From: Dave Jiang <dave.jiang@intel.com>
To: linux-cxl@vger.kernel.org
Cc: nvdimm@lists.linux.dev, dan.j.williams@intel.com,
bwidawsk@kernel.org, ira.weiny@intel.com,
vishal.l.verma@intel.com, alison.schofield@intel.com,
dave@stgolabs.net, Jonathan.Cameron@huawei.com
Subject: [PATCH v2 13/19] tools/testing/cxl: Add "passphrase secure erase" opcode support
Date: Wed, 21 Sep 2022 08:32:46 -0700 [thread overview]
Message-ID: <166377436599.430546.9691226328917294997.stgit@djiang5-desk3.ch.intel.com> (raw)
In-Reply-To: <166377414787.430546.3863229455285366312.stgit@djiang5-desk3.ch.intel.com>
Add support to emulate a CXL mem device support the "passphrase secure
erase" operation.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
tools/testing/cxl/test/mem.c | 56 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index 840378d239bf..a0a58156c15a 100644
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -356,6 +356,59 @@ static int mock_unlock_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd
return 0;
}
+static int mock_passphrase_erase(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
+{
+ struct cxl_mock_mem_pdata *mdata = dev_get_platdata(cxlds->dev);
+ struct cxl_pass_erase *erase;
+
+ if (cmd->size_in != sizeof(*erase))
+ return -EINVAL;
+
+ if (cmd->size_out != 0)
+ return -EINVAL;
+
+ if (mdata->security_state & CXL_PMEM_SEC_STATE_FROZEN) {
+ cmd->return_code = CXL_MBOX_CMD_RC_SECURITY;
+ return -ENXIO;
+ }
+
+ if (mdata->security_state & CXL_PMEM_SEC_STATE_USER_PLIMIT) {
+ cmd->return_code = CXL_MBOX_CMD_RC_SECURITY;
+ return -ENXIO;
+ }
+
+ erase = cmd->payload_in;
+ if (erase->type == CXL_PMEM_SEC_PASS_MASTER &&
+ mdata->security_state & CXL_PMEM_SEC_STATE_MASTER_PASS_SET &&
+ memcmp(mdata->master_pass, erase->pass, NVDIMM_PASSPHRASE_LEN)) {
+ if (++mdata->master_limit == PASS_TRY_LIMIT)
+ mdata->security_state |= CXL_PMEM_SEC_STATE_MASTER_PLIMIT;
+ cmd->return_code = CXL_MBOX_CMD_RC_PASSPHRASE;
+ return -ENXIO;
+ }
+
+ if (erase->type == CXL_PMEM_SEC_PASS_USER &&
+ mdata->security_state & CXL_PMEM_SEC_STATE_USER_PASS_SET &&
+ memcmp(mdata->user_pass, erase->pass, NVDIMM_PASSPHRASE_LEN)) {
+ if (++mdata->user_limit == PASS_TRY_LIMIT)
+ mdata->security_state |= CXL_PMEM_SEC_STATE_USER_PLIMIT;
+ cmd->return_code = CXL_MBOX_CMD_RC_PASSPHRASE;
+ return -ENXIO;
+ }
+
+ if (erase->type == CXL_PMEM_SEC_PASS_USER) {
+ mdata->security_state &= ~CXL_PMEM_SEC_STATE_USER_PASS_SET;
+ mdata->user_limit = 0;
+ memset(mdata->user_pass, 0, NVDIMM_PASSPHRASE_LEN);
+ } else if (erase->type == CXL_PMEM_SEC_PASS_MASTER) {
+ mdata->master_limit = 0;
+ }
+
+ mdata->security_state &= ~CXL_PMEM_SEC_STATE_LOCKED;
+
+ return 0;
+}
+
static int mock_get_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
{
struct cxl_mbox_get_lsa *get_lsa = cmd->payload_in;
@@ -464,6 +517,9 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *
case CXL_MBOX_OP_UNLOCK:
rc = mock_unlock_security(cxlds, cmd);
break;
+ case CXL_MBOX_OP_PASSPHRASE_ERASE:
+ rc = mock_passphrase_erase(cxlds, cmd);
+ break;
default:
break;
}
next prev parent reply other threads:[~2022-09-21 15:32 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-21 15:31 [PATCH v2 00/19] Introduce security commands for CXL pmem device Dave Jiang
2022-09-21 15:31 ` [PATCH v2 01/19] memregion: Add cpu_cache_invalidate_memregion() interface Dave Jiang
2022-10-13 0:14 ` [PATCH v3] " Davidlohr Bueso
2022-09-21 15:31 ` [PATCH v2 02/19] cxl/pmem: Introduce nvdimm_security_ops with ->get_flags() operation Dave Jiang
2022-09-21 21:07 ` Davidlohr Bueso
2022-09-21 15:31 ` [PATCH v2 03/19] tools/testing/cxl: Add "Get Security State" opcode support Dave Jiang
2022-11-04 12:28 ` Jonathan Cameron
2022-09-21 15:31 ` [PATCH v2 04/19] cxl/pmem: Add "Set Passphrase" security command support Dave Jiang
2022-09-21 20:06 ` Davidlohr Bueso
2022-09-21 15:31 ` [PATCH v2 05/19] tools/testing/cxl: Add "Set Passphrase" opcode support Dave Jiang
2022-11-04 13:56 ` Jonathan Cameron
2022-09-21 15:32 ` [PATCH v2 06/19] cxl/pmem: Add Disable Passphrase security command support Dave Jiang
2022-09-21 20:09 ` Davidlohr Bueso
2022-09-21 15:32 ` [PATCH v2 07/19] tools/testing/cxl: Add "Disable" security opcode support Dave Jiang
2022-11-07 14:36 ` Jonathan Cameron
2022-09-21 15:32 ` [PATCH v2 08/19] cxl/pmem: Add "Freeze Security State" security command support Dave Jiang
2022-09-21 20:25 ` Davidlohr Bueso
2022-09-21 15:32 ` [PATCH v2 09/19] tools/testing/cxl: Add "Freeze Security State" security opcode support Dave Jiang
2022-11-07 14:44 ` Jonathan Cameron
2022-11-07 19:01 ` Dave Jiang
2022-11-11 10:27 ` Jonathan Cameron
2022-09-21 15:32 ` [PATCH v2 10/19] cxl/pmem: Add "Unlock" security command support Dave Jiang
2022-09-21 21:49 ` Davidlohr Bueso
2022-11-07 14:55 ` Jonathan Cameron
2022-09-21 15:32 ` [PATCH v2 11/19] tools/testing/cxl: Add "Unlock" security opcode support Dave Jiang
2022-11-07 15:00 ` Jonathan Cameron
2022-09-21 15:32 ` [PATCH v2 12/19] cxl/pmem: Add "Passphrase Secure Erase" security command support Dave Jiang
2022-09-21 20:15 ` Davidlohr Bueso
2022-09-21 21:23 ` Dave Jiang
2022-11-07 15:25 ` Jonathan Cameron
2022-11-07 20:19 ` Dave Jiang
2022-09-21 15:32 ` Dave Jiang [this message]
2022-11-07 15:35 ` [PATCH v2 13/19] tools/testing/cxl: Add "passphrase secure erase" opcode support Jonathan Cameron
2022-11-07 21:58 ` Dave Jiang
2022-09-21 15:32 ` [PATCH v2 14/19] nvdimm/cxl/pmem: Add support for master passphrase disable security command Dave Jiang
2022-11-07 15:38 ` Jonathan Cameron
2022-09-21 15:32 ` [PATCH v2 15/19] cxl/pmem: add id attribute to CXL based nvdimm Dave Jiang
2022-11-07 15:41 ` Jonathan Cameron
2022-09-21 15:33 ` [PATCH v2 16/19] tools/testing/cxl: add mechanism to lock mem device for testing Dave Jiang
2022-11-07 15:56 ` Jonathan Cameron
2022-11-07 22:33 ` Dave Jiang
2022-09-21 15:33 ` [PATCH v2 17/19] cxl/pmem: add provider name to cxl pmem dimm attribute group Dave Jiang
2022-11-07 15:58 ` Jonathan Cameron
2022-11-07 23:46 ` Dave Jiang
2022-09-21 15:33 ` [PATCH v2 18/19] libnvdimm: Introduce CONFIG_NVDIMM_SECURITY_TEST flag Dave Jiang
2022-11-07 16:01 ` Jonathan Cameron
2022-11-07 23:46 ` Dave Jiang
2022-09-21 15:33 ` [PATCH v2 19/19] cxl: add dimm_id support for __nvdimm_create() Dave Jiang
2022-09-23 10:31 ` Davidlohr Bueso
2022-09-23 16:18 ` Dave Jiang
2022-11-07 16:05 ` Jonathan Cameron
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