+++ /dev/null
-#include <common.h>
-
-#include <malloc.h>
-#include <linux/stat.h>
-#include <linux/time.h>
-
-#include <jffs2/jffs2.h>
-#include <jffs2/jffs2_1pass.h>
-#include <nand.h>
-
-#include "jffs2_nand_private.h"
-
-#define NODE_CHUNK 1024 /* size of memory allocation chunk in b_nodes */
-
-/* Debugging switches */
-#undef DEBUG_DIRENTS /* print directory entry list after scan */
-#undef DEBUG_FRAGMENTS /* print fragment list after scan */
-#undef DEBUG /* enable debugging messages */
-
-#ifdef DEBUG
-# define DEBUGF(fmt,args...) printf(fmt ,##args)
-#else
-# define DEBUGF(fmt,args...)
-#endif
-
-static struct mtd_info *mtd;
-
-/* Compression names */
-static char *compr_names[] = {
- "NONE",
- "ZERO",
- "RTIME",
- "RUBINMIPS",
- "COPY",
- "DYNRUBIN",
- "ZLIB",
-#if defined(CONFIG_JFFS2_LZO)
- "LZO",
-#endif
-};
-
-/* Spinning wheel */
-static char spinner[] = { '|', '/', '-', '\\' };
-
-/* Memory management */
-struct mem_block {
- unsigned index;
- struct mem_block *next;
- char nodes[0];
-};
-
-static void
-free_nodes(struct b_list *list)
-{
- while (list->listMemBase != NULL) {
- struct mem_block *next = list->listMemBase->next;
- free(list->listMemBase);
- list->listMemBase = next;
- }
-}
-
-static struct b_node *
-add_node(struct b_list *list, int size)
-{
- u32 index = 0;
- struct mem_block *memBase;
- struct b_node *b;
-
- memBase = list->listMemBase;
- if (memBase != NULL)
- index = memBase->index;
-
- if (memBase == NULL || index >= NODE_CHUNK) {
- /* we need more space before we continue */
- memBase = mmalloc(sizeof(struct mem_block) + NODE_CHUNK * size);
- if (memBase == NULL) {
- putstr("add_node: malloc failed\n");
- return NULL;
- }
- memBase->next = list->listMemBase;
- index = 0;
- }
- /* now we have room to add it. */
- b = (struct b_node *)&memBase->nodes[size * index];
- index ++;
-
- memBase->index = index;
- list->listMemBase = memBase;
- list->listCount++;
- return b;
-}
-
-static struct b_node *
-insert_node(struct b_list *list, struct b_node *new)
-{
-#ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS
- struct b_node *b, *prev;
-
- if (list->listTail != NULL && list->listCompare(new, list->listTail))
- prev = list->listTail;
- else if (list->listLast != NULL && list->listCompare(new, list->listLast))
- prev = list->listLast;
- else
- prev = NULL;
-
- for (b = (prev ? prev->next : list->listHead);
- b != NULL && list->listCompare(new, b);
- prev = b, b = b->next) {
- list->listLoops++;
- }
- if (b != NULL)
- list->listLast = prev;
-
- if (b != NULL) {
- new->next = b;
- if (prev != NULL)
- prev->next = new;
- else
- list->listHead = new;
- } else
-#endif
- {
- new->next = (struct b_node *) NULL;
- if (list->listTail != NULL) {
- list->listTail->next = new;
- list->listTail = new;
- } else {
- list->listTail = list->listHead = new;
- }
- }
-
- return new;
-}
-
-static struct b_node *
-insert_inode(struct b_list *list, struct jffs2_raw_inode *node, u32 offset)
-{
- struct b_inode *new;
-
- if (!(new = (struct b_inode *)add_node(list, sizeof(struct b_inode)))) {
- putstr("add_node failed!\r\n");
- return NULL;
- }
- new->offset = offset;
- new->version = node->version;
- new->ino = node->ino;
- new->isize = node->isize;
- new->csize = node->csize;
-
- return insert_node(list, (struct b_node *)new);
-}
-
-static struct b_node *
-insert_dirent(struct b_list *list, struct jffs2_raw_dirent *node, u32 offset)
-{
- struct b_dirent *new;
-
- if (!(new = (struct b_dirent *)add_node(list, sizeof(struct b_dirent)))) {
- putstr("add_node failed!\r\n");
- return NULL;
- }
- new->offset = offset;
- new->version = node->version;
- new->pino = node->pino;
- new->ino = node->ino;
- new->nhash = full_name_hash(node->name, node->nsize);
- new->nsize = node->nsize;
- new->type = node->type;
-
- return insert_node(list, (struct b_node *)new);
-}
-
-#ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS
-/* Sort data entries with the latest version last, so that if there
- * is overlapping data the latest version will be used.
- */
-static int compare_inodes(struct b_node *new, struct b_node *old)
-{
- struct jffs2_raw_inode ojNew;
- struct jffs2_raw_inode ojOld;
- struct jffs2_raw_inode *jNew =
- (struct jffs2_raw_inode *)get_fl_mem(new->offset, sizeof(ojNew), &ojNew);
- struct jffs2_raw_inode *jOld =
- (struct jffs2_raw_inode *)get_fl_mem(old->offset, sizeof(ojOld), &ojOld);
-
- return jNew->version > jOld->version;
-}
-
-/* Sort directory entries so all entries in the same directory
- * with the same name are grouped together, with the latest version
- * last. This makes it easy to eliminate all but the latest version
- * by marking the previous version dead by setting the inode to 0.
- */
-static int compare_dirents(struct b_node *new, struct b_node *old)
-{
- struct jffs2_raw_dirent ojNew;
- struct jffs2_raw_dirent ojOld;
- struct jffs2_raw_dirent *jNew =
- (struct jffs2_raw_dirent *)get_fl_mem(new->offset, sizeof(ojNew), &ojNew);
- struct jffs2_raw_dirent *jOld =
- (struct jffs2_raw_dirent *)get_fl_mem(old->offset, sizeof(ojOld), &ojOld);
- int cmp;
-
- /* ascending sort by pino */
- if (jNew->pino != jOld->pino)
- return jNew->pino > jOld->pino;
-
- /* pino is the same, so use ascending sort by nsize, so
- * we don't do strncmp unless we really must.
- */
- if (jNew->nsize != jOld->nsize)
- return jNew->nsize > jOld->nsize;
-
- /* length is also the same, so use ascending sort by name
- */
- cmp = strncmp(jNew->name, jOld->name, jNew->nsize);
- if (cmp != 0)
- return cmp > 0;
-
- /* we have duplicate names in this directory, so use ascending
- * sort by version
- */
- if (jNew->version > jOld->version) {
- /* since jNew is newer, we know jOld is not valid, so
- * mark it with inode 0 and it will not be used
- */
- jOld->ino = 0;
- return 1;
- }
-
- return 0;
-}
-#endif
-
-static u32
-jffs_init_1pass_list(struct part_info *part)
-{
- struct b_lists *pL;
-
- if (part->jffs2_priv != NULL) {
- pL = (struct b_lists *)part->jffs2_priv;
- free_nodes(&pL->frag);
- free_nodes(&pL->dir);
- free(pL);
- }
- if (NULL != (part->jffs2_priv = malloc(sizeof(struct b_lists)))) {
- pL = (struct b_lists *)part->jffs2_priv;
-
- memset(pL, 0, sizeof(*pL));
-#ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS
- pL->dir.listCompare = compare_dirents;
- pL->frag.listCompare = compare_inodes;
-#endif
- }
- return 0;
-}
-
-/* find the inode from the slashless name given a parent */
-static long
-jffs2_1pass_read_inode(struct b_lists *pL, u32 ino, char *dest,
- struct stat *stat)
-{
- struct b_inode *jNode;
- u32 totalSize = 0;
- u32 latestVersion = 0;
- long ret;
-
-#ifdef CONFIG_SYS_JFFS2_SORT_FRAGMENTS
- /* Find file size before loading any data, so fragments that
- * start past the end of file can be ignored. A fragment
- * that is partially in the file is loaded, so extra data may
- * be loaded up to the next 4K boundary above the file size.
- * This shouldn't cause trouble when loading kernel images, so
- * we will live with it.
- */
- for (jNode = (struct b_inode *)pL->frag.listHead; jNode; jNode = jNode->next) {
- if ((ino == jNode->ino)) {
- /* get actual file length from the newest node */
- if (jNode->version >= latestVersion) {
- totalSize = jNode->isize;
- latestVersion = jNode->version;
- }
- }
- }
-#endif
-
- for (jNode = (struct b_inode *)pL->frag.listHead; jNode; jNode = jNode->next) {
- if ((ino != jNode->ino))
- continue;
-#ifndef CONFIG_SYS_JFFS2_SORT_FRAGMENTS
- /* get actual file length from the newest node */
- if (jNode->version >= latestVersion) {
- totalSize = jNode->isize;
- latestVersion = jNode->version;
- }
-#endif
- if (dest || stat) {
- char *src, *dst;
- char data[4096 + sizeof(struct jffs2_raw_inode)];
- struct jffs2_raw_inode *inode;
- size_t len;
-
- inode = (struct jffs2_raw_inode *)&data;
- len = sizeof(struct jffs2_raw_inode);
- if (dest)
- len += jNode->csize;
- nand_read(mtd, jNode->offset, &len, inode);
- /* ignore data behind latest known EOF */
- if (inode->offset > totalSize)
- continue;
-
- if (stat) {
- stat->st_mtime = inode->mtime;
- stat->st_mode = inode->mode;
- stat->st_ino = inode->ino;
- stat->st_size = totalSize;
- }
-
- if (!dest)
- continue;
-
- src = ((char *) inode) + sizeof(struct jffs2_raw_inode);
- dst = (char *) (dest + inode->offset);
-
- switch (inode->compr) {
- case JFFS2_COMPR_NONE:
- ret = 0;
- memcpy(dst, src, inode->dsize);
- break;
- case JFFS2_COMPR_ZERO:
- ret = 0;
- memset(dst, 0, inode->dsize);
- break;
- case JFFS2_COMPR_RTIME:
- ret = 0;
- rtime_decompress(src, dst, inode->csize, inode->dsize);
- break;
- case JFFS2_COMPR_DYNRUBIN:
- /* this is slow but it works */
- ret = 0;
- dynrubin_decompress(src, dst, inode->csize, inode->dsize);
- break;
- case JFFS2_COMPR_ZLIB:
- ret = zlib_decompress(src, dst, inode->csize, inode->dsize);
- break;
-#if defined(CONFIG_JFFS2_LZO)
- case JFFS2_COMPR_LZO:
- ret = lzo_decompress(src, dst, inode->csize, inode->dsize);
- break;
-#endif
- default:
- /* unknown */
- putLabeledWord("UNKNOWN COMPRESSION METHOD = ", inode->compr);
- return -1;
- }
- }
- }
-
- return totalSize;
-}
-
-/* find the inode from the slashless name given a parent */
-static u32
-jffs2_1pass_find_inode(struct b_lists * pL, const char *name, u32 pino)
-{
- struct b_dirent *jDir;
- int len = strlen(name); /* name is assumed slash free */
- unsigned int nhash = full_name_hash(name, len);
- u32 version = 0;
- u32 inode = 0;
-
- /* we need to search all and return the inode with the highest version */
- for (jDir = (struct b_dirent *)pL->dir.listHead; jDir; jDir = jDir->next) {
- if ((pino == jDir->pino) && (jDir->ino) && /* 0 for unlink */
- (len == jDir->nsize) && (nhash == jDir->nhash)) {
- /* TODO: compare name */
- if (jDir->version < version)
- continue;
-
- if (jDir->version == version && inode != 0) {
- /* I'm pretty sure this isn't legal */
- putstr(" ** ERROR ** ");
-/* putnstr(jDir->name, jDir->nsize); */
-/* putLabeledWord(" has dup version =", version); */
- }
- inode = jDir->ino;
- version = jDir->version;
- }
- }
- return inode;
-}
-
-char *mkmodestr(unsigned long mode, char *str)
-{
- static const char *l = "xwr";
- int mask = 1, i;
- char c;
-
- switch (mode & S_IFMT) {
- case S_IFDIR: str[0] = 'd'; break;
- case S_IFBLK: str[0] = 'b'; break;
- case S_IFCHR: str[0] = 'c'; break;
- case S_IFIFO: str[0] = 'f'; break;
- case S_IFLNK: str[0] = 'l'; break;
- case S_IFSOCK: str[0] = 's'; break;
- case S_IFREG: str[0] = '-'; break;
- default: str[0] = '?';
- }
-
- for(i = 0; i < 9; i++) {
- c = l[i%3];
- str[9-i] = (mode & mask)?c:'-';
- mask = mask<<1;
- }
-
- if(mode & S_ISUID) str[3] = (mode & S_IXUSR)?'s':'S';
- if(mode & S_ISGID) str[6] = (mode & S_IXGRP)?'s':'S';
- if(mode & S_ISVTX) str[9] = (mode & S_IXOTH)?'t':'T';
- str[10] = '\0';
- return str;
-}
-
-static inline void dump_stat(struct stat *st, const char *name)
-{
- char str[20];
- char s[64], *p;
-
- if (st->st_mtime == (time_t)(-1)) /* some ctimes really hate -1 */
- st->st_mtime = 1;
-
- ctime_r(&st->st_mtime, s/*,64*/); /* newlib ctime doesn't have buflen */
-
- if ((p = strchr(s,'\n')) != NULL) *p = '\0';
- if ((p = strchr(s,'\r')) != NULL) *p = '\0';
-
-/*
- printf("%6lo %s %8ld %s %s\n", st->st_mode, mkmodestr(st->st_mode, str),
- st->st_size, s, name);
-*/
-
- printf(" %s %8ld %s %s", mkmodestr(st->st_mode,str), st->st_size, s, name);
-}
-
-static inline int
-dump_inode(struct b_lists *pL, struct b_dirent *d, struct b_inode *i)
-{
- char fname[JFFS2_MAX_NAME_LEN + 1];
- struct stat st;
- size_t len;
-
- if(!d || !i) return -1;
- len = d->nsize;
- nand_read(mtd, d->offset + sizeof(struct jffs2_raw_dirent),
- &len, &fname);
- fname[d->nsize] = '\0';
-
- memset(&st, 0, sizeof(st));
-
- jffs2_1pass_read_inode(pL, i->ino, NULL, &st);
-
- dump_stat(&st, fname);
-/* FIXME
- if (d->type == DT_LNK) {
- unsigned char *src = (unsigned char *) (&i[1]);
- putstr(" -> ");
- putnstr(src, (int)i->dsize);
- }
-*/
- putstr("\r\n");
-
- return 0;
-}
-
-/* list inodes with the given pino */
-static u32
-jffs2_1pass_list_inodes(struct b_lists * pL, u32 pino)
-{
- struct b_dirent *jDir;
- u32 i_version = 0;
-
- for (jDir = (struct b_dirent *)pL->dir.listHead; jDir; jDir = jDir->next) {
- if ((pino == jDir->pino) && (jDir->ino)) { /* ino=0 -> unlink */
- struct b_inode *jNode = (struct b_inode *)pL->frag.listHead;
- struct b_inode *i = NULL;
-
- while (jNode) {
- if (jNode->ino == jDir->ino && jNode->version >= i_version) {
- i_version = jNode->version;
- i = jNode;
- }
- jNode = jNode->next;
- }
- dump_inode(pL, jDir, i);
- }
- }
- return pino;
-}
-
-static u32
-jffs2_1pass_search_inode(struct b_lists * pL, const char *fname, u32 pino)
-{
- int i;
- char tmp[256];
- char working_tmp[256];
- char *c;
-
- /* discard any leading slash */
- i = 0;
- while (fname[i] == '/')
- i++;
- strcpy(tmp, &fname[i]);
-
- while ((c = (char *) strchr(tmp, '/'))) /* we are still dired searching */
- {
- strncpy(working_tmp, tmp, c - tmp);
- working_tmp[c - tmp] = '\0';
-#if 0
- putstr("search_inode: tmp = ");
- putstr(tmp);
- putstr("\r\n");
- putstr("search_inode: wtmp = ");
- putstr(working_tmp);
- putstr("\r\n");
- putstr("search_inode: c = ");
- putstr(c);
- putstr("\r\n");
-#endif
- for (i = 0; i < strlen(c) - 1; i++)
- tmp[i] = c[i + 1];
- tmp[i] = '\0';
-#if 0
- putstr("search_inode: post tmp = ");
- putstr(tmp);
- putstr("\r\n");
-#endif
-
- if (!(pino = jffs2_1pass_find_inode(pL, working_tmp, pino))) {
- putstr("find_inode failed for name=");
- putstr(working_tmp);
- putstr("\r\n");
- return 0;
- }
- }
- /* this is for the bare filename, directories have already been mapped */
- if (!(pino = jffs2_1pass_find_inode(pL, tmp, pino))) {
- putstr("find_inode failed for name=");
- putstr(tmp);
- putstr("\r\n");
- return 0;
- }
- return pino;
-
-}
-
-static u32
-jffs2_1pass_resolve_inode(struct b_lists * pL, u32 ino)
-{
- struct b_dirent *jDir;
- struct b_inode *jNode;
- u8 jDirFoundType = 0;
- u32 jDirFoundIno = 0;
- u32 jDirFoundPino = 0;
- char tmp[JFFS2_MAX_NAME_LEN + 1];
- u32 version = 0;
- u32 pino;
-
- /* we need to search all and return the inode with the highest version */
- for (jDir = (struct b_dirent *)pL->dir.listHead; jDir; jDir = jDir->next) {
- if (ino == jDir->ino) {
- if (jDir->version < version)
- continue;
-
- if (jDir->version == version && jDirFoundType) {
- /* I'm pretty sure this isn't legal */
- putstr(" ** ERROR ** ");
-/* putnstr(jDir->name, jDir->nsize); */
-/* putLabeledWord(" has dup version (resolve) = ", */
-/* version); */
- }
-
- jDirFoundType = jDir->type;
- jDirFoundIno = jDir->ino;
- jDirFoundPino = jDir->pino;
- version = jDir->version;
- }
- }
- /* now we found the right entry again. (shoulda returned inode*) */
- if (jDirFoundType != DT_LNK)
- return jDirFoundIno;
-
- /* it's a soft link so we follow it again. */
- for (jNode = (struct b_inode *)pL->frag.listHead; jNode; jNode = jNode->next) {
- if (jNode->ino == jDirFoundIno) {
- size_t len = jNode->csize;
- nand_read(mtd,
- jNode->offset + sizeof(struct jffs2_raw_inode),
- &len, &tmp);
- tmp[jNode->csize] = '\0';
- break;
- }
- }
- /* ok so the name of the new file to find is in tmp */
- /* if it starts with a slash it is root based else shared dirs */
- if (tmp[0] == '/')
- pino = 1;
- else
- pino = jDirFoundPino;
-
- return jffs2_1pass_search_inode(pL, tmp, pino);
-}
-
-static u32
-jffs2_1pass_search_list_inodes(struct b_lists * pL, const char *fname, u32 pino)
-{
- int i;
- char tmp[256];
- char working_tmp[256];
- char *c;
-
- /* discard any leading slash */
- i = 0;
- while (fname[i] == '/')
- i++;
- strcpy(tmp, &fname[i]);
- working_tmp[0] = '\0';
- while ((c = (char *) strchr(tmp, '/'))) /* we are still dired searching */
- {
- strncpy(working_tmp, tmp, c - tmp);
- working_tmp[c - tmp] = '\0';
- for (i = 0; i < strlen(c) - 1; i++)
- tmp[i] = c[i + 1];
- tmp[i] = '\0';
- /* only a failure if we arent looking at top level */
- if (!(pino = jffs2_1pass_find_inode(pL, working_tmp, pino)) &&
- (working_tmp[0])) {
- putstr("find_inode failed for name=");
- putstr(working_tmp);
- putstr("\r\n");
- return 0;
- }
- }
-
- if (tmp[0] && !(pino = jffs2_1pass_find_inode(pL, tmp, pino))) {
- putstr("find_inode failed for name=");
- putstr(tmp);
- putstr("\r\n");
- return 0;
- }
- /* this is for the bare filename, directories have already been mapped */
- if (!(pino = jffs2_1pass_list_inodes(pL, pino))) {
- putstr("find_inode failed for name=");
- putstr(tmp);
- putstr("\r\n");
- return 0;
- }
- return pino;
-
-}
-
-unsigned char
-jffs2_1pass_rescan_needed(struct part_info *part)
-{
- struct b_node *b;
- struct jffs2_unknown_node onode;
- struct jffs2_unknown_node *node;
- struct b_lists *pL = (struct b_lists *)part->jffs2_priv;
-
- if (part->jffs2_priv == 0){
- DEBUGF ("rescan: First time in use\n");
- return 1;
- }
- /* if we have no list, we need to rescan */
- if (pL->frag.listCount == 0) {
- DEBUGF ("rescan: fraglist zero\n");
- return 1;
- }
-
- /* or if we are scanning a new partition */
- if (pL->partOffset != part->offset) {
- DEBUGF ("rescan: different partition\n");
- return 1;
- }
-
- /* FIXME */
-#if 0
- /* but suppose someone reflashed a partition at the same offset... */
- b = pL->dir.listHead;
- while (b) {
- node = (struct jffs2_unknown_node *) get_fl_mem(b->offset,
- sizeof(onode), &onode);
- if (node->nodetype != JFFS2_NODETYPE_DIRENT) {
- DEBUGF ("rescan: fs changed beneath me? (%lx)\n",
- (unsigned long) b->offset);
- return 1;
- }
- b = b->next;
- }
-#endif
- return 0;
-}
-
-#ifdef DEBUG_FRAGMENTS
-static void
-dump_fragments(struct b_lists *pL)
-{
- struct b_node *b;
- struct jffs2_raw_inode ojNode;
- struct jffs2_raw_inode *jNode;
-
- putstr("\r\n\r\n******The fragment Entries******\r\n");
- b = pL->frag.listHead;
- while (b) {
- jNode = (struct jffs2_raw_inode *) get_fl_mem(b->offset,
- sizeof(ojNode), &ojNode);
- putLabeledWord("\r\n\tbuild_list: FLASH_OFFSET = ", b->offset);
- putLabeledWord("\tbuild_list: totlen = ", jNode->totlen);
- putLabeledWord("\tbuild_list: inode = ", jNode->ino);
- putLabeledWord("\tbuild_list: version = ", jNode->version);
- putLabeledWord("\tbuild_list: isize = ", jNode->isize);
- putLabeledWord("\tbuild_list: atime = ", jNode->atime);
- putLabeledWord("\tbuild_list: offset = ", jNode->offset);
- putLabeledWord("\tbuild_list: csize = ", jNode->csize);
- putLabeledWord("\tbuild_list: dsize = ", jNode->dsize);
- putLabeledWord("\tbuild_list: compr = ", jNode->compr);
- putLabeledWord("\tbuild_list: usercompr = ", jNode->usercompr);
- putLabeledWord("\tbuild_list: flags = ", jNode->flags);
- putLabeledWord("\tbuild_list: offset = ", b->offset); /* FIXME: ? [RS] */
- b = b->next;
- }
-}
-#endif
-
-#ifdef DEBUG_DIRENTS
-static void
-dump_dirents(struct b_lists *pL)
-{
- struct b_node *b;
- struct jffs2_raw_dirent *jDir;
-
- putstr("\r\n\r\n******The directory Entries******\r\n");
- b = pL->dir.listHead;
- while (b) {
- jDir = (struct jffs2_raw_dirent *) get_node_mem(b->offset);
- putstr("\r\n");
- putnstr(jDir->name, jDir->nsize);
- putLabeledWord("\r\n\tbuild_list: magic = ", jDir->magic);
- putLabeledWord("\tbuild_list: nodetype = ", jDir->nodetype);
- putLabeledWord("\tbuild_list: hdr_crc = ", jDir->hdr_crc);
- putLabeledWord("\tbuild_list: pino = ", jDir->pino);
- putLabeledWord("\tbuild_list: version = ", jDir->version);
- putLabeledWord("\tbuild_list: ino = ", jDir->ino);
- putLabeledWord("\tbuild_list: mctime = ", jDir->mctime);
- putLabeledWord("\tbuild_list: nsize = ", jDir->nsize);
- putLabeledWord("\tbuild_list: type = ", jDir->type);
- putLabeledWord("\tbuild_list: node_crc = ", jDir->node_crc);
- putLabeledWord("\tbuild_list: name_crc = ", jDir->name_crc);
- putLabeledWord("\tbuild_list: offset = ", b->offset); /* FIXME: ? [RS] */
- b = b->next;
- put_fl_mem(jDir);
- }
-}
-#endif
-
-static int
-jffs2_fill_scan_buf(struct mtd_info *mtd, unsigned char *buf,
- unsigned ofs, unsigned len)
-{
- int ret;
- unsigned olen;
-
- olen = len;
- ret = nand_read(mtd, ofs, &olen, buf);
- if (ret) {
- printf("nand_read(0x%x bytes from 0x%x) returned %d\n", len, ofs, ret);
- return ret;
- }
- if (olen < len) {
- printf("Read at 0x%x gave only 0x%x bytes\n", ofs, olen);
- return -1;
- }
- return 0;
-}
-
-#define EMPTY_SCAN_SIZE 1024
-static u32
-jffs2_1pass_build_lists(struct part_info * part)
-{
- struct b_lists *pL;
- struct jffs2_unknown_node *node;
- unsigned nr_blocks, sectorsize, ofs, offset;
- char *buf;
- int i;
- u32 counter = 0;
- u32 counter4 = 0;
- u32 counterF = 0;
- u32 counterN = 0;
-
- struct mtdids *id = part->dev->id;
- mtd = get_nand_dev_by_index(id->num);
- if (!mtd) {
- pr_err("\nno NAND devices available\n");
- return 0;
- }
-
- /* if we are building a list we need to refresh the cache. */
- jffs_init_1pass_list(part);
- pL = (struct b_lists *)part->jffs2_priv;
- pL->partOffset = part->offset;
- puts ("Scanning JFFS2 FS: ");
-
- sectorsize = mtd->erasesize;
- nr_blocks = part->size / sectorsize;
- buf = malloc(sectorsize);
- if (!buf)
- return 0;
-
- for (i = 0; i < nr_blocks; i++) {
- printf("\b\b%c ", spinner[counter++ % sizeof(spinner)]);
-
- offset = part->offset + i * sectorsize;
-
- if (nand_block_isbad(mtd, offset))
- continue;
-
- if (jffs2_fill_scan_buf(mtd, buf, offset, EMPTY_SCAN_SIZE))
- return 0;
-
- ofs = 0;
- /* Scan only 4KiB of 0xFF before declaring it's empty */
- while (ofs < EMPTY_SCAN_SIZE && *(uint32_t *)(&buf[ofs]) == 0xFFFFFFFF)
- ofs += 4;
- if (ofs == EMPTY_SCAN_SIZE)
- continue;
-
- if (jffs2_fill_scan_buf(mtd, buf + EMPTY_SCAN_SIZE, offset + EMPTY_SCAN_SIZE, sectorsize - EMPTY_SCAN_SIZE))
- return 0;
- offset += ofs;
-
- while (ofs < sectorsize - sizeof(struct jffs2_unknown_node)) {
- node = (struct jffs2_unknown_node *)&buf[ofs];
- if (node->magic != JFFS2_MAGIC_BITMASK || !hdr_crc(node)) {
- offset += 4;
- ofs += 4;
- counter4++;
- continue;
- }
- /* if its a fragment add it */
- if (node->nodetype == JFFS2_NODETYPE_INODE &&
- inode_crc((struct jffs2_raw_inode *) node)) {
- if (insert_inode(&pL->frag, (struct jffs2_raw_inode *) node,
- offset) == NULL) {
- return 0;
- }
- } else if (node->nodetype == JFFS2_NODETYPE_DIRENT &&
- dirent_crc((struct jffs2_raw_dirent *) node) &&
- dirent_name_crc((struct jffs2_raw_dirent *) node)) {
- if (! (counterN%100))
- puts ("\b\b. ");
- if (insert_dirent(&pL->dir, (struct jffs2_raw_dirent *) node,
- offset) == NULL) {
- return 0;
- }
- counterN++;
- } else if (node->nodetype == JFFS2_NODETYPE_CLEANMARKER) {
- if (node->totlen != sizeof(struct jffs2_unknown_node))
- printf("OOPS Cleanmarker has bad size "
- "%d != %zu\n",
- node->totlen,
- sizeof(struct jffs2_unknown_node));
- } else if (node->nodetype == JFFS2_NODETYPE_PADDING) {
- if (node->totlen < sizeof(struct jffs2_unknown_node))
- printf("OOPS Padding has bad size "
- "%d < %zu\n",
- node->totlen,
- sizeof(struct jffs2_unknown_node));
- } else {
- printf("Unknown node type: %x len %d offset 0x%x\n",
- node->nodetype,
- node->totlen, offset);
- }
- offset += ((node->totlen + 3) & ~3);
- ofs += ((node->totlen + 3) & ~3);
- counterF++;
- }
- }
-
- putstr("\b\b done.\r\n"); /* close off the dots */
-
-#if 0
- putLabeledWord("dir entries = ", pL->dir.listCount);
- putLabeledWord("frag entries = ", pL->frag.listCount);
- putLabeledWord("+4 increments = ", counter4);
- putLabeledWord("+file_offset increments = ", counterF);
-#endif
-
-#ifdef DEBUG_DIRENTS
- dump_dirents(pL);
-#endif
-
-#ifdef DEBUG_FRAGMENTS
- dump_fragments(pL);
-#endif
-
- /* give visual feedback that we are done scanning the flash */
- led_blink(0x0, 0x0, 0x1, 0x1); /* off, forever, on 100ms, off 100ms */
- free(buf);
-
- return 1;
-}
-
-
-static u32
-jffs2_1pass_fill_info(struct b_lists * pL, struct b_jffs2_info * piL)
-{
- struct b_node *b;
- struct jffs2_raw_inode ojNode;
- struct jffs2_raw_inode *jNode;
- int i;
-
- for (i = 0; i < JFFS2_NUM_COMPR; i++) {
- piL->compr_info[i].num_frags = 0;
- piL->compr_info[i].compr_sum = 0;
- piL->compr_info[i].decompr_sum = 0;
- }
-/* FIXME
- b = pL->frag.listHead;
- while (b) {
- jNode = (struct jffs2_raw_inode *) get_fl_mem(b->offset,
- sizeof(ojNode), &ojNode);
- if (jNode->compr < JFFS2_NUM_COMPR) {
- piL->compr_info[jNode->compr].num_frags++;
- piL->compr_info[jNode->compr].compr_sum += jNode->csize;
- piL->compr_info[jNode->compr].decompr_sum += jNode->dsize;
- }
- b = b->next;
- }
-*/
- return 0;
-}
-
-
-static struct b_lists *
-jffs2_get_list(struct part_info * part, const char *who)
-{
- if (jffs2_1pass_rescan_needed(part)) {
- if (!jffs2_1pass_build_lists(part)) {
- printf("%s: Failed to scan JFFSv2 file structure\n", who);
- return NULL;
- }
- }
- return (struct b_lists *)part->jffs2_priv;
-}
-
-
-/* Print directory / file contents */
-u32
-jffs2_1pass_ls(struct part_info * part, const char *fname)
-{
- struct b_lists *pl;
- long ret = 0;
- u32 inode;
-
- if (! (pl = jffs2_get_list(part, "ls")))
- return 0;
-
- if (! (inode = jffs2_1pass_search_list_inodes(pl, fname, 1))) {
- putstr("ls: Failed to scan jffs2 file structure\r\n");
- return 0;
- }
-
-#if 0
- putLabeledWord("found file at inode = ", inode);
- putLabeledWord("read_inode returns = ", ret);
-#endif
-
- return ret;
-}
-
-
-/* Load a file from flash into memory. fname can be a full path */
-u32
-jffs2_1pass_load(char *dest, struct part_info * part, const char *fname)
-{
-
- struct b_lists *pl;
- long ret = 0;
- u32 inode;
-
- if (! (pl = jffs2_get_list(part, "load")))
- return 0;
-
- if (! (inode = jffs2_1pass_search_inode(pl, fname, 1))) {
- putstr("load: Failed to find inode\r\n");
- return 0;
- }
-
- /* Resolve symlinks */
- if (! (inode = jffs2_1pass_resolve_inode(pl, inode))) {
- putstr("load: Failed to resolve inode structure\r\n");
- return 0;
- }
-
- if ((ret = jffs2_1pass_read_inode(pl, inode, dest, NULL)) < 0) {
- putstr("load: Failed to read inode\r\n");
- return 0;
- }
-
- DEBUGF ("load: loaded '%s' to 0x%lx (%ld bytes)\n", fname,
- (unsigned long) dest, ret);
- return ret;
-}
-
-/* Return information about the fs on this partition */
-u32
-jffs2_1pass_info(struct part_info * part)
-{
- struct b_jffs2_info info;
- struct b_lists *pl;
- int i;
-
- if (! (pl = jffs2_get_list(part, "info")))
- return 0;
-
- jffs2_1pass_fill_info(pl, &info);
- for (i = 0; i < JFFS2_NUM_COMPR; i++) {
- printf ("Compression: %s\n"
- "\tfrag count: %d\n"
- "\tcompressed sum: %d\n"
- "\tuncompressed sum: %d\n",
- compr_names[i],
- info.compr_info[i].num_frags,
- info.compr_info[i].compr_sum,
- info.compr_info[i].decompr_sum);
- }
- return 1;
-}
projects / u-boot.git / commitdiff