diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 138 |
1 files changed, 134 insertions, 4 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index e136475a34f6..776b24f54200 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -8,7 +8,7 @@ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 Intel Corporation + * Copyright(c) 2018 - 2019 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -31,7 +31,7 @@ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 Intel Corporation + * Copyright(c) 2018 - 2019 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -1188,6 +1188,111 @@ out: return ret ?: count; } +static int _iwl_dbgfs_inject_beacon_ie(struct iwl_mvm *mvm, char *bin, int len) +{ + struct ieee80211_vif *vif; + struct iwl_mvm_vif *mvmvif; + struct sk_buff *beacon; + struct ieee80211_tx_info *info; + struct iwl_mac_beacon_cmd beacon_cmd = {}; + u8 rate; + u16 flags; + int i; + + len /= 2; + + /* Element len should be represented by u8 */ + if (len >= U8_MAX) + return -EINVAL; + + if (!iwl_mvm_firmware_running(mvm)) + return -EIO; + + if (!iwl_mvm_has_new_tx_api(mvm) && + !fw_has_api(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) + return -EINVAL; + + rcu_read_lock(); + + for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { + vif = iwl_mvm_rcu_dereference_vif_id(mvm, i, true); + if (!vif) + continue; + + if (vif->type == NL80211_IFTYPE_AP) + break; + } + + if (i == NUM_MAC_INDEX_DRIVER || !vif) + goto out_err; + + mvm->hw->extra_beacon_tailroom = len; + + beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); + if (!beacon) + goto out_err; + + if (len && hex2bin(skb_put_zero(beacon, len), bin, len)) { + dev_kfree_skb(beacon); + goto out_err; + } + + mvm->beacon_inject_active = true; + + mvmvif = iwl_mvm_vif_from_mac80211(vif); + info = IEEE80211_SKB_CB(beacon); + rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); + flags = iwl_mvm_mac80211_idx_to_hwrate(rate); + + if (rate == IWL_FIRST_CCK_RATE) + flags |= IWL_MAC_BEACON_CCK; + + beacon_cmd.flags = cpu_to_le16(flags); + beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); + beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); + + iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, + &beacon_cmd.tim_size, + beacon->data, beacon->len); + + mutex_lock(&mvm->mutex); + iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, + sizeof(beacon_cmd)); + mutex_unlock(&mvm->mutex); + + dev_kfree_skb(beacon); + + rcu_read_unlock(); + return 0; + +out_err: + rcu_read_unlock(); + return -EINVAL; +} + +static ssize_t iwl_dbgfs_inject_beacon_ie_write(struct iwl_mvm *mvm, + char *buf, size_t count, + loff_t *ppos) +{ + int ret = _iwl_dbgfs_inject_beacon_ie(mvm, buf, count); + + mvm->hw->extra_beacon_tailroom = 0; + return ret ?: count; +} + +static ssize_t iwl_dbgfs_inject_beacon_ie_restore_write(struct iwl_mvm *mvm, + char *buf, + size_t count, + loff_t *ppos) +{ + int ret = _iwl_dbgfs_inject_beacon_ie(mvm, NULL, 0); + + mvm->hw->extra_beacon_tailroom = 0; + mvm->beacon_inject_active = false; + return ret ?: count; +} + static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -1684,6 +1789,7 @@ iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, struct iwl_mvm_sniffer_apply { struct iwl_mvm *mvm; + u8 *bssid; u16 aid; }; @@ -1693,6 +1799,8 @@ static bool iwl_mvm_sniffer_apply(struct iwl_notif_wait_data *notif_data, struct iwl_mvm_sniffer_apply *apply = data; apply->mvm->cur_aid = cpu_to_le16(apply->aid); + memcpy(apply->mvm->cur_bssid, apply->bssid, + sizeof(apply->mvm->cur_bssid)); return true; } @@ -1725,6 +1833,7 @@ iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, he_mon_cmd.aid = cpu_to_le16(aid); apply.aid = aid; + apply.bssid = (void *)he_mon_cmd.bssid; mutex_lock(&mvm->mutex); @@ -1754,6 +1863,23 @@ iwl_dbgfs_he_sniffer_params_write(struct iwl_mvm *mvm, char *buf, } static ssize_t +iwl_dbgfs_he_sniffer_params_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + u8 buf[32]; + int len; + + len = scnprintf(buf, sizeof(buf), + "%d %02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n", + le16_to_cpu(mvm->cur_aid), mvm->cur_bssid[0], + mvm->cur_bssid[1], mvm->cur_bssid[2], mvm->cur_bssid[3], + mvm->cur_bssid[4], mvm->cur_bssid[5]); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -1806,6 +1932,8 @@ MVM_DEBUGFS_WRITE_FILE_OPS(max_amsdu_len, 8); MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl, (IWL_RSS_INDIRECTION_TABLE_SIZE * 2)); MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512); +MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512); +MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512); MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids); @@ -1821,7 +1949,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile); #endif -MVM_DEBUGFS_WRITE_FILE_OPS(he_sniffer_params, 32); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32); static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -2007,10 +2135,12 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, 0200); MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200); + MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200); + MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200); #ifdef CONFIG_ACPI MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, 0400); #endif - MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0200); + MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600); if (!debugfs_create_bool("enable_scan_iteration_notif", 0600, |