FreeCalypso > hg > fc-sim-tools

annotate simtool/restorebin.c @ 93:6041c601304d

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fcsim1-mkprov: revert OTA key addition It appears that GrcardSIM2 cards (which is what we got for FCSIM1) do not support OTA after all, contrary to what we were previously led to believe by some tech support emails from Grcard - apparently those support emails and OTA descriptions referred to some other card model(s).
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 21 Apr 2021 05:38:39 +0000
parents ddd767f6e15b
children
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10
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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.
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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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15
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16 restore_bin_transparent(data)
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17 u_char *data;
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18 {
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19 unsigned off, cc;
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20 int rc;
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21
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22 for (off = 0; off < curfile_total_size; off += cc) {
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23 cc = curfile_total_size - off;
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24 if (cc > 255)
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25 cc = 255;
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26 rc = update_bin_op(off, data + off, cc);
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27 if (rc < 0)
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28 return(rc);
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29 }
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30 return(0);
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31 }
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32
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33 restore_bin_records(data)
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34 u_char *data;
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35 {
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36 unsigned recno;
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37 u_char *dp;
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38 int rc;
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39
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40 dp = data;
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41 for (recno = 1; recno <= curfile_record_count; recno++) {
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42 rc = update_rec_op(recno, 0x04, dp, curfile_record_len);
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43 if (rc < 0)
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44 return(rc);
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45 dp += curfile_record_len;
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46 }
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47 return(0);
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48 }
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49
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50 restore_bin_cyclic(data)
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51 u_char *data;
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52 {
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53 unsigned count;
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54 u_char *dp;
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55 int rc;
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56
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57 dp = data + curfile_total_size;
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58 for (count = 0; count < curfile_record_count; count++) {
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59 dp -= curfile_record_len;
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60 rc = update_rec_op(0, 0x03, dp, curfile_record_len);
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61 if (rc < 0)
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62 return(rc);
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63 }
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64 return(0);
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65 }
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66
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67 cmd_restore_file(argc, argv)
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68 char **argv;
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69 {
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70 int file_id, rc, fd;
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71 struct stat st;
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72 u_char *databuf;
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73
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74 if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) &&
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75 isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4])
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76 file_id = strtoul(argv[1], 0, 16);
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77 else
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78 file_id = find_symbolic_file_name(argv[1]);
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79 if (file_id < 0) {
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80 fprintf(stderr,
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81 "error: file ID argument is not a hex value or a recognized symbolic name\n");
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82 return(-1);
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83 }
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84 rc = select_op(file_id);
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85 if (rc < 0)
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86 return(rc);
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87 rc = parse_ef_select_response();
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88 if (rc < 0)
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89 return(rc);
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90 if (!curfile_total_size) {
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91 printf("SIM indicates file of zero length, nothing to do\n");
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92 return(0);
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93 }
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94 fd = open(argv[2], O_RDONLY);
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95 if (fd < 0) {
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96 perror(argv[2]);
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97 return(-1);
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98 }
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99 fstat(fd, &st);
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100 if ((st.st_mode & S_IFMT) != S_IFREG) {
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101 fprintf(stderr, "error: %s is not a regular file\n", argv[2]);
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102 close(fd);
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103 return(-1);
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104 }
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105 if (st.st_size != curfile_total_size) {
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106 fprintf(stderr,
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107 "error: length of %s does not match SIM EF length of %u bytes\n",
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108 argv[2], curfile_total_size);
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109 close(fd);
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110 return(-1);
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111 }
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112 databuf = malloc(curfile_total_size);
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113 if (!databuf) {
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114 perror("malloc for file data");
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115 close(fd);
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116 return(-1);
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117 }
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118 read(fd, databuf, curfile_total_size);
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119 close(fd);
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120 switch (curfile_structure) {
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121 case 0x00:
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122 /* transparent */
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123 rc = restore_bin_transparent(databuf);
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124 break;
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125 case 0x01:
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126 /* record-based */
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127 rc = restore_bin_records(databuf);
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128 break;
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129 case 0x03:
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130 /* cyclic */
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131 rc = restore_bin_cyclic(databuf);
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132 break;
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133 }
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134 free(databuf);
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135 return(rc);
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136 }