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* genetlink: make netns awareJohannes Berg2009-07-121-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes generic netlink network namespace aware. No generic netlink families except for the controller family are made namespace aware, they need to be checked one by one and then set the family->netnsok member to true. A new function genlmsg_multicast_netns() is introduced to allow sending a multicast message in a given namespace, for example when it applies to an object that lives in that namespace, a new function genlmsg_multicast_allns() to send a message to all network namespaces (for objects that do not have an associated netns). The function genlmsg_multicast() is changed to multicast the message in just init_net, which is currently correct for all generic netlink families since they only work in init_net right now. Some will later want to work in all net namespaces because they do not care about the netns at all -- those will have to be converted to use one of the new functions genlmsg_multicast_allns() or genlmsg_multicast_netns() whenever they are made netns aware in some way. After this patch families can easily decide whether or not they should be available in all net namespaces. Many genl families us it for objects not related to networking and should therefore be available in all namespaces, but that will have to be done on a per family basis. Note that this doesn't touch on the checkpoint/restart problem where network namespaces could be used, genl families and multicast groups are numbered globally and I see no easy way of changing that, especially since it must be possible to multicast to all network namespaces for those families that do not care about netns. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* cfg80211: clean up naming once and for allJohannes Berg2009-07-101-170/+170
| | | | | | | | | | | We've named the registered devices 'drv' sometimes, thinking of "driver", which is not what it is, it's the internal representation of a wiphy, i.e. a device. Let's clean up the naming once and and use 'rdev' aka 'registered device' everywhere. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: fix lockingJohannes Berg2009-07-101-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: fix MFP bug, sparse warningsJohannes Berg2009-07-101-3/+3
| | | | | | | | | sparse warns about a number of things, and one of them (use_mfp shadowed variable) actually is a bug, fix all of them. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: properly name driver lockingJohannes Berg2009-07-101-37/+37
| | | | | | | | | | Currently we call that cfg80211_put_dev(), but that is misleading. With the new convention of using 'rdev' for registered_device variables, also call that function cfg80211_unlock_rdev(). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: let SME control reassociation vs. associationJohannes Berg2009-07-101-3/+7
| | | | | | | | | | 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: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: limit to one pairwise cipher for associate()Johannes Berg2009-07-101-4/+6
| | | | | | | | | | | | | In this case, only one cipher makes sense, unlike for connect() where it may be possible to have the card or driver select. No changes to mac80211 due to the way the structs are laid out -- but the loop in net/mac80211/cfg.c will degrade to just zero or one passes. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: keep track of BSSesJohannes Berg2009-07-101-76/+68
| | | | | | | | | | | | | 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: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: managed mode wext compatibilityJohannes Berg2009-07-101-1/+1
| | | | | | | | | | | | | This adds code to make it possible to use the cfg80211 connect() API with wireless extensions, and because the previous patch added emulation of that API with auth() and assoc(), by extension also supports wext on that. At the same time, removes code from mac80211 for wext, but doesn't yet clean up mac80211's mlme code more. Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: emulate connect with auth/assocJohannes Berg2009-07-101-2/+2
| | | | | | | | | | | This adds code to cfg80211 so that drivers (mac80211 right now) that don't implement connect but rather auth/assoc can still be used with the nl80211 connect command. This will also be necessary for the wext compat code. Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: connect/disconnect APISamuel Ortiz2009-07-101-7/+361
| | | | | | | | | | | | | | | | | 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: Samuel Ortiz <samuel.ortiz@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: introduce nl80211 testmode commandJohannes Berg2009-07-101-0/+136
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: use proper allocation flagsJohannes Berg2009-07-101-21/+27
| | | | | | | | | | | Instead of hardcoding GFP_ATOMIC everywhere, add a new function parameter that gets the flags from the caller. Obviously then I need to update all callers (all of them in mac80211), and it turns out that now it's ok to use GFP_KERNEL in almost all places. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: prohibit scanning the same channel more than onceJohannes Berg2009-07-101-3/+30
| | | | | | | | | | | | | It isn't very useful to scan the same channel more than once during a given scan, and some hardware (notably iwlwifi) can only scan a limited number of channels at a time. To prevent any overflows, simply disallow scanning any channel multiple times in a given scan command. This is a small change in the userspace ABI, but the only user, wpa_supplicant, never asks for a scan with the same frequency listed twice. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: issue netlink notification when scan startsJohannes Berg2009-07-101-9/+30
| | | | | | | | To ease multiple apps working together smoothly, send a notification when a scan is started. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: pass netdev to change_virtual_intfJohannes Berg2009-07-101-7/+5
| | | | | | | | | If there was a reason I'm passing the ifidx I cannot remember it any more and don't see one now, so let's just pass the pointer itself. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Wireless: nl80211, fix lock imbalanceJiri Slaby2009-07-071-0/+1
| | | | | | | | Don't forget to unlock cfg80211_mutex in one fail path of nl80211_set_wiphy. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: validate station settingsJohannes Berg2009-06-191-16/+78
| | | | | | | | | | | | | When I disallowed interfering with stations on non-AP interfaces, I not only forget mesh but also managed interfaces which need this for the authorized flag. Let's actually validate everything properly. This fixes an nl80211 regression introduced by the interfering, under which wpa_supplicant -Dnl80211 could not properly connect. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: allow setting station parameters in meshAndrey Yurovsky2009-06-191-1/+2
| | | | | | | | | Mesh Point interfaces can also set parameters, for example plink_open is used to manually establish peer links from user-space (currently via iw). Add Mesh Point to the check in nl80211_set_station. Signed-off-by: Andrey Yurovsky <andrey@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: allow adding/deleting stations on meshAndrey Yurovsky2009-06-191-2/+4
| | | | | | | | | | Commit b2a151a288 added a check that prevents adding or deleting stations on non-AP interfaces. Adding and deleting stations is supported for Mesh Point interfaces, so add Mesh Point to that check as well. Signed-off-by: Andrey Yurovsky <andrey@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: use GFP_ATOMIC for michael mic failure messageBob Copeland2009-06-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nl80211_michael_mic_failure can be called in atomic context but does a GFP_KERNEL allocation. Fixes the error below: [ 126.793225] BUG: sleeping function called from invalid context at mm/slab.c:3055 [ 126.793234] in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper [ 126.793241] 2 locks held by swapper/0: [ 126.793246] #0: (&sc->rxbuflock){+.-.+.}, at: [<f94e1b46>] ath5k_tasklet_rx+0x34/0x55e [ath5k] [ 126.793294] #1: (rcu_read_lock){.+.+.+}, at: [<f92872f3>] __ieee80211_rx+0x7e/0x563 [mac80211] [ 126.793342] Pid: 0, comm: swapper Not tainted 2.6.30-rc7-wl #124 [ 126.793347] Call Trace: [ 126.793361] [<c014499d>] ? __debug_show_held_locks+0x1e/0x20 [ 126.793380] [<c011e9a3>] __might_sleep+0x100/0x107 [ 126.793386] [<c018ea99>] kmem_cache_alloc+0x35/0x170 [ 126.793393] [<c02e8bb1>] ? __alloc_skb+0x2e/0x117 [ 126.793397] [<c014517d>] ? mark_held_locks+0x43/0x5b [ 126.793402] [<c02e8bb1>] __alloc_skb+0x2e/0x117 [ 126.793419] [<f851a836>] nl80211_michael_mic_failure+0x2a/0x1fa [cfg80211] [ 126.793425] [<c01453b8>] ? trace_hardirqs_on_caller+0xf6/0x130 [ 126.793430] [<c01453fd>] ? trace_hardirqs_on+0xb/0xd [ 126.793444] [<f851b2b8>] cfg80211_michael_mic_failure+0x30/0x38 [cfg80211] [ 126.793463] [<f928bf69>] mac80211_ev_michael_mic_failure+0xfd/0x108 [mac80211] [ 126.793480] [<f9279fbd>] ieee80211_rx_h_michael_mic_verify+0xd4/0x117 [mac80211] [ 126.793499] [<f9285ef3>] ieee80211_invoke_rx_handlers+0xdde/0x1963 [mac80211] [ 126.793505] [<c0107152>] ? sched_clock+0x3f/0x64 [ 126.793511] [<c0107152>] ? sched_clock+0x3f/0x64 [ 126.793516] [<c01445d7>] ? trace_hardirqs_off+0xb/0xd [ 126.793521] [<c0107152>] ? sched_clock+0x3f/0x64 [ 126.793526] [<c0146454>] ? __lock_acquire+0x62c/0x1271 [ 126.793545] [<f9286fbb>] __ieee80211_rx_handle_packet+0x543/0x564 [mac80211] [ 126.793564] [<f9287757>] __ieee80211_rx+0x4e2/0x563 [mac80211] [ 126.793577] [<f94e1ff6>] ath5k_tasklet_rx+0x4e4/0x55e [ath5k] [ 126.793583] [<c0102b54>] ? restore_nocheck_notrace+0x0/0xe [ 126.793589] [<c0129aa2>] tasklet_action+0x92/0xe5 [ 126.793594] [<c0129f22>] __do_softirq+0xb1/0x182 [ 126.793599] [<c012a023>] do_softirq+0x30/0x48 [ 126.793603] [<c012a19b>] irq_exit+0x3d/0x74 [ 126.793609] [<c0358016>] do_IRQ+0x76/0x8c [ 126.793613] [<c010312e>] common_interrupt+0x2e/0x34 [ 126.793618] [<c014007b>] ? timer_list_show+0x277/0x939 [ 126.793630] [<f88eb321>] ? acpi_idle_enter_bm+0x266/0x291 [processor] [ 126.793636] [<c02d00f6>] cpuidle_idle_call+0x6a/0x9c [ 126.793640] [<c0101cc8>] cpu_idle+0x53/0x87 [ 126.793645] [<c0344510>] rest_init+0x6c/0x6e [ 126.793651] [<c04dd74d>] start_kernel+0x286/0x28b [ 126.793656] [<c04dd037>] __init_begin+0x37/0x3c Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: disallow interfering with stations on non-AP (part 2)Johannes Berg2009-06-031-0/+6
| | | | | | | | | | | | | On non-AP interfaces userspace has no business interfering with the station management, this can confuse mac80211 (and other drivers probably wouldn't support it anyway). Allow adding and removing stations only on AP interfaces. (Reconcile this w/ previous version of patch posted with same subject... -- JWL) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: bounce scan request back to userspaceJohannes Berg2009-06-031-5/+38
| | | | | | | | | | When a scan finishes only the program that asked for it knows what kind of scan it was; let's tell everybody else about the scan parameters as well so they can evaluate the result of the scan better. Also helps with debugging. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: validate AID of stations being addedJohannes Berg2009-06-031-0/+4
| | | | | | | | | | | | We have some validation code in mac80211 but said code will force an invalid AID to 0 which isn't a valid AID either; instead require a valid AID (1-2007) to be passed in from userspace in cfg80211 already. Also move the code before the race comment since it can only be executed during STA addition and thus is not racy. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: Eliminate reference to BUS_ID_SIZE.David S. Miller2009-05-261-1/+1
| | | | | | | It's going away. Just leave the constant "20" here so that behavior doesn't change. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-05-251-30/+36
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * cfg80211: fix in nl80211_set_reg()Luis R. Rodriguez2009-05-201-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | There is a race on access to last_request and its alpha2 through reg_is_valid_request() and us possibly processing first another regulatory request on another CPU. We avoid this improbably race by locking with the cfg80211_mutex as we should have done in the first place. While at it add the assert on locking on reg_is_valid_request(). Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * cfg80211: cleanup return calls on nl80211_set_reg()Luis R. Rodriguez2009-05-201-6/+13
| | | | | | | | | | | | | | | | | | This has no functional change, but it will make the race fix easier to spot in my next patch. Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * cfg80211: return immediately if num reg rules > NL80211_MAX_SUPP_REG_RULESLuis R. Rodriguez2009-05-201-1/+1
| | | | | | | | | | | | | | | | | | | | This has no functional change except we save a kfree(rd) and allows us to clean this code up a bit after this. We do avoid an unnecessary kfree(NULL) but calling that was OK too. Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * nl80211: Validate NL80211_ATTR_KEY_SEQ lengthJouni Malinen2009-05-201-0/+1
| | | | | | | | | | | | | | | | Validate RSC (NL80211_ATTR_KEY_SEQ) length in nl80211/cfg80211 instead of having to do this in all the drivers. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * cfg80211: check allowed channel type upon userspace requestsLuis R. Rodriguez2009-05-201-22/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Thanks to nl80211 userspace can be very specific upon device configuration. Before processing the request for the new HT40 channel types (HT40- or HT40+) we need to ensure we can use them regulatory-wise. This wasn't required with wireless extensions as specifying the channel type wasn't not available and configuration was done towards the end implicitly upon association or reception of beacons from the AP. For the new nl80211 we have to check this when configuring the interfaces explicitly. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | wireless: Use genl_register_family_with_ops()Michał Mirosław2009-05-211-8/+3
|/ | | | | | | Use genl_register_family_with_ops() instead of a copy. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: use NLMSG_DEFAULT_SIZE in nlmsg_new() allocationsPablo Neira Ayuso2009-05-191-16/+16
| | | | | | | | | | | | | | | nlmsg_new() adds the size of the netlink header to the value that has been passed as parameter. If NLMSG_GOODSIZE is selected, we request an allocation of one memory page plus the size of the header. Instead, NLMSG_DEFAULT_SIZE should be used since it already substracts the size of the Netlink header. I have the impression that the similar naming in both constant is error prone when using it with nlmsg_new(). This is already documented in include/net/netlink.h Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* nl80211: Add RSC configuration for new keysJouni Malinen2009-05-131-0/+5
| | | | | | | | | | | | | When setting a key with NL80211_CMD_NEW_KEY, we should allow the key sequence number (RSC) to be set in order to allow replay protection to work correctly for group keys. This patch documents this use for nl80211 and adds the couple of missing pieces in nl80211/cfg80211 and mac80211 to support this. In addition, WEXT SIOCSIWENCODEEXT compat processing in cfg80211 is extended to handle the RSC (this was already specified in WEXT, but just not implemented in cfg80211/mac80211). Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: Add IEEE 802.1X PAE control for station modeJouni Malinen2009-05-131-0/+3
| | | | | | | | | | | | | | | Add a new NL80211_ATTR_CONTROL_PORT flag for NL80211_CMD_ASSOCIATE to allow user space to indicate that it will control the IEEE 802.1X port in station mode. Previously, mac80211 was always marking the port authorized in station mode. This was enough when drop_unencrypted flag was set. However, drop_unencrypted can currently be controlled only with WEXT and the current nl80211 design does not allow fully secure configuration. Fix this by providing a mechanism for user space to control the IEEE 802.1X port in station mode (i.e., do the same that we are already doing in AP mode). Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: improve station flags handlingJohannes Berg2009-05-131-8/+30
| | | | | | | | | | | | | | | It is currently not possible to modify station flags, but that capability would be very useful. This patch introduces a new nl80211 attribute that contains a set/mask for station flags, and updates the internal API (and mac80211) to mirror that. The new attribute is parsed before falling back to the old so that userspace can specify both (if it can) to work on all kernels. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: Validate MFP flag type when parsing STA flagsJouni Malinen2009-05-131-0/+1
| | | | | | | | | | NL80211_STA_FLAG_MFP was forgotten from sta_flags_policy. The previous version added the flag due to the loop used in parse_station_flags, but the proper behavior would be to allow nla_parse_nested() to go through the policy for all flags. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: implement wext key handlingJohannes Berg2009-05-131-38/+19
| | | | | | | | | | | | | | | | | | | Move key handling wireless extension ioctls from mac80211 to cfg80211 so that all drivers that implement the cfg80211 operations get wext compatibility. Note that this drops the SIOCGIWENCODE ioctl support for getting IW_ENCODE_RESTRICTED/IW_ENCODE_OPEN. This means that iwconfig will no longer report "Security mode:open" or "Security mode:restricted" for mac80211. However, what we displayed there (the authentication algo used) was actually wrong -- linux/wireless.h states that this setting is meant to differentiate between "Refuse non-encoded packets" and "Accept non-encoded packets". (Combined with "cfg80211: fix a couple of bugs with key ioctls". -- JWL) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: disallow interfering with stations on non-APJohannes Berg2009-05-111-0/+12
| | | | | | | | | | On non-AP interfaces userspace has no business interfering with the station management, this can confuse mac80211 (and other drivers probably wouldn't support it anyway). Allow adding and removing stations only on AP interfaces. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211 : Add support for configuring MFPJouni Malinen2009-05-111-0/+12
| | | | | | | | | | | | | | | | | NL80211_CMD_ASSOCIATE request must be able to indicate whether management frame protection (IEEE 802.11w) is being used. mac80211 was able to use MFP in client mode only with WEXT, but the new NL80211_ATTR_USE_MFP attribute will allow this to be done with nl80211, too. Since we are currently using nl80211 for MFP only with drivers that use user space SME, only MFP disabled and required values are used. However, the NL80211_ATTR_USE_MFP attribute is an enum that can be extended with MFP optional in the future, if that is needed with some drivers (e.g., if the RSN IE is generated by the driver). Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: make nl80211_send_mlme_timeout() staticLuis R. Rodriguez2009-05-061-3/+3
| | | | | | | | | | | | Fixes sparse complaint: CHECK net/wireless/nl80211.c net/wireless/nl80211.c:3694:6: warning: symbol 'nl80211_send_mlme_timeout' was not declared. Should it be static? Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: Add event for authentication/association timeoutJouni Malinen2009-04-221-0/+49
| | | | | | | | | SME needs to be notified when the authentication or association attempt times out and MLME has stopped processing in order to allow the SME to decide what to do next. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: allow configuring IBSS beacon intervalJohannes Berg2009-04-221-1/+11
| | | | | | | | | Make the JOIN_IBSS command look at the beacon interval attribute to see if the user requested a specific beacon interval, if not default to 100 TU (wext too). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: clear WEXT SSID when clearing IBSSJohannes Berg2009-04-221-2/+2
| | | | | | | | | | When we leave an IBSS, we should clear the SSID and not just the BSSID, but since WEXT allows configuring while the interface is down we must not clear it when leaving due to taking the iface down, so some complications are needed. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: Add set/get for frag/rts threshold and retry limitsJouni Malinen2009-04-221-0/+95
| | | | | | | | | | | | | | | | Add new nl80211 attributes that can be used with NL80211_CMD_SET_WIPHY and NL80211_CMD_GET_WIPHY to manage fragmentation/RTS threshold and retry limits. Since these values are stored in struct wiphy, remove the local copy from mac80211 where feasible (frag & rts threshold). The retry limits are currently needed in struct ieee80211_conf, but these could be eventually removed since the driver should have access to the values in struct wiphy. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/nl80211: add IBSS APIJohannes Berg2009-04-221-12/+170
| | | | | | | | | | | | | | | | | | | | | | | This adds IBSS API along with (preliminary) wext handlers. The wext handlers can only do IBSS so you need to call them from your own wext handlers if the mode is IBSS. The nl80211 API requires * an SSID * a channel (frequency) for the case that a new IBSS has to be created It optionally supports * a flag to fix the channel * a fixed BSSID The cfg80211 code also takes care to leave the IBSS before the netdev is set down. If wireless extensions are used, it also caches values when the interface is down and instructs the driver to join when the interface is set up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: send wiphy along with netdevJohannes Berg2009-04-221-2/+5
| | | | | | | | | | When listing all wireless netdevs in the system this is useful to print which wiphy they belong to. Just add the attribute, any program that doesn't care will just ignore it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: add cipher capabilitiesJohannes Berg2009-04-221-1/+13
| | | | | | | | | This adds the necessary code and fields to let drivers specify their cipher capabilities and exports them to userspace. Also update mac80211 to export the ciphers it has. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: send regulatory beacon hint events to userspaceLuis R. Rodriguez2009-04-221-0/+54
| | | | | | | | | | | | | | This informs userspace when a change has occured on a world roaming wiphy's channel which has lifted some restrictions due to a regulatory beacon hint. Because this is now sent to userspace through the regulatory multicast group we remove the debug prints we used to use as they are no longer necessary. Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: add netlink channel put helperLuis R. Rodriguez2009-04-221-14/+27
| | | | | | | | | This adds a netlink channel put helper, nl80211_msg_put_channel(), which we will also make use of later for the beacon hints events. Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 20:54:22 +0000