diff options
| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2016-12-19 16:22:48 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-20 09:48:44 -0800 |
| commit | 7b8589cc29e7c35dcfd2d5138979f17b48f90110 (patch) | |
| tree | 034068b5b20ee7e55247197c5df5d94e6aeadee6 /security/integrity/ima/ima_fs.c | |
| parent | ab6b1d1fc4aae6b8bd6fb1422405568094c9b40f (diff) | |
ima: on soft reboot, save the measurement list
The TPM PCRs are only reset on a hard reboot. In order to validate a
TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement
list of the running kernel must be saved and restored on boot.
This patch uses the kexec buffer passing mechanism to pass the
serialized IMA binary_runtime_measurements to the next kernel.
Link: http://lkml.kernel.org/r/1480554346-29071-7-git-send-email-zohar@linux.vnet.ibm.com
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
Cc: Andreas Steffen <andreas.steffen@strongswan.org>
Cc: Josh Sklar <sklar@linux.vnet.ibm.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security/integrity/ima/ima_fs.c')
| -rw-r--r-- | security/integrity/ima/ima_fs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c index 3df46906492d..10bea0125fa1 100644 --- a/security/integrity/ima/ima_fs.c +++ b/security/integrity/ima/ima_fs.c @@ -116,7 +116,7 @@ void ima_putc(struct seq_file *m, void *data, int datalen) * [eventdata length] * eventdata[n]=template specific data */ -static int ima_measurements_show(struct seq_file *m, void *v) +int ima_measurements_show(struct seq_file *m, void *v) { /* the list never shrinks, so we don't need a lock here */ struct ima_queue_entry *qe = v; |