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authorEric W. Biederman <ebiederm@xmission.com>2018-03-22 21:22:26 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-03-22 21:22:26 -0500
commitd8c6e8543294428426578d74dc7aaf121e762d58 (patch)
tree5a7fb08578f66f55f030e7fd1de237e5f756a847 /security/smack/smack_lsm.c
parent7191adff2a5566efb139c79ea03eda3d0520d44a (diff)
downloadlinux-d8c6e8543294428426578d74dc7aaf121e762d58.tar.gz
msg/security: Pass kern_ipc_perm not msg_queue into the msg_queue security hooks
All of the implementations of security hooks that take msg_queue only access q_perm the struct kern_ipc_perm member. This means the dependencies of the msg_queue security hooks can be simplified by passing the kern_ipc_perm member of msg_queue. Making this change will allow struct msg_queue to become private to ipc/msg.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.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index a3398c7f32c9..d960c2ea8d79 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3210,9 +3210,9 @@ static int smack_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
*
* Returns 0
*/
-static int smack_msg_queue_alloc_security(struct msg_queue *msq)
+static int smack_msg_queue_alloc_security(struct kern_ipc_perm *msq)
{
- struct kern_ipc_perm *kisp = &msq->q_perm;
+ struct kern_ipc_perm *kisp = msq;
struct smack_known *skp = smk_of_current();
kisp->security = skp;
@@ -3225,9 +3225,9 @@ static int smack_msg_queue_alloc_security(struct msg_queue *msq)
*
* Clears the blob pointer
*/
-static void smack_msg_queue_free_security(struct msg_queue *msq)
+static void smack_msg_queue_free_security(struct kern_ipc_perm *msq)
{
- struct kern_ipc_perm *kisp = &msq->q_perm;
+ struct kern_ipc_perm *kisp = msq;
kisp->security = NULL;
}
@@ -3238,9 +3238,9 @@ static void smack_msg_queue_free_security(struct msg_queue *msq)
*
* Returns a pointer to the smack label entry
*/
-static struct smack_known *smack_of_msq(struct msg_queue *msq)
+static struct smack_known *smack_of_msq(struct kern_ipc_perm *msq)
{
- return (struct smack_known *)msq->q_perm.security;
+ return (struct smack_known *)msq->security;
}
/**
@@ -3250,7 +3250,7 @@ static struct smack_known *smack_of_msq(struct msg_queue *msq)
*
* return 0 if current has access, error otherwise
*/
-static int smk_curacc_msq(struct msg_queue *msq, int access)
+static int smk_curacc_msq(struct kern_ipc_perm *msq, int access)
{
struct smack_known *msp = smack_of_msq(msq);
struct smk_audit_info ad;
@@ -3258,7 +3258,7 @@ static int smk_curacc_msq(struct msg_queue *msq, int access)
#ifdef CONFIG_AUDIT
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
- ad.a.u.ipc_id = msq->q_perm.id;
+ ad.a.u.ipc_id = msq->id;
#endif
rc = smk_curacc(msp, access, &ad);
rc = smk_bu_current("msq", msp, access, rc);
@@ -3272,7 +3272,7 @@ static int smk_curacc_msq(struct msg_queue *msq, int access)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_msg_queue_associate(struct msg_queue *msq, int msqflg)
+static int smack_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg)
{
int may;
@@ -3287,7 +3287,7 @@ static int smack_msg_queue_associate(struct msg_queue *msq, int msqflg)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_msg_queue_msgctl(struct msg_queue *msq, int cmd)
+static int smack_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
{
int may;
@@ -3321,7 +3321,7 @@ static int smack_msg_queue_msgctl(struct msg_queue *msq, int cmd)
*
* Returns 0 if current has the requested access, error code otherwise
*/
-static int smack_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
+static int smack_msg_queue_msgsnd(struct kern_ipc_perm *msq, struct msg_msg *msg,
int msqflg)
{
int may;
@@ -3340,7 +3340,7 @@ static int smack_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
*
* Returns 0 if current has read and write access, error code otherwise
*/
-static int smack_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
+static int smack_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
struct task_struct *target, long type, int mode)
{
return smk_curacc_msq(msq, MAY_READWRITE);