GDtlsClientConnection

GDtlsClientConnection — DTLS client-side connection

Properties

gpointer accepted-cas Read
GSocketConnectable * server-identity Read / Write / Construct
GTlsCertificateFlags validation-flags Read / Write / Construct

Object Hierarchy

    GInterface
    ╰── GDtlsClientConnection

Prerequisites

GDtlsClientConnection requires GDatagramBased, GDtlsConnection and GObject.

Includes

#include <gio/gio.h>

Description

GDtlsClientConnection is the client-side subclass of GDtlsConnection, representing a client-side DTLS connection.

Functions

g_dtls_client_connection_new ()

GDatagramBased *
g_dtls_client_connection_new (GDatagramBased *base_socket,
                              GSocketConnectable *server_identity,
                              GError **error);

Creates a new GDtlsClientConnection wrapping base_socket which is assumed to communicate with the server identified by server_identity .

Parameters

base_socket

the GDatagramBased to wrap

 

server_identity

the expected identity of the server.

[nullable]

error

GError for error reporting, or NULL to ignore.

 

Returns

the new GDtlsClientConnection, or NULL on error.

[transfer full][type GDtlsClientConnection]

Since: 2.48


g_dtls_client_connection_set_server_identity ()

void
g_dtls_client_connection_set_server_identity
                               (GDtlsClientConnection *conn,
                                GSocketConnectable *identity);

Sets conn 's expected server identity, which is used both to tell servers on virtual hosts which certificate to present, and also to let conn know what name to look for in the certificate when performing G_TLS_CERTIFICATE_BAD_IDENTITY validation, if enabled.

Parameters

conn

the GDtlsClientConnection

 

identity

a GSocketConnectable describing the expected server identity

 

Since: 2.48


g_dtls_client_connection_get_server_identity ()

GSocketConnectable *
g_dtls_client_connection_get_server_identity
                               (GDtlsClientConnection *conn);

Gets conn 's expected server identity

Parameters

conn

the GDtlsClientConnection

 

Returns

a GSocketConnectable describing the expected server identity, or NULL if the expected identity is not known.

[transfer none]

Since: 2.48


g_dtls_client_connection_set_validation_flags ()

void
g_dtls_client_connection_set_validation_flags
                               (GDtlsClientConnection *conn,
                                GTlsCertificateFlags flags);

Sets conn 's validation flags, to override the default set of checks performed when validating a server certificate. By default, G_TLS_CERTIFICATE_VALIDATE_ALL is used.

Parameters

conn

the GDtlsClientConnection

 

flags

the GTlsCertificateFlags to use

 

Since: 2.48


g_dtls_client_connection_get_validation_flags ()

GTlsCertificateFlags
g_dtls_client_connection_get_validation_flags
                               (GDtlsClientConnection *conn);

Gets conn 's validation flags

Parameters

conn

the GDtlsClientConnection

 

Returns

the validation flags

Since: 2.48


g_dtls_client_connection_get_accepted_cas ()

GList *
g_dtls_client_connection_get_accepted_cas
                               (GDtlsClientConnection *conn);

Gets the list of distinguished names of the Certificate Authorities that the server will accept certificates from. This will be set during the TLS handshake if the server requests a certificate. Otherwise, it will be NULL.

Each item in the list is a GByteArray which contains the complete subject DN of the certificate authority.

Parameters

conn

the GDtlsClientConnection

 

Returns

the list of CA DNs. You should unref each element with g_byte_array_unref() and then the free the list with g_list_free().

[element-type GByteArray][transfer full]

Since: 2.48

Types and Values

GDtlsClientConnection

typedef struct _GDtlsClientConnection GDtlsClientConnection;

Abstract base class for the backend-specific client connection type.

Since: 2.48


struct GDtlsClientConnectionInterface

struct GDtlsClientConnectionInterface {
  GTypeInterface g_iface;
};

vtable for a GDtlsClientConnection implementation.

Members

Since: 2.48

Property Details

The “accepted-cas” property

  “accepted-cas”             gpointer

A list of the distinguished names of the Certificate Authorities that the server will accept client certificates signed by. If the server requests a client certificate during the handshake, then this property will be set after the handshake completes.

Each item in the list is a GByteArray which contains the complete subject DN of the certificate authority.

[element-type GLib.ByteArray]

Owner: GDtlsClientConnection

Flags: Read

Since: 2.48


The “server-identity” property

  “server-identity”          GSocketConnectable *

A GSocketConnectable describing the identity of the server that is expected on the other end of the connection.

If the G_TLS_CERTIFICATE_BAD_IDENTITY flag is set in “validation-flags”, this object will be used to determine the expected identify of the remote end of the connection; if “server-identity” is not set, or does not match the identity presented by the server, then the G_TLS_CERTIFICATE_BAD_IDENTITY validation will fail.

In addition to its use in verifying the server certificate, this is also used to give a hint to the server about what certificate we expect, which is useful for servers that serve virtual hosts.

Owner: GDtlsClientConnection

Flags: Read / Write / Construct

Since: 2.48


The “validation-flags” property

  “validation-flags”         GTlsCertificateFlags

What steps to perform when validating a certificate received from a server. Server certificates that fail to validate in any of the ways indicated here will be rejected unless the application overrides the default via “accept-certificate”.

Owner: GDtlsClientConnection

Flags: Read / Write / Construct

Default value: G_TLS_CERTIFICATE_UNKNOWN_CA | G_TLS_CERTIFICATE_BAD_IDENTITY | G_TLS_CERTIFICATE_NOT_ACTIVATED | G_TLS_CERTIFICATE_EXPIRED | G_TLS_CERTIFICATE_REVOKED | G_TLS_CERTIFICATE_INSECURE | G_TLS_CERTIFICATE_GENERIC_ERROR

Since: 2.48