gvisor
chromium
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gvisor | chromium | |
---|---|---|
64 | 224 | |
15,066 | 17,522 | |
2.8% | 2.3% | |
9.9 | 10.0 | |
4 days ago | 7 days ago | |
Go | ||
Apache License 2.0 | BSD 3-clause "New" or "Revised" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
gvisor
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Maestro: A Linux-compatible kernel in Rust
Isn't gVisor kind of this as well?
"gVisor is an application kernel for containers. It limits the host kernel surface accessible to the application while still giving the application access to all the features it expects. Unlike most kernels, gVisor does not assume or require a fixed set of physical resources; instead, it leverages existing host kernel functionality and runs as a normal process. In other words, gVisor implements Linux by way of Linux."
https://github.com/google/gvisor
- Google/Gvisor: Application Kernel for Containers
- GVisor: OCI Runtime with Application Kernel
- How to Escape a Container
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Faster Filesystem Access with Directfs
This sort of feels like seeing someone riding a bike and saying: why don’t they just get a car? The simple fact is that containers and VMs are quite different. Whether something uses VMX and friends or not is also a red herring, as gVisor also “rolls it own VMM” [1].
[1] https://github.com/google/gvisor/tree/master/pkg/sentry/plat...
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OS in Go? Why Not
There's two major production-ready Go-based operating system(-ish) projects:
- Google's gVisor[1] (a re-implementation of a significant subset of the Linux syscall ABI for isolation, also mentioned in the article)
- USBArmory's Tamago[2] (a single-threaded bare-metal Go runtime for SOCs)
Both of these are security-focused with a clear trade off: sacrifice some performance for memory safe and excellent readability (and auditability). I feel like that's the sweet spot for low-level Go - projects that need memory safety but would rather trade some performance for simplicity.
[1]: https://github.com/google/gvisor
[2]: https://github.com/usbarmory/tamago
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Tunwg: Expose your Go HTTP servers online with end to end TLS
It uses gVisor to create a TCP/IP stack in userspace, and starts a wireguard interface on it, which the HTTP server from http.Serve listens on. The library will print a URL after startup, where you can access your server. You can create multiple listeners in one binary.
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How does go playground work?
The playground compiles the program with GOOS=linux, GOARCH=amd64 and runs the program with gVisor. Detailed documentation is available at the gVisor site.
- Searchable Linux Syscall Table for x86 and x86_64
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Multi-tenancy in Kubernetes
You could use a container sandbox like gVisor, light virtual machines as containers (Kata containers, firecracker + containerd) or full virtual machines (virtlet as a CRI).
chromium
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Demystifying the Shadow DOM
One of the unexpected use of shadow DOMs for me was a document generated for image resource URLs [1], because the HTML standard apparently specifies the exact DOM structure of the generated document except for the `` element [2].
[1] https://github.com/chromium/chromium/blob/f02ca73/third_part...
[2] https://html.spec.whatwg.org/multipage/document-lifecycle.ht...
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Detect when your installed Chrome extensions have changed owners
Recently my favorite open source mouse gestures extension SmartUp Gestures was taken over by some shady entity (with github no longer being updated of course).
I opened Chrome ticket that they should ask to re-enable extension when ownership changes. They just closed the ticket replying with this link:
https://chromium.googlesource.com/chromium/src/+/main/extens...
:(
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Supermium – Chromium fork for Win 2003 and newer
Hmm. It looks like files with the .lnk or .pif file extension can only be downloaded on a user gesture: https://chromium.googlesource.com/chromium/src/+/39841e54180...
So it can't be done silently. Although, I do wish the type was marked "DANGEROUS" a la dll files.
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New Linux glibc flaw lets attackers get root on major distros
On Linux, Chromium uses setuid or user namespaces to restrict the access of sandboxed components and seccomp-bpf to reduce the kernel attack surface.
Check out the Chromium docs on this topic: https://chromium.googlesource.com/chromium/src/+/HEAD/docs/l...
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Microsoft Edge ignores user wishes, slurps tabs from Chrome without permission
You can also disable JIT in Firefox by setting javascript.options.baselinejit to false in about:config, although you won't get CET.
[1] https://github.com/chromium/chromium/blob/12c232c43ce7324d30...
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Apple Announces Changes to iOS, Safari, and the App Store in the European Union
Chromium targets iOS already: https://chromium.googlesource.com/chromium/src/+/main/docs/i...
- We build X.509 chains so you don't have to
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Google Is Tracking You Even in Incognito Mode, New Disclaimer Is Up
For the sake of completeness, I've traced the evolution of the notice over time:
From 2008-07-26: "Going incognito doesn't affect the behavior of other people, servers, or software. Be wary of: / • Websites that collect or share information about you / • Internet service providers or employers that track the pages you visit / • Malicious software that tracks your keystrokes in exchange for free smileys / • Surveillance by secret agents / • People standing behind you" (https://chromium.googlesource.com/chromium/src/+/09911bf300f...)
From 2013-12-07: "Going incognito doesn't affect the behavior of other people, servers, software, or people standing behind you." (https://chromium.googlesource.com/chromium/src/+/c5e36c57178...)
From 2013-12-13: "However, you aren't invisible. Going incognito doesn't hide your browsing from your employer, your internet service provider, or the websites you visit." (https://chromium.googlesource.com/chromium/src/+/70821506825...)
From 2014-02-27: "However, you aren't invisible. Going incognito doesn't hide your browsing from your employer, your internet service provider, governments and other sophisticated attackers, or the websites you visit." (https://chromium.googlesource.com/chromium/src/+/ab54bd65701...)
From 2014-04-29: "Going incognito doesn't hide your browsing from your employer, your internet service provider, or the websites you visit." (https://chromium.googlesource.com/chromium/src/+/eb09a62ef40...)
From 2016-01-15: "However, you aren't invisible. Going incognito doesn’t hide your browsing from your employer, your internet service provider, or the websites you visit." (https://chromium.googlesource.com/chromium/src/+/b7dac1a6a79...)
From 2017-02-27: "Your activity might still be visible to: / • Websites you visit / • Your employer / • Your internet service provider" (https://chromium.googlesource.com/chromium/src/+/cfe102adddc...)
From 2017-03-29: "Your activity might still be visible to: / • Websites you visit / • Your employer or school / • Your internet service provider" (https://chromium.googlesource.com/chromium/src/+/7ca3ccf74e8...)
(Note that some of these were behind a feature flag for a few months.) Also, it looks like they've been intending to modify the new-tab page text for Incognito windows for some time, as part of the "Revamped Incognito NTP" project. You can view the modified text with 'chromium --enable-features=IncognitoNtpRevamp':
From 2021-08-13: "What Incognito doesn't do / Incognito does not make you invisible online: / • Sites know when you visit them / • Employers or schools can track browsing activity / • Internet service providers may monitor web traffic" (https://chromium.googlesource.com/chromium/src/+/e6ae57ba385...)
From 2022-01-25: "What Incognito doesn't do / Incognito does not make you invisible online: / • Sites and the services they use can see visits / • Employers or schools can track browsing activity / • Internet service providers can monitor web traffic" (https://chromium.googlesource.com/chromium/src/+/8b349f6c984...)
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What Progressive Web App (PWA) Can Do Today
Blink can now be compiled for iOS, but without JIT or WASM:
https://chromium.googlesource.com/chromium/src/+/main/docs/i...
https://bugs.chromium.org/p/chromium/issues/detail?id=141170...
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People like me are why you shouldn't run a hosting company
I think its weird that Vercel has this limit. There is no practical reason I can think of for having such a limit on URL characters that is so small. Chrome suggests a 2MB limit[0] for example. The platform itself doesn't have one, and Firefox I believe if memory serves (I can't find the source for this claim atm) is 1 MB effectively, and I don't think Safari is any lower than that either (and may well be more inline with Chrome on this, at 2 MB)
[0]: https://chromium.googlesource.com/chromium/src/+/master/docs...
What are some alternatives?
firecracker - Secure and fast microVMs for serverless computing.
ungoogled-chromium - Google Chromium, sans integration with Google
podman - Podman: A tool for managing OCI containers and pods.
WebKit - Home of the WebKit project, the browser engine used by Safari, Mail, App Store and many other applications on macOS, iOS and Linux.
wsl-vpnkit - Provides network connectivity to WSL 2 when blocked by VPN
termux-packages - A package build system for Termux.
kata-containers - Kata Containers is an open source project and community working to build a standard implementation of lightweight Virtual Machines (VMs) that feel and perform like containers, but provide the workload isolation and security advantages of VMs. https://katacontainers.io/
bromite - Bromite is a Chromium fork with ad blocking and privacy enhancements; take back your browser!
sysbox - An open-source, next-generation "runc" that empowers rootless containers to run workloads such as Systemd, Docker, Kubernetes, just like VMs.
brave-browser - Brave browser for Android, iOS, Linux, macOS, Windows.
containerd - An open and reliable container runtime
gecko-dev - Read-only Git mirror of the Mercurial gecko repositories at https://hg.mozilla.org. How to contribute: https://firefox-source-docs.mozilla.org/contributing/contribution_quickref.html