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