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| author | Marcel Holtmann <marcel@holtmann.org> | 2015-04-01 22:52:12 +0300 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2015-04-02 08:47:38 +0300 |
| commit | 6de50f9fdb60a8d4c1cd94556106200ab1592e2d (patch) | |
| tree | b8aa2d55597d3c824b1da703e6f2324a51c82ce7 /net/bluetooth | |
| parent | 0151e426b150db17992b49fa9ce96b79dace2aed (diff) | |
| download | linux-6de50f9fdb60a8d4c1cd94556106200ab1592e2d.tar.xz | |
Bluetooth: Export ECDH selftest result in debugfs
When ECDH 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/selftest.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/net/bluetooth/selftest.c b/net/bluetooth/selftest.c index 378f4064952c..dc688f13e496 100644 --- a/net/bluetooth/selftest.c +++ b/net/bluetooth/selftest.c @@ -21,6 +21,8 @@ SOFTWARE IS DISCLAIMED. */ +#include <linux/debugfs.h> + #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> @@ -154,6 +156,21 @@ static int __init test_ecdh_sample(const u8 priv_a[32], const u8 priv_b[32], return 0; } +static char test_ecdh_buffer[32]; + +static ssize_t test_ecdh_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + return simple_read_from_buffer(user_buf, count, ppos, test_ecdh_buffer, + strlen(test_ecdh_buffer)); +} + +static const struct file_operations test_ecdh_fops = { + .open = simple_open, + .read = test_ecdh_read, + .llseek = default_llseek, +}; + static int __init test_ecdh(void) { ktime_t calltime, delta, rettime; @@ -165,19 +182,19 @@ static int __init test_ecdh(void) err = test_ecdh_sample(priv_a_1, priv_b_1, pub_a_1, pub_b_1, dhkey_1); if (err) { BT_ERR("ECDH sample 1 failed"); - return err; + goto done; } err = test_ecdh_sample(priv_a_2, priv_b_2, pub_a_2, pub_b_2, dhkey_2); if (err) { BT_ERR("ECDH sample 2 failed"); - return err; + goto done; } err = test_ecdh_sample(priv_a_3, priv_a_3, pub_a_3, pub_a_3, dhkey_3); if (err) { BT_ERR("ECDH sample 3 failed"); - return err; + goto done; } rettime = ktime_get(); @@ -186,7 +203,17 @@ static int __init test_ecdh(void) BT_INFO("ECDH test passed in %llu usecs", duration); - return 0; +done: + if (!err) + snprintf(test_ecdh_buffer, sizeof(test_ecdh_buffer), + "PASS (%llu usecs)\n", duration); + else + snprintf(test_ecdh_buffer, sizeof(test_ecdh_buffer), "FAIL\n"); + + debugfs_create_file("selftest_ecdh", 0444, bt_debugfs, NULL, + &test_ecdh_fops); + + return err; } #else |