1 | #include "globals.h"
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2 | #include "oscam-chk.h"
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3 | #include "oscam-ecm.h"
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4 | #include "oscam-client.h"
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5 | #include "oscam-net.h"
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6 | #include "oscam-string.h"
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7 |
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8 | #define CS_NANO_CLASS 0xE2
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9 | #define OK 1
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10 | #define ERROR 0
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11 |
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12 | #ifdef WITH_CARDREADER
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13 | static int32_t ecm_ratelimit_findspace(struct s_reader * reader, ECM_REQUEST *er, int32_t maxloop, int32_t reader_mode)
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14 | {
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15 | int32_t h, foundspace = -1;
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16 | time_t actualtime = time(NULL);
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17 | for (h = 0; h < maxloop; h++) { // always release slots with srvid that are overtime, even if not called from reader module to maximize available slots!
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18 | if ((actualtime - reader->rlecmh[h].last >= reader->ratelimitseconds + reader->srvidholdseconds) && (reader->rlecmh[h].last !=-1)){
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19 | cs_debug_mask(D_TRACE, "ratelimiter srvid %04X released from slot #%d/%d of reader %s (%d>=%d ratelimitsec + %d sec srvidhold!)", reader->rlecmh[h].srvid, h+1, maxloop, reader->label, (int) (actualtime - reader->rlecmh[h].last), reader->ratelimitseconds, reader->srvidholdseconds);
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20 | reader->rlecmh[h].last = -1;
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21 | reader->rlecmh[h].srvid = -1;
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22 | }
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23 | }
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24 |
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25 | for (h = 0; h < maxloop; h++) { // check if srvid is already in a slot
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26 | if (reader->rlecmh[h].srvid == er->srvid) {
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27 | cs_debug_mask(D_TRACE, "ratelimiter found srvid %04X for %d sec in slot #%d/%d of reader %s",er->srvid,
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28 | (int) (actualtime - reader->rlecmh[h].last), h+1, maxloop,reader->label);
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29 |
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30 | // check ecmunique if enabled and ecmunique time is done
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31 | if(reader_mode && reader->ecmunique && (actualtime - reader->rlecmh[h].last < reader->ratelimitseconds)) {
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32 | if (memcmp(reader->rlecmh[h].ecmd5, er->ecmd5, CS_ECMSTORESIZE)){
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33 | char ecmd5[17*3];
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34 | cs_hexdump(0, reader->rlecmh[h].ecmd5, 16, ecmd5, sizeof(ecmd5));
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35 | cs_debug_mask(D_TRACE, "ratelimiter ecm %s in this slot for next %d seconds -> skipping this slot!", ecmd5, (int)
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36 | (reader->ratelimitseconds - (actualtime - reader->rlecmh[h].last)));
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37 | continue;
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38 | }
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39 | }
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40 | if (h > 0){
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41 | for (foundspace = 0; foundspace < h; foundspace++) { // check for free lower slot
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42 | if (reader->rlecmh[foundspace].last ==- 1) {
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43 | reader->rlecmh[h].srvid = -1;
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44 | reader->rlecmh[h].last = -1;
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45 | cs_debug_mask(D_TRACE, "ratelimiter moving srvid %04X to slot #%d/%d of reader %s",er->srvid, foundspace+1, maxloop, reader->label);
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46 | return foundspace; // moving to lower free slot!
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47 | }
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48 | }
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49 | }
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50 | return h; // Found but cant move to lower slot!
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51 | }
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52 | } // srvid not found in slots!
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53 | if (!reader_mode) return -1; // who's calling us? reader or some stat prober? If reader then register otherwise just report!
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54 | for (h = 0; h < maxloop; h++) { // check for free slot
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55 | if (reader->rlecmh[h].last ==- 1) {
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56 | cs_debug_mask(D_TRACE, "ratelimiter added srvid %04X to slot #%d/%d of reader %s", er->srvid, h+1, maxloop, reader->label);
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57 | return h; // free slot found -> assign it!
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58 | }
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59 | else cs_debug_mask(D_TRACE, "ratelimiter srvid %04X for %d seconds present in slot #%d/%d of reader %s", reader->rlecmh[h].srvid, (int) (actualtime - reader->rlecmh[h].last), h+1, maxloop, reader->label); //occupied slots
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60 | }
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61 |
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62 | #ifdef HAVE_DVBAPI
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63 | /* Overide ratelimit priority for dvbapi request */
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64 | foundspace = -1;
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65 | if ((cfg.dvbapi_enabled == 1) && streq(er->client->account->usr, cfg.dvbapi_usr)) {
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66 | if ((reader->lastdvbapirateoverride) < (actualtime - reader->ratelimitseconds)) {
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67 | time_t minecmtime = actualtime;
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68 | for (h = 0; h < maxloop; h++) {
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69 | if(reader->rlecmh[h].last < minecmtime) {
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70 | minecmtime = reader->rlecmh[h].last;
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71 | foundspace = h;
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72 | }
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73 | }
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74 | reader->lastdvbapirateoverride = actualtime;
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75 | cs_debug_mask(D_TRACE, "prioritizing DVBAPI user %s over other watching client", er->client->account->usr);
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76 | cs_debug_mask(D_TRACE, "ratelimiter forcing srvid %04X into slot #%d/%d of reader %s", er->srvid, foundspace+1, maxloop, reader->label);
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77 | return foundspace;
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78 | } else cs_debug_mask(D_TRACE, "DVBAPI User %s is switching too fast for ratelimit and can't be prioritized!",
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79 | er->client->account->usr);
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80 | }
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81 | #endif
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82 |
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83 | return (-1);
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84 | }
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85 |
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86 | int32_t ecm_ratelimit_check(struct s_reader * reader, ECM_REQUEST *er, int32_t reader_mode)
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87 | {
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88 | int32_t foundspace = 0, maxslots = MAXECMRATELIMIT; //init slots to oscam global maximums
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89 |
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90 | if (!reader->ratelimitecm) return OK; /* no rate limit set */
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91 |
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92 | if (reader->cooldown[0]) { // Do we use cooldown?
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93 | if (reader->cooldownstate == 1) { // Cooldown in ratelimit phase
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94 | maxslots = reader->ratelimitecm; // use user defined ratelimitecm
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95 | if (time(NULL) - reader->cooldowntime >= reader->cooldown[1]) { // check if cooldowntime is elapsed
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96 | reader->cooldownstate = 0; // set cooldown setup phase
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97 | reader->cooldowntime = 0; // reset cooldowntime
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98 | maxslots = MAXECMRATELIMIT; //use oscam defined max slots
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99 | cs_log("Reader: %s ratelimiter returning to setup phase cooling down period of %d seconds is done!", reader->label, reader->cooldown[1]);
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100 | }
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101 | }
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102 | }
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103 |
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104 | if (reader_mode){
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105 | char ecmd5[17*3];
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106 | cs_hexdump(0, er->ecmd5, 16, ecmd5, sizeof(ecmd5));
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107 | cs_debug_mask(D_TRACE, "ratelimiter find a slot for srvid %04X ecm %s on reader %s", er->srvid, ecmd5, reader->label);
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108 | }
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109 | else {
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110 | cs_debug_mask(D_TRACE, "ratelimiter find a slot for srvid %04X on reader %s", er->srvid, reader->label);
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111 | }
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112 | foundspace = ecm_ratelimit_findspace(reader, er, maxslots, reader_mode);
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113 | if (foundspace < 0 || foundspace >= reader->ratelimitecm) { /* No space due to ratelimit */
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114 | if (!reader_mode) return OK; // who's calling us? reader or some stat prober? If reader then register otherwise just report!
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115 | if (reader->cooldown[0] && reader->cooldownstate == 0){ // we are in setup phase of cooldown
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116 | cs_log("Reader: %s ratelimiter detected overrun ecmratelimit of %d during setup phase!",reader->label, reader->ratelimitecm);
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117 | reader->cooldownstate = 2; /* Entering cooldowndelay phase */
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118 | reader->cooldowntime = time(NULL); // set cooldowntime to calculate delay
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119 | cs_debug_mask(D_TRACE, "ratelimiter cooldowndelaying %d seconds", reader->cooldown[0]);
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120 | if (foundspace < 0) return ERROR; //not even trowing an error... obvious reason ;)
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121 | reader->rlecmh[foundspace].last=time(NULL); // register new slot >ecmratelimit
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122 | reader->rlecmh[foundspace].srvid=er->srvid;
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123 | return OK;
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124 | }
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125 | if (reader->cooldown[0] && reader->cooldownstate == 2) { // check if cooldowndelay is elapsed
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126 | if (time(NULL) - reader->cooldowntime <= reader->cooldown[0]) { // we are in cooldowndelay!
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127 | if (foundspace < 0) return ERROR; //not even trowing an error... obvious reason ;)
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128 | if (reader_mode){ // who's calling us? reader or some stat prober? If reader then register otherwise just report!
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129 | reader->rlecmh[foundspace].last=time(NULL); // register new slot >ecmratelimit
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130 | reader->rlecmh[foundspace].srvid=er->srvid;
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131 | if(reader_mode) memcpy(reader->rlecmh[foundspace].ecmd5, er->ecmd5, CS_ECMSTORESIZE); // register ecmhash
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132 | }
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133 | return OK;
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134 | }
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135 | else {
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136 | if (!reader_mode) return ERROR; //who's calling us? reader or some stat prober? If reader then register otherwise just report!
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137 | reader->cooldownstate = 1; // Entering ratelimit for cooldown ratelimitseconds
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138 | reader->cooldowntime = time(NULL); // set time to enforce ecmratelimit for defined cooldowntime
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139 | cs_log("Reader: %s ratelimiter starting cooling down period of %d seconds!", reader->label, reader->cooldown[1]);
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140 |
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141 | for (foundspace = reader->ratelimitecm; foundspace <= maxslots; foundspace++) { // release all slots above ratelimit
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142 | reader->rlecmh[foundspace].last = -1;
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143 | reader->rlecmh[foundspace].srvid = -1;
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144 | }
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145 | }
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146 | }
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147 | // Ratelimit and cooldown in ratelimitseconds
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148 | if (!reader_mode) return ERROR; //who's calling us? reader or some stat prober? If reader then register otherwise just report!
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149 | cs_debug_mask(D_TRACE, "ratelimiter no free slot for srvid %04X on reader %s -> dropping!", er->srvid, reader->label);
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150 | write_ecm_answer(reader, er, E_NOTFOUND, E2_RATELIMIT, NULL, "Ratelimiter: no slots free!");
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151 | return ERROR;
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152 | }
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153 | if (reader_mode) { //who's calling us? reader or some stat prober? If reader then register otherwise just report!
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154 | reader->rlecmh[foundspace].last=time(NULL); //we are within ecmratelimits
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155 | reader->rlecmh[foundspace].srvid=er->srvid;
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156 | memcpy(reader->rlecmh[foundspace].ecmd5, er->ecmd5, CS_ECMSTORESIZE);// register ecmhash
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157 | }
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158 | if (reader->cooldown[0] && reader->cooldownstate == 2) { // check if cooldowndelay is elapsed
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159 | if (time(NULL) - reader->cooldowntime > reader->cooldown[0]) {
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160 | reader->cooldownstate = 0; // return to cooldown setup phase
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161 | reader->cooldowntime = 0; // reset cooldowntime
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162 | maxslots = MAXECMRATELIMIT; //use oscam defined max slots
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163 | cs_log("Reader: %s ratelimiter returned to setup phase after %d seconds cooldowndelay!",reader->label, reader->cooldown[0]);
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164 | }
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165 | }
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166 | return OK;
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167 | }
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168 | #endif
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169 |
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170 | static int32_t find_nano(uchar *ecm, int32_t l, uchar nano, int32_t s)
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171 | {
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172 | uchar *snano;
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173 |
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174 | if( s >= l ) return 0;
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175 | if( !s ) s=(ecm[4]==0xD2) ? 12 : 9; // tpsflag -> offset+3
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176 | snano = ecm + s;
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177 |
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178 | while( (*snano!=nano) && (s<l) )
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179 | {
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180 | if( *snano == 0xEA ) return 0;
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181 | snano++;
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182 | s++;
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183 | }
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184 |
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185 | return (s<l)?++s:0;
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186 | }
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187 |
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188 | static int32_t chk_class(ECM_REQUEST *er, CLASSTAB *clstab, const char *type, const char *name)
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189 | {
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190 | int32_t i, j, an, cl_n, l;
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191 | uchar ecm_class;
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192 |
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193 | if( er->caid!=0x0500 ) return 1;
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194 | if( !clstab->bn && !clstab->an ) return 1;
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195 |
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196 | j=an=cl_n=l=0;
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197 | while( (j=find_nano(er->ecm, er->ecmlen, CS_NANO_CLASS, j)) > 0 )
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198 | {
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199 | l = er->ecm[j];
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200 | if(l+j>er->ecmlen) continue; // skip, this is not a valid class identifier!
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201 | ecm_class = er->ecm[j+l];
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202 | cs_debug_mask(D_CLIENT, "ecm class=%02X", ecm_class);
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203 | for( i=0; i<clstab->bn; i++ ) // search in blocked
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204 | if( ecm_class==clstab->bclass[i] )
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205 | {
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206 | cs_debug_mask(D_CLIENT, "class %02X rejected by %s '%s' !%02X filter",
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207 | ecm_class, type, name, ecm_class);
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208 | return 0;
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209 | }
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210 |
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211 | cl_n++;
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212 | for( i=0; i<clstab->an; i++ ) // search in allowed
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213 | if( ecm_class==clstab->aclass[i] )
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214 | {
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215 | an++;
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216 | break;
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217 | }
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218 | j+=l;
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219 | }
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220 |
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221 | if( cl_n && clstab->an )
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222 | {
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223 | if( an )
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224 | cs_debug_mask(D_CLIENT, "ECM classes allowed by %s '%s' filter", type, name);
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225 | else {
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226 | cs_debug_mask(D_CLIENT, "ECM classes don't match %s '%s' filter, rejecting", type, name);
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227 | return 0;
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228 | }
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229 | }
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230 |
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231 | return 1;
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232 | }
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233 |
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234 | int32_t chk_srvid_match(ECM_REQUEST *er, SIDTAB *sidtab)
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235 | {
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236 | int32_t i, rc=0;
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237 |
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238 | if (!sidtab->num_caid)
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239 | rc|=1;
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240 | else
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241 | for (i=0; (i<sidtab->num_caid) && (!(rc&1)); i++)
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242 | if (er->caid==sidtab->caid[i]) rc|=1;
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243 |
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244 | if (!er->prid || !sidtab->num_provid)
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245 | rc|=2;
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246 | else
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247 | for (i=0; (i<sidtab->num_provid) && (!(rc&2)); i++)
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248 | if (er->prid==sidtab->provid[i]) rc|=2;
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249 |
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250 | if (!sidtab->num_srvid)
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251 | rc|=4;
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252 | else
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253 | for (i=0; (i<sidtab->num_srvid) && (!(rc&4)); i++)
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254 | if (er->srvid==sidtab->srvid[i]) rc|=4;
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255 |
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256 | return(rc==7);
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257 | }
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258 |
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259 | int32_t chk_srvid(struct s_client *cl, ECM_REQUEST *er)
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260 | {
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261 | int32_t nr, rc=0;
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262 | SIDTAB *sidtab;
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263 |
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264 | if (!cl->sidtabs.ok)
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265 | {
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266 | if (!cl->sidtabs.no) return(1);
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267 | rc=1;
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268 | }
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269 | for (nr=0, sidtab=cfg.sidtab; sidtab; sidtab=sidtab->next, nr++)
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270 | if (sidtab->num_caid | sidtab->num_provid | sidtab->num_srvid)
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271 | {
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272 | if ((cl->sidtabs.no&((SIDTABBITS)1<<nr)) &&
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273 | (chk_srvid_match(er, sidtab)))
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274 | return(0);
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275 | if ((cl->sidtabs.ok&((SIDTABBITS)1<<nr)) &&
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276 | (chk_srvid_match(er, sidtab)))
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277 | rc=1;
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278 | }
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279 | return(rc);
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280 | }
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281 |
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282 | int32_t has_srvid(struct s_client *cl, ECM_REQUEST *er) {
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283 | if (!cl->sidtabs.ok)
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284 | return 0;
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285 |
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286 | int32_t nr;
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287 | SIDTAB *sidtab;
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288 |
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289 | for (nr=0, sidtab=cfg.sidtab; sidtab; sidtab=sidtab->next, nr++)
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290 | if (sidtab->num_srvid)
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291 | {
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292 | if ((cl->sidtabs.ok&((SIDTABBITS)1<<nr)) &&
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293 | (chk_srvid_match(er, sidtab)))
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294 | return 1;
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295 | }
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296 | return 0;
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297 | }
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298 |
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299 |
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300 | int32_t chk_srvid_match_by_caid_prov(uint16_t caid, uint32_t provid, SIDTAB *sidtab)
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301 | {
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302 | int32_t i, rc=0;
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303 |
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304 | if (!sidtab->num_caid)
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305 | rc|=1;
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306 | else
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307 | for (i=0; (i<sidtab->num_caid) && (!(rc&1)); i++)
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308 | if (caid==sidtab->caid[i]) rc|=1;
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309 |
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310 | if (!sidtab->num_provid)
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311 | rc|=2;
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312 | else
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313 | for (i=0; (i<sidtab->num_provid) && (!(rc&2)); i++)
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314 | if (provid==sidtab->provid[i]) rc|=2;
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315 |
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316 | return(rc==3);
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317 | }
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318 |
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319 | int32_t chk_srvid_by_caid_prov(struct s_client *cl, uint16_t caid, uint32_t provid) {
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320 | int32_t nr, rc=0;
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321 | SIDTAB *sidtab;
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322 |
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323 | if (!cl->sidtabs.ok)
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324 | {
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325 | if (!cl->sidtabs.no) return(1);
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326 | rc=1;
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327 | }
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328 | for (nr=0, sidtab=cfg.sidtab; sidtab; sidtab=sidtab->next, nr++)
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329 | if (sidtab->num_caid | sidtab->num_provid)
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330 | {
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331 | if ((cl->sidtabs.no&((SIDTABBITS)1<<nr)) && !sidtab->num_srvid &&
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332 | (chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
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333 | return(0);
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334 | if ((cl->sidtabs.ok&((SIDTABBITS)1<<nr)) &&
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335 | (chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
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336 | rc=1;
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337 | }
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338 | return(rc);
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339 | }
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340 |
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341 | int32_t chk_srvid_by_caid_prov_rdr(struct s_reader *rdr, uint16_t caid, uint32_t provid) {
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342 | int32_t nr, rc=0;
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343 | SIDTAB *sidtab;
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344 |
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345 | if (!rdr->sidtabs.ok)
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346 | {
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347 | if (!rdr->sidtabs.no) return(1);
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348 | rc=1;
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349 | }
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350 | for (nr=0, sidtab=cfg.sidtab; sidtab; sidtab=sidtab->next, nr++)
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351 | if (sidtab->num_caid | sidtab->num_provid)
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352 | {
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353 | if ((rdr->sidtabs.no&((SIDTABBITS)1<<nr)) && !sidtab->num_srvid &&
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354 | (chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
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355 | return(0);
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356 | if ((rdr->sidtabs.ok&((SIDTABBITS)1<<nr)) &&
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357 | (chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
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358 | rc=1;
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359 | }
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360 | return(rc);
|
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361 | }
|
---|
362 |
|
---|
363 |
|
---|
364 | // server filter for newcamd
|
---|
365 | int32_t chk_sfilter(ECM_REQUEST *er, PTAB *ptab)
|
---|
366 | {
|
---|
367 | #ifdef MODULE_NEWCAMD
|
---|
368 | int32_t i, j, pi, rc=1;
|
---|
369 | uint16_t caid, scaid;
|
---|
370 | uint32_t prid, sprid;
|
---|
371 |
|
---|
372 | if (!ptab) return(1);
|
---|
373 | struct s_client *cur_cl = cur_client();
|
---|
374 |
|
---|
375 | caid = er->caid;
|
---|
376 | prid = er->prid;
|
---|
377 | pi = cur_cl->port_idx;
|
---|
378 |
|
---|
379 | if (cfg.ncd_mgclient && ptab == &cfg.ncd_ptab)
|
---|
380 | return 1;
|
---|
381 |
|
---|
382 | if (ptab->nports && ptab->ports[pi].ncd && ptab->ports[pi].ncd->ncd_ftab.nfilts)
|
---|
383 | {
|
---|
384 | for( rc=j=0; (!rc) && (j<ptab->ports[pi].ncd->ncd_ftab.nfilts); j++ )
|
---|
385 | {
|
---|
386 | scaid = ptab->ports[pi].ncd->ncd_ftab.filts[j].caid;
|
---|
387 | if (caid==0||(caid!=0 && caid==scaid))
|
---|
388 | {
|
---|
389 | for( i=0; (!rc) && i<ptab->ports[pi].ncd->ncd_ftab.filts[j].nprids; i++ )
|
---|
390 | {
|
---|
391 | sprid=ptab->ports[pi].ncd->ncd_ftab.filts[j].prids[i];
|
---|
392 | cs_debug_mask(D_CLIENT, "trying server filter %04X:%06X", scaid, sprid);
|
---|
393 | if (prid==sprid)
|
---|
394 | {
|
---|
395 | rc=1;
|
---|
396 | cs_debug_mask(D_CLIENT, "%04X:%06X allowed by server filter %04X:%06X",
|
---|
397 | caid, prid, scaid, sprid);
|
---|
398 | }
|
---|
399 | }
|
---|
400 | }
|
---|
401 | }
|
---|
402 | if(!rc)
|
---|
403 | {
|
---|
404 | cs_debug_mask(D_CLIENT, "no match, %04X:%06X rejected by server filters", caid, prid);
|
---|
405 | snprintf( er->msglog, MSGLOGSIZE, "no server match %04X:%06X",
|
---|
406 | caid, (uint32_t) prid );
|
---|
407 |
|
---|
408 | if (!er->rcEx) er->rcEx=(E1_LSERVER<<4)|E2_IDENT;
|
---|
409 | return(rc);
|
---|
410 | }
|
---|
411 | }
|
---|
412 | return (rc);
|
---|
413 | #else
|
---|
414 | (void)er;
|
---|
415 | (void)ptab;
|
---|
416 | return 1;
|
---|
417 | #endif
|
---|
418 | }
|
---|
419 |
|
---|
420 | static int32_t chk_chid(ECM_REQUEST *er, FTAB *fchid, char *type, char *name)
|
---|
421 | {
|
---|
422 | int32_t rc=1, i, j, found_caid=0;
|
---|
423 | if( !fchid->nfilts ) return 1;
|
---|
424 |
|
---|
425 | for( i=rc=0; (!rc) && i<fchid->nfilts; i++ )
|
---|
426 | if( er->caid == fchid->filts[i].caid ) {
|
---|
427 | found_caid=1;
|
---|
428 | for( j=0; (!rc) && j<fchid->filts[i].nprids; j++ )
|
---|
429 | {
|
---|
430 | cs_debug_mask(D_CLIENT, "trying %s '%s' CHID filter %04X:%04X",
|
---|
431 | type, name, fchid->filts[i].caid, fchid->filts[i].prids[j]);
|
---|
432 | if( er->chid == fchid->filts[i].prids[j] )
|
---|
433 | {
|
---|
434 | cs_debug_mask(D_CLIENT, "%04X:%04X allowed by %s '%s' CHID filter %04X:%04X",
|
---|
435 | er->caid, er->chid, type, name, fchid->filts[i].caid,
|
---|
436 | fchid->filts[i].prids[j]);
|
---|
437 | rc=1;
|
---|
438 | }
|
---|
439 | }
|
---|
440 | }
|
---|
441 |
|
---|
442 | if( !rc )
|
---|
443 | {
|
---|
444 | if (found_caid)
|
---|
445 | cs_debug_mask(D_CLIENT, "no match, %04X:%04X rejected by %s '%s' CHID filter(s)",
|
---|
446 | er->caid, er->chid, type, name);
|
---|
447 | else {
|
---|
448 | rc=1;
|
---|
449 | cs_debug_mask(D_CLIENT, "%04X:%04X allowed by %s '%s' CHID filter, CAID not spezified",
|
---|
450 | er->caid, er->chid, type, name);
|
---|
451 | }
|
---|
452 | }
|
---|
453 | return (rc);
|
---|
454 | }
|
---|
455 |
|
---|
456 | int32_t chk_ufilters(ECM_REQUEST *er)
|
---|
457 | {
|
---|
458 | int32_t i, j, rc;
|
---|
459 | uint16_t ucaid;
|
---|
460 | uint32_t uprid;
|
---|
461 | struct s_client *cur_cl = cur_client();
|
---|
462 |
|
---|
463 | rc=1;
|
---|
464 | if( cur_cl->ftab.nfilts )
|
---|
465 | {
|
---|
466 | FTAB *f = &cur_cl->ftab;
|
---|
467 | for( i=rc=0; (!rc) && (i<f->nfilts); i++ )
|
---|
468 | {
|
---|
469 | ucaid = f->filts[i].caid;
|
---|
470 | if( er->caid==0 || ucaid==0 || (er->caid!=0 && er->caid==ucaid) )
|
---|
471 | {
|
---|
472 | for( j=rc=0; (!rc) && (j<f->filts[i].nprids); j++ )
|
---|
473 | {
|
---|
474 | uprid = f->filts[i].prids[j];
|
---|
475 | cs_debug_mask(D_CLIENT, "trying user '%s' filter %04X:%06X",
|
---|
476 | cur_cl->account->usr, ucaid, uprid);
|
---|
477 | if( er->prid == uprid )
|
---|
478 | {
|
---|
479 | rc=1;
|
---|
480 | cs_debug_mask(D_CLIENT, "%04X:%06X allowed by user '%s' filter %04X:%06X",
|
---|
481 | er->caid, er->prid, cur_cl->account->usr, ucaid, uprid);
|
---|
482 | }
|
---|
483 | }
|
---|
484 | }
|
---|
485 | }
|
---|
486 | if( !rc ) {
|
---|
487 | cs_debug_mask(D_CLIENT, "no match, %04X:%06X rejected by user '%s' filters",
|
---|
488 | er->caid, er->prid, cur_cl->account->usr);
|
---|
489 | snprintf( er->msglog, MSGLOGSIZE, "no card support %04X:%06X",
|
---|
490 | er->caid, (uint32_t) er->prid );
|
---|
491 |
|
---|
492 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_IDENT;
|
---|
493 | return (rc);
|
---|
494 | }
|
---|
495 | }
|
---|
496 |
|
---|
497 | if( !(rc=chk_class(er, &cur_cl->cltab, "user", cur_cl->account->usr)) ) {
|
---|
498 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_CLASS;
|
---|
499 | }
|
---|
500 | else if( !(rc=chk_chid(er, &cur_cl->fchid, "user", cur_cl->account->usr)) )
|
---|
501 | if( !er->rcEx ) er->rcEx=(E1_USER<<4)|E2_CHID;
|
---|
502 |
|
---|
503 | if( rc ) er->rcEx=0;
|
---|
504 |
|
---|
505 | return (rc);
|
---|
506 | }
|
---|
507 |
|
---|
508 | int32_t chk_rsfilter(struct s_reader * reader, ECM_REQUEST *er)
|
---|
509 | {
|
---|
510 | int32_t i, rc=1;
|
---|
511 | uint16_t caid;
|
---|
512 | uint32_t prid;
|
---|
513 |
|
---|
514 | if( reader->ncd_disable_server_filt )
|
---|
515 | {
|
---|
516 | cs_debug_mask(D_CLIENT, "%04X:%06X allowed - server filters disabled",
|
---|
517 | er->caid, er->prid);
|
---|
518 | return 1;
|
---|
519 | }
|
---|
520 |
|
---|
521 | rc=prid=0;
|
---|
522 | caid = reader->caid;
|
---|
523 | if( caid==er->caid )
|
---|
524 | {
|
---|
525 | for( i=0; (!rc) && (i<reader->nprov); i++ )
|
---|
526 | {
|
---|
527 | prid = (uint32_t)((reader->prid[i][1]<<16) |
|
---|
528 | (reader->prid[i][2]<<8) |
|
---|
529 | (reader->prid[i][3]));
|
---|
530 | cs_debug_mask(D_CLIENT, "trying server '%s' filter %04X:%06X",
|
---|
531 | reader->device, caid, prid);
|
---|
532 | if( prid==er->prid )
|
---|
533 | {
|
---|
534 | rc=1;
|
---|
535 | cs_debug_mask(D_CLIENT, "%04X:%06X allowed by server '%s' filter %04X:%06X",
|
---|
536 | er->caid, er->prid, reader->device, caid, prid);
|
---|
537 | }
|
---|
538 | }
|
---|
539 | }
|
---|
540 | if(!rc) {
|
---|
541 | cs_debug_mask(D_CLIENT, "no match, %04X:%06X rejected by server '%s' filters",
|
---|
542 | er->caid, er->prid, reader->device);
|
---|
543 | if( !er->rcEx ) er->rcEx=(E1_SERVER<<4)|E2_IDENT;
|
---|
544 | return 0;
|
---|
545 | }
|
---|
546 |
|
---|
547 | return(rc);
|
---|
548 | }
|
---|
549 |
|
---|
550 | int32_t chk_rfilter2(uint16_t rcaid, uint32_t rprid, struct s_reader *rdr)
|
---|
551 | {
|
---|
552 | int32_t i, j, rc=1;
|
---|
553 | uint16_t caid=0;
|
---|
554 | uint32_t prid=0;
|
---|
555 |
|
---|
556 | if( rdr->ftab.nfilts )
|
---|
557 | {
|
---|
558 | for( rc=i=0; (!rc) && (i<rdr->ftab.nfilts); i++ )
|
---|
559 | {
|
---|
560 | caid = rdr->ftab.filts[i].caid;
|
---|
561 | if( (caid!=0 && caid==rcaid) || caid==0 )
|
---|
562 | {
|
---|
563 | for( j=0; (!rc) && (j<rdr->ftab.filts[i].nprids); j++)
|
---|
564 | {
|
---|
565 | prid = rdr->ftab.filts[i].prids[j];
|
---|
566 | cs_debug_mask(D_CLIENT, "trying reader '%s' filter %04X:%06X",
|
---|
567 | rdr->label, caid, prid);
|
---|
568 | if( prid==rprid )
|
---|
569 | {
|
---|
570 | rc=1;
|
---|
571 | cs_debug_mask(D_CLIENT, "%04X:%06X allowed by reader '%s' filter %04X:%06X",
|
---|
572 | rcaid, rprid, rdr->label, caid, prid);
|
---|
573 | }
|
---|
574 | }
|
---|
575 | }
|
---|
576 | }
|
---|
577 | if(!rc) {
|
---|
578 | cs_debug_mask(D_CLIENT, "no match, %04X:%06X rejected by reader '%s' filters",
|
---|
579 | rcaid, rprid, rdr->label);
|
---|
580 | return 0;
|
---|
581 | }
|
---|
582 | }
|
---|
583 |
|
---|
584 | return(rc);
|
---|
585 | }
|
---|
586 |
|
---|
587 |
|
---|
588 | static int32_t chk_rfilter(ECM_REQUEST *er, struct s_reader *rdr)
|
---|
589 | {
|
---|
590 | return chk_rfilter2(er->caid, er->prid, rdr);
|
---|
591 | }
|
---|
592 |
|
---|
593 | int32_t chk_ctab(uint16_t caid, CAIDTAB *ctab) {
|
---|
594 | if (!caid || !ctab->caid[0])
|
---|
595 | return 1;
|
---|
596 |
|
---|
597 | int32_t i;
|
---|
598 | for (i=0;i<CS_MAXCAIDTAB;i++)
|
---|
599 | {
|
---|
600 | if (!ctab->caid[i]) {
|
---|
601 | return 0;
|
---|
602 | }
|
---|
603 | if ((caid & ctab->mask[i]) == ctab->caid[i])
|
---|
604 | return 1;
|
---|
605 | }
|
---|
606 | return 0;
|
---|
607 | }
|
---|
608 |
|
---|
609 | int32_t chk_ctab_ex(uint16_t caid, CAIDTAB *ctab) {
|
---|
610 | if (!caid || !ctab->caid[0])
|
---|
611 | return 0;
|
---|
612 |
|
---|
613 | int32_t i;
|
---|
614 | for (i=0;i<CS_MAXCAIDTAB;i++)
|
---|
615 | {
|
---|
616 | if (!ctab->caid[i]) {
|
---|
617 | return 0;
|
---|
618 | }
|
---|
619 | if ((caid & ctab->mask[i]) == ctab->caid[i])
|
---|
620 | return 1;
|
---|
621 | }
|
---|
622 | return 0;
|
---|
623 | }
|
---|
624 |
|
---|
625 | int32_t matching_reader(ECM_REQUEST *er, struct s_reader *rdr, int32_t slot) {
|
---|
626 | (void)slot; // Prevent warning about unused param slot, when WITH_CARDREADER is disabled
|
---|
627 | //simple checks first:
|
---|
628 | if (!er || !rdr)
|
---|
629 | return(0);
|
---|
630 |
|
---|
631 | //reader active?
|
---|
632 | struct s_client *cl = rdr->client;
|
---|
633 | if (!cl || !rdr->enable)
|
---|
634 | return(0);
|
---|
635 |
|
---|
636 | // if physical reader a card needs to be inserted
|
---|
637 | if (!is_network_reader(rdr) && rdr->card_status != CARD_INSERTED)
|
---|
638 | return(0);
|
---|
639 |
|
---|
640 | //Checking connected & group valid:
|
---|
641 | struct s_client *cur_cl = er->client; //cur_client();
|
---|
642 |
|
---|
643 | #ifdef CS_CACHEEX
|
---|
644 | //To avoid cascading, a incoming cache request should not invoke a outgoing cache request:
|
---|
645 | if (rdr->cacheex.mode == 1 && cur_cl->auth && cur_cl->account->cacheex.mode == 1)
|
---|
646 | return (0);
|
---|
647 |
|
---|
648 | //Cacheex=3 defines a Cacheex-only reader. never match them.
|
---|
649 | if (rdr->cacheex.mode == 3)
|
---|
650 | return (0);
|
---|
651 | #endif
|
---|
652 |
|
---|
653 | if (!(rdr->grp&cur_cl->grp))
|
---|
654 | return(0);
|
---|
655 |
|
---|
656 | //Checking caids:
|
---|
657 | if ((!er->ocaid || !chk_ctab(er->ocaid, &rdr->ctab)) && !chk_ctab(er->caid, &rdr->ctab)) {
|
---|
658 | cs_debug_mask(D_TRACE, "caid %04X not found in caidlist reader %s", er->caid, rdr->label);
|
---|
659 | return 0;
|
---|
660 | }
|
---|
661 |
|
---|
662 | if (!is_network_reader(rdr) && ((rdr->caid >> 8) != ((er->caid >> 8) & 0xFF) && (rdr->caid >> 8) != ((er->ocaid >> 8) & 0xFF)))
|
---|
663 | {
|
---|
664 | int i, caid_found = 0;
|
---|
665 | for (i = 0; i < 2; i++) {
|
---|
666 | if (rdr->csystem.caids[i] == er->caid || rdr->csystem.caids[i] == er->ocaid) {
|
---|
667 | caid_found = 1;
|
---|
668 | break;
|
---|
669 | }
|
---|
670 | }
|
---|
671 | if (!caid_found)
|
---|
672 | return 0;
|
---|
673 | }
|
---|
674 |
|
---|
675 | //Supports long ecms?
|
---|
676 | if (er->ecmlen > 255 && is_network_reader(rdr) && !rdr->ph.large_ecm_support) {
|
---|
677 | cs_debug_mask(D_TRACE, "no large ecm support (l=%d) for reader %s", er->ecmlen, rdr->label);
|
---|
678 | return 0;
|
---|
679 | }
|
---|
680 |
|
---|
681 |
|
---|
682 | //Checking services:
|
---|
683 | if (!chk_srvid(rdr->client, er)) {
|
---|
684 | cs_debug_mask(D_TRACE, "service %04X not matching reader %s", er->srvid, rdr->label);
|
---|
685 | return(0);
|
---|
686 | }
|
---|
687 |
|
---|
688 | //Checking ident:
|
---|
689 | if (er->prid && !chk_rfilter(er, rdr)) {
|
---|
690 | cs_debug_mask(D_TRACE, "r-filter reader %s", rdr->label);
|
---|
691 | return(0);
|
---|
692 | }
|
---|
693 |
|
---|
694 | //Check ECM nanos:
|
---|
695 | if (!chk_class(er, &rdr->cltab, "reader", rdr->label)) {
|
---|
696 | cs_debug_mask(D_TRACE, "class filter reader %s", rdr->label);
|
---|
697 | return(0);
|
---|
698 | }
|
---|
699 |
|
---|
700 |
|
---|
701 | // CDS NL: check for right seca type
|
---|
702 | if (!is_network_reader(rdr) && er->caid == 0x100 && er->prid == 0x00006a &&
|
---|
703 | !(er->ecm[8] == 0x00 && er->ecm[9] == 0x00)) { // no empty ecm
|
---|
704 | if (er->ecm[8] == 0x00 && rdr->secatype == 2) {
|
---|
705 | cs_debug_mask(D_TRACE,"Error: this is a nagra/mediaguard3 ECM and readertype is seca2!");
|
---|
706 | return 0; // we dont send a nagra/mediaguard3 ecm to a seca2 reader!
|
---|
707 | }
|
---|
708 | if ((er->ecm[8] == 0x10) && (er->ecm[9] == 0x01) && rdr->secatype == 3){
|
---|
709 | cs_debug_mask(D_TRACE,"Error: this is a seca2 ECM and readertype is nagra/mediaguard3!");
|
---|
710 | return 0; // we dont send a seca2 ecm to a nagra/mediaguard3 reader!
|
---|
711 | }
|
---|
712 | }
|
---|
713 |
|
---|
714 | //Checking chid:
|
---|
715 | if (!chk_chid(er, &rdr->fchid, "reader", rdr->label)) {
|
---|
716 | cs_debug_mask(D_TRACE, "chid filter reader %s", rdr->label);
|
---|
717 | return(0);
|
---|
718 | }
|
---|
719 |
|
---|
720 | //Schlocke reader-defined function, reader-self-check
|
---|
721 | if (rdr->ph.c_available && !rdr->ph.c_available(rdr, AVAIL_CHECK_CONNECTED, er)) {
|
---|
722 | cs_debug_mask(D_TRACE, "reader unavailable %s", rdr->label);
|
---|
723 | return 0;
|
---|
724 | }
|
---|
725 |
|
---|
726 | //Checking entitlements:
|
---|
727 | if (ll_count(rdr->ll_entitlements) > 0) {
|
---|
728 | LL_ITER itr = ll_iter_create(rdr->ll_entitlements);
|
---|
729 | S_ENTITLEMENT *item;
|
---|
730 | int8_t found = 0;
|
---|
731 | while ((item=ll_iter_next(&itr))) {
|
---|
732 | //if (item->caid == er->caid && (!er->prid || !item->provid || item->provid == er->prid)) { //provid check causing problems?
|
---|
733 | if (item->caid == er->caid || item->caid == er->ocaid) { //... so check at least caid only
|
---|
734 | found =1;
|
---|
735 | break;
|
---|
736 | }
|
---|
737 | }
|
---|
738 | if (!found){
|
---|
739 | cs_debug_mask(D_TRACE, "entitlements check failed on reader %s", rdr->label);
|
---|
740 | return 0;
|
---|
741 | }
|
---|
742 | }
|
---|
743 |
|
---|
744 | //Checking ecmlength:
|
---|
745 | if (rdr->ecmWhitelist && er->ecmlen) {
|
---|
746 | struct s_ecmWhitelist *tmp;
|
---|
747 | struct s_ecmWhitelistIdent *tmpIdent;
|
---|
748 | struct s_ecmWhitelistLen *tmpLen;
|
---|
749 | int8_t ok = 0, foundident = 0;
|
---|
750 | for(tmp = rdr->ecmWhitelist; tmp; tmp = tmp->next){
|
---|
751 | if(tmp->caid == 0 || tmp->caid == er->caid){
|
---|
752 | for(tmpIdent = tmp->idents; tmpIdent; tmpIdent = tmpIdent->next){
|
---|
753 | if(tmpIdent->ident == 0 || tmpIdent->ident == er->prid){
|
---|
754 | foundident = 1;
|
---|
755 | for(tmpLen = tmpIdent->lengths; tmpLen; tmpLen = tmpLen->next){
|
---|
756 | if (tmpLen->len == er->ecmlen) {
|
---|
757 | ok = 1;
|
---|
758 | break;
|
---|
759 | }
|
---|
760 | }
|
---|
761 | }
|
---|
762 | }
|
---|
763 | }
|
---|
764 | }
|
---|
765 | if(foundident == 1 && ok == 0){
|
---|
766 | cs_debug_mask(D_TRACE, "ECM is not in ecmwhitelist of reader %s.",rdr->label);
|
---|
767 | rdr->ecmsfilteredlen += 1;
|
---|
768 | return(0);
|
---|
769 | }
|
---|
770 | }
|
---|
771 |
|
---|
772 | // ECM Header Check
|
---|
773 | if (rdr->ecmHeaderwhitelist && er->ecmlen) {
|
---|
774 | int8_t byteok = 0;
|
---|
775 | int8_t entryok = 0;
|
---|
776 | int8_t foundcaid = 0;
|
---|
777 | int8_t foundprovid = 0;
|
---|
778 | int16_t len = 0;
|
---|
779 | int32_t i = 0;
|
---|
780 | int8_t skip = 0;
|
---|
781 | struct s_ecmHeaderwhitelist *tmp;
|
---|
782 | for(tmp = rdr->ecmHeaderwhitelist; tmp; tmp = tmp->next){
|
---|
783 | skip = 0;
|
---|
784 | byteok = 0;
|
---|
785 | entryok = 0;
|
---|
786 | len = 0;
|
---|
787 | if (tmp->caid == 0 || tmp->caid == er->caid){
|
---|
788 | foundcaid = 1; //-> caid was in list
|
---|
789 | //rdr_debug_mask(rdr, D_READER, "Headerwhitelist: found matching CAID: %04X in list", tmp->caid);
|
---|
790 | if (tmp->provid == 0 || tmp->provid == er->prid) {
|
---|
791 | foundprovid = 1; //-> provid was in list
|
---|
792 | //rdr_debug_mask(rdr, D_READER, "Headerwhitelist: found matching Provid: %06X in list", tmp->provid);
|
---|
793 | len = tmp->len;
|
---|
794 | for (i=0; i < len/2; i++){
|
---|
795 | if (tmp->header[i] == er->ecm[i]){
|
---|
796 | byteok = 1;
|
---|
797 | //rdr_debug_mask(rdr, D_READER, "ECM Byte: %i of ECMHeaderwhitelist is correct. (%02X = %02X Headerlen: %i)", i, er->ecm[i], tmp->header[i], len/2);
|
---|
798 | }
|
---|
799 | else {
|
---|
800 | byteok = 0;
|
---|
801 | //rdr_debug_mask(rdr, D_READER, "ECM Byte: %i of ECMHeaderwhitelist is not valid. (%02X != %02X Headerlen: %i)", i, er->ecm[i], tmp->header[i], len/2);
|
---|
802 | entryok = 0;
|
---|
803 | break;
|
---|
804 | }
|
---|
805 | if (i == len/2-1 && byteok == 1){
|
---|
806 | entryok = 1;
|
---|
807 | }
|
---|
808 |
|
---|
809 | }
|
---|
810 | } else {
|
---|
811 | //rdr_debug_mask(rdr, D_READER, "ECMHeaderwhitelist: Provid: %06X not found in List-Entry -> skipping check", er->prid);
|
---|
812 | skip = 1;
|
---|
813 | continue;
|
---|
814 | }
|
---|
815 | } else {
|
---|
816 | //rdr_debug_mask(rdr, D_READER, "ECMHeaderwhitelist: CAID: %04X not found in List-Entry -> skipping check", er->caid);
|
---|
817 | skip = 1;
|
---|
818 | continue;
|
---|
819 | }
|
---|
820 | if (entryok == 1){
|
---|
821 | break;
|
---|
822 | }
|
---|
823 |
|
---|
824 | }
|
---|
825 | if (foundcaid == 1 && foundprovid == 1 && byteok == 1 && entryok == 1){
|
---|
826 | //cs_log("ECM for %04X:%06X:%04X is valid for ECMHeaderwhitelist of reader %s.", er->caid, er->prid, er->srvid, rdr->label);
|
---|
827 | } else {
|
---|
828 | if (skip == 0 || (foundcaid == 1 && foundprovid == 1 && entryok == 0 && skip == 1)) {
|
---|
829 | cs_ddump_mask(D_TRACE, er->ecm, er->ecmlen,
|
---|
830 | "following ECM %04X:%06X:%04X was filtered by ECMHeaderwhitelist of Reader %s from User %s because of not matching Header:",
|
---|
831 | er->caid, er->prid, er->srvid, rdr->label, username(er->client));
|
---|
832 | rdr->ecmsfilteredhead += 1;
|
---|
833 | return(0);
|
---|
834 | }
|
---|
835 | }
|
---|
836 | }
|
---|
837 |
|
---|
838 | //Simple ring connection check:
|
---|
839 |
|
---|
840 | //Check ip source+dest:
|
---|
841 | if (cfg.block_same_ip && IP_EQUAL(cur_cl->ip, rdr->client->ip) &&
|
---|
842 | get_module(cur_cl)->listenertype != LIS_DVBAPI &&
|
---|
843 | is_network_reader(rdr))
|
---|
844 | {
|
---|
845 | cs_debug_mask(D_TRACE, "ECMs origin %s has the same ip as reader %s, blocked!", username(cur_cl), rdr->label);
|
---|
846 | return 0;
|
---|
847 | }
|
---|
848 |
|
---|
849 | if (cfg.block_same_name && strcmp(username(cur_cl), rdr->label) == 0) {
|
---|
850 | cs_debug_mask(D_TRACE, "ECMs origin %s has the same name as reader %s, blocked!", username(cur_cl), rdr->label);
|
---|
851 | return 0;
|
---|
852 | }
|
---|
853 | #ifdef WITH_CARDREADER
|
---|
854 | cs_debug_mask(D_TRACE, "matching_reader became slot attribute of %d", slot);
|
---|
855 | if (!is_network_reader(rdr) && slot == 1) {
|
---|
856 | // just check ratelimiter & cooldown, but no srvid assignment in slot
|
---|
857 | if(ecm_ratelimit_check(rdr, er, 0) != OK) return 0; //just check ratelimiter & cooldown
|
---|
858 | }
|
---|
859 | #endif
|
---|
860 | //All checks done, reader is matching!
|
---|
861 | return(1);
|
---|
862 | }
|
---|
863 |
|
---|
864 | int32_t chk_caid(uint16_t caid, CAIDTAB *ctab)
|
---|
865 | {
|
---|
866 | int32_t n, rc;
|
---|
867 | for (rc = -1, n=0; (n < CS_MAXCAIDTAB) && (rc < 0); n++)
|
---|
868 | if ((caid & ctab->mask[n]) == ctab->caid[n])
|
---|
869 | rc = ctab->cmap[n] ? ctab->cmap[n] : caid;
|
---|
870 | return rc;
|
---|
871 | }
|
---|
872 |
|
---|
873 | int32_t chk_caid_rdr(struct s_reader *rdr,uint16_t caid) {
|
---|
874 | if (is_network_reader(rdr)) {
|
---|
875 | return 1; //reader caid is not real caid
|
---|
876 | } else if (rdr->caid==caid) {
|
---|
877 | return 1;
|
---|
878 | }
|
---|
879 | return 0;
|
---|
880 | }
|
---|
881 |
|
---|
882 | int32_t chk_bcaid(ECM_REQUEST *er, CAIDTAB *ctab)
|
---|
883 | {
|
---|
884 | int32_t caid;
|
---|
885 | caid = chk_caid(er->caid, ctab);
|
---|
886 | if (caid < 0)
|
---|
887 | return 0;
|
---|
888 | er->caid = caid;
|
---|
889 | return 1;
|
---|
890 | }
|
---|