linux-wireless.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ivo van Doorn <ivdoorn@gmail.com>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org, rt2400-devel@lists.sourceforge.net
Subject: [PATCH 01/30] rt2x00: Correctly configure packet filter in monitor mode
Date: Sun, 19 Aug 2007 20:21:12 +0200	[thread overview]
Message-ID: <200708192021.12839.IvDoorn@gmail.com> (raw)
In-Reply-To: <200708192018.30624.IvDoorn@gmail.com>

>From a065c6ce407b30a02777761794e77ee6cfa8663e Mon Sep 17 00:00:00 2001
From: Ivo van Doorn <IvDoorn@gmail.com>
Date: Sat, 18 Aug 2007 12:50:42 +0200
Subject: [PATCH 01/30] rt2x00: Correctly configure packet filter in monitor mode

If there is a non-monitor interface present
the packet should be strict (even if a monitor interface is present!).
When there is only 1 interface present which is in monitor mode
we should start accepting _all_ frames.
This also means there is no special packet filtering in monitor mode,
so don't check for monitor mode in the set_multicast_list handler.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
---
 drivers/net/wireless/rt2400pci.c    |   19 +++++++++++++------
 drivers/net/wireless/rt2500pci.c    |   19 +++++++++++++------
 drivers/net/wireless/rt2500usb.c    |   19 +++++++++++++------
 drivers/net/wireless/rt2x00config.c |   12 ------------
 drivers/net/wireless/rt2x00mac.c    |    6 ------
 drivers/net/wireless/rt61pci.c      |   21 ++++++++++++++-------
 drivers/net/wireless/rt73usb.c      |   21 ++++++++++++++-------
 7 files changed, 67 insertions(+), 50 deletions(-)

diff --git a/drivers/net/wireless/rt2400pci.c b/drivers/net/wireless/rt2400pci.c
index 757d749..d97fa31 100644
--- a/drivers/net/wireless/rt2400pci.c
+++ b/drivers/net/wireless/rt2400pci.c
@@ -305,15 +305,22 @@ static void rt2400pci_config_type(struct rt2x00_dev *rt2x00dev, int type)
 	else
 		rt2x00_set_field32(&reg, RXCSR0_DROP_TODS, 0);
 
-	rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 1);
-	if (is_monitor_present(&rt2x00dev->interface)) {
-		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 0);
-		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 0);
-		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 0);
-	} else {
+	/*
+	 * If there is a non-monitor interface present
+	 * the packet should be strict (even if a monitor interface is present!).
+	 * When there is only 1 interface present which is in monitor mode
+	 * we should start accepting _all_ frames.
+	 */
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 1);
 		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 1);
 		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 1);
 		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
+	} else if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 0);
 	}
 
 	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
diff --git a/drivers/net/wireless/rt2500pci.c b/drivers/net/wireless/rt2500pci.c
index dd98aa4..0a0fa22 100644
--- a/drivers/net/wireless/rt2500pci.c
+++ b/drivers/net/wireless/rt2500pci.c
@@ -309,15 +309,22 @@ static void rt2500pci_config_type(struct rt2x00_dev *rt2x00dev, const int type)
 	else
 		rt2x00_set_field32(&reg, RXCSR0_DROP_TODS, 0);
 
-	rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 1);
-	if (is_monitor_present(&rt2x00dev->interface)) {
-		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 0);
-		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 0);
-		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 0);
-	} else {
+	/*
+	 * If there is a non-monitor interface present
+	 * the packet should be strict (even if a monitor interface is present!).
+	 * When there is only 1 interface present which is in monitor mode
+	 * we should start accepting _all_ frames.
+	 */
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 1);
 		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 1);
 		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 1);
 		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
+	} else if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 0);
 	}
 
 	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
diff --git a/drivers/net/wireless/rt2500usb.c b/drivers/net/wireless/rt2500usb.c
index e09fb9f..ad400dd 100644
--- a/drivers/net/wireless/rt2500usb.c
+++ b/drivers/net/wireless/rt2500usb.c
@@ -314,15 +314,22 @@ static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type)
 	else
 		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS, 0);
 
-	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC, 1);
-	if (is_monitor_present(&rt2x00dev->interface)) {
-		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL, 0);
-		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL, 0);
-		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 0);
-	} else {
+	/*
+	 * If there is a non-monitor interface present
+	 * the packet should be strict (even if a monitor interface is present!).
+	 * When there is only 1 interface present which is in monitor mode
+	 * we should start accepting _all_ frames.
+	 */
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC, 1);
 		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL, 1);
 		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL, 1);
 		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
+	} else if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC, 0);
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL, 0);
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL, 0);
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 0);
 	}
 
 	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
diff --git a/drivers/net/wireless/rt2x00config.c b/drivers/net/wireless/rt2x00config.c
index 11d5646..4fec0af 100644
--- a/drivers/net/wireless/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00config.c
@@ -48,18 +48,6 @@ void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
 
 void rt2x00lib_config_packet_filter(struct rt2x00_dev *rt2x00dev, int filter)
 {
-	struct interface *intf = &rt2x00dev->interface;
-
-	/*
-	 * When a monitor interface is present,
-	 * we should force enable all modes.
-	 */
-	if (is_monitor_present(intf)) {
-		filter = IFF_PROMISC | IFF_MULTICAST | IFF_BROADCAST;
-		if (intf->filter != filter)
-			__set_bit(PACKET_FILTER_PENDING, &rt2x00dev->flags);
-	}
-
 	/*
 	 * Only configure the device when something has changed,
 	 * or if we are in RESET state in which case all configuration
diff --git a/drivers/net/wireless/rt2x00mac.c b/drivers/net/wireless/rt2x00mac.c
index 205f10f..c384767 100644
--- a/drivers/net/wireless/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00mac.c
@@ -333,12 +333,6 @@ void rt2x00mac_set_multicast_list(struct ieee80211_hw *hw,
 	rt2x00dev->interface.filter = flags;
 
 	/*
-	 * No filtering in monitor mode.
-	 */
-	if (is_monitor_present(&rt2x00dev->interface))
-		return;
-
-	/*
 	 * Raise the pending bit to indicate the
 	 * packet filter should be updated.
 	 */
diff --git a/drivers/net/wireless/rt61pci.c b/drivers/net/wireless/rt61pci.c
index 00f66e0..7f3a00b 100644
--- a/drivers/net/wireless/rt61pci.c
+++ b/drivers/net/wireless/rt61pci.c
@@ -338,17 +338,24 @@ static void rt61pci_config_type(struct rt2x00_dev *rt2x00dev, const int type)
 	else
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 0);
 
-	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
-	if (is_monitor_present(&rt2x00dev->interface)) {
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 0);
-	} else {
+	/*
+	 * If there is a non-monitor interface present
+	 * the packet should be strict (even if a monitor interface is present!).
+	 * When there is only 1 interface present which is in monitor mode
+	 * we should start accepting _all_ frames.
+	 */
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 1);
+	} else if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 0);
 	}
 
 	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
diff --git a/drivers/net/wireless/rt73usb.c b/drivers/net/wireless/rt73usb.c
index 2f0bf29..90e2b29 100644
--- a/drivers/net/wireless/rt73usb.c
+++ b/drivers/net/wireless/rt73usb.c
@@ -313,17 +313,24 @@ static void rt73usb_config_type(struct rt2x00_dev *rt2x00dev, const int type)
 	else
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 0);
 
-	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
-	if (is_monitor_present(&rt2x00dev->interface)) {
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
-		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 0);
-	} else {
+	/*
+	 * If there is a non-monitor interface present
+	 * the packet should be strict (even if a monitor interface is present!).
+	 * When there is only 1 interface present which is in monitor mode
+	 * we should start accepting _all_ frames.
+	 */
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
 		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 1);
+	} else if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 0);
 	}
 
 	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
-- 
1.5.3.rc5


  reply	other threads:[~2007-08-19 18:30 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-19 18:18 Please pull 'upstream' branch of rt2x00 Ivo van Doorn
2007-08-19 18:21 ` Ivo van Doorn [this message]
2007-08-19 18:21 ` [PATCH 02/30] rt2x00: Clear MAC and BSSID when non-monitor interface goes down Ivo van Doorn
2007-08-19 18:21 ` [PATCH 03/30] rt2x00: Check return value of usb_control_msg() Ivo van Doorn
2007-08-19 18:22 ` [PATCH 04/30] rt2x00: Clear all fields on start_link_tune() Ivo van Doorn
2007-08-19 18:22 ` [PATCH 05/30] rt2x00: Don't increase rx_failed for individual frames Ivo van Doorn
2007-08-19 18:23 ` [PATCH 06/30] rt2x00: Set vgc_level during reset_tuner Ivo van Doorn
2007-08-19 18:23 ` [PATCH 07/30] rt2x00: Schedule beacon update Ivo van Doorn
2007-08-19 18:24 ` [PATCH 08/30] rt2x00: Fix width of filter field Ivo van Doorn
2007-08-19 18:24 ` [PATCH 09/30] rt2x00: Be consistent with unsigned Ivo van Doorn
2007-08-19 18:24 ` [PATCH 10/30] rt2x00: Correctly reset TX/RX success/failed counters Ivo van Doorn
2007-08-19 18:25 ` [PATCH 11/30] rt2x00: Rework RF register handling Ivo van Doorn
2007-08-19 18:25 ` [PATCH 12/30] rt2x00: Store firmware in memory Ivo van Doorn
2007-08-19 18:54   ` Michael Buesch
2007-08-19 20:44     ` Ivo van Doorn
2007-08-19 18:26 ` [PATCH 13/30] rt2x00: rt2x00_ring_free returns invalid length Ivo van Doorn
2007-08-19 18:26 ` [PATCH 14/30] Fix off-by-one error in debugfs helpers Ivo van Doorn
2007-08-19 18:26 ` [PATCH 15/30] rt2x00: Use caching for USB transfers Ivo van Doorn
2007-08-19 18:27 ` [PATCH 16/30] rt2x00: Cleanup set_state for rt61 and rt73 Ivo van Doorn
2007-08-19 18:27 ` [PATCH 17/30] rt2x00: Fix register initialization ordering Ivo van Doorn
2007-08-19 18:27 ` [PATCH 18/30] rt2x00: memset descriptor before use Ivo van Doorn
2007-08-19 18:28 ` [PATCH 19/30] rt2x00: Remove IEEE80211_HW_WEP_INCLUDE_IV flag Ivo van Doorn
2007-08-19 18:28 ` [PATCH 20/30] rt2x00: Cleanup TXD flags Ivo van Doorn
2007-08-19 18:28 ` [PATCH 21/30] rt2x00: Add byte-ordering annotation for MAC and BSSID Ivo van Doorn
2007-08-19 18:29 ` [PATCH 22/30] rt2x00: Correctly set TXD retry flag Ivo van Doorn
2007-08-19 18:35 ` [PATCH 23/30] rt2x00: Move rt2x00 files into rt2x00 folder Ivo van Doorn
2007-08-19 18:35 ` [PATCH 24/30] rt2x00: Add file pattern to MAINTAINER entry Ivo van Doorn
2007-08-19 18:35 ` [PATCH 25/30] rt2x00: Fix PLCP setup Ivo van Doorn
2007-08-19 18:36 ` [PATCH 26/30] rt2x00: Clean up RATEMASK handling Ivo van Doorn
2007-08-19 18:36 ` [PATCH 27/30] rt2x00: Add rt2x00lib_reset_link_tuner() Ivo van Doorn
2007-08-19 18:36 ` [PATCH 28/30] rt2x00: Always check if mac80211 requested TX status update Ivo van Doorn
2007-08-20 17:21   ` Johannes Berg
2007-08-21 10:21     ` Ivo van Doorn
2007-08-19 18:36 ` [PATCH 29/30] rt2x00: Lindent Ivo van Doorn
2007-08-19 18:37 ` [PATCH 30/30] rt2x00: rt2x00 2.0.7 Ivo van Doorn
2007-08-23 20:55 ` [Rt2400-devel] Please pull 'upstream' branch of rt2x00 John W. Linville

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200708192021.12839.IvDoorn@gmail.com \
    --to=ivdoorn@gmail.com \
    --cc=linux-wireless@vger.kernel.org \
    --cc=linville@tuxdriver.com \
    --cc=rt2400-devel@lists.sourceforge.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).