Commit c3d6934f authored by Philip Withnall's avatar Philip Withnall

gio: Add DTLS interfaces

Add a new GDtlsConnection interface, plus derived GDtlsClientConnection
and GDtlsServerConnection interfaces, for implementing Datagram TLS
support in glib-networking.

A GDtlsConnection is a GDatagramBased, so may be used as a normal
datagram socket, wrapping all datagrams from a base GDatagramBased in
DTLS segments.

Test cases are included in the implementation in glib-networking.

https://bugzilla.gnome.org/show_bug.cgi?id=752240
parent e3ab6ab3
......@@ -152,6 +152,9 @@
<xi:include href="xml/gtlsconnection.xml"/>
<xi:include href="xml/gtlsclientconnection.xml"/>
<xi:include href="xml/gtlsserverconnection.xml"/>
<xi:include href="xml/gdtlsconnection.xml"/>
<xi:include href="xml/gdtlsclientconnection.xml"/>
<xi:include href="xml/gdtlsserverconnection.xml"/>
<xi:include href="xml/gtlsbackend.xml"/>
<xi:include href="xml/gtlsdatabase.xml"/>
<xi:include href="xml/gtlsfiledatabase.xml"/>
......
......@@ -3578,10 +3578,13 @@ GTlsBackend
GTlsBackendInterface
g_tls_backend_get_default
g_tls_backend_supports_tls
g_tls_backend_supports_dtls
g_tls_backend_get_default_database
g_tls_backend_get_certificate_type
g_tls_backend_get_client_connection_type
g_tls_backend_get_server_connection_type
g_tls_backend_get_dtls_client_connection_type
g_tls_backend_get_dtls_server_connection_type
g_tls_backend_get_file_database_type
<SUBSECTION Standard>
G_IS_TLS_BACKEND
......@@ -3807,6 +3810,84 @@ g_tls_interaction_get_type
g_tls_interaction_result_get_type
</SECTION>
<SECTION>
<FILE>gdtlsconnection</FILE>
<TITLE>GDtlsConnection</TITLE>
GDtlsConnection
g_dtls_connection_set_certificate
g_dtls_connection_get_certificate
g_dtls_connection_get_peer_certificate
g_dtls_connection_get_peer_certificate_errors
g_dtls_connection_set_require_close_notify
g_dtls_connection_get_require_close_notify
g_dtls_connection_set_rehandshake_mode
g_dtls_connection_get_rehandshake_mode
g_dtls_connection_get_database
g_dtls_connection_set_database
g_dtls_connection_get_interaction
g_dtls_connection_set_interaction
<SUBSECTION>
g_dtls_connection_handshake
g_dtls_connection_handshake_async
g_dtls_connection_handshake_finish
<SUBSECTION>
g_dtls_connection_shutdown
g_dtls_connection_shutdown_async
g_dtls_connection_shutdown_finish
g_dtls_connection_close
g_dtls_connection_close_async
g_dtls_connection_close_finish
<SUBSECTION>
g_dtls_connection_emit_accept_certificate
<SUBSECTION Standard>
GDtlsConnectionClass
GDtlsConnectionPrivate
G_IS_DTLS_CONNECTION
G_IS_DTLS_CONNECTION_CLASS
G_DTLS_CONNECTION
G_DTLS_CONNECTION_CLASS
G_DTLS_CONNECTION_GET_CLASS
G_TYPE_DTLS_CONNECTION
G_DTLS_CONNECTION_GET_INTERFACE
<SUBSECTION Private>
g_dtls_connection_get_type
</SECTION>
<SECTION>
<FILE>gdtlsclientconnection</FILE>
<TITLE>GDtlsClientConnection</TITLE>
GDtlsClientConnection
GDtlsClientConnectionInterface
g_dtls_client_connection_new
g_dtls_client_connection_set_server_identity
g_dtls_client_connection_get_server_identity
g_dtls_client_connection_set_validation_flags
g_dtls_client_connection_get_validation_flags
g_dtls_client_connection_get_accepted_cas
<SUBSECTION Standard>
G_IS_DTLS_CLIENT_CONNECTION
G_DTLS_CLIENT_CONNECTION
G_DTLS_CLIENT_CONNECTION_GET_INTERFACE
G_TYPE_DTLS_CLIENT_CONNECTION
<SUBSECTION Private>
g_dtls_client_connection_get_type
</SECTION>
<SECTION>
<FILE>gdtlsserverconnection</FILE>
<TITLE>GDtlsServerConnection</TITLE>
GDtlsServerConnection
GDtlsServerConnectionInterface
g_dtls_server_connection_new
<SUBSECTION Standard>
G_IS_DTLS_SERVER_CONNECTION
G_DTLS_SERVER_CONNECTION
G_DTLS_SERVER_CONNECTION_GET_INTERFACE
G_TYPE_DTLS_SERVER_CONNECTION
<SUBSECTION Private>
g_dtls_server_connection_get_type
</SECTION>
<SECTION>
<FILE>gdbusinterface</FILE>
<TITLE>GDBusInterface</TITLE>
......
......@@ -45,6 +45,9 @@ g_dbus_signal_info_get_type
g_desktop_app_info_get_type
g_desktop_app_info_lookup_get_type
g_drive_get_type
g_dtls_client_connection_get_type
g_dtls_connection_get_type
g_dtls_server_connection_get_type
g_emblem_get_type
g_emblemed_icon_get_type
g_file_attribute_info_list_get_type
......
......@@ -468,6 +468,9 @@ libgio_2_0_la_SOURCES = \
gtlsinteraction.c \
gtlspassword.c \
gtlsserverconnection.c \
gdtlsconnection.c \
gdtlsclientconnection.c \
gdtlsserverconnection.c \
gunionvolumemonitor.c \
gunionvolumemonitor.h \
gvfs.c \
......@@ -632,6 +635,9 @@ gio_headers = \
gtlsinteraction.h \
gtlspassword.h \
gtlsserverconnection.h \
gdtlsconnection.h \
gdtlsclientconnection.h \
gdtlsserverconnection.h \
gvfs.h \
gvolume.h \
gvolumemonitor.h \
......
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright © 2010 Red Hat, Inc
* Copyright © 2015 Collabora, Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "glib.h"
#include "gdtlsclientconnection.h"
#include "ginitable.h"
#include "gioenumtypes.h"
#include "gsocket.h"
#include "gsocketconnectable.h"
#include "gtlsbackend.h"
#include "gtlscertificate.h"
#include "glibintl.h"
/**
* SECTION:gdtlsclientconnection
* @short_description: DTLS client-side connection
* @include: gio/gio.h
*
* #GDtlsClientConnection is the client-side subclass of
* #GDtlsConnection, representing a client-side DTLS connection.
*
* Since: 2.48
*/
/**
* GDtlsClientConnection:
*
* Abstract base class for the backend-specific client connection
* type.
*
* Since: 2.48
*/
G_DEFINE_INTERFACE (GDtlsClientConnection, g_dtls_client_connection,
G_TYPE_DTLS_CONNECTION)
static void
g_dtls_client_connection_default_init (GDtlsClientConnectionInterface *iface)
{
/**
* GDtlsClientConnection:validation-flags:
*
* What steps to perform when validating a certificate received from
* a server. Server certificates that fail to validate in all of the
* ways indicated here will be rejected unless the application
* overrides the default via #GDtlsConnection::accept-certificate.
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_flags ("validation-flags",
P_("Validation flags"),
P_("What certificate validation to perform"),
G_TYPE_TLS_CERTIFICATE_FLAGS,
G_TLS_CERTIFICATE_VALIDATE_ALL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsClientConnection:server-identity:
*
* 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
* #GDtlsClientConnection:validation-flags, this object will be used
* to determine the expected identify of the remote end of the
* connection; if #GDtlsClientConnection: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.
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_object ("server-identity",
P_("Server identity"),
P_("GSocketConnectable identifying the server"),
G_TYPE_SOCKET_CONNECTABLE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsClientConnection:accepted-cas: (type GLib.List) (element-type GLib.ByteArray)
*
* 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.
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_pointer ("accepted-cas",
P_("Accepted CAs"),
P_("Distinguished names of the CAs the server accepts certificates from"),
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
}
/**
* g_dtls_client_connection_new:
* @base_socket: the #GDatagramBased to wrap
* @server_identity: (allow-none): the expected identity of the server
* @error: #GError for error reporting, or %NULL to ignore.
*
* Creates a new #GDtlsClientConnection wrapping @base_socket which is
* assumed to communicate with the server identified by @server_identity.
*
* Returns: (transfer full) (type GDtlsClientConnection): the new
* #GDtlsClientConnection, or %NULL on error
*
* Since: 2.48
*/
GDatagramBased *
g_dtls_client_connection_new (GDatagramBased *base_socket,
GSocketConnectable *server_identity,
GError **error)
{
GObject *conn;
GTlsBackend *backend;
backend = g_tls_backend_get_default ();
conn = g_initable_new (g_tls_backend_get_dtls_client_connection_type (backend),
NULL, error,
"base-socket", base_socket,
"server-identity", server_identity,
NULL);
return G_DATAGRAM_BASED (conn);
}
/**
* g_dtls_client_connection_get_validation_flags:
* @conn: the #GDtlsClientConnection
*
* Gets @conn's validation flags
*
* Returns: the validation flags
*
* Since: 2.48
*/
GTlsCertificateFlags
g_dtls_client_connection_get_validation_flags (GDtlsClientConnection *conn)
{
GTlsCertificateFlags flags = 0;
g_return_val_if_fail (G_IS_DTLS_CLIENT_CONNECTION (conn), 0);
g_object_get (G_OBJECT (conn), "validation-flags", &flags, NULL);
return flags;
}
/**
* g_dtls_client_connection_set_validation_flags:
* @conn: the #GDtlsClientConnection
* @flags: the #GTlsCertificateFlags to use
*
* 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.
*
* Since: 2.48
*/
void
g_dtls_client_connection_set_validation_flags (GDtlsClientConnection *conn,
GTlsCertificateFlags flags)
{
g_return_if_fail (G_IS_DTLS_CLIENT_CONNECTION (conn));
g_object_set (G_OBJECT (conn), "validation-flags", flags, NULL);
}
/**
* g_dtls_client_connection_get_server_identity:
* @conn: the #GDtlsClientConnection
*
* Gets @conn's expected server identity
*
* Returns: (transfer none): a #GSocketConnectable describing the
* expected server identity, or %NULL if the expected identity is not
* known.
*
* Since: 2.48
*/
GSocketConnectable *
g_dtls_client_connection_get_server_identity (GDtlsClientConnection *conn)
{
GSocketConnectable *identity = NULL;
g_return_val_if_fail (G_IS_DTLS_CLIENT_CONNECTION (conn), 0);
g_object_get (G_OBJECT (conn), "server-identity", &identity, NULL);
if (identity)
g_object_unref (identity);
return identity;
}
/**
* g_dtls_client_connection_set_server_identity:
* @conn: the #GDtlsClientConnection
* @identity: a #GSocketConnectable describing the expected server 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.
*
* Since: 2.48
*/
void
g_dtls_client_connection_set_server_identity (GDtlsClientConnection *conn,
GSocketConnectable *identity)
{
g_return_if_fail (G_IS_DTLS_CLIENT_CONNECTION (conn));
g_object_set (G_OBJECT (conn), "server-identity", identity, NULL);
}
/**
* g_dtls_client_connection_get_accepted_cas:
* @conn: the #GDtlsClientConnection
*
* 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.
*
* Returns: (element-type GByteArray) (transfer full): 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().
*
* Since: 2.48
*/
GList *
g_dtls_client_connection_get_accepted_cas (GDtlsClientConnection *conn)
{
GList *accepted_cas = NULL;
g_return_val_if_fail (G_IS_DTLS_CLIENT_CONNECTION (conn), NULL);
g_object_get (G_OBJECT (conn), "accepted-cas", &accepted_cas, NULL);
return accepted_cas;
}
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright © 2010 Red Hat, Inc.
* Copyright © 2015 Collabora, Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __G_DTLS_CLIENT_CONNECTION_H__
#define __G_DTLS_CLIENT_CONNECTION_H__
#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
#error "Only <gio/gio.h> can be included directly."
#endif
#include <gio/gdtlsconnection.h>
G_BEGIN_DECLS
#define G_TYPE_DTLS_CLIENT_CONNECTION (g_dtls_client_connection_get_type ())
#define G_DTLS_CLIENT_CONNECTION(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), G_TYPE_DTLS_CLIENT_CONNECTION, GDtlsClientConnection))
#define G_IS_DTLS_CLIENT_CONNECTION(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), G_TYPE_DTLS_CLIENT_CONNECTION))
#define G_DTLS_CLIENT_CONNECTION_GET_INTERFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), G_TYPE_DTLS_CLIENT_CONNECTION, GDtlsClientConnectionInterface))
typedef struct _GDtlsClientConnectionInterface GDtlsClientConnectionInterface;
/**
* GDtlsClientConnectionInterface:
* @g_iface: The parent interface.
*
* vtable for a #GDtlsClientConnection implementation.
*
* Since: 2.48
*/
struct _GDtlsClientConnectionInterface
{
GTypeInterface g_iface;
};
GLIB_AVAILABLE_IN_2_48
GType g_dtls_client_connection_get_type (void) G_GNUC_CONST;
GLIB_AVAILABLE_IN_2_48
GDatagramBased *g_dtls_client_connection_new (GDatagramBased *base_socket,
GSocketConnectable *server_identity,
GError **error);
GLIB_AVAILABLE_IN_2_48
GTlsCertificateFlags g_dtls_client_connection_get_validation_flags (GDtlsClientConnection *conn);
GLIB_AVAILABLE_IN_2_48
void g_dtls_client_connection_set_validation_flags (GDtlsClientConnection *conn,
GTlsCertificateFlags flags);
GLIB_AVAILABLE_IN_2_48
GSocketConnectable *g_dtls_client_connection_get_server_identity (GDtlsClientConnection *conn);
GLIB_AVAILABLE_IN_2_48
void g_dtls_client_connection_set_server_identity (GDtlsClientConnection *conn,
GSocketConnectable *identity);
GLIB_AVAILABLE_IN_2_48
GList * g_dtls_client_connection_get_accepted_cas (GDtlsClientConnection *conn);
G_END_DECLS
#endif /* __G_DTLS_CLIENT_CONNECTION_H__ */
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright © 2010 Red Hat, Inc
* Copyright © 2015 Collabora, Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "glib.h"
#include "gdtlsconnection.h"
#include "gcancellable.h"
#include "gioenumtypes.h"
#include "gsocket.h"
#include "gtlsbackend.h"
#include "gtlscertificate.h"
#include "gdtlsclientconnection.h"
#include "gtlsdatabase.h"
#include "gtlsinteraction.h"
#include "glibintl.h"
/**
* SECTION:gdtlsconnection
* @short_description: DTLS connection type
* @include: gio/gio.h
*
* #GDtlsConnection is the base DTLS connection class type, which wraps
* a #GDatagramBased and provides DTLS encryption on top of it. Its
* subclasses, #GDtlsClientConnection and #GDtlsServerConnection,
* implement client-side and server-side DTLS, respectively.
*
* For TLS support, see #GTlsConnection.
*
* As DTLS is datagram based, #GDtlsConnection implements #GDatagramBased,
* presenting a datagram-socket-like API for the encrypted connection. This
* operates over a base datagram connection, which is also a #GDatagramBased
* (#GDtlsConnection:base-socket).
*
* To close a DTLS connection, use g_dtls_connection_close().
*
* Neither #GDtlsServerConnection or #GDtlsClientConnection set the peer address
* on their base #GDatagramBased if it is a #GSocket — it is up to the caller to
* do that if they wish. If they do not, and g_socket_close() is called on the
* base socket, the #GDtlsConnection will not raise a %G_IO_ERROR_NOT_CONNECTED
* error on further I/O.
*
* Since: 2.48
*/
/**
* GDtlsConnection:
*
* Abstract base class for the backend-specific #GDtlsClientConnection
* and #GDtlsServerConnection types.
*
* Since: 2.48
*/
G_DEFINE_INTERFACE (GDtlsConnection, g_dtls_connection, G_TYPE_DATAGRAM_BASED);
enum {
ACCEPT_CERTIFICATE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
enum {
PROP_BASE_SOCKET = 1,
PROP_REQUIRE_CLOSE_NOTIFY,
PROP_REHANDSHAKE_MODE,
PROP_DATABASE,
PROP_INTERACTION,
PROP_CERTIFICATE,
PROP_PEER_CERTIFICATE,
PROP_PEER_CERTIFICATE_ERRORS,
};
static void
g_dtls_connection_default_init (GDtlsConnectionInterface *iface)
{
/**
* GDtlsConnection:base-socket:
*
* The #GDatagramBased that the connection wraps. Note that this may be any
* implementation of #GDatagramBased, not just a #GSocket.
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_object ("base-socket",
P_("Base Socket"),
P_("The GDatagramBased that the connection wraps"),
G_TYPE_DATAGRAM_BASED,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection: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 g_dtls_backend_get_default_database().
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_object ("database",
P_("Database"),
P_("Certificate database to use for looking up or verifying certificates"),
G_TYPE_TLS_DATABASE,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection:interaction:
*
* A #GTlsInteraction 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.
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_object ("interaction",
P_("Interaction"),
P_("Optional object for user interaction"),
G_TYPE_TLS_INTERACTION,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection:require-close-notify:
*
* Whether or not proper TLS close notification is required.
* See g_dtls_connection_set_require_close_notify().
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_boolean ("require-close-notify",
P_("Require close notify"),
P_("Whether to require proper TLS close notification"),
TRUE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection:rehandshake-mode:
*
* The rehandshaking mode. See
* g_dtls_connection_set_rehandshake_mode().
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_enum ("rehandshake-mode",
P_("Rehandshake mode"),
P_("When to allow rehandshaking"),
G_TYPE_TLS_REHANDSHAKE_MODE,
G_TLS_REHANDSHAKE_NEVER,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection:certificate:
*
* The connection's certificate; see
* g_dtls_connection_set_certificate().
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_object ("certificate",
P_("Certificate"),
P_("The connection's certificate"),
G_TYPE_TLS_CERTIFICATE,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection:peer-certificate:
*
* The connection's peer's certificate, after the TLS handshake has
* completed and the certificate has been accepted. Note in
* particular that this is not yet set during the emission of
* #GDtlsConnection::accept-certificate.
*
* (You can watch for a #GObject::notify signal on this property to
* detect when a handshake has occurred.)
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_object ("peer-certificate",
P_("Peer Certificate"),
P_("The connection's peer's certificate"),
G_TYPE_TLS_CERTIFICATE,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection:peer-certificate-errors:
*
* The errors noticed-and-ignored while verifying
* #GDtlsConnection:peer-certificate. Normally this should be 0, but
* it may not be if #GDtlsClientConnection:validation-flags is not
* %G_TLS_CERTIFICATE_VALIDATE_ALL, or if
* #GDtlsConnection::accept-certificate overrode the default
* behavior.
*
* Since: 2.48
*/
g_object_interface_install_property (iface,
g_param_spec_flags ("peer-certificate-errors",
P_("Peer Certificate Errors"),
P_("Errors found with the peer's certificate"),
G_TYPE_TLS_CERTIFICATE_FLAGS,
0,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
/**
* GDtlsConnection::accept-certificate:
* @conn: a #GDtlsConnection
* @peer_cert: the peer's #GTlsCertificate
* @errors: the problems with @peer_cert.
*
* Emitted during the TLS handshake after the peer certificate has
* been received. You can examine @peer_cert's certification path by
* calling g_tls_certificate_get_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
* #GDtlsClientConnection: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 %G_TLS_ERROR_BAD_CERTIFICATE.
*
* For a server-side connection, @peer_cert is the certificate
* presented by the client, if this was requested via the server's
* #GDtlsServerConnection: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
* %G_TLS_ERROR_HANDSHAKE, 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