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Diffstat (limited to 'lib/libzfs/os/linux/libzfs_util_os.c')
-rw-r--r--lib/libzfs/os/linux/libzfs_util_os.c275
1 files changed, 0 insertions, 275 deletions
diff --git a/lib/libzfs/os/linux/libzfs_util_os.c b/lib/libzfs/os/linux/libzfs_util_os.c
deleted file mode 100644
index 55dfdf3723bd..000000000000
--- a/lib/libzfs/os/linux/libzfs_util_os.c
+++ /dev/null
@@ -1,275 +0,0 @@
-// SPDX-License-Identifier: CDDL-1.0
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or https://opensource.org/licenses/CDDL-1.0.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright (c) 2021 Klara, Inc.
- */
-
-#include <alloca.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <libintl.h>
-#include <math.h>
-#include <poll.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <strings.h>
-#include <sys/inotify.h>
-#include <sys/mntent.h>
-#include <sys/mnttab.h>
-#include <sys/stat.h>
-#include <sys/timerfd.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#include <libzfs.h>
-#include <libzfs_core.h>
-
-#include "../../libzfs_impl.h"
-#include "zfs_prop.h"
-#include <libzutil.h>
-#include <sys/zfs_sysfs.h>
-
-#define ZDIFF_SHARESDIR "/.zfs/shares/"
-
-const char *
-libzfs_error_init(int error)
-{
- switch (error) {
- case ENXIO:
- return (dgettext(TEXT_DOMAIN, "The ZFS modules are not "
- "loaded.\nTry running 'modprobe zfs' as root "
- "to load them."));
- case ENOENT:
- return (dgettext(TEXT_DOMAIN, "/dev/zfs and /proc/self/mounts "
- "are required.\nTry running 'udevadm trigger' and 'mount "
- "-t proc proc /proc' as root."));
- case ENOEXEC:
- return (dgettext(TEXT_DOMAIN, "The ZFS modules cannot be "
- "auto-loaded.\nTry running 'modprobe zfs' as "
- "root to manually load them."));
- case EACCES:
- return (dgettext(TEXT_DOMAIN, "Permission denied the "
- "ZFS utilities must be run as root."));
- default:
- return (dgettext(TEXT_DOMAIN, "Failed to initialize the "
- "libzfs library."));
- }
-}
-
-/*
- * zfs(4) is loaded by udev if there's a fstype=zfs device present,
- * but if there isn't, load them automatically;
- * always wait for ZFS_DEV to appear via udev.
- *
- * Environment variables:
- * - ZFS_MODULE_TIMEOUT="<seconds>" - Seconds to wait for ZFS_DEV,
- * defaults to 10, max. 10 min.
- */
-int
-libzfs_load_module(void)
-{
- if (access(ZFS_DEV, F_OK) == 0)
- return (0);
-
- if (access(ZFS_SYSFS_DIR, F_OK) != 0) {
- char *argv[] = {(char *)"modprobe", (char *)"zfs", NULL};
- if (libzfs_run_process("modprobe", argv, 0))
- return (ENOEXEC);
-
- if (access(ZFS_SYSFS_DIR, F_OK) != 0)
- return (ENXIO);
- }
-
- const char *timeout_str = getenv("ZFS_MODULE_TIMEOUT");
- int seconds = 10;
- if (timeout_str)
- seconds = MIN(strtol(timeout_str, NULL, 0), 600);
- struct itimerspec timeout = {.it_value.tv_sec = MAX(seconds, 0)};
-
- int ino = inotify_init1(IN_CLOEXEC);
- if (ino == -1)
- return (ENOENT);
- inotify_add_watch(ino, ZFS_DEVDIR, IN_CREATE);
-
- if (access(ZFS_DEV, F_OK) == 0) {
- close(ino);
- return (0);
- } else if (seconds == 0) {
- close(ino);
- return (ENOENT);
- }
-
- size_t evsz = sizeof (struct inotify_event) + NAME_MAX + 1;
- struct inotify_event *ev = alloca(evsz);
-
- int tout = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
- if (tout == -1) {
- close(ino);
- return (ENOENT);
- }
- timerfd_settime(tout, 0, &timeout, NULL);
-
- int ret = ENOENT;
- struct pollfd pfds[] = {
- {.fd = ino, .events = POLLIN},
- {.fd = tout, .events = POLLIN},
- };
- while (poll(pfds, ARRAY_SIZE(pfds), -1) != -1) {
- if (pfds[0].revents & POLLIN) {
- verify(read(ino, ev, evsz) >
- sizeof (struct inotify_event));
- if (strncmp(ev->name, &ZFS_DEV[sizeof (ZFS_DEVDIR)],
- ev->len) == 0) {
- ret = 0;
- break;
- }
- }
- if (pfds[1].revents & POLLIN)
- break;
- }
- close(tout);
- close(ino);
- return (ret);
-}
-
-int
-find_shares_object(differ_info_t *di)
-{
- char fullpath[MAXPATHLEN];
- struct stat64 sb = { 0 };
-
- (void) strlcpy(fullpath, di->dsmnt, MAXPATHLEN);
- (void) strlcat(fullpath, ZDIFF_SHARESDIR, MAXPATHLEN);
-
- if (stat64(fullpath, &sb) != 0) {
- (void) snprintf(di->errbuf, sizeof (di->errbuf),
- dgettext(TEXT_DOMAIN, "Cannot stat %s"), fullpath);
- return (zfs_error(di->zhp->zfs_hdl, EZFS_DIFF, di->errbuf));
- }
-
- di->shares = (uint64_t)sb.st_ino;
- return (0);
-}
-
-int
-zfs_destroy_snaps_nvl_os(libzfs_handle_t *hdl, nvlist_t *snaps)
-{
- (void) hdl, (void) snaps;
- return (0);
-}
-
-/*
- * Return allocated loaded module version, or NULL on error (with errno set)
- */
-char *
-zfs_version_kernel(void)
-{
- FILE *f = fopen(ZFS_SYSFS_DIR "/version", "re");
- if (f == NULL)
- return (NULL);
-
- char *ret = NULL;
- size_t l;
- ssize_t read;
- if ((read = getline(&ret, &l, f)) == -1) {
- int err = errno;
- fclose(f);
- errno = err;
- return (NULL);
- }
-
- fclose(f);
- if (ret[read - 1] == '\n')
- ret[read - 1] = '\0';
- return (ret);
-}
-
-/*
- * Add or delete the given filesystem to/from the given user namespace.
- */
-int
-zfs_userns(zfs_handle_t *zhp, const char *nspath, int attach)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- zfs_cmd_t zc = {"\0"};
- char errbuf[1024];
- unsigned long cmd;
- int ret;
-
- if (attach) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot add '%s' to namespace"),
- zhp->zfs_name);
- } else {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot remove '%s' from namespace"),
- zhp->zfs_name);
- }
-
- switch (zhp->zfs_type) {
- case ZFS_TYPE_VOLUME:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "volumes can not be namespaced"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case ZFS_TYPE_SNAPSHOT:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "snapshots can not be namespaced"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case ZFS_TYPE_BOOKMARK:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "bookmarks can not be namespaced"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case ZFS_TYPE_VDEV:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "vdevs can not be namespaced"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case ZFS_TYPE_INVALID:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid zfs_type_t: ZFS_TYPE_INVALID"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case ZFS_TYPE_POOL:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pools can not be namespaced"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case ZFS_TYPE_FILESYSTEM:
- break;
- }
- assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM);
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- zc.zc_objset_type = DMU_OST_ZFS;
- zc.zc_cleanup_fd = open(nspath, O_RDONLY);
- if (zc.zc_cleanup_fd < 0) {
- return (zfs_error(hdl, EZFS_NOT_USER_NAMESPACE, errbuf));
- }
-
- cmd = attach ? ZFS_IOC_USERNS_ATTACH : ZFS_IOC_USERNS_DETACH;
- if ((ret = zfs_ioctl(hdl, cmd, &zc)) != 0)
- zfs_standard_error(hdl, errno, errbuf);
-
- (void) close(zc.zc_cleanup_fd);
-
- return (ret);
-}