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From 2adb5d540e9344149ae2591811ad34928775e6fd Mon Sep 17 00:00:00 2001
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From: Atin Mukherjee <amukherj@redhat.com>
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Date: Wed, 3 Jun 2015 11:09:21 +0530
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Subject: [PATCH 09/52] build: introduce security hardening flags in gluster
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This patch introduces two of the security hardening compiler flags RELRO & PIE
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in gluster codebase. Using _hardened_build as 1 doesn't guarantee the existance
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of these flags in the compilation as different versions of RHEL have different
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redhat-rpm-config macro. So the idea is to export these flags at spec file
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level.
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Label: DOWNSTREAM ONLY
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Change-Id: I0a1a56d0a8f54f110d306ba5e55e39b1b073dc84
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Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/49780
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Reviewed-by: Balamurugan Arumugam <barumuga@redhat.com>
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Tested-by: Balamurugan Arumugam <barumuga@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/60137
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Tested-by: Milind Changire <mchangir@redhat.com>
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---
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glusterfs.spec.in | 19 +++++++++++++++++++
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1 file changed, 19 insertions(+)
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diff --git a/glusterfs.spec.in b/glusterfs.spec.in
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index eb04491..8a31a98 100644
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--- a/glusterfs.spec.in
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+++ b/glusterfs.spec.in
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@@ -736,6 +736,25 @@ done
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%build
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+# In RHEL7 few hardening flags are available by default, however the RELRO
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+# default behaviour is partial, convert to full
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+%if ( 0%{?rhel} && 0%{?rhel} >= 7 )
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+LDFLAGS="$RPM_LD_FLAGS -Wl,-z,relro,-z,now"
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+export LDFLAGS
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+%else
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+%if ( 0%{?rhel} && 0%{?rhel} == 6 )
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+CFLAGS="$RPM_OPT_FLAGS -fPIE -DPIE"
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+LDFLAGS="$RPM_LD_FLAGS -pie -Wl,-z,relro,-z,now"
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+%else
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+#It appears that with gcc-4.1.2 in RHEL5 there is an issue using both -fPIC and
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+ # -fPIE that makes -z relro not work; -fPIE seems to undo what -fPIC does
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+CFLAGS="$CFLAGS $RPM_OPT_FLAGS"
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+LDFLAGS="$RPM_LD_FLAGS -Wl,-z,relro,-z,now"
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+%endif
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+export CFLAGS
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+export LDFLAGS
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+%endif
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+
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./autogen.sh && %configure \
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%{?_with_asan} \
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%{?_with_cmocka} \
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--
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1.8.3.1
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