rtnetlink.h revision ea8fc1047d2b88ae1d123e3f79dbffbc2a3fa70c
1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef __LINUX_RTNETLINK_H 2b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov#define __LINUX_RTNETLINK_H 3b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <linux/netlink.h> 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/**** 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * Routing/neighbour discovery messages. 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ****/ 9b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov 10b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov/* Types of messages */ 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownenum { 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_BASE = 16, 14b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov#define RTM_BASE RTM_BASE 15b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_NEWLINK = 16, 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define RTM_NEWLINK RTM_NEWLINK 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_DELLINK, 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define RTM_DELLINK RTM_DELLINK 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_GETLINK, 21b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov#define RTM_GETLINK RTM_GETLINK 22b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov RTM_SETLINK, 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define RTM_SETLINK RTM_SETLINK 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_NEWADDR = 20, 26b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov#define RTM_NEWADDR RTM_NEWADDR 27b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov RTM_DELADDR, 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define RTM_DELADDR RTM_DELADDR 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_GETADDR, 30b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov#define RTM_GETADDR RTM_GETADDR 31b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_NEWROUTE = 24, 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define RTM_NEWROUTE RTM_NEWROUTE 34b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov RTM_DELROUTE, 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define RTM_DELROUTE RTM_DELROUTE 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RTM_GETROUTE, 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#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 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 99 __RTM_MAX, 100#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) 101}; 102 103#define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) 104#define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2) 105#define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) 106 107/* 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 113struct 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 140struct 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 157enum 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 214enum 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 233enum 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 248enum 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 282struct 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 309struct 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 325enum 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 363struct 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 388struct 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 397enum 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 421struct 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 445struct 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 456enum 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 495struct nda_cacheinfo 496{ 497 __u32 ndm_confirmed; 498 __u32 ndm_used; 499 __u32 ndm_updated; 500 __u32 ndm_refcnt; 501}; 502 503 504/***************************************************************** 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 529struct 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 543enum { 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 564struct ndtmsg 565{ 566 __u8 ndtm_family; 567 __u8 ndtm_pad1; 568 __u16 ndtm_pad2; 569}; 570 571struct 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 584enum { 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)) 601 602 603/**** 604 * General form of address family dependent message. 605 ****/ 606 607struct 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 621struct 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 635struct 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 644enum 645{ 646 PREFIX_UNSPEC, 647 PREFIX_ADDRESS, 648 PREFIX_CACHEINFO, 649 __PREFIX_MAX 650}; 651 652#define PREFIX_MAX (__PREFIX_MAX - 1) 653 654struct 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 */ 661struct 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 */ 695struct 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 705enum 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 */ 770enum 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 783struct 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 795struct 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 806enum 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 */ 847struct 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 */ 859 860 861 862#endif /* __LINUX_RTNETLINK_H */ 863