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capabilities: call has_ns_capability from has_capability

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Declare the more specific has_ns_capability first in the code and then call it
from has_capability.  The declaration reversal isn't stricty necessary since
they are both declared in header files, but it just makes sense to put more
specific functions first in the code.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
This commit is contained in:
Eric Paris 2012-01-03 12:25:15 -05:00
parent 2920a8409d
commit 25e7570341
1 changed files with 16 additions and 22 deletions
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38
kernel/capability.c
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@ -287,28 +287,7 @@ error:
}
/**
* has_capability - Does a task have a capability in init_user_ns
* @t: The task in question
* @cap: The capability to be tested for
*
* Return true if the specified task has the given superior capability
* currently in effect to the initial user namespace, false if not.
*
* Note that this does not set PF_SUPERPRIV on the task.
*/
bool has_capability(struct task_struct *t, int cap)
{
int ret;
rcu_read_lock();
ret = security_capable(__task_cred(t), &init_user_ns, cap);
rcu_read_unlock();
return (ret == 0);
}
/**
* has_capability - Does a task have a capability in a specific user ns
* has_ns_capability - Does a task have a capability in a specific user ns
* @t: The task in question
* @ns: target user namespace
* @cap: The capability to be tested for
@ -330,6 +309,21 @@ bool has_ns_capability(struct task_struct *t,
return (ret == 0);
}
/**
* has_capability - Does a task have a capability in init_user_ns
* @t: The task in question
* @cap: The capability to be tested for
*
* Return true if the specified task has the given superior capability
* currently in effect to the initial user namespace, false if not.
*
* Note that this does not set PF_SUPERPRIV on the task.
*/
bool has_capability(struct task_struct *t, int cap)
{
return has_ns_capability(t, &init_user_ns, cap);
}
/**
* has_capability_noaudit - Does a task have a capability (unaudited)
* @t: The task in question