1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel (at) haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at https://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23 #include "curl_setup.h" 24 25 #ifdef USE_WINDOWS_SSPI 26 27 #include <curl/curl.h> 28 #include "curl_sspi.h" 29 #include "curl_multibyte.h" 30 #include "system_win32.h" 31 #include "warnless.h" 32 33 /* The last #include files should be: */ 34 #include "curl_memory.h" 35 #include "memdebug.h" 36 37 /* We use our own typedef here since some headers might lack these */ 38 typedef PSecurityFunctionTable (APIENTRY *INITSECURITYINTERFACE_FN)(VOID); 39 40 /* See definition of SECURITY_ENTRYPOINT in sspi.h */ 41 #ifdef UNICODE 42 # ifdef _WIN32_WCE 43 # define SECURITYENTRYPOINT L"InitSecurityInterfaceW" 44 # else 45 # define SECURITYENTRYPOINT "InitSecurityInterfaceW" 46 # endif 47 #else 48 # define SECURITYENTRYPOINT "InitSecurityInterfaceA" 49 #endif 50 51 /* Handle of security.dll or secur32.dll, depending on Windows version */ 52 HMODULE s_hSecDll = NULL; 53 54 /* Pointer to SSPI dispatch table */ 55 PSecurityFunctionTable s_pSecFn = NULL; 56 57 /* 58 * Curl_sspi_global_init() 59 * 60 * This is used to load the Security Service Provider Interface (SSPI) 61 * dynamic link library portably across all Windows versions, without 62 * the need to directly link libcurl, nor the application using it, at 63 * build time. 64 * 65 * Once this function has been executed, Windows SSPI functions can be 66 * called through the Security Service Provider Interface dispatch table. 67 */ 68 CURLcode Curl_sspi_global_init(void) 69 { 70 INITSECURITYINTERFACE_FN pInitSecurityInterface; 71 72 /* If security interface is not yet initialized try to do this */ 73 if(!s_hSecDll) { 74 /* Security Service Provider Interface (SSPI) functions are located in 75 * security.dll on WinNT 4.0 and in secur32.dll on Win9x. Win2K and XP 76 * have both these DLLs (security.dll forwards calls to secur32.dll) */ 77 78 /* Load SSPI dll into the address space of the calling process */ 79 if(Curl_verify_windows_version(4, 0, PLATFORM_WINNT, VERSION_EQUAL)) 80 s_hSecDll = Curl_load_library(TEXT("security.dll")); 81 else 82 s_hSecDll = Curl_load_library(TEXT("secur32.dll")); 83 if(!s_hSecDll) 84 return CURLE_FAILED_INIT; 85 86 /* Get address of the InitSecurityInterfaceA function from the SSPI dll */ 87 pInitSecurityInterface = (INITSECURITYINTERFACE_FN) 88 GetProcAddress(s_hSecDll, SECURITYENTRYPOINT); 89 if(!pInitSecurityInterface) 90 return CURLE_FAILED_INIT; 91 92 /* Get pointer to Security Service Provider Interface dispatch table */ 93 s_pSecFn = pInitSecurityInterface(); 94 if(!s_pSecFn) 95 return CURLE_FAILED_INIT; 96 } 97 98 return CURLE_OK; 99 } 100 101 /* 102 * Curl_sspi_global_cleanup() 103 * 104 * This deinitializes the Security Service Provider Interface from libcurl. 105 */ 106 107 void Curl_sspi_global_cleanup(void) 108 { 109 if(s_hSecDll) { 110 FreeLibrary(s_hSecDll); 111 s_hSecDll = NULL; 112 s_pSecFn = NULL; 113 } 114 } 115 116 /* 117 * Curl_create_sspi_identity() 118 * 119 * This is used to populate a SSPI identity structure based on the supplied 120 * username and password. 121 * 122 * Parameters: 123 * 124 * userp [in] - The user name in the format User or Domain\User. 125 * passdwp [in] - The user's password. 126 * identity [in/out] - The identity structure. 127 * 128 * Returns CURLE_OK on success. 129 */ 130 CURLcode Curl_create_sspi_identity(const char *userp, const char *passwdp, 131 SEC_WINNT_AUTH_IDENTITY *identity) 132 { 133 xcharp_u useranddomain; 134 xcharp_u user, dup_user; 135 xcharp_u domain, dup_domain; 136 xcharp_u passwd, dup_passwd; 137 size_t domlen = 0; 138 139 domain.const_tchar_ptr = TEXT(""); 140 141 /* Initialize the identity */ 142 memset(identity, 0, sizeof(*identity)); 143 144 useranddomain.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)userp); 145 if(!useranddomain.tchar_ptr) 146 return CURLE_OUT_OF_MEMORY; 147 148 user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('\\')); 149 if(!user.const_tchar_ptr) 150 user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('/')); 151 152 if(user.tchar_ptr) { 153 domain.tchar_ptr = useranddomain.tchar_ptr; 154 domlen = user.tchar_ptr - useranddomain.tchar_ptr; 155 user.tchar_ptr++; 156 } 157 else { 158 user.tchar_ptr = useranddomain.tchar_ptr; 159 domain.const_tchar_ptr = TEXT(""); 160 domlen = 0; 161 } 162 163 /* Setup the identity's user and length */ 164 dup_user.tchar_ptr = _tcsdup(user.tchar_ptr); 165 if(!dup_user.tchar_ptr) { 166 Curl_unicodefree(useranddomain.tchar_ptr); 167 return CURLE_OUT_OF_MEMORY; 168 } 169 identity->User = dup_user.tbyte_ptr; 170 identity->UserLength = curlx_uztoul(_tcslen(dup_user.tchar_ptr)); 171 dup_user.tchar_ptr = NULL; 172 173 /* Setup the identity's domain and length */ 174 dup_domain.tchar_ptr = malloc(sizeof(TCHAR) * (domlen + 1)); 175 if(!dup_domain.tchar_ptr) { 176 Curl_unicodefree(useranddomain.tchar_ptr); 177 return CURLE_OUT_OF_MEMORY; 178 } 179 _tcsncpy(dup_domain.tchar_ptr, domain.tchar_ptr, domlen); 180 *(dup_domain.tchar_ptr + domlen) = TEXT('\0'); 181 identity->Domain = dup_domain.tbyte_ptr; 182 identity->DomainLength = curlx_uztoul(domlen); 183 dup_domain.tchar_ptr = NULL; 184 185 Curl_unicodefree(useranddomain.tchar_ptr); 186 187 /* Setup the identity's password and length */ 188 passwd.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)passwdp); 189 if(!passwd.tchar_ptr) 190 return CURLE_OUT_OF_MEMORY; 191 dup_passwd.tchar_ptr = _tcsdup(passwd.tchar_ptr); 192 if(!dup_passwd.tchar_ptr) { 193 Curl_unicodefree(passwd.tchar_ptr); 194 return CURLE_OUT_OF_MEMORY; 195 } 196 identity->Password = dup_passwd.tbyte_ptr; 197 identity->PasswordLength = curlx_uztoul(_tcslen(dup_passwd.tchar_ptr)); 198 dup_passwd.tchar_ptr = NULL; 199 200 Curl_unicodefree(passwd.tchar_ptr); 201 202 /* Setup the identity's flags */ 203 identity->Flags = SECFLAG_WINNT_AUTH_IDENTITY; 204 205 return CURLE_OK; 206 } 207 208 void Curl_sspi_free_identity(SEC_WINNT_AUTH_IDENTITY *identity) 209 { 210 if(identity) { 211 Curl_safefree(identity->User); 212 Curl_safefree(identity->Password); 213 Curl_safefree(identity->Domain); 214 } 215 } 216 217 #endif /* USE_WINDOWS_SSPI */ 218
