822 			    struct wpabuf *msg, u8 exchange_type,  in ikev2_build_hdr()  argument
830 	hdr = wpabuf_put(msg, sizeof(*hdr));  in ikev2_build_hdr()
842 			    struct wpabuf *msg, u8 next_payload)  in ikev2_build_sar1()  argument
852 	phdr = wpabuf_put(msg, sizeof(*phdr));  in ikev2_build_sar1()
856 	p = wpabuf_put(msg, sizeof(*p));  in ikev2_build_sar1()
861 	t = wpabuf_put(msg, sizeof(*t));  in ikev2_build_sar1()
867 		wpabuf_put_be16(msg, 0x800e); /* AF=1, AttrType=14 */  in ikev2_build_sar1()
868 		wpabuf_put_be16(msg, 128); /* 128-bit key */  in ikev2_build_sar1()
870 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) t;  in ikev2_build_sar1()
873 	t = wpabuf_put(msg, sizeof(*t));  in ikev2_build_sar1()
879 	t = wpabuf_put(msg, sizeof(*t));  in ikev2_build_sar1()
885 	t = wpabuf_put(msg, sizeof(*t));  in ikev2_build_sar1()
890 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) p;  in ikev2_build_sar1()
893 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) phdr;  in ikev2_build_sar1()
901 			   struct wpabuf *msg, u8 next_payload)  in ikev2_build_ker()  argument
916 	phdr = wpabuf_put(msg, sizeof(*phdr));  in ikev2_build_ker()
920 	wpabuf_put_be16(msg, data->proposal.dh); /* DH Group # */  in ikev2_build_ker()
921 	wpabuf_put(msg, 2); /* RESERVED */  in ikev2_build_ker()
926 	wpabuf_put(msg, data->dh->prime_len - wpabuf_len(pv));  in ikev2_build_ker()
927 	wpabuf_put_buf(msg, pv);  in ikev2_build_ker()
930 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) phdr;  in ikev2_build_ker()
937 			  struct wpabuf *msg, u8 next_payload)  in ikev2_build_nr()  argument
945 	phdr = wpabuf_put(msg, sizeof(*phdr));  in ikev2_build_nr()
948 	wpabuf_put_data(msg, data->r_nonce, data->r_nonce_len);  in ikev2_build_nr()
949 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) phdr;  in ikev2_build_nr()
956 			   struct wpabuf *msg, u8 next_payload)  in ikev2_build_idr()  argument
969 	phdr = wpabuf_put(msg, sizeof(*phdr));  in ikev2_build_idr()
972 	wpabuf_put_u8(msg, ID_KEY_ID);  in ikev2_build_idr()
973 	wpabuf_put(msg, 3); /* RESERVED */  in ikev2_build_idr()
974 	wpabuf_put_data(msg, data->IDr, data->IDr_len);  in ikev2_build_idr()
975 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) phdr;  in ikev2_build_idr()
982 			    struct wpabuf *msg, u8 next_payload)  in ikev2_build_auth()  argument
995 	phdr = wpabuf_put(msg, sizeof(*phdr));  in ikev2_build_auth()
998 	wpabuf_put_u8(msg, AUTH_SHARED_KEY_MIC);  in ikev2_build_auth()
999 	wpabuf_put(msg, 3); /* RESERVED */  in ikev2_build_auth()
1008 				   wpabuf_put(msg, prf->hash_len)) < 0) {  in ikev2_build_auth()
1015 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) phdr;  in ikev2_build_auth()
1022 				    struct wpabuf *msg, u8 next_payload)  in ikev2_build_notification()  argument
1036 	phdr = wpabuf_put(msg, sizeof(*phdr));  in ikev2_build_notification()
1039 	wpabuf_put_u8(msg, 0); /* Protocol ID: no existing SA */  in ikev2_build_notification()
1040 	wpabuf_put_u8(msg, 0); /* SPI Size */  in ikev2_build_notification()
1041 	wpabuf_put_be16(msg, data->error_type);  in ikev2_build_notification()
1050 		wpabuf_put_be16(msg, data->proposal.dh);  in ikev2_build_notification()
1063 	plen = (u8 *) wpabuf_put(msg, 0) - (u8 *) phdr;  in ikev2_build_notification()
1071 	struct wpabuf *msg;  in ikev2_build_sa_init()  local
1085 	msg = wpabuf_alloc(sizeof(struct ikev2_hdr) + data->IDr_len + 1500);  in ikev2_build_sa_init()
1086 	if (msg == NULL)  in ikev2_build_sa_init()
1089 	ikev2_build_hdr(data, msg, IKE_SA_INIT, IKEV2_PAYLOAD_SA, 0);  in ikev2_build_sa_init()
1090 	if (ikev2_build_sar1(data, msg, IKEV2_PAYLOAD_KEY_EXCHANGE) ||  in ikev2_build_sa_init()
1091 	    ikev2_build_ker(data, msg, IKEV2_PAYLOAD_NONCE) ||  in ikev2_build_sa_init()
1092 	    ikev2_build_nr(data, msg, data->peer_auth == PEER_AUTH_SECRET ?  in ikev2_build_sa_init()
1095 		wpabuf_free(msg);  in ikev2_build_sa_init()
1100 		wpabuf_free(msg);  in ikev2_build_sa_init()
1112 			wpabuf_free(msg);  in ikev2_build_sa_init()
1119 					  &data->keys, 0, msg, plain,  in ikev2_build_sa_init()
1122 			wpabuf_free(msg);  in ikev2_build_sa_init()
1128 	ikev2_update_hdr(msg);  in ikev2_build_sa_init()
1130 	wpa_hexdump_buf(MSG_MSGDUMP, "IKEV2: Sending message (SA_INIT)", msg);  in ikev2_build_sa_init()
1135 	data->r_sign_msg = wpabuf_dup(msg);  in ikev2_build_sa_init()
1137 	return msg;  in ikev2_build_sa_init()
1143 	struct wpabuf *msg, *plain;  in ikev2_build_sa_auth()  local
1147 	msg = wpabuf_alloc(sizeof(struct ikev2_hdr) + data->IDr_len + 1000);  in ikev2_build_sa_auth()
1148 	if (msg == NULL)  in ikev2_build_sa_auth()
1150 	ikev2_build_hdr(data, msg, IKE_SA_AUTH, IKEV2_PAYLOAD_ENCRYPTED, 1);  in ikev2_build_sa_auth()
1154 		wpabuf_free(msg);  in ikev2_build_sa_auth()
1161 				  &data->keys, 0, msg, plain,  in ikev2_build_sa_auth()
1164 		wpabuf_free(msg);  in ikev2_build_sa_auth()
1169 	wpa_hexdump_buf(MSG_MSGDUMP, "IKEV2: Sending message (SA_AUTH)", msg);  in ikev2_build_sa_auth()
1173 	return msg;  in ikev2_build_sa_auth()
1179 	struct wpabuf *msg;  in ikev2_build_notify()  local
1181 	msg = wpabuf_alloc(sizeof(struct ikev2_hdr) + 1000);  in ikev2_build_notify()
1182 	if (msg == NULL)  in ikev2_build_notify()
1188 			wpabuf_free(msg);  in ikev2_build_notify()
1191 		ikev2_build_hdr(data, msg, IKE_SA_AUTH,  in ikev2_build_notify()
1197 					  &data->keys, 0, msg, plain,  in ikev2_build_notify()
1200 			wpabuf_free(msg);  in ikev2_build_notify()
1207 		ikev2_build_hdr(data, msg, IKE_SA_INIT,  in ikev2_build_notify()
1209 		if (ikev2_build_notification(data, msg,  in ikev2_build_notify()
1211 			wpabuf_free(msg);  in ikev2_build_notify()
1217 	ikev2_update_hdr(msg);  in ikev2_build_notify()
1220 			msg);  in ikev2_build_notify()
1222 	return msg;  in ikev2_build_notify()