- 16 2月, 2010 1 次提交
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由 Jouni Malinen 提交于
This implements a new command to register for action frames that userspace wants to handle instead of the in-kernel rejection. It is then responsible for rejecting ones that it decided not to handle. There is no unregistration, but the socket can be closed for that. Frames that are not registered for will not be forwarded to userspace and will be rejected by the kernel, the cfg80211 API helps implementing that. Additionally, this patch adds a new command that allows doing action frame transmission from userspace. It can be used either to exchange action frames on the current operational channel (e.g., with the AP with which we are currently associated) or to exchange off-channel Public Action frames with the remain-on-channel command. Signed-off-by: NJouni Malinen <jouni.malinen@atheros.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 09 2月, 2010 2 次提交
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由 Johannes Berg 提交于
In AP mode, the only mode where the parameter is supposed to be valid, we never assign it! Fix that to allow drivers to avoid parsing the TIM IE for the value. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Many drivers would like to sleep during station addition and removal, and currently have a high complexity there from not being able to. This introduces two new callbacks sta_add() and sta_remove() that drivers can implement instead of using sta_notify() and that can sleep, and the new sta_add() callback is also allowed to fail. The reason we didn't do this previously is that the IBSS code wants to insert stations from the RX path, which is a tasklet, so cannot sleep. This patch will keep the station allocation in that path, but moves adding the station to the driver out of line. Since the addition can now fail, we can have IBSS peer structs the driver rejected -- in that case we still talk to the station but never tell the driver about it in the control.sta pointer. If there will ever be a driver that has a low limit on the number of stations and that cannot talk to any stations that are not known to it, we need to do come up with a new strategy of handling larger IBSSs, maybe quicker expiry or rejecting peers. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 16 1月, 2010 2 次提交
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由 Felix Fietkau 提交于
Normally 5GHz does not have a concept of long vs short slot time, however the slot time that it ends up using is the same as for 2.4 GHZ and use_short_slot == true Because of that, it makes more sense to force use_short_slot = true whenever 5 GHz is being used, so that this particular check does not have to be in every single driver that uses this flag. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Benoit Papillault 提交于
ieee80211_set_power_mgmt is meant for STA interfaces only. Moreover, since sdata->u.mgd.mtx is only initialized for STA interfaces, using this code for any other type of interface (like creating a monitor interface) will result in a oops. Cc: stable@kernel.org Signed-off-by: NBenoit Papillault <benoit.papillault@free.fr> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 13 1月, 2010 4 次提交
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由 Kalle Valo 提交于
Add Unscheduled Automatic Power-Save Delivery (U-APSD) client support. The idea is that the data frames from the client trigger AP to send the buffered frames with ACs which have U-APSD enabled. This decreases latency and makes it possible to save even more power. Driver needs to use IEEE80211_HW_UAPSD to enable the feature. The current implementation assumes that firmware takes care of the wakeup and hardware needing IEEE80211_HW_PS_NULLFUNC_STACK is not yet supported. Tested with wl1251 on a Nokia N900 and Cisco Aironet 1231G AP and running various test traffic with ping. Signed-off-by: NKalle Valo <kalle.valo@nokia.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Felix Fietkau 提交于
Since the per-vif station changes, sta_info_get on the ap sdata no longer returns entries for stations on ap vlans. This causes issues with hostapd, which currently always passes the ap interface name to nl80211 calls. This patch provides bug compatibility with the earlier versions until hostapd is fixed. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Jouni Malinen 提交于
Extend struct cfg80211_bitrate_mask to actually use a bitfield mask instead of just a single fixed or maximum rate index. This change itself does not modify the behavior (except for debugfs files), but it prepares cfg80211 and mac80211 for a new nl80211 command for setting which rates can be used in TX rate control. Since frames are now going through the rate control algorithm unconditionally, the internal IEEE80211_TX_INTFL_RCALGO flag can now be removed. The RC implementations can use the rate_idx_mask value to optimize their behavior if only a single rate is enabled. The old max_rate_idx in struct ieee80211_tx_rate_control is maintained (but commented as deprecated) for backwards compatibility with existing RC implementations. Once these implementations have been updated to use the more generic rate_idx_mask, the max_rate_idx value can be removed. Signed-off-by: NJouni Malinen <jouni.malinen@atheros.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Lukáš Turek 提交于
Mac80211 callback to driver set_coverage_class() sets slot time and ACK timeout for given IEEE 802.11 coverage class. The callback is optional, but it's essential for long distance links. Signed-off-by: NLukas Turek <8an@praha12.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 29 12月, 2009 3 次提交
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由 Johannes Berg 提交于
This implements the new remain-on-channel cfg80211 command in mac80211, extending the work interface. Also change the work purge code to be able to clean up events properly (pretending they timed out.) Signed-off-by: NJouni Malinen <jouni.malinen@atheros.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
cfg80211 offers private data for each BSS struct, which mac80211 uses. However, mac80211 uses internal and external (cfg80211) BSS pointers interchangeably and has a hack to put the cfg80211 bss struct into the private struct. Remove this hack, properly converting between the pointers wherever necessary. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Instead of always using netif_running(sdata->dev) use ieee80211_sdata_running(sdata) now which is just an inline containing netif_running() for now. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 23 12月, 2009 2 次提交
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由 Johannes Berg 提交于
When hw rate control is used, these parameters have no meaning because the hardware cannot get at them right now, so disallow setting them. Also clean up the function a bit. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Enable spatial multiplexing in mac80211 by telling the driver what to do and, where necessary, sending action frames to the AP to update the requested SMPS mode. Also includes a trivial implementation for hwsim that just logs the requested mode. For now, the userspace interface is in debugfs only, and let you toggle the requested mode at any time. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 22 12月, 2009 2 次提交
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由 Johannes Berg 提交于
For bluetooth 3, we will most likely not have a netdev for a virtual interface (sdata), so prepare for that by reducing the reliance on having a netdev. This patch moves the name and address fields into the sdata struct and uses them from there all over. Some work is needed to keep them sync'ed, but that's not a lot of work and in slow paths anyway. In doing so, this also reduces the number of pointer dereferences in many places, because of things like sdata->dev->dev_addr becoming sdata->vif.addr. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The station management currently uses the virtual interface, but you cannot add the same station to multiple virtual interfaces if you're communicating with it in multiple ways. This restriction should be lifted so that in the future we can, for instance, support bluetooth 3 with an access point that mac80211 is already associated to. We can do that by requiring all sta_info_get users to provide the virtual interface and making the RX code aware that an address may match more than one station struct. Thanks to the previous patches this one isn't all that large and except for the RX and TX status paths changes has low complexity. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 10 12月, 2009 1 次提交
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由 John W. Linville 提交于
This part was missed in "cfg80211: implement get_wireless_stats", probably because sta_set_sinfo already existed and was only handling dBm signals. Cc: stable@kernel.org Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 24 11月, 2009 1 次提交
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由 Johannes Berg 提交于
Add a missing rcu_read_unlock() before jumping out of the ieee80211_change_station() function in the error case. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 20 11月, 2009 1 次提交
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由 Johannes Berg 提交于
It's very likely that not many devices will support four-address mode in station or AP mode so introduce capability bits for both modes, set them in mac80211 and check them when userspace tries to use the mode. Also, keep track of 4addr in cfg80211 (wireless_dev) and not in mac80211 any more. mac80211 can also be improved for the VLAN case by not looking at the 4addr flag but maintaining the station pointer for it correctly. However, keep track of use_4addr for station mode in mac80211 to avoid all the derefs. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 19 11月, 2009 1 次提交
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由 Johannes Berg 提交于
Instead of filtering by device, directly look up by sdata. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 14 11月, 2009 2 次提交
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由 Rui Paulo 提交于
Signed-off-by: NRui Paulo <rpaulo@gmail.com> Signed-off-by: NJavier Cardona <javier@cozybit.com> Reviewed-by: NAndrey Yurovsky <andrey@cozybit.com> Tested-by: NBrian Cavagnolo <brian@cozybit.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Rui Paulo 提交于
Resulting object files have the same MD5 as before. Signed-off-by: NRui Paulo <rpaulo@gmail.com> Signed-off-by: NJavier Cardona <javier@cozybit.com> Reviewed-by: NAndrey Yurovsky <andrey@cozybit.com> Tested-by: NBrian Cavagnolo <brian@cozybit.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 12 11月, 2009 1 次提交
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由 Felix Fietkau 提交于
In some situations it might be useful to run a network with an Access Point and multiple clients, but with each client bridged to a network behind it. For this to work, both the client and the AP need to transmit 4-address frames, containing both source and destination MAC addresses. With this patch, you can configure a client to communicate using only 4-address frames for data traffic. On the AP side you can enable 4-address frames for individual clients by isolating them in separate AP VLANs which are configured in 4-address mode. Such an AP VLAN will be limited to one client only, and this client will be used as the destination for all traffic on its interface, regardless of the destination MAC address in the packet headers. The advantage of this mode compared to regular WDS mode is that it's easier to configure and does not require a static list of peer MAC addresses on any side. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 03 11月, 2009 1 次提交
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由 Johannes Berg 提交于
For some strange reason the netif_running() check ended up after the actual type change instead of before, potentially causing all kinds of problems if the interface is up while changing the type; one of the problems manifests itself as a warning: WARNING: at net/mac80211/iface.c:651 ieee80211_teardown_sdata+0xda/0x1a0 [mac80211]() Hardware name: Aspire one Pid: 2596, comm: wpa_supplicant Tainted: G W 2.6.31-10-generic #32-Ubuntu Call Trace: [] warn_slowpath_common+0x6d/0xa0 [] warn_slowpath_null+0x15/0x20 [] ieee80211_teardown_sdata+0xda/0x1a0 [mac80211] [] ieee80211_if_change_type+0x4a/0xc0 [mac80211] [] ieee80211_change_iface+0x61/0xa0 [mac80211] [] cfg80211_wext_siwmode+0xc7/0x120 [cfg80211] [] ioctl_standard_call+0x58/0xf0 (http://www.kerneloops.org/searchweek.php?search=ieee80211_teardown_sdata) Cc: Arjan van de Ven <arjan@infradead.org> Cc: stable@kernel.org Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 31 10月, 2009 1 次提交
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由 Johannes Berg 提交于
It's not right to do something here when returning an error, and hostapd should never have relied on it as it only fixes up a small part of the problem anyway. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 14 8月, 2009 1 次提交
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由 Johannes Berg 提交于
In order for userspace to be able to figure out whether it obtained a consistent snapshot of data or not when using netlink dumps, we need to have a generation number in each dump message that indicates whether the list has changed or not -- its value is arbitrary. This patch adds such a number to all dumps, this needs some mac80211 involvement to keep track of a generation number to start with when adding/removing mesh paths or stations. The wiphy and netdev lists can be fully handled within cfg80211, of course, but generation numbers need to be stored there as well. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 28 7月, 2009 1 次提交
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由 Johannes Berg 提交于
In order to make cfg80211/nl80211 aware of network namespaces, we have to do the following things: * del_virtual_intf method takes an interface index rather than a netdev pointer - simply change this * nl80211 uses init_net a lot, it changes to use the sender's network namespace * scan requests use the interface index, hold a netdev pointer and reference instead * we want a wiphy and its associated virtual interfaces to be in one netns together, so - we need to be able to change ns for a given interface, so export dev_change_net_namespace() - for each virtual interface set the NETIF_F_NETNS_LOCAL flag, and clear that flag only when the wiphy changes ns, to disallow breaking this invariant * when a network namespace goes away, we need to reparent the wiphy to init_net * cfg80211 users that support creating virtual interfaces must create them in the wiphy's namespace, currently this affects only mac80211 The end result is that you can now switch an entire wiphy into a different network namespace with the new command iw phy#<idx> set netns <pid> and all virtual interfaces will follow (or the operation fails). Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 25 7月, 2009 1 次提交
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由 Johannes Berg 提交于
ieee80211_testmode_cmd can very well be static. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 11 7月, 2009 12 次提交
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由 Johannes Berg 提交于
Over time, a lot of locking issues have crept into the smarts of cfg80211, so e.g. scan completion can race against a new scan, IBSS join can race against leaving an IBSS, etc. Introduce a new per-interface lock that protects most of the per-interface data that we need to keep track of, and sprinkle assertions about that lock everywhere. Some things now need to be offloaded to work structs so that we don't require being able to sleep in functions the drivers call. The exception to that are the MLME callbacks (rx_auth etc.) that currently only mac80211 calls because it was easier to do that there instead of in cfg80211, and future drivers implementing those calls will, if they ever exist, probably need to use a similar scheme like mac80211 anyway... In order to be able to handle _deauth and _disassoc properly, introduce a cookie passed to it that will determine locking requirements. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Sit tight. This shakes up the world as you know it. Let go of your spaghetti tongs, they will no longer be required, the horrible statemachine in net/mac80211/mlme.c is no more... With the cfg80211 SME mac80211 now has much less to keep track of, but, on the other hand, for FT it needs to be able to keep track of at least one authentication being in progress while associated. So convert from a single state machine to having small ones for all the different things we need to do. For real FT it will still need work wrt. PS, but this should be a good step. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Since we don't really know that well in the kernel, let's let the SME control whether it wants to use reassociation or not, by allowing it to give the previous BSSID in the associate() parameters. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
In order to avoid problems with BSS structs going away while they're in use, I've long wanted to make cfg80211 keep track of them. Without the SME, that wasn't doable but now that we have the SME we can do this too. It can keep track of up to four separate authentications and one association, regardless of whether it's controlled by the cfg80211 SME or the userspace SME. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
With mac80211 now always controlled by an external SME, a lot of code is dead -- SSID, BSSID, channel selection is always done externally, etc. Additionally, rename IEEE80211_STA_TKIP_WEP_USED to IEEE80211_STA_DISABLE_11N and clean up the code a bit. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The automatic auth algorithm issue is now solved in cfg80211, so mac80211 no longer needs code to try different algorithms -- just using whatever cfg80211 asked for is good. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The IEEE80211_STA_TKIP_WEP_USED flag is used internally to disable HT when WEP or TKIP are used. Now that cfg80211 is giving us the required information, we can set the flag appropriately again. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
For now, let's implement that using a very hackish way: simply mirror the wext API in the cfg80211 API. This will have to be changed later when we implement proper bitrate API. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This implements siocsiwap/giwap for WDS mode. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Just on/off and timeout, and with a hacky cfg80211 method until we figure out what we want, though this is probably sufficient as we want to use pm_qos for wifi everywhere. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Samuel Ortiz 提交于
This patch introduces the cfg80211 connect/disconnect API. The goal here is to run the AUTH and ASSOC steps in one call. This is needed for some fullmac cards that run both steps directly from the target, after the host driver sends a connect command. Additionally, all the new crypto parameters for connect() are now also valid for associate() -- although associate requires the IEs to be used, the information can be useful for drivers and should be given. Signed-off-by: NSamuel Ortiz <samuel.ortiz@intel.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This introduces a new NL80211_CMD_TESTMODE for testing and calibration use with nl80211. There's no multiplexing like like iwpriv had, and the command is not available by default, it needs to be explicitly enabled in Kconfig and shouldn't be enabled in most kernels. The command requires a wiphy index or interface index to identify the device to operate on, and the new TESTDATA attribute. There also is API for sending replies to the command, and testmode multicast messages (on a testmode multicast group). I've also updated mac80211 to be able to pass through the command to the driver, since it itself doesn't implement the testmode command. Additionally, to give people an idea of how to use the command, I've added a little code to hwsim that makes use of the new command to set the powersave mode, this is currently done via debugfs and should remain there, and the testmode command only serves as an example of how to use this best -- with nested netlink attributes in the TESTDATA attribute. A hwsim testmode tool can be found at http://git.sipsolutions.net/hwsim.git/. This tool is BSD licensed so people can easily use it as a basis for their own internal fabrication and validation tools. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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