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