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SubjectRe: 2.6.25 Kernel - Problems with capabilities
Quoting David (david@unsolicited.net):
> serge@hallyn.com wrote:
>>>
>>> /lib/libcap.so.1 -> libcap.so.1.92
>>>
>>> I guess that's 1.92 (should be the version shipped with SuSE 9.1).
>>>
>>
>> Ok, thanks, then it's definately not what I was thinking.
>>
>> (Will wait to check out your strace)
>>
> strace attached.
>
> Cheers
> David
>

...
> capget(0x20071026, 0, {, , }) = -1 EINVAL (Invalid argument)

This is odd. libcap-1.x should be passing in 0x19980330.

Next, given the -EINVAL return value ntpd should be seeing a NULL result
from cap_get_proc() and exiting right there.

What version of ntpd is this? (I must be looking at a wrong value, but
even so the fact that cap_get_proc()->capget() is using 0x20071026 for
version doesn't make sense)

> capset(0, 0, {CAP_NET_BIND_SERVICE|CAP_SYS_TIME, CAP_NET_BIND_SERVICE|CAP_SYS_TIME, CAP_NET_BIND_SERVICE|CAP_SYS_TIME}) = -1 EINVAL (Invalid argument)
> time(NULL) = 1208803493
> write(5, "21 Apr 19:44:53 ntpd[6118]: cap_"..., 92) = 92
> munmap(0x40022000, 4096) = 0
> exit_group(-1) = ?
> Process 6118 detached


thanks,
-serge


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