multistack | kernel module | Networking library

by sysml C Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | multistack Summary

multistack is a C library typically used in Networking applications. multistack has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

MultiStack is a kernel module that enables user-level network stacks to securely run alongside the in-kernel stack on the same NIC. To isolate multiple network stacks including the in-kernel stack, a 3-tuple is used. Currently, applications that run on socket APIs are isolated such that they exclusively use this 3-tuple through a call to bind() or equivalent system calls (except for special cases like fork()); MultiStack extends this primitive to user-space stacks. For example, when a user-level stack wishes to use local port TCP 80 on a NIC configured with IP address 10.0.0.2, it must create a socket, call bind() with the corresponding 3-tuple, and register the tuple with MultiStack. MultiStack is implemented as a module in VALE, a fast, scalable and modular software switch. A VALE virtual port is used to interconnect a user-level stack and a NIC. MultiStack forwards packets from the NIC to the different virtual ports (or the in-kernel network stack) based on the set of currently registered 3-tuples. It also validates packets sent from virtual ports to ensure that they match the registered 3-tuples.

Support

Quality

Security

License

Reuse

Support

multistack has a low active ecosystem.

It has 16 star(s) with 7 fork(s). There are 12 watchers for this library.

It had no major release in the last 6 months.

multistack has no issues reported. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of multistack is current.

Quality

multistack has no bugs reported.

Security

multistack has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

multistack does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

multistack releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of multistack

Get all kandi verified functions for this library.

multistack Key Features

No Key Features are available at this moment for multistack.

multistack Examples and Code Snippets

No Code Snippets are available at this moment for multistack.

Community Discussions

Trending Discussions on multistack

Navigation causes crash after opening killed activity

Templated multistack implementation - how?

Transparent background with multiple stacked google.charts.Bar,

Unable to connect to pgsql database with Java REST-API on local Tomcat server. Stack contains ExceptionInInitializerError and IllegalStateException

Multiple Nested Classes Java

QUESTION

Navigation causes crash after opening killed activity

Asked 2020-Jul-24 at 00:55

My app crashes after restarting killed activity that uses multiple back stack as shown in samples for bottom navigation tabs. It only crashes when using multistack.

Stacktrace:

...

ANSWER

Answered 2020-Jul-24 at 00:55

Apparently the problem was having the same id for navigation graphs and destinations. https://issuetracker.google.com/issues/161825212

Source https://stackoverflow.com/questions/63004311

QUESTION

Templated multistack implementation - how?

Asked 2020-Apr-19 at 06:42

I need a 'MultiStack' taking different types of objects, putting each type in a separate stack.

This is what it looks like so far. The open problem is: how to handle the containers for a number of different T

...

ANSWER

Answered 2020-Apr-19 at 06:42

but I don't like this anymore in the age of multi-threading. It is 'dangerous', right!?

Issue is not multi-threading. initialization would be fine. You still have to protect/synchronize access though, as regular multi-threading code.

Issue is that the container is not per instance of MultiTask, as it is static. It is mostly as if MultiTask were a Singleton.

It is conceivable that I know the allowed types beforehand, if that helps realizing it.

That helps, you can then use std::tuple, something like (C++14):

Source https://stackoverflow.com/questions/61299941

QUESTION

Transparent background with multiple stacked google.charts.Bar,

Asked 2019-Dec-30 at 18:20

I need to do multiple stacked bar/column chart with transparent background.

So, transparent background can be obtain pretty easily via:

...

ANSWER

Answered 2017-Jan-23 at 15:28

in addition to --> backgroundColor: {fill: 'transparent'}

you can set the background color of the chart area with...

Source https://stackoverflow.com/questions/41803950

QUESTION

Unable to connect to pgsql database with Java REST-API on local Tomcat server. Stack contains ExceptionInInitializerError and IllegalStateException

Asked 2018-Apr-16 at 18:27

I am developing a REST-API and currently trying to fix an issue. The issue is that the REST-API is Unable to connect to pgsql database, when I go to my web page in chrome. To show this issue, I'll post a stripped down version of my stack with some explanation, describing the origin and functionality of the involved Java classes and XML. Afterwards, I'll show some code of the involved XML files and java classes. I'll look forward to your answers and feedback on my first post.

UPDATE: at the end of the post I'll disclose my major progress towards finding the answer.

Up till now I'm using the following tools:

Eclipse EE (Oxygen II at the moment)
Apache Tomcat 8.5.14
Maven
Chrome
PG-admin 4

the stack begins with this line, which probably means Jersey runs into some difficulties.

...

ANSWER

Answered 2018-Apr-04 at 14:31

It appears that you have not bound your datasource in tomcat's JNDI. You would need to make an entry in context.xml , like the below -

Source https://stackoverflow.com/questions/49651819

QUESTION

Multiple Nested Classes Java

Asked 2017-May-20 at 20:00

Hi so I have a class that has mulitple layers of nested classes within it and I was wondering why it does not work. For some reason I cant create a new StackNode I was wondering why that might be.

...

ANSWER

Answered 2017-May-20 at 18:43

Neither class Stack1 nor class StackNode are static.

Therefore you need an instance of the surrounding class to instantiate it.

When you try to instantiate class StackNode you are in an object of MultiStack:

Source https://stackoverflow.com/questions/44089457

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install multistack

Make sure you have netmap installed.
Make sure you have netmap installed.
In the Multistack directory: cd LINUX make KSRC=PATH_TO_KERNEL_SOURCES NSRC=PATH_TO_NETMAP_SOURCES
Assuming that the kernel source code directory is ~/head/ use. If you also want SCTP support, you need to do.

Support

MultiStack is a kernel module that enables user-level network stacks to securely run alongside the in-kernel stack on the same NIC. To isolate multiple network stacks including the in-kernel stack, a <dst ip address, dst port and protocol> 3-tuple is used. Currently, applications that run on socket APIs are isolated such that they exclusively use this 3-tuple through a call to bind() or equivalent system calls (except for special cases like fork()); MultiStack extends this primitive to user-space stacks. For example, when a user-level stack wishes to use local port TCP 80 on a NIC configured with IP address 10.0.0.2, it must create a socket, call bind() with the corresponding 3-tuple, and register the tuple with MultiStack. MultiStack is implemented as a module in VALE, a fast, scalable and modular software switch. A VALE virtual port is used to interconnect a user-level stack and a NIC. MultiStack forwards packets from the NIC to the different virtual ports (or the in-kernel network stack) based on the set of currently registered 3-tuples. It also validates packets sent from virtual ports to ensure that they match the registered 3-tuples.

Find more information at: