| 1 | //----------------------------------------------------------------------------- |
| 2 | // Copyright (C) 2009 Michael Gernoth <michael at gernoth.net> |
| 3 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com> |
| 4 | // |
| 5 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, |
| 6 | // at your option, any later version. See the LICENSE.txt file for the text of |
| 7 | // the license. |
| 8 | //----------------------------------------------------------------------------- |
| 9 | // USB utilities |
| 10 | //----------------------------------------------------------------------------- |
| 11 | |
| 12 | #include <stdio.h> |
| 13 | #include <stdlib.h> |
| 14 | #include <string.h> |
| 15 | #include <stdbool.h> |
| 16 | #include <unistd.h> |
| 17 | #include <usb.h> |
| 18 | #include <strings.h> |
| 19 | #include <errno.h> |
| 20 | |
| 21 | #include "sleep.h" |
| 22 | #include "proxusb.h" |
| 23 | #include "proxmark3.h" |
| 24 | #include "usb_cmd.h" |
| 25 | |
| 26 | // It seems to be missing for mingw |
| 27 | #ifndef ETIMEDOUT |
| 28 | #define ETIMEDOUT 116 |
| 29 | #endif |
| 30 | |
| 31 | usb_dev_handle *devh = NULL; |
| 32 | static unsigned int claimed_iface = 0; |
| 33 | unsigned char return_on_error = 0; |
| 34 | unsigned char error_occured = 0; |
| 35 | extern unsigned int current_command; |
| 36 | |
| 37 | void SendCommand(UsbCommand *c) |
| 38 | { |
| 39 | int ret; |
| 40 | |
| 41 | #if 0 |
| 42 | printf("Sending %d bytes\n", sizeof(UsbCommand)); |
| 43 | #endif |
| 44 | current_command = c->cmd; |
| 45 | ret = usb_bulk_write(devh, 0x01, (char*)c, sizeof(UsbCommand), 1000); |
| 46 | if (ret<0) { |
| 47 | error_occured = 1; |
| 48 | if (return_on_error) |
| 49 | return; |
| 50 | |
| 51 | fprintf(stderr, "write failed: %s!\nTrying to reopen device...\n", |
| 52 | usb_strerror()); |
| 53 | |
| 54 | if (devh) { |
| 55 | usb_close(devh); |
| 56 | devh = NULL; |
| 57 | } |
| 58 | while(!OpenProxmark(0)) { sleep(1); } |
| 59 | printf(PROXPROMPT); |
| 60 | fflush(NULL); |
| 61 | |
| 62 | return; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | bool ReceiveCommandPoll(UsbCommand *c) |
| 67 | { |
| 68 | int ret; |
| 69 | |
| 70 | memset(c, 0, sizeof (UsbCommand)); |
| 71 | ret = usb_bulk_read(devh, 0x82, (char*)c, sizeof(UsbCommand), 500); |
| 72 | if (ret<0) { |
| 73 | if (ret != -ETIMEDOUT) { |
| 74 | error_occured = 1; |
| 75 | if (return_on_error) |
| 76 | return false; |
| 77 | |
| 78 | fprintf(stderr, "read failed: %s(%d)!\nTrying to reopen device...\n", |
| 79 | usb_strerror(), ret); |
| 80 | |
| 81 | if (devh) { |
| 82 | usb_close(devh); |
| 83 | devh = NULL; |
| 84 | } |
| 85 | while(!OpenProxmark(0)) { sleep(1); } |
| 86 | printf(PROXPROMPT); |
| 87 | fflush(NULL); |
| 88 | |
| 89 | return false; |
| 90 | } |
| 91 | } else { |
| 92 | if (ret && (ret < sizeof(UsbCommand))) { |
| 93 | fprintf(stderr, "Read only %d instead of requested %d bytes!\n", |
| 94 | ret, (int)sizeof(UsbCommand)); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | return ret > 0; |
| 99 | } |
| 100 | |
| 101 | void ReceiveCommand(UsbCommand *c) |
| 102 | { |
| 103 | // printf("%s()\n", __FUNCTION__); |
| 104 | int retval = 0; |
| 105 | do { |
| 106 | retval = ReceiveCommandPoll(c); |
| 107 | if (retval != 1) printf("ReceiveCommandPoll returned %d\n", retval); |
| 108 | } while(retval<0); |
| 109 | // printf("recv %x\n", c->cmd); |
| 110 | } |
| 111 | |
| 112 | usb_dev_handle* findProxmark(int verbose, unsigned int *iface) |
| 113 | { |
| 114 | struct usb_bus *busses, *bus; |
| 115 | usb_dev_handle *handle = NULL; |
| 116 | struct prox_unit units[50]; |
| 117 | int iUnit = 0; |
| 118 | |
| 119 | usb_find_busses(); |
| 120 | usb_find_devices(); |
| 121 | |
| 122 | busses = usb_get_busses(); |
| 123 | |
| 124 | for (bus = busses; bus; bus = bus->next) { |
| 125 | struct usb_device *dev; |
| 126 | |
| 127 | for (dev = bus->devices; dev; dev = dev->next) { |
| 128 | struct usb_device_descriptor *desc = &(dev->descriptor); |
| 129 | |
| 130 | if ((desc->idProduct == 0x4b8f) && (desc->idVendor == 0x9ac4)) { |
| 131 | handle = usb_open(dev); |
| 132 | if (!handle) { |
| 133 | if (verbose) |
| 134 | fprintf(stderr, "open fabiled: %s!\n", usb_strerror()); |
| 135 | //return NULL; |
| 136 | continue; |
| 137 | } |
| 138 | *iface = dev->config[0].interface[0].altsetting[0].bInterfaceNumber; |
| 139 | |
| 140 | struct prox_unit unit = {handle, {0}}; |
| 141 | usb_get_string_simple(handle, desc->iSerialNumber, unit.serial_number, sizeof(unit.serial_number)); |
| 142 | units[iUnit++] = unit; |
| 143 | |
| 144 | //return handle; |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | if (iUnit > 0) { |
| 150 | int iSelection = 0; |
| 151 | |
| 152 | fprintf(stdout, "\nConnected units:\n"); |
| 153 | |
| 154 | for (int i = 0; i < iUnit; i++) { |
| 155 | struct usb_device * dev = usb_device(units[i].handle); |
| 156 | fprintf(stdout, "\t%d. SN: %s [%s/%s]\n", i+1, units[i].serial_number, dev->bus->dirname, dev->filename); |
| 157 | } |
| 158 | if (iUnit > 1) { |
| 159 | while (iSelection < 1 || iSelection > iUnit) { |
| 160 | fprintf(stdout, "Which unit do you want to connect to? "); |
| 161 | fscanf(stdin, "%d", &iSelection); |
| 162 | } |
| 163 | } |
| 164 | else |
| 165 | iSelection = 1; |
| 166 | iSelection --; |
| 167 | |
| 168 | for (int i = 0; i < iUnit; i++) { |
| 169 | if (iSelection == i) continue; |
| 170 | usb_close(units[i].handle); |
| 171 | units[i].handle = NULL; |
| 172 | } |
| 173 | |
| 174 | return units[iSelection].handle; |
| 175 | } |
| 176 | |
| 177 | return NULL; |
| 178 | } |
| 179 | |
| 180 | usb_dev_handle* OpenProxmark(int verbose) |
| 181 | { |
| 182 | int ret; |
| 183 | usb_dev_handle *handle = NULL; |
| 184 | unsigned int iface; |
| 185 | |
| 186 | handle = findProxmark(verbose, &iface); |
| 187 | if (!handle) |
| 188 | return NULL; |
| 189 | |
| 190 | #ifdef __linux__ |
| 191 | /* detach kernel driver first */ |
| 192 | ret = usb_detach_kernel_driver_np(handle, iface); |
| 193 | /* don't complain if no driver attached */ |
| 194 | if (ret<0 && ret != -61 && verbose) |
| 195 | fprintf(stderr, "detach kernel driver failed: (%d) %s!\n", ret, usb_strerror()); |
| 196 | #endif |
| 197 | |
| 198 | // Needed for Windows. Optional for Mac OS and Linux |
| 199 | ret = usb_set_configuration(handle, 1); |
| 200 | if (ret < 0) { |
| 201 | if (verbose) |
| 202 | fprintf(stderr, "configuration set failed: %s!\n", usb_strerror()); |
| 203 | return NULL; |
| 204 | } |
| 205 | |
| 206 | ret = usb_claim_interface(handle, iface); |
| 207 | if (ret < 0) { |
| 208 | if (verbose) |
| 209 | fprintf(stderr, "claim failed: %s!\n", usb_strerror()); |
| 210 | return NULL; |
| 211 | } |
| 212 | claimed_iface = iface; |
| 213 | devh = handle; |
| 214 | return handle; |
| 215 | } |
| 216 | |
| 217 | void CloseProxmark(void) |
| 218 | { |
| 219 | usb_release_interface(devh, claimed_iface); |
| 220 | usb_close(devh); |
| 221 | devh = NULL; |
| 222 | } |