/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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.
+ *
+ * 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
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
/*
*
* @(#)ucred.h 8.4 (Berkeley) 1/9/95
*/
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
#ifndef _SYS_UCRED_H_
#define _SYS_UCRED_H_
#include <sys/appleapiopts.h>
+#include <sys/cdefs.h>
#include <sys/param.h>
+#include <bsm/audit.h>
+
+struct label;
#ifdef __APPLE_API_UNSTABLE
+#include <sys/queue.h>
+
/*
- * Credentials.
+ * In-kernel credential structure.
+ *
+ * Note that this structure should not be used outside the kernel, nor should
+ * it or copies of it be exported outside.
*/
struct ucred {
+ TAILQ_ENTRY(ucred) cr_link; /* never modify this without KAUTH_CRED_HASH_LOCK */
u_long cr_ref; /* reference count */
+
+struct posix_cred {
+ /*
+ * The credential hash depends on everything from this point on
+ * (see kauth_cred_get_hashkey)
+ */
uid_t cr_uid; /* effective user id */
- short cr_ngroups; /* number of groups */
- gid_t cr_groups[NGROUPS]; /* groups */
+ uid_t cr_ruid; /* real user id */
+ uid_t cr_svuid; /* saved user id */
+ short cr_ngroups; /* number of groups in advisory list */
+ gid_t cr_groups[NGROUPS]; /* advisory group list */
+ gid_t cr_rgid; /* real group id */
+ gid_t cr_svgid; /* saved group id */
+ uid_t cr_gmuid; /* UID for group membership purposes */
+ int cr_flags; /* flags on credential */
+} cr_posix;
+ struct label *cr_label; /* MAC label */
+ /*
+ * NOTE: If anything else (besides the flags)
+ * added after the label, you must change
+ * kauth_cred_find().
+ */
+ struct au_session cr_audit; /* user auditing data */
};
-#define cr_gid cr_groups[0]
-#define NOCRED ((struct ucred *)0) /* no credential available */
-#define FSCRED ((struct ucred *)-1) /* filesystem credential */
+#ifndef _KAUTH_CRED_T
+#define _KAUTH_CRED_T
+typedef struct ucred *kauth_cred_t;
+typedef struct posix_cred *posix_cred_t;
+#endif /* !_KAUTH_CRED_T */
-#ifdef KERNEL
-#define crhold(cr) \
-{ \
- if (++(cr)->cr_ref == 0) \
- panic("crhold"); \
-}
+/*
+ * Credential flags that can be set on a credential
+ */
+#define CRF_NOMEMBERD 0x00000001 /* memberd opt out by setgroups() */
+#define CRF_MAC_ENFORCE 0x00000002 /* force entry through MAC Framework */
+ /* also forces credential cache miss */
-struct ucred *crcopy __P((struct ucred *cr));
-struct ucred *crdup __P((struct ucred *cr));
-void crfree __P((struct ucred *cr));
-struct ucred *crget __P((void));
-int suser __P((struct ucred *cred, u_short *acflag));
+/*
+ * This is the external representation of struct ucred.
+ */
+struct xucred {
+ u_int cr_version; /* structure layout version */
+ uid_t cr_uid; /* effective user id */
+ short cr_ngroups; /* number of advisory groups */
+ gid_t cr_groups[NGROUPS]; /* advisory group list */
+};
+#define XUCRED_VERSION 0
+#define cr_gid cr_groups[0]
+#define NOCRED ((kauth_cred_t )0) /* no credential available */
+#define FSCRED ((kauth_cred_t )-1) /* filesystem credential */
+
+#define IS_VALID_CRED(_cr) ((_cr) != NOCRED && (_cr) != FSCRED)
+
+#ifdef KERNEL
+#ifdef __APPLE_API_OBSOLETE
+__BEGIN_DECLS
+int crcmp(kauth_cred_t cr1, kauth_cred_t cr2);
+int suser(kauth_cred_t cred, u_short *acflag);
+int set_security_token(struct proc * p);
+int set_security_token_task_internal(struct proc *p, void *task);
+void cru2x(kauth_cred_t cr, struct xucred *xcr);
+__END_DECLS
+#endif /* __APPLE_API_OBSOLETE */
#endif /* KERNEL */
#endif /* __APPLE_API_UNSTABLE */
projects / apple / xnu.git / blobdiff