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#!/bin/bash
#
# Copyright (C) - 2020 EfficiOS, inc
#
# This library is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; version 2.1 of the License.
#
# This library is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Test the `lttng add-trigger` command line interface.
CURDIR="$(dirname "$0")"
TESTDIR="$CURDIR/../../.."
# shellcheck source=../../../utils/utils.sh
source "$TESTDIR/utils/utils.sh"
plan_tests 295
FULL_LTTNG_BIN="${TESTDIR}/../src/bin/lttng/${LTTNG_BIN}"
# shellcheck disable=SC2119
start_lttng_sessiond_notap
tmp_stdout=$(mktemp -t test_parse_cli_trigger_stdout.XXXXXX)
tmp_stderr=$(mktemp -t test_parse_cli_trigger_stderr.XXXXXX)
uprobe_elf_binary="${TESTDIR}/utils/testapp/userspace-probe-elf-binary/.libs/userspace-probe-elf-binary"
function test_success ()
{
local test_name="$1"
local trigger_name="$2"
shift 2
diag "${FULL_LTTNG_BIN} add-trigger $*"
"${FULL_LTTNG_BIN}" add-trigger "$@" > "${tmp_stdout}" 2> "${tmp_stderr}"
ok $? "${test_name}: exit code is 0"
diff -u "${tmp_stdout}" <(echo "Added trigger \`$trigger_name\`.")
ok $? "${test_name}: expected stdout"
diff -u "${tmp_stderr}" /dev/null
ok $? "${test_name}: expected stderr"
}
function test_failure ()
{
local test_name="$1"
local error_msg="$2"
shift 2
diag "${FULL_LTTNG_BIN} add-trigger $*"
"${FULL_LTTNG_BIN}" add-trigger "$@" > "${tmp_stdout}" 2> "${tmp_stderr}"
isnt $? 0 "${test_name}: exit code is not 0"
diff -u "${tmp_stdout}" /dev/null
ok $? "${test_name}: expected stdout"
diff -u "${tmp_stderr}" <(echo "${error_msg}")
ok $? "${test_name}: expected stderr"
}
function test_mi ()
{
local tmp_stdout_raw
local tmp_expected_stdout
# Concretely the code used to serialize a trigger object is the same as
# the one used by the list command. Here we simply validate that a
# simple trigger is correctly generated.
tmp_stdout_raw=$(mktemp -t "tmp.${FUNCNAME[0]}_stdout.XXXXXX")
tmp_expected_stdout=$(mktemp -t "tmp.${FUNCNAME[0]}_expected_stdout.XXXXXX")
diag "${FULL_LTTNG_BIN} --mi=xml add-trigger"
cat > "${tmp_expected_stdout}" <<- EOF
<?xml version="1.0" encoding="UTF-8"?>
<command xmlns="https://lttng.org/xml/ns/lttng-mi" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://lttng.org/xml/ns/lttng-mi https://lttng.org/xml/schemas/lttng-mi/${MI_XSD_MAJOR_VERSION}/lttng-mi-${MI_XSD_MAJOR_VERSION}.${MI_XSD_MINOR_VERSION}.xsd" schemaVersion="${MI_XSD_MAJOR_VERSION}.${MI_XSD_MINOR_VERSION}">
<name>add-trigger</name>
<output>
<trigger>
<name>mi_hohoho</name>
<owner_uid>${UID}</owner_uid>
<condition>
<condition_event_rule_matches>
<event_rule>
<event_rule_user_tracepoint>
<name_pattern>some-event-id</name_pattern>
</event_rule_user_tracepoint>
</event_rule>
<capture_descriptors/>
</condition_event_rule_matches>
</condition>
<action>
<action_list>
<action>
<action_notify>
<rate_policy>
<rate_policy_every_n>
<interval>1</interval>
</rate_policy_every_n>
</rate_policy>
</action_notify>
</action>
</action_list>
</action>
</trigger>
</output>
<success>true</success>
</command>
EOF
"${FULL_LTTNG_BIN}" --mi xml add-trigger --name mi_hohoho \
--condition event-rule-matches --name=some-event-id --type=user \
--action notify > "${tmp_stdout_raw}" 2> "${tmp_stderr}"
ok $? "add-trigger mi: exit code is 0"
# Pretty-fy xml before further test.
$XML_PRETTY < "${tmp_stdout_raw}" > "${tmp_stdout}"
$MI_VALIDATE "${tmp_stdout}"
ok $? "add-trigger mi is valid"
diff -u "${tmp_expected_stdout}" "${tmp_stdout}"
ok $? "mi: expected stdout"
diff -u "${tmp_stderr}" /dev/null
ok $? "mi: expected stderr"
rm -f "${tmp_stdout_raw}"
}
# top-level options
test_success "explicit name" "hohoho" \
--name hohoho \
--condition event-rule-matches --type=user \
--action notify
# `--condition event-rule-matches` successes
test_success "--condition event-rule-matches some-event --type=user" \
"some-event" \
--name=some-event --condition event-rule-matches --type=user \
--action notify
test_success "--condition event-rule-matches --type=user" "trigger0" \
--condition event-rule-matches --type=user \
--action notify
test_success "notify action policies" "test-rate-policy-1" \
--name=test-rate-policy-1 \
--condition event-rule-matches --type=user \
--action notify \
--rate-policy=every:55 \
--action notify \
--rate-policy=once-after:55
test_success "start session action policies" "test-rate-policy-2" \
--name=test-rate-policy-2 \
--condition event-rule-matches --type=user \
--action start-session my_session \
--rate-policy=every:55 \
--action start-session my_session \
--rate-policy=once-after:55
test_success "stop session action policies" "test-rate-policy-3" \
--name=test-rate-policy-3 \
--condition event-rule-matches --type=user \
--action stop-session my_session \
--rate-policy=every:55 \
--action stop-session my_session \
--rate-policy=once-after:55
test_success "snapshot session action policies" "test-rate-policy-4" \
--name=test-rate-policy-4 \
--condition event-rule-matches --type=user \
--action snapshot-session my_session \
--rate-policy=every:55 \
--action snapshot-session my_session \
--rate-policy=once-after:55
test_success "rotate session action policies" "test-rate-policy-5" \
--name=test-rate-policy-5 \
--condition event-rule-matches --type=user \
--action rotate-session my_session \
--rate-policy=every:55 \
--action rotate-session my_session \
--rate-policy=once-after:55
test_success "--log-level single level" "trigger1" \
--condition event-rule-matches --type=user --log-level=INFO \
--action notify
test_success "--log-level range open max" "trigger2" \
--condition event-rule-matches --type=user --log-level=INFO.. \
--action notify
test_success "--log-level range any" "trigger3" \
--condition event-rule-matches --type=user --log-level=.. \
--action notify
test_success "--exclude-name one" "trigger4" \
--condition event-rule-matches --type=user --name='bernard*' --exclude-name=bernard-lermite \
--action notify
test_success "--exclude-name two" "trigger5" \
--condition event-rule-matches --type=user --name='jean-*' --exclude-name jean-chretien -x jean-charest \
--action notify
check_skip_kernel_test 18 "Skipping kprobe tests." || {
i=0
for type in kprobe kernel:kprobe; do
test_success "--condition event-rule-matches probe by symbol" "kprobe-trigger-$i" \
--name="kprobe-trigger-$i" \
--condition event-rule-matches --type=$type --location=lttng_channel_enable --event-name=my_channel_enable \
--action notify
channel_enable_addr=$(grep ' t lttng_channel_enable\s\[lttng_tracer\]$' /proc/kallsyms | cut -f 1 -d ' ')
channel_disable_addr=$(grep ' t lttng_channel_disable\s\[lttng_tracer\]$' /proc/kallsyms | cut -f 1 -d ' ')
# We need to find a valid offset.
base_symbol=""
offset=0
if [[ 0x$channel_enable_addr -lt 0x$channel_disable_addr ]]; then
base_symbol="lttng_channel_enable"
offset=$(( 0x$channel_disable_addr - 0x$channel_enable_addr ))
else
base_symbol="lttng_channel_disable"
offset=$(( 0x$channel_enable_addr - 0x$channel_disable_addr ))
fi
offset_hex="0x$(printf '%x' $offset)"
test_success "--condition event-rule-matches probe by symbol with offset" "kprobe-trigger-$((i+1))" \
--name="kprobe-trigger-$((i+1))" \
--condition event-rule-matches --type=$type --location="${base_symbol}+${offset_hex}" --event-name=my_$base_symbol \
--action notify
test_success "--condition event-rule-matches probe by address" "kprobe-trigger-$((i+2))" \
--name="kprobe-trigger-$((i+2))" \
--condition event-rule-matches --type=$type --location="0x${channel_enable_addr}" --event-name=my_channel_enable \
--action notify
i=$((i+3))
done
}
check_skip_kernel_test 6 "Skipping uprobe tests." || {
test_success "--condition event-rule-matches uprobe" "uprobe-trigger-0" \
--name="uprobe-trigger-0" \
--condition event-rule-matches --type=kernel:uprobe --location=${uprobe_elf_binary}:test_function --event-name=ma-probe \
--action notify
test_success "--condition event-rule-matches uprobe with elf prefix" "uprobe-trigger-1" \
--name="uprobe-trigger-1" \
--condition event-rule-matches --type=kernel:uprobe --location=elf:${uprobe_elf_binary}:test_function --event-name=ma-probe-2 \
--action notify
}
check_skip_kernel_test 30 "Skipping syscall tests." || {
test_success "--condition event-rule-matches one syscall" "syscall-trigger-0" \
--name="syscall-trigger-0" \
--condition event-rule-matches --type=syscall --name=open \
--action notify
test_success "--condition event-rule-matches all syscalls" "syscall-trigger-1" \
--name="syscall-trigger-1" \
--condition event-rule-matches --type=syscall \
--action notify
test_success "--condition event-rule-matches one syscall with filter" "syscall-trigger-2" \
--name="syscall-trigger-2" \
--condition event-rule-matches --type=syscall --filter 'a > 2' --name=open \
--action notify
test_success "--condition event-rule-matches one syscall:entry" "syscall-trigger-3" \
--name="syscall-trigger-3" \
--condition event-rule-matches --type=syscall:entry --name=open \
--action notify
test_success "--condition event-rule-matches one syscall:exit" "syscall-trigger-4" \
--name="syscall-trigger-4" \
--condition event-rule-matches --type=syscall:exit --name=open \
--action notify
test_success "--condition event-rule-matches one syscall:entry-exit" "syscall-trigger-5" \
--name="syscall-trigger-5" \
--condition event-rule-matches --type=syscall:entry+exit --name=open \
--action notify
# Same thing but with "kernel:syscall" type instead:
test_success "--condition event-rule-matches one syscall" "syscall-trigger-6" \
--name="syscall-trigger-6" \
--condition event-rule-matches --type=kernel:syscall --name=open \
--action notify
test_success "--condition event-rule-matches one kernel:syscall:entry" "syscall-trigger-7" \
--name="syscall-trigger-7" \
--condition event-rule-matches --type=kernel:syscall:entry --name=open \
--action notify
test_success "--condition event-rule-matches one kernel:syscall:exit" "syscall-trigger-8" \
--name="syscall-trigger-8" \
--condition event-rule-matches --type=kernel:syscall:exit --name=open \
--action notify
test_success "--condition event-rule-matches one kernel:syscall:entry-exit" "syscall-trigger-9" \
--name="syscall-trigger-9" \
--condition event-rule-matches --type=kernel:syscall:entry+exit --name=open \
--action notify
}
# `--action notify` successes
test_success "--action notify" "notify-1" \
--name=notify-1 \
--condition event-rule-matches --type=user \
--action notify
test_success "--action notify --capture foo" "notify-2" \
--name=notify-2 \
--condition event-rule-matches --type=user \
--capture foo --action notify
test_success "--action notify --capture foo[2]" "notify-3" \
--name=notify-3 \
--condition event-rule-matches --type=user \
--capture 'foo[2]' --action notify
test_success '--action notify --capture $ctx.foo' "notify-4" \
--name=notify-4 \
--condition event-rule-matches --type=user \
--capture '$ctx.foo' --action notify
test_success '--action notify --capture $ctx.foo[2]' "notify-5" \
--name=notify-5 \
--condition event-rule-matches --type=user \
--capture '$ctx.foo[2]' --action notify
test_success '--action notify --capture $app.prov:type' "notify-6" \
--name=notify-6 \
--condition event-rule-matches --type=user \
--capture '$app.prov:type' --action notify
test_success '--action notify --capture $app.prov:type[2]' "notify-7" \
--name=notify-7 \
--condition event-rule-matches --type=user \
--capture '$app.prov:type[2]' --action notify
test_success '--action notify multiple captures' "notify-8" \
--name=notify-8 \
--condition event-rule-matches --type=user \
--capture foo --capture '$app.hello:world' --action notify
# `--action start-session` successes
test_success "--action start-session" "notify-9" \
--name=notify-9 \
--condition event-rule-matches --type=user \
--action start-session ze-session
# `--action stop-session` successes
test_success "--action stop-session foo" "notify-10"\
--name=notify-10 \
--condition event-rule-matches --type=user \
--action stop-session ze-session
# `--action rotate-session` successes
test_success "--action rotate-session foo" "notify-11"\
--name=notify-11 \
--condition event-rule-matches --type=user \
--action rotate-session ze-session
# `--action snapshot-session` successes
test_success "--action snapshot-session foo" "notify-12"\
--name=notify-12 \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session
test_success "--action snapshot-session with file URI" "notify-13"\
--name=notify-13 \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session --path /hello
test_success "--action snapshot-session with net URI" "notify-14"\
--name=notify-14 \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session --url net://1.2.3.4
test_success "--action snapshot-session with ctrl/data URIs" "notify-15"\
--name=notify-15 \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session --ctrl-url=tcp://1.2.3.4:1234 --data-url=tcp://1.2.3.4:1235
# top-level failures
test_failure "no args" "Error: Missing --condition."
test_failure "unknown option" \
"Error: While parsing argument #2 (\`--hello\`): Unknown option \`--hello\`" \
--hello
test_failure "missing --action" \
"Error: Need at least one --action." \
--condition event-rule-matches --type=user
test_failure "two --condition" \
"Error: A --condition was already given." \
--condition event-rule-matches --name=aaa --type=user \
--condition event-rule-matches --name=bbb --type=user \
--action notify
test_failure "missing argument to --name" \
"Error: While parsing argument #2 (\`--name\`): Missing required argument for option \`--name\`" \
--name
for cmd in rate-policy=once-after rate-policy=every; do
test_failure "missing argument to --${cmd}" \
"Error: Rate policy format is invalid." \
--condition event-rule-matches --type=user --action notify \
--${cmd}
test_failure "invalid argument to --${cmd}: non-digit character" \
"Error: Failed to parse rate policy value \`123bob\` as an integer." \
--condition event-rule-matches --type=user --action notify \
--${cmd}:123bob
test_failure "invalid argument to --${cmd}: empty string" \
"Error: Failed to parse rate policy value \`\` as an integer." \
--condition event-rule-matches --type=user --action notify \
--${cmd}":"
done
test_failure "invalid argument to --rate-policy: unknown policy type" \
"Error: Rate policy type \`bob\` unknown." \
--condition event-rule-matches --type=user --action notify \
--rate-policy=bob:123
# `--condition` failures
test_failure "missing args after --condition" \
"Error: While parsing argument #2 (\`--condition\`): Missing required argument for option \`--condition\`
Error: Valid condition names are:
Error: event-rule-matches" \
--condition
test_failure "unknown --condition" \
"Error: While parsing argument #2 (\`--condition\`): Unknown condition name 'zoofest'
Error: Valid condition names are:
Error: event-rule-matches" \
--condition zoofest
test_failure "unknown --condition=" \
"Error: While parsing argument #2 (\`--condition=zoofest\`): Unknown condition name 'zoofest'
Error: Valid condition names are:
Error: event-rule-matches" \
--condition=zoofest
# `--condition event-rule-matches` failures
test_failure "missing args after --condition event-rule-matches" \
"Error: Need at least one --action." \
--condition event-rule-matches --type=user
test_failure "extra args after --condition event-rule-matches" \
"Error: Unexpected argument 'bozo'" \
--condition event-rule-matches --type=user bozo
test_failure "--log-level unknown level" \
"Error: Failed to parse log level string \`FOO\`." \
--condition event-rule-matches --type=user --log-level=FOO
for type in kprobe kernel:kprobe; do
test_failure "--condition event-rule-matches: --name with --type=$type" \
"Error: Can't use --name with kernel kprobe event rules." \
--condition event-rule-matches --type=$type --location=do_sys_open --name='hello'
done
test_failure "--condition event-rule-matches: --location with user tracepoint event rule" \
"Error: Can't use --location with user tracepoint event rules." \
--condition event-rule-matches --type=user --location='hello'
test_failure "--condition event-rule-matches: --event-name with user tracepoint event rule" \
"Error: Can't use --event-name with user tracepoint event rules." \
--condition event-rule-matches --type=user --event-name='hello'
test_failure "--condition event-rule-matches: extra argument with --type=kernel:uprobe" \
"Error: Unexpected argument 'hello'" \
--condition event-rule-matches --type=$type --location=${uprobe_elf_binary}:test_failure hello
test_failure "--condition event-rule-matches: extra argument with --type=syscall" \
"Error: Unexpected argument 'open'" \
--condition event-rule-matches --type=syscall open
test_failure "--condition event-rule-matches: --type=syscall:nope" \
"Error: Failed to parse syscall type 'syscall:nope'." \
--condition event-rule-matches --type=syscall:nope \
--name=open
test_failure "--exclude-name with non-glob name" \
"Error: Event name pattern must contain wildcard characters to use exclusions" \
--condition event-rule-matches --type=user --name='jean' --exclude-name jean-chretien \
--action notify
test_failure "--condition event-rule-matches --capture: missing argument (end of arg list)" \
'Error: While parsing argument #7 (`--capture`): Missing required argument for option `--capture`' \
--action notify \
--condition event-rule-matches --type=user --capture
test_failure "--condition event-rule-matches --capture: missing argument (before another option)" \
'Error: While parsing expression `--action`: Unary operators are not allowed in capture expressions.' \
--condition event-rule-matches --type=user --capture \
--action notify \
test_failure "--condition event-rule-matches --capture: binary operator" \
'Error: While parsing expression `foo == 2`: Binary operators are not allowed in capture expressions.' \
--condition event-rule-matches --type=user \
--capture 'foo == 2' --action notify
test_failure "--condition event-rule-matches --capture: unary operator" \
'Error: While parsing expression `!foo`: Unary operators are not allowed in capture expressions.' \
--condition event-rule-matches --type=user \
--capture '!foo' --action notify
test_failure "--condition event-rule-matches --capture: logical operator" \
'Error: While parsing expression `foo || bar`: Logical operators are not allowed in capture expressions.' \
--condition event-rule-matches --type=user \
--capture 'foo || bar' --action notify
test_failure "--condition event-rule-matches --capture: accessing a sub-field" \
'Error: While parsing expression `foo.bar`: Capturing subfields is not supported.' \
--condition event-rule-matches --type=user \
--capture 'foo.bar' --action notify
test_failure "--condition event-rule-matches --capture: accessing the sub-field of an array element" \
'Error: While parsing expression `foo[3].bar`: Capturing subfields is not supported.' \
--condition event-rule-matches --type=user \
--capture 'foo[3].bar' --action notify
test_failure "--condition event-rule-matches --capture: missing colon in app-specific context field" \
'Error: Invalid app-specific context field name: missing colon in `foo`.' \
--condition event-rule-matches --type=user \
--capture '$app.foo' --action notify
test_failure "--condition event-rule-matches --capture: missing colon in app-specific context field" \
'Error: Invalid app-specific context field name: missing type name after colon in `foo:`.' \
--condition event-rule-matches --type=user \
--capture '$app.foo:' --action notify
# `--action` failures
test_failure "missing args after --action" \
"Error: While parsing argument #5 (\`--action\`): Missing required argument for option \`--action\`
Error: Valid action names are:
Error: notify" \
--condition event-rule-matches --type=user \
--action
test_failure "unknown --action" \
"Error: While parsing argument #5 (\`--action\`): Unknown action name 'zoofest'
Error: Valid action names are:
Error: notify" \
--condition event-rule-matches --type=user \
--action zoofest
test_failure "unknown --action=" \
"Error: While parsing argument #5 (\`--action=zoofest\`): Unknown action name 'zoofest'
Error: Valid action names are:
Error: notify" \
--condition event-rule-matches --type=user \
--action=zoofest
# `--action notify` failures
test_failure "extra arg after --action notify" \
"Error: Unexpected argument \`bob\`." \
--condition event-rule-matches --type=user \
--action notify bob
# `--action start-session` failures
test_failure "missing arg after --action start-session" \
"Error: Missing session name." \
--condition event-rule-matches --type=user \
--action start-session
test_failure "extra arg after --action start-session" \
"Error: Unexpected argument \`bob\`." \
--condition event-rule-matches --type=user \
--action start-session ze-session bob
# `--action stop-session` failures
test_failure "missing arg after --action stop-session" \
"Error: Missing session name." \
--condition event-rule-matches --type=user \
--action stop-session
test_failure "extra arg after --action stop-session" \
"Error: Unexpected argument \`bob\`." \
--condition event-rule-matches --type=user \
--action stop-session ze-session bob
# `--action rotate-session` failures
test_failure "missing arg after --action rotate-session" \
"Error: Missing session name." \
--condition event-rule-matches --type=user \
--action rotate-session
test_failure "extra arg after --action rotate-session" \
"Error: Unexpected argument \`bob\`." \
--condition event-rule-matches --type=user \
--action rotate-session ze-session bob
# `--action snapshot-session` failures
test_failure "missing arg after --action snapshot-session" \
"Error: Missing session name." \
--condition event-rule-matches --type=user \
--action snapshot-session
test_failure "extra arg after --action snapshot-session" \
"Error: Unexpected argument \`bob\`." \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session bob
test_failure "snapshot-session action, --max-size without destination" \
"Error: Can't provide a snapshot output max size without a snapshot output destination." \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session --max-size 10M
test_failure "snapshot-session action, --name without destination" \
"Error: Can't provide a snapshot output name without a snapshot output destination." \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session --name hallo
test_failure "snapshot-session action, --name with-local-path-instead-of-url" \
"Error: Failed to parse '/something/that/looks/like/a/path' as an URL." \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session --name hallo --url /something/that/looks/like/a/path
test_failure "snapshot-session action, --name with-net-url-instead-of-path" \
"Error: Failed to parse 'net://8.8.8.8/' as a local path." \
--condition event-rule-matches --type=user \
--action snapshot-session ze-session --name hallo --path net://8.8.8.8/
test_mi
# Cleanup
stop_lttng_sessiond_notap
rm -f "${tmp_stdout}"
rm -f "${tmp_stderr}"
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