wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | ------------------------------------------------------------------------- |
| 3 | * Filename: jffs2.c |
| 4 | * Version: $Id: jffs2_1pass.c,v 1.7 2002/01/25 01:56:47 nyet Exp $ |
| 5 | * Copyright: Copyright (C) 2001, Russ Dill |
| 6 | * Author: Russ Dill <Russ.Dill@asu.edu> |
| 7 | * Description: Module to load kernel from jffs2 |
| 8 | *-----------------------------------------------------------------------*/ |
| 9 | /* |
| 10 | * some portions of this code are taken from jffs2, and as such, the |
| 11 | * following copyright notice is included. |
| 12 | * |
| 13 | * JFFS2 -- Journalling Flash File System, Version 2. |
| 14 | * |
| 15 | * Copyright (C) 2001 Red Hat, Inc. |
| 16 | * |
| 17 | * Created by David Woodhouse <dwmw2@cambridge.redhat.com> |
| 18 | * |
| 19 | * The original JFFS, from which the design for JFFS2 was derived, |
| 20 | * was designed and implemented by Axis Communications AB. |
| 21 | * |
| 22 | * The contents of this file are subject to the Red Hat eCos Public |
| 23 | * License Version 1.1 (the "Licence"); you may not use this file |
| 24 | * except in compliance with the Licence. You may obtain a copy of |
| 25 | * the Licence at http://www.redhat.com/ |
| 26 | * |
| 27 | * Software distributed under the Licence is distributed on an "AS IS" |
| 28 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. |
| 29 | * See the Licence for the specific language governing rights and |
| 30 | * limitations under the Licence. |
| 31 | * |
| 32 | * The Original Code is JFFS2 - Journalling Flash File System, version 2 |
| 33 | * |
| 34 | * Alternatively, the contents of this file may be used under the |
| 35 | * terms of the GNU General Public License version 2 (the "GPL"), in |
| 36 | * which case the provisions of the GPL are applicable instead of the |
| 37 | * above. If you wish to allow the use of your version of this file |
| 38 | * only under the terms of the GPL and not to allow others to use your |
| 39 | * version of this file under the RHEPL, indicate your decision by |
| 40 | * deleting the provisions above and replace them with the notice and |
| 41 | * other provisions required by the GPL. If you do not delete the |
| 42 | * provisions above, a recipient may use your version of this file |
| 43 | * under either the RHEPL or the GPL. |
| 44 | * |
| 45 | * $Id: jffs2_1pass.c,v 1.7 2002/01/25 01:56:47 nyet Exp $ |
| 46 | * |
| 47 | */ |
| 48 | |
| 49 | /* Ok, so anyone who knows the jffs2 code will probably want to get a papar |
| 50 | * bag to throw up into before reading this code. I looked through the jffs2 |
| 51 | * code, the caching scheme is very elegant. I tried to keep the version |
| 52 | * for a bootloader as small and simple as possible. Instead of worring about |
| 53 | * unneccesary data copies, node scans, etc, I just optimized for the known |
| 54 | * common case, a kernel, which looks like: |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 55 | * (1) most pages are 4096 bytes |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 56 | * (2) version numbers are somewhat sorted in acsending order |
| 57 | * (3) multiple compressed blocks making up one page is uncommon |
| 58 | * |
| 59 | * So I create a linked list of decending version numbers (insertions at the |
| 60 | * head), and then for each page, walk down the list, until a matching page |
| 61 | * with 4096 bytes is found, and then decompress the watching pages in |
| 62 | * reverse order. |
| 63 | * |
| 64 | */ |
| 65 | |
| 66 | /* |
| 67 | * Adapted by Nye Liu <nyet@zumanetworks.com> and |
| 68 | * Rex Feany <rfeany@zumanetworks.com> |
| 69 | * on Jan/2002 for U-Boot. |
| 70 | * |
| 71 | * Clipped out all the non-1pass functions, cleaned up warnings, |
| 72 | * wrappers, etc. No major changes to the code. |
| 73 | * Please, he really means it when he said have a paper bag |
| 74 | * handy. We needed it ;). |
| 75 | * |
| 76 | */ |
| 77 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 78 | /* |
| 79 | * Bugfixing by Kai-Uwe Bloem <kai-uwe.bloem@auerswald.de>, (C) Mar/2003 |
| 80 | * |
| 81 | * - overhaul of the memory management. Removed much of the "paper-bagging" |
| 82 | * in that part of the code, fixed several bugs, now frees memory when |
| 83 | * partition is changed. |
| 84 | * It's still ugly :-( |
| 85 | * - fixed a bug in jffs2_1pass_read_inode where the file length calculation |
| 86 | * was incorrect. Removed a bit of the paper-bagging as well. |
| 87 | * - removed double crc calculation for fragment headers in jffs2_private.h |
| 88 | * for speedup. |
| 89 | * - scan_empty rewritten in a more "standard" manner (non-paperbag, that is). |
| 90 | * - spinning wheel now spins depending on how much memory has been scanned |
| 91 | * - lots of small changes all over the place to "improve" readability. |
| 92 | * - implemented fragment sorting to ensure that the newest data is copied |
| 93 | * if there are multiple copies of fragments for a certain file offset. |
| 94 | * |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 95 | * The fragment sorting feature must be enabled by CONFIG_SYS_JFFS2_SORT_FRAGMENTS. |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 96 | * Sorting is done while adding fragments to the lists, which is more or less a |
| 97 | * bubble sort. This takes a lot of time, and is most probably not an issue if |
| 98 | * the boot filesystem is always mounted readonly. |
| 99 | * |
| 100 | * You should define it if the boot filesystem is mounted writable, and updates |
| 101 | * to the boot files are done by copying files to that filesystem. |
| 102 | * |
| 103 | * |
| 104 | * There's a big issue left: endianess is completely ignored in this code. Duh! |
| 105 | * |
| 106 | * |
| 107 | * You still should have paper bags at hand :-(. The code lacks more or less |
| 108 | * any comment, and is still arcane and difficult to read in places. As this |
wdenk | ae65f50 | 2004-01-03 21:24:46 +0000 | [diff] [blame] | 109 | * might be incompatible with any new code from the jffs2 maintainers anyway, |
| 110 | * it should probably be dumped and replaced by something like jffs2reader! |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 111 | */ |
| 112 | |
| 113 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 114 | #include <common.h> |
| 115 | #include <config.h> |
| 116 | #include <malloc.h> |
Tom Rini | 3cd84d6 | 2013-12-05 14:48:38 -0500 | [diff] [blame] | 117 | #include <div64.h> |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 118 | #include <linux/stat.h> |
| 119 | #include <linux/time.h> |
Stuart Wood | 471a2f0 | 2008-06-02 16:40:08 -0400 | [diff] [blame] | 120 | #include <watchdog.h> |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 121 | #include <jffs2/jffs2.h> |
| 122 | #include <jffs2/jffs2_1pass.h> |
Mike Frysinger | 11d1a09 | 2012-04-09 13:39:55 +0000 | [diff] [blame] | 123 | #include <linux/compat.h> |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 124 | #include <asm/errno.h> |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 125 | |
| 126 | #include "jffs2_private.h" |
| 127 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 128 | |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 129 | #define NODE_CHUNK 1024 /* size of memory allocation chunk in b_nodes */ |
| 130 | #define SPIN_BLKSIZE 18 /* spin after having scanned 1<<BLKSIZE bytes */ |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 131 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 132 | /* Debugging switches */ |
| 133 | #undef DEBUG_DIRENTS /* print directory entry list after scan */ |
| 134 | #undef DEBUG_FRAGMENTS /* print fragment list after scan */ |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 135 | #undef DEBUG /* enable debugging messages */ |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 136 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 137 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 138 | #ifdef DEBUG |
| 139 | # define DEBUGF(fmt,args...) printf(fmt ,##args) |
| 140 | #else |
| 141 | # define DEBUGF(fmt,args...) |
| 142 | #endif |
| 143 | |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 144 | #include "summary.h" |
| 145 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 146 | /* keeps pointer to currentlu processed partition */ |
| 147 | static struct part_info *current_part; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 148 | |
Wolfgang Denk | 15888b4 | 2007-07-05 17:56:27 +0200 | [diff] [blame] | 149 | #if (defined(CONFIG_JFFS2_NAND) && \ |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 150 | defined(CONFIG_CMD_NAND) ) |
Bartlomiej Sieka | 582f1a3 | 2006-03-05 18:57:33 +0100 | [diff] [blame] | 151 | #include <nand.h> |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 152 | /* |
| 153 | * Support for jffs2 on top of NAND-flash |
| 154 | * |
| 155 | * NAND memory isn't mapped in processor's address space, |
| 156 | * so data should be fetched from flash before |
| 157 | * being processed. This is exactly what functions declared |
| 158 | * here do. |
| 159 | * |
| 160 | */ |
| 161 | |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 162 | #define NAND_PAGE_SIZE 512 |
| 163 | #define NAND_PAGE_SHIFT 9 |
| 164 | #define NAND_PAGE_MASK (~(NAND_PAGE_SIZE-1)) |
| 165 | |
| 166 | #ifndef NAND_CACHE_PAGES |
| 167 | #define NAND_CACHE_PAGES 16 |
| 168 | #endif |
| 169 | #define NAND_CACHE_SIZE (NAND_CACHE_PAGES*NAND_PAGE_SIZE) |
| 170 | |
| 171 | static u8* nand_cache = NULL; |
| 172 | static u32 nand_cache_off = (u32)-1; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 173 | |
| 174 | static int read_nand_cached(u32 off, u32 size, u_char *buf) |
| 175 | { |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 176 | struct mtdids *id = current_part->dev->id; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 177 | u32 bytes_read = 0; |
Marian Balakowicz | 6a07675 | 2006-04-08 19:08:06 +0200 | [diff] [blame] | 178 | size_t retlen; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 179 | int cpy_bytes; |
| 180 | |
| 181 | while (bytes_read < size) { |
| 182 | if ((off + bytes_read < nand_cache_off) || |
| 183 | (off + bytes_read >= nand_cache_off+NAND_CACHE_SIZE)) { |
| 184 | nand_cache_off = (off + bytes_read) & NAND_PAGE_MASK; |
| 185 | if (!nand_cache) { |
| 186 | /* This memory never gets freed but 'cause |
| 187 | it's a bootloader, nobody cares */ |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 188 | nand_cache = malloc(NAND_CACHE_SIZE); |
| 189 | if (!nand_cache) { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 190 | printf("read_nand_cached: can't alloc cache size %d bytes\n", |
| 191 | NAND_CACHE_SIZE); |
| 192 | return -1; |
| 193 | } |
| 194 | } |
Bartlomiej Sieka | 582f1a3 | 2006-03-05 18:57:33 +0100 | [diff] [blame] | 195 | |
| 196 | retlen = NAND_CACHE_SIZE; |
| 197 | if (nand_read(&nand_info[id->num], nand_cache_off, |
Marian Balakowicz | 6a07675 | 2006-04-08 19:08:06 +0200 | [diff] [blame] | 198 | &retlen, nand_cache) != 0 || |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 199 | retlen != NAND_CACHE_SIZE) { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 200 | printf("read_nand_cached: error reading nand off %#x size %d bytes\n", |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 201 | nand_cache_off, NAND_CACHE_SIZE); |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 202 | return -1; |
| 203 | } |
| 204 | } |
| 205 | cpy_bytes = nand_cache_off + NAND_CACHE_SIZE - (off + bytes_read); |
| 206 | if (cpy_bytes > size - bytes_read) |
| 207 | cpy_bytes = size - bytes_read; |
| 208 | memcpy(buf + bytes_read, |
| 209 | nand_cache + off + bytes_read - nand_cache_off, |
| 210 | cpy_bytes); |
| 211 | bytes_read += cpy_bytes; |
| 212 | } |
| 213 | return bytes_read; |
| 214 | } |
| 215 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 216 | static void *get_fl_mem_nand(u32 off, u32 size, void *ext_buf) |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 217 | { |
| 218 | u_char *buf = ext_buf ? (u_char*)ext_buf : (u_char*)malloc(size); |
| 219 | |
| 220 | if (NULL == buf) { |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 221 | printf("get_fl_mem_nand: can't alloc %d bytes\n", size); |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 222 | return NULL; |
| 223 | } |
| 224 | if (read_nand_cached(off, size, buf) < 0) { |
wdenk | f248ebc | 2004-05-05 19:44:41 +0000 | [diff] [blame] | 225 | if (!ext_buf) |
| 226 | free(buf); |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 227 | return NULL; |
| 228 | } |
| 229 | |
| 230 | return buf; |
| 231 | } |
| 232 | |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 233 | static void *get_node_mem_nand(u32 off, void *ext_buf) |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 234 | { |
| 235 | struct jffs2_unknown_node node; |
| 236 | void *ret = NULL; |
| 237 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 238 | if (NULL == get_fl_mem_nand(off, sizeof(node), &node)) |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 239 | return NULL; |
| 240 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 241 | if (!(ret = get_fl_mem_nand(off, node.magic == |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 242 | JFFS2_MAGIC_BITMASK ? node.totlen : sizeof(node), |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 243 | ext_buf))) { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 244 | printf("off = %#x magic %#x type %#x node.totlen = %d\n", |
| 245 | off, node.magic, node.nodetype, node.totlen); |
| 246 | } |
| 247 | return ret; |
| 248 | } |
| 249 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 250 | static void put_fl_mem_nand(void *buf) |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 251 | { |
| 252 | free(buf); |
| 253 | } |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 254 | #endif |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 255 | |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 256 | #if defined(CONFIG_CMD_ONENAND) |
| 257 | |
| 258 | #include <linux/mtd/mtd.h> |
| 259 | #include <linux/mtd/onenand.h> |
| 260 | #include <onenand_uboot.h> |
| 261 | |
| 262 | #define ONENAND_PAGE_SIZE 2048 |
| 263 | #define ONENAND_PAGE_SHIFT 11 |
| 264 | #define ONENAND_PAGE_MASK (~(ONENAND_PAGE_SIZE-1)) |
| 265 | |
| 266 | #ifndef ONENAND_CACHE_PAGES |
| 267 | #define ONENAND_CACHE_PAGES 4 |
| 268 | #endif |
| 269 | #define ONENAND_CACHE_SIZE (ONENAND_CACHE_PAGES*ONENAND_PAGE_SIZE) |
| 270 | |
| 271 | static u8* onenand_cache; |
| 272 | static u32 onenand_cache_off = (u32)-1; |
| 273 | |
| 274 | static int read_onenand_cached(u32 off, u32 size, u_char *buf) |
| 275 | { |
| 276 | u32 bytes_read = 0; |
| 277 | size_t retlen; |
| 278 | int cpy_bytes; |
| 279 | |
| 280 | while (bytes_read < size) { |
| 281 | if ((off + bytes_read < onenand_cache_off) || |
| 282 | (off + bytes_read >= onenand_cache_off + ONENAND_CACHE_SIZE)) { |
| 283 | onenand_cache_off = (off + bytes_read) & ONENAND_PAGE_MASK; |
| 284 | if (!onenand_cache) { |
| 285 | /* This memory never gets freed but 'cause |
| 286 | it's a bootloader, nobody cares */ |
| 287 | onenand_cache = malloc(ONENAND_CACHE_SIZE); |
| 288 | if (!onenand_cache) { |
| 289 | printf("read_onenand_cached: can't alloc cache size %d bytes\n", |
| 290 | ONENAND_CACHE_SIZE); |
| 291 | return -1; |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | retlen = ONENAND_CACHE_SIZE; |
| 296 | if (onenand_read(&onenand_mtd, onenand_cache_off, retlen, |
| 297 | &retlen, onenand_cache) != 0 || |
| 298 | retlen != ONENAND_CACHE_SIZE) { |
| 299 | printf("read_onenand_cached: error reading nand off %#x size %d bytes\n", |
| 300 | onenand_cache_off, ONENAND_CACHE_SIZE); |
| 301 | return -1; |
| 302 | } |
| 303 | } |
| 304 | cpy_bytes = onenand_cache_off + ONENAND_CACHE_SIZE - (off + bytes_read); |
| 305 | if (cpy_bytes > size - bytes_read) |
| 306 | cpy_bytes = size - bytes_read; |
| 307 | memcpy(buf + bytes_read, |
| 308 | onenand_cache + off + bytes_read - onenand_cache_off, |
| 309 | cpy_bytes); |
| 310 | bytes_read += cpy_bytes; |
| 311 | } |
| 312 | return bytes_read; |
| 313 | } |
| 314 | |
| 315 | static void *get_fl_mem_onenand(u32 off, u32 size, void *ext_buf) |
| 316 | { |
| 317 | u_char *buf = ext_buf ? (u_char *)ext_buf : (u_char *)malloc(size); |
| 318 | |
| 319 | if (NULL == buf) { |
| 320 | printf("get_fl_mem_onenand: can't alloc %d bytes\n", size); |
| 321 | return NULL; |
| 322 | } |
| 323 | if (read_onenand_cached(off, size, buf) < 0) { |
| 324 | if (!ext_buf) |
| 325 | free(buf); |
| 326 | return NULL; |
| 327 | } |
| 328 | |
| 329 | return buf; |
| 330 | } |
| 331 | |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 332 | static void *get_node_mem_onenand(u32 off, void *ext_buf) |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 333 | { |
| 334 | struct jffs2_unknown_node node; |
| 335 | void *ret = NULL; |
| 336 | |
| 337 | if (NULL == get_fl_mem_onenand(off, sizeof(node), &node)) |
| 338 | return NULL; |
| 339 | |
| 340 | ret = get_fl_mem_onenand(off, node.magic == |
| 341 | JFFS2_MAGIC_BITMASK ? node.totlen : sizeof(node), |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 342 | ext_buf); |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 343 | if (!ret) { |
| 344 | printf("off = %#x magic %#x type %#x node.totlen = %d\n", |
| 345 | off, node.magic, node.nodetype, node.totlen); |
| 346 | } |
| 347 | return ret; |
| 348 | } |
| 349 | |
| 350 | |
| 351 | static void put_fl_mem_onenand(void *buf) |
| 352 | { |
| 353 | free(buf); |
| 354 | } |
| 355 | #endif |
| 356 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 357 | |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 358 | #if defined(CONFIG_CMD_FLASH) |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 359 | /* |
| 360 | * Support for jffs2 on top of NOR-flash |
| 361 | * |
| 362 | * NOR flash memory is mapped in processor's address space, |
| 363 | * just return address. |
| 364 | */ |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 365 | static inline void *get_fl_mem_nor(u32 off, u32 size, void *ext_buf) |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 366 | { |
| 367 | u32 addr = off; |
| 368 | struct mtdids *id = current_part->dev->id; |
| 369 | |
Marian Balakowicz | 513b4a1 | 2005-10-11 19:09:42 +0200 | [diff] [blame] | 370 | extern flash_info_t flash_info[]; |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 371 | flash_info_t *flash = &flash_info[id->num]; |
| 372 | |
| 373 | addr += flash->start[0]; |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 374 | if (ext_buf) { |
| 375 | memcpy(ext_buf, (void *)addr, size); |
| 376 | return ext_buf; |
| 377 | } |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 378 | return (void*)addr; |
| 379 | } |
| 380 | |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 381 | static inline void *get_node_mem_nor(u32 off, void *ext_buf) |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 382 | { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 383 | struct jffs2_unknown_node *pNode; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 384 | |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 385 | /* pNode will point directly to flash - don't provide external buffer |
| 386 | and don't care about size */ |
| 387 | pNode = get_fl_mem_nor(off, 0, NULL); |
| 388 | return (void *)get_fl_mem_nor(off, pNode->magic == JFFS2_MAGIC_BITMASK ? |
| 389 | pNode->totlen : sizeof(*pNode), ext_buf); |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 390 | } |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 391 | #endif |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 392 | |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 393 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 394 | /* |
Wolfgang Denk | eb95c85 | 2005-08-10 15:14:32 +0200 | [diff] [blame] | 395 | * Generic jffs2 raw memory and node read routines. |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 396 | * |
| 397 | */ |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 398 | static inline void *get_fl_mem(u32 off, u32 size, void *ext_buf) |
| 399 | { |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 400 | struct mtdids *id = current_part->dev->id; |
Wolfgang Denk | eb95c85 | 2005-08-10 15:14:32 +0200 | [diff] [blame] | 401 | |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 402 | switch(id->type) { |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 403 | #if defined(CONFIG_CMD_FLASH) |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 404 | case MTD_DEV_TYPE_NOR: |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 405 | return get_fl_mem_nor(off, size, ext_buf); |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 406 | break; |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 407 | #endif |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 408 | #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND) |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 409 | case MTD_DEV_TYPE_NAND: |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 410 | return get_fl_mem_nand(off, size, ext_buf); |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 411 | break; |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 412 | #endif |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 413 | #if defined(CONFIG_CMD_ONENAND) |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 414 | case MTD_DEV_TYPE_ONENAND: |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 415 | return get_fl_mem_onenand(off, size, ext_buf); |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 416 | break; |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 417 | #endif |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 418 | default: |
| 419 | printf("get_fl_mem: unknown device type, " \ |
| 420 | "using raw offset!\n"); |
| 421 | } |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 422 | return (void*)off; |
| 423 | } |
| 424 | |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 425 | static inline void *get_node_mem(u32 off, void *ext_buf) |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 426 | { |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 427 | struct mtdids *id = current_part->dev->id; |
Wolfgang Denk | eb95c85 | 2005-08-10 15:14:32 +0200 | [diff] [blame] | 428 | |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 429 | switch(id->type) { |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 430 | #if defined(CONFIG_CMD_FLASH) |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 431 | case MTD_DEV_TYPE_NOR: |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 432 | return get_node_mem_nor(off, ext_buf); |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 433 | break; |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 434 | #endif |
Wolfgang Denk | 15888b4 | 2007-07-05 17:56:27 +0200 | [diff] [blame] | 435 | #if defined(CONFIG_JFFS2_NAND) && \ |
Jon Loeliger | 80eb47c | 2007-07-09 17:56:50 -0500 | [diff] [blame] | 436 | defined(CONFIG_CMD_NAND) |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 437 | case MTD_DEV_TYPE_NAND: |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 438 | return get_node_mem_nand(off, ext_buf); |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 439 | break; |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 440 | #endif |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 441 | #if defined(CONFIG_CMD_ONENAND) |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 442 | case MTD_DEV_TYPE_ONENAND: |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 443 | return get_node_mem_onenand(off, ext_buf); |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 444 | break; |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 445 | #endif |
Heiko Schocher | d64a813 | 2010-03-24 13:22:50 +0100 | [diff] [blame] | 446 | default: |
| 447 | printf("get_fl_mem: unknown device type, " \ |
| 448 | "using raw offset!\n"); |
| 449 | } |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 450 | return (void*)off; |
| 451 | } |
| 452 | |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 453 | static inline void put_fl_mem(void *buf, void *ext_buf) |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 454 | { |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 455 | struct mtdids *id = current_part->dev->id; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 456 | |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 457 | /* If buf is the same as ext_buf, it was provided by the caller - |
| 458 | we shouldn't free it then. */ |
| 459 | if (buf == ext_buf) |
| 460 | return; |
Scott Wood | c97ba11 | 2008-10-31 13:51:12 -0500 | [diff] [blame] | 461 | switch (id->type) { |
| 462 | #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND) |
| 463 | case MTD_DEV_TYPE_NAND: |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 464 | return put_fl_mem_nand(buf); |
| 465 | #endif |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 466 | #if defined(CONFIG_CMD_ONENAND) |
Scott Wood | c97ba11 | 2008-10-31 13:51:12 -0500 | [diff] [blame] | 467 | case MTD_DEV_TYPE_ONENAND: |
Kyungmin Park | 2538374 | 2008-08-27 14:45:20 +0900 | [diff] [blame] | 468 | return put_fl_mem_onenand(buf); |
| 469 | #endif |
Scott Wood | c97ba11 | 2008-10-31 13:51:12 -0500 | [diff] [blame] | 470 | } |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 471 | } |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 472 | |
| 473 | /* Compression names */ |
| 474 | static char *compr_names[] = { |
| 475 | "NONE", |
| 476 | "ZERO", |
| 477 | "RTIME", |
| 478 | "RUBINMIPS", |
| 479 | "COPY", |
| 480 | "DYNRUBIN", |
wdenk | e84ec90 | 2005-05-05 00:04:14 +0000 | [diff] [blame] | 481 | "ZLIB", |
Wolfgang Denk | 0eded4f | 2010-01-15 11:10:33 +0100 | [diff] [blame] | 482 | #if defined(CONFIG_JFFS2_LZO) |
wdenk | e84ec90 | 2005-05-05 00:04:14 +0000 | [diff] [blame] | 483 | "LZO", |
wdenk | e84ec90 | 2005-05-05 00:04:14 +0000 | [diff] [blame] | 484 | #endif |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 485 | }; |
| 486 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 487 | /* Memory management */ |
| 488 | struct mem_block { |
| 489 | u32 index; |
| 490 | struct mem_block *next; |
| 491 | struct b_node nodes[NODE_CHUNK]; |
| 492 | }; |
| 493 | |
| 494 | |
| 495 | static void |
| 496 | free_nodes(struct b_list *list) |
| 497 | { |
| 498 | while (list->listMemBase != NULL) { |
| 499 | struct mem_block *next = list->listMemBase->next; |
| 500 | free( list->listMemBase ); |
| 501 | list->listMemBase = next; |
| 502 | } |
| 503 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 504 | |
| 505 | static struct b_node * |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 506 | add_node(struct b_list *list) |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 507 | { |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 508 | u32 index = 0; |
| 509 | struct mem_block *memBase; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 510 | struct b_node *b; |
| 511 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 512 | memBase = list->listMemBase; |
| 513 | if (memBase != NULL) |
| 514 | index = memBase->index; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 515 | #if 0 |
| 516 | putLabeledWord("add_node: index = ", index); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 517 | putLabeledWord("add_node: memBase = ", list->listMemBase); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 518 | #endif |
| 519 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 520 | if (memBase == NULL || index >= NODE_CHUNK) { |
| 521 | /* we need more space before we continue */ |
| 522 | memBase = mmalloc(sizeof(struct mem_block)); |
| 523 | if (memBase == NULL) { |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 524 | putstr("add_node: malloc failed\n"); |
| 525 | return NULL; |
| 526 | } |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 527 | memBase->next = list->listMemBase; |
| 528 | index = 0; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 529 | #if 0 |
| 530 | putLabeledWord("add_node: alloced a new membase at ", *memBase); |
| 531 | #endif |
| 532 | |
| 533 | } |
| 534 | /* now we have room to add it. */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 535 | b = &memBase->nodes[index]; |
| 536 | index ++; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 537 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 538 | memBase->index = index; |
| 539 | list->listMemBase = memBase; |
| 540 | list->listCount++; |
| 541 | return b; |
| 542 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 543 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 544 | static struct b_node * |
| 545 | insert_node(struct b_list *list, u32 offset) |
| 546 | { |
| 547 | struct b_node *new; |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 548 | #ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 549 | struct b_node *b, *prev; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 550 | #endif |
| 551 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 552 | if (!(new = add_node(list))) { |
| 553 | putstr("add_node failed!\r\n"); |
| 554 | return NULL; |
| 555 | } |
| 556 | new->offset = offset; |
| 557 | |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 558 | #ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 559 | if (list->listTail != NULL && list->listCompare(new, list->listTail)) |
| 560 | prev = list->listTail; |
| 561 | else if (list->listLast != NULL && list->listCompare(new, list->listLast)) |
| 562 | prev = list->listLast; |
| 563 | else |
| 564 | prev = NULL; |
| 565 | |
| 566 | for (b = (prev ? prev->next : list->listHead); |
| 567 | b != NULL && list->listCompare(new, b); |
| 568 | prev = b, b = b->next) { |
| 569 | list->listLoops++; |
| 570 | } |
| 571 | if (b != NULL) |
| 572 | list->listLast = prev; |
| 573 | |
| 574 | if (b != NULL) { |
| 575 | new->next = b; |
| 576 | if (prev != NULL) |
| 577 | prev->next = new; |
| 578 | else |
| 579 | list->listHead = new; |
| 580 | } else |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 581 | #endif |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 582 | { |
| 583 | new->next = (struct b_node *) NULL; |
| 584 | if (list->listTail != NULL) { |
| 585 | list->listTail->next = new; |
| 586 | list->listTail = new; |
| 587 | } else { |
| 588 | list->listTail = list->listHead = new; |
| 589 | } |
| 590 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 591 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 592 | return new; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 593 | } |
| 594 | |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 595 | #ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 596 | /* Sort data entries with the latest version last, so that if there |
| 597 | * is overlapping data the latest version will be used. |
| 598 | */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 599 | static int compare_inodes(struct b_node *new, struct b_node *old) |
| 600 | { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 601 | struct jffs2_raw_inode ojNew; |
| 602 | struct jffs2_raw_inode ojOld; |
| 603 | struct jffs2_raw_inode *jNew = |
| 604 | (struct jffs2_raw_inode *)get_fl_mem(new->offset, sizeof(ojNew), &ojNew); |
| 605 | struct jffs2_raw_inode *jOld = |
| 606 | (struct jffs2_raw_inode *)get_fl_mem(old->offset, sizeof(ojOld), &ojOld); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 607 | |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 608 | return jNew->version > jOld->version; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 609 | } |
| 610 | |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 611 | /* Sort directory entries so all entries in the same directory |
| 612 | * with the same name are grouped together, with the latest version |
| 613 | * last. This makes it easy to eliminate all but the latest version |
| 614 | * by marking the previous version dead by setting the inode to 0. |
| 615 | */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 616 | static int compare_dirents(struct b_node *new, struct b_node *old) |
| 617 | { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 618 | struct jffs2_raw_dirent ojNew; |
| 619 | struct jffs2_raw_dirent ojOld; |
| 620 | struct jffs2_raw_dirent *jNew = |
| 621 | (struct jffs2_raw_dirent *)get_fl_mem(new->offset, sizeof(ojNew), &ojNew); |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 622 | struct jffs2_raw_dirent *jOld = |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 623 | (struct jffs2_raw_dirent *)get_fl_mem(old->offset, sizeof(ojOld), &ojOld); |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 624 | int cmp; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 625 | |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 626 | /* ascending sort by pino */ |
| 627 | if (jNew->pino != jOld->pino) |
| 628 | return jNew->pino > jOld->pino; |
| 629 | |
| 630 | /* pino is the same, so use ascending sort by nsize, so |
| 631 | * we don't do strncmp unless we really must. |
| 632 | */ |
| 633 | if (jNew->nsize != jOld->nsize) |
| 634 | return jNew->nsize > jOld->nsize; |
| 635 | |
| 636 | /* length is also the same, so use ascending sort by name |
| 637 | */ |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 638 | cmp = strncmp((char *)jNew->name, (char *)jOld->name, jNew->nsize); |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 639 | if (cmp != 0) |
| 640 | return cmp > 0; |
| 641 | |
| 642 | /* we have duplicate names in this directory, so use ascending |
| 643 | * sort by version |
| 644 | */ |
| 645 | if (jNew->version > jOld->version) { |
| 646 | /* since jNew is newer, we know jOld is not valid, so |
| 647 | * mark it with inode 0 and it will not be used |
| 648 | */ |
| 649 | jOld->ino = 0; |
| 650 | return 1; |
| 651 | } |
wdenk | 9c53f40 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 652 | |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 653 | return 0; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 654 | } |
| 655 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 656 | |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 657 | void |
| 658 | jffs2_free_cache(struct part_info *part) |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 659 | { |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 660 | struct b_lists *pL; |
| 661 | |
| 662 | if (part->jffs2_priv != NULL) { |
| 663 | pL = (struct b_lists *)part->jffs2_priv; |
| 664 | free_nodes(&pL->frag); |
| 665 | free_nodes(&pL->dir); |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 666 | free(pL->readbuf); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 667 | free(pL); |
| 668 | } |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 669 | } |
| 670 | |
| 671 | static u32 |
| 672 | jffs_init_1pass_list(struct part_info *part) |
| 673 | { |
| 674 | struct b_lists *pL; |
| 675 | |
| 676 | jffs2_free_cache(part); |
| 677 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 678 | if (NULL != (part->jffs2_priv = malloc(sizeof(struct b_lists)))) { |
| 679 | pL = (struct b_lists *)part->jffs2_priv; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 680 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 681 | memset(pL, 0, sizeof(*pL)); |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 682 | #ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 683 | pL->dir.listCompare = compare_dirents; |
| 684 | pL->frag.listCompare = compare_inodes; |
| 685 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 686 | } |
| 687 | return 0; |
| 688 | } |
| 689 | |
| 690 | /* find the inode from the slashless name given a parent */ |
| 691 | static long |
| 692 | jffs2_1pass_read_inode(struct b_lists *pL, u32 inode, char *dest) |
| 693 | { |
| 694 | struct b_node *b; |
| 695 | struct jffs2_raw_inode *jNode; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 696 | u32 totalSize = 0; |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 697 | u32 latestVersion = 0; |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 698 | uchar *lDest; |
| 699 | uchar *src; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 700 | int i; |
| 701 | u32 counter = 0; |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 702 | #ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 703 | /* Find file size before loading any data, so fragments that |
| 704 | * start past the end of file can be ignored. A fragment |
| 705 | * that is partially in the file is loaded, so extra data may |
| 706 | * be loaded up to the next 4K boundary above the file size. |
| 707 | * This shouldn't cause trouble when loading kernel images, so |
| 708 | * we will live with it. |
| 709 | */ |
| 710 | for (b = pL->frag.listHead; b != NULL; b = b->next) { |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 711 | jNode = (struct jffs2_raw_inode *) get_fl_mem(b->offset, |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 712 | sizeof(struct jffs2_raw_inode), pL->readbuf); |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 713 | if ((inode == jNode->ino)) { |
| 714 | /* get actual file length from the newest node */ |
| 715 | if (jNode->version >= latestVersion) { |
| 716 | totalSize = jNode->isize; |
| 717 | latestVersion = jNode->version; |
| 718 | } |
| 719 | } |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 720 | put_fl_mem(jNode, pL->readbuf); |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 721 | } |
| 722 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 723 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 724 | for (b = pL->frag.listHead; b != NULL; b = b->next) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 725 | jNode = (struct jffs2_raw_inode *) get_node_mem(b->offset, |
| 726 | pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 727 | if ((inode == jNode->ino)) { |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 728 | #if 0 |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 729 | putLabeledWord("\r\n\r\nread_inode: totlen = ", jNode->totlen); |
| 730 | putLabeledWord("read_inode: inode = ", jNode->ino); |
| 731 | putLabeledWord("read_inode: version = ", jNode->version); |
| 732 | putLabeledWord("read_inode: isize = ", jNode->isize); |
| 733 | putLabeledWord("read_inode: offset = ", jNode->offset); |
| 734 | putLabeledWord("read_inode: csize = ", jNode->csize); |
| 735 | putLabeledWord("read_inode: dsize = ", jNode->dsize); |
| 736 | putLabeledWord("read_inode: compr = ", jNode->compr); |
| 737 | putLabeledWord("read_inode: usercompr = ", jNode->usercompr); |
| 738 | putLabeledWord("read_inode: flags = ", jNode->flags); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 739 | #endif |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 740 | |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 741 | #ifndef CONFIG_SYS_JFFS2_SORT_FRAGMENTS |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 742 | /* get actual file length from the newest node */ |
| 743 | if (jNode->version >= latestVersion) { |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 744 | totalSize = jNode->isize; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 745 | latestVersion = jNode->version; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 746 | } |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 747 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 748 | |
| 749 | if(dest) { |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 750 | src = ((uchar *) jNode) + sizeof(struct jffs2_raw_inode); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 751 | /* ignore data behind latest known EOF */ |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 752 | if (jNode->offset > totalSize) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 753 | put_fl_mem(jNode, pL->readbuf); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 754 | continue; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 755 | } |
Ilya Yanok | c0c0773 | 2008-11-13 19:49:36 +0300 | [diff] [blame] | 756 | if (b->datacrc == CRC_UNKNOWN) |
| 757 | b->datacrc = data_crc(jNode) ? |
| 758 | CRC_OK : CRC_BAD; |
| 759 | if (b->datacrc == CRC_BAD) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 760 | put_fl_mem(jNode, pL->readbuf); |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 761 | continue; |
| 762 | } |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 763 | |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 764 | lDest = (uchar *) (dest + jNode->offset); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 765 | #if 0 |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 766 | putLabeledWord("read_inode: src = ", src); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 767 | putLabeledWord("read_inode: dest = ", lDest); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 768 | #endif |
| 769 | switch (jNode->compr) { |
| 770 | case JFFS2_COMPR_NONE: |
Wolfgang Denk | bf913c1 | 2011-10-05 22:58:11 +0200 | [diff] [blame] | 771 | ldr_memcpy(lDest, src, jNode->dsize); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 772 | break; |
| 773 | case JFFS2_COMPR_ZERO: |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 774 | for (i = 0; i < jNode->dsize; i++) |
| 775 | *(lDest++) = 0; |
| 776 | break; |
| 777 | case JFFS2_COMPR_RTIME: |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 778 | rtime_decompress(src, lDest, jNode->csize, jNode->dsize); |
| 779 | break; |
| 780 | case JFFS2_COMPR_DYNRUBIN: |
| 781 | /* this is slow but it works */ |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 782 | dynrubin_decompress(src, lDest, jNode->csize, jNode->dsize); |
| 783 | break; |
| 784 | case JFFS2_COMPR_ZLIB: |
Wolfgang Denk | bf913c1 | 2011-10-05 22:58:11 +0200 | [diff] [blame] | 785 | zlib_decompress(src, lDest, jNode->csize, jNode->dsize); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 786 | break; |
Wolfgang Denk | 0eded4f | 2010-01-15 11:10:33 +0100 | [diff] [blame] | 787 | #if defined(CONFIG_JFFS2_LZO) |
wdenk | e84ec90 | 2005-05-05 00:04:14 +0000 | [diff] [blame] | 788 | case JFFS2_COMPR_LZO: |
Wolfgang Denk | bf913c1 | 2011-10-05 22:58:11 +0200 | [diff] [blame] | 789 | lzo_decompress(src, lDest, jNode->csize, jNode->dsize); |
wdenk | e84ec90 | 2005-05-05 00:04:14 +0000 | [diff] [blame] | 790 | break; |
| 791 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 792 | default: |
| 793 | /* unknown */ |
Loïc Minier | 5d0569a | 2011-02-03 22:04:26 +0100 | [diff] [blame] | 794 | putLabeledWord("UNKNOWN COMPRESSION METHOD = ", jNode->compr); |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 795 | put_fl_mem(jNode, pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 796 | return -1; |
| 797 | break; |
| 798 | } |
| 799 | } |
| 800 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 801 | #if 0 |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 802 | putLabeledWord("read_inode: totalSize = ", totalSize); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 803 | #endif |
| 804 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 805 | counter++; |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 806 | put_fl_mem(jNode, pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 807 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 808 | |
| 809 | #if 0 |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 810 | putLabeledWord("read_inode: returning = ", totalSize); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 811 | #endif |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 812 | return totalSize; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 813 | } |
| 814 | |
| 815 | /* find the inode from the slashless name given a parent */ |
| 816 | static u32 |
| 817 | jffs2_1pass_find_inode(struct b_lists * pL, const char *name, u32 pino) |
| 818 | { |
| 819 | struct b_node *b; |
| 820 | struct jffs2_raw_dirent *jDir; |
| 821 | int len; |
| 822 | u32 counter; |
| 823 | u32 version = 0; |
| 824 | u32 inode = 0; |
| 825 | |
| 826 | /* name is assumed slash free */ |
| 827 | len = strlen(name); |
| 828 | |
| 829 | counter = 0; |
| 830 | /* we need to search all and return the inode with the highest version */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 831 | for(b = pL->dir.listHead; b; b = b->next, counter++) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 832 | jDir = (struct jffs2_raw_dirent *) get_node_mem(b->offset, |
| 833 | pL->readbuf); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 834 | if ((pino == jDir->pino) && (len == jDir->nsize) && |
| 835 | (jDir->ino) && /* 0 for unlink */ |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 836 | (!strncmp((char *)jDir->name, name, len))) { /* a match */ |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 837 | if (jDir->version < version) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 838 | put_fl_mem(jDir, pL->readbuf); |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 839 | continue; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 840 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 841 | |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 842 | if (jDir->version == version && inode != 0) { |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 843 | /* I'm pretty sure this isn't legal */ |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 844 | putstr(" ** ERROR ** "); |
| 845 | putnstr(jDir->name, jDir->nsize); |
| 846 | putLabeledWord(" has dup version =", version); |
| 847 | } |
| 848 | inode = jDir->ino; |
| 849 | version = jDir->version; |
| 850 | } |
| 851 | #if 0 |
| 852 | putstr("\r\nfind_inode:p&l ->"); |
| 853 | putnstr(jDir->name, jDir->nsize); |
| 854 | putstr("\r\n"); |
| 855 | putLabeledWord("pino = ", jDir->pino); |
| 856 | putLabeledWord("nsize = ", jDir->nsize); |
| 857 | putLabeledWord("b = ", (u32) b); |
| 858 | putLabeledWord("counter = ", counter); |
| 859 | #endif |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 860 | put_fl_mem(jDir, pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 861 | } |
| 862 | return inode; |
| 863 | } |
| 864 | |
wdenk | ad276f2 | 2004-01-04 16:28:35 +0000 | [diff] [blame] | 865 | char *mkmodestr(unsigned long mode, char *str) |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 866 | { |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 867 | static const char *l = "xwr"; |
| 868 | int mask = 1, i; |
| 869 | char c; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 870 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 871 | switch (mode & S_IFMT) { |
| 872 | case S_IFDIR: str[0] = 'd'; break; |
| 873 | case S_IFBLK: str[0] = 'b'; break; |
| 874 | case S_IFCHR: str[0] = 'c'; break; |
| 875 | case S_IFIFO: str[0] = 'f'; break; |
| 876 | case S_IFLNK: str[0] = 'l'; break; |
| 877 | case S_IFSOCK: str[0] = 's'; break; |
| 878 | case S_IFREG: str[0] = '-'; break; |
| 879 | default: str[0] = '?'; |
| 880 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 881 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 882 | for(i = 0; i < 9; i++) { |
| 883 | c = l[i%3]; |
| 884 | str[9-i] = (mode & mask)?c:'-'; |
| 885 | mask = mask<<1; |
| 886 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 887 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 888 | if(mode & S_ISUID) str[3] = (mode & S_IXUSR)?'s':'S'; |
| 889 | if(mode & S_ISGID) str[6] = (mode & S_IXGRP)?'s':'S'; |
| 890 | if(mode & S_ISVTX) str[9] = (mode & S_IXOTH)?'t':'T'; |
| 891 | str[10] = '\0'; |
| 892 | return str; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 893 | } |
| 894 | |
| 895 | static inline void dump_stat(struct stat *st, const char *name) |
| 896 | { |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 897 | char str[20]; |
| 898 | char s[64], *p; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 899 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 900 | if (st->st_mtime == (time_t)(-1)) /* some ctimes really hate -1 */ |
| 901 | st->st_mtime = 1; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 902 | |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 903 | ctime_r((time_t *)&st->st_mtime, s/*,64*/); /* newlib ctime doesn't have buflen */ |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 904 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 905 | if ((p = strchr(s,'\n')) != NULL) *p = '\0'; |
| 906 | if ((p = strchr(s,'\r')) != NULL) *p = '\0'; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 907 | |
| 908 | /* |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 909 | printf("%6lo %s %8ld %s %s\n", st->st_mode, mkmodestr(st->st_mode, str), |
| 910 | st->st_size, s, name); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 911 | */ |
| 912 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 913 | printf(" %s %8ld %s %s", mkmodestr(st->st_mode,str), st->st_size, s, name); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 914 | } |
| 915 | |
| 916 | static inline u32 dump_inode(struct b_lists * pL, struct jffs2_raw_dirent *d, struct jffs2_raw_inode *i) |
| 917 | { |
| 918 | char fname[256]; |
| 919 | struct stat st; |
| 920 | |
| 921 | if(!d || !i) return -1; |
| 922 | |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 923 | strncpy(fname, (char *)d->name, d->nsize); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 924 | fname[d->nsize] = '\0'; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 925 | |
| 926 | memset(&st,0,sizeof(st)); |
| 927 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 928 | st.st_mtime = i->mtime; |
| 929 | st.st_mode = i->mode; |
| 930 | st.st_ino = i->ino; |
Ilya Yanok | c4785fb | 2008-11-13 19:49:31 +0300 | [diff] [blame] | 931 | st.st_size = i->isize; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 932 | |
| 933 | dump_stat(&st, fname); |
| 934 | |
| 935 | if (d->type == DT_LNK) { |
| 936 | unsigned char *src = (unsigned char *) (&i[1]); |
| 937 | putstr(" -> "); |
| 938 | putnstr(src, (int)i->dsize); |
| 939 | } |
| 940 | |
| 941 | putstr("\r\n"); |
| 942 | |
| 943 | return 0; |
| 944 | } |
| 945 | |
| 946 | /* list inodes with the given pino */ |
| 947 | static u32 |
| 948 | jffs2_1pass_list_inodes(struct b_lists * pL, u32 pino) |
| 949 | { |
| 950 | struct b_node *b; |
| 951 | struct jffs2_raw_dirent *jDir; |
| 952 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 953 | for (b = pL->dir.listHead; b; b = b->next) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 954 | jDir = (struct jffs2_raw_dirent *) get_node_mem(b->offset, |
| 955 | pL->readbuf); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 956 | if ((pino == jDir->pino) && (jDir->ino)) { /* ino=0 -> unlink */ |
| 957 | u32 i_version = 0; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 958 | struct jffs2_raw_inode ojNode; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 959 | struct jffs2_raw_inode *jNode, *i = NULL; |
| 960 | struct b_node *b2 = pL->frag.listHead; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 961 | |
| 962 | while (b2) { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 963 | jNode = (struct jffs2_raw_inode *) |
| 964 | get_fl_mem(b2->offset, sizeof(ojNode), &ojNode); |
wdenk | f248ebc | 2004-05-05 19:44:41 +0000 | [diff] [blame] | 965 | if (jNode->ino == jDir->ino && jNode->version >= i_version) { |
Ilya Yanok | c4785fb | 2008-11-13 19:49:31 +0300 | [diff] [blame] | 966 | i_version = jNode->version; |
wdenk | f248ebc | 2004-05-05 19:44:41 +0000 | [diff] [blame] | 967 | if (i) |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 968 | put_fl_mem(i, NULL); |
wdenk | e02d2ae | 2005-05-04 23:50:54 +0000 | [diff] [blame] | 969 | |
| 970 | if (jDir->type == DT_LNK) |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 971 | i = get_node_mem(b2->offset, |
| 972 | NULL); |
wdenk | e02d2ae | 2005-05-04 23:50:54 +0000 | [diff] [blame] | 973 | else |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 974 | i = get_fl_mem(b2->offset, |
| 975 | sizeof(*i), |
| 976 | NULL); |
wdenk | f248ebc | 2004-05-05 19:44:41 +0000 | [diff] [blame] | 977 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 978 | b2 = b2->next; |
| 979 | } |
| 980 | |
| 981 | dump_inode(pL, jDir, i); |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 982 | put_fl_mem(i, NULL); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 983 | } |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 984 | put_fl_mem(jDir, pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 985 | } |
| 986 | return pino; |
| 987 | } |
| 988 | |
| 989 | static u32 |
| 990 | jffs2_1pass_search_inode(struct b_lists * pL, const char *fname, u32 pino) |
| 991 | { |
| 992 | int i; |
| 993 | char tmp[256]; |
| 994 | char working_tmp[256]; |
| 995 | char *c; |
| 996 | |
| 997 | /* discard any leading slash */ |
| 998 | i = 0; |
| 999 | while (fname[i] == '/') |
| 1000 | i++; |
| 1001 | strcpy(tmp, &fname[i]); |
| 1002 | |
| 1003 | while ((c = (char *) strchr(tmp, '/'))) /* we are still dired searching */ |
| 1004 | { |
| 1005 | strncpy(working_tmp, tmp, c - tmp); |
| 1006 | working_tmp[c - tmp] = '\0'; |
| 1007 | #if 0 |
| 1008 | putstr("search_inode: tmp = "); |
| 1009 | putstr(tmp); |
| 1010 | putstr("\r\n"); |
| 1011 | putstr("search_inode: wtmp = "); |
| 1012 | putstr(working_tmp); |
| 1013 | putstr("\r\n"); |
| 1014 | putstr("search_inode: c = "); |
| 1015 | putstr(c); |
| 1016 | putstr("\r\n"); |
| 1017 | #endif |
| 1018 | for (i = 0; i < strlen(c) - 1; i++) |
| 1019 | tmp[i] = c[i + 1]; |
| 1020 | tmp[i] = '\0'; |
| 1021 | #if 0 |
| 1022 | putstr("search_inode: post tmp = "); |
| 1023 | putstr(tmp); |
| 1024 | putstr("\r\n"); |
| 1025 | #endif |
| 1026 | |
| 1027 | if (!(pino = jffs2_1pass_find_inode(pL, working_tmp, pino))) { |
| 1028 | putstr("find_inode failed for name="); |
| 1029 | putstr(working_tmp); |
| 1030 | putstr("\r\n"); |
| 1031 | return 0; |
| 1032 | } |
| 1033 | } |
| 1034 | /* this is for the bare filename, directories have already been mapped */ |
| 1035 | if (!(pino = jffs2_1pass_find_inode(pL, tmp, pino))) { |
| 1036 | putstr("find_inode failed for name="); |
| 1037 | putstr(tmp); |
| 1038 | putstr("\r\n"); |
| 1039 | return 0; |
| 1040 | } |
| 1041 | return pino; |
| 1042 | |
| 1043 | } |
| 1044 | |
| 1045 | static u32 |
| 1046 | jffs2_1pass_resolve_inode(struct b_lists * pL, u32 ino) |
| 1047 | { |
| 1048 | struct b_node *b; |
| 1049 | struct b_node *b2; |
| 1050 | struct jffs2_raw_dirent *jDir; |
| 1051 | struct jffs2_raw_inode *jNode; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1052 | u8 jDirFoundType = 0; |
| 1053 | u32 jDirFoundIno = 0; |
| 1054 | u32 jDirFoundPino = 0; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1055 | char tmp[256]; |
| 1056 | u32 version = 0; |
| 1057 | u32 pino; |
| 1058 | unsigned char *src; |
| 1059 | |
| 1060 | /* we need to search all and return the inode with the highest version */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1061 | for(b = pL->dir.listHead; b; b = b->next) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1062 | jDir = (struct jffs2_raw_dirent *) get_node_mem(b->offset, |
| 1063 | pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1064 | if (ino == jDir->ino) { |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 1065 | if (jDir->version < version) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1066 | put_fl_mem(jDir, pL->readbuf); |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 1067 | continue; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1068 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1069 | |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1070 | if (jDir->version == version && jDirFoundType) { |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 1071 | /* I'm pretty sure this isn't legal */ |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1072 | putstr(" ** ERROR ** "); |
| 1073 | putnstr(jDir->name, jDir->nsize); |
| 1074 | putLabeledWord(" has dup version (resolve) = ", |
| 1075 | version); |
| 1076 | } |
| 1077 | |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1078 | jDirFoundType = jDir->type; |
| 1079 | jDirFoundIno = jDir->ino; |
| 1080 | jDirFoundPino = jDir->pino; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1081 | version = jDir->version; |
| 1082 | } |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1083 | put_fl_mem(jDir, pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1084 | } |
| 1085 | /* now we found the right entry again. (shoulda returned inode*) */ |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1086 | if (jDirFoundType != DT_LNK) |
| 1087 | return jDirFoundIno; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1088 | |
| 1089 | /* it's a soft link so we follow it again. */ |
| 1090 | b2 = pL->frag.listHead; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1091 | while (b2) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1092 | jNode = (struct jffs2_raw_inode *) get_node_mem(b2->offset, |
| 1093 | pL->readbuf); |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1094 | if (jNode->ino == jDirFoundIno) { |
wdenk | 6c59edc | 2004-05-03 20:45:30 +0000 | [diff] [blame] | 1095 | src = (unsigned char *)jNode + sizeof(struct jffs2_raw_inode); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1096 | |
| 1097 | #if 0 |
| 1098 | putLabeledWord("\t\t dsize = ", jNode->dsize); |
| 1099 | putstr("\t\t target = "); |
| 1100 | putnstr(src, jNode->dsize); |
| 1101 | putstr("\r\n"); |
| 1102 | #endif |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 1103 | strncpy(tmp, (char *)src, jNode->dsize); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1104 | tmp[jNode->dsize] = '\0'; |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1105 | put_fl_mem(jNode, pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1106 | break; |
| 1107 | } |
| 1108 | b2 = b2->next; |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1109 | put_fl_mem(jNode, pL->readbuf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1110 | } |
| 1111 | /* ok so the name of the new file to find is in tmp */ |
| 1112 | /* if it starts with a slash it is root based else shared dirs */ |
| 1113 | if (tmp[0] == '/') |
| 1114 | pino = 1; |
| 1115 | else |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1116 | pino = jDirFoundPino; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1117 | |
| 1118 | return jffs2_1pass_search_inode(pL, tmp, pino); |
| 1119 | } |
| 1120 | |
| 1121 | static u32 |
| 1122 | jffs2_1pass_search_list_inodes(struct b_lists * pL, const char *fname, u32 pino) |
| 1123 | { |
| 1124 | int i; |
| 1125 | char tmp[256]; |
| 1126 | char working_tmp[256]; |
| 1127 | char *c; |
| 1128 | |
| 1129 | /* discard any leading slash */ |
| 1130 | i = 0; |
| 1131 | while (fname[i] == '/') |
| 1132 | i++; |
| 1133 | strcpy(tmp, &fname[i]); |
| 1134 | working_tmp[0] = '\0'; |
| 1135 | while ((c = (char *) strchr(tmp, '/'))) /* we are still dired searching */ |
| 1136 | { |
| 1137 | strncpy(working_tmp, tmp, c - tmp); |
| 1138 | working_tmp[c - tmp] = '\0'; |
| 1139 | for (i = 0; i < strlen(c) - 1; i++) |
| 1140 | tmp[i] = c[i + 1]; |
| 1141 | tmp[i] = '\0'; |
| 1142 | /* only a failure if we arent looking at top level */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1143 | if (!(pino = jffs2_1pass_find_inode(pL, working_tmp, pino)) && |
| 1144 | (working_tmp[0])) { |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1145 | putstr("find_inode failed for name="); |
| 1146 | putstr(working_tmp); |
| 1147 | putstr("\r\n"); |
| 1148 | return 0; |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | if (tmp[0] && !(pino = jffs2_1pass_find_inode(pL, tmp, pino))) { |
| 1153 | putstr("find_inode failed for name="); |
| 1154 | putstr(tmp); |
| 1155 | putstr("\r\n"); |
| 1156 | return 0; |
| 1157 | } |
| 1158 | /* this is for the bare filename, directories have already been mapped */ |
| 1159 | if (!(pino = jffs2_1pass_list_inodes(pL, pino))) { |
| 1160 | putstr("find_inode failed for name="); |
| 1161 | putstr(tmp); |
| 1162 | putstr("\r\n"); |
| 1163 | return 0; |
| 1164 | } |
| 1165 | return pino; |
| 1166 | |
| 1167 | } |
| 1168 | |
| 1169 | unsigned char |
| 1170 | jffs2_1pass_rescan_needed(struct part_info *part) |
| 1171 | { |
| 1172 | struct b_node *b; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1173 | struct jffs2_unknown_node onode; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1174 | struct jffs2_unknown_node *node; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1175 | struct b_lists *pL = (struct b_lists *)part->jffs2_priv; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1176 | |
| 1177 | if (part->jffs2_priv == 0){ |
| 1178 | DEBUGF ("rescan: First time in use\n"); |
| 1179 | return 1; |
| 1180 | } |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 1181 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1182 | /* if we have no list, we need to rescan */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1183 | if (pL->frag.listCount == 0) { |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1184 | DEBUGF ("rescan: fraglist zero\n"); |
| 1185 | return 1; |
| 1186 | } |
| 1187 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1188 | /* but suppose someone reflashed a partition at the same offset... */ |
| 1189 | b = pL->dir.listHead; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1190 | while (b) { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1191 | node = (struct jffs2_unknown_node *) get_fl_mem(b->offset, |
| 1192 | sizeof(onode), &onode); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1193 | if (node->nodetype != JFFS2_NODETYPE_DIRENT) { |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1194 | DEBUGF ("rescan: fs changed beneath me? (%lx)\n", |
| 1195 | (unsigned long) b->offset); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1196 | return 1; |
| 1197 | } |
| 1198 | b = b->next; |
| 1199 | } |
| 1200 | return 0; |
| 1201 | } |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1202 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1203 | #ifdef CONFIG_JFFS2_SUMMARY |
| 1204 | static u32 sum_get_unaligned32(u32 *ptr) |
| 1205 | { |
| 1206 | u32 val; |
| 1207 | u8 *p = (u8 *)ptr; |
| 1208 | |
| 1209 | val = *p | (*(p + 1) << 8) | (*(p + 2) << 16) | (*(p + 3) << 24); |
| 1210 | |
| 1211 | return __le32_to_cpu(val); |
| 1212 | } |
| 1213 | |
| 1214 | static u16 sum_get_unaligned16(u16 *ptr) |
| 1215 | { |
| 1216 | u16 val; |
| 1217 | u8 *p = (u8 *)ptr; |
| 1218 | |
| 1219 | val = *p | (*(p + 1) << 8); |
| 1220 | |
| 1221 | return __le16_to_cpu(val); |
| 1222 | } |
| 1223 | |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1224 | #define dbg_summary(...) do {} while (0); |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1225 | /* |
| 1226 | * Process the stored summary information - helper function for |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1227 | * jffs2_sum_scan_sumnode() |
| 1228 | */ |
| 1229 | |
| 1230 | static int jffs2_sum_process_sum_data(struct part_info *part, uint32_t offset, |
| 1231 | struct jffs2_raw_summary *summary, |
| 1232 | struct b_lists *pL) |
| 1233 | { |
| 1234 | void *sp; |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1235 | int i, pass; |
| 1236 | void *ret; |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1237 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1238 | for (pass = 0; pass < 2; pass++) { |
| 1239 | sp = summary->sum; |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1240 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1241 | for (i = 0; i < summary->sum_num; i++) { |
| 1242 | struct jffs2_sum_unknown_flash *spu = sp; |
| 1243 | dbg_summary("processing summary index %d\n", i); |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1244 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1245 | switch (sum_get_unaligned16(&spu->nodetype)) { |
| 1246 | case JFFS2_NODETYPE_INODE: { |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1247 | struct jffs2_sum_inode_flash *spi; |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1248 | if (pass) { |
| 1249 | spi = sp; |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1250 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1251 | ret = insert_node(&pL->frag, |
| 1252 | (u32)part->offset + |
| 1253 | offset + |
| 1254 | sum_get_unaligned32( |
| 1255 | &spi->offset)); |
| 1256 | if (ret == NULL) |
| 1257 | return -1; |
| 1258 | } |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1259 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1260 | sp += JFFS2_SUMMARY_INODE_SIZE; |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1261 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1262 | break; |
| 1263 | } |
| 1264 | case JFFS2_NODETYPE_DIRENT: { |
| 1265 | struct jffs2_sum_dirent_flash *spd; |
| 1266 | spd = sp; |
| 1267 | if (pass) { |
| 1268 | ret = insert_node(&pL->dir, |
| 1269 | (u32) part->offset + |
| 1270 | offset + |
| 1271 | sum_get_unaligned32( |
| 1272 | &spd->offset)); |
| 1273 | if (ret == NULL) |
| 1274 | return -1; |
| 1275 | } |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1276 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1277 | sp += JFFS2_SUMMARY_DIRENT_SIZE( |
| 1278 | spd->nsize); |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1279 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1280 | break; |
| 1281 | } |
| 1282 | default : { |
| 1283 | uint16_t nodetype = sum_get_unaligned16( |
| 1284 | &spu->nodetype); |
| 1285 | printf("Unsupported node type %x found" |
| 1286 | " in summary!\n", |
| 1287 | nodetype); |
| 1288 | if ((nodetype & JFFS2_COMPAT_MASK) == |
| 1289 | JFFS2_FEATURE_INCOMPAT) |
| 1290 | return -EIO; |
| 1291 | return -EBADMSG; |
| 1292 | } |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1293 | } |
| 1294 | } |
| 1295 | } |
| 1296 | return 0; |
| 1297 | } |
| 1298 | |
| 1299 | /* Process the summary node - called from jffs2_scan_eraseblock() */ |
| 1300 | int jffs2_sum_scan_sumnode(struct part_info *part, uint32_t offset, |
| 1301 | struct jffs2_raw_summary *summary, uint32_t sumsize, |
| 1302 | struct b_lists *pL) |
| 1303 | { |
| 1304 | struct jffs2_unknown_node crcnode; |
| 1305 | int ret, ofs; |
| 1306 | uint32_t crc; |
| 1307 | |
| 1308 | ofs = part->sector_size - sumsize; |
| 1309 | |
| 1310 | dbg_summary("summary found for 0x%08x at 0x%08x (0x%x bytes)\n", |
| 1311 | offset, offset + ofs, sumsize); |
| 1312 | |
| 1313 | /* OK, now check for node validity and CRC */ |
| 1314 | crcnode.magic = JFFS2_MAGIC_BITMASK; |
| 1315 | crcnode.nodetype = JFFS2_NODETYPE_SUMMARY; |
| 1316 | crcnode.totlen = summary->totlen; |
| 1317 | crc = crc32_no_comp(0, (uchar *)&crcnode, sizeof(crcnode)-4); |
| 1318 | |
| 1319 | if (summary->hdr_crc != crc) { |
| 1320 | dbg_summary("Summary node header is corrupt (bad CRC or " |
| 1321 | "no summary at all)\n"); |
| 1322 | goto crc_err; |
| 1323 | } |
| 1324 | |
| 1325 | if (summary->totlen != sumsize) { |
| 1326 | dbg_summary("Summary node is corrupt (wrong erasesize?)\n"); |
| 1327 | goto crc_err; |
| 1328 | } |
| 1329 | |
| 1330 | crc = crc32_no_comp(0, (uchar *)summary, |
| 1331 | sizeof(struct jffs2_raw_summary)-8); |
| 1332 | |
| 1333 | if (summary->node_crc != crc) { |
| 1334 | dbg_summary("Summary node is corrupt (bad CRC)\n"); |
| 1335 | goto crc_err; |
| 1336 | } |
| 1337 | |
| 1338 | crc = crc32_no_comp(0, (uchar *)summary->sum, |
| 1339 | sumsize - sizeof(struct jffs2_raw_summary)); |
| 1340 | |
| 1341 | if (summary->sum_crc != crc) { |
| 1342 | dbg_summary("Summary node data is corrupt (bad CRC)\n"); |
| 1343 | goto crc_err; |
| 1344 | } |
| 1345 | |
| 1346 | if (summary->cln_mkr) |
| 1347 | dbg_summary("Summary : CLEANMARKER node \n"); |
| 1348 | |
| 1349 | ret = jffs2_sum_process_sum_data(part, offset, summary, pL); |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1350 | if (ret == -EBADMSG) |
| 1351 | return 0; |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1352 | if (ret) |
| 1353 | return ret; /* real error */ |
| 1354 | |
| 1355 | return 1; |
| 1356 | |
| 1357 | crc_err: |
| 1358 | putstr("Summary node crc error, skipping summary information.\n"); |
| 1359 | |
| 1360 | return 0; |
| 1361 | } |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1362 | #endif /* CONFIG_JFFS2_SUMMARY */ |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1363 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1364 | #ifdef DEBUG_FRAGMENTS |
| 1365 | static void |
| 1366 | dump_fragments(struct b_lists *pL) |
| 1367 | { |
| 1368 | struct b_node *b; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1369 | struct jffs2_raw_inode ojNode; |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1370 | struct jffs2_raw_inode *jNode; |
| 1371 | |
| 1372 | putstr("\r\n\r\n******The fragment Entries******\r\n"); |
| 1373 | b = pL->frag.listHead; |
| 1374 | while (b) { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1375 | jNode = (struct jffs2_raw_inode *) get_fl_mem(b->offset, |
| 1376 | sizeof(ojNode), &ojNode); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1377 | putLabeledWord("\r\n\tbuild_list: FLASH_OFFSET = ", b->offset); |
| 1378 | putLabeledWord("\tbuild_list: totlen = ", jNode->totlen); |
| 1379 | putLabeledWord("\tbuild_list: inode = ", jNode->ino); |
| 1380 | putLabeledWord("\tbuild_list: version = ", jNode->version); |
| 1381 | putLabeledWord("\tbuild_list: isize = ", jNode->isize); |
| 1382 | putLabeledWord("\tbuild_list: atime = ", jNode->atime); |
| 1383 | putLabeledWord("\tbuild_list: offset = ", jNode->offset); |
| 1384 | putLabeledWord("\tbuild_list: csize = ", jNode->csize); |
| 1385 | putLabeledWord("\tbuild_list: dsize = ", jNode->dsize); |
| 1386 | putLabeledWord("\tbuild_list: compr = ", jNode->compr); |
| 1387 | putLabeledWord("\tbuild_list: usercompr = ", jNode->usercompr); |
| 1388 | putLabeledWord("\tbuild_list: flags = ", jNode->flags); |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 1389 | putLabeledWord("\tbuild_list: offset = ", b->offset); /* FIXME: ? [RS] */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1390 | b = b->next; |
| 1391 | } |
| 1392 | } |
| 1393 | #endif |
| 1394 | |
| 1395 | #ifdef DEBUG_DIRENTS |
| 1396 | static void |
| 1397 | dump_dirents(struct b_lists *pL) |
| 1398 | { |
| 1399 | struct b_node *b; |
| 1400 | struct jffs2_raw_dirent *jDir; |
| 1401 | |
| 1402 | putstr("\r\n\r\n******The directory Entries******\r\n"); |
| 1403 | b = pL->dir.listHead; |
| 1404 | while (b) { |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1405 | jDir = (struct jffs2_raw_dirent *) get_node_mem(b->offset, |
| 1406 | pL->readbuf); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1407 | putstr("\r\n"); |
| 1408 | putnstr(jDir->name, jDir->nsize); |
| 1409 | putLabeledWord("\r\n\tbuild_list: magic = ", jDir->magic); |
| 1410 | putLabeledWord("\tbuild_list: nodetype = ", jDir->nodetype); |
| 1411 | putLabeledWord("\tbuild_list: hdr_crc = ", jDir->hdr_crc); |
| 1412 | putLabeledWord("\tbuild_list: pino = ", jDir->pino); |
| 1413 | putLabeledWord("\tbuild_list: version = ", jDir->version); |
| 1414 | putLabeledWord("\tbuild_list: ino = ", jDir->ino); |
| 1415 | putLabeledWord("\tbuild_list: mctime = ", jDir->mctime); |
| 1416 | putLabeledWord("\tbuild_list: nsize = ", jDir->nsize); |
| 1417 | putLabeledWord("\tbuild_list: type = ", jDir->type); |
| 1418 | putLabeledWord("\tbuild_list: node_crc = ", jDir->node_crc); |
| 1419 | putLabeledWord("\tbuild_list: name_crc = ", jDir->name_crc); |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 1420 | putLabeledWord("\tbuild_list: offset = ", b->offset); /* FIXME: ? [RS] */ |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1421 | b = b->next; |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1422 | put_fl_mem(jDir, pL->readbuf); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1423 | } |
| 1424 | } |
| 1425 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1426 | |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1427 | #define DEFAULT_EMPTY_SCAN_SIZE 4096 |
| 1428 | |
| 1429 | static inline uint32_t EMPTY_SCAN_SIZE(uint32_t sector_size) |
| 1430 | { |
| 1431 | if (sector_size < DEFAULT_EMPTY_SCAN_SIZE) |
| 1432 | return sector_size; |
| 1433 | else |
| 1434 | return DEFAULT_EMPTY_SCAN_SIZE; |
| 1435 | } |
| 1436 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1437 | static u32 |
| 1438 | jffs2_1pass_build_lists(struct part_info * part) |
| 1439 | { |
| 1440 | struct b_lists *pL; |
| 1441 | struct jffs2_unknown_node *node; |
Tom Rini | 3cd84d6 | 2013-12-05 14:48:38 -0500 | [diff] [blame] | 1442 | u32 nr_sectors; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1443 | u32 i; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1444 | u32 counter4 = 0; |
| 1445 | u32 counterF = 0; |
| 1446 | u32 counterN = 0; |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1447 | u32 max_totlen = 0; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1448 | u32 buf_size = DEFAULT_EMPTY_SCAN_SIZE; |
| 1449 | char *buf; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1450 | |
Tom Rini | 3cd84d6 | 2013-12-05 14:48:38 -0500 | [diff] [blame] | 1451 | nr_sectors = lldiv(part->size, part->sector_size); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1452 | /* turn off the lcd. Refreshing the lcd adds 50% overhead to the */ |
| 1453 | /* jffs2 list building enterprise nope. in newer versions the overhead is */ |
| 1454 | /* only about 5 %. not enough to inconvenience people for. */ |
| 1455 | /* lcd_off(); */ |
| 1456 | |
| 1457 | /* if we are building a list we need to refresh the cache. */ |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1458 | jffs_init_1pass_list(part); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1459 | pL = (struct b_lists *)part->jffs2_priv; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1460 | buf = malloc(buf_size); |
wdenk | 42c0547 | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1461 | puts ("Scanning JFFS2 FS: "); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1462 | |
| 1463 | /* start at the beginning of the partition */ |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1464 | for (i = 0; i < nr_sectors; i++) { |
| 1465 | uint32_t sector_ofs = i * part->sector_size; |
| 1466 | uint32_t buf_ofs = sector_ofs; |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1467 | uint32_t buf_len; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1468 | uint32_t ofs, prevofs; |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1469 | #ifdef CONFIG_JFFS2_SUMMARY |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1470 | struct jffs2_sum_marker *sm; |
| 1471 | void *sumptr = NULL; |
| 1472 | uint32_t sumlen; |
| 1473 | int ret; |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1474 | #endif |
wdenk | 7ad5e4c | 2004-04-25 15:41:35 +0000 | [diff] [blame] | 1475 | |
Stuart Wood | 471a2f0 | 2008-06-02 16:40:08 -0400 | [diff] [blame] | 1476 | WATCHDOG_RESET(); |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1477 | |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1478 | #ifdef CONFIG_JFFS2_SUMMARY |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1479 | buf_len = sizeof(*sm); |
| 1480 | |
| 1481 | /* Read as much as we want into the _end_ of the preallocated |
| 1482 | * buffer |
| 1483 | */ |
| 1484 | get_fl_mem(part->offset + sector_ofs + part->sector_size - |
| 1485 | buf_len, buf_len, buf + buf_size - buf_len); |
| 1486 | |
| 1487 | sm = (void *)buf + buf_size - sizeof(*sm); |
| 1488 | if (sm->magic == JFFS2_SUM_MAGIC) { |
| 1489 | sumlen = part->sector_size - sm->offset; |
| 1490 | sumptr = buf + buf_size - sumlen; |
| 1491 | |
| 1492 | /* Now, make sure the summary itself is available */ |
| 1493 | if (sumlen > buf_size) { |
| 1494 | /* Need to kmalloc for this. */ |
| 1495 | sumptr = malloc(sumlen); |
| 1496 | if (!sumptr) { |
| 1497 | putstr("Can't get memory for summary " |
| 1498 | "node!\n"); |
Ilya Yanok | a87011e | 2009-08-12 16:42:48 +0400 | [diff] [blame] | 1499 | free(buf); |
| 1500 | jffs2_free_cache(part); |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1501 | return 0; |
| 1502 | } |
| 1503 | memcpy(sumptr + sumlen - buf_len, buf + |
| 1504 | buf_size - buf_len, buf_len); |
| 1505 | } |
| 1506 | if (buf_len < sumlen) { |
| 1507 | /* Need to read more so that the entire summary |
| 1508 | * node is present |
| 1509 | */ |
| 1510 | get_fl_mem(part->offset + sector_ofs + |
| 1511 | part->sector_size - sumlen, |
| 1512 | sumlen - buf_len, sumptr); |
| 1513 | } |
| 1514 | } |
| 1515 | |
| 1516 | if (sumptr) { |
| 1517 | ret = jffs2_sum_scan_sumnode(part, sector_ofs, sumptr, |
| 1518 | sumlen, pL); |
| 1519 | |
| 1520 | if (buf_size && sumlen > buf_size) |
| 1521 | free(sumptr); |
Ilya Yanok | a87011e | 2009-08-12 16:42:48 +0400 | [diff] [blame] | 1522 | if (ret < 0) { |
| 1523 | free(buf); |
| 1524 | jffs2_free_cache(part); |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1525 | return 0; |
Ilya Yanok | a87011e | 2009-08-12 16:42:48 +0400 | [diff] [blame] | 1526 | } |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1527 | if (ret) |
| 1528 | continue; |
| 1529 | |
| 1530 | } |
Ilya Yanok | bcaa1f7 | 2009-07-17 15:02:42 +0400 | [diff] [blame] | 1531 | #endif /* CONFIG_JFFS2_SUMMARY */ |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1532 | |
| 1533 | buf_len = EMPTY_SCAN_SIZE(part->sector_size); |
| 1534 | |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1535 | get_fl_mem((u32)part->offset + buf_ofs, buf_len, buf); |
Stuart Wood | 471a2f0 | 2008-06-02 16:40:08 -0400 | [diff] [blame] | 1536 | |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1537 | /* We temporarily use 'ofs' as a pointer into the buffer/jeb */ |
| 1538 | ofs = 0; |
| 1539 | |
| 1540 | /* Scan only 4KiB of 0xFF before declaring it's empty */ |
| 1541 | while (ofs < EMPTY_SCAN_SIZE(part->sector_size) && |
| 1542 | *(uint32_t *)(&buf[ofs]) == 0xFFFFFFFF) |
| 1543 | ofs += 4; |
| 1544 | |
| 1545 | if (ofs == EMPTY_SCAN_SIZE(part->sector_size)) |
| 1546 | continue; |
| 1547 | |
| 1548 | ofs += sector_ofs; |
| 1549 | prevofs = ofs - 1; |
| 1550 | |
| 1551 | scan_more: |
| 1552 | while (ofs < sector_ofs + part->sector_size) { |
| 1553 | if (ofs == prevofs) { |
| 1554 | printf("offset %08x already seen, skip\n", ofs); |
| 1555 | ofs += 4; |
| 1556 | counter4++; |
| 1557 | continue; |
| 1558 | } |
| 1559 | prevofs = ofs; |
| 1560 | if (sector_ofs + part->sector_size < |
| 1561 | ofs + sizeof(*node)) |
| 1562 | break; |
| 1563 | if (buf_ofs + buf_len < ofs + sizeof(*node)) { |
| 1564 | buf_len = min_t(uint32_t, buf_size, sector_ofs |
| 1565 | + part->sector_size - ofs); |
| 1566 | get_fl_mem((u32)part->offset + ofs, buf_len, |
| 1567 | buf); |
| 1568 | buf_ofs = ofs; |
| 1569 | } |
| 1570 | |
| 1571 | node = (struct jffs2_unknown_node *)&buf[ofs-buf_ofs]; |
| 1572 | |
| 1573 | if (*(uint32_t *)(&buf[ofs-buf_ofs]) == 0xffffffff) { |
| 1574 | uint32_t inbuf_ofs; |
Wolfgang Denk | bf913c1 | 2011-10-05 22:58:11 +0200 | [diff] [blame] | 1575 | uint32_t scan_end; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1576 | |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1577 | ofs += 4; |
| 1578 | scan_end = min_t(uint32_t, EMPTY_SCAN_SIZE( |
| 1579 | part->sector_size)/8, |
| 1580 | buf_len); |
| 1581 | more_empty: |
| 1582 | inbuf_ofs = ofs - buf_ofs; |
| 1583 | while (inbuf_ofs < scan_end) { |
| 1584 | if (*(uint32_t *)(&buf[inbuf_ofs]) != |
| 1585 | 0xffffffff) |
| 1586 | goto scan_more; |
| 1587 | |
| 1588 | inbuf_ofs += 4; |
| 1589 | ofs += 4; |
| 1590 | } |
| 1591 | /* Ran off end. */ |
| 1592 | |
| 1593 | /* See how much more there is to read in this |
| 1594 | * eraseblock... |
| 1595 | */ |
| 1596 | buf_len = min_t(uint32_t, buf_size, |
| 1597 | sector_ofs + |
| 1598 | part->sector_size - ofs); |
| 1599 | if (!buf_len) { |
| 1600 | /* No more to read. Break out of main |
| 1601 | * loop without marking this range of |
| 1602 | * empty space as dirty (because it's |
| 1603 | * not) |
| 1604 | */ |
| 1605 | break; |
| 1606 | } |
| 1607 | scan_end = buf_len; |
| 1608 | get_fl_mem((u32)part->offset + ofs, buf_len, |
| 1609 | buf); |
| 1610 | buf_ofs = ofs; |
| 1611 | goto more_empty; |
| 1612 | } |
| 1613 | if (node->magic != JFFS2_MAGIC_BITMASK || |
| 1614 | !hdr_crc(node)) { |
| 1615 | ofs += 4; |
| 1616 | counter4++; |
| 1617 | continue; |
| 1618 | } |
| 1619 | if (ofs + node->totlen > |
| 1620 | sector_ofs + part->sector_size) { |
| 1621 | ofs += 4; |
| 1622 | counter4++; |
| 1623 | continue; |
| 1624 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1625 | /* if its a fragment add it */ |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1626 | switch (node->nodetype) { |
| 1627 | case JFFS2_NODETYPE_INODE: |
| 1628 | if (buf_ofs + buf_len < ofs + sizeof(struct |
| 1629 | jffs2_raw_inode)) { |
| 1630 | get_fl_mem((u32)part->offset + ofs, |
| 1631 | buf_len, buf); |
| 1632 | buf_ofs = ofs; |
| 1633 | node = (void *)buf; |
| 1634 | } |
| 1635 | if (!inode_crc((struct jffs2_raw_inode *) node)) |
| 1636 | break; |
| 1637 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1638 | if (insert_node(&pL->frag, (u32) part->offset + |
Ilya Yanok | a87011e | 2009-08-12 16:42:48 +0400 | [diff] [blame] | 1639 | ofs) == NULL) { |
| 1640 | free(buf); |
| 1641 | jffs2_free_cache(part); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1642 | return 0; |
Ilya Yanok | a87011e | 2009-08-12 16:42:48 +0400 | [diff] [blame] | 1643 | } |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1644 | if (max_totlen < node->totlen) |
| 1645 | max_totlen = node->totlen; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1646 | break; |
| 1647 | case JFFS2_NODETYPE_DIRENT: |
| 1648 | if (buf_ofs + buf_len < ofs + sizeof(struct |
| 1649 | jffs2_raw_dirent) + |
| 1650 | ((struct |
| 1651 | jffs2_raw_dirent *) |
| 1652 | node)->nsize) { |
| 1653 | get_fl_mem((u32)part->offset + ofs, |
| 1654 | buf_len, buf); |
| 1655 | buf_ofs = ofs; |
| 1656 | node = (void *)buf; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1657 | } |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1658 | |
| 1659 | if (!dirent_crc((struct jffs2_raw_dirent *) |
| 1660 | node) || |
| 1661 | !dirent_name_crc( |
| 1662 | (struct |
| 1663 | jffs2_raw_dirent *) |
| 1664 | node)) |
| 1665 | break; |
wdenk | 7ad5e4c | 2004-04-25 15:41:35 +0000 | [diff] [blame] | 1666 | if (! (counterN%100)) |
wdenk | 42c0547 | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1667 | puts ("\b\b. "); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1668 | if (insert_node(&pL->dir, (u32) part->offset + |
Ilya Yanok | a87011e | 2009-08-12 16:42:48 +0400 | [diff] [blame] | 1669 | ofs) == NULL) { |
| 1670 | free(buf); |
| 1671 | jffs2_free_cache(part); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1672 | return 0; |
Ilya Yanok | a87011e | 2009-08-12 16:42:48 +0400 | [diff] [blame] | 1673 | } |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1674 | if (max_totlen < node->totlen) |
| 1675 | max_totlen = node->totlen; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1676 | counterN++; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1677 | break; |
| 1678 | case JFFS2_NODETYPE_CLEANMARKER: |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1679 | if (node->totlen != sizeof(struct jffs2_unknown_node)) |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1680 | printf("OOPS Cleanmarker has bad size " |
Wolfgang Denk | 509cd07 | 2008-07-14 15:06:35 +0200 | [diff] [blame] | 1681 | "%d != %zu\n", |
| 1682 | node->totlen, |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1683 | sizeof(struct jffs2_unknown_node)); |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1684 | break; |
| 1685 | case JFFS2_NODETYPE_PADDING: |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 1686 | if (node->totlen < sizeof(struct jffs2_unknown_node)) |
| 1687 | printf("OOPS Padding has bad size " |
Wolfgang Denk | 509cd07 | 2008-07-14 15:06:35 +0200 | [diff] [blame] | 1688 | "%d < %zu\n", |
| 1689 | node->totlen, |
wdenk | 2c9b05d | 2003-09-10 22:30:53 +0000 | [diff] [blame] | 1690 | sizeof(struct jffs2_unknown_node)); |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1691 | break; |
Ilya Yanok | a933bd6 | 2008-11-13 19:49:35 +0300 | [diff] [blame] | 1692 | case JFFS2_NODETYPE_SUMMARY: |
| 1693 | break; |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1694 | default: |
Wolfgang Denk | 509cd07 | 2008-07-14 15:06:35 +0200 | [diff] [blame] | 1695 | printf("Unknown node type: %x len %d offset 0x%x\n", |
| 1696 | node->nodetype, |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1697 | node->totlen, ofs); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1698 | } |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1699 | ofs += ((node->totlen + 3) & ~3); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1700 | counterF++; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1701 | } |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1702 | } |
| 1703 | |
Ilya Yanok | ddb0269 | 2008-11-13 19:49:33 +0300 | [diff] [blame] | 1704 | free(buf); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1705 | putstr("\b\b done.\r\n"); /* close off the dots */ |
Ilya Yanok | e7fd671 | 2008-11-13 19:49:34 +0300 | [diff] [blame] | 1706 | |
| 1707 | /* We don't care if malloc failed - then each read operation will |
| 1708 | * allocate its own buffer as necessary (NAND) or will read directly |
| 1709 | * from flash (NOR). |
| 1710 | */ |
| 1711 | pL->readbuf = malloc(max_totlen); |
| 1712 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1713 | /* turn the lcd back on. */ |
| 1714 | /* splash(); */ |
| 1715 | |
| 1716 | #if 0 |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1717 | putLabeledWord("dir entries = ", pL->dir.listCount); |
| 1718 | putLabeledWord("frag entries = ", pL->frag.listCount); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1719 | putLabeledWord("+4 increments = ", counter4); |
| 1720 | putLabeledWord("+file_offset increments = ", counterF); |
| 1721 | |
| 1722 | #endif |
| 1723 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1724 | #ifdef DEBUG_DIRENTS |
| 1725 | dump_dirents(pL); |
| 1726 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1727 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1728 | #ifdef DEBUG_FRAGMENTS |
| 1729 | dump_fragments(pL); |
| 1730 | #endif |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1731 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1732 | /* give visual feedback that we are done scanning the flash */ |
| 1733 | led_blink(0x0, 0x0, 0x1, 0x1); /* off, forever, on 100ms, off 100ms */ |
| 1734 | return 1; |
| 1735 | } |
| 1736 | |
| 1737 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1738 | static u32 |
| 1739 | jffs2_1pass_fill_info(struct b_lists * pL, struct b_jffs2_info * piL) |
| 1740 | { |
| 1741 | struct b_node *b; |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1742 | struct jffs2_raw_inode ojNode; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1743 | struct jffs2_raw_inode *jNode; |
| 1744 | int i; |
| 1745 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1746 | for (i = 0; i < JFFS2_NUM_COMPR; i++) { |
| 1747 | piL->compr_info[i].num_frags = 0; |
| 1748 | piL->compr_info[i].compr_sum = 0; |
| 1749 | piL->compr_info[i].decompr_sum = 0; |
| 1750 | } |
| 1751 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1752 | b = pL->frag.listHead; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1753 | while (b) { |
wdenk | 8886a66 | 2004-04-18 19:43:36 +0000 | [diff] [blame] | 1754 | jNode = (struct jffs2_raw_inode *) get_fl_mem(b->offset, |
| 1755 | sizeof(ojNode), &ojNode); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1756 | if (jNode->compr < JFFS2_NUM_COMPR) { |
| 1757 | piL->compr_info[jNode->compr].num_frags++; |
| 1758 | piL->compr_info[jNode->compr].compr_sum += jNode->csize; |
| 1759 | piL->compr_info[jNode->compr].decompr_sum += jNode->dsize; |
| 1760 | } |
| 1761 | b = b->next; |
| 1762 | } |
| 1763 | return 0; |
| 1764 | } |
| 1765 | |
| 1766 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1767 | static struct b_lists * |
| 1768 | jffs2_get_list(struct part_info * part, const char *who) |
| 1769 | { |
Wolfgang Denk | 47f5779 | 2005-08-08 01:03:24 +0200 | [diff] [blame] | 1770 | /* copy requested part_info struct pointer to global location */ |
| 1771 | current_part = part; |
| 1772 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1773 | if (jffs2_1pass_rescan_needed(part)) { |
| 1774 | if (!jffs2_1pass_build_lists(part)) { |
| 1775 | printf("%s: Failed to scan JFFSv2 file structure\n", who); |
| 1776 | return NULL; |
| 1777 | } |
| 1778 | } |
| 1779 | return (struct b_lists *)part->jffs2_priv; |
| 1780 | } |
| 1781 | |
| 1782 | |
| 1783 | /* Print directory / file contents */ |
| 1784 | u32 |
| 1785 | jffs2_1pass_ls(struct part_info * part, const char *fname) |
| 1786 | { |
| 1787 | struct b_lists *pl; |
Wolfgang Denk | 79117cd | 2005-08-16 09:32:45 +0200 | [diff] [blame] | 1788 | long ret = 1; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1789 | u32 inode; |
| 1790 | |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1791 | if (! (pl = jffs2_get_list(part, "ls"))) |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1792 | return 0; |
| 1793 | |
| 1794 | if (! (inode = jffs2_1pass_search_list_inodes(pl, fname, 1))) { |
| 1795 | putstr("ls: Failed to scan jffs2 file structure\r\n"); |
| 1796 | return 0; |
| 1797 | } |
wdenk | 7ad5e4c | 2004-04-25 15:41:35 +0000 | [diff] [blame] | 1798 | |
| 1799 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1800 | #if 0 |
| 1801 | putLabeledWord("found file at inode = ", inode); |
| 1802 | putLabeledWord("read_inode returns = ", ret); |
| 1803 | #endif |
wdenk | 7ad5e4c | 2004-04-25 15:41:35 +0000 | [diff] [blame] | 1804 | |
| 1805 | return ret; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1806 | } |
| 1807 | |
| 1808 | |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1809 | /* Load a file from flash into memory. fname can be a full path */ |
| 1810 | u32 |
| 1811 | jffs2_1pass_load(char *dest, struct part_info * part, const char *fname) |
| 1812 | { |
| 1813 | |
| 1814 | struct b_lists *pl; |
Wolfgang Denk | 79117cd | 2005-08-16 09:32:45 +0200 | [diff] [blame] | 1815 | long ret = 1; |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1816 | u32 inode; |
| 1817 | |
| 1818 | if (! (pl = jffs2_get_list(part, "load"))) |
| 1819 | return 0; |
| 1820 | |
| 1821 | if (! (inode = jffs2_1pass_search_inode(pl, fname, 1))) { |
| 1822 | putstr("load: Failed to find inode\r\n"); |
| 1823 | return 0; |
| 1824 | } |
| 1825 | |
| 1826 | /* Resolve symlinks */ |
| 1827 | if (! (inode = jffs2_1pass_resolve_inode(pl, inode))) { |
| 1828 | putstr("load: Failed to resolve inode structure\r\n"); |
| 1829 | return 0; |
| 1830 | } |
| 1831 | |
| 1832 | if ((ret = jffs2_1pass_read_inode(pl, inode, dest)) < 0) { |
| 1833 | putstr("load: Failed to read inode\r\n"); |
| 1834 | return 0; |
| 1835 | } |
| 1836 | |
| 1837 | DEBUGF ("load: loaded '%s' to 0x%lx (%ld bytes)\n", fname, |
| 1838 | (unsigned long) dest, ret); |
| 1839 | return ret; |
| 1840 | } |
| 1841 | |
| 1842 | /* Return information about the fs on this partition */ |
| 1843 | u32 |
| 1844 | jffs2_1pass_info(struct part_info * part) |
| 1845 | { |
| 1846 | struct b_jffs2_info info; |
| 1847 | struct b_lists *pl; |
| 1848 | int i; |
| 1849 | |
| 1850 | if (! (pl = jffs2_get_list(part, "info"))) |
| 1851 | return 0; |
| 1852 | |
| 1853 | jffs2_1pass_fill_info(pl, &info); |
wdenk | 6b58f33 | 2003-03-14 20:47:52 +0000 | [diff] [blame] | 1854 | for (i = 0; i < JFFS2_NUM_COMPR; i++) { |
wdenk | 42c0547 | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1855 | printf ("Compression: %s\n" |
| 1856 | "\tfrag count: %d\n" |
| 1857 | "\tcompressed sum: %d\n" |
| 1858 | "\tuncompressed sum: %d\n", |
| 1859 | compr_names[i], |
| 1860 | info.compr_info[i].num_frags, |
| 1861 | info.compr_info[i].compr_sum, |
| 1862 | info.compr_info[i].decompr_sum); |
wdenk | fe8c280 | 2002-11-03 00:38:21 +0000 | [diff] [blame] | 1863 | } |
| 1864 | return 1; |
| 1865 | } |