improve: 为 linux 添加可靠的网卡绑定

tools/http_linux.go

@@ -0,0 +1,45 @@
+package tools
+
+import (
+	"github.com/Mmx233/BitSrunLoginGo/internal/global"
+	"github.com/Mmx233/tool"
+	"net"
+	"net/http"
+	"syscall"
+)
+
+func genHttpPack(eth *Eth) *Http {
+	dialer := net.Dialer{
+		Timeout: global.Timeout,
+	}
+	if eth != nil {
+		dialer.LocalAddr = eth.Addr
+		ethName := eth.Name
+		dialer.Control = func(network string, address string, c syscall.RawConn) error {
+			var operr error
+			fn := func(fd uintptr) {
+				operr = syscall.SetsockoptString(int(fd), syscall.SOL_SOCKET, syscall.SO_BINDTODEVICE, ethName)
+			}
+			if err := c.Control(fn); err != nil {
+				return err
+			}
+			if operr != nil {
+				return operr
+			}
+			return nil
+		}
+	}
+
+	tr := &http.Transport{
+		DialContext:         dialer.DialContext,
+		TLSHandshakeTimeout: global.Timeout,
+		IdleConnTimeout:     global.Timeout,
+	}
+	tr.Proxy = http.ProxyFromEnvironment
+	return &Http{
+		Client: tool.GenHttpClient(&tool.HttpClientOptions{
+			Transport: tr,
+			Timeout:   global.Timeout,
+		}),
+	}
+}