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 inetboot 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 int true_dhcacklen; 972 char *ackp; 973 static int once_only = 0; 974 975 if (once_only == 1) { 976 return (0); 977 } 978 once_only = 1; 979 980 if (dhcack == NULL) { 981 return (-1); 982 } 983 984 ackp = (char *)(dhcack + IFNAMSIZ); 985 true_dhcacklen = strlen(ackp); 986 987 /* 988 * Since we expect the "bootp-response" property to have 989 * been encoded via octet_to_hexascii(), its length should 990 * always be even. 991 */ 992 ASSERT((true_dhcacklen % 2) == 0); 993 994 if (dldebug) { 995 printf("dhcp: dhcack %p, len %d\n", (void *)dhcack, 996 true_dhcacklen + IFNAMSIZ); 997 } 998 999 pl = kmem_alloc(sizeof (PKT_LIST), KM_SLEEP); 1000 pl->len = true_dhcacklen / 2; 1001 pl->pkt = kmem_alloc(pl->len, KM_SLEEP); 1002 1003 /* 1004 * Store our interface name in the reserved block at the 1005 * head of our packet. For x86, ifname is not initialized 1006 * in the netinstall case and dhcack interface name is 1007 * set in strplumb(). So we only copy the name if ifname 1008 * is set properly. 1009 */ 1010 if (ifname[0]) 1011 (void) strncpy(dhcack, ifname, IFNAMSIZ - 1); 1012 1013 /* skip over the interface name section */ 1014 if (hexascii_to_octet(ackp, true_dhcacklen, (uchar_t *)pl->pkt, 1015 &(pl->len)) != 0) { 1016 cmn_err(CE_WARN, 1017 "dhcp: boot dhcp cache is corrupted."); 1018 kmem_free(pl->pkt, pl->len); 1019 kmem_free(pl, sizeof (PKT_LIST)); 1020 pl = NULL; 1021 return (-1); 1022 } 1023 1024 /* remember the server_ip in dhcack */ 1025 bcopy((uchar_t *)pl->pkt + 20, dhcp_server_ip, 4); 1026 bzero(pl->opts, (DHCP_LAST_OPT + 1) * sizeof (DHCP_OPT *)); 1027 bzero(pl->vs, (VS_OPTION_END - VS_OPTION_START + 1) * 1028 sizeof (DHCP_OPT *)); 1029 1030 if (dhcp_options_scan(pl, B_TRUE) != 0) { 1031 /* garbled packet */ 1032 cmn_err(CE_WARN, "dhcp: DHCP packet parsing failed"); 1033 kmem_free(pl->pkt, pl->len); 1034 kmem_free(pl, sizeof (PKT_LIST)); 1035 pl = NULL; 1036 return (-1); 1037 } 1038 1039 /* set node name */ 1040 if (pl->opts[CD_HOSTNAME] != NULL) { 1041 doptp = pl->opts[CD_HOSTNAME]; 1042 i = doptp->len; 1043 if (i >= SYS_NMLN) { 1044 cmn_err(CE_WARN, "dhcp: Hostname is too long"); 1045 } else { 1046 bcopy(doptp->value, utsname.nodename, i); 1047 utsname.nodename[i] = '\0'; 1048 if (dldebug) { 1049 printf("hostname is %s\n", 1050 utsname.nodename); 1051 } 1052 } 1053 } 1054 1055 /* Set NIS domain name. */ 1056 p = NULL; 1057 if (pl->opts[CD_NIS_DOMAIN] != NULL) { 1058 doptp = pl->opts[CD_NIS_DOMAIN]; 1059 i = doptp->len; 1060 p = (caddr_t)doptp->value; 1061 } 1062 if (p != NULL) { 1063 if (i > SYS_NMLN) { 1064 cmn_err(CE_WARN, 1065 "dhcp: NIS domainname too long."); 1066 } else { 1067 bcopy(p, srpc_domain, i); 1068 srpc_domain[i] = '\0'; 1069 if (dldebug) 1070 printf("dhcp: NIS domain name is %s\n", 1071 srpc_domain); 1072 } 1073 } 1074 1075 /* fetch netmask */ 1076 if (pl->opts[CD_SUBNETMASK] != NULL) { 1077 doptp = pl->opts[CD_SUBNETMASK]; 1078 if (doptp->len != sizeof (struct in_addr)) { 1079 pl->opts[CD_SUBNETMASK] = NULL; 1080 cmn_err(CE_WARN, "dhcp: netmask option malformed"); 1081 } else { 1082 bcopy(doptp->value, &subnet, sizeof (struct in_addr)); 1083 if (dldebug) 1084 printf("dhcp: setting netmask to: %s\n", 1085 inet_ntoa(subnet)); 1086 } 1087 } else { 1088 struct in_addr myIPaddr; 1089 1090 myIPaddr.s_addr = pl->pkt->yiaddr.s_addr; 1091 cmn_err(CE_WARN, "dhcp: no subnet mask supplied - inferring"); 1092 if (IN_CLASSA(ntohl(myIPaddr.s_addr))) 1093 subnet.s_addr = htonl(IN_CLASSA_NET); 1094 else if (IN_CLASSB(ntohl(myIPaddr.s_addr))) 1095 subnet.s_addr = htonl(IN_CLASSB_NET); 1096 else if (IN_CLASSC(ntohl(myIPaddr.s_addr))) 1097 subnet.s_addr = htonl(IN_CLASSC_NET); 1098 else 1099 cmn_err(CE_WARN, "dhcp: bad IP address (%s)", 1100 inet_ntoa(myIPaddr)); 1101 } 1102 /* and broadcast address */ 1103 if (pl->opts[CD_BROADCASTADDR] != NULL) { 1104 doptp = pl->opts[CD_BROADCASTADDR]; 1105 if (doptp->len != sizeof (struct in_addr)) { 1106 pl->opts[CD_BROADCASTADDR] = NULL; 1107 if (dldebug) 1108 printf("dhcp: broadcast address len %d\n", 1109 doptp->len); 1110 } else { 1111 bcopy(doptp->value, &braddr, sizeof (struct in_addr)); 1112 if (dldebug) 1113 printf("dhcp: setting broadcast addr to: %s\n", 1114 inet_ntoa(braddr)); 1115 } 1116 } else { 1117 if (dldebug) 1118 printf("dhcp: no broadcast address supplied\n"); 1119 braddr.s_addr = htonl(INADDR_BROADCAST); 1120 } 1121 /* and plumb and initialize interface */ 1122 if ((rc = t_kopen((file_t *)NULL, dl_udp_netconf.knc_rdev, 1123 FREAD|FWRITE, &tiptr, CRED())) == 0) { 1124 if (rc = dlifconfig(tiptr, &pl->pkt->yiaddr, &subnet, 1125 &braddr, IFF_DHCPRUNNING)) { 1126 nfs_perror(rc, "dhcp: dlifconfig failed: %m\n"); 1127 kmem_free(pl->pkt, pl->len); 1128 kmem_free(pl, sizeof (PKT_LIST)); 1129 pl = NULL; 1130 (void) t_kclose(tiptr, 0); 1131 return (-1); 1132 } 1133 1134 /* add routes */ 1135 if (pl->opts[CD_ROUTER] != NULL) { 1136 doptp = pl->opts[CD_ROUTER]; 1137 if ((doptp->len % sizeof (struct in_addr)) != 0) { 1138 pl->opts[CD_ROUTER] = NULL; 1139 } else { 1140 int nrouters; 1141 uchar_t *tp; 1142 1143 nrouters = doptp->len / sizeof (struct in_addr); 1144 for (tp = doptp->value, i = 0; i < nrouters; 1145 i++) { 1146 struct in_addr defr; 1147 struct rtentry rtentry; 1148 1149 bcopy(tp, &defr, 1150 sizeof (struct in_addr)); 1151 if (defr.s_addr == 0) 1152 continue; 1153 1154 sin = (struct 1155 sockaddr_in *)&rtentry.rt_dst; 1156 1157 bzero(sin, sizeof (*sin)); 1158 sin->sin_family = AF_INET; 1159 1160 sin = (struct 1161 sockaddr_in *)&rtentry.rt_gateway; 1162 bzero(sin, sizeof (*sin)); 1163 sin->sin_family = AF_INET; 1164 sin->sin_addr = defr; 1165 1166 rtentry.rt_flags = RTF_GATEWAY | RTF_UP; 1167 1168 if (rc = rtioctl(tiptr, SIOCADDRT, 1169 &rtentry)) { 1170 nfs_perror(rc, 1171 "dhcp: couldn't add route " 1172 "to %s: %m.\n", 1173 inet_ntoa(defr)); 1174 continue; 1175 } 1176 if (dldebug) { 1177 printf("dhcp: added route %s\n", 1178 inet_ntoa(defr)); 1179 } 1180 tp += sizeof (struct in_addr); 1181 } 1182 } 1183 } 1184 1185 (void) t_kclose(tiptr, 0); 1186 } 1187 1188 if (dldebug) 1189 printf("dhcpinit: leaving\n"); 1190 1191 return (0); 1192 } 1193 1194 /* 1195 * Initialize nfs mount info from properties and dhcp response. 1196 */ 1197 static void 1198 cacheinit(void) 1199 { 1200 char *str; 1201 DHCP_OPT *doptp; 1202 1203 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1204 DDI_PROP_DONTPASS, BP_SERVER_PATH, &server_path_c); 1205 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1206 DDI_PROP_DONTPASS, BP_SERVER_NAME, &server_name_c); 1207 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1208 DDI_PROP_DONTPASS, BP_SERVER_ROOTOPTS, &str) == DDI_SUCCESS) { 1209 (void) strncpy(rootopts, str, 255); 1210 ddi_prop_free(str); 1211 } 1212 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 1213 DDI_PROP_DONTPASS, BP_SERVER_IP, &str) == DDI_SUCCESS) { 1214 if (inet_aton(str, server_ip) != 0) 1215 cmn_err(CE_NOTE, "server_ipaddr %s is invalid\n", 1216 str); 1217 ddi_prop_free(str); 1218 if (dldebug) 1219 printf("server ip is %s\n", 1220 inet_ntoa(*(struct in_addr *)server_ip)); 1221 } 1222 1223 if (pl == NULL) 1224 return; 1225 1226 /* extract root path in server_path */ 1227 if (server_path_c == NULL) { 1228 doptp = pl->vs[VS_NFSMNT_ROOTPATH]; 1229 if (doptp != NULL) { 1230 server_path_c = kmem_alloc(doptp->len + 1, KM_SLEEP); 1231 bcopy(doptp->value, server_path_c, doptp->len); 1232 server_path_c[doptp->len] = '\0'; 1233 if (dldebug) 1234 printf("dhcp: root path %s\n", server_path_c); 1235 } else { 1236 cmn_err(CE_WARN, "dhcp: root server path missing"); 1237 } 1238 } 1239 1240 /* set server_name */ 1241 if (server_name_c == NULL) { 1242 doptp = pl->vs[VS_NFSMNT_ROOTSRVR_NAME]; 1243 if (doptp != NULL) { 1244 server_name_c = kmem_alloc(doptp->len + 1, KM_SLEEP); 1245 bcopy(doptp->value, server_name_c, doptp->len); 1246 server_name_c[doptp->len] = '\0'; 1247 if (dldebug) 1248 printf("dhcp: root server name %s\n", 1249 server_name_c); 1250 } else { 1251 cmn_err(CE_WARN, "dhcp: root server name missing"); 1252 } 1253 } 1254 1255 /* set root server_address */ 1256 if ((*(uint_t *)server_ip) == 0) { 1257 doptp = pl->vs[VS_NFSMNT_ROOTSRVR_IP]; 1258 if (doptp) { 1259 bcopy(doptp->value, server_ip, sizeof (server_ip)); 1260 if (dldebug) { 1261 printf("dhcp: root server IP address %s\n", 1262 inet_ntoa(*(struct in_addr *)server_ip)); 1263 } 1264 } else { 1265 if (dldebug) 1266 cmn_err(CE_CONT, 1267 "dhcp: file server ip address missing," 1268 " fallback to dhcp server as file server"); 1269 bcopy(dhcp_server_ip, server_ip, sizeof (server_ip)); 1270 } 1271 } 1272 1273 /* set root file system mount options */ 1274 if (rootopts[0] == 0) { 1275 doptp = pl->vs[VS_NFSMNT_ROOTOPTS]; 1276 if (doptp != NULL && doptp->len < 255) { 1277 bcopy(doptp->value, rootopts, doptp->len); 1278 rootopts[doptp->len] = '\0'; 1279 if (dldebug) 1280 printf("dhcp: rootopts %s\n", rootopts); 1281 } else if (dldebug) { 1282 printf("dhcp: no rootopts or too long\n"); 1283 /* not an error */ 1284 } 1285 } 1286 1287 /* now we are done with pl, just free it */ 1288 kmem_free(pl->pkt, pl->len); 1289 kmem_free(pl, sizeof (PKT_LIST)); 1290 pl = NULL; 1291 } 1292 1293 static int 1294 cacheinfo(char *name, int namelen, 1295 struct netbuf *server_address, char *rootpath, int pathlen) 1296 { 1297 static int init_done = 0; 1298 struct sockaddr_in *sin; 1299 1300 if (init_done == 0) { 1301 cacheinit(); 1302 init_done = 1; 1303 } 1304 1305 /* server_path is a reliable indicator of cache availability */ 1306 if (server_path_c == NULL) 1307 return (-1); 1308 1309 (void) strncpy(rootpath, server_path_c, pathlen); 1310 if (server_name_c) { 1311 (void) strncpy(name, server_name_c, namelen); 1312 } else { 1313 (void) strncpy(name, "unknown", namelen); 1314 } 1315 1316 sin = (struct sockaddr_in *)server_address->buf; 1317 sin->sin_family = AF_INET; 1318 server_address->len = sizeof (struct sockaddr_in); 1319 bcopy(server_ip, &sin->sin_addr, sizeof (struct in_addr)); 1320 return (0); 1321 } 1322 1323 /* 1324 * Set this interface's IP address and netmask, and bring it up. 1325 */ 1326 static int 1327 dlifconfig(TIUSER *tiptr, struct in_addr *myIPaddr, struct in_addr *mymask, 1328 struct in_addr *mybraddr, uint_t flags) 1329 { 1330 int rc; 1331 struct netbuf sbuf; 1332 struct sockaddr_in sin; 1333 1334 if (dldebug) { 1335 printf("dlifconfig: entered\n"); 1336 printf("dlifconfig: addr %s\n", inet_ntoa(*myIPaddr)); 1337 printf("dlifconfig: mask %s\n", inet_ntoa(*mymask)); 1338 printf("dlifconfig: broadcast %s\n", inet_ntoa(*mybraddr)); 1339 } 1340 1341 bcopy(myIPaddr, &sin.sin_addr, sizeof (struct in_addr)); 1342 sin.sin_family = AF_INET; 1343 sbuf.buf = (caddr_t)&sin; 1344 sbuf.maxlen = sbuf.len = sizeof (sin); 1345 if (rc = ifioctl(tiptr, SIOCSIFADDR, &sbuf)) { 1346 nfs_perror(rc, 1347 "dlifconfig: couldn't set interface net address: %m\n"); 1348 return (rc); 1349 } 1350 1351 if (mybraddr->s_addr != INADDR_BROADCAST) { 1352 bcopy(mybraddr, &sin.sin_addr, sizeof (struct in_addr)); 1353 sin.sin_family = AF_INET; 1354 sbuf.buf = (caddr_t)&sin; 1355 sbuf.maxlen = sbuf.len = sizeof (sin); 1356 if (rc = ifioctl(tiptr, SIOCSIFBRDADDR, &sbuf)) { 1357 nfs_perror(rc, 1358 "dlifconfig: couldn't set interface broadcast addr: %m\n"); 1359 return (rc); 1360 } 1361 } 1362 1363 bcopy(mymask, &sin.sin_addr, sizeof (struct in_addr)); 1364 sin.sin_family = AF_INET; 1365 sbuf.buf = (caddr_t)&sin; 1366 sbuf.maxlen = sbuf.len = sizeof (sin); 1367 if (rc = ifioctl(tiptr, SIOCSIFNETMASK, &sbuf)) { 1368 nfs_perror(rc, 1369 "dlifconfig: couldn't set interface net address: %m\n"); 1370 return (rc); 1371 } 1372 1373 /* 1374 * Now turn on the interface. 1375 */ 1376 if (rc = setifflags(tiptr, IFF_UP | flags)) { 1377 nfs_perror(rc, 1378 "dlifconfig: couldn't enable network interface: %m\n"); 1379 return (rc); 1380 } 1381 1382 if (dldebug) 1383 printf("dlifconfig: returned\n"); 1384 return (0); 1385 } 1386 1387 static char * 1388 inet_ntoa(struct in_addr in) 1389 { 1390 static char b[18]; 1391 unsigned char *p; 1392 1393 p = (unsigned char *)∈ 1394 (void) sprintf(b, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]); 1395 return (b); 1396 } 1397 1398 /* We only deal with a.b.c.d decimal format. ip points to 4 byte storage */ 1399 static int 1400 inet_aton(char *ipstr, uchar_t *ip) 1401 { 1402 int i = 0; 1403 uchar_t val[4] = {0}; 1404 char c = *ipstr; 1405 1406 for (;;) { 1407 if (!isdigit(c)) 1408 return (-1); 1409 for (;;) { 1410 if (!isdigit(c)) 1411 break; 1412 val[i] = val[i] * 10 + (c - '0'); 1413 c = *++ipstr; 1414 } 1415 i++; 1416 if (i == 4) 1417 break; 1418 if (c != '.') 1419 return (-1); 1420 c = *++ipstr; 1421 } 1422 if (c != 0) 1423 return (-1); 1424 bcopy(val, ip, 4); 1425 return (0); 1426 } 1427 1428 #define MAX_ADDR_SIZE 128 1429 1430 /* 1431 * Initialize a netbuf suitable for 1432 * describing an address for the 1433 * transport defined by `tiptr'. 1434 */ 1435 static void 1436 init_netbuf(struct netbuf *nbuf) 1437 { 1438 nbuf->buf = kmem_zalloc(MAX_ADDR_SIZE, KM_SLEEP); 1439 nbuf->maxlen = MAX_ADDR_SIZE; 1440 nbuf->len = 0; 1441 } 1442 1443 static void 1444 free_netbuf(struct netbuf *nbuf) 1445 { 1446 kmem_free(nbuf->buf, nbuf->maxlen); 1447 nbuf->buf = NULL; 1448 nbuf->maxlen = 0; 1449 nbuf->len = 0; 1450 } 1451 1452 static int 1453 rtioctl(TIUSER *tiptr, int cmd, struct rtentry *rtentry) 1454 { 1455 struct strioctl iocb; 1456 int rc; 1457 vnode_t *vp; 1458 1459 iocb.ic_cmd = cmd; 1460 iocb.ic_timout = 0; 1461 iocb.ic_len = sizeof (struct rtentry); 1462 iocb.ic_dp = (caddr_t)rtentry; 1463 1464 vp = tiptr->fp->f_vnode; 1465 rc = kstr_ioctl(vp, I_STR, (intptr_t)&iocb); 1466 if (rc) 1467 nfs_perror(rc, "rtioctl: kstr_ioctl failed: %m\n"); 1468 return (rc); 1469 } 1470 1471 /* 1472 * Send an ioctl down the stream defined 1473 * by `tiptr'. 1474 * 1475 * We isolate the ifreq dependencies in here. The 1476 * ioctl really ought to take a netbuf and be of 1477 * type TRANSPARENT - one day. 1478 */ 1479 static int 1480 ifioctl(TIUSER *tiptr, int cmd, struct netbuf *nbuf) 1481 { 1482 struct strioctl iocb; 1483 int rc; 1484 vnode_t *vp; 1485 struct ifreq ifr; 1486 1487 /* 1488 * Now do the one requested. 1489 */ 1490 if (nbuf->len) 1491 ifr.ifr_addr = *(struct sockaddr *)nbuf->buf; 1492 (void) strncpy((caddr_t)&ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); 1493 iocb.ic_cmd = cmd; 1494 iocb.ic_timout = 0; 1495 iocb.ic_len = sizeof (ifr); 1496 iocb.ic_dp = (caddr_t)𝔦 1497 1498 vp = tiptr->fp->f_vnode; 1499 rc = kstr_ioctl(vp, I_STR, (intptr_t)&iocb); 1500 if (rc) { 1501 nfs_perror(rc, "ifioctl: kstr_ioctl failed: %m\n"); 1502 return (rc); 1503 } 1504 1505 /* 1506 * Set reply length. 1507 */ 1508 if (nbuf->len == 0) { 1509 /* 1510 * GET type. 1511 */ 1512 nbuf->len = sizeof (struct sockaddr); 1513 *(struct sockaddr *)nbuf->buf = ifr.ifr_addr; 1514 } 1515 1516 return (0); 1517 } 1518 1519 static int 1520 setifflags(TIUSER *tiptr, uint_t value) 1521 { 1522 struct ifreq ifr; 1523 int rc; 1524 struct strioctl iocb; 1525 1526 (void) strncpy((caddr_t)&ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); 1527 iocb.ic_cmd = SIOCGIFFLAGS; 1528 iocb.ic_timout = 0; 1529 iocb.ic_len = sizeof (ifr); 1530 iocb.ic_dp = (caddr_t)𝔦 1531 if (rc = kstr_ioctl(tiptr->fp->f_vnode, I_STR, (intptr_t)&iocb)) 1532 return (rc); 1533 1534 ifr.ifr_flags |= value; 1535 iocb.ic_cmd = SIOCSIFFLAGS; 1536 return (kstr_ioctl(tiptr->fp->f_vnode, I_STR, (intptr_t)&iocb)); 1537 } 1538 1539 /* 1540 * REVerse Address Resolution Protocol (revarp) 1541 * is used by a diskless client to find out its 1542 * IP address when all it knows is its Ethernet address. 1543 * 1544 * Open the ethernet driver, attach and bind 1545 * (DL_BIND_REQ) it, and then format a broadcast RARP 1546 * message for it to send. We pick up the reply and 1547 * let the caller set the interface address using SIOCSIFADDR. 1548 */ 1549 static int 1550 revarp_myaddr(TIUSER *tiptr) 1551 { 1552 int rc; 1553 dl_info_ack_t info; 1554 struct sockaddr_in sin; 1555 struct netbuf sbuf; 1556 ldi_handle_t lh; 1557 ldi_ident_t li; 1558 struct netbuf myaddr = {0, 0, NULL}; 1559 1560 if (dldebug) 1561 printf("revarp_myaddr: entered\n"); 1562 1563 if (rc = ldi_ident_from_mod(&modlinkage, &li)) { 1564 nfs_perror(rc, 1565 "revarp_myaddr: ldi_ident_from_mod failed: %m\n"); 1566 return (rc); 1567 } 1568 1569 rc = ldi_open_by_name(ndev_path, FREAD|FWRITE, CRED(), &lh, li); 1570 ldi_ident_release(li); 1571 if (rc) { 1572 nfs_perror(rc, 1573 "revarp_myaddr: ldi_open_by_name failed: %m\n"); 1574 return (rc); 1575 } 1576 1577 if (rc = dl_attach(lh, ifunit)) { 1578 nfs_perror(rc, "revarp_myaddr: dl_attach failed: %m\n"); 1579 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1580 return (rc); 1581 } 1582 1583 if (rc = dl_bind(lh, ETHERTYPE_REVARP, 0, DL_CLDLS, 0)) { 1584 nfs_perror(rc, "revarp_myaddr: dl_bind failed: %m\n"); 1585 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1586 return (rc); 1587 } 1588 1589 if (rc = dl_info(lh, &info)) { 1590 nfs_perror(rc, "revarp_myaddr: dl_info failed: %m\n"); 1591 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1592 return (rc); 1593 } 1594 1595 /* Initialize myaddr */ 1596 myaddr.maxlen = info.dl_addr_length; 1597 myaddr.buf = kmem_alloc(myaddr.maxlen, KM_SLEEP); 1598 1599 revarp_start(lh, &myaddr); 1600 1601 bcopy(myaddr.buf, &sin.sin_addr, myaddr.len); 1602 sin.sin_family = AF_INET; 1603 1604 sbuf.buf = (caddr_t)&sin; 1605 sbuf.maxlen = sbuf.len = sizeof (sin); 1606 if (rc = ifioctl(tiptr, SIOCSIFADDR, &sbuf)) { 1607 nfs_perror(rc, 1608 "revarp_myaddr: couldn't set interface net address: %m\n"); 1609 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1610 kmem_free(myaddr.buf, myaddr.maxlen); 1611 return (rc); 1612 } 1613 1614 /* Now turn on the interface */ 1615 if (rc = setifflags(tiptr, IFF_UP)) { 1616 nfs_perror(rc, 1617 "revarp_myaddr: couldn't enable network interface: %m\n"); 1618 } 1619 1620 (void) ldi_close(lh, FREAD|FWRITE, CRED()); 1621 kmem_free(myaddr.buf, myaddr.maxlen); 1622 return (rc); 1623 } 1624 1625 static void 1626 revarp_start(ldi_handle_t lh, struct netbuf *myaddr) 1627 { 1628 struct ether_arp *ea; 1629 int rc; 1630 dl_unitdata_req_t *dl_udata; 1631 mblk_t *bp; 1632 mblk_t *mp; 1633 struct dladdr *dlsap; 1634 static int done = 0; 1635 1636 if (dl_phys_addr(lh, &myether) != 0) { 1637 /* Fallback using per-node address */ 1638 (void) localetheraddr((struct ether_addr *)NULL, &myether); 1639 cmn_err(CE_CONT, "?DLPI failed to get Ethernet address. Using " 1640 "system wide Ethernet address %s\n", 1641 ether_sprintf(&myether)); 1642 } 1643 1644 getreply: 1645 if (myaddr->len != 0) { 1646 cmn_err(CE_CONT, "?Found my IP address: %x (%d.%d.%d.%d)\n", 1647 *(int *)myaddr->buf, 1648 (uchar_t)myaddr->buf[0], (uchar_t)myaddr->buf[1], 1649 (uchar_t)myaddr->buf[2], (uchar_t)myaddr->buf[3]); 1650 return; 1651 } 1652 1653 if (done++ == 0) 1654 cmn_err(CE_CONT, "?Requesting Internet address for %s\n", 1655 ether_sprintf(&myether)); 1656 1657 /* 1658 * Send another RARP request. 1659 */ 1660 if ((mp = allocb(sizeof (dl_unitdata_req_t) + sizeof (*dlsap), 1661 BPRI_HI)) == NULL) { 1662 cmn_err(CE_WARN, "revarp_myaddr: allocb no memory"); 1663 return; 1664 } 1665 if ((bp = allocb(sizeof (struct ether_arp), BPRI_HI)) == NULL) { 1666 cmn_err(CE_WARN, "revarp_myaddr: allocb no memory"); 1667 return; 1668 } 1669 1670 /* 1671 * Format the transmit request part. 1672 */ 1673 mp->b_datap->db_type = M_PROTO; 1674 dl_udata = (dl_unitdata_req_t *)mp->b_wptr; 1675 mp->b_wptr += sizeof (dl_unitdata_req_t) + sizeof (*dlsap); 1676 dl_udata->dl_primitive = DL_UNITDATA_REQ; 1677 dl_udata->dl_dest_addr_length = sizeof (*dlsap); 1678 dl_udata->dl_dest_addr_offset = sizeof (*dl_udata); 1679 dl_udata->dl_priority.dl_min = 0; 1680 dl_udata->dl_priority.dl_max = 0; 1681 1682 dlsap = (struct dladdr *)(mp->b_rptr + sizeof (*dl_udata)); 1683 bcopy(ðerbroadcastaddr, &dlsap->dl_phys, 1684 sizeof (etherbroadcastaddr)); 1685 dlsap->dl_sap = ETHERTYPE_REVARP; 1686 1687 /* 1688 * Format the actual REVARP request. 1689 */ 1690 bzero(bp->b_wptr, sizeof (struct ether_arp)); 1691 ea = (struct ether_arp *)bp->b_wptr; 1692 bp->b_wptr += sizeof (struct ether_arp); 1693 ea->arp_hrd = htons(ARPHRD_ETHER); 1694 ea->arp_pro = htons(ETHERTYPE_IP); 1695 ea->arp_hln = sizeof (ea->arp_sha); /* hardware address length */ 1696 ea->arp_pln = sizeof (ea->arp_spa); /* protocol address length */ 1697 ea->arp_op = htons(REVARP_REQUEST); 1698 ether_copy(&myether, &ea->arp_sha); 1699 ether_copy(&myether, &ea->arp_tha); 1700 1701 mp->b_cont = bp; 1702 1703 if ((rc = ldi_putmsg(lh, mp)) != 0) { 1704 nfs_perror(rc, "revarp_start: ldi_putmsg failed: %m\n"); 1705 return; 1706 } 1707 revarpinput(lh, myaddr); 1708 1709 goto getreply; 1710 } 1711 1712 /* 1713 * Client side Reverse-ARP input 1714 * Server side is handled by user level server 1715 */ 1716 static void 1717 revarpinput(ldi_handle_t lh, struct netbuf *myaddr) 1718 { 1719 struct ether_arp *ea; 1720 mblk_t *bp; 1721 mblk_t *mp; 1722 int rc; 1723 timestruc_t tv, give_up, now; 1724 1725 /* 1726 * Choose the time at which we will give up, and resend our 1727 * request. 1728 */ 1729 gethrestime(&give_up); 1730 give_up.tv_sec += REVARP_TIMEO; 1731 wait: 1732 /* 1733 * Compute new timeout value. 1734 */ 1735 tv = give_up; 1736 gethrestime(&now); 1737 timespecsub(&tv, &now); 1738 /* 1739 * If we don't have at least one full second remaining, give up. 1740 * This means we might wait only just over 4.0 seconds, but that's 1741 * okay. 1742 */ 1743 if (tv.tv_sec <= 0) 1744 return; 1745 rc = ldi_getmsg(lh, &mp, &tv); 1746 if (rc == ETIME) { 1747 goto out; 1748 } else if (rc != 0) { 1749 nfs_perror(rc, "revarpinput: ldi_getmsg failed: %m\n"); 1750 return; 1751 } 1752 1753 if (mp->b_cont == NULL) { 1754 printf("revarpinput: b_cont == NULL\n"); 1755 goto out; 1756 } 1757 1758 if (mp->b_datap->db_type != M_PROTO) { 1759 printf("revarpinput: bad header type %d\n", 1760 mp->b_datap->db_type); 1761 goto out; 1762 } 1763 1764 bp = mp->b_cont; 1765 1766 if (bp->b_wptr - bp->b_rptr < sizeof (*ea)) { 1767 printf("revarpinput: bad data len %d, expect %d\n", 1768 (int)(bp->b_wptr - bp->b_rptr), (int)sizeof (*ea)); 1769 goto out; 1770 } 1771 1772 ea = (struct ether_arp *)bp->b_rptr; 1773 1774 if ((ushort_t)ntohs(ea->arp_pro) != ETHERTYPE_IP) { 1775 /* We could have received another broadcast arp packet. */ 1776 if (dldebug) 1777 printf("revarpinput: bad type %x\n", 1778 (ushort_t)ntohs(ea->arp_pro)); 1779 freemsg(mp); 1780 goto wait; 1781 } 1782 if ((ushort_t)ntohs(ea->arp_op) != REVARP_REPLY) { 1783 /* We could have received a broadcast arp request. */ 1784 if (dldebug) 1785 printf("revarpinput: bad op %x\n", 1786 (ushort_t)ntohs(ea->arp_op)); 1787 freemsg(mp); 1788 goto wait; 1789 } 1790 1791 if (!ether_cmp(&ea->arp_tha, &myether)) { 1792 bcopy(&ea->arp_tpa, myaddr->buf, sizeof (ea->arp_tpa)); 1793 myaddr->len = sizeof (ea->arp_tpa); 1794 } else { 1795 /* We could have gotten a broadcast arp response. */ 1796 if (dldebug) 1797 printf("revarpinput: got reply, but not my address\n"); 1798 freemsg(mp); 1799 goto wait; 1800 } 1801 out: 1802 freemsg(mp); 1803 } 1804 1805 /* 1806 * From rpcsvc/mountxdr.c in SunOS. We can't 1807 * put this into the rpc directory because 1808 * it calls xdr_fhandle() which is in a 1809 * loadable module. 1810 */ 1811 static bool_t 1812 myxdr_fhstatus(XDR *xdrs, struct fhstatus *fhsp) 1813 { 1814 1815 if (!xdr_int(xdrs, &fhsp->fhs_status)) 1816 return (FALSE); 1817 if (fhsp->fhs_status == 0) { 1818 if (!myxdr_fhandle(xdrs, &fhsp->fhs_fh)) 1819 return (FALSE); 1820 } 1821 return (TRUE); 1822 } 1823 1824 /* 1825 * From nfs_xdr.c. 1826 * 1827 * File access handle 1828 * The fhandle struct is treated a opaque data on the wire 1829 */ 1830 static bool_t 1831 myxdr_fhandle(XDR *xdrs, fhandle_t *fh) 1832 { 1833 return (xdr_opaque(xdrs, (caddr_t)fh, NFS_FHSIZE)); 1834 } 1835 1836 static bool_t 1837 myxdr_mountres3(XDR *xdrs, struct mountres3 *objp) 1838 { 1839 if (!myxdr_mountstat3(xdrs, &objp->fhs_status)) 1840 return (FALSE); 1841 switch (objp->fhs_status) { 1842 case MNT_OK: 1843 if (!myxdr_mountres3_ok(xdrs, &objp->mountres3_u.mountinfo)) 1844 return (FALSE); 1845 break; 1846 default: 1847 break; 1848 } 1849 return (TRUE); 1850 } 1851 1852 static bool_t 1853 myxdr_mountstat3(XDR *xdrs, enum mountstat3 *objp) 1854 { 1855 return (xdr_enum(xdrs, (enum_t *)objp)); 1856 } 1857 1858 static bool_t 1859 myxdr_mountres3_ok(XDR *xdrs, struct mountres3_ok *objp) 1860 { 1861 if (!myxdr_fhandle3(xdrs, &objp->fhandle)) 1862 return (FALSE); 1863 if (!xdr_array(xdrs, (char **)&objp->auth_flavors.auth_flavors_val, 1864 (uint_t *)&objp->auth_flavors.auth_flavors_len, ~0, 1865 sizeof (int), (xdrproc_t)xdr_int)) 1866 return (FALSE); 1867 return (TRUE); 1868 } 1869 1870 static bool_t 1871 myxdr_fhandle3(XDR *xdrs, struct fhandle3 *objp) 1872 { 1873 return (xdr_bytes(xdrs, (char **)&objp->fhandle3_val, 1874 (uint_t *)&objp->fhandle3_len, FHSIZE3)); 1875 } 1876 1877 /* 1878 * From SunOS pmap_clnt.c 1879 * 1880 * Port mapper routines: 1881 * pmap_kgetport() - get port number. 1882 * pmap_rmt_call() - indirect call via port mapper. 1883 * 1884 */ 1885 static enum clnt_stat 1886 pmap_kgetport(struct knetconfig *knconf, struct netbuf *call_addr, 1887 rpcprog_t prog, rpcvers_t vers, rpcprot_t prot) 1888 { 1889 ushort_t port; 1890 int tries; 1891 enum clnt_stat stat; 1892 struct pmap pmap_parms; 1893 RPCB rpcb_parms; 1894 char *ua = NULL; 1895 1896 port = 0; 1897 1898 ((struct sockaddr_in *)call_addr->buf)->sin_port = htons(PMAPPORT); 1899 1900 pmap_parms.pm_prog = prog; 1901 pmap_parms.pm_vers = vers; 1902 pmap_parms.pm_prot = prot; 1903 pmap_parms.pm_port = 0; 1904 for (tries = 0; tries < 5; tries++) { 1905 stat = mycallrpc(knconf, call_addr, 1906 PMAPPROG, PMAPVERS, PMAPPROC_GETPORT, 1907 myxdr_pmap, (char *)&pmap_parms, 1908 xdr_u_short, (char *)&port, 1909 DEFAULT_TIMEO, DEFAULT_RETRIES); 1910 1911 if (stat != RPC_TIMEDOUT) 1912 break; 1913 cmn_err(CE_WARN, 1914 "pmap_kgetport: Portmapper not responding; still trying"); 1915 } 1916 1917 if (stat == RPC_PROGUNAVAIL) { 1918 cmn_err(CE_WARN, 1919 "pmap_kgetport: Portmapper failed - trying rpcbind"); 1920 1921 rpcb_parms.r_prog = prog; 1922 rpcb_parms.r_vers = vers; 1923 rpcb_parms.r_netid = knconf->knc_proto; 1924 rpcb_parms.r_addr = rpcb_parms.r_owner = ""; 1925 1926 for (tries = 0; tries < 5; tries++) { 1927 stat = mycallrpc(knconf, call_addr, 1928 RPCBPROG, RPCBVERS, RPCBPROC_GETADDR, 1929 xdr_rpcb, (char *)&rpcb_parms, 1930 xdr_wrapstring, (char *)&ua, 1931 DEFAULT_TIMEO, DEFAULT_RETRIES); 1932 1933 if (stat != RPC_TIMEDOUT) 1934 break; 1935 cmn_err(CE_WARN, 1936 "pmap_kgetport: rpcbind not responding; still trying"); 1937 } 1938 1939 if (stat == RPC_SUCCESS) { 1940 if ((ua != NULL) && (ua[0] != NULL)) { 1941 port = rpc_uaddr2port(AF_INET, ua); 1942 } else { 1943 /* Address unknown */ 1944 stat = RPC_PROGUNAVAIL; 1945 } 1946 } 1947 } 1948 1949 if (stat == RPC_SUCCESS) 1950 ((struct sockaddr_in *)call_addr->buf)->sin_port = ntohs(port); 1951 1952 return (stat); 1953 } 1954 1955 /* 1956 * pmapper remote-call-service interface. 1957 * This routine is used to call the pmapper remote call service 1958 * which will look up a service program in the port maps, and then 1959 * remotely call that routine with the given parameters. This allows 1960 * programs to do a lookup and call in one step. In addition to the call_addr, 1961 * the caller provides a boolean hint about the destination address (TRUE if 1962 * address is a broadcast address, FALSE otherwise). 1963 * 1964 * On return, `call addr' contains the port number for the 1965 * service requested, and `resp_addr' contains its IP address. 1966 */ 1967 static enum clnt_stat 1968 pmap_rmt_call(struct knetconfig *knconf, struct netbuf *call_addr, 1969 bool_t bcast, rpcprog_t progn, rpcvers_t versn, rpcproc_t procn, 1970 xdrproc_t xdrargs, caddr_t argsp, xdrproc_t xdrres, caddr_t resp, 1971 struct timeval tout, struct netbuf *resp_addr) 1972 { 1973 CLIENT *cl; 1974 enum clnt_stat stat; 1975 rpcport_t port; 1976 int rc; 1977 struct rmtcallargs pmap_args; 1978 struct rmtcallres pmap_res; 1979 struct rpcb_rmtcallargs rpcb_args; 1980 struct rpcb_rmtcallres rpcb_res; 1981 char ua[100]; /* XXX */ 1982 1983 ((struct sockaddr_in *)call_addr->buf)->sin_port = htons(PMAPPORT); 1984 1985 rc = clnt_tli_kcreate(knconf, call_addr, PMAPPROG, PMAPVERS, 1986 0, PMAP_RETRIES, CRED(), &cl); 1987 if (rc != 0) { 1988 nfs_perror(rc, 1989 "pmap_rmt_call: clnt_tli_kcreate failed: %m\n"); 1990 return (RPC_SYSTEMERROR); /* XXX */ 1991 } 1992 if (cl == (CLIENT *)NULL) { 1993 panic("pmap_rmt_call: clnt_tli_kcreate failed"); 1994 /* NOTREACHED */ 1995 } 1996 1997 (void) CLNT_CONTROL(cl, CLSET_BCAST, (char *)&bcast); 1998 1999 pmap_args.prog = progn; 2000 pmap_args.vers = versn; 2001 pmap_args.proc = procn; 2002 pmap_args.args_ptr = argsp; 2003 pmap_args.xdr_args = xdrargs; 2004 pmap_res.port_ptr = &port; 2005 pmap_res.results_ptr = resp; 2006 pmap_res.xdr_results = xdrres; 2007 stat = clnt_clts_kcallit_addr(cl, PMAPPROC_CALLIT, 2008 myxdr_rmtcall_args, (caddr_t)&pmap_args, 2009 myxdr_rmtcallres, (caddr_t)&pmap_res, 2010 tout, resp_addr); 2011 2012 if (stat == RPC_SUCCESS) { 2013 ((struct sockaddr_in *)resp_addr->buf)->sin_port = 2014 htons((ushort_t)port); 2015 } 2016 CLNT_DESTROY(cl); 2017 2018 if (stat != RPC_PROGUNAVAIL) 2019 return (stat); 2020 2021 cmn_err(CE_WARN, "pmap_rmt_call: Portmapper failed - trying rpcbind"); 2022 2023 rc = clnt_tli_kcreate(knconf, call_addr, RPCBPROG, RPCBVERS, 2024 0, PMAP_RETRIES, CRED(), &cl); 2025 if (rc != 0) { 2026 nfs_perror(rc, "pmap_rmt_call: clnt_tli_kcreate failed: %m\n"); 2027 return (RPC_SYSTEMERROR); /* XXX */ 2028 } 2029 2030 if (cl == NULL) { 2031 panic("pmap_rmt_call: clnt_tli_kcreate failed"); 2032 /* NOTREACHED */ 2033 } 2034 2035 rpcb_args.prog = progn; 2036 rpcb_args.vers = versn; 2037 rpcb_args.proc = procn; 2038 rpcb_args.args_ptr = argsp; 2039 rpcb_args.xdr_args = xdrargs; 2040 rpcb_res.addr_ptr = ua; 2041 rpcb_res.results_ptr = resp; 2042 rpcb_res.xdr_results = xdrres; 2043 stat = clnt_clts_kcallit_addr(cl, PMAPPROC_CALLIT, 2044 xdr_rpcb_rmtcallargs, (caddr_t)&rpcb_args, 2045 xdr_rpcb_rmtcallres, (caddr_t)&rpcb_res, 2046 tout, resp_addr); 2047 2048 if (stat == RPC_SUCCESS) 2049 ((struct sockaddr_in *)resp_addr->buf)->sin_port = 2050 rpc_uaddr2port(AF_INET, ua); 2051 CLNT_DESTROY(cl); 2052 2053 return (stat); 2054 } 2055 2056 /* 2057 * XDR remote call arguments 2058 * written for XDR_ENCODE direction only 2059 */ 2060 static bool_t 2061 myxdr_rmtcall_args(XDR *xdrs, struct rmtcallargs *cap) 2062 { 2063 uint_t lenposition; 2064 uint_t argposition; 2065 uint_t position; 2066 2067 if (xdr_rpcprog(xdrs, &(cap->prog)) && 2068 xdr_rpcvers(xdrs, &(cap->vers)) && 2069 xdr_rpcproc(xdrs, &(cap->proc))) { 2070 lenposition = XDR_GETPOS(xdrs); 2071 if (!xdr_u_int(xdrs, &cap->arglen)) 2072 return (FALSE); 2073 argposition = XDR_GETPOS(xdrs); 2074 if (!(*(cap->xdr_args))(xdrs, cap->args_ptr)) 2075 return (FALSE); 2076 position = XDR_GETPOS(xdrs); 2077 cap->arglen = (uint_t)position - (uint_t)argposition; 2078 XDR_SETPOS(xdrs, lenposition); 2079 if (!xdr_u_int(xdrs, &cap->arglen)) 2080 return (FALSE); 2081 XDR_SETPOS(xdrs, position); 2082 return (TRUE); 2083 } 2084 return (FALSE); 2085 } 2086 2087 /* 2088 * XDR remote call results 2089 * written for XDR_DECODE direction only 2090 */ 2091 static bool_t 2092 myxdr_rmtcallres(XDR *xdrs, struct rmtcallres *crp) 2093 { 2094 caddr_t port_ptr; 2095 2096 port_ptr = (caddr_t)crp->port_ptr; 2097 if (xdr_reference(xdrs, &port_ptr, sizeof (uint_t), xdr_u_int) && 2098 xdr_u_int(xdrs, &crp->resultslen)) { 2099 crp->port_ptr = (rpcport_t *)port_ptr; 2100 return ((*(crp->xdr_results))(xdrs, crp->results_ptr)); 2101 } 2102 return (FALSE); 2103 } 2104 2105 static bool_t 2106 myxdr_pmap(XDR *xdrs, struct pmap *regs) 2107 { 2108 if (xdr_rpcprog(xdrs, ®s->pm_prog) && 2109 xdr_rpcvers(xdrs, ®s->pm_vers) && 2110 xdr_rpcprot(xdrs, ®s->pm_prot)) 2111 return (xdr_rpcport(xdrs, ®s->pm_port)); 2112 2113 return (FALSE); 2114 } 2115 2116 2117 /* 2118 * From SunOS callrpc.c 2119 */ 2120 static enum clnt_stat 2121 mycallrpc(struct knetconfig *knconf, struct netbuf *call_addr, 2122 rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum, 2123 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out, 2124 int timeo, int retries) 2125 { 2126 CLIENT *cl; 2127 struct timeval tv; 2128 enum clnt_stat cl_stat; 2129 int rc; 2130 2131 rc = clnt_tli_kcreate(knconf, call_addr, prognum, versnum, 2132 0, retries, CRED(), &cl); 2133 if (rc) { 2134 nfs_perror(rc, "mycallrpc: clnt_tli_kcreate failed: %m\n"); 2135 return (RPC_SYSTEMERROR); /* XXX */ 2136 } 2137 tv.tv_sec = timeo; 2138 tv.tv_usec = 0; 2139 cl_stat = CLNT_CALL(cl, procnum, inproc, in, outproc, out, tv); 2140 AUTH_DESTROY(cl->cl_auth); 2141 CLNT_DESTROY(cl); 2142 return (cl_stat); 2143 } 2144 2145 static int 2146 dl_info(ldi_handle_t lh, dl_info_ack_t *info) 2147 { 2148 dl_info_req_t *info_req; 2149 dl_error_ack_t *error_ack; 2150 union DL_primitives *dl_prim; 2151 mblk_t *mp; 2152 int error; 2153 2154 if ((mp = allocb(sizeof (dl_info_req_t), BPRI_MED)) == NULL) { 2155 cmn_err(CE_WARN, "dl_info: allocb failed"); 2156 return (ENOSR); 2157 } 2158 mp->b_datap->db_type = M_PROTO; 2159 2160 info_req = (dl_info_req_t *)mp->b_wptr; 2161 mp->b_wptr += sizeof (dl_info_req_t); 2162 info_req->dl_primitive = DL_INFO_REQ; 2163 2164 (void) ldi_putmsg(lh, mp); 2165 if ((error = ldi_getmsg(lh, &mp, (timestruc_t *)NULL)) != 0) { 2166 nfs_perror(error, "dl_info: ldi_getmsg failed: %m\n"); 2167 return (error); 2168 } 2169 2170 dl_prim = (union DL_primitives *)mp->b_rptr; 2171 switch (dl_prim->dl_primitive) { 2172 case DL_INFO_ACK: 2173 if ((mp->b_wptr-mp->b_rptr) < sizeof (dl_info_ack_t)) { 2174 printf("dl_info: DL_INFO_ACK protocol error\n"); 2175 break; 2176 } 2177 *info = *(dl_info_ack_t *)mp->b_rptr; 2178 freemsg(mp); 2179 return (0); 2180 2181 case DL_ERROR_ACK: 2182 if ((mp->b_wptr-mp->b_rptr) < sizeof (dl_error_ack_t)) { 2183 printf("dl_info: DL_ERROR_ACK protocol error\n"); 2184 break; 2185 } 2186 2187 error_ack = (dl_error_ack_t *)dl_prim; 2188 printf("dl_info: DLPI error %u\n", error_ack->dl_errno); 2189 break; 2190 2191 default: 2192 printf("dl_bind: bad ACK header %u\n", dl_prim->dl_primitive); 2193 break; 2194 } 2195 2196 /* 2197 * Error return only. 2198 */ 2199 freemsg(mp); 2200 return (-1); 2201 } 2202 2203 /* 2204 * Configure the 'default' interface based on existing boot properties. 2205 */ 2206 static int 2207 bp_netconfig(void) 2208 { 2209 char *str; 2210 struct in_addr my_ip, my_netmask, my_router, my_broadcast; 2211 struct sockaddr_in *sin; 2212 TIUSER *tiptr; 2213 int rc; 2214 struct rtentry rtentry; 2215 2216 my_ip.s_addr = my_netmask.s_addr = my_router.s_addr = 0; 2217 2218 /* 2219 * No way of getting this right now. Collude with dlifconfig() 2220 * to let the protocol stack choose. 2221 */ 2222 my_broadcast.s_addr = INADDR_BROADCAST; 2223 2224 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2225 DDI_PROP_DONTPASS, BP_HOST_IP, &str) == DDI_SUCCESS) { 2226 if (inet_aton(str, (uchar_t *)&my_ip) != 0) 2227 cmn_err(CE_NOTE, "host-ip %s is invalid\n", 2228 str); 2229 ddi_prop_free(str); 2230 if (dldebug) 2231 printf("host ip is %s\n", 2232 inet_ntoa(my_ip)); 2233 } 2234 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2235 DDI_PROP_DONTPASS, BP_SUBNET_MASK, &str) == DDI_SUCCESS) { 2236 if (inet_aton(str, (uchar_t *)&my_netmask) != 0) 2237 cmn_err(CE_NOTE, "subnet-mask %s is invalid\n", 2238 str); 2239 ddi_prop_free(str); 2240 if (dldebug) 2241 printf("subnet mask is %s\n", 2242 inet_ntoa(my_netmask)); 2243 } 2244 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2245 DDI_PROP_DONTPASS, BP_ROUTER_IP, &str) == DDI_SUCCESS) { 2246 if (inet_aton(str, (uchar_t *)&my_router) != 0) 2247 cmn_err(CE_NOTE, "router-ip %s is invalid\n", 2248 str); 2249 ddi_prop_free(str); 2250 if (dldebug) 2251 printf("router ip is %s\n", 2252 inet_ntoa(my_router)); 2253 } 2254 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2255 DDI_PROP_DONTPASS, BP_SERVER_PATH, &server_path_c); 2256 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2257 DDI_PROP_DONTPASS, BP_SERVER_NAME, &server_name_c); 2258 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2259 DDI_PROP_DONTPASS, BP_SERVER_ROOTOPTS, &str) == DDI_SUCCESS) { 2260 (void) strlcpy(rootopts, str, sizeof (rootopts)); 2261 ddi_prop_free(str); 2262 } 2263 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 2264 DDI_PROP_DONTPASS, BP_SERVER_IP, &str) == DDI_SUCCESS) { 2265 if (inet_aton(str, server_ip) != 0) 2266 cmn_err(CE_NOTE, "server-ip %s is invalid\n", 2267 str); 2268 ddi_prop_free(str); 2269 if (dldebug) 2270 printf("server ip is %s\n", 2271 inet_ntoa(*(struct in_addr *)server_ip)); 2272 } 2273 2274 /* 2275 * We need all of these to configure based on properties. 2276 */ 2277 if ((my_ip.s_addr == 0) || 2278 (my_netmask.s_addr == 0) || 2279 (server_path_c == NULL) || 2280 (server_name_c == NULL) || 2281 (*(uint_t *)server_ip == 0)) 2282 return (-1); 2283 2284 cmn_err(CE_CONT, "?IP address: %s\n", inet_ntoa(my_ip)); 2285 cmn_err(CE_CONT, "?IP netmask: %s\n", inet_ntoa(my_netmask)); 2286 if (my_router.s_addr != 0) 2287 cmn_err(CE_CONT, "?IP router: %s\n", inet_ntoa(my_router)); 2288 cmn_err(CE_CONT, "?NFS server: %s (%s)\n", server_name_c, 2289 inet_ntoa(*(struct in_addr *)server_ip)); 2290 cmn_err(CE_CONT, "?NFS path: %s\n", server_path_c); 2291 2292 /* 2293 * Configure the interface. 2294 */ 2295 if ((rc = t_kopen((file_t *)NULL, dl_udp_netconf.knc_rdev, 2296 FREAD|FWRITE, &tiptr, CRED())) != 0) { 2297 nfs_perror(rc, "bp_netconfig: t_kopen udp failed: %m.\n"); 2298 return (rc); 2299 } 2300 2301 if ((rc = dlifconfig(tiptr, &my_ip, &my_netmask, &my_broadcast, 2302 0)) < 0) { 2303 nfs_perror(rc, "bp_netconfig: dlifconfig failed: %m.\n"); 2304 (void) t_kclose(tiptr, 0); 2305 return (rc); 2306 } 2307 2308 if (my_router.s_addr != 0) { 2309 /* 2310 * Add a default route. 2311 */ 2312 sin = (struct sockaddr_in *)&rtentry.rt_dst; 2313 bzero(sin, sizeof (*sin)); 2314 sin->sin_family = AF_INET; 2315 2316 sin = (struct sockaddr_in *)&rtentry.rt_gateway; 2317 bzero(sin, sizeof (*sin)); 2318 sin->sin_family = AF_INET; 2319 sin->sin_addr = my_router; 2320 2321 rtentry.rt_flags = RTF_GATEWAY | RTF_UP; 2322 2323 if ((rc = rtioctl(tiptr, SIOCADDRT, &rtentry)) != 0) { 2324 nfs_perror(rc, 2325 "bp_netconfig: couldn't add route: %m.\n"); 2326 (void) t_kclose(tiptr, 0); 2327 return (rc); 2328 } 2329 } 2330 2331 (void) t_kclose(tiptr, 0); 2332 2333 return (0); 2334 } 2335 2336 /* 2337 * The network device we will use to boot from is plumbed. Extract the details 2338 * from rootfs. 2339 */ 2340 static void 2341 init_config(void) 2342 { 2343 (void) strlcpy(ndev_path, rootfs.bo_devname, sizeof (ndev_path)); 2344 (void) strlcpy(ifname, rootfs.bo_ifname, sizeof (ifname)); 2345 ifunit = rootfs.bo_ppa; 2346 2347 /* 2348 * Assumes only one linkage array element. 2349 */ 2350 dl_udp_netconf.knc_rdev = 2351 makedevice(clone_major, ddi_name_to_major("udp")); 2352 dl_tcp_netconf.knc_rdev = 2353 makedevice(clone_major, ddi_name_to_major("tcp")); 2354 2355 /* 2356 * Now we bringup the interface. 2357 * Try cached dhcp response first. If it fails, do rarp. 2358 */ 2359 if ((bp_netconfig() != 0) && 2360 (dhcpinit() != 0) && 2361 (whoami() != 0)) 2362 cmn_err(CE_WARN, 2363 "%s: no response from interface", ifname); 2364 else if (dldebug) 2365 printf("init_config: ifname %s is up\n", ifname); 2366 } 2367 2368 /* 2369 * These options are duplicated in cmd/fs.d/nfs/mount/mount.c 2370 * Changes must be made to both lists. 2371 */ 2372 static char *optlist[] = { 2373 #define OPT_RO 0 2374 MNTOPT_RO, 2375 #define OPT_RW 1 2376 MNTOPT_RW, 2377 #define OPT_QUOTA 2 2378 MNTOPT_QUOTA, 2379 #define OPT_NOQUOTA 3 2380 MNTOPT_NOQUOTA, 2381 #define OPT_SOFT 4 2382 MNTOPT_SOFT, 2383 #define OPT_HARD 5 2384 MNTOPT_HARD, 2385 #define OPT_SUID 6 2386 MNTOPT_SUID, 2387 #define OPT_NOSUID 7 2388 MNTOPT_NOSUID, 2389 #define OPT_GRPID 8 2390 MNTOPT_GRPID, 2391 #define OPT_REMOUNT 9 2392 MNTOPT_REMOUNT, 2393 #define OPT_NOSUB 10 2394 MNTOPT_NOSUB, 2395 #define OPT_INTR 11 2396 MNTOPT_INTR, 2397 #define OPT_NOINTR 12 2398 MNTOPT_NOINTR, 2399 #define OPT_PORT 13 2400 MNTOPT_PORT, 2401 #define OPT_SECURE 14 2402 MNTOPT_SECURE, 2403 #define OPT_RSIZE 15 2404 MNTOPT_RSIZE, 2405 #define OPT_WSIZE 16 2406 MNTOPT_WSIZE, 2407 #define OPT_TIMEO 17 2408 MNTOPT_TIMEO, 2409 #define OPT_RETRANS 18 2410 MNTOPT_RETRANS, 2411 #define OPT_ACTIMEO 19 2412 MNTOPT_ACTIMEO, 2413 #define OPT_ACREGMIN 20 2414 MNTOPT_ACREGMIN, 2415 #define OPT_ACREGMAX 21 2416 MNTOPT_ACREGMAX, 2417 #define OPT_ACDIRMIN 22 2418 MNTOPT_ACDIRMIN, 2419 #define OPT_ACDIRMAX 23 2420 MNTOPT_ACDIRMAX, 2421 #define OPT_BG 24 2422 MNTOPT_BG, 2423 #define OPT_FG 25 2424 MNTOPT_FG, 2425 #define OPT_RETRY 26 2426 MNTOPT_RETRY, 2427 #define OPT_NOAC 27 2428 MNTOPT_NOAC, 2429 #define OPT_NOCTO 28 2430 MNTOPT_NOCTO, 2431 #define OPT_LLOCK 29 2432 MNTOPT_LLOCK, 2433 #define OPT_POSIX 30 2434 MNTOPT_POSIX, 2435 #define OPT_VERS 31 2436 MNTOPT_VERS, 2437 #define OPT_PROTO 32 2438 MNTOPT_PROTO, 2439 #define OPT_SEMISOFT 33 2440 MNTOPT_SEMISOFT, 2441 #define OPT_NOPRINT 34 2442 MNTOPT_NOPRINT, 2443 #define OPT_SEC 35 2444 MNTOPT_SEC, 2445 #define OPT_LARGEFILES 36 2446 MNTOPT_LARGEFILES, 2447 #define OPT_NOLARGEFILES 37 2448 MNTOPT_NOLARGEFILES, 2449 #define OPT_PUBLIC 38 2450 MNTOPT_PUBLIC, 2451 #define OPT_DIRECTIO 39 2452 MNTOPT_FORCEDIRECTIO, 2453 #define OPT_NODIRECTIO 40 2454 MNTOPT_NOFORCEDIRECTIO, 2455 #define OPT_XATTR 41 2456 MNTOPT_XATTR, 2457 #define OPT_NOXATTR 42 2458 MNTOPT_NOXATTR, 2459 #define OPT_DEVICES 43 2460 MNTOPT_DEVICES, 2461 #define OPT_NODEVICES 44 2462 MNTOPT_NODEVICES, 2463 #define OPT_SETUID 45 2464 MNTOPT_SETUID, 2465 #define OPT_NOSETUID 46 2466 MNTOPT_NOSETUID, 2467 #define OPT_EXEC 47 2468 MNTOPT_EXEC, 2469 #define OPT_NOEXEC 48 2470 MNTOPT_NOEXEC, 2471 NULL 2472 }; 2473 2474 static int 2475 isdigit(int ch) 2476 { 2477 return (ch >= '0' && ch <= '9'); 2478 } 2479 2480 #define isspace(c) ((c) == ' ' || (c) == '\t' || (c) == '\n') 2481 #define bad(val) (val == NULL || !isdigit(*val)) 2482 2483 static int 2484 atoi(const char *p) 2485 { 2486 int n; 2487 int c, neg = 0; 2488 2489 if (!isdigit(c = *p)) { 2490 while (isspace(c)) 2491 c = *++p; 2492 switch (c) { 2493 case '-': 2494 neg++; 2495 /* FALLTHROUGH */ 2496 case '+': 2497 c = *++p; 2498 } 2499 if (!isdigit(c)) 2500 return (0); 2501 } 2502 for (n = '0' - c; isdigit(c = *++p); ) { 2503 n *= 10; /* two steps to avoid unnecessary overflow */ 2504 n += '0' - c; /* accum neg to avoid surprises at MAX */ 2505 } 2506 return (neg ? n : -n); 2507 } 2508 2509 /* 2510 * Default root read tsize XXX 2511 */ 2512 int nfs_root_rsize = 8 * 1024; /* conservative for dumb NICs */ 2513 int nfs4_root_rsize = 32 * 1024; /* only runs on TCP be aggressive */ 2514 2515 /* 2516 * Default flags: NFSMNT_NOCTO|NFSMNT_LLOCK|NFSMNT_INT 2517 */ 2518 int nfs_rootopts = NFSMNT_NOCTO|NFSMNT_LLOCK|NFSMNT_INT; 2519 2520 static int 2521 init_mountopts(struct nfs_args *args, int version, struct knetconfig **dl_cf, 2522 int *vfsflags) 2523 { 2524 char servername[SYS_NMLN]; 2525 static int first = 0; 2526 struct netbuf server_address; 2527 char *opts, *val; 2528 int vers; 2529 struct knetconfig *cf = *dl_cf; 2530 char rootoptsbuf[256]; 2531 2532 /* 2533 * Set default mount options 2534 */ 2535 args->flags = nfs_rootopts; 2536 args->rsize = 0; 2537 args->flags |= NFSMNT_ACREGMIN; 2538 args->acregmin = ACMINMAX; 2539 args->flags |= NFSMNT_ACREGMAX; 2540 args->acregmax = ACMAXMAX; 2541 args->flags |= NFSMNT_ACDIRMIN; 2542 args->acdirmin = ACMINMAX; 2543 args->flags |= NFSMNT_ACDIRMAX; 2544 args->acdirmax = ACMAXMAX; 2545 2546 *vfsflags = 0; 2547 2548 /* 2549 * Only look up the rootopts the first time, we store this in 2550 * a static buffer but we are guaranteed to be single threaded 2551 * and not reentrant. 2552 */ 2553 if (first == 0) { 2554 first++; 2555 2556 init_netbuf(&server_address); 2557 2558 if (getfile("rootopts", servername, &server_address, 2559 rootopts)) { 2560 rootopts[0] = '\0'; 2561 free_netbuf(&server_address); 2562 goto sanity; 2563 } 2564 free_netbuf(&server_address); 2565 } 2566 2567 if (dldebug) 2568 printf("rootopts = %s\n", rootopts); 2569 2570 /* 2571 * We have to preserve rootopts for second time. 2572 */ 2573 (void) strncpy(rootoptsbuf, rootopts, sizeof (rootoptsbuf)); 2574 rootoptsbuf[sizeof (rootoptsbuf) - 1] = '\0'; 2575 opts = rootoptsbuf; 2576 while (*opts) { 2577 int opt; 2578 2579 switch (opt = getsubopt(&opts, optlist, &val)) { 2580 /* 2581 * Options that are defaults or meaningless so ignored 2582 */ 2583 case OPT_QUOTA: 2584 case OPT_NOQUOTA: 2585 case OPT_SUID: 2586 case OPT_DEVICES: 2587 case OPT_SETUID: 2588 case OPT_BG: 2589 case OPT_FG: 2590 case OPT_RETRY: 2591 case OPT_POSIX: 2592 case OPT_LARGEFILES: 2593 case OPT_XATTR: 2594 case OPT_NOXATTR: 2595 case OPT_EXEC: 2596 break; 2597 case OPT_RO: 2598 *vfsflags |= MS_RDONLY; 2599 break; 2600 case OPT_RW: 2601 *vfsflags &= ~(MS_RDONLY); 2602 break; 2603 case OPT_SOFT: 2604 args->flags |= NFSMNT_SOFT; 2605 args->flags &= ~(NFSMNT_SEMISOFT); 2606 break; 2607 case OPT_SEMISOFT: 2608 args->flags |= NFSMNT_SOFT; 2609 args->flags |= NFSMNT_SEMISOFT; 2610 break; 2611 case OPT_HARD: 2612 args->flags &= ~(NFSMNT_SOFT); 2613 args->flags &= ~(NFSMNT_SEMISOFT); 2614 break; 2615 case OPT_NOSUID: 2616 case OPT_NODEVICES: 2617 case OPT_NOSETUID: 2618 case OPT_NOEXEC: 2619 cmn_err(CE_WARN, 2620 "nfs_dlboot: may not set root partition %s", 2621 optlist[opt]); 2622 break; 2623 case OPT_GRPID: 2624 args->flags |= NFSMNT_GRPID; 2625 break; 2626 case OPT_REMOUNT: 2627 cmn_err(CE_WARN, 2628 "nfs_dlboot: may not remount root partition"); 2629 break; 2630 case OPT_INTR: 2631 args->flags |= NFSMNT_INT; 2632 break; 2633 case OPT_NOINTR: 2634 args->flags &= ~(NFSMNT_INT); 2635 break; 2636 case OPT_NOAC: 2637 args->flags |= NFSMNT_NOAC; 2638 break; 2639 case OPT_PORT: 2640 cmn_err(CE_WARN, 2641 "nfs_dlboot: may not change root port number"); 2642 break; 2643 case OPT_SECURE: 2644 cmn_err(CE_WARN, 2645 "nfs_dlboot: root mounted auth_unix, secure ignored"); 2646 break; 2647 case OPT_NOCTO: 2648 args->flags |= NFSMNT_NOCTO; 2649 break; 2650 case OPT_RSIZE: 2651 if (bad(val)) { 2652 cmn_err(CE_WARN, 2653 "nfs_dlboot: invalid option: rsize"); 2654 break; 2655 } 2656 args->flags |= NFSMNT_RSIZE; 2657 args->rsize = atoi(val); 2658 break; 2659 case OPT_WSIZE: 2660 if (bad(val)) { 2661 cmn_err(CE_WARN, 2662 "nfs_dlboot: invalid option: wsize"); 2663 break; 2664 } 2665 args->flags |= NFSMNT_WSIZE; 2666 args->wsize = atoi(val); 2667 break; 2668 case OPT_TIMEO: 2669 if (bad(val)) { 2670 cmn_err(CE_WARN, 2671 "nfs_dlboot: invalid option: timeo"); 2672 break; 2673 } 2674 args->flags |= NFSMNT_TIMEO; 2675 args->timeo = atoi(val); 2676 break; 2677 case OPT_RETRANS: 2678 if (bad(val)) { 2679 cmn_err(CE_WARN, 2680 "nfs_dlboot: invalid option: retrans"); 2681 break; 2682 } 2683 args->flags |= NFSMNT_RETRANS; 2684 args->retrans = atoi(val); 2685 break; 2686 case OPT_ACTIMEO: 2687 if (bad(val)) { 2688 cmn_err(CE_WARN, 2689 "nfs_dlboot: invalid option: actimeo"); 2690 break; 2691 } 2692 args->flags |= NFSMNT_ACDIRMAX; 2693 args->flags |= NFSMNT_ACREGMAX; 2694 args->flags |= NFSMNT_ACDIRMIN; 2695 args->flags |= NFSMNT_ACREGMIN; 2696 args->acdirmin = args->acregmin = args->acdirmax = 2697 args->acregmax = atoi(val); 2698 break; 2699 case OPT_ACREGMIN: 2700 if (bad(val)) { 2701 cmn_err(CE_WARN, 2702 "nfs_dlboot: invalid option: acregmin"); 2703 break; 2704 } 2705 args->flags |= NFSMNT_ACREGMIN; 2706 args->acregmin = atoi(val); 2707 break; 2708 case OPT_ACREGMAX: 2709 if (bad(val)) { 2710 cmn_err(CE_WARN, 2711 "nfs_dlboot: invalid option: acregmax"); 2712 break; 2713 } 2714 args->flags |= NFSMNT_ACREGMAX; 2715 args->acregmax = atoi(val); 2716 break; 2717 case OPT_ACDIRMIN: 2718 if (bad(val)) { 2719 cmn_err(CE_WARN, 2720 "nfs_dlboot: invalid option: acdirmin"); 2721 break; 2722 } 2723 args->flags |= NFSMNT_ACDIRMIN; 2724 args->acdirmin = atoi(val); 2725 break; 2726 case OPT_ACDIRMAX: 2727 if (bad(val)) { 2728 cmn_err(CE_WARN, 2729 "nfs_dlboot: invalid option: acdirmax"); 2730 break; 2731 } 2732 args->flags |= NFSMNT_ACDIRMAX; 2733 args->acdirmax = atoi(val); 2734 break; 2735 case OPT_LLOCK: 2736 args->flags |= NFSMNT_LLOCK; 2737 break; 2738 case OPT_VERS: 2739 if (bad(val)) { 2740 cmn_err(CE_WARN, 2741 "nfs_dlboot: invalid option: vers"); 2742 break; 2743 } 2744 vers = atoi(val); 2745 /* 2746 * If the requested version is less than what we 2747 * chose, pretend the chosen version doesn't exist 2748 */ 2749 if (vers < version) { 2750 return (EPROTONOSUPPORT); 2751 } 2752 if (vers > version) { 2753 cmn_err(CE_WARN, 2754 "nfs_dlboot: version %d unavailable", 2755 vers); 2756 return (EINVAL); 2757 } 2758 break; 2759 case OPT_PROTO: 2760 /* 2761 * NFSv4 can only run over TCP, if they requested 2762 * UDP pretend v4 doesn't exist, they might not have 2763 * specified a version allowing a fallback to v2 or v3. 2764 */ 2765 if (version == NFS_V4 && strcmp(val, NC_UDP) == 0) 2766 return (EPROTONOSUPPORT); 2767 /* 2768 * TCP is always chosen over UDP, so if the 2769 * requested is the same as the chosen either 2770 * they chose TCP when available or UDP on a UDP 2771 * only server. 2772 */ 2773 if (strcmp(cf->knc_proto, val) == 0) 2774 break; 2775 /* 2776 * If we chose UDP, they must have requested TCP 2777 */ 2778 if (strcmp(cf->knc_proto, NC_TCP) != 0) { 2779 cmn_err(CE_WARN, 2780 "nfs_dlboot: TCP protocol unavailable"); 2781 return (EINVAL); 2782 } 2783 /* 2784 * They can only have requested UDP 2785 */ 2786 if (strcmp(val, NC_UDP) != 0) { 2787 cmn_err(CE_WARN, 2788 "nfs_dlboot: unknown protocol"); 2789 return (EINVAL); 2790 } 2791 *dl_cf = &dl_udp_netconf; 2792 break; 2793 case OPT_NOPRINT: 2794 args->flags |= NFSMNT_NOPRINT; 2795 break; 2796 case OPT_NOLARGEFILES: 2797 cmn_err(CE_WARN, 2798 "nfs_dlboot: NFS can't support nolargefiles"); 2799 break; 2800 case OPT_SEC: 2801 cmn_err(CE_WARN, 2802 "nfs_dlboot: root mounted auth_unix, sec ignored"); 2803 break; 2804 2805 case OPT_DIRECTIO: 2806 args->flags |= NFSMNT_DIRECTIO; 2807 break; 2808 2809 case OPT_NODIRECTIO: 2810 args->flags &= ~(NFSMNT_DIRECTIO); 2811 break; 2812 2813 default: 2814 cmn_err(CE_WARN, 2815 "nfs_dlboot: ignoring invalid option \"%s\"", val); 2816 break; 2817 } 2818 } 2819 sanity: 2820 /* 2821 * Set some sane limits on read size 2822 */ 2823 if (!(args->flags & NFSMNT_RSIZE) || args->rsize == 0) { 2824 /* 2825 * Establish defaults 2826 */ 2827 args->flags |= NFSMNT_RSIZE; 2828 if (version == NFS_V4) 2829 args->rsize = nfs4_root_rsize; 2830 else 2831 args->rsize = nfs_root_rsize; 2832 return (0); 2833 } 2834 /* 2835 * No less than 512 bytes, otherwise it will take forever to boot 2836 */ 2837 if (args->rsize < 512) 2838 args->rsize = 512; 2839 /* 2840 * If we are running over UDP, we cannot exceed 64KB, trim 2841 * to 56KB to allow room for headers. 2842 */ 2843 if (*dl_cf == &dl_udp_netconf && args->rsize > (56 * 1024)) 2844 args->rsize = 56 * 1024; 2845 return (0); 2846 } 2847