Merge tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier...
[qemu.git] / linux-user / fd-trans.c
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 "user-internals.h"
31 #include "fd-trans.h"
32 #include "signal-common.h"
33
34 enum {
35 QEMU_IFLA_BR_UNSPEC,
36 QEMU_IFLA_BR_FORWARD_DELAY,
37 QEMU_IFLA_BR_HELLO_TIME,
38 QEMU_IFLA_BR_MAX_AGE,
39 QEMU_IFLA_BR_AGEING_TIME,
40 QEMU_IFLA_BR_STP_STATE,
41 QEMU_IFLA_BR_PRIORITY,
42 QEMU_IFLA_BR_VLAN_FILTERING,
43 QEMU_IFLA_BR_VLAN_PROTOCOL,
44 QEMU_IFLA_BR_GROUP_FWD_MASK,
45 QEMU_IFLA_BR_ROOT_ID,
46 QEMU_IFLA_BR_BRIDGE_ID,
47 QEMU_IFLA_BR_ROOT_PORT,
48 QEMU_IFLA_BR_ROOT_PATH_COST,
49 QEMU_IFLA_BR_TOPOLOGY_CHANGE,
50 QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
51 QEMU_IFLA_BR_HELLO_TIMER,
52 QEMU_IFLA_BR_TCN_TIMER,
53 QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER,
54 QEMU_IFLA_BR_GC_TIMER,
55 QEMU_IFLA_BR_GROUP_ADDR,
56 QEMU_IFLA_BR_FDB_FLUSH,
57 QEMU_IFLA_BR_MCAST_ROUTER,
58 QEMU_IFLA_BR_MCAST_SNOOPING,
59 QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR,
60 QEMU_IFLA_BR_MCAST_QUERIER,
61 QEMU_IFLA_BR_MCAST_HASH_ELASTICITY,
62 QEMU_IFLA_BR_MCAST_HASH_MAX,
63 QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT,
64 QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT,
65 QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL,
66 QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL,
67 QEMU_IFLA_BR_MCAST_QUERIER_INTVL,
68 QEMU_IFLA_BR_MCAST_QUERY_INTVL,
69 QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL,
70 QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL,
71 QEMU_IFLA_BR_NF_CALL_IPTABLES,
72 QEMU_IFLA_BR_NF_CALL_IP6TABLES,
73 QEMU_IFLA_BR_NF_CALL_ARPTABLES,
74 QEMU_IFLA_BR_VLAN_DEFAULT_PVID,
75 QEMU_IFLA_BR_PAD,
76 QEMU_IFLA_BR_VLAN_STATS_ENABLED,
77 QEMU_IFLA_BR_MCAST_STATS_ENABLED,
78 QEMU_IFLA_BR_MCAST_IGMP_VERSION,
79 QEMU_IFLA_BR_MCAST_MLD_VERSION,
80 QEMU_IFLA_BR_VLAN_STATS_PER_PORT,
81 QEMU_IFLA_BR_MULTI_BOOLOPT,
82 QEMU___IFLA_BR_MAX,
83 };
84
85 enum {
86 QEMU_IFLA_UNSPEC,
87 QEMU_IFLA_ADDRESS,
88 QEMU_IFLA_BROADCAST,
89 QEMU_IFLA_IFNAME,
90 QEMU_IFLA_MTU,
91 QEMU_IFLA_LINK,
92 QEMU_IFLA_QDISC,
93 QEMU_IFLA_STATS,
94 QEMU_IFLA_COST,
95 QEMU_IFLA_PRIORITY,
96 QEMU_IFLA_MASTER,
97 QEMU_IFLA_WIRELESS,
98 QEMU_IFLA_PROTINFO,
99 QEMU_IFLA_TXQLEN,
100 QEMU_IFLA_MAP,
101 QEMU_IFLA_WEIGHT,
102 QEMU_IFLA_OPERSTATE,
103 QEMU_IFLA_LINKMODE,
104 QEMU_IFLA_LINKINFO,
105 QEMU_IFLA_NET_NS_PID,
106 QEMU_IFLA_IFALIAS,
107 QEMU_IFLA_NUM_VF,
108 QEMU_IFLA_VFINFO_LIST,
109 QEMU_IFLA_STATS64,
110 QEMU_IFLA_VF_PORTS,
111 QEMU_IFLA_PORT_SELF,
112 QEMU_IFLA_AF_SPEC,
113 QEMU_IFLA_GROUP,
114 QEMU_IFLA_NET_NS_FD,
115 QEMU_IFLA_EXT_MASK,
116 QEMU_IFLA_PROMISCUITY,
117 QEMU_IFLA_NUM_TX_QUEUES,
118 QEMU_IFLA_NUM_RX_QUEUES,
119 QEMU_IFLA_CARRIER,
120 QEMU_IFLA_PHYS_PORT_ID,
121 QEMU_IFLA_CARRIER_CHANGES,
122 QEMU_IFLA_PHYS_SWITCH_ID,
123 QEMU_IFLA_LINK_NETNSID,
124 QEMU_IFLA_PHYS_PORT_NAME,
125 QEMU_IFLA_PROTO_DOWN,
126 QEMU_IFLA_GSO_MAX_SEGS,
127 QEMU_IFLA_GSO_MAX_SIZE,
128 QEMU_IFLA_PAD,
129 QEMU_IFLA_XDP,
130 QEMU_IFLA_EVENT,
131 QEMU_IFLA_NEW_NETNSID,
132 QEMU_IFLA_IF_NETNSID,
133 QEMU_IFLA_CARRIER_UP_COUNT,
134 QEMU_IFLA_CARRIER_DOWN_COUNT,
135 QEMU_IFLA_NEW_IFINDEX,
136 QEMU_IFLA_MIN_MTU,
137 QEMU_IFLA_MAX_MTU,
138 QEMU_IFLA_PROP_LIST,
139 QEMU_IFLA_ALT_IFNAME,
140 QEMU_IFLA_PERM_ADDRESS,
141 QEMU_IFLA_PROTO_DOWN_REASON,
142 QEMU_IFLA_PARENT_DEV_NAME,
143 QEMU_IFLA_PARENT_DEV_BUS_NAME,
144 QEMU___IFLA_MAX
145 };
146
147 enum {
148 QEMU_IFLA_BRPORT_UNSPEC,
149 QEMU_IFLA_BRPORT_STATE,
150 QEMU_IFLA_BRPORT_PRIORITY,
151 QEMU_IFLA_BRPORT_COST,
152 QEMU_IFLA_BRPORT_MODE,
153 QEMU_IFLA_BRPORT_GUARD,
154 QEMU_IFLA_BRPORT_PROTECT,
155 QEMU_IFLA_BRPORT_FAST_LEAVE,
156 QEMU_IFLA_BRPORT_LEARNING,
157 QEMU_IFLA_BRPORT_UNICAST_FLOOD,
158 QEMU_IFLA_BRPORT_PROXYARP,
159 QEMU_IFLA_BRPORT_LEARNING_SYNC,
160 QEMU_IFLA_BRPORT_PROXYARP_WIFI,
161 QEMU_IFLA_BRPORT_ROOT_ID,
162 QEMU_IFLA_BRPORT_BRIDGE_ID,
163 QEMU_IFLA_BRPORT_DESIGNATED_PORT,
164 QEMU_IFLA_BRPORT_DESIGNATED_COST,
165 QEMU_IFLA_BRPORT_ID,
166 QEMU_IFLA_BRPORT_NO,
167 QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
168 QEMU_IFLA_BRPORT_CONFIG_PENDING,
169 QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER,
170 QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER,
171 QEMU_IFLA_BRPORT_HOLD_TIMER,
172 QEMU_IFLA_BRPORT_FLUSH,
173 QEMU_IFLA_BRPORT_MULTICAST_ROUTER,
174 QEMU_IFLA_BRPORT_PAD,
175 QEMU_IFLA_BRPORT_MCAST_FLOOD,
176 QEMU_IFLA_BRPORT_MCAST_TO_UCAST,
177 QEMU_IFLA_BRPORT_VLAN_TUNNEL,
178 QEMU_IFLA_BRPORT_BCAST_FLOOD,
179 QEMU_IFLA_BRPORT_GROUP_FWD_MASK,
180 QEMU_IFLA_BRPORT_NEIGH_SUPPRESS,
181 QEMU_IFLA_BRPORT_ISOLATED,
182 QEMU_IFLA_BRPORT_BACKUP_PORT,
183 QEMU_IFLA_BRPORT_MRP_RING_OPEN,
184 QEMU_IFLA_BRPORT_MRP_IN_OPEN,
185 QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT,
186 QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_CNT,
187 QEMU___IFLA_BRPORT_MAX
188 };
189
190 enum {
191 QEMU_IFLA_TUN_UNSPEC,
192 QEMU_IFLA_TUN_OWNER,
193 QEMU_IFLA_TUN_GROUP,
194 QEMU_IFLA_TUN_TYPE,
195 QEMU_IFLA_TUN_PI,
196 QEMU_IFLA_TUN_VNET_HDR,
197 QEMU_IFLA_TUN_PERSIST,
198 QEMU_IFLA_TUN_MULTI_QUEUE,
199 QEMU_IFLA_TUN_NUM_QUEUES,
200 QEMU_IFLA_TUN_NUM_DISABLED_QUEUES,
201 QEMU___IFLA_TUN_MAX,
202 };
203
204 enum {
205 QEMU_IFLA_INFO_UNSPEC,
206 QEMU_IFLA_INFO_KIND,
207 QEMU_IFLA_INFO_DATA,
208 QEMU_IFLA_INFO_XSTATS,
209 QEMU_IFLA_INFO_SLAVE_KIND,
210 QEMU_IFLA_INFO_SLAVE_DATA,
211 QEMU___IFLA_INFO_MAX,
212 };
213
214 enum {
215 QEMU_IFLA_INET_UNSPEC,
216 QEMU_IFLA_INET_CONF,
217 QEMU___IFLA_INET_MAX,
218 };
219
220 enum {
221 QEMU_IFLA_INET6_UNSPEC,
222 QEMU_IFLA_INET6_FLAGS,
223 QEMU_IFLA_INET6_CONF,
224 QEMU_IFLA_INET6_STATS,
225 QEMU_IFLA_INET6_MCAST,
226 QEMU_IFLA_INET6_CACHEINFO,
227 QEMU_IFLA_INET6_ICMP6STATS,
228 QEMU_IFLA_INET6_TOKEN,
229 QEMU_IFLA_INET6_ADDR_GEN_MODE,
230 QEMU___IFLA_INET6_MAX
231 };
232
233 enum {
234 QEMU_IFLA_XDP_UNSPEC,
235 QEMU_IFLA_XDP_FD,
236 QEMU_IFLA_XDP_ATTACHED,
237 QEMU_IFLA_XDP_FLAGS,
238 QEMU_IFLA_XDP_PROG_ID,
239 QEMU___IFLA_XDP_MAX,
240 };
241
242 enum {
243 QEMU_RTA_UNSPEC,
244 QEMU_RTA_DST,
245 QEMU_RTA_SRC,
246 QEMU_RTA_IIF,
247 QEMU_RTA_OIF,
248 QEMU_RTA_GATEWAY,
249 QEMU_RTA_PRIORITY,
250 QEMU_RTA_PREFSRC,
251 QEMU_RTA_METRICS,
252 QEMU_RTA_MULTIPATH,
253 QEMU_RTA_PROTOINFO, /* no longer used */
254 QEMU_RTA_FLOW,
255 QEMU_RTA_CACHEINFO,
256 QEMU_RTA_SESSION, /* no longer used */
257 QEMU_RTA_MP_ALGO, /* no longer used */
258 QEMU_RTA_TABLE,
259 QEMU_RTA_MARK,
260 QEMU_RTA_MFC_STATS,
261 QEMU_RTA_VIA,
262 QEMU_RTA_NEWDST,
263 QEMU_RTA_PREF,
264 QEMU_RTA_ENCAP_TYPE,
265 QEMU_RTA_ENCAP,
266 QEMU_RTA_EXPIRES,
267 QEMU_RTA_PAD,
268 QEMU_RTA_UID,
269 QEMU_RTA_TTL_PROPAGATE,
270 QEMU_RTA_IP_PROTO,
271 QEMU_RTA_SPORT,
272 QEMU_RTA_DPORT,
273 QEMU___RTA_MAX
274 };
275
276 enum {
277 QEMU_IFLA_VF_STATS_RX_PACKETS,
278 QEMU_IFLA_VF_STATS_TX_PACKETS,
279 QEMU_IFLA_VF_STATS_RX_BYTES,
280 QEMU_IFLA_VF_STATS_TX_BYTES,
281 QEMU_IFLA_VF_STATS_BROADCAST,
282 QEMU_IFLA_VF_STATS_MULTICAST,
283 QEMU_IFLA_VF_STATS_PAD,
284 QEMU_IFLA_VF_STATS_RX_DROPPED,
285 QEMU_IFLA_VF_STATS_TX_DROPPED,
286 QEMU__IFLA_VF_STATS_MAX,
287 };
288
289 enum {
290 QEMU_IFLA_VF_UNSPEC,
291 QEMU_IFLA_VF_MAC,
292 QEMU_IFLA_VF_VLAN,
293 QEMU_IFLA_VF_TX_RATE,
294 QEMU_IFLA_VF_SPOOFCHK,
295 QEMU_IFLA_VF_LINK_STATE,
296 QEMU_IFLA_VF_RATE,
297 QEMU_IFLA_VF_RSS_QUERY_EN,
298 QEMU_IFLA_VF_STATS,
299 QEMU_IFLA_VF_TRUST,
300 QEMU_IFLA_VF_IB_NODE_GUID,
301 QEMU_IFLA_VF_IB_PORT_GUID,
302 QEMU_IFLA_VF_VLAN_LIST,
303 QEMU_IFLA_VF_BROADCAST,
304 QEMU__IFLA_VF_MAX,
305 };
306
307 TargetFdTrans **target_fd_trans;
308 QemuMutex target_fd_trans_lock;
309 unsigned int target_fd_max;
310
311 static void tswap_nlmsghdr(struct nlmsghdr *nlh)
312 {
313 nlh->nlmsg_len = tswap32(nlh->nlmsg_len);
314 nlh->nlmsg_type = tswap16(nlh->nlmsg_type);
315 nlh->nlmsg_flags = tswap16(nlh->nlmsg_flags);
316 nlh->nlmsg_seq = tswap32(nlh->nlmsg_seq);
317 nlh->nlmsg_pid = tswap32(nlh->nlmsg_pid);
318 }
319
320 static abi_long host_to_target_for_each_nlmsg(struct nlmsghdr *nlh,
321 size_t len,
322 abi_long (*host_to_target_nlmsg)
323 (struct nlmsghdr *))
324 {
325 uint32_t nlmsg_len;
326 uint32_t aligned_nlmsg_len;
327 abi_long ret;
328
329 while (len > sizeof(struct nlmsghdr)) {
330
331 nlmsg_len = nlh->nlmsg_len;
332 if (nlmsg_len < sizeof(struct nlmsghdr) ||
333 nlmsg_len > len) {
334 break;
335 }
336
337 switch (nlh->nlmsg_type) {
338 case NLMSG_DONE:
339 tswap_nlmsghdr(nlh);
340 return 0;
341 case NLMSG_NOOP:
342 break;
343 case NLMSG_ERROR:
344 {
345 struct nlmsgerr *e = NLMSG_DATA(nlh);
346 e->error = tswap32(e->error);
347 tswap_nlmsghdr(&e->msg);
348 tswap_nlmsghdr(nlh);
349 return 0;
350 }
351 default:
352 ret = host_to_target_nlmsg(nlh);
353 if (ret < 0) {
354 tswap_nlmsghdr(nlh);
355 return ret;
356 }
357 break;
358 }
359 tswap_nlmsghdr(nlh);
360
361 aligned_nlmsg_len = NLMSG_ALIGN(nlmsg_len);
362 if (aligned_nlmsg_len >= len) {
363 break;
364 }
365 len -= aligned_nlmsg_len;
366 nlh = (struct nlmsghdr *)(((char*)nlh) + aligned_nlmsg_len);
367 }
368 return 0;
369 }
370
371 static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh,
372 size_t len,
373 abi_long (*target_to_host_nlmsg)
374 (struct nlmsghdr *))
375 {
376 uint32_t aligned_nlmsg_len;
377 int ret;
378
379 while (len > sizeof(struct nlmsghdr)) {
380 if (tswap32(nlh->nlmsg_len) < sizeof(struct nlmsghdr) ||
381 tswap32(nlh->nlmsg_len) > len) {
382 break;
383 }
384 tswap_nlmsghdr(nlh);
385 switch (nlh->nlmsg_type) {
386 case NLMSG_DONE:
387 return 0;
388 case NLMSG_NOOP:
389 break;
390 case NLMSG_ERROR:
391 {
392 struct nlmsgerr *e = NLMSG_DATA(nlh);
393 e->error = tswap32(e->error);
394 tswap_nlmsghdr(&e->msg);
395 return 0;
396 }
397 default:
398 ret = target_to_host_nlmsg(nlh);
399 if (ret < 0) {
400 return ret;
401 }
402 }
403
404 aligned_nlmsg_len = NLMSG_ALIGN(nlh->nlmsg_len);
405 if (aligned_nlmsg_len >= len) {
406 break;
407 }
408 len -= aligned_nlmsg_len;
409 nlh = (struct nlmsghdr *)(((char *)nlh) + aligned_nlmsg_len);
410 }
411 return 0;
412 }
413
414 #ifdef CONFIG_RTNETLINK
415 static abi_long host_to_target_for_each_nlattr(struct nlattr *nlattr,
416 size_t len, void *context,
417 abi_long (*host_to_target_nlattr)
418 (struct nlattr *,
419 void *context))
420 {
421 unsigned short nla_len;
422 unsigned short aligned_nla_len;
423 abi_long ret;
424
425 while (len > sizeof(struct nlattr)) {
426 nla_len = nlattr->nla_len;
427 if (nla_len < sizeof(struct nlattr) ||
428 nla_len > len) {
429 break;
430 }
431 ret = host_to_target_nlattr(nlattr, context);
432 nlattr->nla_len = tswap16(nlattr->nla_len);
433 nlattr->nla_type = tswap16(nlattr->nla_type);
434 if (ret < 0) {
435 return ret;
436 }
437
438 aligned_nla_len = NLA_ALIGN(nla_len);
439 if (aligned_nla_len >= len) {
440 break;
441 }
442 len -= aligned_nla_len;
443 nlattr = (struct nlattr *)(((char *)nlattr) + aligned_nla_len);
444 }
445 return 0;
446 }
447
448 static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr,
449 size_t len,
450 abi_long (*host_to_target_rtattr)
451 (struct rtattr *))
452 {
453 unsigned short rta_len;
454 unsigned short aligned_rta_len;
455 abi_long ret;
456
457 while (len > sizeof(struct rtattr)) {
458 rta_len = rtattr->rta_len;
459 if (rta_len < sizeof(struct rtattr) ||
460 rta_len > len) {
461 break;
462 }
463 ret = host_to_target_rtattr(rtattr);
464 rtattr->rta_len = tswap16(rtattr->rta_len);
465 rtattr->rta_type = tswap16(rtattr->rta_type);
466 if (ret < 0) {
467 return ret;
468 }
469
470 aligned_rta_len = RTA_ALIGN(rta_len);
471 if (aligned_rta_len >= len) {
472 break;
473 }
474 len -= aligned_rta_len;
475 rtattr = (struct rtattr *)(((char *)rtattr) + aligned_rta_len);
476 }
477 return 0;
478 }
479
480 #define NLA_DATA(nla) ((void *)((char *)(nla)) + NLA_HDRLEN)
481
482 static abi_long host_to_target_data_bridge_nlattr(struct nlattr *nlattr,
483 void *context)
484 {
485 uint16_t *u16;
486 uint32_t *u32;
487 uint64_t *u64;
488
489 switch (nlattr->nla_type) {
490 /* no data */
491 case QEMU_IFLA_BR_FDB_FLUSH:
492 break;
493 /* binary */
494 case QEMU_IFLA_BR_GROUP_ADDR:
495 break;
496 /* uint8_t */
497 case QEMU_IFLA_BR_VLAN_FILTERING:
498 case QEMU_IFLA_BR_TOPOLOGY_CHANGE:
499 case QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED:
500 case QEMU_IFLA_BR_MCAST_ROUTER:
501 case QEMU_IFLA_BR_MCAST_SNOOPING:
502 case QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR:
503 case QEMU_IFLA_BR_MCAST_QUERIER:
504 case QEMU_IFLA_BR_NF_CALL_IPTABLES:
505 case QEMU_IFLA_BR_NF_CALL_IP6TABLES:
506 case QEMU_IFLA_BR_NF_CALL_ARPTABLES:
507 case QEMU_IFLA_BR_VLAN_STATS_ENABLED:
508 case QEMU_IFLA_BR_MCAST_STATS_ENABLED:
509 case QEMU_IFLA_BR_MCAST_IGMP_VERSION:
510 case QEMU_IFLA_BR_MCAST_MLD_VERSION:
511 case QEMU_IFLA_BR_VLAN_STATS_PER_PORT:
512 break;
513 /* uint16_t */
514 case QEMU_IFLA_BR_PRIORITY:
515 case QEMU_IFLA_BR_VLAN_PROTOCOL:
516 case QEMU_IFLA_BR_GROUP_FWD_MASK:
517 case QEMU_IFLA_BR_ROOT_PORT:
518 case QEMU_IFLA_BR_VLAN_DEFAULT_PVID:
519 u16 = NLA_DATA(nlattr);
520 *u16 = tswap16(*u16);
521 break;
522 /* uint32_t */
523 case QEMU_IFLA_BR_FORWARD_DELAY:
524 case QEMU_IFLA_BR_HELLO_TIME:
525 case QEMU_IFLA_BR_MAX_AGE:
526 case QEMU_IFLA_BR_AGEING_TIME:
527 case QEMU_IFLA_BR_STP_STATE:
528 case QEMU_IFLA_BR_ROOT_PATH_COST:
529 case QEMU_IFLA_BR_MCAST_HASH_ELASTICITY:
530 case QEMU_IFLA_BR_MCAST_HASH_MAX:
531 case QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT:
532 case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT:
533 u32 = NLA_DATA(nlattr);
534 *u32 = tswap32(*u32);
535 break;
536 /* uint64_t */
537 case QEMU_IFLA_BR_HELLO_TIMER:
538 case QEMU_IFLA_BR_TCN_TIMER:
539 case QEMU_IFLA_BR_GC_TIMER:
540 case QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER:
541 case QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL:
542 case QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL:
543 case QEMU_IFLA_BR_MCAST_QUERIER_INTVL:
544 case QEMU_IFLA_BR_MCAST_QUERY_INTVL:
545 case QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL:
546 case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL:
547 u64 = NLA_DATA(nlattr);
548 *u64 = tswap64(*u64);
549 break;
550 /* ifla_bridge_id: uin8_t[] */
551 case QEMU_IFLA_BR_ROOT_ID:
552 case QEMU_IFLA_BR_BRIDGE_ID:
553 break;
554 /* br_boolopt_multi { uint32_t, uint32_t } */
555 case QEMU_IFLA_BR_MULTI_BOOLOPT:
556 u32 = NLA_DATA(nlattr);
557 u32[0] = tswap32(u32[0]); /* optval */
558 u32[1] = tswap32(u32[1]); /* optmask */
559 break;
560 default:
561 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_BR type %d\n",
562 nlattr->nla_type);
563 break;
564 }
565 return 0;
566 }
567
568 static abi_long host_to_target_slave_data_bridge_nlattr(struct nlattr *nlattr,
569 void *context)
570 {
571 uint16_t *u16;
572 uint32_t *u32;
573 uint64_t *u64;
574
575 switch (nlattr->nla_type) {
576 /* uint8_t */
577 case QEMU_IFLA_BRPORT_STATE:
578 case QEMU_IFLA_BRPORT_MODE:
579 case QEMU_IFLA_BRPORT_GUARD:
580 case QEMU_IFLA_BRPORT_PROTECT:
581 case QEMU_IFLA_BRPORT_FAST_LEAVE:
582 case QEMU_IFLA_BRPORT_LEARNING:
583 case QEMU_IFLA_BRPORT_UNICAST_FLOOD:
584 case QEMU_IFLA_BRPORT_PROXYARP:
585 case QEMU_IFLA_BRPORT_LEARNING_SYNC:
586 case QEMU_IFLA_BRPORT_PROXYARP_WIFI:
587 case QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK:
588 case QEMU_IFLA_BRPORT_CONFIG_PENDING:
589 case QEMU_IFLA_BRPORT_MULTICAST_ROUTER:
590 case QEMU_IFLA_BRPORT_MCAST_FLOOD:
591 case QEMU_IFLA_BRPORT_MCAST_TO_UCAST:
592 case QEMU_IFLA_BRPORT_VLAN_TUNNEL:
593 case QEMU_IFLA_BRPORT_BCAST_FLOOD:
594 case QEMU_IFLA_BRPORT_NEIGH_SUPPRESS:
595 case QEMU_IFLA_BRPORT_ISOLATED:
596 case QEMU_IFLA_BRPORT_MRP_RING_OPEN:
597 case QEMU_IFLA_BRPORT_MRP_IN_OPEN:
598 break;
599 /* uint16_t */
600 case QEMU_IFLA_BRPORT_PRIORITY:
601 case QEMU_IFLA_BRPORT_DESIGNATED_PORT:
602 case QEMU_IFLA_BRPORT_DESIGNATED_COST:
603 case QEMU_IFLA_BRPORT_ID:
604 case QEMU_IFLA_BRPORT_NO:
605 case QEMU_IFLA_BRPORT_GROUP_FWD_MASK:
606 u16 = NLA_DATA(nlattr);
607 *u16 = tswap16(*u16);
608 break;
609 /* uin32_t */
610 case QEMU_IFLA_BRPORT_COST:
611 case QEMU_IFLA_BRPORT_BACKUP_PORT:
612 case QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT:
613 case QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_CNT:
614 u32 = NLA_DATA(nlattr);
615 *u32 = tswap32(*u32);
616 break;
617 /* uint64_t */
618 case QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER:
619 case QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER:
620 case QEMU_IFLA_BRPORT_HOLD_TIMER:
621 u64 = NLA_DATA(nlattr);
622 *u64 = tswap64(*u64);
623 break;
624 /* ifla_bridge_id: uint8_t[] */
625 case QEMU_IFLA_BRPORT_ROOT_ID:
626 case QEMU_IFLA_BRPORT_BRIDGE_ID:
627 break;
628 default:
629 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_BRPORT type %d\n",
630 nlattr->nla_type);
631 break;
632 }
633 return 0;
634 }
635
636 static abi_long host_to_target_data_tun_nlattr(struct nlattr *nlattr,
637 void *context)
638 {
639 uint32_t *u32;
640
641 switch (nlattr->nla_type) {
642 /* uint8_t */
643 case QEMU_IFLA_TUN_TYPE:
644 case QEMU_IFLA_TUN_PI:
645 case QEMU_IFLA_TUN_VNET_HDR:
646 case QEMU_IFLA_TUN_PERSIST:
647 case QEMU_IFLA_TUN_MULTI_QUEUE:
648 break;
649 /* uint32_t */
650 case QEMU_IFLA_TUN_NUM_QUEUES:
651 case QEMU_IFLA_TUN_NUM_DISABLED_QUEUES:
652 case QEMU_IFLA_TUN_OWNER:
653 case QEMU_IFLA_TUN_GROUP:
654 u32 = NLA_DATA(nlattr);
655 *u32 = tswap32(*u32);
656 break;
657 default:
658 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_TUN type %d\n",
659 nlattr->nla_type);
660 break;
661 }
662 return 0;
663 }
664
665 struct linkinfo_context {
666 int len;
667 char *name;
668 int slave_len;
669 char *slave_name;
670 };
671
672 static abi_long host_to_target_data_linkinfo_nlattr(struct nlattr *nlattr,
673 void *context)
674 {
675 struct linkinfo_context *li_context = context;
676
677 switch (nlattr->nla_type) {
678 /* string */
679 case QEMU_IFLA_INFO_KIND:
680 li_context->name = NLA_DATA(nlattr);
681 li_context->len = nlattr->nla_len - NLA_HDRLEN;
682 break;
683 case QEMU_IFLA_INFO_SLAVE_KIND:
684 li_context->slave_name = NLA_DATA(nlattr);
685 li_context->slave_len = nlattr->nla_len - NLA_HDRLEN;
686 break;
687 /* stats */
688 case QEMU_IFLA_INFO_XSTATS:
689 /* FIXME: only used by CAN */
690 break;
691 /* nested */
692 case QEMU_IFLA_INFO_DATA:
693 if (strncmp(li_context->name, "bridge",
694 li_context->len) == 0) {
695 return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
696 nlattr->nla_len,
697 NULL,
698 host_to_target_data_bridge_nlattr);
699 } else if (strncmp(li_context->name, "tun",
700 li_context->len) == 0) {
701 return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
702 nlattr->nla_len,
703 NULL,
704 host_to_target_data_tun_nlattr);
705 } else {
706 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_INFO_KIND %s\n",
707 li_context->name);
708 }
709 break;
710 case QEMU_IFLA_INFO_SLAVE_DATA:
711 if (strncmp(li_context->slave_name, "bridge",
712 li_context->slave_len) == 0) {
713 return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
714 nlattr->nla_len,
715 NULL,
716 host_to_target_slave_data_bridge_nlattr);
717 } else {
718 qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_INFO_SLAVE_KIND %s\n",
719 li_context->slave_name);
720 }
721 break;
722 default:
723 qemu_log_mask(LOG_UNIMP, "Unknown host QEMU_IFLA_INFO type: %d\n",
724 nlattr->nla_type);
725 break;
726 }
727
728 return 0;
729 }
730
731 static abi_long host_to_target_data_inet_nlattr(struct nlattr *nlattr,
732 void *context)
733 {
734 uint32_t *u32;
735 int i;
736
737 switch (nlattr->nla_type) {
738 case QEMU_IFLA_INET_CONF:
739 u32 = NLA_DATA(nlattr);
740 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
741 i++) {
742 u32[i] = tswap32(u32[i]);
743 }
744 break;
745 default:
746 qemu_log_mask(LOG_UNIMP, "Unknown host AF_INET type: %d\n",
747 nlattr->nla_type);
748 }
749 return 0;
750 }
751
752 static abi_long host_to_target_data_inet6_nlattr(struct nlattr *nlattr,
753 void *context)
754 {
755 uint32_t *u32;
756 uint64_t *u64;
757 struct ifla_cacheinfo *ci;
758 int i;
759
760 switch (nlattr->nla_type) {
761 /* binaries */
762 case QEMU_IFLA_INET6_TOKEN:
763 break;
764 /* uint8_t */
765 case QEMU_IFLA_INET6_ADDR_GEN_MODE:
766 break;
767 /* uint32_t */
768 case QEMU_IFLA_INET6_FLAGS:
769 u32 = NLA_DATA(nlattr);
770 *u32 = tswap32(*u32);
771 break;
772 /* uint32_t[] */
773 case QEMU_IFLA_INET6_CONF:
774 u32 = NLA_DATA(nlattr);
775 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
776 i++) {
777 u32[i] = tswap32(u32[i]);
778 }
779 break;
780 /* ifla_cacheinfo */
781 case QEMU_IFLA_INET6_CACHEINFO:
782 ci = NLA_DATA(nlattr);
783 ci->max_reasm_len = tswap32(ci->max_reasm_len);
784 ci->tstamp = tswap32(ci->tstamp);
785 ci->reachable_time = tswap32(ci->reachable_time);
786 ci->retrans_time = tswap32(ci->retrans_time);
787 break;
788 /* uint64_t[] */
789 case QEMU_IFLA_INET6_STATS:
790 case QEMU_IFLA_INET6_ICMP6STATS:
791 u64 = NLA_DATA(nlattr);
792 for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u64);
793 i++) {
794 u64[i] = tswap64(u64[i]);
795 }
796 break;
797 default:
798 qemu_log_mask(LOG_UNIMP, "Unknown host AF_INET6 type: %d\n",
799 nlattr->nla_type);
800 }
801 return 0;
802 }
803
804 static abi_long host_to_target_data_spec_nlattr(struct nlattr *nlattr,
805 void *context)
806 {
807 switch (nlattr->nla_type) {
808 case AF_INET:
809 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
810 NULL,
811 host_to_target_data_inet_nlattr);
812 case AF_INET6:
813 return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
814 NULL,
815 host_to_target_data_inet6_nlattr);
816 default:
817 qemu_log_mask(LOG_UNIMP, "Unknown host AF_SPEC type: %d\n",
818 nlattr->nla_type);
819 break;
820 }
821 return 0;
822 }
823
824 static abi_long host_to_target_data_xdp_nlattr(struct nlattr *nlattr,
825 void *context)
826 {
827 uint32_t *u32;
828
829 switch (nlattr->nla_type) {
830 /* uint8_t */
831 case QEMU_IFLA_XDP_ATTACHED:
832 break;
833 /* uint32_t */
834 case QEMU_IFLA_XDP_PROG_ID:
835 u32 = NLA_DATA(nlattr);
836 *u32 = tswap32(*u32);
837 break;
838 default:
839 qemu_log_mask(
840 LOG_UNIMP, "Unknown host XDP type: %d\n", nlattr->nla_type);
841 break;
842 }
843 return 0;
844 }
845
846 static abi_long host_to_target_data_vlan_list_nlattr(struct nlattr *nlattr,
847 void *context)
848 {
849 struct ifla_vf_vlan_info *vlan_info;
850
851 switch (nlattr->nla_type) {
852 /* struct ifla_vf_vlan_info */
853 case IFLA_VF_VLAN_INFO:
854 vlan_info = NLA_DATA(nlattr);
855 vlan_info->vf = tswap32(vlan_info->vf);
856 vlan_info->vlan = tswap32(vlan_info->vlan);
857 vlan_info->qos = tswap32(vlan_info->qos);
858 break;
859 default:
860 qemu_log_mask(LOG_UNIMP, "Unknown host VLAN LIST type: %d\n",
861 nlattr->nla_type);
862 break;
863 }
864 return 0;
865 }
866
867 static abi_long host_to_target_data_vf_stats_nlattr(struct nlattr *nlattr,
868 void *context)
869 {
870 uint64_t *u64;
871
872 switch (nlattr->nla_type) {
873 /* uint64_t */
874 case QEMU_IFLA_VF_STATS_RX_PACKETS:
875 case QEMU_IFLA_VF_STATS_TX_PACKETS:
876 case QEMU_IFLA_VF_STATS_RX_BYTES:
877 case QEMU_IFLA_VF_STATS_TX_BYTES:
878 case QEMU_IFLA_VF_STATS_BROADCAST:
879 case QEMU_IFLA_VF_STATS_MULTICAST:
880 case QEMU_IFLA_VF_STATS_PAD:
881 case QEMU_IFLA_VF_STATS_RX_DROPPED:
882 case QEMU_IFLA_VF_STATS_TX_DROPPED:
883 u64 = NLA_DATA(nlattr);
884 *u64 = tswap64(*u64);
885 break;
886 default:
887 qemu_log_mask(LOG_UNIMP, "Unknown host VF STATS type: %d\n",
888 nlattr->nla_type);
889 break;
890 }
891 return 0;
892 }
893
894 static abi_long host_to_target_data_vfinfo_nlattr(struct nlattr *nlattr,
895 void *context)
896 {
897 struct ifla_vf_mac *mac;
898 struct ifla_vf_vlan *vlan;
899 struct ifla_vf_vlan_info *vlan_info;
900 struct ifla_vf_spoofchk *spoofchk;
901 struct ifla_vf_rate *rate;
902 struct ifla_vf_link_state *link_state;
903 struct ifla_vf_rss_query_en *rss_query_en;
904 struct ifla_vf_trust *trust;
905 struct ifla_vf_guid *guid;
906
907 switch (nlattr->nla_type) {
908 /* struct ifla_vf_mac */
909 case QEMU_IFLA_VF_MAC:
910 mac = NLA_DATA(nlattr);
911 mac->vf = tswap32(mac->vf);
912 break;
913 /* struct ifla_vf_broadcast */
914 case QEMU_IFLA_VF_BROADCAST:
915 break;
916 /* struct struct ifla_vf_vlan */
917 case QEMU_IFLA_VF_VLAN:
918 vlan = NLA_DATA(nlattr);
919 vlan->vf = tswap32(vlan->vf);
920 vlan->vlan = tswap32(vlan->vlan);
921 vlan->qos = tswap32(vlan->qos);
922 break;
923 /* struct ifla_vf_vlan_info */
924 case QEMU_IFLA_VF_TX_RATE:
925 vlan_info = NLA_DATA(nlattr);
926 vlan_info->vf = tswap32(vlan_info->vf);
927 vlan_info->vlan = tswap32(vlan_info->vlan);
928 vlan_info->qos = tswap32(vlan_info->qos);
929 break;
930 /* struct ifla_vf_spoofchk */
931 case QEMU_IFLA_VF_SPOOFCHK:
932 spoofchk = NLA_DATA(nlattr);
933 spoofchk->vf = tswap32(spoofchk->vf);
934 spoofchk->setting = tswap32(spoofchk->setting);
935 break;
936 /* struct ifla_vf_rate */
937 case QEMU_IFLA_VF_RATE:
938 rate = NLA_DATA(nlattr);
939 rate->vf = tswap32(rate->vf);
940 rate->min_tx_rate = tswap32(rate->min_tx_rate);
941 rate->max_tx_rate = tswap32(rate->max_tx_rate);
942 break;
943 /* struct ifla_vf_link_state */
944 case QEMU_IFLA_VF_LINK_STATE:
945 link_state = NLA_DATA(nlattr);
946 link_state->vf = tswap32(link_state->vf);
947 link_state->link_state = tswap32(link_state->link_state);
948 break;
949 /* struct ifla_vf_rss_query_en */
950 case QEMU_IFLA_VF_RSS_QUERY_EN:
951 rss_query_en = NLA_DATA(nlattr);
952 rss_query_en->vf = tswap32(rss_query_en->vf);
953 rss_query_en->setting = tswap32(rss_query_en->setting);
954 break;
955 /* struct ifla_vf_trust */
956 case QEMU_IFLA_VF_TRUST:
957 trust = NLA_DATA(nlattr);
958 trust->vf = tswap32(trust->vf);
959 trust->setting = tswap32(trust->setting);
960 break;
961 /* struct ifla_vf_guid */
962 case QEMU_IFLA_VF_IB_NODE_GUID:
963 case QEMU_IFLA_VF_IB_PORT_GUID:
964 guid = NLA_DATA(nlattr);
965 guid->vf = tswap32(guid->vf);
966 guid->guid = tswap32(guid->guid);
967 break;
968 /* nested */
969 case QEMU_IFLA_VF_VLAN_LIST:
970 return host_to_target_for_each_nlattr(RTA_DATA(nlattr), nlattr->nla_len,
971 NULL,
972 host_to_target_data_vlan_list_nlattr);
973 case QEMU_IFLA_VF_STATS:
974 return host_to_target_for_each_nlattr(RTA_DATA(nlattr), nlattr->nla_len,
975 NULL,
976 host_to_target_data_vf_stats_nlattr);
977 default:
978 qemu_log_mask(LOG_UNIMP, "Unknown host VFINFO type: %d\n",
979 nlattr->nla_type);
980 break;
981 }
982 return 0;
983 }
984
985 static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr)
986 {
987 uint32_t *u32;
988 struct rtnl_link_stats *st;
989 struct rtnl_link_stats64 *st64;
990 struct rtnl_link_ifmap *map;
991 struct linkinfo_context li_context;
992
993 switch (rtattr->rta_type) {
994 /* binary stream */
995 case QEMU_IFLA_ADDRESS:
996 case QEMU_IFLA_BROADCAST:
997 case QEMU_IFLA_PERM_ADDRESS:
998 case QEMU_IFLA_PHYS_PORT_ID:
999 /* string */
1000 case QEMU_IFLA_IFNAME:
1001 case QEMU_IFLA_QDISC:
1002 case QEMU_IFLA_PARENT_DEV_NAME:
1003 case QEMU_IFLA_PARENT_DEV_BUS_NAME:
1004 break;
1005 /* uin8_t */
1006 case QEMU_IFLA_OPERSTATE:
1007 case QEMU_IFLA_LINKMODE:
1008 case QEMU_IFLA_CARRIER:
1009 case QEMU_IFLA_PROTO_DOWN:
1010 break;
1011 /* uint32_t */
1012 case QEMU_IFLA_MTU:
1013 case QEMU_IFLA_LINK:
1014 case QEMU_IFLA_WEIGHT:
1015 case QEMU_IFLA_TXQLEN:
1016 case QEMU_IFLA_CARRIER_CHANGES:
1017 case QEMU_IFLA_NUM_RX_QUEUES:
1018 case QEMU_IFLA_NUM_TX_QUEUES:
1019 case QEMU_IFLA_PROMISCUITY:
1020 case QEMU_IFLA_EXT_MASK:
1021 case QEMU_IFLA_LINK_NETNSID:
1022 case QEMU_IFLA_GROUP:
1023 case QEMU_IFLA_MASTER:
1024 case QEMU_IFLA_NUM_VF:
1025 case QEMU_IFLA_GSO_MAX_SEGS:
1026 case QEMU_IFLA_GSO_MAX_SIZE:
1027 case QEMU_IFLA_CARRIER_UP_COUNT:
1028 case QEMU_IFLA_CARRIER_DOWN_COUNT:
1029 case QEMU_IFLA_MIN_MTU:
1030 case QEMU_IFLA_MAX_MTU:
1031 u32 = RTA_DATA(rtattr);
1032 *u32 = tswap32(*u32);
1033 break;
1034 /* struct rtnl_link_stats */
1035 case QEMU_IFLA_STATS:
1036 st = RTA_DATA(rtattr);
1037 st->rx_packets = tswap32(st->rx_packets);
1038 st->tx_packets = tswap32(st->tx_packets);
1039 st->rx_bytes = tswap32(st->rx_bytes);
1040 st->tx_bytes = tswap32(st->tx_bytes);
1041 st->rx_errors = tswap32(st->rx_errors);
1042 st->tx_errors = tswap32(st->tx_errors);
1043 st->rx_dropped = tswap32(st->rx_dropped);
1044 st->tx_dropped = tswap32(st->tx_dropped);
1045 st->multicast = tswap32(st->multicast);
1046 st->collisions = tswap32(st->collisions);
1047
1048 /* detailed rx_errors: */
1049 st->rx_length_errors = tswap32(st->rx_length_errors);
1050 st->rx_over_errors = tswap32(st->rx_over_errors);
1051 st->rx_crc_errors = tswap32(st->rx_crc_errors);
1052 st->rx_frame_errors = tswap32(st->rx_frame_errors);
1053 st->rx_fifo_errors = tswap32(st->rx_fifo_errors);
1054 st->rx_missed_errors = tswap32(st->rx_missed_errors);
1055
1056 /* detailed tx_errors */
1057 st->tx_aborted_errors = tswap32(st->tx_aborted_errors);
1058 st->tx_carrier_errors = tswap32(st->tx_carrier_errors);
1059 st->tx_fifo_errors = tswap32(st->tx_fifo_errors);
1060 st->tx_heartbeat_errors = tswap32(st->tx_heartbeat_errors);
1061 st->tx_window_errors = tswap32(st->tx_window_errors);
1062
1063 /* for cslip etc */
1064 st->rx_compressed = tswap32(st->rx_compressed);
1065 st->tx_compressed = tswap32(st->tx_compressed);
1066 break;
1067 /* struct rtnl_link_stats64 */
1068 case QEMU_IFLA_STATS64:
1069 st64 = RTA_DATA(rtattr);
1070 st64->rx_packets = tswap64(st64->rx_packets);
1071 st64->tx_packets = tswap64(st64->tx_packets);
1072 st64->rx_bytes = tswap64(st64->rx_bytes);
1073 st64->tx_bytes = tswap64(st64->tx_bytes);
1074 st64->rx_errors = tswap64(st64->rx_errors);
1075 st64->tx_errors = tswap64(st64->tx_errors);
1076 st64->rx_dropped = tswap64(st64->rx_dropped);
1077 st64->tx_dropped = tswap64(st64->tx_dropped);
1078 st64->multicast = tswap64(st64->multicast);
1079 st64->collisions = tswap64(st64->collisions);
1080
1081 /* detailed rx_errors: */
1082 st64->rx_length_errors = tswap64(st64->rx_length_errors);
1083 st64->rx_over_errors = tswap64(st64->rx_over_errors);
1084 st64->rx_crc_errors = tswap64(st64->rx_crc_errors);
1085 st64->rx_frame_errors = tswap64(st64->rx_frame_errors);
1086 st64->rx_fifo_errors = tswap64(st64->rx_fifo_errors);
1087 st64->rx_missed_errors = tswap64(st64->rx_missed_errors);
1088
1089 /* detailed tx_errors */
1090 st64->tx_aborted_errors = tswap64(st64->tx_aborted_errors);
1091 st64->tx_carrier_errors = tswap64(st64->tx_carrier_errors);
1092 st64->tx_fifo_errors = tswap64(st64->tx_fifo_errors);
1093 st64->tx_heartbeat_errors = tswap64(st64->tx_heartbeat_errors);
1094 st64->tx_window_errors = tswap64(st64->tx_window_errors);
1095
1096 /* for cslip etc */
1097 st64->rx_compressed = tswap64(st64->rx_compressed);
1098 st64->tx_compressed = tswap64(st64->tx_compressed);
1099 break;
1100 /* struct rtnl_link_ifmap */
1101 case QEMU_IFLA_MAP:
1102 map = RTA_DATA(rtattr);
1103 map->mem_start = tswap64(map->mem_start);
1104 map->mem_end = tswap64(map->mem_end);
1105 map->base_addr = tswap64(map->base_addr);
1106 map->irq = tswap16(map->irq);
1107 break;
1108 /* nested */
1109 case QEMU_IFLA_LINKINFO:
1110 memset(&li_context, 0, sizeof(li_context));
1111 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1112 &li_context,
1113 host_to_target_data_linkinfo_nlattr);
1114 case QEMU_IFLA_AF_SPEC:
1115 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1116 NULL,
1117 host_to_target_data_spec_nlattr);
1118 case QEMU_IFLA_XDP:
1119 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1120 NULL,
1121 host_to_target_data_xdp_nlattr);
1122 case QEMU_IFLA_VFINFO_LIST:
1123 return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1124 NULL,
1125 host_to_target_data_vfinfo_nlattr);
1126 default:
1127 qemu_log_mask(LOG_UNIMP, "Unknown host QEMU_IFLA type: %d\n",
1128 rtattr->rta_type);
1129 break;
1130 }
1131 return 0;
1132 }
1133
1134 static abi_long host_to_target_data_addr_rtattr(struct rtattr *rtattr)
1135 {
1136 uint32_t *u32;
1137 struct ifa_cacheinfo *ci;
1138
1139 switch (rtattr->rta_type) {
1140 /* binary: depends on family type */
1141 case IFA_ADDRESS:
1142 case IFA_LOCAL:
1143 break;
1144 /* string */
1145 case IFA_LABEL:
1146 break;
1147 /* u32 */
1148 case IFA_FLAGS:
1149 case IFA_BROADCAST:
1150 u32 = RTA_DATA(rtattr);
1151 *u32 = tswap32(*u32);
1152 break;
1153 /* struct ifa_cacheinfo */
1154 case IFA_CACHEINFO:
1155 ci = RTA_DATA(rtattr);
1156 ci->ifa_prefered = tswap32(ci->ifa_prefered);
1157 ci->ifa_valid = tswap32(ci->ifa_valid);
1158 ci->cstamp = tswap32(ci->cstamp);
1159 ci->tstamp = tswap32(ci->tstamp);
1160 break;
1161 default:
1162 qemu_log_mask(
1163 LOG_UNIMP, "Unknown host IFA type: %d\n", rtattr->rta_type);
1164 break;
1165 }
1166 return 0;
1167 }
1168
1169 static abi_long host_to_target_data_route_rtattr(struct rtattr *rtattr)
1170 {
1171 uint32_t *u32;
1172 struct rta_cacheinfo *ci;
1173
1174 switch (rtattr->rta_type) {
1175 /* binary: depends on family type */
1176 case QEMU_RTA_GATEWAY:
1177 case QEMU_RTA_DST:
1178 case QEMU_RTA_PREFSRC:
1179 break;
1180 /* u8 */
1181 case QEMU_RTA_PREF:
1182 break;
1183 /* u32 */
1184 case QEMU_RTA_PRIORITY:
1185 case QEMU_RTA_TABLE:
1186 case QEMU_RTA_OIF:
1187 u32 = RTA_DATA(rtattr);
1188 *u32 = tswap32(*u32);
1189 break;
1190 /* struct rta_cacheinfo */
1191 case QEMU_RTA_CACHEINFO:
1192 ci = RTA_DATA(rtattr);
1193 ci->rta_clntref = tswap32(ci->rta_clntref);
1194 ci->rta_lastuse = tswap32(ci->rta_lastuse);
1195 ci->rta_expires = tswap32(ci->rta_expires);
1196 ci->rta_error = tswap32(ci->rta_error);
1197 ci->rta_used = tswap32(ci->rta_used);
1198 #if defined(RTNETLINK_HAVE_PEERINFO)
1199 ci->rta_id = tswap32(ci->rta_id);
1200 ci->rta_ts = tswap32(ci->rta_ts);
1201 ci->rta_tsage = tswap32(ci->rta_tsage);
1202 #endif
1203 break;
1204 default:
1205 qemu_log_mask(
1206 LOG_UNIMP, "Unknown host RTA type: %d\n", rtattr->rta_type);
1207 break;
1208 }
1209 return 0;
1210 }
1211
1212 static abi_long host_to_target_link_rtattr(struct rtattr *rtattr,
1213 uint32_t rtattr_len)
1214 {
1215 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1216 host_to_target_data_link_rtattr);
1217 }
1218
1219 static abi_long host_to_target_addr_rtattr(struct rtattr *rtattr,
1220 uint32_t rtattr_len)
1221 {
1222 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1223 host_to_target_data_addr_rtattr);
1224 }
1225
1226 static abi_long host_to_target_route_rtattr(struct rtattr *rtattr,
1227 uint32_t rtattr_len)
1228 {
1229 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1230 host_to_target_data_route_rtattr);
1231 }
1232
1233 static abi_long host_to_target_data_route(struct nlmsghdr *nlh)
1234 {
1235 uint32_t nlmsg_len;
1236 struct ifinfomsg *ifi;
1237 struct ifaddrmsg *ifa;
1238 struct rtmsg *rtm;
1239
1240 nlmsg_len = nlh->nlmsg_len;
1241 switch (nlh->nlmsg_type) {
1242 case RTM_NEWLINK:
1243 case RTM_DELLINK:
1244 case RTM_GETLINK:
1245 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
1246 ifi = NLMSG_DATA(nlh);
1247 ifi->ifi_type = tswap16(ifi->ifi_type);
1248 ifi->ifi_index = tswap32(ifi->ifi_index);
1249 ifi->ifi_flags = tswap32(ifi->ifi_flags);
1250 ifi->ifi_change = tswap32(ifi->ifi_change);
1251 host_to_target_link_rtattr(IFLA_RTA(ifi),
1252 nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
1253 }
1254 break;
1255 case RTM_NEWADDR:
1256 case RTM_DELADDR:
1257 case RTM_GETADDR:
1258 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
1259 ifa = NLMSG_DATA(nlh);
1260 ifa->ifa_index = tswap32(ifa->ifa_index);
1261 host_to_target_addr_rtattr(IFA_RTA(ifa),
1262 nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1263 }
1264 break;
1265 case RTM_NEWROUTE:
1266 case RTM_DELROUTE:
1267 case RTM_GETROUTE:
1268 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
1269 rtm = NLMSG_DATA(nlh);
1270 rtm->rtm_flags = tswap32(rtm->rtm_flags);
1271 host_to_target_route_rtattr(RTM_RTA(rtm),
1272 nlmsg_len - NLMSG_LENGTH(sizeof(*rtm)));
1273 }
1274 break;
1275 default:
1276 return -TARGET_EINVAL;
1277 }
1278 return 0;
1279 }
1280
1281 static inline abi_long host_to_target_nlmsg_route(struct nlmsghdr *nlh,
1282 size_t len)
1283 {
1284 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_route);
1285 }
1286
1287 static abi_long target_to_host_for_each_rtattr(struct rtattr *rtattr,
1288 size_t len,
1289 abi_long (*target_to_host_rtattr)
1290 (struct rtattr *))
1291 {
1292 unsigned short aligned_rta_len;
1293 abi_long ret;
1294
1295 while (len >= sizeof(struct rtattr)) {
1296 if (tswap16(rtattr->rta_len) < sizeof(struct rtattr) ||
1297 tswap16(rtattr->rta_len) > len) {
1298 break;
1299 }
1300 rtattr->rta_len = tswap16(rtattr->rta_len);
1301 rtattr->rta_type = tswap16(rtattr->rta_type);
1302 ret = target_to_host_rtattr(rtattr);
1303 if (ret < 0) {
1304 return ret;
1305 }
1306
1307 aligned_rta_len = RTA_ALIGN(rtattr->rta_len);
1308 if (aligned_rta_len >= len) {
1309 break;
1310 }
1311 len -= aligned_rta_len;
1312 rtattr = (struct rtattr *)(((char *)rtattr) + aligned_rta_len);
1313 }
1314 return 0;
1315 }
1316
1317 static abi_long target_to_host_data_link_rtattr(struct rtattr *rtattr)
1318 {
1319 uint32_t *u32;
1320
1321 switch (rtattr->rta_type) {
1322 /* uint32_t */
1323 case QEMU_IFLA_EXT_MASK:
1324 u32 = RTA_DATA(rtattr);
1325 *u32 = tswap32(*u32);
1326 break;
1327 default:
1328 qemu_log_mask(LOG_UNIMP, "Unknown target QEMU_IFLA type: %d\n",
1329 rtattr->rta_type);
1330 break;
1331 }
1332 return 0;
1333 }
1334
1335 static abi_long target_to_host_data_addr_rtattr(struct rtattr *rtattr)
1336 {
1337 switch (rtattr->rta_type) {
1338 /* binary: depends on family type */
1339 case IFA_LOCAL:
1340 case IFA_ADDRESS:
1341 break;
1342 default:
1343 qemu_log_mask(LOG_UNIMP, "Unknown target IFA type: %d\n",
1344 rtattr->rta_type);
1345 break;
1346 }
1347 return 0;
1348 }
1349
1350 static abi_long target_to_host_data_route_rtattr(struct rtattr *rtattr)
1351 {
1352 uint32_t *u32;
1353 switch (rtattr->rta_type) {
1354 /* binary: depends on family type */
1355 case QEMU_RTA_DST:
1356 case QEMU_RTA_SRC:
1357 case QEMU_RTA_GATEWAY:
1358 break;
1359 /* u32 */
1360 case QEMU_RTA_PRIORITY:
1361 case QEMU_RTA_TABLE:
1362 case QEMU_RTA_OIF:
1363 u32 = RTA_DATA(rtattr);
1364 *u32 = tswap32(*u32);
1365 break;
1366 default:
1367 qemu_log_mask(LOG_UNIMP, "Unknown target RTA type: %d\n",
1368 rtattr->rta_type);
1369 break;
1370 }
1371 return 0;
1372 }
1373
1374 static void target_to_host_link_rtattr(struct rtattr *rtattr,
1375 uint32_t rtattr_len)
1376 {
1377 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1378 target_to_host_data_link_rtattr);
1379 }
1380
1381 static void target_to_host_addr_rtattr(struct rtattr *rtattr,
1382 uint32_t rtattr_len)
1383 {
1384 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1385 target_to_host_data_addr_rtattr);
1386 }
1387
1388 static void target_to_host_route_rtattr(struct rtattr *rtattr,
1389 uint32_t rtattr_len)
1390 {
1391 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1392 target_to_host_data_route_rtattr);
1393 }
1394
1395 static abi_long target_to_host_data_route(struct nlmsghdr *nlh)
1396 {
1397 struct ifinfomsg *ifi;
1398 struct ifaddrmsg *ifa;
1399 struct rtmsg *rtm;
1400
1401 switch (nlh->nlmsg_type) {
1402 case RTM_NEWLINK:
1403 case RTM_DELLINK:
1404 case RTM_SETLINK:
1405 case RTM_GETLINK:
1406 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
1407 ifi = NLMSG_DATA(nlh);
1408 ifi->ifi_type = tswap16(ifi->ifi_type);
1409 ifi->ifi_index = tswap32(ifi->ifi_index);
1410 ifi->ifi_flags = tswap32(ifi->ifi_flags);
1411 ifi->ifi_change = tswap32(ifi->ifi_change);
1412 target_to_host_link_rtattr(IFLA_RTA(ifi), nlh->nlmsg_len -
1413 NLMSG_LENGTH(sizeof(*ifi)));
1414 }
1415 break;
1416 case RTM_GETADDR:
1417 case RTM_NEWADDR:
1418 case RTM_DELADDR:
1419 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
1420 ifa = NLMSG_DATA(nlh);
1421 ifa->ifa_index = tswap32(ifa->ifa_index);
1422 target_to_host_addr_rtattr(IFA_RTA(ifa), nlh->nlmsg_len -
1423 NLMSG_LENGTH(sizeof(*ifa)));
1424 }
1425 break;
1426 case RTM_NEWROUTE:
1427 case RTM_DELROUTE:
1428 case RTM_GETROUTE:
1429 if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
1430 rtm = NLMSG_DATA(nlh);
1431 rtm->rtm_flags = tswap32(rtm->rtm_flags);
1432 target_to_host_route_rtattr(RTM_RTA(rtm), nlh->nlmsg_len -
1433 NLMSG_LENGTH(sizeof(*rtm)));
1434 }
1435 break;
1436 default:
1437 return -TARGET_EOPNOTSUPP;
1438 }
1439 return 0;
1440 }
1441
1442 static abi_long target_to_host_nlmsg_route(struct nlmsghdr *nlh, size_t len)
1443 {
1444 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_route);
1445 }
1446 #endif /* CONFIG_RTNETLINK */
1447
1448 static abi_long host_to_target_data_audit(struct nlmsghdr *nlh)
1449 {
1450 switch (nlh->nlmsg_type) {
1451 default:
1452 qemu_log_mask(LOG_UNIMP, "Unknown host audit message type %d\n",
1453 nlh->nlmsg_type);
1454 return -TARGET_EINVAL;
1455 }
1456 return 0;
1457 }
1458
1459 static inline abi_long host_to_target_nlmsg_audit(struct nlmsghdr *nlh,
1460 size_t len)
1461 {
1462 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_audit);
1463 }
1464
1465 static abi_long target_to_host_data_audit(struct nlmsghdr *nlh)
1466 {
1467 switch (nlh->nlmsg_type) {
1468 case AUDIT_USER:
1469 case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
1470 case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
1471 break;
1472 default:
1473 qemu_log_mask(LOG_UNIMP, "Unknown target audit message type %d\n",
1474 nlh->nlmsg_type);
1475 return -TARGET_EINVAL;
1476 }
1477
1478 return 0;
1479 }
1480
1481 static abi_long target_to_host_nlmsg_audit(struct nlmsghdr *nlh, size_t len)
1482 {
1483 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_audit);
1484 }
1485
1486 static abi_long packet_target_to_host_sockaddr(void *host_addr,
1487 abi_ulong target_addr,
1488 socklen_t len)
1489 {
1490 struct sockaddr *addr = host_addr;
1491 struct target_sockaddr *target_saddr;
1492
1493 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1494 if (!target_saddr) {
1495 return -TARGET_EFAULT;
1496 }
1497
1498 memcpy(addr, target_saddr, len);
1499 addr->sa_family = tswap16(target_saddr->sa_family);
1500 /* spkt_protocol is big-endian */
1501
1502 unlock_user(target_saddr, target_addr, 0);
1503 return 0;
1504 }
1505
1506 TargetFdTrans target_packet_trans = {
1507 .target_to_host_addr = packet_target_to_host_sockaddr,
1508 };
1509
1510 #ifdef CONFIG_RTNETLINK
1511 static abi_long netlink_route_target_to_host(void *buf, size_t len)
1512 {
1513 abi_long ret;
1514
1515 ret = target_to_host_nlmsg_route(buf, len);
1516 if (ret < 0) {
1517 return ret;
1518 }
1519
1520 return len;
1521 }
1522
1523 static abi_long netlink_route_host_to_target(void *buf, size_t len)
1524 {
1525 abi_long ret;
1526
1527 ret = host_to_target_nlmsg_route(buf, len);
1528 if (ret < 0) {
1529 return ret;
1530 }
1531
1532 return len;
1533 }
1534
1535 TargetFdTrans target_netlink_route_trans = {
1536 .target_to_host_data = netlink_route_target_to_host,
1537 .host_to_target_data = netlink_route_host_to_target,
1538 };
1539 #endif /* CONFIG_RTNETLINK */
1540
1541 static abi_long netlink_audit_target_to_host(void *buf, size_t len)
1542 {
1543 abi_long ret;
1544
1545 ret = target_to_host_nlmsg_audit(buf, len);
1546 if (ret < 0) {
1547 return ret;
1548 }
1549
1550 return len;
1551 }
1552
1553 static abi_long netlink_audit_host_to_target(void *buf, size_t len)
1554 {
1555 abi_long ret;
1556
1557 ret = host_to_target_nlmsg_audit(buf, len);
1558 if (ret < 0) {
1559 return ret;
1560 }
1561
1562 return len;
1563 }
1564
1565 TargetFdTrans target_netlink_audit_trans = {
1566 .target_to_host_data = netlink_audit_target_to_host,
1567 .host_to_target_data = netlink_audit_host_to_target,
1568 };
1569
1570 /* signalfd siginfo conversion */
1571
1572 static void
1573 host_to_target_signalfd_siginfo(struct signalfd_siginfo *tinfo,
1574 const struct signalfd_siginfo *info)
1575 {
1576 int sig = host_to_target_signal(info->ssi_signo);
1577
1578 /* linux/signalfd.h defines a ssi_addr_lsb
1579 * not defined in sys/signalfd.h but used by some kernels
1580 */
1581
1582 #ifdef BUS_MCEERR_AO
1583 if (tinfo->ssi_signo == SIGBUS &&
1584 (tinfo->ssi_code == BUS_MCEERR_AR ||
1585 tinfo->ssi_code == BUS_MCEERR_AO)) {
1586 uint16_t *ssi_addr_lsb = (uint16_t *)(&info->ssi_addr + 1);
1587 uint16_t *tssi_addr_lsb = (uint16_t *)(&tinfo->ssi_addr + 1);
1588 *tssi_addr_lsb = tswap16(*ssi_addr_lsb);
1589 }
1590 #endif
1591
1592 tinfo->ssi_signo = tswap32(sig);
1593 tinfo->ssi_errno = tswap32(tinfo->ssi_errno);
1594 tinfo->ssi_code = tswap32(info->ssi_code);
1595 tinfo->ssi_pid = tswap32(info->ssi_pid);
1596 tinfo->ssi_uid = tswap32(info->ssi_uid);
1597 tinfo->ssi_fd = tswap32(info->ssi_fd);
1598 tinfo->ssi_tid = tswap32(info->ssi_tid);
1599 tinfo->ssi_band = tswap32(info->ssi_band);
1600 tinfo->ssi_overrun = tswap32(info->ssi_overrun);
1601 tinfo->ssi_trapno = tswap32(info->ssi_trapno);
1602 tinfo->ssi_status = tswap32(info->ssi_status);
1603 tinfo->ssi_int = tswap32(info->ssi_int);
1604 tinfo->ssi_ptr = tswap64(info->ssi_ptr);
1605 tinfo->ssi_utime = tswap64(info->ssi_utime);
1606 tinfo->ssi_stime = tswap64(info->ssi_stime);
1607 tinfo->ssi_addr = tswap64(info->ssi_addr);
1608 }
1609
1610 static abi_long host_to_target_data_signalfd(void *buf, size_t len)
1611 {
1612 int i;
1613
1614 for (i = 0; i < len; i += sizeof(struct signalfd_siginfo)) {
1615 host_to_target_signalfd_siginfo(buf + i, buf + i);
1616 }
1617
1618 return len;
1619 }
1620
1621 TargetFdTrans target_signalfd_trans = {
1622 .host_to_target_data = host_to_target_data_signalfd,
1623 };
1624
1625 static abi_long swap_data_eventfd(void *buf, size_t len)
1626 {
1627 uint64_t *counter = buf;
1628 int i;
1629
1630 if (len < sizeof(uint64_t)) {
1631 return -EINVAL;
1632 }
1633
1634 for (i = 0; i < len; i += sizeof(uint64_t)) {
1635 *counter = tswap64(*counter);
1636 counter++;
1637 }
1638
1639 return len;
1640 }
1641
1642 TargetFdTrans target_eventfd_trans = {
1643 .host_to_target_data = swap_data_eventfd,
1644 .target_to_host_data = swap_data_eventfd,
1645 };
1646
1647 #if (defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)) || \
1648 (defined(CONFIG_INOTIFY1) && defined(TARGET_NR_inotify_init1) && \
1649 defined(__NR_inotify_init1))
1650 static abi_long host_to_target_data_inotify(void *buf, size_t len)
1651 {
1652 struct inotify_event *ev;
1653 int i;
1654 uint32_t name_len;
1655
1656 for (i = 0; i < len; i += sizeof(struct inotify_event) + name_len) {
1657 ev = (struct inotify_event *)((char *)buf + i);
1658 name_len = ev->len;
1659
1660 ev->wd = tswap32(ev->wd);
1661 ev->mask = tswap32(ev->mask);
1662 ev->cookie = tswap32(ev->cookie);
1663 ev->len = tswap32(name_len);
1664 }
1665
1666 return len;
1667 }
1668
1669 TargetFdTrans target_inotify_trans = {
1670 .host_to_target_data = host_to_target_data_inotify,
1671 };
1672 #endif