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[108.15.23.247]) by smtp.gmail.com with ESMTPSA id i68sm7569449qkf.42.2019.03.24.11.44.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 24 Mar 2019 11:44:00 -0700 (PDT) Subject: Re: [PATCH 4/4] Allow ntpd to read unit files To: "Sugar, David" , "selinux-refpolicy@vger.kernel.org" References: <20190320002012.21220-1-dsugar@tresys.com> <20190320002012.21220-5-dsugar@tresys.com> From: Chris PeBenito Message-ID: <67d9f37e-3ecc-d11e-f5db-5f494ed62501@ieee.org> Date: Sun, 24 Mar 2019 14:36:48 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <20190320002012.21220-5-dsugar@tresys.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: selinux-refpolicy-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: selinux-refpolicy@vger.kernel.org On 3/19/19 8:20 PM, Sugar, David wrote: > type=AVC msg=audit(1553013917.359:9935): avc: denied { read } for pid=16326 comm="systemd-timedat" name="50-chronyd.list" dev="dm-1" ino=4870675 scontext=system_u:system_r:ntpd_t:s0 tcontext=system_u:object_r:ntpd_unit_t:s0 tclass=file permissive=1 > type=AVC msg=audit(1553013917.359:9935): avc: denied { open } for pid=16326 comm="systemd-timedat" path="/usr/lib/systemd/ntp-units.d/50-chronyd.list" dev="dm-1" ino=4870675 scontext=system_u:system_r:ntpd_t:s0 tcontext=system_u:object_r:ntpd_unit_t:s0 tclass=file permissive=1 > type=AVC msg=audit(1553013917.359:9936): avc: denied { getattr } for pid=16326 comm="systemd-timedat" path="/usr/lib/systemd/ntp-units.d/50-chronyd.list" dev="dm-1" ino=4870675 scontext=system_u:system_r:ntpd_t:s0 tcontext=system_u:object_r:ntpd_unit_t:s0 tclass=file permissive=1 > > type=AVC msg=audit(1553013821.622:9902): avc: denied { getattr } for pid=16281 comm="systemd-timedat" path="/usr/lib/systemd/ntp-units.d" dev="dm-1" ino=4700094 scontext=system_u:system_r:ntpd_t:s0 tcontext=system_u:object_r:systemd_unit_t:s0 tclass=dir permissive=1 > type=AVC msg=audit(1553013821.622:9903): avc: denied { read } for pid=16281 comm="systemd-timedat" name="ntp-units.d" dev="dm-1" ino=4700094 scontext=system_u:system_r:ntpd_t:s0 tcontext=system_u:object_r:systemd_unit_t:s0 tclass=dir permissive=1 > type=AVC msg=audit(1553013821.622:9903): avc: denied { open } for pid=16281 comm="systemd-timedat" path="/usr/lib/systemd/ntp-units.d" dev="dm-1" ino=4700094 scontext=system_u:system_r:ntpd_t:s0 tcontext=system_u:object_r:systemd_unit_t:s0 tclass=dir permissive=1 > > Signed-off-by: Dave Sugar > --- > policy/modules/services/ntp.te | 3 +++ > policy/modules/system/init.if | 10 ++++++++++ > 2 files changed, 13 insertions(+) > > diff --git a/policy/modules/services/ntp.te b/policy/modules/services/ntp.te > index eff38486..85747e76 100644 > --- a/policy/modules/services/ntp.te > +++ b/policy/modules/services/ntp.te > @@ -138,10 +138,13 @@ userdom_dontaudit_use_unpriv_user_fds(ntpd_t) > userdom_list_user_home_dirs(ntpd_t) > > ifdef(`init_systemd',` > + allow ntpd_t ntpd_unit_t:file read_file_perms; > + > dbus_system_bus_client(ntpd_t) > dbus_connect_system_bus(ntpd_t) > init_dbus_chat(ntpd_t) > init_get_system_status(ntpd_t) > + init_list_unit_dirs(ntpd_t) > # for /var/lib/systemd/timesync > init_read_var_lib_links(ntpd_t) > allow ntpd_t self:capability { fowner setpcap }; > diff --git a/policy/modules/system/init.if b/policy/modules/system/init.if > index 2a17910e..4f4d4d2c 100644 > --- a/policy/modules/system/init.if > +++ b/policy/modules/system/init.if > @@ -2960,6 +2960,16 @@ interface(`init_search_units',` > fs_search_tmpfs($1) > ') > > +interface(`init_list_unit_dirs',` > + gen_require(` > + type systemd_unit_t; > + ') > + > + allow $1 systemd_unit_t:dir list_dir_perms; > + > + init_search_units($1) > +') Missing documentation. -- Chris PeBenito