[fc] Include port IDs in metadata for received Fibre Channel frames

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/include/ipxe/fc.h

 extern int fc_id_aton ( const char *id_text, struct fc_port_id *id );
 extern const char * fc_ntoa ( const struct fc_name *wwn );
 extern int fc_aton ( const char *wwn_text, struct fc_name *wwn );
+extern struct sockaddr * fc_fill_sockaddr ( struct sockaddr_fc *sa_fc,
+					    struct fc_port_id *id );
 
 /******************************************************************************
  *

src/net/fc.c

 	}
 }
 
+/**
+ * Fill Fibre Channel socket address
+ *
+ * @v sa_fc		Fibre Channel socket address to fill in
+ * @v id		Fibre Channel port ID
+ * @ret sa		Socket address
+ */
+struct sockaddr * fc_fill_sockaddr ( struct sockaddr_fc *sa_fc,
+				     struct fc_port_id *id ) {
+	union {
+		struct sockaddr sa;
+		struct sockaddr_fc fc;
+	} *u = container_of ( sa_fc, typeof ( *u ), fc );
+
+	memset ( sa_fc, 0, sizeof ( *sa_fc ) );
+	sa_fc->sfc_family = AF_FC;
+	memcpy ( &sa_fc->sfc_port_id, id, sizeof ( sa_fc->sfc_port_id ) );
+	return &u->sa;
+}
+
 /******************************************************************************
  *
  * Fibre Channel link state
 	struct fc_port *port = xchg->port;
 	struct fc_frame_header *fchdr = iobuf->data;
 	struct xfer_metadata fc_meta;
+	struct sockaddr_fc src;
+	struct sockaddr_fc dest;
 	int rc;
 
 	/* Record peer exchange ID */
 		fc_meta.flags |= XFER_FL_ABS_OFFSET;
 		fc_meta.offset = ntohl ( fchdr->parameter );
 	}
+	fc_meta.src = fc_fill_sockaddr ( &src, &fchdr->s_id );
+	fc_meta.dest = fc_fill_sockaddr ( &dest, &fchdr->d_id );
 
 	/* Reset timeout */
 	start_timer_fixed ( &xchg->timer, FC_TIMEOUT );

src/net/fcels.c

  * @ret rc		Return status code
  */
 int fc_els_tx ( struct fc_els *els, const void *data, size_t len ) {
-	union {
-		struct sockaddr sa;
-		struct sockaddr_fc fc;
-	} dest;
 	struct xfer_metadata meta;
+	struct sockaddr_fc dest;
 	int rc;
 
 	DBGC2 ( els, FCELS_FMT " transmitting:\n", FCELS_ARGS ( els ) );
 	DBGC2_HDA ( els, 0, data, len );
 
 	/* Construct metadata */
-	memset ( &dest, 0, sizeof ( dest ) );
-	dest.fc.sfc_family = AF_FC;
-	memcpy ( &dest.fc.sfc_port_id, &els->peer_port_id,
-		 sizeof ( dest.fc.sfc_port_id ) );
 	memset ( &meta, 0, sizeof ( meta ) );
 	meta.flags = ( fc_els_is_request ( els ) ?
 		       XFER_FL_OVER : ( XFER_FL_RESPONSE | XFER_FL_OUT ) );
-	meta.dest = &dest.sa;
+	meta.dest = fc_fill_sockaddr ( &dest, &els->peer_port_id );
 
 	/* Transmit frame */
 	if ( ( rc = xfer_deliver_raw_meta ( &els->xchg, data, len,