xref: /xnu-10002.81.5/libsyscall/wrappers/open_dprotected_np.c (revision 5e3eaea39dcf651e66cb99ba7d70e32cc4a99587)
1*5e3eaea3SApple OSS Distributions /*
2*5e3eaea3SApple OSS Distributions  * Copyright (c) 2011 Apple Inc. All rights reserved.
3*5e3eaea3SApple OSS Distributions  *
4*5e3eaea3SApple OSS Distributions  * @APPLE_LICENSE_HEADER_START@
5*5e3eaea3SApple OSS Distributions  *
6*5e3eaea3SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*5e3eaea3SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*5e3eaea3SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*5e3eaea3SApple OSS Distributions  * compliance with the License. Please obtain a copy of the License at
10*5e3eaea3SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this
11*5e3eaea3SApple OSS Distributions  * file.
12*5e3eaea3SApple OSS Distributions  *
13*5e3eaea3SApple OSS Distributions  * The Original Code and all software distributed under the License are
14*5e3eaea3SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15*5e3eaea3SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16*5e3eaea3SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17*5e3eaea3SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18*5e3eaea3SApple OSS Distributions  * Please see the License for the specific language governing rights and
19*5e3eaea3SApple OSS Distributions  * limitations under the License.
20*5e3eaea3SApple OSS Distributions  *
21*5e3eaea3SApple OSS Distributions  * @APPLE_LICENSE_HEADER_END@
22*5e3eaea3SApple OSS Distributions  */
23*5e3eaea3SApple OSS Distributions #include <sys/cdefs.h>
24*5e3eaea3SApple OSS Distributions #include <sys/types.h>
25*5e3eaea3SApple OSS Distributions #include <stdarg.h>
26*5e3eaea3SApple OSS Distributions #include <sys/fcntl.h>
27*5e3eaea3SApple OSS Distributions #include <sys/errno.h>
28*5e3eaea3SApple OSS Distributions #include <sys/content_protection.h>
29*5e3eaea3SApple OSS Distributions 
30*5e3eaea3SApple OSS Distributions int __open_dprotected_np(const char* path, int flags, int class, int dpflags, int mode);
31*5e3eaea3SApple OSS Distributions int __openat_dprotected_np(int fd, const char* path, int flags, int class, int dpflags, int mode, int authfd);
32*5e3eaea3SApple OSS Distributions 
33*5e3eaea3SApple OSS Distributions int
open_dprotected_np(const char * path,int flags,int class,int dpflags,...)34*5e3eaea3SApple OSS Distributions open_dprotected_np(const char *path, int flags, int class, int dpflags, ...)
35*5e3eaea3SApple OSS Distributions {
36*5e3eaea3SApple OSS Distributions 	int mode = 0;
37*5e3eaea3SApple OSS Distributions 
38*5e3eaea3SApple OSS Distributions 	if (dpflags & O_DP_AUTHENTICATE) {
39*5e3eaea3SApple OSS Distributions 		errno = EINVAL;
40*5e3eaea3SApple OSS Distributions 		return -1;
41*5e3eaea3SApple OSS Distributions 	}
42*5e3eaea3SApple OSS Distributions 
43*5e3eaea3SApple OSS Distributions 	if (flags & O_CREAT) {
44*5e3eaea3SApple OSS Distributions 		va_list ap;
45*5e3eaea3SApple OSS Distributions 		va_start(ap, dpflags);
46*5e3eaea3SApple OSS Distributions 		mode = va_arg(ap, int);
47*5e3eaea3SApple OSS Distributions 		va_end(ap);
48*5e3eaea3SApple OSS Distributions 	}
49*5e3eaea3SApple OSS Distributions 	return __open_dprotected_np(path, flags, class, dpflags, mode);
50*5e3eaea3SApple OSS Distributions }
51*5e3eaea3SApple OSS Distributions 
52*5e3eaea3SApple OSS Distributions int
openat_dprotected_np(int fd,const char * path,int flags,int class,int dpflags,...)53*5e3eaea3SApple OSS Distributions openat_dprotected_np(int fd, const char *path, int flags, int class, int dpflags, ...)
54*5e3eaea3SApple OSS Distributions {
55*5e3eaea3SApple OSS Distributions 	int mode = 0;
56*5e3eaea3SApple OSS Distributions 
57*5e3eaea3SApple OSS Distributions 	if (dpflags & O_DP_AUTHENTICATE) {
58*5e3eaea3SApple OSS Distributions 		errno = EINVAL;
59*5e3eaea3SApple OSS Distributions 		return -1;
60*5e3eaea3SApple OSS Distributions 	}
61*5e3eaea3SApple OSS Distributions 
62*5e3eaea3SApple OSS Distributions 	if (flags & O_CREAT) {
63*5e3eaea3SApple OSS Distributions 		va_list ap;
64*5e3eaea3SApple OSS Distributions 		va_start(ap, dpflags);
65*5e3eaea3SApple OSS Distributions 		mode = va_arg(ap, int);
66*5e3eaea3SApple OSS Distributions 		va_end(ap);
67*5e3eaea3SApple OSS Distributions 	}
68*5e3eaea3SApple OSS Distributions 	return __openat_dprotected_np(fd, path, flags, class, dpflags, mode, AUTH_OPEN_NOAUTHFD);
69*5e3eaea3SApple OSS Distributions }
70*5e3eaea3SApple OSS Distributions 
71*5e3eaea3SApple OSS Distributions int
openat_authenticated_np(int fd,const char * path,int flags,int authfd)72*5e3eaea3SApple OSS Distributions openat_authenticated_np(int fd, const char *path, int flags, int authfd)
73*5e3eaea3SApple OSS Distributions {
74*5e3eaea3SApple OSS Distributions 	if (flags & O_CREAT) {
75*5e3eaea3SApple OSS Distributions 		errno = EINVAL;
76*5e3eaea3SApple OSS Distributions 		return -1;
77*5e3eaea3SApple OSS Distributions 	}
78*5e3eaea3SApple OSS Distributions 
79*5e3eaea3SApple OSS Distributions 	if ((authfd != AUTH_OPEN_NOAUTHFD) && (authfd < 0)) {
80*5e3eaea3SApple OSS Distributions 		errno = EBADF;
81*5e3eaea3SApple OSS Distributions 		return -1;
82*5e3eaea3SApple OSS Distributions 	}
83*5e3eaea3SApple OSS Distributions 
84*5e3eaea3SApple OSS Distributions 	return __openat_dprotected_np(fd, path, flags, PROTECTION_CLASS_DEFAULT, O_DP_AUTHENTICATE, 0, authfd);
85*5e3eaea3SApple OSS Distributions }
86