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module-cccshare.c
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module-cccshare.c
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#define MODULE_LOG_PREFIX "cccam"
#include "globals.h"
#if defined(MODULE_CCCAM) && defined(MODULE_CCCSHARE)
#include "module-cccam.h"
#include "module-cccam-data.h"
#include "module-cccshare.h"
#include "oscam-chk.h"
#include "oscam-client.h"
#include "oscam-lock.h"
#include "oscam-string.h"
#include "oscam-time.h"
#include "oscam-work.h"
extern uint32_t cfg_sidtab_generation;
static uint32_t cc_share_id = 0x64;
static LLIST *reported_carddatas_list[CAID_KEY];
static CS_MUTEX_LOCK cc_shares_lock;
static int32_t card_added_count;
static int32_t card_removed_count;
static int32_t card_dup_count;
static pthread_t share_updater_thread;
static bool share_updater_thread_active;
int32_t card_valid_for_client(struct s_client *cl, struct cc_card *card);
LLIST *get_cardlist(uint16_t caid, LLIST **list)
{
caid = (caid >> 8) % CAID_KEY;
if(!list[caid])
{ list[caid] = ll_create("card_list"); }
return list[caid];
}
LLIST **get_and_lock_sharelist(void)
{
cs_readlock(__func__, &cc_shares_lock);
return reported_carddatas_list;
}
void unlock_sharelist(void)
{
cs_readunlock(__func__, &cc_shares_lock);
}
void add_good_sids(struct s_sidtab *ptr, struct cc_card *card)
{
int32_t l;
for(l = 0; l < ptr->num_srvid; l++)
{
struct cc_srvid *srvid;
if(!cs_malloc(&srvid, sizeof(struct cc_srvid)))
{ return; }
srvid->sid = ptr->srvid[l];
srvid->chid = 0;
srvid->ecmlen = 0; //0=undefined, also not used with "O" CCcam
if(!ll_contains_data(card->goodsids, srvid, sizeof(struct cc_srvid)))
{ ll_append(card->goodsids, srvid); }
else { NULLFREE(srvid);}
}
}
void add_bad_sids(struct s_sidtab *ptr, struct cc_card *card)
{
int32_t l;
for(l = 0; l < ptr->num_srvid; l++)
{
struct cc_srvid_block *srvid;
if(!cs_malloc(&srvid, sizeof(struct cc_srvid_block)))
{ return; }
srvid->sid = ptr->srvid[l];
srvid->chid = 0;
srvid->ecmlen = 0; //0=undefined, also not used with "O" CCcam
srvid->blocked_till = 0;
if(!ll_contains_data(card->badsids, srvid, sizeof(struct cc_srvid_block)))
{ ll_append(card->badsids, srvid); }
else { NULLFREE(srvid); }
}
}
void add_good_bad_sids_by_rdr(struct s_reader *rdr, struct cc_card *card)
{
struct s_sidtab *ptr;
int32_t n, i;
for(n = 0, ptr = cfg.sidtab; ptr; ptr = ptr->next, n++)
{
if(rdr->sidtabs.ok & ((SIDTABBITS)1 << n))
{
for(i = 0; i < ptr->num_caid; i++)
{
if(ptr->caid[i] == card->caid)
{ add_good_sids(ptr, card); }
}
}
else if(rdr->sidtabs.no & ((SIDTABBITS)1 << n))
{
for(i = 0; i < ptr->num_caid; i++)
{
if(ptr->caid[i] == card->caid)
{ add_bad_sids(ptr, card); }
}
}
}
}
int32_t can_use_ext(struct cc_card *card)
{
if(card->card_type == CT_REMOTECARD)
{ return card->is_ext; }
if(card->sidtab)
{ return (card->sidtab->num_srvid > 0); }
else
{ return ll_count(card->goodsids) || ll_count(card->badsids); }
return 0;
}
int32_t write_card(struct cc_data *cc, uint8_t *buf, struct cc_card *card, int32_t add_own, int32_t ext, int32_t au_allowed, struct s_client *cl)
{
memset(buf, 0, CC_MAXMSGSIZE);
buf[0] = card->id >> 24;
buf[1] = card->id >> 16;
buf[2] = card->id >> 8;
buf[3] = card->id & 0xff;
buf[4] = card->remote_id >> 24;
buf[5] = card->remote_id >> 16;
buf[6] = card->remote_id >> 8;
buf[7] = card->remote_id & 0xFF;
buf[8] = card->caid >> 8;
buf[9] = card->caid & 0xff;
buf[10] = card->hop;
buf[11] = card->reshare;
if(au_allowed)
{ memcpy(buf + 12, card->hexserial, 8); }
//with cccam 2.2.0 we have assigned and rejected sids:
int32_t ofs = ext ? 23 : 21;
//write providers:
LL_ITER it = ll_iter_create(card->providers);
struct cc_provider *prov;
while((prov = ll_iter_next(&it)))
{
uint32_t prid = prov->prov;
buf[ofs + 0] = prid >> 16;
buf[ofs + 1] = prid >> 8;
buf[ofs + 2] = prid & 0xFF;
if(au_allowed)
{ memcpy(buf + ofs + 3, prov->sa, 4); }
buf[20]++;
ofs += 7;
}
//write sids only if cccam 2.2.x:
if(ext)
{
if(card->sidtab)
{
//good sids:
struct s_sidtab *ptr = card->sidtab;
int32_t l;
for(l = 0; l < ptr->num_srvid; l++)
{
buf[ofs + 0] = ptr->srvid[l] >> 8;
buf[ofs + 1] = ptr->srvid[l] & 0xFF;
ofs += 2;
buf[21]++; //nassign
if(buf[21] >= 240)
{ break; }
}
//bad sids:
int32_t n;
for(n = 0, ptr = cfg.sidtab; ptr; ptr = ptr->next, n++)
{
if(cl->sidtabs.no & ((SIDTABBITS)1 << n) || card->sidtabno & ((SIDTABBITS)1 << n))
{
int32_t m;
int32_t ok_caid = 0;
for(m = 0; m < ptr->num_caid; m++) //search bad sids for this caid:
{
if(ptr->caid[m] == card->caid)
{
ok_caid = 1;
break;
}
}
if(ok_caid)
{
for(l = 0; l < ptr->num_srvid; l++)
{
buf[ofs + 0] = ptr->srvid[l] >> 8;
buf[ofs + 1] = ptr->srvid[l] & 0xFF;
ofs += 2;
buf[22]++; //nreject
if(buf[22] >= 240)
{ break; }
}
}
}
if(buf[22] >= 240)
{ break; }
}
}
else
{
//assigned sids:
it = ll_iter_create(card->goodsids);
struct cc_srvid *srvid;
struct cc_srvid_block *srvidblock;
while((srvid = ll_iter_next(&it)))
{
buf[ofs + 0] = srvid->sid >> 8;
buf[ofs + 1] = srvid->sid & 0xFF;
ofs += 2;
buf[21]++; //nassign
if(buf[21] >= 200)
{ break; }
}
//reject sids:
it = ll_iter_create(card->badsids);
while((srvidblock = ll_iter_next(&it)))
{
if(srvidblock->blocked_till > 0)
{
continue;
}
buf[ofs + 0] = srvidblock->sid >> 8;
buf[ofs + 1] = srvidblock->sid & 0xFF;
ofs += 2;
buf[22]++; //nreject
if(buf[22] >= 200)
{ break; }
}
}
}
//write remote nodes
int32_t nremote_ofs = ofs;
ofs++;
it = ll_iter_create(card->remote_nodes);
uint8_t *remote_node;
while((remote_node = ll_iter_next(&it)))
{
memcpy(buf + ofs, remote_node, 8);
ofs += 8;
buf[nremote_ofs]++;
}
if(add_own)
{
memcpy(buf + ofs, cc->node_id, 8);
ofs += 8;
buf[nremote_ofs]++;
}
return ofs;
}
static int32_t is_client_au_allowed(struct cc_card *card, struct s_client *cl)
{
if(!card || !card->origin_reader)
{
return 0;
}
if(!cl || !cl->aureader_list || !ll_count(cl->aureader_list))
{
return 0;
}
struct s_reader *rdr = NULL;
LL_ITER itr = ll_iter_create(cl->aureader_list);
while((rdr = ll_iter_next(&itr)))
{
if(rdr == card->origin_reader)
{
return 1;
}
}
return 0;
}
static int32_t send_card_to_client(struct cc_card *card, struct s_client *cl)
{
uint8_t buf[CC_MAXMSGSIZE];
if(!card_valid_for_client(cl, card))
{ return 0; }
int8_t usr_reshare = cl->account->cccreshare;
if(usr_reshare == -1)
{ usr_reshare = cfg.cc_reshare; }
int8_t ignorereshare = cl->account->cccignorereshare;
if(ignorereshare == -1)
{ ignorereshare = cfg.cc_ignore_reshare; }
int8_t reader_reshare = card->origin_reader ? card->rdr_reshare : usr_reshare;
if(reader_reshare == -1)
{ reader_reshare = cfg.cc_reshare; }
int8_t reshare = (reader_reshare < usr_reshare) ? reader_reshare : usr_reshare;
int8_t new_reshare;
if(card->card_type == CT_CARD_BY_SERVICE_USER)
{
new_reshare = usr_reshare;
}
else if(ignorereshare)
{
new_reshare = reshare;
}
else
{
new_reshare = card->reshare;
if(card->card_type == CT_REMOTECARD)
{ new_reshare--; }
if(new_reshare > reshare)
{ new_reshare = reshare; }
}
if(new_reshare < 0)
{ return 0; }
if(!card->id)
{ card->id = cc_share_id++; }
struct cc_data *cc = cl->cc;
int32_t is_ext = cc->cccam220 && can_use_ext(card);
int32_t len = write_card(cc, buf, card, 1, is_ext, is_client_au_allowed(card, cl), cl);
//buf[10] = card->hop-1;
buf[11] = new_reshare;
struct s_clientmsg *clientmsg;
if(cs_malloc(&clientmsg, sizeof(struct s_clientmsg)))
{
memcpy(clientmsg->msg, buf, len);
clientmsg->len = len;
clientmsg->cmd = is_ext ? MSG_NEW_CARD_SIDINFO : MSG_NEW_CARD;
add_job(cl, ACTION_CLIENT_SEND_MSG, clientmsg, sizeof(struct s_clientmsg));
}
return 1;
}
int32_t send_card_to_all_clients(struct cc_card *card)
{
int32_t count = 0;
struct s_client *cl;
cs_readlock(__func__, &clientlist_lock);
for(cl = first_client; cl; cl = cl->next)
{
if(cl->cc && cl->typ == 'c' && !cl->kill && get_module(cl)->num == R_CCCAM) //CCCam-Client!
{
count += send_card_to_client(card, cl);
}
}
cs_readunlock(__func__, &clientlist_lock);
return count;
}
void send_remove_card_to_clients(struct cc_card *card)
{
if(!card || !card->id)
{ return; }
uint8_t buf[4];
buf[0] = card->id >> 24;
buf[1] = card->id >> 16;
buf[2] = card->id >> 8;
buf[3] = card->id & 0xFF;
struct s_client *cl;
struct s_clientmsg *clientmsg;
cs_readlock(__func__, &clientlist_lock);
for(cl = first_client; cl; cl = cl->next)
{
struct cc_data *cc = cl->cc;
if(cc && cl->typ == 'c' && !cl->kill && get_module(cl)->num == R_CCCAM) //CCCam-Client!
{
if(card_valid_for_client(cl, card))
{
if(cs_malloc(&clientmsg, sizeof(struct s_clientmsg)))
{
memcpy(clientmsg->msg, buf, sizeof(buf));
clientmsg->len = sizeof(buf);
clientmsg->cmd = MSG_CARD_REMOVED;
add_job(cl, ACTION_CLIENT_SEND_MSG, clientmsg, sizeof(struct s_clientmsg));
}
}
}
}
cs_readunlock(__func__, &clientlist_lock);
}
/**
* if idents defined on an cccam reader, the cards caid+provider are checked.
* return 1 a) if no ident defined b) card is in identlist
* 0 if card is not in identlist
*
* a card is in the identlist, if the cards caid is matching and mininum a provider is matching
**/
int32_t chk_ident(FTAB *ftab, struct cc_card *card)
{
int32_t j, k;
int32_t res = 1;
if(ftab && ftab->filts)
{
for(j = 0; j < ftab->nfilts; j++)
{
if(ftab->filts[j].caid)
{
res = 0;
if(ftab->filts[j].caid == card->caid) //caid matches!
{
int32_t nprids = ftab->filts[j].nprids;
if(!nprids) // No Provider ->Ok
{ return 1; }
LL_ITER it = ll_iter_create(card->providers);
struct cc_provider *prov;
while((prov = ll_iter_next(&it)))
{
for(k = 0; k < nprids; k++)
{
uint32_t prid = ftab->filts[j].prids[k];
if(prid == prov->prov) //Provider matches
{
return 1;
}
}
}
}
}
}
}
return res;
}
int32_t cc_clear_reported_carddata(LLIST *reported_carddatas, LLIST *except,
int32_t send_removed)
{
int32_t i = 0;
LL_ITER it = ll_iter_create(reported_carddatas);
struct cc_card *card;
while((card = ll_iter_next(&it)))
{
struct cc_card *card2 = NULL;
if(except)
{
LL_ITER it2 = ll_iter_create(except);
while((card2 = ll_iter_next(&it2)))
{
if(card == card2)
{ break; }
}
}
if(!card2 && ll_iter_remove(&it)) //check result of ll_iter_remove, because another thread could removed it
{
if(send_removed)
{
cs_log_dbg(D_TRACE, "s-card removed: id %8X remoteid %8X caid %4X hop %d reshare %d originid %8X cardtype %d",
card->id, card->remote_id, card->caid, card->hop, card->reshare, card->origin_id, card->card_type);
send_remove_card_to_clients(card);
}
cc_free_card(card);
i++;
}
}
return i;
}
int32_t cc_free_reported_carddata(LLIST *reported_carddatas, LLIST *except,
int32_t send_removed)
{
int32_t i = 0;
if(reported_carddatas)
{
i = cc_clear_reported_carddata(reported_carddatas, except, send_removed);
ll_destroy(&reported_carddatas);
}
return i;
}
int32_t card_valid_for_client(struct s_client *cl, struct cc_card *card)
{
//Check group:
if(card->grp && !(card->grp & cl->grp))
{ return 0; }
//Check idents:
if(!chk_ident(&cl->ftab, card))
{ return 0; }
//Check caids:
if(!chk_ctab(card->caid, &cl->ctab))
{ return 0; }
//Check reshare
if(card->card_type == CT_REMOTECARD)
{
int8_t ignorereshare = cl->account->cccignorereshare;
if(ignorereshare == -1) { ignorereshare = cfg.cc_ignore_reshare; }
if(!ignorereshare && !card->reshare)
{ return 0; }
}
//Check account maxhops:
if(cl->account->cccmaxhops < card->hop)
{ return 0; }
//Check remote node id, if card is from there, ignore it!
LL_ITER it = ll_iter_create(card->remote_nodes);
uint8_t *node;
struct cc_data *cc = cl->cc;
while((node = ll_iter_next(&it)))
{
if(!memcmp(node, cc->peer_node_id, 8))
{
return 0;
}
}
//Check Services:
if(ll_count(card->providers))
{
it = ll_iter_create(card->providers);
struct cc_provider *prov;
int8_t found = 0;
while((prov = ll_iter_next(&it)))
{
uint32_t prid = prov->prov;
if(chk_srvid_by_caid_prov(cl, card->caid, prid))
{
found = 1;
break;
}
}
if(!found) { return 0; }
}
else
{
if(!chk_srvid_by_caid_prov(cl, card->caid, 0))
{ return 0; }
}
//Check Card created by Service:
if(card->sidtab)
{
struct s_sidtab *ptr;
int32_t j;
int32_t ok = !cl->sidtabs.ok && !cl->sidtabs.no; //default valid if no positive services and no negative services
if(!ok)
{
if(!cl->sidtabs.ok) // no positive services, so ok by default if no negative found
{ ok = 1; }
for(j = 0, ptr = cfg.sidtab; ptr; ptr = ptr->next, j++)
{
if(ptr == card->sidtab)
{
if(cl->sidtabs.no & ((SIDTABBITS)1 << j))
{ return 0; }
if(cl->sidtabs.ok & ((SIDTABBITS)1 << j))
{ ok = 1; }
break;
}
}
}
if(!ok)
{ return 0; }
}
return 1;
}
uint32_t get_reader_prid(struct s_reader *rdr, int32_t j)
{
return b2i(3, &rdr->prid[j][1]);
}
//uint32_t get_reader_prid(struct s_reader *rdr, int32_t j) {
// uint32_t prid;
// if (!is_cascading_reader(rdr)) { // Real cardreaders have 4-byte Providers
// prid = b2i(4, &rdr->prid[j][0]);
// //prid = (rdr->prid[j][0] << 24) | (rdr->prid[j][1] << 16)
// // | (rdr->prid[j][2] << 8) | (rdr->prid[j][3] & 0xFF);
// } else { // Cascading/Network-reader 3-bytes Providers
// prid = b2i(3, &rdr->prid[j][0]);
// //prid = (rdr->prid[j][0] << 16) | (rdr->prid[j][1] << 8)
// // | (rdr->prid[j][2] & 0xFF);
//
// }
// return prid;
//}
void copy_good_sids(LLIST *dst, LLIST *src)
{
LL_ITER it_src = ll_iter_create(src);
LL_ITER it_dst = ll_iter_create(dst);
struct cc_srvid *srvid_src;
struct cc_srvid *srvid_dst;
while((srvid_src = ll_iter_next(&it_src)))
{
ll_iter_reset(&it_dst);
while((srvid_dst = ll_iter_next(&it_dst)))
{
if(sid_eq(srvid_src, srvid_dst))
{ break; }
}
if(!srvid_dst)
{
if(!cs_malloc(&srvid_dst, sizeof(struct cc_srvid)))
{ break; }
memcpy(srvid_dst, srvid_src, sizeof(struct cc_srvid));
ll_iter_insert(&it_dst, srvid_dst);
}
}
}
void copy_bad_sids(LLIST *dst, LLIST *src)
{
LL_ITER it_src = ll_iter_create(src);
LL_ITER it_dst = ll_iter_create(dst);
struct cc_srvid_block *srvid_src;
struct cc_srvid_block *srvid_dst;
while((srvid_src = ll_iter_next(&it_src)))
{
ll_iter_reset(&it_dst);
while((srvid_dst = ll_iter_next(&it_dst)))
{
if(sid_eq_bb(srvid_src, srvid_dst))
{ break; }
}
if(!srvid_dst)
{
if(!cs_malloc(&srvid_dst, sizeof(struct cc_srvid_block)))
{ break; }
memcpy(srvid_dst, srvid_src, sizeof(struct cc_srvid_block));
ll_iter_insert(&it_dst, srvid_dst);
}
}
}
int32_t add_card_providers(struct cc_card *dest_card, struct cc_card *card,
int32_t copy_remote_nodes)
{
int32_t modified = 0;
//1. Copy nonexisting providers, ignore double:
struct cc_provider *prov_info;
LL_ITER it_src = ll_iter_create(card->providers);
LL_ITER it_dst = ll_iter_create(dest_card->providers);
struct cc_provider *provider;
while((provider = ll_iter_next(&it_src)))
{
ll_iter_reset(&it_dst);
while((prov_info = ll_iter_next(&it_dst)))
{
if(prov_info->prov == provider->prov)
{ break; }
}
if(!prov_info)
{
struct cc_provider *prov_new;
if(!cs_malloc(&prov_new, sizeof(struct cc_provider)))
{ break; }
memcpy(prov_new, provider, sizeof(struct cc_provider));
ll_iter_insert(&it_dst, prov_new);
modified = 1;
}
}
if(copy_remote_nodes)
{
//2. Copy nonexisting remote_nodes, ignoring existing:
it_src = ll_iter_create(card->remote_nodes);
it_dst = ll_iter_create(dest_card->remote_nodes);
uint8_t *remote_node;
uint8_t *remote_node2;
while((remote_node = ll_iter_next(&it_src)))
{
ll_iter_reset(&it_dst);
while((remote_node2 = ll_iter_next(&it_dst)))
{
if(memcmp(remote_node, remote_node2, 8) == 0)
{ break; }
}
if(!remote_node2)
{
uint8_t *remote_node_new;
if(!cs_malloc(&remote_node_new, 8))
{ break; }
memcpy(remote_node_new, remote_node, 8);
ll_iter_insert(&it_dst, remote_node_new);
modified = 1;
}
}
}
return modified;
}
#define TIMEOUT_SECONDS 3600
void set_card_timeout(struct cc_card *card)
{
card->timeout = time(NULL) + TIMEOUT_SECONDS + ((rand() & 0xff) - 128) * 2;
}
struct cc_card *create_card(struct cc_card *card)
{
struct cc_card *card2;
if(!cs_malloc(&card2, sizeof(struct cc_card)))
{ return NULL; }
if(card)
{ memcpy(card2, card, sizeof(struct cc_card)); }
else
{ memset(card2, 0, sizeof(struct cc_card)); }
card2->providers = ll_create("providers");
card2->badsids = ll_create("badsids");
card2->goodsids = ll_create("goodsids");
card2->remote_nodes = ll_create("remote_nodes");
if(card)
{
copy_good_sids(card2->goodsids, card->goodsids);
copy_bad_sids(card2->badsids, card->badsids);
card2->id = 0;
}
else
{ set_card_timeout(card2); }
return card2;
}
struct cc_card *create_card2(struct s_reader *rdr, int32_t j, uint16_t caid, uint8_t reshare)
{
struct cc_card *card = create_card(NULL);
if(!card)
{ return NULL; }
card->remote_id = (rdr ? (rdr->cc_id << 16) : 0x7F7F8000) | j;
card->caid = caid;
card->reshare = reshare;
card->origin_reader = rdr;
if(rdr)
{
card->grp = rdr->grp;
card->rdr_reshare = rdr->cc_reshare > -1 ? rdr->cc_reshare : cfg.cc_reshare; //copy reshare because reader could go offline
card->sidtabno = rdr->sidtabs.no;
card->hop = rdr->cc_hop;
}
else { card->rdr_reshare = reshare; }
return card;
}
/**
* num_same_providers checks if card1 has exactly the same providers as card2
* returns same provider count
**/
int32_t num_same_providers(struct cc_card *card1, struct cc_card *card2)
{
int32_t found = 0;
LL_ITER it1 = ll_iter_create(card1->providers);
LL_ITER it2 = ll_iter_create(card2->providers);
struct cc_provider *prov1, *prov2;
while((prov1 = ll_iter_next(&it1)))
{
ll_iter_reset(&it2);
while((prov2 = ll_iter_next(&it2)))
{
if(prov1->prov == prov2->prov)
{
found++;
break;
}
}
}
return found;
}
/**
* equal_providers checks if card1 has exactly the same providers as card2
* returns 1=equal 0=different
**/
int32_t equal_providers(struct cc_card *card1, struct cc_card *card2)
{
if(ll_count(card1->providers) != ll_count(card2->providers))
{ return 0; }
if(ll_count(card1->providers) == 0)
{ return 1; }
LL_ITER it1 = ll_iter_create(card1->providers);
LL_ITER it2 = ll_iter_create(card2->providers);
struct cc_provider *prov1, *prov2;
while((prov1 = ll_iter_next(&it1)))
{
ll_iter_reset(&it2);
while((prov2 = ll_iter_next(&it2)))
{
if(prov1->prov == prov2->prov)
{
break;
}
}
if(!prov2) { break; }
}
return (prov1 == NULL);
}
int32_t is_au_card(struct cc_card *card)
{
if(card && card->origin_reader)
{ return !card->origin_reader->audisabled && cc_UA_valid(card->hexserial); }
return 0;
}
void merge_sids(struct cc_card *carddst, struct cc_card *cardsrc)
{
LL_ITER it;
struct cc_srvid *srvid;
struct cc_srvid_block *srvidb;
int32_t goodSidCountSrc = ll_count(cardsrc->goodsids);
int32_t goodSidCountDst = ll_count(carddst->goodsids);
if(goodSidCountDst == 0)
{
// remove sid blocks good+notbad from src
it = ll_iter_create(cardsrc->goodsids);
while((srvid = ll_iter_next(&it)))
{
if(!is_sid_blocked(cardsrc, srvid))
{ remove_sid_block(carddst, srvid); }
}
}
else
{
if(goodSidCountSrc == 0)
{
// del goods from dst
ll_clear(carddst->goodsids);
// del bads from dst
ll_clear(carddst->badsids);
// add bads from src
it = ll_iter_create(cardsrc->badsids);
while((srvidb = ll_iter_next(&it)))
{
{ add_sid_block(carddst, (struct cc_srvid*)srvidb, false); }
}
}
else
{
// add good sid good+notbad from src
it = ll_iter_create(cardsrc->goodsids);
while((srvid = ll_iter_next(&it)))
{
if(!is_sid_blocked(cardsrc, srvid))
{ add_good_sid(carddst, srvid); }
}
}
}
}
/**
* Adds a new card to a cardlist.
*/
int32_t add_card_to_serverlist(LLIST *cardlist, struct cc_card *card, int8_t free_card)
{
int32_t modified = 0;
if(!card)
{ return modified; }
LL_ITER it = ll_iter_create(cardlist);
struct cc_card *card2;
//Minimize all, transmit just CAID, merge providers:
if(cfg.cc_minimize_cards == MINIMIZE_CAID && !cfg.cc_forward_origin_card)
{
while((card2 = ll_iter_next(&it)))
{
//compare caid, hexserial, cardtype and sidtab (if any):
if(same_card2(card, card2, 0))
{
//Merge cards only if resulting providercount is smaller than CS_MAXPROV
int32_t nsame, ndiff, nnew;
nsame = num_same_providers(card, card2); //count same cards
ndiff = ll_count(card->providers) - nsame; //cound different cards, this cound will be added
nnew = ndiff + ll_count(card2->providers); //new card count after add. because its limited to CS_MAXPROV, dont add it
if(nnew <= CS_MAXPROV)
{ break; }
}
}
if(!card2) //Not found->add it:
{
if(free_card) //Use this card
{
free_card = 0;
ll_iter_insert(&it, card);
}
else
{
card2 = create_card(card); //Copy card
if(!card2)
{ return modified; }
card2->hop = 0;
ll_iter_insert(&it, card2);
add_card_providers(card2, card, 1); //copy providers to new card. Copy remote nodes to new card
}
modified = 1;
}
else //found, merge providers:
{
card_dup_count++;
card2->grp |= card->grp; //add group to the card
add_card_providers(card2, card, 0); //merge all providers
ll_clear_data(card2->remote_nodes); //clear remote nodes
merge_sids(card2, card);
}
}
//Removed duplicate cards, keeping card with lower hop:
else if(cfg.cc_minimize_cards == MINIMIZE_HOPS && !cfg.cc_forward_origin_card)
{
while((card2 = ll_iter_next(&it)))
{
//compare caid, hexserial, cardtype, sidtab (if any), providers:
if(same_card2(card, card2, 0) && equal_providers(card, card2))
{
break;
}
}
if(card2 && card2->hop > card->hop) //hop is smaller, drop old card
{
ll_iter_remove(&it);
cc_free_card(card2);
card2 = NULL;
card_dup_count++;
}
if(!card2) //Not found->add it:
{
if(free_card) //use this card
{
free_card = 0;
ll_iter_insert(&it, card);
}
else
{
card2 = create_card(card); //copy card
if(!card2)
{ return modified; }
ll_iter_insert(&it, card2);
add_card_providers(card2, card, 1); //copy providers to new card. Copy remote nodes to new card
}
modified = 1;
}
else //found, merge cards (providers are same!)
{
card_dup_count++;
card2->grp |= card->grp; //add group to the card
add_card_providers(card2, card, 0);
merge_sids(card2, card);
}