sbin/mount_nwfs/mount_nwfs.c

   1 /*
   2  * Copyright (c) 1999, 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: src/sbin/mount_nwfs/mount_nwfs.c,v 1.4.2.1 2000/04/17 08:34:18 bp Exp $
  33  * $DragonFly: src/sbin/mount_nwfs/mount_nwfs.c,v 1.3 2003/08/08 04:18:40 dillon Exp $
  34  */
  35 #include <sys/param.h>
  36 #include <sys/stat.h>
  37 #include <sys/errno.h>
  38 #include <sys/mount.h>
  39 #include <sys/sysctl.h>
  40 #include <machine/cpu.h>
  41
  42 #include <stdio.h>
  43 #include <string.h>
  44 #include <pwd.h>
  45 #include <grp.h>
  46 #include <unistd.h>
  47 #include <ctype.h>
  48 #include <stdlib.h>
  49 #include <err.h>
  50 #include <sysexits.h>
  51 #include <time.h>
  52
  53 #include <netncp/ncp_lib.h>
  54 #include <netncp/ncp_rcfile.h>
  55 #include <vfs/nwfs/nwfs_mount.h>
  56 #include "mntopts.h"
  57
  58 #define NWFS_VFSNAME    "nwfs"
  59
  60 static char mount_point[MAXPATHLEN + 1];
  61 static void usage(void);
  62 static int parsercfile(struct ncp_conn_loginfo *li, struct nwfs_args *mdata);
  63
  64 static struct mntopt mopts[] = {
  65         MOPT_STDOPTS,
  66         { NULL }
  67 };
  68
  69 static int
  70 parsercfile(struct ncp_conn_loginfo *li, struct nwfs_args *mdata) {
  71         return 0;
  72 }
  73
  74 int
  75 main(int argc, char *argv[]) {
  76         NWCONN_HANDLE connHandle;
  77         struct nwfs_args mdata;
  78         struct ncp_conn_loginfo li;
  79         struct stat st;
  80         struct vfsconf vfc;
  81         struct nw_entry_info einfo;
  82         struct tm *tm;
  83         time_t ltime;
  84         int opt, error, mntflags, nlsopt, wall_clock;
  85         size_t len;
  86         int mib[2];
  87         char *p, *p1, tmp[1024];
  88         u_char *pv;
  89
  90         if (argc < 2)
  91                 usage();
  92         if (argc == 2) {
  93                 if (strcmp(argv[1], "-h") == 0) {
  94                         usage();
  95                 } else if (strcmp(argv[1], "-v") == 0) {
  96                         errx(EX_OK, "version %d.%d.%d", NWFS_VERSION / 100000,
  97                             (NWFS_VERSION % 10000) / 1000,
  98                             (NWFS_VERSION % 1000) / 100);
  99                 }
 100         }
 101
 102         error = getvfsbyname(NWFS_VFSNAME, &vfc);
 103         if (error && vfsisloadable(NWFS_VFSNAME)) {
 104                 if(vfsload(NWFS_VFSNAME))
 105                         err(EX_OSERR, "vfsload("NWFS_VFSNAME")");
 106                 endvfsent();
 107                 error = getvfsbyname(NWFS_VFSNAME, &vfc);
 108         }
 109         if (error)
 110                 errx(EX_OSERR, "NetWare filesystem is not available");
 111
 112         if(ncp_initlib()) exit(1);
 113
 114         mntflags = error = 0;
 115         bzero(&mdata,sizeof(mdata));
 116         mdata.uid = mdata.gid = -1;
 117         nlsopt = 0;
 118
 119         if (ncp_li_init(&li, argc, argv)) return 1;
 120         /*
 121          * A little bit weird, but I should figure out which server/user to use
 122          * _before_ reading .rc file
 123          */
 124         if (argc >= 3 && argv[argc-1][0] != '-' && argv[argc-2][0] != '-' &&
 125             argv[argc-2][0] == '/') {
 126                 p = argv[argc-2];
 127                 error = 1;
 128                 do {
 129                         if (*p++ != '/') break;
 130                         p1 = tmp;
 131                         while (*p != ':' && *p != 0) *p1++ = *p++;
 132                         if (*p++ == 0) break;
 133                         *p1 = 0;
 134                         if (ncp_li_setserver(&li, tmp)) break;
 135                         p1 = tmp;
 136                         while (*p != '/' && *p != 0) *p1++ = *p++;
 137                         if (*p++ == 0) break;
 138                         *p1 = 0;
 139                         if (ncp_li_setuser(&li, tmp)) break;
 140                         p1 = tmp;
 141                         while (*p != '/' && *p != 0) *p1++ = *p++;
 142                         *p1 = 0;
 143                         if (strlen(tmp) > NCP_VOLNAME_LEN) {
 144                                 warnx("volume name too long: %s", tmp);
 145                                 break;
 146                         }
 147                         ncp_str_upper(strcpy(mdata.mounted_vol,tmp));
 148                         if (*p == '/')
 149                                 p++;
 150                         p1 = mdata.root_path + 2;
 151                         pv = mdata.root_path + 1;
 152                         for(;*p;) {
 153                                 *pv = 0;
 154                                 while (*p != '/' && *p) {
 155                                         *p1++ = *p++;
 156                                         (*pv)++;
 157                                 }
 158                                 if (*pv) {
 159                                         ncp_nls_mem_u2n(pv + 1, pv + 1, *pv);
 160                                         pv += (*pv) + 1;
 161                                         mdata.root_path[0]++;
 162                                 }
 163                                 if (*p++ == 0) break;
 164                                 p1++;
 165                         }
 166                         error = 0;
 167                 } while(0);
 168                 if (error)
 169                         errx(EX_DATAERR,
 170                             "an error occurred while parsing '%s'",
 171                             argv[argc - 2]);
 172         }
 173         if (ncp_li_readrc(&li)) return 1;
 174         if (ncp_rc) {
 175                 parsercfile(&li,&mdata);
 176                 rc_close(ncp_rc);
 177         }
 178         while ((opt = getopt(argc, argv, STDPARAM_OPT"V:c:d:f:g:l:n:o:u:w:")) != -1) {
 179                 switch (opt) {
 180                     case STDPARAM_ARGS:
 181                         if (ncp_li_arg(&li, opt, optarg)) {
 182                                 return 1;
 183                         }
 184                         break;
 185                     case 'V':
 186                         if (strlen(optarg) > NCP_VOLNAME_LEN)
 187                                 errx(EX_DATAERR, "volume too long: %s", optarg);
 188                         ncp_str_upper(strcpy(mdata.mounted_vol,optarg));
 189                         break;
 190                     case 'u': {
 191                         struct passwd *pwd;
 192
 193                         pwd = isdigit(optarg[0]) ?
 194                             getpwuid(atoi(optarg)) : getpwnam(optarg);
 195                         if (pwd == NULL)
 196                                 errx(EX_NOUSER, "unknown user '%s'", optarg);
 197                         mdata.uid = pwd->pw_uid;
 198                         break;
 199                     }
 200                     case 'g': {
 201                         struct group *grp;
 202
 203                         grp = isdigit(optarg[0]) ?
 204                             getgrgid(atoi(optarg)) : getgrnam(optarg);
 205                         if (grp == NULL)
 206                                 errx(EX_NOUSER, "unknown group '%s'", optarg);
 207                         mdata.gid = grp->gr_gid;
 208                         break;
 209                     }
 210                     case 'd':
 211                         errno = 0;
 212                         mdata.dir_mode = strtol(optarg, &p, 8);
 213                         if (errno || *p != 0)
 214                                 errx(EX_DATAERR, "invalid value for directory mode");
 215                         break;
 216                     case 'f':
 217                         errno = 0;
 218                         mdata.file_mode = strtol(optarg, &p, 8);
 219                         if (errno || *p != 0)
 220                                 errx(EX_DATAERR, "invalid value for file mode");
 221                         break;
 222                     case '?':
 223                         usage();
 224                         /*NOTREACHED*/
 225                     case 'n': {
 226                         char *inp, *nsp;
 227
 228                         nsp = inp = optarg;
 229                         while ((nsp = strsep(&inp, ",;:")) != NULL) {
 230                                 if (strcasecmp(nsp, "OS2") == 0)
 231                                         mdata.flags |= NWFS_MOUNT_NO_OS2;
 232                                 else if (strcasecmp(nsp, "LONG") == 0)
 233                                         mdata.flags |= NWFS_MOUNT_NO_LONG;
 234                                 else if (strcasecmp(nsp, "NFS") == 0)
 235                                         mdata.flags |= NWFS_MOUNT_NO_NFS;
 236                                 else
 237                                         errx(EX_DATAERR, "unknown namespace '%s'", nsp);
 238                         }
 239                         break;
 240                     };
 241                     case 'l':
 242                         if (ncp_nls_setlocale(optarg) != 0) return 1;
 243                         mdata.flags |= NWFS_MOUNT_HAVE_NLS;
 244                         break;
 245                     case 'o':
 246                         getmntopts(optarg, mopts, &mntflags, 0);
 247                         break;
 248                     case 'c':
 249                         switch (optarg[0]) {
 250                             case 'l':
 251                                 nlsopt |= NWHP_LOWER;
 252                                 break;
 253                             case 'u':
 254                                 nlsopt |= NWHP_UPPER;
 255                                 break;
 256                             case 'n':
 257                                 nlsopt |= NWHP_LOWER | NWHP_UPPER;
 258                                 break;
 259                             case 'L':
 260                                 nlsopt |= NWHP_LOWER | NWHP_NOSTRICT;
 261                                 break;
 262                             case 'U':
 263                                 nlsopt |= NWHP_UPPER | NWHP_NOSTRICT;
 264                                 break;
 265                             default:
 266                                 errx(EX_DATAERR, "invalid suboption '%c' for -c",
 267                                     optarg[0]);
 268                         }
 269                         break;
 270                     case 'w':
 271                         if (ncp_nls_setrecodebyname(optarg) != 0)
 272                                 return 1;
 273                         mdata.flags |= NWFS_MOUNT_HAVE_NLS;
 274                         break;
 275                     default:
 276                         usage();
 277                 }
 278         }
 279
 280         if (optind == argc - 2) {
 281                 optind++;
 282         } else if (mdata.mounted_vol[0] == 0)
 283                 errx(EX_USAGE, "volume name should be specified");
 284
 285         if (optind != argc - 1)
 286                 usage();
 287         realpath(argv[optind], mount_point);
 288
 289         if (stat(mount_point, &st) == -1)
 290                 err(EX_OSERR, "could not find mount point %s", mount_point);
 291         if (!S_ISDIR(st.st_mode)) {
 292                 errno = ENOTDIR;
 293                 err(EX_OSERR, "can't mount on %s", mount_point);
 294         }
 295         if (ncp_geteinfo(mount_point, &einfo) == 0)
 296                 errx(EX_OSERR, "can't mount on %s twice", mount_point);
 297
 298         if (mdata.uid == -1) {
 299                 mdata.uid = st.st_uid;
 300         }
 301         if (mdata.gid == -1) {
 302                 mdata.gid = st.st_gid;
 303         }
 304         if (mdata.file_mode == 0 ) {
 305                 mdata.file_mode = st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
 306         }
 307         if (mdata.dir_mode == 0) {
 308                 mdata.dir_mode = mdata.file_mode;
 309                 if ((mdata.dir_mode & S_IRUSR) != 0)
 310                         mdata.dir_mode |= S_IXUSR;
 311                 if ((mdata.dir_mode & S_IRGRP) != 0)
 312                         mdata.dir_mode |= S_IXGRP;
 313                 if ((mdata.dir_mode & S_IROTH) != 0)
 314                         mdata.dir_mode |= S_IXOTH;
 315         }
 316         if (li.access_mode == 0) {
 317                 li.access_mode = mdata.dir_mode;
 318         }
 319 /*      if (mdata.flags & NWFS_MOUNT_HAVE_NLS) {*/
 320                 mdata.nls = ncp_nls;
 321 /*      }*/
 322         mdata.nls.opt = nlsopt;
 323
 324         mib[0] = CTL_MACHDEP;
 325         mib[1] = CPU_WALLCLOCK;
 326         len = sizeof(wall_clock);
 327         if (sysctl(mib, 2, &wall_clock, &len, NULL, 0) == -1)
 328                 err(EX_OSERR, "get wall_clock");
 329         if (wall_clock == 0) {
 330                 time(&ltime);
 331                 tm = localtime(&ltime);
 332                 mdata.tz = -(tm->tm_gmtoff / 60);
 333         }
 334
 335         error = ncp_li_check(&li);
 336         if (error)
 337                 return 1;
 338         li.opt |= NCP_OPT_WDOG;
 339         /* well, now we can try to login, or use already established connection */
 340         error = ncp_li_login(&li, &connHandle);
 341         if (error) {
 342                 ncp_error("cannot login to server %s", error, li.server);
 343                 exit(1);
 344         }
 345         error = ncp_conn2ref(connHandle, &mdata.connRef);
 346         if (error) {
 347                 ncp_error("could not convert handle to reference", error);
 348                 ncp_disconnect(connHandle);
 349                 exit(1);
 350         }
 351         strcpy(mdata.mount_point,mount_point);
 352         mdata.version = NWFS_VERSION;
 353         error = mount(NWFS_VFSNAME, mdata.mount_point, mntflags, (void*)&mdata);
 354         if (error) {
 355                 ncp_error("mount error: %s", error, mdata.mount_point);
 356                 ncp_disconnect(connHandle);
 357                 exit(1);
 358         }
 359         /*
 360          * I'm leave along my handle, but kernel should keep own ...
 361          */
 362         ncp_disconnect(connHandle);
 363         /* we are done ?, impossible ... */
 364         return 0;
 365 }
 366
 367 static void
 368 usage(void)
 369 {
 370         fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
 371         "usage: mount_nwfs [-Chv] -S server -U user [-connection options]",
 372         "                  -V volume [-M mode] [-c case] [-d mode] [-f mode]",
 373         "                  [-g gid] [-l locale] [-n os2] [-u uid] [-w scheme]",
 374         "                  node",
 375         "       mount_nwfs [-options] /server:user/volume[/path] node");
 376
 377         exit (1);
 378 }