Juha Heinanen schrieb:
Iñaki Baz Castillo writes:
> What about calling alias_contact() just in case nat_test() detects the
> following two requeriments:
>
> 1) The IP in Contact is private.
> 2) There is no ";alias" param in Contact URI.
>
> Of course a new nat_test flag would be needed for point 2.
inaki,
the rule is: do not call alias_contact(), when request or reply comes
from a proxy. so even if there is no ;alias in contact, alias_contact()
must not be called when request or reply comes from a proxy.
It is not possible to detect if a reply comes from a proxy or not. You
could add the alias anyway and handle the problem in "handle_alias": If
alias parameter is removed from RURI (in-dialog request), set $du only
if it was not already set by loose_route().
Further, alias_contact() must also be called on in-dialog
requests/responses.
I think the functions are great to have, but would like different naming
(either have "alias" always at the beginning or at the end of the
function name).
e.g: add_alias(), handle_alias()
regards
klaus
the question is, is it possible to somehow detect it. for initial
requests, proxy can be detected based on existence of an rr header.
regarding in-dialog requests, perhaps that could be detected if proxy
adds into rr header an param telling that request came from a proxy.
it might then be possible to test that param in in-dialog requests.
lets think it more.
-- juha
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