Module: NewRelic::Security::Instrumentation::Kernel

Included in:
Prepend
Defined in:
lib/newrelic_security/instrumentation-security/kernel/chain.rb,
lib/newrelic_security/instrumentation-security/kernel/prepend.rb,
lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb

Defined Under Namespace

Modules: Chain, Prepend

Instance Method Summary collapse

Instance Method Details

#backtick_on_enter(cmd) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 54

def backtick_on_enter(cmd)
  event = nil
  NewRelic::Security::Agent.logger.debug "OnEnter : #{self.class}.#{__method__}"
  event = NewRelic::Security::Agent::Control::Collector.collect(SYSTEM_COMMAND, Array(cmd))
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
  return event
end

#backtick_on_exit(event) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 65

def backtick_on_exit(event)
  NewRelic::Security::Agent.logger.debug "OnExit :  #{self.class}.#{__method__}"
  NewRelic::Security::Agent::Utils.create_exit_event(event) if $? && $?.exitstatus == 0
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
end

#exec_on_enter(*var) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 98

def exec_on_enter(*var)
  event = nil
  NewRelic::Security::Agent.logger.debug "OnEnter : #{self.class}.#{__method__}"
  event = NewRelic::Security::Agent::Control::Collector.collect(SYSTEM_COMMAND, var)
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
  return event
end

#exec_on_exit(event) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 109

def exec_on_exit(event)
  NewRelic::Security::Agent.logger.debug "OnExit :  #{self.class}.#{__method__}"
  NewRelic::Security::Agent.logger.debug "Exit event : #{event}"
  # TODO: Add exit event if required
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
end

#open_on_enter(*args, **kwargs) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 119

def open_on_enter(*args, **kwargs)
  event = nil
  NewRelic::Security::Agent.logger.debug "OnEnter : #{self.class}.#{__method__}"
  fname = ::File.path(args[0]) #some times it is 'String' or 'Path' class
  if fname.start_with?(PIPE)
    event = NewRelic::Security::Agent::Control::Collector.collect(SYSTEM_COMMAND, args)
  else
    abs_path = ::File.expand_path(fname)
    if args.length == 2
      fmode = args[1]
      event_category = NewRelic::Security::Instrumentation::InstrumentationUtils::OPEN_MODES.include?(fmode) ? READ : WRITE
      if NewRelic::Security::Instrumentation::InstrumentationUtils.notify_app_integrity_open?(fname, abs_path, fmode)
        event = NewRelic::Security::Agent::Control::Collector.collect(FILE_INTEGRITY, Array(fname), event_category)
      else
        if NewRelic::Security::Instrumentation::InstrumentationUtils.read_filter?(fname, abs_path)
          NewRelic::Security::Agent.logger.debug "Filtered because File name exist in filtered list #{self.class}.#{__method__} Args:: #{fname} #{fmode}"
        else
          event = NewRelic::Security::Agent::Control::Collector.collect(FILE_OPERATION, Array(fname), event_category)
        end
      end
    else
      if NewRelic::Security::Instrumentation::InstrumentationUtils.read_filter?(fname, abs_path)
        NewRelic::Security::Agent.logger.debug "Filtered because File name exist in filtered list #{self.class}.#{__method__} Args:: #{args}"
      else
        event = NewRelic::Security::Agent::Control::Collector.collect(FILE_OPERATION, Array(fname), READ)
      end
    end
  end
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
  return event
end

#open_on_exit(event, retval) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 154

def open_on_exit(event, retval)
  NewRelic::Security::Agent.logger.debug "OnExit :  #{self.class}.#{__method__}"
  NewRelic::Security::Agent::Utils.create_exit_event(event) if retval.is_a?(Integer)
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
end

#require_on_enter(name) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 8

def require_on_enter(name)
  event = nil
  NewRelic::Security::Agent.logger.debug "OnEnter : #{self.class}.#{__method__}"
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
  return event
end

#require_on_exit(event, retval, name) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 18

def require_on_exit(event, retval, name)
  NewRelic::Security::Agent.logger.debug "OnExit :  #{self.class}.#{__method__}"
  if retval
    NewRelic::Security::Agent.logger.info "Dynamic loading of #{name} module observed, TODO: Call Instrumentation API"
     # TODO: Call Instrumentation API here (Dynamic loading of module observed)
  end
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
end

#spawn_on_enter(*var) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 74

def spawn_on_enter(*var)
  event = nil
  NewRelic::Security::Agent.logger.debug "OnEnter : #{self.class}.#{__method__}"
  ic_args = []
  var.each { |arg| 
    ic_args << arg if arg.is_a? String
  }
  event = NewRelic::Security::Agent::Control::Collector.collect(SYSTEM_COMMAND, ic_args)
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
  return event
end

#spawn_on_exit(event, retval) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 89

def spawn_on_exit(event, retval)
  NewRelic::Security::Agent.logger.debug "OnExit :  #{self.class}.#{__method__}"
  NewRelic::Security::Agent::Utils.create_exit_event(event) if retval.is_a?(Integer)
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
end

#system_on_enter(*var) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 30

def system_on_enter(*var)
  event = nil
  NewRelic::Security::Agent.logger.debug "OnEnter : #{self.class}.#{__method__}"
  ic_args = []
  var.each { |arg| 
    ic_args << arg if arg.is_a? String
  }
  event = NewRelic::Security::Agent::Control::Collector.collect(SYSTEM_COMMAND, ic_args)
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
  return event
end

#system_on_exit(event, retval) ⇒ Object 



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# File 'lib/newrelic_security/instrumentation-security/kernel/instrumentation.rb', line 45

def system_on_exit(event, retval)
  NewRelic::Security::Agent.logger.debug "OnExit :  #{self.class}.#{__method__}"
  NewRelic::Security::Agent::Utils.create_exit_event(event) if retval
rescue => exception
  NewRelic::Security::Agent.logger.error "Exception in hook in #{self.class}.#{__method__}, #{exception.inspect}, #{exception.backtrace}"
ensure
  yield
end