1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002 Cluster File Systems, Inc.
5 * Author: Robert Read <rread@clusterfs.com>
7 * This file is part of Lustre, http://www.lustre.org.
9 * Lustre is free software; you can redistribute it and/or
10 * modify it under the terms of version 2 of the GNU General Public
11 * License as published by the Free Software Foundation.
13 * Lustre is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with Lustre; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include <sys/mount.h>
35 #include <sys/utsname.h>
40 #include <portals/ptlctl.h>
41 #include <linux/lustre_idl.h>
47 static char *progname = NULL;
55 #define MAX_ROUTES 1024
57 ptl_nid_t lmd_cluster_id = 0;
58 llmount_route_t routes[MAX_ROUTES];
60 static int check_mtab_entry(char *spec, char *mtpt, char *type)
66 fp = setmntent(MOUNTED, "r");
70 while ((mnt = getmntent(fp)) != NULL) {
71 if (strcmp(mnt->mnt_fsname, spec) == 0 &&
72 strcmp(mnt->mnt_dir, mtpt) == 0 &&
73 strcmp(mnt->mnt_type, type) == 0) {
74 fprintf(stderr, "%s: according to %s %s is "
75 "already mounted on %s\n",
76 progname, MOUNTED, spec, mtpt);
77 return(1); /* or should we return an error? */
86 update_mtab_entry(char *spec, char *mtpt, char *type, char *opts,
87 int flags, int freq, int pass)
92 mnt.mnt_fsname = spec;
95 mnt.mnt_opts = opts ? opts : "";
97 mnt.mnt_passno = pass;
100 fp = setmntent(MOUNTED, "a+");
102 fprintf(stderr, "%s: setmntent(%s): %s:",
103 progname, MOUNTED, strerror (errno));
105 if ((addmntent (fp, &mnt)) == 1) {
106 fprintf(stderr, "%s: addmntent: %s:",
107 progname, strerror (errno));
115 init_options(struct lustre_mount_data *lmd)
117 memset(lmd, 0, sizeof(*lmd));
118 lmd->lmd_magic = LMD_MAGIC;
119 lmd->lmd_server_nid = PTL_NID_ANY;
120 lmd->lmd_local_nid = PTL_NID_ANY;
121 lmd->lmd_port = 988; /* XXX define LUSTRE_DEFAULT_PORT */
122 lmd->lmd_nal = SOCKNAL;
124 lmd->lmd_remote_flag = 0;
125 lmd->lmd_nllu = NOBODY_UID;
126 lmd->lmd_nllg = NOBODY_GID;
127 strncpy(lmd->lmd_mds_security, "null", sizeof(lmd->lmd_mds_security));
128 strncpy(lmd->lmd_oss_security, "null", sizeof(lmd->lmd_oss_security));
133 print_options(struct lustre_mount_data *lmd)
137 printf("mds: %s\n", lmd->lmd_mds);
138 printf("profile: %s\n", lmd->lmd_profile);
139 printf("mds_sec_flavor: %s\n", lmd->lmd_mds_security);
140 printf("oss_sec_flavor: %s\n", lmd->lmd_oss_security);
141 printf("server_nid: "LPX64"\n", lmd->lmd_server_nid);
143 if (lmd->lmd_nal != CRAY_KB_SSNAL) {
145 printf("local_nid: "LPX64"\n", lmd->lmd_local_nid);
149 printf("nal: %x\n", lmd->lmd_nal);
151 if (lmd->lmd_nal != CRAY_KB_SSNAL) {
153 printf("server_ipaddr: 0x%x\n", lmd->lmd_server_ipaddr);
154 printf("port: %d\n", lmd->lmd_port);
159 for (i = 0; i < route_index; i++)
160 printf("route: "LPX64" : "LPX64" - "LPX64"\n",
161 routes[i].gw, routes[i].lo, routes[i].hi);
166 static int parse_route(char *opteq, char *opttgts)
168 char *gw_lo_ptr, *gw_hi_ptr, *tgt_lo_ptr, *tgt_hi_ptr;
169 ptl_nid_t gw_lo, gw_hi, tgt_lo, tgt_hi;
172 gw_lo_ptr = opteq + 1;
173 if (!(gw_hi_ptr = strchr(gw_lo_ptr, '-'))) {
174 gw_hi_ptr = gw_lo_ptr;
180 if (ptl_parse_nid(&gw_lo, gw_lo_ptr) != 0) {
181 fprintf(stderr, "%s: can't parse NID %s\n", progname,gw_lo_ptr);
185 if (ptl_parse_nid(&gw_hi, gw_hi_ptr) != 0) {
186 fprintf(stderr, "%s: can't parse NID %s\n", progname,gw_hi_ptr);
190 tgt_lo_ptr = opttgts + 1;
191 if (!(tgt_hi_ptr = strchr(tgt_lo_ptr, '-'))) {
192 tgt_hi_ptr = tgt_lo_ptr;
194 tgt_hi_ptr[0] = '\0';
198 if (ptl_parse_nid(&tgt_lo, tgt_lo_ptr) != 0) {
199 fprintf(stderr, "%s: can't parse NID %s\n",progname,tgt_lo_ptr);
203 if (ptl_parse_nid(&tgt_hi, tgt_hi_ptr) != 0) {
204 fprintf(stderr, "%s: can't parse NID %s\n",progname,tgt_hi_ptr);
208 while (gw_lo <= gw_hi) {
209 if (route_index >= MAX_ROUTES) {
210 fprintf(stderr, "%s: to many routes %d\n",
211 progname, MAX_ROUTES);
215 routes[route_index].gw = gw_lo;
216 routes[route_index].lo = tgt_lo;
217 routes[route_index].hi = tgt_hi;
226 * here all what we do is gurantee the result is exactly
227 * what user intend to get, no ambiguous. maybe there have
228 * simpler library call could do the same job for us?
230 static int parse_u32(char *str, uint32_t *res)
235 id = strtol(str, &endptr, 0);
236 if (endptr && *endptr != 0)
239 if (id == LONG_MAX || id == LONG_MIN)
242 if ((uint32_t)id != id)
245 *res = (uint32_t) id;
249 static int parse_nllu(struct lustre_mount_data *lmd, char *str_nllu)
253 if (parse_u32(str_nllu, &lmd->lmd_nllu) == 0)
256 pass = getpwnam(str_nllu);
260 lmd->lmd_nllu = pass->pw_uid;
264 static int parse_nllg(struct lustre_mount_data *lmd, char *str_nllg)
268 if (parse_u32(str_nllg, &lmd->lmd_nllg) == 0)
271 grp = getgrnam(str_nllg);
275 lmd->lmd_nllg = grp->gr_gid;
279 int parse_options(char * options, struct lustre_mount_data *lmd)
281 ptl_nid_t nid = 0, cluster_id = 0;
283 char *opt, *opteq, *opttgts;
285 /* parsing ideas here taken from util-linux/mount/nfsmount.c */
286 for (opt = strtok(options, ","); opt; opt = strtok(NULL, ",")) {
287 if ((opteq = strchr(opt, '='))) {
288 val = atoi(opteq + 1);
290 if (!strcmp(opt, "nettype")) {
291 lmd->lmd_nal = ptl_name2nal(opteq + 1);
292 if (lmd->lmd_nal < 0) {
293 fprintf(stderr, "%s: can't parse NET "
294 "%s\n", progname, opteq + 1);
297 } else if(!strcmp(opt, "cluster_id")) {
298 if (ptl_parse_nid(&cluster_id, opteq+1) != 0) {
299 fprintf (stderr, "%s: can't parse NID "
300 "%s\n", progname, opteq+1);
303 lmd_cluster_id = cluster_id;
304 } else if(!strcmp(opt, "route")) {
305 if (!(opttgts = strchr(opteq + 1, ':'))) {
306 fprintf(stderr, "%s: Route must be "
307 "of the form: route="
308 "<gw>[-<gw>]:<low>[-<high>]\n",
312 parse_route(opteq, opttgts);
313 } else if (!strcmp(opt, "local_nid")) {
314 if (ptl_parse_nid(&nid, opteq + 1) != 0) {
315 fprintf (stderr, "%s: "
316 "can't parse NID %s\n",
321 lmd->lmd_local_nid = nid;
322 } else if (!strcmp(opt, "server_nid")) {
323 if (ptl_parse_nid(&nid, opteq + 1) != 0) {
324 fprintf (stderr, "%s: "
325 "can't parse NID %s\n",
326 progname, opteq + 1);
329 lmd->lmd_server_nid = nid;
330 } else if (!strcmp(opt, "port")) {
332 } else if (!strcmp(opt, "mds_sec")) {
333 strncpy(lmd->lmd_mds_security, opteq + 1,
334 sizeof(lmd->lmd_mds_security));
335 } else if (!strcmp(opt, "oss_sec")) {
336 strncpy(lmd->lmd_oss_security, opteq + 1,
337 sizeof(lmd->lmd_oss_security));
338 } else if (!strcmp(opt, "nllu")) {
339 if (parse_nllu(lmd, opteq + 1)) {
340 fprintf(stderr, "%s: "
341 "can't parse user: %s\n",
342 progname, opteq + 1);
345 } else if (!strcmp(opt, "nllg")) {
346 if (parse_nllg(lmd, opteq + 1)) {
347 fprintf(stderr, "%s: "
348 "can't parse group: %s\n",
349 progname, opteq + 1);
354 if (!strcmp(opt, "remote")) {
355 lmd->lmd_remote_flag = OBD_CONNECT_REMOTE;
356 } else if (!strcmp(opt, "local")) {
357 lmd->lmd_remote_flag = OBD_CONNECT_LOCAL;
358 } else if (!strcmp(opt, "async")) {
362 if (!strncmp(opt, "no", 2)) {
366 if (!strcmp(opt, "debug")) {
376 get_local_elan_id(char *fname, char *buf)
378 FILE *fp = fopen(fname, "r");
384 rc = fscanf(fp, "NodeId %255s", buf);
388 return (rc == 1) ? 0 : -1;
392 set_local(struct lustre_mount_data *lmd)
395 * XXX PtlGetId() will be safer if portals is loaded and
396 * initialised correctly at this time... */
401 if (lmd->lmd_local_nid != PTL_NID_ANY)
404 memset(buf, 0, sizeof(buf));
406 switch (lmd->lmd_nal) {
408 fprintf(stderr, "%s: Unknown network type: %d\n",
409 progname, lmd->lmd_nal);
428 rc = gethostname(buf, sizeof(buf) - 1);
430 fprintf(stderr, "%s: can't get hostname: %s\n",
431 progname, strerror(rc));
436 /* for 2.6 kernels, reserve at least 8MB free, or we will
437 * go OOM during heavy read load */
438 if (rc == 0 && strncmp(uts.release, "2.6", 3) == 0) {
439 int f, minfree = 32768;
440 char name[40], val[40];
443 meminfo = fopen("/proc/meminfo", "r");
444 if (meminfo != NULL) {
445 while (fscanf(meminfo, "%s %s %*s\n", name, val) != EOF) {
446 if (strcmp(name, "MemTotal:") == 0) {
447 f = strtol(val, NULL, 0);
448 if (f > 0 && f < 8 * minfree)
455 f = open("/proc/sys/vm/min_free_kbytes", O_WRONLY);
457 sprintf(val, "%d", minfree);
458 write(f, val, strlen(val));
467 char *pfiles[] = {"/proc/qsnet/elan3/device0/position",
468 "/proc/qsnet/elan4/device0/position",
469 "/proc/elan/device0/position",
474 rc = get_local_elan_id(pfiles[i], buf);
475 } while (rc != 0 && pfiles[++i] != NULL);
478 fprintf(stderr, "%s: can't read Elan ID from /proc\n",
488 if (ptl_parse_nid (&nid, buf) != 0) {
489 fprintf (stderr, "%s: can't parse NID %s\n", progname, buf);
493 lmd->lmd_local_nid = nid + lmd_cluster_id;
498 set_peer(char *hostname, struct lustre_mount_data *lmd)
503 switch (lmd->lmd_nal) {
505 fprintf(stderr, "%s: Unknown network type: %d\n",
506 progname, lmd->lmd_nal);
511 lmd->lmd_server_nid = strtoll(hostname,0,0);
517 if (lmd->lmd_server_nid != PTL_NID_ANY)
519 if (ptl_parse_nid (&nid, hostname) != 0) {
520 fprintf (stderr, "%s: can't parse NID %s\n",
524 lmd->lmd_server_nid = nid;
533 if (lmd->lmd_server_nid == PTL_NID_ANY) {
534 if (ptl_parse_nid (&nid, hostname) != 0) {
535 fprintf (stderr, "%s: can't parse NID %s\n",
539 lmd->lmd_server_nid = nid;
542 if (ptl_parse_ipaddr(&lmd->lmd_server_ipaddr, hostname) != 0) {
543 fprintf (stderr, "%s: can't parse host %s\n",
553 if (lmd->lmd_server_nid != PTL_NID_ANY)
556 rc = sscanf(hostname, "%*[^0-9]%63[0-9]", buf);
558 fprintf (stderr, "%s: can't get elan id from host %s\n",
562 if (ptl_parse_nid (&nid, buf) != 0) {
563 fprintf (stderr, "%s: can't parse NID %s\n",
567 lmd->lmd_server_nid = nid;
577 build_data(char *source, char *options, struct lustre_mount_data *lmd)
580 char *hostname = NULL, *mds = NULL, *profile = NULL, *s;
583 if (lmd_bad_magic(lmd))
586 if (strlen(source) > sizeof(buf) + 1) {
587 fprintf(stderr, "%s: host:/mds/profile argument too long\n",
592 if ((s = strchr(buf, ':'))) {
599 if ((s = strchr(mds, '/'))) {
603 fprintf(stderr, "%s: directory to mount not in "
604 "host:/mds/profile format\n",
609 fprintf(stderr, "%s: "
610 "directory to mount not in host:/mds/profile format\n",
615 rc = parse_options(options, lmd);
623 rc = set_peer(hostname, lmd);
626 if (strlen(mds) > sizeof(lmd->lmd_mds) + 1) {
627 fprintf(stderr, "%s: mds name too long\n", progname);
630 strcpy(lmd->lmd_mds, mds);
632 if (strlen(profile) > sizeof(lmd->lmd_profile) + 1) {
633 fprintf(stderr, "%s: profile name too long\n", progname);
636 strcpy(lmd->lmd_profile, profile);
643 static int set_routes(struct lustre_mount_data *lmd) {
644 struct portals_cfg pcfg;
645 struct portal_ioctl_data data;
646 int i, j, route_exists, rc, err = 0;
648 register_ioc_dev(PORTALS_DEV_ID, PORTALS_DEV_PATH);
650 for (i = 0; i < route_index; i++) {
652 /* Check for existing routes so as not to add duplicates */
654 PCFG_INIT(pcfg, NAL_CMD_GET_ROUTE);
655 pcfg.pcfg_nal = ROUTER;
658 PORTAL_IOC_INIT(data);
659 data.ioc_pbuf1 = (char*)&pcfg;
660 data.ioc_plen1 = sizeof(pcfg);
661 data.ioc_nid = pcfg.pcfg_nid;
663 rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_NAL_CMD, &data);
669 if ((pcfg.pcfg_gw_nal == lmd->lmd_nal) &&
670 (pcfg.pcfg_nid == routes[i].gw) &&
671 (pcfg.pcfg_nid2 == routes[i].lo) &&
672 (pcfg.pcfg_nid3 == routes[i].hi)) {
681 PCFG_INIT(pcfg, NAL_CMD_ADD_ROUTE);
682 pcfg.pcfg_nid = routes[i].gw;
683 pcfg.pcfg_nal = ROUTER;
684 pcfg.pcfg_gw_nal = lmd->lmd_nal;
685 pcfg.pcfg_nid2 = MIN(routes[i].lo, routes[i].hi);
686 pcfg.pcfg_nid3 = MAX(routes[i].lo, routes[i].hi);
688 PORTAL_IOC_INIT(data);
689 data.ioc_pbuf1 = (char*)&pcfg;
690 data.ioc_plen1 = sizeof(pcfg);
691 data.ioc_nid = pcfg.pcfg_nid;
693 rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_NAL_CMD, &data);
695 fprintf(stderr, "%s: Unable to add route "
696 LPX64" : "LPX64" - "LPX64"\n[%d] %s\n",
697 progname, routes[i].gw, routes[i].lo,
698 routes[i].hi, errno, strerror(errno));
704 unregister_ioc_dev(PORTALS_DEV_ID);
708 void usage(FILE *out)
710 fprintf(out, "usage: %s <source> <target> [-f] [-v] [-n] [-o mntopt]\n",
715 int main(int argc, char *const argv[])
717 char *source, *target, *options = "";
718 int i, nargs = 3, opt, rc;
719 struct lustre_mount_data lmd;
720 static struct option long_opt[] = {
721 {"force", 0, 0, 'f'},
723 {"nomtab", 0, 0, 'n'},
724 {"options", 1, 0, 'o'},
725 {"verbose", 0, 0, 'v'},
729 progname = strrchr(argv[0], '/');
730 progname = progname ? progname + 1 : argv[0];
732 while ((opt = getopt_long(argc, argv, "fno:v", long_opt, NULL)) != EOF){
736 printf("force: %d\n", force);
744 printf("nomtab: %d\n", nomtab);
753 printf("verbose: %d\n", verbose);
757 fprintf(stderr, "%s: unknown option '%c'\n",
764 if (optind + 2 > argc) {
765 fprintf(stderr, "%s: too few arguments\n", progname);
769 source = argv[optind];
770 target = argv[optind + 1];
773 for (i = 0; i < argc; i++)
774 printf("arg[%d] = %s\n", i, argv[i]);
775 printf("source = %s, target = %s\n", source, target);
778 if (check_mtab_entry(source, target, "lustre"))
782 rc = build_data(source, options, &lmd);
787 rc = set_routes(&lmd);
793 printf("%s: debug mode, not mounting\n", progname);
797 rc = access(target, F_OK);
800 fprintf(stderr, "%s: %s inaccessible: %s\n", progname, target,
805 rc = mount(source, target, "lustre", 0, (void *)&lmd);
809 fprintf(stderr, "%s: mount(%s, %s) failed: %s\n", source,
810 target, progname, strerror(errno));
812 fprintf(stderr, "Are the lustre modules loaded?\n"
813 "Check /etc/modules.conf and /proc/filesystems\n");
816 update_mtab_entry(source, target, "lustre", options, 0, 0, 0);