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Source channel @lambdaexpression · Post #301 · 1月26日

DN42 access 本服务为那些无法轻松访问自身网络的用户以及希望体验 dn42 但又不想承担维护自有网络成本的用户提供 dn42 连接 默认情况下,地址从/96地址块中分配,如果您希望租用独立的/96前缀或更大的地址空间,请按照联系方式联系我 所有公开的PoP均已屏蔽来自中国境内的 IP 地址。如果您确实需要dn42 access,请与我联系并提供合理的理由 该服务由AS4242423377提供 - - - - - - - The service provides DN42 connectivity to members who cannot easily access their own networks, as well as to those who would like to explore DN42 without the overhead of maintaining their own network. By default, addresses are allocated from a /96 block. If you wish to lease a dedicated /96 prefix or a larger address space, please contact me using the methods provided in the contact information. All publicly accessible PoP are blocked for IPs originating from within China. DN42 access from within China is not publicly available. If you genuinely require access, please contact me and provide a valid justification. Hosted by AS4242423377. Policy 本服务需要花费时间和金钱才能运行,但为了您的利益,我们免费提供。使用本服务是一种特权,而非权利。您必须合理使用本服务,以确保其他用户也能继续享受同样的便利。任何滥用、误用或干扰服务或其他用户的行为都可能导致您的访问权限立即被暂停或终止。 滥用行为包括但不限于: - 过度使用资源 - 黑客攻击、病毒、木马等,或任何其他可能损害服务或对服务及其用户造成风险的干扰行为 - 传播可能导致民事或刑事责任的不良内容 - - - - - - - This service require real time and financial resources to operate, yet are provided free of charge for your benefit. Access to the services is a privilege, not a right. You must use the services responsibly and considerately to ensure that other users can continue to enjoy the same opportunities. Any misuse, abuse, or activities that disrupt the service or other users may result in immediate suspension or termination of access. Abuse could include, but is not limited to: - Excessive use of resources - Hacking, viruses, trojans etc or any other disruption that could harm or create risk to the services or its users - Distribution of objectional content that could create a civil or criminal liability PoP ## Toronto, Canada Prefix: fdb6:fc6a:e66c:724f:fad1:d2cf::/96 Zerotier: 4753cf475f65b0fb ## Los Angeles, USA coming soon #announcement#service

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Welcome to the Black Parade

@TheB1ackParade · Post #506 · 2024/03/05 03:58

莫名其妙忙起来了,随便记点免得忘了: 1. tproxy / bpf_sk_assign 对 established tcp 的性能影响是负的,因为设置上 skb->sk 会让 ip_rcv_core 里的 tcp_early_demux 检测失败,从而必须进路由系统。所以正确使用方法是只对 tcp syn 使用 tproxy/sk_assign。 2. 能不能优化 bpf_sk_assign,让它对 listening socket 的 assign 也能像 tcp_early_demux 一样?不能,因为 listening tcp socket 的 sk->sk_rx_dst 是 null,只有 established sk 才有这个 dst。 3. tcpdump ip6 and tcp 生成的 cbpf 是“错的”。它没考虑 ip6 extension。但是 tcpdump (libpcap) 有个对 v6 特别的过滤器: ip6 protochain 6 , 就迭代了 ip6 extension,四次,但是对大部分场景也够用。 4. 晦涩的逻辑。icmp6_host_handle 这个函数名看起来没啥,但是要是我告诉你它实际语义是:只需要在 ( ingress 方向) 或者 (防火墙启动时候的双向) 执行它,如果在 ingress 方向执行的时候不要反弹 icmp6,如果要反弹 icmp6 的话不要反弹 NS for node IP,但是也不要直接返回给内核栈而是继续执行剩余的 nodeport lb。我看着这个原本简单的函数从两个参数变成现在的五个,里外的 #ifdef 嵌套层层恐惧,真是美好的软件。

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KernelSU Next

@ksunext · Post #815 · 2025/07/20 20:11

kernel: guard syscall hook types - for kernel syscall hooks we need to pass additional guards for ksun (#ifdef CONFIG_KSU -> #if defined(CONFIG_KSU) && !defined(CONFIG_KSU_KPROBES_HOOK)) or else it will fail to build because of undefined symbol - reference https://github.com/KernelSU-Next/kernel_patches/blob/main/syscall_hook/min_scope_syscall_hooks_v1.4.patch https://github.com/KernelSU-Next/KernelSU-Next/commit/45ad73e9dd86a0ff04a02e73a8fc2dbc3160ee6c

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