# Example for build-time configuration options.
# Copy this to `config.mk` and adjust as needed. The values shown below are
# usage examples, whereas the first one always represents the default value.
# Please note that you should trigger a clean build (`make clean && make`) after
# changing any of these settings.

##################
# Build settings #
##################

# Note: The following settings are expected to be provided mainly on the `make`
# command line. If needed, however, they can be specified here.

# If set to `release`, build without debug symbols and optimize the binary.
#type ?= debug
#type ?= release

# If set to `yes`, enable further warnings. If set to `all`, enable even more
# warnings, including those that could be false positive.
#wextra ?= yes
#wextra ?= no
#wextra ?= all

# If set to `yes`, make warnings terminate the build process.
#werror ?= no
#werror ?= yes

# If set to `yes`, print all commands issued during build.
#verbose ?= no
#verbose ?= yes

# Enable sanitizers. As some of them are incompatible, there are multiple
# options: `yes` means to use the address and UB sanitizers, `memory` (only
# available with Clang) the memory sanitizer, and `thread` (only available with
# Clang) the thread sanitizer.
#sanitize ?= no
#sanitize ?= yes
#sanitize ?= memory
#sanitize ?= thread

# If set to `yes`, terminate the program on sanitizer errors.
#sanitize-strict ?= no
#sanitize-strict ?= yes

# If set to `yes`, build a binary instrumented for coverage analysis.
#coverage ?= no
#coverage ?= yes

###############################
# Dependency-related settings #
###############################

# Some features can be disabled to reduce the number of dependencies.
# NOTE that these are NOT DEFINED and the features are enabled by default.
# Also NOTE that the value does not matter; even if you set it to zero, as
# long as it is defined, the feature(s) will be disabled!

# The persistent storage implementation requires SQLite.
#DISABLE_SQLITE_STORAGE := 0

# The JSON-based router configuration requires Jansson.
#DISABLE_JSON := 0

#####################
# Toolchain options #
#####################

# Toolchain to be used. `gcc` or `clang` can be selected. Note that this can
# also be specified on the command line, e.g.: `make TOOLCHAIN=clang`
#TOOLCHAIN := gcc

# Toolchain prefix, useful for cross-compilation.
# can be left empy most of the time (default: search in $PATH)
#TOOLCHAIN_POSIX :=
#TOOLCHAIN_POSIX := arm-linux-gnueabihf-

# Prefix for the Clang compiler
#CLANG_PREFIX :=
#CLANG_PREFIX := /opt/my-clang-installation/

# --sysroot provided to the Clang compiler, useful for providing the path to
# the embedded toolchain so the proper headers are found.
# If left empty, the option is not provided to the compiler.
#CLANG_SYSROOT_POSIX :=

# Value passed to the compiler via `-march`. If not specified, will use
# `-march=native` on x86/x86_64 platforms and not pass the parameter on others.
#ARCH :=
#ARCH := armv7-m

# Use flags suitable for the macOS linker. If not specified, autodetect.
#EXPECT_MACOS_LINKER := 0

# Additional compiler flags.
#CPPFLAGS +=

# Additional linker flags.
#LDFLAGS +=

# Additional flags passed to compiler and linker.
#ARCH_FLAGS +=

########################
# Compile-time defines #
########################

# The listen() backlog for incoming connections in the AAP 2.0 agent.
#CPPFLAGS += -DAAP2_AGENT_LISTEN_BACKLOG=2

# The maximum number of items waiting in the queue toward an AAP2 agent.
#CPPFLAGS += -DAAP2_AGENT_QUEUE_LENGTH=10

# The number of milliseconds the AAP 2.0 agent will wait for a response to an
# AAPMessage that it sends to a Client (before closing the connection).
#CPPFLAGS += -DAAP2_AGENT_TIMEOUT_MS=1000

# The minimum number of characters the pre-shared administrative secret for
# FIB and BDM operations is allowed to have. In debug builds, not providing
# a secret or providing a secret that is too short will only trigger a warning,
# while in release builds the program will abort.
#CPPFLAGS += -DAAP2_MINIMUM_PRE_SHARED_SECRET_LENGTH=16

# The sink identifier of the config agent for dtn-scheme EIDs.
#CPPFLAGS += -DAGENT_ID_CONFIG_DTN=\"config\"

# The sink identifier (service no.) of the config agent for ipn-scheme EIDs.
#CPPFLAGS += -DAGENT_ID_CONFIG_IPN=\"9000\"

# The sink identifier of the echo agent for dtn-scheme EIDs.
#CPPFLAGS += -DAGENT_ID_ECHO_DTN=\"echo\"

# The sink identifier (service no.) of the echo agent for ipn-scheme EIDs.
#CPPFLAGS += -DAGENT_ID_ECHO_IPN=\"9002\"

# The sink identifier of the sqlite agent for dtn-scheme EIDs.
#CPPFLAGS += -DAGENT_ID_SQLITE_DTN=\"sqlite\"

# The sink identifier (service no.) of the sqlite agent for ipn-scheme EIDs.
#CPPFLAGS += -DAGENT_ID_SQLITE_IPN=\"9003\"

# The socket `listen()` backlog length of the Application Agent.
#CPPFLAGS += -DAPPLICATION_AGENT_BACKLOG=2

# The size, in bytes, of the receive buffer used by the Application Agent.
#CPPFLAGS += -DAPPLICATION_AGENT_RX_BUFFER_SIZE=512

# Different versions of the Bundle-in-Bundle-Encapsulation draft use different
# AR type codes for the BPDU. ION uses 7 (from draft v1), drafts up to v4 use
# 3, and draft-ietf-dtn-bibect-05 64443 (default).
#CPPFLAGS += -DBIBE_AR_TYPE_CODE=64443

# Maximum number of fragments that may be created by the BPA.
#CPPFLAGS += -DBUNDLE_MAX_FRAGMENT_COUNT=65536

# The maximum size of bundles that the BPA is allowed to process.
#CPPFLAGS += -DBUNDLE_MAX_SIZE=1073741824

# The maximum length of the bundle processor queue until it starts blocking.
#CPPFLAGS += -DBUNDLE_QUEUE_LENGTH=4000

# The maximum number of milliseconds the bundle processor blocks when writing
# into the bundle transmission queue.
#CPPFLAGS += -DBUNDLE_SEND_TIMEOUT_MS=10

# Accept bundles that have no CRC for the primary block and no BIB.
#CPPFLAGS += -DBUNDLE7_ALLOW_NO_PRIMARY_CRC_NO_BIB=1

# Produce (insert) "previous node" extension blocks for all BPv7 bundles.
#CPPFLAGS += -DBUNDLE7_TX_PRODUCE_PREVIOUS_NODE_BLOCK=0

# Whether or not to close an active connection after the end of a contact.
# Note that closure by the other peer may often not be recognized and, thus,
# setting this to zero may lead to dead connections being used for some time.
#CPPFLAGS += -DCLA_MTCP_CLOSE_AFTER_CONTACT=1

# Use the ION STCP header format (a 32-bit unsigned integer length field).
#CPPFLAGS += -DCLA_MTCP_ION_STCP_COMPATIBILITY=0

# The size of the chunked-read buffer of the CLA RX task.
#CPPFLAGS += -DCLA_RX_BUFFER_SIZE=64

# The maximum time interval, in milliseconds, between receiving two bytes part
# of the same bundle. When this time has passed, all parsers are reset.
# Setting this can help when broken records may be part of the incoming data.
#CPPFLAGS += -DCLA_RX_READ_TIMEOUT=0

# The length of the command queue between the SQLiteCLA and the SQLiteAgent.
#CPPFLAGS += -DCLA_SQLITE_AGENT_QUEUE_LENGTH=10

# Set a SQLite busy timeout in milliseconds. Set to zero to turn off.
# See: https://www.sqlite.org/c3ref/busy_timeout.html
# Especially under load and with concurrent access to the storage agent it is
# necessary to use a timeout to prevent SQLITE_BUSY errors.
# See also: https://www.sqlite.org/src/doc/204dbc15a682125c/doc/wal-lock.md
#CPPFLAGS += -DCLA_SQLITE_BUSY_TIMEOUT_MS=100

# The node ID that the SQLite CLA will register (create a FIB entry) for.
#CPPFLAGS += -DCLA_SQLITE_NODE_ID=\"dtn:storage\"

# Whether to abort() uD3TN in case a TCP CLA terminates finally.
#CPPFLAGS += -DCLA_TCP_ABORT_ON_LINK_TASK_TERMINATION=0

# Whether to set SO_REUSEPORT on listening TCP sockets. Note that this may have
# security implications and it is Linux-/BSD-specific.
#CPPFLAGS += -DCLA_TCP_ALLOW_REUSE_PORT=0

# Maximum number of attempts to create a connection on contact start.
# The default value of 0 means infinite.
#CPPFLAGS += -DCLA_TCP_MAX_RETRY_ATTEMPTS=0

# The length of the listen backlog for multi-connection TCP CLAs.
#CPPFLAGS += -DCLA_TCP_MULTI_BACKLOG=64

# The number of slots in the TCP multi-connection CLA parameters hash table,
# which stores the currently-active connections to other nodes.
#CPPFLAGS += -DCLA_TCP_PARAM_HTAB_SLOT_COUNT=32

# Interval between attempts to create a connection on contact start, in ms.
#CPPFLAGS += -DCLA_TCP_RETRY_INTERVAL_MS=1000

# The length of the listen backlog for single-connection TCP CLAs.
#CPPFLAGS += -DCLA_TCP_SINGLE_BACKLOG=1

# The SPP timestamp format preamble to be sent by the TCPSPP CLA.
#CPPFLAGS += -DCLA_TCPSPP_TIMESTAMP_FORMAT_PREAMBLE=0x1c

# Whether or not to encode and read the SPP timestamp P-field.
#CPPFLAGS += -DCLA_TCPSPP_TIMESTAMP_USE_P_FIELD="(true)"

# Whether or not to encode and read the SPP CRC checksum.
#CPPFLAGS += -DCLA_TCPSPP_USE_CRC="(true)"

# The maximum size of space packets, which is used for calculating the maximum
# bundle size reported by the CLA.
#CPPFLAGS += -DCLA_TCPSPP_SPP_MAX_SIZE="(1 << 16)"

# The maximum number of bundles to be sent per second, to prevent overloading
# the underlying communication system (default: unlimited).
#CPPFLAGS += -DCLA_TX_RATE_LIMIT=0

# The length of the outgoing-bundle queue toward the TX task.
#CPPFLAGS += -DCONTACT_TX_TASK_QUEUE_LENGTH=100

# The default value for the `--aap-host` argument.
#CPPFLAGS += -DDEFAULT_AAP_NODE=\"0.0.0.0\"

# The default value for the `--aap-port` argument.
#CPPFLAGS += -DDEFAULT_AAP_SERVICE=\"4242\"

# The default value for the `--aap-socket` argument.
#CPPFLAGS += -DDEFAULT_AAP_SOCKET_FILENAME=\"ud3tn.socket\"

# The default value for the `--aap2-host` argument.
#CPPFLAGS += -DDEFAULT_AAP2_NODE=\"0.0.0.0\"

# The default value for the `--aap2-port` argument.
#CPPFLAGS += -DDEFAULT_AAP2_SERVICE=\"4244\"

# The default value for the `--aap2-socket` argument.
#CPPFLAGS += -DDEFAULT_AAP2_SOCKET_FILENAME=\"ud3tn.aap2.socket\"

# The default CRC type used for newly-created BPv7 bundles. See `bundle.h`.
#CPPFLAGS += -DDEFAULT_BPV7_CRC_TYPE=BUNDLE_CRC_TYPE_16

# The default value for the `--lifetime` argument, in seconds.
#CPPFLAGS += -DDEFAULT_BUNDLE_LIFETIME_S=86400

# The default value for the `--bp-version` argument - either `6` or `7`.
#CPPFLAGS += -DDEFAULT_BUNDLE_VERSION=7

# The default value for the `--cla` argument.
#CPPFLAGS += -DDEFAULT_CLA_OPTIONS="\"sqlite:file::memory:?cache=shared;tcpclv3:*,4556;smtcp:*,4222,false;mtcp:*,4224\""

# The default value for the `--log-level` argument.
# For release builds, if this is not set, the default value is 2 (WARNING).
# Note that log level 4 (DEBUG) is only available in debug builds.
#CPPFLAGS += -DDEFAULT_LOG_LEVEL=3

# The default value for the `--node-id` argument.
#CPPFLAGS += -DDEFAULT_NODE_ID=\"dtn://ud3tn.dtn/\"

# Force the use of the 2-element IPN EID format even when the 3-element format is available.
# This can be used for compatibility with BPv7 implementations that don't support RFC 9758.
#CPPFLAGS += -DEID_IPN_FORCE_2_ELEMENT=0

# The number of slots in the node hashtable of µD3TN's Forwarding Information
# Base (FIB).
#CPPFLAGS += -DFIB_NODE_HTAB_SLOT_COUNT=32

# The number of slots in the CLA-address hashtable of µD3TN's Forwarding
# Information Base (FIB).
#CPPFLAGS += -DFIB_CLA_ADDR_HTAB_SLOT_COUNT=64

# Compat. router: Agent ID of the config. agent if using the dtn scheme.
#CPPFLAGS += -DROUTER_AGENT_ID_CONFIG_DTN=\"config\"

# Compat. router: Agent ID of the config. agent if using the ipn scheme.
#CPPFLAGS += -DROUTER_AGENT_ID_CONFIG_IPN=\"9000\"

# Compat. router: Default minimum payload for creating a fragment.
#CPPFLAGS += -DROUTER_FRAGMENT_MIN_PAYLOAD=8

# Compat. router: Default maximum bundle size.
#CPPFLAGS += -DROUTER_GLOBAL_MBS=SIZE_MAX

# Compat. router: Maximum number of concurrent contacts that can be handled by
# the Contact Manager.
#CPPFLAGS += -DROUTER_MAX_CONCURRENT_CONTACTS=10

# Compat. router: Maximum number of fragments created by the router.
#CPPFLAGS += -DROUTER_MAX_FRAGMENTS=512

# Compat. router: Number of slots in the node hash table.
#CPPFLAGS += -DROUTER_NODE_HTAB_SLOT_COUNT=128