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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <stdio.h>
     18 #include <stdint.h>
     19 #include <string.h>
     20 #include <sys/types.h>
     21 
     22 #include <keystore/IKeystoreService.h>
     23 #include <binder/IPCThreadState.h>
     24 #include <binder/IServiceManager.h>
     25 
     26 #include <keystore/keystore.h>
     27 
     28 using namespace android;
     29 using namespace keystore;
     30 
     31 static const char* responses[] = {
     32     NULL,
     33     /* [NO_ERROR]           = */ "No error",
     34     /* [LOCKED]             = */ "Locked",
     35     /* [UNINITIALIZED]      = */ "Uninitialized",
     36     /* [SYSTEM_ERROR]       = */ "System error",
     37     /* [PROTOCOL_ERROR]     = */ "Protocol error",
     38     /* [PERMISSION_DENIED]  = */ "Permission denied",
     39     /* [KEY_NOT_FOUND]      = */ "Key not found",
     40     /* [VALUE_CORRUPTED]    = */ "Value corrupted",
     41     /* [UNDEFINED_ACTION]   = */ "Undefined action",
     42     /* [WRONG_PASSWORD]     = */ "Wrong password (last chance)",
     43     /* [WRONG_PASSWORD + 1] = */ "Wrong password (2 tries left)",
     44     /* [WRONG_PASSWORD + 2] = */ "Wrong password (3 tries left)",
     45     /* [WRONG_PASSWORD + 3] = */ "Wrong password (4 tries left)",
     46 };
     47 
     48 #define NO_ARG_INT_RETURN(cmd) \
     49     do { \
     50         if (strcmp(argv[1], #cmd) == 0) { \
     51             int32_t ret = service->cmd(); \
     52             if (ret < 0) { \
     53                 fprintf(stderr, "%s: could not connect: %d\n", argv[0], ret); \
     54                 return 1; \
     55             } else { \
     56                 printf(#cmd ": %s (%d)\n", responses[ret], ret); \
     57                 return 0; \
     58             } \
     59         } \
     60     } while (0)
     61 
     62 #define SINGLE_ARG_INT_RETURN(cmd) \
     63     do { \
     64         if (strcmp(argv[1], #cmd) == 0) { \
     65             if (argc < 3) { \
     66                 fprintf(stderr, "Usage: %s " #cmd " <name>\n", argv[0]); \
     67                 return 1; \
     68             } \
     69             int32_t ret = service->cmd(String16(argv[2])); \
     70             if (ret < 0) { \
     71                 fprintf(stderr, "%s: could not connect: %d\n", argv[0], ret); \
     72                 return 1; \
     73             } else { \
     74                 printf(#cmd ": %s (%d)\n", responses[ret], ret); \
     75                 return 0; \
     76             } \
     77         } \
     78     } while (0)
     79 
     80 #define SINGLE_INT_ARG_INT_RETURN(cmd) \
     81     do { \
     82         if (strcmp(argv[1], #cmd) == 0) { \
     83             if (argc < 3) { \
     84                 fprintf(stderr, "Usage: %s " #cmd " <name>\n", argv[0]); \
     85                 return 1; \
     86             } \
     87             int32_t ret = service->cmd(atoi(argv[2])); \
     88             if (ret < 0) { \
     89                 fprintf(stderr, "%s: could not connect: %d\n", argv[0], ret); \
     90                 return 1; \
     91             } else { \
     92                 printf(#cmd ": %s (%d)\n", responses[ret], ret); \
     93                 return 0; \
     94             } \
     95         } \
     96     } while (0)
     97 
     98 #define SINGLE_ARG_PLUS_UID_INT_RETURN(cmd) \
     99     do { \
    100         if (strcmp(argv[1], #cmd) == 0) { \
    101             if (argc < 3) { \
    102                 fprintf(stderr, "Usage: %s " #cmd " <name> <uid>\n", argv[0]); \
    103                 return 1; \
    104             } \
    105             int uid = -1; \
    106             if (argc > 3) { \
    107                 uid = atoi(argv[3]); \
    108                 fprintf(stderr, "Running as uid %d\n", uid); \
    109             } \
    110             int32_t ret = service->cmd(String16(argv[2]), uid); \
    111             if (ret < 0) { \
    112                 fprintf(stderr, "%s: could not connect: %d\n", argv[0], ret); \
    113                 return 1; \
    114             } else { \
    115                 printf(#cmd ": %s (%d)\n", responses[ret], ret); \
    116                 return 0; \
    117             } \
    118         } \
    119     } while (0)
    120 
    121 #define SINGLE_ARG_PLUS_UID_DATA_RETURN(cmd) \
    122     do { \
    123         if (strcmp(argv[1], #cmd) == 0) { \
    124             if (argc < 3) { \
    125                 fprintf(stderr, "Usage: %s " #cmd " <name> <uid>\n", argv[0]); \
    126                 return 1; \
    127             } \
    128             hidl_vec<uint8_t> data; \
    129             int uid = -1; \
    130             if (argc > 3) { \
    131                 uid = atoi(argv[3]); \
    132                 fprintf(stderr, "Running as uid %d\n", uid); \
    133             } \
    134             int32_t ret = service->cmd(String16(argv[2]), uid, &data); \
    135             if (ret < 0) { \
    136                 fprintf(stderr, "%s: could not connect: %d\n", argv[0], ret); \
    137                 return 1; \
    138             } else if (ret != ::NO_ERROR) { \
    139                 fprintf(stderr, "%s: " #cmd ": %s (%d)\n", argv[0], responses[ret], ret); \
    140                 return 1; \
    141             } else { \
    142                 fwrite(&data[0], data.size(), 1, stdout); \
    143                 fflush(stdout); \
    144                 return 0; \
    145             } \
    146         } \
    147     } while (0)
    148 
    149 #define STING_ARG_DATA_STDIN_INT_RETURN(cmd) \
    150     do { \
    151         if (strcmp(argv[1], #cmd) == 0) { \
    152             if (argc < 3) { \
    153                 fprintf(stderr, "Usage: %s " #cmd " <name>\n", argv[0]); \
    154                 return 1; \
    155             } \
    156             uint8_t* data; \
    157             size_t dataSize; \
    158             read_input(&data, &dataSize); \
    159             int32_t ret = service->cmd(String16(argv[2]), data, dataSize); \
    160             if (ret < 0) { \
    161                 fprintf(stderr, "%s: could not connect: %d\n", argv[0], ret); \
    162                 return 1; \
    163             } else { \
    164                 printf(#cmd ": %s (%d)\n", responses[ret], ret); \
    165                 return 0; \
    166             } \
    167         } \
    168     } while (0)
    169 
    170 #define SINGLE_ARG_DATA_RETURN(cmd) \
    171     do { \
    172         if (strcmp(argv[1], #cmd) == 0) { \
    173             if (argc < 3) { \
    174                 fprintf(stderr, "Usage: %s " #cmd " <name>\n", argv[0]); \
    175                 return 1; \
    176             } \
    177             hidl_vec<uint8_t> data; \
    178             int32_t ret = service->cmd(String16(argv[2]), &data); \
    179             if (ret < 0) { \
    180                 fprintf(stderr, "%s: could not connect: %d\n", argv[0], ret); \
    181                 return 1; \
    182             } else if (ret != ::NO_ERROR) { \
    183                 fprintf(stderr, "%s: " #cmd ": %s (%d)\n", argv[0], responses[ret], ret); \
    184                 return 1; \
    185             } else { \
    186                 fwrite(&data[0], data.size(), 1, stdout); \
    187                 fflush(stdout); \
    188                 return 0; \
    189             } \
    190         } \
    191     } while (0)
    192 
    193 static int list(const sp<IKeystoreService>& service, const String16& name, int uid) {
    194     Vector<String16> matches;
    195     int32_t ret = service->list(name, uid, &matches);
    196     if (ret < 0) {
    197         fprintf(stderr, "list: could not connect: %d\n", ret);
    198         return 1;
    199     } else if (ret != ::NO_ERROR) {
    200         fprintf(stderr, "list: %s (%d)\n", responses[ret], ret);
    201         return 1;
    202     } else {
    203         Vector<String16>::const_iterator it = matches.begin();
    204         for (; it != matches.end(); ++it) {
    205             printf("%s\n", String8(*it).string());
    206         }
    207         return 0;
    208     }
    209 }
    210 
    211 int main(int argc, char* argv[])
    212 {
    213     if (argc < 2) {
    214         fprintf(stderr, "Usage: %s action [parameter ...]\n", argv[0]);
    215         return 1;
    216     }
    217 
    218     sp<IServiceManager> sm = defaultServiceManager();
    219     sp<IBinder> binder = sm->getService(String16("android.security.keystore"));
    220     sp<IKeystoreService> service = interface_cast<IKeystoreService>(binder);
    221 
    222     if (service == NULL) {
    223         fprintf(stderr, "%s: error: could not connect to keystore service\n", argv[0]);
    224         return 1;
    225     }
    226 
    227     /*
    228      * All the commands should return a value
    229      */
    230 
    231     SINGLE_INT_ARG_INT_RETURN(getState);
    232 
    233     SINGLE_ARG_PLUS_UID_DATA_RETURN(get);
    234 
    235     // TODO: insert
    236 
    237     SINGLE_ARG_PLUS_UID_INT_RETURN(del);
    238 
    239     SINGLE_ARG_PLUS_UID_INT_RETURN(exist);
    240 
    241     if (strcmp(argv[1], "list") == 0) {
    242         return list(service, argc < 3 ? String16("") : String16(argv[2]),
    243                 argc < 4 ? -1 : atoi(argv[3]));
    244     }
    245 
    246     NO_ARG_INT_RETURN(reset);
    247 
    248     // TODO: notifyUserPasswordChanged
    249 
    250     SINGLE_INT_ARG_INT_RETURN(lock);
    251 
    252     // TODO: unlock
    253 
    254     SINGLE_INT_ARG_INT_RETURN(isEmpty);
    255 
    256     // TODO: generate
    257 
    258     SINGLE_ARG_DATA_RETURN(get_pubkey);
    259 
    260     // TODO: grant
    261 
    262     // TODO: ungrant
    263 
    264     // TODO: getmtime
    265 
    266     fprintf(stderr, "%s: unknown command: %s\n", argv[0], argv[1]);
    267     return 1;
    268 }
    269