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authorDavid Quigley <dpquigl@tycho.nsa.gov>2006-06-23 02:03:59 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:42:53 -0700
commite7834f8fccd791225a1cf91c2c3e740ad8e2e145 (patch)
tree8f48d03d7b1dc32d326825fef1d1c54117a06ac8
parent03e68060636e05989ea94bcb671ab633948f328c (diff)
downloadlinux-e7834f8fccd791225a1cf91c2c3e740ad8e2e145.tar.gz
[PATCH] SELinux: add security hooks to {get,set}affinity
This patch adds LSM hooks into the setaffinity and getaffinity functions to enable security modules to control these operations between tasks with 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: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--kernel/sched.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index c13f1bd2df7d3..87665132cec16 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3886,6 +3886,10 @@ long sched_setaffinity(pid_t pid, cpumask_t new_mask)
!capable(CAP_SYS_NICE))
goto out_unlock;
+ retval = security_task_setscheduler(p, 0, NULL);
+ if (retval)
+ goto out_unlock;
+
cpus_allowed = cpuset_cpus_allowed(p);
cpus_and(new_mask, new_mask, cpus_allowed);
retval = set_cpus_allowed(p, new_mask);
@@ -3954,7 +3958,10 @@ long sched_getaffinity(pid_t pid, cpumask_t *mask)
if (!p)
goto out_unlock;
- retval = 0;
+ retval = security_task_getscheduler(p);
+ if (retval)
+ goto out_unlock;
+
cpus_and(*mask, p->cpus_allowed, cpu_online_map);
out_unlock: