bsm_socket_type.c revision 256281
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: stable/10/sys/security/audit/bsm_socket_type.c 244267 2012-12-15 15:21:09Z rwatson $"); 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 43struct 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 50static 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}; 57static const int bsm_socket_types_count = sizeof(bsm_socket_types) / 58 sizeof(bsm_socket_types[0]); 59 60static const struct bsm_socket_type * 61bsm_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 73u_short 74au_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 84static const struct bsm_socket_type * 85bsm_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 97int 98au_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} 108