diff options
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 102a4a2b734d..673ecbfe6d9a 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -697,6 +697,19 @@ struct TCP_Server_Info { #endif #ifdef CONFIG_CIFS_DFS_UPCALL bool is_dfs_conn; /* if a dfs connection */ + struct mutex refpath_lock; /* protects leaf_fullpath */ + /* + * Canonical DFS full paths that were used to chase referrals in mount and reconnect. + * + * origin_fullpath: first or original referral path + * leaf_fullpath: last referral path (might be changed due to nested links in reconnect) + * + * current_fullpath: pointer to either origin_fullpath or leaf_fullpath + * NOTE: cannot be accessed outside cifs_reconnect() and smb2_reconnect() + * + * format: \\HOST\SHARE\[OPTIONAL PATH] + */ + char *origin_fullpath, *leaf_fullpath, *current_fullpath; #endif }; @@ -1097,7 +1110,6 @@ struct cifs_tcon { struct cached_fid crfid; /* Cached root fid */ /* BB add field for back pointer to sb struct(s)? */ #ifdef CONFIG_CIFS_DFS_UPCALL - char *dfs_path; /* canonical DFS path */ struct list_head ulist; /* cache update list */ #endif }; @@ -1948,4 +1960,14 @@ static inline bool is_tcon_dfs(struct cifs_tcon *tcon) tcon->share_flags & (SHI1005_FLAGS_DFS | SHI1005_FLAGS_DFS_ROOT); } +static inline bool cifs_is_referral_server(struct cifs_tcon *tcon, + const struct dfs_info3_param *ref) +{ + /* + * Check if all targets are capable of handling DFS referrals as per + * MS-DFSC 2.2.4 RESP_GET_DFS_REFERRAL. + */ + return is_tcon_dfs(tcon) || (ref && (ref->flags & DFSREF_REFERRAL_SERVER)); +} + #endif /* _CIFS_GLOB_H */ |