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  *
   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  * $FreeBSD$
   27  */
   28 #include <sys/param.h>
   29 #include <sys/systm.h>
   30 #include <sys/kernel.h>
   31 #include <sys/clock.h>
   32 #include <sys/malloc.h>
   33 #include <sys/time.h>
   34 #include <sys/vnode.h>
   35 #include <sys/sysctl.h>
   36 #include <sys/iconv.h>
   37 
   38 #include <netsmb/smb.h>
   39 #include <netsmb/smb_conn.h>
   40 #include <netsmb/smb_subr.h>
   41 #include <netsmb/smb_rq.h>
   42 #include <netsmb/smb_dev.h>
   43 
   44 #include <fs/smbfs/smbfs.h>
   45 #include <fs/smbfs/smbfs_node.h>
   46 #include <fs/smbfs/smbfs_subr.h>
   47 
   48 MALLOC_DEFINE(M_SMBFSDATA, "smbfs_data", "SMBFS private data");
   49 
   50 void
   51 smb_time_local2server(struct timespec *tsp, int tzoff, u_long *seconds)
   52 {
   53         *seconds = tsp->tv_sec - tzoff * 60 /*- tz_minuteswest * 60 -
   54             (wall_cmos_clock ? adjkerntz : 0)*/;
   55 }
   56 
   57 void
   58 smb_time_server2local(u_long seconds, int tzoff, struct timespec *tsp)
   59 {
   60         tsp->tv_sec = seconds + tzoff * 60;
   61             /*+ tz_minuteswest * 60 + (wall_cmos_clock ? adjkerntz : 0)*/;
   62 }
   63 
   64 /*
   65  * Number of seconds between 1970 and 1601 year
   66  */
   67 static int64_t DIFF1970TO1601 = 11644473600ULL;
   68 
   69 /*
   70  * Time from server comes as UTC, so no need to use tz
   71  */
   72 void
   73 smb_time_NT2local(int64_t nsec, int tzoff, struct timespec *tsp)
   74 {
   75         smb_time_server2local(nsec / 10000000 - DIFF1970TO1601, 0, tsp);
   76 }
   77 
   78 void
   79 smb_time_local2NT(struct timespec *tsp, int tzoff, int64_t *nsec)
   80 {
   81         u_long seconds;
   82 
   83         smb_time_local2server(tsp, 0, &seconds);
   84         *nsec = (((int64_t)(seconds) & ~1) + DIFF1970TO1601) * (int64_t)10000000;
   85 }
   86 
   87 void
   88 smb_time_unix2dos(struct timespec *tsp, int tzoff, u_int16_t *ddp, 
   89         u_int16_t *dtp, u_int8_t *dhp)
   90 {
   91         struct timespec tt;
   92         u_long t;
   93 
   94         tt = *tsp;
   95         smb_time_local2server(tsp, tzoff, &t);
   96         tt.tv_sec = t;
   97         timespec2fattime(&tt, 1, ddp, dtp, dhp);
   98 }
   99 
  100 void
  101 smb_dos2unixtime(u_int dd, u_int dt, u_int dh, int tzoff,
  102         struct timespec *tsp)
  103 {
  104 
  105         fattime2timespec(dd, dt, dh, 1, tsp);
  106         smb_time_server2local(tsp->tv_sec, tzoff, tsp);
  107 }
  108 
  109 static int
  110 smb_fphelp(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *np,
  111         int caseopt)
  112 {
  113         struct smbmount *smp= np->n_mount;
  114         struct smbnode **npp = smp->sm_npstack;
  115         int i, error = 0;
  116 
  117 /*      simple_lock(&smp->sm_npslock);*/
  118         i = 0;
  119         while (np->n_parent) {
  120                 if (i++ == SMBFS_MAXPATHCOMP) {
  121 /*                      simple_unlock(&smp->sm_npslock);*/
  122                         return ENAMETOOLONG;
  123                 }
  124                 *npp++ = np;
  125                 if ((np->n_flag & NREFPARENT) == 0)
  126                         break;
  127                 np = VTOSMB(np->n_parent);
  128         }
  129 /*      if (i == 0)
  130                 return smb_put_dmem(mbp, vcp, "\\", 2, caseopt);*/
  131         while (i--) {
  132                 np = *--npp;
  133                 if (SMB_UNICODE_STRINGS(vcp))
  134                         error = mb_put_uint16le(mbp, '\\');
  135                 else
  136                         error = mb_put_uint8(mbp, '\\');
  137                 if (error)
  138                         break;
  139                 error = smb_put_dmem(mbp, vcp, np->n_name, np->n_nmlen, caseopt);
  140                 if (error)
  141                         break;
  142         }
  143 /*      simple_unlock(&smp->sm_npslock);*/
  144         return error;
  145 }
  146 
  147 int
  148 smbfs_fullpath(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *dnp,
  149         const char *name, int nmlen)
  150 {
  151         int caseopt = SMB_CS_NONE;
  152         int error;
  153 
  154         if (SMB_UNICODE_STRINGS(vcp)) {
  155                 error = mb_put_padbyte(mbp);
  156                 if (error)
  157                         return error;
  158         }
  159         if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0)
  160                 caseopt |= SMB_CS_UPPER;
  161         if (dnp != NULL) {
  162                 error = smb_fphelp(mbp, vcp, dnp, caseopt);
  163                 if (error)
  164                         return error;
  165         }
  166         if (name) {
  167                 if (SMB_UNICODE_STRINGS(vcp))
  168                         error = mb_put_uint16le(mbp, '\\');
  169                 else
  170                         error = mb_put_uint8(mbp, '\\');
  171                 if (error)
  172                         return error;
  173                 error = smb_put_dmem(mbp, vcp, name, nmlen, caseopt);
  174                 if (error)
  175                         return error;
  176         }
  177         error = mb_put_uint8(mbp, 0);
  178         if (SMB_UNICODE_STRINGS(vcp) && error == 0)
  179                 error = mb_put_uint8(mbp, 0);
  180         return error;
  181 }
  182 
  183 int
  184 smbfs_fname_tolocal(struct smb_vc *vcp, char *name, int *nmlen, int caseopt)
  185 {
  186         int copt = (caseopt == SMB_CS_LOWER ? KICONV_FROM_LOWER : 
  187                     (caseopt == SMB_CS_UPPER ? KICONV_FROM_UPPER : 0));
  188         int error = 0;
  189         size_t ilen = *nmlen;
  190         size_t olen;
  191         char *ibuf = name;
  192         char outbuf[SMB_MAXFNAMELEN];
  193         char *obuf = outbuf;
  194 
  195         if (vcp->vc_tolocal) {
  196                 olen = sizeof(outbuf);
  197                 bzero(outbuf, sizeof(outbuf));
  198 
  199                 /*
  200                 error = iconv_conv_case
  201                         (vcp->vc_tolocal, NULL, NULL, &obuf, &olen, copt);
  202                 if (error) return error;
  203                 */
  204 
  205                 error = iconv_conv_case(vcp->vc_tolocal,
  206                     __DECONST(const char **, &ibuf), &ilen, &obuf, &olen, copt);
  207                 if (error && SMB_UNICODE_STRINGS(vcp)) {
  208                         /*
  209                          * If using unicode, leaving a file name as it was when
  210                          * convert fails will cause a problem because the file name
  211                          * will contain NULL.
  212                          * Here, put '?' and give converted file name.
  213                          */
  214                         *obuf = '?';
  215                         olen--;
  216                         error = 0;
  217                 }
  218                 if (!error) {
  219                         *nmlen = sizeof(outbuf) - olen;
  220                         memcpy(name, outbuf, *nmlen);
  221                 }
  222         }
  223         return error;
  224 }

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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