1 /*-
2 * Copyright (c) 2008 Apple Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 *
29 * P4: //depot/projects/trustedbsd/openbsm/libbsm/bsm_socket_type.c#1
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34
35 #include <sys/param.h>
36 #include <sys/socket.h>
37
38 #include <security/audit/audit.h>
39
40 #include <bsm/audit_record.h>
41 #include <bsm/audit_socket_type.h>
42
43 struct bsm_socket_type {
44 u_short bst_bsm_socket_type;
45 int bst_local_socket_type;
46 };
47
48 #define ST_NO_LOCAL_MAPPING -600
49
50 static const struct bsm_socket_type bsm_socket_types[] = {
51 { BSM_SOCK_DGRAM, SOCK_DGRAM },
52 { BSM_SOCK_STREAM, SOCK_STREAM },
53 { BSM_SOCK_RAW, SOCK_RAW },
54 { BSM_SOCK_RDM, SOCK_RDM },
55 { BSM_SOCK_SEQPACKET, SOCK_SEQPACKET },
56 };
57 static const int bsm_socket_types_count = sizeof(bsm_socket_types) /
58 sizeof(bsm_socket_types[0]);
59
60 static const struct bsm_socket_type *
61 bsm_lookup_local_socket_type(int local_socket_type)
62 {
63 int i;
64
65 for (i = 0; i < bsm_socket_types_count; i++) {
66 if (bsm_socket_types[i].bst_local_socket_type ==
67 local_socket_type)
68 return (&bsm_socket_types[i]);
69 }
70 return (NULL);
71 }
72
73 u_short
74 au_socket_type_to_bsm(int local_socket_type)
75 {
76 const struct bsm_socket_type *bstp;
77
78 bstp = bsm_lookup_local_socket_type(local_socket_type);
79 if (bstp == NULL)
80 return (BSM_SOCK_UNKNOWN);
81 return (bstp->bst_bsm_socket_type);
82 }
83
84 static const struct bsm_socket_type *
85 bsm_lookup_bsm_socket_type(u_short bsm_socket_type)
86 {
87 int i;
88
89 for (i = 0; i < bsm_socket_types_count; i++) {
90 if (bsm_socket_types[i].bst_bsm_socket_type ==
91 bsm_socket_type)
92 return (&bsm_socket_types[i]);
93 }
94 return (NULL);
95 }
96
97 int
98 au_bsm_to_socket_type(u_short bsm_socket_type, int *local_socket_typep)
99 {
100 const struct bsm_socket_type *bstp;
101
102 bstp = bsm_lookup_bsm_socket_type(bsm_socket_type);
103 if (bstp == NULL || bstp->bst_local_socket_type)
104 return (-1);
105 *local_socket_typep = bstp->bst_local_socket_type;
106 return (0);
107 }
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