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tundra

0.2.0
0.5.0 0.4.1 0.4.0 0.3.2 0.3.1 0.3.0 0.2.1 0.2.0 0.1.9 0.1.3

TUN device support for Elixir

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tundra c_src server Makefile
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c_src/server/Makefile 

CC = gcc

CFLAGS = -Wall -Wextra -Werror -Wfatal-errors -O2 -std=c11 -pedantic

TARGET = tundra_server

TEST_CLIENT = test_client

SRCDIR = src



# Package metadata

VERSION ?= 0.1.0

PACKAGE_NAME = tundra-server

ARCH := $(shell uname -m)

ifeq ($(ARCH),x86_64)

    DEB_ARCH = amd64

endif

ifeq ($(ARCH),aarch64)

    DEB_ARCH = arm64

endif

ifeq ($(ARCH),arm64)

    DEB_ARCH = arm64

endif



# Package directories

PKG_DIR = pkg

DEB_DIR = $(PKG_DIR)/deb

DEB_ROOT = $(DEB_DIR)/$(PACKAGE_NAME)_$(VERSION)_$(DEB_ARCH)

OSX_DIR = $(PKG_DIR)/osx

OSX_ROOT = $(OSX_DIR)/root

SRCS = $(SRCDIR)/main.c $(SRCDIR)/protocol.c



# Platform-specific sources

UNAME_S := $(shell uname -s)

ifeq ($(UNAME_S),Linux)

    SRCS += $(SRCDIR)/tun_linux.c

endif

ifeq ($(UNAME_S),Darwin)

    SRCS += $(SRCDIR)/tun_darwin.c

endif



OBJS = $(SRCS:.c=.o)



.PHONY: all clean install test deb pkg pkg-clean



all: $(TARGET)



$(TARGET): $(OBJS)

	$(CC) $(CFLAGS) -o $@ $^



$(TEST_CLIENT): test_client.c $(SRCDIR)/protocol.c

	$(CC) $(CFLAGS) -o $@ $^



%.o: %.c

	$(CC) $(CFLAGS) -c $< -o $@



test: $(TEST_CLIENT)

	@echo "Build the test client. Run server with: sudo ./$(TARGET)"

	@echo "Then in another terminal: ./$(TEST_CLIENT)"



clean:

	rm -f $(TARGET) $(TEST_CLIENT) $(OBJS)



install: $(TARGET)

	install -m 755 $(TARGET) /usr/local/bin/



# Clean package artifacts

pkg-clean:

	rm -rf $(PKG_DIR)



# Build Debian package

deb: $(TARGET)

	@echo "Building Debian package..."

	rm -rf $(DEB_ROOT)

	mkdir -p $(DEB_ROOT)/usr/local/bin

	mkdir -p $(DEB_ROOT)/lib/systemd/system

	mkdir -p $(DEB_ROOT)/DEBIAN

	cp $(TARGET) $(DEB_ROOT)/usr/local/bin/

	chmod 755 $(DEB_ROOT)/usr/local/bin/$(TARGET)

	@echo "Package: $(PACKAGE_NAME)" > $(DEB_ROOT)/DEBIAN/control

	@echo "Version: $(VERSION)" >> $(DEB_ROOT)/DEBIAN/control

	@echo "Section: net" >> $(DEB_ROOT)/DEBIAN/control

	@echo "Priority: optional" >> $(DEB_ROOT)/DEBIAN/control

	@echo "Architecture: $(DEB_ARCH)" >> $(DEB_ROOT)/DEBIAN/control

	@echo "Maintainer: Tundra Maintainers" >> $(DEB_ROOT)/DEBIAN/control

	@echo "Description: Tundra VPN server" >> $(DEB_ROOT)/DEBIAN/control

	@echo " Privileged daemon for TUN device creation and management." >> $(DEB_ROOT)/DEBIAN/control

	@echo "[Unit]" > $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "Description=Tundra Server" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "After=network.target" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "[Service]" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "Type=simple" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "ExecStart=/usr/local/bin/$(TARGET)" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "Restart=on-failure" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "[Install]" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@echo "WantedBy=multi-user.target" >> $(DEB_ROOT)/lib/systemd/system/tundra-server.service

	@# postinst - enable and start service after install

	@echo "#!/bin/sh" > $(DEB_ROOT)/DEBIAN/postinst

	@echo "set -e" >> $(DEB_ROOT)/DEBIAN/postinst

	@echo "systemctl daemon-reload" >> $(DEB_ROOT)/DEBIAN/postinst

	@echo "systemctl enable tundra-server.service" >> $(DEB_ROOT)/DEBIAN/postinst

	@echo "systemctl start tundra-server.service" >> $(DEB_ROOT)/DEBIAN/postinst

	@chmod 755 $(DEB_ROOT)/DEBIAN/postinst

	@# prerm - stop service before removal

	@echo "#!/bin/sh" > $(DEB_ROOT)/DEBIAN/prerm

	@echo "set -e" >> $(DEB_ROOT)/DEBIAN/prerm

	@echo "systemctl stop tundra-server.service || true" >> $(DEB_ROOT)/DEBIAN/prerm

	@echo "systemctl disable tundra-server.service || true" >> $(DEB_ROOT)/DEBIAN/prerm

	@chmod 755 $(DEB_ROOT)/DEBIAN/prerm

	@# postrm - reload systemd after removal

	@echo "#!/bin/sh" > $(DEB_ROOT)/DEBIAN/postrm

	@echo "set -e" >> $(DEB_ROOT)/DEBIAN/postrm

	@echo "systemctl daemon-reload" >> $(DEB_ROOT)/DEBIAN/postrm

	@chmod 755 $(DEB_ROOT)/DEBIAN/postrm

	dpkg-deb --build --root-owner-group $(DEB_ROOT)

	@echo "Package created: $(DEB_ROOT).deb"



# Build macOS package

LAUNCHD_LABEL = net.ausimian.tundra.server

pkg: $(TARGET)

	@echo "Building macOS package..."

	rm -rf $(OSX_ROOT)

	mkdir -p $(OSX_ROOT)/usr/local/bin

	mkdir -p $(OSX_ROOT)/Library/LaunchDaemons

	mkdir -p $(OSX_DIR)/scripts

	cp $(TARGET) $(OSX_ROOT)/usr/local/bin/

	chmod 755 $(OSX_ROOT)/usr/local/bin/$(TARGET)

	@# Create uninstall script

	@echo '#!/bin/bash' > $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'set -e' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'if [ "$$(id -u)" -ne 0 ]; then echo "Must run as root"; exit 1; fi' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'echo "Stopping $(LAUNCHD_LABEL)..."' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'launchctl bootout system/$(LAUNCHD_LABEL) 2>/dev/null || true' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'echo "Removing files..."' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'rm -f /Library/LaunchDaemons/$(LAUNCHD_LABEL).plist' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'rm -f /usr/local/bin/$(TARGET)' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'rm -f /var/log/tundra-server.log' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'rm -f /usr/local/bin/uninstall-tundra-server' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'pkgutil --forget $(LAUNCHD_LABEL) >/dev/null 2>&1 || true' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@echo 'echo "Tundra server uninstalled."' >> $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	chmod 755 $(OSX_ROOT)/usr/local/bin/uninstall-tundra-server

	@# Create LaunchDaemon plist

	@echo '<?xml version="1.0" encoding="UTF-8"?>' > $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '<plist version="1.0">' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '<dict>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <key>Label</key>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <string>$(LAUNCHD_LABEL)</string>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <key>ProgramArguments</key>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <array>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '        <string>/usr/local/bin/$(TARGET)</string>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    </array>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <key>RunAtLoad</key>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <true/>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <key>KeepAlive</key>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <true/>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <key>StandardErrorPath</key>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <string>/var/log/tundra-server.log</string>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <key>StandardOutPath</key>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '    <string>/var/log/tundra-server.log</string>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '</dict>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@echo '</plist>' >> $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	chmod 644 $(OSX_ROOT)/Library/LaunchDaemons/$(LAUNCHD_LABEL).plist

	@# preinstall - unload existing daemon before upgrade

	@echo '#!/bin/bash' > $(OSX_DIR)/scripts/preinstall

	@echo 'launchctl bootout system/$(LAUNCHD_LABEL) 2>/dev/null || true' >> $(OSX_DIR)/scripts/preinstall

	@echo 'exit 0' >> $(OSX_DIR)/scripts/preinstall

	chmod 755 $(OSX_DIR)/scripts/preinstall

	@# postinstall - load the daemon

	@echo '#!/bin/bash' > $(OSX_DIR)/scripts/postinstall

	@echo 'launchctl bootstrap system /Library/LaunchDaemons/$(LAUNCHD_LABEL).plist' >> $(OSX_DIR)/scripts/postinstall

	@echo 'exit 0' >> $(OSX_DIR)/scripts/postinstall

	chmod 755 $(OSX_DIR)/scripts/postinstall

	pkgbuild \

		--root $(OSX_ROOT) \

		--identifier $(LAUNCHD_LABEL) \

		--version $(VERSION) \

		--scripts $(OSX_DIR)/scripts \

		--install-location / \

		$(PKG_DIR)/$(PACKAGE_NAME)-$(VERSION).pkg

	@echo "Package created: $(PKG_DIR)/$(PACKAGE_NAME)-$(VERSION).pkg"

	@echo "To uninstall: sudo uninstall-tundra-server"