May be I didn't provide sufficient details, so I'll elaborate.
I'd like Kamailio to 'talk' to only known dispatcher gateways, so in the REQINIT route I do:
route[REQINIT] { # Silently drop requests from unknown gateways, very strict mode if(!ds_is_from_list()) { xlog("L_ALERT","blocking $rm request from unknown gateway, UA=<$ua>, IP=$si:$sp\n"); exit; }
Now, after dispatching a call to some carrier who's gateway address is a FQDN that resolves into multiple IP addresses, when an in-dialog request like BYE or re-Invite from the downstream carriers arrives, ds_is_from_list() returns false and the request gets silently ignored as indicated in the above route block.
Is that the expected behavior of ds_is_from_list() function?
Thanks, --Sergiu
On Wed, Aug 21, 2019 at 6:01 PM Sergiu Pojoga pojogas@gmail.com wrote:
Hi ppl,
The problem I'm facing is that function *ds_is_from_list* seems to return false when a gateway's address is a FQDN that resolves into multiple IP addresses (I'm talking about A records), consequently in-dialog requests like BYE and re-Invites get blocked since they don't pass the *ds_is_from_list* validation.
Am I missing some parameter or something?
Thanks, --Sergiu