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oscam-chk.c
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oscam-chk.c
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#define MODULE_LOG_PREFIX "chk"
#include "globals.h"
#include "oscam-cache.h"
#include "oscam-chk.h"
#include "oscam-ecm.h"
#include "oscam-client.h"
#include "oscam-lock.h"
#include "oscam-net.h"
#include "oscam-string.h"
#include "module-stat.h"
#include "oscam-reader.h"
#define CS_NANO_CLASS 0xE2
#define OK 1
#define ERROR 0
uint32_t get_fallbacktimeout(uint16_t caid)
{
uint32_t ftimeout = caidvaluetab_get_value(&cfg.ftimeouttab, caid, 0);
if(ftimeout == 0) { ftimeout = cfg.ftimeout; }
if(ftimeout < 100) { ftimeout = CS_CLIENT_TIMEOUT / 2; }
if(ftimeout >= cfg.ctimeout) { ftimeout = cfg.ctimeout - 100; }
return ftimeout;
}
static int32_t find_nano(uchar *ecm, int32_t l, uchar nano, int32_t s)
{
uchar *snano;
if(s >= l) { return 0; }
if(!s) { s = (ecm[4] == 0xD2) ? 12 : 9; } // tpsflag -> offset+3
snano = ecm + s;
while((*snano != nano) && (s < l))
{
if(*snano == 0xEA) { return 0; }
snano++;
s++;
}
return (s < l) ? ++s : 0;
}
static int32_t chk_class(ECM_REQUEST *er, CLASSTAB *clstab, const char *type, const char *name)
{
int32_t i, j, an, cl_n, l;
uchar ecm_class;
if(er->caid != 0x0500) { return 1; }
if(!clstab->bn && !clstab->an) { return 1; }
j = an = cl_n = l = 0;
while((j = find_nano(er->ecm, er->ecmlen, CS_NANO_CLASS, j)) > 0)
{
l = er->ecm[j];
if(l + j > er->ecmlen) { continue; } // skip, this is not a valid class identifier!
ecm_class = er->ecm[j + l];
cs_log_dbg(D_CLIENT, "ecm class=%02X", ecm_class);
for(i = 0; i < clstab->bn; i++) // search in blocked
if(ecm_class == clstab->bclass[i])
{
cs_log_dbg(D_CLIENT, "class %02X rejected by %s '%s' !%02X filter",
ecm_class, type, name, ecm_class);
return 0;
}
cl_n++;
for(i = 0; i < clstab->an; i++) // search in allowed
if(ecm_class == clstab->aclass[i])
{
an++;
break;
}
j += l;
}
if(cl_n && clstab->an)
{
if(an)
{ cs_log_dbg(D_CLIENT, "ECM classes allowed by %s '%s' filter", type, name); }
else
{
cs_log_dbg(D_CLIENT, "ECM classes don't match %s '%s' filter, rejecting", type, name);
return 0;
}
}
return 1;
}
int32_t chk_srvid_match(ECM_REQUEST *er, SIDTAB *sidtab)
{
int32_t i, rc = 0;
if(!sidtab->num_caid)
{ rc |= 1; }
else
for(i = 0; (i < sidtab->num_caid) && (!(rc & 1)); i++)
if(er->caid == sidtab->caid[i]) { rc |= 1; }
if(!er->prid || !sidtab->num_provid)
{ rc |= 2; }
else
for(i = 0; (i < sidtab->num_provid) && (!(rc & 2)); i++)
if(er->prid == sidtab->provid[i]) { rc |= 2; }
if(!sidtab->num_srvid)
{ rc |= 4; }
else
for(i = 0; (i < sidtab->num_srvid) && (!(rc & 4)); i++)
if(er->srvid == sidtab->srvid[i]) { rc |= 4; }
return (rc == 7);
}
int32_t chk_srvid(struct s_client *cl, ECM_REQUEST *er)
{
int32_t nr, rc = 0;
SIDTAB *sidtab;
if(!cl->sidtabs.ok)
{
if(!cl->sidtabs.no) { return (1); }
rc = 1;
}
for(nr = 0, sidtab = cfg.sidtab; sidtab; sidtab = sidtab->next, nr++)
if(sidtab->num_caid | sidtab->num_provid | sidtab->num_srvid)
{
if((cl->sidtabs.no & ((SIDTABBITS)1 << nr)) &&
(chk_srvid_match(er, sidtab)))
{ return (0); }
if((cl->sidtabs.ok & ((SIDTABBITS)1 << nr)) &&
(chk_srvid_match(er, sidtab)))
{ rc = 1; }
}
return (rc);
}
int32_t has_srvid(struct s_client *cl, ECM_REQUEST *er)
{
if(!cl->sidtabs.ok)
{ return 0; }
int32_t nr;
SIDTAB *sidtab;
for(nr = 0, sidtab = cfg.sidtab; sidtab; sidtab = sidtab->next, nr++)
if(sidtab->num_srvid)
{
if((cl->sidtabs.ok & ((SIDTABBITS)1 << nr)) &&
(chk_srvid_match(er, sidtab)))
{ return 1; }
}
return 0;
}
int32_t has_lb_srvid(struct s_client *cl, ECM_REQUEST *er)
{
if(!cl->lb_sidtabs.ok)
{ return 0; }
int32_t nr;
SIDTAB *sidtab;
for(nr = 0, sidtab = cfg.sidtab; sidtab; sidtab = sidtab->next, nr++)
if((cl->lb_sidtabs.ok & ((SIDTABBITS)1 << nr)) &&
(chk_srvid_match(er, sidtab)))
{ return 1; }
return 0;
}
int32_t chk_srvid_match_by_caid_prov(uint16_t caid, uint32_t provid, SIDTAB *sidtab)
{
int32_t i, rc = 0;
if(!sidtab->num_caid)
{ rc |= 1; }
else
for(i = 0; (i < sidtab->num_caid) && (!(rc & 1)); i++)
if(caid == sidtab->caid[i]) { rc |= 1; }
if(!sidtab->num_provid)
{ rc |= 2; }
else
for(i = 0; (i < sidtab->num_provid) && (!(rc & 2)); i++)
if(provid == sidtab->provid[i]) { rc |= 2; }
return (rc == 3);
}
int32_t chk_srvid_by_caid_prov(struct s_client *cl, uint16_t caid, uint32_t provid)
{
int32_t nr, rc = 0;
SIDTAB *sidtab;
if(!cl->sidtabs.ok)
{
if(!cl->sidtabs.no) { return (1); }
rc = 1;
}
for(nr = 0, sidtab = cfg.sidtab; sidtab; sidtab = sidtab->next, nr++)
if(sidtab->num_caid | sidtab->num_provid)
{
if((cl->sidtabs.no & ((SIDTABBITS)1 << nr)) && !sidtab->num_srvid &&
(chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
{ return (0); }
if((cl->sidtabs.ok & ((SIDTABBITS)1 << nr)) &&
(chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
{ rc = 1; }
}
return (rc);
}
int32_t chk_srvid_by_caid_prov_rdr(struct s_reader *rdr, uint16_t caid, uint32_t provid)
{
int32_t nr, rc = 0;
SIDTAB *sidtab;
if(!rdr->sidtabs.ok)
{
if(!rdr->sidtabs.no) { return (1); }
rc = 1;
}
for(nr = 0, sidtab = cfg.sidtab; sidtab; sidtab = sidtab->next, nr++)
if(sidtab->num_caid | sidtab->num_provid)
{
if((rdr->sidtabs.no & ((SIDTABBITS)1 << nr)) && !sidtab->num_srvid &&
(chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
{ return (0); }
if((rdr->sidtabs.ok & ((SIDTABBITS)1 << nr)) &&
(chk_srvid_match_by_caid_prov(caid, provid, sidtab)))
{ rc = 1; }
}
return (rc);
}
int32_t chk_is_betatunnel_caid(uint16_t caid)
{
if(caid == 0x1702 || caid == 0x1722) { return 1; }
if(caid == 0x1801 || caid == 0x1833 || caid == 0x1834 || caid == 0x1835) { return 2; }
return 0;
}
uint16_t chk_on_btun(uint8_t chk_sx, struct s_client *cl, ECM_REQUEST *er)
{
if(chk_is_betatunnel_caid(er->caid))
{
int32_t i;
TUNTAB *ttab;
ttab = &cl->ttab;
if(ttab->ttdata)
{
for(i = 0; i < ttab->ttnum; i++)
{
if(er->caid == ttab->ttdata[i].bt_caidfrom)
{
if(er->srvid == ttab->ttdata[i].bt_srvid) { return ttab->ttdata[i].bt_caidto; }
if(chk_sx && ttab->ttdata[i].bt_srvid == 0xFFFF) { return ttab->ttdata[i].bt_caidto; }
if(!chk_sx && !ttab->ttdata[i].bt_srvid) { return ttab->ttdata[i].bt_caidto; }
}
}
}
if(chk_sx)
return lb_get_betatunnel_caid_to(er);
}
return 0;
}
// server filter for newcamd
int32_t chk_sfilter(ECM_REQUEST *er, PTAB *ptab)
{
#ifdef MODULE_NEWCAMD
int32_t i, j, pi, rc = 1;
uint16_t caid, scaid;
uint32_t prid, sprid;
if(!ptab) { return (1); }
struct s_client *cur_cl = cur_client();
caid = er->caid;
prid = er->prid;
pi = cur_cl->port_idx;
if(cfg.ncd_mgclient)
{ return 1; }
if(ptab->nports && ptab->ports[pi].ncd && ptab->ports[pi].ncd->ncd_ftab.nfilts)
{
for(rc = j = 0; (!rc) && (j < ptab->ports[pi].ncd->ncd_ftab.nfilts); j++)
{
scaid = ptab->ports[pi].ncd->ncd_ftab.filts[j].caid;
if(caid == 0 || (caid != 0 && caid == scaid))
{
for(i = 0; (!rc) && i < ptab->ports[pi].ncd->ncd_ftab.filts[j].nprids; i++)
{
sprid = ptab->ports[pi].ncd->ncd_ftab.filts[j].prids[i];
cs_log_dbg(D_CLIENT, "trying server filter %04X@%06X", scaid, sprid);
if(prid == sprid)
{
rc = 1;
cs_log_dbg(D_CLIENT, "%04X@%06X allowed by server filter %04X@%06X",
caid, prid, scaid, sprid);
}
}
}
}
if(!rc)
{
cs_log_dbg(D_CLIENT, "no match, %04X@%06X rejected by server filters", caid, prid);
snprintf(er->msglog, MSGLOGSIZE, "no server match %04X@%06X",
caid, (uint32_t) prid);
if(!er->rcEx) { er->rcEx = (E1_LSERVER << 4) | E2_IDENT; }
return (rc);
}
}
return (rc);
#else
(void)er;
(void)ptab;
return 1;
#endif
}
static int32_t chk_chid(ECM_REQUEST *er, FTAB *fchid, char *type, char *name)
{
int32_t rc = 1, i, j, found_caid = 0;
if(!fchid->nfilts) { return 1; }
for(i = rc = 0; (!rc) && i < fchid->nfilts; i++)
if(er->caid == fchid->filts[i].caid)
{
found_caid = 1;
for(j = 0; (!rc) && j < fchid->filts[i].nprids; j++)
{
cs_log_dbg(D_CLIENT, "trying %s '%s' CHID filter %04X:%04X",
type, name, fchid->filts[i].caid, fchid->filts[i].prids[j]);
if(er->chid == fchid->filts[i].prids[j])
{
cs_log_dbg(D_CLIENT, "%04X:%04X allowed by %s '%s' CHID filter %04X:%04X",
er->caid, er->chid, type, name, fchid->filts[i].caid,
fchid->filts[i].prids[j]);
rc = 1;
}
}
}
if(!rc)
{
if(found_caid)
cs_log_dbg(D_CLIENT, "no match, %04X:%04X rejected by %s '%s' CHID filter(s)",
er->caid, er->chid, type, name);
else
{
rc = 1;
cs_log_dbg(D_CLIENT, "%04X:%04X allowed by %s '%s' CHID filter, CAID not spezified",
er->caid, er->chid, type, name);
}
}
return (rc);
}
int32_t chk_ident_filter(uint16_t rcaid, uint32_t rprid, FTAB *ftab)
{
int32_t i, j, rc=1;
uint16_t caid=0;
uint32_t prid=0;
if(ftab->nfilts)
{
for(rc=i=0; (!rc) && (i<ftab->nfilts); i++)
{
caid = ftab->filts[i].caid;
if((caid!=0 && caid==rcaid) || caid==0)
{
for(j=0; (!rc) && (j<ftab->filts[i].nprids); j++)
{
prid = ftab->filts[i].prids[j];
if(prid==rprid)
{
rc=1;
}
}
}
}
if(!rc)
{ return 0; }
}
return(rc);
}
int32_t chk_ufilters(ECM_REQUEST *er)
{
int32_t i, j, rc;
uint16_t ucaid;
uint32_t uprid;
struct s_client *cur_cl = cur_client();
rc = 1;
if(cur_cl->ftab.nfilts)
{
FTAB *f = &cur_cl->ftab;
for(i = rc = 0; (!rc) && (i < f->nfilts); i++)
{
ucaid = f->filts[i].caid;
if(er->caid == 0 || ucaid == 0 || (er->caid != 0 && er->caid == ucaid))
{
if (er->prid == 0)
{
cs_log_dbg(D_CLIENT, "%04X@%06X allowed by user '%s' filter caid %04X prid %06X",
er->caid, er->prid, cur_cl->account->usr, ucaid, 0);
rc = 1;
break;
}
for(j = rc = 0; (!rc) && (j < f->filts[i].nprids); j++)
{
uprid = f->filts[i].prids[j];
cs_log_dbg(D_CLIENT, "trying user '%s' filter %04X@%06X",
cur_cl->account->usr, ucaid, uprid);
if(er->prid == uprid)
{
rc = 1;
cs_log_dbg(D_CLIENT, "%04X@%06X allowed by user '%s' filter %04X@%06X",
er->caid, er->prid, cur_cl->account->usr, ucaid, uprid);
}
}
}
}
if(!rc)
{
cs_log_dbg(D_CLIENT, "no match, %04X@%06X rejected by user '%s' filters",
er->caid, er->prid, cur_cl->account->usr);
snprintf(er->msglog, MSGLOGSIZE, "no card support %04X@%06X",
er->caid, (uint32_t) er->prid);
if(!er->rcEx) { er->rcEx = (E1_USER << 4) | E2_IDENT; }
return (rc);
}
}
if(!(rc = chk_class(er, &cur_cl->cltab, "user", cur_cl->account->usr)))
{
if(!er->rcEx) { er->rcEx = (E1_USER << 4) | E2_CLASS; }
}
else if(!(rc = chk_chid(er, &cur_cl->fchid, "user", cur_cl->account->usr)))
if(!er->rcEx) { er->rcEx = (E1_USER << 4) | E2_CHID; }
if(rc) { er->rcEx = 0; }
return (rc);
}
int32_t chk_rsfilter(struct s_reader *reader, ECM_REQUEST *er)
{
int32_t i, rc = 1;
uint16_t caid;
uint32_t prid;
if(reader->ncd_disable_server_filt)
{
cs_log_dbg(D_CLIENT, "%04X@%06X allowed - server filters disabled",
er->caid, er->prid);
return 1;
}
rc = prid = 0;
caid = reader->caid;
if(caid == er->caid)
{
for(i = 0; (!rc) && (i < reader->nprov); i++)
{
prid = (uint32_t)((reader->prid[i][1] << 16) |
(reader->prid[i][2] << 8) |
(reader->prid[i][3]));
cs_log_dbg(D_CLIENT, "trying server '%s' filter %04X@%06X",
reader->device, caid, prid);
if(prid == er->prid)
{
rc = 1;
cs_log_dbg(D_CLIENT, "%04X@%06X allowed by server '%s' filter %04X@%06X",
er->caid, er->prid, reader->device, caid, prid);
}
}
}
if(!rc)
{
cs_log_dbg(D_CLIENT, "no match, %04X@%06X rejected by server '%s' filters",
er->caid, er->prid, reader->device);
if(!er->rcEx) { er->rcEx = (E1_SERVER << 4) | E2_IDENT; }
return 0;
}
return (rc);
}
int32_t chk_rfilter2(uint16_t rcaid, uint32_t rprid, struct s_reader *rdr)
{
int32_t i, j, rc = 1;
uint16_t caid = 0;
uint32_t prid = 0;
if(rdr->ftab.nfilts)
{
for(rc = i = 0; (!rc) && (i < rdr->ftab.nfilts); i++)
{
caid = rdr->ftab.filts[i].caid;
if((caid != 0 && caid == rcaid) || caid == 0)
{
for(j = 0; (!rc) && (j < rdr->ftab.filts[i].nprids); j++)
{
prid = rdr->ftab.filts[i].prids[j];
cs_log_dbg(D_CLIENT, "trying reader '%s' filter %04X@%06X",
rdr->label, caid, prid);
if(prid == rprid)
{
rc = 1;
cs_log_dbg(D_CLIENT, "%04X@%06X allowed by reader '%s' filter %04X@%06X",
rcaid, rprid, rdr->label, caid, prid);
}
}
}
}
if(!rc)
{
cs_log_dbg(D_CLIENT, "no match, %04X@%06X rejected by reader '%s' filters",
rcaid, rprid, rdr->label);
return 0;
}
}
return (rc);
}
static int32_t chk_rfilter(ECM_REQUEST *er, struct s_reader *rdr)
{
return chk_rfilter2(er->caid, er->prid, rdr);
}
int32_t chk_ctab(uint16_t caid, CAIDTAB *ctab)
{
if(!caid || !ctab->ctnum)
{ return 1; }
int32_t i;
for(i = 0; i < ctab->ctnum; i++)
{
CAIDTAB_DATA *d = &ctab->ctdata[i];
if(!d->caid)
{
return 0;
}
if((caid & d->mask) == d->caid)
{ return 1; }
}
return 0;
}
int32_t chk_ctab_ex(uint16_t caid, CAIDTAB *ctab)
{
if(!caid || !ctab->ctnum)
{ return 0; }
int32_t i;
for(i = 0; i < ctab->ctnum; i++)
{
CAIDTAB_DATA *d = &ctab->ctdata[i];
if(!d->caid)
{
return 0;
}
if((caid & d->mask) == d->caid)
{ return 1; }
}
return 0;
}
uint8_t is_localreader(struct s_reader *rdr, ECM_REQUEST *er) //to be used for LB/reader selections checks only
{
if(!rdr) return 0;
if(!is_network_reader(rdr)){
return 1;
}
if(!rdr->localcards.nfilts) { return 0; }
int32_t i, k;
for(i = 0; i < rdr->localcards.nfilts; i++)
{
uint16_t tcaid = rdr->localcards.filts[i].caid;
if(tcaid && tcaid == er->caid) //caid match
{
int32_t nprids = rdr->localcards.filts[i].nprids;
if(!nprids) // No Provider ->Ok
{ return 1; }
for(k = 0; k < nprids; k++)
{
uint32_t prid = rdr->localcards.filts[i].prids[k];
if(prid == er->prid) //Provider matches
{
return 1;
}
}
}
}
return 0;
}
uint8_t chk_is_fixed_fallback(struct s_reader *rdr, ECM_REQUEST *er)
{
if(!rdr->fallback && !rdr->fallback_percaid.nfilts) { return 0; }
if(!rdr->fallback_percaid.nfilts)
if(rdr->fallback)
{ return 1; }
int32_t i, k;
for(i = 0; i < rdr->fallback_percaid.nfilts; i++)
{
uint16_t tcaid = rdr->fallback_percaid.filts[i].caid;
if(tcaid && (tcaid == er->caid || (tcaid < 0x0100 && (er->caid >> 8) == tcaid))) //caid match
{
int32_t nprids = rdr->fallback_percaid.filts[i].nprids;
if(!nprids) // No Provider ->Ok
{ return 1; }
for(k = 0; k < nprids; k++)
{
uint32_t prid = rdr->fallback_percaid.filts[i].prids[k];
if(prid == er->prid) //Provider matches
{
return 1;
}
}
}
}
return 0;
}
uint8_t chk_has_fixed_fallback(ECM_REQUEST *er)
{
struct s_ecm_answer *ea;
struct s_reader *rdr;
int32_t n_falb = 0;
for(ea = er->matching_rdr; ea; ea = ea->next)
{
rdr = ea->reader;
if(chk_is_fixed_fallback(rdr, er))
{ n_falb++; }
}
return n_falb;
}
int32_t matching_reader(ECM_REQUEST *er, struct s_reader *rdr)
{
//simple checks first:
if(!er || !rdr)
{ return (0); }
//reader active?
struct s_client *cl = rdr->client;
if(!cl || !rdr->enable)
{ return (0); }
// if physical reader a card needs to be inserted
if(!is_network_reader(rdr) && rdr->card_status != CARD_INSERTED)
{ return (0); }
//Checking connected & group valid:
struct s_client *cur_cl = er->client; //cur_client();
#ifdef CS_CACHEEX
//Cacheex=3 defines a Cacheex-only reader. never match them.
if(rdr->cacheex.mode == 3)
{ return (0); }
if(rdr->cacheex.mode == 2 && !rdr->cacheex.allow_request)
{ return (0); }
#endif
if(!(rdr->grp & cur_cl->grp))
{ return (0); }
//Checking caids:
if((!er->ocaid || !chk_ctab(er->ocaid, &rdr->ctab)) && !chk_ctab(er->caid, &rdr->ctab))
{
cs_log_dbg(D_TRACE, "caid %04X not found in caidlist reader %s", er->caid, rdr->label);
return 0;
}
if(!is_network_reader(rdr) && ((rdr->caid >> 8) != ((er->caid >> 8) & 0xFF) && (rdr->caid >> 8) != ((er->ocaid >> 8) & 0xFF)))
{
if (!rdr->csystem)
return 0;
int i, caid_found = 0;
for(i = 0; rdr->csystem->caids[i]; i++)
{
uint16_t cs_caid = rdr->csystem->caids[i];
if(!cs_caid)
{ continue; }
if(cs_caid == er->caid || cs_caid == er->ocaid)
{
caid_found = 1;
break;
}
}
if(!caid_found)
{ return 0; }
}
//Supports long ecms?
if(er->ecmlen > 255 && is_network_reader(rdr) && !rdr->ph.large_ecm_support)
{
cs_log_dbg(D_TRACE, "no large ecm support (l=%d) for reader %s", er->ecmlen, rdr->label);
return 0;
}
//Checking services:
if(!chk_srvid(rdr->client, er))
{
cs_log_dbg(D_TRACE, "service %04X not matching reader %s", er->srvid, rdr->label);
return (0);
}
//Checking ident:
if(!chk_rfilter(er, rdr))
{
cs_log_dbg(D_TRACE, "r-filter reader %s", rdr->label);
return (0);
}
//Check ECM nanos:
if(!chk_class(er, &rdr->cltab, "reader", rdr->label))
{
cs_log_dbg(D_TRACE, "class filter reader %s", rdr->label);
return (0);
}
// CDS NL: check for right seca type
if(!is_network_reader(rdr) && er->caid == 0x100 && er->prid == 0x00006a &&
!(er->ecm[8] == 0x00 && er->ecm[9] == 0x00)) // no empty ecm
{
if(er->ecm[8] == 0x00 && rdr->secatype == 2)
{
cs_log_dbg(D_TRACE, "Error: this is a nagra/mediaguard3 ECM and readertype is seca2!");
return 0; // we dont send a nagra/mediaguard3 ecm to a seca2 reader!
}
if((er->ecm[8] == 0x10) && (er->ecm[9] == 0x01) && rdr->secatype == 3)
{
cs_log_dbg(D_TRACE, "Error: this is a seca2 ECM and readertype is nagra/mediaguard3!");
return 0; // we dont send a seca2 ecm to a nagra/mediaguard3 reader!
}
}
// CDS NL: check for right seca type by ECMPID
if(!is_network_reader(rdr) && er->caid == 0x100 && er->prid == 0x00006a)
{
if(rdr->secatype == 2 && er->pid >> 8 == 7)
{
cs_log_dbg(D_TRACE, "Error: this is a nagra/mediaguard3 ECM and readertype is seca2!");
return 0; // we dont send a nagra/mediaguard3 ecm to a seca2 reader!
}
if(rdr->secatype == 3 && er->pid >> 8 == 6)
{
cs_log_dbg(D_TRACE, "Error: this is a seca2 ECM and readertype is nagra/mediaguard3!");
return 0; // we dont send a seca2 ecm to a nagra/mediaguard3 reader!
}
}
//Checking chid:
if(!chk_chid(er, &rdr->fchid, "reader", rdr->label))
{
cs_log_dbg(D_TRACE, "chid filter reader %s", rdr->label);
return (0);
}
//Schlocke reader-defined function, reader-self-check
if(rdr->ph.c_available && !rdr->ph.c_available(rdr, AVAIL_CHECK_CONNECTED, er))
{
cs_log_dbg(D_TRACE, "reader unavailable %s", rdr->label);
return 0;
}
//Checking entitlements:
if(ll_count(rdr->ll_entitlements) > 0)
{
LL_ITER itr = ll_iter_create(rdr->ll_entitlements);
S_ENTITLEMENT *item;
int8_t found = 0;
while((item = ll_iter_next(&itr)))
{
//if (item->caid == er->caid && (!er->prid || !item->provid || item->provid == er->prid)) { //provid check causing problems?
if(item->caid == er->caid || item->caid == er->ocaid) //... so check at least caid only
{
found = 1;
break;
}
}
if(!found)
{
cs_log_dbg(D_TRACE, "entitlements check failed on reader %s", rdr->label);
return 0;
}
}
//Checking ecmlength:
if(rdr->ecm_whitelist.ewnum && er->ecmlen)
{
int32_t i;
int8_t ok = 0, foundident = 0;
for (i = 0; i < rdr->ecm_whitelist.ewnum; i++)
{
ECM_WHITELIST_DATA *d = &rdr->ecm_whitelist.ewdata[i];
if ((d->caid == 0 || d->caid == er->caid) && (d->ident == 0 || d->ident == er->prid))
{
foundident = 1;
if (d->len == er->ecmlen)
{
ok = 1;
break;
}
}
}
if(foundident == 1 && ok == 0)
{
cs_log_dbg(D_TRACE, "ECM is not in ecmwhitelist of reader %s.", rdr->label);
rdr->ecmsfilteredlen += 1;
return (0);
}
}
// ECM Header Check
if(rdr->ecm_hdr_whitelist.ehdata && er->ecmlen)
{
int8_t byteok = 0;
int8_t entryok = 0;
int8_t foundcaid = 0;
int8_t foundprovid = 0;
int16_t len = 0;
int32_t i = 0;
int8_t skip = 0;
int32_t r;
for(r = 0; r < rdr->ecm_hdr_whitelist.ehnum; r++)
{
ECM_HDR_WHITELIST_DATA *tmp = &rdr->ecm_hdr_whitelist.ehdata[r];
skip = 0;
byteok = 0;
entryok = 0;
len = 0;
if(tmp->caid == 0 || tmp->caid == er->caid)
{
foundcaid = 1; //-> caid was in list
//rdr_log_dbg(rdr, D_READER, "Headerwhitelist: found matching CAID: %04X in list", tmp->caid);
if(tmp->provid == 0 || tmp->provid == er->prid)
{
foundprovid = 1; //-> provid was in list
//rdr_log_dbg(rdr, D_READER, "Headerwhitelist: found matching Provid: %06X in list", tmp->provid);
len = tmp->len;
for(i = 0; i < len / 2; i++)
{
if(tmp->header[i] == er->ecm[i])
{
byteok = 1;
//rdr_log_dbg(rdr, D_READER, "ECM Byte: %i of ECMHeaderwhitelist is correct. (%02X = %02X Headerlen: %i)", i, er->ecm[i], tmp->header[i], len/2);
}
else
{
byteok = 0;
//rdr_log_dbg(rdr, D_READER, "ECM Byte: %i of ECMHeaderwhitelist is not valid. (%02X != %02X Headerlen: %i)", i, er->ecm[i], tmp->header[i], len/2);
entryok = 0;
break;
}
if(i == len / 2 - 1 && byteok == 1)
{
entryok = 1;
}
}
}
else
{
//rdr_log_dbg(rdr, D_READER, "ECMHeaderwhitelist: Provid: %06X not found in List-Entry -> skipping check", er->prid);
skip = 1;
continue;
}
}
else
{
//rdr_log_dbg(rdr, D_READER, "ECMHeaderwhitelist: CAID: %04X not found in List-Entry -> skipping check", er->caid);
skip = 1;
continue;
}
if(entryok == 1)
{
break;
}
}
if(foundcaid == 1 && foundprovid == 1 && byteok == 1 && entryok == 1)
{
//cs_log("ECM for %04X@%06X:%04X is valid for ECMHeaderwhitelist of reader %s.", er->caid, er->prid, er->srvid, rdr->label);
}
else
{
if(skip == 0 || (foundcaid == 1 && foundprovid == 1 && entryok == 0 && skip == 1))
{
cs_log_dump_dbg(D_TRACE, er->ecm, er->ecmlen,
"following ECM %04X@%06X:%04X was filtered by ECMHeaderwhitelist of Reader %s from User %s because of not matching Header:",
er->caid, er->prid, er->srvid, rdr->label, username(er->client));
rdr->ecmsfilteredhead += 1;
return (0);
}
}
}
//Simple ring connection check:
//Check ip source+dest:
if(cfg.block_same_ip && IP_EQUAL(cur_cl->ip, rdr->client->ip) &&
get_module(cur_cl)->listenertype != LIS_DVBAPI &&
is_network_reader(rdr))
{
rdr_log_dbg(rdr, D_TRACE, "User (%s) has the same ip (%s) as the reader, blocked because block_same_ip=1!",
username(cur_cl), cs_inet_ntoa(rdr->client->ip));
return 0;
}
if(cfg.block_same_name && strcmp(username(cur_cl), rdr->label) == 0)
{
rdr_log_dbg(rdr, D_TRACE, "User (%s) has the same name as the reader, blocked because block_same_name=1!",
username(cur_cl));
return 0;
}
if(!reader_slots_available(rdr, er)&& er->ecmlen > 0) // check free slots, er->ecmlen>0 trick to skip this test for matching readers in dvbapi module
{
return 0;
}
//All checks done, reader is matching!
return (1);
}
int32_t chk_caid(uint16_t caid, CAIDTAB *ctab)
{
int32_t i;
if (!ctab->ctnum) return caid;
for(i = 0; i < ctab->ctnum; i++)
{
CAIDTAB_DATA *d = &ctab->ctdata[i];
if((caid & d->mask) == d->caid)
return d->cmap ? d->cmap : caid;
}
return -1;
}
int32_t chk_caid_rdr(struct s_reader *rdr, uint16_t caid)
{
if(is_network_reader(rdr))
{
return 1; //reader caid is not real caid
}
else if(rdr->caid == caid)
{
return 1;
}
return 0;
}
int32_t chk_bcaid(ECM_REQUEST *er, CAIDTAB *ctab)
{
int32_t caid;
caid = chk_caid(er->caid, ctab);
if(caid < 0)
{ return 0; }
er->caid = caid;
return 1;
}
/**
* Check for NULL CWs