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module-cccam.c
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module-cccam.c
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#include "globals.h"
#ifdef MODULE_CCCAM
#include "module-cacheex.h"
#include "module-cccam.h"
#include "module-cccam-data.h"
#include "module-cccshare.h"
#include "oscam-chk.h"
#include "oscam-client.h"
#include "oscam-ecm.h"
#include "oscam-emm.h"
#include "oscam-failban.h"
#include "oscam-garbage.h"
#include "oscam-lock.h"
#include "oscam-net.h"
#include "oscam-reader.h"
#include "oscam-string.h"
#include "oscam-time.h"
#include "oscam-work.h"
//Mode names for CMD_05 command:
const char *cmd05_mode_name[] = { "UNKNOWN", "PLAIN", "AES", "CC_CRYPT", "RC4",
"LEN=0" };
//Mode names for CMD_0C command:
const char *cmd0c_mode_name[] = { "NONE", "RC6", "RC4", "CC_CRYPT", "AES", "IDEA" };
uint8_t cc_node_id[8];
int32_t cc_cli_connect(struct s_client *cl);
int32_t cc_send_pending_emms(struct s_client *cl);
#define getprefix() (!cl?"":(!cl->cc?"":(((struct cc_data *)(cl->cc))->prefix)))
void cc_init_crypt(struct cc_crypt_block *block, uint8_t *key, int32_t len) {
int32_t i = 0;
uint8_t j = 0;
for (i = 0; i < 256; i++) {
block->keytable[i] = i;
}
for (i = 0; i < 256; i++) {
j += key[i % len] + block->keytable[i];
SWAPC(&block->keytable[i], &block->keytable[j]);
}
block->state = *key;
block->counter = 0;
block->sum = 0;
}
void cc_crypt(struct cc_crypt_block *block, uint8_t *data, int32_t len,
cc_crypt_mode_t mode) {
int32_t i;
uint8_t z;
for (i = 0; i < len; i++) {
block->counter++;
block->sum += block->keytable[block->counter];
SWAPC(&block->keytable[block->counter], &block->keytable[block->sum]);
z = data[i];
data[i] = z ^ block->keytable[(block->keytable[block->counter]
+ block->keytable[block->sum]) & 0xff];
data[i] ^= block->state;
if (!mode)
z = data[i];
block->state = block->state ^ z;
}
}
void cc_rc4_crypt(struct cc_crypt_block *block, uint8_t *data, int32_t len,
cc_crypt_mode_t mode) {
int32_t i;
uint8_t z;
for (i = 0; i < len; i++) {
block->counter++;
block->sum += block->keytable[block->counter];
SWAPC(&block->keytable[block->counter], &block->keytable[block->sum]);
z = data[i];
data[i] = z ^ block->keytable[(block->keytable[block->counter]
+ block->keytable[block->sum]) & 0xff];
if (!mode)
z = data[i];
block->state = block->state ^ z;
}
}
void cc_xor(uint8_t *buf) {
const char cccam[] = "CCcam";
uint8_t i;
for (i = 0; i < 8; i++) {
buf[8 + i] = i * buf[i];
if (i <= 5) {
buf[i] ^= cccam[i];
}
}
}
void cc_cw_crypt(struct s_client *cl, uint8_t *cws, uint32_t cardid) {
struct cc_data *cc = cl->cc;
int64_t node_id;
uint8_t tmp;
int32_t i;
if (cl->typ != 'c') {
node_id = b2ll(8, cc->node_id);
} else {
node_id = b2ll(8, cc->peer_node_id);
}
for (i = 0; i < 16; i++) {
tmp = cws[i] ^ (node_id >> (4 * i));
if (i & 1)
tmp = ~tmp;
cws[i] = (cardid >> (2 * i)) ^ tmp;
}
}
/** swap endianness (int) */
static void SwapLBi(unsigned char *buff, int32_t len)
{
#if __BYTE_ORDER != __BIG_ENDIAN
return;
#endif
int32_t i;
unsigned char swap[4];
for (i = 0; i < len / 4; i++) {
memcpy(swap, buff, 4);
buff[0] = swap[3];
buff[1] = swap[2];
buff[2] = swap[1];
buff[3] = swap[0];
buff += 4;
}
}
void cc_crypt_cmd0c(struct s_client *cl, uint8_t *buf, int32_t len) {
struct cc_data *cc = cl->cc;
uint8_t *out;
if (!cs_malloc(&out, len))
return;
switch (cc->cmd0c_mode) {
case MODE_CMD_0x0C_NONE: { // none additional encryption
memcpy(out, buf, len);
break;
}
case MODE_CMD_0x0C_RC6 : { //RC6
int32_t i;
SwapLBi(buf, len);
for (i = 0; i < len / 16; i++)
rc6_block_decrypt((uint32_t*)(buf+i*16), (uint32_t*)(out+i*16), 1, cc->cmd0c_RC6_cryptkey);
SwapLBi(out, len);
break;
}
case MODE_CMD_0x0C_RC4: { // RC4
cc_rc4_crypt(&cc->cmd0c_cryptkey, buf, len, ENCRYPT);
memcpy(out, buf, len);
break;
}
case MODE_CMD_0x0C_CC_CRYPT: { // cc_crypt
cc_crypt(&cc->cmd0c_cryptkey, buf, len, DECRYPT);
memcpy(out, buf, len);
break;
}
case MODE_CMD_0x0C_AES: { // AES
int32_t i;
for (i = 0; i<len / 16; i++)
AES_decrypt((unsigned char *) buf + i * 16,
(unsigned char *) out + i * 16, &cc->cmd0c_AES_key);
break;
}
case MODE_CMD_0x0C_IDEA : { //IDEA
int32_t i=0;
int32_t j;
while (i < len) {
idea_ecb_encrypt(buf + i, out + i, &cc->cmd0c_IDEA_dkey);
i += 8;
}
i = 8;
while (i < len) {
for (j=0; j < 8; j++)
out[j+i] ^= buf[j+i-8];
i += 8;
}
break;
}
}
memcpy(buf, out, len);
free(out);
}
void set_cmd0c_cryptkey(struct s_client *cl, uint8_t *key, uint8_t len) {
struct cc_data *cc = cl->cc;
uint8_t key_buf[32];
memset(&key_buf, 0, sizeof(key_buf));
if (len > 32)
len = 32;
memcpy(key_buf, key, len);
switch (cc->cmd0c_mode) {
case MODE_CMD_0x0C_NONE : { //NONE
break;
}
case MODE_CMD_0x0C_RC6 : { //RC6
rc6_key_setup(key_buf, 32, cc->cmd0c_RC6_cryptkey);
break;
}
case MODE_CMD_0x0C_RC4: //RC4
case MODE_CMD_0x0C_CC_CRYPT: { //CC_CRYPT
cc_init_crypt(&cc->cmd0c_cryptkey, key_buf, 32);
break;
}
case MODE_CMD_0x0C_AES: { //AES
memset(&cc->cmd0c_AES_key, 0, sizeof(cc->cmd0c_AES_key));
AES_set_decrypt_key((unsigned char *) key_buf, 256, &cc->cmd0c_AES_key);
break;
}
case MODE_CMD_0x0C_IDEA : { //IDEA
uint8_t key_buf_idea[16];
memcpy(key_buf_idea, key_buf, 16);
IDEA_KEY_SCHEDULE ekey;
idea_set_encrypt_key(key_buf_idea, &ekey);
idea_set_decrypt_key(&ekey,&cc->cmd0c_IDEA_dkey);
break;
}
}
}
int32_t sid_eq(struct cc_srvid *srvid1, struct cc_srvid *srvid2) {
return (srvid1->sid == srvid2->sid && (srvid1->chid == srvid2->chid || !srvid1->chid || !srvid2->chid) && (srvid1->ecmlen == srvid2->ecmlen || !srvid1->ecmlen || !srvid2->ecmlen));
}
struct cc_srvid * is_sid_blocked(struct cc_card *card, struct cc_srvid *srvid_blocked) {
LL_ITER it = ll_iter_create(card->badsids);
struct cc_srvid *srvid;
while ((srvid = ll_iter_next(&it))) {
if (sid_eq(srvid, srvid_blocked)) {
break;
}
}
return srvid;
}
struct cc_srvid * is_good_sid(struct cc_card *card, struct cc_srvid *srvid_good) {
LL_ITER it = ll_iter_create(card->goodsids);
struct cc_srvid *srvid;
while ((srvid = ll_iter_next(&it))) {
if (sid_eq(srvid, srvid_good)) {
break;
}
}
return srvid;
}
#define BLOCKING_SECONDS 60
void add_sid_block(struct s_client *cl __attribute__((unused)), struct cc_card *card,
struct cc_srvid *srvid_blocked) {
if (is_sid_blocked(card, srvid_blocked))
return;
struct cc_srvid_block *srvid;
if (!cs_malloc(&srvid, sizeof(struct cc_srvid_block)))
return;
memcpy(srvid, srvid_blocked, sizeof(struct cc_srvid));
srvid->blocked_till = time(NULL)+BLOCKING_SECONDS;
ll_append(card->badsids, srvid);
cs_debug_mask(D_READER, "%s added sid block %04X(CHID %04X, length %d) for card %08x",
getprefix(), srvid_blocked->sid, srvid_blocked->chid, srvid_blocked->ecmlen,
card->id);
}
void remove_sid_block(struct cc_card *card, struct cc_srvid *srvid_blocked) {
LL_ITER it = ll_iter_create(card->badsids);
struct cc_srvid *srvid;
while ((srvid = ll_iter_next(&it)))
if (sid_eq(srvid, srvid_blocked))
ll_iter_remove_data(&it);
}
void remove_good_sid(struct cc_card *card, struct cc_srvid *srvid_good) {
LL_ITER it = ll_iter_create(card->goodsids);
struct cc_srvid *srvid;
while ((srvid = ll_iter_next(&it)))
if (sid_eq(srvid, srvid_good))
ll_iter_remove_data(&it);
}
void add_good_sid(struct s_client *cl __attribute__((unused)), struct cc_card *card,
struct cc_srvid *srvid_good) {
if (is_good_sid(card, srvid_good))
return;
remove_sid_block(card, srvid_good);
struct cc_srvid *srvid;
if (!cs_malloc(&srvid, sizeof(struct cc_srvid)))
return;
memcpy(srvid, srvid_good, sizeof(struct cc_srvid));
ll_append(card->goodsids, srvid);
cs_debug_mask(D_READER, "%s added good sid %04X(%d) for card %08x",
getprefix(), srvid_good->sid, srvid_good->ecmlen, card->id);
}
/**
* reader
* clears and frees values for reinit
*/
void cc_cli_close(struct s_client *cl, int32_t call_conclose) {
struct s_reader *rdr = cl->reader;
struct cc_data *cc = cl->cc;
if (!rdr || !cc)
return;
if(rdr) rdr->tcp_connected = 0;
if(rdr) rdr->card_status = NO_CARD;
if(rdr) rdr->last_s = rdr->last_g = 0;
if(cl) cl->last = 0;
if (call_conclose) //clears also pending ecms!
network_tcp_connection_close(rdr, "close");
else
{
if (cl->udp_fd) {
close(cl->udp_fd);
cl->udp_fd = 0;
cl->pfd = 0;
}
}
cc->ecm_busy = 0;
cc->just_logged_in = 0;
}
struct cc_extended_ecm_idx *add_extended_ecm_idx(struct s_client *cl,
uint8_t send_idx, uint16_t ecm_idx, struct cc_card *card,
struct cc_srvid srvid, int8_t free_card) {
struct cc_data *cc = cl->cc;
struct cc_extended_ecm_idx *eei;
if (!cs_malloc(&eei, sizeof(struct cc_extended_ecm_idx)))
return NULL;
eei->send_idx = send_idx;
eei->ecm_idx = ecm_idx;
eei->card = card;
eei->cccam_id = card->id;
eei->srvid = srvid;
eei->free_card = free_card;
cs_ftime(&eei->tps);
ll_append(cc->extended_ecm_idx, eei);
//cs_debug_mask(D_TRACE, "%s add extended ecm-idx: %d:%d", getprefix(), send_idx, ecm_idx);
return eei;
}
struct cc_extended_ecm_idx *get_extended_ecm_idx(struct s_client *cl,
uint8_t send_idx, int32_t remove_item) {
struct cc_data *cc = cl->cc;
struct cc_extended_ecm_idx *eei;
LL_ITER it = ll_iter_create(cc->extended_ecm_idx);
while ((eei = ll_iter_next(&it))) {
if (eei->send_idx == send_idx) {
if (remove_item)
ll_iter_remove(&it);
//cs_debug_mask(D_TRACE, "%s get by send-idx: %d FOUND: %d",
// getprefix(), send_idx, eei->ecm_idx);
return eei;
}
}
#ifdef WITH_DEBUG
if (remove_item)
cs_debug_mask(cl->typ=='c'?D_CLIENT:D_READER, "%s get by send-idx: %d NOT FOUND", getprefix(),
send_idx);
#endif
return NULL;
}
struct cc_extended_ecm_idx *get_extended_ecm_idx_by_idx(struct s_client *cl,
uint16_t ecm_idx, int32_t remove_item) {
struct cc_data *cc = cl->cc;
struct cc_extended_ecm_idx *eei;
LL_ITER it = ll_iter_create(cc->extended_ecm_idx);
while ((eei = ll_iter_next(&it))) {
if (eei->ecm_idx == ecm_idx) {
if (remove_item)
ll_iter_remove(&it);
//cs_debug_mask(D_TRACE, "%s get by ecm-idx: %d FOUND: %d",
// getprefix(), ecm_idx, eei->send_idx);
return eei;
}
}
#ifdef WITH_DEBUG
if (remove_item)
cs_debug_mask(cl->typ=='c'?D_CLIENT:D_READER, "%s get by ecm-idx: %d NOT FOUND", getprefix(),
ecm_idx);
#endif
return NULL;
}
void cc_reset_pending(struct s_client *cl, int32_t ecm_idx) {
int32_t i = 0;
for (i = 0; i < cfg.max_pending; i++) {
if (cl->ecmtask[i].idx == ecm_idx && cl->ecmtask[i].rc == 101)
cl->ecmtask[i].rc = 100; //Mark unused
}
}
void free_extended_ecm_idx_by_card(struct s_client *cl, struct cc_card *card, int8_t null_only) {
struct cc_data *cc = cl->cc;
struct cc_extended_ecm_idx *eei;
LL_ITER it = ll_iter_create(cc->extended_ecm_idx);
while ((eei = ll_iter_next(&it))) {
if (eei->card == card) {
if (null_only) {
cc_reset_pending(cl, eei->ecm_idx);
if (eei->free_card)
free(eei->card);
ll_iter_remove_data(&it);
}
else {
if (eei->free_card)
free(eei->card);
eei->card = NULL;
}
}
}
}
void free_extended_ecm_idx(struct cc_data *cc) {
struct cc_extended_ecm_idx *eei;
LL_ITER it = ll_iter_create(cc->extended_ecm_idx);
while ((eei = ll_iter_next(&it))) {
if (eei->free_card)
free(eei->card);
ll_iter_remove_data(&it);
}
}
int32_t cc_recv_to(struct s_client *cl, uint8_t *buf, int32_t len) {
int32_t rc;
struct pollfd pfd;
while (1) {
pfd.fd = cl->udp_fd;
pfd.events = POLLIN | POLLPRI;
rc = poll(&pfd, 1, cfg.cc_recv_timeout);
if (rc < 0) {
if (errno==EINTR) continue;
return(-1); //error!!
}
if (rc == 1){
if(pfd.revents & POLLHUP)
return(-1); //hangup = error!!
else
break;
} else
return (-2); //timeout!!
}
return recv(cl->udp_fd, buf, len, MSG_WAITALL);
}
/**
* reader
* closes the connection and reopens it.
*/
static int8_t cc_cycle_connection(struct s_client *cl)
{
if (!cl || cl->kill)
return 0;
cs_debug_mask(D_TRACE, "%s unlocked-cycleconnection! timeout %dms",
getprefix(), cl->reader->cc_reconnect);
cc_cli_close(cl, 0);
cs_sleepms(50);
cc_cli_connect(cl);
return cl->reader->tcp_connected;
}
/**
* reader+server:
* receive a message
*/
int32_t cc_msg_recv(struct s_client *cl, uint8_t *buf, int32_t maxlen) {
struct s_reader *rdr = (cl->typ == 'c') ? NULL : cl->reader;
int32_t len;
struct cc_data *cc = cl->cc;
int32_t handle = cl->udp_fd;
if (handle <= 0 || maxlen < 4)
return -1;
if (!cl->cc) return -1;
cs_writelock(&cc->lockcmd);
if (!cl->cc) {
cs_writeunlock(&cc->lockcmd);
return -1;
}
len = recv(handle, buf, 4, MSG_WAITALL);
if (len != 4) { // invalid header length read
if (len <= 0)
cs_debug_mask(cl->typ=='c'?D_CLIENT:D_READER, "%s disconnected by remote server", getprefix());
else
cs_debug_mask(cl->typ=='c'?D_CLIENT:D_READER, "%s invalid header length (expected 4, read %d)", getprefix(), len);
cs_writeunlock(&cc->lockcmd);
return -1;
}
cc_crypt(&cc->block[DECRYPT], buf, 4, DECRYPT);
//cs_ddump_mask(D_CLIENT, buf, 4, "cccam: decrypted header:");
cc->g_flag = buf[0];
int32_t size = (buf[2] << 8) | buf[3];
if (size) { // check if any data is expected in msg
if (size > maxlen) {
cs_writeunlock(&cc->lockcmd);
cs_debug_mask(cl->typ=='c'?D_CLIENT:D_READER, "%s message too big (size=%d max=%d)", getprefix(), size, maxlen);
return 0;
}
len = recv(handle, buf + 4, size, MSG_WAITALL);
if (rdr && buf[1] == MSG_CW_ECM)
rdr->last_g = time(NULL);
if (len != size) {
cs_writeunlock(&cc->lockcmd);
if (len <= 0)
cs_debug_mask(cl->typ=='c'?D_CLIENT:D_READER, "%s disconnected by remote", getprefix());
else
cs_debug_mask(cl->typ=='c'?D_CLIENT:D_READER, "%s invalid message length read (expected %d, read %d)",
getprefix(), size, len);
return -1;
}
cc_crypt(&cc->block[DECRYPT], buf + 4, len, DECRYPT);
len += 4;
}
cs_writeunlock(&cc->lockcmd);
//cs_ddump_mask(cl->typ=='c'?D_CLIENT:D_READER, buf, len, "cccam: full decrypted msg, len=%d:", len);
return len;
}
/**
* reader+server
* send a message
*/
int32_t cc_cmd_send(struct s_client *cl, uint8_t *buf, int32_t len, cc_msg_type_t cmd) {
if (!cl->udp_fd) //disconnected
return -1;
struct s_reader *rdr = (cl->typ == 'c') ? NULL : cl->reader;
int32_t n;
struct cc_data *cc = cl->cc;
if (!cl->cc || cl->kill) return -1;
cs_writelock(&cc->lockcmd);
if (!cl->cc || cl->kill) {
cs_writeunlock(&cc->lockcmd);
return -1;
}
uint8_t *netbuf;
if (!cs_malloc(&netbuf, len + 4))
return -1;
if (cmd == MSG_NO_HEADER) {
memcpy(netbuf, buf, len);
} else {
// build command message
netbuf[0] = cc->g_flag; // flags??
netbuf[1] = cmd & 0xff;
netbuf[2] = len >> 8;
netbuf[3] = len & 0xff;
if (buf)
memcpy(netbuf + 4, buf, len);
len += 4;
}
//cs_ddump_mask(D_CLIENT, netbuf, len, "cccam: send:");
cc_crypt(&cc->block[ENCRYPT], netbuf, len, ENCRYPT);
n = send(cl->udp_fd, netbuf, len, 0);
if(rdr) rdr->last_s = time(NULL);
if(cl) cl->last = time(NULL);
cs_writeunlock(&cc->lockcmd);
free(netbuf);
if (n != len) {
if (rdr)
cc_cli_close(cl, 1);
else {
cs_writeunlock(&cc->cards_busy);
cs_disconnect_client(cl);
}
n = -1;
}
return n;
}
#define CC_DEFAULT_VERSION 1
#define CC_VERSIONS 8
char *version[CC_VERSIONS] = { "2.0.11", "2.1.1", "2.1.2", "2.1.3", "2.1.4", "2.2.0", "2.2.1", "2.3.0"};
char *build[CC_VERSIONS] = { "2892", "2971", "3094", "3165", "3191", "3290", "3316", "3367"};
char extcompat[CC_VERSIONS] = { 0, 0, 0, 0, 0, 1, 1, 1}; //Supporting new card format starting with 2.2.0
/**
* reader+server
* checks the cccam-version in the configuration
*/
void cc_check_version(char *cc_version, char *cc_build) {
int32_t i;
for (i = 0; i < CC_VERSIONS; i++) {
if (!memcmp(cc_version, version[i], strlen(version[i]))) {
memcpy(cc_build, build[i], strlen(build[i]) + 1);
cs_debug_mask(D_CLIENT, "cccam: auto build set for version: %s build: %s",
cc_version, cc_build);
return;
}
}
memcpy(cc_version, version[CC_DEFAULT_VERSION], strlen(
version[CC_DEFAULT_VERSION]));
memcpy(cc_build, build[CC_DEFAULT_VERSION], strlen(
build[CC_DEFAULT_VERSION]));
cs_debug_mask(D_CLIENT, "cccam: auto version set: %s build: %s", cc_version, cc_build);
return;
}
int32_t check_cccam_compat(struct cc_data *cc) {
int32_t res = 0;
int32_t i = 0;
for (i = 0; i < CC_VERSIONS; i++) {
if (!strcmp(cfg.cc_version, version[i])) {
res += extcompat[i];
break;
}
}
if (!res)
return 0;
for (i = 0; i < CC_VERSIONS; i++) {
if (!strcmp(cc->remote_version, version[i])) {
res += extcompat[i];
break;
}
}
return res == 2;
}
/**
* reader
* sends own version information to the CCCam server
*/
int32_t cc_send_cli_data(struct s_client *cl) {
struct s_reader *rdr = cl->reader;
struct cc_data *cc = cl->cc;
const int32_t size = 20 + 8 + 6 + 26 + 4 + 28 + 1;
uint8_t buf[size];
cs_debug_mask(D_READER, "cccam: send client data");
memcpy(cc->node_id, cc_node_id, sizeof(cc_node_id));
memcpy(buf, rdr->r_usr, sizeof(rdr->r_usr));
memcpy(buf + 20, cc->node_id, 8);
buf[28] = rdr->cc_want_emu; // <-- Client want to have EMUs, 0 - NO; 1 - YES
memcpy(buf + 29, rdr->cc_version, sizeof(rdr->cc_version)); // cccam version (ascii)
memcpy(buf + 61, rdr->cc_build, sizeof(rdr->cc_build)); // build number (ascii)
cs_debug_mask(D_READER, "%s sending own version: %s, build: %s", getprefix(),
rdr->cc_version, rdr->cc_build);
return cc_cmd_send(cl, buf, size, MSG_CLI_DATA);
}
/**
* server
* sends version information to the client
*/
int32_t cc_send_srv_data(struct s_client *cl) {
struct cc_data *cc = cl->cc;
cs_debug_mask(D_CLIENT, "cccam: send server data");
memcpy(cc->node_id, cc_node_id, sizeof(cc_node_id));
uint8_t buf[0x48];
memset(buf, 0, 0x48);
int32_t stealth = cl->account->cccstealth;
if (stealth == -1)
stealth = cfg.cc_stealth;
if (stealth) cc->node_id[7]++;
memcpy(buf, cc->node_id, 8);
char cc_build[7], tmp_dbg[17];
memset(cc_build, 0, sizeof(cc_build));
cc_check_version((char *) cfg.cc_version, cc_build);
memcpy(buf + 8, cfg.cc_version, sizeof(cfg.cc_version)); // cccam version (ascii)
memcpy(buf + 40, cc_build, sizeof(cc_build)); // build number (ascii)
cs_debug_mask(D_CLIENT, "%s version: %s, build: %s nodeid: %s", getprefix(),
cfg.cc_version, cc_build, cs_hexdump(0, cc->peer_node_id, 8, tmp_dbg, sizeof(tmp_dbg)));
return cc_cmd_send(cl, buf, 0x48, MSG_SRV_DATA);
}
int32_t loop_check(uint8_t *myid, struct s_client *cl) {
if (!cl)
return 0;
struct cc_data *cc = cl->cc;
if (!cc)
return 0;
return !memcmp(myid, cc->peer_node_id, sizeof(cc->peer_node_id)); // same nodeid? ignore
}
/**
* reader
* retrieves the next waiting ecm request
*/
int32_t cc_get_nxt_ecm(struct s_client *cl) {
struct cc_data *cc = cl->cc;
ECM_REQUEST *er, *ern = NULL;
int32_t n, i, pending=0;
struct timeb t;
cs_ftime(&t);
int32_t diff = (int32_t)cfg.ctimeout+500;
n = -1;
for (i = 0; i < cfg.max_pending; i++) {
er = &cl->ecmtask[i];
if ((comp_timeb(&t, &er->tps) >= diff) && (er->rc >= 10)) // drop timeouts
{
er->rc = E_TIMEOUT;
write_ecm_answer(cl->reader, er, E_TIMEOUT, 0, NULL, NULL);
}
else if (er->rc >= 10 && er->rc <= 100) { // stil active and waiting
pending++;
if (loop_check(cc->peer_node_id, er->client)) {
cs_debug_mask(D_READER, "%s ecm loop detected! client %s (%8lX)",
getprefix(), er->client->account->usr, (unsigned long)er->client->thread);
er->rc = E_NOTFOUND;
er->rcEx = E2_CCCAM_LOOP;
write_ecm_answer(cl->reader, er, E_NOTFOUND, E2_CCCAM_LOOP, NULL, NULL);
}
else
// search for the ecm with the lowest time, this should be the next to go
if (n < 0 || (ern->tps.time - er->tps.time < 0)) {
//check for already pending:
if (cc && cc->extended_mode) {
int32_t j,found;
ECM_REQUEST *erx;
for (found = j = 0; j < cfg.max_pending; j++) {
erx = &cl->ecmtask[j];
if (i!=j && erx->rc == 101 &&
er->caid==erx->caid &&
er->ecmd5==erx->ecmd5) {
found=1;
break;
}
}
if (!found) {
n = i;
ern = er;
}
}
else {
n = i;
ern = er;
}
}
}
}
cl->pending=pending;
return n;
}
/**
* sends the secret cmd05 answer to the server
*/
int32_t send_cmd05_answer(struct s_client *cl) {
struct cc_data *cc = cl->cc;
if (!cc->cmd05_active || cc->ecm_busy) //exit if not in cmd05 or waiting for ECM answer
return 0;
cc->cmd05_active--;
if (cc->cmd05_active)
return 0;
uint8_t *data = cc->cmd05_data;
cc_cmd05_mode cmd05_mode = MODE_UNKNOWN;
// by Project:Keynation
switch (cc->cmd05_data_len) {
case 0: { //payload 0, return with payload 0!
cc_cmd_send(cl, NULL, 0, MSG_CMD_05);
cmd05_mode = MODE_LEN0;
break;
}
case 256: {
cmd05_mode = cc->cmd05_mode;
switch (cmd05_mode) {
case MODE_PLAIN: { //Send plain unencrypted back
cc_cmd_send(cl, data, 256, MSG_CMD_05);
break;
}
case MODE_AES: { //encrypt with received aes128 key:
AES_KEY key;
uint8_t aeskey[16];
uint8_t out[256];
memcpy(aeskey, cc->cmd05_aeskey, 16);
memset(&key, 0, sizeof(key));
AES_set_encrypt_key((unsigned char *) &aeskey, 128, &key);
int32_t i;
for (i = 0; i < 256; i += 16)
AES_encrypt((unsigned char *) data + i, (unsigned char *) &out
+ i, &key);
cc_cmd_send(cl, out, 256, MSG_CMD_05);
break;
}
case MODE_CC_CRYPT: { //encrypt with cc_crypt:
cc_crypt(&cc->cmd05_cryptkey, data, 256, ENCRYPT);
cc_cmd_send(cl, data, 256, MSG_CMD_05);
break;
}
case MODE_RC4_CRYPT: {//special xor crypt:
cc_rc4_crypt(&cc->cmd05_cryptkey, data, 256, DECRYPT);
cc_cmd_send(cl, data, 256, MSG_CMD_05);
break;
}
default:
cmd05_mode = MODE_UNKNOWN;
}
break;
}
default:
cmd05_mode = MODE_UNKNOWN;
}
//unhandled types always needs cycle connection after 50 ECMs!!
if (cmd05_mode == MODE_UNKNOWN) {
cc_cmd_send(cl, NULL, 0, MSG_CMD_05);
if (!cc->max_ecms) { //max_ecms already set?
cc->max_ecms = 50;
cc->ecm_counter = 0;
}
}
cs_debug_mask(D_READER, "%s sending CMD_05 back! MODE: %s len=%d",
getprefix(), cmd05_mode_name[cmd05_mode], cc->cmd05_data_len);
cc->cmd05NOK = 1;
return 1;
}
int32_t get_UA_ofs(uint16_t caid) {
int32_t ofs = 0;
switch (caid >> 8) {
case 0x05: //VIACCESS:
case 0x0D: //CRYPTOWORKS:
ofs = 1;
break;
case 0x4B: //TONGFANG:
case 0x09: //VIDEOGUARD:
case 0x0B: //CONAX:
case 0x18: //NAGRA:
case 0x01: //SECA:
case 0x00: //SECAMANAGMENT:
case 0x17: //BETACRYPT
case 0x06: //IRDETO:
ofs = 2;
break;
}
if (caid == 0x5581 || caid == 0x4AEE) //BULCRYPT:
ofs = 0;
return ofs;
}
int32_t UA_len(uint8_t *ua) {
int32_t i, len=0;
for (i=0;i<8;i++)
if (ua[i]) len++;
return len;
}
void UA_left(uint8_t *in, uint8_t *out, int32_t ofs) {
memset(out, 0, 8);
memcpy(out, in+ofs, 8-ofs);
}
void UA_right(uint8_t *in, uint8_t *out, int32_t len) {
int32_t ofs = 0;
while (len) {
memcpy(out+ofs, in, len);
len--;
if (out[len]) break;
ofs++;
out[0]=0;
}
}
/**
* cccam uses UA right justified
**/
void cc_UA_oscam2cccam(uint8_t *in, uint8_t *out, uint16_t caid) {
uint8_t tmp[8];
memset(out, 0, 8);
memset(tmp, 0, 8);
//switch (caid>>8) {
// case 0x17: //IRDETO/Betacrypt:
// //oscam: AA BB CC DD 00 00 00 00
// //cccam: 00 00 00 00 DD AA BB CC
// out[4] = in[3]; //Hexbase
// out[5] = in[0];
// out[6] = in[1];
// out[7] = in[2];
// return;
//
// //Place here your own adjustments!
//}
hexserial_to_newcamd(in, tmp+2, caid);
UA_right(tmp, out, 8);
}
/**
* oscam has a special format, depends on offset or type:
**/
void cc_UA_cccam2oscam(uint8_t *in, uint8_t *out, uint16_t caid) {
uint8_t tmp[8];
memset(out, 0, 8);
memset(tmp, 0, 8);
//switch(caid>>8) {
// case 0x17: //IRDETO/Betacrypt:
// //cccam: 00 00 00 00 DD AA BB CC
// //oscam: AA BB CC DD 00 00 00 00
// out[0] = in[5];
// out[1] = in[6];
// out[2] = in[7];
// out[3] = in[4]; //Hexbase
// return;
// //Place here your own adjustments!
//}
int32_t ofs = get_UA_ofs(caid);
UA_left(in, tmp, ofs);
newcamd_to_hexserial(tmp, out, caid);
}
void cc_SA_oscam2cccam(uint8_t *in, uint8_t *out) {
memcpy(out, in, 4);
}
void cc_SA_cccam2oscam(uint8_t *in, uint8_t *out) {
memcpy(out, in, 4);
}
int32_t cc_UA_valid(uint8_t *ua) {
int32_t i;