r3677: Seperate the SamLogon tests from the main RPC-NETLOGON test into a

RPC-SAMLOGON of their own.

I have expanded the tests to validate the use of various flags, which
change some of the crypto behaviour.

Andrew Bartlett
(This used to be commit 3a140a3691ce49ebf4d1efcb99cfffd26c68a28f)

1 files changed, 1085 insertions, 0 deletions

diff --git a/source4/torture/rpc/samlogon.c b/source4/torture/rpc/samlogon.c
new file mode 100644
index 0000000000..470d1d9b60
--- /dev/null
+++ b/source4/torture/rpc/samlogon.c
@@ -0,0 +1,1085 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   test suite for netlogon SamLogon operations
+
+   Copyright (C) Andrew Tridgell 2003
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2004
+   Copyright (C) Tim Potter      2003
+   
+   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "librpc/gen_ndr/ndr_netlogon.h"
+#include "auth/auth.h"
+#include "lib/crypto/crypto.h"
+
+#define TEST_MACHINE_NAME "samlogontest"
+
+enum ntlm_break {
+	BREAK_BOTH,
+	BREAK_NONE,
+	BREAK_LM,
+	BREAK_NT,
+	NO_LM,
+	NO_NT
+};
+
+struct samlogon_state {
+	TALLOC_CTX *mem_ctx;
+	const char *account_name;
+	const char *account_domain;
+	const char *password;
+	struct dcerpc_pipe *p;
+	int function_level;
+	struct netr_LogonSamLogon r;
+	struct netr_LogonSamLogonWithFlags r_flags;
+	struct netr_Authenticator auth, auth2;
+	struct creds_CredentialState *creds;
+
+	DATA_BLOB chall;
+};
+
+/* 
+   Authenticate a user with a challenge/response, checking session key
+   and valid authentication types
+*/
+static NTSTATUS check_samlogon(struct samlogon_state *samlogon_state, 
+			       enum ntlm_break break_which,
+			       DATA_BLOB *chall, 
+			       DATA_BLOB *lm_response, 
+			       DATA_BLOB *nt_response, 
+			       uint8_t lm_key[8], 
+			       uint8_t user_session_key[16], 
+			       char **error_string)
+{
+	NTSTATUS status;
+	struct netr_LogonSamLogon *r = &samlogon_state->r;
+	struct netr_LogonSamLogonWithFlags *r_flags = &samlogon_state->r_flags;
+	struct netr_NetworkInfo ninfo;
+	
+	struct netr_SamBaseInfo *base;
+
+	uint16 validation_level;
+	
+	samlogon_state->r.in.logon.network = &ninfo;
+	samlogon_state->r_flags.in.logon.network = &ninfo;
+	
+	ninfo.identity_info.domain_name.string = samlogon_state->account_domain;
+	ninfo.identity_info.parameter_control = 0;
+	ninfo.identity_info.logon_id_low = 0;
+	ninfo.identity_info.logon_id_high = 0;
+	ninfo.identity_info.account_name.string = samlogon_state->account_name;
+	ninfo.identity_info.workstation.string = TEST_MACHINE_NAME;
+		
+	memcpy(ninfo.challenge, chall->data, 8);
+		
+	switch (break_which) {
+	case BREAK_NONE:
+		break;
+	case BREAK_LM:
+		if (lm_response && lm_response->data) {
+			lm_response->data[0]++;
+		}
+		break;
+	case BREAK_NT:
+		if (nt_response && nt_response->data) {
+			nt_response->data[0]++;
+		}
+		break;
+	case BREAK_BOTH:
+		if (lm_response && lm_response->data) {
+			lm_response->data[0]++;
+		}
+		if (nt_response && nt_response->data) {
+			nt_response->data[0]++;
+		}
+		break;
+	case NO_LM:
+		data_blob_free(lm_response);
+		break;
+	case NO_NT:
+		data_blob_free(nt_response);
+		break;
+	}
+		
+	if (nt_response) {
+		ninfo.nt.data = nt_response->data;
+		ninfo.nt.length = nt_response->length;
+	} else {
+		ninfo.nt.data = NULL;
+		ninfo.nt.length = 0;
+	}
+		
+	if (lm_response) {
+		ninfo.lm.data = lm_response->data;
+		ninfo.lm.length = lm_response->length;
+	} else {
+		ninfo.lm.data = NULL;
+		ninfo.lm.length = 0;
+	}
+	
+	ZERO_STRUCT(samlogon_state->auth2);
+	creds_client_authenticator(samlogon_state->creds, &samlogon_state->auth);
+
+	switch (samlogon_state->function_level) {
+	case DCERPC_NETR_LOGONSAMLOGON: 
+		r->out.return_authenticator = NULL;
+		status = dcerpc_netr_LogonSamLogon(samlogon_state->p, samlogon_state->mem_ctx, r);
+		if (!r->out.return_authenticator || 
+		    !creds_client_check(samlogon_state->creds, &r->out.return_authenticator->cred)) {
+			printf("Credential chaining failed\n");
+		}
+		if (!NT_STATUS_IS_OK(status)) {
+			if (error_string) {
+				*error_string = strdup(nt_errstr(status));
+			}
+		}
+
+		validation_level = r->in.validation_level;
+		switch (validation_level) {
+		case 2:
+			base = &r->out.validation.sam2->base;
+			break;
+		case 3:
+			base = &r->out.validation.sam3->base;
+			break;
+		case 6:
+			base = &r->out.validation.sam6->base;
+			break;
+		}
+		break;
+	case DCERPC_NETR_LOGONSAMLOGONWITHFLAGS: 
+		r_flags->out.return_authenticator = NULL;
+		status = dcerpc_netr_LogonSamLogonWithFlags(samlogon_state->p, samlogon_state->mem_ctx, r_flags);
+		if (!r_flags->out.return_authenticator || 
+		    !creds_client_check(samlogon_state->creds, &r_flags->out.return_authenticator->cred)) {
+			printf("Credential chaining failed\n");
+		}
+		if (!NT_STATUS_IS_OK(status)) {
+			if (error_string) {
+				*error_string = strdup(nt_errstr(status));
+			}
+		}
+
+		validation_level = r_flags->in.validation_level;
+		switch (validation_level) {
+		case 2:
+			base = &r_flags->out.validation.sam2->base;
+			break;
+		case 3:
+			base = &r_flags->out.validation.sam3->base;
+			break;
+		case 6:
+			base = &r_flags->out.validation.sam6->base;
+			break;
+		}
+		break;
+	}
+		
+
+	if (!NT_STATUS_IS_OK(status)) {
+		/* we cannot check the session key, if the logon failed... */
+		return status;
+	}
+		
+
+	/* find and decyrpt the session keys, return in parameters above */
+	if (validation_level == 6) {
+		/* they aren't encrypted! */
+		if (user_session_key) {
+			memcpy(user_session_key, base->key.key, 16);
+		}
+		if (lm_key) {
+			memcpy(lm_key, base->LMSessKey.key, 8);
+		}
+	} else if (samlogon_state->creds->negotiate_flags) {
+		static const char zeros[16];
+			
+		if (memcmp(base->key.key, zeros,  
+			   sizeof(base->key.key)) != 0) {
+			creds_arcfour_crypt(samlogon_state->creds, 
+					    base->key.key, 
+					    sizeof(base->key.key));
+		}
+			
+		if (user_session_key) {
+			memcpy(user_session_key, base->key.key, 16);
+		}
+			
+		if (memcmp(base->LMSessKey.key, zeros,  
+			   sizeof(base->LMSessKey.key)) != 0) {
+			creds_arcfour_crypt(samlogon_state->creds, 
+					    base->LMSessKey.key, 
+					    sizeof(base->LMSessKey.key));
+		}
+			
+		if (lm_key) {
+			memcpy(lm_key, base->LMSessKey.key, 8);
+		}
+	} else {
+		static const char zeros[16];
+			
+		if (user_session_key) {
+			memcpy(user_session_key, base->key.key, 16);
+		}
+
+		if (memcmp(base->LMSessKey.key, zeros,  
+			   sizeof(base->LMSessKey.key)) != 0) {
+			creds_des_decrypt_LMKey(samlogon_state->creds, 
+						&base->LMSessKey);
+		}
+			
+		if (lm_key) {
+			memcpy(lm_key, base->LMSessKey.key, 8);
+		}
+	}
+	
+	return status;
+} 
+
+
+/* 
+ * Test the normal 'LM and NTLM' combination
+ */
+
+static BOOL test_lm_ntlm_broken(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string) 
+{
+	BOOL pass = True;
+	BOOL lm_good;
+	NTSTATUS nt_status;
+	DATA_BLOB lm_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
+	DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
+	DATA_BLOB session_key = data_blob_talloc(samlogon_state->mem_ctx, NULL, 16);
+
+	uint8_t lm_key[8];
+	uint8_t user_session_key[16];
+	uint8_t lm_hash[16];
+	uint8_t nt_hash[16];
+	
+	ZERO_STRUCT(lm_key);
+	ZERO_STRUCT(user_session_key);
+
+	lm_good = SMBencrypt(samlogon_state->password, samlogon_state->chall.data, lm_response.data);
+	if (!lm_good) {
+		ZERO_STRUCT(lm_hash);
+	} else {
+		E_deshash(samlogon_state->password, lm_hash); 
+	}
+		
+	SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
+
+	E_md4hash(samlogon_state->password, nt_hash);
+	SMBsesskeygen_ntv1(nt_hash, session_key.data);
+
+	nt_status = check_samlogon(samlogon_state,
+				   break_which,
+				   &samlogon_state->chall,
+				   &lm_response,
+				   &nt_response,
+				   lm_key, 
+				   user_session_key,
+				   error_string);
+	
+	data_blob_free(&lm_response);
+
+	if (NT_STATUS_EQUAL(NT_STATUS_WRONG_PASSWORD, nt_status)) {
+		/* for 'long' passwords, the LM password is invalid */
+		if (break_which == NO_NT && !lm_good) {
+			return True;
+		}
+		return ((break_which == BREAK_NT) || (break_which == BREAK_BOTH));
+	}
+
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		return False;
+	}
+
+	if (break_which == NO_NT && !lm_good) {
+		printf("LM password is 'long' (> 14 chars and therefore invalid) but login did not fail!");
+		return False;
+	}
+
+	if (memcmp(lm_hash, lm_key, 
+		   sizeof(lm_key)) != 0) {
+		printf("LM Key does not match expectations!\n");
+		printf("lm_key:\n");
+		dump_data(1, (const char *)lm_key, 8);
+		printf("expected:\n");
+		dump_data(1, (const char *)lm_hash, 8);
+		pass = False;
+	}
+
+	switch (break_which) {
+	case NO_NT:
+	{
+		char lm_key_expected[16];
+		memcpy(lm_key_expected, lm_hash, 8);
+		memset(lm_key_expected+8, '\0', 8);
+		if (memcmp(lm_key_expected, user_session_key, 
+			   16) != 0) {
+			printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
+			printf("user_session_key:\n");
+			dump_data(1, (const char *)user_session_key, sizeof(user_session_key));
+			printf("expected:\n");
+			dump_data(1, (const char *)lm_key_expected, sizeof(lm_key_expected));
+			pass = False;
+		}
+		break;
+	}
+	default:
+		if (memcmp(session_key.data, user_session_key, 
+			   sizeof(user_session_key)) != 0) {
+			printf("NT Session Key does not match expectations!\n");
+			printf("user_session_key:\n");
+			dump_data(1, (const char *)user_session_key, 16);
+			printf("expected:\n");
+			dump_data(1, (const char *)session_key.data, session_key.length);
+			pass = False;
+		}
+	}
+        return pass;
+}
+
+/* 
+ * Test LM authentication, no NT response supplied
+ */
+
+static BOOL test_lm(struct samlogon_state *samlogon_state, char **error_string) 
+{
+
+	return test_lm_ntlm_broken(samlogon_state, NO_NT, error_string);
+}
+
+/* 
+ * Test the NTLM response only, no LM.
+ */
+
+static BOOL test_ntlm(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lm_ntlm_broken(samlogon_state, NO_LM, error_string);
+}
+
+/* 
+ * Test the NTLM response only, but in the LM field.
+ */
+
+static BOOL test_ntlm_in_lm(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	BOOL pass = True;
+	NTSTATUS nt_status;
+	DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
+
+	uint8_t lm_key[8];
+	uint8_t lm_hash[16];
+	uint8_t user_session_key[16];
+	
+	ZERO_STRUCT(user_session_key);
+
+	SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
+
+	E_deshash(samlogon_state->password, lm_hash); 
+
+	nt_status = check_samlogon(samlogon_state,
+				   BREAK_NONE,
+				   &samlogon_state->chall,
+				   &nt_response,
+				   NULL,
+				   lm_key, 
+				   user_session_key,
+				   error_string);
+	
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		return False;
+	}
+
+	if (memcmp(lm_hash, lm_key, 
+		   sizeof(lm_key)) != 0) {
+		printf("LM Key does not match expectations!\n");
+ 		printf("lm_key:\n");
+		dump_data(1, (const char *)lm_key, 8);
+		printf("expected:\n");
+		dump_data(1, (const char *)lm_hash, 8);
+		pass = False;
+	}
+	if (memcmp(lm_hash, user_session_key, 8) != 0) {
+		char lm_key_expected[16];
+		memcpy(lm_key_expected, lm_hash, 8);
+		memset(lm_key_expected+8, '\0', 8);
+		if (memcmp(lm_key_expected, user_session_key, 
+			   16) != 0) {
+			printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
+			printf("user_session_key:\n");
+			dump_data(1, (const char *)user_session_key, sizeof(user_session_key));
+			printf("expected:\n");
+			dump_data(1, (const char *)lm_key_expected, sizeof(lm_key_expected));
+			pass = False;
+		}
+	}
+        return pass;
+}
+
+/* 
+ * Test the NTLM response only, but in the both the NT and LM fields.
+ */
+
+static BOOL test_ntlm_in_both(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	BOOL pass = True;
+	BOOL lm_good;
+	NTSTATUS nt_status;
+	DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
+	DATA_BLOB session_key = data_blob_talloc(samlogon_state->mem_ctx, NULL, 16);
+
+	char lm_key[8];
+	char lm_hash[16];
+	char user_session_key[16];
+	char nt_hash[16];
+	
+	ZERO_STRUCT(lm_key);
+	ZERO_STRUCT(user_session_key);
+
+	SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, 
+		     nt_response.data);
+	E_md4hash(samlogon_state->password, (uint8_t *)nt_hash);
+	SMBsesskeygen_ntv1((const uint8_t *)nt_hash, 
+			   session_key.data);
+
+	lm_good = E_deshash(samlogon_state->password, (uint8_t *)lm_hash); 
+	if (!lm_good) {
+		ZERO_STRUCT(lm_hash);
+	}
+
+	nt_status = check_samlogon(samlogon_state,
+				   BREAK_NONE,
+				   &samlogon_state->chall,
+				   NULL, 
+				   &nt_response,
+				   lm_key, 
+				   user_session_key,
+				   error_string);
+	
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		return False;
+	}
+
+	if (memcmp(lm_hash, lm_key, 
+		   sizeof(lm_key)) != 0) {
+		printf("LM Key does not match expectations!\n");
+ 		printf("lm_key:\n");
+		dump_data(1, lm_key, 8);
+		printf("expected:\n");
+		dump_data(1, lm_hash, 8);
+		pass = False;
+	}
+	if (memcmp(session_key.data, user_session_key, 
+		   sizeof(user_session_key)) != 0) {
+		printf("NT Session Key does not match expectations!\n");
+ 		printf("user_session_key:\n");
+		dump_data(1, user_session_key, 16);
+ 		printf("expected:\n");
+		dump_data(1, (const char *)session_key.data, session_key.length);
+		pass = False;
+	}
+
+
+        return pass;
+}
+
+/* 
+ * Test the NTLMv2 and LMv2 responses
+ */
+
+static BOOL test_lmv2_ntlmv2_broken(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string) 
+{
+	BOOL pass = True;
+	NTSTATUS nt_status;
+	DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
+	DATA_BLOB lmv2_response = data_blob(NULL, 0);
+	DATA_BLOB lmv2_session_key = data_blob(NULL, 0);
+	DATA_BLOB ntlmv2_session_key = data_blob(NULL, 0);
+	DATA_BLOB names_blob = NTLMv2_generate_names_blob(samlogon_state->mem_ctx, lp_netbios_name(), lp_workgroup());
+
+	uint8_t lm_session_key[8];
+	uint8_t user_session_key[16];
+
+	ZERO_STRUCT(lm_session_key);
+	ZERO_STRUCT(user_session_key);
+	
+	/* TODO - test with various domain cases, and without domain */
+	if (!SMBNTLMv2encrypt(samlogon_state->account_name, samlogon_state->account_domain, 
+			      samlogon_state->password, &samlogon_state->chall,
+			      &names_blob,
+			      &lmv2_response, &ntlmv2_response, 
+			      &lmv2_session_key, &ntlmv2_session_key)) {
+		data_blob_free(&names_blob);
+		return False;
+	}
+	data_blob_free(&names_blob);
+
+	nt_status = check_samlogon(samlogon_state,
+				   break_which,
+				   &samlogon_state->chall,
+				   &lmv2_response,
+				   &ntlmv2_response,
+				   lm_session_key, 
+				   user_session_key,
+				   error_string);
+	
+	data_blob_free(&lmv2_response);
+	data_blob_free(&ntlmv2_response);
+
+
+	if (NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD)) {
+		return break_which == BREAK_BOTH;
+	}
+
+	switch (break_which) {
+	case NO_NT:
+		if (memcmp(lmv2_session_key.data, user_session_key, 
+			   sizeof(user_session_key)) != 0) {
+			printf("USER (LMv2) Session Key does not match expectations!\n");
+			printf("user_session_key:\n");
+			dump_data(1, (const char *)user_session_key, 16);
+			printf("expected:\n");
+			dump_data(1, (const char *)lmv2_session_key.data, ntlmv2_session_key.length);
+			pass = False;
+		}
+		if (memcmp(lmv2_session_key.data, lm_session_key, 
+			   sizeof(lm_session_key)) != 0) {
+			printf("LM (LMv2) Session Key does not match expectations!\n");
+			printf("lm_session_key:\n");
+			dump_data(1, (const char *)lm_session_key, 8);
+			printf("expected:\n");
+			dump_data(1, (const char *)lmv2_session_key.data, 8);
+			pass = False;
+		}
+		break;
+	default:
+		if (memcmp(ntlmv2_session_key.data, user_session_key, 
+			   sizeof(user_session_key)) != 0) {
+			printf("USER (NTLMv2) Session Key does not match expectations!\n");
+			printf("user_session_key:\n");
+			dump_data(1, (const char *)user_session_key, 16);
+			printf("expected:\n");
+			dump_data(1, (const char *)ntlmv2_session_key.data, ntlmv2_session_key.length);
+			pass = False;
+		}
+		if (memcmp(ntlmv2_session_key.data, lm_session_key, 
+			   sizeof(lm_session_key)) != 0) {
+			printf("LM (NTLMv2) Session Key does not match expectations!\n");
+			printf("lm_session_key:\n");
+			dump_data(1, (const char *)lm_session_key, 8);
+			printf("expected:\n");
+			dump_data(1, (const char *)ntlmv2_session_key.data, 8);
+			pass = False;
+		}
+	}
+
+        return pass;
+}
+
+/* 
+ * Test the NTLMv2 and LMv2 responses
+ */
+
+static BOOL test_lmv2_ntlmv2(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_NONE, error_string);
+}
+
+/* 
+ * Test the LMv2 response only
+ */
+
+static BOOL test_lmv2(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lmv2_ntlmv2_broken(samlogon_state, NO_NT, error_string);
+}
+
+/* 
+ * Test the NTLMv2 response only
+ */
+
+static BOOL test_ntlmv2(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lmv2_ntlmv2_broken(samlogon_state, NO_LM, error_string);
+}
+
+static BOOL test_lm_ntlm(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lm_ntlm_broken(samlogon_state, BREAK_NONE, error_string);
+}
+
+static BOOL test_ntlm_lm_broken(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lm_ntlm_broken(samlogon_state, BREAK_LM, error_string);
+}
+
+static BOOL test_ntlm_ntlm_broken(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lm_ntlm_broken(samlogon_state, BREAK_NT, error_string);
+}
+
+static BOOL test_lm_ntlm_both_broken(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lm_ntlm_broken(samlogon_state, BREAK_BOTH, error_string);
+}
+static BOOL test_ntlmv2_lmv2_broken(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_LM, error_string);
+}
+
+static BOOL test_ntlmv2_ntlmv2_broken(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_NT, error_string);
+}
+
+static BOOL test_ntlmv2_both_broken(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_BOTH, error_string);
+}
+
+/* 
+ * Test the NTLM2 response (extra challenge in LM feild)
+ *
+ * This test is the same as the 'break LM' test, but checks that the
+ * server implements NTLM2 session security in the right place
+ * (NETLOGON is the wrong place).
+ */
+
+static BOOL test_ntlm2(struct samlogon_state *samlogon_state, char **error_string) 
+{
+	BOOL pass = True;
+	NTSTATUS nt_status;
+	DATA_BLOB lm_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
+	DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
+
+	uint8_t lm_key[8];
+	uint8_t nt_hash[16];
+	uint8_t lm_hash[16];
+	uint8_t nt_key[16];
+	uint8_t user_session_key[16];
+	uint8_t expected_user_session_key[16];
+	uint8_t session_nonce_hash[16];
+	uint8_t client_chall[8];
+	
+	struct MD5Context md5_session_nonce_ctx;
+	HMACMD5Context hmac_ctx;
+			
+	ZERO_STRUCT(user_session_key);
+	ZERO_STRUCT(lm_key);
+	generate_random_buffer(client_chall, 8);
+	
+	MD5Init(&md5_session_nonce_ctx);
+	MD5Update(&md5_session_nonce_ctx, samlogon_state->chall.data, 8);
+	MD5Update(&md5_session_nonce_ctx, client_chall, 8);
+	MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
+	
+	E_md4hash(samlogon_state->password, (uint8_t *)nt_hash);
+	E_deshash(samlogon_state->password, (uint8_t *)lm_hash);
+	SMBsesskeygen_ntv1((const uint8_t *)nt_hash, 
+			   nt_key);
+
+	SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
+
+	memcpy(lm_response.data, session_nonce_hash, 8);
+	memset(lm_response.data + 8, 0, 16);
+
+	hmac_md5_init_rfc2104(nt_key, 16, &hmac_ctx);
+	hmac_md5_update(samlogon_state->chall.data, 8, &hmac_ctx);
+	hmac_md5_update(client_chall, 8, &hmac_ctx);
+	hmac_md5_final(expected_user_session_key, &hmac_ctx);
+
+	nt_status = check_samlogon(samlogon_state,
+				   BREAK_NONE,
+				   &samlogon_state->chall,
+				   &lm_response,
+				   &nt_response,
+				   lm_key, 
+				   user_session_key,
+				   error_string);
+	
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		return False;
+	}
+
+	if (memcmp(lm_hash, lm_key, 
+		   sizeof(lm_key)) != 0) {
+		printf("LM Key does not match expectations!\n");
+ 		printf("lm_key:\n");
+		dump_data(1, (const char *)lm_key, 8);
+		printf("expected:\n");
+		dump_data(1, (const char *)lm_hash, 8);
+		pass = False;
+	}
+	if (memcmp(nt_key, user_session_key, 16) != 0) {
+		printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
+		printf("user_session_key:\n");
+		dump_data(1, (const char *)user_session_key, sizeof(user_session_key));
+		printf("expected:\n");
+		dump_data(1, (const char *)nt_key, sizeof(nt_key));
+		pass = False;
+	}
+        return pass;
+}
+
+static BOOL test_plaintext(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
+{
+	NTSTATUS nt_status;
+	DATA_BLOB nt_response = data_blob(NULL, 0);
+	DATA_BLOB lm_response = data_blob(NULL, 0);
+	char *password;
+	char *dospw;
+	void *unicodepw;
+
+	uint8_t user_session_key[16];
+	uint8_t lm_key[16];
+	static const uint8_t zeros[8];
+	DATA_BLOB chall = data_blob_talloc(samlogon_state->mem_ctx, zeros, sizeof(zeros));
+
+	ZERO_STRUCT(user_session_key);
+	
+	if ((push_ucs2_talloc(samlogon_state->mem_ctx, &unicodepw, 
+			      samlogon_state->password)) == -1) {
+		DEBUG(0, ("push_ucs2_allocate failed!\n"));
+		exit(1);
+	}
+
+	nt_response = data_blob_talloc(samlogon_state->mem_ctx, unicodepw, strlen_m(samlogon_state->password)*2);
+
+	password = strupper_talloc(samlogon_state->mem_ctx, samlogon_state->password);
+
+	if ((convert_string_talloc(samlogon_state->mem_ctx, CH_UNIX, 
+				   CH_DOS, password,
+				   strlen(password)+1, 
+				   (void**)&dospw)) == -1) {
+		DEBUG(0, ("convert_string_talloc failed!\n"));
+		exit(1);
+	}
+
+	lm_response = data_blob_talloc(samlogon_state->mem_ctx, dospw, strlen(dospw));
+
+	nt_status = check_samlogon(samlogon_state,
+				   break_which,
+				   &chall,
+				   &lm_response,
+				   &nt_response,
+				   lm_key, 
+				   user_session_key,
+				   error_string);
+	
+ 	if (!NT_STATUS_IS_OK(nt_status)) {
+		return break_which == BREAK_NT;
+	}
+
+	return True;
+}
+
+static BOOL test_plaintext_none_broken(struct samlogon_state *samlogon_state, 
+				       char **error_string) {
+	return test_plaintext(samlogon_state, BREAK_NONE, error_string);
+}
+
+static BOOL test_plaintext_lm_broken(struct samlogon_state *samlogon_state, 
+				     char **error_string) {
+	return test_plaintext(samlogon_state, BREAK_LM, error_string);
+}
+
+static BOOL test_plaintext_nt_broken(struct samlogon_state *samlogon_state, 
+				     char **error_string) {
+	return test_plaintext(samlogon_state, BREAK_NT, error_string);
+}
+
+static BOOL test_plaintext_nt_only(struct samlogon_state *samlogon_state, 
+				   char **error_string) {
+	return test_plaintext(samlogon_state, NO_LM, error_string);
+}
+
+static BOOL test_plaintext_lm_only(struct samlogon_state *samlogon_state, 
+				   char **error_string) {
+	return test_plaintext(samlogon_state, NO_NT, error_string);
+}
+
+/* 
+   Tests:
+   
+   - LM only
+   - NT and LM		   
+   - NT
+   - NT in LM field
+   - NT in both fields
+   - NTLMv2
+   - NTLMv2 and LMv2
+   - LMv2
+   - plaintext tests (in challenge-response fields)
+  
+   check we get the correct session key in each case
+   check what values we get for the LM session key
+   
+*/
+
+static const struct ntlm_tests {
+	BOOL (*fn)(struct samlogon_state *, char **);
+	const char *name;
+	BOOL expect_fail;
+} test_table[] = {
+	{test_lm, "LM", False},
+	{test_lm_ntlm, "LM and NTLM", False},
+	{test_lm_ntlm_both_broken, "LM and NTLM, both broken", False},
+	{test_ntlm, "NTLM", False},
+	{test_ntlm_in_lm, "NTLM in LM", False},
+	{test_ntlm_in_both, "NTLM in both", False},
+	{test_ntlmv2, "NTLMv2", False},
+	{test_lmv2_ntlmv2, "NTLMv2 and LMv2", False},
+	{test_lmv2, "LMv2", False},
+	{test_ntlmv2_lmv2_broken, "NTLMv2 and LMv2, LMv2 broken", False},
+	{test_ntlmv2_ntlmv2_broken, "NTLMv2 and LMv2, NTLMv2 broken", False},
+	{test_ntlmv2_both_broken, "NTLMv2 and LMv2, both broken", False},
+	{test_ntlm_lm_broken, "NTLM and LM, LM broken", False},
+	{test_ntlm_ntlm_broken, "NTLM and LM, NTLM broken", False},
+	{test_ntlm2, "NTLM2 (NTLMv2 session security)", False},
+	{test_plaintext_none_broken, "Plaintext", True},
+	{test_plaintext_lm_broken, "Plaintext LM broken", True},
+	{test_plaintext_nt_broken, "Plaintext NT broken", True},
+	{test_plaintext_nt_only, "Plaintext NT only", True},
+	{test_plaintext_lm_only, "Plaintext LM only", True},
+	{NULL, NULL}
+};
+
+/*
+  try a netlogon SamLogon
+*/
+static BOOL test_SamLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx, 
+			  struct creds_CredentialState *creds)
+{
+	int i, v, l, f;
+	BOOL ret = True;
+	int validation_levels[] = {2,3,6};
+	int logon_levels[] = { 2, 6 };
+	int function_levels[] = { 
+		DCERPC_NETR_LOGONSAMLOGON,
+		DCERPC_NETR_LOGONSAMLOGONWITHFLAGS };
+	struct samlogon_state samlogon_state;
+	
+	printf("testing netr_LogonSamLogon and netr_LogonSamLogonWithFlags\n");
+	
+	samlogon_state.mem_ctx = mem_ctx;
+	samlogon_state.account_name = lp_parm_string(-1, "torture", "username");
+	samlogon_state.account_domain = lp_parm_string(-1, "torture", "userdomain");
+	samlogon_state.password = lp_parm_string(-1, "torture", "password");
+	samlogon_state.p = p;
+	samlogon_state.creds = creds;
+
+	samlogon_state.chall = data_blob_talloc(mem_ctx, NULL, 8);
+
+	generate_random_buffer(samlogon_state.chall.data, 8);
+	samlogon_state.r_flags.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
+	samlogon_state.r_flags.in.workstation = TEST_MACHINE_NAME;
+	samlogon_state.r_flags.in.credential = &samlogon_state.auth;
+	samlogon_state.r_flags.in.return_authenticator = &samlogon_state.auth2;
+	samlogon_state.r_flags.in.flags = 0;
+
+	samlogon_state.r.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
+	samlogon_state.r.in.workstation = TEST_MACHINE_NAME;
+	samlogon_state.r.in.credential = &samlogon_state.auth;
+	samlogon_state.r.in.return_authenticator = &samlogon_state.auth2;
+
+	for (i=0; test_table[i].fn; i++) {
+		for (v=0;v<ARRAY_SIZE(validation_levels);v++) {
+			for (l=0;l<ARRAY_SIZE(logon_levels);l++) {
+				for (f=0;f<ARRAY_SIZE(function_levels);f++) {
+					char *error_string = NULL;
+					samlogon_state.function_level = function_levels[f];
+					samlogon_state.r.in.validation_level = validation_levels[v];
+					samlogon_state.r.in.logon_level = logon_levels[l];
+					samlogon_state.r_flags.in.validation_level = validation_levels[v];
+					samlogon_state.r_flags.in.logon_level = logon_levels[l];
+					if (!test_table[i].fn(&samlogon_state, &error_string)) {
+						printf("Testing '%s' at validation level %d, logon level %d, function %d: \n", 
+						       test_table[i].name, validation_levels[v], 
+						       logon_levels[l], function_levels[f]);
+						
+						if (test_table[i].expect_fail) {
+							printf(" failed (expected, test incomplete): %s\n", error_string);
+						} else {
+							printf(" failed: %s\n", error_string);
+							ret = False;
+						}
+						SAFE_FREE(error_string);
+					}
+				}
+			}
+		}
+	}
+
+	return ret;
+}
+
+/*
+  test an ADS style interactive domain logon
+*/
+static BOOL test_InteractiveLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
+				  struct creds_CredentialState *creds)
+{
+	NTSTATUS status;
+	struct netr_LogonSamLogonWithFlags r;
+	struct netr_Authenticator a, ra;
+	struct netr_PasswordInfo pinfo;
+	const char *plain_pass;
+
+	ZERO_STRUCT(a);
+	ZERO_STRUCT(r);
+	ZERO_STRUCT(ra);
+
+	creds_client_authenticator(creds, &a);
+
+	r.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
+	r.in.workstation = TEST_MACHINE_NAME;
+	r.in.credential = &a;
+	r.in.return_authenticator = &ra;
+	r.in.logon_level = 5;
+	r.in.logon.password = &pinfo;
+	r.in.validation_level = 6;
+	r.in.flags = 0;
+
+	pinfo.identity_info.domain_name.string = lp_parm_string(-1, "torture", "userdomain");
+	pinfo.identity_info.parameter_control = 0;
+	pinfo.identity_info.logon_id_low = 0;
+	pinfo.identity_info.logon_id_high = 0;
+	pinfo.identity_info.account_name.string = lp_parm_string(-1, "torture", "username");
+	pinfo.identity_info.workstation.string = TEST_MACHINE_NAME;
+
+	plain_pass = lp_parm_string(-1, "torture", "password");
+
+	E_deshash(plain_pass, pinfo.lmpassword.hash);
+	E_md4hash(plain_pass, pinfo.ntpassword.hash);
+
+	if (creds->negotiate_flags) {
+		creds_arcfour_crypt(creds, pinfo.lmpassword.hash, 16);
+		creds_arcfour_crypt(creds, pinfo.ntpassword.hash, 16);
+	} else {
+		creds_des_encrypt(creds, &pinfo.lmpassword);
+		creds_des_encrypt(creds, &pinfo.ntpassword);
+	}
+
+	printf("Testing netr_LogonSamLogonWithFlags\n");
+
+	status = dcerpc_netr_LogonSamLogonWithFlags(p, mem_ctx, &r);
+	if (!NT_STATUS_IS_OK(status)) {
+		printf("netr_LogonSamLogonWithFlags - %s\n", nt_errstr(status));
+		return False;
+	}
+
+	if (!creds_client_check(creds, &r.out.return_authenticator->cred)) {
+		printf("Credential chaining failed\n");
+		return False;
+	}
+
+	return True;
+}
+
+
+
+BOOL torture_rpc_samlogon(void)
+{
+        NTSTATUS status;
+        struct dcerpc_pipe *p;
+	TALLOC_CTX *mem_ctx;
+	BOOL ret = True;
+	void *join_ctx;
+	const char *machine_pass;
+
+	struct creds_CredentialState creds;
+
+	mem_ctx = talloc_init("torture_rpc_netlogon");
+
+	join_ctx = torture_join_domain(TEST_MACHINE_NAME, lp_workgroup(), ACB_SVRTRUST, 
+				       &machine_pass);
+	if (!join_ctx) {
+		printf("Failed to join as BDC\n");
+		return False;
+	}
+
+	status = torture_rpc_connection(&p, 
+					DCERPC_NETLOGON_NAME,
+					DCERPC_NETLOGON_UUID,
+					DCERPC_NETLOGON_VERSION);
+	if (!NT_STATUS_IS_OK(status)) {
+		return False;
+	}
+
+
+	if (!test_SetupCredentials(p, mem_ctx, 
+				    TEST_MACHINE_NAME, machine_pass, &creds)) {
+		ret = False;
+	}
+
+	if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	if (!test_SamLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	if (!test_SetupCredentials2(p, mem_ctx, NETLOGON_NEG_AUTH2_FLAGS,
+				    TEST_MACHINE_NAME, machine_pass, &creds)) {
+		return False;
+	}
+
+	if (!test_SamLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	if (!test_SetupCredentials3(p, mem_ctx, NETLOGON_NEG_AUTH2_FLAGS,
+				    TEST_MACHINE_NAME, machine_pass, &creds)) {
+		return False;
+	}
+
+	if (!test_SamLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	if (!test_SetupCredentials3(p, mem_ctx, NETLOGON_NEG_AUTH2_ADS_FLAGS,
+				    TEST_MACHINE_NAME, machine_pass, &creds)) {
+		return False;
+	}
+
+	if (!test_SamLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
+		ret = False;
+	}
+
+	talloc_destroy(mem_ctx);
+
+	torture_rpc_close(p);
+
+	torture_leave_domain(join_ctx);
+
+	return ret;
+}