diff mbox

[RFC,1/3] hostapd: Move CSA structures to hostapd_data

Message ID 1395150910-20595-2-git-send-email-michal.kazior@tieto.com
State Superseded
Headers show

Commit Message

Michal Kazior March 18, 2014, 1:55 p.m. UTC 
This prepares CSA structure and logic in hostapd for multi-BSS support.

Signed-hostap: Michal Kazior <michal.kazior@tieto.com>
---
 src/ap/beacon.c              | 20 ++++++++++----------
 src/ap/dfs.c                 | 14 ++++++++++++--
 src/ap/drv_callbacks.c       |  8 +++++---
 src/ap/hostapd.c             | 40 ++++++++++++++++++++--------------------
 src/ap/hostapd.h             | 16 ++++++++--------
 src/drivers/driver_nl80211.c |  4 ++--
 6 files changed, 57 insertions(+), 45 deletions(-)
diff mbox

Patch

diff --git a/src/ap/beacon.c b/src/ap/beacon.c
index e06ce77..c4341f2 100644
--- a/src/ap/beacon.c
+++ b/src/ap/beacon.c
@@ -265,18 +265,18 @@  static u8 * hostapd_eid_csa(struct hostapd_data *hapd, u8 *eid)
 {
 	u8 chan;
 
-	if (!hapd->iface->cs_freq_params.freq)
+	if (!hapd->cs_freq_params.freq)
 		return eid;
 
-	if (ieee80211_freq_to_chan(hapd->iface->cs_freq_params.freq, &chan) ==
+	if (ieee80211_freq_to_chan(hapd->cs_freq_params.freq, &chan) ==
 	    NUM_HOSTAPD_MODES)
 		return eid;
 
 	*eid++ = WLAN_EID_CHANNEL_SWITCH;
 	*eid++ = 3;
-	*eid++ = hapd->iface->cs_block_tx;
+	*eid++ = hapd->cs_block_tx;
 	*eid++ = chan;
-	*eid++ = hapd->iface->cs_count;
+	*eid++ = hapd->cs_count;
 
 	return eid;
 }
@@ -286,12 +286,12 @@  static u8 * hostapd_eid_secondary_channel(struct hostapd_data *hapd, u8 *eid)
 {
 	u8 sec_ch;
 
-	if (!hapd->iface->cs_freq_params.sec_channel_offset)
+	if (!hapd->cs_freq_params.sec_channel_offset)
 		return eid;
 
-	if (hapd->iface->cs_freq_params.sec_channel_offset == -1)
+	if (hapd->cs_freq_params.sec_channel_offset == -1)
 		sec_ch = HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW;
-	else if (hapd->iface->cs_freq_params.sec_channel_offset == 1)
+	else if (hapd->cs_freq_params.sec_channel_offset == 1)
 		sec_ch = HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE;
 	else
 		return eid;
@@ -409,7 +409,7 @@  static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
 	pos = hostapd_eid_roaming_consortium(hapd, pos);
 
 	pos = hostapd_add_csa_elems(hapd, pos, (u8 *)resp,
-				    &hapd->iface->cs_c_off_proberesp);
+				    &hapd->cs_c_off_proberesp);
 #ifdef CONFIG_IEEE80211AC
 	pos = hostapd_eid_vht_capabilities(hapd, pos);
 	pos = hostapd_eid_vht_operation(hapd, pos);
@@ -823,7 +823,7 @@  int ieee802_11_build_ap_params(struct hostapd_data *hapd,
 	tailpos = hostapd_eid_adv_proto(hapd, tailpos);
 	tailpos = hostapd_eid_roaming_consortium(hapd, tailpos);
 	tailpos = hostapd_add_csa_elems(hapd, tailpos, tail,
-					&hapd->iface->cs_c_off_beacon);
+					&hapd->cs_c_off_beacon);
 #ifdef CONFIG_IEEE80211AC
 	tailpos = hostapd_eid_vht_capabilities(hapd, tailpos);
 	tailpos = hostapd_eid_vht_operation(hapd, tailpos);
@@ -953,7 +953,7 @@  int ieee802_11_set_beacon(struct hostapd_data *hapd)
 	struct wpabuf *beacon, *proberesp, *assocresp;
 	int res, ret = -1;
 
-	if (hapd->iface->csa_in_progress) {
+	if (hapd->csa_in_progress) {
 		wpa_printf(MSG_ERROR, "Cannot set beacons during CSA period");
 		return -1;
 	}
diff --git a/src/ap/dfs.c b/src/ap/dfs.c
index 0f262ce..9e8389f 100644
--- a/src/ap/dfs.c
+++ b/src/ap/dfs.c
@@ -729,6 +729,16 @@  static int hostapd_dfs_start_channel_switch_cac(struct hostapd_iface *iface)
 }
 
 
+static int hostapd_csa_in_progress(struct hostapd_iface *iface)
+{
+	int i;
+	for (i = 0; i < iface->num_bss; i++)
+		if (iface->bss[0]->csa_in_progress)
+			return 1;
+	return 0;
+}
+
+
 static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 {
 	struct hostapd_channel_data *channel;
@@ -742,10 +752,10 @@  static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
 
 	wpa_printf(MSG_DEBUG, "%s called (CAC active: %s, CSA active: %s)",
 		   __func__, iface->cac_started ? "yes" : "no",
-		   iface->csa_in_progress ? "yes" : "no");
+		   hostapd_csa_in_progress(iface) ? "yes" : "no");
 
 	/* Check if CSA in progress */
-	if (iface->csa_in_progress)
+	if (hostapd_csa_in_progress(iface))
 		return 0;
 
 	/* Check if active CAC */
diff --git a/src/ap/drv_callbacks.c b/src/ap/drv_callbacks.c
index 3c6a376..e3b1e7b 100644
--- a/src/ap/drv_callbacks.c
+++ b/src/ap/drv_callbacks.c
@@ -30,6 +30,7 @@ 
 #include "ap_config.h"
 #include "hw_features.h"
 #include "dfs.h"
+#include "beacon.h"
 
 
 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
@@ -483,11 +484,12 @@  void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
 	else
 		hapd->iconf->ht_capab &= ~HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
 
-	if (hapd->iface->csa_in_progress &&
-	    freq == hapd->iface->cs_freq_params.freq) {
-		hapd->iconf->ieee80211ac = hapd->iface->cs_freq_params.vht_enabled;
+	if (hapd->csa_in_progress &&
+	    freq == hapd->cs_freq_params.freq) {
+		hapd->iconf->ieee80211ac = hapd->cs_freq_params.vht_enabled;
 
 		hostapd_cleanup_cs_params(hapd);
+		ieee802_11_set_beacon(hapd);
 
 		wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED "freq=%d",
 			freq);
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index 4ed718c..06b3f5b 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -2118,13 +2118,12 @@  static void free_beacon_data(struct beacon_data *beacon)
 }
 
 
-static int hostapd_build_beacon_data(struct hostapd_iface *iface,
+static int hostapd_build_beacon_data(struct hostapd_data *hapd,
 				     struct beacon_data *beacon)
 {
 	struct wpabuf *beacon_extra, *proberesp_extra, *assocresp_extra;
 	struct wpa_driver_ap_params params;
 	int ret;
-	struct hostapd_data *hapd = iface->bss[0];
 
 	os_memset(beacon, 0, sizeof(*beacon));
 	ret = ieee802_11_build_ap_params(hapd, &params);
@@ -2248,14 +2247,15 @@  static int hostapd_change_config_freq(struct hostapd_data *hapd,
 }
 
 
-static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
+static int hostapd_fill_csa_settings(struct hostapd_data *hapd,
 				     struct csa_settings *settings)
 {
+	struct hostapd_iface *iface = hapd->iface;
 	struct hostapd_freq_params old_freq;
 	int ret;
 
 	os_memset(&old_freq, 0, sizeof(old_freq));
-	if (!iface || !iface->freq || iface->csa_in_progress)
+	if (!iface || !iface->freq || hapd->csa_in_progress)
 		return -1;
 
 	ret = hostapd_change_config_freq(iface->bss[0], iface->conf,
@@ -2264,7 +2264,7 @@  static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
 	if (ret)
 		return ret;
 
-	ret = hostapd_build_beacon_data(iface, &settings->beacon_after);
+	ret = hostapd_build_beacon_data(hapd, &settings->beacon_after);
 
 	/* change back the configuration */
 	hostapd_change_config_freq(iface->bss[0], iface->conf,
@@ -2274,18 +2274,18 @@  static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
 		return ret;
 
 	/* set channel switch parameters for csa ie */
-	iface->cs_freq_params = settings->freq_params;
-	iface->cs_count = settings->cs_count;
-	iface->cs_block_tx = settings->block_tx;
+	hapd->cs_freq_params = settings->freq_params;
+	hapd->cs_count = settings->cs_count;
+	hapd->cs_block_tx = settings->block_tx;
 
-	ret = hostapd_build_beacon_data(iface, &settings->beacon_csa);
+	ret = hostapd_build_beacon_data(hapd, &settings->beacon_csa);
 	if (ret) {
 		free_beacon_data(&settings->beacon_after);
 		return ret;
 	}
 
-	settings->counter_offset_beacon = iface->cs_c_off_beacon;
-	settings->counter_offset_presp = iface->cs_c_off_proberesp;
+	settings->counter_offset_beacon = hapd->cs_c_off_beacon;
+	settings->counter_offset_presp = hapd->cs_c_off_proberesp;
 
 	return 0;
 }
@@ -2293,13 +2293,13 @@  static int hostapd_fill_csa_settings(struct hostapd_iface *iface,
 
 void hostapd_cleanup_cs_params(struct hostapd_data *hapd)
 {
-	os_memset(&hapd->iface->cs_freq_params, 0,
-		  sizeof(hapd->iface->cs_freq_params));
-	hapd->iface->cs_count = 0;
-	hapd->iface->cs_block_tx = 0;
-	hapd->iface->cs_c_off_beacon = 0;
-	hapd->iface->cs_c_off_proberesp = 0;
-	hapd->iface->csa_in_progress = 0;
+	os_memset(&hapd->cs_freq_params, 0,
+		  sizeof(hapd->cs_freq_params));
+	hapd->cs_count = 0;
+	hapd->cs_block_tx = 0;
+	hapd->cs_c_off_beacon = 0;
+	hapd->cs_c_off_proberesp = 0;
+	hapd->csa_in_progress = 0;
 }
 
 
@@ -2307,7 +2307,7 @@  int hostapd_switch_channel(struct hostapd_data *hapd,
 			   struct csa_settings *settings)
 {
 	int ret;
-	ret = hostapd_fill_csa_settings(hapd->iface, settings);
+	ret = hostapd_fill_csa_settings(hapd, settings);
 	if (ret)
 		return ret;
 
@@ -2321,7 +2321,7 @@  int hostapd_switch_channel(struct hostapd_data *hapd,
 		return ret;
 	}
 
-	hapd->iface->csa_in_progress = 1;
+	hapd->csa_in_progress = 1;
 	return 0;
 }
 
diff --git a/src/ap/hostapd.h b/src/ap/hostapd.h
index 9a705a4..ad1a0ee 100644
--- a/src/ap/hostapd.h
+++ b/src/ap/hostapd.h
@@ -210,6 +210,14 @@  struct hostapd_data {
 			   size_t psk_len);
 	void *new_psk_cb_ctx;
 
+	/* channel switch parameters */
+	struct hostapd_freq_params cs_freq_params;
+	u8 cs_count;
+	int cs_block_tx;
+	unsigned int cs_c_off_beacon;
+	unsigned int cs_c_off_proberesp;
+	int csa_in_progress;
+
 #ifdef CONFIG_P2P
 	struct p2p_data *p2p;
 	struct p2p_group *p2p_group;
@@ -340,14 +348,6 @@  struct hostapd_iface {
 	/* lowest observed noise floor in dBm */
 	s8 lowest_nf;
 
-	/* channel switch parameters */
-	struct hostapd_freq_params cs_freq_params;
-	u8 cs_count;
-	int cs_block_tx;
-	unsigned int cs_c_off_beacon;
-	unsigned int cs_c_off_proberesp;
-	int csa_in_progress;
-
 #ifdef CONFIG_ACS
 	unsigned int acs_num_completed_scans;
 #endif /* CONFIG_ACS */
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index d60f95b..dd119c4 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -1653,7 +1653,7 @@  static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
 
 	bss->freq = data.ch_switch.freq;
 
-	wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
+	wpa_supplicant_event(bss->ctx, EVENT_CH_SWITCH, &data);
 }
 
 
@@ -11700,7 +11700,7 @@  static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
 		return -ENOMEM;
 
 	nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH);
-	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
 	NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count);
 	ret = nl80211_put_freq_params(msg, &settings->freq_params);
 	if (ret)