dlls/msasn1/main.c

   1 /*
   2  * Copyright 2014 Austin English
   3  * Copyright 2020 Vijay Kiran Kamuju
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20
  21 #include <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "msasn1.h"
  26
  27 #include "wine/heap.h"
  28 #include "wine/debug.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(msasn1);
  31
  32 ASN1module_t WINAPI ASN1_CreateModule(ASN1uint32_t ver, ASN1encodingrule_e rule, ASN1uint32_t flags,
  33                                       ASN1uint32_t pdu, const ASN1GenericFun_t encoder[],
  34                                       const ASN1GenericFun_t decoder[], const ASN1FreeFun_t freemem[],
  35                                       const ASN1uint32_t size[], ASN1magic_t magic)
  36 {
  37     ASN1module_t module = NULL;
  38
  39     TRACE("(%08x %08x %08x %u %p %p %p %p %u)\n", ver, rule, flags, pdu, encoder, decoder, freemem, size, magic);
  40
  41     if (!encoder || !decoder || !freemem || !size)
  42         return module;
  43
  44     module = heap_alloc(sizeof(*module));
  45     if (module)
  46     {
  47         module->nModuleName = magic;
  48         module->eRule = rule;
  49         module->dwFlags = flags;
  50         module->cPDUs = pdu;
  51         module->apfnFreeMemory = freemem;
  52         module->acbStructSize = size;
  53
  54         if (rule & ASN1_PER_RULE)
  55         {
  56             module->PER.apfnEncoder = (ASN1PerEncFun_t *)encoder;
  57             module->PER.apfnDecoder = (ASN1PerDecFun_t *)decoder;
  58         }
  59         else if (rule & ASN1_BER_RULE)
  60         {
  61             module->BER.apfnEncoder = (ASN1BerEncFun_t *)encoder;
  62             module->BER.apfnDecoder = (ASN1BerDecFun_t *)decoder;
  63         }
  64         else
  65         {
  66             module->PER.apfnEncoder = NULL;
  67             module->PER.apfnDecoder = NULL;
  68         }
  69     }
  70
  71     return module;
  72 }
  73
  74 void WINAPI ASN1_CloseModule(ASN1module_t module)
  75 {
  76     TRACE("(%p)\n", module);
  77
  78     heap_free(module);
  79 }
  80
  81 ASN1error_e WINAPI ASN1_CreateEncoder(ASN1module_t module, ASN1encoding_t *encoder, ASN1octet_t *buf,
  82                                       ASN1uint32_t bufsize, ASN1encoding_t parent)
  83 {
  84     ASN1encoding_t enc;
  85
  86     TRACE("(%p %p %p %u %p)\n", module, encoder, buf, bufsize, parent);
  87
  88     if (!module || !encoder)
  89         return ASN1_ERR_BADARGS;
  90
  91     enc = heap_alloc(sizeof(*enc));
  92     if (!enc)
  93     {
  94         return ASN1_ERR_MEMORY;
  95     }
  96
  97     if (parent)
  98       FIXME("parent not implemented.\n");
  99
 100     enc->magic = 0x44434e45;
 101     enc->version = 0;
 102     enc->module = module;
 103     enc->buf = 0;
 104     enc->size = 0;
 105     enc->len = 0;
 106     enc->err = ASN1_SUCCESS;
 107     enc->bit = 0;
 108     enc->pos = 0;
 109     enc->cbExtraHeader = 0;
 110     enc->eRule = module->eRule;
 111     enc->dwFlags = module->dwFlags;
 112
 113     if (buf && bufsize)
 114     {
 115         enc->buf = buf;
 116         enc->pos = buf;
 117         enc->size = bufsize;
 118         enc->dwFlags |= ASN1ENCODE_SETBUFFER;
 119     }
 120
 121     *encoder = enc;
 122
 123     return ASN1_SUCCESS;
 124 }
 125
 126 void WINAPI ASN1_CloseEncoder(ASN1encoding_t encoder)
 127 {
 128     FIXME("(%p): Stub!\n", encoder);
 129 }
 130
 131 ASN1error_e WINAPI ASN1_CreateDecoder(ASN1module_t module, ASN1decoding_t *decoder, ASN1octet_t *buf,
 132                                       ASN1uint32_t bufsize, ASN1decoding_t parent)
 133 {
 134     ASN1decoding_t dec;
 135
 136     TRACE("(%p %p %p %u %p)\n", module, decoder, buf, bufsize, parent);
 137
 138     if (!module || !decoder)
 139         return ASN1_ERR_BADARGS;
 140
 141     dec = heap_alloc(sizeof(*dec));
 142     if (!dec)
 143     {
 144         return ASN1_ERR_MEMORY;
 145     }
 146
 147     if (parent)
 148       FIXME("parent not implemented.\n");
 149
 150     dec->magic = 0x44434544;
 151     dec->version = 0;
 152     dec->module = module;
 153     dec->buf = 0;
 154     dec->size = bufsize;
 155     dec->len = 0;
 156     dec->err = ASN1_SUCCESS;
 157     dec->bit = 0;
 158     dec->pos = 0;
 159     dec->eRule = module->eRule;
 160     dec->dwFlags = module->dwFlags;
 161
 162     if (buf)
 163     {
 164         dec->buf = buf;
 165         dec->pos = buf;
 166         dec->dwFlags |= ASN1DECODE_SETBUFFER;
 167     }
 168
 169     *decoder = dec;
 170
 171     return ASN1_SUCCESS;
 172 }
 173
 174 void WINAPI ASN1_CloseDecoder(ASN1decoding_t decoder)
 175 {
 176     FIXME("(%p): Stub!\n", decoder);
 177 }
 178
 179 ASN1error_e WINAPI ASN1_Decode(ASN1decoding_t decoder, void **outdata, ASN1uint32_t pdunum,
 180                                ASN1uint32_t flags, ASN1octet_t *buf, ASN1uint32_t bufsize)
 181 {
 182     FIXME("(%p %p %u %08x %p %u): Stub!\n", decoder, outdata, pdunum, flags, buf, bufsize);
 183
 184     if (!decoder)
 185         return ASN1_ERR_BADARGS;
 186
 187     if (!buf || !bufsize)
 188     {
 189         decoder->err = ASN1_ERR_BADARGS;
 190         return ASN1_ERR_BADARGS;
 191     }
 192
 193     decoder->err = ASN1_ERR_BADPDU;
 194     return ASN1_ERR_BADPDU;
 195 }