struct class *tpmrm_class;
dev_t tpm_devt;
-static int tpm_request_locality(struct tpm_chip *chip, unsigned int flags)
+static int tpm_request_locality(struct tpm_chip *chip)
{
int rc;
return 0;
}
-static void tpm_relinquish_locality(struct tpm_chip *chip, unsigned int flags)
+static void tpm_relinquish_locality(struct tpm_chip *chip)
{
int rc;
chip->locality = -1;
}
-static int tpm_cmd_ready(struct tpm_chip *chip, unsigned int flags)
+static int tpm_cmd_ready(struct tpm_chip *chip)
{
if (!chip->ops->cmd_ready)
return 0;
return chip->ops->cmd_ready(chip);
}
-static int tpm_go_idle(struct tpm_chip *chip, unsigned int flags)
+static int tpm_go_idle(struct tpm_chip *chip)
{
if (!chip->ops->go_idle)
return 0;
/**
* tpm_chip_start() - power on the TPM
* @chip: a TPM chip to use
- * @flags: TPM transmit flags
*
* Return:
* * The response length - OK
* * -errno - A system error
*/
-int tpm_chip_start(struct tpm_chip *chip, unsigned int flags)
+int tpm_chip_start(struct tpm_chip *chip)
{
int ret;
chip->ops->clk_enable(chip, true);
if (chip->locality == -1) {
- ret = tpm_request_locality(chip, flags);
+ ret = tpm_request_locality(chip);
if (ret) {
chip->ops->clk_enable(chip, false);
return ret;
}
}
- ret = tpm_cmd_ready(chip, flags);
+ ret = tpm_cmd_ready(chip);
if (ret) {
- tpm_relinquish_locality(chip, flags);
+ tpm_relinquish_locality(chip);
if (chip->ops->clk_enable)
chip->ops->clk_enable(chip, false);
return ret;
/**
* tpm_chip_stop() - power off the TPM
* @chip: a TPM chip to use
- * @flags: TPM transmit flags
*
* Return:
* * The response length - OK
* * -errno - A system error
*/
-void tpm_chip_stop(struct tpm_chip *chip, unsigned int flags)
+void tpm_chip_stop(struct tpm_chip *chip)
{
- tpm_go_idle(chip, flags);
- tpm_relinquish_locality(chip, flags);
+ tpm_go_idle(chip);
+ tpm_relinquish_locality(chip);
if (chip->ops->clk_enable)
chip->ops->clk_enable(chip, false);
}
goto out_ops;
mutex_lock(&chip->tpm_mutex);
- rc = tpm_chip_start(chip, 0);
+ rc = tpm_chip_start(chip);
if (rc)
goto out_lock;
*/
void tpm_put_ops(struct tpm_chip *chip)
{
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
mutex_unlock(&chip->tpm_mutex);
up_read(&chip->ops_sem);
put_device(&chip->dev);
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
down_write(&chip->ops_sem);
- if (!tpm_chip_start(chip, 0)) {
+ if (!tpm_chip_start(chip)) {
tpm2_shutdown(chip, TPM2_SU_CLEAR);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
}
chip->ops = NULL;
up_write(&chip->ops_sem);
/* Make the driver uncallable. */
down_write(&chip->ops_sem);
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
- if (!tpm_chip_start(chip, 0)) {
+ if (!tpm_chip_start(chip)) {
tpm2_shutdown(chip, TPM2_SU_CLEAR);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
}
}
chip->ops = NULL;
{
int rc;
- rc = tpm_chip_start(chip, 0);
+ rc = tpm_chip_start(chip);
if (rc)
return rc;
rc = tpm_auto_startup(chip);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
if (rc)
return rc;
if (ret)
goto out_rc;
- len = tpm_transmit(chip, buf, bufsiz, 0);
+ len = tpm_transmit(chip, buf, bufsiz);
if (len < 0)
ret = len;
}
EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration);
-static ssize_t tpm_try_transmit(struct tpm_chip *chip, void *buf, size_t bufsiz,
- unsigned int flags)
+static ssize_t tpm_try_transmit(struct tpm_chip *chip, void *buf, size_t bufsiz)
{
struct tpm_header *header = buf;
int rc;
* @chip: a TPM chip to use
* @buf: a TPM command buffer
* @bufsiz: length of the TPM command buffer
- * @flags: TPM transmit flags
*
* A wrapper around tpm_try_transmit() that handles TPM2_RC_RETRY returns from
* the TPM and retransmits the command after a delay up to a maximum wait of
* * The response length - OK
* * -errno - A system error
*/
-ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz,
- unsigned int flags)
+ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz)
{
struct tpm_header *header = (struct tpm_header *)buf;
/* space for header and handles */
memcpy(save, buf, save_size);
for (;;) {
- ret = tpm_try_transmit(chip, buf, bufsiz, flags);
+ ret = tpm_try_transmit(chip, buf, bufsiz);
if (ret < 0)
break;
rc = be32_to_cpu(header->return_code);
* @chip: a TPM chip to use
* @buf: a TPM command buffer
* @min_rsp_body_length: minimum expected length of response body
- * @flags: TPM transmit flags
* @desc: command description used in the error message
*
* Return:
* * TPM_RC - A TPM error
*/
ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_buf *buf,
- size_t min_rsp_body_length, unsigned int flags,
- const char *desc)
+ size_t min_rsp_body_length, const char *desc)
{
const struct tpm_header *header = (struct tpm_header *)buf->data;
int err;
ssize_t len;
- len = tpm_transmit(chip, buf->data, PAGE_SIZE, flags);
+ len = tpm_transmit(chip, buf->data, PAGE_SIZE);
if (len < 0)
return len;
goto out;
memcpy(buf.data, cmd, buflen);
- rc = tpm_transmit_cmd(chip, &buf, 0, 0,
- "attempting to a send a command");
+ rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to a send a command");
tpm_buf_destroy(&buf);
out:
tpm_put_ops(chip);
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
mutex_lock(&chip->tpm_mutex);
- if (!tpm_chip_start(chip, 0)) {
+ if (!tpm_chip_start(chip)) {
tpm2_shutdown(chip, TPM2_SU_STATE);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
}
mutex_unlock(&chip->tpm_mutex);
} else {
tpm_buf_append(&tpm_buf, anti_replay, sizeof(anti_replay));
if (tpm_transmit_cmd(chip, &tpm_buf, READ_PUBEK_RESULT_MIN_BODY_SIZE,
- 0, "attempting to read the PUBEK"))
+ "attempting to read the PUBEK"))
goto out_buf;
out = (struct tpm_readpubek_out *)&tpm_buf.data[10];
extern const struct file_operations tpmrm_fops;
extern struct idr dev_nums_idr;
-ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz,
- unsigned int flags);
+ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz);
ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_buf *buf,
- size_t min_rsp_body_length, unsigned int flags,
- const char *desc);
+ size_t min_rsp_body_length, const char *desc);
int tpm_get_timeouts(struct tpm_chip *);
int tpm_auto_startup(struct tpm_chip *chip);
delay_msec * 1000);
};
-int tpm_chip_start(struct tpm_chip *chip, unsigned int flags);
-void tpm_chip_stop(struct tpm_chip *chip, unsigned int flags);
+int tpm_chip_start(struct tpm_chip *chip);
+void tpm_chip_stop(struct tpm_chip *chip);
struct tpm_chip *tpm_find_get_ops(struct tpm_chip *chip);
__must_check int tpm_try_get_ops(struct tpm_chip *chip);
void tpm_put_ops(struct tpm_chip *chip);
int tpm2_pcr_extend(struct tpm_chip *chip, u32 pcr_idx, u32 count,
struct tpm2_digest *digests);
int tpm2_get_random(struct tpm_chip *chip, u8 *dest, size_t max);
-void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 handle,
- unsigned int flags);
+void tpm2_flush_context(struct tpm_chip *chip, u32 handle);
int tpm2_seal_trusted(struct tpm_chip *chip,
struct trusted_key_payload *payload,
struct trusted_key_options *options);
tpm_buf_append_u16(&buf, TPM_ST_CLEAR);
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, "attempting to start the TPM");
+ rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to start the TPM");
tpm_buf_destroy(&buf);
return rc;
}
tpm_buf_append_u32(&buf, pcr_idx);
tpm_buf_append(&buf, hash, TPM_DIGEST_SIZE);
- rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE, 0, log_msg);
+ rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE, log_msg);
tpm_buf_destroy(&buf);
return rc;
}
tpm_buf_append_u32(&buf, 4);
tpm_buf_append_u32(&buf, subcap_id);
}
- rc = tpm_transmit_cmd(chip, &buf, min_cap_length, 0, desc);
+ rc = tpm_transmit_cmd(chip, &buf, min_cap_length, desc);
if (!rc)
*cap = *(cap_t *)&buf.data[TPM_HEADER_SIZE + 4];
tpm_buf_destroy(&buf);
do {
tpm_buf_append_u32(&buf, num_bytes);
- rc = tpm_transmit_cmd(chip, &buf, sizeof(out->rng_data_len), 0,
+ rc = tpm_transmit_cmd(chip, &buf, sizeof(out->rng_data_len),
"attempting get random");
if (rc)
goto out;
tpm_buf_append_u32(&buf, pcr_idx);
- rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE, 0,
+ rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE,
"attempting to read a pcr value");
if (rc)
goto out;
if (rc)
return rc;
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, "continue selftest");
+ rc = tpm_transmit_cmd(chip, &buf, 0, "continue selftest");
tpm_buf_destroy(&buf);
return rc;
}
return rc;
/* now do the actual savestate */
for (try = 0; try < TPM_RETRY; try++) {
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, NULL);
+ rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
/*
* If the TPM indicates that it is too busy to respond to
* this command then retry before giving up. It can take
tpm_buf_append(&buf, (const unsigned char *)pcr_select,
sizeof(pcr_select));
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, res_buf ?
+ rc = tpm_transmit_cmd(chip, &buf, 0, res_buf ?
"attempting to read a pcr value" : NULL);
if (rc == 0 && res_buf) {
out = (struct tpm2_pcr_read_out *)&buf.data[TPM_HEADER_SIZE];
}
}
- rc = tpm_transmit_cmd(chip, &buf, 0, 0,
- "attempting extend a PCR value");
+ rc = tpm_transmit_cmd(chip, &buf, 0, "attempting extend a PCR value");
tpm_buf_destroy(&buf);
err = tpm_transmit_cmd(chip, &buf,
offsetof(struct tpm2_get_random_out,
buffer),
- 0, "attempting get random");
+ "attempting get random");
if (err)
goto out;
}
/**
- * tpm2_flush_context_cmd() - execute a TPM2_FlushContext command
+ * tpm2_flush_context() - execute a TPM2_FlushContext command
* @chip: TPM chip to use
* @handle: context handle
- * @flags: tpm transmit flags - bitmap
- *
*/
-void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 handle,
- unsigned int flags)
+void tpm2_flush_context(struct tpm_chip *chip, u32 handle)
{
struct tpm_buf buf;
int rc;
tpm_buf_append_u32(&buf, handle);
- tpm_transmit_cmd(chip, &buf, 0, flags, "flushing context");
+ tpm_transmit_cmd(chip, &buf, 0, "flushing context");
tpm_buf_destroy(&buf);
}
goto out;
}
- rc = tpm_transmit_cmd(chip, &buf, 4, 0, "sealing data");
+ rc = tpm_transmit_cmd(chip, &buf, 4, "sealing data");
if (rc)
goto out;
* @payload: the key data in clear and encrypted form
* @options: authentication values and other options
* @blob_handle: returned blob handle
- * @flags: tpm transmit flags
*
* Return: 0 on success.
* -E2BIG on wrong payload size.
static int tpm2_load_cmd(struct tpm_chip *chip,
struct trusted_key_payload *payload,
struct trusted_key_options *options,
- u32 *blob_handle, unsigned int flags)
+ u32 *blob_handle)
{
struct tpm_buf buf;
unsigned int private_len;
goto out;
}
- rc = tpm_transmit_cmd(chip, &buf, 4, flags, "loading blob");
+ rc = tpm_transmit_cmd(chip, &buf, 4, "loading blob");
if (!rc)
*blob_handle = be32_to_cpup(
(__be32 *) &buf.data[TPM_HEADER_SIZE]);
* @payload: the key data in clear and encrypted form
* @options: authentication values and other options
* @blob_handle: blob handle
- * @flags: tpm_transmit_cmd flags
*
* Return: 0 on success
* -EPERM on tpm error status
static int tpm2_unseal_cmd(struct tpm_chip *chip,
struct trusted_key_payload *payload,
struct trusted_key_options *options,
- u32 blob_handle, unsigned int flags)
+ u32 blob_handle)
{
struct tpm_buf buf;
u16 data_len;
options->blobauth /* hmac */,
TPM_DIGEST_SIZE);
- rc = tpm_transmit_cmd(chip, &buf, 6, flags, "unsealing");
+ rc = tpm_transmit_cmd(chip, &buf, 6, "unsealing");
if (rc > 0)
rc = -EPERM;
u32 blob_handle;
int rc;
- rc = tpm2_load_cmd(chip, payload, options, &blob_handle, 0);
+ rc = tpm2_load_cmd(chip, payload, options, &blob_handle);
if (rc)
return rc;
- rc = tpm2_unseal_cmd(chip, payload, options, blob_handle, 0);
- tpm2_flush_context_cmd(chip, blob_handle, 0);
+ rc = tpm2_unseal_cmd(chip, payload, options, blob_handle);
+ tpm2_flush_context(chip, blob_handle);
return rc;
}
tpm_buf_append_u32(&buf, TPM2_CAP_TPM_PROPERTIES);
tpm_buf_append_u32(&buf, property_id);
tpm_buf_append_u32(&buf, 1);
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, NULL);
+ rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
if (!rc) {
out = (struct tpm2_get_cap_out *)
&buf.data[TPM_HEADER_SIZE];
if (rc)
return;
tpm_buf_append_u16(&buf, shutdown_type);
- tpm_transmit_cmd(chip, &buf, 0, 0, "stopping the TPM");
+ tpm_transmit_cmd(chip, &buf, 0, "stopping the TPM");
tpm_buf_destroy(&buf);
}
return rc;
tpm_buf_append_u8(&buf, full);
- rc = tpm_transmit_cmd(chip, &buf, 0, 0,
+ rc = tpm_transmit_cmd(chip, &buf, 0,
"attempting the self test");
tpm_buf_destroy(&buf);
tpm_buf_append_u32(&buf, TPM2_CAP_TPM_PROPERTIES);
tpm_buf_append_u32(&buf, TPM_PT_TOTAL_COMMANDS);
tpm_buf_append_u32(&buf, 1);
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, NULL);
+ rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
/* We ignore TPM return codes on purpose. */
if (rc >= 0) {
out = (struct tpm_header *)buf.data;
tpm_buf_append_u32(&buf, 0);
tpm_buf_append_u32(&buf, 1);
- rc = tpm_transmit_cmd(chip, &buf, 9, 0, "get tpm pcr allocation");
+ rc = tpm_transmit_cmd(chip, &buf, 9, "get tpm pcr allocation");
if (rc)
goto out;
tpm_buf_append_u32(&buf, TPM2_CC_FIRST);
tpm_buf_append_u32(&buf, nr_commands);
- rc = tpm_transmit_cmd(chip, &buf, 9 + 4 * nr_commands, 0, NULL);
+ rc = tpm_transmit_cmd(chip, &buf, 9 + 4 * nr_commands, NULL);
if (rc) {
tpm_buf_destroy(&buf);
goto out;
return rc;
tpm_buf_append_u16(&buf, TPM2_SU_CLEAR);
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, "attempting to start the TPM");
+ rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to start the TPM");
tpm_buf_destroy(&buf);
return rc;
for (i = 0; i < ARRAY_SIZE(space->session_tbl); i++) {
if (space->session_tbl[i])
- tpm2_flush_context_cmd(chip, space->session_tbl[i], 0);
+ tpm2_flush_context(chip, space->session_tbl[i]);
}
}
void tpm2_del_space(struct tpm_chip *chip, struct tpm_space *space)
{
mutex_lock(&chip->tpm_mutex);
- if (!tpm_chip_start(chip, 0)) {
+ if (!tpm_chip_start(chip)) {
tpm2_flush_sessions(chip, space);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
}
mutex_unlock(&chip->tpm_mutex);
kfree(space->context_buf);
body_size = sizeof(*ctx) + be16_to_cpu(ctx->blob_size);
tpm_buf_append(&tbuf, &buf[*offset], body_size);
- rc = tpm_transmit_cmd(chip, &tbuf, 4, 0, NULL);
+ rc = tpm_transmit_cmd(chip, &tbuf, 4, NULL);
if (rc < 0) {
dev_warn(&chip->dev, "%s: failed with a system error %d\n",
__func__, rc);
tpm_buf_append_u32(&tbuf, handle);
- rc = tpm_transmit_cmd(chip, &tbuf, 0, 0, NULL);
+ rc = tpm_transmit_cmd(chip, &tbuf, 0, NULL);
if (rc < 0) {
dev_warn(&chip->dev, "%s: failed with a system error %d\n",
__func__, rc);
for (i = 0; i < ARRAY_SIZE(space->context_tbl); i++)
if (space->context_tbl[i] && ~space->context_tbl[i])
- tpm2_flush_context_cmd(chip, space->context_tbl[i], 0);
+ tpm2_flush_context(chip, space->context_tbl[i]);
tpm2_flush_sessions(chip, space);
}
return 0;
out_no_slots:
- tpm2_flush_context_cmd(chip, phandle, 0);
+ tpm2_flush_context(chip, phandle);
dev_warn(&chip->dev, "%s: out of slots for 0x%08X\n", __func__,
phandle);
return -ENOMEM;
} else if (rc)
return rc;
- tpm2_flush_context_cmd(chip, space->context_tbl[i], 0);
+ tpm2_flush_context(chip, space->context_tbl[i]);
space->context_tbl[i] = ~0;
}
intmask &= ~TPM_GLOBAL_INT_ENABLE;
tpm_tis_write32(priv, TPM_INT_ENABLE(priv->locality), intmask);
- rc = tpm_chip_start(chip, 0);
+ rc = tpm_chip_start(chip);
if (rc)
goto out_err;
rc = tpm2_probe(chip);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
if (rc)
goto out_err;
proxy_dev->state |= STATE_DRIVER_COMMAND;
- rc = tpm_transmit_cmd(chip, &buf, 0, 0, "attempting to set locality");
+ rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to set locality");
proxy_dev->state &= ~STATE_DRIVER_COMMAND;