diff --git a/include/haproxy/protocol-t.h b/include/haproxy/protocol-t.h
index 499609dc0..5c9793b58 100644
--- a/include/haproxy/protocol-t.h
+++ b/include/haproxy/protocol-t.h
@@ -104,6 +104,9 @@ struct protocol {
 	int (*rx_resume)(struct receiver *rx);          /* try to resume a temporarily suspended receiver */
 	int (*rx_listening)(const struct receiver *rx); /* is the receiver listening ? 0=no, >0=OK, <0=unrecoverable */
 
+	/* default I/O handler */
+	void (*default_iocb)(int fd);                   /* generic I/O handler (typically accept callback) */
+
 	/* functions acting on connections */
 	void (*accept)(int fd);				/* generic accept function */
 	int (*connect)(struct connection *, int flags); /* connect function if any, see below for flags values */
diff --git a/include/haproxy/receiver-t.h b/include/haproxy/receiver-t.h
index 6f267ba12..5b17211c4 100644
--- a/include/haproxy/receiver-t.h
+++ b/include/haproxy/receiver-t.h
@@ -59,6 +59,7 @@ struct receiver {
 	unsigned int flags;              /* receiver options (RX_F_*) */
 	struct protocol *proto;          /* protocol this receiver belongs to */
 	void *owner;                     /* receiver's owner (usually a listener) */
+	void (*iocb)(int fd);            /* generic I/O handler (typically accept callback) */
 	struct rx_settings *settings;    /* points to the settings used by this receiver */
 	struct list proto_list;          /* list in the protocol header */
 	/* warning: this struct is huge, keep it at the bottom */
diff --git a/src/listener.c b/src/listener.c
index baf1844e4..1cad1bb10 100644
--- a/src/listener.c
+++ b/src/listener.c
@@ -588,7 +588,8 @@ void unbind_listener(struct listener *listener)
 /* creates one or multiple listeners for bind_conf <bc> on sockaddr <ss> on port
  * range <portl> to <porth>, and possibly attached to fd <fd> (or -1 for auto
  * allocation). The address family is taken from ss->ss_family, and the protocol
- * passed in <proto> must be usable on this family. The number of jobs and
+ * passed in <proto> must be usable on this family. The protocol's default iocb
+ * is automatically preset as the receivers' iocb. The number of jobs and
  * listeners is automatically increased by the number of listeners created. It
  * returns non-zero on success, zero on error with the error message set in <err>.
  */
@@ -610,6 +611,7 @@ int create_listeners(struct bind_conf *bc, const struct sockaddr_storage *ss,
 		l->bind_conf = bc;
 		l->rx.settings = &bc->settings;
 		l->rx.owner = l;
+		l->rx.iocb = proto->default_iocb;
 		l->rx.fd = fd;
 		memcpy(&l->rx.addr, ss, sizeof(*ss));
 		MT_LIST_INIT(&l->wait_queue);