smbfs_subr.c

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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 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/kernel.h>
   37 #include <sys/clock.h>
   38 #include <sys/malloc.h>
   39 #include <sys/time.h>
   40 #include <sys/vnode.h>
   41 #include <sys/sysctl.h>
   42 #include <sys/iconv.h>
   43 
   44 #include <netsmb/smb.h>
   45 #include <netsmb/smb_conn.h>
   46 #include <netsmb/smb_subr.h>
   47 #include <netsmb/smb_rq.h>
   48 #include <netsmb/smb_dev.h>
   49 
   50 #include <fs/smbfs/smbfs.h>
   51 #include <fs/smbfs/smbfs_node.h>
   52 #include <fs/smbfs/smbfs_subr.h>
   53 
   54 MALLOC_DEFINE(M_SMBFSDATA, "smbfs_data", "SMBFS private data");
   55 
   56 void
   57 smb_time_local2server(struct timespec *tsp, int tzoff, u_long *seconds)
   58 {
   59         *seconds = tsp->tv_sec - tzoff * 60 /*- tz_minuteswest * 60 -
   60             (wall_cmos_clock ? adjkerntz : 0)*/;
   61 }
   62 
   63 void
   64 smb_time_server2local(u_long seconds, int tzoff, struct timespec *tsp)
   65 {
   66         tsp->tv_sec = seconds + tzoff * 60;
   67             /*+ tz_minuteswest * 60 + (wall_cmos_clock ? adjkerntz : 0)*/;
   68 }
   69 
   70 /*
   71  * Number of seconds between 1970 and 1601 year
   72  */
   73 static int64_t DIFF1970TO1601 = 11644473600ULL;
   74 
   75 /*
   76  * Time from server comes as UTC, so no need to use tz
   77  */
   78 void
   79 smb_time_NT2local(int64_t nsec, int tzoff, struct timespec *tsp)
   80 {
   81         smb_time_server2local(nsec / 10000000 - DIFF1970TO1601, 0, tsp);
   82 }
   83 
   84 void
   85 smb_time_local2NT(struct timespec *tsp, int tzoff, int64_t *nsec)
   86 {
   87         u_long seconds;
   88 
   89         smb_time_local2server(tsp, 0, &seconds);
   90         *nsec = (((int64_t)(seconds) & ~1) + DIFF1970TO1601) * (int64_t)10000000;
   91 }
   92 
   93 void
   94 smb_time_unix2dos(struct timespec *tsp, int tzoff, u_int16_t *ddp, 
   95         u_int16_t *dtp, u_int8_t *dhp)
   96 {
   97         struct timespec tt;
   98         u_long t;
   99 
  100         tt = *tsp;
  101         smb_time_local2server(tsp, tzoff, &t);
  102         tt.tv_sec = t;
  103         timespec2fattime(&tt, 1, ddp, dtp, dhp);
  104 }
  105 
  106 void
  107 smb_dos2unixtime(u_int dd, u_int dt, u_int dh, int tzoff,
  108         struct timespec *tsp)
  109 {
  110 
  111         fattime2timespec(dd, dt, dh, 1, tsp);
  112         smb_time_server2local(tsp->tv_sec, tzoff, tsp);
  113 }
  114 
  115 static int
  116 smb_fphelp(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *np,
  117         int caseopt)
  118 {
  119         struct smbmount *smp= np->n_mount;
  120         struct smbnode **npp = smp->sm_npstack;
  121         int i, error = 0;
  122 
  123 /*      simple_lock(&smp->sm_npslock);*/
  124         i = 0;
  125         while (np->n_parent) {
  126                 if (i++ == SMBFS_MAXPATHCOMP) {
  127 /*                      simple_unlock(&smp->sm_npslock);*/
  128                         return ENAMETOOLONG;
  129                 }
  130                 *npp++ = np;
  131                 if ((np->n_flag & NREFPARENT) == 0)
  132                         break;
  133                 np = VTOSMB(np->n_parent);
  134         }
  135 /*      if (i == 0)
  136                 return smb_put_dmem(mbp, vcp, "\\", 2, caseopt);*/
  137         while (i--) {
  138                 np = *--npp;
  139                 if (SMB_UNICODE_STRINGS(vcp))
  140                         error = mb_put_uint16le(mbp, '\\');
  141                 else
  142                         error = mb_put_uint8(mbp, '\\');
  143                 if (error)
  144                         break;
  145                 error = smb_put_dmem(mbp, vcp, np->n_name, np->n_nmlen, caseopt);
  146                 if (error)
  147                         break;
  148         }
  149 /*      simple_unlock(&smp->sm_npslock);*/
  150         return error;
  151 }
  152 
  153 int
  154 smbfs_fullpath(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *dnp,
  155         const char *name, int nmlen)
  156 {
  157         int caseopt = SMB_CS_NONE;
  158         int error;
  159 
  160         if (SMB_UNICODE_STRINGS(vcp)) {
  161                 error = mb_put_padbyte(mbp);
  162                 if (error)
  163                         return error;
  164         }
  165         if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0)
  166                 caseopt |= SMB_CS_UPPER;
  167         if (dnp != NULL) {
  168                 error = smb_fphelp(mbp, vcp, dnp, caseopt);
  169                 if (error)
  170                         return error;
  171         }
  172         if (name) {
  173                 if (SMB_UNICODE_STRINGS(vcp))
  174                         error = mb_put_uint16le(mbp, '\\');
  175                 else
  176                         error = mb_put_uint8(mbp, '\\');
  177                 if (error)
  178                         return error;
  179                 error = smb_put_dmem(mbp, vcp, name, nmlen, caseopt);
  180                 if (error)
  181                         return error;
  182         }
  183         error = mb_put_uint8(mbp, 0);
  184         if (SMB_UNICODE_STRINGS(vcp) && error == 0)
  185                 error = mb_put_uint8(mbp, 0);
  186         return error;
  187 }
  188 
  189 int
  190 smbfs_fname_tolocal(struct smb_vc *vcp, char *name, int *nmlen, int caseopt)
  191 {
  192         int copt = (caseopt == SMB_CS_LOWER ? KICONV_FROM_LOWER : 
  193                     (caseopt == SMB_CS_UPPER ? KICONV_FROM_UPPER : 0));
  194         int error = 0;
  195         size_t ilen = *nmlen;
  196         size_t olen;
  197         char *ibuf = name;
  198         char outbuf[SMB_MAXFNAMELEN];
  199         char *obuf = outbuf;
  200 
  201         if (vcp->vc_tolocal) {
  202                 olen = sizeof(outbuf);
  203                 bzero(outbuf, sizeof(outbuf));
  204 
  205                 /*
  206                 error = iconv_conv_case
  207                         (vcp->vc_tolocal, NULL, NULL, &obuf, &olen, copt);
  208                 if (error) return error;
  209                 */
  210 
  211                 error = iconv_conv_case
  212                         (vcp->vc_tolocal, (const char **)&ibuf, &ilen, &obuf, &olen, copt);
  213                 if (error && SMB_UNICODE_STRINGS(vcp)) {
  214                         /*
  215                          * If using unicode, leaving a file name as it was when
  216                          * convert fails will cause a problem because the file name
  217                          * will contain NULL.
  218                          * Here, put '?' and give converted file name.
  219                          */
  220                         *obuf = '?';
  221                         olen--;
  222                         error = 0;
  223                 }
  224                 if (!error) {
  225                         *nmlen = sizeof(outbuf) - olen;
  226                         memcpy(name, outbuf, *nmlen);
  227                 }
  228         }
  229         return error;
  230 }

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FreeBSD/Linux Kernel Cross Reference sys/fs/smbfs/smbfs_subr.c

FreeBSD/Linux Kernel Cross Reference
sys/fs/smbfs/smbfs_subr.c