smb/client/cifsglob.h

662 struct TCP_Server_Info {  struct
663 	struct list_head tcp_ses_list;
664 	struct list_head smb_ses_list;
665 	spinlock_t srv_lock;  /* protect anything here that is not protected */
666 	__u64 conn_id; /* connection identifier (useful for debugging) */
667 	int srv_count; /* reference counter */
669 	char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
670 	struct smb_version_operations	*ops;
671 	struct smb_version_values	*vals;
673 	enum statusEnum tcpStatus; /* what we think the status is */
674 	char *hostname; /* hostname portion of UNC string */
675 	struct socket *ssocket;
676 	struct sockaddr_storage dstaddr;
677 	struct sockaddr_storage srcaddr; /* locally bind to this IP */
679 	struct net *net;
681 	wait_queue_head_t response_q;
682 	wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/
683 	spinlock_t mid_lock;  /* protect mid queue and it's entries */
684 	struct list_head pending_mid_q;
685 	bool noblocksnd;		/* use blocking sendmsg */
686 	bool noautotune;		/* do not autotune send buf sizes */
687 	bool nosharesock;
688 	bool tcp_nodelay;
689 	bool terminate;
690 	unsigned int credits;  /* send no more requests at once */
691 	unsigned int max_credits; /* can override large 32000 default at mnt */
692 	unsigned int in_flight;  /* number of requests on the wire to server */
693 	unsigned int max_in_flight; /* max number of requests that were on wire */
694 	spinlock_t req_lock;  /* protect the two values above */
695 	struct mutex _srv_mutex;
696 	unsigned int nofs_flag;
697 	struct task_struct *tsk;
698 	char server_GUID[16];
699 	__u16 sec_mode;
700 	bool sign; /* is signing enabled on this connection? */
701 	bool ignore_signature:1; /* skip validation of signatures in SMB2/3 rsp */
702 	bool session_estab; /* mark when very first sess is established */
703 	int echo_credits;  /* echo reserved slots */
704 	int oplock_credits;  /* oplock break reserved slots */
705 	bool echoes:1; /* enable echoes */
706 	__u8 client_guid[SMB2_CLIENT_GUID_SIZE]; /* Client GUID */
707 	u16 dialect; /* dialect index that server chose */
708 	bool oplocks:1; /* enable oplocks */
709 	unsigned int maxReq;	/* Clients should submit no more */
712 	unsigned int maxBuf;	/* maxBuf specifies the maximum */
716 	unsigned int max_rw;	/* maxRw specifies the maximum */
719 	unsigned int capabilities; /* selective disabling of caps by smb sess */
720 	int timeAdj;  /* Adjust for difference in server time zone in sec */
721 	__u64 CurrentMid;         /* multiplex id - rotating counter, protected by GlobalMid_Lock */
722 	char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */
724 	char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL];
725 	__u32 sequence_number; /* for signing, protected by srv_mutex */
726 	__u32 reconnect_instance; /* incremented on each reconnect */
727 	struct session_key session_key;
728 	unsigned long lstrp; /* when we got last response from this server */
729 	struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */
732 	char	negflavor;	/* NEGOTIATE response flavor */
734 	bool	sec_ntlmssp;		/* supports NTLMSSP */
735 	bool	sec_kerberosu2u;	/* supports U2U Kerberos */
736 	bool	sec_kerberos;		/* supports plain Kerberos */
737 	bool	sec_mskerberos;		/* supports legacy MS Kerberos */
738 	bool	large_buf;		/* is current buffer large? */
740 	bool	rdma;
742 	struct smbd_connection *smbd_conn;
743 	struct delayed_work	echo; /* echo ping workqueue job */
744 	char	*smallbuf;	/* pointer to current "small" buffer */
745 	char	*bigbuf;	/* pointer to current "big" buffer */
747 	unsigned int pdu_size;
748 	unsigned int total_read; /* total amount of data read in this pass */
749 	atomic_t in_send; /* requests trying to send */
750 	atomic_t num_waiters;   /* blocked waiting to get in sendrecv */
752 	atomic_t num_cmds[NUMBER_OF_SMB2_COMMANDS]; /* total requests by cmd */
753 	atomic_t smb2slowcmd[NUMBER_OF_SMB2_COMMANDS]; /* count resps > 1 sec */
754 	__u64 time_per_cmd[NUMBER_OF_SMB2_COMMANDS]; /* total time per cmd */
755 	__u32 slowest_cmd[NUMBER_OF_SMB2_COMMANDS];
756 	__u32 fastest_cmd[NUMBER_OF_SMB2_COMMANDS];
758 	unsigned int	max_read;
759 	unsigned int	max_write;
760 	unsigned int	min_offload;
761 	unsigned int	retrans;
762 	__le16	compress_algorithm;
763 	__u16	signing_algorithm;
787 	struct TCP_Server_Info *primary_server;  argument
788 	__u16 channel_sequence_num;  /* incremented on primary channel on each chan reconnect */
812 static inline bool is_smb1(struct TCP_Server_Info *server)  in is_smb1()  argument