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|
# -*- tab-width: 4 -*- ;; Emacs
# vi: set filetype=sh tabstop=8 shiftwidth=8 noexpandtab :: Vi/ViM
############################################################ IDENT(1)
#
# $Title: dwatch(8) module for dtrace_ip(4) $
# $Copyright: 2014-2018 Devin Teske. All rights reserved. $
#
############################################################ DESCRIPTION
#
# Display interface name and bytes sent/received when IP I/O occurs
#
############################################################ PROBE
case "$PROFILE" in
ip) : ${PROBE:=ip:::send, ip:::receive} ;;
*) : ${PROBE:=ip:::${PROFILE#ip-}}
esac
############################################################ ACTIONS
exec 9<<EOF
this string flow;
this string if_name;
this string local;
this string remote;
this u_char recv;
this uint32_t length;
$PROBE /* probe ID $ID */
{${TRACE:+
printf("<$ID>");
}
/*
* dtrace_ip(4)
*/
this->recv = probename == "receive" ? 1 : 0;
this->flow = this->recv ? "<-" : "->";
/*
* ipinfo_t *
*/
this->length = (uint32_t)args[2]->ip_plength;
this->local = this->recv ? args[2]->ip_daddr : args[2]->ip_saddr;
this->remote = this->recv ? args[2]->ip_saddr : args[2]->ip_daddr;
/*
* ifinfo_t *
*/
this->if_name = args[3]->if_name;
}
EOF
ACTIONS=$( cat <&9 )
ID=$(( $ID + 1 ))
############################################################ EVENT DETAILS
if [ ! "$CUSTOM_DETAILS" ]; then
exec 9<<EOF
/*
* Print network I/O details
*/
printf("%s %s %s %s %u byte%s",
this->if_name,
this->local,
this->flow,
this->remote,
this->length,
this->length == 1 ? "" : "s");
EOF
EVENT_DETAILS=$( cat <&9 )
fi
################################################################################
# END
################################################################################
|
