1 files changed, 70 insertions, 0 deletions
diff --git a/sys/fs/p9fs/p9_transport.c b/sys/fs/p9fs/p9_transport.c
new file mode 100644
index 000000000000..c82d81fedcd7
--- /dev/null
+++ b/sys/fs/p9fs/p9_transport.c
@@ -0,0 +1,70 @@
+/*-
+ * Copyright (c) 2022-present Doug Rabson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/kassert.h>
+#include <sys/libkern.h>
+
+#include <fs/p9fs/p9_transport.h>
+
+TAILQ_HEAD(, p9_trans_module) transports;
+
+static void
+p9_transport_init(void)
+{
+
+        TAILQ_INIT(&transports);
+}
+
+SYSINIT(p9_transport, SI_SUB_DRIVERS, SI_ORDER_FIRST, p9_transport_init, NULL);
+
+void
+p9_register_trans(struct p9_trans_module *m)
+{
+
+        TAILQ_INSERT_TAIL(&transports, m, link);
+}
+        
+void
+p9_unregister_trans(struct p9_trans_module *m)
+{
+
+        TAILQ_REMOVE(&transports, m, link);
+}
+
+struct p9_trans_module *
+p9_get_trans_by_name(char *name)
+{
+        struct p9_trans_module *m;
+
+        TAILQ_FOREACH(m, &transports, link) {
+                if (strcmp(m->name, name) == 0)
+                        return (m);
+        }
+        return (NULL);
+}
+