mirror of
https://github.com/sipeed/NanoKVM.git
synced 2026-09-11 00:22:56 -05:00
dc050d1f19
The USB network gadget (rndis.usb0 / ncm.usb0) is created without dev_addr or host_addr, so the kernel picks a random MAC for both the device side and the host side on every bind. S10uuid later pins the device-side usb0 via 'ip link set', but the host_addr -- the MAC the attached PC's RNDIS/NCM adapter uses -- stays random and changes on every re-enumeration/reboot. The host then registers a brand-new network adapter each time, piling up stale adapters/MACs (e.g. ~10 after a few reboots) and breaking anything that keys off the MAC. Derive both MACs from the chip UID (same scheme S10uuid already uses for eth0 and usb0), before binding the gadget: dev_addr = 48:da:35:6e:<uid> host_addr = 48:da:35:6d:<uid> Verified on a NanoKVM Cube: host_addr went from random a6:3f:5d:8a:7d:52 to a stable 48:da:35:6d:26:62, identical across two reboots. Fixes #740 Co-authored-by: BeaconCat <BeaconCat@users.noreply.github.com>
195 lines
6.7 KiB
Bash
Executable File
195 lines
6.7 KiB
Bash
Executable File
#!/bin/sh
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# kvmhwd Rev2.2
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start_usb_dev(){
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. /etc/profile
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echo "usb mode: device"
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cd /sys/kernel/config/usb_gadget
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mkdir g0
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cd g0
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# echo 0x3346 > idVendor
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# echo 0x1009 > idProduct
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if [ -e /boot/usb.vid ]
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then
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cat /boot/usb.vid > idVendor
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else
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echo 0x3346 > idVendor
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fi
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if [ -e /boot/usb.pid ]
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then
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cat /boot/usb.pid > idProduct
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else
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echo 0x1009 > idProduct
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fi
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echo 0xEF > bDeviceClass
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echo 0x02 > bDeviceSubClass
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echo 0x01 > bDeviceProtocol
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mkdir strings/0x409
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echo '0123456789ABCDEF' > strings/0x409/serialnumber
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echo 'sipeed' > strings/0x409/manufacturer
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echo 'NanoKVM' > strings/0x409/product
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mkdir configs/c.1
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echo 0xE0 > configs/c.1/bmAttributes
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echo 120 > configs/c.1/MaxPower
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mkdir configs/c.1/strings/0x409
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echo "NanoKVM" > configs/c.1/strings/0x409/configuration
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# Deterministic gadget MACs from the chip UID so the host-side RNDIS/NCM
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# interface keeps a STABLE MAC across re-enumeration/reboot. Without this
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# the kernel assigns a random dev_addr/host_addr on every bind, so the
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# attached PC sees a brand-new network adapter (and MAC) each time.
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usb_uid=$(sha512sum /sys/class/cvi-base/base_uid | head -c 4)
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if [ -n "$usb_uid" ]
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then
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usb_dev_mac="48:da:35:6e:${usb_uid%??}:${usb_uid#??}"
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usb_host_mac="48:da:35:6d:${usb_uid%??}:${usb_uid#??}"
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fi
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if [ -e /boot/usb.ncm ]
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then
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mkdir functions/ncm.usb0
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[ -n "$usb_dev_mac" ] && echo "$usb_dev_mac" > functions/ncm.usb0/dev_addr
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[ -n "$usb_host_mac" ] && echo "$usb_host_mac" > functions/ncm.usb0/host_addr
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echo WINNCM > functions/ncm.usb0/os_desc/interface.ncm/compatible_id
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ln -s functions/ncm.usb0 configs/c.1/
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else
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if [ -e /boot/usb.rndis0 ]
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then
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mkdir functions/rndis.usb0
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[ -n "$usb_dev_mac" ] && echo "$usb_dev_mac" > functions/rndis.usb0/dev_addr
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[ -n "$usb_host_mac" ] && echo "$usb_host_mac" > functions/rndis.usb0/host_addr
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echo e0 > functions/rndis.usb0/class
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echo 01 > functions/rndis.usb0/subclass
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echo 03 > functions/rndis.usb0/protocol
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echo RNDIS > functions/rndis.usb0/os_desc/interface.rndis/compatible_id
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echo 5162001 > functions/rndis.usb0/os_desc/interface.rndis/sub_compatible_id
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ln -s functions/rndis.usb0 configs/c.1/
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fi
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fi
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if [ -e /boot/usb.ncm ] || [ -e /boot/usb.rndis0 ]
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then
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# Microsoft OS 2.0 Descriptor
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echo 1 > os_desc/use
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echo 0xCD > os_desc/b_vendor_code
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echo MSFT100 > os_desc/qw_sign
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ln -s configs/c.1 os_desc
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fi
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if [ ! -e /boot/disable_hid ]
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then
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# keyboard
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mkdir functions/hid.GS0
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if [ -e /boot/BIOS ]
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then
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echo 1 > functions/hid.GS0/subclass
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fi
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if [ ! -e /boot/usb.notwakeup ]
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then
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echo 1 > functions/hid.GS0/wakeup_on_write
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fi
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echo 1 > functions/hid.GS0/protocol
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echo 8 > functions/hid.GS0/report_length
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echo -ne \\x05\\x01\\x09\\x06\\xa1\\x01\\x05\\x07\\x19\\xe0\\x29\\xe7\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08\\x81\\x02\\x95\\x01\\x75\\x08\\x81\\x03\\x95\\x05\\x75\\x01\\x05\\x08\\x19\\x01\\x29\\x05\\x91\\x02\\x95\\x01\\x75\\x03\\x91\\x03\\x95\\x06\\x75\\x08\\x15\\x00\\x25\\xE7\\x05\\x07\\x19\\x00\\x29\\xE7\\x81\\x00\\xc0 > functions/hid.GS0/report_desc
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ln -s functions/hid.GS0 configs/c.1
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# mouse
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mkdir functions/hid.GS1
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if [ -e /boot/BIOS ]
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then
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echo 1 > functions/hid.GS1/subclass
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fi
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if [ ! -e /boot/usb.notwakeup ]
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then
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echo 1 > functions/hid.GS1/wakeup_on_write
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fi
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echo 2 > functions/hid.GS1/protocol
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echo 4 > functions/hid.GS1/report_length
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echo -ne \\x5\\x1\\x9\\x2\\xa1\\x1\\x9\\x1\\xa1\\x0\\x5\\x9\\x19\\x1\\x29\\x3\\x15\\x0\\x25\\x1\\x95\\x3\\x75\\x1\\x81\\x2\\x95\\x1\\x75\\x5\\x81\\x3\\x5\\x1\\x9\\x30\\x9\\x31\\x9\\x38\\x15\\x81\\x25\\x7f\\x75\\x8\\x95\\x3\\x81\\x6\\xc0\\xc0 > functions/hid.GS1/report_desc
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ln -s functions/hid.GS1 configs/c.1
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# touchpad
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mkdir functions/hid.GS2
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if [ -e /boot/BIOS ]
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then
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echo 1 > functions/hid.GS2/subclass
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fi
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if [ ! -e /boot/usb.notwakeup ]
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then
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echo 1 > functions/hid.GS2/wakeup_on_write
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fi
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echo 2 > functions/hid.GS2/protocol
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echo 6 > functions/hid.GS2/report_length
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echo -ne \\x05\\x01\\x09\\x02\\xa1\\x01\\x09\\x01\\xa1\\x00\\x05\\x09\\x19\\x01\\x29\\x05\\x15\\x00\\x25\\x01\\x95\\x05\\x75\\x01\\x81\\x02\\x95\\x01\\x75\\x03\\x81\\x01\\x05\\x01\\x09\\x30\\x09\\x31\\x15\\x00\\x26\\xff\\x7f\\x35\\x00\\x46\\xff\\x7f\\x75\\x10\\x95\\x02\\x81\\x02\\x05\\x01\\x09\\x38\\x15\\x81\\x25\\x7f\\x35\\x00\\x45\\x00\\x75\\x08\\x95\\x01\\x81\\x06\\xc0\\xc0 > functions/hid.GS2/report_desc
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ln -s functions/hid.GS2 configs/c.1
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fi
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if [ -e /boot/usb.disk0 ]
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then
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mkdir functions/mass_storage.disk0
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ln -s functions/mass_storage.disk0 configs/c.1/
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echo 1 > functions/mass_storage.disk0/lun.0/removable
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if [ -e /boot/usb.disk0.ro ]
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then
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echo 1 > functions/mass_storage.disk0/lun.0/ro
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echo 0 > functions/mass_storage.disk0/lun.0/cdrom
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fi
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echo "NanoKVM USB Mass Storage0520" > functions/mass_storage.disk0/lun.0/inquiry_string
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disk=$(cat /boot/usb.disk0)
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if [ -z "${disk}" ]
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then
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# if [ ! -e /mnt/usbdisk.img ]
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# then
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# fallocate -l 8G /mnt/usbdisk.img
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# mkfs.vfat /mnt/usbdisk.img
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# fi
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echo /dev/mmcblk0p3 > functions/mass_storage.disk0/lun.0/file
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else
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cat /boot/usb.disk0 > functions/mass_storage.disk0/lun.0/file
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fi
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fi
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ls /sys/class/udc/ | cat > UDC
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echo device > /proc/cviusb/otg_role
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}
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start_usb_host(){
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echo '' > /sys/kernel/config/usb_gadget/g0/UDC
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echo host > /proc/cviusb/otg_role
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}
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restart_usb_dev(){
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echo > /sys/kernel/config/usb_gadget/g0/UDC
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sleep 1
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ls /sys/class/udc/ | cat > /sys/kernel/config/usb_gadget/g0/UDC
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echo "USB Restart OK!"
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}
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case "$1" in
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start)
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start_usb_dev
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;;
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restart)
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restart_usb_dev
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;;
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stop)
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start_usb_host
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;;
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stop_start)
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start_usb_host
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start_usb_dev
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;;
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restart_phy)
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echo "4340000.usb" > /sys/bus/platform/drivers/dwc2/unbind
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sleep 1
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echo "4340000.usb" > /sys/bus/platform/drivers/dwc2/bind
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start_usb_host
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start_usb_dev
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;;
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esac
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