From patchwork Sun Jan 30 17:54:15 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gnedt X-Patchwork-Id: 517971 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p0UNUCPx007293 for ; Sun, 30 Jan 2011 23:30:56 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752851Ab1A3STf (ORCPT ); Sun, 30 Jan 2011 13:19:35 -0500 Received: from mail.platinumzone24.at ([88.198.159.93]:33193 "EHLO mail.platinumzone24.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752522Ab1A3STd (ORCPT ); Sun, 30 Jan 2011 13:19:33 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.platinumzone24.at (Postfix) with ESMTP id B18B2850058; Sun, 30 Jan 2011 18:54:22 +0100 (CET) X-Virus-Scanned: amavisd-new at platinumzone24.at Received: from mail.platinumzone24.at ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KdYbWfKr965r; Sun, 30 Jan 2011 18:54:16 +0100 (CET) Received: from [192.168.10.2] (212-183-124-82.adsl.highway.telekom.at [212.183.124.82]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: david.gnedt@platinumzone24.at) by mail.platinumzone24.at (Postfix) with ESMTP id 340A1850056; Sun, 30 Jan 2011 18:54:16 +0100 (CET) Message-ID: <4D45A5C7.8000000@davizone.at> Date: Sun, 30 Jan 2011 18:54:15 +0100 From: David Gnedt User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Thunderbird/3.1.7 MIME-Version: 1.0 To: "John W. Linville" CC: linux-wireless@vger.kernel.org, Kalle Valo , Grazvydas Ignotas , "Denis 'GNUtoo' Carikli" Subject: [PATCH 08/18] wl1251: implement hardware ARP filtering Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Sun, 30 Jan 2011 23:30:56 +0000 (UTC) diff --git a/drivers/net/wireless/wl1251/acx.c b/drivers/net/wireless/wl1251/acx.c index d43695a..0a1c22a 100644 --- a/drivers/net/wireless/wl1251/acx.c +++ b/drivers/net/wireless/wl1251/acx.c @@ -1066,6 +1066,37 @@ out: return ret; } +int wl1251_acx_arp_ip_filter(struct wl1251 *wl, bool enable, __be32 address) +{ + struct wl1251_acx_arp_filter *acx; + int ret; + + wl1251_debug(DEBUG_ACX, "acx arp ip filter, enable: %d", enable); + + acx = kzalloc(sizeof(*acx), GFP_KERNEL); + if (!acx) { + ret = -ENOMEM; + goto out; + } + + acx->version = ACX_IPV4_VERSION; + acx->enable = enable; + + if (enable == true) + memcpy(acx->address, &address, ACX_IPV4_ADDR_SIZE); + + ret = wl1251_cmd_configure(wl, ACX_ARP_IP_FILTER, + acx, sizeof(*acx)); + if (ret < 0) { + wl1251_warning("failed to set arp ip filter: %d", ret); + goto out; + } + +out: + kfree(acx); + return ret; +} + int wl1251_acx_ac_cfg(struct wl1251 *wl, u8 ac, u8 cw_min, u16 cw_max, u8 aifs, u16 txop) { diff --git a/drivers/net/wireless/wl1251/acx.h b/drivers/net/wireless/wl1251/acx.h index 99ea80e..9958676 100644 --- a/drivers/net/wireless/wl1251/acx.h +++ b/drivers/net/wireless/wl1251/acx.h @@ -1233,6 +1233,20 @@ struct wl1251_acx_bet_enable { u8 padding[2]; } __packed; +#define ACX_IPV4_VERSION 4 +#define ACX_IPV6_VERSION 6 +#define ACX_IPV4_ADDR_SIZE 4 +struct wl1251_acx_arp_filter { + struct acx_header header; + u8 version; /* The IP version: 4 - IPv4, 6 - IPv6.*/ + u8 enable; /* 1 - ARP filtering is enabled, 0 - disabled */ + u8 padding[2]; + u8 address[16]; /* The IP address used to filter ARP packets. + ARP packets that do not match this address are + dropped. When the IP Version is 4, the last 12 + bytes of the the address are ignored. */ +} __packed; + struct wl1251_acx_ac_cfg { struct acx_header header; @@ -1475,6 +1489,7 @@ int wl1251_acx_mem_cfg(struct wl1251 *wl); int wl1251_acx_wr_tbtt_and_dtim(struct wl1251 *wl, u16 tbtt, u8 dtim); int wl1251_acx_bet_enable(struct wl1251 *wl, enum wl1251_acx_bet_mode mode, u8 max_consecutive); +int wl1251_acx_arp_ip_filter(struct wl1251 *wl, bool enable, __be32 address); int wl1251_acx_ac_cfg(struct wl1251 *wl, u8 ac, u8 cw_min, u16 cw_max, u8 aifs, u16 txop); int wl1251_acx_tid_cfg(struct wl1251 *wl, u8 queue, diff --git a/drivers/net/wireless/wl1251/main.c b/drivers/net/wireless/wl1251/main.c index c0a7fd5..387878f 100644 --- a/drivers/net/wireless/wl1251/main.c +++ b/drivers/net/wireless/wl1251/main.c @@ -1051,6 +1051,19 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, } } + if (changed & BSS_CHANGED_ARP_FILTER) { + __be32 addr = bss_conf->arp_addr_list[0]; + WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS); + + if (bss_conf->arp_addr_cnt == 1 && bss_conf->arp_filter_enabled) + ret = wl1251_acx_arp_ip_filter(wl, true, addr); + else + ret = wl1251_acx_arp_ip_filter(wl, false, addr); + + if (ret < 0) + goto out_sleep; + } + if (changed & BSS_CHANGED_BEACON) { beacon = ieee80211_beacon_get(hw, vif); ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data,