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authorFelix Fietkau <nbd@openwrt.org>2007-03-02 01:23:36 +0000
committerFelix Fietkau <nbd@openwrt.org>2007-03-02 01:23:36 +0000
commit68ca8e7818356c0dbf2e0400b177139a656791c0 (patch)
treee8147a0b512f9bf0e42a6ac3f1a693b09c7c1971
parenta256c81dd99148e289dc7a73c01b9108701ad9d3 (diff)
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make squashfs overlay support more generic and integrate it for x86-2.6
SVN-Revision: 6450
-rw-r--r--include/image.mk18
-rw-r--r--package/base-files/Makefile7
-rwxr-xr-xpackage/base-files/files/bin/firstboot128
-rwxr-xr-xpackage/base-files/files/etc/preinit5
-rwxr-xr-xpackage/base-files/files/sbin/mount_root15
-rw-r--r--target/linux/generic-2.6/patches/065-block2mtd_init.patch112
-rw-r--r--target/linux/x86-2.6/Makefile2
-rw-r--r--target/linux/x86-2.6/config/default2
-rw-r--r--target/linux/x86-2.6/image/Makefile16
9 files changed, 296 insertions, 9 deletions
diff --git a/include/image.mk b/include/image.mk
index ec0512f904..9c170af11b 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -17,6 +17,19 @@ JFFS2OPTS := --pad --big-endian --squash
SQUASHFS_OPTS := -be
endif
+define add_jffs2_mark
+ echo -ne '\xde\xad\xc0\xde' >> $(1)
+endef
+
+# pad to 64k and add jffs2 end-of-filesystem mark
+# do this twice to make sure that this works with 128k blocksize as well
+define prepare_generic_squashfs
+ dd if=$(1) of=$(KDIR)/tmpfile.1 bs=64k conv=sync
+ $(call add_jffs2_mark,$(KDIR)/tmpfile.1)
+ dd of=$(1) if=$(KDIR)/tmpfile.1 bs=64k conv=sync
+ $(call add_jffs2_mark,$(1))
+endef
+
ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
ifeq ($(CONFIG_TARGET_ROOTFS_JFFS2),y)
define Image/mkfs/jffs2
@@ -25,9 +38,10 @@ ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
$(STAGING_DIR)/bin/mkfs.jffs2 $(JFFS2OPTS) -e 0x10000 -o $(KDIR)/root.jffs2-64k -d $(BUILD_DIR)/root
$(STAGING_DIR)/bin/mkfs.jffs2 $(JFFS2OPTS) -e 0x20000 -o $(KDIR)/root.jffs2-128k -d $(BUILD_DIR)/root
+
# add End-of-Filesystem markers
- echo -ne '\xde\xad\xc0\xde' >> $(KDIR)/root.jffs2-64k
- echo -ne '\xde\xad\xc0\xde' >> $(KDIR)/root.jffs2-128k
+ $(call add_jffs2_mark,$(KDIR)/root.jffs2-64k)
+ $(call add_jffs2_mark,$(KDIR)/root.jffs2-128k)
$(call Image/Build,jffs2-64k)
$(call Image/Build,jffs2-128k)
diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 33e6522e7e..5cbef91e3c 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -41,6 +41,11 @@ define Package/base-files$(TARGET)
This package contains a base filesystem and system scripts for OpenWrt.
URL:=http://openwrt.org/
VERSION:=$(PKG_RELEASE)-$(REV)
+ $(call Config,network.lan.proto,string,static,LAN Protocol)
+ $(call Config,network.lan.ipaddr,ip,192.168.1.1,LAN IP Address)
+ $(call Config,network.lan.netmask,netmask,255.255.0.0,LAN Network Mask)
+ $(call Config,network.lan.gateway,ip,,LAN Gateway)
+ $(call Config,network.lan.dns,ip,,LAN DNS server)
endef
define Package/base-files$(TARGET)/conffiles
@@ -153,3 +158,5 @@ $(eval $(call BuildPackage,base-files$(TARGET)))
$(eval $(call BuildPackage,libgcc))
$(eval $(call BuildPackage,libpthread))
$(eval $(call BuildPackage,uclibc))
+
+
diff --git a/package/base-files/files/bin/firstboot b/package/base-files/files/bin/firstboot
new file mode 100755
index 0000000000..fe63d1b279
--- /dev/null
+++ b/package/base-files/files/bin/firstboot
@@ -0,0 +1,128 @@
+#!/bin/sh
+# $Id: firstboot 5544 2006-11-17 03:07:10Z nbd $
+. /etc/functions.sh
+
+partname="rootfs_data"
+mtdpart="$(find_mtd_part $partname)"
+
+rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
+jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
+
+dupe() { # <new_root> <old_root>
+ cd $1
+ echo -n "creating directories... "
+ {
+ cd $2
+ find . -xdev -type d
+ echo "./dev ./jffs ./mnt ./proc ./tmp"
+ # xdev skips mounted directories
+ cd $1
+ } | xargs mkdir -p
+ echo "done"
+
+ echo -n "setting up symlinks... "
+ for file in $(cd $2; find . -xdev -type f;); do
+ case "$file" in
+ ./rom/note) ;; #nothing
+ ./etc/config*|\
+ ./usr/lib/ipkg/info/*) cp -af $2/$file $file;;
+ *) ln -sf /rom/${file#./*} $file;;
+ esac
+ done
+ for file in $(cd $2; find . -xdev -type l;); do
+ cp -af $2/${file#./*} $file
+ done
+ echo "done"
+}
+
+pivot() { # <new_root> <old_root>
+ mount -o move /proc $1/proc && \
+ pivot_root $1 $1$2 && {
+ mount -o move $2/dev /dev
+ mount -o move $2/tmp /tmp
+ mount -o move $2/jffs /jffs 2>&-
+ return 0
+ }
+}
+
+fopivot() { # <rw_root> <ro_root> <dupe?>
+ root=$1
+ {
+ mount -t mini_fo -o base=/,sto=$1 $1 /mnt 2>&- && root=/mnt
+ } || {
+ [ "$3" = "1" ] && {
+ mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
+ dupe $1 $rom
+ }
+ }
+ pivot $root $2
+}
+
+ramoverlay() {
+ mkdir -p /tmp/root
+ fopivot /tmp/root /rom 1
+}
+
+# invoked as an executable
+[ "${0##*/}" = "firstboot" ] && {
+
+ [ -z "$mtdpart" ] && {
+ echo "MTD partition not found."
+ exit 1
+ }
+
+ [ -z "$rom" ] && {
+ echo "You do not have a squashfs partition; aborting"
+ echo "(firstboot cannot be run on jffs2 based firmwares)"
+ exit 1
+ }
+
+ [ "$1" = "switch2jffs" ] && {
+ mtd erase "$partname"
+
+ # try to avoid fs changing while copying
+ mount -o remount,ro none / 2>&-
+
+ # copy ramoverlay to jffs2
+ mount "$mtdpart" /rom/jffs -t jffs2
+ echo -n "copying files ... "
+ cp -a /tmp/root/* /rom/jffs 2>&-
+ echo "done"
+
+ # switch back to squashfs (temporarily)
+ # and park the ramdisk ontop of /tmp/root
+ pivot /rom /mnt
+ mount -o move /mnt /tmp/root
+
+ # /jffs is the overlay
+ # /rom is the readonly
+ fopivot /jffs /rom
+
+ # try to get rid of /tmp/root
+ # this will almost always fail
+ umount /tmp/root 2>&-
+
+ # fs is clean
+ jffs2root --clean
+ exit 0
+ }
+
+ # script run manually
+ [ \! -z "$jffs" ] && {
+ echo "firstboot has already been run"
+ echo "jffs2 partition is mounted, only resetting files"
+ grep mini_fo /proc/filesystems >&-
+ [ $? != 0 ] && {
+ dupe $jffs $rom
+ exit 0
+ } || {
+ rm -rf $jffs/* 2>&-
+ mount -o remount $jffs / 2>&-
+ exit 0
+ }
+ }
+
+ mtd erase "$partname"
+ mount "$mtdpart" /jffs -t jffs2
+ fopivot /jffs /rom 1
+}
diff --git a/package/base-files/files/etc/preinit b/package/base-files/files/etc/preinit
new file mode 100755
index 0000000000..74d4e88892
--- /dev/null
+++ b/package/base-files/files/etc/preinit
@@ -0,0 +1,5 @@
+#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+mount_root
+exec /sbin/init
diff --git a/package/base-files/files/sbin/mount_root b/package/base-files/files/sbin/mount_root
index 81660f0067..607877c643 100755
--- a/package/base-files/files/sbin/mount_root
+++ b/package/base-files/files/sbin/mount_root
@@ -1,10 +1,21 @@
#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
+. /etc/functions.sh
mount none /proc -t proc
size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
mount none /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777
+
+grep rootfs /proc/mtd >/dev/null 2>/dev/null && {
+ mtd unlock rootfs
+ grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
+ . /bin/firstboot
+ echo "switching to jffs2"
+ mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2
+ fopivot /jffs /rom
+ }
+} || mount -o remount,rw /dev/root /
+
mkdir -p /dev/pts
mount none /dev/pts -t devpts
-mount -t sysfs none /sys 2>&-
-mount -o remount,rw /dev/root /
+grep sysfs /proc/filesystems >/dev/null && mount -t sysfs none /sys 2>&-
diff --git a/target/linux/generic-2.6/patches/065-block2mtd_init.patch b/target/linux/generic-2.6/patches/065-block2mtd_init.patch
new file mode 100644
index 0000000000..ef483bedd1
--- /dev/null
+++ b/target/linux/generic-2.6/patches/065-block2mtd_init.patch
@@ -0,0 +1,112 @@
+--- linux.old/drivers/mtd/devices/block2mtd.c 2007-03-02 01:00:13.866987272 +0100
++++ linux.dev/drivers/mtd/devices/block2mtd.c 2007-03-02 02:03:45.558522080 +0100
+@@ -16,6 +16,7 @@
+ #include <linux/list.h>
+ #include <linux/init.h>
+ #include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
+ #include <linux/buffer_head.h>
+ #include <linux/mutex.h>
+ #include <linux/mount.h>
+@@ -287,10 +288,11 @@
+
+
+ /* FIXME: ensure that mtd->size % erase_size == 0 */
+-static struct block2mtd_dev *add_device(char *devname, int erase_size)
++static struct block2mtd_dev *add_device(char *devname, int erase_size, char *mtdname)
+ {
+ struct block_device *bdev;
+ struct block2mtd_dev *dev;
++ struct mtd_partition *part;
+
+ if (!devname)
+ return NULL;
+@@ -330,14 +332,18 @@
+
+ /* Setup the MTD structure */
+ /* make the name contain the block device in */
+- dev->mtd.name = kmalloc(sizeof("block2mtd: ") + strlen(devname),
+- GFP_KERNEL);
++
++ if (!mtdname)
++ mtdname = devname;
++
++ dev->mtd.name = kmalloc(strlen(mtdname), GFP_KERNEL);
++
+ if (!dev->mtd.name)
+ goto devinit_err;
++
++ strcpy(dev->mtd.name, mtdname);
+
+- sprintf(dev->mtd.name, "block2mtd: %s", devname);
+-
+- dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
++ dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK & ~(erase_size - 1);
+ dev->mtd.erasesize = erase_size;
+ dev->mtd.writesize = 1;
+ dev->mtd.type = MTD_RAM;
+@@ -349,15 +355,18 @@
+ dev->mtd.read = block2mtd_read;
+ dev->mtd.priv = dev;
+ dev->mtd.owner = THIS_MODULE;
+-
+- if (add_mtd_device(&dev->mtd)) {
++
++ part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
++ part->name = dev->mtd.name;
++ part->offset = 0;
++ part->size = dev->mtd.size;
++ if (add_mtd_partitions(&dev->mtd, part, 1)) {
+ /* Device didnt get added, so free the entry */
+ goto devinit_err;
+ }
+ list_add(&dev->list, &blkmtd_device_list);
+ INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index,
+- dev->mtd.name + strlen("blkmtd: "),
+- dev->mtd.erasesize >> 10, dev->mtd.erasesize);
++ mtdname, dev->mtd.erasesize >> 10, dev->mtd.erasesize);
+ return dev;
+
+ devinit_err:
+@@ -430,9 +439,9 @@
+
+ static int block2mtd_setup2(const char *val)
+ {
+- char buf[80 + 12]; /* 80 for device, 12 for erase size */
++ char buf[80 + 12 + 80]; /* 80 for device, 12 for erase size, 80 for name */
+ char *str = buf;
+- char *token[2];
++ char *token[3];
+ char *name;
+ size_t erase_size = PAGE_SIZE;
+ int i, ret;
+@@ -443,7 +452,7 @@
+ strcpy(str, val);
+ kill_final_newline(str);
+
+- for (i = 0; i < 2; i++)
++ for (i = 0; i < 3; i++)
+ token[i] = strsep(&str, ",");
+
+ if (str)
+@@ -463,8 +472,10 @@
+ parse_err("illegal erase size");
+ }
+ }
++ if (token[2] && (strlen(token[2]) + 1 > 80))
++ parse_err("mtd device name too long");
+
+- add_device(name, erase_size);
++ add_device(name, erase_size, token[2]);
+
+ return 0;
+ }
+@@ -498,7 +509,7 @@
+
+
+ module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200);
+-MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\"");
++MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>[,<name>]]\"");
+
+ static int __init block2mtd_init(void)
+ {
diff --git a/target/linux/x86-2.6/Makefile b/target/linux/x86-2.6/Makefile
index 88b935f7be..2b8e497c90 100644
--- a/target/linux/x86-2.6/Makefile
+++ b/target/linux/x86-2.6/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
ARCH=i386
BOARD:=x86
BOARDNAME:=x86
-FEATURES:=jffs2 ext2
+FEATURES:=squashfs jffs2 ext2
include $(INCLUDE_DIR)/kernel-build.mk
DEFAULT_PACKAGES += kmod-natsemi
diff --git a/target/linux/x86-2.6/config/default b/target/linux/x86-2.6/config/default
index 768947ae7f..6e2fc2fa35 100644
--- a/target/linux/x86-2.6/config/default
+++ b/target/linux/x86-2.6/config/default
@@ -204,7 +204,7 @@ CONFIG_M486=y
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MICROCODE is not set
-CONFIG_MINI_FO=m
+CONFIG_MINI_FO=y
# CONFIG_MIXCOMWD is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
diff --git a/target/linux/x86-2.6/image/Makefile b/target/linux/x86-2.6/image/Makefile
index 955a42b23c..e59446472e 100644
--- a/target/linux/x86-2.6/image/Makefile
+++ b/target/linux/x86-2.6/image/Makefile
@@ -22,18 +22,22 @@ ifeq ($(CONFIG_X86_GRUB_IMAGES),y)
$(MAKE) -C grub clean
endef
+ define Image/cmdline/squashfs
+ block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=squashfs init=/etc/preinit
+ endef
+
define Image/cmdline/jffs2-64k
- block2mtd.block2mtd=$(ROOTPART),65536 root=/dev/mtdblock0 rootfstype=jffs2
+ block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=jffs2
endef
define Image/cmdline/jffs2-128k
- block2mtd.block2mtd=$(ROOTPART),131072 root=/dev/mtdblock0 rootfstype=jffs2
+ block2mtd.block2mtd=$(ROOTPART),131072,rootfs root=/dev/mtdblock0 rootfstype=jffs2
endef
define Image/cmdline/ext2
root=$(ROOTPART) rootfstype=ext2
endef
-
+
define Image/Build/grub
# left here because the image builder doesnt need these
$(INSTALL_DIR) $(KDIR)/root.grub/boot/grub
@@ -46,6 +50,7 @@ ifeq ($(CONFIG_X86_GRUB_IMAGES),y)
-e 's#@BAUDRATE@#$(CONFIG_X86_GRUB_BAUDRATE)#g' \
./grub/menu.lst > $(KDIR)/root.grub/boot/grub/menu.lst
PADDING="$(CONFIG_X86_GRUB_IMAGES_PAD)" PATH="$(STAGING_DIR)/usr/sbin:$(STAGING_DIR)/bin:$(PATH)" ./gen_image.sh $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).image $(CONFIG_X86_GRUB_KERNELPART) $(KDIR)/root.grub $(CONFIG_TARGET_ROOTFS_FSPART) $(KDIR)/root.$(1)
+ $(call Image/Build/grub/$(1))
endef
endif
@@ -65,8 +70,13 @@ define Image/Prepare
$(CP) $(LINUX_DIR)/arch/i386/boot/bzImage $(KDIR)/bzImage
$(call Image/Prepare/grub)
endef
+
+define Image/Build/squashfs
+ $(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
+endef
define Image/Build
+ $(call Image/Build/$(1))
$(call Image/Build/grub,$(1))
$(CP) $(KDIR)/root.$(1) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).fs
$(CP) $(KDIR)/bzImage $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinuz