4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/utils/lustre_cfg.c
33 * Author: Peter J. Braam <braam@clusterfs.com>
34 * Author: Phil Schwan <phil@clusterfs.com>
35 * Author: Andreas Dilger <adilger@clusterfs.com>
36 * Author: Robert Read <rread@clusterfs.com>
45 #include <sys/ioctl.h>
52 #include <libcfs/util/ioctl.h>
53 #include <libcfs/util/string.h>
54 #include <libcfs/util/param.h>
55 #include <libcfs/util/parser.h>
56 #include <lustre/lustreapi.h>
57 #include <linux/lnet/nidstr.h>
58 #include <linux/lnet/lnetctl.h>
59 #include <linux/lustre/lustre_cfg.h>
60 #include <linux/lustre/lustre_ioctl.h>
61 #include <linux/lustre/lustre_ver.h>
73 static char *lcfg_devname;
75 int lcfg_set_devname(char *name)
83 /* quietly strip the unnecessary '$' */
84 if (*name == '$' || *name == '%')
88 while (*ptr != '\0') {
97 /* We can't translate from dev # to name */
100 lcfg_devname = strdup(name);
108 char *lcfg_get_devname(void)
113 int jt_lcfg_device(int argc, char **argv)
115 return jt_obd_device(argc, argv);
118 static int jt_lcfg_ioctl(struct lustre_cfg_bufs *bufs, char *arg, int cmd)
120 struct lustre_cfg *lcfg;
123 lcfg = malloc(lustre_cfg_len(bufs->lcfg_bufcount, bufs->lcfg_buflen));
127 lustre_cfg_init(lcfg, cmd, bufs);
128 rc = lcfg_ioctl(arg, OBD_DEV_ID, lcfg);
132 fprintf(stderr, "error: %s: %s\n", jt_cmdname(arg),
133 strerror(rc = errno));
137 int jt_lcfg_attach(int argc, char **argv)
139 struct lustre_cfg_bufs bufs;
145 lustre_cfg_bufs_reset(&bufs, NULL);
147 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
148 lustre_cfg_bufs_set_string(&bufs, 0, argv[2]);
149 lustre_cfg_bufs_set_string(&bufs, 2, argv[3]);
151 rc = jt_lcfg_ioctl(&bufs, argv[0], LCFG_ATTACH);
153 lcfg_set_devname(argv[2]);
158 int jt_lcfg_setup(int argc, char **argv)
160 struct lustre_cfg_bufs bufs;
165 "%s: please use 'device name' to set the device name for config commands.\n",
166 jt_cmdname(argv[0]));
170 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
175 for (i = 1; i < argc; i++)
176 lustre_cfg_bufs_set_string(&bufs, i, argv[i]);
178 return jt_lcfg_ioctl(&bufs, argv[0], LCFG_SETUP);
181 int jt_obd_detach(int argc, char **argv)
183 struct lustre_cfg_bufs bufs;
187 "%s: please use 'device name' to set the device name for config commands.\n",
188 jt_cmdname(argv[0]));
192 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
197 return jt_lcfg_ioctl(&bufs, argv[0], LCFG_DETACH);
200 int jt_obd_cleanup(int argc, char **argv)
202 struct lustre_cfg_bufs bufs;
205 char flags[3] = { 0 };
210 "%s: please use 'device name' to set the device name for config commands.\n",
211 jt_cmdname(argv[0]));
215 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
217 if (argc < 1 || argc > 3)
221 * we are protected from overflowing our buffer by the argc
224 for (n = 1; n < argc; n++) {
225 if (strcmp(argv[n], "force") == 0) {
226 flags[flag_cnt++] = force;
227 } else if (strcmp(argv[n], "failover") == 0) {
228 flags[flag_cnt++] = failover;
230 fprintf(stderr, "unknown option: %s\n", argv[n]);
236 lustre_cfg_bufs_set_string(&bufs, 1, flags);
238 return jt_lcfg_ioctl(&bufs, argv[0], LCFG_CLEANUP);
242 int do_add_uuid(char *func, char *uuid, lnet_nid_t nid)
245 struct lustre_cfg_bufs bufs;
246 struct lustre_cfg *lcfg;
248 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
250 lustre_cfg_bufs_set_string(&bufs, 1, uuid);
252 lcfg = malloc(lustre_cfg_len(bufs.lcfg_bufcount, bufs.lcfg_buflen));
256 lustre_cfg_init(lcfg, LCFG_ADD_UUID, &bufs);
257 lcfg->lcfg_nid = nid;
259 rc = lcfg_ioctl(func, OBD_DEV_ID, lcfg);
263 fprintf(stderr, "IOC_PORTAL_ADD_UUID failed: %s\n",
269 printf("Added uuid %s: %s\n", uuid, libcfs_nid2str(nid));
274 int jt_lcfg_add_uuid(int argc, char **argv)
281 nid = libcfs_str2nid(argv[2]);
282 if (nid == LNET_NID_ANY) {
283 fprintf(stderr, "Can't parse NID %s\n", argv[2]);
287 return do_add_uuid(argv[0], argv[1], nid);
290 int jt_lcfg_del_uuid(int argc, char **argv)
292 struct lustre_cfg_bufs bufs;
295 fprintf(stderr, "usage: %s <uuid>\n", argv[0]);
299 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
300 if (strcmp(argv[1], "_all_"))
301 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
303 return jt_lcfg_ioctl(&bufs, argv[0], LCFG_DEL_UUID);
306 int jt_lcfg_del_mount_option(int argc, char **argv)
308 struct lustre_cfg_bufs bufs;
313 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
316 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
318 return jt_lcfg_ioctl(&bufs, argv[0], LCFG_DEL_MOUNTOPT);
321 int jt_lcfg_set_timeout(int argc, char **argv)
324 struct lustre_cfg_bufs bufs;
325 struct lustre_cfg *lcfg;
328 "%s has been deprecated. Use conf_param instead.\ne.g. conf_param lustre-MDT0000 obd_timeout=50\n",
329 jt_cmdname(argv[0]));
335 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
337 lcfg = malloc(lustre_cfg_len(bufs.lcfg_bufcount, bufs.lcfg_buflen));
341 lustre_cfg_init(lcfg, LCFG_SET_TIMEOUT, &bufs);
342 lcfg->lcfg_num = atoi(argv[1]);
344 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
348 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
349 strerror(rc = errno));
354 int jt_lcfg_add_conn(int argc, char **argv)
356 struct lustre_cfg_bufs bufs;
357 struct lustre_cfg *lcfg;
370 "%s: please use 'device name' to set the device name for config commands.\n",
371 jt_cmdname(argv[0]));
375 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
377 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
379 lcfg = malloc(lustre_cfg_len(bufs.lcfg_bufcount, bufs.lcfg_buflen));
383 lustre_cfg_init(lcfg, LCFG_ADD_CONN, &bufs);
384 lcfg->lcfg_num = priority;
386 rc = lcfg_ioctl(argv[0], OBD_DEV_ID, lcfg);
390 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
391 strerror(rc = errno));
397 int jt_lcfg_del_conn(int argc, char **argv)
399 struct lustre_cfg_bufs bufs;
406 "%s: please use 'device name' to set the device name for config commands.\n",
407 jt_cmdname(argv[0]));
411 lustre_cfg_bufs_reset(&bufs, lcfg_devname);
413 /* connection uuid */
414 lustre_cfg_bufs_set_string(&bufs, 1, argv[1]);
416 return jt_lcfg_ioctl(&bufs, argv[0], LCFG_DEL_MOUNTOPT);
419 /* Param set locally, directly on target */
420 int jt_lcfg_param(int argc, char **argv)
422 struct lustre_cfg_bufs bufs;
425 if (argc >= LUSTRE_CFG_MAX_BUFCOUNT)
428 lustre_cfg_bufs_reset(&bufs, NULL);
430 for (i = 1; i < argc; i++)
431 lustre_cfg_bufs_set_string(&bufs, i, argv[i]);
433 return jt_lcfg_ioctl(&bufs, argv[0], LCFG_PARAM);
437 unsigned int po_only_path:1;
438 unsigned int po_show_path:1;
439 unsigned int po_show_type:1;
440 unsigned int po_recursive:1;
441 unsigned int po_perm:1;
442 unsigned int po_delete:1;
443 unsigned int po_only_dir:1;
444 unsigned int po_file:1;
447 int lcfg_setparam_perm(char *func, char *buf)
450 struct lustre_cfg_bufs bufs;
451 struct lustre_cfg *lcfg;
453 lustre_cfg_bufs_reset(&bufs, NULL);
455 * This same command would be executed on all nodes, many
456 * of which should fail (silently) because they don't have
457 * that proc file existing locally. There would be no
458 * preprocessing on the MGS to try to figure out which
459 * parameter files to add this to, there would be nodes
460 * processing on the cluster nodes to try to figure out
461 * if they are the intended targets. They will blindly
462 * try to set the parameter, and ENOTFOUND means it wasn't
464 * Target name "general" means call on all targets. It is
465 * left here in case some filtering will be added in
468 lustre_cfg_bufs_set_string(&bufs, 0, "general");
470 lustre_cfg_bufs_set_string(&bufs, 1, buf);
472 lcfg = malloc(lustre_cfg_len(bufs.lcfg_bufcount,
476 fprintf(stderr, "error: allocating lcfg for %s: %s\n",
477 jt_cmdname(func), strerror(rc));
480 lustre_cfg_init(lcfg, LCFG_SET_PARAM, &bufs);
481 rc = lcfg_mgs_ioctl(func, OBD_DEV_ID, lcfg);
483 fprintf(stderr, "error: executing %s: %s\n",
484 jt_cmdname(func), strerror(errno));
492 * Param set to single log file, used by all clients and servers.
493 * This should be loaded after the individual config logs.
494 * Called from set param with -P option.
496 static int jt_lcfg_setparam_perm(int argc, char **argv,
497 struct param_opts *popt)
505 first_param = optind;
506 if (first_param < 0 || first_param >= argc)
509 for (i = first_param, rc = 0; i < argc; i++) {
510 len = strlen(argv[i]);
514 /* put an '=' on the end in case it doesn't have one */
515 if (popt->po_delete && argv[i][len - 1] != '=') {
516 buf = malloc(len + 1);
521 sprintf(buf, "%s=", argv[i]);
524 rc = lcfg_setparam_perm(argv[0], buf);
533 int lcfg_conf_param(char *func, char *buf)
536 struct lustre_cfg_bufs bufs;
537 struct lustre_cfg *lcfg;
539 lustre_cfg_bufs_reset(&bufs, NULL);
540 lustre_cfg_bufs_set_string(&bufs, 1, buf);
542 /* We could put other opcodes here. */
543 lcfg = malloc(lustre_cfg_len(bufs.lcfg_bufcount, bufs.lcfg_buflen));
547 lustre_cfg_init(lcfg, LCFG_PARAM, &bufs);
548 rc = lcfg_mgs_ioctl(func, OBD_DEV_ID, lcfg);
558 * Param set in config log on MGS
559 * conf_param key=value
561 * Note we can actually send mgc conf_params from clients, but currently
562 * that's only done for default file striping (see ll_send_mgc_param),
565 * After removal of a parameter (-d) Lustre will use the default
566 * AT NEXT REBOOT, not immediately.
568 int jt_lcfg_confparam(int argc, char **argv)
574 /* mgs_setparam processes only lctl buf #1 */
575 if ((argc > 3) || (argc <= 1))
578 while ((rc = getopt(argc, argv, "d")) != -1) {
593 /* for delete, make it "<param>=\0" */
594 buf = malloc(strlen(argv[optind]) + 2);
599 /* put an '=' on the end in case it doesn't have one */
600 sprintf(buf, "%s=", argv[optind]);
601 /* then truncate after the first '=' */
602 ptr = strchr(buf, '=');
606 rc = lcfg_conf_param(argv[0], buf);
608 if (buf != argv[optind])
612 fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
620 * Display a parameter path in the same format as sysctl.
621 * E.g. obdfilter.lustre-OST0000.stats
623 * \param[in] filename file name of the parameter
624 * \param[in] st parameter file stats
625 * \param[in] popt set/get param options
627 * \retval allocated pointer containing modified filename
630 display_name(const char *filename, struct stat *st, struct param_opts *popt)
632 size_t suffix_len = 0;
637 if (popt->po_show_type) {
638 if (S_ISDIR(st->st_mode))
640 else if (S_ISLNK(st->st_mode))
642 else if (st->st_mode & S_IWUSR)
646 /* Take the original filename string and chop off the glob addition */
647 tmp = strstr(filename, "/lustre/");
649 tmp = strstr(filename, "/lnet/");
651 tmp += strlen("/lnet/");
653 tmp += strlen("/lustre/");
656 /* Allocate return string */
657 param_name = strdup(tmp);
661 /* replace '/' with '.' to match conf_param and sysctl */
662 for (tmp = strchr(param_name, '/'); tmp != NULL; tmp = strchr(tmp, '/'))
665 /* Append the indicator to entries if needed. */
666 if (popt->po_show_type && suffix != NULL) {
667 suffix_len = strlen(suffix);
669 tmp = realloc(param_name, suffix_len + strlen(param_name) + 1);
672 strncat(param_name, suffix,
673 strlen(param_name) + suffix_len);
680 /* Find a character in a length limited string */
681 /* BEWARE - kernel definition of strnchr has args in different order! */
682 static char *strnchr(const char *p, char c, size_t n)
696 * Turns a lctl parameter string into a procfs/sysfs subdirectory path pattern.
698 * \param[in] popt Used to control parameter usage. For this
699 * function it is used to see if the path has
701 * \param[in,out] path lctl parameter string that is turned into
702 * the subdirectory path pattern that is used
703 * to search the procfs/sysfs tree.
705 * \retval -errno on error.
708 clean_path(struct param_opts *popt, char *path)
710 char *nidstart = NULL;
714 if (popt == NULL || path == NULL || strlen(path) == 0)
717 /* If path contains a suffix we need to remove it */
718 if (popt->po_show_type) {
719 size_t path_end = strlen(path) - 1;
721 tmp = path + path_end;
732 /* get rid of '\', glob doesn't like it */
733 tmp = strrchr(path, '\\');
735 char *tail = path + strlen(path);
737 while (tmp != path) {
739 memmove(tmp, tmp + 1, tail - tmp);
746 /* Does path contain a NID string? Skip '.->/' replacement for it. */
747 tmp = strchr(path, '@');
749 /* First find the NID start. NIDs may have variable (0-4) '.',
750 * so find the common NID prefixes instead of trying to count
751 * the dots. Not great, but there are only two, and faster
752 * than multiple speculative NID parses and bad DNS lookups.
754 if ((tmp = strstr(path, ".exports.")))
755 nidstart = tmp + strlen(".exports.");
756 else if ((tmp = strstr(path, ".MGC")))
759 /* Next, find the end of the NID string. */
761 nidend = strchrnul(strchr(nidstart, '@'), '.');
764 /* replace param '.' with '/' */
765 for (tmp = strchr(path, '.'); tmp != NULL; tmp = strchr(tmp, '.')) {
769 * There exist cases where some of the subdirectories of the
770 * the parameter tree has embedded in its name a NID string.
771 * This means that it is possible that these subdirectories
772 * could have actual '.' in its name. If this is the case we
773 * don't want to blindly replace the '.' with '/', so skip
774 * over the part of the parameter containing the NID.
784 * The application lctl can perform three operations for lustre
785 * tunables. This enum defines those three operations which are
787 * 1) LIST_PARAM - list available tunables
788 * 2) GET_PARAM - report the current setting of a tunable
789 * 3) SET_PARAM - set the tunable to a new value
791 enum parameter_operation {
797 char *parameter_opname[] = {
798 [LIST_PARAM] = "list_param",
799 [GET_PARAM] = "get_param",
800 [SET_PARAM] = "set_param",
804 * Read the value of parameter
806 * \param[in] path full path to the parameter
807 * \param[in] param_name lctl parameter format of the
809 * \param[in] popt set/get param options
811 * \retval 0 on success.
812 * \retval -errno on error.
815 read_param(const char *path, const char *param_name, struct param_opts *popt)
821 rc = llapi_param_get_value(path, &buf, &buflen);
824 "error: read_param: \'%s\': %s\n",
825 path, strerror(-rc));
828 /* don't print anything for empty files */
832 if (popt->po_show_path) {
835 longbuf = strnchr(buf, buflen - 1, '\n') != NULL ||
836 buflen + strlen(param_name) >= 80;
837 printf("%s=%s", param_name, longbuf ? "\n" : "");
847 * Set a parameter to a specified value
849 * \param[in] path full path to the parameter
850 * \param[in] param_name lctl parameter format of the parameter path
851 * \param[in] popt set/get param options
852 * \param[in] value value to set the parameter to
854 * \retval number of bytes written on success.
855 * \retval -errno on error.
858 write_param(const char *path, const char *param_name, struct param_opts *popt,
867 /* Write the new value to the file */
868 fd = open(path, O_WRONLY);
871 fprintf(stderr, "error: set_param: opening '%s': %s\n",
872 path, strerror(errno));
876 count = write(fd, value, strlen(value));
880 fprintf(stderr, "error: set_param: setting %s=%s: %s\n",
881 path, value, strerror(errno));
883 } else if (count < strlen(value)) { /* Truncate case */
886 "error: set_param: setting %s=%s: wrote only %zd\n",
888 } else if (popt->po_show_path) {
889 printf("%s=%s\n", param_name, value);
897 * Perform a read, write or just a listing of a parameter
899 * \param[in] popt list,set,get parameter options
900 * \param[in] pattern search filter for the path of the parameter
901 * \param[in] value value to set the parameter if write operation
902 * \param[in] mode what operation to perform with the parameter
904 * \retval number of bytes written on success.
905 * \retval -errno on error and prints error message.
908 param_display(struct param_opts *popt, char *pattern, char *value,
909 enum parameter_operation mode)
914 char *opname = parameter_opname[mode];
917 rc = llapi_param_get_paths(pattern, &paths);
920 if (!popt->po_recursive) {
921 fprintf(stderr, "error: %s: param_path '%s': %s\n",
922 opname, pattern, strerror(errno));
927 dup_cache = calloc(paths.gl_pathc, sizeof(char *));
931 "error: %s: allocating '%s' dup_cache[%zd]: %s\n",
932 opname, pattern, paths.gl_pathc, strerror(-rc));
936 for (i = 0; i < paths.gl_pathc; i++) {
937 char *param_name = NULL, *tmp;
938 char pathname[PATH_MAX], param_dir[PATH_MAX + 2];
942 if (stat(paths.gl_pathv[i], &st) == -1) {
943 fprintf(stderr, "error: %s: stat '%s': %s\n",
944 opname, paths.gl_pathv[i], strerror(errno));
950 if (popt->po_only_dir && !S_ISDIR(st.st_mode))
953 param_name = display_name(paths.gl_pathv[i], &st, popt);
956 "error: %s: generating name for '%s': %s\n",
957 opname, paths.gl_pathv[i], strerror(ENOMEM));
965 /* Read the contents of file to stdout */
966 if (S_ISREG(st.st_mode)) {
967 rc2 = read_param(paths.gl_pathv[i], param_name,
969 if (rc2 < 0 && rc == 0)
974 if (S_ISREG(st.st_mode)) {
975 rc2 = write_param(paths.gl_pathv[i],
976 param_name, popt, value);
977 if (rc2 < 0 && rc == 0)
983 * For the upstream client the parameter files locations
984 * are split between under both /sys/kernel/debug/lustre
985 * and /sys/fs/lustre. The parameter files containing
986 * small amounts of data, less than a page in size, are
987 * located under /sys/fs/lustre and in the case of large
988 * parameter data files, think stats for example, are
989 * located in the debugfs tree. Since the files are
990 * split across two trees the directories are often
991 * duplicated which means these directories are listed
992 * twice which leads to duplicate output to the user.
993 * To avoid scanning a directory twice we have to cache
994 * any directory and check if a search has been
997 for (j = 0; j < dup_count; j++) {
998 if (!strcmp(dup_cache[j], param_name))
1001 if (j != dup_count) {
1006 dup_cache[dup_count++] = strdup(param_name);
1008 if (popt->po_show_path)
1009 printf("%s\n", param_name);
1014 * Only directories are searched recursively if
1015 * requested by the user
1017 if (!S_ISDIR(st.st_mode) || !popt->po_recursive) {
1023 /* Turn param_name into file path format */
1024 rc2 = clean_path(popt, param_name);
1026 fprintf(stderr, "error: %s: cleaning '%s': %s\n",
1027 opname, param_name, strerror(-rc2));
1035 /* Use param_name to grab subdirectory tree from full path */
1036 snprintf(param_dir, sizeof(param_dir), "/%s", param_name);
1037 tmp = strstr(paths.gl_pathv[i], param_dir);
1039 /* cleanup paramname now that we are done with it */
1042 memset(¶m_dir, '\0', sizeof(param_dir));
1044 /* Shouldn't happen but just in case */
1052 rc2 = snprintf(pathname, sizeof(pathname), "%s/*", tmp);
1055 * snprintf() should never an error, and if it does
1056 * there isn't much point trying to use fprintf()
1060 if (rc2 >= sizeof(pathname)) {
1061 fprintf(stderr, "error: %s: overflow processing '%s'\n",
1068 rc2 = param_display(popt, pathname, value, mode);
1069 if (rc2 != 0 && rc2 != -ENOENT) {
1070 /* errors will be printed by param_display() */
1077 for (i = 0; i < dup_count; i++)
1081 llapi_param_paths_free(&paths);
1085 static int listparam_cmdline(int argc, char **argv, struct param_opts *popt)
1089 popt->po_show_path = 1;
1090 popt->po_only_path = 1;
1092 while ((ch = getopt(argc, argv, "FRD")) != -1) {
1095 popt->po_show_type = 1;
1098 popt->po_recursive = 1;
1101 popt->po_only_dir = 1;
1111 int jt_lcfg_listparam(int argc, char **argv)
1113 int rc = 0, index, i;
1114 struct param_opts popt;
1117 memset(&popt, 0, sizeof(popt));
1118 index = listparam_cmdline(argc, argv, &popt);
1119 if (index < 0 || index >= argc)
1122 for (i = index; i < argc; i++) {
1127 rc2 = clean_path(&popt, path);
1129 fprintf(stderr, "error: %s: cleaning '%s': %s\n",
1130 jt_cmdname(argv[0]), path, strerror(-rc2));
1136 rc2 = param_display(&popt, path, NULL, LIST_PARAM);
1138 fprintf(stderr, "error: %s: listing '%s': %s\n",
1139 jt_cmdname(argv[0]), path, strerror(-rc2));
1149 static int getparam_cmdline(int argc, char **argv, struct param_opts *popt)
1153 popt->po_show_path = 1;
1155 while ((ch = getopt(argc, argv, "FnNR")) != -1) {
1158 popt->po_show_type = 1;
1161 popt->po_show_path = 0;
1164 popt->po_only_path = 1;
1167 popt->po_recursive = 1;
1177 int jt_lcfg_getparam(int argc, char **argv)
1179 int rc = 0, index, i;
1180 struct param_opts popt;
1183 memset(&popt, 0, sizeof(popt));
1184 index = getparam_cmdline(argc, argv, &popt);
1185 if (index < 0 || index >= argc)
1188 for (i = index; i < argc; i++) {
1193 rc2 = clean_path(&popt, path);
1195 fprintf(stderr, "error: %s: cleaning '%s': %s\n",
1196 jt_cmdname(argv[0]), path, strerror(-rc2));
1202 rc2 = param_display(&popt, path, NULL,
1203 popt.po_only_path ? LIST_PARAM : GET_PARAM);
1214 #ifdef HAVE_SERVER_SUPPORT
1216 * Output information about nodemaps.
1217 * \param argc number of args
1218 * \param argv[] variable string arguments
1220 * [list|nodemap_name|all] \a list will list all nodemaps (default).
1221 * Specifying a \a nodemap_name will
1222 * display info about that specific nodemap.
1223 * \a all will display info for all nodemaps.
1224 * \retval 0 on success
1226 int jt_nodemap_info(int argc, char **argv)
1228 const char usage_str[] = "usage: nodemap_info [list|nodemap_name|all]\n";
1229 struct param_opts popt;
1232 memset(&popt, 0, sizeof(popt));
1233 popt.po_show_path = 1;
1236 fprintf(stderr, usage_str);
1240 if (argc == 1 || strcmp("list", argv[1]) == 0) {
1241 popt.po_only_path = 1;
1242 popt.po_only_dir = 1;
1243 rc = param_display(&popt, "nodemap/*", NULL, LIST_PARAM);
1244 } else if (strcmp("all", argv[1]) == 0) {
1245 rc = param_display(&popt, "nodemap/*/*", NULL, LIST_PARAM);
1247 char pattern[PATH_MAX];
1249 snprintf(pattern, sizeof(pattern), "nodemap/%s/*", argv[1]);
1250 rc = param_display(&popt, pattern, NULL, LIST_PARAM);
1253 "error: nodemap_info: cannot find nodemap %s\n",
1260 static int setparam_cmdline(int argc, char **argv, struct param_opts *popt)
1264 popt->po_show_path = 1;
1265 popt->po_only_path = 0;
1266 popt->po_show_type = 0;
1267 popt->po_recursive = 0;
1269 popt->po_delete = 0;
1272 while ((ch = getopt(argc, argv, "nPdF")) != -1) {
1275 popt->po_show_path = 0;
1281 popt->po_delete = 1;
1300 #define PS_PARAM_FOUND 1
1301 #define PS_PARAM_SET 2
1302 #define PS_VAL_FOUND 4
1303 #define PS_VAL_SET 8
1304 #define PS_DEVICE_FOUND 16
1305 #define PS_DEVICE_SET 32
1307 #define PARAM_SZ 256
1309 static struct cfg_type_data {
1310 enum paramtype ptype;
1312 } cfg_type_table[] = {
1313 { PT_SETPARAM, "set_param" },
1314 { PT_CONFPARAM, "conf_param" },
1318 static struct cfg_stage_data {
1321 } cfg_stage_table[] = {
1322 { PS_PARAM_FOUND, "parameter" },
1323 { PS_VAL_FOUND, "value" },
1324 { PS_DEVICE_FOUND, "device" },
1328 void conf_to_set_param(enum paramtype confset, const char *param,
1329 const char *device, char *buf,
1334 if (confset == PT_SETPARAM) {
1335 strncpy(buf, param, bufsize);
1340 * sys.* params are top level, we just need to trim the sys.
1342 tmp = strstr(param, "sys.");
1345 strncpy(buf, tmp, bufsize);
1350 * parameters look like type.parameter, we need to stick the device
1351 * in the middle. Example combine mdt.identity_upcall with device
1352 * lustre-MDT0000 for mdt.lustre-MDT0000.identity_upcall
1355 tmp = strchrnul(param, '.');
1356 snprintf(buf, tmp - param + 1, "%s", param);
1358 bufsize -= tmp - param;
1359 snprintf(buf, bufsize, ".%s%s", device, tmp);
1362 int lcfg_setparam_yaml(char *func, char *filename)
1365 yaml_parser_t parser;
1369 enum paramtype confset = PT_NONE;
1370 int param = PS_NONE;
1372 char parameter[PARAM_SZ + 1];
1373 char value[PARAM_SZ + 1];
1374 char device[PARAM_SZ + 1];
1376 file = fopen(filename, "rb");
1377 yaml_parser_initialize(&parser);
1378 yaml_parser_set_input_file(&parser, file);
1381 * Search tokens for conf_param or set_param
1382 * The token after "parameter" goes into parameter
1383 * The token after "value" goes into value
1384 * when we have all 3, create param=val and call the
1385 * appropriate function for set/conf param
1387 while (token.type != YAML_STREAM_END_TOKEN && rc == 0) {
1390 yaml_token_delete(&token);
1391 if (!yaml_parser_scan(&parser, &token)) {
1396 if (token.type != YAML_SCALAR_TOKEN)
1399 for (i = 0; cfg_type_table[i].ptype != PT_NONE; i++) {
1400 if (!strncmp((char *)token.data.alias.value,
1401 cfg_type_table[i].type_name,
1402 strlen(cfg_type_table[i].type_name))) {
1403 confset = cfg_type_table[i].ptype;
1408 if (confset == PT_NONE)
1411 for (i = 0; cfg_stage_table[i].pstage != PS_NONE; i++) {
1412 if (!strncmp((char *)token.data.alias.value,
1413 cfg_stage_table[i].stage_name,
1414 strlen(cfg_stage_table[i].stage_name))) {
1415 param |= cfg_stage_table[i].pstage;
1420 if (cfg_stage_table[i].pstage != PS_NONE)
1423 if (param & PS_PARAM_FOUND) {
1424 conf_to_set_param(confset,
1425 (char *)token.data.alias.value,
1426 device, parameter, PARAM_SZ);
1427 param |= PS_PARAM_SET;
1428 param &= ~PS_PARAM_FOUND;
1431 * we're getting parameter: param=val
1432 * copy val and mark that we've got it in case
1433 * there is no value: tag
1435 tmp = strchrnul(parameter, '=');
1437 strncpy(value, tmp + 1, sizeof(value) - 1);
1439 param |= PS_VAL_SET;
1443 } else if (param & PS_VAL_FOUND) {
1444 strncpy(value, (char *)token.data.alias.value,
1446 param |= PS_VAL_SET;
1447 param &= ~PS_VAL_FOUND;
1448 } else if (param & PS_DEVICE_FOUND) {
1449 strncpy(device, (char *)token.data.alias.value,
1451 param |= PS_DEVICE_SET;
1452 param &= ~PS_DEVICE_FOUND;
1455 if (confset && param & PS_VAL_SET && param & PS_PARAM_SET) {
1456 int size = strlen(parameter) + strlen(value) + 2;
1457 char *buf = malloc(size);
1463 snprintf(buf, size, "%s=%s", parameter, value);
1465 printf("set_param: %s\n", buf);
1466 rc = lcfg_setparam_perm(func, buf);
1470 parameter[0] = '\0';
1477 yaml_parser_delete(&parser);
1483 int jt_lcfg_setparam(int argc, char **argv)
1485 int rc = 0, index, i;
1486 struct param_opts popt;
1487 char *path = NULL, *value = NULL;
1489 memset(&popt, 0, sizeof(popt));
1490 index = setparam_cmdline(argc, argv, &popt);
1491 if (index < 0 || index >= argc)
1496 * We can't delete parameters that were
1497 * set with old conf_param interface
1499 return jt_lcfg_setparam_perm(argc, argv, &popt);
1502 return lcfg_setparam_yaml(argv[0], argv[index]);
1504 for (i = index; i < argc; i++) {
1508 value = strchr(path, '=');
1510 /* format: set_param a=b */
1513 if (*value == '\0') {
1515 "error: %s: setting %s: no value\n",
1516 jt_cmdname(argv[0]), path);
1522 /* format: set_param a b */
1526 "error: %s: setting %s: no value\n",
1527 jt_cmdname(argv[0]), path);
1535 rc2 = clean_path(&popt, path);
1537 fprintf(stderr, "error: %s: cleaning %s: %s\n",
1538 jt_cmdname(argv[0]), path, strerror(-rc2));
1544 rc2 = param_display(&popt, path, value, SET_PARAM);