Hello,
On 08/03/15 21:38, canuck15 wrote:
Here is is the relevant section of kamailio.cfg
$var(tempfU) = $fU; #!ifdef WITH_IPAUTH if((!is_method("REGISTER")) && allow_source_address() && $au == "") { # Loading $fU from database using IP
sql_pvquery("elxpbx", "SELECT name FROM sip WHERE host = '$si'AND sippasswd IS NULL", "$var(tempfU)");
# source IP allowed return; }The problem is that when host= somefqdn.com the above will fail since $si will always be an IP address as far as I can tell. More often than not host= is a fqdn and requiring it to always be an IP address is not an option. Converting it to IP before storing it in the DB is also not an option because it needs to be able to work of the IP address changes.
So how can the above be done to accomodate the possibility that host= somefqdn.com or an IP address. Preferably in such a way that it can scale to hundreds/thousands of rows in the database without slowing things down or crashing.
as first remark, note that permissions module can work with hostanmes in the address table.
On the other hand, having what you want might not work. If you want to test if a request comes from xyz.com, doing a dns query on xyz.com can return a different IP than what was used for sending. If xyz.com has many IP addresses associated with and they do load balancing, they are usually returning just a subset of their IP addresses, not all of them.
In this case, the best is to discover the subnet addresses used by xyz.com and store them in the address table, then use permissions in the config.
Otherwise, you can try by doing a query and extract all hostnames from the database with sqlops and then loop through them and test with the functions from ipops module. You must have a fast dns server in order to not slow down the processing in the case you have lots of hostnames.
Cheers, Daniel