From: David Quigley <[email protected]>
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.
Please apply.
Signed-Off-By: David Quigley <[email protected]>
Acked-by: Stephen Smalley <[email protected]>
Signed-off-by: James Morris <[email protected]>
---
arch/mips/kernel/mips-mt.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff -uprN -X /home/dpquigl/dontdiff linux-2.6.17-mm3/arch/mips/kernel/mips-mt.c linux-2.6.17-mm3-affiniy/arch/mips/kernel/mips-mt.c
--- linux-2.6.17-mm3/arch/mips/kernel/mips-mt.c 2006-06-17 21:49:35.000000000 -0400
+++ linux-2.6.17-mm3-affiniy/arch/mips/kernel/mips-mt.c 2006-06-27 15:47:46.000000000 -0400
@@ -95,6 +95,10 @@ asmlinkage long mipsmt_sys_sched_setaffi
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;
@@ -140,8 +144,9 @@ asmlinkage long mipsmt_sys_sched_getaffi
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);
-
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