/* $NetBSD: mount_filecore.c,v 1.21 2020/07/26 08:20:22 mlelstv Exp $ */ /* * Copyright (c) 1992, 1993, 1994 The Regents of the University of California. * All rights reserved. * * This code is contains code contributed to the NetBSD project by * Christopher G. Demetriou * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * mount_filecore.c 1.1 1998/6/26 */ /* * Copyright (c) 1998 Andrew McMurry * * This code is contains code contributed to the NetBSD project by * Christopher G. Demetriou * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * mount_filecore.c 1.1 1998/6/26 */ #include <sys/cdefs.h> #ifndef lint __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\ The Regents of the University of California.\ Copyright (c) 1998 Andrew McMurry. All rights reserved."); #endif /* not lint */ #include <sys/param.h> #include <sys/mount.h> #include <err.h> #include <grp.h> #include <pwd.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <unistd.h> #include <util.h> #include <filecorefs/filecore_mount.h> #include <mntopts.h> #include "mountprog.h" static const struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_UPDATE, MOPT_GETARGS, MOPT_NULL, }; int mount_filecore(int argc, char **argv); __dead static void usage(void); #ifndef MOUNT_NOMAIN int main(int argc, char **argv) { return mount_filecore(argc, argv); } #endif int mount_filecore(int argc, char **argv) { struct filecore_args args; int ch, mntflags, opts, useuid; char *dev, *dir, canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN]; mntoptparse_t mp; mntflags = opts = 0; useuid = 1; args.uid = 0; args.gid = 0; while ((ch = getopt(argc, argv, "anRfu:g:o:")) != -1) switch (ch) { case 'a': args.flags |= FILECOREMNT_ALLACCESS; break; case 'n': args.flags |= FILECOREMNT_OWNACCESS; break; case 'R': args.flags |= FILECOREMNT_OWNREAD; break; case 'f': args.flags |= FILECOREMNT_FILETYPE; break; case 'u': args.uid = a_uid(optarg); useuid = 0; break; case 'g': args.gid = a_gid(optarg); useuid = 0; break; case 'o': mp = getmntopts(optarg, mopts, &mntflags, 0); if (mp == NULL) err(1, "getmntopts"); freemntopts(mp); break; case '?': default: usage(); } argc -= optind; argv += optind; if (argc != 2) usage(); pathadj(argv[0], canon_dev); dev = canon_dev; pathadj(argv[0], canon_dir); dir = canon_dir; #define DEFAULT_ROOTUID -2 /* * FILECORE filesystems are not writable. */ mntflags |= MNT_RDONLY; if (useuid) args.flags |= FILECOREMNT_USEUID; args.fspec = dev; args.flags = opts; if (mount(MOUNT_FILECORE, dir, mntflags, &args, sizeof args) == -1) err(1, "%s on %s", dev, dir); if (mntflags & MNT_GETARGS) { char buf[1024]; (void)snprintb(buf, sizeof(buf), FILECOREMNT_BITS, args.flags); printf("uid=%d, gid=%d, flags=%s\n", args.uid, args.gid, buf); } exit(0); } static void usage(void) { (void)fprintf(stderr, "usage: mount_filecore [-afnR] [-g gid] [-o options] [-u uid] special node\n"); exit(1); }
