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ACS: Extend hostapd_get_mode_channel() to find from any mode

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This is preparation for being able to support hw_mode=any to select the
best channel from any supported mode.

Signed-off-by: Neo Jou <neojou@gmail.com>
This commit is contained in:
Neo Jou 2020-01-13 16:31:28 +08:00 committed by Jouni Malinen
parent a62d761856
commit 499c37b729
3 changed files with 46 additions and 3 deletions
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24
src/ap/drv_callbacks.c
View file

@ -1429,15 +1429,33 @@ static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
#endif /* HOSTAPD */
static struct hostapd_channel_data *
hostapd_get_mode_chan(struct hostapd_hw_modes *mode, unsigned int freq)
{
int i;
struct hostapd_channel_data *chan;
for (i = 0; i < mode->num_channels; i++) {
chan = &mode->channels[i];
if ((unsigned int) chan->freq == freq)
return chan;
}
return NULL;
}
static struct hostapd_channel_data * hostapd_get_mode_channel(
struct hostapd_iface *iface, unsigned int freq)
{
int i;
struct hostapd_channel_data *chan;
for (i = 0; i < iface->current_mode->num_channels; i++) {
chan = &iface->current_mode->channels[i];
if ((unsigned int) chan->freq == freq)
for (i = 0; i < iface->num_hw_features; i++) {
if (hostapd_hw_skip_mode(iface, &iface->hw_features[i]))
continue;
chan = hostapd_get_mode_chan(&iface->hw_features[i], freq);
if (chan)
return chan;
}

17
src/ap/hw_features.c
View file

@ -1085,3 +1085,20 @@ int hostapd_hw_get_channel(struct hostapd_data *hapd, int freq)
}
return 0;
}
int hostapd_hw_skip_mode(struct hostapd_iface *iface,
struct hostapd_hw_modes *mode)
{
int i;
if (iface->current_mode)
return mode != iface->current_mode;
if (mode->mode != HOSTAPD_MODE_IEEE80211B)
return 0;
for (i = 0; i < iface->num_hw_features; i++) {
if (iface->hw_features[i].mode == HOSTAPD_MODE_IEEE80211G)
return 1;
}
return 0;
}

8
src/ap/hw_features.h
View file

@ -25,6 +25,8 @@ int hostapd_check_edmg_capab(struct hostapd_iface *iface);
int hostapd_prepare_rates(struct hostapd_iface *iface,
struct hostapd_hw_modes *mode);
void hostapd_stop_setup_timers(struct hostapd_iface *iface);
int hostapd_hw_skip_mode(struct hostapd_iface *iface,
struct hostapd_hw_modes *mode);
#else /* NEED_AP_MLME */
static inline void
hostapd_free_hw_features(struct hostapd_hw_modes *hw_features,
@ -77,6 +79,12 @@ static inline void hostapd_stop_setup_timers(struct hostapd_iface *iface)
{
}
static inline int hostapd_hw_skip_mode(struct hostapd_iface *iface,
struct hostapd_hw_modes *mode)
{
return 0;
}
#endif /* NEED_AP_MLME */
#endif /* HW_FEATURES_H */