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scan: add Extended Capabilities to scan requests 

This will be seen in Probe Requests. More IEs can and should
be added here depending on the support in IWD. E.g. HS20 indication,
Interworking, HT/VHT IE's etc.
This commit is contained in:
James Prestwood 2019-08-21 13:20:03 -07:00 committed by Denis Kenzior
parent 92e1838cbe
commit a9473df555
1 changed files with 22 additions and 4 deletions
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26
src/scan.c
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@ -283,15 +283,33 @@ static struct l_genl_msg *scan_build_cmd(struct scan_context *sc,
{
struct l_genl_msg *msg;
uint32_t flags = 0;
struct iovec iov[2];
unsigned int iov_elems = 0;
const uint8_t *ext_capa;
msg = l_genl_msg_new(NL80211_CMD_TRIGGER_SCAN);
l_genl_msg_append_attr(msg, NL80211_ATTR_WDEV, 8, &sc->wdev_id);
if (params->extra_ie && params->extra_ie_size)
l_genl_msg_append_attr(msg, NL80211_ATTR_IE,
params->extra_ie_size,
params->extra_ie);
ext_capa = wiphy_get_extended_capabilities(sc->wiphy,
NL80211_IFTYPE_STATION);
/*
* XXX: If adding IE's here ensure that ordering is not broken for
* probe requests (IEEE-2016 Table 9-33).
*/
/* Order 9 - Extended Capabilities */
iov[iov_elems].iov_base = (void *) ext_capa;
iov[iov_elems].iov_len = ext_capa[1] + 2;
iov_elems++;
/* Order Last (assuming WSC vendor specific) */
if (params->extra_ie && params->extra_ie_size) {
iov[iov_elems].iov_base = (void *) params->extra_ie;
iov[iov_elems].iov_len = params->extra_ie_size;
iov_elems++;
}
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, iov_elems);
if (params->freqs)
scan_build_attr_scan_frequencies(msg, params->freqs);