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feat: dns upstream

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This commit is contained in:
mzz2017
2023-01-24 17:15:27 +08:00
parent 14b215752f
commit 686d6dedc3
4 changed files with 59 additions and 23 deletions
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31
component/control/control_plane.go
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@ -44,7 +44,9 @@ type ControlPlane struct {
// mutex protects the dnsCache.
mutex sync.Mutex
dnsCache map[string]*dnsCache
epoch uint32
// Deprecated
epoch uint32
dnsUpstream netip.AddrPort
deferFuncs []func() error
}
@ -92,12 +94,12 @@ retry_load:
if err := bpf.ParamMap.Update(consts.DisableL4RxChecksumKey, consts.DisableL4ChecksumPolicy_SetZero, ebpf.UpdateAny); err != nil {
return nil, err
}
var epoch uint32
bpf.ParamMap.Lookup(consts.EpochKey, &epoch)
epoch++
if err := bpf.ParamMap.Update(consts.EpochKey, epoch, ebpf.UpdateAny); err != nil {
return nil, err
}
//var epoch uint32
//bpf.ParamMap.Lookup(consts.EpochKey, &epoch)
//epoch++
//if err := bpf.ParamMap.Update(consts.EpochKey, epoch, ebpf.UpdateAny); err != nil {
// return nil, err
//}
//if err := bpf.ParamMap.Update(consts.InterfaceIpParamOff, binary.LittleEndian.Uint32([]byte{172, 17, 0, 1}), ebpf.UpdateAny); err != nil { // 172.17.0.1
// return nil, err
//}
@ -110,6 +112,16 @@ retry_load:
// return
//}
cfDnsAddr := netip.AddrFrom4([4]byte{1, 1, 1, 1})
cfDnsAddr16 := cfDnsAddr.As16()
cfDnsPort := uint16(53)
if err := bpf.DnsUpstreamMap.Update(consts.ZeroKey, bpfIpPort{
Ip: common.Ipv6ByteSliceToUint32Array(cfDnsAddr16[:]),
Port: swap16(cfDnsPort),
}, ebpf.UpdateAny); err != nil {
return nil, err
}
/**/
// TODO:
d, err := dialer.NewFromLink("socks5://localhost:1080#proxy")
@ -177,8 +189,9 @@ retry_load:
Final: final,
mutex: sync.Mutex{},
dnsCache: make(map[string]*dnsCache),
epoch: epoch,
deferFuncs: []func() error{bpf.Close},
dnsUpstream: netip.AddrPortFrom(cfDnsAddr, cfDnsPort),
//epoch: epoch,
deferFuncs: []func() error{bpf.Close},
}, nil
}