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