Jason Xing 19822a980e trace: tcp: fully support trace_tcp_send_reset ... Prior to this patch, what we can see by enabling trace_tcp_send is only happening under two circumstances: 1) active rst mode 2) non-active rst mode and based on the full socket That means the inconsistency occurs if we use tcpdump and trace simultaneously to see how rst happens. It's necessary that we should take into other cases into considerations, say: 1) time-wait socket 2) no socket ... By parsing the incoming skb and reversing its 4-tuple can we know the exact 'flow' which might not exist. Samples after applied this patch: 1. tcp_send_reset: skbaddr=XXX skaddr=XXX src=ip:port dest=ip:port state=TCP_ESTABLISHED 2. tcp_send_reset: skbaddr=000...000 skaddr=XXX src=ip:port dest=ip:port state=UNKNOWN Note: 1) UNKNOWN means we cannot extract the right information from skb. 2) skbaddr/skaddr could be 0 Signed-off-by: Jason Xing <kernelxing@tencent.com> Link: https://lore.kernel.org/r/20240401073605.37335-3-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-04-03 19:26:14 -07:00
..
events	trace: tcp: fully support trace_tcp_send_reset	2024-04-03 19:26:14 -07:00
misc	NFS client updates for Linux 6.9	2024-03-16 11:44:00 -07:00
stages	tracing: Just use strcmp() for testing __string() and __assign_str() match	2024-03-19 11:23:30 -07:00
bpf_probe.h	bpf: pass whole link instead of prog when triggering raw tracepoint	2024-03-19 23:05:33 -07:00
define_custom_trace.h
define_trace.h
perf.h	perf/tracing: Use stage6 of tracing to not duplicate macros	2023-01-25 10:31:24 -05:00
syscall.h
trace_custom_events.h
trace_events.h