The following series implements security support for nvdimm. Mostly adding
new security DSM support from the Intel NVDIMM DSM spec v1.7, but also
adding generic support libnvdimm for other vendors. The most important
security features are unlocking locked nvdimms, and updating/setting security
passphrase to nvdimms.
Security folks, thanks in advance for taking a look at my key management
implementation and making sure that I'm doing something sane. Mainly you'll
want to review patches 2, 4, 5, and 6 as most relevant ones that need scrutiny.
v5:
- Moved dimm_id initialization (Dan)
- Added a key_put_sync() in order to run key_gc_work and cleanup old key. (Dan)
- Added check to block security state changes while DIMM is active. (Dan)
v4:
- flip payload layout for update passphrase to make it easier on userland.
v3:
- Set x86 wrappers for x86 only bits. (Dan)
- Fixed up some verbiage in commit headers.
- Put in usage of sysfs_streq() for sysfs inputs.
- 0-day build fixes for non-x86 archs.
v2:
- Move inclusion of intel.h to relevant source files and not in nfit.h. (Dan)
- Moved security ring relevant code to dimm_devs.c. (Dan)
- Added dimm_id to nfit_mem to avoid recreate per sysfs show call. (Dan)
- Added routine to return security_ops based on family supplied. (Dan)
- Added nvdimm_key_data struct to wrap raw passphrase string. (Dan)
- Allocate firmware package on stack. (Dan)
- Added missing frozen state detection when retrieving security state.
---
Dave Jiang (12):
nfit: add support for Intel DSM 1.7 commands
libnvdimm: create keyring to store security keys
nfit/libnvdimm: store dimm id as a member to struct nvdimm
nfit/libnvdimm: add unlock of nvdimm support for Intel DIMMs
keys: add call key_put_sync() to flush key_gc_work when doing a key_put().
nfit/libnvdimm: add set passphrase support for Intel nvdimms
nfit/libnvdimm: add disable passphrase support to Intel nvdimm.
nfit/libnvdimm: add freeze security support to Intel nvdimm
nfit/libnvdimm: add support for issue secure erase DSM to Intel nvdimm
nfit_test: add context to dimm_dev for nfit_test
nfit_test: add test support for Intel nvdimm security DSMs
libnvdimm: add documentation for nvdimm security support
Documentation/nvdimm/security | 70 ++++++
drivers/acpi/nfit/Makefile | 1
drivers/acpi/nfit/core.c | 58 ++++-
drivers/acpi/nfit/intel.c | 366 ++++++++++++++++++++++++++++++++
drivers/acpi/nfit/intel.h | 83 +++++++
drivers/acpi/nfit/nfit.h | 20 ++
drivers/nvdimm/bus.c | 2
drivers/nvdimm/core.c | 7 +
drivers/nvdimm/dimm.c | 7 +
drivers/nvdimm/dimm_devs.c | 430 ++++++++++++++++++++++++++++++++++++++
drivers/nvdimm/nd-core.h | 4
drivers/nvdimm/nd.h | 2
include/linux/key.h | 1
include/linux/libnvdimm.h | 41 +++-
security/keys/key.c | 35 +++
tools/testing/nvdimm/Kbuild | 1
tools/testing/nvdimm/test/nfit.c | 227 +++++++++++++++++++-
17 files changed, 1315 insertions(+), 40 deletions(-)
create mode 100644 Documentation/nvdimm/security
create mode 100644 drivers/acpi/nfit/intel.c
create mode 100644 drivers/acpi/nfit/intel.h
--
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