sec_protocol_options_set_tls_is_fallback_attempt(_:_:)

Declaration

func sec_protocol_options_set_tls_is_fallback_attempt(_ options: sec_protocol_options_t, _ is_fallback_attempt: Bool)

Parameters

• options:

  A sec_protocol_options_t instance.

• is_fallback_attempt:

  Set a flag indicating that this is a TLS fallback attempt.

Discussion

Signal if this is a TLS fallback attempt.

 A fallback attempt is one following a previously failed TLS connection
 due to version or parameter incompatibility, e.g., when speaking to a server
 that does not support a client-offered ciphersuite.

 Clients MUST NOT enable fallback for fresh connections.