Replace netstat from net-tools by ip from iproute2 (linux)

net/net_linux.go

@@ -0,0 +1,20 @@
+package net
+
+import "regexp"
+
+// only matches gateway lines
+var IPv4RouteParser = regexp.MustCompile("^(default|[0-9\\.]+)\\svia\\s([0-9\\.]+)\\sdev\\s(\\w+)\\s.*$")
+var IPv4RouteTokens = 4
+var IPv4RouteCmd = "ip"
+var IPv4RouteCmdOpts = []string{"route"}
+
+func IPv4RouteIsGateway(ifname string, tokens []string, f func(gateway string) (*Endpoint, error)) (*Endpoint, error) {
+	ifname2 := tokens[3]
+
+	if ifname == ifname2 {
+		gateway := tokens[2]
+		return f(gateway)
+	}
+
+	return nil, nil
+}