[fsverity-utils PATCH v2 0/4] Add libfsverity_enable() and default params

[Eric Biggers <ebiggers@kernel.org>]

This patchset adds wrappers around FS_IOC_ENABLE_VERITY to libfsverity,
makes libfsverity (rather than just the fsverity program) default to
SHA-256 and 4096-byte blocks, and makes the fsverity commands share code
to parse the libfsverity_merkle_tree_params.

This is my proposed alternative to Luca's patch
https://lkml.kernel.org/linux-fscrypt/20201113143527.1097499-1-luca.boccassi@gmail.com

Changed since v1:
  - Moved the default hash algorithm and block size handling into
    libfsverity.

Eric Biggers (4):
  programs/fsverity: change default block size from PAGE_SIZE to 4096
  lib/compute_digest: add default hash_algorithm and block_size
  lib: add libfsverity_enable() and libfsverity_enable_with_sig()
  programs/fsverity: share code to parse tree parameters

 include/libfsverity.h          | 83 +++++++++++++++++++++++++++++-----
 lib/compute_digest.c           | 27 ++++++-----
 lib/enable.c                   | 47 +++++++++++++++++++
 lib/lib_private.h              |  6 +++
 programs/cmd_digest.c          | 31 ++-----------
 programs/cmd_enable.c          | 34 +++-----------
 programs/cmd_sign.c            | 32 ++-----------
 programs/fsverity.c            | 35 ++++++++------
 programs/fsverity.h            | 21 ++++++---
 programs/test_compute_digest.c | 18 +++++---
 10 files changed, 201 insertions(+), 133 deletions(-)
 create mode 100644 lib/enable.c

-- 
2.29.2