Module ssl 

TLS — SSL_CTX, SSL, and SSL_SESSION wrappers.

Types

Type	Owned / Shared	Description
SslCtx	Shared (Clone)	TLS context — configuration, certs, keys
Ssl	Exclusive	Per-connection TLS object
SslSession	Shared (Clone)	Resumable TLS session handle

Protocol version

SSL_CTX_set_min_proto_version / SSL_CTX_set_max_proto_version are C macros that expand to SSL_CTX_ctrl(ctx, 123 / 124, version, NULL). This module calls SSL_CTX_ctrl directly since bindgen cannot expose C macros as functions.

SNI hostname

SSL_set_tlsext_host_name is a C macro expanding to SSL_ctrl(s, 55, 0, name). Use Ssl::set_hostname to set the SNI extension.

BIO ownership

SSL_set_bio transfers ownership of the supplied BIO* pointers to the SSL object. Ssl::set_bio_duplex accepts a single crate::bio::Bio for the common case where the same BIO serves as both read and write channel (e.g. the output of BIO_new_bio_pair).

Structs

Ssl

Per-connection TLS object (SSL*).

SslCtx

TLS context (SSL_CTX*).

SslSession

A TLS session handle (SSL_SESSION*).

SslVerifyMode

Certificate verification mode flags.

Enums

ShutdownResult

Result of Ssl::shutdown.

SslIoError

Error returned by non-blocking SSL I/O operations.

TlsVersion

TLS protocol version selector.