2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * Implementation of the volume operations used by the AFS user
16 * --------------------- Required definitions ---------------------
18 #include <afsconfig.h>
19 #include <afs/param.h>
22 #include "uss_vol.h" /*Interface to this module */
23 #include "uss_common.h" /*Common definitions */
24 #include "uss_procs.h" /*Defs from procs module */
25 #include "uss_fs.h" /*CacheManager ops */
34 #include <afs/com_err.h>
35 #include <afs/vlserver.h>
36 #include <afs/vldbint.h>
38 #include <afs/cellconfig.h>
39 #include <rx/rx_globals.h>
40 #include <afs/volser.h>
41 #include <afs/volser_prototypes.h>
42 #include <afs/volint.h>
44 #include <afs/afsutil.h>
50 * ---------------------- Private definitions ---------------------
53 #undef USS_VOL_DB_SHOW_OVERRIDES
57 * --------------------- Exported definitions ---------------------
60 * The Volume Server interface imports the Ubik connection
61 * structure to use, expecting it to be named "cstruct". This
62 * is why we have two names here. Thus, the UV_CreateVolume()
63 * will work and we can avoid nasty little core dumps.
65 struct ubik_client *uconn_vldbP; /*Ubik connection struct */
66 struct ubik_client *cstruct; /*Required name for above */
69 * ------------------------ Private globals -----------------------
71 static int initDone = 0; /*Module initialized? */
72 static int NoAuthFlag = 0; /*Use -noauth? */
73 static struct rx_connection
74 *serverconns[VLDB_MAXSERVERS]; /*Connection(s) to VLDB
78 /*-----------------------------------------------------------------------
79 * static InitThisModule
82 * Set up this module, namely set up all the client state for
83 * dealing with the Volume Location Server(s), including
84 * network connections.
87 * a_noAuthFlag : Do we need authentication?
88 * a_confDir : Configuration directory to use.
89 * a_cellName : Cell we want to talk to.
92 * 0 if everything went fine, or
93 * lower-level error code otherwise.
96 * This routine will only be called once.
100 *------------------------------------------------------------------------*/
103 InitThisModule(int a_noAuthFlag, char *a_confDir, char *a_cellName)
104 { /*InitThisModule */
106 static char rn[] = "uss_vol:InitThisModule";
108 register afs_int32 code; /*Return code */
109 struct afsconf_dir *tdir; /*Ptr to conf dir info */
110 struct afsconf_cell info; /*Info about chosen cell */
111 struct ktc_principal sname; /*Service name */
112 struct ktc_token ttoken; /*Service ticket */
113 afs_int32 scIndex; /*Chosen security index */
114 struct rx_securityClass *sc; /*Generated security object */
115 afs_int32 i; /*Loop index */
118 * Only once, guys, will 'ya?
122 printf("[%s] Called multiple times!\n", rn);
123 #endif /* USS_VOL_DB */
128 * Set up our Rx environment.
131 printf("[%s] Initializing Rx environment\n", rn);
132 #endif /* USS_VOL_DB */
135 fprintf(stderr, "%s: Couldn't initialize Rx.\n", uss_whoami);
138 rx_SetRxDeadTime(50);
141 * Find out all about our configuration.
144 printf("[%s] Handling configuration info\n", rn);
145 #endif /* USS_VOL_DB */
146 tdir = afsconf_Open(a_confDir);
148 fprintf(stderr, "%s: Couldn't open configuration directory (%s).\n",
149 uss_whoami, a_confDir);
152 code = afsconf_GetCellInfo(tdir, a_cellName, AFSCONF_VLDBSERVICE, &info);
154 printf("%s: Can't find VLDB server(s) for cell %s\n", uss_whoami,
159 printf("[%s] Getting tickets if needed\n", rn);
160 #endif /* USS_VOL_DB */
163 * We don't need tickets for unauthenticated connections.
165 strcpy(sname.cell, info.name);
166 sname.instance[0] = 0;
167 strcpy(sname.name, "afs");
168 code = ktc_GetToken(&sname, &ttoken, sizeof(ttoken), NULL);
171 "%s: Couldn't get AFS tokens, running unauthenticated.\n",
176 * We got a ticket, go for an authenticated connection.
178 if (ttoken.kvno >= 0 && ttoken.kvno <= 256)
179 scIndex = 2; /*Kerberos */
181 fprintf(stderr, "%s: Funny kvno (%d) in ticket, proceeding\n",
182 uss_whoami, ttoken.kvno);
186 } /*Authentication desired */
191 * Generate the appropriate security object for the connection.
194 printf("[%s] Generating Rx security object\n", rn);
195 #endif /* USS_VOL_DB */
198 sc = (struct rx_securityClass *)
199 rxnull_NewClientSecurityObject();
206 sc = (struct rx_securityClass *)
207 rxkad_NewClientSecurityObject(rxkad_clear, &ttoken.sessionKey,
208 ttoken.kvno, ttoken.ticketLen,
214 * Tell UV module about default authentication.
217 printf("[%s] Setting UV security: obj 0x%x, index %d\n", rn, sc, scIndex);
218 #endif /* USS_VOL_DB */
219 UV_SetSecurity(sc, scIndex);
220 if (info.numServers > VLDB_MAXSERVERS) {
221 fprintf(stderr, "%s: info.numServers=%d (> VLDB_MAXSERVERS=%d)\n",
222 uss_whoami, info.numServers, VLDB_MAXSERVERS);
227 * Connect to each VLDB server for the chosen cell.
229 for (i = 0; i < info.numServers; i++) {
232 ("[%s] Connecting to VLDB server 0x%x, port %d, service id %d\n",
233 rn, info.hostAddr[i].sin_addr.s_addr, info.hostAddr[i].sin_port,
235 #endif /* USS_VOL_DB */
237 rx_NewConnection(info.hostAddr[i].sin_addr.s_addr,
238 info.hostAddr[i].sin_port, USER_SERVICE_ID, sc,
243 * Set up to execute Ubik transactions on the VLDB.
246 printf("[%s] Initializing Ubik interface\n", rn);
247 #endif /* USS_VOL_DB */
248 code = ubik_ClientInit(serverconns, &uconn_vldbP);
250 fprintf(stderr, "%s: Ubik client init failed.\n", uss_whoami);
254 printf("[%s] VLDB ubik connection structure at 0x%x\n", rn, uconn_vldbP);
255 #endif /* USS_VOL_DB */
258 * Place the ubik VLDB connection structure in its advertised
261 cstruct = uconn_vldbP;
269 } /*InitThisModule */
272 /*-----------------------------------------------------------------------
273 * static HostIDToHostName
276 * Given a host ID (in network byte order), figure out the
277 * corresponding host name.
280 * a_hostID : Host ID in network byte order.
281 * a_hostName : Ptr to host name buffer.
287 * This routine simply calls the hostutil_GetNameByINet()
288 * function exported by the utility library (util.a).
292 *------------------------------------------------------------------------*/
295 HostIDToHostName(afs_int32 a_hostID, char *a_hostName)
296 { /*HostIDToHostName */
298 strcpy(a_hostName, hostutil_GetNameByINet(a_hostID));
300 } /*HostIDToHostName */
303 /*-----------------------------------------------------------------------
304 * static PartIDToPartName
307 * Given a partition ID (in network byte order), figure out the
308 * corresponding partition name.
311 * a_partID : Partition ID in network byte order.
312 * a_partName : Ptr to partition name buffer.
315 * 0 if everything went well, or
316 * -1 if the given partition ID couldn't be translated.
319 * Nothing interesting.
323 *------------------------------------------------------------------------*/
326 PartIDToPartName(afs_int32 a_partID, char *a_partName)
327 { /*PartIDToPartName */
329 static char rn[] = "PartIDToPartName";
332 printf("[%s] Translating partition id %d to its name\n", rn, a_partID);
333 #endif /* USS_VOL_DB */
335 if ((a_partID < 0) || (a_partID > VOLMAXPARTS))
339 strcpy(a_partName, "/vicep");
340 a_partName[6] = a_partID + 'a';
341 a_partName[7] = '\0';
343 strcpy(a_partName, "/vicep");
345 a_partName[6] = 'a' + (a_partID / 26);
346 a_partName[7] = 'a' + (a_partID % 26);
347 a_partName[8] = '\0';
351 printf("[%s] Translation for part ID %d is '%s'\n", rn, a_partID,
353 #endif /* USS_VOL_DB */
356 } /*PartIDToPartName */
359 /*------------------------------------------------------------------------
360 * EXPORTED uss_Vol_GetServer
363 * Nothing interesting.
367 *------------------------------------------------------------------------*/
370 uss_vol_GetServer(char *a_name)
371 { /*uss_vol_GetServer */
373 register struct hostent *th;
375 afs_int32 b1, b2, b3, b4;
376 register afs_int32 code;
378 code = sscanf(a_name, "%d.%d.%d.%d", &b1, &b2, &b3, &b4);
381 * Parsed as 128.2.9.4, or similar; return it in network
382 * byte order (128 in byte 0).
384 addr = (b1 << 24) | (b2 << 16) | (b3 << 8) | b4;
388 th = gethostbyname(a_name);
391 memcpy(&addr, th->h_addr, sizeof(addr));
394 } /*uss_vol_GetServer */
396 /* XXX - This function is unused, and could be deleted */
398 /*------------------------------------------------------------------------
399 * static GetVolumeType
402 * Translate the given char string representing a volume type to the
403 * numeric representation.
406 * a_type : Char string volume type.
409 * One of ROVOL, RWVOL, BACKVOL, or -1 on failure.
412 * Nothing interesting.
416 *------------------------------------------------------------------------*/
419 GetVolumeType(char *a_type)
422 if (!strcmp(a_type, "ro"))
424 else if (!strcmp(a_type, "rw"))
426 else if (!strcmp(a_type, "bk"))
434 /*------------------------------------------------------------------------
435 * EXPORTED uss_Vol_GetPartitionID
438 * It is assumed that partition names may begin with ``/vicep''.
442 *------------------------------------------------------------------------*/
445 uss_vol_GetPartitionID(char *a_name)
446 { /*uss_vol_GetPartitionID */
456 * Numbers go straight through.
458 if (tc >= '0' && tc <= '9') {
459 return (atoi(a_name));
463 * Otherwise, check for vicepa or /vicepa, or just plain "a"
466 if (strlen(a_name) <= 2) {
467 strcpy(ascii, a_name);
468 } else if (!strncmp(a_name, "/vicep", 6)) {
469 strncpy(ascii, a_name + 6, 2);
470 } else if (!strncmp(a_name, "vicep", 5)) {
471 strncpy(ascii, a_name + 5, 2);
476 * Now, partitions are named /vicepa ... /vicepz, /vicepaa, /vicepab,
477 * .../vicepzz, and are numbered from 0. Do the appropriate conversion.
481 * Single-char name, 0..25
483 if (ascii[0] < 'a' || ascii[0] > 'z')
484 return (-1); /* wrongo */
485 return (ascii[0] - 'a');
488 * Two-char name, 26 .. <whatever>
490 if (ascii[0] < 'a' || ascii[0] > 'z')
492 if (ascii[1] < 'a' || ascii[1] > 'z')
494 return ((ascii[0] - 'a') * 26 + (ascii[1] - 'a') + 26);
496 } /*uss_vol_GetPartitionID */
499 /*-----------------------------------------------------------------------
500 * static CheckDoubleMount
503 * Make sure we're not trying to mount a volume in the same place
507 * a_mp : Mountpoint pathname to check.
508 * a_oldmp : Ptr to buffer into which the old value of the
509 * mountpoint is placed (if any).
512 * 0 if the volume was not previously mounted.
513 * uss_procs_ANCIENT if there was already a mountpoint AND the
514 * user was already recorded in the password
516 * uss_procs_YOUNG if there was a mountpoint for the user taken
517 * from the directory pool, yet the user was not
518 * yet in the password file.
521 * Nothing interesting.
524 * May fill in the a_oldmp buffer with the value of the old
526 *------------------------------------------------------------------------*/
529 CheckDoubleMount(char *a_mp, char *a_oldmp)
530 { /*CheckDoubleMount */
533 static char rn[] = "uss_vol:CheckDoubleMount";
535 int start, len, mlen, tlen;
540 pws = getpwuid(atoi(uss_Uid));
543 * User exists in the password file, so they've been fully
544 * created and integrated. Return the ``ancient'' mountpoint.
546 strcpy(a_oldmp, pws->pw_dir);
547 return (uss_procs_ANCIENT);
552 * $AUTO used. Search among the possible directories.
554 len = strlen(uss_Auto);
556 while (strncmp(&a_mp[i], uss_Auto, len)) {
557 a_oldmp[i] = a_mp[i];
558 if (++i > (mlen - len)) {
563 if ((start = i) != -1) {
565 * $AUTO used in mountpoint.
567 for (i = 0; i < uss_NumGroups; i++) {
569 * Copy in the base and tail components.
571 tlen = strlen(uss_DirPool[i]);
572 strncpy(&a_oldmp[start], uss_DirPool[i], tlen);
573 strcpy(&a_oldmp[start + tlen], &a_mp[start + len]);
575 printf("%s: Checking '%s' for mount point\n", rn, a_oldmp);
576 #endif /* USS_VOL_DB */
577 if (lstat(a_oldmp, &stbuf) == 0) /*mp exists */
578 if (strcmp(a_oldmp, a_mp))
579 /* and is different */
581 * The old mount point exists and is different
582 * from the current one, so return the fact
583 * that we have a ``young'' mountpoint.
585 return (uss_procs_YOUNG);
586 } /*Check each $AUTO directory */
590 /*$AUTO has been used */
592 * No luck finding the old mount point, so we just return that
593 * this is the first time we've seen this volume.
597 } /*CheckDoubleMount */
600 /*------------------------------------------------------------------------
601 * EXPORTED uss_vol_CreateVol
604 * Called from the code generated by the uss grammar.
608 *------------------------------------------------------------------------*/
611 uss_vol_CreateVol(char *a_volname, char *a_server, char *a_partition,
612 char *a_quota, char *a_mpoint, char *a_owner,
614 { /*uss_vol_CreateVol */
616 static char rn[] = "uss_vol_CreateVol"; /*Routine name */
618 afs_int32 pname; /*Partition name */
619 afs_uint32 volid; /*Volume ID */
620 afs_int32 code; /*return code */
621 afs_int32 saddr; /*Socket info for server */
622 int VolExistFlag = 0; /*Does the volume exist? */
623 int mpExistFlag = 0; /*Does the mountpoint exist? */
624 char *Oldmpoint = NULL; /*Old mountpoint name, if any */
625 char tmp_str[uss_MAX_SIZE]; /*Useful string buffer */
626 int o; /*Owner's user id */
627 char userinput[64]; /*User's input */
628 struct uss_subdir *new_dir; /*Used to remember original ACL */
631 * Don't do anything if there's already a problem.
637 fprintf(stderr, "%s:uss_vol_CreateVol params:\n", rn);
639 "%s: volname '%s', server '%s', partition '%s', quota '%s', mpoint '%s', owner '%s', acl '%s'\n",
640 rn, a_volname, a_server, a_partition, a_quota, a_mpoint, a_owner,
642 #endif /* USS_VOL_DB */
645 * All of the parameters passed in are taken from the template
646 * file. Override these values if the user has explicitly set
647 * them, namely if the uss commons have non-null strings.
649 if (uss_Server[0] != '\0') {
650 #ifdef USS_VOL_DB_SHOW_OVERRIDES
653 "%s: Overriding server field: template value is '%s', overridden to '%s'\n",
654 rn, a_server, uss_Server);
655 #endif /* USS_VOL_DB_SHOW_OVERRIDES */
656 a_server = uss_Server;
659 if (uss_Partition[0] != '\0') {
660 #ifdef USS_VOL_DB_SHOW_OVERRIDES
663 "%s: Overriding partition field: template value is '%s', overridden to '%s'\n",
664 rn, a_partition, uss_Partition);
665 #endif /* USS_VOL_DB_SHOW_OVERRIDES */
666 a_partition = uss_Partition;
669 if (uss_MountPoint[0] != '\0') {
670 #ifdef USS_VOL_DB_SHOW_OVERRIDES
673 "%s: overriding mountpoint field: template value is '%s', overridden to '%s'\n",
674 rn, a_mpoint, uss_MountPoint);
675 #endif /* USS_VOL_DB_SHOW_OVERRIDES */
676 a_mpoint = uss_MountPoint;
678 #ifdef USS_VOL_DB_SHOW_OVERRIDES
679 printf("%s: Params after overrides:\n", uss_whoami);
681 ("%s: volname '%s', server '%s', partition '%s', quota '%s', mpoint '%s', owner '%s', acl '%s'\n",
682 uss_whoami, a_volname, a_server, a_partition, a_quota, a_mpoint,
684 #endif /* USS_VOL_DB_SHOW_OVERRIDES */
688 "Creating volume '%s' on server '%s', partition '%s'\n",
689 a_volname, a_server, a_partition);
691 saddr = uss_vol_GetServer(a_server);
693 uss_procs_PrintErr(line,
694 "File server '%s' not found in config info\n",
698 pname = uss_vol_GetPartitionID(a_partition);
700 uss_procs_PrintErr(line, "Couldn't interpret partition name '%s'\n",
706 * Make sure our VLDB connection(s) is/are set up before actually
707 * trying to perform a volume creation creation.
710 code = InitThisModule(NoAuthFlag, uss_ConfDir, uss_Cell);
712 afs_com_err(uss_whoami, code,
713 "while inititializing VLDB connection(s)\n");
717 /*Initialize VLDB connection(s) */
720 printf("%s: Creating volume on srv 0x%x, part %d, vol name '%s'\n",
721 rn, saddr, pname, a_volname);
722 #endif /* USS_VOL_DB */
723 code = UV_CreateVolume(saddr, pname, a_volname, &volid);
725 if (code == VL_NAMEEXIST) {
728 "%s: Warning; Volume '%s' exists, using existing one.\n",
729 uss_whoami, a_volname);
732 * We should get the volid here if we want to use it, but
733 * we don't need it right now. What we DO need, though, is
734 * to ask our caller if it's OK to overwrite the user's files
735 * if they're pre-existing.
737 if (!uss_OverwriteThisOne) {
739 ("Overwrite files in pre-existing '%s' volume? [y, n]: ",
741 scanf("%s", userinput);
742 if ((userinput[0] == 'y') || (userinput[0] == 'Y')) {
743 printf("\t[Overwriting allowed]\n");
744 uss_OverwriteThisOne = 1;
746 printf("\t[Overwriting not permitted]\n");
747 } /*Overwriting not previously allowed */
748 } /*Volume already existed */
750 uss_procs_PrintErr(line,
751 "Couldn't create volume '%s' [error %d]: %s\n",
752 a_volname, code, strerror(errno));
754 } /*Failure was NOT because it already existed */
755 } /*UV_CreateVolume failed */
759 "\t[Dry run: Creating volume '%s' on '%s', partition '%s']\n",
760 a_volname, a_server, a_partition);
763 /* OK, we want to make sure we don't double-mount the volume.
764 * If the volume existed, it can be the case that it is
765 * already mounted somewhere else (because of $AUTO or others).
766 * Let's check for that. Note: we never enter this portion of
767 * the code if we're doing a dry run.
770 if ((Oldmpoint = (char *)malloc(strlen(a_mpoint) + 50)) == NULL) {
771 fprintf(stderr, "%s: No more memory!\n", uss_whoami);
775 mpExistFlag = CheckDoubleMount(a_mpoint, Oldmpoint);
776 if (mpExistFlag == uss_procs_ANCIENT) {
778 "%s:\t*** WARNING ***; This user (%s) is already in passwd file (or equivalent). IGNORED.\n",
779 uss_whoami, uss_User);
781 uss_syntax_err = 1; /*I know, I know, it's not a SYNTAX error */
785 if (mpExistFlag == uss_procs_YOUNG) {
787 "%s: Warning; Volume '%s' is already mounted on %s. Using the existing one.\n",
788 uss_whoami, a_volname, Oldmpoint);
789 a_mpoint = Oldmpoint;
793 if (mpExistFlag == 0) {
794 extern int local_Cell;
799 sprintf(tmp_str, "#%s.", a_volname);
801 sprintf(tmp_str, "#%s:%s.", uss_Cell, a_volname);
803 if (symlink(tmp_str, a_mpoint)) {
804 if (errno == EEXIST) {
806 "%s: Warning: Mount point '%s' already exists.\n",
807 uss_whoami, a_mpoint);
810 "%s: Can't mount volume '%s' on '%s': %s\n",
811 uss_whoami, a_volname, a_mpoint, strerror(errno));
815 } /*There was already something mounted there */
819 fprintf(stderr, "\t[Dry run: Mounting '%s' at '%s']\n", tmp_str,
824 /*Mount point didn't already exist */
826 * Set the volume disk quota.
829 if ((code = uss_acl_SetDiskQuota(a_mpoint, atoi(a_quota))))
834 "\t[Dry run: Setting disk quota for '%s' to %s blocks]\n",
838 /*Copy mpoint into $MTPT for others to use */
839 strcpy(uss_MountPoint, a_mpoint);
841 o = uss_procs_GetOwner(a_owner);
843 if (chown(a_mpoint, o, -1)) {
845 "%s: Can't chown() mountpoint '%s' to owner '%s' (uid %d): %s\n",
846 uss_whoami, a_mpoint, a_owner, o, strerror(errno));
854 "\t[Dry run: chown() mountpoint '%s' to be owned by user]\n",
859 * Set the ACL on the user's home directory so that, for the duration of
860 * the account creation, only the uss_AccountCreator has any rights on the
861 * files therein. Make sure to clear this ACL to remove anyone that might
862 * already be there due to volume creation defaults. We will set this ACL
863 * properly, as well as all ACLs of future subdirectories,as the very last
864 * thing we do to the new account.
866 new_dir = (struct uss_subdir *)malloc(sizeof(struct uss_subdir));
867 new_dir->previous = uss_currentDir;
868 new_dir->path = (char *)malloc(strlen(a_mpoint) + 1);
869 strcpy(new_dir->path, a_mpoint);
870 new_dir->finalACL = (char *)malloc(strlen(a_acl) + 1);
871 strcpy(new_dir->finalACL, a_acl);
872 uss_currentDir = new_dir;
873 sprintf(tmp_str, "%s %s all", a_mpoint, uss_AccountCreator);
880 fprintf(stderr, "Setting ACL: '%s'\n", tmp_str);
881 if (uss_acl_SetAccess(tmp_str, 1, 0))
885 fprintf(stderr, "\t[Dry run: uss_acl_SetAccess(%s)]\n", tmp_str);
888 } /*uss_vol_CreateVol */
891 /*------------------------------------------------------------------------
892 * EXPORTED uss_vol_DeleteVol
895 * Nothing interesting.
899 *------------------------------------------------------------------------*/
902 uss_vol_DeleteVol(char *a_volName, afs_int32 a_volID, char *a_servName,
903 afs_int32 a_servID, char *a_partName, afs_int32 a_partID)
904 { /*uss_vol_DeleteVol */
907 static char rn[] = "uss_vol_DeleteVol"; /*Routine name */
909 register afs_int32 code = 0; /*Return code */
912 * Make sure we've initialized our VLDB connection(s) before
916 code = InitThisModule(NoAuthFlag, uss_ConfDir, uss_Cell);
923 * Go for the deletion.
927 ("%s: Deleting volume '%s' (ID %d) on FileServer '%s' (0x%x), partition '%s' (%d)\n",
928 rn, a_volName, a_volID, a_servName, a_servID, a_partName,
930 #endif /* USS_VOL_DB */
932 code = UV_DeleteVolume(a_servID, a_partID, a_volID);
934 printf("%s: Can't delete volume '%s'\n", uss_whoami, a_volName);
936 printf("\t[Dry run - volume '%s' NOT removed]\n", a_volName);
940 } /*uss_vol_DeleteVol */
943 /*------------------------------------------------------------------------
944 * static GetServerAndPart
947 * Given a VLDB entry, return the server and partition IDs for
948 * the read/write volume.
951 * a_vldbEntryP : Ptr to VLDB entry.
952 * a_servIDP : Ptr to server ID to set.
953 * a_partIDP : Ptr to partition ID to set.
956 * 0 if everything went well, or
960 * Nothing interesting.
964 *------------------------------------------------------------------------*/
967 GetServerAndPart(struct nvldbentry *a_vldbEntryP, afs_int32 *a_servIDP,
968 afs_int32 *a_partIDP)
969 { /*GetServerAndPart */
972 * It really looks like all we need to do is pull off the
973 * first entry's info.
975 *a_servIDP = a_vldbEntryP->serverNumber[0];
976 *a_partIDP = a_vldbEntryP->serverPartition[0];
979 } /*GetServerAndPart */
982 /*------------------------------------------------------------------------
983 * static ovlentry_to_nvlentry
986 * Converts a vldbentry to nvldbentry.
989 * oentryp IN : Ptr to vldbentry.
990 * nentryp OUT : Ptr to nvldbentry.
996 * Nothing interesting.
1000 *------------------------------------------------------------------------*/
1003 ovlentry_to_nvlentry(struct vldbentry *oentryp,
1004 struct nvldbentry *nentryp)
1008 memset(nentryp, 0, sizeof(struct nvldbentry));
1009 strncpy(nentryp->name, oentryp->name, sizeof(nentryp->name));
1010 for (i = 0; i < oentryp->nServers; i++) {
1011 nentryp->serverNumber[i] = oentryp->serverNumber[i];
1012 nentryp->serverPartition[i] = oentryp->serverPartition[i];
1013 nentryp->serverFlags[i] = oentryp->serverFlags[i];
1015 nentryp->nServers = oentryp->nServers;
1016 for (i = 0; i < MAXTYPES; i++)
1017 nentryp->volumeId[i] = oentryp->volumeId[i];
1018 nentryp->cloneId = oentryp->cloneId;
1019 nentryp->flags = oentryp->flags;
1023 /*------------------------------------------------------------------------
1024 * static uss_vol_GetEntryByID
1027 * Obtains a nvldbentry whether new or old forms of
1028 * ubik_VL_GetEntryByID are required.
1031 * cstruct : Ptr to ubik_client.
1032 * volid : Volume ID for which entry is being obtained.
1033 * voltype : Required volume type
1034 * entryp : Ptr to nvldbentry to receive the output on success.
1037 * 0 if everything went well, or
1038 * ubik return code otherwise.
1041 * Nothing interesting.
1045 *------------------------------------------------------------------------*/
1048 uss_vol_GetEntryByID(struct ubik_client *cstruct, afs_uint32 volid,
1049 afs_int32 voltype, struct nvldbentry *entryp)
1051 struct vldbentry oentry;
1054 code = ubik_VL_GetEntryByIDN(cstruct, 0, volid, voltype, entryp);
1055 if (code == RXGEN_OPCODE) {
1057 ubik_VL_GetEntryByID(cstruct, 0, volid, voltype, &oentry);
1059 ovlentry_to_nvlentry(&oentry, entryp);
1065 /*------------------------------------------------------------------------
1066 * EXPORTED uss_vol_GetVolInfoFromMountPoint
1069 * If the mountpoint path provided is not
1073 *------------------------------------------------------------------------*/
1076 uss_vol_GetVolInfoFromMountPoint(char *a_mountpoint)
1077 { /*uss_vol_GetVolInfoFromMountPoint */
1079 static char rn[] = "uss_vol_GetVolInfoFromMountPoint";
1081 register afs_int32 code; /*Return code */
1082 uss_VolumeStatus_t *statusP; /*Ptr to returned status */
1083 afs_int32 volID; /*Volume ID */
1084 struct nvldbentry vldbEntry; /*VLDB entry for volume */
1085 afs_int32 serverID; /*Addr of host FileServer */
1086 afs_int32 partID; /*Volume's partition ID */
1089 * Set up to ask the CacheManager to give us all the info
1090 * it has about the given mountpoint.
1092 code = uss_fs_GetVolStat(a_mountpoint, uss_fs_OutBuff, USS_FS_MAX_SIZE);
1094 printf("[%s] Result of uss_fs_GetVolStat: code = %d, errno = %d\n", rn,
1096 #endif /* USS_VOL_DB */
1098 if (errno == EINVAL || errno == ENOENT || errno == ENODEV) {
1100 * We were given a mountpoint pathname that doesn't
1101 * point to a volume, or a mountpoint that has already
1102 * been deleted. This means that there is no info
1103 * to get from this pathname. Zero out the volume,
1104 * server & partition info and return successfully.
1106 uss_Volume[0] = '\0';
1107 uss_Server[0] = '\0';
1108 uss_Partition[0] = '\0';
1111 uss_PartitionID = 0;
1113 printf("%s: Warning: Mountpoint pathname '%s': ", uss_whoami,
1115 if (errno == EINVAL)
1116 printf("Volume not reachable\n");
1117 else if (errno == ENODEV)
1118 printf("No such device\n");
1120 printf("Not found\n");
1124 printf("%s: Can't get volume information from mountpoint '%s'\n",
1125 uss_whoami, a_mountpoint);
1130 /*Can't get volume status */
1132 * Pull out the volume name from the returned information and store
1133 * it in the common area. It resides right after the basic volume
1136 statusP = (uss_VolumeStatus_t *) uss_fs_OutBuff;
1137 strcpy(uss_Volume, (((char *)statusP) + sizeof(*statusP)));
1138 volID = statusP->Vid;
1139 uss_VolumeID = volID;
1141 printf("%s: Illegal volume ID: %d\n", uss_whoami, volID);
1146 * With the volume name in hand, find out where that volume
1147 * lives. Make sure our VLDB stuff has been initialized first.
1150 code = InitThisModule(NoAuthFlag, uss_ConfDir, uss_Cell);
1154 code = uss_vol_GetEntryByID( uconn_vldbP, volID, -1, &vldbEntry);
1156 printf("%s: Can't fetch VLDB entry for volume ID %d\n", uss_whoami,
1162 * Translate the given VLDB entry from network to host format, then
1163 * checking on the volume's validity. Specifically, it must be a
1164 * read/write volume and must only exist on one server.
1166 MapHostToNetwork(&vldbEntry);
1167 if (vldbEntry.volumeId[RWVOL] != volID) {
1168 printf("%s: Volume '%s' (ID %d) is not a read/write volume!!\n",
1169 uss_whoami, uss_Volume, volID);
1172 if (vldbEntry.nServers != 1) {
1173 printf("%s: Volume '%s' (ID %d) exists on multiple servers!!\n",
1174 uss_whoami, uss_Volume, volID);
1179 * Pull out the int32words containing the server and partition info
1180 * for the read/write volume.
1182 code = GetServerAndPart(&vldbEntry, &serverID, &partID);
1185 ("%s: Can't get server/partition info from VLDB entry for volume '%s' (ID %d)\n",
1186 uss_whoami, uss_Volume, volID);
1191 * Store the raw data, then translate the FileServer address to a
1192 * host name, and the partition ID to a partition name.
1194 uss_ServerID = serverID;
1195 uss_PartitionID = partID;
1196 HostIDToHostName(serverID, uss_Server);
1198 printf("[%s] Server ID 0x%x translated to '%s'\n", rn, serverID,
1200 #endif /* USS_VOL_DB */
1201 code = PartIDToPartName(partID, uss_Partition);
1203 printf("%s: Error translating partition ID %d to partition name\n",
1204 uss_whoami, partID);
1209 * We got it, home boy.
1213 } /*uss_vol_GetVolInfoFromMountPoint */