Dylan Van Assche
ccd3a554a6
Also start set -e after config parameters are read. Fallbacks would trigger exit otherwise. Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/8553>
71 lines
1.8 KiB
Bash
71 lines
1.8 KiB
Bash
#!/bin/sh
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# Enable/disable developer USB mode by delegating network operations to NetworkManager
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# Dynamically generate NetworkManager connection because it is only available in the right USB mode
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#
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# Copyright (c) Dylan Van Assche (2025-2026)
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CONFIGFS="/sys/kernel/config/usb_gadget"
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IFACE=$(cat "$CONFIGFS"/usb-signaller-developer/functions/ncm.*/ifname 2>/dev/null)
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IFACE=${IFACE:-"usb0"}
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IP_ADDRESS_SERVER=172.16.42.1
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IP_ADDRESS_CLIENT=172.16.42.2
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CONNECTION_NAME=$(cat "$CONFIGFS"/usb-signaller-developer/configs/*/strings/0x409/configuration 2>/dev/null)
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CONNECTION_NAME=${CONNECTION_NAME:-"Developer Mode"}
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set -e
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_start_unudhcpd() {
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if [ -d "/run/systemd" ]; then
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systemctl start unudhcpd@"$1"
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elif [ -d "/etc/rc.conf" ]; then
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rc-service unudhcpd."$1" start
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else
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echo "Cannot start unudhpcd!"
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fi
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}
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_stop_unudhcpd() {
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if [ -d "/run/systemd" ]; then
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systemctl stop unudhcpd@"$1"
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elif [ -d "/etc/rc.conf" ]; then
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rc-service unudhcpd."$1" stop
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else
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echo "Cannot stop unudhpcd!"
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fi
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}
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up() {
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# Bring interface and NetworkManager connection up
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nmcli connection add con-name "$CONNECTION_NAME" type ethernet \
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ifname "$IFACE" ipv4.method manual ipv4.addresses "$IP_ADDRESS_SERVER"/16
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nmcli connection up "$CONNECTION_NAME"
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# Start DHCP server
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_start_unudhcpd "$IFACE"
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}
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down() {
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# Stop DHCP server
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_stop_unudhcpd "$IFACE"
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# Bring NetworkManager connection down
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nmcli connection down "$CONNECTION_NAME"
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nmcli connection delete "$CONNECTION_NAME"
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# NetworkManager brings the interface up automatically,
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# but doesn't remove it when bringing down.
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ifconfig "$IFACE" down
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}
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case $1 in
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up)
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up
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;;
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down)
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down
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;;
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*)
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echo "need an argument (up|down)"
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exit 0
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;;
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esac
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