storing the logs

storing the logs

[mohit verma]

hi ,

my module produces some data (very cititcal) and that i want to log  that to
 some disk residing file like log files. So among several ways like using
syslog  (and family) ,audit daemon  i am not finding the way to use the
functionalities of any of  these subsystems .i mean : practically i am still
unable to do that.

can someone point me to some practical implementations used by some other
modules or some practically sound articles to achieve this?


thanks a lot in advance.

-- 
........................
*MOHIT VERMA*
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Fwd: Permanent Delivery Failure

[mohit verma]

---------- Forwarded message ----------
From: MDaemon@fibcom.com <MDaemon@fibcom.com>
Date: Mon, Jan 31, 2011 at 6:40 PM
Subject: Permanent Delivery Failure
To: mohit89mlnc at gmail.com


The attached message had PERMANENT fatal delivery errors!

After one or more unsuccessful delivery attempts the attached message has
been removed from the mail queue on this server.  The number and frequency
of delivery attempts are determined by local configuration parameters.

YOUR MESSAGE WAS NOT DELIVERED TO ANY OF IT'S RECIPIENTS!

--- Session Transcript ---
 Mon 2011-01-31 18:40:37: Parsing message
<xxxxxxxxxxxxxxxxxx\pd50001451601.msg>
 Mon 2011-01-31 18:40:37: *  From: mohit89mlnc at gmail.com
 Mon 2011-01-31 18:40:37: *  To: amit at fibcom.com
 Mon 2011-01-31 18:40:37: *  Subject: storing the logs
 Mon 2011-01-31 18:40:37: *  Message-ID: <
AANLkTin7feriYDLgMZtazLQD+yOjU4hgxWs0_KxBSk9P at mail.gmail.com<AANLkTin7feriYDLgMZtazLQD%2ByOjU4hgxWs0_KxBSk9P@mail.gmail.com>
>
 Mon 2011-01-31 18:40:37: *  Route slip host: 202.71.129.104
 Mon 2011-01-31 18:40:37: *  Route slip port: 25
 Mon 2011-01-31 18:40:37: Attempting SMTP connection to [202.71.129.104]
 Mon 2011-01-31 18:40:37: Attempting to send message to smart host
 Mon 2011-01-31 18:40:37: Attempting SMTP connection to [202.71.129.104:25]
 Mon 2011-01-31 18:40:37: Waiting for socket connection...
 Mon 2011-01-31 18:40:37: *  Connection established (192.5.1.2:1395 ->
202.71.129.104:25)
 Mon 2011-01-31 18:40:37: Waiting for protocol to start...
 Mon 2011-01-31 18:40:37: <-- 220 smtp ready smtp.bizmail.net4india.com
 Mon 2011-01-31 18:40:37: --> EHLO fibcom.com
 Mon 2011-01-31 18:40:37: <-- 250-smtp.bizmail.net4india.com Hello
fibcom.com [203.101.81.201]
 Mon 2011-01-31 18:40:37: <-- 250-SIZE 57671680
 Mon 2011-01-31 18:40:37: <-- 250-PIPELINING
 Mon 2011-01-31 18:40:37: <-- 250 HELP
 Mon 2011-01-31 18:40:37: --> MAIL From:<mohit89mlnc@gmail.com> SIZE=5888
 Mon 2011-01-31 18:40:37: <-- 250 OK
 Mon 2011-01-31 18:40:37: --> RCPT To:<amit@fibcom.com>
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--- End Transcript ---


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---------- Forwarded message ----------
From: mohit verma <mohit89mlnc@gmail.com>
To: kernelnewbies <kernelnewbies@nl.linux.org>
Date: Mon, 31 Jan 2011 18:24:50 +0530
Subject: storing the logs
hi ,

my module produces some data (very cititcal) and that i want to log  that to
 some disk residing file like log files. So among several ways like using
syslog  (and family) ,audit daemon  i am not finding the way to use the
functionalities of any of  these subsystems .i mean : practically i am still
unable to do that.

can someone point me to some practical implementations used by some other
modules or some practically sound articles to achieve this?


thanks a lot in advance.

-- 
........................
*MOHIT VERMA*


_______________________________________________
Kernelnewbies mailing list
Kernelnewbies at kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies




-- 
........................
*MOHIT VERMA*
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Fwd: storing the logs

[mohit verma]

---------- Forwarded message ----------
From: mohit verma <mohit89mlnc@gmail.com>
Date: Mon, Jan 31, 2011 at 6:24 PM
Subject: storing the logs
To: kernelnewbies <kernelnewbies@nl.linux.org>


hi ,

my module produces some data (very cititcal) and that i want to log  that to
 some disk residing file like log files. So among several ways like using
syslog  (and family) ,audit daemon  i am not finding the way to use the
functionalities of any of  these subsystems .i mean : practically i am still
unable to do that.

can someone point me to some practical implementations used by some other
modules or some practically sound articles to achieve this?


thanks a lot in advance.

-- 
........................
*MOHIT VERMA*




-- 
........................
*MOHIT VERMA*
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Fwd: storing the logs

[mohit verma]

hi ,

my module produces some data (very cititcal) and that i want to log  that to
 some disk residing file like log files. So among several ways like using
syslog  (and family) ,audit daemon  i am not finding the way to use the
functionalities of any of  these subsystems .i mean : practically i am still
unable to do that.

can someone point me to some practical implementations used by some other
modules or some practically sound articles to achieve this?


thanks a lot in advance.

-- 
........................
*MOHIT VERMA*
-------------- next part --------------
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storing the logs

[Mauro Romano Trajber]

Are you sure you're doing it right ? Reading and writing files from within
the kernel space is bad thing to do.
Read this good article about that: http://www.linuxjournal.com/article/8110
 <http://www.linuxjournal.com/article/8110>And if you want to do this
anyway, there are some pieces of code too ;-)


Mauro Romano Trajber

On Mon, Jan 31, 2011 at 11:28 AM, mohit verma <mohit89mlnc@gmail.com> wrote:

>
>
>
> hi ,
>
> my module produces some data (very cititcal) and that i want to log  that
> to  some disk residing file like log files. So among several ways like using
> syslog  (and family) ,audit daemon  i am not finding the way to use the
> functionalities of any of  these subsystems .i mean : practically i am still
> unable to do that.
>
> can someone point me to some practical implementations used by some other
> modules or some practically sound articles to achieve this?
>
>
> thanks a lot in advance.
>
> --
> ........................
> *MOHIT VERMA*
>
>
>
>
>
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
>
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storing the logs

[Greg KH]

On Mon, Jan 31, 2011 at 11:38:30PM -0200, Mauro Romano Trajber wrote:
> Are you sure you're doing it right ? Reading and writing files from within
> the kernel space is bad thing to do.
> Read this good article about that: http://www.linuxjournal.com/article/8110
>  <http://www.linuxjournal.com/article/8110>And if you want to do this
> anyway, there are some pieces of code too ;-)

Yes, but you really don't want to do that.

Seriously.

Don't.

Bad things will happen and no one will be able to help you.

Use a "real" way to get data from the kernel to userspace (netlink,
pseudo-filesystem, device node, etc.)

good luck,

greg k-h

Fwd: storing the logs

[mohit verma]

thanks greg,,

a silly question......please have a look.......

i create a socket to communicate to the user space app to listen to and
responsible for loggin ... via   my_sock=netlink_creat_sock()
i create my own  logging message format to send it via netlink interface.
then  how can i let my module know  which process to bind it to? i mean to
bind my socket to any user space application i need the pid of that one ,so
at the very first time  how can i  initialize the binding process with user
space application?

i hope.. i am clear to u. please let me know if not....i wll try again.


i 'd really appreciate any help.



-- 
........................
*MOHIT VERMA*
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Fwd: storing the logs

[mohit verma]

thanks greg,,

a silly question........please have a look.......

i create a socket to communicate to the user space app to listen to and
responsible for loggin ... via   my_sock=netlink_creat_sock()
i create my own  logging message format to send it via netlink interface.
then  how can i let my module know  which process to bind it to? i mean to
bind my socket to any user space application i need the pid of that one ,so
at the very first time  how can i  initialize the binding process with user
space application?

i hope.. i am clear to u. please let me know if not....i wll try again.


i 'd really appreciate any help.
-------------- next part --------------
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Fwd: storing the logs

[Lutz]

Am Montag, den 07.02.2011, 00:16 +0530 schrieb mohit verma:

> i create a socket to communicate to the user space app to listen to
> and responsible for loggin ... via   my_sock=netlink_creat_sock()
> i create my own  logging message format to send it via netlink
> interface.
> then  how can i let my module know  which process to bind it to? i
> mean to bind my socket to any user space application i need the pid of
> that one 

haven't tried netlink so maybe this won't be much help.
isn't it possible to just bind to somewhere on the network using

int kbind(ksocket_t socket, struct sockaddr *address, int address_len)

from http://ksocket.sourceforge.net/
?

if i'm not mistaken you won't need any pid

good luck,

Lutz

Fwd: storing the logs

[Lutz]

Am Montag, den 07.02.2011, 00:16 +0530 schrieb mohit verma:

> i create a socket to communicate to the user space app to listen to
> and responsible for loggin ... via   my_sock=netlink_creat_sock()
> i create my own  logging message format to send it via netlink
> interface.
> then  how can i let my module know  which process to bind it to? i
> mean to bind my socket to any user space application i need the pid of
> that one 

haven't tried netlink so maybe this won't be much help.
isn't it possible to just bind to somewhere on the network using

int kbind(ksocket_t socket, struct sockaddr *address, int address_len)

from http://ksocket.sourceforge.net/  ?

if i'm not mistaken you won't need any pid

good luck,

Lutz

Fwd: storing the logs

[Ashok Babu]

> Am Montag, den 07.02.2011, 00:16 +0530 schrieb mohit verma:
>
>> i create a socket to communicate to the user space app to listen to
>> and responsible for loggin ... via ? my_sock=netlink_creat_sock()
>> i create my own ?logging message format to send it via netlink
>> interface.
>> then ?how can i let my module know ?which process to bind it to? i
>> mean to bind my socket to any user space application i need the pid of
>> that one
>
> haven't tried netlink so maybe this won't be much help.
> isn't it possible to just bind to somewhere on the network using
>
> int kbind(ksocket_t socket, struct sockaddr *address, int address_len)
>
> from http://ksocket.sourceforge.net/ ??
>
> if i'm not mistaken you won't need any pid
>
> good luck,
>
> Lutz
>

Why don't you use debugfs or procfs and use the application to read from it ?