Merge v5.14-rc3 into usb-next

[linux-2.6-microblaze.git] / fs / cifs / cifsglob.h

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 8488d70..c0bfc2f 100644 (file)
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1 */
 /*
  *   fs/cifs/cifsglob.h
  *
@@ -5,16 +6,6 @@
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *              Jeremy Allison (jra@samba.org)
  *
- *   This library is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU Lesser General Public License as published
- *   by the Free Software Foundation; either version 2.1 of the License, or
- *   (at your option) any later version.
- *
- *   This library is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
- *   the GNU Lesser General Public License for more details.
- *
  */
 #ifndef _CIFS_GLOB_H
 #define _CIFS_GLOB_H
@@ -84,6 +75,9 @@
 #define SMB_ECHO_INTERVAL_MAX 600
 #define SMB_ECHO_INTERVAL_DEFAULT 60
 
+/* dns resolution interval in seconds */
+#define SMB_DNS_RESOLVE_INTERVAL_DEFAULT 600
+
 /* maximum number of PDUs in one compound */
 #define MAX_COMPOUND 5
 
@@ -586,6 +580,7 @@ struct TCP_Server_Info {
        char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
        struct smb_version_operations   *ops;
        struct smb_version_values       *vals;
+       /* updates to tcpStatus protected by GlobalMid_Lock */
        enum statusEnum tcpStatus; /* what we think the status is */
        char *hostname; /* hostname portion of UNC string */
        struct socket *ssocket;
@@ -630,7 +625,7 @@ struct TCP_Server_Info {
        /* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */
        unsigned int capabilities; /* selective disabling of caps by smb sess */
        int timeAdj;  /* Adjust for difference in server time zone in sec */
-       __u64 CurrentMid;         /* multiplex id - rotating counter */
+       __u64 CurrentMid;         /* multiplex id - rotating counter, protected by GlobalMid_Lock */
        char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */
        /* 16th byte of RFC1001 workstation name is always null */
        char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
@@ -654,6 +649,7 @@ struct TCP_Server_Info {
        /* point to the SMBD connection if RDMA is used instead of socket */
        struct smbd_connection *smbd_conn;
        struct delayed_work     echo; /* echo ping workqueue job */
+       struct delayed_work     resolve; /* dns resolution workqueue job */
        char    *smallbuf;      /* pointer to current "small" buffer */
        char    *bigbuf;        /* pointer to current "big" buffer */
        /* Total size of this PDU. Only valid from cifs_demultiplex_thread */
@@ -675,9 +671,11 @@ struct TCP_Server_Info {
        unsigned int    max_write;
        unsigned int    min_offload;
        __le16  compress_algorithm;
+       __u16   signing_algorithm;
        __le16  cipher_type;
         /* save initital negprot hash */
        __u8    preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE];
+       bool    signing_negotiated; /* true if valid signing context rcvd from server */
        bool    posix_ext_supported;
        struct delayed_work reconnect; /* reconnect workqueue job */
        struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
@@ -695,6 +693,9 @@ struct TCP_Server_Info {
        bool use_swn_dstaddr;
        struct sockaddr_storage swn_dstaddr;
 #endif
+#ifdef CONFIG_CIFS_DFS_UPCALL
+       bool is_dfs_conn; /* if a dfs connection */
+#endif
 };
 
 struct cifs_credits {
@@ -896,7 +897,7 @@ struct cifs_ses {
        struct mutex session_mutex;
        struct TCP_Server_Info *server; /* pointer to server info */
        int ses_count;          /* reference counter */
-       enum statusEnum status;
+       enum statusEnum status;  /* updates protected by GlobalMid_Lock */
        unsigned overrideSecFlg;  /* if non-zero override global sec flags */
        char *serverOS;         /* name of operating system underlying server */
        char *serverNOS;        /* name of network operating system of server */
@@ -1093,8 +1094,7 @@ 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;
-       int remap:2;
+       char *dfs_path; /* canonical DFS path */
        struct list_head ulist; /* cache update list */
 #endif
 };
@@ -1795,6 +1795,8 @@ require use of the stronger protocol */
  *     list operations on pending_mid_q and oplockQ
  *      updates to XID counters, multiplex id  and SMB sequence numbers
  *      list operations on global DnotifyReqList
+ *      updates to ses->status and TCP_Server_Info->tcpStatus
+ *      updates to server->CurrentMid
  *  tcp_ses_lock protects:
  *     list operations on tcp and SMB session lists
  *  tcon->open_file_lock protects the list of open files hanging off the tcon
@@ -1876,6 +1878,7 @@ extern unsigned int global_secflags;      /* if on, session setup sent
 extern unsigned int sign_CIFS_PDUs;  /* enable smb packet signing */
 extern bool enable_gcm_256; /* allow optional negotiate of strongest signing (aes-gcm-256) */
 extern bool require_gcm_256; /* require use of strongest signing (aes-gcm-256) */
+extern bool enable_negotiate_signing; /* request use of faster (GMAC) signing if available */
 extern bool linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
 extern unsigned int CIFSMaxBufSize;  /* max size not including hdr */
 extern unsigned int cifs_min_rcv;    /* min size of big ntwrk buf pool */