[PATCH v2 02/14] P2P: Allow P2P IE to be added into NAN SDFs

[Shivani Baranwal <quic_shivbara@xxxxxxxxxxx>]

Extend the NAN Subscribe and Publish methods to allow p2p=1 to be
specified to include P2P attributes in a P2P IE to be added into the NAN
Element Container attribute.

Signed-off-by: Shivani Baranwal <quic_shivbara@xxxxxxxxxxx>
---
 hostapd/ctrl_iface.c            |  16 +++-
 src/ap/nan_usd_ap.c             |   8 +-
 src/ap/nan_usd_ap.h             |   4 +-
 src/common/ieee802_11_defs.h    |  19 +++++
 src/common/nan_de.c             |   7 +-
 src/common/nan_de.h             |   4 +-
 src/p2p/p2p.c                   |  87 +++++++++++++++++++
 src/p2p/p2p.h                   |  57 +++++++++++++
 src/p2p/p2p_build.c             | 182 +++++++++++++++++++++++++++++++++++++++-
 src/p2p/p2p_i.h                 |  51 +++++++++++
 wpa_supplicant/ctrl_iface.c     |  16 +++-
 wpa_supplicant/nan_usd.c        |  16 +++-
 wpa_supplicant/nan_usd.h        |   4 +-
 wpa_supplicant/p2p_supplicant.c |  10 +++
 wpa_supplicant/p2p_supplicant.h |   6 ++
 15 files changed, 466 insertions(+), 21 deletions(-)

diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 39b9ef5..fcdbb5c 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -3705,6 +3705,7 @@ static int hostapd_ctrl_nan_publish(struct hostapd_data *hapd, char *cmd,
 	struct wpabuf *ssi = NULL;
 	int ret = -1;
 	enum nan_service_protocol_type srv_proto_type = 0;
+	bool p2p = false;
 
 	os_memset(&params, 0, sizeof(params));
 	/* USD shall use both solicited and unsolicited transmissions */
@@ -3738,6 +3739,11 @@ static int hostapd_ctrl_nan_publish(struct hostapd_data *hapd, char *cmd,
 			continue;
 		}
 
+		if (os_strcmp(token, "p2p=1") == 0) {
+			p2p = true;
+			continue;
+		}
+
 		if (os_strcmp(token, "solicited=0") == 0) {
 			params.solicited = false;
 			continue;
@@ -3759,7 +3765,7 @@ static int hostapd_ctrl_nan_publish(struct hostapd_data *hapd, char *cmd,
 	}
 
 	publish_id = hostapd_nan_usd_publish(hapd, service_name, srv_proto_type,
-					     ssi, &params);
+					     ssi, &params, p2p);
 	if (publish_id > 0)
 		ret = os_snprintf(buf, buflen, "%d", publish_id);
 fail:
@@ -3842,6 +3848,7 @@ static int hostapd_ctrl_nan_subscribe(struct hostapd_data *hapd, char *cmd,
 	struct wpabuf *ssi = NULL;
 	int ret = -1;
 	enum nan_service_protocol_type srv_proto_type = 0;
+	bool p2p = false;
 
 	os_memset(&params, 0, sizeof(params));
 
@@ -3875,6 +3882,11 @@ static int hostapd_ctrl_nan_subscribe(struct hostapd_data *hapd, char *cmd,
 			continue;
 		}
 
+		if (os_strcmp(token, "p2p=1") == 0) {
+			p2p = true;
+			continue;
+		}
+
 		wpa_printf(MSG_INFO,
 			   "CTRL: Invalid NAN_SUBSCRIBE parameter: %s",
 			   token);
@@ -3883,7 +3895,7 @@ static int hostapd_ctrl_nan_subscribe(struct hostapd_data *hapd, char *cmd,
 
 	subscribe_id = hostapd_nan_usd_subscribe(hapd, service_name,
 						 srv_proto_type, ssi,
-						 &params);
+						 &params, p2p);
 	if (subscribe_id > 0)
 		ret = os_snprintf(buf, buflen, "%d", subscribe_id);
 fail:
diff --git a/src/ap/nan_usd_ap.c b/src/ap/nan_usd_ap.c
index 70c6139..570abfc 100644
--- a/src/ap/nan_usd_ap.c
+++ b/src/ap/nan_usd_ap.c
@@ -192,7 +192,7 @@ void hostapd_nan_usd_flush(struct hostapd_data *hapd)
 int hostapd_nan_usd_publish(struct hostapd_data *hapd, const char *service_name,
 			    enum nan_service_protocol_type srv_proto_type,
 			    const struct wpabuf *ssi,
-			    struct nan_publish_params *params)
+			    struct nan_publish_params *params, bool p2p)
 {
 	int publish_id;
 	struct wpabuf *elems = NULL;
@@ -201,7 +201,7 @@ int hostapd_nan_usd_publish(struct hostapd_data *hapd, const char *service_name,
 		return -1;
 
 	publish_id = nan_de_publish(hapd->nan_de, service_name, srv_proto_type,
-				    ssi, elems, params);
+				    ssi, elems, params, p2p);
 	wpabuf_free(elems);
 	return publish_id;
 }
@@ -231,7 +231,7 @@ int hostapd_nan_usd_subscribe(struct hostapd_data *hapd,
 			      const char *service_name,
 			      enum nan_service_protocol_type srv_proto_type,
 			      const struct wpabuf *ssi,
-			      struct nan_subscribe_params *params)
+			      struct nan_subscribe_params *params, bool p2p)
 {
 	int subscribe_id;
 	struct wpabuf *elems = NULL;
@@ -240,7 +240,7 @@ int hostapd_nan_usd_subscribe(struct hostapd_data *hapd,
 		return -1;
 
 	subscribe_id = nan_de_subscribe(hapd->nan_de, service_name,
-					srv_proto_type, ssi, elems, params);
+					srv_proto_type, ssi, elems, params, p2p);
 	wpabuf_free(elems);
 	return subscribe_id;
 }
diff --git a/src/ap/nan_usd_ap.h b/src/ap/nan_usd_ap.h
index 58ff5fc..0571643 100644
--- a/src/ap/nan_usd_ap.h
+++ b/src/ap/nan_usd_ap.h
@@ -21,7 +21,7 @@ void hostapd_nan_usd_flush(struct hostapd_data *hapd);
 int hostapd_nan_usd_publish(struct hostapd_data *hapd, const char *service_name,
 			    enum nan_service_protocol_type srv_proto_type,
 			    const struct wpabuf *ssi,
-			    struct nan_publish_params *params);
+			    struct nan_publish_params *params, bool p2p);
 void hostapd_nan_usd_cancel_publish(struct hostapd_data *hapd, int publish_id);
 int hostapd_nan_usd_update_publish(struct hostapd_data *hapd, int publish_id,
 				   const struct wpabuf *ssi);
@@ -29,7 +29,7 @@ int hostapd_nan_usd_subscribe(struct hostapd_data *hapd,
 			      const char *service_name,
 			      enum nan_service_protocol_type srv_proto_type,
 			      const struct wpabuf *ssi,
-			      struct nan_subscribe_params *params);
+			      struct nan_subscribe_params *params, bool p2p);
 void hostapd_nan_usd_cancel_subscribe(struct hostapd_data *hapd,
 				      int subscribe_id);
 int hostapd_nan_usd_transmit(struct hostapd_data *hapd, int handle,
diff --git a/src/common/ieee802_11_defs.h b/src/common/ieee802_11_defs.h
index 0fe6310..578ea73 100644
--- a/src/common/ieee802_11_defs.h
+++ b/src/common/ieee802_11_defs.h
@@ -1425,6 +1425,7 @@ struct ieee80211_ampe_ie {
 #define WPS_IE_VENDOR_TYPE 0x0050f204
 #define OUI_WFA 0x506f9a
 #define P2P_IE_VENDOR_TYPE 0x506f9a09
+#define P2P2_IE_VENDOR_TYPE 0x506f9a28
 #define WFD_IE_VENDOR_TYPE 0x506f9a0a
 #define WFD_OUI_TYPE 10
 #define HS20_IE_VENDOR_TYPE 0x506f9a10
@@ -1740,6 +1741,12 @@ enum p2p_attr_id {
 	P2P_ATTR_SESSION_ID = 26,
 	P2P_ATTR_FEATURE_CAPABILITY = 27,
 	P2P_ATTR_PERSISTENT_GROUP = 28,
+	P2P_ATTR_CAPABILITY_EXTENSION = 29,
+	P2P_ATTR_DEVICE_IDENTITY_KEY = 31,
+	P2P_ATTR_DEVICE_IDENTITY_RESOLUTION = 32,
+	P2P_ATTR_PAIRING_AND_BOOTSTRAPPING = 33,
+	P2P_ATTR_PASSWORD = 34,
+	P2P_ATTR_ACTION_FRAME_WRAPPER = 35,
 	P2P_ATTR_VENDOR_SPECIFIC = 221
 };
 
@@ -1764,6 +1771,18 @@ enum p2p_attr_id {
 #define P2P_GROUP_CAPAB_GROUP_FORMATION BIT(6)
 #define P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION BIT(7)
 
+/* P2P Capability Extension attribute - Capability info */
+#define P2P_PCEA_LEN_MASK (BIT(0) | BIT(1) | BIT(2) | BIT(3))
+#define P2P_PCEA_6GHZ BIT(4)
+#define P2P_PCEA_REG_INFO BIT(5)
+#define P2P_PCEA_DFS_OWNER BIT(6)
+#define P2P_PCEA_CLI_REQ_CS BIT(7)
+#define P2P_PCEA_PAIRING_CAPABLE BIT(8)
+#define P2P_PCEA_PAIRING_SETUP_ENABLE BIT(9)
+#define P2P_PCEA_PMK_CACHING BIT(10)
+#define P2P_PCEA_PASN_TYPE BIT(11)
+#define P2P_PCEA_TWT_POWER_MGMT BIT(12)
+
 /* P2PS Coordination Protocol Transport Bitmap */
 #define P2PS_FEATURE_CAPAB_UDP_TRANSPORT BIT(0)
 #define P2PS_FEATURE_CAPAB_MAC_TRANSPORT BIT(1)
diff --git a/src/common/nan_de.c b/src/common/nan_de.c
index 0b54f11..5a68cc9 100644
--- a/src/common/nan_de.c
+++ b/src/common/nan_de.c
@@ -58,6 +58,7 @@ struct nan_de_service {
 	struct os_reltime next_publish_state;
 	struct os_reltime next_publish_chan;
 	unsigned int next_publish_duration;
+	bool is_p2p;
 };
 
 struct nan_de {
@@ -1215,7 +1216,7 @@ const u8 * nan_de_get_service_id(struct nan_de *de, int id)
 int nan_de_publish(struct nan_de *de, const char *service_name,
 		   enum nan_service_protocol_type srv_proto_type,
 		   const struct wpabuf *ssi, const struct wpabuf *elems,
-		   struct nan_publish_params *params)
+		   struct nan_publish_params *params, bool p2p)
 {
 	int publish_id;
 	struct nan_de_service *srv;
@@ -1277,6 +1278,7 @@ int nan_de_publish(struct nan_de *de, const char *service_name,
 	wpa_printf(MSG_DEBUG, "NAN: Assigned new publish handle %d for %s",
 		   publish_id, service_name);
 	srv->id = publish_id;
+	srv->is_p2p = p2p;
 	nan_de_add_srv(de, srv);
 	nan_de_run_timer(de);
 	return publish_id;
@@ -1328,7 +1330,7 @@ int nan_de_update_publish(struct nan_de *de, int publish_id,
 int nan_de_subscribe(struct nan_de *de, const char *service_name,
 		     enum nan_service_protocol_type srv_proto_type,
 		     const struct wpabuf *ssi, const struct wpabuf *elems,
-		     struct nan_subscribe_params *params)
+		     struct nan_subscribe_params *params, bool p2p)
 {
 	int subscribe_id;
 	struct nan_de_service *srv;
@@ -1368,6 +1370,7 @@ int nan_de_subscribe(struct nan_de *de, const char *service_name,
 	wpa_printf(MSG_DEBUG, "NAN: Assigned new subscribe handle %d for %s",
 		   subscribe_id, service_name);
 	srv->id = subscribe_id;
+	srv->is_p2p = p2p;
 	nan_de_add_srv(de, srv);
 	nan_de_run_timer(de);
 	return subscribe_id;
diff --git a/src/common/nan_de.h b/src/common/nan_de.h
index ae77cf3..bdac284 100644
--- a/src/common/nan_de.h
+++ b/src/common/nan_de.h
@@ -106,7 +106,7 @@ struct nan_publish_params {
 int nan_de_publish(struct nan_de *de, const char *service_name,
 		   enum nan_service_protocol_type srv_proto_type,
 		   const struct wpabuf *ssi, const struct wpabuf *elems,
-		   struct nan_publish_params *params);
+		   struct nan_publish_params *params, bool p2p);
 
 void nan_de_cancel_publish(struct nan_de *de, int publish_id);
 
@@ -133,7 +133,7 @@ struct nan_subscribe_params {
 int nan_de_subscribe(struct nan_de *de, const char *service_name,
 		     enum nan_service_protocol_type srv_proto_type,
 		     const struct wpabuf *ssi, const struct wpabuf *elems,
-		     struct nan_subscribe_params *params);
+		     struct nan_subscribe_params *params, bool p2p);
 
 void nan_de_cancel_subscribe(struct nan_de *de, int subscribe_id);
 
diff --git a/src/p2p/p2p.c b/src/p2p/p2p.c
index 8e0fc35..a2d0962 100644
--- a/src/p2p/p2p.c
+++ b/src/p2p/p2p.c
@@ -16,6 +16,7 @@
 #include "common/wpa_ctrl.h"
 #include "crypto/sha256.h"
 #include "crypto/crypto.h"
+#include "crypto/random.h"
 #include "wps/wps_i.h"
 #include "p2p_i.h"
 #include "p2p.h"
@@ -2967,6 +2968,37 @@ bool is_p2p_6ghz_disabled(struct p2p_data *p2p)
 	return false;
 }
 
+int p2p_pairing_info_init(struct p2p_data *p2p)
+{
+	struct p2p_pairing_info *pairing_info;
+
+	if (!p2p) {
+		p2p_dbg(p2p, "P2P data NULL");
+		return -1;
+	}
+
+	pairing_info = os_zalloc(sizeof(struct p2p_pairing_info));
+	if (!pairing_info)
+		return -1;
+
+	pairing_info->enable_pairing_setup =
+				p2p->cfg->pairing_config.enable_pairing_setup;
+	pairing_info->enable_pairing_cache =
+				p2p->cfg->pairing_config.enable_pairing_cache;
+	pairing_info->supported_bootstrap =
+				p2p->cfg->pairing_config.bootstrap_methods;
+
+	/* TODO: Add support to fetch DIK from p2p_supplicant.conf
+	 * DIK should be same across device reboots
+	 */
+	pairing_info->dev_ik.cipher_version = DIRA_CIPHER_VERSION_128;
+	pairing_info->dev_ik.dik_len = DEVICE_IDENTITY_KEY_LEN;
+	random_get_bytes(pairing_info->dev_ik.dik_data,
+			 pairing_info->dev_ik.dik_len);
+	p2p->pairing_info = pairing_info;
+
+	return 0;
+}
 
 struct p2p_data * p2p_init(const struct p2p_config *cfg)
 {
@@ -3023,6 +3055,7 @@ struct p2p_data * p2p_init(const struct p2p_config *cfg)
 	p2p->go_timeout = 100;
 	p2p->client_timeout = 20;
 	p2p->num_p2p_sd_queries = 0;
+	p2p_pairing_info_init(p2p);
 
 	p2p_dbg(p2p, "initialized");
 	p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
@@ -3031,6 +3064,10 @@ struct p2p_data * p2p_init(const struct p2p_config *cfg)
 	return p2p;
 }
 
+void p2p_pairing_info_deinit(struct p2p_data *p2p)
+{
+	os_free(p2p->pairing_info);
+}
 
 void p2p_deinit(struct p2p_data *p2p)
 {
@@ -3066,6 +3103,7 @@ void p2p_deinit(struct p2p_data *p2p)
 	p2p_remove_wps_vendor_extensions(p2p);
 	os_free(p2p->no_go_freq.range);
 	p2p_service_flush_asp(p2p);
+	p2p_pairing_info_deinit(p2p);
 
 	os_free(p2p);
 }
@@ -5688,3 +5726,52 @@ void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value)
 {
 	p2p->allow_6ghz = value;
 }
+
+
+struct wpabuf * p2p_usd_elems(struct p2p_data *p2p)
+{
+	struct wpabuf *buf;
+	u8 *len;
+	u8 group_capab;
+
+	buf = wpabuf_alloc(1000);
+	if (!buf)
+		return NULL;
+
+	len = p2p_buf_add_ie_hdr(buf);
+
+	/* P2P Capability attribute */
+	group_capab = 0;
+	if (p2p->num_groups) {
+		group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
+		if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
+		    (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
+		    p2p->cross_connect)
+			group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
+	}
+	if (p2p->cfg->p2p_intra_bss)
+		group_capab |= P2P_GROUP_CAPAB_INTRA_BSS_DIST;
+	p2p_buf_add_capability(buf, p2p->dev_capab &
+			       ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY,
+			       group_capab);
+
+	/* P2P Device Info attribute */
+	p2p_buf_add_device_info(buf, p2p, NULL);
+
+	p2p_buf_update_ie_hdr(buf, len);
+
+	len = p2p_buf_add_p2p2_ie_hdr(buf);
+	/* P2P Capability Extension attribute */
+	p2p_buf_add_pcea(buf, p2p);
+
+	/* P2P Pairing Bootstrapping Method attribute */
+	p2p_buf_add_pbma(buf, p2p->cfg->pairing_config.bootstrap_methods, NULL,
+			 0, 0);
+
+	/* P2P Device Identity Resolution attribute */
+	p2p_buf_add_dira(buf, p2p);
+
+	p2p_buf_update_p2p2_ie_hdr(buf, len);
+
+	return buf;
+}
diff --git a/src/p2p/p2p.h b/src/p2p/p2p.h
index 27bdac3..d8a5249 100644
--- a/src/p2p/p2p.h
+++ b/src/p2p/p2p.h
@@ -321,6 +321,42 @@ enum p2p_scan_type {
 #define P2P_MAX_WPS_VENDOR_EXT 10
 
 /**
+ * struct p2p_pairing_config - P2P pairing config.
+ */
+struct p2p_pairing_config {
+	/**
+	 * Pairing capable
+	 */
+	u8 pairing_capable;
+
+	/**
+	 * Enable P2P pairing setup
+	 */
+	u32 enable_pairing_setup;
+
+	/**
+	 * Enable pairing cache to allow verification
+	 */
+	u32 enable_pairing_cache;
+
+	/**
+	 * Enable P2P pairing verification with cached NIK/NPK
+	 */
+	u32 enable_pairing_verification;
+
+	/**
+	 * P2P bootstrapping methods supported
+	 */
+	u16 bootstrap_methods;
+
+	/**
+	 * The set of supported PASN type
+	 */
+	u8 pasn_type;
+};
+
+
+/**
  * struct p2p_peer_info - P2P peer information
  */
 struct p2p_peer_info {
@@ -590,6 +626,26 @@ struct p2p_config {
 	unsigned int passphrase_len;
 
 	/**
+	 * p2p_pairing_config - P2P Pairing configuration
+	 */
+	struct p2p_pairing_config pairing_config;
+
+	/**
+	 * reg_info - regulatory info encoding for operation in 6 GHz band
+	 */
+	u8 reg_info;
+
+	/**
+	 * dfs_owner - Enable p2p GO to act as DFS Owner
+	 */
+	bool dfs_owner;
+
+	/**
+	 * twt_power_mgmt - Enable TWT based power mgmt for P2P
+	 */
+	bool twt_power_mgmt;
+
+	/**
 	 * cb_ctx - Context to use with callback functions
 	 */
 	void *cb_ctx;
@@ -2429,5 +2485,6 @@ bool is_p2p_allow_6ghz(struct p2p_data *p2p);
 void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value);
 int p2p_remove_6ghz_channels(struct weighted_pcl *pref_freq_list, int size);
 int p2p_channel_to_freq(int op_class, int channel);
+struct wpabuf * p2p_usd_elems(struct p2p_data *p2p);
 
 #endif /* P2P_H */
diff --git a/src/p2p/p2p_build.c b/src/p2p/p2p_build.c
index e4f40fe..92bcc6b 100644
--- a/src/p2p/p2p_build.c
+++ b/src/p2p/p2p_build.c
@@ -12,10 +12,11 @@
 #include "common/ieee802_11_defs.h"
 #include "common/ieee802_11_common.h"
 #include "common/qca-vendor.h"
+#include "crypto/random.h"
+#include "crypto/sha256.h"
 #include "wps/wps_i.h"
 #include "p2p_i.h"
 
-
 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token)
 {
 	wpabuf_put_u8(buf, WLAN_ACTION_VENDOR_SPECIFIC);
@@ -59,6 +60,24 @@ void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len)
 	*len = (u8 *) wpabuf_put(buf, 0) - len - 1;
 }
 
+u8 * p2p_buf_add_p2p2_ie_hdr(struct wpabuf *buf)
+{
+	u8 *len;
+
+	/* P2P2 IE header */
+	wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
+	len = wpabuf_put(buf, 1); /* IE length to be filled */
+	wpabuf_put_be32(buf, P2P2_IE_VENDOR_TYPE);
+	wpa_printf(MSG_DEBUG, "P2P: * P2P2 IE header");
+	return len;
+}
+
+
+void p2p_buf_update_p2p2_ie_hdr(struct wpabuf *buf, u8 *len)
+{
+	/* Update P2P2 IE Length */
+	*len = (u8 *) wpabuf_put(buf, 0) - len - 1;
+}
 
 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab)
 {
@@ -709,6 +728,167 @@ void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr,
 }
 
 
+void p2p_buf_add_pcea(struct wpabuf *buf, struct p2p_data *p2p)
+{
+	u8 *len;
+	u16 capability_info = 0;
+
+	/* P2P Capability Extension */
+	wpabuf_put_u8(buf, P2P_ATTR_CAPABILITY_EXTENSION);
+	/* Length to be filled */
+	len = wpabuf_put(buf, 2);
+
+	if (!p2p->cfg->p2p_6ghz_disable)
+		capability_info |= P2P_PCEA_6GHZ;
+
+	if (p2p->cfg->reg_info)
+		capability_info |= P2P_PCEA_REG_INFO;
+
+	if (p2p->cfg->dfs_owner)
+		capability_info |= P2P_PCEA_DFS_OWNER;
+
+	if (p2p->cfg->pairing_config.pairing_capable)
+		capability_info |= P2P_PCEA_PAIRING_CAPABLE;
+
+	if (p2p->cfg->pairing_config.enable_pairing_setup)
+		capability_info |= P2P_PCEA_PAIRING_SETUP_ENABLE;
+
+	if (p2p->cfg->pairing_config.enable_pairing_cache)
+		capability_info |= P2P_PCEA_PMK_CACHING;
+
+	if (p2p->cfg->pairing_config.pasn_type)
+		capability_info |= P2P_PCEA_PASN_TYPE;
+
+	if (p2p->cfg->twt_power_mgmt)
+		capability_info |= P2P_PCEA_TWT_POWER_MGMT;
+
+	/* Field length is (n-1), n in octets */
+	capability_info |= (2 - 1) & P2P_PCEA_LEN_MASK;
+	wpabuf_put_le16(buf, capability_info);
+
+	if (capability_info & P2P_PCEA_REG_INFO)
+		wpabuf_put_u8(buf, p2p->cfg->reg_info);
+
+	if (capability_info & P2P_PCEA_PASN_TYPE)
+		wpabuf_put_u8(buf, p2p->cfg->pairing_config.pasn_type);
+
+	/* Update attribute length */
+	WPA_PUT_LE16(len, (u8 *) wpabuf_put(buf, 0) - len - 2);
+
+	wpa_printf(MSG_DEBUG, "P2P: * Capability Extension info=0x%x",
+		   capability_info);
+}
+
+void p2p_buf_add_pbma(struct wpabuf *buf, u16 bootstrap, const u8 *cookie,
+		      size_t cookie_len, int comeback_after)
+{
+	u8 *len;
+
+	if (!bootstrap)
+		return;
+
+	/* P2P Pairing and Bootstrapping methods */
+	wpabuf_put_u8(buf, P2P_ATTR_PAIRING_AND_BOOTSTRAPPING);
+	/* Length to be filled */
+	len = wpabuf_put(buf, 2);
+
+	if (cookie && cookie_len) {
+		if (comeback_after)
+			wpabuf_put_le16(buf, comeback_after);
+		wpabuf_put_u8(buf, cookie_len);
+		wpabuf_put_data(buf, cookie, cookie_len);
+	}
+	wpabuf_put_le16(buf, bootstrap);
+
+	/* Update attribute length */
+	WPA_PUT_LE16(len, (u8 *) wpabuf_put(buf, 0) - len - 2);
+
+	wpa_printf(MSG_DEBUG, "P2P: * Bootstrapping method=0x%x",
+		   bootstrap);
+}
+
+static int p2p_derive_nonce_tag(struct p2p_data *p2p)
+{
+	int ret;
+	u8 dira_nonce[DEVICE_IDENTITY_NONCE_LEN];
+	u8 dira_tag[DEVICE_MAX_HASH_LEN];
+	u8 data[DIR_STR_LEN + DEVICE_IDENTITY_NONCE_LEN + ETH_ALEN];
+	struct p2p_id_key *dev_ik;
+
+	dev_ik = &p2p->pairing_info->dev_ik;
+
+	if (dev_ik->cipher_version != DIRA_CIPHER_VERSION_128) {
+		wpa_printf(MSG_ERROR, "Unsupported DIRA Cipher version = %d",
+			   dev_ik->cipher_version);
+		return -1;
+	}
+
+	if (dev_ik->dik_len != DEVICE_IDENTITY_KEY_LEN) {
+		wpa_printf(MSG_ERROR, "Invalid DIK length = %ld",
+			   dev_ik->dik_len);
+		return -1;
+	}
+
+	if (dev_ik->dira_nonce_len && dev_ik->dira_tag_len)
+		return 0;
+
+	os_memset(data, 0, sizeof(data));
+	os_memset(dira_tag, 0, sizeof(dira_tag));
+
+	ret = random_get_bytes(dira_nonce, DEVICE_IDENTITY_NONCE_LEN);
+	if (ret < 0) {
+		wpa_printf(MSG_ERROR, "Get DIRA nonce Failed, err = %d", ret);
+		return -1;
+	}
+
+	os_memcpy(data, "DIR", DIR_STR_LEN);
+	os_memcpy(&data[DIR_STR_LEN], p2p->cfg->dev_addr, ETH_ALEN);
+	os_memcpy(&data[DIR_STR_LEN + ETH_ALEN], dira_nonce,
+		  DEVICE_IDENTITY_NONCE_LEN);
+
+	ret = hmac_sha256(dev_ik->dik_data, DEVICE_IDENTITY_KEY_LEN, data,
+			  sizeof(data), dira_tag);
+	if (ret < 0) {
+		wpa_printf(MSG_ERROR, "Could not derive DIRA tag, err = %d", ret);
+		return -1;
+	}
+
+	dev_ik->dira_nonce_len = DEVICE_IDENTITY_NONCE_LEN;
+	os_memcpy(dev_ik->dira_nonce, dira_nonce, DEVICE_IDENTITY_NONCE_LEN);
+	dev_ik->dira_tag_len = DEVICE_IDENTITY_TAG_LEN;
+	os_memcpy(dev_ik->dira_tag, dira_tag, DEVICE_IDENTITY_TAG_LEN);
+	return 0;
+}
+
+void p2p_buf_add_dira(struct wpabuf *buf, struct p2p_data *p2p)
+{
+	u8 *len;
+	struct p2p_id_key *dev_ik;
+
+	if (!p2p->cfg->pairing_config.pairing_capable ||
+	    !p2p->cfg->pairing_config.enable_pairing_cache ||
+	    !p2p->cfg->pairing_config.enable_pairing_verification)
+		return;
+
+	if (p2p_derive_nonce_tag(p2p))
+		return;
+
+	dev_ik = &p2p->pairing_info->dev_ik;
+	/* P2P DIRA */
+	wpabuf_put_u8(buf, P2P_ATTR_DEVICE_IDENTITY_RESOLUTION);
+	/* Length to be filled */
+	len = wpabuf_put(buf, 2);
+
+	wpabuf_put_u8(buf, dev_ik->cipher_version);
+	wpabuf_put_data(buf, dev_ik->dira_nonce, dev_ik->dira_nonce_len);
+	wpabuf_put_data(buf, dev_ik->dira_tag, dev_ik->dira_tag_len);
+
+	/* Update attribute length */
+	WPA_PUT_LE16(len, (u8 *)wpabuf_put(buf, 0) - len - 2);
+
+	wpa_printf(MSG_DEBUG, "P2P: * Added DIRA");
+}
+
 static int p2p_add_wps_string(struct wpabuf *buf, enum wps_attribute attr,
 			      const char *val)
 {
diff --git a/src/p2p/p2p_i.h b/src/p2p/p2p_i.h
index 0a487e0..0e24e51 100644
--- a/src/p2p/p2p_i.h
+++ b/src/p2p/p2p_i.h
@@ -14,6 +14,11 @@
 #include "p2p.h"
 
 #define P2P_GO_NEG_CNF_MAX_RETRY_COUNT 1
+#define DEVICE_IDENTITY_KEY_LEN 16
+#define DEVICE_IDENTITY_TAG_LEN 8
+#define DEVICE_IDENTITY_NONCE_LEN 8
+#define DEVICE_MAX_HASH_LEN 32
+#define DIR_STR_LEN 3
 
 /*
  * A threshold (in seconds) to prefer a direct Probe Response frame from a P2P
@@ -160,6 +165,44 @@ struct p2p_sd_query {
 	struct wpabuf *tlvs;
 };
 
+/* DIRA Cipher versions */
+#define DIRA_CIPHER_VERSION_128 0
+
+/* This is p2p device identity key params */
+struct p2p_id_key {
+	/* AKMP used for DevIK derviation */
+	int akmp;
+	/* cipher version type */
+	int cipher_version;
+	/* DevIK expiration time in seconds */
+	u32 expiration;
+	/* buffer to hold the DevIK */
+	u8 dik_data[DEVICE_IDENTITY_KEY_LEN];
+	/* length of DevIK */
+	size_t dik_len;
+	/* nonce used in DIRA attribute */
+	u8 dira_nonce[DEVICE_IDENTITY_NONCE_LEN];
+	/* length of nonce */
+	size_t dira_nonce_len;
+	/* tag computed for nonce using NIK */
+	u8 dira_tag[DEVICE_IDENTITY_TAG_LEN];
+	/* length of tag */
+	size_t dira_tag_len;
+};
+
+struct p2p_pairing_info {
+	/* P2P device own address */
+	u8 own_addr[ETH_ALEN];
+	/* device capability to enable pairing setup */
+	u32 enable_pairing_setup;
+	/* device capability to enable pairing cache */
+	u32 enable_pairing_cache;
+	/* device supported bootstrapping */
+	u16 supported_bootstrap;
+	/* p2p device identity key info */
+	struct p2p_id_key dev_ik;
+};
+
 /**
  * struct p2p_data - P2P module data (internal to P2P module)
  */
@@ -554,6 +597,8 @@ struct p2p_data {
 	bool p2p_6ghz_capable;
 	bool include_6ghz;
 	bool allow_6ghz;
+
+	struct p2p_pairing_info *pairing_info;
 };
 
 /**
@@ -748,11 +793,13 @@ void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
 				   u8 dialog_token);
 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf);
+u8 * p2p_buf_add_p2p2_ie_hdr(struct wpabuf *buf);
 void p2p_buf_add_status(struct wpabuf *buf, u8 status);
 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p,
 			     struct p2p_device *peer);
 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr);
 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len);
+void p2p_buf_update_p2p2_ie_hdr(struct wpabuf *buf, u8 *len);
 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab);
 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent);
 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country,
@@ -788,6 +835,10 @@ void p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len,
 				    const u8 *mask);
 void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr,
 				       const u8 *ssid, size_t ssid_len);
+void p2p_buf_add_pcea(struct wpabuf *buf, struct p2p_data *p2p);
+void p2p_buf_add_pbma(struct wpabuf *buf, u16 bootstrap, const u8 *cookie,
+		      size_t cookie_len, int comeback_after);
+void p2p_buf_add_dira(struct wpabuf *buf, struct p2p_data *p2p);
 int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id,
 		     int all_attr);
 void p2p_buf_add_pref_channel_list(struct wpabuf *buf,
diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index f939583..3403ce0 100644
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -12207,6 +12207,7 @@ static int wpas_ctrl_nan_publish(struct wpa_supplicant *wpa_s, char *cmd,
 	int ret = -1;
 	enum nan_service_protocol_type srv_proto_type = 0;
 	int *freq_list = NULL;
+	bool p2p = false;
 
 	os_memset(&params, 0, sizeof(params));
 	/* USD shall use both solicited and unsolicited transmissions */
@@ -12267,6 +12268,11 @@ static int wpas_ctrl_nan_publish(struct wpa_supplicant *wpa_s, char *cmd,
 			continue;
 		}
 
+		if (os_strcmp(token, "p2p=1") == 0) {
+			p2p = true;
+			continue;
+		}
+
 		if (os_strcmp(token, "solicited=0") == 0) {
 			params.solicited = false;
 			continue;
@@ -12288,7 +12294,7 @@ static int wpas_ctrl_nan_publish(struct wpa_supplicant *wpa_s, char *cmd,
 	}
 
 	publish_id = wpas_nan_usd_publish(wpa_s, service_name, srv_proto_type,
-					  ssi, &params);
+					  ssi, &params, p2p);
 	if (publish_id > 0)
 		ret = os_snprintf(buf, buflen, "%d", publish_id);
 fail:
@@ -12372,6 +12378,7 @@ static int wpas_ctrl_nan_subscribe(struct wpa_supplicant *wpa_s, char *cmd,
 	struct wpabuf *ssi = NULL;
 	int ret = -1;
 	enum nan_service_protocol_type srv_proto_type = 0;
+	bool p2p = false;
 
 	os_memset(&params, 0, sizeof(params));
 	params.freq = NAN_USD_DEFAULT_FREQ;
@@ -12411,6 +12418,11 @@ static int wpas_ctrl_nan_subscribe(struct wpa_supplicant *wpa_s, char *cmd,
 			continue;
 		}
 
+		if (os_strcmp(token, "p2p=1") == 0) {
+			p2p = true;
+			continue;
+		}
+
 		wpa_printf(MSG_INFO,
 			   "CTRL: Invalid NAN_SUBSCRIBE parameter: %s",
 			   token);
@@ -12419,7 +12431,7 @@ static int wpas_ctrl_nan_subscribe(struct wpa_supplicant *wpa_s, char *cmd,
 
 	subscribe_id = wpas_nan_usd_subscribe(wpa_s, service_name,
 					      srv_proto_type, ssi,
-					      &params);
+					      &params, p2p);
 	if (subscribe_id > 0)
 		ret = os_snprintf(buf, buflen, "%d", subscribe_id);
 fail:
diff --git a/wpa_supplicant/nan_usd.c b/wpa_supplicant/nan_usd.c
index 3fea540..0b32949 100644
--- a/wpa_supplicant/nan_usd.c
+++ b/wpa_supplicant/nan_usd.c
@@ -13,6 +13,7 @@
 #include "wpa_supplicant_i.h"
 #include "offchannel.h"
 #include "driver_i.h"
+#include "p2p_supplicant.h"
 #include "nan_usd.h"
 
 
@@ -386,7 +387,7 @@ void wpas_nan_usd_flush(struct wpa_supplicant *wpa_s)
 int wpas_nan_usd_publish(struct wpa_supplicant *wpa_s, const char *service_name,
 			 enum nan_service_protocol_type srv_proto_type,
 			 const struct wpabuf *ssi,
-			 struct nan_publish_params *params)
+			 struct nan_publish_params *params, bool p2p)
 {
 	int publish_id;
 	struct wpabuf *elems = NULL;
@@ -394,8 +395,11 @@ int wpas_nan_usd_publish(struct wpa_supplicant *wpa_s, const char *service_name,
 	if (!wpa_s->nan_de)
 		return -1;
 
+	if (p2p)
+		elems = wpas_p2p_usd_elems(wpa_s);
+
 	publish_id = nan_de_publish(wpa_s->nan_de, service_name, srv_proto_type,
-				    ssi, elems, params);
+				    ssi, elems, params, p2p);
 	if (publish_id <= 0)
 		goto fail;
 	if ((wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_NAN_OFFLOAD) &&
@@ -443,7 +447,7 @@ int wpas_nan_usd_subscribe(struct wpa_supplicant *wpa_s,
 			   const char *service_name,
 			   enum nan_service_protocol_type srv_proto_type,
 			   const struct wpabuf *ssi,
-			   struct nan_subscribe_params *params)
+			   struct nan_subscribe_params *params, bool p2p)
 {
 	int subscribe_id;
 	struct wpabuf *elems = NULL;
@@ -451,8 +455,12 @@ int wpas_nan_usd_subscribe(struct wpa_supplicant *wpa_s,
 	if (!wpa_s->nan_de)
 		return -1;
 
+	if (p2p)
+		elems = wpas_p2p_usd_elems(wpa_s);
+
 	subscribe_id = nan_de_subscribe(wpa_s->nan_de, service_name,
-					srv_proto_type, ssi, elems, params);
+					srv_proto_type, ssi, elems, params,
+					p2p);
 	if (subscribe_id <= 0)
 		goto fail;
 	if ((wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_NAN_OFFLOAD) &&
diff --git a/wpa_supplicant/nan_usd.h b/wpa_supplicant/nan_usd.h
index 149ac9e..ecb4973 100644
--- a/wpa_supplicant/nan_usd.h
+++ b/wpa_supplicant/nan_usd.h
@@ -21,7 +21,7 @@ void wpas_nan_usd_flush(struct wpa_supplicant *wpa_s);
 int wpas_nan_usd_publish(struct wpa_supplicant *wpa_s, const char *service_name,
 			 enum nan_service_protocol_type srv_proto_type,
 			 const struct wpabuf *ssi,
-			 struct nan_publish_params *params);
+			 struct nan_publish_params *params, bool p2p);
 void wpas_nan_usd_cancel_publish(struct wpa_supplicant *wpa_s, int publish_id);
 int wpas_nan_usd_update_publish(struct wpa_supplicant *wpa_s, int publish_id,
 				const struct wpabuf *ssi);
@@ -29,7 +29,7 @@ int wpas_nan_usd_subscribe(struct wpa_supplicant *wpa_s,
 			   const char *service_name,
 			   enum nan_service_protocol_type srv_proto_type,
 			   const struct wpabuf *ssi,
-			   struct nan_subscribe_params *params);
+			   struct nan_subscribe_params *params, bool p2p);
 void wpas_nan_usd_cancel_subscribe(struct wpa_supplicant *wpa_s,
 				   int subscribe_id);
 int wpas_nan_usd_transmit(struct wpa_supplicant *wpa_s, int handle,
diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c
index 70025f1..2df2d10 100644
--- a/wpa_supplicant/p2p_supplicant.c
+++ b/wpa_supplicant/p2p_supplicant.c
@@ -10242,3 +10242,13 @@ int wpas_p2p_lo_stop(struct wpa_supplicant *wpa_s)
 	wpa_s->p2p_lo_started = 0;
 	return ret;
 }
+
+
+struct wpabuf * wpas_p2p_usd_elems(struct wpa_supplicant *wpa_s)
+{
+	struct p2p_data *p2p = wpa_s->global->p2p;
+
+	if (wpa_s->global->p2p_disabled || !p2p)
+		return NULL;
+	return p2p_usd_elems(p2p);
+}
diff --git a/wpa_supplicant/p2p_supplicant.h b/wpa_supplicant/p2p_supplicant.h
index d71f770..441e063 100644
--- a/wpa_supplicant/p2p_supplicant.h
+++ b/wpa_supplicant/p2p_supplicant.h
@@ -225,6 +225,7 @@ int wpas_p2p_lo_start(struct wpa_supplicant *wpa_s, unsigned int freq,
 		      unsigned int count);
 int wpas_p2p_lo_stop(struct wpa_supplicant *wpa_s);
 int wpas_p2p_mac_setup(struct wpa_supplicant *wpa_s);
+struct wpabuf * wpas_p2p_usd_elems(struct wpa_supplicant *wpa_s);
 
 #else /* CONFIG_P2P */
 
@@ -351,6 +352,11 @@ static inline int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s,
 	return 0;
 }
 
+static inline struct wpabuf * wpas_p2p_usd_elems(struct wpa_supplicant *wpa_s)
+{
+	return NULL;
+}
+
 #endif /* CONFIG_P2P */
 
 #endif /* P2P_SUPPLICANT_H */
-- 
2.7.4


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