Add support for WSL2

[virt-what.git] / virt-what.in

diff --git a/virt-what.in b/virt-what.in
index 1a1101d..61481d3 100644 (file)
--- a/virt-what.in
+++ b/virt-what.in
@@ -1,6 +1,6 @@
 #!/bin/sh -
 # @configure_input@
-# Copyright (C) 2008-2022 Red Hat Inc.
+# Copyright (C) 2008-2024 Red Hat Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -109,17 +109,36 @@ cpuid=$(virt-what-cpuid-helper)
 dmi=$(LANG=C dmidecode 2>&1)
 
 # Architecture.
-# Note for the purpose of testing, we only call uname with -m option.
+# Note for the purpose of testing, we only call uname with -m option
+# (except WSL2 which is weird).
 
 arch=$(uname -m | sed -e 's/i.86/i386/' | sed -e 's/arm.*/arm/')
 
 # Check for Alibaba Cloud
 if echo "$dmi" | grep -q 'Manufacturer: Alibaba'; then
-    # Check for Alibaba Cloud ECS Bare Metal (EBM) Instance
-    if [ "x$root" = "x" ] && ( { echo -e "GET /latest/meta-datainstance/instance-type HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" >&3; grep -sq 'ebm' <&3 ; } 3<> /dev/tcp/100.100.100.200/80 ) 2>/dev/null ; then
-        echo "alibaba_cloud-ebm"
+    if $(timeout --version >/dev/null 2>&1); then
+        timeout_cmd_prefix="timeout 1s"
+        timeout_cmp="-eq"
+        timeout_return_value=124
     else
+        timeout_cmd_prefix=""
+        timeout_cmp="-ne"
+        timeout_return_value=0
+    fi
+
+    # Check for Alibaba Cloud ECS Bare Metal (EBM) Instance
+    metadata=$($timeout_cmd_prefix sh -c '( { echo -e "GET /latest/meta-datainstance/instance-type HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" >&3; grep -s 'ebm' <&3 ; } 3<> /dev/tcp/100.100.100.200/80 ) 2>/dev/null')
+    ret_value=$?
+    if [ $ret_value $timeout_cmp $timeout_return_value ]; then
+        # a timeout occurred when fetching metadata, assuming remote host unaccessible
+        # which means it might be a non-cloud environment, or test environment.
         echo "alibaba_cloud"
+    else
+        if [ -z "$metadata" ] ; then
+            echo "alibaba_cloud"
+        else
+            echo "alibaba_cloud-ebm"
+        fi
     fi
 fi
 
@@ -132,18 +151,30 @@ elif echo "$dmi" | grep -q 'Manufacturer: VMware'; then
     echo vmware
 fi
 
-# Check for Hyper-V.
+# Check for WSL2.
+kernel=$(uname -r)
+if echo "$kernel" | grep -q 'microsoft-standard-WSL2' ; then
+    echo wsl2
+# If not WSL2 based on the running kernel, check for native Hyper-V.
 # http://blogs.msdn.com/b/sqlosteam/archive/2010/10/30/is-this-real-the-metaphysics-of-hardware-virtualization.aspx
-if [ "$cpuid" = "Microsoft Hv" ]; then
+elif [ "$cpuid" = "Microsoft Hv" ]; then
+    echo hyperv
+# Hyper-V on ARM doesn't have CPUID.  Use the information in dmidecode
+# instead.  Note this is similar to VirtualPC below.
+elif echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation' &&
+     echo "$dmi" | grep -q 'Product Name: Virtual Machine' &&
+     echo "$dmi" | grep -q 'Version: Hyper-V'; then
     echo hyperv
 fi
 
 # Check for VirtualPC.
-# The negative check for cpuid is to distinguish this from Hyper-V
-# which also has the same manufacturer string in the SM-BIOS data.
+# The negative check for cpuid & Hyper-V is to distinguish this from
+# Hyper-V above which also has the same manufacturer string in the
+# SM-BIOS data.
 if [ "$cpuid" != "Microsoft Hv" ] &&
     echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation' &&
-    echo "$dmi" | grep -q 'Product Name: Virtual Machine'; then
+    echo "$dmi" | grep -q 'Product Name: Virtual Machine' &&
+    ! echo "$dmi" | grep -q 'Version: Hyper-V'; then
     echo virtualpc
 fi
 
@@ -198,6 +229,12 @@ if [ -e "${root}/proc/1/environ" ] &&
     echo oci
 fi
 
+# Check for CRI-O.
+if [ -e "${root}/proc/1/environ" ] &&
+    cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=crio'; then
+    echo crio
+fi
+
 # Check for Podman.
 if [ -e "${root}/proc/1/environ" ] &&
     cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=podman'; then
@@ -206,6 +243,12 @@ elif grep -qF /libpod- "${root}/proc/self/cgroup" 2>/dev/null; then
     echo podman
 fi
 
+# Check for container=systemd-nspawn
+if [ -e "${root}/proc/1/environ" ] &&
+    cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=systemd-nspawn'; then
+    echo systemd_nspawn
+fi
+
 # Check for Linux-VServer
 if test -e "${root}/proc/self/status" \
    && cat "${root}/proc/self/status" | grep -q "VxID: [0-9]*"; then
@@ -259,7 +302,8 @@ if echo "$dmi" | grep -q 'Vendor: Parallels'; then
 fi
 
 # Check for Nutanix AHV.
-if echo "$dmi" | grep -q 'Manufacturer: Nutanix'; then
+if echo "$dmi" | grep -q 'Manufacturer: Nutanix' &&
+   echo "$dmi" | grep -q 'Product Name: AHV'; then
     echo nutanix_ahv
 fi
 
@@ -354,6 +398,11 @@ if ! "$skip_qemu_kvm"; then
         # This is for AWS Graviton (Arm) systems which don't have CPUID.
         echo kvm
         skip_lkvm=true
+    elif echo "$dmi" | grep -q 'Manufacturer: Alibaba Cloud' &&
+        echo "$dmi" | grep -q 'System is a virtual machine'; then
+        # This is for Alibaba Arm systems which don't have CPUID.
+        echo kvm
+        skip_lkvm=true
     elif echo "$dmi" | grep -q 'Manufacturer: QEMU'; then
         # The test for KVM above failed, so now we know we're
         # not using KVM acceleration.