 
24 enum {
25 	RTM_BASE	= 16,
26 #define RTM_BASE	RTM_BASE
27 
28 	RTM_NEWLINK	= 16,
29 #define RTM_NEWLINK	RTM_NEWLINK
30 	RTM_DELLINK,
31 #define RTM_DELLINK	RTM_DELLINK
32 	RTM_GETLINK,
33 #define RTM_GETLINK	RTM_GETLINK
34 	RTM_SETLINK,
35 #define RTM_SETLINK	RTM_SETLINK
36 
37 	RTM_NEWADDR	= 20,
38 #define RTM_NEWADDR	RTM_NEWADDR
39 	RTM_DELADDR,
40 #define RTM_DELADDR	RTM_DELADDR
41 	RTM_GETADDR,
42 #define RTM_GETADDR	RTM_GETADDR
43 
44 	RTM_NEWROUTE	= 24,
45 #define RTM_NEWROUTE	RTM_NEWROUTE
46 	RTM_DELROUTE,
47 #define RTM_DELROUTE	RTM_DELROUTE
48 	RTM_GETROUTE,
49 #define RTM_GETROUTE	RTM_GETROUTE
50 
51 	RTM_NEWNEIGH	= 28,
52 #define RTM_NEWNEIGH	RTM_NEWNEIGH
53 	RTM_DELNEIGH,
54 #define RTM_DELNEIGH	RTM_DELNEIGH
55 	RTM_GETNEIGH,
56 #define RTM_GETNEIGH	RTM_GETNEIGH
57 
58 	RTM_NEWRULE	= 32,
59 #define RTM_NEWRULE	RTM_NEWRULE
60 	RTM_DELRULE,
61 #define RTM_DELRULE	RTM_DELRULE
62 	RTM_GETRULE,
63 #define RTM_GETRULE	RTM_GETRULE
64 
65 	RTM_NEWQDISC	= 36,
66 #define RTM_NEWQDISC	RTM_NEWQDISC
67 	RTM_DELQDISC,
68 #define RTM_DELQDISC	RTM_DELQDISC
69 	RTM_GETQDISC,
70 #define RTM_GETQDISC	RTM_GETQDISC
71 
72 	RTM_NEWTCLASS	= 40,
73 #define RTM_NEWTCLASS	RTM_NEWTCLASS
74 	RTM_DELTCLASS,
75 #define RTM_DELTCLASS	RTM_DELTCLASS
76 	RTM_GETTCLASS,
77 #define RTM_GETTCLASS	RTM_GETTCLASS
78 
79 	RTM_NEWTFILTER	= 44,
80 #define RTM_NEWTFILTER	RTM_NEWTFILTER
81 	RTM_DELTFILTER,
82 #define RTM_DELTFILTER	RTM_DELTFILTER
83 	RTM_GETTFILTER,
84 #define RTM_GETTFILTER	RTM_GETTFILTER
85 
86 	RTM_NEWACTION	= 48,
87 #define RTM_NEWACTION   RTM_NEWACTION
88 	RTM_DELACTION,
89 #define RTM_DELACTION   RTM_DELACTION
90 	RTM_GETACTION,
91 #define RTM_GETACTION   RTM_GETACTION
92 
93 	RTM_NEWPREFIX	= 52,
94 #define RTM_NEWPREFIX	RTM_NEWPREFIX
95 
96 	RTM_GETMULTICAST = 58,
97 #define RTM_GETMULTICAST RTM_GETMULTICAST
98 
99 	RTM_GETANYCAST	= 62,
100 #define RTM_GETANYCAST	RTM_GETANYCAST
101 
102 	RTM_NEWNEIGHTBL	= 64,
103 #define RTM_NEWNEIGHTBL	RTM_NEWNEIGHTBL
104 	RTM_GETNEIGHTBL	= 66,
105 #define RTM_GETNEIGHTBL	RTM_GETNEIGHTBL
106 	RTM_SETNEIGHTBL,
107 #define RTM_SETNEIGHTBL	RTM_SETNEIGHTBL
108 
109 	RTM_NEWNDUSEROPT = 68,
110 #define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT
111 
112 	RTM_NEWADDRLABEL = 72,
113 #define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
114 	RTM_DELADDRLABEL,
115 #define RTM_DELADDRLABEL RTM_DELADDRLABEL
116 	RTM_GETADDRLABEL,
117 #define RTM_GETADDRLABEL RTM_GETADDRLABEL
118 
119 	RTM_GETDCB = 78,
120 #define RTM_GETDCB RTM_GETDCB
121 	RTM_SETDCB,
122 #define RTM_SETDCB RTM_SETDCB
123 
124 	RTM_NEWNETCONF = 80,
125 #define RTM_NEWNETCONF RTM_NEWNETCONF
126 	RTM_DELNETCONF,
127 #define RTM_DELNETCONF RTM_DELNETCONF
128 	RTM_GETNETCONF = 82,
129 #define RTM_GETNETCONF RTM_GETNETCONF
130 
131 	RTM_NEWMDB = 84,
132 #define RTM_NEWMDB RTM_NEWMDB
133 	RTM_DELMDB = 85,
134 #define RTM_DELMDB RTM_DELMDB
135 	RTM_GETMDB = 86,
136 #define RTM_GETMDB RTM_GETMDB
137 
138 	RTM_NEWNSID = 88,
139 #define RTM_NEWNSID RTM_NEWNSID
140 	RTM_DELNSID = 89,
141 #define RTM_DELNSID RTM_DELNSID
142 	RTM_GETNSID = 90,
143 #define RTM_GETNSID RTM_GETNSID
144 
145 	RTM_NEWSTATS = 92,
146 #define RTM_NEWSTATS RTM_NEWSTATS
147 	RTM_GETSTATS = 94,
148 #define RTM_GETSTATS RTM_GETSTATS
149 	RTM_SETSTATS,
150 #define RTM_SETSTATS RTM_SETSTATS
151 
152 	RTM_NEWCACHEREPORT = 96,
153 #define RTM_NEWCACHEREPORT RTM_NEWCACHEREPORT
154 
155 	RTM_NEWCHAIN = 100,
156 #define RTM_NEWCHAIN RTM_NEWCHAIN
157 	RTM_DELCHAIN,
158 #define RTM_DELCHAIN RTM_DELCHAIN
159 	RTM_GETCHAIN,
160 #define RTM_GETCHAIN RTM_GETCHAIN
161 
162 	RTM_NEWNEXTHOP = 104,
163 #define RTM_NEWNEXTHOP	RTM_NEWNEXTHOP
164 	RTM_DELNEXTHOP,
165 #define RTM_DELNEXTHOP	RTM_DELNEXTHOP
166 	RTM_GETNEXTHOP,
167 #define RTM_GETNEXTHOP	RTM_GETNEXTHOP
168 
169 	RTM_NEWLINKPROP = 108,
170 #define RTM_NEWLINKPROP	RTM_NEWLINKPROP
171 	RTM_DELLINKPROP,
172 #define RTM_DELLINKPROP	RTM_DELLINKPROP
173 	RTM_GETLINKPROP,
174 #define RTM_GETLINKPROP	RTM_GETLINKPROP
175 
176 	RTM_NEWVLAN = 112,
177 #define RTM_NEWNVLAN	RTM_NEWVLAN
178 	RTM_DELVLAN,
179 #define RTM_DELVLAN	RTM_DELVLAN
180 	RTM_GETVLAN,
181 #define RTM_GETVLAN	RTM_GETVLAN
182 
183 	RTM_NEWNEXTHOPBUCKET = 116,
184 #define RTM_NEWNEXTHOPBUCKET	RTM_NEWNEXTHOPBUCKET
185 	RTM_DELNEXTHOPBUCKET,
186 #define RTM_DELNEXTHOPBUCKET	RTM_DELNEXTHOPBUCKET
187 	RTM_GETNEXTHOPBUCKET,
188 #define RTM_GETNEXTHOPBUCKET	RTM_GETNEXTHOPBUCKET
189 
190 	RTM_NEWTUNNEL = 120,
191 #define RTM_NEWTUNNEL	RTM_NEWTUNNEL
192 	RTM_DELTUNNEL,
193 #define RTM_DELTUNNEL	RTM_DELTUNNEL
194 	RTM_GETTUNNEL,
195 #define RTM_GETTUNNEL	RTM_GETTUNNEL
196 
197 	__RTM_MAX,
198 #define RTM_MAX		(((__RTM_MAX + 3) & ~3) - 1)
199 };
200 
201 #define RTM_NR_MSGTYPES	(RTM_MAX + 1 - RTM_BASE)
202 #define RTM_NR_FAMILIES	(RTM_NR_MSGTYPES >> 2)
203 #define RTM_FAM(cmd)	(((cmd) - RTM_BASE) >> 2)
204 
205 /*
206    Generic structure for encapsulation of optional route information.
207    It is reminiscent of sockaddr, but with sa_family replaced
208    with attribute type.
209  */
210 
211 struct rtattr {
212 	unsigned short	rta_len;
213 	unsigned short	rta_type;
214 };
215 
216 /* Macros to handle rtattributes */
217 
218 #define RTA_ALIGNTO	4U
219 #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
220 #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
221 			 (rta)->rta_len >= sizeof(struct rtattr) && \
222 			 (rta)->rta_len <= (len))
223 #define RTA_NEXT(rta,attrlen)	((attrlen) -= RTA_ALIGN((rta)->rta_len), \
224 				 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
225 #define RTA_LENGTH(len)	(RTA_ALIGN(sizeof(struct rtattr)) + (len))
226 #define RTA_SPACE(len)	RTA_ALIGN(RTA_LENGTH(len))
227 #define RTA_DATA(rta)   ((void*)(((char*)(rta)) + RTA_LENGTH(0)))
228 #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
229 
230 
231 
232 
233 /******************************************************************************
234  *		Definitions used in routing table administration.
235  ****/
236 
237 struct rtmsg {
238 	unsigned char		rtm_family;
239 	unsigned char		rtm_dst_len;
240 	unsigned char		rtm_src_len;
241 	unsigned char		rtm_tos;
242 
243 	unsigned char		rtm_table;	/* Routing table id */
244 	unsigned char		rtm_protocol;	/* Routing protocol; see below	*/
245 	unsigned char		rtm_scope;	/* See below */
246 	unsigned char		rtm_type;	/* See below	*/
247 
248 	unsigned		rtm_flags;
249 };
250 
251 /* rtm_type */
252 
253 enum {
254 	RTN_UNSPEC,
255 	RTN_UNICAST,		/* Gateway or direct route	*/
256 	RTN_LOCAL,		/* Accept locally		*/
257 	RTN_BROADCAST,		/* Accept locally as broadcast,
258 				   send as broadcast */
259 	RTN_ANYCAST,		/* Accept locally as broadcast,
260 				   but send as unicast */
261 	RTN_MULTICAST,		/* Multicast route		*/
262 	RTN_BLACKHOLE,		/* Drop				*/
263 	RTN_UNREACHABLE,	/* Destination is unreachable   */
264 	RTN_PROHIBIT,		/* Administratively prohibited	*/
265 	RTN_THROW,		/* Not in this table		*/
266 	RTN_NAT,		/* Translate this address	*/
267 	RTN_XRESOLVE,		/* Use external resolver	*/
268 	__RTN_MAX
269 };
270 
271 #define RTN_MAX (__RTN_MAX - 1)
272 
273 
274 /* rtm_protocol */
275 
276 #define RTPROT_UNSPEC		0
277 #define RTPROT_REDIRECT		1	/* Route installed by ICMP redirects;
278 					   not used by current IPv4 */
279 #define RTPROT_KERNEL		2	/* Route installed by kernel		*/
280 #define RTPROT_BOOT		3	/* Route installed during boot		*/
281 #define RTPROT_STATIC		4	/* Route installed by administrator	*/
282 
283 /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
284    they are just passed from user and back as is.
285    It will be used by hypothetical multiple routing daemons.
286    Note that protocol values should be standardized in order to
287    avoid conflicts.
288  */
289 
290 #define RTPROT_GATED		8	/* Apparently, GateD */
291 #define RTPROT_RA		9	/* RDISC/ND router advertisements */
292 #define RTPROT_MRT		10	/* Merit MRT */
293 #define RTPROT_ZEBRA		11	/* Zebra */
294 #define RTPROT_BIRD		12	/* BIRD */
295 #define RTPROT_DNROUTED		13	/* DECnet routing daemon */
296 #define RTPROT_XORP		14	/* XORP */
297 #define RTPROT_NTK		15	/* Netsukuku */
298 #define RTPROT_DHCP		16	/* DHCP client */
299 #define RTPROT_MROUTED		17	/* Multicast daemon */
300 #define RTPROT_KEEPALIVED	18	/* Keepalived daemon */
301 #define RTPROT_BABEL		42	/* Babel daemon */
302 #define RTPROT_OPENR		99	/* Open Routing (Open/R) Routes */
303 #define RTPROT_BGP		186	/* BGP Routes */
304 #define RTPROT_ISIS		187	/* ISIS Routes */
305 #define RTPROT_OSPF		188	/* OSPF Routes */
306 #define RTPROT_RIP		189	/* RIP Routes */
307 #define RTPROT_EIGRP		192	/* EIGRP Routes */
308 
309 /* rtm_scope
310 
311    Really it is not scope, but sort of distance to the destination.
312    NOWHERE are reserved for not existing destinations, HOST is our
313    local addresses, LINK are destinations, located on directly attached
314    link and UNIVERSE is everywhere in the Universe.
315 
316    Intermediate values are also possible f.e. interior routes
317    could be assigned a value between UNIVERSE and LINK.
318 */
319 
320 enum rt_scope_t {
321 	RT_SCOPE_UNIVERSE=0,
322 /* User defined values  */
323 	RT_SCOPE_SITE=200,
324 	RT_SCOPE_LINK=253,
325 	RT_SCOPE_HOST=254,
326 	RT_SCOPE_NOWHERE=255
327 };
328 
329 /* rtm_flags */
330 
331 #define RTM_F_NOTIFY		0x100	/* Notify user of route change	*/
332 #define RTM_F_CLONED		0x200	/* This route is cloned		*/
333 #define RTM_F_EQUALIZE		0x400	/* Multipath equalizer: NI	*/
334 #define RTM_F_PREFIX		0x800	/* Prefix addresses		*/
335 #define RTM_F_LOOKUP_TABLE	0x1000	/* set rtm_table to FIB lookup result */
336 #define RTM_F_FIB_MATCH	        0x2000	/* return full fib lookup match */
337 #define RTM_F_OFFLOAD		0x4000	/* route is offloaded */
338 #define RTM_F_TRAP		0x8000	/* route is trapping packets */
339 #define RTM_F_OFFLOAD_FAILED	0x20000000 /* route offload failed, this value
340 					    * is chosen to avoid conflicts with
341 					    * other flags defined in
342 					    * include/uapi/linux/ipv6_route.h
343 					    */
344 
345 /* Reserved table identifiers */
346 
347 enum rt_class_t {
348 	RT_TABLE_UNSPEC=0,
349 /* User defined values */
350 	RT_TABLE_COMPAT=252,
351 	RT_TABLE_DEFAULT=253,
352 	RT_TABLE_MAIN=254,
353 	RT_TABLE_LOCAL=255,
354 	RT_TABLE_MAX=0xFFFFFFFF
355 };
356 
357 
358 /* Routing message attributes */
359 
360 enum rtattr_type_t {
361 	RTA_UNSPEC,
362 	RTA_DST,
363 	RTA_SRC,
364 	RTA_IIF,
365 	RTA_OIF,
366 	RTA_GATEWAY,
367 	RTA_PRIORITY,
368 	RTA_PREFSRC,
369 	RTA_METRICS,
370 	RTA_MULTIPATH,
371 	RTA_PROTOINFO, /* no longer used */
372 	RTA_FLOW,
373 	RTA_CACHEINFO,
374 	RTA_SESSION, /* no longer used */
375 	RTA_MP_ALGO, /* no longer used */
376 	RTA_TABLE,
377 	RTA_MARK,
378 	RTA_MFC_STATS,
379 	RTA_VIA,
380 	RTA_NEWDST,
381 	RTA_PREF,
382 	RTA_ENCAP_TYPE,
383 	RTA_ENCAP,
384 	RTA_EXPIRES,
385 	RTA_PAD,
386 	RTA_UID,
387 	RTA_TTL_PROPAGATE,
388 	RTA_IP_PROTO,
389 	RTA_SPORT,
390 	RTA_DPORT,
391 	RTA_NH_ID,
392 	__RTA_MAX
393 };
394 
395 #define RTA_MAX (__RTA_MAX - 1)
396 
397 #define RTM_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
398 #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
399 
400 /* RTM_MULTIPATH --- array of struct rtnexthop.
401  *
402  * "struct rtnexthop" describes all necessary nexthop information,
403  * i.e. parameters of path to a destination via this nexthop.
404  *
405  * At the moment it is impossible to set different prefsrc, mtu, window
406  * and rtt for different paths from multipath.
407  */
408 
409 struct rtnexthop {
410 	unsigned short		rtnh_len;
411 	unsigned char		rtnh_flags;
412 	unsigned char		rtnh_hops;
413 	int			rtnh_ifindex;
414 };
415 
416 /* rtnh_flags */
417 
418 #define RTNH_F_DEAD		1	/* Nexthop is dead (used by multipath)	*/
419 #define RTNH_F_PERVASIVE	2	/* Do recursive gateway lookup	*/
420 #define RTNH_F_ONLINK		4	/* Gateway is forced on link	*/
421 #define RTNH_F_OFFLOAD		8	/* Nexthop is offloaded */
422 #define RTNH_F_LINKDOWN		16	/* carrier-down on nexthop */
423 #define RTNH_F_UNRESOLVED	32	/* The entry is unresolved (ipmr) */
424 #define RTNH_F_TRAP		64	/* Nexthop is trapping packets */
425 
426 #define RTNH_COMPARE_MASK	(RTNH_F_DEAD | RTNH_F_LINKDOWN | \
427 				 RTNH_F_OFFLOAD | RTNH_F_TRAP)
428 
429 /* Macros to handle hexthops */
430 
431 #define RTNH_ALIGNTO	4
432 #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
433 #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
434 			   ((int)(rtnh)->rtnh_len) <= (len))
435 #define RTNH_NEXT(rtnh)	((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
436 #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
437 #define RTNH_SPACE(len)	RTNH_ALIGN(RTNH_LENGTH(len))
438 #define RTNH_DATA(rtnh)   ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))
439 
440 /* RTA_VIA */
441 struct rtvia {
442 	__kernel_sa_family_t	rtvia_family;
443 	__u8			rtvia_addr[];
444 };
445 
446 /* RTM_CACHEINFO */
447 
448 struct rta_cacheinfo {
449 	__u32	rta_clntref;
450 	__u32	rta_lastuse;
451 	__s32	rta_expires;
452 	__u32	rta_error;
453 	__u32	rta_used;
454 
455 #define RTNETLINK_HAVE_PEERINFO 1
456 	__u32	rta_id;
457 	__u32	rta_ts;
458 	__u32	rta_tsage;
459 };
460 
461 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
462 
463 enum {
464 	RTAX_UNSPEC,
465 #define RTAX_UNSPEC RTAX_UNSPEC
466 	RTAX_LOCK,
467 #define RTAX_LOCK RTAX_LOCK
468 	RTAX_MTU,
469 #define RTAX_MTU RTAX_MTU
470 	RTAX_WINDOW,
471 #define RTAX_WINDOW RTAX_WINDOW
472 	RTAX_RTT,
473 #define RTAX_RTT RTAX_RTT
474 	RTAX_RTTVAR,
475 #define RTAX_RTTVAR RTAX_RTTVAR
476 	RTAX_SSTHRESH,
477 #define RTAX_SSTHRESH RTAX_SSTHRESH
478 	RTAX_CWND,
479 #define RTAX_CWND RTAX_CWND
480 	RTAX_ADVMSS,
481 #define RTAX_ADVMSS RTAX_ADVMSS
482 	RTAX_REORDERING,
483 #define RTAX_REORDERING RTAX_REORDERING
484 	RTAX_HOPLIMIT,
485 #define RTAX_HOPLIMIT RTAX_HOPLIMIT
486 	RTAX_INITCWND,
487 #define RTAX_INITCWND RTAX_INITCWND
488 	RTAX_FEATURES,
489 #define RTAX_FEATURES RTAX_FEATURES
490 	RTAX_RTO_MIN,
491 #define RTAX_RTO_MIN RTAX_RTO_MIN
492 	RTAX_INITRWND,
493 #define RTAX_INITRWND RTAX_INITRWND
494 	RTAX_QUICKACK,
495 #define RTAX_QUICKACK RTAX_QUICKACK
496 	RTAX_CC_ALGO,
497 #define RTAX_CC_ALGO RTAX_CC_ALGO
498 	RTAX_FASTOPEN_NO_COOKIE,
499 #define RTAX_FASTOPEN_NO_COOKIE RTAX_FASTOPEN_NO_COOKIE
500 	__RTAX_MAX
501 };
502 
503 #define RTAX_MAX (__RTAX_MAX - 1)
504 
505 #define RTAX_FEATURE_ECN		(1 << 0)
506 #define RTAX_FEATURE_SACK		(1 << 1) /* unused */
507 #define RTAX_FEATURE_TIMESTAMP		(1 << 2) /* unused */
508 #define RTAX_FEATURE_ALLFRAG		(1 << 3) /* unused */
509 #define RTAX_FEATURE_TCP_USEC_TS	(1 << 4)
510 
511 #define RTAX_FEATURE_MASK	(RTAX_FEATURE_ECN |		\
512 				 RTAX_FEATURE_SACK |		\
513 				 RTAX_FEATURE_TIMESTAMP |	\
514 				 RTAX_FEATURE_ALLFRAG |		\
515 				 RTAX_FEATURE_TCP_USEC_TS)
516 
517 struct rta_session {
518 	__u8	proto;
519 	__u8	pad1;
520 	__u16	pad2;
521 
522 	union {
523 		struct {
524 			__u16	sport;
525 			__u16	dport;
526 		} ports;
527 
528 		struct {
529 			__u8	type;
530 			__u8	code;
531 			__u16	ident;
532 		} icmpt;
533 
534 		__u32		spi;
535 	} u;
536 };
537 
538 struct rta_mfc_stats {
539 	__u64	mfcs_packets;
540 	__u64	mfcs_bytes;
541 	__u64	mfcs_wrong_if;
542 };
543 
544 /****
545  *		General form of address family dependent message.
546  ****/
547 
548 struct rtgenmsg {
549 	unsigned char		rtgen_family;
550 };
551 
552 /*****************************************************************
553  *		Link layer specific messages.
554  ****/
555 
556 /* struct ifinfomsg
557  * passes link level specific information, not dependent
558  * on network protocol.
559  */
560 
561 struct ifinfomsg {
562 	unsigned char	ifi_family;
563 	unsigned char	__ifi_pad;
564 	unsigned short	ifi_type;		/* ARPHRD_* */
565 	int		ifi_index;		/* Link index	*/
566 	unsigned	ifi_flags;		/* IFF_* flags	*/
567 	unsigned	ifi_change;		/* IFF_* change mask */
568 };
569 
570 /********************************************************************
571  *		prefix information
572  ****/
573 
574 struct prefixmsg {
575 	unsigned char	prefix_family;
576 	unsigned char	prefix_pad1;
577 	unsigned short	prefix_pad2;
578 	int		prefix_ifindex;
579 	unsigned char	prefix_type;
580 	unsigned char	prefix_len;
581 	unsigned char	prefix_flags;
582 	unsigned char	prefix_pad3;
583 };
584 
585 enum
586 {
587 	PREFIX_UNSPEC,
588 	PREFIX_ADDRESS,
589 	PREFIX_CACHEINFO,
590 	__PREFIX_MAX
591 };
592 
593 #define PREFIX_MAX	(__PREFIX_MAX - 1)
594 
595 struct prefix_cacheinfo {
596 	__u32	preferred_time;
597 	__u32	valid_time;
598 };
599 
600 
601 /*****************************************************************
602  *		Traffic control messages.
603  ****/
604 
605 struct tcmsg {
606 	unsigned char	tcm_family;
607 	unsigned char	tcm__pad1;
608 	unsigned short	tcm__pad2;
609 	int		tcm_ifindex;
610 	__u32		tcm_handle;
611 	__u32		tcm_parent;
612 /* tcm_block_index is used instead of tcm_parent
613  * in case tcm_ifindex == TCM_IFINDEX_MAGIC_BLOCK
614  */
615 #define tcm_block_index tcm_parent
616 	__u32		tcm_info;
617 };
618 
619 /* For manipulation of filters in shared block, tcm_ifindex is set to
620  * TCM_IFINDEX_MAGIC_BLOCK, and tcm_parent is aliased to tcm_block_index
621  * which is the block index.
622  */
623 #define TCM_IFINDEX_MAGIC_BLOCK (0xFFFFFFFFU)
624 
625 enum {
626 	TCA_UNSPEC,
627 	TCA_KIND,
628 	TCA_OPTIONS,
629 	TCA_STATS,
630 	TCA_XSTATS,
631 	TCA_RATE,
632 	TCA_FCNT,
633 	TCA_STATS2,
634 	TCA_STAB,
635 	TCA_PAD,
636 	TCA_DUMP_INVISIBLE,
637 	TCA_CHAIN,
638 	TCA_HW_OFFLOAD,
639 	TCA_INGRESS_BLOCK,
640 	TCA_EGRESS_BLOCK,
641 	TCA_DUMP_FLAGS,
642 	TCA_EXT_WARN_MSG,
643 	__TCA_MAX
644 };
645 
646 #define TCA_MAX (__TCA_MAX - 1)
647 
648 #define TCA_DUMP_FLAGS_TERSE (1 << 0) /* Means that in dump user gets only basic
649 				       * data necessary to identify the objects
650 				       * (handle, cookie, etc.) and stats.
651 				       */
652 
653 #define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
654 #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
655 
656 /********************************************************************
657  *		Neighbor Discovery userland options
658  ****/
659 
660 struct nduseroptmsg {
661 	unsigned char	nduseropt_family;
662 	unsigned char	nduseropt_pad1;
663 	unsigned short	nduseropt_opts_len;	/* Total length of options */
664 	int		nduseropt_ifindex;
665 	__u8		nduseropt_icmp_type;
666 	__u8		nduseropt_icmp_code;
667 	unsigned short	nduseropt_pad2;
668 	unsigned int	nduseropt_pad3;
669 	/* Followed by one or more ND options */
670 };
671 
672 enum {
673 	NDUSEROPT_UNSPEC,
674 	NDUSEROPT_SRCADDR,
675 	__NDUSEROPT_MAX
676 };
677 
678 #define NDUSEROPT_MAX	(__NDUSEROPT_MAX - 1)
679 
680 #ifndef __KERNEL__
681 /* RTnetlink multicast groups - backwards compatibility for userspace */
682 #define RTMGRP_LINK		1
683 #define RTMGRP_NOTIFY		2
684 #define RTMGRP_NEIGH		4
685 #define RTMGRP_TC		8
686 
687 #define RTMGRP_IPV4_IFADDR	0x10
688 #define RTMGRP_IPV4_MROUTE	0x20
689 #define RTMGRP_IPV4_ROUTE	0x40
690 #define RTMGRP_IPV4_RULE	0x80
691 
692 #define RTMGRP_IPV6_IFADDR	0x100
693 #define RTMGRP_IPV6_MROUTE	0x200
694 #define RTMGRP_IPV6_ROUTE	0x400
695 #define RTMGRP_IPV6_IFINFO	0x800
696 
697 #define RTMGRP_DECnet_IFADDR    0x1000
698 #define RTMGRP_DECnet_ROUTE     0x4000
699 
700 #define RTMGRP_IPV6_PREFIX	0x20000
701 #endif
702 
703 /* RTnetlink multicast groups */
704 enum rtnetlink_groups {
705 	RTNLGRP_NONE,
706 #define RTNLGRP_NONE		RTNLGRP_NONE
707 	RTNLGRP_LINK,
708 #define RTNLGRP_LINK		RTNLGRP_LINK
709 	RTNLGRP_NOTIFY,
710 #define RTNLGRP_NOTIFY		RTNLGRP_NOTIFY
711 	RTNLGRP_NEIGH,
712 #define RTNLGRP_NEIGH		RTNLGRP_NEIGH
713 	RTNLGRP_TC,
714 #define RTNLGRP_TC		RTNLGRP_TC
715 	RTNLGRP_IPV4_IFADDR,
716 #define RTNLGRP_IPV4_IFADDR	RTNLGRP_IPV4_IFADDR
717 	RTNLGRP_IPV4_MROUTE,
718 #define	RTNLGRP_IPV4_MROUTE	RTNLGRP_IPV4_MROUTE
719 	RTNLGRP_IPV4_ROUTE,
720 #define RTNLGRP_IPV4_ROUTE	RTNLGRP_IPV4_ROUTE
721 	RTNLGRP_IPV4_RULE,
722 #define RTNLGRP_IPV4_RULE	RTNLGRP_IPV4_RULE
723 	RTNLGRP_IPV6_IFADDR,
724 #define RTNLGRP_IPV6_IFADDR	RTNLGRP_IPV6_IFADDR
725 	RTNLGRP_IPV6_MROUTE,
726 #define RTNLGRP_IPV6_MROUTE	RTNLGRP_IPV6_MROUTE
727 	RTNLGRP_IPV6_ROUTE,
728 #define RTNLGRP_IPV6_ROUTE	RTNLGRP_IPV6_ROUTE
729 	RTNLGRP_IPV6_IFINFO,
730 #define RTNLGRP_IPV6_IFINFO	RTNLGRP_IPV6_IFINFO
731 	RTNLGRP_DECnet_IFADDR,
732 #define RTNLGRP_DECnet_IFADDR	RTNLGRP_DECnet_IFADDR
733 	RTNLGRP_NOP2,
734 	RTNLGRP_DECnet_ROUTE,
735 #define RTNLGRP_DECnet_ROUTE	RTNLGRP_DECnet_ROUTE
736 	RTNLGRP_DECnet_RULE,
737 #define RTNLGRP_DECnet_RULE	RTNLGRP_DECnet_RULE
738 	RTNLGRP_NOP4,
739 	RTNLGRP_IPV6_PREFIX,
740 #define RTNLGRP_IPV6_PREFIX	RTNLGRP_IPV6_PREFIX
741 	RTNLGRP_IPV6_RULE,
742 #define RTNLGRP_IPV6_RULE	RTNLGRP_IPV6_RULE
743 	RTNLGRP_ND_USEROPT,
744 #define RTNLGRP_ND_USEROPT	RTNLGRP_ND_USEROPT
745 	RTNLGRP_PHONET_IFADDR,
746 #define RTNLGRP_PHONET_IFADDR	RTNLGRP_PHONET_IFADDR
747 	RTNLGRP_PHONET_ROUTE,
748 #define RTNLGRP_PHONET_ROUTE	RTNLGRP_PHONET_ROUTE
749 	RTNLGRP_DCB,
750 #define RTNLGRP_DCB		RTNLGRP_DCB
751 	RTNLGRP_IPV4_NETCONF,
752 #define RTNLGRP_IPV4_NETCONF	RTNLGRP_IPV4_NETCONF
753 	RTNLGRP_IPV6_NETCONF,
754 #define RTNLGRP_IPV6_NETCONF	RTNLGRP_IPV6_NETCONF
755 	RTNLGRP_MDB,
756 #define RTNLGRP_MDB		RTNLGRP_MDB
757 	RTNLGRP_MPLS_ROUTE,
758 #define RTNLGRP_MPLS_ROUTE	RTNLGRP_MPLS_ROUTE
759 	RTNLGRP_NSID,
760 #define RTNLGRP_NSID		RTNLGRP_NSID
761 	RTNLGRP_MPLS_NETCONF,
762 #define RTNLGRP_MPLS_NETCONF	RTNLGRP_MPLS_NETCONF
763 	RTNLGRP_IPV4_MROUTE_R,
764 #define RTNLGRP_IPV4_MROUTE_R	RTNLGRP_IPV4_MROUTE_R
765 	RTNLGRP_IPV6_MROUTE_R,
766 #define RTNLGRP_IPV6_MROUTE_R	RTNLGRP_IPV6_MROUTE_R
767 	RTNLGRP_NEXTHOP,
768 #define RTNLGRP_NEXTHOP		RTNLGRP_NEXTHOP
769 	RTNLGRP_BRVLAN,
770 #define RTNLGRP_BRVLAN		RTNLGRP_BRVLAN
771 	RTNLGRP_MCTP_IFADDR,
772 #define RTNLGRP_MCTP_IFADDR	RTNLGRP_MCTP_IFADDR
773 	RTNLGRP_TUNNEL,
774 #define RTNLGRP_TUNNEL		RTNLGRP_TUNNEL
775 	RTNLGRP_STATS,
776 #define RTNLGRP_STATS		RTNLGRP_STATS
777 	__RTNLGRP_MAX
778 };
779 #define RTNLGRP_MAX	(__RTNLGRP_MAX - 1)
780 
781 /* TC action piece */
782 struct tcamsg {
783 	unsigned char	tca_family;
784 	unsigned char	tca__pad1;
785 	unsigned short	tca__pad2;
786 };
787 
788 enum {
789 	TCA_ROOT_UNSPEC,
790 	TCA_ROOT_TAB,
791 #define TCA_ACT_TAB TCA_ROOT_TAB
792 #define TCAA_MAX TCA_ROOT_TAB
793 	TCA_ROOT_FLAGS,
794 	TCA_ROOT_COUNT,
795 	TCA_ROOT_TIME_DELTA, /* in msecs */
796 	TCA_ROOT_EXT_WARN_MSG,
797 	__TCA_ROOT_MAX,
798 #define	TCA_ROOT_MAX (__TCA_ROOT_MAX - 1)
799 };
800 
801 #define TA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
802 #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
803 /* tcamsg flags stored in attribute TCA_ROOT_FLAGS
804  *
805  * TCA_ACT_FLAG_LARGE_DUMP_ON user->kernel to request for larger than
806  * TCA_ACT_MAX_PRIO actions in a dump. All dump responses will contain the
807  * number of actions being dumped stored in for user app's consumption in
808  * TCA_ROOT_COUNT
809  *
810  * TCA_ACT_FLAG_TERSE_DUMP user->kernel to request terse (brief) dump that only
811  * includes essential action info (kind, index, etc.)
812  *
813  */
814 #define TCA_FLAG_LARGE_DUMP_ON		(1 << 0)
815 #define TCA_ACT_FLAG_LARGE_DUMP_ON	TCA_FLAG_LARGE_DUMP_ON
816 #define TCA_ACT_FLAG_TERSE_DUMP		(1 << 1)
817 
818 /* New extended info filters for IFLA_EXT_MASK */
819 #define RTEXT_FILTER_VF		(1 << 0)
820 #define RTEXT_FILTER_BRVLAN	(1 << 1)
821 #define RTEXT_FILTER_BRVLAN_COMPRESSED	(1 << 2)
822 #define	RTEXT_FILTER_SKIP_STATS	(1 << 3)
823 #define RTEXT_FILTER_MRP	(1 << 4)
824 #define RTEXT_FILTER_CFM_CONFIG	(1 << 5)
825 #define RTEXT_FILTER_CFM_STATUS	(1 << 6)
826 #define RTEXT_FILTER_MST	(1 << 7)
827 
828 /* End of information exported to user level */
829 
830 
831 
832 #endif /* _UAPI__LINUX_RTNETLINK_H */
833