On Tue, 2020-12-08 at 21:28 +0530, Ashish Mishra wrote: > Hi Chris , > > Continuing on the inputs Richard shared , I was able to zero down to > the problem. > To recreate , step can be directly tested by command mentioned in > step-c > > a) I am having custom-rootfs under which I am trying to get the > refpolicy installed. > > b) By using make load DESTDIR=/tmp/custom-rootfs , the setup reaches > to state where > # semodule -s refpolicy -i NAME-OF-MODULE is triggered for every > module under /tmp/custom-rootfs/usr/share/selinux/refpolicy > ==> This semodule behavior is causing the problem. > > c) By default semodule install the file under /etc/selinux of HOST > system rather than /tmp/custom-rootfs/etc/selinux > This behaviour can be recreated / verified by : > # semodule -s selinux-store-name -i sample.pp > This instruction creates an entry of selinux-store-name and > creates policy.32 file there . > ==> Instead , here i wanted the file to be created under > /tmp/custom-rootfs/etc/selinux & not /etc/selinux > > d) Currently trying to look at the file from where this instruction > is > executed & then check if > somehow semodule can be made to use /tmp/custom- > rootfs/etc/selinux > over default /etc/selinux > > Thanks for sharing the info w.r.t your use case , will look at them . > They can help me to understand the process in a better way. > > Please feel free to revert if any further details are required or if > i > am missing any aspect . I've been AWOL for a few days so just picking up on this query. I can now see the problem as described. If you generate a monolithic policy (MONOLITHIC=y) using sequence below it all works. However if you build a modular policy (MONOLITHIC=n), then semodule will install the final binary policy in /etc/selinux/refpolicy/policy regardless of DESTDIR. I guess semodule should obey orders?? export DESTDIR=/tmp/custom-embedded-rootfs mkdir refpol cd refpol git clone https://github.com/SELinuxProject/refpolicy.git Edit build.conf file to requirements (e.g. NAME = refpolicy etc.) make install-src cd /tmp/custom-embedded-rootfs/etc/selinux/refpolicy/src/policy make conf make load > > Thanks , > Ashish > > > > > > > > > > > > > > > > > > On Tue, Dec 8, 2020 at 9:06 PM Chris PeBenito <pebenito@xxxxxxxx> > wrote: > > > > (SELinux main mail list to BCC since this is a refpolicy question.) > > > > On 12/7/20 8:26 AM, Ashish Mishra wrote: > > > 4) Further debugging I can confirm that the final binary > > > (policy.31) > > > seems to be > > > using HARD-CODDED location of /etc/selinux instead of what > > > is > > > being passed as DESTDIR. > > > The policy.31 is created not at custom-embedded-rootfs > > > location. > > > > > > Due to this : > > > - policy.31 is created in > > > /etc/selinux/refpolicy/policy/policy.31 > > > instead of what i was expecting at > > > /tmp/custom-embedded- > > > rootfs/etc/selinux/refpolicy/policy/policy.31 > > > as DESTDIR=${ROOT} and i do get *.pp at the expected > > > location of /tmp/custom-embedded- > > > rootfs/etc/selinux/refpolicy/src/policy > > > ${MAKE} -C > > > ${ROOT}/etc/selinux/${PKG}/src/policy load > > > DESTDIR=${ROOT} > > > > > > I can't reproduce your issue. I use monolithic policy regularly in > > the way > > you're using it. > > > > Here's the Makefile variables: > > > > From Makefile: > > topdir := $(DESTDIR)/etc/selinux > > installdir := $(topdir)/$(strip $(NAME)) > > policypath := $(installdir)/policy > > > > From Rules.monolithic: > > loadpath = $(policypath)/$(notdir $(polver)) > > > > $(notdir $(polver)) is "policy.31" and NAME is what you have in > > build.conf, e.g. > > "refopolicy". > > > > > > Then the install target for monolithic looks like this (with > > "echo"s removed): > > > > $(loadpath): $(policy_conf) > > @$(INSTALL) -d -m 0755 $(@D) > > $(verbose) $(CHECKPOLICY) -U $(UNK_PERMS) $^ -o $@ > > > > -- > > Chris PeBenito
