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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1982, 1986, 1989, 1990 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | * | |
78ed81a3 | 33 | * from: @(#)uipc_syscalls.c 7.24 (Berkeley) 6/3/91 |
34 | * $Id$ | |
15637ed4 RG |
35 | */ |
36 | ||
37 | #include "param.h" | |
38 | #include "filedesc.h" | |
39 | #include "proc.h" | |
40 | #include "file.h" | |
41 | #include "buf.h" | |
42 | #include "malloc.h" | |
43 | #include "mbuf.h" | |
44 | #include "protosw.h" | |
45 | #include "socket.h" | |
46 | #include "socketvar.h" | |
47 | #ifdef KTRACE | |
48 | #include "ktrace.h" | |
49 | #endif | |
50 | ||
51 | /* | |
52 | * System call interface to the socket abstraction. | |
53 | */ | |
54 | ||
55 | extern struct fileops socketops; | |
56 | ||
78ed81a3 | 57 | struct socket_args { |
58 | int domain; | |
59 | int type; | |
60 | int protocol; | |
61 | }; | |
62 | ||
15637ed4 RG |
63 | socket(p, uap, retval) |
64 | struct proc *p; | |
78ed81a3 | 65 | register struct socket_args *uap; |
15637ed4 RG |
66 | int *retval; |
67 | { | |
68 | struct filedesc *fdp = p->p_fd; | |
69 | struct socket *so; | |
70 | struct file *fp; | |
71 | int fd, error; | |
72 | ||
73 | if (error = falloc(p, &fp, &fd)) | |
74 | return (error); | |
75 | fp->f_flag = FREAD|FWRITE; | |
76 | fp->f_type = DTYPE_SOCKET; | |
77 | fp->f_ops = &socketops; | |
78 | if (error = socreate(uap->domain, &so, uap->type, uap->protocol)) { | |
79 | fdp->fd_ofiles[fd] = 0; | |
80 | ffree(fp); | |
81 | } else { | |
82 | fp->f_data = (caddr_t)so; | |
83 | *retval = fd; | |
84 | } | |
85 | return (error); | |
86 | } | |
87 | ||
78ed81a3 | 88 | struct bind_args { |
89 | int s; | |
90 | caddr_t name; | |
91 | int namelen; | |
92 | }; | |
93 | ||
15637ed4 RG |
94 | /* ARGSUSED */ |
95 | bind(p, uap, retval) | |
96 | struct proc *p; | |
78ed81a3 | 97 | register struct bind_args *uap; |
15637ed4 RG |
98 | int *retval; |
99 | { | |
100 | struct file *fp; | |
101 | struct mbuf *nam; | |
102 | int error; | |
103 | ||
104 | if (error = getsock(p->p_fd, uap->s, &fp)) | |
105 | return (error); | |
106 | if (error = sockargs(&nam, uap->name, uap->namelen, MT_SONAME)) | |
107 | return (error); | |
108 | error = sobind((struct socket *)fp->f_data, nam); | |
109 | m_freem(nam); | |
110 | return (error); | |
111 | } | |
112 | ||
78ed81a3 | 113 | struct listen_args { |
114 | int s; | |
115 | int backlog; | |
116 | }; | |
117 | ||
15637ed4 RG |
118 | /* ARGSUSED */ |
119 | listen(p, uap, retval) | |
120 | struct proc *p; | |
78ed81a3 | 121 | register struct listen_args *uap; |
15637ed4 RG |
122 | int *retval; |
123 | { | |
124 | struct file *fp; | |
125 | int error; | |
126 | ||
127 | if (error = getsock(p->p_fd, uap->s, &fp)) | |
128 | return (error); | |
129 | return (solisten((struct socket *)fp->f_data, uap->backlog)); | |
130 | } | |
131 | ||
132 | #ifdef COMPAT_43 | |
78ed81a3 | 133 | |
134 | struct accept_args { | |
135 | int s; | |
136 | caddr_t name; | |
137 | int *anamelen; | |
138 | int compat_43; | |
139 | }; | |
140 | ||
15637ed4 RG |
141 | accept(p, uap, retval) |
142 | struct proc *p; | |
78ed81a3 | 143 | struct accept_args *uap; |
15637ed4 RG |
144 | int *retval; |
145 | { | |
146 | ||
147 | uap->compat_43 = 0; | |
148 | return (accept1(p, uap, retval)); | |
149 | } | |
150 | ||
78ed81a3 | 151 | struct oaccept_args { |
152 | int s; | |
153 | caddr_t name; | |
154 | int *anamelen; | |
155 | int compat_43; | |
156 | }; | |
157 | ||
15637ed4 RG |
158 | oaccept(p, uap, retval) |
159 | struct proc *p; | |
78ed81a3 | 160 | struct oaccept_args *uap; |
15637ed4 RG |
161 | int *retval; |
162 | { | |
163 | ||
164 | uap->compat_43 = 1; | |
165 | return (accept1(p, uap, retval)); | |
166 | } | |
167 | #else /* COMPAT_43 */ | |
168 | ||
169 | #define accept1 accept | |
170 | #endif | |
171 | ||
78ed81a3 | 172 | struct accept1_args { |
173 | int s; | |
174 | caddr_t name; | |
175 | int *anamelen; | |
15637ed4 | 176 | #ifdef COMPAT_43 |
78ed81a3 | 177 | int compat_43; |
15637ed4 | 178 | #endif |
78ed81a3 | 179 | }; |
180 | ||
181 | accept1(p, uap, retval) | |
182 | struct proc *p; | |
183 | register struct accept1_args *uap; | |
15637ed4 RG |
184 | int *retval; |
185 | { | |
186 | struct file *fp; | |
187 | struct mbuf *nam; | |
188 | int namelen, error, s; | |
189 | register struct socket *so; | |
190 | ||
191 | if (uap->name && (error = copyin((caddr_t)uap->anamelen, | |
192 | (caddr_t)&namelen, sizeof (namelen)))) | |
193 | return (error); | |
194 | if (error = getsock(p->p_fd, uap->s, &fp)) | |
195 | return (error); | |
196 | s = splnet(); | |
197 | so = (struct socket *)fp->f_data; | |
198 | if ((so->so_options & SO_ACCEPTCONN) == 0) { | |
199 | splx(s); | |
200 | return (EINVAL); | |
201 | } | |
202 | if ((so->so_state & SS_NBIO) && so->so_qlen == 0) { | |
203 | splx(s); | |
204 | return (EWOULDBLOCK); | |
205 | } | |
206 | while (so->so_qlen == 0 && so->so_error == 0) { | |
207 | if (so->so_state & SS_CANTRCVMORE) { | |
208 | so->so_error = ECONNABORTED; | |
209 | break; | |
210 | } | |
211 | if (error = tsleep((caddr_t)&so->so_timeo, PSOCK | PCATCH, | |
212 | netcon, 0)) { | |
213 | splx(s); | |
214 | return (error); | |
215 | } | |
216 | } | |
217 | if (so->so_error) { | |
218 | error = so->so_error; | |
219 | so->so_error = 0; | |
220 | splx(s); | |
221 | return (error); | |
222 | } | |
223 | if (error = falloc(p, &fp, retval)) { | |
224 | splx(s); | |
225 | return (error); | |
226 | } | |
227 | { struct socket *aso = so->so_q; | |
228 | if (soqremque(aso, 1) == 0) | |
229 | panic("accept"); | |
230 | so = aso; | |
231 | } | |
232 | fp->f_type = DTYPE_SOCKET; | |
233 | fp->f_flag = FREAD|FWRITE; | |
234 | fp->f_ops = &socketops; | |
235 | fp->f_data = (caddr_t)so; | |
236 | nam = m_get(M_WAIT, MT_SONAME); | |
237 | (void) soaccept(so, nam); | |
238 | if (uap->name) { | |
239 | #ifdef COMPAT_43 | |
240 | if (uap->compat_43) | |
241 | mtod(nam, struct osockaddr *)->sa_family = | |
242 | mtod(nam, struct sockaddr *)->sa_family; | |
243 | #endif | |
244 | if (namelen > nam->m_len) | |
245 | namelen = nam->m_len; | |
246 | /* SHOULD COPY OUT A CHAIN HERE */ | |
247 | if ((error = copyout(mtod(nam, caddr_t), (caddr_t)uap->name, | |
248 | (u_int)namelen)) == 0) | |
249 | error = copyout((caddr_t)&namelen, | |
250 | (caddr_t)uap->anamelen, sizeof (*uap->anamelen)); | |
251 | } | |
252 | m_freem(nam); | |
253 | splx(s); | |
254 | return (error); | |
255 | } | |
256 | ||
78ed81a3 | 257 | struct connect_args { |
258 | int s; | |
259 | caddr_t name; | |
260 | int namelen; | |
261 | }; | |
262 | ||
15637ed4 RG |
263 | /* ARGSUSED */ |
264 | connect(p, uap, retval) | |
265 | struct proc *p; | |
78ed81a3 | 266 | register struct connect_args *uap; |
15637ed4 RG |
267 | int *retval; |
268 | { | |
269 | struct file *fp; | |
270 | register struct socket *so; | |
271 | struct mbuf *nam; | |
272 | int error, s; | |
273 | ||
274 | if (error = getsock(p->p_fd, uap->s, &fp)) | |
275 | return (error); | |
276 | so = (struct socket *)fp->f_data; | |
277 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) | |
278 | return (EALREADY); | |
279 | if (error = sockargs(&nam, uap->name, uap->namelen, MT_SONAME)) | |
280 | return (error); | |
281 | error = soconnect(so, nam); | |
282 | if (error) | |
283 | goto bad; | |
284 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { | |
285 | m_freem(nam); | |
286 | return (EINPROGRESS); | |
287 | } | |
288 | s = splnet(); | |
289 | while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) | |
290 | if (error = tsleep((caddr_t)&so->so_timeo, PSOCK | PCATCH, | |
291 | netcon, 0)) | |
292 | break; | |
293 | if (error == 0) { | |
294 | error = so->so_error; | |
295 | so->so_error = 0; | |
296 | } | |
297 | splx(s); | |
298 | bad: | |
299 | so->so_state &= ~SS_ISCONNECTING; | |
300 | m_freem(nam); | |
301 | if (error == ERESTART) | |
302 | error = EINTR; | |
303 | return (error); | |
304 | } | |
305 | ||
78ed81a3 | 306 | struct socketpair_args { |
307 | int domain; | |
308 | int type; | |
309 | int protocol; | |
310 | int *rsv; | |
311 | }; | |
312 | ||
15637ed4 RG |
313 | socketpair(p, uap, retval) |
314 | struct proc *p; | |
78ed81a3 | 315 | register struct socketpair_args *uap; |
15637ed4 RG |
316 | int retval[]; |
317 | { | |
318 | register struct filedesc *fdp = p->p_fd; | |
319 | struct file *fp1, *fp2; | |
320 | struct socket *so1, *so2; | |
321 | int fd, error, sv[2]; | |
322 | ||
323 | if (error = socreate(uap->domain, &so1, uap->type, uap->protocol)) | |
324 | return (error); | |
325 | if (error = socreate(uap->domain, &so2, uap->type, uap->protocol)) | |
326 | goto free1; | |
327 | if (error = falloc(p, &fp1, &fd)) | |
328 | goto free2; | |
329 | sv[0] = fd; | |
330 | fp1->f_flag = FREAD|FWRITE; | |
331 | fp1->f_type = DTYPE_SOCKET; | |
332 | fp1->f_ops = &socketops; | |
333 | fp1->f_data = (caddr_t)so1; | |
334 | if (error = falloc(p, &fp2, &fd)) | |
335 | goto free3; | |
336 | fp2->f_flag = FREAD|FWRITE; | |
337 | fp2->f_type = DTYPE_SOCKET; | |
338 | fp2->f_ops = &socketops; | |
339 | fp2->f_data = (caddr_t)so2; | |
340 | sv[1] = fd; | |
341 | if (error = soconnect2(so1, so2)) | |
342 | goto free4; | |
343 | if (uap->type == SOCK_DGRAM) { | |
344 | /* | |
345 | * Datagram socket connection is asymmetric. | |
346 | */ | |
347 | if (error = soconnect2(so2, so1)) | |
348 | goto free4; | |
349 | } | |
350 | error = copyout((caddr_t)sv, (caddr_t)uap->rsv, 2 * sizeof (int)); | |
351 | retval[0] = sv[0]; /* XXX ??? */ | |
352 | retval[1] = sv[1]; /* XXX ??? */ | |
353 | return (error); | |
354 | free4: | |
355 | ffree(fp2); | |
356 | fdp->fd_ofiles[sv[1]] = 0; | |
357 | free3: | |
358 | ffree(fp1); | |
359 | fdp->fd_ofiles[sv[0]] = 0; | |
360 | free2: | |
361 | (void)soclose(so2); | |
362 | free1: | |
363 | (void)soclose(so1); | |
364 | return (error); | |
365 | } | |
366 | ||
78ed81a3 | 367 | struct sendto_args { |
368 | int s; | |
369 | caddr_t buf; | |
370 | int len; | |
371 | int flags; | |
372 | caddr_t to; | |
373 | int tolen; | |
374 | }; | |
375 | ||
15637ed4 RG |
376 | sendto(p, uap, retval) |
377 | struct proc *p; | |
78ed81a3 | 378 | register struct sendto_args *uap; |
15637ed4 RG |
379 | int *retval; |
380 | { | |
381 | struct msghdr msg; | |
382 | struct iovec aiov; | |
383 | int error; | |
384 | ||
385 | msg.msg_name = uap->to; | |
386 | msg.msg_namelen = uap->tolen; | |
387 | msg.msg_iov = &aiov; | |
388 | msg.msg_iovlen = 1; | |
389 | msg.msg_control = 0; | |
390 | #ifdef COMPAT_43 | |
391 | msg.msg_flags = 0; | |
392 | #endif | |
393 | aiov.iov_base = uap->buf; | |
394 | aiov.iov_len = uap->len; | |
395 | return (sendit(p, uap->s, &msg, uap->flags, retval)); | |
396 | } | |
397 | ||
398 | #ifdef COMPAT_43 | |
78ed81a3 | 399 | |
400 | struct osend_args { | |
401 | int s; | |
402 | caddr_t buf; | |
403 | int len; | |
404 | int flags; | |
405 | }; | |
406 | ||
15637ed4 RG |
407 | osend(p, uap, retval) |
408 | struct proc *p; | |
78ed81a3 | 409 | register struct osend_args *uap; |
15637ed4 RG |
410 | int *retval; |
411 | { | |
412 | struct msghdr msg; | |
413 | struct iovec aiov; | |
414 | ||
415 | msg.msg_name = 0; | |
416 | msg.msg_namelen = 0; | |
417 | msg.msg_iov = &aiov; | |
418 | msg.msg_iovlen = 1; | |
419 | aiov.iov_base = uap->buf; | |
420 | aiov.iov_len = uap->len; | |
421 | msg.msg_control = 0; | |
422 | msg.msg_flags = 0; | |
423 | return (sendit(p, uap->s, &msg, uap->flags, retval)); | |
424 | } | |
425 | ||
426 | #define MSG_COMPAT 0x8000 | |
78ed81a3 | 427 | |
428 | struct osendmsg_args { | |
429 | int s; | |
430 | caddr_t msg; | |
431 | int flags; | |
432 | }; | |
433 | ||
15637ed4 RG |
434 | osendmsg(p, uap, retval) |
435 | struct proc *p; | |
78ed81a3 | 436 | register struct osendmsg_args *uap; |
15637ed4 RG |
437 | int *retval; |
438 | { | |
439 | struct msghdr msg; | |
440 | struct iovec aiov[UIO_SMALLIOV], *iov; | |
441 | int error; | |
442 | ||
443 | if (error = copyin(uap->msg, (caddr_t)&msg, sizeof (struct omsghdr))) | |
444 | return (error); | |
445 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { | |
446 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
447 | return (EMSGSIZE); | |
448 | MALLOC(iov, struct iovec *, | |
449 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
450 | M_WAITOK); | |
451 | } else | |
452 | iov = aiov; | |
453 | if (error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, | |
454 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec)))) | |
455 | goto done; | |
456 | msg.msg_flags = MSG_COMPAT; | |
457 | msg.msg_iov = iov; | |
458 | error = sendit(p, uap->s, &msg, uap->flags, retval); | |
459 | done: | |
460 | if (iov != aiov) | |
461 | FREE(iov, M_IOV); | |
462 | return (error); | |
463 | } | |
464 | #endif | |
465 | ||
78ed81a3 | 466 | struct sendmsg_args { |
467 | int s; | |
468 | caddr_t msg; | |
469 | int flags; | |
470 | }; | |
471 | ||
15637ed4 RG |
472 | sendmsg(p, uap, retval) |
473 | struct proc *p; | |
78ed81a3 | 474 | register struct sendmsg_args *uap; |
15637ed4 RG |
475 | int *retval; |
476 | { | |
477 | struct msghdr msg; | |
478 | struct iovec aiov[UIO_SMALLIOV], *iov; | |
479 | int error; | |
480 | ||
481 | if (error = copyin(uap->msg, (caddr_t)&msg, sizeof (msg))) | |
482 | return (error); | |
483 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { | |
484 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
485 | return (EMSGSIZE); | |
486 | MALLOC(iov, struct iovec *, | |
487 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
488 | M_WAITOK); | |
489 | } else | |
490 | iov = aiov; | |
491 | if (msg.msg_iovlen && | |
492 | (error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, | |
493 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec))))) | |
494 | goto done; | |
495 | msg.msg_iov = iov; | |
496 | #ifdef COMPAT_43 | |
497 | msg.msg_flags = 0; | |
498 | #endif | |
499 | error = sendit(p, uap->s, &msg, uap->flags, retval); | |
500 | done: | |
501 | if (iov != aiov) | |
502 | FREE(iov, M_IOV); | |
503 | return (error); | |
504 | } | |
505 | ||
506 | sendit(p, s, mp, flags, retsize) | |
507 | register struct proc *p; | |
508 | int s; | |
509 | register struct msghdr *mp; | |
510 | int flags, *retsize; | |
511 | { | |
512 | struct file *fp; | |
513 | struct uio auio; | |
514 | register struct iovec *iov; | |
515 | register int i; | |
516 | struct mbuf *to, *control; | |
517 | int len, error; | |
518 | #ifdef KTRACE | |
519 | struct iovec *ktriov = NULL; | |
520 | #endif | |
521 | ||
522 | if (error = getsock(p->p_fd, s, &fp)) | |
523 | return (error); | |
524 | auio.uio_iov = mp->msg_iov; | |
525 | auio.uio_iovcnt = mp->msg_iovlen; | |
526 | auio.uio_segflg = UIO_USERSPACE; | |
527 | auio.uio_rw = UIO_WRITE; | |
528 | auio.uio_procp = p; | |
529 | auio.uio_offset = 0; /* XXX */ | |
530 | auio.uio_resid = 0; | |
531 | iov = mp->msg_iov; | |
532 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { | |
533 | if (iov->iov_len < 0) | |
534 | return (EINVAL); | |
535 | if ((auio.uio_resid += iov->iov_len) < 0) | |
536 | return (EINVAL); | |
537 | } | |
538 | if (mp->msg_name) { | |
539 | if (error = sockargs(&to, mp->msg_name, mp->msg_namelen, | |
540 | MT_SONAME)) | |
541 | return (error); | |
542 | } else | |
543 | to = 0; | |
544 | if (mp->msg_control) { | |
545 | if (mp->msg_controllen < sizeof(struct cmsghdr) | |
546 | #ifdef COMPAT_43 | |
547 | && mp->msg_flags != MSG_COMPAT | |
548 | #endif | |
549 | ) { | |
550 | error = EINVAL; | |
551 | goto bad; | |
552 | } | |
553 | if (error = sockargs(&control, mp->msg_control, | |
554 | mp->msg_controllen, MT_CONTROL)) | |
555 | goto bad; | |
556 | #ifdef COMPAT_43 | |
557 | if (mp->msg_flags == MSG_COMPAT) { | |
558 | register struct cmsghdr *cm; | |
559 | ||
560 | M_PREPEND(control, sizeof(*cm), M_WAIT); | |
561 | if (control == 0) { | |
562 | error = ENOBUFS; | |
563 | goto bad; | |
564 | } else { | |
565 | cm = mtod(control, struct cmsghdr *); | |
566 | cm->cmsg_len = control->m_len; | |
567 | cm->cmsg_level = SOL_SOCKET; | |
568 | cm->cmsg_type = SCM_RIGHTS; | |
569 | } | |
570 | } | |
571 | #endif | |
572 | } else | |
573 | control = 0; | |
574 | #ifdef KTRACE | |
575 | if (KTRPOINT(p, KTR_GENIO)) { | |
576 | int iovlen = auio.uio_iovcnt * sizeof (struct iovec); | |
577 | ||
578 | MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); | |
579 | bcopy((caddr_t)auio.uio_iov, (caddr_t)ktriov, iovlen); | |
580 | } | |
581 | #endif | |
582 | len = auio.uio_resid; | |
583 | if (error = sosend((struct socket *)fp->f_data, to, &auio, | |
584 | (struct mbuf *)0, control, flags)) { | |
585 | if (auio.uio_resid != len && (error == ERESTART || | |
586 | error == EINTR || error == EWOULDBLOCK)) | |
587 | error = 0; | |
588 | if (error == EPIPE) | |
589 | psignal(p, SIGPIPE); | |
590 | } | |
591 | if (error == 0) | |
592 | *retsize = len - auio.uio_resid; | |
593 | #ifdef KTRACE | |
594 | if (ktriov != NULL) { | |
595 | if (error == 0) | |
596 | ktrgenio(p->p_tracep, s, UIO_WRITE, | |
597 | ktriov, *retsize, error); | |
598 | FREE(ktriov, M_TEMP); | |
599 | } | |
600 | #endif | |
601 | bad: | |
602 | if (to) | |
603 | m_freem(to); | |
604 | return (error); | |
605 | } | |
606 | ||
607 | #ifdef COMPAT_43 | |
78ed81a3 | 608 | |
609 | struct orecvfrom_args { | |
610 | int s; | |
611 | caddr_t buf; | |
612 | int len; | |
613 | int flags; | |
614 | caddr_t from; | |
615 | int *fromlenaddr; | |
616 | }; | |
617 | ||
15637ed4 RG |
618 | orecvfrom(p, uap, retval) |
619 | struct proc *p; | |
78ed81a3 | 620 | struct orecvfrom_args *uap; |
15637ed4 RG |
621 | int *retval; |
622 | { | |
623 | ||
624 | uap->flags |= MSG_COMPAT; | |
625 | return (recvfrom(p, uap, retval)); | |
626 | } | |
627 | #endif | |
628 | ||
78ed81a3 | 629 | struct recvfrom_args { |
630 | int s; | |
631 | caddr_t buf; | |
632 | int len; | |
633 | int flags; | |
634 | caddr_t from; | |
635 | int *fromlenaddr; | |
636 | }; | |
637 | ||
15637ed4 RG |
638 | recvfrom(p, uap, retval) |
639 | struct proc *p; | |
78ed81a3 | 640 | register struct recvfrom_args *uap; |
15637ed4 RG |
641 | int *retval; |
642 | { | |
643 | struct msghdr msg; | |
644 | struct iovec aiov; | |
645 | int error; | |
646 | ||
647 | if (uap->fromlenaddr) { | |
648 | if (error = copyin((caddr_t)uap->fromlenaddr, | |
649 | (caddr_t)&msg.msg_namelen, sizeof (msg.msg_namelen))) | |
650 | return (error); | |
651 | } else | |
652 | msg.msg_namelen = 0; | |
653 | msg.msg_name = uap->from; | |
654 | msg.msg_iov = &aiov; | |
655 | msg.msg_iovlen = 1; | |
656 | aiov.iov_base = uap->buf; | |
657 | aiov.iov_len = uap->len; | |
658 | msg.msg_control = 0; | |
659 | msg.msg_flags = uap->flags; | |
660 | return (recvit(p, uap->s, &msg, (caddr_t)uap->fromlenaddr, retval)); | |
661 | } | |
662 | ||
663 | #ifdef COMPAT_43 | |
78ed81a3 | 664 | |
665 | struct orecv_args { | |
666 | int s; | |
667 | caddr_t buf; | |
668 | int len; | |
669 | int flags; | |
670 | }; | |
671 | ||
15637ed4 RG |
672 | orecv(p, uap, retval) |
673 | struct proc *p; | |
78ed81a3 | 674 | register struct orecv_args *uap; |
15637ed4 RG |
675 | int *retval; |
676 | { | |
677 | struct msghdr msg; | |
678 | struct iovec aiov; | |
679 | ||
680 | msg.msg_name = 0; | |
681 | msg.msg_namelen = 0; | |
682 | msg.msg_iov = &aiov; | |
683 | msg.msg_iovlen = 1; | |
684 | aiov.iov_base = uap->buf; | |
685 | aiov.iov_len = uap->len; | |
686 | msg.msg_control = 0; | |
687 | msg.msg_flags = uap->flags; | |
688 | return (recvit(p, uap->s, &msg, (caddr_t)0, retval)); | |
689 | } | |
690 | ||
691 | /* | |
692 | * Old recvmsg. This code takes advantage of the fact that the old msghdr | |
693 | * overlays the new one, missing only the flags, and with the (old) access | |
694 | * rights where the control fields are now. | |
695 | */ | |
78ed81a3 | 696 | |
697 | struct orecvmsg_args { | |
698 | int s; | |
699 | struct omsghdr *msg; | |
700 | int flags; | |
701 | }; | |
702 | ||
15637ed4 RG |
703 | orecvmsg(p, uap, retval) |
704 | struct proc *p; | |
78ed81a3 | 705 | register struct orecvmsg_args *uap; |
15637ed4 RG |
706 | int *retval; |
707 | { | |
708 | struct msghdr msg; | |
709 | struct iovec aiov[UIO_SMALLIOV], *iov; | |
710 | int error; | |
711 | ||
712 | if (error = copyin((caddr_t)uap->msg, (caddr_t)&msg, | |
713 | sizeof (struct omsghdr))) | |
714 | return (error); | |
715 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { | |
716 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
717 | return (EMSGSIZE); | |
718 | MALLOC(iov, struct iovec *, | |
719 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
720 | M_WAITOK); | |
721 | } else | |
722 | iov = aiov; | |
723 | msg.msg_flags = uap->flags | MSG_COMPAT; | |
724 | if (error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, | |
725 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec)))) | |
726 | goto done; | |
727 | msg.msg_iov = iov; | |
728 | error = recvit(p, uap->s, &msg, (caddr_t)&uap->msg->msg_namelen, retval); | |
729 | ||
730 | if (msg.msg_controllen && error == 0) | |
731 | error = copyout((caddr_t)&msg.msg_controllen, | |
732 | (caddr_t)&uap->msg->msg_accrightslen, sizeof (int)); | |
733 | done: | |
734 | if (iov != aiov) | |
735 | FREE(iov, M_IOV); | |
736 | return (error); | |
737 | } | |
738 | #endif | |
739 | ||
78ed81a3 | 740 | struct recvmsg_args { |
741 | int s; | |
742 | struct msghdr *msg; | |
743 | int flags; | |
744 | }; | |
745 | ||
15637ed4 RG |
746 | recvmsg(p, uap, retval) |
747 | struct proc *p; | |
78ed81a3 | 748 | register struct recvmsg_args *uap; |
15637ed4 RG |
749 | int *retval; |
750 | { | |
751 | struct msghdr msg; | |
752 | struct iovec aiov[UIO_SMALLIOV], *uiov, *iov; | |
753 | register int error; | |
754 | ||
755 | if (error = copyin((caddr_t)uap->msg, (caddr_t)&msg, sizeof (msg))) | |
756 | return (error); | |
757 | if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { | |
758 | if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) | |
759 | return (EMSGSIZE); | |
760 | MALLOC(iov, struct iovec *, | |
761 | sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, | |
762 | M_WAITOK); | |
763 | } else | |
764 | iov = aiov; | |
765 | #ifdef COMPAT_43 | |
766 | msg.msg_flags = uap->flags &~ MSG_COMPAT; | |
767 | #else | |
768 | msg.msg_flags = uap->flags; | |
769 | #endif | |
770 | uiov = msg.msg_iov; | |
771 | msg.msg_iov = iov; | |
772 | if (error = copyin((caddr_t)uiov, (caddr_t)iov, | |
773 | (unsigned)(msg.msg_iovlen * sizeof (struct iovec)))) | |
774 | goto done; | |
775 | if ((error = recvit(p, uap->s, &msg, (caddr_t)0, retval)) == 0) { | |
776 | msg.msg_iov = uiov; | |
777 | error = copyout((caddr_t)&msg, (caddr_t)uap->msg, sizeof(msg)); | |
778 | } | |
779 | done: | |
780 | if (iov != aiov) | |
781 | FREE(iov, M_IOV); | |
782 | return (error); | |
783 | } | |
784 | ||
785 | recvit(p, s, mp, namelenp, retsize) | |
786 | register struct proc *p; | |
787 | int s; | |
788 | register struct msghdr *mp; | |
789 | caddr_t namelenp; | |
790 | int *retsize; | |
791 | { | |
792 | struct file *fp; | |
793 | struct uio auio; | |
794 | register struct iovec *iov; | |
795 | register int i; | |
796 | int len, error; | |
797 | struct mbuf *from = 0, *control = 0; | |
798 | #ifdef KTRACE | |
799 | struct iovec *ktriov = NULL; | |
800 | #endif | |
801 | ||
802 | if (error = getsock(p->p_fd, s, &fp)) | |
803 | return (error); | |
804 | auio.uio_iov = mp->msg_iov; | |
805 | auio.uio_iovcnt = mp->msg_iovlen; | |
806 | auio.uio_segflg = UIO_USERSPACE; | |
807 | auio.uio_rw = UIO_READ; | |
808 | auio.uio_procp = p; | |
809 | auio.uio_offset = 0; /* XXX */ | |
810 | auio.uio_resid = 0; | |
811 | iov = mp->msg_iov; | |
812 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { | |
813 | if (iov->iov_len < 0) | |
814 | return (EINVAL); | |
815 | if ((auio.uio_resid += iov->iov_len) < 0) | |
816 | return (EINVAL); | |
817 | } | |
818 | #ifdef KTRACE | |
819 | if (KTRPOINT(p, KTR_GENIO)) { | |
820 | int iovlen = auio.uio_iovcnt * sizeof (struct iovec); | |
821 | ||
822 | MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); | |
823 | bcopy((caddr_t)auio.uio_iov, (caddr_t)ktriov, iovlen); | |
824 | } | |
825 | #endif | |
826 | len = auio.uio_resid; | |
827 | if (error = soreceive((struct socket *)fp->f_data, &from, &auio, | |
78ed81a3 | 828 | (struct mbuf **)0, mp->msg_control ? &control : (struct mbuf **)0, |
829 | &mp->msg_flags)) { | |
15637ed4 RG |
830 | if (auio.uio_resid != len && (error == ERESTART || |
831 | error == EINTR || error == EWOULDBLOCK)) | |
832 | error = 0; | |
833 | } | |
834 | #ifdef KTRACE | |
835 | if (ktriov != NULL) { | |
836 | if (error == 0) | |
837 | ktrgenio(p->p_tracep, s, UIO_READ, | |
838 | ktriov, len - auio.uio_resid, error); | |
839 | FREE(ktriov, M_TEMP); | |
840 | } | |
841 | #endif | |
842 | if (error) | |
843 | goto out; | |
844 | *retsize = len - auio.uio_resid; | |
845 | if (mp->msg_name) { | |
846 | len = mp->msg_namelen; | |
847 | if (len <= 0 || from == 0) | |
848 | len = 0; | |
849 | else { | |
850 | #ifdef COMPAT_43 | |
851 | if (mp->msg_flags & MSG_COMPAT) | |
852 | mtod(from, struct osockaddr *)->sa_family = | |
853 | mtod(from, struct sockaddr *)->sa_family; | |
854 | #endif | |
855 | if (len > from->m_len) | |
856 | len = from->m_len; | |
857 | /* else if len < from->m_len ??? */ | |
858 | if (error = copyout(mtod(from, caddr_t), | |
859 | (caddr_t)mp->msg_name, (unsigned)len)) | |
860 | goto out; | |
861 | } | |
862 | mp->msg_namelen = len; | |
863 | if (namelenp && | |
864 | (error = copyout((caddr_t)&len, namelenp, sizeof (int)))) { | |
865 | #ifdef COMPAT_43 | |
866 | if (mp->msg_flags & MSG_COMPAT) | |
867 | error = 0; /* old recvfrom didn't check */ | |
868 | else | |
869 | #endif | |
870 | goto out; | |
871 | } | |
872 | } | |
873 | if (mp->msg_control) { | |
874 | #ifdef COMPAT_43 | |
875 | /* | |
876 | * We assume that old recvmsg calls won't receive access | |
877 | * rights and other control info, esp. as control info | |
878 | * is always optional and those options didn't exist in 4.3. | |
879 | * If we receive rights, trim the cmsghdr; anything else | |
880 | * is tossed. | |
881 | */ | |
882 | if (control && mp->msg_flags & MSG_COMPAT) { | |
883 | if (mtod(control, struct cmsghdr *)->cmsg_level != | |
884 | SOL_SOCKET || | |
885 | mtod(control, struct cmsghdr *)->cmsg_type != | |
886 | SCM_RIGHTS) { | |
887 | mp->msg_controllen = 0; | |
888 | goto out; | |
889 | } | |
890 | control->m_len -= sizeof (struct cmsghdr); | |
891 | control->m_data += sizeof (struct cmsghdr); | |
892 | } | |
893 | #endif | |
894 | len = mp->msg_controllen; | |
895 | if (len <= 0 || control == 0) | |
896 | len = 0; | |
897 | else { | |
898 | if (len >= control->m_len) | |
899 | len = control->m_len; | |
900 | else | |
901 | mp->msg_flags |= MSG_CTRUNC; | |
902 | error = copyout((caddr_t)mtod(control, caddr_t), | |
903 | (caddr_t)mp->msg_control, (unsigned)len); | |
904 | } | |
905 | mp->msg_controllen = len; | |
906 | } | |
907 | out: | |
908 | if (from) | |
909 | m_freem(from); | |
910 | if (control) | |
911 | m_freem(control); | |
912 | return (error); | |
913 | } | |
914 | ||
78ed81a3 | 915 | struct shutdown_args { |
916 | int s; | |
917 | int how; | |
918 | }; | |
919 | ||
15637ed4 RG |
920 | /* ARGSUSED */ |
921 | shutdown(p, uap, retval) | |
922 | struct proc *p; | |
78ed81a3 | 923 | register struct shutdown_args *uap; |
15637ed4 RG |
924 | int *retval; |
925 | { | |
926 | struct file *fp; | |
927 | int error; | |
928 | ||
929 | if (error = getsock(p->p_fd, uap->s, &fp)) | |
930 | return (error); | |
931 | return (soshutdown((struct socket *)fp->f_data, uap->how)); | |
932 | } | |
933 | ||
78ed81a3 | 934 | struct setsocketopt_args { |
935 | int s; | |
936 | int level; | |
937 | int name; | |
938 | caddr_t val; | |
939 | int valsize; | |
940 | }; | |
941 | ||
15637ed4 RG |
942 | /* ARGSUSED */ |
943 | setsockopt(p, uap, retval) | |
944 | struct proc *p; | |
78ed81a3 | 945 | register struct setsocketopt_args *uap; |
15637ed4 RG |
946 | int *retval; |
947 | { | |
948 | struct file *fp; | |
949 | struct mbuf *m = NULL; | |
950 | int error; | |
951 | ||
952 | if (error = getsock(p->p_fd, uap->s, &fp)) | |
953 | return (error); | |
954 | if (uap->valsize > MLEN) | |
955 | return (EINVAL); | |
956 | if (uap->val) { | |
957 | m = m_get(M_WAIT, MT_SOOPTS); | |
958 | if (m == NULL) | |
959 | return (ENOBUFS); | |
960 | if (error = copyin(uap->val, mtod(m, caddr_t), | |
961 | (u_int)uap->valsize)) { | |
962 | (void) m_free(m); | |
963 | return (error); | |
964 | } | |
965 | m->m_len = uap->valsize; | |
966 | } | |
967 | return (sosetopt((struct socket *)fp->f_data, uap->level, | |
968 | uap->name, m)); | |
969 | } | |
970 | ||
78ed81a3 | 971 | struct getsockopt_args { |
972 | int s; | |
973 | int level; | |
974 | int name; | |
975 | caddr_t val; | |
976 | int *avalsize; | |
977 | }; | |
978 | ||
15637ed4 RG |
979 | /* ARGSUSED */ |
980 | getsockopt(p, uap, retval) | |
981 | struct proc *p; | |
78ed81a3 | 982 | register struct getsockopt_args *uap; |
15637ed4 RG |
983 | int *retval; |
984 | { | |
985 | struct file *fp; | |
986 | struct mbuf *m = NULL; | |
987 | int valsize, error; | |
988 | ||
989 | if (error = getsock(p->p_fd, uap->s, &fp)) | |
990 | return (error); | |
991 | if (uap->val) { | |
992 | if (error = copyin((caddr_t)uap->avalsize, (caddr_t)&valsize, | |
993 | sizeof (valsize))) | |
994 | return (error); | |
995 | } else | |
996 | valsize = 0; | |
997 | if ((error = sogetopt((struct socket *)fp->f_data, uap->level, | |
998 | uap->name, &m)) == 0 && uap->val && valsize && m != NULL) { | |
999 | if (valsize > m->m_len) | |
1000 | valsize = m->m_len; | |
1001 | error = copyout(mtod(m, caddr_t), uap->val, (u_int)valsize); | |
1002 | if (error == 0) | |
1003 | error = copyout((caddr_t)&valsize, | |
1004 | (caddr_t)uap->avalsize, sizeof (valsize)); | |
1005 | } | |
1006 | if (m != NULL) | |
1007 | (void) m_free(m); | |
1008 | return (error); | |
1009 | } | |
1010 | ||
1011 | /* ARGSUSED */ | |
1012 | pipe(p, uap, retval) | |
1013 | struct proc *p; | |
1014 | struct args *uap; | |
1015 | int retval[]; | |
1016 | { | |
1017 | register struct filedesc *fdp = p->p_fd; | |
1018 | struct file *rf, *wf; | |
1019 | struct socket *rso, *wso; | |
1020 | int fd, error; | |
1021 | ||
1022 | if (error = socreate(AF_UNIX, &rso, SOCK_STREAM, 0)) | |
1023 | return (error); | |
1024 | if (error = socreate(AF_UNIX, &wso, SOCK_STREAM, 0)) | |
1025 | goto free1; | |
1026 | if (error = falloc(p, &rf, &fd)) | |
1027 | goto free2; | |
1028 | retval[0] = fd; | |
1029 | rf->f_flag = FREAD; | |
1030 | rf->f_type = DTYPE_SOCKET; | |
1031 | rf->f_ops = &socketops; | |
1032 | rf->f_data = (caddr_t)rso; | |
1033 | if (error = falloc(p, &wf, &fd)) | |
1034 | goto free3; | |
1035 | wf->f_flag = FWRITE; | |
1036 | wf->f_type = DTYPE_SOCKET; | |
1037 | wf->f_ops = &socketops; | |
1038 | wf->f_data = (caddr_t)wso; | |
1039 | retval[1] = fd; | |
1040 | if (error = unp_connect2(wso, rso)) | |
1041 | goto free4; | |
1042 | return (0); | |
1043 | free4: | |
1044 | ffree(wf); | |
1045 | fdp->fd_ofiles[retval[1]] = 0; | |
1046 | free3: | |
1047 | ffree(rf); | |
1048 | fdp->fd_ofiles[retval[0]] = 0; | |
1049 | free2: | |
1050 | (void)soclose(wso); | |
1051 | free1: | |
1052 | (void)soclose(rso); | |
1053 | return (error); | |
1054 | } | |
1055 | ||
1056 | /* | |
1057 | * Get socket name. | |
1058 | */ | |
1059 | #ifdef COMPAT_43 | |
78ed81a3 | 1060 | |
1061 | struct getsockname_args { | |
1062 | int fdes; | |
1063 | caddr_t asa; | |
1064 | int *alen; | |
1065 | int compat_43; | |
1066 | }; | |
1067 | ||
15637ed4 RG |
1068 | getsockname(p, uap, retval) |
1069 | struct proc *p; | |
78ed81a3 | 1070 | struct getsockname_args *uap; |
15637ed4 RG |
1071 | int *retval; |
1072 | { | |
1073 | ||
1074 | uap->compat_43 = 0; | |
1075 | return (getsockname1(p, uap, retval)); | |
1076 | } | |
1077 | ||
78ed81a3 | 1078 | struct ogetsockname_args { |
1079 | int fdes; | |
1080 | caddr_t asa; | |
1081 | int *alen; | |
1082 | int compat_43; | |
1083 | }; | |
1084 | ||
15637ed4 RG |
1085 | ogetsockname(p, uap, retval) |
1086 | struct proc *p; | |
78ed81a3 | 1087 | struct ogetsockname_args *uap; |
15637ed4 RG |
1088 | int *retval; |
1089 | { | |
1090 | ||
1091 | uap->compat_43 = 1; | |
1092 | return (getsockname1(p, uap, retval)); | |
1093 | } | |
1094 | #else /* COMPAT_43 */ | |
1095 | ||
1096 | #define getsockname1 getsockname | |
1097 | #endif | |
1098 | ||
78ed81a3 | 1099 | struct getsockname1_args { |
1100 | int fdes; | |
1101 | caddr_t asa; | |
1102 | int *alen; | |
1103 | #ifdef COMPAT_43 | |
1104 | int compat_43; | |
1105 | #endif | |
1106 | }; | |
1107 | ||
15637ed4 RG |
1108 | /* ARGSUSED */ |
1109 | getsockname1(p, uap, retval) | |
1110 | struct proc *p; | |
78ed81a3 | 1111 | register struct getsockname1_args *uap; |
15637ed4 RG |
1112 | int *retval; |
1113 | { | |
1114 | struct file *fp; | |
1115 | register struct socket *so; | |
1116 | struct mbuf *m; | |
1117 | int len, error; | |
1118 | ||
1119 | if (error = getsock(p->p_fd, uap->fdes, &fp)) | |
1120 | return (error); | |
1121 | if (error = copyin((caddr_t)uap->alen, (caddr_t)&len, sizeof (len))) | |
1122 | return (error); | |
1123 | so = (struct socket *)fp->f_data; | |
1124 | m = m_getclr(M_WAIT, MT_SONAME); | |
1125 | if (m == NULL) | |
1126 | return (ENOBUFS); | |
1127 | if (error = (*so->so_proto->pr_usrreq)(so, PRU_SOCKADDR, 0, m, 0)) | |
1128 | goto bad; | |
1129 | if (len > m->m_len) | |
1130 | len = m->m_len; | |
1131 | #ifdef COMPAT_43 | |
1132 | if (uap->compat_43) | |
1133 | mtod(m, struct osockaddr *)->sa_family = | |
1134 | mtod(m, struct sockaddr *)->sa_family; | |
1135 | #endif | |
1136 | error = copyout(mtod(m, caddr_t), (caddr_t)uap->asa, (u_int)len); | |
1137 | if (error == 0) | |
1138 | error = copyout((caddr_t)&len, (caddr_t)uap->alen, | |
1139 | sizeof (len)); | |
1140 | bad: | |
1141 | m_freem(m); | |
1142 | return (error); | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | * Get name of peer for connected socket. | |
1147 | */ | |
1148 | #ifdef COMPAT_43 | |
78ed81a3 | 1149 | |
1150 | struct getpeername_args { | |
1151 | int fdes; | |
1152 | caddr_t asa; | |
1153 | int *alen; | |
1154 | int compat_43; | |
1155 | }; | |
1156 | ||
15637ed4 RG |
1157 | getpeername(p, uap, retval) |
1158 | struct proc *p; | |
78ed81a3 | 1159 | struct getpeername_args *uap; |
15637ed4 RG |
1160 | int *retval; |
1161 | { | |
1162 | ||
1163 | uap->compat_43 = 0; | |
1164 | return (getpeername1(p, uap, retval)); | |
1165 | } | |
1166 | ||
78ed81a3 | 1167 | struct ogetpeername_args { |
1168 | int fdes; | |
1169 | caddr_t asa; | |
1170 | int *alen; | |
1171 | int compat_43; | |
1172 | }; | |
1173 | ||
15637ed4 RG |
1174 | ogetpeername(p, uap, retval) |
1175 | struct proc *p; | |
78ed81a3 | 1176 | struct ogetpeername_args *uap; |
15637ed4 RG |
1177 | int *retval; |
1178 | { | |
1179 | ||
1180 | uap->compat_43 = 1; | |
1181 | return (getpeername1(p, uap, retval)); | |
1182 | } | |
1183 | #else /* COMPAT_43 */ | |
1184 | ||
1185 | #define getpeername1 getpeername | |
1186 | #endif | |
1187 | ||
78ed81a3 | 1188 | struct getpeername1_args { |
1189 | int fdes; | |
1190 | caddr_t asa; | |
1191 | int *alen; | |
1192 | #ifdef COMPAT_43 | |
1193 | int compat_43; | |
1194 | #endif | |
1195 | }; | |
1196 | ||
15637ed4 RG |
1197 | /* ARGSUSED */ |
1198 | getpeername1(p, uap, retval) | |
1199 | struct proc *p; | |
78ed81a3 | 1200 | register struct getpeername1_args *uap; |
15637ed4 RG |
1201 | int *retval; |
1202 | { | |
1203 | struct file *fp; | |
1204 | register struct socket *so; | |
1205 | struct mbuf *m; | |
1206 | int len, error; | |
1207 | ||
1208 | if (error = getsock(p->p_fd, uap->fdes, &fp)) | |
1209 | return (error); | |
1210 | so = (struct socket *)fp->f_data; | |
1211 | if ((so->so_state & (SS_ISCONNECTED|SS_ISCONFIRMING)) == 0) | |
1212 | return (ENOTCONN); | |
1213 | m = m_getclr(M_WAIT, MT_SONAME); | |
1214 | if (m == NULL) | |
1215 | return (ENOBUFS); | |
1216 | if (error = copyin((caddr_t)uap->alen, (caddr_t)&len, sizeof (len))) | |
1217 | return (error); | |
1218 | if (error = (*so->so_proto->pr_usrreq)(so, PRU_PEERADDR, 0, m, 0)) | |
1219 | goto bad; | |
1220 | if (len > m->m_len) | |
1221 | len = m->m_len; | |
1222 | #ifdef COMPAT_43 | |
1223 | if (uap->compat_43) | |
1224 | mtod(m, struct osockaddr *)->sa_family = | |
1225 | mtod(m, struct sockaddr *)->sa_family; | |
1226 | #endif | |
1227 | if (error = copyout(mtod(m, caddr_t), (caddr_t)uap->asa, (u_int)len)) | |
1228 | goto bad; | |
1229 | error = copyout((caddr_t)&len, (caddr_t)uap->alen, sizeof (len)); | |
1230 | bad: | |
1231 | m_freem(m); | |
1232 | return (error); | |
1233 | } | |
1234 | ||
1235 | sockargs(mp, buf, buflen, type) | |
1236 | struct mbuf **mp; | |
1237 | caddr_t buf; | |
1238 | int buflen, type; | |
1239 | { | |
1240 | register struct mbuf *m; | |
1241 | int error; | |
1242 | ||
1243 | if ((u_int)buflen > MLEN) { | |
1244 | #ifdef COMPAT_43 | |
1245 | if (type == MT_SONAME && (u_int)buflen <= 112) | |
1246 | buflen = MLEN; /* unix domain compat. hack */ | |
1247 | else | |
1248 | #endif | |
1249 | return (EINVAL); | |
1250 | } | |
1251 | m = m_get(M_WAIT, type); | |
1252 | if (m == NULL) | |
1253 | return (ENOBUFS); | |
1254 | m->m_len = buflen; | |
1255 | error = copyin(buf, mtod(m, caddr_t), (u_int)buflen); | |
1256 | if (error) { | |
1257 | (void) m_free(m); | |
1258 | return(error); | |
1259 | } | |
1260 | *mp = m; | |
1261 | if (type == MT_SONAME) { | |
1262 | register struct sockaddr *sa = mtod(m, struct sockaddr *); | |
1263 | ||
1264 | #if defined(COMPAT_43) && BYTE_ORDER != BIG_ENDIAN | |
1265 | if (sa->sa_family == 0 && sa->sa_len < AF_MAX) | |
1266 | sa->sa_family = sa->sa_len; | |
1267 | #endif | |
1268 | sa->sa_len = buflen; | |
1269 | } | |
1270 | return (0); | |
1271 | } | |
1272 | ||
1273 | getsock(fdp, fdes, fpp) | |
1274 | struct filedesc *fdp; | |
1275 | int fdes; | |
1276 | struct file **fpp; | |
1277 | { | |
1278 | register struct file *fp; | |
1279 | ||
1280 | if ((unsigned)fdes >= fdp->fd_nfiles || | |
1281 | (fp = fdp->fd_ofiles[fdes]) == NULL) | |
1282 | return (EBADF); | |
1283 | if (fp->f_type != DTYPE_SOCKET) | |
1284 | return (ENOTSOCK); | |
1285 | *fpp = fp; | |
1286 | return (0); | |
1287 | } |