linux/security
Roberto Sassu c019e307ad ima: restore the original behavior for sending data with ima template
With the new template mechanism introduced in IMA since kernel 3.13,
the format of data sent through the binary_runtime_measurements interface
is slightly changed. Now, for a generic measurement, the format of
template data (after the template name) is:

template_len | field1_len | field1 | ... | fieldN_len | fieldN

In addition, fields containing a string now include the '\0' termination
character.

Instead, the format for the 'ima' template should be:

SHA1 digest | event name length | event name

It must be noted that while in the IMA 3.13 code 'event name length' is
'IMA_EVENT_NAME_LEN_MAX + 1' (256 bytes), so that the template digest
is calculated correctly, and 'event name' contains '\0', in the pre 3.13
code 'event name length' is exactly the string length and 'event name'
does not contain the termination character.

The patch restores the behavior of the IMA code pre 3.13 for the 'ima'
template so that legacy userspace tools obtain a consistent behavior
when receiving data from the binary_runtime_measurements interface
regardless of which kernel version is used.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Cc: <stable@vger.kernel.org> # 3.3.13: 3ce1217 ima: define template fields library
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
2014-03-07 11:32:29 -05:00
..
apparmor security: replace strict_strto*() with kstrto*() 2014-02-06 19:11:04 +11:00
integrity ima: restore the original behavior for sending data with ima template 2014-03-07 11:32:29 -05:00
keys security: replace strict_strto*() with kstrto*() 2014-02-06 19:11:04 +11:00
selinux security: replace strict_strto*() with kstrto*() 2014-02-06 19:11:04 +11:00
smack Smack: File receive audit correction 2013-12-31 13:35:27 -08:00
tomoyo Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
yama yama: Better permission check for ptraceme 2013-03-26 13:17:58 -07:00
capability.c Linux 3.12 2013-11-26 17:32:55 -05:00
commoncap.c capabilities: allow nice if we are privileged 2013-08-30 23:44:09 -07:00
device_cgroup.c device_cgroup: remove can_attach 2013-10-24 06:56:56 -04:00
inode.c securityfs: fix object creation races 2012-01-10 10:20:35 -05:00
Kconfig KEYS: Move the key config into security/keys/Kconfig 2012-05-11 10:56:56 +01:00
lsm_audit.c Merge git://git.infradead.org/users/eparis/audit 2013-11-21 19:18:14 -08:00
Makefile security: cleanup Makefiles to use standard syntax for specifying sub-directories 2014-02-17 11:08:04 +11:00
min_addr.c
security.c Linux 3.12 2013-11-26 17:32:55 -05:00