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Bluetooth: Export SMP selftest result in debugfs

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When SMP selftest is enabled, then besides printing the result into the
kernel message buffer, also create a debugfs file that allows retrieving
the same information.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-04-01 12:52:13 -07:00 committed by Johan Hedberg
parent 6de50f9fdb
commit 64dd374eac
1 changed files with 34 additions and 9 deletions
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43
net/bluetooth/smp.c
View file

@ -3549,6 +3549,21 @@ static int __init test_h6(struct crypto_hash *tfm_cmac)
return 0;
}
static char test_smp_buffer[32];
static ssize_t test_smp_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
return simple_read_from_buffer(user_buf, count, ppos, test_smp_buffer,
strlen(test_smp_buffer));
}
static const struct file_operations test_smp_fops = {
.open = simple_open,
.read = test_smp_read,
.llseek = default_llseek,
};
static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
struct crypto_hash *tfm_cmac)
{
@ -3561,49 +3576,49 @@ static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
err = test_ah(tfm_aes);
if (err) {
BT_ERR("smp_ah test failed");
return err;
goto done;
}
err = test_c1(tfm_aes);
if (err) {
BT_ERR("smp_c1 test failed");
return err;
goto done;
}
err = test_s1(tfm_aes);
if (err) {
BT_ERR("smp_s1 test failed");
return err;
goto done;
}
err = test_f4(tfm_cmac);
if (err) {
BT_ERR("smp_f4 test failed");
return err;
goto done;
}
err = test_f5(tfm_cmac);
if (err) {
BT_ERR("smp_f5 test failed");
return err;
goto done;
}
err = test_f6(tfm_cmac);
if (err) {
BT_ERR("smp_f6 test failed");
return err;
goto done;
}
err = test_g2(tfm_cmac);
if (err) {
BT_ERR("smp_g2 test failed");
return err;
goto done;
}
err = test_h6(tfm_cmac);
if (err) {
BT_ERR("smp_h6 test failed");
return err;
goto done;
}
rettime = ktime_get();
@ -3612,7 +3627,17 @@ static int __init run_selftests(struct crypto_blkcipher *tfm_aes,
BT_INFO("SMP test passed in %llu usecs", duration);
return 0;
done:
if (!err)
snprintf(test_smp_buffer, sizeof(test_smp_buffer),
"PASS (%llu usecs)\n", duration);
else
snprintf(test_smp_buffer, sizeof(test_smp_buffer), "FAIL\n");
debugfs_create_file("selftest_smp", 0444, bt_debugfs, NULL,
&test_smp_fops);
return err;
}
int __init bt_selftest_smp(void)