FreeCalypso > hg > fc-sim-tools

annotate uicc/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 abef3d5668b9
children
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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 "efstruct.h"
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15
91
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16 static
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17 restore_bin_transparent(efs, data)
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18 struct ef_struct *efs;
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19 u_char *data;
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20 {
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21 unsigned off, cc;
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22 int rc;
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23
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24 for (off = 0; off < efs->total_size; off += cc) {
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25 cc = efs->total_size - off;
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26 if (cc > 255)
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27 cc = 255;
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28 rc = update_bin_op(off, data + off, cc);
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29 if (rc < 0)
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30 return(rc);
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31 }
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32 return(0);
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33 }
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34
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35 static
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36 restore_bin_records(efs, data)
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37 struct ef_struct *efs;
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38 u_char *data;
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39 {
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40 unsigned recno;
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41 u_char *dp;
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42 int rc;
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43
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44 dp = data;
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45 for (recno = 1; recno <= efs->record_count; recno++) {
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46 rc = update_rec_op(recno, 0x04, dp, efs->record_len);
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47 if (rc < 0)
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48 return(rc);
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49 dp += efs->record_len;
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50 }
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51 return(0);
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52 }
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53
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54 static
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55 restore_bin_cyclic(efs, data)
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56 struct ef_struct *efs;
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57 u_char *data;
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58 {
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59 unsigned count;
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60 u_char *dp;
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61 int rc;
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62
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63 dp = data + efs->total_size;
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64 for (count = 0; count < efs->record_count; count++) {
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65 dp -= efs->record_len;
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66 rc = update_rec_op(0, 0x03, dp, efs->record_len);
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67 if (rc < 0)
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68 return(rc);
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69 }
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70 return(0);
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71 }
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72
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73 cmd_restore_file(argc, argv)
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74 char **argv;
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75 {
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76 int file_id, rc, fd;
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77 struct ef_struct efs;
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78 struct stat st;
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79 u_char *databuf;
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80
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81 if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) &&
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82 isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4])
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83 file_id = strtoul(argv[1], 0, 16);
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84 else
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85 file_id = find_symbolic_file_name(argv[1]);
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86 if (file_id < 0) {
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87 fprintf(stderr,
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88 "error: file ID argument is not a hex value or a recognized symbolic name\n");
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89 return(-1);
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90 }
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91 rc = select_op(file_id);
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92 if (rc < 0)
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93 return(rc);
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94 rc = select_resp_get_ef_struct(&efs);
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95 if (rc < 0)
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96 return(rc);
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97 if (!efs.total_size) {
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98 printf("SIM indicates file of zero length, nothing to do\n");
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99 return(0);
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100 }
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101 fd = open(argv[2], O_RDONLY);
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102 if (fd < 0) {
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103 perror(argv[2]);
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104 return(-1);
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105 }
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106 fstat(fd, &st);
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107 if ((st.st_mode & S_IFMT) != S_IFREG) {
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108 fprintf(stderr, "error: %s is not a regular file\n", argv[2]);
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109 close(fd);
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110 return(-1);
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111 }
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112 if (st.st_size != efs.total_size) {
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113 fprintf(stderr,
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114 "error: length of %s does not match SIM EF length of %u bytes\n",
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115 argv[2], efs.total_size);
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116 close(fd);
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117 return(-1);
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118 }
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119 databuf = malloc(efs.total_size);
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120 if (!databuf) {
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121 perror("malloc for file data");
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122 close(fd);
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123 return(-1);
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124 }
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125 read(fd, databuf, efs.total_size);
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126 close(fd);
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127 switch (efs.structure) {
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128 case 0x01:
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129 /* transparent */
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130 rc = restore_bin_transparent(&efs, databuf);
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131 break;
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132 case 0x02:
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133 /* record-based */
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diff changeset
134 rc = restore_bin_records(&efs, databuf);
10
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parents:
diff changeset
135 break;
91
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parents: 10
diff changeset
136 case 0x06:
10
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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137 /* cyclic */
91
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parents: 10
diff changeset
138 rc = restore_bin_cyclic(&efs, databuf);
10
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parents:
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139 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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140 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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141 free(databuf);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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142 return(rc);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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143 }