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