Thanks for the prompt reply, I added the same printk message in the other kernel files like here /usr/src/linux-2.6.33.3/init/calibrate.c
int lps_precision = LPS_PREC;
printk("*** Just testing prinkt to work ***\n");
static bool printed;
and recompiled the kernel and its showing in the dmesg. Is this means kernel logger is fine?
also can please verify the steps i made to make lsm module just for pirnkt message.
Regards
On Fri, May 20, 2011 at 1:56 PM, mosta <mosta.me@googlemail.com> wrote:
you have to check at what level you're kernel logger is and set it to
the according level.
greetings mosta
> mob: +60166205504 <tel:%2B60166205504>
On 05/20/11 06:29, toqeer ali wrote:
> Hi All,
>
>
> I am writing a skeleton LSM module to only print the message at boot
> time, but I could not see any printk message in the dmesg.
>
> Below are steps i did to enable the printk messages in the LSM module.
>
> What i did is download linux kernel 2.6.33.3.
>
> 1) added the line source security/lsmcustommod/Kconfig in
> linuxsrc/security/Kconfig near ima/Kconfig.
> 2) added "subdir-$(CONFIG_SECURITY_LSMCUSTOMMOD) +=
> lsmcustommod" line at linuxsrc/security/Makefile
> 3) created a directory in linuxsrc/security/lsmcustommod and putted
> three files
>
> i) lsmcustommod.c
> ii) Kconfig
> iii) Makefile
>
> *Kconfig file contents*
>
> config SECURITY_LSMCUSTOMMOD
> bool "LSMCUSTOMMOD Support"
> depends on SECURITY
> select NETWORK_SECMARK
> default n
> help
>
> *Makefile Contents*
>
> obj-$(CONFIG_SECURITY_LSMCUSTOMMOD) := lsmcustommod.o
>
> *lsmcustommod.c* contents
>
> static __init lsmcustommod_init(void){
> /* register the hooks */
>
> if (register_security(&lsmcustommod_ops))
> panic("lsmcustommod: Unable to register lsmcustommod
> with kernel.\n");
> else
> printk("lsmcustommod: registered with the kernel\n");
>
> return 0;
> }
>
> static void __exit lsmcustommod_exit (void)
> {
> return;
> }
>
>
>
> module_init (lsmcustommod_init);
> module_exit (lsmcustommod_exit);
>
> MODULE_DESCRIPTION("lsmcustommod");
> MODULE_LICENSE("GPL");
> #endif /* CONFIG_SECURITY_LSMCUSTOMMOD */
>
>
>
> After that I also added some return 0 and printk statments in the
> lsmcustommod_ops stucture.
>
> lastly disabled all modules in make menuconfig and select LSMCUTOMMOD
> in security sections of the menufile and compile the kernel by the
> following command.
>
> make && make modules && make modules_install && make install
> updategrub2
>
>
> --
> Toqeer Ali Syed
>
> Red Hat Certified Engineer
>
> mob: +92 321 9059916 <tel:%2B92%20321%209059916>
>
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies@xxxxxxxxxxxxxxxxx
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
--
Toqeer Ali Syed
Red Hat Certified Engineer
mob: +60166205504
mob: +92 321 9059916
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