| From: |
| Tomas Winkler <[email protected]> |
| To: |
| [email protected], Ulf Hansson <[email protected]>, Adrian Hunter <[email protected]>, James Bottomley <[email protected]>, "Martin K. Petersen" <[email protected]>, Vinayak Holikatti <[email protected]> |
| Subject: |
| [PATCH 0/8] Replay Protected Memory Block (RPMB) subsystem |
| Date: |
| Sun, 3 Apr 2016 12:42:44 +0300 |
| Message-ID: |
| <[email protected]> |
| Cc: |
| Christoph Hellwig <[email protected]>, Yaniv Gardi <[email protected]>, Joao Pinto <[email protected]>, [email protected], [email protected], [email protected], Tomas Winkler <[email protected]> |
| Archive‑link: | |
Article |
Few storage technology such is EMMC, UFS, and NVMe support RPMB
hardware partition with common protocol and frame layout.
The RPMB partition cannot be accessed via standard block layer, but
by a set of specific commands: WRITE, READ, GET_WRITE_COUNTER, and
PROGRAM_KEY.
Such a partition provides authenticated and replay protected access,
hence suitable as a secure storage.
A storage device registers its RPMB hardware (emmc) partition or
RPMB W-LUN (ufs) with the RPMB layer providing an implementation for
send_rpmb_req() handler.
Tere is as well simulation platform device. This is handy as an RPMB
key can be programmed only once at storage device lifetime.
The RPMB layer aims to provide in-kernel API for Trusted Execution
Environment (TEE) devices that are capable to securely compute block
frame signature. A TEE driver can claim rpmb interface, for example,
via class_interface_register ().
A parallel user space API is provided via /dev/rpmbX character
device with a single IOCTL command similar to the one provided by
mmc/ioctl. h
There is a sample tool under tools/rpmb/ directory that exercises
this interface.
Tomas Winkler (8):
rpmb: add Replay Protected Memory Block (RPMB) subsystem
char: rpmb: add sysfs-class ABI documentation
char: rpmb: add device attributes
char: rpmb: provide user space interface
char: rpmb: add RPMB simulation device
tools rpmb: add RPBM access tool
mmc: block: register rpmb partition with the RPMB subsystem
scsi: ufs: connect to RPMB subsystem
Documentation/ABI/testing/sysfs-class-rpmb | 39 ++
Documentation/ioctl/ioctl-number.txt | 1 +
MAINTAINERS | 10 +
drivers/char/Kconfig | 2 +
drivers/char/Makefile | 1 +
drivers/char/rpmb/Kconfig | 25 +
drivers/char/rpmb/Makefile | 6 +
drivers/char/rpmb/cdev.c | 209 ++++++++
drivers/char/rpmb/core.c | 408 +++++++++++++++
drivers/char/rpmb/rpmb-cdev.h | 31 ++
drivers/char/rpmb/rpmb_sim.c | 584 +++++++++++++++++++++
drivers/mmc/card/block.c | 289 +++++++++++
drivers/scsi/ufs/ufshcd.c | 219 ++++++++
drivers/scsi/ufs/ufshcd.h | 2 +
include/linux/rpmb.h | 138 +++++
include/uapi/linux/rpmb.h | 120 +++++
tools/Makefile | 16 +-
tools/rpmb/.gitignore | 2 +
tools/rpmb/Makefile | 32 ++
tools/rpmb/rpmb.c | 807 +++++++++++++++++++++++++++++
20 files changed, 2936 insertions(+), 5 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-rpmb
create mode 100644 drivers/char/rpmb/Kconfig
create mode 100644 drivers/char/rpmb/Makefile
create mode 100644 drivers/char/rpmb/cdev.c
create mode 100644 drivers/char/rpmb/core.c
create mode 100644 drivers/char/rpmb/rpmb-cdev.h
create mode 100644 drivers/char/rpmb/rpmb_sim.c
create mode 100644 include/linux/rpmb.h
create mode 100644 include/uapi/linux/rpmb.h
create mode 100644 tools/rpmb/.gitignore
create mode 100644 tools/rpmb/Makefile
create mode 100644 tools/rpmb/rpmb.c
--
2.4.3
