7da636cad5
Prior to this change the build number was not checked during version comparison, and the platform id was supposed to be checked but wasn't. Checking the build number is required for enabling "evergreen" Windows 10/11 features (like TLS 1.3). Ref: https://github.com/curl/curl/pull/7784 Closes https://github.com/curl/curl/pull/7824 Closes https://github.com/curl/curl/pull/7867
238 lines
7.0 KiB
C
238 lines
7.0 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "curl_setup.h"
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#ifdef USE_WINDOWS_SSPI
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#include <curl/curl.h>
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#include "curl_sspi.h"
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#include "curl_multibyte.h"
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#include "system_win32.h"
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#include "version_win32.h"
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#include "warnless.h"
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/* The last #include files should be: */
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#include "curl_memory.h"
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#include "memdebug.h"
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/* We use our own typedef here since some headers might lack these */
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typedef PSecurityFunctionTable (APIENTRY *INITSECURITYINTERFACE_FN)(VOID);
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/* See definition of SECURITY_ENTRYPOINT in sspi.h */
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#ifdef UNICODE
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# ifdef _WIN32_WCE
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# define SECURITYENTRYPOINT L"InitSecurityInterfaceW"
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# else
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# define SECURITYENTRYPOINT "InitSecurityInterfaceW"
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# endif
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#else
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# define SECURITYENTRYPOINT "InitSecurityInterfaceA"
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#endif
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/* Handle of security.dll or secur32.dll, depending on Windows version */
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HMODULE s_hSecDll = NULL;
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/* Pointer to SSPI dispatch table */
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PSecurityFunctionTable s_pSecFn = NULL;
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/*
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* Curl_sspi_global_init()
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*
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* This is used to load the Security Service Provider Interface (SSPI)
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* dynamic link library portably across all Windows versions, without
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* the need to directly link libcurl, nor the application using it, at
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* build time.
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*
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* Once this function has been executed, Windows SSPI functions can be
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* called through the Security Service Provider Interface dispatch table.
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*
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* Parameters:
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*
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* None.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_sspi_global_init(void)
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{
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INITSECURITYINTERFACE_FN pInitSecurityInterface;
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/* If security interface is not yet initialized try to do this */
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if(!s_hSecDll) {
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/* Security Service Provider Interface (SSPI) functions are located in
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* security.dll on WinNT 4.0 and in secur32.dll on Win9x. Win2K and XP
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* have both these DLLs (security.dll forwards calls to secur32.dll) */
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/* Load SSPI dll into the address space of the calling process */
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if(curlx_verify_windows_version(4, 0, 0, PLATFORM_WINNT, VERSION_EQUAL))
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s_hSecDll = Curl_load_library(TEXT("security.dll"));
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else
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s_hSecDll = Curl_load_library(TEXT("secur32.dll"));
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if(!s_hSecDll)
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return CURLE_FAILED_INIT;
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/* Get address of the InitSecurityInterfaceA function from the SSPI dll */
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pInitSecurityInterface =
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CURLX_FUNCTION_CAST(INITSECURITYINTERFACE_FN,
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(GetProcAddress(s_hSecDll, SECURITYENTRYPOINT)));
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if(!pInitSecurityInterface)
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return CURLE_FAILED_INIT;
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/* Get pointer to Security Service Provider Interface dispatch table */
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s_pSecFn = pInitSecurityInterface();
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if(!s_pSecFn)
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return CURLE_FAILED_INIT;
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}
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return CURLE_OK;
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}
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/*
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* Curl_sspi_global_cleanup()
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*
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* This deinitializes the Security Service Provider Interface from libcurl.
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*
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* Parameters:
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*
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* None.
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*/
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void Curl_sspi_global_cleanup(void)
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{
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if(s_hSecDll) {
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FreeLibrary(s_hSecDll);
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s_hSecDll = NULL;
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s_pSecFn = NULL;
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}
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}
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/*
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* Curl_create_sspi_identity()
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*
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* This is used to populate a SSPI identity structure based on the supplied
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* username and password.
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*
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* Parameters:
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*
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* userp [in] - The user name in the format User or Domain\User.
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* passwdp [in] - The user's password.
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* identity [in/out] - The identity structure.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_create_sspi_identity(const char *userp, const char *passwdp,
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SEC_WINNT_AUTH_IDENTITY *identity)
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{
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xcharp_u useranddomain;
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xcharp_u user, dup_user;
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xcharp_u domain, dup_domain;
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xcharp_u passwd, dup_passwd;
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size_t domlen = 0;
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domain.const_tchar_ptr = TEXT("");
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/* Initialize the identity */
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memset(identity, 0, sizeof(*identity));
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useranddomain.tchar_ptr = curlx_convert_UTF8_to_tchar((char *)userp);
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if(!useranddomain.tchar_ptr)
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return CURLE_OUT_OF_MEMORY;
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user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('\\'));
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if(!user.const_tchar_ptr)
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user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('/'));
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if(user.tchar_ptr) {
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domain.tchar_ptr = useranddomain.tchar_ptr;
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domlen = user.tchar_ptr - useranddomain.tchar_ptr;
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user.tchar_ptr++;
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}
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else {
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user.tchar_ptr = useranddomain.tchar_ptr;
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domain.const_tchar_ptr = TEXT("");
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domlen = 0;
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}
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/* Setup the identity's user and length */
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dup_user.tchar_ptr = _tcsdup(user.tchar_ptr);
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if(!dup_user.tchar_ptr) {
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curlx_unicodefree(useranddomain.tchar_ptr);
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return CURLE_OUT_OF_MEMORY;
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}
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identity->User = dup_user.tbyte_ptr;
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identity->UserLength = curlx_uztoul(_tcslen(dup_user.tchar_ptr));
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dup_user.tchar_ptr = NULL;
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/* Setup the identity's domain and length */
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dup_domain.tchar_ptr = malloc(sizeof(TCHAR) * (domlen + 1));
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if(!dup_domain.tchar_ptr) {
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curlx_unicodefree(useranddomain.tchar_ptr);
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return CURLE_OUT_OF_MEMORY;
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}
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_tcsncpy(dup_domain.tchar_ptr, domain.tchar_ptr, domlen);
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*(dup_domain.tchar_ptr + domlen) = TEXT('\0');
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identity->Domain = dup_domain.tbyte_ptr;
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identity->DomainLength = curlx_uztoul(domlen);
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dup_domain.tchar_ptr = NULL;
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curlx_unicodefree(useranddomain.tchar_ptr);
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/* Setup the identity's password and length */
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passwd.tchar_ptr = curlx_convert_UTF8_to_tchar((char *)passwdp);
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if(!passwd.tchar_ptr)
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return CURLE_OUT_OF_MEMORY;
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dup_passwd.tchar_ptr = _tcsdup(passwd.tchar_ptr);
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if(!dup_passwd.tchar_ptr) {
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curlx_unicodefree(passwd.tchar_ptr);
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return CURLE_OUT_OF_MEMORY;
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}
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identity->Password = dup_passwd.tbyte_ptr;
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identity->PasswordLength = curlx_uztoul(_tcslen(dup_passwd.tchar_ptr));
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dup_passwd.tchar_ptr = NULL;
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curlx_unicodefree(passwd.tchar_ptr);
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/* Setup the identity's flags */
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identity->Flags = SECFLAG_WINNT_AUTH_IDENTITY;
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return CURLE_OK;
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}
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/*
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* Curl_sspi_free_identity()
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*
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* This is used to free the contents of a SSPI identifier structure.
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*
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* Parameters:
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*
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* identity [in/out] - The identity structure.
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*/
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void Curl_sspi_free_identity(SEC_WINNT_AUTH_IDENTITY *identity)
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{
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if(identity) {
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Curl_safefree(identity->User);
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Curl_safefree(identity->Password);
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Curl_safefree(identity->Domain);
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}
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}
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#endif /* USE_WINDOWS_SSPI */
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