Contributors: 8
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Mimi Zohar |
425 |
86.73% |
3 |
21.43% |
| Jarkko Sakkinen |
26 |
5.31% |
2 |
14.29% |
| Denis Kenzior |
19 |
3.88% |
2 |
14.29% |
| Sumit Garg |
14 |
2.86% |
3 |
21.43% |
| Kylene Jo Hall |
3 |
0.61% |
1 |
7.14% |
| Stefan Berger |
1 |
0.20% |
1 |
7.14% |
| Nick Desaulniers |
1 |
0.20% |
1 |
7.14% |
| Greg Kroah-Hartman |
1 |
0.20% |
1 |
7.14% |
| Total |
490 |
|
14 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TRUSTED_TPM_H
#define __TRUSTED_TPM_H
#include <keys/trusted-type.h>
#include <linux/tpm_command.h>
/* implementation specific TPM constants */
#define MAX_BUF_SIZE 1024
#define TPM_GETRANDOM_SIZE 14
#define TPM_SIZE_OFFSET 2
#define TPM_RETURN_OFFSET 6
#define TPM_DATA_OFFSET 10
#define LOAD32(buffer, offset) (ntohl(*(uint32_t *)&buffer[offset]))
#define LOAD32N(buffer, offset) (*(uint32_t *)&buffer[offset])
#define LOAD16(buffer, offset) (ntohs(*(uint16_t *)&buffer[offset]))
extern struct trusted_key_ops trusted_key_tpm_ops;
struct osapsess {
uint32_t handle;
unsigned char secret[SHA1_DIGEST_SIZE];
unsigned char enonce[TPM_NONCE_SIZE];
};
/* discrete values, but have to store in uint16_t for TPM use */
enum {
SEAL_keytype = 1,
SRK_keytype = 4
};
int TSS_authhmac(unsigned char *digest, const unsigned char *key,
unsigned int keylen, unsigned char *h1,
unsigned char *h2, unsigned int h3, ...);
int TSS_checkhmac1(unsigned char *buffer,
const uint32_t command,
const unsigned char *ononce,
const unsigned char *key,
unsigned int keylen, ...);
int trusted_tpm_send(unsigned char *cmd, size_t buflen);
int oiap(struct tpm_buf *tb, uint32_t *handle, unsigned char *nonce);
int tpm2_seal_trusted(struct tpm_chip *chip,
struct trusted_key_payload *payload,
struct trusted_key_options *options);
int tpm2_unseal_trusted(struct tpm_chip *chip,
struct trusted_key_payload *payload,
struct trusted_key_options *options);
#define TPM_DEBUG 0
#if TPM_DEBUG
static inline void dump_options(struct trusted_key_options *o)
{
pr_info("sealing key type %d\n", o->keytype);
pr_info("sealing key handle %0X\n", o->keyhandle);
pr_info("pcrlock %d\n", o->pcrlock);
pr_info("pcrinfo %d\n", o->pcrinfo_len);
print_hex_dump(KERN_INFO, "pcrinfo ", DUMP_PREFIX_NONE,
16, 1, o->pcrinfo, o->pcrinfo_len, 0);
}
static inline void dump_sess(struct osapsess *s)
{
print_hex_dump(KERN_INFO, "trusted-key: handle ", DUMP_PREFIX_NONE,
16, 1, &s->handle, 4, 0);
pr_info("secret:\n");
print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE,
16, 1, &s->secret, SHA1_DIGEST_SIZE, 0);
pr_info("trusted-key: enonce:\n");
print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE,
16, 1, &s->enonce, SHA1_DIGEST_SIZE, 0);
}
static inline void dump_tpm_buf(unsigned char *buf)
{
int len;
pr_info("\ntpm buffer\n");
len = LOAD32(buf, TPM_SIZE_OFFSET);
print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 1, buf, len, 0);
}
#else
static inline void dump_options(struct trusted_key_options *o)
{
}
static inline void dump_sess(struct osapsess *s)
{
}
static inline void dump_tpm_buf(unsigned char *buf)
{
}
#endif
#endif