FreeCalypso > hg > fc-sim-tools

annotate uicc/restorebin.c @ 91:abef3d5668b9

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fc-uicc-tool: restore-file ported over from fc-simtool
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 11 Apr 2021 04:44:34 +0000
parents simtool/restorebin.c@ddd767f6e15b
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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Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
134 rc = restore_bin_records(&efs, databuf);
10
ddd767f6e15b fc-simtool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 break;
91
abef3d5668b9 fc-uicc-tool: restore-file ported over from fc-simtool
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
136 case 0x06:
10
ddd767f6e15b fc-simtool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 /* cyclic */
91
abef3d5668b9 fc-uicc-tool: restore-file ported over from fc-simtool
Mychaela Falconia <falcon@freecalypso.org>
parents: 10
diff changeset
138 rc = restore_bin_cyclic(&efs, databuf);
10
ddd767f6e15b fc-simtool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 break;
ddd767f6e15b fc-simtool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 }
ddd767f6e15b fc-simtool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 free(databuf);
ddd767f6e15b fc-simtool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 return(rc);
ddd767f6e15b fc-simtool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 }