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-rw-r--r--fs/cifs/cifsglob.h91
1 files changed, 63 insertions, 28 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 0cdfb8c32ac..3365e77f6f2 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -97,7 +97,7 @@ enum protocolEnum {
/* Netbios frames protocol not supported at this time */
};
-struct mac_key {
+struct session_key {
unsigned int len;
union {
char ntlm[CIFS_SESS_KEY_SIZE + 16];
@@ -139,6 +139,7 @@ struct TCP_Server_Info {
struct sockaddr_in sockAddr;
struct sockaddr_in6 sockAddr6;
} addr;
+ struct sockaddr_storage srcaddr; /* locally bind to this IP */
wait_queue_head_t response_q;
wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/
struct list_head pending_mid_q;
@@ -178,12 +179,10 @@ struct TCP_Server_Info {
int capabilities; /* allow selective disabling of caps by smb sess */
int timeAdj; /* Adjust for difference in server time zone in sec */
__u16 CurrentMid; /* multiplex id - rotating counter */
- char cryptKey[CIFS_CRYPTO_KEY_SIZE];
/* 16th byte of RFC1001 workstation name is always null */
char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
__u32 sequence_number; /* needed for CIFS PDU signature */
- struct mac_key mac_signing_key;
- char ntlmv2_hash[16];
+ struct session_key session_key;
unsigned long lstrp; /* when we got last response from this server */
u16 dialect; /* dialect index that server chose */
/* extended security flavors that server supports */
@@ -191,6 +190,7 @@ struct TCP_Server_Info {
bool sec_mskerberos; /* supports legacy MS Kerberos */
bool sec_kerberosu2u; /* supports U2U Kerberos */
bool sec_ntlmssp; /* supports NTLMSSP */
+ bool session_estab; /* mark when very first sess is established */
#ifdef CONFIG_CIFS_FSCACHE
struct fscache_cookie *fscache; /* client index cache cookie */
#endif
@@ -222,6 +222,11 @@ struct cifsSesInfo {
char userName[MAX_USERNAME_SIZE + 1];
char *domainName;
char *password;
+ char cryptKey[CIFS_CRYPTO_KEY_SIZE];
+ struct session_key auth_key;
+ char ntlmv2_hash[16];
+ unsigned int tilen; /* length of the target info blob */
+ unsigned char *tiblob; /* target info blob in challenge response */
bool need_reconnect:1; /* connection reset, uid now invalid */
};
/* no more than one of the following three session flags may be set */
@@ -308,6 +313,44 @@ struct cifsTconInfo {
};
/*
+ * This is a refcounted and timestamped container for a tcon pointer. The
+ * container holds a tcon reference. It is considered safe to free one of
+ * these when the tl_count goes to 0. The tl_time is the time of the last
+ * "get" on the container.
+ */
+struct tcon_link {
+ unsigned long tl_index;
+ unsigned long tl_flags;
+#define TCON_LINK_MASTER 0
+#define TCON_LINK_PENDING 1
+#define TCON_LINK_IN_TREE 2
+ unsigned long tl_time;
+ atomic_t tl_count;
+ struct cifsTconInfo *tl_tcon;
+};
+
+extern struct tcon_link *cifs_sb_tlink(struct cifs_sb_info *cifs_sb);
+
+static inline struct cifsTconInfo *
+tlink_tcon(struct tcon_link *tlink)
+{
+ return tlink->tl_tcon;
+}
+
+extern void cifs_put_tlink(struct tcon_link *tlink);
+
+static inline struct tcon_link *
+cifs_get_tlink(struct tcon_link *tlink)
+{
+ if (tlink && !IS_ERR(tlink))
+ atomic_inc(&tlink->tl_count);
+ return tlink;
+}
+
+/* This function is always expected to succeed */
+extern struct cifsTconInfo *cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb);
+
+/*
* This info hangs off the cifsFileInfo structure, pointed to by llist.
* This is used to track byte stream locks on the file
*/
@@ -345,12 +388,11 @@ struct cifsFileInfo {
__u16 netfid; /* file id from remote */
/* BB add lock scope info here if needed */ ;
/* lock scope id (0 if none) */
- struct file *pfile; /* needed for writepage */
- struct inode *pInode; /* needed for oplock break */
- struct vfsmount *mnt;
+ struct dentry *dentry;
+ unsigned int f_flags;
+ struct tcon_link *tlink;
struct mutex lock_mutex;
struct list_head llist; /* list of byte range locks we have. */
- bool closePend:1; /* file is marked to close */
bool invalidHandle:1; /* file closed via session abend */
bool oplock_break_cancelled:1;
atomic_t count; /* reference count */
@@ -365,14 +407,7 @@ static inline void cifsFileInfo_get(struct cifsFileInfo *cifs_file)
atomic_inc(&cifs_file->count);
}
-/* Release a reference on the file private data */
-static inline void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
-{
- if (atomic_dec_and_test(&cifs_file->count)) {
- iput(cifs_file->pInode);
- kfree(cifs_file);
- }
-}
+void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
/*
* One of these for each file inode
@@ -474,16 +509,16 @@ struct oplock_q_entry {
/* for pending dnotify requests */
struct dir_notify_req {
- struct list_head lhead;
- __le16 Pid;
- __le16 PidHigh;
- __u16 Mid;
- __u16 Tid;
- __u16 Uid;
- __u16 netfid;
- __u32 filter; /* CompletionFilter (for multishot) */
- int multishot;
- struct file *pfile;
+ struct list_head lhead;
+ __le16 Pid;
+ __le16 PidHigh;
+ __u16 Mid;
+ __u16 Tid;
+ __u16 Uid;
+ __u16 netfid;
+ __u32 filter; /* CompletionFilter (for multishot) */
+ int multishot;
+ struct file *pfile;
};
struct dfs_info3_param {
@@ -667,7 +702,7 @@ GLOBAL_EXTERN struct list_head cifs_tcp_ses_list;
* the reference counters for the server, smb session, and tcon. Finally,
* changes to the tcon->tidStatus should be done while holding this lock.
*/
-GLOBAL_EXTERN rwlock_t cifs_tcp_ses_lock;
+GLOBAL_EXTERN spinlock_t cifs_tcp_ses_lock;
/*
* This lock protects the cifs_file->llist and cifs_file->flist
@@ -676,7 +711,7 @@ GLOBAL_EXTERN rwlock_t cifs_tcp_ses_lock;
* If cifs_tcp_ses_lock and the lock below are both needed to be held, then
* the cifs_tcp_ses_lock must be grabbed first and released last.
*/
-GLOBAL_EXTERN rwlock_t GlobalSMBSeslock;
+GLOBAL_EXTERN spinlock_t cifs_file_list_lock;
/* Outstanding dir notify requests */
GLOBAL_EXTERN struct list_head GlobalDnotifyReqList;