Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef __LINUX_RTNETLINK_H |
2 | #define __LINUX_RTNETLINK_H | |
3 | ||
4 | #include <linux/netlink.h> | |
5 | ||
6 | /**** | |
7 | * Routing/neighbour discovery messages. | |
8 | ****/ | |
9 | ||
10 | /* Types of messages */ | |
11 | ||
12 | enum { | |
13 | RTM_BASE = 16, | |
14 | #define RTM_BASE RTM_BASE | |
15 | ||
16 | RTM_NEWLINK = 16, | |
17 | #define RTM_NEWLINK RTM_NEWLINK | |
18 | RTM_DELLINK, | |
19 | #define RTM_DELLINK RTM_DELLINK | |
20 | RTM_GETLINK, | |
21 | #define RTM_GETLINK RTM_GETLINK | |
22 | RTM_SETLINK, | |
23 | #define RTM_SETLINK RTM_SETLINK | |
24 | ||
25 | RTM_NEWADDR = 20, | |
26 | #define RTM_NEWADDR RTM_NEWADDR | |
27 | RTM_DELADDR, | |
28 | #define RTM_DELADDR RTM_DELADDR | |
29 | RTM_GETADDR, | |
30 | #define RTM_GETADDR RTM_GETADDR | |
31 | ||
32 | RTM_NEWROUTE = 24, | |
33 | #define RTM_NEWROUTE RTM_NEWROUTE | |
34 | RTM_DELROUTE, | |
35 | #define RTM_DELROUTE RTM_DELROUTE | |
36 | RTM_GETROUTE, | |
37 | #define RTM_GETROUTE RTM_GETROUTE | |
38 | ||
39 | RTM_NEWNEIGH = 28, | |
40 | #define RTM_NEWNEIGH RTM_NEWNEIGH | |
41 | RTM_DELNEIGH, | |
42 | #define RTM_DELNEIGH RTM_DELNEIGH | |
43 | RTM_GETNEIGH, | |
44 | #define RTM_GETNEIGH RTM_GETNEIGH | |
45 | ||
46 | RTM_NEWRULE = 32, | |
47 | #define RTM_NEWRULE RTM_NEWRULE | |
48 | RTM_DELRULE, | |
49 | #define RTM_DELRULE RTM_DELRULE | |
50 | RTM_GETRULE, | |
51 | #define RTM_GETRULE RTM_GETRULE | |
52 | ||
53 | RTM_NEWQDISC = 36, | |
54 | #define RTM_NEWQDISC RTM_NEWQDISC | |
55 | RTM_DELQDISC, | |
56 | #define RTM_DELQDISC RTM_DELQDISC | |
57 | RTM_GETQDISC, | |
58 | #define RTM_GETQDISC RTM_GETQDISC | |
59 | ||
60 | RTM_NEWTCLASS = 40, | |
61 | #define RTM_NEWTCLASS RTM_NEWTCLASS | |
62 | RTM_DELTCLASS, | |
63 | #define RTM_DELTCLASS RTM_DELTCLASS | |
64 | RTM_GETTCLASS, | |
65 | #define RTM_GETTCLASS RTM_GETTCLASS | |
66 | ||
67 | RTM_NEWTFILTER = 44, | |
68 | #define RTM_NEWTFILTER RTM_NEWTFILTER | |
69 | RTM_DELTFILTER, | |
70 | #define RTM_DELTFILTER RTM_DELTFILTER | |
71 | RTM_GETTFILTER, | |
72 | #define RTM_GETTFILTER RTM_GETTFILTER | |
73 | ||
74 | RTM_NEWACTION = 48, | |
75 | #define RTM_NEWACTION RTM_NEWACTION | |
76 | RTM_DELACTION, | |
77 | #define RTM_DELACTION RTM_DELACTION | |
78 | RTM_GETACTION, | |
79 | #define RTM_GETACTION RTM_GETACTION | |
80 | ||
81 | RTM_NEWPREFIX = 52, | |
82 | #define RTM_NEWPREFIX RTM_NEWPREFIX | |
83 | RTM_GETPREFIX = 54, | |
84 | #define RTM_GETPREFIX RTM_GETPREFIX | |
85 | ||
86 | RTM_GETMULTICAST = 58, | |
87 | #define RTM_GETMULTICAST RTM_GETMULTICAST | |
88 | ||
89 | RTM_GETANYCAST = 62, | |
90 | #define RTM_GETANYCAST RTM_GETANYCAST | |
91 | ||
c7fb64db TG |
92 | RTM_NEWNEIGHTBL = 64, |
93 | #define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL | |
94 | RTM_GETNEIGHTBL = 66, | |
95 | #define RTM_GETNEIGHTBL RTM_GETNEIGHTBL | |
96 | RTM_SETNEIGHTBL, | |
97 | #define RTM_SETNEIGHTBL RTM_SETNEIGHTBL | |
98 | ||
d775fc09 TG |
99 | __RTM_MAX, |
100 | #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) | |
1da177e4 LT |
101 | }; |
102 | ||
db46edc6 TG |
103 | #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) |
104 | #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2) | |
f90a0a74 TG |
105 | #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) |
106 | ||
1da177e4 LT |
107 | /* |
108 | Generic structure for encapsulation of optional route information. | |
109 | It is reminiscent of sockaddr, but with sa_family replaced | |
110 | with attribute type. | |
111 | */ | |
112 | ||
113 | struct rtattr | |
114 | { | |
115 | unsigned short rta_len; | |
116 | unsigned short rta_type; | |
117 | }; | |
118 | ||
119 | /* Macros to handle rtattributes */ | |
120 | ||
121 | #define RTA_ALIGNTO 4 | |
122 | #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) ) | |
123 | #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ | |
124 | (rta)->rta_len >= sizeof(struct rtattr) && \ | |
125 | (rta)->rta_len <= (len)) | |
126 | #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ | |
127 | (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len))) | |
128 | #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len)) | |
129 | #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) | |
130 | #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0))) | |
131 | #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) | |
132 | ||
133 | ||
134 | ||
135 | ||
136 | /****************************************************************************** | |
137 | * Definitions used in routing table administration. | |
138 | ****/ | |
139 | ||
140 | struct rtmsg | |
141 | { | |
142 | unsigned char rtm_family; | |
143 | unsigned char rtm_dst_len; | |
144 | unsigned char rtm_src_len; | |
145 | unsigned char rtm_tos; | |
146 | ||
147 | unsigned char rtm_table; /* Routing table id */ | |
148 | unsigned char rtm_protocol; /* Routing protocol; see below */ | |
149 | unsigned char rtm_scope; /* See below */ | |
150 | unsigned char rtm_type; /* See below */ | |
151 | ||
152 | unsigned rtm_flags; | |
153 | }; | |
154 | ||
155 | /* rtm_type */ | |
156 | ||
157 | enum | |
158 | { | |
159 | RTN_UNSPEC, | |
160 | RTN_UNICAST, /* Gateway or direct route */ | |
161 | RTN_LOCAL, /* Accept locally */ | |
162 | RTN_BROADCAST, /* Accept locally as broadcast, | |
163 | send as broadcast */ | |
164 | RTN_ANYCAST, /* Accept locally as broadcast, | |
165 | but send as unicast */ | |
166 | RTN_MULTICAST, /* Multicast route */ | |
167 | RTN_BLACKHOLE, /* Drop */ | |
168 | RTN_UNREACHABLE, /* Destination is unreachable */ | |
169 | RTN_PROHIBIT, /* Administratively prohibited */ | |
170 | RTN_THROW, /* Not in this table */ | |
171 | RTN_NAT, /* Translate this address */ | |
172 | RTN_XRESOLVE, /* Use external resolver */ | |
173 | __RTN_MAX | |
174 | }; | |
175 | ||
176 | #define RTN_MAX (__RTN_MAX - 1) | |
177 | ||
178 | ||
179 | /* rtm_protocol */ | |
180 | ||
181 | #define RTPROT_UNSPEC 0 | |
182 | #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; | |
183 | not used by current IPv4 */ | |
184 | #define RTPROT_KERNEL 2 /* Route installed by kernel */ | |
185 | #define RTPROT_BOOT 3 /* Route installed during boot */ | |
186 | #define RTPROT_STATIC 4 /* Route installed by administrator */ | |
187 | ||
188 | /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; | |
189 | they are just passed from user and back as is. | |
190 | It will be used by hypothetical multiple routing daemons. | |
191 | Note that protocol values should be standardized in order to | |
192 | avoid conflicts. | |
193 | */ | |
194 | ||
195 | #define RTPROT_GATED 8 /* Apparently, GateD */ | |
196 | #define RTPROT_RA 9 /* RDISC/ND router advertisements */ | |
197 | #define RTPROT_MRT 10 /* Merit MRT */ | |
198 | #define RTPROT_ZEBRA 11 /* Zebra */ | |
199 | #define RTPROT_BIRD 12 /* BIRD */ | |
200 | #define RTPROT_DNROUTED 13 /* DECnet routing daemon */ | |
201 | #define RTPROT_XORP 14 /* XORP */ | |
202 | ||
203 | /* rtm_scope | |
204 | ||
205 | Really it is not scope, but sort of distance to the destination. | |
206 | NOWHERE are reserved for not existing destinations, HOST is our | |
207 | local addresses, LINK are destinations, located on directly attached | |
208 | link and UNIVERSE is everywhere in the Universe. | |
209 | ||
210 | Intermediate values are also possible f.e. interior routes | |
211 | could be assigned a value between UNIVERSE and LINK. | |
212 | */ | |
213 | ||
214 | enum rt_scope_t | |
215 | { | |
216 | RT_SCOPE_UNIVERSE=0, | |
217 | /* User defined values */ | |
218 | RT_SCOPE_SITE=200, | |
219 | RT_SCOPE_LINK=253, | |
220 | RT_SCOPE_HOST=254, | |
221 | RT_SCOPE_NOWHERE=255 | |
222 | }; | |
223 | ||
224 | /* rtm_flags */ | |
225 | ||
226 | #define RTM_F_NOTIFY 0x100 /* Notify user of route change */ | |
227 | #define RTM_F_CLONED 0x200 /* This route is cloned */ | |
228 | #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ | |
229 | #define RTM_F_PREFIX 0x800 /* Prefix addresses */ | |
230 | ||
231 | /* Reserved table identifiers */ | |
232 | ||
233 | enum rt_class_t | |
234 | { | |
235 | RT_TABLE_UNSPEC=0, | |
236 | /* User defined values */ | |
237 | RT_TABLE_DEFAULT=253, | |
238 | RT_TABLE_MAIN=254, | |
239 | RT_TABLE_LOCAL=255, | |
240 | __RT_TABLE_MAX | |
241 | }; | |
242 | #define RT_TABLE_MAX (__RT_TABLE_MAX - 1) | |
243 | ||
244 | ||
245 | ||
246 | /* Routing message attributes */ | |
247 | ||
248 | enum rtattr_type_t | |
249 | { | |
250 | RTA_UNSPEC, | |
251 | RTA_DST, | |
252 | RTA_SRC, | |
253 | RTA_IIF, | |
254 | RTA_OIF, | |
255 | RTA_GATEWAY, | |
256 | RTA_PRIORITY, | |
257 | RTA_PREFSRC, | |
258 | RTA_METRICS, | |
259 | RTA_MULTIPATH, | |
260 | RTA_PROTOINFO, | |
261 | RTA_FLOW, | |
262 | RTA_CACHEINFO, | |
263 | RTA_SESSION, | |
264 | RTA_MP_ALGO, | |
265 | __RTA_MAX | |
266 | }; | |
267 | ||
268 | #define RTA_MAX (__RTA_MAX - 1) | |
269 | ||
270 | #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg)))) | |
271 | #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) | |
272 | ||
273 | /* RTM_MULTIPATH --- array of struct rtnexthop. | |
274 | * | |
275 | * "struct rtnexthop" describes all necessary nexthop information, | |
276 | * i.e. parameters of path to a destination via this nexthop. | |
277 | * | |
278 | * At the moment it is impossible to set different prefsrc, mtu, window | |
279 | * and rtt for different paths from multipath. | |
280 | */ | |
281 | ||
282 | struct rtnexthop | |
283 | { | |
284 | unsigned short rtnh_len; | |
285 | unsigned char rtnh_flags; | |
286 | unsigned char rtnh_hops; | |
287 | int rtnh_ifindex; | |
288 | }; | |
289 | ||
290 | /* rtnh_flags */ | |
291 | ||
292 | #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ | |
293 | #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ | |
294 | #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ | |
295 | ||
296 | /* Macros to handle hexthops */ | |
297 | ||
298 | #define RTNH_ALIGNTO 4 | |
299 | #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) ) | |
300 | #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ | |
301 | ((int)(rtnh)->rtnh_len) <= (len)) | |
302 | #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len))) | |
303 | #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len)) | |
304 | #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len)) | |
305 | #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) | |
306 | ||
307 | /* RTM_CACHEINFO */ | |
308 | ||
309 | struct rta_cacheinfo | |
310 | { | |
311 | __u32 rta_clntref; | |
312 | __u32 rta_lastuse; | |
313 | __s32 rta_expires; | |
314 | __u32 rta_error; | |
315 | __u32 rta_used; | |
316 | ||
317 | #define RTNETLINK_HAVE_PEERINFO 1 | |
318 | __u32 rta_id; | |
319 | __u32 rta_ts; | |
320 | __u32 rta_tsage; | |
321 | }; | |
322 | ||
323 | /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ | |
324 | ||
325 | enum | |
326 | { | |
327 | RTAX_UNSPEC, | |
328 | #define RTAX_UNSPEC RTAX_UNSPEC | |
329 | RTAX_LOCK, | |
330 | #define RTAX_LOCK RTAX_LOCK | |
331 | RTAX_MTU, | |
332 | #define RTAX_MTU RTAX_MTU | |
333 | RTAX_WINDOW, | |
334 | #define RTAX_WINDOW RTAX_WINDOW | |
335 | RTAX_RTT, | |
336 | #define RTAX_RTT RTAX_RTT | |
337 | RTAX_RTTVAR, | |
338 | #define RTAX_RTTVAR RTAX_RTTVAR | |
339 | RTAX_SSTHRESH, | |
340 | #define RTAX_SSTHRESH RTAX_SSTHRESH | |
341 | RTAX_CWND, | |
342 | #define RTAX_CWND RTAX_CWND | |
343 | RTAX_ADVMSS, | |
344 | #define RTAX_ADVMSS RTAX_ADVMSS | |
345 | RTAX_REORDERING, | |
346 | #define RTAX_REORDERING RTAX_REORDERING | |
347 | RTAX_HOPLIMIT, | |
348 | #define RTAX_HOPLIMIT RTAX_HOPLIMIT | |
349 | RTAX_INITCWND, | |
350 | #define RTAX_INITCWND RTAX_INITCWND | |
351 | RTAX_FEATURES, | |
352 | #define RTAX_FEATURES RTAX_FEATURES | |
353 | __RTAX_MAX | |
354 | }; | |
355 | ||
356 | #define RTAX_MAX (__RTAX_MAX - 1) | |
357 | ||
358 | #define RTAX_FEATURE_ECN 0x00000001 | |
359 | #define RTAX_FEATURE_SACK 0x00000002 | |
360 | #define RTAX_FEATURE_TIMESTAMP 0x00000004 | |
361 | #define RTAX_FEATURE_ALLFRAG 0x00000008 | |
362 | ||
363 | struct rta_session | |
364 | { | |
365 | __u8 proto; | |
366 | ||
367 | union { | |
368 | struct { | |
369 | __u16 sport; | |
370 | __u16 dport; | |
371 | } ports; | |
372 | ||
373 | struct { | |
374 | __u8 type; | |
375 | __u8 code; | |
376 | __u16 ident; | |
377 | } icmpt; | |
378 | ||
379 | __u32 spi; | |
380 | } u; | |
381 | }; | |
382 | ||
383 | ||
384 | /********************************************************* | |
385 | * Interface address. | |
386 | ****/ | |
387 | ||
388 | struct ifaddrmsg | |
389 | { | |
390 | unsigned char ifa_family; | |
391 | unsigned char ifa_prefixlen; /* The prefix length */ | |
392 | unsigned char ifa_flags; /* Flags */ | |
393 | unsigned char ifa_scope; /* See above */ | |
394 | int ifa_index; /* Link index */ | |
395 | }; | |
396 | ||
397 | enum | |
398 | { | |
399 | IFA_UNSPEC, | |
400 | IFA_ADDRESS, | |
401 | IFA_LOCAL, | |
402 | IFA_LABEL, | |
403 | IFA_BROADCAST, | |
404 | IFA_ANYCAST, | |
405 | IFA_CACHEINFO, | |
406 | IFA_MULTICAST, | |
407 | __IFA_MAX | |
408 | }; | |
409 | ||
410 | #define IFA_MAX (__IFA_MAX - 1) | |
411 | ||
412 | /* ifa_flags */ | |
413 | ||
414 | #define IFA_F_SECONDARY 0x01 | |
415 | #define IFA_F_TEMPORARY IFA_F_SECONDARY | |
416 | ||
417 | #define IFA_F_DEPRECATED 0x20 | |
418 | #define IFA_F_TENTATIVE 0x40 | |
419 | #define IFA_F_PERMANENT 0x80 | |
420 | ||
421 | struct ifa_cacheinfo | |
422 | { | |
423 | __u32 ifa_prefered; | |
424 | __u32 ifa_valid; | |
425 | __u32 cstamp; /* created timestamp, hundredths of seconds */ | |
426 | __u32 tstamp; /* updated timestamp, hundredths of seconds */ | |
427 | }; | |
428 | ||
429 | ||
430 | #define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) | |
431 | #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) | |
432 | ||
433 | /* | |
434 | Important comment: | |
435 | IFA_ADDRESS is prefix address, rather than local interface address. | |
436 | It makes no difference for normally configured broadcast interfaces, | |
437 | but for point-to-point IFA_ADDRESS is DESTINATION address, | |
438 | local address is supplied in IFA_LOCAL attribute. | |
439 | */ | |
440 | ||
441 | /************************************************************** | |
442 | * Neighbour discovery. | |
443 | ****/ | |
444 | ||
445 | struct ndmsg | |
446 | { | |
447 | unsigned char ndm_family; | |
448 | unsigned char ndm_pad1; | |
449 | unsigned short ndm_pad2; | |
450 | int ndm_ifindex; /* Link index */ | |
451 | __u16 ndm_state; | |
452 | __u8 ndm_flags; | |
453 | __u8 ndm_type; | |
454 | }; | |
455 | ||
456 | enum | |
457 | { | |
458 | NDA_UNSPEC, | |
459 | NDA_DST, | |
460 | NDA_LLADDR, | |
461 | NDA_CACHEINFO, | |
462 | NDA_PROBES, | |
463 | __NDA_MAX | |
464 | }; | |
465 | ||
466 | #define NDA_MAX (__NDA_MAX - 1) | |
467 | ||
468 | #define NDA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg)))) | |
469 | #define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg)) | |
470 | ||
471 | /* | |
472 | * Neighbor Cache Entry Flags | |
473 | */ | |
474 | ||
475 | #define NTF_PROXY 0x08 /* == ATF_PUBL */ | |
476 | #define NTF_ROUTER 0x80 | |
477 | ||
478 | /* | |
479 | * Neighbor Cache Entry States. | |
480 | */ | |
481 | ||
482 | #define NUD_INCOMPLETE 0x01 | |
483 | #define NUD_REACHABLE 0x02 | |
484 | #define NUD_STALE 0x04 | |
485 | #define NUD_DELAY 0x08 | |
486 | #define NUD_PROBE 0x10 | |
487 | #define NUD_FAILED 0x20 | |
488 | ||
489 | /* Dummy states */ | |
490 | #define NUD_NOARP 0x40 | |
491 | #define NUD_PERMANENT 0x80 | |
492 | #define NUD_NONE 0x00 | |
493 | ||
494 | ||
495 | struct nda_cacheinfo | |
496 | { | |
497 | __u32 ndm_confirmed; | |
498 | __u32 ndm_used; | |
499 | __u32 ndm_updated; | |
500 | __u32 ndm_refcnt; | |
501 | }; | |
502 | ||
c7fb64db TG |
503 | |
504 | /***************************************************************** | |
505 | * Neighbour tables specific messages. | |
506 | * | |
507 | * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the | |
508 | * NLM_F_DUMP flag set. Every neighbour table configuration is | |
509 | * spread over multiple messages to avoid running into message | |
510 | * size limits on systems with many interfaces. The first message | |
511 | * in the sequence transports all not device specific data such as | |
512 | * statistics, configuration, and the default parameter set. | |
513 | * This message is followed by 0..n messages carrying device | |
514 | * specific parameter sets. | |
515 | * Although the ordering should be sufficient, NDTA_NAME can be | |
516 | * used to identify sequences. The initial message can be identified | |
517 | * by checking for NDTA_CONFIG. The device specific messages do | |
518 | * not contain this TLV but have NDTPA_IFINDEX set to the | |
519 | * corresponding interface index. | |
520 | * | |
521 | * To change neighbour table attributes, send RTM_SETNEIGHTBL | |
522 | * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], | |
523 | * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked | |
524 | * otherwise. Device specific parameter sets can be changed by | |
525 | * setting NDTPA_IFINDEX to the interface index of the corresponding | |
526 | * device. | |
527 | ****/ | |
528 | ||
529 | struct ndt_stats | |
530 | { | |
531 | __u64 ndts_allocs; | |
532 | __u64 ndts_destroys; | |
533 | __u64 ndts_hash_grows; | |
534 | __u64 ndts_res_failed; | |
535 | __u64 ndts_lookups; | |
536 | __u64 ndts_hits; | |
537 | __u64 ndts_rcv_probes_mcast; | |
538 | __u64 ndts_rcv_probes_ucast; | |
539 | __u64 ndts_periodic_gc_runs; | |
540 | __u64 ndts_forced_gc_runs; | |
541 | }; | |
542 | ||
543 | enum { | |
544 | NDTPA_UNSPEC, | |
545 | NDTPA_IFINDEX, /* u32, unchangeable */ | |
546 | NDTPA_REFCNT, /* u32, read-only */ | |
547 | NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ | |
548 | NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ | |
549 | NDTPA_RETRANS_TIME, /* u64, msecs */ | |
550 | NDTPA_GC_STALETIME, /* u64, msecs */ | |
551 | NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ | |
552 | NDTPA_QUEUE_LEN, /* u32 */ | |
553 | NDTPA_APP_PROBES, /* u32 */ | |
554 | NDTPA_UCAST_PROBES, /* u32 */ | |
555 | NDTPA_MCAST_PROBES, /* u32 */ | |
556 | NDTPA_ANYCAST_DELAY, /* u64, msecs */ | |
557 | NDTPA_PROXY_DELAY, /* u64, msecs */ | |
558 | NDTPA_PROXY_QLEN, /* u32 */ | |
559 | NDTPA_LOCKTIME, /* u64, msecs */ | |
560 | __NDTPA_MAX | |
561 | }; | |
562 | #define NDTPA_MAX (__NDTPA_MAX - 1) | |
563 | ||
564 | struct ndtmsg | |
565 | { | |
566 | __u8 ndtm_family; | |
567 | __u8 ndtm_pad1; | |
568 | __u16 ndtm_pad2; | |
569 | }; | |
570 | ||
571 | struct ndt_config | |
572 | { | |
573 | __u16 ndtc_key_len; | |
574 | __u16 ndtc_entry_size; | |
575 | __u32 ndtc_entries; | |
576 | __u32 ndtc_last_flush; /* delta to now in msecs */ | |
577 | __u32 ndtc_last_rand; /* delta to now in msecs */ | |
578 | __u32 ndtc_hash_rnd; | |
579 | __u32 ndtc_hash_mask; | |
580 | __u32 ndtc_hash_chain_gc; | |
581 | __u32 ndtc_proxy_qlen; | |
582 | }; | |
583 | ||
584 | enum { | |
585 | NDTA_UNSPEC, | |
586 | NDTA_NAME, /* char *, unchangeable */ | |
587 | NDTA_THRESH1, /* u32 */ | |
588 | NDTA_THRESH2, /* u32 */ | |
589 | NDTA_THRESH3, /* u32 */ | |
590 | NDTA_CONFIG, /* struct ndt_config, read-only */ | |
591 | NDTA_PARMS, /* nested TLV NDTPA_* */ | |
592 | NDTA_STATS, /* struct ndt_stats, read-only */ | |
593 | NDTA_GC_INTERVAL, /* u64, msecs */ | |
594 | __NDTA_MAX | |
595 | }; | |
596 | #define NDTA_MAX (__NDTA_MAX - 1) | |
597 | ||
598 | #define NDTA_RTA(r) ((struct rtattr*)(((char*)(r)) + \ | |
599 | NLMSG_ALIGN(sizeof(struct ndtmsg)))) | |
600 | #define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg)) | |
601 | ||
602 | ||
1da177e4 LT |
603 | /**** |
604 | * General form of address family dependent message. | |
605 | ****/ | |
606 | ||
607 | struct rtgenmsg | |
608 | { | |
609 | unsigned char rtgen_family; | |
610 | }; | |
611 | ||
612 | /***************************************************************** | |
613 | * Link layer specific messages. | |
614 | ****/ | |
615 | ||
616 | /* struct ifinfomsg | |
617 | * passes link level specific information, not dependent | |
618 | * on network protocol. | |
619 | */ | |
620 | ||
621 | struct ifinfomsg | |
622 | { | |
623 | unsigned char ifi_family; | |
624 | unsigned char __ifi_pad; | |
625 | unsigned short ifi_type; /* ARPHRD_* */ | |
626 | int ifi_index; /* Link index */ | |
627 | unsigned ifi_flags; /* IFF_* flags */ | |
628 | unsigned ifi_change; /* IFF_* change mask */ | |
629 | }; | |
630 | ||
631 | /******************************************************************** | |
632 | * prefix information | |
633 | ****/ | |
634 | ||
635 | struct prefixmsg | |
636 | { | |
637 | unsigned char prefix_family; | |
638 | int prefix_ifindex; | |
639 | unsigned char prefix_type; | |
640 | unsigned char prefix_len; | |
641 | unsigned char prefix_flags; | |
642 | }; | |
643 | ||
644 | enum | |
645 | { | |
646 | PREFIX_UNSPEC, | |
647 | PREFIX_ADDRESS, | |
648 | PREFIX_CACHEINFO, | |
649 | __PREFIX_MAX | |
650 | }; | |
651 | ||
652 | #define PREFIX_MAX (__PREFIX_MAX - 1) | |
653 | ||
654 | struct prefix_cacheinfo | |
655 | { | |
656 | __u32 preferred_time; | |
657 | __u32 valid_time; | |
658 | }; | |
659 | ||
660 | /* The struct should be in sync with struct net_device_stats */ | |
661 | struct rtnl_link_stats | |
662 | { | |
663 | __u32 rx_packets; /* total packets received */ | |
664 | __u32 tx_packets; /* total packets transmitted */ | |
665 | __u32 rx_bytes; /* total bytes received */ | |
666 | __u32 tx_bytes; /* total bytes transmitted */ | |
667 | __u32 rx_errors; /* bad packets received */ | |
668 | __u32 tx_errors; /* packet transmit problems */ | |
669 | __u32 rx_dropped; /* no space in linux buffers */ | |
670 | __u32 tx_dropped; /* no space available in linux */ | |
671 | __u32 multicast; /* multicast packets received */ | |
672 | __u32 collisions; | |
673 | ||
674 | /* detailed rx_errors: */ | |
675 | __u32 rx_length_errors; | |
676 | __u32 rx_over_errors; /* receiver ring buff overflow */ | |
677 | __u32 rx_crc_errors; /* recved pkt with crc error */ | |
678 | __u32 rx_frame_errors; /* recv'd frame alignment error */ | |
679 | __u32 rx_fifo_errors; /* recv'r fifo overrun */ | |
680 | __u32 rx_missed_errors; /* receiver missed packet */ | |
681 | ||
682 | /* detailed tx_errors */ | |
683 | __u32 tx_aborted_errors; | |
684 | __u32 tx_carrier_errors; | |
685 | __u32 tx_fifo_errors; | |
686 | __u32 tx_heartbeat_errors; | |
687 | __u32 tx_window_errors; | |
688 | ||
689 | /* for cslip etc */ | |
690 | __u32 rx_compressed; | |
691 | __u32 tx_compressed; | |
692 | }; | |
693 | ||
694 | /* The struct should be in sync with struct ifmap */ | |
695 | struct rtnl_link_ifmap | |
696 | { | |
697 | __u64 mem_start; | |
698 | __u64 mem_end; | |
699 | __u64 base_addr; | |
700 | __u16 irq; | |
701 | __u8 dma; | |
702 | __u8 port; | |
703 | }; | |
704 | ||
705 | enum | |
706 | { | |
707 | IFLA_UNSPEC, | |
708 | IFLA_ADDRESS, | |
709 | IFLA_BROADCAST, | |
710 | IFLA_IFNAME, | |
711 | IFLA_MTU, | |
712 | IFLA_LINK, | |
713 | IFLA_QDISC, | |
714 | IFLA_STATS, | |
715 | IFLA_COST, | |
716 | #define IFLA_COST IFLA_COST | |
717 | IFLA_PRIORITY, | |
718 | #define IFLA_PRIORITY IFLA_PRIORITY | |
719 | IFLA_MASTER, | |
720 | #define IFLA_MASTER IFLA_MASTER | |
721 | IFLA_WIRELESS, /* Wireless Extension event - see wireless.h */ | |
722 | #define IFLA_WIRELESS IFLA_WIRELESS | |
723 | IFLA_PROTINFO, /* Protocol specific information for a link */ | |
724 | #define IFLA_PROTINFO IFLA_PROTINFO | |
725 | IFLA_TXQLEN, | |
726 | #define IFLA_TXQLEN IFLA_TXQLEN | |
727 | IFLA_MAP, | |
728 | #define IFLA_MAP IFLA_MAP | |
729 | IFLA_WEIGHT, | |
730 | #define IFLA_WEIGHT IFLA_WEIGHT | |
731 | __IFLA_MAX | |
732 | }; | |
733 | ||
734 | ||
735 | #define IFLA_MAX (__IFLA_MAX - 1) | |
736 | ||
737 | #define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg)))) | |
738 | #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg)) | |
739 | ||
740 | /* ifi_flags. | |
741 | ||
742 | IFF_* flags. | |
743 | ||
744 | The only change is: | |
745 | IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are | |
746 | more not changeable by user. They describe link media | |
747 | characteristics and set by device driver. | |
748 | ||
749 | Comments: | |
750 | - Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid | |
751 | - If neither of these three flags are set; | |
752 | the interface is NBMA. | |
753 | ||
754 | - IFF_MULTICAST does not mean anything special: | |
755 | multicasts can be used on all not-NBMA links. | |
756 | IFF_MULTICAST means that this media uses special encapsulation | |
757 | for multicast frames. Apparently, all IFF_POINTOPOINT and | |
758 | IFF_BROADCAST devices are able to use multicasts too. | |
759 | */ | |
760 | ||
761 | /* IFLA_LINK. | |
762 | For usual devices it is equal ifi_index. | |
763 | If it is a "virtual interface" (f.e. tunnel), ifi_link | |
764 | can point to real physical interface (f.e. for bandwidth calculations), | |
765 | or maybe 0, what means, that real media is unknown (usual | |
766 | for IPIP tunnels, when route to endpoint is allowed to change) | |
767 | */ | |
768 | ||
769 | /* Subtype attributes for IFLA_PROTINFO */ | |
770 | enum | |
771 | { | |
772 | IFLA_INET6_UNSPEC, | |
773 | IFLA_INET6_FLAGS, /* link flags */ | |
774 | IFLA_INET6_CONF, /* sysctl parameters */ | |
775 | IFLA_INET6_STATS, /* statistics */ | |
776 | IFLA_INET6_MCAST, /* MC things. What of them? */ | |
777 | IFLA_INET6_CACHEINFO, /* time values and max reasm size */ | |
778 | __IFLA_INET6_MAX | |
779 | }; | |
780 | ||
781 | #define IFLA_INET6_MAX (__IFLA_INET6_MAX - 1) | |
782 | ||
783 | struct ifla_cacheinfo | |
784 | { | |
785 | __u32 max_reasm_len; | |
786 | __u32 tstamp; /* ipv6InterfaceTable updated timestamp */ | |
787 | __u32 reachable_time; | |
788 | __u32 retrans_time; | |
789 | }; | |
790 | ||
791 | /***************************************************************** | |
792 | * Traffic control messages. | |
793 | ****/ | |
794 | ||
795 | struct tcmsg | |
796 | { | |
797 | unsigned char tcm_family; | |
798 | unsigned char tcm__pad1; | |
799 | unsigned short tcm__pad2; | |
800 | int tcm_ifindex; | |
801 | __u32 tcm_handle; | |
802 | __u32 tcm_parent; | |
803 | __u32 tcm_info; | |
804 | }; | |
805 | ||
806 | enum | |
807 | { | |
808 | TCA_UNSPEC, | |
809 | TCA_KIND, | |
810 | TCA_OPTIONS, | |
811 | TCA_STATS, | |
812 | TCA_XSTATS, | |
813 | TCA_RATE, | |
814 | TCA_FCNT, | |
815 | TCA_STATS2, | |
816 | __TCA_MAX | |
817 | }; | |
818 | ||
819 | #define TCA_MAX (__TCA_MAX - 1) | |
820 | ||
821 | #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg)))) | |
822 | #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg)) | |
823 | ||
824 | ||
825 | /* RTnetlink multicast groups */ | |
826 | ||
827 | #define RTMGRP_LINK 1 | |
828 | #define RTMGRP_NOTIFY 2 | |
829 | #define RTMGRP_NEIGH 4 | |
830 | #define RTMGRP_TC 8 | |
831 | ||
832 | #define RTMGRP_IPV4_IFADDR 0x10 | |
833 | #define RTMGRP_IPV4_MROUTE 0x20 | |
834 | #define RTMGRP_IPV4_ROUTE 0x40 | |
835 | ||
836 | #define RTMGRP_IPV6_IFADDR 0x100 | |
837 | #define RTMGRP_IPV6_MROUTE 0x200 | |
838 | #define RTMGRP_IPV6_ROUTE 0x400 | |
839 | #define RTMGRP_IPV6_IFINFO 0x800 | |
840 | ||
841 | #define RTMGRP_DECnet_IFADDR 0x1000 | |
842 | #define RTMGRP_DECnet_ROUTE 0x4000 | |
843 | ||
844 | #define RTMGRP_IPV6_PREFIX 0x20000 | |
845 | ||
846 | /* TC action piece */ | |
847 | struct tcamsg | |
848 | { | |
849 | unsigned char tca_family; | |
850 | unsigned char tca__pad1; | |
851 | unsigned short tca__pad2; | |
852 | }; | |
853 | #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg)))) | |
854 | #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg)) | |
855 | #define TCA_ACT_TAB 1 /* attr type must be >=1 */ | |
856 | #define TCAA_MAX 1 | |
857 | ||
858 | /* End of information exported to user level */ | |
859 | ||
860 | #ifdef __KERNEL__ | |
861 | ||
862 | #include <linux/config.h> | |
863 | ||
864 | extern size_t rtattr_strlcpy(char *dest, const struct rtattr *rta, size_t size); | |
865 | static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str) | |
866 | { | |
867 | int len = strlen(str) + 1; | |
868 | return len > rta->rta_len || memcmp(RTA_DATA(rta), str, len); | |
869 | } | |
870 | ||
871 | extern int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len); | |
872 | ||
873 | #define rtattr_parse_nested(tb, max, rta) \ | |
874 | rtattr_parse((tb), (max), RTA_DATA((rta)), RTA_PAYLOAD((rta))) | |
875 | ||
876 | extern struct sock *rtnl; | |
877 | ||
878 | struct rtnetlink_link | |
879 | { | |
880 | int (*doit)(struct sk_buff *, struct nlmsghdr*, void *attr); | |
881 | int (*dumpit)(struct sk_buff *, struct netlink_callback *cb); | |
882 | }; | |
883 | ||
884 | extern struct rtnetlink_link * rtnetlink_links[NPROTO]; | |
885 | extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo); | |
886 | extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); | |
887 | ||
888 | extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data); | |
889 | ||
890 | #define RTA_PUT(skb, attrtype, attrlen, data) \ | |
891 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
892 | goto rtattr_failure; \ | |
893 | __rta_fill(skb, attrtype, attrlen, data); }) | |
894 | ||
895 | #define RTA_PUT_NOHDR(skb, attrlen, data) \ | |
896 | ({ if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \ | |
897 | goto rtattr_failure; \ | |
898 | memcpy(skb_put(skb, RTA_ALIGN(attrlen)), data, attrlen); }) | |
00768244 TG |
899 | |
900 | #define RTA_PUT_U32(skb, attrtype, value) \ | |
901 | ({ u32 _tmp = (value); \ | |
902 | RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); }) | |
903 | ||
904 | #define RTA_PUT_U64(skb, attrtype, value) \ | |
905 | ({ u64 _tmp = (value); \ | |
906 | RTA_PUT(skb, attrtype, sizeof(u64), &_tmp); }) | |
907 | ||
908 | #define RTA_PUT_SECS(skb, attrtype, value) \ | |
909 | RTA_PUT_U64(skb, attrtype, (value) / HZ) | |
910 | ||
911 | #define RTA_PUT_MSECS(skb, attrtype, value) \ | |
912 | RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value)) | |
913 | ||
914 | #define RTA_PUT_STRING(skb, attrtype, value) \ | |
915 | RTA_PUT(skb, attrtype, strlen(value) + 1, value) | |
916 | ||
917 | #define RTA_NEST(skb, type) \ | |
918 | ({ struct rtattr *__start = (struct rtattr *) (skb)->tail; \ | |
919 | RTA_PUT(skb, type, 0, NULL); \ | |
920 | __start; }) | |
921 | ||
922 | #define RTA_NEST_END(skb, start) \ | |
923 | ({ (start)->rta_len = ((skb)->tail - (unsigned char *) (start)); \ | |
924 | (skb)->len; }) | |
925 | ||
926 | #define RTA_NEST_CANCEL(skb, start) \ | |
c52a3f89 TG |
927 | ({ if (start) \ |
928 | skb_trim(skb, (unsigned char *) (start) - (skb)->data); \ | |
00768244 TG |
929 | -1; }) |
930 | ||
931 | #define RTA_GET_U32(rta) \ | |
932 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \ | |
933 | goto rtattr_failure; \ | |
934 | *(u32 *) RTA_DATA(rta); }) | |
935 | ||
936 | #define RTA_GET_U64(rta) \ | |
937 | ({ u64 _tmp; \ | |
938 | if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \ | |
939 | goto rtattr_failure; \ | |
940 | memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \ | |
941 | _tmp; }) | |
942 | ||
943 | #define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ) | |
944 | #define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta))) | |
1da177e4 LT |
945 | |
946 | static inline struct rtattr * | |
947 | __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) | |
948 | { | |
949 | struct rtattr *rta; | |
950 | int size = RTA_LENGTH(attrlen); | |
951 | ||
952 | rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size)); | |
953 | rta->rta_type = attrtype; | |
954 | rta->rta_len = size; | |
955 | return rta; | |
956 | } | |
957 | ||
958 | #define __RTA_PUT(skb, attrtype, attrlen) \ | |
959 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
960 | goto rtattr_failure; \ | |
961 | __rta_reserve(skb, attrtype, attrlen); }) | |
962 | ||
963 | extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change); | |
964 | ||
965 | extern struct semaphore rtnl_sem; | |
966 | ||
967 | #define rtnl_shlock() down(&rtnl_sem) | |
968 | #define rtnl_shlock_nowait() down_trylock(&rtnl_sem) | |
969 | ||
970 | #define rtnl_shunlock() do { up(&rtnl_sem); \ | |
971 | if (rtnl && rtnl->sk_receive_queue.qlen) \ | |
972 | rtnl->sk_data_ready(rtnl, 0); \ | |
973 | } while(0) | |
974 | ||
975 | extern void rtnl_lock(void); | |
976 | extern int rtnl_lock_interruptible(void); | |
977 | extern void rtnl_unlock(void); | |
978 | extern void rtnetlink_init(void); | |
979 | ||
980 | #define ASSERT_RTNL() do { \ | |
981 | if (unlikely(down_trylock(&rtnl_sem) == 0)) { \ | |
982 | up(&rtnl_sem); \ | |
983 | printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \ | |
984 | __FILE__, __LINE__); \ | |
985 | dump_stack(); \ | |
986 | } \ | |
987 | } while(0) | |
988 | ||
989 | #define BUG_TRAP(x) do { \ | |
990 | if (unlikely(!(x))) { \ | |
991 | printk(KERN_ERR "KERNEL: assertion (%s) failed at %s (%d)\n", \ | |
992 | #x, __FILE__ , __LINE__); \ | |
993 | } \ | |
994 | } while(0) | |
995 | ||
996 | #endif /* __KERNEL__ */ | |
997 | ||
998 | ||
999 | #endif /* __LINUX_RTNETLINK_H */ |