FreeBSD/Linux Kernel Cross Reference
sys/netncp/ncp_ncp.h

     /*-
      * 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *    This product includes software developed by Boris Popov.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * 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_NCP_H_
    #define _NETNCP_NCP_NCP_H_
    
    #define NCP_ALLOC_SLOT          0x1111
    #define NCP_REQUEST             0x2222
    #define NCP_REPLY               0x3333
    #define NCP_FREE_SLOT           0x5555
    #define NCP_PACKET_BURST        0x7777
    #define NCP_POSITIVE_ACK        0x9999
    
    /*
     * Bits for connection state field in ncp_rphdr
     */
    #define NCP_CS_BAD_CONN         0x01    /* no such connection */
    #define NCP_CS_NO_SLOTS         0x04    /* no connection slots available */
    #define NCP_CS_SERVER_DOWN      0x10    /* server in down state */
    #define NCP_CS_HAVE_BROADCAST   0x40    /* server holds broadcast for us */
    
    #define NCP_RETRY_COUNT         5
    #define NCP_RETRY_TIMEOUT       10
    #define NCP_RESTORE_COUNT       2       /* how many times try to restore per 
                                             * single request, should be an _even_ */
    
    struct ncp_rqhdr {
            u_int16_t type;
            u_int8_t  seq;
            u_int8_t  conn_low;
            u_int8_t  task;
            u_int8_t  conn_high;
            u_int8_t  fn;
            u_int8_t  data[0];
    } __packed;
    
    
    struct ncp_rphdr {
            u_int16_t       type;
            u_int8_t        seq;
            u_int8_t        conn_low;
            u_int8_t        task;
            u_int8_t        conn_high;
            u_int8_t        completion_code;
            u_int8_t        connection_state;
            u_int8_t        data[0];
    }__packed;
    
    #define BFL_ABT         0x04
    #define BFL_EOB         0x10
    #define BFL_SYS         0x80
    
    #define BOP_READ        1L
    #define BOP_WRITE       2L
    
    #define BERR_NONE       0
    #define BERR_INIT       1
    #define BERR_IO         2
    #define BERR_NODATA     3
    #define BERR_WRITE      4
    
    struct ncp_bursthdr {
            u_short bh_type;
            u_char  bh_flags;
            u_char  bh_streamtype;
            u_long  bh_srcid;
            u_long  bh_dstid;
            u_long  bh_seq;                 /* HL */
            u_long  bh_send_delay;          /* HL */
           u_short bh_bseq;                /* HL */
           u_short bh_aseq;                /* HL */
           u_long  bh_blen;                /* HL */
           u_long  bh_dofs;                /* HL */
           u_short bh_dlen;                /* HL */
           u_short bh_misfrags;            /* HL */
   } __packed;
   
   struct ncp_conn;
   struct ncp_conn_args;
   struct ncp_rq;
   struct ucred;
   
   int  ncp_ncp_connect(struct ncp_conn *conn);
   int  ncp_ncp_disconnect(struct ncp_conn *conn);
   int  ncp_negotiate_buffersize(struct ncp_conn *conn, int size, int *target);
   int  ncp_renegotiate_connparam(struct ncp_conn *conn, int buffsize,
           u_int8_t in_options);
   int  ncp_get_bindery_object_id(struct ncp_conn *conn, 
                   u_int16_t object_type, char *object_name, 
                   struct ncp_bindery_object *target,
                   struct thread *td,struct ucred *cred);
   int  ncp_get_encryption_key(struct ncp_conn *conn, char *target);
   int  ncp_login_encrypted(struct ncp_conn *conn,
           struct ncp_bindery_object *object,
           const u_char *key, const u_char *passwd,
           struct thread *td, struct ucred *cred);
   int ncp_login_unencrypted(struct ncp_conn *conn, u_int16_t object_type, 
           const char *object_name, const u_char *passwd,
           struct thread *td, struct ucred *cred);
   int  ncp_read(struct ncp_conn *conn, ncp_fh *file, struct uio *uiop, struct ucred *cred);
   int  ncp_write(struct ncp_conn *conn, ncp_fh *file, struct uio *uiop, struct ucred *cred);
   
   #endif /* _NCP_NCP_H_ */

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