bpftune: add new package

net/bpftune/Makefile

@@ -0,0 +1,157 @@
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=bpftune
+PKG_VERSION:=0.4.2-f562f77
+PKG_RELEASE:=1
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/KyleGospo/bpftune.git
+PKG_SOURCE_DATE:=2026-08-26
+PKG_SOURCE_VERSION:=f562f776aac16478a2eeae1bf4871a66dd0070c3
+PKG_MIRROR_HASH:=fb49aaad19ee711226b8bf62ded281e7346750c4e4d08909b2a37ac58765438c
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(if $(BUILD_VARIANT),bpftune-$(BUILD_VARIANT)/)bpftune-$(PKG_VERSION)
+
+PKG_LICENSE:=GPL-2.0-WITH-Linux-syscall-note
+PKG_LICENSE_FILES:=COPYING
+PKG_MAINTAINER:=Shon Sebastian <fluffball3@proton.me>
+
+PKG_BUILD_DEPENDS:=bpf-headers
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/bpf.mk
+
+define Package/bpftune/default
+  SECTION:=net
+  CATEGORY:=Network
+  DEPENDS:=+@KERNEL_BPF_EVENTS +@KERNEL_CGROUPS +@KERNEL_CGROUP_BPF \
+	   +kmod-tcp-bbr +libnl-route +libcap +libbpf \
+	   $(BPF_DEPENDS)
+endef
+
+define Package/bpftune
+  $(call Package/bpftune/default)
+  URL:=https://github.com/oracle/bpftune
+  TITLE:=BPF driven auto-tuning (needs TCP_CONG_HTCP and TCP_CONG_DCTCP)
+  CONFLICTS:=bpftune-gaming bpftune-gaming-full
+endef
+
+define Package/bpftune-full
+  $(call Package/bpftune/default)
+  URL:=https://github.com/oracle/bpftune
+  TITLE:=bpftune with BTF support (might cause crashloops on limited hardware).
+  DEPENDS:=+bpftune +@KERNEL_DEBUG_INFO +@KERNEL_DEBUG_INFO_BTF \
+	   +@KERNEL_NAMESPACES +@KERNEL_NET_NS
+endef
+
+define Package/bpftune-gaming
+  $(call Package/bpftune/default)
+  URL:=https://github.com/KyleGospo/bpftune
+  TITLE:=Fork of bpftune with gaming tuner without BTF support (needs TCP_CONG_HTCP and TCP_CONG_DCTCP)
+  VARIANT:=gaming
+  CONFLICTS:=bpftune bpftune-full
+endef
+
+define Package/bpftune-gaming-full
+  $(call Package/bpftune/default)
+  URL:=https://github.com/KyleGospo/bpftune
+  TITLE:=bpftune-gaming with BTF support (might cause crashloops on limited hardware)
+  DEPENDS:=+bpftune-gaming +@KERNEL_DEBUG_INFO +@KERNEL_DEBUG_INFO_BTF \
+	   +@KERNEL_NAMESPACES +@KERNEL_NET_NS
+endef
+
+define Package/bpftune/description
+  bpftune aims to provide lightweight, always-on auto-tuning of system
+  behaviour. By using BPF observability features, we can continuously
+  monitor and adjust system behaviour at a fine grain. (Needs TCP_CONG_HTCP
+  and TCP_CONG_DCTCP from target/linux/generic/config-<version> manually enabled
+  to function correctly. Runs on no-BTF mode).
+endef
+
+define Package/bpftune-full/description
+  bpftune with BTF support for intended functionality. Needs TCP_CONG_HTCP
+  and TCP_CONG_DCTCP from target/linux/generic/config-<version> manually enabled
+  to function, and KERNEL_DEBUG_INFO_REDUCED disabled manually. This package enables
+  KERNEL_NET_NS and KERNEL_DEBUG_INFO_BTF as well which might cause crashloops on
+  limited hardware eg. single core cpu routers.
+endef
+
+define Package/bpftune-gaming/description
+  Fork of bpftune which adds separate tuner and changes for gaming. (Needs
+  TCP_CONG_HTCP and TCP_CONG_DCTCP from target/linux/generic/config-<version>
+  manually enabled to function correctly. Runs on no-BTF mode).
+endef
+
+define Package/bpftune-gaming-full/description
+  bpftune-gaming with BTF support for intended functionality. Needs TCP_CONG_HTCP
+  and TCP_CONG_DCTCP from target/linux/generic/config-<version> manually enabled
+  to function, and KERNEL_DEBUG_INFO_REDUCED disabled manually. This package enables
+  KERNEL_NET_NS and KERNEL_DEBUG_INFO_BTF as well which might cause crashloops on
+  limited hardware eg. single core cpu routers.
+endef
+
+bpf_srcarch=$(subst \
+  aarch64,arm64,$(subst \
+  armeb,arm,$(subst \
+  i386,x86,$(subst \
+  x86_64,x86,$(subst \
+  loongarch64,loongarch,$(subst \
+  mipsel,mips,$(subst \
+  mips64,mips,$(subst \
+  powerpc64,powerpc,$(subst \
+  riscv64,riscv,$(1))))))))))
+
+BPF_SRCARCH:=$(call bpf_srcarch,$(ARCH))
+
+MAKE_FLAGS += \
+	BPFTUNE_VERSION="$(PKG_VERSION)-$(PKG_RELEASE)" \
+	SRCARCH="$(BPF_SRCARCH)" \
+	BPF_TARGET="$(BPF_TARGET)" \
+	BPF_CLANG="$(CLANG)" \
+	LLVM_STRIP="$(LLVM_STRIP)" \
+	PKG_BUILD_DIR=$(PKG_BUILD_DIR) \
+	GAMING_BUILD=$(if $(filter gaming,$(BUILD_VARIANT)),true)
+
+define Package/bpftune/conffiles
+/etc/config/bpftune
+endef
+define Package/bpftune-gaming/conffiles
+/etc/config/bpftune
+endef
+
+define Package/bpftune/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/bpftune $(1)/usr/sbin/bpftune
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/libbpftune.so.0.4.2 $(1)/usr/lib/libbpftune.so.0.4.2
+	$(LN) libbpftune.so.0.4.2 $(1)/usr/lib/libbpftune.so
+	$(INSTALL_DIR) $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/tcp_buffer_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/route_table_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/neigh_table_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/sysctl_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/tcp_conn_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/netns_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/net_buffer_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/ip_frag_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/udp_buffer_tuner.so $(1)/usr/lib/bpftune
+	$(INSTALL_DIR) $(1)/etc
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_DATA) ./files/bpftune.confd $(1)/etc/config/bpftune
+	$(INSTALL_BIN) ./files/bpftune.initd $(1)/etc/init.d/bpftune
+endef
+
+define Package/bpftune-gaming/install
+	$(call Package/bpftune/install)
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/gaming_tuner.so $(1)/usr/lib/bpftune
+endef
+
+$(eval $(call BuildPackage,bpftune))
+$(eval $(call BuildPackage,bpftune-full))
+$(eval $(call BuildPackage,bpftune-gaming))
+$(eval $(call BuildPackage,bpftune-gaming-full))

net/bpftune/files/bpftune.confd

@@ -0,0 +1,2 @@
+config defaults 'defaults'
+	option command_args "-R -c /sys/fs/cgroup"

net/bpftune/files/bpftune.initd

@@ -0,0 +1,37 @@
+#!/bin/sh /etc/rc.common
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+USE_PROCD=1
+
+START=81
+STOP=81
+
+NAME=bpftune
+PROG=/usr/sbin/bpftune
+CONFIG=/etc/config/bpftune
+
+ARGS="-R -c /sys/fs/cgroup"
+EXTRA_COMMANDS="checkconf"
+
+checkconf() {
+	config_load 'bpftune'
+	config_get ARGS defaults command_args "$ARGS"
+	$PROG -S $ARGS 2>&1
+}
+
+start_pre() {
+	checkconf > /dev/null 2>&1
+}
+
+start_service()
+{
+	if ! start_pre; then
+		return 1
+	fi
+
+	procd_open_instance
+	procd_set_param file $CONFIG
+	procd_set_param command $PROG $ARGS
+	procd_set_param respawn
+	procd_close_instance
+}

net/bpftune/patches/build-src-only.patch

@@ -0,0 +1,28 @@
+From ef5d2d5e44dfc4e38e53da92843731b6317aa32d Mon Sep 17 00:00:00 2001
+From: Shon Sebastian <fluffball3@proton.me>
+Date: Tue, 22 Sep 2026 03:25:50 +0530
+Subject: [PATCH] build src only
+
+Simplify build
+
+Signed-off-by: Shon Sebastian <fluffball3@proton.me>
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 5e93dc0..c23a5f0 100644
+--- a/Makefile
++++ b/Makefile
+@@ -33,7 +33,7 @@ INSTALLPATH = $(installprefix)
+
+ .PHONY: all clean
+
+-all: srcdir docdir testdir
++all: srcdir
+
+ srcdir:
+ 	cd src; make
+-- 
+2.55.0
+

net/bpftune/patches/fix-Makefile.patch

@@ -0,0 +1,128 @@
+From cb358f17dd1c6b7154f36fe94d2dc5479d6e95c6 Mon Sep 17 00:00:00 2001
+From: Shon Sebastian <fluffball3@proton.me>
+Date: Tue, 22 Sep 2026 03:23:21 +0530
+Subject: [PATCH] fix Makefile
+
+Adapts build for openwrt
+
+Signed-off-by: Shon Sebastian <fluffball3@proton.me>
+---
+ src/Makefile | 53 ++++++++++++++++++++++++++++------------------------
+ 1 file changed, 29 insertions(+), 24 deletions(-)
+
+diff --git a/src/Makefile b/src/Makefile
+index 85a6d55..cb80c11 100644
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -15,21 +15,17 @@
+ # License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ #
+
+-ARCH ?= $(shell uname -m)
+-SRCARCH ?= $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
+-				  -e /arm64/!s/arm.*/arm/ -e s/sa110/arm/ \
+-				  -e s/aarch64.*/arm64/ )
+-
+ CLANG ?= clang
+ GCC_BPF ?=
+ LLC ?= llc
+ LLVM_STRIP ?= llvm-strip
+ BPFTOOL ?= bpftool
+-BPF_INCLUDE := /usr/include
+-BPF_LOCAL_INCLUDE := /usr/local/include
+-BPF_CFLAGS := -g -fno-stack-protector -Wall -Wno-incompatible-pointer-types-discards-qualifiers
+-NL_INCLUDE := /usr/include/libnl3
+-INCLUDES := -I../include -I$(BPF_INCLUDE) -I$(BPF_LOCAL_INCLUDE) -I$(NL_INCLUDE) -I../include/uapi
++BPF_CFLAGS += -g -fno-stack-protector -Wall -Wno-incompatible-pointer-types-discards-qualifiers
++
++INCLUDES := -I../include \
++	    -I$(STAGING_DIR)/usr/include \
++	    -I$(STAGING_DIR)/usr/include/libnl3
++
+ INSTALL ?= install
+
+ SBINPATH ?= $(shell rpm --eval '%{_sbindir}' 2>/dev/null)
+@@ -52,7 +48,7 @@ else
+ DEFAULT_LIBDIR := lib64
+ endif
+
+-libdir ?= $(DEFAULT_LIBDIR)
++libdir = lib
+ installprefix = $(DESTDIR)/$(prefix)
+
+ INSTALLPATH = $(installprefix)
+@@ -75,7 +71,7 @@ endif
+ VERSION = 0.4.2
+ VERSION_SCRIPT  := libbpftune.map
+
+-CFLAGS = -fPIC -Wall -Wextra -g -I../include -std=c99
++CFLAGS += -fPIC -Wall -Wextra -g -std=c99
+
+ CFLAGS += -DBPFTUNE_VERSION='"$(BPFTUNE_VERSION)"' \
+ 	  -DBPFTUNER_PREFIX_DIR='"$(prefix)"' \
+@@ -92,12 +88,12 @@ VMLINUX_BTF_PATHS := /sys/kernel/btf/vmlinux /boot/vmlinux-$(KERNEL_REL)
+ VMLINUX_BTF_PATH := $(or $(VMLINUX_BTF),$(firstword			       \
+ 					  $(wildcard $(VMLINUX_BTF_PATHS))))
+
+-# Some systems ship with a vmlinux.h; use it.
+-VMLINUX_H_PATH ?= /usr/include/$(ARCH)-linux-gnu/linux/bpf/
+-VMLINUX_H_FILE := $(wildcard $(VMLINUX_H_PATH)/vmlinux.h)
++# Try to reach generated vmlinux.h if it exists
++VMLINUX_H_FILE := $(wildcard $(PKG_BUILD_DIR)/vmlinux.h)
+
++# Defaults to ../include/bpftune/vmlinux_aarch64.h as the best available fallback.
+ ifneq ($(VMLINUX_H_FILE),)
+-BPF_CFLAGS += -DVMLINUX_H -I$(VMLINUX_H_PATH)
++BPF_CFLAGS += -DVMLINUX_H -I$(PKG_BUILD_DIR)
+ endif
+
+ OPATH :=
+@@ -114,9 +110,15 @@ MAKEFLAGS += --no-print-directory
+ submake_extras := feature_display=0
+ endif
+
++ifneq ($(GAMING_BUILD),)
+ TUNERS = tcp_buffer_tuner route_table_tuner neigh_table_tuner sysctl_tuner \
+ 	 tcp_conn_tuner netns_tuner net_buffer_tuner ip_frag_tuner \
+ 	 udp_buffer_tuner gaming_tuner
++else
++TUNERS = tcp_buffer_tuner route_table_tuner neigh_table_tuner sysctl_tuner \
++	 tcp_conn_tuner netns_tuner net_buffer_tuner ip_frag_tuner \
++	 udp_buffer_tuner
++endif
+
+ TUNER_OBJS = $(patsubst %,%.o,$(TUNERS))
+ TUNER_SRCS = $(patsubst %,%.c,$(TUNERS))
+@@ -209,18 +211,21 @@ $(OPATH)bpftune.o: $(OPATH)libbpftune.so
+ # check if GCC_BPF flag is set, otherwise use CLANG
+ ifeq ($(GCC_BPF),)
+ $(BPF_OBJS): $(patsubst %.o,%.c,$(BPF_OBJS)) ../include/bpftune/bpftune.bpf.h
+-	$(CLANG) $(BPF_CFLAGS) -D__TARGET_ARCH_$(SRCARCH) -O2 -target bpf \
+-		$(INCLUDES) -c $(patsubst %.o,%.c,$(@)) -o $(@)
++	$(BPF_CLANG) $(BPF_CFLAGS) -D__TARGET_ARCH_$(SRCARCH) -O2 -target $(BPF_TARGET) \
++		-I../include -c $(patsubst %.o,%.c,$(@)) -o $(@)
++	$(LLVM_STRIP) --strip-debug $(@)
+
+ $(LEGACY_BPF_OBJS): $(patsubst %.legacy.o,%.c,$(LEGACY_BPF_OBJS)) ../include/bpftune/bpftune.bpf.h
+-	$(CLANG) $(BPF_CFLAGS) -D__TARGET_ARCH_$(SRCARCH) -DBPFTUNE_LEGACY -O2 -target bpf \
+-		$(INCLUDES) -c $(patsubst %.legacy.o,%.c,$(@)) \
+-		-o $(@)
++	$(BPF_CLANG) $(BPF_CFLAGS) -D__TARGET_ARCH_$(SRCARCH) -DBPFTUNE_LEGACY -O2 -target $(BPF_TARGET) \
++		-I../include -c $(patsubst %.legacy.o,%.c,$(@)) \
++ 		-o $(@)
++	$(LLVM_STRIP) --strip-debug $(@)
+
+ $(NOBTF_BPF_OBJS): $(patsubst %.nobtf.o,%.c,$(NOBTF_BPF_OBJS)) ../include/bpftune/bpftune.bpf.h
+-	$(CLANG) $(BPF_CFLAGS) -D__TARGET_ARCH_$(SRCARCH) -DBPFTUNE_NOBTF -O2 -target bpf \
+-		$(INCLUDES) -c $(patsubst %.nobtf.o,%.c,$(@)) \
+-		-o $(@)
++	$(BPF_CLANG) $(BPF_CFLAGS) -D__TARGET_ARCH_$(SRCARCH) -DBPFTUNE_NOBTF -O2 -target $(BPF_TARGET) \
++		-I../include -c $(patsubst %.nobtf.o,%.c,$(@)) \
++ 		-o $(@)
++	$(LLVM_STRIP) --strip-debug $(@)
+ else
+ GCC_BPF_FLAGS := -g -O2 \
+ 	$(BPF_CFLAGS) -D__TARGET_ARCH_$(SRCARCH) \
+-- 
+2.55.0
+