1 /*- 2 * Copyright (c) 2012 Department of Software Engineering, 3 * University of Szeged, Hungary 4 * Copyright (c) 2012 Tamas Toth <ttoth (at) inf.u-szeged.hu> 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by the Department of Software Engineering, University of Szeged, Hungary 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #endif 35 36 #include <sys/param.h> 37 #include <sys/stat.h> 38 39 #include <assert.h> 40 #include <fcntl.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <zlib.h> 45 #include <util.h> 46 #include <unistd.h> 47 48 #include "makefs.h" 49 #include "chfs_makefs.h" 50 51 #include "media.h" 52 #include "ebh.h" 53 54 #include "chfs/chfs_mkfs.h" 55 56 static uint32_t img_ofs = 0; 57 static uint64_t version = 0; 58 static uint64_t max_serial = 0; 59 static int lebnumber = 0; 60 61 static const unsigned char ffbuf[16] = { 62 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 63 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 64 }; 65 66 static void 67 buf_write(fsinfo_t *fsopts, const void *buf, size_t len) 68 { 69 ssize_t retval; 70 const char *charbuf = buf; 71 72 while (len > 0) { 73 retval = write(fsopts->fd, charbuf, len); 74 75 if (retval == -1) { 76 err(EXIT_FAILURE, "ERROR while writing"); 77 } 78 79 len -= retval; 80 charbuf += retval; 81 img_ofs += retval; 82 } 83 } 84 85 void 86 padblock(fsinfo_t *fsopts) 87 { 88 chfs_opt_t *chfs_opts = fsopts->fs_specific; 89 while (img_ofs % chfs_opts->eraseblock) { 90 buf_write(fsopts, ffbuf, MIN(sizeof(ffbuf), 91 chfs_opts->eraseblock - (img_ofs % chfs_opts->eraseblock))); 92 } 93 } 94 95 static void 96 padword(fsinfo_t *fsopts) 97 { 98 if (img_ofs % 4) { 99 buf_write(fsopts, ffbuf, 4 - img_ofs % 4); 100 } 101 } 102 103 static void 104 pad_block_if_less_than(fsinfo_t *fsopts, int req) 105 { 106 chfs_opt_t *chfs_opts = fsopts->fs_specific; 107 if ((img_ofs % chfs_opts->eraseblock) + req > 108 (uint32_t)chfs_opts->eraseblock) { 109 padblock(fsopts); 110 write_eb_header(fsopts); 111 } 112 } 113 114 void 115 write_eb_header(fsinfo_t *fsopts) 116 { 117 chfs_opt_t *opts; 118 struct chfs_eb_hdr ebhdr; 119 char *buf; 120 121 opts = fsopts->fs_specific; 122 123 #define MINSIZE MAX(MAX(CHFS_EB_EC_HDR_SIZE, CHFS_EB_HDR_NOR_SIZE), \ 124 CHFS_EB_HDR_NAND_SIZE) 125 if ((uint32_t)opts->pagesize < MINSIZE) 126 errx(EXIT_FAILURE, "pagesize cannot be less than %zu", MINSIZE); 127 buf = emalloc(opts->pagesize); 128 129 ebhdr.ec_hdr.magic = htole32(CHFS_MAGIC_BITMASK); 130 ebhdr.ec_hdr.erase_cnt = htole32(1); 131 ebhdr.ec_hdr.crc_ec = htole32(crc32(0, 132 (uint8_t *)&ebhdr.ec_hdr + 8, 4)); 133 134 memcpy(buf, &ebhdr.ec_hdr, CHFS_EB_EC_HDR_SIZE); 135 memset(buf + CHFS_EB_EC_HDR_SIZE, 0xFF, 136 opts->pagesize - CHFS_EB_EC_HDR_SIZE); 137 138 buf_write(fsopts, buf, opts->pagesize); 139 140 memset(buf, 0xFF, opts->pagesize); 141 142 if (opts->mediatype == TYPE_NAND) { 143 ebhdr.u.nand_hdr.lid = htole32(lebnumber++); 144 ebhdr.u.nand_hdr.serial = htole64(++(max_serial)); 145 ebhdr.u.nand_hdr.crc = htole32(crc32(0, 146 (uint8_t *)&ebhdr.u.nand_hdr + 4, 147 CHFS_EB_HDR_NAND_SIZE - 4)); 148 memcpy(buf, &ebhdr.u.nand_hdr, CHFS_EB_HDR_NAND_SIZE); 149 } else { 150 ebhdr.u.nor_hdr.lid = htole32(lebnumber++); 151 ebhdr.u.nor_hdr.crc = htole32(crc32(0, 152 (uint8_t *)&ebhdr.u.nor_hdr + 4, 153 CHFS_EB_HDR_NOR_SIZE - 4)); 154 memcpy(buf, &ebhdr.u.nor_hdr, CHFS_EB_HDR_NOR_SIZE); 155 } 156 157 buf_write(fsopts, buf, opts->pagesize); 158 free(buf); 159 } 160 161 void 162 write_vnode(fsinfo_t *fsopts, fsnode *node) 163 { 164 struct chfs_flash_vnode fvnode; 165 memset(&fvnode, 0, sizeof(fvnode)); 166 167 fvnode.magic = htole16(CHFS_FS_MAGIC_BITMASK); 168 fvnode.type = htole16(CHFS_NODETYPE_VNODE); 169 fvnode.length = htole32(CHFS_PAD(sizeof(fvnode))); 170 fvnode.hdr_crc = htole32(crc32(0, (uint8_t *)&fvnode, 171 CHFS_NODE_HDR_SIZE - 4)); 172 fvnode.vno = htole64(node->inode->ino); 173 fvnode.version = htole64(version++); 174 fvnode.mode = htole32(node->inode->st.st_mode); 175 fvnode.dn_size = htole32(node->inode->st.st_size); 176 fvnode.atime = htole32(node->inode->st.st_atime); 177 fvnode.ctime = htole32(node->inode->st.st_ctime); 178 fvnode.mtime = htole32(node->inode->st.st_mtime); 179 fvnode.gid = htole32(node->inode->st.st_uid); 180 fvnode.uid = htole32(node->inode->st.st_gid); 181 fvnode.node_crc = htole32(crc32(0, (uint8_t *)&fvnode, 182 sizeof(fvnode) - 4)); 183 184 pad_block_if_less_than(fsopts, sizeof(fvnode)); 185 buf_write(fsopts, &fvnode, sizeof(fvnode)); 186 padword(fsopts); 187 } 188 189 void 190 write_dirent(fsinfo_t *fsopts, fsnode *node) 191 { 192 struct chfs_flash_dirent_node fdirent; 193 char *name; 194 195 name = emalloc(strlen(node->name)); 196 memcpy(name, node->name, strlen(node->name)); 197 198 memset(&fdirent, 0, sizeof(fdirent)); 199 fdirent.magic = htole16(CHFS_FS_MAGIC_BITMASK); 200 fdirent.type = htole16(CHFS_NODETYPE_DIRENT); 201 fdirent.length = htole32(CHFS_PAD(sizeof(fdirent) + strlen(name))); 202 fdirent.hdr_crc = htole32(crc32(0, (uint8_t *)&fdirent, 203 CHFS_NODE_HDR_SIZE - 4)); 204 fdirent.vno = htole64(node->inode->ino); 205 if (node->parent != NULL) { 206 fdirent.pvno = htole64(node->parent->inode->ino); 207 } else { 208 fdirent.pvno = htole64(node->inode->ino); 209 } 210 211 fdirent.version = htole64(version++); 212 fdirent.mctime = 0; 213 fdirent.nsize = htole32(strlen(name)); 214 fdirent.dtype = htole32(IFTOCHT(node->type & S_IFMT)); 215 fdirent.name_crc = htole32(crc32(0, (uint8_t *)name, fdirent.nsize)); 216 fdirent.node_crc = htole32(crc32(0, (uint8_t *)&fdirent, 217 sizeof(fdirent) - 4)); 218 219 pad_block_if_less_than(fsopts, sizeof(fdirent) + fdirent.nsize); 220 buf_write(fsopts, &fdirent, sizeof(fdirent)); 221 buf_write(fsopts, name, fdirent.nsize); 222 padword(fsopts); 223 } 224 225 void 226 write_file(fsinfo_t *fsopts, fsnode *node, const char *dir) 227 { 228 int fd; 229 ssize_t len; 230 char *name = node->name; 231 chfs_opt_t *opts; 232 unsigned char *buf; 233 uint32_t fileofs = 0; 234 235 opts = fsopts->fs_specific; 236 buf = emalloc(opts->pagesize); 237 if (node->type == S_IFREG || node->type == S_IFSOCK) { 238 char *longname; 239 if (asprintf(&longname, "%s/%s", dir, name) == 1) 240 goto out; 241 242 fd = open(longname, O_RDONLY, 0444); 243 if (fd == -1) 244 err(EXIT_FAILURE, "Cannot open `%s'", longname); 245 246 while ((len = read(fd, buf, opts->pagesize))) { 247 if (len < 0) { 248 warn("ERROR while reading %s", longname); 249 free(longname); 250 free(buf); 251 close(fd); 252 return; 253 } 254 255 write_data(fsopts, node, buf, len, fileofs); 256 fileofs += len; 257 } 258 free(longname); 259 close(fd); 260 } else if (node->type == S_IFLNK) { 261 len = strlen(node->symlink); 262 memcpy(buf, node->symlink, len); 263 write_data(fsopts, node, buf, len, 0); 264 } else if (node->type == S_IFCHR || node->type == S_IFBLK || 265 node->type == S_IFIFO) { 266 len = sizeof(dev_t); 267 memcpy(buf, &(node->inode->st.st_rdev), len); 268 write_data(fsopts, node, buf, len, 0); 269 } 270 271 free(buf); 272 return; 273 out: 274 err(EXIT_FAILURE, "Memory allocation failed"); 275 } 276 277 void 278 write_data(fsinfo_t *fsopts, fsnode *node, unsigned char *buf, size_t len, 279 uint32_t ofs) 280 { 281 struct chfs_flash_data_node fdata; 282 283 memset(&fdata, 0, sizeof(fdata)); 284 if (len == 0) { 285 return; 286 } 287 288 pad_block_if_less_than(fsopts, sizeof(fdata) + len); 289 290 fdata.magic = htole16(CHFS_FS_MAGIC_BITMASK); 291 fdata.type = htole16(CHFS_NODETYPE_DATA); 292 fdata.length = htole32(CHFS_PAD(sizeof(fdata) + len)); 293 fdata.hdr_crc = htole32(crc32(0, (uint8_t *)&fdata, 294 CHFS_NODE_HDR_SIZE - 4)); 295 fdata.vno = htole64(node->inode->ino); 296 fdata.data_length = htole32(len); 297 fdata.offset = htole32(ofs); 298 fdata.data_crc = htole32(crc32(0, (uint8_t *)buf, len)); 299 fdata.node_crc = htole32(crc32(0, 300 (uint8_t *)&fdata, sizeof(fdata) - 4)); 301 302 buf_write(fsopts, &fdata, sizeof(fdata)); 303 buf_write(fsopts, buf, len); 304 padword(fsopts); 305 } 306
Indexes created Sat Sep 20 22:09:52 GMT 2025