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123 lines
4.6 KiB
C
123 lines
4.6 KiB
C
/*
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* Copyright (c) 2014, Ericsson AB. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*/
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#ifndef gstdtlsconnection_h
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#define gstdtlsconnection_h
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#include <glib-object.h>
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G_BEGIN_DECLS
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#define GST_TYPE_DTLS_CONNECTION (gst_dtls_connection_get_type())
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#define GST_DTLS_CONNECTION(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_DTLS_CONNECTION, GstDtlsConnection))
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#define GST_DTLS_CONNECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_DTLS_CONNECTION, GstDtlsConnectionClass))
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#define GST_IS_DTLS_CONNECTION(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_DTLS_CONNECTION))
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#define GST_IS_DTLS_CONNECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_DTLS_CONNECTION))
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#define GST_DTLS_CONNECTION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_DTLS_CONNECTION, GstDtlsConnectionClass))
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typedef struct _GstDtlsConnection GstDtlsConnection;
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typedef struct _GstDtlsConnectionClass GstDtlsConnectionClass;
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typedef struct _GstDtlsConnectionPrivate GstDtlsConnectionPrivate;
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/**
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* GstDtlsSrtpCipher:
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* @GST_DTLS_SRTP_CIPHER_AES_128_ICM: aes-128-icm
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*
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* SRTP Cipher selected by the DTLS handshake, should match the enums in gstsrtp
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*/
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typedef enum {
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GST_DTLS_SRTP_CIPHER_AES_128_ICM = 1
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} GstDtlsSrtpCipher;
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/**
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* GstDtlsSrtpAuth:
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* @GST_DTLS_SRTP_AUTH_HMAC_SHA1_32: hmac-sha1-32
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* @GST_DTLS_SRTP_AUTH_HMAC_SHA1_80: hmac-sha1-80
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*
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* SRTP Auth selected by the DTLS handshake, should match the enums in gstsrtp
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*/
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typedef enum {
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GST_DTLS_SRTP_AUTH_HMAC_SHA1_32 = 1,
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GST_DTLS_SRTP_AUTH_HMAC_SHA1_80 = 2
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} GstDtlsSrtpAuth;
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#define GST_DTLS_SRTP_MASTER_KEY_LENGTH 30
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/*
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* GstDtlsConnection:
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*
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* A class that handles a single DTLS connection.
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* Any connection needs to be created with the agent property set.
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* Once the DTLS handshake is completed, on-encoder-key and on-decoder-key will be signalled.
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*/
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struct _GstDtlsConnection {
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GObject parent_instance;
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GstDtlsConnectionPrivate *priv;
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};
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struct _GstDtlsConnectionClass {
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GObjectClass parent_class;
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};
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GType gst_dtls_connection_get_type(void) G_GNUC_CONST;
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void gst_dtls_connection_start(GstDtlsConnection *, gboolean is_client);
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void gst_dtls_connection_check_timeout(GstDtlsConnection *);
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/*
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* Stops the connections, it is not required to call this function.
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*/
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void gst_dtls_connection_stop(GstDtlsConnection *);
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/*
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* Closes the connection, the function will block until the connection has been stopped.
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* If stop is called some time before, close will return instantly.
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*/
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void gst_dtls_connection_close(GstDtlsConnection *);
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/*
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* Sets the closure that will be called whenever data needs to be sent.
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*
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* The closure will get called with the following arguments:
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* void cb(GstDtlsConnection *, gpointer data, gint length, gpointer user_data)
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*/
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void gst_dtls_connection_set_send_callback(GstDtlsConnection *, GClosure *);
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/*
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* Processes data that has been received, the transformation is done in-place.
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* Returns the length of the plaintext data that was decoded, if no data is available, 0<= will be returned.
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*/
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gint gst_dtls_connection_process(GstDtlsConnection *, gpointer ptr, gint len);
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/*
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* If the DTLS handshake is completed this function will encode the given data.
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* Returns the length of the data sent, or 0 if the DTLS handshake is not completed.
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*/
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gint gst_dtls_connection_send(GstDtlsConnection *, gpointer ptr, gint len);
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G_END_DECLS
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#endif /* gstdtlsconnection_h */
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