| 1 | #include "globals.h"
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| 2 |
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| 3 | //#define CS_NANO_GEO 0x9F
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| 4 | #define CS_NANO_CLASS 0xE2
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| 5 |
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| 6 | int find_nano(uchar *ecm, int l, uchar nano, int s)
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| 7 | {
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| 8 | uchar *snano;
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| 9 |
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| 10 | if( s >= l ) return 0;
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| 11 | if( !s ) s=(ecm[4]==0xD2) ? 12 : 9; // tpsflag -> offset+3
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| 12 | snano = ecm + s;
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| 13 |
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| 14 | while( (*snano!=nano) && (s<l) )
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| 15 | {
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| 16 | if( *snano == 0xEA ) return 0;
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| 17 | snano++;
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| 18 | s++;
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| 19 | }
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| 20 |
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| 21 | return (s<l)?++s:0;
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| 22 | }
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| 23 |
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| 24 | int chk_class(ECM_REQUEST *er, CLASSTAB *clstab, const char *type, const char *name)
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| 25 | {
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| 26 | int i, j, an, cl_n, l;
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| 27 | uchar ecm_class;
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| 28 |
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| 29 | if( er->caid!=0x0500 ) return 1;
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| 30 | if( !clstab->bn && !clstab->an ) return 1;
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| 31 |
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| 32 | j=an=cl_n=l=0;
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| 33 | while( (j=find_nano(er->ecm, er->l, CS_NANO_CLASS, j)) > 0 )
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| 34 | {
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| 35 | l = er->ecm[j];
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| 36 | ecm_class = er->ecm[j+l];
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| 37 | cs_debug("ecm class=%02X", ecm_class);
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| 38 | for( i=0; i<clstab->bn; i++ ) // search in blocked
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| 39 | if( ecm_class==clstab->bclass[i] )
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| 40 | {
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| 41 | cs_debug("class %02X rejected by %s '%s' !%02X filter",
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| 42 | ecm_class, type, name, ecm_class);
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| 43 | return 0;
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| 44 | }
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| 45 |
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| 46 | cl_n++;
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| 47 | for( i=0; i<clstab->an; i++ ) // search in allowed
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| 48 | if( ecm_class==clstab->aclass[i] )
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| 49 | {
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| 50 | an++;
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| 51 | break;
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| 52 | }
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| 53 | j+=l;
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| 54 | }
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| 55 |
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| 56 | if( cl_n && clstab->an )
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| 57 | {
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| 58 | if( an )
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| 59 | cs_debug("ECM classes allowed by %s '%s' filter", type, name);
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| 60 | else {
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| 61 | cs_debug("ECM classes don't match %s '%s' filter, rejecting", type, name);
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| 62 | return 0;
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| 63 | }
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| 64 | }
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| 65 |
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| 66 | return 1;
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| 67 | }
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| 68 |
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| 69 | /*
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| 70 | int chk_geo(ECM_REQUEST *er, int el, unsigned char *rclass, int cl)
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| 71 | {
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| 72 |
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| 73 | return 1;
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| 74 | }
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| 75 | */
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