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LinuxKPI: 802.11: implement cfg80211_get_ies_channel_number()

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Using the previous changes implement cfg80211_get_ies_channel_number()
either based on DSPARMS (or for the future HTINFO).

Sponsored by:	The FreeBSD Foundation
MFC after:	10 days
This commit is contained in:
Bjoern A. Zeeb 2022-12-31 01:59:20 +00:00
parent 5db817d864
commit 13d87d92e4
1 changed files with 26 additions and 2 deletions
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28
sys/compat/linuxkpi/common/include/net/cfg80211.h
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@ -1740,12 +1740,36 @@ cfg80211_channel_is_psc(struct linuxkpi_ieee80211_channel *channel)
return (false);
}
static __inline int
static inline int
cfg80211_get_ies_channel_number(const uint8_t *ie, size_t len,
enum nl80211_band band, enum cfg80211_bss_frame_type ftype)
{
const struct element *elem;
TODO();
switch (band) {
case NL80211_BAND_6GHZ:
TODO();
break;
case NL80211_BAND_5GHZ:
case NL80211_BAND_2GHZ:
/* DSPARAMS has the channel number. */
elem = cfg80211_find_elem(IEEE80211_ELEMID_DSPARMS, ie, len);
if (elem != NULL && elem->datalen == 1)
return (elem->data[0]);
/* HTINFO has the primary center channel. */
elem = cfg80211_find_elem(IEEE80211_ELEMID_HTINFO, ie, len);
if (elem != NULL &&
elem->datalen >= (sizeof(struct ieee80211_ie_htinfo) - 2)) {
const struct ieee80211_ie_htinfo *htinfo;
htinfo = (const struct ieee80211_ie_htinfo *)elem;
return (htinfo->hi_ctrlchannel);
}
/* What else? */
break;
default:
IMPROVE("Unsupported");
break;
}
return (-1);
}