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9807080e21
Introducing entry_saddr and entry_daddr parameters in this macro for later use can help us record the reverse 4-tuple by analyzing the 4-tuple of the incoming skb when receiving. Signed-off-by: Jason Xing <kernelxing@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20240401073605.37335-2-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM udp
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#if !defined(_TRACE_UDP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_UDP_H
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#include <linux/udp.h>
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#include <linux/tracepoint.h>
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#include <trace/events/net_probe_common.h>
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TRACE_EVENT(udp_fail_queue_rcv_skb,
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TP_PROTO(int rc, struct sock *sk, struct sk_buff *skb),
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TP_ARGS(rc, sk, skb),
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TP_STRUCT__entry(
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__field(int, rc)
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__field(__u16, sport)
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__field(__u16, dport)
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__field(__u16, family)
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__array(__u8, saddr, sizeof(struct sockaddr_in6))
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__array(__u8, daddr, sizeof(struct sockaddr_in6))
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),
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TP_fast_assign(
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const struct udphdr *uh = (const struct udphdr *)udp_hdr(skb);
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__entry->rc = rc;
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/* for filtering use */
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__entry->sport = ntohs(uh->source);
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__entry->dport = ntohs(uh->dest);
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__entry->family = sk->sk_family;
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memset(__entry->saddr, 0, sizeof(struct sockaddr_in6));
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memset(__entry->daddr, 0, sizeof(struct sockaddr_in6));
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TP_STORE_ADDR_PORTS_SKB(skb, uh, __entry->saddr, __entry->daddr);
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),
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TP_printk("rc=%d family=%s src=%pISpc dest=%pISpc", __entry->rc,
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show_family_name(__entry->family),
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__entry->saddr, __entry->daddr)
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);
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#endif /* _TRACE_UDP_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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