diff options
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 91 |
1 files changed, 63 insertions, 28 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 0cdfb8c32ac6..3365e77f6f24 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; |