[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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| 11 | int i, n;
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| 12 | if (!pfd) return(-1);
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| 13 | if ((n=recv(pfd, buf, l, 0))>0)
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| 14 | client[cs_idx].last=time((time_t *) 0);
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| 15 | return(n);
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| 16 | }
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| 17 |
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| 18 | static void radegast_auth_client(in_addr_t ip)
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| 19 | {
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| 20 | int ok;
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| 21 | struct s_auth *account;
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| 22 | struct s_ip *p_ip;
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| 23 | for (ok=0, p_ip=cfg->rad_allowed; (p_ip) && (!ok); p_ip=p_ip->next)
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| 24 | ok=((ip>=p_ip->ip[0]) && (ip<=p_ip->ip[1]));
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| 25 | if (!ok)
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| 26 | {
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| 27 | cs_auth_client((struct s_auth *)0, NULL);
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| 28 | cs_exit(0);
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| 29 | }
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| 30 | for (ok=0, account=cfg->account; (cfg->rad_usr[0]) && (account) && (!ok); account=account->next)
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| 31 | if (ok=(!strcmp(cfg->rad_usr, account->usr)))
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| 32 | if (cs_auth_client(account, NULL))
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| 33 | cs_exit(0);
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| 34 | if (!ok)
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| 35 | cs_auth_client((struct s_auth *)(-1), NULL);
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| 36 | }
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| 37 |
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| 38 | static int get_request(uchar *buf)
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| 39 | {
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| 40 | int n, rc=0;
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| 41 | if ((n=process_input(buf, 2, cfg->cmaxidle))==2)
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| 42 | {
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| 43 | if ((n=process_input(buf+2, buf[1], 0))>=0)
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| 44 | n+=2;
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| 45 | if (n-2==buf[1])
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| 46 | rc=n;
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| 47 | else
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| 48 | cs_log("WARNING: protocol error (garbage)");
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| 49 | }
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| 50 | if (n>0)
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| 51 | cs_ddump(buf, n, "received %d bytes from client", n);
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| 52 | return(rc);
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| 53 | }
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| 54 |
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| 55 | static void radegast_send_dcw(ECM_REQUEST *er)
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| 56 | {
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| 57 | mbuf[0]=0x02; // DCW
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| 58 | if (er->rc<4)
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| 59 | {
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| 60 | mbuf[1]=0x12; // len (overall)
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| 61 | mbuf[2]=0x05; // ACCESS
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| 62 | mbuf[3]=0x10; // len
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| 63 | memcpy(mbuf+4, er->cw, 16);
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| 64 | }
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| 65 | else
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| 66 | {
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| 67 | mbuf[1]=0x02; // len (overall)
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| 68 | mbuf[2]=0x04; // NO ACCESS
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| 69 | mbuf[3]=0x00; // len
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| 70 | }
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| 71 | radegast_send(mbuf);
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| 72 | }
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| 73 |
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| 74 | static void radegast_process_ecm(uchar *buf, int l)
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| 75 | {
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| 76 | int i, n, sl;
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| 77 | ECM_REQUEST *er;
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| 78 |
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| 79 | if (!(er=get_ecmtask()))
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| 80 | return;
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| 81 | for (i=0; i<l; i+=(sl+2))
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| 82 | {
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| 83 | sl=buf[i+1];
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| 84 | switch(buf[i])
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| 85 | {
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| 86 | case 2: // CAID (upper byte only, oldstyle)
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| 87 | er->caid=buf[i+2]<<8;
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| 88 | break;
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| 89 | case 10: // CAID
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| 90 | er->caid=b2i(2, buf+i+2);
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| 91 | break;
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| 92 | case 3: // ECM DATA
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| 93 | er->l=sl;
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| 94 | memcpy(er->ecm, buf+i+2, er->l);
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| 95 | break;
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| 96 | case 6: // PROVID (ASCII)
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| 97 | n=(sl>6) ? 3 : (sl>>1);
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[70] | 98 | er->prid=cs_atoi((char *) buf+i+2+sl-(n<<1), n, 0);
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[8] | 99 | break;
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| 100 | case 7: // KEYNR (ASCII), not needed
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| 101 | break;
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| 102 | case 8: // ECM PROCESS PID ?? don't know, not needed
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| 103 | break;
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| 104 | }
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| 105 | }
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| 106 | if (l!=i)
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| 107 | cs_log("WARNING: ECM-request corrupt");
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| 108 | else
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| 109 | get_cw(er);
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| 110 | }
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| 111 |
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| 112 | static void radegast_process_unknown(uchar *buf)
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| 113 | {
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| 114 | uchar answer[2]={0x81, 0x00};
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| 115 | radegast_send(answer);
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| 116 | cs_log("unknown request %02X, len=%d", buf[0], buf[1]);
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| 117 | }
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| 118 |
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| 119 | static void radegast_server()
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| 120 | {
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| 121 | int n;
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| 122 |
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| 123 | radegast_auth_client(client[cs_idx].ip);
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| 124 | while ((n=get_request(mbuf))>0)
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| 125 | {
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| 126 | switch(mbuf[0])
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| 127 | {
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| 128 | case 1:
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| 129 | radegast_process_ecm(mbuf+2, mbuf[1]);
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| 130 | break;
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| 131 | default:
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| 132 | radegast_process_unknown(mbuf);
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| 133 | }
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| 134 | }
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| 135 | cs_disconnect_client();
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| 136 | }
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| 137 |
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| 138 | void module_radegast(struct s_module *ph)
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| 139 | {
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| 140 | static PTAB ptab;
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| 141 | ptab.ports[0].s_port = cfg->rad_port;
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| 142 | ph->ptab = &ptab;
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| 143 | ph->ptab->nports = 1;
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| 144 |
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| 145 | strcpy(ph->desc, "radegast");
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| 146 | ph->type=MOD_CONN_TCP;
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| 147 | ph->multi=0;
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| 148 | ph->watchdog=1;
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| 149 | ph->s_ip=cfg->rad_srvip;
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| 150 | ph->s_handler=radegast_server;
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| 151 | ph->recv=radegast_recv;
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| 152 | ph->send_dcw=radegast_send_dcw;
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| 153 | }
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