annotate uicc/bfsearch.c @ 22:f893cdde97a4

updated top-level README added
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Mar 2021 08:20:20 +0000
parents b70d35f5476f
children
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15
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1 /*
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2 * This module implements a brute force search of file ID space,
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3 * both MF and ADF trees.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <stdio.h>
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8 #include "simresp.h"
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9 #include "file_id.h"
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10
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11 extern u_char *extract_select_resp_tag();
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12
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13 static
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14 bfsearch_dir(path, pathlen, siblings, nsiblings, outf)
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15 unsigned *path, pathlen, *siblings, nsiblings;
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16 FILE *outf;
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17 {
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18 unsigned bfs, n;
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19 unsigned df_children[255], ndfc;
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20 unsigned childpath[8];
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21 u_char *tlv_file_desc, *tlv_file_size;
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22 int rc;
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23
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24 for (n = 0; n < pathlen; n++) {
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25 rc = elem_select_op(path[n]);
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26 if (rc < 0)
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27 return(rc);
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28 if ((sim_resp_sw & 0xFF00) != 0x6100) {
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29 fprintf(stderr,
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30 "error selecting 0x%04X: SW resp 0x%04X\n",
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31 path[n], sim_resp_sw);
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32 return(-1);
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33 }
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34 }
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35 ndfc = 0;
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36 for (bfs = 0; bfs <= 0xFFFF; bfs++) {
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37 if (bfs == FILEID_MF || bfs == FILEID_ADF)
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38 continue;
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39 for (n = 0; n < pathlen; n++) {
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40 if (bfs == path[n])
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41 break;
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42 }
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43 if (n < pathlen)
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44 continue;
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45 for (n = 0; n < nsiblings; n++) {
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46 if (bfs == siblings[n])
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47 break;
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48 }
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49 if (n < nsiblings)
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50 continue;
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51 rc = elem_select_op(bfs);
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52 if (rc < 0)
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53 return(rc);
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54 if (sim_resp_sw == 0x6A82)
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55 continue;
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56 if ((sim_resp_sw & 0xFF00) != 0x6100) {
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57 for (n = 0; n < pathlen; n++)
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58 fprintf(outf, "%04X/", path[n]);
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59 fprintf(outf, "%04X: SW response 0x%04X\n", bfs,
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60 sim_resp_sw);
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61 continue;
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62 }
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63 rc = get_response_op();
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64 if (rc < 0)
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65 return(rc);
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66 tlv_file_desc = extract_select_resp_tag(0x82);
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67 if (!tlv_file_desc)
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68 return(-1);
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69 if (tlv_file_desc[1] < 1) {
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70 fprintf(stderr,
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71 "error: file desc TLV object is too short\n");
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72 return(-1);
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73 }
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74 for (n = 0; n < pathlen; n++)
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75 fprintf(outf, "%04X/", path[n]);
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76 fprintf(outf, "%04X: file desc 0x%02X", bfs, tlv_file_desc[2]);
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77 if ((tlv_file_desc[2] & 0xBF) == 0x38) {
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78 fprintf(outf, ", DF\n");
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79 if (ndfc < 255)
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80 df_children[ndfc++] = bfs;
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81 } else {
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82 tlv_file_size = extract_select_resp_tag(0x80);
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83 if (tlv_file_size && tlv_file_size[1] == 2)
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84 fprintf(outf, ", total size %u",
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85 (tlv_file_size[2] << 8) |
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86 tlv_file_size[3]);
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87 if (tlv_file_desc[1] == 5)
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88 fprintf(outf, ", %u records of %u bytes",
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89 tlv_file_desc[6],
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90 (tlv_file_desc[4] << 8) |
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91 tlv_file_desc[5]);
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92 putc('\n', outf);
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93 }
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94 rc = elem_select_op(path[pathlen-1]);
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95 if (rc < 0)
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96 return(rc);
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97 if ((sim_resp_sw & 0xFF00) != 0x6100) {
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98 fprintf(stderr,
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99 "reselecting starting file ID 0x%04X: SW resp 0x%04X\n",
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100 path[pathlen-1], sim_resp_sw);
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101 return(-1);
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102 }
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103 }
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104 if (pathlen >= 8)
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105 return(0);
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106 for (n = 0; n < pathlen; n++)
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107 childpath[n] = path[n];
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108 for (n = 0; n < ndfc; n++) {
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109 childpath[pathlen] = df_children[n];
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110 rc = bfsearch_dir(childpath, pathlen + 1, df_children, ndfc,
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111 outf);
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112 if (rc < 0)
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113 return(rc);
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114 }
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115 return(0);
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116 }
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117
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118 cmd_bfsearch_mf(argc, argv, outf)
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119 char **argv;
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120 FILE *outf;
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121 {
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122 unsigned initpath;
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123
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124 initpath = FILEID_MF;
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125 return bfsearch_dir(&initpath, 1, &initpath, 1, outf);
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126 }
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127
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128 cmd_bfsearch_adf(argc, argv, outf)
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129 char **argv;
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130 FILE *outf;
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131 {
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132 unsigned initpath;
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133
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134 initpath = FILEID_ADF;
b70d35f5476f fc-uicc-tool ported over
Mychaela Falconia <falcon@freecalypso.org>
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135 return bfsearch_dir(&initpath, 1, &initpath, 1, outf);
b70d35f5476f fc-uicc-tool ported over
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 }