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f134539c02
Knowing the value of execname during these probes is of some value even if it is commonly the interrupt kernel thread (intr[12]) -- quite often it is not, but that depends on the probe. Sponsored by: Smule, Inc.
76 lines
1.8 KiB
Bash
76 lines
1.8 KiB
Bash
# -*- tab-width: 4 -*- ;; Emacs
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# vi: set filetype=sh tabstop=8 shiftwidth=8 noexpandtab :: Vi/ViM
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############################################################ IDENT(1)
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#
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# $Title: dwatch(8) module for dtrace_ip(4) $
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# $Copyright: 2014-2018 Devin Teske. All rights reserved. $
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# $FreeBSD$
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#
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############################################################ DESCRIPTION
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#
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# Display interface name and bytes sent/received when IP I/O occurs
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#
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############################################################ PROBE
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case "$PROFILE" in
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ip) : ${PROBE:=ip:::send, ip:::receive} ;;
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*) : ${PROBE:=ip:::${PROFILE#ip-}}
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esac
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############################################################ ACTIONS
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exec 9<<EOF
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this string flow;
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this string if_name;
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this string local;
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this string remote;
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this u_char recv;
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this uint32_t length;
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$PROBE /* probe ID $ID */
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{${TRACE:+
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printf("<$ID>");
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}
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/*
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* dtrace_ip(4)
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*/
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this->recv = probename == "receive" ? 1 : 0;
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this->flow = this->recv ? "<-" : "->";
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/*
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* ipinfo_t *
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*/
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this->length = (uint32_t)args[2]->ip_plength;
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this->local = this->recv ? args[2]->ip_daddr : args[2]->ip_saddr;
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this->remote = this->recv ? args[2]->ip_saddr : args[2]->ip_daddr;
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/*
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* ifinfo_t *
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*/
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this->if_name = args[3]->if_name;
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}
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EOF
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ACTIONS=$( cat <&9 )
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ID=$(( $ID + 1 ))
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############################################################ EVENT DETAILS
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if [ ! "$CUSTOM_DETAILS" ]; then
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exec 9<<EOF
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/*
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* Print network I/O details
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*/
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printf("%s %s %s %s %u byte%s",
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this->if_name,
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this->local,
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this->flow,
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this->remote,
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this->length,
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this->length == 1 ? "" : "s");
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EOF
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EVENT_DETAILS=$( cat <&9 )
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fi
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################################################################################
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# END
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################################################################################
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