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> |
YOSHIFUJI Hideaki | cbde166 | 2006-09-27 22:40:19 -0700 | [diff] [blame] | 5 | #include <linux/if_link.h> |
Thomas Graf | e07bca8 | 2006-12-07 23:49:45 -0800 | [diff] [blame] | 6 | #include <linux/if_addr.h> |
| 7 | #include <linux/neighbour.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | |
| 9 | /**** |
| 10 | * Routing/neighbour discovery messages. |
| 11 | ****/ |
| 12 | |
| 13 | /* Types of messages */ |
| 14 | |
| 15 | enum { |
| 16 | RTM_BASE = 16, |
| 17 | #define RTM_BASE RTM_BASE |
| 18 | |
| 19 | RTM_NEWLINK = 16, |
| 20 | #define RTM_NEWLINK RTM_NEWLINK |
| 21 | RTM_DELLINK, |
| 22 | #define RTM_DELLINK RTM_DELLINK |
| 23 | RTM_GETLINK, |
| 24 | #define RTM_GETLINK RTM_GETLINK |
| 25 | RTM_SETLINK, |
| 26 | #define RTM_SETLINK RTM_SETLINK |
| 27 | |
| 28 | RTM_NEWADDR = 20, |
| 29 | #define RTM_NEWADDR RTM_NEWADDR |
| 30 | RTM_DELADDR, |
| 31 | #define RTM_DELADDR RTM_DELADDR |
| 32 | RTM_GETADDR, |
| 33 | #define RTM_GETADDR RTM_GETADDR |
| 34 | |
| 35 | RTM_NEWROUTE = 24, |
| 36 | #define RTM_NEWROUTE RTM_NEWROUTE |
| 37 | RTM_DELROUTE, |
| 38 | #define RTM_DELROUTE RTM_DELROUTE |
| 39 | RTM_GETROUTE, |
| 40 | #define RTM_GETROUTE RTM_GETROUTE |
| 41 | |
| 42 | RTM_NEWNEIGH = 28, |
| 43 | #define RTM_NEWNEIGH RTM_NEWNEIGH |
| 44 | RTM_DELNEIGH, |
| 45 | #define RTM_DELNEIGH RTM_DELNEIGH |
| 46 | RTM_GETNEIGH, |
| 47 | #define RTM_GETNEIGH RTM_GETNEIGH |
| 48 | |
| 49 | RTM_NEWRULE = 32, |
| 50 | #define RTM_NEWRULE RTM_NEWRULE |
| 51 | RTM_DELRULE, |
| 52 | #define RTM_DELRULE RTM_DELRULE |
| 53 | RTM_GETRULE, |
| 54 | #define RTM_GETRULE RTM_GETRULE |
| 55 | |
| 56 | RTM_NEWQDISC = 36, |
| 57 | #define RTM_NEWQDISC RTM_NEWQDISC |
| 58 | RTM_DELQDISC, |
| 59 | #define RTM_DELQDISC RTM_DELQDISC |
| 60 | RTM_GETQDISC, |
| 61 | #define RTM_GETQDISC RTM_GETQDISC |
| 62 | |
| 63 | RTM_NEWTCLASS = 40, |
| 64 | #define RTM_NEWTCLASS RTM_NEWTCLASS |
| 65 | RTM_DELTCLASS, |
| 66 | #define RTM_DELTCLASS RTM_DELTCLASS |
| 67 | RTM_GETTCLASS, |
| 68 | #define RTM_GETTCLASS RTM_GETTCLASS |
| 69 | |
| 70 | RTM_NEWTFILTER = 44, |
| 71 | #define RTM_NEWTFILTER RTM_NEWTFILTER |
| 72 | RTM_DELTFILTER, |
| 73 | #define RTM_DELTFILTER RTM_DELTFILTER |
| 74 | RTM_GETTFILTER, |
| 75 | #define RTM_GETTFILTER RTM_GETTFILTER |
| 76 | |
| 77 | RTM_NEWACTION = 48, |
| 78 | #define RTM_NEWACTION RTM_NEWACTION |
| 79 | RTM_DELACTION, |
| 80 | #define RTM_DELACTION RTM_DELACTION |
| 81 | RTM_GETACTION, |
| 82 | #define RTM_GETACTION RTM_GETACTION |
| 83 | |
| 84 | RTM_NEWPREFIX = 52, |
| 85 | #define RTM_NEWPREFIX RTM_NEWPREFIX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
| 87 | RTM_GETMULTICAST = 58, |
| 88 | #define RTM_GETMULTICAST RTM_GETMULTICAST |
| 89 | |
| 90 | RTM_GETANYCAST = 62, |
| 91 | #define RTM_GETANYCAST RTM_GETANYCAST |
| 92 | |
Thomas Graf | c7fb64d | 2005-06-18 22:50:55 -0700 | [diff] [blame] | 93 | RTM_NEWNEIGHTBL = 64, |
| 94 | #define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL |
| 95 | RTM_GETNEIGHTBL = 66, |
| 96 | #define RTM_GETNEIGHTBL RTM_GETNEIGHTBL |
| 97 | RTM_SETNEIGHTBL, |
| 98 | #define RTM_SETNEIGHTBL RTM_SETNEIGHTBL |
| 99 | |
Thomas Graf | d775fc0 | 2005-05-03 14:27:35 -0700 | [diff] [blame] | 100 | __RTM_MAX, |
| 101 | #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | }; |
| 103 | |
Thomas Graf | db46edc | 2005-05-03 14:29:39 -0700 | [diff] [blame] | 104 | #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) |
| 105 | #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2) |
Thomas Graf | f90a0a7 | 2005-05-03 14:29:00 -0700 | [diff] [blame] | 106 | #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) |
| 107 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | /* |
| 109 | Generic structure for encapsulation of optional route information. |
| 110 | It is reminiscent of sockaddr, but with sa_family replaced |
| 111 | with attribute type. |
| 112 | */ |
| 113 | |
| 114 | struct rtattr |
| 115 | { |
| 116 | unsigned short rta_len; |
| 117 | unsigned short rta_type; |
| 118 | }; |
| 119 | |
| 120 | /* Macros to handle rtattributes */ |
| 121 | |
| 122 | #define RTA_ALIGNTO 4 |
| 123 | #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) ) |
| 124 | #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ |
| 125 | (rta)->rta_len >= sizeof(struct rtattr) && \ |
| 126 | (rta)->rta_len <= (len)) |
| 127 | #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ |
| 128 | (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len))) |
| 129 | #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len)) |
| 130 | #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) |
| 131 | #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0))) |
| 132 | #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) |
| 133 | |
| 134 | |
| 135 | |
| 136 | |
| 137 | /****************************************************************************** |
| 138 | * Definitions used in routing table administration. |
| 139 | ****/ |
| 140 | |
| 141 | struct rtmsg |
| 142 | { |
| 143 | unsigned char rtm_family; |
| 144 | unsigned char rtm_dst_len; |
| 145 | unsigned char rtm_src_len; |
| 146 | unsigned char rtm_tos; |
| 147 | |
| 148 | unsigned char rtm_table; /* Routing table id */ |
| 149 | unsigned char rtm_protocol; /* Routing protocol; see below */ |
| 150 | unsigned char rtm_scope; /* See below */ |
| 151 | unsigned char rtm_type; /* See below */ |
| 152 | |
| 153 | unsigned rtm_flags; |
| 154 | }; |
| 155 | |
| 156 | /* rtm_type */ |
| 157 | |
| 158 | enum |
| 159 | { |
| 160 | RTN_UNSPEC, |
| 161 | RTN_UNICAST, /* Gateway or direct route */ |
| 162 | RTN_LOCAL, /* Accept locally */ |
| 163 | RTN_BROADCAST, /* Accept locally as broadcast, |
| 164 | send as broadcast */ |
| 165 | RTN_ANYCAST, /* Accept locally as broadcast, |
| 166 | but send as unicast */ |
| 167 | RTN_MULTICAST, /* Multicast route */ |
| 168 | RTN_BLACKHOLE, /* Drop */ |
| 169 | RTN_UNREACHABLE, /* Destination is unreachable */ |
| 170 | RTN_PROHIBIT, /* Administratively prohibited */ |
| 171 | RTN_THROW, /* Not in this table */ |
| 172 | RTN_NAT, /* Translate this address */ |
| 173 | RTN_XRESOLVE, /* Use external resolver */ |
| 174 | __RTN_MAX |
| 175 | }; |
| 176 | |
| 177 | #define RTN_MAX (__RTN_MAX - 1) |
| 178 | |
| 179 | |
| 180 | /* rtm_protocol */ |
| 181 | |
| 182 | #define RTPROT_UNSPEC 0 |
| 183 | #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; |
| 184 | not used by current IPv4 */ |
| 185 | #define RTPROT_KERNEL 2 /* Route installed by kernel */ |
| 186 | #define RTPROT_BOOT 3 /* Route installed during boot */ |
| 187 | #define RTPROT_STATIC 4 /* Route installed by administrator */ |
| 188 | |
| 189 | /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; |
| 190 | they are just passed from user and back as is. |
| 191 | It will be used by hypothetical multiple routing daemons. |
| 192 | Note that protocol values should be standardized in order to |
| 193 | avoid conflicts. |
| 194 | */ |
| 195 | |
| 196 | #define RTPROT_GATED 8 /* Apparently, GateD */ |
| 197 | #define RTPROT_RA 9 /* RDISC/ND router advertisements */ |
| 198 | #define RTPROT_MRT 10 /* Merit MRT */ |
| 199 | #define RTPROT_ZEBRA 11 /* Zebra */ |
| 200 | #define RTPROT_BIRD 12 /* BIRD */ |
| 201 | #define RTPROT_DNROUTED 13 /* DECnet routing daemon */ |
| 202 | #define RTPROT_XORP 14 /* XORP */ |
Alpt | 99cae7f | 2006-03-20 22:26:17 -0800 | [diff] [blame] | 203 | #define RTPROT_NTK 15 /* Netsukuku */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | |
| 205 | /* rtm_scope |
| 206 | |
| 207 | Really it is not scope, but sort of distance to the destination. |
| 208 | NOWHERE are reserved for not existing destinations, HOST is our |
| 209 | local addresses, LINK are destinations, located on directly attached |
| 210 | link and UNIVERSE is everywhere in the Universe. |
| 211 | |
| 212 | Intermediate values are also possible f.e. interior routes |
| 213 | could be assigned a value between UNIVERSE and LINK. |
| 214 | */ |
| 215 | |
| 216 | enum rt_scope_t |
| 217 | { |
| 218 | RT_SCOPE_UNIVERSE=0, |
| 219 | /* User defined values */ |
| 220 | RT_SCOPE_SITE=200, |
| 221 | RT_SCOPE_LINK=253, |
| 222 | RT_SCOPE_HOST=254, |
| 223 | RT_SCOPE_NOWHERE=255 |
| 224 | }; |
| 225 | |
| 226 | /* rtm_flags */ |
| 227 | |
| 228 | #define RTM_F_NOTIFY 0x100 /* Notify user of route change */ |
| 229 | #define RTM_F_CLONED 0x200 /* This route is cloned */ |
| 230 | #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ |
| 231 | #define RTM_F_PREFIX 0x800 /* Prefix addresses */ |
| 232 | |
| 233 | /* Reserved table identifiers */ |
| 234 | |
| 235 | enum rt_class_t |
| 236 | { |
| 237 | RT_TABLE_UNSPEC=0, |
| 238 | /* User defined values */ |
| 239 | RT_TABLE_DEFAULT=253, |
| 240 | RT_TABLE_MAIN=254, |
| 241 | RT_TABLE_LOCAL=255, |
Patrick McHardy | b801f54 | 2006-08-10 23:12:34 -0700 | [diff] [blame] | 242 | RT_TABLE_MAX=0xFFFFFFFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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, |
David S. Miller | e06e7c6 | 2007-06-10 17:22:39 -0700 | [diff] [blame] | 264 | RTA_MP_ALGO, /* no longer used */ |
Patrick McHardy | 9e762a4 | 2006-08-10 23:09:48 -0700 | [diff] [blame] | 265 | RTA_TABLE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | __RTA_MAX |
| 267 | }; |
| 268 | |
| 269 | #define RTA_MAX (__RTA_MAX - 1) |
| 270 | |
| 271 | #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg)))) |
| 272 | #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) |
| 273 | |
| 274 | /* RTM_MULTIPATH --- array of struct rtnexthop. |
| 275 | * |
| 276 | * "struct rtnexthop" describes all necessary nexthop information, |
| 277 | * i.e. parameters of path to a destination via this nexthop. |
| 278 | * |
| 279 | * At the moment it is impossible to set different prefsrc, mtu, window |
| 280 | * and rtt for different paths from multipath. |
| 281 | */ |
| 282 | |
| 283 | struct rtnexthop |
| 284 | { |
| 285 | unsigned short rtnh_len; |
| 286 | unsigned char rtnh_flags; |
| 287 | unsigned char rtnh_hops; |
| 288 | int rtnh_ifindex; |
| 289 | }; |
| 290 | |
| 291 | /* rtnh_flags */ |
| 292 | |
| 293 | #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ |
| 294 | #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ |
| 295 | #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ |
| 296 | |
| 297 | /* Macros to handle hexthops */ |
| 298 | |
| 299 | #define RTNH_ALIGNTO 4 |
| 300 | #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) ) |
| 301 | #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ |
| 302 | ((int)(rtnh)->rtnh_len) <= (len)) |
| 303 | #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len))) |
| 304 | #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len)) |
| 305 | #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len)) |
| 306 | #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) |
| 307 | |
| 308 | /* RTM_CACHEINFO */ |
| 309 | |
| 310 | struct rta_cacheinfo |
| 311 | { |
| 312 | __u32 rta_clntref; |
| 313 | __u32 rta_lastuse; |
| 314 | __s32 rta_expires; |
| 315 | __u32 rta_error; |
| 316 | __u32 rta_used; |
| 317 | |
| 318 | #define RTNETLINK_HAVE_PEERINFO 1 |
| 319 | __u32 rta_id; |
| 320 | __u32 rta_ts; |
| 321 | __u32 rta_tsage; |
| 322 | }; |
| 323 | |
| 324 | /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ |
| 325 | |
| 326 | enum |
| 327 | { |
| 328 | RTAX_UNSPEC, |
| 329 | #define RTAX_UNSPEC RTAX_UNSPEC |
| 330 | RTAX_LOCK, |
| 331 | #define RTAX_LOCK RTAX_LOCK |
| 332 | RTAX_MTU, |
| 333 | #define RTAX_MTU RTAX_MTU |
| 334 | RTAX_WINDOW, |
| 335 | #define RTAX_WINDOW RTAX_WINDOW |
| 336 | RTAX_RTT, |
| 337 | #define RTAX_RTT RTAX_RTT |
| 338 | RTAX_RTTVAR, |
| 339 | #define RTAX_RTTVAR RTAX_RTTVAR |
| 340 | RTAX_SSTHRESH, |
| 341 | #define RTAX_SSTHRESH RTAX_SSTHRESH |
| 342 | RTAX_CWND, |
| 343 | #define RTAX_CWND RTAX_CWND |
| 344 | RTAX_ADVMSS, |
| 345 | #define RTAX_ADVMSS RTAX_ADVMSS |
| 346 | RTAX_REORDERING, |
| 347 | #define RTAX_REORDERING RTAX_REORDERING |
| 348 | RTAX_HOPLIMIT, |
| 349 | #define RTAX_HOPLIMIT RTAX_HOPLIMIT |
| 350 | RTAX_INITCWND, |
| 351 | #define RTAX_INITCWND RTAX_INITCWND |
| 352 | RTAX_FEATURES, |
| 353 | #define RTAX_FEATURES RTAX_FEATURES |
David S. Miller | 05bb1fa | 2007-08-30 22:10:28 -0700 | [diff] [blame] | 354 | RTAX_RTO_MIN, |
| 355 | #define RTAX_RTO_MIN RTAX_RTO_MIN |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | __RTAX_MAX |
| 357 | }; |
| 358 | |
| 359 | #define RTAX_MAX (__RTAX_MAX - 1) |
| 360 | |
| 361 | #define RTAX_FEATURE_ECN 0x00000001 |
| 362 | #define RTAX_FEATURE_SACK 0x00000002 |
| 363 | #define RTAX_FEATURE_TIMESTAMP 0x00000004 |
| 364 | #define RTAX_FEATURE_ALLFRAG 0x00000008 |
| 365 | |
| 366 | struct rta_session |
| 367 | { |
| 368 | __u8 proto; |
Patrick McHardy | 8a47077 | 2005-06-28 12:56:45 -0700 | [diff] [blame] | 369 | __u8 pad1; |
| 370 | __u16 pad2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | |
| 372 | union { |
| 373 | struct { |
| 374 | __u16 sport; |
| 375 | __u16 dport; |
| 376 | } ports; |
| 377 | |
| 378 | struct { |
| 379 | __u8 type; |
| 380 | __u8 code; |
| 381 | __u16 ident; |
| 382 | } icmpt; |
| 383 | |
| 384 | __u32 spi; |
| 385 | } u; |
| 386 | }; |
| 387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | /**** |
| 389 | * General form of address family dependent message. |
| 390 | ****/ |
| 391 | |
| 392 | struct rtgenmsg |
| 393 | { |
| 394 | unsigned char rtgen_family; |
| 395 | }; |
| 396 | |
| 397 | /***************************************************************** |
| 398 | * Link layer specific messages. |
| 399 | ****/ |
| 400 | |
| 401 | /* struct ifinfomsg |
| 402 | * passes link level specific information, not dependent |
| 403 | * on network protocol. |
| 404 | */ |
| 405 | |
| 406 | struct ifinfomsg |
| 407 | { |
| 408 | unsigned char ifi_family; |
| 409 | unsigned char __ifi_pad; |
| 410 | unsigned short ifi_type; /* ARPHRD_* */ |
| 411 | int ifi_index; /* Link index */ |
| 412 | unsigned ifi_flags; /* IFF_* flags */ |
| 413 | unsigned ifi_change; /* IFF_* change mask */ |
| 414 | }; |
| 415 | |
| 416 | /******************************************************************** |
| 417 | * prefix information |
| 418 | ****/ |
| 419 | |
| 420 | struct prefixmsg |
| 421 | { |
| 422 | unsigned char prefix_family; |
Patrick McHardy | 8a47077 | 2005-06-28 12:56:45 -0700 | [diff] [blame] | 423 | unsigned char prefix_pad1; |
| 424 | unsigned short prefix_pad2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | int prefix_ifindex; |
| 426 | unsigned char prefix_type; |
| 427 | unsigned char prefix_len; |
| 428 | unsigned char prefix_flags; |
Patrick McHardy | 8a47077 | 2005-06-28 12:56:45 -0700 | [diff] [blame] | 429 | unsigned char prefix_pad3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | }; |
| 431 | |
| 432 | enum |
| 433 | { |
| 434 | PREFIX_UNSPEC, |
| 435 | PREFIX_ADDRESS, |
| 436 | PREFIX_CACHEINFO, |
| 437 | __PREFIX_MAX |
| 438 | }; |
| 439 | |
| 440 | #define PREFIX_MAX (__PREFIX_MAX - 1) |
| 441 | |
| 442 | struct prefix_cacheinfo |
| 443 | { |
| 444 | __u32 preferred_time; |
| 445 | __u32 valid_time; |
| 446 | }; |
| 447 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | |
| 449 | /***************************************************************** |
| 450 | * Traffic control messages. |
| 451 | ****/ |
| 452 | |
| 453 | struct tcmsg |
| 454 | { |
| 455 | unsigned char tcm_family; |
| 456 | unsigned char tcm__pad1; |
| 457 | unsigned short tcm__pad2; |
| 458 | int tcm_ifindex; |
| 459 | __u32 tcm_handle; |
| 460 | __u32 tcm_parent; |
| 461 | __u32 tcm_info; |
| 462 | }; |
| 463 | |
| 464 | enum |
| 465 | { |
| 466 | TCA_UNSPEC, |
| 467 | TCA_KIND, |
| 468 | TCA_OPTIONS, |
| 469 | TCA_STATS, |
| 470 | TCA_XSTATS, |
| 471 | TCA_RATE, |
| 472 | TCA_FCNT, |
| 473 | TCA_STATS2, |
| 474 | __TCA_MAX |
| 475 | }; |
| 476 | |
| 477 | #define TCA_MAX (__TCA_MAX - 1) |
| 478 | |
| 479 | #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg)))) |
| 480 | #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg)) |
| 481 | |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 482 | #ifndef __KERNEL__ |
| 483 | /* RTnetlink multicast groups - backwards compatibility for userspace */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | #define RTMGRP_LINK 1 |
| 485 | #define RTMGRP_NOTIFY 2 |
| 486 | #define RTMGRP_NEIGH 4 |
| 487 | #define RTMGRP_TC 8 |
| 488 | |
| 489 | #define RTMGRP_IPV4_IFADDR 0x10 |
| 490 | #define RTMGRP_IPV4_MROUTE 0x20 |
| 491 | #define RTMGRP_IPV4_ROUTE 0x40 |
Patrick McHardy | a5cdc03 | 2006-03-23 01:16:06 -0800 | [diff] [blame] | 492 | #define RTMGRP_IPV4_RULE 0x80 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | |
| 494 | #define RTMGRP_IPV6_IFADDR 0x100 |
| 495 | #define RTMGRP_IPV6_MROUTE 0x200 |
| 496 | #define RTMGRP_IPV6_ROUTE 0x400 |
| 497 | #define RTMGRP_IPV6_IFINFO 0x800 |
| 498 | |
| 499 | #define RTMGRP_DECnet_IFADDR 0x1000 |
| 500 | #define RTMGRP_DECnet_ROUTE 0x4000 |
| 501 | |
| 502 | #define RTMGRP_IPV6_PREFIX 0x20000 |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 503 | #endif |
| 504 | |
| 505 | /* RTnetlink multicast groups */ |
| 506 | enum rtnetlink_groups { |
| 507 | RTNLGRP_NONE, |
| 508 | #define RTNLGRP_NONE RTNLGRP_NONE |
| 509 | RTNLGRP_LINK, |
| 510 | #define RTNLGRP_LINK RTNLGRP_LINK |
| 511 | RTNLGRP_NOTIFY, |
| 512 | #define RTNLGRP_NOTIFY RTNLGRP_NOTIFY |
| 513 | RTNLGRP_NEIGH, |
| 514 | #define RTNLGRP_NEIGH RTNLGRP_NEIGH |
| 515 | RTNLGRP_TC, |
| 516 | #define RTNLGRP_TC RTNLGRP_TC |
| 517 | RTNLGRP_IPV4_IFADDR, |
| 518 | #define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR |
| 519 | RTNLGRP_IPV4_MROUTE, |
| 520 | #define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE |
| 521 | RTNLGRP_IPV4_ROUTE, |
| 522 | #define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE |
Patrick McHardy | a5cdc03 | 2006-03-23 01:16:06 -0800 | [diff] [blame] | 523 | RTNLGRP_IPV4_RULE, |
| 524 | #define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 525 | RTNLGRP_IPV6_IFADDR, |
| 526 | #define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR |
| 527 | RTNLGRP_IPV6_MROUTE, |
| 528 | #define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE |
| 529 | RTNLGRP_IPV6_ROUTE, |
| 530 | #define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE |
| 531 | RTNLGRP_IPV6_IFINFO, |
| 532 | #define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO |
| 533 | RTNLGRP_DECnet_IFADDR, |
| 534 | #define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR |
Kristian Slavov | 6b80ebe | 2005-12-19 13:54:44 -0800 | [diff] [blame] | 535 | RTNLGRP_NOP2, |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 536 | RTNLGRP_DECnet_ROUTE, |
| 537 | #define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE |
Steven Whitehouse | a8731cb | 2006-08-09 15:56:46 -0700 | [diff] [blame] | 538 | RTNLGRP_DECnet_RULE, |
| 539 | #define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE |
Kristian Slavov | 6b80ebe | 2005-12-19 13:54:44 -0800 | [diff] [blame] | 540 | RTNLGRP_NOP4, |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 541 | RTNLGRP_IPV6_PREFIX, |
| 542 | #define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX |
Thomas Graf | 101367c | 2006-08-04 03:39:02 -0700 | [diff] [blame] | 543 | RTNLGRP_IPV6_RULE, |
| 544 | #define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE |
Patrick McHardy | ac6d439 | 2005-08-14 19:29:52 -0700 | [diff] [blame] | 545 | __RTNLGRP_MAX |
| 546 | }; |
| 547 | #define RTNLGRP_MAX (__RTNLGRP_MAX - 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | |
| 549 | /* TC action piece */ |
| 550 | struct tcamsg |
| 551 | { |
| 552 | unsigned char tca_family; |
| 553 | unsigned char tca__pad1; |
| 554 | unsigned short tca__pad2; |
| 555 | }; |
| 556 | #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg)))) |
| 557 | #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg)) |
| 558 | #define TCA_ACT_TAB 1 /* attr type must be >=1 */ |
| 559 | #define TCAA_MAX 1 |
| 560 | |
| 561 | /* End of information exported to user level */ |
| 562 | |
| 563 | #ifdef __KERNEL__ |
| 564 | |
Stephen Hemminger | 6756ae4 | 2006-03-20 22:23:58 -0800 | [diff] [blame] | 565 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | |
| 567 | extern size_t rtattr_strlcpy(char *dest, const struct rtattr *rta, size_t size); |
| 568 | static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str) |
| 569 | { |
| 570 | int len = strlen(str) + 1; |
| 571 | return len > rta->rta_len || memcmp(RTA_DATA(rta), str, len); |
| 572 | } |
| 573 | |
| 574 | extern int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len); |
Patrick McHardy | 2371baa | 2007-06-26 03:23:44 -0700 | [diff] [blame] | 575 | extern int __rtattr_parse_nested_compat(struct rtattr *tb[], int maxattr, |
| 576 | struct rtattr *rta, int len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | |
| 578 | #define rtattr_parse_nested(tb, max, rta) \ |
| 579 | rtattr_parse((tb), (max), RTA_DATA((rta)), RTA_PAYLOAD((rta))) |
| 580 | |
Patrick McHardy | 2371baa | 2007-06-26 03:23:44 -0700 | [diff] [blame] | 581 | #define rtattr_parse_nested_compat(tb, max, rta, data, len) \ |
| 582 | ({ data = RTA_PAYLOAD(rta) >= len ? RTA_DATA(rta) : NULL; \ |
| 583 | __rtattr_parse_nested_compat(tb, max, rta, len); }) |
| 584 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo); |
Thomas Graf | 2942e90 | 2006-08-15 00:30:25 -0700 | [diff] [blame] | 586 | extern int rtnl_unicast(struct sk_buff *skb, u32 pid); |
Thomas Graf | 97676b6 | 2006-08-15 00:31:41 -0700 | [diff] [blame] | 587 | extern int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group, |
| 588 | struct nlmsghdr *nlh, gfp_t flags); |
| 589 | extern void rtnl_set_sk_err(u32 group, int error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); |
Thomas Graf | e3703b3 | 2006-11-27 09:27:07 -0800 | [diff] [blame] | 591 | extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, |
| 592 | u32 id, u32 ts, u32 tsage, long expires, |
| 593 | u32 error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | |
| 595 | extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data); |
| 596 | |
| 597 | #define RTA_PUT(skb, attrtype, attrlen, data) \ |
| 598 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ |
| 599 | goto rtattr_failure; \ |
| 600 | __rta_fill(skb, attrtype, attrlen, data); }) |
| 601 | |
Thomas Graf | d675c98 | 2005-06-23 21:00:58 -0700 | [diff] [blame] | 602 | #define RTA_APPEND(skb, attrlen, data) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | ({ if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \ |
| 604 | goto rtattr_failure; \ |
Thomas Graf | d675c98 | 2005-06-23 21:00:58 -0700 | [diff] [blame] | 605 | memcpy(skb_put(skb, attrlen), data, attrlen); }) |
| 606 | |
| 607 | #define RTA_PUT_NOHDR(skb, attrlen, data) \ |
Patrick McHardy | b3563c4 | 2005-06-28 12:54:43 -0700 | [diff] [blame] | 608 | ({ RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \ |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 609 | memset(skb_tail_pointer(skb) - (RTA_ALIGN(attrlen) - attrlen), 0, \ |
Patrick McHardy | b3563c4 | 2005-06-28 12:54:43 -0700 | [diff] [blame] | 610 | RTA_ALIGN(attrlen) - attrlen); }) |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 611 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 612 | #define RTA_PUT_U8(skb, attrtype, value) \ |
| 613 | ({ u8 _tmp = (value); \ |
| 614 | RTA_PUT(skb, attrtype, sizeof(u8), &_tmp); }) |
| 615 | |
| 616 | #define RTA_PUT_U16(skb, attrtype, value) \ |
| 617 | ({ u16 _tmp = (value); \ |
| 618 | RTA_PUT(skb, attrtype, sizeof(u16), &_tmp); }) |
| 619 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 620 | #define RTA_PUT_U32(skb, attrtype, value) \ |
| 621 | ({ u32 _tmp = (value); \ |
| 622 | RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); }) |
| 623 | |
| 624 | #define RTA_PUT_U64(skb, attrtype, value) \ |
| 625 | ({ u64 _tmp = (value); \ |
| 626 | RTA_PUT(skb, attrtype, sizeof(u64), &_tmp); }) |
| 627 | |
| 628 | #define RTA_PUT_SECS(skb, attrtype, value) \ |
| 629 | RTA_PUT_U64(skb, attrtype, (value) / HZ) |
| 630 | |
| 631 | #define RTA_PUT_MSECS(skb, attrtype, value) \ |
| 632 | RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value)) |
| 633 | |
| 634 | #define RTA_PUT_STRING(skb, attrtype, value) \ |
| 635 | RTA_PUT(skb, attrtype, strlen(value) + 1, value) |
| 636 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 637 | #define RTA_PUT_FLAG(skb, attrtype) \ |
| 638 | RTA_PUT(skb, attrtype, 0, NULL); |
| 639 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 640 | #define RTA_NEST(skb, type) \ |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 641 | ({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \ |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 642 | RTA_PUT(skb, type, 0, NULL); \ |
| 643 | __start; }) |
| 644 | |
| 645 | #define RTA_NEST_END(skb, start) \ |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 646 | ({ (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \ |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 647 | (skb)->len; }) |
| 648 | |
Patrick McHardy | afdc323 | 2007-06-25 14:30:16 -0700 | [diff] [blame] | 649 | #define RTA_NEST_COMPAT(skb, type, attrlen, data) \ |
| 650 | ({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \ |
| 651 | RTA_PUT(skb, type, attrlen, data); \ |
| 652 | RTA_NEST(skb, type); \ |
| 653 | __start; }) |
| 654 | |
| 655 | #define RTA_NEST_COMPAT_END(skb, start) \ |
| 656 | ({ struct rtattr *__nest = (void *)(start) + NLMSG_ALIGN((start)->rta_len); \ |
| 657 | (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \ |
| 658 | RTA_NEST_END(skb, __nest); \ |
| 659 | (skb)->len; }) |
| 660 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 661 | #define RTA_NEST_CANCEL(skb, start) \ |
Thomas Graf | c52a3f8 | 2005-06-18 22:51:26 -0700 | [diff] [blame] | 662 | ({ if (start) \ |
| 663 | skb_trim(skb, (unsigned char *) (start) - (skb)->data); \ |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 664 | -1; }) |
| 665 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 666 | #define RTA_GET_U8(rta) \ |
| 667 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u8)) \ |
| 668 | goto rtattr_failure; \ |
| 669 | *(u8 *) RTA_DATA(rta); }) |
| 670 | |
| 671 | #define RTA_GET_U16(rta) \ |
| 672 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u16)) \ |
| 673 | goto rtattr_failure; \ |
| 674 | *(u16 *) RTA_DATA(rta); }) |
| 675 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 676 | #define RTA_GET_U32(rta) \ |
| 677 | ({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \ |
| 678 | goto rtattr_failure; \ |
| 679 | *(u32 *) RTA_DATA(rta); }) |
| 680 | |
| 681 | #define RTA_GET_U64(rta) \ |
| 682 | ({ u64 _tmp; \ |
| 683 | if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \ |
| 684 | goto rtattr_failure; \ |
| 685 | memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \ |
| 686 | _tmp; }) |
| 687 | |
Thomas Graf | 8f48bcd | 2005-06-18 22:52:36 -0700 | [diff] [blame] | 688 | #define RTA_GET_FLAG(rta) (!!(rta)) |
| 689 | |
Thomas Graf | 0076824 | 2005-06-18 22:50:38 -0700 | [diff] [blame] | 690 | #define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ) |
| 691 | #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] | 692 | |
| 693 | static inline struct rtattr * |
| 694 | __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) |
| 695 | { |
| 696 | struct rtattr *rta; |
| 697 | int size = RTA_LENGTH(attrlen); |
| 698 | |
| 699 | rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size)); |
| 700 | rta->rta_type = attrtype; |
| 701 | rta->rta_len = size; |
Patrick McHardy | b3563c4 | 2005-06-28 12:54:43 -0700 | [diff] [blame] | 702 | memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | return rta; |
| 704 | } |
| 705 | |
| 706 | #define __RTA_PUT(skb, attrtype, attrlen) \ |
| 707 | ({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ |
| 708 | goto rtattr_failure; \ |
| 709 | __rta_reserve(skb, attrtype, attrlen); }) |
| 710 | |
| 711 | extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change); |
| 712 | |
Stephen Hemminger | 6756ae4 | 2006-03-20 22:23:58 -0800 | [diff] [blame] | 713 | /* RTNL is used as a global lock for all changes to network configuration */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | extern void rtnl_lock(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | extern void rtnl_unlock(void); |
Stephen Hemminger | 6756ae4 | 2006-03-20 22:23:58 -0800 | [diff] [blame] | 716 | extern int rtnl_trylock(void); |
| 717 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | extern void rtnetlink_init(void); |
Stephen Hemminger | 6756ae4 | 2006-03-20 22:23:58 -0800 | [diff] [blame] | 719 | extern void __rtnl_unlock(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | |
| 721 | #define ASSERT_RTNL() do { \ |
Stephen Hemminger | 6756ae4 | 2006-03-20 22:23:58 -0800 | [diff] [blame] | 722 | if (unlikely(rtnl_trylock())) { \ |
| 723 | rtnl_unlock(); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \ |
| 725 | __FILE__, __LINE__); \ |
| 726 | dump_stack(); \ |
| 727 | } \ |
| 728 | } while(0) |
| 729 | |
| 730 | #define BUG_TRAP(x) do { \ |
| 731 | if (unlikely(!(x))) { \ |
| 732 | printk(KERN_ERR "KERNEL: assertion (%s) failed at %s (%d)\n", \ |
| 733 | #x, __FILE__ , __LINE__); \ |
| 734 | } \ |
| 735 | } while(0) |
| 736 | |
Patrick McHardy | 9e762a4 | 2006-08-10 23:09:48 -0700 | [diff] [blame] | 737 | static inline u32 rtm_get_table(struct rtattr **rta, u8 table) |
| 738 | { |
| 739 | return RTA_GET_U32(rta[RTA_TABLE-1]); |
| 740 | rtattr_failure: |
| 741 | return table; |
| 742 | } |
| 743 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | #endif /* __KERNEL__ */ |
| 745 | |
| 746 | |
| 747 | #endif /* __LINUX_RTNETLINK_H */ |