nfs: Add generic nfs translator

Signed-off-by: Shehjar Tikoo <shehjart@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 399 (NFS translator with Mount v3 and NFS v3 support)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=399

1 files changed, 98 insertions, 0 deletions

diff --git a/xlators/nfs/server/src/nfs.h b/xlators/nfs/server/src/nfs.h
new file mode 100644
index 000000000..b49738345
--- /dev/null
+++ b/xlators/nfs/server/src/nfs.h
@@ -0,0 +1,98 @@
+/*
+  Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
+  This file is part of GlusterFS.
+
+  GlusterFS is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published
+  by the Free Software Foundation; either version 3 of the License,
+  or (at your option) any later version.
+
+  GlusterFS is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see
+  <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __NFS_H__
+#define __NFS_H__
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "rpcsvc.h"
+#include "dict.h"
+#include "xlator.h"
+
+#define GF_NFS                  "nfs"
+
+#define GF_NFS_CONCURRENT_OPS_MULT     15
+
+#define GF_NFS_INODE_LRU_MULT           6000
+
+#define GF_RPC_MIN_THREADS      1
+#define GF_RPC_MAX_THREADS      16
+
+#define GF_NFS_DEFAULT_MEMFACTOR        15
+#define GF_NFS_MIN_MEMFACTOR            1
+#define GF_NFS_MAX_MEMFACTOR            30
+
+/* Callback into a version-specific NFS protocol.
+ * The return type is used by the nfs.c code to register the protocol.
+ * with the RPC service.
+ */
+typedef rpcsvc_program_t *(*nfs_version_initer_t) (xlator_t *nfsx);
+
+/* List of version-specific protocol initiators */
+struct nfs_initer_list {
+        struct list_head list;
+        nfs_version_initer_t    init;
+        rpcsvc_program_t        *program;
+};
+
+
+struct nfs_state {
+        rpcsvc_t                *rpcsvc;
+        struct list_head        versions;
+        struct mem_pool         *foppool;
+        unsigned int            memfactor;
+        xlator_list_t           *subvols;
+
+        gf_lock_t               svinitlock;
+        int                     allsubvols;
+        int                     upsubvols;
+        xlator_t                **initedxl;
+        int                     subvols_started;
+};
+
+
+/* We have one gid more than the glusterfs maximum since we pass the primary
+ * gid as the first element of the array.
+ */
+#define NFS_NGROUPS         (GF_REQUEST_MAXGROUPS + 1)
+
+/* Index of the primary gid */
+#define NFS_PRIMGID_IDX     0
+
+typedef struct nfs_user_info {
+        uid_t   uid;
+        gid_t   gids[NFS_NGROUPS];
+        int     ngrps;
+} nfs_user_t;
+
+extern int
+nfs_user_root_create (nfs_user_t *newnfu);
+
+extern int
+nfs_user_create (nfs_user_t *newnfu, uid_t uid, gid_t gid, gid_t *auxgids,
+                 int auxcount);
+
+extern void
+nfs_request_user_init (nfs_user_t *nfu, rpcsvc_request_t *req);
+
+#endif