[PATCH RFC v4 0/5] RFC: in-kernel resource manager

Jarkko Sakkinen
2017-01-22T23:44:47Z

This patch set adds support for TPM spaces that provide a context
for isolating and swapping transient objects. The content does
not yet include support for policy and HMAC sessions.

There's a test script for trying out TPM spaces in

git://git.infradead.org/users/jjs/tpm2-scripts.git

A simple smoke test can be run by

sudo python -m unittest -v tpm2_smoke.SpaceTest

v2:
Changed to James' proposal of API. I did not make any other changes
except split core TPM space code its own patch because I want to find
consensus on the API before polishing the corners. Thus, this version
also carries the RFC tag. I have not yet locked in my standpoint whether
ioctl or a device file is a better deal.

v3:
- Check TPM return code in tpm_map_response.
- Reference tracking for /dev/tpms0.
- clear_bit(is_open) was removed from tpm-dev.c. Added it back.
- Use response length as the buffer size limit in tpm2_commit_space.
- This version now passes again my smoke tests.

v4:
- Lots of small bug fixes and clean ups.
- Quirk for TPM2_CC_FlushHandle

James Bottomley (2):
tpm: split out tpm-dev.c into tpm-dev.c and tpm-common-dev.c
tpm2: expose spaces via a device link /dev/tpms<n>

Jarkko Sakkinen (3):
tpm: validate TPM 2.0 commands
tpm: export tpm2_flush_context_cmd
tpm: infrastructure for TPM spaces

drivers/char/tpm/Makefile | 2 +-
drivers/char/tpm/tpm-chip.c | 78 ++++++++-
drivers/char/tpm/tpm-dev-common.c | 145 ++++++++++++++++
drivers/char/tpm/tpm-dev.c | 140 ++--------------
drivers/char/tpm/tpm-dev.h | 27 +++
drivers/char/tpm/tpm-interface.c | 113 +++++++++----
drivers/char/tpm/tpm-sysfs.c | 2 +-
drivers/char/tpm/tpm.h | 57 ++++++-
drivers/char/tpm/tpm2-cmd.c | 150 ++++++++++++-----
drivers/char/tpm/tpm2-space.c | 336 ++++++++++++++++++++++++++++++++++++++
drivers/char/tpm/tpms-dev.c | 65 ++++++++
11 files changed, 903 insertions(+), 212 deletions(-)
create mode 100644 drivers/char/tpm/tpm-dev-common.c
create mode 100644 drivers/char/tpm/tpm-dev.h
create mode 100644 drivers/char/tpm/tpm2-space.c
create mode 100644 drivers/char/tpm/tpms-dev.c

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2.9.3