From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sun, 19 May 2013 17:33:33 +0000 (+0200)
Subject: Add whitelist of serial USB devices.
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cd8ac7ca427d98d27464a8a3d92927284e7889d8;p=people%2Fstevee%2Fnetwork.git

Add whitelist of serial USB devices.

If you connect a USB serial adapter to the system, it
will automatically be checked if it is a modem.
We do that by sending AT commands to them and wait for a
response. Some devices that are not a modem may get confused
by that, so we whitelist them here.
---

diff --git a/udev/rules.d/50-serial-whitelist.rules b/udev/rules.d/50-serial-whitelist.rules
new file mode 100644
index 00000000..8ce10f7d
--- /dev/null
+++ b/udev/rules.d/50-serial-whitelist.rules
@@ -0,0 +1,21 @@
+
+# This file helps us to handle serial (USB) devices, that are not a
+# modem. We try to detect modems by sending AT commands to them and
+# wait for a response. Other devices may get confused by that, so
+# we maintain this whitelist that they won't be tested at all.
+
+# Skip all other actions except add and change.
+ACTION!="add|change", GOTO="skip_usb_serial_devices_whitelist"
+
+# Skip everything that is not ttyUSB*.
+KERNEL!="ttyUSB*", GOTO="skip_usb_serial_devices_whitelist"
+
+## Whitelist
+
+# Globalscale Dreamplug JTAG/UART adapter
+ATTRS{idVendor}=="9e88", ATTRS{idProduct}=="9e8f", ENV{NETWORK_USB_SERIAL_DEVICE_IGNORE}="1"
+
+# Prolific Technology, Inc. PL2303 Serial Port
+ATTRS{idVendor}=="067b", ATTRS{idProduct}=="2303", ENV{NETWORK_USB_SERIAL_DEVICE_IGNORE}="1"
+
+LABEL="skip_usb_serial_devices_whitelist"
diff --git a/udev/rules.d/60-net.rules b/udev/rules.d/60-net.rules
index e5d24b9b..78d6963b 100644
--- a/udev/rules.d/60-net.rules
+++ b/udev/rules.d/60-net.rules
@@ -8,4 +8,4 @@ ACTION=="add", SUBSYSTEM=="net", PROGRAM="/usr/lib/udev/network-hotplug-rename",
 SUBSYSTEM=="net", RUN+="/usr/lib/udev/network-hotplug"
 
 # Handle all serial devices (like modems and so on...).
-KERNEL=="ttyUSB*", RUN+="/usr/lib/udev/network-hotplug-serial"
+KERNEL=="ttyUSB*", ENV{NETWORK_USB_SERIAL_DEVICE_IGNORE}!="1", RUN+="/usr/lib/udev/network-hotplug-serial"