Imported Upstream version 2.3_rc1

1 files changed, 0 insertions, 353 deletions

diff --git a/ntlm.c b/ntlm.c
deleted file mode 100644
index 0453358..0000000
--- a/ntlm.c
+++ /dev/null
@@ -1,353 +0,0 @@
-/*
- *  ntlm proxy support for OpenVPN
- *
- *  Copyright (C) 2004 William Preston
- *
- *  *NTLMv2 support and domain name parsing by Miroslav Zajic, Nextsoft s.r.o.*
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program (see the file COPYING included with this
- *  distribution); if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "syshead.h"
-
-#if NTLM
-
-#include "common.h"
-#include "buffer.h"
-#include "misc.h"
-#include "socket.h"
-#include "fdmisc.h"
-#include "proxy.h"
-#include "ntlm.h"
-#include "base64.h"
-#include "crypto.h"
-
-#include "memdbg.h"
-
-
-/* 64bit datatype macros */
-#ifdef _MSC_VER 
-	/* MS compilers */
-#	define UINTEGER64 __int64
-#	define UINT64(c) c ## Ui64
-#else 
-	/* Non MS compilers */
-#	define UINTEGER64 unsigned long long
-#	define UINT64(c) c ## LL
-#endif
-
-
-
-
-static void
-create_des_keys(const unsigned char *hash, unsigned char *key)
-{
-  key[0] = hash[0];
-  key[1] = ((hash[0]&1)<<7)|(hash[1]>>1);
-  key[2] = ((hash[1]&3)<<6)|(hash[2]>>2);
-  key[3] = ((hash[2]&7)<<5)|(hash[3]>>3);
-  key[4] = ((hash[3]&15)<<4)|(hash[4]>>4);
-  key[5] = ((hash[4]&31)<<3)|(hash[5]>>5);
-  key[6] = ((hash[5]&63)<<2)|(hash[6]>>6);
-  key[7] = ((hash[6]&127)<<1);
-  des_set_odd_parity((des_cblock *)key);
-}
-
-static void
-gen_md4_hash (const char* data, int data_len, char *result)
-{
-  /* result is 16 byte md4 hash */
-
-  MD4_CTX c;
-  char md[16];
-
-  MD4_Init (&c);
-  MD4_Update (&c, data, data_len);
-  MD4_Final ((unsigned char *)md, &c);
-
-  memcpy (result, md, 16);
-}
-
-static void
-gen_hmac_md5 (const char* data, int data_len, const char* key, int key_len,char *result)
-{
-	unsigned int len;
-
-	HMAC_CTX c;
-	HMAC_Init (&c, key, key_len, EVP_md5());
-	HMAC_Update (&c, (const unsigned char *)data, data_len);
-	HMAC_Final (&c, (unsigned char *)result, &len);
-	HMAC_CTX_cleanup(&c);
-}
-
-static void
-gen_timestamp (unsigned char *timestamp)
-{ 
-	/* Copies 8 bytes long timestamp into "timestamp" buffer. 
-	 * Timestamp is Little-endian, 64-bit signed value representing the number of tenths of a microsecond since January 1, 1601.
-	 */
-
-	UINTEGER64 timestamp_ull;
-
-	timestamp_ull = openvpn_time(NULL);
-	timestamp_ull = (timestamp_ull + UINT64(11644473600)) * UINT64(10000000);
-
-	/* store little endian value */
-	timestamp[0]= timestamp_ull & UINT64(0xFF);
-	timestamp[1]= (timestamp_ull  >> 8)  & UINT64(0xFF);
-	timestamp[2]= (timestamp_ull  >> 16) & UINT64(0xFF);
-	timestamp[3]= (timestamp_ull  >> 24) & UINT64(0xFF);
-	timestamp[4]= (timestamp_ull  >> 32) & UINT64(0xFF);
-	timestamp[5]= (timestamp_ull  >> 40) & UINT64(0xFF);
-	timestamp[6]= (timestamp_ull  >> 48) & UINT64(0xFF);
-	timestamp[7]= (timestamp_ull  >> 56) & UINT64(0xFF);
-}
-
-static void
-gen_nonce (unsigned char *nonce)
-{ 
-	/* Generates 8 random bytes to be used as client nonce */
-	int i;
-
-	for(i=0;i<8;i++){
-		nonce[i] = (unsigned char)get_random();
-	}
-}
-
-unsigned char *my_strupr(unsigned char *str)
-{ 
-	/* converts string to uppercase in place */
-	unsigned char *tmp = str;;
-
-	do *str = toupper(*str); while (*(++str));
-	return tmp;
-}
-
-static int
-unicodize (char *dst, const char *src)
-{
-  /* not really unicode... */
-  int i = 0;
-  do
-    {
-      dst[i++] = *src;
-      dst[i++] = 0;
-    }
-  while (*src++);
-
-  return i;
-}
-
-static void
-add_security_buffer(int sb_offset, void *data, int length, unsigned char *msg_buf, int *msg_bufpos)
-{
-	/* Adds security buffer data to a message and sets security buffer's offset and length */
-	msg_buf[sb_offset] = (unsigned char)length;
-	msg_buf[sb_offset + 2] = msg_buf[sb_offset];
-	msg_buf[sb_offset + 4] = (unsigned char)(*msg_bufpos & 0xff);
-	msg_buf[sb_offset + 5] = (unsigned char)((*msg_bufpos >> 8) & 0xff);
-	memcpy(&msg_buf[*msg_bufpos], data, msg_buf[sb_offset]);
-	*msg_bufpos += length;
-}
-
-const char *
-ntlm_phase_1 (const struct http_proxy_info *p, struct gc_arena *gc)
-{
-  struct buffer out = alloc_buf_gc (96, gc);
-  /* try a minimal NTLM handshake
-   *
-   * http://davenport.sourceforge.net/ntlm.html
-   *
-   * This message contains only the NTLMSSP signature,
-   * the NTLM message type,
-   * and the minimal set of flags (Negotiate NTLM and Negotiate OEM).
-   *
-   */
-  buf_printf (&out, "%s", "TlRMTVNTUAABAAAAAgIAAA==");
-  return (BSTR (&out));
-}
-
-const char *
-ntlm_phase_3 (const struct http_proxy_info *p, const char *phase_2, struct gc_arena *gc)
-{
-	/* NTLM handshake
-	 *
-	 * http://davenport.sourceforge.net/ntlm.html
-	 *
-	 */
-	
-  char pwbuf[sizeof (p->up.password) * 2]; /* for unicode password */
-  char buf2[128]; /* decoded reply from proxy */
-  unsigned char phase3[464];
-
-  char md4_hash[21];
-  char challenge[8], ntlm_response[24];
-  int i, ret_val;
-  des_cblock key1, key2, key3;
-  des_key_schedule sched1, sched2, sched3;
-
-	char ntlmv2_response[144];
-	char userdomain_u[256]; /* for uppercase unicode username and domain */
-	char userdomain[128];   /* the same as previous but ascii */
-	char ntlmv2_hash[16];
-	char ntlmv2_hmacmd5[16];
-	char *ntlmv2_blob = ntlmv2_response + 16; /* inside ntlmv2_response, length: 128 */
-	int ntlmv2_blob_size=0;
-	int phase3_bufpos = 0x40; /* offset to next security buffer data to be added */
-	size_t len;
-
-	char domain[128];
-	char username[128];
-	char *separator;
-
-	bool ntlmv2_enabled = (p->auth_method == HTTP_AUTH_NTLM2);
-
-  CLEAR (buf2);
-
-  ASSERT (strlen (p->up.username) > 0);
-  ASSERT (strlen (p->up.password) > 0);
-	
-	/* username parsing */
-	separator = strchr(p->up.username, '\\');
-	if (separator == NULL) {
-		strncpy(username, p->up.username, sizeof(username)-1);
-		username[sizeof(username)-1]=0;
-		domain[0]=0;
-	} else {
-		strncpy(username, separator+1, sizeof(username)-1);
-		username[sizeof(username)-1]=0;
-		len = separator - p->up.username;
-		if (len > sizeof(domain) - 1) len = sizeof(domain) - 1;
-		strncpy(domain, p->up.username,  len);
-		domain[len]=0;
-	}
-
-
-  /* fill 1st 16 bytes with md4 hash, disregard terminating null */
-  gen_md4_hash (pwbuf, unicodize (pwbuf, p->up.password) - 2, md4_hash);
-
-  /* pad to 21 bytes */
-  memset (md4_hash + 16, 0, 5);
-
-  ret_val = base64_decode( phase_2, (void *)buf2);
-  if (ret_val < 0)
-    return NULL;
-
-  /* we can be sure that phase_2 is less than 128
-   * therefore buf2 needs to be (3/4 * 128) */
-
-  /* extract the challenge from bytes 24-31 */
-  for (i=0; i<8; i++)
-  {
-    challenge[i] = buf2[i+24];
-  }
-
-	if (ntlmv2_enabled){ /* Generate NTLMv2 response */
-	        int tib_len;
-
-		/* NTLMv2 hash */
-	        my_strupr((unsigned char *)strcpy(userdomain, username));
-		if (strlen(username) + strlen(domain) < sizeof(userdomain))
-			strcat(userdomain, domain);
-		else
-			msg (M_INFO, "Warning: Username or domain too long");
-		unicodize (userdomain_u, userdomain);
-		gen_hmac_md5(userdomain_u, 2 * strlen(userdomain), md4_hash, 16, ntlmv2_hash);
-
-		/* NTLMv2 Blob */
-		memset(ntlmv2_blob, 0, 128);                /* Clear blob buffer */ 
-		ntlmv2_blob[0x00]=1;                        /* Signature */
-		ntlmv2_blob[0x01]=1;                        /* Signature */
-		ntlmv2_blob[0x04]=0;                        /* Reserved */
-		gen_timestamp((unsigned char *)&ntlmv2_blob[0x08]);          /* 64-bit Timestamp */
-		gen_nonce((unsigned char *)&ntlmv2_blob[0x10]);              /* 64-bit Client Nonce */
-		ntlmv2_blob[0x18]=0;                        /* Unknown, zero should work */
-
-		/* Add target information block to the blob */
-		if (( *((long *)&buf2[0x14]) & 0x00800000) == 0x00800000){ /* Check for Target Information block */
-			tib_len = buf2[0x28];/* Get Target Information block size */
-			if (tib_len > 96) tib_len = 96;
-			{
-			  char *tib_ptr = buf2 + buf2[0x2c]; /* Get Target Information block pointer */
-			  memcpy(&ntlmv2_blob[0x1c], tib_ptr, tib_len); /* Copy Target Information block into the blob */
-			}
-		} else {
-			tib_len = 0;
-		}
-
-		ntlmv2_blob[0x1c + tib_len] = 0;            /* Unknown, zero works */ 
-
-		/* Get blob length */
-		ntlmv2_blob_size = 0x20 + tib_len; 
-
-		/* Add challenge from message 2 */
-		memcpy(&ntlmv2_response[8], challenge, 8);
-
-		/* hmac-md5 */
-		gen_hmac_md5(&ntlmv2_response[8], ntlmv2_blob_size + 8, ntlmv2_hash, 16, ntlmv2_hmacmd5);
-		
-		/* Add hmac-md5 result to the blob */
-		memcpy(ntlmv2_response, ntlmv2_hmacmd5, 16); /* Note: This overwrites challenge previously written at ntlmv2_response[8..15] */
-	
-	} else { /* Generate NTLM response */
-
-		create_des_keys ((unsigned char *)md4_hash, key1);
-		des_set_key_unchecked ((des_cblock *)key1, sched1);
-		des_ecb_encrypt ((des_cblock *)challenge, (des_cblock *)ntlm_response, sched1, DES_ENCRYPT);
-
-		create_des_keys ((unsigned char *)&(md4_hash[7]), key2);
-		des_set_key_unchecked ((des_cblock *)key2, sched2);
-		des_ecb_encrypt ((des_cblock *)challenge, (des_cblock *)&(ntlm_response[8]), sched2, DES_ENCRYPT);
-
-		create_des_keys ((unsigned char *)&(md4_hash[14]), key3);
-		des_set_key_unchecked ((des_cblock *)key3, sched3);
-		des_ecb_encrypt ((des_cblock *)challenge, (des_cblock *)&(ntlm_response[16]), sched3, DES_ENCRYPT);
-	}
-	
-	
-	memset (phase3, 0, sizeof (phase3)); /* clear reply */
-
-	strcpy ((char *)phase3, "NTLMSSP\0"); /* signature */
-	phase3[8] = 3; /* type 3 */
-
-	if (ntlmv2_enabled){ /* NTLMv2 response */
-		add_security_buffer(0x14, ntlmv2_response, ntlmv2_blob_size + 16, phase3, &phase3_bufpos);
-	}else{ /* NTLM response */
-		add_security_buffer(0x14, ntlm_response, 24, phase3, &phase3_bufpos);
-	}
-	
-	/* username in ascii */
-	add_security_buffer(0x24, username, strlen (username), phase3, &phase3_bufpos);
-
-	/* Set domain. If <domain> is empty, default domain will be used (i.e. proxy's domain) */ 
-	add_security_buffer(0x1c, domain, strlen (domain), phase3, &phase3_bufpos);
-	
-
-	/* other security buffers will be empty */
-	phase3[0x10] = phase3_bufpos; /* lm not used */
-	phase3[0x30] = phase3_bufpos; /* no workstation name supplied */
-	phase3[0x38] = phase3_bufpos; /* no session key */
-	
-	/* flags */
-  phase3[0x3c] = 0x02; /* negotiate oem */
-  phase3[0x3d] = 0x02; /* negotiate ntlm */
-
-  return ((const char *)make_base64_string2 ((unsigned char *)phase3, phase3_bufpos, gc));
-}
-
-#else
-static void dummy(void) {}
-#endif