diff options
Diffstat (limited to 'net/bluetooth/hci_debugfs.c')
| -rw-r--r-- | net/bluetooth/hci_debugfs.c | 317 |
1 files changed, 268 insertions, 49 deletions
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c index 6b1314c738b8..3f401ec5bb0c 100644 --- a/net/bluetooth/hci_debugfs.c +++ b/net/bluetooth/hci_debugfs.c @@ -27,6 +27,7 @@ #include <net/bluetooth/hci_core.h> #include "smp.h" +#include "hci_request.h" #include "hci_debugfs.h" #define DEFINE_QUIRK_ATTRIBUTE(__name, __quirk) \ @@ -125,7 +126,7 @@ static int device_list_show(struct seq_file *f, void *ptr) struct bdaddr_list *b; hci_dev_lock(hdev); - list_for_each_entry(b, &hdev->whitelist, list) + list_for_each_entry(b, &hdev->accept_list, list) seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); list_for_each_entry(p, &hdev->le_conn_params, list) { seq_printf(f, "%pMR (type %u) %u\n", &p->addr, p->addr_type, @@ -144,7 +145,7 @@ static int blacklist_show(struct seq_file *f, void *p) struct bdaddr_list *b; hci_dev_lock(hdev); - list_for_each_entry(b, &hdev->blacklist, list) + list_for_each_entry(b, &hdev->reject_list, list) seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); hci_dev_unlock(hdev); @@ -237,8 +238,8 @@ static int conn_info_min_age_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get, - conn_info_min_age_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get, + conn_info_min_age_set, "%llu\n"); static int conn_info_max_age_set(void *data, u64 val) { @@ -265,8 +266,8 @@ static int conn_info_max_age_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get, - conn_info_max_age_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get, + conn_info_max_age_set, "%llu\n"); static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -274,7 +275,7 @@ static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf, struct hci_dev *hdev = file->private_data; char buf[3]; - buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y': 'N'; + buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y' : 'N'; buf[1] = '\n'; buf[2] = '\0'; return simple_read_from_buffer(user_buf, count, ppos, buf, 2); @@ -292,7 +293,7 @@ static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf, struct hci_dev *hdev = file->private_data; char buf[3]; - buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y': 'N'; + buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y' : 'N'; buf[1] = '\n'; buf[2] = '\0'; return simple_read_from_buffer(user_buf, count, ppos, buf, 2); @@ -419,8 +420,8 @@ static int voice_setting_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get, - NULL, "0x%4.4llx\n"); +DEFINE_DEBUGFS_ATTRIBUTE(voice_setting_fops, voice_setting_get, + NULL, "0x%4.4llx\n"); static ssize_t ssp_debug_mode_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -428,7 +429,7 @@ static ssize_t ssp_debug_mode_read(struct file *file, char __user *user_buf, struct hci_dev *hdev = file->private_data; char buf[3]; - buf[0] = hdev->ssp_debug_mode ? 'Y': 'N'; + buf[0] = hdev->ssp_debug_mode ? 'Y' : 'N'; buf[1] = '\n'; buf[2] = '\0'; return simple_read_from_buffer(user_buf, count, ppos, buf, 2); @@ -476,9 +477,9 @@ static int min_encrypt_key_size_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(min_encrypt_key_size_fops, - min_encrypt_key_size_get, - min_encrypt_key_size_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(min_encrypt_key_size_fops, + min_encrypt_key_size_get, + min_encrypt_key_size_set, "%llu\n"); static int auto_accept_delay_get(void *data, u64 *val) { @@ -491,8 +492,47 @@ static int auto_accept_delay_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, - auto_accept_delay_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, + auto_accept_delay_set, "%llu\n"); + +static ssize_t force_bredr_smp_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + char buf[3]; + + buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_BREDR_SMP) ? 'Y' : 'N'; + buf[1] = '\n'; + buf[2] = '\0'; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t force_bredr_smp_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + bool enable; + int err; + + err = kstrtobool_from_user(user_buf, count, &enable); + if (err) + return err; + + err = smp_force_bredr(hdev, enable); + if (err) + return err; + + return count; +} + +static const struct file_operations force_bredr_smp_fops = { + .open = simple_open, + .read = force_bredr_smp_read, + .write = force_bredr_smp_write, + .llseek = default_llseek, +}; static int idle_timeout_set(void *data, u64 val) { @@ -519,8 +559,8 @@ static int idle_timeout_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get, - idle_timeout_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(idle_timeout_fops, idle_timeout_get, + idle_timeout_set, "%llu\n"); static int sniff_min_interval_set(void *data, u64 val) { @@ -547,8 +587,8 @@ static int sniff_min_interval_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get, - sniff_min_interval_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get, + sniff_min_interval_set, "%llu\n"); static int sniff_max_interval_set(void *data, u64 val) { @@ -575,8 +615,8 @@ static int sniff_max_interval_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get, - sniff_max_interval_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get, + sniff_max_interval_set, "%llu\n"); void hci_debugfs_create_bredr(struct hci_dev *hdev) { @@ -589,6 +629,17 @@ void hci_debugfs_create_bredr(struct hci_dev *hdev) debugfs_create_file("voice_setting", 0444, hdev->debugfs, hdev, &voice_setting_fops); + /* If the controller does not support BR/EDR Secure Connections + * feature, then the BR/EDR SMP channel shall not be present. + * + * To test this with Bluetooth 4.0 controllers, create a debugfs + * switch that allows forcing BR/EDR SMP support and accepting + * cross-transport pairing on non-AES encrypted connections. + */ + if (!lmp_sc_capable(hdev)) + debugfs_create_file("force_bredr_smp", 0644, hdev->debugfs, + hdev, &force_bredr_smp_fops); + if (lmp_ssp_capable(hdev)) { debugfs_create_file("ssp_debug_mode", 0444, hdev->debugfs, hdev, &ssp_debug_mode_fops); @@ -656,8 +707,8 @@ static int rpa_timeout_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get, - rpa_timeout_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get, + rpa_timeout_set, "%llu\n"); static int random_address_show(struct seq_file *f, void *p) { @@ -692,7 +743,7 @@ static ssize_t force_static_address_read(struct file *file, struct hci_dev *hdev = file->private_data; char buf[3]; - buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ? 'Y': 'N'; + buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ? 'Y' : 'N'; buf[1] = '\n'; buf[2] = '\0'; return simple_read_from_buffer(user_buf, count, ppos, buf, 2); @@ -734,7 +785,7 @@ static int white_list_show(struct seq_file *f, void *ptr) struct bdaddr_list *b; hci_dev_lock(hdev); - list_for_each_entry(b, &hdev->le_white_list, list) + list_for_each_entry(b, &hdev->le_accept_list, list) seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); hci_dev_unlock(hdev); @@ -819,8 +870,8 @@ static int conn_min_interval_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get, - conn_min_interval_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get, + conn_min_interval_set, "%llu\n"); static int conn_max_interval_set(void *data, u64 val) { @@ -847,8 +898,8 @@ static int conn_max_interval_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get, - conn_max_interval_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get, + conn_max_interval_set, "%llu\n"); static int conn_latency_set(void *data, u64 val) { @@ -875,8 +926,8 @@ static int conn_latency_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(conn_latency_fops, conn_latency_get, - conn_latency_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(conn_latency_fops, conn_latency_get, + conn_latency_set, "%llu\n"); static int supervision_timeout_set(void *data, u64 val) { @@ -903,8 +954,8 @@ static int supervision_timeout_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get, - supervision_timeout_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get, + supervision_timeout_set, "%llu\n"); static int adv_channel_map_set(void *data, u64 val) { @@ -931,8 +982,8 @@ static int adv_channel_map_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get, - adv_channel_map_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get, + adv_channel_map_set, "%llu\n"); static int adv_min_interval_set(void *data, u64 val) { @@ -959,8 +1010,8 @@ static int adv_min_interval_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get, - adv_min_interval_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get, + adv_min_interval_set, "%llu\n"); static int adv_max_interval_set(void *data, u64 val) { @@ -987,8 +1038,8 @@ static int adv_max_interval_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get, - adv_max_interval_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get, + adv_max_interval_set, "%llu\n"); static int min_key_size_set(void *data, u64 val) { @@ -1015,8 +1066,8 @@ static int min_key_size_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(min_key_size_fops, min_key_size_get, - min_key_size_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(min_key_size_fops, min_key_size_get, + min_key_size_set, "%llu\n"); static int max_key_size_set(void *data, u64 val) { @@ -1043,8 +1094,8 @@ static int max_key_size_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(max_key_size_fops, max_key_size_get, - max_key_size_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(max_key_size_fops, max_key_size_get, + max_key_size_set, "%llu\n"); static int auth_payload_timeout_set(void *data, u64 val) { @@ -1071,9 +1122,53 @@ static int auth_payload_timeout_get(void *data, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(auth_payload_timeout_fops, - auth_payload_timeout_get, - auth_payload_timeout_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(auth_payload_timeout_fops, + auth_payload_timeout_get, + auth_payload_timeout_set, "%llu\n"); + +static ssize_t force_no_mitm_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + char buf[3]; + + buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM) ? 'Y' : 'N'; + buf[1] = '\n'; + buf[2] = '\0'; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t force_no_mitm_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + char buf[32]; + size_t buf_size = min(count, (sizeof(buf) - 1)); + bool enable; + + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + + buf[buf_size] = '\0'; + if (strtobool(buf, &enable)) + return -EINVAL; + + if (enable == hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM)) + return -EALREADY; + + hci_dev_change_flag(hdev, HCI_FORCE_NO_MITM); + + return count; +} + +static const struct file_operations force_no_mitm_fops = { + .open = simple_open, + .read = force_no_mitm_read, + .write = force_no_mitm_write, + .llseek = default_llseek, +}; DEFINE_QUIRK_ATTRIBUTE(quirk_strict_duplicate_filter, HCI_QUIRK_STRICT_DUPLICATE_FILTER); @@ -1101,7 +1196,7 @@ void hci_debugfs_create_le(struct hci_dev *hdev) &force_static_address_fops); debugfs_create_u8("white_list_size", 0444, hdev->debugfs, - &hdev->le_white_list_size); + &hdev->le_accept_list_size); debugfs_create_file("white_list", 0444, hdev->debugfs, hdev, &white_list_fops); debugfs_create_u8("resolv_list_size", 0444, hdev->debugfs, @@ -1134,6 +1229,8 @@ void hci_debugfs_create_le(struct hci_dev *hdev) &max_key_size_fops); debugfs_create_file("auth_payload_timeout", 0644, hdev->debugfs, hdev, &auth_payload_timeout_fops); + debugfs_create_file("force_no_mitm", 0644, hdev->debugfs, hdev, + &force_no_mitm_fops); debugfs_create_file("quirk_strict_duplicate_filter", 0644, hdev->debugfs, hdev, @@ -1148,9 +1245,131 @@ void hci_debugfs_create_conn(struct hci_conn *conn) struct hci_dev *hdev = conn->hdev; char name[6]; - if (IS_ERR_OR_NULL(hdev->debugfs)) + if (IS_ERR_OR_NULL(hdev->debugfs) || conn->debugfs) return; snprintf(name, sizeof(name), "%u", conn->handle); conn->debugfs = debugfs_create_dir(name, hdev->debugfs); } + +static ssize_t dut_mode_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + char buf[3]; + + buf[0] = hci_dev_test_flag(hdev, HCI_DUT_MODE) ? 'Y' : 'N'; + buf[1] = '\n'; + buf[2] = '\0'; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + struct sk_buff *skb; + bool enable; + int err; + + if (!test_bit(HCI_UP, &hdev->flags)) + return -ENETDOWN; + + err = kstrtobool_from_user(user_buf, count, &enable); + if (err) + return err; + + if (enable == hci_dev_test_flag(hdev, HCI_DUT_MODE)) + return -EALREADY; + + hci_req_sync_lock(hdev); + if (enable) + skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL, + HCI_CMD_TIMEOUT); + else + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, + HCI_CMD_TIMEOUT); + hci_req_sync_unlock(hdev); + + if (IS_ERR(skb)) + return PTR_ERR(skb); + + kfree_skb(skb); + + hci_dev_change_flag(hdev, HCI_DUT_MODE); + + return count; +} + +static const struct file_operations dut_mode_fops = { + .open = simple_open, + .read = dut_mode_read, + .write = dut_mode_write, + .llseek = default_llseek, +}; + +static ssize_t vendor_diag_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + char buf[3]; + + buf[0] = hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) ? 'Y' : 'N'; + buf[1] = '\n'; + buf[2] = '\0'; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + bool enable; + int err; + + err = kstrtobool_from_user(user_buf, count, &enable); + if (err) + return err; + + /* When the diagnostic flags are not persistent and the transport + * is not active or in user channel operation, then there is no need + * for the vendor callback. Instead just store the desired value and + * the setting will be programmed when the controller gets powered on. + */ + if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) && + (!test_bit(HCI_RUNNING, &hdev->flags) || + hci_dev_test_flag(hdev, HCI_USER_CHANNEL))) + goto done; + + hci_req_sync_lock(hdev); + err = hdev->set_diag(hdev, enable); + hci_req_sync_unlock(hdev); + + if (err < 0) + return err; + +done: + if (enable) + hci_dev_set_flag(hdev, HCI_VENDOR_DIAG); + else + hci_dev_clear_flag(hdev, HCI_VENDOR_DIAG); + + return count; +} + +static const struct file_operations vendor_diag_fops = { + .open = simple_open, + .read = vendor_diag_read, + .write = vendor_diag_write, + .llseek = default_llseek, +}; + +void hci_debugfs_create_basic(struct hci_dev *hdev) +{ + debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev, + &dut_mode_fops); + + if (hdev->set_diag) + debugfs_create_file("vendor_diag", 0644, hdev->debugfs, hdev, + &vendor_diag_fops); +} |