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authorSteve Holme <steve_holme@hotmail.com>2015-09-12 14:50:02 +0100
committerSteve Holme <steve_holme@hotmail.com>2016-03-25 15:11:09 +0000
commit6012fa5aee04e05960804041bbcb444698cb7a33 (patch)
treed3cc56c5005acbfcf509b00a805865432e2ed6fd /lib/vauth
parente1dca8a11706360ef0f9403492ea4c9b67692615 (diff)
vauth: Moved the NTLM authentication code to the new vauth directory
Diffstat (limited to 'lib/vauth')
-rw-r--r--lib/vauth/ntlm.c842
-rw-r--r--lib/vauth/ntlm.h143
-rw-r--r--lib/vauth/ntlm_sspi.c313
-rw-r--r--lib/vauth/vauth.h28
4 files changed, 1326 insertions, 0 deletions
diff --git a/lib/vauth/ntlm.c b/lib/vauth/ntlm.c
new file mode 100644
index 000000000..aef29bdfb
--- /dev/null
+++ b/lib/vauth/ntlm.c
@@ -0,0 +1,842 @@
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * 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.
+ *
+ * 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.
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+#if defined(USE_NTLM) && !defined(USE_WINDOWS_SSPI)
+
+/*
+ * NTLM details:
+ *
+ * http://davenport.sourceforge.net/ntlm.html
+ * http://www.innovation.ch/java/ntlm.html
+ */
+
+#define DEBUG_ME 0
+
+#include "urldata.h"
+#include "non-ascii.h"
+#include "sendf.h"
+#include "curl_base64.h"
+#include "curl_ntlm_core.h"
+#include "curl_gethostname.h"
+#include "curl_multibyte.h"
+#include "warnless.h"
+
+#include "vtls/vtls.h"
+
+#ifdef USE_NSS
+#include "vtls/nssg.h" /* for Curl_nss_force_init() */
+#endif
+
+#define BUILDING_CURL_NTLM_MSGS_C
+#include "vauth/vauth.h"
+#include "vauth/ntlm.h"
+#include "curl_endian.h"
+#include "curl_printf.h"
+
+/* The last #include files should be: */
+#include "curl_memory.h"
+#include "memdebug.h"
+
+/* "NTLMSSP" signature is always in ASCII regardless of the platform */
+#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50"
+
+#define SHORTPAIR(x) ((x) & 0xff), (((x) >> 8) & 0xff)
+#define LONGQUARTET(x) ((x) & 0xff), (((x) >> 8) & 0xff), \
+ (((x) >> 16) & 0xff), (((x) >> 24) & 0xff)
+
+#if DEBUG_ME
+# define DEBUG_OUT(x) x
+static void ntlm_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 & NTLMFLAG_NEGOTIATE_ANONYMOUS)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_ANONYMOUS ");
+ 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 ntlm_print_hex(FILE *handle, const char *buf, size_t len)
+{
+ const char *p = buf;
+
+ (void) handle;
+
+ fprintf(stderr, "0x");
+ while(len-- > 0)
+ fprintf(stderr, "%02.2x", (unsigned int)*p++);
+}
+#else
+# define DEBUG_OUT(x) Curl_nop_stmt
+#endif
+
+/*
+ * ntlm_decode_type2_target()
+ *
+ * This is used to decode the "target info" in the NTLM type-2 message
+ * received.
+ *
+ * Parameters:
+ *
+ * data [in] - The session handle.
+ * buffer [in] - The decoded type-2 message.
+ * size [in] - The input buffer size, at least 32 bytes.
+ * ntlm [in/out] - The NTLM data struct being used and modified.
+ *
+ * Returns CURLE_OK on success.
+ */
+static CURLcode ntlm_decode_type2_target(struct SessionHandle *data,
+ unsigned char *buffer,
+ size_t size,
+ struct ntlmdata *ntlm)
+{
+ unsigned short target_info_len = 0;
+ unsigned int target_info_offset = 0;
+
+#if defined(CURL_DISABLE_VERBOSE_STRINGS)
+ (void) data;
+#endif
+
+ if(size >= 48) {
+ target_info_len = Curl_read16_le(&buffer[40]);
+ target_info_offset = Curl_read32_le(&buffer[44]);
+ if(target_info_len > 0) {
+ if(((target_info_offset + target_info_len) > size) ||
+ (target_info_offset < 48)) {
+ infof(data, "NTLM handshake failure (bad type-2 message). "
+ "Target Info Offset Len is set incorrect by the peer\n");
+ return CURLE_BAD_CONTENT_ENCODING;
+ }
+
+ ntlm->target_info = malloc(target_info_len);
+ if(!ntlm->target_info)
+ return CURLE_OUT_OF_MEMORY;
+
+ memcpy(ntlm->target_info, &buffer[target_info_offset], target_info_len);
+ }
+ }
+
+ ntlm->target_info_len = target_info_len;
+
+ return CURLE_OK;
+}
+
+/*
+ NTLM message structure notes:
+
+ A 'short' is a 'network short', a little-endian 16-bit unsigned value.
+
+ A 'long' is a 'network long', a little-endian, 32-bit unsigned value.
+
+ A 'security buffer' represents a triplet used to point to a buffer,
+ consisting of two shorts and one long:
+
+ 1. A 'short' containing the length of the buffer content 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 in bytes,
+ from the beginning of the NTLM message.
+*/
+
+/*
+ * Curl_sasl_decode_ntlm_type2_message()
+ *
+ * This is used to decode an already encoded NTLM type-2 message. The message
+ * is first decoded from a base64 string into a raw NTLM message and checked
+ * for validity before the appropriate data for creating a type-3 message is
+ * written to the given NTLM data structure.
+ *
+ * Parameters:
+ *
+ * data [in] - The session handle.
+ * type2msg [in] - The base64 encoded type-2 message.
+ * ntlm [in/out] - The NTLM data struct being used and modified.
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_sasl_decode_ntlm_type2_message(struct SessionHandle *data,
+ const char *type2msg,
+ struct ntlmdata *ntlm)
+{
+ static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 };
+
+ /* NTLM type-2 message structure:
+
+ 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 8 bytes (two consecutive longs) (*)
+ (40) Target Information security buffer (*)
+ (48) OS Version Structure 8 bytes (*)
+ 32 (48) (56) Start of data block (*)
+ (*) -> Optional
+ */
+
+ CURLcode result = CURLE_OK;
+ unsigned char *type2 = NULL;
+ size_t type2_len = 0;
+
+#if defined(USE_NSS)
+ /* Make sure the crypto backend is initialized */
+ result = Curl_nss_force_init(data);
+ if(result)
+ return result;
+#elif defined(CURL_DISABLE_VERBOSE_STRINGS)
+ (void)data;
+#endif
+
+ /* Decode the base-64 encoded type-2 message */
+ if(strlen(type2msg) && *type2msg != '=') {
+ result = Curl_base64_decode(type2msg, &type2, &type2_len);
+ if(result)
+ return result;
+ }
+
+ /* Ensure we have a valid type-2 message */
+ if(!type2) {
+ infof(data, "NTLM handshake failure (empty type-2 message)\n");
+ return CURLE_BAD_CONTENT_ENCODING;
+ }
+
+ ntlm->flags = 0;
+
+ if((type2_len < 32) ||
+ (memcmp(type2, NTLMSSP_SIGNATURE, 8) != 0) ||
+ (memcmp(type2 + 8, type2_marker, sizeof(type2_marker)) != 0)) {
+ /* This was not a good enough type-2 message */
+ free(type2);
+ infof(data, "NTLM handshake failure (bad type-2 message)\n");
+ return CURLE_BAD_CONTENT_ENCODING;
+ }
+
+ ntlm->flags = Curl_read32_le(&type2[20]);
+ memcpy(ntlm->nonce, &type2[24], 8);
+
+ if(ntlm->flags & NTLMFLAG_NEGOTIATE_TARGET_INFO) {
+ result = ntlm_decode_type2_target(data, type2, type2_len, ntlm);
+ if(result) {
+ free(type2);
+ infof(data, "NTLM handshake failure (bad type-2 message)\n");
+ return result;
+ }
+ }
+
+ DEBUG_OUT({
+ fprintf(stderr, "**** TYPE2 header flags=0x%08.8lx ", ntlm->flags);
+ ntlm_print_flags(stderr, ntlm->flags);
+ fprintf(stderr, "\n nonce=");
+ ntlm_print_hex(stderr, (char *)ntlm->nonce, 8);
+ fprintf(stderr, "\n****\n");
+ fprintf(stderr, "**** Header %s\n ", header);
+ });
+
+ free(type2);
+
+ return result;
+}
+
+/* copy the source to the destination and fill in zeroes in every
+ other destination byte! */
+static void unicodecpy(unsigned char *dest, const char *src, size_t length)
+{
+ size_t i;
+ for(i = 0; i < length; i++) {
+ dest[2 * i] = (unsigned char)src[i];
+ dest[2 * i + 1] = '\0';
+ }
+}
+
+/*
+ * Curl_sasl_create_ntlm_type1_message()
+ *
+ * This is used to generate an already encoded NTLM type-1 message ready for
+ * sending to the recipient using the appropriate compile time crypto API.
+ *
+ * Parameters:
+ *
+ * userp [in] - The user name in the format User or Domain\User.
+ * passdwp [in] - The user's password.
+ * ntlm [in/out] - The NTLM data struct being used and modified.
+ * outptr [in/out] - The address where a pointer to newly allocated memory
+ * holding the result will be stored upon completion.
+ * outlen [out] - The length of the output message.
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_sasl_create_ntlm_type1_message(const char *userp,
+ const char *passwdp,
+ struct ntlmdata *ntlm,
+ char **outptr, size_t *outlen)
+{
+ /* NTLM type-1 message structure:
+
+ 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) OS Version Structure 8 bytes (*)
+ (32) (40) Start of data block (*)
+ (*) -> Optional
+ */
+
+ size_t size;
+
+ unsigned char ntlmbuf[NTLM_BUFSIZE];
+ const char *host = ""; /* empty */
+ const char *domain = ""; /* empty */
+ size_t hostlen = 0;
+ size_t domlen = 0;
+ size_t hostoff = 0;
+ size_t domoff = hostoff + hostlen; /* This is 0: remember that host and
+ domain are empty */
+ (void)userp;
+ (void)passwdp;
+
+ /* Clean up any former leftovers and initialise to defaults */
+ Curl_sasl_ntlm_cleanup(ntlm);
+
+#if USE_NTRESPONSES && USE_NTLM2SESSION
+#define NTLM2FLAG NTLMFLAG_NEGOTIATE_NTLM2_KEY
+#else
+#define NTLM2FLAG 0
+#endif
+ snprintf((char *)ntlmbuf, NTLM_BUFSIZE,
+ 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;
+
+ 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);
+ ntlm_print_flags(stderr,
+ NTLMFLAG_NEGOTIATE_OEM |
+ NTLMFLAG_REQUEST_TARGET |
+ NTLMFLAG_NEGOTIATE_NTLM_KEY |
+ NTLM2FLAG |
+ NTLMFLAG_NEGOTIATE_ALWAYS_SIGN);
+ fprintf(stderr, "\n****\n");
+ });
+
+ /* Return with binary blob encoded into base64 */
+ return Curl_base64_encode(NULL, (char *)ntlmbuf, size, outptr, outlen);
+}
+
+/*
+ * Curl_sasl_create_ntlm_type3_message()
+ *
+ * This is used to generate an already encoded NTLM type-3 message ready for
+ * sending to the recipient using the appropriate compile time crypto API.
+ *
+ * Parameters:
+ *
+ * data [in] - The session handle.
+ * userp [in] - The user name in the format User or Domain\User.
+ * passdwp [in] - The user's password.
+ * ntlm [in/out] - The NTLM data struct being used and modified.
+ * outptr [in/out] - The address where a pointer to newly allocated memory
+ * holding the result will be stored upon completion.
+ * outlen [out] - The length of the output message.
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_sasl_create_ntlm_type3_message(struct SessionHandle *data,
+ const char *userp,
+ const char *passwdp,
+ struct ntlmdata *ntlm,
+ char **outptr, size_t *outlen)
+
+{
+ /* NTLM type-3 message structure:
+
+ 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 Target Name security buffer
+ 36 User Name security buffer
+ 44 Workstation Name security buffer
+ (52) Session Key security buffer (*)
+ (60) Flags long (*)
+ (64) OS Version Structure 8 bytes (*)
+ 52 (64) (72) Start of data block
+ (*) -> Optional
+ */
+
+ CURLcode result = CURLE_OK;
+ size_t size;
+ unsigned char ntlmbuf[NTLM_BUFSIZE];
+ int lmrespoff;
+ unsigned char lmresp[24]; /* fixed-size */
+#if USE_NTRESPONSES
+ int ntrespoff;
+ unsigned int ntresplen = 24;
+ unsigned char ntresp[24]; /* fixed-size */
+ unsigned char *ptr_ntresp = &ntresp[0];
+ unsigned char *ntlmv2resp = NULL;
+#endif
+ bool unicode = (ntlm->flags & NTLMFLAG_NEGOTIATE_UNICODE) ? TRUE : FALSE;
+ char host[HOSTNAME_MAX + 1] = "";
+ const char *user;
+ const char *domain = "";
+ size_t hostoff = 0;
+ size_t useroff = 0;
+ size_t domoff = 0;
+ size_t hostlen = 0;
+ size_t userlen = 0;
+ size_t domlen = 0;
+
+ user = strchr(userp, '\\');
+ if(!user)
+ user = strchr(userp, '/');
+
+ if(user) {
+ domain = userp;
+ domlen = (user - domain);
+ user++;
+ }
+ else
+ user = userp;
+
+ if(user)
+ userlen = strlen(user);
+
+ /* Get the machine's un-qualified host name as NTLM doesn't like the fully
+ qualified domain name */
+ if(Curl_gethostname(host, sizeof(host))) {
+ infof(data, "gethostname() failed, continuing without!\n");
+ hostlen = 0;
+ }
+ else {
+ hostlen = strlen(host);
+ }
+
+#if USE_NTRESPONSES && USE_NTLM_V2
+ if(ntlm->target_info_len) {
+ unsigned char ntbuffer[0x18];
+ unsigned int entropy[2];
+ unsigned char ntlmv2hash[0x18];
+
+ entropy[0] = Curl_rand(data);
+ entropy[1] = Curl_rand(data);
+
+ result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer);
+ if(result)
+ return result;
+
+ result = Curl_ntlm_core_mk_ntlmv2_hash(user, userlen, domain, domlen,
+ ntbuffer, ntlmv2hash);
+ if(result)
+ return result;
+
+ /* LMv2 response */
+ result = Curl_ntlm_core_mk_lmv2_resp(ntlmv2hash,
+ (unsigned char *)&entropy[0],
+ &ntlm->nonce[0], lmresp);
+ if(result)
+ return result;
+
+ /* NTLMv2 response */
+ result = Curl_ntlm_core_mk_ntlmv2_resp(ntlmv2hash,
+ (unsigned char *)&entropy[0],
+ ntlm, &ntlmv2resp, &ntresplen);
+ if(result)
+ return result;
+
+ ptr_ntresp = ntlmv2resp;
+ }
+ else
+#endif
+
+#if USE_NTRESPONSES && 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];
+ unsigned int entropy[2];
+
+ /* Need to create 8 bytes random data */
+ entropy[0] = Curl_rand(data);
+ entropy[1] = Curl_rand(data);
+
+ /* 8 bytes random data as challenge in lmresp */
+ memcpy(lmresp, entropy, 8);
+
+ /* Pad with zeros */
+ memset(lmresp + 8, 0, 0x10);
+
+ /* Fill tmp with challenge(nonce?) + entropy */
+ memcpy(tmp, &ntlm->nonce[0], 8);
+ memcpy(tmp + 8, entropy, 8);
+
+ result = Curl_ssl_md5sum(tmp, 16, md5sum, MD5_DIGEST_LENGTH);
+ if(!result)
+ /* We shall only use the first 8 bytes of md5sum, but the des code in
+ Curl_ntlm_core_lm_resp only encrypt the first 8 bytes */
+ result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer);
+ if(result)
+ return result;
+
+ Curl_ntlm_core_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
+ result = Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer);
+ if(result)
+ return result;
+
+ Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], ntresp);
+#endif
+
+ result = Curl_ntlm_core_mk_lm_hash(data, passwdp, lmbuffer);
+ if(result)
+ return result;
+
+ Curl_ntlm_core_lm_resp(lmbuffer, &ntlm->nonce[0], lmresp);
+
+ /* A safer but less compatible alternative is:
+ * Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], lmresp);
+ * See http://davenport.sourceforge.net/ntlm.html#ntlmVersion2 */
+ }
+
+ if(unicode) {
+ domlen = domlen * 2;
+ userlen = userlen * 2;
+ hostlen = hostlen * 2;
+ }
+
+ lmrespoff = 64; /* size of the message header */
+#if USE_NTRESPONSES
+ ntrespoff = lmrespoff + 0x18;
+ domoff = ntrespoff + ntresplen;
+#else
+ domoff = lmrespoff + 0x18;
+#endif
+ useroff = domoff + domlen;
+ hostoff = useroff + userlen;
+
+ /* Create the big type-3 message binary blob */
+ size = snprintf((char *)ntlmbuf, NTLM_BUFSIZE,
+ NTLMSSP_SIGNATURE "%c"
+ "\x03%c%c%c" /* 32-bit type = 3 */
+
+ "%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(ntresplen), /* NT-response length, twice */
+ SHORTPAIR(ntresplen),
+ 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));
+
+ DEBUGASSERT(size == 64);
+ DEBUGASSERT(size == (size_t)lmrespoff);
+
+ /* We append the binary hashes */
+ if(size < (NTLM_BUFSIZE - 0x18)) {
+ memcpy(&ntlmbuf[size], lmresp, 0x18);
+ size += 0x18;
+ }
+
+ DEBUG_OUT({
+ fprintf(stderr, "**** TYPE3 header lmresp=");
+ ntlm_print_hex(stderr, (char *)&ntlmbuf[lmrespoff], 0x18);
+ });
+
+#if USE_NTRESPONSES
+ if(size < (NTLM_BUFSIZE - ntresplen)) {
+ DEBUGASSERT(size == (size_t)ntrespoff);
+ memcpy(&ntlmbuf[size], ptr_ntresp, ntresplen);
+ size += ntresplen;
+ }
+
+ DEBUG_OUT({
+ fprintf(stderr, "\n ntresp=");
+ ntlm_print_hex(stderr, (char *)&ntlmbuf[ntrespoff], ntresplen);
+ });
+
+ free(ntlmv2resp);/* Free the dynamic buffer allocated for NTLMv2 */
+
+#endif
+
+ DEBUG_OUT({
+ fprintf(stderr, "\n flags=0x%02.2x%02.2x%02.2x%02.2x 0x%08.8x ",
+ LONGQUARTET(ntlm->flags), ntlm->flags);
+ ntlm_print_flags(stderr, ntlm->flags);
+ fprintf(stderr, "\n****\n");
+ });
+
+ /* Make sure that the domain, user and host strings fit in the
+ buffer before we copy them there. */
+ if(size + userlen + domlen + hostlen >= NTLM_BUFSIZE) {
+ failf(data, "user + domain + host name too big");
+ return CURLE_OUT_OF_MEMORY;
+ }
+
+ DEBUGASSERT(size == domoff);
+ if(unicode)
+ unicodecpy(&ntlmbuf[size], domain, domlen / 2);
+ else
+ memcpy(&ntlmbuf[size], domain, domlen);
+
+ size += domlen;
+
+ DEBUGASSERT(size == useroff);
+ if(unicode)
+ unicodecpy(&ntlmbuf[size], user, userlen / 2);
+ else
+ memcpy(&ntlmbuf[size], user, userlen);
+
+ size += userlen;
+
+ DEBUGASSERT(size == hostoff);
+ if(unicode)
+ unicodecpy(&ntlmbuf[size], host, hostlen / 2);
+ else
+ memcpy(&ntlmbuf[size], host, hostlen);
+
+ size += hostlen;
+
+ /* Convert domain, user, and host to ASCII but leave the rest as-is */
+ result = Curl_convert_to_network(data, (char *)&ntlmbuf[domoff],
+ size - domoff);
+ if(result)
+ return CURLE_CONV_FAILED;
+
+ /* Return with binary blob encoded into base64 */
+ result = Curl_base64_encode(NULL, (char *)ntlmbuf, size, outptr, outlen);
+
+ Curl_sasl_ntlm_cleanup(ntlm);
+
+ return result;
+}
+
+/*
+* Curl_sasl_ntlm_cleanup()
+*
+* This is used to clean up the NTLM specific data.
+*
+* Parameters:
+*
+* ntlm [in/out] - The NTLM data struct being cleaned up.
+*
+*/
+void Curl_sasl_ntlm_cleanup(struct ntlmdata *ntlm)
+{
+ /* Free the target info */
+ Curl_safefree(ntlm->target_info);
+
+ /* Reset any variables */
+ ntlm->target_info_len = 0;
+}
+
+#endif /* USE_NTLM && !USE_WINDOWS_SSPI */
diff --git a/lib/vauth/ntlm.h b/lib/vauth/ntlm.h
new file mode 100644
index 000000000..9a393f014
--- /dev/null
+++ b/lib/vauth/ntlm.h
@@ -0,0 +1,143 @@
+#ifndef HEADER_CURL_NTLM_H
+#define HEADER_CURL_NTLM_H
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2015, 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.
+ *
+ * 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.
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+#ifdef USE_NTLM
+
+/* NTLM buffer fixed size, large enough for long user + host + domain */
+#define NTLM_BUFSIZE 1024
+
+/* Stuff only required for curl_ntlm_msgs.c */
+#ifdef BUILDING_CURL_NTLM_MSGS_C
+
+/* Flag bits definitions based on http://davenport.sourceforge.net/ntlm.html */
+
+#define NTLMFLAG_NEGOTIATE_UNICODE (1<<0)
+/* Indicates that Unicode strings are supported for use in security buffer
+ data. */
+
+#define NTLMFLAG_NEGOTIATE_OEM (1<<1)
+/* Indicates that OEM strings are supported for use in security buffer data. */
+
+#define NTLMFLAG_REQUEST_TARGET (1<<2)
+/* Requests that the server's authentication realm be included in the Type 2
+ message. */
+
+/* unknown (1<<3) */
+#define NTLMFLAG_NEGOTIATE_SIGN (1<<4)
+/* Specifies that authenticated communication between the client and server
+ should carry a digital signature (message integrity). */
+
+#define NTLMFLAG_NEGOTIATE_SEAL (1<<5)
+/* Specifies that authenticated communication between the client and server
+ should be encrypted (message confidentiality). */
+
+#define NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE (1<<6)
+/* Indicates that datagram authentication is being used. */
+
+#define NTLMFLAG_NEGOTIATE_LM_KEY (1<<7)
+/* Indicates that the LAN Manager session key should be used for signing and
+ sealing authenticated communications. */
+
+#define NTLMFLAG_NEGOTIATE_NETWARE (1<<8)
+/* unknown purpose */
+
+#define NTLMFLAG_NEGOTIATE_NTLM_KEY (1<<9)
+/* Indicates that NTLM authentication is being used. */
+
+/* unknown (1<<10) */
+
+#define NTLMFLAG_NEGOTIATE_ANONYMOUS (1<<11)
+/* Sent by the client in the Type 3 message to indicate that an anonymous
+ context has been established. This also affects the response fields. */
+
+#define NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED (1<<12)
+/* Sent by the client in the Type 1 message to indicate that a desired
+ authentication realm is included in the message. */
+
+#define NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED (1<<13)
+/* Sent by the client in the Type 1 message to indicate that the client
+ workstation's name is included in the message. */
+
+#define NTLMFLAG_NEGOTIATE_LOCAL_CALL (1<<14)
+/* Sent by the server to indicate that the server and client are on the same
+ machine. Implies that the client may use a pre-established local security
+ context rather than responding to the challenge. */
+
+#define NTLMFLAG_NEGOTIATE_ALWAYS_SIGN (1<<15)
+/* Indicates that authenticated communication between the client and server
+ should be signed with a "dummy" signature. */
+
+#define NTLMFLAG_TARGET_TYPE_DOMAIN (1<<16)
+/* Sent by the server in the Type 2 message to indicate that the target
+ authentication realm is a domain. */
+
+#define NTLMFLAG_TARGET_TYPE_SERVER (1<<17)
+/* Sent by the server in the Type 2 message to indicate that the target
+ authentication realm is a server. */
+
+#define NTLMFLAG_TARGET_TYPE_SHARE (1<<18)
+/* Sent by the server in the Type 2 message to indicate that the target
+ authentication realm is a share. Presumably, this is for share-level
+ authentication. Usage is unclear. */
+
+#define NTLMFLAG_NEGOTIATE_NTLM2_KEY (1<<19)
+/* Indicates that the NTLM2 signing and sealing scheme should be used for
+ protecting authenticated communications. */
+
+#define NTLMFLAG_REQUEST_INIT_RESPONSE (1<<20)
+/* unknown purpose */
+
+#define NTLMFLAG_REQUEST_ACCEPT_RESPONSE (1<<21)
+/* unknown purpose */
+
+#define NTLMFLAG_REQUEST_NONNT_SESSION_KEY (1<<22)
+/* unknown purpose */
+
+#define NTLMFLAG_NEGOTIATE_TARGET_INFO (1<<23)
+/* Sent by the server in the Type 2 message to indicate that it is including a
+ Target Information block in the message. */
+
+/* unknown (1<24) */
+/* unknown (1<25) */
+/* unknown (1<26) */
+/* unknown (1<27) */
+/* unknown (1<28) */
+
+#define NTLMFLAG_NEGOTIATE_128 (1<<29)
+/* Indicates that 128-bit encryption is supported. */
+
+#define NTLMFLAG_NEGOTIATE_KEY_EXCHANGE (1<<30)
+/* Indicates that the client will provide an encrypted master key in
+ the "Session Key" field of the Type 3 message. */
+
+#define NTLMFLAG_NEGOTIATE_56 (1<<31)
+/* Indicates that 56-bit encryption is supported. */
+
+#endif /* BUILDING_CURL_NTLM_MSGS_C */
+
+#endif /* USE_NTLM */
+
+#endif /* HEADER_CURL_NTLM_H */
diff --git a/lib/vauth/ntlm_sspi.c b/lib/vauth/ntlm_sspi.c
new file mode 100644
index 000000000..3f48d5080
--- /dev/null
+++ b/lib/vauth/ntlm_sspi.c
@@ -0,0 +1,313 @@
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * 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.
+ *
+ * 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.
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+#if defined(USE_WINDOWS_SSPI) && defined(USE_NTLM)
+
+#include <curl/curl.h>
+
+#include "vauth/vauth.h"
+#include "urldata.h"
+#include "curl_base64.h"
+#include "warnless.h"
+#include "curl_multibyte.h"
+#include "sendf.h"
+
+/* The last #include files should be: */
+#include "curl_memory.h"
+#include "memdebug.h"
+
+/*
+ * Curl_sasl_create_ntlm_type1_message()
+ *
+ * This is used to generate an already encoded NTLM type-1 message ready for
+ * sending to the recipient.
+ *
+ * Parameters:
+ *
+ * userp [in] - The user name in the format User or Domain\User.
+ * passdwp [in] - The user's password.
+ * ntlm [in/out] - The NTLM data struct being used and modified.
+ * outptr [in/out] - The address where a pointer to newly allocated memory
+ * holding the result will be stored upon completion.
+ * outlen [out] - The length of the output message.
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_sasl_create_ntlm_type1_message(const char *userp,
+ const char *passwdp,
+ struct ntlmdata *ntlm,
+ char **outptr, size_t *outlen)
+{
+ PSecPkgInfo SecurityPackage;
+ SecBuffer type_1_buf;
+ SecBufferDesc type_1_desc;
+ SECURITY_STATUS status;
+ unsigned long attrs;
+ TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */
+
+ /* Clean up any former leftovers and initialise to defaults */
+ Curl_sasl_ntlm_cleanup(ntlm);
+
+ /* Query the security package for NTLM */
+ status = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT(SP_NAME_NTLM),
+ &SecurityPackage);
+ if(status != SEC_E_OK)
+ return CURLE_NOT_BUILT_IN;
+
+ ntlm->token_max = SecurityPackage->cbMaxToken;
+
+ /* Release the package buffer as it is not required anymore */
+ s_pSecFn->FreeContextBuffer(SecurityPackage);
+
+ /* Allocate our output buffer */
+ ntlm->output_token = malloc(ntlm->token_max);
+ if(!ntlm->output_token)
+ return CURLE_OUT_OF_MEMORY;
+
+ if(userp && *userp) {
+ CURLcode result;
+
+ /* Populate our identity structure */
+ result = Curl_create_sspi_identity(userp, passwdp, &ntlm->identity);
+ if(result)
+ return result;
+
+ /* Allow proper cleanup of the identity structure */
+ ntlm->p_identity = &ntlm->identity;
+ }
+ else
+ /* Use the current Windows user */
+ ntlm->p_identity = NULL;
+
+ /* Allocate our credentials handle */
+ ntlm->credentials = malloc(sizeof(CredHandle));
+ if(!ntlm->credentials)
+ return CURLE_OUT_OF_MEMORY;
+
+ memset(ntlm->credentials, 0, sizeof(CredHandle));
+
+ /* Acquire our credentials handle */
+ status = s_pSecFn->AcquireCredentialsHandle(NULL,
+ (TCHAR *) TEXT(SP_NAME_NTLM),
+ SECPKG_CRED_OUTBOUND, NULL,
+ ntlm->p_identity, NULL, NULL,
+ ntlm->credentials, &expiry);
+ if(status != SEC_E_OK)
+ return CURLE_LOGIN_DENIED;
+
+ /* Allocate our new context handle */
+ ntlm->context = malloc(sizeof(CtxtHandle));
+ if(!ntlm->context)
+ return CURLE_OUT_OF_MEMORY;
+
+ memset(ntlm->context, 0, sizeof(CtxtHandle));
+
+ /* Setup the type-1 "output" security buffer */
+ type_1_desc.ulVersion = SECBUFFER_VERSION;
+ type_1_desc.cBuffers = 1;
+ type_1_desc.pBuffers = &type_1_buf;
+ type_1_buf.BufferType = SECBUFFER_TOKEN;
+ type_1_buf.pvBuffer = ntlm->output_token;
+ type_1_buf.cbBuffer = curlx_uztoul(ntlm->token_max);
+
+ /* Generate our type-1 message */
+ status = s_pSecFn->InitializeSecurityContext(ntlm->credentials, NULL,
+ (TCHAR *) TEXT(""),
+ 0, 0, SECURITY_NETWORK_DREP,
+ NULL, 0,
+ ntlm->context, &type_1_desc,
+ &attrs, &expiry);
+ if(status == SEC_I_COMPLETE_NEEDED ||
+ status == SEC_I_COMPLETE_AND_CONTINUE)
+ s_pSecFn->CompleteAuthToken(ntlm->context, &type_1_desc);
+ else if(status != SEC_E_OK && status != SEC_I_CONTINUE_NEEDED)
+ return CURLE_RECV_ERROR;
+
+ /* Base64 encode the response */
+ return Curl_base64_encode(NULL, (char *) ntlm->output_token,
+ type_1_buf.cbBuffer, outptr, outlen);
+}
+
+/*
+ * Curl_sasl_decode_ntlm_type2_message()
+ *
+ * This is used to decode an already encoded NTLM type-2 message.
+ *
+ * Parameters:
+ *
+ * data [in] - The session handle.
+ * type2msg [in] - The base64 encoded type-2 message.
+ * ntlm [in/out] - The NTLM data struct being used and modified.
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_sasl_decode_ntlm_type2_message(struct SessionHandle *data,
+ const char *type2msg,
+ struct ntlmdata *ntlm)
+{
+ CURLcode result = CURLE_OK;
+ unsigned char *type2 = NULL;
+ size_t type2_len = 0;
+
+#if defined(CURL_DISABLE_VERBOSE_STRINGS)
+ (void) data;
+#endif
+
+ /* Decode the base-64 encoded type-2 message */
+ if(strlen(type2msg) && *type2msg != '=') {
+ result = Curl_base64_decode(type2msg, &type2, &type2_len);
+ if(result)
+ return result;
+ }
+
+ /* Ensure we have a valid type-2 message */
+ if(!type2) {
+ infof(data, "NTLM handshake failure (empty type-2 message)\n");
+
+ return CURLE_BAD_CONTENT_ENCODING;
+ }
+
+ /* Simply store the challenge for use later */
+ ntlm->input_token = type2;
+ ntlm->input_token_len = type2_len;
+
+ return result;
+}
+
+/*
+ * Curl_sasl_create_ntlm_type3_message()
+ *
+ * This is used to generate an already encoded NTLM type-3 message ready for
+ * sending to the recipient.
+ *
+ * Parameters:
+ *
+ * data [in] - The session handle.
+ * userp [in] - The user name in the format User or Domain\User.
+ * passdwp [in] - The user's password.
+ * ntlm [in/out] - The NTLM data struct being used and modified.
+ * outptr [in/out] - The address where a pointer to newly allocated memory
+ * holding the result will be stored upon completion.
+ * outlen [out] - The length of the output message.
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_sasl_create_ntlm_type3_message(struct SessionHandle *data,
+ const char *userp,
+ const char *passwdp,
+ struct ntlmdata *ntlm,
+ char **outptr, size_t *outlen)
+{
+ CURLcode result = CURLE_OK;
+ SecBuffer type_2_buf;
+ SecBuffer type_3_buf;
+ SecBufferDesc type_2_desc;
+ SecBufferDesc type_3_desc;
+ SECURITY_STATUS status;
+ unsigned long attrs;
+ TimeStamp expiry; /* For Windows 9x compatibility of SSPI calls */
+
+ (void) passwdp;
+ (void) userp;
+
+ /* Setup the type-2 "input" security buffer */
+ type_2_desc.ulVersion = SECBUFFER_VERSION;
+ type_2_desc.cBuffers = 1;
+ type_2_desc.pBuffers = &type_2_buf;
+ type_2_buf.BufferType = SECBUFFER_TOKEN;
+ type_2_buf.pvBuffer = ntlm->input_token;
+ type_2_buf.cbBuffer = curlx_uztoul(ntlm->input_token_len);
+
+ /* Setup the type-3 "output" security buffer */
+ type_3_desc.ulVersion = SECBUFFER_VERSION;
+ type_3_desc.cBuffers = 1;
+ type_3_desc.pBuffers = &type_3_buf;
+ type_3_buf.BufferType = SECBUFFER_TOKEN;
+ type_3_buf.pvBuffer = ntlm->output_token;
+ type_3_buf.cbBuffer = curlx_uztoul(ntlm->token_max);
+
+ /* Generate our type-3 message */
+ status = s_pSecFn->InitializeSecurityContext(ntlm->credentials,
+ ntlm->context,
+ (TCHAR *) TEXT(""),
+ 0, 0, SECURITY_NETWORK_DREP,
+ &type_2_desc,
+ 0, ntlm->context,
+ &type_3_desc,
+ &attrs, &expiry);
+ if(status != SEC_E_OK) {
+ infof(data, "NTLM handshake failure (type-3 message): Status=%x\n",
+ status);
+
+ return CURLE_RECV_ERROR;
+ }
+
+ /* Base64 encode the response */
+ result = Curl_base64_encode(data, (char *) ntlm->output_token,
+ type_3_buf.cbBuffer, outptr, outlen);
+
+ Curl_sasl_ntlm_cleanup(ntlm);
+
+ return result;
+}
+
+/*
+ * Curl_sasl_ntlm_cleanup()
+ *
+ * This is used to clean up the NTLM specific data.
+ *
+ * Parameters:
+ *
+ * ntlm [in/out] - The NTLM data struct being cleaned up.
+ *
+ */
+void Curl_sasl_ntlm_cleanup(struct ntlmdata *ntlm)
+{
+ /* Free our security context */
+ if(ntlm->context) {
+ s_pSecFn->DeleteSecurityContext(ntlm->context);
+ free(ntlm->context);
+ ntlm->context = NULL;
+ }
+
+ /* Free our credentials handle */
+ if(ntlm->credentials) {
+ s_pSecFn->FreeCredentialsHandle(ntlm->credentials);
+ free(ntlm->credentials);
+ ntlm->credentials = NULL;
+ }
+
+ /* Free our identity */
+ Curl_sspi_free_identity(ntlm->p_identity);
+ ntlm->p_identity = NULL;
+
+ /* Free the input and output tokens */
+ Curl_safefree(ntlm->input_token);
+ Curl_safefree(ntlm->output_token);
+
+ /* Reset any variables */
+ ntlm->token_max = 0;
+}
+
+#endif /* USE_WINDOWS_SSPI && USE_NTLM */
diff --git a/lib/vauth/vauth.h b/lib/vauth/vauth.h
index f38583a17..c26b9e31d 100644
--- a/lib/vauth/vauth.h
+++ b/lib/vauth/vauth.h
@@ -30,6 +30,10 @@ struct SessionHandle;
struct digestdata;
#endif
+#if defined(USE_NTLM)
+struct ntlmdata;
+#endif
+
#if defined(USE_KERBEROS5)
struct kerberos5data;
#endif
@@ -98,6 +102,30 @@ CURLcode Curl_sasl_create_digest_http_message(struct SessionHandle *data,
void Curl_sasl_digest_cleanup(struct digestdata *digest);
#endif /* !CURL_DISABLE_CRYPTO_AUTH */
+#if defined(USE_NTLM)
+/* This is used to generate a base64 encoded NTLM type-1 message */
+CURLcode Curl_sasl_create_ntlm_type1_message(const char *userp,
+ const char *passwdp,
+ struct ntlmdata *ntlm,
+ char **outptr,
+ size_t *outlen);
+
+/* This is used to decode a base64 encoded NTLM type-2 message */
+CURLcode Curl_sasl_decode_ntlm_type2_message(struct SessionHandle *data,
+ const char *type2msg,
+ struct ntlmdata *ntlm);
+
+/* This is used to generate a base64 encoded NTLM type-3 message */
+CURLcode Curl_sasl_create_ntlm_type3_message(struct SessionHandle *data,
+ const char *userp,
+ const char *passwdp,
+ struct ntlmdata *ntlm,
+ char **outptr, size_t *outlen);
+
+/* This is used to clean up the NTLM specific data */
+void Curl_sasl_ntlm_cleanup(struct ntlmdata *ntlm);
+#endif /* USE_NTLM */
+
#if defined(USE_KERBEROS5)
/* This is used to generate a base64 encoded GSSAPI (Kerberos V5) user token
message */