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webrtcsdp: Remove comparison between media and session fingerprint

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The code seems to validate that the media-level fingerprint matches
the fingerprint of the previous media or of the whole session. There
is no such requirement in any RFC I found. The session-session one
is just meant to act as a fallback when there is no media-level
fingerprint.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5663>
This commit is contained in:
Olivier Crête 2021-10-12 11:29:21 -04:00 committed by Tim-Philipp Müller
parent dc1dc56c2d
commit 2112c3c6b8
1 changed files with 2 additions and 14 deletions
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16
subprojects/gst-plugins-bad/ext/webrtc/webrtcsdp.c
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@ -101,7 +101,7 @@ static gboolean
_check_sdp_crypto (SDPSource source, GstWebRTCSessionDescription * sdp,
GError ** error)
{
const gchar *message_fingerprint, *fingerprint;
const gchar *message_fingerprint;
const GstSDPKey *key;
int i;
@ -112,7 +112,7 @@ _check_sdp_crypto (SDPSource source, GstWebRTCSessionDescription * sdp,
return FALSE;
}
message_fingerprint = fingerprint =
message_fingerprint =
gst_sdp_message_get_attribute_val (sdp->sdp, "fingerprint");
for (i = 0; i < gst_sdp_message_medias_len (sdp->sdp); i++) {
const GstSDPMedia *media = gst_sdp_message_get_media (sdp->sdp, i);
@ -126,18 +126,6 @@ _check_sdp_crypto (SDPSource source, GstWebRTCSessionDescription * sdp,
"No fingerprint lines in sdp for media %u", i);
return FALSE;
}
if (IS_EMPTY_SDP_ATTRIBUTE (fingerprint)) {
fingerprint = media_fingerprint;
}
if (!IS_EMPTY_SDP_ATTRIBUTE (media_fingerprint)
&& g_strcmp0 (fingerprint, media_fingerprint) != 0) {
g_set_error (error, GST_WEBRTC_ERROR,
GST_WEBRTC_ERROR_FINGERPRINT_FAILURE,
"Fingerprint in media %u differs from %s fingerprint. "
"\'%s\' != \'%s\'", i, message_fingerprint ? "global" : "previous",
fingerprint, media_fingerprint);
return FALSE;
}
}
return TRUE;