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[PATCH] SELinux: Add security hook definition for getioprio and insert hooks

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Add a new security hook definition for the sys_ioprio_get operation.  At
present, the SELinux hook function implementation for this hook is
identical to the getscheduler implementation but a separate hook is
introduced to allow this check to be specialized in the future if
necessary.

This patch also creates a helper function get_task_ioprio which handles the
access check in addition to retrieving the ioprio value for the task.

Signed-off-by: David Quigley <[email protected]>
Acked-by: Stephen Smalley <[email protected]>
Signed-off-by: James Morris <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
David Quigley 2006-06-30 01:55:49 -07:00 • committed by Linus Torvalds
commit a1836a42da
4 changed files with 51 additions and 5 deletions
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6
security/dummy.c
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@ -524,6 +524,11 @@ static int dummy_task_setioprio (struct task_struct *p, int ioprio)
return 0;
}
static int dummy_task_getioprio (struct task_struct *p)
{
return 0;
}
static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim)
{
return 0;
@ -988,6 +993,7 @@ void security_fixup_ops (struct security_operations *ops)
set_to_dummy_if_null(ops, task_setgroups);
set_to_dummy_if_null(ops, task_setnice);
set_to_dummy_if_null(ops, task_setioprio);
set_to_dummy_if_null(ops, task_getioprio);
set_to_dummy_if_null(ops, task_setrlimit);
set_to_dummy_if_null(ops, task_setscheduler);
set_to_dummy_if_null(ops, task_getscheduler);