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Wed, 11 Dec 2024 12:18:38 +0000 (GMT) Message-ID: <710315f59b9378d76d226e209fee698f6bc11c06.camel@linux.ibm.com> Subject: Re: [PATCH 2/3] ima_setup.sh: Allow to load predefined policy From: Mimi Zohar To: Petr Vorel , ltp@lists.linux.it Cc: linux-integrity@vger.kernel.org, Roberto Sassu Date: Wed, 11 Dec 2024 07:18:38 -0500 In-Reply-To: <20241126173830.98960-3-pvorel@suse.cz> References: <20241126173830.98960-1-pvorel@suse.cz> <20241126173830.98960-3-pvorel@suse.cz> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.4 (3.52.4-2.fc40) Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: BfxQ6LX7SjTRq5f7ERZGtQXgi71bvrMj X-Proofpoint-ORIG-GUID: BfxQ6LX7SjTRq5f7ERZGtQXgi71bvrMj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 adultscore=0 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 mlxlogscore=999 mlxscore=0 priorityscore=1501 suspectscore=0 malwarescore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412110087 On Tue, 2024-11-26 at 18:38 +0100, Petr Vorel wrote: > environment variable LTP_IMA_LOAD_POLICY=3D1 tries to load example policy > if available. This should be used only if tooling running LTP tests > allows to reboot afterwards (because policy may be writable only once, > e.g. missing CONFIG_IMA_WRITE_POLICY=3Dy, or policies can influence each > other). Thanks, Petr. Allowing the policy to be updated only if permitted is a goo= d idea. Even with the LTP_IMA_LOAD_POLICY=3D1 environment variable, the poli= cy might not be loaded. For example, when secure boot is enabled and the kern= el is configured with CONFIG_IMA_ARCH_POLICY enabled, an "appraise func=3DPOLICY_= CHECK appraise_type=3Dimasig" rule is loaded, requiring the IMA policy itself to = be signed. On failure to load a policy, the ima_conditionals.sh and ima_policy.sh test= s say "TINFO: SELinux enabled in enforcing mode, this may affect test results". = We should stop blaming SELinux. :) thanks, Mimi