-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
- * Copyright (c) 2012 Whamcloud, Inc.
+ *
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif /* HAVE_CONFIG_H */
+#include <inttypes.h>
+#include <limits.h>
+#include <mntent.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
+#include <unistd.h>
#include <config.h>
-#include <lustre_disk.h>
-#include <lustre_ver.h>
+#include <linux/lustre/lustre_ver.h>
+#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/utsname.h>
+#include <linux/loop.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <dlfcn.h>
+#include <linux/lustre/lustre_cfg.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/xattr.h>
+#include <libmount/libmount.h>
+
+#ifdef HAVE_GSS
+#ifdef HAVE_LIBKEYUTILS
+#include <keyutils.h>
+#endif
+#include <lustre/utils/gss/sk_utils.h>
+#endif
-extern char *progname;
-extern int verbose;
+#include "mount_utils.h"
#define vprint(fmt, arg...) if (verbose > 0) printf(fmt, ##arg)
#define verrprint(fmt, arg...) if (verbose >= 0) fprintf(stderr, fmt, ##arg)
+#ifdef HAVE_SERVER_SUPPORT
+static struct module_backfs_ops *backfs_ops[LDD_MT_LAST];
+#endif
+
void fatal(void)
{
- verbose = 0;
- fprintf(stderr, "\n%s FATAL: ", progname);
+ verbose = 0;
+ fprintf(stderr, "\n%s FATAL: ", progname);
}
int run_command(char *cmd, int cmdsz)
{
- char log[] = "/tmp/run_command_logXXXXXX";
- int fd = -1, rc;
-
- if ((cmdsz - strlen(cmd)) < 6) {
- fatal();
- fprintf(stderr, "Command buffer overflow: %.*s...\n",
- cmdsz, cmd);
- return ENOMEM;
- }
-
- if (verbose > 1) {
- printf("cmd: %s\n", cmd);
- } else {
- if ((fd = mkstemp(log)) >= 0) {
- close(fd);
- strcat(cmd, " >");
- strcat(cmd, log);
- }
- }
- strcat(cmd, " 2>&1");
-
- /* Can't use popen because we need the rv of the command */
- rc = system(cmd);
- if (rc && (fd >= 0)) {
- char buf[128];
- FILE *fp;
- fp = fopen(log, "r");
- if (fp) {
- while (fgets(buf, sizeof(buf), fp) != NULL) {
- printf(" %s", buf);
- }
- fclose(fp);
- }
- }
- if (fd >= 0)
- remove(log);
- return rc;
-}
-
-int get_mountdata(char *dev, struct lustre_disk_data *mo_ldd)
-{
-
- char tmpdir[] = "/tmp/lustre_tmp.XXXXXX";
- char cmd[256];
- char filepnm[128];
- FILE *filep;
- int ret = 0;
- int ret2 = 0;
- int cmdsz = sizeof(cmd);
-
- /* Make a temporary directory to hold Lustre data files. */
- if (!mkdtemp(tmpdir)) {
- verrprint("%s: Can't create temporary directory %s: %s\n",
- progname, tmpdir, strerror(errno));
- return errno;
- }
-
- snprintf(cmd, cmdsz, "%s -c -R 'dump /%s %s/mountdata' %s",
- DEBUGFS, MOUNT_DATA_FILE, tmpdir, dev);
-
- ret = run_command(cmd, cmdsz);
- if (ret) {
- verrprint("%s: Unable to dump %s dir (%d)\n",
- progname, MOUNT_CONFIGS_DIR, ret);
- goto out_rmdir;
- }
-
- sprintf(filepnm, "%s/mountdata", tmpdir);
- filep = fopen(filepnm, "r");
- if (filep) {
- size_t num_read;
- vprint("Reading %s\n", MOUNT_DATA_FILE);
- num_read = fread(mo_ldd, sizeof(*mo_ldd), 1, filep);
- if (num_read < 1 && ferror(filep)) {
- fprintf(stderr, "%s: Unable to read from file (%s): %s\n",
- progname, filepnm, strerror(errno));
- goto out_close;
- }
- } else {
- verrprint("%s: Unable to read %d.%d config %s.\n",
- progname, LUSTRE_MAJOR, LUSTRE_MINOR, filepnm);
- ret = 1;
- goto out_rmdir;
- }
-
-out_close:
- fclose(filep);
-
-out_rmdir:
- snprintf(cmd, cmdsz, "rm -rf %s", tmpdir);
- ret2 = run_command(cmd, cmdsz);
- if (ret2) {
- verrprint("Failed to remove temp dir %s (%d)\n", tmpdir, ret2);
- /* failure return from run_command() is more important
- * than the failure to remove a dir */
- if (!ret)
- ret = ret2;
- }
-
- return ret;
+ char log[] = "/tmp/run_command_logXXXXXX";
+ int fd = -1, rc;
+
+ if ((cmdsz - strlen(cmd)) < 6) {
+ fatal();
+ fprintf(stderr, "Command buffer overflow: %.*s...\n",
+ cmdsz, cmd);
+ return ENOMEM;
+ }
+
+ if (verbose > 1) {
+ printf("cmd: %s\n", cmd);
+ } else {
+ if ((fd = mkstemp(log)) >= 0) {
+ close(fd);
+ strcat(cmd, " >");
+ strcat(cmd, log);
+ }
+ }
+ strcat(cmd, " 2>&1");
+
+ /* Can't use popen because we need the rv of the command */
+ rc = system(cmd);
+ if (rc && (fd >= 0)) {
+ char buf[128];
+ FILE *fp;
+
+ fp = fopen(log, "r");
+ if (fp) {
+ while (fgets(buf, sizeof(buf), fp))
+ printf(" %s", buf);
+ fclose(fp);
+ }
+ }
+ if (fd >= 0)
+ remove(log);
+ return rc;
+}
+
+#ifdef HAVE_SERVER_SUPPORT
+int add_param(char *buf, char *key, char *val)
+{
+ int end = sizeof(((struct lustre_disk_data *)0)->ldd_params);
+ int start = strlen(buf);
+ int keylen = 0;
+
+ if (key)
+ keylen = strlen(key);
+ if (start + 1 + keylen + strlen(val) >= end) {
+ fprintf(stderr, "%s: params are too long-\n%s %s%s\n",
+ progname, buf, key ? key : "", val);
+ return 1;
+ }
+
+ sprintf(buf + start, " %s%s", key ? key : "", val);
+ return 0;
+}
+
+int get_param(char *buf, char *key, char **val)
+{
+ int i, key_len = strlen(key);
+ char *ptr;
+
+ ptr = strstr(buf, key);
+ if (ptr) {
+ *val = strdup(ptr + key_len);
+ if (!(*val))
+ return ENOMEM;
+
+ for (i = 0; i < strlen(*val); i++)
+ if (((*val)[i] == ' ') || ((*val)[i] == '\0'))
+ break;
+
+ (*val)[i] = '\0';
+ return 0;
+ }
+
+ return ENOENT;
+}
+
+int append_param(char *buf, char *key, char *val, char sep)
+{
+ int key_len, i, offset, old_val_len;
+ char *ptr = NULL, str[1024];
+
+ if (key)
+ ptr = strstr(buf, key);
+
+ /* key doesn't exist yet, so just add it */
+ if (!ptr)
+ return add_param(buf, key, val);
+
+ key_len = strlen(key);
+
+ /* Copy previous values to str */
+ for (i = 0; i < sizeof(str); ++i) {
+ if ((ptr[i + key_len] == ' ') || (ptr[i + key_len] == '\0'))
+ break;
+ str[i] = ptr[i + key_len];
+ }
+ if (i == sizeof(str))
+ return E2BIG;
+ old_val_len = i;
+
+ offset = old_val_len + key_len;
+
+ /* Move rest of buf to overwrite previous key and value */
+ for (i = 0; ptr[i + offset] != '\0'; ++i)
+ ptr[i] = ptr[i + offset];
+
+ ptr[i] = '\0';
+
+ snprintf(str + old_val_len, sizeof(str) - old_val_len,
+ "%c%s", sep, val);
+
+ return add_param(buf, key, str);
+}
+#endif
+
+char *strscat(char *dst, char *src, int buflen)
+{
+ dst[buflen - 1] = 0;
+ if (strlen(dst) + strlen(src) >= buflen) {
+ fprintf(stderr,
+ "string buffer overflow (max %d): '%s' + '%s'\n",
+ buflen, dst, src);
+ exit(EOVERFLOW);
+ }
+ return strcat(dst, src);
+}
+
+char *strscpy(char *dst, char *src, int buflen)
+{
+ dst[0] = 0;
+ return strscat(dst, src, buflen);
+}
+
+int check_mtab_entry(char *spec1, char *spec2, char *mtpt, char *type)
+{
+ FILE *fp;
+ struct mntent *mnt;
+
+ fp = setmntent(MOUNTED, "r");
+ if (!fp)
+ return 0;
+
+ while ((mnt = getmntent(fp)) != NULL) {
+ if ((strcmp(mnt->mnt_fsname, spec1) == 0 ||
+ strcmp(mnt->mnt_fsname, spec2) == 0) &&
+ (!mtpt || strcmp(mnt->mnt_dir, mtpt) == 0) &&
+ (!type || strcmp(mnt->mnt_type, type) == 0)) {
+ endmntent(fp);
+ return EEXIST;
+ }
+ }
+ endmntent(fp);
+
+ return 0;
+}
+
+#include <sys/vfs.h>
+#include <linux/magic.h>
+
+static int mtab_is_proc(const char *mtab)
+{
+ struct statfs s;
+
+ if (statfs(mtab, &s) < 0)
+ return 0;
+
+ return (s.f_type == PROC_SUPER_MAGIC);
+}
+
+/*
+ * The libmount is part of util-linux since 2.18.
+ * We use it to update utab to avoid umount would
+ * blocked in some rare case.
+ */
+int update_utab_entry(struct mount_opts *mop)
+{
+ struct libmnt_fs *fs = mnt_new_fs();
+ struct libmnt_update *upd;
+ int rc;
+
+ mnt_fs_set_source(fs, mop->mo_source);
+ mnt_fs_set_target(fs, mop->mo_target);
+ mnt_fs_set_fstype(fs, "lustre");
+ mnt_fs_set_attributes(fs, "lustre");
+
+ upd = mnt_new_update();
+ if (!upd)
+ return -ENOMEM;
+
+ rc = mnt_update_set_fs(upd, mop->mo_nomtab ? MS_REMOUNT : 0, NULL, fs);
+ if (rc == 1) /* update is unnecessary */
+ rc = 0;
+ if (rc) {
+ fprintf(stderr,
+ "error: failed to save utab entry: rc = %d\n", rc);
+ } else {
+ rc = mnt_update_table(upd, NULL);
+ }
+
+ mnt_free_update(upd);
+ mnt_free_fs(fs);
+
+ return rc;
+}
+
+int update_mtab_entry(char *spec, char *mtpt, char *type, char *opts,
+ int flags, int freq, int pass)
+{
+ FILE *fp;
+ struct mntent mnt;
+ int rc = 0;
+
+ /* Don't update mtab if it is linked to any file in /proc direcotry.*/
+ if (mtab_is_proc(MOUNTED))
+ return 0;
+
+ mnt.mnt_fsname = spec;
+ mnt.mnt_dir = mtpt;
+ mnt.mnt_type = type;
+ mnt.mnt_opts = opts ? opts : "";
+ mnt.mnt_freq = freq;
+ mnt.mnt_passno = pass;
+
+ fp = setmntent(MOUNTED, "a+");
+ if (!fp) {
+ fprintf(stderr, "%s: setmntent(%s): %s\n",
+ progname, MOUNTED, strerror(errno));
+ rc = 16;
+ } else {
+ if ((addmntent(fp, &mnt)) == 1) {
+ fprintf(stderr, "%s: addmntent: %s\n",
+ progname, strerror(errno));
+ rc = 16;
+ }
+ endmntent(fp);
+ }
+
+ return rc;
+}
+
+/* Search for opt in mntlist, returning true if found.
+ */
+static int in_mntlist(char *opt, char *mntlist)
+{
+ char *ml, *mlp, *item, *ctx = NULL;
+
+ if (!(ml = strdup(mntlist))) {
+ fprintf(stderr, "%s: out of memory\n", progname);
+ exit(1);
+ }
+ mlp = ml;
+ while ((item = strtok_r(mlp, ",", &ctx))) {
+ if (!strcmp(opt, item))
+ break;
+ mlp = NULL;
+ }
+ free(ml);
+ return (item != NULL);
+}
+
+/* Issue a message on stderr for every item in wanted_mountopts that is not
+ * present in mountopts. The justwarn boolean toggles between error and
+ * warning message. Return an error count.
+ */
+int check_mountfsoptions(char *mountopts, char *wanted_mountopts)
+{
+ char *ml, *mlp, *item, *ctx = NULL;
+ int errors = 0;
+
+ if (!(ml = strdup(wanted_mountopts))) {
+ fprintf(stderr, "%s: out of memory\n", progname);
+ exit(1);
+ }
+ mlp = ml;
+ while ((item = strtok_r(mlp, ",", &ctx))) {
+ if (!in_mntlist(item, mountopts)) {
+ fprintf(stderr, "%s: Error: mandatory mount option"
+ " '%s' is missing\n", progname, item);
+ errors++;
+ }
+ mlp = NULL;
+ }
+ free(ml);
+ return errors;
+}
+
+/* Trim embedded white space, leading and trailing commas from string s.
+ */
+void trim_mountfsoptions(char *s)
+{
+ char *p;
+
+ for (p = s; *p; ) {
+ if (isspace(*p)) {
+ memmove(p, p + 1, strlen(p + 1) + 1);
+ continue;
+ }
+ p++;
+ }
+
+ while (s[0] == ',')
+ memmove(&s[0], &s[1], strlen(&s[1]) + 1);
+
+ p = s + strlen(s) - 1;
+ while (p >= s && *p == ',')
+ *p-- = '\0';
+}
+
+#ifdef HAVE_SERVER_SUPPORT
+/* Setup a file in the first unused loop_device */
+int loop_setup(struct mkfs_opts *mop)
+{
+ char loop_base[20];
+ char l_device[64];
+ int i, ret = 0;
+
+ /* Figure out the loop device names */
+ if (!access("/dev/loop0", F_OK | R_OK) ||
+ !access("/dev/loop-control", F_OK | R_OK)) {
+ strcpy(loop_base, "/dev/loop\0");
+ } else if (!access("/dev/loop/0", F_OK | R_OK)) {
+ strcpy(loop_base, "/dev/loop/\0");
+ } else {
+ fprintf(stderr, "%s: can't access loop devices\n", progname);
+ return EACCES;
+ }
+
+ /* Find unused loop device */
+ for (i = 0; i < MAX_LOOP_DEVICES; i++) {
+ char cmd[PATH_MAX];
+ int cmdsz = sizeof(cmd);
+
+ ret = open("/dev/loop-control", O_RDWR);
+ if (ret < 0) {
+ fprintf(stderr, "%s: can't access loop control\n",
+ progname);
+ return EACCES;
+ }
+ /* find or allocate a free loop device to use */
+ i = ioctl(ret, LOOP_CTL_GET_FREE);
+ close(ret);
+ if (i < 0) {
+ fprintf(stderr, "%s: access loop control error\n",
+ progname);
+ return EACCES;
+ }
+ sprintf(l_device, "%s%d", loop_base, i);
+
+ snprintf(cmd, cmdsz, "losetup %s > /dev/null 2>&1", l_device);
+ ret = system(cmd);
+
+ /* losetup gets 1 (ret=256) for non-set-up device */
+ if (ret) {
+ /* Set up a loopback device to our file */
+ snprintf(cmd, cmdsz, "losetup %s %s", l_device,
+ mop->mo_device);
+ ret = run_command(cmd, cmdsz);
+ if (ret == 256)
+ /*
+ * someone else picked up this loop device
+ * behind our back
+ */
+ continue;
+ if (ret) {
+ fprintf(stderr, "%s: error %d on losetup: %s\n",
+ progname, ret,
+ ret >= 0 ? strerror(ret) : "");
+ return ret;
+ }
+ strscpy(mop->mo_loopdev, l_device,
+ sizeof(mop->mo_loopdev));
+ return ret;
+ }
+ }
+
+ fprintf(stderr, "%s: out of loop devices!\n", progname);
+ return EMFILE;
+}
+
+int loop_cleanup(struct mkfs_opts *mop)
+{
+ char cmd[150];
+ int ret = 0;
+
+ if ((mop->mo_flags & MO_IS_LOOP) && *mop->mo_loopdev) {
+ int tries;
+
+ sprintf(cmd, "losetup -d %s", mop->mo_loopdev);
+ for (tries = 0; tries < 3; tries++) {
+ ret = run_command(cmd, sizeof(cmd));
+ if (ret == 0)
+ break;
+ sleep(1);
+ }
+ }
+
+ if (ret != 0)
+ fprintf(stderr, "cannot cleanup %s: rc = %d\n",
+ mop->mo_loopdev, ret);
+ return ret;
+}
+
+int loop_format(struct mkfs_opts *mop)
+{
+ int fd;
+
+ if (mop->mo_device_kb == 0) {
+ fatal();
+ fprintf(stderr,
+ "loop device requires a --device-size= param\n");
+ return EINVAL;
+ }
+
+ fd = creat(mop->mo_device, 0600);
+ if (fd < 0) {
+ fatal();
+ fprintf(stderr, "%s: Unable to create backing store: %s\n",
+ progname, strerror(errno));
+ return errno;
+ }
+
+ if (ftruncate(fd, mop->mo_device_kb * 1024) != 0) {
+ close(fd);
+ fatal();
+ fprintf(stderr, "%s: Unable to truncate backing store: %s\n",
+ progname, strerror(errno));
+ return errno;
+ }
+
+ close(fd);
+ return 0;
+}
+
+#ifdef PLUGIN_DIR
+#define DLSYM(prefix, sym, func) \
+ do { \
+ char _fname[PATH_MAX]; \
+ snprintf(_fname, sizeof(_fname), "%s_%s", prefix, #func); \
+ sym->func = (typeof(sym->func))dlsym(sym->dl_handle, _fname); \
+ } while (0)
+#endif /* PLUGIN_DIR */
+
+/**
+ * Load plugin for a given mount_type from ${pkglibdir}/mount_osd_FSTYPE.so and
+ * return struct of function pointers (will be freed in unloack_backfs_module).
+ *
+ * \param[in] mount_type Mount type to load module for.
+ * \retval Value of backfs_ops struct
+ * \retval NULL if no module exists
+ */
+struct module_backfs_ops *load_backfs_module(enum ldd_mount_type mount_type)
+{
+ struct module_backfs_ops *ops;
+#ifdef PLUGIN_DIR
+ char *error, filename[PATH_MAX], fsname[512], *name;
+ void *handle;
+
+ /*
+ * This deals with duplicate ldd_mount_types resolving to same OSD layer
+ * plugin (e.g. ext3/ldiskfs/ldiskfs2 all being ldiskfs)
+ */
+ strncpy(fsname, mt_type(mount_type), sizeof(fsname));
+ name = fsname + sizeof("osd-") - 1;
+
+ /* change osd- to osd_ */
+ fsname[sizeof("osd-") - 2] = '_';
+
+ snprintf(filename, sizeof(filename), PLUGIN_DIR"/mount_%s.so", fsname);
+
+ handle = dlopen(filename, RTLD_LAZY);
+
+ /*
+ * Check for $LUSTRE environment variable from test-framework.
+ * This allows using locally built modules to be used.
+ */
+ if (!handle) {
+ char *dirname;
+
+ dirname = getenv("LUSTRE");
+ if (dirname) {
+ snprintf(filename, sizeof(filename),
+ "%s/utils/mount_%s.so",
+ dirname, fsname);
+ handle = dlopen(filename, RTLD_LAZY);
+ }
+ }
+
+ /* Do not clutter up console with missing types */
+ if (!handle)
+ return NULL;
+
+ ops = malloc(sizeof(*ops));
+ if (!ops) {
+ dlclose(handle);
+ return NULL;
+ }
+
+ ops->dl_handle = handle;
+ dlerror(); /* Clear any existing error */
+
+ DLSYM(name, ops, init);
+ DLSYM(name, ops, fini);
+ DLSYM(name, ops, read_ldd);
+ DLSYM(name, ops, write_ldd);
+ DLSYM(name, ops, erase_ldd);
+ DLSYM(name, ops, print_ldd_params);
+ DLSYM(name, ops, is_lustre);
+ DLSYM(name, ops, make_lustre);
+ DLSYM(name, ops, prepare_lustre);
+ DLSYM(name, ops, tune_lustre);
+ DLSYM(name, ops, label_lustre);
+ DLSYM(name, ops, rename_fsname);
+ DLSYM(name, ops, enable_quota);
+
+ error = dlerror();
+ if (error) {
+ fatal();
+ fprintf(stderr, "%s\n", error);
+ dlclose(handle);
+ free(ops);
+ return NULL;
+ }
+
+ /* optional methods */
+ DLSYM(name, ops, fix_mountopts);
+#else
+ switch (mount_type) {
+#ifdef HAVE_LDISKFS_OSD
+ case LDD_MT_LDISKFS:
+ ops = &ldiskfs_ops;
+ break;
+#endif /* HAVE_LDISKFS_OSD */
+#ifdef HAVE_ZFS_OSD
+ case LDD_MT_ZFS:
+ ops = &zfs_ops;
+ break;
+#endif /* HAVE_ZFS_OSD */
+ default:
+ ops = NULL;
+ break;
+ }
+#endif
+ return ops;
+}
+
+/**
+ * Unload plugin and free backfs_ops structure. Must be called the same number
+ * of times as load_backfs_module is.
+ */
+void unload_backfs_module(struct module_backfs_ops *ops)
+{
+#ifdef PLUGIN_DIR
+ if (!ops)
+ return;
+
+ dlclose(ops->dl_handle);
+ free(ops);
+#endif
+}
+
+/* Return true if backfs_ops has operations for the given mount_type. */
+int backfs_mount_type_okay(enum ldd_mount_type mount_type)
+{
+ if (mount_type >= LDD_MT_LAST || mount_type < 0) {
+ fatal();
+ fprintf(stderr, "fs type out of range %d\n", mount_type);
+ return 0;
+ }
+ if (!backfs_ops[mount_type]) {
+ fatal();
+ fprintf(stderr, "unhandled/unloaded fs type %d '%s'\n",
+ mount_type, mt_str(mount_type));
+ return 0;
+ }
+ return 1;
+}
+
+/* Write the server config files */
+int osd_write_ldd(struct mkfs_opts *mop)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->write_ldd(mop);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+/* Read the server config files */
+int osd_read_ldd(char *dev, struct lustre_disk_data *ldd)
+{
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->read_ldd(dev, ldd);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+/* Erase param from the server config files */
+int osd_erase_ldd(struct mkfs_opts *mop, char *param)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->erase_ldd(mop, param);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+/* Print ldd_params */
+void osd_print_ldd_params(struct mkfs_opts *mop)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ backfs_ops[ldd->ldd_mount_type]->print_ldd_params(mop);
+}
+
+/* Was this device formatted for Lustre */
+int osd_is_lustre(char *dev, unsigned int *mount_type)
+{
+ int i;
+
+ vprint("checking for existing Lustre data: ");
+
+ for (i = 0; i < LDD_MT_LAST; ++i) {
+ if (backfs_ops[i] &&
+ backfs_ops[i]->is_lustre(dev, mount_type)) {
+ vprint("found\n");
+ return 1;
+ }
+ }
+
+ vprint("not found\n");
+ return 0;
+}
+
+/* Build fs according to type */
+int osd_make_lustre(struct mkfs_opts *mop)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->make_lustre(mop);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+int osd_prepare_lustre(struct mkfs_opts *mop,
+ char *wanted_mountopts, size_t len)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->prepare_lustre(mop,
+ wanted_mountopts, len);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+int osd_fix_mountopts(struct mkfs_opts *mop, char *mountopts, size_t len)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+
+ if (!backfs_mount_type_okay(ldd->ldd_mount_type))
+ return EINVAL;
+
+ if (!backfs_ops[ldd->ldd_mount_type]->fix_mountopts)
+ return 0;
+
+ return backfs_ops[ldd->ldd_mount_type]->fix_mountopts(mop, mountopts,
+ len);
+}
+
+int osd_tune_lustre(char *dev, struct mount_opts *mop)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->tune_lustre(dev, mop);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+int osd_label_lustre(struct mount_opts *mop)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->label_lustre(mop);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+/* Rename filesystem fsname */
+int osd_rename_fsname(struct mkfs_opts *mop, const char *oldname)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->rename_fsname(mop,
+ oldname);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+/* Enable quota accounting */
+int osd_enable_quota(struct mkfs_opts *mop)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ int ret;
+
+ if (backfs_mount_type_okay(ldd->ldd_mount_type))
+ ret = backfs_ops[ldd->ldd_mount_type]->enable_quota(mop);
+ else
+ ret = EINVAL;
+
+ return ret;
+}
+
+int osd_init(void)
+{
+ int i, rc, ret = EINVAL;
+
+ for (i = 0; i < LDD_MT_LAST; ++i) {
+ rc = 0;
+ backfs_ops[i] = load_backfs_module(i);
+ if (backfs_ops[i]) {
+ rc = backfs_ops[i]->init();
+ if (rc != 0) {
+ backfs_ops[i]->fini();
+ unload_backfs_module(backfs_ops[i]);
+ backfs_ops[i] = NULL;
+ } else {
+ ret = 0;
+ }
+ }
+ }
+
+ return ret;
+}
+
+void osd_fini(void)
+{
+ int i;
+
+ for (i = 0; i < LDD_MT_LAST; ++i) {
+ if (backfs_ops[i]) {
+ backfs_ops[i]->fini();
+ unload_backfs_module(backfs_ops[i]);
+ backfs_ops[i] = NULL;
+ }
+ }
+}
+
+__u64 get_device_size(char *device)
+{
+ int ret, fd;
+ __u64 size = 0;
+
+ fd = open(device, O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "%s: cannot open %s: %s\n",
+ progname, device, strerror(errno));
+ return 0;
+ }
+
+#ifdef BLKGETSIZE64
+ /* size in bytes. bz5831 */
+ ret = ioctl(fd, BLKGETSIZE64, (void *)&size);
+#else
+ {
+ __u32 lsize = 0;
+ /* size in blocks */
+ ret = ioctl(fd, BLKGETSIZE, (void *)&lsize);
+ size = (__u64)lsize * 512;
+ }
+#endif
+ close(fd);
+ if (ret < 0) {
+ fprintf(stderr, "%s: size ioctl failed: %s\n",
+ progname, strerror(errno));
+ return 0;
+ }
+
+ vprint("device size = %juMB\n", (uintmax_t)(size >> 20));
+ /* return value in KB */
+ return size >> 10;
+}
+#endif
+
+int file_create(char *path, __u64 size)
+{
+ __u64 size_max;
+ int ret;
+ int fd;
+
+ /*
+ * Since "size" is in KB, the file offset it represents could overflow
+ * off_t.
+ */
+ size_max = (off_t)1 << (_FILE_OFFSET_BITS - 1 - 10);
+ if (size >= size_max) {
+ fprintf(stderr,
+ "%s: %ju KB: Backing store size must be smaller than %ju KB\n",
+ progname, (uintmax_t)size, (uintmax_t)size_max);
+ return EFBIG;
+ }
+
+ ret = access(path, F_OK);
+ if (ret == 0) {
+ ret = unlink(path);
+ if (ret != 0)
+ return errno;
+ }
+
+ fd = creat(path, 0600);
+ if (fd < 0) {
+ fatal();
+ fprintf(stderr, "%s: Unable to create backing store: %s\n",
+ progname, strerror(errno));
+ return errno;
+ }
+
+ ret = ftruncate(fd, size * 1024);
+ close(fd);
+ if (ret != 0) {
+ fatal();
+ fprintf(stderr, "%s: Unable to truncate backing store: %s\n",
+ progname, strerror(errno));
+ return errno;
+ }
+
+ return 0;
+}
+
+#ifdef HAVE_SERVER_SUPPORT
+struct lustre_cfg_entry {
+ struct list_head lce_list;
+ char lce_name[0];
+};
+
+static struct lustre_cfg_entry *lustre_cfg_entry_init(const char *name)
+{
+ struct lustre_cfg_entry *lce;
+ int len = strlen(name) + 1;
+
+ lce = malloc(sizeof(*lce) + len);
+ if (lce) {
+ INIT_LIST_HEAD(&lce->lce_list);
+ memcpy(lce->lce_name, name, len);
+ }
+
+ return lce;
+}
+
+static void lustre_cfg_entry_fini(struct lustre_cfg_entry *lce)
+{
+ free(lce);
+}
+
+int lustre_rename_fsname(struct mkfs_opts *mop, const char *mntpt,
+ const char *oldname)
+{
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ struct lr_server_data lsd;
+ char filepnm[132];
+ char cfg_dir[128];
+ DIR *dir = NULL;
+ struct dirent64 *dirent;
+ struct lustre_cfg_entry *lce;
+ struct list_head cfg_list;
+ int old_namelen = strlen(oldname);
+ int new_namelen = strlen(ldd->ldd_fsname);
+ int ret;
+ int fd;
+
+ INIT_LIST_HEAD(&cfg_list);
+
+ snprintf(filepnm, sizeof(filepnm), "%s/%s", mntpt, LAST_RCVD);
+ fd = open(filepnm, O_RDWR);
+ if (fd < 0) {
+ if (errno == ENOENT)
+ goto config;
+
+ if (errno != 0)
+ ret = errno;
+ else
+ ret = fd;
+ fprintf(stderr, "Unable to open %s: %s\n",
+ filepnm, strerror(ret));
+ return ret;
+ }
+
+ ret = read(fd, &lsd, sizeof(lsd));
+ if (ret != sizeof(lsd)) {
+ if (errno != 0)
+ ret = errno;
+ fprintf(stderr, "Unable to read %s: %s\n",
+ filepnm, strerror(ret));
+ close(fd);
+ return ret;
+ }
+
+ ret = lseek(fd, 0, SEEK_SET);
+ if (ret) {
+ if (errno != 0)
+ ret = errno;
+ fprintf(stderr, "Unable to lseek %s: %s\n",
+ filepnm, strerror(ret));
+ close(fd);
+ return ret;
+ }
+
+ /* replace fsname in lr_server_data::lsd_uuid. */
+ if (old_namelen > new_namelen)
+ memmove(lsd.lsd_uuid + new_namelen,
+ lsd.lsd_uuid + old_namelen,
+ sizeof(lsd.lsd_uuid) - old_namelen);
+ else if (old_namelen < new_namelen)
+ memmove(lsd.lsd_uuid + new_namelen,
+ lsd.lsd_uuid + old_namelen,
+ sizeof(lsd.lsd_uuid) - new_namelen);
+ memcpy(lsd.lsd_uuid, ldd->ldd_fsname, new_namelen);
+ ret = write(fd, &lsd, sizeof(lsd));
+ if (ret != sizeof(lsd)) {
+ if (errno != 0)
+ ret = errno;
+ fprintf(stderr, "Unable to write %s: %s\n",
+ filepnm, strerror(ret));
+ close(fd);
+ return ret;
+ }
+
+ close(fd);
+
+config:
+ snprintf(cfg_dir, sizeof(cfg_dir), "%s/%s", mntpt, MOUNT_CONFIGS_DIR);
+ dir = opendir(cfg_dir);
+ if (!dir) {
+ if (errno != 0)
+ ret = errno;
+ else
+ ret = EINVAL;
+ fprintf(stderr, "Unable to opendir %s: %s\n",
+ cfg_dir, strerror(ret));
+ return ret;
+ }
+
+ while ((dirent = readdir64(dir)) != NULL) {
+ char *ptr;
+
+ if (strlen(dirent->d_name) <= old_namelen)
+ continue;
+
+ ptr = strrchr(dirent->d_name, '-');
+ if (!ptr || (ptr - dirent->d_name) != old_namelen)
+ continue;
+
+ if (strncmp(dirent->d_name, oldname, old_namelen) != 0)
+ continue;
+
+ lce = lustre_cfg_entry_init(dirent->d_name);
+ if (!lce) {
+ if (errno != 0)
+ ret = errno;
+ else
+ ret = EINVAL;
+
+ fprintf(stderr, "Fail to init item for %s: %s\n",
+ dirent->d_name, strerror(ret));
+ goto out;
+ }
+
+ list_add(&lce->lce_list, &cfg_list);
+ }
+
+ closedir(dir);
+ dir = NULL;
+ ret = 0;
+
+ while (!list_empty(&cfg_list) && ret == 0) {
+ lce = list_entry(cfg_list.next, struct lustre_cfg_entry,
+ lce_list);
+ list_del(&lce->lce_list);
+ snprintf(filepnm, sizeof(filepnm), "%s/%s", cfg_dir,
+ lce->lce_name);
+ if (IS_MGS(ldd))
+ /*
+ * Store the new fsname in the XATTR_TARGET_RENAME EA.
+ * When the MGS start, it will scan config logs, and
+ * for the ones which have the XATTR_TARGET_RENAME EA,
+ * it will replace old fsname with the new fsname in
+ * the config log by some shared kernel level config
+ * logs {fork,erase} functionalities automatically.
+ */
+ ret = setxattr(filepnm, XATTR_TARGET_RENAME,
+ ldd->ldd_fsname,
+ strlen(ldd->ldd_fsname), 0);
+ else
+ ret = unlink(filepnm);
+
+ if (ret) {
+ if (errno != 0)
+ ret = errno;
+
+ fprintf(stderr, "Fail to %s %s: %s\n",
+ IS_MGS(ldd) ? "setxattr" : "unlink",
+ filepnm, strerror(ret));
+ }
+
+ lustre_cfg_entry_fini(lce);
+ }
+
+out:
+ if (dir)
+ closedir(dir);
+
+ while (!list_empty(&cfg_list)) {
+ lce = list_entry(cfg_list.next, struct lustre_cfg_entry,
+ lce_list);
+ list_del(&lce->lce_list);
+ lustre_cfg_entry_fini(lce);
+ }
+
+ return ret;
+}
+#endif /* HAVE_SERVER_SUPPORT */
+
+#ifdef HAVE_GSS
+#ifdef HAVE_OPENSSL_SSK
+int load_shared_keys(struct mount_opts *mop)
+{
+ DIR *dir;
+ struct dirent *dentry;
+ struct stat sbuf;
+ char fullpath[PATH_MAX];
+ char *path = mop->mo_skpath;
+ int rc;
+
+ /* init logging */
+ sk_init_logging(NULL, 1, 1);
+
+ rc = stat(path, &sbuf);
+ if (rc < 0) {
+ fprintf(stderr, "stat() failed for key %s: %s\n", path,
+ strerror(errno));
+ return -errno;
+ }
+
+ /* Load individual keys or a directory of them */
+ if (S_ISREG(sbuf.st_mode)) {
+ return sk_load_keyfile(path);
+ } else if (!S_ISDIR(sbuf.st_mode)) {
+ fprintf(stderr, "Invalid shared key path: %s\n", path);
+ return -ENOKEY;
+ }
+
+ dir = opendir(path);
+ if (!dir) {
+ fprintf(stderr, "Unable to open shared key directory: %s\n",
+ path);
+ return -ENOENT;
+ }
+
+ /*
+ * Loop through the files in the directory attempting to load them.
+ * Any issue with loading the keyfile is treated as an error although
+ * the loop continues until all files have been attempted. This will
+ * allow all errors be reported at once rather then requiring
+ * incremental corrections to fix each one and try again.
+ */
+ while ((dentry = readdir(dir)) != NULL) {
+ if (strcmp(".", dentry->d_name) == 0 ||
+ strcmp("..", dentry->d_name) == 0)
+ continue;
+
+ rc = snprintf(fullpath, PATH_MAX, "%s/%s", path,
+ dentry->d_name);
+ if (rc >= PATH_MAX) {
+ fprintf(stderr, "Path too long for %s/%s\n",
+ path, dentry->d_name);
+ rc = -ENAMETOOLONG;
+ continue;
+ }
+
+ rc = stat(fullpath, &sbuf);
+ if (rc < 0) {
+ fprintf(stderr, "Unable to stat %s: %s\n", fullpath,
+ strerror(errno));
+ rc = -errno;
+ continue;
+ }
+
+ if (!S_ISREG(sbuf.st_mode))
+ continue;
+
+ rc = sk_load_keyfile(fullpath);
+ if (rc)
+ fprintf(stderr, "Failed to load key %s\n", fullpath);
+ }
+ closedir(dir);
+
+ return rc;
}
+#endif /* HAVE_OPENSSL_SSK */
+#endif /* HAVE_GSS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff