/* 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),

    TP_ARGS(skb, location, reason),

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

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

    TP_printk("skbaddr=%p protocol=%u location=%pS reason: %s",
          __entry->skbaddr, __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>