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* net/wireless/Kconfig: clarify the description for CONFIG_WIRELESS_EXT_SYSFSFlorian Mickler2008-09-02
| | | | | | | | | | | | Current setup with hal and NetworkManager will fail to work without newest hal version with this config option disabled. Although this will solve itself by time, at the moment it is dishonest to say that we don't know any software that uses it, if there are many many people relying on old hal versions. Signed-off-by: Florian Mickler <florian@mickler.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wext: Send name on eventsJamal Hadi Salim2008-08-13
| | | | | | | | In the minimal the wireless extensions oughta send at least the name in addition to the ifindex. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
* nl80211: fix dump callbacksJohannes Berg2008-07-29
| | | | | | | | | | | Julius Volz pointed out that the dump callbacks in nl80211 were broken and fixed one of them. This patch fixes the other three and also addresses the TODOs there. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Julius Volz <juliusv@google.com> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* netns: Use net_eq() to compare net-namespaces for optimization.YOSHIFUJI Hideaki2008-07-20
| | | | | | | | Without CONFIG_NET_NS, namespace is always &init_net. Compiler will be able to omit namespace comparisons with this patch. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: make sysfs bits optional and deprecate themJohannes Berg2008-07-14
| | | | | | | | | | | The /sys/class/net/*/wireless/ direcory is, as far as I know, not used by anyone. Additionally, the same data is available via wext ioctls. Hence the sysfs files are pretty much useless. This patch makes them optional and schedules them for removal. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* net/wireless/nl80211.c: fix endless Netlink callback loop.Julius Volz2008-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although I only tested similar code (I don't use any of this wireless code), the state maintainance between Netlink dump callback invocations seems wrong here and should lead to an endless loop. There are also other examples in the same file which might have the same problem. Perhaps someone can actually test this (or refute my logic). Take the simple example with only one element in the list (which should fit into the message): 1. invocation: Start: idx = 0, start = 0 Loop: condition (++idx < start) => (1 < 0) => false => no continue, fill one entry, exit loop, return skb->len > 0 2. invocation: Start: idx = 0, start = 1 Loop: condition (++idx < start) => (1 < 1) => false => no continue, fill the same entry again, exit loop, return skb->len > 0 3. invocation: Same as 2. invocation, endless invocation of callback. Also, iterations where the filling of an element fails should not be counted as completed, so idx should not be incremented in this case. Signed-off-by: Julius Volz <juliusv@google.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wext: Create IW_REQUEST_FLAG_COMPAT and set it as needed.David S. Miller2008-06-16
| | | | | | | Now low-level WEXT ioctl handlers can do compat handling when necessary. Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Dispatch and handle compat ioctls entirely in net/wireless/wext.cDavid S. Miller2008-06-16
| | | | | | | | | Next we can kill the hacks in fs/compat_ioctl.c and also dispatch compat ioctls down into the driver and 80211 protocol helper layers in order to handle iw_point objects embedded in stream replies which need to be translated. Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Pull top-level ioctl dispatch logic into helper function.David S. Miller2008-06-16
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Pass iwreq pointer down into standard/private handlers.David S. Miller2008-06-16
| | | | | | They have no need to see the object as an ifreq. Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Parameterize the standard/private handlers.David S. Miller2008-06-16
| | | | | | | The WEXT standard and private handlers to use are now arguments to wireless_process_ioctl(). Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Pull ioctl permission checking out into helper function.David S. Miller2008-06-16
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Extract private call iw_point handling into seperate functions.David S. Miller2008-06-16
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Extract standard call iw_point handling into seperate function.David S. Miller2008-06-16
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Make adjust_priv_size() take a "struct iw_point *".David S. Miller2008-06-16
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* wext: Remove inline from get_priv_size() and adjust_priv_size().David S. Miller2008-06-16
| | | | | | The compiler inlines when appropriate. Signed-off-by: David S. Miller <davem@davemloft.net>
* mac80211: implement EU regulatory domainTony Vroon2008-06-14
| | | | | | | | | | | Implement missing EU regulatory domain for mac80211. Based on the information in IEEE 802.11-2007 (specifically pages 1142, 1143 & 1148) and ETSI 301 893 (V1.4.1). With thanks to Johannes Berg. Signed-off-by: Tony Vroon <tony@linx.net> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵David S. Miller2008-06-10
|\ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tg3.c drivers/net/wireless/rt2x00/rt2x00dev.c net/mac80211/ieee80211_i.h
| * netlink: Improve returned error codesThomas Graf2008-06-03
| | | | | | | | | | | | | | | | | | | | | | Make nlmsg_trim(), nlmsg_cancel(), genlmsg_cancel(), and nla_nest_cancel() void functions. Return -EMSGSIZE instead of -1 if the provided message buffer is not big enough. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | wireless: Add missing locking to cfg80211_dev_renameEric W. Biederman2008-05-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | device_rename only performs useful and race free validity checking at the optional sysfs level so depending on it for all of the validity checking in cfg80211_dev_rename is racy. Instead implement all of the needed validity checking and locking in cfg80211_dev_rename. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | wireless: use get/put_unaligned_* helpersHarvey Harrison2008-05-14
|/ | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵David S. Miller2008-04-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/ehea/ehea_main.c drivers/net/wireless/iwlwifi/Kconfig drivers/net/wireless/rt2x00/rt61pci.c net/ipv4/inet_timewait_sock.c net/ipv6/raw.c net/mac80211/ieee80211_sta.c
| * nl80211: fix STA AID bugJohannes Berg2008-04-07
| | | | | | | | | | | | | | | | This fixes the STA AID setting and actually makes hostapd/mac80211 work properly in presence of power-saving stations. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | cfg80211: default to regulatory max power for channelJohn W. Linville2008-04-08
| | | | | | | | | | | | | | If the driver does not specify a maximum power output, default to the regulatory max. Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | cfg80211: don't export ieee80211_get_channelJohannes Berg2008-03-27
| | | | | | | | | | | | | | | | | | | | | | | | This patch makes ieee80211_get_channel a static inline defined in cfg80211's header file which simply calls __ieee80211_get_channel to avoid symbol clashes with the ieee80211 code. The problem was pointed out by David Miller, thanks! Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: David Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'net-2.6.26-netns-20080326' of ↵David S. Miller2008-03-25
|\ \ | | | | | | | | | git://git.linux-ipv6.org/gitroot/yoshfuji/linux-2.6-dev
| * | [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.YOSHIFUJI Hideaki2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
* | | wireless: add wiphy channel freq to channel struct lookup helperJohannes Berg2008-03-25
|/ / | | | | | | | | | | | | | | Add ieee80211_get_channel() which gets you a channel struct for a specific wiphy if that channel is present in that wiphy. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | nl80211/cfg80211: support for mesh, sta dumpingLuis Carlos Cobo2008-03-06
| | | | | | | | | | | | | | | | | | Added support for mesh id and mesh path operation as well as station structure dumping. Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | wireless: update US regulatory domainTomas Winkler2008-02-29
| | | | | | | | | | | | | | This patch adds channels to US regulatory domain Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | nl80211: Add monitor interface configuration flagsMichael Wu2008-02-29
| | | | | | | | | | | | | | | | This allows precise control over what a monitor interface shows. Signed-off-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | wireless: Fix WARN_ON() with ieee802.11bIvo van Doorn2008-02-29
| | | | | | | | | | | | | | | | | | | | | | | | When the driver registers a IEEE80211_BAND_2GHZ band, it can either be 802.11b or 802.11g. But when 802.11b rates are registered "want" will be 3 (since 4 rates are being registered, and each of those 4 rates will decrease "want"). Since this is a correct situation, there is no need to trigger a WARN_ON() for this. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | wireless: fix ERP rate flagsJohannes Berg2008-02-29
| | | | | | | | | | | | | | | | | | In the rate API patch I accidentally reverted the test for ERP rates, this fixes it. All rates except 1, 2, 5.5 and 11 MBit are ERP rates, not those. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | nl80211: export hardware bitrate/channel capabilitiesJohannes Berg2008-02-29
| | | | | | | | | | | | | | | | This makes nl80211 export the hardware bitrate/channel capabilities as registered in a wiphy. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | cfg80211 API for channels/bitrates, mac80211 and driver conversionJohannes Berg2008-02-29
|/ | | | | | | | | | | | | | | | | | | | | | | | | | This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* WEXT: remove unused variableMasakazu Mokuno2008-01-28
| | | | | | | As event_type_pk_size[] is not used, Remove it. Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* net/wireless/Kconfig: whitespace correctionsJohn W. Linville2008-01-28
| | | | | Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cfg80211/nl80211: implement station attribute retrievalJohannes Berg2008-01-28
| | | | | | | | | | | After a station is added to the kernel's structures, userspace has to be able to retrieve statistics about that station, especially whether the station was idle and how much bytes were transferred to and from it. This adds the necessary code to nl80211. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cfg80211/nl80211: station handlingJohannes Berg2008-01-28
| | | | | | | | This patch adds station handling to cfg80211/nl80211. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cfg80211/nl80211: add beacon settingsJohannes Berg2008-01-28
| | | | | | | | | This adds the necessary API to cfg80211/nl80211 to allow changing beaconing settings. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cfg80211/nl80211: introduce key handlingJohannes Berg2008-01-28
| | | | | | | | | | This introduces key handling to cfg80211/nl80211. Default and group keys can be added, changed and removed; sequence counters for each key can be retrieved. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Consolidate net namespace related proc files creation.Denis V. Lunev2008-01-28
| | | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make rtnetlink infrastructure network namespace aware (v3)Denis V. Lunev2008-01-28
| | | | | | | | | | | | | | | | | After this patch none of the netlink callback support anything except the initial network namespace but the rtnetlink infrastructure now handles multiple network namespaces. Changes from v2: - IPv6 addrlabel processing Changes from v1: - no need for special rtnl_unlock handling - fixed IPv6 ndisc Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [WIRELESS] WEXT: Fix userspace corruption on 64-bit.David S. Miller2007-11-20
| | | | | | | | | | | | | | | | | | | On 64-bit systems sizeof(struct ifreq) is 8 bytes larger than sizeof(struct iwreq). For GET calls, the wireless extension code copies back into userspace using sizeof(struct ifreq) but userspace and elsewhere only allocates a "struct iwreq". Thus, this copy writes past the end of the iwreq object and corrupts whatever sits after it in memory. Fix the copy_to_user() length. This particularly hurts the compat case because the wireless compat code uses compat_alloc_userspace() and right after this allocated buffer is the current bottom of the user stack, and that's what gets overwritten by the copy_to_user() call. Signed-off-by: David S. Miller <davem@davemloft.net>
* Driver core: change add_uevent_var to use a structKay Sievers2007-10-12
| | | | | | | | | | | | | | | | | | This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [WIRELESS]: Fix Kconfig.Andrew Morton2007-10-10
| | | | | | | Seems that a bare "depends" is no longer allowed in Sam's kbuild tree. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NL80211]: add netlink interface to cfg80211Johannes Berg2007-10-10
| | | | | | Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix race when opening a proc file while a network namespace is exiting.Eric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem: proc_net files remember which network namespace the are against but do not remember hold a reference count (as that would pin the network namespace). So we currently have a small window where the reference count on a network namespace may be incremented when opening a /proc file when it has already gone to zero. To fix this introduce maybe_get_net and get_proc_net. maybe_get_net increments the network namespace reference count only if it is greater then zero, ensuring we don't increment a reference count after it has gone to zero. get_proc_net handles all of the magic to go from a proc inode to the network namespace instance and call maybe_get_net on it. PROC_NET the old accessor is removed so that we don't get confused and use the wrong helper function. Then I fix up the callers to use get_proc_net and handle the case case where get_proc_net returns NULL. In that case I return -ENXIO because effectively the network namespace has already gone away so the files we are trying to access don't exist anymore. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make the device list and device lookups per namespace.Eric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes most of the generic device layer network namespace safe. This patch makes dev_base_head a network namespace variable, and then it picks up a few associated variables. The functions: dev_getbyhwaddr dev_getfirsthwbytype dev_get_by_flags dev_get_by_name __dev_get_by_name dev_get_by_index __dev_get_by_index dev_ioctl dev_ethtool dev_load wireless_process_ioctl were modified to take a network namespace argument, and deal with it. vlan_ioctl_set and brioctl_set were modified so their hooks will receive a network namespace argument. So basically anthing in the core of the network stack that was affected to by the change of dev_base was modified to handle multiple network namespaces. The rest of the network stack was simply modified to explicitly use &init_net the initial network namespace. This can be fixed when those components of the network stack are modified to handle multiple network namespaces. For now the ifindex generator is left global. Fundametally ifindex numbers are per namespace, or else we will have corner case problems with migration when we get that far. At the same time there are assumptions in the network stack that the ifindex of a network device won't change. Making the ifindex number global seems a good compromise until the network stack can cope with ifindex changes when you change namespaces, and the like. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make /proc/net per network namespaceEric W. Biederman2007-10-10
| | | | | | | | | | | | | | | | | | This patch makes /proc/net per network namespace. It modifies the global variables proc_net and proc_net_stat to be per network namespace. The proc_net file helpers are modified to take a network namespace argument, and all of their callers are fixed to pass &init_net for that argument. This ensures that all of the /proc/net files are only visible and usable in the initial network namespace until the code behind them has been updated to be handle multiple network namespaces. Making /proc/net per namespace is necessary as at least some files in /proc/net depend upon the set of network devices which is per network namespace, and even more files in /proc/net have contents that are relevant to a single network namespace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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