Exemple #1
0
static void camd35_request_emm(ECM_REQUEST *er)
{
	int32_t i;
	time_t now;
	uchar mbuf[1024];
	struct s_client *cl = cur_client();
	struct s_reader *aureader = NULL, *rdr = NULL;

	if(er->selected_reader && !er->selected_reader->audisabled && ll_contains(cl->aureader_list, er->selected_reader))
		{ aureader = er->selected_reader; }

	if(!aureader && cl->aureader_list)
	{
		LL_ITER itr = ll_iter_create(cl->aureader_list);
		while((rdr = ll_iter_next(&itr)))
		{
			if(emm_reader_match(rdr, er->caid, er->prid))
			{
				aureader = rdr;
				break;
			}
		}
	}

	if(!aureader)
		{ return; }  // TODO

	uint16_t au_caid = aureader->caid;

	if(!au_caid && caid_is_bulcrypt(er->caid)) // Bulcrypt has 2 caids and aureader->caid can't be used. Use ECM_REQUEST caid for AU.
		{ au_caid = er->caid; }

	time(&now);
	if(!memcmp(cl->lastserial, aureader->hexserial, 8))
		if(llabs(now - cl->last) < 180) { return; }

	memcpy(cl->lastserial, aureader->hexserial, 8);
	cl->last = now;

	if(au_caid)
	{
		cl->disable_counter = 0;
		cs_log("%s emm-request sent (reader=%s, caid=%04X, auprovid=%06X)",
			   username(cur_client()), aureader->label, au_caid,
			   aureader->auprovid ? aureader->auprovid : b2i(4, aureader->prid[0]));
	}
	else if(cl->disable_counter > 2)
		{ return; }
	else
		{ cl->disable_counter++; }

	memset(mbuf, 0, sizeof(mbuf));
	mbuf[2] = mbuf[3] = 0xff;           // must not be zero
	i2b_buf(2, er->srvid, mbuf + 8);

	//override request provid with auprovid if set in CMD05
	if(aureader->auprovid)
	{
		if(aureader->auprovid != er->prid)
			{ i2b_buf(4, aureader->auprovid, mbuf + 12); }
		else
			{ i2b_buf(4, er->prid, mbuf + 12); }
	}
	else
	{
		i2b_buf(4, er->prid, mbuf + 12);
	}

	i2b_buf(2, er->pid, mbuf + 16);
	mbuf[0] = 5;
	mbuf[1] = 111;
	if(au_caid)
	{
		mbuf[39] = 1;                           // no. caids
		mbuf[20] = au_caid >> 8;        // caid's (max 8)
		mbuf[21] = au_caid & 0xff;
		memcpy(mbuf + 40, aureader->hexserial, 6);  // serial now 6 bytes
		mbuf[47] = aureader->nprov;
		for(i = 0; i < aureader->nprov; i++)
		{
			if((au_caid >= 0x1700 && au_caid <= 0x1799)  ||  // Betacrypt
					(au_caid >= 0x0600 && au_caid <= 0x0699))    // Irdeto (don't know if this is correct, cause I don't own a IRDETO-Card)
			{
				mbuf[48 + (i * 5)] = aureader->prid[i][0];
				memcpy(&mbuf[50 + (i * 5)], &aureader->prid[i][1], 3);
			}
			else
			{
				mbuf[48 + (i * 5)] = aureader->prid[i][2];
				mbuf[49 + (i * 5)] = aureader->prid[i][3];
				memcpy(&mbuf[50 + (i * 5)], &aureader->sa[i][0], 4); // for conax we need at least 4 Bytes
			}
		}
		//we think client/server protocols should deliver all information, and only readers should discard EMM
		mbuf[128] = (aureader->blockemm & EMM_GLOBAL && !(aureader->saveemm & EMM_GLOBAL)) ? 0 : 1;
		mbuf[129] = (aureader->blockemm & EMM_SHARED && !(aureader->saveemm & EMM_SHARED)) ? 0 : 1;
		mbuf[130] = (aureader->blockemm & EMM_UNIQUE && !(aureader->saveemm & EMM_UNIQUE)) ? 0 : 1;
		mbuf[127] = (aureader->blockemm & EMM_UNKNOWN && !(aureader->saveemm & EMM_UNKNOWN)) ? 0 : 1;
	}
	else        // disable emm
		{ mbuf[20] = mbuf[39] = mbuf[40] = mbuf[47] = mbuf[49] = 1; }
Exemple #2
0
void do_emm(struct s_client * client, EMM_PACKET *ep)
{
	char *typtext[]={"unknown", "unique", "shared", "global"};
	char tmp[17];
	int32_t emmnok=0;

	struct s_reader *aureader = NULL;
	cs_ddump_mask(D_EMM, ep->emm, ep->emmlen, "emm:");

	int8_t cl_dvbapi = 0, assemble = 0;
#ifdef HAVE_DVBAPI
	cl_dvbapi = streq(cfg.dvbapi_usr, client->account->usr);
#endif
	if (client->account->emm_reassembly > 1 || (client->account->emm_reassembly && cl_dvbapi))
		assemble = 1;

	LL_ITER itr = ll_iter_create(client->aureader_list);
	while ((aureader = ll_iter_next(&itr))) {
		if (!aureader->enable)
			continue;

		uint16_t caid = b2i(2, ep->caid);
		uint32_t provid = b2i(4, ep->provid);

		if (aureader->audisabled) {
			rdr_debug_mask(aureader, D_EMM, "AU is disabled");
			/* we have to write the log for blocked EMM here because
			 this EMM never reach the reader module where the rest
			 of EMM log is done. */
			if (aureader->logemm & 0x10)  {
				rdr_log(aureader, "%s emmtype=%s, len=%d, idx=0, cnt=1: audisabled (0 ms)",
						client->account->usr,
						typtext[ep->type],
						ep->emm[2]);
			}
			continue;
		}

		if (!(aureader->grp & client->grp)) {
			rdr_debug_mask(aureader, D_EMM, "skip emm, group mismatch");
			continue;
		}

		//TODO: provider possibly not set yet, this is done in get_emm_type()
		if (!emm_reader_match(aureader, caid, provid))
			continue;

		struct s_cardsystem *cs = NULL;

		if (is_cascading_reader(aureader)) { // network reader (R_CAMD35 R_NEWCAMD R_CS378X R_CCCAM)
			if (!aureader->ph.c_send_emm) // no emm support
				continue;

			cs = get_cardsystem_by_caid(caid);
			if (!cs) {
				rdr_debug_mask(aureader, D_EMM, "unable to find cardsystem for caid %04X", caid);
				continue;
			}
		} else { // local reader
			if (aureader->csystem.active)
				cs=&aureader->csystem;
		}

		if (cs && cs->get_emm_type) {
			if (!cs->get_emm_type(ep, aureader)) {
				rdr_debug_mask(aureader, D_EMM, "emm skipped, get_emm_type() returns error");
				emmnok++;
				continue;
			}
		}

		if (cs && cs->get_emm_filter) {
			if (!do_simple_emm_filter(aureader, cs, ep)) {
				rdr_debug_mask(aureader, D_EMM, "emm skipped, emm_filter() returns invalid");
				emmnok++;
				continue;
			}
		}

		if (cs && cs->do_emm_reassembly) {
			if (assemble) {
				if (!cs->do_emm_reassembly(client, ep))
					return;
			} else {
				rdr_debug_mask(aureader, D_EMM, "processing raw emm");
			}
		}

		rdr_debug_mask_sensitive(aureader, D_EMM, "emmtype %s. Reader serial {%s}.", typtext[ep->type],
			cs_hexdump(0, aureader->hexserial, 8, tmp, sizeof(tmp)));
		rdr_debug_mask_sensitive(aureader, D_EMM, "emm UA/SA: {%s}.",
			cs_hexdump(0, ep->hexserial, 8, tmp, sizeof(tmp)));

		client->last = time(NULL);
		saveemm(aureader, ep);

		int32_t is_blocked = 0;
		switch (ep->type) {
			case UNKNOWN: is_blocked = (aureader->blockemm & EMM_UNKNOWN) == EMM_UNKNOWN; break;
			case UNIQUE : is_blocked = (aureader->blockemm & EMM_UNIQUE ) == EMM_UNIQUE;  break;
			case SHARED : is_blocked = (aureader->blockemm & EMM_SHARED ) == EMM_SHARED;  break;
			case GLOBAL : is_blocked = (aureader->blockemm & EMM_GLOBAL ) == EMM_GLOBAL;  break;
		}

		// if not already blocked we check for block by len
		if (!is_blocked) is_blocked = cs_emmlen_is_blocked( aureader, ep->emm[2] ) ;

		if (is_blocked != 0) {
#ifdef WEBIF
			aureader->emmblocked[ep->type]++;
			is_blocked = aureader->emmblocked[ep->type];
#endif
			/* we have to write the log for blocked EMM here because
			 this EMM never reach the reader module where the rest
			 of EMM log is done. */
			if (aureader->logemm & 0x08)  {
				rdr_log(aureader, "%s emmtype=%s, len=%d, idx=0, cnt=%d: blocked (0 ms)",
						client->account->usr,
						typtext[ep->type],
						ep->emm[2],
						is_blocked);
			}
			continue;
		}

		client->lastemm = time((time_t*)0);

		client->emmok++;
		if (client->account)
			client->account->emmok++;
		first_client->emmok++;

		//Check emmcache early:
		int32_t i;
		unsigned char md5tmp[CS_EMMSTORESIZE];
		struct s_client *au_cl = aureader->client;

		MD5(ep->emm, ep->emm[2], md5tmp);
		ep->client = client;

		for (i=0; i<CS_EMMCACHESIZE; i++) {
			if (!memcmp(au_cl->emmcache[i].emmd5, md5tmp, CS_EMMSTORESIZE)) {
				rdr_debug_mask(aureader, D_EMM, "emm found in cache: count %d rewrite %d",
					au_cl->emmcache[i].count, aureader->rewritemm);
				if (aureader->cachemm && (au_cl->emmcache[i].count > aureader->rewritemm)) {
					reader_log_emm(aureader, ep, i, 2, NULL);
					return;
				}
				break;
			}
		}

		EMM_PACKET *emm_pack;
		if (cs_malloc(&emm_pack, sizeof(EMM_PACKET))) {
			rdr_debug_mask(aureader, D_EMM, "emm is being sent to reader");
			memcpy(emm_pack, ep, sizeof(EMM_PACKET));
			add_job(aureader->client, ACTION_READER_EMM, emm_pack, sizeof(EMM_PACKET));
		}
	}
	if (emmnok > 0 && emmnok == ll_count(client->aureader_list)) {
		client->emmnok++;
		if (client->account)
			client->account->emmnok++;
		first_client->emmnok++;
	}
}