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