[RFC PATCH 0/4] IMA: Export functions for file integrity verification

[Vivek Goyal]

Hi,

This is just a proof of concept RFC to export some functions from IMA for
file integrity verification. And there is a patch which modified binfmt_elf.c
to show how a IMA subsystem user can call into IMA to verify integrity
of a file.

This patch set is far from being done. I am just throwing it out so that
we can start a discussion on whether exporting IMA functions makes sense
and if it does, then how those functions should look like.

Thanks
Vivek

Vivek Goyal (4):
  integrity: Identify asymmetric digital signature using new type
  ima: export new IMA functions for signature verification
  capability: Create a new capability CAP_SIGNED
  binfmt_elf: Elf executable signature verification

 fs/Kconfig.binfmt                     |   12 ++++++++
 fs/binfmt_elf.c                       |   44 +++++++++++++++++++++++++++++++
 include/linux/ima.h                   |   24 ++++++++++++++++-
 include/linux/integrity.h             |    7 +++++
 include/uapi/linux/capability.h       |   12 ++++++++-
 kernel/cred.c                         |    7 +++++
 security/commoncap.c                  |    2 +
 security/integrity/digsig.c           |   11 +++++---
 security/integrity/evm/evm_main.c     |    4 ++-
 security/integrity/ima/ima_api.c      |   16 +++++++++++
 security/integrity/ima/ima_appraise.c |   46 +++++++++++++++++++++++++++++++-
 security/integrity/integrity.h        |   14 +++------
 12 files changed, 181 insertions(+), 18 deletions(-)

-- 
1.7.7.6

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