sparc64.c revision 1.7
1 /* $NetBSD: sparc64.c,v 1.7 2002/04/17 04:00:44 fredette 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 1.7 2002/04/17 04:00:44 fredette 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_setboot(ib_params *); 86 int sparc64_clearboot(ib_params *); 87 88 #define SPARC64_BOOT_BLOCK_OFFSET DEV_BSIZE 89 #define SPARC64_BOOT_BLOCK_BLOCKSIZE DEV_BSIZE 90 #define SPARC64_BOOT_BLOCK_MAX_SIZE (DEV_BSIZE * 15) 91 92 int 93 sparc64_clearboot(ib_params *params) 94 { 95 char bb[SPARC64_BOOT_BLOCK_MAX_SIZE]; 96 ssize_t rv; 97 98 assert(params != NULL); 99 assert(params->fsfd != -1); 100 assert(params->filesystem != NULL); 101 102 if (params->flags & IB_STARTBLOCK) { 103 warnx("Can't use `-b bno' with `-c'"); 104 return (0); 105 } 106 /* first check that it _could_ exist here */ 107 rv = pread(params->fsfd, &bb, sizeof bb, SPARC64_BOOT_BLOCK_OFFSET); 108 if (rv == -1) { 109 warn("Reading `%s'", params->filesystem); 110 return (0); 111 } else if (rv != sizeof bb) { 112 warnx("Reading `%s': short read", params->filesystem); 113 return (0); 114 } 115 116 /* now clear it out to nothing */ 117 memset(&bb, 0, sizeof bb); 118 119 if (params->flags & IB_VERBOSE) 120 printf("%slearing boot block\n", 121 (params->flags & IB_NOWRITE) ? "Not c" : "C"); 122 if (params->flags & IB_NOWRITE) 123 return (1); 124 125 rv = pwrite(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET); 126 if (rv == -1) { 127 warn("Writing `%s'", params->filesystem); 128 return (0); 129 } else if (rv != sizeof(bb)) { 130 warnx("Writing `%s': short write", params->filesystem); 131 return (0); 132 } 133 134 return (1); 135 } 136 137 int 138 sparc64_setboot(ib_params *params) 139 { 140 struct stat bootstrapsb; 141 char bb[SPARC64_BOOT_BLOCK_MAX_SIZE]; 142 int startblock, retval; 143 ssize_t rv; 144 145 assert(params != NULL); 146 assert(params->fsfd != -1); 147 assert(params->filesystem != NULL); 148 assert(params->s1fd != -1); 149 assert(params->stage1 != NULL); 150 151 retval = 0; 152 153 if (fstat(params->s1fd, &bootstrapsb) == -1) { 154 warn("Examining `%s'", params->stage1); 155 goto done; 156 } 157 if (!S_ISREG(bootstrapsb.st_mode)) { 158 warnx("`%s' must be a regular file", params->stage1); 159 goto done; 160 } 161 162 memset(&bb, 0, SPARC64_BOOT_BLOCK_MAX_SIZE); 163 rv = read(params->s1fd, &bb, sizeof bb); 164 if (rv == -1) { 165 warn("Reading `%s'", params->stage1); 166 goto done; 167 } 168 169 if (params->flags & IB_STARTBLOCK) 170 startblock = params->startblock; 171 else 172 startblock = SPARC64_BOOT_BLOCK_OFFSET / 173 SPARC64_BOOT_BLOCK_BLOCKSIZE; 174 175 if (params->flags & IB_VERBOSE) { 176 printf("Bootstrap start sector: %#x\n", startblock); 177 printf("Bootstrap byte count: %#x\n", (unsigned)rv); 178 printf("%sriting bootstrap\n", 179 (params->flags & IB_NOWRITE) ? "Not w" : "W"); 180 } 181 if (params->flags & IB_NOWRITE) { 182 retval = 1; 183 goto done; 184 } 185 186 rv = pwrite(params->fsfd, &bb, SPARC64_BOOT_BLOCK_MAX_SIZE, 187 startblock * SPARC64_BOOT_BLOCK_BLOCKSIZE); 188 if (rv == -1) { 189 warn("Writing `%s'", params->filesystem); 190 goto done; 191 } else if (rv != SPARC64_BOOT_BLOCK_MAX_SIZE) { 192 warnx("Writing `%s': short write", params->filesystem); 193 goto done; 194 } else 195 retval = 1; 196 197 done: 198 return (retval); 199 } 200
Indexes created Wed Oct 01 19:09:53 GMT 2025