From patchwork Tue Sep 6 13:42:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Greenman, Gregory" X-Patchwork-Id: 603333 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B748CECAAD5 for ; Tue, 6 Sep 2022 14:11:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240966AbiIFOLE (ORCPT ); Tue, 6 Sep 2022 10:11:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59780 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241360AbiIFOJc (ORCPT ); Tue, 6 Sep 2022 10:09:32 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFB312018B for ; Tue, 6 Sep 2022 06:46:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1662472001; x=1694008001; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hoTdyMPRK8mYLBSLeWumzqGvsYvug2vZg1+TRcG7k6E=; b=ZEjby89k3jVu1/jgxTKyjTztf17hsqs2l/N2SOHyHiDVVNWS58MToh3U qlE+pNCNvayMRIFNWCm0ZQhURQVLckM2Q469EFitZjFAP/ea4kaqXhxij fTl4Fqdi7IGrY98C9ajobsEKxxW9584lIgSIAEIu8B4ixB7K7o2Wy6PlJ snYt9bdDqAcQI+LxWekv1Np0GR+PwsOhnF3ztKAPJg1vwOETwsvsyjoiu Aj6t8AoBE1+IbzUjmV44rrW5g3AGR/0pXG+OHkL/dLI18DR970hcfsB+1 5FBTvoXU1+c4gWHo/5ug1lFR+BxeRmSFXV07tUrK4vko6FeDqH0ELOngO w==; X-IronPort-AV: E=McAfee;i="6500,9779,10462"; a="276989089" X-IronPort-AV: E=Sophos;i="5.93,294,1654585200"; d="scan'208";a="276989089" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Sep 2022 06:45:03 -0700 X-IronPort-AV: E=Sophos;i="5.93,294,1654585200"; d="scan'208";a="942459999" Received: from ygueta-mobl2.ger.corp.intel.com (HELO ggreenma-mobl2.lan) ([10.249.82.178]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Sep 2022 06:45:01 -0700 From: gregory.greenman@intel.com To: kvalo@kernel.org, johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Naftali Goldstein , Gregory Greenman Subject: [PATCH 15/15] wifi: iwlwifi: mvm: d3: parse keys from wowlan info notification Date: Tue, 6 Sep 2022 16:42:19 +0300 Message-Id: <20220906161827.ca3fb23cab81.I0a9fe7729af4567b98813bc51bad13ee5512a0ae@changeid> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220906134219.365090-1-gregory.greenman@intel.com> References: <20220906134219.365090-1-gregory.greenman@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Naftali Goldstein This notification replaces the WOWLAN_GET_STATUSES command-and-response, so it's required to parse all the keys in the notification just like what happened when that command was used. Move around a few required static functions in order to avoid forward declarations. Signed-off-by: Naftali Goldstein Signed-off-by: Gregory Greenman --- drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 171 ++++++++++---------- 1 file changed, 88 insertions(+), 83 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c index d8a67f391ab9..919b1f478b4c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c @@ -1944,6 +1944,94 @@ static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, return true; } +static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status, + struct iwl_wowlan_gtk_status_v2 *data) +{ + BUILD_BUG_ON(sizeof(status->gtk.key) < sizeof(data->key)); + BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + + sizeof(data->tkip_mic_key) > + sizeof(status->gtk.key)); + + status->gtk.len = data->key_len; + status->gtk.flags = data->key_flags; + + memcpy(status->gtk.key, data->key, sizeof(data->key)); + + /* if it's as long as the TKIP encryption key, copy MIC key */ + if (status->gtk.len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) + memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, + data->tkip_mic_key, sizeof(data->tkip_mic_key)); +} + +static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status, + struct iwl_wowlan_gtk_status_v3 *data) +{ + /* The parts we need are identical in v2 and v3 */ +#define CHECK(_f) do { \ + BUILD_BUG_ON(offsetof(struct iwl_wowlan_gtk_status_v2, _f) != \ + offsetof(struct iwl_wowlan_gtk_status_v3, _f)); \ + BUILD_BUG_ON(offsetofend(struct iwl_wowlan_gtk_status_v2, _f) !=\ + offsetofend(struct iwl_wowlan_gtk_status_v3, _f)); \ +} while (0) + + CHECK(key); + CHECK(key_len); + CHECK(key_flags); + CHECK(tkip_mic_key); +#undef CHECK + + iwl_mvm_convert_gtk_v2(status, (void *)data); +} + +static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status, + struct iwl_wowlan_igtk_status *data) +{ + const u8 *ipn = data->ipn; + + BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); + + status->igtk.len = data->key_len; + status->igtk.flags = data->key_flags; + + memcpy(status->igtk.key, data->key, sizeof(data->key)); + + status->igtk.ipn = ((u64)ipn[5] << 0) | + ((u64)ipn[4] << 8) | + ((u64)ipn[3] << 16) | + ((u64)ipn[2] << 24) | + ((u64)ipn[1] << 32) | + ((u64)ipn[0] << 40); +} + +static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm, + struct iwl_wowlan_info_notif *data, + struct iwl_wowlan_status_data *status, + u32 len) +{ + u32 i; + + if (len < sizeof(*data)) { + IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); + status = NULL; + return; + } + + iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); + iwl_mvm_convert_gtk_v3(status, &data->gtk[0]); + iwl_mvm_convert_igtk(status, &data->igtk[0]); + + status->replay_ctr = le64_to_cpu(data->replay_ctr); + status->pattern_number = le16_to_cpu(data->pattern_number); + for (i = 0; i < IWL_MAX_TID_COUNT; i++) + status->qos_seq_ctr[i] = + le16_to_cpu(data->qos_seq_ctr[i]); + status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); + status->num_of_gtk_rekeys = + le32_to_cpu(data->num_of_gtk_rekeys); + status->received_beacons = le32_to_cpu(data->received_beacons); + status->tid_tear_down = data->tid_tear_down; +} + /* Occasionally, templates would be nice. This is one of those times ... */ #define iwl_mvm_parse_wowlan_status_common(_ver) \ static struct iwl_wowlan_status_data * \ @@ -2005,89 +2093,6 @@ iwl_mvm_parse_wowlan_status_common(v7) iwl_mvm_parse_wowlan_status_common(v9) iwl_mvm_parse_wowlan_status_common(v12) -static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm, - struct iwl_wowlan_info_notif *data, - struct iwl_wowlan_status_data *status, - u32 len) -{ - u32 i; - - if (len < sizeof(*data)) { - IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); - status = NULL; - return; - } - - status->replay_ctr = le64_to_cpu(data->replay_ctr); - status->pattern_number = le16_to_cpu(data->pattern_number); - for (i = 0; i < IWL_MAX_TID_COUNT; i++) - status->qos_seq_ctr[i] = - le16_to_cpu(data->qos_seq_ctr[i]); - status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); - status->num_of_gtk_rekeys = - le32_to_cpu(data->num_of_gtk_rekeys); - status->received_beacons = le32_to_cpu(data->received_beacons); -} - -static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status, - struct iwl_wowlan_gtk_status_v2 *data) -{ - BUILD_BUG_ON(sizeof(status->gtk.key) < sizeof(data->key)); - BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + - sizeof(data->tkip_mic_key) > - sizeof(status->gtk.key)); - - status->gtk.len = data->key_len; - status->gtk.flags = data->key_flags; - - memcpy(status->gtk.key, data->key, sizeof(data->key)); - - /* if it's as long as the TKIP encryption key, copy MIC key */ - if (status->gtk.len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) - memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, - data->tkip_mic_key, sizeof(data->tkip_mic_key)); -} - -static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status, - struct iwl_wowlan_gtk_status_v3 *data) -{ - /* The parts we need are identical in v2 and v3 */ -#define CHECK(_f) do { \ - BUILD_BUG_ON(offsetof(struct iwl_wowlan_gtk_status_v2, _f) != \ - offsetof(struct iwl_wowlan_gtk_status_v3, _f)); \ - BUILD_BUG_ON(offsetofend(struct iwl_wowlan_gtk_status_v2, _f) !=\ - offsetofend(struct iwl_wowlan_gtk_status_v3, _f)); \ -} while (0) - - CHECK(key); - CHECK(key_len); - CHECK(key_flags); - CHECK(tkip_mic_key); -#undef CHECK - - iwl_mvm_convert_gtk_v2(status, (void *)data); -} - -static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status, - struct iwl_wowlan_igtk_status *data) -{ - const u8 *ipn = data->ipn; - - BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); - - status->igtk.len = data->key_len; - status->igtk.flags = data->key_flags; - - memcpy(status->igtk.key, data->key, sizeof(data->key)); - - status->igtk.ipn = ((u64)ipn[5] << 0) | - ((u64)ipn[4] << 8) | - ((u64)ipn[3] << 16) | - ((u64)ipn[2] << 24) | - ((u64)ipn[1] << 32) | - ((u64)ipn[0] << 40); -} - static struct iwl_wowlan_status_data * iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id) {