hostapd: Move CSA parameters to hostapd_data
This prepares CSA structure and logic in hostapd for multi-BSS channel switching. Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
This commit is contained in:
parent
1de809e152
commit
6782b6846b
6 changed files with 54 additions and 44 deletions
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@ -265,18 +265,18 @@ static u8 * hostapd_eid_csa(struct hostapd_data *hapd, u8 *eid)
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{
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u8 chan;
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if (!hapd->iface->cs_freq_params.freq)
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if (!hapd->cs_freq_params.freq)
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return eid;
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if (ieee80211_freq_to_chan(hapd->iface->cs_freq_params.freq, &chan) ==
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if (ieee80211_freq_to_chan(hapd->cs_freq_params.freq, &chan) ==
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NUM_HOSTAPD_MODES)
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return eid;
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*eid++ = WLAN_EID_CHANNEL_SWITCH;
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*eid++ = 3;
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*eid++ = hapd->iface->cs_block_tx;
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*eid++ = hapd->cs_block_tx;
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*eid++ = chan;
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*eid++ = hapd->iface->cs_count;
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*eid++ = hapd->cs_count;
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return eid;
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}
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@ -286,12 +286,12 @@ static u8 * hostapd_eid_secondary_channel(struct hostapd_data *hapd, u8 *eid)
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{
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u8 sec_ch;
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if (!hapd->iface->cs_freq_params.sec_channel_offset)
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if (!hapd->cs_freq_params.sec_channel_offset)
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return eid;
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if (hapd->iface->cs_freq_params.sec_channel_offset == -1)
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if (hapd->cs_freq_params.sec_channel_offset == -1)
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sec_ch = HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW;
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else if (hapd->iface->cs_freq_params.sec_channel_offset == 1)
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else if (hapd->cs_freq_params.sec_channel_offset == 1)
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sec_ch = HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE;
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else
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return eid;
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@ -409,7 +409,7 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
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pos = hostapd_eid_roaming_consortium(hapd, pos);
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pos = hostapd_add_csa_elems(hapd, pos, (u8 *)resp,
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&hapd->iface->cs_c_off_proberesp);
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&hapd->cs_c_off_proberesp);
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#ifdef CONFIG_IEEE80211AC
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pos = hostapd_eid_vht_capabilities(hapd, pos);
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pos = hostapd_eid_vht_operation(hapd, pos);
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@ -824,7 +824,7 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
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tailpos = hostapd_eid_adv_proto(hapd, tailpos);
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tailpos = hostapd_eid_roaming_consortium(hapd, tailpos);
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tailpos = hostapd_add_csa_elems(hapd, tailpos, tail,
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&hapd->iface->cs_c_off_beacon);
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&hapd->cs_c_off_beacon);
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#ifdef CONFIG_IEEE80211AC
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tailpos = hostapd_eid_vht_capabilities(hapd, tailpos);
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tailpos = hostapd_eid_vht_operation(hapd, tailpos);
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@ -957,7 +957,7 @@ int ieee802_11_set_beacon(struct hostapd_data *hapd)
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struct wpabuf *beacon, *proberesp, *assocresp;
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int res, ret = -1;
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if (hapd->iface->csa_in_progress) {
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if (hapd->csa_in_progress) {
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wpa_printf(MSG_ERROR, "Cannot set beacons during CSA period");
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return -1;
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}
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14
src/ap/dfs.c
14
src/ap/dfs.c
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@ -756,6 +756,16 @@ static int hostapd_dfs_start_channel_switch_cac(struct hostapd_iface *iface)
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}
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static int hostapd_csa_in_progress(struct hostapd_iface *iface)
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{
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unsigned int i;
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for (i = 0; i < iface->num_bss; i++)
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if (iface->bss[i]->csa_in_progress)
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return 1;
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return 0;
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}
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static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
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{
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struct hostapd_channel_data *channel;
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@ -769,10 +779,10 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
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wpa_printf(MSG_DEBUG, "%s called (CAC active: %s, CSA active: %s)",
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__func__, iface->cac_started ? "yes" : "no",
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iface->csa_in_progress ? "yes" : "no");
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hostapd_csa_in_progress(iface) ? "yes" : "no");
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/* Check if CSA in progress */
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if (iface->csa_in_progress)
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if (hostapd_csa_in_progress(iface))
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return 0;
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/* Check if active CAC */
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@ -489,9 +489,10 @@ void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
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hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
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hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
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if (hapd->iface->csa_in_progress &&
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freq == hapd->iface->cs_freq_params.freq) {
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if (hapd->csa_in_progress &&
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freq == hapd->cs_freq_params.freq) {
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hostapd_cleanup_cs_params(hapd);
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ieee802_11_set_beacon(hapd);
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wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED "freq=%d",
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freq);
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@ -2175,13 +2175,12 @@ static void free_beacon_data(struct beacon_data *beacon)
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}
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static int hostapd_build_beacon_data(struct hostapd_iface *iface,
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static int hostapd_build_beacon_data(struct hostapd_data *hapd,
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struct beacon_data *beacon)
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{
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struct wpabuf *beacon_extra, *proberesp_extra, *assocresp_extra;
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struct wpa_driver_ap_params params;
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int ret;
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struct hostapd_data *hapd = iface->bss[0];
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os_memset(beacon, 0, sizeof(*beacon));
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ret = ieee802_11_build_ap_params(hapd, ¶ms);
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@ -2305,14 +2304,15 @@ static int hostapd_change_config_freq(struct hostapd_data *hapd,
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}
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static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
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static int hostapd_fill_csa_settings(struct hostapd_data *hapd,
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struct csa_settings *settings)
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{
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struct hostapd_iface *iface = hapd->iface;
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struct hostapd_freq_params old_freq;
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int ret;
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os_memset(&old_freq, 0, sizeof(old_freq));
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if (!iface || !iface->freq || iface->csa_in_progress)
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if (!iface || !iface->freq || hapd->csa_in_progress)
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return -1;
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ret = hostapd_change_config_freq(iface->bss[0], iface->conf,
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@ -2321,7 +2321,7 @@ static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
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if (ret)
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return ret;
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ret = hostapd_build_beacon_data(iface, &settings->beacon_after);
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ret = hostapd_build_beacon_data(hapd, &settings->beacon_after);
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/* change back the configuration */
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hostapd_change_config_freq(iface->bss[0], iface->conf,
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@ -2331,18 +2331,18 @@ static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
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return ret;
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/* set channel switch parameters for csa ie */
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iface->cs_freq_params = settings->freq_params;
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iface->cs_count = settings->cs_count;
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iface->cs_block_tx = settings->block_tx;
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hapd->cs_freq_params = settings->freq_params;
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hapd->cs_count = settings->cs_count;
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hapd->cs_block_tx = settings->block_tx;
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ret = hostapd_build_beacon_data(iface, &settings->beacon_csa);
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ret = hostapd_build_beacon_data(hapd, &settings->beacon_csa);
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if (ret) {
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free_beacon_data(&settings->beacon_after);
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return ret;
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}
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settings->counter_offset_beacon = iface->cs_c_off_beacon;
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settings->counter_offset_presp = iface->cs_c_off_proberesp;
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settings->counter_offset_beacon = hapd->cs_c_off_beacon;
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settings->counter_offset_presp = hapd->cs_c_off_proberesp;
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return 0;
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}
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@ -2350,13 +2350,12 @@ static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
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void hostapd_cleanup_cs_params(struct hostapd_data *hapd)
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{
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os_memset(&hapd->iface->cs_freq_params, 0,
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sizeof(hapd->iface->cs_freq_params));
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hapd->iface->cs_count = 0;
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hapd->iface->cs_block_tx = 0;
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hapd->iface->cs_c_off_beacon = 0;
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hapd->iface->cs_c_off_proberesp = 0;
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hapd->iface->csa_in_progress = 0;
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os_memset(&hapd->cs_freq_params, 0, sizeof(hapd->cs_freq_params));
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hapd->cs_count = 0;
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hapd->cs_block_tx = 0;
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hapd->cs_c_off_beacon = 0;
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hapd->cs_c_off_proberesp = 0;
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hapd->csa_in_progress = 0;
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}
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@ -2364,7 +2363,7 @@ int hostapd_switch_channel(struct hostapd_data *hapd,
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struct csa_settings *settings)
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{
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int ret;
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ret = hostapd_fill_csa_settings(hapd->iface, settings);
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ret = hostapd_fill_csa_settings(hapd, settings);
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if (ret)
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return ret;
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@ -2378,7 +2377,7 @@ int hostapd_switch_channel(struct hostapd_data *hapd,
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return ret;
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}
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hapd->iface->csa_in_progress = 1;
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hapd->csa_in_progress = 1;
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return 0;
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}
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@ -210,6 +210,14 @@ struct hostapd_data {
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size_t psk_len);
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void *new_psk_cb_ctx;
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/* channel switch parameters */
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struct hostapd_freq_params cs_freq_params;
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u8 cs_count;
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int cs_block_tx;
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unsigned int cs_c_off_beacon;
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unsigned int cs_c_off_proberesp;
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int csa_in_progress;
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#ifdef CONFIG_P2P
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struct p2p_data *p2p;
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struct p2p_group *p2p_group;
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@ -343,14 +351,6 @@ struct hostapd_iface {
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/* lowest observed noise floor in dBm */
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s8 lowest_nf;
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/* channel switch parameters */
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struct hostapd_freq_params cs_freq_params;
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u8 cs_count;
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int cs_block_tx;
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unsigned int cs_c_off_beacon;
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unsigned int cs_c_off_proberesp;
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int csa_in_progress;
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unsigned int dfs_cac_ms;
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struct os_reltime dfs_cac_start;
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@ -1680,7 +1680,7 @@ static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
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bss->freq = data.ch_switch.freq;
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wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
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wpa_supplicant_event(bss->ctx, EVENT_CH_SWITCH, &data);
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}
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@ -12118,7 +12118,7 @@ static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
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return -ENOMEM;
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nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH);
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NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
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NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
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NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count);
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ret = nl80211_put_freq_params(msg, &settings->freq_params);
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if (ret)
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