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	diff --git a/src/services/vyos-configd b/src/services/vyos-configd
	index 69ee15bf1..d797e90cf 100755
	--- a/src/services/vyos-configd
	+++ b/src/services/vyos-configd
	@@ -1,302 +1,312 @@
	#!/usr/bin/env python3
	#
	# Copyright (C) 2020-2024 VyOS maintainers and contributors
	#
	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License version 2 or later as
	# published by the Free Software Foundation.
	#
	# This program 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 General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program. If not, see <http://www.gnu.org/licenses/>.

	import os
	import sys
	import grp
	import re
	import json
	import typing
	import logging
	import signal
	import importlib.util
	import zmq
	from contextlib import contextmanager

	from vyos.defaults import directories
	from vyos.utils.boot import boot_configuration_complete
	from vyos.configsource import ConfigSourceString
	from vyos.configsource import ConfigSourceError
	from vyos.config import Config
	from vyos import ConfigError

	CFG_GROUP = 'vyattacfg'

	script_stdout_log = '/tmp/vyos-configd-script-stdout'

	debug = True

	logger = logging.getLogger(__name__)
	logs_handler = logging.StreamHandler()
	logger.addHandler(logs_handler)

	if debug:
	logger.setLevel(logging.DEBUG)
	else:
	logger.setLevel(logging.INFO)

	SOCKET_PATH = "ipc:///run/vyos-configd.sock"

	# Response error codes
	R_SUCCESS = 1
	R_ERROR_COMMIT = 2
	R_ERROR_DAEMON = 4
	R_PASS = 8

	vyos_conf_scripts_dir = directories['conf_mode']
	configd_include_file = os.path.join(directories['data'], 'configd-include.json')
	configd_env_set_file = os.path.join(directories['data'], 'vyos-configd-env-set')
	configd_env_unset_file = os.path.join(directories['data'], 'vyos-configd-env-unset')
	# sourced on entering config session
	configd_env_file = '/etc/default/vyos-configd-env'

	session_out = None
	session_mode = None

	def key_name_from_file_name(f):
	return os.path.splitext(f)[0]

	def module_name_from_key(k):
	return k.replace('-', '_')

	def path_from_file_name(f):
	return os.path.join(vyos_conf_scripts_dir, f)

	# opt-in to be run by daemon
	with open(configd_include_file) as f:
	try:
	include = json.load(f)
	except OSError as e:
	logger.critical(f"configd include file error: {e}")
	sys.exit(1)
	except json.JSONDecodeError as e:
	logger.critical(f"JSON load error: {e}")
	sys.exit(1)

	# import conf_mode scripts
	(_, _, filenames) = next(iter(os.walk(vyos_conf_scripts_dir)))
	filenames.sort()

	load_filenames = [f for f in filenames if f in include]
	imports = [key_name_from_file_name(f) for f in load_filenames]
	module_names = [module_name_from_key(k) for k in imports]
	paths = [path_from_file_name(f) for f in load_filenames]
	to_load = list(zip(module_names, paths))

	modules = []

	for x in to_load:
	spec = importlib.util.spec_from_file_location(x[0], x[1])
	module = importlib.util.module_from_spec(spec)
	spec.loader.exec_module(module)
	modules.append(module)

	conf_mode_scripts = dict(zip(imports, modules))

	exclude_set = {key_name_from_file_name(f) for f in filenames if f not in include}
	include_set = {key_name_from_file_name(f) for f in filenames if f in include}

	@contextmanager
	def stdout_redirected(filename, mode):
	saved_stdout_fd = None
	destination_file = None
	try:
	sys.stdout.flush()
	saved_stdout_fd = os.dup(sys.stdout.fileno())
	destination_file = open(filename, mode)
	os.dup2(destination_file.fileno(), sys.stdout.fileno())
	yield
	finally:
	if saved_stdout_fd is not None:
	os.dup2(saved_stdout_fd, sys.stdout.fileno())
	os.close(saved_stdout_fd)
	if destination_file is not None:
	destination_file.close()

	def explicit_print(path, mode, msg):
	try:
	with open(path, mode) as f:
	f.write(f"\n{msg}\n\n")
	except OSError:
	logger.critical("error explicit_print")

	def run_script(script_name, config, args) -> int:
	script = conf_mode_scripts[script_name]
	script.argv = args
	config.set_level([])
	try:
	c = script.get_config(config)
	script.verify(c)
	script.generate(c)
	script.apply(c)
	except ConfigError as e:
	logger.error(e)
	explicit_print(session_out, session_mode, str(e))
	return R_ERROR_COMMIT
	except Exception as e:
	logger.critical(e)
	return R_ERROR_DAEMON

	return R_SUCCESS

	def initialization(socket):
	global session_out
	global session_mode
	# Reset config strings:
	active_string = ''
	session_string = ''
	# check first for resent init msg, in case of client timeout
	while True:
	msg = socket.recv().decode("utf-8", "ignore")
	try:
	message = json.loads(msg)
	if message["type"] == "init":
	resp = "init"
	socket.send(resp.encode())
	except:
	break

	# zmq synchronous for ipc from single client:
	active_string = msg
	resp = "active"
	socket.send(resp.encode())
	session_string = socket.recv().decode("utf-8", "ignore")
	resp = "session"
	socket.send(resp.encode())
	pid_string = socket.recv().decode("utf-8", "ignore")
	resp = "pid"
	socket.send(resp.encode())
	sudo_user_string = socket.recv().decode("utf-8", "ignore")
	resp = "sudo_user"
	socket.send(resp.encode())
	+ temp_config_dir_string = socket.recv().decode("utf-8", "ignore")
	+ resp = "temp_config_dir"
	+ socket.send(resp.encode())
	+ changes_only_dir_string = socket.recv().decode("utf-8", "ignore")
	+ resp = "changes_only_dir"
	+ socket.send(resp.encode())

	logger.debug(f"config session pid is {pid_string}")
	logger.debug(f"config session sudo_user is {sudo_user_string}")

	try:
	session_out = os.readlink(f"/proc/{pid_string}/fd/1")
	session_mode = 'w'
	except FileNotFoundError:
	session_out = None

	# if not a 'live' session, for example on boot, write to file
	if not session_out or not boot_configuration_complete():
	session_out = script_stdout_log
	session_mode = 'a'

	os.environ['SUDO_USER'] = sudo_user_string
	+ if temp_config_dir_string:
	+ os.environ['VYATTA_TEMP_CONFIG_DIR'] = temp_config_dir_string
	+ if changes_only_dir_string:
	+ os.environ['VYATTA_CHANGES_ONLY_DIR'] = changes_only_dir_string

	try:
	configsource = ConfigSourceString(running_config_text=active_string,
	session_config_text=session_string)
	except ConfigSourceError as e:
	logger.debug(e)
	return None

	config = Config(config_source=configsource)
	dependent_func: dict[str, list[typing.Callable]] = {}
	setattr(config, 'dependent_func', dependent_func)

	return config

	def process_node_data(config, data, last: bool = False) -> int:
	if not config:
	logger.critical(f"Empty config")
	return R_ERROR_DAEMON

	script_name = None
	args = []
	config.dependency_list.clear()

	res = re.match(r'^(VYOS_TAGNODE_VALUE=[^/]+)?.\/([^/]+).py(.)', data)
	if res.group(1):
	env = res.group(1).split('=')
	os.environ[env[0]] = env[1]
	if res.group(2):
	script_name = res.group(2)
	if not script_name:
	logger.critical(f"Missing script_name")
	return R_ERROR_DAEMON
	if res.group(3):
	args = res.group(3).split()
	args.insert(0, f'{script_name}.py')

	if script_name not in include_set:
	return R_PASS

	with stdout_redirected(session_out, session_mode):
	result = run_script(script_name, config, args)

	return result

	def remove_if_file(f: str):
	try:
	os.remove(f)
	except FileNotFoundError:
	pass
	except OSError:
	raise

	def shutdown():
	remove_if_file(configd_env_file)
	os.symlink(configd_env_unset_file, configd_env_file)
	sys.exit(0)

	if __name__ == '__main__':
	context = zmq.Context()
	socket = context.socket(zmq.REP)

	# Set the right permissions on the socket, then change it back
	o_mask = os.umask(0)
	socket.bind(SOCKET_PATH)
	os.umask(o_mask)

	cfg_group = grp.getgrnam(CFG_GROUP)
	os.setgid(cfg_group.gr_gid)

	os.environ['VYOS_CONFIGD'] = 't'

	def sig_handler(signum, frame):
	shutdown()

	signal.signal(signal.SIGTERM, sig_handler)
	signal.signal(signal.SIGINT, sig_handler)

	# Define the vyshim environment variable
	remove_if_file(configd_env_file)
	os.symlink(configd_env_set_file, configd_env_file)

	config = None

	while True:
	# Wait for next request from client
	msg = socket.recv().decode()
	logger.debug(f"Received message: {msg}")
	message = json.loads(msg)

	if message["type"] == "init":
	resp = "init"
	socket.send(resp.encode())
	config = initialization(socket)
	elif message["type"] == "node":
	if message["last"]:
	logger.debug(f'final element of priority queue')
	res = process_node_data(config, message["data"], message["last"])
	response = res.to_bytes(1, byteorder=sys.byteorder)
	logger.debug(f"Sending response {res}")
	socket.send(response)
	else:
	logger.critical(f"Unexpected message: {message}")
	diff --git a/src/shim/vyshim.c b/src/shim/vyshim.c
	index 4d836127d..a78f62a7b 100644
	--- a/src/shim/vyshim.c
	+++ b/src/shim/vyshim.c
	@@ -1,320 +1,344 @@
	/*
	* Copyright (C) 2020-2024 VyOS maintainers and contributors
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 or later as
	* published by the Free Software Foundation.
	*
	* This program 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 General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*
	*/

	#include <stdlib.h>
	#include <stdio.h>
	#include <string.h>
	#include <unistd.h>
	#include <string.h>
	#include <sys/time.h>
	#include <time.h>
	#include <stdint.h>
	#include <sys/types.h>
	#include <sys/wait.h>
	#include <zmq.h>
	#include "mkjson.h"

	/*
	*
	*
	*/

	#if DEBUG
	#define DEBUG_ON 1
	#else
	#define DEBUG_ON 0
	#endif
	#define debug_print(fmt, ...) \
	do { if (DEBUG_ON) fprintf(stderr, fmt, ##__VA_ARGS__); } while (0)
	#define debug_call(f) \
	do { if (DEBUG_ON) f; } while (0)

	#define SOCKET_PATH "ipc:///run/vyos-configd.sock"

	#define GET_ACTIVE "cli-shell-api --show-active-only --show-show-defaults --show-ignore-edit showConfig"
	#define GET_SESSION "cli-shell-api --show-working-only --show-show-defaults --show-ignore-edit showConfig"

	#define COMMIT_MARKER "/var/tmp/initial_in_commit"
	#define QUEUE_MARKER "/var/tmp/last_in_queue"

	enum {
	SUCCESS = 1 << 0,
	ERROR_COMMIT = 1 << 1,
	ERROR_DAEMON = 1 << 2,
	PASS = 1 << 3
	};

	volatile int init_alarm = 0;
	volatile int timeout = 0;

	int initialization(void *);
	int pass_through(char **, int);
	void timer_handler(int);

	double get_posix_clock_time(void);

	int main(int argc, char* argv[])
	{
	// string for node data: conf_mode script and tagnode, if applicable
	char string_node_data[256];
	string_node_data[0] = '\0';

	void *context = zmq_ctx_new();
	void *requester = zmq_socket(context, ZMQ_REQ);

	int ex_index;
	int init_timeout = 0;
	int last = 0;

	debug_print("Connecting to vyos-configd ...\n");
	zmq_connect(requester, SOCKET_PATH);

	for (int i = 1; i < argc ; i++) {
	strncat(&string_node_data[0], argv[i], 127);
	}

	debug_print("data to send: %s\n", string_node_data);

	char *test = strstr(string_node_data, "VYOS_TAGNODE_VALUE");
	ex_index = test ? 2 : 1;

	if (access(COMMIT_MARKER, F_OK) != -1) {
	init_timeout = initialization(requester);
	if (!init_timeout) remove(COMMIT_MARKER);
	}

	// if initial communication failed, pass through execution of script
	if (init_timeout) {
	int ret = pass_through(argv, ex_index);
	return ret;
	}

	if (access(QUEUE_MARKER, F_OK) != -1) {
	last = 1;
	remove(QUEUE_MARKER);
	}

	char error_code[1];
	debug_print("Sending node data ...\n");
	char *string_node_data_msg = mkjson(MKJSON_OBJ, 3,
	MKJSON_STRING, "type", "node",
	MKJSON_BOOL, "last", last,
	MKJSON_STRING, "data", &string_node_data[0]);

	zmq_send(requester, string_node_data_msg, strlen(string_node_data_msg), 0);
	zmq_recv(requester, error_code, 1, 0);
	debug_print("Received node data receipt\n");

	int err = (int)error_code[0];

	free(string_node_data_msg);

	zmq_close(requester);
	zmq_ctx_destroy(context);

	if (err & PASS) {
	debug_print("Received PASS\n");
	int ret = pass_through(argv, ex_index);
	return ret;
	}

	if (err & ERROR_DAEMON) {
	debug_print("Received ERROR_DAEMON\n");
	int ret = pass_through(argv, ex_index);
	return ret;
	}

	if (err & ERROR_COMMIT) {
	debug_print("Received ERROR_COMMIT\n");
	return -1;
	}

	return 0;
	}

	int initialization(void* Requester)
	{
	char *active_str = NULL;
	size_t active_len = 0;

	char *session_str = NULL;
	size_t session_len = 0;

	char *empty_string = "\n";

	char buffer[16];

	struct sigaction sa;
	struct itimerval timer, none_timer;

	memset(&sa, 0, sizeof(sa));
	sa.sa_handler = &timer_handler;
	sigaction(SIGALRM, &sa, NULL);

	timer.it_value.tv_sec = 0;
	timer.it_value.tv_usec = 10000;
	timer.it_interval.tv_sec = timer.it_interval.tv_usec = 0;
	none_timer.it_value.tv_sec = none_timer.it_value.tv_usec = 0;
	none_timer.it_interval.tv_sec = none_timer.it_interval.tv_usec = 0;

	double prev_time_value, time_value;
	double time_diff;

	char *pid_val = getenv("VYATTA_CONFIG_TMP");
	strsep(&pid_val, "_");
	debug_print("config session pid: %s\n", pid_val);

	char *sudo_user = getenv("SUDO_USER");
	if (!sudo_user) {
	char nobody[] = "nobody";
	sudo_user = nobody;
	}
	debug_print("sudo_user is %s\n", sudo_user);

	+ char *temp_config_dir = getenv("VYATTA_TEMP_CONFIG_DIR");
	+ if (!temp_config_dir) {
	+ char none[] = "";
	+ temp_config_dir = none;
	+ }
	+ debug_print("temp_config_dir is %s\n", temp_config_dir);
	+
	+ char *changes_only_dir = getenv("VYATTA_CHANGES_ONLY_DIR");
	+ if (!changes_only_dir) {
	+ char none[] = "";
	+ changes_only_dir = none;
	+ }
	+ debug_print("changes_only_dir is %s\n", changes_only_dir);
	+
	debug_print("Sending init announcement\n");
	char *init_announce = mkjson(MKJSON_OBJ, 1,
	MKJSON_STRING, "type", "init");

	// check for timeout on initial contact
	while (!init_alarm) {
	debug_call(prev_time_value = get_posix_clock_time());

	setitimer(ITIMER_REAL, &timer, NULL);

	zmq_send(Requester, init_announce, strlen(init_announce), 0);
	zmq_recv(Requester, buffer, 16, 0);

	setitimer(ITIMER_REAL, &none_timer, &timer);

	debug_call(time_value = get_posix_clock_time());

	debug_print("Received init receipt\n");
	debug_call(time_diff = time_value - prev_time_value);
	debug_print("time elapse %f\n", time_diff);

	break;
	}

	free(init_announce);

	if (timeout) return -1;

	FILE *fp_a = popen(GET_ACTIVE, "r");
	getdelim(&active_str, &active_len, '\0', fp_a);
	int ret = pclose(fp_a);

	if (!ret) {
	debug_print("Sending active config\n");
	zmq_send(Requester, active_str, active_len - 1, 0);
	zmq_recv(Requester, buffer, 16, 0);
	debug_print("Received active receipt\n");
	} else {
	debug_print("Sending empty active config\n");
	zmq_send(Requester, empty_string, 0, 0);
	zmq_recv(Requester, buffer, 16, 0);
	debug_print("Received active receipt\n");
	}

	free(active_str);

	FILE *fp_s = popen(GET_SESSION, "r");
	getdelim(&session_str, &session_len, '\0', fp_s);
	pclose(fp_s);

	debug_print("Sending session config\n");
	zmq_send(Requester, session_str, session_len - 1, 0);
	zmq_recv(Requester, buffer, 16, 0);
	debug_print("Received session receipt\n");

	free(session_str);

	debug_print("Sending config session pid\n");
	zmq_send(Requester, pid_val, strlen(pid_val), 0);
	zmq_recv(Requester, buffer, 16, 0);
	debug_print("Received pid receipt\n");

	debug_print("Sending config session sudo_user\n");
	zmq_send(Requester, sudo_user, strlen(sudo_user), 0);
	zmq_recv(Requester, buffer, 16, 0);
	debug_print("Received sudo_user receipt\n");

	+ debug_print("Sending config session temp_config_dir\n");
	+ zmq_send(Requester, temp_config_dir, strlen(temp_config_dir), 0);
	+ zmq_recv(Requester, buffer, 16, 0);
	+ debug_print("Received temp_config_dir receipt\n");
	+
	+ debug_print("Sending config session changes_only_dir\n");
	+ zmq_send(Requester, changes_only_dir, strlen(changes_only_dir), 0);
	+ zmq_recv(Requester, buffer, 16, 0);
	+ debug_print("Received changes_only_dir receipt\n");
	+
	return 0;
	}

	int pass_through(char **argv, int ex_index)
	{
	char **newargv = NULL;
	pid_t child_pid;

	newargv = &argv[ex_index];
	if (ex_index > 1) {
	putenv(argv[ex_index - 1]);
	}

	debug_print("pass-through invoked\n");

	if ((child_pid=fork()) < 0) {
	debug_print("fork() failed\n");
	return -1;
	} else if (child_pid == 0) {
	if (-1 == execv(argv[ex_index], newargv)) {
	debug_print("pass_through execve failed %s: %s\n",
	argv[ex_index], strerror(errno));
	return -1;
	}
	} else if (child_pid > 0) {
	int status;
	pid_t wait_pid = waitpid(child_pid, &status, 0);
	if (wait_pid < 0) {
	debug_print("waitpid() failed\n");
	return -1;
	} else if (wait_pid == child_pid) {
	if (WIFEXITED(status)) {
	debug_print("child exited with code %d\n",
	WEXITSTATUS(status));
	return WEXITSTATUS(status);
	}
	}
	}

	return 0;
	}

	void timer_handler(int signum)
	{
	debug_print("timer_handler invoked\n");
	timeout = 1;
	init_alarm = 1;

	return;
	}

	#ifdef _POSIX_MONOTONIC_CLOCK
	double get_posix_clock_time(void)
	{
	struct timespec ts;

	if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
	return (double) (ts.tv_sec + ts.tv_nsec / 1000000000.0);
	} else {
	return 0;
	}
	}
	#else
	double get_posix_clock_time(void)
	{return (double)0;}
	#endif

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