This patch exposes XenBus functions to Mini-OS applications.

Signed-of-by: John D. Ramsdell <ramsdell@mitre.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/extras/mini-os/include/xenbus.h b/extras/mini-os/include/xenbus.h
index 2bd60898db..485f2e48d6 100644
--- a/extras/mini-os/include/xenbus.h
+++ b/extras/mini-os/include/xenbus.h
@@ -1,6 +1,34 @@
 #ifndef XENBUS_H__
 #define XENBUS_H__
 
+/* Initialize the XenBus system. */
 void init_xenbus(void);
 
+/* Read the value associated with a path.  Returns a malloc'd error
+   string on failure and sets *value to NULL.  On success, *value is
+   set to a malloc'd copy of the value. */
+char *xenbus_read(const char *path, char **value);
+
+/* Associates a value with a path.  Returns a malloc'd error string on
+   failure. */
+char *xenbus_write(const char *path, const char *value);
+
+/* Removes the value associated with a path.  Returns a malloc'd error
+   string on failure. */
+char *xenbus_rm(const char *path);
+
+/* List the contents of a directory.  Returns a malloc'd error string
+   on failure and sets *contents to NULL.  On success, *contents is
+   set to a malloc'd array of pointers to malloc'd strings.  The array
+   is NULL terminated.  May block. */
+char *xenbus_ls(const char *prefix, char ***contents);
+
+/* Reads permissions associated with a path.  Returns a malloc'd error
+   string on failure and sets *value to NULL.  On success, *value is
+   set to a malloc'd copy of the value. */
+char *xenbus_get_perms(const char *path, char **value);
+
+/* Sets the permissions associated with a path.  Returns a malloc'd
+   error string on failure. */
+char *xenbus_set_perms(const char *path, domid_t dom, char perm);
 #endif /* XENBUS_H__ */