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authorDmitry Kasatkin <dmitry.kasatkin@intel.com>2012-06-08 12:58:49 +0200
committerMimi Zohar <zohar@linux.vnet.ibm.com>2013-01-22 22:10:31 +0100
commit0e5a247cb37a97d843ef76d09d5f80deb7893ba3 (patch)
tree7206abaf6d20e69a89584046ed7dc9970ba2da12 /Documentation
parentima: forbid write access to files with digital signatures (diff)
downloadlinux-0e5a247cb37a97d843ef76d09d5f80deb7893ba3.tar.xz
linux-0e5a247cb37a97d843ef76d09d5f80deb7893ba3.zip
ima: added policy support for 'security.ima' type
The 'security.ima' extended attribute may contain either the file data's hash or a digital signature. This patch adds support for requiring a specific extended attribute type. It extends the IMA policy with a new keyword 'appraise_type=imasig'. (Default is hash.) Changelog v2: - Fixed Documentation/ABI/testing/ima_policy option syntax Changelog v1: - Differentiate between 'required' vs. 'actual' extended attribute Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/ima_policy4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy
index 6a0fc808fb6d..de16de3f148d 100644
--- a/Documentation/ABI/testing/ima_policy
+++ b/Documentation/ABI/testing/ima_policy
@@ -18,10 +18,11 @@ Description:
rule format: action [condition ...]
action: measure | dont_measure | appraise | dont_appraise | audit
- condition:= base | lsm
+ condition:= base | lsm [option]
base: [[func=] [mask=] [fsmagic=] [uid=] [fowner]]
lsm: [[subj_user=] [subj_role=] [subj_type=]
[obj_user=] [obj_role=] [obj_type=]]
+ option: [[appraise_type=]]
base: func:= [BPRM_CHECK][MMAP_CHECK][FILE_CHECK][MODULE_CHECK]
mask:= [MAY_READ] [MAY_WRITE] [MAY_APPEND] [MAY_EXEC]
@@ -29,6 +30,7 @@ Description:
uid:= decimal value
fowner:=decimal value
lsm: are LSM specific
+ option: appraise_type:= [imasig]
default policy:
# PROC_SUPER_MAGIC