<def-group>
  <definition class="compliance" id="{{{ rule_id }}}" version="2">
    {{{ oval_metadata("Ensure 'MaxStartups' is properly configured in SSH configuration files.", rule_title=rule_title) }}}
    <criteria operator="OR" comment="sshd MaxStartups parameter is properly configured if sshd is installed">
      <criteria operator="AND" comment="sshd is not installed">
        <extend_definition definition_ref="sshd_not_required_or_unset"
          comment="sshd is not required or requirement is unset"/>
        {{% if product in ['opensuse', 'sle12', 'sle15'] %}}
        <extend_definition definition_ref="package_openssh_removed"
          comment="rpm package openssh is removed"/>
        {{% else %}}
        <extend_definition definition_ref="package_openssh-server_removed"
          comment="rpm package openssh-server is removed"/>
        {{% endif %}}
      </criteria>
      <criteria operator="AND">
        <criterion test_ref="tst_maxstartups_start_parameter" comment="SSH MaxStartups start parameter is less than or equal to 10"/>
        <criterion test_ref="tst_maxstartups_rate_parameter" comment="SSH MaxStartups rate parameter is greater than or equal to 30"/>
        <criterion test_ref="tst_maxstartups_full_parameter" comment="SSH MaxStartups full parameter is less than or equal to 100"/>
      </criteria>
    </criteria>
  </definition>

  <ind:textfilecontent54_object id="obj_sshd_config_maxstartups_first_parameter" version="2">
    <ind:path operation="pattern match">/etc/(ssh|ssh/sshd_config.d)</ind:path>
    <ind:filename operation="pattern match">(sshd_config|.*\.conf)$</ind:filename>
    <ind:pattern operation="pattern match" datatype="string">(?i)^\s*MaxStartups\s+(\d+):\d+:\d+\s*$</ind:pattern>
    <ind:instance operation="greater than or equal" datatype="int">1</ind:instance>
  </ind:textfilecontent54_object>
  <ind:textfilecontent54_object id="obj_sshd_config_maxstartups_second_parameter" version="2">
    <ind:path operation="pattern match">/etc/(ssh|ssh/sshd_config.d)</ind:path>
    <ind:filename operation="pattern match">(sshd_config|.*\.conf)$</ind:filename>
    <ind:pattern operation="pattern match" datatype="string">(?i)^\s*MaxStartups\s+\d+:(\d+):\d+\s*$</ind:pattern>
    <ind:instance operation="greater than or equal" datatype="int">1</ind:instance>
  </ind:textfilecontent54_object>
  <ind:textfilecontent54_object id="obj_sshd_config_maxstartups_third_parameter" version="2">
    <ind:path operation="pattern match">/etc/(ssh|ssh/sshd_config.d)</ind:path>
    <ind:filename operation="pattern match">(sshd_config|.*\.conf)$</ind:filename>
    <ind:pattern operation="pattern match" datatype="string">(?i)^\s*MaxStartups\s+\d+:\d+:(\d+)\s*$</ind:pattern>
    <ind:instance operation="greater than or equal" datatype="int">1</ind:instance>
  </ind:textfilecontent54_object>

  <external_variable id="var_sshd_set_maxstartups" version="1"
    datatype="string" comment="Expected value for MaxStartups parameter"/>

  <local_variable id="var_sshd_set_maxstartups_first" version="1" datatype="int"
    comment="First number from MaxStartup parameter value.">
    <regex_capture pattern="(\d+):\d+:\d+">
      <variable_component var_ref="var_sshd_set_maxstartups"/>
    </regex_capture>
  </local_variable>
  <local_variable id="var_sshd_set_maxstartups_second" version="1" datatype="int"
    comment="Second number from MaxStartup parameter value.">
    <regex_capture pattern="\d+:(\d+):\d+">
      <variable_component var_ref="var_sshd_set_maxstartups"/>
    </regex_capture>
  </local_variable>
  <local_variable id="var_sshd_set_maxstartups_third" version="1" datatype="int"
    comment="Third number from MaxStartup parameter value.">
    <regex_capture pattern="\d+:\d+:(\d+)">
      <variable_component var_ref="var_sshd_set_maxstartups" />
    </regex_capture>
  </local_variable>

  <ind:textfilecontent54_state id="ste_sshd_config_start_parameter_valid" version="2">
    <ind:subexpression datatype="int" operation="less than or equal"
      var_ref="var_sshd_set_maxstartups_first"/>
  </ind:textfilecontent54_state>
  <ind:textfilecontent54_state id="ste_sshd_config_rate_parameter_valid" version="2">
    <ind:subexpression datatype="int" operation="greater than or equal"
      var_ref="var_sshd_set_maxstartups_second"/>
  </ind:textfilecontent54_state>
  <ind:textfilecontent54_state id="ste_sshd_config_full_parameter_valid" version="2">
    <ind:subexpression datatype="int" operation="less than or equal"
      var_ref="var_sshd_set_maxstartups_third"/>
  </ind:textfilecontent54_state>

  <ind:textfilecontent54_test id="tst_maxstartups_start_parameter" version="2"
    check="all" check_existence="at_least_one_exists"
    comment="SSH MaxStartups start parameter is less than or equal to the expected value">
    <ind:object object_ref="obj_sshd_config_maxstartups_first_parameter"/>
    <ind:state state_ref="ste_sshd_config_start_parameter_valid"/>
  </ind:textfilecontent54_test>
  <ind:textfilecontent54_test id="tst_maxstartups_rate_parameter" version="2"
    check="all" check_existence="at_least_one_exists"
    comment="SSH MaxStartups rate parameter is greater than or equal to the expected value">
    <ind:object object_ref="obj_sshd_config_maxstartups_second_parameter"/>
    <ind:state state_ref="ste_sshd_config_rate_parameter_valid"/>
  </ind:textfilecontent54_test>
  <ind:textfilecontent54_test id="tst_maxstartups_full_parameter" version="2"
    check="all" check_existence="at_least_one_exists"
    comment="SSH MaxStartups full parameter is less than or equal to the expected value">
    <ind:object object_ref="obj_sshd_config_maxstartups_third_parameter"/>
    <ind:state state_ref="ste_sshd_config_full_parameter_valid"/>
  </ind:textfilecontent54_test>
</def-group>
