2022-04-13 08:47:14 +00:00
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get_virt()
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{
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local vm s v UNAME
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UNAME=$(uname)
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case "$UNAME" in
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Linux)
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if exists systemd-detect-virt; then
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vm=$(systemd-detect-virt --vm)
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elif [ -f /sys/class/dmi/id/product_name ]; then
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read s </sys/class/dmi/id/product_name
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for v in KVM QEMU VMware VMW VirtualBox Xen Bochs Parallels BHYVE Hyper-V; do
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case "$s" in
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"$v"*)
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vm=$v
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break
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;;
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esac
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done
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fi
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;;
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esac
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2022-04-13 09:46:21 +00:00
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echo "$vm" | awk '{print tolower($0)}'
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2022-04-13 08:47:14 +00:00
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}
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check_virt()
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{
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echo \* checking virtualization
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local vm=$(get_virt)
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if [ -n "$vm" ]; then
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if [ "$vm" = "none" ]; then
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echo running on bare metal
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else
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echo "!!! WARNING. $vm virtualization detected !!!"
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echo '!!! WARNING. vmware and virtualbox are known to break most of the DPI bypass techniques when network is NATed using internal hypervisor NAT !!!'
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echo '!!! WARNING. if this is your case make sure you are bridged not NATed !!!'
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fi
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else
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echo cannot detect
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fi
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}
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