Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Thomas Graf | c7fb64d | 2005-06-18 22:50:55 -0700 | [diff] [blame] | 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 | |
Thomas Graf | d775fc0 | 2005-05-03 14:27:35 -0700 | [diff] [blame] | 99 | __RTM_MAX, |
| 100 | #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | }; |
| 102 | |
Thomas Graf | db46edc | 2005-05-03 14:29:39 -0700 | [diff] [blame] | 103 | #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) |
| 104 | #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2) |
Thomas Graf | f90a0a7 | 2005-05-03 14:29:00 -0700 | [diff] [blame] | 105 | #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) |
| 106 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | /* |
| 108 | Generic structure for encapsulation of optional route information. |
| 109 | It is reminiscent of sockaddr, but with sa_family replaced |
| 110 | with attribute type. |
| 111 | */ |
| 112 | |
| 113 | struct rtattr |
| 114 | { |
| 115 | unsigned short rta_len; |
| 116 | unsigned short rta_type; |
| 117 | }; |
| 118 | |
| 119 | /* Macros to handle rtattributes */ |
| 120 | |
| 121 | #define RTA_ALIGNTO 4 |
| 122 | #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) ) |
| 123 | #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ |
| 124 | (rta)->rta_len >= sizeof(struct rtattr) && \ |
| 125 | (rta)->rta_len <= (len)) |
| 126 | #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ |
| 127 | (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len))) |
| 128 | #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len)) |
| 129 | #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) |
| 130 | #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0))) |
| 131 | #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) |
| 132 | |
| 133 | |
| 134 | |
| 135 | |
| 136 | /****************************************************************************** |
| 137 | * Definitions used in routing table administration. |
| 138 | ****/ |
| 139 | |
| 140 | struct rtmsg |
| 141 | { |
| 142 | unsigned char rtm_family; |
| 143 | unsigned char rtm_dst_len; |
| 144 | unsigned char rtm_src_len; |
| 145 | unsigned char rtm_tos; |
| 146 | |
| 147 | unsigned char rtm_table; /* Routing table id */ |
| 148 | unsigned char rtm_protocol; /* Routing protocol; see below */ |
| 149 | unsigned char rtm_scope; /* See below */ |
| 150 | unsigned char rtm_type; /* See below */ |
| 151 | |
| 152 | unsigned rtm_flags; |
| 153 | }; |
| 154 | |
| 155 | /* rtm_type */ |
| 156 | |
| 157 | enum |
| 158 | { |
| 159 | RTN_UNSPEC, |
| 160 | RTN_UNICAST, /* Gateway or direct route */ |
| 161 | RTN_LOCAL, /* Accept locally */ |
| 162 | RTN_BROADCAST, /* Accept locally as broadcast, |
| 163 | send as broadcast */ |
| 164 | RTN_ANYCAST, /* Accept locally as broadcast, |
| 165 | but send as unicast */ |
| 166 | RTN_MULTICAST, /* Multicast route */ |
| 167 | RTN_BLACKHOLE, /* Drop */ |
| 168 | RTN_UNREACHABLE, /* Destination is unreachable */ |
| 169 | RTN_PROHIBIT, /* Administratively prohibited */ |
| 170 | RTN_THROW, /* Not in this table */ |
| 171 | RTN_NAT, /* Translate this address */ |
| 172 | RTN_XRESOLVE, /* Use external resolver */ |
| 173 | __RTN_MAX |
| 174 | }; |
| 175 | |
| 176 | #define RTN_MAX (__RTN_MAX - 1) |
| 177 | |
| 178 | |
| 179 | /* rtm_protocol */ |
| 180 | |
| 181 | #define RTPROT_UNSPEC 0 |
| 182 | #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; |
| 183 | not used by current IPv4 */ |
| 184 | #define RTPROT_KERNEL 2 /* Route installed by kernel */ |
| 185 | #define RTPROT_BOOT 3 /* Route installed during boot */ |
| 186 | #define RTPROT_STATIC 4 /* Route installed by administrator */ |
| 187 | |
| 188 | /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; |
| 189 | they are just passed from user and back as is. |
| 190 | It will be used by hypothetical multiple routing daemons. |
| 191 | Note that protocol values should be standardized in order to |
| 192 | avoid conflicts. |
| 193 | */ |
| 194 | |
| 195 | #define RTPROT_GATED 8 /* Apparently, GateD */ |
| 196 | #define RTPROT_RA 9 /* RDISC/ND router advertisements */ |
| 197 | #define RTPROT_MRT 10 /* Merit MRT */ |
| 198 | #define RTPROT_ZEBRA 11 /* Zebra */ |
| 199 | #define RTPROT_BIRD 12 /* BIRD */ |
| 200 | #define RTPROT_DNROUTED 13 /* DECnet routing daemon */ |
| 201 | #define RTPROT_XORP 14 /* XORP */ |
| 202 | |
| 203 | /* rtm_scope |
| 204 | |
| 205 | Really it is not scope, but sort of distance to the destination. |
| 206 | NOWHERE are reserved for not existing destinations, HOST is our |
| 207 | local addresses, LINK are destinations, located on directly attached |
| 208 | link and UNIVERSE is everywhere in the Universe. |
| 209 | |
| 210 | Intermediate values are also possible f.e. interior routes |
| 211 | could be assigned a value between UNIVERSE and LINK. |
| 212 | */ |
| 213 | |
| 214 | enum rt_scope_t |
| 215 | { |
| 216 | RT_SCOPE_UNIVERSE=0, |
| 217 | /* User defined values */ |
| 218 | RT_SCOPE_SITE=200, |
| 219 | RT_SCOPE_LINK=253, |
| 220 | RT_SCOPE_HOST=254, |
| 221 | RT_SCOPE_NOWHERE=255 |
| 222 | }; |
| 223 | |
| 224 | /* rtm_flags */ |
| 225 | |
| 226 | #define RTM_F_NOTIFY 0x100 /* Notify user of route change */ |
| 227 | #define RTM_F_CLONED 0x200 /* This route is cloned */ |
| 228 | #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ |
| 229 | #define RTM_F_PREFIX 0x800 /* Prefix addresses */ |
| 230 | |
| 231 | /* Reserved table identifiers */ |
| 232 | |
| 233 | enum rt_class_t |
| 234 | { |
| 235 | RT_TABLE_UNSPEC=0, |
| 236 | /* User defined values */ |
| 237 | RT_TABLE_DEFAULT=253, |
| 238 | RT_TABLE_MAIN=254, |
| 239 | RT_TABLE_LOCAL=255, |
| 240 | __RT_TABLE_MAX |
| 241 | }; |
| 242 | #define RT_TABLE_MAX (__RT_TABLE_MAX - 1) |
| 243 | |
| 244 | |
| 245 | |
| 246 | /* Routing message attributes */ |
| 247 | |
| 248 | enum rtattr_type_t |
| 249 | { |
| 250 | RTA_UNSPEC, |
| 251 | RTA_DST, |
| 252 | RTA_SRC, |
| 253 | RTA_IIF, |
| 254 | RTA_OIF, |
| 255 | RTA_GATEWAY, |
| 256 | RTA_PRIORITY, |
| 257 | RTA_PREFSRC, |
| 258 | RTA_METRICS, |
| 259 | RTA_MULTIPATH, |
| 260 | RTA_PROTOINFO, |
| 261 | RTA_FLOW, |
| 262 | RTA_CACHEINFO, |
| 263 | RTA_SESSION, |
| 264 | RTA_MP_ALGO, |
| 265 | __RTA_MAX |
| 266 | }; |
| 267 | |
| 268 | #define RTA_MAX (__RTA_MAX - 1) |
| 269 | |
| 270 | #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg)))) |
| 271 | #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) |
| 272 | |
| 273 | /* RTM_MULTIPATH --- array of struct rtnexthop. |
| 274 | * |
| 275 | * "struct rtnexthop" describes all necessary nexthop information, |
| 276 | * i.e. parameters of path to a destination via this nexthop. |
| 277 | * |
| 278 | * At the moment it is impossible to set different prefsrc, mtu, window |
| 279 | * and rtt for different paths from multipath. |
| 280 | */ |
| 281 | |
| 282 | struct rtnexthop |
| 283 | { |
| 284 | unsigned short rtnh_len; |
| 285 | unsigned char rtnh_flags; |
| 286 | unsigned char rtnh_hops; |
| 287 | int rtnh_ifindex; |
| 288 | }; |
| 289 | |
| 290 | /* rtnh_flags */ |
| 291 | |
| 292 | #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ |
| 293 | #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ |
| 294 | #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ |
| 295 | |
| 296 | /* Macros to handle hexthops */ |
| 297 | |
| 298 | #define RTNH_ALIGNTO 4 |
| 299 | #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) ) |
| 300 | #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ |
| 301 | ((int)(rtnh)->rtnh_len) <= (len)) |
| 302 | #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len))) |
| 303 | #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len)) |
| 304 | #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len)) |
| 305 | #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) |
| 306 | |
| 307 | /* RTM_CACHEINFO */ |
| 308 | |
| 309 | struct rta_cacheinfo |
| 310 | { |
| 311 | __u32 rta_clntref; |
| 312 | __u32 rta_lastuse; |
| 313 | __s32 rta_expires; |
| 314 | __u32 rta_error; |
| 315 | __u32 rta_used; |
| 316 | |
| 317 | #define RTNETLINK_HAVE_PEERINFO 1 |
| 318 | __u32 rta_id; |
| 319 | __u32 rta_ts; |
| 320 | __u32 rta_tsage; |
| 321 | }; |
| 322 | |
| 323 | /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ |
| 324 | |
| 325 | enum |
| 326 | { |
| 327 | RTAX_UNSPEC, |
| 328 | #define RTAX_UNSPEC RTAX_UNSPEC |
| 329 | RTAX_LOCK, |
| 330 | #define RTAX_LOCK RTAX_LOCK |
| 331 | RTAX_MTU, |
| 332 | #define RTAX_MTU RTAX_MTU |
| 333 | RTAX_WINDOW, |
| 334 | #define RTAX_WINDOW RTAX_WINDOW |
| 335 | RTAX_RTT, |
| 336 | #define RTAX_RTT RTAX_RTT |
| 337 | RTAX_RTTVAR, |
| 338 | #define RTAX_RTTVAR RTAX_RTTVAR |
| 339 | RTAX_SSTHRESH, |
| 340 | #define RTAX_SSTHRESH RTAX_SSTHRESH |
| 341 | RTAX_CWND, |
| 342 | #define RTAX_CWND RTAX_CWND |
| 343 | RTAX_ADVMSS, |
| 344 | #define RTAX_ADVMSS RTAX_ADVMSS |
| 345 | RTAX_REORDERING, |
| 346 | #define RTAX_REORDERING RTAX_REORDERING |
| 347 | RTAX_HOPLIMIT, |
| 348 | #define RTAX_HOPLIMIT RTAX_HOPLIMIT |
| 349 | RTAX_INITCWND, |
| 350 | #define RTAX_INITCWND RTAX_INITCWND |
| 351 | RTAX_FEATURES, |
| 352 | #define RTAX_FEATURES RTAX_FEATURES |
| 353 | __RTAX_MAX |
| 354 | }; |
| 355 | |
| 356 | #define RTAX_MAX (__RTAX_MAX - 1) |
| 357 | |
| 358 | #define RTAX_FEATURE_ECN 0x00000001 |
| 359 | #define RTAX_FEATURE_SACK 0x00000002 |
| 360 | #define RTAX_FEATURE_TIMESTAMP 0x00000004 |
| 361 | #define RTAX_FEATURE_ALLFRAG 0x00000008 |
| 362 | |
| 363 | struct rta_session |
| 364 | { |
| 365 | __u8 proto; |
Patrick McHardy | 8a47077 | 2005-06-28 12:56:45 -0700 | [diff] [blame] | 366 | __u8 pad1; |
| 367 | __u16 pad2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | |
| 369 | union { |
| 370 | struct { |
| 371 | __u16 sport; |
| 372 | __u16 dport; |
| 373 | } ports; |
| 374 | |
| 375 | struct { |
| 376 | __u8 type; |
| 377 | __u8 code; |
| 378 | __u16 ident; |
| 379 | } icmpt; |
| 380 | |
| 381 | __u32 spi; |
| 382 | } u; |
| 383 | }; |
| 384 | |
| 385 | |
| 386 | /********************************************************* |
| 387 | * Interface address. |
| 388 | ****/ |
| 389 | |
| 390 | struct ifaddrmsg |
| 391 | { |
| 392 | unsigned char ifa_family; |
| 393 | unsigned char ifa_prefixlen; /* The prefix length */ |
| 394 | unsigned char ifa_flags; /* Flags */ |
| 395 | unsigned char ifa_scope; /* See above */ |
| 396 | int ifa_index; /* Link index */ |
| 397 | }; |
| 398 | |
| 399 | enum |
| 400 | { |
| 401 | IFA_UNSPEC, |
| 402 | IFA_ADDRESS, |
| 403 | IFA_LOCAL, |
| 404 | IFA_LABEL, |
| 405 | IFA_BROADCAST, |
| 406 | IFA_ANYCAST, |
| 407 | IFA_CACHEINFO, |
| 408 | IFA_MULTICAST, |
| 409 | __IFA_MAX |
| 410 | }; |
| 411 | |
| 412 | #define IFA_MAX (__IFA_MAX - 1) |
| 413 | |
| 414 | /* ifa_flags */ |
| 415 | |
| 416 | #define IFA_F_SECONDARY 0x01 |
| 417 | #define IFA_F_TEMPORARY IFA_F_SECONDARY |
| 418 | |
| 419 | #define IFA_F_DEPRECATED 0x20 |
| 420 | #define IFA_F_TENTATIVE 0x40 |
| 421 | #define IFA_F_PERMANENT 0x80 |
| 422 | |
| 423 | struct ifa_cacheinfo |
| 424 | { |
| 425 | __u32 ifa_prefered; |
| 426 | __u32 ifa_valid; |
| 427 | __u32 cstamp; /* created timestamp, hundredths of seconds */ |
| 428 | __u32 tstamp; /* updated timestamp, hundredths of seconds */ |
| 429 | }; |
| 430 | |
| 431 | |
| 432 | #define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) |
| 433 | #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) |
| 434 | |
| 435 | /* |
| 436 | Important comment: |
| 437 | IFA_ADDRESS is prefix address, rather than local interface address. |
| 438 | It makes no difference for normally configured broadcast interfaces, |
| 439 | but for point-to-point IFA_ADDRESS is DESTINATION address, |
| 440 | local address is supplied in IFA_LOCAL attribute. |
| 441 | */ |
| 442 | |
| 443 | /************************************************************** |
| 444 | * Neighbour discovery. |
| 445 | ****/ |
| 446 | |
| 447 | struct ndmsg |
| 448 | { |
| 449 | unsigned char ndm_family; |
| 450 | unsigned char ndm_pad1; |
| 451 | unsigned short ndm_pad2; |
| 452 | int ndm_ifindex; /* Link index */ |
| 453 | __u16 ndm_state; |
| 454 | __u8 ndm_flags; |
| 455 | __u8 ndm_type; |
| 456 | }; |
| 457 | |
| 458 | enum |
| 459 | { |
| 460 | NDA_UNSPEC, |
| 461 | NDA_DST, |
| 462 | NDA_LLADDR, |
| 463 | NDA_CACHEINFO, |
| 464 | NDA_PROBES, |
| 465 | __NDA_MAX |
| 466 | }; |
| 467 | |
| 468 | #define NDA_MAX (__NDA_MAX - 1) |
| 469 | |
| 470 | #define NDA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg)))) |
| 471 | #define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg)) |
| 472 | |
| 473 | /* |
| 474 | * Neighbor Cache Entry Flags |
| 475 | */ |
| 476 | |
| 477 | #define NTF_PROXY 0x08 /* == ATF_PUBL */ |
| 478 | #define NTF_ROUTER 0x80 |
| 479 | |
| 480 | /* |
| 481 | * Neighbor Cache Entry States. |
| 482 | */ |
| 483 | |
| 484 | #define NUD_INCOMPLETE 0x01 |
| 485 | #define NUD_REACHABLE 0x02 |
| 486 | #define NUD_STALE 0x04 |
| 487 | #define NUD_DELAY 0x08 |
| 488 | #define NUD_PROBE 0x10 |
| 489 | #define NUD_FAILED 0x20 |
| 490 | |
| 491 | /* Dummy states */ |
| 492 | #define NUD_NOARP 0x40 |
| 493 | #define NUD_PERMANENT 0x80 |
| 494 | #define NUD_NONE 0x00 |
| 495 | |
| 496 | |
| 497 | struct nda_cacheinfo |
| 498 | { |
| 499 | __u32 ndm_confirmed; |
| 500 | __u32 ndm_used; |
| 501 | __u32 ndm_updated; |
| 502 | __u32 ndm_refcnt; |
| 503 | }; |
| 504 | |
Thomas Graf | c7fb64d | 2005-06-18 22:50:55 -0700 | [diff] [blame] | 505 | |
| 506 | /***************************************************************** |
| 507 | * Neighbour tables specific messages. |
| 508 | * |
| 509 | * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the |
| 510 | * NLM_F_DUMP flag set. Every neighbour table configuration is |
| 511 | * spread over multiple messages to avoid running into message |
| 512 | * size limits on systems with many interfaces. The first message |
| 513 | * in the sequence transports all not device specific data such as |
| 514 | * statistics, configuration, and the default parameter set. |
| 515 | * This message is followed by 0..n messages carrying device |
| 516 | * specific parameter sets. |
| 517 | * Although the ordering should be sufficient, NDTA_NAME can be |
| 518 | * used to identify sequences. The initial message can be identified |
| 519 | * by checking for NDTA_CONFIG. The device specific messages do |
| 520 | * not contain this TLV but have NDTPA_IFINDEX set to the |
| 521 | * corresponding interface index. |
| 522 | * |
| 523 | * To change neighbour table attributes, send RTM_SETNEIGHTBL |
| 524 | * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], |
| 525 | * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked |
| 526 | * otherwise. Device specific parameter sets can be changed by |
| 527 | * setting NDTPA_IFINDEX to the interface index of the corresponding |
| 528 | * device. |
| 529 | ****/ |
| 530 | |
| 531 | struct ndt_stats |
| 532 | { |
| 533 | __u64 ndts_allocs; |
| 534 | __u64 ndts_destroys; |
| 535 | __u64 ndts_hash_grows; |
| 536 | __u64 ndts_res_failed; |
| 537 | __u64 ndts_lookups; |
| 538 | __u64 ndts_hits; |
| 539 | __u64 ndts_rcv_probes_mcast; |
| 540 | __u64 ndts_rcv_probes_ucast; |
| 541 | __u64 ndts_periodic_gc_runs; |
| 542 | __u64 ndts_forced_gc_runs; |
| 543 | }; |
| 544 | |
| 545 | enum { |
| 546 | NDTPA_UNSPEC, |
| 547 | NDTPA_IFINDEX, /* u32, unchangeable */ |
| 548 | NDTPA_REFCNT, /* u32, read-only */ |
| 549 | NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ |
| 550 | NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ |
| 551 | NDTPA_RETRANS_TIME, /* u64, msecs */ |
| 552 | NDTPA_GC_STALETIME, /* u64, msecs */ |
| 553 | NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ |
| 554 | NDTPA_QUEUE_LEN, /* u32 */ |
| 555 | NDTPA_APP_PROBES, /* u32 */ |
| 556 | NDTPA_UCAST_PROBES, /* u32 */ |
| 557 | NDTPA_MCAST_PROBES, /* u32 */ |
| 558 | NDTPA_ANYCAST_DELAY, /* u64, msecs */ |
| 559 | NDTPA_PROXY_DELAY, /* u64, msecs */ |
| 560 | NDTPA_PROXY_QLEN, /* u32 */ |
| 561 | NDTPA_LOCKTIME, /* u64, msecs */ |
| 562 | __NDTPA_MAX |
| 563 | }; |
| 564 | #define NDTPA_MAX (__NDTPA_MAX - 1) |
| 565 | |
| 566 | struct ndtmsg |
| 567 | { |
| 568 | __u8 ndtm_family; |
| 569 | __u8 ndtm_pad1; |
| 570 | __u16 ndtm_pad2; |
| 571 | }; |
| 572 | |
| 573 | struct ndt_config |
| 574 | { |
| 575 | __u16 ndtc_key_len; |
| 576 | __u16 ndtc_entry_size; |
| 577 | __u32 ndtc_entries; |
| 578 | __u32 ndtc_last_flush; /* delta to now in msecs */ |
| 579 | __u32 ndtc_last_rand; /* delta to now in msecs */ |
| 580 | __u32 ndtc_hash_rnd; |
| 581 | __u32 ndtc_hash_mask; |
| 582 | __u32 ndtc_hash_chain_gc; |
| 583 | __u32 ndtc_proxy_qlen; |
| 584 | }; |
| 585 | |
| 586 | enum { |
| 587 | NDTA_UNSPEC, |
| 588 | NDTA_NAME, /* char *, unchangeable */ |
| 589 | NDTA_THRESH1, /* u32 */ |
| 590 | NDTA_THRESH2, /* u32 */ |
| 591 | NDTA_THRESH3, /* u32 */ |
| 592 | NDTA_CONFIG, /* struct ndt_config, read-only */ |
| 593 | NDTA_PARMS, /* nested TLV NDTPA_* */ |
| 594 | NDTA_STATS, /* struct ndt_stats, read-only */ |
| 595 | NDTA_GC_INTERVAL, /* u64, msecs */ |
| 596 | __NDTA_MAX |
| 597 | }; |
| 598 | #define NDTA_MAX (__NDTA_MAX - 1) |
| 599 | |
| 600 | #define NDTA_RTA(r) ((struct rtattr*)(((char*)(r)) + \ |
| 601 | NLMSG_ALIGN(sizeof(struct ndtmsg)))) |
| 602 | #define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg)) |
| 603 | |
| 604 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | /**** |
| 606 | * General form of address family dependent message. |
| 607 | ****/ |
| 608 | |
| 609 | struct rtgenmsg |
| 610 | { |
| 611 | unsigned char rtgen_family; |
| 612 | }; |
| 613 | |
| 614 | /***************************************************************** |
| 615 | * Link layer specific messages. |
| 616 | ****/ |
| 617 | |
| 618 | /* struct ifinfomsg |
| 619 | * passes link level specific information, not dependent |
| 620 | * on network protocol. |
| 621 | */ |
| 622 | |
| 623 | struct ifinfomsg |
| 624 | { |
| 625 | unsigned char ifi_family; |
| 626 | unsigned char __ifi_pad; |
| 627 | unsigned short ifi_type; /* ARPHRD_* */ |
| 628 | int ifi_index; /* Link index */ |
| 629 | unsigned ifi_flags; /* IFF_* flags */ |
| 630 | unsigned ifi_change; /* IFF_* change mask */ |
| 631 | }; |
| 632 | |
| 633 | /******************************************************************** |
| 634 | * prefix information |
| 635 | ****/ |
| 636 | |
| 637 | struct prefixmsg |
| 638 | { |
| 639 | unsigned char prefix_family; |
Patrick McHardy | 8a47077 | 2005-06-28 12:56:45 -0700 | [diff] [blame] | 640 | unsigned char prefix_pad1; |
| 641 | unsigned short prefix_pad2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | int prefix_ifindex; |
| 643 | unsigned char prefix_type; |
| 644 | unsigned char prefix_len; |
| 645 | unsigned char prefix_flags; |
Patrick McHardy | 8a47077 | 2005-06-28 12:56:45 -0700 | [diff] [blame] | 646 | unsigned char prefix_pad3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | }; |
| 648 | |
| 649 | enum |
| 650 | { |
| 651 | PREFIX_UNSPEC, |
| 652 | PREFIX_ADDRESS, |
| 653 | PREFIX_CACHEINFO, |
| 654 | __PREFIX_MAX |
| 655 | }; |
| 656 | |
| 657 | #define PREFIX_MAX (__PREFIX_MAX - 1) |
| 658 | |
| 659 | struct prefix_cacheinfo |
| 660 | { |
| 661 | __u32 preferred_time; |
| 662 | __u32 valid_time; |
| 663 | }; |
| 664 | |
| 665 | /* The struct should be in sync with struct net_device_stats */ |
| 666 | struct rtnl_link_stats |
| 667 | { |
| 668 | __u32 rx_packets; /* total packets received */ |
| 669 | __u32 tx_packets; /* total packets transmitted */ |
| 670 | __u32 rx_bytes; /* total bytes received */ |
| 671 | __u32 tx_bytes; /* total bytes transmitted */ |
| 672 | __u32 rx_errors; /* bad packets received */ |
| 673 | __u32 tx_errors; /* packet transmit problems */ |
| 674 | __u32 rx_dropped; /* no space in linux buffers */ |
| 675 | __u32 tx_dropped; /* no space available in linux */ |
| 676 | __u32 multicast; /* multicast packets received */ |
| 677 | __u32 collisions; |
| 678 | |
| 679 | /* detailed rx_errors: */ |
| 680 | __u32 rx_length_errors; |
| 681 | __u32 rx_over_errors; /* receiver ring buff overflow */ |
| 682 | __u32 rx_crc_errors; /* recved pkt with crc error */ |
| 683 | __u32 rx_frame_errors; /* recv'd frame alignment error */ |
| 684 | __u32 rx_fifo_errors; /* recv'r fifo overrun */ |
| 685 | __u32 rx_missed_errors; /* receiver missed packet */ |
| 686 | |
| 687 | /* detailed tx_errors */ |
| 688 | __u32 tx_aborted_errors; |
| 689 | __u32 tx_carrier_errors; |
| 690 | __u32 tx_fifo_errors; |
| 691 | __u32 tx_heartbeat_errors; |
| 692 | __u32 tx_window_errors; |
| 693 | |
| 694 | /* for cslip etc */ |
| 695 | __u32 rx_compressed; |
| 696 | __u32 tx_compressed; |
| 697 | }; |
| 698 | |
| 699 | /* The struct should be in sync with struct ifmap */ |
| 700 | struct rtnl_link_ifmap |
| 701 | { |
| 702 | __u64 mem_start; |
| 703 | __u64 mem_end; |
| 704 | __u64 base_addr; |
| 705 | __u16 irq; |
| 706 | __u8 dma; |
| 707 | __u8 port; |
| 708 | }; |
| 709 | |
| 710 | enum |
| 711 | { |
| 712 | IFLA_UNSPEC, |
| 713 | IFLA_ADDRESS, |
| 714 | IFLA_BROADCAST, |
| 715 | IFLA_IFNAME, |
| 716 | IFLA_MTU, |
| 717 | IFLA_LINK, |
| 718 | IFLA_QDISC, |
| 719 | IFLA_STATS, |
| 720 | IFLA_COST, |
| 721 | #define IFLA_COST IFLA_COST |
| 722 | IFLA_PRIORITY, |
| 723 | #define IFLA_PRIORITY IFLA_PRIORITY |
| 724 | IFLA_MASTER, |
| 725 | #define IFLA_MASTER IFLA_MASTER |
| 726 | IFLA_WIRELESS, /* Wireless Extension event - see wireless.h */ |
| 727 | #define IFLA_WIRELESS IFLA_WIRELESS |
| 728 | IFLA_PROTINFO, /* Protocol specific information for a link */ |
| 729 | #define IFLA_PROTINFO IFLA_PROTINFO |
| 730 | IFLA_TXQLEN, |
| 731 | #define IFLA_TXQLEN IFLA_TXQLEN |
| 732 | IFLA_MAP, |
| 733 | #define IFLA_MAP IFLA_MAP |
| 734 | IFLA_WEIGHT, |
| 735 | #define IFLA_WEIGHT IFLA_WEIGHT |
| 736 | __IFLA_MAX |
| 737 | }; |
| 738 | |
| 739 | |
| 740 | #define IFLA_MAX (__IFLA_MAX - 1) |
| 741 | |
| 742 | #define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg)))) |
| 743 | #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg)) |
| 744 | |
| 745 | /* ifi_flags. |
| 746 | |
| 747 | IFF_* flags. |
| 748 | |
| 749 | The only change is: |
| 750 | IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are |
| 751 | more not changeable by user. They describe link media |
| 752 | characteristics and set by device driver. |
| 753 | |
| 754 | Comments: |
| 755 | - Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid |
| 756 | - If neither of these three flags are set; |
| 757 | the interface is NBMA. |
| 758 | |
| 759 | - IFF_MULTICAST does not mean anything special: |
| 760 | multicasts can be used on all not-NBMA links. |
| 761 | IFF_MULTICAST means that this media uses special encapsulation |
| 762 | for multicast frames. Apparently, all IFF_POINTOPOINT and |
| 763 | IFF_BROADCAST devices are able to use multicasts too. |
| 764 | */ |
| 765 | |
| 766 | /* IFLA_LINK. |
| 767 | For usual devices it is equal ifi_index. |
| 768 | If it is a "virtual interface" (f.e. tunnel), ifi_link |
| 769 | can point to real physical interface (f.e. for bandwidth calculations), |
| 770 | or maybe 0, what means, that real media is unknown (usual |
| 771 | for IPIP tunnels, when route to endpoint is allowed to change) |
| 772 | */ |
| 773 | |
| 774 | /* Subtype attributes for IFLA_PROTINFO */ |
| 775 | enum |
| 776 | { |
| 777 | IFLA_INET6_UNSPEC, |
| 778 | IFLA_INET6_FLAGS, /* link flags */ |
| 779 | IFLA_INET6_CONF, /* sysctl parameters */ |
| 780 | IFLA_INET6_STATS, /* statistics */ |
| 781 | IFLA_INET6_MCAST, /* MC things. What of them? */ |
| 782 | IFLA_INET6_CACHEINFO, /* time values and max reasm size */ |
| 783 | __IFLA_INET6_MAX |
| 784 | }; |
| 785 | |
| 786 | #define IFLA_INET6_MAX (__IFLA_INET6_MAX - 1) |
| 787 | |
| 788 | struct ifla_cacheinfo |
| 789 | { |
| 790 | __u32 max_reasm_len; |
| 791 | __u32 tstamp; /* ipv6InterfaceTable updated timestamp */ |
| 792 | __u32 reachable_time; |
| 793 | __u32 retrans_time; |
| 794 | }; |
| 795 | |
| 796 | /***************************************************************** |
| 797 | * Traffic control messages. |
| 798 | ****/ |
| 799 | |
| 800 | struct tcmsg |
| 801 | { |
| 802 | unsigned char tcm_family; |
| 803 | unsigned char tcm__pad1; |
| 804 | unsigned short tcm__pad2; |
| 805 | int tcm_ifindex; |
| 806 | __u32 tcm_handle; |
| 807 | __u32 tcm_parent; |
| 808 | __u32 tcm_info; |
| 809 | }; |
| 810 | |
| 811 | enum |
| 812 | { |
| 813 | TCA_UNSPEC, |
| 814 | TCA_KIND, |
| 815 | TCA_OPTIONS, |
| 816 | TCA_STATS, |
| 817 | TCA_XSTATS, |
| 818 | TCA_RATE, |
| 819 | TCA_FCNT, |
| 820 | TCA_STATS2, |
| 821 | __TCA_MAX |
| 822 | }; |
| 823 | |
| 824 | #define TCA_MAX (__TCA_MAX - 1) |
| 825 | |
| 826 | #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg)))) |
| 827 | #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg)) |
| 828 | |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 829 | #ifndef __KERNEL__ |
| 830 | /* RTnetlink multicast groups - backwards compatibility for userspace */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | #define RTMGRP_LINK 1 |
| 832 | #define RTMGRP_NOTIFY 2 |
| 833 | #define RTMGRP_NEIGH 4 |
| 834 | #define RTMGRP_TC 8 |
| 835 | |
| 836 | #define RTMGRP_IPV4_IFADDR 0x10 |
| 837 | #define RTMGRP_IPV4_MROUTE 0x20 |
| 838 | #define RTMGRP_IPV4_ROUTE 0x40 |
| 839 | |
| 840 | #define RTMGRP_IPV6_IFADDR 0x100 |
| 841 | #define RTMGRP_IPV6_MROUTE 0x200 |
| 842 | #define RTMGRP_IPV6_ROUTE 0x400 |
| 843 | #define RTMGRP_IPV6_IFINFO 0x800 |
| 844 | |
| 845 | #define RTMGRP_DECnet_IFADDR 0x1000 |
| 846 | #define RTMGRP_DECnet_ROUTE 0x4000 |
| 847 | |
| 848 | #define RTMGRP_IPV6_PREFIX 0x20000 |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 849 | #endif |
| 850 | |
| 851 | /* RTnetlink multicast groups */ |
| 852 | enum rtnetlink_groups { |
| 853 | RTNLGRP_NONE, |
| 854 | #define RTNLGRP_NONE RTNLGRP_NONE |
| 855 | RTNLGRP_LINK, |
| 856 | #define RTNLGRP_LINK RTNLGRP_LINK |
| 857 | RTNLGRP_NOTIFY, |
| 858 | #define RTNLGRP_NOTIFY RTNLGRP_NOTIFY |
| 859 | RTNLGRP_NEIGH, |
| 860 | #define RTNLGRP_NEIGH RTNLGRP_NEIGH |
| 861 | RTNLGRP_TC, |
| 862 | #define RTNLGRP_TC RTNLGRP_TC |
| 863 | RTNLGRP_IPV4_IFADDR, |
| 864 | #define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR |
| 865 | RTNLGRP_IPV4_MROUTE, |
| 866 | #define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE |
| 867 | RTNLGRP_IPV4_ROUTE, |
| 868 | #define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE |
Kristian Slavov | 6b80ebe | 2005-12-19 13:54:44 -0800 | [diff] [blame^] | 869 | RTNLGRP_NOP1, |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 870 | RTNLGRP_IPV6_IFADDR, |
| 871 | #define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR |
| 872 | RTNLGRP_IPV6_MROUTE, |
| 873 | #define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE |
| 874 | RTNLGRP_IPV6_ROUTE, |
| 875 | #define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE |
| 876 | RTNLGRP_IPV6_IFINFO, |
| 877 | #define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO |
| 878 | RTNLGRP_DECnet_IFADDR, |
| 879 | #define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR |
Kristian Slavov | 6b80ebe | 2005-12-19 13:54:44 -0800 | [diff] [blame^] | 880 | RTNLGRP_NOP2, |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 881 | RTNLGRP_DECnet_ROUTE, |
| 882 | #define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE |
Kristian Slavov | 6b80ebe | 2005-12-19 13:54:44 -0800 | [diff] [blame^] | 883 | RTNLGRP_NOP3, |
| 884 | RTNLGRP_NOP4, |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 885 | RTNLGRP_IPV6_PREFIX, |
| 886 | #define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX |
| 887 | __RTNLGRP_MAX |
| 888 | }; |
| 889 | #define RTNLGRP_MAX (__RTNLGRP_MAX - 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | |
| 891 | /* TC action piece */ |
| 892 | struct tcamsg |
| 893 | { |
| 894 | unsigned char tca_family; |
| 895 | unsigned char tca__pad1; |
| 896 | unsigned short tca__pad2; |
| 897 | }; |
| 898 | #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg)))) |
| 899 | #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg)) |
| 900 | #define TCA_ACT_TAB 1 /* attr type must be >=1 */ |
| 901 | #define TCAA_MAX 1 |
| 902 | |
| 903 | /* End of information exported to user level */ |
| 904 | |
| 905 | #ifdef __KERNEL__ |
| 906 | |
| 907 | #include <linux/config.h> |
| 908 | |
| 909 | extern size_t rtattr_strlcpy(char *dest, const struct rtattr *rta, size_t size); |
| 910 | static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str) |
| 911 | { |
| 912 | int len = strlen(str) + 1; |
| 913 | return len > rta->rta_len || memcmp(RTA_DATA(rta), str, len); |
| 914 | } |
| 915 | |
| 916 | extern int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len); |
| 917 | |
| 918 | #define rtattr_parse_nested(tb, max, rta) \ |
| 919 | rtattr_parse((tb), (max), RTA_DATA((rta)), RTA_PAYLOAD((rta))) |
| 920 | |
| 921 | extern struct sock *rtnl; |
| 922 | |
| 923 | struct rtnetlink_link |
| 924 | { |
| 925 | int (*doit)(struct sk_buff *, struct nlmsghdr*, void *attr); |
| 926 | int (*dumpit)(struct sk_buff *, struct netlink_callback *cb); |
| 927 | }; |
| 928 | |
| 929 | extern struct rtnetlink_link * rtnetlink_links[NPROTO]; |
| 930 | extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo); |
| 931 | extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); |
| 932 | |
| 933 | extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data); |
| 934 | |
| 935 | #define RTA_PUT(skb, attrtype, attrlen, data) \ |
| 936 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ |
| 937 | goto rtattr_failure; \ |
| 938 | __rta_fill(skb, attrtype, attrlen, data); }) |
| 939 | |
Thomas Graf | d675c98 | 2005-06-23 21:00:58 -0700 | [diff] [blame] | 940 | #define RTA_APPEND(skb, attrlen, data) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | ({ if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \ |
| 942 | goto rtattr_failure; \ |
Thomas Graf | d675c98 | 2005-06-23 21:00:58 -0700 | [diff] [blame] | 943 | memcpy(skb_put(skb, attrlen), data, attrlen); }) |
| 944 | |
| 945 | #define RTA_PUT_NOHDR(skb, attrlen, data) \ |
Patrick McHardy | b3563c4 | 2005-06-28 12:54:43 -0700 | [diff] [blame] | 946 | ({ RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \ |
| 947 | memset(skb->tail - (RTA_ALIGN(attrlen) - attrlen), 0, \ |
| 948 | RTA_ALIGN(attrlen) - attrlen); }) |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 949 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 950 | #define RTA_PUT_U8(skb, attrtype, value) \ |
| 951 | ({ u8 _tmp = (value); \ |
| 952 | RTA_PUT(skb, attrtype, sizeof(u8), &_tmp); }) |
| 953 | |
| 954 | #define RTA_PUT_U16(skb, attrtype, value) \ |
| 955 | ({ u16 _tmp = (value); \ |
| 956 | RTA_PUT(skb, attrtype, sizeof(u16), &_tmp); }) |
| 957 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 958 | #define RTA_PUT_U32(skb, attrtype, value) \ |
| 959 | ({ u32 _tmp = (value); \ |
| 960 | RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); }) |
| 961 | |
| 962 | #define RTA_PUT_U64(skb, attrtype, value) \ |
| 963 | ({ u64 _tmp = (value); \ |
| 964 | RTA_PUT(skb, attrtype, sizeof(u64), &_tmp); }) |
| 965 | |
| 966 | #define RTA_PUT_SECS(skb, attrtype, value) \ |
| 967 | RTA_PUT_U64(skb, attrtype, (value) / HZ) |
| 968 | |
| 969 | #define RTA_PUT_MSECS(skb, attrtype, value) \ |
| 970 | RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value)) |
| 971 | |
| 972 | #define RTA_PUT_STRING(skb, attrtype, value) \ |
| 973 | RTA_PUT(skb, attrtype, strlen(value) + 1, value) |
| 974 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 975 | #define RTA_PUT_FLAG(skb, attrtype) \ |
| 976 | RTA_PUT(skb, attrtype, 0, NULL); |
| 977 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 978 | #define RTA_NEST(skb, type) \ |
| 979 | ({ struct rtattr *__start = (struct rtattr *) (skb)->tail; \ |
| 980 | RTA_PUT(skb, type, 0, NULL); \ |
| 981 | __start; }) |
| 982 | |
| 983 | #define RTA_NEST_END(skb, start) \ |
| 984 | ({ (start)->rta_len = ((skb)->tail - (unsigned char *) (start)); \ |
| 985 | (skb)->len; }) |
| 986 | |
| 987 | #define RTA_NEST_CANCEL(skb, start) \ |
Thomas Graf | c52a3f8 | 2005-06-18 22:51:26 -0700 | [diff] [blame] | 988 | ({ if (start) \ |
| 989 | skb_trim(skb, (unsigned char *) (start) - (skb)->data); \ |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 990 | -1; }) |
| 991 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 992 | #define RTA_GET_U8(rta) \ |
| 993 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u8)) \ |
| 994 | goto rtattr_failure; \ |
| 995 | *(u8 *) RTA_DATA(rta); }) |
| 996 | |
| 997 | #define RTA_GET_U16(rta) \ |
| 998 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u16)) \ |
| 999 | goto rtattr_failure; \ |
| 1000 | *(u16 *) RTA_DATA(rta); }) |
| 1001 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 1002 | #define RTA_GET_U32(rta) \ |
| 1003 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \ |
| 1004 | goto rtattr_failure; \ |
| 1005 | *(u32 *) RTA_DATA(rta); }) |
| 1006 | |
| 1007 | #define RTA_GET_U64(rta) \ |
| 1008 | ({ u64 _tmp; \ |
| 1009 | if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \ |
| 1010 | goto rtattr_failure; \ |
| 1011 | memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \ |
| 1012 | _tmp; }) |
| 1013 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 1014 | #define RTA_GET_FLAG(rta) (!!(rta)) |
| 1015 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 1016 | #define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ) |
| 1017 | #define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | |
| 1019 | static inline struct rtattr * |
| 1020 | __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) |
| 1021 | { |
| 1022 | struct rtattr *rta; |
| 1023 | int size = RTA_LENGTH(attrlen); |
| 1024 | |
| 1025 | rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size)); |
| 1026 | rta->rta_type = attrtype; |
| 1027 | rta->rta_len = size; |
Patrick McHardy | b3563c4 | 2005-06-28 12:54:43 -0700 | [diff] [blame] | 1028 | memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | return rta; |
| 1030 | } |
| 1031 | |
| 1032 | #define __RTA_PUT(skb, attrtype, attrlen) \ |
| 1033 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ |
| 1034 | goto rtattr_failure; \ |
| 1035 | __rta_reserve(skb, attrtype, attrlen); }) |
| 1036 | |
| 1037 | extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change); |
| 1038 | |
| 1039 | extern struct semaphore rtnl_sem; |
| 1040 | |
| 1041 | #define rtnl_shlock() down(&rtnl_sem) |
| 1042 | #define rtnl_shlock_nowait() down_trylock(&rtnl_sem) |
| 1043 | |
| 1044 | #define rtnl_shunlock() do { up(&rtnl_sem); \ |
| 1045 | if (rtnl && rtnl->sk_receive_queue.qlen) \ |
| 1046 | rtnl->sk_data_ready(rtnl, 0); \ |
| 1047 | } while(0) |
| 1048 | |
| 1049 | extern void rtnl_lock(void); |
| 1050 | extern int rtnl_lock_interruptible(void); |
| 1051 | extern void rtnl_unlock(void); |
| 1052 | extern void rtnetlink_init(void); |
| 1053 | |
| 1054 | #define ASSERT_RTNL() do { \ |
| 1055 | if (unlikely(down_trylock(&rtnl_sem) == 0)) { \ |
| 1056 | up(&rtnl_sem); \ |
| 1057 | printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \ |
| 1058 | __FILE__, __LINE__); \ |
| 1059 | dump_stack(); \ |
| 1060 | } \ |
| 1061 | } while(0) |
| 1062 | |
| 1063 | #define BUG_TRAP(x) do { \ |
| 1064 | if (unlikely(!(x))) { \ |
| 1065 | printk(KERN_ERR "KERNEL: assertion (%s) failed at %s (%d)\n", \ |
| 1066 | #x, __FILE__ , __LINE__); \ |
| 1067 | } \ |
| 1068 | } while(0) |
| 1069 | |
| 1070 | #endif /* __KERNEL__ */ |
| 1071 | |
| 1072 | |
| 1073 | #endif /* __LINUX_RTNETLINK_H */ |