X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/91447636331957f3d9b5ca5b508f07c526b0074d..4a3eedf9ecc9bbe3f3a5c6ce5e53ad199d639d32:/osfmk/mach/message.h diff --git a/osfmk/mach/message.h b/osfmk/mach/message.h index 77f71a4e1..37c9aa3be 100644 --- a/osfmk/mach/message.h +++ b/osfmk/mach/message.h @@ -1,23 +1,29 @@ /* * Copyright (c) 2000-2005 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@ */ /* * @OSF_COPYRIGHT@ @@ -47,6 +53,13 @@ * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ +/* + * NOTICE: This file was modified by McAfee Research in 2004 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. + * Copyright (c) 2005 SPARTA, Inc. + */ /* */ /* @@ -373,6 +386,27 @@ typedef struct audit_token_t msgh_audit; } mach_msg_audit_trailer_t; +typedef struct +{ + mach_port_name_t sender; +} msg_labels_t; + +/* + Trailer type to pass MAC policy label info as a mach message trailer. + +*/ + +typedef struct +{ + mach_msg_trailer_type_t msgh_trailer_type; + mach_msg_trailer_size_t msgh_trailer_size; + mach_port_seqno_t msgh_seqno; + security_token_t msgh_sender; + audit_token_t msgh_audit; + msg_labels_t msgh_labels; + int msgh_ad; +} mach_msg_mac_trailer_t; + #define MACH_MSG_TRAILER_MINIMUM_SIZE sizeof(mach_msg_trailer_t) /* @@ -384,7 +418,7 @@ typedef struct * another module may exceed the local modules notion of * MAX_TRAILER_SIZE. */ -typedef mach_msg_audit_trailer_t mach_msg_max_trailer_t; +typedef mach_msg_mac_trailer_t mach_msg_max_trailer_t; #define MAX_TRAILER_SIZE sizeof(mach_msg_max_trailer_t) /* @@ -395,6 +429,10 @@ typedef mach_msg_audit_trailer_t mach_msg_max_trailer_t; * REQUESTED_TRAILER_SIZE. */ typedef mach_msg_security_trailer_t mach_msg_format_0_trailer_t; + +/*typedef mach_msg_mac_trailer_t mach_msg_format_0_trailer_t; +*/ + #define MACH_MSG_TRAILER_FORMAT_0_SIZE sizeof(mach_msg_format_0_trailer_t) #define KERNEL_SECURITY_TOKEN_VALUE { {0, 1} } @@ -535,17 +573,33 @@ typedef integer_t mach_msg_option_t; * NOTE: a 0x00------ RCV mask implies to ask for * a MACH_MSG_TRAILER_FORMAT_0 with 0 Elements, * which is equivalent to a mach_msg_trailer_t. + * + * XXXMAC: unlike the rest of the MACH_RCV_* flags, MACH_RCV_TRAILER_LABELS + * and MACH_RCV_TRAILER_AV need their own private bit since we only calculate + * their fields when absolutely required. This will cause us problems if + * Apple adds new trailers. */ #define MACH_RCV_TRAILER_NULL 0 #define MACH_RCV_TRAILER_SEQNO 1 #define MACH_RCV_TRAILER_SENDER 2 #define MACH_RCV_TRAILER_AUDIT 3 +#define MACH_RCV_TRAILER_LABELS 4 +#define MACH_RCV_TRAILER_AV 8 #define MACH_RCV_TRAILER_TYPE(x) (((x) & 0xf) << 28) #define MACH_RCV_TRAILER_ELEMENTS(x) (((x) & 0xf) << 24) #define MACH_RCV_TRAILER_MASK ((0xff << 24)) #define GET_RCV_ELEMENTS(y) (((y) >> 24) & 0xf) + +/* + * XXXMAC: note that in the case of MACH_RCV_TRAILER_AV and + * MACH_RCV_TRAILER_LABELS, we just fall through to mach_msg_max_trailer_t. + * This is correct behavior since mach_msg_max_trailer_t is defined as + * mac_msg_mac_trailer_t which is used for the LABELS and AV trailers. + * It also makes things work properly if MACH_RCV_TRAILER_AV or + * MACH_RCV_TRAILER_LABELS are ORed with one of the other options. + */ #define REQUESTED_TRAILER_SIZE(y) \ ((mach_msg_trailer_size_t) \ ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_NULL) ? \ @@ -554,7 +608,10 @@ typedef integer_t mach_msg_option_t; sizeof(mach_msg_seqno_trailer_t) : \ ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_SENDER) ? \ sizeof(mach_msg_security_trailer_t) : \ - sizeof(mach_msg_audit_trailer_t))))) + ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_AUDIT) ? \ + sizeof(mach_msg_audit_trailer_t) : \ + sizeof(mach_msg_max_trailer_t)))))) + /* * Much code assumes that mach_msg_return_t == kern_return_t. * This definition is useful for descriptive purposes. @@ -703,3 +760,4 @@ extern mach_msg_return_t mach_msg( __END_DECLS #endif /* _MACH_MESSAGE_H_ */ +