Amazing-Mirror/fragattacks
1
0
Fork 0
mirror of https://github.com/vanhoefm/fragattacks.git synced 2024-11-28 18:28:23 -05:00
Code Issues Projects Releases Wiki Activity

wpa_supplicant: Add LCI and civic request to Neighbor Report Request

Browse Source 
Add an option to request LCI and Location Civic Measurement in Neighbor
Report Request frame, as described in IEEE P802.11-REVmc/D5.0, 9.6.7.6.

Note: This changes the encoding format of the NEIGHBOR_REP_REQUEST
ssid=<val> parameter. This used to be parsed as raw SSID data which is
problematic for accepting additional parameters. The new encoding allows
either a string within double-quotation marks or a hexdump of the raw
SSID.

Thew new format:
NEIGHBOR_REP_REQUEST [ssid=<SSID>] [lci] [civic]

Signed-off-by: David Spinadel <david.spinadel@intel.com>
This commit is contained in:
David Spinadel 2016-04-06 19:42:05 +03:00 committed by Jouni Malinen
parent 624b8a061f
commit d41a5352fe
4 changed files with 108 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
wpa_supplicant/ctrl_iface.c
View File

@ -8222,19 +8222,37 @@ static void wpas_ctrl_neighbor_rep_cb(void *ctx, struct wpabuf *neighbor_rep)
static int wpas_ctrl_iface_send_neigbor_rep(struct wpa_supplicant *wpa_s,
char *cmd)
{
struct wpa_ssid ssid;
struct wpa_ssid *ssid_p = NULL;
int ret = 0;
struct wpa_ssid_value ssid, *ssid_p = NULL;
int ret, lci = 0, civic = 0;
char *ssid_s;
if (os_strncmp(cmd, " ssid=", 6) == 0) {
ssid.ssid_len = os_strlen(cmd + 6);
if (ssid.ssid_len > SSID_MAX_LEN)
ssid_s = os_strstr(cmd, "ssid=");
if (ssid_s) {
if (ssid_parse(ssid_s + 5, &ssid)) {
wpa_printf(MSG_ERROR,
"CTRL: Send Neighbor Report: bad SSID");
return -1;
ssid.ssid = (u8 *) (cmd + 6);
ssid_p = &ssid;
}
ret = wpas_rrm_send_neighbor_rep_request(wpa_s, ssid_p,
ssid_p = &ssid;
/*
* Move cmd after the SSID text that may include "lci" or
* "civic".
*/
cmd = os_strchr(ssid_s + 6, ssid_s[5] == '"' ? '"' : ' ');
if (cmd)
cmd++;
}
if (cmd && os_strstr(cmd, "lci"))
lci = 1;
if (cmd && os_strstr(cmd, "civic"))
civic = 1;
ret = wpas_rrm_send_neighbor_rep_request(wpa_s, ssid_p, lci, civic,
wpas_ctrl_neighbor_rep_cb,
wpa_s);

3
wpa_supplicant/wpa_cli.c
View File

@ -3455,8 +3455,7 @@ static const struct wpa_cli_cmd wpa_cli_commands[] = {
},
{ "neighbor_rep_request",
wpa_cli_cmd_neighbor_rep_request, NULL, cli_cmd_flag_none,
"[ssid=<SSID>] = Trigger request to AP for neighboring AP report "
"(with optional given SSID, default: current SSID)"
"[ssid=<SSID>] [lci] [civic] = Trigger request to AP for neighboring AP report (with optional given SSID in hex or enclosed in double quotes, default: current SSID; with optional LCI and location civic request)"
},
{ "erp_flush", wpa_cli_cmd_erp_flush, NULL, cli_cmd_flag_none,
"= flush ERP keys" },

81
wpa_supplicant/wpa_supplicant.c
View File

@ -6162,11 +6162,19 @@ void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
#define ECANCELED -1
#endif
/* Measurement Request element + Location Subject + Maximum Age subelement */
#define MEASURE_REQUEST_LCI_LEN (3 + 1 + 4)
/* Measurement Request element + Location Civic Request */
#define MEASURE_REQUEST_CIVIC_LEN (3 + 5)
/**
* wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
* @wpa_s: Pointer to wpa_supplicant
* @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
* is sent in the request.
* @lci: if set, neighbor request will include LCI request
* @civic: if set, neighbor request will include civic location request
* @cb: Callback function to be called once the requested report arrives, or
* timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
* In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
@ -6180,7 +6188,8 @@ void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
* Request must contain a callback function.
*/
int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
const struct wpa_ssid *ssid,
const struct wpa_ssid_value *ssid,
int lci, int civic,
void (*cb)(void *ctx,
struct wpabuf *neighbor_rep),
void *cb_ctx)
@ -6221,7 +6230,9 @@ int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
}
/* 3 = action category + action code + dialog token */
buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0));
buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0) +
(lci ? 2 + MEASURE_REQUEST_LCI_LEN : 0) +
(civic ? 2 + MEASURE_REQUEST_CIVIC_LEN : 0));
if (buf == NULL) {
wpa_printf(MSG_DEBUG,
"RRM: Failed to allocate Neighbor Report Request");
@ -6241,6 +6252,72 @@ int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len);
}
if (lci) {
/* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
wpabuf_put_u8(buf, MEASURE_REQUEST_LCI_LEN);
/*
* Measurement token; nonzero number that is unique among the
* Measurement Request elements in a particular frame.
*/
wpabuf_put_u8(buf, 1); /* Measurement Token */
/*
* Parallel, Enable, Request, and Report bits are 0, Duration is
* reserved.
*/
wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
wpabuf_put_u8(buf, MEASURE_TYPE_LCI); /* Measurement Type */
/* IEEE P802.11-REVmc/D5.0 9.4.2.21.10 - LCI request */
/* Location Subject */
wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
/* Optional Subelements */
/*
* IEEE P802.11-REVmc/D5.0 Figure 9-170
* The Maximum Age subelement is required, otherwise the AP can
* send only data that was determined after receiving the
* request. Setting it here to unlimited age.
*/
wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE);
wpabuf_put_u8(buf, 2);
wpabuf_put_le16(buf, 0xffff);
}
if (civic) {
/* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
wpabuf_put_u8(buf, MEASURE_REQUEST_CIVIC_LEN);
/*
* Measurement token; nonzero number that is unique among the
* Measurement Request elements in a particular frame.
*/
wpabuf_put_u8(buf, 2); /* Measurement Token */
/*
* Parallel, Enable, Request, and Report bits are 0, Duration is
* reserved.
*/
wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
/* Measurement Type */
wpabuf_put_u8(buf, MEASURE_TYPE_LOCATION_CIVIC);
/* IEEE P802.11-REVmc/D5.0 9.4.2.21.14:
* Location Civic request */
/* Location Subject */
wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
wpabuf_put_u8(buf, 0); /* Civic Location Type: IETF RFC 4776 */
/* Location Service Interval Units: Seconds */
wpabuf_put_u8(buf, 0);
/* Location Service Interval: 0 - Only one report is requested
*/
wpabuf_put_le16(buf, 0);
/* No optional subelements */
}
wpa_s->rrm.next_neighbor_rep_token++;
if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,

3
wpa_supplicant/wpa_supplicant_i.h
View File

@ -1163,7 +1163,8 @@ void wpas_rrm_reset(struct wpa_supplicant *wpa_s);
void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
const u8 *report, size_t report_len);
int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
const struct wpa_ssid *ssid,
const struct wpa_ssid_value *ssid,
int lci, int civic,
void (*cb)(void *ctx,
struct wpabuf *neighbor_rep),
void *cb_ctx);