zdmparams.c

IBE是一种非对称密码技术

/* Copyright 2003-2006, Voltage Security, all rights reserved.
 */
#include "vibe.h"
#include "environment.h"
#include "base.h"
#include "libctx.h"
#include "securemail.h"
#include "zdm.h"
#include "p7obj.h"
#include "stringutil.h"
#include "errorctx.h"
#include "vtassert.h"

int VoltZDMSetParamError (
   VtZDMObject zdmObj,
   int paramSelector,
   Pointer setInfo
   )
{
  VOLT_DECLARE_FNCT_LINE (fnctLine)

  VOLT_SET_FNCT_LINE (fnctLine)
  VOLT_LOG_ERROR_INFO (
    0, zdmObj, VT_ERROR_INVALID_SET, 0, VT_ERROR_TYPE_PRIMARY,
    (char *)0, "VoltZDMSetParamError", fnctLine, (char *)0)

  return (VT_ERROR_INVALID_SET);
}

int VoltOldZDMSetParamWrite (
   VtZDMObject zdmObj,
   int paramSelector,
   Pointer setInfo
   )
{
  int status;
  unsigned int typeFlag, valueLen;
  VoltZDMObject *zObj = (VoltZDMObject *)zdmObj;
  VoltLibCtx *libCtx = zdmObj->voltObject.libraryCtx;
  VoltSecureMailObject *obj = (VoltSecureMailObject *)(zObj->localCtx);
  VoltSecureMailWriteCtx *writeCtx = (VoltSecureMailWriteCtx *)0;
  VoltSecureMailReadCtx *readCtx = (VoltSecureMailReadCtx *)0;
  VOLT_DECLARE_ERROR_TYPE (errorType)
  VOLT_DECLARE_FNCT_LINE (fnctLine)

  if ((obj->state & VOLT_SECURE_MAIL_STATE_WRITE) != 0)
    writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);
  else
    readCtx = (VoltSecureMailReadCtx *)(obj->localCtx);

  switch (paramSelector)
  {
    case VT_ZDM_PARAM_MESSAGE_TYPE:

      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* The associated info is a pointer to an unsigned int.
       * What type is indicated?
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ASSOCIATED_INFO;
      typeFlag = *((unsigned int *)setInfo);
      if (typeFlag == VT_ZDM_MAIL)
        obj->formatType = VOLT_MESSAGE_FORMAT_ZDM_MAIL;
      else if (typeFlag == VT_ZDM_ATTACHMENT)
        obj->formatType = VOLT_MESSAGE_FORMAT_ZDM_ATTACHMENT;
      else
        break;

      status = 0;
      break;

    case VT_ZDM_PARAM_SENDER_ID:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);

      /* There can be only one sender.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      if (writeCtx->senderFlag != 0)
        break;

      /* Send this identity object on to the p7Signer. This will check
       * the validity of the associatedInfo.
       */
      VOLT_SET_ERROR_TYPE (errorType, 0)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtSetPkcs7Param (
        obj->p7SignedData, VtPkcs7ParamSignerId, setInfo);

      writeCtx->senderFlag = 1;

      /* Get a reference to the sender ID.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VoltGetSignerIdObjRef (
        obj->p7SignedData, 0, (VtIdentityObject *)&(writeCtx->senderIdRef));
      if (status == VT_ERROR_NO_ID_AT_INDEX)
        status = VT_ERROR_INVALID_ASSOCIATED_INFO;

      break;

    case VT_ZDM_PARAM_SENDER_INFO:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);

      /* There can be only one sender.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      if (writeCtx->senderFlag != 0)
        break;

      /* Send this sender info on to the p7Signer. This will check
       * the validity of the associatedInfo.
       */
      VOLT_SET_ERROR_TYPE (errorType, 0)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtSetPkcs7Param (
        obj->p7SignedData, VtPkcs7ParamSignerInfo, setInfo);
      if (status != 0)
        break;

      writeCtx->senderFlag = 1;

      /* We need a reference to the signer's ID object.
       * For ZDM, there must be a sender Identity object.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VoltGetSignerIdObjRef (
        obj->p7SignedData, 0, (VtIdentityObject *)&(writeCtx->senderIdRef));
      if (status == VT_ERROR_NO_ID_AT_INDEX)
        status = VT_ERROR_INVALID_ASSOCIATED_INFO;

      break;

    case VT_ZDM_PARAM_RECIPIENT_LIST:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* Set the enveloper with this list.
       */
      VOLT_SET_ERROR_TYPE (errorType, 0)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtSetPkcs7Param (
        obj->p7EnvelopedData, VtPkcs7ParamRecipientList, setInfo);
      if (status != 0)
        break;

      writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);

      /* We need a reference to the recipient list.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtGetPkcs7Param (
        obj->p7EnvelopedData, VtPkcs7ParamRecipientList,
        (Pointer *)&(writeCtx->recipListRef));

      break;

    case VT_ZDM_PARAM_RECIPIENT_INFO_LIST:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* Set the enveloper with this list.
       */
      VOLT_SET_ERROR_TYPE (errorType, 0)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtSetPkcs7Param (
        obj->p7EnvelopedData, VtPkcs7ParamRecipientInfoList, setInfo);
      if (status != 0)
        break;

      /* We need a reference to the recipient list.
       */
      writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtGetPkcs7Param (
        obj->p7EnvelopedData, VtPkcs7ParamRecipientList,
        (Pointer *)&(writeCtx->recipListRef));

      break;

    case VT_ZDM_PARAM_AES128CBC:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* Set the enveloper with AES.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtSetPkcs7Param (
        obj->p7EnvelopedData, VtPkcs7ParamEnvAES128CBC, setInfo);

      break;

    case VT_ZDM_PARAM_3DESCBC:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* Set the enveloper with AES.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtSetPkcs7Param (
        obj->p7EnvelopedData, VtPkcs7ParamEnv3DESCBC, setInfo);

      break;

    case VT_ZDM_PARAM_NEW_LINE_CHAR:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* The associated info is a pointer to an unsigned int.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ASSOCIATED_INFO;
      typeFlag = *((unsigned int *)setInfo);
      if ( (typeFlag != VT_SECURE_MAIL_NEW_LINE_LF) &&
           (typeFlag != VT_SECURE_MAIL_NEW_LINE_CR_LF) )
        break;

      writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);

      /* We initialized the buffer holding the new line chars to be
       * CR_LF. So there's enough space in there to hold whatever is
       * requested.
       */
      status = 0;
      if (typeFlag == VT_SECURE_MAIL_NEW_LINE_CR_LF)
      {
        writeCtx->itemArray[VOLT_WRITE_SM_ITEM_NEW_LINE].data[0] = 0x0d;
        writeCtx->itemArray[VOLT_WRITE_SM_ITEM_NEW_LINE].data[1] = 0x0a;
        writeCtx->itemArray[VOLT_WRITE_SM_ITEM_NEW_LINE].len = 2;
        break;
      }

      /* The caller wants LF.
       */
      writeCtx->itemArray[VOLT_WRITE_SM_ITEM_NEW_LINE].data[0] = 0x0a;
      writeCtx->itemArray[VOLT_WRITE_SM_ITEM_NEW_LINE].len = 1;
      break;

    case VT_ZDM_PARAM_DATA_LEN:
      /* The SecureMail object must not be set with dataLen yet.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->dataLen != 0)
        break;

      /* The SecureMail object must be set to write.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_CALL_ORDER;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* The info should be an unsigned int.
       */
      obj->dataLen = *((unsigned int *)setInfo);
#if VT_64_BIT_LENGTH == 64
      obj->dataLen64 = (VtUInt64)(obj->dataLen);
#endif
      status = 0;
      break;

#if VT_64_BIT_LENGTH == 64
    case VT_ZDM_PARAM_DATA_LEN_64:
      /* The SecureMail object must not be set with dataLen yet.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if ( (obj->dataLen != 0) || (obj->dataLen64 != 0) )
        break;

      /* The object must be set to write.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_CALL_ORDER;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* The info should be a VtUInt64.
       */
      obj->dataLen64 = *((VtUInt64 *)setInfo);
      status = 0;
      break;
#endif

    case VT_ZDM_PARAM_FILE_NAME:
      /* The SecureMail object must be set to write ZDM attachment.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_CALL_ORDER;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->formatType != VOLT_MESSAGE_FORMAT_ZDM_ATTACHMENT)
        break;

      /* Make sure the ctx does not yet have the file name set.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_SECURE_FILE_OBJ;
      if (writeCtx->fileName.data != (unsigned char *)0)
        break;

      /* The info should be an unsigned char *.
       */
      typeFlag = Z2Strlen (setInfo);

      /* Build a buffer with the file name. Add a NULL-terminating
       * character.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_MEMORY;
      writeCtx->fileName.data = (unsigned char *)Z2Malloc (typeFlag + 1, 0);
      if (writeCtx->fileName.data == (unsigned char *)0)
        break;
      Z2Memcpy (writeCtx->fileName.data, setInfo, typeFlag);
      writeCtx->fileName.data[typeFlag] = 0;
      writeCtx->fileName.len = typeFlag;

      status = 0;
      break;

    case VT_ZDM_PARAM_CONTENT_TYPE:
      /* The SecureMail object must be set to write.
       */
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* If there's already a content-type in the contentInfo, error.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->contentInfo.data != (unsigned char *)0)
        break;

      /* How long is the input value.
       */
      valueLen = Z2Strlen (setInfo);

      /* Copy it into the object.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_MEMORY;
      obj->contentInfo.data = (unsigned char *)Z2Malloc (valueLen + 1, 0);
      if (obj->contentInfo.data == (unsigned char *)0)
        break;
      Z2Memcpy (obj->contentInfo.data, setInfo, valueLen + 1);

      /* We'll write out everything except the NULL-terminating
       * character.
       */
      obj->contentInfo.len = valueLen;

      status = 0;
      break;

    case VT_ZDM_PARAM_SUBJECT_LINE:
      VOLT_SET_ERROR_TYPE (errorType, VT_ERROR_TYPE_PRIMARY)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_INVALID_ZDM_OBJ;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);

      /* If there's already a subject, error.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      if (writeCtx->itemArray[VOLT_WRITE_SM_ITEM_SUBJECT].data !=
        (unsigned char *)0)
        break;

      /* How long is the input value.
       */
      valueLen = Z2Strlen (setInfo);

      /* Copy it into the writeCtx->itemArray.
       */
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VT_ERROR_MEMORY;
      writeCtx->itemArray[VOLT_WRITE_SM_ITEM_SUBJECT].data =
        (unsigned char *)Z2Malloc (valueLen, 0);
      if (writeCtx->itemArray[VOLT_WRITE_SM_ITEM_SUBJECT].data ==
        (unsigned char *)0)
        break;
      Z2Memcpy (
        writeCtx->itemArray[VOLT_WRITE_SM_ITEM_SUBJECT].data, setInfo,
        valueLen);

      writeCtx->itemArray[VOLT_WRITE_SM_ITEM_SUBJECT].len = valueLen;

      status = 0;
      break;

    case VT_ZDM_PARAM_SURRENDER_CALLBACK:
      VOLT_SET_ERROR_TYPE (errorType, 0)
      VOLT_SET_FNCT_LINE (fnctLine)
      status = VoltSetObjectSurrender (
        (VoltObject *)obj, setInfo, 0, 0, 0);
      if (status != 0)
        break;

      VOLT_SET_FNCT_LINE (fnctLine)
      status = VtSetPkcs7Param (
        obj->p7SignedData, VtPkcs7ParamSurrenderCallback, setInfo);
      if (status != 0)
        break;

      VOLT_SET_FNCT_LINE (fnctLine)