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authorDavid Quigley <dpquigl@tycho.nsa.gov>2006-06-28 09:36:46 -0400
committerRalf Baechle <ralf@linux-mips.org>2007-02-06 16:53:21 +0000
commit7418cb89af6f9e21660d60a4bd088a8b6fd11e81 (patch)
tree25f3f1a8a48f297c60b9fd696b2e8a0a2c3d1aa5 /arch/mips
parentc9170617510059c750cb91207b08f35001571a22 (diff)
[MIPS] SELinux: Add security hooks to mips-mt {get,set}affinity
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>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/kernel/mips-mt.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index c1373a6e668..a32f6797353 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -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);