James Bottomley

Linux SCSI subsystem Maintainer, Distinguished Engineer in IBM Research. Infrequent twitter user, so matrix @jejb: will give faster DM

[James Bottomley @jejb_]

I had reason to try to do ipsec for confidential computing and discovered the documentation about how ip xfrm actually works is pretty much non-existent, so this is my attempt to document it:

https://t.co/5FZglc0Dpj

[James Bottomley @jejb_]

Probably the final post in my Android series: after you've rooted your phone and installed your own OS, this is how to lock it down again:

https://t.co/cIA1CfV9vK

[James Bottomley @jejb_]

This is probably pretty specialized, but just in case anyone needs help debugging #android early boot

https://t.co/qAQiW5OdHQ

[James Bottomley @jejb_]

What I did over Christmas: Securing the Google SIP stack in android:

https://t.co/dztxPzlvkk

[James Bottomley @jejb_]

I should probably say I'm having extreme difficulty with twitter not liking the way I use it (it's taken several days just to be able to log in here), so engagement over at Mastodon will be much higher

https://t.co/KvhBucH0fT

[James Bottomley @jejb_]

The EU Cyber Resilience Act trying to force support for open source components looks like an inevitable sweep of public perceptions of open source. We still need to make sure that the liability lands on whoever is making the money not the end developer

https://t.co/cPrrfMudFU

[James Bottomley @jejb_]

Hoping to spur some debate about our ongoing Licensing incompatibility problems between open source communities leading to code balkanization:

https://t.co/gwXuMSexoF

[James Bottomley @jejb_]

After over a year of procrastination, I finally got around to doing a provider conversion on the openssl_tpm2_engine. This is the story of how to do it with the minimum of effort:

https://t.co/KL7Uf7qPRl

[Linux Plumbers Conference 2026 @linuxplumbers]

Preliminary Dates and Location for LPC2023
https://t.co/412shKA0lR
#linuxplumbers

[James Bottomley @jejb_]

@fosdem talk about using open source to run a hybrid conference (Based on Linux Plumbers Conference experience) is now up (including video and presentation link):

https://t.co/D09sk4mhI2

[James Bottomley @jejb_]

Various events have caused me to wonder why the way I use phones (mobile and otherwise) is so different from everyone else. I think the answer is just "because I can". So here's the recipe for how this happened:

https://t.co/4ASwXpAewK

[James Bottomley @jejb_]

Given what's been happening on twitter, I should mention I do have a mastodon account @[email protected], but I mainly use it for checking activitypub on my blog @[email protected]

The latter will do mastodon likes and replies as well

[James Bottomley @jejb_]

Slides from yesterdays talk at #ATO2022 @AllThingsOpen on #GPL as the best open source licence for small business are here:

https://t.co/ZzFRx53stD

[James Bottomley @jejb_]

Excited to be at All Things Open (My first time ...)

[All Things Open @AllThingsOpen]

We're excited to have James Bottomley (@jejb_), Distinguished Engineer for @ibmresearch, presenting "GPL: The Best Open Source Licence for Small Business" at #AllThingsOpen! https://t.co/s6GqisjKnq

[James Bottomley @jejb_]

People advocating paying Maintainers is on the uptick, so here's my look at the current rationalizations for doing it

https://t.co/9EaeabrYOg

[Linux Plumbers Conference 2026 @linuxplumbers]

We do already have a good number of #microconference proposal for #LinuxPlumbers 2022. You can check them out at:
https://t.co/1d1Iwyk4aK

Make sure to hand your proposals in before Saturday, 2nd April 2022!

[James Bottomley @jejb_]

Given that Todd Warner stopped doing his element-desktop packages I thought I'd try building them. I'm now much sadder but wiser about the extreme difficulty of electron offline builds. Here they are for openSUSE and Fedora:

https://t.co/oWZmKtE67l

[James Bottomley @jejb_]

@decodebytes @MortenLinderud @Sh1bumi @ibuildthecloud @lorenc_dan @lumjjb The TPM allows you to create arbitrary numbers of Attestation Keys (AKs). The privacy CA is trusted with your EK cert and certifies the AKs but won't reveal the EK binding. You can rotate AKs to avoid being tracked. The cert gives the relying party assurance its from a real TPM

[James Bottomley @jejb_]

@vathpela @tehcaster Ah, right, I was wondering how it got my name, since I only gave it a UK SIM number. The matrix bridge doesn't do that because it doesn't have my contact list. However, now I know I can bother you ...

[James Bottomley @jejb_]

@vathpela @tehcaster No, it's still going. However, it's only 3G which means I'm practising with a 4G phone to survive the great 3G turn off in the US