From 708556b4437479409ea676efd024294e145c3c2c Mon Sep 17 00:00:00 2001
From: Vincent Li <vincent.mc.li@gmail.com>
Date: Sat, 21 Dec 2024 17:56:33 -0800
Subject: [PATCH] libbpf: add libbpf

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
---
 config/rootfiles/common/libbpf |  4 ++
 lfs/libbpf                     | 77 ++++++++++++++++++++++++++++++++++
 make.sh                        |  1 +
 3 files changed, 82 insertions(+)
 create mode 100644 config/rootfiles/common/libbpf
 create mode 100644 lfs/libbpf

diff --git a/config/rootfiles/common/libbpf b/config/rootfiles/common/libbpf
new file mode 100644
index 000000000..b3ef39c1a
--- /dev/null
+++ b/config/rootfiles/common/libbpf
@@ -0,0 +1,4 @@
+usr/lib/libbpf.a
+usr/lib/libbpf.so
+usr/lib/libbpf.so.1
+usr/lib/libbpf.so.1.4.6
diff --git a/lfs/libbpf b/lfs/libbpf
new file mode 100644
index 000000000..aa767c2de
--- /dev/null
+++ b/lfs/libbpf
@@ -0,0 +1,77 @@
+###############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2007-2023  IPFire Team  <info@ipfire.org>                     #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
+
+###############################################################################
+# Definitions
+###############################################################################
+
+include Config
+
+VER        = 1.4.6
+
+THISAPP    = libbpf-$(VER)
+DL_FILE    = $(THISAPP).tar.gz
+DL_FROM    = $(URL_IPFIRE)
+DIR_APP    = $(DIR_SRC)/$(THISAPP)
+TARGET     = $(DIR_INFO)/$(THISAPP)
+
+###############################################################################
+# Top-level Rules
+###############################################################################
+
+objects = $(DL_FILE)
+
+$(DL_FILE) = $(DL_FROM)/$(DL_FILE)
+
+$(DL_FILE)_BLAKE2 = 590eb2f8f5a8caa24c94a8c3e0eddb0c8685051ea08967b4307fc8e6df41b81237637fe70f946f2579520948b56dd08fb0b6f4db9218e561930c9636f84d97ca
+
+install : $(TARGET)
+
+check : $(patsubst %,$(DIR_CHK)/%,$(objects))
+
+download :$(patsubst %,$(DIR_DL)/%,$(objects))
+
+b2 : $(subst %,%_BLAKE2,$(objects))
+
+###############################################################################
+# Downloading, checking, b2sum
+###############################################################################
+
+$(patsubst %,$(DIR_CHK)/%,$(objects)) :
+	@$(CHECK)
+
+$(patsubst %,$(DIR_DL)/%,$(objects)) :
+	@$(LOAD)
+
+$(subst %,%_BLAKE2,$(objects)) :
+	@$(B2SUM)
+
+###############################################################################
+# Installation Details
+###############################################################################
+
+$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
+	@$(PREBUILD)
+	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
+
+	cd $(DIR_APP)/src && make $(MAKETUNING)
+	cd $(DIR_APP)/src && make install
+	@rm -rf $(DIR_APP)
+	@$(POSTBUILD)
diff --git a/make.sh b/make.sh
index b1d20140f..5f13414ec 100755
--- a/make.sh
+++ b/make.sh
@@ -2089,6 +2089,7 @@ build_system() {
 	lfsmake2 inotify-tools
 	lfsmake2 grub-btrfs
 	lfsmake2 pahole
+	lfsmake2 libbpf
 	lfsmake2 llvm-project
 
 	lfsmake2 linux