1 | /* $NetBSD: verified_exec.h,v 1.58 2010/11/19 06:44:34 dholland Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2005, 2006 Elad Efrat <elad@NetBSD.org> |
5 | * Copyright (c) 2005, 2006 Brett Lymn <blymn@NetBSD.org> |
6 | * All rights reserved. |
7 | * |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions |
10 | * are met: |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
16 | * 3. The name of the authors may not be used to endorse or promote products |
17 | * derived from this software without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
20 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
21 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
22 | * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
24 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
28 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | */ |
30 | |
31 | #ifndef _SYS_VERIFIED_EXEC_H_ |
32 | #define _SYS_VERIFIED_EXEC_H_ |
33 | |
34 | #include <sys/ioccom.h> |
35 | |
36 | #if defined(_KERNEL) && !defined(HAVE_NBTOOL_CONFIG_H) |
37 | #include <sys/types.h> |
38 | #include <prop/proplib.h> |
39 | |
40 | struct mount; |
41 | struct vnode; |
42 | |
43 | #ifdef notyet |
44 | struct vm_page; |
45 | #endif /* notyet */ |
46 | #endif /* _KERNEL */ |
47 | |
48 | /* Flags for a Veriexec entry. These can be OR'd together. */ |
49 | #define VERIEXEC_DIRECT 0x01 /* Direct execution (exec) */ |
50 | #define VERIEXEC_INDIRECT 0x02 /* Indirect execution (#!) */ |
51 | #define VERIEXEC_FILE 0x04 /* Plain file (open) */ |
52 | #define VERIEXEC_UNTRUSTED 0x10 /* Untrusted storage */ |
53 | |
54 | /* Operations for the Veriexec pseudo-device. */ |
55 | #define VERIEXEC_LOAD _IOW('X', 0x1, struct plistref) |
56 | #define VERIEXEC_TABLESIZE _IOW('X', 0x2, struct plistref) |
57 | #define VERIEXEC_DELETE _IOW('X', 0x3, struct plistref) |
58 | #define VERIEXEC_QUERY _IOWR('X', 0x4, struct plistref) |
59 | #define VERIEXEC_DUMP _IOR('X', 0x5, struct plistref) |
60 | #define VERIEXEC_FLUSH _IO('X', 0x6) |
61 | |
62 | /* Veriexec modes (strict levels). */ |
63 | #define VERIEXEC_LEARNING 0 /* Learning mode. */ |
64 | #define VERIEXEC_IDS 1 /* Intrusion detection mode. */ |
65 | #define VERIEXEC_IPS 2 /* Intrusion prevention mode. */ |
66 | #define VERIEXEC_LOCKDOWN 3 /* Lockdown mode. */ |
67 | |
68 | /* Valid status field values. */ |
69 | #define FINGERPRINT_NOTEVAL 0 /* fingerprint has not been evaluated */ |
70 | #define FINGERPRINT_VALID 1 /* fingerprint evaluated and matches list */ |
71 | #define FINGERPRINT_NOMATCH 2 /* fingerprint evaluated but does not match */ |
72 | |
73 | /* Per-page fingerprint status. */ |
74 | #define PAGE_FP_NONE 0 /* no per-page fingerprints. */ |
75 | #define PAGE_FP_READY 1 /* per-page fingerprints ready for use. */ |
76 | #define PAGE_FP_FAIL 2 /* mismatch in per-page fingerprints. */ |
77 | |
78 | #if defined(_KERNEL) && !defined(HAVE_NBTOOL_CONFIG_H) |
79 | |
80 | #if NVERIEXEC > 0 |
81 | /* FUTURE: remove this macro entirely - dholland 20100215 */ |
82 | #define VERIEXEC_PATH_GET(from, cto, to) \ |
83 | do { \ |
84 | to = NULL; \ |
85 | cto = from; \ |
86 | } \ |
87 | } while (/*CONSTCOND*/0) |
88 | #define VERIEXEC_PATH_PUT(to) \ |
89 | do { \ |
90 | (void)(to); \ |
91 | } while (/*CONSTCOND*/0) |
92 | #else |
93 | #define VERIEXEC_PATH_GET(from, cto, to) \ |
94 | cto = from |
95 | #define VERIEXEC_PATH_PUT(to) \ |
96 | (void)to |
97 | |
98 | #endif |
99 | |
100 | /* |
101 | * Fingerprint operations vector for Veriexec. |
102 | * Function types: init, update, final. |
103 | */ |
104 | typedef void (*veriexec_fpop_init_t)(void *); |
105 | typedef void (*veriexec_fpop_update_t)(void *, u_char *, u_int); |
106 | typedef void (*veriexec_fpop_final_t)(u_char *, void *); |
107 | |
108 | void veriexec_init(void); |
109 | int veriexec_fpops_add(const char *, size_t, size_t, veriexec_fpop_init_t, |
110 | veriexec_fpop_update_t, veriexec_fpop_final_t); |
111 | int veriexec_file_add(struct lwp *, prop_dictionary_t); |
112 | int veriexec_verify(struct lwp *, struct vnode *, const u_char *, int, |
113 | bool *); |
114 | #ifdef notyet |
115 | int veriexec_page_verify(struct veriexec_file_entry *, struct vm_page *, |
116 | size_t, struct lwp *); |
117 | #endif /* notyet */ |
118 | bool veriexec_lookup(struct vnode *); |
119 | int veriexec_file_delete(struct lwp *, struct vnode *); |
120 | int veriexec_table_delete(struct lwp *, struct mount *); |
121 | int veriexec_convert(struct vnode *, prop_dictionary_t); |
122 | int veriexec_dump(struct lwp *, prop_array_t); |
123 | int veriexec_flush(struct lwp *); |
124 | void veriexec_purge(struct vnode *); |
125 | int veriexec_removechk(struct lwp *, struct vnode *, const char *); |
126 | int veriexec_renamechk(struct lwp *, struct vnode *, const char *, |
127 | struct vnode *, const char *); |
128 | int veriexec_unmountchk(struct mount *); |
129 | int veriexec_openchk(struct lwp *, struct vnode *, const char *, int); |
130 | #endif /* _KERNEL */ |
131 | |
132 | #endif /* !_SYS_VERIFIED_EXEC_H_ */ |
133 | |