[PATCH v2 0/5] multi-role infrastructure support - channel switch
omer.dagan at tandemg.com
Sun Apr 7 23:44:55 PDT 2019
My team and I are working on implementing multi-role on a single phy,
during development we encountered an issue with channel switching events
the current status is that the kernel should send a channel_switch_started
event (pre-channel switch), however the event is not propagated through hostapd.
the following patches are meant to deal with this situation.
As an example, assuming we have a station connected to a far-AP, and the
local-AP is working and transmitting.
Now if the far-AP starts a CSA the process will fail and the station
will disconnect since the local-AP holds the radio's channel.
With this patch, I created an action script that requests a
channel-switch to the same channel as the far-AP upon event received
It works!! (both interfaces changed channel with no disconnects)
In the future a user-space application will manage both interfaces
and the switching scenarios more intelligently, so this patch-set
is an infrastructure change for that application
unified called callback of the two events to save code-duplication
tested against HWSIM and performs as expected
Omer Dagan (5):
add callback for 'channel_switch_started'
add 'channel_switch_started' event definitions
added the event to the relevant switch statments
modified the wpa_cli so the event will be acssible
Unified channel switch call to remove duplicate code
src/ap/drv_callbacks.c | 23 +++++++++--
src/ap/hostapd.h | 2 +-
src/common/wpa_ctrl.h | 2 +
src/drivers/driver.h | 13 ++++++
src/drivers/driver_common.c | 1 +
src/drivers/driver_nl80211_event.c | 28 ++++++++++---
wpa_supplicant/ap.c | 4 +-
wpa_supplicant/ap.h | 2 +-
wpa_supplicant/events.c | 66 ++++++++++++++++++------------
wpa_supplicant/wpa_cli.c | 2 +
10 files changed, 104 insertions(+), 39 deletions(-)
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