sys/security/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
  30 #include <sys/cdefs.h>
  31 __FBSDID("$FreeBSD$");
  32
  33 #include <sys/param.h>
  34 #include <sys/fcntl.h>
  35
  36 #include <security/audit/audit.h>
  37
  38 #include <bsm/audit_fcntl.h>
  39 #include <bsm/audit_record.h>
  40
  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
 221 #ifdef  FCNTL_FS_SPECIFIC_BASE
 222         { BSM_F_FS_SPECIFIC_0,  FCNTL_FS_SPECIFIC_BASE},
 223         { BSM_F_FS_SPECIFIC_1,  FCNTL_FS_SPECIFIC_BASE + 1},
 224         { BSM_F_FS_SPECIFIC_2,  FCNTL_FS_SPECIFIC_BASE + 2},
 225         { BSM_F_FS_SPECIFIC_3,  FCNTL_FS_SPECIFIC_BASE + 3},
 226         { BSM_F_FS_SPECIFIC_4,  FCNTL_FS_SPECIFIC_BASE + 4},
 227         { BSM_F_FS_SPECIFIC_5,  FCNTL_FS_SPECIFIC_BASE + 5},
 228         { BSM_F_FS_SPECIFIC_6,  FCNTL_FS_SPECIFIC_BASE + 6},
 229         { BSM_F_FS_SPECIFIC_7,  FCNTL_FS_SPECIFIC_BASE + 7},
 230         { BSM_F_FS_SPECIFIC_8,  FCNTL_FS_SPECIFIC_BASE + 8},
 231         { BSM_F_FS_SPECIFIC_9,  FCNTL_FS_SPECIFIC_BASE + 9},
 232         { BSM_F_FS_SPECIFIC_10, FCNTL_FS_SPECIFIC_BASE + 10},
 233         { BSM_F_FS_SPECIFIC_11, FCNTL_FS_SPECIFIC_BASE + 11},
 234         { BSM_F_FS_SPECIFIC_12, FCNTL_FS_SPECIFIC_BASE + 12},
 235         { BSM_F_FS_SPECIFIC_13, FCNTL_FS_SPECIFIC_BASE + 13},
 236         { BSM_F_FS_SPECIFIC_14, FCNTL_FS_SPECIFIC_BASE + 14},
 237         { BSM_F_FS_SPECIFIC_15, FCNTL_FS_SPECIFIC_BASE + 15},
 238 #endif  /* FCNTL_FS_SPECIFIC_BASE */
 239 };
 240 static const int bsm_fcntl_cmd_count = sizeof(bsm_fcntl_cmdtab) /
 241             sizeof(bsm_fcntl_cmdtab[0]);
 242
 243 static const bsm_fcntl_cmd_t *
 244 bsm_lookup_local_fcntl_cmd(int local_fcntl_cmd)
 245 {
 246         int i;
 247
 248         for (i = 0; i < bsm_fcntl_cmd_count; i++) {
 249                 if (bsm_fcntl_cmdtab[i].bfc_local_fcntl_cmd ==
 250                     local_fcntl_cmd)
 251                         return (&bsm_fcntl_cmdtab[i]);
 252         }
 253         return (NULL);
 254 }
 255
 256 u_short
 257 au_fcntl_cmd_to_bsm(int local_fcntl_cmd)
 258 {
 259         const bsm_fcntl_cmd_t *bfcp;
 260
 261         bfcp = bsm_lookup_local_fcntl_cmd(local_fcntl_cmd);
 262         if (bfcp == NULL)
 263                 return (BSM_F_UNKNOWN);
 264         return (bfcp->bfc_bsm_fcntl_cmd);
 265 }
 266
 267 static const bsm_fcntl_cmd_t *
 268 bsm_lookup_bsm_fcntl_cmd(u_short bsm_fcntl_cmd)
 269 {
 270         int i;
 271
 272         for (i = 0; i < bsm_fcntl_cmd_count; i++) {
 273                 if (bsm_fcntl_cmdtab[i].bfc_bsm_fcntl_cmd ==
 274                     bsm_fcntl_cmd)
 275                         return (&bsm_fcntl_cmdtab[i]);
 276         }
 277         return (NULL);
 278 }
 279
 280 int
 281 au_bsm_to_fcntl_cmd(u_short bsm_fcntl_cmd, int *local_fcntl_cmdp)
 282 {
 283         const bsm_fcntl_cmd_t *bfcp;
 284
 285         bfcp = bsm_lookup_bsm_fcntl_cmd(bsm_fcntl_cmd);
 286         if (bfcp == NULL || bfcp->bfc_local_fcntl_cmd)
 287                 return (-1);
 288         *local_fcntl_cmdp = bfcp->bfc_local_fcntl_cmd;
 289         return (0);
 290 }