GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

[PATCH] lsm: add task_setioprio hook

Browse source 
Implement an LSM hook for setting a task's IO priority, similar to the hook
for setting a tasks's nice value.

A previous version of this LSM hook was included in an older version of
multiadm by Jan Engelhardt, although I don't recall it being submitted
upstream.

Also included is the corresponding SELinux hook, which re-uses the setsched
permission in the proccess class.

Signed-off-by: James Morris <jmorris@namei.org>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
James Morris 2006-06-23 02:03:58 -07:00 • committed by Linus Torvalds
parent 9216dfad4f
commit 03e6806063
4 changed files with 34 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

16
include/linux/security.h
View file

@ -577,6 +577,11 @@ struct swap_info_struct;
* @p contains the task_struct of process.
* @nice contains the new nice value.
* Return 0 if permission is granted.
* @task_setioprio
* Check permission before setting the ioprio value of @p to @ioprio.
* @p contains the task_struct of process.
* @ioprio contains the new ioprio value
* Return 0 if permission is granted.
* @task_setrlimit:
* Check permission before setting the resource limits of the current
* process for @resource to @new_rlim. The old resource limit values can
@ -1210,6 +1215,7 @@ struct security_operations {
int (*task_getsid) (struct task_struct * p);
int (*task_setgroups) (struct group_info *group_info);
int (*task_setnice) (struct task_struct * p, int nice);
int (*task_setioprio) (struct task_struct * p, int ioprio);
int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim);
int (*task_setscheduler) (struct task_struct * p, int policy,
struct sched_param * lp);
@ -1836,6 +1842,11 @@ static inline int security_task_setnice (struct task_struct *p, int nice)
return security_ops->task_setnice (p, nice);
}
static inline int security_task_setioprio (struct task_struct *p, int ioprio)
{
return security_ops->task_setioprio (p, ioprio);
}
static inline int security_task_setrlimit (unsigned int resource,
struct rlimit *new_rlim)
{
@ -2478,6 +2489,11 @@ static inline int security_task_setnice (struct task_struct *p, int nice)
return 0;
}
static inline int security_task_setioprio (struct task_struct *p, int ioprio)
{
return 0;
}
static inline int security_task_setrlimit (unsigned int resource,
struct rlimit *new_rlim)
{