| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sat, 26 Oct 2013 22:34:04 +0200
From: Pali Rohár <pali.rohar@...il.com>
To: Luciano Coelho <luca@...lho.fi>,
"John W. Linville" <linville@...driver.com>,
Johannes Berg <johannes@...solutions.net>,
"David S. Miller" <davem@...emloft.net>
Cc: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, freemangordon@....bg,
aaro.koskinen@....fi, pavel@....cz, sre@...g0.de,
joni.lapilainen@...il.com, pali.rohar@...il.com,
David Gnedt <david.gnedt@...izone.at>
Subject: [PATCH 05/16] wl1251: implement hardware ARP filtering
From: David Gnedt <david.gnedt@...izone.at>
Update hardware ARP filter configuration on BSS_CHANGED_ARP_FILTER
notification from mac80211.
Ported from wl1271 driver.
Signed-off-by: David Gnedt <david.gnedt@...izone.at>
---
drivers/net/wireless/ti/wl1251/acx.c | 31 +++++++++++++++++++++++++++++++
drivers/net/wireless/ti/wl1251/acx.h | 15 +++++++++++++++
drivers/net/wireless/ti/wl1251/main.c | 13 +++++++++++++
3 files changed, 59 insertions(+)
diff --git a/drivers/net/wireless/ti/wl1251/acx.c b/drivers/net/wireless/ti/wl1251/acx.c
index cce50e2..9295090 100644
--- a/drivers/net/wireless/ti/wl1251/acx.c
+++ b/drivers/net/wireless/ti/wl1251/acx.c
@@ -1062,6 +1062,37 @@ 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/ti/wl1251/acx.h b/drivers/net/wireless/ti/wl1251/acx.h
index 99ea80e..4444cd0 100644
--- a/drivers/net/wireless/ti/wl1251/acx.h
+++ b/drivers/net/wireless/ti/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. */
+} __attribute__((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/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index 46a2494..9752745 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -1078,6 +1078,19 @@ 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->assoc)
+ 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);
if (!beacon)
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists