Move the code to get Identity provider interfaces to its own platform independent module.
This commit is contained in:
Juan Carlos Luciani
parent
d5ffb104fb
commit
afb30e0f5f
265
auth_token/server/AuthTokenValidate/identoken.c
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265
auth_token/server/AuthTokenValidate/identoken.c
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/***********************************************************************
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*
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* Copyright (C) 2006 Novell, Inc. All Rights Reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, Novell, Inc.
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*
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* To contact Novell about this file by physical or electronic mail,
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* you may find current contact information at www.novell.com.
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*
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* Author: Juan Carlos Luciani <jluciani@novell.com>
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*
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***********************************************************************/
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//===[ Include files ]=====================================================
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#include "internal.h"
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//===[ Type definitions ]==================================================
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//
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// Identity Token Module definition
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//
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typedef struct _IdenTokenProviderModule
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{
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LIST_ENTRY listEntry;
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char *pTypeName;
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int typeNameLen;
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LIB_HANDLE libHandle;
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IdenTokenProviderIf *pIdenTokenProviderIf;
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} IdenTokenProviderModule, *PIdenTokenProviderModule;
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//===[ Function prototypes ]===============================================
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//===[ Global variables ]==================================================
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//
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// Module synchronization mutex
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//
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pthread_mutex_t g_hModuleMutex = PTHREAD_MUTEX_INITIALIZER;
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//
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// IdenTokenProviderModule list and syncronization mutex
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//
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static
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LIST_ENTRY g_IdenTokenProviderModuleListHead = {&g_IdenTokenProviderModuleListHead, &g_IdenTokenProviderModuleListHead};
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static
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pthread_mutex_t g_IdenTokenProviderModuleMutex = PTHREAD_MUTEX_INITIALIZER;
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//++=======================================================================
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CasaStatus
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GetIdenTokenProviderInterface(
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IN const char *pIdenTokenTypeName,
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INOUT IdenTokenProviderIf **ppIdenTokenProviderIf)
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//
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// Arguments:
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//
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// Returns:
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//
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// Abstract:
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//
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// Notes:
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//
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// Environment:
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//
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// L2
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//=======================================================================--
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{
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CasaStatus retStatus;
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ConfigIf *pModuleConfigIf;
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DbgTrace(2, "-GetIdenTokenProviderInterface- Start\n", 0);
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// Get the configuration for the module
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retStatus = GetConfigInterface("/etc/opt/novell/CASA/authtoken.d/modules.d",
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pIdenTokenTypeName,
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&pModuleConfigIf);
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if (CASA_SUCCESS(retStatus)
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&& CasaStatusCode(retStatus) != CASA_STATUS_OBJECT_NOT_FOUND)
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{
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LIST_ENTRY *pListEntry;
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IdenTokenProviderModule *pIdenTokenProviderModule = NULL;
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int32_t idenTokenTypeNameLen = strlen(pIdenTokenTypeName);
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// Gain exclusive access to our mutex
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pthread_mutex_lock(&g_IdenTokenProviderModuleMutex);
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// Look if we already have the module in our list
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pListEntry = g_IdenTokenProviderModuleListHead.Flink;
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while (pListEntry != &g_IdenTokenProviderModuleListHead)
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{
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// Get pointer to the current entry
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pIdenTokenProviderModule = CONTAINING_RECORD(pListEntry, IdenTokenProviderModule, listEntry);
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// Check if this is the module that we need
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if (pIdenTokenProviderModule->typeNameLen == idenTokenTypeNameLen
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&& memcmp(pIdenTokenTypeName, pIdenTokenProviderModule->pTypeName, idenTokenTypeNameLen) == 0)
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{
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// This is the module that we need, stop looking.
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break;
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}
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else
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{
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// This is not the module that we are looking for
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pIdenTokenProviderModule = NULL;
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}
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// Advance to the next entry
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pListEntry = pListEntry->Flink;
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}
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// Proceed based on whether or not a module was found
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if (pIdenTokenProviderModule)
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{
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// Module found in our list, provide the caller with its IdenTokenProviderIf
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// instance after we have incremented its reference count.
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pIdenTokenProviderModule->pIdenTokenProviderIf->addReference(pIdenTokenProviderModule->pIdenTokenProviderIf);
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*ppIdenTokenProviderIf = pIdenTokenProviderModule->pIdenTokenProviderIf;
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// Success
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retStatus = CASA_STATUS_SUCCESS;
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}
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else
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{
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// Needed module not found in our list, create an entry.
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pIdenTokenProviderModule = malloc(sizeof(*pIdenTokenProviderModule));
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if (pIdenTokenProviderModule)
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{
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// Allocate buffer to contain the authentication type name within the module entry
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pIdenTokenProviderModule->pTypeName = malloc(idenTokenTypeNameLen + 1);
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if (pIdenTokenProviderModule->pTypeName)
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{
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char *pLibraryName;
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// Initialize the library handle field
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pIdenTokenProviderModule->libHandle = NULL;
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// Save the auth type name within the entry
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strcpy(pIdenTokenProviderModule->pTypeName, pIdenTokenTypeName);
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pIdenTokenProviderModule->typeNameLen = idenTokenTypeNameLen;
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// Obtain the name of the library that we must load
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pLibraryName = pModuleConfigIf->getEntryValue(pModuleConfigIf, "LibraryName");
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if (pLibraryName)
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{
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// Load the library
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pIdenTokenProviderModule->libHandle = OpenLibrary(pLibraryName);
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if (pIdenTokenProviderModule->libHandle)
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{
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PFN_GetIdenTokenProviderIfRtn pGetIdenTokenProviderIfRtn;
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// Library has been loaded, now get a pointer to its GetIdenTokenProviderProviderInterface routine
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pGetIdenTokenProviderIfRtn = (PFN_GetIdenTokenProviderIfRtn) GetFunctionPtr(pIdenTokenProviderModule->libHandle,
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GET_IDEN_TOKEN_PROVIDER_INTERFACE_RTN_SYMBOL);
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if (pGetIdenTokenProviderIfRtn)
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{
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// Now, obtain the modules IdenTokenProviderIf.
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retStatus = (pGetIdenTokenProviderIfRtn)(pModuleConfigIf, &pIdenTokenProviderModule->pIdenTokenProviderIf);
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}
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else
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{
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DbgTrace(0, "-GetIdenTokenProviderInterface- GetFunctionPtr error\n", 0);
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retStatus = CasaStatusBuild(CASA_SEVERITY_ERROR,
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CASA_FACILITY_AUTHTOKEN,
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CASA_STATUS_LIBRARY_LOAD_FAILURE);
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}
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}
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else
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{
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DbgTrace(0, "-GetIdenTokenProviderInterface- OpenLibrary error\n", 0);
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retStatus = CasaStatusBuild(CASA_SEVERITY_ERROR,
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CASA_FACILITY_AUTHTOKEN,
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CASA_STATUS_LIBRARY_LOAD_FAILURE);
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}
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// Free the buffer holding the library name
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free(pLibraryName);
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}
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else
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{
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DbgTrace(0, "-GetIdenTokenProviderInterface- Library name not configured\n", 0);
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retStatus = CasaStatusBuild(CASA_SEVERITY_ERROR,
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CASA_FACILITY_AUTHTOKEN,
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CASA_STATUS_CONFIGURATION_ERROR);
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}
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// Check if we were successful at obtaining the IdenTokenProviderIf instance for the
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// module.
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if (CASA_SUCCESS(retStatus))
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{
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// Insert the entry in the list, provide the caller with its IdenTokenProviderIf
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// instance after we have incremented its reference count.
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InsertTailList(&g_IdenTokenProviderModuleListHead, &pIdenTokenProviderModule->listEntry);
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pIdenTokenProviderModule->pIdenTokenProviderIf->addReference(pIdenTokenProviderModule->pIdenTokenProviderIf);
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*ppIdenTokenProviderIf = pIdenTokenProviderModule->pIdenTokenProviderIf;
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}
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else
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{
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// Failed, free resources.
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free(pIdenTokenProviderModule->pTypeName);
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if (pIdenTokenProviderModule->libHandle)
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CloseLibrary(pIdenTokenProviderModule->libHandle);
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free(pIdenTokenProviderModule);
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}
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}
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else
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{
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DbgTrace(0, "-GetIdenTokenProviderInterface- Unable to allocate buffer\n", 0);
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// Free buffer allocated for entry
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free(pIdenTokenProviderModule);
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retStatus = CasaStatusBuild(CASA_SEVERITY_ERROR,
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CASA_FACILITY_AUTHTOKEN,
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CASA_STATUS_INSUFFICIENT_RESOURCES);
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}
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}
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else
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{
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DbgTrace(0, "-GetIdenTokenProviderInterface- Unable to allocate buffer\n", 0);
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retStatus = CasaStatusBuild(CASA_SEVERITY_ERROR,
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CASA_FACILITY_AUTHTOKEN,
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CASA_STATUS_INSUFFICIENT_RESOURCES);
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}
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}
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// Release exclusive access to our mutex
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pthread_mutex_unlock(&g_IdenTokenProviderModuleMutex);
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// Release config interface instance
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pModuleConfigIf->releaseReference(pModuleConfigIf);
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}
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else
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{
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DbgTrace(0, "-GetIdenTokenProviderInterface- Unable to obtain config interface\n", 0);
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retStatus = CasaStatusBuild(CASA_SEVERITY_ERROR,
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CASA_FACILITY_AUTHTOKEN,
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CASA_STATUS_CONFIGURATION_ERROR);
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}
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DbgTrace(2, "-GetIdenTokenProviderInterface- End, retStatus = %08X\n", retStatus);
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return retStatus;
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}
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//++=======================================================================
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//++=======================================================================
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//++=======================================================================
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ConfigIfUninit(void);
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ConfigIfUninit(void);
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//
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//
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// Functions exported by platform.c
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// Functions exported by identoken.c
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//
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//
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extern
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extern
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@ -95,6 +95,10 @@ GetIdenTokenProviderInterface(
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IN const char *pIdenTokenTypeName,
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IN const char *pIdenTokenTypeName,
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INOUT IdenTokenProviderIf **ppIdenTokenProviderIf);
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INOUT IdenTokenProviderIf **ppIdenTokenProviderIf);
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//
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// Functions exported by platform.c
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//
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extern
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extern
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HANDLE
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HANDLE
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PlatAllocMutex(void);
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PlatAllocMutex(void);
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void
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void
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PlatReleaseMutex(HANDLE hMutex);
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PlatReleaseMutex(HANDLE hMutex);
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extern
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LIB_HANDLE
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OpenLibrary(
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IN char *pFileName);
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extern
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void
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CloseLibrary(
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IN LIB_HANDLE libHandle);
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extern
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void*
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GetFunctionPtr(
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IN LIB_HANDLE libHandle,
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IN char *pFunctionName);
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//
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//
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// Functions exported by principal.c
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// Functions exported by principal.c
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//
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//
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