Access provider driver through machine for version check

Updates the VirtualBox version check for network range validation
    to access the driver via the machine instances provider within the
    passed env.

plugins/providers/virtualbox/action/network.rb

@@ -296,7 +296,7 @@ module VagrantPlugins
               error: e.message
           end
 
-          validate_hostonly_ip!(options[:ip])
+          validate_hostonly_ip!(options[:ip], @env[:machine].provider.driver)
 
           if ip.ipv4?
             # Verify that a host-only network subnet would not collide
@@ -515,8 +515,8 @@ module VagrantPlugins
         # ranges. It only validates if the network configuration file exists.
         # This was introduced in 6.1.28 so previous version won't have restrictions
         # placed on the valid ranges
-        def validate_hostonly_ip!(ip)
-          return if Gem::Version.new(Driver::Meta.version) < HOSTONLY_VALIDATE_VERSION ||
+        def validate_hostonly_ip!(ip, driver)
+          return if Gem::Version.new(driver.version) < HOSTONLY_VALIDATE_VERSION ||
             Vagrant::Util::Platform.windows?
 
           ip = IPAddr.new(ip.to_s) if !ip.is_a?(IPAddr)

test/unit/plugins/providers/virtualbox/action/network_test.rb

@@ -21,7 +21,8 @@ describe VagrantPlugins::ProviderVirtualBox::Action::Network do
 
   let(:env)    {{ machine: machine, ui: machine.ui }}
   let(:app)    { lambda { |*args| }}
-  let(:driver) { double("driver") }
+  let(:driver) { double("driver", version: vbox_version) }
+  let(:vbox_version) { "6.1.0" }
 
   let(:nics)         { {} }
 
@@ -30,8 +31,6 @@ describe VagrantPlugins::ProviderVirtualBox::Action::Network do
   before do
     allow(driver).to receive(:enable_adapters)
     allow(driver).to receive(:read_network_interfaces)   { nics }
-    allow(VagrantPlugins::ProviderVirtualBox::Driver::Meta).to receive(:version).
-      and_return("6.1.0")
   end
 
   describe "#hostonly_config" do
@@ -65,23 +64,21 @@ describe VagrantPlugins::ProviderVirtualBox::Action::Network do
   describe "#validate_hostonly_ip!" do
     let(:address) { "192.168.1.2" }
     let(:net_conf) { [IPAddr.new(address + "/24")]}
+    let(:vbox_version) { "6.1.28" }
 
     before do
-      allow(VagrantPlugins::ProviderVirtualBox::Driver::Meta).to receive(:version).
-        and_return("6.1.28")
-
       allow(subject).to receive(:load_net_conf).and_return(net_conf)
       expect(subject).to receive(:validate_hostonly_ip!).and_call_original
     end
 
     it "should load net configuration" do
       expect(subject).to receive(:load_net_conf).and_return(net_conf)
-      subject.validate_hostonly_ip!(address)
+      subject.validate_hostonly_ip!(address, driver)
     end
 
     context "when address is within ranges" do
       it "should not error" do
-        subject.validate_hostonly_ip!(address)
+        subject.validate_hostonly_ip!(address, driver)
       end
     end
 
@@ -90,24 +87,21 @@ describe VagrantPlugins::ProviderVirtualBox::Action::Network do
 
       it "should raise an error" do
         expect {
-          subject.validate_hostonly_ip!(address)
+          subject.validate_hostonly_ip!(address, driver)
         }.to raise_error(Vagrant::Errors::VirtualBoxInvalidHostSubnet)
       end
     end
 
     context "when virtualbox version does not restrict range" do
-      before do
-        allow(VagrantPlugins::ProviderVirtualBox::Driver::Meta).to receive(:version).
-          and_return("6.1.20")
-      end
+      let(:vbox_version) { "6.1.20" }
 
       it "should not error" do
-        subject.validate_hostonly_ip!(address)
+        subject.validate_hostonly_ip!(address, driver)
       end
 
       it "should not attempt to load network configuration" do
         expect(subject).not_to receive(:load_net_conf)
-        subject.validate_hostonly_ip!(address)
+        subject.validate_hostonly_ip!(address, driver)
       end
     end
 
@@ -117,12 +111,12 @@ describe VagrantPlugins::ProviderVirtualBox::Action::Network do
       end
 
       it "should not error" do
-        subject.validate_hostonly_ip!(address)
+        subject.validate_hostonly_ip!(address, driver)
       end
 
       it "should not attempt to load network configuration" do
         expect(subject).not_to receive(:load_net_conf)
-        subject.validate_hostonly_ip!(address)
+        subject.validate_hostonly_ip!(address, driver)
       end
     end
   end