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tools/testing/cxl: Add "Unlock" security opcode support

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Add support to emulate a CXL mem device support the "Unlock" operation.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166983614730.2734609.2280484207184754073.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dave Jiang 2022-11-30 12:22:27 -07:00 committed by Dan Williams
parent 2bb692f7a6
commit 8e80b18664
1 changed files with 45 additions and 0 deletions
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45
tools/testing/cxl/test/mem.c
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@ -331,6 +331,48 @@ static int mock_freeze_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd
return 0;
}
static int mock_unlock_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
{
struct cxl_mock_mem_pdata *mdata = dev_get_platdata(cxlds->dev);
if (cmd->size_in != NVDIMM_PASSPHRASE_LEN)
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_PASS_SET)) {
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;
}
if (!(mdata->security_state & CXL_PMEM_SEC_STATE_LOCKED)) {
cmd->return_code = CXL_MBOX_CMD_RC_SECURITY;
return -ENXIO;
}
if (memcmp(cmd->payload_in, mdata->user_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;
}
mdata->user_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;
@ -438,6 +480,9 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *
case CXL_MBOX_OP_FREEZE_SECURITY:
rc = mock_freeze_security(cxlds, cmd);
break;
case CXL_MBOX_OP_UNLOCK:
rc = mock_unlock_security(cxlds, cmd);
break;
default:
break;
}