1 | #define MODULE_LOG_PREFIX "gbox/remm"
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2 |
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3 | #include "globals.h"
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4 |
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5 | #ifdef MODULE_GBOX
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6 | #include "module-gbox-remm.h"
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7 | #include "module-gbox.h"
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8 | #include "module-gbox-helper.h"
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9 | #include "oscam-string.h"
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10 | #include "oscam-client.h"
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11 | #include "oscam-lock.h"
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12 | #include "oscam-time.h"
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13 | #include "oscam-reader.h"
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14 | #include "oscam-files.h"
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15 | #include "module-dvbapi.h"
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16 | #include "oscam-emm.h"
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17 |
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18 | static void gbox_send_remm_ack_msg(struct s_client *cli, uint16_t caid, uint32_t provider, uint8_t dvbapi_stat, uint8_t ack)
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19 | {
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20 | uint8_t outbuf[32];
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21 | struct gbox_peer *peer = cli->gbox;
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22 | uint16_t local_gbox_id = gbox_get_local_gbox_id();
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23 | uint32_t local_gbox_pw = gbox_get_local_gbox_password();
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24 |
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25 | gbox_message_header(outbuf, MSG_REM_EMM, peer->gbox.password, local_gbox_pw);
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26 | outbuf[10] = MSGID_REMM_ACK;
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27 | i2b_buf(2, peer->gbox.id, outbuf +11);
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28 | i2b_buf(2, local_gbox_id, outbuf + 13);
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29 | outbuf[15] = ack;
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30 | outbuf[16] = dvbapi_stat;
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31 | i2b_buf(2, caid, outbuf +17);
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32 | i2b_buf(4, provider, outbuf +19);
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33 | outbuf[23] = 0;
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34 | outbuf[24] = 0;
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35 | outbuf[25] = 0;
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36 | outbuf[26] = 0;
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37 |
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38 | gbox_send(cli, outbuf, 27);
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39 |
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40 | if (ack == PEER_AU_BLOCKED)
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41 | { cs_log("<- send REJECT REMM msg to peer %04X for caid: %04X", peer->gbox.id, caid); }
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42 |
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43 | if (ack == PEER_AU_READY)
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44 | { cs_log("<- send ACCEPT REMM msg to peer %04X for caid: %04X", peer->gbox.id, caid); }
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45 |
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46 | if (ack == PEER_AU_UNREADY)
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47 | { cs_log("<- send WARNING to peer %04X: my dvbapi unready for AU caid: %04X", peer->gbox.id, caid); }
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48 |
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49 | return;
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50 | }
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51 |
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52 | static void gbox_recvd_remm_ack_msg(struct s_client *cli, uint8_t *buf, int32_t n)
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53 | {
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54 | if (!cli || !cli->gbox || !buf || n != 27) { return; }
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55 | struct gbox_peer *peer;
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56 | peer = cli->gbox;
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57 |
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58 | uint8_t ack = buf[15];
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59 | uint8_t dvbapi_stat = buf[16];
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60 | uint16_t rpeer = b2i(2, buf +11);
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61 | uint16_t rcaid = b2i(2, buf +17);
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62 | //uint32_t rprovid = b2i(4, buf +19);
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63 |
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64 | if (ack == PEER_AU_BLOCKED)
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65 | { cs_log("-> Peer %04X %s rejected REMM for caid %04X - requesting peer %04X blocked", peer->gbox.id, cli->reader->label, rcaid, rpeer ); }
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66 |
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67 | if (ack == PEER_AU_READY)
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68 | { cs_log("-> MSG from peer %04X %s: Accept REMM REQ for caid %04X", peer->gbox.id, cli->reader->label, rcaid); }
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69 |
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70 | if (ack == PEER_AU_UNREADY)
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71 | {
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72 | cs_log("-> WARNING: Peer %04X %s dvbapi AU unready for caid %04X", peer->gbox.id, cli->reader->label, rcaid);
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73 | cs_log_dbg(D_EMM,"Peer %04X dvbapi AU status: dvbapi_au: %1d - dvbapi_usr_autoau: %1d - dvbapi_usr_aulist: %1d",
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74 | peer->gbox.id, (dvbapi_stat & 1) ? 1 : 0, (dvbapi_stat & 2) ? 1 : 0, (dvbapi_stat & 4) ? 1 : 0 );
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75 | }
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76 | }
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77 |
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78 | static uint8_t check_dvbapi_au_ready( void)
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79 | {
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80 | #ifdef HAVE_DVBAPI
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81 | uint8_t dvbapi_stat = 0;
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82 | if (module_dvbapi_enabled())
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83 | {
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84 | if(cfg.dvbapi_au)
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85 | { dvbapi_stat |= 1; }
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86 |
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87 | struct s_client *cl;
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88 | cs_readlock(__func__, &clientlist_lock);
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89 |
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90 | for(cl = first_client; cl; cl = cl->next)
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91 | {
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92 | if(cl->typ == 'c' && cl->account && is_dvbapi_usr(cl->account->usr))
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93 | {
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94 | if(cl->account->autoau)
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95 | {
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96 | dvbapi_stat |= 2;
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97 | break;
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98 | }
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99 |
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100 | if(ll_count(cl->account->aureader_list))
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101 | {
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102 | dvbapi_stat |= 4;
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103 | break;
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104 | }
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105 | }
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106 | }
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107 | cs_readunlock(__func__, &clientlist_lock);
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108 | }
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109 | return dvbapi_stat;
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110 | #else
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111 | return 0;
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112 | #endif
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113 | }
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114 |
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115 | uint8_t check_valid_remm_peer(uint16_t peer_id)
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116 | {
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117 | if (cfg.accept_remm_peer_num > 0)
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118 | {
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119 | int i;
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120 | for (i = 0; i < cfg.accept_remm_peer_num; i++)
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121 | {
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122 | if (cfg.accept_remm_peer[i] == peer_id)
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123 | { return 1; }
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124 | }
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125 | }
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126 | return 0;
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127 | }
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128 |
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129 | static void gbox_recvd_remm_req(struct s_client *cli, uint8_t *buf, int32_t n)
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130 | {
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131 | if (!cli || !cli->gbox || !buf || !cli->reader || n != 122) { return; }
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132 |
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133 | struct gbox_peer *peer;
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134 | peer = cli->gbox;
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135 |
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136 | uint16_t rcaid = b2i(2, buf +23);
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137 | uint32_t rprovid = b2i(4, buf +17);
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138 | //uint16_t tcli_peer = b2i(2, buf +11);
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139 | //uint16_t tsrv_peer = b2i(2, buf +13);
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140 |
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141 | uint8_t dvbapi_stat = check_dvbapi_au_ready();
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142 |
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143 | if (!check_valid_remm_peer( peer->gbox.id))
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144 | {
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145 | gbox_send_remm_ack_msg(cli, rcaid, rprovid, dvbapi_stat, PEER_AU_BLOCKED);
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146 | handle_attack(cli, GBOX_ATTACK_REMM_REQ_BLOCKED, peer->gbox.id);
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147 | cs_log("Reject REMM REQ for caid %04X) - peer %04X blocked for AU", rcaid, peer->gbox.id);
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148 | return;
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149 | }
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150 |
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151 | //if (tcli_peer != local_gbox.id)
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152 | // { forward remm req to target client peer}
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153 |
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154 | struct s_reader *rdr = cli->reader;
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155 | rdr->gbox_remm_peer = peer->gbox.id;
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156 | rdr->last_g = time(NULL); // last receive is now
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157 |
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158 | rdr->auprovid = rprovid;
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159 | rdr->caid = rcaid;
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160 |
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161 | memcpy(rdr->hexserial, buf + 29, 6);
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162 | rdr->hexserial[6] = 0;
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163 | rdr->hexserial[7] = 0;
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164 | rdr->nprov = buf[37];
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165 |
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166 | int32_t i;
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167 | for(i = 0; i < rdr->nprov; i++)
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168 | {
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169 | if(caid_is_betacrypt(rdr->caid) || caid_is_irdeto(rdr->caid))
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170 | {
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171 | rdr->prid[i][0] = buf[38 + (i * 5)];
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172 | memcpy(&rdr->prid[i][1], &buf[40 + (i * 5)], 3);
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173 | }
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174 | else
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175 | {
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176 | rdr->prid[i][2] = buf[38 + (i * 5)];
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177 | rdr->prid[i][3] = buf[39 + (i * 5)];
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178 | memcpy(&rdr->sa[i][0], &buf[40 + (i * 5)], 4);
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179 | }
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180 | }
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181 |
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182 | rdr->blockemm = 0;
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183 | rdr->blockemm |= (buf[117] == 1) ? 0 : 0x80; // remm marker bit
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184 | rdr->blockemm |= (buf[118] == 1) ? 0 : EMM_GLOBAL;
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185 | rdr->blockemm |= (buf[119] == 1) ? 0 : EMM_SHARED;
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186 | rdr->blockemm |= (buf[120] == 1) ? 0 : EMM_UNIQUE;
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187 | rdr->blockemm |= (buf[121] == 1) ? 0 : EMM_UNKNOWN;
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188 |
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189 | cs_log("-> received REMM REQ for type %s%s%s%s caid %04X from peer %04X:%s",
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190 | buf[120]==1 ? "UQ ":"", buf[119]==1 ? "SH ":"", buf[118]==1 ? "GL ":"", buf[121]==1 ? "UK":"",
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191 | rdr->caid, peer->gbox.id, rdr->label);
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192 |
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193 | if (dvbapi_stat == 3 || dvbapi_stat == 5)
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194 | {
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195 | gbox_send_remm_ack_msg(cli, rdr->caid, rdr->auprovid, dvbapi_stat, PEER_AU_READY);
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196 | cs_log_dbg(D_EMM,"my dvbapi ready for AU: dvbapi_au: %1d - dvbapi_usr_autoau: %1d - dvbapi_usr_aulist: %1d",
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197 | (dvbapi_stat & 1) ? 1 : 0, (dvbapi_stat & 2) ? 1 : 0, (dvbapi_stat & 4) ? 1 : 0 );
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198 | }
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199 | else
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200 | {
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201 | gbox_send_remm_ack_msg(cli, rdr->caid, rdr->auprovid, dvbapi_stat, PEER_AU_UNREADY);
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202 | cs_log_dbg(D_EMM,"dvbapi status: dvbapi_au: %1d - dvbapi_usr_autoau: %1d - dvbapi_usr_aulist: %1d",
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203 | (dvbapi_stat & 1) ? 1 : 0, (dvbapi_stat & 2) ? 1 : 0, (dvbapi_stat & 4) ? 1 : 0 );
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204 | }
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205 | write_msg_info(cli, MSGID_REMM, 0, 1);
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206 | }
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207 |
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208 | static void gbox_recvd_remm_data(struct s_client *cli, uint8_t *buf, int32_t buflen, int32_t emmlen)
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209 | {
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210 | if(!cli || !cli->gbox || !buf || buflen < 30 || emmlen +27 > buflen || emmlen < 3 || emmlen + 27 > MAX_EMM_SIZE)
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211 | { return; }
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212 |
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213 | struct gbox_peer *peer;
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214 | peer = cli->gbox;
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215 |
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216 | uint16_t rcaid = b2i(2, buf + 15);
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217 | uint32_t recvd_remm_crc = b2i(4, buf + 23);
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218 | uint32_t calc_remm_crc = gbox_get_checksum(&buf[0] +27, emmlen);
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219 | cs_log_dbg(D_EMM,"received remm from peer: %04X caid: %04X (remm_crc = %08X - calc_remm_crc = %08X)",
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220 | peer->gbox.id, rcaid, recvd_remm_crc, calc_remm_crc);
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221 |
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222 | if(recvd_remm_crc == calc_remm_crc)
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223 | {
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224 | EMM_PACKET remm;
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225 | memset(&remm, 0, sizeof(remm));
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226 | remm.emmlen = emmlen;
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227 | memcpy(remm.caid, buf +15, 2);
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228 | memcpy(remm.provid, buf +17 , 4);
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229 | memcpy(remm.emm, buf +27, remm.emmlen);
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230 | do_emm(cur_client(), &remm);
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231 | }
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232 | else
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233 | {
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234 | cs_log_dbg(D_EMM,"reject received REMM from peer %04X caid: %04X - crc failed - %08X != %08X",
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235 | peer->gbox.id, rcaid, recvd_remm_crc, calc_remm_crc);
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236 | }
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237 |
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238 | return;
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239 | }
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240 |
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241 | void gbox_recvd_remm_cmd_switch(struct s_client *cli, uint8_t *buf, int32_t n)
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242 | {
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243 | if (!cli || !cli->gbox || !buf || n < 26) { return; }
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244 |
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245 | struct gbox_peer *peer;
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246 | peer = cli->gbox;
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247 | uint8_t cmd_id = buf[10];
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248 |
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249 | switch(cmd_id)
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250 | {
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251 | case MSGID_REMM_REQ:
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252 | cs_log_dbg(D_EMM,"-> Incoming REMM request (%d bytes) from %04X %s - %s",
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253 | n, peer->gbox.id, username(cli), cli->reader->device);
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254 | gbox_recvd_remm_req(cli, buf, n);
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255 | break;
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256 |
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257 | case MSGID_REMM_DATA:
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258 | cs_log_dbg(D_EMM,"-> Incoming gbox remote EMM data (%d bytes total - %d bytes emm-len) from %04X %s - %s",
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259 | n, buf[21], peer->gbox.id, username(cli), cli->reader->device);
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260 | gbox_recvd_remm_data(cli, buf, n, buf[21]); // buf[21]) = emm length
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261 | break;
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262 |
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263 | case MSGID_REMM_ACK:
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264 | cs_log_dbg(D_EMM,"-> Incoming REMM ACK (%d bytes) from %04X %s - %s",
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265 | n, peer->gbox.id, username(cli), cli->reader->device);
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266 | gbox_recvd_remm_ack_msg(cli, buf, n);
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267 | break;
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268 |
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269 | default:
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270 | cs_log("received unknown remm cmd_id: %d %d bytes from %04X %s - %s",
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271 | cmd_id, n, peer->gbox.id, username(cli), cli->reader->device);
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272 | return;
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273 | }
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274 | }
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275 |
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276 | void gbox_send_remm_req(struct s_client *cli, ECM_REQUEST *er)
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277 | {
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278 | if (!cli || !cli->gbox || !er) { return; }
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279 | int32_t i;
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280 | uint8_t mbuf[1024];
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281 | struct s_client *cl = cur_client();
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282 | struct gbox_peer *peer = cli->gbox;
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283 | struct s_reader *aureader = NULL, *rdr = NULL;
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284 |
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285 | if(er->selected_reader && !er->selected_reader->audisabled && ll_contains(cl->aureader_list, er->selected_reader))
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286 | { aureader = er->selected_reader; }
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287 |
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288 | if(!aureader && cl->aureader_list)
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289 | {
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290 | LL_ITER itr = ll_iter_create(cl->aureader_list);
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291 | while((rdr = ll_iter_next(&itr)))
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292 | {
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293 | if(emm_reader_match(rdr, er->caid, er->prid))
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294 | {
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295 | aureader = rdr;
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296 | break;
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297 | }
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298 | }
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299 | }
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300 |
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301 | if(!aureader)
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302 | { return; }
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303 |
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304 | uint16_t au_caid = aureader->caid;
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305 |
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306 | if(!au_caid && caid_is_bulcrypt(er->caid)) // Bulcrypt has 2 caids and aureader->caid can't be used. Use ECM_REQUEST caid for AU.
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307 | { au_caid = er->caid; }
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308 |
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309 | if(cl->lastcaid != er->caid)
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310 | { cl->disable_counter = 0; }
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311 |
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312 | cl->lastcaid = er->caid;
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313 | cl->disable_counter++;
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314 |
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315 | if (!cli->reader->gbox_force_remm && cl->disable_counter < 6) // delay 6 ecm
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316 | { return; }
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317 |
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318 | if(!memcmp(cl->lastserial, aureader->hexserial, 8))
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319 | {
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320 | cl->disable_counter = 0;
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321 | return;
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322 | }
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323 |
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324 | memcpy(cl->lastserial, aureader->hexserial, 8);
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325 |
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326 | if(au_caid)
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327 | { cl->disable_counter = 0; }
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328 | else
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329 | { return; }
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330 |
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331 | uint8_t total_ent = 0;
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332 | uint8_t active_ent = 0;
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333 |
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334 | if(aureader->ll_entitlements) // check for active entitlements
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335 | {
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336 | time_t now = time((time_t *)0);
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337 | LL_ITER itr = ll_iter_create(aureader->ll_entitlements);
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338 | S_ENTITLEMENT *ent;
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339 |
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340 | while((ent = ll_iter_next(&itr)))
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341 | {
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342 | total_ent++;
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343 | if((ent->end > now) && (ent->type != 7))
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344 | {
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345 | active_ent++;
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346 | }
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347 | }
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348 | //cs_log("AU card %s: Total entitlements: %d - active entitlements: %d", aureader->label, total_ent, active_ent);
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349 | }
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350 |
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351 | if(total_ent && cli->reader->gbox_force_remm)
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352 | {
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353 | if(active_ent >= cli->reader->gbox_force_remm)
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354 | {
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355 | cs_log("WARNING: Card '%s' got %d active entitlements - consider to disable 'force_remm'", aureader->label, active_ent);
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356 | }
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357 | }
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358 |
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359 | memset(mbuf, 0, sizeof(mbuf));
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360 |
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361 | uint16_t local_gbox_id = gbox_get_local_gbox_id();
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362 | uint32_t local_gbox_pw = gbox_get_local_gbox_password();
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363 |
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364 | gbox_message_header(mbuf, MSG_REM_EMM, peer->gbox.password, local_gbox_pw);
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365 | mbuf[10] = MSGID_REMM_REQ;
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366 | i2b_buf(2, peer->gbox.id, mbuf + 11);
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367 | i2b_buf(2, local_gbox_id, mbuf + 13);
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368 | i2b_buf(2, er->srvid, mbuf + 15);
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369 |
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370 | // override emm provid with auprovid if set in server reader config
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371 | if(aureader->auprovid)
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372 | {
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373 | if(aureader->auprovid != er->prid)
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374 | { i2b_buf(4, aureader->auprovid, mbuf +17); }
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375 | else
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376 | { i2b_buf(4, er->prid, mbuf +17); }
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377 | }
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378 | else
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379 | {
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380 | i2b_buf(4, er->prid, mbuf +17);
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381 | }
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382 |
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383 | i2b_buf(2, er->pid, mbuf +21);
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384 | i2b_buf(2, au_caid, mbuf +23);
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385 |
|
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386 | memcpy(mbuf +29, aureader->hexserial, 6); // serial 6 bytes
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387 | mbuf[37] = aureader->nprov;
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388 |
|
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389 | for(i = 0; i < aureader->nprov; i++)
|
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390 | {
|
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391 | if(caid_is_betacrypt(au_caid) || caid_is_irdeto(au_caid))
|
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392 | {
|
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393 | mbuf[38 + (i * 5)] = aureader->prid[i][0];
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394 | memcpy(&mbuf[40 + (i * 5)], &aureader->prid[i][1], 3);
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395 | }
|
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396 | else
|
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397 | {
|
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398 | mbuf[38 + (i * 5)] = aureader->prid[i][2];
|
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399 | mbuf[39 + (i * 5)] = aureader->prid[i][3];
|
---|
400 | memcpy(&mbuf[40 + (i * 5)], &aureader->sa[i][0], 4); // for conax we need at least 4 Bytes
|
---|
401 | }
|
---|
402 | if(i >= 15) { break; }
|
---|
403 | }
|
---|
404 |
|
---|
405 | mbuf[117] = aureader->blockemm | 0x80; // set remm marker bit
|
---|
406 |
|
---|
407 | if(au_caid == 0x0D96 || au_caid == 0x0D98 ) // these caids needs globals
|
---|
408 | { mbuf[118] = (aureader->blockemm & EMM_GLOBAL && !(aureader->saveemm & EMM_GLOBAL)) ? 0 : 1; }
|
---|
409 | else
|
---|
410 | { mbuf[118] = 0; }
|
---|
411 |
|
---|
412 | mbuf[119] = (aureader->blockemm & EMM_SHARED && !(aureader->saveemm & EMM_SHARED)) ? 0 : 1;
|
---|
413 | mbuf[120] = (aureader->blockemm & EMM_UNIQUE && !(aureader->saveemm & EMM_UNIQUE)) ? 0 : 1;
|
---|
414 | mbuf[121] = (aureader->blockemm & EMM_UNKNOWN && !(aureader->saveemm & EMM_UNKNOWN)) ? 0 : 1;
|
---|
415 |
|
---|
416 | cs_log("<- %04X sends REMM REQ for type = %s%s%s%s to %s peer-id=%04X for reader=%s, caid=%04X", local_gbox_id,
|
---|
417 | mbuf[120] == 1 ? "UQ " : "", mbuf[119] == 1 ? "SH " : "", mbuf[118] == 1 ? "GL " : "", mbuf[121] == 1 ? "UK" : "",
|
---|
418 | username(cur_client()), peer->gbox.id, aureader->label, au_caid );
|
---|
419 |
|
---|
420 | cs_log_dump_dbg(D_EMM, mbuf, 122, "<- send remm request, (data_len=%d):", 122);
|
---|
421 | gbox_send(cli, mbuf, 122);
|
---|
422 | return;
|
---|
423 | }
|
---|
424 |
|
---|
425 | int32_t gbox_send_remm_data(EMM_PACKET *ep)
|
---|
426 | {
|
---|
427 | struct s_client *cli = cur_client();
|
---|
428 | struct gbox_peer *peer = cli->gbox;
|
---|
429 |
|
---|
430 | if(!cli->gbox || !cli->reader->tcp_connected || !ep || !cli->reader->gbox_remm_peer)
|
---|
431 | { return 0; }
|
---|
432 |
|
---|
433 | uint32_t remm_crc = gbox_get_checksum(&ep->emm[0], ep->emmlen);
|
---|
434 |
|
---|
435 | if(remm_crc == peer->last_remm_crc)
|
---|
436 | { return 0; }
|
---|
437 |
|
---|
438 | peer->last_remm_crc = remm_crc;
|
---|
439 |
|
---|
440 | uint8_t *buf;
|
---|
441 |
|
---|
442 | if(!cs_malloc(&buf, ep->emmlen +27 +15))
|
---|
443 | { return -1; }
|
---|
444 |
|
---|
445 | memset(buf, 0, 26);
|
---|
446 | memset(buf +27, 0xff, ep->emmlen + 15);
|
---|
447 |
|
---|
448 | uint16_t local_gbox_id = gbox_get_local_gbox_id();
|
---|
449 | uint32_t local_gbox_pw = gbox_get_local_gbox_password();
|
---|
450 |
|
---|
451 | gbox_message_header(buf, MSG_REM_EMM, peer->gbox.password, local_gbox_pw);
|
---|
452 | buf[10] = MSGID_REMM_DATA;
|
---|
453 | i2b_buf(2, peer->gbox.id, buf +11);
|
---|
454 | i2b_buf(2, local_gbox_id, buf +13);
|
---|
455 | memcpy(buf +15, ep->caid, 2);
|
---|
456 | memcpy(buf +17, ep->provid, 4);
|
---|
457 | buf[21] = ep->emmlen;
|
---|
458 | i2b_buf(4, remm_crc, buf +23);
|
---|
459 | memcpy(buf +27, ep->emm, ep->emmlen);
|
---|
460 | cs_log("<- send remm to: %s peer: %04X emmlength: %d crc: %08X",
|
---|
461 | username(cur_client()), peer->gbox.id, ep->emmlen, remm_crc);
|
---|
462 | cs_log_dump_dbg(D_EMM, buf, 27 + ep->emmlen, "<- gbox send emm, (data-len=%d):", 27 + ep->emmlen);
|
---|
463 | gbox_send(cli, buf, 27 + ep->emmlen);
|
---|
464 |
|
---|
465 | NULLFREE(buf);
|
---|
466 | return 1;
|
---|
467 | }
|
---|
468 | #endif
|
---|
469 |
|
---|