17c208ed6SRick Macklem /*- 251369649SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 351369649SPedro F. Giffuni * 47c208ed6SRick Macklem * Copyright (c) 1990 The Regents of the University of California. 57c208ed6SRick Macklem * All rights reserved. 67c208ed6SRick Macklem * 77c208ed6SRick Macklem * This code is derived from software contributed to Berkeley by 87c208ed6SRick Macklem * William Jolitz. 97c208ed6SRick Macklem * 107c208ed6SRick Macklem * Redistribution and use in source and binary forms, with or without 117c208ed6SRick Macklem * modification, are permitted provided that the following conditions 127c208ed6SRick Macklem * are met: 137c208ed6SRick Macklem * 1. Redistributions of source code must retain the above copyright 147c208ed6SRick Macklem * notice, this list of conditions and the following disclaimer. 157c208ed6SRick Macklem * 2. Redistributions in binary form must reproduce the above copyright 167c208ed6SRick Macklem * notice, this list of conditions and the following disclaimer in the 177c208ed6SRick Macklem * documentation and/or other materials provided with the distribution. 18fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 197c208ed6SRick Macklem * may be used to endorse or promote products derived from this software 207c208ed6SRick Macklem * without specific prior written permission. 217c208ed6SRick Macklem * 227c208ed6SRick Macklem * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 237c208ed6SRick Macklem * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 247c208ed6SRick Macklem * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 257c208ed6SRick Macklem * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 267c208ed6SRick Macklem * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 277c208ed6SRick Macklem * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 287c208ed6SRick Macklem * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 297c208ed6SRick Macklem * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 307c208ed6SRick Macklem * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 317c208ed6SRick Macklem * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 327c208ed6SRick Macklem * SUCH DAMAGE. 337c208ed6SRick Macklem * 347c208ed6SRick Macklem * from: @(#)autoconf.c 7.1 (Berkeley) 5/9/91 357c208ed6SRick Macklem */ 367c208ed6SRick Macklem 377c208ed6SRick Macklem #include <sys/cdefs.h> 387c208ed6SRick Macklem __FBSDID("$FreeBSD$"); 397c208ed6SRick Macklem 407c208ed6SRick Macklem #include "opt_bootp.h" 417c208ed6SRick Macklem 427c208ed6SRick Macklem #include <sys/param.h> 437c208ed6SRick Macklem #include <sys/systm.h> 447c208ed6SRick Macklem #include <sys/jail.h> 457c208ed6SRick Macklem #include <sys/kernel.h> 467c208ed6SRick Macklem #include <sys/malloc.h> 477c208ed6SRick Macklem #include <sys/mount.h> 487c208ed6SRick Macklem #include <sys/socket.h> 497c208ed6SRick Macklem 507c208ed6SRick Macklem #include <net/if.h> 517c208ed6SRick Macklem #include <net/if_dl.h> 527c208ed6SRick Macklem #include <net/if_types.h> 537c208ed6SRick Macklem #include <net/if_var.h> 547c208ed6SRick Macklem #include <net/ethernet.h> 557c208ed6SRick Macklem #include <net/vnet.h> 567c208ed6SRick Macklem 577c208ed6SRick Macklem #include <netinet/in.h> 587c208ed6SRick Macklem #include <nfs/nfsproto.h> 597c208ed6SRick Macklem #include <nfsclient/nfs.h> 607c208ed6SRick Macklem #include <nfs/nfsdiskless.h> 617c208ed6SRick Macklem 62e488229bSIan Lepore #define NFS_IFACE_TIMEOUT_SECS 10 /* Timeout for interface to appear. */ 63e488229bSIan Lepore 647c208ed6SRick Macklem static int inaddr_to_sockaddr(char *ev, struct sockaddr_in *sa); 657c208ed6SRick Macklem static int hwaddr_to_sockaddr(char *ev, struct sockaddr_dl *sa); 667c208ed6SRick Macklem static int decode_nfshandle(char *ev, u_char *fh, int maxfh); 677c208ed6SRick Macklem 687c208ed6SRick Macklem /* 697c208ed6SRick Macklem * This structure must be filled in by a primary bootstrap or bootstrap 707c208ed6SRick Macklem * server for a diskless/dataless machine. It is initialized below just 717c208ed6SRick Macklem * to ensure that it is allocated to initialized data (.data not .bss). 727c208ed6SRick Macklem */ 737c208ed6SRick Macklem struct nfs_diskless nfs_diskless = { { { 0 } } }; 747c208ed6SRick Macklem struct nfsv3_diskless nfsv3_diskless = { { { 0 } } }; 757c208ed6SRick Macklem int nfs_diskless_valid = 0; 767c208ed6SRick Macklem 777c208ed6SRick Macklem /* 787c208ed6SRick Macklem * Validate/sanity check a rsize/wsize parameter. 797c208ed6SRick Macklem */ 807c208ed6SRick Macklem static int 817c208ed6SRick Macklem checkrwsize(unsigned long v, const char *name) 827c208ed6SRick Macklem { 837c208ed6SRick Macklem /* 847c208ed6SRick Macklem * 32K is used as an upper bound because most servers 857c208ed6SRick Macklem * limit block size to satisfy IPv4's limit of 867c208ed6SRick Macklem * 64K/reassembled packet. The lower bound is pretty 877c208ed6SRick Macklem * much arbitrary. 887c208ed6SRick Macklem */ 897c208ed6SRick Macklem if (!(4 <= v && v <= 32*1024)) { 907c208ed6SRick Macklem printf("nfs_parse_options: invalid %s %lu ignored\n", name, v); 917c208ed6SRick Macklem return 0; 927c208ed6SRick Macklem } else 937c208ed6SRick Macklem return 1; 947c208ed6SRick Macklem } 957c208ed6SRick Macklem 967c208ed6SRick Macklem /* 977c208ed6SRick Macklem * Parse mount options and apply them to the supplied 987c208ed6SRick Macklem * nfs_diskless state. Used also by bootp/dhcp support. 997c208ed6SRick Macklem */ 1007c208ed6SRick Macklem void 1017c208ed6SRick Macklem nfs_parse_options(const char *envopts, struct nfs_args *nd) 1027c208ed6SRick Macklem { 1037c208ed6SRick Macklem char *opts, *o, *otmp; 1047c208ed6SRick Macklem unsigned long v; 1057c208ed6SRick Macklem 1067c208ed6SRick Macklem opts = strdup(envopts, M_TEMP); 1077c208ed6SRick Macklem otmp = opts; 1087c208ed6SRick Macklem while ((o = strsep(&otmp, ":;, ")) != NULL) { 1097c208ed6SRick Macklem if (*o == '\0') 1107c208ed6SRick Macklem ; /* Skip empty options. */ 1117c208ed6SRick Macklem else if (strcmp(o, "soft") == 0) 1127c208ed6SRick Macklem nd->flags |= NFSMNT_SOFT; 1137c208ed6SRick Macklem else if (strcmp(o, "intr") == 0) 1147c208ed6SRick Macklem nd->flags |= NFSMNT_INT; 1157c208ed6SRick Macklem else if (strcmp(o, "conn") == 0) 1167c208ed6SRick Macklem nd->flags |= NFSMNT_NOCONN; 1177c208ed6SRick Macklem else if (strcmp(o, "nolockd") == 0) 1187c208ed6SRick Macklem nd->flags |= NFSMNT_NOLOCKD; 119e2f2b370SRuslan Ermilov else if (strcmp(o, "nocto") == 0) 120e2f2b370SRuslan Ermilov nd->flags |= NFSMNT_NOCTO; 1217c208ed6SRick Macklem else if (strcmp(o, "nfsv2") == 0) 1227c208ed6SRick Macklem nd->flags &= ~(NFSMNT_NFSV3 | NFSMNT_NFSV4); 1237c208ed6SRick Macklem else if (strcmp(o, "nfsv3") == 0) { 1247c208ed6SRick Macklem nd->flags &= ~NFSMNT_NFSV4; 1257c208ed6SRick Macklem nd->flags |= NFSMNT_NFSV3; 1267c208ed6SRick Macklem } else if (strcmp(o, "tcp") == 0) 1277c208ed6SRick Macklem nd->sotype = SOCK_STREAM; 1287c208ed6SRick Macklem else if (strcmp(o, "udp") == 0) 1297c208ed6SRick Macklem nd->sotype = SOCK_DGRAM; 1307c208ed6SRick Macklem else if (strncmp(o, "rsize=", 6) == 0) { 1317c208ed6SRick Macklem v = strtoul(o+6, NULL, 10); 1327c208ed6SRick Macklem if (checkrwsize(v, "rsize")) { 1337c208ed6SRick Macklem nd->rsize = (int) v; 1347c208ed6SRick Macklem nd->flags |= NFSMNT_RSIZE; 1357c208ed6SRick Macklem } 1367c208ed6SRick Macklem } else if (strncmp(o, "wsize=", 6) == 0) { 1377c208ed6SRick Macklem v = strtoul(o+6, NULL, 10); 1387c208ed6SRick Macklem if (checkrwsize(v, "wsize")) { 1397c208ed6SRick Macklem nd->wsize = (int) v; 1407c208ed6SRick Macklem nd->flags |= NFSMNT_WSIZE; 1417c208ed6SRick Macklem } 1427c208ed6SRick Macklem } else 1437c208ed6SRick Macklem printf("%s: skipping unknown option \"%s\"\n", 1447c208ed6SRick Macklem __func__, o); 1457c208ed6SRick Macklem } 1467c208ed6SRick Macklem free(opts, M_TEMP); 1477c208ed6SRick Macklem } 1487c208ed6SRick Macklem 1490785c323SJustin Hibbits static u_int 1500785c323SJustin Hibbits nfs_setup_diskless_ifa_cb(void *arg, struct sockaddr_dl *sdl, u_int count) 1510785c323SJustin Hibbits { 1520785c323SJustin Hibbits struct sockaddr_dl *ourdl = arg; 1530785c323SJustin Hibbits 1540785c323SJustin Hibbits if ((sdl->sdl_type == ourdl->sdl_type) && 1550785c323SJustin Hibbits (sdl->sdl_alen == ourdl->sdl_alen) && 1560785c323SJustin Hibbits !bcmp(LLADDR(sdl), LLADDR(ourdl), sdl->sdl_alen)) 1570785c323SJustin Hibbits return (1); 1580785c323SJustin Hibbits 1590785c323SJustin Hibbits return (0); 1600785c323SJustin Hibbits } 1610785c323SJustin Hibbits 1627c208ed6SRick Macklem /* 1637c208ed6SRick Macklem * Populate the essential fields in the nfsv3_diskless structure. 1647c208ed6SRick Macklem * 1657c208ed6SRick Macklem * The loader is expected to export the following environment variables: 1667c208ed6SRick Macklem * 1677c208ed6SRick Macklem * boot.netif.name name of boot interface 1687c208ed6SRick Macklem * boot.netif.ip IP address on boot interface 1697c208ed6SRick Macklem * boot.netif.netmask netmask on boot interface 1707c208ed6SRick Macklem * boot.netif.gateway default gateway (optional) 1717c208ed6SRick Macklem * boot.netif.hwaddr hardware address of boot interface 172b50d46dfSIan Lepore * boot.netif.mtu interface mtu from bootp/dhcp (optional) 1737c208ed6SRick Macklem * boot.nfsroot.server IP address of root filesystem server 1747c208ed6SRick Macklem * boot.nfsroot.path path of the root filesystem on server 1757c208ed6SRick Macklem * boot.nfsroot.nfshandle NFS handle for root filesystem on server 1767c208ed6SRick Macklem * boot.nfsroot.nfshandlelen and length of this handle (for NFSv3 only) 1777c208ed6SRick Macklem * boot.nfsroot.options NFS options for the root filesystem 1787c208ed6SRick Macklem */ 1797c208ed6SRick Macklem void 1807c208ed6SRick Macklem nfs_setup_diskless(void) 1817c208ed6SRick Macklem { 1820785c323SJustin Hibbits struct epoch_tracker et; 1830785c323SJustin Hibbits struct if_iter iter; 1847c208ed6SRick Macklem struct nfs_diskless *nd = &nfs_diskless; 1857c208ed6SRick Macklem struct nfsv3_diskless *nd3 = &nfsv3_diskless; 1860785c323SJustin Hibbits if_t ifp; 1870785c323SJustin Hibbits struct sockaddr_dl ourdl; 1887c208ed6SRick Macklem struct sockaddr_in myaddr, netmask; 1897c208ed6SRick Macklem char *cp; 1907c208ed6SRick Macklem int cnt, fhlen, is_nfsv3; 1917c208ed6SRick Macklem uint32_t len; 192e488229bSIan Lepore time_t timeout_at; 1937c208ed6SRick Macklem 1947c208ed6SRick Macklem if (nfs_diskless_valid != 0) 1957c208ed6SRick Macklem return; 1967c208ed6SRick Macklem 1977c208ed6SRick Macklem /* get handle size. If this succeeds, it's an NFSv3 setup. */ 1982be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.nfshandlelen")) != NULL) { 1997c208ed6SRick Macklem cnt = sscanf(cp, "%d", &len); 2007c208ed6SRick Macklem freeenv(cp); 2017c208ed6SRick Macklem if (cnt != 1 || len == 0 || len > NFSX_V3FHMAX) { 2027c208ed6SRick Macklem printf("nfs_diskless: bad NFS handle len\n"); 2037c208ed6SRick Macklem return; 2047c208ed6SRick Macklem } 2057c208ed6SRick Macklem nd3->root_fhsize = len; 2067c208ed6SRick Macklem is_nfsv3 = 1; 2077c208ed6SRick Macklem } else 2087c208ed6SRick Macklem is_nfsv3 = 0; 2097c208ed6SRick Macklem /* set up interface */ 2107c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.netif.ip", &myaddr)) 2117c208ed6SRick Macklem return; 2127c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.netif.netmask", &netmask)) { 2137c208ed6SRick Macklem printf("nfs_diskless: no netmask\n"); 2147c208ed6SRick Macklem return; 2157c208ed6SRick Macklem } 2167c208ed6SRick Macklem if (is_nfsv3 != 0) { 2177c208ed6SRick Macklem bcopy(&myaddr, &nd3->myif.ifra_addr, sizeof(myaddr)); 2187c208ed6SRick Macklem bcopy(&myaddr, &nd3->myif.ifra_broadaddr, sizeof(myaddr)); 2197c208ed6SRick Macklem ((struct sockaddr_in *) 2207c208ed6SRick Macklem &nd3->myif.ifra_broadaddr)->sin_addr.s_addr = 2217c208ed6SRick Macklem myaddr.sin_addr.s_addr | ~ netmask.sin_addr.s_addr; 2227c208ed6SRick Macklem bcopy(&netmask, &nd3->myif.ifra_mask, sizeof(netmask)); 2237c208ed6SRick Macklem } else { 2247c208ed6SRick Macklem bcopy(&myaddr, &nd->myif.ifra_addr, sizeof(myaddr)); 2257c208ed6SRick Macklem bcopy(&myaddr, &nd->myif.ifra_broadaddr, sizeof(myaddr)); 2267c208ed6SRick Macklem ((struct sockaddr_in *) 2277c208ed6SRick Macklem &nd->myif.ifra_broadaddr)->sin_addr.s_addr = 2287c208ed6SRick Macklem myaddr.sin_addr.s_addr | ~ netmask.sin_addr.s_addr; 2297c208ed6SRick Macklem bcopy(&netmask, &nd->myif.ifra_mask, sizeof(netmask)); 2307c208ed6SRick Macklem } 2317c208ed6SRick Macklem 2327c208ed6SRick Macklem if (hwaddr_to_sockaddr("boot.netif.hwaddr", &ourdl)) { 2337c208ed6SRick Macklem printf("nfs_diskless: no hardware address\n"); 2347c208ed6SRick Macklem return; 2357c208ed6SRick Macklem } 236e488229bSIan Lepore timeout_at = time_uptime + NFS_IFACE_TIMEOUT_SECS; 237e488229bSIan Lepore retry: 2387c208ed6SRick Macklem CURVNET_SET(TD_TO_VNET(curthread)); 2390785c323SJustin Hibbits NET_EPOCH_ENTER(et); 2400785c323SJustin Hibbits for (ifp = if_iter_start(&iter); ifp != NULL; ifp = if_iter_next(&iter)) { 241*30ff1255SAlexander Motin cnt = if_foreach_lladdr(ifp, nfs_setup_diskless_ifa_cb, &ourdl); 242*30ff1255SAlexander Motin if (cnt > 0) 2430785c323SJustin Hibbits break; 2440785c323SJustin Hibbits } 2450785c323SJustin Hibbits if_iter_finish(&iter); 2460785c323SJustin Hibbits NET_EPOCH_EXIT(et); 2477c208ed6SRick Macklem CURVNET_RESTORE(); 248*30ff1255SAlexander Motin if (ifp != NULL) 2497c208ed6SRick Macklem goto match_done; 2500785c323SJustin Hibbits 251e488229bSIan Lepore if (time_uptime < timeout_at) { 252e488229bSIan Lepore pause("nfssdl", hz / 5); 253e488229bSIan Lepore goto retry; 254e488229bSIan Lepore } 2557c208ed6SRick Macklem printf("nfs_diskless: no interface\n"); 2567c208ed6SRick Macklem return; /* no matching interface */ 2577c208ed6SRick Macklem match_done: 2580785c323SJustin Hibbits kern_setenv("boot.netif.name", if_name(ifp)); 2597c208ed6SRick Macklem if (is_nfsv3 != 0) { 2600785c323SJustin Hibbits strlcpy(nd3->myif.ifra_name, if_name(ifp), 2617c208ed6SRick Macklem sizeof(nd3->myif.ifra_name)); 2627c208ed6SRick Macklem 2637c208ed6SRick Macklem /* set up gateway */ 2647c208ed6SRick Macklem inaddr_to_sockaddr("boot.netif.gateway", &nd3->mygateway); 2657c208ed6SRick Macklem 2667c208ed6SRick Macklem /* set up root mount */ 2677c208ed6SRick Macklem nd3->root_args.rsize = 32768; /* XXX tunable? */ 2687c208ed6SRick Macklem nd3->root_args.wsize = 32768; 2697c208ed6SRick Macklem nd3->root_args.sotype = SOCK_STREAM; 2707c208ed6SRick Macklem nd3->root_args.flags = (NFSMNT_NFSV3 | NFSMNT_WSIZE | 2717c208ed6SRick Macklem NFSMNT_RSIZE | NFSMNT_RESVPORT); 2727c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.nfsroot.server", 2737c208ed6SRick Macklem &nd3->root_saddr)) { 2747c208ed6SRick Macklem printf("nfs_diskless: no server\n"); 2757c208ed6SRick Macklem return; 2767c208ed6SRick Macklem } 2777c208ed6SRick Macklem nd3->root_saddr.sin_port = htons(NFS_PORT); 2787c208ed6SRick Macklem fhlen = decode_nfshandle("boot.nfsroot.nfshandle", 2797c208ed6SRick Macklem &nd3->root_fh[0], NFSX_V3FHMAX); 2807c208ed6SRick Macklem if (fhlen == 0) { 2817c208ed6SRick Macklem printf("nfs_diskless: no NFS handle\n"); 2827c208ed6SRick Macklem return; 2837c208ed6SRick Macklem } 2847c208ed6SRick Macklem if (fhlen != nd3->root_fhsize) { 2857c208ed6SRick Macklem printf("nfs_diskless: bad NFS handle len=%d\n", fhlen); 2867c208ed6SRick Macklem return; 2877c208ed6SRick Macklem } 2882be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.path")) != NULL) { 2897c208ed6SRick Macklem strncpy(nd3->root_hostnam, cp, MNAMELEN - 1); 2907c208ed6SRick Macklem freeenv(cp); 2917c208ed6SRick Macklem } 2922be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.options")) != NULL) { 2937c208ed6SRick Macklem nfs_parse_options(cp, &nd3->root_args); 2947c208ed6SRick Macklem freeenv(cp); 2957c208ed6SRick Macklem } 2967c208ed6SRick Macklem 2977c208ed6SRick Macklem nfs_diskless_valid = 3; 2987c208ed6SRick Macklem } else { 2990785c323SJustin Hibbits strlcpy(nd->myif.ifra_name, if_name(ifp), 3007c208ed6SRick Macklem sizeof(nd->myif.ifra_name)); 3017c208ed6SRick Macklem 3027c208ed6SRick Macklem /* set up gateway */ 3037c208ed6SRick Macklem inaddr_to_sockaddr("boot.netif.gateway", &nd->mygateway); 3047c208ed6SRick Macklem 3057c208ed6SRick Macklem /* set up root mount */ 3067c208ed6SRick Macklem nd->root_args.rsize = 8192; /* XXX tunable? */ 3077c208ed6SRick Macklem nd->root_args.wsize = 8192; 3087c208ed6SRick Macklem nd->root_args.sotype = SOCK_STREAM; 3097c208ed6SRick Macklem nd->root_args.flags = (NFSMNT_WSIZE | 3107c208ed6SRick Macklem NFSMNT_RSIZE | NFSMNT_RESVPORT); 3117c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.nfsroot.server", 3127c208ed6SRick Macklem &nd->root_saddr)) { 3137c208ed6SRick Macklem printf("nfs_diskless: no server\n"); 3147c208ed6SRick Macklem return; 3157c208ed6SRick Macklem } 3167c208ed6SRick Macklem nd->root_saddr.sin_port = htons(NFS_PORT); 3177c208ed6SRick Macklem if (decode_nfshandle("boot.nfsroot.nfshandle", 3187c208ed6SRick Macklem &nd->root_fh[0], NFSX_V2FH) == 0) { 3197c208ed6SRick Macklem printf("nfs_diskless: no NFS handle\n"); 3207c208ed6SRick Macklem return; 3217c208ed6SRick Macklem } 3222be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.path")) != NULL) { 3237c208ed6SRick Macklem strncpy(nd->root_hostnam, cp, MNAMELEN - 1); 3247c208ed6SRick Macklem freeenv(cp); 3257c208ed6SRick Macklem } 3262be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.options")) != NULL) { 3277c208ed6SRick Macklem struct nfs_args args; 3287c208ed6SRick Macklem 3297c208ed6SRick Macklem /* 3307c208ed6SRick Macklem * XXX yech, convert between old and current 3317c208ed6SRick Macklem * arg format 3327c208ed6SRick Macklem */ 3337c208ed6SRick Macklem args.flags = nd->root_args.flags; 3347c208ed6SRick Macklem args.sotype = nd->root_args.sotype; 3357c208ed6SRick Macklem args.rsize = nd->root_args.rsize; 3367c208ed6SRick Macklem args.wsize = nd->root_args.wsize; 3377c208ed6SRick Macklem nfs_parse_options(cp, &args); 3387c208ed6SRick Macklem nd->root_args.flags = args.flags; 3397c208ed6SRick Macklem nd->root_args.sotype = args.sotype; 3407c208ed6SRick Macklem nd->root_args.rsize = args.rsize; 3417c208ed6SRick Macklem nd->root_args.wsize = args.wsize; 3427c208ed6SRick Macklem freeenv(cp); 3437c208ed6SRick Macklem } 3447c208ed6SRick Macklem 3457c208ed6SRick Macklem nfs_diskless_valid = 1; 3467c208ed6SRick Macklem } 3477c208ed6SRick Macklem } 3487c208ed6SRick Macklem 3497c208ed6SRick Macklem static int 3507c208ed6SRick Macklem inaddr_to_sockaddr(char *ev, struct sockaddr_in *sa) 3517c208ed6SRick Macklem { 3527c208ed6SRick Macklem u_int32_t a[4]; 3537c208ed6SRick Macklem char *cp; 3547c208ed6SRick Macklem int count; 3557c208ed6SRick Macklem 3567c208ed6SRick Macklem bzero(sa, sizeof(*sa)); 3577c208ed6SRick Macklem sa->sin_len = sizeof(*sa); 3587c208ed6SRick Macklem sa->sin_family = AF_INET; 3597c208ed6SRick Macklem 3602be111bfSDavide Italiano if ((cp = kern_getenv(ev)) == NULL) 3617c208ed6SRick Macklem return (1); 3627c208ed6SRick Macklem count = sscanf(cp, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]); 3637c208ed6SRick Macklem freeenv(cp); 3647c208ed6SRick Macklem if (count != 4) 3657c208ed6SRick Macklem return (1); 3667c208ed6SRick Macklem sa->sin_addr.s_addr = 3677c208ed6SRick Macklem htonl((a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]); 3687c208ed6SRick Macklem return (0); 3697c208ed6SRick Macklem } 3707c208ed6SRick Macklem 3717c208ed6SRick Macklem static int 3727c208ed6SRick Macklem hwaddr_to_sockaddr(char *ev, struct sockaddr_dl *sa) 3737c208ed6SRick Macklem { 3747c208ed6SRick Macklem char *cp; 3757c208ed6SRick Macklem u_int32_t a[6]; 3767c208ed6SRick Macklem int count; 3777c208ed6SRick Macklem 3787c208ed6SRick Macklem bzero(sa, sizeof(*sa)); 3797c208ed6SRick Macklem sa->sdl_len = sizeof(*sa); 3807c208ed6SRick Macklem sa->sdl_family = AF_LINK; 3817c208ed6SRick Macklem sa->sdl_type = IFT_ETHER; 3827c208ed6SRick Macklem sa->sdl_alen = ETHER_ADDR_LEN; 3832be111bfSDavide Italiano if ((cp = kern_getenv(ev)) == NULL) 3847c208ed6SRick Macklem return (1); 3857c208ed6SRick Macklem count = sscanf(cp, "%x:%x:%x:%x:%x:%x", 3867c208ed6SRick Macklem &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]); 3877c208ed6SRick Macklem freeenv(cp); 3887c208ed6SRick Macklem if (count != 6) 3897c208ed6SRick Macklem return (1); 3907c208ed6SRick Macklem sa->sdl_data[0] = a[0]; 3917c208ed6SRick Macklem sa->sdl_data[1] = a[1]; 3927c208ed6SRick Macklem sa->sdl_data[2] = a[2]; 3937c208ed6SRick Macklem sa->sdl_data[3] = a[3]; 3947c208ed6SRick Macklem sa->sdl_data[4] = a[4]; 3957c208ed6SRick Macklem sa->sdl_data[5] = a[5]; 3967c208ed6SRick Macklem return (0); 3977c208ed6SRick Macklem } 3987c208ed6SRick Macklem 3997c208ed6SRick Macklem static int 4007c208ed6SRick Macklem decode_nfshandle(char *ev, u_char *fh, int maxfh) 4017c208ed6SRick Macklem { 4027c208ed6SRick Macklem u_char *cp, *ep; 4037c208ed6SRick Macklem int len, val; 4047c208ed6SRick Macklem 4052be111bfSDavide Italiano ep = cp = kern_getenv(ev); 4067c208ed6SRick Macklem if (cp == NULL) 4077c208ed6SRick Macklem return (0); 4087c208ed6SRick Macklem if ((strlen(cp) < 2) || (*cp != 'X')) { 4097c208ed6SRick Macklem freeenv(ep); 4107c208ed6SRick Macklem return (0); 4117c208ed6SRick Macklem } 4127c208ed6SRick Macklem len = 0; 4137c208ed6SRick Macklem cp++; 4147c208ed6SRick Macklem for (;;) { 4157c208ed6SRick Macklem if (*cp == 'X') { 4167c208ed6SRick Macklem freeenv(ep); 4177c208ed6SRick Macklem return (len); 4187c208ed6SRick Macklem } 4197c208ed6SRick Macklem if ((sscanf(cp, "%2x", &val) != 1) || (val > 0xff)) { 4207c208ed6SRick Macklem freeenv(ep); 4217c208ed6SRick Macklem return (0); 4227c208ed6SRick Macklem } 4237c208ed6SRick Macklem *(fh++) = val; 4247c208ed6SRick Macklem len++; 4257c208ed6SRick Macklem cp += 2; 4267c208ed6SRick Macklem if (len > maxfh) { 4277c208ed6SRick Macklem freeenv(ep); 4287c208ed6SRick Macklem return (0); 4297c208ed6SRick Macklem } 4307c208ed6SRick Macklem } 4317c208ed6SRick Macklem } 4327c208ed6SRick Macklem 4337c208ed6SRick Macklem #if !defined(BOOTP_NFSROOT) 4347c208ed6SRick Macklem static void 4357c208ed6SRick Macklem nfs_rootconf(void) 4367c208ed6SRick Macklem { 4377c208ed6SRick Macklem 4387c208ed6SRick Macklem nfs_setup_diskless(); 4397c208ed6SRick Macklem if (nfs_diskless_valid) 4407c208ed6SRick Macklem rootdevnames[0] = "nfs:"; 4417c208ed6SRick Macklem } 4427c208ed6SRick Macklem 4437c208ed6SRick Macklem SYSINIT(cpu_rootconf, SI_SUB_ROOT_CONF, SI_ORDER_FIRST, nfs_rootconf, NULL); 4447c208ed6SRick Macklem #endif 445