From: jamal <hadi@cyberus.ca>
To: Rodolfo Giometti <giometti@enneenne.com>
Cc: Samuel Ortiz <samuel@sortiz.org>, netdev@vger.kernel.org
Subject: Re: Generic netlink interface help
Date: Thu, 24 May 2007 09:51:45 -0400 [thread overview]
Message-ID: <1180014705.4092.18.camel@localhost> (raw)
In-Reply-To: <20070524112144.GB21180@enneenne.com>
On Thu, 2007-24-05 at 13:21 +0200, Rodolfo Giometti wrote:
> On Thu, May 24, 2007 at 10:04:08AM -0000, Samuel Ortiz wrote:
> >
> > Yes it's possible, even though it could be more tedious and painful.
>
> I know that. Have you some links to suggest to me in order to have
> some programming examples?
>
For debugging or writting some simple apps you could also use
iproute2/genl
example on my laptop to discover loaded users:
---------------
hadi@lilsol:~$ genl ctrl ls
Name: nlctrl
ID: 0x10 Version: 0x2 header size: 0 max attribs: 6
commands supported:
#1: ID-0x3 flags-0xe
Name: nl80211
ID: 0x11 Version: 0x1 header size: 0 max attribs: 22
commands supported:
#1: ID-0x1 flags-0xa
#2: ID-0x6 flags-0xa
#3: ID-0x8 flags-0xa
#4: ID-0x3 flags-0xb
#5: ID-0x4 flags-0xb
#6: ID-0x5 flags-0xb
#7: ID-0xa flags-0xb
#8: ID-0xb flags-0xa
#9: ID-0xf flags-0xb
#10: ID-0x10 flags-0xa
#11: ID-0x12 flags-0xb
#12: ID-0x13 flags-0xa
#13: ID-0x15 flags-0xa
#14: ID-0x19 flags-0xb
#15: ID-0x17 flags-0xb
#16: ID-0x18 flags-0xb
#17: ID-0x1a flags-0xb
#18: ID-0x1b flags-0xa
#19: ID-0xd flags-0xb
Name: TASKSTATS
ID: 0x12 Version: 0x1 header size: 0 max attribs: 4
commands supported:
#1: ID-0x1 flags-0xa
---------------------------
Load tipc and repeat...
-----------
hadi@lilsol:~$ sudo modprobe tipc
Name: nlctrl
ID: 0x10 Version: 0x2 header size: 0 max attribs: 6
commands supported:
#1: ID-0x3 flags-0xe
Name: nl80211
ID: 0x11 Version: 0x1 header size: 0 max attribs: 22
commands supported:
#1: ID-0x1 flags-0xa
#2: ID-0x6 flags-0xa
#3: ID-0x8 flags-0xa
#4: ID-0x3 flags-0xb
#5: ID-0x4 flags-0xb
#6: ID-0x5 flags-0xb
#7: ID-0xa flags-0xb
#8: ID-0xb flags-0xa
#9: ID-0xf flags-0xb
#10: ID-0x10 flags-0xa
#11: ID-0x12 flags-0xb
#12: ID-0x13 flags-0xa
#13: ID-0x15 flags-0xa
#14: ID-0x19 flags-0xb
#15: ID-0x17 flags-0xb
#16: ID-0x18 flags-0xb
#17: ID-0x1a flags-0xb
#18: ID-0x1b flags-0xa
#19: ID-0xd flags-0xb
Name: TASKSTATS
ID: 0x12 Version: 0x1 header size: 0 max attribs: 4
commands supported:
#1: ID-0x1 flags-0xa
Name: TIPC
ID: 0x13 Version: 0x1 header size: 8 max attribs: 0
commands supported:
#1: ID-0x1 flags-0x2
===============
You essentially write a little .so in user space that knows how to
access/intepret your kernel module
I know you are avoiding to use external libraries etc; but this may be a
good way to get started.
I can dig up some simple kernel/user code i have and if you bug Thomas
long enough he may give you another sample code he has.
cheers,
jamal
next prev parent reply other threads:[~2007-05-24 13:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-24 8:59 Generic netlink interface help Rodolfo Giometti
2007-05-24 9:43 ` Samuel Ortiz
2007-05-24 9:56 ` Rodolfo Giometti
2007-05-24 10:04 ` Samuel Ortiz
2007-05-24 11:21 ` Rodolfo Giometti
2007-05-24 13:21 ` Paul Moore
2007-05-24 13:51 ` jamal [this message]
2007-05-24 16:34 ` Johannes Berg
2007-05-25 22:18 ` Thomas Graf
2007-05-27 13:24 ` Johannes Berg
2007-05-27 13:50 ` Rodolfo Giometti
2007-05-27 13:54 ` Johannes Berg
2007-05-27 17:47 ` Rodolfo Giometti
2007-05-28 14:01 ` Samuel Ortiz
2007-05-30 21:45 ` Thomas Graf
2007-05-27 17:39 ` Rodolfo Giometti
2007-05-28 1:42 ` Samuel Ortiz
2007-05-28 7:41 ` Rodolfo Giometti
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