diff options
author | Dave Jiang <dave.jiang@intel.com> | 2022-11-30 22:22:04 +0300 |
---|---|---|
committer | Dan Williams <dan.j.williams@intel.com> | 2022-12-01 23:42:35 +0300 |
commit | abf0c8380a487d050da58e344635f4e96dd3c467 (patch) | |
tree | 6cda74c804b464c6bd94715423bd73a022a740de /tools/testing | |
parent | c4ef680d0b72815003a76074ca1cd872a2fecfc3 (diff) | |
download | linux-abf0c8380a487d050da58e344635f4e96dd3c467.tar.xz |
tools/testing/cxl: Add "Disable" security opcode support
Add support to emulate a CXL mem device support the "Disable Passphrase"
operation. The operation supports disabling of either a user or a master
passphrase. The emulation will provide support for both user and master
passphrase.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166983612447.2734609.2767804273351656413.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools/testing')
-rw-r--r-- | tools/testing/cxl/test/mem.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 33ae7953f3f1..77774a951a81 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -243,6 +243,77 @@ static int mock_set_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd return -EINVAL; } +static int mock_disable_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) +{ + struct cxl_mock_mem_pdata *mdata = dev_get_platdata(cxlds->dev); + struct cxl_disable_pass *dis_pass; + + if (cmd->size_in != sizeof(*dis_pass)) + 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; + } + + dis_pass = cmd->payload_in; + switch (dis_pass->type) { + case CXL_PMEM_SEC_PASS_MASTER: + if (mdata->security_state & CXL_PMEM_SEC_STATE_MASTER_PLIMIT) { + cmd->return_code = CXL_MBOX_CMD_RC_SECURITY; + return -ENXIO; + } + + if (!(mdata->security_state & CXL_PMEM_SEC_STATE_MASTER_PASS_SET)) { + cmd->return_code = CXL_MBOX_CMD_RC_SECURITY; + return -ENXIO; + } + + if (memcmp(dis_pass->pass, mdata->master_pass, NVDIMM_PASSPHRASE_LEN)) { + master_plimit_check(mdata); + cmd->return_code = CXL_MBOX_CMD_RC_PASSPHRASE; + return -ENXIO; + } + + mdata->master_limit = 0; + memset(mdata->master_pass, 0, NVDIMM_PASSPHRASE_LEN); + mdata->security_state &= ~CXL_PMEM_SEC_STATE_MASTER_PASS_SET; + return 0; + + case CXL_PMEM_SEC_PASS_USER: + 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_USER_PASS_SET)) { + cmd->return_code = CXL_MBOX_CMD_RC_SECURITY; + return -ENXIO; + } + + if (memcmp(dis_pass->pass, mdata->user_pass, NVDIMM_PASSPHRASE_LEN)) { + user_plimit_check(mdata); + cmd->return_code = CXL_MBOX_CMD_RC_PASSPHRASE; + return -ENXIO; + } + + mdata->user_limit = 0; + memset(mdata->user_pass, 0, NVDIMM_PASSPHRASE_LEN); + mdata->security_state &= ~(CXL_PMEM_SEC_STATE_USER_PASS_SET | + CXL_PMEM_SEC_STATE_LOCKED); + return 0; + + default: + cmd->return_code = CXL_MBOX_CMD_RC_INPUT; + return -EINVAL; + } + + 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; @@ -344,6 +415,9 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd * case CXL_MBOX_OP_SET_PASSPHRASE: rc = mock_set_passphrase(cxlds, cmd); break; + case CXL_MBOX_OP_DISABLE_PASSPHRASE: + rc = mock_disable_passphrase(cxlds, cmd); + break; default: break; } |