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-rw-r--r--package/mtd/src/Makefile14
-rw-r--r--package/mtd/src/crc32.c95
-rw-r--r--package/mtd/src/crc32.h19
-rw-r--r--package/mtd/src/jffs2.c303
-rw-r--r--package/mtd/src/jffs2.h217
-rw-r--r--package/mtd/src/mtd-api.h (renamed from package/mtd/src/mtd.h)0
-rw-r--r--package/mtd/src/mtd.c295
7 files changed, 809 insertions, 134 deletions
diff --git a/package/mtd/src/Makefile b/package/mtd/src/Makefile
index 99e3ad7..5ab7d7b 100644
--- a/package/mtd/src/Makefile
+++ b/package/mtd/src/Makefile
@@ -1,12 +1,6 @@
-# $Id$
-
-all: mtd
-
-%.o: %.c
- $(CC) -I. $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $^
-
-mtd: mtd.o
- $(CC) -o $@ $^
+CC = gcc
+CFLAGS += -Wall
+mtd: mtd.o jffs2.o crc32.o
clean:
- rm -f *.o mtd
+ rm -f *.o jffs2
diff --git a/package/mtd/src/crc32.c b/package/mtd/src/crc32.c
new file mode 100644
index 0000000..6b1e50c
--- /dev/null
+++ b/package/mtd/src/crc32.c
@@ -0,0 +1,95 @@
+/*
+ * COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or
+ * code or tables extracted from it, as desired without restriction.
+ *
+ * First, the polynomial itself and its table of feedback terms. The
+ * polynomial is
+ * X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0
+ *
+ * Note that we take it "backwards" and put the highest-order term in
+ * the lowest-order bit. The X^32 term is "implied"; the LSB is the
+ * X^31 term, etc. The X^0 term (usually shown as "+1") results in
+ * the MSB being 1
+ *
+ * Note that the usual hardware shift register implementation, which
+ * is what we're using (we're merely optimizing it by doing eight-bit
+ * chunks at a time) shifts bits into the lowest-order term. In our
+ * implementation, that means shifting towards the right. Why do we
+ * do it this way? Because the calculated CRC must be transmitted in
+ * order from highest-order term to lowest-order term. UARTs transmit
+ * characters in order from LSB to MSB. By storing the CRC this way
+ * we hand it to the UART in the order low-byte to high-byte; the UART
+ * sends each low-bit to hight-bit; and the result is transmission bit
+ * by bit from highest- to lowest-order term without requiring any bit
+ * shuffling on our part. Reception works similarly
+ *
+ * The feedback terms table consists of 256, 32-bit entries. Notes
+ *
+ * The table can be generated at runtime if desired; code to do so
+ * is shown later. It might not be obvious, but the feedback
+ * terms simply represent the results of eight shift/xor opera
+ * tions for all combinations of data and CRC register values
+ *
+ * The values must be right-shifted by eight bits by the "updcrc
+ * logic; the shift must be unsigned (bring in zeroes). On some
+ * hardware you could probably optimize the shift in assembler by
+ * using byte-swap instructions
+ * polynomial $edb88320
+ */
+
+#include <stdint.h>
+
+const uint32_t crc32_table[256] = {
+ 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+ 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+ 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+ 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+ 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+ 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+ 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+ 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+ 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+ 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+ 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+ 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+ 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+ 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+ 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+ 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+ 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+ 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+ 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+ 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+ 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+ 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+ 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+ 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+ 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+ 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+ 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+ 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+ 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+ 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+ 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+ 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+ 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+ 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+ 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+ 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+ 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+ 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+ 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+ 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+ 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+ 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+ 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+ 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+ 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+ 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+ 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+ 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+ 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+ 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+ 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+ 0x2d02ef8dL
+};
diff --git a/package/mtd/src/crc32.h b/package/mtd/src/crc32.h
new file mode 100644
index 0000000..ee3145b
--- /dev/null
+++ b/package/mtd/src/crc32.h
@@ -0,0 +1,19 @@
+#ifndef CRC32_H
+#define CRC32_H
+
+#include <stdint.h>
+
+extern const uint32_t crc32_table[256];
+
+/* Return a 32-bit CRC of the contents of the buffer. */
+
+ static inline uint32_t
+crc32(uint32_t val, const void *ss, int len)
+{
+ const unsigned char *s = ss;
+ while (--len >= 0)
+ val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
+ return val;
+}
+
+#endif
diff --git a/package/mtd/src/jffs2.c b/package/mtd/src/jffs2.c
new file mode 100644
index 0000000..7b68ae5
--- /dev/null
+++ b/package/mtd/src/jffs2.c
@@ -0,0 +1,303 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <unistd.h>
+#include "jffs2.h"
+#include "crc32.h"
+#include "mtd.h"
+
+#define PAD(x) (((x)+3)&~3)
+
+#define CLEANMARKER "\x85\x19\x03\x20\x0c\x00\x00\x00\xb1\xb0\x1e\xe4"
+#define JFFS2_EOF "\xde\xad\xc0\xde"
+
+static int last_ino = 0;
+static int last_version = 0;
+static char *buf = NULL;
+static int ofs = 0;
+static int outfd = 0;
+static int mtdofs = 0;
+
+static void prep_eraseblock(void);
+
+static void pad(int size)
+{
+ if ((ofs % size == 0) && (ofs < erasesize))
+ return;
+
+ if (ofs < erasesize) {
+ memset(buf + ofs, 0xff, (size - (ofs % size)));
+ ofs += (size - (ofs % size));
+ }
+ ofs = ofs % erasesize;
+ if (ofs == 0) {
+ mtd_erase_block(outfd, mtdofs);
+ write(outfd, buf, erasesize);
+ mtdofs += erasesize;
+ }
+}
+
+static inline int rbytes(void)
+{
+ return erasesize - (ofs % erasesize);
+}
+
+static inline void add_data(char *ptr, int len)
+{
+ if (ofs + len > erasesize) {
+ pad(erasesize);
+ prep_eraseblock();
+ }
+ memcpy(buf + ofs, ptr, len);
+ ofs += len;
+}
+
+static void prep_eraseblock(void)
+{
+ if (ofs > 0)
+ return;
+
+ add_data(CLEANMARKER, sizeof(CLEANMARKER) - 1);
+}
+
+static int add_dirent(char *name, char type, int parent)
+{
+ struct jffs2_raw_dirent *de;
+
+ if (ofs - erasesize < sizeof(struct jffs2_raw_dirent) + strlen(name))
+ pad(erasesize);
+
+ prep_eraseblock();
+ last_ino++;
+ memset(buf + ofs, 0, sizeof(struct jffs2_raw_dirent));
+ de = (struct jffs2_raw_dirent *) (buf + ofs);
+
+ de->magic = JFFS2_MAGIC_BITMASK;
+ de->nodetype = JFFS2_NODETYPE_DIRENT;
+ de->type = type;
+ de->name_crc = crc32(0, name, strlen(name));
+ de->ino = last_ino++;
+ de->pino = parent;
+ de->totlen = sizeof(*de) + strlen(name);
+ de->hdr_crc = crc32(0, (void *) de, sizeof(struct jffs2_unknown_node) - 4);
+ de->version = last_version++;
+ de->mctime = 0;
+ de->nsize = strlen(name);
+ de->node_crc = crc32(0, (void *) de, sizeof(*de) - 8);
+ memcpy(de->name, name, strlen(name));
+
+ ofs += sizeof(struct jffs2_raw_dirent) + de->nsize;
+ pad(4);
+
+ return de->ino;
+}
+
+static int add_dir(char *name, int parent)
+{
+ struct jffs2_raw_inode ri;
+ int inode;
+
+ inode = add_dirent(name, IFTODT(S_IFDIR), parent);
+
+ if (rbytes() < sizeof(ri))
+ pad(erasesize);
+ prep_eraseblock();
+
+ memset(&ri, 0, sizeof(ri));
+ ri.magic = JFFS2_MAGIC_BITMASK;
+ ri.nodetype = JFFS2_NODETYPE_INODE;
+ ri.totlen = sizeof(ri);
+ ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node) - 4);
+
+ ri.ino = inode;
+ ri.mode = S_IFDIR | 0755;
+ ri.uid = ri.gid = 0;
+ ri.atime = ri.ctime = ri.mtime = 0;
+ ri.isize = ri.csize = ri.dsize = 0;
+ ri.version = 1;
+ ri.node_crc = crc32(0, &ri, sizeof(ri) - 8);
+ ri.data_crc = 0;
+
+ add_data((char *) &ri, sizeof(ri));
+ pad(4);
+ return inode;
+}
+
+static void add_file(char *name, int parent)
+{
+ int inode, f_offset = 0, fd;
+ struct jffs2_raw_inode ri;
+ struct stat st;
+ char wbuf[4096], *fname;
+ FILE *f;
+
+ if (stat(name, &st)) {
+ fprintf(stderr, "File %s does not exist\n", name);
+ return;
+ }
+
+ fname = strrchr(name, '/');
+ if (fname)
+ fname++;
+ else
+ fname = name;
+
+ inode = add_dirent(name, IFTODT(S_IFREG), parent);
+ memset(&ri, 0, sizeof(ri));
+ ri.magic = JFFS2_MAGIC_BITMASK;
+ ri.nodetype = JFFS2_NODETYPE_INODE;
+
+ ri.ino = inode;
+ ri.mode = st.st_mode;
+ ri.uid = ri.gid = 0;
+ ri.atime = st.st_atime;
+ ri.ctime = st.st_ctime;
+ ri.mtime = st.st_mtime;
+ ri.isize = st.st_size;
+ ri.compr = 0;
+ ri.usercompr = 0;
+
+ fd = open(name, 0);
+ if (fd <= 0) {
+ fprintf(stderr, "File %s does not exist\n", name);
+ return;
+ }
+
+ for (;;) {
+ int len = 0;
+
+ for (;;) {
+ len = rbytes() - sizeof(ri);
+ if (len > 128)
+ break;
+
+ pad(erasesize);
+ prep_eraseblock();
+ }
+
+ if (len > sizeof(wbuf))
+ len = sizeof(wbuf);
+
+ len = read(fd, wbuf, len);
+ if (len <= 0)
+ break;
+
+ ri.totlen = sizeof(ri) + len;
+ ri.hdr_crc = crc32(0, &ri, sizeof(struct jffs2_unknown_node) - 4);
+ ri.version = ++last_version;
+ ri.offset = f_offset;
+ ri.csize = ri.dsize = len;
+ ri.node_crc = crc32(0, &ri, sizeof(ri) - 8);
+ ri.data_crc = crc32(0, wbuf, len);
+ f_offset += len;
+ add_data((char *) &ri, sizeof(ri));
+ add_data(wbuf, len);
+ pad(4);
+ prep_eraseblock();
+ }
+
+ close(fd);
+}
+
+int mtd_write_jffs2(char *mtd, char *filename, char *dir)
+{
+ int target_ino = 0;
+ int err = -1, fdeof = 0;
+ off_t offset;
+
+ outfd = mtd_check_open(mtd);
+ if (!outfd)
+ return -1;
+
+ if (quiet < 2)
+ fprintf(stderr, "Appending %s to jffs2 partition %s\n", filename, mtd);
+
+ buf = malloc(erasesize);
+ if (!buf) {
+ fprintf(stderr, "Out of memory!\n");
+ goto done;
+ }
+
+ /* parse the structure of the jffs2 first
+ * locate the directory that the file is going to be placed in */
+ for(;;) {
+ struct jffs2_unknown_node *node = (struct jffs2_unknown_node *) buf;
+ unsigned int ofs = 0;
+
+ if (read(outfd, buf, erasesize) != erasesize) {
+ fdeof = 1;
+ break;
+ }
+ mtdofs += erasesize;
+
+ if (node->magic == 0x8519) {
+ fprintf(stderr, "Error: wrong endianness filesystem\n");
+ goto done;
+ }
+
+ /* assume no magic == end of filesystem
+ * the filesystem will probably end with be32(0xdeadc0de) */
+ if (node->magic != 0x1985)
+ break;
+
+ while (ofs < erasesize) {
+ node = (struct jffs2_unknown_node *) (buf + ofs);
+ if (node->magic == 0x1985) {
+ ofs += PAD(node->totlen);
+ if (node->nodetype == JFFS2_NODETYPE_DIRENT) {
+ struct jffs2_raw_dirent *de = (struct jffs2_raw_dirent *) node;
+
+ /* is this the right directory name and is it a subdirectory of / */
+ if ((de->pino == 1) && !strncmp(de->name, dir, de->nsize))
+ target_ino = de->ino;
+
+ /* store the last inode and version numbers for adding extra files */
+ if (last_ino < de->ino)
+ last_ino = de->ino;
+ if (last_version < de->version)
+ last_version = de->version;
+ }
+ } else {
+ ofs = ~0;
+ }
+ }
+ }
+
+ if (fdeof) {
+ fprintf(stderr, "Error: No room for additional data\n");
+ goto done;
+ }
+
+ /* jump back one eraseblock */
+ mtdofs -= erasesize;
+ lseek(outfd, mtdofs, SEEK_SET);
+
+ ofs = 0;
+
+ if (!last_ino)
+ last_ino = 1;
+
+ if (!target_ino)
+ target_ino = add_dir(dir, 1);
+
+ add_file(filename, target_ino);
+ pad(erasesize);
+
+ /* add eof marker, pad to eraseblock size and write the data */
+ add_data(JFFS2_EOF, sizeof(JFFS2_EOF) - 1);
+ pad(erasesize);
+
+ err = 0;
+
+done:
+ close(outfd);
+ if (buf)
+ free(buf);
+
+ return err;
+}
diff --git a/package/mtd/src/jffs2.h b/package/mtd/src/jffs2.h
new file mode 100644
index 0000000..70d4619
--- /dev/null
+++ b/package/mtd/src/jffs2.h
@@ -0,0 +1,217 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2001-2003 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@infradead.org>
+ *
+ * For licensing information, see the file 'LICENCE' in the
+ * jffs2 directory.
+ *
+ * $Id: jffs2.h,v 1.38 2005/09/26 11:37:23 havasi Exp $
+ *
+ */
+
+#ifndef __LINUX_JFFS2_H__
+#define __LINUX_JFFS2_H__
+
+#define JFFS2_SUPER_MAGIC 0x72b6
+
+/* You must include something which defines the C99 uintXX_t types.
+ We don't do it from here because this file is used in too many
+ different environments. */
+
+/* Values we may expect to find in the 'magic' field */
+#define JFFS2_OLD_MAGIC_BITMASK 0x1984
+#define JFFS2_MAGIC_BITMASK 0x1985
+#define KSAMTIB_CIGAM_2SFFJ 0x8519 /* For detecting wrong-endian fs */
+#define JFFS2_EMPTY_BITMASK 0xffff
+#define JFFS2_DIRTY_BITMASK 0x0000
+
+/* Summary node MAGIC marker */
+#define JFFS2_SUM_MAGIC 0x02851885
+
+/* We only allow a single char for length, and 0xFF is empty flash so
+ we don't want it confused with a real length. Hence max 254.
+*/
+#define JFFS2_MAX_NAME_LEN 254
+
+/* How small can we sensibly write nodes? */
+#define JFFS2_MIN_DATA_LEN 128
+
+#define JFFS2_COMPR_NONE 0x00
+#define JFFS2_COMPR_ZERO 0x01
+#define JFFS2_COMPR_RTIME 0x02
+#define JFFS2_COMPR_RUBINMIPS 0x03
+#define JFFS2_COMPR_COPY 0x04
+#define JFFS2_COMPR_DYNRUBIN 0x05
+#define JFFS2_COMPR_ZLIB 0x06
+/* Compatibility flags. */
+#define JFFS2_COMPAT_MASK 0xc000 /* What do to if an unknown nodetype is found */
+#define JFFS2_NODE_ACCURATE 0x2000
+/* INCOMPAT: Fail to mount the filesystem */
+#define JFFS2_FEATURE_INCOMPAT 0xc000
+/* ROCOMPAT: Mount read-only */
+#define JFFS2_FEATURE_ROCOMPAT 0x8000
+/* RWCOMPAT_COPY: Mount read/write, and copy the node when it's GC'd */
+#define JFFS2_FEATURE_RWCOMPAT_COPY 0x4000
+/* RWCOMPAT_DELETE: Mount read/write, and delete the node when it's GC'd */
+#define JFFS2_FEATURE_RWCOMPAT_DELETE 0x0000
+
+#define JFFS2_NODETYPE_DIRENT (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 1)
+#define JFFS2_NODETYPE_INODE (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 2)
+#define JFFS2_NODETYPE_CLEANMARKER (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
+#define JFFS2_NODETYPE_PADDING (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 4)
+
+#define JFFS2_NODETYPE_SUMMARY (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 6)
+
+#define JFFS2_NODETYPE_XATTR (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 8)
+#define JFFS2_NODETYPE_XREF (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 9)
+
+/* XATTR Related */
+#define JFFS2_XPREFIX_USER 1 /* for "user." */
+#define JFFS2_XPREFIX_SECURITY 2 /* for "security." */
+#define JFFS2_XPREFIX_ACL_ACCESS 3 /* for "system.posix_acl_access" */
+#define JFFS2_XPREFIX_ACL_DEFAULT 4 /* for "system.posix_acl_default" */
+#define JFFS2_XPREFIX_TRUSTED 5 /* for "trusted.*" */
+
+#define JFFS2_ACL_VERSION 0x0001
+
+// Maybe later...
+//#define JFFS2_NODETYPE_CHECKPOINT (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
+//#define JFFS2_NODETYPE_OPTIONS (JFFS2_FEATURE_RWCOMPAT_COPY | JFFS2_NODE_ACCURATE | 4)
+
+
+#define JFFS2_INO_FLAG_PREREAD 1 /* Do read_inode() for this one at
+ mount time, don't wait for it to
+ happen later */
+#define JFFS2_INO_FLAG_USERCOMPR 2 /* User has requested a specific
+ compression type */
+
+
+/* These can go once we've made sure we've caught all uses without
+ byteswapping */
+
+typedef uint32_t jint32_t;
+
+typedef uint32_t jmode_t;
+
+typedef uint16_t jint16_t;
+
+struct jffs2_unknown_node
+{
+ /* All start like this */
+ jint16_t magic;
+ jint16_t nodetype;
+ jint32_t totlen; /* So we can skip over nodes we don't grok */
+ jint32_t hdr_crc;
+};
+
+struct jffs2_raw_dirent
+{
+ jint16_t magic;
+ jint16_t nodetype; /* == JFFS2_NODETYPE_DIRENT */
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t pino;
+ jint32_t version;
+ jint32_t ino; /* == zero for unlink */
+ jint32_t mctime;
+ uint8_t nsize;
+ uint8_t type;
+ uint8_t unused[2];
+ jint32_t node_crc;
+ jint32_t name_crc;
+ uint8_t name[0];
+};
+
+/* The JFFS2 raw inode structure: Used for storage on physical media. */
+/* The uid, gid, atime, mtime and ctime members could be longer, but
+ are left like this for space efficiency. If and when people decide
+ they really need them extended, it's simple enough to add support for
+ a new type of raw node.
+*/
+struct jffs2_raw_inode
+{
+ jint16_t magic; /* A constant magic number. */
+ jint16_t nodetype; /* == JFFS2_NODETYPE_INODE */
+ jint32_t totlen; /* Total length of this node (inc data, etc.) */
+ jint32_t hdr_crc;
+ jint32_t ino; /* Inode number. */
+ jint32_t version; /* Version number. */
+ jmode_t mode; /* The file's type or mode. */
+ jint16_t uid; /* The file's owner. */
+ jint16_t gid; /* The file's group. */
+ jint32_t isize; /* Total resultant size of this inode (used for truncations) */
+ jint32_t atime; /* Last access time. */
+ jint32_t mtime; /* Last modification time. */
+ jint32_t ctime; /* Change time. */
+ jint32_t offset; /* Where to begin to write. */
+ jint32_t csize; /* (Compressed) data size */
+ jint32_t dsize; /* Size of the node's data. (after decompression) */
+ uint8_t compr; /* Compression algorithm used */
+ uint8_t usercompr; /* Compression algorithm requested by the user */
+ jint16_t flags; /* See JFFS2_INO_FLAG_* */
+ jint32_t data_crc; /* CRC for the (compressed) data. */
+ jint32_t node_crc; /* CRC for the raw inode (excluding data) */
+ uint8_t data[0];
+};
+
+struct jffs2_raw_xattr {
+ jint16_t magic;
+ jint16_t nodetype; /* = JFFS2_NODETYPE_XATTR */
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t xid; /* XATTR identifier number */
+ jint32_t version;
+ uint8_t xprefix;
+ uint8_t name_len;
+ jint16_t value_len;
+ jint32_t data_crc;
+ jint32_t node_crc;
+ uint8_t data[0];
+} __attribute__((packed));
+
+struct jffs2_raw_xref
+{
+ jint16_t magic;
+ jint16_t nodetype; /* = JFFS2_NODETYPE_XREF */
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t ino; /* inode number */
+ jint32_t xid; /* XATTR identifier number */
+ jint32_t xseqno; /* xref sequencial number */
+ jint32_t node_crc;
+} __attribute__((packed));
+
+struct jffs2_raw_summary
+{
+ jint16_t magic;
+ jint16_t nodetype; /* = JFFS2_NODETYPE_SUMMARY */
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t sum_num; /* number of sum entries*/
+ jint32_t cln_mkr; /* clean marker size, 0 = no cleanmarker */
+ jint32_t padded; /* sum of the size of padding nodes */
+ jint32_t sum_crc; /* summary information crc */
+ jint32_t node_crc; /* node crc */
+ jint32_t sum[0]; /* inode summary info */
+};
+
+union jffs2_node_union
+{
+ struct jffs2_raw_inode i;
+ struct jffs2_raw_dirent d;
+ struct jffs2_raw_xattr x;
+ struct jffs2_raw_xref r;
+ struct jffs2_raw_summary s;
+ struct jffs2_unknown_node u;
+};
+
+/* Data payload for device nodes. */
+union jffs2_device_node {
+ jint16_t old;
+ jint32_t new;
+};
+
+#endif /* __LINUX_JFFS2_H__ */
diff --git a/package/mtd/src/mtd.h b/package/mtd/src/mtd-api.h
index 6ce6261..6ce6261 100644
--- a/package/mtd/src/mtd.h
+++ b/package/mtd/src/mtd-api.h
diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index 85b069f..92018c2 100644
--- a/package/mtd/src/mtd.c
+++ b/package/mtd/src/mtd.c
@@ -28,6 +28,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
+#include <signal.h>
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include <fcntl.h>
@@ -43,7 +44,7 @@
#include <sys/reboot.h>
#include <linux/reboot.h>
-#include "mtd.h"
+#include "mtd-api.h"
#define TRX_MAGIC 0x30524448 /* "HDR0" */
#define BUFSIZE (16 * 1024)
@@ -51,6 +52,8 @@
#define DEBUG
+#define JFFS2_DEFAULT_DIR "tmp"
+
#define SYSTYPE_UNKNOWN 0
#define SYSTYPE_BROADCOM 1
/* to be continued */
@@ -63,16 +66,86 @@ struct trx_header {
uint32_t offsets[3]; /* Offsets of partitions from start of header */
};
-char buf[BUFSIZE];
-int buflen;
+static char buf[BUFSIZE];
+static char *imagefile;
+static int buflen;
int quiet;
+int mtdsize = 0;
+int erasesize = 0;
+
+int mtd_open(const char *mtd)
+{
+ FILE *fp;
+ char dev[PATH_MAX];
+ int i;
+ int ret;
+ int flags = O_RDWR | O_SYNC;
+
+ if ((fp = fopen("/proc/mtd", "r"))) {
+ while (fgets(dev, sizeof(dev), fp)) {
+ if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
+ snprintf(dev, sizeof(dev), "/dev/mtd/%d", i);
+ if ((ret=open(dev, flags))<0) {
+ snprintf(dev, sizeof(dev), "/dev/mtd%d", i);
+ ret=open(dev, flags);
+ }
+ fclose(fp);
+ return ret;
+ }
+ }
+ fclose(fp);
+ }
+
+ return open(mtd, flags);
+}
+
+int mtd_check_open(const char *mtd)
+{
+ struct mtd_info_user mtdInfo;
+ int fd;
+
+ fd = mtd_open(mtd);
+ if(fd < 0) {
+ fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+ return 0;
+ }
+
+ if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
+ fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
+ close(fd);
+ return 0;
+ }
+ mtdsize = mtdInfo.size;
+ erasesize = mtdInfo.erasesize;
+
+ return fd;
+}
+
+int mtd_erase_block(int fd, int offset)
+{
+ struct erase_info_user mtdEraseInfo;
+
+ mtdEraseInfo.start = offset;
+ mtdEraseInfo.length = erasesize;
+ ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
+ if (ioctl (fd, MEMERASE, &mtdEraseInfo) < 0) {
+ fprintf(stderr, "Erasing mtd failed.\n");
+ exit(1);
+ }
+}
+
+int mtd_write_buffer(int fd, char *buf, int offset, int length)
+{
+ lseek(fd, offset, SEEK_SET);
+ write(fd, buf, length);
+}
+
#ifdef target_brcm
-int
+static int
image_check_brcm(int imagefd, const char *mtd)
{
struct trx_header *trx = (struct trx_header *) buf;
- struct mtd_info_user mtdInfo;
int fd;
if (strcmp(mtd, "linux") != 0)
@@ -94,18 +167,13 @@ image_check_brcm(int imagefd, const char *mtd)
}
/* check if image fits to mtd device */
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
+ fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- exit(1);
- }
-
- if(mtdInfo.size < trx->len) {
+ if(mtdsize < trx->len) {
fprintf(stderr, "Image too big for partition: %s\n", mtd);
close(fd);
return 0;
@@ -116,7 +184,7 @@ image_check_brcm(int imagefd, const char *mtd)
}
#endif /* target_brcm */
-int
+static int
image_check(int imagefd, const char *mtd)
{
int fd, systype;
@@ -129,48 +197,35 @@ image_check(int imagefd, const char *mtd)
#endif
}
-int mtd_check(char *mtd)
+static int mtd_check(const char *mtd)
{
- struct mtd_info_user mtdInfo;
int fd;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+ fd = mtd_check_open(mtd);
+ if (!fd)
return 0;
- }
-
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
- return 0;
- }
close(fd);
return 1;
}
-int
+static int
mtd_unlock(const char *mtd)
{
int fd;
- struct mtd_info_user mtdInfo;
struct erase_info_user mtdLockInfo;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
+ fd = mtd_check_open(mtd);
+ if(fd <= 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
- exit(1);
- }
+ if (quiet < 2)
+ fprintf(stderr, "Unlocking %s ...\n", mtd);
mtdLockInfo.start = 0;
- mtdLockInfo.length = mtdInfo.size;
+ mtdLockInfo.length = mtdsize;
if(ioctl(fd, MEMUNLOCK, &mtdLockInfo)) {
close(fd);
return 0;
@@ -180,56 +235,26 @@ mtd_unlock(const char *mtd)
return 0;
}
-int
-mtd_open(const char *mtd, int flags)
-{
- FILE *fp;
- char dev[PATH_MAX];
- int i;
- int ret;
-
- if ((fp = fopen("/proc/mtd", "r"))) {
- while (fgets(dev, sizeof(dev), fp)) {
- if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
- snprintf(dev, sizeof(dev), "/dev/mtd/%d", i);
- if ((ret=open(dev, flags))<0) {
- snprintf(dev, sizeof(dev), "/dev/mtd%d", i);
- ret=open(dev, flags);
- }
- fclose(fp);
- return ret;
- }
- }
- fclose(fp);
- }
-
- return open(mtd, flags);
-}
-
-int
+static int
mtd_erase(const char *mtd)
{
int fd;
- struct mtd_info_user mtdInfo;
struct erase_info_user mtdEraseInfo;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", mtd);
- exit(1);
- }
+ if (quiet < 2)
+ fprintf(stderr, "Erasing %s ...\n", mtd);
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
+ fd = mtd_check_open(mtd);
+ if(fd <= 0) {
+ fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
- mtdEraseInfo.length = mtdInfo.erasesize;
+ mtdEraseInfo.length = erasesize;
for (mtdEraseInfo.start = 0;
- mtdEraseInfo.start < mtdInfo.size;
- mtdEraseInfo.start += mtdInfo.erasesize) {
+ mtdEraseInfo.start < mtdsize;
+ mtdEraseInfo.start += erasesize) {
ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
if(ioctl(fd, MEMERASE, &mtdEraseInfo))
@@ -241,46 +266,50 @@ mtd_erase(const char *mtd)
}
-int
+static int
mtd_refresh(const char *mtd)
{
int fd;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
- if(fd < 0) {
+ if (quiet < 2)
+ fprintf(stderr, "Refreshing mtd partition %s ... ", mtd);
+
+ fd = mtd_check_open(mtd);
+ if(fd <= 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
+
if (ioctl(fd, MTDREFRESH, NULL)) {
fprintf(stderr, "Failed to refresh the MTD device\n");
close(fd);
exit(1);
}
close(fd);
+
+ if (quiet < 2)
+ fprintf(stderr, "\n");
+
return 0;
}
-int
+static int
mtd_write(int imagefd, const char *mtd)
{
int fd, i, result;
size_t r, w, e;
- struct mtd_info_user mtdInfo;
struct erase_info_user mtdEraseInfo;
int ret = 0;
- fd = mtd_open(mtd, O_RDWR | O_SYNC);
+ fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
-
- if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
- close(fd);
- exit(1);
- }
+ if (quiet < 2)
+ fprintf(stderr, "Writing from %s to %s ... ", imagefile, mtd);
+
r = w = e = 0;
if (!quiet)
fprintf(stderr, " [ ]");
@@ -296,17 +325,13 @@ mtd_write(int imagefd, const char *mtd)
/* need to erase the next block before writing data to it */
while (w > e) {
- mtdEraseInfo.start = e;
- mtdEraseInfo.length = mtdInfo.erasesize;
-
if (!quiet)
fprintf(stderr, "\b\b\b[e]");
+
+ mtd_erase_block(fd, e);
+
/* erase the chunk */
- if (ioctl (fd,MEMERASE,&mtdEraseInfo) < 0) {
- fprintf(stderr, "Erasing mtd failed: %s\n", mtd);
- exit(1);
- }
- e += mtdInfo.erasesize;
+ e += erasesize;
}
if (!quiet)
@@ -327,11 +352,14 @@ mtd_write(int imagefd, const char *mtd)
if (!quiet)
fprintf(stderr, "\b\b\b\b");
+ if (quiet < 2)
+ fprintf(stderr, "\n");
+
close(fd);
return 0;
}
-void usage(void)
+static void usage(void)
{
fprintf(stderr, "Usage: mtd [<options> ...] <command> [<arguments> ...] <device>\n\n"
"The device is in the format of mtdX (eg: mtd4) or its label.\n"
@@ -340,26 +368,44 @@ void usage(void)
" refresh refresh mtd partition\n"
" erase erase all data on device\n"
" write <imagefile>|- write <imagefile> (use - for stdin) to device\n"
+ " jffs2write <file> append <file> to the jffs2 partition on the device\n"
"Following options are available:\n"
" -q quiet mode (once: no [w] on writing,\n"
" twice: no status messages)\n"
" -r reboot after successful command\n"
" -f force write without trx checks\n"
- " -e <device> erase <device> before executing the command\n\n"
+ " -e <device> erase <device> before executing the command\n"
+ " -d <name> directory for jffs2write, defaults to \"tmp\"\n"
+ "\n"
"Example: To write linux.trx to mtd4 labeled as linux and reboot afterwards\n"
" mtd -r write linux.trx linux\n\n");
exit(1);
}
+static void do_reboot(void)
+{
+ fprintf(stderr, "Rebooting ...\n");
+ fflush(stderr);
+
+ /* try regular reboot method first */
+ system("/sbin/reboot");
+ sleep(2);
+
+ /* if we're still alive at this point, force the kernel to reboot */
+ syscall(SYS_reboot,LINUX_REBOOT_MAGIC1,LINUX_REBOOT_MAGIC2,LINUX_REBOOT_CMD_RESTART,NULL);
+}
+
int main (int argc, char **argv)
{
int ch, i, boot, unlock, imagefd, force, unlocked;
- char *erase[MAX_ARGS], *device, *imagefile;
+ char *erase[MAX_ARGS], *device;
+ char *jffs2dir = JFFS2_DEFAULT_DIR;
enum {
CMD_ERASE,
CMD_WRITE,
CMD_UNLOCK,
- CMD_REFRESH
+ CMD_REFRESH,
+ CMD_JFFS2WRITE
} cmd;
erase[0] = NULL;
@@ -368,7 +414,7 @@ int main (int argc, char **argv)
buflen = 0;
quiet = 0;
- while ((ch = getopt(argc, argv, "frqe:")) != -1)
+ while ((ch = getopt(argc, argv, "frqe:d:")) != -1)
switch (ch) {
case 'f':
force = 1;
@@ -387,7 +433,9 @@ int main (int argc, char **argv)
erase[i++] = optarg;
erase[i] = NULL;
break;
-
+ case 'd':
+ jffs2dir = optarg;
+ break;
case '?':
default:
usage();
@@ -434,6 +482,15 @@ int main (int argc, char **argv)
exit(1);
}
}
+ } else if ((strcmp(argv[0], "jffs2write") == 0) && (argc == 3)) {
+ cmd = CMD_JFFS2WRITE;
+ device = argv[2];
+
+ imagefile = argv[1];
+ if (!mtd_check(device)) {
+ fprintf(stderr, "Can't open device for writing!\n");
+ exit(1);
+ }
} else {
usage();
}
@@ -443,53 +500,43 @@ int main (int argc, char **argv)
i = 0;
unlocked = 0;
while (erase[i] != NULL) {
- if (quiet < 2)
- fprintf(stderr, "Unlocking %s ...\n", erase[i]);
mtd_unlock(erase[i]);
- if (quiet < 2)
- fprintf(stderr, "Erasing %s ...\n", erase[i]);
mtd_erase(erase[i]);
if (strcmp(erase[i], device) == 0)
unlocked = 1;
i++;
}
- if (!unlocked) {
- if (quiet < 2)
- fprintf(stderr, "Unlocking %s ...\n", device);
- mtd_unlock(device);
- }
switch (cmd) {
case CMD_UNLOCK:
+ if (!unlocked)
+ mtd_unlock(device);
break;
case CMD_ERASE:
- if (quiet < 2)
- fprintf(stderr, "Erasing %s ...\n", device);
+ if (!unlocked)
+ mtd_unlock(device);
mtd_erase(device);
break;
case CMD_WRITE:
- if (quiet < 2)
- fprintf(stderr, "Writing from %s to %s ... ", imagefile, device);
+ if (!unlocked)
+ mtd_unlock(device);
mtd_write(imagefd, device);
- if (quiet < 2)
- fprintf(stderr, "\n");
+ break;
+ case CMD_JFFS2WRITE:
+ if (!unlocked)
+ mtd_unlock(device);
+ mtd_write_jffs2(device, imagefile, jffs2dir);
break;
case CMD_REFRESH:
- if (quiet < 2)
- fprintf(stderr, "Refreshing mtd partition %s ... ");
mtd_refresh(device);
- if (quiet < 2)
- fprintf(stderr, "\n");
break;
}
sync();
- if (boot) {
- fprintf(stderr, "Rebooting ...\n");
- fflush(stderr);
- syscall(SYS_reboot,LINUX_REBOOT_MAGIC1,LINUX_REBOOT_MAGIC2,LINUX_REBOOT_CMD_RESTART,NULL);
- }
+ if (boot)
+ do_reboot();
+
return 0;
}
generated by cgit v1.1 at 2024-11-23 01:38:21 +0000