+++ /dev/null
-/*
- * Wi-Fi Protected Setup - External Registrar
- * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
- */
-
-#include "includes.h"
-
-#include "common.h"
-#include "base64.h"
-#include "uuid.h"
-#include "eloop.h"
-#include "httpread.h"
-#include "http_client.h"
-#include "http_server.h"
-#include "upnp_xml.h"
-#include "wps_i.h"
-#include "wps_upnp.h"
-#include "wps_upnp_i.h"
-#include "wps_er.h"
-
-
-static void wps_er_deinit_finish(void *eloop_data, void *user_ctx);
-static void wps_er_ap_timeout(void *eloop_data, void *user_ctx);
-static void wps_er_sta_timeout(void *eloop_data, void *user_ctx);
-static void wps_er_ap_process(struct wps_er_ap *ap, struct wpabuf *msg);
-static int wps_er_send_get_device_info(struct wps_er_ap *ap,
- void (*m1_handler)(struct wps_er_ap *ap,
- struct wpabuf *m1));
-
-
-static void wps_er_sta_event(struct wps_context *wps, struct wps_er_sta *sta,
- enum wps_event event)
-{
- union wps_event_data data;
- struct wps_event_er_enrollee *ev = &data.enrollee;
-
- if (wps->event_cb == NULL)
- return;
-
- os_memset(&data, 0, sizeof(data));
- ev->uuid = sta->uuid;
- ev->mac_addr = sta->addr;
- ev->m1_received = sta->m1_received;
- ev->config_methods = sta->config_methods;
- ev->dev_passwd_id = sta->dev_passwd_id;
- ev->pri_dev_type = sta->pri_dev_type;
- ev->dev_name = sta->dev_name;
- ev->manufacturer = sta->manufacturer;
- ev->model_name = sta->model_name;
- ev->model_number = sta->model_number;
- ev->serial_number = sta->serial_number;
- wps->event_cb(wps->cb_ctx, event, &data);
-}
-
-
-static struct wps_er_sta * wps_er_sta_get(struct wps_er_ap *ap, const u8 *addr)
-{
- struct wps_er_sta *sta;
- dl_list_for_each(sta, &ap->sta, struct wps_er_sta, list) {
- if (os_memcmp(sta->addr, addr, ETH_ALEN) == 0)
- return sta;
- }
- return NULL;
-}
-
-
-static void wps_er_sta_free(struct wps_er_sta *sta)
-{
- wps_er_sta_event(sta->ap->er->wps, sta, WPS_EV_ER_ENROLLEE_REMOVE);
- if (sta->wps)
- wps_deinit(sta->wps);
- os_free(sta->manufacturer);
- os_free(sta->model_name);
- os_free(sta->model_number);
- os_free(sta->serial_number);
- os_free(sta->dev_name);
- http_client_free(sta->http);
- eloop_cancel_timeout(wps_er_sta_timeout, sta, NULL);
- os_free(sta->cred);
- os_free(sta);
-}
-
-
-static void wps_er_sta_remove_all(struct wps_er_ap *ap)
-{
- struct wps_er_sta *prev, *sta;
- dl_list_for_each_safe(sta, prev, &ap->sta, struct wps_er_sta, list)
- wps_er_sta_free(sta);
-}
-
-
-static struct wps_er_ap * wps_er_ap_get(struct wps_er *er,
- struct in_addr *addr, const u8 *uuid)
-{
- struct wps_er_ap *ap;
- dl_list_for_each(ap, &er->ap, struct wps_er_ap, list) {
- if ((addr == NULL || ap->addr.s_addr == addr->s_addr) &&
- (uuid == NULL ||
- os_memcmp(uuid, ap->uuid, WPS_UUID_LEN) == 0))
- return ap;
- }
- return NULL;
-}
-
-
-static struct wps_er_ap * wps_er_ap_get_id(struct wps_er *er, unsigned int id)
-{
- struct wps_er_ap *ap;
- dl_list_for_each(ap, &er->ap, struct wps_er_ap, list) {
- if (ap->id == id)
- return ap;
- }
- return NULL;
-}
-
-
-static void wps_er_ap_event(struct wps_context *wps, struct wps_er_ap *ap,
- enum wps_event event)
-{
- union wps_event_data data;
- struct wps_event_er_ap *evap = &data.ap;
-
- if (wps->event_cb == NULL)
- return;
-
- os_memset(&data, 0, sizeof(data));
- evap->uuid = ap->uuid;
- evap->friendly_name = ap->friendly_name;
- evap->manufacturer = ap->manufacturer;
- evap->manufacturer_url = ap->manufacturer_url;
- evap->model_description = ap->model_description;
- evap->model_name = ap->model_name;
- evap->model_number = ap->model_number;
- evap->model_url = ap->model_url;
- evap->serial_number = ap->serial_number;
- evap->upc = ap->upc;
- evap->pri_dev_type = ap->pri_dev_type;
- evap->wps_state = ap->wps_state;
- evap->mac_addr = ap->mac_addr;
- wps->event_cb(wps->cb_ctx, event, &data);
-}
-
-
-static void wps_er_ap_free(struct wps_er_ap *ap)
-{
- http_client_free(ap->http);
- ap->http = NULL;
-
- os_free(ap->location);
- os_free(ap->friendly_name);
- os_free(ap->manufacturer);
- os_free(ap->manufacturer_url);
- os_free(ap->model_description);
- os_free(ap->model_name);
- os_free(ap->model_number);
- os_free(ap->model_url);
- os_free(ap->serial_number);
- os_free(ap->udn);
- os_free(ap->upc);
-
- os_free(ap->scpd_url);
- os_free(ap->control_url);
- os_free(ap->event_sub_url);
-
- os_free(ap->ap_settings);
-
- os_free(ap);
-}
-
-
-static void wps_er_ap_unsubscribed(struct wps_er *er, struct wps_er_ap *ap)
-{
- wpa_printf(MSG_DEBUG, "WPS ER: Unsubscribed from AP %s (%s)",
- inet_ntoa(ap->addr), ap->location);
- dl_list_del(&ap->list);
- wps_er_ap_free(ap);
-
- if (er->deinitializing && dl_list_empty(&er->ap_unsubscribing)) {
- eloop_cancel_timeout(wps_er_deinit_finish, er, NULL);
- wps_er_deinit_finish(er, NULL);
- }
-}
-
-
-static void wps_er_http_unsubscribe_cb(void *ctx, struct http_client *c,
- enum http_client_event event)
-{
- struct wps_er_ap *ap = ctx;
-
- switch (event) {
- case HTTP_CLIENT_OK:
- wpa_printf(MSG_DEBUG, "WPS ER: Unsubscribed from events");
- ap->subscribed = 0;
- break;
- case HTTP_CLIENT_FAILED:
- case HTTP_CLIENT_INVALID_REPLY:
- case HTTP_CLIENT_TIMEOUT:
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to unsubscribe from "
- "events");
- break;
- }
- http_client_free(ap->http);
- ap->http = NULL;
-
- /*
- * Need to get rid of the AP entry regardless of whether we managed to
- * unsubscribe cleanly or not.
- */
- wps_er_ap_unsubscribed(ap->er, ap);
-}
-
-
-static void wps_er_ap_unsubscribe(struct wps_er *er, struct wps_er_ap *ap)
-{
- struct wpabuf *req;
- struct sockaddr_in dst;
- char *url, *path;
- char sid[100];
-
- if (ap->event_sub_url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: No eventSubURL - cannot "
- "subscribe");
- goto fail;
- }
- if (ap->http) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending HTTP request - cannot "
- "send subscribe request");
- goto fail;
- }
-
- url = http_client_url_parse(ap->event_sub_url, &dst, &path);
- if (url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse eventSubURL");
- goto fail;
- }
-
- req = wpabuf_alloc(os_strlen(ap->event_sub_url) + 1000);
- if (req == NULL) {
- os_free(url);
- goto fail;
- }
- uuid_bin2str(ap->sid, sid, sizeof(sid));
- wpabuf_printf(req,
- "UNSUBSCRIBE %s HTTP/1.1\r\n"
- "HOST: %s:%d\r\n"
- "SID: uuid:%s\r\n"
- "\r\n",
- path, inet_ntoa(dst.sin_addr), ntohs(dst.sin_port), sid);
- os_free(url);
- wpa_hexdump_ascii(MSG_MSGDUMP, "WPS ER: Unsubscription request",
- wpabuf_head(req), wpabuf_len(req));
-
- ap->http = http_client_addr(&dst, req, 1000,
- wps_er_http_unsubscribe_cb, ap);
- if (ap->http == NULL) {
- wpabuf_free(req);
- goto fail;
- }
- return;
-
-fail:
- /*
- * Need to get rid of the AP entry even when we fail to unsubscribe
- * cleanly.
- */
- wps_er_ap_unsubscribed(ap->er, ap);
-}
-
-static void wps_er_ap_remove_entry(struct wps_er *er, struct wps_er_ap *ap)
-{
- wpa_printf(MSG_DEBUG, "WPS ER: Removing AP entry for %s (%s)",
- inet_ntoa(ap->addr), ap->location);
- eloop_cancel_timeout(wps_er_ap_timeout, er, ap);
- wps_er_sta_remove_all(ap);
- wps_er_ap_event(er->wps, ap, WPS_EV_ER_AP_REMOVE);
- http_client_free(ap->http);
- ap->http = NULL;
- if (ap->wps) {
- wps_deinit(ap->wps);
- ap->wps = NULL;
- }
-
- dl_list_del(&ap->list);
- if (ap->subscribed) {
- dl_list_add(&er->ap_unsubscribing, &ap->list);
- wps_er_ap_unsubscribe(er, ap);
- } else
- wps_er_ap_free(ap);
-}
-
-
-static void wps_er_ap_timeout(void *eloop_data, void *user_ctx)
-{
- struct wps_er *er = eloop_data;
- struct wps_er_ap *ap = user_ctx;
- wpa_printf(MSG_DEBUG, "WPS ER: AP advertisement timed out");
- wps_er_ap_remove_entry(er, ap);
-}
-
-
-static int wps_er_get_sid(struct wps_er_ap *ap, char *sid)
-{
- char *pos;
- char txt[100];
-
- if (!sid) {
- wpa_printf(MSG_DEBUG, "WPS ER: No SID received from %s (%s)",
- inet_ntoa(ap->addr), ap->location);
- return -1;
- }
-
- pos = os_strstr(sid, "uuid:");
- if (!pos) {
- wpa_printf(MSG_DEBUG, "WPS ER: Invalid SID received from "
- "%s (%s): '%s'", inet_ntoa(ap->addr), ap->location,
- sid);
- return -1;
- }
-
- pos += 5;
- if (uuid_str2bin(pos, ap->sid) < 0) {
- wpa_printf(MSG_DEBUG, "WPS ER: Invalid SID received from "
- "%s (%s): '%s'", inet_ntoa(ap->addr), ap->location,
- sid);
- return -1;
- }
-
- uuid_bin2str(ap->sid, txt, sizeof(txt));
- wpa_printf(MSG_DEBUG, "WPS ER: SID for subscription with %s (%s): %s",
- inet_ntoa(ap->addr), ap->location, txt);
-
- return 0;
-}
-
-
-static void wps_er_http_subscribe_cb(void *ctx, struct http_client *c,
- enum http_client_event event)
-{
- struct wps_er_ap *ap = ctx;
-
- switch (event) {
- case HTTP_CLIENT_OK:
- wpa_printf(MSG_DEBUG, "WPS ER: Subscribed to events");
- ap->subscribed = 1;
- wps_er_get_sid(ap, http_client_get_hdr_line(c, "SID"));
- wps_er_ap_event(ap->er->wps, ap, WPS_EV_ER_AP_ADD);
- break;
- case HTTP_CLIENT_FAILED:
- case HTTP_CLIENT_INVALID_REPLY:
- case HTTP_CLIENT_TIMEOUT:
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to subscribe to events");
- break;
- }
- http_client_free(ap->http);
- ap->http = NULL;
-}
-
-
-static void wps_er_subscribe(struct wps_er_ap *ap)
-{
- struct wpabuf *req;
- struct sockaddr_in dst;
- char *url, *path;
-
- if (ap->event_sub_url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: No eventSubURL - cannot "
- "subscribe");
- return;
- }
- if (ap->http) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending HTTP request - cannot "
- "send subscribe request");
- return;
- }
-
- url = http_client_url_parse(ap->event_sub_url, &dst, &path);
- if (url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse eventSubURL");
- return;
- }
-
- req = wpabuf_alloc(os_strlen(ap->event_sub_url) + 1000);
- if (req == NULL) {
- os_free(url);
- return;
- }
- wpabuf_printf(req,
- "SUBSCRIBE %s HTTP/1.1\r\n"
- "HOST: %s:%d\r\n"
- "CALLBACK: <http://%s:%d/event/%u/%u>\r\n"
- "NT: upnp:event\r\n"
- "TIMEOUT: Second-%d\r\n"
- "\r\n",
- path, inet_ntoa(dst.sin_addr), ntohs(dst.sin_port),
- ap->er->ip_addr_text, ap->er->http_port,
- ap->er->event_id, ap->id, 1800);
- os_free(url);
- wpa_hexdump_ascii(MSG_MSGDUMP, "WPS ER: Subscription request",
- wpabuf_head(req), wpabuf_len(req));
-
- ap->http = http_client_addr(&dst, req, 1000, wps_er_http_subscribe_cb,
- ap);
- if (ap->http == NULL)
- wpabuf_free(req);
-}
-
-
-static void wps_er_ap_get_m1(struct wps_er_ap *ap, struct wpabuf *m1)
-{
- struct wps_parse_attr attr;
-
- if (wps_parse_msg(m1, &attr) < 0) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse M1");
- return;
- }
- if (attr.primary_dev_type)
- os_memcpy(ap->pri_dev_type, attr.primary_dev_type, 8);
- if (attr.wps_state)
- ap->wps_state = *attr.wps_state;
- if (attr.mac_addr)
- os_memcpy(ap->mac_addr, attr.mac_addr, ETH_ALEN);
-
- wps_er_subscribe(ap);
-}
-
-
-static void wps_er_get_device_info(struct wps_er_ap *ap)
-{
- wps_er_send_get_device_info(ap, wps_er_ap_get_m1);
-}
-
-
-static void wps_er_parse_device_description(struct wps_er_ap *ap,
- struct wpabuf *reply)
-{
- /* Note: reply includes null termination after the buffer data */
- const char *data = wpabuf_head(reply);
- char *pos;
-
- wpa_hexdump_ascii(MSG_MSGDUMP, "WPS ER: Device info",
- wpabuf_head(reply), wpabuf_len(reply));
-
- ap->friendly_name = xml_get_first_item(data, "friendlyName");
- wpa_printf(MSG_DEBUG, "WPS ER: friendlyName='%s'", ap->friendly_name);
-
- ap->manufacturer = xml_get_first_item(data, "manufacturer");
- wpa_printf(MSG_DEBUG, "WPS ER: manufacturer='%s'", ap->manufacturer);
-
- ap->manufacturer_url = xml_get_first_item(data, "manufacturerURL");
- wpa_printf(MSG_DEBUG, "WPS ER: manufacturerURL='%s'",
- ap->manufacturer_url);
-
- ap->model_description = xml_get_first_item(data, "modelDescription");
- wpa_printf(MSG_DEBUG, "WPS ER: modelDescription='%s'",
- ap->model_description);
-
- ap->model_name = xml_get_first_item(data, "modelName");
- wpa_printf(MSG_DEBUG, "WPS ER: modelName='%s'", ap->model_name);
-
- ap->model_number = xml_get_first_item(data, "modelNumber");
- wpa_printf(MSG_DEBUG, "WPS ER: modelNumber='%s'", ap->model_number);
-
- ap->model_url = xml_get_first_item(data, "modelURL");
- wpa_printf(MSG_DEBUG, "WPS ER: modelURL='%s'", ap->model_url);
-
- ap->serial_number = xml_get_first_item(data, "serialNumber");
- wpa_printf(MSG_DEBUG, "WPS ER: serialNumber='%s'", ap->serial_number);
-
- ap->udn = xml_get_first_item(data, "UDN");
- wpa_printf(MSG_DEBUG, "WPS ER: UDN='%s'", ap->udn);
- pos = os_strstr(ap->udn, "uuid:");
- if (pos) {
- pos += 5;
- if (uuid_str2bin(pos, ap->uuid) < 0)
- wpa_printf(MSG_DEBUG, "WPS ER: Invalid UUID in UDN");
- }
-
- ap->upc = xml_get_first_item(data, "UPC");
- wpa_printf(MSG_DEBUG, "WPS ER: UPC='%s'", ap->upc);
-
- ap->scpd_url = http_link_update(
- xml_get_first_item(data, "SCPDURL"), ap->location);
- wpa_printf(MSG_DEBUG, "WPS ER: SCPDURL='%s'", ap->scpd_url);
-
- ap->control_url = http_link_update(
- xml_get_first_item(data, "controlURL"), ap->location);
- wpa_printf(MSG_DEBUG, "WPS ER: controlURL='%s'", ap->control_url);
-
- ap->event_sub_url = http_link_update(
- xml_get_first_item(data, "eventSubURL"), ap->location);
- wpa_printf(MSG_DEBUG, "WPS ER: eventSubURL='%s'", ap->event_sub_url);
-}
-
-
-static void wps_er_http_dev_desc_cb(void *ctx, struct http_client *c,
- enum http_client_event event)
-{
- struct wps_er_ap *ap = ctx;
- struct wpabuf *reply;
- int ok = 0;
-
- switch (event) {
- case HTTP_CLIENT_OK:
- reply = http_client_get_body(c);
- if (reply == NULL)
- break;
- wps_er_parse_device_description(ap, reply);
- ok = 1;
- break;
- case HTTP_CLIENT_FAILED:
- case HTTP_CLIENT_INVALID_REPLY:
- case HTTP_CLIENT_TIMEOUT:
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to fetch device info");
- break;
- }
- http_client_free(ap->http);
- ap->http = NULL;
- if (ok)
- wps_er_get_device_info(ap);
-}
-
-
-void wps_er_ap_add(struct wps_er *er, const u8 *uuid, struct in_addr *addr,
- const char *location, int max_age)
-{
- struct wps_er_ap *ap;
-
- ap = wps_er_ap_get(er, addr, uuid);
- if (ap) {
- /* Update advertisement timeout */
- eloop_cancel_timeout(wps_er_ap_timeout, er, ap);
- eloop_register_timeout(max_age, 0, wps_er_ap_timeout, er, ap);
- return;
- }
-
- ap = os_zalloc(sizeof(*ap));
- if (ap == NULL)
- return;
- dl_list_init(&ap->sta);
- ap->er = er;
- ap->id = ++er->next_ap_id;
- ap->location = os_strdup(location);
- if (ap->location == NULL) {
- os_free(ap);
- return;
- }
- dl_list_add(&er->ap, &ap->list);
-
- ap->addr.s_addr = addr->s_addr;
- os_memcpy(ap->uuid, uuid, WPS_UUID_LEN);
- eloop_register_timeout(max_age, 0, wps_er_ap_timeout, er, ap);
-
- wpa_printf(MSG_DEBUG, "WPS ER: Added AP entry for %s (%s)",
- inet_ntoa(ap->addr), ap->location);
-
- /* Fetch device description */
- ap->http = http_client_url(ap->location, NULL, 10000,
- wps_er_http_dev_desc_cb, ap);
-}
-
-
-void wps_er_ap_remove(struct wps_er *er, struct in_addr *addr)
-{
- struct wps_er_ap *ap;
- dl_list_for_each(ap, &er->ap, struct wps_er_ap, list) {
- if (ap->addr.s_addr == addr->s_addr) {
- wps_er_ap_remove_entry(er, ap);
- return;
- }
- }
-}
-
-
-static void wps_er_ap_remove_all(struct wps_er *er)
-{
- struct wps_er_ap *prev, *ap;
- dl_list_for_each_safe(ap, prev, &er->ap, struct wps_er_ap, list)
- wps_er_ap_remove_entry(er, ap);
-}
-
-
-static void http_put_date(struct wpabuf *buf)
-{
- wpabuf_put_str(buf, "Date: ");
- format_date(buf);
- wpabuf_put_str(buf, "\r\n");
-}
-
-
-static void wps_er_http_resp_not_found(struct http_request *req)
-{
- struct wpabuf *buf;
- buf = wpabuf_alloc(200);
- if (buf == NULL) {
- http_request_deinit(req);
- return;
- }
-
- wpabuf_put_str(buf,
- "HTTP/1.1 404 Not Found\r\n"
- "Server: unspecified, UPnP/1.0, unspecified\r\n"
- "Connection: close\r\n");
- http_put_date(buf);
- wpabuf_put_str(buf, "\r\n");
- http_request_send_and_deinit(req, buf);
-}
-
-
-static void wps_er_http_resp_ok(struct http_request *req)
-{
- struct wpabuf *buf;
- buf = wpabuf_alloc(200);
- if (buf == NULL) {
- http_request_deinit(req);
- return;
- }
-
- wpabuf_put_str(buf,
- "HTTP/1.1 200 OK\r\n"
- "Server: unspecified, UPnP/1.0, unspecified\r\n"
- "Connection: close\r\n"
- "Content-Length: 0\r\n");
- http_put_date(buf);
- wpabuf_put_str(buf, "\r\n");
- http_request_send_and_deinit(req, buf);
-}
-
-
-static void wps_er_sta_timeout(void *eloop_data, void *user_ctx)
-{
- struct wps_er_sta *sta = eloop_data;
- wpa_printf(MSG_DEBUG, "WPS ER: STA entry timed out");
- dl_list_del(&sta->list);
- wps_er_sta_free(sta);
-}
-
-
-static struct wps_er_sta * wps_er_add_sta_data(struct wps_er_ap *ap,
- const u8 *addr,
- struct wps_parse_attr *attr,
- int probe_req)
-{
- struct wps_er_sta *sta = wps_er_sta_get(ap, addr);
- int new_sta = 0;
- int m1;
-
- m1 = !probe_req && attr->msg_type && *attr->msg_type == WPS_M1;
-
- if (sta == NULL) {
- /*
- * Only allow new STA entry to be added based on Probe Request
- * or M1. This will filter out bogus events and anything that
- * may have been ongoing at the time ER subscribed for events.
- */
- if (!probe_req && !m1)
- return NULL;
-
- sta = os_zalloc(sizeof(*sta));
- if (sta == NULL)
- return NULL;
- os_memcpy(sta->addr, addr, ETH_ALEN);
- sta->ap = ap;
- dl_list_add(&ap->sta, &sta->list);
- new_sta = 1;
- }
-
- if (m1)
- sta->m1_received = 1;
-
- if (attr->config_methods && (!probe_req || !sta->m1_received))
- sta->config_methods = WPA_GET_BE16(attr->config_methods);
- if (attr->uuid_e && (!probe_req || !sta->m1_received))
- os_memcpy(sta->uuid, attr->uuid_e, WPS_UUID_LEN);
- if (attr->primary_dev_type && (!probe_req || !sta->m1_received))
- os_memcpy(sta->pri_dev_type, attr->primary_dev_type, 8);
- if (attr->dev_password_id && (!probe_req || !sta->m1_received))
- sta->dev_passwd_id = WPA_GET_BE16(attr->dev_password_id);
-
- if (attr->manufacturer) {
- os_free(sta->manufacturer);
- sta->manufacturer = os_malloc(attr->manufacturer_len + 1);
- if (sta->manufacturer) {
- os_memcpy(sta->manufacturer, attr->manufacturer,
- attr->manufacturer_len);
- sta->manufacturer[attr->manufacturer_len] = '\0';
- }
- }
-
- if (attr->model_name) {
- os_free(sta->model_name);
- sta->model_name = os_malloc(attr->model_name_len + 1);
- if (sta->model_name) {
- os_memcpy(sta->model_name, attr->model_name,
- attr->model_name_len);
- sta->model_name[attr->model_name_len] = '\0';
- }
- }
-
- if (attr->model_number) {
- os_free(sta->model_number);
- sta->model_number = os_malloc(attr->model_number_len + 1);
- if (sta->model_number) {
- os_memcpy(sta->model_number, attr->model_number,
- attr->model_number_len);
- sta->model_number[attr->model_number_len] = '\0';
- }
- }
-
- if (attr->serial_number) {
- os_free(sta->serial_number);
- sta->serial_number = os_malloc(attr->serial_number_len + 1);
- if (sta->serial_number) {
- os_memcpy(sta->serial_number, attr->serial_number,
- attr->serial_number_len);
- sta->serial_number[attr->serial_number_len] = '\0';
- }
- }
-
- if (attr->dev_name) {
- os_free(sta->dev_name);
- sta->dev_name = os_malloc(attr->dev_name_len + 1);
- if (sta->dev_name) {
- os_memcpy(sta->dev_name, attr->dev_name,
- attr->dev_name_len);
- sta->dev_name[attr->dev_name_len] = '\0';
- }
- }
-
- eloop_cancel_timeout(wps_er_sta_timeout, sta, NULL);
- eloop_register_timeout(300, 0, wps_er_sta_timeout, sta, NULL);
-
- if (m1 || new_sta)
- wps_er_sta_event(ap->er->wps, sta, WPS_EV_ER_ENROLLEE_ADD);
-
- return sta;
-}
-
-
-static void wps_er_process_wlanevent_probe_req(struct wps_er_ap *ap,
- const u8 *addr,
- struct wpabuf *msg)
-{
- struct wps_parse_attr attr;
-
- wpa_printf(MSG_DEBUG, "WPS ER: WLANEvent - Probe Request - from "
- MACSTR, MAC2STR(addr));
- wpa_hexdump_buf(MSG_MSGDUMP, "WPS ER: WLANEvent - Enrollee's message "
- "(TLVs from Probe Request)", msg);
-
- if (wps_parse_msg(msg, &attr) < 0) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse TLVs in "
- "WLANEvent message");
- return;
- }
-
- wps_er_add_sta_data(ap, addr, &attr, 1);
- wps_registrar_probe_req_rx(ap->er->wps->registrar, addr, msg, 0);
-}
-
-
-static void wps_er_http_put_wlan_response_cb(void *ctx, struct http_client *c,
- enum http_client_event event)
-{
- struct wps_er_sta *sta = ctx;
-
- switch (event) {
- case HTTP_CLIENT_OK:
- wpa_printf(MSG_DEBUG, "WPS ER: PutWLANResponse OK");
- break;
- case HTTP_CLIENT_FAILED:
- case HTTP_CLIENT_INVALID_REPLY:
- case HTTP_CLIENT_TIMEOUT:
- wpa_printf(MSG_DEBUG, "WPS ER: PutWLANResponse failed");
- break;
- }
- http_client_free(sta->http);
- sta->http = NULL;
-}
-
-
-static const char *soap_prefix =
- "<?xml version=\"1.0\"?>\n"
- "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" "
- "s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n"
- "<s:Body>\n";
-static const char *soap_postfix =
- "</s:Body>\n</s:Envelope>\n";
-static const char *urn_wfawlanconfig =
- "urn:schemas-wifialliance-org:service:WFAWLANConfig:1";
-
-static struct wpabuf * wps_er_soap_hdr(const struct wpabuf *msg,
- const char *name, const char *arg_name,
- const char *path,
- const struct sockaddr_in *dst,
- char **len_ptr, char **body_ptr)
-{
- unsigned char *encoded;
- size_t encoded_len;
- struct wpabuf *buf;
-
- if (msg) {
- encoded = base64_encode(wpabuf_head(msg), wpabuf_len(msg),
- &encoded_len);
- if (encoded == NULL)
- return NULL;
- } else {
- encoded = NULL;
- encoded_len = 0;
- }
-
- buf = wpabuf_alloc(1000 + encoded_len);
- if (buf == NULL) {
- os_free(encoded);
- return NULL;
- }
-
- wpabuf_printf(buf,
- "POST %s HTTP/1.1\r\n"
- "Host: %s:%d\r\n"
- "Content-Type: text/xml; charset=\"utf-8\"\r\n"
- "Content-Length: ",
- path, inet_ntoa(dst->sin_addr), ntohs(dst->sin_port));
-
- *len_ptr = wpabuf_put(buf, 0);
- wpabuf_printf(buf,
- " \r\n"
- "SOAPACTION: \"%s#%s\"\r\n"
- "\r\n",
- urn_wfawlanconfig, name);
-
- *body_ptr = wpabuf_put(buf, 0);
-
- wpabuf_put_str(buf, soap_prefix);
- wpabuf_printf(buf, "<u:%s xmlns:u=\"", name);
- wpabuf_put_str(buf, urn_wfawlanconfig);
- wpabuf_put_str(buf, "\">\n");
- if (encoded) {
- wpabuf_printf(buf, "<%s>%s</%s>\n",
- arg_name, (char *) encoded, arg_name);
- os_free(encoded);
- }
-
- return buf;
-}
-
-
-static void wps_er_soap_end(struct wpabuf *buf, const char *name,
- char *len_ptr, char *body_ptr)
-{
- char len_buf[10];
- wpabuf_printf(buf, "</u:%s>\n", name);
- wpabuf_put_str(buf, soap_postfix);
- os_snprintf(len_buf, sizeof(len_buf), "%d",
- (int) ((char *) wpabuf_put(buf, 0) - body_ptr));
- os_memcpy(len_ptr, len_buf, os_strlen(len_buf));
-}
-
-
-static void wps_er_sta_send_msg(struct wps_er_sta *sta, struct wpabuf *msg)
-{
- struct wpabuf *buf;
- char *len_ptr, *body_ptr;
- struct sockaddr_in dst;
- char *url, *path;
-
- if (sta->http) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending HTTP request for STA - "
- "ignore new request");
- wpabuf_free(msg);
- return;
- }
-
- if (sta->ap->control_url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: No controlURL for AP");
- wpabuf_free(msg);
- return;
- }
-
- url = http_client_url_parse(sta->ap->control_url, &dst, &path);
- if (url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse controlURL");
- wpabuf_free(msg);
- return;
- }
-
- buf = wps_er_soap_hdr(msg, "PutWLANResponse", "NewMessage", path, &dst,
- &len_ptr, &body_ptr);
- wpabuf_free(msg);
- os_free(url);
- if (buf == NULL)
- return;
- wpabuf_printf(buf, "<NewWLANEventType>%d</NewWLANEventType>\n",
- UPNP_WPS_WLANEVENT_TYPE_EAP);
- wpabuf_printf(buf, "<NewWLANEventMAC>" MACSTR "</NewWLANEventMAC>\n",
- MAC2STR(sta->addr));
-
- wps_er_soap_end(buf, "PutWLANResponse", len_ptr, body_ptr);
-
- sta->http = http_client_addr(&dst, buf, 1000,
- wps_er_http_put_wlan_response_cb, sta);
- if (sta->http == NULL)
- wpabuf_free(buf);
-}
-
-
-static void wps_er_sta_process(struct wps_er_sta *sta, struct wpabuf *msg,
- enum wsc_op_code op_code)
-{
- enum wps_process_res res;
-
- res = wps_process_msg(sta->wps, op_code, msg);
- if (res == WPS_CONTINUE) {
- struct wpabuf *next = wps_get_msg(sta->wps, &op_code);
- if (next)
- wps_er_sta_send_msg(sta, next);
- } else {
- wpa_printf(MSG_DEBUG, "WPS ER: Protocol run %s with the "
- "enrollee (res=%d)",
- res == WPS_DONE ? "succeeded" : "failed", res);
- wps_deinit(sta->wps);
- sta->wps = NULL;
- if (res == WPS_DONE) {
- /* Remove the STA entry after short timeout */
- eloop_cancel_timeout(wps_er_sta_timeout, sta, NULL);
- eloop_register_timeout(10, 0, wps_er_sta_timeout, sta,
- NULL);
- }
- }
-}
-
-
-static void wps_er_sta_start(struct wps_er_sta *sta, struct wpabuf *msg)
-{
- struct wps_config cfg;
-
- if (sta->wps)
- wps_deinit(sta->wps);
-
- os_memset(&cfg, 0, sizeof(cfg));
- cfg.wps = sta->ap->er->wps;
- cfg.registrar = 1;
- cfg.peer_addr = sta->addr;
-
- sta->wps = wps_init(&cfg);
- if (sta->wps == NULL)
- return;
- sta->wps->er = 1;
- sta->wps->use_cred = sta->ap->ap_settings;
- if (sta->ap->ap_settings) {
- os_free(sta->cred);
- sta->cred = os_malloc(sizeof(*sta->cred));
- if (sta->cred) {
- os_memcpy(sta->cred, sta->ap->ap_settings,
- sizeof(*sta->cred));
- sta->cred->cred_attr = NULL;
- os_memcpy(sta->cred->mac_addr, sta->addr, ETH_ALEN);
- sta->wps->use_cred = sta->cred;
- }
- }
-
- wps_er_sta_process(sta, msg, WSC_MSG);
-}
-
-
-static void wps_er_process_wlanevent_eap(struct wps_er_ap *ap, const u8 *addr,
- struct wpabuf *msg)
-{
- struct wps_parse_attr attr;
- struct wps_er_sta *sta;
-
- wpa_printf(MSG_DEBUG, "WPS ER: WLANEvent - EAP - from " MACSTR,
- MAC2STR(addr));
- wpa_hexdump_buf(MSG_MSGDUMP, "WPS ER: WLANEvent - Enrollee's message "
- "(TLVs from EAP-WSC)", msg);
-
- if (wps_parse_msg(msg, &attr) < 0) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse TLVs in "
- "WLANEvent message");
- return;
- }
-
- sta = wps_er_add_sta_data(ap, addr, &attr, 0);
- if (sta == NULL)
- return;
-
- if (attr.msg_type && *attr.msg_type == WPS_M1)
- wps_er_sta_start(sta, msg);
- else if (sta->wps) {
- enum wsc_op_code op_code = WSC_MSG;
- if (attr.msg_type) {
- switch (*attr.msg_type) {
- case WPS_WSC_ACK:
- op_code = WSC_ACK;
- break;
- case WPS_WSC_NACK:
- op_code = WSC_NACK;
- break;
- case WPS_WSC_DONE:
- op_code = WSC_Done;
- break;
- }
- }
- wps_er_sta_process(sta, msg, op_code);
- }
-}
-
-
-static void wps_er_process_wlanevent(struct wps_er_ap *ap,
- struct wpabuf *event)
-{
- u8 *data;
- u8 wlan_event_type;
- u8 wlan_event_mac[ETH_ALEN];
- struct wpabuf msg;
-
- wpa_hexdump(MSG_MSGDUMP, "WPS ER: Received WLANEvent",
- wpabuf_head(event), wpabuf_len(event));
- if (wpabuf_len(event) < 1 + 17) {
- wpa_printf(MSG_DEBUG, "WPS ER: Too short WLANEvent");
- return;
- }
-
- data = wpabuf_mhead(event);
- wlan_event_type = data[0];
- if (hwaddr_aton((char *) data + 1, wlan_event_mac) < 0) {
- wpa_printf(MSG_DEBUG, "WPS ER: Invalid WLANEventMAC in "
- "WLANEvent");
- return;
- }
-
- wpabuf_set(&msg, data + 1 + 17, wpabuf_len(event) - (1 + 17));
-
- switch (wlan_event_type) {
- case 1:
- wps_er_process_wlanevent_probe_req(ap, wlan_event_mac, &msg);
- break;
- case 2:
- wps_er_process_wlanevent_eap(ap, wlan_event_mac, &msg);
- break;
- default:
- wpa_printf(MSG_DEBUG, "WPS ER: Unknown WLANEventType %d",
- wlan_event_type);
- break;
- }
-}
-
-
-static void wps_er_http_event(struct wps_er *er, struct http_request *req,
- unsigned int ap_id)
-{
- struct wps_er_ap *ap = wps_er_ap_get_id(er, ap_id);
- struct wpabuf *event;
- enum http_reply_code ret;
-
- if (ap == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: HTTP event from unknown AP id "
- "%u", ap_id);
- wps_er_http_resp_not_found(req);
- return;
- }
- wpa_printf(MSG_MSGDUMP, "WPS ER: HTTP event from AP id %u: %s",
- ap_id, http_request_get_data(req));
-
- event = xml_get_base64_item(http_request_get_data(req), "WLANEvent",
- &ret);
- if (event == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Could not extract WLANEvent "
- "from the event notification");
- /*
- * Reply with OK anyway to avoid getting unregistered from
- * events.
- */
- wps_er_http_resp_ok(req);
- return;
- }
-
- wps_er_process_wlanevent(ap, event);
-
- wpabuf_free(event);
- wps_er_http_resp_ok(req);
-}
-
-
-static void wps_er_http_notify(struct wps_er *er, struct http_request *req)
-{
- char *uri = http_request_get_uri(req);
-
- if (os_strncmp(uri, "/event/", 7) == 0) {
- unsigned int event_id;
- char *pos;
- event_id = atoi(uri + 7);
- if (event_id != er->event_id) {
- wpa_printf(MSG_DEBUG, "WPS ER: HTTP event for an "
- "unknown event id %u", event_id);
- return;
- }
- pos = os_strchr(uri + 7, '/');
- if (pos == NULL)
- return;
- pos++;
- wps_er_http_event(er, req, atoi(pos));
- } else {
- wpa_printf(MSG_DEBUG, "WPS ER: Unknown HTTP NOTIFY for '%s'",
- uri);
- wps_er_http_resp_not_found(req);
- }
-}
-
-
-static void wps_er_http_req(void *ctx, struct http_request *req)
-{
- struct wps_er *er = ctx;
- struct sockaddr_in *cli = http_request_get_cli_addr(req);
- enum httpread_hdr_type type = http_request_get_type(req);
- struct wpabuf *buf;
-
- wpa_printf(MSG_DEBUG, "WPS ER: HTTP request: '%s' (type %d) from "
- "%s:%d",
- http_request_get_uri(req), type,
- inet_ntoa(cli->sin_addr), ntohs(cli->sin_port));
-
- switch (type) {
- case HTTPREAD_HDR_TYPE_NOTIFY:
- wps_er_http_notify(er, req);
- break;
- default:
- wpa_printf(MSG_DEBUG, "WPS ER: Unsupported HTTP request type "
- "%d", type);
- buf = wpabuf_alloc(200);
- if (buf == NULL) {
- http_request_deinit(req);
- return;
- }
- wpabuf_put_str(buf,
- "HTTP/1.1 501 Unimplemented\r\n"
- "Connection: close\r\n");
- http_put_date(buf);
- wpabuf_put_str(buf, "\r\n");
- http_request_send_and_deinit(req, buf);
- break;
- }
-}
-
-
-struct wps_er *
-wps_er_init(struct wps_context *wps, const char *ifname, const char *filter)
-{
- struct wps_er *er;
- struct in_addr addr;
-
- er = os_zalloc(sizeof(*er));
- if (er == NULL)
- return NULL;
- dl_list_init(&er->ap);
- dl_list_init(&er->ap_unsubscribing);
-
- er->multicast_sd = -1;
- er->ssdp_sd = -1;
-
- os_strlcpy(er->ifname, ifname, sizeof(er->ifname));
- er->wps = wps;
- if (os_get_random((unsigned char *) &er->event_id,
- sizeof(er->event_id)) < 0) {
- wps_er_deinit(er, NULL, NULL);
- return NULL;
- }
- /* Limit event_id to < 32 bits to avoid issues with atoi() */
- er->event_id &= 0x0fffffff;
-
- if (filter) {
- if (inet_aton(filter, &er->filter_addr) == 0) {
- wpa_printf(MSG_INFO, "WPS UPnP: Invalid filter "
- "address %s", filter);
- wps_er_deinit(er, NULL, NULL);
- return NULL;
- }
- wpa_printf(MSG_DEBUG, "WPS UPnP: Only accepting connections "
- "with %s", filter);
- }
- if (get_netif_info(ifname, &er->ip_addr, &er->ip_addr_text,
- er->mac_addr)) {
- wpa_printf(MSG_INFO, "WPS UPnP: Could not get IP/MAC address "
- "for %s. Does it have IP address?", ifname);
- wps_er_deinit(er, NULL, NULL);
- return NULL;
- }
-
- if (wps_er_ssdp_init(er) < 0) {
- wpa_printf(MSG_INFO, "WPS UPnP: SSDP initialization failed");
- wps_er_deinit(er, NULL, NULL);
- return NULL;
- }
-
- addr.s_addr = er->ip_addr;
- er->http_srv = http_server_init(&addr, -1, wps_er_http_req, er);
- if (er->http_srv == NULL) {
- wpa_printf(MSG_INFO, "WPS UPnP: HTTP initialization failed");
- wps_er_deinit(er, NULL, NULL);
- return NULL;
- }
- er->http_port = http_server_get_port(er->http_srv);
-
- wpa_printf(MSG_DEBUG, "WPS ER: Start (ifname=%s ip_addr=%s)",
- er->ifname, er->ip_addr_text);
-
- return er;
-}
-
-
-void wps_er_refresh(struct wps_er *er)
-{
- struct wps_er_ap *ap;
- struct wps_er_sta *sta;
-
- dl_list_for_each(ap, &er->ap, struct wps_er_ap, list) {
- wps_er_ap_event(er->wps, ap, WPS_EV_ER_AP_ADD);
- dl_list_for_each(sta, &ap->sta, struct wps_er_sta, list)
- wps_er_sta_event(er->wps, sta, WPS_EV_ER_ENROLLEE_ADD);
- }
-
- wps_er_send_ssdp_msearch(er);
-}
-
-
-static void wps_er_deinit_finish(void *eloop_data, void *user_ctx)
-{
- struct wps_er *er = eloop_data;
- void (*deinit_done_cb)(void *ctx);
- void *deinit_done_ctx;
-
- wpa_printf(MSG_DEBUG, "WPS ER: Finishing deinit");
-
- deinit_done_cb = er->deinit_done_cb;
- deinit_done_ctx = er->deinit_done_ctx;
- os_free(er->ip_addr_text);
- os_free(er);
-
- if (deinit_done_cb)
- deinit_done_cb(deinit_done_ctx);
-}
-
-
-void wps_er_deinit(struct wps_er *er, void (*cb)(void *ctx), void *ctx)
-{
- if (er == NULL)
- return;
- http_server_deinit(er->http_srv);
- wps_er_ap_remove_all(er);
- wps_er_ssdp_deinit(er);
- eloop_register_timeout(dl_list_empty(&er->ap_unsubscribing) ? 0 : 5, 0,
- wps_er_deinit_finish, er, NULL);
- wpa_printf(MSG_DEBUG, "WPS ER: Finish deinit from timeout");
- er->deinitializing = 1;
- er->deinit_done_cb = cb;
- er->deinit_done_ctx = ctx;
-}
-
-
-static void wps_er_http_set_sel_reg_cb(void *ctx, struct http_client *c,
- enum http_client_event event)
-{
- struct wps_er_ap *ap = ctx;
-
- switch (event) {
- case HTTP_CLIENT_OK:
- wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar OK");
- break;
- case HTTP_CLIENT_FAILED:
- case HTTP_CLIENT_INVALID_REPLY:
- case HTTP_CLIENT_TIMEOUT:
- wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar failed");
- break;
- }
- http_client_free(ap->http);
- ap->http = NULL;
-}
-
-
-static void wps_er_send_set_sel_reg(struct wps_er_ap *ap, struct wpabuf *msg)
-{
- struct wpabuf *buf;
- char *len_ptr, *body_ptr;
- struct sockaddr_in dst;
- char *url, *path;
-
- if (ap->control_url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: No controlURL for AP");
- return;
- }
-
- if (ap->http) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending HTTP request for AP - "
- "ignore new request");
- return;
- }
-
- if (ap->wps) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending WPS operation for AP - "
- "skip SetSelectedRegistrar");
- return;
- }
-
- url = http_client_url_parse(ap->control_url, &dst, &path);
- if (url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse controlURL");
- return;
- }
-
- buf = wps_er_soap_hdr(msg, "SetSelectedRegistrar", "NewMessage", path,
- &dst, &len_ptr, &body_ptr);
- os_free(url);
- if (buf == NULL)
- return;
-
- wps_er_soap_end(buf, "SetSelectedRegistrar", len_ptr, body_ptr);
-
- ap->http = http_client_addr(&dst, buf, 1000,
- wps_er_http_set_sel_reg_cb, ap);
- if (ap->http == NULL)
- wpabuf_free(buf);
-}
-
-
-static int wps_er_build_selected_registrar(struct wpabuf *msg, int sel_reg)
-{
- wpabuf_put_be16(msg, ATTR_SELECTED_REGISTRAR);
- wpabuf_put_be16(msg, 1);
- wpabuf_put_u8(msg, !!sel_reg);
- return 0;
-}
-
-
-static int wps_er_build_dev_password_id(struct wpabuf *msg, u16 dev_passwd_id)
-{
- wpabuf_put_be16(msg, ATTR_DEV_PASSWORD_ID);
- wpabuf_put_be16(msg, 2);
- wpabuf_put_be16(msg, dev_passwd_id);
- return 0;
-}
-
-
-static int wps_er_build_sel_reg_config_methods(struct wpabuf *msg,
- u16 sel_reg_config_methods)
-{
- wpabuf_put_be16(msg, ATTR_SELECTED_REGISTRAR_CONFIG_METHODS);
- wpabuf_put_be16(msg, 2);
- wpabuf_put_be16(msg, sel_reg_config_methods);
- return 0;
-}
-
-
-static int wps_er_build_uuid_r(struct wpabuf *msg, const u8 *uuid_r)
-{
-#ifdef CONFIG_WPS2
- wpabuf_put_be16(msg, ATTR_UUID_R);
- wpabuf_put_be16(msg, WPS_UUID_LEN);
- wpabuf_put_data(msg, uuid_r, WPS_UUID_LEN);
-#endif /* CONFIG_WPS2 */
- return 0;
-}
-
-
-void wps_er_set_sel_reg(struct wps_er *er, int sel_reg, u16 dev_passwd_id,
- u16 sel_reg_config_methods)
-{
- struct wpabuf *msg;
- struct wps_er_ap *ap;
- struct wps_registrar *reg = er->wps->registrar;
- const u8 *auth_macs;
- size_t count;
-
- if (er->skip_set_sel_reg) {
- wpa_printf(MSG_DEBUG, "WPS ER: Skip SetSelectedRegistrar");
- return;
- }
-
- msg = wpabuf_alloc(500);
- if (msg == NULL)
- return;
-
- auth_macs = wps_authorized_macs(reg, &count);
-
- if (wps_build_version(msg) ||
- wps_er_build_selected_registrar(msg, sel_reg) ||
- wps_er_build_dev_password_id(msg, dev_passwd_id) ||
- wps_er_build_sel_reg_config_methods(msg, sel_reg_config_methods) ||
- wps_build_wfa_ext(msg, 0, auth_macs, count) ||
- wps_er_build_uuid_r(msg, er->wps->uuid)) {
- wpabuf_free(msg);
- return;
- }
-
- dl_list_for_each(ap, &er->ap, struct wps_er_ap, list)
- wps_er_send_set_sel_reg(ap, msg);
-
- wpabuf_free(msg);
-}
-
-
-int wps_er_pbc(struct wps_er *er, const u8 *uuid)
-{
- if (er == NULL || er->wps == NULL)
- return -1;
-
- if (wps_registrar_pbc_overlap(er->wps->registrar, NULL, NULL)) {
- wpa_printf(MSG_DEBUG, "WPS ER: PBC overlap - do not start PBC "
- "mode");
- return -1;
- }
-
- /*
- * TODO: Should enable PBC mode only in a single AP based on which AP
- * the Enrollee (uuid) is using. Now, we may end up enabling multiple
- * APs in PBC mode which could result in session overlap at the
- * Enrollee.
- */
- if (wps_registrar_button_pushed(er->wps->registrar))
- return -1;
-
- return 0;
-}
-
-
-static void wps_er_ap_settings_cb(void *ctx, const struct wps_credential *cred)
-{
- struct wps_er_ap *ap = ctx;
- union wps_event_data data;
-
- wpa_printf(MSG_DEBUG, "WPS ER: AP Settings received");
- os_free(ap->ap_settings);
- ap->ap_settings = os_malloc(sizeof(*cred));
- if (ap->ap_settings) {
- os_memcpy(ap->ap_settings, cred, sizeof(*cred));
- ap->ap_settings->cred_attr = NULL;
- }
-
- os_memset(&data, 0, sizeof(data));
- data.ap_settings.uuid = ap->uuid;
- data.ap_settings.cred = cred;
- ap->er->wps->event_cb(ap->er->wps->cb_ctx, WPS_EV_ER_AP_SETTINGS,
- &data);
-}
-
-
-static void wps_er_http_put_message_cb(void *ctx, struct http_client *c,
- enum http_client_event event)
-{
- struct wps_er_ap *ap = ctx;
- struct wpabuf *reply;
- char *msg = NULL;
-
- switch (event) {
- case HTTP_CLIENT_OK:
- wpa_printf(MSG_DEBUG, "WPS ER: PutMessage OK");
- reply = http_client_get_body(c);
- if (reply == NULL)
- break;
- msg = os_zalloc(wpabuf_len(reply) + 1);
- if (msg == NULL)
- break;
- os_memcpy(msg, wpabuf_head(reply), wpabuf_len(reply));
- break;
- case HTTP_CLIENT_FAILED:
- case HTTP_CLIENT_INVALID_REPLY:
- case HTTP_CLIENT_TIMEOUT:
- wpa_printf(MSG_DEBUG, "WPS ER: PutMessage failed");
- if (ap->wps) {
- wps_deinit(ap->wps);
- ap->wps = NULL;
- }
- break;
- }
- http_client_free(ap->http);
- ap->http = NULL;
-
- if (msg) {
- struct wpabuf *buf;
- enum http_reply_code ret;
- buf = xml_get_base64_item(msg, "NewOutMessage", &ret);
- os_free(msg);
- if (buf == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Could not extract "
- "NewOutMessage from PutMessage response");
- return;
- }
- wps_er_ap_process(ap, buf);
- wpabuf_free(buf);
- }
-}
-
-
-static void wps_er_ap_put_message(struct wps_er_ap *ap,
- const struct wpabuf *msg)
-{
- struct wpabuf *buf;
- char *len_ptr, *body_ptr;
- struct sockaddr_in dst;
- char *url, *path;
-
- if (ap->http) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending HTTP operation ongoing "
- "with the AP - cannot continue learn");
- return;
- }
-
- if (ap->control_url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: No controlURL for AP");
- return;
- }
-
- url = http_client_url_parse(ap->control_url, &dst, &path);
- if (url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse controlURL");
- return;
- }
-
- buf = wps_er_soap_hdr(msg, "PutMessage", "NewInMessage", path, &dst,
- &len_ptr, &body_ptr);
- os_free(url);
- if (buf == NULL)
- return;
-
- wps_er_soap_end(buf, "PutMessage", len_ptr, body_ptr);
-
- ap->http = http_client_addr(&dst, buf, 10000,
- wps_er_http_put_message_cb, ap);
- if (ap->http == NULL)
- wpabuf_free(buf);
-}
-
-
-static void wps_er_ap_process(struct wps_er_ap *ap, struct wpabuf *msg)
-{
- enum wps_process_res res;
- struct wps_parse_attr attr;
- enum wsc_op_code op_code;
-
- op_code = WSC_MSG;
- if (wps_parse_msg(msg, &attr) == 0 && attr.msg_type) {
- switch (*attr.msg_type) {
- case WPS_WSC_ACK:
- op_code = WSC_ACK;
- break;
- case WPS_WSC_NACK:
- op_code = WSC_NACK;
- break;
- case WPS_WSC_DONE:
- op_code = WSC_Done;
- break;
- }
- }
-
- res = wps_process_msg(ap->wps, op_code, msg);
- if (res == WPS_CONTINUE) {
- struct wpabuf *next = wps_get_msg(ap->wps, &op_code);
- if (next) {
- wps_er_ap_put_message(ap, next);
- wpabuf_free(next);
- } else {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to build "
- "message");
- wps_deinit(ap->wps);
- ap->wps = NULL;
- }
- } else if (res == WPS_DONE) {
- wpa_printf(MSG_DEBUG, "WPS ER: Protocol run done");
- wps_deinit(ap->wps);
- ap->wps = NULL;
- } else {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to process message from "
- "AP (res=%d)", res);
- wps_deinit(ap->wps);
- ap->wps = NULL;
- }
-}
-
-
-static void wps_er_ap_learn_m1(struct wps_er_ap *ap, struct wpabuf *m1)
-{
- struct wps_config cfg;
-
- if (ap->wps) {
- wpa_printf(MSG_DEBUG, "WPS ER: Protocol run already in "
- "progress with this AP");
- return;
- }
-
- os_memset(&cfg, 0, sizeof(cfg));
- cfg.wps = ap->er->wps;
- cfg.registrar = 1;
- ap->wps = wps_init(&cfg);
- if (ap->wps == NULL)
- return;
- ap->wps->ap_settings_cb = wps_er_ap_settings_cb;
- ap->wps->ap_settings_cb_ctx = ap;
-
- wps_er_ap_process(ap, m1);
-}
-
-
-static void wps_er_ap_learn(struct wps_er_ap *ap, const char *dev_info)
-{
- struct wpabuf *info;
- enum http_reply_code ret;
-
- wpa_printf(MSG_DEBUG, "WPS ER: Received GetDeviceInfo response (M1) "
- "from the AP");
- info = xml_get_base64_item(dev_info, "NewDeviceInfo", &ret);
- if (info == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Could not extract "
- "NewDeviceInfo from GetDeviceInfo response");
- return;
- }
-
- ap->m1_handler(ap, info);
- wpabuf_free(info);
-}
-
-
-static void wps_er_http_get_dev_info_cb(void *ctx, struct http_client *c,
- enum http_client_event event)
-{
- struct wps_er_ap *ap = ctx;
- struct wpabuf *reply;
- char *dev_info = NULL;
-
- switch (event) {
- case HTTP_CLIENT_OK:
- wpa_printf(MSG_DEBUG, "WPS ER: GetDeviceInfo OK");
- reply = http_client_get_body(c);
- if (reply == NULL)
- break;
- dev_info = os_zalloc(wpabuf_len(reply) + 1);
- if (dev_info == NULL)
- break;
- os_memcpy(dev_info, wpabuf_head(reply), wpabuf_len(reply));
- break;
- case HTTP_CLIENT_FAILED:
- case HTTP_CLIENT_INVALID_REPLY:
- case HTTP_CLIENT_TIMEOUT:
- wpa_printf(MSG_DEBUG, "WPS ER: GetDeviceInfo failed");
- break;
- }
- http_client_free(ap->http);
- ap->http = NULL;
-
- if (dev_info) {
- wps_er_ap_learn(ap, dev_info);
- os_free(dev_info);
- }
-}
-
-
-static int wps_er_send_get_device_info(struct wps_er_ap *ap,
- void (*m1_handler)(struct wps_er_ap *ap,
- struct wpabuf *m1))
-{
- struct wpabuf *buf;
- char *len_ptr, *body_ptr;
- struct sockaddr_in dst;
- char *url, *path;
-
- if (ap->http) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending HTTP operation ongoing "
- "with the AP - cannot get device info");
- return -1;
- }
-
- if (ap->control_url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: No controlURL for AP");
- return -1;
- }
-
- url = http_client_url_parse(ap->control_url, &dst, &path);
- if (url == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: Failed to parse controlURL");
- return -1;
- }
-
- buf = wps_er_soap_hdr(NULL, "GetDeviceInfo", NULL, path, &dst,
- &len_ptr, &body_ptr);
- os_free(url);
- if (buf == NULL)
- return -1;
-
- wps_er_soap_end(buf, "GetDeviceInfo", len_ptr, body_ptr);
-
- ap->http = http_client_addr(&dst, buf, 10000,
- wps_er_http_get_dev_info_cb, ap);
- if (ap->http == NULL) {
- wpabuf_free(buf);
- return -1;
- }
-
- ap->m1_handler = m1_handler;
-
- return 0;
-}
-
-
-int wps_er_learn(struct wps_er *er, const u8 *uuid, const u8 *pin,
- size_t pin_len)
-{
- struct wps_er_ap *ap;
-
- if (er == NULL)
- return -1;
-
- ap = wps_er_ap_get(er, NULL, uuid);
- if (ap == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: AP not found for learn "
- "request");
- return -1;
- }
- if (ap->wps) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending operation ongoing "
- "with the AP - cannot start learn");
- return -1;
- }
-
- if (wps_er_send_get_device_info(ap, wps_er_ap_learn_m1) < 0)
- return -1;
-
- er->skip_set_sel_reg = 1;
- wps_registrar_add_pin(er->wps->registrar, NULL, uuid, pin, pin_len, 0);
- er->skip_set_sel_reg = 0;
-
- return 0;
-}
-
-
-static void wps_er_ap_config_m1(struct wps_er_ap *ap, struct wpabuf *m1)
-{
- struct wps_config cfg;
-
- if (ap->wps) {
- wpa_printf(MSG_DEBUG, "WPS ER: Protocol run already in "
- "progress with this AP");
- return;
- }
-
- os_memset(&cfg, 0, sizeof(cfg));
- cfg.wps = ap->er->wps;
- cfg.registrar = 1;
- cfg.new_ap_settings = ap->ap_settings;
- ap->wps = wps_init(&cfg);
- if (ap->wps == NULL)
- return;
- ap->wps->ap_settings_cb = NULL;
- ap->wps->ap_settings_cb_ctx = NULL;
-
- wps_er_ap_process(ap, m1);
-}
-
-
-int wps_er_config(struct wps_er *er, const u8 *uuid, const u8 *pin,
- size_t pin_len, const struct wps_credential *cred)
-{
- struct wps_er_ap *ap;
-
- if (er == NULL)
- return -1;
-
- ap = wps_er_ap_get(er, NULL, uuid);
- if (ap == NULL) {
- wpa_printf(MSG_DEBUG, "WPS ER: AP not found for config "
- "request");
- return -1;
- }
- if (ap->wps) {
- wpa_printf(MSG_DEBUG, "WPS ER: Pending operation ongoing "
- "with the AP - cannot start config");
- return -1;
- }
-
- os_free(ap->ap_settings);
- ap->ap_settings = os_malloc(sizeof(*cred));
- if (ap->ap_settings == NULL)
- return -1;
- os_memcpy(ap->ap_settings, cred, sizeof(*cred));
- ap->ap_settings->cred_attr = NULL;
-
- if (wps_er_send_get_device_info(ap, wps_er_ap_config_m1) < 0)
- return -1;
-
- er->skip_set_sel_reg = 1;
- wps_registrar_add_pin(er->wps->registrar, NULL, uuid, pin, pin_len, 0);
- er->skip_set_sel_reg = 0;
-
- return 0;
-}
projects / mech_eap.git / blobdiff