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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 "ncam-failban.h"
#include "ncam-client.h"
#include "ncam-ecm.h"
#include "ncam-lock.h"
#include "ncam-net.h"
#include "ncam-chk.h"
#include "ncam-string.h"
#include "ncam-time.h"
#include "ncam-reader.h"
#include "ncam-files.h"
#include "module-gbox-remm.h"
#include "module-dvbapi.h"
static struct gbox_data local_gbox;
static int8_t local_gbox_initialized = 0;
static uint8_t local_cards_initialized = 0;
static time_t last_stats_written;
uint8_t local_gbx_rev = 0x20;
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_cpu_api (void)
{
return(cfg.gbox_my_cpu_api);
}
static void write_attack_file (struct s_client *cli, uint8_t txt_id, uint16_t rcvd_id)
{
if (cfg.dis_attack_txt) {return;}
char tsbuf[28];
time_t walltime = cs_time();
cs_ctime_r(&walltime, tsbuf);
char *fext= FILE_ATTACK_INFO;
char *fname = get_gbox_tmp_fname(fext);
FILE *fhandle = fopen(fname, "a");
if(!fhandle)
{
cs_log("Couldn't open %s: %s", fname, strerror(errno));
return;
}
if(txt_id == GBOX_ATTACK_LOCAL_PW)
{
fprintf(fhandle, "ATTACK ALERT FROM %04X %s - peer sends wrong local password - %s",
rcvd_id, cs_inet_ntoa(cli->ip), tsbuf);
}
if(txt_id == GBOX_ATTACK_PEER_IGNORE)
{
fprintf(fhandle, "ATTACK ALERT FROM %04X %s - peer is ignored - %s",
rcvd_id, cs_inet_ntoa(cli->ip), tsbuf);
}
if(txt_id == GBOX_ATTACK_PEER_PW)
{
fprintf(fhandle, "ATTACK ALERT FROM %04X %s - peer sends unknown peer password - %s",
rcvd_id, cs_inet_ntoa(cli->ip), tsbuf);
}
if(txt_id == GBOX_ATTACK_AUTH_FAIL)
{
fprintf(fhandle, "ATTACK ALERT FROM %04X %s - authentification failed - %s",
rcvd_id, cs_inet_ntoa(cli->ip), tsbuf);
}
if(txt_id == GBOX_ATTACK_ECM_BLOCKED)
{
fprintf(fhandle, "ATTACK ALERT FROM %04X %s - ECM is blocked - %s",
rcvd_id, cs_inet_ntoa(cli->ip), tsbuf);
}
if(txt_id == GBOX_ATTACK_REMM_REQ_BLOCKED)
{
fprintf(fhandle, "ATTACK ALERT FROM %04X %s - unaccepted peer sent REMM REQ - %s",
rcvd_id, cs_inet_ntoa(cli->ip), tsbuf);
}
fclose(fhandle);
return;
}
void write_msg_info(struct s_client *cli, uint8_t msg_id, uint8_t txt_id, uint16_t misc)
{
if (msg_id == MSGID_GSMS && misc == 0x31) {return;}
char *fext= FILE_MSG_INFO;
char *fname = get_gbox_tmp_fname(fext);
if (file_exists(fname))
{
char buf[120];
memset(buf, 0, sizeof(buf));
if (msg_id == MSGID_ATTACK)
{
snprintf(buf, sizeof(buf), "%s %d %04X %d %s %d",
fname, msg_id, misc, 0, cs_inet_ntoa(cli->ip), txt_id);
cs_log_dbg(D_READER, "found driver %s - write msg (msg_id = %d - txt-id = %d) Attack Alert from %s %04X",
fname, msg_id, txt_id, cs_inet_ntoa(cli->ip), misc);
}
else
{
snprintf(buf, sizeof(buf), "%.24s %d %.24s %.24s %s %d",
fname, msg_id, username(cli), cli->reader->device, cs_inet_ntoa(cli->ip), misc);
cs_log_dbg(D_READER, "found driver %s - write msg (id = %d) related to %s %s",
fname, msg_id, 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 handle_attack(struct s_client *cli, uint8_t txt_id, uint16_t rcvd_id)
{
write_attack_file(cli, txt_id, rcvd_id);
write_msg_info(cli, MSGID_ATTACK, txt_id, rcvd_id);
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);
if (!peer->onlinestat)
{
peer->onlinestat = 1;
cs_log("comeONLINE: %s %s boxid: %04X v2.%02X cards:%d", cl->reader->device,
cs_inet_ntoa(cl->ip), peer->gbox.id, peer->gbox.minor_version, peer->filtered_cards);
write_msg_info(cl, MSGID_COMEONLINE, 0, peer->filtered_cards);
}
}
else
{
fprintf(fhandle, "0 %s %s %04X 0.00\n", cl->reader->device, cs_inet_ntoa(cl->ip),peer->gbox.id);
if (peer->onlinestat)
{
peer->onlinestat = 0;
cs_log("goneOFFLINE: %s %s boxid: %04X",cl->reader->device, cs_inet_ntoa(cl->ip),peer->gbox.id);
write_msg_info(cl, MSGID_GONEOFFLINE, 0, 0);
}
}
}
}
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 my-id: %04X rev: %01X.%01X\n", LOCAL_GBOX_MAJOR_VERSION, cfg.gbox_my_vers, local_gbox.id, local_gbx_rev >> 4, local_gbx_rev & 0xf);
fclose(fhandle);
}
void hostname2ip(char *hostname, IN_ADDR_T *ip)
{
cs_resolve(hostname, ip, NULL, NULL);
}
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_slot = 0;
ere->gbox_version = 0;
ere->gbox_rev = 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_clear_peer(struct gbox_peer *peer)
{
if (!peer)
{
return -1;
}
peer->ecm_idx = 0;
peer->next_hello = 0;
peer->authstat = 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_clear_peer(peer);
if (!proxy->reader)
{
return -1;
}
proxy->reader->tcp_connected = 0;
proxy->reader->card_status = CARD_NEED_INIT;
proxy->reader->last_s = proxy->reader->last_g = 0;
return 0;
}
void gbox_send(struct s_client *cli, uint8_t *buf, int32_t l)
{
struct gbox_peer *peer = cli->gbox;
cs_log_dump_dbg(D_READER, buf, l, "<- data to %s (%d bytes):", cli->reader->label, 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 to %s (%d bytes):", cli->reader->label, l);
}
void gbox_send_hello_packet(struct s_client *cli, int8_t number, uint8_t *outbuf, uint8_t *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_my_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:
if(cfg.log_hello)
{ cs_log("<- HelloL to %s", cli->reader->label); }
else
{ cs_log_dbg(D_READER,"<- HelloL to %s", cli->reader->label); }
break;
case GBOX_STAT_HELLOS:
if(cfg.log_hello)
{ cs_log("<- HelloS total cards %d to %s", nbcards, cli->reader->label); }
else
{ cs_log_dbg(D_READER,"<- HelloS total cards %d to %s", nbcards, cli->reader->label); }
break;
case GBOX_STAT_HELLOR:
if(cfg.log_hello)
{ cs_log("<- HelloR total cards %d to %s", nbcards, cli->reader->label); }
else
{ cs_log_dbg(D_READER,"<- HelloR total cards %d to %s", nbcards, cli->reader->label); }
break;
default:
if(cfg.log_hello)
{ cs_log("<- hello total cards %d to %s", nbcards, cli->reader->label); }
else
{ cs_log_dbg(D_READER,"<- hello total cards %d to %s", nbcards, cli->reader->label); }
break;
}
cs_log_dump_dbg(D_READER, outbuf, len, "<- hello to %s, (len=%d):", cli->reader->label, 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 proxy try to call 'gbox_send_hello'");
return;
}
uint16_t nbcards = 0;
uint16_t nbcards_cnt = 0;
uint8_t packet;
uint8_t buf[2048];
packet = 0;
uint8_t *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 peer try to call 'gbox_send_hello'");
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
//and cccmaxhops from account
//do not send peer cards back
if(chk_ctab(gbox_get_caid(card->caprovid), &peer->my_user->account->ctab) && (card->lvl > 0) &&
#ifdef MODULE_CCCAM
(card->dist <= peer->my_user->account->cccmaxhops) &&
#endif
(!card->origin_peer || (card->origin_peer && card->origin_peer->gbox.id != peer->gbox.id)))
{
if(card->type == GBOX_CARD_TYPE_GBOX)
{
// cs_log_dbg(D_READER,"send to peer gbox-card %04X - level=%d crd-owner=%04X", card->caprovid >> 16, card->lvl, card->id.peer);
*(++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;
}
else if(card->type == GBOX_CARD_TYPE_CCCAM)
{
if(proxy->reader->gbox_cccam_reshare < 0)
{ continue; }
else
{
if(proxy->reader->gbox_cccam_reshare > proxy->reader->gbox_reshare)
{
proxy->reader->gbox_cccam_reshare = proxy->reader->gbox_reshare;
}
// cs_log_dbg(D_READER,"send to peer %04X - ccc-card %04X - level=%d crd-owner=%04X", peer->gbox.id, card->caprovid >> 16, proxy->reader->gbox_cccam_reshare, card->id.peer);
*(++ptr) = card->caprovid >> 24;
*(++ptr) = card->caprovid >> 16;
*(++ptr) = card->caprovid >> 8;
*(++ptr) = card->caprovid & 0xff;
*(++ptr) = 1;
*(++ptr) = card->id.slot;
*(++ptr) = ((proxy->reader->gbox_cccam_reshare) << 4) + card->dist + 1;
}
}
else if(proxy->reader->gbox_reshare > 0)
{
//cs_log_dbg(D_READER,"send local crd %04X reshare=%d crd-owner=%04X", card->caprovid >> 16, proxy->reader->gbox_reshare, card->id.peer);
*(++ptr) = card->caprovid >> 24;
*(++ptr) = card->caprovid >> 16;
*(++ptr) = card->caprovid >> 8;
*(++ptr) = card->caprovid & 0xff;
*(++ptr) = 1;
*(++ptr) = card->id.slot;
*(++ptr) = ((proxy->reader->gbox_reshare - 1) << 4) + card->dist + 1;
}
else
{
cs_log_dbg(D_READER,"WARNING: local card %04X will NOT be shared - !reshare=%d! crd-owner=%04X", card->caprovid >> 16, proxy->reader->gbox_reshare, card->id.peer);
continue;
}
*(++ptr) = card->id.peer >> 8;
*(++ptr) = card->id.peer & 0xff;
nbcards++;
nbcards_cnt++;
if(nbcards_cnt == MAX_GBOX_CARDS )
{
cs_log("gbox_send_hello - max cards send to peer reached");
break;
}
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));
}
}
} // while cards exist
gbox_cards_iter_destroy(gci);
} // end if cards exists
gbox_send_hello_packet(proxy, 0x80 | packet, buf, ptr, nbcards, hello_stat); //last packet has bit 0x80 set
return;
}
void gbox_reconnect_peer(struct s_client *cl)
{
struct gbox_peer *peer = cl->gbox;
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);
cs_log("reconnect %s peer: %04X", username(cl), peer->gbox.id);
gbox_send_hello(cl, GBOX_STAT_HELLOL);
return;
}
void restart_gbox_peer(char *rdrlabel, uint8_t allrdr, 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' &&
((rdrlabel && !strcmp(rdrlabel, cl->reader->label)) ||
allrdr || (gbox_id && cl->gbox_peer_id == gbox_id)))
{ gbox_reconnect_peer(cl); }
}
cs_readunlock(__func__, &clientlist_lock);
}
static void *gbox_server(struct s_client *cli, uint8_t *UNUSED(b), int32_t l)
{
if(l > 0)
{
cs_log("gbox_server %s/%d", cli->reader->label, cli->port);
//gbox_check_header_recvd(cli, NULL, b, l);
}
return NULL;
}
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_log("disconnected double client %s - %s",username(cl), cs_inet_ntoa(cli->ip));
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)
{
cs_writelock(__func__, &clientlist_lock);
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();
}
cs_writeunlock(__func__, &clientlist_lock);
return;
}
static uint16_t gbox_decode_cmd(uint8_t *buf)
{
return buf[0] << 8 | buf[1];
}
int8_t gbox_message_header(uint8_t *buf, uint16_t cmd, uint32_t peer_password, uint32_t local_password)
{
if (!buf) { return -1; }
i2b_buf(2, cmd, buf);
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, uint8_t *checkcode)
{
struct gbox_peer *peer = cli->gbox;
if(memcmp(peer->checkcode, checkcode, 7))
{
memcpy(peer->checkcode, checkcode, 7);
cs_log_dump_dbg(D_READER, checkcode, 7, "-> new checkcode from %s:", cli->reader->label);
return 1;
}
return 0;
}
static void disable_remm(struct s_client *cli)
{
if (cli->reader->blockemm & 0x80) // if remm marker bit set
{
struct gbox_peer *peer = cli->gbox;
cs_log("-> Disable REMM Req for %04X %s %s", peer->gbox.id, cli->reader->label, cli->reader->device);
cli->reader->gbox_remm_peer = 0;
cli->reader->blockemm = 15;
write_msg_info(cli, MSGID_REMM, 0, 0);
}
return;
}
static void gbox_revd_goodnight(struct s_client *cli)
{
cs_log("-> Good Night received from %s %s", cli->reader->label, cli->reader->device);
disable_remm(cli);
write_msg_info(cli, MSGID_GOODNIGHT, 0, 0);
gbox_reinit_proxy(cli);
return;
}
static void gbox_send_checkcode(struct s_client *cli)
{
struct gbox_peer *peer = cli->gbox;
uint8_t outbuf[20];
cs_log_dump_dbg(D_READER, gbox_get_my_checkcode(), 7, "<- my checkcode to %s:", cli->reader->label);
gbox_message_header(outbuf, MSG_CHECKCODE, peer->gbox.password, local_gbox.password);
memcpy(outbuf + 10, gbox_get_my_checkcode(), 7);
gbox_send(cli, outbuf, 17);
}
int32_t gbox_cmd_hello_rcvd(struct s_client *cli, uint8_t *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);
cs_log_dump_dbg(D_READER, data, payload_len, "-> data decompressed (%d bytes):", payload_len);
ptr = data + 12;
}
else
{
ptr = data + 11;
cs_log_dump_dbg(D_READER, data, payload_len, "decrypted 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 from %s %s",
(data[11] & 0xF) + 1, username(cli), cli->reader->device);
// 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
{
uint8_t tmpbuf[8];
memset(&tmpbuf[0], 0xff, 7);
if(data[10] == 0x01 && !memcmp(data + 12, tmpbuf, 7)) // good night message
{
gbox_revd_goodnight(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))
{
gbox_peer_online(peer, GBOX_PEER_ONLINE);
if(cfg.log_hello)
{ cs_log("-> HelloL from %s (%s:%d) v2.%02X", cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port, peer->gbox.minor_version);}
else
{ cs_log_dbg(D_READER,"-> HelloL from %s (%s:%d) v2.%02X", cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port, peer->gbox.minor_version);}
}
else
{
if(cfg.log_hello)
{ cs_log("-> HelloS from %s (%s:%d) v2.%02X with %d cards", cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port, peer->gbox.minor_version, peer->filtered_cards); }
else
{ cs_log_dbg(D_READER,"-> 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
{
if (cfg.log_hello)
{ cs_log("-> HelloR from %s (%s:%d) v2.%02X with %d cards", cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port, peer->gbox.minor_version, peer->filtered_cards); }
else
{ cs_log_dbg(D_READER,"-> 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 (cfg.log_hello)
{ cs_log("<- HelloC my checkcode to %s (%s:%d)", cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port);}
else
{ cs_log_dbg(D_READER,"<- HelloC my checkcode to %s (%s:%d)", cli->reader->label, cs_inet_ntoa(cli->ip), cli->reader->r_port);}
}
if(!peer->online)
{
gbox_send_hello(cli, GBOX_STAT_HELLOS);
gbox_peer_online(peer, GBOX_PEER_ONLINE);
}
cli->reader->tcp_connected = CARD_INSERTED;
if(!peer->filtered_cards)
{
cli->reader->card_status = NO_CARD;
}
else
{
cli->reader->card_status = CARD_INSERTED;
}
}
peer->next_hello = 0;
gbox_write_peer_onl();
gbox_write_share_cards_info();
cli->last = time((time_t *)0); // hello is activity on proxy
}
else
{
peer->next_hello++;
}
return 0;
}
uint8_t get_peer_onl_status(uint16_t peer_id)
{
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->gbox.id == peer_id) && peer->online)
{
cs_readunlock(__func__, &clientlist_lock);
return 1;
}
}
}
cs_readunlock(__func__, &clientlist_lock);
return 0;
}
static int8_t is_blocked_peer(uint16_t peer_id)
{
int i;
if (cfg.gbox_block_ecm_num > 0)
{
for (i = 0; i < cfg.gbox_block_ecm_num; i++)
{
if (cfg.gbox_block_ecm[i] == peer_id)
{
return 1;
}
}
}
return 0;
}
static int8_t check_peer_ignored(uint16_t peer_id)
{
int i;
if (cfg.gbox_ignored_peer_num > 0)
{
for (i = 0; i < cfg.gbox_ignored_peer_num; i++)
{
if (cfg.gbox_ignored_peer[i] == peer_id)
{
return 1;
}
}
}
return 0;
}
static int8_t validate_peerpass(uint32_t rcvd_peer_pw)
{
struct s_client *cli;
cs_readlock(__func__, &clientlist_lock);
for(cli = first_client; cli; cli = cli->next)
{
if(cli->gbox && cli->typ == 'p')
{
struct s_reader *rdr = cli->reader;
if (rcvd_peer_pw == a2i(rdr->r_pwd, 4))
{
cs_readunlock(__func__, &clientlist_lock);
return 1;
} // valid peerpass
}
}
cs_readunlock(__func__, &clientlist_lock);
return 0;
}
static int8_t gbox_incoming_ecm(struct s_client *cli, uint8_t *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)