1 files changed, 0 insertions, 449 deletions

diff --git a/source4/libcli/auth/ntlmssp_sign.c b/source4/libcli/auth/ntlmssp_sign.c
deleted file mode 100644
index 347a85da77..0000000000
--- a/source4/libcli/auth/ntlmssp_sign.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/* 
- *  Unix SMB/CIFS implementation.
- *  Version 3.0
- *  NTLMSSP Signing routines
- *  Copyright (C) Luke Kenneth Casson Leighton 1996-2001
- *  Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2004
- *  
- *  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; if not, write to the Free Software Foundation,
- *  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include "includes.h"
-#include "auth/auth.h"
-#include "lib/crypto/crypto.h"
-
-#define CLI_SIGN "session key to client-to-server signing key magic constant"
-#define CLI_SEAL "session key to client-to-server sealing key magic constant"
-#define SRV_SIGN "session key to server-to-client signing key magic constant"
-#define SRV_SEAL "session key to server-to-client sealing key magic constant"
-
-/**
- * Some notes on then NTLM2 code:
- *
- * This code works correctly for the sealing part of the problem.  If
- * we disable the check for valid client signatures, then we see that
- * the output of a rpcecho 'sinkdata' at smbd is correct.  We get the
- * valid data, and it is validly decrypted.
- * 
- * This means that the quantity of data passing though the RC4 sealing
- * pad is correct.  
- *
- * This code also correctly matches test values that I have obtained,
- * claiming to be the correct output of NTLM2 signature generation.
- *
- */
-
-static void calc_ntlmv2_key(TALLOC_CTX *mem_ctx, 
-			    DATA_BLOB *subkey,
-			    DATA_BLOB session_key, 
-			    const char *constant)
-{
-	struct MD5Context ctx3;
-	*subkey = data_blob_talloc(mem_ctx, NULL, 16);
-	MD5Init(&ctx3);
-	MD5Update(&ctx3, session_key.data, session_key.length);
-	MD5Update(&ctx3, constant, strlen(constant)+1);
-	MD5Final(subkey->data, &ctx3);
-}
-
-enum ntlmssp_direction {
-	NTLMSSP_SEND,
-	NTLMSSP_RECEIVE
-};
-
-static NTSTATUS ntlmssp_make_packet_signature(struct ntlmssp_state *ntlmssp_state,
-					      TALLOC_CTX *sig_mem_ctx, 
-					      const uint8_t *data, size_t length, 
-					      const uint8_t *whole_pdu, size_t pdu_length, 
-					      enum ntlmssp_direction direction,
-					      DATA_BLOB *sig, BOOL encrypt_sig)
-{
-	if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
-
-		HMACMD5Context ctx;
-		uint8_t digest[16];
-		uint8_t seq_num[4];
-
-		*sig = data_blob_talloc(sig_mem_ctx, NULL, NTLMSSP_SIG_SIZE);
-		if (!sig->data) {
-			return NT_STATUS_NO_MEMORY;
-		}
-			
-		switch (direction) {
-		case NTLMSSP_SEND:
-			SIVAL(seq_num, 0, ntlmssp_state->ntlm2_send_seq_num);
-			ntlmssp_state->ntlm2_send_seq_num++;
-			hmac_md5_init_limK_to_64(ntlmssp_state->send_sign_key.data, 
-						 ntlmssp_state->send_sign_key.length, &ctx);
-			break;
-		case NTLMSSP_RECEIVE:
-			SIVAL(seq_num, 0, ntlmssp_state->ntlm2_recv_seq_num);
-			ntlmssp_state->ntlm2_recv_seq_num++;
-			hmac_md5_init_limK_to_64(ntlmssp_state->recv_sign_key.data, 
-						 ntlmssp_state->recv_sign_key.length, &ctx);
-			break;
-		}
-		hmac_md5_update(seq_num, sizeof(seq_num), &ctx);
-		hmac_md5_update(whole_pdu, pdu_length, &ctx);
-		hmac_md5_final(digest, &ctx);
-
-		if (encrypt_sig && ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
-			switch (direction) {
-			case NTLMSSP_SEND:
-				arcfour_crypt_sbox(ntlmssp_state->send_seal_hash, digest, 8);
-				break;
-			case NTLMSSP_RECEIVE:
-				arcfour_crypt_sbox(ntlmssp_state->recv_seal_hash, digest, 8);
-				break;
-			}
-		}
-
-		SIVAL(sig->data, 0, NTLMSSP_SIGN_VERSION);
-		memcpy(sig->data + 4, digest, 8);
-		memcpy(sig->data + 12, seq_num, 4);
-
-	} else {
-		uint32_t crc;
-		crc = crc32_calc_buffer(data, length);
-		if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlm_seq_num)) {
-			return NT_STATUS_NO_MEMORY;
-		}
-		ntlmssp_state->ntlm_seq_num++;
-
-		arcfour_crypt_sbox(ntlmssp_state->ntlmssp_hash, sig->data+4, sig->length-4);
-	}
-	dump_data_pw("calculated ntlmssp signature\n", sig->data, sig->length);
-	return NT_STATUS_OK;
-}
-
-NTSTATUS ntlmssp_sign_packet(struct ntlmssp_state *ntlmssp_state,
-			     TALLOC_CTX *sig_mem_ctx, 
-			     const uint8_t *data, size_t length, 
-			     const uint8_t *whole_pdu, size_t pdu_length, 
-			     DATA_BLOB *sig) 
-{
-	if (!ntlmssp_state->session_key.length) {
-		DEBUG(3, ("NO session key, cannot check sign packet\n"));
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-	
-	if (!ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
-		DEBUG(3, ("NTLMSSP Signing not negotiated - cannot sign packet!\n"));
-		return NT_STATUS_INVALID_PARAMETER;
-	}
-	
-	return ntlmssp_make_packet_signature(ntlmssp_state, sig_mem_ctx, 
-					     data, length, 
-					     whole_pdu, pdu_length, 
-					     NTLMSSP_SEND, sig, True);
-}
-
-/**
- * Check the signature of an incoming packet 
- *
- */
-
-NTSTATUS ntlmssp_check_packet(struct ntlmssp_state *ntlmssp_state,
-			      TALLOC_CTX *sig_mem_ctx, 
-			      const uint8_t *data, size_t length, 
-			      const uint8_t *whole_pdu, size_t pdu_length, 
-			      const DATA_BLOB *sig) 
-{
-	DATA_BLOB local_sig;
-	NTSTATUS nt_status;
-
-	if (!ntlmssp_state->session_key.length) {
-		DEBUG(3, ("NO session key, cannot check packet signature\n"));
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	if (sig->length < 8) {
-		DEBUG(0, ("NTLMSSP packet check failed due to short signature (%lu bytes)!\n", 
-			  (unsigned long)sig->length));
-	}
-
-	nt_status = ntlmssp_make_packet_signature(ntlmssp_state, sig_mem_ctx, 
-						  data, length, 
-						  whole_pdu, pdu_length, 
-						  NTLMSSP_RECEIVE, &local_sig, True);
-	
-	if (!NT_STATUS_IS_OK(nt_status)) {
-		DEBUG(0, ("NTLMSSP packet check failed with %s\n", nt_errstr(nt_status)));
-		return nt_status;
-	}
-
-	if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
-		if (local_sig.length != sig->length ||
-		    memcmp(local_sig.data, 
-			   sig->data, sig->length) != 0) {
-			DEBUG(5, ("BAD SIG NTLM2: wanted signature of\n"));
-			dump_data(5, local_sig.data, local_sig.length);
-			
-			DEBUG(5, ("BAD SIG: got signature of\n"));
-			dump_data(5, sig->data, sig->length);
-			
-			DEBUG(0, ("NTLMSSP NTLM2 packet check failed due to invalid signature!\n"));
-			return NT_STATUS_ACCESS_DENIED;
-		}
-	} else {
-		if (local_sig.length != sig->length ||
-		    memcmp(local_sig.data + 8, 
-			   sig->data + 8, sig->length - 8) != 0) {
-			DEBUG(5, ("BAD SIG NTLM1: wanted signature of\n"));
-			dump_data(5, local_sig.data, local_sig.length);
-			
-			DEBUG(5, ("BAD SIG: got signature of\n"));
-			dump_data(5, sig->data, sig->length);
-			
-			DEBUG(0, ("NTLMSSP NTLM1 packet check failed due to invalid signature!\n"));
-			return NT_STATUS_ACCESS_DENIED;
-		}
-	}
-	dump_data_pw("checked ntlmssp signature\n", sig->data, sig->length);
-
-	return NT_STATUS_OK;
-}
-
-
-/**
- * Seal data with the NTLMSSP algorithm
- *
- */
-
-NTSTATUS ntlmssp_seal_packet(struct ntlmssp_state *ntlmssp_state,
-			     TALLOC_CTX *sig_mem_ctx, 
-			     uint8_t *data, size_t length,
-			     const uint8_t *whole_pdu, size_t pdu_length, 
-			     DATA_BLOB *sig)
-{	
-	NTSTATUS nt_status;
-	if (!ntlmssp_state->session_key.length) {
-		DEBUG(3, ("NO session key, cannot seal packet\n"));
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	if (!ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
-		DEBUG(3, ("NTLMSSP Sealing not negotiated - cannot seal packet!\n"));
-		return NT_STATUS_INVALID_PARAMETER;
-	}
-
-	DEBUG(10,("ntlmssp_seal_data: seal\n"));
-	dump_data_pw("ntlmssp clear data\n", data, length);
-	if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
-		/* The order of these two operations matters - we must first seal the packet,
-		   then seal the sequence number - this is becouse the send_seal_hash is not
-		   constant, but is is rather updated with each iteration */
-		nt_status = ntlmssp_make_packet_signature(ntlmssp_state, sig_mem_ctx, 
-							  data, length, 
-							  whole_pdu, pdu_length, 
-							  NTLMSSP_SEND, sig, False);
-		arcfour_crypt_sbox(ntlmssp_state->send_seal_hash, data, length);
-		if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
-			arcfour_crypt_sbox(ntlmssp_state->send_seal_hash, sig->data+4, 8);
-		}
-	} else {
-		uint32_t crc;
-		crc = crc32_calc_buffer(data, length);
-		if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlm_seq_num)) {
-			return NT_STATUS_NO_MEMORY;
-		}
-
-		/* The order of these two operations matters - we must
-		   first seal the packet, then seal the sequence
-		   number - this is becouse the ntlmssp_hash is not
-		   constant, but is is rather updated with each
-		   iteration */
-
-		arcfour_crypt_sbox(ntlmssp_state->ntlmssp_hash, data, length);
-		arcfour_crypt_sbox(ntlmssp_state->ntlmssp_hash, sig->data+4, sig->length-4);
-		/* increment counter on send */
-		ntlmssp_state->ntlm_seq_num++;
-		nt_status = NT_STATUS_OK;
-	}
-	dump_data_pw("ntlmssp signature\n", sig->data, sig->length);
-	dump_data_pw("ntlmssp sealed data\n", data, length);
-
-
-	return nt_status;
-}
-
-/**
- * Unseal data with the NTLMSSP algorithm
- *
- */
-
-NTSTATUS ntlmssp_unseal_packet(struct ntlmssp_state *ntlmssp_state,
-			       TALLOC_CTX *sig_mem_ctx, 
-			       uint8_t *data, size_t length,
-			       const uint8_t *whole_pdu, size_t pdu_length, 
-			       DATA_BLOB *sig)
-{
-	DATA_BLOB local_sig;
-	NTSTATUS nt_status;
-	if (!ntlmssp_state->session_key.length) {
-		DEBUG(3, ("NO session key, cannot unseal packet\n"));
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	dump_data_pw("ntlmssp sealed data\n", data, length);
-	if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
-		arcfour_crypt_sbox(ntlmssp_state->recv_seal_hash, data, length);
-
-		nt_status = ntlmssp_make_packet_signature(ntlmssp_state, sig_mem_ctx, 
-							  data, length, 
-							  whole_pdu, pdu_length, 
-							  NTLMSSP_RECEIVE, &local_sig, True);
-		if (!NT_STATUS_IS_OK(nt_status)) {
-			return nt_status;
-		}
-
-		if (local_sig.length != sig->length ||
-		    memcmp(local_sig.data, 
-			   sig->data, sig->length) != 0) {
-			DEBUG(5, ("BAD SIG NTLM2: wanted signature of\n"));
-			dump_data(5, local_sig.data, local_sig.length);
-			
-			DEBUG(5, ("BAD SIG: got signature of\n"));
-			dump_data(5, sig->data, sig->length);
-			
-			DEBUG(0, ("NTLMSSP NTLM2 packet check failed due to invalid signature!\n"));
-			return NT_STATUS_ACCESS_DENIED;
-		}
-
-		dump_data_pw("ntlmssp clear data\n", data, length);
-		return NT_STATUS_OK;
-	} else {
-		arcfour_crypt_sbox(ntlmssp_state->ntlmssp_hash, data, length);
-		dump_data_pw("ntlmssp clear data\n", data, length);
-		return ntlmssp_check_packet(ntlmssp_state, sig_mem_ctx, data, length, whole_pdu, pdu_length, sig);
-	}
-}
-
-/**
-   Initialise the state for NTLMSSP signing.
-*/
-NTSTATUS ntlmssp_sign_init(struct ntlmssp_state *ntlmssp_state)
-{
-	uint8_t p24[24];
-	ZERO_STRUCT(p24);
-
-	DEBUG(3, ("NTLMSSP Sign/Seal - Initialising with flags:\n"));
-	debug_ntlmssp_flags(ntlmssp_state->neg_flags);
-
-	if (!ntlmssp_state->session_key.length) {
-		DEBUG(3, ("NO session key, cannot intialise signing\n"));
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
-	{
-		DATA_BLOB weak_session_key = ntlmssp_state->session_key;
-		const char *send_sign_const;
-		const char *send_seal_const;
-		const char *recv_sign_const;
-		const char *recv_seal_const;
-
-		switch (ntlmssp_state->role) {
-		case NTLMSSP_CLIENT:
-			send_sign_const = CLI_SIGN;
-			send_seal_const = CLI_SEAL;
-			recv_sign_const = SRV_SIGN;
-			recv_seal_const = SRV_SEAL;
-			break;
-		case NTLMSSP_SERVER:
-			send_sign_const = SRV_SIGN;
-			send_seal_const = SRV_SEAL;
-			recv_sign_const = CLI_SIGN;
-			recv_seal_const = CLI_SEAL;
-			break;
-		default:
-			return NT_STATUS_INTERNAL_ERROR;
-		}
-		
-		/**
-		   Weaken NTLMSSP keys to cope with down-level clients, servers and export restrictions.
-		   
-		   We probably should have some parameters to control this, once we get NTLM2 working.
-		*/
-
-
-		if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_128) {
-			
-		} else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_56) {
-			weak_session_key.length = 6;
-		} else { /* forty bits */
-			weak_session_key.length = 5;
-		}
-		dump_data_pw("NTLMSSP weakend master key:\n",
-			     weak_session_key.data, 
-			     weak_session_key.length);
-
-		/* SEND */
-		calc_ntlmv2_key(ntlmssp_state, 
-				&ntlmssp_state->send_sign_key, 
-				ntlmssp_state->session_key, send_sign_const);
-		dump_data_pw("NTLMSSP send sign key:\n",
-			     ntlmssp_state->send_sign_key.data, 
-			     ntlmssp_state->send_sign_key.length);
-		
-		calc_ntlmv2_key(ntlmssp_state, 
-				&ntlmssp_state->send_seal_key, 
-				weak_session_key, send_seal_const);
-		dump_data_pw("NTLMSSP send seal key:\n",
-			     ntlmssp_state->send_seal_key.data, 
-			     ntlmssp_state->send_seal_key.length);
-
-		arcfour_init(ntlmssp_state->send_seal_hash, 
-			     &ntlmssp_state->send_seal_key);
-
-		dump_data_pw("NTLMSSP send sesl hash:\n", 
-			     ntlmssp_state->send_seal_hash, 
-			     sizeof(ntlmssp_state->send_seal_hash));
-
-		/* RECV */
-		calc_ntlmv2_key(ntlmssp_state, 
-				&ntlmssp_state->recv_sign_key, 
-				ntlmssp_state->session_key, recv_sign_const);
-		dump_data_pw("NTLMSSP recv sign key:\n",
-			     ntlmssp_state->recv_sign_key.data, 
-			     ntlmssp_state->recv_sign_key.length);
-
-		calc_ntlmv2_key(ntlmssp_state, 
-				&ntlmssp_state->recv_seal_key, 
-				weak_session_key, recv_seal_const);
-		dump_data_pw("NTLMSSP recv seal key:\n",
-			     ntlmssp_state->recv_seal_key.data, 
-			     ntlmssp_state->recv_seal_key.length);
-		arcfour_init(ntlmssp_state->recv_seal_hash, 
-			     &ntlmssp_state->recv_seal_key);
-
-		dump_data_pw("NTLMSSP receive seal hash:\n", 
-			     ntlmssp_state->recv_seal_hash, 
-			     sizeof(ntlmssp_state->recv_seal_hash));
-	} else {
-		DEBUG(5, ("NTLMSSP Sign/Seal - using NTLM1\n"));
-
-		arcfour_init(ntlmssp_state->ntlmssp_hash, 
-			     &ntlmssp_state->session_key);
-		dump_data_pw("NTLMSSP hash:\n", ntlmssp_state->ntlmssp_hash,
-			     sizeof(ntlmssp_state->ntlmssp_hash));
-	}
-
-	ntlmssp_state->ntlm_seq_num = 0;
-	ntlmssp_state->ntlm2_send_seq_num = 0;
-	ntlmssp_state->ntlm2_recv_seq_num = 0;
-
-	return NT_STATUS_OK;
-}