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chore: add parse-pure-ip in sniffer

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This commit is contained in:
wwqgtxx 2022-10-14 08:42:28 +08:00
parent c11a359761
commit 023e3d0c41
3 changed files with 25 additions and 7 deletions
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23
component/sniffer/dispatcher.go
View file

@ -38,6 +38,7 @@ type SnifferDispatcher struct {
rwMux sync.RWMutex
forceDnsMapping bool
parsePureIp bool
}
func (sd *SnifferDispatcher) TCPSniff(conn net.Conn, metadata *C.Metadata) {
@ -46,7 +47,7 @@ func (sd *SnifferDispatcher) TCPSniff(conn net.Conn, metadata *C.Metadata) {
return
}
if metadata.Host == "" || sd.forceDomain.Search(metadata.Host) != nil || (metadata.DNSMode == C.DNSMapping && sd.forceDnsMapping) {
if (metadata.Host == "" && sd.parsePureIp) || sd.forceDomain.Search(metadata.Host) != nil || (metadata.DNSMode == C.DNSMapping && sd.forceDnsMapping) {
port, err := strconv.ParseUint(metadata.DstPort, 10, 16)
if err != nil {
log.Debugln("[Sniffer] Dst port is error")
@ -98,10 +99,18 @@ func (sd *SnifferDispatcher) replaceDomain(metadata *C.Metadata, host string) {
if metadata.DstIP.IsValid() {
dstIP = metadata.DstIP.String()
}
log.Debugln("[Sniffer] Sniff TCP [%s:%s]-->[%s:%s] success, replace domain [%s]-->[%s]",
metadata.SrcIP, metadata.SrcPort,
dstIP, metadata.DstPort,
metadata.Host, host)
originHost := metadata.Host
if originHost != host {
log.Infoln("[Sniffer] Sniff TCP [%s:%s]-->[%s:%s] success, replace domain [%s]-->[%s]",
metadata.SrcIP, metadata.SrcPort,
dstIP, metadata.DstPort,
metadata.Host, host)
} else {
log.Debugln("[Sniffer] Sniff TCP [%s:%s]-->[%s:%s] success, replace domain [%s]-->[%s]",
metadata.SrcIP, metadata.SrcPort,
dstIP, metadata.DstPort,
metadata.Host, host)
}
metadata.AddrType = C.AtypDomainName
metadata.Host = host
@ -175,7 +184,8 @@ func NewCloseSnifferDispatcher() (*SnifferDispatcher, error) {
}
func NewSnifferDispatcher(needSniffer []sniffer.Type, forceDomain *trie.DomainTrie[bool],
skipSNI *trie.DomainTrie[bool], ports *[]utils.Range[uint16], forceDnsMapping bool) (*SnifferDispatcher, error) {
skipSNI *trie.DomainTrie[bool], ports *[]utils.Range[uint16],
forceDnsMapping bool, parsePureIp bool) (*SnifferDispatcher, error) {
dispatcher := SnifferDispatcher{
enable: true,
forceDomain: forceDomain,
@ -183,6 +193,7 @@ func NewSnifferDispatcher(needSniffer []sniffer.Type, forceDomain *trie.DomainTr
portRanges: ports,
skipList: cache.NewLRUCache[string, uint8](cache.WithSize[string, uint8](128), cache.WithAge[string, uint8](600)),
forceDnsMapping: forceDnsMapping,
parsePureIp: parsePureIp,
}
for _, snifferName := range needSniffer {

4
config/config.go
View file

@ -202,6 +202,7 @@ type Sniffer struct {
SkipDomain *trie.DomainTrie[bool]
Ports *[]utils.Range[uint16]
ForceDnsMapping bool
ParsePureIp bool
}
// Experimental config
@ -332,6 +333,7 @@ type RawSniffer struct {
SkipDomain []string `yaml:"skip-domain" json:"skip-domain"`
Ports []string `yaml:"port-whitelist" json:"port-whitelist"`
ForceDnsMapping bool `yaml:"force-dns-mapping" json:"force-dns-mapping"`
ParsePureIp bool `yaml:"parse-pure-ip" json:"parse-pure-ip"`
}
// EBpf config
@ -427,6 +429,7 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
SkipDomain: []string{},
Ports: []string{},
ForceDnsMapping: true,
ParsePureIp: true,
},
Profile: Profile{
StoreSelected: true,
@ -1178,6 +1181,7 @@ func parseSniffer(snifferRaw RawSniffer) (*Sniffer, error) {
sniffer := &Sniffer{
Enable: snifferRaw.Enable,
ForceDnsMapping: snifferRaw.ForceDnsMapping,
ParsePureIp: snifferRaw.ParsePureIp,
}
var ports []utils.Range[uint16]

5
hub/executor/executor.go
View file

@ -265,7 +265,10 @@ func updateTun(tun *config.Tun) {
func updateSniffer(sniffer *config.Sniffer) {
if sniffer.Enable {
dispatcher, err := SNI.NewSnifferDispatcher(sniffer.Sniffers, sniffer.ForceDomain, sniffer.SkipDomain, sniffer.Ports, sniffer.ForceDnsMapping)
dispatcher, err := SNI.NewSnifferDispatcher(
sniffer.Sniffers, sniffer.ForceDomain, sniffer.SkipDomain, sniffer.Ports,
sniffer.ForceDnsMapping, sniffer.ParsePureIp,
)
if err != nil {
log.Warnln("initial sniffer failed, err:%v", err)
}