From 21deafba85b21aa76ccd464c620dfa45085fc90f Mon Sep 17 00:00:00 2001 From: Lokesh Mandvekar Date: Tue, 9 Feb 2021 15:46:11 -0500 Subject: hardening flags for fedora rpmbuilds This commit sets the CGO_CFLAGS variable for hardening the Fedora rpm binaries. The flags used are the same as those in the official Fedora rpms. Setting the flags in upstream spec would provide early warnings for flag adjustments or other hardening issues. Signed-off-by: Lokesh Mandvekar --- contrib/spec/podman.spec.in | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'contrib') diff --git a/contrib/spec/podman.spec.in b/contrib/spec/podman.spec.in index db79ebede..662234f71 100644 --- a/contrib/spec/podman.spec.in +++ b/contrib/spec/podman.spec.in @@ -380,6 +380,29 @@ tar zxf %{SOURCE1} %build mkdir _build pushd _build + +# These flags should work for all rpm distros and arches +export CGO_CFLAGS="-O2 -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -ffat-lto-objects -fexceptions -fasynchronous-unwind-tables -fstack-protector-strong -fstack-clash-protection -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" + +%if 0%{?fedora} || 0%{?rhel} +# This flag is only present on RH-family distros +export CGO_CFLAGS+=" -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1" +%endif + +%ifnarch %{ix86} +# Build fails on i686 with this flag +export CGO_CFLAGS+=" -D_FILE_OFFSET_BITS=64" +%endif + +%ifarch x86_64 +# Builds only on x86_64 with this flag +export CGO_CFLAGS+=" -m64 -mtune=generic" +%if 0%{?fedora} || 0%{?rhel} >= 8 +# Build fails on rhel7 and non-86_64 with this flag +export CGO_CFLAGS+=" -fcf-protection" +%endif +%endif + mkdir -p src/%{provider}.%{provider_tld}/%{project} ln -s ../../../../ src/%{import_path} popd -- cgit v1.2.3-54-g00ecf