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#include "asn1fix_internal.h"
#include "asn1fix_crange.h"
/*
* Check that a specific constraint is compatible
* with the given expression type.
*/
int
asn1constraint_compatible(asn1p_expr_type_e expr_type,
enum asn1p_constraint_type_e constr_type) {
/*
* X.680-0207, Table 9.
*/
switch(constr_type) {
case ACT_INVALID:
return 0;
case ACT_EL_VALUE:
return 1;
case ACT_EL_RANGE:
case ACT_EL_LLRANGE:
case ACT_EL_RLRANGE:
case ACT_EL_ULRANGE:
switch(expr_type) {
case ASN_BASIC_ENUMERATED:
case ASN_BASIC_BOOLEAN:
/*
* The ValueRange constraint is not formally
* applicable to the above types. However, we
* support it just fine.
*/
/* Fall through */
case ASN_BASIC_INTEGER:
case ASN_BASIC_REAL:
return 1;
default:
if(expr_type & ASN_STRING_MASK)
return 1;
}
return 0;
case ACT_EL_EXT:
return -1;
case ACT_CT_FROM:
if(expr_type & ASN_STRING_MASK)
return 1;
return 0;
case ACT_CT_SIZE:
switch(expr_type) {
case ASN_BASIC_BIT_STRING:
case ASN_BASIC_OCTET_STRING:
case ASN_BASIC_CHARACTER_STRING:
case ASN_CONSTR_SEQUENCE_OF:
case ASN_CONSTR_SET_OF:
return 1;
default:
if(expr_type & ASN_STRING_MASK)
return 1;
}
return 0;
case ACT_CT_WCOMP:
case ACT_CT_WCOMPS:
switch(expr_type) {
case A1TC_INSTANCE:
case ASN_BASIC_EXTERNAL:
case ASN_BASIC_EMBEDDED_PDV:
case ASN_BASIC_REAL:
case ASN_BASIC_CHARACTER_STRING:
case ASN_CONSTR_CHOICE:
case ASN_CONSTR_SEQUENCE:
case ASN_CONSTR_SEQUENCE_OF:
case ASN_CONSTR_SET:
case ASN_CONSTR_SET_OF:
return 1;
default: break;
}
return 0;
case ACT_CA_SET:
case ACT_CA_CRC:
case ACT_CA_CSV:
case ACT_CA_UNI:
case ACT_CA_INT:
case ACT_CA_EXC:
return 1;
}
return -1;
}
#define DECL_RANGE(foo, val1, val2, pv) \
static asn1cnst_range_t range_ ## foo = { \
{ ARE_VALUE, 0, val1 }, \
{ ARE_VALUE, 0, val2 }, \
0, 0, 0, 0, 0, 0, pv }
#define DECL(foo, val1, val2) DECL_RANGE(foo, val1, val2, 0)
#define DECL_notPV(foo, val1, val2) DECL_RANGE(foo, val1, val2, 1)
asn1cnst_range_t *
asn1constraint_default_alphabet(asn1p_expr_type_e expr_type) {
DECL_notPV(octstr, 0x00, 0xff); /* Not PER-visible */
DECL_notPV(utf8, 0x00, 0x7fffffff); /* Not PER-visible */
DECL(bmp, 0x00, 65533); /* 64K-2 cells */
DECL(uint7, 0x00, 0x7f);
DECL(uint31, 0x00, 0x7fffffff);
DECL(Space, 0x20, 0x20);
DECL(ApostropheAndParens, 0x27, 0x29);
DECL(PlusTillColon, 0x2b, 0x3a);
DECL(Equal, 0x3d, 0x3d);
DECL(QuestionMark, 0x3f, 0x3f);
DECL(Digits, 0x30, 0x39);
DECL(AlphaCap, 0x41, 0x5a);
DECL(AlphaLow, 0x61, 0x7a);
DECL(PlusCommaMinusDot, 0x2b, 0x2e);
DECL(Plus, 0x2b, 0x2b);
DECL(MinusDot, 0x2d, 0x2e);
DECL(Z, 0x5a, 0x5a);
static asn1cnst_range_t *range_NumericString_array[] = {
&range_Space, &range_Digits };
static asn1cnst_range_t *range_PrintableString_array[] = {
&range_Space,
&range_ApostropheAndParens,
&range_PlusTillColon,
&range_Equal,
&range_QuestionMark,
&range_AlphaCap,
&range_AlphaLow
};
static asn1cnst_range_t *range_UTCTime_array[] = {
&range_Plus, &range_MinusDot, &range_Digits, &range_Z };
static asn1cnst_range_t *range_GeneralizedTime_array[] = {
&range_PlusCommaMinusDot, &range_Digits, &range_Z };
static asn1cnst_range_t range_notPERVisible = {
{ ARE_MIN, 0, 0 },
{ ARE_MAX, 0, 0 },
0, 0, 0, 0, 0, 0, 1 };
static asn1cnst_range_t range_NumericString = {
{ ARE_VALUE, 0, 0x20 },
{ ARE_VALUE, 0, 0x39 },
range_NumericString_array,
sizeof(range_NumericString_array)
/sizeof(range_NumericString_array[0]),
0, 0, 0, 0, 0 };
static asn1cnst_range_t range_PrintableString = {
{ ARE_VALUE, 0, 0x20 },
{ ARE_VALUE, 0, 0x7a },
range_PrintableString_array,
sizeof(range_PrintableString_array)
/sizeof(range_PrintableString_array[0]),
0, 0, 0, 0, 0 };
static asn1cnst_range_t range_VisibleString = {
{ ARE_VALUE, 0, 0x20 },
{ ARE_VALUE, 0, 0x7e },
0, 0, 0, 0, 0, 0, 0 };
static asn1cnst_range_t range_UTCTime = {
{ ARE_VALUE, 0, 0x2b },
{ ARE_VALUE, 0, 0x5a },
range_UTCTime_array,
sizeof(range_UTCTime_array)
/sizeof(range_UTCTime_array[0]),
0, 0, 0, 0, 1 };
static asn1cnst_range_t range_GeneralizedTime = {
{ ARE_VALUE, 0, 0x2b },
{ ARE_VALUE, 0, 0x5a },
range_GeneralizedTime_array,
sizeof(range_GeneralizedTime_array)
/sizeof(range_GeneralizedTime_array[0]),
0, 0, 0, 0, 1 };
switch(expr_type) {
case ASN_STRING_NumericString:
return &range_NumericString;
case ASN_STRING_PrintableString:
return &range_PrintableString;
case ASN_STRING_VisibleString:
return &range_VisibleString;
case ASN_STRING_IA5String:
return &range_uint7;
case ASN_STRING_BMPString:
return &range_bmp;
case ASN_STRING_UTF8String:
/*
* X.691, #9.3.6
* Not a known-multipler character string type.
*/
assert(range_utf8.not_PER_visible);
return &range_utf8;
case ASN_STRING_UniversalString:
return &range_uint31;
case ASN_BASIC_UTCTime:
/* Permitted alphabet constraint is not applicable */
assert(range_UTCTime.not_PER_visible);
return &range_UTCTime;
case ASN_BASIC_GeneralizedTime:
/* Permitted alphabet constraint is not applicable */
assert(range_GeneralizedTime.not_PER_visible);
return &range_GeneralizedTime;
case ASN_BASIC_OCTET_STRING:
/*
* Permitted alphabet constraint is not applicable
* to this type. However, we support it, albeit not
* in a strict PER mode.
*/
assert(range_octstr.not_PER_visible);
return &range_octstr;
default:
if(!(expr_type & ASN_STRING_MASK))
break;
assert(expr_type & ASN_STRING_NKM_MASK);
/*
* X.691, 9.3.6
* Not a known-multiplier character string.
*/
return &range_notPERVisible;
}
return NULL;
}
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