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1 /*
2  * Copyright (C) 2017 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  * Usage:
17  *   $0 [impl name] < line-by-line-input-and-expect
18  */
19 
20 #include <ctype.h>
21 #include <stdint.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <unistd.h>
26 
27 #define LOG_TAG "ese-replay"
28 #include <ese/ese.h>
29 #include <ese/log.h>
30 
31 #include "buffer.h"
32 #include "hw.h"
33 #include "payload.h"
34 
35 const struct SupportedHardware kSupportedHardware = {
36     .len = 3,
37     .hw =
38         {
39             {
40                 .name = "nq-nci",
41                 .sym = "ESE_HW_NXP_PN80T_NQ_NCI_ops",
42                 .lib = "libese-hw-nxp-pn80t-nq-nci.so",
43                 .options = NULL,
44             },
45             {
46                 .name = "fake",
47                 .sym = "ESE_HW_FAKE_ops",
48                 .lib = "libese-hw-fake.so",
49                 .options = NULL,
50             },
51             {
52                 .name = "echo",
53                 .sym = "ESE_HW_ECHO_ops",
54                 .lib = "libese-hw-echo.so",
55                 .options = NULL,
56             },
57         },
58 };
59 
main(int argc,char ** argv)60 int main(int argc, char **argv) {
61   if (argc != 2) {
62     printf("Usage:\n%s [hw_impl] < file_with_apdus\n\n"
63            "File format:\n"
64            "  hex-apdu-to-send hex-trailing-response-bytes\\n\n"
65            "\n"
66            "For example,\n"
67            "  echo -e '00A4040000 9000\\n80CA9F7F00 9000\\n' | %s nq-nci\n",
68            argv[0], argv[0]);
69     print_supported_hardware(&kSupportedHardware);
70     return 1;
71   }
72   int hw_id = find_supported_hardware(&kSupportedHardware, argv[1]);
73   if (hw_id < 0) {
74     fprintf(stderr, "Unknown hardware name: %s\n", argv[1]);
75     return 3;
76   }
77   const struct Hardware *hw = &kSupportedHardware.hw[hw_id];
78 
79   struct EseInterface ese;
80   printf("[-] Initializing eSE\n");
81 
82   if (!initialize_hardware(&ese, hw)) {
83     fprintf(stderr, "Could not initialize hardware\n");
84     return 2;
85   }
86   printf("eSE implementation selected: %s\n", ese_name(&ese));
87   if (ese_open(&ese, hw->options)) {
88     ALOGE("Cannot open hw");
89     if (ese_error(&ese)) {
90       ALOGE("eSE error (%d): %s", ese_error_code(&ese),
91             ese_error_message(&ese));
92     }
93     return 5;
94   }
95   printf("eSE is open\n");
96   struct Payload payload;
97   if (!payload_init(&payload, 10 * 1024 * 1024, 1024 * 4)) {
98     ALOGE("Failed to initialize payload.");
99     return -1;
100   }
101 
102   struct Buffer reply;
103   buffer_init(&reply, 2048);
104   while (!feof(stdin) && payload_read(&payload, stdin)) {
105     payload_dump(&payload, stdout);
106     reply.len = (uint32_t)ese_transceive(
107         &ese, payload.tx.buffer, payload.tx.len, reply.buffer, reply.size);
108     if ((int)reply.len < 0 || ese_error(&ese)) {
109       printf("Transceive error. See logcat -s ese-replay\n");
110       ALOGE("transceived returned failure: %d\n", (int)reply.len);
111       if (ese_error(&ese)) {
112         ALOGE("An error (%d) occurred: %s", ese_error_code(&ese),
113               ese_error_message(&ese));
114       }
115       break;
116     }
117     buffer_dump(&reply, "", "Response", 240, stdout);
118     if (reply.len < payload.expected.len) {
119       printf("Received less data than expected: %u < %u\n", reply.len,
120              payload.expected.len);
121       break;
122     }
123 
124     /* Only compare the end. This allows a simple APDU success match. */
125     if (memcmp(payload.expected.buffer,
126                (reply.buffer + reply.len) - payload.expected.len,
127                payload.expected.len)) {
128       printf("Response did not match. Aborting!\n");
129       break;
130     }
131   }
132   buffer_free(&reply);
133   printf("Transmissions complete.\n");
134   ese_close(&ese);
135   release_hardware(hw);
136   return 0;
137 }
138