1 files changed, 61 insertions, 345 deletions

diff --git a/source4/auth/auth_sam.c b/source4/auth/auth_sam.c
index 35635ea474..028fda74fe 100644
--- a/source4/auth/auth_sam.c
+++ b/source4/auth/auth_sam.c
@@ -3,7 +3,8 @@
    Password and authentication handling
    Copyright (C) Andrew Tridgell              1992-2000
    Copyright (C) Luke Kenneth Casson Leighton 1996-2000
-   Copyright (C) Andrew Bartlett              2001
+   Copyright (C) Andrew Bartlett              2001-2003
+   Copyright (C) Gerald Carter                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
@@ -26,290 +27,50 @@
 #define DBGC_CLASS DBGC_AUTH
 
 /****************************************************************************
-core of smb password checking routine.
-****************************************************************************/
-static BOOL smb_pwd_check_ntlmv1(DATA_BLOB nt_response,
-				 const uchar *part_passwd,
-				 DATA_BLOB sec_blob,
-				 uint8 user_sess_key[16])
-{
-	/* Finish the encryption of part_passwd. */
-	uchar p24[24];
-	
-	if (part_passwd == NULL) {
-		DEBUG(10,("No password set - DISALLOWING access\n"));
-		/* No password set - always false ! */
-		return False;
-	}
-	
-	if (sec_blob.length != 8) {
-		DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect challenge size (%d)\n", sec_blob.length));
-		return False;
-	}
-	
-	if (nt_response.length != 24) {
-		DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect password length (%d)\n", nt_response.length));
-		return False;
-	}
-
-	SMBOWFencrypt(part_passwd, sec_blob.data, p24);
-	if (user_sess_key != NULL)
-	{
-		SMBsesskeygen_ntv1(part_passwd, NULL, user_sess_key);
-	}
-	
-	
-	
-#if DEBUG_PASSWORD
-	DEBUG(100,("Part password (P16) was |"));
-	dump_data(100, part_passwd, 16);
-	DEBUG(100,("Password from client was |"));
-	dump_data(100, nt_response.data, nt_response.length);
-	DEBUG(100,("Given challenge was |"));
-	dump_data(100, sec_blob.data, sec_blob.length);
-	DEBUG(100,("Value from encryption was |"));
-	dump_data(100, p24, 24);
-#endif
-  return (memcmp(p24, nt_response.data, 24) == 0);
-}
-
-
-/****************************************************************************
-core of smb password checking routine. (NTLMv2, LMv2)
-
-Note:  The same code works with both NTLMv2 and LMv2.
-****************************************************************************/
-static BOOL smb_pwd_check_ntlmv2(const DATA_BLOB ntv2_response,
-				 const uchar *part_passwd,
-				 const DATA_BLOB sec_blob,
-				 const char *user, const char *domain,
-				 uint8 user_sess_key[16])
-{
-	/* Finish the encryption of part_passwd. */
-	uchar kr[16];
-	uchar value_from_encryption[16];
-	uchar client_response[16];
-	DATA_BLOB client_key_data;
-
-	if (part_passwd == NULL)
-	{
-		DEBUG(10,("No password set - DISALLOWING access\n"));
-		/* No password set - always False */
-		return False;
-	}
-
-	if (ntv2_response.length < 16) {
-		/* We MUST have more than 16 bytes, or the stuff below will go
-		   crazy... */
-		DEBUG(0, ("smb_pwd_check_ntlmv2: incorrect password length (%d)\n", 
-			  ntv2_response.length));
-		return False;
-	}
-
-	client_key_data = data_blob(ntv2_response.data+16, ntv2_response.length-16);
-	/* 
-	   todo:  should we be checking this for anything?  We can't for LMv2, 
-	   but for NTLMv2 it is meant to contain the current time etc.
-	*/
-
-	memcpy(client_response, ntv2_response.data, sizeof(client_response));
-
-	if (!ntv2_owf_gen(part_passwd, user, domain, kr)) {
-		return False;
-	}
-
-	SMBOWFencrypt_ntv2(kr, &sec_blob, &client_key_data, value_from_encryption);
-	if (user_sess_key != NULL)
-	{
-		SMBsesskeygen_ntv2(kr, value_from_encryption, user_sess_key);
-	}
-
-#if DEBUG_PASSWORD
-	DEBUG(100,("Part password (P16) was |"));
-	dump_data(100, part_passwd, 16);
-	DEBUG(100,("Password from client was |"));
-	dump_data(100, ntv2_response.data, ntv2_response.length);
-	DEBUG(100,("Variable data from client was |"));
-	dump_data(100, client_key_data.data, client_key_data.length);
-	DEBUG(100,("Given challenge was |"));
-	dump_data(100, sec_blob.data, sec_blob.length);
-	DEBUG(100,("Value from encryption was |"));
-	dump_data(100, value_from_encryption, 16);
-#endif
-	data_blob_clear_free(&client_key_data);
-	return (memcmp(value_from_encryption, client_response, 16) == 0);
-}
-
-
-/****************************************************************************
  Do a specific test for an smb password being correct, given a smb_password and
  the lanman and NT responses.
 ****************************************************************************/
+
 static NTSTATUS sam_password_ok(const struct auth_context *auth_context,
 				TALLOC_CTX *mem_ctx,
 				SAM_ACCOUNT *sampass, 
 				const auth_usersupplied_info *user_info, 
-				uint8 user_sess_key[16])
+				DATA_BLOB *user_sess_key, 
+				DATA_BLOB *lm_sess_key)
 {
 	uint16 acct_ctrl;
-	const uint8 *nt_pw, *lm_pw;
-	uint32 auth_flags;
+	const uint8 *lm_pw, *nt_pw;
+	const char *username = pdb_get_username(sampass);
 
 	acct_ctrl = pdb_get_acct_ctrl(sampass);
-	if (acct_ctrl & ACB_PWNOTREQ) 
-	{
-		if (lp_null_passwords()) 
-		{
-			DEBUG(3,("Account for user '%s' has no password and null passwords are allowed.\n", pdb_get_username(sampass)));
-			return(NT_STATUS_OK);
-		} 
-		else 
-		{
-			DEBUG(3,("Account for user '%s' has no password and null passwords are NOT allowed.\n", pdb_get_username(sampass)));
-			return(NT_STATUS_LOGON_FAILURE);
-		}		
-	}
-
-	auth_flags = user_info->auth_flags;
-
-	if (IS_SAM_DEFAULT(sampass, PDB_NTPASSWD)) {
-		DEBUG(3,("sam_password_ok: NO NT password stored for user %s.\n", 
-			 pdb_get_username(sampass)));
-		/* No return, we want to check the LM hash below in this case */
-		auth_flags &= (~(AUTH_FLAG_NTLMv2_RESP |  AUTH_FLAG_NTLM_RESP));
-	}
-	
-	if (auth_flags & AUTH_FLAG_NTLMv2_RESP) {
-		nt_pw = pdb_get_nt_passwd(sampass);
-		/* We have the NT MD4 hash challenge available - see if we can
-		   use it (ie. does it exist in the smbpasswd file).
-		*/
-		DEBUG(4,("sam_password_ok: Checking NTLMv2 password with domain [%s]\n", user_info->client_domain.str));
-		if (smb_pwd_check_ntlmv2( user_info->nt_resp, 
-					  nt_pw, auth_context->challenge, 
-					  user_info->smb_name.str, 
-					  user_info->client_domain.str,
-					  user_sess_key))
-		{
-			return NT_STATUS_OK;
-		}
-
-		DEBUG(4,("sam_password_ok: Checking NTLMv2 password without a domain\n"));
-		if (smb_pwd_check_ntlmv2( user_info->nt_resp, 
-					  nt_pw, auth_context->challenge, 
-					  user_info->smb_name.str, 
-					  "",
-					  user_sess_key))
-		{
+	if (acct_ctrl & ACB_PWNOTREQ) {
+		if (lp_null_passwords()) {
+			DEBUG(3,("Account for user '%s' has no password and null passwords are allowed.\n", username));
 			return NT_STATUS_OK;
 		} else {
-			DEBUG(3,("sam_password_ok: NTLMv2 password check failed\n"));
-			return NT_STATUS_WRONG_PASSWORD;
-		}
-	} else if (auth_flags & AUTH_FLAG_NTLM_RESP) {
-		if (lp_ntlm_auth()) {		
-			nt_pw = pdb_get_nt_passwd(sampass);
-			/* We have the NT MD4 hash challenge available - see if we can
-			   use it (ie. does it exist in the smbpasswd file).
-			*/
-			DEBUG(4,("sam_password_ok: Checking NT MD4 password\n"));
-			if (smb_pwd_check_ntlmv1(user_info->nt_resp, 
-						 nt_pw, auth_context->challenge,
-						 user_sess_key)) 
-			{
-				return NT_STATUS_OK;
-			} else {
-				DEBUG(3,("sam_password_ok: NT MD4 password check failed for user %s\n",pdb_get_username(sampass)));
-				return NT_STATUS_WRONG_PASSWORD;
-			}
-		} else {
-			DEBUG(2,("sam_password_ok: NTLMv1 passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));			
-			/* no return, becouse we might pick up LMv2 in the LM feild */
-		}
+			DEBUG(3,("Account for user '%s' has no password and null passwords are NOT allowed.\n", username));
+			return NT_STATUS_LOGON_FAILURE;
+		}		
 	}
-	
-	if (auth_flags & AUTH_FLAG_LM_RESP) {
-		if (user_info->lm_resp.length != 24) {
-			DEBUG(2,("sam_password_ok: invalid LanMan password length (%d) for user %s\n", 
-				 user_info->nt_resp.length, pdb_get_username(sampass)));		
-		}
-		
-		if (!lp_lanman_auth()) {
-			DEBUG(3,("sam_password_ok: Lanman passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));
-		} else if (IS_SAM_DEFAULT(sampass, PDB_LMPASSWD)) {
-			DEBUG(3,("sam_password_ok: NO LanMan password set for user %s (and no NT password supplied)\n",pdb_get_username(sampass)));
-		} else {
-			lm_pw = pdb_get_lanman_passwd(sampass);
-			
-			DEBUG(4,("sam_password_ok: Checking LM password\n"));
-			if (smb_pwd_check_ntlmv1(user_info->lm_resp, 
-						 lm_pw, auth_context->challenge,
-						 user_sess_key)) 
-			{
-				return NT_STATUS_OK;
-			}
-		}
 
-		if (IS_SAM_DEFAULT(sampass, PDB_NTPASSWD)) {
-			DEBUG(4,("sam_password_ok: LM password check failed for user, no NT password %s\n",pdb_get_username(sampass)));
-			return NT_STATUS_WRONG_PASSWORD;
-		} 
-		
-		nt_pw = pdb_get_nt_passwd(sampass);
-
-		/* This is for 'LMv2' authentication.  almost NTLMv2 but limited to 24 bytes.
-		   - related to Win9X, legacy NAS pass-though authentication
-		*/
-		DEBUG(4,("sam_password_ok: Checking LMv2 password with domain %s\n", user_info->client_domain.str));
-		if (smb_pwd_check_ntlmv2( user_info->lm_resp, 
-					  nt_pw, auth_context->challenge, 
-					  user_info->smb_name.str, 
-					  user_info->client_domain.str,
-					  user_sess_key))
-		{
-			return NT_STATUS_OK;
-		}
-
-		DEBUG(4,("sam_password_ok: Checking LMv2 password without a domain\n"));
-		if (smb_pwd_check_ntlmv2( user_info->lm_resp, 
-					  nt_pw, auth_context->challenge, 
-					  user_info->smb_name.str, 
-					  "",
-					  user_sess_key))
-		{
-			return NT_STATUS_OK;
-		}
+	lm_pw = pdb_get_lanman_passwd(sampass);
+	nt_pw = pdb_get_nt_passwd(sampass);
 
-		/* Apparently NT accepts NT responses in the LM field
-		   - I think this is related to Win9X pass-though authentication
-		*/
-		DEBUG(4,("sam_password_ok: Checking NT MD4 password in LM field\n"));
-		if (lp_ntlm_auth()) 
-		{
-			if (smb_pwd_check_ntlmv1(user_info->lm_resp, 
-						 nt_pw, auth_context->challenge,
-						 user_sess_key)) 
-			{
-				return NT_STATUS_OK;
-			}
-			DEBUG(3,("sam_password_ok: LM password, NT MD4 password in LM field and LMv2 failed for user %s\n",pdb_get_username(sampass)));
-			return NT_STATUS_WRONG_PASSWORD;
-		} else {
-			DEBUG(3,("sam_password_ok: LM password and LMv2 failed for user %s, and NT MD4 password in LM field not permitted\n",pdb_get_username(sampass)));
-			return NT_STATUS_WRONG_PASSWORD;
-		}
-			
-	}
-		
-	/* Should not be reached, but if they send nothing... */
-	DEBUG(3,("sam_password_ok: NEITHER LanMan nor NT password supplied for user %s\n",pdb_get_username(sampass)));
-	return NT_STATUS_WRONG_PASSWORD;
+	return ntlm_password_check(mem_ctx, &auth_context->challenge, 
+				   &user_info->lm_resp, &user_info->nt_resp, 
+				   &user_info->lm_interactive_pwd, &user_info->nt_interactive_pwd,
+				   username, 
+				   user_info->smb_name.str, 
+				   user_info->client_domain.str, 
+				   lm_pw, nt_pw, user_sess_key, lm_sess_key);
 }
 
+
 /****************************************************************************
  Do a specific test for a SAM_ACCOUNT being vaild for this connection 
  (ie not disabled, expired and the like).
 ****************************************************************************/
+
 static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
 			       SAM_ACCOUNT *sampass, 
 			       const auth_usersupplied_info *user_info)
@@ -322,16 +83,22 @@ static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
 
 	/* Quit if the account was disabled. */
 	if (acct_ctrl & ACB_DISABLED) {
-		DEBUG(1,("Account for user '%s' was disabled.\n", pdb_get_username(sampass)));
+		DEBUG(1,("sam_account_ok: Account for user '%s' was disabled.\n", pdb_get_username(sampass)));
 		return NT_STATUS_ACCOUNT_DISABLED;
 	}
 
+	/* Quit if the account was locked out. */
+	if (acct_ctrl & ACB_AUTOLOCK) {
+		DEBUG(1,("sam_account_ok: Account for user %s was locked out.\n", pdb_get_username(sampass)));
+		return NT_STATUS_ACCOUNT_LOCKED_OUT;
+	}
+
 	/* Test account expire time */
 	
 	kickoff_time = pdb_get_kickoff_time(sampass);
 	if (kickoff_time != 0 && time(NULL) > kickoff_time) {
-		DEBUG(1,("Account for user '%s' has expried.\n", pdb_get_username(sampass)));
-		DEBUG(3,("Account expired at '%ld' unix time.\n", (long)kickoff_time));
+		DEBUG(1,("sam_account_ok: Account for user '%s' has expired.\n", pdb_get_username(sampass)));
+		DEBUG(3,("sam_account_ok: Account expired at '%ld' unix time.\n", (long)kickoff_time));
 		return NT_STATUS_ACCOUNT_EXPIRED;
 	}
 
@@ -341,14 +108,14 @@ static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
 
 		/* check for immediate expiry "must change at next logon" */
 		if (must_change_time == 0 && last_set_time != 0) {
-			DEBUG(1,("Account for user '%s' password must change!.\n", pdb_get_username(sampass)));
+			DEBUG(1,("sam_account_ok: Account for user '%s' password must change!.\n", pdb_get_username(sampass)));
 			return NT_STATUS_PASSWORD_MUST_CHANGE;
 		}
 
 		/* check for expired password */
 		if (must_change_time < time(NULL) && must_change_time != 0) {
-			DEBUG(1,("Account for user '%s' password expired!.\n", pdb_get_username(sampass)));
-			DEBUG(1,("Password expired at '%s' (%ld) unix time.\n", timestring(mem_ctx, must_change_time), (long)must_change_time));
+			DEBUG(1,("sam_account_ok: Account for user '%s' password expired!.\n", pdb_get_username(sampass)));
+			DEBUG(1,("sam_account_ok: Password expired at '%s' (%ld) unix time.\n", timestring(mem_ctx, must_change_time), (long)must_change_time));
 			return NT_STATUS_PASSWORD_EXPIRED;
 		}
 	}
@@ -356,8 +123,8 @@ static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
 	/* Test workstation. Workstation list is comma separated. */
 
 	workstation_list = talloc_strdup(mem_ctx, pdb_get_workstations(sampass));
-
-	if (!workstation_list) return NT_STATUS_NO_MEMORY;
+	if (!workstation_list)
+		return NT_STATUS_NO_MEMORY;
 
 	if (*workstation_list) {
 		BOOL invalid_ws = True;
@@ -366,7 +133,7 @@ static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
 		fstring tok;
 			
 		while (next_token(&s, tok, ",", sizeof(tok))) {
-			DEBUG(10,("checking for workstation match %s and %s (len=%d)\n",
+			DEBUG(10,("sam_account_ok: checking for workstation match %s and %s (len=%d)\n",
 				  tok, user_info->wksta_name.str, user_info->wksta_name.len));
 			if(strequal(tok, user_info->wksta_name.str)) {
 				invalid_ws = False;
@@ -396,7 +163,6 @@ static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
 	return NT_STATUS_OK;
 }
 
-
 /****************************************************************************
 check if a username/password is OK assuming the password is a 24 byte
 SMB hash supplied in the user_info structure
@@ -412,14 +178,14 @@ static NTSTATUS check_sam_security(const struct auth_context *auth_context,
 	SAM_ACCOUNT *sampass=NULL;
 	BOOL ret;
 	NTSTATUS nt_status;
-	uint8 user_sess_key[16];
-	const uint8* lm_hash;
+	DATA_BLOB user_sess_key = data_blob(NULL, 0);
+	DATA_BLOB lm_sess_key = data_blob(NULL, 0);
 
 	if (!user_info || !auth_context) {
 		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	/* Can't use the talloc version here, becouse the returned struct gets
+	/* Can't use the talloc version here, because the returned struct gets
 	   kept on the server_info */
 	if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(&sampass))) {
 		return nt_status;
@@ -431,21 +197,27 @@ static NTSTATUS check_sam_security(const struct auth_context *auth_context,
 	ret = pdb_getsampwnam(sampass, user_info->internal_username.str);
 	unbecome_root();
 
-	if (ret == False)
-	{
-		DEBUG(3,("Couldn't find user '%s' in passdb file.\n", user_info->internal_username.str));
+	if (ret == False) {
+		DEBUG(3,("check_sam_security: Couldn't find user '%s' in passdb file.\n", user_info->internal_username.str));
 		pdb_free_sam(&sampass);
 		return NT_STATUS_NO_SUCH_USER;
 	}
 
-	nt_status = sam_account_ok(mem_ctx, sampass, user_info);
+	/* Quit if the account was locked out. */
+	if (pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK) {
+		DEBUG(3,("check_sam_security: Account for user %s was locked out.\n", pdb_get_username(sampass)));
+		return NT_STATUS_ACCOUNT_LOCKED_OUT;
+	}
+
+	nt_status = sam_password_ok(auth_context, mem_ctx, sampass, 
+				    user_info, &user_sess_key, &lm_sess_key);
 	
 	if (!NT_STATUS_IS_OK(nt_status)) {
 		pdb_free_sam(&sampass);
 		return nt_status;
 	}
 
-	nt_status = sam_password_ok(auth_context, mem_ctx, sampass, user_info, user_sess_key);
+	nt_status = sam_account_ok(mem_ctx, sampass, user_info);
 
 	if (!NT_STATUS_IS_OK(nt_status)) {
 		pdb_free_sam(&sampass);
@@ -457,25 +229,21 @@ static NTSTATUS check_sam_security(const struct auth_context *auth_context,
 		return nt_status;
 	}
 
-	lm_hash = pdb_get_lanman_passwd((*server_info)->sam_account);
-	if (lm_hash) {
-		memcpy((*server_info)->first_8_lm_hash, lm_hash, 8);
-	}
-	
-	memcpy((*server_info)->session_key, user_sess_key, sizeof(user_sess_key));
+	(*server_info)->user_session_key = user_sess_key;
+	(*server_info)->lm_session_key = lm_sess_key;
 
 	return nt_status;
 }
 
 /* module initialisation */
-static NTSTATUS auth_init_sam(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
+static NTSTATUS auth_init_sam_ignoredomain(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
 {
 	if (!make_auth_methods(auth_context, auth_method)) {
 		return NT_STATUS_NO_MEMORY;
 	}
 
 	(*auth_method)->auth = check_sam_security;	
-	(*auth_method)->name = "sam";
+	(*auth_method)->name = "sam_ignoredomain";
 	return NT_STATUS_OK;
 }
 
@@ -509,57 +277,14 @@ static NTSTATUS check_samstrict_security(const struct auth_context *auth_context
 }
 
 /* module initialisation */
-static NTSTATUS auth_init_samstrict(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
+static NTSTATUS auth_init_sam(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
 {
 	if (!make_auth_methods(auth_context, auth_method)) {
 		return NT_STATUS_NO_MEMORY;
 	}
 
 	(*auth_method)->auth = check_samstrict_security;
-	(*auth_method)->name = "samstrict";
-	return NT_STATUS_OK;
-}
-
-/****************************************************************************
-Check SAM security (above) but with a few extra checks if we're a DC.
-****************************************************************************/
-
-static NTSTATUS check_samstrict_dc_security(const struct auth_context *auth_context,
-					 void *my_private_data, 
-					 TALLOC_CTX *mem_ctx,
-					 const auth_usersupplied_info *user_info, 
-					 auth_serversupplied_info **server_info)
-{
-
-	if (!user_info || !auth_context) {
-		return NT_STATUS_LOGON_FAILURE;
-	}
-
-	/* If we are a domain member, we must not 
-	   attempt to check the password locally,
-	   unless it is one of our aliases, empty
-	   or our domain if we are a logon server.*/
-	
-
-	if ((strcasecmp(lp_workgroup(), user_info->domain.str) != 0) &&
-	    (!is_myname(user_info->domain.str))) {
-		DEBUG(7,("The requested user domain is not the local server name or our domain. [%s]\\[%s]\n",
-			user_info->domain.str,user_info->internal_username.str));
-		return NT_STATUS_NO_SUCH_USER;
-	}		
-
-	return check_sam_security(auth_context, my_private_data, mem_ctx, user_info, server_info);
-}
-
-/* module initialisation */
-static NTSTATUS auth_init_samstrict_dc(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
-{
-	if (!make_auth_methods(auth_context, auth_method)) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	(*auth_method)->auth = check_samstrict_dc_security;
-	(*auth_method)->name = "samstrict_dc";
+	(*auth_method)->name = "sam";
 	return NT_STATUS_OK;
 }
 
@@ -577,17 +302,8 @@ NTSTATUS auth_sam_init(void)
 		return ret;
 	}
 
-	ops.name = "samstrict";
-	ops.init = auth_init_samstrict;
-	ret = register_backend("auth", &ops);
-	if (!NT_STATUS_IS_OK(ret)) {
-		DEBUG(0,("Failed to register '%s' auth backend!\n",
-			ops.name));
-		return ret;
-	}
-
-	ops.name = "samstrict_dc";
-	ops.init = auth_init_samstrict_dc;
+	ops.name = "sam_ignoredomain";
+	ops.init = auth_init_sam_ignoredomain;
 	ret = register_backend("auth", &ops);
 	if (!NT_STATUS_IS_OK(ret)) {
 		DEBUG(0,("Failed to register '%s' auth backend!\n",