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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. Jonas Termansen‏ @sortiecat 30 Sep 2017
      Replying to @laurentbercot

      It isn't really easy or exciting. Lots of tech debt. It's just general background work that slowly fixes mistakes.

      1 reply 0 retweets 0 likes
    2. Jonas Termansen‏ @sortiecat 30 Sep 2017
      Replying to @sortiecat @laurentbercot

      It's hard to know when one is done making the system secure. Probably never happens.

      1 reply 0 retweets 0 likes
    3. Jonas Termansen‏ @sortiecat 30 Sep 2017
      Replying to @sortiecat @laurentbercot

      Truthfully only single users will be using it for now. I look forward to sandboxing and multiuser though.

      2 replies 0 retweets 0 likes
    4. Rich Felker‏ @RichFelker 30 Sep 2017
      Replying to @sortiecat @laurentbercot

      This isn't necessarily bad. There's an argument to be made that multiuser is obsolete, obsoleted by containers.

      2 replies 0 retweets 2 likes
    5. Jonas Termansen‏ @sortiecat 3 Oct 2017
      Replying to @RichFelker @laurentbercot

      Absolutely. I do need account separation to work. But the 1 user = 1 account is a bit outdated now that we run partially trusted apps.

      1 reply 0 retweets 0 likes
    6. Jonas Termansen‏ @sortiecat 3 Oct 2017
      Replying to @sortiecat @RichFelker

      Still, I'm doing the traditional thing first, it has predictable results. I'd like to explore other account models though in the future.

      1 reply 0 retweets 0 likes
    7. Jonas Termansen‏ @sortiecat 3 Oct 2017
      Replying to @sortiecat @RichFelker

      One of the thoughts I toyed with was subusers, where there's a main user that's like root to a set of subusers. Each app is a subuser then.

      2 replies 0 retweets 0 likes
    8. Laurent Bercot‏ @laurentbercot 4 Oct 2017
      Replying to @sortiecat @RichFelker

      Yes, I've thought about that model for a while. The Unix account model is insufficient. One person/app/... needs several uids.

      2 replies 0 retweets 1 like
    9. Rich Felker‏ @RichFelker 4 Oct 2017
      Replying to @laurentbercot @sortiecat

      Even multiple uids don't help. If the threat model is malicious apps tracking & stealing PI, you need zero view of outside environment.

      2 replies 0 retweets 0 likes
    10. Jonas Termansen‏ @sortiecat 4 Oct 2017
      Replying to @RichFelker @laurentbercot

      Absolutely. uids just enumerate security contexts (Sortix has 64-bit uid_t). You need strong restrictions on what such users can do.

      2 replies 0 retweets 0 likes
      Rich Felker‏ @RichFelker 4 Oct 2017
      Replying to @sortiecat @laurentbercot

      Not even that. All uids still share way too much to be real security contexts. (pid space, filesystem, ...)

      1:23 PM - 4 Oct 2017
      • 1 Like
      • Jonas Termansen
      1 reply 0 retweets 1 like
        1. Jonas Termansen‏ @sortiecat 4 Oct 2017
          Replying to @RichFelker @laurentbercot

          Exactly.

          0 replies 0 retweets 0 likes
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