Index: trunk/src_plugins/lib_netmap/pstklib.c
===================================================================
--- trunk/src_plugins/lib_netmap/pstklib.c	(revision 35183)
+++ trunk/src_plugins/lib_netmap/pstklib.c	(revision 35184)
@@ -52,9 +52,17 @@
 	long n;
 	for(n = 0; n < data->ps_protos.used; n++) {
 		pcb_pstk_proto_t *proto = &data->ps_protos.array[n];
+		pcb_pstklib_entry_t *pe;
 
 		if (!proto->in_use) continue;
+		if (htprp_has(&ctx->protos, proto)) continue;
 
+		pe = calloc(sizeof(pcb_pstklib_entry_t) + ctx->extra_size, 1);
+		pcb_pstk_proto_copy(&pe->proto, proto);
+		pe->id = ctx->next_id++;
+		htprp_set(&ctx->protos, proto, pe);
+		if (ctx->on_new_entry != NULL)
+			ctx->on_new_entry(ctx, pe);
 	}
 }
 
Index: trunk/src_plugins/lib_netmap/pstklib.h
===================================================================
--- trunk/src_plugins/lib_netmap/pstklib.h	(revision 35183)
+++ trunk/src_plugins/lib_netmap/pstklib.h	(revision 35184)
@@ -9,6 +9,7 @@
 	pcb_pstk_proto_t proto;  /* copy of a proto */
 	long id;                 /* unique ID counted from 1 by pcb_pstklib_build */
 	void *user_data;
+	char extra[1];           /* as big as ctx->extra_size */
 } pcb_pstklib_entry_t;
 
 typedef struct pcb_pstklib_s pcb_pstklib_t;
@@ -17,8 +18,11 @@
 	pcb_board_t *pcb;
 	long next_id;
 
+	/* user configuration */
+	void (*on_new_entry)(pcb_pstklib_t *ctx, pcb_pstklib_entry_t *pe); /* optional: if set, called after a new entry is inserted */
 	void (*on_free_entry)(pcb_pstklib_t *ctx, pcb_pstklib_entry_t *pe); /* optional: if set, called before freeing an entry on uninit */
 	void *user_data;
+	int extra_size;
 };
 
 void pcb_pstklib_init(pcb_pstklib_t *ctx, pcb_board_t *pcb);