Webconntrack provides a full featured userspace interface to the netfilter connection tracking system that is intended to replace the old /proc/net/ip_conntrack interface. This tool can … WebThis tool can be used to search, list, inspect and maintain the connection tracking subsystem of the Linux kernel. Using conntrack, you can dump a list of all (or a filtered …
linux/nf_conntrack_netlink.c at master · torvalds/linux · …
WebMay 4, 2015 · Based on the port/dev, the skb is marked with a unique tenant id and directs the packets to the SNAT zone, where the conntracker stores the skb->mark in the ct->mark and matches original traffic on the flextuple. A unique entry for reply traffic with the public IP/port mapping is created. WebSpecifically, using the conntrack command line tool and conntrackd at the same time can trigger unconsistencies. This patch also modifies the event cache infrastructure to pass the process PID and the ECHO flag to nfnetlink_send () to report back to userspace if the process that triggered the change needs so. china tech ban
conntrack-tools: Netfilter
WebSep 10, 2024 · nf_conntrack的操作是非常典型的,大体上分为了创建,删除,查询,更新这么几类,它们在整个协议栈以及Netfilter框架中的位置如下图所示: 如图可见,我们可以得出以下的结论: nf_conntrack使用了全局链表 (其实是两张表,一张正向元组表,一张反向元组表) nf_conntrack的表项查询是非常高效的,因为它仅采用了Netfilter的RCU锁以及自身 … WebThe conntrack utility provides a replacement for the limited /proc/net/nf_conntrack interface. With conntrack, you can list, update and delete the existing flow entries; you … http://visa.lab.asu.edu/gitlab/fstrace/android-kernel-msm-hammerhead-3.4-marshmallow-mr3/blob/a00f1f3686d6a062b5295c092a9dff059adbdbf5/net/netfilter/nf_conntrack_netlink.c china tech advances