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2019-03-19scripts/selinux: fix buildStephen Smalley1-1/+1
We need to add the object tree include directory to the include path for building mdp in order to pick up generated/autoconf.h. Otherwise, make O=/path/to/objtree breaks. Fixes: e37c1877ba5b ("scripts/selinux: modernize mdp") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <paul@paul-moore.com>
2019-03-18selinux: use kernel linux/socket.h for genheaders and mdpPaulo Alcantara3-2/+1
When compiling genheaders and mdp from a newer host kernel, the following error happens: In file included from scripts/selinux/genheaders/genheaders.c:18: ./security/selinux/include/classmap.h:238:2: error: #error New address family defined, please update secclass_map. #error New address family defined, please update secclass_map. ^~~~~ make[3]: *** [scripts/Makefile.host:107: scripts/selinux/genheaders/genheaders] Error 1 make[2]: *** [scripts/Makefile.build:599: scripts/selinux/genheaders] Error 2 make[1]: *** [scripts/Makefile.build:599: scripts/selinux] Error 2 make[1]: *** Waiting for unfinished jobs.... Instead of relying on the host definition, include linux/socket.h in classmap.h to have PF_MAX. Signed-off-by: Paulo Alcantara <paulo@paulo.ac> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> [PM: manually merge in mdp.c, subject line tweaks] Signed-off-by: Paul Moore <paul@paul-moore.com>
2019-03-18scripts/selinux: modernize mdpStephen Smalley2-63/+194
Derived in part from a patch by Dominick Grift. The MDP example no longer works on modern systems. Fix it. While we are at it, add MLS support and enable it. NB This still does not work on systems using dbus-daemon instead of dbus-broker because dbus-daemon does not yet gracefully handle unknown classes/permissions. This appears to be a deficiency in libselinux's selinux_set_mapping() interface and underlying implementation, which was never fully updated to deal with unknown classes/permissions unlike the kernel. The same problem also occurs with XSELinux. Programs that instead use selinux_check_access() like dbus-broker should not have this problem. Changes to mdp: Add support for devtmpfs, required by modern Linux distributions. Add MLS support, with sample sensitivities, categories, and constraints. Generate fs_use and genfscon rules based on kernel configuration. Update list of filesystem types for fs_use and genfscon rules. Use object_r for object contexts. Changes to install_policy.sh: Bail immediately on any errors. Provide more helpful error messages when unable to find userspace tools. Refuse to run if SELinux is already enabled. Unconditionally move aside /etc/selinux/config and create a new one. Build policy with -U allow so that userspace object managers do not break. Build policy with MLS enabled by default. Create seusers, failsafe_context, and default_contexts for use by pam_selinux / libselinux. Create x_contexts for the SELinux X extension. Create virtual_domain_context and virtual_image_context for libvirtd. Set to permissive mode rather than enforcing to permit initial autorelabel. Update the list of filesystem types to be relabeled. Write -F to /.autorelabel to cause a forced autorelabel on reboot. Drop broken attempt to relabel the /dev mountpoint directory. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Dominick Grift <dominick.grift@defensec.nl> Signed-off-by: Paul Moore <paul@paul-moore.com>
2019-03-17Linux 5.1-rc1Linus Torvalds1-2/+2
2019-03-17perf/x86/intel: Make dev_attr_allow_tsx_force_abort statickbuild test robot1-1/+1
Fixes: 400816f60c54 ("perf/x86/intel: Implement support for TSX Force Abort") Signed-off-by: kbuild test robot <lkp@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: kbuild-all@01.org Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20190313184243.GA10820@lkp-sb-ep06
2019-03-17kconfig: remove stale lxdialog/.gitignoreMasahiro Yamada1-4/+0
When this .gitignore was added, lxdialog was an independent hostprogs-y. Now that all objects in lxdialog/ are directly linked to mconf, the lxdialog is no longer generated. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: force all architectures except um to include mandatory-yMasahiro Yamada29-47/+18
Currently, every arch/*/include/uapi/asm/Kbuild explicitly includes the common Kbuild.asm file. Factor out the duplicated include directives to scripts/Makefile.asm-generic so that no architecture would opt out of the mandatory-y mechanism. um is not forced to include mandatory-y since it is a very exceptional case which does not support UAPI. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: warn redundant generic-yMasahiro Yamada12-13/+6
The generic-y is redundant under the following condition: - arch has its own implementation - the same header is added to generated-y - the same header is added to mandatory-y If a redundant generic-y is found, the warning like follows is displayed: scripts/Makefile.asm-generic:20: redundant generic-y found in arch/arm/include/asm/Kbuild: timex.h I fixed up arch Kbuild files found by this. Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17Revert "modsign: Abort modules_install when signing fails"Douglas Anderson1-1/+1
This reverts commit caf6fe91ddf62a96401e21e9b7a07227440f4185. The commit was fine but is no longer needed as of commit 3a2429e1faf4 ("kbuild: change if_changed_rule for multi-line recipe"). Let's go back to using ";" to be consistent. For some discussion, see: https://lkml.kernel.org/r/CAK7LNASde0Q9S5GKeQiWhArfER4S4wL1=R_FW8q0++_X3T5=hQ@mail.gmail.com Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: Make NOSTDINC_FLAGS a simply expanded variableDouglas Anderson1-1/+1
During a simple no-op (nothing changed) build I saw 39 invocations of the C compiler with the argument "-print-file-name=include". We don't need to call the C compiler 39 times for this--one time will suffice. Let's change NOSTDINC_FLAGS to a simply expanded variable to avoid this since there doesn't appear to be any reason it should be recursively expanded. On my build this shaved ~400 ms off my "no-op" build. Note that the recursive expansion seems to date back to the (really old) commit e8f5bdb02ce0 ("[PATCH] Makefile include path ordering"). It's a little unclear to me if the point of that patch was to switch the variable to be recursively expanded (which it did) or to avoid directly assigning to NOSTDINC_FLAGS (AKA to switch to +=) because someone else (out of tree?) was setting it. I presume later since if the only goal was to switch to recursive expansion the patch would have just removed the ":". Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: deb-pkg: avoid implicit effectsArseny Maslennikov1-1/+4
* The man page for dpkg-source(1) notes: > -b, --build directory [format-specific-parameters] > Build a source package (--build since dpkg 1.17.14). > <...> > > dpkg-source will build the source package with the first > format found in this ordered list: the format indicated > with the --format command line option, the format > indicated in debian/source/format, “1.0”. The fallback > to “1.0” is deprecated and will be removed at some point > in the future, you should always document the desired > source format in debian/source/format. See section > SOURCE PACKAGE FORMATS for an extensive description of > the various source package formats. Thus it would be more foolproof to explicitly use 1.0 (as we always did) than to rely on dpkg-source's defaults. * In a similar vein, debian/rules is not made executable by mkdebian, and dpkg-source warns about that but still silently fixes the file. Let's be explicit once again. Signed-off-by: Arseny Maslennikov <ar@cs.msu.ru> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>