Add SMB3.11 mount option synonym for new dialect

Most people think of SMB 3.1.1 as SMB version 3.11 so add synonym
for "vers=3.1.1" of "vers=3.11" on mount.

Also make sure that unlike SMB3.0 and 3.02 we don't send
validate negotiate on mount (it is handled by negotiate contexts) -
add list of SMB3.11 specific functions (distinct from 3.0 dialect).

Signed-off-by: Steve French <steve.french@primarydata.com>w

3 files changed, 90 insertions, 2 deletions

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 71bf86e6de9a..a0212ec6f701 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1622,6 +1622,7 @@ extern struct smb_version_values smb30_values;
 /*extern struct smb_version_operations smb302_operations;*/ /* not needed yet */
 extern struct smb_version_values smb302_values;
 #define SMB311_VERSION_STRING   "3.1.1"
-/*extern struct smb_version_operations smb311_operations;*/ /* not needed yet */
+#define ALT_SMB311_VERSION_STRING "3.11"
+extern struct smb_version_operations smb311_operations;
 extern struct smb_version_values smb311_values;
 #endif  /* _CIFS_GLOB_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 9300b98d8584..247f4dd228cc 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -282,6 +282,7 @@ static const match_table_t cifs_smb_version_tokens = {
         { Smb_302, SMB302_VERSION_STRING },
 #ifdef CONFIG_CIFS_SMB311
         { Smb_311, SMB311_VERSION_STRING },
+        { Smb_311, ALT_SMB311_VERSION_STRING },
 #endif /* SMB311 */
         { Smb_version_err, NULL }
 };
@@ -1139,7 +1140,7 @@ cifs_parse_smb_version(char *value, struct smb_vol *vol)
                 break;
 #ifdef CONFIG_CIFS_SMB311
         case Smb_311:
-                vol->ops = &smb30_operations; /* currently identical with 3.0 */
+                vol->ops = &smb311_operations;
                 vol->vals = &smb311_values;
                 break;
 #endif /* SMB311 */
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index a7d520cc2cfd..c7d228c4006a 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1635,6 +1635,92 @@ struct smb_version_operations smb30_operations = {
         .fallocate = smb3_fallocate,
 };
 
+#ifdef CONFIG_CIFS_SMB311
+struct smb_version_operations smb311_operations = {
+        .compare_fids = smb2_compare_fids,
+        .setup_request = smb2_setup_request,
+        .setup_async_request = smb2_setup_async_request,
+        .check_receive = smb2_check_receive,
+        .add_credits = smb2_add_credits,
+        .set_credits = smb2_set_credits,
+        .get_credits_field = smb2_get_credits_field,
+        .get_credits = smb2_get_credits,
+        .wait_mtu_credits = smb2_wait_mtu_credits,
+        .get_next_mid = smb2_get_next_mid,
+        .read_data_offset = smb2_read_data_offset,
+        .read_data_length = smb2_read_data_length,
+        .map_error = map_smb2_to_linux_error,
+        .find_mid = smb2_find_mid,
+        .check_message = smb2_check_message,
+        .dump_detail = smb2_dump_detail,
+        .clear_stats = smb2_clear_stats,
+        .print_stats = smb2_print_stats,
+        .dump_share_caps = smb2_dump_share_caps,
+        .is_oplock_break = smb2_is_valid_oplock_break,
+        .downgrade_oplock = smb2_downgrade_oplock,
+        .need_neg = smb2_need_neg,
+        .negotiate = smb2_negotiate,
+        .negotiate_wsize = smb2_negotiate_wsize,
+        .negotiate_rsize = smb2_negotiate_rsize,
+        .sess_setup = SMB2_sess_setup,
+        .logoff = SMB2_logoff,
+        .tree_connect = SMB2_tcon,
+        .tree_disconnect = SMB2_tdis,
+        .qfs_tcon = smb3_qfs_tcon,
+        .is_path_accessible = smb2_is_path_accessible,
+        .can_echo = smb2_can_echo,
+        .echo = SMB2_echo,
+        .query_path_info = smb2_query_path_info,
+        .get_srv_inum = smb2_get_srv_inum,
+        .query_file_info = smb2_query_file_info,
+        .set_path_size = smb2_set_path_size,
+        .set_file_size = smb2_set_file_size,
+        .set_file_info = smb2_set_file_info,
+        .set_compression = smb2_set_compression,
+        .mkdir = smb2_mkdir,
+        .mkdir_setinfo = smb2_mkdir_setinfo,
+        .rmdir = smb2_rmdir,
+        .unlink = smb2_unlink,
+        .rename = smb2_rename_path,
+        .create_hardlink = smb2_create_hardlink,
+        .query_symlink = smb2_query_symlink,
+        .query_mf_symlink = smb3_query_mf_symlink,
+        .create_mf_symlink = smb3_create_mf_symlink,
+        .open = smb2_open_file,
+        .set_fid = smb2_set_fid,
+        .close = smb2_close_file,
+        .flush = smb2_flush_file,
+        .async_readv = smb2_async_readv,
+        .async_writev = smb2_async_writev,
+        .sync_read = smb2_sync_read,
+        .sync_write = smb2_sync_write,
+        .query_dir_first = smb2_query_dir_first,
+        .query_dir_next = smb2_query_dir_next,
+        .close_dir = smb2_close_dir,
+        .calc_smb_size = smb2_calc_size,
+        .is_status_pending = smb2_is_status_pending,
+        .oplock_response = smb2_oplock_response,
+        .queryfs = smb2_queryfs,
+        .mand_lock = smb2_mand_lock,
+        .mand_unlock_range = smb2_unlock_range,
+        .push_mand_locks = smb2_push_mandatory_locks,
+        .get_lease_key = smb2_get_lease_key,
+        .set_lease_key = smb2_set_lease_key,
+        .new_lease_key = smb2_new_lease_key,
+        .generate_signingkey = generate_smb3signingkey,
+        .calc_signature = smb3_calc_signature,
+        .is_read_op = smb21_is_read_op,
+        .set_oplock_level = smb3_set_oplock_level,
+        .create_lease_buf = smb3_create_lease_buf,
+        .parse_lease_buf = smb3_parse_lease_buf,
+        .clone_range = smb2_clone_range,
+/*      .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */
+        .wp_retry_size = smb2_wp_retry_size,
+        .dir_needs_close = smb2_dir_needs_close,
+        .fallocate = smb3_fallocate,
+};
+#endif /* CIFS_SMB311 */
+
 struct smb_version_values smb20_values = {
         .version_string = SMB20_VERSION_STRING,
         .protocol_id = SMB20_PROT_ID,