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authorMarcel Holtmann <marcel@holtmann.org>2015-04-01 12:52:13 -0700
committerJohan Hedberg <johan.hedberg@intel.com>2015-04-02 08:47:40 +0300
commit64dd374eac154f747623b256c59ecaf5affba724 (patch)
treefda701a6de51eaf59f5433d85173bb0543cbc40c /net/bluetooth
parent6de50f9fdb60a8d4c1cd94556106200ab1592e2d (diff)
downloadlinux-64dd374eac154f747623b256c59ecaf5affba724.tar.bz2
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: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/smp.c43
1 files changed, 34 insertions, 9 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 1910c5806974..1ab3dc9c8f99 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -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)