8179ae3a2a
To retain configurator information across hostapd/wpa_supplicant restart, private key need to be maintained to generate a valid pair of authentication keys (connector, netaccess_key, csign) for new enrollees in the network. Add a DPP_CONFIGURATOR_GET_KEY control interface API through which the private key of an existing configurator can be fetched. Command format: DPP_CONFIGURATOR_GET_KEY <configurator_id> The output from this command can then be used with "DPP_CONFIGURATOR_ADD key=<hexdump>" to create the same key again. Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2599 lines
70 KiB
C
2599 lines
70 KiB
C
/*
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* wpa_supplicant - DPP
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* Copyright (c) 2017, Qualcomm Atheros, Inc.
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* Copyright (c) 2018, The Linux Foundation
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "utils/eloop.h"
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#include "common/dpp.h"
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#include "common/gas.h"
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#include "common/gas_server.h"
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#include "rsn_supp/wpa.h"
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#include "rsn_supp/pmksa_cache.h"
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#include "wpa_supplicant_i.h"
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#include "config.h"
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#include "driver_i.h"
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#include "offchannel.h"
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#include "gas_query.h"
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#include "bss.h"
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#include "scan.h"
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#include "notify.h"
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#include "dpp_supplicant.h"
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static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s,
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unsigned int freq);
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static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx);
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static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator);
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static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s,
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unsigned int freq, const u8 *dst,
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const u8 *src, const u8 *bssid,
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const u8 *data, size_t data_len,
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enum offchannel_send_action_result result);
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static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx);
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static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s);
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static void
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wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s,
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unsigned int freq, const u8 *dst,
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const u8 *src, const u8 *bssid,
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const u8 *data, size_t data_len,
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enum offchannel_send_action_result result);
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static const u8 broadcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
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/* Use a hardcoded Transaction ID 1 in Peer Discovery frames since there is only
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* a single transaction in progress at any point in time. */
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static const u8 TRANSACTION_ID = 1;
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static struct dpp_configurator *
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dpp_configurator_get_id(struct wpa_supplicant *wpa_s, unsigned int id)
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{
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struct dpp_configurator *conf;
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dl_list_for_each(conf, &wpa_s->dpp_configurator,
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struct dpp_configurator, list) {
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if (conf->id == id)
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return conf;
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}
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return NULL;
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}
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static unsigned int wpas_dpp_next_id(struct wpa_supplicant *wpa_s)
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{
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struct dpp_bootstrap_info *bi;
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unsigned int max_id = 0;
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dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
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list) {
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if (bi->id > max_id)
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max_id = bi->id;
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}
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return max_id + 1;
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}
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/**
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* wpas_dpp_qr_code - Parse and add DPP bootstrapping info from a QR Code
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* @wpa_s: Pointer to wpa_supplicant data
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* @cmd: DPP URI read from a QR Code
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* Returns: Identifier of the stored info or -1 on failure
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*/
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int wpas_dpp_qr_code(struct wpa_supplicant *wpa_s, const char *cmd)
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{
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struct dpp_bootstrap_info *bi;
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struct dpp_authentication *auth = wpa_s->dpp_auth;
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bi = dpp_parse_qr_code(cmd);
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if (!bi)
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return -1;
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bi->id = wpas_dpp_next_id(wpa_s);
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dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
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if (auth && auth->response_pending &&
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dpp_notify_new_qr_code(auth, bi) == 1) {
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wpa_printf(MSG_DEBUG,
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"DPP: Sending out pending authentication response");
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wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
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" freq=%u type=%d",
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MAC2STR(auth->peer_mac_addr), auth->curr_freq,
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DPP_PA_AUTHENTICATION_RESP);
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offchannel_send_action(wpa_s, auth->curr_freq,
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auth->peer_mac_addr, wpa_s->own_addr,
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broadcast,
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wpabuf_head(auth->resp_msg),
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wpabuf_len(auth->resp_msg),
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500, wpas_dpp_tx_status, 0);
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}
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return bi->id;
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}
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static char * get_param(const char *cmd, const char *param)
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{
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const char *pos, *end;
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char *val;
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size_t len;
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pos = os_strstr(cmd, param);
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if (!pos)
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return NULL;
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pos += os_strlen(param);
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end = os_strchr(pos, ' ');
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if (end)
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len = end - pos;
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else
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len = os_strlen(pos);
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val = os_malloc(len + 1);
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if (!val)
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return NULL;
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os_memcpy(val, pos, len);
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val[len] = '\0';
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return val;
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}
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int wpas_dpp_bootstrap_gen(struct wpa_supplicant *wpa_s, const char *cmd)
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{
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char *chan = NULL, *mac = NULL, *info = NULL, *pk = NULL, *curve = NULL;
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char *key = NULL;
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u8 *privkey = NULL;
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size_t privkey_len = 0;
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size_t len;
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int ret = -1;
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struct dpp_bootstrap_info *bi;
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bi = os_zalloc(sizeof(*bi));
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if (!bi)
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goto fail;
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if (os_strstr(cmd, "type=qrcode"))
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bi->type = DPP_BOOTSTRAP_QR_CODE;
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else if (os_strstr(cmd, "type=pkex"))
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bi->type = DPP_BOOTSTRAP_PKEX;
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else
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goto fail;
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chan = get_param(cmd, " chan=");
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mac = get_param(cmd, " mac=");
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info = get_param(cmd, " info=");
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curve = get_param(cmd, " curve=");
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key = get_param(cmd, " key=");
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if (key) {
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privkey_len = os_strlen(key) / 2;
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privkey = os_malloc(privkey_len);
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if (!privkey ||
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hexstr2bin(key, privkey, privkey_len) < 0)
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goto fail;
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}
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pk = dpp_keygen(bi, curve, privkey, privkey_len);
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if (!pk)
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goto fail;
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len = 4; /* "DPP:" */
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if (chan) {
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if (dpp_parse_uri_chan_list(bi, chan) < 0)
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goto fail;
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len += 3 + os_strlen(chan); /* C:...; */
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}
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if (mac) {
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if (dpp_parse_uri_mac(bi, mac) < 0)
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goto fail;
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len += 3 + os_strlen(mac); /* M:...; */
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}
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if (info) {
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if (dpp_parse_uri_info(bi, info) < 0)
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goto fail;
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len += 3 + os_strlen(info); /* I:...; */
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}
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len += 4 + os_strlen(pk);
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bi->uri = os_malloc(len + 1);
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if (!bi->uri)
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goto fail;
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os_snprintf(bi->uri, len + 1, "DPP:%s%s%s%s%s%s%s%s%sK:%s;;",
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chan ? "C:" : "", chan ? chan : "", chan ? ";" : "",
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mac ? "M:" : "", mac ? mac : "", mac ? ";" : "",
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info ? "I:" : "", info ? info : "", info ? ";" : "",
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pk);
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bi->id = wpas_dpp_next_id(wpa_s);
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dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
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ret = bi->id;
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bi = NULL;
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fail:
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os_free(curve);
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os_free(pk);
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os_free(chan);
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os_free(mac);
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os_free(info);
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str_clear_free(key);
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bin_clear_free(privkey, privkey_len);
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dpp_bootstrap_info_free(bi);
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return ret;
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}
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static struct dpp_bootstrap_info *
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dpp_bootstrap_get_id(struct wpa_supplicant *wpa_s, unsigned int id)
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{
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struct dpp_bootstrap_info *bi;
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dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
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list) {
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if (bi->id == id)
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return bi;
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}
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return NULL;
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}
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static int dpp_bootstrap_del(struct wpa_supplicant *wpa_s, unsigned int id)
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{
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struct dpp_bootstrap_info *bi, *tmp;
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int found = 0;
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dl_list_for_each_safe(bi, tmp, &wpa_s->dpp_bootstrap,
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struct dpp_bootstrap_info, list) {
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if (id && bi->id != id)
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continue;
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found = 1;
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dl_list_del(&bi->list);
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dpp_bootstrap_info_free(bi);
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}
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if (id == 0)
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return 0; /* flush succeeds regardless of entries found */
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return found ? 0 : -1;
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}
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int wpas_dpp_bootstrap_remove(struct wpa_supplicant *wpa_s, const char *id)
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{
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unsigned int id_val;
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if (os_strcmp(id, "*") == 0) {
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id_val = 0;
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} else {
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id_val = atoi(id);
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if (id_val == 0)
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return -1;
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}
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return dpp_bootstrap_del(wpa_s, id_val);
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}
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const char * wpas_dpp_bootstrap_get_uri(struct wpa_supplicant *wpa_s,
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unsigned int id)
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{
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struct dpp_bootstrap_info *bi;
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bi = dpp_bootstrap_get_id(wpa_s, id);
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if (!bi)
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return NULL;
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return bi->uri;
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}
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int wpas_dpp_bootstrap_info(struct wpa_supplicant *wpa_s, int id,
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char *reply, int reply_size)
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{
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struct dpp_bootstrap_info *bi;
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bi = dpp_bootstrap_get_id(wpa_s, id);
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if (!bi)
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return -1;
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return os_snprintf(reply, reply_size, "type=%s\n"
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"mac_addr=" MACSTR "\n"
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"info=%s\n"
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"num_freq=%u\n"
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"curve=%s\n",
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dpp_bootstrap_type_txt(bi->type),
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MAC2STR(bi->mac_addr),
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bi->info ? bi->info : "",
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bi->num_freq,
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bi->curve->name);
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}
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static void wpas_dpp_auth_resp_retry_timeout(void *eloop_ctx, void *timeout_ctx)
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{
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struct wpa_supplicant *wpa_s = eloop_ctx;
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struct dpp_authentication *auth = wpa_s->dpp_auth;
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if (!auth || !auth->resp_msg)
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return;
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wpa_printf(MSG_DEBUG,
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"DPP: Retry Authentication Response after timeout");
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wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
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" freq=%u type=%d",
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MAC2STR(auth->peer_mac_addr), auth->curr_freq,
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DPP_PA_AUTHENTICATION_RESP);
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offchannel_send_action(wpa_s, auth->curr_freq, auth->peer_mac_addr,
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wpa_s->own_addr, broadcast,
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wpabuf_head(auth->resp_msg),
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wpabuf_len(auth->resp_msg),
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500, wpas_dpp_tx_status, 0);
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}
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static void wpas_dpp_auth_resp_retry(struct wpa_supplicant *wpa_s)
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{
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struct dpp_authentication *auth = wpa_s->dpp_auth;
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unsigned int wait_time, max_tries;
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if (!auth || !auth->resp_msg)
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return;
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if (wpa_s->dpp_resp_max_tries)
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max_tries = wpa_s->dpp_resp_max_tries;
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else
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max_tries = 5;
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auth->auth_resp_tries++;
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if (auth->auth_resp_tries >= max_tries) {
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wpa_printf(MSG_INFO, "DPP: No confirm received from initiator - stopping exchange");
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offchannel_send_action_done(wpa_s);
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dpp_auth_deinit(wpa_s->dpp_auth);
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wpa_s->dpp_auth = NULL;
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return;
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}
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if (wpa_s->dpp_resp_retry_time)
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wait_time = wpa_s->dpp_resp_retry_time;
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else
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wait_time = 1000;
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wpa_printf(MSG_DEBUG,
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"DPP: Schedule retransmission of Authentication Response frame in %u ms",
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wait_time);
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eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
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eloop_register_timeout(wait_time / 1000,
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(wait_time % 1000) * 1000,
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wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
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}
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static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s,
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unsigned int freq, const u8 *dst,
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const u8 *src, const u8 *bssid,
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const u8 *data, size_t data_len,
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enum offchannel_send_action_result result)
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{
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const char *res_txt;
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struct dpp_authentication *auth = wpa_s->dpp_auth;
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res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
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(result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
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"FAILED");
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wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
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" result=%s", freq, MAC2STR(dst), res_txt);
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wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
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" freq=%u result=%s", MAC2STR(dst), freq, res_txt);
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if (!wpa_s->dpp_auth) {
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wpa_printf(MSG_DEBUG,
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"DPP: Ignore TX status since there is no ongoing authentication exchange");
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return;
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}
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if (wpa_s->dpp_auth->remove_on_tx_status) {
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wpa_printf(MSG_DEBUG,
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"DPP: Terminate authentication exchange due to an earlier error");
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eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
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eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
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eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s,
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NULL);
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offchannel_send_action_done(wpa_s);
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dpp_auth_deinit(wpa_s->dpp_auth);
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wpa_s->dpp_auth = NULL;
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return;
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}
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if (wpa_s->dpp_auth_ok_on_ack)
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wpas_dpp_auth_success(wpa_s, 1);
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|
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if (!is_broadcast_ether_addr(dst) &&
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result != OFFCHANNEL_SEND_ACTION_SUCCESS) {
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wpa_printf(MSG_DEBUG,
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"DPP: Unicast DPP Action frame was not ACKed");
|
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if (auth->waiting_auth_resp) {
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/* In case of DPP Authentication Request frame, move to
|
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* the next channel immediately. */
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offchannel_send_action_done(wpa_s);
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wpas_dpp_auth_init_next(wpa_s);
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return;
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}
|
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if (auth->waiting_auth_conf) {
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wpas_dpp_auth_resp_retry(wpa_s);
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return;
|
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}
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}
|
|
|
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if (!is_broadcast_ether_addr(dst) && auth->waiting_auth_resp &&
|
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result == OFFCHANNEL_SEND_ACTION_SUCCESS) {
|
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/* Allow timeout handling to stop iteration if no response is
|
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* received from a peer that has ACKed a request. */
|
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auth->auth_req_ack = 1;
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}
|
|
|
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if (!wpa_s->dpp_auth_ok_on_ack && wpa_s->dpp_auth->neg_freq > 0 &&
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wpa_s->dpp_auth->curr_freq != wpa_s->dpp_auth->neg_freq) {
|
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wpa_printf(MSG_DEBUG,
|
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"DPP: Move from curr_freq %u MHz to neg_freq %u MHz for response",
|
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wpa_s->dpp_auth->curr_freq,
|
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wpa_s->dpp_auth->neg_freq);
|
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offchannel_send_action_done(wpa_s);
|
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wpas_dpp_listen_start(wpa_s, wpa_s->dpp_auth->neg_freq);
|
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}
|
|
|
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if (wpa_s->dpp_auth_ok_on_ack)
|
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wpa_s->dpp_auth_ok_on_ack = 0;
|
|
}
|
|
|
|
|
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static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
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struct dpp_authentication *auth = wpa_s->dpp_auth;
|
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unsigned int freq;
|
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struct os_reltime now, diff;
|
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unsigned int wait_time, diff_ms;
|
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|
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if (!auth || !auth->waiting_auth_resp)
|
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return;
|
|
|
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wait_time = wpa_s->dpp_resp_wait_time ?
|
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wpa_s->dpp_resp_wait_time : 2000;
|
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os_get_reltime(&now);
|
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os_reltime_sub(&now, &wpa_s->dpp_last_init, &diff);
|
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diff_ms = diff.sec * 1000 + diff.usec / 1000;
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Reply wait timeout - wait_time=%u diff_ms=%u",
|
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wait_time, diff_ms);
|
|
|
|
if (auth->auth_req_ack && diff_ms >= wait_time) {
|
|
/* Peer ACK'ed Authentication Request frame, but did not reply
|
|
* with Authentication Response frame within two seconds. */
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: No response received from responder - stopping initiation attempt");
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED);
|
|
offchannel_send_action_done(wpa_s);
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
dpp_auth_deinit(auth);
|
|
wpa_s->dpp_auth = NULL;
|
|
return;
|
|
}
|
|
|
|
if (diff_ms >= wait_time) {
|
|
/* Authentication Request frame was not ACK'ed and no reply
|
|
* was receiving within two seconds. */
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Continue Initiator channel iteration");
|
|
offchannel_send_action_done(wpa_s);
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
wpas_dpp_auth_init_next(wpa_s);
|
|
return;
|
|
}
|
|
|
|
/* Driver did not support 2000 ms long wait_time with TX command, so
|
|
* schedule listen operation to continue waiting for the response.
|
|
*
|
|
* DPP listen operations continue until stopped, so simply schedule a
|
|
* new call to this function at the point when the two second reply
|
|
* wait has expired. */
|
|
wait_time -= diff_ms;
|
|
|
|
freq = auth->curr_freq;
|
|
if (auth->neg_freq > 0)
|
|
freq = auth->neg_freq;
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Continue reply wait on channel %u MHz for %u ms",
|
|
freq, wait_time);
|
|
wpa_s->dpp_in_response_listen = 1;
|
|
wpas_dpp_listen_start(wpa_s, freq);
|
|
|
|
eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000,
|
|
wpas_dpp_reply_wait_timeout, wpa_s, NULL);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_set_testing_options(struct wpa_supplicant *wpa_s,
|
|
struct dpp_authentication *auth)
|
|
{
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
if (wpa_s->dpp_config_obj_override)
|
|
auth->config_obj_override =
|
|
os_strdup(wpa_s->dpp_config_obj_override);
|
|
if (wpa_s->dpp_discovery_override)
|
|
auth->discovery_override =
|
|
os_strdup(wpa_s->dpp_discovery_override);
|
|
if (wpa_s->dpp_groups_override)
|
|
auth->groups_override =
|
|
os_strdup(wpa_s->dpp_groups_override);
|
|
auth->ignore_netaccesskey_mismatch =
|
|
wpa_s->dpp_ignore_netaccesskey_mismatch;
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
}
|
|
|
|
|
|
static void wpas_dpp_set_configurator(struct wpa_supplicant *wpa_s,
|
|
struct dpp_authentication *auth,
|
|
const char *cmd)
|
|
{
|
|
const char *pos, *end;
|
|
struct dpp_configuration *conf_sta = NULL, *conf_ap = NULL;
|
|
struct dpp_configurator *conf = NULL;
|
|
u8 ssid[32] = { "test" };
|
|
size_t ssid_len = 4;
|
|
char pass[64] = { };
|
|
size_t pass_len = 0;
|
|
u8 psk[PMK_LEN];
|
|
int psk_set = 0;
|
|
|
|
if (!cmd)
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Set configurator parameters: %s", cmd);
|
|
pos = os_strstr(cmd, " ssid=");
|
|
if (pos) {
|
|
pos += 6;
|
|
end = os_strchr(pos, ' ');
|
|
ssid_len = end ? (size_t) (end - pos) : os_strlen(pos);
|
|
ssid_len /= 2;
|
|
if (ssid_len > sizeof(ssid) ||
|
|
hexstr2bin(pos, ssid, ssid_len) < 0)
|
|
goto fail;
|
|
}
|
|
|
|
pos = os_strstr(cmd, " pass=");
|
|
if (pos) {
|
|
pos += 6;
|
|
end = os_strchr(pos, ' ');
|
|
pass_len = end ? (size_t) (end - pos) : os_strlen(pos);
|
|
pass_len /= 2;
|
|
if (pass_len > sizeof(pass) - 1 || pass_len < 8 ||
|
|
hexstr2bin(pos, (u8 *) pass, pass_len) < 0)
|
|
goto fail;
|
|
}
|
|
|
|
pos = os_strstr(cmd, " psk=");
|
|
if (pos) {
|
|
pos += 5;
|
|
if (hexstr2bin(pos, psk, PMK_LEN) < 0)
|
|
goto fail;
|
|
psk_set = 1;
|
|
}
|
|
|
|
if (os_strstr(cmd, " conf=sta-")) {
|
|
conf_sta = os_zalloc(sizeof(struct dpp_configuration));
|
|
if (!conf_sta)
|
|
goto fail;
|
|
os_memcpy(conf_sta->ssid, ssid, ssid_len);
|
|
conf_sta->ssid_len = ssid_len;
|
|
if (os_strstr(cmd, " conf=sta-psk") ||
|
|
os_strstr(cmd, " conf=sta-sae") ||
|
|
os_strstr(cmd, " conf=sta-psk-sae")) {
|
|
if (os_strstr(cmd, " conf=sta-psk-sae"))
|
|
conf_sta->akm = DPP_AKM_PSK_SAE;
|
|
else if (os_strstr(cmd, " conf=sta-sae"))
|
|
conf_sta->akm = DPP_AKM_SAE;
|
|
else
|
|
conf_sta->akm = DPP_AKM_PSK;
|
|
if (psk_set) {
|
|
os_memcpy(conf_sta->psk, psk, PMK_LEN);
|
|
} else {
|
|
conf_sta->passphrase = os_strdup(pass);
|
|
if (!conf_sta->passphrase)
|
|
goto fail;
|
|
}
|
|
} else if (os_strstr(cmd, " conf=sta-dpp")) {
|
|
conf_sta->akm = DPP_AKM_DPP;
|
|
} else {
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (os_strstr(cmd, " conf=ap-")) {
|
|
conf_ap = os_zalloc(sizeof(struct dpp_configuration));
|
|
if (!conf_ap)
|
|
goto fail;
|
|
os_memcpy(conf_ap->ssid, ssid, ssid_len);
|
|
conf_ap->ssid_len = ssid_len;
|
|
if (os_strstr(cmd, " conf=ap-psk") ||
|
|
os_strstr(cmd, " conf=ap-sae") ||
|
|
os_strstr(cmd, " conf=ap-psk-sae")) {
|
|
if (os_strstr(cmd, " conf=ap-psk-sae"))
|
|
conf_ap->akm = DPP_AKM_PSK_SAE;
|
|
else if (os_strstr(cmd, " conf=ap-sae"))
|
|
conf_ap->akm = DPP_AKM_SAE;
|
|
else
|
|
conf_ap->akm = DPP_AKM_PSK;
|
|
if (psk_set) {
|
|
os_memcpy(conf_ap->psk, psk, PMK_LEN);
|
|
} else {
|
|
conf_ap->passphrase = os_strdup(pass);
|
|
if (!conf_ap->passphrase)
|
|
goto fail;
|
|
}
|
|
} else if (os_strstr(cmd, " conf=ap-dpp")) {
|
|
conf_ap->akm = DPP_AKM_DPP;
|
|
} else {
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
pos = os_strstr(cmd, " expiry=");
|
|
if (pos) {
|
|
long int val;
|
|
|
|
pos += 8;
|
|
val = strtol(pos, NULL, 0);
|
|
if (val <= 0)
|
|
goto fail;
|
|
if (conf_sta)
|
|
conf_sta->netaccesskey_expiry = val;
|
|
if (conf_ap)
|
|
conf_ap->netaccesskey_expiry = val;
|
|
}
|
|
|
|
pos = os_strstr(cmd, " configurator=");
|
|
if (pos) {
|
|
pos += 14;
|
|
conf = dpp_configurator_get_id(wpa_s, atoi(pos));
|
|
if (!conf) {
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: Could not find the specified configurator");
|
|
goto fail;
|
|
}
|
|
}
|
|
auth->conf_sta = conf_sta;
|
|
auth->conf_ap = conf_ap;
|
|
auth->conf = conf;
|
|
return;
|
|
|
|
fail:
|
|
wpa_printf(MSG_DEBUG, "DPP: Failed to set configurator parameters");
|
|
dpp_configuration_free(conf_sta);
|
|
dpp_configuration_free(conf_ap);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
|
|
if (!wpa_s->dpp_auth)
|
|
return;
|
|
wpa_printf(MSG_DEBUG, "DPP: Retry initiation after timeout");
|
|
wpas_dpp_auth_init_next(wpa_s);
|
|
}
|
|
|
|
|
|
static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct dpp_authentication *auth = wpa_s->dpp_auth;
|
|
const u8 *dst;
|
|
unsigned int wait_time, max_wait_time, freq, max_tries, used;
|
|
struct os_reltime now, diff;
|
|
|
|
wpa_s->dpp_in_response_listen = 0;
|
|
if (!auth)
|
|
return -1;
|
|
|
|
if (auth->freq_idx == 0)
|
|
os_get_reltime(&wpa_s->dpp_init_iter_start);
|
|
|
|
if (auth->freq_idx >= auth->num_freq) {
|
|
auth->num_freq_iters++;
|
|
if (wpa_s->dpp_init_max_tries)
|
|
max_tries = wpa_s->dpp_init_max_tries;
|
|
else
|
|
max_tries = 5;
|
|
if (auth->num_freq_iters >= max_tries || auth->auth_req_ack) {
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: No response received from responder - stopping initiation attempt");
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED);
|
|
eloop_cancel_timeout(wpas_dpp_reply_wait_timeout,
|
|
wpa_s, NULL);
|
|
offchannel_send_action_done(wpa_s);
|
|
dpp_auth_deinit(wpa_s->dpp_auth);
|
|
wpa_s->dpp_auth = NULL;
|
|
return -1;
|
|
}
|
|
auth->freq_idx = 0;
|
|
eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
|
|
if (wpa_s->dpp_init_retry_time)
|
|
wait_time = wpa_s->dpp_init_retry_time;
|
|
else
|
|
wait_time = 10000;
|
|
os_get_reltime(&now);
|
|
os_reltime_sub(&now, &wpa_s->dpp_init_iter_start, &diff);
|
|
used = diff.sec * 1000 + diff.usec / 1000;
|
|
if (used > wait_time)
|
|
wait_time = 0;
|
|
else
|
|
wait_time -= used;
|
|
wpa_printf(MSG_DEBUG, "DPP: Next init attempt in %u ms",
|
|
wait_time);
|
|
eloop_register_timeout(wait_time / 1000,
|
|
(wait_time % 1000) * 1000,
|
|
wpas_dpp_init_timeout, wpa_s,
|
|
NULL);
|
|
return 0;
|
|
}
|
|
freq = auth->freq[auth->freq_idx++];
|
|
auth->curr_freq = freq;
|
|
|
|
if (is_zero_ether_addr(auth->peer_bi->mac_addr))
|
|
dst = broadcast;
|
|
else
|
|
dst = auth->peer_bi->mac_addr;
|
|
wpa_s->dpp_auth_ok_on_ack = 0;
|
|
eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
|
|
wait_time = wpa_s->max_remain_on_chan;
|
|
max_wait_time = wpa_s->dpp_resp_wait_time ?
|
|
wpa_s->dpp_resp_wait_time : 2000;
|
|
if (wait_time > max_wait_time)
|
|
wait_time = max_wait_time;
|
|
wait_time += 10; /* give the driver some extra time to complete */
|
|
eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000,
|
|
wpas_dpp_reply_wait_timeout,
|
|
wpa_s, NULL);
|
|
wait_time -= 10;
|
|
if (auth->neg_freq > 0 && freq != auth->neg_freq) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Initiate on %u MHz and move to neg_freq %u MHz for response",
|
|
freq, auth->neg_freq);
|
|
}
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(dst), freq, DPP_PA_AUTHENTICATION_REQ);
|
|
auth->auth_req_ack = 0;
|
|
os_get_reltime(&wpa_s->dpp_last_init);
|
|
return offchannel_send_action(wpa_s, freq, dst,
|
|
wpa_s->own_addr, broadcast,
|
|
wpabuf_head(auth->req_msg),
|
|
wpabuf_len(auth->req_msg),
|
|
wait_time, wpas_dpp_tx_status, 0);
|
|
}
|
|
|
|
|
|
int wpas_dpp_auth_init(struct wpa_supplicant *wpa_s, const char *cmd)
|
|
{
|
|
const char *pos;
|
|
struct dpp_bootstrap_info *peer_bi, *own_bi = NULL;
|
|
u8 allowed_roles = DPP_CAPAB_CONFIGURATOR;
|
|
unsigned int neg_freq = 0;
|
|
|
|
wpa_s->dpp_gas_client = 0;
|
|
|
|
pos = os_strstr(cmd, " peer=");
|
|
if (!pos)
|
|
return -1;
|
|
pos += 6;
|
|
peer_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
|
|
if (!peer_bi) {
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: Could not find bootstrapping info for the identified peer");
|
|
return -1;
|
|
}
|
|
|
|
pos = os_strstr(cmd, " own=");
|
|
if (pos) {
|
|
pos += 5;
|
|
own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
|
|
if (!own_bi) {
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: Could not find bootstrapping info for the identified local entry");
|
|
return -1;
|
|
}
|
|
|
|
if (peer_bi->curve != own_bi->curve) {
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: Mismatching curves in bootstrapping info (peer=%s own=%s)",
|
|
peer_bi->curve->name, own_bi->curve->name);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
pos = os_strstr(cmd, " role=");
|
|
if (pos) {
|
|
pos += 6;
|
|
if (os_strncmp(pos, "configurator", 12) == 0)
|
|
allowed_roles = DPP_CAPAB_CONFIGURATOR;
|
|
else if (os_strncmp(pos, "enrollee", 8) == 0)
|
|
allowed_roles = DPP_CAPAB_ENROLLEE;
|
|
else if (os_strncmp(pos, "either", 6) == 0)
|
|
allowed_roles = DPP_CAPAB_CONFIGURATOR |
|
|
DPP_CAPAB_ENROLLEE;
|
|
else
|
|
goto fail;
|
|
}
|
|
|
|
pos = os_strstr(cmd, " netrole=");
|
|
if (pos) {
|
|
pos += 9;
|
|
wpa_s->dpp_netrole_ap = os_strncmp(pos, "ap", 2) == 0;
|
|
}
|
|
|
|
pos = os_strstr(cmd, " neg_freq=");
|
|
if (pos)
|
|
neg_freq = atoi(pos + 10);
|
|
|
|
if (wpa_s->dpp_auth) {
|
|
eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s,
|
|
NULL);
|
|
offchannel_send_action_done(wpa_s);
|
|
dpp_auth_deinit(wpa_s->dpp_auth);
|
|
}
|
|
wpa_s->dpp_auth = dpp_auth_init(wpa_s, peer_bi, own_bi, allowed_roles,
|
|
neg_freq,
|
|
wpa_s->hw.modes, wpa_s->hw.num_modes);
|
|
if (!wpa_s->dpp_auth)
|
|
goto fail;
|
|
wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
|
|
wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth, cmd);
|
|
|
|
wpa_s->dpp_auth->neg_freq = neg_freq;
|
|
|
|
if (!is_zero_ether_addr(peer_bi->mac_addr))
|
|
os_memcpy(wpa_s->dpp_auth->peer_mac_addr, peer_bi->mac_addr,
|
|
ETH_ALEN);
|
|
|
|
return wpas_dpp_auth_init_next(wpa_s);
|
|
fail:
|
|
return -1;
|
|
}
|
|
|
|
|
|
struct wpas_dpp_listen_work {
|
|
unsigned int freq;
|
|
unsigned int duration;
|
|
struct wpabuf *probe_resp_ie;
|
|
};
|
|
|
|
|
|
static void wpas_dpp_listen_work_free(struct wpas_dpp_listen_work *lwork)
|
|
{
|
|
if (!lwork)
|
|
return;
|
|
os_free(lwork);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_listen_work_done(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpas_dpp_listen_work *lwork;
|
|
|
|
if (!wpa_s->dpp_listen_work)
|
|
return;
|
|
|
|
lwork = wpa_s->dpp_listen_work->ctx;
|
|
wpas_dpp_listen_work_free(lwork);
|
|
radio_work_done(wpa_s->dpp_listen_work);
|
|
wpa_s->dpp_listen_work = NULL;
|
|
}
|
|
|
|
|
|
static void dpp_start_listen_cb(struct wpa_radio_work *work, int deinit)
|
|
{
|
|
struct wpa_supplicant *wpa_s = work->wpa_s;
|
|
struct wpas_dpp_listen_work *lwork = work->ctx;
|
|
|
|
if (deinit) {
|
|
if (work->started) {
|
|
wpa_s->dpp_listen_work = NULL;
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
}
|
|
wpas_dpp_listen_work_free(lwork);
|
|
return;
|
|
}
|
|
|
|
wpa_s->dpp_listen_work = work;
|
|
|
|
wpa_s->dpp_pending_listen_freq = lwork->freq;
|
|
|
|
if (wpa_drv_remain_on_channel(wpa_s, lwork->freq,
|
|
wpa_s->max_remain_on_chan) < 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Failed to request the driver to remain on channel (%u MHz) for listen",
|
|
lwork->freq);
|
|
wpas_dpp_listen_work_done(wpa_s);
|
|
wpa_s->dpp_pending_listen_freq = 0;
|
|
return;
|
|
}
|
|
wpa_s->off_channel_freq = 0;
|
|
wpa_s->roc_waiting_drv_freq = lwork->freq;
|
|
}
|
|
|
|
|
|
static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq)
|
|
{
|
|
struct wpas_dpp_listen_work *lwork;
|
|
|
|
if (wpa_s->dpp_listen_work) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Reject start_listen since dpp_listen_work already exists");
|
|
return -1;
|
|
}
|
|
|
|
if (wpa_s->dpp_listen_freq)
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
wpa_s->dpp_listen_freq = freq;
|
|
|
|
lwork = os_zalloc(sizeof(*lwork));
|
|
if (!lwork)
|
|
return -1;
|
|
lwork->freq = freq;
|
|
|
|
if (radio_add_work(wpa_s, freq, "dpp-listen", 0, dpp_start_listen_cb,
|
|
lwork) < 0) {
|
|
wpas_dpp_listen_work_free(lwork);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpas_dpp_listen(struct wpa_supplicant *wpa_s, const char *cmd)
|
|
{
|
|
int freq;
|
|
|
|
freq = atoi(cmd);
|
|
if (freq <= 0)
|
|
return -1;
|
|
|
|
if (os_strstr(cmd, " role=configurator"))
|
|
wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR;
|
|
else if (os_strstr(cmd, " role=enrollee"))
|
|
wpa_s->dpp_allowed_roles = DPP_CAPAB_ENROLLEE;
|
|
else
|
|
wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR |
|
|
DPP_CAPAB_ENROLLEE;
|
|
wpa_s->dpp_qr_mutual = os_strstr(cmd, " qr=mutual") != NULL;
|
|
wpa_s->dpp_netrole_ap = os_strstr(cmd, " netrole=ap") != NULL;
|
|
if (wpa_s->dpp_listen_freq == (unsigned int) freq) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Already listening on %u MHz",
|
|
freq);
|
|
return 0;
|
|
}
|
|
|
|
return wpas_dpp_listen_start(wpa_s, freq);
|
|
}
|
|
|
|
|
|
void wpas_dpp_listen_stop(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpa_s->dpp_in_response_listen = 0;
|
|
if (!wpa_s->dpp_listen_freq)
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Stop listen on %u MHz",
|
|
wpa_s->dpp_listen_freq);
|
|
wpa_drv_cancel_remain_on_channel(wpa_s);
|
|
wpa_s->dpp_listen_freq = 0;
|
|
wpas_dpp_listen_work_done(wpa_s);
|
|
}
|
|
|
|
|
|
void wpas_dpp_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq)
|
|
{
|
|
if (!wpa_s->dpp_listen_freq && !wpa_s->dpp_pending_listen_freq)
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u)",
|
|
wpa_s->off_channel_freq, wpa_s->dpp_pending_listen_freq,
|
|
wpa_s->roc_waiting_drv_freq, freq);
|
|
if (wpa_s->off_channel_freq &&
|
|
wpa_s->off_channel_freq == wpa_s->dpp_pending_listen_freq) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Listen on %u MHz started", freq);
|
|
wpa_s->dpp_pending_listen_freq = 0;
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Ignore remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d freq=%u)",
|
|
wpa_s->off_channel_freq,
|
|
wpa_s->dpp_pending_listen_freq, freq);
|
|
}
|
|
}
|
|
|
|
|
|
void wpas_dpp_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq)
|
|
{
|
|
wpas_dpp_listen_work_done(wpa_s);
|
|
|
|
if (wpa_s->dpp_auth && wpa_s->dpp_in_response_listen) {
|
|
unsigned int new_freq;
|
|
|
|
/* Continue listen with a new remain-on-channel */
|
|
if (wpa_s->dpp_auth->neg_freq > 0)
|
|
new_freq = wpa_s->dpp_auth->neg_freq;
|
|
else
|
|
new_freq = wpa_s->dpp_auth->curr_freq;
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Continue wait on %u MHz for the ongoing DPP provisioning session",
|
|
new_freq);
|
|
wpas_dpp_listen_start(wpa_s, new_freq);
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->dpp_listen_freq) {
|
|
/* Continue listen with a new remain-on-channel */
|
|
wpas_dpp_listen_start(wpa_s, wpa_s->dpp_listen_freq);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_dpp_rx_auth_req(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *hdr, const u8 *buf, size_t len,
|
|
unsigned int freq)
|
|
{
|
|
const u8 *r_bootstrap, *i_bootstrap;
|
|
u16 r_bootstrap_len, i_bootstrap_len;
|
|
struct dpp_bootstrap_info *bi, *own_bi = NULL, *peer_bi = NULL;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Authentication Request from " MACSTR,
|
|
MAC2STR(src));
|
|
|
|
r_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH,
|
|
&r_bootstrap_len);
|
|
if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
|
|
"Missing or invalid required Responder Bootstrapping Key Hash attribute");
|
|
return;
|
|
}
|
|
wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash",
|
|
r_bootstrap, r_bootstrap_len);
|
|
|
|
i_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_I_BOOTSTRAP_KEY_HASH,
|
|
&i_bootstrap_len);
|
|
if (!i_bootstrap || i_bootstrap_len != SHA256_MAC_LEN) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
|
|
"Missing or invalid required Initiator Bootstrapping Key Hash attribute");
|
|
return;
|
|
}
|
|
wpa_hexdump(MSG_MSGDUMP, "DPP: Initiator Bootstrapping Key Hash",
|
|
i_bootstrap, i_bootstrap_len);
|
|
|
|
/* Try to find own and peer bootstrapping key matches based on the
|
|
* received hash values */
|
|
dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
|
|
list) {
|
|
if (!own_bi && bi->own &&
|
|
os_memcmp(bi->pubkey_hash, r_bootstrap,
|
|
SHA256_MAC_LEN) == 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Found matching own bootstrapping information");
|
|
own_bi = bi;
|
|
}
|
|
|
|
if (!peer_bi && !bi->own &&
|
|
os_memcmp(bi->pubkey_hash, i_bootstrap,
|
|
SHA256_MAC_LEN) == 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Found matching peer bootstrapping information");
|
|
peer_bi = bi;
|
|
}
|
|
|
|
if (own_bi && peer_bi)
|
|
break;
|
|
}
|
|
|
|
if (!own_bi) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
|
|
"No matching own bootstrapping key found - ignore message");
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->dpp_auth) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
|
|
"Already in DPP authentication exchange - ignore new one");
|
|
return;
|
|
}
|
|
|
|
wpa_s->dpp_gas_client = 0;
|
|
wpa_s->dpp_auth_ok_on_ack = 0;
|
|
wpa_s->dpp_auth = dpp_auth_req_rx(wpa_s, wpa_s->dpp_allowed_roles,
|
|
wpa_s->dpp_qr_mutual,
|
|
peer_bi, own_bi, freq, hdr, buf, len);
|
|
if (!wpa_s->dpp_auth) {
|
|
wpa_printf(MSG_DEBUG, "DPP: No response generated");
|
|
return;
|
|
}
|
|
wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
|
|
wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth,
|
|
wpa_s->dpp_configurator_params);
|
|
os_memcpy(wpa_s->dpp_auth->peer_mac_addr, src, ETH_ALEN);
|
|
|
|
if (wpa_s->dpp_listen_freq &&
|
|
wpa_s->dpp_listen_freq != wpa_s->dpp_auth->curr_freq) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Stop listen on %u MHz to allow response on the request %u MHz",
|
|
wpa_s->dpp_listen_freq, wpa_s->dpp_auth->curr_freq);
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
}
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(src), wpa_s->dpp_auth->curr_freq,
|
|
DPP_PA_AUTHENTICATION_RESP);
|
|
offchannel_send_action(wpa_s, wpa_s->dpp_auth->curr_freq,
|
|
src, wpa_s->own_addr, broadcast,
|
|
wpabuf_head(wpa_s->dpp_auth->resp_msg),
|
|
wpabuf_len(wpa_s->dpp_auth->resp_msg),
|
|
500, wpas_dpp_tx_status, 0);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_start_gas_server(struct wpa_supplicant *wpa_s)
|
|
{
|
|
/* TODO: stop wait and start ROC */
|
|
}
|
|
|
|
|
|
static struct wpa_ssid * wpas_dpp_add_network(struct wpa_supplicant *wpa_s,
|
|
struct dpp_authentication *auth)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
|
|
ssid = wpa_config_add_network(wpa_s->conf);
|
|
if (!ssid)
|
|
return NULL;
|
|
wpas_notify_network_added(wpa_s, ssid);
|
|
wpa_config_set_network_defaults(ssid);
|
|
ssid->disabled = 1;
|
|
|
|
ssid->ssid = os_malloc(auth->ssid_len);
|
|
if (!ssid->ssid)
|
|
goto fail;
|
|
os_memcpy(ssid->ssid, auth->ssid, auth->ssid_len);
|
|
ssid->ssid_len = auth->ssid_len;
|
|
|
|
if (auth->connector) {
|
|
ssid->key_mgmt = WPA_KEY_MGMT_DPP;
|
|
ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
|
|
ssid->dpp_connector = os_strdup(auth->connector);
|
|
if (!ssid->dpp_connector)
|
|
goto fail;
|
|
}
|
|
|
|
if (auth->c_sign_key) {
|
|
ssid->dpp_csign = os_malloc(wpabuf_len(auth->c_sign_key));
|
|
if (!ssid->dpp_csign)
|
|
goto fail;
|
|
os_memcpy(ssid->dpp_csign, wpabuf_head(auth->c_sign_key),
|
|
wpabuf_len(auth->c_sign_key));
|
|
ssid->dpp_csign_len = wpabuf_len(auth->c_sign_key);
|
|
}
|
|
|
|
if (auth->net_access_key) {
|
|
ssid->dpp_netaccesskey =
|
|
os_malloc(wpabuf_len(auth->net_access_key));
|
|
if (!ssid->dpp_netaccesskey)
|
|
goto fail;
|
|
os_memcpy(ssid->dpp_netaccesskey,
|
|
wpabuf_head(auth->net_access_key),
|
|
wpabuf_len(auth->net_access_key));
|
|
ssid->dpp_netaccesskey_len = wpabuf_len(auth->net_access_key);
|
|
ssid->dpp_netaccesskey_expiry = auth->net_access_key_expiry;
|
|
}
|
|
|
|
if (!auth->connector) {
|
|
ssid->key_mgmt = 0;
|
|
if (auth->akm == DPP_AKM_PSK || auth->akm == DPP_AKM_PSK_SAE)
|
|
ssid->key_mgmt |= WPA_KEY_MGMT_PSK |
|
|
WPA_KEY_MGMT_PSK_SHA256 | WPA_KEY_MGMT_FT_PSK;
|
|
if (auth->akm == DPP_AKM_SAE || auth->akm == DPP_AKM_PSK_SAE)
|
|
ssid->key_mgmt |= WPA_KEY_MGMT_SAE |
|
|
WPA_KEY_MGMT_FT_SAE;
|
|
ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
|
|
if (auth->passphrase[0]) {
|
|
if (wpa_config_set_quoted(ssid, "psk",
|
|
auth->passphrase) < 0)
|
|
goto fail;
|
|
wpa_config_update_psk(ssid);
|
|
ssid->export_keys = 1;
|
|
} else {
|
|
ssid->psk_set = auth->psk_set;
|
|
os_memcpy(ssid->psk, auth->psk, PMK_LEN);
|
|
}
|
|
}
|
|
|
|
return ssid;
|
|
fail:
|
|
wpas_notify_network_removed(wpa_s, ssid);
|
|
wpa_config_remove_network(wpa_s->conf, ssid->id);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void wpas_dpp_process_config(struct wpa_supplicant *wpa_s,
|
|
struct dpp_authentication *auth)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
|
|
if (wpa_s->conf->dpp_config_processing < 1)
|
|
return;
|
|
|
|
ssid = wpas_dpp_add_network(wpa_s, auth);
|
|
if (!ssid)
|
|
return;
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_NETWORK_ID "%d", ssid->id);
|
|
if (wpa_s->conf->dpp_config_processing < 2)
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Trying to connect to the new network");
|
|
ssid->disabled = 0;
|
|
wpa_s->disconnected = 0;
|
|
wpa_s->reassociate = 1;
|
|
wpa_s->scan_runs = 0;
|
|
wpa_s->normal_scans = 0;
|
|
wpa_supplicant_cancel_sched_scan(wpa_s);
|
|
wpa_supplicant_req_scan(wpa_s, 0, 0);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_handle_config_obj(struct wpa_supplicant *wpa_s,
|
|
struct dpp_authentication *auth)
|
|
{
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED);
|
|
if (auth->ssid_len)
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID "%s",
|
|
wpa_ssid_txt(auth->ssid, auth->ssid_len));
|
|
if (auth->connector) {
|
|
/* TODO: Save the Connector and consider using a command
|
|
* to fetch the value instead of sending an event with
|
|
* it. The Connector could end up being larger than what
|
|
* most clients are ready to receive as an event
|
|
* message. */
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONNECTOR "%s",
|
|
auth->connector);
|
|
}
|
|
if (auth->c_sign_key) {
|
|
char *hex;
|
|
size_t hexlen;
|
|
|
|
hexlen = 2 * wpabuf_len(auth->c_sign_key) + 1;
|
|
hex = os_malloc(hexlen);
|
|
if (hex) {
|
|
wpa_snprintf_hex(hex, hexlen,
|
|
wpabuf_head(auth->c_sign_key),
|
|
wpabuf_len(auth->c_sign_key));
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_C_SIGN_KEY "%s",
|
|
hex);
|
|
os_free(hex);
|
|
}
|
|
}
|
|
if (auth->net_access_key) {
|
|
char *hex;
|
|
size_t hexlen;
|
|
|
|
hexlen = 2 * wpabuf_len(auth->net_access_key) + 1;
|
|
hex = os_malloc(hexlen);
|
|
if (hex) {
|
|
wpa_snprintf_hex(hex, hexlen,
|
|
wpabuf_head(auth->net_access_key),
|
|
wpabuf_len(auth->net_access_key));
|
|
if (auth->net_access_key_expiry)
|
|
wpa_msg(wpa_s, MSG_INFO,
|
|
DPP_EVENT_NET_ACCESS_KEY "%s %lu", hex,
|
|
(long unsigned)
|
|
auth->net_access_key_expiry);
|
|
else
|
|
wpa_msg(wpa_s, MSG_INFO,
|
|
DPP_EVENT_NET_ACCESS_KEY "%s", hex);
|
|
os_free(hex);
|
|
}
|
|
}
|
|
|
|
wpas_dpp_process_config(wpa_s, auth);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
|
|
enum gas_query_result result,
|
|
const struct wpabuf *adv_proto,
|
|
const struct wpabuf *resp, u16 status_code)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
const u8 *pos;
|
|
struct dpp_authentication *auth = wpa_s->dpp_auth;
|
|
|
|
wpa_s->dpp_gas_dialog_token = -1;
|
|
|
|
if (!auth || !auth->auth_success) {
|
|
wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
|
|
return;
|
|
}
|
|
if (!resp || status_code != WLAN_STATUS_SUCCESS) {
|
|
wpa_printf(MSG_DEBUG, "DPP: GAS query did not succeed");
|
|
goto fail;
|
|
}
|
|
|
|
wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response adv_proto",
|
|
adv_proto);
|
|
wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response (GAS response)",
|
|
resp);
|
|
|
|
if (wpabuf_len(adv_proto) != 10 ||
|
|
!(pos = wpabuf_head(adv_proto)) ||
|
|
pos[0] != WLAN_EID_ADV_PROTO ||
|
|
pos[1] != 8 ||
|
|
pos[3] != WLAN_EID_VENDOR_SPECIFIC ||
|
|
pos[4] != 5 ||
|
|
WPA_GET_BE24(&pos[5]) != OUI_WFA ||
|
|
pos[8] != 0x1a ||
|
|
pos[9] != 1) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Not a DPP Advertisement Protocol ID");
|
|
goto fail;
|
|
}
|
|
|
|
if (dpp_conf_resp_rx(auth, resp) < 0) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed");
|
|
goto fail;
|
|
}
|
|
|
|
wpas_dpp_handle_config_obj(wpa_s, auth);
|
|
dpp_auth_deinit(wpa_s->dpp_auth);
|
|
wpa_s->dpp_auth = NULL;
|
|
return;
|
|
|
|
fail:
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
|
|
dpp_auth_deinit(wpa_s->dpp_auth);
|
|
wpa_s->dpp_auth = NULL;
|
|
}
|
|
|
|
|
|
static void wpas_dpp_start_gas_client(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct dpp_authentication *auth = wpa_s->dpp_auth;
|
|
struct wpabuf *buf, *conf_req;
|
|
char json[100];
|
|
int res;
|
|
|
|
wpa_s->dpp_gas_client = 1;
|
|
os_snprintf(json, sizeof(json),
|
|
"{\"name\":\"Test\","
|
|
"\"wi-fi_tech\":\"infra\","
|
|
"\"netRole\":\"%s\"}",
|
|
wpa_s->dpp_netrole_ap ? "ap" : "sta");
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
if (dpp_test == DPP_TEST_INVALID_CONFIG_ATTR_OBJ_CONF_REQ) {
|
|
wpa_printf(MSG_INFO, "DPP: TESTING - invalid Config Attr");
|
|
json[29] = 'k'; /* replace "infra" with "knfra" */
|
|
}
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
wpa_printf(MSG_DEBUG, "DPP: GAS Config Attributes: %s", json);
|
|
|
|
offchannel_send_action_done(wpa_s);
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
|
|
conf_req = dpp_build_conf_req(auth, json);
|
|
if (!conf_req) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: No configuration request data available");
|
|
return;
|
|
}
|
|
|
|
buf = gas_build_initial_req(0, 10 + 2 + wpabuf_len(conf_req));
|
|
if (!buf) {
|
|
wpabuf_free(conf_req);
|
|
return;
|
|
}
|
|
|
|
/* Advertisement Protocol IE */
|
|
wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
|
|
wpabuf_put_u8(buf, 8); /* Length */
|
|
wpabuf_put_u8(buf, 0x7f);
|
|
wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
|
|
wpabuf_put_u8(buf, 5);
|
|
wpabuf_put_be24(buf, OUI_WFA);
|
|
wpabuf_put_u8(buf, DPP_OUI_TYPE);
|
|
wpabuf_put_u8(buf, 0x01);
|
|
|
|
/* GAS Query */
|
|
wpabuf_put_le16(buf, wpabuf_len(conf_req));
|
|
wpabuf_put_buf(buf, conf_req);
|
|
wpabuf_free(conf_req);
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: GAS request to " MACSTR " (freq %u MHz)",
|
|
MAC2STR(auth->peer_mac_addr), auth->curr_freq);
|
|
|
|
res = gas_query_req(wpa_s->gas, auth->peer_mac_addr, auth->curr_freq,
|
|
1, buf, wpas_dpp_gas_resp_cb, wpa_s);
|
|
if (res < 0) {
|
|
wpa_msg(wpa_s, MSG_DEBUG, "GAS: Failed to send Query Request");
|
|
wpabuf_free(buf);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: GAS query started with dialog token %u", res);
|
|
wpa_s->dpp_gas_dialog_token = res;
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "DPP: Authentication succeeded");
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_SUCCESS "init=%d", initiator);
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
if (dpp_test == DPP_TEST_STOP_AT_AUTH_CONF) {
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: TESTING - stop at Authentication Confirm");
|
|
if (wpa_s->dpp_auth->configurator) {
|
|
/* Prevent GAS response */
|
|
wpa_s->dpp_auth->auth_success = 0;
|
|
}
|
|
return;
|
|
}
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
|
|
if (wpa_s->dpp_auth->configurator)
|
|
wpas_dpp_start_gas_server(wpa_s);
|
|
else
|
|
wpas_dpp_start_gas_client(wpa_s);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_rx_auth_resp(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *hdr, const u8 *buf, size_t len,
|
|
unsigned int freq)
|
|
{
|
|
struct dpp_authentication *auth = wpa_s->dpp_auth;
|
|
struct wpabuf *msg;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Authentication Response from " MACSTR
|
|
" (freq %u MHz)", MAC2STR(src), freq);
|
|
|
|
if (!auth) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: No DPP Authentication in progress - drop");
|
|
return;
|
|
}
|
|
|
|
if (!is_zero_ether_addr(auth->peer_mac_addr) &&
|
|
os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
|
|
wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
|
|
MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
|
|
return;
|
|
}
|
|
|
|
eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
|
|
|
|
if (auth->curr_freq != freq && auth->neg_freq == freq) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Responder accepted request for different negotiation channel");
|
|
auth->curr_freq = freq;
|
|
}
|
|
|
|
eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
|
|
msg = dpp_auth_resp_rx(auth, hdr, buf, len);
|
|
if (!msg) {
|
|
if (auth->auth_resp_status == DPP_STATUS_RESPONSE_PENDING) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Start wait for full response");
|
|
offchannel_send_action_done(wpa_s);
|
|
wpas_dpp_listen_start(wpa_s, auth->curr_freq);
|
|
return;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "DPP: No confirm generated");
|
|
return;
|
|
}
|
|
os_memcpy(auth->peer_mac_addr, src, ETH_ALEN);
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(src), auth->curr_freq, DPP_PA_AUTHENTICATION_CONF);
|
|
offchannel_send_action(wpa_s, auth->curr_freq,
|
|
src, wpa_s->own_addr, broadcast,
|
|
wpabuf_head(msg), wpabuf_len(msg),
|
|
500, wpas_dpp_tx_status, 0);
|
|
wpabuf_free(msg);
|
|
wpa_s->dpp_auth_ok_on_ack = 1;
|
|
}
|
|
|
|
|
|
static void wpas_dpp_rx_auth_conf(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *hdr, const u8 *buf, size_t len)
|
|
{
|
|
struct dpp_authentication *auth = wpa_s->dpp_auth;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Authentication Confirmation from " MACSTR,
|
|
MAC2STR(src));
|
|
|
|
if (!auth) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: No DPP Authentication in progress - drop");
|
|
return;
|
|
}
|
|
|
|
if (os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
|
|
wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
|
|
MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
|
|
return;
|
|
}
|
|
|
|
if (dpp_auth_conf_rx(auth, hdr, buf, len) < 0) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Authentication failed");
|
|
return;
|
|
}
|
|
|
|
wpas_dpp_auth_success(wpa_s, 0);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_rx_peer_disc_resp(struct wpa_supplicant *wpa_s,
|
|
const u8 *src,
|
|
const u8 *buf, size_t len)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
const u8 *connector, *trans_id, *status;
|
|
u16 connector_len, trans_id_len, status_len;
|
|
struct dpp_introduction intro;
|
|
struct rsn_pmksa_cache_entry *entry;
|
|
struct os_time now;
|
|
struct os_reltime rnow;
|
|
os_time_t expiry;
|
|
unsigned int seconds;
|
|
enum dpp_status_error res;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Peer Discovery Response from " MACSTR,
|
|
MAC2STR(src));
|
|
if (is_zero_ether_addr(wpa_s->dpp_intro_bssid) ||
|
|
os_memcmp(src, wpa_s->dpp_intro_bssid, ETH_ALEN) != 0) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Not waiting for response from "
|
|
MACSTR " - drop", MAC2STR(src));
|
|
return;
|
|
}
|
|
offchannel_send_action_done(wpa_s);
|
|
|
|
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
|
|
if (ssid == wpa_s->dpp_intro_network)
|
|
break;
|
|
}
|
|
if (!ssid || !ssid->dpp_connector || !ssid->dpp_netaccesskey ||
|
|
!ssid->dpp_csign) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Profile not found for network introduction");
|
|
return;
|
|
}
|
|
|
|
trans_id = dpp_get_attr(buf, len, DPP_ATTR_TRANSACTION_ID,
|
|
&trans_id_len);
|
|
if (!trans_id || trans_id_len != 1) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Peer did not include Transaction ID");
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
|
|
" fail=missing_transaction_id", MAC2STR(src));
|
|
goto fail;
|
|
}
|
|
if (trans_id[0] != TRANSACTION_ID) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Ignore frame with unexpected Transaction ID %u",
|
|
trans_id[0]);
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
|
|
" fail=transaction_id_mismatch", MAC2STR(src));
|
|
goto fail;
|
|
}
|
|
|
|
status = dpp_get_attr(buf, len, DPP_ATTR_STATUS, &status_len);
|
|
if (!status || status_len != 1) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Peer did not include Status");
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
|
|
" fail=missing_status", MAC2STR(src));
|
|
goto fail;
|
|
}
|
|
if (status[0] != DPP_STATUS_OK) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Peer rejected network introduction: Status %u",
|
|
status[0]);
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
|
|
" status=%u", MAC2STR(src), status[0]);
|
|
goto fail;
|
|
}
|
|
|
|
connector = dpp_get_attr(buf, len, DPP_ATTR_CONNECTOR, &connector_len);
|
|
if (!connector) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Peer did not include its Connector");
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
|
|
" fail=missing_connector", MAC2STR(src));
|
|
goto fail;
|
|
}
|
|
|
|
res = dpp_peer_intro(&intro, ssid->dpp_connector,
|
|
ssid->dpp_netaccesskey,
|
|
ssid->dpp_netaccesskey_len,
|
|
ssid->dpp_csign,
|
|
ssid->dpp_csign_len,
|
|
connector, connector_len, &expiry);
|
|
if (res != DPP_STATUS_OK) {
|
|
wpa_printf(MSG_INFO,
|
|
"DPP: Network Introduction protocol resulted in failure");
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
|
|
" fail=peer_connector_validation_failed", MAC2STR(src));
|
|
goto fail;
|
|
}
|
|
|
|
entry = os_zalloc(sizeof(*entry));
|
|
if (!entry)
|
|
goto fail;
|
|
os_memcpy(entry->aa, src, ETH_ALEN);
|
|
os_memcpy(entry->pmkid, intro.pmkid, PMKID_LEN);
|
|
os_memcpy(entry->pmk, intro.pmk, intro.pmk_len);
|
|
entry->pmk_len = intro.pmk_len;
|
|
entry->akmp = WPA_KEY_MGMT_DPP;
|
|
if (expiry) {
|
|
os_get_time(&now);
|
|
seconds = expiry - now.sec;
|
|
} else {
|
|
seconds = 86400 * 7;
|
|
}
|
|
os_get_reltime(&rnow);
|
|
entry->expiration = rnow.sec + seconds;
|
|
entry->reauth_time = rnow.sec + seconds;
|
|
entry->network_ctx = ssid;
|
|
wpa_sm_pmksa_cache_add_entry(wpa_s->wpa, entry);
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
|
|
" status=%u", MAC2STR(src), status[0]);
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Try connection again after successful network introduction");
|
|
if (wpa_supplicant_fast_associate(wpa_s) != 1) {
|
|
wpa_supplicant_cancel_sched_scan(wpa_s);
|
|
wpa_supplicant_req_scan(wpa_s, 0, 0);
|
|
}
|
|
fail:
|
|
os_memset(&intro, 0, sizeof(intro));
|
|
}
|
|
|
|
|
|
static int wpas_dpp_allow_ir(struct wpa_supplicant *wpa_s, unsigned int freq)
|
|
{
|
|
int i, j;
|
|
|
|
if (!wpa_s->hw.modes)
|
|
return -1;
|
|
|
|
for (i = 0; i < wpa_s->hw.num_modes; i++) {
|
|
struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
|
|
|
|
for (j = 0; j < mode->num_channels; j++) {
|
|
struct hostapd_channel_data *chan = &mode->channels[j];
|
|
|
|
if (chan->freq != (int) freq)
|
|
continue;
|
|
|
|
if (chan->flag & (HOSTAPD_CHAN_DISABLED |
|
|
HOSTAPD_CHAN_NO_IR |
|
|
HOSTAPD_CHAN_RADAR))
|
|
continue;
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Frequency %u MHz not supported or does not allow PKEX initiation in the current channel list",
|
|
freq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_dpp_pkex_next_channel(struct wpa_supplicant *wpa_s,
|
|
struct dpp_pkex *pkex)
|
|
{
|
|
if (pkex->freq == 2437)
|
|
pkex->freq = 5745;
|
|
else if (pkex->freq == 5745)
|
|
pkex->freq = 5220;
|
|
else if (pkex->freq == 5220)
|
|
pkex->freq = 60480;
|
|
else
|
|
return -1; /* no more channels to try */
|
|
|
|
if (wpas_dpp_allow_ir(wpa_s, pkex->freq) == 1) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Try to initiate on %u MHz",
|
|
pkex->freq);
|
|
return 0;
|
|
}
|
|
|
|
/* Could not use this channel - try the next one */
|
|
return wpas_dpp_pkex_next_channel(wpa_s, pkex);
|
|
}
|
|
|
|
|
|
static void wpas_dpp_pkex_retry_timeout(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
struct dpp_pkex *pkex = wpa_s->dpp_pkex;
|
|
|
|
if (!pkex || !pkex->exchange_req)
|
|
return;
|
|
if (pkex->exch_req_tries >= 5) {
|
|
if (wpas_dpp_pkex_next_channel(wpa_s, pkex) < 0) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
|
|
"No response from PKEX peer");
|
|
dpp_pkex_free(pkex);
|
|
wpa_s->dpp_pkex = NULL;
|
|
return;
|
|
}
|
|
pkex->exch_req_tries = 0;
|
|
}
|
|
|
|
pkex->exch_req_tries++;
|
|
wpa_printf(MSG_DEBUG, "DPP: Retransmit PKEX Exchange Request (try %u)",
|
|
pkex->exch_req_tries);
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(broadcast), pkex->freq, DPP_PA_PKEX_EXCHANGE_REQ);
|
|
offchannel_send_action(wpa_s, pkex->freq, broadcast,
|
|
wpa_s->own_addr, broadcast,
|
|
wpabuf_head(pkex->exchange_req),
|
|
wpabuf_len(pkex->exchange_req),
|
|
pkex->exch_req_wait_time,
|
|
wpas_dpp_tx_pkex_status, 0);
|
|
}
|
|
|
|
|
|
static void
|
|
wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq, const u8 *dst,
|
|
const u8 *src, const u8 *bssid,
|
|
const u8 *data, size_t data_len,
|
|
enum offchannel_send_action_result result)
|
|
{
|
|
const char *res_txt;
|
|
struct dpp_pkex *pkex = wpa_s->dpp_pkex;
|
|
|
|
res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
|
|
(result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
|
|
"FAILED");
|
|
wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
|
|
" result=%s (PKEX)",
|
|
freq, MAC2STR(dst), res_txt);
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
|
|
" freq=%u result=%s", MAC2STR(dst), freq, res_txt);
|
|
|
|
if (!pkex) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Ignore TX status since there is no ongoing PKEX exchange");
|
|
return;
|
|
}
|
|
|
|
if (pkex->failed) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Terminate PKEX exchange due to an earlier error");
|
|
if (pkex->t > pkex->own_bi->pkex_t)
|
|
pkex->own_bi->pkex_t = pkex->t;
|
|
dpp_pkex_free(pkex);
|
|
wpa_s->dpp_pkex = NULL;
|
|
return;
|
|
}
|
|
|
|
if (pkex->exch_req_wait_time && pkex->exchange_req) {
|
|
/* Wait for PKEX Exchange Response frame and retry request if
|
|
* no response is seen. */
|
|
eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
|
|
eloop_register_timeout(pkex->exch_req_wait_time / 1000,
|
|
(pkex->exch_req_wait_time % 1000) * 1000,
|
|
wpas_dpp_pkex_retry_timeout, wpa_s,
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
wpas_dpp_rx_pkex_exchange_req(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *buf, size_t len, unsigned int freq)
|
|
{
|
|
struct wpabuf *msg;
|
|
unsigned int wait_time;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Request from " MACSTR,
|
|
MAC2STR(src));
|
|
|
|
/* TODO: Support multiple PKEX codes by iterating over all the enabled
|
|
* values here */
|
|
|
|
if (!wpa_s->dpp_pkex_code || !wpa_s->dpp_pkex_bi) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: No PKEX code configured - ignore request");
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->dpp_pkex) {
|
|
/* TODO: Support parallel operations */
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Already in PKEX session - ignore new request");
|
|
return;
|
|
}
|
|
|
|
wpa_s->dpp_pkex = dpp_pkex_rx_exchange_req(wpa_s, wpa_s->dpp_pkex_bi,
|
|
wpa_s->own_addr, src,
|
|
wpa_s->dpp_pkex_identifier,
|
|
wpa_s->dpp_pkex_code,
|
|
buf, len);
|
|
if (!wpa_s->dpp_pkex) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Failed to process the request - ignore it");
|
|
return;
|
|
}
|
|
|
|
msg = wpa_s->dpp_pkex->exchange_resp;
|
|
wait_time = wpa_s->max_remain_on_chan;
|
|
if (wait_time > 2000)
|
|
wait_time = 2000;
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(src), freq, DPP_PA_PKEX_EXCHANGE_RESP);
|
|
offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
|
|
broadcast,
|
|
wpabuf_head(msg), wpabuf_len(msg),
|
|
wait_time, wpas_dpp_tx_pkex_status, 0);
|
|
}
|
|
|
|
|
|
static void
|
|
wpas_dpp_rx_pkex_exchange_resp(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *buf, size_t len, unsigned int freq)
|
|
{
|
|
struct wpabuf *msg;
|
|
unsigned int wait_time;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Response from " MACSTR,
|
|
MAC2STR(src));
|
|
|
|
/* TODO: Support multiple PKEX codes by iterating over all the enabled
|
|
* values here */
|
|
|
|
if (!wpa_s->dpp_pkex || !wpa_s->dpp_pkex->initiator ||
|
|
wpa_s->dpp_pkex->exchange_done) {
|
|
wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
|
|
return;
|
|
}
|
|
|
|
eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
|
|
wpa_s->dpp_pkex->exch_req_wait_time = 0;
|
|
|
|
msg = dpp_pkex_rx_exchange_resp(wpa_s->dpp_pkex, src, buf, len);
|
|
if (!msg) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Request to " MACSTR,
|
|
MAC2STR(src));
|
|
|
|
wait_time = wpa_s->max_remain_on_chan;
|
|
if (wait_time > 2000)
|
|
wait_time = 2000;
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_REQ);
|
|
offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
|
|
broadcast,
|
|
wpabuf_head(msg), wpabuf_len(msg),
|
|
wait_time, wpas_dpp_tx_pkex_status, 0);
|
|
wpabuf_free(msg);
|
|
}
|
|
|
|
|
|
static struct dpp_bootstrap_info *
|
|
wpas_dpp_pkex_finish(struct wpa_supplicant *wpa_s, const u8 *peer,
|
|
unsigned int freq)
|
|
{
|
|
struct dpp_pkex *pkex = wpa_s->dpp_pkex;
|
|
struct dpp_bootstrap_info *bi;
|
|
|
|
bi = os_zalloc(sizeof(*bi));
|
|
if (!bi)
|
|
return NULL;
|
|
bi->id = wpas_dpp_next_id(wpa_s);
|
|
bi->type = DPP_BOOTSTRAP_PKEX;
|
|
os_memcpy(bi->mac_addr, peer, ETH_ALEN);
|
|
bi->num_freq = 1;
|
|
bi->freq[0] = freq;
|
|
bi->curve = pkex->own_bi->curve;
|
|
bi->pubkey = pkex->peer_bootstrap_key;
|
|
pkex->peer_bootstrap_key = NULL;
|
|
dpp_pkex_free(pkex);
|
|
wpa_s->dpp_pkex = NULL;
|
|
if (dpp_bootstrap_key_hash(bi) < 0) {
|
|
dpp_bootstrap_info_free(bi);
|
|
return NULL;
|
|
}
|
|
dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
|
|
return bi;
|
|
}
|
|
|
|
|
|
static void
|
|
wpas_dpp_rx_pkex_commit_reveal_req(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *hdr, const u8 *buf, size_t len,
|
|
unsigned int freq)
|
|
{
|
|
struct wpabuf *msg;
|
|
unsigned int wait_time;
|
|
struct dpp_pkex *pkex = wpa_s->dpp_pkex;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Request from " MACSTR,
|
|
MAC2STR(src));
|
|
|
|
if (!pkex || pkex->initiator || !pkex->exchange_done) {
|
|
wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
|
|
return;
|
|
}
|
|
|
|
msg = dpp_pkex_rx_commit_reveal_req(pkex, hdr, buf, len);
|
|
if (!msg) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Failed to process the request");
|
|
if (pkex->failed) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Terminate PKEX exchange");
|
|
if (pkex->t > pkex->own_bi->pkex_t)
|
|
pkex->own_bi->pkex_t = pkex->t;
|
|
dpp_pkex_free(wpa_s->dpp_pkex);
|
|
wpa_s->dpp_pkex = NULL;
|
|
}
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Response to "
|
|
MACSTR, MAC2STR(src));
|
|
|
|
wait_time = wpa_s->max_remain_on_chan;
|
|
if (wait_time > 2000)
|
|
wait_time = 2000;
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_RESP);
|
|
offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
|
|
broadcast,
|
|
wpabuf_head(msg), wpabuf_len(msg),
|
|
wait_time, wpas_dpp_tx_pkex_status, 0);
|
|
wpabuf_free(msg);
|
|
|
|
wpas_dpp_pkex_finish(wpa_s, src, freq);
|
|
}
|
|
|
|
|
|
static void
|
|
wpas_dpp_rx_pkex_commit_reveal_resp(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *hdr, const u8 *buf, size_t len,
|
|
unsigned int freq)
|
|
{
|
|
int res;
|
|
struct dpp_bootstrap_info *bi;
|
|
struct dpp_pkex *pkex = wpa_s->dpp_pkex;
|
|
char cmd[500];
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Response from " MACSTR,
|
|
MAC2STR(src));
|
|
|
|
if (!pkex || !pkex->initiator || !pkex->exchange_done) {
|
|
wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
|
|
return;
|
|
}
|
|
|
|
res = dpp_pkex_rx_commit_reveal_resp(pkex, hdr, buf, len);
|
|
if (res < 0) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
|
|
return;
|
|
}
|
|
|
|
bi = wpas_dpp_pkex_finish(wpa_s, src, freq);
|
|
if (!bi)
|
|
return;
|
|
|
|
os_snprintf(cmd, sizeof(cmd), " peer=%u %s",
|
|
bi->id,
|
|
wpa_s->dpp_pkex_auth_cmd ? wpa_s->dpp_pkex_auth_cmd : "");
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Start authentication after PKEX with parameters: %s",
|
|
cmd);
|
|
if (wpas_dpp_auth_init(wpa_s, cmd) < 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Authentication initialization failed");
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
void wpas_dpp_rx_action(struct wpa_supplicant *wpa_s, const u8 *src,
|
|
const u8 *buf, size_t len, unsigned int freq)
|
|
{
|
|
u8 crypto_suite;
|
|
enum dpp_public_action_frame_type type;
|
|
const u8 *hdr;
|
|
unsigned int pkex_t;
|
|
|
|
if (len < DPP_HDR_LEN)
|
|
return;
|
|
if (WPA_GET_BE24(buf) != OUI_WFA || buf[3] != DPP_OUI_TYPE)
|
|
return;
|
|
hdr = buf;
|
|
buf += 4;
|
|
len -= 4;
|
|
crypto_suite = *buf++;
|
|
type = *buf++;
|
|
len -= 2;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Received DPP Public Action frame crypto suite %u type %d from "
|
|
MACSTR " freq=%u",
|
|
crypto_suite, type, MAC2STR(src), freq);
|
|
if (crypto_suite != 1) {
|
|
wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u",
|
|
crypto_suite);
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
|
|
" freq=%u type=%d ignore=unsupported-crypto-suite",
|
|
MAC2STR(src), freq, type);
|
|
return;
|
|
}
|
|
wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len);
|
|
if (dpp_check_attrs(buf, len) < 0) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
|
|
" freq=%u type=%d ignore=invalid-attributes",
|
|
MAC2STR(src), freq, type);
|
|
return;
|
|
}
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(src), freq, type);
|
|
|
|
switch (type) {
|
|
case DPP_PA_AUTHENTICATION_REQ:
|
|
wpas_dpp_rx_auth_req(wpa_s, src, hdr, buf, len, freq);
|
|
break;
|
|
case DPP_PA_AUTHENTICATION_RESP:
|
|
wpas_dpp_rx_auth_resp(wpa_s, src, hdr, buf, len, freq);
|
|
break;
|
|
case DPP_PA_AUTHENTICATION_CONF:
|
|
wpas_dpp_rx_auth_conf(wpa_s, src, hdr, buf, len);
|
|
break;
|
|
case DPP_PA_PEER_DISCOVERY_RESP:
|
|
wpas_dpp_rx_peer_disc_resp(wpa_s, src, buf, len);
|
|
break;
|
|
case DPP_PA_PKEX_EXCHANGE_REQ:
|
|
wpas_dpp_rx_pkex_exchange_req(wpa_s, src, buf, len, freq);
|
|
break;
|
|
case DPP_PA_PKEX_EXCHANGE_RESP:
|
|
wpas_dpp_rx_pkex_exchange_resp(wpa_s, src, buf, len, freq);
|
|
break;
|
|
case DPP_PA_PKEX_COMMIT_REVEAL_REQ:
|
|
wpas_dpp_rx_pkex_commit_reveal_req(wpa_s, src, hdr, buf, len,
|
|
freq);
|
|
break;
|
|
case DPP_PA_PKEX_COMMIT_REVEAL_RESP:
|
|
wpas_dpp_rx_pkex_commit_reveal_resp(wpa_s, src, hdr, buf, len,
|
|
freq);
|
|
break;
|
|
default:
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Ignored unsupported frame subtype %d", type);
|
|
break;
|
|
}
|
|
|
|
if (wpa_s->dpp_pkex)
|
|
pkex_t = wpa_s->dpp_pkex->t;
|
|
else if (wpa_s->dpp_pkex_bi)
|
|
pkex_t = wpa_s->dpp_pkex_bi->pkex_t;
|
|
else
|
|
pkex_t = 0;
|
|
if (pkex_t >= PKEX_COUNTER_T_LIMIT) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_PKEX_T_LIMIT "id=0");
|
|
wpas_dpp_pkex_remove(wpa_s, "*");
|
|
}
|
|
}
|
|
|
|
|
|
static struct wpabuf *
|
|
wpas_dpp_gas_req_handler(void *ctx, const u8 *sa, const u8 *query,
|
|
size_t query_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct dpp_authentication *auth = wpa_s->dpp_auth;
|
|
struct wpabuf *resp;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: GAS request from " MACSTR,
|
|
MAC2STR(sa));
|
|
if (!auth || !auth->auth_success ||
|
|
os_memcmp(sa, auth->peer_mac_addr, ETH_ALEN) != 0) {
|
|
wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
|
|
return NULL;
|
|
}
|
|
wpa_hexdump(MSG_DEBUG,
|
|
"DPP: Received Configuration Request (GAS Query Request)",
|
|
query, query_len);
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_REQ_RX "src=" MACSTR,
|
|
MAC2STR(sa));
|
|
resp = dpp_conf_req_rx(auth, query, query_len);
|
|
if (!resp)
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
|
|
auth->conf_resp = resp;
|
|
return resp;
|
|
}
|
|
|
|
|
|
static void
|
|
wpas_dpp_gas_status_handler(void *ctx, struct wpabuf *resp, int ok)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct dpp_authentication *auth = wpa_s->dpp_auth;
|
|
|
|
if (!auth) {
|
|
wpabuf_free(resp);
|
|
return;
|
|
}
|
|
if (auth->conf_resp != resp) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Ignore GAS status report (ok=%d) for unknown response",
|
|
ok);
|
|
wpabuf_free(resp);
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Configuration exchange completed (ok=%d)",
|
|
ok);
|
|
eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
|
|
offchannel_send_action_done(wpa_s);
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
if (ok)
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_SENT);
|
|
else
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
|
|
dpp_auth_deinit(wpa_s->dpp_auth);
|
|
wpa_s->dpp_auth = NULL;
|
|
wpabuf_free(resp);
|
|
}
|
|
|
|
|
|
static unsigned int wpas_dpp_next_configurator_id(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct dpp_configurator *conf;
|
|
unsigned int max_id = 0;
|
|
|
|
dl_list_for_each(conf, &wpa_s->dpp_configurator,
|
|
struct dpp_configurator, list) {
|
|
if (conf->id > max_id)
|
|
max_id = conf->id;
|
|
}
|
|
return max_id + 1;
|
|
}
|
|
|
|
|
|
int wpas_dpp_configurator_add(struct wpa_supplicant *wpa_s, const char *cmd)
|
|
{
|
|
char *curve = NULL;
|
|
char *key = NULL;
|
|
u8 *privkey = NULL;
|
|
size_t privkey_len = 0;
|
|
int ret = -1;
|
|
struct dpp_configurator *conf = NULL;
|
|
|
|
curve = get_param(cmd, " curve=");
|
|
key = get_param(cmd, " key=");
|
|
|
|
if (key) {
|
|
privkey_len = os_strlen(key) / 2;
|
|
privkey = os_malloc(privkey_len);
|
|
if (!privkey ||
|
|
hexstr2bin(key, privkey, privkey_len) < 0)
|
|
goto fail;
|
|
}
|
|
|
|
conf = dpp_keygen_configurator(curve, privkey, privkey_len);
|
|
if (!conf)
|
|
goto fail;
|
|
|
|
conf->id = wpas_dpp_next_configurator_id(wpa_s);
|
|
dl_list_add(&wpa_s->dpp_configurator, &conf->list);
|
|
ret = conf->id;
|
|
conf = NULL;
|
|
fail:
|
|
os_free(curve);
|
|
str_clear_free(key);
|
|
bin_clear_free(privkey, privkey_len);
|
|
dpp_configurator_free(conf);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int dpp_configurator_del(struct wpa_supplicant *wpa_s, unsigned int id)
|
|
{
|
|
struct dpp_configurator *conf, *tmp;
|
|
int found = 0;
|
|
|
|
dl_list_for_each_safe(conf, tmp, &wpa_s->dpp_configurator,
|
|
struct dpp_configurator, list) {
|
|
if (id && conf->id != id)
|
|
continue;
|
|
found = 1;
|
|
dl_list_del(&conf->list);
|
|
dpp_configurator_free(conf);
|
|
}
|
|
|
|
if (id == 0)
|
|
return 0; /* flush succeeds regardless of entries found */
|
|
return found ? 0 : -1;
|
|
}
|
|
|
|
|
|
int wpas_dpp_configurator_remove(struct wpa_supplicant *wpa_s, const char *id)
|
|
{
|
|
unsigned int id_val;
|
|
|
|
if (os_strcmp(id, "*") == 0) {
|
|
id_val = 0;
|
|
} else {
|
|
id_val = atoi(id);
|
|
if (id_val == 0)
|
|
return -1;
|
|
}
|
|
|
|
return dpp_configurator_del(wpa_s, id_val);
|
|
}
|
|
|
|
|
|
int wpas_dpp_configurator_sign(struct wpa_supplicant *wpa_s, const char *cmd)
|
|
{
|
|
struct dpp_authentication *auth;
|
|
int ret = -1;
|
|
char *curve = NULL;
|
|
|
|
auth = os_zalloc(sizeof(*auth));
|
|
if (!auth)
|
|
return -1;
|
|
|
|
curve = get_param(cmd, " curve=");
|
|
wpas_dpp_set_configurator(wpa_s, auth, cmd);
|
|
|
|
if (dpp_configurator_own_config(auth, curve, 0) == 0) {
|
|
wpas_dpp_handle_config_obj(wpa_s, auth);
|
|
ret = 0;
|
|
}
|
|
|
|
dpp_auth_deinit(auth);
|
|
os_free(curve);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpas_dpp_configurator_get_key(struct wpa_supplicant *wpa_s, unsigned int id,
|
|
char *buf, size_t buflen)
|
|
{
|
|
struct dpp_configurator *conf;
|
|
|
|
conf = dpp_configurator_get_id(wpa_s, id);
|
|
if (!conf)
|
|
return -1;
|
|
|
|
return dpp_configurator_get_key(conf, buf, buflen);
|
|
}
|
|
|
|
|
|
static void
|
|
wpas_dpp_tx_introduction_status(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq, const u8 *dst,
|
|
const u8 *src, const u8 *bssid,
|
|
const u8 *data, size_t data_len,
|
|
enum offchannel_send_action_result result)
|
|
{
|
|
const char *res_txt;
|
|
|
|
res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
|
|
(result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
|
|
"FAILED");
|
|
wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
|
|
" result=%s (DPP Peer Discovery Request)",
|
|
freq, MAC2STR(dst), res_txt);
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
|
|
" freq=%u result=%s", MAC2STR(dst), freq, res_txt);
|
|
/* TODO: Time out wait for response more quickly in error cases? */
|
|
}
|
|
|
|
|
|
int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
|
|
struct wpa_bss *bss)
|
|
{
|
|
struct os_time now;
|
|
struct wpabuf *msg;
|
|
unsigned int wait_time;
|
|
|
|
if (!(ssid->key_mgmt & WPA_KEY_MGMT_DPP) || !bss)
|
|
return 0; /* Not using DPP AKM - continue */
|
|
if (wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid))
|
|
return 0; /* PMKSA exists for DPP AKM - continue */
|
|
|
|
if (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
|
|
!ssid->dpp_csign) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
|
|
"missing %s",
|
|
!ssid->dpp_connector ? "Connector" :
|
|
(!ssid->dpp_netaccesskey ? "netAccessKey" :
|
|
"C-sign-key"));
|
|
return -1;
|
|
}
|
|
|
|
os_get_time(&now);
|
|
|
|
if (ssid->dpp_netaccesskey_expiry &&
|
|
(os_time_t) ssid->dpp_netaccesskey_expiry < now.sec) {
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
|
|
"netAccessKey expired");
|
|
return -1;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Starting network introduction protocol to derive PMKSA for "
|
|
MACSTR, MAC2STR(bss->bssid));
|
|
|
|
msg = dpp_alloc_msg(DPP_PA_PEER_DISCOVERY_REQ,
|
|
5 + 4 + os_strlen(ssid->dpp_connector));
|
|
if (!msg)
|
|
return -1;
|
|
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
if (dpp_test == DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_REQ) {
|
|
wpa_printf(MSG_INFO, "DPP: TESTING - no Transaction ID");
|
|
goto skip_trans_id;
|
|
}
|
|
if (dpp_test == DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_REQ) {
|
|
wpa_printf(MSG_INFO, "DPP: TESTING - invalid Transaction ID");
|
|
wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
|
|
wpabuf_put_le16(msg, 0);
|
|
goto skip_trans_id;
|
|
}
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
|
|
/* Transaction ID */
|
|
wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
|
|
wpabuf_put_le16(msg, 1);
|
|
wpabuf_put_u8(msg, TRANSACTION_ID);
|
|
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
skip_trans_id:
|
|
if (dpp_test == DPP_TEST_NO_CONNECTOR_PEER_DISC_REQ) {
|
|
wpa_printf(MSG_INFO, "DPP: TESTING - no Connector");
|
|
goto skip_connector;
|
|
}
|
|
if (dpp_test == DPP_TEST_INVALID_CONNECTOR_PEER_DISC_REQ) {
|
|
char *connector;
|
|
|
|
wpa_printf(MSG_INFO, "DPP: TESTING - invalid Connector");
|
|
connector = dpp_corrupt_connector_signature(
|
|
ssid->dpp_connector);
|
|
if (!connector) {
|
|
wpabuf_free(msg);
|
|
return -1;
|
|
}
|
|
wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
|
|
wpabuf_put_le16(msg, os_strlen(connector));
|
|
wpabuf_put_str(msg, connector);
|
|
os_free(connector);
|
|
goto skip_connector;
|
|
}
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
|
|
/* DPP Connector */
|
|
wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
|
|
wpabuf_put_le16(msg, os_strlen(ssid->dpp_connector));
|
|
wpabuf_put_str(msg, ssid->dpp_connector);
|
|
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
skip_connector:
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
|
|
/* TODO: Timeout on AP response */
|
|
wait_time = wpa_s->max_remain_on_chan;
|
|
if (wait_time > 2000)
|
|
wait_time = 2000;
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
|
|
MAC2STR(bss->bssid), bss->freq, DPP_PA_PEER_DISCOVERY_REQ);
|
|
offchannel_send_action(wpa_s, bss->freq, bss->bssid, wpa_s->own_addr,
|
|
broadcast,
|
|
wpabuf_head(msg), wpabuf_len(msg),
|
|
wait_time, wpas_dpp_tx_introduction_status, 0);
|
|
wpabuf_free(msg);
|
|
|
|
/* Request this connection attempt to terminate - new one will be
|
|
* started when network introduction protocol completes */
|
|
os_memcpy(wpa_s->dpp_intro_bssid, bss->bssid, ETH_ALEN);
|
|
wpa_s->dpp_intro_network = ssid;
|
|
return 1;
|
|
}
|
|
|
|
|
|
int wpas_dpp_pkex_add(struct wpa_supplicant *wpa_s, const char *cmd)
|
|
{
|
|
struct dpp_bootstrap_info *own_bi;
|
|
const char *pos, *end;
|
|
unsigned int wait_time;
|
|
|
|
pos = os_strstr(cmd, " own=");
|
|
if (!pos)
|
|
return -1;
|
|
pos += 5;
|
|
own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
|
|
if (!own_bi) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Identified bootstrap info not found");
|
|
return -1;
|
|
}
|
|
if (own_bi->type != DPP_BOOTSTRAP_PKEX) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"DPP: Identified bootstrap info not for PKEX");
|
|
return -1;
|
|
}
|
|
wpa_s->dpp_pkex_bi = own_bi;
|
|
own_bi->pkex_t = 0; /* clear pending errors on new code */
|
|
|
|
os_free(wpa_s->dpp_pkex_identifier);
|
|
wpa_s->dpp_pkex_identifier = NULL;
|
|
pos = os_strstr(cmd, " identifier=");
|
|
if (pos) {
|
|
pos += 12;
|
|
end = os_strchr(pos, ' ');
|
|
if (!end)
|
|
return -1;
|
|
wpa_s->dpp_pkex_identifier = os_malloc(end - pos + 1);
|
|
if (!wpa_s->dpp_pkex_identifier)
|
|
return -1;
|
|
os_memcpy(wpa_s->dpp_pkex_identifier, pos, end - pos);
|
|
wpa_s->dpp_pkex_identifier[end - pos] = '\0';
|
|
}
|
|
|
|
pos = os_strstr(cmd, " code=");
|
|
if (!pos)
|
|
return -1;
|
|
os_free(wpa_s->dpp_pkex_code);
|
|
wpa_s->dpp_pkex_code = os_strdup(pos + 6);
|
|
if (!wpa_s->dpp_pkex_code)
|
|
return -1;
|
|
|
|
if (os_strstr(cmd, " init=1")) {
|
|
struct dpp_pkex *pkex;
|
|
struct wpabuf *msg;
|
|
|
|
wpa_printf(MSG_DEBUG, "DPP: Initiating PKEX");
|
|
dpp_pkex_free(wpa_s->dpp_pkex);
|
|
wpa_s->dpp_pkex = dpp_pkex_init(wpa_s, own_bi, wpa_s->own_addr,
|
|
wpa_s->dpp_pkex_identifier,
|
|
wpa_s->dpp_pkex_code);
|
|
pkex = wpa_s->dpp_pkex;
|
|
if (!pkex)
|
|
return -1;
|
|
|
|
msg = pkex->exchange_req;
|
|
wait_time = wpa_s->max_remain_on_chan;
|
|
if (wait_time > 2000)
|
|
wait_time = 2000;
|
|
pkex->freq = 2437;
|
|
wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
|
|
" freq=%u type=%d",
|
|
MAC2STR(broadcast), pkex->freq,
|
|
DPP_PA_PKEX_EXCHANGE_REQ);
|
|
offchannel_send_action(wpa_s, pkex->freq, broadcast,
|
|
wpa_s->own_addr, broadcast,
|
|
wpabuf_head(msg), wpabuf_len(msg),
|
|
wait_time, wpas_dpp_tx_pkex_status, 0);
|
|
if (wait_time == 0)
|
|
wait_time = 2000;
|
|
pkex->exch_req_wait_time = wait_time;
|
|
pkex->exch_req_tries = 1;
|
|
}
|
|
|
|
/* TODO: Support multiple PKEX info entries */
|
|
|
|
os_free(wpa_s->dpp_pkex_auth_cmd);
|
|
wpa_s->dpp_pkex_auth_cmd = os_strdup(cmd);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
int wpas_dpp_pkex_remove(struct wpa_supplicant *wpa_s, const char *id)
|
|
{
|
|
unsigned int id_val;
|
|
|
|
if (os_strcmp(id, "*") == 0) {
|
|
id_val = 0;
|
|
} else {
|
|
id_val = atoi(id);
|
|
if (id_val == 0)
|
|
return -1;
|
|
}
|
|
|
|
if ((id_val != 0 && id_val != 1) || !wpa_s->dpp_pkex_code)
|
|
return -1;
|
|
|
|
/* TODO: Support multiple PKEX entries */
|
|
os_free(wpa_s->dpp_pkex_code);
|
|
wpa_s->dpp_pkex_code = NULL;
|
|
os_free(wpa_s->dpp_pkex_identifier);
|
|
wpa_s->dpp_pkex_identifier = NULL;
|
|
os_free(wpa_s->dpp_pkex_auth_cmd);
|
|
wpa_s->dpp_pkex_auth_cmd = NULL;
|
|
wpa_s->dpp_pkex_bi = NULL;
|
|
/* TODO: Remove dpp_pkex only if it is for the identified PKEX code */
|
|
dpp_pkex_free(wpa_s->dpp_pkex);
|
|
wpa_s->dpp_pkex = NULL;
|
|
return 0;
|
|
}
|
|
|
|
|
|
void wpas_dpp_stop(struct wpa_supplicant *wpa_s)
|
|
{
|
|
dpp_auth_deinit(wpa_s->dpp_auth);
|
|
wpa_s->dpp_auth = NULL;
|
|
dpp_pkex_free(wpa_s->dpp_pkex);
|
|
wpa_s->dpp_pkex = NULL;
|
|
if (wpa_s->dpp_gas_client && wpa_s->dpp_gas_dialog_token >= 0)
|
|
gas_query_stop(wpa_s->gas, wpa_s->dpp_gas_dialog_token);
|
|
}
|
|
|
|
|
|
int wpas_dpp_init(struct wpa_supplicant *wpa_s)
|
|
{
|
|
u8 adv_proto_id[7];
|
|
|
|
adv_proto_id[0] = WLAN_EID_VENDOR_SPECIFIC;
|
|
adv_proto_id[1] = 5;
|
|
WPA_PUT_BE24(&adv_proto_id[2], OUI_WFA);
|
|
adv_proto_id[5] = DPP_OUI_TYPE;
|
|
adv_proto_id[6] = 0x01;
|
|
|
|
if (gas_server_register(wpa_s->gas_server, adv_proto_id,
|
|
sizeof(adv_proto_id), wpas_dpp_gas_req_handler,
|
|
wpas_dpp_gas_status_handler, wpa_s) < 0)
|
|
return -1;
|
|
dl_list_init(&wpa_s->dpp_bootstrap);
|
|
dl_list_init(&wpa_s->dpp_configurator);
|
|
wpa_s->dpp_init_done = 1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
void wpas_dpp_deinit(struct wpa_supplicant *wpa_s)
|
|
{
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
os_free(wpa_s->dpp_config_obj_override);
|
|
wpa_s->dpp_config_obj_override = NULL;
|
|
os_free(wpa_s->dpp_discovery_override);
|
|
wpa_s->dpp_discovery_override = NULL;
|
|
os_free(wpa_s->dpp_groups_override);
|
|
wpa_s->dpp_groups_override = NULL;
|
|
wpa_s->dpp_ignore_netaccesskey_mismatch = 0;
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
if (!wpa_s->dpp_init_done)
|
|
return;
|
|
eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
|
|
offchannel_send_action_done(wpa_s);
|
|
wpas_dpp_listen_stop(wpa_s);
|
|
dpp_bootstrap_del(wpa_s, 0);
|
|
dpp_configurator_del(wpa_s, 0);
|
|
wpas_dpp_stop(wpa_s);
|
|
wpas_dpp_pkex_remove(wpa_s, "*");
|
|
os_memset(wpa_s->dpp_intro_bssid, 0, ETH_ALEN);
|
|
os_free(wpa_s->dpp_configurator_params);
|
|
wpa_s->dpp_configurator_params = NULL;
|
|
}
|