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chore: do not apply padding for nonTLS packet with contentLen over 900

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This commit is contained in:
gVisor bot 2023-03-07 16:34:57 +08:00
parent a0760ece28
commit e7a8b23efa
1 changed files with 16 additions and 12 deletions
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28
transport/vless/vision.go
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@ -24,13 +24,15 @@ var mutex sync.RWMutex
func WriteWithPadding(buffer *buf.Buffer, p []byte, command byte, userUUID *uuid.UUID, paddingTLS bool) { func WriteWithPadding(buffer *buf.Buffer, p []byte, command byte, userUUID *uuid.UUID, paddingTLS bool) {
contentLen := int32(len(p)) contentLen := int32(len(p))
mutex.Lock()
var paddingLen int32 var paddingLen int32
if contentLen < 900 && paddingTLS { mutex.Lock()
//log.Debugln("long padding") if contentLen < 900 {
paddingLen = fastrand.Int31n(500) + 900 - contentLen if paddingTLS {
} else { //log.Debugln("long padding")
paddingLen = fastrand.Int31n(256) paddingLen = fastrand.Int31n(500) + 900 - contentLen
} else {
paddingLen = fastrand.Int31n(256)
}
} }
mutex.Unlock() mutex.Unlock()
if userUUID != nil { // unnecessary, but keep the same with Xray if userUUID != nil { // unnecessary, but keep the same with Xray
@ -48,13 +50,15 @@ func WriteWithPadding(buffer *buf.Buffer, p []byte, command byte, userUUID *uuid
func ApplyPadding(buffer *buf.Buffer, command byte, userUUID *uuid.UUID, paddingTLS bool) { func ApplyPadding(buffer *buf.Buffer, command byte, userUUID *uuid.UUID, paddingTLS bool) {
contentLen := int32(buffer.Len()) contentLen := int32(buffer.Len())
mutex.Lock()
var paddingLen int32 var paddingLen int32
if contentLen < 900 && paddingTLS { mutex.Lock()
//log.Debugln("long padding") if contentLen < 900 {
paddingLen = fastrand.Int31n(500) + 900 - contentLen if paddingTLS {
} else { //log.Debugln("long padding")
paddingLen = fastrand.Int31n(256) paddingLen = fastrand.Int31n(500) + 900 - contentLen
} else {
paddingLen = fastrand.Int31n(256)
}
} }
mutex.Unlock() mutex.Unlock()