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authorChris Wright <chrisw@sous-sol.org>2006-03-25 03:07:41 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-25 08:22:56 -0800
commit12b5989be10011387a9da5dee82e5c0d6f9d02e7 (patch)
tree74da71d407bf26bf97c639bb2b473de233a736ac /kernel
parent77d47582c2345e071df02afaf9191641009287c4 (diff)
downloadlinux-sh-12b5989be10011387a9da5dee82e5c0d6f9d02e7.tar.gz
[PATCH] refactor capable() to one implementation, add __capable() helper
Move capable() to kernel/capability.c and eliminate duplicate implementations. Add __capable() function which can be used to check for capabiilty of any process. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/capability.c16
-rw-r--r--kernel/sys.c12
2 files changed, 16 insertions, 12 deletions
diff --git a/kernel/capability.c b/kernel/capability.c
index bfa3c92e16f2..1a4d8a40d3f9 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -233,3 +233,19 @@ out:
return ret;
}
+
+int __capable(struct task_struct *t, int cap)
+{
+ if (security_capable(t, cap) == 0) {
+ t->flags |= PF_SUPERPRIV;
+ return 1;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(__capable);
+
+int capable(int cap)
+{
+ return __capable(current, cap);
+}
+EXPORT_SYMBOL(capable);
diff --git a/kernel/sys.c b/kernel/sys.c
index 19d058be49d4..421009cedb51 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -224,18 +224,6 @@ int unregister_reboot_notifier(struct notifier_block * nb)
EXPORT_SYMBOL(unregister_reboot_notifier);
-#ifndef CONFIG_SECURITY
-int capable(int cap)
-{
- if (cap_raised(current->cap_effective, cap)) {
- current->flags |= PF_SUPERPRIV;
- return 1;
- }
- return 0;
-}
-EXPORT_SYMBOL(capable);
-#endif
-
static int set_one_prio(struct task_struct *p, int niceval, int error)
{
int no_nice;