#!/usr/bin/make -f

# Uncomment this to turn on verbose mode.
# export DH_VERBOSE=1

include /usr/share/hardening-includes/hardening.make

# This has to be exported to make some magic below work.
export DH_OPTIONS

ifeq (,$(filter noopt,$(DEB_BUILD_OPTIONS)))
OPTFLAGS := -O2
else
OPTFLAGS := -O0
endif

ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
  RUN_TESTS := yes
else
  RUN_TESTS :=
endif

DEB_HOST_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)

ifeq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
  confflags += --build=$(DEB_HOST_GNU_TYPE)
  CC := gcc
else
  confflags += --build=$(DEB_BUILD_GNU_TYPE) --host=$(DEB_HOST_GNU_TYPE)
  CC := $(DEB_HOST_GNU_TYPE)-gcc
  RUN_TESTS :=
endif

DEB_HOST_ARCH_OS := $(shell dpkg-architecture -qDEB_HOST_ARCH_OS 2>/dev/null)
DEB_HOST_ARCH_CPU := $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU 2>/dev/null)

# Take account of old dpkg-architecture output.
ifeq ($(DEB_HOST_ARCH_OS),)
  DEB_HOST_ARCH_OS := $(subst -gnu,,$(shell dpkg-architecture -qDEB_HOST_GNU_SYSTEM))
  ifeq ($(DEB_HOST_ARCH_OS),gnu)
    DEB_HOST_ARCH_OS := hurd
  endif
endif
ifeq ($(DEB_HOST_ARCH_CPU),)
  DEB_HOST_ARCH_CPU := $(shell dpkg-architecture -qDEB_HOST_GNU_CPU)
  ifeq ($(DEB_HOST_ARCH_CPU),x86_64)
    DEB_HOST_ARCH_CPU := amd64
  endif
endif

ifneq (,$(findstring :$(DEB_HOST_ARCH_OS):,:linux:knetbsd:))
  ifneq (,$(findstring :$(DEB_HOST_ARCH_CPU):,:mips:mipsel:))
    # Apparently this is not implied by -fPIE, at least on the mipsen.
    PIC_CFLAGS := -fPIC
    PIC_LDFLAGS := -fPIC
  endif
endif

# Change the version string to include the Debian version
SSH_EXTRAVERSION := Debian-$(shell dpkg-parsechangelog | sed -n -e '/^Version:/s/Version: //p' | sed -e 's/[^-]*-//')

DISTRIBUTOR := $(shell lsb_release -is 2>/dev/null || echo Debian)
ifeq ($(DISTRIBUTOR),Ubuntu)
DEFAULT_PATH := /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games
else
DEFAULT_PATH := /usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games
endif
SUPERUSER_PATH := /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11

# Common path configuration.
confflags += --prefix=/usr --sysconfdir=/etc/ssh --libexecdir=/usr/lib/openssh --mandir=/usr/share/man

# Common build options.
confflags += --disable-strip
confflags += --with-mantype=doc
confflags += --with-4in6
confflags += --with-privsep-path=/var/run/sshd
confflags += --without-rand-helper

# The Hurd needs libcrypt for res_query et al.
ifeq ($(DEB_HOST_ARCH_OS),hurd)
confflags += --with-libs=-lcrypt
endif

# Everything above here is common to the deb and udeb builds.
confflags_udeb := $(confflags)

# Options specific to the deb build.
confflags += --with-tcp-wrappers
confflags += --with-pam
confflags += --with-libedit
confflags += --with-kerberos5=/usr
confflags += --with-ssl-engine
ifeq ($(DEB_HOST_ARCH_OS),linux)
confflags += --with-selinux
endif

# The deb build wants xauth; the udeb build doesn't.
confflags += --with-xauth=/usr/bin/xauth
confflags_udeb += --without-xauth

# Default paths. The udeb build has /usr/bin/X11 and /usr/games removed.
confflags += --with-default-path=$(DEFAULT_PATH) --with-superuser-path=$(SUPERUSER_PATH)
confflags_udeb += --with-default-path=/usr/local/bin:/usr/bin:/bin --with-superuser-path=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

# Compiler flags.
cflags := $(OPTFLAGS) $(PIC_CFLAGS) $(HARDENING_CFLAGS)
cflags += -DLOGIN_PROGRAM=\"/bin/login\" -DLOGIN_NO_ENDOPT
cflags += -DSSH_EXTRAVERSION=\"$(SSH_EXTRAVERSION)\"
cflags_udeb := -Os
cflags_udeb += -DSSH_EXTRAVERSION=\"$(SSH_EXTRAVERSION)\"
confflags += --with-cflags='$(cflags)'
confflags_udeb += --with-cflags='$(cflags_udeb)'

# Linker flags.
confflags += --with-ldflags='$(strip -Wl,--as-needed $(PIC_LDFLAGS) $(HARDENING_LDFLAGS))'
confflags_udeb += --with-ldflags='-Wl,--as-needed'

build: build-deb build-udeb

build-deb: build-deb-stamp
build-deb-stamp:
	dh_testdir
	mkdir -p build-deb
	cd build-deb && ../configure $(confflags)

	# Debian's /var/log/btmp has inappropriate permissions.
	perl -pi -e 's,.*#define USE_BTMP .*,/* #undef USE_BTMP */,' build-deb/config.h

	$(MAKE) -C build-deb -j 2 ASKPASS_PROGRAM='/usr/bin/ssh-askpass'
	$(MAKE) -C contrib gnome-ssh-askpass2 CC='$(CC) $(OPTFLAGS) -g -Wall -Wl,--as-needed'
ifeq ($(RUN_TESTS),yes)
	$(MAKE) -C debian/tests
endif

	touch build-deb-stamp

build-udeb: build-udeb-stamp
build-udeb-stamp:
	dh_testdir
	mkdir -p build-udeb
	cd build-udeb && ../configure $(confflags_udeb)
	# Debian's /var/log/btmp has inappropriate permissions.
	perl -pi -e 's,.*#define USE_BTMP .*,/* #undef USE_BTMP */,' build-udeb/config.h
	# Avoid libnsl linkage. Ugh.
	perl -pi -e 's/ +-lnsl//' build-udeb/config.status
	cd build-udeb && ./config.status
	$(MAKE) -C build-udeb -j 2 ASKPASS_PROGRAM='/usr/bin/ssh-askpass' ssh scp sftp sshd ssh-keygen
	touch build-udeb-stamp

clean:
	dh_testdir
	rm -rf build-deb build-udeb
ifeq ($(RUN_TESTS),yes)
	$(MAKE) -C debian/tests clean
endif
	$(MAKE) -C contrib clean
	(cat debian/copyright.head; iconv -f ISO-8859-1 -t UTF-8 LICENCE) \
		> debian/copyright
	dh_clean

install: DH_OPTIONS=-a
install: build
	dh_testdir
	dh_testroot
	dh_prep
	dh_installdirs

	$(MAKE) -C build-deb DESTDIR=`pwd`/debian/openssh-client install-nokeys

	rm -f debian/openssh-client/etc/ssh/sshd_config
	#Temporary hack: remove /usr/share/Ssh.bin, since we have no smartcard support anyway.
	rm -f debian/openssh-client/usr/share/Ssh.bin

	# Split off the server.
	mv debian/openssh-client/usr/sbin/sshd debian/openssh-server/usr/sbin/
	mv debian/openssh-client/usr/lib/openssh/sftp-server debian/openssh-server/usr/lib/openssh/
	mv debian/openssh-client/usr/share/man/man5/authorized_keys.5 debian/openssh-server/usr/share/man/man5/
	mv debian/openssh-client/usr/share/man/man5/sshd_config.5 debian/openssh-server/usr/share/man/man5/
	mv debian/openssh-client/usr/share/man/man8/sshd.8 debian/openssh-server/usr/share/man/man8/
	mv debian/openssh-client/usr/share/man/man8/sftp-server.8 debian/openssh-server/usr/share/man/man8/
	rmdir debian/openssh-client/usr/sbin debian/openssh-client/var/run/sshd

	install -m 755 contrib/ssh-copy-id debian/openssh-client/usr/bin/ssh-copy-id
	install -m 644 -c contrib/ssh-copy-id.1 debian/openssh-client/usr/share/man/man1/ssh-copy-id.1

	install -s -o root -g root -m 755 contrib/gnome-ssh-askpass2 debian/ssh-askpass-gnome/usr/lib/openssh/gnome-ssh-askpass
	install -m 644 debian/gnome-ssh-askpass.1 debian/ssh-askpass-gnome/usr/share/man/man1/gnome-ssh-askpass.1
	install -m 644 debian/ssh-askpass-gnome.png debian/ssh-askpass-gnome/usr/share/pixmaps/ssh-askpass-gnome.png

	install -m 755 debian/ssh-argv0 debian/openssh-client/usr/bin/ssh-argv0
	install -m 644 debian/ssh-argv0.1 debian/openssh-client/usr/share/man/man1/ssh-argv0.1

	install -o root -g root debian/openssh-server.init debian/openssh-server/etc/init.d/ssh
	install -o root -g root -m 644 debian/openssh-server.default debian/openssh-server/etc/default/ssh
	install -o root -g root debian/openssh-server.if-up debian/openssh-server/etc/network/if-up.d/openssh-server
	install -o root -g root -m 644 debian/openssh-server.ufw.profile debian/openssh-server/etc/ufw/applications.d/openssh-server

	install -m 755 build-udeb/ssh debian/openssh-client-udeb/usr/bin/ssh
	install -m 755 build-udeb/scp debian/openssh-client-udeb/usr/bin/scp
	install -m 755 build-udeb/sftp debian/openssh-client-udeb/usr/bin/sftp
	install -m 755 build-udeb/sshd debian/openssh-server-udeb/usr/sbin/sshd
	install -m 755 build-udeb/ssh-keygen debian/openssh-server-udeb/usr/bin/ssh-keygen

	# Remove version control tags to avoid unnecessary conffile
	# resolution steps for administrators.
	sed -i '/\$$OpenBSD:/d' \
		debian/openssh-client/etc/ssh/moduli \
		debian/openssh-client/etc/ssh/ssh_config

# Build architecture-independent files here.
binary-indep: binary-ssh binary-ssh-krb5

# Build architecture-dependent files here.
binary-arch: binary-openssh-client binary-openssh-server
binary-arch: binary-ssh-askpass-gnome
binary-arch: binary-openssh-client-udeb binary-openssh-server-udeb

binary-openssh-client: DH_OPTIONS=-popenssh-client
binary-openssh-client: build install
	dh_testdir
	dh_testroot
	dh_installdebconf
	dh_installdocs
	dh_installchangelogs
	dh_lintian
	dh_strip
	dh_compress
	dh_fixperms
	chmod u+s debian/openssh-client/usr/lib/openssh/ssh-keysign
	dh_installdeb
	test ! -e debian/ssh/etc/ssh/ssh_prng_cmds \
	  || echo "/etc/ssh/ssh_prng_cmds" >> debian/openssh-client/DEBIAN/conffiles
	perl -i debian/substitute-conffile.pl \
		ETC_SSH_MODULI debian/openssh-client/etc/ssh/moduli \
		ETC_SSH_SSH_CONFIG debian/openssh-client/etc/ssh/ssh_config \
		debian/openssh-client/DEBIAN/preinst
	dh_shlibdeps
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary-openssh-server: DH_OPTIONS=-popenssh-server
binary-openssh-server: build install
	dh_testdir
	dh_testroot
	dh_installdebconf
	dh_installdocs
	mv debian/openssh-server/usr/share/doc/openssh-server debian/openssh-server/usr/share/doc/openssh-client
	rm -f debian/openssh-server/usr/share/doc/openssh-client/copyright
	dh_installpam --name sshd
	dh_lintian
	dh_link
	dh_installexamples
	dh_strip
	dh_compress
	dh_fixperms
	dh_installdeb
	# Yes, ETC_PAM_D_SSH is meant to be spelled that way, to match the
	# old configuration file name we need to transfer.
	perl -i debian/substitute-conffile.pl \
		ETC_DEFAULT_SSH debian/openssh-server/etc/default/ssh \
		ETC_INIT_D_SSH debian/openssh-server/etc/init.d/ssh \
		ETC_PAM_D_SSH debian/openssh-server/etc/pam.d/sshd \
		debian/openssh-server/DEBIAN/preinst
	dh_shlibdeps
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary-ssh: DH_OPTIONS=-pssh
binary-ssh: build install
	dh_testdir
	dh_testroot
	dh_installdirs
	dh_installdocs
	mv debian/ssh/usr/share/doc/ssh debian/ssh/usr/share/doc/openssh-client
	rm -f debian/ssh/usr/share/doc/openssh-client/copyright
	dh_lintian
	dh_link
	dh_compress
	dh_fixperms
	dh_installdeb
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary-ssh-krb5: DH_OPTIONS=-pssh-krb5
binary-ssh-krb5: build install
	dh_testdir
	dh_testroot
	dh_installdocs
	dh_installchangelogs
	dh_link
	dh_compress
	dh_fixperms
	dh_installdeb
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary-ssh-askpass-gnome: DH_OPTIONS=-pssh-askpass-gnome
binary-ssh-askpass-gnome: build install
	dh_testdir
	dh_testroot
	dh_installdocs
	dh_installexamples
	dh_installchangelogs
	dh_strip
	dh_compress
	dh_fixperms
	dh_installdeb
	dh_shlibdeps
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary-openssh-client-udeb: DH_OPTIONS=-popenssh-client-udeb
binary-openssh-client-udeb: build install
	dh_testdir
	dh_testroot
	dh_strip
	dh_compress
	dh_fixperms
	dh_installdeb
	dh_shlibdeps
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary-openssh-server-udeb: DH_OPTIONS=-popenssh-server-udeb
binary-openssh-server-udeb: build install
	dh_testdir
	dh_testroot
	dh_strip
	dh_compress
	dh_fixperms
	dh_installdeb
	dh_shlibdeps
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary: binary-indep binary-arch

debian/faq.html:
	wget -O - http://www.openssh.org/faq.html | \
		sed 's,\(href="\)\(txt/\|[^":]*\.html\),\1http://www.openssh.org/\2,g' \
		> debian/faq.html

# You only need to run this immediately after checking out the package from
# revision control.
quilt-setup:
	[ ! -d .pc ]
	set -e; for patch in $$(quilt series | tac); do \
		patch -p1 -R --no-backup-if-mismatch <"debian/patches/$$patch"; \
	done
	quilt push -a

.PHONY: build clean binary-indep binary-arch binary install
.PHONY: build-deb build-udeb
.PHONY: binary-openssh-client binary-openssh-server binary-ssh
.PHONY: binary-ssh-krb5 binary-ssh-askpass-gnome
.PHONY: binary-openssh-client-udeb binary-openssh-server-udeb
.PHONY: quilt-setup