honey-potion
bpftool
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| honey-potion | bpftool | |
|---|---|---|
| 6 | 2 | |
| 234 | 294 | |
| 2.1% | 10.9% | |
| 6.4 | 8.9 | |
| about 2 months ago | 11 days ago | |
| C | C | |
| GNU General Public License v3.0 only | GNU General Public License v3.0 or later |
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.
honey-potion
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Honey Potion: an eBPF backend for Elixir
Hi all! We are working on an eBPF backend for Elixir. It's called Honey Potion. The project is under development, but it is possible to write some useful programs at this point. For instance, in this video, one of the guys involved explains how to write a program to count system calls.
We have been working on an eBPF backend for the Elixir programming language. The current implementation is on this branch. EBPF is a bit like a virtual machine that runs on the Linux kernel. EBPF programs are typically used to implement network applications. The most interesting aspect of the backend is that Linux uses a verifier to ensure that eBPF programs always terminate and only access memory within allocated bounds.
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Targetting C
Hi! We have been translating Elixir to C (which we translate to eBPF) in HoneyPotion. We used mostly Chapter 15 of Appel's Modern Compiler Implementation in Java to implement the code generator (that's "15. Functional Programming Languages"). I think the choice of C has been good thus far. The implementation of Elixir's pattern matching took much work, but if we had chosen a higher level target, we would still have to translate that to eBPF. Here's the entry point for the translator.
- Writing eBPF Programs with Elixir
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Suggestion for a backend?
We have been working on a tool that translates Elixir to eBPF. We actually translate eBPF to C. Now that we have more stuff working, I really wonder if generating C was a good choice.
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Intersection of PLs with the OS
That's exactly what Honey Potion does, when we translate Elixir into Linux' eBPF!
bpftool
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BPF for Hid Drivers
In the same way out-of-tree kernel modules are enforced to license themselves as GPL if they intend to use a lot (if not most) of the available functionality, eBPF programs fall under the same restrictions.
bpftool[0] allows to see which the programs are currently running in your system, their bpf asm instructions and whether they are GPL-compliant through `bpftool prog show`
Of course, we still need companies to actually release the source code of their eBPF programs somewhere for the promise to be fulfilled.
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How to tell what created/owns each BPF program running in my system ?
Your distro might not ship the newer version but source is available on Github so you don't have to pull the entire kernel repo to build it.
What are some alternatives?
fping - High performance ping tool
libbpf - Automated upstream mirror for libbpf stand-alone build.
pl0c - Self-hosting PL/0 to C compiler to teach basic compiler construction from a practical, hands-on perspective.
TripleCross - A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.
traffico - Shape your traffic the BPF way
libfirm - graph based intermediate representation and backend for optimising compilers
bmc-cache - In-kernel cache based on eBPF.
amacc - Small C Compiler generating ELF executable Arm architecture, supporting JIT execution
bpftune - bpftune uses BPF to auto-tune Linux systems
linux-nitrous - Mirror of https://gitlab.com/xdevs23/linux-nitrous
pwru - Packet, where are you? -- eBPF-based Linux kernel networking debugger