132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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#include <ctype.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <libgeom.h>
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#include <libzutil.h>
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/*
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* We don't strip/append partitions on FreeBSD.
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*/
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/*
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* Note: The caller must free the returned string.
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*/
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char *
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zfs_strip_partition(char *dev)
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{
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return (strdup(dev));
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}
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int
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zfs_append_partition(char *path, size_t max_len)
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{
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return (strnlen(path, max_len));
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}
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/*
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* Strip the path from a device name.
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* On FreeBSD we only want to remove "/dev/" from the beginning of
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* paths if present.
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*/
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char *
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zfs_strip_path(char *path)
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{
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if (strncmp(path, _PATH_DEV, sizeof (_PATH_DEV) - 1) == 0)
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return (path + sizeof (_PATH_DEV) - 1);
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else
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return (path);
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}
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char *
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zfs_get_underlying_path(const char *dev_name)
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{
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if (dev_name == NULL)
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return (NULL);
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return (realpath(dev_name, NULL));
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}
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boolean_t
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zfs_dev_is_whole_disk(const char *dev_name)
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{
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int fd;
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fd = g_open(dev_name, 0);
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if (fd >= 0) {
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g_close(fd);
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return (B_TRUE);
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}
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return (B_FALSE);
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}
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/*
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* Wait up to timeout_ms for udev to set up the device node. The device is
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* considered ready when libudev determines it has been initialized, all of
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* the device links have been verified to exist, and it has been allowed to
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* settle. At this point the device the device can be accessed reliably.
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* Depending on the complexity of the udev rules this process could take
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* several seconds.
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*/
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int
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zpool_label_disk_wait(const char *path, int timeout_ms)
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{
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int settle_ms = 50;
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long sleep_ms = 10;
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hrtime_t start, settle;
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struct stat64 statbuf;
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start = gethrtime();
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settle = 0;
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do {
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errno = 0;
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if ((stat64(path, &statbuf) == 0) && (errno == 0)) {
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if (settle == 0)
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settle = gethrtime();
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else if (NSEC2MSEC(gethrtime() - settle) >= settle_ms)
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return (0);
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} else if (errno != ENOENT) {
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return (errno);
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}
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usleep(sleep_ms * MILLISEC);
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} while (NSEC2MSEC(gethrtime() - start) < timeout_ms);
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return (ENODEV);
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}
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/* ARGSUSED */
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boolean_t
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is_mpath_whole_disk(const char *path)
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{
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return (B_FALSE);
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}
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