++#define SQUASHFS_FILE_MAX_SIZE 65536
++
++/* Max number of uids and gids */
++#define SQUASHFS_UIDS 256
++#define SQUASHFS_GUIDS 255
++
++/* Max length of filename (not 255) */
++#define SQUASHFS_NAME_LEN 256
++
++#define SQUASHFS_INVALID ((long long) 0xffffffffffff)
++#define SQUASHFS_INVALID_BLK ((long long) 0xffffffff)
++#define SQUASHFS_USED_BLK ((long long) 0xfffffffe)
++
++/* Filesystem flags */
++#define SQUASHFS_NOI 0
++#define SQUASHFS_NOD 1
++#define SQUASHFS_CHECK 2
++#define SQUASHFS_NOF 3
++#define SQUASHFS_NO_FRAG 4
++#define SQUASHFS_ALWAYS_FRAG 5
++#define SQUASHFS_DUPLICATE 6
++#define SQUASHFS_BIT(flag, bit) ((flag >> bit) & 1)
++#define SQUASHFS_UNCOMPRESSED_INODES(flags) SQUASHFS_BIT(flags, SQUASHFS_NOI)
++#define SQUASHFS_UNCOMPRESSED_DATA(flags) SQUASHFS_BIT(flags, SQUASHFS_NOD)
++#define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags) SQUASHFS_BIT(flags, SQUASHFS_NOF)
++#define SQUASHFS_NO_FRAGMENTS(flags) SQUASHFS_BIT(flags, SQUASHFS_NO_FRAG)
++#define SQUASHFS_ALWAYS_FRAGMENTS(flags) SQUASHFS_BIT(flags, SQUASHFS_ALWAYS_FRAG)
++#define SQUASHFS_DUPLICATES(flags) SQUASHFS_BIT(flags, SQUASHFS_DUPLICATE)
++#define SQUASHFS_CHECK_DATA(flags) SQUASHFS_BIT(flags, SQUASHFS_CHECK)
++#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, duplicate_checking) (noi | (nod << 1) | (check_data << 2) | (nof << 3) | (no_frag << 4) | (always_frag << 5) | (duplicate_checking << 6))
++
++/* Max number of types and file types */
++#define SQUASHFS_DIR_TYPE 1
++#define SQUASHFS_FILE_TYPE 2
++#define SQUASHFS_SYMLINK_TYPE 3
++#define SQUASHFS_BLKDEV_TYPE 4
++#define SQUASHFS_CHRDEV_TYPE 5
++#define SQUASHFS_FIFO_TYPE 6
++#define SQUASHFS_SOCKET_TYPE 7
++
++/* 1.0 filesystem type definitions */
++#define SQUASHFS_TYPES 5
++#define SQUASHFS_IPC_TYPE 0
++
++/* Flag whether block is compressed or uncompressed, bit is set if block is uncompressed */
++#define SQUASHFS_COMPRESSED_BIT (1 << 15)
++#define SQUASHFS_COMPRESSED_SIZE(B) (((B) & ~SQUASHFS_COMPRESSED_BIT) ? \
++ (B) & ~SQUASHFS_COMPRESSED_BIT : SQUASHFS_COMPRESSED_BIT)
++
++#define SQUASHFS_COMPRESSED(B) (!((B) & SQUASHFS_COMPRESSED_BIT))
++
++#define SQUASHFS_COMPRESSED_BIT_BLOCK (1 << 24)
++#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) (((B) & ~SQUASHFS_COMPRESSED_BIT_BLOCK) ? \
++ (B) & ~SQUASHFS_COMPRESSED_BIT_BLOCK : SQUASHFS_COMPRESSED_BIT_BLOCK)
++
++#define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK))
++
++/*
++ * Inode number ops. Inodes consist of a compressed block number, and an uncompressed
++ * offset within that block
++ */
++#define SQUASHFS_INODE_BLK(a) ((unsigned int) ((a) >> 16))
++#define SQUASHFS_INODE_OFFSET(a) ((unsigned int) ((a) & 0xffff))
++#define SQUASHFS_MKINODE(A, B) ((squashfs_inode)(((squashfs_inode) (A) << 16)\
++ + (B)))
++
++/* Compute 32 bit VFS inode number from squashfs inode number */
++#define SQUASHFS_MK_VFS_INODE(a, b) ((unsigned int) (((a) << 8) + ((b) >> 2) + 1))
++
++/* Translate between VFS mode and squashfs mode */
++#define SQUASHFS_MODE(a) ((a) & 0xfff)
++
++/* fragment and fragment table defines */
++typedef unsigned int squashfs_fragment_index;
++#define SQUASHFS_FRAGMENT_BYTES(A) (A * sizeof(squashfs_fragment_entry))
++#define SQUASHFS_FRAGMENT_INDEX(A) (SQUASHFS_FRAGMENT_BYTES(A) / SQUASHFS_METADATA_SIZE)
++#define SQUASHFS_FRAGMENT_INDEX_OFFSET(A) (SQUASHFS_FRAGMENT_BYTES(A) % SQUASHFS_METADATA_SIZE)
++#define SQUASHFS_FRAGMENT_INDEXES(A) ((SQUASHFS_FRAGMENT_BYTES(A) + SQUASHFS_METADATA_SIZE - 1) / SQUASHFS_METADATA_SIZE)
++#define SQUASHFS_FRAGMENT_INDEX_BYTES(A) (SQUASHFS_FRAGMENT_INDEXES(A) * sizeof(squashfs_fragment_index))
++#define SQUASHFS_CACHED_FRAGMENTS 3
++
++/* cached data constants for filesystem */
++#define SQUASHFS_CACHED_BLKS 8
++
++#define SQUASHFS_MAX_FILE_SIZE_LOG 32
++#define SQUASHFS_MAX_FILE_SIZE ((long long) 1 << (SQUASHFS_MAX_FILE_SIZE_LOG - 1))
++
++#define SQUASHFS_MARKER_BYTE 0xff
++
++/*
++ * definitions for structures on disk
++ */
++
++typedef unsigned int squashfs_block;
++typedef long long squashfs_inode;
++
++typedef unsigned int squashfs_uid;
++
++typedef struct squashfs_super_block {
++ unsigned int s_magic;
++ unsigned int inodes;
++ unsigned int bytes_used;
++ unsigned int uid_start;
++ unsigned int guid_start;
++ unsigned int inode_table_start;
++ unsigned int directory_table_start;
++ unsigned int s_major:16;
++ unsigned int s_minor:16;
++ unsigned int block_size_1:16;
++ unsigned int block_log:16;
++ unsigned int flags:8;
++ unsigned int no_uids:8;
++ unsigned int no_guids:8;
++ time_t mkfs_time /* time of filesystem creation */;
++ squashfs_inode root_inode;
++ unsigned int block_size;
++ unsigned int fragments;
++ unsigned int fragment_table_start;
++} __attribute__ ((packed)) squashfs_super_block;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:8; /* index into uid table */
++ unsigned int guid:8; /* index into guid table */
++} __attribute__ ((packed)) squashfs_base_inode_header;
++
++typedef squashfs_base_inode_header squashfs_ipc_inode_header;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:8; /* index into uid table */
++ unsigned int guid:8; /* index into guid table */
++ unsigned short rdev;
++} __attribute__ ((packed)) squashfs_dev_inode_header;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:8; /* index into uid table */
++ unsigned int guid:8; /* index into guid table */
++ unsigned short symlink_size;
++ char symlink[0];
++} __attribute__ ((packed)) squashfs_symlink_inode_header;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:8; /* index into uid table */
++ unsigned int guid:8; /* index into guid table */
++ time_t mtime;
++ squashfs_block start_block;
++ unsigned int fragment;
++ unsigned int offset;
++ unsigned int file_size:SQUASHFS_MAX_FILE_SIZE_LOG;
++ unsigned short block_list[0];
++} __attribute__ ((packed)) squashfs_reg_inode_header;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:8; /* index into uid table */
++ unsigned int guid:8; /* index into guid table */
++ unsigned int file_size:19;
++ unsigned int offset:13;
++ time_t mtime;
++ unsigned int start_block:24;
++} __attribute__ ((packed)) squashfs_dir_inode_header;
++
++typedef union {
++ squashfs_base_inode_header base;
++ squashfs_dev_inode_header dev;
++ squashfs_symlink_inode_header symlink;
++ squashfs_reg_inode_header reg;
++ squashfs_dir_inode_header dir;
++ squashfs_ipc_inode_header ipc;
++} squashfs_inode_header;
++
++typedef struct {
++ unsigned int offset:13;
++ unsigned int type:3;
++ unsigned int size:8;
++ char name[0];
++} __attribute__ ((packed)) squashfs_dir_entry;
++
++typedef struct {
++ unsigned int count:8;
++ unsigned int start_block:24;
++} __attribute__ ((packed)) squashfs_dir_header;
++
++
++typedef struct {
++ unsigned int start_block;
++ unsigned int size;
++} __attribute__ ((packed)) squashfs_fragment_entry;
++
++extern int squashfs_uncompress_block(void *d, int dstlen, void *s, int srclen);
++extern int squashfs_uncompress_init(void);
++extern int squashfs_uncompress_exit(void);
++
++/*
++ * macros to convert each packed bitfield structure from little endian to big
++ * endian and vice versa. These are needed when creating or using a filesystem on a
++ * machine with different byte ordering to the target architecture.
++ *
++ */
++
++#define SQUASHFS_SWAP_SUPER_BLOCK(s, d) {\
++ SQUASHFS_MEMSET(s, d, sizeof(squashfs_super_block));\
++ SQUASHFS_SWAP((s)->s_magic, d, 0, 32);\
++ SQUASHFS_SWAP((s)->inodes, d, 32, 32);\
++ SQUASHFS_SWAP((s)->bytes_used, d, 64, 32);\
++ SQUASHFS_SWAP((s)->uid_start, d, 96, 32);\
++ SQUASHFS_SWAP((s)->guid_start, d, 128, 32);\
++ SQUASHFS_SWAP((s)->inode_table_start, d, 160, 32);\
++ SQUASHFS_SWAP((s)->directory_table_start, d, 192, 32);\
++ SQUASHFS_SWAP((s)->s_major, d, 224, 16);\
++ SQUASHFS_SWAP((s)->s_minor, d, 240, 16);\
++ SQUASHFS_SWAP((s)->block_size_1, d, 256, 16);\
++ SQUASHFS_SWAP((s)->block_log, d, 272, 16);\
++ SQUASHFS_SWAP((s)->flags, d, 288, 8);\
++ SQUASHFS_SWAP((s)->no_uids, d, 296, 8);\
++ SQUASHFS_SWAP((s)->no_guids, d, 304, 8);\
++ SQUASHFS_SWAP((s)->mkfs_time, d, 312, 32);\
++ SQUASHFS_SWAP((s)->root_inode, d, 344, 64);\
++ SQUASHFS_SWAP((s)->block_size, d, 408, 32);\
++ SQUASHFS_SWAP((s)->fragments, d, 440, 32);\
++ SQUASHFS_SWAP((s)->fragment_table_start, d, 472, 32);\
++}
++
++#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\
++ SQUASHFS_MEMSET(s, d, n);\
++ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
++ SQUASHFS_SWAP((s)->mode, d, 4, 12);\
++ SQUASHFS_SWAP((s)->uid, d, 16, 8);\
++ SQUASHFS_SWAP((s)->guid, d, 24, 8);\
++}
++
++#define SQUASHFS_SWAP_IPC_INODE_HEADER(s, d) SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_ipc_inode_header))
++
++#define SQUASHFS_SWAP_DEV_INODE_HEADER(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_dev_inode_header));\
++ SQUASHFS_SWAP((s)->rdev, d, 32, 16);\
++}
++
++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_symlink_inode_header));\
++ SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\
++}
++
++#define SQUASHFS_SWAP_REG_INODE_HEADER(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_reg_inode_header));\
++ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\
++ SQUASHFS_SWAP((s)->start_block, d, 64, 32);\
++ SQUASHFS_SWAP((s)->fragment, d, 96, 32);\
++ SQUASHFS_SWAP((s)->offset, d, 128, 32);\
++ SQUASHFS_SWAP((s)->file_size, d, 160, SQUASHFS_MAX_FILE_SIZE_LOG);\
++}
++
++#define SQUASHFS_SWAP_DIR_INODE_HEADER(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_dir_inode_header));\
++ SQUASHFS_SWAP((s)->file_size, d, 32, 19);\
++ SQUASHFS_SWAP((s)->offset, d, 51, 13);\
++ SQUASHFS_SWAP((s)->mtime, d, 64, 32);\
++ SQUASHFS_SWAP((s)->start_block, d, 96, 24);\
++}
++
++#define SQUASHFS_SWAP_DIR_HEADER(s, d) {\
++ SQUASHFS_MEMSET(s, d, sizeof(squashfs_dir_header));\
++ SQUASHFS_SWAP((s)->count, d, 0, 8);\
++ SQUASHFS_SWAP((s)->start_block, d, 8, 24);\
++}
++
++#define SQUASHFS_SWAP_DIR_ENTRY(s, d) {\
++ SQUASHFS_MEMSET(s, d, sizeof(squashfs_dir_entry));\
++ SQUASHFS_SWAP((s)->offset, d, 0, 13);\
++ SQUASHFS_SWAP((s)->type, d, 13, 3);\
++ SQUASHFS_SWAP((s)->size, d, 16, 8);\
++}
++
++#define SQUASHFS_SWAP_FRAGMENT_ENTRY(s, d) {\
++ SQUASHFS_MEMSET(s, d, sizeof(squashfs_fragment_entry));\
++ SQUASHFS_SWAP((s)->start_block, d, 0, 32);\
++ SQUASHFS_SWAP((s)->size, d, 32, 32);\
++}
++
++#define SQUASHFS_SWAP_SHORTS(s, d, n) {\
++ int entry;\
++ int bit_position;\
++ SQUASHFS_MEMSET(s, d, n * 2);\
++ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += 16)\
++ SQUASHFS_SWAP(s[entry], d, bit_position, 16);\
++}
++
++#define SQUASHFS_SWAP_INTS(s, d, n) {\
++ int entry;\
++ int bit_position;\
++ SQUASHFS_MEMSET(s, d, n * 4);\
++ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += 32)\
++ SQUASHFS_SWAP(s[entry], d, bit_position, 32);\
++}
++
++#define SQUASHFS_SWAP_DATA(s, d, n, bits) {\
++ int entry;\
++ int bit_position;\
++ SQUASHFS_MEMSET(s, d, n * bits / 8);\
++ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += bits)\
++ SQUASHFS_SWAP(s[entry], d, bit_position, bits);\
++}
++
++#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_INTS(s, d, n)
++
++#ifdef SQUASHFS_1_0_COMPATIBILITY
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:4; /* index into uid table */
++ unsigned int guid:4; /* index into guid table */
++} __attribute__ ((packed)) squashfs_base_inode_header_1;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:4; /* index into uid table */
++ unsigned int guid:4; /* index into guid table */
++ unsigned int type:4;
++ unsigned int offset:4;
++} __attribute__ ((packed)) squashfs_ipc_inode_header_1;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:4; /* index into uid table */
++ unsigned int guid:4; /* index into guid table */
++ unsigned short rdev;
++} __attribute__ ((packed)) squashfs_dev_inode_header_1;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:4; /* index into uid table */
++ unsigned int guid:4; /* index into guid table */
++ unsigned short symlink_size;
++ char symlink[0];
++} __attribute__ ((packed)) squashfs_symlink_inode_header_1;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:4; /* index into uid table */
++ unsigned int guid:4; /* index into guid table */
++ time_t mtime;
++ squashfs_block start_block;
++ unsigned int file_size:SQUASHFS_MAX_FILE_SIZE_LOG;
++ unsigned short block_list[0];
++} __attribute__ ((packed)) squashfs_reg_inode_header_1;
++
++typedef struct {
++ unsigned int inode_type:4;
++ unsigned int mode:12; /* protection */
++ unsigned int uid:4; /* index into uid table */
++ unsigned int guid:4; /* index into guid table */
++ unsigned int file_size:19;
++ unsigned int offset:13;
++ time_t mtime;
++ unsigned int start_block:24;
++} __attribute__ ((packed)) squashfs_dir_inode_header_1;
++
++#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\
++ SQUASHFS_MEMSET(s, d, n);\
++ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
++ SQUASHFS_SWAP((s)->mode, d, 4, 12);\
++ SQUASHFS_SWAP((s)->uid, d, 16, 4);\
++ SQUASHFS_SWAP((s)->guid, d, 20, 4);\
++}
++
++#define SQUASHFS_SWAP_IPC_INODE_HEADER_1(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, sizeof(squashfs_ipc_inode_header_1));\
++ SQUASHFS_SWAP((s)->type, d, 24, 4);\
++ SQUASHFS_SWAP((s)->offset, d, 28, 4);\
++}
++
++#define SQUASHFS_SWAP_DEV_INODE_HEADER_1(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, sizeof(squashfs_dev_inode_header_1));\
++ SQUASHFS_SWAP((s)->rdev, d, 24, 16);\
++}
++
++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_1(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_symlink_inode_header_1));\
++ SQUASHFS_SWAP((s)->symlink_size, d, 24, 16);\
++}
++
++#define SQUASHFS_SWAP_REG_INODE_HEADER_1(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_reg_inode_header_1));\
++ SQUASHFS_SWAP((s)->mtime, d, 24, 32);\
++ SQUASHFS_SWAP((s)->start_block, d, 56, 32);\
++ SQUASHFS_SWAP((s)->file_size, d, 88, SQUASHFS_MAX_FILE_SIZE_LOG);\
++}
++
++#define SQUASHFS_SWAP_DIR_INODE_HEADER_1(s, d) {\
++ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_dir_inode_header_1));\
++ SQUASHFS_SWAP((s)->file_size, d, 24, 19);\
++ SQUASHFS_SWAP((s)->offset, d, 43, 13);\
++ SQUASHFS_SWAP((s)->mtime, d, 56, 32);\
++ SQUASHFS_SWAP((s)->start_block, d, 88, 24);\
++}
++#endif
++
++#ifdef __KERNEL__
++/*
++ * macros used to swap each structure entry, taking into account
++ * bitfields and different bitfield placing conventions on differing architectures
++ */
++#include <asm/byteorder.h>
++#ifdef __BIG_ENDIAN
++ /* convert from little endian to big endian */
++#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, tbits, b_pos)
++#else
++ /* convert from big endian to little endian */
++#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, tbits, 64 - tbits - b_pos)
++#endif
++
++#define _SQUASHFS_SWAP(value, p, pos, tbits, SHIFT) {\
++ int bits;\
++ int b_pos = pos % 8;\
++ unsigned long long val = 0;\
++ unsigned char *s = (unsigned char *)p + (pos / 8);\
++ unsigned char *d = ((unsigned char *) &val) + 7;\
++ for(bits = 0; bits < (tbits + b_pos); bits += 8) \
++ *d-- = *s++;\
++ value = (val >> (SHIFT))/* & ((1 << tbits) - 1)*/;\
++}
++#define SQUASHFS_MEMSET(s, d, n) memset(s, 0, n);
++#endif
++#endif
+diff -Nurb src/linux/linux.orig/include/linux/squashfs_fs_i.h src/linux/linux/include/linux/squashfs_fs_i.h
+--- src/linux/linux.orig/include/linux/squashfs_fs_i.h 1969-12-31 19:00:00.000000000 -0500
++++ src/linux/linux/include/linux/squashfs_fs_i.h 2004-05-25 21:13:03.000000000 -0400
+@@ -0,0 +1,33 @@
++#ifndef SQUASHFS_FS_I
++#define SQUASHFS_FS_I
++/*
++ * Squashfs
++ *
++ * Copyright (c) 2002, 2003, 2004 Phillip Lougher <plougher@users.sourceforge.net>
++ *
++ * 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,
++ * 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * squashfs_fs_i.h
++ */
++
++typedef struct squashfs_inode_info {
++ unsigned int start_block;
++ unsigned int block_list_start;
++ unsigned int offset;
++ unsigned int fragment_start_block;
++ unsigned int fragment_size;
++ unsigned int fragment_offset;
++ } squashfs_inode_info;
++#endif
+diff -Nurb src/linux/linux.orig/include/linux/squashfs_fs_sb.h src/linux/linux/include/linux/squashfs_fs_sb.h
+--- src/linux/linux.orig/include/linux/squashfs_fs_sb.h 1969-12-31 19:00:00.000000000 -0500
++++ src/linux/linux/include/linux/squashfs_fs_sb.h 2004-05-25 21:13:03.000000000 -0400
+@@ -0,0 +1,65 @@
++#ifndef SQUASHFS_FS_SB
++#define SQUASHFS_FS_SB
++/*
++ * Squashfs
++ *
++ * Copyright (c) 2002, 2003, 2004 Phillip Lougher <plougher@users.sourceforge.net>
++ *
++ * 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,
++ * 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * squashfs_fs_sb.h
++ */
++
++#include <linux/squashfs_fs.h>
++
++typedef struct {
++ unsigned int block;
++ int length;
++ unsigned int next_index;
++ char *data;
++ } squashfs_cache;
++
++struct squashfs_fragment_cache {
++ unsigned int block;
++ int length;
++ unsigned int locked;
++ char *data;
++ };
++
++typedef struct squashfs_sb_info {
++ squashfs_super_block sBlk;
++ int devblksize;
++ int devblksize_log2;
++ int swap;
++ squashfs_cache *block_cache;
++ struct squashfs_fragment_cache *fragment;
++ int next_cache;
++ int next_fragment;
++ squashfs_uid *uid;
++ squashfs_uid *guid;
++ squashfs_fragment_index *fragment_index;
++ unsigned int read_size;
++ char *read_data;
++ char *read_page;
++ struct semaphore read_page_mutex;
++ struct semaphore block_cache_mutex;
++ struct semaphore fragment_mutex;
++ wait_queue_head_t waitq;
++ wait_queue_head_t fragment_wait_queue;
++ struct inode *(*iget)(struct super_block *s, squashfs_inode inode);
++ unsigned int (*read_blocklist)(struct inode *inode, int index, int readahead_blks,
++ char *block_list, char **block_p, unsigned int *bsize);
++ } squashfs_sb_info;
++#endif
+diff -Nurb src/linux/linux.orig/init/do_mounts.c src/linux/linux/init/do_mounts.c
+--- src/linux/linux.orig/init/do_mounts.c 2003-11-08 03:13:20.000000000 -0500
++++ src/linux/linux/init/do_mounts.c 2004-05-25 21:13:03.000000000 -0400
+@@ -16,6 +16,7 @@
+ #include <linux/ext2_fs.h>
+ #include <linux/romfs_fs.h>
+ #include <linux/cramfs_fs.h>
++#include <linux/squashfs_fs.h>
+
+ #undef BUILD_CRAMDISK
+
+@@ -470,6 +471,7 @@
+ * ext2
+ * romfs
+ * gzip
++ * squashfs
+ */
+ static int __init
+ identify_ramdisk_image(int fd, int start_block)
+@@ -479,6 +481,7 @@
+ struct ext2_super_block *ext2sb;
+ struct romfs_super_block *romfsb;
+ struct cramfs_super *cramfsb;
++ struct squashfs_super_block *squashfsb;
+ int nblocks = -1;
+ unsigned char *buf;
+
+@@ -490,6 +493,7 @@
+ ext2sb = (struct ext2_super_block *) buf;
+ romfsb = (struct romfs_super_block *) buf;
+ cramfsb = (struct cramfs_super *) buf;
++ squashfsb = (struct squashfs_super_block *) buf;
+ memset(buf, 0xe5, size);
+
+ /*
+@@ -536,6 +540,15 @@
+ goto done;
+ }
+
++ /* squashfs is at block zero too */
++ if (squashfsb->s_magic == SQUASHFS_MAGIC) {
++ printk(KERN_NOTICE
++ "RAMDISK: squashfs filesystem found at block %d\n",
++ start_block);
++ nblocks = (squashfsb->bytes_used+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS;
++ goto done;
++ }
++
+ /*
+ * Read block 1 to test for minix and ext2 superblock
+ */
+diff -Nurb src/linux/linux.orig/init/do_mounts.c.orig src/linux/linux/init/do_mounts.c.orig
+--- src/linux/linux.orig/init/do_mounts.c.orig 1969-12-31 19:00:00.000000000 -0500
++++ src/linux/linux/init/do_mounts.c.orig 2004-05-25 21:12:42.000000000 -0400
+@@ -0,0 +1,1083 @@
++#define __KERNEL_SYSCALLS__
++#include <linux/config.h>
++#include <linux/slab.h>
++#include <linux/devfs_fs_kernel.h>
++#include <linux/unistd.h>
++#include <linux/ctype.h>
++#include <linux/blk.h>
++#include <linux/fd.h>
++#include <linux/tty.h>
++#include <linux/init.h>
++
++#include <linux/nfs_fs.h>
++#include <linux/nfs_fs_sb.h>
++#include <linux/nfs_mount.h>
++#include <linux/minix_fs.h>
++#include <linux/ext2_fs.h>
++#include <linux/romfs_fs.h>
++#include <linux/cramfs_fs.h>
++#include <linux/squashfs_fs.h>
++
++#undef BUILD_CRAMDISK
++
++extern int get_filesystem_list(char * buf);
++
++extern asmlinkage long sys_mount(char *dev_name, char *dir_name, char *type,
++ unsigned long flags, void *data);
++extern asmlinkage long sys_mkdir(const char *name, int mode);
++extern asmlinkage long sys_chdir(const char *name);
++extern asmlinkage long sys_fchdir(int fd);
++extern asmlinkage long sys_chroot(const char *name);
++extern asmlinkage long sys_unlink(const char *name);
++extern asmlinkage long sys_symlink(const char *old, const char *new);
++extern asmlinkage long sys_mknod(const char *name, int mode, dev_t dev);
++extern asmlinkage long sys_umount(char *name, int flags);
++extern asmlinkage long sys_ioctl(int fd, int cmd, unsigned long arg);
++
++#ifdef CONFIG_BLK_DEV_INITRD
++unsigned int real_root_dev; /* do_proc_dointvec cannot handle kdev_t */
++static int __initdata mount_initrd = 1;
++
++static int __init no_initrd(char *str)
++{
++ mount_initrd = 0;
++ return 1;
++}
++
++__setup("noinitrd", no_initrd);
++#else
++static int __initdata mount_initrd = 0;
++#endif
++
++int __initdata rd_doload; /* 1 = load RAM disk, 0 = don't load */
++
++int root_mountflags = MS_RDONLY | MS_VERBOSE;
++static char root_device_name[64];
++
++/* this is initialized in init/main.c */
++kdev_t ROOT_DEV;
++
++static int do_devfs = 0;
++
++static int __init load_ramdisk(char *str)
++{
++ rd_doload = simple_strtol(str,NULL,0) & 3;
++ return 1;
++}
++__setup("load_ramdisk=", load_ramdisk);
++
++static int __init readonly(char *str)
++{
++ if (*str)
++ return 0;
++ root_mountflags |= MS_RDONLY;
++ return 1;
++}
++
++static int __init readwrite(char *str)
++{
++ if (*str)
++ return 0;
++ root_mountflags &= ~MS_RDONLY;
++ return 1;
++}
++
++__setup("ro", readonly);
++__setup("rw", readwrite);
++
++static struct dev_name_struct {
++ const char *name;
++ const int num;
++} root_dev_names[] __initdata = {
++ { "nfs", 0x00ff },
++ { "hda", 0x0300 },
++ { "hdb", 0x0340 },
++ { "loop", 0x0700 },
++ { "hdc", 0x1600 },
++ { "hdd", 0x1640 },
++ { "hde", 0x2100 },
++ { "hdf", 0x2140 },
++ { "hdg", 0x2200 },
++ { "hdh", 0x2240 },
++ { "hdi", 0x3800 },
++ { "hdj", 0x3840 },
++ { "hdk", 0x3900 },
++ { "hdl", 0x3940 },
++ { "hdm", 0x5800 },
++ { "hdn", 0x5840 },
++ { "hdo", 0x5900 },
++ { "hdp", 0x5940 },
++ { "hdq", 0x5A00 },
++ { "hdr", 0x5A40 },
++ { "hds", 0x5B00 },
++ { "hdt", 0x5B40 },
++ { "sda", 0x0800 },
++ { "sdb", 0x0810 },
++ { "sdc", 0x0820 },
++ { "sdd", 0x0830 },
++ { "sde", 0x0840 },
++ { "sdf", 0x0850 },
++ { "sdg", 0x0860 },
++ { "sdh", 0x0870 },
++ { "sdi", 0x0880 },
++ { "sdj", 0x0890 },
++ { "sdk", 0x08a0 },
++ { "sdl", 0x08b0 },
++ { "sdm", 0x08c0 },
++ { "sdn", 0x08d0 },
++ { "sdo", 0x08e0 },
++ { "sdp", 0x08f0 },
++ { "ada", 0x1c00 },
++ { "adb", 0x1c10 },
++ { "adc", 0x1c20 },
++ { "add", 0x1c30 },
++ { "ade", 0x1c40 },
++ { "fd", 0x0200 },
++ { "md", 0x0900 },
++ { "xda", 0x0d00 },
++ { "xdb", 0x0d40 },
++ { "ram", 0x0100 },
++ { "scd", 0x0b00 },
++ { "mcd", 0x1700 },
++ { "cdu535", 0x1800 },
++ { "sonycd", 0x1800 },
++ { "aztcd", 0x1d00 },
++ { "cm206cd", 0x2000 },
++ { "gscd", 0x1000 },
++ { "sbpcd", 0x1900 },
++ { "eda", 0x2400 },
++ { "edb", 0x2440 },
++ { "pda", 0x2d00 },
++ { "pdb", 0x2d10 },
++ { "pdc", 0x2d20 },
++ { "pdd", 0x2d30 },
++ { "pcd", 0x2e00 },
++ { "pf", 0x2f00 },
++ { "apblock", APBLOCK_MAJOR << 8},
++ { "ddv", DDV_MAJOR << 8},
++ { "jsfd", JSFD_MAJOR << 8},
++#if defined(CONFIG_ARCH_S390)
++ { "dasda", (DASD_MAJOR << MINORBITS) },
++ { "dasdb", (DASD_MAJOR << MINORBITS) + (1 << 2) },
++ { "dasdc", (DASD_MAJOR << MINORBITS) + (2 << 2) },
++ { "dasdd", (DASD_MAJOR << MINORBITS) + (3 << 2) },
++ { "dasde", (DASD_MAJOR << MINORBITS) + (4 << 2) },
++ { "dasdf", (DASD_MAJOR << MINORBITS) + (5 << 2) },
++ { "dasdg", (DASD_MAJOR << MINORBITS) + (6 << 2) },
++ { "dasdh", (DASD_MAJOR << MINORBITS) + (7 << 2) },
++#endif
++#if defined(CONFIG_BLK_CPQ_DA) || defined(CONFIG_BLK_CPQ_DA_MODULE)
++ { "ida/c0d0p",0x4800 },
++ { "ida/c0d1p",0x4810 },
++ { "ida/c0d2p",0x4820 },
++ { "ida/c0d3p",0x4830 },
++ { "ida/c0d4p",0x4840 },
++ { "ida/c0d5p",0x4850 },
++ { "ida/c0d6p",0x4860 },
++ { "ida/c0d7p",0x4870 },
++ { "ida/c0d8p",0x4880 },
++ { "ida/c0d9p",0x4890 },
++ { "ida/c0d10p",0x48A0 },
++ { "ida/c0d11p",0x48B0 },
++ { "ida/c0d12p",0x48C0 },
++ { "ida/c0d13p",0x48D0 },
++ { "ida/c0d14p",0x48E0 },
++ { "ida/c0d15p",0x48F0 },
++ { "ida/c1d0p",0x4900 },
++ { "ida/c2d0p",0x4A00 },
++ { "ida/c3d0p",0x4B00 },
++ { "ida/c4d0p",0x4C00 },
++ { "ida/c5d0p",0x4D00 },
++ { "ida/c6d0p",0x4E00 },
++ { "ida/c7d0p",0x4F00 },
++#endif
++#if defined(CONFIG_BLK_CPQ_CISS_DA) || defined(CONFIG_BLK_CPQ_CISS_DA_MODULE)
++ { "cciss/c0d0p",0x6800 },
++ { "cciss/c0d1p",0x6810 },
++ { "cciss/c0d2p",0x6820 },
++ { "cciss/c0d3p",0x6830 },
++ { "cciss/c0d4p",0x6840 },
++ { "cciss/c0d5p",0x6850 },
++ { "cciss/c0d6p",0x6860 },
++ { "cciss/c0d7p",0x6870 },
++ { "cciss/c0d8p",0x6880 },
++ { "cciss/c0d9p",0x6890 },
++ { "cciss/c0d10p",0x68A0 },
++ { "cciss/c0d11p",0x68B0 },
++ { "cciss/c0d12p",0x68C0 },
++ { "cciss/c0d13p",0x68D0 },
++ { "cciss/c0d14p",0x68E0 },
++ { "cciss/c0d15p",0x68F0 },
++ { "cciss/c1d0p",0x6900 },
++ { "cciss/c2d0p",0x6A00 },
++ { "cciss/c3d0p",0x6B00 },
++ { "cciss/c4d0p",0x6C00 },
++ { "cciss/c5d0p",0x6D00 },
++ { "cciss/c6d0p",0x6E00 },
++ { "cciss/c7d0p",0x6F00 },
++#endif
++ { "ataraid/d0p",0x7200 },
++ { "ataraid/d1p",0x7210 },
++ { "ataraid/d2p",0x7220 },
++ { "ataraid/d3p",0x7230 },
++ { "ataraid/d4p",0x7240 },
++ { "ataraid/d5p",0x7250 },
++ { "ataraid/d6p",0x7260 },
++ { "ataraid/d7p",0x7270 },
++ { "ataraid/d8p",0x7280 },
++ { "ataraid/d9p",0x7290 },
++ { "ataraid/d10p",0x72A0 },
++ { "ataraid/d11p",0x72B0 },
++ { "ataraid/d12p",0x72C0 },
++ { "ataraid/d13p",0x72D0 },
++ { "ataraid/d14p",0x72E0 },
++ { "ataraid/d15p",0x72F0 },
++ { "nftla", 0x5d00 },
++ { "nftlb", 0x5d10 },
++ { "nftlc", 0x5d20 },
++ { "nftld", 0x5d30 },
++ { "ftla", 0x2c00 },
++ { "ftlb", 0x2c08 },
++ { "ftlc", 0x2c10 },
++ { "ftld", 0x2c18 },
++#if defined(CONFIG_MTD_BLOCK) || defined(CONFIG_MTD_BLOCK_RO)
++ { "mtdblock", 0x1f00 },
++ { "mtdblock0",0x1f00 },
++ { "mtdblock1",0x1f01 },
++ { "mtdblock2",0x1f02 },
++ { "mtdblock3",0x1f03 },
++#endif
++#ifdef CONFIG_BLK_DEV_DUMMY
++ { "dummy",0x2000 },
++#endif
++ { NULL, 0 }
++};
++
++kdev_t __init name_to_kdev_t(char *line)
++{
++ int base = 0, offs;
++ char *end;
++
++ if (strncmp(line,"/dev/",5) == 0) {
++ struct dev_name_struct *dev = root_dev_names;
++ line += 5;
++ do {
++ int len = strlen(dev->name);
++ if (strncmp(line,dev->name,len) == 0) {
++ line += len;
++ base = dev->num;
++ break;
++ }
++ dev++;
++ } while (dev->name);
++ }
++ offs = simple_strtoul(line, &end, base?10:16);
++ if (*end)
++ offs = 0;
++ return to_kdev_t(base + offs);
++}
++
++static int __init root_dev_setup(char *line)
++{
++ int i;
++ char ch;
++
++ ROOT_DEV = name_to_kdev_t(line);
++ memset (root_device_name, 0, sizeof root_device_name);
++ if (strncmp (line, "/dev/", 5) == 0) line += 5;
++ for (i = 0; i < sizeof root_device_name - 1; ++i)
++ {
++ ch = line[i];
++ if ( isspace (ch) || (ch == ',') || (ch == '\0') ) break;
++ root_device_name[i] = ch;
++ }
++ return 1;
++}
++
++__setup("root=", root_dev_setup);
++
++static char * __initdata root_mount_data;
++static int __init root_data_setup(char *str)
++{
++ root_mount_data = str;
++ return 1;
++}
++
++static char * __initdata root_fs_names;
++static int __init fs_names_setup(char *str)
++{
++ root_fs_names = str;
++ return 1;
++}
++
++__setup("rootflags=", root_data_setup);
++__setup("rootfstype=", fs_names_setup);
++
++static void __init get_fs_names(char *page)
++{
++ char *s = page;
++
++ if (root_fs_names) {
++ strcpy(page, root_fs_names);
++ while (*s++) {
++ if (s[-1] == ',')
++ s[-1] = '\0';
++ }
++ } else {
++ int len = get_filesystem_list(page);
++ char *p, *next;
++
++ page[len] = '\0';
++ for (p = page-1; p; p = next) {
++ next = strchr(++p, '\n');
++ if (*p++ != '\t')
++ continue;
++ while ((*s++ = *p++) != '\n')
++ ;
++ s[-1] = '\0';
++ }
++ }
++ *s = '\0';
++}
++static void __init mount_block_root(char *name, int flags)
++{
++ char *fs_names = __getname();
++ char *p;
++
++ get_fs_names(fs_names);
++retry:
++ for (p = fs_names; *p; p += strlen(p)+1) {
++ int err = sys_mount(name, "/root", p, flags, root_mount_data);
++ switch (err) {
++ case 0:
++ goto out;
++ case -EACCES:
++ flags |= MS_RDONLY;
++ goto retry;
++ case -EINVAL:
++ continue;
++ }
++ /*
++ * Allow the user to distinguish between failed open
++ * and bad superblock on root device.
++ */
++ printk ("VFS: Cannot open root device \"%s\" or %s\n",
++ root_device_name, kdevname (ROOT_DEV));
++ printk ("Please append a correct \"root=\" boot option\n");
++ panic("VFS: Unable to mount root fs on %s",
++ kdevname(ROOT_DEV));
++ }
++ panic("VFS: Unable to mount root fs on %s", kdevname(ROOT_DEV));
++out:
++ putname(fs_names);
++ sys_chdir("/root");
++ ROOT_DEV = current->fs->pwdmnt->mnt_sb->s_dev;
++ printk("VFS: Mounted root (%s filesystem)%s.\n",
++ current->fs->pwdmnt->mnt_sb->s_type->name,
++ (current->fs->pwdmnt->mnt_sb->s_flags & MS_RDONLY) ? " readonly" : "");
++}
++
++#ifdef CONFIG_ROOT_NFS
++static int __init mount_nfs_root(void)
++{
++ void *data = nfs_root_data();
++
++ if (data && sys_mount("/dev/root","/root","nfs",root_mountflags,data) == 0)
++ return 1;
++ return 0;
++}
++#endif
++
++static int __init create_dev(char *name, kdev_t dev, char *devfs_name)
++{
++ void *handle;
++ char path[64];
++ int n;
++
++ sys_unlink(name);
++ if (!do_devfs)
++ return sys_mknod(name, S_IFBLK|0600, kdev_t_to_nr(dev));
++
++ handle = devfs_find_handle(NULL, dev ? NULL : devfs_name,
++ MAJOR(dev), MINOR(dev), DEVFS_SPECIAL_BLK, 1);
++ if (!handle)
++ return -1;
++ n = devfs_generate_path(handle, path + 5, sizeof (path) - 5);
++ if (n < 0)
++ return -1;
++ return sys_symlink(path + n + 5, name);
++}
++
++#if defined(CONFIG_BLK_DEV_RAM) || defined(CONFIG_BLK_DEV_FD)
++static void __init change_floppy(char *fmt, ...)
++{
++ struct termios termios;
++ char buf[80];
++ char c;
++ int fd;
++ va_list args;
++ va_start(args, fmt);
++ vsprintf(buf, fmt, args);
++ va_end(args);
++ fd = open("/dev/root", O_RDWR | O_NDELAY, 0);
++ if (fd >= 0) {
++ sys_ioctl(fd, FDEJECT, 0);
++ close(fd);
++ }
++ printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
++ fd = open("/dev/console", O_RDWR, 0);
++ if (fd >= 0) {
++ sys_ioctl(fd, TCGETS, (long)&termios);
++ termios.c_lflag &= ~ICANON;
++ sys_ioctl(fd, TCSETSF, (long)&termios);
++ read(fd, &c, 1);
++ termios.c_lflag |= ICANON;
++ sys_ioctl(fd, TCSETSF, (long)&termios);
++ close(fd);
++ }
++}
++#endif
++
++#ifdef CONFIG_BLK_DEV_RAM
++
++int __initdata rd_prompt = 1; /* 1 = prompt for RAM disk, 0 = don't prompt */
++
++static int __init prompt_ramdisk(char *str)
++{
++ rd_prompt = simple_strtol(str,NULL,0) & 1;
++ return 1;
++}
++__setup("prompt_ramdisk=", prompt_ramdisk);
++
++int __initdata rd_image_start; /* starting block # of image */
++
++static int __init ramdisk_start_setup(char *str)
++{
++ rd_image_start = simple_strtol(str,NULL,0);
++ return 1;
++}
++__setup("ramdisk_start=", ramdisk_start_setup);
++
++static int __init crd_load(int in_fd, int out_fd);
++
++/*
++ * This routine tries to find a RAM disk image to load, and returns the
++ * number of blocks to read for a non-compressed image, 0 if the image
++ * is a compressed image, and -1 if an image with the right magic
++ * numbers could not be found.
++ *
++ * We currently check for the following magic numbers:
++ * minix
++ * ext2
++ * romfs
++ * gzip
++ */
++static int __init
++identify_ramdisk_image(int fd, int start_block)
++{
++ const int size = 512;
++ struct minix_super_block *minixsb;
++ struct ext2_super_block *ext2sb;
++ struct romfs_super_block *romfsb;
++ struct cramfs_super *cramfsb;
++ struct squashfs_super_block *squashfsb;
++ int nblocks = -1;
++ unsigned char *buf;
++
++ buf = kmalloc(size, GFP_KERNEL);
++ if (buf == 0)
++ return -1;
++
++ minixsb = (struct minix_super_block *) buf;
++ ext2sb = (struct ext2_super_block *) buf;
++ romfsb = (struct romfs_super_block *) buf;
++ cramfsb = (struct cramfs_super *) buf;
++ squashfsb = (struct squashfs_super_block *) buf;
++ memset(buf, 0xe5, size);
++
++ /*
++ * Read block 0 to test for gzipped kernel
++ */
++ lseek(fd, start_block * BLOCK_SIZE, 0);
++ read(fd, buf, size);
++
++ /*
++ * If it matches the gzip magic numbers, return -1
++ */
++ if (buf[0] == 037 && ((buf[1] == 0213) || (buf[1] == 0236))) {
++ printk(KERN_NOTICE
++ "RAMDISK: Compressed image found at block %d\n",
++ start_block);
++ nblocks = 0;
++ goto done;
++ }
++
++#ifdef CONFIG_BLK_DEV_INITRD
++ /*
++ * Fallback if size cannot be determined by superblock
++ */
++ nblocks = (initrd_end-initrd_start+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS;
++#endif
++
++ /* romfs is at block zero too */
++ if (romfsb->word0 == ROMSB_WORD0 &&
++ romfsb->word1 == ROMSB_WORD1) {
++ printk(KERN_NOTICE
++ "RAMDISK: romfs filesystem found at block %d\n",
++ start_block);
++ nblocks = (ntohl(romfsb->size)+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS;
++ goto done;
++ }
++
++ /* so is cramfs */
++ if (cramfsb->magic == CRAMFS_MAGIC) {
++ printk(KERN_NOTICE
++ "RAMDISK: cramfs filesystem found at block %d\n",
++ start_block);
++ if (cramfsb->flags & CRAMFS_FLAG_FSID_VERSION_2)
++ nblocks = (cramfsb->size+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS;
++ goto done;
++ }
++
++ /*
++ * Read block 1 to test for minix and ext2 superblock
++ */
++ lseek(fd, (start_block+1) * BLOCK_SIZE, 0);
++ read(fd, buf, size);
++
++ /* Try minix */
++ if (minixsb->s_magic == MINIX_SUPER_MAGIC ||
++ minixsb->s_magic == MINIX_SUPER_MAGIC2) {
++ printk(KERN_NOTICE
++ "RAMDISK: Minix filesystem found at block %d\n",
++ start_block);
++ nblocks = minixsb->s_nzones << minixsb->s_log_zone_size;
++ goto done;
++ }
++
++ /* Try ext2 */
++ if (ext2sb->s_magic == cpu_to_le16(EXT2_SUPER_MAGIC)) {
++ printk(KERN_NOTICE
++ "RAMDISK: ext2 filesystem found at block %d\n",
++ start_block);
++ nblocks = le32_to_cpu(ext2sb->s_blocks_count);
++ goto done;
++ }
++
++ printk(KERN_NOTICE
++ "RAMDISK: Couldn't find valid RAM disk image starting at %d.\n",
++ start_block);
++ nblocks = -1;
++
++done:
++ lseek(fd, start_block * BLOCK_SIZE, 0);
++ kfree(buf);
++ return nblocks;
++}
++#endif
++
++static int __init rd_load_image(char *from)
++{
++ int res = 0;
++
++#ifdef CONFIG_BLK_DEV_RAM
++ int in_fd, out_fd;
++ unsigned long rd_blocks, devblocks;
++ int nblocks, i;
++ char *buf;
++ unsigned short rotate = 0;
++#if !defined(CONFIG_ARCH_S390) && !defined(CONFIG_PPC_ISERIES)
++ char rotator[4] = { '|' , '/' , '-' , '\\' };
++#endif
++
++ out_fd = open("/dev/ram", O_RDWR, 0);
++ if (out_fd < 0)
++ goto out;
++
++ in_fd = open(from, O_RDONLY, 0);
++ if (in_fd < 0)
++ goto noclose_input;
++
++ nblocks = identify_ramdisk_image(in_fd, rd_image_start);
++ if (nblocks < 0)
++ goto done;
++
++ if (nblocks == 0) {
++#ifdef BUILD_CRAMDISK
++ if (crd_load(in_fd, out_fd) == 0)
++ goto successful_load;
++#else
++ printk(KERN_NOTICE
++ "RAMDISK: Kernel does not support compressed "
++ "RAM disk images\n");
++#endif
++ goto done;
++ }
++
++ /*
++ * NOTE NOTE: nblocks suppose that the blocksize is BLOCK_SIZE, so
++ * rd_load_image will work only with filesystem BLOCK_SIZE wide!
++ * So make sure to use 1k blocksize while generating ext2fs
++ * ramdisk-images.
++ */
++ if (sys_ioctl(out_fd, BLKGETSIZE, (unsigned long)&rd_blocks) < 0)
++ rd_blocks = 0;
++ else
++ rd_blocks >>= 1;
++
++ if (nblocks > rd_blocks) {
++ printk("RAMDISK: image too big! (%d/%d blocks)\n",
++ nblocks, rd_blocks);
++ goto done;
++ }
++
++ /*
++ * OK, time to copy in the data
++ */
++ buf = kmalloc(BLOCK_SIZE, GFP_KERNEL);
++ if (buf == 0) {
++ printk(KERN_ERR "RAMDISK: could not allocate buffer\n");
++ goto done;
++ }
++
++ if (sys_ioctl(in_fd, BLKGETSIZE, (unsigned long)&devblocks) < 0)
++ devblocks = 0;
++ else
++ devblocks >>= 1;
++
++ if (strcmp(from, "/dev/initrd") == 0)
++ devblocks = nblocks;
++
++ if (devblocks == 0) {
++ printk(KERN_ERR "RAMDISK: could not determine device size\n");
++ goto done;
++ }
++
++ printk(KERN_NOTICE "RAMDISK: Loading %d blocks [%d disk%s] into ram disk... ",
++ nblocks, ((nblocks-1)/devblocks)+1, nblocks>devblocks ? "s" : "");
++ for (i=0; i < nblocks; i++) {
++ if (i && (i % devblocks == 0)) {
++ printk("done disk #%d.\n", i/devblocks);
++ rotate = 0;
++ if (close(in_fd)) {
++ printk("Error closing the disk.\n");
++ goto noclose_input;
++ }
++ change_floppy("disk #%d", i/devblocks+1);
++ in_fd = open(from, O_RDONLY, 0);
++ if (in_fd < 0) {
++ printk("Error opening disk.\n");
++ goto noclose_input;
++ }
++ printk("Loading disk #%d... ", i/devblocks+1);
++ }
++ read(in_fd, buf, BLOCK_SIZE);
++ write(out_fd, buf, BLOCK_SIZE);
++#if !defined(CONFIG_ARCH_S390) && !defined(CONFIG_PPC_ISERIES)
++ if (!(i % 16)) {
++ printk("%c\b", rotator[rotate & 0x3]);
++ rotate++;
++ }
++#endif
++ }
++ printk("done.\n");
++ kfree(buf);
++
++successful_load:
++ res = 1;
++done:
++ close(in_fd);
++noclose_input:
++ close(out_fd);
++out:
++ sys_unlink("/dev/ram");
++#endif
++ return res;
++}
++
++static int __init rd_load_disk(int n)
++{
++#ifdef CONFIG_BLK_DEV_RAM
++ if (rd_prompt)
++ change_floppy("root floppy disk to be loaded into RAM disk");
++ create_dev("/dev/ram", MKDEV(RAMDISK_MAJOR, n), NULL);
++#endif
++ return rd_load_image("/dev/root");
++}
++
++#ifdef CONFIG_DEVFS_FS
++
++static void __init convert_name(char *prefix, char *name, char *p, int part)
++{
++ int host, bus, target, lun;
++ char dest[64];
++ char src[64];
++ char *base = p - 1;
++
++ /* Decode "c#b#t#u#" */
++ if (*p++ != 'c')
++ return;
++ host = simple_strtol(p, &p, 10);
++ if (*p++ != 'b')
++ return;
++ bus = simple_strtol(p, &p, 10);
++ if (*p++ != 't')
++ return;
++ target = simple_strtol(p, &p, 10);
++ if (*p++ != 'u')
++ return;
++ lun = simple_strtol(p, &p, 10);
++ if (!part)
++ sprintf(dest, "%s/host%d/bus%d/target%d/lun%d",
++ prefix, host, bus, target, lun);
++ else if (*p++ == 'p')
++ sprintf(dest, "%s/host%d/bus%d/target%d/lun%d/part%s",
++ prefix, host, bus, target, lun, p);
++ else
++ sprintf(dest, "%s/host%d/bus%d/target%d/lun%d/disc",
++ prefix, host, bus, target, lun);
++ *base = '\0';
++ sprintf(src, "/dev/%s", name);
++ sys_mkdir(src, 0755);
++ *base = '/';
++ sprintf(src, "/dev/%s", name);
++ sys_symlink(dest, src);
++}
++
++static void __init devfs_make_root(char *name)
++{
++
++ if (!strncmp(name, "sd/", 3))
++ convert_name("../scsi", name, name+3, 1);
++ else if (!strncmp(name, "sr/", 3))
++ convert_name("../scsi", name, name+3, 0);
++ else if (!strncmp(name, "ide/hd/", 7))
++ convert_name("..", name, name + 7, 1);
++ else if (!strncmp(name, "ide/cd/", 7))
++ convert_name("..", name, name + 7, 0);
++}
++#else
++static void __init devfs_make_root(char *name)
++{
++}
++#endif
++
++static void __init mount_root(void)
++{
++#ifdef CONFIG_ROOT_NFS
++ if (MAJOR(ROOT_DEV) == UNNAMED_MAJOR) {
++ if (mount_nfs_root()) {
++ sys_chdir("/root");
++ ROOT_DEV = current->fs->pwdmnt->mnt_sb->s_dev;
++ printk("VFS: Mounted root (nfs filesystem).\n");
++ return;
++ }
++ printk(KERN_ERR "VFS: Unable to mount root fs via NFS, trying floppy.\n");
++ ROOT_DEV = MKDEV(FLOPPY_MAJOR, 0);
++ }
++#endif
++ devfs_make_root(root_device_name);
++ create_dev("/dev/root", ROOT_DEV, root_device_name);
++#ifdef CONFIG_BLK_DEV_FD
++ if (MAJOR(ROOT_DEV) == FLOPPY_MAJOR) {
++ /* rd_doload is 2 for a dual initrd/ramload setup */
++ if (rd_doload==2) {
++ if (rd_load_disk(1)) {
++ ROOT_DEV = MKDEV(RAMDISK_MAJOR, 1);
++ create_dev("/dev/root", ROOT_DEV, NULL);
++ }
++ } else
++ change_floppy("root floppy");
++ }
++#endif
++#if defined(CONFIG_MTD_BLOCK) || defined(CONFIG_MTD_BLOCK_RO)
++ if (MAJOR(ROOT_DEV) == 31) {
++ /* rd_doload is for a ramload setup */
++ if (rd_doload) {
++ if (rd_load_disk(0)) {
++ ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
++ create_dev("/dev/root", ROOT_DEV, NULL);
++ }
++ }
++ }
++#endif
++ mount_block_root("/dev/root", root_mountflags);
++}
++
++#ifdef CONFIG_BLK_DEV_INITRD
++static int old_fd, root_fd;
++static int do_linuxrc(void * shell)
++{
++ static char *argv[] = { "linuxrc", NULL, };
++ extern char * envp_init[];
++
++ close(old_fd);
++ close(root_fd);
++ close(0);
++ close(1);
++ close(2);
++ setsid();
++ (void) open("/dev/console",O_RDWR,0);
++ (void) dup(0);
++ (void) dup(0);
++ return execve(shell, argv, envp_init);
++}
++
++#endif
++
++static void __init handle_initrd(void)
++{
++#ifdef CONFIG_BLK_DEV_INITRD
++ int ram0 = kdev_t_to_nr(MKDEV(RAMDISK_MAJOR,0));
++ int error;
++ int i, pid;
++
++ create_dev("/dev/root.old", ram0, NULL);
++ /* mount initrd on rootfs' /root */
++ mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
++ sys_mkdir("/old", 0700);
++ root_fd = open("/", 0, 0);
++ old_fd = open("/old", 0, 0);
++ /* move initrd over / and chdir/chroot in initrd root */
++ sys_chdir("/root");
++ sys_mount(".", "/", NULL, MS_MOVE, NULL);
++ sys_chroot(".");
++ mount_devfs_fs ();
++
++ pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
++ if (pid > 0) {
++ while (pid != wait(&i))
++ yield();
++ }
++
++ /* move initrd to rootfs' /old */
++ sys_fchdir(old_fd);
++ sys_mount("/", ".", NULL, MS_MOVE, NULL);
++ /* switch root and cwd back to / of rootfs */
++ sys_fchdir(root_fd);
++ sys_chroot(".");
++ sys_umount("/old/dev", 0);
++
++ if (real_root_dev == ram0) {
++ sys_chdir("/old");
++ return;
++ }
++
++ ROOT_DEV = real_root_dev;
++ mount_root();
++
++ printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
++ error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
++ if (!error)
++ printk("okay\n");
++ else {
++ int fd = open("/dev/root.old", O_RDWR, 0);
++ printk("failed\n");
++ printk(KERN_NOTICE "Unmounting old root\n");
++ sys_umount("/old", MNT_DETACH);
++ printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
++ if (fd < 0) {
++ error = fd;
++ } else {
++ error = sys_ioctl(fd, BLKFLSBUF, 0);
++ close(fd);
++ }
++ printk(!error ? "okay\n" : "failed\n");
++ }
++#endif
++}
++
++static int __init initrd_load(void)
++{
++#ifdef CONFIG_BLK_DEV_INITRD
++ create_dev("/dev/ram", MKDEV(RAMDISK_MAJOR, 0), NULL);
++ create_dev("/dev/initrd", MKDEV(RAMDISK_MAJOR, INITRD_MINOR), NULL);
++#endif
++ return rd_load_image("/dev/initrd");
++}
++
++/*
++ * Prepare the namespace - decide what/where to mount, load ramdisks, etc.
++ */
++void prepare_namespace(void)
++{
++ int is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR;
++#ifdef CONFIG_ALL_PPC
++ extern void arch_discover_root(void);
++ arch_discover_root();
++#endif /* CONFIG_ALL_PPC */
++#ifdef CONFIG_BLK_DEV_INITRD
++ if (!initrd_start)
++ mount_initrd = 0;
++ real_root_dev = ROOT_DEV;
++#endif
++ sys_mkdir("/dev", 0700);
++ sys_mkdir("/root", 0700);
++ sys_mknod("/dev/console", S_IFCHR|0600, MKDEV(TTYAUX_MAJOR, 1));
++#ifdef CONFIG_DEVFS_FS
++ sys_mount("devfs", "/dev", "devfs", 0, NULL);
++ do_devfs = 1;
++#endif
++
++ create_dev("/dev/root", ROOT_DEV, NULL);
++ if (mount_initrd) {
++ if (initrd_load() && ROOT_DEV != MKDEV(RAMDISK_MAJOR, 0)) {
++ handle_initrd();
++ goto out;
++ }
++ } else if (is_floppy && rd_doload && rd_load_disk(0))
++ ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
++ mount_root();
++out:
++ sys_umount("/dev", 0);
++ sys_mount(".", "/", NULL, MS_MOVE, NULL);
++ sys_chroot(".");
++ mount_devfs_fs ();
++}
++
++#if defined(BUILD_CRAMDISK) && defined(CONFIG_BLK_DEV_RAM)
++
++/*
++ * gzip declarations
++ */
++
++#define OF(args) args
++
++#ifndef memzero
++#define memzero(s, n) memset ((s), 0, (n))
++#endif
++
++typedef unsigned char uch;
++typedef unsigned short ush;
++typedef unsigned long ulg;
++
++#define INBUFSIZ 4096
++#define WSIZE 0x8000 /* window size--must be a power of two, and */
++ /* at least 32K for zip's deflate method */
++
++static uch *inbuf;
++static uch *window;
++
++static unsigned insize; /* valid bytes in inbuf */
++static unsigned inptr; /* index of next byte to be processed in inbuf */
++static unsigned outcnt; /* bytes in output buffer */
++static int exit_code;
++static long bytes_out;
++static int crd_infd, crd_outfd;
++
++#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf())
++
++/* Diagnostic functions (stubbed out) */
++#define Assert(cond,msg)
++#define Trace(x)
++#define Tracev(x)
++#define Tracevv(x)
++#define Tracec(c,x)
++#define Tracecv(c,x)
++
++#define STATIC static
++
++static int fill_inbuf(void);
++static void flush_window(void);
++static void *malloc(int size);
++static void free(void *where);
++static void error(char *m);
++static void gzip_mark(void **);
++static void gzip_release(void **);
++
++#include "../lib/inflate.c"
++
++static void __init *malloc(int size)
++{
++ return kmalloc(size, GFP_KERNEL);
++}
++
++static void __init free(void *where)
++{
++ kfree(where);
++}
++
++static void __init gzip_mark(void **ptr)
++{
++}
++
++static void __init gzip_release(void **ptr)
++{
++}
++
++
++/* ===========================================================================
++ * Fill the input buffer. This is called only when the buffer is empty
++ * and at least one byte is really needed.
++ */
++static int __init fill_inbuf(void)
++{
++ if (exit_code) return -1;
++
++ insize = read(crd_infd, inbuf, INBUFSIZ);
++ if (insize == 0) return -1;
++
++ inptr = 1;
++
++ return inbuf[0];
++}
++
++/* ===========================================================================
++ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
++ * (Used for the decompressed data only.)
++ */
++static void __init flush_window(void)
++{
++ ulg c = crc; /* temporary variable */
++ unsigned n;
++ uch *in, ch;
++
++ write(crd_outfd, window, outcnt);
++ in = window;
++ for (n = 0; n < outcnt; n++) {
++ ch = *in++;
++ c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
++ }
++ crc = c;
++ bytes_out += (ulg)outcnt;
++ outcnt = 0;
++}
++
++static void __init error(char *x)
++{
++ printk(KERN_ERR "%s", x);
++ exit_code = 1;
++}
++
++static int __init crd_load(int in_fd, int out_fd)
++{
++ int result;
++
++ insize = 0; /* valid bytes in inbuf */
++ inptr = 0; /* index of next byte to be processed in inbuf */
++ outcnt = 0; /* bytes in output buffer */
++ exit_code = 0;
++ bytes_out = 0;
++ crc = (ulg)0xffffffffL; /* shift register contents */
++
++ crd_infd = in_fd;
++ crd_outfd = out_fd;
++ inbuf = kmalloc(INBUFSIZ, GFP_KERNEL);
++ if (inbuf == 0) {
++ printk(KERN_ERR "RAMDISK: Couldn't allocate gzip buffer\n");
++ return -1;
++ }
++ window = kmalloc(WSIZE, GFP_KERNEL);
++ if (window == 0) {
++ printk(KERN_ERR "RAMDISK: Couldn't allocate gzip window\n");
++ kfree(inbuf);
++ return -1;
++ }
++ makecrc();
++ result = gunzip();
++ kfree(inbuf);
++ kfree(window);
++ return result;
++}
++
++#endif /* BUILD_CRAMDISK && CONFIG_BLK_DEV_RAM */
+diff -Nurb src/linux/linux.orig/kernel/ksyms.c src/linux/linux/kernel/ksyms.c
+--- src/linux/linux.orig/kernel/ksyms.c 2003-07-04 04:12:28.000000000 -0400
++++ src/linux/linux/kernel/ksyms.c 2004-05-25 21:12:24.000000000 -0400
+@@ -482,9 +482,9 @@
projects / openwrt.git / commitdiff