/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
- * Author: Peter J. Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Robert Read <rread@clusterfs.com>
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/utils/liblustreapi.c
+ *
+ * Author: Peter J. Braam <braam@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Author: Robert Read <rread@clusterfs.com>
*/
-
/* for O_DIRECTORY */
+#ifndef _GNU_SOURCE
#define _GNU_SOURCE
+#endif
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include <linux/types.h>
+#include <sys/syscall.h>
+#include <sys/xattr.h>
+#include <fnmatch.h>
+#include <glob.h>
+#ifdef HAVE_LINUX_UNISTD_H
#include <linux/unistd.h>
+#else
+#include <unistd.h>
+#endif
+#include <poll.h>
#include <liblustre.h>
-#include <linux/obd.h>
-#include <linux/lustre_lib.h>
-#include <lustre/lustre_user.h>
-#include <linux/obd_lov.h>
+#include <lnet/lnetctl.h>
+#include <obd.h>
+#include <lustre_lib.h>
+#include <obd_lov.h>
+#include <lustre/liblustreapi.h>
+
+static unsigned llapi_dir_filetype_table[] = {
+ [DT_UNKNOWN]= 0,
+ [DT_FIFO]= S_IFIFO,
+ [DT_CHR] = S_IFCHR,
+ [DT_DIR] = S_IFDIR,
+ [DT_BLK] = S_IFBLK,
+ [DT_REG] = S_IFREG,
+ [DT_LNK] = S_IFLNK,
+ [DT_SOCK]= S_IFSOCK,
+#if defined(DT_DOOR) && defined(S_IFDOOR)
+ [DT_DOOR]= S_IFDOOR,
+#endif
+};
-#include <portals/ptlctl.h>
+#if defined(DT_DOOR) && defined(S_IFDOOR)
+static const int DT_MAX = DT_DOOR;
+#else
+static const int DT_MAX = DT_SOCK;
+#endif
+
+static unsigned llapi_filetype_dir_table[] = {
+ [0]= DT_UNKNOWN,
+ [S_IFIFO]= DT_FIFO,
+ [S_IFCHR] = DT_CHR,
+ [S_IFDIR] = DT_DIR,
+ [S_IFBLK] = DT_BLK,
+ [S_IFREG] = DT_REG,
+ [S_IFLNK] = DT_LNK,
+ [S_IFSOCK]= DT_SOCK,
+#if defined(DT_DOOR) && defined(S_IFDOOR)
+ [S_IFDOOR]= DT_DOOR,
+#endif
+};
+
+#if defined(DT_DOOR) && defined(S_IFDOOR)
+static const int S_IFMAX = DT_DOOR;
+#else
+static const int S_IFMAX = DT_SOCK;
+#endif
+
+/* liblustreapi message level */
+static int llapi_msg_level = LLAPI_MSG_MAX;
+
+void llapi_msg_set_level(int level)
+{
+ /* ensure level is in the good range */
+ if (level < LLAPI_MSG_OFF)
+ llapi_msg_level = LLAPI_MSG_OFF;
+ else if (level > LLAPI_MSG_MAX)
+ llapi_msg_level = LLAPI_MSG_MAX;
+ else
+ llapi_msg_level = level;
+}
-static void err_msg(char *fmt, ...)
+void llapi_err(int level, char *fmt, ...)
{
va_list args;
- int tmp_errno = errno;
+ int tmp_errno = abs(errno);
+
+ if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
+ return;
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
- fprintf(stderr, ": %s (%d)\n", strerror(tmp_errno), tmp_errno);
+
+ if (level & LLAPI_MSG_NO_ERRNO)
+ fprintf(stderr, "\n");
+ else
+ fprintf(stderr, ": %s (%d)\n", strerror(tmp_errno), tmp_errno);
}
-int llapi_file_create(char *name, long stripe_size, int stripe_offset,
- int stripe_count, int stripe_pattern)
+#define llapi_err_noerrno(level, fmt, a...) \
+ llapi_err((level) | LLAPI_MSG_NO_ERRNO, fmt, ## a)
+
+void llapi_printf(int level, char *fmt, ...)
{
- struct lov_user_md lum = { 0 };
- int fd, rc = 0;
+ va_list args;
- /* Initialize IOCTL striping pattern structure */
- lum.lmm_magic = LOV_USER_MAGIC;
- lum.lmm_pattern = stripe_pattern;
- lum.lmm_stripe_size = stripe_size;
- lum.lmm_stripe_count = stripe_count;
- lum.lmm_stripe_offset = stripe_offset;
+ if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
+ return;
- fd = open(name, O_CREAT | O_RDWR | O_LOV_DELAY_CREATE, 0644);
- if (errno == EISDIR)
- fd = open(name, O_DIRECTORY | O_RDONLY);
+ va_start(args, fmt);
+ vfprintf(stdout, fmt, args);
+ va_end(args);
+}
- if (fd < 0) {
- err_msg("unable to open '%s'",name);
- rc = -errno;
- return rc;
+/**
+ * size_units is unchanged if no specifier used
+ */
+int parse_size(char *optarg, unsigned long long *size,
+ unsigned long long *size_units, int bytes_spec)
+{
+ char *end;
+
+ *size = strtoull(optarg, &end, 0);
+
+ if (*end != '\0') {
+ if ((*end == 'b') && *(end+1) == '\0' &&
+ (*size & (~0ULL << (64 - 9))) == 0 &&
+ !bytes_spec) {
+ *size <<= 9;
+ *size_units = 1 << 9;
+ } else if ((*end == 'b') && *(end+1) == '\0' &&
+ bytes_spec) {
+ *size_units = 1;
+ } else if ((*end == 'k' || *end == 'K') &&
+ *(end+1) == '\0' && (*size &
+ (~0ULL << (64 - 10))) == 0) {
+ *size <<= 10;
+ *size_units = 1 << 10;
+ } else if ((*end == 'm' || *end == 'M') &&
+ *(end+1) == '\0' && (*size &
+ (~0ULL << (64 - 20))) == 0) {
+ *size <<= 20;
+ *size_units = 1 << 20;
+ } else if ((*end == 'g' || *end == 'G') &&
+ *(end+1) == '\0' && (*size &
+ (~0ULL << (64 - 30))) == 0) {
+ *size <<= 30;
+ *size_units = 1 << 30;
+ } else if ((*end == 't' || *end == 'T') &&
+ *(end+1) == '\0' && (*size &
+ (~0ULL << (64 - 40))) == 0) {
+ *size <<= 40;
+ *size_units = 1ULL << 40;
+ } else if ((*end == 'p' || *end == 'P') &&
+ *(end+1) == '\0' && (*size &
+ (~0ULL << (64 - 50))) == 0) {
+ *size <<= 50;
+ *size_units = 1ULL << 50;
+ } else if ((*end == 'e' || *end == 'E') &&
+ *(end+1) == '\0' && (*size &
+ (~0ULL << (64 - 60))) == 0) {
+ *size <<= 60;
+ *size_units = 1ULL << 60;
+ } else {
+ return -1;
+ }
}
- if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, &lum)) {
- char *errmsg = "stripe already set";
- if (errno != EEXIST && errno != EALREADY)
- errmsg = strerror(errno);
-
- fprintf(stderr, "error on ioctl for '%s' (%d): %s\n",
- name, fd, errmsg);
- rc = -errno;
- }
- if (close(fd) < 0) {
- err_msg("error on close for '%s' (%d)", name, fd);
- if (rc == 0)
- rc = -errno;
- }
- return rc;
+ return 0;
}
-int op_create_dir(char *name, int stripe_count)
+int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
+ int stripe_count, int stripe_pattern)
{
- struct ll_user_mkdir_stripe lums = { 0 };
- int fd, rc = 0;
- char *dot = ".";
- char *dirname;
-
- dirname = rindex(name, '/');
- if (!dirname) {
- dirname = "name";
- name = dot;
- } else {
- *dirname = 0;
- dirname++;
- }
- lums.lums_nstripes = stripe_count;
- lums.lums_namelen = strlen(dirname);
- lums.lums_name = dirname;
- /* XXX: Probably users might want to specify permissions as well? */
- lums.lums_mode = 0755;
-
- fd = open(name, O_RDONLY|O_DIRECTORY);
- if (name != dot)
- *(dirname-1) = '/';
- if (fd < 0) {
- err_msg("unable to open '%s'",name);
- rc = -errno;
- return rc;
+ int page_size;
+
+ /* 64 KB is the largest common page size I'm aware of (on ia64), but
+ * check the local page size just in case. */
+ page_size = LOV_MIN_STRIPE_SIZE;
+ if (getpagesize() > page_size) {
+ page_size = getpagesize();
+ llapi_err_noerrno(LLAPI_MSG_WARN,
+ "warning: your page size (%u) is "
+ "larger than expected (%u)", page_size,
+ LOV_MIN_STRIPE_SIZE);
}
-
- if (ioctl(fd, LL_IOC_MDC_MKDIRSTRIPE, &lums)) {
- char *errmsg = strerror(errno);
-
- fprintf(stderr, "error on ioctl for '%s' (%d): %s\n",
- name, fd, errmsg);
- rc = -errno;
+ if (stripe_size < 0 || (stripe_size & (LOV_MIN_STRIPE_SIZE - 1))) {
+ llapi_err(LLAPI_MSG_ERROR, "error: bad stripe_size %lu, "
+ "must be an even multiple of %d bytes",
+ stripe_size, page_size);
+ return -EINVAL;
}
- if (close(fd) < 0) {
- err_msg("error on close for '%s' (%d)", name, fd);
- if (rc == 0)
- rc = -errno;
+ if (stripe_offset < -1 || stripe_offset > MAX_OBD_DEVICES) {
+ errno = -EINVAL;
+ llapi_err(LLAPI_MSG_ERROR, "error: bad stripe offset %d",
+ stripe_offset);
+ return -EINVAL;
}
- return rc;
-}
-
-/* short term backwards compat only */
-int op_create_file(char *name, long stripe_size, int stripe_offset,
- int stripe_count)
-{
- return llapi_file_create(name, stripe_size, stripe_offset,
- stripe_count, 0);
-}
-
-struct find_param {
- int recursive;
- int verbose;
- int quiet;
- struct obd_uuid *obduuid;
- int lumlen;
- struct lov_user_md *lum;
- int got_uuids;
- int obdindex;
- __u32 *obdgens;
-};
-
-/* XXX Max obds per lov currently hardcoded to 1000 in lov/lov_obd.c */
-#define MAX_LOV_UUID_COUNT 1000
-#define OBD_NOT_FOUND (-1)
-
-static int prepare_find(struct find_param *param)
-{
- param->lumlen = lov_mds_md_size(MAX_LOV_UUID_COUNT);
- if ((param->lum = malloc(param->lumlen)) == NULL) {
- err_msg("unable to allocate %d bytes of memory for ioctl",
- param->lumlen);
- return ENOMEM;
+ if (stripe_count < -1 || stripe_count > LOV_MAX_STRIPE_COUNT) {
+ errno = -EINVAL;
+ llapi_err(LLAPI_MSG_ERROR, "error: bad stripe count %d",
+ stripe_count);
+ return -EINVAL;
+ }
+ if (stripe_size >= (1ULL << 32)){
+ errno = -EINVAL;
+ llapi_err(LLAPI_MSG_ERROR, "warning: stripe size larger than 4G"
+ " is not currently supported and would wrap");
+ return -EINVAL;
}
-
- param->got_uuids = 0;
- param->obdindex = OBD_NOT_FOUND;
-
return 0;
}
-static void cleanup_find(struct find_param *param)
+static int find_target_obdpath(char *fsname, char *path)
{
- if (param->obduuid)
- free(param->obduuid);
- if (param->lum)
- free(param->lum);
+ glob_t glob_info;
+ char pattern[PATH_MAX + 1];
+ int rc;
+
+ snprintf(pattern, PATH_MAX,
+ "/proc/fs/lustre/lov/%s-*/target_obd",
+ fsname);
+ rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
+ if (rc == GLOB_NOMATCH)
+ return -ENODEV;
+ else if (rc)
+ return -EINVAL;
+
+ strcpy(path, glob_info.gl_pathv[0]);
+ globfree(&glob_info);
+ return 0;
}
-int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, __u32 *obdgens,
- int *ost_count)
+static int find_poolpath(char *fsname, char *poolname, char *poolpath)
{
- struct obd_ioctl_data data = { 0, };
- struct lov_desc desc = { 0, };
- char *buf = NULL;
- int max_ost_count, rc;
-
- max_ost_count = (OBD_MAX_IOCTL_BUFFER - size_round(sizeof(data)) -
- size_round(sizeof(desc))) /
- (sizeof(*uuidp) + sizeof(*obdgens));
- if (max_ost_count > *ost_count)
- max_ost_count = *ost_count;
-
- data.ioc_inllen1 = sizeof(desc);
- data.ioc_inlbuf1 = (char *)&desc;
- data.ioc_inllen2 = size_round(max_ost_count * sizeof(*uuidp));
- data.ioc_inlbuf2 = (char *)uuidp;
- data.ioc_inllen3 = size_round(max_ost_count * sizeof(*obdgens));
- data.ioc_inlbuf3 = (char *)obdgens;
-
- desc.ld_tgt_count = max_ost_count;
-
- if (obd_ioctl_pack(&data, &buf, OBD_MAX_IOCTL_BUFFER)) {
- fprintf(stderr, "internal buffer error packing\n");
- rc = EINVAL;
- goto out;
- }
-
- rc = ioctl(fd, OBD_IOC_LOV_GET_CONFIG, buf);
- if (rc) {
- err_msg("error getting LOV config");
- rc = errno;
- goto out;
- }
-
- if (obd_ioctl_unpack(&data, buf, OBD_MAX_IOCTL_BUFFER)) {
- fprintf(stderr, "invalid reply from ioctl");
- rc = EINVAL;
- goto out;
- }
+ glob_t glob_info;
+ char pattern[PATH_MAX + 1];
+ int rc;
- *ost_count = desc.ld_tgt_count;
-out:
- free(buf);
+ snprintf(pattern, PATH_MAX,
+ "/proc/fs/lustre/lov/%s-*/pools/%s",
+ fsname, poolname);
+ rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
+ /* If no pools, make sure the lov is available */
+ if ((rc == GLOB_NOMATCH) &&
+ (find_target_obdpath(fsname, poolpath) == -ENODEV))
+ return -ENODEV;
+ if (rc)
+ return -EINVAL;
+ strcpy(poolpath, glob_info.gl_pathv[0]);
+ globfree(&glob_info);
return 0;
}
-static int setup_obd_uuids(DIR *dir, char *dname, struct find_param *param)
+/*
+ * if pool is NULL, search ostname in target_obd
+ * if pool is not NULL:
+ * if pool not found returns errno < 0
+ * if ostname is NULL, returns 1 if pool is not empty and 0 if pool empty
+ * if ostname is not NULL, returns 1 if OST is in pool and 0 if not
+ */
+int llapi_search_ost(char *fsname, char *poolname, char *ostname)
{
- struct obd_uuid uuids[1024], *uuidp;
- __u32 obdgens[1024], *genp;
-
- int obdcount = 1024;
- int rc, i;
-
- param->got_uuids = 1;
+ FILE *fd;
+ char buffer[PATH_MAX + 1];
+ int len = 0, rc;
- rc = llapi_lov_get_uuids(dirfd(dir), uuids, obdgens, &obdcount);
- if (rc != 0)
- return (param->obduuid ? rc : 0);
+ if (ostname != NULL)
+ len = strlen(ostname);
- if (obdcount == 0)
- return 0;
+ if (poolname == NULL)
+ rc = find_target_obdpath(fsname, buffer);
+ else
+ rc = find_poolpath(fsname, poolname, buffer);
+ if (rc)
+ return rc;
- if (param->obduuid) {
- for (i = 0, uuidp = uuids; i < obdcount; i++, uuidp++) {
- if (strncmp(param->obduuid->uuid, uuidp->uuid,
- sizeof(*uuidp)) == 0) {
- param->obdindex = i;
- break;
+ if ((fd = fopen(buffer, "r")) == NULL)
+ return -EINVAL;
+
+ while (fgets(buffer, sizeof(buffer), fd) != NULL) {
+ if (poolname == NULL) {
+ char *ptr;
+ /* Search for an ostname in the list of OSTs
+ Line format is IDX: fsname-OSTxxxx_UUID STATUS */
+ ptr = strchr(buffer, ' ');
+ if ((ptr != NULL) &&
+ (strncmp(ptr + 1, ostname, len) == 0)) {
+ fclose(fd);
+ return 1;
+ }
+ } else {
+ /* Search for an ostname in a pool,
+ (or an existing non-empty pool if no ostname) */
+ if ((ostname == NULL) ||
+ (strncmp(buffer, ostname, len) == 0)) {
+ fclose(fd);
+ return 1;
}
}
- if (param->obdindex == OBD_NOT_FOUND) {
- printf("unknown obduuid: %s\n", param->obduuid->uuid);
- return EINVAL;
- }
- } else if (!param->quiet) {
-
- printf("OBDS:\tobdidx\t\tobdgen\t\t obduuid\n");
- uuidp = uuids;
- genp = obdgens;
- for (i = 0; i < obdcount; i++, uuidp++, genp++) {
- if (obd_uuid_empty(uuidp))
- continue;
- printf("\t%6u\t%14u\t\t %s\n", i, *genp, uuidp->uuid);
- }
}
+ fclose(fd);
return 0;
}
-void lov_dump_user_lmm_v1(struct lov_user_md_v1 *lum, char *dname, char *fname,
- int obdindex, int quiet, int header, int body)
+int llapi_file_open_pool(const char *name, int flags, int mode,
+ unsigned long long stripe_size, int stripe_offset,
+ int stripe_count, int stripe_pattern, char *pool_name)
{
- int i, obdstripe = 0;
+ struct lov_user_md_v3 lum = { 0 };
+ int fd, rc = 0;
+ int isdir = 0;
- if (obdindex != OBD_NOT_FOUND) {
- for (i = 0; i < lum->lmm_stripe_count; i++) {
- if (obdindex == lum->lmm_objects[i].l_ost_idx) {
- printf("%s/%s\n", dname, fname);
- obdstripe = 1;
- break;
+ /* Make sure we have a good pool */
+ if (pool_name != NULL) {
+ char fsname[MAX_OBD_NAME + 1], *ptr;
+
+ if (llapi_search_fsname(name, fsname)) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "'%s' is not on a Lustre filesystem", name);
+ return -EINVAL;
+ }
+
+ /* in case user gives the full pool name <fsname>.<poolname>,
+ * strip the fsname */
+ ptr = strchr(pool_name, '.');
+ if (ptr != NULL) {
+ *ptr = '\0';
+ if (strcmp(pool_name, fsname) != 0) {
+ *ptr = '.';
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Pool '%s' is not on filesystem '%s'",
+ pool_name, fsname);
+ return -EINVAL;
}
+ pool_name = ptr + 1;
}
- } else if (!quiet) {
- printf("%s/%s\n", dname, fname);
- obdstripe = 1;
- }
- /* if it's a directory */
- if (*fname == '\0') {
- if (header && (obdstripe == 1)) {
- printf("count: %d, size: %d, offset: %d\n\n",
- lum->lmm_stripe_count, lum->lmm_stripe_size,
- (short int)lum->lmm_stripe_offset);
+ /* Make sure the pool exists and is non-empty */
+ if ((rc = llapi_search_ost(fsname, pool_name, NULL)) < 1) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "pool '%s.%s' %s", fsname, pool_name,
+ rc == 0 ? "has no OSTs" : "does not exist");
+ return -EINVAL;
}
- return;
}
- if (header && (obdstripe == 1)) {
- printf("lmm_magic: 0x%08X\n", lum->lmm_magic);
- printf("lmm_object_gr: "LPX64"\n", lum->lmm_object_gr);
- printf("lmm_object_id: "LPX64"\n", lum->lmm_object_id);
- printf("lmm_stripe_count: %u\n", (int)lum->lmm_stripe_count);
- printf("lmm_stripe_size: %u\n", lum->lmm_stripe_size);
- printf("lmm_stripe_pattern: %x\n", lum->lmm_pattern);
+ fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
+ if (fd < 0 && errno == EISDIR) {
+ fd = open(name, O_DIRECTORY | O_RDONLY);
+ isdir++;
}
- if (body) {
- if ((!quiet) && (obdstripe == 1))
- printf("\tobdidx\t\t obdgen\t\t objid\t\tobjid\t\t group\n");
-
- for (i = 0; i < lum->lmm_stripe_count; i++) {
- int idx = lum->lmm_objects[i].l_ost_idx;
- long long oid = lum->lmm_objects[i].l_object_id;
- int gen = lum->lmm_objects[i].l_ost_gen;
- long long gr = lum->lmm_objects[i].l_object_gr;
- if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
- printf("\t%6u\t%14u\t%14llu\t%#13llx\t%14lld%s\n",
- idx, gen, oid, oid, gr,
- obdindex == idx ? " *" : "");
- }
- printf("\n");
+ if (fd < 0) {
+ rc = -errno;
+ llapi_err(LLAPI_MSG_ERROR, "unable to open '%s'", name);
+ return rc;
}
-}
-void llapi_lov_dump_user_lmm(struct find_param *param, char *dname, char *fname)
-{
- switch(*(__u32 *)param->lum) { /* lum->lmm_magic */
- case LOV_USER_MAGIC_V1:
- lov_dump_user_lmm_v1(param->lum, dname, fname, param->obdindex,
- param->quiet, param->verbose,
- (param->verbose || !param->obduuid));
- break;
- default:
- printf("unknown lmm_magic: 0x%08X\n", *(__u32 *)param->lum);
- return;
+ if ((rc = llapi_stripe_limit_check(stripe_size, stripe_offset,
+ stripe_count, stripe_pattern)) != 0){
+ errno = rc;
+ goto out;
}
-}
-
-int llapi_file_get_stripe(char *path, struct lov_user_md *lum)
-{
- char *dname, *fname;
- int fd, rc = 0;
- fname = strrchr(path, '/');
-
- /* It should be a file (or other non-directory) */
- if (fname == NULL) {
- dname = (char *)malloc(2);
- if (dname == NULL)
- return ENOMEM;
- strcpy(dname, ".");
- fname = path;
+ /* Initialize IOCTL striping pattern structure */
+ lum.lmm_magic = LOV_USER_MAGIC_V3;
+ lum.lmm_pattern = stripe_pattern;
+ lum.lmm_stripe_size = stripe_size;
+ lum.lmm_stripe_count = stripe_count;
+ lum.lmm_stripe_offset = stripe_offset;
+ if (pool_name != NULL) {
+ strncpy(lum.lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
} else {
- dname = (char *)malloc(fname - path + 1);
- if (dname == NULL)
- return ENOMEM;
- strncpy(dname, path, fname - path);
- dname[fname - path + 1] = '\0';
- fname++;
+ /* If no pool is specified at all, use V1 request */
+ lum.lmm_magic = LOV_USER_MAGIC_V1;
}
- if ((fd = open(dname, O_RDONLY)) == -1) {
- free(dname);
- return errno;
- }
+ if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, &lum)) {
+ char *errmsg = "stripe already set";
+ rc = -errno;
+ if (errno != EEXIST && errno != EALREADY)
+ errmsg = strerror(errno);
- strncpy((char *)lum, fname, sizeof(*lum));
- if (ioctl(fd, IOC_MDC_GETSTRIPE, (void *)lum) == -1) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error on ioctl "LPX64" for '%s' (%d): %s",
+ (__u64)LL_IOC_LOV_SETSTRIPE, name, fd,errmsg);
+ }
+out:
+ if (rc) {
close(fd);
- free(dname);
- return errno;
+ fd = rc;
}
- if (close(fd) == -1)
- rc = errno;
-
- free(dname);
-
- return rc;
+ return fd;
}
-/* short term backwards compat only */
-int op_get_file_stripe(char *path, struct lov_user_md *lum)
+int llapi_file_open(const char *name, int flags, int mode,
+ unsigned long long stripe_size, int stripe_offset,
+ int stripe_count, int stripe_pattern)
{
- return llapi_file_get_stripe(path, lum);
+ return llapi_file_open_pool(name, flags, mode, stripe_size,
+ stripe_offset, stripe_count,
+ stripe_pattern, NULL);
}
-static int process_file(DIR *dir, char *dname, char *fname,
- struct find_param *param)
+int llapi_file_create(const char *name, unsigned long long stripe_size,
+ int stripe_offset, int stripe_count, int stripe_pattern)
{
- int rc;
-
- strncpy((char *)param->lum, fname, param->lumlen);
+ int fd;
- rc = ioctl(dirfd(dir), IOC_MDC_GETSTRIPE, (void *)param->lum);
- if (rc) {
- if (errno == ENODATA) {
- if (!param->obduuid && !param->quiet)
- fprintf(stderr,
- "%s/%s has no stripe info\n",
- dname, fname);
- rc = 0;
- } else if (errno == EISDIR) {
- fprintf(stderr, "process_file on directory %s/%s!\n",
- dname, fname);
- /* add fname to directory list; */
- rc = errno;
- } else {
- err_msg("IOC_MDC_GETSTRIPE ioctl failed");
- rc = errno;
- }
- return rc;
- }
-
- llapi_lov_dump_user_lmm(param, dname, fname);
+ fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
+ stripe_offset, stripe_count, stripe_pattern,
+ NULL);
+ if (fd < 0)
+ return fd;
+ close(fd);
return 0;
}
-/* some 64bit libcs implement readdir64() by calling sys_getdents(). the
- * kernel's sys_getdents() doesn't return d_type. */
-unsigned char handle_dt_unknown(char *parent, char *entry)
+int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
+ int stripe_offset, int stripe_count,
+ int stripe_pattern, char *pool_name)
{
- char path[PATH_MAX + 1];
- int fd, ret;
+ int fd;
- ret = snprintf(path, PATH_MAX, "%s/%s", parent, entry);
- if (ret >= PATH_MAX)
- return DT_UNKNOWN;
+ fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
+ stripe_offset, stripe_count, stripe_pattern,
+ pool_name);
+ if (fd < 0)
+ return fd;
- fd = open(path, O_DIRECTORY|O_RDONLY);
- if (fd < 0) {
- if (errno == ENOTDIR)
- return DT_REG; /* kind of a lie */
- return DT_UNKNOWN;
- }
close(fd);
- return DT_DIR;
+ return 0;
}
-static int process_dir(DIR *dir, char *dname, struct find_param *param)
+/*
+ * Find the fsname, the full path, and/or an open fd.
+ * Either the fsname or path must not be NULL
+ */
+#define WANT_PATH 0x1
+#define WANT_FSNAME 0x2
+#define WANT_FD 0x4
+#define WANT_INDEX 0x8
+#define WANT_ERROR 0x10
+static int get_root_path(int want, char *fsname, int *outfd, char *path,
+ int index)
{
- struct dirent64 *dirp;
- DIR *subdir;
- char path[1024];
- int rc;
-
- if (!param->got_uuids) {
- rc = setup_obd_uuids(dir, dname, param);
- if (rc)
- return rc;
- }
-
- /* retrieve dir's stripe info */
- strncpy((char *)param->lum, dname, param->lumlen);
- rc = ioctl(dirfd(dir), LL_IOC_LOV_GETSTRIPE, (void *)param->lum);
- if (rc) {
- if (errno == ENODATA) {
- if (!param->obduuid && param->verbose)
- printf("%s/%s has no stripe info\n", dname, "");
- rc = 0;
- } else {
- err_msg("IOC_MDC_GETSTRIPE ioctl failed");
- return errno;
- }
- } else {
- llapi_lov_dump_user_lmm(param, dname, "");
+ struct mntent mnt;
+ char buf[PATH_MAX], mntdir[PATH_MAX];
+ char *ptr;
+ FILE *fp;
+ int idx = 0, len = 0, mntlen, fd;
+ int rc = -ENODEV;
+
+ /* get the mount point */
+ fp = setmntent(MOUNTED, "r");
+ if (fp == NULL) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "setmntent(%s) failed: %s:", MOUNTED,
+ strerror (errno));
+ return -EIO;
}
+ while (1) {
+ if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
+ break;
- /* Handle the contents of the directory */
- while ((dirp = readdir64(dir)) != NULL) {
- if (!strcmp(dirp->d_name, ".") || !strcmp(dirp->d_name, ".."))
+ if (!llapi_is_lustre_mnt(&mnt))
continue;
- if (dirp->d_type == DT_UNKNOWN)
- dirp->d_type = handle_dt_unknown(dname, dirp->d_name);
+ if ((want & WANT_INDEX) && (idx++ != index))
+ continue;
- switch (dirp->d_type) {
- case DT_UNKNOWN:
- err_msg("\"%s\" is UNKNOWN type %d", dirp->d_name,
- dirp->d_type);
- /* If we cared we could stat the file to determine
- * type and continue on here, but we don't since we
- * know d_type should be valid for lustre and this
- * tool only makes sense for lustre filesystems. */
- return EINVAL;
+ mntlen = strlen(mnt.mnt_dir);
+ ptr = strrchr(mnt.mnt_fsname, '/');
+ if (!ptr && !len) {
+ rc = -EINVAL;
break;
- case DT_DIR:
- if (!param->recursive)
- break;
- strcpy(path, dname);
- strcat(path, "/");
- strcat(path, dirp->d_name);
- subdir = opendir(path);
- if (subdir == NULL) {
- err_msg("\"%.40s\" opendir failed", path);
- return errno;
- }
- rc = process_dir(subdir, path, param);
- closedir(subdir);
- if (rc)
- return rc;
- break;
- case DT_REG:
- rc = process_file(dir, dname, dirp->d_name, param);
- if (rc)
- return rc;
- break;
- default:
+ }
+ ptr++;
+
+ /* Check the fsname for a match, if given */
+ if (!(want & WANT_FSNAME) && fsname != NULL &&
+ (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0))
+ continue;
+
+ /* If the path isn't set return the first one we find */
+ if (path == NULL || strlen(path) == 0) {
+ strcpy(mntdir, mnt.mnt_dir);
+ if ((want & WANT_FSNAME) && fsname != NULL)
+ strcpy(fsname, ptr);
+ rc = 0;
break;
+ /* Otherwise find the longest matching path */
+ } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
+ (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
+ strcpy(mntdir, mnt.mnt_dir);
+ len = mntlen;
+ if ((want & WANT_FSNAME) && fsname != NULL)
+ strcpy(fsname, ptr);
+ rc = 0;
}
}
-
- return 0;
+ endmntent(fp);
+
+ /* Found it */
+ if (rc == 0) {
+ if ((want & WANT_PATH) && path != NULL)
+ strcpy(path, mntdir);
+ if (want & WANT_FD) {
+ fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
+ if (fd < 0) {
+ perror("open");
+ rc = -errno;
+ } else {
+ *outfd = fd;
+ }
+ }
+ } else if (want & WANT_ERROR)
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "can't find fs root for '%s': %d",
+ (want & WANT_PATH) ? fsname : path, rc);
+ return rc;
}
-static int process_path(char *path, struct find_param *param)
+/*
+ * search lustre mounts
+ *
+ * Calling this function will return to the user the mount point, mntdir, and
+ * the file system name, fsname, if the user passed a buffer to this routine.
+ *
+ * The user inputs are pathname and index. If the pathname is supplied then
+ * the value of the index will be ignored. The pathname will return data if
+ * the pathname is located on a lustre mount. Index is used to pick which
+ * mount point you want in the case of multiple mounted lustre file systems.
+ * See function lfs_osts in lfs.c for a example of the index use.
+ */
+int llapi_search_mounts(const char *pathname, int index, char *mntdir,
+ char *fsname)
{
- char *fname, *dname;
- DIR *dir;
- int rc = 0;
+ int want = WANT_PATH, idx = -1;
- fname = strrchr(path, '/');
- if (fname != NULL && fname[1] == '\0') {
- /* Trailing '/', it must be a dir */
- *fname = '\0';
- dir = opendir(path);
- if (dir == NULL) {
- err_msg("\"%.40s\" opendir failed", path);
- rc = errno;
- } else {
- rc = process_dir(dir, path, param);
- closedir(dir);
- }
- } else if ((dir = opendir(path)) != NULL) {
- /* No trailing '/', but it is still a dir */
- rc = process_dir(dir, path, param);
- closedir(dir);
- } else {
- /* It must be a file (or other non-directory) */
- if (fname == NULL) {
- dname = ".";
- fname = path;
- } else {
- *fname = '\0';
- fname++;
- dname = path;
- }
- dir = opendir(dname);
- if (dir == NULL) {
- err_msg("\"%.40s\" opendir failed", dname);
- rc = errno;
- } else {
- if (!param->got_uuids)
- rc = setup_obd_uuids(dir, dname, param);
- if (rc == 0)
- rc = process_file(dir, dname, fname, param);
- closedir(dir);
+ if (!pathname || pathname[0] == '\0') {
+ want |= WANT_INDEX;
+ idx = index;
+ } else
+ strcpy(mntdir, pathname);
+
+ if (fsname)
+ want |= WANT_FSNAME;
+ return get_root_path(want, fsname, NULL, mntdir, idx);
+}
+
+/* Given a path, find the corresponding Lustre fsname */
+int llapi_search_fsname(const char *pathname, char *fsname)
+{
+ char *path = (char*)pathname, buf[PATH_MAX + 1];
+
+ if (pathname[0] != '/') { /* Need a absolute path */
+ memset(buf, '\0', sizeof(buf));
+ if (realpath(pathname, buf) == NULL) {
+ llapi_err(LLAPI_MSG_ERROR, "pathname '%s' cannot expand",
+ pathname);
+ return -EINVAL;
}
+ path = buf;
}
-
- return rc;
+ return get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL,
+ path, -1);
}
-int llapi_find(char *path, struct obd_uuid *obduuid, int recursive,
- int verbose, int quiet)
+/* return the first file matching this pattern */
+static int first_match(char *pattern, char *buffer)
{
- struct find_param param;
- int ret = 0;
+ glob_t glob_info;
- memset(¶m, 0, sizeof(param));
- param.recursive = recursive;
- param.verbose = verbose;
- param.quiet = quiet;
- if (obduuid) {
- param.obduuid = malloc(sizeof(*obduuid));
- if (param.obduuid == NULL) {
- ret = ENOMEM;
- goto out;
- }
- memcpy(param.obduuid, obduuid, sizeof(*obduuid));
+ if (glob(pattern, GLOB_BRACE, NULL, &glob_info))
+ return -ENOENT;
+
+ if (glob_info.gl_pathc < 1) {
+ globfree(&glob_info);
+ return -ENOENT;
}
- ret = prepare_find(¶m);
- if (ret)
- goto out;
+ strcpy(buffer, glob_info.gl_pathv[0]);
- process_path(path, ¶m);
-out:
- cleanup_find(¶m);
- return ret;
+ globfree(&glob_info);
+ return 0;
}
-#define MAX_STRING_SIZE 128
-#define DEVICES_LIST "/proc/fs/lustre/devices"
+/*
+ * find the pool directory path under /proc
+ * (can be also used to test if a fsname is known)
+ */
+static int poolpath(char *fsname, char *pathname, char *pool_pathname)
+{
+ int rc = 0;
+ char pattern[PATH_MAX + 1];
+ char buffer[PATH_MAX];
-int llapi_target_check(int type_num, char **obd_type, char *dir)
+ if (fsname == NULL) {
+ rc = llapi_search_fsname(pathname, buffer);
+ if (rc != 0)
+ return rc;
+ fsname = buffer;
+ strcpy(pathname, fsname);
+ }
+
+ snprintf(pattern, PATH_MAX, "/proc/fs/lustre/lov/%s-*/pools", fsname);
+ rc = first_match(pattern, buffer);
+ if (rc)
+ return rc;
+
+ /* in fsname test mode, pool_pathname is NULL */
+ if (pool_pathname != NULL)
+ strcpy(pool_pathname, buffer);
+
+ return 0;
+}
+
+/**
+ * Get the list of pool members.
+ * \param poolname string of format \<fsname\>.\<poolname\>
+ * \param members caller-allocated array of char*
+ * \param list_size size of the members array
+ * \param buffer caller-allocated buffer for storing OST names
+ * \param buffer_size size of the buffer
+ *
+ * \return number of members retrieved for this pool
+ * \retval -error failure
+ */
+int llapi_get_poolmembers(const char *poolname, char **members,
+ int list_size, char *buffer, int buffer_size)
{
- char buf[MAX_STRING_SIZE];
- FILE *fp = fopen(DEVICES_LIST, "r");
+ char fsname[PATH_MAX + 1];
+ char *pool, *tmp;
+ char pathname[PATH_MAX + 1];
+ char path[PATH_MAX + 1];
+ char buf[1024];
+ FILE *fd;
int rc = 0;
- int i;
+ int nb_entries = 0;
+ int used = 0;
+
+ /* name is FSNAME.POOLNAME */
+ if (strlen(poolname) > PATH_MAX)
+ return -EOVERFLOW;
+ strcpy(fsname, poolname);
+ pool = strchr(fsname, '.');
+ if (pool == NULL)
+ return -EINVAL;
+
+ *pool = '\0';
+ pool++;
+
+ rc = poolpath(fsname, NULL, pathname);
+ if (rc != 0) {
+ errno = -rc;
+ llapi_err(LLAPI_MSG_ERROR, "Lustre filesystem '%s' not found",
+ fsname);
+ return rc;
+ }
- if (fp == NULL) {
- fprintf(stderr, "error: %s opening "DEVICES_LIST"\n",
- strerror(rc = errno));
+ llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
+ sprintf(path, "%s/%s", pathname, pool);
+ if ((fd = fopen(path, "r")) == NULL) {
+ llapi_err(LLAPI_MSG_ERROR, "Cannot open %s", path);
+ return -EINVAL;
+ }
+
+ rc = 0;
+ while (fgets(buf, sizeof(buf), fd) != NULL) {
+ if (nb_entries >= list_size) {
+ rc = -EOVERFLOW;
+ break;
+ }
+ /* remove '\n' */
+ if ((tmp = strchr(buf, '\n')) != NULL)
+ *tmp='\0';
+ if (used + strlen(buf) + 1 > buffer_size) {
+ rc = -EOVERFLOW;
+ break;
+ }
+
+ strcpy(buffer + used, buf);
+ members[nb_entries] = buffer + used;
+ used += strlen(buf) + 1;
+ nb_entries++;
+ rc = nb_entries;
+ }
+
+ fclose(fd);
+ return rc;
+}
+
+/**
+ * Get the list of pools in a filesystem.
+ * \param name filesystem name or path
+ * \param poollist caller-allocated array of char*
+ * \param list_size size of the poollist array
+ * \param buffer caller-allocated buffer for storing pool names
+ * \param buffer_size size of the buffer
+ *
+ * \return number of pools retrieved for this filesystem
+ * \retval -error failure
+ */
+int llapi_get_poollist(const char *name, char **poollist, int list_size,
+ char *buffer, int buffer_size)
+{
+ char fsname[PATH_MAX + 1], rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
+ char *ptr;
+ DIR *dir;
+ struct dirent pool;
+ struct dirent *cookie = NULL;
+ int rc = 0;
+ unsigned int nb_entries = 0;
+ unsigned int used = 0;
+ unsigned int i;
+
+ /* initilize output array */
+ for (i = 0; i < list_size; i++)
+ poollist[i] = NULL;
+
+ /* is name a pathname ? */
+ ptr = strchr(name, '/');
+ if (ptr != NULL) {
+ /* only absolute pathname is supported */
+ if (*name != '/')
+ return -EINVAL;
+ if (!realpath(name, rname)) {
+ rc = -errno;
+ llapi_err(LLAPI_MSG_ERROR, "invalid path '%s'", name);
+ return rc;
+ }
+
+ rc = poolpath(NULL, rname, pathname);
+ if (rc != 0) {
+ errno = -rc;
+ llapi_err(LLAPI_MSG_ERROR, "'%s' is not"
+ " a Lustre filesystem", name);
+ return rc;
+ }
+ strcpy(fsname, rname);
+ } else {
+ /* name is FSNAME */
+ strcpy(fsname, name);
+ rc = poolpath(fsname, NULL, pathname);
+ }
+ if (rc != 0) {
+ errno = -rc;
+ llapi_err(LLAPI_MSG_ERROR, "Lustre filesystem '%s' not found",
+ name);
return rc;
}
- while (fgets(buf, sizeof(buf), fp) != NULL) {
- char *obd_type_name = NULL;
- char *obd_name = NULL;
- char rawbuf[OBD_MAX_IOCTL_BUFFER];
- char *bufl = rawbuf;
- char *bufp = buf;
- int max = sizeof(rawbuf);
- struct obd_ioctl_data datal;
- struct obd_statfs osfs_buffer;
+ llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
+ if ((dir = opendir(pathname)) == NULL) {
+ llapi_err(LLAPI_MSG_ERROR, "Could not open pool list for '%s'",
+ name);
+ return -errno;
+ }
- while(bufp[0] == ' ')
- ++bufp;
+ while(1) {
+ rc = readdir_r(dir, &pool, &cookie);
- for(i = 0; i < 3; i++) {
- obd_type_name = strsep(&bufp, " ");
+ if (rc != 0) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "Error reading pool list for '%s'", name);
+ return -errno;
+ } else if ((rc == 0) && (cookie == NULL))
+ /* end of directory */
+ break;
+
+ /* ignore . and .. */
+ if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
+ continue;
+
+ /* check output bounds */
+ if (nb_entries >= list_size)
+ return -EOVERFLOW;
+
+ /* +2 for '.' and final '\0' */
+ if (used + strlen(pool.d_name) + strlen(fsname) + 2
+ > buffer_size)
+ return -EOVERFLOW;
+
+ sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
+ poollist[nb_entries] = buffer + used;
+ used += strlen(pool.d_name) + strlen(fsname) + 2;
+ nb_entries++;
+ }
+
+ closedir(dir);
+ return nb_entries;
+}
+
+/* wrapper for lfs.c and obd.c */
+int llapi_poollist(const char *name)
+{
+ /* list of pool names (assume that pool count is smaller
+ than OST count) */
+ char *list[FIND_MAX_OSTS];
+ char *buffer;
+ /* fsname-OST0000_UUID < 32 char, 1 per OST */
+ int bufsize = FIND_MAX_OSTS * 32;
+ int i, nb;
+
+ buffer = malloc(bufsize);
+ if (buffer == NULL)
+ return -ENOMEM;
+
+ if ((name[0] == '/') || (strchr(name, '.') == NULL))
+ /* name is a path or fsname */
+ nb = llapi_get_poollist(name, list, FIND_MAX_OSTS, buffer,
+ bufsize);
+ else
+ /* name is a pool name (<fsname>.<poolname>) */
+ nb = llapi_get_poolmembers(name, list, FIND_MAX_OSTS, buffer,
+ bufsize);
+
+ for (i = 0; i < nb; i++)
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
+
+ free(buffer);
+ return (nb < 0 ? nb : 0);
+}
+
+
+typedef int (semantic_func_t)(char *path, DIR *parent, DIR *d,
+ void *data, cfs_dirent_t *de);
+
+#define MAX_LOV_UUID_COUNT max(LOV_MAX_STRIPE_COUNT, 1000)
+#define OBD_NOT_FOUND (-1)
+
+static int common_param_init(struct find_param *param)
+{
+ param->lumlen = lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC_V3);
+ if ((param->lmd = malloc(sizeof(lstat_t) + param->lumlen)) == NULL) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: allocation of %d bytes for ioctl",
+ sizeof(lstat_t) + param->lumlen);
+ return -ENOMEM;
+ }
+
+ param->got_uuids = 0;
+ param->obdindexes = NULL;
+ param->obdindex = OBD_NOT_FOUND;
+ return 0;
+}
+
+static void find_param_fini(struct find_param *param)
+{
+ if (param->obdindexes)
+ free(param->obdindexes);
+
+ if (param->lmd)
+ free(param->lmd);
+}
+
+static int cb_common_fini(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ param->depth--;
+ return 0;
+}
+
+static DIR *opendir_parent(char *path)
+{
+ DIR *parent;
+ char *fname;
+ char c;
+
+ fname = strrchr(path, '/');
+ if (fname == NULL)
+ return opendir(".");
+
+ c = fname[1];
+ fname[1] = '\0';
+ parent = opendir(path);
+ fname[1] = c;
+ return parent;
+}
+
+int llapi_mds_getfileinfo(char *path, DIR *parent,
+ struct lov_user_mds_data *lmd)
+{
+ lstat_t *st = &lmd->lmd_st;
+ char *fname = strrchr(path, '/');
+ int ret = 0;
+
+ if (parent == NULL)
+ return -EINVAL;
+
+ fname = (fname == NULL ? path : fname + 1);
+ /* retrieve needed file info */
+ strncpy((char *)lmd, fname,
+ lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC));
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
+
+ if (ret) {
+ if (errno == ENOTTY) {
+ /* ioctl is not supported, it is not a lustre fs.
+ * Do the regular lstat(2) instead. */
+ ret = lstat_f(path, st);
+ if (ret) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: lstat failed for %s",
+ __func__, path);
+ return ret;
+ }
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ return -ENOENT;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: IOC_MDC_GETFILEINFO failed for %s",
+ __func__, path);
+ return ret;
}
- obd_name = strsep(&bufp, " ");
+ }
- memset(&osfs_buffer, 0, sizeof (osfs_buffer));
+ return 0;
+}
- memset(bufl, 0, sizeof(rawbuf));
- datal.ioc_pbuf1 = (char *)&osfs_buffer;
- datal.ioc_plen1 = sizeof(osfs_buffer);
+static int llapi_semantic_traverse(char *path, int size, DIR *parent,
+ semantic_func_t sem_init,
+ semantic_func_t sem_fini, void *data,
+ cfs_dirent_t *de)
+{
+ cfs_dirent_t *dent;
+ int len, ret;
+ DIR *d, *p = NULL;
+
+ ret = 0;
+ len = strlen(path);
+
+ d = opendir(path);
+ if (!d && errno != ENOTDIR) {
+ llapi_err(LLAPI_MSG_ERROR, "%s: Failed to open '%s'",
+ __func__, path);
+ return -EINVAL;
+ } else if (!d && !parent) {
+ /* ENOTDIR. Open the parent dir. */
+ p = opendir_parent(path);
+ if (!p)
+ GOTO(out, ret = -EINVAL);
+ }
- for (i = 0; i < type_num; i++)
- if (strcmp(obd_type_name, obd_type[i]) == 0) {
- datal.ioc_inlbuf1 = obd_name;
- datal.ioc_inllen1 = strlen(obd_name) + 1;
+ if (sem_init && (ret = sem_init(path, parent ?: p, d, data, de)))
+ goto err;
- obd_ioctl_pack(&datal,&bufl,max);
+ if (!d)
+ GOTO(out, ret = 0);
- rc = ioctl(dirfd(opendir(dir)), OBD_IOC_PING,
- bufl);
+ while ((dent = readdir64(d)) != NULL) {
+ ((struct find_param *)data)->have_fileinfo = 0;
- if (rc) {
- fprintf(stderr, "error: check %s: %s\n",
- obd_name, strerror(rc = errno));
- } else {
- printf("%s active.\n",obd_name);
- }
+ if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
+ continue;
+
+ /* Don't traverse .lustre directory */
+ if (!(strcmp(dent->d_name, dot_lustre_name)))
+ continue;
+
+ path[len] = 0;
+ if ((len + dent->d_reclen + 2) > size) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: string buffer is too small",
+ __func__);
+ break;
+ }
+ strcat(path, "/");
+ strcat(path, dent->d_name);
+
+ if (dent->d_type == DT_UNKNOWN) {
+ lstat_t *st = &((struct find_param *)data)->lmd->lmd_st;
+
+ ret = llapi_mds_getfileinfo(path, d,
+ ((struct find_param *)data)->lmd);
+ if (ret == 0) {
+ ((struct find_param *)data)->have_fileinfo = 1;
+ dent->d_type =
+ llapi_filetype_dir_table[st->st_mode &
+ S_IFMT];
+ }
+ if (ret == -ENOENT)
+ continue;
+ }
+
+ switch (dent->d_type) {
+ case DT_UNKNOWN:
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: '%s' is UNKNOWN type %d",
+ __func__, dent->d_name, dent->d_type);
+ break;
+ case DT_DIR:
+ ret = llapi_semantic_traverse(path, size, d, sem_init,
+ sem_fini, data, dent);
+ if (ret < 0)
+ goto out;
+ break;
+ default:
+ ret = 0;
+ if (sem_init) {
+ ret = sem_init(path, d, NULL, data, dent);
+ if (ret < 0)
+ goto out;
}
+ if (sem_fini && ret == 0)
+ sem_fini(path, d, NULL, data, dent);
+ }
+ }
+
+out:
+ path[len] = 0;
+
+ if (sem_fini)
+ sem_fini(path, parent, d, data, de);
+err:
+ if (d)
+ closedir(d);
+ if (p)
+ closedir(p);
+ return ret;
+}
+static int param_callback(char *path, semantic_func_t sem_init,
+ semantic_func_t sem_fini, struct find_param *param)
+{
+ int ret, len = strlen(path);
+ char *buf;
+
+ if (len > PATH_MAX) {
+ llapi_err(LLAPI_MSG_ERROR, "Path name '%s' is too long", path);
+ return -EINVAL;
}
- fclose(fp);
- return rc;
+
+ buf = (char *)malloc(PATH_MAX + 1);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = common_param_init(param);
+ if (ret)
+ goto out;
+ param->depth = 0;
+
+ strncpy(buf, path, PATH_MAX + 1);
+ ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
+ sem_fini, param, NULL);
+out:
+ find_param_fini(param);
+ free(buf);
+ return ret < 0 ? ret : 0;
}
-#undef MAX_STRING_SIZE
+int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
+{
+ int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
+ if (rc) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: can't get lov name.");
+ }
+ return rc;
+}
-int llapi_catinfo(char *dir, char *keyword, char *node_name)
+int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
{
- char raw[OBD_MAX_IOCTL_BUFFER];
- char out[LLOG_CHUNK_SIZE];
- char *buf = raw;
- struct obd_ioctl_data data;
- char key[30];
- DIR *root;
- int rc;
+ int fd, rc;
- sprintf(key, "%s", keyword);
- memset(raw, 0, sizeof(buf));
- memset(out, 0, sizeof(out));
- data.ioc_inlbuf1 = key;
- data.ioc_inllen1 = strlen(key) + 1;
- if (node_name) {
- data.ioc_inlbuf2 = node_name;
- data.ioc_inllen2 = strlen(node_name) + 1;
+ fd = open(path, O_RDONLY);
+ if (fd < 0) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error opening %s", path);
+ return rc;
}
- data.ioc_pbuf1 = out;
- data.ioc_plen1 = sizeof(out);
- rc = obd_ioctl_pack(&data, &buf, sizeof(raw));
+
+ rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
+
+ close(fd);
+
+ return rc;
+}
+
+/*
+ * If uuidp is NULL, return the number of available obd uuids.
+ * If uuidp is non-NULL, then it will return the uuids of the obds. If
+ * there are more OSTs then allocated to uuidp, then an error is returned with
+ * the ost_count set to number of available obd uuids.
+ */
+int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
+{
+ struct obd_uuid lov_name;
+ char buf[1024];
+ FILE *fp;
+ int rc = 0, index = 0;
+
+ /* Get the lov name */
+ rc = llapi_file_fget_lov_uuid(fd, &lov_name);
if (rc)
return rc;
- root = opendir(dir);
- if (root == NULL) {
- err_msg("open %s failed", dir);
- return errno;
+ /* Now get the ost uuids from /proc */
+ snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
+ lov_name.uuid);
+ fp = fopen(buf, "r");
+ if (fp == NULL) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: opening '%s'", buf);
+ return rc;
}
- rc = ioctl(dirfd(root), OBD_IOC_LLOG_CATINFO, buf);
- if (rc)
- err_msg("ioctl OBD_IOC_CATINFO failed");
- else
- fprintf(stdout, "%s", data.ioc_pbuf1);
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ if (uuidp && (index < *ost_count)) {
+ if (sscanf(buf, "%d: %s", &index, uuidp[index].uuid) <2)
+ break;
+ }
+ index++;
+ }
+
+ fclose(fp);
+
+ if (uuidp && (index >= *ost_count))
+ return -EOVERFLOW;
+
+ *ost_count = index;
+ return rc;
+}
+
+int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
+{
+ DIR *root;
+ int rc;
+
+ root = opendir(mnt);
+ if (!root) {
+ llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
+ return -1;
+ }
+
+ *count = is_mdt;
+ rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
closedir(root);
return rc;
}
-int llapi_is_lustre_mnttype(char *type)
+/* Check if user specified value matches a real uuid. Ignore _UUID,
+ * -osc-4ba41334, other trailing gunk in comparison.
+ * @param real_uuid ends in "_UUID"
+ * @param search_uuid may or may not end in "_UUID"
+ */
+int llapi_uuid_match(char *real_uuid, char *search_uuid)
+{
+ int cmplen = strlen(real_uuid);
+ int searchlen = strlen(search_uuid);
+
+ if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
+ cmplen -= 5;
+ if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
+ searchlen -= 5;
+
+ /* The UUIDs may legitimately be different lengths, if
+ * the system was upgraded from an older version. */
+ if (cmplen != searchlen)
+ return 0;
+
+ return (strncmp(search_uuid, real_uuid, cmplen) == 0);
+}
+
+/* Here, param->obduuid points to a single obduuid, the index of which is
+ * returned in param->obdindex */
+static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
+{
+ struct obd_uuid lov_uuid;
+ char uuid[sizeof(struct obd_uuid)];
+ char buf[1024];
+ FILE *fp;
+ int rc = 0, index;
+
+ if (param->got_uuids)
+ return rc;
+
+ /* Get the lov name */
+ rc = llapi_file_fget_lov_uuid(dirfd(dir), &lov_uuid);
+ if (rc) {
+ if (errno != ENOTTY) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: can't get lov name: %s", dname);
+ } else {
+ rc = 0;
+ }
+ return rc;
+ }
+
+ param->got_uuids = 1;
+
+ /* Now get the ost uuids from /proc */
+ snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
+ lov_uuid.uuid);
+ fp = fopen(buf, "r");
+ if (fp == NULL) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: opening '%s'", buf);
+ return rc;
+ }
+
+ if (!param->obduuid && !param->quiet && !param->obds_printed)
+ llapi_printf(LLAPI_MSG_NORMAL, "OBDS:\n");
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ if (sscanf(buf, "%d: %s", &index, uuid) < 2)
+ break;
+
+ if (param->obduuid) {
+ if (llapi_uuid_match(uuid, param->obduuid->uuid)) {
+ param->obdindex = index;
+ break;
+ }
+ } else if (!param->quiet && !param->obds_printed) {
+ /* Print everything */
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
+ }
+ }
+ param->obds_printed = 1;
+
+ fclose(fp);
+
+ if (param->obduuid && (param->obdindex == OBD_NOT_FOUND)) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: unknown obduuid: %s",
+ __func__, param->obduuid->uuid);
+ rc = -EINVAL;
+ }
+
+ return (rc);
+}
+
+/* In this case, param->obduuid will be an array of obduuids and
+ * obd index for all these obduuids will be returned in
+ * param->obdindexes */
+static int setup_obd_indexes(DIR *dir, struct find_param *param)
{
- return (strcmp(type,"lustre") == 0 || strcmp(type,"lustre_lite") == 0);
+ struct obd_uuid *uuids = NULL;
+ int obdcount = INIT_ALLOC_NUM_OSTS;
+ int ret, obd_valid = 0, obdnum, i;
+
+ uuids = (struct obd_uuid *)malloc(INIT_ALLOC_NUM_OSTS *
+ sizeof(struct obd_uuid));
+ if (uuids == NULL)
+ return -ENOMEM;
+
+retry_get_uuids:
+ ret = llapi_lov_get_uuids(dirfd(dir), uuids,
+ &obdcount);
+ if (ret) {
+ struct obd_uuid *uuids_temp;
+
+ if (ret == -EOVERFLOW) {
+ uuids_temp = realloc(uuids, obdcount *
+ sizeof(struct obd_uuid));
+ if (uuids_temp != NULL)
+ goto retry_get_uuids;
+ else
+ ret = -ENOMEM;
+ }
+
+ llapi_err(LLAPI_MSG_ERROR, "get ost uuid failed");
+ return ret;
+ }
+
+ param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex));
+ if (param->obdindexes == NULL)
+ return -ENOMEM;
+
+ for (obdnum = 0; obdnum < param->num_obds; obdnum++) {
+ for (i = 0; i < obdcount; i++) {
+ if (llapi_uuid_match(uuids[i].uuid,
+ param->obduuid[obdnum].uuid)) {
+ param->obdindexes[obdnum] = i;
+ obd_valid++;
+ break;
+ }
+ }
+ if (i >= obdcount) {
+ param->obdindexes[obdnum] = OBD_NOT_FOUND;
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: unknown obduuid: %s",
+ __func__,
+ param->obduuid[obdnum].uuid);
+ ret = -EINVAL;
+ }
+ }
+
+ if (obd_valid == 0)
+ param->obdindex = OBD_NOT_FOUND;
+ else
+ param->obdindex = obd_valid;
+
+ param->got_uuids = 1;
+
+ return ret;
+}
+
+int llapi_ostlist(char *path, struct find_param *param)
+{
+ DIR *dir;
+ int ret;
+
+ dir = opendir(path);
+ if (dir == NULL)
+ return -errno;
+
+ ret = setup_obd_uuid(dir, path, param);
+ closedir(dir);
+
+ return ret;
+}
+
+static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
+ struct lov_user_ost_data_v1 *objects,
+ int is_dir, int verbose, int depth,
+ char *pool_name)
+{
+ char *prefix = is_dir ? "" : "lmm_";
+ char nl = is_dir ? ' ' : '\n';
+
+ if (is_dir && lum->lmm_object_seq == LOV_OBJECT_GROUP_DEFAULT) {
+ lum->lmm_object_seq = LOV_OBJECT_GROUP_CLEAR;
+ if (verbose & VERBOSE_DETAIL)
+ llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
+ }
+
+ if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+
+ if ((verbose & VERBOSE_DETAIL) && !is_dir) {
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
+ lum->lmm_magic);
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: "LPX64"\n",
+ lum->lmm_object_seq);
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
+ lum->lmm_object_id);
+ }
+
+ if (verbose & VERBOSE_COUNT) {
+ if (verbose & ~VERBOSE_COUNT)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
+ prefix);
+ if (is_dir)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
+ lum->lmm_stripe_count ==
+ (typeof(lum->lmm_stripe_count))(-1) ? -1 :
+ lum->lmm_stripe_count, nl);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%hd%c",
+ (__s16)lum->lmm_stripe_count, nl);
+ }
+
+ if (verbose & VERBOSE_SIZE) {
+ if (verbose & ~VERBOSE_SIZE)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
+ prefix);
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c", lum->lmm_stripe_size,
+ nl);
+ }
+
+ if ((verbose & VERBOSE_DETAIL) && !is_dir) {
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_pattern: %x%c",
+ lum->lmm_pattern, nl);
+ }
+
+ if (verbose & VERBOSE_OFFSET) {
+ if (verbose & ~VERBOSE_OFFSET)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
+ prefix);
+ if (is_dir)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
+ lum->lmm_stripe_offset ==
+ (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
+ lum->lmm_stripe_offset, nl);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
+ objects[0].l_ost_idx, nl);
+ }
+
+ if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
+ if (verbose & ~VERBOSE_POOL)
+ llapi_printf(LLAPI_MSG_NORMAL, "%spool: ",
+ prefix);
+ llapi_printf(LLAPI_MSG_NORMAL, "%s%c", pool_name, nl);
+ }
+
+ if (is_dir && (verbose != VERBOSE_OBJID))
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
+}
+
+void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
+ struct lov_user_ost_data_v1 *objects,
+ char *path, int is_dir,
+ int obdindex, int depth, int header)
+{
+ int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
+
+ if (!obdstripe) {
+ for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
+ if (obdindex == objects[i].l_ost_idx) {
+ obdstripe = 1;
+ break;
+ }
+ }
+ }
+
+ if (obdstripe == 1)
+ lov_dump_user_lmm_header(lum, path, objects, is_dir, header, depth,
+ pool_name);
+
+ if (!is_dir && (header & VERBOSE_OBJID)) {
+ if (obdstripe == 1)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "\tobdidx\t\t objid\t\tobjid\t\t group\n");
+
+ for (i = 0; i < lum->lmm_stripe_count; i++) {
+ int idx = objects[i].l_ost_idx;
+ long long oid = objects[i].l_object_id;
+ long long gr = objects[i].l_object_seq;
+ if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "\t%6u\t%14llu\t%#13llx\t%14llu%s\n",
+ idx, oid, oid, gr,
+ obdindex == idx ? " *" : "");
+ }
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
+ }
+}
+
+void llapi_lov_dump_user_lmm(struct find_param *param,
+ char *path, int is_dir)
+{
+ switch(*(__u32 *)¶m->lmd->lmd_lmm) { /* lum->lmm_magic */
+ case LOV_USER_MAGIC_V1:
+ lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, NULL,
+ param->lmd->lmd_lmm.lmm_objects,
+ path, is_dir,
+ param->obdindex, param->maxdepth,
+ param->verbose);
+ break;
+ case LOV_USER_MAGIC_V3: {
+ char pool_name[LOV_MAXPOOLNAME + 1];
+ struct lov_user_ost_data_v1 *objects;
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
+
+ strncpy(pool_name, lmmv3->lmm_pool_name, LOV_MAXPOOLNAME);
+ pool_name[LOV_MAXPOOLNAME] = '\0';
+ objects = lmmv3->lmm_objects;
+ lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, pool_name,
+ objects, path, is_dir,
+ param->obdindex, param->maxdepth,
+ param->verbose);
+ break;
+ }
+ default:
+ llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
+ "(expecting one of %#x %#x %#x)\n",
+ *(__u32 *)¶m->lmd->lmd_lmm,
+ LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
+ return;
+ }
+}
+
+int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
+{
+ const char *fname;
+ char *dname;
+ int fd, rc = 0;
+
+ fname = strrchr(path, '/');
+
+ /* It should be a file (or other non-directory) */
+ if (fname == NULL) {
+ dname = (char *)malloc(2);
+ if (dname == NULL)
+ return ENOMEM;
+ strcpy(dname, ".");
+ fname = (char *)path;
+ } else {
+ dname = (char *)malloc(fname - path + 1);
+ if (dname == NULL)
+ return ENOMEM;
+ strncpy(dname, path, fname - path);
+ dname[fname - path] = '\0';
+ fname++;
+ }
+
+ if ((fd = open(dname, O_RDONLY)) == -1) {
+ rc = errno;
+ free(dname);
+ return rc;
+ }
+
+ strcpy((char *)lum, fname);
+ if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
+ rc = errno;
+
+ if (close(fd) == -1 && rc == 0)
+ rc = errno;
+
+ free(dname);
+
+ return rc;
+}
+
+int llapi_file_lookup(int dirfd, const char *name)
+{
+ struct obd_ioctl_data data = { 0 };
+ char rawbuf[8192];
+ char *buf = rawbuf;
+ int rc;
+
+ if (dirfd < 0 || name == NULL)
+ return -EINVAL;
+
+ data.ioc_version = OBD_IOCTL_VERSION;
+ data.ioc_len = sizeof(data);
+ data.ioc_inlbuf1 = (char *)name;
+ data.ioc_inllen1 = strlen(name) + 1;
+
+ rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
+ if (rc) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
+ name, rc);
+ return rc;
+ }
+
+ return ioctl(dirfd, IOC_MDC_LOOKUP, buf);
+}
+
+/* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
+ * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
+ *
+ * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
+ * The table below gives the answers for the specified parameters (value and
+ * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
+ * --------------------------------------
+ * 1 | file > limit; sign > 0 | -1 / -1 |
+ * 2 | file = limit; sign > 0 | ? / 1 |
+ * 3 | file < limit; sign > 0 | ? / 1 |
+ * 4 | file > limit; sign = 0 | -1 / -1 |
+ * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
+ * 6 | file < limit; sign = 0 | ? / -1 |
+ * 7 | file > limit; sign < 0 | 1 / 1 |
+ * 8 | file = limit; sign < 0 | ? / -1 |
+ * 9 | file < limit; sign < 0 | ? / -1 |
+ * --------------------------------------
+ * Note: 5th actually means that the value is within the interval
+ * (limit - margin, limit]. */
+static int find_value_cmp(unsigned int file, unsigned int limit, int sign,
+ int negopt, unsigned long long margin, int mds)
+{
+ int ret = -1;
+
+ if (sign > 0) {
+ if (file <= limit)
+ ret = mds ? 0 : 1;
+ } else if (sign == 0) {
+ if (file <= limit && file + margin >= limit)
+ ret = mds ? 0 : 1;
+ else if (file + margin <= limit)
+ ret = mds ? 0 : -1;
+ } else if (sign < 0) {
+ if (file >= limit)
+ ret = 1;
+ else if (mds)
+ ret = 0;
+ }
+
+ return negopt ? ~ret + 1 : ret;
+}
+
+/* Check if the file time matches all the given criteria (e.g. --atime +/-N).
+ * Return -1 or 1 if file timestamp does not or does match the given criteria
+ * correspondingly. Return 0 if the MDS time is being checked and there are
+ * attributes on OSTs and it is not yet clear if the timespamp matches.
+ *
+ * If 0 is returned, we need to do another RPC to the OSTs to obtain the
+ * updated timestamps. */
+static int find_time_check(lstat_t *st, struct find_param *param, int mds)
+{
+ int ret;
+ int rc = 0;
+
+ /* Check if file is accepted. */
+ if (param->atime) {
+ ret = find_value_cmp(st->st_atime, param->atime,
+ param->asign, param->exclude_atime,
+ 24 * 60 * 60, mds);
+ if (ret < 0)
+ return ret;
+ rc = ret;
+ }
+
+ if (param->mtime) {
+ ret = find_value_cmp(st->st_mtime, param->mtime,
+ param->msign, param->exclude_mtime,
+ 24 * 60 * 60, mds);
+ if (ret < 0)
+ return ret;
+
+ /* If the previous check matches, but this one is not yet clear,
+ * we should return 0 to do an RPC on OSTs. */
+ if (rc == 1)
+ rc = ret;
+ }
+
+ if (param->ctime) {
+ ret = find_value_cmp(st->st_ctime, param->ctime,
+ param->csign, param->exclude_ctime,
+ 24 * 60 * 60, mds);
+ if (ret < 0)
+ return ret;
+
+ /* If the previous check matches, but this one is not yet clear,
+ * we should return 0 to do an RPC on OSTs. */
+ if (rc == 1)
+ rc = ret;
+ }
+
+ return rc;
+}
+
+static int cb_find_init(char *path, DIR *parent, DIR *dir,
+ void *data, cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ int decision = 1; /* 1 is accepted; -1 is rejected. */
+ lstat_t *st = ¶m->lmd->lmd_st;
+ int lustre_fs = 1;
+ int checked_type = 0;
+ int ret = 0;
+
+ LASSERT(parent != NULL || dir != NULL);
+
+ param->lmd->lmd_lmm.lmm_stripe_count = 0;
+
+ /* If a regular expression is presented, make the initial decision */
+ if (param->pattern != NULL) {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+ ret = fnmatch(param->pattern, fname, 0);
+ if ((ret == FNM_NOMATCH && !param->exclude_pattern) ||
+ (ret == 0 && param->exclude_pattern))
+ goto decided;
+ }
+
+ /* See if we can check the file type from the dirent. */
+ if (param->type && de != NULL && de->d_type != DT_UNKNOWN &&
+ de->d_type < DT_MAX) {
+ checked_type = 1;
+ if (llapi_dir_filetype_table[de->d_type] == param->type) {
+ if (param->exclude_type)
+ goto decided;
+ } else {
+ if (!param->exclude_type)
+ goto decided;
+ }
+ }
+
+
+ /* If a time or OST should be checked, the decision is not taken yet. */
+ if (param->atime || param->ctime || param->mtime || param->obduuid ||
+ param->check_size)
+ decision = 0;
+
+ ret = 0;
+ /* Request MDS for the stat info. */
+ if (param->have_fileinfo == 0) {
+ if (dir) {
+ /* retrieve needed file info */
+ ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO,
+ (void *)param->lmd);
+ } else {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+
+ /* retrieve needed file info */
+ strncpy((char *)param->lmd, fname, param->lumlen);
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
+ (void *)param->lmd);
+ }
+ }
+
+ if (ret) {
+ if (errno == ENOTTY) {
+ /* ioctl is not supported, it is not a lustre fs.
+ * Do the regular lstat(2) instead. */
+ lustre_fs = 0;
+ ret = lstat_f(path, st);
+ if (ret) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: lstat failed for %s",
+ __func__, path);
+ return ret;
+ }
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto decided;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,"error: %s: %s failed for %s",
+ __func__, dir ? "LL_IOC_MDC_GETINFO" :
+ "IOC_MDC_GETFILEINFO", path);
+ return ret;
+ }
+ }
+
+ if (param->type && !checked_type) {
+ if ((st->st_mode & S_IFMT) == param->type) {
+ if (param->exclude_type)
+ goto decided;
+ } else {
+ if (!param->exclude_type)
+ goto decided;
+ }
+ }
+
+ /* Prepare odb. */
+ if (param->obduuid) {
+ if (lustre_fs && param->got_uuids &&
+ param->st_dev != st->st_dev) {
+ /* A lustre/lustre mount point is crossed. */
+ param->got_uuids = 0;
+ param->obds_printed = 0;
+ param->obdindex = OBD_NOT_FOUND;
+ }
+
+ if (lustre_fs && !param->got_uuids) {
+ ret = setup_obd_indexes(dir ? dir : parent, param);
+ if (ret)
+ return ret;
+
+ param->st_dev = st->st_dev;
+ } else if (!lustre_fs && param->got_uuids) {
+ /* A lustre/non-lustre mount point is crossed. */
+ param->got_uuids = 0;
+ param->obdindex = OBD_NOT_FOUND;
+ }
+ }
+
+ /* If an OBD UUID is specified but no one matches, skip this file. */
+ if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
+ goto decided;
+
+ /* If a OST UUID is given, and some OST matches, check it here. */
+ if (param->obdindex != OBD_NOT_FOUND) {
+ if (!S_ISREG(st->st_mode))
+ goto decided;
+
+ /* Only those files should be accepted, which have a
+ * stripe on the specified OST. */
+ if (!param->lmd->lmd_lmm.lmm_stripe_count) {
+ goto decided;
+ } else {
+ int i, j;
+ struct lov_user_ost_data_v1 *lmm_objects;
+
+ if (param->lmd->lmd_lmm.lmm_magic ==
+ LOV_USER_MAGIC_V3) {
+ struct lov_user_md_v3 *lmmv3 =
+ (void *)¶m->lmd->lmd_lmm;
+
+ lmm_objects = lmmv3->lmm_objects;
+ } else {
+ lmm_objects = param->lmd->lmd_lmm.lmm_objects;
+ }
+
+ for (i = 0;
+ i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
+ for (j = 0; j < param->num_obds; j++) {
+ if (param->obdindexes[j] ==
+ lmm_objects[i].l_ost_idx) {
+ if (param->exclude_obd)
+ goto decided;
+ goto obd_matches;
+ }
+ }
+ }
+
+ if (i == param->lmd->lmd_lmm.lmm_stripe_count) {
+ if (param->exclude_obd)
+ goto obd_matches;
+ goto decided;
+ }
+ }
+ }
+
+ if (param->check_uid) {
+ if (st->st_uid == param->uid) {
+ if (param->exclude_uid)
+ goto decided;
+ } else {
+ if (!param->exclude_uid)
+ goto decided;
+ }
+ }
+
+ if (param->check_gid) {
+ if (st->st_gid == param->gid) {
+ if (param->exclude_gid)
+ goto decided;
+ } else {
+ if (!param->exclude_gid)
+ goto decided;
+ }
+ }
+
+ if (param->check_pool) {
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
+
+ /* empty requested pool is taken as no pool search => V1 */
+ if (((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
+ (param->poolname[0] == '\0')) ||
+ ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
+ (strncmp(lmmv3->lmm_pool_name,
+ param->poolname, LOV_MAXPOOLNAME) == 0)) ||
+ ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
+ (strcmp(param->poolname, "*") == 0))) {
+ if (param->exclude_pool)
+ goto decided;
+ } else {
+ if (!param->exclude_pool)
+ goto decided;
+ }
+ }
+
+ /* Check the time on mds. */
+ if (!decision) {
+ int for_mds;
+
+ for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
+ param->lmd->lmd_lmm.lmm_stripe_count)
+ : 0;
+ decision = find_time_check(st, param, for_mds);
+ }
+
+obd_matches:
+ /* If file still fits the request, ask ost for updated info.
+ The regular stat is almost of the same speed as some new
+ 'glimpse-size-ioctl'. */
+ if (!decision && S_ISREG(st->st_mode) &&
+ param->lmd->lmd_lmm.lmm_stripe_count &&
+ (param->check_size ||param->atime || param->mtime || param->ctime)) {
+ if (param->obdindex != OBD_NOT_FOUND) {
+ /* Check whether the obd is active or not, if it is
+ * not active, just print the object affected by this
+ * failed ost
+ * */
+ struct obd_statfs stat_buf;
+ struct obd_uuid uuid_buf;
+
+ memset(&stat_buf, 0, sizeof(struct obd_statfs));
+ memset(&uuid_buf, 0, sizeof(struct obd_uuid));
+ ret = llapi_obd_statfs(path, LL_STATFS_LOV,
+ param->obdindex, &stat_buf,
+ &uuid_buf);
+ if (ret) {
+ if (ret == -ENODATA || ret == -ENODEV
+ || ret == -EIO)
+ errno = EIO;
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "obd_uuid: %s failed %s ",
+ param->obduuid->uuid,
+ strerror(errno));
+ goto print_path;
+ }
+ }
+ if (dir) {
+ ret = ioctl(dirfd(dir), IOC_LOV_GETINFO,
+ (void *)param->lmd);
+ } else if (parent) {
+ ret = ioctl(dirfd(parent), IOC_LOV_GETINFO,
+ (void *)param->lmd);
+ }
+
+ if (ret) {
+ if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto decided;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "%s: IOC_LOV_GETINFO on %s failed",
+ __func__, path);
+ return ret;
+ }
+ }
+
+ /* Check the time on osc. */
+ decision = find_time_check(st, param, 0);
+ if (decision == -1)
+ goto decided;
+ }
+
+ if (param->check_size)
+ decision = find_value_cmp(st->st_size, param->size,
+ param->size_sign, param->exclude_size,
+ param->size_units, 0);
+
+print_path:
+ if (decision != -1) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
+ if (param->zeroend)
+ llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
+ }
+
+decided:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
+
+ param->depth++;
+ return 0;
+}
+
+int llapi_find(char *path, struct find_param *param)
+{
+ return param_callback(path, cb_find_init, cb_common_fini, param);
+}
+
+/*
+ * Get MDT number that the file/directory inode referenced
+ * by the open fd resides on.
+ * Return 0 and mdtidx on success, or -ve errno.
+ */
+int llapi_file_fget_mdtidx(int fd, int *mdtidx)
+{
+ if (ioctl(fd, LL_IOC_GET_MDTIDX, &mdtidx) < 0)
+ return -errno;
+ return 0;
+}
+
+static int cb_get_mdt_index(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ int ret = 0;
+ int mdtidx;
+
+ LASSERT(parent != NULL || d != NULL);
+
+ if (d) {
+ ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
+ } else if (parent) {
+ int fd;
+
+ fd = open(path, O_RDONLY);
+ if (fd > 0) {
+ ret = llapi_file_fget_mdtidx(fd, &mdtidx);
+ close(fd);
+ } else {
+ ret = fd;
+ }
+ }
+
+ if (ret) {
+ if (errno == ENODATA) {
+ if (!param->obduuid)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "%s has no stripe info\n", path);
+ goto out;
+ } else if (errno == ENOTTY) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "%s: '%s' not on a Lustre fs?",
+ __func__, path);
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto out;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: LL_IOC_GET_MDTIDX failed for %s",
+ __func__, path);
+ }
+ return ret;
+ }
+
+ if (param->quiet)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%s MDT index: %d\n",
+ path, mdtidx);
+
+out:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
+
+ param->depth++;
+ return 0;
+}
+
+static int cb_getstripe(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ int ret = 0;
+
+ LASSERT(parent != NULL || d != NULL);
+
+ if (param->obduuid) {
+ param->quiet = 1;
+ ret = setup_obd_uuid(d ? d : parent, path, param);
+ if (ret)
+ return ret;
+ }
+
+ if (d) {
+ ret = ioctl(dirfd(d), LL_IOC_LOV_GETSTRIPE,
+ (void *)¶m->lmd->lmd_lmm);
+ } else if (parent) {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+
+ strncpy((char *)¶m->lmd->lmd_lmm, fname, param->lumlen);
+
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILESTRIPE,
+ (void *)¶m->lmd->lmd_lmm);
+ }
+
+ if (ret) {
+ if (errno == ENODATA) {
+ if (!param->obduuid)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "%s has no stripe info\n", path);
+ goto out;
+ } else if (errno == ENOTTY) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "%s: '%s' not on a Lustre fs?",
+ __func__, path);
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto out;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: %s failed for %s",
+ __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
+ "IOC_MDC_GETFILESTRIPE", path);
+ }
+
+ return ret;
+ }
+
+ if (!param->get_mdt_index)
+ llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
+
+out:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
+
+ param->depth++;
+ return 0;
+}
+
+int llapi_getstripe(char *path, struct find_param *param)
+{
+ return param_callback(path, param->get_mdt_index ?
+ cb_get_mdt_index : cb_getstripe,
+ cb_common_fini, param);
+}
+
+int llapi_obd_statfs(char *path, __u32 type, __u32 index,
+ struct obd_statfs *stat_buf,
+ struct obd_uuid *uuid_buf)
+{
+ int fd;
+ char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
+ char *rawbuf = raw;
+ struct obd_ioctl_data data = { 0 };
+ int rc = 0;
+
+ data.ioc_inlbuf1 = (char *)&type;
+ data.ioc_inllen1 = sizeof(__u32);
+ data.ioc_inlbuf2 = (char *)&index;
+ data.ioc_inllen2 = sizeof(__u32);
+ data.ioc_pbuf1 = (char *)stat_buf;
+ data.ioc_plen1 = sizeof(struct obd_statfs);
+ data.ioc_pbuf2 = (char *)uuid_buf;
+ data.ioc_plen2 = sizeof(struct obd_uuid);
+
+ if ((rc = obd_ioctl_pack(&data, &rawbuf, sizeof(raw))) != 0) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "llapi_obd_statfs: error packing ioctl data");
+ return rc;
+ }
+
+ fd = open(path, O_RDONLY);
+ if (errno == EISDIR)
+ fd = open(path, O_DIRECTORY | O_RDONLY);
+
+ if (fd < 0) {
+ rc = errno ? -errno : -EBADF;
+ llapi_err(LLAPI_MSG_ERROR, "error: %s: opening '%s'",
+ __func__, path);
+ return rc;
+ }
+ rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
+ if (rc)
+ rc = errno ? -errno : -EINVAL;
+
+ close(fd);
+ return rc;
+}
+
+#define MAX_STRING_SIZE 128
+#define DEVICES_LIST "/proc/fs/lustre/devices"
+
+int llapi_ping(char *obd_type, char *obd_name)
+{
+ char path[MAX_STRING_SIZE];
+ char buf[1];
+ int rc, fd;
+
+ snprintf(path, MAX_STRING_SIZE, "/proc/fs/lustre/%s/%s/ping",
+ obd_type, obd_name);
+
+ fd = open(path, O_WRONLY);
+ if (fd < 0) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error opening %s", path);
+ return rc;
+ }
+
+ rc = write(fd, buf, 1);
+ close(fd);
+
+ if (rc == 1)
+ return 0;
+ return rc;
+}
+
+int llapi_target_iterate(int type_num, char **obd_type,void *args,llapi_cb_t cb)
+{
+ char buf[MAX_STRING_SIZE];
+ FILE *fp = fopen(DEVICES_LIST, "r");
+ int i, rc = 0;
+
+ if (fp == NULL) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: opening "DEVICES_LIST);
+ return rc;
+ }
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ char *obd_type_name = NULL;
+ char *obd_name = NULL;
+ char *obd_uuid = NULL;
+ char *bufp = buf;
+ struct obd_ioctl_data datal = { 0, };
+ struct obd_statfs osfs_buffer;
+
+ while(bufp[0] == ' ')
+ ++bufp;
+
+ for(i = 0; i < 3; i++) {
+ obd_type_name = strsep(&bufp, " ");
+ }
+ obd_name = strsep(&bufp, " ");
+ obd_uuid = strsep(&bufp, " ");
+
+ memset(&osfs_buffer, 0, sizeof (osfs_buffer));
+
+ datal.ioc_pbuf1 = (char *)&osfs_buffer;
+ datal.ioc_plen1 = sizeof(osfs_buffer);
+
+ for (i = 0; i < type_num; i++) {
+ if (strcmp(obd_type_name, obd_type[i]) != 0)
+ continue;
+
+ cb(obd_type_name, obd_name, obd_uuid, args);
+ }
+ }
+ fclose(fp);
+ return rc;
+}
+
+static void do_target_check(char *obd_type_name, char *obd_name,
+ char *obd_uuid, void *args)
+{
+ int rc;
+
+ rc = llapi_ping(obd_type_name, obd_name);
+ if (rc == ENOTCONN) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
+ } else if (rc) {
+ llapi_err(LLAPI_MSG_ERROR, "error: check '%s'", obd_name);
+ } else {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
+ }
+}
+
+int llapi_target_check(int type_num, char **obd_type, char *dir)
+{
+ return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
+}
+
+#undef MAX_STRING_SIZE
+
+int llapi_catinfo(char *dir, char *keyword, char *node_name)
+{
+ char raw[OBD_MAX_IOCTL_BUFFER];
+ char out[LLOG_CHUNK_SIZE];
+ char *buf = raw;
+ struct obd_ioctl_data data = { 0 };
+ char key[30];
+ DIR *root;
+ int rc;
+
+ sprintf(key, "%s", keyword);
+ memset(raw, 0, sizeof(raw));
+ memset(out, 0, sizeof(out));
+ data.ioc_inlbuf1 = key;
+ data.ioc_inllen1 = strlen(key) + 1;
+ if (node_name) {
+ data.ioc_inlbuf2 = node_name;
+ data.ioc_inllen2 = strlen(node_name) + 1;
+ }
+ data.ioc_pbuf1 = out;
+ data.ioc_plen1 = sizeof(out);
+ rc = obd_ioctl_pack(&data, &buf, sizeof(raw));
+ if (rc)
+ return rc;
+
+ root = opendir(dir);
+ if (root == NULL) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "open %s failed", dir);
+ return rc;
+ }
+
+ rc = ioctl(dirfd(root), OBD_IOC_LLOG_CATINFO, buf);
+ if (rc)
+ llapi_err(LLAPI_MSG_ERROR, "ioctl OBD_IOC_CATINFO failed");
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", data.ioc_pbuf1);
+
+ closedir(root);
+ return rc;
+}
+
+/* Is this a lustre fs? */
+int llapi_is_lustre_mnttype(const char *type)
+{
+ return (strcmp(type, "lustre") == 0 || strcmp(type,"lustre_lite") == 0);
+}
+
+/* Is this a lustre client fs? */
+int llapi_is_lustre_mnt(struct mntent *mnt)
+{
+ return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
+ strstr(mnt->mnt_fsname, ":/") != NULL);
+}
+
+int llapi_quotacheck(char *mnt, int check_type)
+{
+ DIR *root;
+ int rc;
+
+ root = opendir(mnt);
+ if (!root) {
+ llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
+ return -1;
+ }
+
+ rc = ioctl(dirfd(root), LL_IOC_QUOTACHECK, check_type);
+
+ closedir(root);
+ return rc;
+}
+
+int llapi_poll_quotacheck(char *mnt, struct if_quotacheck *qchk)
+{
+ DIR *root;
+ int poll_intvl = 2;
+ int rc;
+
+ root = opendir(mnt);
+ if (!root) {
+ llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
+ return -1;
+ }
+
+ while (1) {
+ rc = ioctl(dirfd(root), LL_IOC_POLL_QUOTACHECK, qchk);
+ if (!rc)
+ break;
+ sleep(poll_intvl);
+ if (poll_intvl < 30)
+ poll_intvl *= 2;
+ }
+
+ closedir(root);
+ return rc;
+}
+
+int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
+{
+ DIR *root;
+ int rc;
+
+ root = opendir(mnt);
+ if (!root) {
+ llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
+ return -1;
+ }
+
+ rc = ioctl(dirfd(root), LL_IOC_QUOTACTL, qctl);
+
+ closedir(root);
+ return rc;
+}
+
+static int cb_quotachown(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ lstat_t *st;
+ int rc;
+
+ LASSERT(parent != NULL || d != NULL);
+
+ if (d) {
+ rc = ioctl(dirfd(d), LL_IOC_MDC_GETINFO,
+ (void *)param->lmd);
+ } else if (parent) {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+
+ strncpy((char *)param->lmd, fname, param->lumlen);
+ rc = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
+ (void *)param->lmd);
+ } else {
+ return 0;
+ }
+
+ if (rc) {
+ if (errno == ENODATA) {
+ if (!param->obduuid && !param->quiet)
+ llapi_err(LLAPI_MSG_ERROR,
+ "%s has no stripe info", path);
+ rc = 0;
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ rc = 0;
+ } else if (errno != EISDIR) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "%s ioctl failed for %s.",
+ d ? "LL_IOC_MDC_GETINFO" :
+ "IOC_MDC_GETFILEINFO", path);
+ }
+ return rc;
+ }
+
+ st = ¶m->lmd->lmd_st;
+
+ /* libc chown() will do extra check, and if the real owner is
+ * the same as the ones to set, it won't fall into kernel, so
+ * invoke syscall directly. */
+ rc = syscall(SYS_chown, path, -1, -1);
+ if (rc)
+ llapi_err(LLAPI_MSG_ERROR,"error: chown %s (%u,%u)", path);
+
+ rc = chmod(path, st->st_mode);
+ if (rc)
+ llapi_err(LLAPI_MSG_ERROR, "error: chmod %s (%hu)",
+ path, st->st_mode);
+
+ return rc;
+}
+
+int llapi_quotachown(char *path, int flag)
+{
+ struct find_param param;
+
+ memset(¶m, 0, sizeof(param));
+ param.recursive = 1;
+ param.verbose = 0;
+ param.quiet = 1;
+
+ return param_callback(path, cb_quotachown, NULL, ¶m);
+}
+
+#include <pwd.h>
+#include <grp.h>
+#include <mntent.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <ctype.h>
+
+static int rmtacl_notify(int ops)
+{
+ FILE *fp;
+ struct mntent *mnt;
+ int found = 0, fd, rc;
+
+ fp = setmntent(MOUNTED, "r");
+ if (fp == NULL) {
+ perror("setmntent");
+ return -1;
+ }
+
+ while (1) {
+ mnt = getmntent(fp);
+ if (!mnt)
+ break;
+
+ if (!llapi_is_lustre_mnt(mnt))
+ continue;
+
+ fd = open(mnt->mnt_dir, O_RDONLY | O_DIRECTORY);
+ if (fd < 0) {
+ perror("open");
+ return -1;
+ }
+
+ rc = ioctl(fd, LL_IOC_RMTACL, ops);
+ if (rc < 0) {
+ perror("ioctl");
+ return -1;
+ }
+
+ found++;
+ }
+ endmntent(fp);
+ return found;
+}
+
+static char *next_token(char *p, int div)
+{
+ if (p == NULL)
+ return NULL;
+
+ if (div)
+ while (*p && *p != ':' && !isspace(*p))
+ p++;
+ else
+ while (*p == ':' || isspace(*p))
+ p++;
+
+ return *p ? p : NULL;
+}
+
+static int rmtacl_name2id(char *name, int is_user)
+{
+ if (is_user) {
+ struct passwd *pw;
+
+ if ((pw = getpwnam(name)) == NULL)
+ return INVALID_ID;
+ else
+ return (int)(pw->pw_uid);
+ } else {
+ struct group *gr;
+
+ if ((gr = getgrnam(name)) == NULL)
+ return INVALID_ID;
+ else
+ return (int)(gr->gr_gid);
+ }
+}
+
+static int isodigit(int c)
+{
+ return (c >= '0' && c <= '7') ? 1 : 0;
+}
+
+/*
+ * Whether the name is just digits string (uid/gid) already or not.
+ * Return value:
+ * 1: str is id
+ * 0: str is not id
+ */
+static int str_is_id(char *str)
+{
+ if (str == NULL)
+ return 0;
+
+ if (*str == '0') {
+ str++;
+ if (*str == 'x' || *str == 'X') { /* for Hex. */
+ if (!isxdigit(*(++str)))
+ return 0;
+
+ while (isxdigit(*(++str)));
+ } else if (isodigit(*str)) { /* for Oct. */
+ while (isodigit(*(++str)));
+ }
+ } else if (isdigit(*str)) { /* for Dec. */
+ while (isdigit(*(++str)));
+ }
+
+ return (*str == 0) ? 1 : 0;
+}
+
+typedef struct {
+ char *name;
+ int length;
+ int is_user;
+ int next_token;
+} rmtacl_name_t;
+
+#define RMTACL_OPTNAME(name) name, sizeof(name) - 1
+
+static rmtacl_name_t rmtacl_namelist[] = {
+ { RMTACL_OPTNAME("user:"), 1, 0 },
+ { RMTACL_OPTNAME("group:"), 0, 0 },
+ { RMTACL_OPTNAME("default:user:"), 1, 0 },
+ { RMTACL_OPTNAME("default:group:"), 0, 0 },
+ /* for --tabular option */
+ { RMTACL_OPTNAME("user"), 1, 1 },
+ { RMTACL_OPTNAME("group"), 0, 1 },
+ { 0 }
+};
+
+static int rgetfacl_output(char *str)
+{
+ char *start = NULL, *end = NULL;
+ int is_user = 0, n, id;
+ char c;
+ rmtacl_name_t *rn;
+
+ if (str == NULL)
+ return -1;
+
+ for (rn = rmtacl_namelist; rn->name; rn++) {
+ if(strncmp(str, rn->name, rn->length) == 0) {
+ if (!rn->next_token)
+ start = str + rn->length;
+ else
+ start = next_token(str + rn->length, 0);
+ is_user = rn->is_user;
+ break;
+ }
+ }
+
+ end = next_token(start, 1);
+ if (end == NULL || start == end) {
+ n = printf("%s", str);
+ return n;
+ }
+
+ c = *end;
+ *end = 0;
+ id = rmtacl_name2id(start, is_user);
+ if (id == INVALID_ID) {
+ if (str_is_id(start)) {
+ *end = c;
+ n = printf("%s", str);
+ } else
+ return -1;
+ } else if ((id == NOBODY_UID && is_user) ||
+ (id == NOBODY_GID && !is_user)) {
+ *end = c;
+ n = printf("%s", str);
+ } else {
+ *end = c;
+ *start = 0;
+ n = printf("%s%d%s", str, id, end);
+ }
+ return n;
+}
+
+static int child_status(int status)
+{
+ return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
+}
+
+static int do_rmtacl(int argc, char *argv[], int ops, int (output_func)(char *))
+{
+ pid_t pid = 0;
+ int fd[2], status;
+ FILE *fp;
+ char buf[PIPE_BUF];
+
+ if (output_func) {
+ if (pipe(fd) < 0) {
+ perror("pipe");
+ return -1;
+ }
+
+ if ((pid = fork()) < 0) {
+ perror("fork");
+ close(fd[0]);
+ close(fd[1]);
+ return -1;
+ } else if (!pid) {
+ /* child process redirects its output. */
+ close(fd[0]);
+ close(1);
+ if (dup2(fd[1], 1) < 0) {
+ perror("dup2");
+ close(fd[1]);
+ return -1;
+ }
+ } else {
+ close(fd[1]);
+ }
+ }
+
+ if (!pid) {
+ status = rmtacl_notify(ops);
+ if (status < 0)
+ return -1;
+
+ exit(execvp(argv[0], argv));
+ }
+
+ /* the following is parent process */
+ if ((fp = fdopen(fd[0], "r")) == NULL) {
+ perror("fdopen");
+ kill(pid, SIGKILL);
+ close(fd[0]);
+ return -1;
+ }
+
+ while (fgets(buf, PIPE_BUF, fp) != NULL) {
+ if (output_func(buf) < 0)
+ fprintf(stderr, "WARNING: unexpected error!\n[%s]\n",
+ buf);
+ }
+ fclose(fp);
+ close(fd[0]);
+
+ if (waitpid(pid, &status, 0) < 0) {
+ perror("waitpid");
+ return -1;
+ }
+
+ return child_status(status);
+}
+
+int llapi_lsetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_LSETFACL, NULL);
+}
+
+int llapi_lgetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_LGETFACL, NULL);
+}
+
+int llapi_rsetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_RSETFACL, NULL);
+}
+
+int llapi_rgetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_RGETFACL, rgetfacl_output);
+}
+
+int llapi_cp(int argc, char *argv[])
+{
+ int rc;
+
+ rc = rmtacl_notify(RMT_RSETFACL);
+ if (rc < 0)
+ return -1;
+
+ exit(execvp(argv[0], argv));
+}
+
+int llapi_ls(int argc, char *argv[])
+{
+ int rc;
+
+ rc = rmtacl_notify(RMT_LGETFACL);
+ if (rc < 0)
+ return -1;
+
+ exit(execvp(argv[0], argv));
+}
+
+/* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
+ * format must have %s%s, buf must be > 16
+ * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
+ * then buf = "lustre-MDT0000"
+ */
+static int get_mdtname(char *name, char *format, char *buf)
+{
+ char suffix[]="-MDT0000";
+ int len = strlen(name);
+
+ if ((len > 5) && (strncmp(name + len - 5, "_UUID", 5) == 0)) {
+ name[len - 5] = '\0';
+ len -= 5;
+ }
+
+ if (len > 8) {
+ if ((len <= 16) && strncmp(name + len - 8, "-MDT", 4) == 0) {
+ suffix[0] = '\0';
+ } else {
+ /* Not enough room to add suffix */
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "MDT name too long |%s|", name);
+ return -EINVAL;
+ }
+ }
+
+ return sprintf(buf, format, name, suffix);
+}
+
+/** ioctl on filsystem root, with mdtindex sent as data
+ * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
+ * \param mdtidxp pointer to integer within data to be filled in with the
+ * mdt index (0 if no mdt is specified). NULL won't be filled.
+ */
+static int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
+ int want_error)
+{
+ char fsname[20];
+ char *ptr;
+ int fd, index, rc;
+
+ /* Take path, fsname, or MDTname. Assume MDT0000 in the former cases.
+ Open root and parse mdt index. */
+ if (mdtname[0] == '/') {
+ index = 0;
+ rc = get_root_path(WANT_FD | want_error, NULL, &fd,
+ (char *)mdtname, -1);
+ } else {
+ if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
+ return -EINVAL;
+ ptr = fsname + strlen(fsname) - 8;
+ *ptr = '\0';
+ index = strtol(ptr + 4, NULL, 10);
+ rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
+ }
+ if (rc < 0) {
+ if (want_error)
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Can't open %s: %d\n", mdtname, rc);
+ return rc;
+ }
+
+ if (mdtidxp)
+ *mdtidxp = index;
+
+ rc = ioctl(fd, opc, data);
+ if (rc && want_error)
+ llapi_err(LLAPI_MSG_ERROR, "ioctl %d err %d", opc, rc);
+
+ close(fd);
+ return rc;
+}
+
+/****** Changelog API ********/
+
+static int changelog_ioctl(const char *mdtname, int opc, int id,
+ long long recno, int flags)
+{
+ struct ioc_changelog data;
+ int *idx;
+
+ data.icc_id = id;
+ data.icc_recno = recno;
+ data.icc_flags = flags;
+ idx = (int *)(&data.icc_mdtindex);
+
+ return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR);
+}
+
+#define CHANGELOG_PRIV_MAGIC 0xCA8E1080
+struct changelog_private {
+ int magic;
+ int flags;
+ lustre_kernelcomm kuc;
+};
+
+/** Start reading from a changelog
+ * @param priv Opaque private control structure
+ * @param flags Start flags (e.g. CHANGELOG_FLAG_BLOCK)
+ * @param device Report changes recorded on this MDT
+ * @param startrec Report changes beginning with this record number
+ * (just call llapi_changelog_fini when done; don't need an endrec)
+ */
+int llapi_changelog_start(void **priv, int flags, const char *device,
+ long long startrec)
+{
+ struct changelog_private *cp;
+ int rc;
+
+ /* Set up the receiver control struct */
+ cp = calloc(1, sizeof(*cp));
+ if (cp == NULL)
+ return -ENOMEM;
+
+ cp->magic = CHANGELOG_PRIV_MAGIC;
+ cp->flags = flags;
+
+ /* Set up the receiver */
+ rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */);
+ if (rc < 0)
+ goto out_free;
+
+ *priv = cp;
+
+ /* Tell the kernel to start sending */
+ rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
+ startrec, flags);
+ /* Only the kernel reference keeps the write side open */
+ close(cp->kuc.lk_wfd);
+ cp->kuc.lk_wfd = 0;
+ if (rc < 0) {
+ /* frees and clears priv */
+ llapi_changelog_fini(priv);
+ return rc;
+ }
+
+ return 0;
+
+out_free:
+ free(cp);
+ return rc;
+}
+
+/** Finish reading from a changelog */
+int llapi_changelog_fini(void **priv)
+{
+ struct changelog_private *cp = (struct changelog_private *)*priv;
+
+ if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
+ return -EINVAL;
+
+ libcfs_ukuc_stop(&cp->kuc);
+ free(cp);
+ *priv = NULL;
+ return 0;
+}
+
+/** Read the next changelog entry
+ * @param priv Opaque private control structure
+ * @param rech Changelog record handle; record will be allocated here
+ * @return 0 valid message received; rec is set
+ * <0 error code
+ * 1 EOF
+ */
+int llapi_changelog_recv(void *priv, struct changelog_rec **rech)
+{
+ struct changelog_private *cp = (struct changelog_private *)priv;
+ struct kuc_hdr *kuch;
+ int rc = 0;
+
+ if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
+ return -EINVAL;
+ if (rech == NULL)
+ return -EINVAL;
+ kuch = malloc(CR_MAXSIZE + sizeof(*kuch));
+ if (kuch == NULL)
+ return -ENOMEM;
+
+repeat:
+ rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch,
+ CR_MAXSIZE + sizeof(*kuch),
+ KUC_TRANSPORT_CHANGELOG);
+ if (rc < 0)
+ goto out_free;
+
+ if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) ||
+ ((kuch->kuc_msgtype != CL_RECORD) &&
+ (kuch->kuc_msgtype != CL_EOF))) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Unknown changelog message type %d:%d\n",
+ kuch->kuc_transport, kuch->kuc_msgtype);
+ rc = -EPROTO;
+ goto out_free;
+ }
+
+ if (kuch->kuc_msgtype == CL_EOF) {
+ if (cp->flags & CHANGELOG_FLAG_FOLLOW) {
+ /* Ignore EOFs */
+ goto repeat;
+ } else {
+ rc = 1;
+ goto out_free;
+ }
+ }
+
+ /* Our message is a changelog_rec. Use pointer math to skip
+ * kuch_hdr and point directly to the message payload.
+ */
+ *rech = (struct changelog_rec *)(kuch + 1);
+
+ return 0;
+
+out_free:
+ *rech = NULL;
+ free(kuch);
+ return rc;
+}
+
+/** Release the changelog record when done with it. */
+int llapi_changelog_free(struct changelog_rec **rech)
+{
+ if (*rech) {
+ /* We allocated memory starting at the kuc_hdr, but passed
+ * the consumer a pointer to the payload.
+ * Use pointer math to get back to the header.
+ */
+ struct kuc_hdr *kuch = (struct kuc_hdr *)*rech - 1;
+ free(kuch);
+ }
+ *rech = NULL;
+ return 0;
+}
+
+int llapi_changelog_clear(const char *mdtname, const char *idstr,
+ long long endrec)
+{
+ int id;
+
+ if (endrec < 0) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "can't purge negative records\n");
+ return -EINVAL;
+ }
+
+ id = strtol(idstr + strlen(CHANGELOG_USER_PREFIX), NULL, 10);
+ if ((id == 0) || (strncmp(idstr, CHANGELOG_USER_PREFIX,
+ strlen(CHANGELOG_USER_PREFIX)) != 0)) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "expecting id of the form '"CHANGELOG_USER_PREFIX
+ "<num>'; got '%s'\n", idstr);
+ return -EINVAL;
+ }
+
+ return changelog_ioctl(mdtname, OBD_IOC_CHANGELOG_CLEAR, id, endrec, 0);
+}
+
+int llapi_fid2path(const char *device, const char *fidstr, char *buf,
+ int buflen, long long *recno, int *linkno)
+{
+ struct lu_fid fid;
+ struct getinfo_fid2path *gf;
+ int rc;
+
+ while (*fidstr == '[')
+ fidstr++;
+
+ sscanf(fidstr, SFID, RFID(&fid));
+ if (!fid_is_sane(&fid)) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "bad FID format [%s], should be "DFID"\n",
+ fidstr, (__u64)1, 2, 0);
+ return -EINVAL;
+ }
+
+ gf = malloc(sizeof(*gf) + buflen);
+ if (gf == NULL)
+ return -ENOMEM;
+ gf->gf_fid = fid;
+ gf->gf_recno = *recno;
+ gf->gf_linkno = *linkno;
+ gf->gf_pathlen = buflen;
+
+ /* Take path or fsname */
+ rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
+ if (rc) {
+ llapi_err(LLAPI_MSG_ERROR, "ioctl err %d", rc);
+ } else {
+ memcpy(buf, gf->gf_path, gf->gf_pathlen);
+ *recno = gf->gf_recno;
+ *linkno = gf->gf_linkno;
+ }
+
+ free(gf);
+ return rc;
+}
+
+static int path2fid_from_lma(const char *path, lustre_fid *fid)
+{
+ char buf[512];
+ struct lustre_mdt_attrs *lma;
+ int rc;
+
+ rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
+ if (rc < 0)
+ return -errno;
+ lma = (struct lustre_mdt_attrs *)buf;
+ fid_le_to_cpu(fid, &lma->lma_self_fid);
+ return 0;
+}
+
+int llapi_path2fid(const char *path, lustre_fid *fid)
+{
+ int fd, rc;
+
+ memset(fid, 0, sizeof(*fid));
+ fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
+ if (fd < 0) {
+ if (errno == ELOOP) /* symbolic link */
+ return path2fid_from_lma(path, fid);
+ return -errno;
+ }
+
+ rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
+ if (rc == -EINVAL) /* char special device */
+ rc = path2fid_from_lma(path, fid);
+
+ close(fd);
+ return rc;
+}
+
+/****** HSM Copytool API ********/
+#define CT_PRIV_MAGIC 0xC0BE2001
+struct copytool_private {
+ int magic;
+ char *fsname;
+ lustre_kernelcomm kuc;
+ __u32 archives;
+};
+
+#include <libcfs/libcfs.h>
+
+/** Register a copytool
+ * @param[out] priv Opaque private control structure
+ * @param fsname Lustre filesystem
+ * @param flags Open flags, currently unused (e.g. O_NONBLOCK)
+ * @param archive_count
+ * @param archives Which archive numbers this copytool is responsible for
+ */
+int llapi_copytool_start(void **priv, char *fsname, int flags,
+ int archive_count, int *archives)
+{
+ struct copytool_private *ct;
+ int rc;
+
+ if (archive_count > 0 && archives == NULL) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "NULL archive numbers");
+ return -EINVAL;
+ }
+
+ ct = calloc(1, sizeof(*ct));
+ if (ct == NULL)
+ return -ENOMEM;
+
+ ct->fsname = malloc(strlen(fsname) + 1);
+ if (ct->fsname == NULL) {
+ rc = -ENOMEM;
+ goto out_err;
+ }
+ strcpy(ct->fsname, fsname);
+ ct->magic = CT_PRIV_MAGIC;
+ ct->archives = 0;
+ for (rc = 0; rc < archive_count; rc++) {
+ if (archives[rc] > sizeof(ct->archives)) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Maximum of %d archives supported",
+ sizeof(ct->archives));
+ goto out_err;
+ }
+ ct->archives |= 1 << archives[rc];
+ }
+ /* special case: if no archives specified, default to archive #0. */
+ if (ct->archives == 0)
+ ct->archives = 1;
+
+ rc = libcfs_ukuc_start(&ct->kuc, KUC_GRP_HSM);
+ if (rc < 0)
+ goto out_err;
+
+ /* Storing archive(s) in lk_data; see mdc_ioc_hsm_ct_start */
+ ct->kuc.lk_data = ct->archives;
+ rc = root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL,
+ WANT_ERROR);
+ /* Only the kernel reference keeps the write side open */
+ close(ct->kuc.lk_wfd);
+ ct->kuc.lk_wfd = 0;
+ if (rc < 0)
+ goto out_err;
+
+ *priv = ct;
+ return 0;
+
+out_err:
+ if (ct->fsname)
+ free(ct->fsname);
+ free(ct);
+ return rc;
+}
+
+/** Deregister a copytool */
+int llapi_copytool_fini(void **priv)
+{
+ struct copytool_private *ct = (struct copytool_private *)*priv;
+
+ if (!ct || (ct->magic != CT_PRIV_MAGIC))
+ return -EINVAL;
+
+ /* Tell the kernel to stop sending us messages */
+ ct->kuc.lk_flags = LK_FLG_STOP;
+ root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL, 0);
+
+ /* Shut down the kernelcomms */
+ libcfs_ukuc_stop(&ct->kuc);
+
+ free(ct->fsname);
+ free(ct);
+ *priv = NULL;
+ return 0;
+}
+
+/** Wait for the next hsm_action_list
+ * @param priv Opaque private control structure
+ * @param halh Action list handle, will be allocated here
+ * @param msgsize Number of bytes in the message, will be set here
+ * @return 0 valid message received; halh and msgsize are set
+ * <0 error code
+ */
+int llapi_copytool_recv(void *priv, struct hsm_action_list **halh, int *msgsize)
+{
+ struct copytool_private *ct = (struct copytool_private *)priv;
+ struct kuc_hdr *kuch;
+ struct hsm_action_list *hal;
+ int rc = 0;
+
+ if (!ct || (ct->magic != CT_PRIV_MAGIC))
+ return -EINVAL;
+ if (halh == NULL || msgsize == NULL)
+ return -EINVAL;
+
+ kuch = malloc(HAL_MAXSIZE + sizeof(*kuch));
+ if (kuch == NULL)
+ return -ENOMEM;
+
+ rc = libcfs_ukuc_msg_get(&ct->kuc, (char *)kuch,
+ HAL_MAXSIZE + sizeof(*kuch),
+ KUC_TRANSPORT_HSM);
+ if (rc < 0)
+ goto out_free;
+
+ /* Handle generic messages */
+ if (kuch->kuc_transport == KUC_TRANSPORT_GENERIC &&
+ kuch->kuc_msgtype == KUC_MSG_SHUTDOWN) {
+ rc = -ESHUTDOWN;
+ goto out_free;
+ }
+
+ if (kuch->kuc_transport != KUC_TRANSPORT_HSM ||
+ kuch->kuc_msgtype != HMT_ACTION_LIST) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Unknown HSM message type %d:%d\n",
+ kuch->kuc_transport, kuch->kuc_msgtype);
+ rc = -EPROTO;
+ goto out_free;
+ }
+
+ /* Our message is a hsm_action_list. Use pointer math to skip
+ * kuch_hdr and point directly to the message payload.
+ */
+ hal = (struct hsm_action_list *)(kuch + 1);
+
+ /* Check that we have registered for this archive # */
+ if (((1 << hal->hal_archive_num) & ct->archives) == 0) {
+ llapi_err(LLAPI_MSG_INFO | LLAPI_MSG_NO_ERRNO,
+ "Ignoring request for archive #%d (bitmask %#x)\n",
+ hal->hal_archive_num, ct->archives);
+ rc = 0;
+ goto out_free;
+ }
+
+ *halh = hal;
+ *msgsize = kuch->kuc_msglen - sizeof(*kuch);
+ return 0;
+
+out_free:
+ *halh = NULL;
+ *msgsize = 0;
+ free(kuch);
+ return rc;
+}
+
+/** Release the action list when done with it. */
+int llapi_copytool_free(struct hsm_action_list **hal)
+{
+ /* Reuse the llapi_changelog_free function */
+ return llapi_changelog_free((struct changelog_rec **)hal);
+}
+
+int llapi_get_connect_flags(const char *mnt, __u64 *flags)
+{
+ DIR *root;
+ int rc;
+
+ root = opendir(mnt);
+ if (!root) {
+ llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
+ return -1;
+ }
+
+ rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags);
+ closedir(root);
+ if (rc < 0)
+ llapi_err(LLAPI_MSG_ERROR,
+ "ioctl on %s for getting connect flags failed", mnt);
+ return rc;
+}
+
+int llapi_get_version(char *buffer, int buffer_size,
+ char **version)
+{
+ int rc;
+ int fd;
+ struct obd_ioctl_data *data = (struct obd_ioctl_data *)buffer;
+
+ fd = open(OBD_DEV_PATH, O_RDONLY);
+ if (fd == -1)
+ return -errno;
+
+ memset(buffer, 0, buffer_size);
+ data->ioc_version = OBD_IOCTL_VERSION;
+ data->ioc_inllen1 = buffer_size - cfs_size_round(sizeof(*data));
+ data->ioc_inlbuf1 = buffer + cfs_size_round(sizeof(*data));
+ data->ioc_len = obd_ioctl_packlen(data);
+
+ rc = ioctl(fd, OBD_GET_VERSION, buffer);
+ if (rc == -1) {
+ rc = errno;
+ close(fd);
+ return -rc;
+ }
+ close(fd);
+ *version = data->ioc_bulk;
+ return 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff