X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/9bccf70c0258c7cac2dcb80011b2a964d884c552..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/bsd/sys/ucred.h diff --git a/bsd/sys/ucred.h b/bsd/sys/ucred.h index 0c5032116..6d914a4df 100644 --- a/bsd/sys/ucred.h +++ b/bsd/sys/ucred.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2004 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@ */ /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */ /* @@ -54,40 +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 +#include #include +#include + +struct label; #ifdef __APPLE_API_UNSTABLE +#include + /* - * 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 */ + +/* + * 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 */ -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)); +#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 */