include/instrumentation/events/skb.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM skb
   4
   5 #if !defined(LTTNG_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define LTTNG_TRACE_SKB_H
   7
   8 #include <lttng/tracepoint-event.h>
   9 #include <linux/skbuff.h>
  10 #include <linux/netdevice.h>
  11 #include <lttng/kernel-version.h>
  12
  13 /*
  14  * Tracepoint for free an sk_buff:
  15  */
  16 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,17,0) \
  17         || LTTNG_KERNEL_RANGE(5,15,58, 5,16,0) \
  18         || LTTNG_RHEL_KERNEL_RANGE(4,18,0,477,10,1, 4,19,0,0,0,0))
  19 LTTNG_TRACEPOINT_ENUM(skb_drop_reason,
  20         TP_ENUM_VALUES(
  21                 ctf_enum_value("NOT_SPECIFIED", SKB_DROP_REASON_NOT_SPECIFIED)
  22                 ctf_enum_value("NO_SOCKET",     SKB_DROP_REASON_NO_SOCKET)
  23                 ctf_enum_value("PKT_TOO_SMALL", SKB_DROP_REASON_PKT_TOO_SMALL)
  24                 ctf_enum_value("TCP_CSUM",      SKB_DROP_REASON_TCP_CSUM)
  25                 ctf_enum_value("SOCKET_FILTER", SKB_DROP_REASON_SOCKET_FILTER)
  26                 ctf_enum_value("UDP_CSUM",      SKB_DROP_REASON_UDP_CSUM)
  27                 ctf_enum_value("MAX",           SKB_DROP_REASON_MAX)
  28         )
  29 )
  30 #elif (LTTNG_RHEL_KERNEL_RANGE(5,14,0,70,0,0, 5,15,0,0,0,0))
  31 LTTNG_TRACEPOINT_ENUM(skb_drop_reason,
  32         TP_ENUM_VALUES(
  33                 ctf_enum_value("NOT_SPECIFIED", SKB_DROP_REASON_NOT_SPECIFIED)
  34                 ctf_enum_value("NO_SOCKET",     SKB_DROP_REASON_NO_SOCKET)
  35                 ctf_enum_value("PKT_TOO_SMALL", SKB_DROP_REASON_PKT_TOO_SMALL)
  36                 ctf_enum_value("TCP_CSUM",      SKB_DROP_REASON_TCP_CSUM)
  37                 ctf_enum_value("UDP_CSUM",      SKB_DROP_REASON_UDP_CSUM)
  38                 ctf_enum_value("MAX",           SKB_DROP_REASON_MAX)
  39         )
  40 )
  41 #endif
  42
  43 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,17,0) \
  44         || LTTNG_KERNEL_RANGE(5,15,58, 5,16,0) \
  45         || LTTNG_RHEL_KERNEL_RANGE(5,14,0,70,0,0, 5,15,0,0,0,0) \
  46         || LTTNG_RHEL_KERNEL_RANGE(4,18,0,477,10,1, 4,19,0,0,0,0))
  47 LTTNG_TRACEPOINT_EVENT_MAP(kfree_skb,
  48
  49         skb_kfree,
  50
  51         TP_PROTO(struct sk_buff *skb, void *location,
  52                 enum skb_drop_reason reason),
  53
  54         TP_ARGS(skb, location, reason),
  55
  56         TP_FIELDS(
  57                 ctf_integer_hex(void *, skbaddr, skb)
  58                 ctf_integer_hex(void *, location, location)
  59                 ctf_integer_network(unsigned short, protocol, skb->protocol)
  60                 ctf_enum(skb_drop_reason, uint8_t, reason, reason)
  61         )
  62 )
  63 #else
  64 LTTNG_TRACEPOINT_EVENT_MAP(kfree_skb,
  65
  66         skb_kfree,
  67
  68         TP_PROTO(struct sk_buff *skb, void *location),
  69
  70         TP_ARGS(skb, location),
  71
  72         TP_FIELDS(
  73                 ctf_integer_hex(void *, skbaddr, skb)
  74                 ctf_integer_hex(void *, location, location)
  75                 ctf_integer_network(unsigned short, protocol, skb->protocol)
  76         )
  77 )
  78 #endif
  79
  80 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,3,0))
  81 LTTNG_TRACEPOINT_EVENT_MAP(consume_skb,
  82
  83         skb_consume,
  84
  85         TP_PROTO(struct sk_buff *skb, void *location),
  86
  87         TP_ARGS(skb, location),
  88
  89         TP_FIELDS(
  90                 ctf_integer_hex(void *, skbaddr, skb)
  91                 ctf_integer_hex(void *, location, location)
  92         )
  93 )
  94 #else
  95 LTTNG_TRACEPOINT_EVENT_MAP(consume_skb,
  96
  97         skb_consume,
  98
  99         TP_PROTO(struct sk_buff *skb),
 100
 101         TP_ARGS(skb),
 102
 103         TP_FIELDS(
 104                 ctf_integer_hex(void *, skbaddr, skb)
 105         )
 106 )
 107 #endif
 108
 109 LTTNG_TRACEPOINT_EVENT(skb_copy_datagram_iovec,
 110
 111         TP_PROTO(const struct sk_buff *skb, int len),
 112
 113         TP_ARGS(skb, len),
 114
 115         TP_FIELDS(
 116                 ctf_integer_hex(const void *, skbaddr, skb)
 117                 ctf_integer(int, len, len)
 118         )
 119 )
 120
 121 #endif /* LTTNG_TRACE_SKB_H */
 122
 123 /* This part must be outside protection */
 124 #include <lttng/define_trace.h>