1 files changed, 140 insertions, 0 deletions
diff --git a/xlators/storage/bd/src/bd.h b/xlators/storage/bd/src/bd.h
new file mode 100644
index 000000000..4d8b89545
--- /dev/null
+++ b/xlators/storage/bd/src/bd.h
@@ -0,0 +1,140 @@
+/*
+  BD translator - Exports Block devices on server side as regular
+  files to client
+
+  Copyright IBM, Corp. 2012
+
+  This file is part of GlusterFS.
+
+  Author:
+  M. Mohan Kumar <mohan@in.ibm.com>
+
+  This file is licensed to you under your choice of the GNU Lesser
+  General Public License, version 3 or any later version (LGPLv3 or
+  later), or the GNU General Public License, version 2 (GPLv2), in all
+  cases as published by the Free Software Foundation.
+*/
+
+#ifndef _BD_H
+#define _BD_H
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "xlator.h"
+#include "mem-types.h"
+
+#define BD_XLATOR "block device mapper xlator"
+#define BACKEND_VG "vg"
+#define GF_XATTR "user.glusterfs"
+#define BD_XATTR GF_XATTR ".bd"
+
+#define BD_LV "lv"
+#define BD_THIN "thin"
+
+#define LVM_RESIZE "/sbin/lvresize"
+#define LVM_CREATE "/sbin/lvcreate"
+
+#define VOL_TYPE "volume.type"
+#define VOL_CAPS "volume.caps"
+
+#define ALIGN_SIZE 4096
+
+#define BD_CAPS_BD               0x01
+#define BD_CAPS_THIN             0x02
+
+#define BD_VALIDATE_MEM_ALLOC(buff, op_errno, label)                \
+        if (!buff) {                                                \
+                op_errno = ENOMEM;                                  \
+                gf_log (this->name, GF_LOG_ERROR, "out of memory"); \
+                goto label;                                         \
+        }
+
+#define BD_VALIDATE_LOCAL_OR_GOTO(local, op_errno, label) \
+        if (!local) {                                     \
+                op_errno = EINVAL;                        \
+                goto label;                               \
+        }
+
+#define BD_STACK_UNWIND(typ, frame, args ...) do {      \
+        bd_local_t *__local = frame->local;             \
+        xlator_t   *__this = frame->this;               \
+                                                        \
+        frame->local = NULL;                            \
+        STACK_UNWIND_STRICT (typ, frame, args);         \
+        if (__local)                                    \
+                bd_local_free (__this, __local);        \
+        } while (0)
+
+typedef char bd_gfid_t[GF_UUID_BUF_SIZE];
+
+enum gf_bd_mem_types_ {
+        gf_bd_private  = gf_common_mt_end + 1,
+        gf_bd_attr,
+        gf_bd_fd,
+        gf_bd_mt_end
+};
+
+/**
+ * bd_fd - internal structure
+ */
+typedef struct bd_fd {
+        int             fd;
+        int32_t         flag;
+} bd_fd_t;
+
+typedef struct bd_priv {
+        lvm_t             handle;
+        char              *vg;
+        char              *pool;
+        int                caps;
+} bd_priv_t;
+
+
+typedef enum bd_type {
+        BD_TYPE_NONE,
+        BD_TYPE_LV,
+} bd_type_t;
+
+typedef struct {
+        struct iatt  iatt;
+        char        *type;
+} bd_attr_t;
+
+typedef struct {
+        dict_t      *dict;
+        bd_attr_t   *bdatt;
+        inode_t     *inode;
+        loc_t        loc;
+        fd_t        *fd;
+        data_t      *data; /* for setxattr */
+} bd_local_t;
+
+typedef struct {
+        char            *lv;
+        struct list_head list;
+} bd_del_entry;
+
+/* Prototypes */
+int bd_inode_ctx_set (inode_t *inode, xlator_t *this, bd_attr_t *ctx);
+int bd_inode_ctx_get (inode_t *inode, xlator_t *this, bd_attr_t **ctx);
+int bd_scan_vg (xlator_t *this, bd_priv_t *priv);
+bd_local_t *bd_local_init (call_frame_t *frame, xlator_t *this);
+void bd_local_free (xlator_t *this, bd_local_t *local);
+int bd_fd_ctx_get (xlator_t *this, fd_t *fd, bd_fd_t **bdfd);
+char *page_aligned_alloc (size_t size, char **aligned_buf);
+int bd_validate_bd_xattr (xlator_t *this, char *bd, char **type,
+                          uint64_t *lv_size, uuid_t uuid);
+uint64_t bd_get_default_extent (bd_priv_t *priv);
+uint64_t bd_adjust_size (bd_priv_t *priv, uint64_t size);
+int bd_create (uuid_t uuid, uint64_t size, char *type, bd_priv_t *priv);
+int bd_resize (bd_priv_t *priv, uuid_t uuid, off_t size);
+int bd_delete_lv (bd_priv_t *priv, const char *lv_name, int *op_errno);
+int bd_snapshot_create (bd_local_t *local, bd_priv_t *priv);
+int bd_clone (bd_local_t *local, bd_priv_t *priv);
+
+int bd_merge (bd_priv_t *priv, uuid_t gfid);
+int bd_get_origin (bd_priv_t *priv, loc_t *loc, fd_t *fd, dict_t *dict);
+#endif