# efvicap

**Repository Path**: djsource/efvicap

## Basic Information

- **Project Name**: efvicap
- **Description**: solarflare ef_vi
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2021-02-22
- **Last Updated**: 2022-09-13

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# efvicap

[![GitHub](https://img.shields.io/github/license/rigtorp/efvicap.svg)](https://github.com/rigtorp/efvicap/blob/master/LICENSE)

*efvicap* is a packet capture tool for network adapters
from [Solarflare](http://solarflare.com/). It uses the ef_vi API for
direct access to DMA memory and can capture traffic intended for
applications accelerated with [OpenOnload](http://www.openonload.org/)

## Usage

```sh
usage: efvicap [-i iface] [-w file] [filters...]

  -i iface    Interface to capture packets from
  -w file     Write packets in pcap format to file
```

Using an empty filter captures all packets (requiers a SolarCapture
license).

## Example

Print info about all received packets:

```sh
$ efvicap -i eth0
```

Save packets to *out.pcap*:

```sh
$ efvicap -i eth0 -w out.pcap
```

Pipe packets to *tcpdump* and print only UDP packets:

```sh
$ efvicap -i eth0 -w - | tcpdump -r - udp
```

Save UDP packets sent to 230.0.0.1:5000 and 230.0.0.2:6000:

```sh
$ efvicap -i eth0 -w out.pcap 230.0.0.1:5000 230.0.0.2:6000
```

## Building & Installing

*efvicap* requires [CMake](https://cmake.org/) 3.6 or higher to build
and install.

Building:

```sh
$ cd efvicap
$ mkdir build
$ cd build
$ cmake ..
$ make
```

Installing:

```sh
$ make install
```

## TODO

- Hardware timestamping
- Multiple interfaces
- Separate thread for writing to disk
- Compression

## About

This project was created by [Erik Rigtorp](http://rigtorp.se)
<[erik@rigtorp.se](mailto:erik@rigtorp.se)>.