| 1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This code is derived from software contributed to Berkeley by |
| 6 | * William Jolitz. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. All advertising materials mentioning features or use of this software |
| 17 | * must display the following acknowledgement: |
| 18 | * This product includes software developed by the University of |
| 19 | * California, Berkeley and its contributors. |
| 20 | * 4. Neither the name of the University nor the names of its contributors |
| 21 | * may be used to endorse or promote products derived from this software |
| 22 | * without specific prior written permission. |
| 23 | * |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 34 | * SUCH DAMAGE. |
| 35 | * |
| 36 | * from: @(#)autoconf.c 7.1 (Berkeley) 5/9/91 |
| 37 | * $FreeBSD: src/sys/i386/i386/autoconf.c,v 1.146.2.2 2001/06/07 06:05:58 dd Exp $ |
| 38 | * $DragonFly: src/sys/platform/pc32/i386/autoconf.c,v 1.17 2005/06/16 21:12:44 dillon Exp $ |
| 39 | */ |
| 40 | |
| 41 | /* |
| 42 | * Setup the system to run on the current machine. |
| 43 | * |
| 44 | * Configure() is called at boot time and initializes the vba |
| 45 | * device tables and the memory controller monitoring. Available |
| 46 | * devices are determined (from possibilities mentioned in ioconf.c), |
| 47 | * and the drivers are initialized. |
| 48 | */ |
| 49 | #include "opt_bootp.h" |
| 50 | #include "opt_ffs.h" |
| 51 | #include "opt_cd9660.h" |
| 52 | #include "opt_nfs.h" |
| 53 | #include "opt_nfsroot.h" |
| 54 | #include "opt_bus.h" |
| 55 | #include "opt_rootdevname.h" |
| 56 | |
| 57 | #include "use_isa.h" |
| 58 | |
| 59 | #include <sys/param.h> |
| 60 | #include <sys/systm.h> |
| 61 | #include <sys/bootmaj.h> |
| 62 | #include <sys/bus.h> |
| 63 | #include <sys/conf.h> |
| 64 | #include <sys/disklabel.h> |
| 65 | #include <sys/diskslice.h> |
| 66 | #include <sys/reboot.h> |
| 67 | #include <sys/kernel.h> |
| 68 | #include <sys/malloc.h> |
| 69 | #include <sys/mount.h> |
| 70 | #include <sys/cons.h> |
| 71 | #include <sys/thread.h> |
| 72 | #include <sys/device.h> |
| 73 | |
| 74 | #include <machine/bootinfo.h> |
| 75 | #include <machine/ipl.h> |
| 76 | #include <machine/md_var.h> |
| 77 | #ifdef APIC_IO |
| 78 | #include <machine/smp.h> |
| 79 | #else |
| 80 | #include <i386/isa/icu.h> |
| 81 | #endif /* APIC_IO */ |
| 82 | |
| 83 | #include <machine/pcb.h> |
| 84 | #include <machine/pcb_ext.h> |
| 85 | #include <machine/vm86.h> |
| 86 | #include <machine/globaldata.h> |
| 87 | |
| 88 | #if NISA > 0 |
| 89 | #include <bus/isa/isavar.h> |
| 90 | |
| 91 | device_t isa_bus_device = 0; |
| 92 | #endif |
| 93 | |
| 94 | static void configure_first (void *); |
| 95 | static void configure (void *); |
| 96 | static void configure_final (void *); |
| 97 | |
| 98 | #if defined(FFS) && defined(FFS_ROOT) |
| 99 | static void setroot (void); |
| 100 | #endif |
| 101 | |
| 102 | #if defined(NFS) && defined(NFS_ROOT) |
| 103 | #if !defined(BOOTP_NFSROOT) |
| 104 | static void pxe_setup_nfsdiskless(void); |
| 105 | #endif |
| 106 | #endif |
| 107 | |
| 108 | SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); |
| 109 | /* SI_ORDER_SECOND is hookable */ |
| 110 | SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); |
| 111 | /* SI_ORDER_MIDDLE is hookable */ |
| 112 | SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); |
| 113 | |
| 114 | dev_t rootdev = NODEV; |
| 115 | dev_t dumpdev = NODEV; |
| 116 | |
| 117 | device_t nexus_dev; |
| 118 | |
| 119 | /* |
| 120 | * Determine i/o configuration for a machine. |
| 121 | */ |
| 122 | static void |
| 123 | configure_first(dummy) |
| 124 | void *dummy; |
| 125 | { |
| 126 | } |
| 127 | |
| 128 | static void |
| 129 | configure(dummy) |
| 130 | void *dummy; |
| 131 | { |
| 132 | |
| 133 | /* |
| 134 | * Activate the ICU's. Note that we are explicitly at splhigh() |
| 135 | * at present as we have no way to disable stray PCI level triggered |
| 136 | * interrupts until the devices have had a driver attached. This |
| 137 | * is particularly a problem when the interrupts are shared. For |
| 138 | * example, if IRQ 10 is shared between a disk and network device |
| 139 | * and the disk device generates an interrupt, if we "activate" |
| 140 | * IRQ 10 when the network driver is set up, then we will get |
| 141 | * recursive interrupt 10's as nothing will know how to turn off |
| 142 | * the disk device's interrupt. |
| 143 | * |
| 144 | * Having the ICU's active means we can probe interrupt routing to |
| 145 | * see if a device causes the corresponding pending bit to be set. |
| 146 | * |
| 147 | * This is all rather inconvenient. |
| 148 | */ |
| 149 | #ifdef APIC_IO |
| 150 | bsp_apic_configure(); |
| 151 | cpu_enable_intr(); |
| 152 | #else |
| 153 | cpu_enable_intr(); |
| 154 | INTREN(IRQ_SLAVE); |
| 155 | #endif /* APIC_IO */ |
| 156 | |
| 157 | /* nexus0 is the top of the i386 device tree */ |
| 158 | device_add_child(root_bus, "nexus", 0); |
| 159 | |
| 160 | /* initialize new bus architecture */ |
| 161 | root_bus_configure(); |
| 162 | |
| 163 | #if NISA > 0 |
| 164 | /* |
| 165 | * Explicitly probe and attach ISA last. The isa bus saves |
| 166 | * it's device node at attach time for us here. |
| 167 | */ |
| 168 | if (isa_bus_device) |
| 169 | isa_probe_children(isa_bus_device); |
| 170 | #endif |
| 171 | |
| 172 | /* |
| 173 | * Allow lowering of the ipl to the lowest kernel level if we |
| 174 | * panic (or call tsleep() before clearing `cold'). No level is |
| 175 | * completely safe (since a panic may occur in a critical region |
| 176 | * at splhigh()), but we want at least bio interrupts to work. |
| 177 | */ |
| 178 | safepri = TDPRI_KERN_USER; |
| 179 | } |
| 180 | |
| 181 | static void |
| 182 | configure_final(dummy) |
| 183 | void *dummy; |
| 184 | { |
| 185 | int i; |
| 186 | |
| 187 | cninit_finish(); |
| 188 | |
| 189 | if (bootverbose) { |
| 190 | |
| 191 | #ifdef APIC_IO |
| 192 | imen_dump(); |
| 193 | #endif /* APIC_IO */ |
| 194 | |
| 195 | /* |
| 196 | * Print out the BIOS's idea of the disk geometries. |
| 197 | */ |
| 198 | printf("BIOS Geometries:\n"); |
| 199 | for (i = 0; i < N_BIOS_GEOM; i++) { |
| 200 | unsigned long bios_geom; |
| 201 | int max_cylinder, max_head, max_sector; |
| 202 | |
| 203 | bios_geom = bootinfo.bi_bios_geom[i]; |
| 204 | |
| 205 | /* |
| 206 | * XXX the bootstrap punts a 1200K floppy geometry |
| 207 | * when the get-disk-geometry interrupt fails. Skip |
| 208 | * drives that have this geometry. |
| 209 | */ |
| 210 | if (bios_geom == 0x4f010f) |
| 211 | continue; |
| 212 | |
| 213 | printf(" %x:%08lx ", i, bios_geom); |
| 214 | max_cylinder = bios_geom >> 16; |
| 215 | max_head = (bios_geom >> 8) & 0xff; |
| 216 | max_sector = bios_geom & 0xff; |
| 217 | printf( |
| 218 | "0..%d=%d cylinders, 0..%d=%d heads, 1..%d=%d sectors\n", |
| 219 | max_cylinder, max_cylinder + 1, |
| 220 | max_head, max_head + 1, |
| 221 | max_sector, max_sector); |
| 222 | } |
| 223 | printf(" %d accounted for\n", bootinfo.bi_n_bios_used); |
| 224 | |
| 225 | printf("Device configuration finished.\n"); |
| 226 | } |
| 227 | cold = 0; |
| 228 | } |
| 229 | |
| 230 | #ifdef BOOTP |
| 231 | void bootpc_init(void); |
| 232 | #endif |
| 233 | /* |
| 234 | * Do legacy root filesystem discovery. |
| 235 | */ |
| 236 | void |
| 237 | cpu_rootconf() |
| 238 | { |
| 239 | #ifdef BOOTP |
| 240 | bootpc_init(); |
| 241 | #endif |
| 242 | #if defined(NFS) && defined(NFS_ROOT) |
| 243 | #if !defined(BOOTP_NFSROOT) |
| 244 | pxe_setup_nfsdiskless(); |
| 245 | if (nfs_diskless_valid) |
| 246 | #endif |
| 247 | rootdevnames[0] = "nfs:"; |
| 248 | #endif |
| 249 | #if defined(FFS) && defined(FFS_ROOT) |
| 250 | if (!rootdevnames[0]) |
| 251 | setroot(); |
| 252 | #endif |
| 253 | } |
| 254 | SYSINIT(cpu_rootconf, SI_SUB_ROOT_CONF, SI_ORDER_FIRST, cpu_rootconf, NULL) |
| 255 | |
| 256 | u_long bootdev = 0; /* not a dev_t - encoding is different */ |
| 257 | |
| 258 | #if defined(FFS) && defined(FFS_ROOT) |
| 259 | #define FDMAJOR 2 |
| 260 | #define FDUNITSHIFT 6 |
| 261 | |
| 262 | /* |
| 263 | * The boot code uses old block device major numbers to pass bootdev to |
| 264 | * us. We have to translate these to character device majors because |
| 265 | * we don't have block devices any more. |
| 266 | */ |
| 267 | static int |
| 268 | boot_translate_majdev(int bmajor) |
| 269 | { |
| 270 | static int conv[] = { BOOTMAJOR_CONVARY }; |
| 271 | |
| 272 | if (bmajor >= 0 && bmajor < sizeof(conv)/sizeof(conv[0])) |
| 273 | return(conv[bmajor]); |
| 274 | return(-1); |
| 275 | } |
| 276 | |
| 277 | /* |
| 278 | * Attempt to find the device from which we were booted. |
| 279 | * If we can do so, and not instructed not to do so, |
| 280 | * set rootdevs[] and rootdevnames[] to correspond to the |
| 281 | * boot device(s). |
| 282 | * |
| 283 | * This code survives in order to allow the system to be |
| 284 | * booted from legacy environments that do not correctly |
| 285 | * populate the kernel environment. There are significant |
| 286 | * restrictions on the bootability of the system in this |
| 287 | * situation; it can only be mounting root from a 'da' |
| 288 | * 'wd' or 'fd' device, and the root filesystem must be ufs. |
| 289 | */ |
| 290 | static void |
| 291 | setroot() |
| 292 | { |
| 293 | int majdev, mindev, unit, slice, part; |
| 294 | dev_t newrootdev, dev; |
| 295 | char partname[2]; |
| 296 | char *sname; |
| 297 | |
| 298 | if ((bootdev & B_MAGICMASK) != B_DEVMAGIC) { |
| 299 | printf("no B_DEVMAGIC (bootdev=%#lx)\n", bootdev); |
| 300 | return; |
| 301 | } |
| 302 | majdev = boot_translate_majdev(B_TYPE(bootdev)); |
| 303 | if (bootverbose) { |
| 304 | printf("bootdev: %08lx type=%ld unit=%ld " |
| 305 | "slice=%ld part=%ld major=%d\n", |
| 306 | bootdev, B_TYPE(bootdev), B_UNIT(bootdev), |
| 307 | B_SLICE(bootdev), B_PARTITION(bootdev), majdev); |
| 308 | } |
| 309 | dev = udev2dev(makeudev(majdev, 0), 0); |
| 310 | if (!dev_is_good(dev)) |
| 311 | return; |
| 312 | unit = B_UNIT(bootdev); |
| 313 | slice = B_SLICE(bootdev); |
| 314 | if (slice == WHOLE_DISK_SLICE) |
| 315 | slice = COMPATIBILITY_SLICE; |
| 316 | if (slice < 0 || slice >= MAX_SLICES) { |
| 317 | printf("bad slice\n"); |
| 318 | return; |
| 319 | } |
| 320 | |
| 321 | /* |
| 322 | * XXX kludge for inconsistent unit numbering and lack of slice |
| 323 | * support for floppies. |
| 324 | */ |
| 325 | if (majdev == FD_CDEV_MAJOR) { |
| 326 | slice = COMPATIBILITY_SLICE; |
| 327 | part = RAW_PART; |
| 328 | mindev = unit << FDUNITSHIFT; |
| 329 | } else { |
| 330 | part = B_PARTITION(bootdev); |
| 331 | mindev = dkmakeminor(unit, slice, part); |
| 332 | } |
| 333 | newrootdev = udev2dev(makeudev(majdev, mindev), 0); |
| 334 | if (!dev_is_good(newrootdev)) |
| 335 | return; |
| 336 | sname = dsname(newrootdev, unit, slice, part, partname); |
| 337 | rootdevnames[0] = malloc(strlen(sname) + 6, M_DEVBUF, M_WAITOK); |
| 338 | sprintf(rootdevnames[0], "ufs:%s%s", sname, partname); |
| 339 | |
| 340 | /* |
| 341 | * For properly dangerously dedicated disks (ones with a historical |
| 342 | * bogus partition table), the boot blocks will give slice = 4, but |
| 343 | * the kernel will only provide the compatibility slice since it |
| 344 | * knows that slice 4 is not a real slice. Arrange to try mounting |
| 345 | * the compatibility slice as root if mounting the slice passed by |
| 346 | * the boot blocks fails. This handles the dangerously dedicated |
| 347 | * case and perhaps others. |
| 348 | */ |
| 349 | if (slice == COMPATIBILITY_SLICE) |
| 350 | return; |
| 351 | slice = COMPATIBILITY_SLICE; |
| 352 | sname = dsname(newrootdev, unit, slice, part, partname); |
| 353 | rootdevnames[1] = malloc(strlen(sname) + 6, M_DEVBUF, M_WAITOK); |
| 354 | sprintf(rootdevnames[1], "ufs:%s%s", sname, partname); |
| 355 | } |
| 356 | #endif |
| 357 | |
| 358 | #if defined(NFS) && defined(NFS_ROOT) |
| 359 | #if !defined(BOOTP_NFSROOT) |
| 360 | |
| 361 | #include <sys/socket.h> |
| 362 | #include <net/if.h> |
| 363 | #include <net/if_dl.h> |
| 364 | #include <net/if_types.h> |
| 365 | #include <net/if_var.h> |
| 366 | #include <net/ethernet.h> |
| 367 | #include <netinet/in.h> |
| 368 | #include <vfs/nfs/rpcv2.h> |
| 369 | #include <vfs/nfs/nfsproto.h> |
| 370 | #include <vfs/nfs/nfs.h> |
| 371 | #include <vfs/nfs/nfsdiskless.h> |
| 372 | |
| 373 | extern struct nfs_diskless nfs_diskless; |
| 374 | |
| 375 | /* |
| 376 | * Convert a kenv variable to a sockaddr. If the kenv variable does not |
| 377 | * exist the sockaddr will remain zerod out (callers typically just check |
| 378 | * sin_len). A network address of 0.0.0.0 is equivalent to failure. |
| 379 | */ |
| 380 | static int |
| 381 | inaddr_to_sockaddr(char *ev, struct sockaddr_in *sa) |
| 382 | { |
| 383 | u_int32_t a[4]; |
| 384 | char *cp; |
| 385 | |
| 386 | bzero(sa, sizeof(*sa)); |
| 387 | |
| 388 | if ((cp = getenv(ev)) == NULL) |
| 389 | return(1); |
| 390 | if (sscanf(cp, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]) != 4) |
| 391 | return(1); |
| 392 | if (a[0] == 0 && a[1] == 0 && a[2] == 0 && a[3] == 0) |
| 393 | return(1); |
| 394 | /* XXX is this ordering correct? */ |
| 395 | sa->sin_addr.s_addr = (a[3] << 24) + (a[2] << 16) + (a[1] << 8) + a[0]; |
| 396 | sa->sin_len = sizeof(*sa); |
| 397 | sa->sin_family = AF_INET; |
| 398 | return(0); |
| 399 | } |
| 400 | |
| 401 | static int |
| 402 | hwaddr_to_sockaddr(char *ev, struct sockaddr_dl *sa) |
| 403 | { |
| 404 | char *cp; |
| 405 | u_int32_t a[6]; |
| 406 | |
| 407 | bzero(sa, sizeof(*sa)); |
| 408 | sa->sdl_len = sizeof(*sa); |
| 409 | sa->sdl_family = AF_LINK; |
| 410 | sa->sdl_type = IFT_ETHER; |
| 411 | sa->sdl_alen = ETHER_ADDR_LEN; |
| 412 | if ((cp = getenv(ev)) == NULL) |
| 413 | return(1); |
| 414 | if (sscanf(cp, "%x:%x:%x:%x:%x:%x", &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]) != 6) |
| 415 | return(1); |
| 416 | sa->sdl_data[0] = a[0]; |
| 417 | sa->sdl_data[1] = a[1]; |
| 418 | sa->sdl_data[2] = a[2]; |
| 419 | sa->sdl_data[3] = a[3]; |
| 420 | sa->sdl_data[4] = a[4]; |
| 421 | sa->sdl_data[5] = a[5]; |
| 422 | return(0); |
| 423 | } |
| 424 | |
| 425 | static int |
| 426 | decode_nfshandle(char *ev, u_char *fh) |
| 427 | { |
| 428 | u_char *cp; |
| 429 | int len, val; |
| 430 | |
| 431 | if (((cp = getenv(ev)) == NULL) || (strlen(cp) < 2) || (*cp != 'X')) |
| 432 | return(0); |
| 433 | len = 0; |
| 434 | cp++; |
| 435 | for (;;) { |
| 436 | if (*cp == 'X') |
| 437 | return(len); |
| 438 | if ((sscanf(cp, "%2x", &val) != 1) || (val > 0xff)) |
| 439 | return(0); |
| 440 | *(fh++) = val; |
| 441 | len++; |
| 442 | cp += 2; |
| 443 | if (len > NFSX_V2FH) |
| 444 | return(0); |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | /* |
| 449 | * Populate the essential fields in the nfsv3_diskless structure. |
| 450 | * |
| 451 | * The loader is expected to export the following environment variables: |
| 452 | * |
| 453 | * boot.netif.ip IP address on boot interface |
| 454 | * boot.netif.netmask netmask on boot interface |
| 455 | * boot.netif.gateway default gateway (optional) |
| 456 | * boot.netif.hwaddr hardware address of boot interface |
| 457 | * boot.nfsroot.server IP address of root filesystem server |
| 458 | * boot.nfsroot.path path of the root filesystem on server |
| 459 | * boot.nfsroot.nfshandle NFS handle for root filesystem on server |
| 460 | */ |
| 461 | static void |
| 462 | pxe_setup_nfsdiskless() |
| 463 | { |
| 464 | struct nfs_diskless *nd = &nfs_diskless; |
| 465 | struct ifnet *ifp; |
| 466 | struct ifaddr *ifa; |
| 467 | struct sockaddr_dl *sdl, ourdl; |
| 468 | struct sockaddr_in myaddr, netmask; |
| 469 | char *cp; |
| 470 | |
| 471 | /* set up interface */ |
| 472 | if (inaddr_to_sockaddr("boot.netif.ip", &myaddr)) |
| 473 | return; |
| 474 | if (inaddr_to_sockaddr("boot.netif.netmask", &netmask)) { |
| 475 | printf("PXE: no netmask\n"); |
| 476 | return; |
| 477 | } |
| 478 | bcopy(&myaddr, &nd->myif.ifra_addr, sizeof(myaddr)); |
| 479 | bcopy(&myaddr, &nd->myif.ifra_broadaddr, sizeof(myaddr)); |
| 480 | ((struct sockaddr_in *) &nd->myif.ifra_broadaddr)->sin_addr.s_addr = |
| 481 | myaddr.sin_addr.s_addr | ~ netmask.sin_addr.s_addr; |
| 482 | bcopy(&netmask, &nd->myif.ifra_mask, sizeof(netmask)); |
| 483 | |
| 484 | if (hwaddr_to_sockaddr("boot.netif.hwaddr", &ourdl)) { |
| 485 | printf("PXE: no hardware address\n"); |
| 486 | return; |
| 487 | } |
| 488 | ifa = NULL; |
| 489 | ifp = TAILQ_FIRST(&ifnet); |
| 490 | TAILQ_FOREACH(ifp, &ifnet, if_link) { |
| 491 | TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { |
| 492 | if ((ifa->ifa_addr->sa_family == AF_LINK) && |
| 493 | (sdl = ((struct sockaddr_dl *)ifa->ifa_addr))) { |
| 494 | if ((sdl->sdl_type == ourdl.sdl_type) && |
| 495 | (sdl->sdl_alen == ourdl.sdl_alen) && |
| 496 | !bcmp(sdl->sdl_data + sdl->sdl_nlen, |
| 497 | ourdl.sdl_data + ourdl.sdl_nlen, |
| 498 | sdl->sdl_alen)) |
| 499 | goto match_done; |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | printf("PXE: no interface\n"); |
| 504 | return; /* no matching interface */ |
| 505 | match_done: |
| 506 | strlcpy(nd->myif.ifra_name, ifp->if_xname, sizeof(nd->myif.ifra_name)); |
| 507 | |
| 508 | /* set up gateway */ |
| 509 | inaddr_to_sockaddr("boot.netif.gateway", &nd->mygateway); |
| 510 | |
| 511 | /* XXX set up swap? */ |
| 512 | |
| 513 | /* set up root mount */ |
| 514 | nd->root_args.rsize = 8192; /* XXX tunable? */ |
| 515 | nd->root_args.wsize = 8192; |
| 516 | nd->root_args.sotype = SOCK_DGRAM; |
| 517 | nd->root_args.flags = (NFSMNT_WSIZE | NFSMNT_RSIZE | NFSMNT_RESVPORT); |
| 518 | if (inaddr_to_sockaddr("boot.nfsroot.server", &nd->root_saddr)) { |
| 519 | printf("PXE: no server\n"); |
| 520 | return; |
| 521 | } |
| 522 | nd->root_saddr.sin_port = htons(NFS_PORT); |
| 523 | if (decode_nfshandle("boot.nfsroot.nfshandle", &nd->root_fh[0]) == 0) { |
| 524 | printf("PXE: no NFS handle\n"); |
| 525 | return; |
| 526 | } |
| 527 | if ((cp = getenv("boot.nfsroot.path")) != NULL) |
| 528 | strncpy(nd->root_hostnam, cp, MNAMELEN - 1); |
| 529 | |
| 530 | nfs_diskless_valid = 1; |
| 531 | } |
| 532 | |
| 533 | #endif |
| 534 | #endif |