bsd/security/audit/audit_bsm_fcntl.c

   1 /*-
   2  * Copyright (c) 2008-2009 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_fcntl.c#2 $
  30  */
  31
  32 #include <sys/param.h>
  33 #include <sys/fcntl.h>
  34
  35 #include <security/audit/audit.h>
  36
  37 #include <bsm/audit_record.h>
  38 #include <bsm/audit_fcntl.h>
  39
  40 #if CONFIG_AUDIT
  41 struct bsm_fcntl_cmd {
  42         u_short bfc_bsm_fcntl_cmd;
  43         int     bfc_local_fcntl_cmd;
  44 };
  45 typedef struct bsm_fcntl_cmd    bsm_fcntl_cmd_t;
  46
  47 static const bsm_fcntl_cmd_t bsm_fcntl_cmdtab[] = {
  48         { BSM_F_DUPFD, F_DUPFD },
  49         { BSM_F_GETFD, F_GETFD },
  50         { BSM_F_SETFD, F_SETFD },
  51         { BSM_F_GETFL, F_GETFL },
  52         { BSM_F_SETFL, F_SETFL },
  53 #ifdef  F_O_GETLK
  54         { BSM_F_O_GETLK, F_O_GETLK },
  55 #endif
  56         { BSM_F_SETLK, F_SETLK },
  57         { BSM_F_SETLKW, F_SETLK },
  58 #ifdef  F_CHFL
  59         { BSM_F_CHKFL, F_CHKFL },
  60 #endif
  61 #ifdef  F_DUP2FD
  62         { BSM_F_DUP2FD, F_DUP2FD },
  63 #endif
  64 #ifdef  F_ALLOCSP
  65         { BSM_F_ALLOCSP, F_ALLOCSP },
  66 #endif
  67 #ifdef  F_FREESP
  68         { BSM_F_FREESP, F_FREESP },
  69 #endif
  70 #ifdef  F_ISSTREAM
  71         { BSM_F_ISSTREAM, F_ISSTREAM},
  72 #endif
  73         { BSM_F_GETLK, F_GETLK },
  74 #ifdef  F_PRIV
  75         { BSM_F_PRIV, F_PRIV },
  76 #endif
  77 #ifdef  F_NPRIV
  78         { BSM_F_NPRIV, F_NPRIV },
  79 #endif
  80 #ifdef  F_QUOTACTL
  81         { BSM_F_QUOTACTL, F_QUOTACTL },
  82 #endif
  83 #ifdef  F_BLOCKS
  84         { BSM_F_BLOCKS, F_BLOCKS },
  85 #endif
  86 #ifdef  F_BLKSIZE
  87         { BSM_F_BLKSIZE, F_BLKSIZE },
  88 #endif
  89         { BSM_F_GETOWN, F_GETOWN },
  90         { BSM_F_SETOWN, F_SETOWN },
  91 #ifdef  F_REVOKE
  92         { BSM_F_REVOKE, F_REVOKE },
  93 #endif
  94 #ifdef  F_HASREMOTEBLOCKS
  95         { BSM_F_HASREMOTEBLOCKS,
  96           F_HASREMOTEBLOCKS },
  97 #endif
  98 #ifdef  F_FREESP
  99         { BSM_F_FREESP, F_FREESP },
 100 #endif
 101 #ifdef  F_ALLOCSP
 102         { BSM_F_ALLOCSP, F_ALLOCSP },
 103 #endif
 104 #ifdef  F_FREESP64
 105         { BSM_F_FREESP64, F_FREESP64 },
 106 #endif
 107 #ifdef  F_ALLOCSP64
 108         { BSM_F_ALLOCSP64, F_ALLOCSP64 },
 109 #endif
 110 #ifdef  F_GETLK64
 111         { BSM_F_GETLK64, F_GETLK64 },
 112 #endif
 113 #ifdef  F_SETLK64
 114         { BSM_F_SETLK64, F_SETLK64 },
 115 #endif
 116 #ifdef  F_SETLKW64
 117         { BSM_F_SETLKW64, F_SETLKW64 },
 118 #endif
 119 #ifdef  F_SHARE
 120         { BSM_F_SHARE, F_SHARE },
 121 #endif
 122 #ifdef  F_UNSHARE
 123         { BSM_F_UNSHARE, F_UNSHARE },
 124 #endif
 125 #ifdef  F_SETLK_NBMAND
 126         { BSM_F_SETLK_NBMAND, F_SETLK_NBMAND },
 127 #endif
 128 #ifdef  F_SHARE_NBMAND
 129         { BSM_F_SHARE_NBMAND, F_SHARE_NBMAND },
 130 #endif
 131 #ifdef  F_SETLK64_NBMAND
 132         { BSM_F_SETLK64_NBMAND, F_SETLK64_NBMAND },
 133 #endif
 134 #ifdef  F_GETXFL
 135         { BSM_F_GETXFL, F_GETXFL },
 136 #endif
 137 #ifdef  F_BADFD
 138         { BSM_F_BADFD, F_BADFD },
 139 #endif
 140 #ifdef  F_OGETLK
 141         { BSM_F_OGETLK, F_OGETLK },
 142 #endif
 143 #ifdef  F_OSETLK
 144         { BSM_F_OSETLK, F_OSETLK },
 145 #endif
 146 #ifdef  F_OSETLKW
 147         { BSM_F_OSETLKW, F_OSETLKW },
 148 #endif
 149 #ifdef  F_SETLK_REMOTE
 150         { BSM_F_SETLK_REMOTE, F_SETLK_REMOTE },
 151 #endif
 152
 153 #ifdef  F_SETSIG
 154         { BSM_F_SETSIG, F_SETSIG },
 155 #endif
 156 #ifdef  F_GETSIG
 157         { BSM_F_GETSIG, F_GETSIG },
 158 #endif
 159
 160 #ifdef  F_CHKCLEAN
 161         { BSM_F_CHKCLEAN, F_CHKCLEAN },
 162 #endif
 163 #ifdef  F_PREALLOCATE
 164         { BSM_F_PREALLOCATE, F_PREALLOCATE },
 165 #endif
 166 #ifdef  F_SETSIZE
 167         { BSM_F_SETSIZE, F_SETSIZE },
 168 #endif
 169 #ifdef  F_RDADVISE
 170         { BSM_F_RDADVISE, F_RDADVISE },
 171 #endif
 172 #ifdef  F_RDAHEAD
 173         { BSM_F_RDAHEAD, F_RDAHEAD },
 174 #endif
 175 #ifdef  F_READBOOTSTRAP
 176         { BSM_F_READBOOTSTRAP, F_READBOOTSTRAP },
 177 #endif
 178 #ifdef  F_WRITEBOOTSTRAP
 179         { BSM_F_WRITEBOOTSTRAP, F_WRITEBOOTSTRAP },
 180 #endif
 181 #ifdef  F_NOCACHE
 182         { BSM_F_NOCACHE, F_NOCACHE },
 183 #endif
 184 #ifdef  F_LOG2PHYS
 185         { BSM_F_LOG2PHYS, F_LOG2PHYS },
 186 #endif
 187 #ifdef  F_GETPATH
 188         { BSM_F_GETPATH, F_GETPATH },
 189 #endif
 190 #ifdef  F_FULLFSYNC
 191         { BSM_F_FULLFSYNC, F_FULLFSYNC },
 192 #endif
 193 #ifdef  F_PATHPKG_CHECK
 194         { BSM_F_PATHPKG_CHECK, F_PATHPKG_CHECK },
 195 #endif
 196 #ifdef  F_FREEZE_FS
 197         { BSM_F_FREEZE_FS, F_FREEZE_FS },
 198 #endif
 199 #ifdef  F_THAW_FS
 200         { BSM_F_THAW_FS, F_THAW_FS },
 201 #endif
 202 #ifdef  F_GLOBAL_NOCACHE
 203         { BSM_F_GLOBAL_NOCACHE, F_GLOBAL_NOCACHE },
 204 #endif
 205 #ifdef  F_OPENFROM
 206         { BSM_F_OPENFROM, F_OPENFROM },
 207 #endif
 208 #ifdef  F_UNLINKFROM
 209         { BSM_F_UNLINKFROM, F_UNLINKFROM },
 210 #endif
 211 #ifdef  F_CHECK_OPENEVT
 212         { BSM_F_CHECK_OPENEVT, F_CHECK_OPENEVT },
 213 #endif
 214 #ifdef  F_ADDSIGS
 215         { BSM_F_ADDSIGS, F_ADDSIGS },
 216 #endif
 217 #ifdef  F_MARKDEPENDENCY
 218         { BSM_F_MARKDEPENDENCY, F_MARKDEPENDENCY },
 219 #endif
 220 #ifdef  F_BARRIERFSYNC
 221         { BSM_F_BARRIERFSYNC, F_BARRIERFSYNC },
 222 #endif
 223 #ifdef  F_PUNCHHOLE
 224         { BSM_F_PUNCHHOLE, F_PUNCHHOLE },
 225 #endif
 226 #ifdef  F_TRIM_ACTIVE_FILE
 227         { BSM_F_TRIM_ACTIVE_FILE, F_TRIM_ACTIVE_FILE },
 228 #endif
 229
 230 #ifdef  FCNTL_FS_SPECIFIC_BASE
 231         { BSM_F_FS_SPECIFIC_0, FCNTL_FS_SPECIFIC_BASE},
 232         { BSM_F_FS_SPECIFIC_1, FCNTL_FS_SPECIFIC_BASE + 1},
 233         { BSM_F_FS_SPECIFIC_2, FCNTL_FS_SPECIFIC_BASE + 2},
 234         { BSM_F_FS_SPECIFIC_3, FCNTL_FS_SPECIFIC_BASE + 3},
 235         { BSM_F_FS_SPECIFIC_4, FCNTL_FS_SPECIFIC_BASE + 4},
 236         { BSM_F_FS_SPECIFIC_5, FCNTL_FS_SPECIFIC_BASE + 5},
 237         { BSM_F_FS_SPECIFIC_6, FCNTL_FS_SPECIFIC_BASE + 6},
 238         { BSM_F_FS_SPECIFIC_7, FCNTL_FS_SPECIFIC_BASE + 7},
 239         { BSM_F_FS_SPECIFIC_8, FCNTL_FS_SPECIFIC_BASE + 8},
 240         { BSM_F_FS_SPECIFIC_9, FCNTL_FS_SPECIFIC_BASE + 9},
 241         { BSM_F_FS_SPECIFIC_10, FCNTL_FS_SPECIFIC_BASE + 10},
 242         { BSM_F_FS_SPECIFIC_11, FCNTL_FS_SPECIFIC_BASE + 11},
 243         { BSM_F_FS_SPECIFIC_12, FCNTL_FS_SPECIFIC_BASE + 12},
 244         { BSM_F_FS_SPECIFIC_13, FCNTL_FS_SPECIFIC_BASE + 13},
 245         { BSM_F_FS_SPECIFIC_14, FCNTL_FS_SPECIFIC_BASE + 14},
 246         { BSM_F_FS_SPECIFIC_15, FCNTL_FS_SPECIFIC_BASE + 15},
 247 #endif  /* FCNTL_FS_SPECIFIC_BASE */
 248 };
 249 static const int bsm_fcntl_cmd_count = sizeof(bsm_fcntl_cmdtab) /
 250     sizeof(bsm_fcntl_cmdtab[0]);
 251
 252 static const bsm_fcntl_cmd_t *
 253 bsm_lookup_local_fcntl_cmd(int local_fcntl_cmd)
 254 {
 255         int i;
 256
 257         for (i = 0; i < bsm_fcntl_cmd_count; i++) {
 258                 if (bsm_fcntl_cmdtab[i].bfc_local_fcntl_cmd ==
 259                     local_fcntl_cmd) {
 260                         return &bsm_fcntl_cmdtab[i];
 261                 }
 262         }
 263         return NULL;
 264 }
 265
 266 u_short
 267 au_fcntl_cmd_to_bsm(int local_fcntl_cmd)
 268 {
 269         const bsm_fcntl_cmd_t *bfcp;
 270
 271         bfcp = bsm_lookup_local_fcntl_cmd(local_fcntl_cmd);
 272         if (bfcp == NULL) {
 273                 return BSM_F_UNKNOWN;
 274         }
 275         return bfcp->bfc_bsm_fcntl_cmd;
 276 }
 277
 278 static const bsm_fcntl_cmd_t *
 279 bsm_lookup_bsm_fcntl_cmd(u_short bsm_fcntl_cmd)
 280 {
 281         int i;
 282
 283         for (i = 0; i < bsm_fcntl_cmd_count; i++) {
 284                 if (bsm_fcntl_cmdtab[i].bfc_bsm_fcntl_cmd ==
 285                     bsm_fcntl_cmd) {
 286                         return &bsm_fcntl_cmdtab[i];
 287                 }
 288         }
 289         return NULL;
 290 }
 291
 292 int
 293 au_bsm_to_fcntl_cmd(u_short bsm_fcntl_cmd, int *local_fcntl_cmdp)
 294 {
 295         const bsm_fcntl_cmd_t *bfcp;
 296
 297         bfcp = bsm_lookup_bsm_fcntl_cmd(bsm_fcntl_cmd);
 298         if (bfcp == NULL || bfcp->bfc_local_fcntl_cmd) {
 299                 return -1;
 300         }
 301         *local_fcntl_cmdp = bfcp->bfc_local_fcntl_cmd;
 302         return 0;
 303 }
 304 #endif /* CONFIG_AUDIT */