/* src/p80211/p80211knetdev.c
-*
-* Linux Kernel net device interface
-*
-* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
-* --------------------------------------------------------------------
-*
-* linux-wlan
-*
-* The contents of this file are subject to the Mozilla Public
-* License Version 1.1 (the "License"); you may not use this file
-* except in compliance with the License. You may obtain a copy of
-* the License at http://www.mozilla.org/MPL/
-*
-* Software distributed under the License is distributed on an "AS
-* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
-* implied. See the License for the specific language governing
-* rights and limitations under the License.
-*
-* Alternatively, the contents of this file may be used under the
-* terms of the GNU Public License version 2 (the "GPL"), in which
-* case the provisions of the GPL are applicable instead of the
-* above. If you wish to allow the use of your version of this file
-* only under the terms of the GPL and not to allow others to use
-* your version of this file under the MPL, indicate your decision
-* by deleting the provisions above and replace them with the notice
-* and other provisions required by the GPL. If you do not delete
-* the provisions above, a recipient may use your version of this
-* file under either the MPL or the GPL.
-*
-* --------------------------------------------------------------------
-*
-* Inquiries regarding the linux-wlan Open Source project can be
-* made directly to:
-*
-* AbsoluteValue Systems Inc.
-* info@linux-wlan.com
-* http://www.linux-wlan.com
-*
-* --------------------------------------------------------------------
-*
-* Portions of the development of this software were funded by
-* Intersil Corporation as part of PRISM(R) chipset product development.
-*
-* --------------------------------------------------------------------
-*
-* The functions required for a Linux network device are defined here.
-*
-* --------------------------------------------------------------------
-*/
+ *
+ * Linux Kernel net device interface
+ *
+ * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
+ * --------------------------------------------------------------------
+ *
+ * linux-wlan
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete
+ * the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * --------------------------------------------------------------------
+ *
+ * Inquiries regarding the linux-wlan Open Source project can be
+ * made directly to:
+ *
+ * AbsoluteValue Systems Inc.
+ * info@linux-wlan.com
+ * http://www.linux-wlan.com
+ *
+ * --------------------------------------------------------------------
+ *
+ * Portions of the development of this software were funded by
+ * Intersil Corporation as part of PRISM(R) chipset product development.
+ *
+ * --------------------------------------------------------------------
+ *
+ * The functions required for a Linux network device are defined here.
+ *
+ * --------------------------------------------------------------------
+ */
#include <linux/module.h>
#include <linux/kernel.h>
MODULE_PARM_DESC(wlan_wext_write, "enable write wireless extensions");
/*----------------------------------------------------------------
-* p80211knetdev_init
-*
-* Init method for a Linux netdevice. Called in response to
-* register_netdev.
-*
-* Arguments:
-* none
-*
-* Returns:
-* nothing
-----------------------------------------------------------------*/
+ * p80211knetdev_init
+ *
+ * Init method for a Linux netdevice. Called in response to
+ * register_netdev.
+ *
+ * Arguments:
+ * none
+ *
+ * Returns:
+ * nothing
+ *----------------------------------------------------------------
+ */
static int p80211knetdev_init(struct net_device *netdev)
{
/* Called in response to register_netdev */
}
/*----------------------------------------------------------------
-* p80211knetdev_open
-*
-* Linux netdevice open method. Following a successful call here,
-* the device is supposed to be ready for tx and rx. In our
-* situation that may not be entirely true due to the state of the
-* MAC below.
-*
-* Arguments:
-* netdev Linux network device structure
-*
-* Returns:
-* zero on success, non-zero otherwise
-----------------------------------------------------------------*/
+ * p80211knetdev_open
+ *
+ * Linux netdevice open method. Following a successful call here,
+ * the device is supposed to be ready for tx and rx. In our
+ * situation that may not be entirely true due to the state of the
+ * MAC below.
+ *
+ * Arguments:
+ * netdev Linux network device structure
+ *
+ * Returns:
+ * zero on success, non-zero otherwise
+ *----------------------------------------------------------------
+ */
static int p80211knetdev_open(struct net_device *netdev)
{
int result = 0; /* success */
}
/*----------------------------------------------------------------
-* p80211knetdev_stop
-*
-* Linux netdevice stop (close) method. Following this call,
-* no frames should go up or down through this interface.
-*
-* Arguments:
-* netdev Linux network device structure
-*
-* Returns:
-* zero on success, non-zero otherwise
-----------------------------------------------------------------*/
+ * p80211knetdev_stop
+ *
+ * Linux netdevice stop (close) method. Following this call,
+ * no frames should go up or down through this interface.
+ *
+ * Arguments:
+ * netdev Linux network device structure
+ *
+ * Returns:
+ * zero on success, non-zero otherwise
+ *----------------------------------------------------------------
+ */
static int p80211knetdev_stop(struct net_device *netdev)
{
int result = 0;
}
/*----------------------------------------------------------------
-* p80211netdev_rx
-*
-* Frame receive function called by the mac specific driver.
-*
-* Arguments:
-* wlandev WLAN network device structure
-* skb skbuff containing a full 802.11 frame.
-* Returns:
-* nothing
-* Side effects:
-*
-----------------------------------------------------------------*/
+ * p80211netdev_rx
+ *
+ * Frame receive function called by the mac specific driver.
+ *
+ * Arguments:
+ * wlandev WLAN network device structure
+ * skb skbuff containing a full 802.11 frame.
+ * Returns:
+ * nothing
+ * Side effects:
+ *
+ *----------------------------------------------------------------
+ */
void p80211netdev_rx(struct wlandevice *wlandev, struct sk_buff *skb)
{
/* Enqueue for post-irq processing */
}
/*----------------------------------------------------------------
-* p80211knetdev_hard_start_xmit
-*
-* Linux netdevice method for transmitting a frame.
-*
-* Arguments:
-* skb Linux sk_buff containing the frame.
-* netdev Linux netdevice.
-*
-* Side effects:
-* If the lower layers report that buffers are full. netdev->tbusy
-* will be set to prevent higher layers from sending more traffic.
-*
-* Note: If this function returns non-zero, higher layers retain
-* ownership of the skb.
-*
-* Returns:
-* zero on success, non-zero on failure.
-----------------------------------------------------------------*/
+ * p80211knetdev_hard_start_xmit
+ *
+ * Linux netdevice method for transmitting a frame.
+ *
+ * Arguments:
+ * skb Linux sk_buff containing the frame.
+ * netdev Linux netdevice.
+ *
+ * Side effects:
+ * If the lower layers report that buffers are full. netdev->tbusy
+ * will be set to prevent higher layers from sending more traffic.
+ *
+ * Note: If this function returns non-zero, higher layers retain
+ * ownership of the skb.
+ *
+ * Returns:
+ * zero on success, non-zero on failure.
+ *----------------------------------------------------------------
+ */
static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
struct net_device *netdev)
{
}
/*----------------------------------------------------------------
-* p80211knetdev_set_multicast_list
-*
-* Called from higher layers whenever there's a need to set/clear
-* promiscuous mode or rewrite the multicast list.
-*
-* Arguments:
-* none
-*
-* Returns:
-* nothing
-----------------------------------------------------------------*/
+ * p80211knetdev_set_multicast_list
+ *
+ * Called from higher layers whenever there's a need to set/clear
+ * promiscuous mode or rewrite the multicast list.
+ *
+ * Arguments:
+ * none
+ *
+ * Returns:
+ * nothing
+ *----------------------------------------------------------------
+ */
static void p80211knetdev_set_multicast_list(struct net_device *dev)
{
struct wlandevice *wlandev = dev->ml_priv;
#endif
/*----------------------------------------------------------------
-* p80211knetdev_do_ioctl
-*
-* Handle an ioctl call on one of our devices. Everything Linux
-* ioctl specific is done here. Then we pass the contents of the
-* ifr->data to the request message handler.
-*
-* Arguments:
-* dev Linux kernel netdevice
-* ifr Our private ioctl request structure, typed for the
-* generic struct ifreq so we can use ptr to func
-* w/o cast.
-*
-* Returns:
-* zero on success, a negative errno on failure. Possible values:
-* -ENETDOWN Device isn't up.
-* -EBUSY cmd already in progress
-* -ETIME p80211 cmd timed out (MSD may have its own timers)
-* -EFAULT memory fault copying msg from user buffer
-* -ENOMEM unable to allocate kernel msg buffer
-* -ENOSYS bad magic, it the cmd really for us?
-* -EintR sleeping on cmd, awakened by signal, cmd cancelled.
-*
-* Call Context:
-* Process thread (ioctl caller). TODO: SMP support may require
-* locks.
-----------------------------------------------------------------*/
+ * p80211knetdev_do_ioctl
+ *
+ * Handle an ioctl call on one of our devices. Everything Linux
+ * ioctl specific is done here. Then we pass the contents of the
+ * ifr->data to the request message handler.
+ *
+ * Arguments:
+ * dev Linux kernel netdevice
+ * ifr Our private ioctl request structure, typed for the
+ * generic struct ifreq so we can use ptr to func
+ * w/o cast.
+ *
+ * Returns:
+ * zero on success, a negative errno on failure. Possible values:
+ * -ENETDOWN Device isn't up.
+ * -EBUSY cmd already in progress
+ * -ETIME p80211 cmd timed out (MSD may have its own timers)
+ * -EFAULT memory fault copying msg from user buffer
+ * -ENOMEM unable to allocate kernel msg buffer
+ * -ENOSYS bad magic, it the cmd really for us?
+ * -EintR sleeping on cmd, awakened by signal, cmd cancelled.
+ *
+ * Call Context:
+ * Process thread (ioctl caller). TODO: SMP support may require
+ * locks.
+ *----------------------------------------------------------------
+ */
static int p80211knetdev_do_ioctl(struct net_device *dev,
struct ifreq *ifr, int cmd)
{
}
/*----------------------------------------------------------------
-* p80211knetdev_set_mac_address
-*
-* Handles the ioctl for changing the MACAddress of a netdevice
-*
-* references: linux/netdevice.h and drivers/net/net_init.c
-*
-* NOTE: [MSM] We only prevent address changes when the netdev is
-* up. We don't control anything based on dot11 state. If the
-* address is changed on a STA that's currently associated, you
-* will probably lose the ability to send and receive data frames.
-* Just be aware. Therefore, this should usually only be done
-* prior to scan/join/auth/assoc.
-*
-* Arguments:
-* dev netdevice struct
-* addr the new MACAddress (a struct)
-*
-* Returns:
-* zero on success, a negative errno on failure. Possible values:
-* -EBUSY device is bussy (cmd not possible)
-* -and errors returned by: p80211req_dorequest(..)
-*
-* by: Collin R. Mulliner <collin@mulliner.org>
-----------------------------------------------------------------*/
+ * p80211knetdev_set_mac_address
+ *
+ * Handles the ioctl for changing the MACAddress of a netdevice
+ *
+ * references: linux/netdevice.h and drivers/net/net_init.c
+ *
+ * NOTE: [MSM] We only prevent address changes when the netdev is
+ * up. We don't control anything based on dot11 state. If the
+ * address is changed on a STA that's currently associated, you
+ * will probably lose the ability to send and receive data frames.
+ * Just be aware. Therefore, this should usually only be done
+ * prior to scan/join/auth/assoc.
+ *
+ * Arguments:
+ * dev netdevice struct
+ * addr the new MACAddress (a struct)
+ *
+ * Returns:
+ * zero on success, a negative errno on failure. Possible values:
+ * -EBUSY device is bussy (cmd not possible)
+ * -and errors returned by: p80211req_dorequest(..)
+ *
+ * by: Collin R. Mulliner <collin@mulliner.org>
+ *----------------------------------------------------------------
+ */
static int p80211knetdev_set_mac_address(struct net_device *dev, void *addr)
{
struct sockaddr *new_addr = addr;
static int wlan_change_mtu(struct net_device *dev, int new_mtu)
{
/* 2312 is max 802.11 payload, 20 is overhead, (ether + llc +snap)
- and another 8 for wep. */
+ * and another 8 for wep.
+ */
if ((new_mtu < 68) || (new_mtu > (2312 - 20 - 8)))
return -EINVAL;
};
/*----------------------------------------------------------------
-* wlan_setup
-*
-* Roughly matches the functionality of ether_setup. Here
-* we set up any members of the wlandevice structure that are common
-* to all devices. Additionally, we allocate a linux 'struct device'
-* and perform the same setup as ether_setup.
-*
-* Note: It's important that the caller have setup the wlandev->name
-* ptr prior to calling this function.
-*
-* Arguments:
-* wlandev ptr to the wlandev structure for the
-* interface.
-* physdev ptr to usb device
-* Returns:
-* zero on success, non-zero otherwise.
-* Call Context:
-* Should be process thread. We'll assume it might be
-* interrupt though. When we add support for statically
-* compiled drivers, this function will be called in the
-* context of the kernel startup code.
-----------------------------------------------------------------*/
+ * wlan_setup
+ *
+ * Roughly matches the functionality of ether_setup. Here
+ * we set up any members of the wlandevice structure that are common
+ * to all devices. Additionally, we allocate a linux 'struct device'
+ * and perform the same setup as ether_setup.
+ *
+ * Note: It's important that the caller have setup the wlandev->name
+ * ptr prior to calling this function.
+ *
+ * Arguments:
+ * wlandev ptr to the wlandev structure for the
+ * interface.
+ * physdev ptr to usb device
+ * Returns:
+ * zero on success, non-zero otherwise.
+ * Call Context:
+ * Should be process thread. We'll assume it might be
+ * interrupt though. When we add support for statically
+ * compiled drivers, this function will be called in the
+ * context of the kernel startup code.
+ *----------------------------------------------------------------
+ */
int wlan_setup(struct wlandevice *wlandev, struct device *physdev)
{
int result = 0;
}
/*----------------------------------------------------------------
-* wlan_unsetup
-*
-* This function is paired with the wlan_setup routine. It should
-* be called after unregister_wlandev. Basically, all it does is
-* free the 'struct device' that's associated with the wlandev.
-* We do it here because the 'struct device' isn't allocated
-* explicitly in the driver code, it's done in wlan_setup. To
-* do the free in the driver might seem like 'magic'.
-*
-* Arguments:
-* wlandev ptr to the wlandev structure for the
-* interface.
-* Call Context:
-* Should be process thread. We'll assume it might be
-* interrupt though. When we add support for statically
-* compiled drivers, this function will be called in the
-* context of the kernel startup code.
-----------------------------------------------------------------*/
+ * wlan_unsetup
+ *
+ * This function is paired with the wlan_setup routine. It should
+ * be called after unregister_wlandev. Basically, all it does is
+ * free the 'struct device' that's associated with the wlandev.
+ * We do it here because the 'struct device' isn't allocated
+ * explicitly in the driver code, it's done in wlan_setup. To
+ * do the free in the driver might seem like 'magic'.
+ *
+ * Arguments:
+ * wlandev ptr to the wlandev structure for the
+ * interface.
+ * Call Context:
+ * Should be process thread. We'll assume it might be
+ * interrupt though. When we add support for statically
+ * compiled drivers, this function will be called in the
+ * context of the kernel startup code.
+ *----------------------------------------------------------------
+ */
void wlan_unsetup(struct wlandevice *wlandev)
{
struct wireless_dev *wdev;
}
/*----------------------------------------------------------------
-* register_wlandev
-*
-* Roughly matches the functionality of register_netdev. This function
-* is called after the driver has successfully probed and set up the
-* resources for the device. It's now ready to become a named device
-* in the Linux system.
-*
-* First we allocate a name for the device (if not already set), then
-* we call the Linux function register_netdevice.
-*
-* Arguments:
-* wlandev ptr to the wlandev structure for the
-* interface.
-* Returns:
-* zero on success, non-zero otherwise.
-* Call Context:
-* Can be either interrupt or not.
-----------------------------------------------------------------*/
+ * register_wlandev
+ *
+ * Roughly matches the functionality of register_netdev. This function
+ * is called after the driver has successfully probed and set up the
+ * resources for the device. It's now ready to become a named device
+ * in the Linux system.
+ *
+ * First we allocate a name for the device (if not already set), then
+ * we call the Linux function register_netdevice.
+ *
+ * Arguments:
+ * wlandev ptr to the wlandev structure for the
+ * interface.
+ * Returns:
+ * zero on success, non-zero otherwise.
+ * Call Context:
+ * Can be either interrupt or not.
+ *----------------------------------------------------------------
+ */
int register_wlandev(struct wlandevice *wlandev)
{
return register_netdev(wlandev->netdev);
}
/*----------------------------------------------------------------
-* unregister_wlandev
-*
-* Roughly matches the functionality of unregister_netdev. This
-* function is called to remove a named device from the system.
-*
-* First we tell linux that the device should no longer exist.
-* Then we remove it from the list of known wlan devices.
-*
-* Arguments:
-* wlandev ptr to the wlandev structure for the
-* interface.
-* Returns:
-* zero on success, non-zero otherwise.
-* Call Context:
-* Can be either interrupt or not.
-----------------------------------------------------------------*/
+ * unregister_wlandev
+ *
+ * Roughly matches the functionality of unregister_netdev. This
+ * function is called to remove a named device from the system.
+ *
+ * First we tell linux that the device should no longer exist.
+ * Then we remove it from the list of known wlan devices.
+ *
+ * Arguments:
+ * wlandev ptr to the wlandev structure for the
+ * interface.
+ * Returns:
+ * zero on success, non-zero otherwise.
+ * Call Context:
+ * Can be either interrupt or not.
+ *----------------------------------------------------------------
+ */
int unregister_wlandev(struct wlandevice *wlandev)
{
struct sk_buff *skb;
}
/*----------------------------------------------------------------
-* p80211netdev_hwremoved
-*
-* Hardware removed notification. This function should be called
-* immediately after an MSD has detected that the underlying hardware
-* has been yanked out from under us. The primary things we need
-* to do are:
-* - Mark the wlandev
-* - Prevent any further traffic from the knetdev i/f
-* - Prevent any further requests from mgmt i/f
-* - If there are any waitq'd mgmt requests or mgmt-frame exchanges,
-* shut them down.
-* - Call the MSD hwremoved function.
-*
-* The remainder of the cleanup will be handled by unregister().
-* Our primary goal here is to prevent as much tickling of the MSD
-* as possible since the MSD is already in a 'wounded' state.
-*
-* TODO: As new features are added, this function should be
-* updated.
-*
-* Arguments:
-* wlandev WLAN network device structure
-* Returns:
-* nothing
-* Side effects:
-*
-* Call context:
-* Usually interrupt.
-----------------------------------------------------------------*/
+ * p80211netdev_hwremoved
+ *
+ * Hardware removed notification. This function should be called
+ * immediately after an MSD has detected that the underlying hardware
+ * has been yanked out from under us. The primary things we need
+ * to do are:
+ * - Mark the wlandev
+ * - Prevent any further traffic from the knetdev i/f
+ * - Prevent any further requests from mgmt i/f
+ * - If there are any waitq'd mgmt requests or mgmt-frame exchanges,
+ * shut them down.
+ * - Call the MSD hwremoved function.
+ *
+ * The remainder of the cleanup will be handled by unregister().
+ * Our primary goal here is to prevent as much tickling of the MSD
+ * as possible since the MSD is already in a 'wounded' state.
+ *
+ * TODO: As new features are added, this function should be
+ * updated.
+ *
+ * Arguments:
+ * wlandev WLAN network device structure
+ * Returns:
+ * nothing
+ * Side effects:
+ *
+ * Call context:
+ * Usually interrupt.
+ *----------------------------------------------------------------
+ */
void p80211netdev_hwremoved(struct wlandevice *wlandev)
{
wlandev->hwremoved = 1;
}
/*----------------------------------------------------------------
-* p80211_rx_typedrop
-*
-* Classifies the frame, increments the appropriate counter, and
-* returns 0|1|2 indicating whether the driver should handle, ignore, or
-* drop the frame
-*
-* Arguments:
-* wlandev wlan device structure
-* fc frame control field
-*
-* Returns:
-* zero if the frame should be handled by the driver,
-* one if the frame should be ignored
-* anything else means we drop it.
-*
-* Side effects:
-*
-* Call context:
-* interrupt
-----------------------------------------------------------------*/
+ * p80211_rx_typedrop
+ *
+ * Classifies the frame, increments the appropriate counter, and
+ * returns 0|1|2 indicating whether the driver should handle, ignore, or
+ * drop the frame
+ *
+ * Arguments:
+ * wlandev wlan device structure
+ * fc frame control field
+ *
+ * Returns:
+ * zero if the frame should be handled by the driver,
+ * one if the frame should be ignored
+ * anything else means we drop it.
+ *
+ * Side effects:
+ *
+ * Call context:
+ * interrupt
+ *----------------------------------------------------------------
+ */
static int p80211_rx_typedrop(struct wlandevice *wlandev, u16 fc)
{
u16 ftype;
projects / mirror_ubuntu-jammy-kernel.git / commitdiff