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[PATCH] tpm: add debugging output
Signed-off-by: Kylene Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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parent
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commit
e234bc9704
@ -146,8 +146,12 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
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memcpy(data, cap_pcr, sizeof(cap_pcr));
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if ((len = tpm_transmit(chip, data, sizeof(data)))
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< CAP_PCR_RESULT_SIZE)
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return len;
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< CAP_PCR_RESULT_SIZE) {
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dev_err(&chip->pci_dev->dev, "A TPM error (%d) occurred "
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"attempting to determine the number of PCRS\n",
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be32_to_cpu(*((__be32 *) (data + 6))));
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return 0;
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}
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num_pcrs = be32_to_cpu(*((__be32 *) (data + 14)));
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@ -156,16 +160,20 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
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index = cpu_to_be32(i);
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memcpy(data + 10, &index, 4);
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if ((len = tpm_transmit(chip, data, sizeof(data)))
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< READ_PCR_RESULT_SIZE)
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return len;
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< READ_PCR_RESULT_SIZE){
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dev_err(&chip->pci_dev->dev, "A TPM error (%d) occurred"
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" attempting to read PCR %d of %d\n",
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be32_to_cpu(*((__be32 *) (data + 6))), i, num_pcrs);
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goto out;
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}
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str += sprintf(str, "PCR-%02d: ", i);
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for (j = 0; j < TPM_DIGEST_SIZE; j++)
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str += sprintf(str, "%02X ", *(data + 10 + j));
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str += sprintf(str, "\n");
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}
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out:
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return str - buf;
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}
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EXPORT_SYMBOL_GPL(tpm_show_pcrs);
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#define READ_PUBEK_RESULT_SIZE 314
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@ -197,8 +205,10 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
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if ((len = tpm_transmit(chip, data, READ_PUBEK_RESULT_SIZE)) <
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READ_PUBEK_RESULT_SIZE) {
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rc = len;
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goto out;
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dev_err(&chip->pci_dev->dev, "A TPM error (%d) occurred "
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"attempting to read the PUBEK\n",
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be32_to_cpu(*((__be32 *) (data + 6))));
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return 0;
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}
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/*
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@ -230,7 +240,6 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
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str += sprintf(str, "\n");
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}
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rc = str - buf;
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out:
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kfree(data);
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return rc;
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}
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