1 2 /* 3 * Copyright (c) 2009, Sun Microsystems, Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * - Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * - Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * - Neither the name of Sun Microsystems, Inc. nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 32 * In addition, portions of such source code were derived from Berkeley 33 * 4.3 BSD under license from the Regents of the University of 34 * California. 35 */ 36 37 #if defined(PORTMAP) || defined (_WIN32) 38 /* 39 * rpc_soc.c 40 * 41 * The backward compatibility routines for the earlier implementation 42 * of RPC, where the only transports supported were tcp/ip and udp/ip. 43 * Based on berkeley socket abstraction, now implemented on the top 44 * of TLI/Streams 45 */ 46 #include <wintirpc.h> 47 //#include <pthread.h> 48 #include <reentrant.h> 49 #include <sys/types.h> 50 //#include <sys/socket.h> 51 #include <stdio.h> 52 #include <rpc/rpc.h> 53 #include <rpc/pmap_clnt.h> 54 #include <rpc/pmap_prot.h> 55 #include <rpc/nettype.h> 56 //#include <syslog.h> 57 //#include <netinet/in.h> 58 //#include <netdb.h> 59 #include <errno.h> 60 //#include <syslog.h> 61 #include <stdlib.h> 62 #include <string.h> 63 //#include <unistd.h> 64 65 #include "rpc_com.h" 66 67 extern mutex_t rpcsoc_lock; 68 69 static CLIENT *clnt_com_create(struct sockaddr_in *, rpcprog_t, rpcvers_t, 70 int *, u_int, u_int, char *); 71 static SVCXPRT *svc_com_create(SOCKET, u_int, u_int, char *); 72 static bool_t rpc_wrap_bcast(char *, struct netbuf *, struct netconfig *); 73 74 /* XXX */ 75 #define IN4_LOCALHOST_STRING "127.0.0.1" 76 #define IN6_LOCALHOST_STRING "::1" 77 78 /* 79 * A common clnt create routine 80 */ 81 static CLIENT * 82 clnt_com_create(raddr, prog, vers, sockp, sendsz, recvsz, tp) 83 struct sockaddr_in *raddr; 84 rpcprog_t prog; 85 rpcvers_t vers; 86 #ifndef __REACTOS__ 87 SOCKET *sockp; 88 #else 89 int *sockp; 90 #endif 91 u_int sendsz; 92 u_int recvsz; 93 char *tp; 94 { 95 CLIENT *cl; 96 int madefd = FALSE; 97 SOCKET fd = *sockp; 98 struct netconfig *nconf; 99 struct netbuf bindaddr; 100 101 mutex_lock(&rpcsoc_lock); 102 if ((nconf = __rpc_getconfip(tp)) == NULL) { 103 rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; 104 mutex_unlock(&rpcsoc_lock); 105 return (NULL); 106 } 107 if (fd == RPC_ANYSOCK) { 108 fd = __rpc_nconf2fd(nconf); 109 if (fd == -1) 110 goto syserror; 111 madefd = TRUE; 112 } 113 114 if (raddr->sin_port == 0) { 115 u_int proto; 116 u_short sport; 117 118 mutex_unlock(&rpcsoc_lock); /* pmap_getport is recursive */ 119 proto = strcmp(tp, "udp") == 0 ? IPPROTO_UDP : IPPROTO_TCP; 120 sport = pmap_getport(raddr, (u_long)prog, (u_long)vers, 121 proto); 122 if (sport == 0) { 123 goto err; 124 } 125 raddr->sin_port = htons(sport); 126 mutex_lock(&rpcsoc_lock); /* pmap_getport is recursive */ 127 } 128 129 /* Transform sockaddr_in to netbuf */ 130 bindaddr.maxlen = bindaddr.len = sizeof (struct sockaddr_in); 131 bindaddr.buf = raddr; 132 133 bindresvport(fd, NULL); 134 cl = clnt_tli_create(fd, nconf, &bindaddr, prog, vers, 135 sendsz, recvsz, NULL, NULL, NULL); 136 if (cl) { 137 if (madefd == TRUE) { 138 /* 139 * The fd should be closed while destroying the handle. 140 */ 141 (void) CLNT_CONTROL(cl, CLSET_FD_CLOSE, NULL); 142 *sockp = fd; 143 } 144 (void) freenetconfigent(nconf); 145 mutex_unlock(&rpcsoc_lock); 146 return (cl); 147 } 148 goto err; 149 150 syserror: 151 rpc_createerr.cf_stat = RPC_SYSTEMERROR; 152 rpc_createerr.cf_error.re_errno = errno; 153 154 err: if (madefd == TRUE) 155 (void)closesocket(fd); 156 (void) freenetconfigent(nconf); 157 mutex_unlock(&rpcsoc_lock); 158 return (NULL); 159 } 160 161 CLIENT * 162 clntudp_bufcreate(raddr, prog, vers, wait, sockp, sendsz, recvsz) 163 struct sockaddr_in *raddr; 164 u_long prog; 165 u_long vers; 166 struct timeval wait; 167 int *sockp; 168 u_int sendsz; 169 u_int recvsz; 170 { 171 CLIENT *cl; 172 173 cl = clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp, 174 sendsz, recvsz, "udp"); 175 if (cl == NULL) { 176 return (NULL); 177 } 178 (void) CLNT_CONTROL(cl, CLSET_RETRY_TIMEOUT, &wait); 179 return (cl); 180 } 181 182 CLIENT * 183 clntudp_create(raddr, program, version, wait, sockp) 184 struct sockaddr_in *raddr; 185 u_long program; 186 u_long version; 187 struct timeval wait; 188 int *sockp; 189 { 190 return clntudp_bufcreate(raddr, program, version, wait, sockp, UDPMSGSIZE, UDPMSGSIZE); 191 } 192 193 CLIENT * 194 clnttcp_create(raddr, prog, vers, sockp, sendsz, recvsz) 195 struct sockaddr_in *raddr; 196 u_long prog; 197 u_long vers; 198 int *sockp; 199 u_int sendsz; 200 u_int recvsz; 201 { 202 return clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp, 203 sendsz, recvsz, "tcp"); 204 } 205 206 /* IPv6 version of clnt*_*create */ 207 208 #ifdef INET6_NOT_USED 209 210 CLIENT * 211 clntudp6_bufcreate(raddr, prog, vers, wait, sockp, sendsz, recvsz) 212 struct sockaddr_in6 *raddr; 213 u_long prog; 214 u_long vers; 215 struct timeval wait; 216 int *sockp; 217 u_int sendsz; 218 u_int recvsz; 219 { 220 CLIENT *cl; 221 222 cl = clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp, 223 sendsz, recvsz, "udp6"); 224 if (cl == NULL) { 225 return (NULL); 226 } 227 (void) CLNT_CONTROL(cl, CLSET_RETRY_TIMEOUT, &wait); 228 return (cl); 229 } 230 231 CLIENT * 232 clntudp6_create(raddr, program, version, wait, sockp) 233 struct sockaddr_in6 *raddr; 234 u_long program; 235 u_long version; 236 struct timeval wait; 237 int *sockp; 238 { 239 return clntudp6_bufcreate(raddr, program, version, wait, sockp, UDPMSGSIZE, UDPMSGSIZE); 240 } 241 242 CLIENT * 243 clnttcp6_create(raddr, prog, vers, sockp, sendsz, recvsz) 244 struct sockaddr_in6 *raddr; 245 u_long prog; 246 u_long vers; 247 int *sockp; 248 u_int sendsz; 249 u_int recvsz; 250 { 251 return clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp, 252 sendsz, recvsz, "tcp6"); 253 } 254 255 #endif 256 257 CLIENT * 258 clntraw_create(prog, vers) 259 u_long prog; 260 u_long vers; 261 { 262 return clnt_raw_create((rpcprog_t)prog, (rpcvers_t)vers); 263 } 264 265 /* 266 * A common server create routine 267 */ 268 static SVCXPRT * 269 svc_com_create(fd, sendsize, recvsize, netid) 270 SOCKET fd; 271 u_int sendsize; 272 u_int recvsize; 273 char *netid; 274 { 275 struct netconfig *nconf; 276 SVCXPRT *svc; 277 int madefd = FALSE; 278 int port; 279 struct sockaddr_in sin; 280 281 if ((nconf = __rpc_getconfip(netid)) == NULL) { 282 //(void) syslog(LOG_ERR, "Could not get %s transport", netid); 283 return (NULL); 284 } 285 if (fd == RPC_ANYSOCK) { 286 fd = __rpc_nconf2fd(nconf); 287 if (fd == -1) { 288 (void) freenetconfigent(nconf); 289 //(void) syslog(LOG_ERR, 290 //"svc%s_create: could not open connection", netid); 291 return (NULL); 292 } 293 madefd = TRUE; 294 } 295 296 memset(&sin, 0, sizeof sin); 297 sin.sin_family = AF_INET; 298 bindresvport(fd, &sin); 299 listen(fd, SOMAXCONN); 300 svc = svc_tli_create(fd, nconf, NULL, sendsize, recvsize); 301 (void) freenetconfigent(nconf); 302 if (svc == NULL) { 303 if (madefd) 304 (void)closesocket(fd); 305 return (NULL); 306 } 307 port = (((struct sockaddr_in *)svc->xp_ltaddr.buf)->sin_port); 308 svc->xp_port = ntohs((u_short)port); 309 return (svc); 310 } 311 312 SVCXPRT * 313 svctcp_create(fd, sendsize, recvsize) 314 #ifndef __REACTOS__ 315 SOCKET fd; 316 #else 317 int fd; 318 #endif 319 u_int sendsize; 320 u_int recvsize; 321 { 322 323 return svc_com_create(fd, sendsize, recvsize, "tcp"); 324 } 325 326 327 328 SVCXPRT * 329 svcudp_bufcreate(fd, sendsz, recvsz) 330 #ifndef __REACTOS__ 331 SOCKET fd; 332 #else 333 int fd; 334 #endif 335 u_int sendsz, recvsz; 336 { 337 338 return svc_com_create(fd, sendsz, recvsz, "udp"); 339 } 340 341 342 343 SVCXPRT * 344 svcfd_create(fd, sendsize, recvsize) 345 #ifndef __REACTOS__ 346 SOCKET fd; 347 #else 348 int fd; 349 #endif 350 u_int sendsize; 351 u_int recvsize; 352 { 353 354 return svc_fd_create(fd, sendsize, recvsize); 355 } 356 357 358 SVCXPRT * 359 svcudp_create(fd) 360 #ifndef __REACTOS__ 361 SOCKET fd; 362 #else 363 int fd; 364 #endif 365 { 366 367 return svc_com_create(fd, UDPMSGSIZE, UDPMSGSIZE, "udp"); 368 } 369 370 371 SVCXPRT * 372 svcraw_create() 373 { 374 375 return svc_raw_create(); 376 } 377 378 379 /* IPV6 version */ 380 #ifdef INET6_NOT_USED 381 SVCXPRT * 382 svcudp6_bufcreate(fd, sendsz, recvsz) 383 int fd; 384 u_int sendsz, recvsz; 385 { 386 return svc_com_create(fd, sendsz, recvsz, "udp6"); 387 } 388 389 390 SVCXPRT * 391 svctcp6_create(fd, sendsize, recvsize) 392 int fd; 393 u_int sendsize; 394 u_int recvsize; 395 { 396 return svc_com_create(fd, sendsize, recvsize, "tcp6"); 397 } 398 399 400 SVCXPRT * 401 svcudp6_create(fd) 402 int fd; 403 { 404 return svc_com_create(fd, UDPMSGSIZE, UDPMSGSIZE, "udp6"); 405 } 406 #endif 407 408 int 409 get_myaddress(addr) 410 struct sockaddr_in *addr; 411 { 412 413 memset((void *) addr, 0, sizeof(*addr)); 414 addr->sin_family = AF_INET; 415 addr->sin_port = htons(PMAPPORT); 416 addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK); 417 return (0); 418 } 419 420 /* 421 * For connectionless "udp" transport. Obsoleted by rpc_call(). 422 */ 423 int 424 callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out) 425 const char *host; 426 int prognum, versnum, procnum; 427 xdrproc_t inproc, outproc; 428 void *in, *out; 429 { 430 431 return (int)rpc_call(host, (rpcprog_t)prognum, (rpcvers_t)versnum, 432 (rpcproc_t)procnum, inproc, in, outproc, out, "udp"); 433 } 434 435 /* 436 * For connectionless kind of transport. Obsoleted by rpc_reg() 437 */ 438 int 439 registerrpc(prognum, versnum, procnum, progname, inproc, outproc) 440 int prognum, versnum, procnum; 441 char *(*progname)(char [UDPMSGSIZE]); 442 xdrproc_t inproc, outproc; 443 { 444 445 return rpc_reg((rpcprog_t)prognum, (rpcvers_t)versnum, 446 (rpcproc_t)procnum, progname, inproc, outproc, "udp"); 447 } 448 449 /* 450 * All the following clnt_broadcast stuff is convulated; it supports 451 * the earlier calling style of the callback function 452 */ 453 extern thread_key_t clnt_broadcast_key; 454 455 /* 456 * Need to translate the netbuf address into sockaddr_in address. 457 * Dont care about netid here. 458 */ 459 /* ARGSUSED */ 460 static bool_t 461 rpc_wrap_bcast(resultp, addr, nconf) 462 char *resultp; /* results of the call */ 463 struct netbuf *addr; /* address of the guy who responded */ 464 struct netconfig *nconf; /* Netconf of the transport */ 465 { 466 resultproc_t clnt_broadcast_result; 467 468 if (strcmp(nconf->nc_netid, "udp")) 469 return (FALSE); 470 clnt_broadcast_result = (resultproc_t)thr_getspecific(clnt_broadcast_key); 471 return (*clnt_broadcast_result)(resultp, 472 (struct sockaddr_in *)addr->buf); 473 } 474 475 /* 476 * Broadcasts on UDP transport. Obsoleted by rpc_broadcast(). 477 */ 478 enum clnt_stat 479 clnt_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp, eachresult) 480 u_long prog; /* program number */ 481 u_long vers; /* version number */ 482 u_long proc; /* procedure number */ 483 xdrproc_t xargs; /* xdr routine for args */ 484 void *argsp; /* pointer to args */ 485 xdrproc_t xresults; /* xdr routine for results */ 486 void *resultsp; /* pointer to results */ 487 resultproc_t eachresult; /* call with each result obtained */ 488 { 489 extern mutex_t tsd_lock; 490 491 if (clnt_broadcast_key == -1) { 492 mutex_lock(&tsd_lock); 493 if (clnt_broadcast_key == -1) 494 thr_keycreate(&clnt_broadcast_key, free); 495 mutex_unlock(&tsd_lock); 496 } 497 thr_setspecific(clnt_broadcast_key, (void *) eachresult); 498 return rpc_broadcast((rpcprog_t)prog, (rpcvers_t)vers, 499 (rpcproc_t)proc, xargs, argsp, xresults, resultsp, 500 (resultproc_t) rpc_wrap_bcast, "udp"); 501 } 502 503 #ifndef _WIN32 504 /* 505 * Create the client des authentication object. Obsoleted by 506 * authdes_seccreate(). 507 */ 508 AUTH * 509 authdes_create(servername, window, syncaddr, ckey) 510 char *servername; /* network name of server */ 511 u_int window; /* time to live */ 512 struct sockaddr *syncaddr; /* optional hostaddr to sync with */ 513 des_block *ckey; /* optional conversation key to use */ 514 { 515 AUTH *dummy; 516 AUTH *nauth; 517 char hostname[NI_MAXHOST]; 518 519 if (syncaddr) { 520 /* 521 * Change addr to hostname, because that is the way 522 * new interface takes it. 523 */ 524 if (getnameinfo(syncaddr, sizeof(syncaddr), hostname, 525 sizeof hostname, NULL, 0, 0) != 0) 526 goto fallback; 527 528 nauth = authdes_seccreate(servername, window, hostname, ckey); 529 return (nauth); 530 } 531 fallback: 532 dummy = authdes_seccreate(servername, window, NULL, ckey); 533 return (dummy); 534 } 535 #endif 536 537 /* 538 * Create a client handle for a unix connection. Obsoleted by clnt_vc_create() 539 */ 540 CLIENT * 541 clntunix_create(raddr, prog, vers, sockp, sendsz, recvsz) 542 struct sockaddr_un *raddr; 543 u_long prog; 544 u_long vers; 545 #ifndef __REACTOS__ 546 SOCKET *sockp; 547 #else 548 int *sockp; 549 #endif 550 u_int sendsz; 551 u_int recvsz; 552 { 553 struct netbuf *svcaddr; 554 struct netconfig *nconf; 555 CLIENT *cl; 556 int len; 557 558 cl = NULL; 559 nconf = NULL; 560 svcaddr = NULL; 561 if (((svcaddr = malloc(sizeof(struct netbuf))) == NULL ) || 562 ((svcaddr->buf = malloc(sizeof(struct sockaddr_un))) == NULL)) { 563 if (svcaddr != NULL) 564 free(svcaddr); 565 rpc_createerr.cf_stat = RPC_SYSTEMERROR; 566 rpc_createerr.cf_error.re_errno = errno; 567 return(cl); 568 } 569 if (*sockp == SOCKET_ERROR) { 570 *sockp = socket(AF_UNIX, SOCK_STREAM, 0); 571 len = SUN_LEN(raddr); 572 if ((*sockp == INVALID_SOCKET) || (connect(*sockp, 573 (struct sockaddr *)raddr, len) == SOCKET_ERROR)) { 574 rpc_createerr.cf_stat = RPC_SYSTEMERROR; 575 rpc_createerr.cf_error.re_errno = errno; 576 if (*sockp != INVALID_SOCKET) 577 (void)closesocket(*sockp); 578 goto done; 579 } 580 } 581 svcaddr->buf = raddr; 582 svcaddr->len = sizeof(raddr); 583 svcaddr->maxlen = sizeof (struct sockaddr_un); 584 cl = clnt_vc_create(*sockp, svcaddr, prog, 585 vers, sendsz, recvsz, NULL, NULL, NULL); 586 done: 587 free(svcaddr->buf); 588 free(svcaddr); 589 return(cl); 590 } 591 592 /* 593 * Creates, registers, and returns a (rpc) unix based transporter. 594 * Obsoleted by svc_vc_create(). 595 */ 596 SVCXPRT * 597 svcunix_create(sock, sendsize, recvsize, path) 598 #ifndef __REACTOS__ 599 SOCKET sock; 600 #else 601 int sock; 602 #endif 603 u_int sendsize; 604 u_int recvsize; 605 char *path; 606 { 607 struct netconfig *nconf; 608 void *localhandle; 609 struct sockaddr_un sun; 610 struct sockaddr *sa; 611 struct t_bind taddr; 612 SVCXPRT *xprt; 613 int addrlen; 614 615 xprt = (SVCXPRT *)NULL; 616 localhandle = setnetconfig(); 617 while ((nconf = getnetconfig(localhandle)) != NULL) { 618 if (nconf->nc_protofmly != NULL && 619 strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) 620 break; 621 } 622 if (nconf == NULL) 623 return(xprt); 624 625 if ((sock = __rpc_nconf2fd(nconf)) == SOCKET_ERROR) 626 goto done; 627 628 memset(&sun, 0, sizeof sun); 629 sun.sun_family = AF_UNIX; 630 strncpy(sun.sun_path, path, sizeof(sun.sun_path)); 631 addrlen = sizeof(struct sockaddr_un); 632 sa = (struct sockaddr *)&sun; 633 634 if (bind(sock, sa, addrlen) == SOCKET_ERROR) 635 goto done; 636 637 taddr.addr.len = taddr.addr.maxlen = addrlen; 638 taddr.addr.buf = malloc(addrlen); 639 if (taddr.addr.buf == NULL) 640 goto done; 641 memcpy(taddr.addr.buf, sa, addrlen); 642 643 if (nconf->nc_semantics != NC_TPI_CLTS) { 644 if (listen(sock, SOMAXCONN) == SOCKET_ERROR) { 645 free(taddr.addr.buf); 646 goto done; 647 } 648 } 649 650 xprt = (SVCXPRT *)svc_tli_create(sock, nconf, &taddr, sendsize, recvsize); 651 652 done: 653 endnetconfig(localhandle); 654 return(xprt); 655 } 656 657 /* 658 * Like svunix_create(), except the routine takes any *open* UNIX file 659 * descriptor as its first input. Obsoleted by svc_fd_create(); 660 */ 661 SVCXPRT * 662 svcunixfd_create(fd, sendsize, recvsize) 663 #ifndef __REACTOS__ 664 SOCKET fd; 665 #else 666 int fd; 667 #endif 668 u_int sendsize; 669 u_int recvsize; 670 { 671 return (svc_fd_create(fd, sendsize, recvsize)); 672 } 673 674 #endif /* PORTMAP */ 675