/usr/share/systemtap/tapset/linux/udp.stp is in systemtap-common 2.6-0.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | // UDP tapset
// Copyright (C) 2006 Intel Corporation.
// Copyright (C) 2013 Red Hat, Inc.
//
// This file is part of systemtap, and is free software. You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
// <tapsetdescription>
// This family of probe points is used to probe events that occur in the UDP layer.
// </tapsetdescription>
/* Helper functions analogous (or even identical) those in tcp.stp */
function __get_skb_udphdr:long (skb:long) { return __get_skb_tcphdr(skb) }
function __udp_sock_sport (sock) { return __tcp_sock_sport (sock) }
function __udp_sock_dport (sock) { return __tcp_sock_dport (sock) }
function __udp_skb_dport(udphdr) { return ntohs(@cast(udphdr, "udphdr")->dest) }
function __udp_skb_sport(udphdr) { return ntohs(@cast(udphdr, "udphdr")->source) }
/**
* probe udp.sendmsg - Fires whenever a process sends a UDP message
* @name: The name of this probe
* @sock: Network socket used by the process
* @size: Number of bytes sent by the process
* @family: IP address family
* @saddr: A string representing the source IP address
* @daddr: A string representing the destination IP address
* @sport: UDP source port
* @dport: UDP destination port
*
* Context:
* The process which sent a UDP message
*/
probe udp.sendmsg = kernel.function("udp_sendmsg") {
name = "udp.sendmsg"
sock = $sk
size = $len
%( systemtap_v >= "2.3" %?
family = __ip_sock_family($sk)
saddr = format_ipaddr(__ip_sock_saddr($sk), __ip_sock_family($sk))
daddr = format_ipaddr(__ip_sock_daddr($sk), __ip_sock_family($sk))
sport = __udp_sock_sport($sk)
dport = __udp_sock_dport($sk)
%)
}
/**
* probe udp.sendmsg.return - Fires whenever an attempt to send a UDP message is completed
* @name: The name of this probe
* @size: Number of bytes sent by the process
*
* Context:
* The process which sent a UDP message
*/
probe udp.sendmsg.return = kernel.function("udp_sendmsg").return {
name = "udp.sendmsg"
size = $return
%( systemtap_v >= "2.3" %?
family = __ip_sock_family($sk)
saddr = format_ipaddr(__ip_sock_saddr($sk), __ip_sock_family($sk))
daddr = format_ipaddr(__ip_sock_daddr($sk), __ip_sock_family($sk))
sport = __udp_sock_sport($sk)
dport = __udp_sock_dport($sk)
%)
}
/**
* probe udp.recvmsg - Fires whenever a UDP message is received
* @name: The name of this probe
* @sock: Network socket used by the process
* @size: Number of bytes received by the process
* @family: IP address family
* @saddr: A string representing the source IP address
* @daddr: A string representing the destination IP address
* @sport: UDP source port
* @dport: UDP destination port
*
* Context:
* The process which received a UDP message
*/
probe udp.recvmsg = kernel.function("udp_recvmsg") {
name = "udp.recvmsg"
sock = $sk
size = $len
%( systemtap_v >= "2.3" %?
family = __ip_sock_family($sk)
saddr = format_ipaddr(__ip_sock_saddr($sk), __ip_sock_family($sk))
daddr = format_ipaddr(__ip_sock_daddr($sk), __ip_sock_family($sk))
sport = __udp_sock_sport($sk)
dport = __udp_sock_dport($sk)
%)
}
/**
* probe udp.recvmsg.return - Fires whenever an attempt to receive a UDP message received is completed
* @name: The name of this probe
* @size: Number of bytes received by the process
* @family: IP address family
* @saddr: A string representing the source IP address
* @daddr: A string representing the destination IP address
* @sport: UDP source port
* @dport: UDP destination port
*
* Context:
* The process which received a UDP message
*/
probe udp.recvmsg.return = kernel.function("udp_recvmsg").return {
name = "udp.recvmsg"
size = $return
%( systemtap_v >= "2.3" %?
family = __ip_sock_family($sk)
saddr = format_ipaddr(__ip_sock_saddr($sk), __ip_sock_family($sk))
daddr = format_ipaddr(__ip_sock_daddr($sk), __ip_sock_family($sk))
sport = __udp_sock_sport($sk)
dport = __udp_sock_dport($sk)
%)
}
/**
* probe udp.disconnect - Fires when a process requests for a UDP disconnection
* @name: The name of this probe
* @sock: Network socket used by the process
* @flags: Flags (e.g. FIN, etc)
* @family: IP address family
* @saddr: A string representing the source IP address
* @daddr: A string representing the destination IP address
* @sport: UDP source port
* @dport: UDP destination port
*
* Context:
* The process which requests a UDP disconnection
*/
probe udp.disconnect = kernel.function("udp_disconnect") {
name = "udp.disconnect"
sock = $sk
flags = $flags
%( systemtap_v >= "2.3" %?
family = __ip_sock_family($sk)
saddr = format_ipaddr(__ip_sock_saddr($sk), __ip_sock_family($sk))
daddr = format_ipaddr(__ip_sock_daddr($sk), __ip_sock_family($sk))
sport = __udp_sock_sport($sk)
dport = __udp_sock_dport($sk)
%)
}
/**
* probe udp.disconnect.return - UDP has been disconnected successfully
* @name: The name of this probe
* @ret: Error code (0: no error)
* @family: IP address family
* @saddr: A string representing the source IP address
* @daddr: A string representing the destination IP address
* @sport: UDP source port
* @dport: UDP destination port
*
* Context:
* The process which requested a UDP disconnection
*/
probe udp.disconnect.return = kernel.function("udp_disconnect").return {
name = "udp.disconnect"
ret = $return
%( systemtap_v >= "2.3" %?
family = __ip_sock_family($sk)
saddr = format_ipaddr(__ip_sock_saddr($sk), __ip_sock_family($sk))
daddr = format_ipaddr(__ip_sock_daddr($sk), __ip_sock_family($sk))
sport = __udp_sock_sport($sk)
dport = __udp_sock_dport($sk)
%)
}
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