2005-04-16 15:20:36 -07:00
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2007-06-13 12:48:53 -07:00
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2006-01-18 17:42:59 -08:00
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2007-07-21 19:11:35 -07:00
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2005-04-16 15:20:36 -07:00
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2006-09-25 23:11:21 -07:00
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2005-07-27 13:04:35 -07:00
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2013-06-18 03:24:51 +01:00
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2011-08-23 00:42:10 -07:00
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2006-01-08 22:34:25 -08:00
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2011-08-23 00:42:10 -07:00
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2006-01-08 22:34:25 -08:00
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2011-08-23 00:42:10 -07:00
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2006-01-08 22:34:25 -08:00
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2005-04-16 15:20:36 -07:00
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2012-05-14 03:57:31 +00:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-11-11 22:16:48 +00:00
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2007-07-14 18:55:06 -07:00
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2012-10-02 11:17:55 -07:00
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2007-07-14 18:55:06 -07:00
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2008-02-26 17:52:05 -08:00
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2007-07-14 18:55:06 -07:00
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2010-01-30 12:24:26 +00:00
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2012-10-02 11:17:55 -07:00
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2010-01-30 12:24:26 +00:00
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2014-02-10 21:40:51 +01:00
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2010-01-30 12:24:26 +00:00
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2012-10-01 12:32:35 +00:00
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2013-02-22 21:25:38 +00:00
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2013-03-25 14:49:46 +00:00
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2012-10-01 12:32:35 +00:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2011-08-23 00:42:10 -07:00
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2012-11-16 19:27:13 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2007-09-25 16:14:46 -07:00
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2007-11-06 20:35:55 -08:00
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2007-09-25 16:14:46 -07:00
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2007-11-06 20:35:55 -08:00
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2007-09-25 16:14:46 -07:00
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2011-08-23 00:42:10 -07:00
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2012-10-02 11:17:55 -07:00
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2014-01-17 01:27:08 -08:00
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2011-08-23 00:42:10 -07:00
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packet: nlmon: virtual netlink monitoring device for packet sockets
Currently, there is no good possibility to debug netlink traffic that
is being exchanged between kernel and user space. Therefore, this patch
implements a netlink virtual device, so that netlink messages will be
made visible to PF_PACKET sockets. Once there was an approach with a
similar idea [1], but it got forgotten somehow.
I think it makes most sense to accept the "overhead" of an extra netlink
net device over implementing the same functionality from PF_PACKET
sockets once again into netlink sockets. We have BPF filters that can
already be easily applied which even have netlink extensions, we have
RX_RING zero-copy between kernel- and user space that can be reused,
and much more features. So instead of re-implementing all of this, we
simply pass the skb to a given PF_PACKET socket for further analysis.
Another nice benefit that comes from that is that no code needs to be
changed in user space packet analyzers (maybe adding a dissector, but
not more), thus out of the box, we can already capture pcap files of
netlink traffic to debug/troubleshoot netlink problems.
Also thanks goes to Thomas Graf, Flavio Leitner, Jesper Dangaard Brouer.
[1] http://marc.info/?l=linux-netdev&m=113813401516110
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-21 19:38:08 +02:00
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2011-08-23 00:42:10 -07:00
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2011-11-27 17:08:33 +00:00
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2011-08-23 00:42:10 -07:00
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2011-11-08 10:31:10 +00:00
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2005-04-16 15:20:36 -07:00
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2005-07-27 13:04:35 -07:00
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2005-04-16 15:20:36 -07:00
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2005-07-30 19:31:23 -04:00
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2011-08-03 03:01:58 -07:00
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2011-08-23 00:42:10 -07:00
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2011-08-03 03:17:13 -07:00
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2011-08-23 00:42:10 -07:00
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2005-04-16 15:20:36 -07:00
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2008-12-23 16:18:48 -08:00
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2005-04-16 15:20:36 -07:00
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2012-08-26 05:10:11 +00:00
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2007-07-17 18:37:06 -07:00
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2009-03-27 16:28:34 -07:00
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2007-07-17 18:37:06 -07:00
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2011-03-15 00:06:18 +00:00
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2007-07-17 18:37:06 -07:00
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2009-10-13 00:15:51 -07:00
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2010-11-11 12:31:21 +00:00
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2009-10-13 00:15:51 -07:00
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2011-11-28 13:35:35 -08:00
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2007-06-13 12:48:53 -07:00
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