openwrtv4/package/network/services/hostapd/patches/340-reload_freq_change.patch
Abhilash Tuse 41feba8c4a hostapd: fix reload frequency change patch
When sta is configured, hostapd receives 'stop' and 'update' command from
wpa_supplicant. In the update command, hostapd gets sta parameters with
which it configures ap.

Problem is, with the default wireless configuration:
mode:11g freq:2.4GHz channel:1
If sta is connected to 5GHz network, then ap does not work. Ideally with
340-reload_freq_change.patch hostapd should reload the frequency changes
and start ap in 5GHz, but ap becomes invisible in the network.

This issue can be reproduced with following /etc/config/wireless:
config wifi-device  radio0
        option type     mac80211
        option channel  1
        option hwmode   11g
        option path     'virtual/uccp420/uccwlan'
        option htmode   'none'

config wifi-iface 'ap'
        option device 'radio0'
        option encryption 'none'
        option mode 'ap'
        option network 'ap'
        option ssid 'MyTestNet'
        option encryption none

config wifi-iface 'sta'
       option device radio0
       option network sta
       option mode sta
       option ssid TestNet-5G
       option encryption psk2
       option key 12345

This change updates current_mode structure based on configured hw_mode
received from wpa_supplicant. Also prepare rates table after frequency
selection.

Signed-off-by: Abhilash Tuse <Abhilash.Tuse@imgtec.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name> [cleanup, patch refresh]
2017-05-03 13:58:23 +02:00

69 lines
2.3 KiB
Diff

--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -80,6 +80,25 @@ static void hostapd_reload_bss(struct ho
#endif /* CONFIG_NO_RADIUS */
ssid = &hapd->conf->ssid;
+
+ hostapd_set_freq(hapd, hapd->iconf->hw_mode, hapd->iface->freq,
+ hapd->iconf->channel,
+ hapd->iconf->ieee80211n,
+ hapd->iconf->ieee80211ac,
+ hapd->iconf->secondary_channel,
+ hapd->iconf->vht_oper_chwidth,
+ hapd->iconf->vht_oper_centr_freq_seg0_idx,
+ hapd->iconf->vht_oper_centr_freq_seg1_idx);
+
+ if (hapd->iface->current_mode) {
+ if (hostapd_prepare_rates(hapd->iface, hapd->iface->current_mode)) {
+ wpa_printf(MSG_ERROR, "Failed to prepare rates table.");
+ hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
+ HOSTAPD_LEVEL_WARNING,
+ "Failed to prepare rates table.");
+ }
+ }
+
if (!ssid->wpa_psk_set && ssid->wpa_psk && !ssid->wpa_psk->next &&
ssid->wpa_passphrase_set && ssid->wpa_passphrase) {
/*
@@ -158,6 +177,7 @@ int hostapd_reload_config(struct hostapd
struct hostapd_data *hapd = iface->bss[0];
struct hostapd_config *newconf, *oldconf;
size_t j;
+ int i;
if (iface->config_fname == NULL) {
/* Only in-memory config in use - assume it has been updated */
@@ -179,21 +199,20 @@ int hostapd_reload_config(struct hostapd
oldconf = hapd->iconf;
iface->conf = newconf;
+ for (i = 0; i < iface->num_hw_features; i++) {
+ struct hostapd_hw_modes *mode = &iface->hw_features[i];
+ if (mode->mode == iface->conf->hw_mode) {
+ iface->current_mode = mode;
+ break;
+ }
+ }
+
+ if (iface->conf->channel)
+ iface->freq = hostapd_hw_get_freq(hapd, iface->conf->channel);
+
for (j = 0; j < iface->num_bss; j++) {
hapd = iface->bss[j];
hapd->iconf = newconf;
- hapd->iconf->channel = oldconf->channel;
- hapd->iconf->acs = oldconf->acs;
- hapd->iconf->secondary_channel = oldconf->secondary_channel;
- hapd->iconf->ieee80211n = oldconf->ieee80211n;
- hapd->iconf->ieee80211ac = oldconf->ieee80211ac;
- hapd->iconf->ht_capab = oldconf->ht_capab;
- hapd->iconf->vht_capab = oldconf->vht_capab;
- hapd->iconf->vht_oper_chwidth = oldconf->vht_oper_chwidth;
- hapd->iconf->vht_oper_centr_freq_seg0_idx =
- oldconf->vht_oper_centr_freq_seg0_idx;
- hapd->iconf->vht_oper_centr_freq_seg1_idx =
- oldconf->vht_oper_centr_freq_seg1_idx;
hapd->conf = newconf->bss[j];
hostapd_reload_bss(hapd);
}