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srtpdec: Don't crash on invalid cipher

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This commit is contained in:
Olivier Crête 2013-04-09 21:31:24 -04:00
parent 329c250a41
commit 4b89870a58
2 changed files with 12 additions and 1 deletions
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6
ext/srtp/gstsrtp.c
View file

@ -96,6 +96,8 @@ enum_nick_from_value (GType enum_gtype, gint value)
return NULL;
enum_value = g_enum_get_value (enum_class, value);
if (!enum_value)
return NULL;
nick = enum_value->value_nick;
g_type_class_unref (enum_class);
@ -111,9 +113,11 @@ enum_value_from_nick (GType enum_gtype, const gchar * nick)
gint value;
if (!enum_gtype)
return 0;
return -1;
enum_value = g_enum_get_value_by_nick (enum_class, nick);
if (!enum_value)
return -1;
value = enum_value->value;
g_type_class_unref (enum_class);

7
ext/srtp/gstsrtpdec.c
View file

@ -410,6 +410,13 @@ get_stream_from_caps (GstSrtpDec * filter, GstCaps * caps, guint32 ssrc)
rtcp_cipher);
stream->rtcp_auth = enum_value_from_nick (GST_TYPE_SRTP_AUTH_TYPE, rtcp_auth);
if (stream->rtp_cipher == -1 || stream->rtp_auth == -1 ||
stream->rtcp_cipher == -1 || stream->rtcp_auth == -1) {
GST_WARNING_OBJECT (filter, "Invalid caps for stream,"
" unknown cipher or auth type");
goto error;
}
if (stream->rtcp_cipher != NULL_CIPHER && stream->rtcp_auth == NULL_AUTH) {
GST_WARNING_OBJECT (filter,
"Cannot have SRTP NULL authentication with a not-NULL encryption"