*****************************************************************
*/
+enum smb_version {
+ Smb_1 = 1,
+};
+
+struct mid_q_entry;
+struct TCP_Server_Info;
+struct cifsFileInfo;
+struct cifs_ses;
+
+struct smb_version_operations {
+ int (*send_cancel)(struct TCP_Server_Info *, void *,
+ struct mid_q_entry *);
+ bool (*compare_fids)(struct cifsFileInfo *, struct cifsFileInfo *);
+ /* setup request: allocate mid, sign message */
+ int (*setup_request)(struct cifs_ses *, struct kvec *, unsigned int,
+ struct mid_q_entry **);
+ /* check response: verify signature, map error */
+ int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *,
+ bool);
+ /* data offset from read response message */
+ unsigned int (*read_data_offset)(char *);
+ /* data length from read response message */
+ unsigned int (*read_data_length)(char *);
+ /* map smb to linux error */
+ 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 *);
+ /* verify the message */
+ int (*check_message)(char *, unsigned int);
+ bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
+};
+
+struct smb_version_values {
+ char *version_string;
+ __u32 large_lock_type;
+ __u32 exclusive_lock_type;
+ __u32 shared_lock_type;
+ __u32 unlock_lock_type;
+ size_t header_size;
+ size_t max_header_size;
+ size_t read_rsp_size;
+};
+
+#define HEADER_SIZE(server) (server->vals->header_size)
+#define MAX_HEADER_SIZE(server) (server->vals->max_header_size)
+
struct smb_vol {
char *username;
char *password;
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;
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;
return num > 0;
}
-static inline size_t
-header_size(void)
-{
- return sizeof(struct smb_hdr);
-}
-
-static inline size_t
-max_header_size(void)
-{
- return MAX_CIFS_HDR_SIZE;
-}
-
/*
* Macros to allow the TCP_Server_Info->net field and related code to drop out
* when CONFIG_NET_NS isn't set.
__u64 offset;
__u64 length;
__u32 pid;
- __u8 type;
- __u16 netfid;
+ __u32 type;
};
/*
struct cifsFileInfo {
struct list_head tlist; /* pointer to next fid owned by tcon */
struct list_head flist; /* next fid (file instance) for this inode */
+ struct list_head llist; /*
+ * brlocks held by this fid, protected by
+ * lock_mutex from cifsInodeInfo structure
+ */
unsigned int uid; /* allows finding which FileInfo structure */
__u32 pid; /* process id who opened file */
__u16 netfid; /* file id from remote */
* Take a reference on the file private data. Must be called with
* cifs_file_list_lock held.
*/
-static inline void cifsFileInfo_get(struct cifsFileInfo *cifs_file)
+static inline
+struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file)
{
++cifs_file->count;
+ return cifs_file;
}
void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
*/
struct cifsInodeInfo {
- struct list_head llist; /* brlocks for this inode */
bool can_cache_brlcks;
- struct mutex lock_mutex; /* protect two fields above */
+ struct mutex lock_mutex; /*
+ * protect the field above and llist
+ * from every cifsFileInfo structure
+ * from openFileList
+ */
/* BB add in lists for dirty pages i.e. write caching info for oplock */
struct list_head openFileList;
__u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
bool delete_pending; /* DELETE_ON_CLOSE is set */
bool invalid_mapping; /* pagecache is invalid */
unsigned long time; /* jiffies of last update of inode */
- u64 server_eof; /* current file size on server */
+ u64 server_eof; /* current file size on server -- protected by i_lock */
u64 uniqueid; /* server inode number */
u64 createtime; /* creation time on server */
#ifdef CONFIG_CIFS_FSCACHE
#endif
-struct mid_q_entry;
/*
* This is the prototype for the mid receive function. This function is for
GLOBAL_EXTERN atomic_t midCount;
/* Misc globals */
-GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions
- to be established on existing mount if we
- have the uid/password or Kerberos credential
- or equivalent for current user */
-/* enable or disable oplocks */
-GLOBAL_EXTERN bool enable_oplocks;
+GLOBAL_EXTERN bool enable_oplocks; /* enable or disable oplocks */
GLOBAL_EXTERN unsigned int lookupCacheEnabled;
GLOBAL_EXTERN unsigned int global_secflags; /* if on, session setup sent
with more secure ntlmssp2 challenge/resp */
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 */
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff