| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2007, 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 http://curl.haxx.se/docs/copyright.html. |
| * |
| * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| * copies of the Software, and permit persons to whom the Software is |
| * furnished to do so, under the terms of the COPYING file. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| * $Id$ |
| ***************************************************************************/ |
| #include "setup.h" |
| |
| /* NTLM details: |
| |
| http://davenport.sourceforge.net/ntlm.html |
| http://www.innovation.ch/java/ntlm.html |
| |
| Another implementation: |
| http://lxr.mozilla.org/mozilla/source/security/manager/ssl/src/nsNTLMAuthModule.cpp |
| |
| */ |
| |
| #ifndef CURL_DISABLE_HTTP |
| #ifdef USE_NTLM |
| |
| #define DEBUG_ME 0 |
| |
| /* -- WIN32 approved -- */ |
| #include <stdio.h> |
| #include <string.h> |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include <ctype.h> |
| |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| #include "urldata.h" |
| #include "easyif.h" /* for Curl_convert_... prototypes */ |
| #include "sendf.h" |
| #include "strequal.h" |
| #include "base64.h" |
| #include "http_ntlm.h" |
| #include "url.h" |
| #include "memory.h" |
| #include "ssluse.h" |
| |
| #define _MPRINTF_REPLACE /* use our functions only */ |
| #include <curl/mprintf.h> |
| |
| /* "NTLMSSP" signature is always in ASCII regardless of the platform */ |
| #define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50" |
| |
| #ifndef USE_WINDOWS_SSPI |
| |
| #include <openssl/des.h> |
| #include <openssl/md4.h> |
| #include <openssl/md5.h> |
| #include <openssl/ssl.h> |
| #include <openssl/rand.h> |
| |
| #if OPENSSL_VERSION_NUMBER < 0x00907001L |
| #define DES_key_schedule des_key_schedule |
| #define DES_cblock des_cblock |
| #define DES_set_odd_parity des_set_odd_parity |
| #define DES_set_key des_set_key |
| #define DES_ecb_encrypt des_ecb_encrypt |
| |
| /* This is how things were done in the old days */ |
| #define DESKEY(x) x |
| #define DESKEYARG(x) x |
| #else |
| /* Modern version */ |
| #define DESKEYARG(x) *x |
| #define DESKEY(x) &x |
| #endif |
| |
| #else |
| |
| #include <rpc.h> |
| |
| /* Handle of security.dll or secur32.dll, depending on Windows version */ |
| static HMODULE s_hSecDll = NULL; |
| /* Pointer to SSPI dispatch table */ |
| static PSecurityFunctionTable s_pSecFn = NULL; |
| |
| #endif |
| |
| /* The last #include file should be: */ |
| #include "memdebug.h" |
| |
| /* Define this to make the type-3 message include the NT response message */ |
| #define USE_NTRESPONSES 1 |
| |
| /* Define this to make the type-3 message include the NTLM2Session response |
| message, requires USE_NTRESPONSES. */ |
| #define USE_NTLM2SESSION 1 |
| |
| #ifndef USE_WINDOWS_SSPI |
| /* this function converts from the little endian format used in the incoming |
| package to whatever endian format we're using natively */ |
| static unsigned int readint_le(unsigned char *buf) /* must point to a |
| 4 bytes buffer*/ |
| { |
| return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) | |
| ((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24); |
| } |
| #endif |
| |
| #if DEBUG_ME |
| # define DEBUG_OUT(x) x |
| static void print_flags(FILE *handle, unsigned long flags) |
| { |
| if(flags & NTLMFLAG_NEGOTIATE_UNICODE) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_UNICODE "); |
| if(flags & NTLMFLAG_NEGOTIATE_OEM) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_OEM "); |
| if(flags & NTLMFLAG_REQUEST_TARGET) |
| fprintf(handle, "NTLMFLAG_REQUEST_TARGET "); |
| if(flags & (1<<3)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_3 "); |
| if(flags & NTLMFLAG_NEGOTIATE_SIGN) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_SIGN "); |
| if(flags & NTLMFLAG_NEGOTIATE_SEAL) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_SEAL "); |
| if(flags & NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE "); |
| if(flags & NTLMFLAG_NEGOTIATE_LM_KEY) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_LM_KEY "); |
| if(flags & NTLMFLAG_NEGOTIATE_NETWARE) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_NETWARE "); |
| if(flags & NTLMFLAG_NEGOTIATE_NTLM_KEY) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM_KEY "); |
| if(flags & (1<<10)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_10 "); |
| if(flags & (1<<11)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_11 "); |
| if(flags & NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED "); |
| if(flags & NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED "); |
| if(flags & NTLMFLAG_NEGOTIATE_LOCAL_CALL) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_LOCAL_CALL "); |
| if(flags & NTLMFLAG_NEGOTIATE_ALWAYS_SIGN) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_ALWAYS_SIGN "); |
| if(flags & NTLMFLAG_TARGET_TYPE_DOMAIN) |
| fprintf(handle, "NTLMFLAG_TARGET_TYPE_DOMAIN "); |
| if(flags & NTLMFLAG_TARGET_TYPE_SERVER) |
| fprintf(handle, "NTLMFLAG_TARGET_TYPE_SERVER "); |
| if(flags & NTLMFLAG_TARGET_TYPE_SHARE) |
| fprintf(handle, "NTLMFLAG_TARGET_TYPE_SHARE "); |
| if(flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM2_KEY "); |
| if(flags & NTLMFLAG_REQUEST_INIT_RESPONSE) |
| fprintf(handle, "NTLMFLAG_REQUEST_INIT_RESPONSE "); |
| if(flags & NTLMFLAG_REQUEST_ACCEPT_RESPONSE) |
| fprintf(handle, "NTLMFLAG_REQUEST_ACCEPT_RESPONSE "); |
| if(flags & NTLMFLAG_REQUEST_NONNT_SESSION_KEY) |
| fprintf(handle, "NTLMFLAG_REQUEST_NONNT_SESSION_KEY "); |
| if(flags & NTLMFLAG_NEGOTIATE_TARGET_INFO) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_TARGET_INFO "); |
| if(flags & (1<<24)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_24 "); |
| if(flags & (1<<25)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_25 "); |
| if(flags & (1<<26)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_26 "); |
| if(flags & (1<<27)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_27 "); |
| if(flags & (1<<28)) |
| fprintf(handle, "NTLMFLAG_UNKNOWN_28 "); |
| if(flags & NTLMFLAG_NEGOTIATE_128) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_128 "); |
| if(flags & NTLMFLAG_NEGOTIATE_KEY_EXCHANGE) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_KEY_EXCHANGE "); |
| if(flags & NTLMFLAG_NEGOTIATE_56) |
| fprintf(handle, "NTLMFLAG_NEGOTIATE_56 "); |
| } |
| |
| static void print_hex(FILE *handle, const char *buf, size_t len) |
| { |
| const char *p = buf; |
| fprintf(stderr, "0x"); |
| while (len-- > 0) |
| fprintf(stderr, "%02.2x", (unsigned int)*p++); |
| } |
| #else |
| # define DEBUG_OUT(x) |
| #endif |
| |
| /* |
| (*) = A "security buffer" is a triplet consisting of two shorts and one |
| long: |
| |
| 1. a 'short' containing the length of the buffer in bytes |
| 2. a 'short' containing the allocated space for the buffer in bytes |
| 3. a 'long' containing the offset to the start of the buffer from the |
| beginning of the NTLM message, in bytes. |
| */ |
| |
| |
| CURLntlm Curl_input_ntlm(struct connectdata *conn, |
| bool proxy, /* if proxy or not */ |
| char *header) /* rest of the www-authenticate: |
| header */ |
| { |
| /* point to the correct struct with this */ |
| struct ntlmdata *ntlm; |
| #ifndef USE_WINDOWS_SSPI |
| static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 }; |
| #endif |
| |
| ntlm = proxy?&conn->proxyntlm:&conn->ntlm; |
| |
| /* skip initial whitespaces */ |
| while(*header && ISSPACE(*header)) |
| header++; |
| |
| if(checkprefix("NTLM", header)) { |
| header += strlen("NTLM"); |
| |
| while(*header && ISSPACE(*header)) |
| header++; |
| |
| if(*header) { |
| /* We got a type-2 message here: |
| |
| Index Description Content |
| 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" |
| (0x4e544c4d53535000) |
| 8 NTLM Message Type long (0x02000000) |
| 12 Target Name security buffer(*) |
| 20 Flags long |
| 24 Challenge 8 bytes |
| (32) Context (optional) 8 bytes (two consecutive longs) |
| (40) Target Information (optional) security buffer(*) |
| 32 (48) start of data block |
| */ |
| size_t size; |
| unsigned char *buffer; |
| size = Curl_base64_decode(header, &buffer); |
| if(!buffer) |
| return CURLNTLM_BAD; |
| |
| ntlm->state = NTLMSTATE_TYPE2; /* we got a type-2 */ |
| |
| #ifdef USE_WINDOWS_SSPI |
| ntlm->type_2 = malloc(size+1); |
| if (ntlm->type_2 == NULL) { |
| free(buffer); |
| return CURLE_OUT_OF_MEMORY; |
| } |
| ntlm->n_type_2 = size; |
| memcpy(ntlm->type_2, buffer, size); |
| #else |
| ntlm->flags = 0; |
| |
| if((size < 32) || |
| (memcmp(buffer, NTLMSSP_SIGNATURE, 8) != 0) || |
| (memcmp(buffer+8, type2_marker, sizeof(type2_marker)) != 0)) { |
| /* This was not a good enough type-2 message */ |
| free(buffer); |
| return CURLNTLM_BAD; |
| } |
| |
| ntlm->flags = readint_le(&buffer[20]); |
| memcpy(ntlm->nonce, &buffer[24], 8); |
| |
| DEBUG_OUT({ |
| fprintf(stderr, "**** TYPE2 header flags=0x%08.8lx ", ntlm->flags); |
| print_flags(stderr, ntlm->flags); |
| fprintf(stderr, "\n nonce="); |
| print_hex(stderr, (char *)ntlm->nonce, 8); |
| fprintf(stderr, "\n****\n"); |
| fprintf(stderr, "**** Header %s\n ", header); |
| }); |
| |
| free(buffer); |
| #endif |
| } |
| else { |
| if(ntlm->state >= NTLMSTATE_TYPE1) |
| return CURLNTLM_BAD; |
| |
| ntlm->state = NTLMSTATE_TYPE1; /* we should sent away a type-1 */ |
| } |
| } |
| return CURLNTLM_FINE; |
| } |
| |
| #ifndef USE_WINDOWS_SSPI |
| |
| /* |
| * Turns a 56 bit key into the 64 bit, odd parity key and sets the key. The |
| * key schedule ks is also set. |
| */ |
| static void setup_des_key(unsigned char *key_56, |
| DES_key_schedule DESKEYARG(ks)) |
| { |
| DES_cblock key; |
| |
| key[0] = key_56[0]; |
| key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1)); |
| key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2)); |
| key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3)); |
| key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4)); |
| key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5)); |
| key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6)); |
| key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF); |
| |
| DES_set_odd_parity(&key); |
| DES_set_key(&key, ks); |
| } |
| |
| /* |
| * takes a 21 byte array and treats it as 3 56-bit DES keys. The |
| * 8 byte plaintext is encrypted with each key and the resulting 24 |
| * bytes are stored in the results array. |
| */ |
| static void lm_resp(unsigned char *keys, |
| unsigned char *plaintext, |
| unsigned char *results) |
| { |
| DES_key_schedule ks; |
| |
| setup_des_key(keys, DESKEY(ks)); |
| DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) results, |
| DESKEY(ks), DES_ENCRYPT); |
| |
| setup_des_key(keys+7, DESKEY(ks)); |
| DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results+8), |
| DESKEY(ks), DES_ENCRYPT); |
| |
| setup_des_key(keys+14, DESKEY(ks)); |
| DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results+16), |
| DESKEY(ks), DES_ENCRYPT); |
| } |
| |
| |
| /* |
| * Set up lanmanager hashed password |
| */ |
| static void mk_lm_hash(struct SessionHandle *data, |
| char *password, |
| unsigned char *lmbuffer /* 21 bytes */) |
| { |
| unsigned char pw[14]; |
| static const unsigned char magic[] = { |
| 0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */ |
| }; |
| unsigned int i; |
| size_t len = strlen(password); |
| |
| if (len > 14) |
| len = 14; |
| |
| for (i=0; i<len; i++) |
| pw[i] = (unsigned char)toupper(password[i]); |
| |
| for (; i<14; i++) |
| pw[i] = 0; |
| |
| #ifdef CURL_DOES_CONVERSIONS |
| /* |
| * The LanManager hashed password needs to be created using the |
| * password in the network encoding not the host encoding. |
| */ |
| if(data) |
| Curl_convert_to_network(data, (char *)pw, 14); |
| #else |
| (void)data; |
| #endif |
| |
| { |
| /* Create LanManager hashed password. */ |
| |
| DES_key_schedule ks; |
| |
| setup_des_key(pw, DESKEY(ks)); |
| DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)lmbuffer, |
| DESKEY(ks), DES_ENCRYPT); |
| |
| setup_des_key(pw+7, DESKEY(ks)); |
| DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)(lmbuffer+8), |
| DESKEY(ks), DES_ENCRYPT); |
| |
| memset(lmbuffer + 16, 0, 21 - 16); |
| } |
| } |
| |
| #if USE_NTRESPONSES |
| static void utf8_to_unicode_le(unsigned char *dest, const char *src, |
| size_t srclen) |
| { |
| size_t i; |
| for (i=0; i<srclen; i++) { |
| dest[2*i] = (unsigned char)src[i]; |
| dest[2*i+1] = '\0'; |
| } |
| } |
| |
| /* |
| * Set up nt hashed passwords |
| */ |
| static void mk_nt_hash(struct SessionHandle *data, |
| char *password, |
| unsigned char *ntbuffer /* 21 bytes */) |
| { |
| size_t len = strlen(password); |
| unsigned char *pw = malloc(len*2); |
| |
| utf8_to_unicode_le(pw, password, len); |
| |
| #ifdef CURL_DOES_CONVERSIONS |
| /* |
| * The NT hashed password needs to be created using the |
| * password in the network encoding not the host encoding. |
| */ |
| if(data) |
| Curl_convert_to_network(data, (char *)pw, len*2); |
| #else |
| (void)data; |
| #endif |
| |
| { |
| /* Create NT hashed password. */ |
| MD4_CTX MD4; |
| |
| MD4_Init(&MD4); |
| MD4_Update(&MD4, pw, 2*len); |
| MD4_Final(ntbuffer, &MD4); |
| |
| memset(ntbuffer + 16, 0, 21 - 16); |
| } |
| |
| free(pw); |
| } |
| #endif |
| |
| |
| #endif |
| |
| #ifdef USE_WINDOWS_SSPI |
| |
| static void |
| ntlm_sspi_cleanup(struct ntlmdata *ntlm) |
| { |
| if (ntlm->type_2) { |
| free(ntlm->type_2); |
| ntlm->type_2 = NULL; |
| } |
| if (ntlm->has_handles) { |
| s_pSecFn->DeleteSecurityContext(&ntlm->c_handle); |
| s_pSecFn->FreeCredentialsHandle(&ntlm->handle); |
| ntlm->has_handles = 0; |
| } |
| if (ntlm->p_identity) { |
| if (ntlm->identity.User) free(ntlm->identity.User); |
| if (ntlm->identity.Password) free(ntlm->identity.Password); |
| if (ntlm->identity.Domain) free(ntlm->identity.Domain); |
| ntlm->p_identity = NULL; |
| } |
| } |
| |
| #endif |
| |
| #define SHORTPAIR(x) ((x) & 0xff), (((x) >> 8) & 0xff) |
| #define LONGQUARTET(x) ((x) & 0xff), (((x) >> 8)&0xff), \ |
| (((x) >>16)&0xff), (((x)>>24) & 0xff) |
| |
| #define HOSTNAME_MAX 1024 |
| |
| /* this is for creating ntlm header output */ |
| CURLcode Curl_output_ntlm(struct connectdata *conn, |
| bool proxy) |
| { |
| const char *domain=""; /* empty */ |
| char host [HOSTNAME_MAX+ 1] = ""; /* empty */ |
| #ifndef USE_WINDOWS_SSPI |
| size_t domlen = strlen(domain); |
| size_t hostlen = strlen(host); |
| size_t hostoff; /* host name offset */ |
| size_t domoff; /* domain name offset */ |
| #endif |
| size_t size; |
| char *base64=NULL; |
| unsigned char ntlmbuf[1024]; /* enough, unless the user+host+domain is very |
| long */ |
| |
| /* point to the address of the pointer that holds the string to sent to the |
| server, which is for a plain host or for a HTTP proxy */ |
| char **allocuserpwd; |
| |
| /* point to the name and password for this */ |
| char *userp; |
| char *passwdp; |
| /* point to the correct struct with this */ |
| struct ntlmdata *ntlm; |
| struct auth *authp; |
| |
| curlassert(conn); |
| curlassert(conn->data); |
| |
| if(proxy) { |
| allocuserpwd = &conn->allocptr.proxyuserpwd; |
| userp = conn->proxyuser; |
| passwdp = conn->proxypasswd; |
| ntlm = &conn->proxyntlm; |
| authp = &conn->data->state.authproxy; |
| } |
| else { |
| allocuserpwd = &conn->allocptr.userpwd; |
| userp = conn->user; |
| passwdp = conn->passwd; |
| ntlm = &conn->ntlm; |
| authp = &conn->data->state.authhost; |
| } |
| authp->done = FALSE; |
| |
| /* not set means empty */ |
| if(!userp) |
| userp=(char *)""; |
| |
| if(!passwdp) |
| passwdp=(char *)""; |
| |
| #ifdef USE_WINDOWS_SSPI |
| /* If security interface is not yet initialized try to do this */ |
| if (s_hSecDll == NULL) { |
| /* Determine Windows version. Security functions are located in |
| * security.dll on WinNT 4.0 and in secur32.dll on Win9x. Win2K and XP |
| * contain both these DLLs (security.dll just forwards calls to |
| * secur32.dll) |
| */ |
| OSVERSIONINFO osver; |
| osver.dwOSVersionInfoSize = sizeof(osver); |
| GetVersionEx(&osver); |
| if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT |
| && osver.dwMajorVersion == 4) |
| s_hSecDll = LoadLibrary("security.dll"); |
| else |
| s_hSecDll = LoadLibrary("secur32.dll"); |
| if (s_hSecDll != NULL) { |
| INIT_SECURITY_INTERFACE pInitSecurityInterface; |
| pInitSecurityInterface = |
| (INIT_SECURITY_INTERFACE)GetProcAddress(s_hSecDll, |
| "InitSecurityInterfaceA"); |
| if (pInitSecurityInterface != NULL) |
| s_pSecFn = pInitSecurityInterface(); |
| } |
| } |
| if (s_pSecFn == NULL) |
| return CURLE_RECV_ERROR; |
| #endif |
| |
| switch(ntlm->state) { |
| case NTLMSTATE_TYPE1: |
| default: /* for the weird cases we (re)start here */ |
| #ifdef USE_WINDOWS_SSPI |
| { |
| SecBuffer buf; |
| SecBufferDesc desc; |
| SECURITY_STATUS status; |
| ULONG attrs; |
| const char *user; |
| int domlen; |
| TimeStamp tsDummy; /* For Windows 9x compatibility of SPPI calls */ |
| |
| ntlm_sspi_cleanup(ntlm); |
| |
| user = strchr(userp, '\\'); |
| if (!user) |
| user = strchr(userp, '/'); |
| |
| if (user) { |
| domain = userp; |
| domlen = user - userp; |
| user++; |
| } |
| else { |
| user = userp; |
| domain = ""; |
| domlen = 0; |
| } |
| |
| if (user && *user) { |
| /* note: initialize all of this before doing the mallocs so that |
| * it can be cleaned up later without leaking memory. |
| */ |
| ntlm->p_identity = &ntlm->identity; |
| memset(ntlm->p_identity, 0, sizeof(*ntlm->p_identity)); |
| if ((ntlm->identity.User = (unsigned char *)strdup(user)) == NULL) |
| return CURLE_OUT_OF_MEMORY; |
| ntlm->identity.UserLength = strlen(user); |
| if ((ntlm->identity.Password = (unsigned char *)strdup(passwdp)) == NULL) |
| return CURLE_OUT_OF_MEMORY; |
| ntlm->identity.PasswordLength = strlen(passwdp); |
| if ((ntlm->identity.Domain = malloc(domlen+1)) == NULL) |
| return CURLE_OUT_OF_MEMORY; |
| strncpy((char *)ntlm->identity.Domain, domain, domlen); |
| ntlm->identity.Domain[domlen] = '\0'; |
| ntlm->identity.DomainLength = domlen; |
| ntlm->identity.Flags = SEC_WINNT_AUTH_IDENTITY_ANSI; |
| } |
| else { |
| ntlm->p_identity = NULL; |
| } |
| |
| if (s_pSecFn->AcquireCredentialsHandle( |
| NULL, (char *)"NTLM", SECPKG_CRED_OUTBOUND, NULL, ntlm->p_identity, |
| NULL, NULL, &ntlm->handle, &tsDummy |
| ) != SEC_E_OK) { |
| return CURLE_OUT_OF_MEMORY; |
| } |
| |
| desc.ulVersion = SECBUFFER_VERSION; |
| desc.cBuffers = 1; |
| desc.pBuffers = &buf; |
| buf.cbBuffer = sizeof(ntlmbuf); |
| buf.BufferType = SECBUFFER_TOKEN; |
| buf.pvBuffer = ntlmbuf; |
| |
| status = s_pSecFn->InitializeSecurityContext(&ntlm->handle, NULL, |
| (char *) host, |
| ISC_REQ_CONFIDENTIALITY | |
| ISC_REQ_REPLAY_DETECT | |
| ISC_REQ_CONNECTION, |
| 0, SECURITY_NETWORK_DREP, |
| NULL, 0, |
| &ntlm->c_handle, &desc, |
| &attrs, &tsDummy); |
| |
| if (status == SEC_I_COMPLETE_AND_CONTINUE || |
| status == SEC_I_CONTINUE_NEEDED) { |
| s_pSecFn->CompleteAuthToken(&ntlm->c_handle, &desc); |
| } |
| else if (status != SEC_E_OK) { |
| s_pSecFn->FreeCredentialsHandle(&ntlm->handle); |
| return CURLE_RECV_ERROR; |
| } |
| |
| ntlm->has_handles = 1; |
| size = buf.cbBuffer; |
| } |
| #else |
| hostoff = 0; |
| domoff = hostoff + hostlen; /* This is 0: remember that host and domain |
| are empty */ |
| |
| /* Create and send a type-1 message: |
| |
| Index Description Content |
| 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" |
| (0x4e544c4d53535000) |
| 8 NTLM Message Type long (0x01000000) |
| 12 Flags long |
| 16 Supplied Domain security buffer(*) |
| 24 Supplied Workstation security buffer(*) |
| 32 start of data block |
| |
| */ |
| #if USE_NTLM2SESSION |
| #define NTLM2FLAG NTLMFLAG_NEGOTIATE_NTLM2_KEY |
| #else |
| #define NTLM2FLAG 0 |
| #endif |
| snprintf((char *)ntlmbuf, sizeof(ntlmbuf), NTLMSSP_SIGNATURE "%c" |
| "\x01%c%c%c" /* 32-bit type = 1 */ |
| "%c%c%c%c" /* 32-bit NTLM flag field */ |
| "%c%c" /* domain length */ |
| "%c%c" /* domain allocated space */ |
| "%c%c" /* domain name offset */ |
| "%c%c" /* 2 zeroes */ |
| "%c%c" /* host length */ |
| "%c%c" /* host allocated space */ |
| "%c%c" /* host name offset */ |
| "%c%c" /* 2 zeroes */ |
| "%s" /* host name */ |
| "%s", /* domain string */ |
| 0, /* trailing zero */ |
| 0,0,0, /* part of type-1 long */ |
| |
| LONGQUARTET( |
| NTLMFLAG_NEGOTIATE_OEM| |
| NTLMFLAG_REQUEST_TARGET| |
| NTLMFLAG_NEGOTIATE_NTLM_KEY| |
| NTLM2FLAG| |
| NTLMFLAG_NEGOTIATE_ALWAYS_SIGN |
| ), |
| SHORTPAIR(domlen), |
| SHORTPAIR(domlen), |
| SHORTPAIR(domoff), |
| 0,0, |
| SHORTPAIR(hostlen), |
| SHORTPAIR(hostlen), |
| SHORTPAIR(hostoff), |
| 0,0, |
| host /* this is empty */, domain /* this is empty */); |
| |
| /* initial packet length */ |
| size = 32 + hostlen + domlen; |
| #endif |
| |
| DEBUG_OUT({ |
| fprintf(stderr, "**** TYPE1 header flags=0x%02.2x%02.2x%02.2x%02.2x 0x%08.8x ", |
| LONGQUARTET(NTLMFLAG_NEGOTIATE_OEM| |
| NTLMFLAG_REQUEST_TARGET| |
| NTLMFLAG_NEGOTIATE_NTLM_KEY| |
| NTLM2FLAG| |
| NTLMFLAG_NEGOTIATE_ALWAYS_SIGN), |
| NTLMFLAG_NEGOTIATE_OEM| |
| NTLMFLAG_REQUEST_TARGET| |
| NTLMFLAG_NEGOTIATE_NTLM_KEY| |
| NTLM2FLAG| |
| NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); |
| print_flags(stderr, |
| NTLMFLAG_NEGOTIATE_OEM| |
| NTLMFLAG_REQUEST_TARGET| |
| NTLMFLAG_NEGOTIATE_NTLM_KEY| |
| NTLM2FLAG| |
| NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); |
| fprintf(stderr, "\n****\n"); |
| }); |
| |
| /* now size is the size of the base64 encoded package size */ |
| size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); |
| |
| if(size >0 ) { |
| Curl_safefree(*allocuserpwd); |
| *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n", |
| proxy?"Proxy-":"", |
| base64); |
| DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd)); |
| free(base64); |
| } |
| else |
| return CURLE_OUT_OF_MEMORY; /* FIX TODO */ |
| |
| break; |
| |
| case NTLMSTATE_TYPE2: |
| /* We received the type-2 message already, create a type-3 message: |
| |
| Index Description Content |
| 0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP" |
| (0x4e544c4d53535000) |
| 8 NTLM Message Type long (0x03000000) |
| 12 LM/LMv2 Response security buffer(*) |
| 20 NTLM/NTLMv2 Response security buffer(*) |
| 28 Domain Name security buffer(*) |
| 36 User Name security buffer(*) |
| 44 Workstation Name security buffer(*) |
| (52) Session Key (optional) security buffer(*) |
| (60) Flags (optional) long |
| 52 (64) start of data block |
| |
| */ |
| |
| { |
| #ifdef USE_WINDOWS_SSPI |
| SecBuffer type_2, type_3; |
| SecBufferDesc type_2_desc, type_3_desc; |
| SECURITY_STATUS status; |
| ULONG attrs; |
| TimeStamp tsDummy; /* For Windows 9x compatibility of SPPI calls */ |
| |
| type_2_desc.ulVersion = type_3_desc.ulVersion = SECBUFFER_VERSION; |
| type_2_desc.cBuffers = type_3_desc.cBuffers = 1; |
| type_2_desc.pBuffers = &type_2; |
| type_3_desc.pBuffers = &type_3; |
| |
| type_2.BufferType = SECBUFFER_TOKEN; |
| type_2.pvBuffer = ntlm->type_2; |
| type_2.cbBuffer = ntlm->n_type_2; |
| type_3.BufferType = SECBUFFER_TOKEN; |
| type_3.pvBuffer = ntlmbuf; |
| type_3.cbBuffer = sizeof(ntlmbuf); |
| |
| status = s_pSecFn->InitializeSecurityContext(&ntlm->handle, &ntlm->c_handle, |
| (char *) host, |
| ISC_REQ_CONFIDENTIALITY | |
| ISC_REQ_REPLAY_DETECT | |
| ISC_REQ_CONNECTION, |
| 0, SECURITY_NETWORK_DREP, &type_2_desc, |
| 0, &ntlm->c_handle, &type_3_desc, |
| &attrs, &tsDummy); |
| |
| if (status != SEC_E_OK) |
| return CURLE_RECV_ERROR; |
| |
| size = type_3.cbBuffer; |
| |
| ntlm_sspi_cleanup(ntlm); |
| |
| #else |
| int lmrespoff; |
| unsigned char lmresp[24]; /* fixed-size */ |
| #if USE_NTRESPONSES |
| int ntrespoff; |
| unsigned char ntresp[24]; /* fixed-size */ |
| #endif |
| size_t useroff; |
| const char *user; |
| size_t userlen; |
| |
| user = strchr(userp, '\\'); |
| if(!user) |
| user = strchr(userp, '/'); |
| |
| if (user) { |
| domain = userp; |
| domlen = (user - domain); |
| user++; |
| } |
| else |
| user = userp; |
| userlen = strlen(user); |
| |
| if (gethostname(host, HOSTNAME_MAX)) { |
| infof(conn->data, "gethostname() failed, continuing without!"); |
| hostlen = 0; |
| } |
| else { |
| /* If the workstation if configured with a full DNS name (i.e. |
| * workstation.somewhere.net) gethostname() returns the fully qualified |
| * name, which NTLM doesn't like. |
| */ |
| char *dot = strchr(host, '.'); |
| if (dot) |
| *dot = '\0'; |
| hostlen = strlen(host); |
| } |
| |
| #if USE_NTLM2SESSION |
| /* We don't support NTLM2 if we don't have USE_NTRESPONSES */ |
| if (ntlm->flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) { |
| unsigned char ntbuffer[0x18]; |
| unsigned char tmp[0x18]; |
| unsigned char md5sum[MD5_DIGEST_LENGTH]; |
| MD5_CTX MD5; |
| unsigned char random[8]; |
| |
| /* Need to create 8 bytes random data */ |
| Curl_ossl_seed(conn->data); /* Initiate the seed if not already done */ |
| RAND_bytes(random,8); |
| |
| /* 8 bytes random data as challenge in lmresp */ |
| memcpy(lmresp,random,8); |
| /* Pad with zeros */ |
| memset(lmresp+8,0,0x10); |
| |
| /* Fill tmp with challenge(nonce?) + random */ |
| memcpy(tmp,&ntlm->nonce[0],8); |
| memcpy(tmp+8,random,8); |
| |
| MD5_Init(&MD5); |
| MD5_Update(&MD5, tmp, 16); |
| MD5_Final(md5sum, &MD5); |
| /* We shall only use the first 8 bytes of md5sum, |
| but the des code in lm_resp only encrypt the first 8 bytes */ |
| mk_nt_hash(conn->data, passwdp, ntbuffer); |
| lm_resp(ntbuffer, md5sum, ntresp); |
| |
| /* End of NTLM2 Session code */ |
| } |
| else { |
| #endif |
| |
| #if USE_NTRESPONSES |
| unsigned char ntbuffer[0x18]; |
| #endif |
| unsigned char lmbuffer[0x18]; |
| |
| #if USE_NTRESPONSES |
| mk_nt_hash(conn->data, passwdp, ntbuffer); |
| lm_resp(ntbuffer, &ntlm->nonce[0], ntresp); |
| #endif |
| |
| mk_lm_hash(conn->data, passwdp, lmbuffer); |
| lm_resp(lmbuffer, &ntlm->nonce[0], lmresp); |
| /* A safer but less compatible alternative is: |
| * lm_resp(ntbuffer, &ntlm->nonce[0], lmresp); |
| * See http://davenport.sourceforge.net/ntlm.html#ntlmVersion2 */ |
| #if USE_NTLM2SESSION |
| } |
| #endif |
| |
| lmrespoff = 64; /* size of the message header */ |
| #if USE_NTRESPONSES |
| ntrespoff = lmrespoff + 0x18; |
| domoff = ntrespoff + 0x18; |
| #else |
| domoff = lmrespoff + 0x18; |
| #endif |
| useroff = domoff + domlen; |
| hostoff = useroff + userlen; |
| |
| /* Create the big type-3 message binary blob */ |
| size = snprintf((char *)ntlmbuf, sizeof(ntlmbuf), |
| NTLMSSP_SIGNATURE "%c" |
| "\x03%c%c%c" /* type-3, 32 bits */ |
| |
| "%c%c" /* LanManager length */ |
| "%c%c" /* LanManager allocated space */ |
| "%c%c" /* LanManager offset */ |
| "%c%c" /* 2 zeroes */ |
| |
| "%c%c" /* NT-response length */ |
| "%c%c" /* NT-response allocated space */ |
| "%c%c" /* NT-response offset */ |
| "%c%c" /* 2 zeroes */ |
| |
| "%c%c" /* domain length */ |
| "%c%c" /* domain allocated space */ |
| "%c%c" /* domain name offset */ |
| "%c%c" /* 2 zeroes */ |
| |
| "%c%c" /* user length */ |
| "%c%c" /* user allocated space */ |
| "%c%c" /* user offset */ |
| "%c%c" /* 2 zeroes */ |
| |
| "%c%c" /* host length */ |
| "%c%c" /* host allocated space */ |
| "%c%c" /* host offset */ |
| "%c%c" /* 2 zeroes */ |
| |
| "%c%c" /* session key length (unknown purpose) */ |
| "%c%c" /* session key allocated space (unknown purpose) */ |
| "%c%c" /* session key offset (unknown purpose) */ |
| "%c%c" /* 2 zeroes */ |
| |
| "%c%c%c%c" /* flags */ |
| |
| /* domain string */ |
| /* user string */ |
| /* host string */ |
| /* LanManager response */ |
| /* NT response */ |
| , |
| 0, /* zero termination */ |
| 0,0,0, /* type-3 long, the 24 upper bits */ |
| |
| SHORTPAIR(0x18), /* LanManager response length, twice */ |
| SHORTPAIR(0x18), |
| SHORTPAIR(lmrespoff), |
| 0x0, 0x0, |
| |
| #if USE_NTRESPONSES |
| SHORTPAIR(0x18), /* NT-response length, twice */ |
| SHORTPAIR(0x18), |
| SHORTPAIR(ntrespoff), |
| 0x0, 0x0, |
| #else |
| 0x0, 0x0, |
| 0x0, 0x0, |
| 0x0, 0x0, |
| 0x0, 0x0, |
| #endif |
| SHORTPAIR(domlen), |
| SHORTPAIR(domlen), |
| SHORTPAIR(domoff), |
| 0x0, 0x0, |
| |
| SHORTPAIR(userlen), |
| SHORTPAIR(userlen), |
| SHORTPAIR(useroff), |
| 0x0, 0x0, |
| |
| SHORTPAIR(hostlen), |
| SHORTPAIR(hostlen), |
| SHORTPAIR(hostoff), |
| 0x0, 0x0, |
| |
| 0x0, 0x0, |
| 0x0, 0x0, |
| 0x0, 0x0, |
| 0x0, 0x0, |
| |
| LONGQUARTET(ntlm->flags)); |
| DEBUG_OUT(assert(size==64)); |
| |
| DEBUG_OUT(assert(size == lmrespoff)); |
| /* We append the binary hashes */ |
| if(size < (sizeof(ntlmbuf) - 0x18)) { |
| memcpy(&ntlmbuf[size], lmresp, 0x18); |
| size += 0x18; |
| } |
| |
| DEBUG_OUT({ |
| fprintf(stderr, "**** TYPE3 header lmresp="); |
| print_hex(stderr, (char *)&ntlmbuf[lmrespoff], 0x18); |
| }); |
| |
| #if USE_NTRESPONSES |
| if(size < (sizeof(ntlmbuf) - 0x18)) { |
| DEBUG_OUT(assert(size == ntrespoff)); |
| memcpy(&ntlmbuf[size], ntresp, 0x18); |
| size += 0x18; |
| } |
| |
| DEBUG_OUT({ |
| fprintf(stderr, "\n ntresp="); |
| print_hex(stderr, (char *)&ntlmbuf[ntrespoff], 0x18); |
| }); |
| |
| #endif |
| |
| DEBUG_OUT({ |
| fprintf(stderr, "\n flags=0x%02.2x%02.2x%02.2x%02.2x 0x%08.8x ", |
| LONGQUARTET(ntlm->flags), ntlm->flags); |
| print_flags(stderr, ntlm->flags); |
| fprintf(stderr, "\n****\n"); |
| }); |
| |
| |
| /* Make sure that the domain, user and host strings fit in the target |
| buffer before we copy them there. */ |
| if(size + userlen + domlen + hostlen >= sizeof(ntlmbuf)) { |
| failf(conn->data, "user + domain + host name too big"); |
| return CURLE_OUT_OF_MEMORY; |
| } |
| |
| curlassert(size == domoff); |
| memcpy(&ntlmbuf[size], domain, domlen); |
| size += domlen; |
| |
| curlassert(size == useroff); |
| memcpy(&ntlmbuf[size], user, userlen); |
| size += userlen; |
| |
| curlassert(size == hostoff); |
| memcpy(&ntlmbuf[size], host, hostlen); |
| size += hostlen; |
| |
| #ifdef CURL_DOES_CONVERSIONS |
| /* convert domain, user, and host to ASCII but leave the rest as-is */ |
| if(CURLE_OK != Curl_convert_to_network(conn->data, |
| (char *)&ntlmbuf[domoff], |
| size-domoff)) { |
| return CURLE_CONV_FAILED; |
| } |
| #endif /* CURL_DOES_CONVERSIONS */ |
| |
| #endif |
| |
| /* convert the binary blob into base64 */ |
| size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); |
| |
| if(size >0 ) { |
| Curl_safefree(*allocuserpwd); |
| *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n", |
| proxy?"Proxy-":"", |
| base64); |
| DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd)); |
| free(base64); |
| } |
| else |
| return CURLE_OUT_OF_MEMORY; /* FIX TODO */ |
| |
| ntlm->state = NTLMSTATE_TYPE3; /* we sent a type-3 */ |
| authp->done = TRUE; |
| } |
| break; |
| |
| case NTLMSTATE_TYPE3: |
| /* connection is already authenticated, |
| * don't send a header in future requests */ |
| if(*allocuserpwd) { |
| free(*allocuserpwd); |
| *allocuserpwd=NULL; |
| } |
| authp->done = TRUE; |
| break; |
| } |
| |
| return CURLE_OK; |
| } |
| |
| |
| void |
| Curl_ntlm_cleanup(struct connectdata *conn) |
| { |
| #ifdef USE_WINDOWS_SSPI |
| ntlm_sspi_cleanup(&conn->ntlm); |
| ntlm_sspi_cleanup(&conn->proxyntlm); |
| if (s_hSecDll != NULL) { |
| FreeLibrary(s_hSecDll); |
| s_hSecDll = NULL; |
| s_pSecFn = NULL; |
| } |
| #else |
| (void)conn; |
| #endif |
| } |
| |
| #endif /* USE_NTLM */ |
| #endif /* !CURL_DISABLE_HTTP */ |
