X-Git-Url: http://www.project-moonshot.org/gitweb/?p=mech_eap.git;a=blobdiff_plain;f=libeap%2Fwlantest%2Fbss.c;fp=libeap%2Fwlantest%2Fbss.c;h=f021956ccd312b68c84fb104e8cb2ba696055a0a;hp=0000000000000000000000000000000000000000;hb=f3746d009c6d7f50025af1f58a85e5fee9680be6;hpb=244f18d04aaf29e68495b5ffeb40ef5cca50942f

diff --git a/libeap/wlantest/bss.c b/libeap/wlantest/bss.c
new file mode 100644
index 0000000..f021956
--- /dev/null
+++ b/libeap/wlantest/bss.c
@@ -0,0 +1,344 @@
+/*
+ * 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);
+}