fileread_bfs.c revision 1.1.18.2
1 1.1.18.2 yamt /* $NetBSD: fileread_bfs.c,v 1.1.18.2 2006/06/21 14:51:21 yamt Exp $ */ 2 1.1.18.2 yamt 3 1.1.18.2 yamt /*- 4 1.1.18.2 yamt * Copyright (c) 2004, 2005 The NetBSD Foundation, Inc. 5 1.1.18.2 yamt * All rights reserved. 6 1.1.18.2 yamt * 7 1.1.18.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.1.18.2 yamt * by UCHIYAMA Yasushi. 9 1.1.18.2 yamt * 10 1.1.18.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.1.18.2 yamt * modification, are permitted provided that the following conditions 12 1.1.18.2 yamt * are met: 13 1.1.18.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.1.18.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.1.18.2 yamt * documentation and/or other materials provided with the distribution. 18 1.1.18.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.1.18.2 yamt * must display the following acknowledgement: 20 1.1.18.2 yamt * This product includes software developed by the NetBSD 21 1.1.18.2 yamt * Foundation, Inc. and its contributors. 22 1.1.18.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.18.2 yamt * contributors may be used to endorse or promote products derived 24 1.1.18.2 yamt * from this software without specific prior written permission. 25 1.1.18.2 yamt * 26 1.1.18.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.18.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.18.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.18.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.18.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.18.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.18.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.18.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.18.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.18.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.18.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.1.18.2 yamt */ 38 1.1.18.2 yamt 39 1.1.18.2 yamt #include <lib/libsa/stand.h> 40 1.1.18.2 yamt #include <lib/libkern/libkern.h> 41 1.1.18.2 yamt 42 1.1.18.2 yamt #include <sys/types.h> 43 1.1.18.2 yamt #include <sys/param.h> 44 1.1.18.2 yamt #include "bootxx.h" 45 1.1.18.2 yamt 46 1.1.18.2 yamt #include <machine/pdinfo.h> 47 1.1.18.2 yamt #include <machine/vtoc.h> 48 1.1.18.2 yamt #include <machine/bfs.h> 49 1.1.18.2 yamt #include <machine/sbd.h> 50 1.1.18.2 yamt 51 1.1.18.2 yamt int 52 1.1.18.2 yamt fileread(const char *fname, size_t *size) 53 1.1.18.2 yamt { 54 1.1.18.2 yamt struct pdinfo_sector *pdinfo = (void *)SDBOOT_PDINFOADDR; 55 1.1.18.2 yamt struct vtoc_sector *vtoc = (void *)SDBOOT_VTOCADDR; 56 1.1.18.2 yamt struct ux_partition *partition = vtoc->partition; 57 1.1.18.2 yamt struct bfs_inode *inode = (void *)SDBOOT_INODEADDR; 58 1.1.18.2 yamt struct bfs_dirent *dirent = (void *)SDBOOT_DIRENTADDR; 59 1.1.18.2 yamt int i, n, err, block_size, bfs_sector; 60 1.1.18.2 yamt 61 1.1.18.2 yamt if (pdinfo->magic != PDINFO_MAGIC) 62 1.1.18.2 yamt return BERR_PDINFO; 63 1.1.18.2 yamt block_size = pdinfo->geometory.bytes_per_sector; 64 1.1.18.2 yamt 65 1.1.18.2 yamt #if 0 66 1.1.18.2 yamt { 67 1.1.18.2 yamt char msg[] = "00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f"; 68 1.1.18.2 yamt const char hex[] = "0123456789ABCDEF"; 69 1.1.18.2 yamt u_int v; 70 1.1.18.2 yamt uint8_t *p = (void *)vtoc; 71 1.1.18.2 yamt 72 1.1.18.2 yamt err = dk_read(pdinfo->logical_sector + VTOC_SECTOR, 1, vtoc); 73 1.1.18.2 yamt for (n = 0; n < 16; n++) { 74 1.1.18.2 yamt for (i = 0; i < 16; i++) { 75 1.1.18.2 yamt v = (*p >> 4) & 0x0f; 76 1.1.18.2 yamt msg[i*3] = hex[v]; 77 1.1.18.2 yamt v = *p & 0x0f; 78 1.1.18.2 yamt msg[i*3+1] = hex[v]; 79 1.1.18.2 yamt p++; 80 1.1.18.2 yamt } 81 1.1.18.2 yamt for (i = 0; msg[i] != 0; i++) 82 1.1.18.2 yamt ROM_PUTC(32 + i * 12, 0 + n * 24, msg[i]); 83 1.1.18.2 yamt ROM_PUTC(0, 0 + n * 24, '\r'); 84 1.1.18.2 yamt ROM_PUTC(0, 0 + n * 24, '\n'); 85 1.1.18.2 yamt } 86 1.1.18.2 yamt } 87 1.1.18.2 yamt #endif 88 1.1.18.2 yamt /* Read VTOC */ 89 1.1.18.2 yamt err = dk_read(pdinfo->logical_sector + VTOC_SECTOR, 1, vtoc); 90 1.1.18.2 yamt if ((err & 0x7f) != 0) 91 1.1.18.2 yamt return BERR_RDVTOC; 92 1.1.18.2 yamt 93 1.1.18.2 yamt if (vtoc->magic != VTOC_MAGIC) 94 1.1.18.2 yamt return BERR_VTOC; 95 1.1.18.2 yamt 96 1.1.18.2 yamt /* Find BFS */ 97 1.1.18.2 yamt for (i = 0; i < VTOC_MAXPARTITIONS; i++, partition++) 98 1.1.18.2 yamt if (partition->tag == VTOC_TAG_STAND) 99 1.1.18.2 yamt break; 100 1.1.18.2 yamt 101 1.1.18.2 yamt if (i == VTOC_MAXPARTITIONS) 102 1.1.18.2 yamt return BERR_NOBFS; 103 1.1.18.2 yamt bfs_sector = pdinfo->logical_sector + partition->start_sector; 104 1.1.18.2 yamt 105 1.1.18.2 yamt /* Read inode */ 106 1.1.18.2 yamt err = dk_read(bfs_sector + 1/* skip super block */, 1, inode); 107 1.1.18.2 yamt if ((err & 0x7f) != 0) 108 1.1.18.2 yamt return BERR_RDINODE; 109 1.1.18.2 yamt 110 1.1.18.2 yamt if (inode->number != BFS_ROOT_INODE) 111 1.1.18.2 yamt return BERR_NOROOT; 112 1.1.18.2 yamt 113 1.1.18.2 yamt /* Read root directory */ 114 1.1.18.2 yamt n = inode->eof_offset_byte - inode->start_sector * 512 + 1; 115 1.1.18.2 yamt 116 1.1.18.2 yamt err = dk_read(bfs_sector + inode->start_sector, 1, dirent); 117 1.1.18.2 yamt if ((err & 0x7f) != 0) 118 1.1.18.2 yamt return BERR_RDDIRENT; 119 1.1.18.2 yamt 120 1.1.18.2 yamt n /= sizeof(struct bfs_dirent); 121 1.1.18.2 yamt DPRINTF("%d files.\n", n); 122 1.1.18.2 yamt for (i = 0; i < n; i++, dirent++) 123 1.1.18.2 yamt if (strcmp(dirent->name, fname) == 0) 124 1.1.18.2 yamt break; 125 1.1.18.2 yamt 126 1.1.18.2 yamt if (i == n) 127 1.1.18.2 yamt return BERR_NOFILE; 128 1.1.18.2 yamt 129 1.1.18.2 yamt /* Read file */ 130 1.1.18.2 yamt DPRINTF("%s (%d)\n", dirent->name, dirent->inode); 131 1.1.18.2 yamt inode = &inode[dirent->inode - BFS_ROOT_INODE]; 132 1.1.18.2 yamt 133 1.1.18.2 yamt err = dk_read(bfs_sector + inode->start_sector, 134 1.1.18.2 yamt inode->end_sector - inode->start_sector + 1, 135 1.1.18.2 yamt (void *)SDBOOT_SCRATCHADDR); 136 1.1.18.2 yamt 137 1.1.18.2 yamt if ((err & 0x7f) != 0) 138 1.1.18.2 yamt return BERR_RDFILE; 139 1.1.18.2 yamt 140 1.1.18.2 yamt *size = inode->eof_offset_byte - inode->start_sector * 512 + 1; 141 1.1.18.2 yamt DPRINTF("read %dbyte\n", *size); 142 1.1.18.2 yamt 143 1.1.18.2 yamt return 0; 144 1.1.18.2 yamt } 145
Indexes created Wed Oct 22 00:09:40 GMT 2025