* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2005, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2006, 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
http://davenport.sourceforge.net/ntlm.html
http://www.innovation.ch/java/ntlm.html
+ Another implementation:
+ http://lxr.mozilla.org/mozilla/source/security/manager/ssl/src/nsNTLMAuthModule.cpp
+
*/
#ifndef CURL_DISABLE_HTTP
#ifdef USE_NTLM
+#define DEBUG_ME 0
+
/* -- WIN32 approved -- */
#include <stdio.h>
#include <string.h>
/* Define this to make the type-3 message include the NT response message */
#define USE_NTRESPONSES 1
+/* this function converts from the little endian format used in the incoming
+ package to whatever endian format we're using natively */
+static unsigned int readint_le(unsigned char *buf) /* must point to a
+ 4 bytes buffer*/
+{
+ return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) |
+ ((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24);
+}
+
+#if DEBUG_ME
+# define DEBUG_OUT(x) x
+static void print_flags(FILE *handle, unsigned long flags)
+{
+ if(flags & NTLMFLAG_NEGOTIATE_UNICODE)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_UNICODE ");
+ if(flags & NTLMFLAG_NEGOTIATE_OEM)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_OEM ");
+ if(flags & NTLMFLAG_REQUEST_TARGET)
+ fprintf(handle, "NTLMFLAG_REQUEST_TARGET ");
+ if(flags & (1<<3))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_3 ");
+ if(flags & NTLMFLAG_NEGOTIATE_SIGN)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_SIGN ");
+ if(flags & NTLMFLAG_NEGOTIATE_SEAL)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_SEAL ");
+ if(flags & NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE ");
+ if(flags & NTLMFLAG_NEGOTIATE_LM_KEY)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_LM_KEY ");
+ if(flags & NTLMFLAG_NEGOTIATE_NETWARE)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_NETWARE ");
+ if(flags & NTLMFLAG_NEGOTIATE_NTLM_KEY)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM_KEY ");
+ if(flags & (1<<10))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_10 ");
+ if(flags & (1<<11))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_11 ");
+ if(flags & NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED ");
+ if(flags & NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED ");
+ if(flags & NTLMFLAG_NEGOTIATE_LOCAL_CALL)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_LOCAL_CALL ");
+ if(flags & NTLMFLAG_NEGOTIATE_ALWAYS_SIGN)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_ALWAYS_SIGN ");
+ if(flags & NTLMFLAG_TARGET_TYPE_DOMAIN)
+ fprintf(handle, "NTLMFLAG_TARGET_TYPE_DOMAIN ");
+ if(flags & NTLMFLAG_TARGET_TYPE_SERVER)
+ fprintf(handle, "NTLMFLAG_TARGET_TYPE_SERVER ");
+ if(flags & NTLMFLAG_TARGET_TYPE_SHARE)
+ fprintf(handle, "NTLMFLAG_TARGET_TYPE_SHARE ");
+ if(flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_NTLM2_KEY ");
+ if(flags & NTLMFLAG_REQUEST_INIT_RESPONSE)
+ fprintf(handle, "NTLMFLAG_REQUEST_INIT_RESPONSE ");
+ if(flags & NTLMFLAG_REQUEST_ACCEPT_RESPONSE)
+ fprintf(handle, "NTLMFLAG_REQUEST_ACCEPT_RESPONSE ");
+ if(flags & NTLMFLAG_REQUEST_NONNT_SESSION_KEY)
+ fprintf(handle, "NTLMFLAG_REQUEST_NONNT_SESSION_KEY ");
+ if(flags & NTLMFLAG_NEGOTIATE_TARGET_INFO)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_TARGET_INFO ");
+ if(flags & (1<<24))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_24 ");
+ if(flags & (1<<25))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_25 ");
+ if(flags & (1<<26))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_26 ");
+ if(flags & (1<<27))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_27 ");
+ if(flags & (1<<28))
+ fprintf(handle, "NTLMFLAG_UNKNOWN_28 ");
+ if(flags & NTLMFLAG_NEGOTIATE_128)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_128 ");
+ if(flags & NTLMFLAG_NEGOTIATE_KEY_EXCHANGE)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_KEY_EXCHANGE ");
+ if(flags & NTLMFLAG_NEGOTIATE_56)
+ fprintf(handle, "NTLMFLAG_NEGOTIATE_56 ");
+}
+
+static void print_hex(FILE *handle, const char *buf, size_t len)
+{
+ const char *p = buf;
+ fprintf(stderr, "0x");
+ while (len-- > 0)
+ fprintf(stderr, "%02.2x", (unsigned int)*p++);
+}
+#else
+# define DEBUG_OUT(x)
+#endif
+
/*
(*) = A "security buffer" is a triplet consisting of two shorts and one
long:
{
/* point to the correct struct with this */
struct ntlmdata *ntlm;
+#ifndef USE_WINDOWS_SSPI
+ static const char type2_marker[] = { 0x02, 0x00, 0x00, 0x00 };
+#endif
ntlm = proxy?&conn->proxyntlm:&conn->ntlm;
ntlm->state = NTLMSTATE_TYPE2; /* we got a type-2 */
#ifdef USE_WINDOWS_SSPI
- if ((ntlm->type_2 = malloc(size+1)) == NULL) {
+ ntlm->type_2 = malloc(size+1);
+ if (ntlm->type_2 == NULL) {
free(buffer);
return CURLE_OUT_OF_MEMORY;
}
ntlm->n_type_2 = size;
memcpy(ntlm->type_2, buffer, size);
#else
- if(size >= 48)
- /* the nonce of interest is index [24 .. 31], 8 bytes */
- memcpy(ntlm->nonce, &buffer[24], 8);
- /* FIX: add an else here! */
+ ntlm->flags = 0;
- /* at index decimal 20, there's a 32bit NTLM flag field */
+ if((size < 32) ||
+ (memcmp(buffer, "NTLMSSP", 8) != 0) ||
+ (memcmp(buffer+8, type2_marker, sizeof(type2_marker)) != 0)) {
+ /* This was not a good enough type-2 message */
+ free(buffer);
+ return CURLNTLM_BAD;
+ }
+
+ ntlm->flags = readint_le(&buffer[20]);
+ memcpy(ntlm->nonce, &buffer[24], 8);
+
+ DEBUG_OUT({
+ fprintf(stderr, "**** TYPE2 header flags=0x%08.8lx ", ntlm->flags);
+ print_flags(stderr, ntlm->flags);
+ fprintf(stderr, "\n nonce=");
+ print_hex(stderr, ntlm->nonce, 8);
+ fprintf(stderr, "\n****\n");
+ });
free(buffer);
#endif
* 8 byte plaintext is encrypted with each key and the resulting 24
* bytes are stored in the results array.
*/
-static void calc_resp(unsigned char *keys,
+static void lm_resp(unsigned char *keys,
unsigned char *plaintext,
unsigned char *results)
{
DESKEY(ks), DES_ENCRYPT);
}
+
/*
- * Set up lanmanager and nt hashed passwords
+ * Set up lanmanager hashed password
*/
-static void mkhash(char *password,
- unsigned char *nonce, /* 8 bytes */
- unsigned char *lmresp /* must fit 0x18 bytes */
-#ifdef USE_NTRESPONSES
- , unsigned char *ntresp /* must fit 0x18 bytes */
-#endif
- )
+static void mk_lm_hash(char *password, unsigned char *lmbuffer /* 21 bytes */)
{
- /* 21 bytes fits 3 7-bytes chunks, as we use 56 bit (7 bytes) as DES input,
- and we add three different ones, see the calc_resp() function */
- unsigned char lmbuffer[21];
-#ifdef USE_NTRESPONSES
- unsigned char ntbuffer[21];
-#endif
- unsigned char *pw;
+ unsigned char pw[14];
static const unsigned char magic[] = {
- 0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25
+ 0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */
};
unsigned int i;
size_t len = strlen(password);
- /* make it fit at least 14 bytes */
- pw = malloc(len<7?14:len*2);
- if(!pw)
- return; /* this will lead to a badly generated package */
-
if (len > 14)
len = 14;
pw[i] = 0;
{
- /* create LanManager hashed password */
+ /* Create LanManager hashed password. */
+
DES_key_schedule ks;
setup_des_key(pw, DESKEY(ks));
DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)(lmbuffer+8),
DESKEY(ks), DES_ENCRYPT);
- memset(lmbuffer+16, 0, sizeof(lmbuffer)-16);
+ memset(lmbuffer + 16, 0, 21 - 16);
+ }
}
- /* create LM responses */
- calc_resp(lmbuffer, nonce, lmresp);
-#ifdef USE_NTRESPONSES
- {
- /* create NT hashed password */
- MD4_CTX MD4;
+#if USE_NTRESPONSES
+static void utf8_to_unicode_le(unsigned char *dest, const char *src,
+ size_t srclen)
+{
+ size_t i;
+ for (i=0; i<srclen; i++) {
+ dest[2*i] = (unsigned char)src[i];
+ dest[2*i+1] = '\0';
+ }
+}
- len = strlen(password);
+/*
+ * Set up nt hashed passwords
+ */
+static void mk_nt_hash(char *password, unsigned char *ntbuffer /* 21 bytes */)
+{
+ size_t len = strlen(password);
+ unsigned char *pw = malloc(len*2);
- for (i=0; i<len; i++) {
- pw[2*i] = password[i];
- pw[2*i+1] = 0;
- }
+ utf8_to_unicode_le(pw, password, len);
+
+ {
+ /* Create NT hashed password. */
+ MD4_CTX MD4;
MD4_Init(&MD4);
MD4_Update(&MD4, pw, 2*len);
MD4_Final(ntbuffer, &MD4);
- memset(ntbuffer+16, 0, sizeof(ntbuffer)-16);
+ memset(ntbuffer + 16, 0, 21 - 16);
}
- calc_resp(ntbuffer, nonce, ntresp);
-#endif
-
free(pw);
}
+#endif
+
#endif
#endif
-#define SHORTPAIR(x) ((x) & 0xff), ((x) >> 8)
+#define SHORTPAIR(x) ((x) & 0xff), (((x) >> 8) & 0xff)
#define LONGQUARTET(x) ((x) & 0xff), (((x) >> 8)&0xff), \
- (((x) >>16)&0xff), ((x)>>24)
+ (((x) >>16)&0xff), (((x)>>24) & 0xff)
+
+#define HOSTNAME_MAX 1024
/* this is for creating ntlm header output */
CURLcode Curl_output_ntlm(struct connectdata *conn,
bool proxy)
{
const char *domain=""; /* empty */
- const char *host=""; /* empty */
+ char host [HOSTNAME_MAX+ 1] = ""; /* empty */
#ifndef USE_WINDOWS_SSPI
- int domlen=(int)strlen(domain);
- int hostlen = (int)strlen(host);
- int hostoff; /* host name offset */
- int domoff; /* domain name offset */
+ size_t domlen = strlen(domain);
+ size_t hostlen = strlen(host);
+ size_t hostoff; /* host name offset */
+ size_t domoff; /* domain name offset */
#endif
size_t size;
char *base64=NULL;
- unsigned char ntlmbuf[512]; /* enough, unless the host/domain is very long */
+ unsigned char ntlmbuf[1024]; /* enough, unless the user+host+domain is very
+ long */
/* point to the address of the pointer that holds the string to sent to the
server, which is for a plain host or for a HTTP proxy */
s_hSecDll = LoadLibrary("secur32.dll");
if (s_hSecDll != NULL) {
INIT_SECURITY_INTERFACE pInitSecurityInterface;
- pInitSecurityInterface =
- (INIT_SECURITY_INTERFACE)GetProcAddress(s_hSecDll,
- "InitSecurityInterfaceA");
- if (pInitSecurityInterface != NULL)
- s_pSecFn = pInitSecurityInterface();
+ pInitSecurityInterface =
+ (INIT_SECURITY_INTERFACE)GetProcAddress(s_hSecDll,
+ "InitSecurityInterfaceA");
+ if (pInitSecurityInterface != NULL)
+ s_pSecFn = pInitSecurityInterface();
}
}
if (s_pSecFn == NULL)
size = buf.cbBuffer;
}
#else
- hostoff = 32;
- domoff = hostoff + hostlen;
+ hostoff = 0;
+ domoff = hostoff + hostlen; /* This is 0: remember that host and domain
+ are empty */
/* Create and send a type-1 message:
0,0,0, /* part of type-1 long */
LONGQUARTET(
- NTLMFLAG_NEGOTIATE_OEM| /* 2 */
- NTLMFLAG_NEGOTIATE_NTLM_KEY /* 200 */
- /* equals 0x0202 */
+ NTLMFLAG_NEGOTIATE_OEM|
+ NTLMFLAG_REQUEST_TARGET|
+ NTLMFLAG_NEGOTIATE_NTLM_KEY|
+ NTLMFLAG_NEGOTIATE_ALWAYS_SIGN
),
SHORTPAIR(domlen),
SHORTPAIR(domlen),
SHORTPAIR(hostlen),
SHORTPAIR(hostoff),
0,0,
- host, domain);
+ host /* this is empty */, domain /* this is empty */);
/* initial packet length */
size = 32 + hostlen + domlen;
#endif
- /* now keeper of the base64 encoded package size */
+ 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|
+ NTLMFLAG_NEGOTIATE_ALWAYS_SIGN),
+ NTLMFLAG_NEGOTIATE_OEM|
+ NTLMFLAG_REQUEST_TARGET|
+ NTLMFLAG_NEGOTIATE_NTLM_KEY|
+ NTLMFLAG_NEGOTIATE_ALWAYS_SIGN);
+ print_flags(stderr,
+ NTLMFLAG_NEGOTIATE_OEM|
+ NTLMFLAG_REQUEST_TARGET|
+ NTLMFLAG_NEGOTIATE_NTLM_KEY|
+ NTLMFLAG_NEGOTIATE_ALWAYS_SIGN);
+ fprintf(stderr, "\n****\n");
+ });
+
+ /* now size is the size of the base64 encoded package size */
size = Curl_base64_encode((char *)ntlmbuf, size, &base64);
if(size >0 ) {
break;
case NTLMSTATE_TYPE2:
- /* We received the type-2 already, create a type-3 message:
+ /* We received the type-2 message already, create a type-3 message:
Index Description Content
0 NTLMSSP Signature Null-terminated ASCII "NTLMSSP"
#else
int lmrespoff;
+ unsigned char lmresp[24]; /* fixed-size */
+#if USE_NTRESPONSES
int ntrespoff;
- int useroff;
- unsigned char lmresp[0x18]; /* fixed-size */
-#ifdef USE_NTRESPONSES
- unsigned char ntresp[0x18]; /* fixed-size */
+ unsigned char ntresp[24]; /* fixed-size */
#endif
+ size_t useroff;
const char *user;
- int userlen;
+ size_t userlen;
user = strchr(userp, '\\');
if(!user)
if (user) {
domain = userp;
- domlen = (int)(user - domain);
+ domlen = (user - domain);
user++;
}
else
user = userp;
- userlen = (int)strlen(user);
+ userlen = strlen(user);
- mkhash(passwdp, &ntlm->nonce[0], lmresp
-#ifdef USE_NTRESPONSES
- , ntresp
+ if (gethostname(host, HOSTNAME_MAX)) {
+ infof(conn->data, "gethostname() failed, continuing without!");
+ hostlen = 0;
+ }
+ else {
+ hostlen = strlen(host);
+ }
+
+ {
+#if USE_NTRESPONSES
+ unsigned char ntbuffer[0x18];
+#endif
+ unsigned char lmbuffer[0x18];
+
+#if USE_NTRESPONSES
+ mk_nt_hash(passwdp, ntbuffer);
+ lm_resp(ntbuffer, &ntlm->nonce[0], ntresp);
#endif
- );
- domoff = 64; /* always */
+ mk_lm_hash(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;
- lmrespoff = hostoff + hostlen;
- ntrespoff = lmrespoff + 0x18;
/* Create the big type-3 message binary blob */
size = snprintf((char *)ntlmbuf, sizeof(ntlmbuf),
"NTLMSSP%c"
"\x03%c%c%c" /* type-3, 32 bits */
- "%c%c%c%c" /* LanManager length + allocated space */
+ "%c%c" /* LanManager length */
+ "%c%c" /* LanManager allocated space */
"%c%c" /* LanManager offset */
"%c%c" /* 2 zeroes */
"%c%c" /* host length */
"%c%c" /* host allocated space */
"%c%c" /* host offset */
- "%c%c%c%c%c%c" /* 6 zeroes */
-
- "\xff\xff" /* message length */
"%c%c" /* 2 zeroes */
- "\x01\x82" /* flags */
+ "%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 */
SHORTPAIR(lmrespoff),
0x0, 0x0,
-#ifdef USE_NTRESPONSES
+#if USE_NTRESPONSES
SHORTPAIR(0x18), /* NT-response length, twice */
SHORTPAIR(0x18),
+ SHORTPAIR(ntrespoff),
+ 0x0, 0x0,
#else
0x0, 0x0,
0x0, 0x0,
-#endif
- SHORTPAIR(ntrespoff),
0x0, 0x0,
-
+ 0x0, 0x0,
+#endif
SHORTPAIR(domlen),
SHORTPAIR(domlen),
SHORTPAIR(domoff),
SHORTPAIR(hostlen),
SHORTPAIR(hostlen),
SHORTPAIR(hostoff),
- 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+ 0x0, 0x0,
+ 0x0, 0x0,
+ 0x0, 0x0,
+ 0x0, 0x0,
0x0, 0x0,
- 0x0, 0x0);
+ LONGQUARTET(ntlm->flags));
+ DEBUG_OUT(assert(size==64));
- /* size is now 64 */
- size=64;
- ntlmbuf[62]=ntlmbuf[63]=0;
+ DEBUG_OUT(assert(size == lmrespoff));
+ /* We append the binary hashes */
+ if(size < (sizeof(ntlmbuf) - 0x18)) {
+ memcpy(&ntlmbuf[size], lmresp, 0x18);
+ size += 0x18;
+ }
+
+ DEBUG_OUT({
+ fprintf(stderr, "**** TYPE3 header lmresp=");
+ print_hex(stderr, &ntlmbuf[lmrespoff], 0x18);
+ });
+
+#if USE_NTRESPONSES
+ if(size < (sizeof(ntlmbuf) - 0x18)) {
+ DEBUG_OUT(assert(size == ntrespoff));
+ memcpy(&ntlmbuf[size], ntresp, 0x18);
+ size += 0x18;
+ }
+
+ DEBUG_OUT({
+ fprintf(stderr, "\n ntresp=");
+ print_hex(stderr, &ntlmbuf[ntrespoff], 0x18);
+ });
+
+#endif
- /* Make sure that the user and domain strings fit in the target buffer
- before we copy them there. */
- if(size + userlen + domlen >= sizeof(ntlmbuf)) {
- failf(conn->data, "user + domain name too big");
+ DEBUG_OUT({
+ fprintf(stderr, "\n flags=0x%02.2x%02.2x%02.2x%02.2x 0x%08.8x ",
+ LONGQUARTET(ntlm->flags), ntlm->flags);
+ print_flags(stderr, ntlm->flags);
+ fprintf(stderr, "\n****\n");
+ });
+
+
+ /* Make sure that the domain, user and host strings fit in the target
+ buffer before we copy them there. */
+ if(size + userlen + domlen + hostlen >= sizeof(ntlmbuf)) {
+ failf(conn->data, "user + domain + host name too big");
return CURLE_OUT_OF_MEMORY;
}
+ curlassert(size == domoff);
memcpy(&ntlmbuf[size], domain, domlen);
size += domlen;
+ curlassert(size == useroff);
memcpy(&ntlmbuf[size], user, userlen);
size += userlen;
- /* we append the binary hashes to the end of the blob */
- if(size < ((int)sizeof(ntlmbuf) - 0x18)) {
- memcpy(&ntlmbuf[size], lmresp, 0x18);
- size += 0x18;
- }
-
-#ifdef USE_NTRESPONSES
- if(size < ((int)sizeof(ntlmbuf) - 0x18)) {
- memcpy(&ntlmbuf[size], ntresp, 0x18);
- size += 0x18;
- }
-#endif
-
- ntlmbuf[56] = (unsigned char)(size & 0xff);
- ntlmbuf[57] = (unsigned char)(size >> 8);
+ curlassert(size == hostoff);
+ memcpy(&ntlmbuf[size], host, hostlen);
+ size += hostlen;
#endif
ntlm_sspi_cleanup(&conn->proxyntlm);
if (s_hSecDll != NULL) {
FreeLibrary(s_hSecDll);
- s_hSecDll = NULL;
- s_pSecFn = NULL;
+ s_hSecDll = NULL;
+ s_pSecFn = NULL;
}
#else
(void)conn;
projects / thirdparty / curl.git / commitdiff
