diff options
| -rw-r--r-- | lib/Makefile.inc | 2 | ||||
| -rw-r--r-- | lib/Makefile.vc6 | 1 | ||||
| -rw-r--r-- | lib/curl_ntlm.c | 1238 | ||||
| -rw-r--r-- | lib/curl_ntlm.h | 25 | ||||
| -rw-r--r-- | lib/http_ntlm.c | 1174 |
5 files changed, 1298 insertions, 1142 deletions
diff --git a/lib/Makefile.inc b/lib/Makefile.inc index e2570f523..147921d57 100644 --- a/lib/Makefile.inc +++ b/lib/Makefile.inc @@ -22,7 +22,7 @@ CSOURCES = file.c timeval.c base64.c hostip.c progress.c formdata.c \ pingpong.c rtsp.c curl_threads.c warnless.c hmac.c polarssl.c \ curl_rtmp.c openldap.c curl_gethostname.c gopher.c axtls.c \ idn_win32.c http_negotiate_sspi.c cyassl.c http_proxy.c non-ascii.c \ - asyn-ares.c asyn-thread.c curl_gssapi.c + asyn-ares.c asyn-thread.c curl_gssapi.c curl_ntlm.c HHEADERS = arpa_telnet.h netrc.h file.h timeval.h qssl.h hostip.h \ progress.h formdata.h cookie.h http.h sendf.h ftp.h url.h dict.h \ diff --git a/lib/Makefile.vc6 b/lib/Makefile.vc6 index fa1a7a49b..9afcf97ba 100644 --- a/lib/Makefile.vc6 +++ b/lib/Makefile.vc6 @@ -472,6 +472,7 @@ X_OBJS= \ $(DIROBJ)\curl_fnmatch.obj \
$(DIROBJ)\curl_gethostname.obj \
$(DIROBJ)\curl_memrchr.obj \
+ $(DIROBJ)\curl_ntlm.obj \
$(DIROBJ)\curl_rand.obj \
$(DIROBJ)\curl_rtmp.obj \
$(DIROBJ)\curl_sspi.obj \
diff --git a/lib/curl_ntlm.c b/lib/curl_ntlm.c new file mode 100644 index 000000000..a59b1fb21 --- /dev/null +++ b/lib/curl_ntlm.c @@ -0,0 +1,1238 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2011, 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. + * + ***************************************************************************/ + +#include "setup.h" + +/* NTLM details: + + http://davenport.sourceforge.net/ntlm.html + http://www.innovation.ch/java/ntlm.html +*/ + +#ifndef CURL_DISABLE_HTTP +#ifdef USE_NTLM + +#define DEBUG_ME 0 + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#ifdef HAVE_SYS_WAIT_H +#include <sys/wait.h> +#endif +#ifdef HAVE_SIGNAL_H +#include <signal.h> +#endif + +#if (defined(NETWARE) && !defined(__NOVELL_LIBC__)) +#include <netdb.h> +#endif + +#include "urldata.h" +#include "non-ascii.h" /* for Curl_convert_... prototypes */ +#include "sendf.h" +#include "select.h" +#include "rawstr.h" +#include "curl_base64.h" +#include "curl_ntlm.h" +#include "url.h" +#include "strerror.h" +#include "curl_gethostname.h" +#include "curl_memory.h" + +#define _MPRINTF_REPLACE /* use our functions only */ +#include <curl/mprintf.h> + +#ifdef USE_SSLEAY +#include "ssluse.h" +# ifdef USE_OPENSSL +# include <openssl/des.h> +# ifndef OPENSSL_NO_MD4 +# include <openssl/md4.h> +# endif +# include <openssl/md5.h> +# include <openssl/ssl.h> +# include <openssl/rand.h> +# else +# include <des.h> +# ifndef OPENSSL_NO_MD4 +# include <md4.h> +# endif +# include <md5.h> +# include <ssl.h> +# include <rand.h> +# endif + +#ifndef OPENSSL_VERSION_NUMBER +#error "OPENSSL_VERSION_NUMBER not defined" +#endif + +#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 + +#ifdef OPENSSL_NO_MD4 +/* This requires MD4, but OpenSSL was compiled without it */ +#define USE_NTRESPONSES 0 +#define USE_NTLM2SESSION 0 +#endif + +#elif defined(USE_GNUTLS) + +#include "gtls.h" +#include <gcrypt.h> + +#define MD5_DIGEST_LENGTH 16 +#define MD4_DIGEST_LENGTH 16 + +#elif defined(USE_NSS) + +#include "curl_md4.h" +#include "nssg.h" +#include <nss.h> +#include <pk11pub.h> +#include <hasht.h> +#define MD5_DIGEST_LENGTH MD5_LENGTH + +#elif defined(USE_WINDOWS_SSPI) + +#include "curl_sspi.h" + +#else +# error "Can't compile NTLM support without a crypto library." +#endif + +/* The last #include file should be: */ +#include "memdebug.h" + +/* Hostname buffer size */ +#define HOSTNAME_MAX 1024 + +/* "NTLMSSP" signature is always in ASCII regardless of the platform */ +#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50" + +#ifndef USE_NTRESPONSES +/* 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 +#endif + +#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; + fprintf(stderr, "0x"); + while(len-- > 0) + fprintf(stderr, "%02.2x", (unsigned int)*p++); +} +#else +# define DEBUG_OUT(x) +#endif + +#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. + * Argument is a pointer to a 4 byte buffer. + */ +static unsigned int readint_le(unsigned char *buf) +{ + return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) | + ((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24); +} +#endif + +/* + NTLM message structure notes: + + A 'short' is a little-endian, 16-bit unsigned value. + + A 'long' is 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. +*/ + +CURLcode Curl_ntlm_decode_type2_message(struct SessionHandle *data, + const char* header, + struct ntlmdata* ntlm) +{ +#ifndef USE_WINDOWS_SSPI + static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 }; +#endif + + /* 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 + */ + + size_t size; + unsigned char *buffer; + + size = Curl_base64_decode(header, &buffer); + if(!buffer) + return CURLE_OUT_OF_MEMORY; + + 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 = (unsigned long)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); + infof(data, "NTLM handshake failure (bad type-2 message)\n"); + return CURLE_REMOTE_ACCESS_DENIED; + } + + ntlm->flags = readint_le(&buffer[20]); + memcpy(ntlm->nonce, &buffer[24], 8); + + 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); + }); +#endif + free(buffer); + + return CURLE_OK; +} + +#ifndef USE_WINDOWS_SSPI + +#ifdef USE_SSLEAY +/* + * 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(const 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); +} + +#else /* defined(USE_SSLEAY) */ + +/* + * Turns a 56 bit key into the 64 bit, odd parity key. Used by GnuTLS and NSS. + */ +static void extend_key_56_to_64(const unsigned char *key_56, char *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); +} + +#if defined(USE_GNUTLS) + +/* + * Turns a 56 bit key into the 64 bit, odd parity key and sets the key. + */ +static void setup_des_key(const unsigned char *key_56, + gcry_cipher_hd_t *des) +{ + char key[8]; + extend_key_56_to_64(key_56, key); + gcry_cipher_setkey(*des, key, 8); +} + +#elif defined(USE_NSS) + +/* + * Expands a 56 bit key KEY_56 to 64 bit and encrypts 64 bit of data, using + * the expanded key. The caller is responsible for giving 64 bit of valid + * data is IN and (at least) 64 bit large buffer as OUT. + */ +static bool encrypt_des(const unsigned char *in, unsigned char *out, + const unsigned char *key_56) +{ + const CK_MECHANISM_TYPE mech = CKM_DES_ECB; /* DES cipher in ECB mode */ + PK11SlotInfo *slot = NULL; + char key[8]; /* expanded 64 bit key */ + SECItem key_item; + PK11SymKey *symkey = NULL; + SECItem *param = NULL; + PK11Context *ctx = NULL; + int out_len; /* not used, required by NSS */ + bool rv = FALSE; + + /* use internal slot for DES encryption (requires NSS to be initialized) */ + slot = PK11_GetInternalKeySlot(); + if(!slot) + return FALSE; + + /* expand the 56 bit key to 64 bit and wrap by NSS */ + extend_key_56_to_64(key_56, key); + key_item.data = (unsigned char *)key; + key_item.len = /* hard-wired */ 8; + symkey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_ENCRYPT, + &key_item, NULL); + if(!symkey) + goto fail; + + /* create DES encryption context */ + param = PK11_ParamFromIV(mech, /* no IV in ECB mode */ NULL); + if(!param) + goto fail; + ctx = PK11_CreateContextBySymKey(mech, CKA_ENCRYPT, symkey, param); + if(!ctx) + goto fail; + + /* perform the encryption */ + if(SECSuccess == PK11_CipherOp(ctx, out, &out_len, /* outbuflen */ 8, + (unsigned char *)in, /* inbuflen */ 8) + && SECSuccess == PK11_Finalize(ctx)) + rv = /* all OK */ TRUE; + +fail: + /* cleanup */ + if(ctx) + PK11_DestroyContext(ctx, PR_TRUE); + if(symkey) + PK11_FreeSymKey(symkey); + if(param) + SECITEM_FreeItem(param, PR_TRUE); + PK11_FreeSlot(slot); + return rv; +} + +#endif /* defined(USE_NSS) */ + +#endif /* defined(USE_SSLEAY) */ + + /* + * 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(const unsigned char *keys, + const unsigned char *plaintext, + unsigned char *results) +{ +#ifdef USE_SSLEAY + 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); +#elif defined(USE_GNUTLS) + gcry_cipher_hd_t des; + + gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); + setup_des_key(keys, &des); + gcry_cipher_encrypt(des, results, 8, plaintext, 8); + gcry_cipher_close(des); + + gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); + setup_des_key(keys + 7, &des); + gcry_cipher_encrypt(des, results + 8, 8, plaintext, 8); + gcry_cipher_close(des); + + gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); + setup_des_key(keys + 14, &des); + gcry_cipher_encrypt(des, results + 16, 8, plaintext, 8); + gcry_cipher_close(des); +#elif defined(USE_NSS) + encrypt_des(plaintext, results, keys); + encrypt_des(plaintext, results + 8, keys + 7); + encrypt_des(plaintext, results + 16, keys + 14); +#endif +} + +/* + * Set up lanmanager hashed password + */ +static void mk_lm_hash(struct SessionHandle *data, + const char *password, + unsigned char *lmbuffer /* 21 bytes */) +{ + CURLcode res; + unsigned char pw[14]; + static const unsigned char magic[] = { + 0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */ + }; + size_t len = CURLMIN(strlen(password), 14); + + Curl_strntoupper((char *)pw, password, len); + memset(&pw[len], 0, 14 - len); + + /* + * The LanManager hashed password needs to be created using the + * password in the network encoding not the host encoding. + */ + res = Curl_convert_to_network(data, (char *)pw, 14); + if(res) + return; + + { + /* Create LanManager hashed password. */ + +#ifdef USE_SSLEAY + 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); +#elif defined(USE_GNUTLS) + gcry_cipher_hd_t des; + + gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); + setup_des_key(pw, &des); + gcry_cipher_encrypt(des, lmbuffer, 8, magic, 8); + gcry_cipher_close(des); + + gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); + setup_des_key(pw + 7, &des); + gcry_cipher_encrypt(des, lmbuffer + 8, 8, magic, 8); + gcry_cipher_close(des); +#elif defined(USE_NSS) + encrypt_des(magic, lmbuffer, pw); + encrypt_des(magic, lmbuffer + 8, pw + 7); +#endif + + memset(lmbuffer + 16, 0, 21 - 16); + } +} + +#if USE_NTRESPONSES +static void ascii_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 CURLcode mk_nt_hash(struct SessionHandle *data, + const char *password, + unsigned char *ntbuffer /* 21 bytes */) +{ + size_t len = strlen(password); + unsigned char *pw = malloc(len * 2); + CURLcode result; + if(!pw) + return CURLE_OUT_OF_MEMORY; + + ascii_to_unicode_le(pw, password, len); + + /* + * The NT hashed password needs to be created using the password in the + * network encoding not the host encoding. + */ + result = Curl_convert_to_network(data, (char *)pw, len * 2); + if(result) + return result; + + { + /* Create NT hashed password. */ +#ifdef USE_SSLEAY + MD4_CTX MD4pw; + MD4_Init(&MD4pw); + MD4_Update(&MD4pw, pw, 2 * len); + MD4_Final(ntbuffer, &MD4pw); +#elif defined(USE_GNUTLS) + gcry_md_hd_t MD4pw; + gcry_md_open(&MD4pw, GCRY_MD_MD4, 0); + gcry_md_write(MD4pw, pw, 2 * len); + memcpy (ntbuffer, gcry_md_read (MD4pw, 0), MD4_DIGEST_LENGTH); + gcry_md_close(MD4pw); +#elif defined(USE_NSS) + Curl_md4it(ntbuffer, pw, 2 * len); +#endif + + memset(ntbuffer + 16, 0, 21 - 16); + } + + free(pw); + + return CURLE_OK; +} +#endif + +#endif + +#ifdef USE_WINDOWS_SSPI +void Curl_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 + +#ifndef USE_WINDOWS_SSPI +/* 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'; + } +} +#endif + + +CURLcode Curl_ntlm_create_type1_message(const char *userp, + const char *passwdp, + struct ntlmdata *ntlm, + unsigned char *ntlmbuf, + size_t *sizep) +{ + size_t size; + + /* 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 + */ + +#ifdef USE_WINDOWS_SSPI + + SecBuffer buf; + SecBufferDesc desc; + SECURITY_STATUS status; + ULONG attrs; + const char *dest = ""; + const char *user; + const char *domain = ""; + size_t userlen = 0; + size_t domlen = 0; + size_t passwdlen = 0; + TimeStamp tsDummy; /* For Windows 9x compatibility of SSPI calls */ + + Curl_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) + userlen = strlen(user); + + if(passwdp) + passwdlen = strlen(passwdp); + + if(userlen > 0) { + /* 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 = (unsigned long)userlen; + if((ntlm->identity.Password = (unsigned char *)strdup(passwdp)) == NULL) + return CURLE_OUT_OF_MEMORY; + + ntlm->identity.PasswordLength = (unsigned long)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 = (unsigned long)domlen; + ntlm->identity.Flags = SEC_WINNT_AUTH_IDENTITY_ANSI; + } + else + ntlm->p_identity = NULL; + + status = s_pSecFn->AcquireCredentialsHandleA(NULL, (void *)"NTLM", + SECPKG_CRED_OUTBOUND, NULL, + ntlm->p_identity, NULL, NULL, + &ntlm->handle, &tsDummy); + if(status != SEC_E_OK) + return CURLE_OUT_OF_MEMORY; + + desc.ulVersion = SECBUFFER_VERSION; + desc.cBuffers = 1; + desc.pBuffers = &buf; + buf.cbBuffer = NTLM_BUFSIZE; + buf.BufferType = SECBUFFER_TOKEN; + buf.pvBuffer = ntlmbuf; + + status = s_pSecFn->InitializeSecurityContextA(&ntlm->handle, NULL, + (void *)dest, + 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 + + 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 */ +#if 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; + +#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); + ntlm_print_flags(stderr, + NTLMFLAG_NEGOTIATE_OEM | + NTLMFLAG_REQUEST_TARGET | + NTLMFLAG_NEGOTIATE_NTLM_KEY | + NTLM2FLAG | + NTLMFLAG_NEGOTIATE_ALWAYS_SIGN); + fprintf(stderr, "\n****\n"); + }); + + /* Return the message size */ + *sizep = size; + + return CURLE_OK; +} + +CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data, + const char *userp, + const char *passwdp, + struct ntlmdata *ntlm, + unsigned char *ntlmbuf, + size_t *sizep) +{ + /* 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 + */ + + + size_t size; + +#ifdef USE_WINDOWS_SSPI + const char *dest = ""; + SecBuffer type_2; + SecBuffer type_3; + SecBufferDesc type_2_desc; + SecBufferDesc type_3_desc; + SECURITY_STATUS status; + ULONG attrs; + TimeStamp tsDummy; /* For Windows 9x compatibility of SSPI 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 = NTLM_BUFSIZE; + + status = s_pSecFn->InitializeSecurityContextA(&ntlm->handle, + &ntlm->c_handle, + (void *)dest, + 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; + + Curl_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 + 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; + CURLcode res; + + user = strchr(userp, '\\'); + if(!user) + user = strchr(userp, '/'); + + if(user) { + domain = userp; + domlen = (user - domain); + user++; + } + else + user = userp; + + if(user) + userlen = strlen(user); + + if(Curl_gethostname(host, HOSTNAME_MAX)) { + infof(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(unicode) { + domlen = domlen * 2; + userlen = userlen * 2; + hostlen = hostlen * 2; + } + +#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]; + unsigned char entropy[8]; + + /* Need to create 8 bytes random data */ +#ifdef USE_SSLEAY + MD5_CTX MD5pw; + Curl_ossl_seed(data); /* Initiate the seed if not already done */ + RAND_bytes(entropy, 8); +#elif defined(USE_GNUTLS) + gcry_md_hd_t MD5pw; + Curl_gtls_seed(data); /* Initiate the seed if not already done */ + gcry_randomize(entropy, 8, GCRY_STRONG_RANDOM); +#elif defined(USE_NSS) + PK11Context *MD5pw; + unsigned int outlen; + Curl_nss_seed(data); /* Initiate the seed if not already done */ + PK11_GenerateRandom(entropy, 8); +#endif + + /* 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); + +#ifdef USE_SSLEAY + MD5_Init(&MD5pw); + MD5_Update(&MD5pw, tmp, 16); + MD5_Final(md5sum, &MD5pw); +#elif defined(USE_GNUTLS) + gcry_md_open(&MD5pw, GCRY_MD_MD5, 0); + gcry_md_write(MD5pw, tmp, MD5_DIGEST_LENGTH); + memcpy(md5sum, gcry_md_read (MD5pw, 0), MD5_DIGEST_LENGTH); + gcry_md_close(MD5pw); +#elif defined(USE_NSS) + MD5pw = PK11_CreateDigestContext(SEC_OID_MD5); + PK11_DigestOp(MD5pw, tmp, 16); + PK11_DigestFinal(MD5pw, md5sum, &outlen, MD5_DIGEST_LENGTH); + PK11_DestroyContext(MD5pw, PR_TRUE); +#endif + + /* We shall only use the first 8 bytes of md5sum, + but the des code in lm_resp only encrypt the first 8 bytes */ + if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY) + return CURLE_OUT_OF_MEMORY; + 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 + if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY) + return CURLE_OUT_OF_MEMORY; + lm_resp(ntbuffer, &ntlm->nonce[0], ntresp); +#endif + + mk_lm_hash(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 */ + } + + 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, 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(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)); + + 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 - 0x18)) { + DEBUGASSERT(size == (size_t)ntrespoff); + memcpy(&ntlmbuf[size], ntresp, 0x18); + size += 0x18; + } + + DEBUG_OUT({ + fprintf(stderr, "\n ntresp="); + ntlm_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); + 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 */ + res = Curl_convert_to_network(data, (char *)&ntlmbuf[domoff], + size - domoff); + if(res) + return CURLE_CONV_FAILED; + +#endif + + /* Return the message size */ + *sizep = size; + + return CURLE_OK; +} + +#endif /* USE_NTLM */ +#endif /* !CURL_DISABLE_HTTP */ diff --git a/lib/curl_ntlm.h b/lib/curl_ntlm.h index 8c5793d50..24021033a 100644 --- a/lib/curl_ntlm.h +++ b/lib/curl_ntlm.h @@ -24,6 +24,31 @@ #ifdef USE_NTLM +/* This is to generate a ntlm type-1 message */ +CURLcode Curl_ntlm_create_type1_message(const char *userp, + const char *passwdp, + struct ntlmdata *ntlm, + unsigned char *ntlmbuf, + size_t *size); + +/* This is to generate a ntlm type-3 message */ +CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data, + const char *userp, + const char *passwdp, + struct ntlmdata *ntlm, + unsigned char *ntlmbuf, + size_t *size); + +/* This is to decode a ntlm type-2 message */ +CURLcode Curl_ntlm_decode_type2_message(struct SessionHandle *data, + const char* header, + struct ntlmdata* ntlm); + +/* This is to clean up the ntlm data structure */ +#ifdef USE_WINDOWS_SSPI +void Curl_ntlm_sspi_cleanup(struct ntlmdata *ntlm); +#endif + /* NTLM buffer fixed size, large enough for long user + host + domain */ #define NTLM_BUFSIZE 1024 diff --git a/lib/http_ntlm.c b/lib/http_ntlm.c index 98d9ad890..756ff527f 100644 --- a/lib/http_ntlm.c +++ b/lib/http_ntlm.c @@ -62,209 +62,12 @@ #define _MPRINTF_REPLACE /* use our functions only */ #include <curl/mprintf.h> -#ifdef USE_SSLEAY -#include "ssluse.h" -# ifdef USE_OPENSSL -# include <openssl/des.h> -# ifndef OPENSSL_NO_MD4 -# include <openssl/md4.h> -# endif -# include <openssl/md5.h> -# include <openssl/ssl.h> -# include <openssl/rand.h> -# else -# include <des.h> -# ifndef OPENSSL_NO_MD4 -# include <md4.h> -# endif -# include <md5.h> -# include <ssl.h> -# include <rand.h> -# endif - -#ifndef OPENSSL_VERSION_NUMBER -#error "OPENSSL_VERSION_NUMBER not defined" -#endif - -#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 - -#ifdef OPENSSL_NO_MD4 -/* This requires MD4, but OpenSSL was compiled without it */ -#define USE_NTRESPONSES 0 -#define USE_NTLM2SESSION 0 -#endif - -#elif defined(USE_GNUTLS) - -#include "gtls.h" -#include <gcrypt.h> - -#define MD5_DIGEST_LENGTH 16 -#define MD4_DIGEST_LENGTH 16 - -#elif defined(USE_NSS) - -#include "curl_md4.h" -#include "nssg.h" -#include <nss.h> -#include <pk11pub.h> -#include <hasht.h> -#define MD5_DIGEST_LENGTH MD5_LENGTH - -#elif defined(USE_WINDOWS_SSPI) - -#include "curl_sspi.h" - -#else -# error "Can't compile NTLM support without a crypto library." -#endif - -/* The last #include file should be: */ -#include "memdebug.h" - -/* Hostname buffer size */ -#define HOSTNAME_MAX 1024 - -/* "NTLMSSP" signature is always in ASCII regardless of the platform */ -#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50" - -#ifndef USE_NTRESPONSES -/* 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 -#endif - -#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; - fprintf(stderr, "0x"); - while(len-- > 0) - fprintf(stderr, "%02.2x", (unsigned int)*p++); -} #else # define DEBUG_OUT(x) #endif -#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. - * Argument is a pointer to a 4 byte buffer. - */ -static unsigned int readint_le(unsigned char *buf) -{ - return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) | - ((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24); -} -#endif - -/* - NTLM message structure notes: - - A 'short' is a little-endian, 16-bit unsigned value. - - A 'long' is 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. -*/ - CURLcode Curl_input_ntlm(struct connectdata *conn, bool proxy, /* if proxy or not */ const char *header) /* rest of the www-authenticate: @@ -272,9 +75,6 @@ CURLcode Curl_input_ntlm(struct connectdata *conn, { /* point to the correct struct with this */ struct ntlmdata *ntlm; -#ifndef USE_WINDOWS_SSPI - static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 }; -#endif CURLcode result = CURLE_OK; #ifdef USE_NSS @@ -297,62 +97,10 @@ CURLcode Curl_input_ntlm(struct connectdata *conn, if(*header) { /* We got a type-2 message */ - /* 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 - */ - size_t size; - unsigned char *buffer; - size = Curl_base64_decode(header, &buffer); - if(!buffer) - return CURLE_OUT_OF_MEMORY; - - 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 = (unsigned long)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); - infof(conn->data, "NTLM handshake failure (bad type-2 message)\n"); - return CURLE_REMOTE_ACCESS_DENIED; - } - ntlm->flags = readint_le(&buffer[20]); - memcpy(ntlm->nonce, &buffer[24], 8); - - 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); - }); -#endif - free(buffer); + result = Curl_ntlm_decode_type2_message(conn->data, header, ntlm); + if(CURLE_OK != result) + return result; } else { if(ntlm->state >= NTLMSTATE_TYPE1) { @@ -367,328 +115,6 @@ CURLcode Curl_input_ntlm(struct connectdata *conn, return result; } -#ifndef USE_WINDOWS_SSPI - -#ifdef USE_SSLEAY -/* - * 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(const 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); -} - -#else /* defined(USE_SSLEAY) */ - -/* - * Turns a 56 bit key into the 64 bit, odd parity key. Used by GnuTLS and NSS. - */ -static void extend_key_56_to_64(const unsigned char *key_56, char *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); -} - -#if defined(USE_GNUTLS) - -/* - * Turns a 56 bit key into the 64 bit, odd parity key and sets the key. - */ -static void setup_des_key(const unsigned char *key_56, - gcry_cipher_hd_t *des) -{ - char key[8]; - extend_key_56_to_64(key_56, key); - gcry_cipher_setkey(*des, key, 8); -} - -#elif defined(USE_NSS) - -/* - * Expands a 56 bit key KEY_56 to 64 bit and encrypts 64 bit of data, using - * the expanded key. The caller is responsible for giving 64 bit of valid - * data is IN and (at least) 64 bit large buffer as OUT. - */ -static bool encrypt_des(const unsigned char *in, unsigned char *out, - const unsigned char *key_56) -{ - const CK_MECHANISM_TYPE mech = CKM_DES_ECB; /* DES cipher in ECB mode */ - PK11SlotInfo *slot = NULL; - char key[8]; /* expanded 64 bit key */ - SECItem key_item; - PK11SymKey *symkey = NULL; - SECItem *param = NULL; - PK11Context *ctx = NULL; - int out_len; /* not used, required by NSS */ - bool rv = FALSE; - - /* use internal slot for DES encryption (requires NSS to be initialized) */ - slot = PK11_GetInternalKeySlot(); - if(!slot) - return FALSE; - - /* expand the 56 bit key to 64 bit and wrap by NSS */ - extend_key_56_to_64(key_56, key); - key_item.data = (unsigned char *)key; - key_item.len = /* hard-wired */ 8; - symkey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_ENCRYPT, - &key_item, NULL); - if(!symkey) - goto fail; - - /* create DES encryption context */ - param = PK11_ParamFromIV(mech, /* no IV in ECB mode */ NULL); - if(!param) - goto fail; - ctx = PK11_CreateContextBySymKey(mech, CKA_ENCRYPT, symkey, param); - if(!ctx) - goto fail; - - /* perform the encryption */ - if(SECSuccess == PK11_CipherOp(ctx, out, &out_len, /* outbuflen */ 8, - (unsigned char *)in, /* inbuflen */ 8) - && SECSuccess == PK11_Finalize(ctx)) - rv = /* all OK */ TRUE; - -fail: - /* cleanup */ - if(ctx) - PK11_DestroyContext(ctx, PR_TRUE); - if(symkey) - PK11_FreeSymKey(symkey); - if(param) - SECITEM_FreeItem(param, PR_TRUE); - PK11_FreeSlot(slot); - return rv; -} - -#endif /* defined(USE_NSS) */ - -#endif /* defined(USE_SSLEAY) */ - - /* - * 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(const unsigned char *keys, - const unsigned char *plaintext, - unsigned char *results) -{ -#ifdef USE_SSLEAY - 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); -#elif defined(USE_GNUTLS) - gcry_cipher_hd_t des; - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(keys, &des); - gcry_cipher_encrypt(des, results, 8, plaintext, 8); - gcry_cipher_close(des); - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(keys + 7, &des); - gcry_cipher_encrypt(des, results + 8, 8, plaintext, 8); - gcry_cipher_close(des); - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(keys + 14, &des); - gcry_cipher_encrypt(des, results + 16, 8, plaintext, 8); - gcry_cipher_close(des); -#elif defined(USE_NSS) - encrypt_des(plaintext, results, keys); - encrypt_des(plaintext, results + 8, keys + 7); - encrypt_des(plaintext, results + 16, keys + 14); -#endif -} - -/* - * Set up lanmanager hashed password - */ -static void mk_lm_hash(struct SessionHandle *data, - const char *password, - unsigned char *lmbuffer /* 21 bytes */) -{ - CURLcode res; - unsigned char pw[14]; - static const unsigned char magic[] = { - 0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */ - }; - size_t len = CURLMIN(strlen(password), 14); - - Curl_strntoupper((char *)pw, password, len); - memset(&pw[len], 0, 14 - len); - - /* - * The LanManager hashed password needs to be created using the - * password in the network encoding not the host encoding. - */ - res = Curl_convert_to_network(data, (char *)pw, 14); - if(res) - return; - - { - /* Create LanManager hashed password. */ - -#ifdef USE_SSLEAY - 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); -#elif defined(USE_GNUTLS) - gcry_cipher_hd_t des; - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(pw, &des); - gcry_cipher_encrypt(des, lmbuffer, 8, magic, 8); - gcry_cipher_close(des); - - gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0); - setup_des_key(pw + 7, &des); - gcry_cipher_encrypt(des, lmbuffer + 8, 8, magic, 8); - gcry_cipher_close(des); -#elif defined(USE_NSS) - encrypt_des(magic, lmbuffer, pw); - encrypt_des(magic, lmbuffer + 8, pw + 7); -#endif - - memset(lmbuffer + 16, 0, 21 - 16); - } -} - -#if USE_NTRESPONSES -static void ascii_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 CURLcode mk_nt_hash(struct SessionHandle *data, - const char *password, - unsigned char *ntbuffer /* 21 bytes */) -{ - size_t len = strlen(password); - unsigned char *pw = malloc(len * 2); - CURLcode result; - if(!pw) - return CURLE_OUT_OF_MEMORY; - - ascii_to_unicode_le(pw, password, len); - - /* - * The NT hashed password needs to be created using the password in the - * network encoding not the host encoding. - */ - result = Curl_convert_to_network(data, (char *)pw, len * 2); - if(result) - return result; - - { - /* Create NT hashed password. */ -#ifdef USE_SSLEAY - MD4_CTX MD4pw; - MD4_Init(&MD4pw); - MD4_Update(&MD4pw, pw, 2 * len); - MD4_Final(ntbuffer, &MD4pw); -#elif defined(USE_GNUTLS) - gcry_md_hd_t MD4pw; - gcry_md_open(&MD4pw, GCRY_MD_MD4, 0); - gcry_md_write(MD4pw, pw, 2 * len); - memcpy (ntbuffer, gcry_md_read (MD4pw, 0), MD4_DIGEST_LENGTH); - gcry_md_close(MD4pw); -#elif defined(USE_NSS) - Curl_md4it(ntbuffer, pw, 2 * len); -#endif - - memset(ntbuffer + 16, 0, 21 - 16); - } - - free(pw); - - return CURLE_OK; -} -#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 - -#ifndef USE_WINDOWS_SSPI -/* 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'; - } -} -#endif - #ifdef WINBIND_NTLM_AUTH_ENABLED static void sso_ntlm_close(struct connectdata *conn) { @@ -1021,6 +447,7 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, size_t size; char *base64 = NULL; unsigned char ntlmbuf[NTLM_BUFSIZE]; + CURLcode res; /* 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 */ @@ -1083,201 +510,22 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, default: /* for the weird cases we (re)start here */ /* Create a type-1 message */ - /* 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 - */ -#ifdef USE_WINDOWS_SSPI - { - SecBuffer buf; - SecBufferDesc desc; - SECURITY_STATUS status; - ULONG attrs; - const char *dest = ""; - const char *user; - const char *domain = ""; - size_t userlen = 0; - size_t domlen = 0; - size_t passwdlen = 0; - TimeStamp tsDummy; /* For Windows 9x compatibility of SSPI 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) - userlen = strlen(user); - - if(passwdp) - passwdlen = strlen(passwdp); - - if(userlen > 0) { - /* 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 = (unsigned long)userlen; - if((ntlm->identity.Password = (unsigned char *)strdup(passwdp)) == NULL) - return CURLE_OUT_OF_MEMORY; - - ntlm->identity.PasswordLength = (unsigned long)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 = (unsigned long)domlen; - ntlm->identity.Flags = SEC_WINNT_AUTH_IDENTITY_ANSI; - } - else - ntlm->p_identity = NULL; + res = Curl_ntlm_create_type1_message(userp, passwdp, + ntlm, ntlmbuf, &size); - status = s_pSecFn->AcquireCredentialsHandleA(NULL, (void *)"NTLM", - SECPKG_CRED_OUTBOUND, NULL, - ntlm->p_identity, NULL, NULL, - &ntlm->handle, &tsDummy); - if(status != SEC_E_OK) - return CURLE_OUT_OF_MEMORY; + if(CURLE_OK == res) { + /* now size is the size of the base64 encoded package size */ + size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); - desc.ulVersion = SECBUFFER_VERSION; - desc.cBuffers = 1; - desc.pBuffers = &buf; - buf.cbBuffer = NTLM_BUFSIZE; - buf.BufferType = SECBUFFER_TOKEN; - buf.pvBuffer = ntlmbuf; - - status = s_pSecFn->InitializeSecurityContextA(&ntlm->handle, NULL, - (void *)dest, - 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 - { - 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 */ - -#if 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; - } -#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); - ntlm_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); + 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 */ @@ -1286,385 +534,29 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, case NTLMSTATE_TYPE2: /* We already received the type-2 message, create a type-3 message */ - /* 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 - */ - - { -#ifdef USE_WINDOWS_SSPI - const char *dest = ""; - SecBuffer type_2; - SecBuffer type_3; - SecBufferDesc type_2_desc; - SecBufferDesc type_3_desc; - SECURITY_STATUS status; - ULONG attrs; - TimeStamp tsDummy; /* For Windows 9x compatibility of SSPI 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 = NTLM_BUFSIZE; - - status = s_pSecFn->InitializeSecurityContextA(&ntlm->handle, - &ntlm->c_handle, - (void *)dest, - 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 - 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; - CURLcode res; - - user = strchr(userp, '\\'); - if(!user) - user = strchr(userp, '/'); - - if(user) { - domain = userp; - domlen = (user - domain); - user++; - } - else - user = userp; + res = Curl_ntlm_create_type3_message(conn->data, userp, passwdp, + ntlm, ntlmbuf, &size); - if(user) - userlen = strlen(user); + if(CURLE_OK == res) { + /* convert the binary blob into base64 */ + size = Curl_base64_encode(NULL, (char *)ntlmbuf, size, &base64); - if(Curl_gethostname(host, HOSTNAME_MAX)) { - infof(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(unicode) { - domlen = domlen * 2; - userlen = userlen * 2; - hostlen = hostlen * 2; - } - -#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]; - unsigned char entropy[8]; - - /* Need to create 8 bytes random data */ -#ifdef USE_SSLEAY - MD5_CTX MD5pw; - Curl_ossl_seed(data); /* Initiate the seed if not already done */ - RAND_bytes(entropy, 8); -#elif defined(USE_GNUTLS) - gcry_md_hd_t MD5pw; - Curl_gtls_seed(data); /* Initiate the seed if not already done */ - gcry_randomize(entropy, 8, GCRY_STRONG_RANDOM); -#elif defined(USE_NSS) - PK11Context *MD5pw; - unsigned int outlen; - Curl_nss_seed(data); /* Initiate the seed if not already done */ - PK11_GenerateRandom(entropy, 8); -#endif - - /* 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); - -#ifdef USE_SSLEAY - MD5_Init(&MD5pw); - MD5_Update(&MD5pw, tmp, 16); - MD5_Final(md5sum, &MD5pw); -#elif defined(USE_GNUTLS) - gcry_md_open(&MD5pw, GCRY_MD_MD5, 0); - gcry_md_write(MD5pw, tmp, MD5_DIGEST_LENGTH); - memcpy(md5sum, gcry_md_read (MD5pw, 0), MD5_DIGEST_LENGTH); - gcry_md_close(MD5pw); -#elif defined(USE_NSS) - MD5pw = PK11_CreateDigestContext(SEC_OID_MD5); - PK11_DigestOp(MD5pw, tmp, 16); - PK11_DigestFinal(MD5pw, md5sum, &outlen, MD5_DIGEST_LENGTH); - PK11_DestroyContext(MD5pw, PR_TRUE); -#endif - - /* We shall only use the first 8 bytes of md5sum, - but the des code in lm_resp only encrypt the first 8 bytes */ - if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY) - return CURLE_OUT_OF_MEMORY; - 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 - if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY) - return CURLE_OUT_OF_MEMORY; - lm_resp(ntbuffer, &ntlm->nonce[0], ntresp); -#endif - - mk_lm_hash(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 */ - } - - 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, 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(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)); - - 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 - 0x18)) { - DEBUGASSERT(size == (size_t)ntrespoff); - memcpy(&ntlmbuf[size], ntresp, 0x18); - size += 0x18; - } - - DEBUG_OUT({ - fprintf(stderr, "\n ntresp="); - ntlm_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); - 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 */ - res = Curl_convert_to_network(data, (char *)&ntlmbuf[domoff], - size - domoff); - if(res) - return CURLE_CONV_FAILED; - -#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); + 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: @@ -1684,8 +576,8 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, void Curl_http_ntlm_cleanup(struct connectdata *conn) { #ifdef USE_WINDOWS_SSPI - ntlm_sspi_cleanup(&conn->ntlm); - ntlm_sspi_cleanup(&conn->proxyntlm); + Curl_ntlm_sspi_cleanup(&conn->ntlm); + Curl_ntlm_sspi_cleanup(&conn->proxyntlm); #elif defined(WINBIND_NTLM_AUTH_ENABLED) sso_ntlm_close(conn); #else |