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_security, "null", sizeof(lmd->lmd_security));
132 print_options(struct lustre_mount_data *lmd)
136 printf("mds: %s\n", lmd->lmd_mds);
137 printf("profile: %s\n", lmd->lmd_profile);
138 printf("sec_flavor: %s\n", lmd->lmd_security);
139 printf("server_nid: "LPX64"\n", lmd->lmd_server_nid);
141 if (lmd->lmd_nal != CRAY_KB_SSNAL) {
143 printf("local_nid: "LPX64"\n", lmd->lmd_local_nid);
147 printf("nal: %x\n", lmd->lmd_nal);
149 if (lmd->lmd_nal != CRAY_KB_SSNAL) {
151 printf("server_ipaddr: 0x%x\n", lmd->lmd_server_ipaddr);
152 printf("port: %d\n", lmd->lmd_port);
157 for (i = 0; i < route_index; i++)
158 printf("route: "LPX64" : "LPX64" - "LPX64"\n",
159 routes[i].gw, routes[i].lo, routes[i].hi);
164 static int parse_route(char *opteq, char *opttgts)
166 char *gw_lo_ptr, *gw_hi_ptr, *tgt_lo_ptr, *tgt_hi_ptr;
167 ptl_nid_t gw_lo, gw_hi, tgt_lo, tgt_hi;
170 gw_lo_ptr = opteq + 1;
171 if (!(gw_hi_ptr = strchr(gw_lo_ptr, '-'))) {
172 gw_hi_ptr = gw_lo_ptr;
178 if (ptl_parse_nid(&gw_lo, gw_lo_ptr) != 0) {
179 fprintf(stderr, "%s: can't parse NID %s\n", progname,gw_lo_ptr);
183 if (ptl_parse_nid(&gw_hi, gw_hi_ptr) != 0) {
184 fprintf(stderr, "%s: can't parse NID %s\n", progname,gw_hi_ptr);
188 tgt_lo_ptr = opttgts + 1;
189 if (!(tgt_hi_ptr = strchr(tgt_lo_ptr, '-'))) {
190 tgt_hi_ptr = tgt_lo_ptr;
192 tgt_hi_ptr[0] = '\0';
196 if (ptl_parse_nid(&tgt_lo, tgt_lo_ptr) != 0) {
197 fprintf(stderr, "%s: can't parse NID %s\n",progname,tgt_lo_ptr);
201 if (ptl_parse_nid(&tgt_hi, tgt_hi_ptr) != 0) {
202 fprintf(stderr, "%s: can't parse NID %s\n",progname,tgt_hi_ptr);
206 while (gw_lo <= gw_hi) {
207 if (route_index >= MAX_ROUTES) {
208 fprintf(stderr, "%s: to many routes %d\n",
209 progname, MAX_ROUTES);
213 routes[route_index].gw = gw_lo;
214 routes[route_index].lo = tgt_lo;
215 routes[route_index].hi = tgt_hi;
224 * here all what we do is gurantee the result is exactly
225 * what user intend to get, no ambiguous. maybe there have
226 * simpler library call could do the same job for us?
228 static int parse_u32(char *str, uint32_t *res)
233 id = strtol(str, &endptr, 0);
234 if (endptr && *endptr != 0)
237 if (id == LONG_MAX || id == LONG_MIN)
240 if ((uint32_t)id != id)
243 *res = (uint32_t) id;
247 static int parse_nllu(struct lustre_mount_data *lmd, char *str_nllu)
251 if (parse_u32(str_nllu, &lmd->lmd_nllu) == 0)
254 pass = getpwnam(str_nllu);
258 lmd->lmd_nllu = pass->pw_uid;
262 static int parse_nllg(struct lustre_mount_data *lmd, char *str_nllg)
266 if (parse_u32(str_nllg, &lmd->lmd_nllg) == 0)
269 grp = getgrnam(str_nllg);
273 lmd->lmd_nllg = grp->gr_gid;
277 int parse_options(char * options, struct lustre_mount_data *lmd)
279 ptl_nid_t nid = 0, cluster_id = 0;
281 char *opt, *opteq, *opttgts;
283 /* parsing ideas here taken from util-linux/mount/nfsmount.c */
284 for (opt = strtok(options, ","); opt; opt = strtok(NULL, ",")) {
285 if ((opteq = strchr(opt, '='))) {
286 val = atoi(opteq + 1);
288 if (!strcmp(opt, "nettype")) {
289 lmd->lmd_nal = ptl_name2nal(opteq + 1);
290 if (lmd->lmd_nal < 0) {
291 fprintf(stderr, "%s: can't parse NET "
292 "%s\n", progname, opteq + 1);
295 } else if(!strcmp(opt, "cluster_id")) {
296 if (ptl_parse_nid(&cluster_id, opteq+1) != 0) {
297 fprintf (stderr, "%s: can't parse NID "
298 "%s\n", progname, opteq+1);
301 lmd_cluster_id = cluster_id;
302 } else if(!strcmp(opt, "route")) {
303 if (!(opttgts = strchr(opteq + 1, ':'))) {
304 fprintf(stderr, "%s: Route must be "
305 "of the form: route="
306 "<gw>[-<gw>]:<low>[-<high>]\n",
310 parse_route(opteq, opttgts);
311 } else if (!strcmp(opt, "local_nid")) {
312 if (ptl_parse_nid(&nid, opteq + 1) != 0) {
313 fprintf (stderr, "%s: "
314 "can't parse NID %s\n",
319 lmd->lmd_local_nid = nid;
320 } else if (!strcmp(opt, "server_nid")) {
321 if (ptl_parse_nid(&nid, opteq + 1) != 0) {
322 fprintf (stderr, "%s: "
323 "can't parse NID %s\n",
324 progname, opteq + 1);
327 lmd->lmd_server_nid = nid;
328 } else if (!strcmp(opt, "port")) {
330 } else if (!strcmp(opt, "sec")) {
331 strncpy(lmd->lmd_security, opteq + 1,
332 sizeof(lmd->lmd_security));
333 } else if (!strcmp(opt, "nllu")) {
334 if (parse_nllu(lmd, opteq + 1)) {
335 fprintf(stderr, "%s: "
336 "can't parse user: %s\n",
337 progname, opteq + 1);
340 } else if (!strcmp(opt, "nllg")) {
341 if (parse_nllg(lmd, opteq + 1)) {
342 fprintf(stderr, "%s: "
343 "can't parse group: %s\n",
344 progname, opteq + 1);
349 if (!strcmp(opt, "remote")) {
350 lmd->lmd_remote_flag = OBD_CONNECT_REMOTE;
351 } else if (!strcmp(opt, "local")) {
352 lmd->lmd_remote_flag = OBD_CONNECT_LOCAL;
353 } else if (!strcmp(opt, "async")) {
357 if (!strncmp(opt, "no", 2)) {
361 if (!strcmp(opt, "debug")) {
371 get_local_elan_id(char *fname, char *buf)
373 FILE *fp = fopen(fname, "r");
379 rc = fscanf(fp, "NodeId %255s", buf);
383 return (rc == 1) ? 0 : -1;
387 set_local(struct lustre_mount_data *lmd)
390 * XXX PtlGetId() will be safer if portals is loaded and
391 * initialised correctly at this time... */
396 if (lmd->lmd_local_nid != PTL_NID_ANY)
399 memset(buf, 0, sizeof(buf));
401 switch (lmd->lmd_nal) {
403 fprintf(stderr, "%s: Unknown network type: %d\n",
404 progname, lmd->lmd_nal);
423 rc = gethostname(buf, sizeof(buf) - 1);
425 fprintf(stderr, "%s: can't get hostname: %s\n",
426 progname, strerror(rc));
431 /* for 2.6 kernels, reserve at least 8MB free, or we will
432 * go OOM during heavy read load */
433 if (rc == 0 && strncmp(uts.release, "2.6", 3) == 0) {
434 int f, minfree = 32768;
435 char name[40], val[40];
438 meminfo = fopen("/proc/meminfo", "r");
439 if (meminfo != NULL) {
440 while (fscanf(meminfo, "%s %s %*s\n", name, val) != EOF) {
441 if (strcmp(name, "MemTotal:") == 0) {
442 f = strtol(val, NULL, 0);
443 if (f > 0 && f < 8 * minfree)
450 f = open("/proc/sys/vm/min_free_kbytes", O_WRONLY);
452 sprintf(val, "%d", minfree);
453 write(f, val, strlen(val));
462 char *pfiles[] = {"/proc/qsnet/elan3/device0/position",
463 "/proc/qsnet/elan4/device0/position",
464 "/proc/elan/device0/position",
469 rc = get_local_elan_id(pfiles[i], buf);
470 } while (rc != 0 && pfiles[++i] != NULL);
473 fprintf(stderr, "%s: can't read Elan ID from /proc\n",
483 if (ptl_parse_nid (&nid, buf) != 0) {
484 fprintf (stderr, "%s: can't parse NID %s\n", progname, buf);
488 lmd->lmd_local_nid = nid + lmd_cluster_id;
493 set_peer(char *hostname, struct lustre_mount_data *lmd)
498 switch (lmd->lmd_nal) {
500 fprintf(stderr, "%s: Unknown network type: %d\n",
501 progname, lmd->lmd_nal);
506 lmd->lmd_server_nid = strtoll(hostname,0,0);
512 if (lmd->lmd_server_nid != PTL_NID_ANY)
514 if (ptl_parse_nid (&nid, hostname) != 0) {
515 fprintf (stderr, "%s: can't parse NID %s\n",
519 lmd->lmd_server_nid = nid;
528 if (lmd->lmd_server_nid == PTL_NID_ANY) {
529 if (ptl_parse_nid (&nid, hostname) != 0) {
530 fprintf (stderr, "%s: can't parse NID %s\n",
534 lmd->lmd_server_nid = nid;
537 if (ptl_parse_ipaddr(&lmd->lmd_server_ipaddr, hostname) != 0) {
538 fprintf (stderr, "%s: can't parse host %s\n",
548 if (lmd->lmd_server_nid != PTL_NID_ANY)
551 rc = sscanf(hostname, "%*[^0-9]%63[0-9]", buf);
553 fprintf (stderr, "%s: can't get elan id from host %s\n",
557 if (ptl_parse_nid (&nid, buf) != 0) {
558 fprintf (stderr, "%s: can't parse NID %s\n",
562 lmd->lmd_server_nid = nid;
572 build_data(char *source, char *options, struct lustre_mount_data *lmd)
575 char *hostname = NULL, *mds = NULL, *profile = NULL, *s;
578 if (lmd_bad_magic(lmd))
581 if (strlen(source) > sizeof(buf) + 1) {
582 fprintf(stderr, "%s: host:/mds/profile argument too long\n",
587 if ((s = strchr(buf, ':'))) {
594 if ((s = strchr(mds, '/'))) {
598 fprintf(stderr, "%s: directory to mount not in "
599 "host:/mds/profile format\n",
604 fprintf(stderr, "%s: "
605 "directory to mount not in host:/mds/profile format\n",
610 rc = parse_options(options, lmd);
618 rc = set_peer(hostname, lmd);
621 if (strlen(mds) > sizeof(lmd->lmd_mds) + 1) {
622 fprintf(stderr, "%s: mds name too long\n", progname);
625 strcpy(lmd->lmd_mds, mds);
627 if (strlen(profile) > sizeof(lmd->lmd_profile) + 1) {
628 fprintf(stderr, "%s: profile name too long\n", progname);
631 strcpy(lmd->lmd_profile, profile);
638 static int set_routes(struct lustre_mount_data *lmd) {
639 struct portals_cfg pcfg;
640 struct portal_ioctl_data data;
641 int i, j, route_exists, rc, err = 0;
643 register_ioc_dev(PORTALS_DEV_ID, PORTALS_DEV_PATH);
645 for (i = 0; i < route_index; i++) {
647 /* Check for existing routes so as not to add duplicates */
649 PCFG_INIT(pcfg, NAL_CMD_GET_ROUTE);
650 pcfg.pcfg_nal = ROUTER;
653 PORTAL_IOC_INIT(data);
654 data.ioc_pbuf1 = (char*)&pcfg;
655 data.ioc_plen1 = sizeof(pcfg);
656 data.ioc_nid = pcfg.pcfg_nid;
658 rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_NAL_CMD, &data);
664 if ((pcfg.pcfg_gw_nal == lmd->lmd_nal) &&
665 (pcfg.pcfg_nid == routes[i].gw) &&
666 (pcfg.pcfg_nid2 == routes[i].lo) &&
667 (pcfg.pcfg_nid3 == routes[i].hi)) {
676 PCFG_INIT(pcfg, NAL_CMD_ADD_ROUTE);
677 pcfg.pcfg_nid = routes[i].gw;
678 pcfg.pcfg_nal = ROUTER;
679 pcfg.pcfg_gw_nal = lmd->lmd_nal;
680 pcfg.pcfg_nid2 = MIN(routes[i].lo, routes[i].hi);
681 pcfg.pcfg_nid3 = MAX(routes[i].lo, routes[i].hi);
683 PORTAL_IOC_INIT(data);
684 data.ioc_pbuf1 = (char*)&pcfg;
685 data.ioc_plen1 = sizeof(pcfg);
686 data.ioc_nid = pcfg.pcfg_nid;
688 rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_NAL_CMD, &data);
690 fprintf(stderr, "%s: Unable to add route "
691 LPX64" : "LPX64" - "LPX64"\n[%d] %s\n",
692 progname, routes[i].gw, routes[i].lo,
693 routes[i].hi, errno, strerror(errno));
699 unregister_ioc_dev(PORTALS_DEV_ID);
703 void usage(FILE *out)
705 fprintf(out, "usage: %s <source> <target> [-f] [-v] [-n] [-o mntopt]\n",
710 int main(int argc, char *const argv[])
712 char *source, *target, *options = "";
713 int i, nargs = 3, opt, rc;
714 struct lustre_mount_data lmd;
715 static struct option long_opt[] = {
716 {"force", 0, 0, 'f'},
718 {"nomtab", 0, 0, 'n'},
719 {"options", 1, 0, 'o'},
720 {"verbose", 0, 0, 'v'},
724 progname = strrchr(argv[0], '/');
725 progname = progname ? progname + 1 : argv[0];
727 while ((opt = getopt_long(argc, argv, "fno:v", long_opt, NULL)) != EOF){
731 printf("force: %d\n", force);
739 printf("nomtab: %d\n", nomtab);
748 printf("verbose: %d\n", verbose);
752 fprintf(stderr, "%s: unknown option '%c'\n",
759 if (optind + 2 > argc) {
760 fprintf(stderr, "%s: too few arguments\n", progname);
764 source = argv[optind];
765 target = argv[optind + 1];
768 for (i = 0; i < argc; i++)
769 printf("arg[%d] = %s\n", i, argv[i]);
770 printf("source = %s, target = %s\n", source, target);
773 if (check_mtab_entry(source, target, "lustre"))
777 rc = build_data(source, options, &lmd);
782 rc = set_routes(&lmd);
788 printf("%s: debug mode, not mounting\n", progname);
792 rc = access(target, F_OK);
795 fprintf(stderr, "%s: %s inaccessible: %s\n", progname, target,
800 rc = mount(source, target, "lustre", 0, (void *)&lmd);
804 fprintf(stderr, "%s: mount(%s, %s) failed: %s\n", source,
805 target, progname, strerror(errno));
807 fprintf(stderr, "Are the lustre modules loaded?\n"
808 "Check /etc/modules.conf and /proc/filesystems\n");
811 update_mtab_entry(source, target, "lustre", options, 0, 0, 0);