diff options
Diffstat (limited to 'src/bin/dhcp6/tests/dhcp6_process_tests.sh.in')
| -rw-r--r-- | src/bin/dhcp6/tests/dhcp6_process_tests.sh.in | 485 |
1 files changed, 485 insertions, 0 deletions
diff --git a/src/bin/dhcp6/tests/dhcp6_process_tests.sh.in b/src/bin/dhcp6/tests/dhcp6_process_tests.sh.in new file mode 100644 index 0000000..0265ec6 --- /dev/null +++ b/src/bin/dhcp6/tests/dhcp6_process_tests.sh.in @@ -0,0 +1,485 @@ +#!/bin/sh + +# Copyright (C) 2014-2021 Internet Systems Consortium, Inc. ("ISC") +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# shellcheck disable=SC1091 +# SC1091: Not following: ... was not specified as input (see shellcheck -x). + +# shellcheck disable=SC2039 +# SC2039: In POSIX sh, 'local' is undefined. + +# Exit with error if commands exit with non-zero and if undefined variables are +# used. +set -eu + +# Path to the temporary configuration file. +CFG_FILE="@abs_top_builddir@/src/bin/dhcp6/tests/test_config.json" +# Path to the Kea log file. +LOG_FILE="@abs_top_builddir@/src/bin/dhcp6/tests/test.log" +# Path to the Kea lease file. +LEASE_FILE="@abs_top_builddir@/src/bin/dhcp6/tests/test_leases.csv" +# Path to the Kea LFC application +export KEA_LFC_EXECUTABLE="@abs_top_builddir@/src/bin/lfc/kea-lfc" +# Kea configuration to be stored in the configuration file. +CONFIG="{ + \"Dhcp6\": + { \"interfaces-config\": { + \"interfaces\": [ ] + }, + \"server-id\": { + \"type\": \"LLT\", + \"persist\": false + }, + \"preferred-lifetime\": 3000, + \"valid-lifetime\": 4000, + \"renew-timer\": 1000, + \"rebind-timer\": 2000, + \"lease-database\": + { + \"type\": \"memfile\", + \"name\": \"$LEASE_FILE\", + \"persist\": false, + \"lfc-interval\": 0 + }, + \"subnet6\": [ + { + \"subnet\": \"2001:db8:1::/64\", + \"pools\": [ { \"pool\": \"2001:db8:1::10-2001:db8:1::100\" } ] + } ], + \"dhcp-ddns\": { + \"enable-updates\": true, + \"qualifying-suffix\": \"\" + }, + \"loggers\": [ + { + \"name\": \"kea-dhcp6\", + \"output_options\": [ + { + \"output\": \"$LOG_FILE\" + } + ], + \"severity\": \"INFO\" + } + ] + } +}" +# Invalid configuration (syntax error) to check that Kea can check syntax. +# This config has following errors: +# - it should be interfaces-config/interfaces, not interfaces +# - it should be subnet6/pools, no subnet6/pool +CONFIG_BAD_SYNTAX="{ + \"Dhcp6\": + { + \"interfaces\": [ ], + \"preferred-lifetime\": 3000, + \"valid-lifetime\": 4000, + \"renew-timer\": 1000, + \"rebind-timer\": 2000, + \"lease-database\": + { + \"type\": \"memfile\", + \"persist\": false + }, + \"subnet6\": [ + { + \"subnet\": \"2001:db8:1::/64\", + \"pool\": [ { \"pool\": \"2001:db8:1::10-2001:db8:1::100\" } ] + } ], + \"loggers\": [ + { + \"name\": \"kea-dhcp6\", + \"output_options\": [ + { + \"output\": \"$LOG_FILE\" + } + ], + \"severity\": \"INFO\" + } + ] + } +}" +# Invalid configuration (negative preferred-lifetime) to check that Kea +# gracefully handles reconfiguration errors. +CONFIG_INVALID="{ + \"Dhcp6\": + { + \"interfaces-config\": { + \"interfaces\": [ ] + }, + \"preferred-lifetime\": -3, + \"valid-lifetime\": 4000, + \"renew-timer\": 1000, + \"rebind-timer\": 2000, + \"lease-database\": + { + \"type\": \"memfile\", + \"persist\": false + }, + \"subnet6\": [ + { + \"subnet\": \"2001:db8:1::/64\", + \"pool\": [ { \"pool\": \"2001:db8:1::10-2001:db8:1::100\" } ] + } ], + \"loggers\": [ + { + \"name\": \"kea-dhcp6\", + \"output_options\": [ + { + \"output\": \"$LOG_FILE\" + } + ], + \"severity\": \"INFO\" + } + ] + } +}" + +# This config has bad pool values. The pool it out of scope for the subnet +# it is defined in. Syntactically the config is correct, though. +CONFIG_BAD_VALUES="{ + \"Dhcp6\": + { \"interfaces-config\": { + \"interfaces\": [ ] + }, + \"server-id\": { + \"type\": \"LLT\", + \"persist\": false + }, + \"preferred-lifetime\": 3000, + \"valid-lifetime\": 4000, + \"renew-timer\": 1000, + \"rebind-timer\": 2000, + \"lease-database\": + { + \"type\": \"memfile\", + \"name\": \"$LEASE_FILE\", + \"persist\": false, + \"lfc-interval\": 0 + }, + \"subnet6\": [ + { + \"subnet\": \"2001:db8::/64\", + \"pools\": [ { \"pool\": \"3000::-3000::ffff\" } ] + } ], + \"dhcp-ddns\": { + \"enable-updates\": true, + \"qualifying-suffix\": \"\" + } + } +}" + + +# Set the location of the executable. +bin="kea-dhcp6" +bin_path="@abs_top_builddir@/src/bin/dhcp6" + +# Import common test library. +. "@abs_top_builddir@/src/lib/testutils/dhcp_test_lib.sh" + +# This test verifies that syntax checking works properly. This function +# requires 3 parameters: +# test_name +# config - string with a content of the config (will be written to a file) +# expected_code - expected exit code returned by kea (0 - success, 1 - failure) +syntax_check_test() { + local test_name="${1}" + local config="${2}" + local expected_code="${3}" + + # Log the start of the test and print test name. + test_start "${test_name}" + # Create correct configuration file. + create_config "${config}" + # Check it + printf "Running command %s.\n" "\"${bin_path}/${bin} -t ${CFG_FILE}\"" + run_command \ + "${bin_path}/${bin}" -t "${CFG_FILE}" + if [ "${EXIT_CODE}" -ne "${expected_code}" ]; then + printf 'ERROR: expected exit code %s, got %s\n' "${expected_code}" "${EXIT_CODE}" + clean_exit 1 + fi + + test_finish 0 +} + +# This test verifies that DHCPv6 can be reconfigured with a SIGHUP signal. +dynamic_reconfiguration_test() { + # Log the start of the test and print test name. + test_start "dhcpv6_srv.dynamic_reconfiguration" + # Create new configuration file. + create_config "${CONFIG}" + # Instruct Kea to log to the specific file. + set_logger + # Start Kea. + start_kea ${bin_path}/${bin} + # Wait up to 20s for Kea to start. + wait_for_kea 20 + if [ "${_WAIT_FOR_KEA}" -eq 0 ]; then + printf "ERROR: timeout waiting for Kea to start.\n" + clean_exit 1 + fi + + # Check if it is still running. It could have terminated (e.g. as a result + # of configuration failure). + get_pid ${bin} + if [ "${_GET_PIDS_NUM}" -ne 1 ]; then + printf "ERROR: expected one Kea process to be started. Found %d processes\ + started.\n" "${_GET_PIDS_NUM}" + clean_exit 1 + fi + + # Check in the log file, how many times server has been configured. It should + # be just once on startup. + get_reconfigs + if [ "${_GET_RECONFIGS}" -ne 1 ]; then + printf "ERROR: server hasn't been configured.\n" + clean_exit 1 + else + printf "Server successfully configured.\n" + fi + + # Now use invalid configuration. + create_config "${CONFIG_INVALID}" + + # Try to reconfigure by sending SIGHUP + send_signal 1 ${bin} + + # The configuration should fail and the error message should be there. + wait_for_message 10 "DHCP6_CONFIG_LOAD_FAIL" 1 + + # After receiving SIGHUP the server should try to reconfigure itself. + # The configuration provided is invalid so it should result in + # reconfiguration failure but the server should still be running. + get_reconfigs + if [ "${_GET_RECONFIGS}" -ne 1 ]; then + printf "ERROR: server has been reconfigured despite bogus configuration.\n" + clean_exit 1 + elif [ "${_GET_RECONFIG_ERRORS}" -ne 1 ]; then + printf "ERROR: server did not report reconfiguration error despite attempt\ + to configure it with invalid configuration.\n" + clean_exit 1 + fi + + # Make sure the server is still operational. + get_pid ${bin} + if [ "${_GET_PIDS_NUM}" -ne 1 ]; then + printf "ERROR: Kea process was killed when attempting reconfiguration.\n" + clean_exit 1 + fi + + # Restore the good configuration. + create_config "${CONFIG}" + + # Reconfigure the server with SIGHUP. + send_signal 1 ${bin} + + # There should be two occurrences of the DHCP6_CONFIG_COMPLETE messages. + # Wait for it up to 10s. + wait_for_message 10 "DHCP6_CONFIG_COMPLETE" 2 + + # After receiving SIGHUP the server should get reconfigured and the + # reconfiguration should be noted in the log file. We should now + # have two configurations logged in the log file. + if [ "${_WAIT_FOR_MESSAGE}" -eq 0 ]; then + printf "ERROR: server hasn't been reconfigured.\n" + clean_exit 1 + else + printf "Server successfully reconfigured.\n" + fi + + # Make sure the server is still operational. + get_pid ${bin} + if [ "${_GET_PIDS_NUM}" -ne 1 ]; then + printf "ERROR: Kea process was killed when attempting reconfiguration.\n" + clean_exit 1 + fi + + # When the server receives a signal the call to select() function is + # interrupted. This should not be logged as an error. + get_log_messages "DHCP6_PACKET_RECEIVE_FAIL" + assert_eq 0 "${_GET_LOG_MESSAGES}" \ + "Expected get_log_messages DHCP6_PACKET_RECEIVE_FAIL return %d, \ +returned %d." + + # All ok. Shut down Kea and exit. + test_finish 0 +} + +# This test verifies that DHCPv6 server is shut down gracefully when it +# receives a SIGINT or SIGTERM signal. +shutdown_test() { + local test_name="${1}" # Test name + local signum="${2}" # Signal number + + # Log the start of the test and print test name. + test_start "${test_name}" + # Create new configuration file. + create_config "${CONFIG}" + # Instruct Kea to log to the specific file. + set_logger + # Start Kea. + start_kea ${bin_path}/${bin} + # Wait up to 20s for Kea to start. + wait_for_kea 20 + if [ "${_WAIT_FOR_KEA}" -eq 0 ]; then + printf "ERROR: timeout waiting for Kea to start.\n" + clean_exit 1 + fi + + # Check if it is still running. It could have terminated (e.g. as a result + # of configuration failure). + get_pid ${bin} + if [ "${_GET_PIDS_NUM}" -ne 1 ]; then + printf "ERROR: expected one Kea process to be started. Found %d processes\ + started.\n" "${_GET_PIDS_NUM}" + clean_exit 1 + fi + + # Check in the log file, how many times server has been configured. It should + # be just once on startup. + get_reconfigs + if [ "${_GET_RECONFIGS}" -ne 1 ]; then + printf "ERROR: server hasn't been configured.\n" + clean_exit 1 + else + printf "Server successfully configured.\n" + fi + + # Send signal to Kea (SIGTERM, SIGINT etc.) + send_signal "${signum}" "${bin}" + + # Wait up to 10s for the server's graceful shutdown. The graceful shut down + # should be recorded in the log file with the appropriate message. + wait_for_message 10 "DHCP6_SHUTDOWN" 1 + if [ "${_WAIT_FOR_MESSAGE}" -eq 0 ]; then + printf "ERROR: Server did not record shutdown in the log.\n" + clean_exit 1 + fi + + # Make sure the server is down. + wait_for_server_down 5 ${bin} + assert_eq 1 "${_WAIT_FOR_SERVER_DOWN}" \ + "Expected wait_for_server_down return %d, returned %d" + + # When the server receives a signal the call to select() function is + # interrupted. This should not be logged as an error. + get_log_messages "DHCP6_PACKET_RECEIVE_FAIL" + assert_eq 0 "${_GET_LOG_MESSAGES}" \ + "Expected get_log_messages DHCP6_PACKET_RECEIVE_FAIL return %d, \ +returned %d." + + test_finish 0 +} + +# This test verifies that DHCPv6 can be configured to run lease file cleanup +# periodically. +lfc_timer_test() { + # Log the start of the test and print test name. + test_start "dhcpv6_srv.lfc_timer_test" + # Create a configuration with the LFC enabled, by replacing the section + # with the lfc-interval and persist parameters. + LFC_CONFIG=$(printf '%s' "${CONFIG}" | sed -e 's/\"lfc-interval\": 0/\"lfc-interval\": 3/g' \ + | sed -e 's/\"persist\": false,/\"persist\": true,/g') + # Create new configuration file. + create_config "${LFC_CONFIG}" + # Instruct Kea to log to the specific file. + set_logger + # Start Kea. + start_kea ${bin_path}/${bin} + # Wait up to 20s for Kea to start. + wait_for_kea 20 + if [ "${_WAIT_FOR_KEA}" -eq 0 ]; then + printf "ERROR: timeout waiting for Kea to start.\n" + clean_exit 1 + fi + + # Check if it is still running. It could have terminated (e.g. as a result + # of configuration failure). + get_pid ${bin} + if [ "${_GET_PIDS_NUM}" -ne 1 ]; then + printf "ERROR: expected one Kea process to be started. Found %d processes\ + started.\n" "${_GET_PIDS_NUM}" + clean_exit 1 + fi + + # Check if Kea emits the log message indicating that LFC is started. + wait_for_message 10 "DHCPSRV_MEMFILE_LFC_EXECUTE" 1 + if [ "${_WAIT_FOR_MESSAGE}" -eq 0 ]; then + printf "ERROR: Server did not execute LFC.\n" + clean_exit 1 + fi + + # Give it a short time to run. + sleep 1 + + # Modify the interval. + LFC_CONFIG=$(printf '%s' "${LFC_CONFIG}" | sed -e 's/\"lfc-interval\": 3/\"lfc-interval\": 4/g') + # Create new configuration file. + create_config "${LFC_CONFIG}" + + # Reconfigure the server with SIGHUP. + send_signal 1 ${bin} + + # There should be two occurrences of the DHCP4_CONFIG_COMPLETE messages. + # Wait for it up to 10s. + wait_for_message 10 "DHCP6_CONFIG_COMPLETE" 2 + + # After receiving SIGHUP the server should get reconfigured and the + # reconfiguration should be noted in the log file. We should now + # have two configurations logged in the log file. + if [ "${_WAIT_FOR_MESSAGE}" -eq 0 ]; then + printf "ERROR: server hasn't been reconfigured.\n" + clean_exit 1 + else + printf "Server successfully reconfigured.\n" + fi + + # Make sure the server is still operational. + get_pid ${bin} + if [ "${_GET_PIDS_NUM}" -ne 1 ]; then + printf "ERROR: Kea process was killed when attempting reconfiguration.\n" + clean_exit 1 + fi + + # Wait for the LFC to run the second time. + wait_for_message 10 "DHCPSRV_MEMFILE_LFC_EXECUTE" 2 + if [ "${_WAIT_FOR_MESSAGE}" -eq 0 ]; then + printf "ERROR: Server did not execute LFC.\n" + clean_exit 1 + fi + + # Send signal to Kea SIGTERM + send_signal 15 ${bin} + + # Wait up to 10s for the server's graceful shutdown. The graceful shut down + # should be recorded in the log file with the appropriate message. + wait_for_message 10 "DHCP6_SHUTDOWN" 1 + if [ "${_WAIT_FOR_MESSAGE}" -eq 0 ]; then + printf "ERROR: Server did not record shutdown in the log.\n" + clean_exit 1 + fi + + # Make sure the server is down. + wait_for_server_down 5 ${bin} + assert_eq 1 "${_WAIT_FOR_SERVER_DOWN}" \ + "Expected wait_for_server_down return %d, returned %d" + + # All ok. Shut down Kea and exit. + test_finish 0 +} + +server_pid_file_test "${CONFIG}" DHCP6_ALREADY_RUNNING +dynamic_reconfiguration_test +shutdown_test "dhcpv6.sigterm_test" 15 +shutdown_test "dhcpv6.sigint_test" 2 +version_test "dhcpv6.version" +logger_vars_test "dhcpv6.variables" +lfc_timer_test +syntax_check_test "dhcpv6.syntax_check_success" "${CONFIG}" 0 +syntax_check_test "dhcpv6.syntax_check_bad_syntax" "${CONFIG_BAD_SYNTAX}" 1 +syntax_check_test "dhcpv6.syntax_check_bad_values" "${CONFIG_BAD_VALUES}" 1 +password_redact_test "dhcpv6.password_redact_test" "$(kea_dhcp_config 6)" 0 |