master
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011, 2012, 2013, 2015, 2016, 2019, Juniper Networks, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _SECURITY_MAC_VERIEXEC_INTERNAL_H
30#define _SECURITY_MAC_VERIEXEC_INTERNAL_H
31
32#ifndef _KERNEL
33#error "no user-serviceable parts inside"
34#endif
35
36#include <sys/queue.h>
37#include <sys/malloc.h>
38#include <sys/sysctl.h>
39
40#define MAC_VERIEXEC_FULLNAME "MAC/veriexec"
41
42#define VERIEXEC_FILES_FIRST 1
43
44#ifdef MAC_VERIEXEC_DEBUG
45# define VERIEXEC_DEBUG(n, x) if (mac_veriexec_debug > (n)) printf x
46#else
47# define VERIEXEC_DEBUG(n, x)
48#endif
49
50struct mac_veriexec_file_info
51{
52 int flags;
53 long fileid;
54 unsigned long gen;
55 struct mac_veriexec_fpops *ops;
56 unsigned char fingerprint[MAXFINGERPRINTLEN];
57 char *label;
58 size_t labellen;
59 LIST_ENTRY(mac_veriexec_file_info) entries;
60};
61
62MALLOC_DECLARE(M_VERIEXEC);
63
64SYSCTL_DECL(_security_mac_veriexec);
65
66struct cred;
67struct image_params;
68struct proc;
69struct sbuf;
70struct thread;
71struct ucred;
72struct vattr;
73struct vnode;
74
75int mac_veriexec_metadata_fetch_fingerprint_status(struct vnode *vp,
76 struct vattr *vap, struct thread *td, int check_files);
77int mac_veriexec_metadata_get_executable_flags(struct ucred *cred,
78 struct proc *p, int *flags, int check_files);
79int mac_veriexec_metadata_get_file_flags(dev_t fsid, long fileid,
80 unsigned long gen, int *flags, int check_files);
81int mac_veriexec_metadata_get_file_info(dev_t fsid, long fileid,
82 unsigned long gen, int *found_dev,
83 struct mac_veriexec_file_info **ipp, int check_files);
84void mac_veriexec_metadata_init(void);
85void mac_veriexec_metadata_print_db(struct sbuf *sbp);
86int mac_veriexec_metadata_unmounted(dev_t fsid, struct thread *td);
87
88int mac_veriexec_fingerprint_add_ops(struct mac_veriexec_fpops *fpops);
89
90int mac_veriexec_fingerprint_check_image(struct image_params *imgp,
91 int check_files, struct thread *td);
92int mac_veriexec_fingerprint_check_vnode(struct vnode *vp,
93 struct mac_veriexec_file_info *ip, struct thread *td,
94 off_t file_size, unsigned char *fingerprint);
95void mac_veriexec_fingerprint_init(void);
96struct mac_veriexec_fpops *
97 mac_veriexec_fingerprint_lookup_ops(const char *type);
98
99fingerprint_status_t
100 mac_veriexec_get_fingerprint_status(struct vnode *vp);
101int mac_veriexec_get_state(void);
102int mac_veriexec_in_state(int state);
103void mac_veriexec_set_fingerprint_status(struct vnode *vp,
104 fingerprint_status_t fp_status);
105void mac_veriexec_set_state(int state);
106
107#endif /* !_SECURITY_MAC_VERIEXEC_INTERNAL_H */