[388] | 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 |
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| 23 | #include "curl_setup.h"
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| 24 |
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| 25 | #ifdef USE_WINDOWS_SSPI
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| 26 |
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| 27 | #include <curl/curl.h>
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| 28 | #include "curl_sspi.h"
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| 29 | #include "curl_multibyte.h"
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| 30 | #include "system_win32.h"
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| 31 | #include "warnless.h"
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| 32 |
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| 33 | /* The last #include files should be: */
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| 34 | #include "curl_memory.h"
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| 35 | #include "memdebug.h"
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| 36 |
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| 37 | /* We use our own typedef here since some headers might lack these */
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| 38 | typedef PSecurityFunctionTable (APIENTRY *INITSECURITYINTERFACE_FN)(VOID);
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| 39 |
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| 40 | /* See definition of SECURITY_ENTRYPOINT in sspi.h */
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| 41 | #ifdef UNICODE
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| 42 | # ifdef _WIN32_WCE
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| 43 | # define SECURITYENTRYPOINT L"InitSecurityInterfaceW"
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| 44 | # else
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| 45 | # define SECURITYENTRYPOINT "InitSecurityInterfaceW"
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| 46 | # endif
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| 47 | #else
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| 48 | # define SECURITYENTRYPOINT "InitSecurityInterfaceA"
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| 49 | #endif
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| 50 |
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| 51 | /* Handle of security.dll or secur32.dll, depending on Windows version */
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| 52 | HMODULE s_hSecDll = NULL;
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| 53 |
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| 54 | /* Pointer to SSPI dispatch table */
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| 55 | PSecurityFunctionTable s_pSecFn = NULL;
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| 56 |
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| 57 | /*
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| 58 | * Curl_sspi_global_init()
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| 59 | *
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| 60 | * This is used to load the Security Service Provider Interface (SSPI)
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| 61 | * dynamic link library portably across all Windows versions, without
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| 62 | * the need to directly link libcurl, nor the application using it, at
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| 63 | * build time.
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| 64 | *
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| 65 | * Once this function has been executed, Windows SSPI functions can be
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| 66 | * called through the Security Service Provider Interface dispatch table.
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| 67 | *
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| 68 | * Parameters:
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| 69 | *
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| 70 | * None.
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| 71 | *
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| 72 | * Returns CURLE_OK on success.
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| 73 | */
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| 74 | CURLcode Curl_sspi_global_init(void)
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| 75 | {
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| 76 | INITSECURITYINTERFACE_FN pInitSecurityInterface;
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| 77 |
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| 78 | /* If security interface is not yet initialized try to do this */
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| 79 | if(!s_hSecDll) {
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| 80 | /* Security Service Provider Interface (SSPI) functions are located in
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| 81 | * security.dll on WinNT 4.0 and in secur32.dll on Win9x. Win2K and XP
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| 82 | * have both these DLLs (security.dll forwards calls to secur32.dll) */
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| 83 |
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| 84 | /* Load SSPI dll into the address space of the calling process */
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| 85 | if(Curl_verify_windows_version(4, 0, PLATFORM_WINNT, VERSION_EQUAL))
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| 86 | s_hSecDll = Curl_load_library(TEXT("security.dll"));
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| 87 | else
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| 88 | s_hSecDll = Curl_load_library(TEXT("secur32.dll"));
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| 89 | if(!s_hSecDll)
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| 90 | return CURLE_FAILED_INIT;
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| 91 |
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| 92 | /* Get address of the InitSecurityInterfaceA function from the SSPI dll */
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| 93 | pInitSecurityInterface = (INITSECURITYINTERFACE_FN)
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| 94 | GetProcAddress(s_hSecDll, SECURITYENTRYPOINT);
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| 95 | if(!pInitSecurityInterface)
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| 96 | return CURLE_FAILED_INIT;
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| 97 |
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| 98 | /* Get pointer to Security Service Provider Interface dispatch table */
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| 99 | s_pSecFn = pInitSecurityInterface();
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| 100 | if(!s_pSecFn)
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| 101 | return CURLE_FAILED_INIT;
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| 102 | }
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| 103 |
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| 104 | return CURLE_OK;
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| 105 | }
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| 106 |
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| 107 | /*
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| 108 | * Curl_sspi_global_cleanup()
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| 109 | *
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| 110 | * This deinitializes the Security Service Provider Interface from libcurl.
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| 111 | *
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| 112 | * Parameters:
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| 113 | *
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| 114 | * None.
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| 115 | */
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| 116 | void Curl_sspi_global_cleanup(void)
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| 117 | {
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| 118 | if(s_hSecDll) {
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| 119 | FreeLibrary(s_hSecDll);
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| 120 | s_hSecDll = NULL;
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| 121 | s_pSecFn = NULL;
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| 122 | }
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| 123 | }
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| 124 |
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| 125 | /*
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| 126 | * Curl_create_sspi_identity()
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| 127 | *
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| 128 | * This is used to populate a SSPI identity structure based on the supplied
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| 129 | * username and password.
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| 130 | *
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| 131 | * Parameters:
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| 132 | *
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| 133 | * userp [in] - The user name in the format User or Domain\User.
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| 134 | * passdwp [in] - The user's password.
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| 135 | * identity [in/out] - The identity structure.
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| 136 | *
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| 137 | * Returns CURLE_OK on success.
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| 138 | */
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| 139 | CURLcode Curl_create_sspi_identity(const char *userp, const char *passwdp,
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| 140 | SEC_WINNT_AUTH_IDENTITY *identity)
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| 141 | {
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| 142 | xcharp_u useranddomain;
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| 143 | xcharp_u user, dup_user;
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| 144 | xcharp_u domain, dup_domain;
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| 145 | xcharp_u passwd, dup_passwd;
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| 146 | size_t domlen = 0;
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| 147 |
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| 148 | domain.const_tchar_ptr = TEXT("");
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| 149 |
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| 150 | /* Initialize the identity */
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| 151 | memset(identity, 0, sizeof(*identity));
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| 152 |
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| 153 | useranddomain.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)userp);
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| 154 | if(!useranddomain.tchar_ptr)
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| 155 | return CURLE_OUT_OF_MEMORY;
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| 156 |
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| 157 | user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('\\'));
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| 158 | if(!user.const_tchar_ptr)
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| 159 | user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('/'));
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| 160 |
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| 161 | if(user.tchar_ptr) {
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| 162 | domain.tchar_ptr = useranddomain.tchar_ptr;
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| 163 | domlen = user.tchar_ptr - useranddomain.tchar_ptr;
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| 164 | user.tchar_ptr++;
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| 165 | }
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| 166 | else {
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| 167 | user.tchar_ptr = useranddomain.tchar_ptr;
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| 168 | domain.const_tchar_ptr = TEXT("");
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| 169 | domlen = 0;
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| 170 | }
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| 171 |
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| 172 | /* Setup the identity's user and length */
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| 173 | dup_user.tchar_ptr = _tcsdup(user.tchar_ptr);
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| 174 | if(!dup_user.tchar_ptr) {
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| 175 | Curl_unicodefree(useranddomain.tchar_ptr);
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| 176 | return CURLE_OUT_OF_MEMORY;
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| 177 | }
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| 178 | identity->User = dup_user.tbyte_ptr;
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| 179 | identity->UserLength = curlx_uztoul(_tcslen(dup_user.tchar_ptr));
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| 180 | dup_user.tchar_ptr = NULL;
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| 181 |
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| 182 | /* Setup the identity's domain and length */
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| 183 | dup_domain.tchar_ptr = malloc(sizeof(TCHAR) * (domlen + 1));
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| 184 | if(!dup_domain.tchar_ptr) {
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| 185 | Curl_unicodefree(useranddomain.tchar_ptr);
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| 186 | return CURLE_OUT_OF_MEMORY;
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| 187 | }
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| 188 | _tcsncpy(dup_domain.tchar_ptr, domain.tchar_ptr, domlen);
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| 189 | *(dup_domain.tchar_ptr + domlen) = TEXT('\0');
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| 190 | identity->Domain = dup_domain.tbyte_ptr;
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| 191 | identity->DomainLength = curlx_uztoul(domlen);
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| 192 | dup_domain.tchar_ptr = NULL;
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| 193 |
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| 194 | Curl_unicodefree(useranddomain.tchar_ptr);
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| 195 |
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| 196 | /* Setup the identity's password and length */
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| 197 | passwd.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)passwdp);
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| 198 | if(!passwd.tchar_ptr)
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| 199 | return CURLE_OUT_OF_MEMORY;
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| 200 | dup_passwd.tchar_ptr = _tcsdup(passwd.tchar_ptr);
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| 201 | if(!dup_passwd.tchar_ptr) {
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| 202 | Curl_unicodefree(passwd.tchar_ptr);
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| 203 | return CURLE_OUT_OF_MEMORY;
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| 204 | }
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| 205 | identity->Password = dup_passwd.tbyte_ptr;
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| 206 | identity->PasswordLength = curlx_uztoul(_tcslen(dup_passwd.tchar_ptr));
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| 207 | dup_passwd.tchar_ptr = NULL;
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| 208 |
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| 209 | Curl_unicodefree(passwd.tchar_ptr);
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| 210 |
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| 211 | /* Setup the identity's flags */
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| 212 | identity->Flags = SECFLAG_WINNT_AUTH_IDENTITY;
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| 213 |
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| 214 | return CURLE_OK;
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| 215 | }
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| 216 |
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| 217 | /*
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| 218 | * Curl_sspi_free_identity()
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| 219 | *
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| 220 | * This is used to free the contents of a SSPI identifier structure.
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| 221 | *
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| 222 | * Parameters:
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| 223 | *
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| 224 | * identity [in/out] - The identity structure.
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| 225 | */
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| 226 | void Curl_sspi_free_identity(SEC_WINNT_AUTH_IDENTITY *identity)
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| 227 | {
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| 228 | if(identity) {
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| 229 | Curl_safefree(identity->User);
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| 230 | Curl_safefree(identity->Password);
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| 231 | Curl_safefree(identity->Domain);
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| 232 | }
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| 233 | }
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| 234 |
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| 235 | #endif /* USE_WINDOWS_SSPI */
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