Publish Vulpes Preview 15 sources for desktop, Android and Tundra

Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.

tundra/boot/rescue-init.sh

@@ -0,0 +1,55 @@
+#!/bin/busybox sh
+# SPDX-License-Identifier: MPL-2.0
+# Temporary RAM-only boot. Installed data is never mounted writable.
+export PATH=/bin:/sbin
+/bin/busybox --install -s /bin
+mount -t proc proc /proc
+ln -s /proc/mounts /etc/mtab
+mount -t sysfs sysfs /sys
+mount -t devtmpfs devtmpfs /dev
+mkdir -p /dev/pts /run /sys/kernel/config
+mount -t devpts devpts /dev/pts
+mount -t tmpfs tmpfs /run
+exec >>/run/boot.log 2>&1
+# This runs before USB/storage setup, so a later failure still returns to Droidian.
+(sleep 480; echo 'Tundra trial deadline reached'; reboot -f) &
+echo TUNDRA_RESCUE_STARTED
+case "$(cat /proc/cmdline)" in *tundra.rescue=1*) ;; *) reboot -f;; esac
+mdev -s
+chmod 666 /dev/null /dev/zero /dev/random /dev/urandom /dev/ptmx
+mount -t configfs configfs /sys/kernel/config
+G=/sys/kernel/config/usb_gadget/tundra
+mkdir -p "$G"
+echo 0x1d6b > "$G/idVendor"
+echo 0x0104 > "$G/idProduct"
+mkdir -p "$G/strings/0x409" "$G/configs/c.1/strings/0x409" "$G/functions/rndis.usb0"
+echo TUNDRA-TRIAL > "$G/strings/0x409/serialnumber"
+echo 'Tundra development' > "$G/strings/0x409/manufacturer"
+echo 'Temporary runtime trial' > "$G/strings/0x409/product"
+echo 250 > "$G/configs/c.1/MaxPower"
+ln -s "$G/functions/rndis.usb0" "$G/configs/c.1/rndis"
+for i in $(seq 1 100); do
+  UDC=$(ls /sys/class/udc | head -n1)
+  [ -n "$UDC" ] && break
+  sleep 0.1
+done
+echo "$UDC" > "$G/UDC"
+ip link set lo up
+for iface in rndis0 usb0; do
+  if [ -d "/sys/class/net/$iface" ]; then
+    ip addr add 10.15.19.82/24 dev "$iface"
+    ip link set "$iface" up
+    break
+  fi
+done
+/sbin/dropbear -E -s -j -k -p 10.15.19.82:2222 -r /etc/tundra-hostkey -P /run/dropbear.pid
+echo TUNDRA_USB_SSH_READY
+# No LVM activation, fsck, journal replay, resizing, or writes to a block device.
+if [ -b /dev/mmcblk0p72 ] && [ "$(dd if=/dev/mmcblk0p72 bs=1048576 count=1 2>/dev/null | sha256sum | cut -d' ' -f1)" = "$EXPECTED_STORAGE_HASH" ]; then
+  mkdir -p /dev/mapper /installed
+  /sbin/dmsetup create tundra-installed-ro --readonly --table '0 104448000 linear /dev/mmcblk0p72 329728'
+  /sbin/dmsetup mknodes
+  mount -t ext4 -o ro,noload /dev/mapper/tundra-installed-ro /installed
+fi
+echo TUNDRA_RESCUE_READY
+while :; do sleep 5; done