[PATCH 00/50] Add basic MLO support for AP

[Andrei Otcheretianski]

This patch series adds initial support for Multi-Link operation AP.
First, it refactors the driver_nl80211 to support multiple links by
introducing internal structs to hold the links and API's to configure
links and link stations.
Next it allows to start multiple hostapd_iface's and bind them to the same
underlying network interface and driver instance. Each hostapd_iface
represents a separate link BSS. The events are forwarded to the correct hapd
according to the link id.
Afterwards we implement advertising and parsing of basic MLE and RNR in
beacons, probe responses and during authentication and association
stages.
Finally, implement WPA authenticator for MLO and also adjust SAE to use the
MLD addresses for commit derivation.
It needs to be noticed, that this series are minimal and add a very basic MLO
implementation which allow to establish SAE/OWE connection and intended
to be used mainly for testing purposes.

Andrei Otcheretianski (24):
  driver: Add MLD link id to AP parameters
  driver_nl80211: Provide link_id in EAPOL_RX and RX_MGMT events
  driver_nl80211: Support setting up an AP on a specified link
  driver_nl80211: Properly stop and deinit MLO AP
  AP: Add some basic MLD configuration options
  AP: Allow starting multiple interfaces within single MLD
  driver_nl80211: Select freq according to transmitting link
  nl80211: Support adding multi link stations
  AP: Support building basic Multi-Link Element
  AP: MLO: Handle ML element during authentication
  AP: MLO: Add MLO information to hostapd_sta_add_params struct
  AP: MLO: Process EHT ML element from association request
  AP: MLO: Add ML element to association response
  AP: Print MLD info in STATUS command
  AP/wpa_supplicant/driver: Add link id to send eapol callbacks
  driver_nl80211: use frequency to determine mld link for MLME events
  AP: Forward link specific events
  WPA_AUTH: MLO: Store MLO link information
  WPA_AUTH: MLO: Add MLO KDEs to message 3 of the 4-way handshake
  AP: Use MLD address for SAE commit derivation
  AP: Don't process SAE/OWE assoc info on MLD links
  AP: Use MLD address for traffic tests
  tests: Clear sae_groups in eht_sae test
  tests: Add basic MLD hwsim tests

Avraham Stern (1):
  tests: Remove dynamically added hostapd interfaces

Ilan Peer (25):
  nl80211: Refactor i802_bss to support multiple links
  driver_nl80211: Introduce and implement a callback to add MLO link
  driver: Allow to provide a link ID when setting a channel
  AP: Include an RNR element in beacons for MLD AP
  common: Split ieee8021_parse_elems()
  common: Add support for clearing elements
  common: Support parsing link specific association request
  AP: Split check_assoc_ies()
  AP: MLO: Make 802.1X SM, authserv and radius client singletons
  AP: Match Rx frames against MLD address
  AP: MLO: Handle association callback
  AP: MLO: Handle deauth/disassoc of MLD station
  AP: MLO: Handle 802.1X port authorization
  driver: Specify link ID for 'send_mlme' and 'sta_deauth' callbacks
  AP: Do not prune station when adding a link station
  AP: Handle TX status for MLD AP
  AP: Provide the link ID for an MLD setting when setting VLAN
  AP/driver: Add link id to the set_tx_queue_params() callback
  WPA_AUTH: MLO: Add functions to get the AA and SPA
  WPA_AUTH: MLO: Add MAC KDE to 1st message in 4-way handshake
  WPA_AUTH: MLO: Validate MLO KDEs in 2nd message of 4-way handshake
  WPA_AUTH: MLO: Validate MLO KDEs in 4th message of 4-way handshake
  WPA_AUTH: MLO: Add MLO KDEs to message 1 of the group handshake
  WPA_AUTH: MLO: Get the correct AA and SPA based on MLD operation
  AP: Specify the link ID for set_key() callback

 hostapd/config_file.c              |   10 +
 hostapd/ctrl_iface.c               |    7 +-
 hostapd/main.c                     |   84 +++
 src/ap/ap_config.h                 |   17 +
 src/ap/ap_drv_ops.c                |   61 +-
 src/ap/ap_drv_ops.h                |   24 +-
 src/ap/authsrv.c                   |   38 +
 src/ap/beacon.c                    |   55 +-
 src/ap/ctrl_iface_ap.c             |   15 +
 src/ap/drv_callbacks.c             |   86 ++-
 src/ap/hostapd.c                   |  125 +++-
 src/ap/hostapd.h                   |    5 +-
 src/ap/ieee802_11.c                | 1115 +++++++++++++++++++++++-----
 src/ap/ieee802_11.h                |   11 +
 src/ap/ieee802_11_eht.c            |  680 +++++++++++++++++
 src/ap/ieee802_1x.c                |  109 ++-
 src/ap/sta_info.c                  |   43 +-
 src/ap/sta_info.h                  |   34 +
 src/ap/utils.c                     |   14 +-
 src/ap/wpa_auth.c                  |  892 +++++++++++++++++++---
 src/ap/wpa_auth.h                  |   48 ++
 src/ap/wpa_auth_glue.c             |  107 ++-
 src/ap/wpa_auth_i.h                |   16 +
 src/common/ieee802_11_common.c     |  433 ++++++++++-
 src/common/ieee802_11_common.h     |    8 +
 src/common/ieee802_11_defs.h       |   11 +
 src/common/wpa_common.h            |    3 +
 src/drivers/driver.h               |   64 +-
 src/drivers/driver_nl80211.c       |  667 +++++++++++++----
 src/drivers/driver_nl80211.h       |   21 +-
 src/drivers/driver_nl80211_event.c |   64 +-
 tests/hwsim/example-hostapd.config |    1 +
 tests/hwsim/hostapd.py             |   77 +-
 tests/hwsim/hwsim.py               |   11 +-
 tests/hwsim/run-tests.py           |   11 +-
 tests/hwsim/test_eht.py            |  301 ++++++++
 wpa_supplicant/driver_i.h          |   25 +-
 wpa_supplicant/ibss_rsn.c          |    4 +-
 wpa_supplicant/wpas_glue.c         |    2 +-
 39 files changed, 4721 insertions(+), 578 deletions(-)

-- 
2.38.1