FreeBSD/Linux Kernel Cross Reference
sys/netsmb/smb_rq.h

     /*-
      * Copyright (c) 2000-2001 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: releng/11.2/sys/netsmb/smb_rq.h 206361 2010-04-07 16:50:38Z joel $
     */
    #ifndef _NETSMB_SMB_RQ_H_
    #define _NETSMB_SMB_RQ_H_
    
    #ifndef MB_MSYSTEM
    #include <sys/mchain.h>
    #endif
    
    #define SMBR_ALLOCED            0x0001  /* structure was malloced */
    #define SMBR_SENT               0x0002  /* request successfully transmitted */
    #define SMBR_REXMIT             0x0004  /* request should be retransmitted */
    #define SMBR_INTR               0x0008  /* request interrupted */
    #define SMBR_RESTART            0x0010  /* request should be repeated if possible */
    #define SMBR_NORESTART          0x0020  /* request is not restartable */
    #define SMBR_MULTIPACKET        0x0040  /* multiple packets can be sent and received */
    #define SMBR_INTERNAL           0x0080  /* request is internal to smbrqd */
    #define SMBR_XLOCK              0x0100  /* request locked and can't be moved */
    #define SMBR_XLOCKWANT          0x0200  /* waiter on XLOCK */
    
    #define SMBT2_ALLSENT           0x0001  /* all data and params are sent */
    #define SMBT2_ALLRECV           0x0002  /* all data and params are received */
    #define SMBT2_ALLOCED           0x0004
    #define SMBT2_RESTART           0x0008
    #define SMBT2_NORESTART         0x0010
    #define SMBT2_SECONDARY         0x0020  /* secondary request */
    
    #define SMBRQ_SLOCK(rqp)        smb_sl_lock(&(rqp)->sr_slock)
    #define SMBRQ_SUNLOCK(rqp)      smb_sl_unlock(&(rqp)->sr_slock)
    #define SMBRQ_SLOCKPTR(rqp)     (&(rqp)->sr_slock)
    
    
    enum smbrq_state {
            SMBRQ_NOTSENT,          /* rq have data to send */
            SMBRQ_SENT,             /* send procedure completed */
            SMBRQ_REPLYRECEIVED,
            SMBRQ_NOTIFIED          /* owner notified about completion */
    };
    
    struct smb_vc;
    struct smb_t2rq;
    
    struct smb_rq {
            enum smbrq_state        sr_state;
            struct smb_vc *         sr_vc;
            struct smb_share*       sr_share;
            u_short                 sr_mid;
            u_int32_t               sr_seqno;
            u_int32_t               sr_rseqno;
            struct mbchain          sr_rq;
            u_int8_t                sr_rqflags;
            u_int16_t               sr_rqflags2;
            u_char *                sr_wcount;
            void *                  sr_bcount;      /* Points to 2-byte buffer. */
            struct mdchain          sr_rp;
            int                     sr_rpgen;
            int                     sr_rplast;
            int                     sr_flags;       /* SMBR_* */
            int                     sr_rpsize;
            struct smb_cred *       sr_cred;
            int                     sr_timo;
            int                     sr_rexmit;
            int                     sr_sendcnt;
            struct timespec         sr_timesent;
            int                     sr_lerror;
            u_int8_t *              sr_rqsig;
            void *                  sr_rqtid;       /* Points to 2-byte buffer. */
            void *                  sr_rquid;       /* Points to 2-byte buffer. */
            u_int8_t                sr_errclass;
            u_int16_t               sr_serror;
            u_int32_t               sr_error;
            u_int8_t                sr_rpflags;
            u_int16_t               sr_rpflags2;
            u_int16_t               sr_rptid;
           u_int16_t               sr_rppid;
           u_int16_t               sr_rpuid;
           u_int16_t               sr_rpmid;
           struct smb_slock        sr_slock;       /* short term locks */
           struct smb_t2rq *       sr_t2;
           TAILQ_ENTRY(smb_rq)     sr_link;
   };
   
   struct smb_t2rq {
           u_int16_t       t2_setupcount;
           u_int16_t *     t2_setupdata;
           u_int16_t       t2_setup[2];    /* most of rqs has setupcount of 1 */
           u_int8_t        t2_maxscount;   /* max setup words to return */
           u_int16_t       t2_maxpcount;   /* max param bytes to return */
           u_int16_t       t2_maxdcount;   /* max data bytes to return */
           u_int16_t       t2_fid;         /* for T2 request */
           char *          t_name;         /* for T request, should be zero for T2 */
           int             t2_flags;       /* SMBT2_ */
           struct mbchain  t2_tparam;      /* parameters to transmit */
           struct mbchain  t2_tdata;       /* data to transmit */
           struct mdchain  t2_rparam;      /* received parameters */
           struct mdchain  t2_rdata;       /* received data */
           struct smb_cred*t2_cred;
           struct smb_connobj *t2_source;
           struct smb_rq * t2_rq;
           struct smb_vc * t2_vc;
   };
   
   int  smb_rq_alloc(struct smb_connobj *layer, u_char cmd,
           struct smb_cred *scred, struct smb_rq **rqpp);
   int  smb_rq_init(struct smb_rq *rqp, struct smb_connobj *layer, u_char cmd,
           struct smb_cred *scred);
   void smb_rq_done(struct smb_rq *rqp);
   int  smb_rq_getrequest(struct smb_rq *rqp, struct mbchain **mbpp);
   int  smb_rq_getreply(struct smb_rq *rqp, struct mdchain **mbpp);
   void smb_rq_wstart(struct smb_rq *rqp);
   void smb_rq_wend(struct smb_rq *rqp);
   void smb_rq_bstart(struct smb_rq *rqp);
   void smb_rq_bend(struct smb_rq *rqp);
   int  smb_rq_intr(struct smb_rq *rqp);
   int  smb_rq_simple(struct smb_rq *rqp);
   
   int  smb_t2_alloc(struct smb_connobj *layer, u_short setup, struct smb_cred *scred,
           struct smb_t2rq **rqpp);
   int  smb_t2_init(struct smb_t2rq *rqp, struct smb_connobj *layer, u_short setup,
           struct smb_cred *scred);
   void smb_t2_done(struct smb_t2rq *t2p);
   int  smb_t2_request(struct smb_t2rq *t2p);
   
   #endif /* !_NETSMB_SMB_RQ_H_ */

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