initial brax3 device makefiles
* boots and works fine Signed-off-by: erascape <erascape@proton.me>
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167
ramdisk-overlay/scripts/panic/telnet
Executable file
167
ramdisk-overlay/scripts/panic/telnet
Executable file
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#!/bin/sh
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PREREQ=""
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prereqs() {
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echo "$PREREQ"
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}
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case $1 in
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# get pre-requisites
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prereqs)
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prereqs
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exit 0
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;;
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esac
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USB_FUNCTIONS=rndis
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ANDROID_USB=/sys/class/android_usb/android0
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GADGET_DIR=/config/usb_gadget
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LOCAL_IP=192.168.2.15
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EXPLICIT_BUSYBOX="/bin/busybox"
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TELNET_DEBUG_PORT=23
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write() {
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echo -n "$2" >"$1"
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}
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# This sets up the USB with whatever USB_FUNCTIONS are set to via configfs
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usb_setup_configfs() {
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G_USB_ISERIAL=$GADGET_DIR/g1/strings/0x409/serialnumber
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mkdir $GADGET_DIR/g1
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write $GADGET_DIR/g1/idVendor "0x18D1"
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write $GADGET_DIR/g1/idProduct "0xD001"
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mkdir $GADGET_DIR/g1/strings/0x409
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write $GADGET_DIR/g1/strings/0x409/serialnumber "$1"
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write $GADGET_DIR/g1/strings/0x409/manufacturer "Halium initrd"
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write $GADGET_DIR/g1/strings/0x409/product "Failed to boot"
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if echo $USB_FUNCTIONS | grep -q "rndis"; then
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NETWORK_FUNCTION=""
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for function in ncm.usb0 rndis.usb0 rndis_bam.rndis; do
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if mkdir $GADGET_DIR/g1/functions/$function; then
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NETWORK_FUNCTION=$function
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break
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fi
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done
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if [ -z "$NETWORK_FUNCTION" ]; then
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echo "Error: No USB network gadget function available" >&2
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exit 1
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fi
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fi
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echo $USB_FUNCTIONS | grep -q "mass_storage" && mkdir $GADGET_DIR/g1/functions/storage.0
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mkdir $GADGET_DIR/g1/configs/c.1
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mkdir $GADGET_DIR/g1/configs/c.1/strings/0x409
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write $GADGET_DIR/g1/configs/c.1/strings/0x409/configuration "$USB_FUNCTIONS"
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if echo $USB_FUNCTIONS | grep -q "rndis"; then
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ln -s $GADGET_DIR/g1/functions/$NETWORK_FUNCTION $GADGET_DIR/g1/configs/c.1
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fi
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echo $USB_FUNCTIONS | grep -q "mass_storage" && ln -s $GADGET_DIR/g1/functions/storage.0 $GADGET_DIR/g1/configs/c.1
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echo "$(ls /sys/class/udc | grep -v dummy | head -1)" > $GADGET_DIR/g1/UDC
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}
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# This sets up the USB with whatever USB_FUNCTIONS are set to via android_usb
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usb_setup_android_usb() {
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G_USB_ISERIAL=$ANDROID_USB/iSerial
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write $ANDROID_USB/enable 0
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write $ANDROID_USB/functions ""
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write $ANDROID_USB/enable 1
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usleep 500000 # 0.5 delay to attempt to remove rndis function
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write $ANDROID_USB/enable 0
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write $ANDROID_USB/idVendor 18D1
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write $ANDROID_USB/idProduct D001
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write $ANDROID_USB/iManufacturer "Halium initrd"
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write $ANDROID_USB/iProduct "Failed to boot"
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write $ANDROID_USB/iSerial "$1"
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write $ANDROID_USB/functions $USB_FUNCTIONS
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write $ANDROID_USB/enable 1
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}
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# This determines which USB setup method is going to be used
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usb_setup() {
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mkdir /config || true
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mount -t configfs none /config || true
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if [ -d $ANDROID_USB ]; then
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usb_setup_android_usb $1
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elif [ -d $GADGET_DIR ]; then
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usb_setup_configfs $1
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fi
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}
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usb_info() {
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# make sure USB is settled
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echo "########################## usb_info: $1"
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sleep 1
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write $G_USB_ISERIAL "$1"
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}
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inject_loop() {
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INJ_DIR=/init-ctl
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INJ_STDIN=$INJ_DIR/stdin
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mkdir $INJ_DIR
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mkfifo $INJ_STDIN
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echo "This entire directory is for debugging init - it can safely be removed" >$INJ_DIR/README
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echo "########################## Beginning inject loop"
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while :; do
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while read IN; do
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if [ "$IN" = "continue" ]; then break 2; fi
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$IN
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done <$INJ_STDIN
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done
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rm -rf $INJ_DIR # Clean up if we exited nicely
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echo "########################## inject loop done"
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}
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usb_setup "halium-initrd telnet 192.168.2.15"
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USB_IFACE=notfound
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/sbin/ifconfig rndis0 $LOCAL_IP && USB_IFACE=rndis0
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if [ x$USB_IFACE = xnotfound ]; then
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/sbin/ifconfig usb0 $LOCAL_IP && USB_IFACE=usb0
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fi
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# Report for the logs
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/sbin/ifconfig -a
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# Unable to set up USB interface? Reboot.
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if [ x$USB_IFACE = xnotfound ]; then
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usb_info "Halium initrd Debug: ERROR: could not setup USB as usb0 or rndis0"
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dmesg
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sleep 60 # plenty long enough to check usb on host
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reboot -f
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fi
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# Create /etc/udhcpd.conf file.
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echo "start 192.168.2.20" >/etc/udhcpd.conf
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echo "end 192.168.2.90" >>/etc/udhcpd.conf
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echo "lease_file /var/udhcpd.leases" >>/etc/udhcpd.conf
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echo "interface $USB_IFACE" >>/etc/udhcpd.conf
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echo "option subnet 255.255.255.0" >>/etc/udhcpd.conf
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# Be explicit about busybox so this works in a rootfs too
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echo "########################## starting dhcpd"
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$EXPLICIT_BUSYBOX udhcpd
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# Non-blocking telnetd
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echo "########################## starting telnetd"
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# We run telnetd on different ports pre/post-switch_root This
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# avoids problems with an unterminated pre-switch_root telnetd
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# hogging the port
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$EXPLICIT_BUSYBOX telnetd -b ${LOCAL_IP}:${TELNET_DEBUG_PORT} -l /bin/sh
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# For some reason this does not work in rootfs
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usb_info "Halium initrd Debug telnet on port $TELNET_DEBUG_PORT on $USB_IFACE $LOCAL_IP - also running udhcpd"
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ps -wlT
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ps -ef
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netstat -lnp
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cat /proc/mounts
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sync
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# Run command injection loop = can be exited via 'continue'
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inject_loop
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