1 files changed, 130 insertions, 0 deletions
diff --git a/agents/virt/include/server_plugin.h b/agents/virt/include/server_plugin.h
new file mode 100644
index 0000000..04ceae0
--- /dev/null
+++ b/agents/virt/include/server_plugin.h
@@ -0,0 +1,130 @@
+/*  */
+
+#ifndef _SERVER_PLUGIN_H
+#define _SERVER_PLUGIN_H
+
+#include "config.h"
+
+#define PLUGIN_VERSION_LISTENER ((double)0.3)
+#define PLUGIN_VERSION_BACKEND  ((double)0.2)
+
+typedef void * listener_context_t;
+typedef void * backend_context_t;
+
+/* These callbacks hand requests off to the
+   appropriate backend. */
+   
+/* Do nothing.  Returns 1 (failure) to caller */
+typedef int (*fence_null_callback)(const char *vm_name,
+				   void *priv);
+
+/* Turn the VM 'off'.  Returns 0 to caller if successful or
+   nonzero if unsuccessful. */
+typedef int (*fence_off_callback)(const char *vm_name, const char *src,
+				  uint32_t seqno, void *priv);
+
+/* Turn the VM 'on'.  Returns 0 to caller if successful or
+   nonzero if unsuccessful. */
+typedef int (*fence_on_callback)(const char *vm_name, const char *src,
+				 uint32_t seqno, void *priv);
+
+/* Reboot a VM.  Returns 0 to caller if successful or
+   nonzero if unsuccessful. */
+typedef int (*fence_reboot_callback)(const char *vm_name, const char *src,
+				     uint32_t seqno, void *priv);
+
+/* Get status of a VM.  Returns 0 to caller if VM is alive or
+   nonzero if VM is not alive. */
+typedef int (*fence_status_callback)(const char *vm_name,
+				     void *priv);
+
+/* Get status of backend.  Returns 0 to caller if backend
+   is responding to requests. */
+typedef int (*fence_devstatus_callback)(void *priv);
+
+
+/* VMs available to fence.  Returns 0 to caller if backend
+   is responding to requests and a host list can be produced */
+typedef int (*hostlist_callback)(const char *vm_name, const char *uuid,
+				 int state, void *arg);
+typedef int (*fence_hostlist_callback)(hostlist_callback cb,
+				       void *arg, void *priv);
+
+typedef int (*backend_init_fn)(backend_context_t *c,
+    			       config_object_t *config);
+typedef int (*backend_cleanup_fn)(backend_context_t c);
+
+typedef struct _fence_callbacks {
+	fence_null_callback null;
+	fence_off_callback off;
+	fence_on_callback on;
+	fence_reboot_callback reboot;
+	fence_status_callback status;
+	fence_devstatus_callback devstatus;
+	fence_hostlist_callback hostlist;
+} fence_callbacks_t;
+
+typedef struct backend_plugin {
+	const char *name;
+	const char *version;
+	const fence_callbacks_t *callbacks;
+	backend_init_fn init;
+	backend_cleanup_fn cleanup;
+} backend_plugin_t;
+
+double backend_plugin_version(void);
+const backend_plugin_t * backend_plugin_info(void);
+
+#define BACKEND_VER_SYM backend_plugin_version
+#define BACKEND_INFO_SYM backend_plugin_info
+#define BACKEND_VER_STR "backend_plugin_version"
+#define BACKEND_INFO_STR "backend_plugin_info"
+
+typedef int (*listener_init_fn)(listener_context_t *c,
+				const fence_callbacks_t *cb,
+				config_object_t *config, 
+				map_object_t *map,
+				void *priv);
+typedef int (*listener_dispatch_fn)(listener_context_t c,
+				    struct timeval *timeout);
+typedef int (*listener_cleanup_fn)(listener_context_t c);
+
+
+typedef struct listener_plugin {
+	const char *name;
+	const char *version;
+	listener_init_fn init;
+	listener_dispatch_fn dispatch;
+	listener_cleanup_fn cleanup;
+} listener_plugin_t;
+
+double listener_plugin_version(void);
+const listener_plugin_t * listener_plugin_info(void);
+
+#define LISTENER_VER_SYM listener_plugin_version
+#define LISTENER_INFO_SYM listener_plugin_info
+#define LISTENER_VER_STR "listener_plugin_version"
+#define LISTENER_INFO_STR "listener_plugin_info"
+
+typedef enum {
+	PLUGIN_NONE = 0,
+	PLUGIN_LISTENER = 1,
+	PLUGIN_BACKEND = 2
+} plugin_type_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+const backend_plugin_t *plugin_find_backend(const char *name);
+const listener_plugin_t *plugin_find_listener(const char *name);
+
+void plugin_dump(void);
+int plugin_load(const char *filename);
+void plugin_unload(void);
+int plugin_search(const char *pathname);
+
+#ifdef __cplusplus
+}
+#endif
+#endif