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authorMimi Zohar2009-02-04 08:06:58 -0600
committerJames Morris2009-02-05 16:05:30 -0600
commit3323eec921efd815178a23107ab63588c605c0b2 (patch)
treebc9e9714ac4881ebc515c1bd155674c52c356d6a /security/Kconfig
parent6146f0d5e47ca4047ffded0fb79b6c25359b386c (diff)
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integrity: IMA as an integrity service provider
IMA provides hardware (TPM) based measurement and attestation for file measurements. As the Trusted Computing (TPM) model requires, IMA measures all files before they are accessed in any way (on the integrity_bprm_check, integrity_path_check and integrity_file_mmap hooks), and commits the measurements to the TPM. Once added to the TPM, measurements can not be removed. In addition, IMA maintains a list of these file measurements, which can be used to validate the aggregate value stored in the TPM. The TPM can sign these measurements, and thus the system can prove, to itself and to a third party, the system's integrity in a way that cannot be circumvented by malicious or compromised software. - alloc ima_template_entry before calling ima_store_template() - log ima_add_boot_aggregate() failure - removed unused IMA_TEMPLATE_NAME_LEN - replaced hard coded string length with #define name Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/Kconfig')
-rw-r--r--security/Kconfig5
1 files changed, 4 insertions, 1 deletions
diff --git a/security/Kconfig b/security/Kconfig
index d9f47ce7e20..a79b23f73d0 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -55,7 +55,8 @@ config SECURITYFS
55 bool "Enable the securityfs filesystem" 55 bool "Enable the securityfs filesystem"
56 help 56 help
57 This will build the securityfs filesystem. It is currently used by 57 This will build the securityfs filesystem. It is currently used by
58 the TPM bios character driver. It is not used by SELinux or SMACK. 58 the TPM bios character driver and IMA, an integrity provider. It is
59 not used by SELinux or SMACK.
59 60
60 If you are unsure how to answer this question, answer N. 61 If you are unsure how to answer this question, answer N.
61 62
@@ -126,5 +127,7 @@ config SECURITY_DEFAULT_MMAP_MIN_ADDR
126source security/selinux/Kconfig 127source security/selinux/Kconfig
127source security/smack/Kconfig 128source security/smack/Kconfig
128 129
130source security/integrity/ima/Kconfig
131
129endmenu 132endmenu
130 133