Exemplo n.º 1
0
static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
			       struct samu *sampass, 
			       const auth_usersupplied_info *user_info)
{
	uint32	acct_ctrl = pdb_get_acct_ctrl(sampass);
	char *workstation_list;
	time_t kickoff_time;
	
	DEBUG(4,("sam_account_ok: Checking SMB password for user %s\n",pdb_get_username(sampass)));

	/* Quit if the account was disabled. */
	if (acct_ctrl & ACB_DISABLED) {
		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;
	}

	/* Quit if the account is not allowed to logon at this time. */
	if (! logon_hours_ok(sampass)) {
		return NT_STATUS_INVALID_LOGON_HOURS;
	}

	/* Test account expire time */
	
	kickoff_time = pdb_get_kickoff_time(sampass);
	if (kickoff_time != 0 && time(NULL) > 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;
	}

	if (!(pdb_get_acct_ctrl(sampass) & ACB_PWNOEXP) && !(pdb_get_acct_ctrl(sampass) & ACB_PWNOTREQ)) {
		time_t must_change_time = pdb_get_pass_must_change_time(sampass);
		time_t last_set_time = pdb_get_pass_last_set_time(sampass);

		/* check for immediate expiry "must change at next logon" 
		 * for a user account. */
		if (((acct_ctrl & (ACB_WSTRUST|ACB_SVRTRUST)) == 0) && (last_set_time == 0)) {
			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,("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", http_timestring(must_change_time), (long)must_change_time));
			return NT_STATUS_PASSWORD_EXPIRED;
		}
	}

	/* 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) {
		BOOL invalid_ws = True;
		fstring tok;
		const char *s = workstation_list;

		const char *machine_name = talloc_asprintf(mem_ctx, "%s$", user_info->wksta_name);
		if (machine_name == NULL)
			return NT_STATUS_NO_MEMORY;
			
			
		while (next_token(&s, tok, ",", sizeof(tok))) {
			DEBUG(10,("sam_account_ok: checking for workstation match %s and %s\n",
				  tok, user_info->wksta_name));
			if(strequal(tok, user_info->wksta_name)) {
				invalid_ws = False;
				break;
			}
			if (tok[0] == '+') {
				DEBUG(10,("sam_account_ok: checking for workstation %s in group: %s\n", 
					machine_name, tok + 1));
				if (user_in_group(machine_name, tok + 1)) {
					invalid_ws = False;
					break;
				}
			}
		}
		
		if (invalid_ws) 
			return NT_STATUS_INVALID_WORKSTATION;
	}

	if (acct_ctrl & ACB_DOMTRUST) {
		DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", pdb_get_username(sampass)));
		return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
	}
	
	if (acct_ctrl & ACB_SVRTRUST) {
		if (!(user_info->logon_parameters & MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT)) {
			DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", pdb_get_username(sampass)));
			return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
		}
	}

	if (acct_ctrl & ACB_WSTRUST) {
		if (!(user_info->logon_parameters & MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT)) {
			DEBUG(2,("sam_account_ok: Wksta trust account %s denied by server\n", pdb_get_username(sampass)));
			return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
		}
	}
	return NT_STATUS_OK;
}
Exemplo n.º 2
0
/****************************************************************************
 Do a specific test for a SAM_ACCOUNT being valid for this connection
 (ie not disabled, expired and the like).
****************************************************************************/
_PUBLIC_ NTSTATUS authsam_account_ok(TALLOC_CTX *mem_ctx,
				     struct ldb_context *sam_ctx,
				     uint32_t logon_parameters,
				     struct ldb_dn *domain_dn,
				     struct ldb_message *msg,
				     const char *logon_workstation,
				     const char *name_for_logs,
				     bool allow_domain_trust,
				     bool password_change)
{
	uint16_t acct_flags;
	const char *workstation_list;
	NTTIME acct_expiry;
	NTTIME must_change_time;

	NTTIME now;
	DEBUG(4,("authsam_account_ok: Checking SMB password for user %s\n", name_for_logs));

	acct_flags = samdb_result_acct_flags(sam_ctx, mem_ctx, msg, domain_dn);
	
	acct_expiry = samdb_result_account_expires(msg);

	/* Check for when we must change this password, taking the
	 * userAccountControl flags into account */
	must_change_time = samdb_result_force_password_change(sam_ctx, mem_ctx, 
							      domain_dn, msg);

	workstation_list = ldb_msg_find_attr_as_string(msg, "userWorkstations", NULL);

	/* Quit if the account was disabled. */
	if (acct_flags & ACB_DISABLED) {
		DEBUG(2,("authsam_account_ok: Account for user '%s' was disabled.\n", name_for_logs));
		return NT_STATUS_ACCOUNT_DISABLED;
	}

	/* Quit if the account was locked out. */
	if (acct_flags & ACB_AUTOLOCK) {
		DEBUG(2,("authsam_account_ok: Account for user %s was locked out.\n", name_for_logs));
		return NT_STATUS_ACCOUNT_LOCKED_OUT;
	}

	/* Test account expire time */
	unix_to_nt_time(&now, time(NULL));
	if (now > acct_expiry) {
		DEBUG(2,("authsam_account_ok: Account for user '%s' has expired.\n", name_for_logs));
		DEBUG(3,("authsam_account_ok: Account expired at '%s'.\n", 
			 nt_time_string(mem_ctx, acct_expiry)));
		return NT_STATUS_ACCOUNT_EXPIRED;
	}

	/* check for immediate expiry "must change at next logon" (but not if this is a password change request) */
	if ((must_change_time == 0) && !password_change) {
		DEBUG(2,("sam_account_ok: Account for user '%s' password must change!.\n",
			 name_for_logs));
		return NT_STATUS_PASSWORD_MUST_CHANGE;
	}

	/* check for expired password (but not if this is a password change request) */
	if ((must_change_time < now) && !password_change) {
		DEBUG(2,("sam_account_ok: Account for user '%s' password expired!.\n",
			 name_for_logs));
		DEBUG(2,("sam_account_ok: Password expired at '%s' unix time.\n",
			 nt_time_string(mem_ctx, must_change_time)));
		return NT_STATUS_PASSWORD_EXPIRED;
	}

	/* Test workstation. Workstation list is comma separated. */
	if (logon_workstation && workstation_list && *workstation_list) {
		bool invalid_ws = true;
		int i;
		const char **workstations = (const char **)str_list_make(mem_ctx, workstation_list, ",");
		
		for (i = 0; workstations && workstations[i]; i++) {
			DEBUG(10,("sam_account_ok: checking for workstation match '%s' and '%s'\n",
				  workstations[i], logon_workstation));

			if (strequal(workstations[i], logon_workstation)) {
				invalid_ws = false;
				break;
			}
		}

		talloc_free(workstations);

		if (invalid_ws) {
			return NT_STATUS_INVALID_WORKSTATION;
		}
	}
	
	if (!logon_hours_ok(msg, name_for_logs)) {
		return NT_STATUS_INVALID_LOGON_HOURS;
	}
	
	if (!allow_domain_trust) {
		if (acct_flags & ACB_DOMTRUST) {
			DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", name_for_logs));
			return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
		}
	}
	if (!(logon_parameters & MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT)) {
		if (acct_flags & ACB_SVRTRUST) {
			DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", name_for_logs));
			return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
		}
	}
	if (!(logon_parameters & MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT)) {
		/* TODO: this fails with current solaris client. We
		   need to work with Gordon to work out why */
		if (acct_flags & ACB_WSTRUST) {
			DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", name_for_logs));
			return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
		}
	}

	return NT_STATUS_OK;
}