1 | #define MODULE_LOG_PREFIX "cccam"
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2 |
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3 | #include "globals.h"
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4 | #include "oscam-array.h"
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5 |
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6 | #if defined(CS_CACHEEX) && defined(MODULE_CCCAM)
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7 |
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8 | #include "module-cacheex.h"
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9 | #include "module-cccam-data.h"
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10 | #include "module-cccam-cacheex.h"
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11 | #include "oscam-cache.h"
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12 | #include "oscam-client.h"
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13 | #include "oscam-ecm.h"
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14 | #include "oscam-string.h"
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15 | #include "oscam-chk.h"
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16 | #include "oscam-reader.h"
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17 |
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18 | #define CSP_HASH_SWAP(n) (((((uint32_t)(n) & 0xFF)) << 24) | \
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19 | ((((uint32_t)(n) & 0xFF00)) << 8) | \
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20 | ((((uint32_t)(n) & 0xFF0000)) >> 8) | \
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21 | ((((uint32_t)(n) & 0xFF000000)) >> 24))
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22 |
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23 | extern int32_t cc_cli_connect(struct s_client *cl);
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24 | extern int32_t cc_cmd_send(struct s_client *cl, uint8_t *buf, int32_t len, cc_msg_type_t cmd);
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25 |
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26 | void cc_cacheex_filter_out(struct s_client *cl)
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27 | {
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28 | struct s_reader *rdr = (cl->typ == 'c') ? NULL : cl->reader;
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29 | int i = 0, j;
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30 | CECSPVALUETAB *filter;
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31 | int32_t size = 482; // minimal size, keep it <= 512 for max UDP packet size without fragmentation
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32 | uint8_t buf[482];
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33 | memset(buf, 0, sizeof(buf));
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34 |
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35 | if(rdr && rdr->cacheex.mode == 2) // mode == 2 send filters from rdr
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36 | {
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37 | filter = &rdr->cacheex.filter_caidtab;
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38 | }
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39 | else if(cl->typ == 'c' && cl->account && cl->account->cacheex.mode == 3) // mode == 3 send filters from acc
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40 | {
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41 | filter = &cl->account->cacheex.filter_caidtab;
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42 | }
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43 | else
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44 | {
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45 | return;
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46 | }
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47 |
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48 | i2b_buf(2, filter->cevnum, buf + i);
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49 | i += 2;
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50 |
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51 | int32_t max_filters = 30;
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52 | for(j = 0; j < max_filters; j++)
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53 | {
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54 | if(filter->cevnum > j)
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55 | {
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56 | CECSPVALUETAB_DATA *d = &filter->cevdata[j];
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57 | i2b_buf(4, d->caid, buf + i);
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58 | }
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59 | i += 4;
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60 | }
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61 |
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62 | for(j = 0; j < max_filters; j++)
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63 | {
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64 | if(filter->cevnum > j)
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65 | {
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66 | CECSPVALUETAB_DATA *d = &filter->cevdata[j];
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67 | i2b_buf(4, d->cmask, buf + i);
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68 | }
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69 | i += 4;
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70 | }
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71 |
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72 | for(j = 0; j < max_filters; j++)
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73 | {
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74 | if(filter->cevnum > j)
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75 | {
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76 | CECSPVALUETAB_DATA *d = &filter->cevdata[j];
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77 | i2b_buf(4, d->prid, buf + i);
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78 | }
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79 | i += 4;
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80 | }
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81 |
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82 | for(j = 0; j < max_filters; j++)
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83 | {
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84 | if(filter->cevnum > j)
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85 | {
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86 | CECSPVALUETAB_DATA *d = &filter->cevdata[j];
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87 | i2b_buf(4, d->srvid, buf + i);
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88 | }
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89 | i += 4;
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90 | }
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91 |
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92 | cs_log_dbg(D_CACHEEX, "cacheex: sending push filter request to %s", username(cl));
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93 | cc_cmd_send(cl, buf, size, MSG_CACHE_FILTER);
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94 | }
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95 |
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96 | void cc_cacheex_filter_in(struct s_client *cl, uint8_t *buf)
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97 | {
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98 | struct s_reader *rdr = (cl->typ == 'c') ? NULL : cl->reader;
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99 | int i = 0, j;
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100 | int32_t caid, cmask, provid, srvid;
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101 | CECSPVALUETAB *filter;
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102 |
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103 | // mode == 2 write filters to acc
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104 | if(cl->typ == 'c' && cl->account && cl->account->cacheex.mode == 2 && cl->account->cacheex.allow_filter == 1)
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105 | {
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106 | filter = &cl->account->cacheex.filter_caidtab;
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107 | }
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108 | else if(rdr && rdr->cacheex.mode == 3 && rdr->cacheex.allow_filter == 1) // mode == 3 write filters to rdr
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109 | {
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110 | filter = &rdr->cacheex.filter_caidtab;
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111 | }
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112 | else
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113 | {
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114 | return;
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115 | }
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116 |
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117 | cecspvaluetab_clear(filter);
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118 | i += 2;
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119 |
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120 | int32_t max_filters = 30;
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121 | for(j = 0; j < max_filters; j++)
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122 | {
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123 | caid = b2i(4, buf + i);
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124 | if(caid > 0)
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125 | {
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126 | CECSPVALUETAB_DATA d;
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127 | memset(&d, 0, sizeof(d));
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128 | d.caid = b2i(4, buf + i);
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129 | cecspvaluetab_add(filter, &d);
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130 | }
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131 | i += 4;
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132 | }
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133 |
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134 | for(j = 0; j < max_filters; j++)
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135 | {
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136 | cmask = b2i(4, buf + i);
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137 | if(j < filter->cevnum)
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138 | {
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139 | CECSPVALUETAB_DATA *d = &filter->cevdata[j];
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140 | d->cmask = cmask;
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141 | }
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142 | i += 4;
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143 | }
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144 |
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145 | for(j = 0; j < max_filters; j++)
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146 | {
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147 | provid = b2i(4, buf + i);
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148 | if(j < filter->cevnum)
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149 | {
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150 | CECSPVALUETAB_DATA *d = &filter->cevdata[j];
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151 | d->prid = provid;
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152 | }
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153 | i += 4;
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154 | }
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155 |
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156 | for(j = 0; j < max_filters; j++)
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157 | {
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158 | srvid = b2i(4, buf + i);
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159 | if(j < filter->cevnum)
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160 | {
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161 | CECSPVALUETAB_DATA *d = &filter->cevdata[j];
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162 | d->srvid = srvid;
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163 | }
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164 | i += 4;
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165 | }
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166 |
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167 | cs_log_dbg(D_CACHEEX, "cacheex: received push filter request from %s", username(cl));
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168 | }
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169 |
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170 | static int32_t cc_cacheex_push_chk(struct s_client *cl, struct ecm_request_t *er)
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171 | {
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172 | struct cc_data *cc = cl->cc;
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173 | if(chk_is_null_nodeid(cc->peer_node_id,8))
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174 | {
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175 | cs_log_dbg(D_CACHEEX, "cacheex: NO peer_node_id got yet, skip!");
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176 | return 0;
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177 | }
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178 |
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179 | if(ll_count(er->csp_lastnodes) >= cacheex_maxhop(cl)) // check max 10 nodes to push
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180 | {
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181 | cs_log_dbg(D_CACHEEX, "cacheex: nodelist reached %d nodes, no push", cacheex_maxhop(cl));
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182 | return 0;
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183 | }
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184 |
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185 | uint8_t *remote_node = cc->peer_node_id;
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186 |
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187 | // search existing peer nodes
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188 | LL_LOCKITER *li = ll_li_create(er->csp_lastnodes, 0);
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189 | uint8_t *node;
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190 | while((node = ll_li_next(li)))
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191 | {
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192 | cs_log_dbg(D_CACHEEX, "cacheex: check node %" PRIu64 "X == %" PRIu64 "X ?",
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193 | cacheex_node_id(node), cacheex_node_id(remote_node));
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194 |
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195 | if(memcmp(node, remote_node, 8) == 0)
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196 | {
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197 | break;
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198 | }
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199 | }
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200 | ll_li_destroy(li);
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201 |
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202 | // node found, so we got it from there, do not push
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203 | if(node)
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204 | {
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205 | cs_log_dbg(D_CACHEEX, "cacheex: node %" PRIu64 "X found in list => skip push!", cacheex_node_id(node));
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206 | return 0;
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207 | }
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208 |
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209 | if(!cl->cc)
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210 | {
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211 | if(cl->reader && !cl->reader->tcp_connected)
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212 | {
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213 | cc_cli_connect(cl);
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214 | }
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215 | }
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216 |
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217 | if(!cc || !cl->udp_fd)
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218 | {
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219 | cs_log_dbg(D_CACHEEX, "cacheex: not connected %s -> no push", username(cl));
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220 | return 0;
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221 | }
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222 |
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223 | // check if cw is already pushed
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224 | if(check_is_pushed(er->cw_cache, cl))
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225 | {
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226 | return 0;
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227 | }
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228 |
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229 | return 1;
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230 | }
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231 |
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232 | static int32_t cc_cacheex_push_out(struct s_client *cl, struct ecm_request_t *er)
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233 | {
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234 | int8_t rc = (er->rc < E_NOTFOUND) ? E_FOUND : er->rc;
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235 |
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236 | if(rc != E_FOUND && rc != E_UNHANDLED)
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237 | {
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238 | return -1; // Maybe later we could support other rcs
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239 | }
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240 |
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241 | if(cl->reader)
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242 | {
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243 | if(!cl->reader->tcp_connected)
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244 | {
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245 | cc_cli_connect(cl);
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246 | }
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247 | }
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248 |
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249 | struct cc_data *cc = cl->cc;
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250 | if(!cc || !cl->udp_fd)
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251 | {
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252 | cs_log_dbg(D_CACHEEX, "cacheex: not connected %s -> no push", username(cl));
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253 | return (-1);
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254 | }
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255 |
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256 | uint32_t size = sizeof(er->ecmd5) + sizeof(er->csp_hash) + sizeof(er->cw) + sizeof(uint8_t) +
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257 | (ll_count(er->csp_lastnodes) + 1) * 8;
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258 |
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259 | uint8_t *buf;
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260 | if(!cs_malloc(&buf, size + 20)) // camd35_send() adds +20
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261 | {
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262 | return -1;
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263 | }
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264 |
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265 | // build ecm message
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266 | //buf[0] = er->caid >> 8;
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267 | //buf[1] = er->caid & 0xff;
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268 | //buf[2] = er->prid >> 24;
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269 | //buf[3] = er->prid >> 16;
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270 | //buf[4] = er->prid >> 8;
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271 | //buf[5] = er->prid & 0xff;
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272 | //buf[10] = er->srvid >> 8;
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273 | //buf[11] = er->srvid & 0xff;
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274 | buf[12] = (sizeof(er->ecmd5) + sizeof(er->csp_hash) + sizeof(er->cw)) & 0xff;
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275 | buf[13] = (sizeof(er->ecmd5) + sizeof(er->csp_hash) + sizeof(er->cw)) >> 8;
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276 | //buf[12] = 0;
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277 | //buf[13] = 0;
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278 | buf[14] = rc;
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279 |
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280 | i2b_buf(2, er->caid, buf + 0);
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281 | i2b_buf(4, er->prid, buf + 2);
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282 | i2b_buf(2, er->srvid, buf + 10);
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283 |
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284 | if(er->cwc_cycletime && er->cwc_next_cw_cycle < 2)
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285 | {
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286 | buf[18] = er->cwc_cycletime; // contains cwc stage3 cycletime
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287 |
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288 | if(er->cwc_next_cw_cycle == 1)
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289 | {
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290 | buf[18] = (buf[18] | 0x80); // set bit 8 to high
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291 | }
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292 |
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293 | if(cl->typ == 'c' && cl->account && cl->account->cacheex.mode)
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294 | {
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295 | cl->account->cwc_info++;
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296 | }
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297 | else if((cl->typ == 'p' || cl->typ == 'r') && (cl->reader && cl->reader->cacheex.mode))
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298 | {
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299 | cl->cwc_info++;
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300 | }
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301 |
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302 | cs_log_dbg(D_CWC, "CWC (CE) push to %s cycletime: %isek - nextcwcycle: CW%i for %04X@%06X:%04X",
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303 | username(cl), er->cwc_cycletime, er->cwc_next_cw_cycle, er->caid, er->prid, er->srvid);
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304 | }
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305 |
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306 | buf[19] = er->ecm[0] != 0x80 && er->ecm[0] != 0x81 ? 0 : er->ecm[0];
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307 |
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308 | uint8_t *ofs = buf + 20;
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309 |
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310 | // write oscam ecmd5
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311 | memcpy(ofs, er->ecmd5, sizeof(er->ecmd5)); // 16
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312 | ofs += sizeof(er->ecmd5);
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313 |
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314 | // write csp hashcode
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315 | i2b_buf(4, CSP_HASH_SWAP(er->csp_hash), ofs);
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316 | ofs += 4;
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317 |
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318 | // write cw
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319 | memcpy(ofs, er->cw, sizeof(er->cw)); // 16
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320 | ofs += sizeof(er->cw);
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321 |
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322 | // write node count
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323 | *ofs = ll_count(er->csp_lastnodes) + 1;
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324 | ofs++;
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325 |
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326 | // write own node
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327 | memcpy(ofs, cc->node_id, 8);
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328 | ofs += 8;
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329 |
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330 | // write other nodes
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331 | LL_LOCKITER *li = ll_li_create(er->csp_lastnodes, 0);
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332 | uint8_t *node;
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333 | while((node = ll_li_next(li)))
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334 | {
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335 | memcpy(ofs, node, 8);
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336 | ofs += 8;
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337 | }
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338 | ll_li_destroy(li);
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339 |
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340 | int32_t res = cc_cmd_send(cl, buf, size + 20, MSG_CACHE_PUSH);
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341 | if(res > 0) // cache-ex is pushing out, so no receive but last_g should be updated otherwise disconnect!
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342 | {
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343 | if(cl->reader)
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344 | {
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345 | cl->reader->last_s = cl->reader->last_g = time((time_t *)0); // correct
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346 | }
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347 |
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348 | if(cl)
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349 | {
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350 | cl->last = time(NULL);
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351 | }
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352 | }
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353 |
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354 | NULLFREE(buf);
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355 | return res;
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356 | }
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357 |
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358 | void cc_cacheex_push_in(struct s_client *cl, uint8_t *buf)
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359 | {
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360 | struct cc_data *cc = cl->cc;
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361 | ECM_REQUEST *er;
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362 |
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363 | if(!cc)
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364 | {
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365 | return;
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366 | }
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367 |
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368 | if(cl->reader)
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369 | {
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370 | cl->reader->last_s = cl->reader->last_g = time((time_t *)0);
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371 | }
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372 |
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373 | if(cl)
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374 | {
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375 | cl->last = time(NULL);
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376 | }
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377 |
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378 | int8_t rc = buf[14];
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379 | if(rc != E_FOUND && rc != E_UNHANDLED) // Maybe later we could support other rcs
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380 | {
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381 | return;
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382 | }
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383 |
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384 | uint16_t size = buf[12] | (buf[13] << 8);
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385 | if(size != sizeof(er->ecmd5) + sizeof(er->csp_hash) + sizeof(er->cw))
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386 | {
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387 | cs_log_dbg(D_CACHEEX, "cacheex: %s received old cash-push format! data ignored!", username(cl));
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388 | return;
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389 | }
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390 |
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391 | if(!(er = get_ecmtask()))
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392 | {
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393 | return;
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394 | }
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395 |
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396 | er->caid = b2i(2, buf + 0);
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397 | er->prid = b2i(4, buf + 2);
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398 | er->srvid = b2i(2, buf + 10);
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399 | er->ecm[0] = buf[19] != 0x80 && buf[19] != 0x81 ? 0 : buf[19]; // odd/even byte, usefull to send it over CSP and to check cw for swapping
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400 | er->rc = rc;
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401 |
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402 | er->ecmlen = 0;
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403 |
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404 | if(buf[18])
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405 | {
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406 | if(buf[18] & (0x01 << 7))
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407 | {
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408 | er->cwc_cycletime = (buf[18] & 0x7F); // remove bit 8 to get cycletime
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409 | er->cwc_next_cw_cycle = 1;
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410 | }
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411 | else
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412 | {
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413 | er->cwc_cycletime = buf[18];
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414 | er->cwc_next_cw_cycle = 0;
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415 | }
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416 | }
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417 |
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418 | if (er->cwc_cycletime && er->cwc_next_cw_cycle < 2)
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419 | {
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420 | if(cl->typ == 'c' && cl->account && cl->account->cacheex.mode)
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421 | {
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422 | cl->account->cwc_info++;
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423 | }
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424 | else if((cl->typ == 'p' || cl->typ == 'r') && (cl->reader && cl->reader->cacheex.mode))
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425 | {
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426 | cl->cwc_info++;
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427 | }
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428 |
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429 | cs_log_dbg(D_CWC, "CWC (CE) received from %s cycletime: %isek - nextcwcycle: CW%i for %04X@%06X:%04X",
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430 | username(cl), er->cwc_cycletime, er->cwc_next_cw_cycle, er->caid, er->prid, er->srvid);
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431 | }
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432 |
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433 | uint8_t *ofs = buf + 20;
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434 |
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435 | // Read ecmd5
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436 | memcpy(er->ecmd5, ofs, sizeof(er->ecmd5)); // 16
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437 | ofs += sizeof(er->ecmd5);
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438 |
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439 | if(!check_cacheex_filter(cl, er))
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440 | {
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441 | return;
|
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442 | }
|
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443 |
|
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444 | // Read csp_hash
|
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445 | er->csp_hash = CSP_HASH_SWAP(b2i(4, ofs));
|
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446 | ofs += 4;
|
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447 |
|
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448 | // Read cw
|
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449 | memcpy(er->cw, ofs, sizeof(er->cw)); // 16
|
---|
450 | ofs += sizeof(er->cw);
|
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451 |
|
---|
452 | // Read lastnode count
|
---|
453 | uint8_t count = *ofs;
|
---|
454 | ofs++;
|
---|
455 |
|
---|
456 | // check max nodes
|
---|
457 | if(count > cacheex_maxhop(cl))
|
---|
458 | {
|
---|
459 | cs_log_dbg(D_CACHEEX, "cacheex: received %d nodes (max=%d), ignored! %s",
|
---|
460 | (int32_t)count, cacheex_maxhop(cl), username(cl));
|
---|
461 |
|
---|
462 | NULLFREE(er);
|
---|
463 | return;
|
---|
464 | }
|
---|
465 |
|
---|
466 | cs_log_dbg(D_CACHEEX, "cacheex: received %d nodes %s", (int32_t)count, username(cl));
|
---|
467 |
|
---|
468 | // Read lastnodes
|
---|
469 | uint8_t *data;
|
---|
470 | if (er)
|
---|
471 | {
|
---|
472 | er->csp_lastnodes = ll_create("csp_lastnodes");
|
---|
473 | }
|
---|
474 |
|
---|
475 | while(count)
|
---|
476 | {
|
---|
477 | if(!cs_malloc(&data, 8))
|
---|
478 | {
|
---|
479 | break;
|
---|
480 | }
|
---|
481 |
|
---|
482 | memcpy(data, ofs, 8);
|
---|
483 | ofs += 8;
|
---|
484 | ll_append(er->csp_lastnodes, data);
|
---|
485 | count--;
|
---|
486 |
|
---|
487 | cs_log_dbg(D_CACHEEX, "cacheex: received node %" PRIu64 "X %s", cacheex_node_id(data), username(cl));
|
---|
488 | }
|
---|
489 |
|
---|
490 | // for compatibility: add peer node if no node received
|
---|
491 | if(!ll_count(er->csp_lastnodes))
|
---|
492 | {
|
---|
493 | if(!cs_malloc(&data, 8))
|
---|
494 | {
|
---|
495 | return;
|
---|
496 | }
|
---|
497 |
|
---|
498 | memcpy(data, cc->peer_node_id, 8);
|
---|
499 | ll_append(er->csp_lastnodes, data);
|
---|
500 | cs_log_dbg(D_CACHEEX, "cacheex: added missing remote node id %" PRIu64 "X", cacheex_node_id(data));
|
---|
501 | }
|
---|
502 |
|
---|
503 | cacheex_add_to_cache(cl, er);
|
---|
504 | }
|
---|
505 |
|
---|
506 | void cc_cacheex_module_init(struct s_module *ph)
|
---|
507 | {
|
---|
508 | ph->c_cache_push = cc_cacheex_push_out;
|
---|
509 | ph->c_cache_push_chk = cc_cacheex_push_chk;
|
---|
510 | }
|
---|
511 |
|
---|
512 | #endif
|
---|