--- /dev/null
+/*
+ * BSS list
+ * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "common/defs.h"
+#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
+#include "crypto/sha1.h"
+#include "wlantest.h"
+
+
+struct wlantest_bss * bss_find(struct wlantest *wt, const u8 *bssid)
+{
+ struct wlantest_bss *bss;
+
+ dl_list_for_each(bss, &wt->bss, struct wlantest_bss, list) {
+ if (os_memcmp(bss->bssid, bssid, ETH_ALEN) == 0)
+ return bss;
+ }
+
+ return NULL;
+}
+
+
+struct wlantest_bss * bss_get(struct wlantest *wt, const u8 *bssid)
+{
+ struct wlantest_bss *bss;
+
+ if (bssid[0] & 0x01)
+ return NULL; /* Skip group addressed frames */
+
+ bss = bss_find(wt, bssid);
+ if (bss)
+ return bss;
+
+ bss = os_zalloc(sizeof(*bss));
+ if (bss == NULL)
+ return NULL;
+ dl_list_init(&bss->sta);
+ dl_list_init(&bss->pmk);
+ dl_list_init(&bss->tdls);
+ os_memcpy(bss->bssid, bssid, ETH_ALEN);
+ dl_list_add(&wt->bss, &bss->list);
+ wpa_printf(MSG_DEBUG, "Discovered new BSS - " MACSTR,
+ MAC2STR(bss->bssid));
+ return bss;
+}
+
+
+void pmk_deinit(struct wlantest_pmk *pmk)
+{
+ dl_list_del(&pmk->list);
+ os_free(pmk);
+}
+
+
+void tdls_deinit(struct wlantest_tdls *tdls)
+{
+ dl_list_del(&tdls->list);
+ os_free(tdls);
+}
+
+
+void bss_deinit(struct wlantest_bss *bss)
+{
+ struct wlantest_sta *sta, *n;
+ struct wlantest_pmk *pmk, *np;
+ struct wlantest_tdls *tdls, *nt;
+ dl_list_for_each_safe(sta, n, &bss->sta, struct wlantest_sta, list)
+ sta_deinit(sta);
+ dl_list_for_each_safe(pmk, np, &bss->pmk, struct wlantest_pmk, list)
+ pmk_deinit(pmk);
+ dl_list_for_each_safe(tdls, nt, &bss->tdls, struct wlantest_tdls, list)
+ tdls_deinit(tdls);
+ dl_list_del(&bss->list);
+ os_free(bss);
+}
+
+
+int bss_add_pmk_from_passphrase(struct wlantest_bss *bss,
+ const char *passphrase)
+{
+ struct wlantest_pmk *pmk;
+
+ pmk = os_zalloc(sizeof(*pmk));
+ if (pmk == NULL)
+ return -1;
+ if (pbkdf2_sha1(passphrase, bss->ssid, bss->ssid_len, 4096,
+ pmk->pmk, sizeof(pmk->pmk)) < 0) {
+ os_free(pmk);
+ return -1;
+ }
+
+ wpa_printf(MSG_INFO, "Add possible PMK for BSSID " MACSTR
+ " based on passphrase '%s'",
+ MAC2STR(bss->bssid), passphrase);
+ wpa_hexdump(MSG_DEBUG, "Possible PMK", pmk->pmk, sizeof(pmk->pmk));
+ dl_list_add(&bss->pmk, &pmk->list);
+
+ return 0;
+}
+
+
+static void bss_add_pmk(struct wlantest *wt, struct wlantest_bss *bss)
+{
+ struct wlantest_passphrase *p;
+
+ dl_list_for_each(p, &wt->passphrase, struct wlantest_passphrase, list)
+ {
+ if (!is_zero_ether_addr(p->bssid) &&
+ os_memcmp(p->bssid, bss->bssid, ETH_ALEN) != 0)
+ continue;
+ if (p->ssid_len &&
+ (p->ssid_len != bss->ssid_len ||
+ os_memcmp(p->ssid, bss->ssid, p->ssid_len) != 0))
+ continue;
+
+ if (bss_add_pmk_from_passphrase(bss, p->passphrase) < 0)
+ break;
+ }
+}
+
+
+void bss_update(struct wlantest *wt, struct wlantest_bss *bss,
+ struct ieee802_11_elems *elems)
+{
+ struct wpa_ie_data data;
+ int update = 0;
+
+ if (bss->capab_info != bss->prev_capab_info)
+ update = 1;
+
+ if (elems->ssid == NULL || elems->ssid_len > 32) {
+ wpa_printf(MSG_INFO, "Invalid or missing SSID in a Beacon "
+ "frame for " MACSTR, MAC2STR(bss->bssid));
+ bss->parse_error_reported = 1;
+ return;
+ }
+
+ if (bss->ssid_len != elems->ssid_len ||
+ os_memcmp(bss->ssid, elems->ssid, bss->ssid_len) != 0) {
+ wpa_printf(MSG_DEBUG, "Store SSID '%s' for BSSID " MACSTR,
+ wpa_ssid_txt(elems->ssid, elems->ssid_len),
+ MAC2STR(bss->bssid));
+ os_memcpy(bss->ssid, elems->ssid, elems->ssid_len);
+ bss->ssid_len = elems->ssid_len;
+ bss_add_pmk(wt, bss);
+ }
+
+ if (elems->osen == NULL) {
+ if (bss->osenie[0]) {
+ add_note(wt, MSG_INFO, "BSS " MACSTR
+ " - OSEN IE removed", MAC2STR(bss->bssid));
+ bss->rsnie[0] = 0;
+ update = 1;
+ }
+ } else {
+ if (bss->osenie[0] == 0 ||
+ os_memcmp(bss->osenie, elems->osen - 2,
+ elems->osen_len + 2) != 0) {
+ wpa_printf(MSG_INFO, "BSS " MACSTR " - OSEN IE "
+ "stored", MAC2STR(bss->bssid));
+ wpa_hexdump(MSG_DEBUG, "OSEN IE", elems->osen - 2,
+ elems->osen_len + 2);
+ update = 1;
+ }
+ os_memcpy(bss->osenie, elems->osen - 2,
+ elems->osen_len + 2);
+ }
+
+ if (elems->rsn_ie == NULL) {
+ if (bss->rsnie[0]) {
+ add_note(wt, MSG_INFO, "BSS " MACSTR
+ " - RSN IE removed", MAC2STR(bss->bssid));
+ bss->rsnie[0] = 0;
+ update = 1;
+ }
+ } else {
+ if (bss->rsnie[0] == 0 ||
+ os_memcmp(bss->rsnie, elems->rsn_ie - 2,
+ elems->rsn_ie_len + 2) != 0) {
+ wpa_printf(MSG_INFO, "BSS " MACSTR " - RSN IE "
+ "stored", MAC2STR(bss->bssid));
+ wpa_hexdump(MSG_DEBUG, "RSN IE", elems->rsn_ie - 2,
+ elems->rsn_ie_len + 2);
+ update = 1;
+ }
+ os_memcpy(bss->rsnie, elems->rsn_ie - 2,
+ elems->rsn_ie_len + 2);
+ }
+
+ if (elems->wpa_ie == NULL) {
+ if (bss->wpaie[0]) {
+ add_note(wt, MSG_INFO, "BSS " MACSTR
+ " - WPA IE removed", MAC2STR(bss->bssid));
+ bss->wpaie[0] = 0;
+ update = 1;
+ }
+ } else {
+ if (bss->wpaie[0] == 0 ||
+ os_memcmp(bss->wpaie, elems->wpa_ie - 2,
+ elems->wpa_ie_len + 2) != 0) {
+ wpa_printf(MSG_INFO, "BSS " MACSTR " - WPA IE "
+ "stored", MAC2STR(bss->bssid));
+ wpa_hexdump(MSG_DEBUG, "WPA IE", elems->wpa_ie - 2,
+ elems->wpa_ie_len + 2);
+ update = 1;
+ }
+ os_memcpy(bss->wpaie, elems->wpa_ie - 2,
+ elems->wpa_ie_len + 2);
+ }
+
+ if (elems->mdie)
+ os_memcpy(bss->mdid, elems->mdie, 2);
+
+ if (!update)
+ return;
+
+ bss->prev_capab_info = bss->capab_info;
+ bss->proto = 0;
+ bss->pairwise_cipher = 0;
+ bss->group_cipher = 0;
+ bss->key_mgmt = 0;
+ bss->rsn_capab = 0;
+ bss->mgmt_group_cipher = 0;
+
+ if (bss->wpaie[0]) {
+ if (wpa_parse_wpa_ie_wpa(bss->wpaie, 2 + bss->wpaie[1], &data)
+ < 0) {
+ add_note(wt, MSG_INFO, "Failed to parse WPA IE from "
+ MACSTR, MAC2STR(bss->bssid));
+ } else {
+ bss->proto |= data.proto;
+ bss->pairwise_cipher |= data.pairwise_cipher;
+ bss->group_cipher |= data.group_cipher;
+ bss->key_mgmt |= data.key_mgmt;
+ bss->rsn_capab = data.capabilities;
+ bss->mgmt_group_cipher |= data.mgmt_group_cipher;
+ }
+ }
+
+ if (bss->rsnie[0]) {
+ if (wpa_parse_wpa_ie_rsn(bss->rsnie, 2 + bss->rsnie[1], &data)
+ < 0) {
+ add_note(wt, MSG_INFO, "Failed to parse RSN IE from "
+ MACSTR, MAC2STR(bss->bssid));
+ } else {
+ bss->proto |= data.proto;
+ bss->pairwise_cipher |= data.pairwise_cipher;
+ bss->group_cipher |= data.group_cipher;
+ bss->key_mgmt |= data.key_mgmt;
+ bss->rsn_capab = data.capabilities;
+ bss->mgmt_group_cipher |= data.mgmt_group_cipher;
+ }
+ }
+
+ if (bss->osenie[0]) {
+ bss->proto |= WPA_PROTO_OSEN;
+ bss->pairwise_cipher |= WPA_CIPHER_CCMP;
+ bss->group_cipher |= WPA_CIPHER_CCMP;
+ bss->key_mgmt |= WPA_KEY_MGMT_OSEN;
+ }
+
+ if (!(bss->proto & WPA_PROTO_RSN) ||
+ !(bss->rsn_capab & WPA_CAPABILITY_MFPC))
+ bss->mgmt_group_cipher = 0;
+
+ if (!bss->wpaie[0] && !bss->rsnie[0] && !bss->osenie[0] &&
+ (bss->capab_info & WLAN_CAPABILITY_PRIVACY))
+ bss->group_cipher = WPA_CIPHER_WEP40;
+
+ wpa_printf(MSG_INFO, "BSS " MACSTR
+ " proto=%s%s%s%s"
+ "pairwise=%s%s%s%s%s%s%s"
+ "group=%s%s%s%s%s%s%s%s%s"
+ "mgmt_group_cipher=%s%s%s%s%s"
+ "key_mgmt=%s%s%s%s%s%s%s%s%s"
+ "rsn_capab=%s%s%s%s%s",
+ MAC2STR(bss->bssid),
+ bss->proto == 0 ? "OPEN " : "",
+ bss->proto & WPA_PROTO_WPA ? "WPA " : "",
+ bss->proto & WPA_PROTO_RSN ? "WPA2 " : "",
+ bss->proto & WPA_PROTO_OSEN ? "OSEN " : "",
+ bss->pairwise_cipher == 0 ? "N/A " : "",
+ bss->pairwise_cipher & WPA_CIPHER_NONE ? "NONE " : "",
+ bss->pairwise_cipher & WPA_CIPHER_TKIP ? "TKIP " : "",
+ bss->pairwise_cipher & WPA_CIPHER_CCMP ? "CCMP " : "",
+ bss->pairwise_cipher & WPA_CIPHER_CCMP_256 ? "CCMP-256 " :
+ "",
+ bss->pairwise_cipher & WPA_CIPHER_GCMP ? "GCMP " : "",
+ bss->pairwise_cipher & WPA_CIPHER_GCMP_256 ? "GCMP-256 " :
+ "",
+ bss->group_cipher == 0 ? "N/A " : "",
+ bss->group_cipher & WPA_CIPHER_NONE ? "NONE " : "",
+ bss->group_cipher & WPA_CIPHER_WEP40 ? "WEP40 " : "",
+ bss->group_cipher & WPA_CIPHER_WEP104 ? "WEP104 " : "",
+ bss->group_cipher & WPA_CIPHER_TKIP ? "TKIP " : "",
+ bss->group_cipher & WPA_CIPHER_CCMP ? "CCMP " : "",
+ bss->group_cipher & WPA_CIPHER_CCMP_256 ? "CCMP-256 " : "",
+ bss->group_cipher & WPA_CIPHER_GCMP ? "GCMP " : "",
+ bss->group_cipher & WPA_CIPHER_GCMP_256 ? "GCMP-256 " : "",
+ bss->mgmt_group_cipher == 0 ? "N/A " : "",
+ bss->mgmt_group_cipher & WPA_CIPHER_AES_128_CMAC ?
+ "BIP " : "",
+ bss->mgmt_group_cipher & WPA_CIPHER_BIP_GMAC_128 ?
+ "BIP-GMAC-128 " : "",
+ bss->mgmt_group_cipher & WPA_CIPHER_BIP_GMAC_256 ?
+ "BIP-GMAC-256 " : "",
+ bss->mgmt_group_cipher & WPA_CIPHER_BIP_CMAC_256 ?
+ "BIP-CMAC-256 " : "",
+ bss->key_mgmt == 0 ? "N/A " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_IEEE8021X ? "EAP " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_PSK ? "PSK " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_WPA_NONE ? "WPA-NONE " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X ? "FT-EAP " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_FT_PSK ? "FT-PSK " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256 ?
+ "EAP-SHA256 " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_PSK_SHA256 ?
+ "PSK-SHA256 " : "",
+ bss->key_mgmt & WPA_KEY_MGMT_OSEN ? "OSEN " : "",
+ bss->rsn_capab & WPA_CAPABILITY_PREAUTH ? "PREAUTH " : "",
+ bss->rsn_capab & WPA_CAPABILITY_NO_PAIRWISE ?
+ "NO_PAIRWISE " : "",
+ bss->rsn_capab & WPA_CAPABILITY_MFPR ? "MFPR " : "",
+ bss->rsn_capab & WPA_CAPABILITY_MFPC ? "MFPC " : "",
+ bss->rsn_capab & WPA_CAPABILITY_PEERKEY_ENABLED ?
+ "PEERKEY " : "");
+}
+
+
+void bss_flush(struct wlantest *wt)
+{
+ struct wlantest_bss *bss, *n;
+ dl_list_for_each_safe(bss, n, &wt->bss, struct wlantest_bss, list)
+ bss_deinit(bss);
+}
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