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authorJelmer Vernooij <jelmer@samba.org>2008-03-05 19:42:15 +0100
committerJelmer Vernooij <jelmer@samba.org>2008-03-05 19:42:15 +0100
commit63036a6f3380652c0cb54627bdeabcd212fa2f8c (patch)
tree90194f23cb1e6ca483e7773233c326a9b705f85f /source3/client/smbmnt.c
parentd41d580c600e3228ff8fee5c16c47580f661a240 (diff)
parent932c287a406048759fa1ac4bf86e29d96991ded1 (diff)
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Merge branch 'v3-2-test' of ssh://git.samba.org/data/git/samba into v3-2-test
(This used to be commit 3482cd9b0e81bbc801f1cec33fca82fc45a3ddef)
Diffstat (limited to 'source3/client/smbmnt.c')
-rw-r--r--source3/client/smbmnt.c332
1 files changed, 0 insertions, 332 deletions
diff --git a/source3/client/smbmnt.c b/source3/client/smbmnt.c
deleted file mode 100644
index 198faca173..0000000000
--- a/source3/client/smbmnt.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*
- * smbmnt.c
- *
- * Copyright (C) 1995-1998 by Paal-Kr. Engstad and Volker Lendecke
- * extensively modified by Tridge
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#define SMBMOUNT_MALLOC 1
-
-#include "includes.h"
-
-#include <mntent.h>
-#include <sys/utsname.h>
-
-#include <asm/types.h>
-#include <asm/posix_types.h>
-#include <linux/smb.h>
-#include <linux/smb_mount.h>
-#include <asm/unistd.h>
-
-#ifndef MS_MGC_VAL
-/* This may look strange but MS_MGC_VAL is what we are looking for and
- is what we need from <linux/fs.h> under libc systems and is
- provided in standard includes on glibc systems. So... We
- switch on what we need... */
-#include <linux/fs.h>
-#endif
-
-static uid_t mount_uid;
-static gid_t mount_gid;
-static int mount_ro;
-static unsigned mount_fmask;
-static unsigned mount_dmask;
-static int user_mount;
-static char *options;
-
-static void
-help(void)
-{
- printf("\n");
- printf("Usage: smbmnt mount-point [options]\n");
- printf("Version %s\n\n",SAMBA_VERSION_STRING);
- printf("-s share share name on server\n"
- "-r mount read-only\n"
- "-u uid mount as uid\n"
- "-g gid mount as gid\n"
- "-f mask permission mask for files\n"
- "-d mask permission mask for directories\n"
- "-o options name=value, list of options\n"
- "-h print this help text\n");
-}
-
-static int
-parse_args(int argc, char *argv[], struct smb_mount_data *data, char **share)
-{
- int opt;
-
- while ((opt = getopt (argc, argv, "s:u:g:rf:d:o:")) != EOF)
- {
- switch (opt)
- {
- case 's':
- *share = optarg;
- break;
- case 'u':
- if (!user_mount) {
- mount_uid = strtol(optarg, NULL, 0);
- }
- break;
- case 'g':
- if (!user_mount) {
- mount_gid = strtol(optarg, NULL, 0);
- }
- break;
- case 'r':
- mount_ro = 1;
- break;
- case 'f':
- mount_fmask = strtol(optarg, NULL, 8);
- break;
- case 'd':
- mount_dmask = strtol(optarg, NULL, 8);
- break;
- case 'o':
- options = optarg;
- break;
- default:
- return -1;
- }
- }
- return 0;
-
-}
-
-static char *
-fullpath(const char *p)
-{
- char path[PATH_MAX+1];
-
- if (strlen(p) > PATH_MAX) {
- return NULL;
- }
-
- if (realpath(p, path) == NULL) {
- fprintf(stderr,"Failed to find real path for mount point %s: %s\n",
- p, strerror(errno));
- exit(1);
- }
- return strdup(path);
-}
-
-/* Check whether user is allowed to mount on the specified mount point. If it's
- OK then we change into that directory - this prevents race conditions */
-static int mount_ok(char *mount_point)
-{
- struct stat st;
-
- if (chdir(mount_point) != 0) {
- return -1;
- }
-
- if (stat(".", &st) != 0) {
- return -1;
- }
-
- if (!S_ISDIR(st.st_mode)) {
- errno = ENOTDIR;
- return -1;
- }
-
- if ((getuid() != 0) &&
- ((getuid() != st.st_uid) ||
- ((st.st_mode & S_IRWXU) != S_IRWXU))) {
- errno = EPERM;
- return -1;
- }
-
- return 0;
-}
-
-/* Tries to mount using the appropriate format. For 2.2 the struct,
- for 2.4 the ascii version. */
-static int
-do_mount(char *share_name, unsigned int flags, struct smb_mount_data *data)
-{
- char *opts;
- struct utsname uts;
- char *release, *major, *minor;
- char *data1, *data2;
- int ret;
- char *saveptr = NULL;
-
- if (asprintf(&opts,
- "version=7,uid=%d,gid=%d,file_mode=0%o,dir_mode=0%o,%s",
- mount_uid, mount_gid, data->file_mode,
- data->dir_mode,options) < 0) {
- return -1;
- }
-
- uname(&uts);
- release = uts.release;
- major = strtok_r(release, ".", &saveptr);
- minor = strtok_r(NULL, ".", &saveptr);
- if (major && minor && atoi(major) == 2 && atoi(minor) < 4) {
- /* < 2.4, assume struct */
- data1 = (char *) data;
- data2 = opts;
- } else {
- /* >= 2.4, assume ascii but fall back on struct */
- data1 = opts;
- data2 = (char *) data;
- }
-
- if (mount(share_name, ".", "smbfs", flags, data1) == 0) {
- SAFE_FREE(opts);
- return 0;
- }
- ret = mount(share_name, ".", "smbfs", flags, data2);
- SAFE_FREE(opts);
- return ret;
-}
-
- int main(int argc, char *argv[])
-{
- char *mount_point, *share_name = NULL;
- FILE *mtab;
- int fd;
- unsigned int flags;
- struct smb_mount_data data;
- struct mntent ment;
-
- memset(&data, 0, sizeof(struct smb_mount_data));
-
- if (argc < 2) {
- help();
- exit(1);
- }
-
- if (argv[1][0] == '-') {
- help();
- exit(1);
- }
-
- if (getuid() != 0) {
- user_mount = 1;
- }
-
- if (geteuid() != 0) {
- fprintf(stderr, "smbmnt must be installed suid root for direct user mounts (%d,%d)\n", getuid(), geteuid());
- exit(1);
- }
-
- mount_uid = getuid();
- mount_gid = getgid();
- mount_fmask = umask(0);
- umask(mount_fmask);
- mount_fmask = ~mount_fmask;
-
- mount_point = fullpath(argv[1]);
-
- argv += 1;
- argc -= 1;
-
- if (mount_ok(mount_point) != 0) {
- fprintf(stderr, "cannot mount on %s: %s\n",
- mount_point, strerror(errno));
- exit(1);
- }
-
- data.version = SMB_MOUNT_VERSION;
-
- /* getuid() gives us the real uid, who may umount the fs */
- data.mounted_uid = getuid();
-
- if (parse_args(argc, argv, &data, &share_name) != 0) {
- help();
- return -1;
- }
-
- data.uid = mount_uid; // truncates to 16-bits here!!!
- data.gid = mount_gid;
- data.file_mode = (S_IRWXU|S_IRWXG|S_IRWXO) & mount_fmask;
- data.dir_mode = (S_IRWXU|S_IRWXG|S_IRWXO) & mount_dmask;
-
- if (mount_dmask == 0) {
- data.dir_mode = data.file_mode;
- if ((data.dir_mode & S_IRUSR) != 0)
- data.dir_mode |= S_IXUSR;
- if ((data.dir_mode & S_IRGRP) != 0)
- data.dir_mode |= S_IXGRP;
- if ((data.dir_mode & S_IROTH) != 0)
- data.dir_mode |= S_IXOTH;
- }
-
- flags = MS_MGC_VAL | MS_NOSUID | MS_NODEV;
-
- if (mount_ro) flags |= MS_RDONLY;
-
- if (do_mount(share_name, flags, &data) < 0) {
- switch (errno) {
- case ENODEV:
- fprintf(stderr, "ERROR: smbfs filesystem not supported by the kernel\n");
- break;
- default:
- perror("mount error");
- }
- fprintf(stderr, "Please refer to the smbmnt(8) manual page\n");
- return -1;
- }
-
- ment.mnt_fsname = share_name ? share_name : (char *)"none";
- ment.mnt_dir = mount_point;
- ment.mnt_type = (char *)"smbfs";
- ment.mnt_opts = (char *)"";
- ment.mnt_freq = 0;
- ment.mnt_passno= 0;
-
- mount_point = ment.mnt_dir;
-
- if (mount_point == NULL)
- {
- fprintf(stderr, "Mount point too long\n");
- return -1;
- }
-
- if ((fd = open(MOUNTED"~", O_RDWR|O_CREAT|O_EXCL, 0600)) == -1)
- {
- fprintf(stderr, "Can't get "MOUNTED"~ lock file");
- return 1;
- }
- close(fd);
-
- if ((mtab = setmntent(MOUNTED, "a+")) == NULL)
- {
- fprintf(stderr, "Can't open " MOUNTED);
- return 1;
- }
-
- if (addmntent(mtab, &ment) == 1)
- {
- fprintf(stderr, "Can't write mount entry");
- return 1;
- }
- if (fchmod(fileno(mtab), 0644) == -1)
- {
- fprintf(stderr, "Can't set perms on "MOUNTED);
- return 1;
- }
- endmntent(mtab);
-
- if (unlink(MOUNTED"~") == -1)
- {
- fprintf(stderr, "Can't remove "MOUNTED"~");
- return 1;
- }
-
- return 0;
-}