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Message-ID: <20080513221227.GA7164@martell.zuzino.mipt.ru>
Date: Wed, 14 May 2008 02:12:27 +0400
From: Alexey Dobriyan <adobriyan@...il.com>
To: KaiGai Kohei <kaigai@...jp.nec.com>
Cc: greg@...ah.com, morgan@...nel.org, serue@...ibm.com,
chrisw@...s-sol.org, linux-security-module@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] exporting capability name/code pairs (for 2.6.26)
>> You claim that libcap people can't or don't want to parse such file?
>
> Yes,
> In the previous discussion, it was undesirable idea to parse a file
> to obtain a new/unknown capability name/code pair, because it tends
> to have bigger number and appears at the tail.
> (If my brain memories it correctly.)
>
>> 0 CAP_CHOWN
>> 1 CAP_DAC_OVERRIDE
>> 2 CAP_DAC_READ_SEARCH
>> 3 CAP_FOWNER
>> 4 CAP_FSETID
>> 5 CAP_KILL
>> 6 CAP_SETGID
>> 7 CAP_SETUID
>> 8 CAP_SETPCAP
>> 9 CAP_LINUX_IMMUTABLE
>> 10 CAP_NET_BIND_SERVICE
>> 11 CAP_NET_BROADCAST
>> 12 CAP_NET_ADMIN
>> 13 CAP_NET_RAW
>> 14 CAP_IPC_LOCK
>> 15 CAP_IPC_OWNER
>> 16 CAP_SYS_MODULE
>> 17 CAP_SYS_RAWIO
>> 18 CAP_SYS_CHROOT
>> 19 CAP_SYS_PTRACE
>> 20 CAP_SYS_PACCT
>> 21 CAP_SYS_ADMIN
>> 22 CAP_SYS_BOOT
>> 23 CAP_SYS_NICE
>> 24 CAP_SYS_RESOURCE
>> 25 CAP_SYS_TIME
>> 26 CAP_SYS_TTY_CONFIG
>> 27 CAP_MKNOD
>> 28 CAP_LEASE
>> 29 CAP_AUDIT_WRITE
>> 30 CAP_AUDIT_CONTROL
>> 31 CAP_SETFCAP
>> 32 CAP_MAC_OVERRIDE
>> 33 CAP_MAC_ADMIN
>> That's what you claim? Do I undestand you correctly?
>
> Yes, but I don't *oppose* your approach. :)
>
> BTW, I think "version" info should be included as follows:
> 0x20071026 vesion
> 0 cap_chown
> 1 cap_dac_override
> : :
It shouldn't. You can do capget(42, ...);, get EINVAL and current
version written back.
Wrap this in libcap if needed.
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