From: "Ahmed S. Darwish" <darwish.07@gmail.com>
To: Chris Wright <chrisw@sous-sol.org>,
Stephen Smalley <sds@tycho.nsa.gov>,
James Morris <jmorris@namei.org>,
Eric Paris <eparis@parisplace.org>,
Casey Schaufler <casey@schaufler-ca.com>,
David Woodhouse <dwmw2@infradead.org>,
Paul Moore <paul.moore@hp.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Audit-ML <linux-audit@redhat.com>,
LSM-ML <linux-security-module@vger.kernel.org>
Subject: [PATCH 5/9] SELinux: remove redundant exports
Date: Sat, 1 Mar 2008 21:58:32 +0200 [thread overview]
Message-ID: <20080301195832.GF19636@ubuntu> (raw)
In-Reply-To: <20080301194752.GA19636@ubuntu>
Remove the following exported SELinux interfaces:
selinux_get_inode_sid(inode, sid)
selinux_get_ipc_sid(ipcp, sid)
selinux_get_task_sid(tsk, sid)
selinux_sid_to_string(sid, ctx, len)
They can be substitued with the following generic equivalents
respectively:
new LSM hook, inode_getsecid(inode, secid)
new LSM hook, ipc_getsecid*(ipcp, secid)
LSM hook, task_getsecid(tsk, secid)
LSM hook, sid_to_secctx(sid, ctx, len)
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
---
include/linux/selinux.h | 62 ---------------------------------------------
security/selinux/exports.c | 42 ------------------------------
2 files changed, 104 deletions(-)
diff --git a/include/linux/selinux.h b/include/linux/selinux.h
index 8c2cc4c..24b0af1 100644
--- a/include/linux/selinux.h
+++ b/include/linux/selinux.h
@@ -16,7 +16,6 @@
struct selinux_audit_rule;
struct audit_context;
-struct inode;
struct kern_ipc_perm;
#ifdef CONFIG_SECURITY_SELINUX
@@ -70,45 +69,6 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op,
void selinux_audit_set_callback(int (*callback)(void));
/**
- * selinux_sid_to_string - map a security context ID to a string
- * @sid: security context ID to be converted.
- * @ctx: address of context string to be returned
- * @ctxlen: length of returned context string.
- *
- * Returns 0 if successful, -errno if not. On success, the context
- * string will be allocated internally, and the caller must call
- * kfree() on it after use.
- */
-int selinux_sid_to_string(u32 sid, char **ctx, u32 *ctxlen);
-
-/**
- * selinux_get_inode_sid - get the inode's security context ID
- * @inode: inode structure to get the sid from.
- * @sid: pointer to security context ID to be filled in.
- *
- * Returns nothing
- */
-void selinux_get_inode_sid(const struct inode *inode, u32 *sid);
-
-/**
- * selinux_get_ipc_sid - get the ipc security context ID
- * @ipcp: ipc structure to get the sid from.
- * @sid: pointer to security context ID to be filled in.
- *
- * Returns nothing
- */
-void selinux_get_ipc_sid(const struct kern_ipc_perm *ipcp, u32 *sid);
-
-/**
- * selinux_get_task_sid - return the SID of task
- * @tsk: the task whose SID will be returned
- * @sid: pointer to security context ID to be filled in.
- *
- * Returns nothing
- */
-void selinux_get_task_sid(struct task_struct *tsk, u32 *sid);
-
-/**
* selinux_string_to_sid - map a security context string to a security ID
* @str: the security context string to be mapped
* @sid: ID value returned via this.
@@ -175,28 +135,6 @@ static inline void selinux_audit_set_callback(int (*callback)(void))
return;
}
-static inline int selinux_sid_to_string(u32 sid, char **ctx, u32 *ctxlen)
-{
- *ctx = NULL;
- *ctxlen = 0;
- return 0;
-}
-
-static inline void selinux_get_inode_sid(const struct inode *inode, u32 *sid)
-{
- *sid = 0;
-}
-
-static inline void selinux_get_ipc_sid(const struct kern_ipc_perm *ipcp, u32 *sid)
-{
- *sid = 0;
-}
-
-static inline void selinux_get_task_sid(struct task_struct *tsk, u32 *sid)
-{
- *sid = 0;
-}
-
static inline int selinux_string_to_sid(const char *str, u32 *sid)
{
*sid = 0;
diff --git a/security/selinux/exports.c b/security/selinux/exports.c
index 87d2bb3..64af2d3 100644
--- a/security/selinux/exports.c
+++ b/security/selinux/exports.c
@@ -25,48 +25,6 @@
/* SECMARK reference count */
extern atomic_t selinux_secmark_refcount;
-int selinux_sid_to_string(u32 sid, char **ctx, u32 *ctxlen)
-{
- if (selinux_enabled)
- return security_sid_to_context(sid, ctx, ctxlen);
- else {
- *ctx = NULL;
- *ctxlen = 0;
- }
-
- return 0;
-}
-
-void selinux_get_inode_sid(const struct inode *inode, u32 *sid)
-{
- if (selinux_enabled) {
- struct inode_security_struct *isec = inode->i_security;
- *sid = isec->sid;
- return;
- }
- *sid = 0;
-}
-
-void selinux_get_ipc_sid(const struct kern_ipc_perm *ipcp, u32 *sid)
-{
- if (selinux_enabled) {
- struct ipc_security_struct *isec = ipcp->security;
- *sid = isec->sid;
- return;
- }
- *sid = 0;
-}
-
-void selinux_get_task_sid(struct task_struct *tsk, u32 *sid)
-{
- if (selinux_enabled) {
- struct task_security_struct *tsec = tsk->security;
- *sid = tsec->sid;
- return;
- }
- *sid = 0;
-}
-
int selinux_string_to_sid(char *str, u32 *sid)
{
if (selinux_enabled)
--
"Better to light a candle, than curse the darkness"
Ahmed S. Darwish
Homepage: http://darwish.07.googlepages.com
Blog: http://darwish-07.blogspot.com
next prev parent reply other threads:[~2008-03-01 20:01 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-01 19:47 [PATCH-v2 -mm 0/9] LSM-neutral Audit (SELinux audit separation) Ahmed S. Darwish
2008-03-01 19:51 ` [PATCH 1/9] LSM: Introduce inode_getsecid and ipc_getsecid hooks Ahmed S. Darwish
2008-03-03 21:18 ` James Morris
2008-03-03 23:26 ` Paul Moore
2008-03-01 19:52 ` [PATCH 2/9] SELinux: setup new inode/ipc getsecid hooks Ahmed S. Darwish
2008-03-03 21:19 ` James Morris
2008-03-03 23:25 ` Paul Moore
2008-03-01 19:54 ` [PATCH 3/9] Audit: use new LSM hooks instead of SELinux exports Ahmed S. Darwish
2008-03-03 21:19 ` James Morris
2008-03-03 23:31 ` Paul Moore
2008-03-01 19:56 ` [PATCH 4/9] Netlink: Use generic LSM hook Ahmed S. Darwish
2008-03-03 21:19 ` James Morris
2008-03-03 21:30 ` David Miller
2008-03-03 23:33 ` Paul Moore
2008-03-01 19:58 ` Ahmed S. Darwish [this message]
2008-03-03 21:20 ` [PATCH 5/9] SELinux: remove redundant exports James Morris
2008-03-03 23:41 ` Paul Moore
2008-03-01 20:00 ` [PATCH 6/9] LSM/Audit: Introduce generic Audit LSM hooks Ahmed S. Darwish
2008-03-03 21:20 ` James Morris
2008-03-03 23:36 ` Paul Moore
2008-03-01 20:01 ` [PATCH 7/9] Audit: internally use the new LSM audit hooks Ahmed S. Darwish
2008-03-03 21:20 ` James Morris
2008-03-03 23:51 ` Paul Moore
2008-03-04 3:31 ` Ahmed S. Darwish
2008-03-04 4:09 ` James Morris
2008-03-04 4:15 ` James Morris
2008-03-01 20:03 ` [PATCH 8/9] SELinux: use new audit hooks, remove redundant exports Ahmed S. Darwish
2008-03-03 21:20 ` James Morris
2008-03-01 20:05 ` [PATCH 9/9] Audit: Final renamings and cleanup Ahmed S. Darwish
2008-03-03 21:21 ` James Morris
2008-03-05 5:29 ` [PATCH-v2 -mm 0/9] LSM-neutral Audit (SELinux audit separation) James Morris
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