Aimed at bringing regulation to the private rented sector, the code would require landlords to follow certain service standards, to ensure that adverts for properties are fair and they are meeting their legal obligations.Roxburgh,...
Writing BPF code in Rust 如果你做系统编程,你可能最近经常听说BPF。它是一种新的热门 Linux 技术,允许在内核中运行用户提供的程序。Netflix、Facebook、谷歌、Cloudflare 和其他许多公司都在使用它来实现快速的负载平衡、DDoS 缓解和性能监控等功能。 原文请看:https://blog.redsift.com/labs/writing-bpf-code-i...
refactor(bpf): Restructure BPF code 8cf3651 View details mozillazg merged commit 1d3d114 into master Dec 7, 2024 18 checks passed mozillazg deleted the refactor branch December 7, 2024 07:46 Sign up for free to join this conversation on GitHub. Already have an account? Sign in to ...
Make firewall bpf code multi-user aware Browse files The check is_system_uid should mirror the definition of core_uids in UserHandle.isCore until it is available to be read from mainline code. isUidNetworkingBlocked should also do the same. Test: All existing tests should pass...
内核源码树中tools/bpf/bpf_jit_disasm工具可用于从日志中提取JITcode, 然后反编译成x86汇编, 这样就能看到BPF指令翻译成x86的结果. 但是这个工具需要许多依赖, 安装在busybox中比较烦琐, 所以我直接用py反编译生成的指令 form pwn import *context(arch=&aposamd64&apos, os=&aposlinux&apos)def bpf_jit_disas...
最近学习ebpf看到篇样本分析"Tricephalic Hellkeeper: a tale of a passive backdoor",记录一下 隐蔽通信利用过滤特定包,类似有: cd00r、 Bvp47 这并不是多么高深、先级的技术,tcpdump、libpcap都有bpf的身影, Once compiled, such a filter can be instantiated using eitherlibpcap (pcap_setfilter), or ...
Notes on BPF (5) - BPF bytecodes and the BPF verifier Oracle Linux kernel developer Alan Maguire presents this six-part series on BPF, wherein he presents an in depth look at the kernel's "Berkeley Packet Filter" -- a useful and extensible kernel functio
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(output from `bpf_asm` or * `tcpdump -iem1 -ddd port 22 | tr '\n' ','` to load as filter) * 3) > load pcap foo.pcap * 4) > run <n>/disassemble/dump/quit (self-explanatory) * 5) > breakpoint 2 (sets bp at loaded BPF insns 2, do `run` then; * multiple bps can...
BPF bytecode $ tcpdump -p -ni eno1 -d "ip and udp"(000) ldh [12](001) jeq #0x800 jt 2 jf 5(002) ldb [23](003) jeq #0x11 jt 4 jf 5(004) ret #262144(005) ret #0$ tcpdump -p -ni eth0 -ddd "ip and udp"|tr "\n" ","6,40 0 0 12,21 0 3 2048,48 0 0...