1 | #include "globals.h"
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2 | #ifdef MODULE_CAMD33
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3 | #include "oscam-aes.h"
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4 | #include "oscam-client.h"
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5 | #include "oscam-ecm.h"
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6 | #include "oscam-emm.h"
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7 | #include "oscam-net.h"
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8 | #include "oscam-string.h"
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9 |
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10 | #define REQ_SIZE 4
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11 |
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12 | static int32_t camd33_send(uchar *buf, int32_t ml)
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13 | {
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14 | int32_t l;
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15 | if (!cur_client()->pfd) return(-1);
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16 | l=boundary(4, ml);
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17 | memset(buf+ml, 0, l-ml);
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18 | cs_ddump_mask(D_CLIENT, buf, l, "send %d bytes to client", l);
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19 | if (cur_client()->crypted)
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20 | aes_encrypt_idx(cur_client(), buf, l);
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21 | return(send(cur_client()->pfd, buf, l, 0));
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22 | }
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23 |
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24 | static int32_t camd33_recv(struct s_client * client, uchar *buf, int32_t l)
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25 | {
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26 | int32_t n;
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27 | if (!client->pfd) return(-1);
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28 | if ((n=recv(client->pfd, buf, l, 0))>0)
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29 | {
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30 | client->last=time((time_t *) 0);
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31 | if (client->crypted)
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32 | aes_encrypt_idx(cur_client(), buf, n);
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33 | }
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34 | cs_ddump_mask(D_CLIENT, buf, n, "received %d bytes from client", n);
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35 | return(n);
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36 | }
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37 |
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38 | static void camd33_request_emm(void)
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39 | {
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40 | uchar mbuf[20];
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41 | struct s_reader *aureader = NULL, *rdr = NULL;
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42 |
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43 | //TODO: just take the first reader in list
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44 | LL_ITER itr = ll_iter_create(cur_client()->aureader_list);
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45 | while ((rdr = ll_iter_next(&itr))) {
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46 | aureader=rdr;
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47 | break;
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48 | }
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49 |
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50 | if (!aureader) return;
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51 |
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52 | if (aureader->hexserial[0])
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53 | {
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54 | cs_log("%s emm-request sent (reader=%s, caid=%04X, auprovid=%06X)",
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55 | username(cur_client()), aureader->label, aureader->caid,
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56 | aureader->auprovid ? aureader->auprovid : b2i(4, aureader->prid[0]));
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57 | mbuf[0]=0;
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58 | mbuf[1]=aureader->caid>>8;
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59 | mbuf[2]=aureader->caid&0xff;
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60 | memcpy(mbuf+3, aureader->hexserial, 4);
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61 | memcpy(mbuf+7, &aureader->prid[0][1], 3);
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62 | memcpy(mbuf+10, &aureader->prid[2][1], 3);
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63 | camd33_send(mbuf, 13);
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64 | }
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65 | }
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66 |
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67 | static void camd33_auth_client(uchar *camdbug)
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68 | {
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69 | int32_t i, rc;
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70 | uchar *usr=NULL, *pwd=NULL;
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71 | struct s_auth *account;
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72 | uchar mbuf[1024];
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73 | struct s_client *cl = cur_client();
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74 |
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75 | cl->crypted=cfg.c33_crypted;
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76 |
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77 | if (cl->crypted)
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78 | cl->crypted = !check_ip(cfg.c33_plain, cl->ip);
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79 |
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80 | if (cl->crypted)
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81 | aes_set_key(cl, (char *)cfg.c33_key);
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82 |
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83 | mbuf[0]=0;
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84 | camd33_send(mbuf, 1); // send login-request
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85 |
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86 | for (rc=0, camdbug[0]=0, mbuf[0]=1; (rc<2) && (mbuf[0]); rc++)
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87 | {
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88 | i=process_input(mbuf, sizeof(mbuf), 1);
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89 | if ((i>0) && (!mbuf[0]))
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90 | {
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91 | usr=mbuf+1;
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92 | pwd=usr+strlen((char *)usr)+2;
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93 | }
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94 | else
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95 | memcpy(camdbug+1, mbuf, camdbug[0]=i);
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96 | }
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97 | for (rc=-1, account=cfg.account; (usr) && (account) && (rc<0); account=account->next)
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98 | if (streq((char *)usr, account->usr) && streq((char *)pwd, account->pwd))
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99 | rc = cs_auth_client(cl, account, NULL);
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100 | if (!rc)
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101 | camd33_request_emm();
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102 | else
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103 | {
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104 | if (rc<0) cs_auth_client(cl, 0, usr ? "invalid account" : "no user given");
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105 | cs_disconnect_client(cl);
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106 | }
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107 | }
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108 |
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109 | static void camd33_send_dcw(struct s_client *UNUSED(client), ECM_REQUEST *er)
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110 | {
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111 | uchar mbuf[1024];
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112 | mbuf[0]=2;
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113 | memcpy(mbuf+1, &er->msgid, 4); // get pin
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114 | memcpy(mbuf+5, er->cw, 16);
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115 | camd33_send(mbuf, 21);
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116 | if (!cfg.c33_passive)
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117 | camd33_request_emm();
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118 | }
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119 |
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120 | static void camd33_process_ecm(uchar *buf, int32_t l)
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121 | {
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122 | ECM_REQUEST *er;
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123 | if (!(er=get_ecmtask()))
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124 | return;
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125 | memcpy(&er->msgid, buf+3, 4); // save pin
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126 | er->ecmlen=l-7;
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127 | er->caid=b2i(2, buf+1);
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128 | memcpy(er->ecm , buf+7, er->ecmlen);
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129 | get_cw(cur_client(), er);
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130 | }
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131 |
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132 | static void camd33_process_emm(uchar *buf, int32_t l)
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133 | {
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134 | EMM_PACKET epg;
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135 | memset(&epg, 0, sizeof(epg));
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136 | epg.emmlen=l-7;
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137 | memcpy(epg.caid , buf+1, 2);
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138 | memcpy(epg.hexserial, buf+3, 4);
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139 | memcpy(epg.emm , buf+7, epg.emmlen);
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140 | do_emm(cur_client(), &epg);
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141 | }
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142 |
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143 | static void * camd33_server(struct s_client *UNUSED(client), uchar *mbuf, int32_t n)
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144 | {
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145 | switch(mbuf[0]) {
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146 | case 2:
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147 | camd33_process_ecm(mbuf, n);
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148 | break;
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149 | case 3:
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150 | camd33_process_emm(mbuf, n);
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151 | break;
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152 | default:
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153 | cs_debug_mask(D_CLIENT, "unknown command !");
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154 | }
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155 |
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156 | return NULL;
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157 | }
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158 |
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159 | static void camd33_server_init(struct s_client *UNUSED(client)) {
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160 | uchar camdbug[256];
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161 |
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162 | camd33_auth_client(camdbug);
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163 | }
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164 |
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165 | void module_camd33(struct s_module *ph)
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166 | {
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167 | cfg.c33_crypted = check_filled(cfg.c33_key, sizeof(cfg.c33_key));
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168 | ph->ptab.nports = 1;
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169 | ph->ptab.ports[0].s_port = cfg.c33_port;
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170 |
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171 | ph->desc="camd33";
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172 | ph->type=MOD_CONN_TCP;
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173 | ph->large_ecm_support = 1;
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174 | ph->listenertype = LIS_CAMD33TCP;
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175 | IP_ASSIGN(ph->s_ip, cfg.c33_srvip);
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176 | ph->s_handler=camd33_server;
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177 | ph->s_init=camd33_server_init;
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178 | ph->recv=camd33_recv;
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179 | ph->send_dcw=camd33_send_dcw;
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180 | ph->num=R_CAMD33;
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181 | }
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182 | #endif
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