From fb1adf6e622ce8079aaaae39d08014d0969de6d0 Mon Sep 17 00:00:00 2001
From: phk <phk@FreeBSD.org>
Date: Tue, 22 Apr 2003 21:01:46 +0000
Subject: [PATCH] Implement handling of CONFIG_GEOM OAM request.

---
 sys/geom/geom.h     |  2 ++
 sys/geom/geom_ctl.c | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/sys/geom/geom.h b/sys/geom/geom.h
index 90b7d6043566..f8e227bb57c9 100644
--- a/sys/geom/geom.h
+++ b/sys/geom/geom.h
@@ -60,6 +60,7 @@ struct g_configargs;
 typedef int g_config_t (struct g_configargs *ca);
 typedef int g_ctl_create_geom_t (struct gctl_req *, struct g_class *cp, struct g_provider *pp);
 typedef int g_ctl_destroy_geom_t (struct gctl_req *, struct g_class *cp, struct g_geom *gp);
+typedef int g_ctl_config_geom_t (struct gctl_req *, struct g_geom *gp, const char *verb);
 typedef struct g_geom * g_taste_t (struct g_class *, struct g_provider *,
     int flags);
 #define G_TF_NORMAL		0
@@ -87,6 +88,7 @@ struct g_class {
 	g_config_t		*config;
 	g_ctl_create_geom_t	*create_geom;
 	g_ctl_destroy_geom_t	*destroy_geom;
+	g_ctl_config_geom_t	*config_geom;
 	/*
 	 * The remaning elements are private and classes should use
 	 * the G_CLASS_INITIALIZER macro to initialize them.
diff --git a/sys/geom/geom_ctl.c b/sys/geom/geom_ctl.c
index ab50552ca43b..279156e35de9 100644
--- a/sys/geom/geom_ctl.c
+++ b/sys/geom/geom_ctl.c
@@ -381,6 +381,42 @@ gctl_destroy_geom(struct gctl_req *req)
 	return (error);
 }
 
+static int
+gctl_config_geom(struct gctl_req *req)
+{
+	struct g_class *mp;
+	struct g_geom *gp;
+	char *verb;
+	int error, vlen;
+
+	g_topology_assert();
+	mp = gctl_get_class(req);
+	if (mp == NULL)
+		return (gctl_error(req, "Class not found"));
+	if (mp->config_geom == NULL)
+		return (gctl_error(req, "Class has no config_geom method"));
+	gp = gctl_get_geom(req, mp);
+	if (gp == NULL)
+		return (gctl_error(req, "Geom not specified"));
+	if (gp->class != mp)
+		return (gctl_error(req, "Geom not of specificed class"));
+	verb = gctl_get_param(req, "verb", &vlen);
+	if (verb == NULL)
+		return (gctl_error(req, "Missing verb parameter"));
+	if (vlen < 2) {
+		g_free(verb);
+		return (gctl_error(req, "Too short verb parameter"));
+	}
+	if (verb[vlen - 1] != '\0') {
+		g_free(verb);
+		return (gctl_error(req, "Unterminated verb parameter"));
+	}
+	error = mp->config_geom(req, gp, verb);
+	g_free(verb);
+	g_topology_assert();
+	return (error);
+}
+
 /*
  * Handle ioctl from libgeom::geom_ctl.c
  */
@@ -426,6 +462,9 @@ g_ctl_ioctl_ctl(dev_t dev, u_long cmd, caddr_t data, int fflag, struct thread *t
 	case GCTL_DESTROY_GEOM:
 		error = gctl_destroy_geom(req);
 		break;
+	case GCTL_CONFIG_GEOM:
+		error = gctl_config_geom(req);
+		break;
 	default:
 		error = gctl_error(req, "XXX: TBD");
 		break;