From e3bec10b73a7632851f824bf21cf2f4d7f20be0a Mon Sep 17 00:00:00 2001
From: "sijie.sun" <sijie.sun@smartx.com>
Date: Wed, 7 Aug 2024 22:46:46 +0800
Subject: [PATCH] fix win7 build and bump version

---
 Cargo.toml                     |  2 +-
 src/platform/windows/device.rs | 32 +++++++++++++++++++-------------
 src/platform/windows/mod.rs    |  6 ++++++
 3 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 2fb12e59..3237c593 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tun-easytier"
-version = "1.0.0"
+version = "1.1.1"
 edition = "2021"
 authors = ["meh. <meh@schizofreni.co>", "@ssrlive", "sijie.sun <sunsijie@buaa.edu.cn>"]
 license = "WTFPL"
diff --git a/src/platform/windows/device.rs b/src/platform/windows/device.rs
index 33dd4823..e2dd36d2 100644
--- a/src/platform/windows/device.rs
+++ b/src/platform/windows/device.rs
@@ -56,18 +56,22 @@ impl Device {
             Err(_) => wintun::Adapter::create(&wintun, tun_name, tun_name, guid)?,
         };
 
-        let address = config
-            .address
-            .unwrap_or(IpAddr::V4(Ipv4Addr::new(10, 1, 0, 2)));
-        let mask = config
-            .netmask
-            .unwrap_or(IpAddr::V4(Ipv4Addr::new(255, 255, 255, 0)));
-        let gateway = config.destination.map(IpAddr::from);
-        adapter.set_network_addresses_tuple(address, mask, gateway)?;
-        #[cfg(feature = "wintun-dns")]
-        if let Some(dns_servers) = &config.platform_config.dns_servers {
-            adapter.set_dns_servers(dns_servers)?;
+        // on win7 guid will not be correctly assigned, user should skip the config step.
+        if !config.platform_config.skip_config && adapter.get_name().is_ok() {
+            let address = config
+                .address
+                .unwrap_or(IpAddr::V4(Ipv4Addr::new(10, 1, 0, 2)));
+            let mask = config
+                .netmask
+                .unwrap_or(IpAddr::V4(Ipv4Addr::new(255, 255, 255, 0)));
+            let gateway = config.destination.map(IpAddr::from);
+            adapter.set_network_addresses_tuple(address, mask, gateway)?;
+            #[cfg(feature = "wintun-dns")]
+            if let Some(dns_servers) = &config.platform_config.dns_servers {
+                adapter.set_dns_servers(dns_servers)?;
+            }
         }
+
         let mtu = config.mtu.unwrap_or(crate::DEFAULT_MTU);
 
         let session = adapter.start_session(
@@ -85,8 +89,10 @@ impl Device {
             name: tun_name.to_string(),
         };
 
-        // This is not needed since we use netsh to set the address.
-        device.configure(config)?;
+        if !config.platform_config.skip_config && adapter.get_name().is_ok() {
+            // This is not needed since we use netsh to set the address.
+            device.configure(config)?;
+        }
 
         Ok(device)
     }
diff --git a/src/platform/windows/mod.rs b/src/platform/windows/mod.rs
index 0c3261ba..7732b246 100644
--- a/src/platform/windows/mod.rs
+++ b/src/platform/windows/mod.rs
@@ -33,6 +33,7 @@ pub struct PlatformConfig {
     #[cfg(feature = "wintun-dns")]
     pub(crate) dns_servers: Option<Vec<IpAddr>>,
     pub(crate) ring_cap: Option<u32>,
+    pub(crate) skip_config: bool,
 }
 
 impl Default for PlatformConfig {
@@ -43,6 +44,7 @@ impl Default for PlatformConfig {
             #[cfg(feature = "wintun-dns")]
             dns_servers: None,
             ring_cap: None,
+            skip_config: false,
         }
     }
 }
@@ -78,6 +80,10 @@ impl PlatformConfig {
     pub fn ring_cap(&mut self, ring_cap: Option<u32>) {
         self.ring_cap = ring_cap;
     }
+
+    pub fn skip_config(&mut self, skip_config: bool) {
+        self.skip_config = skip_config;
+    }
 }
 
 /// Create a TUN device with the given name.