sparc64.c revision 1.2
1 /* $NetBSD: sparc64.c,v 1.2 2002/04/04 14:00:55 mrg Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Luke Mewburn of Wasabi Systems. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 2002 Matthew R. Green 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. The name of the author may not be used to endorse or promote products 52 * derived from this software without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 55 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 56 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 57 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 58 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 59 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 60 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 61 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 62 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 */ 66 67 #include <sys/cdefs.h> 68 #if defined(__RCSID) && !defined(__lint) 69 __RCSID("$NetBSD: sparc64.c,v 1.2 2002/04/04 14:00:55 mrg Exp $"); 70 #endif /* !__lint */ 71 72 #include <sys/param.h> 73 #include <sys/stat.h> 74 75 #include <assert.h> 76 #include <err.h> 77 #include <stddef.h> 78 #include <stdio.h> 79 #include <stdlib.h> 80 #include <string.h> 81 #include <unistd.h> 82 83 #include "installboot.h" 84 85 int sparc64_parseopt(ib_params *, const char *); 86 int sparc64_setboot(ib_params *); 87 int sparc64_clearboot(ib_params *); 88 89 int 90 sparc64_parseopt(ib_params *params, const char *option) 91 { 92 93 /* all options are unknown */ 94 warnx("Unknown -o option `%s'", option); 95 return (0); 96 } 97 98 #define SPARC64_BOOT_BLOCK_OFFSET DEV_BSIZE 99 #define SPARC64_BOOT_BLOCK_BLOCKSIZE DEV_BSIZE 100 101 int 102 sparc64_clearboot(ib_params *params) 103 { 104 char bb[512 * 15]; 105 ssize_t rv; 106 107 assert(params != NULL); 108 assert(params->fsfd != -1); 109 assert(params->filesystem != NULL); 110 111 if (params->flags & IB_STARTBLOCK) { 112 warnx("Can't use `-b bno' with `-c'"); 113 return (0); 114 } 115 /* first check that it _could_ exist here */ 116 rv = pread(params->fsfd, &bb, sizeof bb, SPARC64_BOOT_BLOCK_OFFSET); 117 if (rv == -1) { 118 warn("Reading `%s'", params->filesystem); 119 return (0); 120 } else if (rv != sizeof bb) { 121 warnx("Reading `%s': short read", params->filesystem); 122 return (0); 123 } 124 125 /* now clear it out to nothing */ 126 memset(&bb, 0, sizeof bb); 127 128 if (params->flags & IB_VERBOSE) 129 printf("%slearing boot block\n", 130 (params->flags & IB_NOWRITE) ? "Not c" : "C"); 131 if (params->flags & IB_NOWRITE) 132 return (1); 133 134 rv = pwrite(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET); 135 if (rv == -1) { 136 warn("Writing `%s'", params->filesystem); 137 return (0); 138 } else if (rv != sizeof(bb)) { 139 warnx("Writing `%s': short write", params->filesystem); 140 return (0); 141 } 142 143 return (1); 144 } 145 146 int 147 sparc64_setboot(ib_params *params) 148 { 149 struct stat bootstrapsb; 150 char bb[512 * 15]; 151 int startblock, retval; 152 ssize_t rv, bblen; 153 154 assert(params != NULL); 155 assert(params->fsfd != -1); 156 assert(params->filesystem != NULL); 157 assert(params->bbfd != -1); 158 assert(params->bootblock != NULL); 159 160 retval = 0; 161 162 if (fstat(params->bbfd, &bootstrapsb) == -1) { 163 warn("Examining `%s'", params->bootblock); 164 goto done; 165 } 166 if (!S_ISREG(bootstrapsb.st_mode)) { 167 warnx("`%s' must be a regular file", params->bootblock); 168 goto done; 169 } 170 171 bblen = read(params->bbfd, &bb, sizeof bb); 172 if (bblen == -1) { 173 warn("Reading `%s'", params->filesystem); 174 goto done; 175 } 176 177 if (params->flags & IB_STARTBLOCK) 178 startblock = params->startblock; 179 else 180 startblock = SPARC64_BOOT_BLOCK_OFFSET / 181 SPARC64_BOOT_BLOCK_BLOCKSIZE; 182 183 if (params->flags & IB_VERBOSE) { 184 printf("Bootstrap start sector: %#x\n", startblock); 185 printf("Bootstrap byte count: %#x\n", (unsigned)bblen); 186 printf("%sriting bootstrap\n", 187 (params->flags & IB_NOWRITE) ? "Not w" : "W"); 188 } 189 if (params->flags & IB_NOWRITE) { 190 retval = 1; 191 goto done; 192 } 193 if (params->flags & IB_VERBOSE) 194 printf("Writing boot block\n"); 195 196 rv = pwrite(params->fsfd, &bb, bblen, 197 startblock * SPARC64_BOOT_BLOCK_BLOCKSIZE); 198 if (rv == -1) { 199 warn("Writing `%s'", params->filesystem); 200 goto done; 201 } else if (rv != bblen) { 202 warnx("Writing `%s': short write", params->filesystem); 203 goto done; 204 } else 205 retval = 1; 206 207 done: 208 return (retval); 209 } 210
Indexes created Wed Oct 01 19:09:53 GMT 2025