--- /dev/null
+/*
+ * 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>
+#include <linux/mutex.h>
+#include <linux/backing-dev.h>
+#include <linux/workqueue.h>
+
+#define NCP_DEFAULT_OPTIONS 0 /* 2 for packet signatures */
+
+struct sock;
+
+struct ncp_mount_data_kernel {
+ unsigned long flags; /* NCP_MOUNT_* flags */
+ unsigned int int_flags; /* internal flags */
+#define NCP_IMOUNT_LOGGEDIN_POSSIBLE 0x0001
+ kuid_t mounted_uid; /* Who may umount() this filesystem? */
+ struct pid *wdog_pid; /* Who cares for our watchdog packets? */
+ unsigned int ncp_fd; /* The socket to the ncp port */
+ unsigned int time_out; /* How long should I wait after
+ sending a NCP request? */
+ unsigned int retry_count; /* And how often should I retry? */
+ unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
+ kuid_t uid;
+ kgid_t gid;
+ umode_t file_mode;
+ umode_t dir_mode;
+ int info_fd;
+};
+
+struct ncp_server {
+ struct rcu_head rcu;
+ 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 socket *ncp_sock;/* ncp socket */
+ 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 */
+ unsigned char *txbuf; /* Storage for current request */
+ unsigned char *rxbuf; /* Storage for reply to current request */
+
+ int lock; /* To prevent mismatch in protocols. */
+ struct mutex mutex;
+
+ int current_size; /* for packet preparation */
+ int has_subfunction;
+ int ncp_reply_size;
+
+ int root_setuped;
+ struct mutex root_setup_lock;
+
+ /* 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;
+ struct rw_semaphore auth_rwsem;
+
+ /* nls info: codepage for volume and charset for I/O */
+ struct nls_table *nls_vol;
+ struct nls_table *nls_io;
+
+ /* maximum age in jiffies */
+ atomic_t 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);
+ 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 mutex creq_mutex; /* DGRAM only: lock accesses to rcv.creq */
+
+ unsigned int state; /* STREAM only: receiver state */
+ struct {
+ __u32 magic __packed;
+ __u32 len __packed;
+ __u16 type __packed;
+ __u16 p1 __packed;
+ __u16 p2 __packed;
+ __u16 p3 __packed;
+ __u16 type2 __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;
+ struct backing_dev_info bdi;
+};
+
+extern void ncp_tcp_rcv_proc(struct work_struct *work);
+extern void ncp_tcp_tx_proc(struct work_struct *work);
+extern void ncpdgram_rcv_proc(struct work_struct *work);
+extern void ncpdgram_timeout_proc(struct work_struct *work);
+extern void ncpdgram_timeout_call(unsigned long server);
+extern void ncp_tcp_data_ready(struct sock* sk);
+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
Code Review / kvmfornfv.git / blobdiff