Commit | Line | Data |
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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 | 9 | |
25239cee PM |
10 | /* rtnetlink families. Values up to 127 are reserved for real address |
11 | * families, values above 128 may be used arbitrarily. | |
12 | */ | |
13 | #define RTNL_FAMILY_IPMR 128 | |
d1db275d PM |
14 | #define RTNL_FAMILY_IP6MR 129 |
15 | #define RTNL_FAMILY_MAX 129 | |
25239cee | 16 | |
1da177e4 LT |
17 | /**** |
18 | * Routing/neighbour discovery messages. | |
19 | ****/ | |
20 | ||
21 | /* Types of messages */ | |
22 | ||
23 | enum { | |
24 | RTM_BASE = 16, | |
25 | #define RTM_BASE RTM_BASE | |
26 | ||
27 | RTM_NEWLINK = 16, | |
28 | #define RTM_NEWLINK RTM_NEWLINK | |
29 | RTM_DELLINK, | |
30 | #define RTM_DELLINK RTM_DELLINK | |
31 | RTM_GETLINK, | |
32 | #define RTM_GETLINK RTM_GETLINK | |
33 | RTM_SETLINK, | |
34 | #define RTM_SETLINK RTM_SETLINK | |
35 | ||
36 | RTM_NEWADDR = 20, | |
37 | #define RTM_NEWADDR RTM_NEWADDR | |
38 | RTM_DELADDR, | |
39 | #define RTM_DELADDR RTM_DELADDR | |
40 | RTM_GETADDR, | |
41 | #define RTM_GETADDR RTM_GETADDR | |
42 | ||
43 | RTM_NEWROUTE = 24, | |
44 | #define RTM_NEWROUTE RTM_NEWROUTE | |
45 | RTM_DELROUTE, | |
46 | #define RTM_DELROUTE RTM_DELROUTE | |
47 | RTM_GETROUTE, | |
48 | #define RTM_GETROUTE RTM_GETROUTE | |
49 | ||
50 | RTM_NEWNEIGH = 28, | |
51 | #define RTM_NEWNEIGH RTM_NEWNEIGH | |
52 | RTM_DELNEIGH, | |
53 | #define RTM_DELNEIGH RTM_DELNEIGH | |
54 | RTM_GETNEIGH, | |
55 | #define RTM_GETNEIGH RTM_GETNEIGH | |
56 | ||
57 | RTM_NEWRULE = 32, | |
58 | #define RTM_NEWRULE RTM_NEWRULE | |
59 | RTM_DELRULE, | |
60 | #define RTM_DELRULE RTM_DELRULE | |
61 | RTM_GETRULE, | |
62 | #define RTM_GETRULE RTM_GETRULE | |
63 | ||
64 | RTM_NEWQDISC = 36, | |
65 | #define RTM_NEWQDISC RTM_NEWQDISC | |
66 | RTM_DELQDISC, | |
67 | #define RTM_DELQDISC RTM_DELQDISC | |
68 | RTM_GETQDISC, | |
69 | #define RTM_GETQDISC RTM_GETQDISC | |
70 | ||
71 | RTM_NEWTCLASS = 40, | |
72 | #define RTM_NEWTCLASS RTM_NEWTCLASS | |
73 | RTM_DELTCLASS, | |
74 | #define RTM_DELTCLASS RTM_DELTCLASS | |
75 | RTM_GETTCLASS, | |
76 | #define RTM_GETTCLASS RTM_GETTCLASS | |
77 | ||
78 | RTM_NEWTFILTER = 44, | |
79 | #define RTM_NEWTFILTER RTM_NEWTFILTER | |
80 | RTM_DELTFILTER, | |
81 | #define RTM_DELTFILTER RTM_DELTFILTER | |
82 | RTM_GETTFILTER, | |
83 | #define RTM_GETTFILTER RTM_GETTFILTER | |
84 | ||
85 | RTM_NEWACTION = 48, | |
86 | #define RTM_NEWACTION RTM_NEWACTION | |
87 | RTM_DELACTION, | |
88 | #define RTM_DELACTION RTM_DELACTION | |
89 | RTM_GETACTION, | |
90 | #define RTM_GETACTION RTM_GETACTION | |
91 | ||
92 | RTM_NEWPREFIX = 52, | |
93 | #define RTM_NEWPREFIX RTM_NEWPREFIX | |
1da177e4 LT |
94 | |
95 | RTM_GETMULTICAST = 58, | |
96 | #define RTM_GETMULTICAST RTM_GETMULTICAST | |
97 | ||
98 | RTM_GETANYCAST = 62, | |
99 | #define RTM_GETANYCAST RTM_GETANYCAST | |
100 | ||
c7fb64db TG |
101 | RTM_NEWNEIGHTBL = 64, |
102 | #define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL | |
103 | RTM_GETNEIGHTBL = 66, | |
104 | #define RTM_GETNEIGHTBL RTM_GETNEIGHTBL | |
105 | RTM_SETNEIGHTBL, | |
106 | #define RTM_SETNEIGHTBL RTM_SETNEIGHTBL | |
107 | ||
31910575 PY |
108 | RTM_NEWNDUSEROPT = 68, |
109 | #define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT | |
110 | ||
2a8cc6c8 YH |
111 | RTM_NEWADDRLABEL = 72, |
112 | #define RTM_NEWADDRLABEL RTM_NEWADDRLABEL | |
113 | RTM_DELADDRLABEL, | |
5d5d9c97 | 114 | #define RTM_DELADDRLABEL RTM_DELADDRLABEL |
2a8cc6c8 YH |
115 | RTM_GETADDRLABEL, |
116 | #define RTM_GETADDRLABEL RTM_GETADDRLABEL | |
117 | ||
2f90b865 AD |
118 | RTM_GETDCB = 78, |
119 | #define RTM_GETDCB RTM_GETDCB | |
120 | RTM_SETDCB, | |
121 | #define RTM_SETDCB RTM_SETDCB | |
122 | ||
d775fc09 TG |
123 | __RTM_MAX, |
124 | #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) | |
1da177e4 LT |
125 | }; |
126 | ||
db46edc6 TG |
127 | #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) |
128 | #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2) | |
f90a0a74 TG |
129 | #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) |
130 | ||
1da177e4 LT |
131 | /* |
132 | Generic structure for encapsulation of optional route information. | |
133 | It is reminiscent of sockaddr, but with sa_family replaced | |
134 | with attribute type. | |
135 | */ | |
136 | ||
d94d9fee | 137 | struct rtattr { |
1da177e4 LT |
138 | unsigned short rta_len; |
139 | unsigned short rta_type; | |
140 | }; | |
141 | ||
142 | /* Macros to handle rtattributes */ | |
143 | ||
144 | #define RTA_ALIGNTO 4 | |
145 | #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) ) | |
146 | #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ | |
147 | (rta)->rta_len >= sizeof(struct rtattr) && \ | |
148 | (rta)->rta_len <= (len)) | |
149 | #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ | |
150 | (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len))) | |
151 | #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len)) | |
152 | #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) | |
153 | #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0))) | |
154 | #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) | |
155 | ||
156 | ||
157 | ||
158 | ||
159 | /****************************************************************************** | |
160 | * Definitions used in routing table administration. | |
161 | ****/ | |
162 | ||
d94d9fee | 163 | struct rtmsg { |
1da177e4 LT |
164 | unsigned char rtm_family; |
165 | unsigned char rtm_dst_len; | |
166 | unsigned char rtm_src_len; | |
167 | unsigned char rtm_tos; | |
168 | ||
169 | unsigned char rtm_table; /* Routing table id */ | |
170 | unsigned char rtm_protocol; /* Routing protocol; see below */ | |
171 | unsigned char rtm_scope; /* See below */ | |
172 | unsigned char rtm_type; /* See below */ | |
173 | ||
174 | unsigned rtm_flags; | |
175 | }; | |
176 | ||
177 | /* rtm_type */ | |
178 | ||
d94d9fee | 179 | enum { |
1da177e4 LT |
180 | RTN_UNSPEC, |
181 | RTN_UNICAST, /* Gateway or direct route */ | |
182 | RTN_LOCAL, /* Accept locally */ | |
183 | RTN_BROADCAST, /* Accept locally as broadcast, | |
184 | send as broadcast */ | |
185 | RTN_ANYCAST, /* Accept locally as broadcast, | |
186 | but send as unicast */ | |
187 | RTN_MULTICAST, /* Multicast route */ | |
188 | RTN_BLACKHOLE, /* Drop */ | |
189 | RTN_UNREACHABLE, /* Destination is unreachable */ | |
190 | RTN_PROHIBIT, /* Administratively prohibited */ | |
191 | RTN_THROW, /* Not in this table */ | |
192 | RTN_NAT, /* Translate this address */ | |
193 | RTN_XRESOLVE, /* Use external resolver */ | |
194 | __RTN_MAX | |
195 | }; | |
196 | ||
197 | #define RTN_MAX (__RTN_MAX - 1) | |
198 | ||
199 | ||
200 | /* rtm_protocol */ | |
201 | ||
202 | #define RTPROT_UNSPEC 0 | |
203 | #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; | |
204 | not used by current IPv4 */ | |
205 | #define RTPROT_KERNEL 2 /* Route installed by kernel */ | |
206 | #define RTPROT_BOOT 3 /* Route installed during boot */ | |
207 | #define RTPROT_STATIC 4 /* Route installed by administrator */ | |
208 | ||
209 | /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; | |
210 | they are just passed from user and back as is. | |
211 | It will be used by hypothetical multiple routing daemons. | |
212 | Note that protocol values should be standardized in order to | |
213 | avoid conflicts. | |
214 | */ | |
215 | ||
216 | #define RTPROT_GATED 8 /* Apparently, GateD */ | |
217 | #define RTPROT_RA 9 /* RDISC/ND router advertisements */ | |
218 | #define RTPROT_MRT 10 /* Merit MRT */ | |
219 | #define RTPROT_ZEBRA 11 /* Zebra */ | |
220 | #define RTPROT_BIRD 12 /* BIRD */ | |
221 | #define RTPROT_DNROUTED 13 /* DECnet routing daemon */ | |
222 | #define RTPROT_XORP 14 /* XORP */ | |
99cae7fc | 223 | #define RTPROT_NTK 15 /* Netsukuku */ |
2e1ab634 | 224 | #define RTPROT_DHCP 16 /* DHCP client */ |
1da177e4 LT |
225 | |
226 | /* rtm_scope | |
227 | ||
228 | Really it is not scope, but sort of distance to the destination. | |
229 | NOWHERE are reserved for not existing destinations, HOST is our | |
230 | local addresses, LINK are destinations, located on directly attached | |
231 | link and UNIVERSE is everywhere in the Universe. | |
232 | ||
233 | Intermediate values are also possible f.e. interior routes | |
234 | could be assigned a value between UNIVERSE and LINK. | |
235 | */ | |
236 | ||
d94d9fee | 237 | enum rt_scope_t { |
1da177e4 LT |
238 | RT_SCOPE_UNIVERSE=0, |
239 | /* User defined values */ | |
240 | RT_SCOPE_SITE=200, | |
241 | RT_SCOPE_LINK=253, | |
242 | RT_SCOPE_HOST=254, | |
243 | RT_SCOPE_NOWHERE=255 | |
244 | }; | |
245 | ||
246 | /* rtm_flags */ | |
247 | ||
248 | #define RTM_F_NOTIFY 0x100 /* Notify user of route change */ | |
249 | #define RTM_F_CLONED 0x200 /* This route is cloned */ | |
250 | #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ | |
251 | #define RTM_F_PREFIX 0x800 /* Prefix addresses */ | |
252 | ||
253 | /* Reserved table identifiers */ | |
254 | ||
d94d9fee | 255 | enum rt_class_t { |
1da177e4 LT |
256 | RT_TABLE_UNSPEC=0, |
257 | /* User defined values */ | |
709772e6 | 258 | RT_TABLE_COMPAT=252, |
1da177e4 LT |
259 | RT_TABLE_DEFAULT=253, |
260 | RT_TABLE_MAIN=254, | |
261 | RT_TABLE_LOCAL=255, | |
b801f549 | 262 | RT_TABLE_MAX=0xFFFFFFFF |
1da177e4 | 263 | }; |
1da177e4 LT |
264 | |
265 | ||
266 | /* Routing message attributes */ | |
267 | ||
d94d9fee | 268 | enum rtattr_type_t { |
1da177e4 LT |
269 | RTA_UNSPEC, |
270 | RTA_DST, | |
271 | RTA_SRC, | |
272 | RTA_IIF, | |
273 | RTA_OIF, | |
274 | RTA_GATEWAY, | |
275 | RTA_PRIORITY, | |
276 | RTA_PREFSRC, | |
277 | RTA_METRICS, | |
278 | RTA_MULTIPATH, | |
1f9d11c7 | 279 | RTA_PROTOINFO, /* no longer used */ |
1da177e4 LT |
280 | RTA_FLOW, |
281 | RTA_CACHEINFO, | |
1f9d11c7 | 282 | RTA_SESSION, /* no longer used */ |
e06e7c61 | 283 | RTA_MP_ALGO, /* no longer used */ |
9e762a4a | 284 | RTA_TABLE, |
963bfeee | 285 | RTA_MARK, |
1da177e4 LT |
286 | __RTA_MAX |
287 | }; | |
288 | ||
289 | #define RTA_MAX (__RTA_MAX - 1) | |
290 | ||
291 | #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg)))) | |
292 | #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) | |
293 | ||
294 | /* RTM_MULTIPATH --- array of struct rtnexthop. | |
295 | * | |
296 | * "struct rtnexthop" describes all necessary nexthop information, | |
297 | * i.e. parameters of path to a destination via this nexthop. | |
298 | * | |
299 | * At the moment it is impossible to set different prefsrc, mtu, window | |
300 | * and rtt for different paths from multipath. | |
301 | */ | |
302 | ||
d94d9fee | 303 | struct rtnexthop { |
1da177e4 LT |
304 | unsigned short rtnh_len; |
305 | unsigned char rtnh_flags; | |
306 | unsigned char rtnh_hops; | |
307 | int rtnh_ifindex; | |
308 | }; | |
309 | ||
310 | /* rtnh_flags */ | |
311 | ||
312 | #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ | |
313 | #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ | |
314 | #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ | |
315 | ||
316 | /* Macros to handle hexthops */ | |
317 | ||
318 | #define RTNH_ALIGNTO 4 | |
319 | #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) ) | |
320 | #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ | |
321 | ((int)(rtnh)->rtnh_len) <= (len)) | |
322 | #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len))) | |
323 | #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len)) | |
324 | #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len)) | |
325 | #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) | |
326 | ||
327 | /* RTM_CACHEINFO */ | |
328 | ||
d94d9fee | 329 | struct rta_cacheinfo { |
1da177e4 LT |
330 | __u32 rta_clntref; |
331 | __u32 rta_lastuse; | |
332 | __s32 rta_expires; | |
333 | __u32 rta_error; | |
334 | __u32 rta_used; | |
335 | ||
336 | #define RTNETLINK_HAVE_PEERINFO 1 | |
337 | __u32 rta_id; | |
338 | __u32 rta_ts; | |
339 | __u32 rta_tsage; | |
340 | }; | |
341 | ||
342 | /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ | |
343 | ||
d94d9fee | 344 | enum { |
1da177e4 LT |
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 | |
31d12926 | 373 | RTAX_INITRWND, |
374 | #define RTAX_INITRWND RTAX_INITRWND | |
1da177e4 LT |
375 | __RTAX_MAX |
376 | }; | |
377 | ||
378 | #define RTAX_MAX (__RTAX_MAX - 1) | |
379 | ||
380 | #define RTAX_FEATURE_ECN 0x00000001 | |
bb5b7c11 DM |
381 | #define RTAX_FEATURE_SACK 0x00000002 |
382 | #define RTAX_FEATURE_TIMESTAMP 0x00000004 | |
1da177e4 LT |
383 | #define RTAX_FEATURE_ALLFRAG 0x00000008 |
384 | ||
d94d9fee | 385 | struct rta_session { |
1da177e4 | 386 | __u8 proto; |
8a47077a PM |
387 | __u8 pad1; |
388 | __u16 pad2; | |
1da177e4 LT |
389 | |
390 | union { | |
391 | struct { | |
392 | __u16 sport; | |
393 | __u16 dport; | |
394 | } ports; | |
395 | ||
396 | struct { | |
397 | __u8 type; | |
398 | __u8 code; | |
399 | __u16 ident; | |
400 | } icmpt; | |
401 | ||
402 | __u32 spi; | |
403 | } u; | |
404 | }; | |
405 | ||
1da177e4 LT |
406 | /**** |
407 | * General form of address family dependent message. | |
408 | ****/ | |
409 | ||
d94d9fee | 410 | struct rtgenmsg { |
1da177e4 LT |
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 | ||
d94d9fee | 423 | struct ifinfomsg { |
1da177e4 LT |
424 | unsigned char ifi_family; |
425 | unsigned char __ifi_pad; | |
426 | unsigned short ifi_type; /* ARPHRD_* */ | |
427 | int ifi_index; /* Link index */ | |
428 | unsigned ifi_flags; /* IFF_* flags */ | |
429 | unsigned ifi_change; /* IFF_* change mask */ | |
430 | }; | |
431 | ||
432 | /******************************************************************** | |
433 | * prefix information | |
434 | ****/ | |
435 | ||
d94d9fee | 436 | struct prefixmsg { |
1da177e4 | 437 | unsigned char prefix_family; |
8a47077a PM |
438 | unsigned char prefix_pad1; |
439 | unsigned short prefix_pad2; | |
1da177e4 LT |
440 | int prefix_ifindex; |
441 | unsigned char prefix_type; | |
442 | unsigned char prefix_len; | |
443 | unsigned char prefix_flags; | |
8a47077a | 444 | unsigned char prefix_pad3; |
1da177e4 LT |
445 | }; |
446 | ||
447 | enum | |
448 | { | |
449 | PREFIX_UNSPEC, | |
450 | PREFIX_ADDRESS, | |
451 | PREFIX_CACHEINFO, | |
452 | __PREFIX_MAX | |
453 | }; | |
454 | ||
455 | #define PREFIX_MAX (__PREFIX_MAX - 1) | |
456 | ||
d94d9fee | 457 | struct prefix_cacheinfo { |
1da177e4 LT |
458 | __u32 preferred_time; |
459 | __u32 valid_time; | |
460 | }; | |
461 | ||
1da177e4 LT |
462 | |
463 | /***************************************************************** | |
464 | * Traffic control messages. | |
465 | ****/ | |
466 | ||
d94d9fee | 467 | struct tcmsg { |
1da177e4 LT |
468 | unsigned char tcm_family; |
469 | unsigned char tcm__pad1; | |
470 | unsigned short tcm__pad2; | |
471 | int tcm_ifindex; | |
472 | __u32 tcm_handle; | |
473 | __u32 tcm_parent; | |
474 | __u32 tcm_info; | |
475 | }; | |
476 | ||
d94d9fee | 477 | enum { |
1da177e4 LT |
478 | TCA_UNSPEC, |
479 | TCA_KIND, | |
480 | TCA_OPTIONS, | |
481 | TCA_STATS, | |
482 | TCA_XSTATS, | |
483 | TCA_RATE, | |
484 | TCA_FCNT, | |
485 | TCA_STATS2, | |
175f9c1b | 486 | TCA_STAB, |
1da177e4 LT |
487 | __TCA_MAX |
488 | }; | |
489 | ||
490 | #define TCA_MAX (__TCA_MAX - 1) | |
491 | ||
492 | #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg)))) | |
493 | #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg)) | |
494 | ||
31910575 PY |
495 | /******************************************************************** |
496 | * Neighbor Discovery userland options | |
497 | ****/ | |
498 | ||
d94d9fee | 499 | struct nduseroptmsg { |
31910575 PY |
500 | unsigned char nduseropt_family; |
501 | unsigned char nduseropt_pad1; | |
502 | unsigned short nduseropt_opts_len; /* Total length of options */ | |
dbb2ed24 | 503 | int nduseropt_ifindex; |
31910575 PY |
504 | __u8 nduseropt_icmp_type; |
505 | __u8 nduseropt_icmp_code; | |
506 | unsigned short nduseropt_pad2; | |
dbb2ed24 | 507 | unsigned int nduseropt_pad3; |
31910575 PY |
508 | /* Followed by one or more ND options */ |
509 | }; | |
510 | ||
d94d9fee | 511 | enum { |
31910575 PY |
512 | NDUSEROPT_UNSPEC, |
513 | NDUSEROPT_SRCADDR, | |
514 | __NDUSEROPT_MAX | |
515 | }; | |
516 | ||
517 | #define NDUSEROPT_MAX (__NDUSEROPT_MAX - 1) | |
518 | ||
ac6d439d PM |
519 | #ifndef __KERNEL__ |
520 | /* RTnetlink multicast groups - backwards compatibility for userspace */ | |
1da177e4 LT |
521 | #define RTMGRP_LINK 1 |
522 | #define RTMGRP_NOTIFY 2 | |
523 | #define RTMGRP_NEIGH 4 | |
524 | #define RTMGRP_TC 8 | |
525 | ||
526 | #define RTMGRP_IPV4_IFADDR 0x10 | |
527 | #define RTMGRP_IPV4_MROUTE 0x20 | |
528 | #define RTMGRP_IPV4_ROUTE 0x40 | |
a5cdc030 | 529 | #define RTMGRP_IPV4_RULE 0x80 |
1da177e4 LT |
530 | |
531 | #define RTMGRP_IPV6_IFADDR 0x100 | |
532 | #define RTMGRP_IPV6_MROUTE 0x200 | |
533 | #define RTMGRP_IPV6_ROUTE 0x400 | |
534 | #define RTMGRP_IPV6_IFINFO 0x800 | |
535 | ||
536 | #define RTMGRP_DECnet_IFADDR 0x1000 | |
537 | #define RTMGRP_DECnet_ROUTE 0x4000 | |
538 | ||
539 | #define RTMGRP_IPV6_PREFIX 0x20000 | |
ac6d439d PM |
540 | #endif |
541 | ||
542 | /* RTnetlink multicast groups */ | |
543 | enum rtnetlink_groups { | |
544 | RTNLGRP_NONE, | |
545 | #define RTNLGRP_NONE RTNLGRP_NONE | |
546 | RTNLGRP_LINK, | |
547 | #define RTNLGRP_LINK RTNLGRP_LINK | |
548 | RTNLGRP_NOTIFY, | |
549 | #define RTNLGRP_NOTIFY RTNLGRP_NOTIFY | |
550 | RTNLGRP_NEIGH, | |
551 | #define RTNLGRP_NEIGH RTNLGRP_NEIGH | |
552 | RTNLGRP_TC, | |
553 | #define RTNLGRP_TC RTNLGRP_TC | |
554 | RTNLGRP_IPV4_IFADDR, | |
555 | #define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR | |
556 | RTNLGRP_IPV4_MROUTE, | |
557 | #define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE | |
558 | RTNLGRP_IPV4_ROUTE, | |
559 | #define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE | |
a5cdc030 PM |
560 | RTNLGRP_IPV4_RULE, |
561 | #define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE | |
ac6d439d PM |
562 | RTNLGRP_IPV6_IFADDR, |
563 | #define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR | |
564 | RTNLGRP_IPV6_MROUTE, | |
565 | #define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE | |
566 | RTNLGRP_IPV6_ROUTE, | |
567 | #define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE | |
568 | RTNLGRP_IPV6_IFINFO, | |
569 | #define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO | |
570 | RTNLGRP_DECnet_IFADDR, | |
571 | #define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR | |
6b80ebed | 572 | RTNLGRP_NOP2, |
ac6d439d PM |
573 | RTNLGRP_DECnet_ROUTE, |
574 | #define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE | |
a8731cbf SW |
575 | RTNLGRP_DECnet_RULE, |
576 | #define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE | |
6b80ebed | 577 | RTNLGRP_NOP4, |
ac6d439d PM |
578 | RTNLGRP_IPV6_PREFIX, |
579 | #define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX | |
101367c2 TG |
580 | RTNLGRP_IPV6_RULE, |
581 | #define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE | |
31910575 PY |
582 | RTNLGRP_ND_USEROPT, |
583 | #define RTNLGRP_ND_USEROPT RTNLGRP_ND_USEROPT | |
bce7b154 RDC |
584 | RTNLGRP_PHONET_IFADDR, |
585 | #define RTNLGRP_PHONET_IFADDR RTNLGRP_PHONET_IFADDR | |
586 | RTNLGRP_PHONET_ROUTE, | |
587 | #define RTNLGRP_PHONET_ROUTE RTNLGRP_PHONET_ROUTE | |
ac6d439d PM |
588 | __RTNLGRP_MAX |
589 | }; | |
590 | #define RTNLGRP_MAX (__RTNLGRP_MAX - 1) | |
1da177e4 LT |
591 | |
592 | /* TC action piece */ | |
d94d9fee | 593 | struct tcamsg { |
1da177e4 LT |
594 | unsigned char tca_family; |
595 | unsigned char tca__pad1; | |
596 | unsigned short tca__pad2; | |
597 | }; | |
598 | #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg)))) | |
599 | #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg)) | |
600 | #define TCA_ACT_TAB 1 /* attr type must be >=1 */ | |
601 | #define TCAA_MAX 1 | |
602 | ||
603 | /* End of information exported to user level */ | |
604 | ||
605 | #ifdef __KERNEL__ | |
606 | ||
6756ae4b | 607 | #include <linux/mutex.h> |
3b42a96d | 608 | #include <linux/netdevice.h> |
1da177e4 | 609 | |
1da177e4 LT |
610 | static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str) |
611 | { | |
612 | int len = strlen(str) + 1; | |
613 | return len > rta->rta_len || memcmp(RTA_DATA(rta), str, len); | |
614 | } | |
615 | ||
97c53cac DL |
616 | extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo); |
617 | extern int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid); | |
1ce85fe4 PNA |
618 | extern void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, |
619 | u32 group, struct nlmsghdr *nlh, gfp_t flags); | |
97c53cac | 620 | extern void rtnl_set_sk_err(struct net *net, u32 group, int error); |
1da177e4 | 621 | extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); |
e3703b3d TG |
622 | extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, |
623 | u32 id, u32 ts, u32 tsage, long expires, | |
624 | u32 error); | |
1da177e4 LT |
625 | |
626 | extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data); | |
627 | ||
628 | #define RTA_PUT(skb, attrtype, attrlen, data) \ | |
629 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
630 | goto rtattr_failure; \ | |
631 | __rta_fill(skb, attrtype, attrlen, data); }) | |
632 | ||
d675c989 | 633 | #define RTA_APPEND(skb, attrlen, data) \ |
1da177e4 LT |
634 | ({ if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \ |
635 | goto rtattr_failure; \ | |
d675c989 TG |
636 | memcpy(skb_put(skb, attrlen), data, attrlen); }) |
637 | ||
638 | #define RTA_PUT_NOHDR(skb, attrlen, data) \ | |
b3563c4f | 639 | ({ RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \ |
27a884dc | 640 | memset(skb_tail_pointer(skb) - (RTA_ALIGN(attrlen) - attrlen), 0, \ |
b3563c4f | 641 | RTA_ALIGN(attrlen) - attrlen); }) |
00768244 | 642 | |
8f48bcd4 TG |
643 | #define RTA_PUT_U8(skb, attrtype, value) \ |
644 | ({ u8 _tmp = (value); \ | |
645 | RTA_PUT(skb, attrtype, sizeof(u8), &_tmp); }) | |
646 | ||
647 | #define RTA_PUT_U16(skb, attrtype, value) \ | |
648 | ({ u16 _tmp = (value); \ | |
649 | RTA_PUT(skb, attrtype, sizeof(u16), &_tmp); }) | |
650 | ||
00768244 TG |
651 | #define RTA_PUT_U32(skb, attrtype, value) \ |
652 | ({ u32 _tmp = (value); \ | |
653 | RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); }) | |
654 | ||
655 | #define RTA_PUT_U64(skb, attrtype, value) \ | |
656 | ({ u64 _tmp = (value); \ | |
657 | RTA_PUT(skb, attrtype, sizeof(u64), &_tmp); }) | |
658 | ||
659 | #define RTA_PUT_SECS(skb, attrtype, value) \ | |
660 | RTA_PUT_U64(skb, attrtype, (value) / HZ) | |
661 | ||
662 | #define RTA_PUT_MSECS(skb, attrtype, value) \ | |
663 | RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value)) | |
664 | ||
665 | #define RTA_PUT_STRING(skb, attrtype, value) \ | |
666 | RTA_PUT(skb, attrtype, strlen(value) + 1, value) | |
667 | ||
8f48bcd4 TG |
668 | #define RTA_PUT_FLAG(skb, attrtype) \ |
669 | RTA_PUT(skb, attrtype, 0, NULL); | |
670 | ||
00768244 | 671 | #define RTA_NEST(skb, type) \ |
27a884dc | 672 | ({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \ |
00768244 TG |
673 | RTA_PUT(skb, type, 0, NULL); \ |
674 | __start; }) | |
675 | ||
676 | #define RTA_NEST_END(skb, start) \ | |
27a884dc | 677 | ({ (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \ |
00768244 TG |
678 | (skb)->len; }) |
679 | ||
afdc3238 PM |
680 | #define RTA_NEST_COMPAT(skb, type, attrlen, data) \ |
681 | ({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \ | |
682 | RTA_PUT(skb, type, attrlen, data); \ | |
683 | RTA_NEST(skb, type); \ | |
684 | __start; }) | |
685 | ||
686 | #define RTA_NEST_COMPAT_END(skb, start) \ | |
687 | ({ struct rtattr *__nest = (void *)(start) + NLMSG_ALIGN((start)->rta_len); \ | |
688 | (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \ | |
689 | RTA_NEST_END(skb, __nest); \ | |
690 | (skb)->len; }) | |
691 | ||
00768244 | 692 | #define RTA_NEST_CANCEL(skb, start) \ |
c52a3f89 TG |
693 | ({ if (start) \ |
694 | skb_trim(skb, (unsigned char *) (start) - (skb)->data); \ | |
00768244 TG |
695 | -1; }) |
696 | ||
8f48bcd4 TG |
697 | #define RTA_GET_U8(rta) \ |
698 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u8)) \ | |
699 | goto rtattr_failure; \ | |
700 | *(u8 *) RTA_DATA(rta); }) | |
701 | ||
702 | #define RTA_GET_U16(rta) \ | |
703 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u16)) \ | |
704 | goto rtattr_failure; \ | |
705 | *(u16 *) RTA_DATA(rta); }) | |
706 | ||
00768244 TG |
707 | #define RTA_GET_U32(rta) \ |
708 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \ | |
709 | goto rtattr_failure; \ | |
710 | *(u32 *) RTA_DATA(rta); }) | |
711 | ||
712 | #define RTA_GET_U64(rta) \ | |
713 | ({ u64 _tmp; \ | |
714 | if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \ | |
715 | goto rtattr_failure; \ | |
716 | memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \ | |
717 | _tmp; }) | |
718 | ||
8f48bcd4 TG |
719 | #define RTA_GET_FLAG(rta) (!!(rta)) |
720 | ||
00768244 TG |
721 | #define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ) |
722 | #define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta))) | |
1da177e4 LT |
723 | |
724 | static inline struct rtattr * | |
725 | __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) | |
726 | { | |
727 | struct rtattr *rta; | |
728 | int size = RTA_LENGTH(attrlen); | |
729 | ||
730 | rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size)); | |
731 | rta->rta_type = attrtype; | |
732 | rta->rta_len = size; | |
b3563c4f | 733 | memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size); |
1da177e4 LT |
734 | return rta; |
735 | } | |
736 | ||
737 | #define __RTA_PUT(skb, attrtype, attrlen) \ | |
738 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ | |
739 | goto rtattr_failure; \ | |
740 | __rta_reserve(skb, attrtype, attrlen); }) | |
741 | ||
742 | extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change); | |
743 | ||
6756ae4b | 744 | /* RTNL is used as a global lock for all changes to network configuration */ |
1da177e4 | 745 | extern void rtnl_lock(void); |
1da177e4 | 746 | extern void rtnl_unlock(void); |
6756ae4b | 747 | extern int rtnl_trylock(void); |
c9c1014b | 748 | extern int rtnl_is_locked(void); |
a898def2 PM |
749 | #ifdef CONFIG_PROVE_LOCKING |
750 | extern int lockdep_rtnl_is_held(void); | |
751 | #endif /* #ifdef CONFIG_PROVE_LOCKING */ | |
6756ae4b | 752 | |
a6e0fc85 ED |
753 | /** |
754 | * rcu_dereference_rtnl - rcu_dereference with debug checking | |
755 | * @p: The pointer to read, prior to dereferencing | |
756 | * | |
757 | * Do an rcu_dereference(p), but check caller either holds rcu_read_lock() | |
29fa060e | 758 | * or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference() |
a6e0fc85 ED |
759 | */ |
760 | #define rcu_dereference_rtnl(p) \ | |
761 | rcu_dereference_check(p, rcu_read_lock_held() || \ | |
762 | lockdep_rtnl_is_held()) | |
763 | ||
7dff59ef | 764 | /** |
29fa060e | 765 | * rtnl_dereference - fetch RCU pointer when updates are prevented by RTNL |
7dff59ef ED |
766 | * @p: The pointer to read, prior to dereferencing |
767 | * | |
29fa060e DM |
768 | * Return the value of the specified RCU-protected pointer, but omit |
769 | * both the smp_read_barrier_depends() and the ACCESS_ONCE(), because | |
770 | * caller holds RTNL. | |
7dff59ef ED |
771 | */ |
772 | #define rtnl_dereference(p) \ | |
29fa060e | 773 | rcu_dereference_protected(p, lockdep_rtnl_is_held()) |
7dff59ef | 774 | |
24824a09 ED |
775 | static inline struct netdev_queue *dev_ingress_queue(struct net_device *dev) |
776 | { | |
777 | return rtnl_dereference(dev->ingress_queue); | |
778 | } | |
779 | ||
780 | extern struct netdev_queue *dev_ingress_queue_create(struct net_device *dev); | |
781 | ||
1da177e4 | 782 | extern void rtnetlink_init(void); |
6756ae4b | 783 | extern void __rtnl_unlock(void); |
1da177e4 LT |
784 | |
785 | #define ASSERT_RTNL() do { \ | |
c9c1014b | 786 | if (unlikely(!rtnl_is_locked())) { \ |
1da177e4 LT |
787 | printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \ |
788 | __FILE__, __LINE__); \ | |
789 | dump_stack(); \ | |
790 | } \ | |
791 | } while(0) | |
792 | ||
9e762a4a PM |
793 | static inline u32 rtm_get_table(struct rtattr **rta, u8 table) |
794 | { | |
795 | return RTA_GET_U32(rta[RTA_TABLE-1]); | |
796 | rtattr_failure: | |
797 | return table; | |
798 | } | |
799 | ||
1da177e4 LT |
800 | #endif /* __KERNEL__ */ |
801 | ||
802 | ||
803 | #endif /* __LINUX_RTNETLINK_H */ |