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Diffstat (limited to 'drivers/char/tpm/tpm.h')
-rw-r--r--drivers/char/tpm/tpm.h142
1 files changed, 142 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 8e30df4..8e00b4d 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -26,6 +26,7 @@
#include <linux/miscdevice.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/tpm.h>
enum tpm_timeout {
TPM_TIMEOUT = 5, /* msecs */
@@ -123,6 +124,147 @@ static inline void tpm_write_index(int base, int index, int value)
outb(index, base);
outb(value & 0xFF, base+1);
}
+struct tpm_input_header {
+ __be16 tag;
+ __be32 length;
+ __be32 ordinal;
+}__attribute__((packed));
+
+struct tpm_output_header {
+ __be16 tag;
+ __be32 length;
+ __be32 return_code;
+}__attribute__((packed));
+
+struct stclear_flags_t {
+ __be16 tag;
+ u8 deactivated;
+ u8 disableForceClear;
+ u8 physicalPresence;
+ u8 physicalPresenceLock;
+ u8 bGlobalLock;
+}__attribute__((packed));
+
+struct tpm_version_t {
+ u8 Major;
+ u8 Minor;
+ u8 revMajor;
+ u8 revMinor;
+}__attribute__((packed));
+
+struct tpm_version_1_2_t {
+ __be16 tag;
+ u8 Major;
+ u8 Minor;
+ u8 revMajor;
+ u8 revMinor;
+}__attribute__((packed));
+
+struct timeout_t {
+ __be32 a;
+ __be32 b;
+ __be32 c;
+ __be32 d;
+}__attribute__((packed));
+
+struct duration_t {
+ __be32 tpm_short;
+ __be32 tpm_medium;
+ __be32 tpm_long;
+}__attribute__((packed));
+
+struct permanent_flags_t {
+ __be16 tag;
+ u8 disable;
+ u8 ownership;
+ u8 deactivated;
+ u8 readPubek;
+ u8 disableOwnerClear;
+ u8 allowMaintenance;
+ u8 physicalPresenceLifetimeLock;
+ u8 physicalPresenceHWEnable;
+ u8 physicalPresenceCMDEnable;
+ u8 CEKPUsed;
+ u8 TPMpost;
+ u8 TPMpostLock;
+ u8 FIPS;
+ u8 operator;
+ u8 enableRevokeEK;
+ u8 nvLocked;
+ u8 readSRKPub;
+ u8 tpmEstablished;
+ u8 maintenanceDone;
+ u8 disableFullDALogicInfo;
+}__attribute__((packed));
+
+typedef union {
+ struct permanent_flags_t perm_flags;
+ struct stclear_flags_t stclear_flags;
+ bool owned;
+ __be32 num_pcrs;
+ struct tpm_version_t tpm_version;
+ struct tpm_version_1_2_t tpm_version_1_2;
+ __be32 manufacturer_id;
+ struct timeout_t timeout;
+ struct duration_t duration;
+} cap_t;
+
+struct tpm_getcap_params_in {
+ __be32 cap;
+ __be32 subcap_size;
+ __be32 subcap;
+}__attribute__((packed));
+
+struct tpm_getcap_params_out {
+ __be32 cap_size;
+ cap_t cap;
+}__attribute__((packed));
+
+struct tpm_readpubek_params_out {
+ u8 algorithm[4];
+ u8 encscheme[2];
+ u8 sigscheme[2];
+ u8 parameters[12]; /*assuming RSA*/
+ __be32 keysize;
+ u8 modulus[256];
+ u8 checksum[20];
+}__attribute__((packed));
+
+typedef union {
+ struct tpm_input_header in;
+ struct tpm_output_header out;
+} tpm_cmd_header;
+
+#define TPM_DIGEST_SIZE 20
+struct tpm_pcrread_out {
+ u8 pcr_result[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
+struct tpm_pcrread_in {
+ __be32 pcr_idx;
+}__attribute__((packed));
+
+struct tpm_pcrextend_in {
+ __be32 pcr_idx;
+ u8 hash[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
+typedef union {
+ struct tpm_getcap_params_out getcap_out;
+ struct tpm_readpubek_params_out readpubek_out;
+ u8 readpubek_out_buffer[sizeof(struct tpm_readpubek_params_out)];
+ struct tpm_getcap_params_in getcap_in;
+ struct tpm_pcrread_in pcrread_in;
+ struct tpm_pcrread_out pcrread_out;
+ struct tpm_pcrextend_in pcrextend_in;
+} tpm_cmd_params;
+
+struct tpm_cmd_t {
+ tpm_cmd_header header;
+ tpm_cmd_params params;
+}__attribute__((packed));
+
+ssize_t tpm_getcap(struct device *, __be32, cap_t *, const char *);
extern void tpm_get_timeouts(struct tpm_chip *);
extern void tpm_gen_interrupt(struct tpm_chip *);
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