cifs: add a smb_version_operations/values structures and a smb_version enum

We need a way to dispatch different operations for different versions.
Behold the smb_version_operations/values structures. For now, those
structures just hold the version enum value and nothing uses them.
Eventually, we'll expand them to cover other operations/values as we
change the callers to dispatch from here.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>

1 files changed, 19 insertions, 0 deletions

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index a867d9923d7d..812e22ab0a49 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -150,6 +150,17 @@ struct cifs_cred {
  *****************************************************************
  */
 
+enum smb_version {
+        Smb_1 = 1,
+};
+
+struct smb_version_operations {
+};
+
+struct smb_version_values {
+        char            *version_string;
+};
+
 struct smb_vol {
         char *username;
         char *password;
@@ -205,6 +216,8 @@ struct smb_vol {
         bool sockopt_tcp_nodelay:1;
         unsigned short int port;
         unsigned long actimeo; /* attribute cache timeout (jiffies) */
+        struct smb_version_operations *ops;
+        struct smb_version_values *vals;
         char *prepath;
         struct sockaddr_storage srcaddr; /* allow binding to a local IP */
         struct nls_table *local_nls;
@@ -242,6 +255,8 @@ struct TCP_Server_Info {
         int srv_count; /* reference counter */
         /* 15 character server name + 0x20 16th byte indicating type = srv */
         char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
+        struct smb_version_operations   *ops;
+        struct smb_version_values       *vals;
         enum statusEnum tcpStatus; /* what we think the status is */
         char *hostname; /* hostname portion of UNC string */
         struct socket *ssocket;
@@ -1069,4 +1084,8 @@ void cifs_oplock_break(struct work_struct *work);
 extern const struct slow_work_ops cifs_oplock_break_ops;
 extern struct workqueue_struct *cifsiod_wq;
 
+/* Operations for different SMB versions */
+#define SMB1_VERSION_STRING     "1.0"
+extern struct smb_version_operations smb1_operations;
+extern struct smb_version_values smb1_values;
 #endif  /* _CIFS_GLOB_H */