[rsbac] rsbac_init goes RSBAC_EINVALIDREQUEST with devicemapper

[Jens Kasten]

Maybe I was wrong. If you like you can join irc on freenode.org channel 
rsbac.
But you need a bit patience for reply but when someone is in the channel 
its going fast.


Am 05.12.2018 21:11, schrieb Jens Kasten:
> Hello,
> 
> you have to enable initrd support in kernel configuration in rsbac 
> section.
> 
> Jens
> 
> Am December 5, 2018 12:43:00 PM UTC schrieb Palon Setin 
> <palons at danwin1210.me>:
>> Hi!
>> 
>> I have successfully compiled rsbac, and installed rsbac-admin, as well
>> as rsbac-tools.
>> 
>> This is the cryptsetup device with / , or the root_dev, of my system:
>> 
>> # ls -l /dev/mapper/g9_dev
>> lrwxrwxrwx 1 root root 7 2011-11-11 11:11 /dev/mapper/g9_dev -> 
>> ../dm-0
>> # ls -l /dev/dm-0
>> brw-rw---- 1 root disk 251, 0 2011-11-11 11:11 /dev/dm-0
>> #
>> 
>> The kernel parameters that I booted with are:
>> rsbac_softmode rsbac_delayed_root=251:0
>> 
>> But, still:
>> 
>> # rsbac_init /dev/dm-0
>> Error: RSBAC_EINVALIDREQUEST
>> # rsbac_init /dev/g9_dev
>> Error: RSBAC_EINVALIDREQUEST
>> # rsbac_init 251:0
>> Error: RSBAC_EINVALIDREQUEST
>> #
>> 
>> I searched, and found these references (none directly related to
>> encrypted root_dev) in ML:
>> 
>> https://www.rsbac.org/pipermail/rsbac/2010-March/002512.html
>> https://www.rsbac.org/pipermail/rsbac/2009-December/002496.html
>>    (regarding this one: I have not compile UM in the kernel)
>> 
>> https://www.rsbac.org/pipermail/rsbac/2005-July/001602.html
>>    where it says:
>>    The device must have the major shown in /proc/devices
>> 
>> And it does:
>> 
>> # cat /proc/devices
>> Character devices:
>>  1 mem
>>  4 /dev/vc/0
>>  4 tty
>>  5 /dev/tty
>> ...
>> Block devices:
>>  1 ramdisk
>>  7 loop
>>  8 sd
>>  9 md
>> ...
>> 68 sd
>> ...
>> 133 sd
>> 134 sd
>> 135 sd
>> 251 device-mapper
>> 252 virtblk
>> 
>> 
>> How do I get rsbac_init to do the work in my system?
>> 
>> Thanks in advance!
>> 
>> Panon Setin
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