408 lines
9.7 KiB
C
408 lines
9.7 KiB
C
#define MODULE_LOG_PREFIX "radegast"
|
|
|
|
#include "globals.h"
|
|
#ifdef MODULE_RADEGAST
|
|
#include "oscam-client.h"
|
|
#include "oscam-ecm.h"
|
|
#include "oscam-net.h"
|
|
#include "oscam-string.h"
|
|
#include "oscam-reader.h"
|
|
#ifdef MODULE_STREAMRELAY
|
|
#include "module-streamrelay.h"
|
|
#include "oscam-chk.h"
|
|
#endif
|
|
|
|
static int32_t radegast_connect(void);
|
|
|
|
static int32_t radegast_send(struct s_client *client, uint8_t *buf)
|
|
{
|
|
int32_t l = buf[1] + 2;
|
|
return (send(client->pfd, buf, l, 0));
|
|
}
|
|
|
|
static int32_t radegast_recv(struct s_client *client, uint8_t *buf, int32_t l)
|
|
{
|
|
int32_t n;
|
|
if(!client->pfd) { return (-1); }
|
|
if(client->typ == 'c') // server code
|
|
{
|
|
if((n = cs_recv(client->pfd, buf, l, 0)) > 0)
|
|
{ client->last = time((time_t *) 0); }
|
|
}
|
|
else // client code
|
|
{
|
|
if((n = cs_recv(client->pfd, buf, l, 0)) > 0)
|
|
{
|
|
cs_log_dump_dbg(D_CLIENT, buf, n, "radegast: received %d bytes from %s", n, remote_txt());
|
|
client->last = time((time_t *) 0);
|
|
if((buf[0] == 0x02) && (buf[1] == 0x12) && (buf[2] == 0x05) && (buf[3] == 0x10)) { return (n); } // dcw received
|
|
else if((buf[0] == 0x02) && (buf[1] == 0x02) && (buf[2] == 0x04) && (buf[3] == 0x00)) { return (n); } // dcw no found
|
|
else if((buf[0] == 0x81) && (buf[1] == 0x00)) { return (n); } // cmd unknown
|
|
else { n = -1; }// no cmd radegast disconnect
|
|
}
|
|
}
|
|
return (n);
|
|
}
|
|
|
|
static int32_t radegast_recv_chk(struct s_client *client, uint8_t *dcw, int32_t *rc, uint8_t *buf, int32_t UNUSED(n))
|
|
{
|
|
if((buf[0] == 2) && (buf[1] == 0x12))
|
|
{
|
|
char tmp_dbg[33];
|
|
memcpy(dcw, buf + 4, 16);
|
|
cs_log_dbg(D_CLIENT, "radegast: recv chk - %s", cs_hexdump(0, dcw, 16, tmp_dbg, sizeof(tmp_dbg)));
|
|
*rc = 1;
|
|
return (client->reader->msg_idx);
|
|
}
|
|
|
|
return (-1);
|
|
}
|
|
|
|
static void radegast_auth_client(IN_ADDR_T ip)
|
|
{
|
|
int32_t ok;
|
|
struct s_auth *account;
|
|
struct s_client *cl = cur_client();
|
|
|
|
ok = check_ip(cfg.rad_allowed, ip);
|
|
|
|
if(!ok)
|
|
{
|
|
cs_log("radegast: IP not allowed");
|
|
cs_auth_client(cl, (struct s_auth *)0, NULL);
|
|
cs_disconnect_client(cl);
|
|
}
|
|
|
|
for(ok = 0, account = cfg.account; cfg.rad_usr && account && !ok; account = account->next)
|
|
{
|
|
ok = streq(cfg.rad_usr, account->usr);
|
|
if(ok && cs_auth_client(cl, account, NULL))
|
|
{ cs_disconnect_client(cl); }
|
|
}
|
|
|
|
if(!ok)
|
|
{ cs_auth_client(cl, ok ? account : (struct s_auth *)(-1), "radegast"); }
|
|
}
|
|
|
|
static void radegast_send_dcw(struct s_client *client, ECM_REQUEST *er)
|
|
{
|
|
uint8_t mbuf[1024];
|
|
mbuf[0] = 0x02; // DCW
|
|
if(er->rc < E_NOTFOUND)
|
|
{
|
|
#ifdef MODULE_STREAMRELAY
|
|
if((cfg.stream_relay_ctab.ctnum == 0 || chk_ctab_ex(er->caid, &cfg.stream_relay_ctab)) && cfg.stream_relay_enabled)
|
|
{
|
|
stream_write_cw(er);
|
|
}
|
|
#endif
|
|
mbuf[1] = 0x12; // len (overall)
|
|
mbuf[2] = 0x05; // ACCESS
|
|
mbuf[3] = 0x10; // len
|
|
memcpy(mbuf + 4, er->cw, 16);
|
|
}
|
|
else
|
|
{
|
|
mbuf[1] = 0x02; // len (overall)
|
|
mbuf[2] = 0x04; // NO ACCESS
|
|
mbuf[3] = 0x00; // len
|
|
}
|
|
radegast_send(client, mbuf);
|
|
}
|
|
|
|
static void radegast_process_ecm(uint8_t *buf, int32_t l)
|
|
{
|
|
int32_t i, n, sl;
|
|
ECM_REQUEST *er;
|
|
struct s_client *cl = cur_client();
|
|
|
|
if(!(er = get_ecmtask()))
|
|
{ return; }
|
|
|
|
for(i = 0; i+1 < l; i += (sl + 2))
|
|
{
|
|
sl = buf[i + 1];
|
|
|
|
switch(buf[i])
|
|
{
|
|
case 2: // CAID (upper byte only, oldstyle)
|
|
if(i+2 >= l)
|
|
{ break; }
|
|
er->caid = buf[i + 2] << 8;
|
|
break;
|
|
|
|
case 10: // CAID
|
|
if(i+3 >= l)
|
|
{ break; }
|
|
er->caid = b2i(2, buf + i + 2);
|
|
break;
|
|
|
|
case 3: // ECM DATA
|
|
if(i+4 >= l)
|
|
{ break; }
|
|
er->ecmlen = (((buf[i + 1 + 2] & 0x0F) << 8) | buf[i + 2 + 2]) + 3;
|
|
if(er->ecmlen < 3 || er->ecmlen > MAX_ECM_SIZE || i+2+er->ecmlen > l)
|
|
{ break; }
|
|
memcpy(er->ecm, buf + i + 2, er->ecmlen);
|
|
break;
|
|
|
|
case 6: // PROVID (ASCII)
|
|
if(i+2+sl > l)
|
|
{ break; }
|
|
n = (sl > 6) ? 3 : (sl >> 1);
|
|
er->prid = cs_atoi((char *) buf + i + 2 + sl - (n << 1), n, 0);
|
|
break;
|
|
|
|
case 7: // KEYNR (ASCII), not needed
|
|
break;
|
|
|
|
case 8: // ECM PROCESS PID ?? don't know, not needed
|
|
break;
|
|
|
|
case 9: // Adding srvid because ECM contains 0000
|
|
if(i+2 >= l)
|
|
{ break; }
|
|
er->srvid = (buf[i + 4] << 8 ) | (buf[i + 2]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(l != i)
|
|
{ cs_log("WARNING: ECM-request corrupt"); }
|
|
else
|
|
{ get_cw(cl, er); }
|
|
}
|
|
|
|
static void radegast_process_unknown(uint8_t *buf)
|
|
{
|
|
uint8_t answer[2] = {0x81, 0x00};
|
|
radegast_send(cur_client(), answer);
|
|
cs_log("unknown request %02X, len=%d", buf[0], buf[1]);
|
|
}
|
|
|
|
static void *radegast_server(struct s_client *client, uint8_t *mbuf, int32_t n)
|
|
{
|
|
if(n < 3)
|
|
{ return NULL; }
|
|
|
|
if(!client->init_done)
|
|
{
|
|
radegast_auth_client(cur_client()->ip);
|
|
client->init_done = 1;
|
|
}
|
|
|
|
switch(mbuf[0])
|
|
{
|
|
case 1:
|
|
radegast_process_ecm(mbuf + 2, mbuf[1]);
|
|
break;
|
|
|
|
default:
|
|
radegast_process_unknown(mbuf);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int32_t radegast_send_ecm(struct s_client *client, ECM_REQUEST *er)
|
|
{
|
|
uint8_t provid_buf[8];
|
|
uint8_t header[22]
|
|
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L //gcc-15+
|
|
__attribute__((nonstring))
|
|
#endif
|
|
= "\x02\x01\x00\x06\x08\x30\x30\x30\x30\x30\x30\x30\x30\x07\x04\x30\x30\x30\x38\x08\x01\x02";
|
|
uint8_t *ecmbuf;
|
|
|
|
uint8_t *SubECMp;
|
|
uint8_t *via_ecm_mod;
|
|
uint32_t n, k, Len, pos = 0;
|
|
|
|
if(!radegast_connect())
|
|
{ return (-1); }
|
|
|
|
if(!cs_malloc(&ecmbuf, er->ecmlen + 30))
|
|
{ return -1; }
|
|
|
|
// Quickfix to suppress SubECMs with CWsSwap set to 01
|
|
// Applied only on Viaccess (CAID: 0x0500)
|
|
// this reduce the size of the ECM from long to short
|
|
// 40 07 03 0B 00 08 07 01 00 ... -> to keep
|
|
// 40 07 03 0B 00 08 07 01 01 ... -> to delete
|
|
// Thanks to luffy for the tip and the code.
|
|
|
|
if(er->caid == 0x500)
|
|
{
|
|
cs_log_dump_dbg(D_ATR, er->ecm, er->ecmlen, "%s: ecm dump BEFORE suppressing SubECMs with CWsSwap set to 01", __func__);
|
|
Len = er->ecmlen;
|
|
if(cs_malloc (&via_ecm_mod, Len+4))
|
|
{
|
|
if(er->ecm[4] == 0x80)
|
|
{
|
|
memcpy(via_ecm_mod, er->ecm, 4);
|
|
via_ecm_mod[1] = 0x70;
|
|
via_ecm_mod[2] = 0x01;
|
|
pos = 0x04;
|
|
k = 4;
|
|
while(k < Len)
|
|
{
|
|
SubECMp = (uint8_t *)&er->ecm[k];
|
|
if(((pos + SubECMp[1] + 2) > 0xE0) || (pos + SubECMp[1] + 2) > Len)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (SubECMp[2] == 0xD2)
|
|
{
|
|
if(SubECMp[0x0E] == 0x00)
|
|
{
|
|
memcpy(via_ecm_mod+pos, SubECMp, SubECMp[1] + 2);
|
|
via_ecm_mod[2] += SubECMp[1] + 2;
|
|
pos += SubECMp[1] + 2;
|
|
}
|
|
}
|
|
else if ((SubECMp[2] == 0x90 || SubECMp[2] == 0x40) && SubECMp[3] == 0x07)
|
|
{
|
|
if(SubECMp[0x0A] == 0x00 || SubECMp[0x0A] == 0xFF)
|
|
{
|
|
memcpy(via_ecm_mod + pos, SubECMp, SubECMp[1] + 2);
|
|
via_ecm_mod[2] += SubECMp[1] + 2;
|
|
pos += SubECMp[1] + 2;
|
|
}
|
|
}
|
|
k += SubECMp[1] + 2;
|
|
}
|
|
Len = via_ecm_mod[2] + 3;
|
|
er->ecmlen = Len;
|
|
memcpy(er->ecm, via_ecm_mod, Len);
|
|
cs_log_dump_dbg(D_ATR, er->ecm, er->ecmlen, "%s: ecm dump AFTER suppressing SubECMs with CWsSwap set to 01", __func__);
|
|
}
|
|
NULLFREE(via_ecm_mod);
|
|
}
|
|
|
|
}
|
|
|
|
ecmbuf[0] = 1;
|
|
ecmbuf[1] = (er->ecmlen + 30 - 2) & 0xff;
|
|
memcpy(ecmbuf + 2, header, sizeof(header));
|
|
for(n = 0; n < 4; n++)
|
|
{
|
|
snprintf((char *)provid_buf + (n * 2), sizeof(provid_buf) - (n * 2), "%02X", ((uint8_t *)(&er->prid))[4 - 1 - n]);
|
|
}
|
|
ecmbuf[7] = provid_buf[0];
|
|
ecmbuf[8] = provid_buf[1];
|
|
ecmbuf[9] = provid_buf[2];
|
|
ecmbuf[10] = provid_buf[3];
|
|
ecmbuf[11] = provid_buf[4];
|
|
ecmbuf[12] = provid_buf[5];
|
|
ecmbuf[13] = provid_buf[6];
|
|
ecmbuf[14] = provid_buf[7];
|
|
ecmbuf[2 + sizeof(header)] = 0xa;
|
|
ecmbuf[3 + sizeof(header)] = 2;
|
|
ecmbuf[4 + sizeof(header)] = er->caid >> 8;
|
|
ecmbuf[5 + sizeof(header)] = er->caid & 0xff;
|
|
ecmbuf[6 + sizeof(header)] = 3;
|
|
ecmbuf[7 + sizeof(header)] = er->ecmlen & 0xff;
|
|
memcpy(ecmbuf + 8 + sizeof(header), er->ecm, er->ecmlen);
|
|
ecmbuf[4] = er->caid >> 8;
|
|
|
|
client->reader->msg_idx = er->idx;
|
|
n = send(client->pfd, ecmbuf, er->ecmlen + 30, 0);
|
|
|
|
cs_log_dbg(D_TRACE, "radegast: sending ecm");
|
|
cs_log_dump_dbg(D_CLIENT, ecmbuf, er->ecmlen + 30, "ecm:");
|
|
NULLFREE(ecmbuf);
|
|
return ((n < 1) ? (-1) : 0);
|
|
}
|
|
|
|
int32_t radegast_cli_init(struct s_client *cl)
|
|
{
|
|
int32_t handle;
|
|
|
|
handle = network_tcp_connection_open(cl->reader);
|
|
if(handle < 0) { return -1; }
|
|
|
|
cs_log("radegast: proxy %s:%d (fd=%d)", cl->reader->device, cl->reader->r_port, cl->udp_fd);
|
|
|
|
cl->reader->tcp_connected = 2;
|
|
cl->reader->card_status = CARD_INSERTED;
|
|
cl->reader->last_g = cl->reader->last_s = time((time_t *)0);
|
|
|
|
cs_log_dbg(D_CLIENT, "radegast: last_s=%" PRId64 ", last_g=%" PRId64, (int64_t)cl->reader->last_s, (int64_t)cl->reader->last_g);
|
|
|
|
cl->pfd = cl->udp_fd;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void radegast_server_init(struct s_client *cl)
|
|
{
|
|
if(!cl->init_done)
|
|
{
|
|
if(IP_ISSET(cl->ip))
|
|
{ cs_log("radegast: new connection from %s", cs_inet_ntoa(cl->ip)); }
|
|
radegast_auth_client(cur_client()->ip);
|
|
cl->init_done = 1;
|
|
}
|
|
return;
|
|
}
|
|
|
|
static int32_t radegast_connect(void)
|
|
{
|
|
struct s_client *cl = cur_client();
|
|
|
|
if(cl->reader->tcp_connected < 2 && radegast_cli_init(cl) < 0)
|
|
{ return 0; }
|
|
|
|
if(!cl->udp_fd)
|
|
{ return 0; }
|
|
|
|
return 1;
|
|
}
|
|
|
|
void radegast_idle(void)
|
|
{
|
|
struct s_client *client = cur_client();
|
|
struct s_reader *rdr = client->reader;
|
|
time_t now = time(NULL);
|
|
if(!rdr) { return; }
|
|
|
|
if(rdr->tcp_ito > 0)
|
|
{
|
|
int32_t time_diff;
|
|
time_diff = llabs(now - rdr->last_s);
|
|
if(time_diff > (rdr->tcp_ito))
|
|
{
|
|
network_tcp_connection_close(rdr, "inactivity");
|
|
return;
|
|
}
|
|
}
|
|
else if(rdr->tcp_ito == -1)
|
|
{
|
|
radegast_connect();
|
|
return;
|
|
}
|
|
}
|
|
|
|
void module_radegast(struct s_module *ph)
|
|
{
|
|
ph->ptab.nports = 1;
|
|
ph->ptab.ports[0].s_port = cfg.rad_port;
|
|
|
|
ph->desc = "radegast";
|
|
ph->type = MOD_CONN_TCP;
|
|
ph->large_ecm_support = 1;
|
|
ph->listenertype = LIS_RADEGAST;
|
|
IP_ASSIGN(ph->s_ip, cfg.rad_srvip);
|
|
ph->s_handler = radegast_server;
|
|
ph->s_init = radegast_server_init;
|
|
ph->c_idle = radegast_idle;
|
|
ph->recv = radegast_recv;
|
|
ph->send_dcw = radegast_send_dcw;
|
|
ph->c_init = radegast_cli_init;
|
|
ph->c_recv_chk = radegast_recv_chk;
|
|
ph->c_send_ecm = radegast_send_ecm;
|
|
ph->num = R_RADEGAST;
|
|
}
|
|
#endif
|