Ejemplo n.º 1
0
/**
 * mnt_context_finalize_umount:
 * @cxt: context
 *
 * Mtab update, etc. Unnecessary for mnt_context_umount(), but should be called
 * after mnt_context_do_umount(). See also mnt_context_set_syscall_status().
 *
 * Returns: negative number on error, 0 on success.
 */
int mnt_context_finalize_umount(struct libmnt_context *cxt)
{
	int rc;

	assert(cxt);
	assert(cxt->fs);
	assert((cxt->flags & MNT_FL_PREPARED));
	assert((cxt->flags & MNT_FL_MOUNTFLAGS_MERGED));

	rc = mnt_context_prepare_update(cxt);
	if (!rc)
		rc = mnt_context_update_tabs(cxt);;
	return rc;
}
Ejemplo n.º 2
0
/**
 * mnt_context_umount:
 * @cxt: umount context
 *
 * High-level, umounts filesystem by umount(2) or fork()+exec(/sbin/umount.type).
 *
 * This is similar to:
 *
 *	mnt_context_prepare_umount(cxt);
 *	mnt_context_do_umount(cxt);
 *	mnt_context_finalize_umount(cxt);
 *
 * See also mnt_context_disable_helpers().
 *
 * WARNING: non-zero return code does not mean that umount(2) syscall or
 *          umount.type helper wasn't successfully called.
 *
 *          Check mnt_context_get_status() after error!
 *
 * Returns: 0 on success;
 *         >0 in case of umount(2) error (returns syscall errno),
 *         <0 in case of other errors.
 */
int mnt_context_umount(struct libmnt_context *cxt)
{
	int rc;

	assert(cxt);
	assert(cxt->fs);
	assert(cxt->helper_exec_status == 1);
	assert(cxt->syscall_status == 1);

	DBG(CXT, mnt_debug_h(cxt, "umount: %s", mnt_context_get_target(cxt)));

	rc = mnt_context_prepare_umount(cxt);
	if (!rc)
		rc = mnt_context_prepare_update(cxt);
	if (!rc)
		rc = mnt_context_do_umount(cxt);
	if (!rc)
		rc = mnt_context_update_tabs(cxt);
	return rc;
}
Ejemplo n.º 3
0
/**
 * mnt_context_mount:
 * @cxt: mount context
 *
 * High-level, mounts filesystem by mount(2) or fork()+exec(/sbin/mount.type).
 *
 * This is similar to:
 *
 *	mnt_context_prepare_mount(cxt);
 *	mnt_context_do_mount(cxt);
 *	mnt_context_finalize_mount(cxt);
 *
 * See also mnt_context_disable_helpers().
 *
 * Note that this function could be called only once. If you want to mount with
 * different setting than you have to call mnt_reset_context(). It's NOT enough
 * to call mnt_context_reset_status() if you want call this function more than
 * once, whole context has to be reseted.
 *
 * WARNING: non-zero return code does not mean that mount(2) syscall or
 *          mount.type helper wasn't successfully called.
 *
 *          Check mnt_context_get_status() after error!
 *
 * Returns: 0 on success;
 *         >0 in case of mount(2) error (returns syscall errno),
 *         <0 in case of other errors.
 */
int mnt_context_mount(struct libmnt_context *cxt)
{
	int rc;

	assert(cxt);
	assert(cxt->fs);
	assert(cxt->helper_exec_status == 1);
	assert(cxt->syscall_status == 1);

	rc = mnt_context_prepare_mount(cxt);
	if (!rc)
		rc = mnt_context_prepare_update(cxt);
	if (!rc)
		rc = mnt_context_do_mount(cxt);

	/* TODO: if mtab update is expected then check if the
	 * target is really mounted read-write to avoid 'ro' in
	 * mtab and 'rw' in /proc/mounts.
	 */
	if (!rc)
		rc = mnt_context_update_tabs(cxt);
	return rc;
}