initial buildroot for linux 5.15

package/dhcpdump/0001-use-non-bsd-structures.patch

@@ -0,0 +1,23 @@
+The udphdr structure has uh_* fields when _FAVOR_BSD is
+defined. Otherwise, the fields are just named source, dest, len and
+check. See <netinet/udp.h>.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: dhcpdump-1.8/dhcpdump.c
+===================================================================
+--- dhcpdump-1.8.orig/dhcpdump.c	2011-05-17 20:20:46.506980003 +0200
++++ dhcpdump-1.8/dhcpdump.c	2011-05-17 20:20:59.338979999 +0200
+@@ -163,10 +163,10 @@
+ 	strcpy(ip_origin, (u_char *)inet_ntoa(ip->ip_src));
+ 	strcpy(ip_destination, (u_char *)inet_ntoa(ip->ip_dst));
+ 
+-	if (hmask && check_ch((u_char *)(sp + offset), ntohs(udp->uh_ulen)))
++	if (hmask && check_ch((u_char *)(sp + offset), ntohs(udp->len)))
+ 		return;
+ 
+-	printdata((u_char *)(sp + offset), ntohs(udp->uh_ulen));
++	printdata((u_char *)(sp + offset), ntohs(udp->len));
+ }
+ 
+ // check for matching CHADDR (Peter Apian-Bennewitz <apian@ise.fhg.de>)

package/dhcpdump/Config.in

@@ -0,0 +1,7 @@
+config BR2_PACKAGE_DHCPDUMP
+	bool "dhcpdump"
+	select BR2_PACKAGE_LIBPCAP
+	help
+	  A tool for monitoring dhcp requests using tcpdump.
+
+	  http://www.mavetju.org/unix/general.php

package/dhcpdump/dhcpdump.hash

@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 6d5eb9418162fb738bc56e4c1682ce7f7392dd96e568cc996e44c28de7f77190  dhcpdump-1.8.tar.gz
+sha256 bab6ca76b7e93885396513689b1248dfb0e8fd662695b8bd1b26784ef71a0192  LICENSE

package/dhcpdump/dhcpdump.mk

@@ -0,0 +1,30 @@
+################################################################################
+#
+# dhcpdump
+#
+################################################################################
+
+DHCPDUMP_VERSION = 1.8
+DHCPDUMP_SITE = http://www.mavetju.org/download
+DHCPDUMP_DEPENDENCIES = libpcap
+DHCPDUMP_LICENSE = BSD-2-Clause
+DHCPDUMP_LICENSE_FILES = LICENSE
+
+DHCPDUMP_LIBS = -lpcap
+ifeq ($(BR2_STATIC_LIBS),y)
+DHCPDUMP_LIBS += `$(STAGING_DIR)/usr/bin/pcap-config --static --additional-libs`
+endif
+
+# glibc, uclibc and musl have strsep()
+DHCPDUMP_CFLAGS = $(TARGET_CFLAGS) -DHAVE_STRSEP
+
+define DHCPDUMP_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) CC="$(TARGET_CC) $(DHCPDUMP_CFLAGS) \
+		-D_GNU_SOURCE" LIBS="$(DHCPDUMP_LIBS)" dhcpdump
+endef
+
+define DHCPDUMP_INSTALL_TARGET_CMDS
+	$(INSTALL) -m 0755 -D $(@D)/dhcpdump $(TARGET_DIR)/usr/bin/dhcpdump
+endef
+
+$(eval $(generic-package))