initial buildroot for linux 5.15

package/i2pd/Config.in

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+config BR2_PACKAGE_I2PD
+	bool "i2pd"
+	depends on BR2_USE_MMU # fork()
+	depends on BR2_TOOLCHAIN_HAS_ATOMIC
+	# pthread_condattr_setclock
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-filesystem
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_USE_WCHAR # boost
+	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # exception_ptr
+	select BR2_PACKAGE_BOOST
+	select BR2_PACKAGE_BOOST_DATE_TIME
+	select BR2_PACKAGE_BOOST_FILESYSTEM
+	select BR2_PACKAGE_BOOST_PROGRAM_OPTIONS
+	select BR2_PACKAGE_BOOST_SYSTEM
+	select BR2_PACKAGE_OPENSSL
+	select BR2_PACKAGE_ZLIB
+	help
+	  i2pd (I2P Daemon) is a full-featured C++ implementation of I2P
+	  client.
+
+	  I2P (Invisible Internet Protocol) is a universal anonymous
+	  network layer.
+	  All communications over I2P are anonymous and end-to-end
+	  encrypted, participants don't reveal their real IP addresses.
+
+	  http://i2pd.website
+
+comment "i2pd needs a toolchain w/ C++, NPTL, wchar"
+	depends on BR2_USE_MMU
+	depends on BR2_TOOLCHAIN_HAS_ATOMIC
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_HAS_THREADS_NPTL || !BR2_USE_WCHAR
+
+comment "i2pd needs exception_ptr"
+	depends on BR2_USE_MMU
+	depends on BR2_TOOLCHAIN_HAS_ATOMIC
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
+	depends on BR2_TOOLCHAIN_HAS_GCC_BUG_64735

package/i2pd/S99i2pd

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+#!/bin/sh
+
+NAME=i2pd
+PIDFILE=/var/run/$NAME.pid
+DAEMON=/usr/bin/$NAME
+DAEMON_ARGS="--conf=/etc/i2pd/i2pd.conf --tunconf=/etc/i2pd/tunnels.conf --pidfile=/var/run/i2pd.pid --logfile=/var/log/i2pd.log --daemon --service"
+
+start() {
+	printf "Starting $NAME: "
+	start-stop-daemon -S -q -m -b -p $PIDFILE --exec $DAEMON -- $DAEMON_ARGS
+	[ $? = 0 ] && echo "OK" || echo "FAIL"
+}
+stop() {
+	printf "Stopping $NAME: "
+	start-stop-daemon -K -q -p $PIDFILE
+	[ $? = 0 ] && echo "OK" || echo "FAIL"
+}
+restart() {
+	stop
+	start
+}
+
+case "$1" in
+  start)
+	start
+	;;
+  stop)
+	stop
+	;;
+  restart|reload)
+	restart
+	;;
+  *)
+	echo "Usage: $0 {start|stop|restart}"
+	exit 1
+esac
+
+exit $?

package/i2pd/i2pd.hash

@@ -0,0 +1,4 @@
+# From https://github.com/PurpleI2P/i2pd/releases/download/2.39.0/SHA512SUMS
+sha512  6b38e6e2e763e94ffe9d11eb2f9a0e9554560bb4fec95891240adf5bc0a9639f879dac4ff3712a9f8e00895b7bbeabc854887e61fe9f9755c33f96899e20aa76  i2pd-2.39.0.tar.gz
+# Locally computed:
+sha256  9c87aff490b272254d716475e3c4973f5f64af1d18f9f6962c1e61e252e1ad9a  LICENSE

package/i2pd/i2pd.mk

@@ -0,0 +1,61 @@
+################################################################################
+#
+# i2pd
+#
+################################################################################
+
+I2PD_VERSION = 2.39.0
+I2PD_SITE = $(call github,PurpleI2P,i2pd,$(I2PD_VERSION))
+I2PD_LICENSE = BSD-3-Clause
+I2PD_LICENSE_FILES = LICENSE
+I2PD_SUBDIR = build
+I2PD_DEPENDENCIES = \
+	boost \
+	openssl \
+	zlib
+
+I2PD_CONF_OPTS += -DWITH_GUI=OFF
+
+ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
+I2PD_CONF_OPTS += \
+	-DHAVE_CXX_ATOMICS_WITHOUT_LIB=OFF \
+	-DHAVE_CXX_ATOMICS64_WITHOUT_LIB=OFF
+endif
+
+ifeq ($(BR2_STATIC_LIBS),y)
+I2PD_CONF_OPTS += -DWITH_STATIC=ON
+else
+I2PD_CONF_OPTS += -DWITH_STATIC=OFF
+endif
+
+ifeq ($(BR2_PACKAGE_LIBMINIUPNPC),y)
+I2PD_DEPENDENCIES += libminiupnpc
+I2PD_CONF_OPTS += -DWITH_UPNP=ON
+else
+I2PD_CONF_OPTS += -DWITH_UPNP=OFF
+endif
+
+define I2PD_INSTALL_CONFIGURATION_FILES
+	$(INSTALL) -D -m 644 $(@D)/contrib/i2pd.conf \
+		$(TARGET_DIR)/etc/i2pd/i2pd.conf
+	$(INSTALL) -D -m 644 $(@D)/contrib/tunnels.conf \
+		$(TARGET_DIR)/etc/i2pd/tunnels.conf
+	mkdir -p $(TARGET_DIR)/var/lib/i2pd
+	cp -a $(@D)/contrib/certificates $(TARGET_DIR)/var/lib/i2pd
+endef
+
+define I2PD_USERS
+	i2pd -1 i2pd -1 * /var/lib/i2pd - - I2P Daemon
+endef
+
+define I2PD_INSTALL_INIT_SYSV
+	$(INSTALL) -D -m 0755 package/i2pd/S99i2pd \
+		$(TARGET_DIR)/etc/init.d/S99i2pd
+endef
+
+define I2PD_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 644 package/i2pd/i2pd.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/i2pd.service
+endef
+
+$(eval $(cmake-package))

package/i2pd/i2pd.service

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+[Unit]
+Description=I2P Router written in C++
+After=network.target
+
+[Service]
+User=i2pd
+Group=i2pd
+RuntimeDirectory=i2pd
+RuntimeDirectoryMode=0700
+LogsDirectory=i2pd
+LogsDirectoryMode=0700
+Type=simple
+ExecStart=/usr/bin/i2pd --conf=/etc/i2pd/i2pd.conf --tunconf=/etc/i2pd/tunnels.conf --pidfile=/run/i2pd/i2pd.pid --logfile=/var/log/i2pd/i2pd.log --daemon --service
+ExecReload=/bin/kill -HUP $MAINPID
+PIDFile=/run/i2pd/i2pd.pid
+### Uncomment, if auto restart needed
+#Restart=on-failure
+
+### Use SIGINT for graceful stop daemon.
+# i2pd stops accepting new tunnels and waits ~10 min while old ones do not die.
+KillSignal=SIGINT
+TimeoutStopSec=10m
+
+# If you have problems with hanging i2pd, you can try enable this
+#LimitNOFILE=4096
+PrivateDevices=yes
+
+[Install]
+WantedBy=multi-user.target