ncp_fs_sb.h
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上传日期:2009-04-28
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- /*
- * ncp_fs_sb.h
- *
- * Copyright (C) 1995, 1996 by Volker Lendecke
- *
- */
- #ifndef _NCP_FS_SB
- #define _NCP_FS_SB
- #include <linux/types.h>
- #include <linux/ncp_mount.h>
- #include <linux/net.h>
- #ifdef __KERNEL__
- #include <linux/workqueue.h>
- #define NCP_DEFAULT_OPTIONS 0 /* 2 for packet signatures */
- struct sock;
- struct ncp_server {
- struct ncp_mount_data_kernel m; /* Nearly all of the mount data is of
- interest for us later, so we store
- it completely. */
- __u8 name_space[NCP_NUMBER_OF_VOLUMES + 2];
- struct file *ncp_filp; /* File pointer to ncp socket */
- struct socket *ncp_sock;/* ncp socket */
- struct file *info_filp;
- struct socket *info_sock;
- u8 sequence;
- u8 task;
- u16 connection; /* Remote connection number */
- u8 completion; /* Status message from server */
- u8 conn_status; /* Bit 4 = 1 ==> Server going down, no
- requests allowed anymore.
- Bit 0 = 1 ==> Server is down. */
- int buffer_size; /* Negotiated bufsize */
- int reply_size; /* Size of last reply */
- int packet_size;
- unsigned char *packet; /* Here we prepare requests and
- receive replies */
- int lock; /* To prevent mismatch in protocols. */
- struct semaphore sem;
- int current_size; /* for packet preparation */
- int has_subfunction;
- int ncp_reply_size;
- int root_setuped;
- /* info for packet signing */
- int sign_wanted; /* 1=Server needs signed packets */
- int sign_active; /* 0=don't do signing, 1=do */
- char sign_root[8]; /* generated from password and encr. key */
- char sign_last[16];
- /* Authentication info: NDS or BINDERY, username */
- struct {
- int auth_type;
- size_t object_name_len;
- void* object_name;
- int object_type;
- } auth;
- /* Password info */
- struct {
- size_t len;
- void* data;
- } priv;
- /* nls info: codepage for volume and charset for I/O */
- struct nls_table *nls_vol;
- struct nls_table *nls_io;
- /* maximum age in jiffies */
- int dentry_ttl;
- /* miscellaneous */
- unsigned int flags;
- spinlock_t requests_lock; /* Lock accesses to tx.requests, tx.creq and rcv.creq when STREAM mode */
- void (*data_ready)(struct sock* sk, int len);
- void (*error_report)(struct sock* sk);
- void (*write_space)(struct sock* sk); /* STREAM mode only */
- struct {
- struct work_struct tq; /* STREAM/DGRAM: data/error ready */
- struct ncp_request_reply* creq; /* STREAM/DGRAM: awaiting reply from this request */
- struct semaphore creq_sem; /* DGRAM only: lock accesses to rcv.creq */
- unsigned int state; /* STREAM only: receiver state */
- struct {
- __u32 magic __attribute__((packed));
- __u32 len __attribute__((packed));
- __u16 type __attribute__((packed));
- __u16 p1 __attribute__((packed));
- __u16 p2 __attribute__((packed));
- __u16 p3 __attribute__((packed));
- __u16 type2 __attribute__((packed));
- } buf; /* STREAM only: temporary buffer */
- unsigned char* ptr; /* STREAM only: pointer to data */
- size_t len; /* STREAM only: length of data to receive */
- } rcv;
- struct {
- struct list_head requests; /* STREAM only: queued requests */
- struct work_struct tq; /* STREAM only: transmitter ready */
- struct ncp_request_reply* creq; /* STREAM only: currently transmitted entry */
- } tx;
- struct timer_list timeout_tm; /* DGRAM only: timeout timer */
- struct work_struct timeout_tq; /* DGRAM only: associated queue, we run timers from process context */
- int timeout_last; /* DGRAM only: current timeout length */
- int timeout_retries; /* DGRAM only: retries left */
- struct {
- size_t len;
- __u8 data[128];
- } unexpected_packet;
- };
- extern void ncp_tcp_rcv_proc(void *server);
- extern void ncp_tcp_tx_proc(void *server);
- extern void ncpdgram_rcv_proc(void *server);
- extern void ncpdgram_timeout_proc(void *server);
- extern void ncpdgram_timeout_call(unsigned long server);
- extern void ncp_tcp_data_ready(struct sock* sk, int len);
- extern void ncp_tcp_write_space(struct sock* sk);
- extern void ncp_tcp_error_report(struct sock* sk);
- #define NCP_FLAG_UTF8 1
- #define NCP_CLR_FLAG(server, flag) ((server)->flags &= ~(flag))
- #define NCP_SET_FLAG(server, flag) ((server)->flags |= (flag))
- #define NCP_IS_FLAG(server, flag) ((server)->flags & (flag))
- static inline int ncp_conn_valid(struct ncp_server *server)
- {
- return ((server->conn_status & 0x11) == 0);
- }
- static inline void ncp_invalidate_conn(struct ncp_server *server)
- {
- server->conn_status |= 0x01;
- }
- #endif /* __KERNEL__ */
- #endif
-