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tcp-in-udp: add

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TCP-in-UDP is a lightweight TCP in UDP tunnel utilising eBPF.

Signed-off-by: Chester A. Unal <chester.a.unal@arinc9.com>
This commit is contained in:
Chester A. Unal
2026-02-19 12:48:17 +02:00
committed by Daniel Golle
parent b543052ae0
commit ea1ea71298
1 changed files with 48 additions and 0 deletions
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48
net/tcp-in-udp/Makefile Normal file
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# SPDX-License-Identifier: AGPL-3.0-or-later
# Copyright (C) 2025-2026 Chester A. Unal <chester.a.unal@arinc9.com>
include $(TOPDIR)/rules.mk
PKG_NAME:=tcp-in-udp
PKG_RELEASE:=1
PKG_LICENSE:=AGPL-3.0-or-later
PKG_MAINTAINER:=Chester A. Unal <chester.a.unal@arinc9.com>
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://github.com/multipath-tcp/tcp-in-udp.git
PKG_SOURCE_DATE:=2026-02-24
PKG_SOURCE_VERSION:=bf16ad0b1c43853abbcac2053241d28e2bb20d12
PKG_MIRROR_HASH:=9b5c1f97a6400de3d975366b4cfeceebf6b63eda202dcd51848978730855a878
PKG_BUILD_DEPENDS:=bpf-headers
include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/bpf.mk
define Package/tcp-in-udp
SECTION:=net
CATEGORY:=Network
TITLE:=Lightweight TCP in UDP tunnel using eBPF
DEPENDS:=+libbpf $(BPF_DEPENDS)
endef
# The CompileBPF definition uses -O2 for LLVM_OPT which causes failure to load
# the BPF programme. Use -O1 which works.
# $(call CompileBPF,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c,-DBPF_PRINTK_UNSUPPORTED)
define Build/Compile
$(CLANG) -g -target $(BPF_ARCH)-linux-gnu $(BPF_CFLAGS) -DBPF_PRINTK_UNSUPPORTED \
-c $(PKG_BUILD_DIR)/tcp_in_udp_tc.c -o $(patsubst %.c,%.bc,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c)
$(LLVM_OPT) -O1 -mtriple=$(BPF_TARGET) < $(patsubst %.c,%.bc,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c) > $(patsubst %.c,%.opt,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c)
$(LLVM_DIS) < $(patsubst %.c,%.opt,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c) > $(patsubst %.c,%.S,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c)
$(LLVM_LLC) -march=$(BPF_TARGET) -mcpu=v3 -filetype=obj -o $(patsubst %.c,%.o,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c) < $(patsubst %.c,%.S,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c)
$(CP) $(patsubst %.c,%.o,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c) $(patsubst %.c,%.debug.o,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c)
$(LLVM_STRIP) --strip-debug $(patsubst %.c,%.o,$(PKG_BUILD_DIR)/tcp_in_udp_tc.c)
endef
define Package/tcp-in-udp/install
$(INSTALL_DIR) $(1)/usr/lib/bpf
$(INSTALL_DATA) $(PKG_BUILD_DIR)/tcp_in_udp_tc.o $(1)/usr/lib/bpf
endef
$(eval $(call BuildPackage,tcp-in-udp))