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.
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.
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/>.
16 #include "qemu/osdep.h"
18 #include <sys/signalfd.h>
19 #include <linux/unistd.h>
20 #include <linux/audit.h>
22 #include <sys/inotify.h>
24 #include <linux/netlink.h>
25 #ifdef CONFIG_RTNETLINK
26 #include <linux/rtnetlink.h>
27 #include <linux/if_bridge.h>
34 QEMU_IFLA_BR_FORWARD_DELAY,
35 QEMU_IFLA_BR_HELLO_TIME,
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,
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,
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,
103 QEMU_IFLA_NET_NS_PID,
106 QEMU_IFLA_VFINFO_LIST,
114 QEMU_IFLA_PROMISCUITY,
115 QEMU_IFLA_NUM_TX_QUEUES,
116 QEMU_IFLA_NUM_RX_QUEUES,
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,
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,
137 QEMU_IFLA_ALT_IFNAME,
138 QEMU_IFLA_PERM_ADDRESS,
143 QEMU_IFLA_BRPORT_UNSPEC,
144 QEMU_IFLA_BRPORT_STATE,
145 QEMU_IFLA_BRPORT_PRIORITY,
146 QEMU_IFLA_BRPORT_COST,
147 QEMU_IFLA_BRPORT_MODE,
148 QEMU_IFLA_BRPORT_GUARD,
149 QEMU_IFLA_BRPORT_PROTECT,
150 QEMU_IFLA_BRPORT_FAST_LEAVE,
151 QEMU_IFLA_BRPORT_LEARNING,
152 QEMU_IFLA_BRPORT_UNICAST_FLOOD,
153 QEMU_IFLA_BRPORT_PROXYARP,
154 QEMU_IFLA_BRPORT_LEARNING_SYNC,
155 QEMU_IFLA_BRPORT_PROXYARP_WIFI,
156 QEMU_IFLA_BRPORT_ROOT_ID,
157 QEMU_IFLA_BRPORT_BRIDGE_ID,
158 QEMU_IFLA_BRPORT_DESIGNATED_PORT,
159 QEMU_IFLA_BRPORT_DESIGNATED_COST,
162 QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
163 QEMU_IFLA_BRPORT_CONFIG_PENDING,
164 QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER,
165 QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER,
166 QEMU_IFLA_BRPORT_HOLD_TIMER,
167 QEMU_IFLA_BRPORT_FLUSH,
168 QEMU_IFLA_BRPORT_MULTICAST_ROUTER,
169 QEMU_IFLA_BRPORT_PAD,
170 QEMU_IFLA_BRPORT_MCAST_FLOOD,
171 QEMU_IFLA_BRPORT_MCAST_TO_UCAST,
172 QEMU_IFLA_BRPORT_VLAN_TUNNEL,
173 QEMU_IFLA_BRPORT_BCAST_FLOOD,
174 QEMU_IFLA_BRPORT_GROUP_FWD_MASK,
175 QEMU_IFLA_BRPORT_NEIGH_SUPPRESS,
176 QEMU_IFLA_BRPORT_ISOLATED,
177 QEMU_IFLA_BRPORT_BACKUP_PORT,
178 QEMU_IFLA_BRPORT_MRP_RING_OPEN,
179 QEMU_IFLA_BRPORT_MRP_IN_OPEN,
180 QEMU___IFLA_BRPORT_MAX
184 QEMU_IFLA_TUN_UNSPEC,
189 QEMU_IFLA_TUN_VNET_HDR,
190 QEMU_IFLA_TUN_PERSIST,
191 QEMU_IFLA_TUN_MULTI_QUEUE,
192 QEMU_IFLA_TUN_NUM_QUEUES,
193 QEMU_IFLA_TUN_NUM_DISABLED_QUEUES,
198 QEMU_IFLA_INFO_UNSPEC,
201 QEMU_IFLA_INFO_XSTATS,
202 QEMU_IFLA_INFO_SLAVE_KIND,
203 QEMU_IFLA_INFO_SLAVE_DATA,
204 QEMU___IFLA_INFO_MAX,
208 QEMU_IFLA_INET_UNSPEC,
210 QEMU___IFLA_INET_MAX,
214 QEMU_IFLA_INET6_UNSPEC,
215 QEMU_IFLA_INET6_FLAGS,
216 QEMU_IFLA_INET6_CONF,
217 QEMU_IFLA_INET6_STATS,
218 QEMU_IFLA_INET6_MCAST,
219 QEMU_IFLA_INET6_CACHEINFO,
220 QEMU_IFLA_INET6_ICMP6STATS,
221 QEMU_IFLA_INET6_TOKEN,
222 QEMU_IFLA_INET6_ADDR_GEN_MODE,
223 QEMU___IFLA_INET6_MAX
227 QEMU_IFLA_XDP_UNSPEC,
229 QEMU_IFLA_XDP_ATTACHED,
231 QEMU_IFLA_XDP_PROG_ID,
246 QEMU_RTA_PROTOINFO, /* no longer used */
249 QEMU_RTA_SESSION, /* no longer used */
250 QEMU_RTA_MP_ALGO, /* no longer used */
262 QEMU_RTA_TTL_PROPAGATE,
269 TargetFdTrans **target_fd_trans;
270 QemuMutex target_fd_trans_lock;
271 unsigned int target_fd_max;
273 static void tswap_nlmsghdr(struct nlmsghdr *nlh)
275 nlh->nlmsg_len = tswap32(nlh->nlmsg_len);
276 nlh->nlmsg_type = tswap16(nlh->nlmsg_type);
277 nlh->nlmsg_flags = tswap16(nlh->nlmsg_flags);
278 nlh->nlmsg_seq = tswap32(nlh->nlmsg_seq);
279 nlh->nlmsg_pid = tswap32(nlh->nlmsg_pid);
282 static abi_long host_to_target_for_each_nlmsg(struct nlmsghdr *nlh,
284 abi_long (*host_to_target_nlmsg)
288 uint32_t aligned_nlmsg_len;
291 while (len > sizeof(struct nlmsghdr)) {
293 nlmsg_len = nlh->nlmsg_len;
294 if (nlmsg_len < sizeof(struct nlmsghdr) ||
299 switch (nlh->nlmsg_type) {
307 struct nlmsgerr *e = NLMSG_DATA(nlh);
308 e->error = tswap32(e->error);
309 tswap_nlmsghdr(&e->msg);
314 ret = host_to_target_nlmsg(nlh);
323 aligned_nlmsg_len = NLMSG_ALIGN(nlmsg_len);
324 if (aligned_nlmsg_len >= len) {
327 len -= aligned_nlmsg_len;
328 nlh = (struct nlmsghdr *)(((char*)nlh) + aligned_nlmsg_len);
333 static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh,
335 abi_long (*target_to_host_nlmsg)
338 uint32_t aligned_nlmsg_len;
341 while (len > sizeof(struct nlmsghdr)) {
342 if (tswap32(nlh->nlmsg_len) < sizeof(struct nlmsghdr) ||
343 tswap32(nlh->nlmsg_len) > len) {
347 switch (nlh->nlmsg_type) {
354 struct nlmsgerr *e = NLMSG_DATA(nlh);
355 e->error = tswap32(e->error);
356 tswap_nlmsghdr(&e->msg);
360 ret = target_to_host_nlmsg(nlh);
366 aligned_nlmsg_len = NLMSG_ALIGN(nlh->nlmsg_len);
367 if (aligned_nlmsg_len >= len) {
370 len -= aligned_nlmsg_len;
371 nlh = (struct nlmsghdr *)(((char *)nlh) + aligned_nlmsg_len);
376 #ifdef CONFIG_RTNETLINK
377 static abi_long host_to_target_for_each_nlattr(struct nlattr *nlattr,
378 size_t len, void *context,
379 abi_long (*host_to_target_nlattr)
383 unsigned short nla_len;
384 unsigned short aligned_nla_len;
387 while (len > sizeof(struct nlattr)) {
388 nla_len = nlattr->nla_len;
389 if (nla_len < sizeof(struct nlattr) ||
393 ret = host_to_target_nlattr(nlattr, context);
394 nlattr->nla_len = tswap16(nlattr->nla_len);
395 nlattr->nla_type = tswap16(nlattr->nla_type);
400 aligned_nla_len = NLA_ALIGN(nla_len);
401 if (aligned_nla_len >= len) {
404 len -= aligned_nla_len;
405 nlattr = (struct nlattr *)(((char *)nlattr) + aligned_nla_len);
410 static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr,
412 abi_long (*host_to_target_rtattr)
415 unsigned short rta_len;
416 unsigned short aligned_rta_len;
419 while (len > sizeof(struct rtattr)) {
420 rta_len = rtattr->rta_len;
421 if (rta_len < sizeof(struct rtattr) ||
425 ret = host_to_target_rtattr(rtattr);
426 rtattr->rta_len = tswap16(rtattr->rta_len);
427 rtattr->rta_type = tswap16(rtattr->rta_type);
432 aligned_rta_len = RTA_ALIGN(rta_len);
433 if (aligned_rta_len >= len) {
436 len -= aligned_rta_len;
437 rtattr = (struct rtattr *)(((char *)rtattr) + aligned_rta_len);
442 #define NLA_DATA(nla) ((void *)((char *)(nla)) + NLA_HDRLEN)
444 static abi_long host_to_target_data_bridge_nlattr(struct nlattr *nlattr,
451 switch (nlattr->nla_type) {
453 case QEMU_IFLA_BR_FDB_FLUSH:
456 case QEMU_IFLA_BR_GROUP_ADDR:
459 case QEMU_IFLA_BR_VLAN_FILTERING:
460 case QEMU_IFLA_BR_TOPOLOGY_CHANGE:
461 case QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED:
462 case QEMU_IFLA_BR_MCAST_ROUTER:
463 case QEMU_IFLA_BR_MCAST_SNOOPING:
464 case QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR:
465 case QEMU_IFLA_BR_MCAST_QUERIER:
466 case QEMU_IFLA_BR_NF_CALL_IPTABLES:
467 case QEMU_IFLA_BR_NF_CALL_IP6TABLES:
468 case QEMU_IFLA_BR_NF_CALL_ARPTABLES:
469 case QEMU_IFLA_BR_VLAN_STATS_ENABLED:
470 case QEMU_IFLA_BR_MCAST_STATS_ENABLED:
471 case QEMU_IFLA_BR_MCAST_IGMP_VERSION:
472 case QEMU_IFLA_BR_MCAST_MLD_VERSION:
473 case QEMU_IFLA_BR_VLAN_STATS_PER_PORT:
476 case QEMU_IFLA_BR_PRIORITY:
477 case QEMU_IFLA_BR_VLAN_PROTOCOL:
478 case QEMU_IFLA_BR_GROUP_FWD_MASK:
479 case QEMU_IFLA_BR_ROOT_PORT:
480 case QEMU_IFLA_BR_VLAN_DEFAULT_PVID:
481 u16 = NLA_DATA(nlattr);
482 *u16 = tswap16(*u16);
485 case QEMU_IFLA_BR_FORWARD_DELAY:
486 case QEMU_IFLA_BR_HELLO_TIME:
487 case QEMU_IFLA_BR_MAX_AGE:
488 case QEMU_IFLA_BR_AGEING_TIME:
489 case QEMU_IFLA_BR_STP_STATE:
490 case QEMU_IFLA_BR_ROOT_PATH_COST:
491 case QEMU_IFLA_BR_MCAST_HASH_ELASTICITY:
492 case QEMU_IFLA_BR_MCAST_HASH_MAX:
493 case QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT:
494 case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT:
495 u32 = NLA_DATA(nlattr);
496 *u32 = tswap32(*u32);
499 case QEMU_IFLA_BR_HELLO_TIMER:
500 case QEMU_IFLA_BR_TCN_TIMER:
501 case QEMU_IFLA_BR_GC_TIMER:
502 case QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER:
503 case QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL:
504 case QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL:
505 case QEMU_IFLA_BR_MCAST_QUERIER_INTVL:
506 case QEMU_IFLA_BR_MCAST_QUERY_INTVL:
507 case QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL:
508 case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL:
509 u64 = NLA_DATA(nlattr);
510 *u64 = tswap64(*u64);
512 /* ifla_bridge_id: uin8_t[] */
513 case QEMU_IFLA_BR_ROOT_ID:
514 case QEMU_IFLA_BR_BRIDGE_ID:
516 /* br_boolopt_multi { uint32_t, uint32_t } */
517 case QEMU_IFLA_BR_MULTI_BOOLOPT:
518 u32 = NLA_DATA(nlattr);
519 u32[0] = tswap32(u32[0]); /* optval */
520 u32[1] = tswap32(u32[1]); /* optmask */
523 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_BR type %d\n",
530 static abi_long host_to_target_slave_data_bridge_nlattr(struct nlattr *nlattr,
537 switch (nlattr->nla_type) {
539 case QEMU_IFLA_BRPORT_STATE:
540 case QEMU_IFLA_BRPORT_MODE:
541 case QEMU_IFLA_BRPORT_GUARD:
542 case QEMU_IFLA_BRPORT_PROTECT:
543 case QEMU_IFLA_BRPORT_FAST_LEAVE:
544 case QEMU_IFLA_BRPORT_LEARNING:
545 case QEMU_IFLA_BRPORT_UNICAST_FLOOD:
546 case QEMU_IFLA_BRPORT_PROXYARP:
547 case QEMU_IFLA_BRPORT_LEARNING_SYNC:
548 case QEMU_IFLA_BRPORT_PROXYARP_WIFI:
549 case QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK:
550 case QEMU_IFLA_BRPORT_CONFIG_PENDING:
551 case QEMU_IFLA_BRPORT_MULTICAST_ROUTER:
552 case QEMU_IFLA_BRPORT_MCAST_FLOOD:
553 case QEMU_IFLA_BRPORT_MCAST_TO_UCAST:
554 case QEMU_IFLA_BRPORT_VLAN_TUNNEL:
555 case QEMU_IFLA_BRPORT_BCAST_FLOOD:
556 case QEMU_IFLA_BRPORT_NEIGH_SUPPRESS:
557 case QEMU_IFLA_BRPORT_ISOLATED:
558 case QEMU_IFLA_BRPORT_MRP_RING_OPEN:
559 case QEMU_IFLA_BRPORT_MRP_IN_OPEN:
562 case QEMU_IFLA_BRPORT_PRIORITY:
563 case QEMU_IFLA_BRPORT_DESIGNATED_PORT:
564 case QEMU_IFLA_BRPORT_DESIGNATED_COST:
565 case QEMU_IFLA_BRPORT_ID:
566 case QEMU_IFLA_BRPORT_NO:
567 case QEMU_IFLA_BRPORT_GROUP_FWD_MASK:
568 u16 = NLA_DATA(nlattr);
569 *u16 = tswap16(*u16);
572 case QEMU_IFLA_BRPORT_COST:
573 case QEMU_IFLA_BRPORT_BACKUP_PORT:
574 u32 = NLA_DATA(nlattr);
575 *u32 = tswap32(*u32);
578 case QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER:
579 case QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER:
580 case QEMU_IFLA_BRPORT_HOLD_TIMER:
581 u64 = NLA_DATA(nlattr);
582 *u64 = tswap64(*u64);
584 /* ifla_bridge_id: uint8_t[] */
585 case QEMU_IFLA_BRPORT_ROOT_ID:
586 case QEMU_IFLA_BRPORT_BRIDGE_ID:
589 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_BRPORT type %d\n",
596 static abi_long host_to_target_data_tun_nlattr(struct nlattr *nlattr,
601 switch (nlattr->nla_type) {
603 case QEMU_IFLA_TUN_TYPE:
604 case QEMU_IFLA_TUN_PI:
605 case QEMU_IFLA_TUN_VNET_HDR:
606 case QEMU_IFLA_TUN_PERSIST:
607 case QEMU_IFLA_TUN_MULTI_QUEUE:
610 case QEMU_IFLA_TUN_NUM_QUEUES:
611 case QEMU_IFLA_TUN_NUM_DISABLED_QUEUES:
612 case QEMU_IFLA_TUN_OWNER:
613 case QEMU_IFLA_TUN_GROUP:
614 u32 = NLA_DATA(nlattr);
615 *u32 = tswap32(*u32);
618 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_TUN type %d\n",
625 struct linkinfo_context {
632 static abi_long host_to_target_data_linkinfo_nlattr(struct nlattr *nlattr,
635 struct linkinfo_context *li_context = context;
637 switch (nlattr->nla_type) {
639 case QEMU_IFLA_INFO_KIND:
640 li_context->name = NLA_DATA(nlattr);
641 li_context->len = nlattr->nla_len - NLA_HDRLEN;
643 case QEMU_IFLA_INFO_SLAVE_KIND:
644 li_context->slave_name = NLA_DATA(nlattr);
645 li_context->slave_len = nlattr->nla_len - NLA_HDRLEN;
648 case QEMU_IFLA_INFO_XSTATS:
649 /* FIXME: only used by CAN */
652 case QEMU_IFLA_INFO_DATA:
653 if (strncmp(li_context->name, "bridge",
654 li_context->len) == 0) {
655 return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
658 host_to_target_data_bridge_nlattr);
659 } else if (strncmp(li_context->name, "tun",
660 li_context->len) == 0) {
661 return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
664 host_to_target_data_tun_nlattr);
666 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_INFO_KIND %s\n",
670 case QEMU_IFLA_INFO_SLAVE_DATA:
671 if (strncmp(li_context->slave_name, "bridge",
672 li_context->slave_len) == 0) {
673 return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
676 host_to_target_slave_data_bridge_nlattr);
678 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_INFO_SLAVE_KIND %s\n",
679 li_context->slave_name);
683 qemu_log_mask(LOG_UNIMP, "Unknown host QEMU_IFLA_INFO type: %d\n",
691 static abi_long host_to_target_data_inet_nlattr(struct nlattr *nlattr,
697 switch (nlattr->nla_type) {
698 case QEMU_IFLA_INET_CONF:
699 u32 = NLA_DATA(nlattr);
700 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
702 u32[i] = tswap32(u32[i]);
706 qemu_log_mask(LOG_UNIMP, "Unknown host AF_INET type: %d\n",
712 static abi_long host_to_target_data_inet6_nlattr(struct nlattr *nlattr,
717 struct ifla_cacheinfo *ci;
720 switch (nlattr->nla_type) {
722 case QEMU_IFLA_INET6_TOKEN:
725 case QEMU_IFLA_INET6_ADDR_GEN_MODE:
728 case QEMU_IFLA_INET6_FLAGS:
729 u32 = NLA_DATA(nlattr);
730 *u32 = tswap32(*u32);
733 case QEMU_IFLA_INET6_CONF:
734 u32 = NLA_DATA(nlattr);
735 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
737 u32[i] = tswap32(u32[i]);
741 case QEMU_IFLA_INET6_CACHEINFO:
742 ci = NLA_DATA(nlattr);
743 ci->max_reasm_len = tswap32(ci->max_reasm_len);
744 ci->tstamp = tswap32(ci->tstamp);
745 ci->reachable_time = tswap32(ci->reachable_time);
746 ci->retrans_time = tswap32(ci->retrans_time);
749 case QEMU_IFLA_INET6_STATS:
750 case QEMU_IFLA_INET6_ICMP6STATS:
751 u64 = NLA_DATA(nlattr);
752 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u64);
754 u64[i] = tswap64(u64[i]);
758 qemu_log_mask(LOG_UNIMP, "Unknown host AF_INET6 type: %d\n",
764 static abi_long host_to_target_data_spec_nlattr(struct nlattr *nlattr,
767 switch (nlattr->nla_type) {
769 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
771 host_to_target_data_inet_nlattr);
773 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
775 host_to_target_data_inet6_nlattr);
777 qemu_log_mask(LOG_UNIMP, "Unknown host AF_SPEC type: %d\n",
784 static abi_long host_to_target_data_xdp_nlattr(struct nlattr *nlattr,
789 switch (nlattr->nla_type) {
791 case QEMU_IFLA_XDP_ATTACHED:
794 case QEMU_IFLA_XDP_PROG_ID:
795 u32 = NLA_DATA(nlattr);
796 *u32 = tswap32(*u32);
800 LOG_UNIMP, "Unknown host XDP type: %d\n", nlattr->nla_type);
806 static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr)
809 struct rtnl_link_stats *st;
810 struct rtnl_link_stats64 *st64;
811 struct rtnl_link_ifmap *map;
812 struct linkinfo_context li_context;
814 switch (rtattr->rta_type) {
816 case QEMU_IFLA_ADDRESS:
817 case QEMU_IFLA_BROADCAST:
818 case QEMU_IFLA_PERM_ADDRESS:
820 case QEMU_IFLA_IFNAME:
821 case QEMU_IFLA_QDISC:
824 case QEMU_IFLA_OPERSTATE:
825 case QEMU_IFLA_LINKMODE:
826 case QEMU_IFLA_CARRIER:
827 case QEMU_IFLA_PROTO_DOWN:
832 case QEMU_IFLA_WEIGHT:
833 case QEMU_IFLA_TXQLEN:
834 case QEMU_IFLA_CARRIER_CHANGES:
835 case QEMU_IFLA_NUM_RX_QUEUES:
836 case QEMU_IFLA_NUM_TX_QUEUES:
837 case QEMU_IFLA_PROMISCUITY:
838 case QEMU_IFLA_EXT_MASK:
839 case QEMU_IFLA_LINK_NETNSID:
840 case QEMU_IFLA_GROUP:
841 case QEMU_IFLA_MASTER:
842 case QEMU_IFLA_NUM_VF:
843 case QEMU_IFLA_GSO_MAX_SEGS:
844 case QEMU_IFLA_GSO_MAX_SIZE:
845 case QEMU_IFLA_CARRIER_UP_COUNT:
846 case QEMU_IFLA_CARRIER_DOWN_COUNT:
847 case QEMU_IFLA_MIN_MTU:
848 case QEMU_IFLA_MAX_MTU:
849 u32 = RTA_DATA(rtattr);
850 *u32 = tswap32(*u32);
852 /* struct rtnl_link_stats */
853 case QEMU_IFLA_STATS:
854 st = RTA_DATA(rtattr);
855 st->rx_packets = tswap32(st->rx_packets);
856 st->tx_packets = tswap32(st->tx_packets);
857 st->rx_bytes = tswap32(st->rx_bytes);
858 st->tx_bytes = tswap32(st->tx_bytes);
859 st->rx_errors = tswap32(st->rx_errors);
860 st->tx_errors = tswap32(st->tx_errors);
861 st->rx_dropped = tswap32(st->rx_dropped);
862 st->tx_dropped = tswap32(st->tx_dropped);
863 st->multicast = tswap32(st->multicast);
864 st->collisions = tswap32(st->collisions);
866 /* detailed rx_errors: */
867 st->rx_length_errors = tswap32(st->rx_length_errors);
868 st->rx_over_errors = tswap32(st->rx_over_errors);
869 st->rx_crc_errors = tswap32(st->rx_crc_errors);
870 st->rx_frame_errors = tswap32(st->rx_frame_errors);
871 st->rx_fifo_errors = tswap32(st->rx_fifo_errors);
872 st->rx_missed_errors = tswap32(st->rx_missed_errors);
874 /* detailed tx_errors */
875 st->tx_aborted_errors = tswap32(st->tx_aborted_errors);
876 st->tx_carrier_errors = tswap32(st->tx_carrier_errors);
877 st->tx_fifo_errors = tswap32(st->tx_fifo_errors);
878 st->tx_heartbeat_errors = tswap32(st->tx_heartbeat_errors);
879 st->tx_window_errors = tswap32(st->tx_window_errors);
882 st->rx_compressed = tswap32(st->rx_compressed);
883 st->tx_compressed = tswap32(st->tx_compressed);
885 /* struct rtnl_link_stats64 */
886 case QEMU_IFLA_STATS64:
887 st64 = RTA_DATA(rtattr);
888 st64->rx_packets = tswap64(st64->rx_packets);
889 st64->tx_packets = tswap64(st64->tx_packets);
890 st64->rx_bytes = tswap64(st64->rx_bytes);
891 st64->tx_bytes = tswap64(st64->tx_bytes);
892 st64->rx_errors = tswap64(st64->rx_errors);
893 st64->tx_errors = tswap64(st64->tx_errors);
894 st64->rx_dropped = tswap64(st64->rx_dropped);
895 st64->tx_dropped = tswap64(st64->tx_dropped);
896 st64->multicast = tswap64(st64->multicast);
897 st64->collisions = tswap64(st64->collisions);
899 /* detailed rx_errors: */
900 st64->rx_length_errors = tswap64(st64->rx_length_errors);
901 st64->rx_over_errors = tswap64(st64->rx_over_errors);
902 st64->rx_crc_errors = tswap64(st64->rx_crc_errors);
903 st64->rx_frame_errors = tswap64(st64->rx_frame_errors);
904 st64->rx_fifo_errors = tswap64(st64->rx_fifo_errors);
905 st64->rx_missed_errors = tswap64(st64->rx_missed_errors);
907 /* detailed tx_errors */
908 st64->tx_aborted_errors = tswap64(st64->tx_aborted_errors);
909 st64->tx_carrier_errors = tswap64(st64->tx_carrier_errors);
910 st64->tx_fifo_errors = tswap64(st64->tx_fifo_errors);
911 st64->tx_heartbeat_errors = tswap64(st64->tx_heartbeat_errors);
912 st64->tx_window_errors = tswap64(st64->tx_window_errors);
915 st64->rx_compressed = tswap64(st64->rx_compressed);
916 st64->tx_compressed = tswap64(st64->tx_compressed);
918 /* struct rtnl_link_ifmap */
920 map = RTA_DATA(rtattr);
921 map->mem_start = tswap64(map->mem_start);
922 map->mem_end = tswap64(map->mem_end);
923 map->base_addr = tswap64(map->base_addr);
924 map->irq = tswap16(map->irq);
927 case QEMU_IFLA_LINKINFO:
928 memset(&li_context, 0, sizeof(li_context));
929 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
931 host_to_target_data_linkinfo_nlattr);
932 case QEMU_IFLA_AF_SPEC:
933 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
935 host_to_target_data_spec_nlattr);
937 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
939 host_to_target_data_xdp_nlattr);
941 qemu_log_mask(LOG_UNIMP, "Unknown host QEMU_IFLA type: %d\n",
948 static abi_long host_to_target_data_addr_rtattr(struct rtattr *rtattr)
951 struct ifa_cacheinfo *ci;
953 switch (rtattr->rta_type) {
954 /* binary: depends on family type */
964 u32 = RTA_DATA(rtattr);
965 *u32 = tswap32(*u32);
967 /* struct ifa_cacheinfo */
969 ci = RTA_DATA(rtattr);
970 ci->ifa_prefered = tswap32(ci->ifa_prefered);
971 ci->ifa_valid = tswap32(ci->ifa_valid);
972 ci->cstamp = tswap32(ci->cstamp);
973 ci->tstamp = tswap32(ci->tstamp);
977 LOG_UNIMP, "Unknown host IFA type: %d\n", rtattr->rta_type);
983 static abi_long host_to_target_data_route_rtattr(struct rtattr *rtattr)
986 struct rta_cacheinfo *ci;
988 switch (rtattr->rta_type) {
989 /* binary: depends on family type */
990 case QEMU_RTA_GATEWAY:
992 case QEMU_RTA_PREFSRC:
998 case QEMU_RTA_PRIORITY:
1001 u32 = RTA_DATA(rtattr);
1002 *u32 = tswap32(*u32);
1004 /* struct rta_cacheinfo */
1005 case QEMU_RTA_CACHEINFO:
1006 ci = RTA_DATA(rtattr);
1007 ci->rta_clntref = tswap32(ci->rta_clntref);
1008 ci->rta_lastuse = tswap32(ci->rta_lastuse);
1009 ci->rta_expires = tswap32(ci->rta_expires);
1010 ci->rta_error = tswap32(ci->rta_error);
1011 ci->rta_used = tswap32(ci->rta_used);
1012 #if defined(RTNETLINK_HAVE_PEERINFO)
1013 ci->rta_id = tswap32(ci->rta_id);
1014 ci->rta_ts = tswap32(ci->rta_ts);
1015 ci->rta_tsage = tswap32(ci->rta_tsage);
1020 LOG_UNIMP, "Unknown host RTA type: %d\n", rtattr->rta_type);
1026 static abi_long host_to_target_link_rtattr(struct rtattr *rtattr,
1027 uint32_t rtattr_len)
1029 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1030 host_to_target_data_link_rtattr);
1033 static abi_long host_to_target_addr_rtattr(struct rtattr *rtattr,
1034 uint32_t rtattr_len)
1036 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1037 host_to_target_data_addr_rtattr);
1040 static abi_long host_to_target_route_rtattr(struct rtattr *rtattr,
1041 uint32_t rtattr_len)
1043 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1044 host_to_target_data_route_rtattr);
1047 static abi_long host_to_target_data_route(struct nlmsghdr *nlh)
1050 struct ifinfomsg *ifi;
1051 struct ifaddrmsg *ifa;
1054 nlmsg_len = nlh->nlmsg_len;
1055 switch (nlh->nlmsg_type) {
1059 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
1060 ifi = NLMSG_DATA(nlh);
1061 ifi->ifi_type = tswap16(ifi->ifi_type);
1062 ifi->ifi_index = tswap32(ifi->ifi_index);
1063 ifi->ifi_flags = tswap32(ifi->ifi_flags);
1064 ifi->ifi_change = tswap32(ifi->ifi_change);
1065 host_to_target_link_rtattr(IFLA_RTA(ifi),
1066 nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
1072 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
1073 ifa = NLMSG_DATA(nlh);
1074 ifa->ifa_index = tswap32(ifa->ifa_index);
1075 host_to_target_addr_rtattr(IFA_RTA(ifa),
1076 nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1082 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
1083 rtm = NLMSG_DATA(nlh);
1084 rtm->rtm_flags = tswap32(rtm->rtm_flags);
1085 host_to_target_route_rtattr(RTM_RTA(rtm),
1086 nlmsg_len - NLMSG_LENGTH(sizeof(*rtm)));
1090 return -TARGET_EINVAL;
1095 static inline abi_long host_to_target_nlmsg_route(struct nlmsghdr *nlh,
1098 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_route);
1101 static abi_long target_to_host_for_each_rtattr(struct rtattr *rtattr,
1103 abi_long (*target_to_host_rtattr)
1106 unsigned short aligned_rta_len;
1109 while (len >= sizeof(struct rtattr)) {
1110 if (tswap16(rtattr->rta_len) < sizeof(struct rtattr) ||
1111 tswap16(rtattr->rta_len) > len) {
1114 rtattr->rta_len = tswap16(rtattr->rta_len);
1115 rtattr->rta_type = tswap16(rtattr->rta_type);
1116 ret = target_to_host_rtattr(rtattr);
1121 aligned_rta_len = RTA_ALIGN(rtattr->rta_len);
1122 if (aligned_rta_len >= len) {
1125 len -= aligned_rta_len;
1126 rtattr = (struct rtattr *)(((char *)rtattr) + aligned_rta_len);
1131 static abi_long target_to_host_data_link_rtattr(struct rtattr *rtattr)
1135 switch (rtattr->rta_type) {
1137 case QEMU_IFLA_EXT_MASK:
1138 u32 = RTA_DATA(rtattr);
1139 *u32 = tswap32(*u32);
1142 qemu_log_mask(LOG_UNIMP, "Unknown target QEMU_IFLA type: %d\n",
1149 static abi_long target_to_host_data_addr_rtattr(struct rtattr *rtattr)
1151 switch (rtattr->rta_type) {
1152 /* binary: depends on family type */
1157 qemu_log_mask(LOG_UNIMP, "Unknown target IFA type: %d\n",
1164 static abi_long target_to_host_data_route_rtattr(struct rtattr *rtattr)
1167 switch (rtattr->rta_type) {
1168 /* binary: depends on family type */
1171 case QEMU_RTA_GATEWAY:
1174 case QEMU_RTA_PRIORITY:
1175 case QEMU_RTA_TABLE:
1177 u32 = RTA_DATA(rtattr);
1178 *u32 = tswap32(*u32);
1181 qemu_log_mask(LOG_UNIMP, "Unknown target RTA type: %d\n",
1188 static void target_to_host_link_rtattr(struct rtattr *rtattr,
1189 uint32_t rtattr_len)
1191 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1192 target_to_host_data_link_rtattr);
1195 static void target_to_host_addr_rtattr(struct rtattr *rtattr,
1196 uint32_t rtattr_len)
1198 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1199 target_to_host_data_addr_rtattr);
1202 static void target_to_host_route_rtattr(struct rtattr *rtattr,
1203 uint32_t rtattr_len)
1205 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1206 target_to_host_data_route_rtattr);
1209 static abi_long target_to_host_data_route(struct nlmsghdr *nlh)
1211 struct ifinfomsg *ifi;
1212 struct ifaddrmsg *ifa;
1215 switch (nlh->nlmsg_type) {
1220 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
1221 ifi = NLMSG_DATA(nlh);
1222 ifi->ifi_type = tswap16(ifi->ifi_type);
1223 ifi->ifi_index = tswap32(ifi->ifi_index);
1224 ifi->ifi_flags = tswap32(ifi->ifi_flags);
1225 ifi->ifi_change = tswap32(ifi->ifi_change);
1226 target_to_host_link_rtattr(IFLA_RTA(ifi), nlh->nlmsg_len -
1227 NLMSG_LENGTH(sizeof(*ifi)));
1233 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
1234 ifa = NLMSG_DATA(nlh);
1235 ifa->ifa_index = tswap32(ifa->ifa_index);
1236 target_to_host_addr_rtattr(IFA_RTA(ifa), nlh->nlmsg_len -
1237 NLMSG_LENGTH(sizeof(*ifa)));
1243 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
1244 rtm = NLMSG_DATA(nlh);
1245 rtm->rtm_flags = tswap32(rtm->rtm_flags);
1246 target_to_host_route_rtattr(RTM_RTA(rtm), nlh->nlmsg_len -
1247 NLMSG_LENGTH(sizeof(*rtm)));
1251 return -TARGET_EOPNOTSUPP;
1256 static abi_long target_to_host_nlmsg_route(struct nlmsghdr *nlh, size_t len)
1258 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_route);
1260 #endif /* CONFIG_RTNETLINK */
1262 static abi_long host_to_target_data_audit(struct nlmsghdr *nlh)
1264 switch (nlh->nlmsg_type) {
1266 qemu_log_mask(LOG_UNIMP, "Unknown host audit message type %d\n",
1268 return -TARGET_EINVAL;
1273 static inline abi_long host_to_target_nlmsg_audit(struct nlmsghdr *nlh,
1276 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_audit);
1279 static abi_long target_to_host_data_audit(struct nlmsghdr *nlh)
1281 switch (nlh->nlmsg_type) {
1283 case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
1284 case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
1287 qemu_log_mask(LOG_UNIMP, "Unknown target audit message type %d\n",
1289 return -TARGET_EINVAL;
1295 static abi_long target_to_host_nlmsg_audit(struct nlmsghdr *nlh, size_t len)
1297 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_audit);
1300 static abi_long packet_target_to_host_sockaddr(void *host_addr,
1301 abi_ulong target_addr,
1304 struct sockaddr *addr = host_addr;
1305 struct target_sockaddr *target_saddr;
1307 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1308 if (!target_saddr) {
1309 return -TARGET_EFAULT;
1312 memcpy(addr, target_saddr, len);
1313 addr->sa_family = tswap16(target_saddr->sa_family);
1314 /* spkt_protocol is big-endian */
1316 unlock_user(target_saddr, target_addr, 0);
1320 TargetFdTrans target_packet_trans = {
1321 .target_to_host_addr = packet_target_to_host_sockaddr,
1324 #ifdef CONFIG_RTNETLINK
1325 static abi_long netlink_route_target_to_host(void *buf, size_t len)
1329 ret = target_to_host_nlmsg_route(buf, len);
1337 static abi_long netlink_route_host_to_target(void *buf, size_t len)
1341 ret = host_to_target_nlmsg_route(buf, len);
1349 TargetFdTrans target_netlink_route_trans = {
1350 .target_to_host_data = netlink_route_target_to_host,
1351 .host_to_target_data = netlink_route_host_to_target,
1353 #endif /* CONFIG_RTNETLINK */
1355 static abi_long netlink_audit_target_to_host(void *buf, size_t len)
1359 ret = target_to_host_nlmsg_audit(buf, len);
1367 static abi_long netlink_audit_host_to_target(void *buf, size_t len)
1371 ret = host_to_target_nlmsg_audit(buf, len);
1379 TargetFdTrans target_netlink_audit_trans = {
1380 .target_to_host_data = netlink_audit_target_to_host,
1381 .host_to_target_data = netlink_audit_host_to_target,
1384 /* signalfd siginfo conversion */
1387 host_to_target_signalfd_siginfo(struct signalfd_siginfo *tinfo,
1388 const struct signalfd_siginfo *info)
1390 int sig = host_to_target_signal(info->ssi_signo);
1392 /* linux/signalfd.h defines a ssi_addr_lsb
1393 * not defined in sys/signalfd.h but used by some kernels
1396 #ifdef BUS_MCEERR_AO
1397 if (tinfo->ssi_signo == SIGBUS &&
1398 (tinfo->ssi_code == BUS_MCEERR_AR ||
1399 tinfo->ssi_code == BUS_MCEERR_AO)) {
1400 uint16_t *ssi_addr_lsb = (uint16_t *)(&info->ssi_addr + 1);
1401 uint16_t *tssi_addr_lsb = (uint16_t *)(&tinfo->ssi_addr + 1);
1402 *tssi_addr_lsb = tswap16(*ssi_addr_lsb);
1406 tinfo->ssi_signo = tswap32(sig);
1407 tinfo->ssi_errno = tswap32(tinfo->ssi_errno);
1408 tinfo->ssi_code = tswap32(info->ssi_code);
1409 tinfo->ssi_pid = tswap32(info->ssi_pid);
1410 tinfo->ssi_uid = tswap32(info->ssi_uid);
1411 tinfo->ssi_fd = tswap32(info->ssi_fd);
1412 tinfo->ssi_tid = tswap32(info->ssi_tid);
1413 tinfo->ssi_band = tswap32(info->ssi_band);
1414 tinfo->ssi_overrun = tswap32(info->ssi_overrun);
1415 tinfo->ssi_trapno = tswap32(info->ssi_trapno);
1416 tinfo->ssi_status = tswap32(info->ssi_status);
1417 tinfo->ssi_int = tswap32(info->ssi_int);
1418 tinfo->ssi_ptr = tswap64(info->ssi_ptr);
1419 tinfo->ssi_utime = tswap64(info->ssi_utime);
1420 tinfo->ssi_stime = tswap64(info->ssi_stime);
1421 tinfo->ssi_addr = tswap64(info->ssi_addr);
1424 static abi_long host_to_target_data_signalfd(void *buf, size_t len)
1428 for (i = 0; i < len; i += sizeof(struct signalfd_siginfo)) {
1429 host_to_target_signalfd_siginfo(buf + i, buf + i);
1435 TargetFdTrans target_signalfd_trans = {
1436 .host_to_target_data = host_to_target_data_signalfd,
1439 static abi_long swap_data_eventfd(void *buf, size_t len)
1441 uint64_t *counter = buf;
1444 if (len < sizeof(uint64_t)) {
1448 for (i = 0; i < len; i += sizeof(uint64_t)) {
1449 *counter = tswap64(*counter);
1456 TargetFdTrans target_eventfd_trans = {
1457 .host_to_target_data = swap_data_eventfd,
1458 .target_to_host_data = swap_data_eventfd,
1461 #if (defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)) || \
1462 (defined(CONFIG_INOTIFY1) && defined(TARGET_NR_inotify_init1) && \
1463 defined(__NR_inotify_init1))
1464 static abi_long host_to_target_data_inotify(void *buf, size_t len)
1466 struct inotify_event *ev;
1470 for (i = 0; i < len; i += sizeof(struct inotify_event) + name_len) {
1471 ev = (struct inotify_event *)((char *)buf + i);
1474 ev->wd = tswap32(ev->wd);
1475 ev->mask = tswap32(ev->mask);
1476 ev->cookie = tswap32(ev->cookie);
1477 ev->len = tswap32(name_len);
1483 TargetFdTrans target_inotify_trans = {
1484 .host_to_target_data = host_to_target_data_inotify,