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/* /////////////////////////////////////////////////////////////////////////
* File: winstl/security/token_information.hpp
*
* Purpose: Helper for accessing token information.
*
* Created: 20th June 2003
* Updated: 10th August 2009
*
* Home: http://stlsoft.org/
*
* Copyright (c) 2003-2009, Matthew Wilson and Synesis Software
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of
* any contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ////////////////////////////////////////////////////////////////////// */
/** \file winstl/security/token_information.hpp
*
* \brief [C++ only] Definition of the winstl::token_information class
* (\ref group__library__security "Security" Library).
*/
#ifndef WINSTL_INCL_WINSTL_SECURITY_HPP_TOKEN_INFORMATION
#define WINSTL_INCL_WINSTL_SECURITY_HPP_TOKEN_INFORMATION
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
# define WINSTL_VER_WINSTL_SECURITY_HPP_TOKEN_INFORMATION_MAJOR 4
# define WINSTL_VER_WINSTL_SECURITY_HPP_TOKEN_INFORMATION_MINOR 1
# define WINSTL_VER_WINSTL_SECURITY_HPP_TOKEN_INFORMATION_REVISION 1
# define WINSTL_VER_WINSTL_SECURITY_HPP_TOKEN_INFORMATION_EDIT 53
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
/* /////////////////////////////////////////////////////////////////////////
* Includes
*/
#ifndef WINSTL_INCL_WINSTL_H_WINSTL
# include <winstl/winstl.h>
#endif /* !WINSTL_INCL_WINSTL_H_WINSTL */
#ifndef WINSTL_INCL_WINSTL_MEMORY_HPP_PROCESSHEAP_ALLOCATOR
# include <winstl/memory/processheap_allocator.hpp>
#endif /* !WINSTL_INCL_WINSTL_MEMORY_HPP_PROCESSHEAP_ALLOCATOR */
#ifndef STLSOFT_INCL_STLSOFT_ERROR_HPP_EXCEPTIONS
# include <stlsoft/error/exceptions.hpp> // for null_exception_policy
#endif /* !STLSOFT_INCL_STLSOFT_ERROR_HPP_EXCEPTIONS */
#ifndef WINSTL_INCL_WINSTL_ERROR_HPP_LAST_ERROR_SCOPE
# include <winstl/error/last_error_scope.hpp>
#endif /* !WINSTL_INCL_WINSTL_ERROR_HPP_LAST_ERROR_SCOPE */
/* /////////////////////////////////////////////////////////////////////////
* Namespace
*/
#ifndef _WINSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
/* There is no stlsoft namespace, so must define ::winstl */
namespace winstl
{
# else
/* Define stlsoft::winstl_project */
namespace stlsoft
{
namespace winstl_project
{
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_WINSTL_NO_NAMESPACE */
/* ////////////////////////////////////////////////////////////////////// */
enum
{
TokenRestrictedSids = 1 + TokenStatistics
, TokenSessionId
, TokenGroupsAndPrivileges
, TokenSessionReference
, TokenSandBoxInert
, TokenAuditPolicy
, TokenOrigin
};
/* /////////////////////////////////////////////////////////////////////////
* Classes
*/
/** \brief traits type used to determine the data type for a given \c TOKEN_INFORMATION_CLASS
*
* \ingroup group__library__security
*
*/
template <TOKEN_INFORMATION_CLASS C>
struct token_information_traits;
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenUser>
{
typedef TOKEN_USER data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenGroups>
{
typedef TOKEN_GROUPS data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenPrivileges>
{
typedef TOKEN_PRIVILEGES data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenOwner>
{
typedef TOKEN_OWNER data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenPrimaryGroup>
{
typedef TOKEN_PRIMARY_GROUP data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenDefaultDacl>
{
typedef TOKEN_DEFAULT_DACL data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenSource>
{
typedef TOKEN_SOURCE data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenType>
{
typedef TOKEN_TYPE data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenImpersonationLevel>
{
typedef SECURITY_IMPERSONATION_LEVEL data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<TokenStatistics>
{
typedef TOKEN_STATISTICS data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<static_cast<TOKEN_INFORMATION_CLASS>(TokenRestrictedSids)>
{
typedef TOKEN_GROUPS data_type;
};
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<static_cast<TOKEN_INFORMATION_CLASS>(TokenSessionId)>
{
typedef DWORD data_type;
};
#if defined(WINSTL_TOKEN_INFORMATION_TOKEN_GROUPS_AND_PRIVILEGES_SUPPORT) || \
( !defined(WINSTL_TOKEN_INFORMATION_NO_GUESS) && \
defined(SE_MANAGE_VOLUME_NAME))
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<static_cast<TOKEN_INFORMATION_CLASS>(TokenGroupsAndPrivileges)>
{
typedef TOKEN_GROUPS_AND_PRIVILEGES data_type;
};
#endif /* TOKEN_GROUPS_AND_PRIVILEGES */
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<static_cast<TOKEN_INFORMATION_CLASS>(TokenSandBoxInert)>
{
typedef DWORD data_type;
};
#if defined(WINSTL_TOKEN_INFORMATION_TOKEN_ORIGIN_SUPPORT) /* || \
( !defined(WINSTL_TOKEN_INFORMATION_NO_GUESS) && \
defined(SE_MANAGE_VOLUME_NAME)) */
STLSOFT_TEMPLATE_SPECIALISATION
struct token_information_traits<static_cast<TOKEN_INFORMATION_CLASS>(TokenOrigin)>
{
typedef TOKEN_ORIGIN data_type;
};
#endif /* TOKEN_ORIGIN */
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
// token_information
/** \brief Provides typed access to token information.
*
* \ingroup group__library__security
*/
template< TOKEN_INFORMATION_CLASS C
#ifdef STLSOFT_CF_TEMPLATE_CLASS_DEFAULT_CLASS_ARGUMENT_SUPPORT
# ifdef __SYNSOFT_DBS_COMPILER_SUPPORTS_PRAGMA_MESSAGE
# pragma message(_sscomp_fileline_message("Note that we have to have data_type as a parameter, otherwise VC5&6 have a cow"))
# endif /* __SYNSOFT_DBS_COMPILER_SUPPORTS_PRAGMA_MESSAGE */
, ss_typename_param_k X = stlsoft_ns_qual(null_exception_policy)
, ss_typename_param_k D = ss_typename_type_def_k token_information_traits<C>::data_type
, ss_typename_param_k A = processheap_allocator<ss_byte_t>
#else /* ? STLSOFT_CF_TEMPLATE_CLASS_DEFAULT_CLASS_ARGUMENT_SUPPORT */
, ss_typename_param_k X /* = stlsoft_ns_qual(null_exception_policy) */
, ss_typename_param_k D /* = token_information_traits<C>::data_type */
, ss_typename_param_k A /* = processheap_allocator<ss_byte_t> */
#endif /* STLSOFT_CF_TEMPLATE_CLASS_DEFAULT_CLASS_ARGUMENT_SUPPORT */
>
class token_information
{
/// \name Member Types
/// @{
public:
typedef token_information<C, X, D, A> class_type;
typedef token_information_traits<C> traits_type;
typedef X exception_thrower_type;
typedef D data_type;
typedef A allocator_type;
// typedef ss_typename_type_k traits_type::data_type data_type;
/// @}
/// \name Construction
/// @{
public:
/// \brief Constructs an instance from the given access token
///
ss_explicit_k token_information(HANDLE hToken)
: m_data(0)
{
DWORD cbRequired;
DWORD dwError;
::GetTokenInformation(hToken, C, NULL, 0, &cbRequired);
dwError = ::GetLastError();
if(ERROR_INSUFFICIENT_BUFFER != dwError)
{
// Report error
exception_thrower_type()(dwError);
}
else
{
data_type *data = reinterpret_cast<data_type*>(allocator_type().allocate(cbRequired));
if(NULL == data)
{
// Report error
exception_thrower_type()(ERROR_NOT_ENOUGH_MEMORY);
// Set the last error, in case the client code is not using exception reporting
::SetLastError(ERROR_NOT_ENOUGH_MEMORY);
}
else
{
if(!::GetTokenInformation(hToken, C, data, cbRequired, &cbRequired))
{
// Scope the last error, in case the client code is not using exception reporting
last_error_scope scope;
allocator_type().deallocate(reinterpret_cast<ss_byte_t*>(data));
// Report error
exception_thrower_type()(DWORD((scope)));
}
else
{
// Success
m_data = data;
::SetLastError(ERROR_SUCCESS);
}
}
}
}
~token_information() stlsoft_throw_0()
{
allocator_type().deallocate(reinterpret_cast<ss_byte_t*>(m_data));
}
/// @}
/// \name Conversion
/// @{
public:
operator data_type *()
{
return m_data;
}
operator data_type const* () const
{
return m_data;
}
data_type *operator ->()
{
return m_data;
}
data_type const* operator ->() const
{
return m_data;
}
/*
operator ws_bool_t () const
{
return 0 != m_data;
}
*/
ws_bool_t operator !() const
{
return 0 == m_data;
}
/// @}
/// \name Implementation
/// @{
private:
/// @}
/// \name Members
/// @{
private:
data_type *m_data;
/// @}
/// \name Not to be implemented
/// @{
private:
token_information(token_information const&);
token_information& operator =(token_information const&);
/// @}
};
/* ////////////////////////////////////////////////////////////////////// */
#ifndef _WINSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
} // namespace winstl
# else
} // namespace winstl_project
} // namespace stlsoft
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_WINSTL_NO_NAMESPACE */
/* ////////////////////////////////////////////////////////////////////// */
#endif /* WINSTL_INCL_WINSTL_SECURITY_HPP_TOKEN_INFORMATION */
/* ///////////////////////////// end of file //////////////////////////// */