mirror of
https://github.com/oneclickvirt/basics.git
synced 2025-10-08 10:00:29 +08:00
91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
package ipv6
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import (
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"fmt"
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"net"
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"strings"
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"time"
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"github.com/imroc/req/v3"
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)
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// 获取第一个以 eth 或 en 开头的网络接口
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func getInterface() (string, error) {
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interfaces, err := net.Interfaces()
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if err != nil {
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return "", err
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}
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// 优先查找以 eth 或 en 开头的接口
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for _, iface := range interfaces {
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if strings.HasPrefix(iface.Name, "eth") || strings.HasPrefix(iface.Name, "en") {
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return iface.Name, nil
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}
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}
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// 如果没有找到，返回第一个非回环且启用的接口
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for _, iface := range interfaces {
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if iface.Flags&net.FlagLoopback == 0 && iface.Flags&net.FlagUp != 0 {
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return iface.Name, nil
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}
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}
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return "", fmt.Errorf("未找到合适的网络接口")
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}
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// 获取当前的公网 IPv6 地址
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func getCurrentIPv6() (string, error) {
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// 创建一个新的req客户端，设置超时
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client := req.C().SetTimeout(5 * time.Second)
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client.SetTimeout(6 * time.Second)
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// 尝试多个 IPv6 检测服务
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urls := []string{
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"https://ipv6.ip.sb",
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"https://api6.ipify.org",
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"https://v6.ident.me",
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}
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var lastErr error
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for _, url := range urls {
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resp, err := client.R().Get(url)
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if err != nil {
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lastErr = err
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continue
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}
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body := resp.String()
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ipv6 := strings.TrimSpace(body)
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if net.ParseIP(ipv6) != nil && strings.Contains(ipv6, ":") {
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return ipv6, nil
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}
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}
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if lastErr != nil {
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return "", lastErr
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}
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return "", fmt.Errorf("无法获取公网IPv6地址")
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}
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// 判断是否为非全局单播地址前缀
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func isNonGlobalPrefix(prefix [16]byte) bool {
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// 链路本地地址 fe80::/10
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if prefix[0] == 0xfe && (prefix[1]&0xc0) == 0x80 {
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return true
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}
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// 唯一本地地址 fc00::/7
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if (prefix[0] & 0xfe) == 0xfc {
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return true
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}
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// 回环地址 ::1
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if prefix[0] == 0 && prefix[1] == 0 && prefix[15] == 1 {
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return true
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}
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// 组播地址 ff00::/8
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if prefix[0] == 0xff {
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return true
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}
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return false
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}
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// 格式化返回IPv6子网掩码
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func formatIPv6Mask(prefixLen string, language string) string {
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if language == "en" {
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return fmt.Sprintf(" IPv6 Mask : /%s", prefixLen)
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}
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return fmt.Sprintf(" IPv6 子网掩码 : /%s", prefixLen)
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}
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