This patch removes the sclass argument from ipc_has_perm in the
SELinux module, as it can be obtained from the ipc security structure.
The use of a separate argument was a legacy of the older precondition
function handling in SELinux and is obsolete. Please apply.
Signed-off-by: Stephen Smalley <[email protected]>
Signed-off-by: James Morris <[email protected]>
---
security/selinux/hooks.c | 21 ++++++++-------------
1 files changed, 8 insertions(+), 13 deletions(-)
===== security/selinux/hooks.c 1.95 vs edited =====
--- 1.95/security/selinux/hooks.c 2005-04-01 16:30:16 -05:00
+++ edited/security/selinux/hooks.c 2005-04-08 10:37:42 -04:00
@@ -3666,7 +3666,7 @@ static void msg_msg_free_security(struct
}
static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
- u16 sclass, u32 perms)
+ u32 perms)
{
struct task_security_struct *tsec;
struct ipc_security_struct *isec;
@@ -3678,7 +3678,7 @@ static int ipc_has_perm(struct kern_ipc_
AVC_AUDIT_DATA_INIT(&ad, IPC);
ad.u.ipc_id = ipc_perms->key;
- return avc_has_perm(tsec->sid, isec->sid, sclass, perms, &ad);
+ return avc_has_perm(tsec->sid, isec->sid, isec->sclass, perms, &ad);
}
static int selinux_msg_msg_alloc_security(struct msg_msg *msg)
@@ -3763,7 +3763,7 @@ static int selinux_msg_queue_msgctl(stru
return 0;
}
- err = ipc_has_perm(&msq->q_perm, SECCLASS_MSGQ, perms);
+ err = ipc_has_perm(&msq->q_perm, perms);
return err;
}
@@ -3915,7 +3915,7 @@ static int selinux_shm_shmctl(struct shm
return 0;
}
- err = ipc_has_perm(&shp->shm_perm, SECCLASS_SHM, perms);
+ err = ipc_has_perm(&shp->shm_perm, perms);
return err;
}
@@ -3934,7 +3934,7 @@ static int selinux_shm_shmat(struct shmi
else
perms = SHM__READ | SHM__WRITE;
- return ipc_has_perm(&shp->shm_perm, SECCLASS_SHM, perms);
+ return ipc_has_perm(&shp->shm_perm, perms);
}
/* Semaphore security operations */
@@ -4023,7 +4023,7 @@ static int selinux_sem_semctl(struct sem
return 0;
}
- err = ipc_has_perm(&sma->sem_perm, SECCLASS_SEM, perms);
+ err = ipc_has_perm(&sma->sem_perm, perms);
return err;
}
@@ -4037,18 +4037,13 @@ static int selinux_sem_semop(struct sem_
else
perms = SEM__READ;
- return ipc_has_perm(&sma->sem_perm, SECCLASS_SEM, perms);
+ return ipc_has_perm(&sma->sem_perm, perms);
}
static int selinux_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
{
- struct ipc_security_struct *isec = ipcp->security;
- u16 sclass = SECCLASS_IPC;
u32 av = 0;
- if (isec && isec->magic == SELINUX_MAGIC)
- sclass = isec->sclass;
-
av = 0;
if (flag & S_IRUGO)
av |= IPC__UNIX_READ;
@@ -4058,7 +4053,7 @@ static int selinux_ipc_permission(struct
if (av == 0)
return 0;
- return ipc_has_perm(ipcp, sclass, av);
+ return ipc_has_perm(ipcp, av);
}
/* module stacking operations */
--
Stephen Smalley <[email protected]>
National Security Agency
-
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