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KEYS: Use common tpm_buf for trusted and asymmetric keys

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Switch to utilize common heap based tpm_buf code for TPM based trusted
and asymmetric keys rather than using stack based tpm1_buf code. Also,
remove tpm1_buf code.

Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
Sumit Garg
2019-10-16 10:44:53 +05:30
committed by Jarkko Sakkinen
parent 74edff2d74
commit c6f61e5976
3 changed files with 89 additions and 153 deletions
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37
include/keys/trusted.h
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@@ -5,10 +5,6 @@
/* implementation specific TPM constants */
#define MAX_BUF_SIZE 1024
#define TPM_GETRANDOM_SIZE 14
#define TPM_OSAP_SIZE 36
#define TPM_OIAP_SIZE 10
#define TPM_SEAL_SIZE 87
#define TPM_UNSEAL_SIZE 104
#define TPM_SIZE_OFFSET 2
#define TPM_RETURN_OFFSET 6
#define TPM_DATA_OFFSET 10
@@ -17,13 +13,6 @@
#define LOAD32N(buffer, offset) (*(uint32_t *)&buffer[offset])
#define LOAD16(buffer, offset) (ntohs(*(uint16_t *)&buffer[offset]))
struct tpm1_buf {
int len;
unsigned char data[MAX_BUF_SIZE];
};
#define INIT_BUF(tb) (tb->len = 0)
struct osapsess {
uint32_t handle;
unsigned char secret[SHA1_DIGEST_SIZE];
@@ -46,7 +35,7 @@ int TSS_checkhmac1(unsigned char *buffer,
unsigned int keylen, ...);
int trusted_tpm_send(unsigned char *cmd, size_t buflen);
int oiap(struct tpm1_buf *tb, uint32_t *handle, unsigned char *nonce);
int oiap(struct tpm_buf *tb, uint32_t *handle, unsigned char *nonce);
#define TPM_DEBUG 0
@@ -109,28 +98,4 @@ static inline void dump_tpm_buf(unsigned char *buf)
{
}
#endif
static inline void store8(struct tpm1_buf *buf, const unsigned char value)
{
buf->data[buf->len++] = value;
}
static inline void store16(struct tpm1_buf *buf, const uint16_t value)
{
*(uint16_t *) & buf->data[buf->len] = htons(value);
buf->len += sizeof value;
}
static inline void store32(struct tpm1_buf *buf, const uint32_t value)
{
*(uint32_t *) & buf->data[buf->len] = htonl(value);
buf->len += sizeof value;
}
static inline void storebytes(struct tpm1_buf *buf, const unsigned char *in,
const int len)
{
memcpy(buf->data + buf->len, in, len);
buf->len += len;
}
#endif