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Combine check and its for

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They were seven different parts at the beginning. Finally, they become one.
This commit is contained in:
RPRX 2023-02-09 19:57:16 +08:00 committed by GitHub
parent 5e6719eaf3
commit 02fa0dd5f6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 24 deletions
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34
tls.go
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@ -305,19 +305,19 @@ func Server(conn net.Conn, config *Config) (*Conn, error) {
if len(s2cSaved) > size {
break
}
check := func(i int) int {
for i := 0; i < 7; i++ {
if hs.c.out.handshakeLen[i] != 0 {
return 0
continue
}
if i == 6 && len(s2cSaved) == 0 {
return 0
break
}
if handshakeLen == 0 && len(s2cSaved) > recordHeaderLen {
if Value(s2cSaved[1:3]...) != VersionTLS12 ||
(i == 0 && (recordType(s2cSaved[0]) != recordTypeHandshake || s2cSaved[5] != typeServerHello)) ||
(i == 1 && (recordType(s2cSaved[0]) != recordTypeChangeCipherSpec || s2cSaved[5] != 1)) ||
(i > 1 && recordType(s2cSaved[0]) != recordTypeApplicationData) {
return -1
break f
}
handshakeLen = recordHeaderLen + Value(s2cSaved[3:5]...)
}
@ -325,23 +325,23 @@ func Server(conn net.Conn, config *Config) (*Conn, error) {
fmt.Printf("REALITY remoteAddr: %v\tlen(s2cSaved): %v\t%v: %v\n", remoteAddr, len(s2cSaved), names[i], handshakeLen)
}
if handshakeLen > size { // too long
return -1
break f
}
if i == 1 && handshakeLen > 0 && handshakeLen != 6 {
return -1
break f
}
if i == 2 && handshakeLen > 512 {
hs.c.out.handshakeLen[i] = handshakeLen
hs.c.out.handshakeBuf = s2cSaved[:0]
return 2
break
}
if i == 6 && handshakeLen > 0 {
hs.c.out.handshakeLen[i] = handshakeLen
return 0
break
}
if handshakeLen == 0 || len(s2cSaved) < handshakeLen {
mutex.Unlock()
return 1
continue f
}
if i == 0 {
hs.hello = new(serverHelloMsg)
@ -349,27 +349,13 @@ func Server(conn net.Conn, config *Config) (*Conn, error) {
hs.hello.vers != VersionTLS12 || hs.hello.supportedVersion != VersionTLS13 ||
cipherSuiteTLS13ByID(hs.hello.cipherSuite) == nil ||
hs.hello.serverShare.group != X25519 || len(hs.hello.serverShare.data) != 32 {
return -1
break f
}
}
hs.c.out.handshakeLen[i] = handshakeLen
s2cSaved = s2cSaved[handshakeLen:]
handshakeLen = 0
return 0
}
for i := 0; i < 7; i++ {
switch check(i) {
case 2:
goto handshake
case 1:
continue f
case 0:
continue
case -1:
break f
}
}
handshake:
err = hs.handshake()
if config.Show {
fmt.Printf("REALITY remoteAddr: %v\ths.handshake() err: %v\n", remoteAddr, err)