Struct gio::TlsConnection

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#[repr(transparent)]
pub struct TlsConnection { /* private fields */ }
Expand description

TlsConnection is the base TLS connection class type, which wraps a IOStream and provides TLS encryption on top of it. Its subclasses, TlsClientConnection and TlsServerConnection, implement client-side and server-side TLS, respectively.

For DTLS (Datagram TLS) support, see GDtlsConnection.

This is an Abstract Base Class, you cannot instantiate it.

Properties

advertised-protocols

The list of application-layer protocols that the connection advertises that it is willing to speak. See TlsConnectionExtManual::set_advertised_protocols().

Readable | Writeable

base-io-stream

The IOStream that the connection wraps. The connection holds a reference to this stream, and may run operations on the stream from other threads throughout its lifetime. Consequently, after the IOStream has been constructed, application code may only run its own operations on this stream when no IOStream operations are running.

Readable | Writeable | Construct Only

certificate

The connection’s certificate; see TlsConnectionExt::set_certificate().

Readable | Writeable

ciphersuite-name

The name of the TLS ciphersuite in use. See TlsConnectionExt::ciphersuite_name().

Readable

database

The certificate database to use when verifying this TLS connection. If no certificate database is set, then the default database will be used. See TlsBackendExt::default_database().

When using a non-default database, TlsConnection must fall back to using the TlsDatabase to perform certificate verification using TlsDatabaseExt::verify_chain(), which means certificate verification will not be able to make use of TLS session context. This may be less secure. For example, if you create your own TlsDatabase that just wraps the default TlsDatabase, you might expect that you have not changed anything, but this is not true because you may have altered the behavior of TlsConnection by causing it to use TlsDatabaseExt::verify_chain(). See the documentation of TlsDatabaseExt::verify_chain() for more details on specific security checks that may not be performed. Accordingly, setting a non-default database is discouraged except for specialty applications with unusual security requirements.

Readable | Writeable

interaction

A TlsInteraction object to be used when the connection or certificate database need to interact with the user. This will be used to prompt the user for passwords where necessary.

Readable | Writeable

negotiated-protocol

The application-layer protocol negotiated during the TLS handshake. See TlsConnectionExt::negotiated_protocol().

Readable

peer-certificate

The connection’s peer’s certificate, after the TLS handshake has completed or failed. Note in particular that this is not yet set during the emission of accept-certificate.

(You can watch for a notify signal on this property to detect when a handshake has occurred.)

Readable

peer-certificate-errors

The errors noticed while verifying peer-certificate. Normally this should be 0, but it may not be if validation-flags is not TlsCertificateFlags::VALIDATE_ALL, or if accept-certificate overrode the default behavior.

GLib guarantees that if certificate verification fails, at least one error will be set, but it does not guarantee that all possible errors will be set. Accordingly, you may not safely decide to ignore any particular type of error. For example, it would be incorrect to mask TlsCertificateFlags::EXPIRED if you want to allow expired certificates, because this could potentially be the only error flag set even if other problems exist with the certificate.

Readable

protocol-version

The TLS protocol version in use. See TlsConnectionExt::protocol_version().

Readable

rehandshake-mode

The rehandshaking mode. See TlsConnectionExt::set_rehandshake_mode().

Readable | Writeable | Construct

require-close-notify

Whether or not proper TLS close notification is required. See TlsConnectionExt::set_require_close_notify().

Readable | Writeable | Construct

use-system-certdb

Whether or not the system certificate database will be used to verify peer certificates. See g_tls_connection_set_use_system_certdb().

Readable | Writeable | Construct

IOStream

closed

Readable

input-stream

Readable

output-stream

Readable

Signals

accept-certificate

Emitted during the TLS handshake after the peer certificate has been received. You can examine peer_cert’s certification path by calling TlsCertificateExt::issuer() on it.

For a client-side connection, peer_cert is the server’s certificate, and the signal will only be emitted if the certificate was not acceptable according to conn’s validation_flags. If you would like the certificate to be accepted despite errors, return true from the signal handler. Otherwise, if no handler accepts the certificate, the handshake will fail with TlsError::BadCertificate.

GLib guarantees that if certificate verification fails, this signal will be emitted with at least one error will be set in errors, but it does not guarantee that all possible errors will be set. Accordingly, you may not safely decide to ignore any particular type of error. For example, it would be incorrect to ignore TlsCertificateFlags::EXPIRED if you want to allow expired certificates, because this could potentially be the only error flag set even if other problems exist with the certificate.

For a server-side connection, peer_cert is the certificate presented by the client, if this was requested via the server’s authentication_mode. On the server side, the signal is always emitted when the client presents a certificate, and the certificate will only be accepted if a handler returns true.

Note that if this signal is emitted as part of asynchronous I/O in the main thread, then you should not attempt to interact with the user before returning from the signal handler. If you want to let the user decide whether or not to accept the certificate, you would have to return false from the signal handler on the first attempt, and then after the connection attempt returns a TlsError::BadCertificate, you can interact with the user, and if the user decides to accept the certificate, remember that fact, create a new connection, and return true from the signal handler the next time.

If you are doing I/O in another thread, you do not need to worry about this, and can simply block in the signal handler until the UI thread returns an answer.

Implements

TlsConnectionExt, IOStreamExt, glib::ObjectExt, TlsConnectionExtManual, IOStreamExtManual

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impl TlsConnection

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pub const NONE: Option<&'static TlsConnection> = None

Trait Implementations§

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impl Clone for TlsConnection

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TlsConnection

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

Formats the value using the given formatter. Read more
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impl Display for TlsConnection

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

Formats the value using the given formatter. Read more
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impl HasParamSpec for TlsConnection

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type ParamSpec = ParamSpecObject

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type SetValue = TlsConnection

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, TlsConnection>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for TlsConnection

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fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for TlsConnection

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for TlsConnection

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impl<OT: ObjectType> PartialEq<OT> for TlsConnection

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fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for TlsConnection

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fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for TlsConnection

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for TlsConnection

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impl IsA<IOStream> for TlsConnection

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impl IsA<TlsConnection> for TlsClientConnection

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impl IsA<TlsConnection> for TlsServerConnection

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Immutably borrows from an owned value. Read more
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unsafe fn from_glib_full_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( ptr: *mut GSList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(ptr: *mut GPtrArray) -> Vec<T, Global>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Returns true if the object is an instance of (can be cast to) T.
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Returns the type of the object.
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fn class(&self) -> &Class<T>where T: IsClass,

Returns the class of the object.
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Sets the property property_name of the object to value value. Read more
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fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more
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fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])

Sets multiple properties of the object at once. Read more
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fn set_properties_from_value(&self, property_values: &[(&str, Value)])

Sets multiple properties of the object at once. Read more
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fn property<V>(&self, property_name: &str) -> Vwhere V: for<'b> FromValue<'b> + 'static,

Gets the property property_name of the object and cast it to the type V. Read more
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Gets the property property_name of the object. Read more
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fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object has a property property_name of the given type_. Read more
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Get the type of the property property_name of this object. Read more
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Get the ParamSpec of the property property_name of this object.
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Return all ParamSpec of the properties of this object.
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more
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unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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Return previously set arbitrary data of this object with the given key. Read more
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Retrieve previously set arbitrary data of this object with the given key. Read more
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Set arbitrary data on this object with the given key. Read more
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Return previously set arbitrary data of this object with the given key. Read more
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Retrieve previously set arbitrary data of this object with the given key. Read more
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fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more
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Unblock a given signal handler.
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Stop emission of the currently emitted signal.
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Stop emission of the currently emitted signal by the (possibly detailed) signal name.
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Connect to the signal signal_id on this object. Read more
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Connect to the signal signal_name on this object. Read more
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Connect to the signal signal_id on this object. Read more
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Connect to the signal signal_name on this object. Read more
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unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more
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Connect a closure to the signal signal_name on this object. Read more
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Connect a closure to the signal signal_id on this object. Read more
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Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.
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Emit signal by its name. Read more
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Emit signal by its name. Read more
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Emit signal by its name with details. Read more
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Emit signal by its name with details. Read more
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Emit signal by signal id with details. Read more
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Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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Add a callback to be notified when the Object is disposed.
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Add a callback to be notified when the Object is disposed. Read more
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fn bind_property<'f, 't, O, 'a>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str ) -> BindingBuilder<'a, 'f, 't>where O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more
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fn ref_count(&self) -> u32

Returns the strong reference count of this object.
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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<T> Property for Twhere T: HasParamSpec,

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type Value = T

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impl<T> PropertyGet for Twhere T: HasParamSpec,

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type Value = T

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fn get<R, F>(&self, f: F) -> Rwhere F: Fn(&<T as PropertyGet>::Value) -> R,

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impl<T> StaticTypeExt for Twhere T: StaticType,

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fn ensure_type()

Ensures that the type has been registered with the type system.
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T> TransparentType for Twhere T: TransparentPtrType,

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T> TryFromClosureReturnValue for Twhere T: for<'a> FromValue<'a> + StaticType + 'static,

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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<Super, Sub> CanDowncast<Sub> for Superwhere Super: IsA<Super>, Sub: IsA<Super>,

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impl<'a, T, C, E> FromValueOptional<'a> for Twhere T: FromValue<'a, Checker = C>, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + 'static,