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| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2015-06-11 20:48:33 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-03 09:29:12 -0700 |
| commit | 66963999a2b2f589e108c786bfcb2e2b560d920e (patch) | |
| tree | 9ccf2dfc049e3f1d7a1dfd054239bcb118771a7a /Documentation | |
| parent | bf609547cdb2f274fb5bd978affc8649022b5d3a (diff) | |
| download | lwn-66963999a2b2f589e108c786bfcb2e2b560d920e.tar.gz lwn-66963999a2b2f589e108c786bfcb2e2b560d920e.zip | |
ima: update builtin policies
commit 24fd03c87695a76f0517df42a37e51b1597d2c8a upstream.
This patch defines a builtin measurement policy "tcb", similar to the
existing "ima_tcb", but with additional rules to also measure files
based on the effective uid and to measure files opened with the "read"
mode bit set (eg. read, read-write).
Changing the builtin "ima_tcb" policy could potentially break existing
users. Instead of defining a new separate boot command line option each
time the builtin measurement policy is modified, this patch defines a
single generic boot command line option "ima_policy=" to specify the
builtin policy and deprecates the use of the builtin ima_tcb policy.
[The "ima_policy=" boot command line option is based on Roberto Sassu's
"ima: added new policy type exec" patch.]
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Dr. Greg Wettstein <gw@idfusion.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 6726139bd289..cd03a0faca8f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1398,7 +1398,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. The list of supported hash algorithms is defined in crypto/hash_info.h. - ima_tcb [IMA] + ima_policy= [IMA] + The builtin measurement policy to load during IMA + setup. Specyfing "tcb" as the value, measures all + programs exec'd, files mmap'd for exec, and all files + opened with the read mode bit set by either the + effective uid (euid=0) or uid=0. + Format: "tcb" + + ima_tcb [IMA] Deprecated. Use ima_policy= instead. Load a policy which meets the needs of the Trusted Computing Base. This means IMA will measure all programs exec'd, files mmap'd for exec, and all files |