feat: bridge network, audio
This commit is contained in:
parent
ceef751695
commit
934edba37a
@ -4,15 +4,12 @@ cd "$(dirname "$0")"
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if ! [ -f android.iso ]; then
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ask_yn "android.iso not found, download?" \
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&& bash ./download_isos.sh \
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&& bash ./download_isos.sh \
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|| exit 1
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fi
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qemu-img create -f qcow2 hda.qcow2 40G
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qemu-img create -f qcow2 hda.qcow2 10G
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CMD=(
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"${CMD[@]}"
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qemu "$@" \
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-drive file=android.iso,media=cdrom,readonly=on
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)
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"${CMD[@]}"
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#-device usb-host,vendorid=0xffff,productid=0xffff
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@ -4,16 +4,10 @@ cd "$(dirname "$0")"
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if ! [ -f hda.qcow2 ]; then
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ask_yn "hda.qcow2 not found, create?" \
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&& bash ./create.sh \
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&& bash ./create.sh \
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|| exit 1
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fi
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CMD=(
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"${CMD[@]}"
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-nic user,model=virtio-net-pci
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-vga std
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# USB passthrough, might need root privileges
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qemu "$@" \
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-vga std \
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#-device usb-host,vendorid=0xffff,productid=0xffff
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)
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"${CMD[@]}"
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10
arch/run.sh
10
arch/run.sh
@ -6,15 +6,9 @@ hda='https://geo.mirror.pkgbuild.com/images/latest/Arch-Linux-x86_64-basic.qcow2
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if ! [ -f hda.qcow2 ]; then
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ask_yn "hda does not exist. Download?" \
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&& curl -LC- -o hda.qcow2 "$hda" \
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&& curl -LC- -o hda.qcow2 "$hda" \
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|| exit 1
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fi
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CMD=(
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"${CMD[@]}"
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-nic user,model=virtio-net-pci
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# USB passthrough, might need root privileges
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qemu "$@" \
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#-device usb-host,vendorid=0xffff,productid=0xffff
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)
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"${CMD[@]}"
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@ -6,15 +6,9 @@ hda='https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-nocloud-amd
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if ! [ -f hda.qcow2 ]; then
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ask_yn "hda does not exist. Download?" \
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&& curl -LC- -o hda.qcow2 "$hda" \
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&& curl -LC- -o hda.qcow2 "$hda" \
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|| exit 1
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fi
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CMD=(
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"${CMD[@]}"
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-nic user,model=virtio-net-pci
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# USB passthrough, might need root privileges
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qemu "$@" \
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#-device usb-host,vendorid=0xffff,productid=0xffff
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)
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"${CMD[@]}"
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62
lib.sh
62
lib.sh
@ -1,34 +1,56 @@
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#!/bin/bash -e
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DIR="$(dirname "${BASH_SOURCE[0]}")"
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BRIDGE=virbr0
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function ask_yn() {
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local ans
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printf "$1 (Y/n) " >&2
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printf '%s (Y/n) ' "$1" >&2
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read -r ans
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case "${ans,,}" in
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y*|'') return 0 ;;
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*) return 1 ;;
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*) return 1 ;;
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esac
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}
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RAM="$(free -g | awk '/^Mem:/{print $2 - 2}')"
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function _getmaxram() {
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local ram; ram="$(free -g | awk '/^Mem:/{print $2 - 2}')"
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if [ "$RAM" -le 2 ]; then RAM=2
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elif [ "$RAM" -gt 32 ]; then RAM=32; fi
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if [ "$ram" -le 2 ]; then ram=2
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elif [ "$ram" -gt 32 ]; then ram=32; fi
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echo "${ram}G"
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}
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RAM="${RAM}G"
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function _getnet() {
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local net=user
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CMD=(
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qemu-system-x86_64
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-accel kvm
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-M q35
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-cpu host
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-m "2G,maxmem=$RAM"
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-vga virtio
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-drive if=virtio,file=hda.qcow2
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# usb
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-device qemu-xhci
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# shared memory
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-object memory-backend-ram,id=mem,size=2G,share=on
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-numa node,memdev=mem
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)
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if ! ip link show "$BRIDGE" | grep -q UP; then
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ask_yn 'create bridge?' && sudo "$DIR/startnat.sh" "$BRIDGE" > /dev/null
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fi
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if ip link show "$BRIDGE" | grep -q UP; then
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net="bridge,br=$BRIDGE"
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fi
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echo "$net"
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}
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function qemu() {
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local maxram; maxram="$(_getmaxram)"
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local net; net="$(_getnet)"
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(set -x
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qemu-system-x86_64 -accel kvm \
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-M q35 \
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-bios /usr/share/ovmf/x64/OVMF.fd \
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-cpu host \
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-m "2G,maxmem=$maxram" \
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-vga virtio \
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-drive if=virtio,file=hda.qcow2 \
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-audio pipewire,model=hda \
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-nic "model=virtio-net-pci,type=$net" \
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-device qemu-xhci \
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-object memory-backend-ram,id=mem,size=2G,share=on \
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-numa node,memdev=mem \
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"$@"
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)
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}
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56
startnat.sh
Executable file
56
startnat.sh
Executable file
@ -0,0 +1,56 @@
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#!/bin/bash -ex
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function _iptables() {
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local table="QEMU_$1"; shift
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iptables -C "$table" "$@" 2> /dev/null || iptables -A "$table" "$@"
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}
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function newtable() {
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local table="$1"; shift
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iptables -N "QEMU_$table" "$@" 2> /dev/null || true
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iptables -A "$table" -j "QEMU_$table" "$@"
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}
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if ! command -v dnsmasq iptables-nft; then
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echo 'missing 1+ dependencies: dnsmasq iptables-nft' >&2
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exit 1
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fi
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if [ "$EUID" != 0 ]; then
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echo 'this script must be run as root' >&2
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exit 1
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fi
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BRIDGE="${1-virbr0}"
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DEV="$(ip route | grep -Po '^default.*dev\s+\K\w+')"
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sysctl net.ipv4.conf.all.forwarding=1
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if ! ip link show "$BRIDGE" > /dev/null; then
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ip link add "$BRIDGE" type bridge
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fi
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ip link set dev "$BRIDGE" up
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ip address flush dev "$BRIDGE"
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ip address add 192.168.122.1/24 dev "$BRIDGE"
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newtable INPUT
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newtable FORWARD
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newtable OUTPUT
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newtable POSTROUTING -tnat
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_iptables INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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_iptables INPUT -i virbr0 -j ACCEPT
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_iptables FORWARD -i "$BRIDGE" -o "$DEV" -j ACCEPT
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_iptables FORWARD -i "$DEV" -o "$BRIDGE" -m state --state RELATED,ESTABLISHED -j ACCEPT
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_iptables POSTROUTING -o "$DEV" -j MASQUERADE -tnat
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pidof dnsmasq | grep -q "$(cat /var/run/dnsmasq-virbr0.pid)" \
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|| dnsmasq --bind-dynamic \
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-i "$BRIDGE" \
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-F 192.168.122.2,192.168.122.254,255.255.255.0 \
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-x /var/run/dnsmasq-virbr0.pid
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20
stopnat.sh
Executable file
20
stopnat.sh
Executable file
@ -0,0 +1,20 @@
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#!/bin/bash -x
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if [ "$EUID" != 0 ]; then
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echo "this script must be run as root" >&2
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exit
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fi
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BRIDGE="${1-virbr0}"
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sysctl net.ipv4.conf.all.forwarding=0
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ip link del dev "$BRIDGE"
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iptables -S | sed -n '/QEMU/s/-A/iptables -D/p' | bash
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iptables -S -tnat | sed -n '/QEMU/s/-A/iptables -tnat -D/p' | bash
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iptables -S | sed -n '/QEMU/s/-N/iptables -X/p' | bash
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iptables -S -tnat | sed -n '/QEMU/s/-N/iptables -tnat -X/p' | bash
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kill -TERM "$(cat /var/run/dnsmasq-virbr0.pid)"
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@ -4,17 +4,13 @@ cd "$(dirname "$0")"
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if ! [ -f win2k22.iso ] || ! [ -f virtio.iso ]; then
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ask_yn "win2k22.iso and/or virtio.iso not found, download?" \
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&& bash ./download_isos.sh \
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&& bash ./download_isos.sh \
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|| exit 1
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fi
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qemu-img create -f qcow2 hda.qcow2 40G
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CMD=(
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"${CMD[@]}"
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-drive file=win2k22.iso,media=cdrom,readonly=on
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-drive file=virtio.iso,media=cdrom,readonly=on
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-nic none # you don't want internet access for a windows installation
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)
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"${CMD[@]}"
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qemu "$@" \
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-drive file=win2k22.iso,media=cdrom,readonly=on \
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-drive file=virtio.iso,media=cdrom,readonly=on \
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#-device usb-host,vendorid=0xffff,productid=0xffff
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@ -3,6 +3,6 @@
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win2k22='https://go.microsoft.com/fwlink/p/?LinkID=2195280'
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virtio='https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/latest-virtio/virtio-win.iso'
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curl -LC- \
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curl -LC- \
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-o win2k22.iso "$win2k22" \
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-o virtio.iso "$virtio"
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@ -4,15 +4,10 @@ cd "$(dirname "$0")"
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if ! [ -f hda.qcow2 ]; then
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ask_yn "hda.qcow2 not found, create?" \
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&& bash ./create.sh \
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&& bash ./create.sh \
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|| exit 1
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fi
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CMD=(
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"${CMD[@]}"
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-nic user,model=virtio-net-pci
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# USB passthrough, might need root privileges
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qemu "$@" \
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-drive file=virtio.iso,media=cdrom,readonly=on \
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#-device usb-host,vendorid=0xffff,productid=0xffff
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)
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"${CMD[@]}"
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