curl/lib/curl_sspi.c

237 строки
6.9 KiB
C
Исходник Обычный вид История

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* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
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* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
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build: fix circular header inclusion with other packages This commit renames lib/setup.h to lib/curl_setup.h and renames lib/setup_once.h to lib/curl_setup_once.h. Removes the need and usage of a header inclusion guard foreign to libcurl. [1] Removes the need and presence of an alarming notice we carried in old setup_once.h [2] ---------------------------------------- 1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H, this single inclusion guard is enough to ensure that inclusion of lib/setup_once.h done from lib/setup.h is only done once. Additionally lib/setup.h has always used __SETUP_ONCE_H macro to protect inclusion of setup_once.h even after commit ec691ca3, this was to avoid a circular header inclusion triggered when building a c-ares enabled version with c-ares sources available which also has a setup_once.h header. Commit ec691ca3 exposes the real nature of __SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard foreign to libcurl belonging to c-ares's setup_once.h The renaming this commit does, fixes the circular header inclusion, and as such removes the need and usage of a header inclusion guard foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl. 2 - Due to the circular interdependency of old lib/setup_once.h and the c-ares setup_once.h header, old file lib/setup_once.h has carried back from 2006 up to now days an alarming and prominent notice about the need of keeping libcurl's and c-ares's setup_once.h in sync. Given that this commit fixes the circular interdependency, the need and presence of mentioned notice is removed. All mentioned interdependencies come back from now old days when the c-ares project lived inside a curl subdirectory. This commit removes last traces of such fact.
2013-01-06 22:06:49 +04:00
#include "curl_setup.h"
#ifdef USE_WINDOWS_SSPI
#include <curl/curl.h>
#include "curl_sspi.h"
#include "curl_multibyte.h"
#include "system_win32.h"
#include "warnless.h"
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
/* We use our own typedef here since some headers might lack these */
typedef PSecurityFunctionTable (APIENTRY *INITSECURITYINTERFACE_FN)(VOID);
/* See definition of SECURITY_ENTRYPOINT in sspi.h */
#ifdef UNICODE
# ifdef _WIN32_WCE
# define SECURITYENTRYPOINT L"InitSecurityInterfaceW"
# else
# define SECURITYENTRYPOINT "InitSecurityInterfaceW"
# endif
#else
# define SECURITYENTRYPOINT "InitSecurityInterfaceA"
#endif
/* Handle of security.dll or secur32.dll, depending on Windows version */
HMODULE s_hSecDll = NULL;
/* Pointer to SSPI dispatch table */
PSecurityFunctionTable s_pSecFn = NULL;
/*
* Curl_sspi_global_init()
*
* This is used to load the Security Service Provider Interface (SSPI)
* dynamic link library portably across all Windows versions, without
* the need to directly link libcurl, nor the application using it, at
* build time.
*
2009-01-30 04:54:22 +03:00
* Once this function has been executed, Windows SSPI functions can be
* called through the Security Service Provider Interface dispatch table.
*
* Parameters:
*
* None.
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_sspi_global_init(void)
{
INITSECURITYINTERFACE_FN pInitSecurityInterface;
/* If security interface is not yet initialized try to do this */
if(!s_hSecDll) {
/* Security Service Provider Interface (SSPI) functions are located in
* security.dll on WinNT 4.0 and in secur32.dll on Win9x. Win2K and XP
* have both these DLLs (security.dll forwards calls to secur32.dll) */
/* Load SSPI dll into the address space of the calling process */
if(Curl_verify_windows_version(4, 0, PLATFORM_WINNT, VERSION_EQUAL))
s_hSecDll = Curl_load_library(TEXT("security.dll"));
else
s_hSecDll = Curl_load_library(TEXT("secur32.dll"));
if(!s_hSecDll)
return CURLE_FAILED_INIT;
/* Get address of the InitSecurityInterfaceA function from the SSPI dll */
pInitSecurityInterface =
CURLX_FUNCTION_CAST(INITSECURITYINTERFACE_FN,
(GetProcAddress(s_hSecDll, SECURITYENTRYPOINT)));
if(!pInitSecurityInterface)
return CURLE_FAILED_INIT;
/* Get pointer to Security Service Provider Interface dispatch table */
s_pSecFn = pInitSecurityInterface();
if(!s_pSecFn)
return CURLE_FAILED_INIT;
}
return CURLE_OK;
}
/*
* Curl_sspi_global_cleanup()
*
* This deinitializes the Security Service Provider Interface from libcurl.
*
* Parameters:
*
* None.
*/
void Curl_sspi_global_cleanup(void)
{
if(s_hSecDll) {
FreeLibrary(s_hSecDll);
s_hSecDll = NULL;
s_pSecFn = NULL;
}
}
/*
* Curl_create_sspi_identity()
*
* This is used to populate a SSPI identity structure based on the supplied
* username and password.
*
* Parameters:
*
* userp [in] - The user name in the format User or Domain\User.
* passwdp [in] - The user's password.
* identity [in/out] - The identity structure.
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_create_sspi_identity(const char *userp, const char *passwdp,
SEC_WINNT_AUTH_IDENTITY *identity)
{
xcharp_u useranddomain;
xcharp_u user, dup_user;
xcharp_u domain, dup_domain;
xcharp_u passwd, dup_passwd;
size_t domlen = 0;
domain.const_tchar_ptr = TEXT("");
/* Initialize the identity */
memset(identity, 0, sizeof(*identity));
useranddomain.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)userp);
if(!useranddomain.tchar_ptr)
return CURLE_OUT_OF_MEMORY;
user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('\\'));
if(!user.const_tchar_ptr)
user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('/'));
if(user.tchar_ptr) {
domain.tchar_ptr = useranddomain.tchar_ptr;
domlen = user.tchar_ptr - useranddomain.tchar_ptr;
user.tchar_ptr++;
}
else {
user.tchar_ptr = useranddomain.tchar_ptr;
domain.const_tchar_ptr = TEXT("");
domlen = 0;
}
/* Setup the identity's user and length */
dup_user.tchar_ptr = _tcsdup(user.tchar_ptr);
if(!dup_user.tchar_ptr) {
Curl_unicodefree(useranddomain.tchar_ptr);
return CURLE_OUT_OF_MEMORY;
}
identity->User = dup_user.tbyte_ptr;
identity->UserLength = curlx_uztoul(_tcslen(dup_user.tchar_ptr));
dup_user.tchar_ptr = NULL;
/* Setup the identity's domain and length */
dup_domain.tchar_ptr = malloc(sizeof(TCHAR) * (domlen + 1));
if(!dup_domain.tchar_ptr) {
Curl_unicodefree(useranddomain.tchar_ptr);
return CURLE_OUT_OF_MEMORY;
}
_tcsncpy(dup_domain.tchar_ptr, domain.tchar_ptr, domlen);
*(dup_domain.tchar_ptr + domlen) = TEXT('\0');
identity->Domain = dup_domain.tbyte_ptr;
identity->DomainLength = curlx_uztoul(domlen);
dup_domain.tchar_ptr = NULL;
Curl_unicodefree(useranddomain.tchar_ptr);
/* Setup the identity's password and length */
passwd.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)passwdp);
if(!passwd.tchar_ptr)
return CURLE_OUT_OF_MEMORY;
dup_passwd.tchar_ptr = _tcsdup(passwd.tchar_ptr);
if(!dup_passwd.tchar_ptr) {
Curl_unicodefree(passwd.tchar_ptr);
return CURLE_OUT_OF_MEMORY;
}
identity->Password = dup_passwd.tbyte_ptr;
identity->PasswordLength = curlx_uztoul(_tcslen(dup_passwd.tchar_ptr));
dup_passwd.tchar_ptr = NULL;
Curl_unicodefree(passwd.tchar_ptr);
/* Setup the identity's flags */
identity->Flags = SECFLAG_WINNT_AUTH_IDENTITY;
return CURLE_OK;
}
/*
* Curl_sspi_free_identity()
*
* This is used to free the contents of a SSPI identifier structure.
*
* Parameters:
*
* identity [in/out] - The identity structure.
*/
void Curl_sspi_free_identity(SEC_WINNT_AUTH_IDENTITY *identity)
{
if(identity) {
Curl_safefree(identity->User);
Curl_safefree(identity->Password);
Curl_safefree(identity->Domain);
}
}
#endif /* USE_WINDOWS_SSPI */