Hello!
As Asterisk doesn't care about destinations used for each request if there is a
DNS SRV set given by the DNS resolution (more than one server in the response) I
would like to shrink the used destinations received from DNS SRV query to one
server (as the SRV list is unchanged since years now regarding German Telekom).
I can do this like in the attached patch - but I didn't find any way so far to
bring in a (new) option of transport configuration e.g. to this callback. Isn't
there any way?
Thanks for any hint.
Michael
--- 1/res/res_pjsip/pjsip_resolver.c 2021-03-11 18:23:06.000000000 +0100
+++ 2/res/res_pjsip/pjsip_resolver.c 2021-04-02 10:32:35.541203000 +0200
@@ -273,6 +273,7 @@ static void sip_resolve_callback(const s
int idx, address_count = 0, have_naptr = 0, have_srv = 0;
unsigned short order = 0;
int strict_order = 0;
+ unsigned short enoughSrvRecords = 0;
ast_debug(2, "[%p] All parallel queries completed\n", resolve);
@@ -347,6 +348,11 @@ static void sip_resolve_callback(const s
/* SRV records just create new queries for AAAA+A, nothing fancy */
ast_debug(2, "[%p] SRV record received on target '%s'\n", resolve, ast_dns_query_get_name(query));
+ if (enoughSrvRecords) {
+ /* we prefer to have only one SRV record */
+ continue;
+ }
+ enoughSrvRecords++;
/* If an explicit IPv6 target transport has been requested look for only AAAA records */
if ((target->transport & PJSIP_TRANSPORT_IPV6) &&
--
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