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  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/9.2/sys/netsmb/smb_rq.h 206361 2010-04-07 16:50:38Z joel $
   27  */
   28 #ifndef _NETSMB_SMB_RQ_H_
   29 #define _NETSMB_SMB_RQ_H_
   30 
   31 #ifndef MB_MSYSTEM
   32 #include <sys/mchain.h>
   33 #endif
   34 
   35 #define SMBR_ALLOCED            0x0001  /* structure was malloced */
   36 #define SMBR_SENT               0x0002  /* request successfully transmitted */
   37 #define SMBR_REXMIT             0x0004  /* request should be retransmitted */
   38 #define SMBR_INTR               0x0008  /* request interrupted */
   39 #define SMBR_RESTART            0x0010  /* request should be repeated if possible */
   40 #define SMBR_NORESTART          0x0020  /* request is not restartable */
   41 #define SMBR_MULTIPACKET        0x0040  /* multiple packets can be sent and received */
   42 #define SMBR_INTERNAL           0x0080  /* request is internal to smbrqd */
   43 #define SMBR_XLOCK              0x0100  /* request locked and can't be moved */
   44 #define SMBR_XLOCKWANT          0x0200  /* waiter on XLOCK */
   45 
   46 #define SMBT2_ALLSENT           0x0001  /* all data and params are sent */
   47 #define SMBT2_ALLRECV           0x0002  /* all data and params are received */
   48 #define SMBT2_ALLOCED           0x0004
   49 #define SMBT2_RESTART           0x0008
   50 #define SMBT2_NORESTART         0x0010
   51 #define SMBT2_SECONDARY         0x0020  /* secondary request */
   52 
   53 #define SMBRQ_SLOCK(rqp)        smb_sl_lock(&(rqp)->sr_slock)
   54 #define SMBRQ_SUNLOCK(rqp)      smb_sl_unlock(&(rqp)->sr_slock)
   55 #define SMBRQ_SLOCKPTR(rqp)     (&(rqp)->sr_slock)
   56 
   57 
   58 enum smbrq_state {
   59         SMBRQ_NOTSENT,          /* rq have data to send */
   60         SMBRQ_SENT,             /* send procedure completed */
   61         SMBRQ_REPLYRECEIVED,
   62         SMBRQ_NOTIFIED          /* owner notified about completion */
   63 };
   64 
   65 struct smb_vc;
   66 struct smb_t2rq;
   67 
   68 struct smb_rq {
   69         enum smbrq_state        sr_state;
   70         struct smb_vc *         sr_vc;
   71         struct smb_share*       sr_share;
   72         u_short                 sr_mid;
   73         u_int32_t               sr_seqno;
   74         u_int32_t               sr_rseqno;
   75         struct mbchain          sr_rq;
   76         u_int8_t                sr_rqflags;
   77         u_int16_t               sr_rqflags2;
   78         u_char *                sr_wcount;
   79         void *                  sr_bcount;      /* Points to 2-byte buffer. */
   80         struct mdchain          sr_rp;
   81         int                     sr_rpgen;
   82         int                     sr_rplast;
   83         int                     sr_flags;       /* SMBR_* */
   84         int                     sr_rpsize;
   85         struct smb_cred *       sr_cred;
   86         int                     sr_timo;
   87         int                     sr_rexmit;
   88         int                     sr_sendcnt;
   89         struct timespec         sr_timesent;
   90         int                     sr_lerror;
   91         u_int8_t *              sr_rqsig;
   92         void *                  sr_rqtid;       /* Points to 2-byte buffer. */
   93         void *                  sr_rquid;       /* Points to 2-byte buffer. */
   94         u_int8_t                sr_errclass;
   95         u_int16_t               sr_serror;
   96         u_int32_t               sr_error;
   97         u_int8_t                sr_rpflags;
   98         u_int16_t               sr_rpflags2;
   99         u_int16_t               sr_rptid;
  100         u_int16_t               sr_rppid;
  101         u_int16_t               sr_rpuid;
  102         u_int16_t               sr_rpmid;
  103         struct smb_slock        sr_slock;       /* short term locks */
  104         struct smb_t2rq *       sr_t2;
  105         TAILQ_ENTRY(smb_rq)     sr_link;
  106 };
  107 
  108 struct smb_t2rq {
  109         u_int16_t       t2_setupcount;
  110         u_int16_t *     t2_setupdata;
  111         u_int16_t       t2_setup[2];    /* most of rqs has setupcount of 1 */
  112         u_int8_t        t2_maxscount;   /* max setup words to return */
  113         u_int16_t       t2_maxpcount;   /* max param bytes to return */
  114         u_int16_t       t2_maxdcount;   /* max data bytes to return */
  115         u_int16_t       t2_fid;         /* for T2 request */
  116         char *          t_name;         /* for T request, should be zero for T2 */
  117         int             t2_flags;       /* SMBT2_ */
  118         struct mbchain  t2_tparam;      /* parameters to transmit */
  119         struct mbchain  t2_tdata;       /* data to transmit */
  120         struct mdchain  t2_rparam;      /* received parameters */
  121         struct mdchain  t2_rdata;       /* received data */
  122         struct smb_cred*t2_cred;
  123         struct smb_connobj *t2_source;
  124         struct smb_rq * t2_rq;
  125         struct smb_vc * t2_vc;
  126 };
  127 
  128 int  smb_rq_alloc(struct smb_connobj *layer, u_char cmd,
  129         struct smb_cred *scred, struct smb_rq **rqpp);
  130 int  smb_rq_init(struct smb_rq *rqp, struct smb_connobj *layer, u_char cmd,
  131         struct smb_cred *scred);
  132 void smb_rq_done(struct smb_rq *rqp);
  133 int  smb_rq_getrequest(struct smb_rq *rqp, struct mbchain **mbpp);
  134 int  smb_rq_getreply(struct smb_rq *rqp, struct mdchain **mbpp);
  135 void smb_rq_wstart(struct smb_rq *rqp);
  136 void smb_rq_wend(struct smb_rq *rqp);
  137 void smb_rq_bstart(struct smb_rq *rqp);
  138 void smb_rq_bend(struct smb_rq *rqp);
  139 int  smb_rq_intr(struct smb_rq *rqp);
  140 int  smb_rq_simple(struct smb_rq *rqp);
  141 
  142 int  smb_t2_alloc(struct smb_connobj *layer, u_short setup, struct smb_cred *scred,
  143         struct smb_t2rq **rqpp);
  144 int  smb_t2_init(struct smb_t2rq *rqp, struct smb_connobj *layer, u_short setup,
  145         struct smb_cred *scred);
  146 void smb_t2_done(struct smb_t2rq *t2p);
  147 int  smb_t2_request(struct smb_t2rq *t2p);
  148 
  149 #endif /* !_NETSMB_SMB_RQ_H_ */

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