1 | #include "globals.h"
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2 |
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3 | static int chk_srvid_match(ECM_REQUEST *er, SIDTAB *sidtab)
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4 | {
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5 | int i, rc=0;
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6 |
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7 | if (!sidtab->num_caid)
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8 | rc|=1;
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9 | else
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10 | for (i=0; (i<sidtab->num_caid) && (!(rc&1)); i++)
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11 | if (er->caid==sidtab->caid[i]) rc|=1;
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12 |
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13 | if (!sidtab->num_provid)
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14 | rc|=2;
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15 | else
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16 | for (i=0; (i<sidtab->num_provid) && (!(rc&2)); i++)
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17 | if (er->prid==sidtab->provid[i]) rc|=2;
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18 |
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19 | if (!sidtab->num_srvid)
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20 | rc|=4;
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21 | else
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22 | for (i=0; (i<sidtab->num_srvid) && (!(rc&4)); i++)
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23 | if (er->srvid==sidtab->srvid[i]) rc|=4;
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24 |
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25 | return(rc==7);
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26 | }
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27 |
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28 | int chk_srvid(ECM_REQUEST *er, int idx)
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29 | {
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30 | int nr, rc=0;
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31 | SIDTAB *sidtab;
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32 |
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33 | if (!client[idx].sidtabok)
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34 | {
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35 | if (!client[idx].sidtabno) return(1);
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36 | rc=1;
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37 | }
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38 | for (nr=0, sidtab=cfg->sidtab; sidtab; sidtab=sidtab->next, nr++)
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39 | if (sidtab->num_caid | sidtab->num_provid | sidtab->num_srvid)
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40 | {
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41 | if ((client[idx].sidtabno&(1<<nr)) &&
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42 | (chk_srvid_match(er, sidtab)))
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43 | return(0);
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44 | if ((client[idx].sidtabok&(1<<nr)) &&
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45 | (chk_srvid_match(er, sidtab)))
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46 | rc=1;
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47 | }
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48 | return(rc);
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49 | }
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50 |
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51 | // server filter for newcamd
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52 | int chk_sfilter(ECM_REQUEST *er, PTAB *ptab)
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53 | {
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54 | int i, j, pi, rc=1;
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55 | ushort caid, scaid;
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56 | ulong prid, sprid;
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57 |
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58 | if (!ptab) return(1);
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59 |
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60 | caid = er->caid;
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61 | prid = er->prid;
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62 | pi = client[cs_idx].port_idx;
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63 |
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64 | if (ptab->nports && ptab->ports[pi].ftab.nfilts)
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65 | {
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66 | for( rc=j=0; (!rc) && (j<ptab->ports[pi].ftab.nfilts); j++ )
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67 | {
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68 | scaid = ptab->ports[pi].ftab.filts[j].caid;
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69 | if (caid==0||(caid!=0 && caid==scaid))
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70 | {
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71 | for( i=0; (!rc) && i<ptab->ports[pi].ftab.filts[j].nprids; i++ )
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72 | {
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73 | sprid=ptab->ports[pi].ftab.filts[j].prids[i];
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74 | cs_debug("trying server filter %04X:%06X", scaid, sprid);
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75 | if (prid==sprid)
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76 | {
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77 | rc=1;
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78 | cs_debug("%04X:%06X allowed by server filter %04X:%06X",
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79 | caid, prid, scaid, sprid);
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80 | }
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81 | }
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82 | }
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83 | }
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84 | if(!rc)
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85 | {
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86 | cs_debug("no match, %04X:%06X rejected by server filters", caid, prid);
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87 | if (!er->rcEx) er->rcEx=(E1_LSERVER<<4)|E2_IDENT;
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88 | return(rc);
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89 | }
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90 | }
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91 | return (rc);
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92 | }
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93 |
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94 | static int chk_chid(ECM_REQUEST *er, FTAB *fchid, char *type, char *name)
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95 | {
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96 | int rc=1, i, j;
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97 |
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98 | if( (er->caid & 0xFF00)!=0x600 ) return 1;
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99 | if( !er->chid ) return 1;
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100 | if( !fchid->nfilts ) return 1;
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101 |
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102 | for( i=rc=0; (!rc) && i<fchid->nfilts; i++ )
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103 | if( er->caid == fchid->filts[i].caid )
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104 | for( j=0; (!rc) && j<fchid->filts[i].nprids; j++ )
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105 | {
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106 | cs_debug("trying %s '%s' CHID filter %04X:%04X",
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107 | type, name, fchid->filts[i].caid, fchid->filts[i].prids[j]);
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108 | if( er->chid == fchid->filts[i].prids[j] )
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109 | {
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110 | cs_debug("%04X:%04X allowed by %s '%s' CHID filter %04X:%04X",
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111 | er->caid, er->chid, type, name, fchid->filts[i].caid,
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112 | fchid->filts[i].prids[j]);
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113 | rc=1;
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114 | }
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115 | }
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116 |
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117 | if( !rc ) cs_debug("no match, %04X:%04X rejected by %s '%s' CHID filter(s)",
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118 | er->caid, er->chid, type, name);
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119 |
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120 | return (rc);
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121 | }
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122 |
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123 | int chk_ufilters(ECM_REQUEST *er)
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124 | {
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125 | int i, j, rc;
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126 | ushort ucaid;
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127 | ulong uprid;
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128 |
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129 | rc=1;
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130 | if( client[cs_idx].ftab.nfilts )
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131 | {
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132 | FTAB *f = &client[cs_idx].ftab;
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133 | for( i=rc=0; (!rc) && (i<f->nfilts); i++ )
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134 | {
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135 | ucaid = f->filts[i].caid;
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136 | if( er->caid==0 || ucaid==0 || (er->caid!=0 && er->caid==ucaid) )
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137 | {
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138 | for( j=rc=0; (!rc) && (j<f->filts[i].nprids); j++ )
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139 | {
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140 | uprid = f->filts[i].prids[j];
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141 | cs_debug("trying user '%s' filter %04X:%06X",
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142 | client[cs_idx].usr, ucaid, uprid);
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143 | if( er->prid == uprid )
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144 | {
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145 | rc=1;
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146 | cs_debug("%04X:%06X allowed by user '%s' filter %04X:%06X",
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147 | er->caid, er->prid, client[cs_idx].usr, ucaid, uprid);
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148 | }
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149 | }
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150 | }
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151 | }
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152 | if( !rc ) {
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153 | cs_debug("no match, %04X:%06X rejected by user '%s' filters",
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154 | er->caid, er->prid, client[cs_idx].usr);
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155 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_IDENT;
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156 | return (rc);
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157 | }
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158 | }
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159 |
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160 | if( !(rc=chk_class(er, &client[cs_idx].cltab, "user", client[cs_idx].usr)) ) {
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161 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_CLASS;
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162 | }
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163 | else if( !(rc=chk_chid(er, &client[cs_idx].fchid, "user", client[cs_idx].usr)) )
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164 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_CHID;
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165 |
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166 | if( rc ) er->rcEx=0;
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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_rsfilter(ECM_REQUEST *er, int disable_server_filt)
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172 | {
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173 | int i, rc=1;
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174 | ushort caid;
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175 | ulong prid;
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176 |
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177 | if( disable_server_filt )
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178 | {
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179 | cs_debug("%04X:%06X allowed - server filters disabled",
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180 | er->caid, er->prid);
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181 | return 1;
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182 | }
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183 |
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184 | rc=prid=0;
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185 | caid = reader[ridx].caid[0];
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186 | if( caid==er->caid )
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187 | {
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188 | for( i=0; (!rc) && (i<reader[ridx].nprov); i++ )
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189 | {
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190 | prid = (ulong)((reader[ridx].prid[i][0]<<16) |
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191 | (reader[ridx].prid[i][1]<<8) |
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192 | (reader[ridx].prid[i][2]));
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193 | cs_debug("trying server '%s' filter %04X:%06X",
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194 | reader[ridx].device, caid, prid);
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195 | if( prid==er->prid )
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196 | {
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197 | rc=1;
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198 | cs_debug("%04X:%06X allowed by server '%s' filter %04X:%06X",
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199 | er->caid, er->prid, reader[ridx].device, caid, prid);
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200 | }
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201 | }
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202 | }
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203 | if(!rc) {
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204 | cs_debug("no match, %04X:%06X rejected by server '%s' filters",
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205 | er->caid, er->prid, reader[ridx].device);
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206 | if( !er->rcEx ) er->rcEx=(E1_SERVER<<4)|E2_IDENT;
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207 | return 0;
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208 | }
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209 |
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210 | return(rc);
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211 | }
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212 |
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213 | int chk_rfilter(ECM_REQUEST *er, struct s_reader *rdr)
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214 | {
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215 | int i, j, rc=1;
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216 | ushort caid=0;
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217 | ulong prid=0;
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218 |
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219 | if( rdr->ftab.nfilts )
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220 | {
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221 | for( rc=i=0; (!rc) && (i<rdr->ftab.nfilts); i++ )
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222 | {
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223 | caid = rdr->ftab.filts[i].caid;
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224 | if( (caid!=0 && caid==er->caid) || caid==0 )
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225 | {
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226 | for( j=0; (!rc) && (j<rdr->ftab.filts[i].nprids); j++)
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227 | {
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228 | prid = rdr->ftab.filts[i].prids[j];
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229 | cs_debug("trying reader '%s' filter %04X:%06X",
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230 | rdr->label, caid, prid);
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231 | if( prid==er->prid )
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232 | {
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233 | rc=1;
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234 | cs_debug("%04X:%06X allowed by reader '%s' filter %04X:%06X",
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235 | er->caid, er->prid, rdr->label, caid, prid);
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236 | }
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237 | }
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238 | }
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239 | }
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240 | if(!rc) {
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241 | cs_debug("no match, %04X:%06X rejected by reader '%s' filters",
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242 | er->caid, er->prid, rdr->label);
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243 | return 0;
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244 | }
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245 | }
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246 |
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247 | return(rc);
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248 | }
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249 |
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250 | int chk_avail_reader(ECM_REQUEST *er, struct s_reader *rdr)
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251 | {
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252 | if( !chk_rfilter(er, rdr) ) {
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253 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_IDENT;
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254 | return 0;
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255 | }
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256 | if( !chk_class(er, &rdr->cltab, "reader", rdr->label) ) {
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257 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_CLASS;
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258 | return 0;
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259 | }
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260 | if( !chk_chid(er, &rdr->fchid, "reader", rdr->label) ) {
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261 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_CHID;
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262 | return 0;
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263 | }
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264 | /*
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265 | if( rdr->typ=='r' )
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266 | {
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267 | if( rdr->qlen>=rdr->maxqlen )
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268 | {
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269 | cs_log("reader '%s' max. queue length(%d) reached, rejected", rdr->label,
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270 | rdr->qlen);
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271 | if( !er->rcEx ) er->rcEx=(E1_READER<<4)|E2_QUEUE;
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272 | return 0;
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273 | }
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274 | else {
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275 | cs_log("reader '%s' qlen=%d", rdr->label, rdr->qlen);
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276 | rdr->qlen++;
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277 | }
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278 | }
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279 | */
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280 | return 1;
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281 | }
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282 |
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283 | int matching_reader(ECM_REQUEST *er, struct s_reader *rdr)
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284 | {
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285 | if (!((rdr->fd) && (rdr->grp&client[cs_idx].grp))) return(0);
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286 | if (!chk_srvid(er, rdr->cs_idx))
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287 | return(0);
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288 | if (!chk_rfilter(er, rdr))
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289 | {
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290 | // if (!er->rcEx) er->rcEx=(E1_READER<<4)|E2_IDENT;
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291 | return(0);
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292 | }
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293 | if (!chk_class(er, &rdr->cltab, "reader", rdr->label))
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294 | {
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295 | // if (!er->rcEx) er->rcEx=(E1_READER<<4)|E2_CLASS;
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296 | return(0);
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297 | }
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298 | if (!chk_chid(er, &rdr->fchid, "reader", rdr->label))
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299 | {
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300 | // if (!er->rcEx) er->rcEx=(E1_READER<<4)|E2_CHID;
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301 | return(0);
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302 | }
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303 | return(1);
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304 | }
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