jaflong jaflong wrote:
Hi
I am having problems using DTLS-SRTP and trying to debug why I am getting this
error
[Mar 26 14:48:23] WARNING[31977][C-00000009]: chan_sip.c:10657 process_sdp:
Can't provide secure audio requested in SDP offer
In chan_sip.c
Tracing through the code, at this point the value of p->dtls_cfg.enabled is
FALSE when run.
Any tip on how to get p->dtls_cfg.enabled set to TRUE. It seems DTLS config is
not getting initiated
Have you enabled it in the configuration? It's controlled using dtlsenable.
static int process_sdp_a_dtls(const char *a, struct sip_pvt *p, struct
ast_rtp_instance *instance)
{
struct ast_rtp_engine_dtls *dtls;
int found = FALSE;
char value[256], hash[6];
if (!instance || !p->dtls_cfg.enabled || !(dtls =
ast_rtp_instance_get_dtls(instance))) {
return found;
}
By the way what is the minimum version required of openssl to use DTLS-SRTP.
At present I have 1.01e-fips (cento 6.5)
DTLS-SRTP suppor was added to OpenSSL in version 1.0.1, so it should be
fine.
Asterisk also does not support SHA-256 currently without using the patch
available at https://issues.asterisk.org/jira/browse/ASTERISK-22961
--
Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org
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