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Search through all hw_features sets in hw_get_channel_freq() 

The 5 GHz channels are stored in one hw_features set with mode
HOSTAPD_MODE_IEEE80211A while the 6 GHz channels will need to stored in
a separate hw_features set (but with same mode HOSTAPD_MODE_IEEE80211A)
due to possibility of different HE capabilities being available between
the 5 GHz and 6 GHz bands.

Search through all hw_features sets whose mode is same as the input mode
while finding channel corresponding to the input frequency in
hw_get_channel_freq().

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Ankita Bajaj 2019-11-18 12:00:06 +05:30 committed by Jouni Malinen
parent 15d3568739
commit 840532aea5
3 changed files with 36 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/ap/hw_features.c
View File

@ -987,7 +987,9 @@ int hostapd_select_hw_mode(struct hostapd_iface *iface)
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) {
if (freq > 0 && !hw_get_chan(mode, freq))
if (freq > 0 && !hw_get_chan(mode->mode, freq,
iface->hw_features,
iface->num_hw_features))
continue;
iface->current_mode = mode;
break;
@ -1051,7 +1053,9 @@ int hostapd_hw_get_channel(struct hostapd_data *hapd, int freq)
struct hostapd_hw_modes *mode;
if (hapd->iface->current_mode) {
channel = hw_get_chan(hapd->iface->current_mode, freq);
channel = hw_get_chan(hapd->iface->current_mode->mode, freq,
hapd->iface->hw_features,
hapd->iface->num_hw_features);
if (channel)
return channel;
}
@ -1062,7 +1066,9 @@ int hostapd_hw_get_channel(struct hostapd_data *hapd, int freq)
return 0;
for (i = 0; i < hapd->iface->num_hw_features; i++) {
mode = &hapd->iface->hw_features[i];
channel = hw_get_chan(mode, freq);
channel = hw_get_chan(mode->mode, freq,
hapd->iface->hw_features,
hapd->iface->num_hw_features);
if (channel)
return channel;
}

34
src/common/hw_features_common.c
View File

@ -40,23 +40,32 @@ struct hostapd_channel_data * hw_get_channel_chan(struct hostapd_hw_modes *mode,
}
struct hostapd_channel_data * hw_get_channel_freq(struct hostapd_hw_modes *mode,
int freq, int *chan)
struct hostapd_channel_data *
hw_get_channel_freq(enum hostapd_hw_mode mode, int freq, int *chan,
struct hostapd_hw_modes *hw_features, int num_hw_features)
{
int i;
int i, j;
if (chan)
*chan = 0;
if (!mode)
if (!hw_features)
return NULL;
for (i = 0; i < mode->num_channels; i++) {
struct hostapd_channel_data *ch = &mode->channels[i];
if (ch->freq == freq) {
if (chan)
*chan = ch->chan;
return ch;
for (j = 0; j < num_hw_features; j++) {
struct hostapd_hw_modes *curr_mode = &hw_features[j];
if (curr_mode->mode != mode)
continue;
for (i = 0; i < curr_mode->num_channels; i++) {
struct hostapd_channel_data *ch =
&curr_mode->channels[i];
if (ch->freq == freq) {
if (chan)
*chan = ch->chan;
return ch;
}
}
}
@ -74,11 +83,12 @@ int hw_get_freq(struct hostapd_hw_modes *mode, int chan)
}
int hw_get_chan(struct hostapd_hw_modes *mode, int freq)
int hw_get_chan(enum hostapd_hw_mode mode, int freq,
struct hostapd_hw_modes *hw_features, int num_hw_features)
{
int chan;
hw_get_channel_freq(mode, freq, &chan);
hw_get_channel_freq(mode, freq, &chan, hw_features, num_hw_features);
return chan;
}

8
src/common/hw_features_common.h
View File

@ -14,11 +14,13 @@
struct hostapd_channel_data * hw_get_channel_chan(struct hostapd_hw_modes *mode,
int chan, int *freq);
struct hostapd_channel_data * hw_get_channel_freq(struct hostapd_hw_modes *mode,
int freq, int *chan);
struct hostapd_channel_data *
hw_get_channel_freq(enum hostapd_hw_mode mode, int freq, int *chan,
struct hostapd_hw_modes *hw_features, int num_hw_features);
int hw_get_freq(struct hostapd_hw_modes *mode, int chan);
int hw_get_chan(struct hostapd_hw_modes *mode, int freq);
int hw_get_chan(enum hostapd_hw_mode mode, int freq,
struct hostapd_hw_modes *hw_features, int num_hw_features);
int allowed_ht40_channel_pair(struct hostapd_hw_modes *mode, int pri_chan,
int sec_chan);