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scan: add Extended Capabilities to scan requests

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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; struct l_genl_msg *msg;
uint32_t flags = 0; 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); msg = l_genl_msg_new(NL80211_CMD_TRIGGER_SCAN);
l_genl_msg_append_attr(msg, NL80211_ATTR_WDEV, 8, &sc->wdev_id); l_genl_msg_append_attr(msg, NL80211_ATTR_WDEV, 8, &sc->wdev_id);
if (params->extra_ie && params->extra_ie_size) ext_capa = wiphy_get_extended_capabilities(sc->wiphy,
l_genl_msg_append_attr(msg, NL80211_ATTR_IE, NL80211_IFTYPE_STATION);
params->extra_ie_size, /*
params->extra_ie); * 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) if (params->freqs)
scan_build_attr_scan_frequencies(msg, params->freqs); scan_build_attr_scan_frequencies(msg, params->freqs);