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1da177e4 LT |
1 | #ifndef __LINUX_RTNETLINK_H |
2 | #define __LINUX_RTNETLINK_H | |
3 | ||
541c94f1 | 4 | #include <linux/types.h> |
1da177e4 | 5 | #include <linux/netlink.h> |
cbde1668 | 6 | #include <linux/if_link.h> |
e07bca84 TG |
7 | #include <linux/if_addr.h> |
8 | #include <linux/neighbour.h> | |
1da177e4 LT |
9 | |
10 | /**** | |
11 | * Routing/neighbour discovery messages. | |
12 | ****/ | |
13 | ||
14 | /* Types of messages */ | |
15 | ||
16 | enum { | |
17 | RTM_BASE = 16, | |
18 | #define RTM_BASE RTM_BASE | |
19 | ||
20 | RTM_NEWLINK = 16, | |
21 | #define RTM_NEWLINK RTM_NEWLINK | |
22 | RTM_DELLINK, | |
23 | #define RTM_DELLINK RTM_DELLINK | |
24 | RTM_GETLINK, | |
25 | #define RTM_GETLINK RTM_GETLINK | |
26 | RTM_SETLINK, | |
27 | #define RTM_SETLINK RTM_SETLINK | |
28 | ||
29 | RTM_NEWADDR = 20, | |
30 | #define RTM_NEWADDR RTM_NEWADDR | |
31 | RTM_DELADDR, | |
32 | #define RTM_DELADDR RTM_DELADDR | |
33 | RTM_GETADDR, | |
34 | #define RTM_GETADDR RTM_GETADDR | |
35 | ||
36 | RTM_NEWROUTE = 24, | |
37 | #define RTM_NEWROUTE RTM_NEWROUTE | |
38 | RTM_DELROUTE, | |
39 | #define RTM_DELROUTE RTM_DELROUTE | |
40 | RTM_GETROUTE, | |
41 | #define RTM_GETROUTE RTM_GETROUTE | |
42 | ||
43 | RTM_NEWNEIGH = 28, | |
44 | #define RTM_NEWNEIGH RTM_NEWNEIGH | |
45 | RTM_DELNEIGH, | |
46 | #define RTM_DELNEIGH RTM_DELNEIGH | |
47 | RTM_GETNEIGH, | |
48 | #define RTM_GETNEIGH RTM_GETNEIGH | |
49 | ||
50 | RTM_NEWRULE = 32, | |
51 | #define RTM_NEWRULE RTM_NEWRULE | |
52 | RTM_DELRULE, | |
53 | #define RTM_DELRULE RTM_DELRULE | |
54 | RTM_GETRULE, | |
55 | #define RTM_GETRULE RTM_GETRULE | |
56 | ||
57 | RTM_NEWQDISC = 36, | |
58 | #define RTM_NEWQDISC RTM_NEWQDISC | |
59 | RTM_DELQDISC, | |
60 | #define RTM_DELQDISC RTM_DELQDISC | |
61 | RTM_GETQDISC, | |
62 | #define RTM_GETQDISC RTM_GETQDISC | |
63 | ||
64 | RTM_NEWTCLASS = 40, | |
65 | #define RTM_NEWTCLASS RTM_NEWTCLASS | |
66 | RTM_DELTCLASS, | |
67 | #define RTM_DELTCLASS RTM_DELTCLASS | |
68 | RTM_GETTCLASS, | |
69 | #define RTM_GETTCLASS RTM_GETTCLASS | |
70 | ||
71 | RTM_NEWTFILTER = 44, | |
72 | #define RTM_NEWTFILTER RTM_NEWTFILTER | |
73 | RTM_DELTFILTER, | |
74 | #define RTM_DELTFILTER RTM_DELTFILTER | |
75 | RTM_GETTFILTER, | |
76 | #define RTM_GETTFILTER RTM_GETTFILTER | |
77 | ||
78 | RTM_NEWACTION = 48, | |
79 | #define RTM_NEWACTION RTM_NEWACTION | |
80 | RTM_DELACTION, | |
81 | #define RTM_DELACTION RTM_DELACTION | |
82 | RTM_GETACTION, | |
83 | #define RTM_GETACTION RTM_GETACTION | |
84 | ||
85 | RTM_NEWPREFIX = 52, | |
86 | #define RTM_NEWPREFIX RTM_NEWPREFIX | |
1da177e4 LT |
87 | |
88 | RTM_GETMULTICAST = 58, | |
89 | #define RTM_GETMULTICAST RTM_GETMULTICAST | |
90 | ||
91 | RTM_GETANYCAST = 62, | |
92 | #define RTM_GETANYCAST RTM_GETANYCAST | |
93 | ||
c7fb64db TG |
94 | RTM_NEWNEIGHTBL = 64, |
95 | #define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL | |
96 | RTM_GETNEIGHTBL = 66, | |
97 | #define RTM_GETNEIGHTBL RTM_GETNEIGHTBL | |
98 | RTM_SETNEIGHTBL, | |
99 | #define RTM_SETNEIGHTBL RTM_SETNEIGHTBL | |
100 | ||
31910575 PY |
101 | RTM_NEWNDUSEROPT = 68, |
102 | #define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT | |
103 | ||
2a8cc6c8 YH |
104 | RTM_NEWADDRLABEL = 72, |
105 | #define RTM_NEWADDRLABEL RTM_NEWADDRLABEL | |
106 | RTM_DELADDRLABEL, | |
107 | #define RTM_NEWADDRLABEL RTM_NEWADDRLABEL | |
108 | RTM_GETADDRLABEL, | |
109 | #define RTM_GETADDRLABEL RTM_GETADDRLABEL | |
110 | ||
2f90b865 AD |
111 | RTM_GETDCB = 78, |
112 | #define RTM_GETDCB RTM_GETDCB | |
113 | RTM_SETDCB, | |
114 | #define RTM_SETDCB RTM_SETDCB | |
115 | ||
d775fc09 TG |
116 | __RTM_MAX, |
117 | #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) | |
1da177e4 LT |
118 | }; |
119 | ||
db46edc6 TG |
120 | #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) |
121 | #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2) | |
f90a0a74 TG |
122 | #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) |
123 | ||
1da177e4 LT |
124 | /* |
125 | Generic structure for encapsulation of optional route information. | |
126 | It is reminiscent of sockaddr, but with sa_family replaced | |
127 | with attribute type. | |
128 | */ | |
129 | ||
130 | struct rtattr | |
131 | { | |
132 | unsigned short rta_len; | |
133 | unsigned short rta_type; | |
134 | }; | |
135 | ||
136 | /* Macros to handle rtattributes */ | |
137 | ||
138 | #define RTA_ALIGNTO 4 | |
139 | #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) ) | |
140 | #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ | |
141 | (rta)->rta_len >= sizeof(struct rtattr) && \ | |
142 | (rta)->rta_len <= (len)) | |
143 | #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ | |
144 | (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len))) | |
145 | #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len)) | |
146 | #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) | |
147 | #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0))) | |
148 | #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) | |
149 | ||
150 | ||
151 | ||
152 | ||
153 | /****************************************************************************** | |
154 | * Definitions used in routing table administration. | |
155 | ****/ | |
156 | ||
157 | struct rtmsg | |
158 | { | |
159 | unsigned char rtm_family; | |
160 | unsigned char rtm_dst_len; | |
161 | unsigned char rtm_src_len; | |
162 | unsigned char rtm_tos; | |
163 | ||
164 | unsigned char rtm_table; /* Routing table id */ | |
165 | unsigned char rtm_protocol; /* Routing protocol; see below */ | |
166 | unsigned char rtm_scope; /* See below */ | |
167 | unsigned char rtm_type; /* See below */ | |
168 | ||
169 | unsigned rtm_flags; | |
170 | }; | |
171 | ||
172 | /* rtm_type */ | |
173 | ||
174 | enum | |
175 | { | |
176 | RTN_UNSPEC, | |
177 | RTN_UNICAST, /* Gateway or direct route */ | |
178 | RTN_LOCAL, /* Accept locally */ | |
179 | RTN_BROADCAST, /* Accept locally as broadcast, | |
180 | send as broadcast */ | |
181 | RTN_ANYCAST, /* Accept locally as broadcast, | |
182 | but send as unicast */ | |
183 | RTN_MULTICAST, /* Multicast route */ | |
184 | RTN_BLACKHOLE, /* Drop */ | |
185 | RTN_UNREACHABLE, /* Destination is unreachable */ | |
186 | RTN_PROHIBIT, /* Administratively prohibited */ | |
187 | RTN_THROW, /* Not in this table */ | |
188 | RTN_NAT, /* Translate this address */ | |
189 | RTN_XRESOLVE, /* Use external resolver */ | |
190 | __RTN_MAX | |
191 | }; | |
192 | ||
193 | #define RTN_MAX (__RTN_MAX - 1) | |
194 | ||
195 | ||
196 | /* rtm_protocol */ | |
197 | ||
198 | #define RTPROT_UNSPEC 0 | |
199 | #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; | |
200 | not used by current IPv4 */ | |
201 | #define RTPROT_KERNEL 2 /* Route installed by kernel */ | |
202 | #define RTPROT_BOOT 3 /* Route installed during boot */ | |
203 | #define RTPROT_STATIC 4 /* Route installed by administrator */ | |
204 | ||
205 | /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; | |
206 | they are just passed from user and back as is. | |
207 | It will be used by hypothetical multiple routing daemons. | |
208 | Note that protocol values should be standardized in order to | |
209 | avoid conflicts. | |
210 | */ | |
211 | ||
212 | #define RTPROT_GATED 8 /* Apparently, GateD */ | |
213 | #define RTPROT_RA 9 /* RDISC/ND router advertisements */ | |
214 | #define RTPROT_MRT 10 /* Merit MRT */ | |
215 | #define RTPROT_ZEBRA 11 /* Zebra */ | |
216 | #define RTPROT_BIRD 12 /* BIRD */ | |
217 | #define RTPROT_DNROUTED 13 /* DECnet routing daemon */ | |
218 | #define RTPROT_XORP 14 /* XORP */ | |
99cae7fc | 219 | #define RTPROT_NTK 15 /* Netsukuku */ |
1da177e4 LT |
220 | |
221 | /* rtm_scope | |
222 | ||
223 | Really it is not scope, but sort of distance to the destination. | |
224 | NOWHERE are reserved for not existing destinations, HOST is our | |
225 | local addresses, LINK are destinations, located on directly attached | |
226 | link and UNIVERSE is everywhere in the Universe. | |
227 | ||
228 | Intermediate values are also possible f.e. interior routes | |
229 | could be assigned a value between UNIVERSE and LINK. | |
230 | */ | |
231 | ||
232 | enum rt_scope_t | |
233 | { | |
234 | RT_SCOPE_UNIVERSE=0, | |
235 | /* User defined values */ | |
236 | RT_SCOPE_SITE=200, | |
237 | RT_SCOPE_LINK=253, | |
238 | RT_SCOPE_HOST=254, | |
239 | RT_SCOPE_NOWHERE=255 | |
240 | }; | |
241 | ||
242 | /* rtm_flags */ | |
243 | ||
244 | #define RTM_F_NOTIFY 0x100 /* Notify user of route change */ | |
245 | #define RTM_F_CLONED 0x200 /* This route is cloned */ | |
246 | #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ | |
247 | #define RTM_F_PREFIX 0x800 /* Prefix addresses */ | |
248 | ||
249 | /* Reserved table identifiers */ | |
250 | ||
251 | enum rt_class_t | |
252 | { | |
253 | RT_TABLE_UNSPEC=0, | |
254 | /* User defined values */ | |
709772e6 | 255 | RT_TABLE_COMPAT=252, |
1da177e4 LT |
256 | RT_TABLE_DEFAULT=253, |
257 | RT_TABLE_MAIN=254, | |
258 | RT_TABLE_LOCAL=255, | |
b801f549 | 259 | RT_TABLE_MAX=0xFFFFFFFF |
1da177e4 | 260 | }; |
1da177e4 LT |
261 | |
262 | ||
263 | /* Routing message attributes */ | |
264 | ||
265 | enum rtattr_type_t | |
266 | { | |
267 | RTA_UNSPEC, | |
268 | RTA_DST, | |
269 | RTA_SRC, | |
270 | RTA_IIF, | |
271 | RTA_OIF, | |
272 | RTA_GATEWAY, | |
273 | RTA_PRIORITY, | |
274 | RTA_PREFSRC, | |
275 | RTA_METRICS, | |
276 | RTA_MULTIPATH, | |
1f9d11c7 | 277 | RTA_PROTOINFO, /* no longer used */ |
1da177e4 LT |
278 | RTA_FLOW, |
279 | RTA_CACHEINFO, | |
1f9d11c7 | 280 | RTA_SESSION, /* no longer used */ |
e06e7c61 | 281 | RTA_MP_ALGO, /* no longer used */ |
9e762a4a | 282 | RTA_TABLE, |
1da177e4 LT |
283 | __RTA_MAX |
284 | }; | |
285 | ||
286 | #define RTA_MAX (__RTA_MAX - 1) | |
287 | ||
288 | #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg)))) | |
289 | #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) | |
290 | ||
291 | /* RTM_MULTIPATH --- array of struct rtnexthop. | |
292 | * | |
293 | * "struct rtnexthop" describes all necessary nexthop information, | |
294 | * i.e. parameters of path to a destination via this nexthop. | |
295 | * | |
296 | * At the moment it is impossible to set different prefsrc, mtu, window | |
297 | * and rtt for different paths from multipath. | |
298 | */ | |
299 | ||
300 | struct rtnexthop | |
301 | { | |
302 | unsigned short rtnh_len; | |
303 | unsigned char rtnh_flags; | |
304 | unsigned char rtnh_hops; | |
305 | int rtnh_ifindex; | |
306 | }; | |
307 | ||
308 | /* rtnh_flags */ | |
309 | ||
310 | #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ | |
311 | #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ | |
312 | #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ | |
313 | ||
314 | /* Macros to handle hexthops */ | |
315 | ||
316 | #define RTNH_ALIGNTO 4 | |
317 | #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) ) | |
318 | #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ | |
319 | ((int)(rtnh)->rtnh_len) <= (len)) | |
320 | #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len))) | |
321 | #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len)) | |
322 | #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len)) | |
323 | #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) | |
324 | ||
325 | /* RTM_CACHEINFO */ | |
326 | ||
327 | struct rta_cacheinfo | |
328 | { | |
329 | __u32 rta_clntref; | |
330 | __u32 rta_lastuse; | |
331 | __s32 rta_expires; | |
332 | __u32 rta_error; | |
333 | __u32 rta_used; | |
334 | ||
335 | #define RTNETLINK_HAVE_PEERINFO 1 | |
336 | __u32 rta_id; | |
337 | __u32 rta_ts; | |
338 | __u32 rta_tsage; | |
339 | }; | |
340 | ||
341 | /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ | |
342 | ||
343 | enum | |
344 | { | |
345 | RTAX_UNSPEC, | |
346 | #define RTAX_UNSPEC RTAX_UNSPEC | |
347 | RTAX_LOCK, | |
348 | #define RTAX_LOCK RTAX_LOCK | |
349 | RTAX_MTU, | |
350 | #define RTAX_MTU RTAX_MTU | |
351 | RTAX_WINDOW, | |
352 | #define RTAX_WINDOW RTAX_WINDOW | |
353 | RTAX_RTT, | |
354 | #define RTAX_RTT RTAX_RTT | |
355 | RTAX_RTTVAR, | |
356 | #define RTAX_RTTVAR RTAX_RTTVAR | |
357 | RTAX_SSTHRESH, | |
358 | #define RTAX_SSTHRESH RTAX_SSTHRESH | |
359 | RTAX_CWND, | |
360 | #define RTAX_CWND RTAX_CWND | |
361 | RTAX_ADVMSS, | |
362 | #define RTAX_ADVMSS RTAX_ADVMSS | |
363 | RTAX_REORDERING, | |
364 | #define RTAX_REORDERING RTAX_REORDERING | |
365 | RTAX_HOPLIMIT, | |
366 | #define RTAX_HOPLIMIT RTAX_HOPLIMIT | |
367 | RTAX_INITCWND, | |
368 | #define RTAX_INITCWND RTAX_INITCWND | |
369 | RTAX_FEATURES, | |
370 | #define RTAX_FEATURES RTAX_FEATURES | |
05bb1fad DM |
371 | RTAX_RTO_MIN, |
372 | #define RTAX_RTO_MIN RTAX_RTO_MIN | |
1da177e4 LT |
373 | __RTAX_MAX |
374 | }; | |
375 | ||
376 | #define RTAX_MAX (__RTAX_MAX - 1) | |
377 | ||
378 | #define RTAX_FEATURE_ECN 0x00000001 | |
379 | #define RTAX_FEATURE_SACK 0x00000002 | |
380 | #define RTAX_FEATURE_TIMESTAMP 0x00000004 | |
381 | #define RTAX_FEATURE_ALLFRAG 0x00000008 | |
382 | ||
383 | struct rta_session | |
384 | { | |
385 | __u8 proto; | |
8a47077a PM |
386 | __u8 pad1; |
387 | __u16 pad2; | |
1da177e4 LT |
388 | |
389 | union { | |
390 | struct { | |
391 | __u16 sport; | |
392 | __u16 dport; | |
393 | } ports; | |
394 | ||
395 | struct { | |
396 | __u8 type; | |
397 | __u8 code; | |
398 | __u16 ident; | |
399 | } icmpt; | |
400 | ||
401 | __u32 spi; | |
402 | } u; | |
403 | }; | |
404 | ||
1da177e4 LT |
405 | /**** |
406 | * General form of address family dependent message. | |
407 | ****/ | |
408 | ||
409 | struct rtgenmsg | |
410 | { | |
411 | unsigned char rtgen_family; | |
412 | }; | |
413 | ||
414 | /***************************************************************** | |
415 | * Link layer specific messages. | |
416 | ****/ | |
417 | ||
418 | /* struct ifinfomsg | |
419 | * passes link level specific information, not dependent | |
420 | * on network protocol. | |
421 | */ | |
422 | ||
423 | struct ifinfomsg | |
424 | { | |
425 | unsigned char ifi_family; | |
426 | unsigned char __ifi_pad; | |
427 | unsigned short ifi_type; /* ARPHRD_* */ | |
428 | int ifi_index; /* Link index */ | |
429 | unsigned ifi_flags; /* IFF_* flags */ | |
430 | unsigned ifi_change; /* IFF_* change mask */ | |
431 | }; | |
432 | ||
433 | /******************************************************************** | |
434 | * prefix information | |
435 | ****/ | |
436 | ||
437 | struct prefixmsg | |
438 | { | |
439 | unsigned char prefix_family; | |
8a47077a PM |
440 | unsigned char prefix_pad1; |
441 | unsigned short prefix_pad2; | |
1da177e4 LT |
442 | int prefix_ifindex; |
443 | unsigned char prefix_type; | |
444 | unsigned char prefix_len; | |
445 | unsigned char prefix_flags; | |
8a47077a | 446 | unsigned char prefix_pad3; |
1da177e4 LT |
447 | }; |
448 | ||
449 | enum | |
450 | { | |
451 | PREFIX_UNSPEC, | |
452 | PREFIX_ADDRESS, | |
453 | PREFIX_CACHEINFO, | |
454 | __PREFIX_MAX | |
455 | }; | |
456 | ||
457 | #define PREFIX_MAX (__PREFIX_MAX - 1) | |
458 | ||
459 | struct prefix_cacheinfo | |
460 | { | |
461 | __u32 preferred_time; | |
462 | __u32 valid_time; | |
463 | }; | |
464 | ||
1da177e4 LT |
465 | |
466 | /***************************************************************** | |
467 | * Traffic control messages. | |
468 | ****/ | |
469 | ||
470 | struct tcmsg | |
471 | { | |
472 | unsigned char tcm_family; | |
473 | unsigned char tcm__pad1; | |
474 | unsigned short tcm__pad2; | |
475 | int tcm_ifindex; | |
476 | __u32 tcm_handle; | |
477 | __u32 tcm_parent; | |
478 | __u32 tcm_info; | |
479 | }; | |
480 | ||
481 | enum | |
482 | { | |
483 | TCA_UNSPEC, | |
484 | TCA_KIND, | |
485 | TCA_OPTIONS, | |
486 | TCA_STATS, | |
487 | TCA_XSTATS, | |
488 | TCA_RATE, | |
489 | TCA_FCNT, | |
490 | TCA_STATS2, | |
175f9c1b | 491 | TCA_STAB, |
1da177e4 LT |
492 | __TCA_MAX |
493 | }; | |
494 | ||
495 | #define TCA_MAX (__TCA_MAX - 1) | |
496 | ||
497 | #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg)))) | |
498 | #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg)) | |
499 | ||
31910575 PY |
500 | /******************************************************************** |
501 | * Neighbor Discovery userland options | |
502 | ****/ | |
503 | ||
504 | struct nduseroptmsg | |
505 | { | |
506 | unsigned char nduseropt_family; | |
507 | unsigned char nduseropt_pad1; | |
508 | unsigned short nduseropt_opts_len; /* Total length of options */ | |
dbb2ed24 | 509 | int nduseropt_ifindex; |
31910575 PY |
510 | __u8 nduseropt_icmp_type; |
511 | __u8 nduseropt_icmp_code; | |
512 | unsigned short nduseropt_pad2; | |
dbb2ed24 | 513 | unsigned int nduseropt_pad3; |
31910575 PY |
514 | /* Followed by one or more ND options */ |
515 | }; | |
516 | ||
517 | enum | |
518 | { | |
519 | NDUSEROPT_UNSPEC, | |
520 | NDUSEROPT_SRCADDR, | |
521 | __NDUSEROPT_MAX | |
522 | }; | |
523 | ||
524 | #define NDUSEROPT_MAX (__NDUSEROPT_MAX - 1) | |
525 | ||
ac6d439d PM |
526 | #ifndef __KERNEL__ |
527 | /* RTnetlink multicast groups - backwards compatibility for userspace */ | |
1da177e4 LT |
528 | #define RTMGRP_LINK 1 |
529 | #define RTMGRP_NOTIFY 2 | |
530 | #define RTMGRP_NEIGH 4 | |
531 | #define RTMGRP_TC 8 | |
532 | ||
533 | #define RTMGRP_IPV4_IFADDR 0x10 | |
534 | #define RTMGRP_IPV4_MROUTE 0x20 | |
535 | #define RTMGRP_IPV4_ROUTE 0x40 | |
a5cdc030 | 536 | #define RTMGRP_IPV4_RULE 0x80 |
1da177e4 LT |
537 | |
538 | #define RTMGRP_IPV6_IFADDR 0x100 | |
539 | #define RTMGRP_IPV6_MROUTE 0x200 | |
540 | #define RTMGRP_IPV6_ROUTE 0x400 | |
541 | #define RTMGRP_IPV6_IFINFO 0x800 | |
542 | ||
543 | #define RTMGRP_DECnet_IFADDR 0x1000 | |
544 | #define RTMGRP_DECnet_ROUTE 0x4000 | |
545 | ||
546 | #define RTMGRP_IPV6_PREFIX 0x20000 | |
ac6d439d PM |
547 | #endif |
548 | ||
549 | /* RTnetlink multicast groups */ | |
550 | enum rtnetlink_groups { | |
551 | RTNLGRP_NONE, | |
552 | #define RTNLGRP_NONE RTNLGRP_NONE | |
553 | RTNLGRP_LINK, | |
554 | #define RTNLGRP_LINK RTNLGRP_LINK | |
555 | RTNLGRP_NOTIFY, | |
556 | #define RTNLGRP_NOTIFY RTNLGRP_NOTIFY | |
557 | RTNLGRP_NEIGH, | |
558 | #define RTNLGRP_NEIGH RTNLGRP_NEIGH | |
559 | RTNLGRP_TC, | |
560 | #define RTNLGRP_TC RTNLGRP_TC | |
561 | RTNLGRP_IPV4_IFADDR, | |
562 | #define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR | |
563 | RTNLGRP_IPV4_MROUTE, | |
564 | #define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE | |
565 | RTNLGRP_IPV4_ROUTE, | |
566 | #define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE | |
a5cdc030 PM |
567 | RTNLGRP_IPV4_RULE, |
568 | #define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE | |
ac6d439d PM |
569 | RTNLGRP_IPV6_IFADDR, |
570 | #define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR | |
571 | RTNLGRP_IPV6_MROUTE, | |
572 | #define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE | |
573 | RTNLGRP_IPV6_ROUTE, | |
574 | #define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE | |
575 | RTNLGRP_IPV6_IFINFO, | |
576 | #define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO | |
577 | RTNLGRP_DECnet_IFADDR, | |
578 | #define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR | |
6b80ebed | 579 | RTNLGRP_NOP2, |
ac6d439d PM |
580 | RTNLGRP_DECnet_ROUTE, |
581 | #define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE | |
a8731cbf SW |
582 | RTNLGRP_DECnet_RULE, |
583 | #define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE | |
6b80ebed | 584 | RTNLGRP_NOP4, |
ac6d439d PM |
585 | RTNLGRP_IPV6_PREFIX, |
586 | #define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX | |
101367c2 TG |
587 | RTNLGRP_IPV6_RULE, |
588 | #define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE | |
31910575 PY |
589 | RTNLGRP_ND_USEROPT, |
590 | #define RTNLGRP_ND_USEROPT RTNLGRP_ND_USEROPT | |
bce7b154 RDC |
591 | RTNLGRP_PHONET_IFADDR, |
592 | #define RTNLGRP_PHONET_IFADDR RTNLGRP_PHONET_IFADDR | |
593 | RTNLGRP_PHONET_ROUTE, | |
594 | #define RTNLGRP_PHONET_ROUTE RTNLGRP_PHONET_ROUTE | |
ac6d439d PM |
595 | __RTNLGRP_MAX |
596 | }; | |
597 | #define RTNLGRP_MAX (__RTNLGRP_MAX - 1) | |
1da177e4 LT |
598 | |
599 | /* TC action piece */ | |
600 | struct tcamsg | |
601 | { | |
602 | unsigned char tca_family; | |
603 | unsigned char tca__pad1; | |
604 | unsigned short tca__pad2; | |
605 | }; | |
606 | #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg)))) | |
607 | #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg)) | |
608 | #define TCA_ACT_TAB 1 /* attr type must be >=1 */ | |
609 | #define TCAA_MAX 1 | |
610 | ||
611 | /* End of information exported to user level */ | |
612 | ||
613 | #ifdef __KERNEL__ | |
614 | ||
6756ae4b | 615 | #include <linux/mutex.h> |
1da177e4 | 616 | |
1da177e4 LT |
617 | static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str) |
618 | { | |
619 | int len = strlen(str) + 1; | |
620 | return len > rta->rta_len || memcmp(RTA_DATA(rta), str, len); | |
621 | } | |
622 | ||
97c53cac DL |
623 | extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo); |
624 | extern int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid); | |
1ce85fe4 PNA |
625 | extern void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, |
626 | u32 group, struct nlmsghdr *nlh, gfp_t flags); | |
97c53cac | 627 | extern void rtnl_set_sk_err(struct net *net, u32 group, int error); |
1da177e4 | 628 | extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); |
e3703b3d TG |
629 | extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, |
630 | u32 id, u32 ts, u32 tsage, long expires, | |
631 | u32 error); | |
1da177e4 LT |
632 | |
633 | extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data); | |
634 | ||
635 | #define RTA_PUT(skb, attrtype, attrlen, data) \ | |
636 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
637 | goto rtattr_failure; \ | |
638 | __rta_fill(skb, attrtype, attrlen, data); }) | |
639 | ||
d675c989 | 640 | #define RTA_APPEND(skb, attrlen, data) \ |
1da177e4 LT |
641 | ({ if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \ |
642 | goto rtattr_failure; \ | |
d675c989 TG |
643 | memcpy(skb_put(skb, attrlen), data, attrlen); }) |
644 | ||
645 | #define RTA_PUT_NOHDR(skb, attrlen, data) \ | |
b3563c4f | 646 | ({ RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \ |
27a884dc | 647 | memset(skb_tail_pointer(skb) - (RTA_ALIGN(attrlen) - attrlen), 0, \ |
b3563c4f | 648 | RTA_ALIGN(attrlen) - attrlen); }) |
00768244 | 649 | |
8f48bcd4 TG |
650 | #define RTA_PUT_U8(skb, attrtype, value) \ |
651 | ({ u8 _tmp = (value); \ | |
652 | RTA_PUT(skb, attrtype, sizeof(u8), &_tmp); }) | |
653 | ||
654 | #define RTA_PUT_U16(skb, attrtype, value) \ | |
655 | ({ u16 _tmp = (value); \ | |
656 | RTA_PUT(skb, attrtype, sizeof(u16), &_tmp); }) | |
657 | ||
00768244 TG |
658 | #define RTA_PUT_U32(skb, attrtype, value) \ |
659 | ({ u32 _tmp = (value); \ | |
660 | RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); }) | |
661 | ||
662 | #define RTA_PUT_U64(skb, attrtype, value) \ | |
663 | ({ u64 _tmp = (value); \ | |
664 | RTA_PUT(skb, attrtype, sizeof(u64), &_tmp); }) | |
665 | ||
666 | #define RTA_PUT_SECS(skb, attrtype, value) \ | |
667 | RTA_PUT_U64(skb, attrtype, (value) / HZ) | |
668 | ||
669 | #define RTA_PUT_MSECS(skb, attrtype, value) \ | |
670 | RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value)) | |
671 | ||
672 | #define RTA_PUT_STRING(skb, attrtype, value) \ | |
673 | RTA_PUT(skb, attrtype, strlen(value) + 1, value) | |
674 | ||
8f48bcd4 TG |
675 | #define RTA_PUT_FLAG(skb, attrtype) \ |
676 | RTA_PUT(skb, attrtype, 0, NULL); | |
677 | ||
00768244 | 678 | #define RTA_NEST(skb, type) \ |
27a884dc | 679 | ({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \ |
00768244 TG |
680 | RTA_PUT(skb, type, 0, NULL); \ |
681 | __start; }) | |
682 | ||
683 | #define RTA_NEST_END(skb, start) \ | |
27a884dc | 684 | ({ (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \ |
00768244 TG |
685 | (skb)->len; }) |
686 | ||
afdc3238 PM |
687 | #define RTA_NEST_COMPAT(skb, type, attrlen, data) \ |
688 | ({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \ | |
689 | RTA_PUT(skb, type, attrlen, data); \ | |
690 | RTA_NEST(skb, type); \ | |
691 | __start; }) | |
692 | ||
693 | #define RTA_NEST_COMPAT_END(skb, start) \ | |
694 | ({ struct rtattr *__nest = (void *)(start) + NLMSG_ALIGN((start)->rta_len); \ | |
695 | (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \ | |
696 | RTA_NEST_END(skb, __nest); \ | |
697 | (skb)->len; }) | |
698 | ||
00768244 | 699 | #define RTA_NEST_CANCEL(skb, start) \ |
c52a3f89 TG |
700 | ({ if (start) \ |
701 | skb_trim(skb, (unsigned char *) (start) - (skb)->data); \ | |
00768244 TG |
702 | -1; }) |
703 | ||
8f48bcd4 TG |
704 | #define RTA_GET_U8(rta) \ |
705 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u8)) \ | |
706 | goto rtattr_failure; \ | |
707 | *(u8 *) RTA_DATA(rta); }) | |
708 | ||
709 | #define RTA_GET_U16(rta) \ | |
710 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u16)) \ | |
711 | goto rtattr_failure; \ | |
712 | *(u16 *) RTA_DATA(rta); }) | |
713 | ||
00768244 TG |
714 | #define RTA_GET_U32(rta) \ |
715 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \ | |
716 | goto rtattr_failure; \ | |
717 | *(u32 *) RTA_DATA(rta); }) | |
718 | ||
719 | #define RTA_GET_U64(rta) \ | |
720 | ({ u64 _tmp; \ | |
721 | if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \ | |
722 | goto rtattr_failure; \ | |
723 | memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \ | |
724 | _tmp; }) | |
725 | ||
8f48bcd4 TG |
726 | #define RTA_GET_FLAG(rta) (!!(rta)) |
727 | ||
00768244 TG |
728 | #define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ) |
729 | #define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta))) | |
1da177e4 LT |
730 | |
731 | static inline struct rtattr * | |
732 | __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) | |
733 | { | |
734 | struct rtattr *rta; | |
735 | int size = RTA_LENGTH(attrlen); | |
736 | ||
737 | rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size)); | |
738 | rta->rta_type = attrtype; | |
739 | rta->rta_len = size; | |
b3563c4f | 740 | memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size); |
1da177e4 LT |
741 | return rta; |
742 | } | |
743 | ||
744 | #define __RTA_PUT(skb, attrtype, attrlen) \ | |
745 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
746 | goto rtattr_failure; \ | |
747 | __rta_reserve(skb, attrtype, attrlen); }) | |
748 | ||
749 | extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change); | |
750 | ||
6756ae4b | 751 | /* RTNL is used as a global lock for all changes to network configuration */ |
1da177e4 | 752 | extern void rtnl_lock(void); |
1da177e4 | 753 | extern void rtnl_unlock(void); |
6756ae4b | 754 | extern int rtnl_trylock(void); |
c9c1014b | 755 | extern int rtnl_is_locked(void); |
6756ae4b | 756 | |
1da177e4 | 757 | extern void rtnetlink_init(void); |
6756ae4b | 758 | extern void __rtnl_unlock(void); |
1da177e4 LT |
759 | |
760 | #define ASSERT_RTNL() do { \ | |
c9c1014b | 761 | if (unlikely(!rtnl_is_locked())) { \ |
1da177e4 LT |
762 | printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \ |
763 | __FILE__, __LINE__); \ | |
764 | dump_stack(); \ | |
765 | } \ | |
766 | } while(0) | |
767 | ||
9e762a4a PM |
768 | static inline u32 rtm_get_table(struct rtattr **rta, u8 table) |
769 | { | |
770 | return RTA_GET_U32(rta[RTA_TABLE-1]); | |
771 | rtattr_failure: | |
772 | return table; | |
773 | } | |
774 | ||
1da177e4 LT |
775 | #endif /* __KERNEL__ */ |
776 | ||
777 | ||
778 | #endif /* __LINUX_RTNETLINK_H */ |