122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/* Benjamin DELPY `gentilkiwi`
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http://blog.gentilkiwi.com
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benjamin@gentilkiwi.com
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Licence : https://creativecommons.org/licenses/by/4.0/
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*/
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#include "kull_m_asn1.h"
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ASN1module_t hASN1Module = NULL;
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ASN1encoding_t ASN1enc = NULL;
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ASN1decoding_t ASN1dec = NULL;
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void kull_m_asn1_BitStringFromULONG(BerElement * pBer, ULONG data)
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{
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BYTE flagBuffer[5] = {0};
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*(PDWORD) (flagBuffer + 1) = _byteswap_ulong(data);
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ber_printf(pBer, "X", flagBuffer, sizeof(flagBuffer));
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}
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void kull_m_asn1_GenTime(BerElement * pBer, PFILETIME localtime)
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{
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SYSTEMTIME st;
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char buffer[4 + 2 + 2 + 2 + 2 + 2 + 1 + 1];
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if(FileTimeToSystemTime(localtime, &st))
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if(sprintf_s(buffer, sizeof(buffer), "%04hu%02hu%02hu%02hu%02hu%02huZ", st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond) > 0)
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ber_printf(pBer, "to", DIRTY_ASN1_ID_GENERALIZED_TIME, buffer, sizeof(buffer) - 1);
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}
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void kull_m_asn1_GenString(BerElement * pBer, PCUNICODE_STRING String)
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{
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ANSI_STRING aString;
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if(NT_SUCCESS(RtlUnicodeStringToAnsiString(&aString, String, TRUE)))
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{
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ber_printf(pBer, "to", DIRTY_ASN1_ID_GENERAL_STRING, aString.Buffer, aString.Length);
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RtlFreeAnsiString(&aString);
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}
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}
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static const ASN1GenericFun_t kull_m_asn1_encdecfreefntab[] = {NULL};
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static const ASN1uint32_t kull_m_asn1_sizetab[] = {0};
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BOOL kull_m_asn1_init()
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{
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BOOL status = FALSE;
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int ret;
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if(hASN1Module = ASN1_CreateModule(ASN1_THIS_VERSION, ASN1_BER_RULE_DER, ASN1FLAGS_NOASSERT, 1, kull_m_asn1_encdecfreefntab, kull_m_asn1_encdecfreefntab, (const ASN1FreeFun_t *) kull_m_asn1_encdecfreefntab, kull_m_asn1_sizetab, 'iwik'))
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{
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ret = ASN1_CreateEncoder(hASN1Module, &ASN1enc, NULL, 0, NULL);
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if(ASN1_FAILED(ret))
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{
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PRINT_ERROR(L"ASN1_CreateEncoder: %i\n", ret);
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ASN1enc = NULL;
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}
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else
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{
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ret = ASN1_CreateDecoder(hASN1Module, &ASN1dec, NULL, 0, NULL);
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if(ASN1_FAILED(ret))
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{
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PRINT_ERROR(L"ASN1_CreateDecoder: %i\n", ret);
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ASN1dec = NULL;
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}
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}
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}
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else PRINT_ERROR(L"ASN1_CreateModule\n");
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status = hASN1Module && ASN1enc && ASN1dec;
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if(!status)
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kull_m_asn1_term();
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return status;
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}
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void kull_m_asn1_term()
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{
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if(ASN1dec)
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{
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ASN1_CloseDecoder(ASN1dec);
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ASN1dec = NULL;
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}
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if(ASN1enc)
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{
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ASN1_CloseEncoder(ASN1enc);
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ASN1enc = NULL;
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}
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if(hASN1Module)
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{
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ASN1_CloseModule(hASN1Module);
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hASN1Module = NULL;
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}
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}
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BOOL kull_m_asn1_DotVal2Eoid(__in const ASN1char_t *dotOID, __out OssEncodedOID *encodedOID)
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{
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BOOL status = FALSE;
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if(ASN1enc && dotOID && encodedOID)
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{
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encodedOID->length = 0;
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encodedOID->value = NULL;
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status = ASN1BERDotVal2Eoid(ASN1enc, dotOID, encodedOID);
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}
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return status;
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}
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void kull_m_asn1_freeEnc(void *pBuf)
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{
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if(ASN1enc && pBuf)
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ASN1_FreeEncoded(ASN1enc, pBuf);
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}
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BOOL kull_m_asn1_Eoid2DotVal(__in const OssEncodedOID *encodedOID, __out ASN1char_t **dotOID)
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{
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BOOL status = FALSE;
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if(ASN1dec && encodedOID && dotOID)
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{
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*dotOID = NULL;
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status = ASN1BEREoid2DotVal(ASN1dec, encodedOID, dotOID);
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}
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return status;
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}
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void kull_m_asn1_freeDec(void *pBuf)
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{
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if(pBuf)
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ASN1Free(pBuf);
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} |