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[PATCH] SELinux: cleanup ipc_has_perm

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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handling in SELinux and is obsolete.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 <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stephen Smalley 2005-05-01 08:58:39 -07:00 committed by Linus Torvalds
parent de7d5a3b6c
commit 6af963f1d6
1 changed files with 8 additions and 13 deletions
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21
security/selinux/hooks.c
View file

@ -3667,7 +3667,7 @@ static void msg_msg_free_security(struct msg_msg *msg)
}
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;
@ -3679,7 +3679,7 @@ static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
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)
@ -3764,7 +3764,7 @@ static int selinux_msg_queue_msgctl(struct msg_queue *msq, int cmd)
return 0;
}
err = ipc_has_perm(&msq->q_perm, SECCLASS_MSGQ, perms);
err = ipc_has_perm(&msq->q_perm, perms);
return err;
}
@ -3916,7 +3916,7 @@ static int selinux_shm_shmctl(struct shmid_kernel *shp, int cmd)
return 0;
}
err = ipc_has_perm(&shp->shm_perm, SECCLASS_SHM, perms);
err = ipc_has_perm(&shp->shm_perm, perms);
return err;
}
@ -3935,7 +3935,7 @@ static int selinux_shm_shmat(struct shmid_kernel *shp,
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 */
@ -4024,7 +4024,7 @@ static int selinux_sem_semctl(struct sem_array *sma, int cmd)
return 0;
}
err = ipc_has_perm(&sma->sem_perm, SECCLASS_SEM, perms);
err = ipc_has_perm(&sma->sem_perm, perms);
return err;
}
@ -4038,18 +4038,13 @@ static int selinux_sem_semop(struct sem_array *sma,
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;
@ -4059,7 +4054,7 @@ static int selinux_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
if (av == 0)
return 0;
return ipc_has_perm(ipcp, sclass, av);
return ipc_has_perm(ipcp, av);
}
/* module stacking operations */