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style: rename vars to avoid namespace pollution

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This commit is contained in:
KujouRinka 2024-01-27 11:17:39 +08:00
parent 90542be7f2
commit ddfb2ce2af
1 changed files with 36 additions and 36 deletions
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72
analyzer/tcp/socks5.go
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@ -10,20 +10,20 @@ import (
const (
Socks5Version = 0x05
CmdTCPConnect = 0x01
CmdTCPBind = 0x02
CmdUDPAssociate = 0x03
Socks5CmdTCPConnect = 0x01
Socks5CmdTCPBind = 0x02
Socks5CmdUDPAssociate = 0x03
AuthNotRequired = 0x00
AuthPassword = 0x02
AuthNoMatchingMethod = 0xFF
Socks5AuthNotRequired = 0x00
Socks5AuthPassword = 0x02
Socks5AuthNoMatchingMethod = 0xFF
AuthSuccess = 0x00
AuthFailure = 0x01
Socks5AuthSuccess = 0x00
Socks5AuthFailure = 0x01
AddrTypeIPv4 = 0x01
AddrTypeDomain = 0x03
AddrTypeIPv6 = 0x04
Socks5AddrTypeIPv4 = 0x01
Socks5AddrTypeDomain = 0x03
Socks5AddrTypeIPv6 = 0x04
)
var _ analyzer.Analyzer = (*Socks5Analyzer)(nil)
@ -40,7 +40,7 @@ func (a *Socks5Analyzer) Limit() int {
}
func (a *Socks5Analyzer) NewTCP(info analyzer.TCPInfo, logger analyzer.Logger) analyzer.TCPStream {
return newSocksStream(logger)
return newSocks5Stream(logger)
}
type socks5Stream struct {
@ -65,7 +65,7 @@ type socks5Stream struct {
authRespMethod int
}
func newSocksStream(logger analyzer.Logger) *socks5Stream {
func newSocks5Stream(logger analyzer.Logger) *socks5Stream {
s := &socks5Stream{logger: logger, reqBuf: &utils.ByteBuffer{}, respBuf: &utils.ByteBuffer{}}
s.reqLSM = utils.NewLinearStateMachine(
s.parseSocks5ReqVersion,
@ -146,14 +146,14 @@ func (s *socks5Stream) parseSocks5ReqMethod() utils.LSMAction {
}
// For convenience, we only take the first method we can process
s.authReqMethod = AuthNoMatchingMethod
s.authReqMethod = Socks5AuthNoMatchingMethod
for _, method := range methods[1:] {
switch method {
case AuthNotRequired:
s.authReqMethod = AuthNotRequired
case Socks5AuthNotRequired:
s.authReqMethod = Socks5AuthNotRequired
break
case AuthPassword:
s.authReqMethod = AuthPassword
case Socks5AuthPassword:
s.authReqMethod = Socks5AuthPassword
break
default:
// TODO: more auth method to support
@ -165,9 +165,9 @@ func (s *socks5Stream) parseSocks5ReqMethod() utils.LSMAction {
func (s *socks5Stream) parseSocks5ReqAuth() utils.LSMAction {
switch s.authReqMethod {
case AuthNotRequired:
case Socks5AuthNotRequired:
s.reqMap["auth"] = analyzer.PropMap{"method": s.authReqMethod}
case AuthPassword:
case Socks5AuthPassword:
meta, ok := s.reqBuf.Get(2, false)
if !ok {
return utils.LSMActionPause
@ -211,18 +211,18 @@ func (s *socks5Stream) parseSocks5ReqConnInfo() utils.LSMAction {
}
// verify socks version
if preInfo[0] != 0x05 {
if preInfo[0] != Socks5Version {
return utils.LSMActionCancel
}
var pktLen int
switch int(preInfo[3]) {
case AddrTypeIPv4:
case Socks5AddrTypeIPv4:
pktLen = 10
case AddrTypeDomain:
case Socks5AddrTypeDomain:
domainLen := int(preInfo[4])
pktLen = 7 + domainLen
case AddrTypeIPv6:
case Socks5AddrTypeIPv6:
pktLen = 22
default:
return utils.LSMActionCancel
@ -235,7 +235,7 @@ func (s *socks5Stream) parseSocks5ReqConnInfo() utils.LSMAction {
// parse cmd
cmd := int(pkt[1])
if cmd != CmdTCPConnect && cmd != CmdTCPBind && cmd != CmdUDPAssociate {
if cmd != Socks5CmdTCPConnect && cmd != Socks5CmdTCPBind && cmd != Socks5CmdUDPAssociate {
return utils.LSMActionCancel
}
s.reqMap["cmd"] = cmd
@ -244,11 +244,11 @@ func (s *socks5Stream) parseSocks5ReqConnInfo() utils.LSMAction {
addrType := int(pkt[3])
var addr string
switch addrType {
case AddrTypeIPv4:
case Socks5AddrTypeIPv4:
addr = net.IPv4(pkt[4], pkt[5], pkt[6], pkt[7]).String()
case AddrTypeDomain:
case Socks5AddrTypeDomain:
addr = string(pkt[5 : 5+pkt[4]])
case AddrTypeIPv6:
case Socks5AddrTypeIPv6:
addr = net.IP(pkt[4 : 4+net.IPv6len]).String()
default:
return utils.LSMActionCancel
@ -278,9 +278,9 @@ func (s *socks5Stream) parseSocks5RespVerAndMethod() utils.LSMAction {
func (s *socks5Stream) parseSocks5RespAuth() utils.LSMAction {
switch s.authRespMethod {
case AuthNotRequired:
case Socks5AuthNotRequired:
s.respMap["auth"] = analyzer.PropMap{"method": s.authRespMethod}
case AuthPassword:
case Socks5AuthPassword:
authResp, ok := s.respBuf.Get(2, true)
if !ok {
return utils.LSMActionPause
@ -318,12 +318,12 @@ func (s *socks5Stream) parseSocks5RespConnInfo() utils.LSMAction {
var pktLen int
switch int(preInfo[3]) {
case AddrTypeIPv4:
case Socks5AddrTypeIPv4:
pktLen = 10
case AddrTypeDomain:
case Socks5AddrTypeDomain:
domainLen := int(preInfo[4])
pktLen = 7 + domainLen
case AddrTypeIPv6:
case Socks5AddrTypeIPv6:
pktLen = 22
default:
return utils.LSMActionCancel
@ -342,11 +342,11 @@ func (s *socks5Stream) parseSocks5RespConnInfo() utils.LSMAction {
addrType := int(pkt[3])
var addr string
switch addrType {
case AddrTypeIPv4:
case Socks5AddrTypeIPv4:
addr = net.IPv4(pkt[4], pkt[5], pkt[6], pkt[7]).String()
case AddrTypeDomain:
case Socks5AddrTypeDomain:
addr = string(pkt[5 : 5+pkt[4]])
case AddrTypeIPv6:
case Socks5AddrTypeIPv6:
addr = net.IP(pkt[4 : 4+net.IPv6len]).String()
default:
return utils.LSMActionCancel