Date: Thu, 02 Nov 2023 11:36:58 +0100 From: Dmitry Salychev <dsl@FreeBSD.org> To: freebsd-pf@FreeBSD.org, freebsd-ipfw@FreeBSD.org, freebsd-embedded@FreeBSD.org Subject: Porting firewall to RTOS Message-ID: <86ttq42ybz.fsf@peasant.tower.home>
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Dear all, My employer is considering different proprietary firewall/IDS solutions at the moment to be utilized on the Marvell Brightlane managed automotive Ethernet switches (there are Cortex-R52 cores on the same IC connected to the switch fabric). I've proposed to consider porting existing open source firewalls instead, but I'd like to ask your opinion. Generally speaking, Marvell provides a light-weight RTOS to run on their switches together with the Titan SDK to develop user applications. I haven't had a chance to tinker with the RTOS or SDK yet, but trying to understand whether porting PF/IPFW/IPF feasible taking the fact that PF has been ported to different OSes (including QNX) into account. Which of the firewalls would you choose if you had to do something similar and why? Which restrictions of the RTOSes would you consider (no dynamic memory allocation, no virtual memory, etc.) if you had to estimate the whole work to port the open source firewall? Personally, I've been looking for some ways to bring FreeBSD into the automotive domain, but haven't had an opportunity to do so till this very moment. Regards, Dmitry -- https://wiki.freebsd.org/DmitrySalychev
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