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module-gbox.c
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module-gbox.c
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#define MODULE_LOG_PREFIX "gbox"
#include "globals.h"
#ifdef MODULE_GBOX
#include "module-gbox.h"
#include "module-gbox-helper.h"
#include "module-gbox-sms.h"
#include "module-gbox-cards.h"
#include "module-cccam.h"
#include "module-cccam-data.h"
#include "oscam-failban.h"
#include "oscam-client.h"
#include "oscam-ecm.h"
#include "oscam-lock.h"
#include "oscam-net.h"
#include "oscam-chk.h"
#include "oscam-string.h"
#include "oscam-time.h"
#include "oscam-reader.h"
#include "oscam-garbage.h"
#include "oscam-files.h"
#define RECEIVE_BUFFER_SIZE 1024
#define MIN_GBOX_MESSAGE_LENGTH 10 //CMD + pw + pw. TODO: Check if is really min
#define MIN_ECM_LENGTH 8
#define HELLO_KEEPALIVE_TIME 120 //send hello to peer every 2 min in case no ecm received
#define STATS_WRITE_TIME 300 //write stats file every 5 min
#define LOCAL_GBOX_MAJOR_VERSION 0x02
static struct gbox_data local_gbox;
static uint8_t local_gbox_initialized = 0;
static time_t last_stats_written;
static int32_t gbox_send_ecm(struct s_client *cli, ECM_REQUEST *er);
char *get_gbox_tmp_fname(char *fext)
{
static char gbox_tmpfile_buf[64] = { 0 };
const char *slash = "/";
if(!cfg.gbox_tmp_dir)
{
snprintf(gbox_tmpfile_buf, sizeof(gbox_tmpfile_buf), "%s%s%s",get_tmp_dir(), slash, fext);
}
else
{
if(cfg.gbox_tmp_dir[strlen(cfg.gbox_tmp_dir) - 1] == '/') { slash = ""; }
snprintf(gbox_tmpfile_buf, sizeof(gbox_tmpfile_buf), "%s%s%s", cfg.gbox_tmp_dir, slash, fext);
}
return gbox_tmpfile_buf;
}
uint16_t gbox_get_local_gbox_id(void)
{
return local_gbox.id;
}
uint32_t gbox_get_local_gbox_password(void)
{
return local_gbox.password;
}
static uint8_t gbox_get_my_vers (void)
{
uint8_t gbx_vers = a2i(cfg.gbox_my_vers,1);
return gbx_vers;
}
static uint8_t gbox_get_my_cpu_api (void)
{
/* For configurable later adapt according to these functions:
unsigned char *GboxAPI( unsigned char a ) {
a = a & 7 ;
switch ( a ) {
case 0 : strcpy ( s_24,"No API");
break;
case 1 : strcpy ( s_24,"API 1");
break;
case 2 : strcpy ( s_24,"API 2");
break;
case 3 : strcpy ( s_24,"API 3");
break;
case 4 : strcpy ( s_24,"IBM API");
break;
default : strcpy ( s_24," ");
}
return s_24 ;
}
unsigned char *GboxCPU( unsigned char a ) {
a = a & 112 ;
a = a >> 4 ;
switch ( a ) {
case 1 : strcpy ( s_23,"80X86 compatible CPU");
break;
case 2 : strcpy ( s_23,"Motorola PowerPC MPC823 CPU");
break;
case 3 : strcpy ( s_23,"IBM PowerPC STB CPU");
break;
default : strcpy ( s_23," ");
}
return s_23:
}
*/
return a2i(cfg.gbox_my_cpu_api,1);
}
static void write_goodnight_to_osd_file(struct s_client *cli)
{
char *fext= FILE_GOODNIGHT_OSD;
char *fname = get_gbox_tmp_fname(fext);
if (file_exists(fname))
{
char buf[50];
memset(buf, 0, sizeof(buf));
snprintf(buf, sizeof(buf), "%s %s %s", fname, username(cli), cli->reader->device);
cs_log_dbg(D_READER, "found file %s - write goodnight info from %s %s to OSD", fname, username(cli),cli->reader->device);
char *cmd = buf;
FILE *p;
if ((p = popen(cmd, "w")) == NULL)
{
cs_log("Error %s",fname);
return;
}
pclose(p);
}
return;
}
void gbox_write_peer_onl(void)
{
char *fext= FILE_GBOX_PEER_ONL;
char *fname = get_gbox_tmp_fname(fext);
FILE *fhandle = fopen(fname, "w");
if(!fhandle)
{
cs_log("Couldn't open %s: %s", fname, strerror(errno));
return;
}
cs_readlock(__func__, &clientlist_lock);
struct s_client *cl;
for(cl = first_client; cl; cl = cl->next)
{
if(cl->gbox && cl->typ == 'p')
{
struct gbox_peer *peer = cl->gbox;
if (peer->online)
{ fprintf(fhandle, "1 %s %s %04X 2.%02X\n",cl->reader->device, cs_inet_ntoa(cl->ip),peer->gbox.id, peer->gbox.minor_version); }
else
{ fprintf(fhandle, "0 %s %s %04X 0.00\n",cl->reader->device, cs_inet_ntoa(cl->ip),peer->gbox.id); }
}
}
cs_readunlock(__func__, &clientlist_lock);
fclose(fhandle);
return;
}
void gbox_write_version(void)
{
char *fext= FILE_GBOX_VERSION;
char *fname = get_gbox_tmp_fname(fext);
FILE *fhandle = fopen(fname, "w");
if(!fhandle)
{
cs_log("Couldn't open %s: %s", get_gbox_tmp_fname(FILE_GBOX_VERSION), strerror(errno));
return;
}
fprintf(fhandle, "%02X.%02X\n", LOCAL_GBOX_MAJOR_VERSION, gbox_get_my_vers());
fclose(fhandle);
}
void hostname2ip(char *hostname, IN_ADDR_T *ip)
{
cs_resolve(hostname, ip, NULL, NULL);
}
static uint16_t gbox_convert_password_to_id(uint32_t password)
{
return (((password >> 24) & 0xff) ^ ((password >> 8) & 0xff)) << 8 | (((password >> 16) & 0xff) ^ (password & 0xff));
}
static int8_t gbox_remove_all_bad_sids(ECM_REQUEST *er, uint16_t sid)
{
if (!er) { return -1; }
struct gbox_card_pending *pending = NULL;
LL_LOCKITER *li = ll_li_create(er->gbox_cards_pending, 0);
while ((pending = ll_li_next(li)))
{ gbox_remove_bad_sid(pending->id.peer, pending->id.slot, sid); }
ll_li_destroy(li);
return 0;
}
void gbox_free_cards_pending(ECM_REQUEST *er)
{
ll_destroy_free_data(&er->gbox_cards_pending);
}
void gbox_init_ecm_request_ext(struct gbox_ecm_request_ext *ere)
{
ere->gbox_hops = 0;
ere->gbox_peer = 0;
ere->gbox_mypeer = 0;
ere->gbox_slot = 0;
ere->gbox_version = 0;
ere->gbox_unknown = 0;
ere->gbox_type = 0;
}
struct s_client *get_gbox_proxy(uint16_t gbox_id)
{
struct s_client *cl;
struct s_client *found = NULL;
cs_readlock(__func__, &clientlist_lock);
for(cl = first_client; cl; cl = cl->next)
{
if(cl->typ == 'p' && cl->gbox && cl->gbox_peer_id == gbox_id)
{
found = cl;
break;
}
}
cs_readunlock(__func__, &clientlist_lock);
return found;
}
static int8_t gbox_peer_online(struct gbox_peer *peer, uint8_t online)
{
if (!peer) { return -1; }
peer->online = online;
gbox_write_peer_onl();
return 0;
}
static int8_t gbox_reinit_peer(struct gbox_peer *peer)
{
if (!peer) { return -1; }
peer->ecm_idx = 0;
peer->next_hello = 0;
gbox_delete_cards(GBOX_DELETE_FROM_PEER, peer->gbox.id);
gbox_peer_online(peer, GBOX_PEER_OFFLINE);
return 0;
}
static int8_t gbox_reinit_proxy(struct s_client *proxy)
{
if (!proxy) { return -1; }
struct gbox_peer *peer = proxy->gbox;
gbox_reinit_peer(peer);
if (!proxy->reader) { return -1; }
proxy->reader->tcp_connected = 0;
proxy->reader->card_status = NO_CARD;
proxy->reader->last_s = proxy->reader->last_g = 0;
return 0;
}
void gbox_send(struct s_client *cli, uchar *buf, int32_t l)
{
struct gbox_peer *peer = cli->gbox;
cs_log_dump_dbg(D_READER, buf, l, "<- decrypted data (%d bytes):", l);
hostname2ip(cli->reader->device, &SIN_GET_ADDR(cli->udp_sa));
SIN_GET_FAMILY(cli->udp_sa) = AF_INET;
SIN_GET_PORT(cli->udp_sa) = htons((uint16_t)cli->reader->r_port);
gbox_encrypt(buf, l, peer->gbox.password);
sendto(cli->udp_fd, buf, l, 0, (struct sockaddr *)&cli->udp_sa, cli->udp_sa_len);
cs_log_dump_dbg(D_READER, buf, l, "<- encrypted data (%d bytes):", l);
}
void gbox_send_hello_packet(struct s_client *cli, int8_t number, uchar *outbuf, uchar *ptr, int32_t nbcards, uint8_t hello_stat)
{
struct gbox_peer *peer = cli->gbox;
int32_t hostname_len = strlen(cfg.gbox_hostname);
int32_t len;
gbox_message_header(outbuf, MSG_HELLO, peer->gbox.password, local_gbox.password);
// initial HELLO = 0, subsequent = 1
if(hello_stat > GBOX_STAT_HELLOS)
{ outbuf[10] = 1; }
else
{ outbuf[10] = 0; }
outbuf[11] = number; // 0x80 (if last packet) else 0x00 | packet number
if((number & 0x0F) == 0)
{
if(hello_stat != GBOX_STAT_HELLOL)
{ memcpy(++ptr, gbox_get_checkcode(), 7); }
else
{ memset(++ptr, 0, 7); }
ptr += 7;
*ptr = local_gbox.minor_version;
*(++ptr) = local_gbox.cpu_api;
memcpy(++ptr, cfg.gbox_hostname, hostname_len);
ptr += hostname_len;
*ptr = hostname_len;
}
len = ptr - outbuf + 1;
switch(hello_stat)
{
case GBOX_STAT_HELLOL:
cs_log("<- HelloL to %s", cli->reader->label);
break;
case GBOX_STAT_HELLOS:
cs_log("<- HelloS total cards %d to %s", nbcards, cli->reader->label);
break;
case GBOX_STAT_HELLOR:
cs_log("<- HelloR total cards %d to %s", nbcards, cli->reader->label);
break;
default:
cs_log("<- hello total cards %d to %s", nbcards, cli->reader->label);
break;
}
cs_log_dump_dbg(D_READER, outbuf, len, "<- hello, (len=%d):", len);
gbox_compress(outbuf, len, &len);
gbox_send(cli, outbuf, len);
}
void gbox_send_hello(struct s_client *proxy, uint8_t hello_stat)
{
if (!proxy)
{
cs_log("Invalid call to gbox_send_hello with proxy");
return;
}
uint16_t nbcards = 0;
uint8_t packet;
uchar buf[2048];
packet = 0;
uchar *ptr = buf + 11;
if(gbox_count_cards() != 0 && hello_stat > GBOX_STAT_HELLOL)
{
struct gbox_peer *peer = proxy->gbox;
if (!peer || !peer->my_user || !peer->my_user->account)
{
cs_log("Invalid call to gbox_send_hello with peer");
return;
}
memset(buf, 0, sizeof(buf));
struct gbox_card *card;
GBOX_CARDS_ITER *gci = gbox_cards_iter_create();
while((card = gbox_cards_iter_next(gci)))
{
//send to user only cards which matching CAID from account and lvl > 0
//do not send peer cards back
if(chk_ctab(gbox_get_caid(card->caprovid), &peer->my_user->account->ctab) && (card->lvl > 0) &&
(!card->origin_peer || (card->origin_peer && card->origin_peer->gbox.id != peer->gbox.id)))
{
*(++ptr) = card->caprovid >> 24;
*(++ptr) = card->caprovid >> 16;
*(++ptr) = card->caprovid >> 8;
*(++ptr) = card->caprovid & 0xff;
*(++ptr) = 1; //note: original gbx is more efficient and sends all cards of one caid as package
*(++ptr) = card->id.slot;
*(++ptr) = ((card->lvl - 1) << 4) + card->dist + 1;
*(++ptr) = card->id.peer >> 8;
*(++ptr) = card->id.peer & 0xff;
nbcards++;
if(nbcards == 100) //check if 100 is good or we need more sophisticated algorithm
{
gbox_send_hello_packet(proxy, packet, buf, ptr, nbcards, hello_stat);
packet++;
nbcards = 0;
ptr = buf + 11;
memset(buf, 0, sizeof(buf));
}
}
}
gbox_cards_iter_destroy(gci);
} // end if local card exists
//last packet has bit 0x80 set
gbox_send_hello_packet(proxy, 0x80 | packet, buf, ptr, nbcards, hello_stat);
return;
}
void gbox_reconnect_client(uint16_t gbox_id)
{
struct s_client *cl;
cs_readlock(__func__, &clientlist_lock);
for(cl = first_client; cl; cl = cl->next)
{
if(cl->gbox && cl->typ == 'p' && cl->gbox_peer_id == gbox_id)
{
hostname2ip(cl->reader->device, &SIN_GET_ADDR(cl->udp_sa));
SIN_GET_FAMILY(cl->udp_sa) = AF_INET;
SIN_GET_PORT(cl->udp_sa) = htons((uint16_t)cl->reader->r_port);
hostname2ip(cl->reader->device, &(cl->ip));
gbox_reinit_proxy(cl);
gbox_send_hello(cl, GBOX_STAT_HELLOL);
}
}
cs_readunlock(__func__, &clientlist_lock);
}
static void *gbox_server(struct s_client *cli, uchar *UNUSED(b), int32_t l)
{
if(l > 0)
{
cs_log("gbox_server %s/%d", cli->reader->label, cli->port);
// gbox_check_header(cli, NULL, b, l);
}
return 0;
}
char *gbox_username(struct s_client *client)
{
if(!client) { return "anonymous"; }
if(client->reader)
if(client->reader->r_usr[0])
{ return client->reader->r_usr; }
return "anonymous";
}
static int8_t gbox_disconnect_double_peers(struct s_client *cli)
{
struct s_client *cl;
cs_writelock(__func__, &clientlist_lock);
for(cl = first_client; cl; cl = cl->next)
{
if (cl->typ == 'c' && cl->gbox_peer_id == cli->gbox_peer_id && cl != cli)
{
cl->reader = NULL;
cl->gbox = NULL;
cs_log_dbg(D_READER, "disconnected double client %s",username(cl));
cs_disconnect_client(cl);
}
}
cs_writeunlock(__func__, &clientlist_lock);
return 0;
}
static int8_t gbox_auth_client(struct s_client *cli, uint32_t gbox_password)
{
if (!cli) { return -1; }
uint16_t gbox_id = gbox_convert_password_to_id(gbox_password);
struct s_client *cl = get_gbox_proxy(gbox_id);
if(cl->typ == 'p' && cl->gbox && cl->reader)
{
struct gbox_peer *peer = cl->gbox;
struct s_auth *account = get_account_by_name(gbox_username(cl));
if ((peer->gbox.password == gbox_password) && account)
{
cli->crypted = 1; //display as crypted
cli->gbox = cl->gbox; //point to the same gbox as proxy
cli->reader = cl->reader; //point to the same reader as proxy
cli->gbox_peer_id = cl->gbox_peer_id; //signal authenticated
gbox_disconnect_double_peers(cli);
cs_auth_client(cli, account, NULL);
cli->account = account;
cli->grp = account->grp;
cli->lastecm = time(NULL);
peer->my_user = cli;
return 0;
}
}
return -1;
}
static void gbox_server_init(struct s_client *cl)
{
if(!cl->init_done)
{
if(IP_ISSET(cl->ip))
{ cs_log("new connection from %s", cs_inet_ntoa(cl->ip)); }
//We cannot authenticate here, because we don't know gbox pw
cl->gbox_peer_id = NO_GBOX_ID;
cl->init_done = 1;
start_sms_sender();
}
return;
}
static uint16_t gbox_decode_cmd(uchar *buf)
{
return buf[0] << 8 | buf[1];
}
int8_t gbox_message_header(uchar *buf, uint16_t cmd, uint32_t peer_password, uint32_t local_password)
{
if (!buf) { return -1; }
i2b_buf(2, cmd, buf);
if (cmd == MSG_GSMS_1) { return 0; }
i2b_buf(4, peer_password, buf + 2);
if (cmd == MSG_CW) { return 0; }
i2b_buf(4, local_password, buf + 6);
return 0;
}
//returns number of cards in a hello packet or -1 in case of error
int16_t read_cards_from_hello(uint8_t *ptr, uint8_t *len, CAIDTAB *ctab, uint8_t maxdist, struct gbox_peer *peer)
{
uint8_t *current_ptr = 0;
uint32_t caprovid;
int16_t ncards_in_msg = 0;
while(ptr < len)
{
caprovid = ptr[0] << 24 | ptr[1] << 16 | ptr[2] << 8 | ptr[3];
ncards_in_msg += ptr[4];
//caid check
if(chk_ctab(gbox_get_caid(caprovid), ctab))
{
current_ptr = ptr;
ptr += 5;
// for all cards of current caid/provid,
while (ptr < current_ptr + 5 + current_ptr[4] * 4)
{
if ((ptr[1] & 0xf) <= maxdist)
{ gbox_add_card(ptr[2] << 8 | ptr[3], caprovid, ptr[0], ptr[1] >> 4, ptr[1] & 0xf, GBOX_CARD_TYPE_GBOX, peer); }
ptr += 4; //next card
} // end while cards for provider
}
else
{ ptr += 5 + ptr[4] * 4; } //skip cards because caid
} // end while < len
return ncards_in_msg;
}
//returns 1 if checkcode changed / 0 if not
static int32_t gbox_checkcode_recv(struct s_client *cli, uchar *checkcode)
{
struct gbox_peer *peer = cli->gbox;
char tmp[14];
if(memcmp(peer->checkcode, checkcode, 7))
{
memcpy(peer->checkcode, checkcode, 7);
cs_log_dbg(D_READER, "-> new checkcode=%s", cs_hexdump(0, peer->checkcode, 14, tmp, sizeof(tmp)));
return 1;
}
return 0;
}
static void gbox_send_checkcode(struct s_client *cli)
{
struct gbox_peer *peer = cli->gbox;
uchar outbuf[20];
gbox_message_header(outbuf, MSG_CHECKCODE, peer->gbox.password, local_gbox.password);
memcpy(outbuf + 10, gbox_get_checkcode(), 7);
gbox_send(cli, outbuf, 17);
}
int32_t gbox_cmd_hello(struct s_client *cli, uchar *data, int32_t n)
{
if (!cli || !cli->gbox || !cli->reader || !data) { return -1; }
struct gbox_peer *peer = cli->gbox;
int16_t cards_number = 0;
int32_t payload_len = n;
int32_t hostname_len = 0;
int32_t footer_len = 0;
uint8_t *ptr = 0;
if(!(gbox_decode_cmd(data) == MSG_HELLO1))
{
gbox_decompress(data, &payload_len);
ptr = data + 12;
}
else
{ ptr = data + 11; }
cs_log_dump_dbg(D_READER, data, payload_len, "decompressed data (%d bytes):", payload_len);
if ((data[11] & 0xf) != peer->next_hello) //out of sync hellos
{
cs_log("-> out of sync hello from %s %s, expected: %02X, received: %02X"
,username(cli), cli->reader->device, peer->next_hello, data[11] & 0xf);
peer->next_hello = 0;
gbox_send_hello(cli, GBOX_STAT_HELLOL);
return 0;
}
if (!(data[11] & 0xf)) //is first packet
{
gbox_delete_cards(GBOX_DELETE_FROM_PEER, peer->gbox.id);
hostname_len = data[payload_len - 1];
footer_len = hostname_len + 2 + 7;
if(!peer->hostname || memcmp(peer->hostname, data + payload_len - 1 - hostname_len, hostname_len))
{
NULLFREE(peer->hostname);
if(!cs_malloc(&peer->hostname, hostname_len + 1))
{
return -1;
}
memcpy(peer->hostname, data + payload_len - 1 - hostname_len, hostname_len);
peer->hostname[hostname_len] = '\0';
}
gbox_checkcode_recv(cli, data + payload_len - footer_len - 1);
peer->gbox.minor_version = data[payload_len - footer_len - 1 + 7];
peer->gbox.cpu_api = data[payload_len - footer_len + 7];
peer->total_cards = 0;
}
cs_log_dbg(D_READER, "-> Hello packet no. %d received", (data[11] & 0xF) + 1);
// read cards from hello
cards_number = read_cards_from_hello(ptr, data + payload_len - footer_len - 1, &cli->reader->ctab, cli->reader->gbox_maxdist, peer);
if (cards_number < 0)
{ return -1; }
else
{ peer->total_cards += cards_number; }
if(data[11] & 0x80) //last packet
{
uchar tmpbuf[8];
memset(&tmpbuf[0], 0xff, 7);
if(data[10] == 0x01 && !memcmp(data+12,tmpbuf,7)) //good night message
{
//This is a good night / reset packet (good night data[0xA] / reset !data[0xA]
cs_log("-> Good Night from %s %s",username(cli), cli->reader->device);
write_goodnight_to_osd_file(cli);
gbox_reinit_proxy(cli);
}
else //last packet of Hello
{
peer->filtered_cards = gbox_count_peer_cards(peer->gbox.id);
if(!data[10])
{
memset(&tmpbuf[0], 0, 7);
if (data[11] == 0x80 && !memcmp(data+12,tmpbuf,7))
{
cs_log("-> HelloL in %d packets from %s (%s:%d) V2.%02X with %d cards filtered to %d cards", (data[0x0B] & 0x0f)+1, cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port, peer->gbox.minor_version, peer->total_cards, peer->filtered_cards);
gbox_peer_online(peer, GBOX_PEER_ONLINE);
}
else
{ cs_log("-> HelloS in %d packets from %s (%s:%d) V2.%02X with %d cards filtered to %d cards", (data[0x0B] & 0x0f)+1, cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port, peer->gbox.minor_version, peer->total_cards, peer->filtered_cards); }
gbox_send_hello(cli, GBOX_STAT_HELLOR);
}
else
{
cs_log("-> HelloR in %d packets from %s (%s:%d) V2.%02X with %d cards filtered to %d cards", (data[0x0B] & 0x0f)+1, cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port, peer->gbox.minor_version, peer->total_cards, peer->filtered_cards);
gbox_send_checkcode(cli);
}
if(!peer->online)
{
gbox_send_hello(cli, GBOX_STAT_HELLOS);
gbox_peer_online(peer, GBOX_PEER_ONLINE);
}
cli->reader->tcp_connected = 2; //we have card
if(!peer->filtered_cards)
{ cli->reader->card_status = NO_CARD; }
else
{ cli->reader->card_status = CARD_INSERTED; }
}
peer->next_hello = 0;
gbox_write_share_cards_info();
cli->last = time((time_t *)0); //hello is activity on proxy
}
else { peer->next_hello++; }
return 0;
}
static int8_t is_blocked_peer(uint16_t peer)
{
if (peer == NO_GBOX_ID) { return 1; }
else { return 0; }
}
static int8_t gbox_incoming_ecm(struct s_client *cli, uchar *data, int32_t n)
{
if (!cli || !cli->gbox || !data || !cli->reader) { return -1; }
struct gbox_peer *peer;
struct s_client *cl;
int32_t diffcheck = 0;
peer = cli->gbox;
if (!peer || !peer->my_user) { return -1; }
cl = peer->my_user;
if(n < 21)
{ return -1; }
// No ECMs with length < MIN_LENGTH expected
if ((((data[19] & 0x0f) << 8) | data[20]) < MIN_ECM_LENGTH) { return -1; }
// GBOX_MAX_HOPS not violated
if (data[n - 15] + 1 > GBOX_MAXHOPS) { return -1; }
// ECM must not take more hops than allowed by gbox_reshare
if (data[n - 15] + 1 > cli->reader->gbox_reshare)
{
cs_log("-> ECM took more hops than allowed from gbox_reshare. Hops stealing detected!");
return -1;
}
//Check for blocked peers
uint16_t requesting_peer = data[(((data[19] & 0x0f) << 8) | data[20]) + 21] << 8 |
data[(((data[19] & 0x0f) << 8) | data[20]) + 22];
if (is_blocked_peer(requesting_peer))
{
cs_log_dbg(D_READER, "ECM from peer %04X blocked", requesting_peer);
return -1;
}
ECM_REQUEST *er;
if(!(er = get_ecmtask())) { return -1; }
struct gbox_ecm_request_ext *ere;
if(!cs_malloc(&ere, sizeof(struct gbox_ecm_request_ext)))
{
NULLFREE(er);
return -1;
}
uchar *ecm = data + 18; //offset of ECM in gbx message
er->src_data = ere;
gbox_init_ecm_request_ext(ere);
er->gbox_ecm_id = peer->gbox.id;
if(peer->ecm_idx == 100) { peer->ecm_idx = 0; }
er->idx = peer->ecm_idx++;
er->ecmlen = SCT_LEN(ecm);
if(er->ecmlen < 3 || er->ecmlen > MAX_ECM_SIZE || er->ecmlen+18 > n)
{ NULLFREE(ere); NULLFREE(er); return -1; }
er->pid = b2i(2, data + 10);
er->srvid = b2i(2, data + 12);
if(ecm[er->ecmlen + 5] == 0x05)
{ er->caid = (ecm[er->ecmlen + 5] << 8); }
else
{ er->caid = b2i(2, ecm + er->ecmlen + 5); }
// ei->extra = data[14] << 8 | data[15];
memcpy(er->ecm, data + 18, er->ecmlen);
ere->gbox_peer = b2i(2, ecm + er->ecmlen);
ere->gbox_version = ecm[er->ecmlen + 2];
ere->gbox_unknown = ecm[er->ecmlen + 3];
ere->gbox_type = ecm[er->ecmlen + 4];
uint32_t caprovid = b2i(4, ecm + er->ecmlen + 5);
ere->gbox_mypeer = b2i(2, ecm + er->ecmlen + 10);
ere->gbox_slot = ecm[er->ecmlen + 12];
diffcheck = gbox_checkcode_recv(cl, data + n - 14);
//TODO: What do we do with our own checkcode @-7?
er->gbox_crc = gbox_get_ecmchecksum(&er->ecm[0], er->ecmlen);
ere->gbox_hops = data[n - 15] + 1;
memcpy(&ere->gbox_routing_info[0], &data[n - 15 - ere->gbox_hops + 1], ere->gbox_hops - 1);
er->caid = gbox_get_caid(caprovid);
er->prid = gbox_get_provid(caprovid);
cs_log_dbg(D_READER, "<- ECM (distance: %d) from %04X via peer (%s:%d) for SID %04X", ere->gbox_hops, ere->gbox_peer, peer->hostname, cli->port, er->srvid);
get_cw(cl, er);
//checkcode did not match gbox->peer checkcode
if(diffcheck)
{
// TODO: Send HelloS here?
// gbox->peer.hello_stat = GBOX_STAT_HELLOS;
// gbox_send_hello(cli);
}
return 0;
}
static uint32_t gbox_get_pending_time(ECM_REQUEST *er, uint16_t peer_id, uint8_t slot)
{
if (!er) { return 0; }
uint32_t ret_time = 0;
struct gbox_card_pending *pending = NULL;
LL_LOCKITER *li = ll_li_create(er->gbox_cards_pending, 0);
while ((pending = ll_li_next(li)))
{
if ((pending->id.peer == peer_id) && (pending->id.slot == slot))
{
ret_time = pending->pending_time;
break;
}
}
ll_li_destroy(li);
return ret_time;
}
static int32_t gbox_recv_chk(struct s_client *cli, uchar *dcw, int32_t *rc, uchar *data, int32_t n)
{
if(!cli || gbox_decode_cmd(data) != MSG_CW || n < 44)
{ return -1; }
int i;
uint16_t id_card = 0;
struct s_client *proxy;
if(cli->typ != 'p')
{ proxy = get_gbox_proxy(cli->gbox_peer_id); }
else
{ proxy = cli; }
if (!proxy || !proxy->reader)
{
cs_log("error, gbox_recv_chk, proxy not found");
return -1;
}
proxy->last = time((time_t *)0);
*rc = 1;
memcpy(dcw, data + 14, 16);
uint32_t crc = b2i(4, data + 30);
char tmp[32];
cs_log_dbg(D_READER, "-> cws=%s, peer=%04X, ecm_pid=%04X, sid=%04X, crc=%08X, type=%02X, dist=%01X, unkn1=%01X, unkn2=%02X, chid/0x0000/0xffff=%04X",
cs_hexdump(0, dcw, 32, tmp, sizeof(tmp)),
data[10] << 8 | data[11], data[6] << 8 | data[7], data[8] << 8 | data[9], crc, data[41], data[42] & 0x0f, data[42] >> 4, data[43], data[37] << 8 | data[38]);
struct timeb t_now;
cs_ftime(&t_now);
int64_t cw_time = GBOX_DEFAULT_CW_TIME;
for(i = 0; i < cfg.max_pending; i++)
{
if(proxy->ecmtask[i].gbox_crc == crc)
{
id_card = b2i(2, data + 10);
cw_time = comp_timeb(&t_now, &proxy->ecmtask[i].tps) - gbox_get_pending_time(&proxy->ecmtask[i], id_card, data[36]);
gbox_add_good_sid(id_card, proxy->ecmtask[i].caid, data[36], proxy->ecmtask[i].srvid, cw_time);
proxy->reader->currenthops = data[42] & 0x0f;
gbox_remove_all_bad_sids(&proxy->ecmtask[i], proxy->ecmtask[i].srvid);
if(proxy->ecmtask[i].gbox_ecm_status == GBOX_ECM_NOT_ASKED || proxy->ecmtask[i].gbox_ecm_status == GBOX_ECM_ANSWERED)
{ return -1; }
proxy->ecmtask[i].gbox_ecm_status = GBOX_ECM_ANSWERED;
proxy->ecmtask[i].gbox_ecm_id = id_card;
*rc = 1;
return proxy->ecmtask[i].idx;
}
}
//late answers from other peers,timing not possible
gbox_add_good_sid(id_card, data[34] << 8 | data[35], data[36], data[8] << 8 | data[9], GBOX_DEFAULT_CW_TIME);
cs_log_dbg(D_READER, "no task found for crc=%08x", crc);
return -1;
}
static int8_t gbox_cw_received(struct s_client *cli, uchar *data, int32_t n)
{
int32_t rc = 0, i = 0, idx = 0;
uchar dcw[16];
idx = gbox_recv_chk(cli, dcw, &rc, data, n);
if(idx < 0) { return -1; } // no dcw received
if(!idx) { idx = cli->last_idx; }
cli->reader->last_g = time((time_t *)0); // for reconnect timeout
for(i = 0; i < cfg.max_pending; i++)
{
if(cli->ecmtask[i].idx == idx)
{
cli->pending--;
casc_check_dcw(cli->reader, i, rc, dcw);
return 0;
}
}
return -1;
}
int32_t gbox_cmd_switch(struct s_client *proxy, uchar *data, int32_t n)
{
if (!data || !proxy) { return -1; }
uint16_t cmd = gbox_decode_cmd(data);
switch(cmd)
{
case MSG_BOXINFO:
cs_log("-> BOXINFO from %s",username(proxy));
gbox_send_hello(proxy, GBOX_STAT_HELLOR);
break;
case MSG_GOODBYE:
cs_log("-> goodbye message from %s",username(proxy));
//needfix what to do after Goodbye?
//suspect: we get goodbye as signal of SID not found
break;
case MSG_UNKNWN:
cs_log("-> MSG_UNKNWN 48F9 from %s", username(proxy));
break;
case MSG_GSMS_1:
if (!cfg.gsms_dis)
{
cs_log("-> MSG_GSMS_1 from %s", username(proxy));
gbox_send_gsms_ack(proxy,1);
write_gsms_msg(proxy, data +4, data[3], data[2]);
}
else
{
gsms_unavail();
}
break;
case MSG_GSMS_2:
if (!cfg.gsms_dis)
{
cs_log("-> MSG_GSMS_2 from %s", username(proxy));
gbox_send_gsms_ack(proxy,2);
write_gsms_msg(proxy, data +16, data[14], data[15]);
}
else
{
gsms_unavail();
}
break;
case MSG_GSMS_ACK_1:
if (!cfg.gsms_dis)
{
cs_log("-> MSG_GSMS_ACK_1 from %s", username(proxy));
write_gsms_ack(proxy,1);
}
else
{
gsms_unavail();
}
break;
case MSG_GSMS_ACK_2:
if (!cfg.gsms_dis)
{
cs_log("-> MSG_GSMS_ACK_2 from %s", username(proxy));
write_gsms_ack(proxy,2);
}
else
{
gsms_unavail();
}
break;
case MSG_HELLO1:
case MSG_HELLO:
if (gbox_cmd_hello(proxy, data, n) < 0)
{ return -1; }
break;
case MSG_CW:
gbox_cw_received(proxy, data, n);
break;
case MSG_CHECKCODE:
gbox_checkcode_recv(proxy, data + 10);
break;
case MSG_ECM:
gbox_incoming_ecm(proxy, data, n);
break;
default:
cs_log("-> unknown command %04X received from %s", cmd, username(proxy));
cs_log_dump_dbg(D_READER, data, n, "unknown data received (%d bytes):", n);
} // end switch
if ((time(NULL) - last_stats_written) > STATS_WRITE_TIME)
{
gbox_write_stats();
last_stats_written = time(NULL);
}
return 0;
}
static void gbox_local_cards(struct s_reader *reader, TUNTAB *ttab)
{
int32_t i;
uint32_t prid = 0;
int8_t slot = 0;
#ifdef MODULE_CCCAM
LL_ITER it, it2;
struct cc_card *card = NULL;
struct cc_data *cc;
uint32_t checksum = 0;
uint16_t cc_peer_id = 0;
struct cc_provider *provider;
uint8_t *node1 = NULL;
uint8_t min_reshare = 0;
gbox_delete_cards(GBOX_DELETE_WITH_TYPE, GBOX_CARD_TYPE_CCCAM);
#endif
gbox_delete_cards(GBOX_DELETE_WITH_ID, local_gbox.id);
struct s_client *cl;
cs_readlock(__func__, &clientlist_lock);
for(cl = first_client; cl; cl = cl->next)
{
if(cl->typ == 'r' && cl->reader && cl->reader->card_status == 2)
{
slot = gbox_next_free_slot(local_gbox.id);
//SECA, Viaccess and Cryptoworks have multiple providers
if(caid_is_seca(cl->reader->caid) || caid_is_viaccess(cl->reader->caid) || caid_is_cryptoworks(cl->reader->caid))
{
for(i = 0; i < cl->reader->nprov; i++)
{
prid = cl->reader->prid[i][1] << 16 |
cl->reader->prid[i][2] << 8 | cl->reader->prid[i][3];
gbox_add_card(local_gbox.id, gbox_get_caprovid(cl->reader->caid, prid), slot, reader->gbox_reshare, 0, GBOX_CARD_TYPE_LOCAL, NULL);
}
}
else
{
gbox_add_card(local_gbox.id, gbox_get_caprovid(cl->reader->caid, 0), slot, reader->gbox_reshare, 0, GBOX_CARD_TYPE_LOCAL, NULL);
//Check for Betatunnel on gbox account in oscam.user
if (chk_is_betatunnel_caid(cl->reader->caid) == 1 && ttab->ttdata && cl->reader->caid == ttab->ttdata[0].bt_caidto)
{
//For now only first entry in tunnel tab. No sense in iteration?
//Add betatunnel card to transmitted list
gbox_add_card(local_gbox.id, gbox_get_caprovid(ttab->ttdata[0].bt_caidfrom, 0), slot, reader->gbox_reshare, 0, GBOX_CARD_TYPE_BETUN, NULL);
cs_log_dbg(D_READER, "gbox created betatunnel card for caid: %04X->%04X", ttab->ttdata[0].bt_caidfrom, cl->reader->caid);