On 07/07/2008 14:49, Filippo Zangheri wrote:
> ...
>
> Yes, I have evidence of 'ad' being NULL.
>
> I added the following check right after the declaration of that pointer:
>
> if (ad == NULL) continue;
>
> And the segfault disappears. The only different behaviour is that loopback
> address 127.0.0.1 is not listed in host alias addresses:
>
> ...
Update:
I've made some tests with and without patch (ad NULL check), and with and
without ppp connection (I use a PPPoE connection to Internet). Here are the
results:
1. ppp connection active and no patch: Segfault.
2. ppp connection active and patch: pjsip shows the following
addresses:
15:37:52.525 stateful_proxy Local host aliases:
15:37:52.525 stateful_proxy 82.59.213.185:5060
15:37:52.525 stateful_proxy 192.168.2.20:5060
15:37:52.525 stateful_proxy asus-laptop:5060
15:37:52.525 stateful_proxy localhost:5060
3. ppp connectino inactive and no patch: pjsip shows the following
addresses:
15:39:34.583 stateful_proxy Local host aliases:
15:39:34.583 stateful_proxy 127.0.0.1:5060
15:39:34.583 stateful_proxy asus-laptop:5060
15:39:34.583 stateful_proxy localhost:5060
4. ppp connection inactive and patch: pjsip shows the following
addresses (same as before):
15:40:29.949 stateful_proxy Local host aliases:
15:40:29.949 stateful_proxy 127.0.0.1:5060
15:40:29.949 stateful_proxy asus-laptop:5060
15:40:29.949 stateful_proxy localhost:5060
It seems that getifaddrs() gets confused when a ppp interface is
active.
It would be great if somebody could test stateful_proxy (or stateless)
on Linux with a ppp connection active.
If I got more reports I'd report this problem to netdev at vger.kernel.org,
the Linux kernel network developers' mailing list.
Thanks.
--
Filippo Zangheri
GPG key ID: 0x6C1F2F2F
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