void *th_cs_connect_cli(struct cs_clicon *param)
{
char passwdcrypt[120];
unsigned char keymod[14];
int i,index;
unsigned char sessionkey[16];
struct cs_custom_data clicd;
unsigned char buf[CWS_NETMSGSIZE];
struct cardserver_data *cs = param->cs;
int sock = param->sock;
uint32 ip = param->ip;
free(param);
// Create random deskey
for (i=0; i<14; i++) keymod[i] = 0xff & rand();
// Create NewBox ID
keymod[3] = (keymod[0]^'N') + keymod[1] + keymod[2];
keymod[7] = keymod[4] + (keymod[5]^'B') + keymod[6];
keymod[11] = keymod[8] + keymod[9] + (keymod[10]^'x');
//STAT: SEND RND KEY
// send random des key
if (send_nonb(sock, keymod, 14, 500)<=0) {
debugf(" ERR SEND\n");
close(sock);
pthread_exit(NULL);
}
uint32 ticks = GetTickCount();
// Calc SessionKey
//debugf(" DES Key: "); debughex(keymod,14);
des_login_key_get(keymod, cs->key, 14, sessionkey);
//debugf(" Login Key: "); debughex(sessionkey,16);
//md5_crypt("pass", "$1$abcdefgh$",passwdcrypt);
//debugf(" passwdcrypt = %s\n",passwdcrypt);
//STAT: LOGIN INFO
// 3. login info
i = cs_message_receive(sock, &clicd, buf, sessionkey,3000);
if (i<=0) {
if (i==-2) debugf(" %s: (%s) new connection closed, wrong des key\n", cs->name, ip2string(ip));
else debugf(" %s: (%s) new connection closed, receive timeout\n", cs->name, ip2string(ip));
close(sock);
pthread_exit(NULL);
}
ticks = GetTickCount()-ticks;
if (buf[0]!=MSG_CLIENT_2_SERVER_LOGIN) {
close(sock);
pthread_exit(NULL);
}
// Check username length
if ( strlen( (char*)buf+3 )>63 ) {
/*
buf[0] = MSG_CLIENT_2_SERVER_LOGIN_NAK;
buf[1] = 0;
buf[2] = 0;
cs_message_send(sock, NULL, buf, 3, sessionkey);
*/
debugf(" %s: (%s) new connection closed, wrong username length\n", cs->name, ip2string(ip));
close(sock);
pthread_exit(NULL);
}
pthread_mutex_lock(&prg.lockcli);
index = 3;
struct cs_client_data *usr = cs->client;
int found = 0;
while (usr) {
if (!strcmp(usr->user,(char*)&buf[index])) {
found=1;
break;
}
usr = usr->next;
}
if (!found) {
pthread_mutex_unlock(&prg.lockcli);
buf[0] = MSG_CLIENT_2_SERVER_LOGIN_NAK;
buf[1] = 0;
buf[2] = 0;
//cs_message_send(sock, NULL, buf, 3, sessionkey);
debugf(" %s: (%s) new connection closed, unknown user '%s'\n", cs->name, ip2string(ip), &buf[3]);
close(sock);
pthread_exit(NULL);
}
// Check password
index += strlen(usr->user) +1;
__md5_crypt(usr->pass, "$1$abcdefgh$",passwdcrypt);
if (!strcmp(passwdcrypt,(char*)&buf[index])) {
//Check Reconnection
if (usr->handle!=INVALID_SOCKET) {
debugf(" %s: user already connected '%s' (%s)\n", cs->name, usr->user, ip2string(ip));
cs_disconnect_cli(usr);
}
// Store program id
usr->progid = clicd.sid;
//
buf[0] = MSG_CLIENT_2_SERVER_LOGIN_ACK;
buf[1] = 0;
buf[2] = 0;
// Send NewBox Id&Version
if (clicd.provid==0x0057484F) { // WHO
clicd.provid = 0x004E4278; // MBx
clicd.sid = REVISION; // Revision
cs_message_send(sock, &clicd, buf, 3, sessionkey);
} else cs_message_send(sock, NULL, buf, 3, sessionkey);
des_login_key_get( cs->key, (unsigned char*)passwdcrypt, strlen(passwdcrypt),sessionkey);
memcpy( &usr->sessionkey, &sessionkey, 16);
// Setup User data
usr->handle = sock;
usr->ip = ip;
usr->ping = ticks;
usr->lastecmtime = GetTickCount();
usr->ecm.busy=0;
usr->ecm.recvtime=0;
usr->connected = GetTickCount();
usr->chkrecvtime = 0;
debugf(" %s: client '%s' connected (%s)\n", cs->name, usr->user, ip2string(ip));
pipe_wakeup( srvsocks[1] );
}
else {
// send NAK
buf[0] = MSG_CLIENT_2_SERVER_LOGIN_NAK;
buf[1] = 0;
buf[2] = 0;
//cs_message_send(sock, NULL, buf, 3, sessionkey);
debugf(" newcamd: client '%s' wrong password (%s)\n", usr->user, ip2string(ip));
close(sock);
}
pthread_mutex_unlock(&prg.lockcli);
pthread_exit(NULL);
}
void *freecc_connect_cli(struct struct_clicon *param)
{
uint8 buf[CC_MAXMSGSIZE];
uint8 data[16];
int i;
struct cc_crypt_block sendblock; // crypto state block
struct cc_crypt_block recvblock; // crypto state block
char usr[64];
char pwd[255];
int sock = param->sock;
uint32 ip = param->ip;
free(param);
memset(usr, 0, sizeof(usr));
memset(pwd, 0, sizeof(pwd));
// create & send random seed
for(i=0; i<12; i++ ) data[i]=fast_rnd();
// Create Multics ID
data[3] = (data[0]^'M') + data[1] + data[2];
data[7] = data[4] + (data[5]^'C') + data[6];
data[11] = data[8] + data[9] + (data[10]^'S');
//Create checksum for "O" cccam:
for (i = 0; i < 4; i++) {
data[12 + i] = (data[i] + data[4 + i] + data[8 + i]) & 0xff;
}
send_nonb(sock, data, 16, 100);
//XOR init bytes with 'CCcam'
cc_crypt_xor(data);
//SHA1
SHA_CTX ctx;
SHA1_Init(&ctx);
SHA1_Update(&ctx, data, 16);
SHA1_Final(buf, &ctx);
//initialisate crypto states
cc_crypt_init(&sendblock, buf, 20);
cc_decrypt(&sendblock, data, 16);
cc_crypt_init(&recvblock, data, 16);
cc_decrypt(&recvblock, buf, 20);
//debugdump(buf, 20, "SHA1 hash:");
memcpy(usr,buf,20);
if ((i=recv_nonb(sock, buf, 20,3000)) == 20) {
cc_decrypt(&recvblock, buf, 20);
//debugdump(buf, 20, "Recv SHA1 hash:");
if ( memcmp(buf,usr,20)!=0 ) {
//debugf(" cc_connect_cli(): wrong sha1 hash from client! (%s)\n",ip2string(ip));
close(sock);
return NULL;
}
} else {
//debugf(" cc_connect_cli(): recv sha1 timeout\n");
close(sock);
return NULL;
}
// receive username
if ((i=recv_nonb(sock, buf, 20,3000)) == 20) {
cc_decrypt(&recvblock, buf, i);
memcpy(usr,buf,20);
//debugf(" cc_connect_cli(): username '%s'\n", usr);
}
else {
//debugf(" cc_connect_cli(): recv user timeout\n");
close(sock);
return NULL;
}
// Check for username
pthread_mutex_lock(&prg.lockfreecccli);
int found = 0;
struct cc_client_data *cli = cfg.freecccam.client;
while (cli) {
if (!strcmp(cfg.freecccam.user,usr)) {
if (cli->handle<=0) {
found = 1;
break;
}
else {
if (cli->ip == ip) { // dont connect
cc_disconnect_cli(cli);
found = 1;
break;
}
}
}
cli = cli->next;
}
if (!found)
while (cli) {
if (!strcmp(cfg.freecccam.user,usr)) {
if (cli->handle>0) {
// Check if we can disconnect idle state clients
if (GetTickCount()-cli->lastecmtime > 100000) cc_disconnect_cli(cli);
}
if (cli->handle<=0) {
found = 1;
break;
}
}
cli = cli->next;
}
pthread_mutex_unlock(&prg.lockfreecccli);
if (!found) {
debugf(" FreeCCcam: Failed to connect new client(%s)\n",ip2string(ip));
close(sock);
return NULL;
}
// receive passwd / 'CCcam'
strcpy( pwd, cfg.freecccam.pass);
cc_decrypt(&recvblock, (uint8*)pwd, strlen(pwd));
if ((i=recv_nonb(sock, buf, 6,3000)) == 6) {
cc_decrypt(&recvblock, buf, 6);
if (memcmp( buf+1, "Ccam\0",5)) {
debugf(" FreeCCcam: login failed from client(%s)\n",ip2string(ip));
close(sock);
return NULL;
}
}
else {
close(sock);
return NULL;
}
// send passwd ack
memset(buf, 0, 20);
memcpy(buf, "CCcam\0", 6);
//debugf("Server: send ack '%s'\n",buf);
cc_encrypt(&sendblock, buf, 20);
send_nonb(sock, buf, 20, 100);
sprintf(cli->user,"%s", ip2string(ip));
//cli->ecmnb=0;
//cli->ecmok=0;
memcpy(&cli->sendblock,&sendblock,sizeof(sendblock));
memcpy(&cli->recvblock,&recvblock,sizeof(recvblock));
debugf(" FreeCCcam: client(%s) connected\n",ip2string(ip));
// recv cli data
memset(buf, 0, sizeof(buf));
i = cc_msg_recv( sock, &cli->recvblock, buf, 3000);
if (i!=97) {
debug("error recv cli data\n");
close(sock);
return NULL;
}
// Setup Client Data
// pthread_mutex_lock(&prg.lockfreecccli);
memcpy( cli->nodeid, buf+24, 8);
memcpy( cli->version, buf+33, 32);
memcpy( cli->build, buf+65, 32 );
debugf(" FreeCCcam: client(%s) running version %s build %s\n",ip2string(ip), cli->version, cli->build); // cli->nodeid,8,
cli->cardsent = 0;
cli->connected = GetTickCount();
cli->lastecmtime = GetTickCount();
cli->handle = sock;
cli->ip = ip;
cli->chkrecvtime = 0;
// pthread_mutex_unlock(&prg.lockfreecccli);
// send cli data ack
cc_msg_send( sock, &cli->sendblock, CC_MSG_CLI_INFO, 0, NULL);
//cc_msg_send( sock, &cli->sendblock, CC_MSG_BAD_ECM, 0, NULL);
int sendversion = ( (cli->version[28]=='W')&&(cli->version[29]='H')&&(cli->version[30]='O') );
cc_sendinfo_cli(cli, sendversion);
//cc_msg_send( sock, &cli->sendblock, CC_MSG_BAD_ECM, 0, NULL);
cli->cardsent = 1;
usleep(10000);
frcc_sendcards_cli(cli);
pipe_wakeup( srvsocks[1] );
return cli;
}
