[Peers] Feature: Implement optional message dropping in Message send path #703

Description

@julianknutsen

As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

Definition of Done:

  • Optimal messages identified
  • Policy decision made on if/when items should be dropped
  • Unit tests updated to drop optional messages during flow control

Tech Discussion:
TODO from the codebase:

// TODO: There are some DoS attacks here where you can flood someone's outbound send
// buffer by doing things like announcing channels on another node. We should be willing to
// drop optional-ish messages when send buffers get full!

The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

The Transport unit tests should be easily updated to test this behavior.

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      [Peers] Feature: Implement optional message dropping in Message send path #703

      Description

      @julianknutsen

      As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

      Definition of Done:

      • Optimal messages identified
      • Policy decision made on if/when items should be dropped
      • Unit tests updated to drop optional messages during flow control

      Tech Discussion:
      TODO from the codebase:

      // TODO: There are some DoS attacks here where you can flood someone's outbound send
      // buffer by doing things like announcing channels on another node. We should be willing to
      // drop optional-ish messages when send buffers get full!
      

      The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

      Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

      The Transport unit tests should be easily updated to test this behavior.

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          [Peers] Feature: Implement optional message dropping in Message send path #703

          Description

          @julianknutsen

          As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

          Definition of Done:

          • Optimal messages identified
          • Policy decision made on if/when items should be dropped
          • Unit tests updated to drop optional messages during flow control

          Tech Discussion:
          TODO from the codebase:

          // TODO: There are some DoS attacks here where you can flood someone's outbound send
          // buffer by doing things like announcing channels on another node. We should be willing to
          // drop optional-ish messages when send buffers get full!
          

          The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

          Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

          The Transport unit tests should be easily updated to test this behavior.

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              [Peers] Feature: Implement optional message dropping in Message send path #703

              Description

              @julianknutsen

              As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

              Definition of Done:

              • Optimal messages identified
              • Policy decision made on if/when items should be dropped
              • Unit tests updated to drop optional messages during flow control

              Tech Discussion:
              TODO from the codebase:

              // TODO: There are some DoS attacks here where you can flood someone's outbound send
              // buffer by doing things like announcing channels on another node. We should be willing to
              // drop optional-ish messages when send buffers get full!
              

              The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

              Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

              The Transport unit tests should be easily updated to test this behavior.

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                  Skip to content

                  [Peers] Feature: Implement optional message dropping in Message send path #703

                  Description

                  @julianknutsen

                  As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

                  Definition of Done:

                  • Optimal messages identified
                  • Policy decision made on if/when items should be dropped
                  • Unit tests updated to drop optional messages during flow control

                  Tech Discussion:
                  TODO from the codebase:

                  // TODO: There are some DoS attacks here where you can flood someone's outbound send
                  // buffer by doing things like announcing channels on another node. We should be willing to
                  // drop optional-ish messages when send buffers get full!
                  

                  The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

                  Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

                  The Transport unit tests should be easily updated to test this behavior.

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                      [Peers] Feature: Implement optional message dropping in Message send path #703

                      Description

                      @julianknutsen

                      As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

                      Definition of Done:

                      • Optimal messages identified
                      • Policy decision made on if/when items should be dropped
                      • Unit tests updated to drop optional messages during flow control

                      Tech Discussion:
                      TODO from the codebase:

                      // TODO: There are some DoS attacks here where you can flood someone's outbound send
                      // buffer by doing things like announcing channels on another node. We should be willing to
                      // drop optional-ish messages when send buffers get full!
                      

                      The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

                      Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

                      The Transport unit tests should be easily updated to test this behavior.

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                          [Peers] Feature: Implement optional message dropping in Message send path #703

                          Description

                          @julianknutsen

                          As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

                          Definition of Done:

                          • Optimal messages identified
                          • Policy decision made on if/when items should be dropped
                          • Unit tests updated to drop optional messages during flow control

                          Tech Discussion:
                          TODO from the codebase:

                          // TODO: There are some DoS attacks here where you can flood someone's outbound send
                          // buffer by doing things like announcing channels on another node. We should be willing to
                          // drop optional-ish messages when send buffers get full!
                          

                          The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

                          Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

                          The Transport unit tests should be easily updated to test this behavior.

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                              Skip to content

                              [Peers] Feature: Implement optional message dropping in Message send path #703

                              Description

                              @julianknutsen

                              As a Transport layer, I want to know which messages are optional and which messages are mandatory so I can make the right policy decision when my queue is full or the SocketDescriptor fails a full write.

                              Definition of Done:

                              • Optimal messages identified
                              • Policy decision made on if/when items should be dropped
                              • Unit tests updated to drop optional messages during flow control

                              Tech Discussion:
                              TODO from the codebase:

                              // TODO: There are some DoS attacks here where you can flood someone's outbound send
                              // buffer by doing things like announcing channels on another node. We should be willing to
                              // drop optional-ish messages when send buffers get full!
                              

                              The current OutboundQueue allows the message path to push messages over the soft limit (the sync messages are the only things that care about the soft limit).

                              Seems like an update to the Transport API makes the most sense. Potentially adding a priority number or classification to each enqueue_message() where the Transport layer can make the policy decision to drop it if necessary.

                              The Transport unit tests should be easily updated to test this behavior.

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