lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Wed, 5 Dec 2007 19:42:31 +0100
From:	Stefan Rompf <>
To:	David Miller <>
Subject: Re: sockets affected by IPsec always block (2.6.23)

Am Mittwoch, 5. Dezember 2007 08:12 schrieb David Miller:

> Actually, consider even a case like DNS.  Let's say the timeout
> is set to 2 seconds or something and you have 3 DNS servers
> listed, on different IPSEC destinations, in your resolv.conf
> Each IPSEC route that isn't currently resolved will cause packet loss
> of the DNS lookup request with xfrm_larval_drop set to '1'.
> If all 3 need to be resolved, the DNS lookup will fully fail
> which defeats the purpose of listing 3 servers for redundancy
> don't you think? :-)

In your example, the DNS server might actually stop responding to other 
clients while waiting for the (expected to be non-blocking) connect() to 
return. This is much much worse.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists