Enum TransportKind 

pub enum TransportKind {
    Abridged,
    Intermediate,
    Full,
    Obfuscated {
        secret: Option<[u8; 16]>,
    },
    PaddedIntermediate {
        secret: Option<[u8; 16]>,
    },
    FakeTls {
        secret: [u8; 16],
        domain: String,
    },
}

Which MTProto transport framing to use for all connections.

Variant	Init bytes	Notes
Abridged	0xef	Smallest overhead
Intermediate	0xeeeeeeee	Better proxy compat
Full	none	Adds seqno + CRC32
Obfuscated	random 64B	Bypasses DPI / MTProxy: default
PaddedIntermediate	random 64B (0xDDDDDDDD tag)	Obfuscated padded intermediate required for 0xDD MTProxy secrets
FakeTls	TLS 1.3 ClientHello	Most DPI-resistant; required for 0xEE MTProxy secrets

Variants

Abridged

MTProto Abridged transport: length prefix is 1 or 4 bytes.

Intermediate

MTProto Intermediate transport: 4-byte LE length prefix.

Full

MTProto Full transport: 4-byte length + seqno + CRC32.

Obfuscated

Obfuscated2 transport: AES-256-CTR over Abridged framing. Required for MTProxy and networks with deep-packet inspection. Default: works on all networks, bypasses DPI, negligible CPU cost.

secret is the 16-byte MTProxy secret, or None for keyless obfuscation.

Fields

secret: Option<[u8; 16]>

PaddedIntermediate

Obfuscated PaddedIntermediate transport (0xDDDDDDDD tag in nonce).

Same AES-256-CTR obfuscation as Obfuscated, but uses Intermediate framing and appends 0–15 random padding bytes to each frame so that all frames are not 4-byte multiples. Required for 0xDD MTProxy secrets.

Fields

secret: Option<[u8; 16]>

FakeTls

FakeTLS transport (0xEE prefix in MTProxy secret).

Wraps all MTProto data in fake TLS 1.3 records. The ClientHello embeds an HMAC-SHA256 digest of the secret so the MTProxy server can validate ownership without decrypting real TLS. Most DPI-resistant mode; required for 0xEE MTProxy secrets.

Fields

secret: [u8; 16]

domain: String

Trait Implementations

impl Clone for TransportKind

fn clone(&self) -> TransportKind

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TransportKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TransportKind

fn default() -> Self

Returns the “default value” for a type.