X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/bsd/sys/ucred.h

diff --git a/bsd/sys/ucred.h b/bsd/sys/ucred.h
index 23e739a7f..6d914a4df 100644
--- a/bsd/sys/ucred.h
+++ b/bsd/sys/ucred.h
@@ -1,16 +1,19 @@
 /*
- * 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
@@ -20,7 +23,7 @@
  * 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 */
 /*
@@ -57,40 +60,100 @@
  *
  *	@(#)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		is_suser(void);
+int		is_suser1(void);
+int		set_security_token(struct proc * p);
+void		cru2x(kauth_cred_t cr, struct xucred *xcr);
+__END_DECLS
+#endif /* __APPLE_API_OBSOLETE */
 #endif /* KERNEL */
 #endif /* __APPLE_API_UNSTABLE */