static int
autofs_bind_umount(char *mountpoint)
{
int err = 1;
#ifdef MNT2_GEN_OPT_BIND
if (bind_works && gopt.flags & CFM_AUTOFS_USE_LOFS) {
struct stat buf;
if ((err = lstat(mountpoint, &buf)))
return errno;
if (S_ISLNK(buf.st_mode))
goto use_symlink;
plog(XLOG_INFO, "autofs: un-bind-mounting %s", mountpoint);
err = umount_fs(mountpoint, mnttab_file_name, 1);
if (err)
plog(XLOG_INFO, "autofs: unmounting %s failed: %m", mountpoint);
else
err = rmdir(mountpoint);
goto out;
}
#endif /* MNT2_GEN_OPT_BIND */
use_symlink:
plog(XLOG_INFO, "autofs: deleting symlink %s", mountpoint);
err = unlink(mountpoint);
out:
if (err)
return errno;
return 0;
}
int
autofs_link_umount(am_node *mp)
{
struct stat buf;
int err;
if ((err = lstat(mp->am_path, &buf)))
return errno;
if (S_ISDIR(buf.st_mode)) {
plog(XLOG_INFO, "autofs: un-bind-mounting %s", mp->am_path);
err = umount_fs(mp->am_path, mnttab_file_name);
if (err)
plog(XLOG_INFO, "autofs: unmounting %s failed: %m", mp->am_path);
else
rmdir(mp->am_path);
} else {
plog(XLOG_INFO, "autofs: deleting symlink %s", mp->am_path);
err = unlink(mp->am_path);
}
if (err)
return errno;
return err;
}
int
mount_fs(mntent_t *mnt, int flags, caddr_t mnt_data, int retry, MTYPE_TYPE type, u_long nfs_version, const char *nfs_proto, const char *mnttabname, int on_autofs)
{
int error = 0;
#ifdef MOUNT_TABLE_ON_FILE
char *zopts = NULL, *xopts = NULL;
size_t l;
#endif /* MOUNT_TABLE_ON_FILE */
char *mnt_dir = NULL;
#ifdef NEED_AUTOFS_SPACE_HACK
char *old_mnt_dir = NULL;
/* perform space hack */
if (on_autofs) {
old_mnt_dir = mnt->mnt_dir;
mnt->mnt_dir = mnt_dir = autofs_strdup_space_hack(old_mnt_dir);
} else
#endif /* NEED_AUTOFS_SPACE_HACK */
mnt_dir = strdup(mnt->mnt_dir);
dlog("'%s' fstype " MTYPE_PRINTF_TYPE " (%s) flags %#x (%s)",
mnt_dir, type, mnt->mnt_type, flags, mnt->mnt_opts);
again:
error = MOUNT_TRAP(type, mnt, flags, mnt_data);
if (error < 0) {
plog(XLOG_ERROR, "'%s': mount: %m", mnt_dir);
/*
* The following code handles conditions which shouldn't
* occur. They are possible either because amd screws up
* in preparing for the mount, or because some human
* messed with the mount point. Both have been known to
* happen. -- stolcke 2/22/95
*/
if (errno == EBUSY) {
/*
* Also, sometimes unmount isn't called, e.g., because
* our mountlist is garbled. This leaves old mount
* points around which need to be removed before we
* can mount something new in their place.
*/
errno = umount_fs(mnt_dir, mnttabname, on_autofs);
if (errno != 0)
plog(XLOG_ERROR, "'%s': umount: %m", mnt_dir);
else {
plog(XLOG_WARNING, "extra umount required for '%s'", mnt_dir);
error = MOUNT_TRAP(type, mnt, flags, mnt_data);
}
}
}
if (error < 0 && --retry > 0) {
sleep(1);
goto again;
}
#ifdef NEED_AUTOFS_SPACE_HACK
/* Undo space hack */
if (on_autofs)
mnt->mnt_dir = old_mnt_dir;
#endif /* NEED_AUTOFS_SPACE_HACK */
if (error < 0) {
error = errno;
goto out;
}
#ifdef MOUNT_TABLE_ON_FILE
/*
* Allocate memory for options:
* dev=..., vers={2,3}, proto={tcp,udp}
*/
l = strlen(mnt->mnt_opts) + 48;
zopts = (char *) xmalloc(l);
/* copy standard options */
xopts = mnt->mnt_opts;
xstrlcpy(zopts, xopts, l);
# ifdef MNTTAB_OPT_DEV
{
/* add the extra dev= field to the mount table */
struct stat stb;
if (lstat(mnt_dir, &stb) == 0) {
char optsbuf[48];
if (sizeof(stb.st_dev) == 2) /* e.g. SunOS 4.1 */
xsnprintf(optsbuf, sizeof(optsbuf), "%s=%04lx",
MNTTAB_OPT_DEV, (u_long) stb.st_dev & 0xffff);
else /* e.g. System Vr4 */
xsnprintf(optsbuf, sizeof(optsbuf), "%s=%08lx",
MNTTAB_OPT_DEV, (u_long) stb.st_dev);
append_opts(zopts, l, optsbuf);
}
}
# endif /* MNTTAB_OPT_DEV */
# if defined(HAVE_FS_NFS3) && defined(MNTTAB_OPT_VERS)
/*
* add the extra vers={2,3} field to the mount table,
* unless already specified by user
*/
if (nfs_version == NFS_VERSION3 &&
hasmntval(mnt, MNTTAB_OPT_VERS) != NFS_VERSION3) {
char optsbuf[48];
xsnprintf(optsbuf, sizeof(optsbuf),
"%s=%d", MNTTAB_OPT_VERS, NFS_VERSION3);
append_opts(zopts, l, optsbuf);
}
# endif /* defined(HAVE_FS_NFS3) && defined(MNTTAB_OPT_VERS) */
# ifdef MNTTAB_OPT_PROTO
/*
* add the extra proto={tcp,udp} field to the mount table,
* unless already specified by user.
*/
if (nfs_proto && !amu_hasmntopt(mnt, MNTTAB_OPT_PROTO)) {
char optsbuf[48];
xsnprintf(optsbuf, sizeof(optsbuf), "%s=%s", MNTTAB_OPT_PROTO, nfs_proto);
append_opts(zopts, l, optsbuf);
}
# endif /* MNTTAB_OPT_PROTO */
/* finally, store the options into the mount table structure */
mnt->mnt_opts = zopts;
/*
* Additional fields in mntent_t
* are fixed up here
*/
# ifdef HAVE_MNTENT_T_MNT_CNODE
mnt->mnt_cnode = 0;
# endif /* HAVE_MNTENT_T_MNT_CNODE */
# ifdef HAVE_MNTENT_T_MNT_RO
mnt->mnt_ro = (amu_hasmntopt(mnt, MNTTAB_OPT_RO) != NULL);
# endif /* HAVE_MNTENT_T_MNT_RO */
# ifdef HAVE_MNTENT_T_MNT_TIME
# ifdef HAVE_MNTENT_T_MNT_TIME_STRING
{ /* allocate enough space for a long */
size_t l = 13 * sizeof(char);
char *str = (char *) xmalloc(l);
xsnprintf(str, l, "%ld", time((time_t *) NULL));
mnt->mnt_time = str;
}
# else /* not HAVE_MNTENT_T_MNT_TIME_STRING */
mnt->mnt_time = time((time_t *) NULL);
# endif /* not HAVE_MNTENT_T_MNT_TIME_STRING */
# endif /* HAVE_MNTENT_T_MNT_TIME */
write_mntent(mnt, mnttabname);
# ifdef MNTTAB_OPT_DEV
if (xopts) {
XFREE(mnt->mnt_opts);
mnt->mnt_opts = xopts;
}
# endif /* MNTTAB_OPT_DEV */
#endif /* MOUNT_TABLE_ON_FILE */
out:
XFREE(mnt_dir);
return error;
}
static int
ufs_fumount(mntfs *mf)
{
return umount_fs(mf->mf_mount);
}