initial buildroot for linux 5.15

package/dhcpcd/Config.in

@@ -0,0 +1,10 @@
+comment "dhcpcd needs a toolchain w/ headers >= 3.1"
+	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
+
+config BR2_PACKAGE_DHCPCD
+	bool "dhcpcd"
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1 # sa_family_t in linux/socket.h
+	help
+	  An RFC2131 compliant DHCP client
+
+	  http://roy.marples.name/projects/dhcpcd/

package/dhcpcd/S41dhcpcd

@@ -0,0 +1,33 @@
+#!/bin/sh
+#
+# Start/stop dhcpcd
+#
+
+DAEMON=/sbin/dhcpcd
+CONFIG=/etc/dhcpcd.conf
+PIDFILE=/var/run/dhcpcd.pid
+
+[ -f $CONFIG ] || exit 0
+
+case "$1" in
+  start)
+	echo "Starting dhcpcd..."
+	start-stop-daemon -S -x "$DAEMON" -p "$PIDFILE" -- -f "$CONFIG"
+	;;
+  stop)
+	echo "Stopping dhcpcd..."
+	start-stop-daemon -K -x "$DAEMON" -p "$PIDFILE" -o
+	;;
+  reload|force-reload)
+	echo "Reloading dhcpcd configuration..."
+	"$DAEMON" -s reload
+	;;
+  restart)
+	"$0" stop
+	sleep 1 # Prevent race condition: ensure dhcpcd stops before start.
+	"$0" start
+	;;
+  *)
+	echo "Usage: $0 {start|stop|restart|reload|force-reload}"
+	exit 1
+esac

package/dhcpcd/dhcpcd.hash

@@ -0,0 +1,4 @@
+# sha256 from ftp://roy.marples.name/pub/dhcpcd/dhcpcd-9.4.1.tar.xz.distinfo
+sha256  819357634efed1ea5cf44ec01b24d3d3f8852fec8b4249925dcc5667c54e376c  dhcpcd-9.4.1.tar.xz
+# Locally calculated
+sha256  4f21ce186859516dcab9b3197f3e9533a9bd1b87932015c87f539af4a48cd592  LICENSE

package/dhcpcd/dhcpcd.mk

@@ -0,0 +1,89 @@
+################################################################################
+#
+# dhcpcd
+#
+################################################################################
+
+DHCPCD_VERSION = 9.4.1
+DHCPCD_SOURCE = dhcpcd-$(DHCPCD_VERSION).tar.xz
+DHCPCD_SITE = http://roy.marples.name/downloads/dhcpcd
+DHCPCD_DEPENDENCIES = host-pkgconf
+DHCPCD_LICENSE = BSD-2-Clause
+DHCPCD_LICENSE_FILES = LICENSE
+DHCPCD_CPE_ID_VENDOR = dhcpcd_project
+
+DHCPCD_CONFIG_OPTS = \
+	--libexecdir=/lib/dhcpcd \
+	--os=linux \
+	--privsepuser=dhcpcd
+
+# AUDIT_ARCH_{OPENRISC,SH,SHEL,SH64,SHEL64} are only available with kernel >= 3.7
+ifeq ($(BR2_or1k)$(BR2_sh):$(BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7),y:)
+DHCPCD_CONFIG_OPTS += --disable-privsep
+endif
+
+# AUDIT_ARCH_MICROBLAZE is only available with kernel >= 3.18
+ifeq ($(BR2_microblazeel)$(BR2_microblazebe):$(BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18),y:)
+DHCPCD_CONFIG_OPTS += --disable-privsep
+endif
+
+# AUDIT_ARCH_XTENSA is only available with kernel >= 5.0
+ifeq ($(BR2_xtensa):$(BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0),y:)
+DHCPCD_CONFIG_OPTS += --disable-privsep
+endif
+
+# AUDIT_ARCH_{ARCOMPACT,ARCV2,NDS32,NIOS2} are only available with kernel >= 5.2
+ifeq ($(BR2_arceb)$(BR2_arcle)$(BR2_nds32)$(BR2_nios2):$(BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_2),y:)
+DHCPCD_CONFIG_OPTS += --disable-privsep
+endif
+
+ifeq ($(BR2_PACKAGE_HAS_UDEV),y)
+DHCPCD_CONFIG_OPTS += --with-udev
+DHCPCD_DEPENDENCIES += udev
+else
+DHCPCD_CONFIG_OPTS += --without-udev
+endif
+
+ifeq ($(BR2_STATIC_LIBS),y)
+DHCPCD_CONFIG_OPTS += --enable-static
+endif
+
+ifeq ($(BR2_USE_MMU),)
+DHCPCD_CONFIG_OPTS += --disable-fork --disable-privsep
+endif
+
+define DHCPCD_CONFIGURE_CMDS
+	(cd $(@D); $(TARGET_CONFIGURE_OPTS) ./configure $(DHCPCD_CONFIG_OPTS))
+endef
+
+define DHCPCD_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) all
+endef
+
+define DHCPCD_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) install DESTDIR=$(TARGET_DIR)
+endef
+
+# When network-manager is enabled together with dhcpcd, it will use
+# dhcpcd as a DHCP client, and will be in charge of running, so we
+# don't want the init script or service file to be installed.
+ifeq ($(BR2_PACKAGE_NETWORK_MANAGER),)
+define DHCPCD_INSTALL_INIT_SYSV
+	$(INSTALL) -m 755 -D package/dhcpcd/S41dhcpcd \
+		$(TARGET_DIR)/etc/init.d/S41dhcpcd
+endef
+
+define DHCPCD_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 0644 package/dhcpcd/dhcpcd.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/dhcpcd.service
+endef
+endif
+
+define DHCPCD_USERS
+	dhcpcd -1 dhcpcd -1 * - - - dhcpcd user
+endef
+
+# NOTE: Even though this package has a configure script, it is not generated
+# using the autotools, so we have to use the generic package infrastructure.
+
+$(eval $(generic-package))

package/dhcpcd/dhcpcd.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=DHCP client
+After=network.target
+
+[Service]
+Type=forking
+EnvironmentFile=-/etc/default/dhcpcd
+PIDFile=/run/dhcpcd.pid
+ExecStart=/sbin/dhcpcd $DAEMON_ARGS
+Restart=always
+
+[Install]
+WantedBy=multi-user.target