github.com/ooni/psiphon/tunnel-core@v0.0.0-20230105123940-fe12a24c96ee/oovendor/quic-go/internal/qtls/go115.go (about)

     1  //go:build go1.15 && !go1.16
     2  // +build go1.15,!go1.16
     3  
     4  package qtls
     5  
     6  import (
     7  	"crypto"
     8  	"crypto/cipher"
     9  	"crypto/tls"
    10  	"net"
    11  	"unsafe"
    12  
    13  	"github.com/ooni/psiphon/tunnel-core/oovendor/qtls-go1-15"
    14  )
    15  
    16  type (
    17  	// Alert is a TLS alert
    18  	Alert = qtls.Alert
    19  	// A Certificate is qtls.Certificate.
    20  	Certificate = qtls.Certificate
    21  	// CertificateRequestInfo contains inforamtion about a certificate request.
    22  	CertificateRequestInfo = qtls.CertificateRequestInfo
    23  	// A CipherSuiteTLS13 is a cipher suite for TLS 1.3
    24  	CipherSuiteTLS13 = qtls.CipherSuiteTLS13
    25  	// ClientHelloInfo contains information about a ClientHello.
    26  	ClientHelloInfo = qtls.ClientHelloInfo
    27  	// ClientSessionCache is a cache used for session resumption.
    28  	ClientSessionCache = qtls.ClientSessionCache
    29  	// ClientSessionState is a state needed for session resumption.
    30  	ClientSessionState = qtls.ClientSessionState
    31  	// A Config is a qtls.Config.
    32  	Config = qtls.Config
    33  	// A Conn is a qtls.Conn.
    34  	Conn = qtls.Conn
    35  	// ConnectionState contains information about the state of the connection.
    36  	ConnectionState = qtls.ConnectionStateWith0RTT
    37  	// EncryptionLevel is the encryption level of a message.
    38  	EncryptionLevel = qtls.EncryptionLevel
    39  	// Extension is a TLS extension
    40  	Extension = qtls.Extension
    41  	// ExtraConfig is the qtls.ExtraConfig
    42  	ExtraConfig = qtls.ExtraConfig
    43  	// RecordLayer is a qtls RecordLayer.
    44  	RecordLayer = qtls.RecordLayer
    45  )
    46  
    47  const (
    48  	// EncryptionHandshake is the Handshake encryption level
    49  	EncryptionHandshake = qtls.EncryptionHandshake
    50  	// Encryption0RTT is the 0-RTT encryption level
    51  	Encryption0RTT = qtls.Encryption0RTT
    52  	// EncryptionApplication is the application data encryption level
    53  	EncryptionApplication = qtls.EncryptionApplication
    54  )
    55  
    56  // AEADAESGCMTLS13 creates a new AES-GCM AEAD for TLS 1.3
    57  func AEADAESGCMTLS13(key, fixedNonce []byte) cipher.AEAD {
    58  	return qtls.AEADAESGCMTLS13(key, fixedNonce)
    59  }
    60  
    61  // Client returns a new TLS client side connection.
    62  func Client(conn net.Conn, config *Config, extraConfig *ExtraConfig) *Conn {
    63  	return qtls.Client(conn, config, extraConfig)
    64  }
    65  
    66  // Server returns a new TLS server side connection.
    67  func Server(conn net.Conn, config *Config, extraConfig *ExtraConfig) *Conn {
    68  	return qtls.Server(conn, config, extraConfig)
    69  }
    70  
    71  func GetConnectionState(conn *Conn) ConnectionState {
    72  	return conn.ConnectionStateWith0RTT()
    73  }
    74  
    75  // ToTLSConnectionState extracts the tls.ConnectionState
    76  func ToTLSConnectionState(cs ConnectionState) tls.ConnectionState {
    77  	return cs.ConnectionState
    78  }
    79  
    80  type cipherSuiteTLS13 struct {
    81  	ID     uint16
    82  	KeyLen int
    83  	AEAD   func(key, fixedNonce []byte) cipher.AEAD
    84  	Hash   crypto.Hash
    85  }
    86  
    87  //go:linkname cipherSuiteTLS13ByID github.com/ooni/psiphon/tunnel-core/oovendor/qtls-go1-15.cipherSuiteTLS13ByID
    88  func cipherSuiteTLS13ByID(id uint16) *cipherSuiteTLS13
    89  
    90  // CipherSuiteTLS13ByID gets a TLS 1.3 cipher suite.
    91  func CipherSuiteTLS13ByID(id uint16) *CipherSuiteTLS13 {
    92  	val := cipherSuiteTLS13ByID(id)
    93  	cs := (*cipherSuiteTLS13)(unsafe.Pointer(val))
    94  	return &qtls.CipherSuiteTLS13{
    95  		ID:     cs.ID,
    96  		KeyLen: cs.KeyLen,
    97  		AEAD:   cs.AEAD,
    98  		Hash:   cs.Hash,
    99  	}
   100  }
   101  
   102  // [Psiphon]
   103  
   104  func ReadClientHelloRandom(data []byte) ([]byte, error) {
   105  	return qtls.ReadClientHelloRandom(data)
   106  }