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