使用bpf*相关的工具抓捕tcp_send_active_reset()函数并打印堆栈即可,通过crash现场机器并输入“dis -l [addr]”可以得到具体的函数位置,比对源码就可以得知了。 可以使用bpftrace进行快速抓捕 sudo bpftrace -e 'k:tcp_send_active_reset { @[kstack()] = count(); }' 堆栈结果如图: 我们可以根据堆栈信息推算...
tcp_v4_send_reset() if (th->ack) { // 这里对应的就是上图中为何出现Seq==Ack rep.th.seq = th->ack_seq; } else { // 极小概率，如果出现，那么RST包的就没有Seq序列号 rep.th.ack = 1; rep.th.ack_seq = htonl(ntohl(th->seq) + th-...
To fix this, knowing how to reset TCP/IP on Windows 10 is a good trick to make your computer connect to network again. You can also fix no Internet connection, WiFi connected but no Internet access, etc. by resetting TCP/IP stack on Windows 10. Check below how to use Netsh commands ...
single_rstack:连接终止,收到了单个 RST+ACK 数据包(同时设置了 RST 和 ACK 标志) multiple_rstacks:连接终止,收到了多个 RST+ACK 数据包 rst_and_rstacks:连接终止,收到了 RST 和 RST+ACK 数据包的组合 zmap:SYN 数据包与 ZMap 扫描程序生成的数据包匹配 ...
By contrast, an abortive close uses the RST (Reset) message. If either side issues an RST, this means the entire connection is aborted and the TCP stack can throw away any queued data which has not been sent or received by either application. ...
data4.stack_id = stack_traces.get_stackid(ctx, 0); ipv4_events.perf_submit(ctx, &data4, sizeof(data4)); } return 0; } int trace_tcp_send_active_reset(struct pt_regs *ctx, struct sock *sk, unsigned int priority) { u32 pid = bpf_get_current_pid_tgid() >> 32; ...
By contrast, an abortive close uses the RST (Reset) message. If either side issues an RST, this means the entire connection is aborted and the TCP stack can throw away any queued data which has not been sent or received by either application. ...
data4.stack_id = stack_traces.get_stackid(ctx, 0); ipv4_events.perf_submit(ctx, &data4, sizeof(data4)); } return 0; } int trace_tcp_send_active_reset(struct pt_regs *ctx, struct sock *sk, unsigned int priority) { u32 pid = bpf_get_current_pid_tgid() >> 32; ...
TURN)3267.4.5InteractiveConnectivityEstablishment(ICE)3327.5ConfiguringPacket-FilteringFirewallsandNATs3347.5.1FirewallRules3357.5.2NAT Rules3377.5.3DirectInteractionwithNATsandFirewalls:UPnP,NAT-PMP, andPCP 3387.6NAT forIPv4/IPv6coexistenceandTransition3397.6.1Dual-StackLite(DS-Lite)3397.6.2...