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Date: Thu, 19 Nov 2015 19:55:04 -0500 (EST) From: David Miller <davem@...emloft.net> To: lorenzo@...gle.com Cc: hannes@...essinduktion.org, eric.dumazet@...il.com, stephen@...workplumber.org, netdev@...r.kernel.org, edumazet@...gle.com, ek@...gle.com, maze@...gle.com, dtor@...gle.com Subject: Re: Add a SOCK_DESTROY operation to close sockets from userspace From: Lorenzo Colitti <lorenzo@...gle.com> Date: Fri, 20 Nov 2015 09:19:25 +0900 > In this case, userspace knows that that app's connections are now > unusable because it configured an iptables rule to block them. The > kernel doesn't really know until it the time comes to send a packet, > and maybe not even then. Netfilter could perform signalling on skb->sk when it drops packets. Your example is actually a argument _for_ doing this in the kernel. :-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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