SecurityTool/macOS/translocate.c

   1 /*
   2  * Copyright (c) 2016 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <stdio.h>
  25 #include <dirent.h>
  26
  27 #include <CoreFoundation/CoreFoundation.h>
  28
  29 #include <Security/SecTranslocate.h>
  30
  31 #include "security_tool.h"
  32 #include "translocate.h"
  33
  34 static CFURLRef CFURLfromPath(const char * path, Boolean isDir)
  35 {
  36     return CFURLCreateFromFileSystemRepresentation(NULL, (UInt8*)path, strlen(path), isDir);
  37 }
  38
  39 static char * PathFromCFURL(CFURLRef url)
  40 {
  41     char* path = malloc(PATH_MAX);
  42
  43     if (!path)
  44     {
  45         goto done;
  46     }
  47
  48     if (!CFURLGetFileSystemRepresentation(url, true, (UInt8*)path, PATH_MAX))
  49     {
  50         free(path);
  51         path = NULL;
  52     }
  53
  54 done:
  55     return path;
  56 }
  57
  58 static Boolean PathIsDir(const char * path)
  59 {
  60     Boolean result = false;
  61
  62     if(!path)
  63     {
  64         goto done;
  65     }
  66
  67     DIR* d = opendir(path);
  68
  69     if(d)
  70     {
  71         result = true;
  72         closedir(d);
  73     }
  74
  75 done:
  76     return result;
  77 }
  78
  79 static void SafeCFRelease(CFTypeRef ref)
  80 {
  81     if (ref)
  82     {
  83         CFRelease(ref);
  84     }
  85 }
  86
  87 /* return 2 = bad args, anything else is ignored */
  88
  89 int translocate_create(int argc, char * const *argv)
  90 {
  91     int result = -1;
  92
  93     if (argc != 2)
  94     {
  95         return SHOW_USAGE_MESSAGE;
  96     }
  97
  98     CFURLRef inUrl = CFURLfromPath(argv[1], PathIsDir(argv[1]));
  99     CFURLRef outUrl = NULL;
 100     CFErrorRef error = NULL;
 101     char* outPath = NULL;
 102
 103     if(!inUrl)
 104     {
 105         printf("Error: failed to create url for: %s\n", argv[1]);
 106         goto done;
 107     }
 108
 109     outUrl = SecTranslocateCreateSecureDirectoryForURL(inUrl, NULL, &error);
 110
 111     if (!outUrl)
 112     {
 113         int err = (int)CFErrorGetCode(error);
 114         printf("Error: failed while trying to translocate %s (errno: %d, %s)\n", argv[1], err, strerror(err));
 115         goto done;
 116     }
 117
 118     outPath = PathFromCFURL(outUrl);
 119
 120     if( !outPath )
 121     {
 122         printf("Error: failed to convert out url to string for %s\n", argv[1]);
 123         goto done;
 124     }
 125
 126     printf("Translocation point: (note if this is what you passed in then that path should not be translocated)\n\t%s\n",outPath);
 127
 128     free(outPath);
 129     result = 0;
 130
 131 done:
 132     SafeCFRelease(inUrl);
 133     SafeCFRelease(outUrl);
 134     SafeCFRelease(error);
 135
 136     return result;
 137 }
 138
 139 int translocate_policy(int argc, char * const *argv)
 140 {
 141     int result = -1;
 142
 143     if (argc != 2)
 144     {
 145         return SHOW_USAGE_MESSAGE;
 146     }
 147
 148     CFURLRef inUrl = CFURLfromPath(argv[1], PathIsDir(argv[1]));
 149     bool should = false;
 150     CFErrorRef error = NULL;
 151
 152     if(!inUrl)
 153     {
 154         printf("Error: failed to create url for: %s\n", argv[1]);
 155         goto done;
 156     }
 157
 158     if (!SecTranslocateURLShouldRunTranslocated(inUrl, &should, &error))
 159     {
 160         int err = (int)CFErrorGetCode(error);
 161         printf("Error: failed while trying to check policy for %s (errno: %d, %s)\n", argv[1], err, strerror(err));
 162         goto done;
 163     }
 164
 165     printf("\t%s\n", should ? "Would translocate": "Would not translocate");
 166
 167     result = 0;
 168
 169 done:
 170     SafeCFRelease(inUrl);
 171     SafeCFRelease(error);
 172
 173     return result;
 174 }
 175
 176 int translocate_check(int argc, char * const *argv)
 177 {
 178     int result = -1;
 179
 180     if (argc != 2)
 181     {
 182         return SHOW_USAGE_MESSAGE;
 183     }
 184
 185     CFURLRef inUrl = CFURLfromPath(argv[1], PathIsDir(argv[1]));
 186     bool is = false;
 187     CFErrorRef error = NULL;
 188
 189     if(!inUrl)
 190     {
 191         printf("Error: failed to create url for: %s\n", argv[1]);
 192         goto done;
 193     }
 194
 195     if (!SecTranslocateIsTranslocatedURL(inUrl, &is, &error))
 196     {
 197         int err = (int)CFErrorGetCode(error);
 198         printf("Error: failed while trying to check status for %s (errno: %d, %s)\n", argv[1], err, strerror(err));
 199         goto done;
 200     }
 201
 202     printf("\t%s\n", is ? "TRANSLOCATED": "NOT TRANSLOCATED");
 203
 204     result = 0;
 205
 206 done:
 207     SafeCFRelease(inUrl);
 208     SafeCFRelease(error);
 209
 210     return result;
 211 }
 212
 213 int translocate_original_path(int argc, char * const * argv)
 214 {
 215     int result = -1;
 216
 217     if (argc != 2)
 218     {
 219         return SHOW_USAGE_MESSAGE;
 220     }
 221
 222     CFURLRef inUrl = CFURLfromPath(argv[1], PathIsDir(argv[1]));
 223     CFURLRef outUrl = NULL;
 224     CFErrorRef error = NULL;
 225     char* outPath = NULL;
 226
 227     if(!inUrl)
 228     {
 229         printf("Error: failed to create url for: %s\n", argv[1]);
 230         goto done;
 231     }
 232
 233     outUrl = SecTranslocateCreateOriginalPathForURL(inUrl, &error);
 234
 235     if (!outUrl)
 236     {
 237         int err = (int)CFErrorGetCode(error);
 238         printf("Error: failed while trying to find original path for %s (errno: %d, %s)\n", argv[1], err, strerror(err));
 239         goto done;
 240     }
 241
 242     outPath = PathFromCFURL(outUrl);
 243
 244     if( !outPath )
 245     {
 246         printf("Error: failed to convert out url to string for %s\n", argv[1]);
 247         goto done;
 248     }
 249
 250     printf("Original Path: (note if this is what you passed in then that path is not translocated)\n\t%s\n",outPath);
 251
 252     free(outPath);
 253     result = 0;
 254
 255 done:
 256     SafeCFRelease(inUrl);
 257     SafeCFRelease(outUrl);
 258     SafeCFRelease(error);
 259
 260     return result;
 261 }
 262