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srtpenc: Set the SRTP key as a shared key for all SSRCs
This is already how it was used.
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parent
a73a42b10f
commit
5a38ae5a83
2 changed files with 15 additions and 34 deletions
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@ -319,8 +319,6 @@ gst_srtp_enc_init (GstSrtpEnc * filter)
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filter->rtp_auth = DEFAULT_RTP_AUTH;
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filter->rtcp_cipher = DEFAULT_RTCP_CIPHER;
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filter->rtcp_auth = DEFAULT_RTCP_AUTH;
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filter->ssrcs_set = g_hash_table_new (g_direct_hash, g_direct_equal);
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}
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static guint
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@ -336,8 +334,8 @@ max_cipher_key_size (GstSrtpEnc * filter)
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/* Create stream
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*/
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static gboolean
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check_new_stream_locked (GstSrtpEnc * filter, guint32 ssrc)
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static err_status_t
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gst_srtp_enc_create_session (GstSrtpEnc * filter)
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{
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err_status_t ret;
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srtp_policy_t policy;
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@ -346,10 +344,6 @@ check_new_stream_locked (GstSrtpEnc * filter, guint32 ssrc)
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memset (&policy, 0, sizeof (srtp_policy_t));
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/* check if we already have that stream */
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if (g_hash_table_lookup (filter->ssrcs_set, GUINT_TO_POINTER (ssrc)))
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return TRUE;
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GST_OBJECT_LOCK (filter);
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if (HAS_CRYPTO (filter)) {
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@ -391,29 +385,22 @@ check_new_stream_locked (GstSrtpEnc * filter, guint32 ssrc)
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policy.key = tmp;
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}
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policy.ssrc.value = ssrc;
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policy.ssrc.type = ssrc_specific;
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policy.ssrc.value = 0;
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policy.ssrc.type = ssrc_any_outbound;
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policy.next = NULL;
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/* If it is the first stream, create the session
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* If not, add the stream to the session
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*/
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if (filter->first_session)
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ret = srtp_create (&filter->session, &policy);
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else
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ret = srtp_add_stream (filter->session, &policy);
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ret = srtp_create (&filter->session, &policy);
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filter->first_session = FALSE;
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if (HAS_CRYPTO (filter))
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gst_buffer_unmap (filter->key, &map);
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g_hash_table_insert (filter->ssrcs_set, GUINT_TO_POINTER (ssrc),
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GUINT_TO_POINTER (1));
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GST_OBJECT_UNLOCK (filter);
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return ret == err_status_ok;
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return ret;
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}
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/* Release ressources and set default values
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@ -429,8 +416,6 @@ gst_srtp_enc_reset (GstSrtpEnc * filter)
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filter->first_session = TRUE;
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filter->key_changed = FALSE;
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g_hash_table_remove_all (filter->ssrcs_set);
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GST_OBJECT_UNLOCK (filter);
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}
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@ -576,10 +561,6 @@ gst_srtp_enc_dispose (GObject * object)
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gst_buffer_unref (filter->key);
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filter->key = NULL;
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if (filter->ssrcs_set)
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g_hash_table_unref (filter->ssrcs_set);
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filter->ssrcs_set = NULL;
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G_OBJECT_CLASS (gst_srtp_enc_parent_class)->dispose (object);
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}
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@ -956,13 +937,15 @@ gst_srtp_enc_chain (GstPad * pad, GstObject * parent, GstBuffer * buf,
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do_setcaps = filter->key_changed;
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if (filter->key_changed)
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gst_srtp_enc_reset (filter);
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if (!check_new_stream_locked (filter, ssrc)) {
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GST_ELEMENT_ERROR (filter, LIBRARY, INIT,
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("Could not initialize SRTP encoder"),
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("Failed to add stream to SRTP encoder"));
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ret = GST_FLOW_ERROR;
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goto out;
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if (filter->first_session) {
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err_status_t status = gst_srtp_enc_create_session (filter);
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if (status != err_status_ok) {
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GST_ELEMENT_ERROR (filter, LIBRARY, INIT,
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("Could not initialize SRTP encoder"),
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("Failed to add stream to SRTP encoder (err: %d)", status));
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ret = GST_FLOW_ERROR;
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goto out;
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}
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}
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priv->ssrc = ssrc;
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@ -85,8 +85,6 @@ struct _GstSrtpEnc
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gboolean hard_limit_reached;
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gboolean soft_limit_reached;
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GHashTable *ssrcs_set;
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GType key_type;
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};
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