1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/param.h> 29 #include <sys/types.h> 30 #include <sys/systm.h> 31 #include <sys/cred.h> 32 #include <sys/user.h> 33 #include <sys/file.h> 34 #include <sys/stream.h> 35 #include <sys/strsubr.h> 36 #include <sys/stropts.h> 37 #include <sys/strsun.h> 38 #include <sys/debug.h> 39 #include <sys/tiuser.h> 40 #include <sys/sockio.h> 41 #include <sys/socket.h> 42 #include <sys/t_kuser.h> 43 #include <sys/utsname.h> 44 #include <sys/systeminfo.h> 45 #include <sys/netconfig.h> 46 #include <sys/ethernet.h> 47 #include <sys/dlpi.h> 48 #include <sys/vfs.h> 49 #include <sys/sysmacros.h> 50 #include <sys/bootconf.h> 51 #include <sys/bootprops.h> 52 #include <sys/cmn_err.h> 53 #include <sys/promif.h> 54 #include <sys/mount.h> 55 56 #include <net/if.h> 57 #include <net/route.h> 58 59 #include <netinet/in.h> 60 #include <netinet/arp.h> 61 #include <netinet/dhcp.h> 62 #include <netinet/inetutil.h> 63 #include <dhcp_impl.h> 64 #include <sys/sunos_dhcp_class.h> 65 66 #include <rpc/types.h> 67 #include <rpc/rpc.h> 68 #include <rpc/xdr.h> 69 #include <rpc/auth.h> 70 #include <rpc/clnt.h> 71 #include <rpc/pmap_clnt.h> 72 #include <rpc/pmap_rmt.h> 73 #include <rpc/pmap_prot.h> 74 #include <rpc/bootparam.h> 75 #include <rpc/rpcb_prot.h> 76 77 #include <nfs/nfs.h> 78 #include <nfs/nfs4.h> 79 #include <nfs/nfs_clnt.h> 80 #include <nfs/mount.h> 81 #include <sys/mntent.h> 82 83 #include <sys/kstr.h> 84 #include <sys/sunddi.h> 85 #include <sys/sunldi.h> 86 #include <sys/esunddi.h> 87 88 #include <sys/errno.h> 89 #include <sys/modctl.h> 90 91 /* 92 * RPC timers and retries 93 */ 94 #define PMAP_RETRIES 5 95 #define DEFAULT_RETRIES 3 96 #define GETFILE_RETRIES 2 97 98 #define DEFAULT_TIMEO 3 99 #define WHOAMI_TIMEO 20 100 #define REVARP_TIMEO 5 101 #define GETFILE_TIMEO 1 102 103 /* 104 * These are from the rpcgen'd version of mount.h XXX 105 */ 106 #define MOUNTPROG 100005 107 #define MOUNTPROC_MNT 1 108 #define MOUNTVERS 1 109 #define MOUNTVERS_POSIX 2 110 #define MOUNTVERS3 3 111 112 struct fhstatus { 113 int fhs_status; 114 fhandle_t fhs_fh; 115 }; 116 117 #define FHSIZE3 64 118 119 struct fhandle3 { 120 uint_t fhandle3_len; 121 char *fhandle3_val; 122 }; 123 124 enum mountstat3 { 125 MNT_OK = 0, 126 MNT3ERR_PERM = 1, 127 MNT3ERR_NOENT = 2, 128 MNT3ERR_IO = 5, 129 MNT3ERR_ACCES = 13, 130 MNT3ERR_NOTDIR = 20, 131 MNT3ERR_INVAL = 22, 132 MNT3ERR_NAMETOOLONG = 63, 133 MNT3ERR_NOTSUPP = 10004, 134 MNT3ERR_SERVERFAULT = 10006 135 }; 136 137 struct mountres3_ok { 138 struct fhandle3 fhandle; 139 struct { 140 uint_t auth_flavors_len; 141 int *auth_flavors_val; 142 } auth_flavors; 143 }; 144 145 struct mountres3 { 146 enum mountstat3 fhs_status; 147 union { 148 struct mountres3_ok mountinfo; 149 } mountres3_u; 150 }; 151 152 /* 153 * DLPI address format. 154 */ 155 struct dladdr { 156 uchar_t dl_phys[6]; 157 ushort_t dl_sap; 158 }; 159 160 static struct modlmisc modlmisc = { 161 &mod_miscops, "Boot diskless" 162 }; 163 164 static struct modlinkage modlinkage = { 165 MODREV_1, (void *)&modlmisc, NULL 166 }; 167 168 static int dldebug; 169 170 int 171 _init(void) 172 { 173 return (mod_install(&modlinkage)); 174 } 175 176 int 177 _fini(void) 178 { 179 return (mod_remove(&modlinkage)); 180 } 181 182 int 183 _info(struct modinfo *modinfop) 184 { 185 return (mod_info(&modlinkage, modinfop)); 186 } 187 188 189 static enum clnt_stat pmap_rmt_call(struct knetconfig *, struct netbuf *, 190 bool_t, rpcprog_t, rpcvers_t, rpcproc_t, xdrproc_t, 191 caddr_t, xdrproc_t, caddr_t, struct timeval, 192 struct netbuf *); 193 static bool_t myxdr_rmtcall_args(XDR *, struct rmtcallargs *); 194 static bool_t myxdr_rmtcallres(XDR *, struct rmtcallres *); 195 static bool_t myxdr_pmap(XDR *, struct pmap *); 196 static bool_t myxdr_fhstatus(XDR *xdrs, struct fhstatus *fhsp); 197 static bool_t myxdr_fhandle(XDR *xdrs, fhandle_t *fh); 198 static bool_t myxdr_mountres3(XDR *xdrs, struct mountres3 *objp); 199 static bool_t myxdr_mountstat3(XDR *xdrs, enum mountstat3 *objp); 200 static bool_t myxdr_mountres3_ok(XDR *xdrs, 201 struct mountres3_ok *objp); 202 static bool_t myxdr_fhandle3(XDR *xdrs, struct fhandle3 *objp); 203 static enum clnt_stat pmap_kgetport(struct knetconfig *, struct netbuf *, 204 rpcprog_t, rpcvers_t, rpcprot_t); 205 static enum clnt_stat mycallrpc(struct knetconfig *, struct netbuf *, 206 rpcprog_t, rpcvers_t, rpcproc_t, xdrproc_t, 207 char *, xdrproc_t, char *, int, int); 208 static int ifioctl(TIUSER *, int, struct netbuf *); 209 static int getfile(char *, char *, struct netbuf *, char *); 210 static int ping_prog(struct netbuf *, uint_t prog, uint_t vers, 211 int proto, enum clnt_stat *); 212 static int mountnfs(struct netbuf *, char *, char *, 213 fhandle_t *, int *); 214 static int mountnfs3(struct netbuf *, char *, char *, 215 nfs_fh3 *, int *); 216 static int init_mountopts(struct nfs_args *, int, 217 struct knetconfig **, int *); 218 static int revarp_myaddr(TIUSER *); 219 static void revarp_start(ldi_handle_t, struct netbuf *); 220 static void revarpinput(ldi_handle_t, struct netbuf *); 221 static void init_netbuf(struct netbuf *); 222 static void free_netbuf(struct netbuf *); 223 static int rtioctl(TIUSER *, int, struct rtentry *); 224 static int dl_info(ldi_handle_t, dl_info_ack_t *); 225 extern int dl_attach(ldi_handle_t, int); 226 extern int dl_bind(ldi_handle_t, uint32_t, uint32_t, uint32_t, 227 uint32_t); 228 extern int dl_phys_addr(ldi_handle_t, struct ether_addr *); 229 static void init_config(void); 230 231 static void cacheinit(void); 232 static int cacheinfo(char *, int, struct netbuf *, char *, int); 233 static int dlifconfig(TIUSER *, struct in_addr *, struct in_addr *, 234 struct in_addr *, uint_t); 235 static int setifflags(TIUSER *, uint_t); 236 237 static char *inet_ntoa(struct in_addr); 238 static int inet_aton(char *, uchar_t *); 239 static int isdigit(int); 240 241 /* 242 * Should be in some common 243 * ethernet source file. 244 */ 245 static struct ether_addr etherbroadcastaddr = { 246 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 247 }; 248 249 static struct ether_addr myether; 250 251 /* 252 * "ifname" is the interface name/unit as read from the boot 253 * arguments. 254 * "ndev" is the major device number of the network interface 255 * used to boot from. 256 * "ifunit" it the physical point of attachment for the network 257 * interface used to boot from. 258 * 259 * Both of these are initialized in "init_config()". 260 */ 261 262 static char ifname[IFNAMSIZ]; 263 static char ndev_path[MAXPATHLEN]; 264 static int ifunit; 265 266 /* 267 * XXX these should be shared 268 */ 269 static struct knetconfig dl_udp_netconf = { 270 NC_TPI_CLTS, /* semantics */ 271 NC_INET, /* family */ 272 NC_UDP, /* protocol */ 273 0, /* device */ 274 }; 275 276 static struct knetconfig dl_tcp_netconf = { 277 NC_TPI_COTS, /* semantics */ 278 NC_INET, /* family */ 279 NC_TCP, /* protocol */ 280 0, /* device */ 281 }; 282 283 /* parameters from DHCP or bootparamd */ 284 static PKT_LIST *pl = NULL; 285 static uchar_t server_ip[4]; 286 static uchar_t dhcp_server_ip[4]; 287 static char *server_name_c, *server_path_c; 288 static char rootopts[256]; 289 290 /* 291 * XXX Until we get the nfsmapid deadlocks all fixed, don't allow 292 * XXX a v4 root mount. 293 */ 294 int nfs4_no_diskless_root_support = 1; 295 296 int 297 mount_root(char *name, char *path, int version, struct nfs_args *args, 298 int *vfsflags) 299 { 300 int rc; 301 int proto; 302 struct knetconfig *dl_cf; 303 static int init_done = 0; 304 enum clnt_stat stat; 305 306 if (dldebug) 307 printf("mount_root: name=%s\n", name); 308 309 if (init_done == 0) { 310 init_config(); 311 init_done = 1; 312 } 313 314 init_netbuf(args->addr); 315 316 do { 317 rc = getfile(name, args->hostname, args->addr, path); 318 } while (rc == ETIMEDOUT); 319 320 if (rc) { 321 free_netbuf(args->addr); 322 return (rc); 323 } 324 325 ASSERT(args->knconf->knc_protofmly != NULL); 326 ASSERT(args->knconf->knc_proto != NULL); 327 328 switch (version) { 329 case NFS_VERSION: 330 rc = mountnfs(args->addr, args->hostname, path, 331 (fhandle_t *)args->fh, &proto); 332 break; 333 case NFS_V3: 334 rc = mountnfs3(args->addr, args->hostname, path, 335 (nfs_fh3 *)args->fh, &proto); 336 break; 337 case NFS_V4: 338 ((struct sockaddr_in *)args->addr->buf)->sin_port = 339 htons(NFS_PORT); 340 if (ping_prog(args->addr, NFS_PROGRAM, NFS_V4, IPPROTO_TCP, 341 &stat)) { 342 proto = IPPROTO_TCP; 343 rc = 0; 344 } else { 345 switch (stat) { 346 case RPC_PROGVERSMISMATCH: 347 case RPC_XPRTFAILED: 348 /* 349 * Common failures if v4 unsupported or no TCP 350 */ 351 rc = EPROTONOSUPPORT; 352 break; 353 default: 354 rc = ENXIO; 355 } 356 } 357 if (nfs4_no_diskless_root_support) 358 rc = EPROTONOSUPPORT; 359 break; 360 default: 361 rc = EPROTONOSUPPORT; 362 break; 363 } 364 365 if (rc) 366 goto errout; 367 368 switch (proto) { 369 case IPPROTO_TCP: 370 dl_cf = &dl_tcp_netconf; 371 break; 372 case IPPROTO_UDP: 373 default: 374 dl_cf = &dl_udp_netconf; 375 break; 376 } 377 378 rc = init_mountopts(args, version, &dl_cf, vfsflags); 379 380 /* 381 * Copy knetconfig information from the template, note that the 382 * rdev field has been set by init_config above. 383 */ 384 args->knconf->knc_semantics = dl_cf->knc_semantics; 385 args->knconf->knc_rdev = dl_cf->knc_rdev; 386 (void) strcpy(args->knconf->knc_protofmly, dl_cf->knc_protofmly); 387 (void) strcpy(args->knconf->knc_proto, dl_cf->knc_proto); 388 389 errout: 390 if (dldebug) { 391 if (rc) 392 nfs_perror(rc, "mount_root: mount %s:%s failed: %m\n", 393 args->hostname, path); 394 else 395 printf("mount_root: leaving\n"); 396 } 397 398 return (rc); 399 } 400 401 /* 402 * Call mount daemon on server `sa' to mount path. 403 * `port' is set to nfs port and fh is the fhandle 404 * returned from the server. 405 */ 406 static int 407 mountnfs(struct netbuf *sa, char *server, 408 char *path, fhandle_t *fh, int *proto) 409 { 410 struct fhstatus fhs; 411 enum clnt_stat stat; 412 413 if (dldebug) 414 printf("mountnfs: entered\n"); 415 416 /* 417 * Get the port number for the mount program. 418 * pmap_kgetport first tries a SunOS portmapper 419 * and, if no reply is received, will try a 420 * SVR4 rpcbind. Either way, `sa' is set to 421 * the correct address. 422 */ 423 do { 424 stat = pmap_kgetport(&dl_udp_netconf, sa, (rpcprog_t)MOUNTPROG, 425 (rpcvers_t)MOUNTVERS, (rpcprot_t)IPPROTO_UDP); 426 427 if (stat == RPC_TIMEDOUT) { 428 cmn_err(CE_WARN, 429 "mountnfs: %s:%s portmap not responding", 430 server, path); 431 } else if (stat != RPC_SUCCESS) { 432 cmn_err(CE_WARN, 433 "mountnfs: pmap_kgetport RPC error %d (%s).", 434 stat, clnt_sperrno(stat)); 435 return (ENXIO); /* XXX */ 436 } 437 } while (stat == RPC_TIMEDOUT); 438 439 /* 440 * The correct port number has been 441 * put into `sa' by pmap_kgetport(). 442 */ 443 do { 444 stat = mycallrpc(&dl_udp_netconf, sa, (rpcprog_t)MOUNTPROG, 445 (rpcvers_t)MOUNTVERS, (rpcproc_t)MOUNTPROC_MNT, 446 xdr_bp_path_t, (char *)&path, 447 myxdr_fhstatus, (char *)&fhs, 448 DEFAULT_TIMEO, DEFAULT_RETRIES); 449 if (stat == RPC_TIMEDOUT) { 450 cmn_err(CE_WARN, 451 "mountnfs: %s:%s mount server not responding", 452 server, path); 453 } 454 } while (stat == RPC_TIMEDOUT); 455 456 if (stat != RPC_SUCCESS) { 457 cmn_err(CE_WARN, "mountnfs: RPC failed: error %d (%s).", 458 stat, clnt_sperrno(stat)); 459 return (ENXIO); /* XXX */ 460 } 461 462 ((struct sockaddr_in *)sa->buf)->sin_port = htons(NFS_PORT); 463 464 *fh = fhs.fhs_fh; 465 if (fhs.fhs_status != 0) { 466 if (dldebug) 467 printf("mountnfs: fhs_status %d\n", fhs.fhs_status); 468 return (ENXIO); /* XXX */ 469 } 470 471 *proto = IPPROTO_UDP; 472 473 if (ping_prog(sa, NFS_PROGRAM, NFS_VERSION, IPPROTO_TCP, NULL)) 474 *proto = IPPROTO_TCP; 475 476 if (dldebug) 477 printf("mountnfs: leaving\n"); 478 return (0); 479 } 480 481 /* 482 * Call mount daemon on server `sa' to mount path. 483 * `port' is set to nfs port and fh is the fhandle 484 * returned from the server. 485 */ 486 static int 487 mountnfs3(struct netbuf *sa, char *server, 488 char *path, nfs_fh3 *fh, int *proto) 489 { 490 struct mountres3 mountres3; 491 enum clnt_stat stat; 492 int ret = 0; 493 494 if (dldebug) 495 printf("mountnfs3: entered\n"); 496 497 /* 498 * Get the port number for the mount program. 499 * pmap_kgetport first tries a SunOS portmapper 500 * and, if no reply is received, will try a 501 * SVR4 rpcbind. Either way, `sa' is set to 502 * the correct address. 503 */ 504 do { 505 stat = pmap_kgetport(&dl_udp_netconf, sa, (rpcprog_t)MOUNTPROG, 506 (rpcvers_t)MOUNTVERS3, (rpcprot_t)IPPROTO_UDP); 507 508 if (stat == RPC_PROGVERSMISMATCH) { 509 if (dldebug) 510 printf("mountnfs3: program/version mismatch\n"); 511 return (EPROTONOSUPPORT); /* XXX */ 512 } else if (stat == RPC_TIMEDOUT) { 513 cmn_err(CE_WARN, 514 "mountnfs3: %s:%s portmap not responding", 515 server, path); 516 } else if (stat != RPC_SUCCESS) { 517 cmn_err(CE_WARN, 518 "mountnfs3: pmap_kgetport RPC error %d (%s).", 519 stat, clnt_sperrno(stat)); 520 return (ENXIO); /* XXX */ 521 } 522 } while (stat == RPC_TIMEDOUT); 523 524 mountres3.mountres3_u.mountinfo.fhandle.fhandle3_val = NULL; 525 mountres3.mountres3_u.mountinfo.auth_flavors.auth_flavors_val = NULL; 526 527 /* 528 * The correct port number has been 529 * put into `sa' by pmap_kgetport(). 530 */ 531 do { 532 stat = mycallrpc(&dl_udp_netconf, sa, (rpcprog_t)MOUNTPROG, 533 (rpcvers_t)MOUNTVERS3, (rpcproc_t)MOUNTPROC_MNT, 534 xdr_bp_path_t, (char *)&path, 535 myxdr_mountres3, (char *)&mountres3, 536 DEFAULT_TIMEO, DEFAULT_RETRIES); 537 if (stat == RPC_TIMEDOUT) { 538 cmn_err(CE_WARN, 539 "mountnfs3: %s:%s mount server not responding", 540 server, path); 541 } 542 } while (stat == RPC_TIMEDOUT); 543 544 if (stat == RPC_PROGVERSMISMATCH) { 545 if (dldebug) 546 printf("mountnfs3: program/version mismatch\n"); 547 ret = EPROTONOSUPPORT; 548 goto out; 549 } 550 if (stat != RPC_SUCCESS) { 551 cmn_err(CE_WARN, "mountnfs3: RPC failed: error %d (%s).", 552 stat, clnt_sperrno(stat)); 553 ret = ENXIO; /* XXX */ 554 goto out; 555 } 556 557 if (mountres3.fhs_status != MNT_OK) { 558 if (dldebug) 559 printf("mountnfs3: fhs_status %d\n", 560 mountres3.fhs_status); 561 ret = ENXIO; /* XXX */ 562 goto out; 563 } 564 565 ((struct sockaddr_in *)sa->buf)->sin_port = htons(NFS_PORT); 566 567 *proto = IPPROTO_UDP; 568 569 if (ping_prog(sa, NFS_PROGRAM, NFS_V3, IPPROTO_TCP, NULL)) { 570 *proto = IPPROTO_TCP; 571 } 572 573 fh->fh3_length = mountres3.mountres3_u.mountinfo.fhandle.fhandle3_len; 574 bcopy(mountres3.mountres3_u.mountinfo.fhandle.fhandle3_val, 575 fh->fh3_u.data, fh->fh3_length); 576 577 out: 578 xdr_free(myxdr_mountres3, (caddr_t)&mountres3); 579 580 if (dldebug) 581 printf("mountnfs3: leaving\n"); 582 return (ret); 583 } 584 585 static int 586 ping_prog(struct netbuf *call_addr, uint_t prog, uint_t vers, int proto, 587 enum clnt_stat *statp) 588 { 589 struct knetconfig *knconf; 590 enum clnt_stat stat; 591 int retries = DEFAULT_RETRIES; 592 593 switch (proto) { 594 case IPPROTO_TCP: 595 knconf = &dl_tcp_netconf; 596 break; 597 case IPPROTO_UDP: 598 knconf = &dl_udp_netconf; 599 break; 600 default: 601 return (0); 602 } 603 604 do { 605 stat = mycallrpc(knconf, call_addr, prog, vers, NULLPROC, 606 xdr_void, NULL, xdr_void, NULL, 607 DEFAULT_TIMEO, DEFAULT_RETRIES); 608 609 if (dldebug) 610 printf("ping_prog: %d return %d (%s)\n", proto, stat, 611 clnt_sperrno(stat)); 612 /* 613 * Special case for TCP, it may "timeout" because it failed 614 * to establish an initial connection but it doesn't 615 * actually retry, so we do the retry. 616 * Persistence pays in diskless. 617 */ 618 } while (stat == RPC_TIMEDOUT && proto == IPPROTO_TCP && retries--); 619 620 if (statp != NULL) 621 *statp = stat; 622 623 if (stat != RPC_SUCCESS) 624 return (0); 625 return (1); 626 } 627 628 static struct netbuf bootparam_addr; 629 630 /* 631 * Returns after filling in the following global variables: 632 * bootparam_addr, 633 * utsname.nodename, 634 * srpc_domain. 635 */ 636 static int 637 whoami(void) 638 { 639 TIUSER *tiptr; 640 struct netbuf sa; 641 struct netbuf req; 642 struct bp_whoami_arg arg; 643 struct bp_whoami_res res; 644 struct timeval tv; 645 enum clnt_stat stat; 646 int rc; 647 size_t namelen; 648 int printed_waiting_msg; 649 650 if ((rc = t_kopen((file_t *)NULL, dl_udp_netconf.knc_rdev, 651 FREAD|FWRITE, &tiptr, CRED())) != 0) { 652 nfs_perror(rc, "whoami: t_kopen udp failed: %m.\n"); 653 } 654 655 /* 656 * Find out our local (IP) address. 657 */ 658 if (rc = revarp_myaddr(tiptr)) { 659 nfs_perror(rc, "whoami: revarp_myaddr failed: %m.\n"); 660 (void) t_kclose(tiptr, 0); 661 return (rc); 662 } 663 664 /* explicitly use the limited broadcast address */ 665 init_netbuf(&sa); 666 ((struct sockaddr_in *)sa.buf)->sin_family = AF_INET; 667 ((struct sockaddr_in *)sa.buf)->sin_addr.s_addr = 668 htonl(INADDR_BROADCAST); 669 sa.len = sizeof (struct sockaddr_in); 670 671 /* 672 * Pick up our local (IP) address. 673 */ 674 init_netbuf(&req); 675 if (rc = ifioctl(tiptr, SIOCGIFADDR, &req)) { 676 nfs_perror(rc, 677 "whoami: couldn't get my IP address: %m.\n"); 678 free_netbuf(&sa); 679 free_netbuf(&req); 680 (void) t_kclose(tiptr, 0); 681 return (rc); 682 } 683 684 /* 685 * Set up the arguments expected by bootparamd. 686 */ 687 arg.client_address.address_type = IP_ADDR_TYPE; 688 bcopy(&((struct sockaddr_in *)req.buf)->sin_addr, 689 &arg.client_address.bp_address.ip_addr, sizeof (struct in_addr)); 690 691 free_netbuf(&req); 692 693 init_netbuf(&bootparam_addr); 694 695 /* 696 * Initial retransmission interval 697 */ 698 tv.tv_sec = DEFAULT_TIMEO; 699 tv.tv_usec = 0; 700 res.client_name = kmem_alloc(MAX_MACHINE_NAME + 1, KM_SLEEP); 701 res.domain_name = kmem_alloc(MAX_MACHINE_NAME + 1, KM_SLEEP); 702 703 /* 704 * Do a broadcast call to find a bootparam daemon that 705 * will tell us our hostname, domainname and any 706 * router that we have to use to talk to our NFS server. 707 */ 708 printed_waiting_msg = 0; 709 do { 710 /* 711 * pmap_rmt_call will first try the SunOS portmapper 712 * and if no reply is received will then try the SVR4 713 * rpcbind. 714 * Either way, `bootparam_addr' will be set to the 715 * correct address for the bootparamd that responds. 716 */ 717 stat = pmap_rmt_call(&dl_udp_netconf, &sa, TRUE, BOOTPARAMPROG, 718 BOOTPARAMVERS, BOOTPARAMPROC_WHOAMI, 719 xdr_bp_whoami_arg, (caddr_t)&arg, 720 xdr_bp_whoami_res, (caddr_t)&res, 721 tv, &bootparam_addr); 722 if (stat == RPC_TIMEDOUT && !printed_waiting_msg) { 723 cmn_err(CE_WARN, 724 "No bootparam server responding; still trying"); 725 printed_waiting_msg = 1; 726 } 727 /* 728 * Retransmission interval for second and subsequent tries. 729 * We expect first pmap_rmt_call to retransmit and backoff to 730 * at least this value. 731 */ 732 tv.tv_sec = WHOAMI_TIMEO; 733 tv.tv_usec = 0; 734 } while (stat == RPC_TIMEDOUT); 735 736 if (printed_waiting_msg) 737 printf("Bootparam response received\n"); 738 739 if (stat != RPC_SUCCESS) { 740 /* XXX should get real error here */ 741 rc = ENXIO; 742 cmn_err(CE_WARN, 743 "whoami: bootparam RPC failed: error %d (%s).", 744 stat, clnt_sperrno(stat)); 745 goto done; 746 } 747 748 namelen = strlen(res.client_name); 749 if (namelen > sizeof (utsname.nodename)) { 750 printf("whoami: hostname too long"); 751 rc = ENAMETOOLONG; 752 goto done; 753 } 754 if (namelen != 0) { 755 bcopy(res.client_name, &utsname.nodename, namelen); 756 cmn_err(CE_CONT, "?hostname: %s\n", utsname.nodename); 757 } else { 758 printf("whoami: no host name\n"); 759 rc = ENXIO; 760 goto done; 761 } 762 763 namelen = strlen(res.domain_name); 764 if (namelen != 0) { 765 if (namelen > SYS_NMLN) { 766 printf("whoami: domainname too long"); 767 rc = ENAMETOOLONG; 768 goto done; 769 } 770 bcopy(res.domain_name, &srpc_domain, namelen); 771 cmn_err(CE_CONT, "?domainname: %s\n", srpc_domain); 772 } else { 773 printf("whoami: no domain name\n"); 774 } 775 776 if (res.router_address.address_type == IP_ADDR_TYPE) { 777 struct rtentry rtentry; 778 struct sockaddr_in *sin; 779 struct in_addr ipaddr; 780 781 bcopy(&res.router_address.bp_address.ip_addr, &ipaddr, 782 sizeof (struct in_addr)); 783 784 if (ipaddr.s_addr != (uint32_t)0) { 785 sin = (struct sockaddr_in *)&rtentry.rt_dst; 786 bzero(sin, sizeof (*sin)); 787 sin->sin_family = AF_INET; 788 789 sin = (struct sockaddr_in *)&rtentry.rt_gateway; 790 bzero(sin, sizeof (*sin)); 791 sin->sin_family = AF_INET; 792 sin->sin_addr.s_addr = ipaddr.s_addr; 793 794 rtentry.rt_flags = RTF_GATEWAY | RTF_UP; 795 796 if (rc = rtioctl(tiptr, SIOCADDRT, &rtentry)) { 797 nfs_perror(rc, 798 "whoami: couldn't add route: %m.\n"); 799 goto done; 800 } 801 } 802 } else { 803 printf("whoami: unknown gateway addr family %d\n", 804 res.router_address.address_type); 805 } 806 done: 807 kmem_free(res.client_name, MAX_MACHINE_NAME + 1); 808 kmem_free(res.domain_name, MAX_MACHINE_NAME + 1); 809 free_netbuf(&sa); 810 (void) t_kclose(tiptr, 0); 811 return (rc); 812 } 813 814 /* 815 * Returns: 816 * 1) The ascii form of our root servers name in `server_name'. 817 * 2) Actual network address of our root server in `server_address'. 818 * 3) Whatever BOOTPARAMPROC_GETFILE returns for the fileid key, in 819 * `server_path'. If fileid is "root", it is the pathname of our 820 * root on the server. 821 */ 822 static int 823 getfile(char *fileid, 824 char *server_name, struct netbuf *server_address, char *server_path) 825 { 826 struct bp_getfile_arg arg; 827 struct bp_getfile_res res; 828 enum clnt_stat stat; 829 int root = FALSE; 830 static int using_cache = FALSE; 831 struct in_addr ipaddr; 832 int timeo = DEFAULT_TIMEO; 833 int retries = DEFAULT_RETRIES; 834 835 if (dldebug) 836 printf("getfile: entered\n"); 837 838 /* 839 * Call cacheinfo() to see whether we can satisfy this request by using 840 * the information cached in memory by the boot program's DHCP 841 * implementation or boot properties rather than consult BOOTPARAMS, 842 * but while preserving the semantics of getfile(). We know that 843 * the server name is SYS_NMLN in length, and server_path is 844 * MAXPATHLEN (pn_alloc). 845 */ 846 if (strcmp(fileid, "root") == 0) { 847 if (cacheinfo(server_name, SYS_NMLN, server_address, 848 server_path, MAXPATHLEN) == 0) { 849 using_cache = TRUE; 850 return (0); 851 } 852 root = TRUE; 853 } 854 855 /* 856 * If using cache, rootopts is already available. 857 */ 858 if (strcmp(fileid, "rootopts") == 0 && using_cache == TRUE) { 859 return (rootopts[0] != 0 ? 0 : ENXIO); 860 } 861 862 if (bootparam_addr.len == 0) { 863 return (ENXIO); 864 } 865 arg.client_name = (caddr_t)&utsname.nodename; 866 arg.file_id = fileid; 867 868 bzero(&res, sizeof (res)); 869 res.server_name = kmem_alloc(MAX_MACHINE_NAME + 1, KM_SLEEP); 870 res.server_path = kmem_alloc(MAX_MACHINE_NAME + 1, KM_SLEEP); 871 872 /* 873 * If we are not looking up the root file, we are looking 874 * up a non-critical option that should timeout quickly. 875 */ 876 if (!root) { 877 timeo = GETFILE_TIMEO; 878 retries = GETFILE_RETRIES; 879 } 880 881 /* 882 * bootparam_addr was filled in by the call to 883 * whoami(), so now send an rpc message to the 884 * bootparam daemon requesting our server information. 885 * Use UDP to talk to bootparms. 886 */ 887 stat = mycallrpc(&dl_udp_netconf, &bootparam_addr, 888 (rpcprog_t)BOOTPARAMPROG, (rpcvers_t)BOOTPARAMVERS, 889 (rpcproc_t)BOOTPARAMPROC_GETFILE, 890 xdr_bp_getfile_arg, (caddr_t)&arg, 891 xdr_bp_getfile_res, (caddr_t)&res, 892 timeo, retries); 893 894 if (stat == RPC_SUCCESS) { 895 (void) strcpy(server_name, res.server_name); 896 (void) strcpy(server_path, res.server_path); 897 } 898 899 kmem_free(res.server_name, MAX_MACHINE_NAME + 1); 900 kmem_free(res.server_path, MAX_MACHINE_NAME + 1); 901 902 if (stat != RPC_SUCCESS) { 903 if (root) 904 cmn_err(CE_WARN, "getfile: RPC failed: error %d (%s).", 905 stat, clnt_sperrno(stat)); 906 return ((stat == RPC_TIMEDOUT) ? ETIMEDOUT : ENXIO); /* XXX */ 907 } 908 909 if (*server_path == '\0') 910 return (EINVAL); 911 912 /* 913 * If the fileid is "root", we must get back a server name, for 914 * other parameters a server name is not required 915 */ 916 if (!root) { 917 if (dldebug) 918 printf("getfile: leaving: non-root\n"); 919 return (0); 920 } 921 922 if (*server_name == '\0') 923 return (EINVAL); 924 925 switch (res.server_address.address_type) { 926 case IP_ADDR_TYPE: 927 /* 928 * server_address is where we will get our root 929 * from. 930 */ 931 ((struct sockaddr_in *)server_address->buf)->sin_family = 932 AF_INET; 933 bcopy(&res.server_address.bp_address.ip_addr, 934 &ipaddr, sizeof (ipaddr)); 935 if (ipaddr.s_addr == 0) 936 return (EINVAL); 937 938 ((struct sockaddr_in *)server_address->buf)->sin_addr.s_addr = 939 ipaddr.s_addr; 940 server_address->len = sizeof (struct sockaddr_in); 941 break; 942 943 default: 944 printf("getfile: unknown address type %d\n", 945 res.server_address.address_type); 946 return (EPROTONOSUPPORT); 947 } 948 if (dldebug) 949 printf("getfile: leaving\n"); 950 return (0); 951 } 952 953 /* 954 * If the boot property "bootp-response" exists, then OBP performed a 955 * successful DHCP lease acquisition for us and left the resultant ACK packet 956 * encoded at that location. 957 * 958 * If no such property exists (or the information is incomplete or garbled), 959 * the function returns -1. 960 */ 961 int 962 dhcpinit(void) 963 { 964 int rc, i; 965 char *p; 966 struct in_addr braddr; 967 struct in_addr subnet; 968 DHCP_OPT *doptp; 969 TIUSER *tiptr; 970 struct sockaddr_in *sin; 971 static int once_only = 0; 972 973 if (once_only == 1) { 974 return (0); 975 } 976 once_only = 1; 977 978 if (dhcack == NULL) { 979 return (-1); 980 } 981 982 if (dldebug) { 983 printf("dhcp: dhcack %p, len %d\n", (void *)dhcack, 984 dhcacklen); 985 } 986 987 pl = kmem_alloc(sizeof (PKT_LIST), KM_SLEEP); 988 pl->len = dhcacklen; 989 pl->pkt = kmem_alloc(pl->len, KM_SLEEP); 990 bcopy(dhcack, pl->pkt, dhcacklen); 991 992 /* 993 * For x86, ifname is not initialized 994 * in the netinstall case and dhcack interface name is 995 * set in strplumb(). So we only copy the name if ifname 996 * is set properly. 997 */ 998 if (ifname[0]) 999 (void) strlcpy(dhcifname, ifname, sizeof (dhcifname)); 1000 1001 /* remember the server_ip in dhcack */ 1002 bcopy((uchar_t *)pl->pkt + 20, dhcp_server_ip, 4); 1003 bzero(pl->opts, (DHCP_LAST_OPT + 1) * sizeof (DHCP_OPT *)); 1004 bzero(pl->vs, (VS_OPTION_END - VS_OPTION_START + 1) * 1005 sizeof (DHCP_OPT *)); 1006 1007 if (dhcp_options_scan(pl, B_TRUE) != 0) { 1008 /* garbled packet */ 1009 cmn_err(CE_WARN, "dhcp: DHCP packet parsing failed"); 1010 kmem_free(pl->pkt, pl->len); 1011 kmem_free(pl, sizeof (PKT_LIST)); 1012 pl = NULL; 1013 return (-1); 1014 } 1015 1016 /* set node name */ 1017 if (pl->opts[CD_HOSTNAME] != NULL) { 1018 doptp = pl->opts[CD_HOSTNAME]; 1019 i = doptp->len; 1020 if (i >= SYS_NMLN) { 1021 cmn_err(CE_WARN, "dhcp: Hostname is too long"); 1022 } else { 1023 bcopy(doptp->value, utsname.nodename, i); 1024 utsname.nodename[i] = '\0'; 1025 if (dldebug) { 1026 printf("hostname is %s\n", 1027 utsname.nodename); 1028 } 1029 } 1030 } 1031 1032 /* Set NIS domain name. */ 1033 p = NULL; 1034 if (pl->opts[CD_NIS_DOMAIN] != NULL) { 1035 doptp = pl->opts[CD_NIS_DOMAIN]; 1036 i = doptp->len; 1037 p = (caddr_t)doptp->value; 1038 } 1039 if (p != NULL) { 1040 if (i > SYS_NMLN) { 1041 cmn_err(CE_WARN, 1042 "dhcp: NIS domainname too long."); 1043 } else { 1044 bcopy(p, srpc_domain, i); 1045 srpc_domain[i] = '\0'; 1046 if (dldebug) 1047 printf("dhcp: NIS domain name is %s\n", 1048 srpc_domain); 1049 } 1050 } 1051 1052 /* fetch netmask */ 1053 if (pl->opts[CD_SUBNETMASK] != NULL) { 1054 doptp = pl->opts[CD_SUBNETMASK]; 1055 if (doptp->len != sizeof (struct in_addr)) { 1056 pl->opts[CD_SUBNETMASK] = NULL; 1057 cmn_err(CE_WARN, "dhcp: netmask option malformed"); 1058 } else { 1059 bcopy(doptp->value, &subnet, sizeof (struct in_addr)); 1060 if (dldebug) 1061 printf("dhcp: setting netmask to: %s\n", 1062 inet_ntoa(subnet)); 1063 } 1064 } else { 1065 struct in_addr myIPaddr; 1066 1067 myIPaddr.s_addr = pl->pkt->yiaddr.s_addr; 1068 cmn_err(CE_WARN, "dhcp: no subnet mask supplied - inferring"); 1069 if (IN_CLASSA(ntohl(myIPaddr.s_addr))) 1070 subnet.s_addr = htonl(IN_CLASSA_NET); 1071 else if (IN_CLASSB(ntohl(myIPaddr.s_addr))) 1072 subnet.s_addr = htonl(IN_CLASSB_NET); 1073 else if (IN_CLASSC(ntohl(myIPaddr.s_addr))) 1074 subnet.s_addr = htonl(IN_CLASSC_NET); 1075 else if (IN_CLASSD(ntohl(myIPaddr.s_addr))) 1076 cmn_err(CE_WARN, "dhcp: bad IP address (%s)", 1077 inet_ntoa(myIPaddr)); 1078 else 1079 subnet.s_addr = htonl(IN_CLASSE_NET); 1080 } 1081 /* and broadcast address */ 1082 if (pl->opts[CD_BROADCASTADDR] != NULL) { 1083 doptp = pl->opts[CD_BROADCASTADDR]; 1084 if (doptp->len != sizeof (struct in_addr)) { 1085 pl->opts[CD_BROADCASTADDR] = NULL; 1086 if (dldebug) 1087 printf("dhcp: broadcast address len %d\n", 1088 doptp->len); 1089 } else { 1090 bcopy(doptp->value, &braddr, sizeof (struct in_addr)); 1091 if (dldebug) 1092 printf("dhcp: setting broadcast addr to: %s\n", 1093 inet_ntoa(braddr)); 1094 } 1095 } else { 1096 if (dldebug) 1097 printf("dhcp: no broadcast address supplied\n"); 1098 braddr.s_addr = htonl(INADDR_BROADCAST); 1099 } 1100 /* and plumb and initialize interface */ 1101 if ((rc = t_kopen((file_t *)NULL, dl_udp_netconf.knc_rdev, 1102 FREAD|FWRITE, &tiptr, CRED())) == 0) { 1103 if (rc = dlifconfig(tiptr, &pl->pkt->yiaddr, &subnet, 1104 &braddr, IFF_DHCPRUNNING)) { 1105 nfs_perror(rc, "dhcp: dlifconfig failed: %m\n"); 1106 kmem_free(pl->pkt, pl->len); 1107 kmem_free(pl, sizeof (PKT_LIST)); 1108 pl = NULL; 1109 (void) t_kclose(tiptr, 0); 1110 return (-1); 1111 } 1112 1113 /* add routes */ 1114 if (pl->opts[CD_ROUTER] != NULL) { 1115 doptp = pl->opts[CD_ROUTER]; 1116 if ((doptp->len % sizeof (struct in_addr)) != 0) { 1117 pl->opts[CD_ROUTER] = NULL; 1118 } else { 1119 int nrouters; 1120 uchar_t *tp; 1121 1122 nrouters = doptp->len / sizeof (struct in_addr); 1123 for (tp = doptp->value, i = 0; i < nrouters; 1124 i++) { 1125 struct in_addr defr; 1126 struct rtentry rtentry; 1127 1128 bcopy(tp, &defr, 1129 sizeof (struct in_addr)); 1130 if (defr.s_addr == 0) 1131 continue; 1132 1133 sin = (struct 1134 sockaddr_in *)&rtentry.rt_dst; 1135 1136 bzero(sin, sizeof (*sin)); 1137 sin->sin_family = AF_INET; 1138 1139 sin = (struct 1140 sockaddr_in *)&rtentry.rt_gateway; 1141 bzero(sin, sizeof (*sin)); 1142 sin->sin_family = AF_INET; 1143 sin->sin_addr = defr; 1144 1145 rtentry.rt_flags = RTF_GATEWAY | RTF_UP; 1146 1147 if (rc = rtioctl(tiptr, SIOCADDRT, 1148 &rtentry)) { 1149 nfs_perror(rc, 1150 "dhcp: couldn't add route " 1151 "to %s: %m.\n", 1152 inet_ntoa(defr)); 1153 continue; 1154 } 1155 if (dldebug) { 1156 printf("dhcp: added route %s\n", 1157 inet_ntoa(defr)); 1158 } 1159 tp += sizeof (struct in_addr); 1160 } 1161 } 1162 } 1163 1164 (void) t_kclose(tiptr, 0); 1165 } 1166 1167 if (dldebug) 1168 printf("dhcpinit: leaving\n"); 1169 1170 return (0); 1171 } 1172 1173 /* 1174 * Initialize nfs mount info from properties and dhcp response. 1175 */ 1176 static void 1177 cacheinit(void) 1178 { 1179 char *str; 1180 DHCP_OPT *doptp; 1181 1182 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1183 DDI_PROP_DONTPASS, BP_SERVER_PATH, &server_path_c); 1184 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1185 DDI_PROP_DONTPASS, BP_SERVER_NAME, &server_name_c); 1186 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1187 DDI_PROP_DONTPASS, BP_SERVER_ROOTOPTS, &str) == DDI_SUCCESS) { 1188 (void) strncpy(rootopts, str, 255); 1189 ddi_prop_free(str); 1190 } 1191 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1192 DDI_PROP_DONTPASS, BP_SERVER_IP, &str) == DDI_SUCCESS) { 1193 if (inet_aton(str, server_ip) != 0) 1194 cmn_err(CE_NOTE, "server_ipaddr %s is invalid\n", 1195 str); 1196 ddi_prop_free(str); 1197 if (dldebug) 1198 printf("server ip is %s\n", 1199 inet_ntoa(*(struct in_addr *)server_ip)); 1200 } 1201 1202 if (pl == NULL) 1203 return; 1204 1205 /* extract root path in server_path */ 1206 if (server_path_c == NULL) { 1207 doptp = pl->vs[VS_NFSMNT_ROOTPATH]; 1208 if (doptp != NULL) { 1209 server_path_c = kmem_alloc(doptp->len + 1, KM_SLEEP); 1210 bcopy(doptp->value, server_path_c, doptp->len); 1211 server_path_c[doptp->len] = '\0'; 1212 if (dldebug) 1213 printf("dhcp: root path %s\n", server_path_c); 1214 } else { 1215 cmn_err(CE_WARN, "dhcp: root server path missing"); 1216 } 1217 } 1218 1219 /* set server_name */ 1220 if (server_name_c == NULL) { 1221 doptp = pl->vs[VS_NFSMNT_ROOTSRVR_NAME]; 1222 if (doptp != NULL) { 1223 server_name_c = kmem_alloc(doptp->len + 1, KM_SLEEP); 1224 bcopy(doptp->value, server_name_c, doptp->len); 1225 server_name_c[doptp->len] = '\0'; 1226 if (dldebug) 1227 printf("dhcp: root server name %s\n", 1228 server_name_c); 1229 } else { 1230 cmn_err(CE_WARN, "dhcp: root server name missing"); 1231 } 1232 } 1233 1234 /* set root server_address */ 1235 if ((*(uint_t *)server_ip) == 0) { 1236 doptp = pl->vs[VS_NFSMNT_ROOTSRVR_IP]; 1237 if (doptp) { 1238 bcopy(doptp->value, server_ip, sizeof (server_ip)); 1239 if (dldebug) { 1240 printf("dhcp: root server IP address %s\n", 1241 inet_ntoa(*(struct in_addr *)server_ip)); 1242 } 1243 } else { 1244 if (dldebug) 1245 cmn_err(CE_CONT, 1246 "dhcp: file server ip address missing," 1247 " fallback to dhcp server as file server"); 1248 bcopy(dhcp_server_ip, server_ip, sizeof (server_ip)); 1249 } 1250 } 1251 1252 /* set root file system mount options */ 1253 if (rootopts[0] == 0) { 1254 doptp = pl->vs[VS_NFSMNT_ROOTOPTS]; 1255 if (doptp != NULL && doptp->len < 255) { 1256 bcopy(doptp->value, rootopts, doptp->len); 1257 rootopts[doptp->len] = '\0'; 1258 if (dldebug) 1259 printf("dhcp: rootopts %s\n", rootopts); 1260 } else if (dldebug) { 1261 printf("dhcp: no rootopts or too long\n"); 1262 /* not an error */ 1263 } 1264 } 1265 1266 /* now we are done with pl, just free it */ 1267 kmem_free(pl->pkt, pl->len); 1268 kmem_free(pl, sizeof (PKT_LIST)); 1269 pl = NULL; 1270 } 1271 1272 static int 1273 cacheinfo(char *name, int namelen, 1274 struct netbuf *server_address, char *rootpath, int pathlen) 1275 { 1276 static int init_done = 0; 1277 struct sockaddr_in *sin; 1278 1279 if (init_done == 0) { 1280 cacheinit(); 1281 init_done = 1; 1282 } 1283 1284 /* server_path is a reliable indicator of cache availability */ 1285 if (server_path_c == NULL) 1286 return (-1); 1287 1288 (void) strncpy(rootpath, server_path_c, pathlen); 1289 if (server_name_c) { 1290 (void) strncpy(name, server_name_c, namelen); 1291 } else { 1292 (void) strncpy(name, "unknown", namelen); 1293 } 1294 1295 sin = (struct sockaddr_in *)server_address->buf; 1296 sin->sin_family = AF_INET; 1297 server_address->len = sizeof (struct sockaddr_in); 1298 bcopy(server_ip, &sin->sin_addr, sizeof (struct in_addr)); 1299 return (0); 1300 } 1301 1302 /* 1303 * Set this interface's IP address and netmask, and bring it up. 1304 */ 1305 static int 1306 dlifconfig(TIUSER *tiptr, struct in_addr *myIPaddr, struct in_addr *mymask, 1307 struct in_addr *mybraddr, uint_t flags) 1308 { 1309 int rc; 1310 struct netbuf sbuf; 1311 struct sockaddr_in sin; 1312 1313 if (dldebug) { 1314 printf("dlifconfig: entered\n"); 1315 printf("dlifconfig: addr %s\n", inet_ntoa(*myIPaddr)); 1316 printf("dlifconfig: mask %s\n", inet_ntoa(*mymask)); 1317 printf("dlifconfig: broadcast %s\n", inet_ntoa(*mybraddr)); 1318 } 1319 1320 bcopy(myIPaddr, &sin.sin_addr, sizeof (struct in_addr)); 1321 sin.sin_family = AF_INET; 1322 sbuf.buf = (caddr_t)&sin; 1323 sbuf.maxlen = sbuf.len = sizeof (sin); 1324 if (rc = ifioctl(tiptr, SIOCSIFADDR, &sbuf)) { 1325 nfs_perror(rc, 1326 "dlifconfig: couldn't set interface net address: %m\n"); 1327 return (rc); 1328 } 1329 1330 if (mybraddr->s_addr != INADDR_BROADCAST) { 1331 bcopy(mybraddr, &sin.sin_addr, sizeof (struct in_addr)); 1332 sin.sin_family = AF_INET; 1333 sbuf.buf = (caddr_t)&sin; 1334 sbuf.maxlen = sbuf.len = sizeof (sin); 1335 if (rc = ifioctl(tiptr, SIOCSIFBRDADDR, &sbuf)) { 1336 nfs_perror(rc, 1337 "dlifconfig: couldn't set interface broadcast addr: %m\n"); 1338 return (rc); 1339 } 1340 } 1341 1342 bcopy(mymask, &sin.sin_addr, sizeof (struct in_addr)); 1343 sin.sin_family = AF_INET; 1344 sbuf.buf = (caddr_t)&sin; 1345 sbuf.maxlen = sbuf.len = sizeof (sin); 1346 if (rc = ifioctl(tiptr, SIOCSIFNETMASK, &sbuf)) { 1347 nfs_perror(rc, 1348 "dlifconfig: couldn't set interface net address: %m\n"); 1349 return (rc); 1350 } 1351 1352 /* 1353 * Now turn on the interface. 1354 */ 1355 if (rc = setifflags(tiptr, IFF_UP | flags)) { 1356 nfs_perror(rc, 1357 "dlifconfig: couldn't enable network interface: %m\n"); 1358 return (rc); 1359 } 1360 1361 if (dldebug) 1362 printf("dlifconfig: returned\n"); 1363 return (0); 1364 } 1365 1366 static char * 1367 inet_ntoa(struct in_addr in) 1368 { 1369 static char b[18]; 1370 unsigned char *p; 1371 1372 p = (unsigned char *)∈ 1373 (void) sprintf(b, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]); 1374 return (b); 1375 } 1376 1377 /* We only deal with a.b.c.d decimal format. ip points to 4 byte storage */ 1378 static int 1379 inet_aton(char *ipstr, uchar_t *ip) 1380 { 1381 int i = 0; 1382 uchar_t val[4] = {0}; 1383 char c = *ipstr; 1384 1385 for (;;) { 1386 if (!isdigit(c)) 1387 return (-1); 1388 for (;;) { 1389 if (!isdigit(c)) 1390 break; 1391 val[i] = val[i] * 10 + (c - '0'); 1392 c = *++ipstr; 1393 } 1394 i++; 1395 if (i == 4) 1396 break; 1397 if (c != '.') 1398 return (-1); 1399 c = *++ipstr; 1400 } 1401 if (c != 0) 1402 return (-1); 1403 bcopy(val, ip, 4); 1404 return (0); 1405 } 1406 1407 #define MAX_ADDR_SIZE 128 1408 1409 /* 1410 * Initialize a netbuf suitable for 1411 * describing an address for the 1412 * transport defined by `tiptr'. 1413 */ 1414 static void 1415 init_netbuf(struct netbuf *nbuf) 1416 { 1417 nbuf->buf = kmem_zalloc(MAX_ADDR_SIZE, KM_SLEEP); 1418 nbuf->maxlen = MAX_ADDR_SIZE; 1419 nbuf->len = 0; 1420 } 1421 1422 static void 1423 free_netbuf(struct netbuf *nbuf) 1424 { 1425 kmem_free(nbuf->buf, nbuf->maxlen); 1426 nbuf->buf = NULL; 1427 nbuf->maxlen = 0; 1428 nbuf->len = 0; 1429 } 1430 1431 static int 1432 rtioctl(TIUSER *tiptr, int cmd, struct rtentry *rtentry) 1433 { 1434 struct strioctl iocb; 1435 int rc; 1436 vnode_t *vp; 1437 1438 iocb.ic_cmd = cmd; 1439 iocb.ic_timout = 0; 1440 iocb.ic_len = sizeof (struct rtentry); 1441 iocb.ic_dp = (caddr_t)rtentry; 1442 1443 vp = tiptr->fp->f_vnode; 1444 rc = kstr_ioctl(vp, I_STR, (intptr_t)&iocb); 1445 if (rc) 1446 nfs_perror(rc, "rtioctl: kstr_ioctl failed: %m\n"); 1447 return (rc); 1448 } 1449 1450 /* 1451 * Send an ioctl down the stream defined 1452 * by `tiptr'. 1453 * 1454 * We isolate the ifreq dependencies in here. The 1455 * ioctl really ought to take a netbuf and be of 1456 * type TRANSPARENT - one day. 1457 */ 1458 static int 1459 ifioctl(TIUSER *tiptr, int cmd, struct netbuf *nbuf) 1460 { 1461 struct strioctl iocb; 1462 int rc; 1463 vnode_t *vp; 1464 struct ifreq ifr; 1465 1466 /* 1467 * Now do the one requested. 1468 */ 1469 if (nbuf->len) 1470 ifr.ifr_addr = *(struct sockaddr *)nbuf->buf; 1471 (void) strncpy((caddr_t)&ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); 1472 iocb.ic_cmd = cmd; 1473 iocb.ic_timout = 0; 1474 iocb.ic_len = sizeof (ifr); 1475 iocb.ic_dp = (caddr_t)𝔦 1476 1477 vp = tiptr->fp->f_vnode; 1478 rc = kstr_ioctl(vp, I_STR, (intptr_t)&iocb); 1479 if (rc) { 1480 nfs_perror(rc, "ifioctl: kstr_ioctl failed: %m\n"); 1481 return (rc); 1482 } 1483 1484 /* 1485 * Set reply length. 1486 */ 1487 if (nbuf->len == 0) { 1488 /* 1489 * GET type. 1490 */ 1491 nbuf->len = sizeof (struct sockaddr); 1492 *(struct sockaddr *)nbuf->buf = ifr.ifr_addr; 1493 } 1494 1495 return (0); 1496 } 1497 1498 static int 1499 setifflags(TIUSER *tiptr, uint_t value) 1500 { 1501 struct ifreq ifr; 1502 int rc; 1503 struct strioctl iocb; 1504 1505 (void) strncpy((caddr_t)&ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); 1506 iocb.ic_cmd = SIOCGIFFLAGS; 1507 iocb.ic_timout = 0; 1508 iocb.ic_len = sizeof (ifr); 1509 iocb.ic_dp = (caddr_t)𝔦 1510 if (rc = kstr_ioctl(tiptr->fp->f_vnode, I_STR, (intptr_t)&iocb)) 1511 return (rc); 1512 1513 ifr.ifr_flags |= value; 1514 iocb.ic_cmd = SIOCSIFFLAGS; 1515 return (kstr_ioctl(tiptr->fp->f_vnode, I_STR, (intptr_t)&iocb)); 1516 } 1517 1518 /* 1519 * REVerse Address Resolution Protocol (revarp) 1520 * is used by a diskless client to find out its 1521 * IP address when all it knows is its Ethernet address. 1522 * 1523 * Open the ethernet driver, attach and bind 1524 * (DL_BIND_REQ) it, and then format a broadcast RARP 1525 * message for it to send. We pick up the reply and 1526 * let the caller set the interface address using SIOCSIFADDR. 1527 */ 1528 static int 1529 revarp_myaddr(TIUSER *tiptr) 1530 { 1531 int rc; 1532 dl_info_ack_t info; 1533 struct sockaddr_in sin; 1534 struct netbuf sbuf; 1535 ldi_handle_t lh; 1536 ldi_ident_t li; 1537 struct netbuf myaddr = {0, 0, NULL}; 1538 1539 if (dldebug) 1540 printf("revarp_myaddr: entered\n"); 1541 1542 if (rc = ldi_ident_from_mod(&modlinkage, &li)) { 1543 nfs_perror(rc, 1544 "revarp_myaddr: ldi_ident_from_mod failed: %m\n"); 1545 return (rc); 1546 } 1547 1548 rc = ldi_open_by_name(ndev_path, FREAD|FWRITE, CRED(), &lh, li); 1549 ldi_ident_release(li); 1550 if (rc) { 1551 nfs_perror(rc, 1552 "revarp_myaddr: ldi_open_by_name failed: %m\n"); 1553 return (rc); 1554 } 1555 1556 if (rc = dl_attach(lh, ifunit)) { 1557 nfs_perror(rc, "revarp_myaddr: dl_attach failed: %m\n"); 1558 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1559 return (rc); 1560 } 1561 1562 if (rc = dl_bind(lh, ETHERTYPE_REVARP, 0, DL_CLDLS, 0)) { 1563 nfs_perror(rc, "revarp_myaddr: dl_bind failed: %m\n"); 1564 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1565 return (rc); 1566 } 1567 1568 if (rc = dl_info(lh, &info)) { 1569 nfs_perror(rc, "revarp_myaddr: dl_info failed: %m\n"); 1570 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1571 return (rc); 1572 } 1573 1574 /* Initialize myaddr */ 1575 myaddr.maxlen = info.dl_addr_length; 1576 myaddr.buf = kmem_alloc(myaddr.maxlen, KM_SLEEP); 1577 1578 revarp_start(lh, &myaddr); 1579 1580 bcopy(myaddr.buf, &sin.sin_addr, myaddr.len); 1581 sin.sin_family = AF_INET; 1582 1583 sbuf.buf = (caddr_t)&sin; 1584 sbuf.maxlen = sbuf.len = sizeof (sin); 1585 if (rc = ifioctl(tiptr, SIOCSIFADDR, &sbuf)) { 1586 nfs_perror(rc, 1587 "revarp_myaddr: couldn't set interface net address: %m\n"); 1588 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1589 kmem_free(myaddr.buf, myaddr.maxlen); 1590 return (rc); 1591 } 1592 1593 /* Now turn on the interface */ 1594 if (rc = setifflags(tiptr, IFF_UP)) { 1595 nfs_perror(rc, 1596 "revarp_myaddr: couldn't enable network interface: %m\n"); 1597 } 1598 1599 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1600 kmem_free(myaddr.buf, myaddr.maxlen); 1601 return (rc); 1602 } 1603 1604 static void 1605 revarp_start(ldi_handle_t lh, struct netbuf *myaddr) 1606 { 1607 struct ether_arp *ea; 1608 int rc; 1609 dl_unitdata_req_t *dl_udata; 1610 mblk_t *bp; 1611 mblk_t *mp; 1612 struct dladdr *dlsap; 1613 static int done = 0; 1614 1615 if (dl_phys_addr(lh, &myether) != 0) { 1616 /* Fallback using per-node address */ 1617 (void) localetheraddr((struct ether_addr *)NULL, &myether); 1618 cmn_err(CE_CONT, "?DLPI failed to get Ethernet address. Using " 1619 "system wide Ethernet address %s\n", 1620 ether_sprintf(&myether)); 1621 } 1622 1623 getreply: 1624 if (myaddr->len != 0) { 1625 cmn_err(CE_CONT, "?Found my IP address: %x (%d.%d.%d.%d)\n", 1626 *(int *)myaddr->buf, 1627 (uchar_t)myaddr->buf[0], (uchar_t)myaddr->buf[1], 1628 (uchar_t)myaddr->buf[2], (uchar_t)myaddr->buf[3]); 1629 return; 1630 } 1631 1632 if (done++ == 0) 1633 cmn_err(CE_CONT, "?Requesting Internet address for %s\n", 1634 ether_sprintf(&myether)); 1635 1636 /* 1637 * Send another RARP request. 1638 */ 1639 if ((mp = allocb(sizeof (dl_unitdata_req_t) + sizeof (*dlsap), 1640 BPRI_HI)) == NULL) { 1641 cmn_err(CE_WARN, "revarp_myaddr: allocb no memory"); 1642 return; 1643 } 1644 if ((bp = allocb(sizeof (struct ether_arp), BPRI_HI)) == NULL) { 1645 cmn_err(CE_WARN, "revarp_myaddr: allocb no memory"); 1646 return; 1647 } 1648 1649 /* 1650 * Format the transmit request part. 1651 */ 1652 mp->b_datap->db_type = M_PROTO; 1653 dl_udata = (dl_unitdata_req_t *)mp->b_wptr; 1654 mp->b_wptr += sizeof (dl_unitdata_req_t) + sizeof (*dlsap); 1655 dl_udata->dl_primitive = DL_UNITDATA_REQ; 1656 dl_udata->dl_dest_addr_length = sizeof (*dlsap); 1657 dl_udata->dl_dest_addr_offset = sizeof (*dl_udata); 1658 dl_udata->dl_priority.dl_min = 0; 1659 dl_udata->dl_priority.dl_max = 0; 1660 1661 dlsap = (struct dladdr *)(mp->b_rptr + sizeof (*dl_udata)); 1662 bcopy(ðerbroadcastaddr, &dlsap->dl_phys, 1663 sizeof (etherbroadcastaddr)); 1664 dlsap->dl_sap = ETHERTYPE_REVARP; 1665 1666 /* 1667 * Format the actual REVARP request. 1668 */ 1669 bzero(bp->b_wptr, sizeof (struct ether_arp)); 1670 ea = (struct ether_arp *)bp->b_wptr; 1671 bp->b_wptr += sizeof (struct ether_arp); 1672 ea->arp_hrd = htons(ARPHRD_ETHER); 1673 ea->arp_pro = htons(ETHERTYPE_IP); 1674 ea->arp_hln = sizeof (ea->arp_sha); /* hardware address length */ 1675 ea->arp_pln = sizeof (ea->arp_spa); /* protocol address length */ 1676 ea->arp_op = htons(REVARP_REQUEST); 1677 ether_copy(&myether, &ea->arp_sha); 1678 ether_copy(&myether, &ea->arp_tha); 1679 1680 mp->b_cont = bp; 1681 1682 if ((rc = ldi_putmsg(lh, mp)) != 0) { 1683 nfs_perror(rc, "revarp_start: ldi_putmsg failed: %m\n"); 1684 return; 1685 } 1686 revarpinput(lh, myaddr); 1687 1688 goto getreply; 1689 } 1690 1691 /* 1692 * Client side Reverse-ARP input 1693 * Server side is handled by user level server 1694 */ 1695 static void 1696 revarpinput(ldi_handle_t lh, struct netbuf *myaddr) 1697 { 1698 struct ether_arp *ea; 1699 mblk_t *bp; 1700 mblk_t *mp; 1701 int rc; 1702 timestruc_t tv, give_up, now; 1703 1704 /* 1705 * Choose the time at which we will give up, and resend our 1706 * request. 1707 */ 1708 gethrestime(&give_up); 1709 give_up.tv_sec += REVARP_TIMEO; 1710 wait: 1711 /* 1712 * Compute new timeout value. 1713 */ 1714 tv = give_up; 1715 gethrestime(&now); 1716 timespecsub(&tv, &now); 1717 /* 1718 * If we don't have at least one full second remaining, give up. 1719 * This means we might wait only just over 4.0 seconds, but that's 1720 * okay. 1721 */ 1722 if (tv.tv_sec <= 0) 1723 return; 1724 rc = ldi_getmsg(lh, &mp, &tv); 1725 if (rc == ETIME) { 1726 goto out; 1727 } else if (rc != 0) { 1728 nfs_perror(rc, "revarpinput: ldi_getmsg failed: %m\n"); 1729 return; 1730 } 1731 1732 if (mp->b_cont == NULL) { 1733 printf("revarpinput: b_cont == NULL\n"); 1734 goto out; 1735 } 1736 1737 if (mp->b_datap->db_type != M_PROTO) { 1738 printf("revarpinput: bad header type %d\n", 1739 mp->b_datap->db_type); 1740 goto out; 1741 } 1742 1743 bp = mp->b_cont; 1744 1745 if (bp->b_wptr - bp->b_rptr < sizeof (*ea)) { 1746 printf("revarpinput: bad data len %d, expect %d\n", 1747 (int)(bp->b_wptr - bp->b_rptr), (int)sizeof (*ea)); 1748 goto out; 1749 } 1750 1751 ea = (struct ether_arp *)bp->b_rptr; 1752 1753 if ((ushort_t)ntohs(ea->arp_pro) != ETHERTYPE_IP) { 1754 /* We could have received another broadcast arp packet. */ 1755 if (dldebug) 1756 printf("revarpinput: bad type %x\n", 1757 (ushort_t)ntohs(ea->arp_pro)); 1758 freemsg(mp); 1759 goto wait; 1760 } 1761 if ((ushort_t)ntohs(ea->arp_op) != REVARP_REPLY) { 1762 /* We could have received a broadcast arp request. */ 1763 if (dldebug) 1764 printf("revarpinput: bad op %x\n", 1765 (ushort_t)ntohs(ea->arp_op)); 1766 freemsg(mp); 1767 goto wait; 1768 } 1769 1770 if (!ether_cmp(&ea->arp_tha, &myether)) { 1771 bcopy(&ea->arp_tpa, myaddr->buf, sizeof (ea->arp_tpa)); 1772 myaddr->len = sizeof (ea->arp_tpa); 1773 } else { 1774 /* We could have gotten a broadcast arp response. */ 1775 if (dldebug) 1776 printf("revarpinput: got reply, but not my address\n"); 1777 freemsg(mp); 1778 goto wait; 1779 } 1780 out: 1781 freemsg(mp); 1782 } 1783 1784 /* 1785 * From rpcsvc/mountxdr.c in SunOS. We can't 1786 * put this into the rpc directory because 1787 * it calls xdr_fhandle() which is in a 1788 * loadable module. 1789 */ 1790 static bool_t 1791 myxdr_fhstatus(XDR *xdrs, struct fhstatus *fhsp) 1792 { 1793 1794 if (!xdr_int(xdrs, &fhsp->fhs_status)) 1795 return (FALSE); 1796 if (fhsp->fhs_status == 0) { 1797 if (!myxdr_fhandle(xdrs, &fhsp->fhs_fh)) 1798 return (FALSE); 1799 } 1800 return (TRUE); 1801 } 1802 1803 /* 1804 * From nfs_xdr.c. 1805 * 1806 * File access handle 1807 * The fhandle struct is treated a opaque data on the wire 1808 */ 1809 static bool_t 1810 myxdr_fhandle(XDR *xdrs, fhandle_t *fh) 1811 { 1812 return (xdr_opaque(xdrs, (caddr_t)fh, NFS_FHSIZE)); 1813 } 1814 1815 static bool_t 1816 myxdr_mountres3(XDR *xdrs, struct mountres3 *objp) 1817 { 1818 if (!myxdr_mountstat3(xdrs, &objp->fhs_status)) 1819 return (FALSE); 1820 switch (objp->fhs_status) { 1821 case MNT_OK: 1822 if (!myxdr_mountres3_ok(xdrs, &objp->mountres3_u.mountinfo)) 1823 return (FALSE); 1824 break; 1825 default: 1826 break; 1827 } 1828 return (TRUE); 1829 } 1830 1831 static bool_t 1832 myxdr_mountstat3(XDR *xdrs, enum mountstat3 *objp) 1833 { 1834 return (xdr_enum(xdrs, (enum_t *)objp)); 1835 } 1836 1837 static bool_t 1838 myxdr_mountres3_ok(XDR *xdrs, struct mountres3_ok *objp) 1839 { 1840 if (!myxdr_fhandle3(xdrs, &objp->fhandle)) 1841 return (FALSE); 1842 if (!xdr_array(xdrs, (char **)&objp->auth_flavors.auth_flavors_val, 1843 (uint_t *)&objp->auth_flavors.auth_flavors_len, ~0, 1844 sizeof (int), (xdrproc_t)xdr_int)) 1845 return (FALSE); 1846 return (TRUE); 1847 } 1848 1849 static bool_t 1850 myxdr_fhandle3(XDR *xdrs, struct fhandle3 *objp) 1851 { 1852 return (xdr_bytes(xdrs, (char **)&objp->fhandle3_val, 1853 (uint_t *)&objp->fhandle3_len, FHSIZE3)); 1854 } 1855 1856 /* 1857 * From SunOS pmap_clnt.c 1858 * 1859 * Port mapper routines: 1860 * pmap_kgetport() - get port number. 1861 * pmap_rmt_call() - indirect call via port mapper. 1862 * 1863 */ 1864 static enum clnt_stat 1865 pmap_kgetport(struct knetconfig *knconf, struct netbuf *call_addr, 1866 rpcprog_t prog, rpcvers_t vers, rpcprot_t prot) 1867 { 1868 ushort_t port; 1869 int tries; 1870 enum clnt_stat stat; 1871 struct pmap pmap_parms; 1872 RPCB rpcb_parms; 1873 char *ua = NULL; 1874 1875 port = 0; 1876 1877 ((struct sockaddr_in *)call_addr->buf)->sin_port = htons(PMAPPORT); 1878 1879 pmap_parms.pm_prog = prog; 1880 pmap_parms.pm_vers = vers; 1881 pmap_parms.pm_prot = prot; 1882 pmap_parms.pm_port = 0; 1883 for (tries = 0; tries < 5; tries++) { 1884 stat = mycallrpc(knconf, call_addr, 1885 PMAPPROG, PMAPVERS, PMAPPROC_GETPORT, 1886 myxdr_pmap, (char *)&pmap_parms, 1887 xdr_u_short, (char *)&port, 1888 DEFAULT_TIMEO, DEFAULT_RETRIES); 1889 1890 if (stat != RPC_TIMEDOUT) 1891 break; 1892 cmn_err(CE_WARN, 1893 "pmap_kgetport: Portmapper not responding; still trying"); 1894 } 1895 1896 if (stat == RPC_PROGUNAVAIL) { 1897 cmn_err(CE_WARN, 1898 "pmap_kgetport: Portmapper failed - trying rpcbind"); 1899 1900 rpcb_parms.r_prog = prog; 1901 rpcb_parms.r_vers = vers; 1902 rpcb_parms.r_netid = knconf->knc_proto; 1903 rpcb_parms.r_addr = rpcb_parms.r_owner = ""; 1904 1905 for (tries = 0; tries < 5; tries++) { 1906 stat = mycallrpc(knconf, call_addr, 1907 RPCBPROG, RPCBVERS, RPCBPROC_GETADDR, 1908 xdr_rpcb, (char *)&rpcb_parms, 1909 xdr_wrapstring, (char *)&ua, 1910 DEFAULT_TIMEO, DEFAULT_RETRIES); 1911 1912 if (stat != RPC_TIMEDOUT) 1913 break; 1914 cmn_err(CE_WARN, 1915 "pmap_kgetport: rpcbind not responding; still trying"); 1916 } 1917 1918 if (stat == RPC_SUCCESS) { 1919 if ((ua != NULL) && (ua[0] != NULL)) { 1920 port = rpc_uaddr2port(AF_INET, ua); 1921 } else { 1922 /* Address unknown */ 1923 stat = RPC_PROGUNAVAIL; 1924 } 1925 } 1926 } 1927 1928 if (stat == RPC_SUCCESS) 1929 ((struct sockaddr_in *)call_addr->buf)->sin_port = ntohs(port); 1930 1931 return (stat); 1932 } 1933 1934 /* 1935 * pmapper remote-call-service interface. 1936 * This routine is used to call the pmapper remote call service 1937 * which will look up a service program in the port maps, and then 1938 * remotely call that routine with the given parameters. This allows 1939 * programs to do a lookup and call in one step. In addition to the call_addr, 1940 * the caller provides a boolean hint about the destination address (TRUE if 1941 * address is a broadcast address, FALSE otherwise). 1942 * 1943 * On return, `call addr' contains the port number for the 1944 * service requested, and `resp_addr' contains its IP address. 1945 */ 1946 static enum clnt_stat 1947 pmap_rmt_call(struct knetconfig *knconf, struct netbuf *call_addr, 1948 bool_t bcast, rpcprog_t progn, rpcvers_t versn, rpcproc_t procn, 1949 xdrproc_t xdrargs, caddr_t argsp, xdrproc_t xdrres, caddr_t resp, 1950 struct timeval tout, struct netbuf *resp_addr) 1951 { 1952 CLIENT *cl; 1953 enum clnt_stat stat; 1954 rpcport_t port; 1955 int rc; 1956 struct rmtcallargs pmap_args; 1957 struct rmtcallres pmap_res; 1958 struct rpcb_rmtcallargs rpcb_args; 1959 struct rpcb_rmtcallres rpcb_res; 1960 char ua[100]; /* XXX */ 1961 1962 ((struct sockaddr_in *)call_addr->buf)->sin_port = htons(PMAPPORT); 1963 1964 rc = clnt_tli_kcreate(knconf, call_addr, PMAPPROG, PMAPVERS, 1965 0, PMAP_RETRIES, CRED(), &cl); 1966 if (rc != 0) { 1967 nfs_perror(rc, 1968 "pmap_rmt_call: clnt_tli_kcreate failed: %m\n"); 1969 return (RPC_SYSTEMERROR); /* XXX */ 1970 } 1971 if (cl == (CLIENT *)NULL) { 1972 panic("pmap_rmt_call: clnt_tli_kcreate failed"); 1973 /* NOTREACHED */ 1974 } 1975 1976 (void) CLNT_CONTROL(cl, CLSET_BCAST, (char *)&bcast); 1977 1978 pmap_args.prog = progn; 1979 pmap_args.vers = versn; 1980 pmap_args.proc = procn; 1981 pmap_args.args_ptr = argsp; 1982 pmap_args.xdr_args = xdrargs; 1983 pmap_res.port_ptr = &port; 1984 pmap_res.results_ptr = resp; 1985 pmap_res.xdr_results = xdrres; 1986 stat = clnt_clts_kcallit_addr(cl, PMAPPROC_CALLIT, 1987 myxdr_rmtcall_args, (caddr_t)&pmap_args, 1988 myxdr_rmtcallres, (caddr_t)&pmap_res, 1989 tout, resp_addr); 1990 1991 if (stat == RPC_SUCCESS) { 1992 ((struct sockaddr_in *)resp_addr->buf)->sin_port = 1993 htons((ushort_t)port); 1994 } 1995 CLNT_DESTROY(cl); 1996 1997 if (stat != RPC_PROGUNAVAIL) 1998 return (stat); 1999 2000 cmn_err(CE_WARN, "pmap_rmt_call: Portmapper failed - trying rpcbind"); 2001 2002 rc = clnt_tli_kcreate(knconf, call_addr, RPCBPROG, RPCBVERS, 2003 0, PMAP_RETRIES, CRED(), &cl); 2004 if (rc != 0) { 2005 nfs_perror(rc, "pmap_rmt_call: clnt_tli_kcreate failed: %m\n"); 2006 return (RPC_SYSTEMERROR); /* XXX */ 2007 } 2008 2009 if (cl == NULL) { 2010 panic("pmap_rmt_call: clnt_tli_kcreate failed"); 2011 /* NOTREACHED */ 2012 } 2013 2014 rpcb_args.prog = progn; 2015 rpcb_args.vers = versn; 2016 rpcb_args.proc = procn; 2017 rpcb_args.args_ptr = argsp; 2018 rpcb_args.xdr_args = xdrargs; 2019 rpcb_res.addr_ptr = ua; 2020 rpcb_res.results_ptr = resp; 2021 rpcb_res.xdr_results = xdrres; 2022 stat = clnt_clts_kcallit_addr(cl, PMAPPROC_CALLIT, 2023 xdr_rpcb_rmtcallargs, (caddr_t)&rpcb_args, 2024 xdr_rpcb_rmtcallres, (caddr_t)&rpcb_res, 2025 tout, resp_addr); 2026 2027 if (stat == RPC_SUCCESS) 2028 ((struct sockaddr_in *)resp_addr->buf)->sin_port = 2029 rpc_uaddr2port(AF_INET, ua); 2030 CLNT_DESTROY(cl); 2031 2032 return (stat); 2033 } 2034 2035 /* 2036 * XDR remote call arguments 2037 * written for XDR_ENCODE direction only 2038 */ 2039 static bool_t 2040 myxdr_rmtcall_args(XDR *xdrs, struct rmtcallargs *cap) 2041 { 2042 uint_t lenposition; 2043 uint_t argposition; 2044 uint_t position; 2045 2046 if (xdr_rpcprog(xdrs, &(cap->prog)) && 2047 xdr_rpcvers(xdrs, &(cap->vers)) && 2048 xdr_rpcproc(xdrs, &(cap->proc))) { 2049 lenposition = XDR_GETPOS(xdrs); 2050 if (!xdr_u_int(xdrs, &cap->arglen)) 2051 return (FALSE); 2052 argposition = XDR_GETPOS(xdrs); 2053 if (!(*(cap->xdr_args))(xdrs, cap->args_ptr)) 2054 return (FALSE); 2055 position = XDR_GETPOS(xdrs); 2056 cap->arglen = (uint_t)position - (uint_t)argposition; 2057 XDR_SETPOS(xdrs, lenposition); 2058 if (!xdr_u_int(xdrs, &cap->arglen)) 2059 return (FALSE); 2060 XDR_SETPOS(xdrs, position); 2061 return (TRUE); 2062 } 2063 return (FALSE); 2064 } 2065 2066 /* 2067 * XDR remote call results 2068 * written for XDR_DECODE direction only 2069 */ 2070 static bool_t 2071 myxdr_rmtcallres(XDR *xdrs, struct rmtcallres *crp) 2072 { 2073 caddr_t port_ptr; 2074 2075 port_ptr = (caddr_t)crp->port_ptr; 2076 if (xdr_reference(xdrs, &port_ptr, sizeof (uint_t), xdr_u_int) && 2077 xdr_u_int(xdrs, &crp->resultslen)) { 2078 crp->port_ptr = (rpcport_t *)port_ptr; 2079 return ((*(crp->xdr_results))(xdrs, crp->results_ptr)); 2080 } 2081 return (FALSE); 2082 } 2083 2084 static bool_t 2085 myxdr_pmap(XDR *xdrs, struct pmap *regs) 2086 { 2087 if (xdr_rpcprog(xdrs, ®s->pm_prog) && 2088 xdr_rpcvers(xdrs, ®s->pm_vers) && 2089 xdr_rpcprot(xdrs, ®s->pm_prot)) 2090 return (xdr_rpcport(xdrs, ®s->pm_port)); 2091 2092 return (FALSE); 2093 } 2094 2095 2096 /* 2097 * From SunOS callrpc.c 2098 */ 2099 static enum clnt_stat 2100 mycallrpc(struct knetconfig *knconf, struct netbuf *call_addr, 2101 rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum, 2102 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out, 2103 int timeo, int retries) 2104 { 2105 CLIENT *cl; 2106 struct timeval tv; 2107 enum clnt_stat cl_stat; 2108 int rc; 2109 2110 rc = clnt_tli_kcreate(knconf, call_addr, prognum, versnum, 2111 0, retries, CRED(), &cl); 2112 if (rc) { 2113 nfs_perror(rc, "mycallrpc: clnt_tli_kcreate failed: %m\n"); 2114 return (RPC_SYSTEMERROR); /* XXX */ 2115 } 2116 tv.tv_sec = timeo; 2117 tv.tv_usec = 0; 2118 cl_stat = CLNT_CALL(cl, procnum, inproc, in, outproc, out, tv); 2119 AUTH_DESTROY(cl->cl_auth); 2120 CLNT_DESTROY(cl); 2121 return (cl_stat); 2122 } 2123 2124 static int 2125 dl_info(ldi_handle_t lh, dl_info_ack_t *info) 2126 { 2127 dl_info_req_t *info_req; 2128 dl_error_ack_t *error_ack; 2129 union DL_primitives *dl_prim; 2130 mblk_t *mp; 2131 int error; 2132 2133 if ((mp = allocb(sizeof (dl_info_req_t), BPRI_MED)) == NULL) { 2134 cmn_err(CE_WARN, "dl_info: allocb failed"); 2135 return (ENOSR); 2136 } 2137 mp->b_datap->db_type = M_PROTO; 2138 2139 info_req = (dl_info_req_t *)mp->b_wptr; 2140 mp->b_wptr += sizeof (dl_info_req_t); 2141 info_req->dl_primitive = DL_INFO_REQ; 2142 2143 (void) ldi_putmsg(lh, mp); 2144 if ((error = ldi_getmsg(lh, &mp, (timestruc_t *)NULL)) != 0) { 2145 nfs_perror(error, "dl_info: ldi_getmsg failed: %m\n"); 2146 return (error); 2147 } 2148 2149 dl_prim = (union DL_primitives *)mp->b_rptr; 2150 switch (dl_prim->dl_primitive) { 2151 case DL_INFO_ACK: 2152 if ((mp->b_wptr-mp->b_rptr) < sizeof (dl_info_ack_t)) { 2153 printf("dl_info: DL_INFO_ACK protocol error\n"); 2154 break; 2155 } 2156 *info = *(dl_info_ack_t *)mp->b_rptr; 2157 freemsg(mp); 2158 return (0); 2159 2160 case DL_ERROR_ACK: 2161 if ((mp->b_wptr-mp->b_rptr) < sizeof (dl_error_ack_t)) { 2162 printf("dl_info: DL_ERROR_ACK protocol error\n"); 2163 break; 2164 } 2165 2166 error_ack = (dl_error_ack_t *)dl_prim; 2167 printf("dl_info: DLPI error %u\n", error_ack->dl_errno); 2168 break; 2169 2170 default: 2171 printf("dl_bind: bad ACK header %u\n", dl_prim->dl_primitive); 2172 break; 2173 } 2174 2175 /* 2176 * Error return only. 2177 */ 2178 freemsg(mp); 2179 return (-1); 2180 } 2181 2182 /* 2183 * Configure the 'default' interface based on existing boot properties. 2184 */ 2185 static int 2186 bp_netconfig(void) 2187 { 2188 char *str; 2189 struct in_addr my_ip, my_netmask, my_router, my_broadcast; 2190 struct sockaddr_in *sin; 2191 TIUSER *tiptr; 2192 int rc; 2193 struct rtentry rtentry; 2194 2195 my_ip.s_addr = my_netmask.s_addr = my_router.s_addr = 0; 2196 2197 /* 2198 * No way of getting this right now. Collude with dlifconfig() 2199 * to let the protocol stack choose. 2200 */ 2201 my_broadcast.s_addr = INADDR_BROADCAST; 2202 2203 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2204 DDI_PROP_DONTPASS, BP_HOST_IP, &str) == DDI_SUCCESS) { 2205 if (inet_aton(str, (uchar_t *)&my_ip) != 0) 2206 cmn_err(CE_NOTE, "host-ip %s is invalid\n", 2207 str); 2208 ddi_prop_free(str); 2209 if (dldebug) 2210 printf("host ip is %s\n", 2211 inet_ntoa(my_ip)); 2212 } 2213 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2214 DDI_PROP_DONTPASS, BP_SUBNET_MASK, &str) == DDI_SUCCESS) { 2215 if (inet_aton(str, (uchar_t *)&my_netmask) != 0) 2216 cmn_err(CE_NOTE, "subnet-mask %s is invalid\n", 2217 str); 2218 ddi_prop_free(str); 2219 if (dldebug) 2220 printf("subnet mask is %s\n", 2221 inet_ntoa(my_netmask)); 2222 } 2223 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2224 DDI_PROP_DONTPASS, BP_ROUTER_IP, &str) == DDI_SUCCESS) { 2225 if (inet_aton(str, (uchar_t *)&my_router) != 0) 2226 cmn_err(CE_NOTE, "router-ip %s is invalid\n", 2227 str); 2228 ddi_prop_free(str); 2229 if (dldebug) 2230 printf("router ip is %s\n", 2231 inet_ntoa(my_router)); 2232 } 2233 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2234 DDI_PROP_DONTPASS, BP_SERVER_PATH, &server_path_c); 2235 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2236 DDI_PROP_DONTPASS, BP_SERVER_NAME, &server_name_c); 2237 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2238 DDI_PROP_DONTPASS, BP_SERVER_ROOTOPTS, &str) == DDI_SUCCESS) { 2239 (void) strlcpy(rootopts, str, sizeof (rootopts)); 2240 ddi_prop_free(str); 2241 } 2242 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2243 DDI_PROP_DONTPASS, BP_SERVER_IP, &str) == DDI_SUCCESS) { 2244 if (inet_aton(str, server_ip) != 0) 2245 cmn_err(CE_NOTE, "server-ip %s is invalid\n", 2246 str); 2247 ddi_prop_free(str); 2248 if (dldebug) 2249 printf("server ip is %s\n", 2250 inet_ntoa(*(struct in_addr *)server_ip)); 2251 } 2252 2253 /* 2254 * We need all of these to configure based on properties. 2255 */ 2256 if ((my_ip.s_addr == 0) || 2257 (my_netmask.s_addr == 0) || 2258 (server_path_c == NULL) || 2259 (server_name_c == NULL) || 2260 (*(uint_t *)server_ip == 0)) 2261 return (-1); 2262 2263 cmn_err(CE_CONT, "?IP address: %s\n", inet_ntoa(my_ip)); 2264 cmn_err(CE_CONT, "?IP netmask: %s\n", inet_ntoa(my_netmask)); 2265 if (my_router.s_addr != 0) 2266 cmn_err(CE_CONT, "?IP router: %s\n", inet_ntoa(my_router)); 2267 cmn_err(CE_CONT, "?NFS server: %s (%s)\n", server_name_c, 2268 inet_ntoa(*(struct in_addr *)server_ip)); 2269 cmn_err(CE_CONT, "?NFS path: %s\n", server_path_c); 2270 2271 /* 2272 * Configure the interface. 2273 */ 2274 if ((rc = t_kopen((file_t *)NULL, dl_udp_netconf.knc_rdev, 2275 FREAD|FWRITE, &tiptr, CRED())) != 0) { 2276 nfs_perror(rc, "bp_netconfig: t_kopen udp failed: %m.\n"); 2277 return (rc); 2278 } 2279 2280 if ((rc = dlifconfig(tiptr, &my_ip, &my_netmask, &my_broadcast, 2281 0)) < 0) { 2282 nfs_perror(rc, "bp_netconfig: dlifconfig failed: %m.\n"); 2283 (void) t_kclose(tiptr, 0); 2284 return (rc); 2285 } 2286 2287 if (my_router.s_addr != 0) { 2288 /* 2289 * Add a default route. 2290 */ 2291 sin = (struct sockaddr_in *)&rtentry.rt_dst; 2292 bzero(sin, sizeof (*sin)); 2293 sin->sin_family = AF_INET; 2294 2295 sin = (struct sockaddr_in *)&rtentry.rt_gateway; 2296 bzero(sin, sizeof (*sin)); 2297 sin->sin_family = AF_INET; 2298 sin->sin_addr = my_router; 2299 2300 rtentry.rt_flags = RTF_GATEWAY | RTF_UP; 2301 2302 if ((rc = rtioctl(tiptr, SIOCADDRT, &rtentry)) != 0) { 2303 nfs_perror(rc, 2304 "bp_netconfig: couldn't add route: %m.\n"); 2305 (void) t_kclose(tiptr, 0); 2306 return (rc); 2307 } 2308 } 2309 2310 (void) t_kclose(tiptr, 0); 2311 2312 return (0); 2313 } 2314 2315 /* 2316 * The network device we will use to boot from is plumbed. Extract the details 2317 * from rootfs. 2318 */ 2319 static void 2320 init_config(void) 2321 { 2322 (void) strlcpy(ndev_path, rootfs.bo_devname, sizeof (ndev_path)); 2323 (void) strlcpy(ifname, rootfs.bo_ifname, sizeof (ifname)); 2324 ifunit = rootfs.bo_ppa; 2325 2326 /* 2327 * Assumes only one linkage array element. 2328 */ 2329 dl_udp_netconf.knc_rdev = 2330 makedevice(clone_major, ddi_name_to_major("udp")); 2331 dl_tcp_netconf.knc_rdev = 2332 makedevice(clone_major, ddi_name_to_major("tcp")); 2333 2334 /* 2335 * Now we bringup the interface. 2336 * Try cached dhcp response first. If it fails, do rarp. 2337 */ 2338 if ((bp_netconfig() != 0) && 2339 (dhcpinit() != 0) && 2340 (whoami() != 0)) 2341 cmn_err(CE_WARN, 2342 "%s: no response from interface", ifname); 2343 else if (dldebug) 2344 printf("init_config: ifname %s is up\n", ifname); 2345 } 2346 2347 /* 2348 * These options are duplicated in cmd/fs.d/nfs/mount/mount.c 2349 * Changes must be made to both lists. 2350 */ 2351 static char *optlist[] = { 2352 #define OPT_RO 0 2353 MNTOPT_RO, 2354 #define OPT_RW 1 2355 MNTOPT_RW, 2356 #define OPT_QUOTA 2 2357 MNTOPT_QUOTA, 2358 #define OPT_NOQUOTA 3 2359 MNTOPT_NOQUOTA, 2360 #define OPT_SOFT 4 2361 MNTOPT_SOFT, 2362 #define OPT_HARD 5 2363 MNTOPT_HARD, 2364 #define OPT_SUID 6 2365 MNTOPT_SUID, 2366 #define OPT_NOSUID 7 2367 MNTOPT_NOSUID, 2368 #define OPT_GRPID 8 2369 MNTOPT_GRPID, 2370 #define OPT_REMOUNT 9 2371 MNTOPT_REMOUNT, 2372 #define OPT_NOSUB 10 2373 MNTOPT_NOSUB, 2374 #define OPT_INTR 11 2375 MNTOPT_INTR, 2376 #define OPT_NOINTR 12 2377 MNTOPT_NOINTR, 2378 #define OPT_PORT 13 2379 MNTOPT_PORT, 2380 #define OPT_SECURE 14 2381 MNTOPT_SECURE, 2382 #define OPT_RSIZE 15 2383 MNTOPT_RSIZE, 2384 #define OPT_WSIZE 16 2385 MNTOPT_WSIZE, 2386 #define OPT_TIMEO 17 2387 MNTOPT_TIMEO, 2388 #define OPT_RETRANS 18 2389 MNTOPT_RETRANS, 2390 #define OPT_ACTIMEO 19 2391 MNTOPT_ACTIMEO, 2392 #define OPT_ACREGMIN 20 2393 MNTOPT_ACREGMIN, 2394 #define OPT_ACREGMAX 21 2395 MNTOPT_ACREGMAX, 2396 #define OPT_ACDIRMIN 22 2397 MNTOPT_ACDIRMIN, 2398 #define OPT_ACDIRMAX 23 2399 MNTOPT_ACDIRMAX, 2400 #define OPT_BG 24 2401 MNTOPT_BG, 2402 #define OPT_FG 25 2403 MNTOPT_FG, 2404 #define OPT_RETRY 26 2405 MNTOPT_RETRY, 2406 #define OPT_NOAC 27 2407 MNTOPT_NOAC, 2408 #define OPT_NOCTO 28 2409 MNTOPT_NOCTO, 2410 #define OPT_LLOCK 29 2411 MNTOPT_LLOCK, 2412 #define OPT_POSIX 30 2413 MNTOPT_POSIX, 2414 #define OPT_VERS 31 2415 MNTOPT_VERS, 2416 #define OPT_PROTO 32 2417 MNTOPT_PROTO, 2418 #define OPT_SEMISOFT 33 2419 MNTOPT_SEMISOFT, 2420 #define OPT_NOPRINT 34 2421 MNTOPT_NOPRINT, 2422 #define OPT_SEC 35 2423 MNTOPT_SEC, 2424 #define OPT_LARGEFILES 36 2425 MNTOPT_LARGEFILES, 2426 #define OPT_NOLARGEFILES 37 2427 MNTOPT_NOLARGEFILES, 2428 #define OPT_PUBLIC 38 2429 MNTOPT_PUBLIC, 2430 #define OPT_DIRECTIO 39 2431 MNTOPT_FORCEDIRECTIO, 2432 #define OPT_NODIRECTIO 40 2433 MNTOPT_NOFORCEDIRECTIO, 2434 #define OPT_XATTR 41 2435 MNTOPT_XATTR, 2436 #define OPT_NOXATTR 42 2437 MNTOPT_NOXATTR, 2438 #define OPT_DEVICES 43 2439 MNTOPT_DEVICES, 2440 #define OPT_NODEVICES 44 2441 MNTOPT_NODEVICES, 2442 #define OPT_SETUID 45 2443 MNTOPT_SETUID, 2444 #define OPT_NOSETUID 46 2445 MNTOPT_NOSETUID, 2446 #define OPT_EXEC 47 2447 MNTOPT_EXEC, 2448 #define OPT_NOEXEC 48 2449 MNTOPT_NOEXEC, 2450 NULL 2451 }; 2452 2453 static int 2454 isdigit(int ch) 2455 { 2456 return (ch >= '0' && ch <= '9'); 2457 } 2458 2459 #define isspace(c) ((c) == ' ' || (c) == '\t' || (c) == '\n') 2460 #define bad(val) (val == NULL || !isdigit(*val)) 2461 2462 static int 2463 atoi(const char *p) 2464 { 2465 int n; 2466 int c, neg = 0; 2467 2468 if (!isdigit(c = *p)) { 2469 while (isspace(c)) 2470 c = *++p; 2471 switch (c) { 2472 case '-': 2473 neg++; 2474 /* FALLTHROUGH */ 2475 case '+': 2476 c = *++p; 2477 } 2478 if (!isdigit(c)) 2479 return (0); 2480 } 2481 for (n = '0' - c; isdigit(c = *++p); ) { 2482 n *= 10; /* two steps to avoid unnecessary overflow */ 2483 n += '0' - c; /* accum neg to avoid surprises at MAX */ 2484 } 2485 return (neg ? n : -n); 2486 } 2487 2488 /* 2489 * Default root read tsize XXX 2490 */ 2491 int nfs_root_rsize = 8 * 1024; /* conservative for dumb NICs */ 2492 int nfs4_root_rsize = 32 * 1024; /* only runs on TCP be aggressive */ 2493 2494 /* 2495 * Default flags: NFSMNT_NOCTO|NFSMNT_LLOCK|NFSMNT_INT 2496 */ 2497 int nfs_rootopts = NFSMNT_NOCTO|NFSMNT_LLOCK|NFSMNT_INT; 2498 2499 static int 2500 init_mountopts(struct nfs_args *args, int version, struct knetconfig **dl_cf, 2501 int *vfsflags) 2502 { 2503 char servername[SYS_NMLN]; 2504 static int first = 0; 2505 struct netbuf server_address; 2506 char *opts, *val; 2507 int vers; 2508 struct knetconfig *cf = *dl_cf; 2509 char rootoptsbuf[256]; 2510 2511 /* 2512 * Set default mount options 2513 */ 2514 args->flags = nfs_rootopts; 2515 args->rsize = 0; 2516 args->flags |= NFSMNT_ACREGMIN; 2517 args->acregmin = ACMINMAX; 2518 args->flags |= NFSMNT_ACREGMAX; 2519 args->acregmax = ACMAXMAX; 2520 args->flags |= NFSMNT_ACDIRMIN; 2521 args->acdirmin = ACMINMAX; 2522 args->flags |= NFSMNT_ACDIRMAX; 2523 args->acdirmax = ACMAXMAX; 2524 2525 *vfsflags = 0; 2526 2527 /* 2528 * Only look up the rootopts the first time, we store this in 2529 * a static buffer but we are guaranteed to be single threaded 2530 * and not reentrant. 2531 */ 2532 if (first == 0) { 2533 first++; 2534 2535 init_netbuf(&server_address); 2536 2537 if (getfile("rootopts", servername, &server_address, 2538 rootopts)) { 2539 rootopts[0] = '\0'; 2540 free_netbuf(&server_address); 2541 goto sanity; 2542 } 2543 free_netbuf(&server_address); 2544 } 2545 2546 if (dldebug) 2547 printf("rootopts = %s\n", rootopts); 2548 2549 /* 2550 * We have to preserve rootopts for second time. 2551 */ 2552 (void) strncpy(rootoptsbuf, rootopts, sizeof (rootoptsbuf)); 2553 rootoptsbuf[sizeof (rootoptsbuf) - 1] = '\0'; 2554 opts = rootoptsbuf; 2555 while (*opts) { 2556 int opt; 2557 2558 switch (opt = getsubopt(&opts, optlist, &val)) { 2559 /* 2560 * Options that are defaults or meaningless so ignored 2561 */ 2562 case OPT_QUOTA: 2563 case OPT_NOQUOTA: 2564 case OPT_SUID: 2565 case OPT_DEVICES: 2566 case OPT_SETUID: 2567 case OPT_BG: 2568 case OPT_FG: 2569 case OPT_RETRY: 2570 case OPT_POSIX: 2571 case OPT_LARGEFILES: 2572 case OPT_XATTR: 2573 case OPT_NOXATTR: 2574 case OPT_EXEC: 2575 break; 2576 case OPT_RO: 2577 *vfsflags |= MS_RDONLY; 2578 break; 2579 case OPT_RW: 2580 *vfsflags &= ~(MS_RDONLY); 2581 break; 2582 case OPT_SOFT: 2583 args->flags |= NFSMNT_SOFT; 2584 args->flags &= ~(NFSMNT_SEMISOFT); 2585 break; 2586 case OPT_SEMISOFT: 2587 args->flags |= NFSMNT_SOFT; 2588 args->flags |= NFSMNT_SEMISOFT; 2589 break; 2590 case OPT_HARD: 2591 args->flags &= ~(NFSMNT_SOFT); 2592 args->flags &= ~(NFSMNT_SEMISOFT); 2593 break; 2594 case OPT_NOSUID: 2595 case OPT_NODEVICES: 2596 case OPT_NOSETUID: 2597 case OPT_NOEXEC: 2598 cmn_err(CE_WARN, 2599 "nfs_dlboot: may not set root partition %s", 2600 optlist[opt]); 2601 break; 2602 case OPT_GRPID: 2603 args->flags |= NFSMNT_GRPID; 2604 break; 2605 case OPT_REMOUNT: 2606 cmn_err(CE_WARN, 2607 "nfs_dlboot: may not remount root partition"); 2608 break; 2609 case OPT_INTR: 2610 args->flags |= NFSMNT_INT; 2611 break; 2612 case OPT_NOINTR: 2613 args->flags &= ~(NFSMNT_INT); 2614 break; 2615 case OPT_NOAC: 2616 args->flags |= NFSMNT_NOAC; 2617 break; 2618 case OPT_PORT: 2619 cmn_err(CE_WARN, 2620 "nfs_dlboot: may not change root port number"); 2621 break; 2622 case OPT_SECURE: 2623 cmn_err(CE_WARN, 2624 "nfs_dlboot: root mounted auth_unix, secure ignored"); 2625 break; 2626 case OPT_NOCTO: 2627 args->flags |= NFSMNT_NOCTO; 2628 break; 2629 case OPT_RSIZE: 2630 if (bad(val)) { 2631 cmn_err(CE_WARN, 2632 "nfs_dlboot: invalid option: rsize"); 2633 break; 2634 } 2635 args->flags |= NFSMNT_RSIZE; 2636 args->rsize = atoi(val); 2637 break; 2638 case OPT_WSIZE: 2639 if (bad(val)) { 2640 cmn_err(CE_WARN, 2641 "nfs_dlboot: invalid option: wsize"); 2642 break; 2643 } 2644 args->flags |= NFSMNT_WSIZE; 2645 args->wsize = atoi(val); 2646 break; 2647 case OPT_TIMEO: 2648 if (bad(val)) { 2649 cmn_err(CE_WARN, 2650 "nfs_dlboot: invalid option: timeo"); 2651 break; 2652 } 2653 args->flags |= NFSMNT_TIMEO; 2654 args->timeo = atoi(val); 2655 break; 2656 case OPT_RETRANS: 2657 if (bad(val)) { 2658 cmn_err(CE_WARN, 2659 "nfs_dlboot: invalid option: retrans"); 2660 break; 2661 } 2662 args->flags |= NFSMNT_RETRANS; 2663 args->retrans = atoi(val); 2664 break; 2665 case OPT_ACTIMEO: 2666 if (bad(val)) { 2667 cmn_err(CE_WARN, 2668 "nfs_dlboot: invalid option: actimeo"); 2669 break; 2670 } 2671 args->flags |= NFSMNT_ACDIRMAX; 2672 args->flags |= NFSMNT_ACREGMAX; 2673 args->flags |= NFSMNT_ACDIRMIN; 2674 args->flags |= NFSMNT_ACREGMIN; 2675 args->acdirmin = args->acregmin = args->acdirmax = 2676 args->acregmax = atoi(val); 2677 break; 2678 case OPT_ACREGMIN: 2679 if (bad(val)) { 2680 cmn_err(CE_WARN, 2681 "nfs_dlboot: invalid option: acregmin"); 2682 break; 2683 } 2684 args->flags |= NFSMNT_ACREGMIN; 2685 args->acregmin = atoi(val); 2686 break; 2687 case OPT_ACREGMAX: 2688 if (bad(val)) { 2689 cmn_err(CE_WARN, 2690 "nfs_dlboot: invalid option: acregmax"); 2691 break; 2692 } 2693 args->flags |= NFSMNT_ACREGMAX; 2694 args->acregmax = atoi(val); 2695 break; 2696 case OPT_ACDIRMIN: 2697 if (bad(val)) { 2698 cmn_err(CE_WARN, 2699 "nfs_dlboot: invalid option: acdirmin"); 2700 break; 2701 } 2702 args->flags |= NFSMNT_ACDIRMIN; 2703 args->acdirmin = atoi(val); 2704 break; 2705 case OPT_ACDIRMAX: 2706 if (bad(val)) { 2707 cmn_err(CE_WARN, 2708 "nfs_dlboot: invalid option: acdirmax"); 2709 break; 2710 } 2711 args->flags |= NFSMNT_ACDIRMAX; 2712 args->acdirmax = atoi(val); 2713 break; 2714 case OPT_LLOCK: 2715 args->flags |= NFSMNT_LLOCK; 2716 break; 2717 case OPT_VERS: 2718 if (bad(val)) { 2719 cmn_err(CE_WARN, 2720 "nfs_dlboot: invalid option: vers"); 2721 break; 2722 } 2723 vers = atoi(val); 2724 /* 2725 * If the requested version is less than what we 2726 * chose, pretend the chosen version doesn't exist 2727 */ 2728 if (vers < version) { 2729 return (EPROTONOSUPPORT); 2730 } 2731 if (vers > version) { 2732 cmn_err(CE_WARN, 2733 "nfs_dlboot: version %d unavailable", 2734 vers); 2735 return (EINVAL); 2736 } 2737 break; 2738 case OPT_PROTO: 2739 /* 2740 * NFSv4 can only run over TCP, if they requested 2741 * UDP pretend v4 doesn't exist, they might not have 2742 * specified a version allowing a fallback to v2 or v3. 2743 */ 2744 if (version == NFS_V4 && strcmp(val, NC_UDP) == 0) 2745 return (EPROTONOSUPPORT); 2746 /* 2747 * TCP is always chosen over UDP, so if the 2748 * requested is the same as the chosen either 2749 * they chose TCP when available or UDP on a UDP 2750 * only server. 2751 */ 2752 if (strcmp(cf->knc_proto, val) == 0) 2753 break; 2754 /* 2755 * If we chose UDP, they must have requested TCP 2756 */ 2757 if (strcmp(cf->knc_proto, NC_TCP) != 0) { 2758 cmn_err(CE_WARN, 2759 "nfs_dlboot: TCP protocol unavailable"); 2760 return (EINVAL); 2761 } 2762 /* 2763 * They can only have requested UDP 2764 */ 2765 if (strcmp(val, NC_UDP) != 0) { 2766 cmn_err(CE_WARN, 2767 "nfs_dlboot: unknown protocol"); 2768 return (EINVAL); 2769 } 2770 *dl_cf = &dl_udp_netconf; 2771 break; 2772 case OPT_NOPRINT: 2773 args->flags |= NFSMNT_NOPRINT; 2774 break; 2775 case OPT_NOLARGEFILES: 2776 cmn_err(CE_WARN, 2777 "nfs_dlboot: NFS can't support nolargefiles"); 2778 break; 2779 case OPT_SEC: 2780 cmn_err(CE_WARN, 2781 "nfs_dlboot: root mounted auth_unix, sec ignored"); 2782 break; 2783 2784 case OPT_DIRECTIO: 2785 args->flags |= NFSMNT_DIRECTIO; 2786 break; 2787 2788 case OPT_NODIRECTIO: 2789 args->flags &= ~(NFSMNT_DIRECTIO); 2790 break; 2791 2792 default: 2793 cmn_err(CE_WARN, 2794 "nfs_dlboot: ignoring invalid option \"%s\"", val); 2795 break; 2796 } 2797 } 2798 sanity: 2799 /* 2800 * Set some sane limits on read size 2801 */ 2802 if (!(args->flags & NFSMNT_RSIZE) || args->rsize == 0) { 2803 /* 2804 * Establish defaults 2805 */ 2806 args->flags |= NFSMNT_RSIZE; 2807 if (version == NFS_V4) 2808 args->rsize = nfs4_root_rsize; 2809 else 2810 args->rsize = nfs_root_rsize; 2811 return (0); 2812 } 2813 /* 2814 * No less than 512 bytes, otherwise it will take forever to boot 2815 */ 2816 if (args->rsize < 512) 2817 args->rsize = 512; 2818 /* 2819 * If we are running over UDP, we cannot exceed 64KB, trim 2820 * to 56KB to allow room for headers. 2821 */ 2822 if (*dl_cf == &dl_udp_netconf && args->rsize > (56 * 1024)) 2823 args->rsize = 56 * 1024; 2824 return (0); 2825 } 2826