From a1836a42daf5ddfe9a891973734bd9a7d62eb504 Mon Sep 17 00:00:00 2001 From: David Quigley Date: Fri, 30 Jun 2006 01:55:49 -0700 Subject: [PATCH] SELinux: Add security hook definition for getioprio and insert hooks 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 Acked-by: Stephen Smalley Signed-off-by: James Morris Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- security/selinux/hooks.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'security/selinux/hooks.c') diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index a5189a34735..51bec4c88f1 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2671,6 +2671,11 @@ static int selinux_task_setioprio(struct task_struct *p, int ioprio) return task_has_perm(current, p, PROCESS__SETSCHED); } +static int selinux_task_getioprio(struct task_struct *p) +{ + return task_has_perm(current, p, PROCESS__GETSCHED); +} + static int selinux_task_setrlimit(unsigned int resource, struct rlimit *new_rlim) { struct rlimit *old_rlim = current->signal->rlim + resource; @@ -4449,6 +4454,7 @@ static struct security_operations selinux_ops = { .task_setgroups = selinux_task_setgroups, .task_setnice = selinux_task_setnice, .task_setioprio = selinux_task_setioprio, + .task_getioprio = selinux_task_getioprio, .task_setrlimit = selinux_task_setrlimit, .task_setscheduler = selinux_task_setscheduler, .task_getscheduler = selinux_task_getscheduler, -- cgit v1.2.3