Darrel Goeddel | 376bd9c | 2006-02-24 15:44:05 -0600 | [diff] [blame] | 1 | /* |
| 2 | * SELinux services exported to the rest of the kernel. |
| 3 | * |
| 4 | * Author: James Morris <jmorris@redhat.com> |
| 5 | * |
| 6 | * Copyright (C) 2005 Red Hat, Inc., James Morris <jmorris@redhat.com> |
| 7 | * Copyright (C) 2006 Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com> |
Steve Grubb | e7c3497 | 2006-04-03 09:08:13 -0400 | [diff] [blame] | 8 | * Copyright (C) 2006 IBM Corporation, Timothy R. Chavez <tinytim@us.ibm.com> |
Darrel Goeddel | 376bd9c | 2006-02-24 15:44:05 -0600 | [diff] [blame] | 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2, |
| 12 | * as published by the Free Software Foundation. |
| 13 | */ |
| 14 | #include <linux/types.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/module.h> |
| 17 | #include <linux/selinux.h> |
Steve Grubb | 1b50eed | 2006-04-03 14:06:13 -0400 | [diff] [blame] | 18 | #include <linux/fs.h> |
Steve Grubb | 9c7aa6a | 2006-03-31 15:22:49 -0500 | [diff] [blame] | 19 | #include <linux/ipc.h> |
Darrel Goeddel | 376bd9c | 2006-02-24 15:44:05 -0600 | [diff] [blame] | 20 | |
| 21 | #include "security.h" |
| 22 | #include "objsec.h" |
| 23 | |
| 24 | void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid) |
| 25 | { |
| 26 | struct task_security_struct *tsec = tsk->security; |
| 27 | if (selinux_enabled) |
| 28 | *ctxid = tsec->sid; |
| 29 | else |
| 30 | *ctxid = 0; |
| 31 | } |
Steve Grubb | 1b50eed | 2006-04-03 14:06:13 -0400 | [diff] [blame] | 32 | |
| 33 | int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen) |
| 34 | { |
| 35 | if (selinux_enabled) |
| 36 | return security_sid_to_context(ctxid, ctx, ctxlen); |
| 37 | else { |
| 38 | *ctx = NULL; |
| 39 | *ctxlen = 0; |
| 40 | } |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | void selinux_get_inode_sid(const struct inode *inode, u32 *sid) |
| 46 | { |
| 47 | if (selinux_enabled) { |
| 48 | struct inode_security_struct *isec = inode->i_security; |
| 49 | *sid = isec->sid; |
| 50 | return; |
| 51 | } |
| 52 | *sid = 0; |
| 53 | } |
| 54 | |
Steve Grubb | 9c7aa6a | 2006-03-31 15:22:49 -0500 | [diff] [blame] | 55 | void selinux_get_ipc_sid(const struct kern_ipc_perm *ipcp, u32 *sid) |
| 56 | { |
| 57 | if (selinux_enabled) { |
| 58 | struct ipc_security_struct *isec = ipcp->security; |
| 59 | *sid = isec->sid; |
| 60 | return; |
| 61 | } |
| 62 | *sid = 0; |
| 63 | } |
| 64 | |
Steve Grubb | e7c3497 | 2006-04-03 09:08:13 -0400 | [diff] [blame] | 65 | void selinux_get_task_sid(struct task_struct *tsk, u32 *sid) |
| 66 | { |
| 67 | if (selinux_enabled) { |
| 68 | struct task_security_struct *tsec = tsk->security; |
| 69 | *sid = tsec->sid; |
| 70 | return; |
| 71 | } |
| 72 | *sid = 0; |
| 73 | } |
| 74 | |