From 33e3afbf1374ca484de528f5b965817c16ce647d Mon Sep 17 00:00:00 2001
From: Takumi Sueda <puhitaku@gmail.com>
Date: Mon, 27 Mar 2023 19:37:52 +0900
Subject: [PATCH] Enable RNDIS gadget automatically

---
 os-brainux/override.sh                        |  3 +++
 .../lib/systemd/system/rndis_gadget.service   |  9 +++++++
 .../override/usr/bin/enable_rndis_gadget      | 25 +++++++++++++++++++
 os-brainux/setup_brainux.sh                   |  3 +++
 4 files changed, 40 insertions(+)
 create mode 100644 os-brainux/override/lib/systemd/system/rndis_gadget.service
 create mode 100755 os-brainux/override/usr/bin/enable_rndis_gadget

diff --git a/os-brainux/override.sh b/os-brainux/override.sh
index f4eba6e..06f29aa 100755
--- a/os-brainux/override.sh
+++ b/os-brainux/override.sh
@@ -21,3 +21,6 @@ install -g 1000 -o 1000 -m 0644 $SRC/home/user/lxterminal/lxterminal.conf $DST/h
 install -g root -o root -m 0644 -D $SRC/etc/jwm/system.jwmrc $DST/etc/jwm/system.jwmrc
 
 install -g root -o root -m 0644 $SRC/lib/systemd/system/boot.mount $DST/lib/systemd/system/boot.mount
+
+install -g root -o root -m 0644 $SRC/lib/systemd/system/rndis_gadget.service $DST/lib/systemd/system/rndis_gadget.service
+install -g root -o root -m 0755 $SRC/usr/bin/enable_rndis_gadget $DST/usr/bin/enable_rndis_gadget
diff --git a/os-brainux/override/lib/systemd/system/rndis_gadget.service b/os-brainux/override/lib/systemd/system/rndis_gadget.service
new file mode 100644
index 0000000..145c5cb
--- /dev/null
+++ b/os-brainux/override/lib/systemd/system/rndis_gadget.service
@@ -0,0 +1,9 @@
+[Unit]
+Description=Enable RNDIS USB Gadget
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/enable_rndis_gadget
+
+[Install]
+WantedBy=multi-user.target
diff --git a/os-brainux/override/usr/bin/enable_rndis_gadget b/os-brainux/override/usr/bin/enable_rndis_gadget
new file mode 100755
index 0000000..a0d738c
--- /dev/null
+++ b/os-brainux/override/usr/bin/enable_rndis_gadget
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+g=/sys/kernel/config/usb_gadget/eth
+
+mkdir ${g}
+
+echo "0x3066" > ${g}/bcdDevice
+echo "1" > ${g}/os_desc/use
+echo "0xcd" > ${g}/os_desc/b_vendor_code
+echo "MSFT100" > ${g}/os_desc/qw_sign
+
+mkdir ${g}/functions/rndis.rn0
+echo "RNDIS" > ${g}/functions/rndis.rn0/os_desc/interface.rndis/compatible_id
+echo "5162001" > ${g}/functions/rndis.rn0/os_desc/interface.rndis/sub_compatible_id
+echo "8a:15:8b:44:3a:02" > ${g}/functions/rndis.rn0/dev_addr
+echo "8a:15:8b:44:3a:01" > ${g}/functions/rndis.rn0/host_addr
+
+mkdir ${g}/configs/c.1
+ln -s ${g}/functions/rndis.rn0 ${g}/configs/c.1/
+
+echo "ci_hdrc.0" > ${g}/UDC
+
+sleep 1
+ifconfig usb0 up
+dhclient
diff --git a/os-brainux/setup_brainux.sh b/os-brainux/setup_brainux.sh
index 15e607b..90d7590 100755
--- a/os-brainux/setup_brainux.sh
+++ b/os-brainux/setup_brainux.sh
@@ -139,6 +139,9 @@ EOF
 # Enable /boot mount
 systemctl enable boot.mount
 
+# Enable RNDIS gadget
+systemctl enable rndis_gadget
+
 # Get wild
 cat <<EOF > /etc/apt/sources.list
 deb http://deb.debian.org/debian bullseye main contrib non-free