*
* 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
+#include <getopt.h>
+#include <mntent.h>
+#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
-#include "obdctl.h"
-#include <lustre_ver.h>
-#include <glob.h>
+#include <sys/mount.h>
+#include <sys/param.h>
+#include <linux/lustre/lustre_ver.h>
#include <ctype.h>
#include <limits.h>
+#if defined(HAVE_LUSTRE_CRYPTO) && defined(HAVE_LIBKEYUTILS)
+#include <keyutils.h>
+#endif
+#include <linux/lnet/nidstr.h>
+#include <libcfs/util/string.h>
+
+#include "obdctl.h"
#include "mount_utils.h"
-#define MAX_HW_SECTORS_KB_PATH "queue/max_hw_sectors_kb"
-#define MAX_SECTORS_KB_PATH "queue/max_sectors_kb"
-#define STRIPE_CACHE_SIZE "md/stripe_cache_size"
+#ifdef HAVE_LIBMOUNT
+# define WITH_LIBMOUNT "(libmount)"
+#else
+# define WITH_LIBMOUNT ""
+#endif
+
#define MAX_RETRIES 99
-int verbose = 0;
-int md_stripe_cache_size = 16384;
-char *progname = NULL;
+int verbose;
+int version;
+char *progname;
void usage(FILE *out)
{
- fprintf(out, "%s v"LUSTRE_VERSION_STRING"\n", progname);
- fprintf(out, "\nThis mount helper should only be invoked via the "
- "mount (8) command,\ne.g. mount -t lustre dev dir\n\n");
- fprintf(out, "usage: %s [-fhnv] [-o <mntopt>] <device> <mountpt>\n",
- progname);
- fprintf(out,
- "\t<device>: the disk device, or for a client:\n"
- "\t\t<mgmtnid>[:<altmgtnid>...]:/<filesystem>-client\n"
- "\t<filesystem>: name of the Lustre filesystem (e.g. lustre1)\n"
- "\t<mountpt>: filesystem mountpoint (e.g. /mnt/lustre)\n"
- "\t-f|--fake: fake mount (updates /etc/mtab)\n"
- "\t-o force|--force: force mount even if already in /etc/mtab\n"
- "\t-h|--help: print this usage message\n"
- "\t-n|--nomtab: do not update /etc/mtab after mount\n"
- "\t-v|--verbose: print verbose config settings\n"
- "\t<mntopt>: one or more comma separated of:\n"
- "\t\t(no)flock,(no)user_xattr,(no)acl\n"
- "\t\tabort_recov: abort server recovery handling\n"
- "\t\tnosvc: only start MGC/MGS obds\n"
- "\t\tnomgs: only start target obds, using existing MGS\n"
- "\t\texclude=<ostname>[:<ostname>] : colon-separated list of "
- "inactive OSTs (e.g. lustre-OST0001)\n"
- "\t\tretry=<num>: number of times mount is retried by client\n"
- "\t\tmd_stripe_cache_size=<num>: set the raid stripe cache "
- "size for the underlying raid if present\n"
- );
- exit((out != stdout) ? EINVAL : 0);
+ fprintf(out,
+ "\nThis mount helper should only be invoked via the mount (8) command,\ne.g. mount -t lustre dev dir\n\n");
+ fprintf(out, "usage: %s [-fhnvV] [-o <srvopt>] <device> <mountpt>\n",
+ progname);
+ fprintf(out, "usage: %s [-fhnvV] [-o <cliopt>] <mgstarget> <mountpt>\n",
+ progname);
+ fprintf(out,
+ "\t<device>: the local disk device when mounting a server\n"
+ "\t<mgstarget>: the server MGS and filesystem for a client:\n"
+ "\t\t<mgsnid>[:<altmgsnid>...]:/<filesystem>[/<subdir>]\n"
+ "\t\t\t<mgsnid>: MGS LNet Node Identifier (e.g. mgs01@o2ib)\n"
+ "\t\t\t<filesystem>: Lustre filesystem name (e.g. lustre1)\n"
+ "\t\t\t<subdir>: subdirectory of the filesystem to mount\n"
+ "\t<mountpt>: filesystem mountpoint (e.g. /mnt/lustre)\n"
+ "\t-f|--fake: fake mount (only update /etc/mtab)\n"
+ "\t-o force|--force: force mount even if already in /etc/mtab\n"
+ "\t-h|--help: print this usage message\n"
+ "\t-n|--nomtab: do not update /etc/mtab after mount\n"
+ "\t-v|--verbose: print verbose config settings\n"
+ "\t-V|--version: output build version of the utility and exit\n"
+ "\tdefault options are marked below with '*'\n"
+ "\t\t(no)flock: disable* or enable POSIX flock support\n"
+ "\t\t(no)user_xattr: disable or enable* user xattr namespace\n"
+ "\t<srvopt>: one or more comma separated server options:\n"
+ "\t\t(no)acl: disable or enable* POSIX ACL support completely\n"
+ "\t\tabort_recov: abort server recovery handling\n"
+ "\t\tnosvc: only start MGC/MGS without starting MDS/OSS\n"
+ "\t\tnomgs: only start target MDS/OSS, using existing MGS\n"
+ "\t\tnoscrub: do NOT auto start OI scrub unless requested\n"
+ "\t\tskip_lfsck: do NOT auto resume paused/crashed LFSCK\n"
+ "\t\tmd_stripe_cache_size=<num>: set MD RAID device stripe cache size\n"
+ "\t<cliopt>: one or more comma separated client options:\n"
+ "\t\texclude=<ostname>[:<ostname>]: list of inactive OSTs (e.g. lustre-OST0001)\n"
+ "\t\tlocalflock: enable POSIX flock only on local client\n"
+ "\t\tretry=<num>: number of times mount is retried by client\n"
+#ifdef HAVE_GSS
+ "\t\tskpath=<file|directory>: path of keys to load into kernel keyring\n"
+#endif
+ "\t\t(no)user_fid2path: disable* or enable user $MOUNT/.lustre/fid access\n"
+ "\t\t(no)checksum: disable or enable* data checksums\n"
+ "\t\t(no)lruresize: disable or enable* LDLM dynamic LRU size\n"
+ "\t\t(no)lazystatfs: disable or enable* statfs to work if OST is unavailable\n"
+ "\t\t32bitapi: return only 32-bit inode numbers to userspace\n"
+ "\t\t(no)verbose: disable or enable* messages at filesystem (un,re)mount\n"
+#ifdef HAVE_LUSTRE_CRYPTO
+#ifdef HAVE_LIBKEYUTILS
+ "\t\ttest_dummy_encryption: enable test dummy encryption mode\n"
+#endif
+ "\t\tnoencrypt: disable client side encryption\n"
+#endif
+ );
+ exit((out != stdout) ? EINVAL : 0);
}
/* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
#define MAXNIDSTR 1024
static char *convert_hostnames(char *s1)
{
- char *converted, *s2 = 0, *c;
- char sep;
- int left = MAXNIDSTR;
- lnet_nid_t nid;
-
- converted = malloc(left);
- if (converted == NULL) {
- fprintf(stderr, "out of memory: needed %d bytes\n",
- MAXNIDSTR);
- return NULL;
- }
- c = converted;
- while ((left > 0) && (*s1 != '/')) {
- s2 = strpbrk(s1, ",:");
- if (!s2)
- goto out_free;
- sep = *s2;
- *s2 = '\0';
- nid = libcfs_str2nid(s1);
- *s2 = sep; /* back to original string */
- if (nid == LNET_NID_ANY)
- goto out_free;
- c += snprintf(c, left, "%s%c", libcfs_nid2str(nid), sep);
- left = converted + MAXNIDSTR - c;
- s1 = s2 + 1;
- }
- snprintf(c, left, "%s", s1);
- return converted;
+ char *converted, *s2 = 0, *c;
+ char sep;
+ int left = MAXNIDSTR;
+ lnet_nid_t nid;
+
+ converted = malloc(left);
+ if (!converted) {
+ fprintf(stderr, "out of memory: needed %d bytes\n",
+ MAXNIDSTR);
+ return NULL;
+ }
+ c = converted;
+ while ((left > 0) && (*s1 != '/')) {
+ s2 = strpbrk(s1, ",:");
+ if (!s2)
+ goto out_free;
+ sep = *s2;
+ *s2 = '\0';
+ nid = libcfs_str2nid(s1);
+ *s2 = sep; /* back to original string */
+ if (nid == LNET_NID_ANY)
+ goto out_free;
+ c += scnprintf(c, left, "%s%c", libcfs_nid2str(nid), sep);
+ left = converted + MAXNIDSTR - c;
+ s1 = s2 + 1;
+ }
+ snprintf(c, left, "%s", s1);
+ return converted;
out_free:
- fprintf(stderr, "%s: Can't parse NID '%s'\n", progname, s1);
- free(converted);
- return NULL;
+ fprintf(stderr, "%s: Can't parse NID '%s'\n", progname, s1);
+ free(converted);
+ return NULL;
}
/*****************************************************************************
*
****************************************************************************/
struct opt_map {
- const char *opt; /* option name */
- int inv; /* true if flag value should be inverted */
- int mask; /* flag mask value */
+ const char *opt; /* option name */
+ int inv; /* true if flag value should be inverted */
+ int mask; /* flag mask value */
};
static const struct opt_map opt_map[] = {
- /*"optname", inv,ms_mask */
- /* These flags are parsed by mount, not lustre */
- { "defaults", 0, 0 }, /* default options */
- { "remount", 0, MS_REMOUNT}, /* remount with different options */
- { "rw", 1, MS_RDONLY }, /* read-write */
- { "ro", 0, MS_RDONLY }, /* read-only */
- { "exec", 1, MS_NOEXEC }, /* permit execution of binaries */
- { "noexec", 0, MS_NOEXEC }, /* don't execute binaries */
- { "suid", 1, MS_NOSUID }, /* honor suid executables */
- { "nosuid", 0, MS_NOSUID }, /* don't honor suid executables */
- { "dev", 1, MS_NODEV }, /* interpret device files */
- { "nodev", 0, MS_NODEV }, /* don't interpret devices */
- { "sync", 0, MS_SYNCHRONOUS}, /* synchronous I/O */
- { "async", 1, MS_SYNCHRONOUS}, /* asynchronous I/O */
- { "atime", 1, MS_NOATIME }, /* set file access time on read */
- { "noatime", 0, MS_NOATIME }, /* do not set file access time on read */
+/* these flags are parsed by mount, not Lustre */
+{ .opt = "async", .mask = MS_SYNCHRONOUS, .inv = 1 }, /* asynchronous I/O */
+{ .opt = "atime", .mask = MS_NOATIME, .inv = 1 }, /* set access time */
+{ .opt = "auto" }, /* allow auto mount */
+{ .opt = "defaults" }, /* default options */
+{ .opt = "dev", .mask = MS_NODEV, .inv = 1 }, /* interpret devs */
+{ .opt = "exec", .mask = MS_NOEXEC, .inv = 1 }, /* allow execution */
+{ .opt = "loop" },
+{ .opt = "noatime", .mask = MS_NOATIME }, /* do not set atime */
+{ .opt = "noauto" }, /* mount explicitly */
+{ .opt = "nodev", .mask = MS_NODEV }, /* no interpret devs */
+{ .opt = "noowner", .inv = 1 }, /* no special privs */
+{ .opt = "nosuid", .mask = MS_NOSUID }, /* do not honor suid */
+{ .opt = "nouser", .inv = 1 }, /* users cannot mount */
+{ .opt = "nousers", .inv = 1 }, /* users cannot mount */
+{ .opt = "_netdev" }, /* network only */
+{ .opt = "noexec", .mask = MS_NOEXEC }, /* no execute */
+{ .opt = "remount", .mask = MS_REMOUNT }, /* remount */
+{ .opt = "ro", .mask = MS_RDONLY }, /* read-only */
+{ .opt = "rw", .mask = MS_RDONLY, .inv = 1 }, /* read-write */
+{ .opt = "suid", .mask = MS_NOSUID, .inv = 1 }, /* honor suid */
+{ .opt = "sync", .mask = MS_SYNCHRONOUS }, /* synchronous I/O */
#ifdef MS_NODIRATIME
- { "diratime", 1, MS_NODIRATIME }, /* set file access time on read */
- { "nodiratime",0,MS_NODIRATIME }, /* do not set file access time on read */
+{ .opt = "diratime", /* set access time */
+ .mask = MS_NODIRATIME, .inv = 1 }, /* on read */
+{ .opt = "nodiratime", /* do not set access */
+ .mask = MS_NODIRATIME }, /* time on read */
#endif
#ifdef MS_RELATIME
- { "relatime", 0, MS_RELATIME }, /* set file access time on read */
- { "norelatime",1,MS_RELATIME }, /* do not set file access time on read */
+{ .opt = "norelatime", /* do not set rel */
+ .mask = MS_RELATIME, .inv = 1 }, /* access time */
+{ .opt = "relatime", /* set relative */
+ .mask = MS_RELATIME }, /* access time */
#endif
#ifdef MS_STRICTATIME
- { "strictatime",0,MS_STRICTATIME }, /* update access time strictly */
+{ .opt = "strictatime",
+ .mask = MS_STRICTATIME }, /* strict access time */
#endif
- { "auto", 0, 0 }, /* Can be mounted using -a */
- { "noauto", 0, 0 }, /* Can only be mounted explicitly */
- { "nousers", 1, 0 }, /* Forbid ordinary user to mount */
- { "nouser", 1, 0 }, /* Forbid ordinary user to mount */
- { "noowner", 1, 0 }, /* Device owner has no special privs */
- { "_netdev", 0, 0 }, /* Device accessible only via network */
- { "loop", 0, 0 },
- { NULL, 0, 0 }
-};
+{ .opt = NULL } };
/****************************************************************************/
-/* 1 = don't pass on to lustre
- 0 = pass on to lustre */
+/*
+ * 1 = don't pass on to lustre
+ * 0 = pass on to lustre
+ */
static int parse_one_option(const char *check, int *flagp)
{
- const struct opt_map *opt;
-
- for (opt = &opt_map[0]; opt->opt != NULL; opt++) {
- if (strncmp(check, opt->opt, strlen(opt->opt)) == 0) {
- if (opt->mask) {
- if (opt->inv)
- *flagp &= ~(opt->mask);
- else
- *flagp |= opt->mask;
- }
- return 1;
- }
- }
- /* Assume any unknown options are valid and pass them on. The mount
- will fail if lmd_parse, ll_options or ldiskfs doesn't recognize it.*/
- return 0;
+ const struct opt_map *opt;
+
+ for (opt = &opt_map[0]; opt->opt != NULL; opt++) {
+ if (strncmp(check, opt->opt, strlen(opt->opt)) == 0) {
+ if (opt->mask) {
+ if (opt->inv)
+ *flagp &= ~(opt->mask);
+ else
+ *flagp |= opt->mask;
+ }
+ return 1;
+ }
+ }
+ /*
+ * Assume any unknown options are valid and pass them on. The mount
+ * will fail if lmd_parse, ll_options or ldiskfs doesn't recognize it.
+ */
+ return 0;
}
-static void append_option(char *options, const char *one)
+static size_t merge_strings(char *dst, const char *src, size_t size)
{
- if (*options)
- strcat(options, ",");
- strcat(options, one);
+ size_t dsize = strlen(dst);
+ size_t len = strlen(src);
+ size_t ret = dsize + len;
+
+ dst += dsize;
+ size -= dsize;
+ if (len >= size)
+ len = size - 1;
+ memcpy(dst, src, len);
+ dst[len] = '\0';
+ return ret;
+}
+
+static int append_option(char *options, size_t options_len,
+ const char *param, const char *value)
+{
+ int rc;
+
+ if (options[0] != '\0') {
+ rc = merge_strings(options, ",", options_len);
+ if (rc >= options_len)
+ goto out_err;
+ }
+
+ rc = merge_strings(options, param, options_len);
+ if (rc >= options_len)
+ goto out_err;
+
+ if (value) {
+ rc = merge_strings(options, value, options_len);
+ if (rc >= options_len)
+ goto out_err;
+ }
+ return 0;
+out_err:
+ fprintf(stderr, "error: mount options %s%s too long\n", param, value);
+ return E2BIG;
}
-/* Replace options with subset of Lustre-specific options, and
- fill in mount flags */
-int parse_options(struct mount_opts *mop, char *orig_options, int *flagp)
+/*
+ * Replace options with subset of Lustre-specific options, and
+ * fill in mount flags
+ */
+int parse_options(struct mount_opts *mop, char *orig_options,
+ int *flagp, size_t options_len)
{
- char *options, *opt, *nextopt, *arg, *val;
-
- options = calloc(strlen(orig_options) + 1, 1);
- *flagp = 0;
- nextopt = orig_options;
- while ((opt = strsep(&nextopt, ","))) {
- if (!*opt)
- /* empty option */
- continue;
-
- /* Handle retries in a slightly different
- * manner */
- arg = opt;
- val = strchr(opt, '=');
- /* please note that some ldiskfs mount options are also in the form
- * of param=value. We should pay attention not to remove those
- * mount options, see bug 22097. */
- if (val && strncmp(arg, "md_stripe_cache_size", 20) == 0) {
- md_stripe_cache_size = atoi(val + 1);
- } else if (val && strncmp(arg, "retry", 5) == 0) {
+ char *options, *opt, *nextopt, *arg, *val;
+ int rc = 0;
+
+ options = calloc(strlen(orig_options) + 1, 1);
+ if (!options)
+ return ENOMEM;
+
+ *flagp = 0;
+ nextopt = orig_options;
+ while ((opt = strsep(&nextopt, ","))) {
+ if (!*opt)
+ /* empty option */
+ continue;
+
+ /* Handle retries in a slightly different manner */
+ arg = opt;
+ val = strchr(opt, '=');
+ /*
+ * please note that some ldiskfs mount options are also in
+ * the form of param=value. We should pay attention not to
+ * remove those mount options, see bug 22097.
+ */
+ if (val && strncmp(arg, "max_sectors_kb", 14) == 0) {
+ mop->mo_max_sectors_kb = atoi(val + 1);
+ } else if (val &&
+ strncmp(arg, "md_stripe_cache_size", 20) == 0) {
+ mop->mo_md_stripe_cache_size = atoi(val + 1);
+ } else if (val && strncmp(arg, "retry", 5) == 0) {
mop->mo_retry = atoi(val + 1);
if (mop->mo_retry > MAX_RETRIES)
mop->mo_retry = MAX_RETRIES;
else if (mop->mo_retry < 0)
mop->mo_retry = 0;
- } else if (val && strncmp(arg, "mgssec", 6) == 0) {
- append_option(options, opt);
- } else if (strcmp(opt, "force") == 0) {
- //XXX special check for 'force' option
+ } else if (val && strncmp(arg, "mgssec", 6) == 0) {
+ rc = append_option(options, options_len, opt, NULL);
+ if (rc != 0)
+ goto out_options;
+ } else if (strncmp(arg, "nosvc", 5) == 0) {
+ mop->mo_nosvc = 1;
+ rc = append_option(options, options_len, opt, NULL);
+ if (rc != 0)
+ goto out_options;
+ } else if (strcmp(opt, "force") == 0) {
+ /* XXX special check for 'force' option */
++mop->mo_force;
printf("force: %d\n", mop->mo_force);
- } else if (parse_one_option(opt, flagp) == 0) {
- /* pass this on as an option */
- append_option(options, opt);
- }
- }
+#ifdef HAVE_GSS
+ } else if (val && strncmp(opt, "skpath=", 7) == 0) {
+ if (strlen(val) + 1 >= sizeof(mop->mo_skpath)) {
+ fprintf(stderr,
+ "%s: shared key path too long\n",
+ progname);
+ free(options);
+ return EINVAL;
+ }
+ strncpy(mop->mo_skpath, val + 1,
+ sizeof(mop->mo_skpath) - 1);
+#endif
+#ifdef HAVE_LUSTRE_CRYPTO
+ } else if (strncmp(arg, "test_dummy_encryption", 21) == 0) {
+#ifdef HAVE_LIBKEYUTILS
+ /* Using dummy encryption mode requires inserting a
+ * special dummy key into the session keyring.
+ * Key type is "logon", key description is
+ * "fscrypt:4242424242424242", and key payload has to be
+ * in the form <mode><raw><size>, where:
+ * <mode> is "\x00\x00\x00\x00"
+ * <raw> is "$(printf ""\\\\x%02x"" {0..63})"
+ * <size> is "\x40\x00\x00\x00" for little endian,
+ * "\x00\x00\x00\x40" for big endian.
+ */
+ char payload[72];
+ int *p = (int *)payload;
+ char *q = (char *)(p + 1);
+ int i = 0;
+ key_serial_t key;
+
+ *p = 0;
+ while (i < 0x40)
+ *(q++) = i++;
+ p = (int *)q;
+ *p = 0x40;
+
+ key = add_key("logon", "fscrypt:4242424242424242",
+ (const void *)payload, sizeof(payload),
+ KEY_SPEC_SESSION_KEYRING);
+
+ if (key == -1) {
+ fprintf(stderr,
+ "%s: test dummy encryption option ignored: could not insert dummy encryption key into session keyring\n",
+ progname);
+ } else {
+ /* pass this on as an option */
+ rc = append_option(options, options_len, opt,
+ NULL);
+ if (rc != 0)
+ goto out_options;
+ }
+#else /* HAVE_LIBKEYUTILS */
+ fprintf(stderr,
+ "%s: test dummy encryption option ignored: Lustre not built with libkeyutils support\n",
+ progname);
+#endif
+#endif
+ } else if (parse_one_option(opt, flagp) == 0) {
+ /* pass this on as an option */
+ rc = append_option(options, options_len, opt, NULL);
+ if (rc != 0)
+ goto out_options;
+ }
+ }
#ifdef MS_STRICTATIME
- /* set strictatime to default if NOATIME or RELATIME
- not given explicit */
- if (!(*flagp & (MS_NOATIME | MS_RELATIME)))
- *flagp |= MS_STRICTATIME;
+#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(3, 2, 53, 0)
+ /*
+ * LU-1783
+ * In the future when upstream fixes land in all supported kernels
+ * we should stop forcing MS_STRICTATIME in lustre mounts.
+ * We override the kernel level default of MS_RELATIME for now
+ * due to a kernel vfs level bug in atime updates that fails
+ * to reset timestamps from the future.
+ */
+#warn "remove MS_STRICTATIME override if kernel updates atime from the future"
#endif
- strcpy(orig_options, options);
- free(options);
- return 0;
-}
+ /*
+ * set strictatime to default if NOATIME or RELATIME
+ * not given explicit
+ */
+ if (!(*flagp & (MS_NOATIME | MS_RELATIME)))
+ *flagp |= MS_STRICTATIME;
+#endif
+ strcpy(orig_options, options);
+out_options:
+ free(options);
+ return rc;
+}
-int read_file(char *path, char *buf, int size)
+#ifdef HAVE_SERVER_SUPPORT
+/* Add mgsnids from ldd params */
+static int add_mgsnids(struct mount_opts *mop, char *options,
+ const char *params, size_t options_len)
{
- FILE *fd;
-
- fd = fopen(path, "r");
- if (fd == NULL)
- return errno;
-
- /* should not ignore fgets(3)'s return value */
- if (!fgets(buf, size, fd)) {
- fprintf(stderr, "reading from %s: %s", path, strerror(errno));
- fclose(fd);
- return 1;
- }
- fclose(fd);
- return 0;
+ char *ptr = (char *)params;
+ char tmp, *sep;
+ int rc = 0;
+
+ while ((ptr = strstr(ptr, PARAM_MGSNODE)) != NULL) {
+ sep = strchr(ptr, ' ');
+ if (sep) {
+ tmp = *sep;
+ *sep = '\0';
+ }
+ rc = append_option(options, options_len, ptr, NULL);
+ if (rc != 0)
+ goto out;
+ mop->mo_have_mgsnid++;
+ if (sep) {
+ *sep = tmp;
+ ptr = sep;
+ } else {
+ break;
+ }
+ }
+
+out:
+ return rc;
}
-int write_file(char *path, char *buf)
+static int clear_update_ondisk(char *source, struct lustre_disk_data *ldd)
{
- FILE *fd;
+ char wanted_mountopts[512] = "";
+ struct mkfs_opts mkop;
+ int ret;
+ int ret2;
+
+ memset(&mkop, 0, sizeof(mkop));
+ mkop.mo_ldd = *ldd;
+ mkop.mo_ldd.ldd_flags &= ~LDD_F_UPDATE;
+ mkop.mo_flags = MO_NOHOSTID_CHECK; /* Ignore missing hostid */
+ if (strlen(source) > sizeof(mkop.mo_device) - 1) {
+ fatal();
+ fprintf(stderr, "Device name too long: %s\n", source);
+ return -E2BIG;
+ }
+ strncpy(mkop.mo_device, source, sizeof(mkop.mo_device));
+
+ ret = osd_prepare_lustre(&mkop,
+ wanted_mountopts, sizeof(wanted_mountopts));
+ if (ret) {
+ fatal();
+ fprintf(stderr, "Can't prepare device %s: %s\n",
+ source, strerror(ret));
+ return ret;
+ }
+
+ /* Create the loopback file */
+ if (mkop.mo_flags & MO_IS_LOOP) {
+ ret = access(mkop.mo_device, F_OK);
+ if (ret) {
+ ret = errno;
+ fatal();
+ fprintf(stderr, "Can't access device %s: %s\n",
+ source, strerror(ret));
+ return ret;
+ }
+
+ ret = loop_setup(&mkop);
+ if (ret) {
+ fatal();
+ fprintf(stderr, "Loop device setup for %s failed: %s\n",
+ mkop.mo_device, strerror(ret));
+ return ret;
+ }
+ }
+ ret = osd_write_ldd(&mkop);
+ if (ret != 0) {
+ fatal();
+ fprintf(stderr, "failed to write local files: %s\n",
+ strerror(ret));
+ }
- fd = fopen(path, "w");
- if (fd == NULL)
- return errno;
+ ret2 = loop_cleanup(&mkop);
+ if (ret == 0)
+ ret = ret2;
- fputs(buf, fd);
- fclose(fd);
- return 0;
+ return ret;
}
-/* This is to tune the kernel for good SCSI performance.
- * For that we set the value of /sys/block/{dev}/queue/max_sectors_kb
- * to the value of /sys/block/{dev}/queue/max_hw_sectors_kb */
-int set_blockdev_tunables(char *source, int fan_out)
+static int parse_ldd(char *source, struct mount_opts *mop,
+ char *options, size_t options_len)
{
- glob_t glob_info = { 0 };
- struct stat stat_buf;
- char *chk_major, *chk_minor;
- char *savept = NULL, *dev;
- char *ret_path;
- char buf[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
- char real_path[PATH_MAX] = {'\0'};
- int i, rc = 0;
- int major, minor;
-
- if (!source)
- return -EINVAL;
-
- ret_path = realpath(source, real_path);
- if (ret_path == NULL) {
- if (verbose)
- fprintf(stderr, "warning: %s: cannot resolve: %s\n",
- source, strerror(errno));
- return -EINVAL;
- }
-
- if (strncmp(real_path, "/dev/loop", 9) == 0)
- return 0;
-
- if ((real_path[0] != '/') && (strpbrk(real_path, ",:") != NULL))
- return 0;
-
- snprintf(path, sizeof(path), "/sys/block%s", real_path + 4);
- if (access(path, X_OK) == 0)
- goto set_params;
-
- /* The name of the device say 'X' specified in /dev/X may not
- * match any entry under /sys/block/. In that case we need to
- * match the major/minor number to find the entry under
- * sys/block corresponding to /dev/X */
-
- /* Don't chop tail digit on /dev/mapper/xxx, LU-478 */
- if (strncmp(real_path, "/dev/mapper", 11) != 0) {
- dev = real_path + strlen(real_path);
- while (--dev > real_path && isdigit(*dev))
- *dev = 0;
-
- if (strncmp(real_path, "/dev/md_", 8) == 0)
- *dev = 0;
- }
-
- rc = stat(real_path, &stat_buf);
- if (rc) {
- if (verbose)
- fprintf(stderr, "warning: %s, device %s stat failed\n",
- strerror(errno), real_path);
- return rc;
- }
-
- major = major(stat_buf.st_rdev);
- minor = minor(stat_buf.st_rdev);
- rc = glob("/sys/block/*", GLOB_NOSORT, NULL, &glob_info);
- if (rc) {
- if (verbose)
- fprintf(stderr, "warning: failed to read entries under "
- "/sys/block\n");
- globfree(&glob_info);
- return rc;
- }
-
- for (i = 0; i < glob_info.gl_pathc; i++){
- snprintf(path, sizeof(path), "%s/dev", glob_info.gl_pathv[i]);
-
- rc = read_file(path, buf, sizeof(buf));
- if (rc)
- continue;
-
- if (buf[strlen(buf) - 1] == '\n')
- buf[strlen(buf) - 1] = '\0';
-
- chk_major = strtok_r(buf, ":", &savept);
- chk_minor = savept;
- if (major == atoi(chk_major) &&minor == atoi(chk_minor))
- break;
- }
-
- if (i == glob_info.gl_pathc) {
- if (verbose)
- fprintf(stderr,"warning: device %s does not match any "
- "entry under /sys/block\n", real_path);
- globfree(&glob_info);
- return -EINVAL;
- }
-
- /* Chop off "/dev" from path we found */
- path[strlen(glob_info.gl_pathv[i])] = '\0';
- globfree(&glob_info);
-
-set_params:
- if (strncmp(real_path, "/dev/md", 7) == 0) {
- snprintf(real_path, sizeof(real_path), "%s/%s", path,
- STRIPE_CACHE_SIZE);
-
- rc = read_file(real_path, buf, sizeof(buf));
- if (rc) {
- if (verbose)
- fprintf(stderr, "warning: opening %s: %s\n",
- real_path, strerror(errno));
- return 0;
- }
-
- if (atoi(buf) >= md_stripe_cache_size)
- return 0;
-
- if (strlen(buf) - 1 > 0) {
- snprintf(buf, sizeof(buf), "%d", md_stripe_cache_size);
- rc = write_file(real_path, buf);
- if (rc && verbose)
- fprintf(stderr, "warning: opening %s: %s\n",
- real_path, strerror(errno));
- }
- /* Return since raid and disk tunables are different */
- return rc;
- }
-
- snprintf(real_path, sizeof(real_path), "%s/%s", path,
- MAX_HW_SECTORS_KB_PATH);
- rc = read_file(real_path, buf, sizeof(buf));
- if (rc) {
- if (verbose)
- fprintf(stderr, "warning: opening %s: %s\n",
- real_path, strerror(errno));
- /* No MAX_HW_SECTORS_KB_PATH isn't necessary an
- * error for some device. */
- rc = 0;
- }
-
- if (strlen(buf) - 1 > 0) {
- snprintf(real_path, sizeof(real_path), "%s/%s", path,
- MAX_SECTORS_KB_PATH);
- rc = write_file(real_path, buf);
- if (rc) {
- if (verbose)
- fprintf(stderr, "warning: writing to %s: %s\n",
- real_path, strerror(errno));
- /* No MAX_SECTORS_KB_PATH isn't necessary an
- * error for some device. */
- rc = 0;
- }
- }
-
- if (fan_out) {
- char *slave = NULL;
- glob_info.gl_pathc = 0;
- glob_info.gl_offs = 0;
- /* if device is multipath device, tune its slave devices */
- snprintf(real_path, sizeof(real_path), "%s/slaves/*", path);
- rc = glob(real_path, GLOB_NOSORT, NULL, &glob_info);
-
- for (i = 0; rc == 0 && i < glob_info.gl_pathc; i++){
- slave = basename(glob_info.gl_pathv[i]);
- snprintf(real_path, sizeof(real_path), "/dev/%s", slave);
- rc = set_blockdev_tunables(real_path, 0);
- }
-
- if (rc == GLOB_NOMATCH) {
- /* no slave device is not an error */
- rc = 0;
- } else if (rc && verbose) {
- if (slave == NULL) {
- fprintf(stderr, "warning: %s, failed to read"
- " entries under %s/slaves\n",
- strerror(errno), path);
- } else {
- fprintf(stderr, "unable to set tunables for"
- " slave device %s (slave would be"
- " unable to handle IO request from"
- " master %s)\n",
- real_path, source);
- }
- }
- globfree(&glob_info);
- }
-
- return rc;
+ struct lustre_disk_data *ldd = &mop->mo_ldd;
+ char *cur, *start;
+ char *temp_options;
+ int rc = 0;
+
+ rc = osd_is_lustre(source, &ldd->ldd_mount_type);
+ if (rc == 0) {
+ fprintf(stderr,
+ "%s: %s has not been formatted with mkfs.lustre or the backend filesystem type is not supported by this tool\n",
+ progname, source);
+ return ENODEV;
+ }
+
+ rc = osd_read_ldd(source, ldd);
+ if (rc) {
+ fprintf(stderr,
+ "%s: %s failed to read permanent mount data: %s\n",
+ progname, source, rc >= 0 ? strerror(rc) : "");
+ return rc;
+ }
+
+ if ((IS_MDT(ldd) || IS_OST(ldd)) &&
+ (ldd->ldd_flags & LDD_F_NEED_INDEX)) {
+ fprintf(stderr,
+ "%s: %s has no index assigned (probably formatted with old mkfs)\n",
+ progname, source);
+ return EINVAL;
+ }
+
+ if (ldd->ldd_flags & LDD_F_UPDATE)
+ clear_update_ondisk(source, ldd);
+
+ /* Since we never rewrite ldd, ignore temp flags */
+ ldd->ldd_flags &= ~(LDD_F_VIRGIN | LDD_F_WRITECONF |
+ LDD_F_NO_LOCAL_LOGS);
+
+ /* This is to make sure default options go first */
+ temp_options = strdup(options);
+ if (!temp_options) {
+ fprintf(stderr, "%s: can't allocate memory for temp_options\n",
+ progname);
+ return ENOMEM;
+ }
+ strncpy(options, ldd->ldd_mount_opts, options_len);
+ rc = append_option(options, options_len, temp_options, NULL);
+ free(temp_options);
+ if (rc != 0)
+ return rc;
+
+ /* svname of the form lustre:OST1234 means never registered */
+ rc = strlen(ldd->ldd_svname);
+ if (strcmp(ldd->ldd_svname, "MGS") != 0) {
+ if (rc < 8) {
+ fprintf(stderr, "%s: invalid name '%s'\n",
+ progname, ldd->ldd_svname);
+ return EINVAL;
+ } else if (ldd->ldd_svname[rc - 8] == ':') {
+ ldd->ldd_svname[rc - 8] = '-';
+ ldd->ldd_flags |= LDD_F_VIRGIN;
+ } else if (ldd->ldd_svname[rc - 8] == '=') {
+ ldd->ldd_svname[rc - 8] = '-';
+ ldd->ldd_flags |= LDD_F_WRITECONF;
+ } else if (ldd->ldd_svname[rc - 8] == '+') {
+ ldd->ldd_svname[rc - 8] = '-';
+ ldd->ldd_flags |= LDD_F_NO_LOCAL_LOGS;
+ }
+ }
+ /* backend osd type */
+ rc = append_option(options, options_len, "osd=",
+ mt_type(ldd->ldd_mount_type));
+ if (rc != 0)
+ return rc;
+
+ if (!mop->mo_have_mgsnid) {
+ /*
+ * Only use disk data if mount -o mgsnode=nid wasn't
+ * specified
+ */
+ if (ldd->ldd_flags & LDD_F_SV_TYPE_MGS) {
+ rc = append_option(options, options_len, "mgs", NULL);
+ if (rc != 0)
+ return rc;
+ mop->mo_have_mgsnid++;
+ } else {
+ if (add_mgsnids(mop, options, ldd->ldd_params,
+ options_len))
+ return E2BIG;
+ }
+ }
+ /* Better have an mgsnid by now */
+ if (!mop->mo_have_mgsnid) {
+ fprintf(stderr, "%s: missing option mgsnode=<nid>\n",
+ progname);
+ return EINVAL;
+ }
+
+ if (ldd->ldd_flags & LDD_F_VIRGIN) {
+ rc = append_option(options, options_len, "virgin", NULL);
+ if (rc != 0)
+ return rc;
+ }
+ if (ldd->ldd_flags & LDD_F_UPDATE) {
+ rc = append_option(options, options_len, "update", NULL);
+ if (rc != 0)
+ return rc;
+ }
+ if (ldd->ldd_flags & LDD_F_WRITECONF) {
+ rc = append_option(options, options_len, "writeconf", NULL);
+ if (rc != 0)
+ return rc;
+ }
+ if (ldd->ldd_flags & LDD_F_NO_LOCAL_LOGS) {
+ rc = append_option(options, options_len, "nolocallogs", NULL);
+ if (rc != 0)
+ return rc;
+ }
+ if (ldd->ldd_flags & LDD_F_NO_PRIMNODE) {
+ rc = append_option(options, options_len, "noprimnode", NULL);
+ if (rc != 0)
+ return rc;
+ }
+
+ /*
+ * prefix every lustre parameter with param= so that in-kernel
+ * mount can recognize them properly and send to MGS at registration
+ */
+ start = ldd->ldd_params;
+ while (start && *start != '\0') {
+ while (*start == ' ')
+ start++;
+ if (*start == '\0')
+ break;
+ cur = start;
+ start = strchr(cur, ' ');
+ if (start) {
+ *start = '\0';
+ start++;
+ }
+ rc = append_option(options, options_len, "param=", cur);
+ if (rc != 0)
+ return rc;
+ }
+
+ /* svname must be last option */
+ rc = append_option(options, options_len, "svname=", ldd->ldd_svname);
+
+ return rc;
}
+#endif /* HAVE_SERVER_SUPPORT */
static void set_defaults(struct mount_opts *mop)
{
mop->mo_have_mgsnid = 0;
mop->mo_md_stripe_cache_size = 16384;
mop->mo_orig_options = "";
+ mop->mo_nosvc = 0;
+ mop->mo_max_sectors_kb = -1;
}
static int parse_opts(int argc, char *const argv[], struct mount_opts *mop)
{
- static struct option long_opt[] = {
- {"fake", 0, 0, 'f'},
- {"force", 0, 0, 1},
- {"help", 0, 0, 'h'},
- {"nomtab", 0, 0, 'n'},
- {"options", 1, 0, 'o'},
- {"verbose", 0, 0, 'v'},
- {0, 0, 0, 0}
- };
+ static struct option long_opts[] = {
+ { .val = 1, .name = "force", .has_arg = no_argument },
+ { .val = 'f', .name = "fake", .has_arg = no_argument },
+ { .val = 'h', .name = "help", .has_arg = no_argument },
+ { .val = 'n', .name = "nomtab", .has_arg = no_argument },
+ { .val = 'o', .name = "options", .has_arg = required_argument },
+ { .val = 'v', .name = "verbose", .has_arg = no_argument },
+ { .val = 'V', .name = "version", .has_arg = no_argument },
+ { .name = NULL } };
char real_path[PATH_MAX] = {'\0'};
FILE *f;
char path[256], name[256];
char *ptr;
int opt, rc;
- while ((opt = getopt_long(argc, argv, "fhno:v",
- long_opt, NULL)) != EOF){
+ while ((opt = getopt_long(argc, argv, "fhno:vV",
+ long_opts, NULL)) != EOF){
switch (opt) {
case 1:
++mop->mo_force;
case 'v':
++verbose;
break;
+ case 'V':
+ ++version;
+ fprintf(stdout, "%s %s %s\n", progname,
+ LUSTRE_VERSION_STRING, WITH_LIBMOUNT);
+ return 0;
default:
fprintf(stderr, "%s: unknown option '%c'\n",
- progname, opt);
+ progname, opt);
usage(stderr);
break;
}
}
mop->mo_usource = argv[optind];
- if (!mop->mo_usource) {
+ if (!mop->mo_usource)
usage(stderr);
- }
/**
* Try to get the real path to the device, in case it is a
* symbolic link for instance
*/
if (realpath(mop->mo_usource, real_path) != NULL) {
- mop->mo_usource = strdup(real_path);
-
ptr = strrchr(real_path, '/');
- if (ptr && strncmp(ptr, "/dm-", 4) == 0 && isdigit(*(ptr + 4))) {
- snprintf(path, sizeof(path), "/sys/block/%s/dm/name", ptr+1);
+ if (ptr && strncmp(ptr, "/dm-", 4) == 0 &&
+ isdigit(*(ptr + 4))) {
+ snprintf(path, sizeof(path), "/sys/block/%s/dm/name",
+ ptr + 1);
if ((f = fopen(path, "r"))) {
/* read "<name>\n" from sysfs */
- if (fgets(name, sizeof(name), f) && (sz = strlen(name)) > 1) {
+ if (fgets(name, sizeof(name), f) &&
+ (sz = strlen(name)) > 1) {
name[sz - 1] = '\0';
- snprintf(real_path, sizeof(real_path), "/dev/mapper/%s", name);
+ snprintf(real_path, sizeof(real_path),
+ "/dev/mapper/%s", name);
}
fclose(f);
}
}
+ mop->mo_usource = strdup(real_path);
}
- mop->mo_source = convert_hostnames(mop->mo_usource);
- if (!mop->mo_source) {
- usage(stderr);
+ ptr = strstr(mop->mo_usource, ":/");
+ if (ptr) {
+ mop->mo_source = convert_hostnames(mop->mo_usource);
+ if (!mop->mo_source)
+ usage(stderr);
+ } else {
+ mop->mo_source = strdup(mop->mo_usource);
}
if (realpath(argv[optind + 1], mop->mo_target) == NULL) {
rc = errno;
fprintf(stderr, "warning: %s: cannot resolve: %s\n",
- argv[optind + 1], strerror(errno));
+ argv[optind + 1], strerror(errno));
return rc;
}
return 0;
}
+#ifdef HAVE_SERVER_SUPPORT
+/*
+ * change label from <fsname>:<index> to
+ * <fsname>-<index> to indicate the device has
+ * been registered. only if the label is
+ * supposed to be changed and target service
+ * is supposed to start
+ */
+static void label_lustre(struct mount_opts *mop)
+{
+ if (mop->mo_nosvc)
+ return;
+
+ if (mop->mo_ldd.ldd_flags & (LDD_F_VIRGIN | LDD_F_WRITECONF |
+ LDD_F_NO_LOCAL_LOGS)) {
+ (void)osd_label_lustre(mop);
+ } else {
+ struct lustre_disk_data ldd;
+ int rc;
+
+ /*
+ * device label could be changed after journal recovery,
+ * it should also be relabeled for mount has succeeded.
+ */
+ memset(&ldd, 0, sizeof(ldd));
+ ldd.ldd_mount_type = mop->mo_ldd.ldd_mount_type;
+ rc = osd_read_ldd(mop->mo_source, &ldd);
+ if (rc == 0) {
+ rc = strlen(ldd.ldd_svname);
+ if (rc >= 8 && ldd.ldd_svname[rc - 8] != '-')
+ (void)osd_label_lustre(mop);
+ }
+ }
+}
+#endif /* HAVE_SERVER_SUPPORT */
+
int main(int argc, char *const argv[])
{
struct mount_opts mop;
- char *options, *optcopy;
- int i, rc, flags, optlen;
+ char *options;
+ int i, flags;
+ int rc;
+ bool client;
+ size_t maxopt_len;
+ size_t g_pagesize;
progname = strrchr(argv[0], '/');
progname = progname ? progname + 1 : argv[0];
set_defaults(&mop);
+ g_pagesize = sysconf(_SC_PAGESIZE);
+ if (g_pagesize == -1) {
+ rc = errno;
+ printf("error: %d failed to get page size.\n", rc);
+ return rc;
+ }
+ maxopt_len = MIN(g_pagesize, 64 * 1024);
+
rc = parse_opts(argc, argv, &mop);
- if (rc)
+ if (rc || version)
return rc;
- if (verbose) {
- for (i = 0; i < argc; i++)
- printf("arg[%d] = %s\n", i, argv[i]);
+ if (verbose) {
+ for (i = 0; i < argc; i++)
+ printf("arg[%d] = %s\n", i, argv[i]);
printf("source = %s (%s), target = %s\n", mop.mo_usource,
mop.mo_source, mop.mo_target);
printf("options = %s\n", mop.mo_orig_options);
- }
+ }
+
+ options = malloc(maxopt_len);
+ if (!options) {
+ fprintf(stderr, "can't allocate memory for options\n");
+ rc = ENOMEM;
+ goto out_mo_source;
+ }
+
+ if (strlen(mop.mo_orig_options) >= maxopt_len) {
+ fprintf(stderr, "error: mount options too long\n");
+ rc = E2BIG;
+ goto out_options;
+ }
- options = malloc(strlen(mop.mo_orig_options) + 1);
- if (options == NULL) {
- fprintf(stderr, "can't allocate memory for options\n");
- return -1;
- }
strcpy(options, mop.mo_orig_options);
- rc = parse_options(&mop, options, &flags);
- if (rc) {
- fprintf(stderr, "%s: can't parse options: %s\n",
- progname, options);
- return(EINVAL);
- }
+ rc = parse_options(&mop, options, &flags, maxopt_len);
+ if (rc) {
+ fprintf(stderr, "%s: can't parse options: %s\n",
+ progname, options);
+ goto out_options;
+ }
if (!mop.mo_force) {
rc = check_mtab_entry(mop.mo_usource, mop.mo_source,
mop.mo_target, "lustre");
- if (rc && !(flags & MS_REMOUNT)) {
- fprintf(stderr, "%s: according to %s %s is "
- "already mounted on %s\n", progname, MOUNTED,
- mop.mo_usource, mop.mo_target);
- return(EEXIST);
- }
- if (!rc && (flags & MS_REMOUNT)) {
- fprintf(stderr, "%s: according to %s %s is "
- "not already mounted on %s\n", progname, MOUNTED,
- mop.mo_usource, mop.mo_target);
- return(ENOENT);
- }
- }
- if (flags & MS_REMOUNT)
+ if (rc && !(flags & MS_REMOUNT)) {
+ fprintf(stderr,
+ "%s: according to %s %s is already mounted on %s\n",
+ progname, MOUNTED, mop.mo_usource,
+ mop.mo_target);
+ rc = EEXIST;
+ goto out_options;
+ }
+ if (!rc && (flags & MS_REMOUNT)) {
+ fprintf(stderr,
+ "%s: according to %s %s is not already mounted on %s\n",
+ progname, MOUNTED, mop.mo_usource,
+ mop.mo_target);
+ rc = ENOENT;
+ goto out_options;
+ }
+ }
+ if (flags & MS_REMOUNT)
mop.mo_nomtab++;
rc = access(mop.mo_target, F_OK);
- if (rc) {
- rc = errno;
+ if (rc) {
+ rc = errno;
fprintf(stderr, "%s: %s inaccessible: %s\n", progname,
mop.mo_target, strerror(errno));
- return rc;
- }
-
- /* In Linux 2.4, the target device doesn't get passed to any of our
- functions. So we'll stick it on the end of the options. */
- optlen = strlen(options) + strlen(",device=") + strlen(mop.mo_source) + 1;
- optcopy = malloc(optlen);
- if (optcopy == NULL) {
- fprintf(stderr, "can't allocate memory to optcopy\n");
- return -1;
- }
- strcpy(optcopy, options);
- if (*optcopy)
- strcat(optcopy, ",");
- strcat(optcopy, "device=");
- strcat(optcopy, mop.mo_source);
-
- if (verbose)
- printf("mounting device %s at %s, flags=%#x options=%s\n",
- mop.mo_source, mop.mo_target, flags, optcopy);
-
- if (!strstr(mop.mo_usource, ":/") && set_blockdev_tunables(mop.mo_source, 1)) {
- if (verbose)
- fprintf(stderr, "%s: unable to set tunables for %s"
- " (may cause reduced IO performance)\n",
+ goto out_options;
+ }
+
+ client = (strstr(mop.mo_usource, ":/") != NULL);
+ if (!client) {
+#ifdef HAVE_SERVER_SUPPORT
+ rc = osd_init();
+ if (rc)
+ goto out_options;
+
+ rc = parse_ldd(mop.mo_source, &mop, options, maxopt_len);
+ if (rc)
+ goto out_osd;
+#else
+ rc = EINVAL;
+ fprintf(stderr, "%s: cannot mount %s: no server support\n",
+ progname, mop.mo_usource);
+ goto out_options;
+#endif
+ }
+
+ /*
+ * In Linux 2.4, the target device doesn't get passed to any of our
+ * functions. So we'll stick it on the end of the options.
+ */
+ rc = append_option(options, maxopt_len, "device=", mop.mo_source);
+ if (rc != 0)
+ goto out_osd;
+
+ if (verbose)
+ printf("mounting device %s at %s, flags=%#x options=%s\n",
+ mop.mo_source, mop.mo_target, flags, options);
+
+#ifdef HAVE_SERVER_SUPPORT
+ if (!client && osd_tune_lustre(mop.mo_source, &mop)) {
+ if (verbose)
+ fprintf(stderr,
+ "%s: unable to set tunables for %s (may cause reduced IO performance)\n",
argv[0], mop.mo_source);
- }
+ }
+#endif
+#ifdef HAVE_GSS
+ if (mop.mo_skpath[0] != '\0') {
+ /* Treat shared key failures as fatal */
+ rc = load_shared_keys(&mop);
+ if (rc) {
+ fprintf(stderr, "%s: Error loading shared keys: %s\n",
+ progname, strerror(rc));
+ goto out_osd;
+ }
+ }
+#endif /* HAVE_GSS */
if (!mop.mo_fake) {
- /* flags and target get to lustre_get_sb, but not
- lustre_fill_super. Lustre ignores the flags, but mount
- does not. */
- for (i = 0, rc = -EAGAIN; i <= mop.mo_retry && rc != 0; i++) {
- rc = mount(mop.mo_source, mop.mo_target, "lustre",
- flags, (void *)optcopy);
- if (rc) {
- if (verbose) {
- fprintf(stderr, "%s: mount %s at %s "
- "failed: %s retries left: "
- "%d\n", basename(progname),
+ char *fstype;
+
+ /* Prefer filesystem type given on mount command line
+ * so it appears correctly in the /proc/mounts output.
+ */
+ if (strstr(argv[0], "mount.lustre_tgt"))
+ fstype = "lustre_tgt";
+ else
+ fstype = "lustre";
+ /*
+ * flags and target get to lustre_get_sb(), but not
+ * lustre_fill_super(). Lustre ignores the flags, but mount
+ * does not.
+ */
+ for (i = 0, rc = -EAGAIN; i <= mop.mo_retry && rc != 0; i++) {
+ rc = mount(mop.mo_source, mop.mo_target, fstype,
+ flags, (void *)options);
+ if (rc != 0) {
+ if (verbose) {
+ fprintf(stderr,
+ "%s: mount -t %s %s at %s failed: %s retries left: %d\n",
+ basename(progname), fstype,
mop.mo_usource, mop.mo_target,
- strerror(errno),
+ strerror(errno),
mop.mo_retry - i);
- }
+ }
+
+ /* Pre-2.13 Lustre without 'lustre_tgt' type?
+ * Try with 'lustre' instead. Eventually this
+ * can be removed (e.g. 2.18 or whenever).
+ */
+ if (errno == ENODEV &&
+ strcmp(fstype, "lustre_tgt") == 0) {
+ fstype = "lustre";
+ i--;
+ continue;
+ }
- if (mop.mo_retry) {
- sleep(1 << max((i/2), 5));
- }
- else {
- rc = errno;
- }
- }
- }
- }
+ if (mop.mo_retry) {
+ int limit = i / 2 > 5 ? i / 2 : 5;
- if (rc) {
- char *cli;
+ sleep(1 << limit);
+ } else {
+ rc = errno;
+ }
+#ifdef HAVE_SERVER_SUPPORT
+ } else {
+ if (!client)
+ label_lustre(&mop);
+#endif
+ }
+ }
+ }
- rc = errno;
+ if (rc) {
+ char *cli;
+
+ rc = errno;
cli = strrchr(mop.mo_usource, ':');
- if (cli && (strlen(cli) > 2))
- cli += 2;
- else
- cli = NULL;
+ if (cli && (strlen(cli) > 2))
+ cli += 2;
+ else
+ cli = NULL;
- fprintf(stderr, "%s: mount %s at %s failed: %s\n", progname,
+ fprintf(stderr, "%s: mount %s at %s failed: %s\n", progname,
mop.mo_usource, mop.mo_target, strerror(errno));
- if (errno == ENODEV)
- fprintf(stderr, "Are the lustre modules loaded?\n"
- "Check /etc/modprobe.conf and "
- "/proc/filesystems\n");
- if (errno == ENOTBLK)
- fprintf(stderr, "Do you need -o loop?\n");
- if (errno == ENOMEDIUM)
- fprintf(stderr,
- "This filesystem needs at least 1 OST\n");
- if (errno == ENOENT) {
- fprintf(stderr, "Is the MGS specification correct?\n");
- fprintf(stderr, "Is the filesystem name correct?\n");
- fprintf(stderr, "If upgrading, is the copied client log"
- " valid? (see upgrade docs)\n");
- }
- if (errno == EALREADY)
- fprintf(stderr, "The target service is already running."
- " (%s)\n", mop.mo_usource);
- if (errno == ENXIO)
- fprintf(stderr, "The target service failed to start "
- "(bad config log?) (%s). "
- "See /var/log/messages.\n", mop.mo_usource);
- if (errno == EIO)
- fprintf(stderr, "Is the MGS running?\n");
- if (errno == EADDRINUSE)
- fprintf(stderr, "The target service's index is already "
- "in use. (%s)\n", mop.mo_usource);
- if (errno == EINVAL) {
- fprintf(stderr, "This may have multiple causes.\n");
- if (cli)
- fprintf(stderr, "Is '%s' the correct filesystem"
- " name?\n", cli);
- fprintf(stderr, "Are the mount options correct?\n");
- fprintf(stderr, "Check the syslog for more info.\n");
- }
-
- /* May as well try to clean up loop devs */
+ if (errno == EBUSY)
+ fprintf(stderr,
+ "Is the backend filesystem mounted?\n Check /etc/mtab and /proc/mounts\n");
+ if (errno == ENODEV)
+ fprintf(stderr,
+ "Are the lustre modules loaded?\n Check /etc/modprobe.conf and /proc/filesystems\n");
+ if (errno == ENOTBLK)
+ fprintf(stderr, "Do you need -o loop?\n");
+ if (errno == ENOMEDIUM)
+ fprintf(stderr,
+ "This filesystem needs at least 1 OST\n");
+ if (errno == ENOENT) {
+ fprintf(stderr, "Is the MGS specification correct?\n");
+ fprintf(stderr, "Is the filesystem name correct?\n");
+ fprintf(stderr,
+ "If upgrading, is the copied client log valid? (see upgrade docs)\n");
+ }
+ if (errno == EALREADY)
+ fprintf(stderr,
+ "The target service is already running. (%s)\n",
+ mop.mo_usource);
+ if (errno == ENXIO)
+ fprintf(stderr,
+ "The target service failed to start (bad config log?) (%s). See /var/log/messages.\n",
+ mop.mo_usource);
+ if (errno == EIO)
+ fprintf(stderr, "Is the MGS running?\n");
+ if (errno == EADDRINUSE)
+ fprintf(stderr,
+ "The target service's index is already in use. (%s)\n",
+ mop.mo_usource);
+ if (errno == EINVAL) {
+ fprintf(stderr, "This may have multiple causes.\n");
+ if (cli)
+ fprintf(stderr,
+ "Is '%s' the correct filesystem name?\n",
+ cli);
+ fprintf(stderr, "Are the mount options correct?\n");
+ fprintf(stderr, "Check the syslog for more info.\n");
+ }
+
+ /* May as well try to clean up loop devs */
if (strncmp(mop.mo_usource, "/dev/loop", 9) == 0) {
- char cmd[256];
- int ret;
+ char cmd[256];
+ int ret;
+
sprintf(cmd, "/sbin/losetup -d %s", mop.mo_usource);
- if ((ret = system(cmd)) < 0)
- rc = errno;
- else if (ret > 0)
- rc = WEXITSTATUS(ret);
- }
-
- } else if (!mop.mo_nomtab) {
- rc = update_mtab_entry(mop.mo_usource, mop.mo_target, "lustre",
- mop.mo_orig_options, 0,0,0);
- }
-
- free(optcopy);
+ if ((ret = system(cmd)) < 0)
+ rc = errno;
+ else if (ret > 0)
+ rc = WEXITSTATUS(ret);
+ }
+
+ } else {
+ /*
+ * Deal with utab just for client. Note that we ignore
+ * the return value here since it is not worth to fail
+ * mount by prevent some rare cases
+ */
+ if (strstr(mop.mo_usource, ":/") != NULL)
+ update_utab_entry(&mop);
+ if (!mop.mo_nomtab) {
+ rc = update_mtab_entry(mop.mo_usource, mop.mo_target,
+ "lustre", mop.mo_orig_options,
+ 0, 0, 0);
+ }
+ }
+
+out_osd:
+#ifdef HAVE_SERVER_SUPPORT
+ if (!client)
+ osd_fini();
+#endif
+out_options:
+ free(options);
+
+out_mo_source:
/* mo_usource should be freed, but we can rely on the kernel */
free(mop.mo_source);
- return rc;
+ return rc;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff