1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: Generic dynamic event - add/remove eprobe events 4# requires: dynamic_events events/syscalls/sys_enter_openat "<attached-group>.<attached-event> [<args>]":README 5 6echo 0 > events/enable 7 8clear_dynamic_events 9 10SYSTEM="syscalls" 11EVENT="sys_enter_openat" 12FIELD="filename" 13EPROBE="eprobe_open" 14OPTIONS="file=+0(\$filename):ustring" 15echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 16 17grep -q "$EPROBE" dynamic_events 18test -d events/eprobes/$EPROBE 19 20echo 1 > events/eprobes/$EPROBE/enable 21ls 22echo 0 > events/eprobes/$EPROBE/enable 23 24content=`grep '^ *ls-' trace | grep 'file='` 25nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."' -e '(fault)' ` || true 26 27if [ -z "$content" ]; then 28 exit_fail 29fi 30 31if [ ! -z "$nocontent" ]; then 32 exit_fail 33fi 34 35echo "-:$EPROBE" >> dynamic_events 36 37! grep -q "$EPROBE" dynamic_events 38! test -d events/eprobes/$EPROBE 39 40# test various ways to remove the probe (already tested with just event name) 41 42# With group name 43echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 44grep -q "$EPROBE" dynamic_events 45test -d events/eprobes/$EPROBE 46echo "-:eprobes/$EPROBE" >> dynamic_events 47! grep -q "$EPROBE" dynamic_events 48! test -d events/eprobes/$EPROBE 49 50# With group name and system/event 51echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 52grep -q "$EPROBE" dynamic_events 53test -d events/eprobes/$EPROBE 54echo "-:eprobes/$EPROBE $SYSTEM/$EVENT" >> dynamic_events 55! grep -q "$EPROBE" dynamic_events 56! test -d events/eprobes/$EPROBE 57 58# With just event name and system/event 59echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 60grep -q "$EPROBE" dynamic_events 61test -d events/eprobes/$EPROBE 62echo "-:$EPROBE $SYSTEM/$EVENT" >> dynamic_events 63! grep -q "$EPROBE" dynamic_events 64! test -d events/eprobes/$EPROBE 65 66# With just event name and system/event and options 67echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 68grep -q "$EPROBE" dynamic_events 69test -d events/eprobes/$EPROBE 70echo "-:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 71! grep -q "$EPROBE" dynamic_events 72! test -d events/eprobes/$EPROBE 73 74# With group name and system/event and options 75echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 76grep -q "$EPROBE" dynamic_events 77test -d events/eprobes/$EPROBE 78echo "-:eprobes/$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 79! grep -q "$EPROBE" dynamic_events 80! test -d events/eprobes/$EPROBE 81 82# Finally make sure what is in the dynamic_events file clears it too 83echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 84LINE=`sed -e '/$EPROBE/s/^e/-/' < dynamic_events` 85test -d events/eprobes/$EPROBE 86echo "-:eprobes/$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 87! grep -q "$EPROBE" dynamic_events 88! test -d events/eprobes/$EPROBE 89 90if grep -q "e\[:\[<group>/]\[<event>]]" README; then 91 echo "e:mygroup/ $SYSTEM/$EVENT $OPTIONS" >> dynamic_events 92 test -d events/mygroup 93 echo "-:mygroup/" >> dynamic_events 94 ! test -d events/mygroup 95fi 96 97clear_trace 98