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[MIPS] SELinux: Add security hooks to mips-mt {get,set}affinity

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This patch adds LSM hooks into the setaffinity and getaffinity functions
for the mips architecture to enable security modules to control these
operations between tasks with different security attributes. This
implementation uses the existing task_setscheduler and task_getscheduler
LSM hooks.
    
Signed-Off-By: David Quigley <dpquigl@tycho.nsa.gov>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Quigley 2006-06-28 09:36:46 -04:00 committed by Ralf Baechle
parent c917061751
commit 7418cb89af
1 changed files with 7 additions and 2 deletions
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9
arch/mips/kernel/mips-mt.c
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@ -96,6 +96,10 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
goto out_unlock;
}
retval = security_task_setscheduler(p, 0, NULL);
if (retval)
goto out_unlock;
/* Record new user-specified CPU set for future reference */
p->thread.user_cpus_allowed = new_mask;
@ -141,8 +145,9 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
p = find_process_by_pid(pid);
if (!p)
goto out_unlock;
retval = 0;
retval = security_task_getscheduler(p);
if (retval)
goto out_unlock;
cpus_and(mask, p->thread.user_cpus_allowed, cpu_possible_map);