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authorEric W. Biederman <ebiederm@xmission.com>2018-03-23 02:52:43 +0100
committerEric W. Biederman <ebiederm@xmission.com>2018-03-23 03:07:51 +0100
commitaefad9593ec5ad4aae5346253a8b646364cd7317 (patch)
tree98f72912460afef0280f96f14880a8219c615f65 /security/smack
parentpidns: simpler allocation of pid_* caches (diff)
downloadlinux-aefad9593ec5ad4aae5346253a8b646364cd7317.tar.xz
linux-aefad9593ec5ad4aae5346253a8b646364cd7317.zip
sem/security: Pass kern_ipc_perm not sem_array into the sem security hooks
All of the implementations of security hooks that take sem_array only access sem_perm the struct kern_ipc_perm member. This means the dependencies of the sem security hooks can be simplified by passing the kern_ipc_perm member of sem_array. Making this change will allow struct sem and struct sem_array to become private to ipc/sem.c. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'security/smack')
-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 03fdecba93bb..0402b8c1aec1 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3077,9 +3077,9 @@ static int smack_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
*
* Returns a pointer to the smack value
*/
-static struct smack_known *smack_of_sem(struct sem_array *sma)
+static struct smack_known *smack_of_sem(struct kern_ipc_perm *sma)
{
- return (struct smack_known *)sma->sem_perm.security;
+ return (struct smack_known *)sma->security;
}
/**
@@ -3088,9 +3088,9 @@ static struct smack_known *smack_of_sem(struct sem_array *sma)
*
* Returns 0
*/
-static int smack_sem_alloc_security(struct sem_array *sma)
+static int smack_sem_alloc_security(struct kern_ipc_perm *sma)
{
- struct kern_ipc_perm *isp = &sma->sem_perm;
+ struct kern_ipc_perm *isp = sma;
struct smack_known *skp = smk_of_current();
isp->security = skp;
@@ -3103,9 +3103,9 @@ static int smack_sem_alloc_security(struct sem_array *sma)
*
* Clears the blob pointer
*/
-static void smack_sem_free_security(struct sem_array *sma)
+static void smack_sem_free_security(struct kern_ipc_perm *sma)
{
- struct kern_ipc_perm *isp = &sma->sem_perm;
+ struct kern_ipc_perm *isp = sma;
isp->security = NULL;
}
@@ -3117,7 +3117,7 @@ static void smack_sem_free_security(struct sem_array *sma)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smk_curacc_sem(struct sem_array *sma, int access)
+static int smk_curacc_sem(struct kern_ipc_perm *sma, int access)
{
struct smack_known *ssp = smack_of_sem(sma);
struct smk_audit_info ad;
@@ -3125,7 +3125,7 @@ static int smk_curacc_sem(struct sem_array *sma, int access)
#ifdef CONFIG_AUDIT
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
- ad.a.u.ipc_id = sma->sem_perm.id;
+ ad.a.u.ipc_id = sma->id;
#endif
rc = smk_curacc(ssp, access, &ad);
rc = smk_bu_current("sem", ssp, access, rc);
@@ -3139,7 +3139,7 @@ static int smk_curacc_sem(struct sem_array *sma, int access)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_sem_associate(struct sem_array *sma, int semflg)
+static int smack_sem_associate(struct kern_ipc_perm *sma, int semflg)
{
int may;
@@ -3154,7 +3154,7 @@ static int smack_sem_associate(struct sem_array *sma, int semflg)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_sem_semctl(struct sem_array *sma, int cmd)
+static int smack_sem_semctl(struct kern_ipc_perm *sma, int cmd)
{
int may;
@@ -3198,7 +3198,7 @@ static int smack_sem_semctl(struct sem_array *sma, int cmd)
*
* Returns 0 if access is allowed, error code otherwise
*/
-static int smack_sem_semop(struct sem_array *sma, struct sembuf *sops,
+static int smack_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
unsigned nsops, int alter)
{
return smk_curacc_sem(sma, MAY_READWRITE);