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Wed, 10 Feb 2021 11:07:33 +0000 From: Shay Bar To: Jouni Malinen , hostap@lists.infradead.org Subject: [PATCH 1/3] hostap: Remove the VHT naming from the element Date: Wed, 10 Feb 2021 13:07:17 +0200 Message-Id: <20210210110719.6007-2-shay.bar@celeno.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210210110719.6007-1-shay.bar@celeno.com> References: <20210210110719.6007-1-shay.bar@celeno.com> X-Originating-IP: [87.71.34.224] X-ClientProxiedBy: AM0PR02CA0025.eurprd02.prod.outlook.com (2603:10a6:208:3e::38) To AM0P192MB0468.EURP192.PROD.OUTLOOK.COM (2603:10a6:208:45::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (87.71.34.224) by AM0PR02CA0025.eurprd02.prod.outlook.com (2603:10a6:208:3e::38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3846.25 via Frontend Transport; Wed, 10 Feb 2021 11:07:32 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 62858f0a-adf4-48d8-45db-08d8cdb41083 X-MS-TrafficTypeDiagnostic: AM9P192MB1000: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; 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Remove the VHT naming from the element. move hostapd_eid_txpower_envelope() from ieee802_11_vht.c to ieee802_11.c. Signed-off-by: Shay Bar --- src/ap/ieee802_11.c | 112 +++++++++++++++++++++++++++++++++++ src/ap/ieee802_11_vht.c | 112 ----------------------------------- src/common/ieee802_11_defs.h | 2 +- 3 files changed, 113 insertions(+), 113 deletions(-) diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c index 76a7ffa9e..13fa450df 100644 --- a/src/ap/ieee802_11.c +++ b/src/ap/ieee802_11.c @@ -6766,6 +6766,118 @@ void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, } +u8 * hostapd_eid_txpower_envelope(struct hostapd_data *hapd, u8 *eid) +{ + struct hostapd_iface *iface = hapd->iface; + struct hostapd_config *iconf = iface->conf; + struct hostapd_hw_modes *mode = iface->current_mode; + struct hostapd_channel_data *chan; + int dfs, i; + u8 channel, tx_pwr_count, local_pwr_constraint; + int max_tx_power; + u8 tx_pwr; + + if (!mode) + return eid; + + if (ieee80211_freq_to_chan(iface->freq, &channel) == NUM_HOSTAPD_MODES) + return eid; + + for (i = 0; i < mode->num_channels; i++) { + if (mode->channels[i].freq == iface->freq) + break; + } + if (i == mode->num_channels) + return eid; + + switch (iface->conf->vht_oper_chwidth) { + case CHANWIDTH_USE_HT: + if (iconf->secondary_channel == 0) { + /* Max Transmit Power count = 0 (20 MHz) */ + tx_pwr_count = 0; + } else { + /* Max Transmit Power count = 1 (20, 40 MHz) */ + tx_pwr_count = 1; + } + break; + case CHANWIDTH_80MHZ: + /* Max Transmit Power count = 2 (20, 40, and 80 MHz) */ + tx_pwr_count = 2; + break; + case CHANWIDTH_80P80MHZ: + case CHANWIDTH_160MHZ: + /* Max Transmit Power count = 3 (20, 40, 80, 160/80+80 MHz) */ + tx_pwr_count = 3; + break; + default: + return eid; + } + + /* + * Below local_pwr_constraint logic is referred from + * hostapd_eid_pwr_constraint. + * + * Check if DFS is required by regulatory. + */ + dfs = hostapd_is_dfs_required(hapd->iface); + if (dfs < 0) + dfs = 0; + + /* + * In order to meet regulations when TPC is not implemented using + * a transmit power that is below the legal maximum (including any + * mitigation factor) should help. In this case, indicate 3 dB below + * maximum allowed transmit power. + */ + if (hapd->iconf->local_pwr_constraint == -1) + local_pwr_constraint = (dfs == 0) ? 0 : 3; + else + local_pwr_constraint = hapd->iconf->local_pwr_constraint; + + /* + * A STA that is not an AP shall use a transmit power less than or + * equal to the local maximum transmit power level for the channel. + * The local maximum transmit power can be calculated from the formula: + * local max TX pwr = max TX pwr - local pwr constraint + * Where max TX pwr is maximum transmit power level specified for + * channel in Country element and local pwr constraint is specified + * for channel in this Power Constraint element. + */ + chan = &mode->channels[i]; + max_tx_power = chan->max_tx_power - local_pwr_constraint; + + /* + * Local Maximum Transmit power is encoded as two's complement + * with a 0.5 dB step. + */ + max_tx_power *= 2; /* in 0.5 dB steps */ + if (max_tx_power > 127) { + /* 63.5 has special meaning of 63.5 dBm or higher */ + max_tx_power = 127; + } + if (max_tx_power < -128) + max_tx_power = -128; + if (max_tx_power < 0) + tx_pwr = 0x80 + max_tx_power + 128; + else + tx_pwr = max_tx_power; + + *eid++ = WLAN_EID_TRANSMIT_POWER_ENVELOPE; + *eid++ = 2 + tx_pwr_count; + + /* + * Max Transmit Power count and + * Max Transmit Power units = 0 (EIRP) + */ + *eid++ = tx_pwr_count; + + for (i = 0; i <= tx_pwr_count; i++) + *eid++ = tx_pwr; + + return eid; +} + + u8 * hostapd_eid_wb_chsw_wrapper(struct hostapd_data *hapd, u8 *eid) { u8 bw, chan1, chan2 = 0; diff --git a/src/ap/ieee802_11_vht.c b/src/ap/ieee802_11_vht.c index c925bf12c..d0370229c 100644 --- a/src/ap/ieee802_11_vht.c +++ b/src/ap/ieee802_11_vht.c @@ -167,118 +167,6 @@ static int check_valid_vht_mcs(struct hostapd_hw_modes *mode, } -u8 * hostapd_eid_txpower_envelope(struct hostapd_data *hapd, u8 *eid) -{ - struct hostapd_iface *iface = hapd->iface; - struct hostapd_config *iconf = iface->conf; - struct hostapd_hw_modes *mode = iface->current_mode; - struct hostapd_channel_data *chan; - int dfs, i; - u8 channel, tx_pwr_count, local_pwr_constraint; - int max_tx_power; - u8 tx_pwr; - - if (!mode) - return eid; - - if (ieee80211_freq_to_chan(iface->freq, &channel) == NUM_HOSTAPD_MODES) - return eid; - - for (i = 0; i < mode->num_channels; i++) { - if (mode->channels[i].freq == iface->freq) - break; - } - if (i == mode->num_channels) - return eid; - - switch (iface->conf->vht_oper_chwidth) { - case CHANWIDTH_USE_HT: - if (iconf->secondary_channel == 0) { - /* Max Transmit Power count = 0 (20 MHz) */ - tx_pwr_count = 0; - } else { - /* Max Transmit Power count = 1 (20, 40 MHz) */ - tx_pwr_count = 1; - } - break; - case CHANWIDTH_80MHZ: - /* Max Transmit Power count = 2 (20, 40, and 80 MHz) */ - tx_pwr_count = 2; - break; - case CHANWIDTH_80P80MHZ: - case CHANWIDTH_160MHZ: - /* Max Transmit Power count = 3 (20, 40, 80, 160/80+80 MHz) */ - tx_pwr_count = 3; - break; - default: - return eid; - } - - /* - * Below local_pwr_constraint logic is referred from - * hostapd_eid_pwr_constraint. - * - * Check if DFS is required by regulatory. - */ - dfs = hostapd_is_dfs_required(hapd->iface); - if (dfs < 0) - dfs = 0; - - /* - * In order to meet regulations when TPC is not implemented using - * a transmit power that is below the legal maximum (including any - * mitigation factor) should help. In this case, indicate 3 dB below - * maximum allowed transmit power. - */ - if (hapd->iconf->local_pwr_constraint == -1) - local_pwr_constraint = (dfs == 0) ? 0 : 3; - else - local_pwr_constraint = hapd->iconf->local_pwr_constraint; - - /* - * A STA that is not an AP shall use a transmit power less than or - * equal to the local maximum transmit power level for the channel. - * The local maximum transmit power can be calculated from the formula: - * local max TX pwr = max TX pwr - local pwr constraint - * Where max TX pwr is maximum transmit power level specified for - * channel in Country element and local pwr constraint is specified - * for channel in this Power Constraint element. - */ - chan = &mode->channels[i]; - max_tx_power = chan->max_tx_power - local_pwr_constraint; - - /* - * Local Maximum Transmit power is encoded as two's complement - * with a 0.5 dB step. - */ - max_tx_power *= 2; /* in 0.5 dB steps */ - if (max_tx_power > 127) { - /* 63.5 has special meaning of 63.5 dBm or higher */ - max_tx_power = 127; - } - if (max_tx_power < -128) - max_tx_power = -128; - if (max_tx_power < 0) - tx_pwr = 0x80 + max_tx_power + 128; - else - tx_pwr = max_tx_power; - - *eid++ = WLAN_EID_VHT_TRANSMIT_POWER_ENVELOPE; - *eid++ = 2 + tx_pwr_count; - - /* - * Max Transmit Power count and - * Max Transmit Power units = 0 (EIRP) - */ - *eid++ = tx_pwr_count; - - for (i = 0; i <= tx_pwr_count; i++) - *eid++ = tx_pwr; - - return eid; -} - - u16 copy_sta_vht_capab(struct hostapd_data *hapd, struct sta_info *sta, const u8 *vht_capab) { diff --git a/src/common/ieee802_11_defs.h b/src/common/ieee802_11_defs.h index 4fdc3b2d9..87d01d58a 100644 --- a/src/common/ieee802_11_defs.h +++ b/src/common/ieee802_11_defs.h @@ -434,7 +434,7 @@ #define WLAN_EID_VHT_OPERATION 192 #define WLAN_EID_VHT_EXTENDED_BSS_LOAD 193 #define WLAN_EID_VHT_WIDE_BW_CHSWITCH 194 -#define WLAN_EID_VHT_TRANSMIT_POWER_ENVELOPE 195 +#define WLAN_EID_TRANSMIT_POWER_ENVELOPE 195 #define WLAN_EID_VHT_CHANNEL_SWITCH_WRAPPER 196 #define WLAN_EID_VHT_AID 197 #define WLAN_EID_VHT_QUIET_CHANNEL 198 From patchwork Wed Feb 10 11:07:18 2021 Content-Type: text/plain; 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Signed-off-by: Shay Bar --- src/ap/ieee802_11.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c index 13fa450df..233da7bfc 100644 --- a/src/ap/ieee802_11.c +++ b/src/ap/ieee802_11.c @@ -6790,7 +6790,7 @@ u8 * hostapd_eid_txpower_envelope(struct hostapd_data *hapd, u8 *eid) if (i == mode->num_channels) return eid; - switch (iface->conf->vht_oper_chwidth) { + switch (hostapd_get_oper_chwidth(iconf)) { case CHANWIDTH_USE_HT: if (iconf->secondary_channel == 0) { /* Max Transmit Power count = 0 (20 MHz) */ From patchwork Wed Feb 10 11:07:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shay Bar X-Patchwork-Id: 1438918 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2001:8b0:10b:1231::1; helo=merlin.infradead.org; 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X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [40.107.3.72 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.3.72 listed in wl.mailspike.net] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: hostap@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Hostap" Errors-To: hostap-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org According to IEEE P802.11ax/D8.0, Add Transmit Power Envelope element for 6GHz HE AP. Signed-off-by: Shay Bar --- src/ap/beacon.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/ap/beacon.c b/src/ap/beacon.c index 477caa494..c8ac0e007 100644 --- a/src/ap/beacon.c +++ b/src/ap/beacon.c @@ -563,6 +563,12 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd, } #endif /* CONFIG_IEEE80211AC */ +#ifdef CONFIG_IEEE80211AX + if ((hapd->iconf->ieee80211ax && !hapd->conf->disable_11ax) && + (is_6ghz_op_class(hapd->iconf->op_class))) + pos = hostapd_eid_txpower_envelope(hapd, pos); +#endif /* CONFIG_IEEE80211AX */ + if ((hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) || (hapd->iconf->ieee80211ax && !hapd->conf->disable_11ax)) pos = hostapd_eid_wb_chsw_wrapper(hapd, pos); @@ -1291,6 +1297,12 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd, } #endif /* CONFIG_IEEE80211AC */ +#ifdef CONFIG_IEEE80211AX + if ((hapd->iconf->ieee80211ax && !hapd->conf->disable_11ax) && + (is_6ghz_op_class(hapd->iconf->op_class))) + tailpos = hostapd_eid_txpower_envelope(hapd, tailpos); +#endif /* CONFIG_IEEE80211AX */ + if ((hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) || (hapd->iconf->ieee80211ax && !hapd->conf->disable_11ax)) tailpos = hostapd_eid_wb_chsw_wrapper(hapd, tailpos);