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authorFelix Fietkau <nbd@openwrt.org>2006-11-17 03:07:10 +0000
committerFelix Fietkau <nbd@openwrt.org>2006-11-17 03:07:10 +0000
commit6c4b1cc13597e84ac7921d5372855329d65dbd36 (patch)
tree2c09cda79a6c2cbf911ce1d1ac28b74f1c92f974 /package/base-files
parentb0a535a6de4e3122f45a2d04c8d4212357a70fd4 (diff)
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add failsafe mode and mini_fo mounting support for brcm-2.4 and brcm-2.6
SVN-Revision: 5544
Diffstat (limited to 'package/base-files')
-rwxr-xr-xpackage/base-files/brcm/bin/firstboot80
-rw-r--r--package/base-files/brcm/etc/diag.sh28
-rw-r--r--package/base-files/brcm/etc/init.d/done15
-rwxr-xr-xpackage/base-files/brcm/etc/preinit72
-rwxr-xr-xpackage/base-files/brcm/sbin/hotplug.failsafe4
-rwxr-xr-xpackage/base-files/brcm/sbin/mount_root10
6 files changed, 175 insertions, 34 deletions
diff --git a/package/base-files/brcm/bin/firstboot b/package/base-files/brcm/bin/firstboot
index b65d3ee..c3d9a64 100755
--- a/package/base-files/brcm/bin/firstboot
+++ b/package/base-files/brcm/bin/firstboot
@@ -1,5 +1,9 @@
#!/bin/sh
-# Copyright (C) 2006 OpenWrt.org
+# $Id$
+. /etc/functions.sh
+
+partname="OpenWrt"
+mtdpart="$(find_mtd_part $partname)"
rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
@@ -10,7 +14,7 @@ dupe() { # <new_root> <old_root>
{
cd $2
find . -xdev -type d
- echo "./dev ./jffs ./mnt ./proc ./tmp ./sys"
+ echo "./dev ./jffs ./mnt ./proc ./tmp"
# xdev skips mounted directories
cd $1
} | xargs mkdir -p
@@ -21,7 +25,6 @@ dupe() { # <new_root> <old_root>
case "$file" in
./rom/note) ;; #nothing
./etc/config*|\
- ./etc/resolv.conf|\
./usr/lib/ipkg/info/*) cp -af $2/$file $file;;
*) ln -sf /rom/${file#./*} $file;;
esac
@@ -37,24 +40,37 @@ pivot() { # <new_root> <old_root>
pivot_root $1 $1$2 && {
mount -o move $2/dev /dev
mount -o move $2/tmp /tmp
- mount -o move $2/sys /sys
+ mount -o move $2/jffs /jffs 2>&-
return 0
}
}
-mountdp() { # <device> <mount_point> <ignored> <fs>
- dev=$1; mnt=$2; shift 2; opt=$*
- mount $dev $mnt $opt
- dupe $mnt $rom
- pivot $mnt /rom
+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 $2
}
ramoverlay() {
mkdir -p /tmp/root
- mountdp /tmp/root /mnt -o bind
+ fopivot /tmp/root /rom 1
}
+# invoked as an executable
[ "${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)"
@@ -62,17 +78,31 @@ ramoverlay() {
}
[ "$1" = "switch2jffs" ] && {
- mtd erase OpenWrt
- mount -o remount,ro none / # try to avoid fs changing while copying
- mount -o bind / /mnt
- mount /dev/mtdblock/4 /rom/jffs -t jffs2
+ mtd erase "$partname"
+
+ # try to avoid fs changing while copying
+ mount -o remount,ro none / 2>&-
+
+ # copy ramoverlay to jffs2
+ mount "$mtdpart" /rom/jffs -t jffs2
echo -n "copying files ... "
- cp -a /mnt/* /rom/jffs
- umount /mnt
+ cp -a /tmp/root/* /rom/jffs 2>&-
echo "done"
+
+ # switch back to squashfs (temporarily)
+ # and park the ramdisk ontop of /tmp/root
pivot /rom /mnt
mount -o move /mnt /tmp/root
- pivot /jffs /rom
+
+ # /jffs is the overlay
+ # /rom is the readonly
+ fopivot /jffs /rom
+
+ # try to get rid of /tmp/root
+ # this will almost always fail
+ umount /tmp/root 2>&-
+
+ # fs is clean
jffs2root --clean
exit 0
}
@@ -81,10 +111,18 @@ ramoverlay() {
[ \! -z "$jffs" ] && {
echo "firstboot has already been run"
echo "jffs2 partition is mounted, only resetting files"
- dupe $jffs $rom
- exit 0
+ grep mini_fo /proc/filesystems >&-
+ [ $? != 0 ] && {
+ dupe $jffs $rom
+ exit 0
+ } || {
+ rm -rf $jffs/* 2>&-
+ mount -o remount $jffs / 2>&-
+ exit 0
+ }
}
- mtd erase OpenWrt
- mountdp /dev/mtdblock/4 /jffs -t jffs2
+ mtd erase "$partname"
+ mount "$mtdpart" /jffs -t jffs2
+ fopivot /jffs /rom 1
}
diff --git a/package/base-files/brcm/etc/diag.sh b/package/base-files/brcm/etc/diag.sh
new file mode 100644
index 0000000..3b08554
--- /dev/null
+++ b/package/base-files/brcm/etc/diag.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+
+set_led() {
+ local led="$1"
+ local state="$2"
+ [ -f "/proc/diag/led/$1" ] && echo "$state" > "/proc/diag/led/$1"
+}
+
+set_state() {
+ case "$1" in
+ preinit)
+ set_led dmz 1
+ set_led diag 1
+ set_led power 0
+ ;;
+ failsafe)
+ set_led diag f
+ set_led power f
+ set_led dmz f
+ ;;
+ done)
+ set_led dmz 0
+ set_led diag 0
+ set_led power 1
+ ;;
+ esac
+}
diff --git a/package/base-files/brcm/etc/init.d/done b/package/base-files/brcm/etc/init.d/done
new file mode 100644
index 0000000..0640b61
--- /dev/null
+++ b/package/base-files/brcm/etc/init.d/done
@@ -0,0 +1,15 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2006 OpenWrt.org
+
+START=95
+boot() {
+ [ -d /tmp/root ] && {
+ lock /tmp/.switch2jffs
+ firstboot switch2jffs
+ lock -u /tmp/.switch2jffs
+ }
+
+ # set leds to normal state
+ . /etc/diag.sh
+ set_state done
+}
diff --git a/package/base-files/brcm/etc/preinit b/package/base-files/brcm/etc/preinit
index fb13e10..9c7f944 100755
--- a/package/base-files/brcm/etc/preinit
+++ b/package/base-files/brcm/etc/preinit
@@ -1,13 +1,73 @@
#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
-export PATH=/bin:/sbin:/usr/bin:/usr/sbin
-mount none /proc -t proc
+. /etc/functions.sh
+. /etc/diag.sh
+
+failsafe() {
+ lock /tmp/.failsafe
-[ -f /etc/preinit.arch ] && . /etc/preinit.arch
-[ -z "$FAILSAFE" ] || {
- echo /bin/true > /proc/sys/kernel/hotplug
+ echo "0 1 2 3 4 5u*" > /proc/switch/eth0/vlan/0/ports
+
+ set_state failsafe
+ [ -x "/usr/sbin/nvram" ] && {
+ [ "$(nvram get boot_wait)" != "on" ] && {
+ nvram set boot_wait=on
+ nvram commit
+ }
+ }
+
+ netmsg 192.168.1.255 "Entering Failsafe!"
telnetd -l /bin/login <> /dev/null 2>&1
+
+ ash --login
+ lock -u /tmp/.failsafe
}
-mount_root ${FAILSAFE:+failsafe}
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+mount none /proc -t proc
+size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+mount none /tmp -t tmpfs -o size=$size
+
+insmod diag
+set_state preinit
+trap 'FAILSAFE=true' USR1
+echo '/sbin/hotplug.failsafe' > /proc/sys/kernel/hotplug
+
+ifname=eth0
+
+# hardware specific overrides
+case "$(cat /proc/diag/model)" in
+ "Linksys WAP54G V1") ifname=eth1;;
+ "ASUS WL-HDD") ifname=eth1;;
+ "ASUS WL-300g") ifname=eth1;;
+ "ASUS (unknown, BCM4702)") ifname=eth1;;
+esac
+
+insmod switch-core
+insmod switch-robo || insmod switch-adm || rmmod switch-core
+
+ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up
+
+[ -d /proc/switch/eth0 ] && {
+ echo 1 > /proc/switch/eth0/reset
+
+ # this would be easier if we blasted the message across all ports
+ # but we don't want packets leaking across interfaces
+ for port in $(seq 0 4); do {
+ echo "$port 5u*" > /proc/switch/eth0/vlan/0/ports
+ netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
+ }; done
+} || netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
+
+sleep 2
+
+eval ${FAILSAFE:+failsafe}
+
+lock -w /tmp/.failsafe
+echo /sbin/hotplug > /proc/sys/kernel/hotplug
+
+ifconfig $ifname 0.0.0.0 down
+
+mount_root
exec /sbin/init
diff --git a/package/base-files/brcm/sbin/hotplug.failsafe b/package/base-files/brcm/sbin/hotplug.failsafe
new file mode 100755
index 0000000..0544339
--- /dev/null
+++ b/package/base-files/brcm/sbin/hotplug.failsafe
@@ -0,0 +1,4 @@
+#!/bin/sh
+case "$1" in
+ button) kill -USR1 1;;
+esac
diff --git a/package/base-files/brcm/sbin/mount_root b/package/base-files/brcm/sbin/mount_root
index e73afdc..ffa6072 100755
--- a/package/base-files/brcm/sbin/mount_root
+++ b/package/base-files/brcm/sbin/mount_root
@@ -7,9 +7,6 @@ is_dirty() {
return $(hexdump -v /dev/mtdblock/1 -s $OFFSET -n 1 -e '"%d"')
}
-size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
-mount none /tmp -t tmpfs -o size=$size
-
if [ "$1" != "failsafe" ]; then
mtd unlock linux
mount | grep jffs2 >&-
@@ -21,15 +18,14 @@ if [ "$1" != "failsafe" ]; then
[ $? != 0 ] && {
echo "switching to jffs2"
mount /dev/mtdblock/4 /jffs -t jffs2
- pivot /jffs /rom
+ fopivot /jffs /rom
} || {
- echo "jffs2 unusable; using ramdisk"
+ echo "jffs2 not ready yet; using ramdisk"
ramoverlay
}
fi
fi
-mount none /tmp -t tmpfs -o remount,nosuid,nodev,mode=1777
mkdir -p /dev/pts
-mount none /dev/pts -t devpts
+mount none /dev/pts -t devpts 2>&-
grep sysfs /proc/filesystems >/dev/null && mount -t sysfs none /sys 2>&-