-/*-

- * Copyright (c) 1999 Boris Popov

- * All rights reserved.

- *

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions

- * are met:

- * 1. Redistributions of source code must retain the above copyright

- * notice, this list of conditions and the following disclaimer.

- * 2. Redistributions in binary form must reproduce the above copyright

- * notice, this list of conditions and the following disclaimer in the

- * documentation and/or other materials provided with the distribution.

- *

- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

- * SUCH DAMAGE.

- *

- * $FreeBSD$

- */

-#ifndef _NETNCP_NCP_CONN_H_

-#define _NETNCP_NCP_CONN_H_

-

-#ifndef _NETINET_IN_H_

-#include <netinet/in.h>

-#endif

-

-#ifndef _NETIPX_IPX_H_

-#include <netipx/ipx.h>

-#endif

-

-#ifndef _SYS_SOCKET_H_

-#include <sys/socket.h>

-#endif

-

-/* type of transport we use */

-/*#define NCP_ON_IPX 0

-#define NCP_ON_TCP 1*/

-

-/* flags field in conn structure */

-#define NCPFL_SOCONN 0x0001 /* socket layer is up */

-#define NCPFL_ATTACHED 0x0002 /* ncp layer is up */

-#define NCPFL_LOGGED 0x0004 /* logged in to server */

-#define NCPFL_INVALID 0x0008 /* last request was not completed */

-#define NCPFL_INTR 0x0010 /* interrupted call */

-#define NCPFL_RESTORING 0x0020 /* trying to reconnect */

-#define NCPFL_PERMANENT 0x0040 /* no way to kill conn, when this set */

-#define NCPFL_PRIMARY 0x0080 /* have meaning only for owner */

-#define NCPFL_WASATTACHED 0x0100 /* there was at least one successfull connect */

-#define NCPFL_WASLOGGED 0x0200 /* there was at least one successfull login */

-#define NCPFL_SIGNACTIVE 0x1000 /* packet signing active */

-#define NCPFL_SIGNWANTED 0x2000 /* signing should start */

-

-/* access mode for connection */

-#define NCPM_READ 0400 /* able to fetch conn params */

-#define NCPM_WRITE 0200 /* modify/close */

-#define NCPM_EXECUTE 0100 /* run requests */

-

-#define NCP_DEFAULT_OWNER ((uid_t)-1)

-#define NCP_DEFAULT_GROUP ((uid_t)-1)

-

-

-/* args used to create connection */

-#define ncp_conn_loginfo ncp_conn_args

-struct ncp_conn_args {

- int opt;

-#define NCP_OPT_WDOG 1 /* need watch dog socket */

-#define NCP_OPT_MSG 2 /* need message socket */

-#define NCP_OPT_SIGN 4 /* signatures wanted */

-#define NCP_OPT_BIND 8 /* force bindery login */

-#define NCP_OPT_PERMANENT 0x10 /* only for refernce, completly ignored */

-#define NCP_OPT_NOUPCASEPASS 0x20 /* leave password as is */

- int sig_level; /* wanted signature level */

- char server[NCP_BINDERY_NAME_LEN+1];

- char *user;

- char *password;

- u_int32_t objtype;

- union {

- struct sockaddr addr;

- struct sockaddr_ipx ipxaddr;

- struct sockaddr_in inaddr;

- } addr;

- int timeout; /* ncp rq timeout */

- int retry_count; /* counts to give an error */

- uid_t owner; /* proposed owner of connection */

- gid_t group; /* proposed group of connection */

- mode_t access_mode; /* R/W - can do rq's, X - can see the conn */

-};

-

-#define ipxaddr addr.ipxaddr

-#define inaddr addr.inaddr

-#define saddr addr.addr

-

-/* user side structure to issue ncp calls */

-struct ncp_buf {

- int rqsize; /* request size without ncp header */

- int rpsize; /* reply size minus ncp header */

- int cc; /* completion code */

- int cs; /* connection state */

- char packet[NCP_MAX_PACKET_SIZE];/* Here we prepare requests and receive replies */

-};

-

-/*

- * Connection status, returned via sysctl(vfs.nwfs.connstat)

- */

-struct ncp_conn_stat {

- struct ncp_conn_args li;

- int connRef;

- int ref_cnt;

- int connid;

- int buffer_size;

- int flags;

- int sign_active;

- uid_t owner;

- gid_t group;

- char user[NCP_MAXUSERNAMELEN+1];

-};

-

-#ifdef _KERNEL

-

-#ifndef LK_SHARED

-#include <sys/lock.h>

-#include <sys/lockmgr.h>

-#endif

-

-struct socket;

-struct u_cred;

-

-SLIST_HEAD(ncp_conn_head,ncp_conn);

-

-struct ncp_rq;

-struct ncp_conn;

-

-/*

- * External and internal processes can reference connection only by handle.

- * This gives us a freedom in maintance of underlying connections.

- */

-struct ncp_handle {

- SLIST_ENTRY(ncp_handle) nh_next;

- int nh_id; /* handle id */

- struct ncp_conn*nh_conn; /* which conn we are refernce */

- struct thread * nh_td; /* who owns the handle */

- int nh_ref; /* one process can asquire many handles, but we return the one */

-};

-

-/*

- * Describes any connection to server

- */

-struct ncp_conn {

- SLIST_ENTRY(ncp_conn) nc_next;

- struct ncp_conn_args li;

- struct ucred *nc_owner;

- gid_t nc_group;

- int flags;

- int nc_id;

- struct socket *ncp_so;

- struct socket *wdg_so;

- struct socket *msg_so;

- struct socket *bc_so;

- int ref_cnt; /* how many handles leased */

- SLIST_HEAD(ncp_ref_hd,ncp_ref) ref_list;/* list of handles */

- struct lock nc_lock; /* excl locks */

- int nc_lwant; /* number of wanted locks */

- struct thread *td; /* pid currently operates */

- struct ucred *ucred; /* usr currently operates */

- /* Fields used to process ncp requests */

- int connid; /* assigned by server */

- u_int8_t seq;

- int buffer_size; /* Negotiated bufsize */

- /* Fields used to make packet signatures */

- u_int32_t sign_root[2];

- u_int32_t sign_state[4]; /* md4 state */

-#ifdef NCPBURST

- /* Fields used for packet bursting */

- u_long bc_pktseq; /* raw packet sequence */

- u_short bc_seq; /* burst sequence */

- u_long bc_locid; /* local connection id */

- u_long bc_remid; /* remote connection id */

- u_long bc_pktsize; /* negotiated burst packet size */

-#endif

-};

-

-int ncp_conn_init(void);

-int ncp_conn_destroy(void);

-int ncp_conn_alloc(struct ncp_conn_args *cap,

- struct thread *td, struct ucred *cred, struct ncp_conn **connid);

-int ncp_conn_free(struct ncp_conn *conn);

-int ncp_conn_access(struct ncp_conn *conn,struct ucred *cred,mode_t mode);

-int ncp_conn_lock(struct ncp_conn *conn,struct thread *td, struct ucred *cred,int mode);

-void ncp_conn_unlock(struct ncp_conn *conn,struct thread *td);

-int ncp_conn_assert_locked(struct ncp_conn *conn,const char *checker,struct thread *td);

-void ncp_conn_invalidate(struct ncp_conn *ncp);

-int ncp_conn_invalid(struct ncp_conn *ncp);

-/*int ncp_conn_ref(struct ncp_conn *conn, pid_t pid);

-int ncp_conn_rm_ref(struct ncp_conn *conn, pid_t pid, int force);

-void ncp_conn_list_rm_ref(pid_t pid);*/

-int ncp_conn_getbyref(int connRef,struct thread *td, struct ucred *cred, int mode,

- struct ncp_conn **connpp);

-int ncp_conn_getbyli(struct ncp_conn_loginfo *li,struct thread *td, struct ucred *cred,

- int mode, struct ncp_conn **connpp);

-int ncp_conn_setprimary(struct ncp_conn *conn, int on);

-int ncp_conn_locklist(int flags, struct thread *td);

-void ncp_conn_unlocklist(struct thread *td);

-int ncp_conn_gethandle(struct ncp_conn *conn, struct thread *td, struct ncp_handle **handle);

-int ncp_conn_puthandle(struct ncp_handle *handle, struct thread *td, int force);

-int ncp_conn_findhandle(int connHandle, struct thread *td, struct ncp_handle **handle);

-int ncp_conn_getattached(struct ncp_conn_args *li,struct thread *td, struct ucred *cred,int mode, struct ncp_conn **connpp);

-int ncp_conn_putprochandles(struct thread *td);

-int ncp_conn_getinfo(struct ncp_conn *ncp, struct ncp_conn_stat *ncs);

-

-int ncp_conn_reconnect(struct ncp_conn *ncp);

-int ncp_conn_login(struct ncp_conn *conn, struct thread *td, struct ucred *cred);

-

-extern struct ncp_conn_head conn_list;

-extern int ncp_burst_enabled;

-

-#ifdef MALLOC_DECLARE

-MALLOC_DECLARE(M_NCPDATA);

-#endif

-

-#endif /* _KERNEL */

-#endif /* _NCP_CONN_H_ */