FreeCalypso > hg > fc-pcsc-tools

annotate simtool/restorebin.c @ 74:8562d8508cf2

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grcard2-set-{adm,super}-hex commands implemented It appears that GrcardSIM2 cards allow arbitrary 64-bit keys for ADM and SUPER ADM, not necessarily consisting of ASCII digits like the specs require for standard PIN and PUK, and pySim-prog.py in fact sets the ADM key to 4444444444444444 in hex by default, which is not an ASCII digit string. If the cards allow such keys, we need to support them too.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 16 Feb 2021 04:10:36 +0000
parents a6ca422323b9
children 54cebab70c19
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1 /*
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2 * This module implements the restore-file command; this command
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3 * reads binary files previously saved with the savebin command
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4 * and writes the backed-up bits back to the SIM.
1
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5 */
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6
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7 #include <sys/types.h>
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8 #include <sys/file.h>
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9 #include <sys/stat.h>
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10 #include <ctype.h>
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11 #include <stdio.h>
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12 #include <stdlib.h>
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13 #include <unistd.h>
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14 #include "curfile.h"
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16 static
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17 restore_transparent(data)
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18 u_char *data;
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19 {
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20 unsigned off, cc;
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21 int rc;
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22
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23 for (off = 0; off < curfile_total_size; off += cc) {
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24 cc = curfile_total_size - off;
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25 if (cc > 255)
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26 cc = 255;
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27 rc = update_bin_op(off, data + off, cc);
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28 if (rc < 0)
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29 return(rc);
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30 }
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31 return(0);
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32 }
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34 static
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35 restore_records(data)
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36 u_char *data;
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37 {
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38 unsigned recno;
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39 u_char *dp;
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40 int rc;
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41
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42 dp = data;
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43 for (recno = 1; recno <= curfile_record_count; recno++) {
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44 rc = update_rec_op(recno, 0x04, dp, curfile_record_len);
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45 if (rc < 0)
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46 return(rc);
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47 dp += curfile_record_len;
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48 }
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49 return(0);
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50 }
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51
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52 cmd_restore_file(argc, argv)
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53 char **argv;
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54 {
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55 int file_id, rc, fd;
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56 struct stat st;
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57 u_char *databuf;
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58
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59 if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) &&
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60 isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4])
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61 file_id = strtoul(argv[1], 0, 16);
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62 else
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63 file_id = find_symbolic_file_name(argv[1]);
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64 if (file_id < 0) {
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65 fprintf(stderr,
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66 "error: file ID argument is not a hex value or a recognized symbolic name\n");
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67 return(-1);
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68 }
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69 rc = select_op(file_id);
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70 if (rc < 0)
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71 return(rc);
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72 rc = parse_ef_select_response();
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73 if (rc < 0)
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74 return(rc);
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75 if (!curfile_total_size) {
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76 printf("SIM indicates file of zero length, nothing to do\n");
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77 return(0);
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78 }
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79 fd = open(argv[2], O_RDONLY);
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80 if (fd < 0) {
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81 perror(argv[2]);
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82 return(-1);
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83 }
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84 fstat(fd, &st);
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85 if ((st.st_mode & S_IFMT) != S_IFREG) {
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86 fprintf(stderr, "error: %s is not a regular file\n", argv[2]);
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87 close(fd);
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88 return(-1);
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89 }
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90 if (st.st_size != curfile_total_size) {
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91 fprintf(stderr,
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92 "error: length of %s does not match SIM EF length of %u bytes\n",
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93 argv[2], curfile_total_size);
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94 close(fd);
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95 return(-1);
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96 }
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97 databuf = malloc(curfile_total_size);
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98 if (!databuf) {
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99 perror("malloc for file data");
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100 close(fd);
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101 return(-1);
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102 }
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103 read(fd, databuf, curfile_total_size);
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104 close(fd);
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105 switch (curfile_structure) {
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106 case 0x00:
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107 /* transparent */
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108 rc = restore_transparent(databuf);
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109 break;
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110 case 0x01:
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111 /* record-based */
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112 rc = restore_records(databuf);
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113 break;
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114 case 0x03:
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115 fprintf(stderr, "error: cyclic files are not supported\n");
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116 rc = -1;
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117 }
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118 free(databuf);
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119 return(rc);
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120 }