void ieee802_11_mgmt(struct hostapd_data *hapd, u8 *buf, size_t len, u16 stype)
{
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) buf;
if (stype == WLAN_FC_STYPE_BEACON) {
HOSTAPD_DEBUG(HOSTAPD_DEBUG_EXCESSIVE, "mgmt::beacon\n");
handle_beacon(hapd, mgmt, len);
return;
}
if (memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0 &&
(hapd->assoc_ap_state == DO_NOT_ASSOC ||
memcmp(mgmt->bssid, hapd->conf->assoc_ap_addr, ETH_ALEN) != 0)) {
printf("MGMT: BSSID=" MACSTR " not our address\n",
MAC2STR(mgmt->bssid));
return;
}
if (stype == WLAN_FC_STYPE_PROBE_REQ) {
printf("mgmt::probe_req\n");
return;
}
if (memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) {
printf("MGMT: DA=" MACSTR " not our address\n",
MAC2STR(mgmt->da));
return;
}
switch (stype) {
case WLAN_FC_STYPE_AUTH:
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "mgmt::auth\n");
handle_auth(hapd, mgmt, len);
break;
case WLAN_FC_STYPE_ASSOC_REQ:
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "mgmt::assoc_req\n");
handle_assoc(hapd, mgmt, len, 0);
break;
case WLAN_FC_STYPE_ASSOC_RESP:
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "mgmt::assoc_resp\n");
handle_assoc_resp(hapd, mgmt, len);
break;
case WLAN_FC_STYPE_REASSOC_REQ:
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "mgmt::reassoc_req\n");
handle_assoc(hapd, mgmt, len, 1);
break;
case WLAN_FC_STYPE_DISASSOC:
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "mgmt::disassoc\n");
handle_disassoc(hapd, mgmt, len);
break;
case WLAN_FC_STYPE_DEAUTH:
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "mgmt::deauth\n");
handle_deauth(hapd, mgmt, len);
break;
default:
printf("unknown mgmt frame subtype %d\n", stype);
break;
}
}
static int
mgmt_body_print(u_int16_t fc, const struct mgmt_header_t *pmh,
const u_char *p, u_int length)
{
switch (FC_SUBTYPE(fc)) {
case ST_ASSOC_REQUEST:
printf("Assoc Request");
return handle_assoc_request(p, length);
case ST_ASSOC_RESPONSE:
printf("Assoc Response");
return handle_assoc_response(p, length);
case ST_REASSOC_REQUEST:
printf("ReAssoc Request");
return handle_reassoc_request(p, length);
case ST_REASSOC_RESPONSE:
printf("ReAssoc Response");
return handle_reassoc_response(p, length);
case ST_PROBE_REQUEST:
printf("Probe Request");
return handle_probe_request(p, length);
case ST_PROBE_RESPONSE:
printf("Probe Response");
return handle_probe_response(p, length);
case ST_BEACON:
printf("Beacon");
return handle_beacon(p, length);
case ST_ATIM:
printf("ATIM");
return handle_atim();
case ST_DISASSOC:
printf("Disassociation");
return handle_disassoc(p, length);
case ST_AUTH:
printf("Authentication");
if (!TTEST2(*p, 3))
return 0;
if ((p[0] == 0 ) && (p[1] == 0) && (p[2] == 0)) {
printf("Authentication (Shared-Key)-3 ");
return wep_print(p);
}
return handle_auth(p, length);
case ST_DEAUTH:
printf("DeAuthentication");
return handle_deauth(pmh, p, length);
break;
case ST_ACTION:
printf("Action");
return handle_action(pmh, p, length);
break;
default:
printf("Unhandled Management subtype(%x)",
FC_SUBTYPE(fc));
return 1;
}
}
static int
mgmt_body_print(u_int16_t fc, const struct mgmt_header_t *pmh,
const u_char *p)
{
printf("%s", subtype_text[FC_SUBTYPE(fc)]);
switch (FC_SUBTYPE(fc)) {
case ST_ASSOC_REQUEST:
return handle_assoc_request(p);
case ST_ASSOC_RESPONSE:
return handle_assoc_response(p);
case ST_REASSOC_REQUEST:
return handle_reassoc_request(p);
case ST_REASSOC_RESPONSE:
return handle_reassoc_response(p);
case ST_PROBE_REQUEST:
return handle_probe_request(p);
case ST_PROBE_RESPONSE:
return handle_probe_response(p);
case ST_BEACON:
return handle_beacon(p);
case ST_ATIM:
return handle_atim();
case ST_DISASSOC:
return handle_disassoc(p);
case ST_AUTH:
if (!TTEST2(*p, 3))
return 0;
if ((p[0] == 0 ) && (p[1] == 0) && (p[2] == 0)) {
printf("Authentication (Shared-Key)-3 ");
return wep_print(p);
}
return handle_auth(p);
case ST_DEAUTH:
return handle_deauth(pmh, p);
break;
default:
printf("Unhandled Management subtype(%x)",
FC_SUBTYPE(fc));
return 1;
}
}
/**
* ieee802_11_mgmt - process incoming IEEE 802.11 management frames
* @hapd: hostapd BSS data structure (the BSS to which the management frame was
* sent to)
* @buf: management frame data (starting from IEEE 802.11 header)
* @len: length of frame data in octets
* @fi: meta data about received frame (signal level, etc.)
*
* Process all incoming IEEE 802.11 management frames. This will be called for
* each frame received from the kernel driver through wlan#ap interface. In
* addition, it can be called to re-inserted pending frames (e.g., when using
* external RADIUS server as an MAC ACL).
*/
void ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len,
struct hostapd_frame_info *fi)
{
struct ieee80211_mgmt *mgmt;
int broadcast;
u16 fc, stype;
mgmt = (struct ieee80211_mgmt *) buf;
fc = le_to_host16(mgmt->frame_control);
stype = WLAN_FC_GET_STYPE(fc);
if (stype == WLAN_FC_STYPE_BEACON) {
handle_beacon(hapd, mgmt, len, fi);
return;
}
broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff &&
mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff &&
mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff;
if (!broadcast &&
os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) {
printf("MGMT: BSSID=" MACSTR " not our address\n",
MAC2STR(mgmt->bssid));
return;
}
if (stype == WLAN_FC_STYPE_PROBE_REQ) {
handle_probe_req(hapd, mgmt, len);
return;
}
if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) {
hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"MGMT: DA=" MACSTR " not our address",
MAC2STR(mgmt->da));
return;
}
switch (stype) {
case WLAN_FC_STYPE_AUTH:
wpa_printf(MSG_DEBUG, "mgmt::auth");
handle_auth(hapd, mgmt, len);
break;
case WLAN_FC_STYPE_ASSOC_REQ:
wpa_printf(MSG_DEBUG, "mgmt::assoc_req");
handle_assoc(hapd, mgmt, len, 0);
break;
case WLAN_FC_STYPE_REASSOC_REQ:
wpa_printf(MSG_DEBUG, "mgmt::reassoc_req");
handle_assoc(hapd, mgmt, len, 1);
break;
case WLAN_FC_STYPE_DISASSOC:
wpa_printf(MSG_DEBUG, "mgmt::disassoc");
handle_disassoc(hapd, mgmt, len);
break;
case WLAN_FC_STYPE_DEAUTH:
wpa_printf(MSG_DEBUG, "mgmt::deauth");
handle_deauth(hapd, mgmt, len);
break;
case WLAN_FC_STYPE_ACTION:
wpa_printf(MSG_DEBUG, "mgmt::action");
handle_action(hapd, mgmt, len);
break;
default:
hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"unknown mgmt frame subtype %d", stype);
break;
}
}
