Files
bpfire/lfs/openssh
Peter Müller 9a7e4d8506 Switch checksums from MD5 to BLAKE2
Historically, the MD5 checksums in our LFS files serve as a protection
against broken downloads, or accidentally corrupted source files.

While the sources are nowadays downloaded via HTTPS, it make sense to
beef up integrity protection for them, since transparently intercepting
TLS is believed to be feasible for more powerful actors, and the state
of the public PKI ecosystem is clearly not helping.

Therefore, this patch switches from MD5 to BLAKE2, updating all LFS
files as well as make.sh to deal with this checksum algorithm. BLAKE2 is
notably faster (and more secure) than SHA2, so the performance penalty
introduced by this patch is negligible, if noticeable at all.

In preparation of this patch, the toolchain files currently used have
been supplied with BLAKE2 checksums as well on
https://source.ipfire.org/.

Cc: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Acked-by: Michael Tremer <michael.tremeripfire.org>
2022-04-02 14:19:25 +00:00

96 lines
3.7 KiB
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###############################################################################
# #
# IPFire.org - A linux based firewall #
# Copyright (C) 2007-2020 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 = 8.9p1
THISAPP = openssh-$(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 = 02934da7f7a2954141888e63e81e38fad4fb8558ddd1032de44f69684802c62771fdd7e9e470e0715059635999c8f9d2ab95f6351217e236573ead83a867f59b
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) && sed -i "s/lkrb5 -ldes/lkrb5/" configure
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/OpenSSH-8.2p1_glibc-2.31_clock_nanosleep_time64.patch
cd $(DIR_APP) && ./configure \
--prefix=/usr \
--sysconfdir=/etc/ssh \
--libexecdir=/usr/lib/openssh \
--with-md5-passwords \
--with-privsep-path=/var/empty \
--with-superuser-path=/sbin:/usr/sbin:/bin:/usr/bin
cd $(DIR_APP) && make $(MAKETUNING)
cd $(DIR_APP) && make install
# install custom OpenSSH server configuration
install -v -m 644 $(DIR_SRC)/config/ssh/sshd_config \
/etc/ssh/sshd_config
# install custom OpenSSH client configuration
install -v -m 644 $(DIR_SRC)/config/ssh/ssh_config \
/etc/ssh/ssh_config
@rm -rf $(DIR_APP)
@$(POSTBUILD)