+/* SPDX-License-Identifier: LGPL-2.1 */
/*
* fs/cifs/cifsglob.h
*
* 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
#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
struct inode *inode,
struct dentry *dentry,
struct cifs_tcon *tcon,
- char *full_path,
+ const char *full_path,
umode_t mode,
dev_t device_number);
/* version specific fiemap implementation */
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;
/* 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];
/* 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 */
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 */
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 {
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 */
bool is_valid:1; /* Do we have a useable root fid */
bool file_all_info_is_valid:1;
bool has_lease:1;
+ unsigned long time; /* jiffies of when lease was taken */
struct kref refcount;
struct cifs_fid *fid;
struct mutex fid_mutex;
struct cifs_tcon *tcon;
+ struct dentry *dentry;
struct work_struct lease_break;
struct smb2_file_all_info file_all_info;
};
bool use_resilient:1; /* use resilient instead of durable handles */
bool use_persistent:1; /* use persistent instead of durable handles */
bool no_lease:1; /* Do not request leases on files or directories */
+ bool use_witness:1; /* use witness protocol */
__le32 capabilities;
__u32 share_flags;
__u32 maximal_access;
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
-#ifdef CONFIG_CIFS_SWN_UPCALL
- bool use_witness:1; /* use witness protocol */
-#endif
};
/*
__u32 oplock;
};
+struct cifs_deferred_close {
+ struct list_head dlist;
+ struct tcon_link *tlink;
+ __u16 netfid;
+ __u64 persistent_fid;
+ __u64 volatile_fid;
+};
+
/*
* This info hangs off the cifsFileInfo structure, pointed to by llist.
* This is used to track byte stream locks on the file
struct cifs_search_info srch_inf;
struct work_struct oplock_break; /* work for oplock breaks */
struct work_struct put; /* work for the final part of _put */
+ struct delayed_work deferred;
+ bool deferred_close_scheduled; /* Flag to indicate close is scheduled */
};
struct cifs_io_parms {
struct page **pages;
};
-struct cifs_writedata;
-
/* asynchronous write support */
struct cifs_writedata {
struct kref refcount;
#define CIFS_INO_DELETE_PENDING (3) /* delete pending on server */
#define CIFS_INO_INVALID_MAPPING (4) /* pagecache is invalid */
#define CIFS_INO_LOCK (5) /* lock bit for synchronization */
+#define CIFS_INO_MODIFIED_ATTR (6) /* Indicate change in mtime/ctime */
unsigned long flags;
spinlock_t writers_lock;
unsigned int writers; /* Number of writers on this inode */
struct fscache_cookie *fscache;
#endif
struct inode vfs_inode;
+ struct list_head deferred_closes; /* list of deferred closes */
+ spinlock_t deferred_lock; /* protection on deferred list */
+ bool lease_granted; /* Flag to indicate whether lease or oplock is granted. */
};
static inline struct cifsInodeInfo *
* 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
*
* Semaphores
* ----------
- * sesSem operations on smb session
- * tconSem operations on tree connection
- * fh_sem file handle reconnection operations
+ * cifsInodeInfo->lock_sem protects:
+ * the list of locks held by the inode
*
****************************************************************************/
*/
GLOBAL_EXTERN spinlock_t cifs_tcp_ses_lock;
-#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
-/* Outstanding dir notify requests */
-GLOBAL_EXTERN struct list_head GlobalDnotifyReqList;
-/* DirNotify response queue */
-GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q;
-#endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
-
/*
* Global transaction id (XID) information
*/
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 */
extern unsigned int cifs_max_pending; /* MAX requests at once to server*/
extern bool disable_legacy_dialects; /* forbid vers=1.0 and vers=2.0 mounts */
-GLOBAL_EXTERN struct rb_root uidtree;
-GLOBAL_EXTERN struct rb_root gidtree;
-GLOBAL_EXTERN spinlock_t siduidlock;
-GLOBAL_EXTERN spinlock_t sidgidlock;
-GLOBAL_EXTERN struct rb_root siduidtree;
-GLOBAL_EXTERN struct rb_root sidgidtree;
-GLOBAL_EXTERN spinlock_t uidsidlock;
-GLOBAL_EXTERN spinlock_t gidsidlock;
-
void cifs_oplock_break(struct work_struct *work);
void cifs_queue_oplock_break(struct cifsFileInfo *cfile);
+void smb2_deferred_work_close(struct work_struct *work);
extern const struct slow_work_ops cifs_oplock_break_ops;
extern struct workqueue_struct *cifsiod_wq;
extern struct workqueue_struct *decrypt_wq;
extern struct workqueue_struct *fileinfo_put_wq;
extern struct workqueue_struct *cifsoplockd_wq;
+extern struct workqueue_struct *deferredclose_wq;
extern __u32 cifs_lock_secret;
extern mempool_t *cifs_mid_poolp;
projects / linux-2.6-microblaze.git / blobdiff