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res_rtp_asterisk: Correction for the limit which detects that a packet is DTLS.

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First byte of DTLS packet shall be in range 20-63, not 20-64. Refer to RFC
https://tools.ietf.org/html/rfc5764#section-5.1.2 for correct values.

Change-Id: Iae6fa0d72b37c36a27fe40686e0ae6fba3afec31
This commit is contained in:
Yousf Ateya
2015-05-10 14:37:54 +02:00
parent 32eb812b28
commit 2ab5d22c0d
1 changed files with 3 additions and 2 deletions
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5
res/res_rtp_asterisk.c
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@@ -2016,8 +2016,9 @@ static int __rtp_recvfrom(struct ast_rtp_instance *instance, void *buf, size_t s
#ifdef HAVE_OPENSSL_SRTP
dtls_srtp_check_pending(instance, rtp, rtcp);
/* If this is an SSL packet pass it to OpenSSL for processing */
if ((*in >= 20) && (*in <= 64)) {
/* If this is an SSL packet pass it to OpenSSL for processing. RFC section for first byte value:
* https://tools.ietf.org/html/rfc5764#section-5.1.2 */
if ((*in >= 20) && (*in <= 63)) {
struct dtls_details *dtls = !rtcp ? &rtp->dtls : &rtp->rtcp->dtls;
int res = 0;