Struct openssl::ssl::ConnectConfiguration

pub struct ConnectConfiguration { /* fields omitted */ }

A type which allows for configuration of a client-side TLS session before connection.

Implementations

impl ConnectConfiguration

pub fn use_server_name_indication(self, use_sni: bool) -> ConnectConfiguration

A builder-style version of set_use_server_name_indication.

pub fn set_use_server_name_indication(&mut self, use_sni: bool)

Configures the use of Server Name Indication (SNI) when connecting.

Defaults to true.

pub fn verify_hostname(self, verify_hostname: bool) -> ConnectConfiguration

A builder-style version of set_verify_hostname.

pub fn set_verify_hostname(&mut self, verify_hostname: bool)

Configures the use of hostname verification when connecting.

Defaults to true.

Warning

You should think very carefully before you use this method. If hostname verification is not used, any valid certificate for any site will be trusted for use from any other. This introduces a significant vulnerability to man-in-the-middle attacks.

pub fn into_ssl(self, domain: &str) -> Result<Ssl, ErrorStack>

Returns an Ssl configured to connect to the provided domain.

The domain is used for SNI and hostname verification if enabled.

pub fn connect<S>(
    self,
    domain: &str,
    stream: S
) -> Result<SslStream<S>, HandshakeError<S>> where
    S: Read + Write, 

Initiates a client-side TLS session on a stream.

The domain is used for SNI and hostname verification if enabled.

Methods from Deref<Target = SslRef>

pub fn set_connect_state(&mut self)

Configure as an outgoing stream from a client.

This corresponds to SSL_set_connect_state.

pub fn set_accept_state(&mut self)

Configure as an incoming stream to a server.

This corresponds to SSL_set_accept_state.

pub fn set_verify(&mut self, mode: SslVerifyMode)

Like SslContextBuilder::set_verify.

This corresponds to SSL_set_verify.

pub fn verify_mode(&self) -> SslVerifyMode

Returns the verify mode that was set using set_verify.

This corresponds to SSL_get_verify_mode.

pub fn set_verify_callback<F>(&mut self, mode: SslVerifyMode, verify: F) where
    F: Fn(bool, &mut X509StoreContextRef) -> bool + 'static + Sync + Send, 

Like SslContextBuilder::set_verify_callback.

This corresponds to SSL_set_verify.

pub fn set_tmp_dh(&mut self, dh: &DhRef<Params>) -> Result<(), ErrorStack>

Like SslContextBuilder::set_tmp_dh.

This corresponds to SSL_set_tmp_dh.

pub fn set_tmp_dh_callback<F>(&mut self, callback: F) where
    F: Fn(&mut SslRef, bool, u32) -> Result<Dh<Params>, ErrorStack> + 'static + Sync + Send, 

Like SslContextBuilder::set_tmp_dh_callback.

This corresponds to SSL_set_tmp_dh_callback.

pub fn set_tmp_ecdh(&mut self, key: &EcKeyRef<Params>) -> Result<(), ErrorStack>

Like SslContextBuilder::set_tmp_ecdh.

This corresponds to SSL_set_tmp_ecdh.

pub fn set_alpn_protos(&mut self, protocols: &[u8]) -> Result<(), ErrorStack>

Like SslContextBuilder::set_alpn_protos.

Requires OpenSSL 1.0.2 or LibreSSL 2.6.1 or newer.

This corresponds to SSL_set_alpn_protos.

pub fn current_cipher(&self) -> Option<&SslCipherRef>

Returns the current cipher if the session is active.

This corresponds to SSL_get_current_cipher.

pub fn state_string(&self) -> &'static str

Returns a short string describing the state of the session.

This corresponds to SSL_state_string.

pub fn state_string_long(&self) -> &'static str

Returns a longer string describing the state of the session.

This corresponds to SSL_state_string_long.

pub fn set_hostname(&mut self, hostname: &str) -> Result<(), ErrorStack>

Sets the host name to be sent to the server for Server Name Indication (SNI).

It has no effect for a server-side connection.

This corresponds to SSL_set_tlsext_host_name.

pub fn peer_certificate(&self) -> Option<X509>

Returns the peer’s certificate, if present.

This corresponds to SSL_get_peer_certificate.

pub fn peer_cert_chain(&self) -> Option<&StackRef<X509>>

Returns the certificate chain of the peer, if present.

On the client side, the chain includes the leaf certificate, but on the server side it does not. Fun!

This corresponds to SSL_get_peer_cert_chain.

pub fn verified_chain(&self) -> Option<&StackRef<X509>>

Returns the verified certificate chain of the peer, including the leaf certificate.

If verification was not successful (i.e. verify_result does not return X509VerifyResult::OK), this chain may be incomplete or invalid.

Requires OpenSSL 1.1.0 or newer.

This corresponds to SSL_get0_verified_chain.

pub fn certificate(&self) -> Option<&X509Ref>

Like SslContext::certificate.

This corresponds to SSL_get_certificate.

pub fn private_key(&self) -> Option<&PKeyRef<Private>>

Like SslContext::private_key.

This corresponds to SSL_get_privatekey.

pub fn version(&self) -> &str

👎 Deprecated since 0.10.5:

renamed to version_str

pub fn version2(&self) -> Option<SslVersion>

Returns the protocol version of the session.

This corresponds to SSL_version.

pub fn version_str(&self) -> &'static str

Returns a string describing the protocol version of the session.

This corresponds to SSL_get_version.

pub fn selected_alpn_protocol(&self) -> Option<&[u8]>

Returns the protocol selected via Application Layer Protocol Negotiation (ALPN).

The protocol’s name is returned is an opaque sequence of bytes. It is up to the client to interpret it.

Requires OpenSSL 1.0.2 or LibreSSL 2.6.1 or newer.

This corresponds to SSL_get0_alpn_selected.

pub fn set_tlsext_use_srtp(&mut self, protocols: &str) -> Result<(), ErrorStack>

Enables the DTLS extension “use_srtp” as defined in RFC5764.

This corresponds to SSL_set_tlsext_use_srtp.

pub fn srtp_profiles(&self) -> Option<&StackRef<SrtpProtectionProfile>>

Gets all SRTP profiles that are enabled for handshake via set_tlsext_use_srtp

DTLS extension “use_srtp” as defined in RFC5764 has to be enabled.

This corresponds to SSL_get_srtp_profiles.

pub fn selected_srtp_profile(&self) -> Option<&SrtpProtectionProfileRef>

Gets the SRTP profile selected by handshake.

DTLS extension “use_srtp” as defined in RFC5764 has to be enabled.

This corresponds to SSL_get_selected_srtp_profile.

pub fn pending(&self) -> usize

Returns the number of bytes remaining in the currently processed TLS record.

If this is greater than 0, the next call to read will not call down to the underlying stream.

This corresponds to SSL_pending.

pub fn servername(&self, type_: NameType) -> Option<&str>

Returns the servername sent by the client via Server Name Indication (SNI).

It is only useful on the server side.

This corresponds to SSL_get_servername.

Note

While the SNI specification requires that servernames be valid domain names (and therefore ASCII), OpenSSL does not enforce this restriction. If the servername provided by the client is not valid UTF-8, this function will return None. The servername_raw method returns the raw bytes and does not have this restriction.

pub fn servername_raw(&self, type_: NameType) -> Option<&[u8]>

Returns the servername sent by the client via Server Name Indication (SNI).

It is only useful on the server side.

This corresponds to SSL_get_servername.

Note

Unlike servername, this method does not require the name be valid UTF-8.

pub fn set_ssl_context(&mut self, ctx: &SslContextRef) -> Result<(), ErrorStack>

Changes the context corresponding to the current connection.

It is most commonly used in the Server Name Indication (SNI) callback.

This corresponds to SSL_set_SSL_CTX.

pub fn ssl_context(&self) -> &SslContextRef

Returns the context corresponding to the current connection.

This corresponds to SSL_get_SSL_CTX.

pub fn param_mut(&mut self) -> &mut X509VerifyParamRef

Returns a mutable reference to the X509 verification configuration.

Requires OpenSSL 1.0.2 or newer.

This corresponds to SSL_get0_param.

pub fn verify_result(&self) -> X509VerifyResult

Returns the certificate verification result.

This corresponds to SSL_get_verify_result.

pub fn session(&self) -> Option<&SslSessionRef>

Returns a shared reference to the SSL session.

This corresponds to SSL_get_session.

pub fn client_random(&self, buf: &mut [u8]) -> usize

Copies the client_random value sent by the client in the TLS handshake into a buffer.

Returns the number of bytes copied, or if the buffer is empty, the size of the client_random value.

Requires OpenSSL 1.1.0 or newer.

This corresponds to SSL_get_client_random.

pub fn server_random(&self, buf: &mut [u8]) -> usize

Copies the server_random value sent by the server in the TLS handshake into a buffer.

Returns the number of bytes copied, or if the buffer is empty, the size of the server_random value.

Requires OpenSSL 1.1.0 or newer.

This corresponds to SSL_get_server_random.

pub fn export_keying_material(
    &self,
    out: &mut [u8],
    label: &str,
    context: Option<&[u8]>
) -> Result<(), ErrorStack>

Derives keying material for application use in accordance to RFC 5705.

This corresponds to SSL_export_keying_material.

pub fn export_keying_material_early(
    &self,
    out: &mut [u8],
    label: &str,
    context: &[u8]
) -> Result<(), ErrorStack>

Derives keying material for application use in accordance to RFC 5705.

This function is only usable with TLSv1.3, wherein there is no distinction between an empty context and no context. Therefore, unlike export_keying_material, context must always be supplied.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_export_keying_material_early.

pub unsafe fn set_session(
    &mut self,
    session: &SslSessionRef
) -> Result<(), ErrorStack>

Sets the session to be used.

This should be called before the handshake to attempt to reuse a previously established session. If the server is not willing to reuse the session, a new one will be transparently negotiated.

This corresponds to SSL_set_session.

Safety

The caller of this method is responsible for ensuring that the session is associated with the same SslContext as this Ssl.

pub fn session_reused(&self) -> bool

Determines if the session provided to set_session was successfully reused.

This corresponds to SSL_session_reused.

pub fn set_status_type(&mut self, type_: StatusType) -> Result<(), ErrorStack>

Sets the status response a client wishes the server to reply with.

This corresponds to SSL_set_tlsext_status_type.

pub fn ocsp_status(&self) -> Option<&[u8]>

Returns the server’s OCSP response, if present.

This corresponds to SSL_get_tlsext_status_ocsp_resp.

pub fn set_ocsp_status(&mut self, response: &[u8]) -> Result<(), ErrorStack>

Sets the OCSP response to be returned to the client.

This corresponds to SSL_set_tlsext_status_ocsp_resp.

pub fn is_server(&self) -> bool

Determines if this Ssl is configured for server-side or client-side use.

This corresponds to SSL_is_server.

pub fn set_ex_data<T>(&mut self, index: Index<Ssl, T>, data: T)

Sets the extra data at the specified index.

This can be used to provide data to callbacks registered with the context. Use the Ssl::new_ex_index method to create an Index.

This corresponds to SSL_set_ex_data.

pub fn ex_data<T>(&self, index: Index<Ssl, T>) -> Option<&T>

Returns a reference to the extra data at the specified index.

This corresponds to SSL_get_ex_data.

pub fn ex_data_mut<T>(&mut self, index: Index<Ssl, T>) -> Option<&mut T>

Returns a mutable reference to the extra data at the specified index.

This corresponds to SSL_get_ex_data.

pub fn set_max_early_data(&mut self, bytes: u32) -> Result<(), ErrorStack>

Sets the maximum amount of early data that will be accepted on this connection.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_set_max_early_data.

pub fn max_early_data(&self) -> u32

Gets the maximum amount of early data that can be sent on this connection.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_get_max_early_data.

pub fn finished(&self, buf: &mut [u8]) -> usize

Copies the contents of the last Finished message sent to the peer into the provided buffer.

The total size of the message is returned, so this can be used to determine the size of the buffer required.

This corresponds to SSL_get_finished.

pub fn peer_finished(&self, buf: &mut [u8]) -> usize

Copies the contents of the last Finished message received from the peer into the provided buffer.

The total size of the message is returned, so this can be used to determine the size of the buffer required.

This corresponds to SSL_get_peer_finished.

pub fn is_init_finished(&self) -> bool

Determines if the initial handshake has been completed.

This corresponds to SSL_is_init_finished.

pub fn client_hello_isv2(&self) -> bool

Determines if the client’s hello message is in the SSLv2 format.

This can only be used inside of the client hello callback. Otherwise, false is returned.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_client_hello_isv2.

pub fn client_hello_legacy_version(&self) -> Option<SslVersion>

Returns the legacy version field of the client’s hello message.

This can only be used inside of the client hello callback. Otherwise, None is returned.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_client_hello_get0_legacy_version.

pub fn client_hello_random(&self) -> Option<&[u8]>

Returns the random field of the client’s hello message.

This can only be used inside of the client hello callback. Otherwise, None is returend.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_client_hello_get0_random.

pub fn client_hello_session_id(&self) -> Option<&[u8]>

Returns the session ID field of the client’s hello message.

This can only be used inside of the client hello callback. Otherwise, None is returend.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_client_hello_get0_session_id.

pub fn client_hello_ciphers(&self) -> Option<&[u8]>

Returns the ciphers field of the client’s hello message.

This can only be used inside of the client hello callback. Otherwise, None is returend.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_client_hello_get0_ciphers.

pub fn client_hello_compression_methods(&self) -> Option<&[u8]>

Returns the compression methods field of the client’s hello message.

This can only be used inside of the client hello callback. Otherwise, None is returend.

Requires OpenSSL 1.1.1 or newer.

This corresponds to SSL_client_hello_get0_compression_methods.

pub fn set_mtu(&mut self, mtu: u32) -> Result<(), ErrorStack>

Sets the MTU used for DTLS connections.

This corresponds to SSL_set_mtu.

Trait Implementations

impl Deref for ConnectConfiguration

type Target = SslRef

The resulting type after dereferencing.

fn deref(&self) -> &SslRef

Dereferences the value.

impl DerefMut for ConnectConfiguration

fn deref_mut(&mut self) -> &mut SslRef

Mutably dereferences the value.