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Commit 64dd374e authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Johan Hedberg
Browse files

Bluetooth: Export SMP selftest result in debugfs 



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: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 6de50f9f

net/bluetooth/smp.c

+34 −9
Original line number Diff line number Diff line
@@ -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)