1 files changed, 55 insertions, 0 deletions
diff --git a/charms/trusty/ceilometer/charmhelpers/contrib/hardening/host/checks/limits.py b/charms/trusty/ceilometer/charmhelpers/contrib/hardening/host/checks/limits.py
new file mode 100644
index 0000000..8ce9dc2
--- /dev/null
+++ b/charms/trusty/ceilometer/charmhelpers/contrib/hardening/host/checks/limits.py
@@ -0,0 +1,55 @@
+# Copyright 2016 Canonical Limited.
+#
+# This file is part of charm-helpers.
+#
+# charm-helpers is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# charm-helpers is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with charm-helpers.  If not, see <http://www.gnu.org/licenses/>.
+
+from charmhelpers.contrib.hardening.audits.file import (
+    DirectoryPermissionAudit,
+    TemplatedFile,
+)
+from charmhelpers.contrib.hardening.host import TEMPLATES_DIR
+from charmhelpers.contrib.hardening import utils
+
+
+def get_audits():
+    """Get OS hardening security limits audits.
+
+    :returns:  dictionary of audits
+    """
+    audits = []
+    settings = utils.get_settings('os')
+
+    # Ensure that the /etc/security/limits.d directory is only writable
+    # by the root user, but others can execute and read.
+    audits.append(DirectoryPermissionAudit('/etc/security/limits.d',
+                                           user='root', group='root',
+                                           mode=0o755))
+
+    # If core dumps are not enabled, then don't allow core dumps to be
+    # created as they may contain sensitive information.
+    if not settings['security']['kernel_enable_core_dump']:
+        audits.append(TemplatedFile('/etc/security/limits.d/10.hardcore.conf',
+                                    SecurityLimitsContext(),
+                                    template_dir=TEMPLATES_DIR,
+                                    user='root', group='root', mode=0o0440))
+    return audits
+
+
+class SecurityLimitsContext(object):
+
+    def __call__(self):
+        settings = utils.get_settings('os')
+        ctxt = {'disable_core_dump':
+                not settings['security']['kernel_enable_core_dump']}
+        return ctxt