1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/**
* iRecovery - Utility for DFU 2.0, WTF and Recovery Mode
* Copyright (C) 2008 - 2009 westbaer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libusb-1.0/libusb.h>
#include "libirecovery.h"
irecv_device_t* irecv_init() {
struct libusb_context* usb_context = NULL;
libusb_init(&usb_context);
irecv_device_t* device = (irecv_device_t*) malloc(sizeof(irecv_device_t));
if (device == NULL) {
return NULL;
}
memset(device, '\0', sizeof(irecv_device_t));
device->context = usb_context;
return device;
}
int irecv_open(irecv_device_t* device) {
int i = 0;
int usb_device_count = 0;
struct libusb_device* usb_device = NULL;
struct libusb_device** usb_device_list = NULL;
struct libusb_device_handle* usb_handle = NULL;
struct libusb_device_descriptor usb_descriptor;
if (device == NULL || device->context == NULL) {
return IRECV_ERROR_NO_DEVICE;
}
usb_device_count = libusb_get_device_list(device->context, &usb_device_list);
for (i = 0; i < usb_device_count; i++) {
usb_device = usb_device_list[i];
libusb_get_device_descriptor(usb_device, &usb_descriptor);
if (usb_descriptor.idVendor == kAppleId) {
libusb_open(usb_device, &usb_handle);
if (usb_handle == NULL) {
libusb_free_device_list(usb_device_list, 1);
return IRECV_ERROR_UNABLE_TO_CONNECT;
}
libusb_free_device_list(usb_device_list, 1);
device->mode = usb_descriptor.idProduct;
device->handle = usb_handle;
return IRECV_SUCCESS;
}
}
return IRECV_ERROR_NO_DEVICE;
}
int irecv_reset(irecv_device_t* device) {
if (device == NULL || device->handle != NULL) {
return IRECV_ERROR_NO_DEVICE;
}
libusb_reset_device(device->handle);
return IRECV_SUCCESS;
}
int irecv_close(irecv_device_t* device) {
if (device == NULL || device->handle != NULL) {
return IRECV_ERROR_NO_DEVICE;
}
libusb_close(device->handle);
device->handle = NULL;
return IRECV_SUCCESS;
}
int irecv_exit(irecv_device_t* device) {
if (device != NULL) {
if (device->handle != NULL) {
libusb_close(device->handle);
device->handle = NULL;
}
if (device->context != NULL) {
libusb_exit(device->context);
device->context = NULL;
}
free(device);
device = NULL;
}
return IRECV_SUCCESS;
}
void irecv_set_debug(irecv_device_t* device, int level) {
libusb_set_debug(device->context, level);
device->debug = level;
}
int irecv_send_command(irecv_device_t* device, unsigned char* command) {
if(device == NULL || device->handle == NULL) {
return IRECV_ERROR_NO_DEVICE;
}
ssize_t length = strlen(command);
if(length >= 0x100) {
return IRECV_ERROR_INVALID_INPUT;
}
if(device->send_callback != NULL) {
// Call our user defined callback first, this must return a number of bytes to send
// or zero to abort send.
length = device->send_callback(device, command, length);
if(length > 0) {
int ret = libusb_control_transfer(device->handle, 0x40, 0, 0, 0, (unsigned char*) command, length+1, 100);
if(ret < 0) {
return IRECV_ERROR_UNKNOWN;
}
}
}
return IRECV_SUCCESS;
}
int irecv_send_file(irecv_device_t* device, const char* filename) {
FILE* file = fopen(filename, "rb");
if (file == NULL) {
return IRECV_ERROR_FILE_NOT_FOUND;
}
fseek(file, 0, SEEK_END);
int length = ftell(file);
fseek(file, 0, SEEK_SET);
unsigned char* buffer = (unsigned char*) malloc(length);
if (buffer == NULL) {
fclose(file);
return IRECV_ERROR_OUT_OF_MEMORY;
}
int bytes = fread(buffer, 1, length, file);
fclose(file);
if(bytes != length) {
free(buffer);
return IRECV_ERROR_UNKNOWN;
}
return irecv_send_buffer(device, buffer, length);
}
unsigned int irecv_get_status(irecv_device_t* device) {
unsigned char status[6];
memset(status, '\0', 6);
if(libusb_control_transfer(device->handle, 0xA1, 3, 0, 0, status, 6, 500) != 6) {
return IRECV_ERROR_USB_STATUS;
}
return (unsigned int) status[4];
}
int irecv_send_buffer(irecv_device_t* device, unsigned char* buffer, int length) {
int last = length % 0x800;
int packets = length / 0x800;
if (last != 0) {
packets++;
} else {
last = 0x800;
}
int i = 0;
char status[6];
for (i = 0; i < packets; i++) {
int size = i + 1 < packets ? 0x800 : last;
int bytes = libusb_control_transfer(device->handle, 0x21, 1, i, 0, &buffer[i * 0x800], size, 500);
if (bytes != size) {
free(buffer);
return IRECV_ERROR_USB_UPLOAD;
}
if (irecv_get_status(device) != 5) {
free(buffer);
return IRECV_ERROR_USB_STATUS;
}
}
libusb_control_transfer(device->handle, 0x21, 1, i, 0, buffer, 0, 1000);
for (i = 0; i < 3; i++) {
irecv_get_status(device);
}
free(buffer);
return IRECV_SUCCESS;
}
void irecv_update(irecv_device_t* device) {
if(device->receive_callback == NULL) {
return;
}
}
int irecv_set_receiver(irecv_device_t* device, irecv_receive_callback callback) {
device->receive_callback = callback;
return IRECV_SUCCESS;
}
int irecv_set_sender(irecv_device_t* device, irecv_send_callback callback) {
device->send_callback = callback;
return IRECV_SUCCESS;
}
|
