Freebsd netmap update#
Freebsd netmap driver#
Freebsd netmap manual#
Freebsd netmap software#

Freebsd netmap software#

The final result will be a reference architecture with representative hardware and software that will enable the NCCS to build, deploy, and efficiently maintain extremely cost-effective 100-Gbps firewalls. In addition to hardware improvements, updates to the network capabilities in the FreeBSD-Current version will be closely monitored and applied as appropriate. What's Nextįurther tests will continue verifying the above results with even more capable systems-such as 40-gigabit and 100-gigabit Ethernet cards-to achieve even higher performance. The development and deployment of these tools will enable scientists to efficiently and securely push their research further without having to overcome potentially huge obstacles from the lack of high-speed packet filtering. The ability to deploy security services (e.g., firewalls) without affecting performance opens the possibility of deploying more capable systems for science without compromising security. Why HPC MattersĪs the demand for more compute and data resources increase, high-performance computing (HPC) environments like the NCCS will always require higher-speed security tools and networks. The tests have shown that at the optimally tuned and configured FreeBSD system, it is possible to create a system that can manage the huge amounts of pps needed to create a 100-Gbps firewall with commodity components. Netmap-fwd increased the pps rate significantly.The choice of network card can have a significant impact on pps, tuning, and netmap support.FreeBSD was able to send more pps as a client than Centos 6.We established a pps baseline using FreeBSD-10.3 and discovered several interesting features of the packet-filtering environment: The testing has shown that the pps will rise as newer versions of the operating systems are deployed. Additional testing has involved enabling the Common Address Redundancy Protocol (CARP) to achieve an active/active architecture. We used the tools iperf3, nuttcp, and netperf to monitor the performance of the maximum bandwidth through the cards. It runs on FreeBSD, Linux and some versions of Windows, and supports a variety of.

Freebsd netmap manual#

Building on this work, we are comparing FreeBSD-11.0 and FreeBSD-Current along with implementing the netmap-fwd Application Programming Interface (API) and tuning the 10-gigabit Ethernet cards. NETMAP (4) FreeBSD Kernel Interfaces Manual NETMAP (4) NAME netmap - a framework for fast packet I/O SYNOPSIS device netmap DESCRIPTION netmap is a framework for extremely fast and efficient packet I/O for userspace and kernel clients, and for Virtual Machines. Netmap/VALE can handle tens of millions of packets per second, matching the speed of 10G and 40G ports even with minimum sized frames. Both are implemented as a single kernel module for FreeBSD, Linux and since summer 2015, also for Windows. Previous NCCS work testing the FreeBSD operating system for high-performance routing reached a maximum of 4 million pps. VALE is an equally fast in-kernel software switch using the netmap API. The test domain consists of several existing systems within the NCCS, including switches (Dell S4084), routers (Dell R530s), servers (Dell R420s, and C6100s), and host card adapters (10-Gbps Mellanox ConnectX2 and Intel 8259 x Ethernet cards). Using intel 10Gbps adapters (200euros) is a safe avenue (FreeBSD ixgbe driver).

Freebsd netmap driver#

The aim of this project is to create a commodity-based platform that can process enough packets per second (pps) to sustain a 100-Gbps workload within the NCCS computational environment. But you need a real network card and the FreeBSD driver must be ready for netmap. In order to support the requirements of emerging services, including the Advanced Data Analytics Platform (ADAPT) private cloud, the NCCS security team has proposed an architecture to provide extremely cost-effective 100-gigabit-per-second (Gbps) firewalls. The continuous growth of the NASA Center for Climate Simulation (NCCS) requires providing high-performance security tools and enhancing the network capacity.

Freebsd netmap update#

An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.įreeBSD has issued an update to correct this vulnerability.Building Cost-Effective 100-Gbps Firewalls for HPC The issue results from the lack of proper locking when performing operations on an object. The specific flaw exists within the handling of arguments to the Netmap device. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of FreeBSD Kernel. September 20th, 2022 FreeBSD Kernel Netmap Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability ZDI-22-1291Ĩ.2, (AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)