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authorKylene Jo Hall <kjhall@us.ibm.com>2006-01-08 01:03:15 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 20:13:55 -0800
commit55a82ab3181be039c6440d3f2f69260ad6fe2988 (patch)
tree6acf566ae3831b0f4f8b428fbaa0e335bc7a2691 /drivers/char/tpm/tpm.h
parent485a6435abc3897934ce0dc530e31db93e9296a6 (diff)
downloadblackbird-op-linux-55a82ab3181be039c6440d3f2f69260ad6fe2988.tar.gz
blackbird-op-linux-55a82ab3181be039c6440d3f2f69260ad6fe2988.zip
[PATCH] tpm: add bios measurement log
According to the TCG specifications measurements or hashes of the BIOS code and data are extended into TPM PCRS and a log is kept in an ACPI table of these extensions for later validation if desired. This patch exports the values in the ACPI table through a security-fs seq_file. Signed-off-by: Seiji Munetoh <munetoh@jp.ibm.com> Signed-off-by: Stefan Berger <stefanb@us.ibm.com> Signed-off-by: Reiner Sailer <sailer@us.ibm.com> Signed-off-by: Kylene Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/tpm/tpm.h')
-rw-r--r--drivers/char/tpm/tpm.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 159882ca69dd..fd3a4beaa53d 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -82,6 +82,8 @@ struct tpm_chip {
struct tpm_vendor_specific *vendor;
+ struct dentry **bios_dir;
+
struct list_head list;
};
@@ -107,3 +109,16 @@ extern ssize_t tpm_read(struct file *, char __user *, size_t, loff_t *);
extern void tpm_remove_hardware(struct device *);
extern int tpm_pm_suspend(struct device *, pm_message_t);
extern int tpm_pm_resume(struct device *);
+
+#ifdef CONFIG_ACPI
+extern struct dentry ** tpm_bios_log_setup(char *);
+extern void tpm_bios_log_teardown(struct dentry **);
+#else
+static inline struct dentry* tpm_bios_log_setup(char *name)
+{
+ return NULL;
+}
+static inline void tpm_bios_log_teardown(struct dentry **dir)
+{
+}
+#endif
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