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refactor(pcap): switch to pcapgo

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This commit is contained in:
Haruue 2024-05-08 19:22:17 +08:00
parent 8cab86b924
commit 7456e5907e
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1 changed files with 13 additions and 5 deletions
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18
io/pcap.go
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@ -3,19 +3,22 @@ package io
import (
"context"
"hash/crc32"
"io"
"net"
"os"
"sort"
"strings"
"time"
"github.com/google/gopacket"
"github.com/google/gopacket/pcap"
"github.com/google/gopacket/pcapgo"
)
var _ PacketIO = (*pcapPacketIO)(nil)
type pcapPacketIO struct {
pcap *pcap.Handle
pcapFile io.ReadCloser
pcap *pcapgo.Reader
lastTime *time.Time
ioCancel context.CancelFunc
config PcapPacketIOConfig
@ -29,12 +32,18 @@ type PcapPacketIOConfig struct {
}
func NewPcapPacketIO(config PcapPacketIOConfig) (PacketIO, error) {
handle, err := pcap.OpenOffline(config.PcapFile)
pcapFile, err := os.Open(config.PcapFile)
if err != nil {
return nil, err
}
handle, err := pcapgo.NewReader(pcapFile)
if err != nil {
return nil, err
}
return &pcapPacketIO{
pcapFile: pcapFile,
pcap: handle,
lastTime: nil,
ioCancel: nil,
@ -87,8 +96,7 @@ func (p *pcapPacketIO) SetCancelFunc(cancelFunc context.CancelFunc) error {
}
func (p *pcapPacketIO) Close() error {
p.pcap.Close()
return nil
return p.pcapFile.Close()
}
// Intentionally slow down the replay