/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM skb

#if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SKB_H

#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/tracepoint.h>

#undef FN
#define FN(reason)      TRACE_DEFINE_ENUM(SKB_DROP_REASON_##reason);
DEFINE_DROP_REASON(FN, FN)

#undef FN
#undef FNe
#define FN(reason)      { SKB_DROP_REASON_##reason, #reason },
#define FNe(reason)     { SKB_DROP_REASON_##reason, #reason }

/*
 * Tracepoint for free an sk_buff:
 */
TRACE_EVENT(kfree_skb,

        TP_PROTO(struct sk_buff *skb, void *location,
                 enum skb_drop_reason reason, struct sock *rx_sk),

        TP_ARGS(skb, location, reason, rx_sk),

        TP_STRUCT__entry(
                __field(void *,         skbaddr)
                __field(void *,         location)
                __field(void *,         rx_sk)
                __field(unsigned short, protocol)
                __field(enum skb_drop_reason,   reason)
        ),

        TP_fast_assign(
                __entry->skbaddr = skb;
                __entry->location = location;
                __entry->rx_sk = rx_sk;
                __entry->protocol = ntohs(skb->protocol);
                __entry->reason = reason;
        ),

        TP_printk("skbaddr=%p rx_sk=%p protocol=%u location=%pS reason: %s",
                  __entry->skbaddr, __entry->rx_sk, __entry->protocol,
                  __entry->location,
                  __print_symbolic(__entry->reason,
                                   DEFINE_DROP_REASON(FN, FNe)))
);

#undef FN
#undef FNe

TRACE_EVENT(consume_skb,

        TP_PROTO(struct sk_buff *skb, void *location),

        TP_ARGS(skb, location),

        TP_STRUCT__entry(
                __field(        void *, skbaddr)
                __field(        void *, location)
        ),

        TP_fast_assign(
                __entry->skbaddr = skb;
                __entry->location = location;
        ),

        TP_printk("skbaddr=%p location=%pS", __entry->skbaddr, __entry->location)
);

TRACE_EVENT(skb_copy_datagram_iovec,

        TP_PROTO(const struct sk_buff *skb, int len),

        TP_ARGS(skb, len),

        TP_STRUCT__entry(
                __field(        const void *,           skbaddr         )
                __field(        int,                    len             )
        ),

        TP_fast_assign(
                __entry->skbaddr = skb;
                __entry->len = len;
        ),

        TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len)
);

#endif /* _TRACE_SKB_H */

/* This part must be outside protection */
#include <trace/define_trace.h>