# Copyright (c) 2021 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

# Immediate mode cannot be used with network backend as it would cause the sent
# rsyslog message to be malformed.
config LOG_BACKEND_NET
	bool "Networking backend"
	depends on NETWORKING && NET_UDP && !LOG_MODE_IMMEDIATE
	select NET_CONTEXT_NET_PKT_POOL
	select LOG_OUTPUT
	help
	  Send syslog messages to network server.
	  See RFC 5424 (syslog protocol) and RFC 5426 (syslog over UDP)
	  specifications for details.

if LOG_BACKEND_NET

config LOG_BACKEND_NET_SERVER
	string "Syslog server IP address"
	help
	  This can be either IPv4 or IPv6 address.
	  Server listen UDP port number can be configured here too.
	  Following syntax is supported:
	  192.0.2.1:514
	  192.0.2.42
	  [2001:db8::1]:514
	  [2001:db8::2]
	  2001:db::42

config LOG_BACKEND_NET_MAX_BUF
	int "How many network buffers to allocate for sending messages"
	range 3 256
	default 3
	help
	  Each syslog message should fit into a network packet that will be
	  sent to server. This number tells how many syslog messages can be
	  in transit to the server.

config LOG_BACKEND_NET_MAX_BUF_SIZE
	int "Max syslog message size"
	range 64 1180
	default 1180 if NET_IPV6
	default 480 if NET_IPV4
	default 256
	help
	  As each syslog message needs to fit to UDP packet, set this value
	  so that messages are not truncated.
	  The RFC 5426 recommends that for IPv4 the size is 480 octets and for
	  IPv6 the size is 1180 octets. As each buffer will use RAM, the value
	  should be selected so that typical messages will fit the buffer.

config LOG_BACKEND_NET_AUTOSTART
	bool "Automatically start networking backend"
	default y if NET_CONFIG_NEED_IPV4 || NET_CONFIG_NEED_IPV6
	help
	  When enabled automatically start the networking backend on
	  application start. If no routes to the logging server are available
	  on application startup, this must be set to n and the backend must be
	  started by the application later on. Otherwise the logging
	  thread might block.

backend = NET
backend-str = net
source "subsys/logging/Kconfig.template.log_format_config"

endif # LOG_BACKEND_NET