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| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2010-11-24 02:54:16 +0300 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-11-29 00:55:22 +0300 |
| commit | c749ba912e87ccebd674ae24b97462176c63732e (patch) | |
| tree | 72dff433660102d7eba7186f35bbd2aab21b1b6a /drivers/char/tpm/tpm.c | |
| parent | a0e39349d80d8b5deeb264fb190bd064f7063252 (diff) | |
| download | linux-c749ba912e87ccebd674ae24b97462176c63732e.tar.xz | |
key: add tpm_send command
Add internal kernel tpm_send() command used to seal/unseal keys.
Changelog:
- replaced module_put in tpm_send() with new tpm_chip_put() wrapper
(suggested by David Howells)
- Make tpm_send() cmd argument a 'void *' (suggested by David Howells)
Signed-off-by: David Safford <safford@watson.ibm.com>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'drivers/char/tpm/tpm.c')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 26c09f3b4a74..068bac858b4a 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -780,6 +780,22 @@ int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash) } EXPORT_SYMBOL_GPL(tpm_pcr_extend); +int tpm_send(u32 chip_num, void *cmd, size_t buflen) +{ + struct tpm_chip *chip; + int rc; + + chip = tpm_chip_find_get(chip_num); + if (chip == NULL) + return -ENODEV; + + rc = transmit_cmd(chip, cmd, buflen, "attempting tpm_cmd"); + + tpm_chip_put(chip); + return rc; +} +EXPORT_SYMBOL_GPL(tpm_send); + ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, char *buf) { |