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Diffstat (limited to 'fs/cifs/cifsglob.h')
-rw-r--r--fs/cifs/cifsglob.h176
1 files changed, 117 insertions, 59 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 48f7c197cd2d..38ab0fca49e1 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -33,6 +33,10 @@
#define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */
+#define SMB_PATH_MAX 260
+#define CIFS_PORT 445
+#define RFC1001_PORT 139
+
/*
* The sizes of various internal tables and strings
*/
@@ -73,6 +77,9 @@
#define SMB_ECHO_INTERVAL_MAX 600
#define SMB_ECHO_INTERVAL_DEFAULT 60
+/* maximum number of PDUs in one compound */
+#define MAX_COMPOUND 5
+
/*
* Default number of credits to keep available for SMB3.
* This value is chosen somewhat arbitrarily. The Windows client
@@ -130,10 +137,12 @@ struct cifs_secmech {
struct crypto_shash *md5; /* md5 hash function */
struct crypto_shash *hmacsha256; /* hmac-sha256 hash function */
struct crypto_shash *cmacaes; /* block-cipher based MAC function */
+ struct crypto_shash *sha512; /* sha512 hash function */
struct sdesc *sdeschmacmd5; /* ctxt to generate ntlmv2 hash, CR1 */
struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */
struct sdesc *sdeschmacsha256; /* ctxt to generate smb2 signature */
struct sdesc *sdesccmacaes; /* ctxt to generate smb3 signature */
+ struct sdesc *sdescsha512; /* ctxt to generate smb3.11 signing key */
struct crypto_aead *ccmaesencrypt; /* smb3 encryption aead */
struct crypto_aead *ccmaesdecrypt; /* smb3 decryption aead */
};
@@ -174,6 +183,7 @@ struct smb_rqst {
struct kvec *rq_iov; /* array of kvecs */
unsigned int rq_nvec; /* number of kvecs in array */
struct page **rq_pages; /* pointer to array of page ptrs */
+ unsigned int rq_offset; /* the offset to the 1st page */
unsigned int rq_npages; /* number pages in array */
unsigned int rq_pagesz; /* page size to use */
unsigned int rq_tailsz; /* length of last page */
@@ -185,9 +195,7 @@ enum smb_version {
Smb_21,
Smb_30,
Smb_302,
-#ifdef CONFIG_CIFS_SMB311
Smb_311,
-#endif /* SMB311 */
Smb_3any,
Smb_default,
Smb_version_err
@@ -242,7 +250,7 @@ struct smb_version_operations {
int (*map_error)(char *, bool);
/* find mid corresponding to the response message */
struct mid_q_entry * (*find_mid)(struct TCP_Server_Info *, char *);
- void (*dump_detail)(void *);
+ void (*dump_detail)(void *buf, struct TCP_Server_Info *ptcp_info);
void (*clear_stats)(struct cifs_tcon *);
void (*print_stats)(struct seq_file *m, struct cifs_tcon *);
void (*dump_share_caps)(struct seq_file *, struct cifs_tcon *);
@@ -309,6 +317,10 @@ struct smb_version_operations {
/* send echo request */
int (*echo)(struct TCP_Server_Info *);
/* create directory */
+ int (*posix_mkdir)(const unsigned int xid, struct inode *inode,
+ umode_t mode, struct cifs_tcon *tcon,
+ const char *full_path,
+ struct cifs_sb_info *cifs_sb);
int (*mkdir)(const unsigned int, struct cifs_tcon *, const char *,
struct cifs_sb_info *);
/* set info on created directory */
@@ -370,7 +382,7 @@ struct smb_version_operations {
int (*close_dir)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *);
/* calculate a size of SMB message */
- unsigned int (*calc_smb_size)(void *);
+ unsigned int (*calc_smb_size)(void *buf, struct TCP_Server_Info *ptcpi);
/* check for STATUS_PENDING and process it in a positive case */
bool (*is_status_pending)(char *, struct TCP_Server_Info *, int);
/* check for STATUS_NETWORK_SESSION_EXPIRED */
@@ -413,9 +425,9 @@ struct smb_version_operations {
void (*set_oplock_level)(struct cifsInodeInfo *, __u32, unsigned int,
bool *);
/* create lease context buffer for CREATE request */
- char * (*create_lease_buf)(u8 *, u8);
+ char * (*create_lease_buf)(u8 *lease_key, u8 oplock);
/* parse lease context buffer and return oplock/epoch info */
- __u8 (*parse_lease_buf)(void *, unsigned int *);
+ __u8 (*parse_lease_buf)(void *buf, unsigned int *epoch, char *lkey);
ssize_t (*copychunk_range)(const unsigned int,
struct cifsFileInfo *src_file,
struct cifsFileInfo *target_file,
@@ -446,16 +458,19 @@ struct smb_version_operations {
long (*fallocate)(struct file *, struct cifs_tcon *, int, loff_t,
loff_t);
/* init transform request - used for encryption for now */
- int (*init_transform_rq)(struct TCP_Server_Info *, struct smb_rqst *,
- struct smb_rqst *);
- /* free transform request */
- void (*free_transform_rq)(struct smb_rqst *);
+ int (*init_transform_rq)(struct TCP_Server_Info *, int num_rqst,
+ struct smb_rqst *, struct smb_rqst *);
int (*is_transform_hdr)(void *buf);
int (*receive_transform)(struct TCP_Server_Info *,
- struct mid_q_entry **);
+ struct mid_q_entry **, char **, int *);
enum securityEnum (*select_sectype)(struct TCP_Server_Info *,
enum securityEnum);
-
+ int (*next_header)(char *);
+ /* ioctl passthrough for query_info */
+ int (*ioctl_query_info)(const unsigned int xid,
+ struct cifs_tcon *tcon,
+ __le16 *path, int is_dir,
+ unsigned long p);
};
struct smb_version_values {
@@ -466,6 +481,7 @@ struct smb_version_values {
__u32 exclusive_lock_type;
__u32 shared_lock_type;
__u32 unlock_lock_type;
+ size_t header_preamble_size;
size_t header_size;
size_t max_header_size;
size_t read_rsp_size;
@@ -518,10 +534,12 @@ struct smb_vol {
bool sfu_remap:1; /* remap seven reserved chars ala SFU */
bool posix_paths:1; /* unset to not ask for posix pathnames. */
bool no_linux_ext:1;
+ bool linux_ext:1;
bool sfu_emul:1;
bool nullauth:1; /* attempt to authenticate with null user */
bool nocase:1; /* request case insensitive filenames */
bool nobrl:1; /* disable sending byte range locks to srv */
+ bool nohandlecache:1; /* disable caching dir handles if srvr probs */
bool mand_lock:1; /* send mandatory not posix byte range lock reqs */
bool seal:1; /* request transport encryption on share */
bool nodfs:1; /* Do not request DFS, even if available */
@@ -627,7 +645,7 @@ struct TCP_Server_Info {
bool oplocks:1; /* enable oplocks */
unsigned int maxReq; /* Clients should submit no more */
/* than maxReq distinct unanswered SMBs to the server when using */
- /* multiplexed reads or writes */
+ /* multiplexed reads or writes (for SMB1/CIFS only, not SMB2/SMB3) */
unsigned int maxBuf; /* maxBuf specifies the maximum */
/* message size the server can send or receive for non-raw SMBs */
/* maxBuf is returned by SMB NegotiateProtocol so maxBuf is only 0 */
@@ -642,6 +660,7 @@ struct TCP_Server_Info {
/* 16th byte of RFC1001 workstation name is always null */
char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
__u32 sequence_number; /* for signing, protected by srv_mutex */
+ __u32 reconnect_instance; /* incremented on each reconnect */
struct session_key session_key;
unsigned long lstrp; /* when we got last response from this server */
struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */
@@ -662,6 +681,8 @@ struct TCP_Server_Info {
struct delayed_work echo; /* echo ping 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 pdu_size;
unsigned int total_read; /* total amount of data read in this pass */
#ifdef CONFIG_CIFS_FSCACHE
struct fscache_cookie *fscache; /* client index cache cookie */
@@ -669,12 +690,14 @@ struct TCP_Server_Info {
#ifdef CONFIG_CIFS_STATS2
atomic_t in_send; /* requests trying to send */
atomic_t num_waiters; /* blocked waiting to get in sendrecv */
-#endif
+ atomic_t smb2slowcmd[NUMBER_OF_SMB2_COMMANDS]; /* count resps > 1 sec */
+#endif /* STATS2 */
unsigned int max_read;
unsigned int max_write;
-#ifdef CONFIG_CIFS_SMB311
- __u8 preauth_sha_hash[64]; /* save initital negprot hash */
-#endif /* 3.1.1 */
+ __le16 cipher_type;
+ /* save initital negprot hash */
+ __u8 preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE];
+ bool posix_ext_supported;
struct delayed_work reconnect; /* reconnect workqueue job */
struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
unsigned long echo_interval;
@@ -782,6 +805,7 @@ compare_mid(__u16 mid, const struct smb_hdr *smb)
* a single wsize request with a single call.
*/
#define CIFS_DEFAULT_IOSIZE (1024 * 1024)
+#define SMB3_DEFAULT_IOSIZE (4 * 1024 * 1024)
/*
* Windows only supports a max of 60kb reads and 65535 byte writes. Default to
@@ -827,6 +851,13 @@ static inline void cifs_set_net_ns(struct TCP_Server_Info *srv, struct net *net)
#endif
+struct cifs_server_iface {
+ size_t speed;
+ unsigned int rdma_capable : 1;
+ unsigned int rss_capable : 1;
+ struct sockaddr_storage sockaddr;
+};
+
/*
* Session structure. One of these for each uid session with a particular host
*/
@@ -861,9 +892,21 @@ struct cifs_ses {
__u8 smb3signingkey[SMB3_SIGN_KEY_SIZE];
__u8 smb3encryptionkey[SMB3_SIGN_KEY_SIZE];
__u8 smb3decryptionkey[SMB3_SIGN_KEY_SIZE];
-#ifdef CONFIG_CIFS_SMB311
- __u8 preauth_sha_hash[64];
-#endif /* 3.1.1 */
+ __u8 preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE];
+
+ /*
+ * Network interfaces available on the server this session is
+ * connected to.
+ *
+ * Other channels can be opened by connecting and binding this
+ * session to interfaces from this list.
+ *
+ * iface_lock should be taken when accessing any of these fields
+ */
+ spinlock_t iface_lock;
+ struct cifs_server_iface *iface_list;
+ size_t iface_count;
+ unsigned long iface_last_update; /* jiffies */
};
static inline bool
@@ -872,6 +915,15 @@ cap_unix(struct cifs_ses *ses)
return ses->server->vals->cap_unix & ses->capabilities;
}
+struct cached_fid {
+ bool is_valid:1; /* Do we have a useable root fid */
+ struct kref refcount;
+ struct cifs_fid *fid;
+ struct mutex fid_mutex;
+ struct cifs_tcon *tcon;
+ struct work_struct lease_break;
+};
+
/*
* there is one of these for each connection to a resource on a particular
* session
@@ -880,6 +932,8 @@ struct cifs_tcon {
struct list_head tcon_list;
int tc_count;
struct list_head rlist; /* reconnect list */
+ atomic_t num_local_opens; /* num of all opens including disconnected */
+ atomic_t num_remote_opens; /* num of all network opens on server */
struct list_head openFileList;
spinlock_t open_file_lock; /* protects list above */
struct cifs_ses *ses; /* pointer to session associated with */
@@ -889,7 +943,6 @@ struct cifs_tcon {
__u32 tid; /* The 4 byte tree id */
__u16 Flags; /* optional support bits */
enum statusEnum tidStatus;
-#ifdef CONFIG_CIFS_STATS
atomic_t num_smbs_sent;
union {
struct {
@@ -920,24 +973,9 @@ struct cifs_tcon {
atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
} smb2_stats;
} stats;
-#ifdef CONFIG_CIFS_STATS2
- unsigned long long time_writes;
- unsigned long long time_reads;
- unsigned long long time_opens;
- unsigned long long time_deletes;
- unsigned long long time_closes;
- unsigned long long time_mkdirs;
- unsigned long long time_rmdirs;
- unsigned long long time_renames;
- unsigned long long time_t2renames;
- unsigned long long time_ffirst;
- unsigned long long time_fnext;
- unsigned long long time_fclose;
-#endif /* CONFIG_CIFS_STATS2 */
__u64 bytes_read;
__u64 bytes_written;
spinlock_t stat_lock; /* protects the two fields above */
-#endif /* CONFIG_CIFS_STATS */
FILE_SYSTEM_DEVICE_INFO fsDevInfo;
FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */
FILE_SYSTEM_UNIX_INFO fsUnixInfo;
@@ -946,9 +984,11 @@ struct cifs_tcon {
bool print:1; /* set if connection to printer share */
bool retry:1;
bool nocase:1;
+ bool nohandlecache:1; /* if strange server resource prob can turn off */
bool seal:1; /* transport encryption for this mounted share */
bool unix_ext:1; /* if false disable Linux extensions to CIFS protocol
for this mount even if server would support */
+ bool posix_extensions; /* if true SMB3.11 posix extensions enabled */
bool local_lease:1; /* check leases (only) on local system not remote */
bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */
bool broken_sparse_sup; /* if server or share does not support sparse */
@@ -972,6 +1012,7 @@ struct cifs_tcon {
struct fscache_cookie *fscache; /* cookie for share */
#endif
struct list_head pending_opens; /* list of incomplete opens */
+ struct cached_fid crfid; /* Cached root fid */
/* BB add field for back pointer to sb struct(s)? */
};
@@ -994,6 +1035,7 @@ struct tcon_link {
};
extern struct tcon_link *cifs_sb_tlink(struct cifs_sb_info *cifs_sb);
+extern void smb3_free_compound_rqst(int num_rqst, struct smb_rqst *rqst);
static inline struct cifs_tcon *
tlink_tcon(struct tcon_link *tlink)
@@ -1001,6 +1043,12 @@ tlink_tcon(struct tcon_link *tlink)
return tlink->tl_tcon;
}
+static inline struct tcon_link *
+cifs_sb_master_tlink(struct cifs_sb_info *cifs_sb)
+{
+ return cifs_sb->master_tlink;
+}
+
extern void cifs_put_tlink(struct tcon_link *tlink);
static inline struct tcon_link *
@@ -1034,7 +1082,8 @@ struct cifsLockInfo {
__u64 offset;
__u64 length;
__u32 pid;
- __u32 type;
+ __u16 type;
+ __u16 flags;
};
/*
@@ -1064,6 +1113,7 @@ struct cifs_open_parms {
int create_options;
const char *path;
struct cifs_fid *fid;
+ umode_t mode;
bool reconnect:1;
};
@@ -1075,6 +1125,9 @@ struct cifs_fid {
__u8 create_guid[16];
struct cifs_pending_open *pending_open;
unsigned int epoch;
+#ifdef CONFIG_CIFS_DEBUG2
+ __u64 mid;
+#endif /* CIFS_DEBUG2 */
bool purge_cache;
};
@@ -1133,6 +1186,11 @@ struct cifs_aio_ctx {
unsigned int len;
unsigned int total_len;
bool should_dirty;
+ /*
+ * Indicates if this aio_ctx is for direct_io,
+ * If yes, iter is a copy of the user passed iov_iter
+ */
+ bool direct_io;
};
struct cifs_readdata;
@@ -1162,10 +1220,11 @@ struct cifs_readdata {
struct smbd_mr *mr;
#endif
unsigned int pagesz;
+ unsigned int page_offset;
unsigned int tailsz;
unsigned int credits;
unsigned int nr_pages;
- struct page *pages[];
+ struct page **pages;
};
struct cifs_writedata;
@@ -1187,10 +1246,11 @@ struct cifs_writedata {
struct smbd_mr *mr;
#endif
unsigned int pagesz;
+ unsigned int page_offset;
unsigned int tailsz;
unsigned int credits;
unsigned int nr_pages;
- struct page *pages[];
+ struct page **pages;
};
/*
@@ -1291,7 +1351,6 @@ convert_delimiter(char *path, char delim)
*pos = delim;
}
-#ifdef CONFIG_CIFS_STATS
#define cifs_stats_inc atomic_inc
static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
@@ -1311,13 +1370,6 @@ static inline void cifs_stats_bytes_read(struct cifs_tcon *tcon,
tcon->bytes_read += bytes;
spin_unlock(&tcon->stat_lock);
}
-#else
-
-#define cifs_stats_inc(field) do {} while (0)
-#define cifs_stats_bytes_written(tcon, bytes) do {} while (0)
-#define cifs_stats_bytes_read(tcon, bytes) do {} while (0)
-
-#endif
/*
@@ -1355,6 +1407,7 @@ typedef int (mid_handle_t)(struct TCP_Server_Info *server,
/* one of these for every pending CIFS request to the server */
struct mid_q_entry {
struct list_head qhead; /* mids waiting on reply from this server */
+ struct kref refcount;
struct TCP_Server_Info *server; /* server corresponding to this mid */
__u64 mid; /* multiplex id */
__u32 pid; /* process id */
@@ -1369,6 +1422,7 @@ struct mid_q_entry {
mid_handle_t *handle; /* call handle mid callback */
void *callback_data; /* general purpose pointer for callback */
void *resp_buf; /* pointer to received SMB header */
+ unsigned int resp_buf_size;
int mid_state; /* wish this were enum but can not pass to wait_event */
unsigned int mid_flags;
__le16 command; /* smb command code */
@@ -1466,6 +1520,7 @@ struct dfs_info3_param {
#define CIFS_FATTR_NEED_REVAL 0x4
#define CIFS_FATTR_INO_COLLISION 0x8
#define CIFS_FATTR_UNKNOWN_NLINK 0x10
+#define CIFS_FATTR_FAKE_ROOT_INO 0x20
struct cifs_fattr {
u32 cf_flags;
@@ -1480,9 +1535,9 @@ struct cifs_fattr {
dev_t cf_rdev;
unsigned int cf_nlink;
unsigned int cf_dtype;
- struct timespec cf_atime;
- struct timespec cf_mtime;
- struct timespec cf_ctime;
+ struct timespec64 cf_atime;
+ struct timespec64 cf_mtime;
+ struct timespec64 cf_ctime;
};
static inline void free_dfs_info_param(struct dfs_info3_param *param)
@@ -1517,6 +1572,7 @@ static inline void free_dfs_info_array(struct dfs_info3_param *param,
/* Flags */
#define MID_WAIT_CANCELLED 1 /* Cancelled while waiting for response */
+#define MID_DELETED 2 /* Mid has been dequeued/deleted */
/* Types of response buffer returned from SendReceive2 */
#define CIFS_NO_BUFFER 0 /* Response buffer not returned */
@@ -1678,21 +1734,23 @@ GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
#ifdef CONFIG_CIFS_STATS2
GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
GLOBAL_EXTERN atomic_t totSmBufAllocCount;
+extern unsigned int slow_rsp_threshold; /* number of secs before logging */
#endif
GLOBAL_EXTERN atomic_t smBufAllocCount;
GLOBAL_EXTERN atomic_t midCount;
/* Misc globals */
-GLOBAL_EXTERN bool enable_oplocks; /* enable or disable oplocks */
-GLOBAL_EXTERN bool lookupCacheEnabled;
-GLOBAL_EXTERN unsigned int global_secflags; /* if on, session setup sent
+extern bool enable_oplocks; /* enable or disable oplocks */
+extern bool lookupCacheEnabled;
+extern unsigned int global_secflags; /* if on, session setup sent
with more secure ntlmssp2 challenge/resp */
-GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */
-GLOBAL_EXTERN bool linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
-GLOBAL_EXTERN unsigned int CIFSMaxBufSize; /* max size not including hdr */
-GLOBAL_EXTERN unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */
-GLOBAL_EXTERN unsigned int cifs_min_small; /* min size of small buf pool */
-GLOBAL_EXTERN unsigned int cifs_max_pending; /* MAX requests at once to server*/
+extern unsigned int sign_CIFS_PDUs; /* enable smb packet signing */
+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_min_small; /* min size of small 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 */
#ifdef CONFIG_CIFS_ACL
GLOBAL_EXTERN struct rb_root uidtree;