Add support for PS3 Linux wireless driver

This adds support for PS3 wireless to wpa_supplicant.

Although PS3 wireless driver is designed to conform the WEXT standard
as much as possible, unfortunately the wext driver wrapper of
wpa_supplicant can not support PS3 wireless fully because:

 - PS3 wireless driver uses private WEXT ioctls for accepting PSK of
   WPA-Personal from the userland.
   WEXT does not specify the way to do it.

 - The association and 4-way handshake are done by PS3 virtual
   wireless device. The guest OSes can not interfere it.

 - No EAPOL frames are allowed to go outside of the
   hypervisor/firmware nor come from. They are eaten by the firmware.

Thus I needed to make a new driver wrapper for PS3 wireless.

This patch can be applied against the latest 0.6.x tree.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>

src/drivers/driver_ps3.c

@@ -0,0 +1,185 @@
+/*
+ * WPA Supplicant - PS3 Linux wireless extension driver interface
+ * Copyright 2007, 2008 Sony Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+#include <sys/ioctl.h>
+#include "wireless_copy.h"
+#include "common.h"
+#include "wpa_common.h"
+#include "driver.h"
+#include "eloop.h"
+#include "driver_wext.h"
+#include "ieee802_11_defs.h"
+
+static int wpa_driver_ps3_set_wpa_key(struct wpa_driver_wext_data *drv,
+				struct wpa_driver_associate_params *params)
+{
+	int ret, i;
+	struct iwreq iwr;
+	char *buf, *str;
+
+	if (!params->psk && !params->passphrase) {
+		wpa_printf(MSG_INFO, "%s:no PSK error\n", __FUNCTION__);
+		return -EINVAL;
+	}
+
+	os_memset(&iwr, 0, sizeof(iwr));
+	if (params->psk) {
+		/* includes null */
+		iwr.u.data.length = PMK_LEN * 2 + 1;
+		buf = os_malloc(iwr.u.data.length);
+		if (!buf)
+			return -ENOMEM;
+		str = buf;
+		for (i = 0; i < PMK_LEN; i++) {
+			str += snprintf(str, iwr.u.data.length - (str - buf),
+					"%02x", params->psk[i]);
+		}
+	} else if (params->passphrase) {
+		/* including quotations and null */
+		iwr.u.data.length = strlen(params->passphrase) + 3;
+		if (!buf)
+			return -ENOMEM;
+		buf[0] = '"';
+		os_memcpy(buf + 1, params->passphrase, iwr.u.data.length - 3);
+		buf[iwr.u.data.length - 2] = '"';
+		buf[iwr.u.data.length - 1] = '\0';
+	}
+	iwr.u.data.pointer = (caddr_t)buf;
+	os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+	ret = ioctl(drv->ioctl_sock, SIOCIWFIRSTPRIV, &iwr);
+	os_free(buf);
+
+	return ret;
+}
+
+static int wpa_driver_ps3_set_wep_keys(struct wpa_driver_wext_data *drv,
+				struct wpa_driver_associate_params *params)
+{
+	int ret, i;
+	struct iwreq iwr;
+
+	for (i = 0; i < 4; i++) {
+		os_memset(&iwr, 0, sizeof(iwr));
+		os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+		iwr.u.encoding.flags = i + 1;
+		if (params->wep_key_len[i]) {
+			iwr.u.encoding.pointer = (caddr_t) params->wep_key[i];
+			iwr.u.encoding.length = params->wep_key_len[i];
+		} else
+			iwr.u.encoding.flags = IW_ENCODE_NOKEY |
+				IW_ENCODE_DISABLED;
+
+		if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
+			perror("ioctl[SIOCSIWENCODE]");
+			ret = -1;
+		}
+	}
+	return ret;
+}
+
+static int wpa_driver_ps3_associate(void *priv,
+				    struct wpa_driver_associate_params *params)
+{
+	struct wpa_driver_wext_data *drv = priv;
+	int ret, i, value;
+
+	wpa_printf(MSG_DEBUG, "%s: <-\n", __func__);
+
+	/* clear BSSID */
+	if (!params->bssid &&
+	    wpa_driver_wext_set_bssid(drv, NULL) < 0)
+		ret = -1;
+
+	if (wpa_driver_wext_set_mode(drv, params->mode) < 0)
+		ret = -1;
+
+	if (params->wpa_ie == NULL || params->wpa_ie_len == 0)
+		value = IW_AUTH_WPA_VERSION_DISABLED;
+	else if (params->wpa_ie[0] == WLAN_EID_RSN)
+		value = IW_AUTH_WPA_VERSION_WPA2;
+	else
+		value = IW_AUTH_WPA_VERSION_WPA;
+	if (wpa_driver_wext_set_auth_param(drv,
+					   IW_AUTH_WPA_VERSION, value) < 0)
+		ret = -1;
+	value = wpa_driver_wext_cipher2wext(params->pairwise_suite);
+	if (wpa_driver_wext_set_auth_param(drv,
+					   IW_AUTH_CIPHER_PAIRWISE, value) < 0)
+		ret = -1;
+	value = wpa_driver_wext_cipher2wext(params->group_suite);
+	if (wpa_driver_wext_set_auth_param(drv,
+					   IW_AUTH_CIPHER_GROUP, value) < 0)
+		ret = -1;
+	value = wpa_driver_wext_keymgmt2wext(params->key_mgmt_suite);
+	if (wpa_driver_wext_set_auth_param(drv,
+					   IW_AUTH_KEY_MGMT, value) < 0)
+		ret = -1;
+
+	/* set selected BSSID */
+	if (params->bssid &&
+	    wpa_driver_wext_set_bssid(drv, params->bssid) < 0)
+		ret = -1;
+
+	switch (params->group_suite) {
+	case CIPHER_NONE:
+		ret = 0;
+		break;
+	case CIPHER_WEP40:
+	case CIPHER_WEP104:
+		ret = wpa_driver_ps3_set_wep_keys(drv, params);
+		break;
+	case CIPHER_TKIP:
+	case CIPHER_CCMP:
+		ret = wpa_driver_ps3_set_wpa_key(drv, params);
+		break;
+	}
+
+	/* start to associate */
+	ret = wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len);
+
+	wpa_printf(MSG_DEBUG, "%s: ->\n", __func__);
+
+	return ret;
+}
+
+static int wpa_driver_ps3_get_capa(void *priv, struct wpa_driver_capa *capa)
+{
+	int ret;
+	wpa_printf(MSG_DEBUG, "%s:<-\n", __func__);
+
+	ret = wpa_driver_wext_get_capa(priv, capa);
+	if (ret) {
+		wpa_printf(MSG_INFO, "%s: base wext returns error %d\n", __func__,
+			   ret);
+		return ret;
+	}
+	/* PS3 hypervisor does association and 4way handshake by itself */
+	capa->flags |= WPA_DRIVER_FLAGS_4WAY_HANDSHAKE;
+	wpa_printf(MSG_DEBUG, "%s:->\n", __func__);
+	return 0;
+}
+
+const struct wpa_driver_ops wpa_driver_ps3_ops = {
+	.name = "ps3",
+	.desc = "PLAYSTATION3 Linux wireless extension driver",
+	.get_bssid = wpa_driver_wext_get_bssid,
+	.get_ssid = wpa_driver_wext_get_ssid,
+	.scan = wpa_driver_wext_scan,
+	.get_scan_results2 = wpa_driver_wext_get_scan_results,
+	.associate = wpa_driver_ps3_associate, /* PS3 */
+	.init = wpa_driver_wext_init,
+	.deinit = wpa_driver_wext_deinit,
+	.get_capa = wpa_driver_ps3_get_capa, /* PS3 */
+};

src/drivers/driver_wext.c

@@ -149,32 +149,6 @@ enum {
 #endif /* CONFIG_CLIENT_MLME */
 
 
-struct wpa_driver_wext_data {
-	void *ctx;
-	int event_sock;
-	int ioctl_sock;
-	int mlme_sock;
-	char ifname[IFNAMSIZ + 1];
-	int ifindex;
-	int ifindex2;
-	u8 *assoc_req_ies;
-	size_t assoc_req_ies_len;
-	u8 *assoc_resp_ies;
-	size_t assoc_resp_ies_len;
-	struct wpa_driver_capa capa;
-	int has_capability;
-	int we_version_compiled;
-
-	/* for set_auth_alg fallback */
-	int use_crypt;
-	int auth_alg_fallback;
-
-	int operstate;
-
-	char mlmedev[IFNAMSIZ + 1];
-
-	int scan_complete_events;
-};
 
 
 static int wpa_driver_wext_flush_pmkid(void *priv);
@@ -239,8 +213,8 @@ static int wpa_driver_wext_send_oper_ifla(struct wpa_driver_wext_data *drv,
 }
 
 
-static int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
-					  int idx, u32 value)
+int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
+				   int idx, u32 value)
 {
 	struct iwreq iwr;
 	int ret = 0;
@@ -1977,7 +1951,7 @@ static int wpa_driver_wext_set_gen_ie(void *priv, const u8 *ie,
 }
 
 
-static int wpa_driver_wext_cipher2wext(int cipher)
+int wpa_driver_wext_cipher2wext(int cipher)
 {
 	switch (cipher) {
 	case CIPHER_NONE:
@@ -1996,7 +1970,7 @@ static int wpa_driver_wext_cipher2wext(int cipher)
 }
 
 
-static int wpa_driver_wext_keymgmt2wext(int keymgmt)
+int wpa_driver_wext_keymgmt2wext(int keymgmt)
 {
 	switch (keymgmt) {
 	case KEY_MGMT_802_1X:
@@ -2054,9 +2028,8 @@ wpa_driver_wext_auth_alg_fallback(struct wpa_driver_wext_data *drv,
 }
 
 
-static int
-wpa_driver_wext_associate(void *priv,
-			  struct wpa_driver_associate_params *params)
+int wpa_driver_wext_associate(void *priv,
+			      struct wpa_driver_associate_params *params)
 {
 	struct wpa_driver_wext_data *drv = priv;
 	int ret = 0;
@@ -2239,7 +2212,7 @@ static int wpa_driver_wext_flush_pmkid(void *priv)
 }
 
 
-static int wpa_driver_wext_get_capa(void *priv, struct wpa_driver_capa *capa)
+int wpa_driver_wext_get_capa(void *priv, struct wpa_driver_capa *capa)
 {
 	struct wpa_driver_wext_data *drv = priv;
 	if (!drv->has_capability)

src/drivers/driver_wext.h

@@ -15,7 +15,34 @@
 #ifndef DRIVER_WEXT_H
 #define DRIVER_WEXT_H
 
-struct wpa_driver_wext_data;
+#include <net/if.h>
+
+struct wpa_driver_wext_data {
+	void *ctx;
+	int event_sock;
+	int ioctl_sock;
+	int mlme_sock;
+	char ifname[IFNAMSIZ + 1];
+	int ifindex;
+	int ifindex2;
+	u8 *assoc_req_ies;
+	size_t assoc_req_ies_len;
+	u8 *assoc_resp_ies;
+	size_t assoc_resp_ies_len;
+	struct wpa_driver_capa capa;
+	int has_capability;
+	int we_version_compiled;
+
+	/* for set_auth_alg fallback */
+	int use_crypt;
+	int auth_alg_fallback;
+
+	int operstate;
+
+	char mlmedev[IFNAMSIZ + 1];
+
+	int scan_complete_events;
+};
 
 int wpa_driver_wext_get_ifflags(struct wpa_driver_wext_data *drv, int *flags);
 int wpa_driver_wext_set_ifflags(struct wpa_driver_wext_data *drv, int flags);
@@ -43,4 +70,12 @@ void wpa_driver_wext_deinit(void *priv);
 int wpa_driver_wext_set_operstate(void *priv, int state);
 int wpa_driver_wext_get_version(struct wpa_driver_wext_data *drv);
 
+int wpa_driver_wext_associate(void *priv,
+			      struct wpa_driver_associate_params *params);
+int wpa_driver_wext_get_capa(void *priv, struct wpa_driver_capa *capa);
+int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
+				   int idx, u32 value);
+int wpa_driver_wext_cipher2wext(int cipher);
+int wpa_driver_wext_keymgmt2wext(int keymgmt);
+
 #endif /* DRIVER_WEXT_H */

src/drivers/drivers.c

@@ -61,6 +61,9 @@ extern struct wpa_driver_ops wpa_driver_ralink_ops; /* driver_ralink.c */
 #ifdef CONFIG_DRIVER_OSX
 extern struct wpa_driver_ops wpa_driver_osx_ops; /* driver_osx.m */
 #endif /* CONFIG_DRIVER_OSX */
+#ifdef CONFIG_DRIVER_PS3
+extern struct wpa_driver_ops wpa_driver_ps3_ops; /* driver_ps3.c */
+#endif /* CONFIG_DRIVER_PS3 */
 #ifdef CONFIG_DRIVER_IPHONE
 extern struct wpa_driver_ops wpa_driver_iphone_ops; /* driver_iphone.m */
 #endif /* CONFIG_DRIVER_IPHONE */
@@ -113,6 +116,9 @@ struct wpa_driver_ops *wpa_supplicant_drivers[] =
 #ifdef CONFIG_DRIVER_OSX
 	&wpa_driver_osx_ops,
 #endif /* CONFIG_DRIVER_OSX */
+#ifdef CONFIG_DRIVER_PS3
+	&wpa_driver_ps3_ops,
+#endif /* CONFIG_DRIVER_PS3 */
 #ifdef CONFIG_DRIVER_IPHONE
 	&wpa_driver_iphone_ops,
 #endif /* CONFIG_DRIVER_IPHONE */

wpa_supplicant/ChangeLog

@@ -3,6 +3,7 @@ ChangeLog for wpa_supplicant
 ????-??-?? - v0.6.4
 	* added support for EAP Sequences in EAP-FAST Phase 2
 	* added support for using TNC with EAP-FAST
+	* added driver_ps3 for the PS3 Linux wireless driver
 
 2008-02-22 - v0.6.3
 	* removed 'nai' and 'eappsk' network configuration variables that were

wpa_supplicant/Makefile

@@ -210,6 +210,12 @@ LDFLAGS += -framework CoreFoundation
 LDFLAGS += -F/System/Library/PrivateFrameworks -framework Apple80211
 endif
 
+ifdef CONFIG_DRIVER_PS3
+CFLAGS += -DCONFIG_DRIVER_PS3 -m64
+OBJS_d += ../src/drivers/driver_ps3.o
+LDFLAGS += -m64
+endif
+
 ifdef CONFIG_DRIVER_IPHONE
 CFLAGS += -DCONFIG_DRIVER_IPHONE
 OBJS_d += ../src/drivers/driver_iphone.o