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 30 #include <sys/types.h> 31 #include <sys/socket.h> 32 33 #include <config/config.h> 34 35 #include <bsm/audit_socket_type.h> 36 #include <bsm/libbsm.h> 37 38 struct bsm_socket_type { 39 u_short bst_bsm_socket_type; 40 int bst_local_socket_type; 41 }; 42 43 #define ST_NO_LOCAL_MAPPING -600 44 45 static const struct bsm_socket_type bsm_socket_types[] = { 46 { BSM_SOCK_DGRAM, SOCK_DGRAM }, 47 { BSM_SOCK_STREAM, SOCK_STREAM }, 48 { BSM_SOCK_RAW, SOCK_RAW }, 49 { BSM_SOCK_RDM, SOCK_RDM }, 50 { BSM_SOCK_SEQPACKET, SOCK_SEQPACKET }, 51 }; 52 static const int bsm_socket_types_count = sizeof(bsm_socket_types) / 53 sizeof(bsm_socket_types[0]); 54 55 static const struct bsm_socket_type * 56 bsm_lookup_local_socket_type(int local_socket_type) 57 { 58 int i; 59 60 for (i = 0; i < bsm_socket_types_count; i++) { 61 if (bsm_socket_types[i].bst_local_socket_type == 62 local_socket_type) 63 return (&bsm_socket_types[i]); 64 } 65 return (NULL); 66 } 67 68 u_short 69 au_socket_type_to_bsm(int local_socket_type) 70 { 71 const struct bsm_socket_type *bstp; 72 73 bstp = bsm_lookup_local_socket_type(local_socket_type); 74 if (bstp == NULL) 75 return (BSM_SOCK_UNKNOWN); 76 return (bstp->bst_bsm_socket_type); 77 } 78 79 static const struct bsm_socket_type * 80 bsm_lookup_bsm_socket_type(u_short bsm_socket_type) 81 { 82 int i; 83 84 for (i = 0; i < bsm_socket_types_count; i++) { 85 if (bsm_socket_types[i].bst_bsm_socket_type == 86 bsm_socket_type) 87 return (&bsm_socket_types[i]); 88 } 89 return (NULL); 90 } 91 92 int 93 au_bsm_to_socket_type(u_short bsm_socket_type, int *local_socket_typep) 94 { 95 const struct bsm_socket_type *bstp; 96 97 bstp = bsm_lookup_bsm_socket_type(bsm_socket_type); 98 if (bstp == NULL || bstp->bst_local_socket_type) 99 return (-1); 100 *local_socket_typep = bstp->bst_local_socket_type; 101 return (0); 102 } 103