-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2009, 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/lshowmount.h
*
#include <errno.h>
#include <libgen.h>
+#include <linux/lustre/lustre_user.h>
#include "nidlist.h"
+#include <lustre/lustreapi.h>
+#include <libcfs/util/param.h>
-#define PROC_DIRS { \
- "/proc/fs/lustre/mgs", \
- "/proc/fs/lustre/mdt", \
- "/proc/fs/lustre/obdfilter", \
- NULL, \
-}
-#define PROC_EXPORTS_TMPL "%s/%s/exports"
-#define PROC_UUID_TMPL "%s/%s/uuid"
+#define PROC_UUID_TMPL "%s/%s/uuid"
static void print_nids(NIDList nidlist, int lookup, int enumerate, int indent);
static int lshowmount(int lookup, int enumerate, int verbose);
char *prog;
#define OPTIONS "ehlv"
-static struct option long_options[] = {
- {"enumerate", no_argument, 0, 'e'},
- {"help", no_argument, 0, 'h'},
- {"lookup", no_argument, 0, 'l'},
- {"verbose", no_argument, 0, 'v'},
- {0, 0, 0, 0},
-};
+static struct option long_opts[] = {
+ { .val = 'e', .name = "enumerate", .has_arg = no_argument },
+ { .val = 'h', .name = "help", .has_arg = no_argument },
+ { .val = 'l', .name = "lookup", .has_arg = no_argument },
+ { .val = 'v', .name = "verbose", .has_arg = no_argument },
+ { .name = NULL } };
static void usage(void)
{
- fprintf(stderr, "usage: %s [-e] [-h] [-l] [-v]\n", prog);
- exit(1);
+ fprintf(stderr, "usage: %s [-e] [-h] [-l] [-v]\n", prog);
+ exit(1);
}
int main(int argc, char **argv)
{
- int opt, optidx = 0;
- int lopt = 0;
- int vopt = 0;
- int eopt = 0;
-
- prog = basename(argv[0]);
-
- while ((opt = getopt_long(argc, argv, OPTIONS, long_options, &optidx)) != -1) {
- switch (opt) {
- case 'e': /* --enumerate */
- eopt = 1;
- break;
- case 'l': /* --lookup */
- lopt = 1;
- break;
- case 'v': /* --verbose */
- vopt = 1;
- break;
- case 'h': /* --help */
- default:
- usage();
- }
- }
-
- if (lshowmount(lopt, eopt, vopt) == 0) {
- fprintf(stderr, "%s: lustre server modules not loaded\n", prog);
- exit(1);
- }
- exit(0);
+ int opt, optidx = 0;
+ int lopt = 0;
+ int vopt = 0;
+ int eopt = 0;
+
+ prog = basename(argv[0]);
+
+ while ((opt = getopt_long(argc, argv, OPTIONS, long_opts,
+ &optidx)) != -1) {
+ switch (opt) {
+ case 'e': /* --enumerate */
+ eopt = 1;
+ break;
+ case 'l': /* --lookup */
+ lopt = 1;
+ break;
+ case 'v': /* --verbose */
+ vopt = 1;
+ break;
+ case 'h': /* --help */
+ default:
+ usage();
+ }
+ }
+
+ if (lshowmount(lopt, eopt, vopt) == 0) {
+ fprintf(stderr, "%s: lustre server modules not loaded\n", prog);
+ exit(1);
+ }
+ exit(0);
+}
+
+
+static void print_expname(const char *path)
+{
+ char *hp, buf[PATH_MAX + 1];
+
+ strncpy(buf, path, PATH_MAX);
+ buf[PATH_MAX] = '\0';
+ hp = strstr(buf, "exports");
+ if (hp && hp > buf) {
+ *(--hp) = '\0';
+ for (; *hp == '/' && hp > buf; hp--)
+ ;
+ for (; *hp != '/' && hp > buf; hp--)
+ ;
+ printf("%s:\n", hp + 1);
+ }
}
static void print_nids(NIDList nidlist, int lookup, int enumerate, int indent)
{
- char *s, *sep = "\n", *pfx = "";
-
- if (lookup)
- nl_lookup_ip(nidlist);
- nl_sort(nidlist);
- nl_uniq(nidlist);
- if (nl_count(nidlist) > 0) {
- if (indent) {
- sep = "\n ";
- pfx = " ";
- }
- if (enumerate)
- s = nl_string(nidlist, sep);
- else
- s = nl_xstring(nidlist, sep);
- printf("%s%s\n", pfx, s);
- free(s);
- }
+ char *s, *sep = "\n", *pfx = "";
+
+ if (lookup)
+ nl_lookup_ip(nidlist);
+ nl_sort(nidlist);
+ nl_uniq(nidlist);
+ if (nl_count(nidlist) > 0) {
+ if (indent) {
+ sep = "\n ";
+ pfx = " ";
+ }
+ if (enumerate)
+ s = nl_string(nidlist, sep);
+ else
+ s = nl_xstring(nidlist, sep);
+ printf("%s%s\n", pfx, s);
+ free(s);
+ }
}
static int lshowmount(int lookup, int enumerate, int verbose)
{
- char *dirs[] = PROC_DIRS;
- char exp[PATH_MAX + 1];
- NIDList nidlist = NULL;
- DIR *topdirp;
- struct dirent *dp;
- int i;
- int opens = 0;
-
- if (!verbose)
- nidlist = nl_create();
- for (i = 0; dirs[i] != NULL; i++) {
- if ((topdirp = opendir(dirs[i])) == NULL)
- continue;
- while ((dp = readdir(topdirp))) {
- if (dp->d_type != DT_DIR)
- continue;
- if (!strcmp(dp->d_name, "."))
- continue;
- if (!strcmp(dp->d_name, ".."))
- continue;
- sprintf(exp, PROC_EXPORTS_TMPL, dirs[i], dp->d_name);
- if (verbose) {
- nidlist = nl_create();
- read_exports(exp, nidlist);
- printf("%s:\n", dp->d_name);
- print_nids(nidlist, lookup, enumerate, 1);
- nl_destroy(nidlist);
- } else
- read_exports(exp, nidlist);
- }
- closedir(topdirp);
- opens++;
- }
- if (!verbose) {
- print_nids(nidlist, lookup, enumerate, 0);
- nl_destroy(nidlist);
- }
- return opens;
+ NIDList nidlist = NULL;
+ glob_t exp_list;
+ int i;
+
+ i = cfs_get_param_paths(&exp_list, "{mgs,mdt,obdfilter}/*/exports");
+ if (i < 0)
+ return -errno;
+ if (!verbose)
+ nidlist = nl_create();
+ for (i = 0; i < exp_list.gl_pathc; i++) {
+ if (verbose) {
+ nidlist = nl_create();
+ read_exports(exp_list.gl_pathv[i], nidlist);
+ print_expname(exp_list.gl_pathv[i]);
+ print_nids(nidlist, lookup, enumerate, 1);
+ nl_destroy(nidlist);
+ } else
+ read_exports(exp_list.gl_pathv[i], nidlist);
+ }
+ if (!verbose) {
+ print_nids(nidlist, lookup, enumerate, 0);
+ nl_destroy(nidlist);
+ }
+ cfs_free_param_data(&exp_list);
+ return i;
}
static int empty_proc_file(char *path)
{
- int empty = 0;
- char buf[36];
- int fd;
-
- if ((fd = open(path, O_RDONLY)) < 0 || read(fd, buf, sizeof(buf)) <= 0)
- empty = 1;
- if (fd >= 0)
- close(fd);
- return empty;
+ int empty = 0;
+ char buf[36];
+ int fd;
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0 || read(fd, buf, sizeof(buf)) <= 0)
+ empty = 1;
+ if (fd >= 0)
+ close(fd);
+ return empty;
}
static void read_exports(char *exports, NIDList nidlist)
{
- DIR *dirp;
- struct dirent *dp;
- char path[PATH_MAX + 1];
-
- if ((dirp = opendir(exports))) {
- while ((dp = readdir(dirp))) {
- if (dp->d_type != DT_DIR)
- continue;
- if (!strcmp(dp->d_name, "."))
- continue;
- if (!strcmp(dp->d_name, ".."))
- continue;
- if (strchr(dp->d_name, '@') == NULL)
- continue;
- sprintf(path, PROC_UUID_TMPL, exports, dp->d_name);
- if (empty_proc_file(path))
- continue;
-
- nl_add(nidlist, dp->d_name);
- }
- closedir(dirp);
- }
+ DIR *dirp;
+ struct dirent *dp;
+ char path[PATH_MAX + 1];
+
+ dirp = opendir(exports);
+ if (dirp) {
+ while ((dp = readdir(dirp))) {
+ if (dp->d_type != DT_DIR)
+ continue;
+ if (!strcmp(dp->d_name, "."))
+ continue;
+ if (!strcmp(dp->d_name, ".."))
+ continue;
+ if (strchr(dp->d_name, '@') == NULL)
+ continue;
+ snprintf(path, sizeof(path), PROC_UUID_TMPL, exports,
+ dp->d_name);
+ if (empty_proc_file(path))
+ continue;
+
+ nl_add(nidlist, dp->d_name);
+ }
+ closedir(dirp);
+ }
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff