29 */
30
31/* XXX we use functions that might not exist. */
32#include "opt_compat.h"
33#include "opt_inet6.h"
34
35#ifndef COMPAT_43
36#error "Unable to compile Linux-emulator due to missing COMPAT_43 option!"
37#endif
38
39#include <sys/param.h>
40#include <sys/proc.h>
41#include <sys/systm.h>
42#include <sys/sysproto.h>
43#include <sys/fcntl.h>
44#include <sys/file.h>
45#include <sys/malloc.h>
46#include <sys/socket.h>
47#include <sys/socketvar.h>
48#include <sys/syscallsubr.h>
49#include <sys/uio.h>
50#include <sys/syslog.h>
51
52#include <netinet/in.h>
53#include <netinet/in_systm.h>
54#include <netinet/ip.h>
55#ifdef INET6
56#include <netinet/ip6.h>
57#include <netinet6/ip6_var.h>
58#endif
59
60#include <machine/../linux/linux.h>
61#include <machine/../linux/linux_proto.h>
62#include <compat/linux/linux_socket.h>
63#include <compat/linux/linux_util.h>
64
65#include <machine/limits.h>
66
67static int do_sa_get(struct sockaddr **, const struct osockaddr *, int *,
68 struct malloc_type *);
69static int linux_to_bsd_domain(int);
70
71/*
72 * Reads a linux sockaddr and does any necessary translation.
73 * Linux sockaddrs don't have a length field, only a family.
74 */
75static int
76linux_getsockaddr(struct sockaddr **sap, const struct osockaddr *osa, int len)
77{
78 int osalen = len;
79
80 return (do_sa_get(sap, osa, &osalen, M_SONAME));
81}
82
83/*
84 * Copy the osockaddr structure pointed to by osa to kernel, adjust
85 * family and convert to sockaddr.
86 */
87static int
88do_sa_get(struct sockaddr **sap, const struct osockaddr *osa, int *osalen,
89 struct malloc_type *mtype)
90{
91 int error=0, bdom;
92 struct sockaddr *sa;
93 struct osockaddr *kosa;
94 int alloclen;
95#ifdef INET6
96 int oldv6size;
97 struct sockaddr_in6 *sin6;
98#endif
99
100 if (*osalen < 2 || *osalen > UCHAR_MAX || !osa)
101 return (EINVAL);
102
103 alloclen = *osalen;
104#ifdef INET6
105 oldv6size = 0;
106 /*
107 * Check for old (pre-RFC2553) sockaddr_in6. We may accept it
108 * if it's a v4-mapped address, so reserve the proper space
109 * for it.
110 */
111 if (alloclen == sizeof (struct sockaddr_in6) - sizeof (u_int32_t)) {
112 alloclen = sizeof (struct sockaddr_in6);
113 oldv6size = 1;
114 }
115#endif
116
117 MALLOC(kosa, struct osockaddr *, alloclen, mtype, M_WAITOK);
118
119 if ((error = copyin(osa, kosa, *osalen)))
120 goto out;
121
122 bdom = linux_to_bsd_domain(kosa->sa_family);
123 if (bdom == -1) {
124 error = EINVAL;
125 goto out;
126 }
127
128#ifdef INET6
129 /*
130 * Older Linux IPv6 code uses obsolete RFC2133 struct sockaddr_in6,
131 * which lacks the scope id compared with RFC2553 one. If we detect
132 * the situation, reject the address and write a message to system log.
133 *
134 * Still accept addresses for which the scope id is not used.
135 */
136 if (oldv6size && bdom == AF_INET6) {
137 sin6 = (struct sockaddr_in6 *)kosa;
138 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) ||
139 (!IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) &&
140 !IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr) &&
141 !IN6_IS_ADDR_V4COMPAT(&sin6->sin6_addr) &&
142 !IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) &&
143 !IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))) {
144 sin6->sin6_scope_id = 0;
145 } else {
146 log(LOG_DEBUG,
147 "obsolete pre-RFC2553 sockaddr_in6 rejected");
148 error = EINVAL;
149 goto out;
150 }
151 } else
152#endif
153 if (bdom == AF_INET)
154 alloclen = sizeof(struct sockaddr_in);
155
156 sa = (struct sockaddr *) kosa;
157 sa->sa_family = bdom;
158 sa->sa_len = alloclen;
159
160 *sap = sa;
161 *osalen = alloclen;
162 return (0);
163
164out:
165 FREE(kosa, mtype);
166 return (error);
167}
168
169static int
170linux_to_bsd_domain(int domain)
171{
172
173 switch (domain) {
174 case LINUX_AF_UNSPEC:
175 return (AF_UNSPEC);
176 case LINUX_AF_UNIX:
177 return (AF_LOCAL);
178 case LINUX_AF_INET:
179 return (AF_INET);
180 case LINUX_AF_INET6:
181 return (AF_INET6);
182 case LINUX_AF_AX25:
183 return (AF_CCITT);
184 case LINUX_AF_IPX:
185 return (AF_IPX);
186 case LINUX_AF_APPLETALK:
187 return (AF_APPLETALK);
188 }
189 return (-1);
190}
191
192#ifndef __alpha__
193static int
194bsd_to_linux_domain(int domain)
195{
196
197 switch (domain) {
198 case AF_UNSPEC:
199 return (LINUX_AF_UNSPEC);
200 case AF_LOCAL:
201 return (LINUX_AF_UNIX);
202 case AF_INET:
203 return (LINUX_AF_INET);
204 case AF_INET6:
205 return (LINUX_AF_INET6);
206 case AF_CCITT:
207 return (LINUX_AF_AX25);
208 case AF_IPX:
209 return (LINUX_AF_IPX);
210 case AF_APPLETALK:
211 return (LINUX_AF_APPLETALK);
212 }
213 return (-1);
214}
215
216static int
217linux_to_bsd_sockopt_level(int level)
218{
219
220 switch (level) {
221 case LINUX_SOL_SOCKET:
222 return (SOL_SOCKET);
223 }
224 return (level);
225}
226
227static int
228linux_to_bsd_ip_sockopt(int opt)
229{
230
231 switch (opt) {
232 case LINUX_IP_TOS:
233 return (IP_TOS);
234 case LINUX_IP_TTL:
235 return (IP_TTL);
236 case LINUX_IP_OPTIONS:
237 return (IP_OPTIONS);
238 case LINUX_IP_MULTICAST_IF:
239 return (IP_MULTICAST_IF);
240 case LINUX_IP_MULTICAST_TTL:
241 return (IP_MULTICAST_TTL);
242 case LINUX_IP_MULTICAST_LOOP:
243 return (IP_MULTICAST_LOOP);
244 case LINUX_IP_ADD_MEMBERSHIP:
245 return (IP_ADD_MEMBERSHIP);
246 case LINUX_IP_DROP_MEMBERSHIP:
247 return (IP_DROP_MEMBERSHIP);
248 case LINUX_IP_HDRINCL:
249 return (IP_HDRINCL);
250 }
251 return (-1);
252}
253
254static int
255linux_to_bsd_so_sockopt(int opt)
256{
257
258 switch (opt) {
259 case LINUX_SO_DEBUG:
260 return (SO_DEBUG);
261 case LINUX_SO_REUSEADDR:
262 return (SO_REUSEADDR);
263 case LINUX_SO_TYPE:
264 return (SO_TYPE);
265 case LINUX_SO_ERROR:
266 return (SO_ERROR);
267 case LINUX_SO_DONTROUTE:
268 return (SO_DONTROUTE);
269 case LINUX_SO_BROADCAST:
270 return (SO_BROADCAST);
271 case LINUX_SO_SNDBUF:
272 return (SO_SNDBUF);
273 case LINUX_SO_RCVBUF:
274 return (SO_RCVBUF);
275 case LINUX_SO_KEEPALIVE:
276 return (SO_KEEPALIVE);
277 case LINUX_SO_OOBINLINE:
278 return (SO_OOBINLINE);
279 case LINUX_SO_LINGER:
280 return (SO_LINGER);
281 }
282 return (-1);
283}
284
285static int
286linux_to_bsd_msg_flags(int flags)
287{
288 int ret_flags = 0;
289
290 if (flags & LINUX_MSG_OOB)
291 ret_flags |= MSG_OOB;
292 if (flags & LINUX_MSG_PEEK)
293 ret_flags |= MSG_PEEK;
294 if (flags & LINUX_MSG_DONTROUTE)
295 ret_flags |= MSG_DONTROUTE;
296 if (flags & LINUX_MSG_CTRUNC)
297 ret_flags |= MSG_CTRUNC;
298 if (flags & LINUX_MSG_TRUNC)
299 ret_flags |= MSG_TRUNC;
300 if (flags & LINUX_MSG_DONTWAIT)
301 ret_flags |= MSG_DONTWAIT;
302 if (flags & LINUX_MSG_EOR)
303 ret_flags |= MSG_EOR;
304 if (flags & LINUX_MSG_WAITALL)
305 ret_flags |= MSG_WAITALL;
306#if 0 /* not handled */
307 if (flags & LINUX_MSG_PROXY)
308 ;
309 if (flags & LINUX_MSG_FIN)
310 ;
311 if (flags & LINUX_MSG_SYN)
312 ;
313 if (flags & LINUX_MSG_CONFIRM)
314 ;
315 if (flags & LINUX_MSG_RST)
316 ;
317 if (flags & LINUX_MSG_ERRQUEUE)
318 ;
319 if (flags & LINUX_MSG_NOSIGNAL)
320 ;
321#endif
322 return ret_flags;
323}
324
325/*
326 * Allocate stackgap and put the converted sockaddr structure
327 * there, address on stackgap returned in sap.
328 */
329static int
330linux_sa_get(caddr_t *sgp, struct sockaddr **sap,
331 const struct osockaddr *osa, int *osalen)
332{
333 struct sockaddr *sa, *usa;
334 int alloclen, error;
335
336 alloclen = *osalen;
337 error = do_sa_get(&sa, osa, &alloclen, M_TEMP);
338 if (error)
339 return (error);
340
341 usa = (struct sockaddr *) stackgap_alloc(sgp, alloclen);
342 if (!usa) {
343 error = ENOMEM;
344 goto out;
345 }
346
347 if ((error = copyout(sa, usa, alloclen)))
348 goto out;
349
350 *sap = usa;
351 *osalen = alloclen;
352
353out:
354 FREE(sa, M_TEMP);
355 return (error);
356}
357
358static int
359linux_sa_put(struct osockaddr *osa)
360{
361 struct osockaddr sa;
362 int error, bdom;
363
364 /*
365 * Only read/write the osockaddr family part, the rest is
366 * not changed.
367 */
368 error = copyin(osa, &sa, sizeof(sa.sa_family));
369 if (error)
370 return (error);
371
372 bdom = bsd_to_linux_domain(sa.sa_family);
373 if (bdom == -1)
374 return (EINVAL);
375
376 sa.sa_family = bdom;
377 error = copyout(&sa, osa, sizeof(sa.sa_family));
378 if (error)
379 return (error);
380
381 return (0);
382}
383
384/* Return 0 if IP_HDRINCL is set for the given socket. */
385static int
386linux_check_hdrincl(struct thread *td, caddr_t *sg, int s)
387{
388 struct getsockopt_args /* {
389 int s;
390 int level;
391 int name;
392 caddr_t val;
393 int *avalsize;
394 } */ bsd_args;
395 int error;
396 caddr_t val, valsize;
397 int size_val = sizeof val;
398 int optval;
399
400 val = stackgap_alloc(sg, sizeof(int));
401 valsize = stackgap_alloc(sg, sizeof(int));
402
403 if ((error = copyout(&size_val, valsize, sizeof(size_val))))
404 return (error);
405
406 bsd_args.s = s;
407 bsd_args.level = IPPROTO_IP;
408 bsd_args.name = IP_HDRINCL;
409 bsd_args.val = val;
410 bsd_args.avalsize = (int *)valsize;
411 if ((error = getsockopt(td, &bsd_args)))
412 return (error);
413
414 if ((error = copyin(val, &optval, sizeof(optval))))
415 return (error);
416
417 return (optval == 0);
418}
419
420/*
421 * Updated sendto() when IP_HDRINCL is set:
422 * tweak endian-dependent fields in the IP packet.
423 */
424static int
425linux_sendto_hdrincl(struct thread *td, caddr_t *sg, struct sendto_args *bsd_args)
426{
427/*
428 * linux_ip_copysize defines how many bytes we should copy
429 * from the beginning of the IP packet before we customize it for BSD.
430 * It should include all the fields we modify (ip_len and ip_off)
431 * and be as small as possible to minimize copying overhead.
432 */
433#define linux_ip_copysize 8
434
435 struct ip *packet;
436 struct msghdr *msg;
437 struct iovec *iov;
438
439 int error;
440 struct sendmsg_args /* {
441 int s;
442 caddr_t msg;
443 int flags;
444 } */ sendmsg_args;
445
446 /* Check the packet isn't too small before we mess with it */
447 if (bsd_args->len < linux_ip_copysize)
448 return (EINVAL);
449
450 /*
451 * Tweaking the user buffer in place would be bad manners.
452 * We create a corrected IP header with just the needed length,
453 * then use an iovec to glue it to the rest of the user packet
454 * when calling sendmsg().
455 */
456 packet = (struct ip *)stackgap_alloc(sg, linux_ip_copysize);
457 msg = (struct msghdr *)stackgap_alloc(sg, sizeof(*msg));
458 iov = (struct iovec *)stackgap_alloc(sg, sizeof(*iov)*2);
459
460 /* Make a copy of the beginning of the packet to be sent */
461 if ((error = copyin(bsd_args->buf, packet, linux_ip_copysize)))
462 return (error);
463
464 /* Convert fields from Linux to BSD raw IP socket format */
465 packet->ip_len = bsd_args->len;
466 packet->ip_off = ntohs(packet->ip_off);
467
468 /* Prepare the msghdr and iovec structures describing the new packet */
469 msg->msg_name = bsd_args->to;
470 msg->msg_namelen = bsd_args->tolen;
471 msg->msg_iov = iov;
472 msg->msg_iovlen = 2;
473 msg->msg_control = NULL;
474 msg->msg_controllen = 0;
475 msg->msg_flags = 0;
476 iov[0].iov_base = (char *)packet;
477 iov[0].iov_len = linux_ip_copysize;
478 iov[1].iov_base = (char *)(bsd_args->buf) + linux_ip_copysize;
479 iov[1].iov_len = bsd_args->len - linux_ip_copysize;
480
481 sendmsg_args.s = bsd_args->s;
482 sendmsg_args.msg = (caddr_t)msg;
483 sendmsg_args.flags = bsd_args->flags;
484 return (sendmsg(td, &sendmsg_args));
485}
486
487struct linux_socket_args {
488 int domain;
489 int type;
490 int protocol;
491};
492
493static int
494linux_socket(struct thread *td, struct linux_socket_args *args)
495{
496 struct linux_socket_args linux_args;
497 struct socket_args /* {
498 int domain;
499 int type;
500 int protocol;
501 } */ bsd_args;
502 struct setsockopt_args /* {
503 int s;
504 int level;
505 int name;
506 caddr_t val;
507 int valsize;
508 } */ bsd_setsockopt_args;
509 int error;
510 int retval_socket;
511
512 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
513 return (error);
514
515 bsd_args.protocol = linux_args.protocol;
516 bsd_args.type = linux_args.type;
517 bsd_args.domain = linux_to_bsd_domain(linux_args.domain);
518 if (bsd_args.domain == -1)
519 return (EINVAL);
520
521 retval_socket = socket(td, &bsd_args);
522 if (bsd_args.type == SOCK_RAW
523 && (bsd_args.protocol == IPPROTO_RAW || bsd_args.protocol == 0)
524 && bsd_args.domain == AF_INET
525 && retval_socket >= 0) {
526 /* It's a raw IP socket: set the IP_HDRINCL option. */
527 caddr_t sg;
528 int *hdrincl;
529
530 sg = stackgap_init();
531 hdrincl = (int *)stackgap_alloc(&sg, sizeof(*hdrincl));
532 *hdrincl = 1;
533 bsd_setsockopt_args.s = td->td_retval[0];
534 bsd_setsockopt_args.level = IPPROTO_IP;
535 bsd_setsockopt_args.name = IP_HDRINCL;
536 bsd_setsockopt_args.val = (caddr_t)hdrincl;
537 bsd_setsockopt_args.valsize = sizeof(*hdrincl);
538 /* We ignore any error returned by setsockopt() */
539 setsockopt(td, &bsd_setsockopt_args);
540 /* Copy back the return value from socket() */
541 td->td_retval[0] = bsd_setsockopt_args.s;
542 }
543#ifdef INET6
544 /*
545 * Linux AF_INET6 socket has IPV6_V6ONLY setsockopt set to 0 by
546 * default and some apps depend on this. So, set V6ONLY to 0
547 * for Linux apps if the sysctl value is set to 1.
548 */
549 if (bsd_args.domain == PF_INET6 && retval_socket >= 0
550#ifndef KLD_MODULE
551 /*
552 * XXX: Avoid undefined symbol error with an IPv4 only
553 * kernel.
| 29 */
30
31/* XXX we use functions that might not exist. */
32#include "opt_compat.h"
33#include "opt_inet6.h"
34
35#ifndef COMPAT_43
36#error "Unable to compile Linux-emulator due to missing COMPAT_43 option!"
37#endif
38
39#include <sys/param.h>
40#include <sys/proc.h>
41#include <sys/systm.h>
42#include <sys/sysproto.h>
43#include <sys/fcntl.h>
44#include <sys/file.h>
45#include <sys/malloc.h>
46#include <sys/socket.h>
47#include <sys/socketvar.h>
48#include <sys/syscallsubr.h>
49#include <sys/uio.h>
50#include <sys/syslog.h>
51
52#include <netinet/in.h>
53#include <netinet/in_systm.h>
54#include <netinet/ip.h>
55#ifdef INET6
56#include <netinet/ip6.h>
57#include <netinet6/ip6_var.h>
58#endif
59
60#include <machine/../linux/linux.h>
61#include <machine/../linux/linux_proto.h>
62#include <compat/linux/linux_socket.h>
63#include <compat/linux/linux_util.h>
64
65#include <machine/limits.h>
66
67static int do_sa_get(struct sockaddr **, const struct osockaddr *, int *,
68 struct malloc_type *);
69static int linux_to_bsd_domain(int);
70
71/*
72 * Reads a linux sockaddr and does any necessary translation.
73 * Linux sockaddrs don't have a length field, only a family.
74 */
75static int
76linux_getsockaddr(struct sockaddr **sap, const struct osockaddr *osa, int len)
77{
78 int osalen = len;
79
80 return (do_sa_get(sap, osa, &osalen, M_SONAME));
81}
82
83/*
84 * Copy the osockaddr structure pointed to by osa to kernel, adjust
85 * family and convert to sockaddr.
86 */
87static int
88do_sa_get(struct sockaddr **sap, const struct osockaddr *osa, int *osalen,
89 struct malloc_type *mtype)
90{
91 int error=0, bdom;
92 struct sockaddr *sa;
93 struct osockaddr *kosa;
94 int alloclen;
95#ifdef INET6
96 int oldv6size;
97 struct sockaddr_in6 *sin6;
98#endif
99
100 if (*osalen < 2 || *osalen > UCHAR_MAX || !osa)
101 return (EINVAL);
102
103 alloclen = *osalen;
104#ifdef INET6
105 oldv6size = 0;
106 /*
107 * Check for old (pre-RFC2553) sockaddr_in6. We may accept it
108 * if it's a v4-mapped address, so reserve the proper space
109 * for it.
110 */
111 if (alloclen == sizeof (struct sockaddr_in6) - sizeof (u_int32_t)) {
112 alloclen = sizeof (struct sockaddr_in6);
113 oldv6size = 1;
114 }
115#endif
116
117 MALLOC(kosa, struct osockaddr *, alloclen, mtype, M_WAITOK);
118
119 if ((error = copyin(osa, kosa, *osalen)))
120 goto out;
121
122 bdom = linux_to_bsd_domain(kosa->sa_family);
123 if (bdom == -1) {
124 error = EINVAL;
125 goto out;
126 }
127
128#ifdef INET6
129 /*
130 * Older Linux IPv6 code uses obsolete RFC2133 struct sockaddr_in6,
131 * which lacks the scope id compared with RFC2553 one. If we detect
132 * the situation, reject the address and write a message to system log.
133 *
134 * Still accept addresses for which the scope id is not used.
135 */
136 if (oldv6size && bdom == AF_INET6) {
137 sin6 = (struct sockaddr_in6 *)kosa;
138 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) ||
139 (!IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) &&
140 !IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr) &&
141 !IN6_IS_ADDR_V4COMPAT(&sin6->sin6_addr) &&
142 !IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) &&
143 !IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))) {
144 sin6->sin6_scope_id = 0;
145 } else {
146 log(LOG_DEBUG,
147 "obsolete pre-RFC2553 sockaddr_in6 rejected");
148 error = EINVAL;
149 goto out;
150 }
151 } else
152#endif
153 if (bdom == AF_INET)
154 alloclen = sizeof(struct sockaddr_in);
155
156 sa = (struct sockaddr *) kosa;
157 sa->sa_family = bdom;
158 sa->sa_len = alloclen;
159
160 *sap = sa;
161 *osalen = alloclen;
162 return (0);
163
164out:
165 FREE(kosa, mtype);
166 return (error);
167}
168
169static int
170linux_to_bsd_domain(int domain)
171{
172
173 switch (domain) {
174 case LINUX_AF_UNSPEC:
175 return (AF_UNSPEC);
176 case LINUX_AF_UNIX:
177 return (AF_LOCAL);
178 case LINUX_AF_INET:
179 return (AF_INET);
180 case LINUX_AF_INET6:
181 return (AF_INET6);
182 case LINUX_AF_AX25:
183 return (AF_CCITT);
184 case LINUX_AF_IPX:
185 return (AF_IPX);
186 case LINUX_AF_APPLETALK:
187 return (AF_APPLETALK);
188 }
189 return (-1);
190}
191
192#ifndef __alpha__
193static int
194bsd_to_linux_domain(int domain)
195{
196
197 switch (domain) {
198 case AF_UNSPEC:
199 return (LINUX_AF_UNSPEC);
200 case AF_LOCAL:
201 return (LINUX_AF_UNIX);
202 case AF_INET:
203 return (LINUX_AF_INET);
204 case AF_INET6:
205 return (LINUX_AF_INET6);
206 case AF_CCITT:
207 return (LINUX_AF_AX25);
208 case AF_IPX:
209 return (LINUX_AF_IPX);
210 case AF_APPLETALK:
211 return (LINUX_AF_APPLETALK);
212 }
213 return (-1);
214}
215
216static int
217linux_to_bsd_sockopt_level(int level)
218{
219
220 switch (level) {
221 case LINUX_SOL_SOCKET:
222 return (SOL_SOCKET);
223 }
224 return (level);
225}
226
227static int
228linux_to_bsd_ip_sockopt(int opt)
229{
230
231 switch (opt) {
232 case LINUX_IP_TOS:
233 return (IP_TOS);
234 case LINUX_IP_TTL:
235 return (IP_TTL);
236 case LINUX_IP_OPTIONS:
237 return (IP_OPTIONS);
238 case LINUX_IP_MULTICAST_IF:
239 return (IP_MULTICAST_IF);
240 case LINUX_IP_MULTICAST_TTL:
241 return (IP_MULTICAST_TTL);
242 case LINUX_IP_MULTICAST_LOOP:
243 return (IP_MULTICAST_LOOP);
244 case LINUX_IP_ADD_MEMBERSHIP:
245 return (IP_ADD_MEMBERSHIP);
246 case LINUX_IP_DROP_MEMBERSHIP:
247 return (IP_DROP_MEMBERSHIP);
248 case LINUX_IP_HDRINCL:
249 return (IP_HDRINCL);
250 }
251 return (-1);
252}
253
254static int
255linux_to_bsd_so_sockopt(int opt)
256{
257
258 switch (opt) {
259 case LINUX_SO_DEBUG:
260 return (SO_DEBUG);
261 case LINUX_SO_REUSEADDR:
262 return (SO_REUSEADDR);
263 case LINUX_SO_TYPE:
264 return (SO_TYPE);
265 case LINUX_SO_ERROR:
266 return (SO_ERROR);
267 case LINUX_SO_DONTROUTE:
268 return (SO_DONTROUTE);
269 case LINUX_SO_BROADCAST:
270 return (SO_BROADCAST);
271 case LINUX_SO_SNDBUF:
272 return (SO_SNDBUF);
273 case LINUX_SO_RCVBUF:
274 return (SO_RCVBUF);
275 case LINUX_SO_KEEPALIVE:
276 return (SO_KEEPALIVE);
277 case LINUX_SO_OOBINLINE:
278 return (SO_OOBINLINE);
279 case LINUX_SO_LINGER:
280 return (SO_LINGER);
281 }
282 return (-1);
283}
284
285static int
286linux_to_bsd_msg_flags(int flags)
287{
288 int ret_flags = 0;
289
290 if (flags & LINUX_MSG_OOB)
291 ret_flags |= MSG_OOB;
292 if (flags & LINUX_MSG_PEEK)
293 ret_flags |= MSG_PEEK;
294 if (flags & LINUX_MSG_DONTROUTE)
295 ret_flags |= MSG_DONTROUTE;
296 if (flags & LINUX_MSG_CTRUNC)
297 ret_flags |= MSG_CTRUNC;
298 if (flags & LINUX_MSG_TRUNC)
299 ret_flags |= MSG_TRUNC;
300 if (flags & LINUX_MSG_DONTWAIT)
301 ret_flags |= MSG_DONTWAIT;
302 if (flags & LINUX_MSG_EOR)
303 ret_flags |= MSG_EOR;
304 if (flags & LINUX_MSG_WAITALL)
305 ret_flags |= MSG_WAITALL;
306#if 0 /* not handled */
307 if (flags & LINUX_MSG_PROXY)
308 ;
309 if (flags & LINUX_MSG_FIN)
310 ;
311 if (flags & LINUX_MSG_SYN)
312 ;
313 if (flags & LINUX_MSG_CONFIRM)
314 ;
315 if (flags & LINUX_MSG_RST)
316 ;
317 if (flags & LINUX_MSG_ERRQUEUE)
318 ;
319 if (flags & LINUX_MSG_NOSIGNAL)
320 ;
321#endif
322 return ret_flags;
323}
324
325/*
326 * Allocate stackgap and put the converted sockaddr structure
327 * there, address on stackgap returned in sap.
328 */
329static int
330linux_sa_get(caddr_t *sgp, struct sockaddr **sap,
331 const struct osockaddr *osa, int *osalen)
332{
333 struct sockaddr *sa, *usa;
334 int alloclen, error;
335
336 alloclen = *osalen;
337 error = do_sa_get(&sa, osa, &alloclen, M_TEMP);
338 if (error)
339 return (error);
340
341 usa = (struct sockaddr *) stackgap_alloc(sgp, alloclen);
342 if (!usa) {
343 error = ENOMEM;
344 goto out;
345 }
346
347 if ((error = copyout(sa, usa, alloclen)))
348 goto out;
349
350 *sap = usa;
351 *osalen = alloclen;
352
353out:
354 FREE(sa, M_TEMP);
355 return (error);
356}
357
358static int
359linux_sa_put(struct osockaddr *osa)
360{
361 struct osockaddr sa;
362 int error, bdom;
363
364 /*
365 * Only read/write the osockaddr family part, the rest is
366 * not changed.
367 */
368 error = copyin(osa, &sa, sizeof(sa.sa_family));
369 if (error)
370 return (error);
371
372 bdom = bsd_to_linux_domain(sa.sa_family);
373 if (bdom == -1)
374 return (EINVAL);
375
376 sa.sa_family = bdom;
377 error = copyout(&sa, osa, sizeof(sa.sa_family));
378 if (error)
379 return (error);
380
381 return (0);
382}
383
384/* Return 0 if IP_HDRINCL is set for the given socket. */
385static int
386linux_check_hdrincl(struct thread *td, caddr_t *sg, int s)
387{
388 struct getsockopt_args /* {
389 int s;
390 int level;
391 int name;
392 caddr_t val;
393 int *avalsize;
394 } */ bsd_args;
395 int error;
396 caddr_t val, valsize;
397 int size_val = sizeof val;
398 int optval;
399
400 val = stackgap_alloc(sg, sizeof(int));
401 valsize = stackgap_alloc(sg, sizeof(int));
402
403 if ((error = copyout(&size_val, valsize, sizeof(size_val))))
404 return (error);
405
406 bsd_args.s = s;
407 bsd_args.level = IPPROTO_IP;
408 bsd_args.name = IP_HDRINCL;
409 bsd_args.val = val;
410 bsd_args.avalsize = (int *)valsize;
411 if ((error = getsockopt(td, &bsd_args)))
412 return (error);
413
414 if ((error = copyin(val, &optval, sizeof(optval))))
415 return (error);
416
417 return (optval == 0);
418}
419
420/*
421 * Updated sendto() when IP_HDRINCL is set:
422 * tweak endian-dependent fields in the IP packet.
423 */
424static int
425linux_sendto_hdrincl(struct thread *td, caddr_t *sg, struct sendto_args *bsd_args)
426{
427/*
428 * linux_ip_copysize defines how many bytes we should copy
429 * from the beginning of the IP packet before we customize it for BSD.
430 * It should include all the fields we modify (ip_len and ip_off)
431 * and be as small as possible to minimize copying overhead.
432 */
433#define linux_ip_copysize 8
434
435 struct ip *packet;
436 struct msghdr *msg;
437 struct iovec *iov;
438
439 int error;
440 struct sendmsg_args /* {
441 int s;
442 caddr_t msg;
443 int flags;
444 } */ sendmsg_args;
445
446 /* Check the packet isn't too small before we mess with it */
447 if (bsd_args->len < linux_ip_copysize)
448 return (EINVAL);
449
450 /*
451 * Tweaking the user buffer in place would be bad manners.
452 * We create a corrected IP header with just the needed length,
453 * then use an iovec to glue it to the rest of the user packet
454 * when calling sendmsg().
455 */
456 packet = (struct ip *)stackgap_alloc(sg, linux_ip_copysize);
457 msg = (struct msghdr *)stackgap_alloc(sg, sizeof(*msg));
458 iov = (struct iovec *)stackgap_alloc(sg, sizeof(*iov)*2);
459
460 /* Make a copy of the beginning of the packet to be sent */
461 if ((error = copyin(bsd_args->buf, packet, linux_ip_copysize)))
462 return (error);
463
464 /* Convert fields from Linux to BSD raw IP socket format */
465 packet->ip_len = bsd_args->len;
466 packet->ip_off = ntohs(packet->ip_off);
467
468 /* Prepare the msghdr and iovec structures describing the new packet */
469 msg->msg_name = bsd_args->to;
470 msg->msg_namelen = bsd_args->tolen;
471 msg->msg_iov = iov;
472 msg->msg_iovlen = 2;
473 msg->msg_control = NULL;
474 msg->msg_controllen = 0;
475 msg->msg_flags = 0;
476 iov[0].iov_base = (char *)packet;
477 iov[0].iov_len = linux_ip_copysize;
478 iov[1].iov_base = (char *)(bsd_args->buf) + linux_ip_copysize;
479 iov[1].iov_len = bsd_args->len - linux_ip_copysize;
480
481 sendmsg_args.s = bsd_args->s;
482 sendmsg_args.msg = (caddr_t)msg;
483 sendmsg_args.flags = bsd_args->flags;
484 return (sendmsg(td, &sendmsg_args));
485}
486
487struct linux_socket_args {
488 int domain;
489 int type;
490 int protocol;
491};
492
493static int
494linux_socket(struct thread *td, struct linux_socket_args *args)
495{
496 struct linux_socket_args linux_args;
497 struct socket_args /* {
498 int domain;
499 int type;
500 int protocol;
501 } */ bsd_args;
502 struct setsockopt_args /* {
503 int s;
504 int level;
505 int name;
506 caddr_t val;
507 int valsize;
508 } */ bsd_setsockopt_args;
509 int error;
510 int retval_socket;
511
512 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
513 return (error);
514
515 bsd_args.protocol = linux_args.protocol;
516 bsd_args.type = linux_args.type;
517 bsd_args.domain = linux_to_bsd_domain(linux_args.domain);
518 if (bsd_args.domain == -1)
519 return (EINVAL);
520
521 retval_socket = socket(td, &bsd_args);
522 if (bsd_args.type == SOCK_RAW
523 && (bsd_args.protocol == IPPROTO_RAW || bsd_args.protocol == 0)
524 && bsd_args.domain == AF_INET
525 && retval_socket >= 0) {
526 /* It's a raw IP socket: set the IP_HDRINCL option. */
527 caddr_t sg;
528 int *hdrincl;
529
530 sg = stackgap_init();
531 hdrincl = (int *)stackgap_alloc(&sg, sizeof(*hdrincl));
532 *hdrincl = 1;
533 bsd_setsockopt_args.s = td->td_retval[0];
534 bsd_setsockopt_args.level = IPPROTO_IP;
535 bsd_setsockopt_args.name = IP_HDRINCL;
536 bsd_setsockopt_args.val = (caddr_t)hdrincl;
537 bsd_setsockopt_args.valsize = sizeof(*hdrincl);
538 /* We ignore any error returned by setsockopt() */
539 setsockopt(td, &bsd_setsockopt_args);
540 /* Copy back the return value from socket() */
541 td->td_retval[0] = bsd_setsockopt_args.s;
542 }
543#ifdef INET6
544 /*
545 * Linux AF_INET6 socket has IPV6_V6ONLY setsockopt set to 0 by
546 * default and some apps depend on this. So, set V6ONLY to 0
547 * for Linux apps if the sysctl value is set to 1.
548 */
549 if (bsd_args.domain == PF_INET6 && retval_socket >= 0
550#ifndef KLD_MODULE
551 /*
552 * XXX: Avoid undefined symbol error with an IPv4 only
553 * kernel.
|
555 && ip6_v6only
556#endif
557 ) {
558 caddr_t sg;
559 int *v6only;
560
561 sg = stackgap_init();
562 v6only = (int *)stackgap_alloc(&sg, sizeof(*v6only));
563 *v6only = 0;
564 bsd_setsockopt_args.s = td->td_retval[0];
565 bsd_setsockopt_args.level = IPPROTO_IPV6;
566 bsd_setsockopt_args.name = IPV6_V6ONLY;
567 bsd_setsockopt_args.val = (caddr_t)v6only;
568 bsd_setsockopt_args.valsize = sizeof(*v6only);
569 /* We ignore any error returned by setsockopt() */
570 setsockopt(td, &bsd_setsockopt_args);
571 /* Copy back the return value from socket() */
572 td->td_retval[0] = bsd_setsockopt_args.s;
573 }
574#endif
575
576 return (retval_socket);
577}
578
579struct linux_bind_args {
580 int s;
581 struct osockaddr *name;
582 int namelen;
583};
584
585static int
586linux_bind(struct thread *td, struct linux_bind_args *args)
587{
588 struct linux_bind_args linux_args;
589 struct sockaddr *sa;
590 int error;
591
592 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
593 return (error);
594
595 error = linux_getsockaddr(&sa, linux_args.name, linux_args.namelen);
596 if (error)
597 return (error);
598
599 return (kern_bind(td, linux_args.s, sa));
600}
601
602struct linux_connect_args {
603 int s;
604 struct osockaddr * name;
605 int namelen;
606};
607int linux_connect(struct thread *, struct linux_connect_args *);
608#endif /* !__alpha__*/
609
610int
611linux_connect(struct thread *td, struct linux_connect_args *args)
612{
613 struct linux_connect_args linux_args;
614 struct socket *so;
615 struct sockaddr *sa;
616 u_int fflag;
617 int error;
618
619#ifdef __alpha__
620 bcopy(args, &linux_args, sizeof(linux_args));
621#else
622 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
623 return (error);
624#endif /* __alpha__ */
625
626 error = linux_getsockaddr(&sa, (struct osockaddr *)linux_args.name,
627 linux_args.namelen);
628 if (error)
629 return (error);
630
631 error = kern_connect(td, linux_args.s, sa);
632 if (error != EISCONN)
633 return (error);
634
635 /*
636 * Linux doesn't return EISCONN the first time it occurs,
637 * when on a non-blocking socket. Instead it returns the
638 * error getsockopt(SOL_SOCKET, SO_ERROR) would return on BSD.
639 */
640 if ((error = fgetsock(td, linux_args.s, &so, &fflag)) != 0)
641 return(error);
642 error = EISCONN;
643 if (fflag & FNONBLOCK) {
644 if (so->so_emuldata == 0)
645 error = so->so_error;
646 so->so_emuldata = (void *)1;
647 }
648 fputsock(so);
649 return (error);
650}
651
652#ifndef __alpha__
653
654struct linux_listen_args {
655 int s;
656 int backlog;
657};
658
659static int
660linux_listen(struct thread *td, struct linux_listen_args *args)
661{
662 struct linux_listen_args linux_args;
663 struct listen_args /* {
664 int s;
665 int backlog;
666 } */ bsd_args;
667 int error;
668
669 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
670 return (error);
671
672 bsd_args.s = linux_args.s;
673 bsd_args.backlog = linux_args.backlog;
674 return (listen(td, &bsd_args));
675}
676
677struct linux_accept_args {
678 int s;
679 struct osockaddr *addr;
680 int *namelen;
681};
682
683static int
684linux_accept(struct thread *td, struct linux_accept_args *args)
685{
686 struct linux_accept_args linux_args;
687 struct accept_args /* {
688 int s;
689 caddr_t name;
690 int *anamelen;
691 } */ bsd_args;
692 struct close_args /* {
693 int fd;
694 } */ c_args;
695 struct fcntl_args /* {
696 int fd;
697 int cmd;
698 long arg;
699 } */ f_args;
700 int error;
701
702 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
703 return (error);
704
705 bsd_args.s = linux_args.s;
706 bsd_args.name = (caddr_t)linux_args.addr;
707 bsd_args.anamelen = linux_args.namelen;
708 error = oaccept(td, &bsd_args);
709 if (error)
710 return (error);
711 if (linux_args.addr) {
712 error = linux_sa_put(linux_args.addr);
713 if (error) {
714 c_args.fd = td->td_retval[0];
715 (void)close(td, &c_args);
716 return (error);
717 }
718 }
719
720 /*
721 * linux appears not to copy flags from the parent socket to the
722 * accepted one, so we must clear the flags in the new descriptor.
723 * Ignore any errors, because we already have an open fd.
724 */
725 f_args.fd = td->td_retval[0];
726 f_args.cmd = F_SETFL;
727 f_args.arg = 0;
728 (void)fcntl(td, &f_args);
729 td->td_retval[0] = f_args.fd;
730 return (0);
731}
732
733struct linux_getsockname_args {
734 int s;
735 struct osockaddr *addr;
736 int *namelen;
737};
738
739static int
740linux_getsockname(struct thread *td, struct linux_getsockname_args *args)
741{
742 struct linux_getsockname_args linux_args;
743 struct getsockname_args /* {
744 int fdes;
745 caddr_t asa;
746 int *alen;
747 } */ bsd_args;
748 int error;
749
750 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
751 return (error);
752
753 bsd_args.fdes = linux_args.s;
754 bsd_args.asa = (caddr_t) linux_args.addr;
755 bsd_args.alen = linux_args.namelen;
756 error = ogetsockname(td, &bsd_args);
757 if (error)
758 return (error);
759 error = linux_sa_put(linux_args.addr);
760 if (error)
761 return (error);
762 return (0);
763}
764
765struct linux_getpeername_args {
766 int s;
767 struct osockaddr *addr;
768 int *namelen;
769};
770
771static int
772linux_getpeername(struct thread *td, struct linux_getpeername_args *args)
773{
774 struct linux_getpeername_args linux_args;
775 struct ogetpeername_args /* {
776 int fdes;
777 caddr_t asa;
778 int *alen;
779 } */ bsd_args;
780 int error;
781
782 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
783 return (error);
784
785 bsd_args.fdes = linux_args.s;
786 bsd_args.asa = (caddr_t) linux_args.addr;
787 bsd_args.alen = linux_args.namelen;
788 error = ogetpeername(td, &bsd_args);
789 if (error)
790 return (error);
791 error = linux_sa_put(linux_args.addr);
792 if (error)
793 return (error);
794 return (0);
795}
796
797struct linux_socketpair_args {
798 int domain;
799 int type;
800 int protocol;
801 int *rsv;
802};
803
804static int
805linux_socketpair(struct thread *td, struct linux_socketpair_args *args)
806{
807 struct linux_socketpair_args linux_args;
808 struct socketpair_args /* {
809 int domain;
810 int type;
811 int protocol;
812 int *rsv;
813 } */ bsd_args;
814 int error;
815
816 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
817 return (error);
818
819 bsd_args.domain = linux_to_bsd_domain(linux_args.domain);
820 if (bsd_args.domain == -1)
821 return (EINVAL);
822
823 bsd_args.type = linux_args.type;
824 bsd_args.protocol = linux_args.protocol;
825 bsd_args.rsv = linux_args.rsv;
826 return (socketpair(td, &bsd_args));
827}
828
829struct linux_send_args {
830 int s;
831 void *msg;
832 int len;
833 int flags;
834};
835
836static int
837linux_send(struct thread *td, struct linux_send_args *args)
838{
839 struct linux_send_args linux_args;
840 struct osend_args /* {
841 int s;
842 caddr_t buf;
843 int len;
844 int flags;
845 } */ bsd_args;
846 int error;
847
848 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
849 return (error);
850
851 bsd_args.s = linux_args.s;
852 bsd_args.buf = linux_args.msg;
853 bsd_args.len = linux_args.len;
854 bsd_args.flags = linux_args.flags;
855 return (osend(td, &bsd_args));
856}
857
858struct linux_recv_args {
859 int s;
860 void *msg;
861 int len;
862 int flags;
863};
864
865static int
866linux_recv(struct thread *td, struct linux_recv_args *args)
867{
868 struct linux_recv_args linux_args;
869 struct orecv_args /* {
870 int s;
871 caddr_t buf;
872 int len;
873 int flags;
874 } */ bsd_args;
875 int error;
876
877 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
878 return (error);
879
880 bsd_args.s = linux_args.s;
881 bsd_args.buf = linux_args.msg;
882 bsd_args.len = linux_args.len;
883 bsd_args.flags = linux_args.flags;
884 return (orecv(td, &bsd_args));
885}
886
887struct linux_sendto_args {
888 int s;
889 void *msg;
890 int len;
891 int flags;
892 caddr_t to;
893 int tolen;
894};
895
896static int
897linux_sendto(struct thread *td, struct linux_sendto_args *args)
898{
899 struct linux_sendto_args linux_args;
900 struct sendto_args /* {
901 int s;
902 caddr_t buf;
903 size_t len;
904 int flags;
905 caddr_t to;
906 int tolen;
907 } */ bsd_args;
908 caddr_t sg = stackgap_init();
909 struct sockaddr *to;
910 int tolen, error;
911
912 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
913 return (error);
914
915 tolen = linux_args.tolen;
916 if (linux_args.to) {
917 error = linux_sa_get(&sg, &to,
918 (struct osockaddr *) linux_args.to, &tolen);
919 if (error)
920 return (error);
921 } else
922 to = NULL;
923
924 bsd_args.s = linux_args.s;
925 bsd_args.buf = linux_args.msg;
926 bsd_args.len = linux_args.len;
927 bsd_args.flags = linux_args.flags;
928 bsd_args.to = (caddr_t) to;
929 bsd_args.tolen = (unsigned int) tolen;
930
931 if (linux_check_hdrincl(td, &sg, linux_args.s) == 0)
932 /* IP_HDRINCL set, tweak the packet before sending */
933 return (linux_sendto_hdrincl(td, &sg, &bsd_args));
934
935 return (sendto(td, &bsd_args));
936}
937
938struct linux_recvfrom_args {
939 int s;
940 void *buf;
941 int len;
942 int flags;
943 caddr_t from;
944 int *fromlen;
945};
946
947static int
948linux_recvfrom(struct thread *td, struct linux_recvfrom_args *args)
949{
950 struct linux_recvfrom_args linux_args;
951 struct recvfrom_args /* {
952 int s;
953 caddr_t buf;
954 size_t len;
955 int flags;
956 caddr_t from;
957 int *fromlenaddr;
958 } */ bsd_args;
959 int error;
960
961 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
962 return (error);
963
964 bsd_args.s = linux_args.s;
965 bsd_args.buf = linux_args.buf;
966 bsd_args.len = linux_args.len;
967 bsd_args.flags = linux_to_bsd_msg_flags(linux_args.flags);
968 bsd_args.from = linux_args.from;
969 bsd_args.fromlenaddr = linux_args.fromlen;
970 error = orecvfrom(td, &bsd_args);
971 if (error)
972 return (error);
973 if (linux_args.from) {
974 error = linux_sa_put((struct osockaddr *) linux_args.from);
975 if (error)
976 return (error);
977 }
978 return (0);
979}
980
981struct linux_sendmsg_args {
982 int s;
983 const struct msghdr *msg;
984 int flags;
985};
986
987static int
988linux_sendmsg(struct thread *td, struct linux_sendmsg_args *args)
989{
990 struct linux_sendmsg_args linux_args;
991 struct sendmsg_args /* {
992 int s;
993 const struct msghdr *msg;
994 int flags;
995 } */ bsd_args;
996 struct msghdr msg;
997 struct msghdr *nmsg = NULL;
998 int error;
999 int level;
1000 caddr_t control;
1001
1002 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1003 return (error);
1004
1005 error = copyin(linux_args.msg, &msg, sizeof(msg));
1006 if (error)
1007 return (error);
1008
1009 if (msg.msg_name) {
1010 struct sockaddr *sa;
1011 caddr_t sg = stackgap_init();
1012
1013 nmsg = (struct msghdr *) stackgap_alloc(&sg,
1014 sizeof(struct msghdr));
1015 if (!nmsg)
1016 return (ENOMEM);
1017
1018 error = linux_sa_get(&sg, &sa,
1019 (struct osockaddr *) msg.msg_name, &msg.msg_namelen);
1020 if (error)
1021 return (error);
1022
1023 msg.msg_name = (struct sockaddr *) sa;
1024 error = copyout(&msg, nmsg, sizeof(struct msghdr));
1025 if (error)
1026 return (error);
1027 }
1028
1029 error = copyin(&linux_args.msg->msg_control, &control,
1030 sizeof(caddr_t));
1031 if (error)
1032 return (error);
1033
1034 if (control == NULL)
1035 goto done;
1036
1037 error = copyin(&((struct cmsghdr*)control)->cmsg_level, &level,
1038 sizeof(int));
1039 if (error)
1040 return (error);
1041
1042 if (level == 1) {
1043 /*
1044 * Linux thinks that SOL_SOCKET is 1; we know
1045 * that it's really 0xffff, of course.
1046 */
1047 level = SOL_SOCKET;
1048 error = copyout(&level,
1049 &((struct cmsghdr *)control)->cmsg_level, sizeof(int));
1050 if (error)
1051 return (error);
1052 }
1053done:
1054 bsd_args.s = linux_args.s;
1055 bsd_args.msg = (caddr_t)nmsg;
1056 bsd_args.flags = linux_args.flags;
1057 return (sendmsg(td, &bsd_args));
1058}
1059
1060struct linux_recvmsg_args {
1061 int s;
1062 struct msghdr *msg;
1063 int flags;
1064};
1065
1066static int
1067linux_recvmsg(struct thread *td, struct linux_recvmsg_args *args)
1068{
1069 struct linux_recvmsg_args linux_args;
1070 struct recvmsg_args /* {
1071 int s;
1072 struct msghdr *msg;
1073 int flags;
1074 } */ bsd_args;
1075 struct msghdr msg;
1076 int error;
1077
1078 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1079 return (error);
1080
1081 bsd_args.s = linux_args.s;
1082 bsd_args.msg = linux_args.msg;
1083 bsd_args.flags = linux_to_bsd_msg_flags(linux_args.flags);
1084 error = recvmsg(td, &bsd_args);
1085 if (error)
1086 return (error);
1087
1088 error = copyin(linux_args.msg, &msg, sizeof(msg));
1089 if (error)
1090 return (error);
1091 if (msg.msg_name && msg.msg_namelen > 2)
1092 error = linux_sa_put(msg.msg_name);
1093 return (error);
1094}
1095
1096struct linux_shutdown_args {
1097 int s;
1098 int how;
1099};
1100
1101static int
1102linux_shutdown(struct thread *td, struct linux_shutdown_args *args)
1103{
1104 struct linux_shutdown_args linux_args;
1105 struct shutdown_args /* {
1106 int s;
1107 int how;
1108 } */ bsd_args;
1109 int error;
1110
1111 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1112 return (error);
1113
1114 bsd_args.s = linux_args.s;
1115 bsd_args.how = linux_args.how;
1116 return (shutdown(td, &bsd_args));
1117}
1118
1119struct linux_setsockopt_args {
1120 int s;
1121 int level;
1122 int optname;
1123 void *optval;
1124 int optlen;
1125};
1126
1127static int
1128linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args)
1129{
1130 struct linux_setsockopt_args linux_args;
1131 struct setsockopt_args /* {
1132 int s;
1133 int level;
1134 int name;
1135 caddr_t val;
1136 int valsize;
1137 } */ bsd_args;
1138 int error, name;
1139
1140 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1141 return (error);
1142
1143 bsd_args.s = linux_args.s;
1144 bsd_args.level = linux_to_bsd_sockopt_level(linux_args.level);
1145 switch (bsd_args.level) {
1146 case SOL_SOCKET:
1147 name = linux_to_bsd_so_sockopt(linux_args.optname);
1148 break;
1149 case IPPROTO_IP:
1150 name = linux_to_bsd_ip_sockopt(linux_args.optname);
1151 break;
1152 case IPPROTO_TCP:
1153 /* Linux TCP option values match BSD's */
1154 name = linux_args.optname;
1155 break;
1156 default:
1157 name = -1;
1158 break;
1159 }
1160 if (name == -1)
1161 return (EINVAL);
1162
1163 bsd_args.name = name;
1164 bsd_args.val = linux_args.optval;
1165 bsd_args.valsize = linux_args.optlen;
1166 return (setsockopt(td, &bsd_args));
1167}
1168
1169struct linux_getsockopt_args {
1170 int s;
1171 int level;
1172 int optname;
1173 void *optval;
1174 int *optlen;
1175};
1176
1177static int
1178linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args)
1179{
1180 struct linux_getsockopt_args linux_args;
1181 struct getsockopt_args /* {
1182 int s;
1183 int level;
1184 int name;
1185 caddr_t val;
1186 int *avalsize;
1187 } */ bsd_args;
1188 int error, name;
1189
1190 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1191 return (error);
1192
1193 bsd_args.s = linux_args.s;
1194 bsd_args.level = linux_to_bsd_sockopt_level(linux_args.level);
1195 switch (bsd_args.level) {
1196 case SOL_SOCKET:
1197 name = linux_to_bsd_so_sockopt(linux_args.optname);
1198 break;
1199 case IPPROTO_IP:
1200 name = linux_to_bsd_ip_sockopt(linux_args.optname);
1201 break;
1202 case IPPROTO_TCP:
1203 /* Linux TCP option values match BSD's */
1204 name = linux_args.optname;
1205 break;
1206 default:
1207 name = -1;
1208 break;
1209 }
1210 if (name == -1)
1211 return (EINVAL);
1212
1213 bsd_args.name = name;
1214 bsd_args.val = linux_args.optval;
1215 bsd_args.avalsize = linux_args.optlen;
1216 return (getsockopt(td, &bsd_args));
1217}
1218
1219int
1220linux_socketcall(struct thread *td, struct linux_socketcall_args *args)
1221{
1222 void *arg = (void *)args->args;
1223
1224 switch (args->what) {
1225 case LINUX_SOCKET:
1226 return (linux_socket(td, arg));
1227 case LINUX_BIND:
1228 return (linux_bind(td, arg));
1229 case LINUX_CONNECT:
1230 return (linux_connect(td, arg));
1231 case LINUX_LISTEN:
1232 return (linux_listen(td, arg));
1233 case LINUX_ACCEPT:
1234 return (linux_accept(td, arg));
1235 case LINUX_GETSOCKNAME:
1236 return (linux_getsockname(td, arg));
1237 case LINUX_GETPEERNAME:
1238 return (linux_getpeername(td, arg));
1239 case LINUX_SOCKETPAIR:
1240 return (linux_socketpair(td, arg));
1241 case LINUX_SEND:
1242 return (linux_send(td, arg));
1243 case LINUX_RECV:
1244 return (linux_recv(td, arg));
1245 case LINUX_SENDTO:
1246 return (linux_sendto(td, arg));
1247 case LINUX_RECVFROM:
1248 return (linux_recvfrom(td, arg));
1249 case LINUX_SHUTDOWN:
1250 return (linux_shutdown(td, arg));
1251 case LINUX_SETSOCKOPT:
1252 return (linux_setsockopt(td, arg));
1253 case LINUX_GETSOCKOPT:
1254 return (linux_getsockopt(td, arg));
1255 case LINUX_SENDMSG:
1256 return (linux_sendmsg(td, arg));
1257 case LINUX_RECVMSG:
1258 return (linux_recvmsg(td, arg));
1259 }
1260
1261 uprintf("LINUX: 'socket' typ=%d not implemented\n", args->what);
1262 return (ENOSYS);
1263}
1264#endif /*!__alpha__*/
| 555 && ip6_v6only
556#endif
557 ) {
558 caddr_t sg;
559 int *v6only;
560
561 sg = stackgap_init();
562 v6only = (int *)stackgap_alloc(&sg, sizeof(*v6only));
563 *v6only = 0;
564 bsd_setsockopt_args.s = td->td_retval[0];
565 bsd_setsockopt_args.level = IPPROTO_IPV6;
566 bsd_setsockopt_args.name = IPV6_V6ONLY;
567 bsd_setsockopt_args.val = (caddr_t)v6only;
568 bsd_setsockopt_args.valsize = sizeof(*v6only);
569 /* We ignore any error returned by setsockopt() */
570 setsockopt(td, &bsd_setsockopt_args);
571 /* Copy back the return value from socket() */
572 td->td_retval[0] = bsd_setsockopt_args.s;
573 }
574#endif
575
576 return (retval_socket);
577}
578
579struct linux_bind_args {
580 int s;
581 struct osockaddr *name;
582 int namelen;
583};
584
585static int
586linux_bind(struct thread *td, struct linux_bind_args *args)
587{
588 struct linux_bind_args linux_args;
589 struct sockaddr *sa;
590 int error;
591
592 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
593 return (error);
594
595 error = linux_getsockaddr(&sa, linux_args.name, linux_args.namelen);
596 if (error)
597 return (error);
598
599 return (kern_bind(td, linux_args.s, sa));
600}
601
602struct linux_connect_args {
603 int s;
604 struct osockaddr * name;
605 int namelen;
606};
607int linux_connect(struct thread *, struct linux_connect_args *);
608#endif /* !__alpha__*/
609
610int
611linux_connect(struct thread *td, struct linux_connect_args *args)
612{
613 struct linux_connect_args linux_args;
614 struct socket *so;
615 struct sockaddr *sa;
616 u_int fflag;
617 int error;
618
619#ifdef __alpha__
620 bcopy(args, &linux_args, sizeof(linux_args));
621#else
622 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
623 return (error);
624#endif /* __alpha__ */
625
626 error = linux_getsockaddr(&sa, (struct osockaddr *)linux_args.name,
627 linux_args.namelen);
628 if (error)
629 return (error);
630
631 error = kern_connect(td, linux_args.s, sa);
632 if (error != EISCONN)
633 return (error);
634
635 /*
636 * Linux doesn't return EISCONN the first time it occurs,
637 * when on a non-blocking socket. Instead it returns the
638 * error getsockopt(SOL_SOCKET, SO_ERROR) would return on BSD.
639 */
640 if ((error = fgetsock(td, linux_args.s, &so, &fflag)) != 0)
641 return(error);
642 error = EISCONN;
643 if (fflag & FNONBLOCK) {
644 if (so->so_emuldata == 0)
645 error = so->so_error;
646 so->so_emuldata = (void *)1;
647 }
648 fputsock(so);
649 return (error);
650}
651
652#ifndef __alpha__
653
654struct linux_listen_args {
655 int s;
656 int backlog;
657};
658
659static int
660linux_listen(struct thread *td, struct linux_listen_args *args)
661{
662 struct linux_listen_args linux_args;
663 struct listen_args /* {
664 int s;
665 int backlog;
666 } */ bsd_args;
667 int error;
668
669 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
670 return (error);
671
672 bsd_args.s = linux_args.s;
673 bsd_args.backlog = linux_args.backlog;
674 return (listen(td, &bsd_args));
675}
676
677struct linux_accept_args {
678 int s;
679 struct osockaddr *addr;
680 int *namelen;
681};
682
683static int
684linux_accept(struct thread *td, struct linux_accept_args *args)
685{
686 struct linux_accept_args linux_args;
687 struct accept_args /* {
688 int s;
689 caddr_t name;
690 int *anamelen;
691 } */ bsd_args;
692 struct close_args /* {
693 int fd;
694 } */ c_args;
695 struct fcntl_args /* {
696 int fd;
697 int cmd;
698 long arg;
699 } */ f_args;
700 int error;
701
702 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
703 return (error);
704
705 bsd_args.s = linux_args.s;
706 bsd_args.name = (caddr_t)linux_args.addr;
707 bsd_args.anamelen = linux_args.namelen;
708 error = oaccept(td, &bsd_args);
709 if (error)
710 return (error);
711 if (linux_args.addr) {
712 error = linux_sa_put(linux_args.addr);
713 if (error) {
714 c_args.fd = td->td_retval[0];
715 (void)close(td, &c_args);
716 return (error);
717 }
718 }
719
720 /*
721 * linux appears not to copy flags from the parent socket to the
722 * accepted one, so we must clear the flags in the new descriptor.
723 * Ignore any errors, because we already have an open fd.
724 */
725 f_args.fd = td->td_retval[0];
726 f_args.cmd = F_SETFL;
727 f_args.arg = 0;
728 (void)fcntl(td, &f_args);
729 td->td_retval[0] = f_args.fd;
730 return (0);
731}
732
733struct linux_getsockname_args {
734 int s;
735 struct osockaddr *addr;
736 int *namelen;
737};
738
739static int
740linux_getsockname(struct thread *td, struct linux_getsockname_args *args)
741{
742 struct linux_getsockname_args linux_args;
743 struct getsockname_args /* {
744 int fdes;
745 caddr_t asa;
746 int *alen;
747 } */ bsd_args;
748 int error;
749
750 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
751 return (error);
752
753 bsd_args.fdes = linux_args.s;
754 bsd_args.asa = (caddr_t) linux_args.addr;
755 bsd_args.alen = linux_args.namelen;
756 error = ogetsockname(td, &bsd_args);
757 if (error)
758 return (error);
759 error = linux_sa_put(linux_args.addr);
760 if (error)
761 return (error);
762 return (0);
763}
764
765struct linux_getpeername_args {
766 int s;
767 struct osockaddr *addr;
768 int *namelen;
769};
770
771static int
772linux_getpeername(struct thread *td, struct linux_getpeername_args *args)
773{
774 struct linux_getpeername_args linux_args;
775 struct ogetpeername_args /* {
776 int fdes;
777 caddr_t asa;
778 int *alen;
779 } */ bsd_args;
780 int error;
781
782 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
783 return (error);
784
785 bsd_args.fdes = linux_args.s;
786 bsd_args.asa = (caddr_t) linux_args.addr;
787 bsd_args.alen = linux_args.namelen;
788 error = ogetpeername(td, &bsd_args);
789 if (error)
790 return (error);
791 error = linux_sa_put(linux_args.addr);
792 if (error)
793 return (error);
794 return (0);
795}
796
797struct linux_socketpair_args {
798 int domain;
799 int type;
800 int protocol;
801 int *rsv;
802};
803
804static int
805linux_socketpair(struct thread *td, struct linux_socketpair_args *args)
806{
807 struct linux_socketpair_args linux_args;
808 struct socketpair_args /* {
809 int domain;
810 int type;
811 int protocol;
812 int *rsv;
813 } */ bsd_args;
814 int error;
815
816 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
817 return (error);
818
819 bsd_args.domain = linux_to_bsd_domain(linux_args.domain);
820 if (bsd_args.domain == -1)
821 return (EINVAL);
822
823 bsd_args.type = linux_args.type;
824 bsd_args.protocol = linux_args.protocol;
825 bsd_args.rsv = linux_args.rsv;
826 return (socketpair(td, &bsd_args));
827}
828
829struct linux_send_args {
830 int s;
831 void *msg;
832 int len;
833 int flags;
834};
835
836static int
837linux_send(struct thread *td, struct linux_send_args *args)
838{
839 struct linux_send_args linux_args;
840 struct osend_args /* {
841 int s;
842 caddr_t buf;
843 int len;
844 int flags;
845 } */ bsd_args;
846 int error;
847
848 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
849 return (error);
850
851 bsd_args.s = linux_args.s;
852 bsd_args.buf = linux_args.msg;
853 bsd_args.len = linux_args.len;
854 bsd_args.flags = linux_args.flags;
855 return (osend(td, &bsd_args));
856}
857
858struct linux_recv_args {
859 int s;
860 void *msg;
861 int len;
862 int flags;
863};
864
865static int
866linux_recv(struct thread *td, struct linux_recv_args *args)
867{
868 struct linux_recv_args linux_args;
869 struct orecv_args /* {
870 int s;
871 caddr_t buf;
872 int len;
873 int flags;
874 } */ bsd_args;
875 int error;
876
877 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
878 return (error);
879
880 bsd_args.s = linux_args.s;
881 bsd_args.buf = linux_args.msg;
882 bsd_args.len = linux_args.len;
883 bsd_args.flags = linux_args.flags;
884 return (orecv(td, &bsd_args));
885}
886
887struct linux_sendto_args {
888 int s;
889 void *msg;
890 int len;
891 int flags;
892 caddr_t to;
893 int tolen;
894};
895
896static int
897linux_sendto(struct thread *td, struct linux_sendto_args *args)
898{
899 struct linux_sendto_args linux_args;
900 struct sendto_args /* {
901 int s;
902 caddr_t buf;
903 size_t len;
904 int flags;
905 caddr_t to;
906 int tolen;
907 } */ bsd_args;
908 caddr_t sg = stackgap_init();
909 struct sockaddr *to;
910 int tolen, error;
911
912 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
913 return (error);
914
915 tolen = linux_args.tolen;
916 if (linux_args.to) {
917 error = linux_sa_get(&sg, &to,
918 (struct osockaddr *) linux_args.to, &tolen);
919 if (error)
920 return (error);
921 } else
922 to = NULL;
923
924 bsd_args.s = linux_args.s;
925 bsd_args.buf = linux_args.msg;
926 bsd_args.len = linux_args.len;
927 bsd_args.flags = linux_args.flags;
928 bsd_args.to = (caddr_t) to;
929 bsd_args.tolen = (unsigned int) tolen;
930
931 if (linux_check_hdrincl(td, &sg, linux_args.s) == 0)
932 /* IP_HDRINCL set, tweak the packet before sending */
933 return (linux_sendto_hdrincl(td, &sg, &bsd_args));
934
935 return (sendto(td, &bsd_args));
936}
937
938struct linux_recvfrom_args {
939 int s;
940 void *buf;
941 int len;
942 int flags;
943 caddr_t from;
944 int *fromlen;
945};
946
947static int
948linux_recvfrom(struct thread *td, struct linux_recvfrom_args *args)
949{
950 struct linux_recvfrom_args linux_args;
951 struct recvfrom_args /* {
952 int s;
953 caddr_t buf;
954 size_t len;
955 int flags;
956 caddr_t from;
957 int *fromlenaddr;
958 } */ bsd_args;
959 int error;
960
961 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
962 return (error);
963
964 bsd_args.s = linux_args.s;
965 bsd_args.buf = linux_args.buf;
966 bsd_args.len = linux_args.len;
967 bsd_args.flags = linux_to_bsd_msg_flags(linux_args.flags);
968 bsd_args.from = linux_args.from;
969 bsd_args.fromlenaddr = linux_args.fromlen;
970 error = orecvfrom(td, &bsd_args);
971 if (error)
972 return (error);
973 if (linux_args.from) {
974 error = linux_sa_put((struct osockaddr *) linux_args.from);
975 if (error)
976 return (error);
977 }
978 return (0);
979}
980
981struct linux_sendmsg_args {
982 int s;
983 const struct msghdr *msg;
984 int flags;
985};
986
987static int
988linux_sendmsg(struct thread *td, struct linux_sendmsg_args *args)
989{
990 struct linux_sendmsg_args linux_args;
991 struct sendmsg_args /* {
992 int s;
993 const struct msghdr *msg;
994 int flags;
995 } */ bsd_args;
996 struct msghdr msg;
997 struct msghdr *nmsg = NULL;
998 int error;
999 int level;
1000 caddr_t control;
1001
1002 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1003 return (error);
1004
1005 error = copyin(linux_args.msg, &msg, sizeof(msg));
1006 if (error)
1007 return (error);
1008
1009 if (msg.msg_name) {
1010 struct sockaddr *sa;
1011 caddr_t sg = stackgap_init();
1012
1013 nmsg = (struct msghdr *) stackgap_alloc(&sg,
1014 sizeof(struct msghdr));
1015 if (!nmsg)
1016 return (ENOMEM);
1017
1018 error = linux_sa_get(&sg, &sa,
1019 (struct osockaddr *) msg.msg_name, &msg.msg_namelen);
1020 if (error)
1021 return (error);
1022
1023 msg.msg_name = (struct sockaddr *) sa;
1024 error = copyout(&msg, nmsg, sizeof(struct msghdr));
1025 if (error)
1026 return (error);
1027 }
1028
1029 error = copyin(&linux_args.msg->msg_control, &control,
1030 sizeof(caddr_t));
1031 if (error)
1032 return (error);
1033
1034 if (control == NULL)
1035 goto done;
1036
1037 error = copyin(&((struct cmsghdr*)control)->cmsg_level, &level,
1038 sizeof(int));
1039 if (error)
1040 return (error);
1041
1042 if (level == 1) {
1043 /*
1044 * Linux thinks that SOL_SOCKET is 1; we know
1045 * that it's really 0xffff, of course.
1046 */
1047 level = SOL_SOCKET;
1048 error = copyout(&level,
1049 &((struct cmsghdr *)control)->cmsg_level, sizeof(int));
1050 if (error)
1051 return (error);
1052 }
1053done:
1054 bsd_args.s = linux_args.s;
1055 bsd_args.msg = (caddr_t)nmsg;
1056 bsd_args.flags = linux_args.flags;
1057 return (sendmsg(td, &bsd_args));
1058}
1059
1060struct linux_recvmsg_args {
1061 int s;
1062 struct msghdr *msg;
1063 int flags;
1064};
1065
1066static int
1067linux_recvmsg(struct thread *td, struct linux_recvmsg_args *args)
1068{
1069 struct linux_recvmsg_args linux_args;
1070 struct recvmsg_args /* {
1071 int s;
1072 struct msghdr *msg;
1073 int flags;
1074 } */ bsd_args;
1075 struct msghdr msg;
1076 int error;
1077
1078 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1079 return (error);
1080
1081 bsd_args.s = linux_args.s;
1082 bsd_args.msg = linux_args.msg;
1083 bsd_args.flags = linux_to_bsd_msg_flags(linux_args.flags);
1084 error = recvmsg(td, &bsd_args);
1085 if (error)
1086 return (error);
1087
1088 error = copyin(linux_args.msg, &msg, sizeof(msg));
1089 if (error)
1090 return (error);
1091 if (msg.msg_name && msg.msg_namelen > 2)
1092 error = linux_sa_put(msg.msg_name);
1093 return (error);
1094}
1095
1096struct linux_shutdown_args {
1097 int s;
1098 int how;
1099};
1100
1101static int
1102linux_shutdown(struct thread *td, struct linux_shutdown_args *args)
1103{
1104 struct linux_shutdown_args linux_args;
1105 struct shutdown_args /* {
1106 int s;
1107 int how;
1108 } */ bsd_args;
1109 int error;
1110
1111 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1112 return (error);
1113
1114 bsd_args.s = linux_args.s;
1115 bsd_args.how = linux_args.how;
1116 return (shutdown(td, &bsd_args));
1117}
1118
1119struct linux_setsockopt_args {
1120 int s;
1121 int level;
1122 int optname;
1123 void *optval;
1124 int optlen;
1125};
1126
1127static int
1128linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args)
1129{
1130 struct linux_setsockopt_args linux_args;
1131 struct setsockopt_args /* {
1132 int s;
1133 int level;
1134 int name;
1135 caddr_t val;
1136 int valsize;
1137 } */ bsd_args;
1138 int error, name;
1139
1140 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1141 return (error);
1142
1143 bsd_args.s = linux_args.s;
1144 bsd_args.level = linux_to_bsd_sockopt_level(linux_args.level);
1145 switch (bsd_args.level) {
1146 case SOL_SOCKET:
1147 name = linux_to_bsd_so_sockopt(linux_args.optname);
1148 break;
1149 case IPPROTO_IP:
1150 name = linux_to_bsd_ip_sockopt(linux_args.optname);
1151 break;
1152 case IPPROTO_TCP:
1153 /* Linux TCP option values match BSD's */
1154 name = linux_args.optname;
1155 break;
1156 default:
1157 name = -1;
1158 break;
1159 }
1160 if (name == -1)
1161 return (EINVAL);
1162
1163 bsd_args.name = name;
1164 bsd_args.val = linux_args.optval;
1165 bsd_args.valsize = linux_args.optlen;
1166 return (setsockopt(td, &bsd_args));
1167}
1168
1169struct linux_getsockopt_args {
1170 int s;
1171 int level;
1172 int optname;
1173 void *optval;
1174 int *optlen;
1175};
1176
1177static int
1178linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args)
1179{
1180 struct linux_getsockopt_args linux_args;
1181 struct getsockopt_args /* {
1182 int s;
1183 int level;
1184 int name;
1185 caddr_t val;
1186 int *avalsize;
1187 } */ bsd_args;
1188 int error, name;
1189
1190 if ((error = copyin(args, &linux_args, sizeof(linux_args))))
1191 return (error);
1192
1193 bsd_args.s = linux_args.s;
1194 bsd_args.level = linux_to_bsd_sockopt_level(linux_args.level);
1195 switch (bsd_args.level) {
1196 case SOL_SOCKET:
1197 name = linux_to_bsd_so_sockopt(linux_args.optname);
1198 break;
1199 case IPPROTO_IP:
1200 name = linux_to_bsd_ip_sockopt(linux_args.optname);
1201 break;
1202 case IPPROTO_TCP:
1203 /* Linux TCP option values match BSD's */
1204 name = linux_args.optname;
1205 break;
1206 default:
1207 name = -1;
1208 break;
1209 }
1210 if (name == -1)
1211 return (EINVAL);
1212
1213 bsd_args.name = name;
1214 bsd_args.val = linux_args.optval;
1215 bsd_args.avalsize = linux_args.optlen;
1216 return (getsockopt(td, &bsd_args));
1217}
1218
1219int
1220linux_socketcall(struct thread *td, struct linux_socketcall_args *args)
1221{
1222 void *arg = (void *)args->args;
1223
1224 switch (args->what) {
1225 case LINUX_SOCKET:
1226 return (linux_socket(td, arg));
1227 case LINUX_BIND:
1228 return (linux_bind(td, arg));
1229 case LINUX_CONNECT:
1230 return (linux_connect(td, arg));
1231 case LINUX_LISTEN:
1232 return (linux_listen(td, arg));
1233 case LINUX_ACCEPT:
1234 return (linux_accept(td, arg));
1235 case LINUX_GETSOCKNAME:
1236 return (linux_getsockname(td, arg));
1237 case LINUX_GETPEERNAME:
1238 return (linux_getpeername(td, arg));
1239 case LINUX_SOCKETPAIR:
1240 return (linux_socketpair(td, arg));
1241 case LINUX_SEND:
1242 return (linux_send(td, arg));
1243 case LINUX_RECV:
1244 return (linux_recv(td, arg));
1245 case LINUX_SENDTO:
1246 return (linux_sendto(td, arg));
1247 case LINUX_RECVFROM:
1248 return (linux_recvfrom(td, arg));
1249 case LINUX_SHUTDOWN:
1250 return (linux_shutdown(td, arg));
1251 case LINUX_SETSOCKOPT:
1252 return (linux_setsockopt(td, arg));
1253 case LINUX_GETSOCKOPT:
1254 return (linux_getsockopt(td, arg));
1255 case LINUX_SENDMSG:
1256 return (linux_sendmsg(td, arg));
1257 case LINUX_RECVMSG:
1258 return (linux_recvmsg(td, arg));
1259 }
1260
1261 uprintf("LINUX: 'socket' typ=%d not implemented\n", args->what);
1262 return (ENOSYS);
1263}
1264#endif /*!__alpha__*/
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