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