diff options
| author |  Jason Xing <kernelxing@tencent.com>
| 2024-04-25 11:13:40 +0800 |
|---|---|---|
| committer |  Paolo Abeni <pabeni@redhat.com>
| 2024-04-26 15:34:01 +0200 |
| commit | b533fb9cf4f7c6ca2aa255a5a1fdcde49fff2b24 (patch) | |
| tree | 3441c70fb71b9bb73af14f90af4c1ece881d4d23 /include/trace | |
| parent | mptcp: introducing a helper into active reset logic (diff) | |
| download | linux-b533fb9cf4f7c6ca2aa255a5a1fdcde49fff2b24.tar.gz linux-b533fb9cf4f7c6ca2aa255a5a1fdcde49fff2b24.tar.bz2 linux-b533fb9cf4f7c6ca2aa255a5a1fdcde49fff2b24.zip | |
rstreason: make it work in trace world
At last, we should let it work by introducing this reset reason in
trace world.
One of the possible expected outputs is:
... tcp_send_reset: skbaddr=xxx skaddr=xxx src=xxx dest=xxx
state=TCP_ESTABLISHED reason=NOT_SPECIFIED
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/tcp.h | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/include/trace/events/tcp.h b/include/trace/events/tcp.h index 5c04a61a11c2..49b5ee091cf6 100644 --- a/include/trace/events/tcp.h +++ b/include/trace/events/tcp.h @@ -11,6 +11,7 @@ #include <net/ipv6.h> #include <net/tcp.h> #include <linux/sock_diag.h> +#include <net/rstreason.h> /* * tcp event with arguments sk and skb @@ -74,20 +75,32 @@ DEFINE_EVENT(tcp_event_sk_skb, tcp_retransmit_skb, TP_ARGS(sk, skb) ); +#undef FN +#define FN(reason) TRACE_DEFINE_ENUM(SK_RST_REASON_##reason); +DEFINE_RST_REASON(FN, FN) + +#undef FN +#undef FNe +#define FN(reason) { SK_RST_REASON_##reason, #reason }, +#define FNe(reason) { SK_RST_REASON_##reason, #reason } + /* * skb of trace_tcp_send_reset is the skb that caused RST. In case of * active reset, skb should be NULL */ TRACE_EVENT(tcp_send_reset, - TP_PROTO(const struct sock *sk, const struct sk_buff *skb), + TP_PROTO(const struct sock *sk, + const struct sk_buff *skb, + const enum sk_rst_reason reason), - TP_ARGS(sk, skb), + TP_ARGS(sk, skb, reason), TP_STRUCT__entry( __field(const void *, skbaddr) __field(const void *, skaddr) __field(int, state) + __field(enum sk_rst_reason, reason) __array(__u8, saddr, sizeof(struct sockaddr_in6)) __array(__u8, daddr, sizeof(struct sockaddr_in6)) ), @@ -113,14 +126,19 @@ TRACE_EVENT(tcp_send_reset, */ TP_STORE_ADDR_PORTS_SKB(skb, th, entry->daddr, entry->saddr); } + __entry->reason = reason; ), - TP_printk("skbaddr=%p skaddr=%p src=%pISpc dest=%pISpc state=%s", + TP_printk("skbaddr=%p skaddr=%p src=%pISpc dest=%pISpc state=%s reason=%s", __entry->skbaddr, __entry->skaddr, __entry->saddr, __entry->daddr, - __entry->state ? show_tcp_state_name(__entry->state) : "UNKNOWN") + __entry->state ? show_tcp_state_name(__entry->state) : "UNKNOWN", + __print_symbolic(__entry->reason, DEFINE_RST_REASON(FN, FNe))) ); +#undef FN +#undef FNe + /* * tcp event with arguments sk * |