On 1/13/20 1:28 PM, Sugar, David wrote:
auditd can halt the system for several reasons based on configuration.
These mostly revovle around audit partition full issues. I am seeing
the following denials when attempting to halt the system.
Jan 12 03:38:48 localhost audispd: node=localhost type=USER_AVC msg=audit(1578800328.122:1943): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='avc: denied { start } for auid=n/a uid=0 gid=0 path="/usr/lib/systemd/system/poweroff.target" cmdline="/sbin/init 0" scontext=system_u:system_r:auditd_t:s0 tcontext=system_u:object_r:power_unit_t:s0 tclass=service exe="/usr/lib/systemd/systemd" sauid=0 hostname=? addr=? terminal=?'
Jan 12 03:38:48 localhost audispd: node=localhost type=USER_AVC msg=audit(1578800328.147:1944): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='avc: denied { status } for auid=n/a uid=0 gid=0 path="/usr/lib/systemd/system/poweroff.target" cmdline="/sbin/init 0" scontext=system_u:system_r:auditd_t:s0 tcontext=system_u:object_r:power_unit_t:s0 tclass=service exe="/usr/lib/systemd/systemd" sauid=0 hostname=? addr=? terminal=?'
Jan 12 04:44:54 localhost audispd: node=localhost type=AVC msg=audit(1578804294.103:1923): avc: denied { getattr } for pid=6936 comm="systemctl" path="/run/systemd/system" dev="tmpfs" ino=45 scontext=system_u:system_r:auditd_t:s0 tcontext=system_u:object_r:systemd_unit_t:s0 tclass=dir permissive=1
Signed-off-by: Dave Sugar <dsugar@xxxxxxxxxx>
---
policy/modules/system/logging.te | 6 ++++++
policy/modules/system/systemd.if | 20 ++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/policy/modules/system/logging.te b/policy/modules/system/logging.te
index 73ca3042..69349af0 100644
--- a/policy/modules/system/logging.te
+++ b/policy/modules/system/logging.te
@@ -224,6 +224,12 @@ ifdef(`distro_ubuntu',`
')
')
+ifdef(`init_systemd',`
I think in this case an optional would be sufficient due to the
systemd_* interface use.
+ init_list_unit_dirs(auditd_t)
+ systemd_start_power_units(auditd_t)
+ systemd_status_power_units(auditd_t)
+')
+
optional_policy(`
mta_send_mail(auditd_t)
')
diff --git a/policy/modules/system/systemd.if b/policy/modules/system/systemd.if
index 0fd37fe8..2e9098a2 100644
--- a/policy/modules/system/systemd.if
+++ b/policy/modules/system/systemd.if
@@ -773,6 +773,26 @@ interface(`systemd_start_power_units',`
allow $1 power_unit_t:service start;
')
+########################################
+## <summary>
+## Get the system status information about power units
+## </summary>
+## <param name="domain">
+## <summary>
+## Domain allowed access.
+## </summary>
+## </param>
+#
+interface(`systemd_status_power_units',`
+ gen_require(`
+ type power_unit_t;
+ class service status;
+ ')
+
+ allow $1 power_unit_t:service status;
+')
+
+
########################################
## <summary>
## Make the specified type usable for
--
Chris PeBenito
