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authorEric W. Biederman <ebiederm@xmission.com>2018-03-22 21:08:27 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-03-22 21:08:27 -0500
commit7191adff2a5566efb139c79ea03eda3d0520d44a (patch)
treebfde0d973881cfaa21e9993b290de4ca9c5bbe4b /security/smack/smack_lsm.c
parentaefad9593ec5ad4aae5346253a8b646364cd7317 (diff)
downloadlinux-7191adff2a5566efb139c79ea03eda3d0520d44a.tar.gz
shm/security: Pass kern_ipc_perm not shmid_kernel into the shm security hooks
All of the implementations of security hooks that take shmid_kernel only access shm_perm the struct kern_ipc_perm member. This means the dependencies of the shm security hooks can be simplified by passing the kern_ipc_perm member of shmid_kernel.. Making this change will allow struct shmid_kernel to become private to ipc/shm.c. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'security/smack/smack_lsm.c')
-rw-r--r--security/smack/smack_lsm.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 0402b8c1aec1..a3398c7f32c9 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -2950,9 +2950,9 @@ static void smack_msg_msg_free_security(struct msg_msg *msg)
*
* Returns a pointer to the smack value
*/
-static struct smack_known *smack_of_shm(struct shmid_kernel *shp)
+static struct smack_known *smack_of_shm(struct kern_ipc_perm *shp)
{
- return (struct smack_known *)shp->shm_perm.security;
+ return (struct smack_known *)shp->security;
}
/**
@@ -2961,9 +2961,9 @@ static struct smack_known *smack_of_shm(struct shmid_kernel *shp)
*
* Returns 0
*/
-static int smack_shm_alloc_security(struct shmid_kernel *shp)
+static int smack_shm_alloc_security(struct kern_ipc_perm *shp)
{
- struct kern_ipc_perm *isp = &shp->shm_perm;
+ struct kern_ipc_perm *isp = shp;
struct smack_known *skp = smk_of_current();
isp->security = skp;
@@ -2976,9 +2976,9 @@ static int smack_shm_alloc_security(struct shmid_kernel *shp)
*
* Clears the blob pointer
*/
-static void smack_shm_free_security(struct shmid_kernel *shp)
+static void smack_shm_free_security(struct kern_ipc_perm *shp)
{
- struct kern_ipc_perm *isp = &shp->shm_perm;
+ struct kern_ipc_perm *isp = shp;
isp->security = NULL;
}
@@ -2990,7 +2990,7 @@ static void smack_shm_free_security(struct shmid_kernel *shp)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smk_curacc_shm(struct shmid_kernel *shp, int access)
+static int smk_curacc_shm(struct kern_ipc_perm *shp, int access)
{
struct smack_known *ssp = smack_of_shm(shp);
struct smk_audit_info ad;
@@ -2998,7 +2998,7 @@ static int smk_curacc_shm(struct shmid_kernel *shp, int access)
#ifdef CONFIG_AUDIT
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
- ad.a.u.ipc_id = shp->shm_perm.id;
+ ad.a.u.ipc_id = shp->id;
#endif
rc = smk_curacc(ssp, access, &ad);
rc = smk_bu_current("shm", ssp, access, rc);
@@ -3012,7 +3012,7 @@ static int smk_curacc_shm(struct shmid_kernel *shp, int access)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_shm_associate(struct shmid_kernel *shp, int shmflg)
+static int smack_shm_associate(struct kern_ipc_perm *shp, int shmflg)
{
int may;
@@ -3027,7 +3027,7 @@ static int smack_shm_associate(struct shmid_kernel *shp, int shmflg)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_shm_shmctl(struct shmid_kernel *shp, int cmd)
+static int smack_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
{
int may;
@@ -3062,7 +3062,7 @@ static int smack_shm_shmctl(struct shmid_kernel *shp, int cmd)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
+static int smack_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr,
int shmflg)
{
int may;