1 | //FIXME Not checked on threadsafety yet; after checking please remove this line
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2 | #include "globals.h"
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3 |
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4 | int chk_srvid_match(ECM_REQUEST *er, SIDTAB *sidtab)
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5 | {
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6 | int i, rc=0;
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7 |
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8 | if (!sidtab->num_caid)
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9 | rc|=1;
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10 | else
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11 | for (i=0; (i<sidtab->num_caid) && (!(rc&1)); i++)
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12 | if (er->caid==sidtab->caid[i]) rc|=1;
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13 |
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14 | if (!sidtab->num_provid)
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15 | rc|=2;
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16 | else
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17 | for (i=0; (i<sidtab->num_provid) && (!(rc&2)); i++)
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18 | if (er->prid==sidtab->provid[i]) rc|=2;
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19 |
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20 | if (!sidtab->num_srvid)
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21 | rc|=4;
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22 | else
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23 | for (i=0; (i<sidtab->num_srvid) && (!(rc&4)); i++)
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24 | if (er->srvid==sidtab->srvid[i]) rc|=4;
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25 |
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26 | return(rc==7);
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27 | }
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28 |
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29 | int chk_srvid(struct s_client *cl, ECM_REQUEST *er)
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30 | {
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31 | int nr, rc=0;
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32 | SIDTAB *sidtab;
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33 |
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34 | if (!cl->sidtabok)
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35 | {
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36 | if (!cl->sidtabno) return(1);
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37 | rc=1;
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38 | }
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39 | for (nr=0, sidtab=cfg->sidtab; sidtab; sidtab=sidtab->next, nr++)
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40 | if (sidtab->num_caid | sidtab->num_provid | sidtab->num_srvid)
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41 | {
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42 | if ((cl->sidtabno&((SIDTABBITS)1<<nr)) &&
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43 | (chk_srvid_match(er, sidtab)))
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44 | return(0);
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45 | if ((cl->sidtabok&((SIDTABBITS)1<<nr)) &&
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46 | (chk_srvid_match(er, sidtab)))
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47 | rc=1;
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48 | }
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49 | return(rc);
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50 | }
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51 |
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52 | int chk_srvid_match_by_caid_prov(ushort caid, ulong provid, SIDTAB *sidtab)
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53 | {
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54 | int i, rc=0;
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55 |
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56 | if (!sidtab->num_caid)
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57 | rc|=1;
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58 | else
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59 | for (i=0; (i<sidtab->num_caid) && (!(rc&1)); i++)
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60 | if (caid==sidtab->caid[i]) rc|=1;
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61 |
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62 | if (!sidtab->num_provid)
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63 | rc|=2;
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64 | else
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65 | for (i=0; (i<sidtab->num_provid) && (!(rc&2)); i++)
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66 | if (provid==sidtab->provid[i]) rc|=2;
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67 |
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68 | return(rc==3);
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69 | }
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70 |
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71 | int chk_srvid_by_caid_prov(struct s_client *cl, ushort caid, ulong provid, int chk_neg) {
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72 | int nr, rc=0;
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73 | SIDTAB *sidtab;
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74 |
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75 | if (!cl->sidtabok)
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76 | {
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77 | if (chk_neg && !cl->sidtabno) return(1);
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78 | rc=1;
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79 | }
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80 | for (nr=0, sidtab=cfg->sidtab; sidtab; sidtab=sidtab->next, nr++)
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81 | if (sidtab->num_caid | sidtab->num_provid | sidtab->num_srvid)
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82 | {
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83 | if (chk_neg && (cl->sidtabno&((SIDTABBITS)1<<nr)) &&
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84 | (chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
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85 | return(0);
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86 | if ((cl->sidtabok&((SIDTABBITS)1<<nr)) &&
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87 | (chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
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88 | rc=1;
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89 | }
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90 | return(rc);
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91 |
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92 | }
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93 |
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94 | // server filter for newcamd
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95 | int chk_sfilter(ECM_REQUEST *er, PTAB *ptab)
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96 | {
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97 | int i, j, pi, rc=1;
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98 | ushort caid, scaid;
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99 | ulong prid, sprid;
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100 |
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101 | if (!ptab) return(1);
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102 |
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103 | caid = er->caid;
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104 | prid = er->prid;
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105 | pi = cur_client()->port_idx;
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106 |
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107 | if (ptab->nports && ptab->ports[pi].ftab.nfilts)
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108 | {
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109 | for( rc=j=0; (!rc) && (j<ptab->ports[pi].ftab.nfilts); j++ )
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110 | {
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111 | scaid = ptab->ports[pi].ftab.filts[j].caid;
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112 | if (caid==0||(caid!=0 && caid==scaid))
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113 | {
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114 | for( i=0; (!rc) && i<ptab->ports[pi].ftab.filts[j].nprids; i++ )
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115 | {
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116 | sprid=ptab->ports[pi].ftab.filts[j].prids[i];
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117 | cs_debug("trying server filter %04X:%06X", scaid, sprid);
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118 | if (prid==sprid)
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119 | {
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120 | rc=1;
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121 | cs_debug("%04X:%06X allowed by server filter %04X:%06X",
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122 | caid, prid, scaid, sprid);
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123 | }
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124 | }
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125 | }
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126 | }
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127 | if(!rc)
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128 | {
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129 | cs_debug("no match, %04X:%06X rejected by server filters", caid, prid);
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130 | snprintf( er->msglog, MSGLOGSIZE, "no server match %04X:%06X",
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131 | caid, (unsigned int) prid );
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132 |
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133 | if (!er->rcEx) er->rcEx=(E1_LSERVER<<4)|E2_IDENT;
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134 | return(rc);
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135 | }
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136 | }
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137 | return (rc);
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138 | }
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139 |
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140 | static int chk_chid(ECM_REQUEST *er, FTAB *fchid, char *D_USE(type), char *D_USE(name))
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141 | {
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142 | int rc=1, i, j;
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143 |
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144 | if( (er->caid & 0xFF00)!=0x600 ) return 1;
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145 | if( !er->chid ) return 1;
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146 | if( !fchid->nfilts ) return 1;
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147 |
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148 | for( i=rc=0; (!rc) && i<fchid->nfilts; i++ )
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149 | if( er->caid == fchid->filts[i].caid )
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150 | for( j=0; (!rc) && j<fchid->filts[i].nprids; j++ )
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151 | {
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152 | cs_debug("trying %s '%s' CHID filter %04X:%04X",
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153 | type, name, fchid->filts[i].caid, fchid->filts[i].prids[j]);
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154 | if( er->chid == fchid->filts[i].prids[j] )
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155 | {
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156 | cs_debug("%04X:%04X allowed by %s '%s' CHID filter %04X:%04X",
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157 | er->caid, er->chid, type, name, fchid->filts[i].caid,
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158 | fchid->filts[i].prids[j]);
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159 | rc=1;
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160 | }
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161 | }
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162 |
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163 | if( !rc )
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164 | {
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165 | cs_debug("no match, %04X:%04X rejected by %s '%s' CHID filter(s)",
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166 | er->caid, er->chid, type, name);
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167 | }
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168 | return (rc);
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169 | }
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170 |
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171 | int chk_ufilters(ECM_REQUEST *er)
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172 | {
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173 | int i, j, rc;
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174 | ushort ucaid;
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175 | ulong uprid;
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176 |
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177 | rc=1;
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178 | if( cur_client()->ftab.nfilts )
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179 | {
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180 | FTAB *f = &cur_client()->ftab;
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181 | for( i=rc=0; (!rc) && (i<f->nfilts); i++ )
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182 | {
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183 | ucaid = f->filts[i].caid;
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184 | if( er->caid==0 || ucaid==0 || (er->caid!=0 && er->caid==ucaid) )
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185 | {
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186 | for( j=rc=0; (!rc) && (j<f->filts[i].nprids); j++ )
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187 | {
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188 | uprid = f->filts[i].prids[j];
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189 | cs_debug("trying user '%s' filter %04X:%06X",
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190 | cur_client()->usr, ucaid, uprid);
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191 | if( er->prid == uprid )
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192 | {
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193 | rc=1;
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194 | cs_debug("%04X:%06X allowed by user '%s' filter %04X:%06X",
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195 | er->caid, er->prid, cur_client()->usr, ucaid, uprid);
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196 | }
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197 | }
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198 | }
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199 | }
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200 | if( !rc ) {
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201 | cs_debug("no match, %04X:%06X rejected by user '%s' filters",
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202 | er->caid, er->prid, cur_client()->usr);
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203 | snprintf( er->msglog, MSGLOGSIZE, "no card support %04X:%06X",
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204 | er->caid, (unsigned int) er->prid );
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205 |
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206 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_IDENT;
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207 | return (rc);
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208 | }
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209 | }
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210 |
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211 | if( !(rc=chk_class(er, &cur_client()->cltab, "user", cur_client()->usr)) ) {
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212 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_CLASS;
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213 | }
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214 | else if( !(rc=chk_chid(er, &cur_client()->fchid, "user", cur_client()->usr)) )
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215 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_CHID;
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216 |
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217 | if( rc ) er->rcEx=0;
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218 |
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219 | return (rc);
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220 | }
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221 |
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222 | int chk_rsfilter(struct s_reader * reader, ECM_REQUEST *er)
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223 | {
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224 | int i, rc=1;
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225 | ushort caid;
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226 | ulong prid;
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227 |
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228 | if( reader->ncd_disable_server_filt )
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229 | {
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230 | cs_debug("%04X:%06X allowed - server filters disabled",
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231 | er->caid, er->prid);
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232 | return 1;
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233 | }
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234 |
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235 | rc=prid=0;
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236 | caid = reader->caid[0];
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237 | if( caid==er->caid )
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238 | {
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239 | for( i=0; (!rc) && (i<reader->nprov); i++ )
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240 | {
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241 | prid = (ulong)((reader->prid[i][0]<<16) |
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242 | (reader->prid[i][1]<<8) |
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243 | (reader->prid[i][2]));
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244 | cs_debug("trying server '%s' filter %04X:%06X",
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245 | reader->device, caid, prid);
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246 | if( prid==er->prid )
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247 | {
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248 | rc=1;
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249 | cs_debug("%04X:%06X allowed by server '%s' filter %04X:%06X",
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250 | er->caid, er->prid, reader->device, caid, prid);
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251 | }
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252 | }
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253 | }
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254 | if(!rc) {
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255 | cs_debug("no match, %04X:%06X rejected by server '%s' filters",
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256 | er->caid, er->prid, reader->device);
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257 | if( !er->rcEx ) er->rcEx=(E1_SERVER<<4)|E2_IDENT;
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258 | return 0;
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259 | }
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260 |
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261 | return(rc);
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262 | }
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263 |
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264 | int chk_rfilter(ECM_REQUEST *er, struct s_reader *rdr)
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265 | {
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266 | int i, j, rc=1;
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267 | ushort caid=0;
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268 | ulong prid=0;
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269 |
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270 | if( rdr->ftab.nfilts )
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271 | {
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272 | for( rc=i=0; (!rc) && (i<rdr->ftab.nfilts); i++ )
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273 | {
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274 | caid = rdr->ftab.filts[i].caid;
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275 | if( (caid!=0 && caid==er->caid) || caid==0 )
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276 | {
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277 | for( j=0; (!rc) && (j<rdr->ftab.filts[i].nprids); j++)
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278 | {
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279 | prid = rdr->ftab.filts[i].prids[j];
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280 | cs_debug("trying reader '%s' filter %04X:%06X",
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281 | rdr->label, caid, prid);
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282 | if( prid==er->prid )
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283 | {
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284 | rc=1;
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285 | cs_debug("%04X:%06X allowed by reader '%s' filter %04X:%06X",
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286 | er->caid, er->prid, rdr->label, caid, prid);
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287 | }
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288 | }
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289 | }
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290 | }
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291 | if(!rc) {
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292 | cs_debug("no match, %04X:%06X rejected by reader '%s' filters",
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293 | er->caid, er->prid, rdr->label);
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294 | return 0;
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295 | }
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296 | }
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297 |
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298 | return(rc);
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299 | }
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300 |
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301 | int chk_avail_reader(ECM_REQUEST *er, struct s_reader *rdr)
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302 | {
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303 | if( !chk_rfilter(er, rdr) ) {
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304 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_IDENT;
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305 | return 0;
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306 | }
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307 | if( !chk_class(er, &rdr->cltab, "reader", rdr->label) ) {
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308 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_CLASS;
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309 | return 0;
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310 | }
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311 | if( !chk_chid(er, &rdr->fchid, "reader", rdr->label) ) {
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312 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_CHID;
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313 | return 0;
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314 | }
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315 | //fixme re-activated code for testing
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316 | if( rdr->typ=='r' )
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317 | {
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318 | if( rdr->qlen>=rdr->maxqlen )
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319 | {
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320 | cs_log("reader '%s' max. queue length(%d) reached, rejected", rdr->label, rdr->qlen);
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321 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_QUEUE;
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322 | return 0;
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323 | }
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324 | else {
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325 | cs_log("reader '%s' qlen=%d", rdr->label, rdr->qlen);
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326 | rdr->qlen++;
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327 | }
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328 | }
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329 |
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330 | return 1;
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331 | }
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332 |
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333 | int chk_ctab(ushort caid, CAIDTAB *ctab) {
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334 | if (!caid || !ctab->caid[0])
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335 | return 1;
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336 |
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337 | int i;
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338 | for (i=0;i<CS_MAXCAIDTAB;i++)
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339 | {
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340 | if (!ctab->caid[i]) {
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341 | return 0;
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342 | }
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343 | if ((caid & ctab->mask[i]) == ctab->caid[i])
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344 | return 1;
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345 | }
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346 | return 0;
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347 | }
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348 |
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349 | int matching_reader(ECM_REQUEST *er, struct s_reader *rdr) {
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350 | //Checking connected & group valid:
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351 | if (!((rdr->fd) && (rdr->grp&cur_client()->grp)))
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352 | return(0);
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353 |
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354 | //Checking enabled and not deleted:
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355 | if (!rdr->enable || rdr->deleted) {
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356 | cs_debug_mask(D_TRACE, "reader disabled/deleted %s", rdr->label);
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357 | return(0);
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358 | }
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359 |
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360 | //Schlocke reader-defined function, reader-self-check:
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361 | if (rdr->ph.c_available && !rdr->ph.c_available(rdr, AVAIL_CHECK_CONNECTED)) {
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362 | cs_debug_mask(D_TRACE, "reader unavailable %s", rdr->label);
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363 | return 0;
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364 | }
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365 |
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366 | //Checking caids:
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367 | if (!chk_ctab(er->ocaid, &rdr->ctab) && !chk_ctab(er->caid, &rdr->ctab)) {
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368 | cs_debug_mask(D_TRACE, "caid %04X not found in caidlist reader %s", er->caid, rdr->label);
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369 | return 0;
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370 | }
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371 |
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372 | //Checking services:
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373 | if (!chk_srvid(rdr->client, er)) {
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374 | cs_debug_mask(D_TRACE, "service %04X not matching reader %s", er->srvid, rdr->label);
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375 | return(0);
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376 | }
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377 |
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378 | //Checking ident:
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379 | if (!chk_rfilter(er, rdr)) {
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380 | cs_debug_mask(D_TRACE, "r-filter reader %s", rdr->label);
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381 | return(0);
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382 | }
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383 |
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384 | //Check ECM nanos:
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385 | if (!chk_class(er, &rdr->cltab, "reader", rdr->label)) {
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386 | cs_debug_mask(D_TRACE, "class filter reader %s", rdr->label);
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387 | return(0);
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388 | }
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389 |
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390 | //Checking chid:
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391 | if (!chk_chid(er, &rdr->fchid, "reader", rdr->label)) {
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392 | cs_debug_mask(D_TRACE, "chid filter reader %s", rdr->label);
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393 | return(0);
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394 | }
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395 |
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396 | //All checks done, reader is matching!
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397 | return(1);
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398 | }
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