wpa_supplicant: Pass in operating class for channel validity checks
This is needed to allow the 6 GHz operating classes to be compared against the driver support channels since the channel numbers are not really unique identifiers of a channel even within a single band. Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
parent
3fa701b5ce
commit
89450024a8
3 changed files with 51 additions and 29 deletions
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@ -16,13 +16,19 @@
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#include "wpa_supplicant_i.h"
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static enum chan_allowed allow_channel(struct hostapd_hw_modes *mode, u8 chan,
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static enum chan_allowed allow_channel(struct hostapd_hw_modes *mode,
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u8 op_class, u8 chan,
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unsigned int *flags)
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{
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int i;
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int is_6ghz = op_class >= 131 && op_class <= 135;
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for (i = 0; i < mode->num_channels; i++) {
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if (mode->channels[i].chan == chan)
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int chan_is_6ghz;
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chan_is_6ghz = mode->channels[i].freq > 5940 &&
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mode->channels[i].freq <= 7105;
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if (is_6ghz == chan_is_6ghz && mode->channels[i].chan == chan)
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break;
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}
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@ -62,7 +68,8 @@ static int get_center_80mhz(struct hostapd_hw_modes *mode, u8 channel)
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}
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static enum chan_allowed verify_80mhz(struct hostapd_hw_modes *mode, u8 channel)
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static enum chan_allowed verify_80mhz(struct hostapd_hw_modes *mode,
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u8 op_class, u8 channel)
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{
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u8 center_chan;
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unsigned int i;
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@ -77,7 +84,8 @@ static enum chan_allowed verify_80mhz(struct hostapd_hw_modes *mode, u8 channel)
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unsigned int flags;
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u8 adj_chan = center_chan - 6 + i * 4;
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if (allow_channel(mode, adj_chan, &flags) == NOT_ALLOWED)
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if (allow_channel(mode, op_class, adj_chan, &flags) ==
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NOT_ALLOWED)
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return NOT_ALLOWED;
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if ((i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70)) ||
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@ -120,7 +128,7 @@ static int get_center_160mhz(struct hostapd_hw_modes *mode, u8 channel)
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static enum chan_allowed verify_160mhz(struct hostapd_hw_modes *mode,
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u8 channel)
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u8 op_class, u8 channel)
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{
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u8 center_chan;
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unsigned int i;
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@ -135,7 +143,8 @@ static enum chan_allowed verify_160mhz(struct hostapd_hw_modes *mode,
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unsigned int flags;
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u8 adj_chan = center_chan - 14 + i * 4;
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if (allow_channel(mode, adj_chan, &flags) == NOT_ALLOWED)
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if (allow_channel(mode, op_class, adj_chan, &flags) ==
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NOT_ALLOWED)
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return NOT_ALLOWED;
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if ((i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150)) ||
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@ -159,42 +168,42 @@ static enum chan_allowed verify_160mhz(struct hostapd_hw_modes *mode,
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}
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enum chan_allowed verify_channel(struct hostapd_hw_modes *mode, u8 channel,
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u8 bw)
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enum chan_allowed verify_channel(struct hostapd_hw_modes *mode, u8 op_class,
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u8 channel, u8 bw)
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{
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unsigned int flag = 0;
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enum chan_allowed res, res2;
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res2 = res = allow_channel(mode, channel, &flag);
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res2 = res = allow_channel(mode, op_class, channel, &flag);
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if (bw == BW40MINUS) {
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if (!(flag & HOSTAPD_CHAN_HT40MINUS))
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return NOT_ALLOWED;
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res2 = allow_channel(mode, channel - 4, NULL);
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res2 = allow_channel(mode, op_class, channel - 4, NULL);
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} else if (bw == BW40PLUS) {
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if (!(flag & HOSTAPD_CHAN_HT40PLUS))
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return NOT_ALLOWED;
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res2 = allow_channel(mode, channel + 4, NULL);
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res2 = allow_channel(mode, op_class, channel + 4, NULL);
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} else if (bw == BW80) {
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/*
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* channel is a center channel and as such, not necessarily a
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* valid 20 MHz channels. Override earlier allow_channel()
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* result and use only the 80 MHz specific version.
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*/
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res2 = res = verify_80mhz(mode, channel);
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res2 = res = verify_80mhz(mode, op_class, channel);
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} else if (bw == BW160) {
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/*
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* channel is a center channel and as such, not necessarily a
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* valid 20 MHz channels. Override earlier allow_channel()
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* result and use only the 160 MHz specific version.
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*/
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res2 = res = verify_160mhz(mode, channel);
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res2 = res = verify_160mhz(mode, op_class, channel);
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} else if (bw == BW80P80) {
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/*
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* channel is a center channel and as such, not necessarily a
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* valid 20 MHz channels. Override earlier allow_channel()
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* result and use only the 80 MHz specific version.
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*/
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res2 = res = verify_80mhz(mode, channel);
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res2 = res = verify_80mhz(mode, op_class, channel);
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}
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if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
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@ -284,7 +293,8 @@ static int wpas_op_class_supported(struct wpa_supplicant *wpa_s,
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u8 channels[] = { 42, 58, 106, 122, 138, 155 };
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for (i = 0; i < ARRAY_SIZE(channels); i++) {
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if (verify_channel(mode, channels[i], op_class->bw) !=
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if (verify_channel(mode, op_class->op_class,
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channels[i], op_class->bw) !=
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NOT_ALLOWED)
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return 1;
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}
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@ -294,25 +304,35 @@ static int wpas_op_class_supported(struct wpa_supplicant *wpa_s,
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if (op_class->op_class == 129) {
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/* Check if either 160 MHz channels is allowed */
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return verify_channel(mode, 50, op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, 114, op_class->bw) != NOT_ALLOWED;
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return verify_channel(mode, op_class->op_class, 50,
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op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, op_class->op_class, 114,
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op_class->bw) != NOT_ALLOWED;
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}
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if (op_class->op_class == 130) {
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/* Need at least two non-contiguous 80 MHz segments */
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found = 0;
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if (verify_channel(mode, 42, op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, 58, op_class->bw) != NOT_ALLOWED)
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if (verify_channel(mode, op_class->op_class, 42,
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op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, op_class->op_class, 58,
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op_class->bw) != NOT_ALLOWED)
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found++;
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if (verify_channel(mode, 106, op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, 122, op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, 138, op_class->bw) != NOT_ALLOWED)
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if (verify_channel(mode, op_class->op_class, 106,
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op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, op_class->op_class, 122,
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op_class->bw) != NOT_ALLOWED ||
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verify_channel(mode, op_class->op_class, 138,
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op_class->bw) != NOT_ALLOWED)
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found++;
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if (verify_channel(mode, 106, op_class->bw) != NOT_ALLOWED &&
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verify_channel(mode, 138, op_class->bw) != NOT_ALLOWED)
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if (verify_channel(mode, op_class->op_class, 106,
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op_class->bw) != NOT_ALLOWED &&
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verify_channel(mode, op_class->op_class, 138,
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op_class->bw) != NOT_ALLOWED)
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found++;
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if (verify_channel(mode, 155, op_class->bw) != NOT_ALLOWED)
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if (verify_channel(mode, op_class->op_class, 155,
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op_class->bw) != NOT_ALLOWED)
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found++;
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if (found >= 2)
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@ -324,7 +344,8 @@ static int wpas_op_class_supported(struct wpa_supplicant *wpa_s,
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found = 0;
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for (chan = op_class->min_chan; chan <= op_class->max_chan;
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chan += op_class->inc) {
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if (verify_channel(mode, chan, op_class->bw) != NOT_ALLOWED) {
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if (verify_channel(mode, op_class->op_class, chan,
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op_class->bw) != NOT_ALLOWED) {
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found = 1;
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break;
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}
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@ -528,7 +528,8 @@ static int * wpas_add_channels(const struct oper_class_map *op,
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next_freq = freqs;
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for (i = 0; i < num_chans; i++) {
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u8 chan = channels ? channels[i] : op->min_chan + i * op->inc;
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enum chan_allowed res = verify_channel(mode, chan, op->bw);
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enum chan_allowed res = verify_channel(mode, op->op_class, chan,
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op->bw);
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if (res == NOT_ALLOWED || (res == NO_IR && active))
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continue;
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@ -1423,8 +1423,8 @@ enum chan_allowed {
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NOT_ALLOWED, NO_IR, ALLOWED
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};
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enum chan_allowed verify_channel(struct hostapd_hw_modes *mode, u8 channel,
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u8 bw);
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enum chan_allowed verify_channel(struct hostapd_hw_modes *mode, u8 op_class,
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u8 channel, u8 bw);
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size_t wpas_supp_op_class_ie(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid,
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int freq, u8 *pos, size_t len);
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