diff options
Diffstat (limited to 'xlators/features/gfid-access/src/gfid-access.h')
| -rw-r--r-- | xlators/features/gfid-access/src/gfid-access.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/xlators/features/gfid-access/src/gfid-access.h b/xlators/features/gfid-access/src/gfid-access.h new file mode 100644 index 00000000000..e13c9b7240b --- /dev/null +++ b/xlators/features/gfid-access/src/gfid-access.h @@ -0,0 +1,128 @@ +/* + Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + 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 __GFID_ACCESS_H__ +#define __GFID_ACCESS_H__ + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "glusterfs.h" +#include "logging.h" +#include "dict.h" +#include "xlator.h" +#include "defaults.h" +#include "gfid-access-mem-types.h" + +#define UUID_CANONICAL_FORM_LEN 36 + +#define GF_FUSE_AUX_GFID_NEWFILE "glusterfs.gfid.newfile" +#define GF_FUSE_AUX_GFID_HEAL "glusterfs.gfid.heal" + +#define GF_GFID_KEY "GLUSTERFS_GFID" +#define GF_GFID_DIR ".gfid" +#define GF_AUX_GFID 0xd + +#define GFID_ACCESS_GET_VALID_DIR_INODE(x,l,unref,lbl) do { \ + int ret = 0; \ + uint64_t value = 0; \ + inode_t *tmp_inode = NULL; \ + \ + /* if its an entry operation, on the virtual */ \ + /* directory inode as parent, we need to handle */ \ + /* it properly */ \ + if (l->parent) { \ + ret = inode_ctx_get (l->parent, x, &value); \ + if (ret) \ + goto lbl; \ + tmp_inode = (inode_t *)value; \ + unref = inode_ref (tmp_inode); \ + l->parent = tmp_inode; \ + /* if parent is virtual, no need to handle */ \ + /* loc->inode */ \ + break; \ + } \ + \ + /* if its an inode operation, on the virtual */ \ + /* directory inode itself, we need to handle */ \ + /* it properly */ \ + if (l->inode) { \ + ret = inode_ctx_get (l->inode, x, &value); \ + if (ret) \ + goto lbl; \ + tmp_inode = (inode_t *)value; \ + unref = inode_ref (tmp_inode); \ + l->inode = tmp_inode; \ + } \ + \ + } while (0) + +#define GFID_ACCESS_ENTRY_OP_CHECK(loc,err,lbl) do { \ + /* need to check if the lookup is on virtual dir */ \ + if ((loc->name && !strcmp (GF_GFID_DIR, loc->name)) && \ + ((loc->parent && \ + __is_root_gfid (loc->parent->gfid)) || \ + __is_root_gfid (loc->pargfid))) { \ + err = EEXIST; \ + goto lbl; \ + } \ + \ + /* now, check if the lookup() is on an existing */ \ + /* entry, but on gfid-path */ \ + if ((loc->parent && \ + __is_gfid_access_dir (loc->parent->gfid)) || \ + __is_gfid_access_dir (loc->pargfid)) { \ + err = EPERM; \ + goto lbl; \ + } \ + } while (0) + + +typedef struct { + unsigned int uid; + unsigned int gid; + char gfid[UUID_CANONICAL_FORM_LEN + 1]; + unsigned int st_mode; + char *bname; + + union { + struct _symlink_in { + char *linkpath; + } __attribute__ ((__packed__)) symlink; + + struct _mknod_in { + unsigned int mode; + unsigned int rdev; + unsigned int umask; + } __attribute__ ((__packed__)) mknod; + + struct _mkdir_in { + unsigned int mode; + unsigned int umask; + } __attribute__ ((__packed__)) mkdir; + } __attribute__ ((__packed__)) args; +} __attribute__((__packed__)) ga_newfile_args_t; + +typedef struct { + char gfid[UUID_CANONICAL_FORM_LEN + 1]; + char *bname; /* a null terminated basename */ +} __attribute__((__packed__)) ga_heal_args_t; + +struct ga_private { + /* root inode's stbuf */ + struct iatt root_stbuf; + struct iatt gfiddir_stbuf; + struct mem_pool *newfile_args_pool; + struct mem_pool *heal_args_pool; +}; +typedef struct ga_private ga_private_t; + +#endif /* __GFID_ACCESS_H__ */ |