The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*-
    2  * Copyright (c) 2000-2001, Boris Popov
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *    This product includes software developed by Boris Popov.
   16  * 4. Neither the name of the author nor the names of any co-contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  * $FreeBSD$
   33  */
   34 #ifndef _NETSMB_SMB_RQ_H_
   35 #define _NETSMB_SMB_RQ_H_
   36 
   37 #ifndef MB_MSYSTEM
   38 #include <sys/mchain.h>
   39 #endif
   40 
   41 #define SMBR_ALLOCED            0x0001  /* structure was malloced */
   42 #define SMBR_SENT               0x0002  /* request successfully transmitted */
   43 #define SMBR_REXMIT             0x0004  /* request should be retransmitted */
   44 #define SMBR_INTR               0x0008  /* request interrupted */
   45 #define SMBR_RESTART            0x0010  /* request should be repeated if possible */
   46 #define SMBR_NORESTART          0x0020  /* request is not restartable */
   47 #define SMBR_MULTIPACKET        0x0040  /* multiple packets can be sent and received */
   48 #define SMBR_INTERNAL           0x0080  /* request is internal to smbrqd */
   49 #define SMBR_XLOCK              0x0100  /* request locked and can't be moved */
   50 #define SMBR_XLOCKWANT          0x0200  /* waiter on XLOCK */
   51 
   52 #define SMBT2_ALLSENT           0x0001  /* all data and params are sent */
   53 #define SMBT2_ALLRECV           0x0002  /* all data and params are received */
   54 #define SMBT2_ALLOCED           0x0004
   55 #define SMBT2_RESTART           0x0008
   56 #define SMBT2_NORESTART         0x0010
   57 #define SMBT2_SECONDARY         0x0020  /* secondary request */
   58 
   59 #define SMBRQ_SLOCK(rqp)        smb_sl_lock(&(rqp)->sr_slock)
   60 #define SMBRQ_SUNLOCK(rqp)      smb_sl_unlock(&(rqp)->sr_slock)
   61 #define SMBRQ_SLOCKPTR(rqp)     (&(rqp)->sr_slock)
   62 
   63 
   64 enum smbrq_state {
   65         SMBRQ_NOTSENT,          /* rq have data to send */
   66         SMBRQ_SENT,             /* send procedure completed */
   67         SMBRQ_REPLYRECEIVED,
   68         SMBRQ_NOTIFIED          /* owner notified about completion */
   69 };
   70 
   71 struct smb_vc;
   72 struct smb_t2rq;
   73 
   74 struct smb_rq {
   75         enum smbrq_state        sr_state;
   76         struct smb_vc *         sr_vc;
   77         struct smb_share*       sr_share;
   78         u_short                 sr_mid;
   79         u_int32_t               sr_seqno;
   80         u_int32_t               sr_rseqno;
   81         struct mbchain          sr_rq;
   82         u_int8_t                sr_rqflags;
   83         u_int16_t               sr_rqflags2;
   84         u_char *                sr_wcount;
   85         void *                  sr_bcount;      /* Points to 2-byte buffer. */
   86         struct mdchain          sr_rp;
   87         int                     sr_rpgen;
   88         int                     sr_rplast;
   89         int                     sr_flags;       /* SMBR_* */
   90         int                     sr_rpsize;
   91         struct smb_cred *       sr_cred;
   92         int                     sr_timo;
   93         int                     sr_rexmit;
   94         int                     sr_sendcnt;
   95         struct timespec         sr_timesent;
   96         int                     sr_lerror;
   97         u_int8_t *              sr_rqsig;
   98         void *                  sr_rqtid;       /* Points to 2-byte buffer. */
   99         void *                  sr_rquid;       /* Points to 2-byte buffer. */
  100         u_int8_t                sr_errclass;
  101         u_int16_t               sr_serror;
  102         u_int32_t               sr_error;
  103         u_int8_t                sr_rpflags;
  104         u_int16_t               sr_rpflags2;
  105         u_int16_t               sr_rptid;
  106         u_int16_t               sr_rppid;
  107         u_int16_t               sr_rpuid;
  108         u_int16_t               sr_rpmid;
  109         struct smb_slock        sr_slock;       /* short term locks */
  110         struct smb_t2rq *       sr_t2;
  111         TAILQ_ENTRY(smb_rq)     sr_link;
  112 };
  113 
  114 struct smb_t2rq {
  115         u_int16_t       t2_setupcount;
  116         u_int16_t *     t2_setupdata;
  117         u_int16_t       t2_setup[2];    /* most of rqs has setupcount of 1 */
  118         u_int8_t        t2_maxscount;   /* max setup words to return */
  119         u_int16_t       t2_maxpcount;   /* max param bytes to return */
  120         u_int16_t       t2_maxdcount;   /* max data bytes to return */
  121         u_int16_t       t2_fid;         /* for T2 request */
  122         char *          t_name;         /* for T request, should be zero for T2 */
  123         int             t2_flags;       /* SMBT2_ */
  124         struct mbchain  t2_tparam;      /* parameters to transmit */
  125         struct mbchain  t2_tdata;       /* data to transmit */
  126         struct mdchain  t2_rparam;      /* received parameters */
  127         struct mdchain  t2_rdata;       /* received data */
  128         struct smb_cred*t2_cred;
  129         struct smb_connobj *t2_source;
  130         struct smb_rq * t2_rq;
  131         struct smb_vc * t2_vc;
  132 };
  133 
  134 int  smb_rq_alloc(struct smb_connobj *layer, u_char cmd,
  135         struct smb_cred *scred, struct smb_rq **rqpp);
  136 int  smb_rq_init(struct smb_rq *rqp, struct smb_connobj *layer, u_char cmd,
  137         struct smb_cred *scred);
  138 void smb_rq_done(struct smb_rq *rqp);
  139 int  smb_rq_getrequest(struct smb_rq *rqp, struct mbchain **mbpp);
  140 int  smb_rq_getreply(struct smb_rq *rqp, struct mdchain **mbpp);
  141 void smb_rq_wstart(struct smb_rq *rqp);
  142 void smb_rq_wend(struct smb_rq *rqp);
  143 void smb_rq_bstart(struct smb_rq *rqp);
  144 void smb_rq_bend(struct smb_rq *rqp);
  145 int  smb_rq_intr(struct smb_rq *rqp);
  146 int  smb_rq_simple(struct smb_rq *rqp);
  147 
  148 int  smb_t2_alloc(struct smb_connobj *layer, u_short setup, struct smb_cred *scred,
  149         struct smb_t2rq **rqpp);
  150 int  smb_t2_init(struct smb_t2rq *rqp, struct smb_connobj *layer, u_short setup,
  151         struct smb_cred *scred);
  152 void smb_t2_done(struct smb_t2rq *t2p);
  153 int  smb_t2_request(struct smb_t2rq *t2p);
  154 
  155 #endif /* !_NETSMB_SMB_RQ_H_ */

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