xnu-1504.9.17.tar.gz

[apple/xnu.git] / bsd / kern / sysv_ipc.c

diff --git a/bsd/kern/sysv_ipc.c b/bsd/kern/sysv_ipc.c
index e39505b702471352413f09c0e36e7330a4e01613..95c23d418efb580d09459b9b0e3d319b5e31eac3 100644 (file)
--- a/bsd/kern/sysv_ipc.c
+++ b/bsd/kern/sysv_ipc.c
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*     $NetBSD: sysv_ipc.c,v 1.7 1994/06/29 06:33:11 cgd Exp $ */
 
@@ -55,6 +61,7 @@
 #include <sys/param.h>
 #include <sys/ipc.h>
 #include <sys/ucred.h>
+#include <sys/kauth.h>
 
 
 /*
@@ -64,96 +71,35 @@
  * XXX: proc->p_acflag to suser()
  */
 
+/*
+ * Returns:    0                       Success
+ *             EPERM
+ *             EACCES
+ */
 int
-ipcperm(cred, perm, mode)
-       struct ucred *cred;
-       struct ipc_perm *perm;
-       int mode;
+ipcperm(kauth_cred_t cred, struct ipc_perm *perm, int mode)
 {
 
        if (!suser(cred, (u_short *)NULL))
                return (0);
 
        /* Check for user match. */
-       if (cred->cr_uid != perm->cuid && cred->cr_uid != perm->uid) {
+       if (kauth_cred_getuid(cred) != perm->cuid && kauth_cred_getuid(cred) != perm->uid) {
+               int is_member;
+
                if (mode & IPC_M)
                        return (EPERM);
                /* Check for group match. */
                mode >>= 3;
-               if (!groupmember(perm->gid, cred) &&
-                   !groupmember(perm->cgid, cred))
+               if ((kauth_cred_ismember_gid(cred, perm->gid, &is_member) || !is_member) &&
+                   (kauth_cred_ismember_gid(cred, perm->cgid, &is_member) || !is_member)) {
                        /* Check for `other' match. */
                        mode >>= 3;
        }
+       }
 
        if (mode & IPC_M)
                return (0);
+
        return ((mode & perm->mode) == mode ? 0 : EACCES);
 }
-
-
-
-/*
- * SYSVMSG stubs
- */
-
-int
-msgsys(p, uap)
-       struct proc *p;
-       /* XXX actually varargs. */
-#if 0
-       struct msgsys_args *uap;
-#else
-       void *uap;
-#endif
-{
-       return(EOPNOTSUPP);
-};
-
-int
-msgctl(p, uap)
-       struct proc *p;
-#if 0
-       register struct msgctl_args *uap;
-#else
-       void *uap;
-#endif
-{
-       return(EOPNOTSUPP);
-};
-
-int
-msgget(p, uap)
-       struct proc *p;
-#if 0
-       register struct msgget_args *uap;
-#else
-       void *uap;
-#endif
-{
-       return(EOPNOTSUPP);
-};
-
-int
-msgsnd(p, uap)
-       struct proc *p;
-#if 0
-       register struct msgsnd_args *uap;
-#else
-       void *uap;
-#endif
-{
-       return(EOPNOTSUPP);
-};
-
-int
-msgrcv(p, uap)
-       struct proc *p;
-#if 0
-       register struct msgrcv_args *uap;
-#else
-       void *uap;
-#endif
-{
-       return(EOPNOTSUPP);
-};