software.amazon.awscdk.services.networkfirewall

Interface CfnRuleGroup.RuleDefinitionProperty

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnRuleGroup.RuleDefinitionProperty.Jsii$Proxy

Enclosing class:

CfnRuleGroup

@Stability(value=Stable)
public static interface CfnRuleGroup.RuleDefinitionProperty
extends software.amazon.jsii.JsiiSerializable

The inspection criteria and action for a single stateless rule.

AWS Network Firewall inspects each packet for the specified matching criteria. When a packet matches the criteria, Network Firewall performs the rule's actions on the packet.

Example:

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.services.networkfirewall.*;
 RuleDefinitionProperty ruleDefinitionProperty = RuleDefinitionProperty.builder()
         .actions(List.of("actions"))
         .matchAttributes(MatchAttributesProperty.builder()
                 .destinationPorts(List.of(PortRangeProperty.builder()
                         .fromPort(123)
                         .toPort(123)
                         .build()))
                 .destinations(List.of(AddressProperty.builder()
                         .addressDefinition("addressDefinition")
                         .build()))
                 .protocols(List.of(123))
                 .sourcePorts(List.of(PortRangeProperty.builder()
                         .fromPort(123)
                         .toPort(123)
                         .build()))
                 .sources(List.of(AddressProperty.builder()
                         .addressDefinition("addressDefinition")
                         .build()))
                 .tcpFlags(List.of(TCPFlagFieldProperty.builder()
                         .flags(List.of("flags"))
                         // the properties below are optional
                         .masks(List.of("masks"))
                         .build()))
                 .build())
         .build();
 

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	CfnRuleGroup.RuleDefinitionProperty.Builder A builder for CfnRuleGroup.RuleDefinitionProperty
static class	CfnRuleGroup.RuleDefinitionProperty.Jsii$Proxy An implementation for CfnRuleGroup.RuleDefinitionProperty

Method Summary

Modifier and Type	Method and Description
static CfnRuleGroup.RuleDefinitionProperty.Builder	builder()
List<String>	getActions() The actions to take on a packet that matches one of the stateless rule definition's match attributes.
Object	getMatchAttributes() Criteria for Network Firewall to use to inspect an individual packet in stateless rule inspection.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Detail

getActions

@Stability(value=Stable)
 @NotNull
List<String> getActions()

The actions to take on a packet that matches one of the stateless rule definition's match attributes.

You must specify a standard action and you can add custom actions.

Network Firewall only forwards a packet for stateful rule inspection if you specify aws:forward_to_sfe for a rule that the packet matches, or if the packet doesn't match any stateless rule and you specify aws:forward_to_sfe for the StatelessDefaultActions setting for the FirewallPolicy .

For every rule, you must specify exactly one of the following standard actions.

• aws:pass - Discontinues all inspection of the packet and permits it to go to its intended destination.
• aws:drop - Discontinues all inspection of the packet and blocks it from going to its intended destination.
• aws:forward_to_sfe - Discontinues stateless inspection of the packet and forwards it to the stateful rule engine for inspection.

Additionally, you can specify a custom action. To do this, you define a custom action by name and type, then provide the name you've assigned to the action in this Actions setting.

To provide more than one action in this setting, separate the settings with a comma. For example, if you have a publish metrics custom action that you've named MyMetricsAction , then you could specify the standard action aws:pass combined with the custom action using [“aws:pass”, “MyMetricsAction”] .

getMatchAttributes

@Stability(value=Stable)
 @NotNull
Object getMatchAttributes()

Criteria for Network Firewall to use to inspect an individual packet in stateless rule inspection.

Each match attributes set can include one or more items such as IP address, CIDR range, port number, protocol, and TCP flags.

builder

@Stability(value=Stable)
static CfnRuleGroup.RuleDefinitionProperty.Builder builder()

Returns:

a CfnRuleGroup.RuleDefinitionProperty.Builder of CfnRuleGroup.RuleDefinitionProperty