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authorRajiv Andrade <srajiv@linux.vnet.ibm.com>2009-02-02 20:23:44 +0300
committerJames Morris <jmorris@namei.org>2009-02-03 03:23:12 +0300
commit659aaf2bb5496a425ba14036b5b5900f593e4484 (patch)
treea9736fc70c8837665bc0f0a375dab5382941d77a /include/linux/tpm.h
parent0883743825e34b81f3ff78aaee3a97cba57586c5 (diff)
downloadlinux-659aaf2bb5496a425ba14036b5b5900f593e4484.tar.xz
TPM: integrity interface
This patch adds internal kernel support for: - reading/extending a pcr value - looking up the tpm_chip for a given chip number Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'include/linux/tpm.h')
-rw-r--r--include/linux/tpm.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/include/linux/tpm.h b/include/linux/tpm.h
new file mode 100644
index 000000000000..3338b3f5c21a
--- /dev/null
+++ b/include/linux/tpm.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2004,2007,2008 IBM Corporation
+ *
+ * Authors:
+ * Leendert van Doorn <leendert@watson.ibm.com>
+ * Dave Safford <safford@watson.ibm.com>
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Kylene Hall <kjhall@us.ibm.com>
+ * Debora Velarde <dvelarde@us.ibm.com>
+ *
+ * Maintained by: <tpmdd_devel@lists.sourceforge.net>
+ *
+ * Device driver for TCG/TCPA TPM (trusted platform module).
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ */
+#ifndef __LINUX_TPM_H__
+#define __LINUX_TPM_H__
+
+/*
+ * Chip num is this value or a valid tpm idx
+ */
+#define TPM_ANY_NUM 0xFFFF
+
+#if defined(CONFIG_TCG_TPM)
+
+extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);
+extern int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash);
+#endif
+#endif