17c208ed6SRick Macklem /*- 27c208ed6SRick Macklem * Copyright (c) 1990 The Regents of the University of California. 37c208ed6SRick Macklem * All rights reserved. 47c208ed6SRick Macklem * 57c208ed6SRick Macklem * This code is derived from software contributed to Berkeley by 67c208ed6SRick Macklem * William Jolitz. 77c208ed6SRick Macklem * 87c208ed6SRick Macklem * Redistribution and use in source and binary forms, with or without 97c208ed6SRick Macklem * modification, are permitted provided that the following conditions 107c208ed6SRick Macklem * are met: 117c208ed6SRick Macklem * 1. Redistributions of source code must retain the above copyright 127c208ed6SRick Macklem * notice, this list of conditions and the following disclaimer. 137c208ed6SRick Macklem * 2. Redistributions in binary form must reproduce the above copyright 147c208ed6SRick Macklem * notice, this list of conditions and the following disclaimer in the 157c208ed6SRick Macklem * documentation and/or other materials provided with the distribution. 16fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 177c208ed6SRick Macklem * may be used to endorse or promote products derived from this software 187c208ed6SRick Macklem * without specific prior written permission. 197c208ed6SRick Macklem * 207c208ed6SRick Macklem * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 217c208ed6SRick Macklem * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 227c208ed6SRick Macklem * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 237c208ed6SRick Macklem * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 247c208ed6SRick Macklem * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 257c208ed6SRick Macklem * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 267c208ed6SRick Macklem * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 277c208ed6SRick Macklem * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 287c208ed6SRick Macklem * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 297c208ed6SRick Macklem * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 307c208ed6SRick Macklem * SUCH DAMAGE. 317c208ed6SRick Macklem * 327c208ed6SRick Macklem * from: @(#)autoconf.c 7.1 (Berkeley) 5/9/91 337c208ed6SRick Macklem */ 347c208ed6SRick Macklem 357c208ed6SRick Macklem #include <sys/cdefs.h> 367c208ed6SRick Macklem __FBSDID("$FreeBSD$"); 377c208ed6SRick Macklem 387c208ed6SRick Macklem #include "opt_bootp.h" 397c208ed6SRick Macklem 407c208ed6SRick Macklem #include <sys/param.h> 417c208ed6SRick Macklem #include <sys/systm.h> 427c208ed6SRick Macklem #include <sys/jail.h> 437c208ed6SRick Macklem #include <sys/kernel.h> 447c208ed6SRick Macklem #include <sys/malloc.h> 457c208ed6SRick Macklem #include <sys/mount.h> 467c208ed6SRick Macklem #include <sys/socket.h> 477c208ed6SRick Macklem 487c208ed6SRick Macklem #include <net/if.h> 497c208ed6SRick Macklem #include <net/if_dl.h> 507c208ed6SRick Macklem #include <net/if_types.h> 517c208ed6SRick Macklem #include <net/if_var.h> 527c208ed6SRick Macklem #include <net/ethernet.h> 537c208ed6SRick Macklem #include <net/vnet.h> 547c208ed6SRick Macklem 557c208ed6SRick Macklem #include <netinet/in.h> 567c208ed6SRick Macklem #include <nfs/nfsproto.h> 577c208ed6SRick Macklem #include <nfsclient/nfs.h> 587c208ed6SRick Macklem #include <nfs/nfsdiskless.h> 597c208ed6SRick Macklem 60e488229bSIan Lepore #define NFS_IFACE_TIMEOUT_SECS 10 /* Timeout for interface to appear. */ 61e488229bSIan Lepore 627c208ed6SRick Macklem static int inaddr_to_sockaddr(char *ev, struct sockaddr_in *sa); 637c208ed6SRick Macklem static int hwaddr_to_sockaddr(char *ev, struct sockaddr_dl *sa); 647c208ed6SRick Macklem static int decode_nfshandle(char *ev, u_char *fh, int maxfh); 657c208ed6SRick Macklem 667c208ed6SRick Macklem /* 677c208ed6SRick Macklem * This structure must be filled in by a primary bootstrap or bootstrap 687c208ed6SRick Macklem * server for a diskless/dataless machine. It is initialized below just 697c208ed6SRick Macklem * to ensure that it is allocated to initialized data (.data not .bss). 707c208ed6SRick Macklem */ 717c208ed6SRick Macklem struct nfs_diskless nfs_diskless = { { { 0 } } }; 727c208ed6SRick Macklem struct nfsv3_diskless nfsv3_diskless = { { { 0 } } }; 737c208ed6SRick Macklem int nfs_diskless_valid = 0; 747c208ed6SRick Macklem 757c208ed6SRick Macklem /* 767c208ed6SRick Macklem * Validate/sanity check a rsize/wsize parameter. 777c208ed6SRick Macklem */ 787c208ed6SRick Macklem static int 797c208ed6SRick Macklem checkrwsize(unsigned long v, const char *name) 807c208ed6SRick Macklem { 817c208ed6SRick Macklem /* 827c208ed6SRick Macklem * 32K is used as an upper bound because most servers 837c208ed6SRick Macklem * limit block size to satisfy IPv4's limit of 847c208ed6SRick Macklem * 64K/reassembled packet. The lower bound is pretty 857c208ed6SRick Macklem * much arbitrary. 867c208ed6SRick Macklem */ 877c208ed6SRick Macklem if (!(4 <= v && v <= 32*1024)) { 887c208ed6SRick Macklem printf("nfs_parse_options: invalid %s %lu ignored\n", name, v); 897c208ed6SRick Macklem return 0; 907c208ed6SRick Macklem } else 917c208ed6SRick Macklem return 1; 927c208ed6SRick Macklem } 937c208ed6SRick Macklem 947c208ed6SRick Macklem /* 957c208ed6SRick Macklem * Parse mount options and apply them to the supplied 967c208ed6SRick Macklem * nfs_diskless state. Used also by bootp/dhcp support. 977c208ed6SRick Macklem */ 987c208ed6SRick Macklem void 997c208ed6SRick Macklem nfs_parse_options(const char *envopts, struct nfs_args *nd) 1007c208ed6SRick Macklem { 1017c208ed6SRick Macklem char *opts, *o, *otmp; 1027c208ed6SRick Macklem unsigned long v; 1037c208ed6SRick Macklem 1047c208ed6SRick Macklem opts = strdup(envopts, M_TEMP); 1057c208ed6SRick Macklem otmp = opts; 1067c208ed6SRick Macklem while ((o = strsep(&otmp, ":;, ")) != NULL) { 1077c208ed6SRick Macklem if (*o == '\0') 1087c208ed6SRick Macklem ; /* Skip empty options. */ 1097c208ed6SRick Macklem else if (strcmp(o, "soft") == 0) 1107c208ed6SRick Macklem nd->flags |= NFSMNT_SOFT; 1117c208ed6SRick Macklem else if (strcmp(o, "intr") == 0) 1127c208ed6SRick Macklem nd->flags |= NFSMNT_INT; 1137c208ed6SRick Macklem else if (strcmp(o, "conn") == 0) 1147c208ed6SRick Macklem nd->flags |= NFSMNT_NOCONN; 1157c208ed6SRick Macklem else if (strcmp(o, "nolockd") == 0) 1167c208ed6SRick Macklem nd->flags |= NFSMNT_NOLOCKD; 117e2f2b370SRuslan Ermilov else if (strcmp(o, "nocto") == 0) 118e2f2b370SRuslan Ermilov nd->flags |= NFSMNT_NOCTO; 1197c208ed6SRick Macklem else if (strcmp(o, "nfsv2") == 0) 1207c208ed6SRick Macklem nd->flags &= ~(NFSMNT_NFSV3 | NFSMNT_NFSV4); 1217c208ed6SRick Macklem else if (strcmp(o, "nfsv3") == 0) { 1227c208ed6SRick Macklem nd->flags &= ~NFSMNT_NFSV4; 1237c208ed6SRick Macklem nd->flags |= NFSMNT_NFSV3; 1247c208ed6SRick Macklem } else if (strcmp(o, "tcp") == 0) 1257c208ed6SRick Macklem nd->sotype = SOCK_STREAM; 1267c208ed6SRick Macklem else if (strcmp(o, "udp") == 0) 1277c208ed6SRick Macklem nd->sotype = SOCK_DGRAM; 1287c208ed6SRick Macklem else if (strncmp(o, "rsize=", 6) == 0) { 1297c208ed6SRick Macklem v = strtoul(o+6, NULL, 10); 1307c208ed6SRick Macklem if (checkrwsize(v, "rsize")) { 1317c208ed6SRick Macklem nd->rsize = (int) v; 1327c208ed6SRick Macklem nd->flags |= NFSMNT_RSIZE; 1337c208ed6SRick Macklem } 1347c208ed6SRick Macklem } else if (strncmp(o, "wsize=", 6) == 0) { 1357c208ed6SRick Macklem v = strtoul(o+6, NULL, 10); 1367c208ed6SRick Macklem if (checkrwsize(v, "wsize")) { 1377c208ed6SRick Macklem nd->wsize = (int) v; 1387c208ed6SRick Macklem nd->flags |= NFSMNT_WSIZE; 1397c208ed6SRick Macklem } 1407c208ed6SRick Macklem } else 1417c208ed6SRick Macklem printf("%s: skipping unknown option \"%s\"\n", 1427c208ed6SRick Macklem __func__, o); 1437c208ed6SRick Macklem } 1447c208ed6SRick Macklem free(opts, M_TEMP); 1457c208ed6SRick Macklem } 1467c208ed6SRick Macklem 1477c208ed6SRick Macklem /* 1487c208ed6SRick Macklem * Populate the essential fields in the nfsv3_diskless structure. 1497c208ed6SRick Macklem * 1507c208ed6SRick Macklem * The loader is expected to export the following environment variables: 1517c208ed6SRick Macklem * 1527c208ed6SRick Macklem * boot.netif.name name of boot interface 1537c208ed6SRick Macklem * boot.netif.ip IP address on boot interface 1547c208ed6SRick Macklem * boot.netif.netmask netmask on boot interface 1557c208ed6SRick Macklem * boot.netif.gateway default gateway (optional) 1567c208ed6SRick Macklem * boot.netif.hwaddr hardware address of boot interface 157b50d46dfSIan Lepore * boot.netif.mtu interface mtu from bootp/dhcp (optional) 1587c208ed6SRick Macklem * boot.nfsroot.server IP address of root filesystem server 1597c208ed6SRick Macklem * boot.nfsroot.path path of the root filesystem on server 1607c208ed6SRick Macklem * boot.nfsroot.nfshandle NFS handle for root filesystem on server 1617c208ed6SRick Macklem * boot.nfsroot.nfshandlelen and length of this handle (for NFSv3 only) 1627c208ed6SRick Macklem * boot.nfsroot.options NFS options for the root filesystem 1637c208ed6SRick Macklem */ 1647c208ed6SRick Macklem void 1657c208ed6SRick Macklem nfs_setup_diskless(void) 1667c208ed6SRick Macklem { 1677c208ed6SRick Macklem struct nfs_diskless *nd = &nfs_diskless; 1687c208ed6SRick Macklem struct nfsv3_diskless *nd3 = &nfsv3_diskless; 1697c208ed6SRick Macklem struct ifnet *ifp; 1707c208ed6SRick Macklem struct ifaddr *ifa; 1717c208ed6SRick Macklem struct sockaddr_dl *sdl, ourdl; 1727c208ed6SRick Macklem struct sockaddr_in myaddr, netmask; 1737c208ed6SRick Macklem char *cp; 1747c208ed6SRick Macklem int cnt, fhlen, is_nfsv3; 1757c208ed6SRick Macklem uint32_t len; 176e488229bSIan Lepore time_t timeout_at; 1777c208ed6SRick Macklem 1787c208ed6SRick Macklem if (nfs_diskless_valid != 0) 1797c208ed6SRick Macklem return; 1807c208ed6SRick Macklem 1817c208ed6SRick Macklem /* get handle size. If this succeeds, it's an NFSv3 setup. */ 1822be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.nfshandlelen")) != NULL) { 1837c208ed6SRick Macklem cnt = sscanf(cp, "%d", &len); 1847c208ed6SRick Macklem freeenv(cp); 1857c208ed6SRick Macklem if (cnt != 1 || len == 0 || len > NFSX_V3FHMAX) { 1867c208ed6SRick Macklem printf("nfs_diskless: bad NFS handle len\n"); 1877c208ed6SRick Macklem return; 1887c208ed6SRick Macklem } 1897c208ed6SRick Macklem nd3->root_fhsize = len; 1907c208ed6SRick Macklem is_nfsv3 = 1; 1917c208ed6SRick Macklem } else 1927c208ed6SRick Macklem is_nfsv3 = 0; 1937c208ed6SRick Macklem /* set up interface */ 1947c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.netif.ip", &myaddr)) 1957c208ed6SRick Macklem return; 1967c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.netif.netmask", &netmask)) { 1977c208ed6SRick Macklem printf("nfs_diskless: no netmask\n"); 1987c208ed6SRick Macklem return; 1997c208ed6SRick Macklem } 2007c208ed6SRick Macklem if (is_nfsv3 != 0) { 2017c208ed6SRick Macklem bcopy(&myaddr, &nd3->myif.ifra_addr, sizeof(myaddr)); 2027c208ed6SRick Macklem bcopy(&myaddr, &nd3->myif.ifra_broadaddr, sizeof(myaddr)); 2037c208ed6SRick Macklem ((struct sockaddr_in *) 2047c208ed6SRick Macklem &nd3->myif.ifra_broadaddr)->sin_addr.s_addr = 2057c208ed6SRick Macklem myaddr.sin_addr.s_addr | ~ netmask.sin_addr.s_addr; 2067c208ed6SRick Macklem bcopy(&netmask, &nd3->myif.ifra_mask, sizeof(netmask)); 2077c208ed6SRick Macklem } else { 2087c208ed6SRick Macklem bcopy(&myaddr, &nd->myif.ifra_addr, sizeof(myaddr)); 2097c208ed6SRick Macklem bcopy(&myaddr, &nd->myif.ifra_broadaddr, sizeof(myaddr)); 2107c208ed6SRick Macklem ((struct sockaddr_in *) 2117c208ed6SRick Macklem &nd->myif.ifra_broadaddr)->sin_addr.s_addr = 2127c208ed6SRick Macklem myaddr.sin_addr.s_addr | ~ netmask.sin_addr.s_addr; 2137c208ed6SRick Macklem bcopy(&netmask, &nd->myif.ifra_mask, sizeof(netmask)); 2147c208ed6SRick Macklem } 2157c208ed6SRick Macklem 2167c208ed6SRick Macklem if (hwaddr_to_sockaddr("boot.netif.hwaddr", &ourdl)) { 2177c208ed6SRick Macklem printf("nfs_diskless: no hardware address\n"); 2187c208ed6SRick Macklem return; 2197c208ed6SRick Macklem } 2207c208ed6SRick Macklem ifa = NULL; 221e488229bSIan Lepore timeout_at = time_uptime + NFS_IFACE_TIMEOUT_SECS; 222e488229bSIan Lepore retry: 2237c208ed6SRick Macklem CURVNET_SET(TD_TO_VNET(curthread)); 2247c208ed6SRick Macklem IFNET_RLOCK(); 2257c208ed6SRick Macklem TAILQ_FOREACH(ifp, &V_ifnet, if_link) { 2267c208ed6SRick Macklem TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { 2277c208ed6SRick Macklem if (ifa->ifa_addr->sa_family == AF_LINK) { 2287c208ed6SRick Macklem sdl = (struct sockaddr_dl *)ifa->ifa_addr; 2297c208ed6SRick Macklem if ((sdl->sdl_type == ourdl.sdl_type) && 2307c208ed6SRick Macklem (sdl->sdl_alen == ourdl.sdl_alen) && 2317c208ed6SRick Macklem !bcmp(LLADDR(sdl), 2327c208ed6SRick Macklem LLADDR(&ourdl), 2337c208ed6SRick Macklem sdl->sdl_alen)) { 2347c208ed6SRick Macklem IFNET_RUNLOCK(); 2357c208ed6SRick Macklem CURVNET_RESTORE(); 2367c208ed6SRick Macklem goto match_done; 2377c208ed6SRick Macklem } 2387c208ed6SRick Macklem } 2397c208ed6SRick Macklem } 2407c208ed6SRick Macklem } 2417c208ed6SRick Macklem IFNET_RUNLOCK(); 2427c208ed6SRick Macklem CURVNET_RESTORE(); 243e488229bSIan Lepore if (time_uptime < timeout_at) { 244e488229bSIan Lepore pause("nfssdl", hz / 5); 245e488229bSIan Lepore goto retry; 246e488229bSIan Lepore } 2477c208ed6SRick Macklem printf("nfs_diskless: no interface\n"); 2487c208ed6SRick Macklem return; /* no matching interface */ 2497c208ed6SRick Macklem match_done: 2502be111bfSDavide Italiano kern_setenv("boot.netif.name", ifp->if_xname); 2517c208ed6SRick Macklem if (is_nfsv3 != 0) { 2527c208ed6SRick Macklem strlcpy(nd3->myif.ifra_name, ifp->if_xname, 2537c208ed6SRick Macklem sizeof(nd3->myif.ifra_name)); 2547c208ed6SRick Macklem 2557c208ed6SRick Macklem /* set up gateway */ 2567c208ed6SRick Macklem inaddr_to_sockaddr("boot.netif.gateway", &nd3->mygateway); 2577c208ed6SRick Macklem 2587c208ed6SRick Macklem /* set up root mount */ 2597c208ed6SRick Macklem nd3->root_args.rsize = 32768; /* XXX tunable? */ 2607c208ed6SRick Macklem nd3->root_args.wsize = 32768; 2617c208ed6SRick Macklem nd3->root_args.sotype = SOCK_STREAM; 2627c208ed6SRick Macklem nd3->root_args.flags = (NFSMNT_NFSV3 | NFSMNT_WSIZE | 2637c208ed6SRick Macklem NFSMNT_RSIZE | NFSMNT_RESVPORT); 2647c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.nfsroot.server", 2657c208ed6SRick Macklem &nd3->root_saddr)) { 2667c208ed6SRick Macklem printf("nfs_diskless: no server\n"); 2677c208ed6SRick Macklem return; 2687c208ed6SRick Macklem } 2697c208ed6SRick Macklem nd3->root_saddr.sin_port = htons(NFS_PORT); 2707c208ed6SRick Macklem fhlen = decode_nfshandle("boot.nfsroot.nfshandle", 2717c208ed6SRick Macklem &nd3->root_fh[0], NFSX_V3FHMAX); 2727c208ed6SRick Macklem if (fhlen == 0) { 2737c208ed6SRick Macklem printf("nfs_diskless: no NFS handle\n"); 2747c208ed6SRick Macklem return; 2757c208ed6SRick Macklem } 2767c208ed6SRick Macklem if (fhlen != nd3->root_fhsize) { 2777c208ed6SRick Macklem printf("nfs_diskless: bad NFS handle len=%d\n", fhlen); 2787c208ed6SRick Macklem return; 2797c208ed6SRick Macklem } 2802be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.path")) != NULL) { 2817c208ed6SRick Macklem strncpy(nd3->root_hostnam, cp, MNAMELEN - 1); 2827c208ed6SRick Macklem freeenv(cp); 2837c208ed6SRick Macklem } 2842be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.options")) != NULL) { 2857c208ed6SRick Macklem nfs_parse_options(cp, &nd3->root_args); 2867c208ed6SRick Macklem freeenv(cp); 2877c208ed6SRick Macklem } 2887c208ed6SRick Macklem 2897c208ed6SRick Macklem nfs_diskless_valid = 3; 2907c208ed6SRick Macklem } else { 2917c208ed6SRick Macklem strlcpy(nd->myif.ifra_name, ifp->if_xname, 2927c208ed6SRick Macklem sizeof(nd->myif.ifra_name)); 2937c208ed6SRick Macklem 2947c208ed6SRick Macklem /* set up gateway */ 2957c208ed6SRick Macklem inaddr_to_sockaddr("boot.netif.gateway", &nd->mygateway); 2967c208ed6SRick Macklem 2977c208ed6SRick Macklem /* set up root mount */ 2987c208ed6SRick Macklem nd->root_args.rsize = 8192; /* XXX tunable? */ 2997c208ed6SRick Macklem nd->root_args.wsize = 8192; 3007c208ed6SRick Macklem nd->root_args.sotype = SOCK_STREAM; 3017c208ed6SRick Macklem nd->root_args.flags = (NFSMNT_WSIZE | 3027c208ed6SRick Macklem NFSMNT_RSIZE | NFSMNT_RESVPORT); 3037c208ed6SRick Macklem if (inaddr_to_sockaddr("boot.nfsroot.server", 3047c208ed6SRick Macklem &nd->root_saddr)) { 3057c208ed6SRick Macklem printf("nfs_diskless: no server\n"); 3067c208ed6SRick Macklem return; 3077c208ed6SRick Macklem } 3087c208ed6SRick Macklem nd->root_saddr.sin_port = htons(NFS_PORT); 3097c208ed6SRick Macklem if (decode_nfshandle("boot.nfsroot.nfshandle", 3107c208ed6SRick Macklem &nd->root_fh[0], NFSX_V2FH) == 0) { 3117c208ed6SRick Macklem printf("nfs_diskless: no NFS handle\n"); 3127c208ed6SRick Macklem return; 3137c208ed6SRick Macklem } 3142be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.path")) != NULL) { 3157c208ed6SRick Macklem strncpy(nd->root_hostnam, cp, MNAMELEN - 1); 3167c208ed6SRick Macklem freeenv(cp); 3177c208ed6SRick Macklem } 3182be111bfSDavide Italiano if ((cp = kern_getenv("boot.nfsroot.options")) != NULL) { 3197c208ed6SRick Macklem struct nfs_args args; 3207c208ed6SRick Macklem 3217c208ed6SRick Macklem /* 3227c208ed6SRick Macklem * XXX yech, convert between old and current 3237c208ed6SRick Macklem * arg format 3247c208ed6SRick Macklem */ 3257c208ed6SRick Macklem args.flags = nd->root_args.flags; 3267c208ed6SRick Macklem args.sotype = nd->root_args.sotype; 3277c208ed6SRick Macklem args.rsize = nd->root_args.rsize; 3287c208ed6SRick Macklem args.wsize = nd->root_args.wsize; 3297c208ed6SRick Macklem nfs_parse_options(cp, &args); 3307c208ed6SRick Macklem nd->root_args.flags = args.flags; 3317c208ed6SRick Macklem nd->root_args.sotype = args.sotype; 3327c208ed6SRick Macklem nd->root_args.rsize = args.rsize; 3337c208ed6SRick Macklem nd->root_args.wsize = args.wsize; 3347c208ed6SRick Macklem freeenv(cp); 3357c208ed6SRick Macklem } 3367c208ed6SRick Macklem 3377c208ed6SRick Macklem nfs_diskless_valid = 1; 3387c208ed6SRick Macklem } 3397c208ed6SRick Macklem } 3407c208ed6SRick Macklem 3417c208ed6SRick Macklem static int 3427c208ed6SRick Macklem inaddr_to_sockaddr(char *ev, struct sockaddr_in *sa) 3437c208ed6SRick Macklem { 3447c208ed6SRick Macklem u_int32_t a[4]; 3457c208ed6SRick Macklem char *cp; 3467c208ed6SRick Macklem int count; 3477c208ed6SRick Macklem 3487c208ed6SRick Macklem bzero(sa, sizeof(*sa)); 3497c208ed6SRick Macklem sa->sin_len = sizeof(*sa); 3507c208ed6SRick Macklem sa->sin_family = AF_INET; 3517c208ed6SRick Macklem 3522be111bfSDavide Italiano if ((cp = kern_getenv(ev)) == NULL) 3537c208ed6SRick Macklem return (1); 3547c208ed6SRick Macklem count = sscanf(cp, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]); 3557c208ed6SRick Macklem freeenv(cp); 3567c208ed6SRick Macklem if (count != 4) 3577c208ed6SRick Macklem return (1); 3587c208ed6SRick Macklem sa->sin_addr.s_addr = 3597c208ed6SRick Macklem htonl((a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]); 3607c208ed6SRick Macklem return (0); 3617c208ed6SRick Macklem } 3627c208ed6SRick Macklem 3637c208ed6SRick Macklem static int 3647c208ed6SRick Macklem hwaddr_to_sockaddr(char *ev, struct sockaddr_dl *sa) 3657c208ed6SRick Macklem { 3667c208ed6SRick Macklem char *cp; 3677c208ed6SRick Macklem u_int32_t a[6]; 3687c208ed6SRick Macklem int count; 3697c208ed6SRick Macklem 3707c208ed6SRick Macklem bzero(sa, sizeof(*sa)); 3717c208ed6SRick Macklem sa->sdl_len = sizeof(*sa); 3727c208ed6SRick Macklem sa->sdl_family = AF_LINK; 3737c208ed6SRick Macklem sa->sdl_type = IFT_ETHER; 3747c208ed6SRick Macklem sa->sdl_alen = ETHER_ADDR_LEN; 3752be111bfSDavide Italiano if ((cp = kern_getenv(ev)) == NULL) 3767c208ed6SRick Macklem return (1); 3777c208ed6SRick Macklem count = sscanf(cp, "%x:%x:%x:%x:%x:%x", 3787c208ed6SRick Macklem &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]); 3797c208ed6SRick Macklem freeenv(cp); 3807c208ed6SRick Macklem if (count != 6) 3817c208ed6SRick Macklem return (1); 3827c208ed6SRick Macklem sa->sdl_data[0] = a[0]; 3837c208ed6SRick Macklem sa->sdl_data[1] = a[1]; 3847c208ed6SRick Macklem sa->sdl_data[2] = a[2]; 3857c208ed6SRick Macklem sa->sdl_data[3] = a[3]; 3867c208ed6SRick Macklem sa->sdl_data[4] = a[4]; 3877c208ed6SRick Macklem sa->sdl_data[5] = a[5]; 3887c208ed6SRick Macklem return (0); 3897c208ed6SRick Macklem } 3907c208ed6SRick Macklem 3917c208ed6SRick Macklem static int 3927c208ed6SRick Macklem decode_nfshandle(char *ev, u_char *fh, int maxfh) 3937c208ed6SRick Macklem { 3947c208ed6SRick Macklem u_char *cp, *ep; 3957c208ed6SRick Macklem int len, val; 3967c208ed6SRick Macklem 3972be111bfSDavide Italiano ep = cp = kern_getenv(ev); 3987c208ed6SRick Macklem if (cp == NULL) 3997c208ed6SRick Macklem return (0); 4007c208ed6SRick Macklem if ((strlen(cp) < 2) || (*cp != 'X')) { 4017c208ed6SRick Macklem freeenv(ep); 4027c208ed6SRick Macklem return (0); 4037c208ed6SRick Macklem } 4047c208ed6SRick Macklem len = 0; 4057c208ed6SRick Macklem cp++; 4067c208ed6SRick Macklem for (;;) { 4077c208ed6SRick Macklem if (*cp == 'X') { 4087c208ed6SRick Macklem freeenv(ep); 4097c208ed6SRick Macklem return (len); 4107c208ed6SRick Macklem } 4117c208ed6SRick Macklem if ((sscanf(cp, "%2x", &val) != 1) || (val > 0xff)) { 4127c208ed6SRick Macklem freeenv(ep); 4137c208ed6SRick Macklem return (0); 4147c208ed6SRick Macklem } 4157c208ed6SRick Macklem *(fh++) = val; 4167c208ed6SRick Macklem len++; 4177c208ed6SRick Macklem cp += 2; 4187c208ed6SRick Macklem if (len > maxfh) { 4197c208ed6SRick Macklem freeenv(ep); 4207c208ed6SRick Macklem return (0); 4217c208ed6SRick Macklem } 4227c208ed6SRick Macklem } 4237c208ed6SRick Macklem } 4247c208ed6SRick Macklem 4257c208ed6SRick Macklem #if !defined(BOOTP_NFSROOT) 4267c208ed6SRick Macklem static void 4277c208ed6SRick Macklem nfs_rootconf(void) 4287c208ed6SRick Macklem { 4297c208ed6SRick Macklem 4307c208ed6SRick Macklem nfs_setup_diskless(); 4317c208ed6SRick Macklem if (nfs_diskless_valid) 4327c208ed6SRick Macklem rootdevnames[0] = "nfs:"; 4337c208ed6SRick Macklem } 4347c208ed6SRick Macklem 4357c208ed6SRick Macklem SYSINIT(cpu_rootconf, SI_SUB_ROOT_CONF, SI_ORDER_FIRST, nfs_rootconf, NULL); 4367c208ed6SRick Macklem #endif 4377c208ed6SRick Macklem 438