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-rw-r--r--package/openwrt/jffs2root.c108
-rw-r--r--package/openwrt/trx.c3
-rw-r--r--target/Makefile.in7
3 files changed, 116 insertions, 2 deletions
diff --git a/package/openwrt/jffs2root.c b/package/openwrt/jffs2root.c
new file mode 100644
index 000000000..e74c89a9b
--- /dev/null
+++ b/package/openwrt/jffs2root.c
@@ -0,0 +1,108 @@
+/*
+ * jffs2root.c
+ *
+ * Copyright (C) 2005 Mike Baker
+ *
+ * $Id$
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+
+#define FILENAME "/dev/mtdblock/1"
+
+struct trx_header {
+ unsigned magic; /* "HDR0" */
+ unsigned len; /* Length of file including header */
+ unsigned crc32; /* 32-bit CRC from flag_version to end of file */
+ unsigned flag_version; /* 0:15 flags, 16:31 version */
+ unsigned offsets[3]; /* Offsets of partitions from start of header */
+};
+
+unsigned long *crc32;
+
+void init_crc32()
+{
+ unsigned long crc;
+ unsigned long poly = 0xEDB88320L;
+ int n, bit;
+ crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long));
+ for (n = 0; n < 256; n++) {
+ crc = (unsigned long) n;
+ for (bit = 0; bit < 8; bit++)
+ crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
+ crc32[n] = crc;
+ }
+}
+
+unsigned int crc32buf(char *buf, size_t len)
+{
+ unsigned int crc = 0xFFFFFFFF;
+ for (; len; len--, buf++)
+ crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+ return crc;
+}
+
+int main(int argc, char **argv)
+{
+ int fd;
+ unsigned long len;
+ struct trx_header *ptr;
+ if (((fd = open(FILENAME, O_RDWR)) < 0)
+ || ((len = lseek(fd, 0, SEEK_END)) < 0)
+ || ((ptr = (struct trx_header *) mmap(0, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1))
+ || (ptr->magic != 0x30524448)) {
+ printf("Error reading trx info\n");
+ exit(-1);
+ }
+
+ if (argc > 1 && !strcmp(argv[1],"--move")) {
+ if (ptr->offsets[1] >= ptr->len) {
+ printf("Partition already moved outside trx\n");
+ } else if (ptr->offsets[1] & 0x0001ffff) {
+ printf("Partition does not start on a block boundary\n");
+ } else {
+ init_crc32();
+ bzero((void *)((int)ptr + ptr->len), (size_t)(len - ptr->len));
+ ptr->len = ptr->offsets[1];
+ ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
+ msync(ptr,len,MS_SYNC|MS_INVALIDATE);
+ printf("Partition moved; please reboot\n");
+ }
+ } else {
+ int x;
+ printf("=== trx ===\n");
+ printf("mapped: 0x%08x\n", (unsigned)ptr);
+ printf(" magic: 0x%08x\n", ptr->magic);
+ printf(" len: 0x%08x\n", ptr->len);
+ printf(" crc: 0x%08x\n", ptr->crc32);
+ for (x = 0; x < 3; x++)
+ printf(" offset[%d]: 0x%08x\n", x, ptr->offsets[x]);
+ }
+
+
+ munmap((void *) ptr, sizeof(struct trx_header));
+ return 0;
+}
diff --git a/package/openwrt/trx.c b/package/openwrt/trx.c
index 05a6604e1..d4ad60037 100644
--- a/package/openwrt/trx.c
+++ b/package/openwrt/trx.c
@@ -180,11 +180,12 @@ int main(int argc, char **argv)
case 'b':
n = atoi(optarg);
if (n < cur_len) {
- fprintf(stderr, "WARNING: current length exceeds -b %d offset",n);
+ fprintf(stderr, "WARNING: current length exceeds -b %d offset\n",n);
} else {
memset(buf + cur_len, 0, n - cur_len);
cur_len = n;
}
+ break;
default:
usage();
}
diff --git a/target/Makefile.in b/target/Makefile.in
index 40c9a0578..7a212e489 100644
--- a/target/Makefile.in
+++ b/target/Makefile.in
@@ -5,8 +5,13 @@ TARGET_SKEL_DIR=target/default/target_skeleton
include target/device/Makefile.in
+ifeq ($(strip $(BR2_TARGET_ROOTFS_JFFS2)),y)
+JFFS2FLAGS+=-a 131072
+endif
+
+
$(DIST)-linux.trx: openwrt-trx
- PATH=$(TARGET_PATH) trx -o $(DIST)-linux.trx $(LINUX_DIR)/$(LINUX_BINLOC) $(IMAGE).$(ROOTFS)
+ PATH=$(TARGET_PATH) trx -o $(DIST)-linux.trx $(LINUX_DIR)/$(LINUX_BINLOC) $(JFFS2FLAGS) $(IMAGE).$(ROOTFS)
$(DIST)-gs-code.bin: openwrt-addpattern $(DIST)-linux.trx
PATH=$(TARGET_PATH) addpattern -2 -i $(DIST)-linux.trx -o $(DIST)-gs-code.bin -g