xiaomi-sm8450/android_kernel_xiaomi_sm8450
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msg/security: Pass kern_ipc_perm not msg_queue into the msg_queue security hooks

Pārlūkot izejas kodu 
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>
Šī revīzija ir iekļauta:
Eric W. Biederman
2018-03-22 21:22:26 -05:00
vecāks 7191adff2a
revīzija d8c6e85432
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24
security/smack/smack_lsm.c
Parādīt failu

@@ -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);