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2022-07-15wifi: mac80211: remove stray printkJohannes Berg
Unfortunately, a printk snuck into a previous patch, remove it. Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: support MLO authentication/association with one linkJohannes Berg
It might seem a bit pointless to do a multi-link operation connection with just a single link, but this is already a big change, so for now, limit MLO connections to a single link. Extending that to multiple links will require * work on parsing the multi-link element with STA profile properly, including element fragmentation; * checking the per-link status in the multi-link element * implementing logic to have active/inactive links to let drivers decide which links should be active; * implementing multicast RX deduplication; * and likely more. For now this is still useful since it lets us do multi-link connections for the purposes of testing APIs and the higher layers such as wpa_supplicant. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: add cfg80211_get_iftype_ext_capa()Johannes Berg
Add a helper function cfg80211_get_iftype_ext_capa() to look up interface type-specific (extended) capabilities. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: fix some attribute policy entriesJohannes Berg
The new NL80211_CMD_ADD_LINK_STA and NL80211_CMD_MODIFY_LINK_STA commands have strict policy validation, so fix the policy so it can be validated correctly. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: reject fragmented and non-inheritance elementsJohannes Berg
The underlying mac80211 code cannot deal with fragmented elements for purposes of sorting the elements into the association frame, so reject those inside the link. We might want to reject them inside the assoc frame, but they're used today for FILS, so cannot do that. The non-inheritance element inside the links similarly cannot be handled by mac80211, and outside the links it makes no sense. Reject both since using them could lead to an incorrect implementation. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: reject link specific elements on assoc linkJohannes Berg
When we associate, we'll include all the elements for the link we're sending the association request on in the frame and the specific ones for other links in the multi-link element container. Prohibit adding link-specific elements for the association link. Fixes: d648c23024bd ("wifi: nl80211: support MLO in auth/assoc") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: set country_elem to NULLJohannes Berg
The link loop will always have a valid link so that it's always set, but static checkers don't always see that, so set it to NULL explicitly. Fixes: efbabc116500 ("cfg80211: Indicate MLO connection info in connect and roam callbacks") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: advertise MLO supportJohannes Berg
At least while we don't have any more specific interface combinations support, add a simple flag for MLO support, we can keep this later based on something other than the wiphy flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: allow link ID in set_wiphy with frequencyIlan Peer
This simplifies hostapd implementation, since it didn't switch to NL80211_CMD_SET_CHANNEL. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211/mac80211: Support control port TX from specific linkAndrei Otcheretianski
In case of authentication with a legacy station, link addressed EAPOL frames should be sent. Support it. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: Support MLD parameters in nl80211_set_station()Andrei Otcheretianski
Set the MLD parameters in NL80211_CMD_SET_STATION handling to be able to change an MLD station. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: check MLO support in authenticateJohannes Berg
We should check that MLO connections are supported before attempting to authenticate with MLO parameters, check that. Fixes: d648c23024bd ("wifi: nl80211: support MLO in auth/assoc") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: set BSS to NULL if IS_ERR()Johannes Berg
If the BSS lookup returned an error, set it to NULL so we don't try to free it. Fixes: d648c23024bd ("wifi: nl80211: support MLO in auth/assoc") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: add EML/MLD capabilities to per-iftype capabilitiesJohannes Berg
We have the per-interface type capabilities, currently for extended capabilities, add the EML/MLD capabilities there to have this advertised by the driver. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: better validate link ID for stationsJohannes Berg
If we add a station on an MLD, we need a link ID to see where it lives (by default). Validate the link ID against the valid_links. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: clean up links appropriatelyJohannes Berg
This was missing earlier, we need to remove links when interfaces are being destroyed, and we also need to stop (AP) operations when a link is being destroyed. Address these issues to remove many warnings that will otherwise appear in mac80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: extend cfg80211_rx_assoc_resp() for MLOJohannes Berg
Extend the cfg80211_rx_assoc_resp() to cover multiple BSSes, the AP MLD address and local link addresses for MLO. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: put cfg80211_rx_assoc_resp() arguments into a structJohannes Berg
For MLO we'll need a lot more arguments, including all the BSS pointers and link addresses, so move the data to a struct to be able to extend it more easily later. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: adjust assoc comeback for MLOJohannes Berg
We only report the BSSID to userspace, so change the argument from BSS struct pointer to AP address, which we'll use to carry either the BSSID or AP MLD address. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: prepare association failure APIs for MLOJohannes Berg
For MLO, we need the ability to report back multiple BSS structures to release, as well as the AP MLD address (if attempting to make an MLO connection). Unify cfg80211_assoc_timeout() and cfg80211_abandon_assoc() into a new cfg80211_assoc_failure() that gets a structure parameter with the necessary data. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: remove BSS pointer from cfg80211_disassoc_requestJohannes Berg
The race described by the comment in mac80211 hasn't existed since the locking rework to use the same lock and for MLO we need to pass the AP MLD address, so just pass the BSSID or AP MLD address instead of the BSS struct pointer, and adjust all the code accordingly. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: acquire wdev mutex for dump_surveyJohannes Berg
At least the quantenna driver calls wdev_chandef() here which now requires the lock, so acquire it. Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: drop BSS elements from assoc trace for nowJohannes Berg
For multi-link operation, this cannot work as the req->bss pointer will be NULL, and we'll need to do more work on this to really add tracing for the MLO case here. Drop the BSS elements for now as they're not the most useful thing, and it's hard to size things correctly for the MLO case (without adding a lot of code that's also executed when tracing isn't enabled.) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: enable setting the link address at new stationShaul Triebitz
Since for an MLD station the default link is added together with the add station command, allow also setting the link MAC address. Otherwise, it is needed to use the modify link API only for setting the link MAC address. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: hold wdev mutex for station APIsJohannes Berg
Since this will need to refer - at least in part - to the link stations of an MLD, hold the wdev mutex for driver convenience. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: hold wdev mutex for channel switch APIsJohannes Berg
Since we deal with links in an MLD here, hold the wdev mutex now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: nl80211: hold wdev mutex in add/mod/del link stationJohannes Berg
Since we deal with links, and that requires looking at wdev links, we should hold the wdev mutex for driver convenience. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211/mac80211: separate link params from station paramsShaul Triebitz
Put the link_station_parameters structure in the station_parameters structure (and remove the station_parameters fields already existing in link_station_parameters). Now, for an MLD station, the default link is added together with the station. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: add API to add/modify/remove a link stationShaul Triebitz
Add an API for adding/modifying/removing a link of a station. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: Allow MLO TX with link source addressAndrei Otcheretianski
Management frames are transmitted from link address and not device address. Allow that. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: cfg80211: use strscpy to replace strlcpyXueBing Chen
The strlcpy should not be used because it doesn't limit the source length. Preferred is strscpy. Signed-off-by: XueBing Chen <chenxuebing@jari.cn> Link: https://lore.kernel.org/r/2d2fcbf7.e33.181eda8e70e.Coremail.chenxuebing@jari.cn Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
include/net/sock.h 310731e2f161 ("net: Fix data-races around sysctl_mem.") e70f3c701276 ("Revert "net: set SK_MEM_QUANTUM to 4096"") https://lore.kernel.org/all/20220711120211.7c8b7cba@canb.auug.org.au/ net/ipv4/fib_semantics.c 747c14307214 ("ip: fix dflt addr selection for connected nexthop") d62607c3fe45 ("net: rename reference+tracking helpers") net/tls/tls.h include/net/tls.h 3d8c51b25a23 ("net/tls: Check for errors in tls_device_init") 587903142308 ("tls: create an internal header") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-11wifi: nl80211: fix sending link ID info of associated BSSVeerendranath Jakkam
commit dd374f84baec ("wifi: nl80211: expose link ID for associated BSSes") used a top-level attribute to send link ID of the associated BSS in the nested attribute NL80211_ATTR_BSS. But since NL80211_ATTR_BSS is a nested attribute of the attributes defined in enum nl80211_bss, define a new attribute in enum nl80211_bss and use it for sending the link ID of the BSS. Fixes: dd374f84baec ("wifi: nl80211: expose link ID for associated BSSes") Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20220708122607.1836958-1-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-11wifi: cfg80211: fix a comment in cfg80211_mlme_mgmt_tx()Veerendranath Jakkam
A comment in cfg80211_mlme_mgmt_tx() is describing this API used only for transmitting action frames. Fix the comment since cfg80211_mlme_mgmt_tx() can be used to transmit any management frame. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/20220708165545.2072999-1-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-11wifi: nl80211: Fix reading NL80211_ATTR_MLO_LINK_ID in nl80211_pre_doitVeerendranath Jakkam
nl80211_pre_doit() using nla_get_u16() to read u8 attribute NL80211_ATTR_MLO_LINK_ID. Fix this by using nla_get_u8() to read NL80211_ATTR_MLO_LINK_ID attribute. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/1657517683-5724-1-git-send-email-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: nl80211: retrieve EHT related elements in AP modeAloka Dixit
Add support to retrieve EHT capabilities and EHT operation elements passed by the userspace in the beacon template and store the pointers in struct cfg80211_ap_settings to be used by the drivers. Co-developed-by: Vikram Kandukuri <quic_vikram@quicinc.com> Signed-off-by: Vikram Kandukuri <quic_vikram@quicinc.com> Co-developed-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com> Link: https://lore.kernel.org/r/20220523064904.28523-1-quic_alokad@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: cfg80211: Increase akm_suites array size in cfg80211_crypto_settingsVeerendranath Jakkam
Increase akm_suites array size in struct cfg80211_crypto_settings to 10 and advertise the capability to userspace. This allows userspace to send more than two AKMs to driver in netlink commands such as NL80211_CMD_CONNECT. This capability is needed for implementing WPA3-Personal transition mode correctly with any driver that handles roaming internally. Currently, the possible AKMs for multi-AKM connect can include PSK, PSK-SHA-256, SAE, FT-PSK and FT-SAE. Since the count is already 5, increasing the akm_suites array size to 10 should be reasonable for future usecases. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/1653312358-12321-1-git-send-email-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: cfg80211: remove chandef check in cfg80211_cac_event()Johannes Berg
The current check only worked for AP mode, but we can do radar detection in mesh as well (for example). We could try to check this using wdev_chandef(), but we also don't really care since the chandef is passed in and we have no need to use it anymore (since we added the argument in commit d2859df5e7f0 ("cfg80211/mac80211: DFS setup chandef for cac event")). Change-Id: I856e4344d5e64ff4d2eead0b4c53b11f264be9b8 Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: nl80211: relax wdev mutex check in wdev_chandef()Johannes Berg
In many cases we might get here from driver code that's not really set up to care about the locking, and for the non-MLO cases we really don't care so much about it. So relax the checking here for now, perhaps we should even remove it completely since we might not really care if we point to an invalid link's chandef and can require the caller to check the link validity first. Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: nl80211: acquire wdev mutex earlier in start_apJohannes Berg
We need to hold the wdev mutex already in order to call nl80211_parse_tx_bitrate_mask(), so acquire it earlier. Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: nl80211: hold wdev mutex for tid configJohannes Berg
We need wdev_chandef() in this code, which now requires the wdev mutex due to the per-link nature. Hold it here to make sure we can access the link. Reported-by: syzbot+b4e9aa0f32ffd9902442@syzkaller.appspotmail.com Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-01wifi: cfg80211: handle IBSS in channel switchJohannes Berg
Prior to commit 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") the interface type didn't really matter here, but now we need to handle all of the possible cases. Add IBSS ("ADHOC") and handle it. Fixes: 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Reported-by: syzbot+90d912872157e63589e4@syzkaller.appspotmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-29wifi: cfg80211: Allow P2P client interface to indicate port authorizationVinayak Yadawad
In case of 4way handshake offload, cfg80211_port_authorized enables driver to indicate successful 4way handshake to cfg80211 layer. Currently this path of port authorization is restricted to interface type NL80211_IFTYPE_STATION. This patch extends the use of port authorization API for P2P client as well. Signed-off-by: Vinayak Yadawad <vinayak.yadawad@broadcom.com> Link: https://lore.kernel.org/r/ef25cb49fcb921df2e5d99e574f65e8a009cc52c.1655905440.git.vinayak.yadawad@broadcom.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20cfg80211: Indicate MLO connection info in connect and roam callbacksVeerendranath Jakkam
The MLO links used for connection with an MLD AP are decided by the driver in case of SME offloaded to driver. Add support for the drivers to indicate the information of links used for MLO connection in connect and roam callbacks, update the connected links information in wdev from connect/roam result sent by driver. Also, send the connected links information to userspace. Add a netlink flag attribute to indicate that userspace supports handling of MLO connection. Drivers must not do MLO connection when this flag is not set. This is to maintain backwards compatibility with older supplicant versions which doesn't have support for MLO connection. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: nl80211: expose link ID for associated BSSesJohannes Berg
When retrieving scan data, expose not just whether or not the interface (possibly an MLD) is associated to the BSS or not, but also on which link ID if it is an MLD. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: nl80211: expose link information for interfacesJohannes Berg
When getting/dumping an interface, expose information about valid links. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: cfg80211: add optional link add/remove callbacksJohannes Berg
Add some optional callbacks for link add/remove so that drivers can react here. Initially, I thought it would be sufficient to just create the link in start_ap etc., but it turns out that's not so simple, since there are quite a few callbacks that can be called: if they're erroneously without start_ap, things might crash. Thus it might be easier for drivers to allocate all the necessary data structures immediately, to not have to worry about it in each callback, since cfg80211 checks that the link ID is valid (has been added.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: cfg80211: sort trace.hJohannes Berg
We wanted to have this sorted by direction (to/from driver), but didn't maintain that well. Sort the file now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: nl80211: support MLO in auth/assocJohannes Berg
For authentication, we need the BSS, the link_id and the AP MLD address to create the link and station, (for now) the driver assigns a link address and sends the frame, the MLD address needs to be the address of the interface. For association, pass the list of BSSes that were selected for the MLO connection, along with extra per-STA profile elements, the AP MLD address and the link ID on which the association request should be sent. Note that for now we don't have a proper way to pass the link address(es) and so the driver/mac80211 will select one, but depending on how that selection works it means that assoc w/o auth data still being around (mac80211 implementation detail) the association won't necessarily work - so this will need to be extended in the future to sort out the link addressing. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: cfg80211: simplify cfg80211_mlme_auth() prototypeJohannes Berg
This function has far too many parameters now, move out the BSS lookup and pass the request struct instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-31 17:41:01 +0000