fs/cifs/dfs.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (c) 2022 Paulo Alcantara <palcantara@suse.de>
   4  */
   5
   6 #ifndef _CIFS_DFS_H
   7 #define _CIFS_DFS_H
   8
   9 #include "cifsglob.h"
  10 #include "fs_context.h"
  11 #include "cifs_unicode.h"
  12
  13 int dfs_parse_target_referral(const char *full_path, const struct dfs_info3_param *ref,
  14                               struct smb3_fs_context *ctx);
  15 int dfs_mount_share(struct cifs_mount_ctx *mnt_ctx, bool *isdfs);
  16
  17 static inline char *dfs_get_path(struct cifs_sb_info *cifs_sb, const char *path)
  18 {
  19         return dfs_cache_canonical_path(path, cifs_sb->local_nls, cifs_remap(cifs_sb));
  20 }
  21
  22 static inline int dfs_get_referral(struct cifs_mount_ctx *mnt_ctx, const char *path,
  23                                    struct dfs_info3_param *ref, struct dfs_cache_tgt_list *tl)
  24 {
  25         struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb;
  26
  27         return dfs_cache_find(mnt_ctx->xid, mnt_ctx->root_ses, cifs_sb->local_nls,
  28                               cifs_remap(cifs_sb), path, ref, tl);
  29 }
  30
  31 static inline char *dfs_get_automount_devname(struct dentry *dentry, void *page)
  32 {
  33         struct cifs_sb_info *cifs_sb = CIFS_SB(dentry->d_sb);
  34         struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
  35         struct TCP_Server_Info *server = tcon->ses->server;
  36
  37         if (unlikely(!server->origin_fullpath))
  38                 return ERR_PTR(-EREMOTE);
  39
  40         return __build_path_from_dentry_optional_prefix(dentry, page,
  41                                                         server->origin_fullpath,
  42                                                         strlen(server->origin_fullpath),
  43                                                         true);
  44 }
  45
  46 #endif /* _CIFS_DFS_H */