79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
package capture
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import (
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"equipment-analyzer/internal/model"
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"fmt"
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"github.com/google/gopacket/pcap"
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"log"
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)
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// GetNetworkInterfaces 获取网络接口列表
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func GetNetworkInterfaces() ([]model.NetworkInterface, error) {
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devices, err := pcap.FindAllDevs()
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if err != nil {
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return nil, fmt.Errorf("failed to find network devices: %v", err)
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}
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log.Printf("抓取到的网卡设备数量: %d", len(devices)) // 打印网卡总数
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var interfaces []model.NetworkInterface
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for _, device := range devices {
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// 跳过回环接口
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if device.Name == "lo" || device.Name == "loopback" {
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continue
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}
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log.Printf("网卡名称: %s, 描述: %s", device.Name, device.Description) // 打印每个网卡的名称和描述
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// 提取IP地址
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var addresses []string
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for _, address := range device.Addresses {
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addresses = append(addresses, address.IP.String())
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}
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interfaceInfo := model.NetworkInterface{
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Name: device.Name,
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Description: device.Description,
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Addresses: addresses,
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IsLoopback: device.Name == "lo" || device.Name == "loopback",
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}
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interfaces = append(interfaces, interfaceInfo)
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}
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return interfaces, nil
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}
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// GetDefaultInterface 获取默认网络接口
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func GetDefaultInterface() (*model.NetworkInterface, error) {
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interfaces, err := GetNetworkInterfaces()
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if err != nil {
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return nil, err
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}
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// 查找第一个非回环接口
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for _, iface := range interfaces {
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if !iface.IsLoopback && len(iface.Addresses) > 0 {
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return &iface, nil
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}
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}
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return nil, fmt.Errorf("no suitable network interface found")
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}
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// ValidateInterface 验证网络接口是否可用
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func ValidateInterface(interfaceName string) error {
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devices, err := pcap.FindAllDevs()
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if err != nil {
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return fmt.Errorf("failed to find network devices: %v", err)
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}
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for _, device := range devices {
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if device.Name == interfaceName {
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return nil
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}
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}
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return fmt.Errorf("interface %s not found", interfaceName)
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}
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