1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License as published by 4 * the Free Software Foundation; either version 2 of the License, or 5 * (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, see <http://www.gnu.org/licenses/>. 14 */ 15 16 #include "qemu/osdep.h" 17 18 #include <sys/signalfd.h> 19 #include <linux/unistd.h> 20 #include <linux/audit.h> 21 #ifdef CONFIG_INOTIFY 22 #include <sys/inotify.h> 23 #endif 24 #include <linux/netlink.h> 25 #ifdef CONFIG_RTNETLINK 26 #include <linux/rtnetlink.h> 27 #include <linux/if_bridge.h> 28 #endif 29 #include "qemu.h" 30 #include "fd-trans.h" 31 32 enum { 33 QEMU_IFLA_BR_UNSPEC, 34 QEMU_IFLA_BR_FORWARD_DELAY, 35 QEMU_IFLA_BR_HELLO_TIME, 36 QEMU_IFLA_BR_MAX_AGE, 37 QEMU_IFLA_BR_AGEING_TIME, 38 QEMU_IFLA_BR_STP_STATE, 39 QEMU_IFLA_BR_PRIORITY, 40 QEMU_IFLA_BR_VLAN_FILTERING, 41 QEMU_IFLA_BR_VLAN_PROTOCOL, 42 QEMU_IFLA_BR_GROUP_FWD_MASK, 43 QEMU_IFLA_BR_ROOT_ID, 44 QEMU_IFLA_BR_BRIDGE_ID, 45 QEMU_IFLA_BR_ROOT_PORT, 46 QEMU_IFLA_BR_ROOT_PATH_COST, 47 QEMU_IFLA_BR_TOPOLOGY_CHANGE, 48 QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED, 49 QEMU_IFLA_BR_HELLO_TIMER, 50 QEMU_IFLA_BR_TCN_TIMER, 51 QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER, 52 QEMU_IFLA_BR_GC_TIMER, 53 QEMU_IFLA_BR_GROUP_ADDR, 54 QEMU_IFLA_BR_FDB_FLUSH, 55 QEMU_IFLA_BR_MCAST_ROUTER, 56 QEMU_IFLA_BR_MCAST_SNOOPING, 57 QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR, 58 QEMU_IFLA_BR_MCAST_QUERIER, 59 QEMU_IFLA_BR_MCAST_HASH_ELASTICITY, 60 QEMU_IFLA_BR_MCAST_HASH_MAX, 61 QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT, 62 QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT, 63 QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL, 64 QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL, 65 QEMU_IFLA_BR_MCAST_QUERIER_INTVL, 66 QEMU_IFLA_BR_MCAST_QUERY_INTVL, 67 QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, 68 QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL, 69 QEMU_IFLA_BR_NF_CALL_IPTABLES, 70 QEMU_IFLA_BR_NF_CALL_IP6TABLES, 71 QEMU_IFLA_BR_NF_CALL_ARPTABLES, 72 QEMU_IFLA_BR_VLAN_DEFAULT_PVID, 73 QEMU_IFLA_BR_PAD, 74 QEMU_IFLA_BR_VLAN_STATS_ENABLED, 75 QEMU_IFLA_BR_MCAST_STATS_ENABLED, 76 QEMU_IFLA_BR_MCAST_IGMP_VERSION, 77 QEMU_IFLA_BR_MCAST_MLD_VERSION, 78 QEMU_IFLA_BR_VLAN_STATS_PER_PORT, 79 QEMU_IFLA_BR_MULTI_BOOLOPT, 80 QEMU___IFLA_BR_MAX, 81 }; 82 83 enum { 84 QEMU_IFLA_UNSPEC, 85 QEMU_IFLA_ADDRESS, 86 QEMU_IFLA_BROADCAST, 87 QEMU_IFLA_IFNAME, 88 QEMU_IFLA_MTU, 89 QEMU_IFLA_LINK, 90 QEMU_IFLA_QDISC, 91 QEMU_IFLA_STATS, 92 QEMU_IFLA_COST, 93 QEMU_IFLA_PRIORITY, 94 QEMU_IFLA_MASTER, 95 QEMU_IFLA_WIRELESS, 96 QEMU_IFLA_PROTINFO, 97 QEMU_IFLA_TXQLEN, 98 QEMU_IFLA_MAP, 99 QEMU_IFLA_WEIGHT, 100 QEMU_IFLA_OPERSTATE, 101 QEMU_IFLA_LINKMODE, 102 QEMU_IFLA_LINKINFO, 103 QEMU_IFLA_NET_NS_PID, 104 QEMU_IFLA_IFALIAS, 105 QEMU_IFLA_NUM_VF, 106 QEMU_IFLA_VFINFO_LIST, 107 QEMU_IFLA_STATS64, 108 QEMU_IFLA_VF_PORTS, 109 QEMU_IFLA_PORT_SELF, 110 QEMU_IFLA_AF_SPEC, 111 QEMU_IFLA_GROUP, 112 QEMU_IFLA_NET_NS_FD, 113 QEMU_IFLA_EXT_MASK, 114 QEMU_IFLA_PROMISCUITY, 115 QEMU_IFLA_NUM_TX_QUEUES, 116 QEMU_IFLA_NUM_RX_QUEUES, 117 QEMU_IFLA_CARRIER, 118 QEMU_IFLA_PHYS_PORT_ID, 119 QEMU_IFLA_CARRIER_CHANGES, 120 QEMU_IFLA_PHYS_SWITCH_ID, 121 QEMU_IFLA_LINK_NETNSID, 122 QEMU_IFLA_PHYS_PORT_NAME, 123 QEMU_IFLA_PROTO_DOWN, 124 QEMU_IFLA_GSO_MAX_SEGS, 125 QEMU_IFLA_GSO_MAX_SIZE, 126 QEMU_IFLA_PAD, 127 QEMU_IFLA_XDP, 128 QEMU_IFLA_EVENT, 129 QEMU_IFLA_NEW_NETNSID, 130 QEMU_IFLA_IF_NETNSID, 131 QEMU_IFLA_CARRIER_UP_COUNT, 132 QEMU_IFLA_CARRIER_DOWN_COUNT, 133 QEMU_IFLA_NEW_IFINDEX, 134 QEMU_IFLA_MIN_MTU, 135 QEMU_IFLA_MAX_MTU, 136 QEMU___IFLA_MAX 137 }; 138 139 enum { 140 QEMU_IFLA_BRPORT_UNSPEC, 141 QEMU_IFLA_BRPORT_STATE, 142 QEMU_IFLA_BRPORT_PRIORITY, 143 QEMU_IFLA_BRPORT_COST, 144 QEMU_IFLA_BRPORT_MODE, 145 QEMU_IFLA_BRPORT_GUARD, 146 QEMU_IFLA_BRPORT_PROTECT, 147 QEMU_IFLA_BRPORT_FAST_LEAVE, 148 QEMU_IFLA_BRPORT_LEARNING, 149 QEMU_IFLA_BRPORT_UNICAST_FLOOD, 150 QEMU_IFLA_BRPORT_PROXYARP, 151 QEMU_IFLA_BRPORT_LEARNING_SYNC, 152 QEMU_IFLA_BRPORT_PROXYARP_WIFI, 153 QEMU_IFLA_BRPORT_ROOT_ID, 154 QEMU_IFLA_BRPORT_BRIDGE_ID, 155 QEMU_IFLA_BRPORT_DESIGNATED_PORT, 156 QEMU_IFLA_BRPORT_DESIGNATED_COST, 157 QEMU_IFLA_BRPORT_ID, 158 QEMU_IFLA_BRPORT_NO, 159 QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK, 160 QEMU_IFLA_BRPORT_CONFIG_PENDING, 161 QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER, 162 QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER, 163 QEMU_IFLA_BRPORT_HOLD_TIMER, 164 QEMU_IFLA_BRPORT_FLUSH, 165 QEMU_IFLA_BRPORT_MULTICAST_ROUTER, 166 QEMU_IFLA_BRPORT_PAD, 167 QEMU_IFLA_BRPORT_MCAST_FLOOD, 168 QEMU_IFLA_BRPORT_MCAST_TO_UCAST, 169 QEMU_IFLA_BRPORT_VLAN_TUNNEL, 170 QEMU_IFLA_BRPORT_BCAST_FLOOD, 171 QEMU_IFLA_BRPORT_GROUP_FWD_MASK, 172 QEMU_IFLA_BRPORT_NEIGH_SUPPRESS, 173 QEMU_IFLA_BRPORT_ISOLATED, 174 QEMU_IFLA_BRPORT_BACKUP_PORT, 175 QEMU___IFLA_BRPORT_MAX 176 }; 177 178 enum { 179 QEMU_IFLA_TUN_UNSPEC, 180 QEMU_IFLA_TUN_OWNER, 181 QEMU_IFLA_TUN_GROUP, 182 QEMU_IFLA_TUN_TYPE, 183 QEMU_IFLA_TUN_PI, 184 QEMU_IFLA_TUN_VNET_HDR, 185 QEMU_IFLA_TUN_PERSIST, 186 QEMU_IFLA_TUN_MULTI_QUEUE, 187 QEMU_IFLA_TUN_NUM_QUEUES, 188 QEMU_IFLA_TUN_NUM_DISABLED_QUEUES, 189 QEMU___IFLA_TUN_MAX, 190 }; 191 192 enum { 193 QEMU_IFLA_INFO_UNSPEC, 194 QEMU_IFLA_INFO_KIND, 195 QEMU_IFLA_INFO_DATA, 196 QEMU_IFLA_INFO_XSTATS, 197 QEMU_IFLA_INFO_SLAVE_KIND, 198 QEMU_IFLA_INFO_SLAVE_DATA, 199 QEMU___IFLA_INFO_MAX, 200 }; 201 202 enum { 203 QEMU_IFLA_INET_UNSPEC, 204 QEMU_IFLA_INET_CONF, 205 QEMU___IFLA_INET_MAX, 206 }; 207 208 enum { 209 QEMU_IFLA_INET6_UNSPEC, 210 QEMU_IFLA_INET6_FLAGS, 211 QEMU_IFLA_INET6_CONF, 212 QEMU_IFLA_INET6_STATS, 213 QEMU_IFLA_INET6_MCAST, 214 QEMU_IFLA_INET6_CACHEINFO, 215 QEMU_IFLA_INET6_ICMP6STATS, 216 QEMU_IFLA_INET6_TOKEN, 217 QEMU_IFLA_INET6_ADDR_GEN_MODE, 218 QEMU___IFLA_INET6_MAX 219 }; 220 221 enum { 222 QEMU_IFLA_XDP_UNSPEC, 223 QEMU_IFLA_XDP_FD, 224 QEMU_IFLA_XDP_ATTACHED, 225 QEMU_IFLA_XDP_FLAGS, 226 QEMU_IFLA_XDP_PROG_ID, 227 QEMU___IFLA_XDP_MAX, 228 }; 229 230 enum { 231 QEMU_RTA_UNSPEC, 232 QEMU_RTA_DST, 233 QEMU_RTA_SRC, 234 QEMU_RTA_IIF, 235 QEMU_RTA_OIF, 236 QEMU_RTA_GATEWAY, 237 QEMU_RTA_PRIORITY, 238 QEMU_RTA_PREFSRC, 239 QEMU_RTA_METRICS, 240 QEMU_RTA_MULTIPATH, 241 QEMU_RTA_PROTOINFO, /* no longer used */ 242 QEMU_RTA_FLOW, 243 QEMU_RTA_CACHEINFO, 244 QEMU_RTA_SESSION, /* no longer used */ 245 QEMU_RTA_MP_ALGO, /* no longer used */ 246 QEMU_RTA_TABLE, 247 QEMU_RTA_MARK, 248 QEMU_RTA_MFC_STATS, 249 QEMU_RTA_VIA, 250 QEMU_RTA_NEWDST, 251 QEMU_RTA_PREF, 252 QEMU_RTA_ENCAP_TYPE, 253 QEMU_RTA_ENCAP, 254 QEMU_RTA_EXPIRES, 255 QEMU_RTA_PAD, 256 QEMU_RTA_UID, 257 QEMU_RTA_TTL_PROPAGATE, 258 QEMU_RTA_IP_PROTO, 259 QEMU_RTA_SPORT, 260 QEMU_RTA_DPORT, 261 QEMU___RTA_MAX 262 }; 263 264 TargetFdTrans **target_fd_trans; 265 unsigned int target_fd_max; 266 267 static void tswap_nlmsghdr(struct nlmsghdr *nlh) 268 { 269 nlh->nlmsg_len = tswap32(nlh->nlmsg_len); 270 nlh->nlmsg_type = tswap16(nlh->nlmsg_type); 271 nlh->nlmsg_flags = tswap16(nlh->nlmsg_flags); 272 nlh->nlmsg_seq = tswap32(nlh->nlmsg_seq); 273 nlh->nlmsg_pid = tswap32(nlh->nlmsg_pid); 274 } 275 276 static abi_long host_to_target_for_each_nlmsg(struct nlmsghdr *nlh, 277 size_t len, 278 abi_long (*host_to_target_nlmsg) 279 (struct nlmsghdr *)) 280 { 281 uint32_t nlmsg_len; 282 abi_long ret; 283 284 while (len > sizeof(struct nlmsghdr)) { 285 286 nlmsg_len = nlh->nlmsg_len; 287 if (nlmsg_len < sizeof(struct nlmsghdr) || 288 nlmsg_len > len) { 289 break; 290 } 291 292 switch (nlh->nlmsg_type) { 293 case NLMSG_DONE: 294 tswap_nlmsghdr(nlh); 295 return 0; 296 case NLMSG_NOOP: 297 break; 298 case NLMSG_ERROR: 299 { 300 struct nlmsgerr *e = NLMSG_DATA(nlh); 301 e->error = tswap32(e->error); 302 tswap_nlmsghdr(&e->msg); 303 tswap_nlmsghdr(nlh); 304 return 0; 305 } 306 default: 307 ret = host_to_target_nlmsg(nlh); 308 if (ret < 0) { 309 tswap_nlmsghdr(nlh); 310 return ret; 311 } 312 break; 313 } 314 tswap_nlmsghdr(nlh); 315 len -= NLMSG_ALIGN(nlmsg_len); 316 nlh = (struct nlmsghdr *)(((char*)nlh) + NLMSG_ALIGN(nlmsg_len)); 317 } 318 return 0; 319 } 320 321 static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh, 322 size_t len, 323 abi_long (*target_to_host_nlmsg) 324 (struct nlmsghdr *)) 325 { 326 int ret; 327 328 while (len > sizeof(struct nlmsghdr)) { 329 if (tswap32(nlh->nlmsg_len) < sizeof(struct nlmsghdr) || 330 tswap32(nlh->nlmsg_len) > len) { 331 break; 332 } 333 tswap_nlmsghdr(nlh); 334 switch (nlh->nlmsg_type) { 335 case NLMSG_DONE: 336 return 0; 337 case NLMSG_NOOP: 338 break; 339 case NLMSG_ERROR: 340 { 341 struct nlmsgerr *e = NLMSG_DATA(nlh); 342 e->error = tswap32(e->error); 343 tswap_nlmsghdr(&e->msg); 344 return 0; 345 } 346 default: 347 ret = target_to_host_nlmsg(nlh); 348 if (ret < 0) { 349 return ret; 350 } 351 } 352 len -= NLMSG_ALIGN(nlh->nlmsg_len); 353 nlh = (struct nlmsghdr *)(((char *)nlh) + NLMSG_ALIGN(nlh->nlmsg_len)); 354 } 355 return 0; 356 } 357 358 #ifdef CONFIG_RTNETLINK 359 static abi_long host_to_target_for_each_nlattr(struct nlattr *nlattr, 360 size_t len, void *context, 361 abi_long (*host_to_target_nlattr) 362 (struct nlattr *, 363 void *context)) 364 { 365 unsigned short nla_len; 366 abi_long ret; 367 368 while (len > sizeof(struct nlattr)) { 369 nla_len = nlattr->nla_len; 370 if (nla_len < sizeof(struct nlattr) || 371 nla_len > len) { 372 break; 373 } 374 ret = host_to_target_nlattr(nlattr, context); 375 nlattr->nla_len = tswap16(nlattr->nla_len); 376 nlattr->nla_type = tswap16(nlattr->nla_type); 377 if (ret < 0) { 378 return ret; 379 } 380 len -= NLA_ALIGN(nla_len); 381 nlattr = (struct nlattr *)(((char *)nlattr) + NLA_ALIGN(nla_len)); 382 } 383 return 0; 384 } 385 386 static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr, 387 size_t len, 388 abi_long (*host_to_target_rtattr) 389 (struct rtattr *)) 390 { 391 unsigned short rta_len; 392 abi_long ret; 393 394 while (len > sizeof(struct rtattr)) { 395 rta_len = rtattr->rta_len; 396 if (rta_len < sizeof(struct rtattr) || 397 rta_len > len) { 398 break; 399 } 400 ret = host_to_target_rtattr(rtattr); 401 rtattr->rta_len = tswap16(rtattr->rta_len); 402 rtattr->rta_type = tswap16(rtattr->rta_type); 403 if (ret < 0) { 404 return ret; 405 } 406 len -= RTA_ALIGN(rta_len); 407 rtattr = (struct rtattr *)(((char *)rtattr) + RTA_ALIGN(rta_len)); 408 } 409 return 0; 410 } 411 412 #define NLA_DATA(nla) ((void *)((char *)(nla)) + NLA_HDRLEN) 413 414 static abi_long host_to_target_data_bridge_nlattr(struct nlattr *nlattr, 415 void *context) 416 { 417 uint16_t *u16; 418 uint32_t *u32; 419 uint64_t *u64; 420 421 switch (nlattr->nla_type) { 422 /* no data */ 423 case QEMU_IFLA_BR_FDB_FLUSH: 424 break; 425 /* binary */ 426 case QEMU_IFLA_BR_GROUP_ADDR: 427 break; 428 /* uint8_t */ 429 case QEMU_IFLA_BR_VLAN_FILTERING: 430 case QEMU_IFLA_BR_TOPOLOGY_CHANGE: 431 case QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED: 432 case QEMU_IFLA_BR_MCAST_ROUTER: 433 case QEMU_IFLA_BR_MCAST_SNOOPING: 434 case QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR: 435 case QEMU_IFLA_BR_MCAST_QUERIER: 436 case QEMU_IFLA_BR_NF_CALL_IPTABLES: 437 case QEMU_IFLA_BR_NF_CALL_IP6TABLES: 438 case QEMU_IFLA_BR_NF_CALL_ARPTABLES: 439 case QEMU_IFLA_BR_VLAN_STATS_ENABLED: 440 case QEMU_IFLA_BR_MCAST_STATS_ENABLED: 441 case QEMU_IFLA_BR_MCAST_IGMP_VERSION: 442 case QEMU_IFLA_BR_MCAST_MLD_VERSION: 443 case QEMU_IFLA_BR_VLAN_STATS_PER_PORT: 444 break; 445 /* uint16_t */ 446 case QEMU_IFLA_BR_PRIORITY: 447 case QEMU_IFLA_BR_VLAN_PROTOCOL: 448 case QEMU_IFLA_BR_GROUP_FWD_MASK: 449 case QEMU_IFLA_BR_ROOT_PORT: 450 case QEMU_IFLA_BR_VLAN_DEFAULT_PVID: 451 u16 = NLA_DATA(nlattr); 452 *u16 = tswap16(*u16); 453 break; 454 /* uint32_t */ 455 case QEMU_IFLA_BR_FORWARD_DELAY: 456 case QEMU_IFLA_BR_HELLO_TIME: 457 case QEMU_IFLA_BR_MAX_AGE: 458 case QEMU_IFLA_BR_AGEING_TIME: 459 case QEMU_IFLA_BR_STP_STATE: 460 case QEMU_IFLA_BR_ROOT_PATH_COST: 461 case QEMU_IFLA_BR_MCAST_HASH_ELASTICITY: 462 case QEMU_IFLA_BR_MCAST_HASH_MAX: 463 case QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT: 464 case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT: 465 u32 = NLA_DATA(nlattr); 466 *u32 = tswap32(*u32); 467 break; 468 /* uint64_t */ 469 case QEMU_IFLA_BR_HELLO_TIMER: 470 case QEMU_IFLA_BR_TCN_TIMER: 471 case QEMU_IFLA_BR_GC_TIMER: 472 case QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER: 473 case QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL: 474 case QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL: 475 case QEMU_IFLA_BR_MCAST_QUERIER_INTVL: 476 case QEMU_IFLA_BR_MCAST_QUERY_INTVL: 477 case QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL: 478 case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL: 479 u64 = NLA_DATA(nlattr); 480 *u64 = tswap64(*u64); 481 break; 482 /* ifla_bridge_id: uin8_t[] */ 483 case QEMU_IFLA_BR_ROOT_ID: 484 case QEMU_IFLA_BR_BRIDGE_ID: 485 break; 486 /* br_boolopt_multi { uint32_t, uint32_t } */ 487 case QEMU_IFLA_BR_MULTI_BOOLOPT: 488 u32 = NLA_DATA(nlattr); 489 u32[0] = tswap32(u32[0]); /* optval */ 490 u32[1] = tswap32(u32[1]); /* optmask */ 491 break; 492 default: 493 gemu_log("Unknown QEMU_IFLA_BR type %d\n", nlattr->nla_type); 494 break; 495 } 496 return 0; 497 } 498 499 static abi_long host_to_target_slave_data_bridge_nlattr(struct nlattr *nlattr, 500 void *context) 501 { 502 uint16_t *u16; 503 uint32_t *u32; 504 uint64_t *u64; 505 506 switch (nlattr->nla_type) { 507 /* uint8_t */ 508 case QEMU_IFLA_BRPORT_STATE: 509 case QEMU_IFLA_BRPORT_MODE: 510 case QEMU_IFLA_BRPORT_GUARD: 511 case QEMU_IFLA_BRPORT_PROTECT: 512 case QEMU_IFLA_BRPORT_FAST_LEAVE: 513 case QEMU_IFLA_BRPORT_LEARNING: 514 case QEMU_IFLA_BRPORT_UNICAST_FLOOD: 515 case QEMU_IFLA_BRPORT_PROXYARP: 516 case QEMU_IFLA_BRPORT_LEARNING_SYNC: 517 case QEMU_IFLA_BRPORT_PROXYARP_WIFI: 518 case QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK: 519 case QEMU_IFLA_BRPORT_CONFIG_PENDING: 520 case QEMU_IFLA_BRPORT_MULTICAST_ROUTER: 521 case QEMU_IFLA_BRPORT_MCAST_FLOOD: 522 case QEMU_IFLA_BRPORT_MCAST_TO_UCAST: 523 case QEMU_IFLA_BRPORT_VLAN_TUNNEL: 524 case QEMU_IFLA_BRPORT_BCAST_FLOOD: 525 case QEMU_IFLA_BRPORT_NEIGH_SUPPRESS: 526 case QEMU_IFLA_BRPORT_ISOLATED: 527 break; 528 /* uint16_t */ 529 case QEMU_IFLA_BRPORT_PRIORITY: 530 case QEMU_IFLA_BRPORT_DESIGNATED_PORT: 531 case QEMU_IFLA_BRPORT_DESIGNATED_COST: 532 case QEMU_IFLA_BRPORT_ID: 533 case QEMU_IFLA_BRPORT_NO: 534 case QEMU_IFLA_BRPORT_GROUP_FWD_MASK: 535 u16 = NLA_DATA(nlattr); 536 *u16 = tswap16(*u16); 537 break; 538 /* uin32_t */ 539 case QEMU_IFLA_BRPORT_COST: 540 case QEMU_IFLA_BRPORT_BACKUP_PORT: 541 u32 = NLA_DATA(nlattr); 542 *u32 = tswap32(*u32); 543 break; 544 /* uint64_t */ 545 case QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER: 546 case QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER: 547 case QEMU_IFLA_BRPORT_HOLD_TIMER: 548 u64 = NLA_DATA(nlattr); 549 *u64 = tswap64(*u64); 550 break; 551 /* ifla_bridge_id: uint8_t[] */ 552 case QEMU_IFLA_BRPORT_ROOT_ID: 553 case QEMU_IFLA_BRPORT_BRIDGE_ID: 554 break; 555 default: 556 gemu_log("Unknown QEMU_IFLA_BRPORT type %d\n", nlattr->nla_type); 557 break; 558 } 559 return 0; 560 } 561 562 static abi_long host_to_target_data_tun_nlattr(struct nlattr *nlattr, 563 void *context) 564 { 565 uint32_t *u32; 566 567 switch (nlattr->nla_type) { 568 /* uint8_t */ 569 case QEMU_IFLA_TUN_TYPE: 570 case QEMU_IFLA_TUN_PI: 571 case QEMU_IFLA_TUN_VNET_HDR: 572 case QEMU_IFLA_TUN_PERSIST: 573 case QEMU_IFLA_TUN_MULTI_QUEUE: 574 break; 575 /* uint32_t */ 576 case QEMU_IFLA_TUN_NUM_QUEUES: 577 case QEMU_IFLA_TUN_NUM_DISABLED_QUEUES: 578 case QEMU_IFLA_TUN_OWNER: 579 case QEMU_IFLA_TUN_GROUP: 580 u32 = NLA_DATA(nlattr); 581 *u32 = tswap32(*u32); 582 break; 583 default: 584 gemu_log("Unknown QEMU_IFLA_TUN type %d\n", nlattr->nla_type); 585 break; 586 } 587 return 0; 588 } 589 590 struct linkinfo_context { 591 int len; 592 char *name; 593 int slave_len; 594 char *slave_name; 595 }; 596 597 static abi_long host_to_target_data_linkinfo_nlattr(struct nlattr *nlattr, 598 void *context) 599 { 600 struct linkinfo_context *li_context = context; 601 602 switch (nlattr->nla_type) { 603 /* string */ 604 case QEMU_IFLA_INFO_KIND: 605 li_context->name = NLA_DATA(nlattr); 606 li_context->len = nlattr->nla_len - NLA_HDRLEN; 607 break; 608 case QEMU_IFLA_INFO_SLAVE_KIND: 609 li_context->slave_name = NLA_DATA(nlattr); 610 li_context->slave_len = nlattr->nla_len - NLA_HDRLEN; 611 break; 612 /* stats */ 613 case QEMU_IFLA_INFO_XSTATS: 614 /* FIXME: only used by CAN */ 615 break; 616 /* nested */ 617 case QEMU_IFLA_INFO_DATA: 618 if (strncmp(li_context->name, "bridge", 619 li_context->len) == 0) { 620 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), 621 nlattr->nla_len, 622 NULL, 623 host_to_target_data_bridge_nlattr); 624 } else if (strncmp(li_context->name, "tun", 625 li_context->len) == 0) { 626 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), 627 nlattr->nla_len, 628 NULL, 629 host_to_target_data_tun_nlattr); 630 } else { 631 gemu_log("Unknown QEMU_IFLA_INFO_KIND %s\n", li_context->name); 632 } 633 break; 634 case QEMU_IFLA_INFO_SLAVE_DATA: 635 if (strncmp(li_context->slave_name, "bridge", 636 li_context->slave_len) == 0) { 637 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), 638 nlattr->nla_len, 639 NULL, 640 host_to_target_slave_data_bridge_nlattr); 641 } else { 642 gemu_log("Unknown QEMU_IFLA_INFO_SLAVE_KIND %s\n", 643 li_context->slave_name); 644 } 645 break; 646 default: 647 gemu_log("Unknown host QEMU_IFLA_INFO type: %d\n", nlattr->nla_type); 648 break; 649 } 650 651 return 0; 652 } 653 654 static abi_long host_to_target_data_inet_nlattr(struct nlattr *nlattr, 655 void *context) 656 { 657 uint32_t *u32; 658 int i; 659 660 switch (nlattr->nla_type) { 661 case QEMU_IFLA_INET_CONF: 662 u32 = NLA_DATA(nlattr); 663 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32); 664 i++) { 665 u32[i] = tswap32(u32[i]); 666 } 667 break; 668 default: 669 gemu_log("Unknown host AF_INET type: %d\n", nlattr->nla_type); 670 } 671 return 0; 672 } 673 674 static abi_long host_to_target_data_inet6_nlattr(struct nlattr *nlattr, 675 void *context) 676 { 677 uint32_t *u32; 678 uint64_t *u64; 679 struct ifla_cacheinfo *ci; 680 int i; 681 682 switch (nlattr->nla_type) { 683 /* binaries */ 684 case QEMU_IFLA_INET6_TOKEN: 685 break; 686 /* uint8_t */ 687 case QEMU_IFLA_INET6_ADDR_GEN_MODE: 688 break; 689 /* uint32_t */ 690 case QEMU_IFLA_INET6_FLAGS: 691 u32 = NLA_DATA(nlattr); 692 *u32 = tswap32(*u32); 693 break; 694 /* uint32_t[] */ 695 case QEMU_IFLA_INET6_CONF: 696 u32 = NLA_DATA(nlattr); 697 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32); 698 i++) { 699 u32[i] = tswap32(u32[i]); 700 } 701 break; 702 /* ifla_cacheinfo */ 703 case QEMU_IFLA_INET6_CACHEINFO: 704 ci = NLA_DATA(nlattr); 705 ci->max_reasm_len = tswap32(ci->max_reasm_len); 706 ci->tstamp = tswap32(ci->tstamp); 707 ci->reachable_time = tswap32(ci->reachable_time); 708 ci->retrans_time = tswap32(ci->retrans_time); 709 break; 710 /* uint64_t[] */ 711 case QEMU_IFLA_INET6_STATS: 712 case QEMU_IFLA_INET6_ICMP6STATS: 713 u64 = NLA_DATA(nlattr); 714 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u64); 715 i++) { 716 u64[i] = tswap64(u64[i]); 717 } 718 break; 719 default: 720 gemu_log("Unknown host AF_INET6 type: %d\n", nlattr->nla_type); 721 } 722 return 0; 723 } 724 725 static abi_long host_to_target_data_spec_nlattr(struct nlattr *nlattr, 726 void *context) 727 { 728 switch (nlattr->nla_type) { 729 case AF_INET: 730 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len, 731 NULL, 732 host_to_target_data_inet_nlattr); 733 case AF_INET6: 734 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len, 735 NULL, 736 host_to_target_data_inet6_nlattr); 737 default: 738 gemu_log("Unknown host AF_SPEC type: %d\n", nlattr->nla_type); 739 break; 740 } 741 return 0; 742 } 743 744 static abi_long host_to_target_data_xdp_nlattr(struct nlattr *nlattr, 745 void *context) 746 { 747 uint32_t *u32; 748 749 switch (nlattr->nla_type) { 750 /* uint8_t */ 751 case QEMU_IFLA_XDP_ATTACHED: 752 break; 753 /* uint32_t */ 754 case QEMU_IFLA_XDP_PROG_ID: 755 u32 = NLA_DATA(nlattr); 756 *u32 = tswap32(*u32); 757 break; 758 default: 759 gemu_log("Unknown host XDP type: %d\n", nlattr->nla_type); 760 break; 761 } 762 return 0; 763 } 764 765 static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr) 766 { 767 uint32_t *u32; 768 struct rtnl_link_stats *st; 769 struct rtnl_link_stats64 *st64; 770 struct rtnl_link_ifmap *map; 771 struct linkinfo_context li_context; 772 773 switch (rtattr->rta_type) { 774 /* binary stream */ 775 case QEMU_IFLA_ADDRESS: 776 case QEMU_IFLA_BROADCAST: 777 /* string */ 778 case QEMU_IFLA_IFNAME: 779 case QEMU_IFLA_QDISC: 780 break; 781 /* uin8_t */ 782 case QEMU_IFLA_OPERSTATE: 783 case QEMU_IFLA_LINKMODE: 784 case QEMU_IFLA_CARRIER: 785 case QEMU_IFLA_PROTO_DOWN: 786 break; 787 /* uint32_t */ 788 case QEMU_IFLA_MTU: 789 case QEMU_IFLA_LINK: 790 case QEMU_IFLA_WEIGHT: 791 case QEMU_IFLA_TXQLEN: 792 case QEMU_IFLA_CARRIER_CHANGES: 793 case QEMU_IFLA_NUM_RX_QUEUES: 794 case QEMU_IFLA_NUM_TX_QUEUES: 795 case QEMU_IFLA_PROMISCUITY: 796 case QEMU_IFLA_EXT_MASK: 797 case QEMU_IFLA_LINK_NETNSID: 798 case QEMU_IFLA_GROUP: 799 case QEMU_IFLA_MASTER: 800 case QEMU_IFLA_NUM_VF: 801 case QEMU_IFLA_GSO_MAX_SEGS: 802 case QEMU_IFLA_GSO_MAX_SIZE: 803 case QEMU_IFLA_CARRIER_UP_COUNT: 804 case QEMU_IFLA_CARRIER_DOWN_COUNT: 805 case QEMU_IFLA_MIN_MTU: 806 case QEMU_IFLA_MAX_MTU: 807 u32 = RTA_DATA(rtattr); 808 *u32 = tswap32(*u32); 809 break; 810 /* struct rtnl_link_stats */ 811 case QEMU_IFLA_STATS: 812 st = RTA_DATA(rtattr); 813 st->rx_packets = tswap32(st->rx_packets); 814 st->tx_packets = tswap32(st->tx_packets); 815 st->rx_bytes = tswap32(st->rx_bytes); 816 st->tx_bytes = tswap32(st->tx_bytes); 817 st->rx_errors = tswap32(st->rx_errors); 818 st->tx_errors = tswap32(st->tx_errors); 819 st->rx_dropped = tswap32(st->rx_dropped); 820 st->tx_dropped = tswap32(st->tx_dropped); 821 st->multicast = tswap32(st->multicast); 822 st->collisions = tswap32(st->collisions); 823 824 /* detailed rx_errors: */ 825 st->rx_length_errors = tswap32(st->rx_length_errors); 826 st->rx_over_errors = tswap32(st->rx_over_errors); 827 st->rx_crc_errors = tswap32(st->rx_crc_errors); 828 st->rx_frame_errors = tswap32(st->rx_frame_errors); 829 st->rx_fifo_errors = tswap32(st->rx_fifo_errors); 830 st->rx_missed_errors = tswap32(st->rx_missed_errors); 831 832 /* detailed tx_errors */ 833 st->tx_aborted_errors = tswap32(st->tx_aborted_errors); 834 st->tx_carrier_errors = tswap32(st->tx_carrier_errors); 835 st->tx_fifo_errors = tswap32(st->tx_fifo_errors); 836 st->tx_heartbeat_errors = tswap32(st->tx_heartbeat_errors); 837 st->tx_window_errors = tswap32(st->tx_window_errors); 838 839 /* for cslip etc */ 840 st->rx_compressed = tswap32(st->rx_compressed); 841 st->tx_compressed = tswap32(st->tx_compressed); 842 break; 843 /* struct rtnl_link_stats64 */ 844 case QEMU_IFLA_STATS64: 845 st64 = RTA_DATA(rtattr); 846 st64->rx_packets = tswap64(st64->rx_packets); 847 st64->tx_packets = tswap64(st64->tx_packets); 848 st64->rx_bytes = tswap64(st64->rx_bytes); 849 st64->tx_bytes = tswap64(st64->tx_bytes); 850 st64->rx_errors = tswap64(st64->rx_errors); 851 st64->tx_errors = tswap64(st64->tx_errors); 852 st64->rx_dropped = tswap64(st64->rx_dropped); 853 st64->tx_dropped = tswap64(st64->tx_dropped); 854 st64->multicast = tswap64(st64->multicast); 855 st64->collisions = tswap64(st64->collisions); 856 857 /* detailed rx_errors: */ 858 st64->rx_length_errors = tswap64(st64->rx_length_errors); 859 st64->rx_over_errors = tswap64(st64->rx_over_errors); 860 st64->rx_crc_errors = tswap64(st64->rx_crc_errors); 861 st64->rx_frame_errors = tswap64(st64->rx_frame_errors); 862 st64->rx_fifo_errors = tswap64(st64->rx_fifo_errors); 863 st64->rx_missed_errors = tswap64(st64->rx_missed_errors); 864 865 /* detailed tx_errors */ 866 st64->tx_aborted_errors = tswap64(st64->tx_aborted_errors); 867 st64->tx_carrier_errors = tswap64(st64->tx_carrier_errors); 868 st64->tx_fifo_errors = tswap64(st64->tx_fifo_errors); 869 st64->tx_heartbeat_errors = tswap64(st64->tx_heartbeat_errors); 870 st64->tx_window_errors = tswap64(st64->tx_window_errors); 871 872 /* for cslip etc */ 873 st64->rx_compressed = tswap64(st64->rx_compressed); 874 st64->tx_compressed = tswap64(st64->tx_compressed); 875 break; 876 /* struct rtnl_link_ifmap */ 877 case QEMU_IFLA_MAP: 878 map = RTA_DATA(rtattr); 879 map->mem_start = tswap64(map->mem_start); 880 map->mem_end = tswap64(map->mem_end); 881 map->base_addr = tswap64(map->base_addr); 882 map->irq = tswap16(map->irq); 883 break; 884 /* nested */ 885 case QEMU_IFLA_LINKINFO: 886 memset(&li_context, 0, sizeof(li_context)); 887 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len, 888 &li_context, 889 host_to_target_data_linkinfo_nlattr); 890 case QEMU_IFLA_AF_SPEC: 891 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len, 892 NULL, 893 host_to_target_data_spec_nlattr); 894 case QEMU_IFLA_XDP: 895 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len, 896 NULL, 897 host_to_target_data_xdp_nlattr); 898 default: 899 gemu_log("Unknown host QEMU_IFLA type: %d\n", rtattr->rta_type); 900 break; 901 } 902 return 0; 903 } 904 905 static abi_long host_to_target_data_addr_rtattr(struct rtattr *rtattr) 906 { 907 uint32_t *u32; 908 struct ifa_cacheinfo *ci; 909 910 switch (rtattr->rta_type) { 911 /* binary: depends on family type */ 912 case IFA_ADDRESS: 913 case IFA_LOCAL: 914 break; 915 /* string */ 916 case IFA_LABEL: 917 break; 918 /* u32 */ 919 case IFA_FLAGS: 920 case IFA_BROADCAST: 921 u32 = RTA_DATA(rtattr); 922 *u32 = tswap32(*u32); 923 break; 924 /* struct ifa_cacheinfo */ 925 case IFA_CACHEINFO: 926 ci = RTA_DATA(rtattr); 927 ci->ifa_prefered = tswap32(ci->ifa_prefered); 928 ci->ifa_valid = tswap32(ci->ifa_valid); 929 ci->cstamp = tswap32(ci->cstamp); 930 ci->tstamp = tswap32(ci->tstamp); 931 break; 932 default: 933 gemu_log("Unknown host IFA type: %d\n", rtattr->rta_type); 934 break; 935 } 936 return 0; 937 } 938 939 static abi_long host_to_target_data_route_rtattr(struct rtattr *rtattr) 940 { 941 uint32_t *u32; 942 struct rta_cacheinfo *ci; 943 944 switch (rtattr->rta_type) { 945 /* binary: depends on family type */ 946 case QEMU_RTA_GATEWAY: 947 case QEMU_RTA_DST: 948 case QEMU_RTA_PREFSRC: 949 break; 950 /* u8 */ 951 case QEMU_RTA_PREF: 952 break; 953 /* u32 */ 954 case QEMU_RTA_PRIORITY: 955 case QEMU_RTA_TABLE: 956 case QEMU_RTA_OIF: 957 u32 = RTA_DATA(rtattr); 958 *u32 = tswap32(*u32); 959 break; 960 /* struct rta_cacheinfo */ 961 case QEMU_RTA_CACHEINFO: 962 ci = RTA_DATA(rtattr); 963 ci->rta_clntref = tswap32(ci->rta_clntref); 964 ci->rta_lastuse = tswap32(ci->rta_lastuse); 965 ci->rta_expires = tswap32(ci->rta_expires); 966 ci->rta_error = tswap32(ci->rta_error); 967 ci->rta_used = tswap32(ci->rta_used); 968 #if defined(RTNETLINK_HAVE_PEERINFO) 969 ci->rta_id = tswap32(ci->rta_id); 970 ci->rta_ts = tswap32(ci->rta_ts); 971 ci->rta_tsage = tswap32(ci->rta_tsage); 972 #endif 973 break; 974 default: 975 gemu_log("Unknown host RTA type: %d\n", rtattr->rta_type); 976 break; 977 } 978 return 0; 979 } 980 981 static abi_long host_to_target_link_rtattr(struct rtattr *rtattr, 982 uint32_t rtattr_len) 983 { 984 return host_to_target_for_each_rtattr(rtattr, rtattr_len, 985 host_to_target_data_link_rtattr); 986 } 987 988 static abi_long host_to_target_addr_rtattr(struct rtattr *rtattr, 989 uint32_t rtattr_len) 990 { 991 return host_to_target_for_each_rtattr(rtattr, rtattr_len, 992 host_to_target_data_addr_rtattr); 993 } 994 995 static abi_long host_to_target_route_rtattr(struct rtattr *rtattr, 996 uint32_t rtattr_len) 997 { 998 return host_to_target_for_each_rtattr(rtattr, rtattr_len, 999 host_to_target_data_route_rtattr); 1000 } 1001 1002 static abi_long host_to_target_data_route(struct nlmsghdr *nlh) 1003 { 1004 uint32_t nlmsg_len; 1005 struct ifinfomsg *ifi; 1006 struct ifaddrmsg *ifa; 1007 struct rtmsg *rtm; 1008 1009 nlmsg_len = nlh->nlmsg_len; 1010 switch (nlh->nlmsg_type) { 1011 case RTM_NEWLINK: 1012 case RTM_DELLINK: 1013 case RTM_GETLINK: 1014 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) { 1015 ifi = NLMSG_DATA(nlh); 1016 ifi->ifi_type = tswap16(ifi->ifi_type); 1017 ifi->ifi_index = tswap32(ifi->ifi_index); 1018 ifi->ifi_flags = tswap32(ifi->ifi_flags); 1019 ifi->ifi_change = tswap32(ifi->ifi_change); 1020 host_to_target_link_rtattr(IFLA_RTA(ifi), 1021 nlmsg_len - NLMSG_LENGTH(sizeof(*ifi))); 1022 } 1023 break; 1024 case RTM_NEWADDR: 1025 case RTM_DELADDR: 1026 case RTM_GETADDR: 1027 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) { 1028 ifa = NLMSG_DATA(nlh); 1029 ifa->ifa_index = tswap32(ifa->ifa_index); 1030 host_to_target_addr_rtattr(IFA_RTA(ifa), 1031 nlmsg_len - NLMSG_LENGTH(sizeof(*ifa))); 1032 } 1033 break; 1034 case RTM_NEWROUTE: 1035 case RTM_DELROUTE: 1036 case RTM_GETROUTE: 1037 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) { 1038 rtm = NLMSG_DATA(nlh); 1039 rtm->rtm_flags = tswap32(rtm->rtm_flags); 1040 host_to_target_route_rtattr(RTM_RTA(rtm), 1041 nlmsg_len - NLMSG_LENGTH(sizeof(*rtm))); 1042 } 1043 break; 1044 default: 1045 return -TARGET_EINVAL; 1046 } 1047 return 0; 1048 } 1049 1050 static inline abi_long host_to_target_nlmsg_route(struct nlmsghdr *nlh, 1051 size_t len) 1052 { 1053 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_route); 1054 } 1055 1056 static abi_long target_to_host_for_each_rtattr(struct rtattr *rtattr, 1057 size_t len, 1058 abi_long (*target_to_host_rtattr) 1059 (struct rtattr *)) 1060 { 1061 abi_long ret; 1062 1063 while (len >= sizeof(struct rtattr)) { 1064 if (tswap16(rtattr->rta_len) < sizeof(struct rtattr) || 1065 tswap16(rtattr->rta_len) > len) { 1066 break; 1067 } 1068 rtattr->rta_len = tswap16(rtattr->rta_len); 1069 rtattr->rta_type = tswap16(rtattr->rta_type); 1070 ret = target_to_host_rtattr(rtattr); 1071 if (ret < 0) { 1072 return ret; 1073 } 1074 len -= RTA_ALIGN(rtattr->rta_len); 1075 rtattr = (struct rtattr *)(((char *)rtattr) + 1076 RTA_ALIGN(rtattr->rta_len)); 1077 } 1078 return 0; 1079 } 1080 1081 static abi_long target_to_host_data_link_rtattr(struct rtattr *rtattr) 1082 { 1083 switch (rtattr->rta_type) { 1084 default: 1085 gemu_log("Unknown target QEMU_IFLA type: %d\n", rtattr->rta_type); 1086 break; 1087 } 1088 return 0; 1089 } 1090 1091 static abi_long target_to_host_data_addr_rtattr(struct rtattr *rtattr) 1092 { 1093 switch (rtattr->rta_type) { 1094 /* binary: depends on family type */ 1095 case IFA_LOCAL: 1096 case IFA_ADDRESS: 1097 break; 1098 default: 1099 gemu_log("Unknown target IFA type: %d\n", rtattr->rta_type); 1100 break; 1101 } 1102 return 0; 1103 } 1104 1105 static abi_long target_to_host_data_route_rtattr(struct rtattr *rtattr) 1106 { 1107 uint32_t *u32; 1108 switch (rtattr->rta_type) { 1109 /* binary: depends on family type */ 1110 case QEMU_RTA_DST: 1111 case QEMU_RTA_SRC: 1112 case QEMU_RTA_GATEWAY: 1113 break; 1114 /* u32 */ 1115 case QEMU_RTA_PRIORITY: 1116 case QEMU_RTA_OIF: 1117 u32 = RTA_DATA(rtattr); 1118 *u32 = tswap32(*u32); 1119 break; 1120 default: 1121 gemu_log("Unknown target RTA type: %d\n", rtattr->rta_type); 1122 break; 1123 } 1124 return 0; 1125 } 1126 1127 static void target_to_host_link_rtattr(struct rtattr *rtattr, 1128 uint32_t rtattr_len) 1129 { 1130 target_to_host_for_each_rtattr(rtattr, rtattr_len, 1131 target_to_host_data_link_rtattr); 1132 } 1133 1134 static void target_to_host_addr_rtattr(struct rtattr *rtattr, 1135 uint32_t rtattr_len) 1136 { 1137 target_to_host_for_each_rtattr(rtattr, rtattr_len, 1138 target_to_host_data_addr_rtattr); 1139 } 1140 1141 static void target_to_host_route_rtattr(struct rtattr *rtattr, 1142 uint32_t rtattr_len) 1143 { 1144 target_to_host_for_each_rtattr(rtattr, rtattr_len, 1145 target_to_host_data_route_rtattr); 1146 } 1147 1148 static abi_long target_to_host_data_route(struct nlmsghdr *nlh) 1149 { 1150 struct ifinfomsg *ifi; 1151 struct ifaddrmsg *ifa; 1152 struct rtmsg *rtm; 1153 1154 switch (nlh->nlmsg_type) { 1155 case RTM_GETLINK: 1156 break; 1157 case RTM_NEWLINK: 1158 case RTM_DELLINK: 1159 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) { 1160 ifi = NLMSG_DATA(nlh); 1161 ifi->ifi_type = tswap16(ifi->ifi_type); 1162 ifi->ifi_index = tswap32(ifi->ifi_index); 1163 ifi->ifi_flags = tswap32(ifi->ifi_flags); 1164 ifi->ifi_change = tswap32(ifi->ifi_change); 1165 target_to_host_link_rtattr(IFLA_RTA(ifi), nlh->nlmsg_len - 1166 NLMSG_LENGTH(sizeof(*ifi))); 1167 } 1168 break; 1169 case RTM_GETADDR: 1170 case RTM_NEWADDR: 1171 case RTM_DELADDR: 1172 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) { 1173 ifa = NLMSG_DATA(nlh); 1174 ifa->ifa_index = tswap32(ifa->ifa_index); 1175 target_to_host_addr_rtattr(IFA_RTA(ifa), nlh->nlmsg_len - 1176 NLMSG_LENGTH(sizeof(*ifa))); 1177 } 1178 break; 1179 case RTM_GETROUTE: 1180 break; 1181 case RTM_NEWROUTE: 1182 case RTM_DELROUTE: 1183 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) { 1184 rtm = NLMSG_DATA(nlh); 1185 rtm->rtm_flags = tswap32(rtm->rtm_flags); 1186 target_to_host_route_rtattr(RTM_RTA(rtm), nlh->nlmsg_len - 1187 NLMSG_LENGTH(sizeof(*rtm))); 1188 } 1189 break; 1190 default: 1191 return -TARGET_EOPNOTSUPP; 1192 } 1193 return 0; 1194 } 1195 1196 static abi_long target_to_host_nlmsg_route(struct nlmsghdr *nlh, size_t len) 1197 { 1198 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_route); 1199 } 1200 #endif /* CONFIG_RTNETLINK */ 1201 1202 static abi_long host_to_target_data_audit(struct nlmsghdr *nlh) 1203 { 1204 switch (nlh->nlmsg_type) { 1205 default: 1206 gemu_log("Unknown host audit message type %d\n", 1207 nlh->nlmsg_type); 1208 return -TARGET_EINVAL; 1209 } 1210 return 0; 1211 } 1212 1213 static inline abi_long host_to_target_nlmsg_audit(struct nlmsghdr *nlh, 1214 size_t len) 1215 { 1216 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_audit); 1217 } 1218 1219 static abi_long target_to_host_data_audit(struct nlmsghdr *nlh) 1220 { 1221 switch (nlh->nlmsg_type) { 1222 case AUDIT_USER: 1223 case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG: 1224 case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2: 1225 break; 1226 default: 1227 gemu_log("Unknown target audit message type %d\n", 1228 nlh->nlmsg_type); 1229 return -TARGET_EINVAL; 1230 } 1231 1232 return 0; 1233 } 1234 1235 static abi_long target_to_host_nlmsg_audit(struct nlmsghdr *nlh, size_t len) 1236 { 1237 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_audit); 1238 } 1239 1240 static abi_long packet_target_to_host_sockaddr(void *host_addr, 1241 abi_ulong target_addr, 1242 socklen_t len) 1243 { 1244 struct sockaddr *addr = host_addr; 1245 struct target_sockaddr *target_saddr; 1246 1247 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); 1248 if (!target_saddr) { 1249 return -TARGET_EFAULT; 1250 } 1251 1252 memcpy(addr, target_saddr, len); 1253 addr->sa_family = tswap16(target_saddr->sa_family); 1254 /* spkt_protocol is big-endian */ 1255 1256 unlock_user(target_saddr, target_addr, 0); 1257 return 0; 1258 } 1259 1260 TargetFdTrans target_packet_trans = { 1261 .target_to_host_addr = packet_target_to_host_sockaddr, 1262 }; 1263 1264 #ifdef CONFIG_RTNETLINK 1265 static abi_long netlink_route_target_to_host(void *buf, size_t len) 1266 { 1267 abi_long ret; 1268 1269 ret = target_to_host_nlmsg_route(buf, len); 1270 if (ret < 0) { 1271 return ret; 1272 } 1273 1274 return len; 1275 } 1276 1277 static abi_long netlink_route_host_to_target(void *buf, size_t len) 1278 { 1279 abi_long ret; 1280 1281 ret = host_to_target_nlmsg_route(buf, len); 1282 if (ret < 0) { 1283 return ret; 1284 } 1285 1286 return len; 1287 } 1288 1289 TargetFdTrans target_netlink_route_trans = { 1290 .target_to_host_data = netlink_route_target_to_host, 1291 .host_to_target_data = netlink_route_host_to_target, 1292 }; 1293 #endif /* CONFIG_RTNETLINK */ 1294 1295 static abi_long netlink_audit_target_to_host(void *buf, size_t len) 1296 { 1297 abi_long ret; 1298 1299 ret = target_to_host_nlmsg_audit(buf, len); 1300 if (ret < 0) { 1301 return ret; 1302 } 1303 1304 return len; 1305 } 1306 1307 static abi_long netlink_audit_host_to_target(void *buf, size_t len) 1308 { 1309 abi_long ret; 1310 1311 ret = host_to_target_nlmsg_audit(buf, len); 1312 if (ret < 0) { 1313 return ret; 1314 } 1315 1316 return len; 1317 } 1318 1319 TargetFdTrans target_netlink_audit_trans = { 1320 .target_to_host_data = netlink_audit_target_to_host, 1321 .host_to_target_data = netlink_audit_host_to_target, 1322 }; 1323 1324 /* signalfd siginfo conversion */ 1325 1326 static void 1327 host_to_target_signalfd_siginfo(struct signalfd_siginfo *tinfo, 1328 const struct signalfd_siginfo *info) 1329 { 1330 int sig = host_to_target_signal(info->ssi_signo); 1331 1332 /* linux/signalfd.h defines a ssi_addr_lsb 1333 * not defined in sys/signalfd.h but used by some kernels 1334 */ 1335 1336 #ifdef BUS_MCEERR_AO 1337 if (tinfo->ssi_signo == SIGBUS && 1338 (tinfo->ssi_code == BUS_MCEERR_AR || 1339 tinfo->ssi_code == BUS_MCEERR_AO)) { 1340 uint16_t *ssi_addr_lsb = (uint16_t *)(&info->ssi_addr + 1); 1341 uint16_t *tssi_addr_lsb = (uint16_t *)(&tinfo->ssi_addr + 1); 1342 *tssi_addr_lsb = tswap16(*ssi_addr_lsb); 1343 } 1344 #endif 1345 1346 tinfo->ssi_signo = tswap32(sig); 1347 tinfo->ssi_errno = tswap32(tinfo->ssi_errno); 1348 tinfo->ssi_code = tswap32(info->ssi_code); 1349 tinfo->ssi_pid = tswap32(info->ssi_pid); 1350 tinfo->ssi_uid = tswap32(info->ssi_uid); 1351 tinfo->ssi_fd = tswap32(info->ssi_fd); 1352 tinfo->ssi_tid = tswap32(info->ssi_tid); 1353 tinfo->ssi_band = tswap32(info->ssi_band); 1354 tinfo->ssi_overrun = tswap32(info->ssi_overrun); 1355 tinfo->ssi_trapno = tswap32(info->ssi_trapno); 1356 tinfo->ssi_status = tswap32(info->ssi_status); 1357 tinfo->ssi_int = tswap32(info->ssi_int); 1358 tinfo->ssi_ptr = tswap64(info->ssi_ptr); 1359 tinfo->ssi_utime = tswap64(info->ssi_utime); 1360 tinfo->ssi_stime = tswap64(info->ssi_stime); 1361 tinfo->ssi_addr = tswap64(info->ssi_addr); 1362 } 1363 1364 static abi_long host_to_target_data_signalfd(void *buf, size_t len) 1365 { 1366 int i; 1367 1368 for (i = 0; i < len; i += sizeof(struct signalfd_siginfo)) { 1369 host_to_target_signalfd_siginfo(buf + i, buf + i); 1370 } 1371 1372 return len; 1373 } 1374 1375 TargetFdTrans target_signalfd_trans = { 1376 .host_to_target_data = host_to_target_data_signalfd, 1377 }; 1378 1379 static abi_long swap_data_eventfd(void *buf, size_t len) 1380 { 1381 uint64_t *counter = buf; 1382 int i; 1383 1384 if (len < sizeof(uint64_t)) { 1385 return -EINVAL; 1386 } 1387 1388 for (i = 0; i < len; i += sizeof(uint64_t)) { 1389 *counter = tswap64(*counter); 1390 counter++; 1391 } 1392 1393 return len; 1394 } 1395 1396 TargetFdTrans target_eventfd_trans = { 1397 .host_to_target_data = swap_data_eventfd, 1398 .target_to_host_data = swap_data_eventfd, 1399 }; 1400 1401 #if (defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)) || \ 1402 (defined(CONFIG_INOTIFY1) && defined(TARGET_NR_inotify_init1) && \ 1403 defined(__NR_inotify_init1)) 1404 static abi_long host_to_target_data_inotify(void *buf, size_t len) 1405 { 1406 struct inotify_event *ev; 1407 int i; 1408 uint32_t name_len; 1409 1410 for (i = 0; i < len; i += sizeof(struct inotify_event) + name_len) { 1411 ev = (struct inotify_event *)((char *)buf + i); 1412 name_len = ev->len; 1413 1414 ev->wd = tswap32(ev->wd); 1415 ev->mask = tswap32(ev->mask); 1416 ev->cookie = tswap32(ev->cookie); 1417 ev->len = tswap32(name_len); 1418 } 1419 1420 return len; 1421 } 1422 1423 TargetFdTrans target_inotify_trans = { 1424 .host_to_target_data = host_to_target_data_inotify, 1425 }; 1426 #endif 1427