genode/repos/gems/run/trace_recorder.run

assert_spec linux

# check that babeltrace2 is present
set babeltrace_missing [catch {
	spawn babeltrace2 -V
	expect {
		{Babeltrace 2.*}  { }
		eof { return }
		timeout { return }
	}
}]

if {$babeltrace_missing} {
	puts "\nPlease install babeltrace2 on your host system."
	exit 1;
}

# check that python-pcapng is present
set python_pcapng_missing [catch {
	spawn -noecho sh -c "echo \"import pcapng\" | python"
	expect {
		{No module}  { return }
		{not found}  { return }
		eof { }
	}
}]

if {$python_pcapng_missing} {
	puts "\nPlease install python-pcapng on your host system."
	exit 1;
}

build { app/ping server/lx_fs }

create_boot_directory

import_from_depot \
	[depot_user]/src/[base_src] \
	[depot_user]/src/init \
	[depot_user]/src/libc \
	[depot_user]/src/nic_router \
	[depot_user]/src/report_rom \
	[depot_user]/src/vfs \
	[depot_user]/src/linux_rtc_drv \
	[depot_user]/src/trace_recorder \
	[depot_user]/raw/trace_recorder \
	[depot_user]/src/trace_recorder_policy \
	[depot_user]/src/dynamic_rom

install_config {
	<config verbose="yes">
		<parent-provides>
			<service name="ROM"/>
			<service name="LOG"/>
			<service name="RM"/>
			<service name="CPU"/>
			<service name="PD"/>
			<service name="IRQ"/>
			<service name="TRACE"/>
		</parent-provides>

		<default-route>
			<service name="File_system"> <child name="vfs"/> </service>
			<any-service> <parent/> <any-child/> </any-service>
		</default-route>
		<default caps="100"/>

		<start name="timer">
			<resource name="RAM" quantum="1M"/>
			<provides><service name="Timer"/></provides>
		</start>

		<start name="linux_rtc_drv" ld="no">
			<resource name="RAM" quantum="1M"/>
			<provides> <service name="Rtc"/> </provides>
		</start>

		<start name="lx_fs" ld="no">
			<resource name="RAM" quantum="4M"/>
			<provides> <service name="File_system"/> </provides>
			<config>
				<default-policy root="/fs" writeable="yes"/>
			</config>
		</start>

		<start name="nic_router">
			<resource name="RAM" quantum="1M"/>
			<provides>
				<service name="Nic"/>
				<service name="Uplink"/>
			</provides>
			<config icmp_echo_server="yes" trace_packets="yes">
				<default-policy domain="default"/>

				<domain name="default" interface="10.0.4.1/24">
					<dhcp-server ip_first="10.0.4.2" ip_last="10.0.4.10"/>
				</domain>
			</config>
		</start>

		<start name="ping">
			<resource name="RAM" quantum="10M"/>
			<config dst_ip="10.0.4.1" period_sec="1" count="10" verbose="yes"/>
		</start>

		<!-- using dynamic_rom to delay enabling of trace_recorder -->
		<start name="dynamic_rom">
			<resource name="RAM" quantum="1M"/>
			<provides><service name="ROM"/></provides>
			<config>
				<rom name="config">
					<inline>
						<config/>
					</inline>
					<sleep milliseconds="1000"/>
					<inline>
						<config period_ms="3000" enable="yes">
							<vfs> <fs/> </vfs>
							<policy label_suffix="nic_router" thread="ep" policy="ctf0_pcapng">
								<pcapng/>
								<ctf/>
							</policy>
							<policy label_suffix="ping" thread="ep" policy="ctf0">
								<ctf/>
							</policy>
						</config>
					</inline>
					<sleep milliseconds="2000"/>
					<inline>
						<config/>
					</inline>
					<sleep milliseconds="10000"/>
				</rom>
			</config>
		</start>

		<start name="trace_recorder" caps="200">
			<resource name="RAM" quantum="16M"/>
			<route>
				<service name="File_system"> <child name="lx_fs"/> </service>
				<service name="ROM" label="config"> <child name="dynamic_rom"/> </service>
				<service name="TRACE"> <parent label=""/> </service>
				<any-service> <parent/> <any-child/> </any-service>
			</route>
		</start>

	</config>
}

exec rm -rf bin/fs
exec mkdir -p bin/fs

build_boot_image [list {*}[build_artifacts] fs]

append qemu_args " -nographic "

run_genode_until {Enabled ctf writer for init -> ping -> ep} 20
set spawn_id [output_spawn_id]
run_genode_until {.*child "ping" exited with exit value 0.*} 60 $spawn_id

#######################
# validate CTF output #
#######################

set ctf_path [exec find bin/fs -type d -name nic_router]
exec test -s $ctf_path/ep

# check generated trace by reading CTF trace as fast as possible using a dummy output
exec babeltrace2 $ctf_path --output-format=dummy


##########################
# validate PCAPNG output #
##########################

# create python script for pcapng parsing
set fd [open [run_dir]/genode/check_pcapng.py "w"]
puts $fd {
import sys
import pcapng

with open(sys.argv[1], "rb") as fp:
   scanner = pcapng.FileScanner(fp)
   for block in pcapng.FileScanner(fp):
       pass
}
close $fd

set pcap_file [exec find bin/fs -name nic_router.pcapng]
exec test -s $pcap_file

# check generated trace by python script
exec python [run_dir]/genode/check_pcapng.py $pcap_file