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linux-kernel: Re: [PACH][RFC] SMACK : add logging support V1

Re: [PACH][RFC] SMACK : add logging support V1

From: Paul Moore <paul.moore_at_nospam>
Date: Sat Mar 07 2009 - 21:46:40 GMT
To: etienne <etienne.basset@numericable.fr>


On Saturday 07 March 2009 08:05:56 am etienne wrote:
> Hello,
>
> the following patch, against current 2.6.29-rc7, add logging of smack
> decisions. This is of course very useful to understand what your current
> smack policy does. It borrows a lot from selinux;
>
> It introduces a '/smack/logging' switch :
> 0: no logging
> 1: log denied (default)
> 2: log accepted
> 3: log denied&accepted
>
>
> example of logs produced :
>
> type=1400 audit(1236429348.858:5655879): SMACK[smack_task_kill]: denied
> pid=6521 comm="bash" subject:'toto' object:'_' requested:w pid=5757
> comm="knetworkmanager" type=1400 audit(1236429361.477:5655882):
> SMACK[smk_curacc_shm]: denied pid=6533 comm="ipcrm" subject:'toto'
> object:'_' requested:rw key=491521 type=1400 audit(1236429392.389:5655885):
> SMACK[smack_sb_mount]: denied pid=6536 comm="mount" subject:'toto'
> object:'_' requested:w path="/debug" dev=sda5 ino=16161 type=1400
> audit(1236429485.009:5655890): SMACK[smack_ptrace_may_access]: denied
> pid=6539 comm="strace" subject:'toto' object:'_' requested:rw pid=5634
> comm="python" type=1400 audit(1236429527.693:5655893):
> SMACK[smack_inode_getattr]: denied pid=6544 comm="ls" subject:'toto'
> object:'etienne' requested:r path="/home/etienne/linux" dev=sda8
> ino=2342913 type=1400 audit(1236429741.006:6006665):
> SMACK[smack_socket_sendmsg]: granted pid=6580 comm="ping" subject:'toto'
> object:'@' requested:w daddr=192.168.0.10 type=1400
> audit(1236429741.006:6006666): SMACK[smack_socket_sock_rcv_skb]: granted
> pid=6580 comm="ping" subject:'@' object:'toto' requested:w
> saddr=192.168.0.10 daddr=192.168.0.10 netif=lo

You will want to send this to the audit mailing list (linux-audit@redhat.com) for review, I suspect they will have several comments. -- paul moore linux @ hp -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html