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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 | ||
d775fc09 TG |
92 | __RTM_MAX, |
93 | #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) | |
1da177e4 LT |
94 | }; |
95 | ||
96 | /* | |
97 | Generic structure for encapsulation of optional route information. | |
98 | It is reminiscent of sockaddr, but with sa_family replaced | |
99 | with attribute type. | |
100 | */ | |
101 | ||
102 | struct rtattr | |
103 | { | |
104 | unsigned short rta_len; | |
105 | unsigned short rta_type; | |
106 | }; | |
107 | ||
108 | /* Macros to handle rtattributes */ | |
109 | ||
110 | #define RTA_ALIGNTO 4 | |
111 | #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) ) | |
112 | #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ | |
113 | (rta)->rta_len >= sizeof(struct rtattr) && \ | |
114 | (rta)->rta_len <= (len)) | |
115 | #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ | |
116 | (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len))) | |
117 | #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len)) | |
118 | #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) | |
119 | #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0))) | |
120 | #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) | |
121 | ||
122 | ||
123 | ||
124 | ||
125 | /****************************************************************************** | |
126 | * Definitions used in routing table administration. | |
127 | ****/ | |
128 | ||
129 | struct rtmsg | |
130 | { | |
131 | unsigned char rtm_family; | |
132 | unsigned char rtm_dst_len; | |
133 | unsigned char rtm_src_len; | |
134 | unsigned char rtm_tos; | |
135 | ||
136 | unsigned char rtm_table; /* Routing table id */ | |
137 | unsigned char rtm_protocol; /* Routing protocol; see below */ | |
138 | unsigned char rtm_scope; /* See below */ | |
139 | unsigned char rtm_type; /* See below */ | |
140 | ||
141 | unsigned rtm_flags; | |
142 | }; | |
143 | ||
144 | /* rtm_type */ | |
145 | ||
146 | enum | |
147 | { | |
148 | RTN_UNSPEC, | |
149 | RTN_UNICAST, /* Gateway or direct route */ | |
150 | RTN_LOCAL, /* Accept locally */ | |
151 | RTN_BROADCAST, /* Accept locally as broadcast, | |
152 | send as broadcast */ | |
153 | RTN_ANYCAST, /* Accept locally as broadcast, | |
154 | but send as unicast */ | |
155 | RTN_MULTICAST, /* Multicast route */ | |
156 | RTN_BLACKHOLE, /* Drop */ | |
157 | RTN_UNREACHABLE, /* Destination is unreachable */ | |
158 | RTN_PROHIBIT, /* Administratively prohibited */ | |
159 | RTN_THROW, /* Not in this table */ | |
160 | RTN_NAT, /* Translate this address */ | |
161 | RTN_XRESOLVE, /* Use external resolver */ | |
162 | __RTN_MAX | |
163 | }; | |
164 | ||
165 | #define RTN_MAX (__RTN_MAX - 1) | |
166 | ||
167 | ||
168 | /* rtm_protocol */ | |
169 | ||
170 | #define RTPROT_UNSPEC 0 | |
171 | #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; | |
172 | not used by current IPv4 */ | |
173 | #define RTPROT_KERNEL 2 /* Route installed by kernel */ | |
174 | #define RTPROT_BOOT 3 /* Route installed during boot */ | |
175 | #define RTPROT_STATIC 4 /* Route installed by administrator */ | |
176 | ||
177 | /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; | |
178 | they are just passed from user and back as is. | |
179 | It will be used by hypothetical multiple routing daemons. | |
180 | Note that protocol values should be standardized in order to | |
181 | avoid conflicts. | |
182 | */ | |
183 | ||
184 | #define RTPROT_GATED 8 /* Apparently, GateD */ | |
185 | #define RTPROT_RA 9 /* RDISC/ND router advertisements */ | |
186 | #define RTPROT_MRT 10 /* Merit MRT */ | |
187 | #define RTPROT_ZEBRA 11 /* Zebra */ | |
188 | #define RTPROT_BIRD 12 /* BIRD */ | |
189 | #define RTPROT_DNROUTED 13 /* DECnet routing daemon */ | |
190 | #define RTPROT_XORP 14 /* XORP */ | |
191 | ||
192 | /* rtm_scope | |
193 | ||
194 | Really it is not scope, but sort of distance to the destination. | |
195 | NOWHERE are reserved for not existing destinations, HOST is our | |
196 | local addresses, LINK are destinations, located on directly attached | |
197 | link and UNIVERSE is everywhere in the Universe. | |
198 | ||
199 | Intermediate values are also possible f.e. interior routes | |
200 | could be assigned a value between UNIVERSE and LINK. | |
201 | */ | |
202 | ||
203 | enum rt_scope_t | |
204 | { | |
205 | RT_SCOPE_UNIVERSE=0, | |
206 | /* User defined values */ | |
207 | RT_SCOPE_SITE=200, | |
208 | RT_SCOPE_LINK=253, | |
209 | RT_SCOPE_HOST=254, | |
210 | RT_SCOPE_NOWHERE=255 | |
211 | }; | |
212 | ||
213 | /* rtm_flags */ | |
214 | ||
215 | #define RTM_F_NOTIFY 0x100 /* Notify user of route change */ | |
216 | #define RTM_F_CLONED 0x200 /* This route is cloned */ | |
217 | #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ | |
218 | #define RTM_F_PREFIX 0x800 /* Prefix addresses */ | |
219 | ||
220 | /* Reserved table identifiers */ | |
221 | ||
222 | enum rt_class_t | |
223 | { | |
224 | RT_TABLE_UNSPEC=0, | |
225 | /* User defined values */ | |
226 | RT_TABLE_DEFAULT=253, | |
227 | RT_TABLE_MAIN=254, | |
228 | RT_TABLE_LOCAL=255, | |
229 | __RT_TABLE_MAX | |
230 | }; | |
231 | #define RT_TABLE_MAX (__RT_TABLE_MAX - 1) | |
232 | ||
233 | ||
234 | ||
235 | /* Routing message attributes */ | |
236 | ||
237 | enum rtattr_type_t | |
238 | { | |
239 | RTA_UNSPEC, | |
240 | RTA_DST, | |
241 | RTA_SRC, | |
242 | RTA_IIF, | |
243 | RTA_OIF, | |
244 | RTA_GATEWAY, | |
245 | RTA_PRIORITY, | |
246 | RTA_PREFSRC, | |
247 | RTA_METRICS, | |
248 | RTA_MULTIPATH, | |
249 | RTA_PROTOINFO, | |
250 | RTA_FLOW, | |
251 | RTA_CACHEINFO, | |
252 | RTA_SESSION, | |
253 | RTA_MP_ALGO, | |
254 | __RTA_MAX | |
255 | }; | |
256 | ||
257 | #define RTA_MAX (__RTA_MAX - 1) | |
258 | ||
259 | #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg)))) | |
260 | #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) | |
261 | ||
262 | /* RTM_MULTIPATH --- array of struct rtnexthop. | |
263 | * | |
264 | * "struct rtnexthop" describes all necessary nexthop information, | |
265 | * i.e. parameters of path to a destination via this nexthop. | |
266 | * | |
267 | * At the moment it is impossible to set different prefsrc, mtu, window | |
268 | * and rtt for different paths from multipath. | |
269 | */ | |
270 | ||
271 | struct rtnexthop | |
272 | { | |
273 | unsigned short rtnh_len; | |
274 | unsigned char rtnh_flags; | |
275 | unsigned char rtnh_hops; | |
276 | int rtnh_ifindex; | |
277 | }; | |
278 | ||
279 | /* rtnh_flags */ | |
280 | ||
281 | #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ | |
282 | #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ | |
283 | #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ | |
284 | ||
285 | /* Macros to handle hexthops */ | |
286 | ||
287 | #define RTNH_ALIGNTO 4 | |
288 | #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) ) | |
289 | #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ | |
290 | ((int)(rtnh)->rtnh_len) <= (len)) | |
291 | #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len))) | |
292 | #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len)) | |
293 | #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len)) | |
294 | #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) | |
295 | ||
296 | /* RTM_CACHEINFO */ | |
297 | ||
298 | struct rta_cacheinfo | |
299 | { | |
300 | __u32 rta_clntref; | |
301 | __u32 rta_lastuse; | |
302 | __s32 rta_expires; | |
303 | __u32 rta_error; | |
304 | __u32 rta_used; | |
305 | ||
306 | #define RTNETLINK_HAVE_PEERINFO 1 | |
307 | __u32 rta_id; | |
308 | __u32 rta_ts; | |
309 | __u32 rta_tsage; | |
310 | }; | |
311 | ||
312 | /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ | |
313 | ||
314 | enum | |
315 | { | |
316 | RTAX_UNSPEC, | |
317 | #define RTAX_UNSPEC RTAX_UNSPEC | |
318 | RTAX_LOCK, | |
319 | #define RTAX_LOCK RTAX_LOCK | |
320 | RTAX_MTU, | |
321 | #define RTAX_MTU RTAX_MTU | |
322 | RTAX_WINDOW, | |
323 | #define RTAX_WINDOW RTAX_WINDOW | |
324 | RTAX_RTT, | |
325 | #define RTAX_RTT RTAX_RTT | |
326 | RTAX_RTTVAR, | |
327 | #define RTAX_RTTVAR RTAX_RTTVAR | |
328 | RTAX_SSTHRESH, | |
329 | #define RTAX_SSTHRESH RTAX_SSTHRESH | |
330 | RTAX_CWND, | |
331 | #define RTAX_CWND RTAX_CWND | |
332 | RTAX_ADVMSS, | |
333 | #define RTAX_ADVMSS RTAX_ADVMSS | |
334 | RTAX_REORDERING, | |
335 | #define RTAX_REORDERING RTAX_REORDERING | |
336 | RTAX_HOPLIMIT, | |
337 | #define RTAX_HOPLIMIT RTAX_HOPLIMIT | |
338 | RTAX_INITCWND, | |
339 | #define RTAX_INITCWND RTAX_INITCWND | |
340 | RTAX_FEATURES, | |
341 | #define RTAX_FEATURES RTAX_FEATURES | |
342 | __RTAX_MAX | |
343 | }; | |
344 | ||
345 | #define RTAX_MAX (__RTAX_MAX - 1) | |
346 | ||
347 | #define RTAX_FEATURE_ECN 0x00000001 | |
348 | #define RTAX_FEATURE_SACK 0x00000002 | |
349 | #define RTAX_FEATURE_TIMESTAMP 0x00000004 | |
350 | #define RTAX_FEATURE_ALLFRAG 0x00000008 | |
351 | ||
352 | struct rta_session | |
353 | { | |
354 | __u8 proto; | |
355 | ||
356 | union { | |
357 | struct { | |
358 | __u16 sport; | |
359 | __u16 dport; | |
360 | } ports; | |
361 | ||
362 | struct { | |
363 | __u8 type; | |
364 | __u8 code; | |
365 | __u16 ident; | |
366 | } icmpt; | |
367 | ||
368 | __u32 spi; | |
369 | } u; | |
370 | }; | |
371 | ||
372 | ||
373 | /********************************************************* | |
374 | * Interface address. | |
375 | ****/ | |
376 | ||
377 | struct ifaddrmsg | |
378 | { | |
379 | unsigned char ifa_family; | |
380 | unsigned char ifa_prefixlen; /* The prefix length */ | |
381 | unsigned char ifa_flags; /* Flags */ | |
382 | unsigned char ifa_scope; /* See above */ | |
383 | int ifa_index; /* Link index */ | |
384 | }; | |
385 | ||
386 | enum | |
387 | { | |
388 | IFA_UNSPEC, | |
389 | IFA_ADDRESS, | |
390 | IFA_LOCAL, | |
391 | IFA_LABEL, | |
392 | IFA_BROADCAST, | |
393 | IFA_ANYCAST, | |
394 | IFA_CACHEINFO, | |
395 | IFA_MULTICAST, | |
396 | __IFA_MAX | |
397 | }; | |
398 | ||
399 | #define IFA_MAX (__IFA_MAX - 1) | |
400 | ||
401 | /* ifa_flags */ | |
402 | ||
403 | #define IFA_F_SECONDARY 0x01 | |
404 | #define IFA_F_TEMPORARY IFA_F_SECONDARY | |
405 | ||
406 | #define IFA_F_DEPRECATED 0x20 | |
407 | #define IFA_F_TENTATIVE 0x40 | |
408 | #define IFA_F_PERMANENT 0x80 | |
409 | ||
410 | struct ifa_cacheinfo | |
411 | { | |
412 | __u32 ifa_prefered; | |
413 | __u32 ifa_valid; | |
414 | __u32 cstamp; /* created timestamp, hundredths of seconds */ | |
415 | __u32 tstamp; /* updated timestamp, hundredths of seconds */ | |
416 | }; | |
417 | ||
418 | ||
419 | #define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) | |
420 | #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) | |
421 | ||
422 | /* | |
423 | Important comment: | |
424 | IFA_ADDRESS is prefix address, rather than local interface address. | |
425 | It makes no difference for normally configured broadcast interfaces, | |
426 | but for point-to-point IFA_ADDRESS is DESTINATION address, | |
427 | local address is supplied in IFA_LOCAL attribute. | |
428 | */ | |
429 | ||
430 | /************************************************************** | |
431 | * Neighbour discovery. | |
432 | ****/ | |
433 | ||
434 | struct ndmsg | |
435 | { | |
436 | unsigned char ndm_family; | |
437 | unsigned char ndm_pad1; | |
438 | unsigned short ndm_pad2; | |
439 | int ndm_ifindex; /* Link index */ | |
440 | __u16 ndm_state; | |
441 | __u8 ndm_flags; | |
442 | __u8 ndm_type; | |
443 | }; | |
444 | ||
445 | enum | |
446 | { | |
447 | NDA_UNSPEC, | |
448 | NDA_DST, | |
449 | NDA_LLADDR, | |
450 | NDA_CACHEINFO, | |
451 | NDA_PROBES, | |
452 | __NDA_MAX | |
453 | }; | |
454 | ||
455 | #define NDA_MAX (__NDA_MAX - 1) | |
456 | ||
457 | #define NDA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg)))) | |
458 | #define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg)) | |
459 | ||
460 | /* | |
461 | * Neighbor Cache Entry Flags | |
462 | */ | |
463 | ||
464 | #define NTF_PROXY 0x08 /* == ATF_PUBL */ | |
465 | #define NTF_ROUTER 0x80 | |
466 | ||
467 | /* | |
468 | * Neighbor Cache Entry States. | |
469 | */ | |
470 | ||
471 | #define NUD_INCOMPLETE 0x01 | |
472 | #define NUD_REACHABLE 0x02 | |
473 | #define NUD_STALE 0x04 | |
474 | #define NUD_DELAY 0x08 | |
475 | #define NUD_PROBE 0x10 | |
476 | #define NUD_FAILED 0x20 | |
477 | ||
478 | /* Dummy states */ | |
479 | #define NUD_NOARP 0x40 | |
480 | #define NUD_PERMANENT 0x80 | |
481 | #define NUD_NONE 0x00 | |
482 | ||
483 | ||
484 | struct nda_cacheinfo | |
485 | { | |
486 | __u32 ndm_confirmed; | |
487 | __u32 ndm_used; | |
488 | __u32 ndm_updated; | |
489 | __u32 ndm_refcnt; | |
490 | }; | |
491 | ||
492 | /**** | |
493 | * General form of address family dependent message. | |
494 | ****/ | |
495 | ||
496 | struct rtgenmsg | |
497 | { | |
498 | unsigned char rtgen_family; | |
499 | }; | |
500 | ||
501 | /***************************************************************** | |
502 | * Link layer specific messages. | |
503 | ****/ | |
504 | ||
505 | /* struct ifinfomsg | |
506 | * passes link level specific information, not dependent | |
507 | * on network protocol. | |
508 | */ | |
509 | ||
510 | struct ifinfomsg | |
511 | { | |
512 | unsigned char ifi_family; | |
513 | unsigned char __ifi_pad; | |
514 | unsigned short ifi_type; /* ARPHRD_* */ | |
515 | int ifi_index; /* Link index */ | |
516 | unsigned ifi_flags; /* IFF_* flags */ | |
517 | unsigned ifi_change; /* IFF_* change mask */ | |
518 | }; | |
519 | ||
520 | /******************************************************************** | |
521 | * prefix information | |
522 | ****/ | |
523 | ||
524 | struct prefixmsg | |
525 | { | |
526 | unsigned char prefix_family; | |
527 | int prefix_ifindex; | |
528 | unsigned char prefix_type; | |
529 | unsigned char prefix_len; | |
530 | unsigned char prefix_flags; | |
531 | }; | |
532 | ||
533 | enum | |
534 | { | |
535 | PREFIX_UNSPEC, | |
536 | PREFIX_ADDRESS, | |
537 | PREFIX_CACHEINFO, | |
538 | __PREFIX_MAX | |
539 | }; | |
540 | ||
541 | #define PREFIX_MAX (__PREFIX_MAX - 1) | |
542 | ||
543 | struct prefix_cacheinfo | |
544 | { | |
545 | __u32 preferred_time; | |
546 | __u32 valid_time; | |
547 | }; | |
548 | ||
549 | /* The struct should be in sync with struct net_device_stats */ | |
550 | struct rtnl_link_stats | |
551 | { | |
552 | __u32 rx_packets; /* total packets received */ | |
553 | __u32 tx_packets; /* total packets transmitted */ | |
554 | __u32 rx_bytes; /* total bytes received */ | |
555 | __u32 tx_bytes; /* total bytes transmitted */ | |
556 | __u32 rx_errors; /* bad packets received */ | |
557 | __u32 tx_errors; /* packet transmit problems */ | |
558 | __u32 rx_dropped; /* no space in linux buffers */ | |
559 | __u32 tx_dropped; /* no space available in linux */ | |
560 | __u32 multicast; /* multicast packets received */ | |
561 | __u32 collisions; | |
562 | ||
563 | /* detailed rx_errors: */ | |
564 | __u32 rx_length_errors; | |
565 | __u32 rx_over_errors; /* receiver ring buff overflow */ | |
566 | __u32 rx_crc_errors; /* recved pkt with crc error */ | |
567 | __u32 rx_frame_errors; /* recv'd frame alignment error */ | |
568 | __u32 rx_fifo_errors; /* recv'r fifo overrun */ | |
569 | __u32 rx_missed_errors; /* receiver missed packet */ | |
570 | ||
571 | /* detailed tx_errors */ | |
572 | __u32 tx_aborted_errors; | |
573 | __u32 tx_carrier_errors; | |
574 | __u32 tx_fifo_errors; | |
575 | __u32 tx_heartbeat_errors; | |
576 | __u32 tx_window_errors; | |
577 | ||
578 | /* for cslip etc */ | |
579 | __u32 rx_compressed; | |
580 | __u32 tx_compressed; | |
581 | }; | |
582 | ||
583 | /* The struct should be in sync with struct ifmap */ | |
584 | struct rtnl_link_ifmap | |
585 | { | |
586 | __u64 mem_start; | |
587 | __u64 mem_end; | |
588 | __u64 base_addr; | |
589 | __u16 irq; | |
590 | __u8 dma; | |
591 | __u8 port; | |
592 | }; | |
593 | ||
594 | enum | |
595 | { | |
596 | IFLA_UNSPEC, | |
597 | IFLA_ADDRESS, | |
598 | IFLA_BROADCAST, | |
599 | IFLA_IFNAME, | |
600 | IFLA_MTU, | |
601 | IFLA_LINK, | |
602 | IFLA_QDISC, | |
603 | IFLA_STATS, | |
604 | IFLA_COST, | |
605 | #define IFLA_COST IFLA_COST | |
606 | IFLA_PRIORITY, | |
607 | #define IFLA_PRIORITY IFLA_PRIORITY | |
608 | IFLA_MASTER, | |
609 | #define IFLA_MASTER IFLA_MASTER | |
610 | IFLA_WIRELESS, /* Wireless Extension event - see wireless.h */ | |
611 | #define IFLA_WIRELESS IFLA_WIRELESS | |
612 | IFLA_PROTINFO, /* Protocol specific information for a link */ | |
613 | #define IFLA_PROTINFO IFLA_PROTINFO | |
614 | IFLA_TXQLEN, | |
615 | #define IFLA_TXQLEN IFLA_TXQLEN | |
616 | IFLA_MAP, | |
617 | #define IFLA_MAP IFLA_MAP | |
618 | IFLA_WEIGHT, | |
619 | #define IFLA_WEIGHT IFLA_WEIGHT | |
620 | __IFLA_MAX | |
621 | }; | |
622 | ||
623 | ||
624 | #define IFLA_MAX (__IFLA_MAX - 1) | |
625 | ||
626 | #define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg)))) | |
627 | #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg)) | |
628 | ||
629 | /* ifi_flags. | |
630 | ||
631 | IFF_* flags. | |
632 | ||
633 | The only change is: | |
634 | IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are | |
635 | more not changeable by user. They describe link media | |
636 | characteristics and set by device driver. | |
637 | ||
638 | Comments: | |
639 | - Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid | |
640 | - If neither of these three flags are set; | |
641 | the interface is NBMA. | |
642 | ||
643 | - IFF_MULTICAST does not mean anything special: | |
644 | multicasts can be used on all not-NBMA links. | |
645 | IFF_MULTICAST means that this media uses special encapsulation | |
646 | for multicast frames. Apparently, all IFF_POINTOPOINT and | |
647 | IFF_BROADCAST devices are able to use multicasts too. | |
648 | */ | |
649 | ||
650 | /* IFLA_LINK. | |
651 | For usual devices it is equal ifi_index. | |
652 | If it is a "virtual interface" (f.e. tunnel), ifi_link | |
653 | can point to real physical interface (f.e. for bandwidth calculations), | |
654 | or maybe 0, what means, that real media is unknown (usual | |
655 | for IPIP tunnels, when route to endpoint is allowed to change) | |
656 | */ | |
657 | ||
658 | /* Subtype attributes for IFLA_PROTINFO */ | |
659 | enum | |
660 | { | |
661 | IFLA_INET6_UNSPEC, | |
662 | IFLA_INET6_FLAGS, /* link flags */ | |
663 | IFLA_INET6_CONF, /* sysctl parameters */ | |
664 | IFLA_INET6_STATS, /* statistics */ | |
665 | IFLA_INET6_MCAST, /* MC things. What of them? */ | |
666 | IFLA_INET6_CACHEINFO, /* time values and max reasm size */ | |
667 | __IFLA_INET6_MAX | |
668 | }; | |
669 | ||
670 | #define IFLA_INET6_MAX (__IFLA_INET6_MAX - 1) | |
671 | ||
672 | struct ifla_cacheinfo | |
673 | { | |
674 | __u32 max_reasm_len; | |
675 | __u32 tstamp; /* ipv6InterfaceTable updated timestamp */ | |
676 | __u32 reachable_time; | |
677 | __u32 retrans_time; | |
678 | }; | |
679 | ||
680 | /***************************************************************** | |
681 | * Traffic control messages. | |
682 | ****/ | |
683 | ||
684 | struct tcmsg | |
685 | { | |
686 | unsigned char tcm_family; | |
687 | unsigned char tcm__pad1; | |
688 | unsigned short tcm__pad2; | |
689 | int tcm_ifindex; | |
690 | __u32 tcm_handle; | |
691 | __u32 tcm_parent; | |
692 | __u32 tcm_info; | |
693 | }; | |
694 | ||
695 | enum | |
696 | { | |
697 | TCA_UNSPEC, | |
698 | TCA_KIND, | |
699 | TCA_OPTIONS, | |
700 | TCA_STATS, | |
701 | TCA_XSTATS, | |
702 | TCA_RATE, | |
703 | TCA_FCNT, | |
704 | TCA_STATS2, | |
705 | __TCA_MAX | |
706 | }; | |
707 | ||
708 | #define TCA_MAX (__TCA_MAX - 1) | |
709 | ||
710 | #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg)))) | |
711 | #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg)) | |
712 | ||
713 | ||
714 | /* RTnetlink multicast groups */ | |
715 | ||
716 | #define RTMGRP_LINK 1 | |
717 | #define RTMGRP_NOTIFY 2 | |
718 | #define RTMGRP_NEIGH 4 | |
719 | #define RTMGRP_TC 8 | |
720 | ||
721 | #define RTMGRP_IPV4_IFADDR 0x10 | |
722 | #define RTMGRP_IPV4_MROUTE 0x20 | |
723 | #define RTMGRP_IPV4_ROUTE 0x40 | |
724 | ||
725 | #define RTMGRP_IPV6_IFADDR 0x100 | |
726 | #define RTMGRP_IPV6_MROUTE 0x200 | |
727 | #define RTMGRP_IPV6_ROUTE 0x400 | |
728 | #define RTMGRP_IPV6_IFINFO 0x800 | |
729 | ||
730 | #define RTMGRP_DECnet_IFADDR 0x1000 | |
731 | #define RTMGRP_DECnet_ROUTE 0x4000 | |
732 | ||
733 | #define RTMGRP_IPV6_PREFIX 0x20000 | |
734 | ||
735 | /* TC action piece */ | |
736 | struct tcamsg | |
737 | { | |
738 | unsigned char tca_family; | |
739 | unsigned char tca__pad1; | |
740 | unsigned short tca__pad2; | |
741 | }; | |
742 | #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg)))) | |
743 | #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg)) | |
744 | #define TCA_ACT_TAB 1 /* attr type must be >=1 */ | |
745 | #define TCAA_MAX 1 | |
746 | ||
747 | /* End of information exported to user level */ | |
748 | ||
749 | #ifdef __KERNEL__ | |
750 | ||
751 | #include <linux/config.h> | |
752 | ||
753 | extern size_t rtattr_strlcpy(char *dest, const struct rtattr *rta, size_t size); | |
754 | static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str) | |
755 | { | |
756 | int len = strlen(str) + 1; | |
757 | return len > rta->rta_len || memcmp(RTA_DATA(rta), str, len); | |
758 | } | |
759 | ||
760 | extern int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len); | |
761 | ||
762 | #define rtattr_parse_nested(tb, max, rta) \ | |
763 | rtattr_parse((tb), (max), RTA_DATA((rta)), RTA_PAYLOAD((rta))) | |
764 | ||
765 | extern struct sock *rtnl; | |
766 | ||
767 | struct rtnetlink_link | |
768 | { | |
769 | int (*doit)(struct sk_buff *, struct nlmsghdr*, void *attr); | |
770 | int (*dumpit)(struct sk_buff *, struct netlink_callback *cb); | |
771 | }; | |
772 | ||
773 | extern struct rtnetlink_link * rtnetlink_links[NPROTO]; | |
774 | extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo); | |
775 | extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); | |
776 | ||
777 | extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data); | |
778 | ||
779 | #define RTA_PUT(skb, attrtype, attrlen, data) \ | |
780 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
781 | goto rtattr_failure; \ | |
782 | __rta_fill(skb, attrtype, attrlen, data); }) | |
783 | ||
784 | #define RTA_PUT_NOHDR(skb, attrlen, data) \ | |
785 | ({ if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \ | |
786 | goto rtattr_failure; \ | |
787 | memcpy(skb_put(skb, RTA_ALIGN(attrlen)), data, attrlen); }) | |
788 | ||
789 | static inline struct rtattr * | |
790 | __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) | |
791 | { | |
792 | struct rtattr *rta; | |
793 | int size = RTA_LENGTH(attrlen); | |
794 | ||
795 | rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size)); | |
796 | rta->rta_type = attrtype; | |
797 | rta->rta_len = size; | |
798 | return rta; | |
799 | } | |
800 | ||
801 | #define __RTA_PUT(skb, attrtype, attrlen) \ | |
802 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
803 | goto rtattr_failure; \ | |
804 | __rta_reserve(skb, attrtype, attrlen); }) | |
805 | ||
806 | extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change); | |
807 | ||
808 | extern struct semaphore rtnl_sem; | |
809 | ||
810 | #define rtnl_shlock() down(&rtnl_sem) | |
811 | #define rtnl_shlock_nowait() down_trylock(&rtnl_sem) | |
812 | ||
813 | #define rtnl_shunlock() do { up(&rtnl_sem); \ | |
814 | if (rtnl && rtnl->sk_receive_queue.qlen) \ | |
815 | rtnl->sk_data_ready(rtnl, 0); \ | |
816 | } while(0) | |
817 | ||
818 | extern void rtnl_lock(void); | |
819 | extern int rtnl_lock_interruptible(void); | |
820 | extern void rtnl_unlock(void); | |
821 | extern void rtnetlink_init(void); | |
822 | ||
823 | #define ASSERT_RTNL() do { \ | |
824 | if (unlikely(down_trylock(&rtnl_sem) == 0)) { \ | |
825 | up(&rtnl_sem); \ | |
826 | printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \ | |
827 | __FILE__, __LINE__); \ | |
828 | dump_stack(); \ | |
829 | } \ | |
830 | } while(0) | |
831 | ||
832 | #define BUG_TRAP(x) do { \ | |
833 | if (unlikely(!(x))) { \ | |
834 | printk(KERN_ERR "KERNEL: assertion (%s) failed at %s (%d)\n", \ | |
835 | #x, __FILE__ , __LINE__); \ | |
836 | } \ | |
837 | } while(0) | |
838 | ||
839 | #endif /* __KERNEL__ */ | |
840 | ||
841 | ||
842 | #endif /* __LINUX_RTNETLINK_H */ |