diff options
Diffstat (limited to 'fs/romfs/romfs.c')
| -rw-r--r-- | fs/romfs/romfs.c | 240 | 
1 files changed, 0 insertions, 240 deletions
| diff --git a/fs/romfs/romfs.c b/fs/romfs/romfs.c deleted file mode 100644 index 15de3e18f..000000000 --- a/fs/romfs/romfs.c +++ /dev/null @@ -1,240 +0,0 @@ -/* - * (C) Copyright 2007 Michal Simek - * - * Michal SIMEK <monstr@monstr.eu> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <malloc.h> -#include <command.h> - -#if defined(CONFIG_CMD_JFFS2) - -#include <asm/byteorder.h> -#include <linux/stat.h> -#include <jffs2/jffs2.h> -#include <jffs2/load_kernel.h> - -#undef DEBUG_ROMFS - -/* ROMFS superblock */ -struct romfs_super { -	u32 word0; -	u32 word1; -	u32 size; -	u32 checksum; -	char name[0]; -}; - -struct romfs_inode { -	u32 next; -	u32 spec; -	u32 size; -	u32 checksum; -	char name[0]; -}; - -extern flash_info_t flash_info[]; -#define PART_OFFSET(x)	(x->offset + flash_info[x->dev->id->num].start[0]) -#define ALIGN(x)	(((x) & 0xfffffff0)) -#define HEADERSIZE(name)	(0x20 + ALIGN(strlen(name))) - -static unsigned long romfs_resolve (unsigned long begin, unsigned long offset, -				unsigned long size, int raw, char *filename) -{ -	unsigned long inodeoffset = 0, nextoffset; -	struct romfs_inode *inode; -#ifdef DEBUG_ROMFS -	printf ("ROMFS_resolve: begin 0x%x, offset 0x%x, size 0x%x, raw 0x%x, \ -		filename %s\n", begin, offset, size, raw, filename); -#endif - -	while (inodeoffset < size) { -		inode = (struct romfs_inode *)(begin + offset + inodeoffset); -		offset = 0; -		nextoffset = ALIGN (inode->next); -#ifdef DEBUG_ROMFS -		printf("inode 0x%x, name %s - len 0x%x, next inode 0x%x, \ -			compare names 0x%x\n", -			inode, inode->name, strlen (inode->name), nextoffset, -			strncmp (filename, inode->name, strlen (filename))); -#endif -		if (!strncmp (filename, inode->name, strlen (inode->name))) { -			char *p = strtok (NULL, "/"); -			if (raw && (p == NULL || *p == '\0')) { -				return offset + inodeoffset; -			} -			return romfs_resolve (begin, -					inodeoffset + HEADERSIZE (inode->name), -					size, raw, p); -		} -		inodeoffset = nextoffset; -	} - -	printf ("can't find corresponding entry\n"); -	return 0; -} - -int romfs_load (char *loadoffset, struct part_info *info, char *filename) -{ -	struct romfs_inode *inode; -	struct romfs_super *sb; -	char *data; -	int pocet; -	sb = (struct romfs_super *) PART_OFFSET (info); - -	unsigned long offset; - -	offset = romfs_resolve (PART_OFFSET (info), HEADERSIZE (sb->name), -				sb->size, 1, strtok (filename, "/")); -	if (offset <= 0) -		return offset; - -	inode = (struct romfs_inode *)(PART_OFFSET (info) + offset); -	data = (char *)((int)inode + HEADERSIZE (inode->name)); -	pocet = inode->size; -	while (pocet--) { -		*loadoffset++ = *data++; -	} -	return inode->size; -} - -static int romfs_list_inode (struct part_info *info, unsigned long offset) -{ -	struct romfs_inode *inode = -			(struct romfs_inode *)(PART_OFFSET (info) + offset); -	struct romfs_inode *hardlink = NULL; -	char str[3], *data; - -/* - *	mapping		spec.info means - * 0	hard link	link destination [file header] - * 1	directory	first file's header - * 2	regular file	unused, must be zero [MBZ] - * 3	symbolic link	unused, MBZ (file data is the link content) - * 4	block device	16/16 bits major/minor number - * 5	char device		- " - - * 6	socket		unused, MBZ - * 7	fifo		unused, MBZ - */ -	char attributes[] = "hdflbcsp"; -	str[0] = attributes[inode->next & 0x7]; -	str[1] = (inode->next & 0x8) ? 'x' : '-'; -	str[2] = '\0'; - -	if ((str[0] == 'b') || (str[0] == 'c')) { -#ifdef DEBUG_ROMFS -		printf (" %s  %3d,%3d %12s 0x%08x 0x%08x", str, -			(inode->spec & 0xffff0000) >> 16, -			inode->spec & 0x0000ffff, inode->name, inode, -			inode->spec); -#else -		printf (" %s  %3d,%3d %12s", str, -			(inode->spec & 0xffff0000) >> 16, -			inode->spec & 0x0000ffff); -#endif -	} else { -#ifdef DEBUG_ROMFS -		printf (" %s  %7d %12s 0x%08x 0x%08x", str, inode->size, -			inode->name, inode, inode->spec); -#else -		printf (" %s  %7d %12s", str, inode->size, inode->name); -#endif -		if (str[0] == 'l') { -			data = (char *)((int)inode + HEADERSIZE (inode->name)); -			puts (" -> "); -			puts (data); -		} -		if (str[0] == 'h') { -			hardlink = (struct romfs_inode *)(PART_OFFSET (info) + -						inode->spec); -			puts (" -> "); -			puts (hardlink->name); -		} -	} -	puts ("\n"); -	return ALIGN (inode->next); -} - -int romfs_ls (struct part_info *info, char *filename) -{ -	struct romfs_inode *inode; -	unsigned long inodeoffset = 0, nextoffset; -	unsigned long offset, size; -	struct romfs_super *sb; -	sb = (struct romfs_super *)PART_OFFSET (info); - -	if (strlen (filename) == 0 || !strcmp (filename, "/")) { -		offset = HEADERSIZE (sb->name); -		size = sb->size; -	} else { -		offset = romfs_resolve (PART_OFFSET (info), -			HEADERSIZE (sb->name), sb->size, 1, -			strtok (filename, "/")); - -		if (offset == 0) { -			return offset; -		} -		inode = (struct romfs_inode *)(PART_OFFSET (info) + offset); -		if ((inode->next & 0x7) != 1) { -			return (romfs_list_inode (info, offset) > 0); -		} - -		size = sb->size; -		offset = offset + HEADERSIZE (inode->name); -	} - -	inodeoffset = offset + inodeoffset; -	while (inodeoffset < size) { -		nextoffset = romfs_list_inode (info, inodeoffset); -		if (nextoffset == 0) -			break; -		inodeoffset = nextoffset; -	} -	return 1; -} - -int romfs_info (struct part_info *info) -{ -	struct romfs_super *sb; -	sb = (struct romfs_super *)PART_OFFSET (info); - -	printf ("name: \t\t%s, len %d B\n", sb->name, strlen (sb->name)); -	printf ("size of SB:\t%d B\n", HEADERSIZE (sb->name)); -	printf ("full size:\t%d B\n", sb->size); -	printf ("checksum:\t0x%x\n", sb->checksum); -	return 0; -} - -int romfs_check (struct part_info *info) -{ -	struct romfs_super *sb; -	if (info->dev->id->type != MTD_DEV_TYPE_NOR) -		return 0; - -	sb = (struct romfs_super *)PART_OFFSET (info); -	if ((sb->word0 != 0x2D726F6D) || (sb->word1 != 0x3166732D)) { -		return 0; -	} -	return 1; -} - -#endif |