---

yaml --- r: 225320 b: refs/heads/master c: c531277 h: refs/heads/master v: v3
git-mirror · Dec 15, 2010 · 07dd136 · 07dd136
1 parent 8c90ed7
commit 07dd136
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Showing 8 changed files with 94 additions and 9 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b69eb80bf7a6922fef8056d42b06124a7de31501
+refs/heads/master: c5312772156bb5f9b2e95e4c91526d578426a069
diff --git a/trunk/drivers/net/wireless/wl12xx/acx.c b/trunk/drivers/net/wireless/wl12xx/acx.c
@@ -1041,7 +1041,7 @@ int wl1271_acx_bet_enable(struct wl1271 *wl, bool enable)
 	return ret;
 }
 
-int wl1271_acx_arp_ip_filter(struct wl1271 *wl, bool enable, __be32 address)
+int wl1271_acx_arp_ip_filter(struct wl1271 *wl, u8 enable, __be32 address)
 {
 	struct wl1271_acx_arp_filter *acx;
 	int ret;
@@ -1057,7 +1057,7 @@ int wl1271_acx_arp_ip_filter(struct wl1271 *wl, bool enable, __be32 address)
 	acx->version = ACX_IPV4_VERSION;
 	acx->enable = enable;
 
-	if (enable == true)
+	if (enable)
 		memcpy(acx->address, &address, ACX_IPV4_ADDR_SIZE);
 
 	ret = wl1271_cmd_configure(wl, ACX_ARP_IP_FILTER,

diff --git a/trunk/drivers/net/wireless/wl12xx/acx.h b/trunk/drivers/net/wireless/wl12xx/acx.h
@@ -868,10 +868,15 @@ struct wl1271_acx_bet_enable {
 #define ACX_IPV4_VERSION 4
 #define ACX_IPV6_VERSION 6
 #define ACX_IPV4_ADDR_SIZE 4
+
+/* bitmap of enabled arp_filter features */
+#define ACX_ARP_FILTER_ARP_FILTERING	BIT(0)
+#define ACX_ARP_FILTER_AUTO_ARP		BIT(1)
+
 struct wl1271_acx_arp_filter {
 	struct acx_header header;
 	u8 version;         /* ACX_IPV4_VERSION, ACX_IPV6_VERSION */
-	u8 enable;          /* 1 to enable ARP filtering, 0 to disable */
+	u8 enable;          /* bitmap of enabled ARP filtering features */
 	u8 padding[2];
 	u8 address[16];     /* The configured device IP address - all ARP
 			       requests directed to this IP address will pass
@@ -1168,7 +1173,7 @@ int wl1271_acx_init_mem_config(struct wl1271 *wl);
 int wl1271_acx_init_rx_interrupt(struct wl1271 *wl);
 int wl1271_acx_smart_reflex(struct wl1271 *wl);
 int wl1271_acx_bet_enable(struct wl1271 *wl, bool enable);
-int wl1271_acx_arp_ip_filter(struct wl1271 *wl, bool enable, __be32 address);
+int wl1271_acx_arp_ip_filter(struct wl1271 *wl, u8 enable, __be32 address);
 int wl1271_acx_pm_config(struct wl1271 *wl);
 int wl1271_acx_keep_alive_mode(struct wl1271 *wl, bool enable);
 int wl1271_acx_keep_alive_config(struct wl1271 *wl, u8 index, u8 tpl_valid);

diff --git a/trunk/drivers/net/wireless/wl12xx/cmd.c b/trunk/drivers/net/wireless/wl12xx/cmd.c
@@ -639,6 +639,47 @@ struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
 	return skb;
 }
 
+int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, __be32 ip_addr)
+{
+	int ret;
+	struct wl12xx_arp_rsp_template tmpl;
+	struct ieee80211_hdr_3addr *hdr;
+	struct arphdr *arp_hdr;
+
+	memset(&tmpl, 0, sizeof(tmpl));
+
+	/* mac80211 header */
+	hdr = &tmpl.hdr;
+	hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
+					 IEEE80211_STYPE_DATA |
+					 IEEE80211_FCTL_TODS);
+	memcpy(hdr->addr1, wl->vif->bss_conf.bssid, ETH_ALEN);
+	memcpy(hdr->addr2, wl->vif->addr, ETH_ALEN);
+	memset(hdr->addr3, 0xff, ETH_ALEN);
+
+	/* llc layer */
+	memcpy(tmpl.llc_hdr, rfc1042_header, sizeof(rfc1042_header));
+	tmpl.llc_type = htons(ETH_P_ARP);
+
+	/* arp header */
+	arp_hdr = &tmpl.arp_hdr;
+	arp_hdr->ar_hrd = htons(ARPHRD_ETHER);
+	arp_hdr->ar_pro = htons(ETH_P_IP);
+	arp_hdr->ar_hln = ETH_ALEN;
+	arp_hdr->ar_pln = 4;
+	arp_hdr->ar_op = htons(ARPOP_REPLY);
+
+	/* arp payload */
+	memcpy(tmpl.sender_hw, wl->vif->addr, ETH_ALEN);
+	tmpl.sender_ip = ip_addr;
+
+	ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP,
+				      &tmpl, sizeof(tmpl), 0,
+				      wl->basic_rate);
+
+	return ret;
+}
+
 int wl1271_build_qos_null_data(struct wl1271 *wl)
 {
 	struct ieee80211_qos_hdr template;

diff --git a/trunk/drivers/net/wireless/wl12xx/cmd.h b/trunk/drivers/net/wireless/wl12xx/cmd.h
@@ -51,6 +51,7 @@ int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 			       const u8 *ie, size_t ie_len, u8 band);
 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
 					      struct sk_buff *skb);
+int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, __be32 ip_addr);
 int wl1271_build_qos_null_data(struct wl1271 *wl);
 int wl1271_cmd_build_klv_null_data(struct wl1271 *wl);
 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id);
@@ -124,6 +125,7 @@ enum cmd_templ {
 	CMD_TEMPL_CTS,           /*
 				  * For CTS-to-self (FastCTS) mechanism
 				  * for BT/WLAN coexistence (SoftGemini). */
+	CMD_TEMPL_ARP_RSP,
 	CMD_TEMPL_MAX = 0xff
 };
 

diff --git a/trunk/drivers/net/wireless/wl12xx/init.c b/trunk/drivers/net/wireless/wl12xx/init.c
@@ -102,6 +102,13 @@ int wl1271_init_templates_config(struct wl1271 *wl)
 	if (ret < 0)
 		return ret;
 
+	ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP, NULL,
+				      sizeof
+				      (struct wl12xx_arp_rsp_template),
+				      0, WL1271_RATE_AUTOMATIC);
+	if (ret < 0)
+		return ret;
+
 	for (i = 0; i < CMD_TEMPL_KLV_IDX_MAX; i++) {
 		ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV, NULL,
 					      WL1271_CMD_TEMPL_MAX_SIZE, i,

diff --git a/trunk/drivers/net/wireless/wl12xx/main.c b/trunk/drivers/net/wireless/wl12xx/main.c
@@ -2110,10 +2110,26 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
 		__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 = wl1271_acx_arp_ip_filter(wl, true, addr);
-		else
-			ret = wl1271_acx_arp_ip_filter(wl, false, addr);
+		if (bss_conf->arp_addr_cnt == 1 &&
+		    bss_conf->arp_filter_enabled) {
+			/*
+			 * The template should have been configured only upon
+			 * association. however, it seems that the correct ip
+			 * isn't being set (when sending), so we have to
+			 * reconfigure the template upon every ip change.
+			 */
+			ret = wl1271_cmd_build_arp_rsp(wl, addr);
+			if (ret < 0) {
+				wl1271_warning("build arp rsp failed: %d", ret);
+				goto out_sleep;
+			}
+
+			ret = wl1271_acx_arp_ip_filter(wl,
+				(ACX_ARP_FILTER_ARP_FILTERING |
+				 ACX_ARP_FILTER_AUTO_ARP),
+				addr);
+		} else
+			ret = wl1271_acx_arp_ip_filter(wl, 0, addr);
 
 		if (ret < 0)
 			goto out_sleep;

diff --git a/trunk/drivers/net/wireless/wl12xx/wl12xx_80211.h b/trunk/drivers/net/wireless/wl12xx/wl12xx_80211.h
@@ -2,6 +2,7 @@
 #define __WL12XX_80211_H__
 
 #include <linux/if_ether.h>	/* ETH_ALEN */
+#include <linux/if_arp.h>
 
 /* RATES */
 #define IEEE80211_CCK_RATE_1MB		        0x02
@@ -140,6 +141,19 @@ struct wl12xx_probe_req_template {
 	struct wl12xx_ie_rates ext_rates;
 } __packed;
 
+struct wl12xx_arp_rsp_template {
+	struct ieee80211_hdr_3addr hdr;
+
+	u8 llc_hdr[sizeof(rfc1042_header)];
+	u16 llc_type;
+
+	struct arphdr arp_hdr;
+	u8 sender_hw[ETH_ALEN];
+	u32 sender_ip;
+	u8 target_hw[ETH_ALEN];
+	u32 target_ip;
+} __packed;
+
 
 struct wl12xx_probe_resp_template {
 	struct ieee80211_header header;