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HS 2.0R2 AP: Add WNM-Notification Request for Subscription Remediation

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Subscription remediation notification can now be sent from hostapd with:
hostapd_cli hs20_wnm_notif 02:00:00:00:00:00 http://example.com/foo/

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2013-03-17 16:03:42 +02:00 • committed by Jouni Malinen
parent d5d24784e6
commit 3fb17a9530
5 changed files with 115 additions and 0 deletions
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52
src/ap/hs20.c
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@ -13,6 +13,7 @@
#include "common/ieee802_11_defs.h"
#include "hostapd.h"
#include "ap_config.h"
#include "ap_drv_ops.h"
#include "hs20.h"
@ -36,3 +37,54 @@ u8 * hostapd_eid_hs20_indication(struct hostapd_data *hapd, u8 *eid)
return eid;
}
int hs20_send_wnm_notification(struct hostapd_data *hapd, const u8 *addr,
u8 osu_method, const char *url)
{
struct wpabuf *buf;
size_t len = 0;
int ret;
/* TODO: should refuse to send notification if the STA is not associated
* or if the STA did not indicate support for WNM-Notification */
if (url) {
len = 1 + os_strlen(url);
if (5 + len > 255) {
wpa_printf(MSG_INFO, "HS 2.0: Too long URL for "
"WNM-Notification: '%s'", url);
return -1;
}
}
buf = wpabuf_alloc(4 + 7 + len);
if (buf == NULL)
return -1;
wpabuf_put_u8(buf, WLAN_ACTION_WNM);
wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
wpabuf_put_u8(buf, 1); /* Dialog token */
wpabuf_put_u8(buf, 1); /* Type - 1 reserved for WFA */
/* Subscription Remediation subelement */
wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
wpabuf_put_u8(buf, 5 + len);
wpabuf_put_be24(buf, OUI_WFA);
wpabuf_put_u8(buf, HS20_WNM_SUB_REM_NEEDED);
if (url) {
wpabuf_put_u8(buf, len - 1);
wpabuf_put_data(buf, url, len - 1);
wpabuf_put_u8(buf, osu_method);
} else {
/* Server URL and Server Method fields not included */
wpabuf_put_u8(buf, 0);
}
ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
wpabuf_head(buf), wpabuf_len(buf));
wpabuf_free(buf);
return ret;
}