1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/utils/lustre_cfg.c
38 * Author: Peter J. Braam <braam@clusterfs.com>
39 * Author: Phil Schwan <phil@clusterfs.com>
40 * Author: Andreas Dilger <adilger@clusterfs.com>
41 * Author: Robert Read <rread@clusterfs.com>
45 #include <sys/ioctl.h>
53 #include <liblustre.h>
55 #include <lustre_lib.h>
56 #include <lustre_cfg.h>
57 #include <lustre/lustre_idl.h>
58 #include <lustre_dlm.h>
59 #include <obd.h> /* for struct lov_stripe_md */
61 #include <lustre/lustre_build_version.h>
72 #include <lnet/lnetctl.h>
76 static char * lcfg_devname;
78 int lcfg_set_devname(char *name)
83 /* quietly strip the unnecessary '$' */
84 if (*name == '$' || *name == '%')
87 /* We can't translate from dev # to name */
90 lcfg_devname = strdup(name);
98 char * lcfg_get_devname(void)
103 int jt_lcfg_device(int argc, char **argv)
105 return jt_obd_device(argc, argv);
108 int jt_lcfg_attach(int argc, char **argv)
110 struct lustre_cfg_bufs bufs;
111 struct lustre_cfg *lcfg;
117 lustre_cfg_bufs_reset(&bufs, NULL);
119 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
120 lustre_cfg_bufs_set_string(&bufs, 0, argv[2]);
121 lustre_cfg_bufs_set_string(&bufs, 2, argv[3]);
123 lcfg = lustre_cfg_new(LCFG_ATTACH, &bufs);
124 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
125 lustre_cfg_free(lcfg);
127 fprintf(stderr, "error: %s: LCFG_ATTACH %s\n",
128 jt_cmdname(argv[0]), strerror(rc = errno));
129 } else if (argc == 3) {
132 lcfg_set_devname(argv[2]);
133 if (strlen(argv[2]) > 128) {
134 printf("Name too long to set environment\n");
137 snprintf(name, 512, "LUSTRE_DEV_%s", argv[2]);
138 rc = setenv(name, argv[1], 1);
140 printf("error setting env variable %s\n", name);
143 lcfg_set_devname(argv[2]);
149 int jt_lcfg_setup(int argc, char **argv)
151 struct lustre_cfg_bufs bufs;
152 struct lustre_cfg *lcfg;
156 if (lcfg_devname == NULL) {
157 fprintf(stderr, "%s: please use 'device name' to set the "
158 "device name for config commands.\n",
159 jt_cmdname(argv[0]));
163 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
168 for (i = 1; i < argc; i++) {
169 lustre_cfg_bufs_set_string(&bufs, i, argv[i]);
172 lcfg = lustre_cfg_new(LCFG_SETUP, &bufs);
173 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
174 lustre_cfg_free(lcfg);
176 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
177 strerror(rc = errno));
182 int jt_obd_detach(int argc, char **argv)
184 struct lustre_cfg_bufs bufs;
185 struct lustre_cfg *lcfg;
188 if (lcfg_devname == NULL) {
189 fprintf(stderr, "%s: please use 'device name' to set the "
190 "device name for config commands.\n",
191 jt_cmdname(argv[0]));
195 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
200 lcfg = lustre_cfg_new(LCFG_DETACH, &bufs);
201 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
202 lustre_cfg_free(lcfg);
204 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
205 strerror(rc = errno));
210 int jt_obd_cleanup(int argc, char **argv)
212 struct lustre_cfg_bufs bufs;
213 struct lustre_cfg *lcfg;
216 char flags[3] = { 0 };
220 if (lcfg_devname == NULL) {
221 fprintf(stderr, "%s: please use 'device name' to set the "
222 "device name for config commands.\n",
223 jt_cmdname(argv[0]));
227 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
229 if (argc < 1 || argc > 3)
232 /* we are protected from overflowing our buffer by the argc
235 for (n = 1; n < argc; n++) {
236 if (strcmp(argv[n], "force") == 0) {
237 flags[flag_cnt++] = force;
238 } else if (strcmp(argv[n], "failover") == 0) {
239 flags[flag_cnt++] = failover;
241 fprintf(stderr, "unknown option: %s", argv[n]);
247 lustre_cfg_bufs_set_string(&bufs, 1, flags);
250 lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs);
251 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
252 lustre_cfg_free(lcfg);
254 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
255 strerror(rc = errno));
261 int do_add_uuid(char * func, char *uuid, lnet_nid_t nid)
264 struct lustre_cfg_bufs bufs;
265 struct lustre_cfg *lcfg;
267 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
269 lustre_cfg_bufs_set_string(&bufs, 1, uuid);
271 lcfg = lustre_cfg_new(LCFG_ADD_UUID, &bufs);
272 lcfg->lcfg_nid = nid;
273 /* Poison NAL -- pre 1.4.6 will LASSERT on 0 NAL, this way it
274 doesn't work without crashing (bz 10130) */
275 lcfg->lcfg_nal = 0x5a;
278 fprintf(stderr, "adding\tnid: %d\tuuid: %s\n",
279 lcfg->lcfg_nid, uuid);
281 rc = lcfg_ioctl(func, OBD_DEV_ID, lcfg);
282 lustre_cfg_free(lcfg);
284 fprintf(stderr, "IOC_PORTAL_ADD_UUID failed: %s\n",
289 printf ("Added uuid %s: %s\n", uuid, libcfs_nid2str(nid));
293 int jt_lcfg_add_uuid(int argc, char **argv)
301 nid = libcfs_str2nid(argv[2]);
302 if (nid == LNET_NID_ANY) {
303 fprintf (stderr, "Can't parse NID %s\n", argv[2]);
307 return do_add_uuid(argv[0], argv[1], nid);
310 int obd_add_uuid(char *uuid, lnet_nid_t nid)
312 return do_add_uuid("obd_add_uuid", uuid, nid);
315 int jt_lcfg_del_uuid(int argc, char **argv)
318 struct lustre_cfg_bufs bufs;
319 struct lustre_cfg *lcfg;
322 fprintf(stderr, "usage: %s <uuid>\n", argv[0]);
326 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
327 if (strcmp (argv[1], "_all_"))
328 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
330 lcfg = lustre_cfg_new(LCFG_DEL_UUID, &bufs);
331 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
332 lustre_cfg_free(lcfg);
334 fprintf(stderr, "IOC_PORTAL_DEL_UUID failed: %s\n",
341 int jt_lcfg_del_mount_option(int argc, char **argv)
344 struct lustre_cfg_bufs bufs;
345 struct lustre_cfg *lcfg;
350 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
353 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
355 lcfg = lustre_cfg_new(LCFG_DEL_MOUNTOPT, &bufs);
356 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
357 lustre_cfg_free(lcfg);
359 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
360 strerror(rc = errno));
365 int jt_lcfg_set_timeout(int argc, char **argv)
367 fprintf(stderr, "%s has been deprecated. Use conf_param instead.\n"
368 "e.g. conf_param lustre-MDT0000 obd_timeout=50\n",
369 jt_cmdname(argv[0]));
373 int jt_lcfg_add_conn(int argc, char **argv)
375 struct lustre_cfg_bufs bufs;
376 struct lustre_cfg *lcfg;
387 if (lcfg_devname == NULL) {
388 fprintf(stderr, "%s: please use 'device name' to set the "
389 "device name for config commands.\n",
390 jt_cmdname(argv[0]));
394 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
396 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
398 lcfg = lustre_cfg_new(LCFG_ADD_CONN, &bufs);
399 lcfg->lcfg_num = priority;
401 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
402 lustre_cfg_free (lcfg);
404 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
405 strerror(rc = errno));
411 int jt_lcfg_del_conn(int argc, char **argv)
413 struct lustre_cfg_bufs bufs;
414 struct lustre_cfg *lcfg;
420 if (lcfg_devname == NULL) {
421 fprintf(stderr, "%s: please use 'device name' to set the "
422 "device name for config commands.\n",
423 jt_cmdname(argv[0]));
427 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
429 /* connection uuid */
430 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
432 lcfg = lustre_cfg_new(LCFG_DEL_MOUNTOPT, &bufs);
434 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
435 lustre_cfg_free(lcfg);
437 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
438 strerror(rc = errno));
444 /* Param set locally, directly on target */
445 int jt_lcfg_param(int argc, char **argv)
448 struct lustre_cfg_bufs bufs;
449 struct lustre_cfg *lcfg;
451 if (argc >= LUSTRE_CFG_MAX_BUFCOUNT)
454 lustre_cfg_bufs_reset(&bufs, NULL);
456 for (i = 1; i < argc; i++) {
457 lustre_cfg_bufs_set_string(&bufs, i, argv[i]);
460 lcfg = lustre_cfg_new(LCFG_PARAM, &bufs);
462 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
463 lustre_cfg_free(lcfg);
465 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
466 strerror(rc = errno));
471 /* Param set in config log on MGS */
472 /* conf_param key1=value1 [key2=value2...] */
473 int jt_lcfg_mgsparam(int argc, char **argv)
476 struct lustre_cfg_bufs bufs;
477 struct lustre_cfg *lcfg;
479 if ((argc >= LUSTRE_CFG_MAX_BUFCOUNT) || (argc <= 1))
482 lustre_cfg_bufs_reset(&bufs, NULL);
484 for (i = 1; i < argc; i++) {
485 lustre_cfg_bufs_set_string(&bufs, i, argv[i]);
488 /* We could put other opcodes here. */
489 lcfg = lustre_cfg_new(LCFG_PARAM, &bufs);
491 rc = lcfg_mgs_ioctl(argv[0], OBD_DEV_ID, lcfg);
492 lustre_cfg_free(lcfg);
494 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
495 strerror(rc = errno));
501 /* Display the path in the same format as sysctl
502 * For eg. obdfilter.lustre-OST0000.stats */
503 static char *display_name(char *filename, int show_type)
509 if (stat(filename, &st) < 0)
513 filename += strlen("/proc/");
514 if (strncmp(filename, "fs/", strlen("fs/")) == 0)
515 filename += strlen("fs/");
517 filename += strlen("sys/");
519 if (strncmp(filename, "lustre/", strlen("lustre/")) == 0)
520 filename += strlen("lustre/");
522 /* replace '/' with '.' to match conf_param and sysctl */
524 while ((tmp = strchr(tmp, '/')) != NULL)
527 /* append the indicator to entries*/
529 if (S_ISDIR(st.st_mode))
530 filename[strlen(filename)] = '/';
531 else if (S_ISLNK(st.st_mode))
532 filename[strlen(filename)] = '@';
533 else if (st.st_mode & S_IWUSR)
534 filename[strlen(filename)] = '=';
540 /* Find a character in a length limited string */
541 static char *strnchr(const char *p, char c, size_t n)
554 static char *globerrstr(int glob_rc)
558 return "Out of memory";
562 return "Found no match";
564 return "Unknown error";
567 static void clean_path(char *path)
571 /* If the input is in form Eg. obdfilter.*.stats */
572 if (strchr(path, '.')) {
574 while (*tmp != '\0') {
576 (tmp != path) && (*(tmp - 1) != '\\'))
581 /* get rid of '\', glob doesn't like it */
582 if ((tmp = strrchr(path, '\\')) != NULL) {
583 char *tail = path + strlen(path);
584 while (tmp != path) {
586 memmove(tmp, tmp + 1, tail - tmp);
600 static int getparam_cmdline(int argc, char **argv, struct param_opts *popt)
608 while ((ch = getopt(argc, argv, "nNF")) != -1) {
625 static int getparam_display(struct param_opts *popt, char *pattern)
632 char filename[PATH_MAX + 1]; /* extra 1 byte for file type */
634 rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
636 fprintf(stderr, "error: get_param: %s: %s\n",
637 pattern, globerrstr(rc));
641 buf = malloc(CFS_PAGE_SIZE);
642 for (i = 0; i < glob_info.gl_pathc; i++) {
643 char *valuename = NULL;
645 memset(buf, 0, CFS_PAGE_SIZE);
646 memset(filename, 0, PATH_MAX + 1);
647 if (popt->show_path) {
648 strcpy(filename, glob_info.gl_pathv[i]);
649 if (popt->only_path) {
650 valuename = display_name(filename,
653 printf("%s\n", valuename);
656 valuename = display_name(filename, 0);
659 /* Write the contents of file to stdout */
660 fd = open(glob_info.gl_pathv[i], O_RDONLY);
663 "error: get_param: opening('%s') failed: %s\n",
664 glob_info.gl_pathv[i], strerror(errno));
669 rc = read(fd, buf, CFS_PAGE_SIZE);
673 fprintf(stderr, "error: get_param: "
674 "read('%s') failed: %s\n",
675 glob_info.gl_pathv[i], strerror(errno));
678 /* Print the output in the format path=value if the
679 * value contains no new line character or cab be
680 * occupied in a line, else print value on new line */
681 if (valuename && popt->show_path) {
682 int longbuf = strnchr(buf, rc - 1, '\n') != NULL
684 printf("%s=%s", valuename, longbuf ? "\n" : buf);
690 rc = write(fileno(stdout), buf, rc);
692 fprintf(stderr, "error: get_param: "
693 "write to stdout failed: %s\n",
701 globfree(&glob_info);
706 int jt_lcfg_getparam(int argc, char **argv)
710 struct param_opts popt;
711 char pattern[PATH_MAX];
714 rc = getparam_cmdline(argc, argv, &popt);
715 if (rc < 0 || rc >= argc)
718 for (i = rc; i < argc; i++) {
723 /* If the entire path is specified as input */
724 fp = open(path, O_RDONLY);
726 snprintf(pattern, PATH_MAX, "/proc/{fs,sys}/{lnet,lustre}/%s",
729 strcpy(pattern, path);
733 rc = getparam_display(&popt, pattern);
741 static int setparam_cmdline(int argc, char **argv, struct param_opts *popt)
749 while ((ch = getopt(argc, argv, "n")) != -1) {
761 static int setparam_display(struct param_opts *popt, char *pattern, char *value)
767 char filename[PATH_MAX + 1]; /* extra 1 byte for file type */
769 rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
771 fprintf(stderr, "error: set_param: %s: %s\n",
772 pattern, globerrstr(rc));
775 for (i = 0; i < glob_info.gl_pathc; i++) {
776 char *valuename = NULL;
778 memset(filename, 0, PATH_MAX + 1);
779 if (popt->show_path) {
780 strcpy(filename, glob_info.gl_pathv[i]);
781 valuename = display_name(filename, 0);
783 printf("%s=%s\n", valuename, value);
785 /* Write the new value to the file */
786 fd = open(glob_info.gl_pathv[i], O_WRONLY);
788 rc = write(fd, value, strlen(value));
790 fprintf(stderr, "error: set_param: "
791 "writing to file %s: %s\n",
792 glob_info.gl_pathv[i], strerror(errno));
797 fprintf(stderr, "error: set_param: %s opening %s\n",
798 strerror(rc = errno), glob_info.gl_pathv[i]);
802 globfree(&glob_info);
806 int jt_lcfg_setparam(int argc, char **argv)
810 struct param_opts popt;
811 char pattern[PATH_MAX];
812 char *path = NULL, *value = NULL;
814 rc = setparam_cmdline(argc, argv, &popt);
815 if (rc < 0 || rc >= argc)
818 for (i = rc; i < argc; i++) {
819 if ((value = strchr(argv[i], '=')) != NULL) {
820 /* format: set_param a=b */
825 /* format: set_param a b */
836 /* If the entire path is specified as input */
837 fp = open(path, O_RDONLY);
839 snprintf(pattern, PATH_MAX, "/proc/{fs,sys}/{lnet,lustre}/%s",
842 strcpy(pattern, path);
846 rc = setparam_display(&popt, pattern, value);