diff --git a/src/Makefile b/src/Makefile
index 51567cb..6d05857 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -10,7 +10,7 @@ LDFLAGS		=
 HEADERS		= kiss.h ax25.h ax25/if.h ax25/macros.h ax25/proto.h \
 		  ax25/frame.h list.h hash.h dict.h
 
-OBJS		= kiss.o ax25.o if.o frame.o list.o hash.o dict.o test.o
+OBJS		= kiss.o ax25.o if.o port.o frame.o list.o hash.o dict.o test.o
 
 PROGRAM		= test
 
diff --git a/src/port.c b/src/port.c
new file mode 100644
index 0000000..587791e
--- /dev/null
+++ b/src/port.c
@@ -0,0 +1,52 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include <patty/ax25.h>
+
+patty_ax25_port *patty_ax25_port_create(patty_ax25_if *iface, const char *callsign, int ssid) {
+    patty_ax25_port *port;
+
+    if ((port = malloc(sizeof(*port))) == NULL) {
+        goto error_malloc_port;
+    }
+
+    port->type  = PATTY_AX25_OBJ_PORT;
+    port->iface = iface;
+    port->ssid  = ssid;
+
+    strncpy(port->callsign, callsign, sizeof(port->callsign));
+
+    return port;
+
+error_malloc_port:
+    return NULL;
+}
+
+void patty_ax25_port_destroy(patty_ax25_port *port) {
+    free(port);
+}
+
+int patty_ax25_each_port(patty_ax25 *ax25, int (*callback)(patty_ax25_port *, void *), void *ctx) {
+    patty_list_iterator *iter;
+    patty_ax25_port *port;
+
+    if ((iter = patty_list_start(ax25->ports)) == NULL) {
+        goto error_list_start;
+    }
+
+    while ((port = patty_list_next(iter)) != NULL) {
+        if (callback(port, ctx) < 0) {
+            goto error_callback;
+        }
+    }
+
+    patty_list_finish(iter);
+
+    return 0;
+
+error_callback:
+    patty_list_finish(iter);
+
+error_list_start:
+    return -1;
+}