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hostapd: add BSS CCA support (#9187)

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This adds the pending support for the BSS color collision handling.

This way drivers that implement CCA can on the fly change the BSS color
ID once a collision is detected.

Signed-off-by: Robert Marko <robimarko@gmail.com>

Co-authored-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
JoseCoW 2022-04-05 00:58:43 +08:00 committed by GitHub
parent 08a6577256
commit 1838504b1c
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7 changed files with 1760 additions and 4 deletions
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406
package/network/services/hostapd/patches/0001-Sync-with-mac80211-next.git-include-uapi-linux-nl802.patch Normal file
View File

@ -0,0 +1,406 @@
From f5c8697c04576b1995d109abf96fddffbd3b4f1e Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Wed, 9 Feb 2022 20:15:30 +0200
Subject: [PATCH] Sync with mac80211-next.git include/uapi/linux/nl80211.h
This brings in nl80211 definitions as of 2022-01-04. In addition, update
nl80211_command_to_string() to cover the new defined commands.
Signed-off-by: Jouni Malinen <j@w1.fi>
---
src/drivers/driver_nl80211_event.c | 7 +
src/drivers/nl80211_copy.h | 230 +++++++++++++++++++++++++++--
2 files changed, 226 insertions(+), 11 deletions(-)
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -172,6 +172,13 @@ static const char * nl80211_command_to_s
C2S(NL80211_CMD_UNPROT_BEACON)
C2S(NL80211_CMD_CONTROL_PORT_FRAME_TX_STATUS)
C2S(NL80211_CMD_SET_SAR_SPECS)
+ C2S(NL80211_CMD_OBSS_COLOR_COLLISION)
+ C2S(NL80211_CMD_COLOR_CHANGE_REQUEST)
+ C2S(NL80211_CMD_COLOR_CHANGE_STARTED)
+ C2S(NL80211_CMD_COLOR_CHANGE_ABORTED)
+ C2S(NL80211_CMD_COLOR_CHANGE_COMPLETED)
+ C2S(NL80211_CMD_SET_FILS_AAD)
+ C2S(NL80211_CMD_ASSOC_COMEBACK)
C2S(__NL80211_CMD_AFTER_LAST)
}
#undef C2S
--- a/src/drivers/nl80211_copy.h
+++ b/src/drivers/nl80211_copy.h
@@ -11,7 +11,7 @@
* Copyright 2008 Jouni Malinen <jouni.malinen@atheros.com>
* Copyright 2008 Colin McCabe <colin@cozybit.com>
* Copyright 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2020 Intel Corporation
+ * Copyright (C) 2018-2021 Intel Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -301,6 +301,29 @@
*/
/**
+ * DOC: FILS shared key crypto offload
+ *
+ * This feature is applicable to drivers running in AP mode.
+ *
+ * FILS shared key crypto offload can be advertised by drivers by setting
+ * @NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD flag. The drivers that support
+ * FILS shared key crypto offload should be able to encrypt and decrypt
+ * association frames for FILS shared key authentication as per IEEE 802.11ai.
+ * With this capability, for FILS key derivation, drivers depend on userspace.
+ *
+ * After FILS key derivation, userspace shares the FILS AAD details with the
+ * driver and the driver stores the same to use in decryption of association
+ * request and in encryption of association response. The below parameters
+ * should be given to the driver in %NL80211_CMD_SET_FILS_AAD.
+ * %NL80211_ATTR_MAC - STA MAC address, used for storing FILS AAD per STA
+ * %NL80211_ATTR_FILS_KEK - Used for encryption or decryption
+ * %NL80211_ATTR_FILS_NONCES - Used for encryption or decryption
+ * (STA Nonce 16 bytes followed by AP Nonce 16 bytes)
+ *
+ * Once the association is done, the driver cleans the FILS AAD data.
+ */
+
+/**
* enum nl80211_commands - supported nl80211 commands
*
* @NL80211_CMD_UNSPEC: unspecified command to catch errors
@@ -337,7 +360,10 @@
* @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes
* %NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from
* userspace to request deletion of a virtual interface, then requires
- * attribute %NL80211_ATTR_IFINDEX.
+ * attribute %NL80211_ATTR_IFINDEX. If multiple BSSID advertisements are
+ * enabled using %NL80211_ATTR_MBSSID_CONFIG, %NL80211_ATTR_MBSSID_ELEMS,
+ * and if this command is used for the transmitting interface, then all
+ * the non-transmitting interfaces are deleted as well.
*
* @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified
* by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC.
@@ -1185,6 +1211,32 @@
* passed using %NL80211_ATTR_SAR_SPEC. %NL80211_ATTR_WIPHY is used to
* specify the wiphy index to be applied to.
*
+ * @NL80211_CMD_OBSS_COLOR_COLLISION: This notification is sent out whenever
+ * mac80211/drv detects a bss color collision.
+ *
+ * @NL80211_CMD_COLOR_CHANGE_REQUEST: This command is used to indicate that
+ * userspace wants to change the BSS color.
+ *
+ * @NL80211_CMD_COLOR_CHANGE_STARTED: Notify userland, that a color change has
+ * started
+ *
+ * @NL80211_CMD_COLOR_CHANGE_ABORTED: Notify userland, that the color change has
+ * been aborted
+ *
+ * @NL80211_CMD_COLOR_CHANGE_COMPLETED: Notify userland that the color change
+ * has completed
+ *
+ * @NL80211_CMD_SET_FILS_AAD: Set FILS AAD data to the driver using -
+ * &NL80211_ATTR_MAC - for STA MAC address
+ * &NL80211_ATTR_FILS_KEK - for KEK
+ * &NL80211_ATTR_FILS_NONCES - for FILS Nonces
+ * (STA Nonce 16 bytes followed by AP Nonce 16 bytes)
+ *
+ * @NL80211_CMD_ASSOC_COMEBACK: notification about an association
+ * temporal rejection with comeback. The event includes %NL80211_ATTR_MAC
+ * to describe the BSSID address of the AP and %NL80211_ATTR_TIMEOUT to
+ * specify the timeout value.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -1417,6 +1469,18 @@ enum nl80211_commands {
NL80211_CMD_SET_SAR_SPECS,
+ NL80211_CMD_OBSS_COLOR_COLLISION,
+
+ NL80211_CMD_COLOR_CHANGE_REQUEST,
+
+ NL80211_CMD_COLOR_CHANGE_STARTED,
+ NL80211_CMD_COLOR_CHANGE_ABORTED,
+ NL80211_CMD_COLOR_CHANGE_COMPLETED,
+
+ NL80211_CMD_SET_FILS_AAD,
+
+ NL80211_CMD_ASSOC_COMEBACK,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -2413,7 +2477,9 @@ enum nl80211_commands {
* space supports external authentication. This attribute shall be used
* with %NL80211_CMD_CONNECT and %NL80211_CMD_START_AP request. The driver
* may offload authentication processing to user space if this capability
- * is indicated in the respective requests from the user space.
+ * is indicated in the respective requests from the user space. (This flag
+ * attribute deprecated for %NL80211_CMD_START_AP, use
+ * %NL80211_ATTR_AP_SETTINGS_FLAGS)
*
* @NL80211_ATTR_NSS: Station's New/updated RX_NSS value notified using this
* u8 attribute. This is used with %NL80211_CMD_STA_OPMODE_CHANGED.
@@ -2560,6 +2626,39 @@ enum nl80211_commands {
* disassoc events to indicate that an immediate reconnect to the AP
* is desired.
*
+ * @NL80211_ATTR_OBSS_COLOR_BITMAP: bitmap of the u64 BSS colors for the
+ * %NL80211_CMD_OBSS_COLOR_COLLISION event.
+ *
+ * @NL80211_ATTR_COLOR_CHANGE_COUNT: u8 attribute specifying the number of TBTT's
+ * until the color switch event.
+ * @NL80211_ATTR_COLOR_CHANGE_COLOR: u8 attribute specifying the color that we are
+ * switching to
+ * @NL80211_ATTR_COLOR_CHANGE_ELEMS: Nested set of attributes containing the IE
+ * information for the time while performing a color switch.
+ *
+ * @NL80211_ATTR_MBSSID_CONFIG: Nested attribute for multiple BSSID
+ * advertisements (MBSSID) parameters in AP mode.
+ * Kernel uses this attribute to indicate the driver's support for MBSSID
+ * and enhanced multi-BSSID advertisements (EMA AP) to the userspace.
+ * Userspace should use this attribute to configure per interface MBSSID
+ * parameters.
+ * See &enum nl80211_mbssid_config_attributes for details.
+ *
+ * @NL80211_ATTR_MBSSID_ELEMS: Nested parameter to pass multiple BSSID elements.
+ * Mandatory parameter for the transmitting interface to enable MBSSID.
+ * Optional for the non-transmitting interfaces.
+ *
+ * @NL80211_ATTR_RADAR_BACKGROUND: Configure dedicated offchannel chain
+ * available for radar/CAC detection on some hw. This chain can't be used
+ * to transmit or receive frames and it is bounded to a running wdev.
+ * Background radar/CAC detection allows to avoid the CAC downtime
+ * switching on a different channel during CAC detection on the selected
+ * radar channel.
+ *
+ * @NL80211_ATTR_AP_SETTINGS_FLAGS: u32 attribute contains ap settings flags,
+ * enumerated in &enum nl80211_ap_settings_flags. This attribute shall be
+ * used with %NL80211_CMD_START_AP request.
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -3057,6 +3156,19 @@ enum nl80211_attrs {
NL80211_ATTR_DISABLE_HE,
+ NL80211_ATTR_OBSS_COLOR_BITMAP,
+
+ NL80211_ATTR_COLOR_CHANGE_COUNT,
+ NL80211_ATTR_COLOR_CHANGE_COLOR,
+ NL80211_ATTR_COLOR_CHANGE_ELEMS,
+
+ NL80211_ATTR_MBSSID_CONFIG,
+ NL80211_ATTR_MBSSID_ELEMS,
+
+ NL80211_ATTR_RADAR_BACKGROUND,
+
+ NL80211_ATTR_AP_SETTINGS_FLAGS,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -3650,11 +3762,12 @@ enum nl80211_mpath_info {
* capabilities IE
* @NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE: HE PPE thresholds information as
* defined in HE capabilities IE
- * @NL80211_BAND_IFTYPE_ATTR_MAX: highest band HE capability attribute currently
- * defined
* @NL80211_BAND_IFTYPE_ATTR_HE_6GHZ_CAPA: HE 6GHz band capabilities (__le16),
* given for all 6 GHz band channels
+ * @NL80211_BAND_IFTYPE_ATTR_VENDOR_ELEMS: vendor element capabilities that are
+ * advertised on this band/for this iftype (binary)
* @__NL80211_BAND_IFTYPE_ATTR_AFTER_LAST: internal use
+ * @NL80211_BAND_IFTYPE_ATTR_MAX: highest band attribute currently defined
*/
enum nl80211_band_iftype_attr {
__NL80211_BAND_IFTYPE_ATTR_INVALID,
@@ -3665,6 +3778,7 @@ enum nl80211_band_iftype_attr {
NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET,
NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE,
NL80211_BAND_IFTYPE_ATTR_HE_6GHZ_CAPA,
+ NL80211_BAND_IFTYPE_ATTR_VENDOR_ELEMS,
/* keep last */
__NL80211_BAND_IFTYPE_ATTR_AFTER_LAST,
@@ -4887,6 +5001,7 @@ enum nl80211_txrate_gi {
* @NL80211_BAND_60GHZ: around 60 GHz band (58.32 - 69.12 GHz)
* @NL80211_BAND_6GHZ: around 6 GHz band (5.9 - 7.2 GHz)
* @NL80211_BAND_S1GHZ: around 900MHz, supported by S1G PHYs
+ * @NL80211_BAND_LC: light communication band (placeholder)
* @NUM_NL80211_BANDS: number of bands, avoid using this in userspace
* since newer kernel versions may support more bands
*/
@@ -4896,6 +5011,7 @@ enum nl80211_band {
NL80211_BAND_60GHZ,
NL80211_BAND_6GHZ,
NL80211_BAND_S1GHZ,
+ NL80211_BAND_LC,
NUM_NL80211_BANDS,
};
@@ -5462,7 +5578,7 @@ enum nl80211_iface_limit_attrs {
* => allows 8 of AP/GO that can have BI gcd >= min gcd
*
* numbers = [ #{STA} <= 2 ], channels = 2, max = 2
- * => allows two STAs on different channels
+ * => allows two STAs on the same or on different channels
*
* numbers = [ #{STA} <= 1, #{P2P-client,P2P-GO} <= 3 ], max = 4
* => allows a STA plus three P2P interfaces
@@ -5507,7 +5623,7 @@ enum nl80211_if_combination_attrs {
* @NL80211_PLINK_ESTAB: mesh peer link is established
* @NL80211_PLINK_HOLDING: mesh peer link is being closed or cancelled
* @NL80211_PLINK_BLOCKED: all frames transmitted from this mesh
- * plink are discarded
+ * plink are discarded, except for authentication frames
* @NUM_NL80211_PLINK_STATES: number of peer link states
* @MAX_NL80211_PLINK_STATES: highest numerical value of plink states
*/
@@ -5644,13 +5760,15 @@ enum nl80211_tdls_operation {
NL80211_TDLS_DISABLE_LINK,
};
-/*
+/**
* enum nl80211_ap_sme_features - device-integrated AP features
- * Reserved for future use, no bits are defined in
- * NL80211_ATTR_DEVICE_AP_SME yet.
+ * @NL80211_AP_SME_SA_QUERY_OFFLOAD: SA Query procedures offloaded to driver
+ * when user space indicates support for SA Query procedures offload during
+ * "start ap" with %NL80211_AP_SETTINGS_SA_QUERY_OFFLOAD_SUPPORT.
+ */
enum nl80211_ap_sme_features {
+ NL80211_AP_SME_SA_QUERY_OFFLOAD = 1 << 0,
};
- */
/**
* enum nl80211_feature_flags - device/driver features
@@ -5950,6 +6068,17 @@ enum nl80211_feature_flags {
* frame protection for all management frames exchanged during the
* negotiation and range measurement procedure.
*
+ * @NL80211_EXT_FEATURE_BSS_COLOR: The driver supports BSS color collision
+ * detection and change announcemnts.
+ *
+ * @NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD: Driver running in AP mode supports
+ * FILS encryption and decryption for (Re)Association Request and Response
+ * frames. Userspace has to share FILS AAD details to the driver by using
+ * @NL80211_CMD_SET_FILS_AAD.
+ *
+ * @NL80211_EXT_FEATURE_RADAR_BACKGROUND: Device supports background radar/CAC
+ * detection.
+ *
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
*/
@@ -6014,6 +6143,9 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_SECURE_LTF,
NL80211_EXT_FEATURE_SECURE_RTT,
NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE,
+ NL80211_EXT_FEATURE_BSS_COLOR,
+ NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD,
+ NL80211_EXT_FEATURE_RADAR_BACKGROUND,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
@@ -6912,6 +7044,9 @@ enum nl80211_peer_measurement_ftm_capa {
* @NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK: negotiate for LMR feedback. Only
* valid if either %NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED or
* %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
+ * @NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR: optional. The BSS color of the
+ * responder. Only valid if %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED
+ * or %NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED is set.
*
* @NUM_NL80211_PMSR_FTM_REQ_ATTR: internal
* @NL80211_PMSR_FTM_REQ_ATTR_MAX: highest attribute number
@@ -6931,6 +7066,7 @@ enum nl80211_peer_measurement_ftm_req {
NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED,
NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED,
NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK,
+ NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR,
/* keep last */
NUM_NL80211_PMSR_FTM_REQ_ATTR,
@@ -7299,4 +7435,76 @@ enum nl80211_sar_specs_attrs {
NL80211_SAR_ATTR_SPECS_MAX = __NL80211_SAR_ATTR_SPECS_LAST - 1,
};
+/**
+ * enum nl80211_mbssid_config_attributes - multiple BSSID (MBSSID) and enhanced
+ * multi-BSSID advertisements (EMA) in AP mode.
+ * Kernel uses some of these attributes to advertise driver's support for
+ * MBSSID and EMA.
+ * Remaining attributes should be used by the userspace to configure the
+ * features.
+ *
+ * @__NL80211_MBSSID_CONFIG_ATTR_INVALID: Invalid
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES: Used by the kernel to advertise
+ * the maximum number of MBSSID interfaces supported by the driver.
+ * Driver should indicate MBSSID support by setting
+ * wiphy->mbssid_max_interfaces to a value more than or equal to 2.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY: Used by the kernel
+ * to advertise the maximum profile periodicity supported by the driver
+ * if EMA is enabled. Driver should indicate EMA support to the userspace
+ * by setting wiphy->ema_max_profile_periodicity to
+ * a non-zero value.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_INDEX: Mandatory parameter to pass the index of
+ * this BSS (u8) in the multiple BSSID set.
+ * Value must be set to 0 for the transmitting interface and non-zero for
+ * all non-transmitting interfaces. The userspace will be responsible
+ * for using unique indices for the interfaces.
+ * Range: 0 to wiphy->mbssid_max_interfaces-1.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX: Mandatory parameter for
+ * a non-transmitted profile which provides the interface index (u32) of
+ * the transmitted profile. The value must match one of the interface
+ * indices advertised by the kernel. Optional if the interface being set up
+ * is the transmitting one, however, if provided then the value must match
+ * the interface index of the same.
+ *
+ * @NL80211_MBSSID_CONFIG_ATTR_EMA: Flag used to enable EMA AP feature.
+ * Setting this flag is permitted only if the driver advertises EMA support
+ * by setting wiphy->ema_max_profile_periodicity to non-zero.
+ *
+ * @__NL80211_MBSSID_CONFIG_ATTR_LAST: Internal
+ * @NL80211_MBSSID_CONFIG_ATTR_MAX: highest attribute
+ */
+enum nl80211_mbssid_config_attributes {
+ __NL80211_MBSSID_CONFIG_ATTR_INVALID,
+
+ NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES,
+ NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY,
+ NL80211_MBSSID_CONFIG_ATTR_INDEX,
+ NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX,
+ NL80211_MBSSID_CONFIG_ATTR_EMA,
+
+ /* keep last */
+ __NL80211_MBSSID_CONFIG_ATTR_LAST,
+ NL80211_MBSSID_CONFIG_ATTR_MAX = __NL80211_MBSSID_CONFIG_ATTR_LAST - 1,
+};
+
+/**
+ * enum nl80211_ap_settings_flags - AP settings flags
+ *
+ * @NL80211_AP_SETTINGS_EXTERNAL_AUTH_SUPPORT: AP supports external
+ * authentication.
+ * @NL80211_AP_SETTINGS_SA_QUERY_OFFLOAD_SUPPORT: Userspace supports SA Query
+ * procedures offload to driver. If driver advertises
+ * %NL80211_AP_SME_SA_QUERY_OFFLOAD in AP SME features, userspace shall
+ * ignore SA Query procedures and validations when this flag is set by
+ * userspace.
+ */
+enum nl80211_ap_settings_flags {
+ NL80211_AP_SETTINGS_EXTERNAL_AUTH_SUPPORT = 1 << 0,
+ NL80211_AP_SETTINGS_SA_QUERY_OFFLOAD_SUPPORT = 1 << 1,
+};
+
#endif /* __LINUX_NL80211_H */

8
package/network/services/hostapd/patches/370-ap_sta_support.patch
View File

@ -357,7 +357,7 @@
int ch_offset; int ch_offset;
--- a/src/drivers/driver_nl80211_event.c --- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c +++ b/src/drivers/driver_nl80211_event.c
@@ -684,7 +684,7 @@ static void mlme_event_ch_switch(struct @@ -691,7 +691,7 @@ static void mlme_event_ch_switch(struct
struct nlattr *ifindex, struct nlattr *freq, struct nlattr *ifindex, struct nlattr *freq,
struct nlattr *type, struct nlattr *bw, struct nlattr *type, struct nlattr *bw,
struct nlattr *cf1, struct nlattr *cf2, struct nlattr *cf1, struct nlattr *cf2,
@ -366,7 +366,7 @@
{ {
struct i802_bss *bss; struct i802_bss *bss;
union wpa_event_data data; union wpa_event_data data;
@@ -745,6 +745,8 @@ static void mlme_event_ch_switch(struct @@ -752,6 +752,8 @@ static void mlme_event_ch_switch(struct
data.ch_switch.cf1 = nla_get_u32(cf1); data.ch_switch.cf1 = nla_get_u32(cf1);
if (cf2) if (cf2)
data.ch_switch.cf2 = nla_get_u32(cf2); data.ch_switch.cf2 = nla_get_u32(cf2);
@ -375,7 +375,7 @@
if (finished) if (finished)
bss->freq = data.ch_switch.freq; bss->freq = data.ch_switch.freq;
@@ -3003,6 +3005,7 @@ static void do_process_drv_event(struct @@ -3010,6 +3012,7 @@ static void do_process_drv_event(struct
tb[NL80211_ATTR_CHANNEL_WIDTH], tb[NL80211_ATTR_CHANNEL_WIDTH],
tb[NL80211_ATTR_CENTER_FREQ1], tb[NL80211_ATTR_CENTER_FREQ1],
tb[NL80211_ATTR_CENTER_FREQ2], tb[NL80211_ATTR_CENTER_FREQ2],
@ -383,7 +383,7 @@
0); 0);
break; break;
case NL80211_CMD_CH_SWITCH_NOTIFY: case NL80211_CMD_CH_SWITCH_NOTIFY:
@@ -3013,6 +3016,7 @@ static void do_process_drv_event(struct @@ -3020,6 +3023,7 @@ static void do_process_drv_event(struct
tb[NL80211_ATTR_CHANNEL_WIDTH], tb[NL80211_ATTR_CHANNEL_WIDTH],
tb[NL80211_ATTR_CENTER_FREQ1], tb[NL80211_ATTR_CENTER_FREQ1],
tb[NL80211_ATTR_CENTER_FREQ2], tb[NL80211_ATTR_CENTER_FREQ2],

419
package/network/services/hostapd/patches/v2-1-5-bss-coloring-add-support-for-handling-collision-events-and-triggering-CCA.patch Normal file
View File

@ -0,0 +1,419 @@
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From: Ryder Lee <ryder.lee@mediatek.com>
To: Jouni Malinen <jouni@codeaurora.org>
CC: Felix Fietkau <nbd@nbd.name>, Lorenzo Bianconi
<lorenzo.bianconi@redhat.com>, Shayne Chen <shayne.chen@mediatek.com>,
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Crispin <john@phrozen.org>, Lorenzo Bianconi <lorenzo@kernel.org>, Ryder Lee
<ryder.lee@mediatek.com>
Subject: [PATCH v2 1/5] bss coloring: add support for handling collision
events and triggering CCA
Date: Mon, 8 Nov 2021 11:04:22 +0800
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Content preview: From: John Crispin <john@phrozen.org> Add the core code for
handling bss color collision events and triggering CCA inside the kernel.
The caller of hostapd_switch_color() will be added in the following commits.
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From: John Crispin <john@phrozen.org>
Add the core code for handling bss color collision events and triggering
CCA inside the kernel. The caller of hostapd_switch_color() will be added
in the following commits.
Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
changes since v2 -
- use os_get_reltime and os_reltime instead.
- use bool cca_in_progress.
- use random BSS color to avoid hardcoded BSS color value of 1.
- modify comment for DOT11BSS_COLOR_COLLISION_AP_PERIOD.
- add a note for collision behavior.
- fix compiler warnings.
- Be clear in the commit message regarding hostapd_switch_color().
---
src/ap/ap_drv_ops.h | 12 ++++
src/ap/hostapd.c | 134 ++++++++++++++++++++++++++++++++++-
src/ap/hostapd.h | 16 +++++
src/common/ieee802_11_defs.h | 6 ++
src/drivers/driver.h | 31 ++++++++
5 files changed, 198 insertions(+), 1 deletion(-)
--- a/src/ap/ap_drv_ops.h
+++ b/src/ap/ap_drv_ops.h
@@ -299,6 +299,18 @@ static inline int hostapd_drv_switch_cha
return hapd->driver->switch_channel(hapd->drv_priv, settings);
}
+#ifdef CONFIG_IEEE80211AX
+static inline int hostapd_drv_switch_color(struct hostapd_data *hapd,
+ struct cca_settings *settings)
+{
+ if (hapd->driver == NULL || hapd->driver->switch_color == NULL ||
+ hapd->drv_priv == NULL)
+ return -1;
+
+ return hapd->driver->switch_color(hapd->drv_priv, settings);
+}
+#endif
+
static inline int hostapd_drv_status(struct hostapd_data *hapd, char *buf,
size_t buflen)
{
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -66,7 +66,10 @@ static int setup_interface2(struct hosta
static void channel_list_update_timeout(void *eloop_ctx, void *timeout_ctx);
static void hostapd_interface_setup_failure_handler(void *eloop_ctx,
void *timeout_ctx);
-
+#ifdef CONFIG_IEEE80211AX
+static void
+hostapd_switch_color_timeout_handler(void *eloop_data, void *user_ctx);
+#endif
int hostapd_for_each_interface(struct hapd_interfaces *interfaces,
int (*cb)(struct hostapd_iface *iface,
@@ -537,6 +540,9 @@ void hostapd_free_hapd_data(struct hosta
}
eloop_cancel_timeout(auth_sae_process_commit, hapd, NULL);
#endif /* CONFIG_SAE */
+#ifdef CONFIG_IEEE80211AX
+ eloop_cancel_timeout(hostapd_switch_color_timeout_handler, hapd, NULL);
+#endif
}
@@ -3790,6 +3796,132 @@ hostapd_switch_channel_fallback(struct h
hostapd_enable_iface(iface);
}
+
+#ifdef CONFIG_IEEE80211AX
+void hostapd_cleanup_cca_params(struct hostapd_data *hapd)
+{
+ hapd->cca_count = 0;
+ hapd->cca_color = 0;
+ hapd->cca_c_off_beacon = 0;
+ hapd->cca_c_off_proberesp = 0;
+ hapd->cca_in_progress = false;
+}
+
+
+static int hostapd_fill_cca_settings(struct hostapd_data *hapd,
+ struct cca_settings *settings)
+{
+ struct hostapd_iface *iface = hapd->iface;
+ u8 old_color;
+ int ret;
+
+ if (!iface || iface->conf->he_op.he_bss_color_disabled)
+ return -1;
+
+ old_color = iface->conf->he_op.he_bss_color;
+ iface->conf->he_op.he_bss_color = hapd->cca_color;
+ ret = hostapd_build_beacon_data(hapd, &settings->beacon_after);
+ iface->conf->he_op.he_bss_color = old_color;
+
+ settings->cca_count = hapd->cca_count;
+ settings->cca_color = hapd->cca_color,
+ hapd->cca_in_progress = true;
+
+ ret = hostapd_build_beacon_data(hapd, &settings->beacon_cca);
+ if (ret) {
+ free_beacon_data(&settings->beacon_after);
+ return ret;
+ }
+
+ settings->counter_offset_beacon = hapd->cca_c_off_beacon;
+ settings->counter_offset_presp = hapd->cca_c_off_proberesp;
+
+ return 0;
+}
+
+
+static void
+hostapd_switch_color_timeout_handler(void *eloop_data, void *user_ctx)
+{
+ struct hostapd_data *hapd = (struct hostapd_data *) eloop_data;
+ struct cca_settings settings;
+ struct os_reltime now;
+ unsigned int b;
+ int i, r, ret;
+
+ if (os_get_reltime(&now))
+ return;
+
+ /* 10s window is the approximate margin of collision persistent
+ * as an initial implementation. CCA can only be triggered once
+ * handler constantly receives collision events to update the
+ * last_color_collision.sec. How does it work -
+ *
+ * 1. BSS color collision persistent for at least 50 seconds.
+ * 2. The BSS Color Disabled subfield is set to 1.
+ * 3. CCA.
+ *
+ * TODO: implement other 'persistent' computation methods.
+ */
+ if (now.sec - hapd->last_color_collision.sec >= 10)
+ return;
+
+ r = os_random() % HE_OPERATION_BSS_COLOR_MAX;
+ for (i = 0; i < HE_OPERATION_BSS_COLOR_MAX; i++) {
+ if (r && (hapd->color_collision_bitmap & (1 << r)) == 0)
+ break;
+ r = (r + 1) % HE_OPERATION_BSS_COLOR_MAX;
+ }
+
+ if (i == HE_OPERATION_BSS_COLOR_MAX) {
+ /* there are no free colors so turn bss coloring off */
+ wpa_printf(MSG_INFO, "no free colors left, turning of BSS coloring");
+ hapd->iface->conf->he_op.he_bss_color_disabled = 1;
+ hapd->iface->conf->he_op.he_bss_color = os_random() % 63 + 1;
+ for (b = 0; b < hapd->iface->num_bss; b++)
+ ieee802_11_set_beacon(hapd->iface->bss[b]);
+ return;
+ }
+
+ for (b = 0; b < hapd->iface->num_bss; b++) {
+ struct hostapd_data *bss = hapd->iface->bss[b];
+
+ hostapd_cleanup_cca_params(bss);
+ bss->cca_color = r;
+ bss->cca_count = 10;
+
+ if (hostapd_fill_cca_settings(bss, &settings)) {
+ hostapd_cleanup_cca_params(bss);
+ continue;
+ }
+
+ ret = hostapd_drv_switch_color(bss, &settings);
+ free_beacon_data(&settings.beacon_cca);
+ free_beacon_data(&settings.beacon_after);
+
+ if (ret)
+ hostapd_cleanup_cca_params(bss);
+ }
+}
+
+
+void
+hostapd_switch_color(struct hostapd_data *hapd, u64 bitmap)
+{
+ if (hapd->cca_in_progress)
+ return;
+
+ if (os_get_reltime(&hapd->last_color_collision))
+ return;
+
+ hapd->color_collision_bitmap = bitmap;
+
+ if (!eloop_is_timeout_registered(hostapd_switch_color_timeout_handler, hapd, NULL))
+ eloop_register_timeout(DOT11BSS_COLOR_COLLISION_AP_PERIOD, 0,
+ hostapd_switch_color_timeout_handler, hapd, NULL);
+}
+#endif
+
#endif /* NEED_AP_MLME */
--- a/src/ap/hostapd.h
+++ b/src/ap/hostapd.h
@@ -315,6 +315,16 @@ struct hostapd_data {
unsigned int cs_c_off_ecsa_beacon;
unsigned int cs_c_off_ecsa_proberesp;
+#ifdef CONFIG_IEEE80211AX
+ bool cca_in_progress;
+ u8 cca_count;
+ u8 cca_color;
+ unsigned int cca_c_off_beacon;
+ unsigned int cca_c_off_proberesp;
+ struct os_reltime last_color_collision;
+ u64 color_collision_bitmap;
+#endif
+
#ifdef CONFIG_P2P
struct p2p_data *p2p;
struct p2p_group *p2p_group;
@@ -670,6 +680,12 @@ int hostapd_owe_trans_get_info(struct ho
void hostapd_ocv_check_csa_sa_query(void *eloop_ctx, void *timeout_ctx);
int hostapd_check_max_sta(struct hostapd_data *hapd);
+
+#ifdef CONFIG_IEEE80211AX
+void hostapd_switch_color(struct hostapd_data *hapd, u64 bitmap);
+void hostapd_cleanup_cca_params(struct hostapd_data *hapd);
+#endif
+
/* utils.c */
int hostapd_register_probereq_cb(struct hostapd_data *hapd,
int (*cb)(void *ctx, const u8 *sa,
--- a/src/common/ieee802_11_defs.h
+++ b/src/common/ieee802_11_defs.h
@@ -2305,6 +2305,7 @@ struct ieee80211_spatial_reuse {
#define HE_OPERATION_BSS_COLOR_PARTIAL ((u32) BIT(30))
#define HE_OPERATION_BSS_COLOR_DISABLED ((u32) BIT(31))
#define HE_OPERATION_BSS_COLOR_OFFSET 24
+#define HE_OPERATION_BSS_COLOR_MAX 64
/* Spatial Reuse defines */
#define SPATIAL_REUSE_SRP_DISALLOWED BIT(0)
@@ -2470,6 +2471,11 @@ enum mscs_description_subelem {
*/
#define FD_MAX_INTERVAL_6GHZ 20 /* TUs */
+/* IEEE802.11/D6.0 - 26.17.3.5.1, AP needs to wait and see the collision
+ * persists for at least the minimum default timeout
+ */
+#define DOT11BSS_COLOR_COLLISION_AP_PERIOD 50
+
/* Protected Vendor-specific QoS Management Action frame identifiers - WFA */
#define QM_ACTION_VENDOR_TYPE 0x506f9a1a
#define QM_ACTION_OUI_TYPE 0x1a
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -2402,6 +2402,26 @@ struct csa_settings {
u16 counter_offset_presp[2];
};
+/**
+ * struct cca_settings - Settings for color switch command
+ * @cca_count: Count in Beacon frames (TBTT) to perform the switch
+ * @cca_color: The new color that we are switching to
+ * @beacon_cca: Beacon/probe resp/asooc resp info for color switch period
+ * @beacon_after: Next beacon/probe resp/asooc resp info
+ * @counter_offset_beacon: Offset to the count field in beacon's tail
+ * @counter_offset_presp: Offset to the count field in probe resp.
+ */
+struct cca_settings {
+ u8 cca_count;
+ u8 cca_color;
+
+ struct beacon_data beacon_cca;
+ struct beacon_data beacon_after;
+
+ u16 counter_offset_beacon;
+ u16 counter_offset_presp;
+};
+
/* TDLS peer capabilities for send_tdls_mgmt() */
enum tdls_peer_capability {
TDLS_PEER_HT = BIT(0),
@@ -3985,6 +4005,17 @@ struct wpa_driver_ops {
int (*switch_channel)(void *priv, struct csa_settings *settings);
/**
+ * switch_color - Announce color switch and migrate the BSS to the
+ * given color
+ * @priv: Private driver interface data
+ * @settings: Settings for CCA period and new color
+ * Returns: 0 on success, -1 on failure
+ *
+ * This function is used to move the BSS to its new color.
+ */
+ int (*switch_color)(void *priv, struct cca_settings *settings);
+
+ /**
* add_tx_ts - Add traffic stream
* @priv: Private driver interface data
* @tsid: Traffic stream ID

222
package/network/services/hostapd/patches/v2-2-5-bss_coloring-add-the-code-required-to-generate-the-CCA-IE.patch Normal file
View File

@ -0,0 +1,222 @@
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From: Ryder Lee <ryder.lee@mediatek.com>
To: Jouni Malinen <jouni@codeaurora.org>
CC: Felix Fietkau <nbd@nbd.name>, Lorenzo Bianconi
<lorenzo.bianconi@redhat.com>, Shayne Chen <shayne.chen@mediatek.com>,
"Evelyn Tsai" <evelyn.tsai@mediatek.com>, <hostap@lists.infradead.org>, John
Crispin <john@phrozen.org>, Lorenzo Bianconi <lorenzo@kernel.org>, Ryder Lee
<ryder.lee@mediatek.com>
Subject: [PATCH v2 2/5] bss_coloring: add the code required to generate the
CCA IE
Date: Mon, 8 Nov 2021 11:04:23 +0800
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<d7a95338df080b7abafb3f796a0521130818f5e1.1636093546.git.ryder.lee@mediatek.com>
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References:
<2d69afce2fd6f44ae08ac75d5715fa9e43fe2a77.1636093546.git.ryder.lee@mediatek.com>
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Content preview: From: John Crispin <john@phrozen.org> This IE is similar to
the CSA one. It contains a counter and the target color. Once the counter
expired,
the change to the new color happens. Just note the current implementation
is based on CCA counter attributes that only takes beacon and prob_resp into
account, as for the assoc_resp frames will be added in the future patches.
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From: John Crispin <john@phrozen.org>
This IE is similar to the CSA one. It contains a counter and the target
color. Once the counter expired, the change to the new color happens.
Just note the current implementation is based on CCA counter attributes
that only takes beacon and prob_resp into account, as for the assoc_resp
frames will be added in the future patches.
Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
changes since v2 -
- fix the position of CCA IE.
---
src/ap/beacon.c | 18 ++++++++++++++++++
src/ap/ieee802_11.h | 1 +
src/ap/ieee802_11_he.c | 14 ++++++++++++++
src/common/ieee802_11_defs.h | 1 +
4 files changed, 34 insertions(+)
--- a/src/ap/beacon.c
+++ b/src/ap/beacon.c
@@ -578,8 +578,17 @@ static u8 * hostapd_gen_probe_resp(struc
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax && !hapd->conf->disable_11ax) {
+ u8 *cca_pos;
+
pos = hostapd_eid_he_capab(hapd, pos, IEEE80211_MODE_AP);
pos = hostapd_eid_he_operation(hapd, pos);
+
+ /* CCA IE */
+ cca_pos = hostapd_eid_cca(hapd, pos);
+ if (cca_pos != pos)
+ hapd->cca_c_off_proberesp = cca_pos - (u8 *) resp - 2;
+ pos = cca_pos;
+
pos = hostapd_eid_spatial_reuse(hapd, pos);
pos = hostapd_eid_he_mu_edca_parameter_set(hapd, pos);
pos = hostapd_eid_he_6ghz_band_cap(hapd, pos);
@@ -1612,9 +1621,18 @@ int ieee802_11_build_ap_params(struct ho
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax && !hapd->conf->disable_11ax) {
+ u8 *cca_pos;
+
tailpos = hostapd_eid_he_capab(hapd, tailpos,
IEEE80211_MODE_AP);
tailpos = hostapd_eid_he_operation(hapd, tailpos);
+
+ /* CCA IE */
+ cca_pos = hostapd_eid_cca(hapd, tailpos);
+ if (cca_pos != tailpos)
+ hapd->cca_c_off_beacon = cca_pos - tail - 2;
+ tailpos = cca_pos;
+
tailpos = hostapd_eid_spatial_reuse(hapd, tailpos);
tailpos = hostapd_eid_he_mu_edca_parameter_set(hapd, tailpos);
tailpos = hostapd_eid_he_6ghz_band_cap(hapd, tailpos);
--- a/src/ap/ieee802_11.h
+++ b/src/ap/ieee802_11.h
@@ -100,6 +100,7 @@ u16 copy_sta_he_6ghz_capab(struct hostap
const u8 *he_6ghz_capab);
int hostapd_get_he_twt_responder(struct hostapd_data *hapd,
enum ieee80211_op_mode mode);
+u8 * hostapd_eid_cca(struct hostapd_data *hapd, u8 *eid);
void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr,
const u8 *buf, size_t len, int ack);
void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst,
--- a/src/ap/ieee802_11_he.c
+++ b/src/ap/ieee802_11_he.c
@@ -520,3 +520,17 @@ int hostapd_get_he_twt_responder(struct
return !!(mac_cap[HE_MAC_CAPAB_0] & HE_MACCAP_TWT_RESPONDER) &&
hapd->iface->conf->he_op.he_twt_responder;
}
+
+u8 * hostapd_eid_cca(struct hostapd_data *hapd, u8 *eid)
+{
+ if (!hapd->cca_in_progress)
+ return eid;
+
+ *eid++ = WLAN_EID_EXTENSION;
+ *eid++ = 3;
+ *eid++ = WLAN_EID_EXT_COLOR_CHANGE_ANNOUNCEMENT;
+ *eid++ = hapd->cca_count;
+ *eid++ = hapd->cca_color;
+
+ return eid;
+}
--- a/src/common/ieee802_11_defs.h
+++ b/src/common/ieee802_11_defs.h
@@ -479,6 +479,7 @@
#define WLAN_EID_EXT_HE_OPERATION 36
#define WLAN_EID_EXT_HE_MU_EDCA_PARAMS 38
#define WLAN_EID_EXT_SPATIAL_REUSE 39
+#define WLAN_EID_EXT_COLOR_CHANGE_ANNOUNCEMENT 42
#define WLAN_EID_EXT_OCV_OCI 54
#define WLAN_EID_EXT_SHORT_SSID_LIST 58
#define WLAN_EID_EXT_HE_6GHZ_BAND_CAP 59

144
package/network/services/hostapd/patches/v2-3-5-bss-coloring-disable-BSS-color-during-CCA.patch Normal file
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@ -0,0 +1,144 @@
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From: Ryder Lee <ryder.lee@mediatek.com>
To: Jouni Malinen <jouni@codeaurora.org>
CC: Felix Fietkau <nbd@nbd.name>, Lorenzo Bianconi
<lorenzo.bianconi@redhat.com>, Shayne Chen <shayne.chen@mediatek.com>,
"Evelyn Tsai" <evelyn.tsai@mediatek.com>, <hostap@lists.infradead.org>, John
Crispin <john@phrozen.org>, Lorenzo Bianconi <lorenzo@kernel.org>, Ryder Lee
<ryder.lee@mediatek.com>
Subject: [PATCH v2 3/5] bss coloring: disable BSS color during CCA
Date: Mon, 8 Nov 2021 11:04:24 +0800
Message-ID:
<9ac28de67dc46471179ef84d516727a153dc89c0.1636093546.git.ryder.lee@mediatek.com>
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Content preview: From: John Crispin <john@phrozen.org> While we are doing CCA
the bss color disable bit inside the he oper field needs to be set.
Tested-by:
Peter Chiu <chui-hao.chiu@mediatek.com> Co-developed-by: Lorenzo Bianconi
<lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: John Crispin <john@phrozen [...]
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From: John Crispin <john@phrozen.org>
While we are doing CCA the bss color disable bit inside the he oper field
needs to be set.
Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
src/ap/ieee802_11_he.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/src/ap/ieee802_11_he.c
+++ b/src/ap/ieee802_11_he.c
@@ -195,7 +195,7 @@ u8 * hostapd_eid_he_operation(struct hos
if (hapd->iface->conf->he_op.he_er_su_disable)
params |= HE_OPERATION_ER_SU_DISABLE;
- if (hapd->iface->conf->he_op.he_bss_color_disabled)
+ if (hapd->iface->conf->he_op.he_bss_color_disabled || hapd->cca_in_progress)
params |= HE_OPERATION_BSS_COLOR_DISABLED;
if (hapd->iface->conf->he_op.he_bss_color_partial)
params |= HE_OPERATION_BSS_COLOR_PARTIAL;

229
package/network/services/hostapd/patches/v2-4-5-bss-coloring-add-the-switch_color-handler-to-the-nl80211-driver.patch Normal file
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From: Ryder Lee <ryder.lee@mediatek.com>
To: Jouni Malinen <jouni@codeaurora.org>
CC: Felix Fietkau <nbd@nbd.name>, Lorenzo Bianconi
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Subject: [PATCH v2 4/5] bss coloring: add the switch_color handler to the
nl80211 driver
Date: Mon, 8 Nov 2021 11:04:25 +0800
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<c67dddcce3b58082415f4f967441c5c80663943c.1636093546.git.ryder.lee@mediatek.com>
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Content preview: From: John Crispin <john@phrozen.org> In order to start the
CCA process we need to send NL80211_CMD_COLOR_CHANGE to the kernel. This
patch adds the required code. Tested-by: Peter Chiu
<chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo
Bianconi <lorenzo@kernel.org> Signed-off-by: John Crispin <john@phrozen [...]
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From: John Crispin <john@phrozen.org>
In order to start the CCA process we need to send NL80211_CMD_COLOR_CHANGE
to the kernel. This patch adds the required code.
Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
src/drivers/driver_nl80211.c | 79 ++++++++++++++++++++++++++++++++++++
1 file changed, 79 insertions(+)
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -9966,6 +9966,82 @@ error:
}
+#ifdef CONFIG_IEEE80211AX
+static int nl80211_switch_color(void *priv, struct cca_settings *settings)
+{
+ struct nl_msg *msg;
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nlattr *beacon_cca;
+ int ret = -ENOBUFS;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Color change request (cca_count=%u color=%d)",
+ settings->cca_count, settings->cca_color);
+
+ if (drv->nlmode != NL80211_IFTYPE_AP)
+ return -EOPNOTSUPP;
+
+ if (!settings->beacon_cca.tail)
+ return -EINVAL;
+
+ if ((settings->beacon_cca.tail_len <= settings->counter_offset_beacon) ||
+ (settings->beacon_cca.tail[settings->counter_offset_beacon] !=
+ settings->cca_count))
+ return -EINVAL;
+
+ if (settings->beacon_cca.probe_resp &&
+ ((settings->beacon_cca.probe_resp_len <=
+ settings->counter_offset_presp) ||
+ (settings->beacon_cca.probe_resp[settings->counter_offset_presp] !=
+ settings->cca_count)))
+ return -EINVAL;
+
+ if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_COLOR_CHANGE_REQUEST)) ||
+ nla_put_u8(msg, NL80211_ATTR_COLOR_CHANGE_COUNT,
+ settings->cca_count) ||
+ nla_put_u8(msg, NL80211_ATTR_COLOR_CHANGE_COLOR,
+ settings->cca_color))
+ goto error;
+
+ /* beacon_after params */
+ ret = set_beacon_data(msg, &settings->beacon_after);
+ if (ret)
+ goto error;
+
+ /* beacon_csa params */
+ beacon_cca = nla_nest_start(msg, NL80211_ATTR_COLOR_CHANGE_ELEMS);
+ if (!beacon_cca)
+ goto fail;
+
+ ret = set_beacon_data(msg, &settings->beacon_cca);
+ if (ret)
+ goto error;
+
+ if (nla_put_u16(msg, NL80211_ATTR_CNTDWN_OFFS_BEACON,
+ settings->counter_offset_beacon) ||
+ (settings->beacon_cca.probe_resp &&
+ nla_put_u16(msg, NL80211_ATTR_CNTDWN_OFFS_PRESP,
+ settings->counter_offset_presp)))
+ goto fail;
+
+ nla_nest_end(msg, beacon_cca);
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL);
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: switch_color failed err=%d (%s)",
+ ret, strerror(-ret));
+ }
+ return ret;
+
+fail:
+ ret = -ENOBUFS;
+error:
+ nlmsg_free(msg);
+ wpa_printf(MSG_DEBUG, "nl80211: Could not build color switch request");
+ return ret;
+}
+#endif
+
+
static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr,
u8 user_priority, u16 admitted_time)
{
@@ -12215,6 +12291,9 @@ const struct wpa_driver_ops wpa_driver_n
.get_survey = wpa_driver_nl80211_get_survey,
.status = wpa_driver_nl80211_status,
.switch_channel = nl80211_switch_channel,
+#ifdef CONFIG_IEEE80211AX
+ .switch_color = nl80211_switch_color,
+#endif
#ifdef ANDROID_P2P
.set_noa = wpa_driver_set_p2p_noa,
.get_noa = wpa_driver_get_p2p_noa,

336
package/network/services/hostapd/patches/v2-5-5-bss-coloring-handle-the-collision-and-CCA-events-coming-from-the-kernel.patch Normal file
View File

@ -0,0 +1,336 @@
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From: Ryder Lee <ryder.lee@mediatek.com>
To: Jouni Malinen <jouni@codeaurora.org>
CC: Felix Fietkau <nbd@nbd.name>, Lorenzo Bianconi
<lorenzo.bianconi@redhat.com>, Shayne Chen <shayne.chen@mediatek.com>,
"Evelyn Tsai" <evelyn.tsai@mediatek.com>, <hostap@lists.infradead.org>, John
Crispin <john@phrozen.org>, Lorenzo Bianconi <lorenzo@kernel.org>, Ryder Lee
<ryder.lee@mediatek.com>
Subject: [PATCH v2 5/5] bss coloring: handle the collision and CCA events
coming from the kernel
Date: Mon, 8 Nov 2021 11:04:26 +0800
Message-ID:
<d77b2a2deaf750ca5d212de576acdfe7eb9e559a.1636093546.git.ryder.lee@mediatek.com>
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Content preview: From: John Crispin <john@phrozen.org> This patch activates
the functionality of the previous patches by handling the actual events that
will trigger the CCA process. Tested-by: Peter Chiu
<chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo
Bianconi <lorenzo@kernel.org> Signed-off-by: John Crispin <john@phrozen [...]
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From: John Crispin <john@phrozen.org>
This patch activates the functionality of the previous patches by handling
the actual events that will trigger the CCA process.
Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
src/ap/drv_callbacks.c | 45 ++++++++++++++++++++-
src/drivers/driver.h | 27 +++++++++++++
src/drivers/driver_common.c | 4 ++
src/drivers/driver_nl80211_event.c | 64 ++++++++++++++++++++++++++++++
4 files changed, 139 insertions(+), 1 deletion(-)
--- a/src/ap/drv_callbacks.c
+++ b/src/ap/drv_callbacks.c
@@ -43,7 +43,6 @@
#include "fils_hlp.h"
#include "neighbor_db.h"
-
#ifdef CONFIG_FILS
void hostapd_notify_assoc_fils_finish(struct hostapd_data *hapd,
struct sta_info *sta)
@@ -1783,6 +1782,39 @@ static void hostapd_event_wds_sta_interf
}
+#ifdef CONFIG_IEEE80211AX
+static void hostapd_event_bss_color_collision(struct hostapd_data *hapd,
+ u64 bitmap)
+{
+ /* the bss color is shared amongst all BBSs on a specific phy.
+ * therefore we always start the color change on the primary BSS
+ */
+ wpa_printf(MSG_DEBUG, "BSS color collision on %s", hapd->conf->iface);
+ hostapd_switch_color(hapd->iface->bss[0], bitmap);
+}
+
+static void hostapd_event_cca(struct hostapd_data *hapd, enum wpa_event_type event)
+{
+ switch (event) {
+ case EVENT_CCA_STARTED_NOTIFY:
+ wpa_printf(MSG_DEBUG, "CCA started on on %s", hapd->conf->iface);
+ break;
+ case EVENT_CCA_NOTIFY:
+ wpa_printf(MSG_DEBUG, "CCA finished on on %s", hapd->conf->iface);
+ hapd->iface->conf->he_op.he_bss_color = hapd->cca_color;
+ hostapd_cleanup_cca_params(hapd);
+ break;
+ case EVENT_CCA_ABORTED_NOTIFY:
+ wpa_printf(MSG_DEBUG, "CCA aborted on on %s", hapd->conf->iface);
+ hostapd_cleanup_cca_params(hapd);
+ break;
+ default:
+ break;
+ }
+}
+#endif
+
+
#ifdef CONFIG_OWE
static int hostapd_notif_update_dh_ie(struct hostapd_data *hapd,
const u8 *peer, const u8 *ie,
@@ -2089,6 +2121,17 @@ void hostapd_wpa_event(void *ctx, enum w
data->wds_sta_interface.ifname,
data->wds_sta_interface.sta_addr);
break;
+#ifdef CONFIG_IEEE80211AX
+ case EVENT_BSS_COLOR_COLLISION:
+ hostapd_event_bss_color_collision(hapd,
+ data->bss_color_collision.bitmap);
+ break;
+ case EVENT_CCA_STARTED_NOTIFY:
+ case EVENT_CCA_ABORTED_NOTIFY:
+ case EVENT_CCA_NOTIFY:
+ hostapd_event_cca(hapd, event);
+ break;
+#endif
default:
wpa_printf(MSG_DEBUG, "Unknown event %d", event);
break;
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -5165,6 +5165,26 @@ enum wpa_event_type {
* is required to provide more details of the frame.
*/
EVENT_UNPROT_BEACON,
+
+ /**
+ * EVENT_BSS_COLOR_COLLISION - Notification of a BSS color collision
+ */
+ EVENT_BSS_COLOR_COLLISION,
+
+ /**
+ * EVENT_CCA_STARTED_NOTIFY - Notification that CCA has started
+ */
+ EVENT_CCA_STARTED_NOTIFY,
+
+ /**
+ * EVENT_CCA_ABORTED_NOTIFY - Notification that CCA has aborted
+ */
+ EVENT_CCA_ABORTED_NOTIFY,
+
+ /**
+ * EVENT_CCA_NOTIFY - Notification that CCA has completed
+ */
+ EVENT_CCA_NOTIFY,
};
@@ -6059,6 +6079,13 @@ union wpa_event_data {
struct unprot_beacon {
const u8 *sa;
} unprot_beacon;
+
+ /**
+ * struct bss_color_collision - Data for EVENT_BSS_COLOR_COLLISION
+ */
+ struct bss_color_collision {
+ u64 bitmap;
+ } bss_color_collision;
};
/**
--- a/src/drivers/driver_common.c
+++ b/src/drivers/driver_common.c
@@ -90,6 +90,10 @@ const char * event_to_string(enum wpa_ev
E2S(WDS_STA_INTERFACE_STATUS);
E2S(UPDATE_DH);
E2S(UNPROT_BEACON);
+ E2S(BSS_COLOR_COLLISION);
+ E2S(CCA_STARTED_NOTIFY);
+ E2S(CCA_ABORTED_NOTIFY);
+ E2S(CCA_NOTIFY);
}
return "UNKNOWN";
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -2863,6 +2863,51 @@ nl80211_control_port_frame_tx_status(str
wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
}
+#ifdef CONFIG_IEEE80211AX
+static void mlme_event_obss_color_collision(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *tb[])
+{
+ union wpa_event_data data;
+
+ if (!tb[NL80211_ATTR_OBSS_COLOR_BITMAP])
+ return;
+
+ os_memset(&data, 0, sizeof(data));
+ data.bss_color_collision.bitmap = nla_get_u64(tb[NL80211_ATTR_OBSS_COLOR_BITMAP]);
+
+ wpa_printf(MSG_DEBUG, "nl80211: BSS color collision - bitmap %08lx",
+ data.bss_color_collision.bitmap);
+
+ wpa_supplicant_event(drv->ctx, EVENT_BSS_COLOR_COLLISION, &data);
+}
+
+static void mlme_event_color_change_announcement_started(struct wpa_driver_nl80211_data *drv)
+{
+ union wpa_event_data data = {};
+
+ wpa_printf(MSG_DEBUG, "nl80211: CCA started");
+
+ wpa_supplicant_event(drv->ctx, EVENT_CCA_STARTED_NOTIFY, &data);
+}
+
+static void mlme_event_color_change_announcement_aborted(struct wpa_driver_nl80211_data *drv)
+{
+ union wpa_event_data data = {};
+
+ wpa_printf(MSG_DEBUG, "nl80211: CCA aborted");
+
+ wpa_supplicant_event(drv->ctx, EVENT_CCA_ABORTED_NOTIFY, &data);
+}
+
+static void mlme_event_color_change_announcement_completed(struct wpa_driver_nl80211_data *drv)
+{
+ union wpa_event_data data = {};
+
+ wpa_printf(MSG_DEBUG, "nl80211: CCA completed");
+
+ wpa_supplicant_event(drv->ctx, EVENT_CCA_NOTIFY, &data);
+}
+#endif
static void do_process_drv_event(struct i802_bss *bss, int cmd,
struct nlattr **tb)
@@ -3112,6 +3157,20 @@ static void do_process_drv_event(struct
tb[NL80211_ATTR_ACK],
tb[NL80211_ATTR_COOKIE]);
break;
+#ifdef CONFIG_IEEE80211AX
+ case NL80211_CMD_OBSS_COLOR_COLLISION:
+ mlme_event_obss_color_collision(drv, tb);
+ break;
+ case NL80211_CMD_COLOR_CHANGE_STARTED:
+ mlme_event_color_change_announcement_started(drv);
+ break;
+ case NL80211_CMD_COLOR_CHANGE_ABORTED:
+ mlme_event_color_change_announcement_aborted(drv);
+ break;
+ case NL80211_CMD_COLOR_CHANGE_COMPLETED:
+ mlme_event_color_change_announcement_completed(drv);
+ break;
+#endif
default:
wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event "
"(cmd=%d)", cmd);