res_pjsip: set Accept-Encoding to identity in OPTIONS response

RFC 3261 says that the Accept-Encoding header should be present
in an options response. Permitted values according to RFC 2616
are only compression algorithms like gzip or the default identity
encoding. Therefore "text/plain" is not a correct value here.
As long as the header is hard coded, it should be set to "identity".

Without this fix an Alcatel OmniPCX periodically logs warnings like
"[sip_acceptIncorrectHeader] Header Accept-Encoding is malformed"
on a SIP Trunk.

ASTERISK-29165 #close

Change-Id: I0aa2211ebf0b4c2ed554ac7cda794523803a3840
This commit is contained in:
Alexander Greiner-Baer 2020-11-17 21:19:35 +01:00 committed by Kevin Harwell
parent 103d7da3bb
commit fba10fb54c
2 changed files with 2 additions and 2 deletions

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@ -94,7 +94,7 @@
*/
#define DEFAULT_LANGUAGE "en"
#define DEFAULT_ENCODING "text/plain"
#define DEFAULT_ENCODING "identity"
/*! \brief These are the number of buckets to store AORs in */
#ifdef LOW_MEMORY

View File

@ -34,7 +34,7 @@
#include "asterisk/res_pjsip_session.h"
#define DEFAULT_LANGUAGE "en"
#define DEFAULT_ENCODING "text/plain"
#define DEFAULT_ENCODING "identity"
static int options_incoming_request(struct ast_sip_session *session, pjsip_rx_data *rdata)
{