linux.git/security/integrity/ima/ima_template_lib.c, branch v3.14

Merge to v3.13-rc7 for prerequisite changes in the Xen code for TPM

2014-01-06T11:23:01+00:00

ima: remove unneeded size_limit argument from ima_eventdigest_init_common()

2014-01-03T12:43:00+00:00

This patch removes the 'size_limit' argument from
ima_eventdigest_init_common(). Since the 'd' field will never include
the hash algorithm as prefix and the 'd-ng' will always have it, we can
use the hash algorithm to differentiate the two cases in the modified
function (it is equal to HASH_ALGO__LAST in the first case, the opposite
in the second).

Signed-off-by: Roberto Sassu 
Signed-off-by: Mimi Zohar

ima: pass HASH_ALGO__LAST as hash algo in ima_eventdigest_init()

2014-01-03T12:42:59+00:00

Replace the '-1' value with HASH_ALGO__LAST in ima_eventdigest_init()
as the called function ima_eventdigest_init_common() expects an unsigned
char.

Fix commit:
  4d7aeee ima: define new template ima-ng and template fields d-ng and n-ng

Signed-off-by: Roberto Sassu 
Signed-off-by: Mimi Zohar

ima: change the default hash algorithm to SHA1 in ima_eventdigest_ng_init()

2014-01-03T12:42:57+00:00

Replace HASH_ALGO__LAST with HASH_ALGO_SHA1 as the initial value of
the hash algorithm so that the prefix 'sha1:' is added to violation
digests.

Fix commit:
  4d7aeee ima: define new template ima-ng and template fields d-ng and n-ng

Signed-off-by: Roberto Sassu 
Cc:  # 3.13.x
Signed-off-by: Mimi Zohar

ima: do not send field length to userspace for digest of ima template

2013-11-25T12:31:14+00:00

This patch defines a new value for the 'ima_show_type' enumerator
(IMA_SHOW_BINARY_NO_FIELD_LEN) to prevent that the field length
is transmitted through the 'binary_runtime_measurements' interface
for the digest field of the 'ima' template.

Fixes commit: 3ce1217 ima: define template fields library and new helpers

Signed-off-by: Roberto Sassu 
Signed-off-by: Mimi Zohar

ima: extend the measurement list to include the file signature

2013-11-01T00:19:35+00:00

This patch defines a new template called 'ima-sig', which includes
the file signature in the template data, in addition to the file's
digest and pathname.

A template is composed of a set of fields.  Associated with each
field is an initialization and display function.  This patch defines
a new template field called 'sig', the initialization function
ima_eventsig_init(), and the display function ima_show_template_sig().

This patch modifies the .field_init() function definition to include
the 'security.ima' extended attribute and length.

Changelog:
- remove unused code (Dmitry Kasatkin)
- avoid calling ima_write_template_field_data() unnecesarily (Roberto Sassu)
- rename DATA_FMT_SIG to DATA_FMT_HEX
- cleanup ima_eventsig_init() based on Roberto's comments

Signed-off-by: Mimi Zohar 
Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Roberto Sassu

ima: define new template ima-ng and template fields d-ng and n-ng

2013-10-25T21:17:05+00:00

This patch adds support for the new template 'ima-ng', whose format
is defined as 'd-ng|n-ng'.  These new field definitions remove the
size limitations of the original 'ima' template.  Further, the 'd-ng'
field prefixes the inode digest with the hash algorithim, when
displaying the new larger digest sizes.

Change log:
- scripts/Lindent fixes  - Mimi
- "always true comparison" - reported by Fengguang Wu, resolved Dmitry
- initialize hash_algo variable to HASH_ALGO__LAST
- always prefix digest with hash algorithm - Mimi

Signed-off-by: Roberto Sassu 
Signed-off-by: Mimi Zohar

ima: define template fields library and new helpers

2013-10-25T21:17:05+00:00

This patch defines a library containing two initial template fields,
inode digest (d) and file name (n), the 'ima' template descriptor,
whose format is 'd|n', and two helper functions,
ima_write_template_field_data() and ima_show_template_field_data().

Changelog:
- replace ima_eventname_init() parameter NULL checking with BUG_ON.
  (suggested by Mimi)
- include "new template fields for inode digest (d) and file name (n)"
  definitions to fix a compiler warning.  - Mimi
- unnecessary to prefix static function names with 'ima_'. remove
  prefix to resolve Lindent formatting changes. - Mimi
- abbreviated/removed inline comments - Mimi
- always send the template field length - Mimi

Signed-off-by: Roberto Sassu 
Signed-off-by: Mimi Zohar