allow the control handling code to send messages back to the parent.

forward IMSG_CTL_RELOAD which ends up not doing anything for now.

4 files changed, 33 insertions, 14 deletions

diff --git a/usr.sbin/hoststated/control.c b/usr.sbin/hoststated/control.c
index f758ee4a6b8..e4f42402748 100644
--- a/usr.sbin/hoststated/control.c
+++ b/usr.sbin/hoststated/control.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: control.c,v 1.14 2007/03/19 10:11:59 henning Exp $	*/
+/*	$OpenBSD: control.c,v 1.15 2007/05/29 23:19:18 pyr Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -42,6 +42,8 @@ struct ctl_connlist ctl_conns;
 struct ctl_conn	*control_connbyfd(int);
 void		 control_close(int);
 
+struct imsgbuf	*ibuf_main = NULL;
+
 int
 control_init(void)
 {
@@ -54,7 +56,6 @@ control_init(void)
 		return (-1);
 	}
 
-	bzero(&sun, sizeof(sun));
 	sun.sun_family = AF_UNIX;
 	if (strlcpy(sun.sun_path, HOSTSTATED_SOCKET,
 	    sizeof(sun.sun_path)) >= sizeof(sun.sun_path)) {
@@ -93,16 +94,18 @@ control_init(void)
 }
 
 int
-control_listen(void)
+control_listen(struct hoststated *env, struct imsgbuf *ibuf)
 {
 
+	ibuf_main = ibuf;
+
 	if (listen(control_state.fd, CONTROL_BACKLOG) == -1) {
 		log_warn("control_listen: listen");
 		return (-1);
 	}
 
 	event_set(&control_state.ev, control_state.fd, EV_READ | EV_PERSIST,
-	    control_accept, NULL);
+	    control_accept, env);
 	event_add(&control_state.ev, NULL);
 
 	return (0);
@@ -122,6 +125,7 @@ control_accept(int listenfd, short event, void *arg)
 	socklen_t		 len;
 	struct sockaddr_un	 sun;
 	struct ctl_conn		*c;
+	struct hoststated	*env = arg;
 
 	len = sizeof(sun);
 	if ((connfd = accept(listenfd,
@@ -141,7 +145,7 @@ control_accept(int listenfd, short event, void *arg)
 	imsg_init(&c->ibuf, connfd, control_dispatch_imsg);
 	c->ibuf.events = EV_READ;
 	event_set(&c->ibuf.ev, c->ibuf.fd, c->ibuf.events,
-	    c->ibuf.handler, &c->ibuf);
+	    c->ibuf.handler, env);
 	event_add(&c->ibuf.ev, NULL);
 
 	TAILQ_INSERT_TAIL(&ctl_conns, c, entry);
@@ -183,6 +187,7 @@ control_dispatch_imsg(int fd, short event, void *arg)
 	struct imsg		 imsg;
 	struct ctl_id		 id;
 	int			 n;
+	struct hoststated	*env = arg;
 
 	if ((c = control_connbyfd(fd)) == NULL) {
 		log_warn("control_dispatch_imsg: fd %d: not found", fd);
@@ -305,8 +310,16 @@ control_dispatch_imsg(int fd, short event, void *arg)
 			}
 			break;
 		case IMSG_CTL_SHUTDOWN:
+			imsg_compose(&c->ibuf, IMSG_CTL_FAIL, 0, 0, NULL, 0);
+			break;
 		case IMSG_CTL_RELOAD:
+			if (env->prefork_relay > 0) {
+				imsg_compose(&c->ibuf, IMSG_CTL_FAIL, 0, 0,
+				    NULL, 0);
+				break;
+			}
 			imsg_compose(&c->ibuf, IMSG_CTL_FAIL, 0, 0, NULL, 0);
+			imsg_compose(ibuf_main, IMSG_CTL_RELOAD, 0, 0, NULL, 0);
 			break;
 		case IMSG_CTL_NOTIFY:
 			if (c->flags & CTL_CONN_NOTIFY) {
diff --git a/usr.sbin/hoststated/hoststated.c b/usr.sbin/hoststated/hoststated.c
index 8e15e31f67f..3608b59fa6e 100644
--- a/usr.sbin/hoststated/hoststated.c
+++ b/usr.sbin/hoststated/hoststated.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hoststated.c,v 1.28 2007/05/29 18:59:53 pyr Exp $	*/
+/*	$OpenBSD: hoststated.c,v 1.29 2007/05/29 23:19:18 pyr Exp $	*/
 
 /*
  * Copyright (c) 2006 Pierre-Yves Ritschard <pyr@spootnik.org>
@@ -241,10 +241,11 @@ main(int argc, char *argv[])
 	    (ibuf_hce = calloc(1, sizeof(struct imsgbuf))) == NULL) 
 		fatal(NULL);
 
-	if (env->prefork_relay > 0 &&
-	    (ibuf_relay = calloc(env->prefork_relay,
-	    sizeof(struct imsgbuf)) == NULL))
-		fatal(NULL);
+	if (env->prefork_relay > 0) {
+		if ((ibuf_relay = calloc(env->prefork_relay,
+		    sizeof(struct imsgbuf))) == NULL) 
+			fatal(NULL);
+	}
 
 	imsg_init(ibuf_pfe, pipe_parent2pfe[0], main_dispatch_pfe);
 	imsg_init(ibuf_hce, pipe_parent2hce[0], main_dispatch_hce);
@@ -474,6 +475,11 @@ main_dispatch_pfe(int fd, short event, void *ptr)
 			memcpy(&demote, imsg.data, sizeof(demote));
 			carp_demote_set(demote.group, demote.level);
 			break;
+		case IMSG_CTL_RELOAD:
+			/*
+			 * so far we only get here if no L7 (relay) is done.
+			 */
+			break;
 		default:
 			log_debug("main_dispatch_pfe: unexpected imsg %d",
 			    imsg.hdr.type);
diff --git a/usr.sbin/hoststated/hoststated.h b/usr.sbin/hoststated/hoststated.h
index 5361acbc55d..4801b76c287 100644
--- a/usr.sbin/hoststated/hoststated.h
+++ b/usr.sbin/hoststated/hoststated.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hoststated.h,v 1.49 2007/05/29 19:05:13 pyr Exp $	*/
+/*	$OpenBSD: hoststated.h,v 1.50 2007/05/29 23:19:18 pyr Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@spootnik.org>
@@ -603,7 +603,7 @@ TAILQ_HEAD(ctl_connlist, ctl_conn);
 
 /* control.c */
 int	control_init(void);
-int	control_listen(void);
+int	control_listen(struct hoststated *, struct imsgbuf *);
 void    control_accept(int, short, void *);
 void    control_dispatch_imsg(int, short, void *);
 void	control_imsg_forward(struct imsg *);
diff --git a/usr.sbin/hoststated/pfe.c b/usr.sbin/hoststated/pfe.c
index a60f06c6b56..f91d0814a8a 100644
--- a/usr.sbin/hoststated/pfe.c
+++ b/usr.sbin/hoststated/pfe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pfe.c,v 1.24 2007/05/28 22:11:33 pyr Exp $	*/
+/*	$OpenBSD: pfe.c,v 1.25 2007/05/29 23:19:18 pyr Exp $	*/
 
 /*
  * Copyright (c) 2006 Pierre-Yves Ritschard <pyr@spootnik.org>
@@ -157,7 +157,7 @@ pfe(struct hoststated *x_env, int pipe_parent2pfe[2], int pipe_parent2hce[2],
 
 	TAILQ_INIT(&ctl_conns);
 
-	if (control_listen() == -1)
+	if (control_listen(env, ibuf_main) == -1)
 		fatalx("pfe: control socket listen failed");
 
 	/* Initial sync */