Accumulative patch from commit b618a469c42120e984ab1c85ed6058504d1fca78

  Author: Jouni Malinen <jouni@qca.qualcomm.com>
  Date:   Sat Feb 16 19:54:09 2013 +0200
    Interworking: Select highest priority cred if multiple matches

Interworking: Select highest priority cred if multiple matches
GAS server: Fix a regression in GAS server callback
hostapd: Fix Max SP Length derivation from QoS Info
nl80211: Configure STA Capabilities and Extended Capabilities
Synchronize with wireless-testing.git include/uapi/linux/nl80211.h
WPS: Fix build without CONFIG_WPS_NFC
WPS: Add support for NFC handover select generation with wpa_supplicant
WPS: Update NFC connection handover documentation
WPS: Add support for config token generation with wpa_supplicant
WPS: Allow password token to be written with nfcpy
WPS: Use pre-configured NFC password token instead of overriding it
TDLS: Pass peer's Capability and Ext Capability info during sta_add
TDLS: Pass peer's HT Capability and QOS information during sta_add
nl80211: Add debug prints for STA add/set operations
TDLS: Fix add/set STA operation
Synchronize with wireless-testing.git include/uapi/linux/nl80211.h
WPS: Allow Device Password to be changed from M1 to M2
WPS: Fix wps_reg nfc-pw option
TDLS: Tear down peers when disconnecting from the AP
P2P: Do not use old scan result data for peer discovery
Use more accurate timestamps for scan results
P2P: Postpone P2P-DEVICE-FOUND if config_methods not known
P2P: Do not allow peer update to clear config_methods
WPS: Report NFC connection handover completion differently
P2P: Avoid concurrent scans during all steps of group formation
P2P: Cancel group formation timeout on group removal (on client)
WPS: Change listen time to match nfcpy default (250 ms)
WPS: Report only the carrier record from NFC to wpa_supplicant
WPS: Fetch only the carrier record from wpa_supplicant for NFC
WPS: Update nfcpy script to support AP mode NFC connection handover
WPS: Add command for fetching carrier record for NFC handover
WPS: Clean up debug prints with nfcpy
WPS: Remove 0.5 sec extra wait from NFC handover with nfcpy
WPS: Use alternating poll/listen for NFC peer discovery with nfcpy
WPS: Configure logging to show nfcpy log message
WPS: Add an example python script for NFC operations with hostapd
hostapd: Do not change HT40 capability due to OBSS scan
dbus: Add missing signal description for WPS (7)
EAP peer: Add Session-Id derivation to more EAP methods
EAP peer: Add Session-Id derivation
EAP-IKEV2 server: Fix invalid memory freeing operation
eap_proxy: Add a dummy implementation for compilation testing
eap_proxy: Add mechanism for allowing EAP methods to be offloaded
Android: Allow setgroups to be overridden from build configuration
P2P: Send p2p_stop_find event on failure to start pending p2p_find
P2P: Fix GO Probe Response IEs when Wi-Fi Display is enabled
Capability matching for 60 GHz band
nl80211: Add ctrl_iface message for AP mode connection rejection
P2P: Allow local configuration to use 5 GHz band 40 MHz channels
Fix BSS RANGE command for no exact id match cases

Change-Id: Iac9284bba31db40911aecc3adf2843c9b1576db1
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

1 files changed, 92 insertions, 0 deletions

diff --git a/src/eapol_supp/eapol_supp_sm.c b/src/eapol_supp/eapol_supp_sm.c
index f90fb625..2e560865 100644
--- a/src/eapol_supp/eapol_supp_sm.c
+++ b/src/eapol_supp/eapol_supp_sm.c
@@ -16,6 +16,7 @@
 #include "crypto/md5.h"
 #include "common/eapol_common.h"
 #include "eap_peer/eap.h"
+#include "eap_peer/eap_proxy.h"
 #include "eapol_supp_sm.h"
 
 #define STATE_MACHINE_DATA struct eapol_sm
@@ -136,6 +137,10 @@ struct eapol_sm {
 	Boolean cached_pmk;
 
 	Boolean unicast_key_received, broadcast_key_received;
+#ifdef CONFIG_EAP_PROXY
+	Boolean use_eap_proxy;
+	struct eap_proxy_sm *eap_proxy;
+#endif /* CONFIG_EAP_PROXY */
 };
 
 
@@ -463,6 +468,17 @@ SM_STATE(SUPP_BE, SUCCESS)
 	sm->keyRun = TRUE;
 	sm->suppSuccess = TRUE;
 
+#ifdef CONFIG_EAP_PROXY
+	if (sm->use_eap_proxy) {
+		if (eap_proxy_key_available(sm->eap_proxy)) {
+			/* New key received - clear IEEE 802.1X EAPOL-Key replay
+			 * counter */
+			sm->replay_counter_valid = FALSE;
+		}
+		return;
+	}
+#endif /* CONFIG_EAP_PROXY */
+
 	if (eap_key_available(sm->eap)) {
 		/* New key received - clear IEEE 802.1X EAPOL-Key replay
 		 * counter */
@@ -806,6 +822,19 @@ static void eapol_sm_txSuppRsp(struct eapol_sm *sm)
 	struct wpabuf *resp;
 
 	wpa_printf(MSG_DEBUG, "EAPOL: txSuppRsp");
+
+#ifdef CONFIG_EAP_PROXY
+	if (sm->use_eap_proxy) {
+		/* Get EAP Response from EAP Proxy */
+		resp = eap_proxy_get_eapRespData(sm->eap_proxy);
+		if (resp == NULL) {
+			wpa_printf(MSG_WARNING, "EAPOL: txSuppRsp - EAP Proxy "
+				   "response data not available");
+			return;
+		}
+	} else
+#endif /* CONFIG_EAP_PROXY */
+
 	resp = eap_get_eapRespData(sm->eap);
 	if (resp == NULL) {
 		wpa_printf(MSG_WARNING, "EAPOL: txSuppRsp - EAP response data "
@@ -883,6 +912,13 @@ void eapol_sm_step(struct eapol_sm *sm)
 		SM_STEP_RUN(SUPP_PAE);
 		SM_STEP_RUN(KEY_RX);
 		SM_STEP_RUN(SUPP_BE);
+#ifdef CONFIG_EAP_PROXY
+		if (sm->use_eap_proxy) {
+			/* Drive the EAP proxy state machine */
+			if (eap_proxy_sm_step(sm->eap_proxy, sm->eap))
+				sm->changed = TRUE;
+		} else
+#endif /* CONFIG_EAP_PROXY */
 		if (eap_peer_sm_step(sm->eap))
 			sm->changed = TRUE;
 		if (!sm->changed)
@@ -1070,6 +1106,13 @@ int eapol_sm_get_status(struct eapol_sm *sm, char *buf, size_t buflen,
 		len += ret;
 	}
 
+#ifdef CONFIG_EAP_PROXY
+	if (sm->use_eap_proxy)
+		len += eap_proxy_sm_get_status(sm->eap_proxy,
+					       buf + len, buflen - len,
+					       verbose);
+	else
+#endif /* CONFIG_EAP_PROXY */
 	len += eap_sm_get_status(sm->eap, buf + len, buflen - len, verbose);
 
 	return len;
@@ -1227,6 +1270,16 @@ int eapol_sm_rx_eapol(struct eapol_sm *sm, const u8 *src, const u8 *buf,
 			wpa_printf(MSG_DEBUG, "EAPOL: Received EAP-Packet "
 				   "frame");
 			sm->eapolEap = TRUE;
+#ifdef CONFIG_EAP_PROXY
+			if (sm->use_eap_proxy) {
+				eap_proxy_packet_update(
+					sm->eap_proxy,
+					wpabuf_mhead_u8(sm->eapReqData),
+					wpabuf_len(sm->eapReqData));
+				wpa_printf(MSG_DEBUG, "EAPOL: eap_proxy "
+					   "EAP Req updated");
+			}
+#endif /* CONFIG_EAP_PROXY */
 			eapol_sm_step(sm);
 		}
 		break;
@@ -1387,6 +1440,9 @@ void eapol_sm_notify_config(struct eapol_sm *sm,
 		return;
 
 	sm->config = config;
+#ifdef CONFIG_EAP_PROXY
+	sm->use_eap_proxy = eap_proxy_notify_config(sm->eap_proxy, config) > 0;
+#endif /* CONFIG_EAP_PROXY */
 
 	if (conf == NULL)
 		return;
@@ -1395,6 +1451,12 @@ void eapol_sm_notify_config(struct eapol_sm *sm,
 	sm->conf.required_keys = conf->required_keys;
 	sm->conf.fast_reauth = conf->fast_reauth;
 	sm->conf.workaround = conf->workaround;
+#ifdef CONFIG_EAP_PROXY
+	if (sm->use_eap_proxy) {
+		/* Using EAP Proxy, so skip EAP state machine update */
+		return;
+	}
+#endif /* CONFIG_EAP_PROXY */
 	if (sm->eap) {
 		eap_set_fast_reauth(sm->eap, conf->fast_reauth);
 		eap_set_workaround(sm->eap, conf->workaround);
@@ -1419,6 +1481,22 @@ int eapol_sm_get_key(struct eapol_sm *sm, u8 *key, size_t len)
 	const u8 *eap_key;
 	size_t eap_len;
 
+#ifdef CONFIG_EAP_PROXY
+	if (sm->use_eap_proxy) {
+		/* Get key from EAP proxy */
+		if (sm == NULL || !eap_proxy_key_available(sm->eap_proxy)) {
+			wpa_printf(MSG_DEBUG, "EAPOL: EAP key not available");
+			return -1;
+		}
+		eap_key = eap_proxy_get_eapKeyData(sm->eap_proxy, &eap_len);
+		if (eap_key == NULL) {
+			wpa_printf(MSG_DEBUG, "EAPOL: Failed to get "
+				   "eapKeyData");
+			return -1;
+		}
+		goto key_fetched;
+	}
+#endif /* CONFIG_EAP_PROXY */
 	if (sm == NULL || !eap_key_available(sm->eap)) {
 		wpa_printf(MSG_DEBUG, "EAPOL: EAP key not available");
 		return -1;
@@ -1428,6 +1506,9 @@ int eapol_sm_get_key(struct eapol_sm *sm, u8 *key, size_t len)
 		wpa_printf(MSG_DEBUG, "EAPOL: Failed to get eapKeyData");
 		return -1;
 	}
+#ifdef CONFIG_EAP_PROXY
+key_fetched:
+#endif /* CONFIG_EAP_PROXY */
 	if (len > eap_len) {
 		wpa_printf(MSG_DEBUG, "EAPOL: Requested key length (%lu) not "
 			   "available (len=%lu)",
@@ -1889,6 +1970,14 @@ struct eapol_sm *eapol_sm_init(struct eapol_ctx *ctx)
 		return NULL;
 	}
 
+#ifdef CONFIG_EAP_PROXY
+	sm->use_eap_proxy = FALSE;
+	sm->eap_proxy = eap_proxy_init(sm, &eapol_cb, sm->ctx->msg_ctx);
+	if (sm->eap_proxy == NULL) {
+		wpa_printf(MSG_ERROR, "Unable to initialize EAP Proxy");
+	}
+#endif /* CONFIG_EAP_PROXY */
+
 	/* Initialize EAPOL state machines */
 	sm->initialize = TRUE;
 	eapol_sm_step(sm);
@@ -1915,6 +2004,9 @@ void eapol_sm_deinit(struct eapol_sm *sm)
 	eloop_cancel_timeout(eapol_sm_step_timeout, NULL, sm);
 	eloop_cancel_timeout(eapol_port_timers_tick, NULL, sm);
 	eap_peer_sm_deinit(sm->eap);
+#ifdef CONFIG_EAP_PROXY
+	eap_proxy_deinit(sm->eap_proxy);
+#endif /* CONFIG_EAP_PROXY */
 	os_free(sm->last_rx_key);
 	wpabuf_free(sm->eapReqData);
 	os_free(sm->ctx);