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nl80211: Allow driver-based roam to change ESS

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This extends NL80211_CMD_ROAM event processing to allow the driver to
roam to another ESS (different SSID) when using offloaded BSS selection.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Krishna Vamsi 2015-03-13 17:59:20 +05:30 • committed by Jouni Malinen
parent 05121d3564
commit c41d0840a1
4 changed files with 35 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

1
src/drivers/driver_nl80211.h
View file

@ -270,5 +270,6 @@ int wpa_driver_nl80211_sched_scan(void *priv,
int wpa_driver_nl80211_stop_sched_scan(void *priv);
struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv);
void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv);
const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie);
#endif /* DRIVER_NL80211_H */

11
src/drivers/driver_nl80211_event.c
View file

@ -271,6 +271,7 @@ static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
struct nlattr *ptk_kek)
{
union wpa_event_data event;
const u8 *ssid;
u16 status_code;
if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
@ -331,6 +332,16 @@ static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
if (req_ie) {
event.assoc_info.req_ies = nla_data(req_ie);
event.assoc_info.req_ies_len = nla_len(req_ie);
if (cmd == NL80211_CMD_ROAM) {
ssid = nl80211_get_ie(event.assoc_info.req_ies,
event.assoc_info.req_ies_len,
WLAN_EID_SSID);
if (ssid && ssid[1] > 0 && ssid[1] <= 32) {
drv->ssid_len = ssid[1];
os_memcpy(drv->ssid, ssid + 2, ssid[1]);
}
}
}
if (resp_ie) {
event.assoc_info.resp_ies = nla_data(resp_ie);

2
src/drivers/driver_nl80211_scan.c
View file

@ -433,7 +433,7 @@ int wpa_driver_nl80211_stop_sched_scan(void *priv)
}
static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
{
const u8 *end, *pos;