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Update fingerprints + add default spec version (#25)

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Update fingerprints + add default spec version

 * Adds fingerprints for Chrome 75, iOS 12.1, and Firefox 65(=Firefox 63)
 * If min/max tls versions are not explicitly specified in the ClientHelloSpec,
   uTLS will try to parse versions from SupportedVersions extension,
   and fallback to [TLS 1.0, TLS 1.2] if SupportedVersions is absent.
 * Adds mimicked FakeRecordSizeLimitExtension and FakeCertCompressionAlgsExtension
   to be used instead of GenericExtension{} for clarity and extensibility
   (we are ready to use those with Firefox and Chrome fps with correct values
   whenever actual functionality is implemented)
* SetTLSVers: parse the right extensions + cosmetics
This commit is contained in:
sergeyfrolov 2019-03-27 10:53:10 -06:00 • committed by GitHub
parent 05163f8a36
commit b7c656eec2
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5 changed files with 310 additions and 46 deletions
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30
u_common.go
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@ -58,8 +58,21 @@ var (
FakeFFDHE3072 = uint16(0x0101)
)
// https://tools.ietf.org/html/draft-ietf-tls-certificate-compression-04
type CertCompressionAlgo uint16
const (
CertCompressionZlib CertCompressionAlgo = 0x0001
CertCompressionBrotli CertCompressionAlgo = 0x0002
)
const (
PskModePlain uint8 = pskModePlain
PskModeDHE uint8 = pskModeDHE
)
type ClientHelloID struct {
Client string
Client string
// Version specifies version of a mimicked clients (e.g. browsers).
// Not used in randomized, custom handshake, and default Go.
@ -99,8 +112,8 @@ type ClientHelloSpec struct {
CompressionMethods []uint8 // nil => no compression
Extensions []TLSExtension // nil => no extensions
TLSVersMin uint16 // [1.0-1.3]
TLSVersMax uint16 // [1.2-1.3]
TLSVersMin uint16 // [1.0-1.3] default: parse from .Extensions, if SupportedVersions ext is not present => 1.0
TLSVersMax uint16 // [1.2-1.3] default: parse from .Extensions, if SupportedVersions ext is not present => 1.2
// GreaseStyle: currently only random
// sessionID may or may not depend on ticket; nil => random
@ -126,18 +139,21 @@ var (
HelloRandomizedNoALPN = ClientHelloID{helloRandomizedNoALPN, helloAutoVers, nil}
// The rest will will parrot given browser.
HelloFirefox_Auto = HelloFirefox_63
HelloFirefox_Auto = HelloFirefox_65
HelloFirefox_55 = ClientHelloID{helloFirefox, "55", nil}
HelloFirefox_56 = ClientHelloID{helloFirefox, "56", nil}
HelloFirefox_63 = ClientHelloID{helloFirefox, "63", nil}
HelloFirefox_65 = ClientHelloID{helloFirefox, "65", nil}
HelloChrome_Auto = HelloChrome_70
HelloChrome_Auto = HelloChrome_72
HelloChrome_58 = ClientHelloID{helloChrome, "58", nil}
HelloChrome_62 = ClientHelloID{helloChrome, "62", nil}
HelloChrome_70 = ClientHelloID{helloChrome, "70", nil}
HelloChrome_72 = ClientHelloID{helloChrome, "72", nil}
HelloIOS_Auto = HelloIOS_11_1
HelloIOS_11_1 = ClientHelloID{helloIOS, "111", nil}
HelloIOS_Auto = HelloIOS_12_1
HelloIOS_11_1 = ClientHelloID{helloIOS, "111", nil} // legacy "111" means 11.1
HelloIOS_12_1 = ClientHelloID{helloIOS, "12.1", nil}
)
// based on spec's GreaseStyle, GREASE_PLACEHOLDER may be replaced by another GREASE value