[8] | 1 | #include "globals.h"
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| 2 |
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| 3 | static int radegast_send(uchar *buf)
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| 4 | {
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| 5 | int l=buf[1]+2;
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| 6 | return(send(pfd, buf, l, 0));
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| 7 | }
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| 8 |
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| 9 | static int radegast_recv(uchar *buf, int l)
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| 10 | {
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[470] | 11 | int n;
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[8] | 12 | if (!pfd) return(-1);
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[648] | 13 | if (is_server) { // server code
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| 14 | if ((n=recv(pfd, buf, l, 0))>0)
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| 15 | client[cs_idx].last=time((time_t *) 0);
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| 16 | } else { // client code
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| 17 | if ((n=recv(pfd, buf, l, 0))>0) {
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| 18 | cs_ddump(buf, n, "radegast: received %d bytes from %s", n, remote_txt());
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| 19 | client[cs_idx].last = time((time_t *) 0);
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| 20 |
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| 21 | if (buf[0] == 2) { // dcw received
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| 22 | if (buf[3] != 0x10) { // dcw ok
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| 23 | cs_log("radegast: no dcw");
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| 24 | n = -1;
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| 25 | }
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| 26 | }
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| 27 | }
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| 28 | }
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[8] | 29 | return(n);
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| 30 | }
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| 31 |
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[1125] | 32 | static int radegast_recv_chk(uchar *dcw, int *rc, uchar *buf)
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[648] | 33 | {
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| 34 | if ((buf[0] == 2) && (buf[1] == 0x12)) {
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| 35 | memcpy(dcw, buf+4, 16);
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| 36 | cs_debug("radegast: recv chk - %s", cs_hexdump(0, dcw, 16));
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| 37 | *rc = 1;
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| 38 | return(reader[ridx].msg_idx);
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| 39 | }
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| 40 |
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| 41 | return (-1);
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| 42 | }
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| 43 |
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[8] | 44 | static void radegast_auth_client(in_addr_t ip)
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| 45 | {
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| 46 | int ok;
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| 47 | struct s_auth *account;
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| 48 | struct s_ip *p_ip;
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[1090] | 49 |
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[8] | 50 | for (ok=0, p_ip=cfg->rad_allowed; (p_ip) && (!ok); p_ip=p_ip->next)
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| 51 | ok=((ip>=p_ip->ip[0]) && (ip<=p_ip->ip[1]));
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[1090] | 52 |
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[8] | 53 | if (!ok)
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| 54 | {
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| 55 | cs_auth_client((struct s_auth *)0, NULL);
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| 56 | cs_exit(0);
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| 57 | }
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[1090] | 58 |
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[8] | 59 | for (ok=0, account=cfg->account; (cfg->rad_usr[0]) && (account) && (!ok); account=account->next)
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[1090] | 60 | {
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| 61 | ok=(!strcmp(cfg->rad_usr, account->usr));
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| 62 | if (ok && cs_auth_client(account, NULL))
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| 63 | cs_exit(0);
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| 64 | }
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| 65 |
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[8] | 66 | if (!ok)
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| 67 | cs_auth_client((struct s_auth *)(-1), NULL);
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| 68 | }
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| 69 |
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| 70 | static int get_request(uchar *buf)
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| 71 | {
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| 72 | int n, rc=0;
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| 73 | if ((n=process_input(buf, 2, cfg->cmaxidle))==2)
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| 74 | {
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| 75 | if ((n=process_input(buf+2, buf[1], 0))>=0)
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| 76 | n+=2;
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| 77 | if (n-2==buf[1])
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| 78 | rc=n;
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| 79 | else
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| 80 | cs_log("WARNING: protocol error (garbage)");
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| 81 | }
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| 82 | if (n>0)
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| 83 | cs_ddump(buf, n, "received %d bytes from client", n);
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| 84 | return(rc);
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| 85 | }
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| 86 |
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| 87 | static void radegast_send_dcw(ECM_REQUEST *er)
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| 88 | {
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| 89 | mbuf[0]=0x02; // DCW
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| 90 | if (er->rc<4)
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| 91 | {
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| 92 | mbuf[1]=0x12; // len (overall)
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| 93 | mbuf[2]=0x05; // ACCESS
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| 94 | mbuf[3]=0x10; // len
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| 95 | memcpy(mbuf+4, er->cw, 16);
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| 96 | }
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| 97 | else
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| 98 | {
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| 99 | mbuf[1]=0x02; // len (overall)
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| 100 | mbuf[2]=0x04; // NO ACCESS
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| 101 | mbuf[3]=0x00; // len
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| 102 | }
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| 103 | radegast_send(mbuf);
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| 104 | }
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| 105 |
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| 106 | static void radegast_process_ecm(uchar *buf, int l)
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| 107 | {
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| 108 | int i, n, sl;
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| 109 | ECM_REQUEST *er;
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| 110 |
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| 111 | if (!(er=get_ecmtask()))
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| 112 | return;
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| 113 | for (i=0; i<l; i+=(sl+2))
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| 114 | {
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| 115 | sl=buf[i+1];
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| 116 | switch(buf[i])
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| 117 | {
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| 118 | case 2: // CAID (upper byte only, oldstyle)
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| 119 | er->caid=buf[i+2]<<8;
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| 120 | break;
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| 121 | case 10: // CAID
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| 122 | er->caid=b2i(2, buf+i+2);
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| 123 | break;
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| 124 | case 3: // ECM DATA
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| 125 | er->l=sl;
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| 126 | memcpy(er->ecm, buf+i+2, er->l);
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| 127 | break;
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| 128 | case 6: // PROVID (ASCII)
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| 129 | n=(sl>6) ? 3 : (sl>>1);
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[70] | 130 | er->prid=cs_atoi((char *) buf+i+2+sl-(n<<1), n, 0);
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[8] | 131 | break;
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| 132 | case 7: // KEYNR (ASCII), not needed
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| 133 | break;
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| 134 | case 8: // ECM PROCESS PID ?? don't know, not needed
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| 135 | break;
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| 136 | }
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| 137 | }
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| 138 | if (l!=i)
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| 139 | cs_log("WARNING: ECM-request corrupt");
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| 140 | else
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| 141 | get_cw(er);
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| 142 | }
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| 143 |
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| 144 | static void radegast_process_unknown(uchar *buf)
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| 145 | {
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| 146 | uchar answer[2]={0x81, 0x00};
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| 147 | radegast_send(answer);
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| 148 | cs_log("unknown request %02X, len=%d", buf[0], buf[1]);
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| 149 | }
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| 150 |
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| 151 | static void radegast_server()
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| 152 | {
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| 153 | int n;
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| 154 |
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| 155 | radegast_auth_client(client[cs_idx].ip);
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| 156 | while ((n=get_request(mbuf))>0)
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| 157 | {
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| 158 | switch(mbuf[0])
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| 159 | {
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| 160 | case 1:
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| 161 | radegast_process_ecm(mbuf+2, mbuf[1]);
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| 162 | break;
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| 163 | default:
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| 164 | radegast_process_unknown(mbuf);
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| 165 | }
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| 166 | }
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| 167 | cs_disconnect_client();
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| 168 | }
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| 169 |
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[1125] | 170 | static int radegast_send_ecm(ECM_REQUEST *er)
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[648] | 171 | {
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| 172 | int n;
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| 173 | uchar provid_buf[8];
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| 174 | uchar header[22] = "\x02\x01\x00\x06\x08\x30\x30\x30\x30\x30\x30\x30\x30\x07\x04\x30\x30\x30\x38\x08\x01\x02";
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| 175 | uchar *ecmbuf = malloc(er->l + 30);
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[1672] | 176 | memset(ecmbuf, 0, er->l + 30);
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[648] | 177 |
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| 178 | ecmbuf[0] = 1;
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| 179 | ecmbuf[1] = er->l + 30 - 2;
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| 180 | memcpy(ecmbuf + 2, header, sizeof(header));
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| 181 | for(n = 0; n < 4; n++) {
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| 182 | sprintf((char*)provid_buf+(n*2), "%02X", ((uchar *)(&er->prid))[4 - 1 - n]);
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| 183 | }
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| 184 | ecmbuf[7] = provid_buf[0];
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| 185 | ecmbuf[8] = provid_buf[1];
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| 186 | ecmbuf[9] = provid_buf[2];
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| 187 | ecmbuf[10] = provid_buf[3];
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| 188 | ecmbuf[11] = provid_buf[4];
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| 189 | ecmbuf[12] = provid_buf[5];
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| 190 | ecmbuf[13] = provid_buf[6];
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| 191 | ecmbuf[14] = provid_buf[7];
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| 192 | ecmbuf[2 + sizeof(header)] = 0xa;
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| 193 | ecmbuf[3 + sizeof(header)] = 2;
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| 194 | ecmbuf[4 + sizeof(header)] = er->caid >> 8;
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| 195 | ecmbuf[5 + sizeof(header)] = er->caid & 0xff;
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| 196 | ecmbuf[6 + sizeof(header)] = 3;
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| 197 | ecmbuf[7 + sizeof(header)] = er->l;
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| 198 | memcpy(ecmbuf + 8 + sizeof(header), er->ecm, er->l);
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| 199 | ecmbuf[4] = er->caid >> 8;
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| 200 |
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| 201 | reader[ridx].msg_idx = er->idx;
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| 202 | n = send(pfd, ecmbuf, er->l + 30, 0);
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| 203 |
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| 204 | cs_log("radegast: sending ecm");
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| 205 | cs_ddump(ecmbuf, er->l + 30, "ecm:");
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| 206 |
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| 207 | free(ecmbuf);
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| 208 |
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| 209 | return 0;
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| 210 | }
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| 211 |
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| 212 | int radegast_cli_init(void)
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| 213 | {
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| 214 | static struct sockaddr_in loc_sa;
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| 215 | struct protoent *ptrp;
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| 216 | int p_proto, handle;
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| 217 |
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| 218 | pfd=0;
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| 219 | if (reader[ridx].r_port<=0)
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| 220 | {
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| 221 | cs_log("radegast: invalid port %d for server %s", reader[ridx].r_port, reader[ridx].device);
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| 222 | return(1);
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| 223 | }
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| 224 | if( (ptrp=getprotobyname("tcp")) )
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| 225 | p_proto=ptrp->p_proto;
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| 226 | else
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| 227 | p_proto=6;
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| 228 |
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| 229 | client[cs_idx].ip=0;
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| 230 | memset((char *)&loc_sa,0,sizeof(loc_sa));
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| 231 | loc_sa.sin_family = AF_INET;
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| 232 | #ifdef LALL
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| 233 | if (cfg->serverip[0])
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| 234 | loc_sa.sin_addr.s_addr = inet_addr(cfg->serverip);
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| 235 | else
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| 236 | #endif
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| 237 | loc_sa.sin_addr.s_addr = INADDR_ANY;
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| 238 | loc_sa.sin_port = htons(reader[ridx].l_port);
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| 239 |
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| 240 | if ((client[cs_idx].udp_fd=socket(PF_INET, SOCK_STREAM, p_proto))<0)
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| 241 | {
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| 242 | cs_log("cccam: Socket creation failed (errno=%d)", errno);
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| 243 | cs_exit(1);
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| 244 | }
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| 245 |
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| 246 | #ifdef SO_PRIORITY
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| 247 | if (cfg->netprio)
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| 248 | setsockopt(client[cs_idx].udp_fd, SOL_SOCKET, SO_PRIORITY,
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| 249 | (void *)&cfg->netprio, sizeof(ulong));
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| 250 | #endif
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| 251 | if (!reader[ridx].tcp_ito) {
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| 252 | ulong keep_alive = reader[ridx].tcp_ito?1:0;
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| 253 | setsockopt(client[cs_idx].udp_fd, SOL_SOCKET, SO_KEEPALIVE,
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| 254 | (void *)&keep_alive, sizeof(ulong));
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| 255 | }
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| 256 |
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| 257 | memset((char *)&client[cs_idx].udp_sa,0,sizeof(client[cs_idx].udp_sa));
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| 258 | client[cs_idx].udp_sa.sin_family = AF_INET;
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| 259 | client[cs_idx].udp_sa.sin_port = htons((u_short)reader[ridx].r_port);
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| 260 |
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| 261 | struct hostent *server;
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| 262 | server = gethostbyname(reader[ridx].device);
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[1660] | 263 | memmove((char *)&client[cs_idx].udp_sa.sin_addr.s_addr, (char *)server->h_addr, server->h_length);
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[648] | 264 |
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| 265 | cs_log("radegast: proxy %s:%d (fd=%d)",
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| 266 | reader[ridx].device, reader[ridx].r_port, client[cs_idx].udp_fd);
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| 267 |
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[1125] | 268 | handle = network_tcp_connection_open();
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[648] | 269 | if(handle < 0) return -1;
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| 270 |
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| 271 | reader[ridx].tcp_connected = 1;
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| 272 | reader[ridx].last_g = reader[ridx].last_s = time((time_t *)0);
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| 273 |
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| 274 | cs_debug("radegast: last_s=%d, last_g=%d", reader[ridx].last_s, reader[ridx].last_g);
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| 275 |
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| 276 | pfd=client[cs_idx].udp_fd;
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| 277 |
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| 278 | return(0);
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| 279 | }
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| 280 |
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[8] | 281 | void module_radegast(struct s_module *ph)
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| 282 | {
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| 283 | static PTAB ptab;
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| 284 | ptab.ports[0].s_port = cfg->rad_port;
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| 285 | ph->ptab = &ptab;
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| 286 | ph->ptab->nports = 1;
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| 287 |
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| 288 | strcpy(ph->desc, "radegast");
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| 289 | ph->type=MOD_CONN_TCP;
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| 290 | ph->multi=0;
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| 291 | ph->watchdog=1;
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| 292 | ph->s_ip=cfg->rad_srvip;
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| 293 | ph->s_handler=radegast_server;
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| 294 | ph->recv=radegast_recv;
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| 295 | ph->send_dcw=radegast_send_dcw;
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[648] | 296 | ph->c_multi=0;
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| 297 | ph->c_init=radegast_cli_init;
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| 298 | ph->c_recv_chk=radegast_recv_chk;
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| 299 | ph->c_send_ecm=radegast_send_ecm;
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[8] | 300 | }
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