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
9 * Portions Copyright (c) 2006 Sine Nomine Associates
12 #include <afsconfig.h>
13 #include <afs/param.h>
19 #ifdef HAVE_SYS_FILE_H
26 #include <afs/afsint.h>
27 #define FSINT_COMMON_XG
28 #include <afs/afscbint.h>
29 #include <afs/rxgen_consts.h>
31 #include <afs/errors.h>
32 #include <afs/ihandle.h>
33 #include <afs/vnode.h>
34 #include <afs/volume.h>
35 #ifdef AFS_ATHENA_STDENV
39 #include <afs/ptclient.h>
40 #include <afs/ptuser.h>
41 #include <afs/prs_fs.h>
43 #include <afs/afsutil.h>
44 #include <afs/com_err.h>
46 #include <afs/cellconfig.h>
47 #include "viced_prototypes.h"
51 #ifdef AFS_DEMAND_ATTACH_FS
52 #include "../util/afsutil_prototypes.h"
53 #include "serialize_state.h"
54 #endif /* AFS_DEMAND_ATTACH_FS */
56 pthread_mutex_t host_glock_mutex;
59 extern int CurrentConnections;
61 extern int AnonymousID;
62 extern prlist AnonCPS;
64 extern struct afsconf_dir *confDir; /* config dir object */
65 extern int lwps; /* the max number of server threads */
66 extern afsUUID FS_HostUUID;
69 int CEs = 0; /* active clients */
70 int CEBlocks = 0; /* number of blocks of CEs */
71 struct client *CEFree = 0; /* first free client */
72 struct host *hostList = 0; /* linked list of all hosts */
73 int hostCount = 0; /* number of hosts in hostList */
77 static struct rx_securityClass *sc = NULL;
79 static void h_SetupCallbackConn_r(struct host * host);
80 static int h_threadquota(int);
82 #define CESPERBLOCK 73
83 struct CEBlock { /* block of CESPERBLOCK file entries */
84 struct client entry[CESPERBLOCK];
87 void h_TossStuff_r(struct host *host);
90 * Make sure the subnet macros have been defined.
93 #define IN_SUBNETA(i) ((((afs_int32)(i))&0x80800000)==0x00800000)
96 #ifndef IN_CLASSA_SUBNET
97 #define IN_CLASSA_SUBNET 0xffff0000
101 #define IN_SUBNETB(i) ((((afs_int32)(i))&0xc0008000)==0x80008000)
104 #ifndef IN_CLASSB_SUBNET
105 #define IN_CLASSB_SUBNET 0xffffff00
109 /* get a new block of CEs and chain it on CEFree */
113 struct CEBlock *block;
116 block = (struct CEBlock *)malloc(sizeof(struct CEBlock));
118 ViceLog(0, ("Failed malloc in GetCEBlock\n"));
119 ShutDownAndCore(PANIC);
122 for (i = 0; i < (CESPERBLOCK - 1); i++) {
123 Lock_Init(&block->entry[i].lock);
124 block->entry[i].next = &(block->entry[i + 1]);
126 block->entry[CESPERBLOCK - 1].next = 0;
127 Lock_Init(&block->entry[CESPERBLOCK - 1].lock);
128 CEFree = (struct client *)block;
134 /* get the next available CE */
135 static struct client *
138 struct client *entry;
143 ViceLog(0, ("CEFree NULL in GetCE\n"));
144 ShutDownAndCore(PANIC);
148 CEFree = entry->next;
150 memset(entry, 0, CLIENT_TO_ZERO(entry));
156 /* return an entry to the free list */
158 FreeCE(struct client *entry)
160 entry->VenusEpoch = 0;
162 entry->next = CEFree;
169 * The HTs and HTBlocks variables were formerly static, but they are
170 * now referenced elsewhere in the FileServer.
172 int HTs = 0; /* active file entries */
173 int HTBlocks = 0; /* number of blocks of HTs */
174 static struct host *HTFree = 0; /* first free file entry */
177 * Hash tables of host pointers. We need two tables, one
178 * to map IP addresses onto host pointers, and another
179 * to map host UUIDs onto host pointers.
181 static struct h_AddrHashChain *hostAddrHashTable[h_HASHENTRIES];
182 static struct h_UuidHashChain *hostUuidHashTable[h_HASHENTRIES];
183 #define h_HashIndex(hostip) (ntohl(hostip) & (h_HASHENTRIES-1))
184 #define h_UuidHashIndex(uuidp) (((int)(afs_uuid_hash(uuidp))) & (h_HASHENTRIES-1))
186 struct HTBlock { /* block of HTSPERBLOCK file entries */
187 struct host entry[h_HTSPERBLOCK];
191 /* get a new block of HTs and chain it on HTFree */
195 struct HTBlock *block;
197 static int index = 0;
199 if (HTBlocks == h_MAXHOSTTABLES) {
200 ViceLog(0, ("h_MAXHOSTTABLES reached\n"));
204 block = (struct HTBlock *)malloc(sizeof(struct HTBlock));
206 ViceLog(0, ("Failed malloc in GetHTBlock\n"));
207 ShutDownAndCore(PANIC);
209 for (i = 0; i < (h_HTSPERBLOCK); i++)
210 CV_INIT(&block->entry[i].cond, "block entry", CV_DEFAULT, 0);
211 for (i = 0; i < (h_HTSPERBLOCK); i++)
212 Lock_Init(&block->entry[i].lock);
213 for (i = 0; i < (h_HTSPERBLOCK - 1); i++)
214 block->entry[i].next = &(block->entry[i + 1]);
215 for (i = 0; i < (h_HTSPERBLOCK); i++)
216 block->entry[i].index = index++;
217 block->entry[h_HTSPERBLOCK - 1].next = 0;
218 HTFree = (struct host *)block;
219 hosttableptrs[HTBlocks++] = block->entry;
224 /* get the next available HT */
235 HTFree = entry->next;
237 memset(entry, 0, HOST_TO_ZERO(entry));
243 /* return an entry to the free list */
245 FreeHT(struct host *entry)
247 entry->next = HTFree;
254 hpr_Initialize(struct ubik_client **uclient)
257 struct rx_connection *serverconns[MAXSERVERS];
258 struct rx_securityClass *sc;
259 struct afsconf_dir *tdir;
261 struct afsconf_cell info;
265 tdir = afsconf_Open(AFSDIR_SERVER_ETC_DIRPATH);
267 ViceLog(0, ("hpr_Initialize: Could not open configuration directory: %s", AFSDIR_SERVER_ETC_DIRPATH));
271 code = afsconf_GetLocalCell(tdir, cellstr, sizeof(cellstr));
273 ViceLog(0, ("hpr_Initialize: Could not get local cell. [%d]", code));
278 code = afsconf_GetCellInfo(tdir, cellstr, "afsprot", &info);
280 ViceLog(0, ("hpr_Initialize: Could not locate cell %s in %s/%s",
281 cellstr, tdir->name, AFSDIR_CELLSERVDB_FILE));
288 ViceLog(0, ("hpr_Initialize: Could not initialize rx."));
293 /* Most callers use secLevel==1, however, the fileserver uses secLevel==2
294 * to force use of the KeyFile. secLevel == 0 implies -noauth was
296 code = afsconf_ClientAuthSecure(tdir, &sc, &scIndex);
298 ViceLog(0, ("hpr_Initialize: clientauthsecure returns %d %s "
299 "(so trying noauth)", code, afs_error_message(code)));
300 scIndex = RX_SECIDX_NULL;
301 sc = rxnull_NewClientSecurityObject();
304 if (scIndex == RX_SECIDX_NULL)
305 ViceLog(0, ("hpr_Initialize: Could not get afs tokens, "
306 "running unauthenticated. [%d]", code));
308 memset(serverconns, 0, sizeof(serverconns)); /* terminate list!!! */
309 for (i = 0; i < info.numServers; i++) {
311 rx_NewConnection(info.hostAddr[i].sin_addr.s_addr,
312 info.hostAddr[i].sin_port, PRSRV,
316 code = ubik_ClientInit(serverconns, uclient);
318 ViceLog(0, ("hpr_Initialize: ubik client init failed. [%d]", code));
321 code = rxs_Release(sc);
326 hpr_End(struct ubik_client *uclient)
331 code = ubik_ClientDestroy(uclient);
337 hpr_GetHostCPS(afs_int32 host, prlist *CPS)
341 struct ubik_client *uclient =
342 (struct ubik_client *)pthread_getspecific(viced_uclient_key);
345 code = hpr_Initialize(&uclient);
347 osi_Assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
353 code = ubik_PR_GetHostCPS(uclient, 0, host, CPS, &over);
354 if (code != PRSUCCESS)
357 /* do something about this, probably make a new call */
358 /* don't forget there's a hard limit in the interface */
360 "membership list for host id %d exceeds display limit\n",
367 hpr_NameToId(namelist *names, idlist *ids)
371 struct ubik_client *uclient =
372 (struct ubik_client *)pthread_getspecific(viced_uclient_key);
375 code = hpr_Initialize(&uclient);
377 osi_Assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
382 for (i = 0; i < names->namelist_len; i++)
383 stolower(names->namelist_val[i]);
384 code = ubik_PR_NameToID(uclient, 0, names, ids);
389 hpr_IdToName(idlist *ids, namelist *names)
392 struct ubik_client *uclient =
393 (struct ubik_client *)pthread_getspecific(viced_uclient_key);
396 code = hpr_Initialize(&uclient);
398 osi_Assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
403 code = ubik_PR_IDToName(uclient, 0, ids, names);
408 hpr_GetCPS(afs_int32 id, prlist *CPS)
412 struct ubik_client *uclient =
413 (struct ubik_client *)pthread_getspecific(viced_uclient_key);
416 code = hpr_Initialize(&uclient);
418 osi_Assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
424 code = ubik_PR_GetCPS(uclient, 0, id, CPS, &over);
425 if (code != PRSUCCESS)
428 /* do something about this, probably make a new call */
429 /* don't forget there's a hard limit in the interface */
430 fprintf(stderr, "membership list for id %d exceeds display limit\n",
436 static short consolePort = 0;
439 h_Lock_r(struct host *host)
449 * returns 1 if already locked
450 * else returns locks and returns 0
454 h_NBLock_r(struct host *host)
456 struct Lock *hostLock = &host->lock;
461 if (!(hostLock->excl_locked) && !(hostLock->readers_reading))
462 hostLock->excl_locked = WRITE_LOCK;
466 LOCK_UNLOCK(hostLock);
475 /*------------------------------------------------------------------------
476 * PRIVATE h_AddrInSameNetwork
479 * Given a target IP address and a candidate IP address (both
480 * in host byte order), return a non-zero value (1) if the
481 * candidate address is in a different network from the target
485 * a_targetAddr : Target address.
486 * a_candAddr : Candidate address.
489 * 1 if the candidate address is in the same net as the target,
493 * The target and candidate addresses are both in host byte
494 * order, NOT network byte order, when passed in. We return
495 * our value as a character, since that's the type of field in
496 * the host structure, where this info will be stored.
500 *------------------------------------------------------------------------*/
503 h_AddrInSameNetwork(afs_uint32 a_targetAddr, afs_uint32 a_candAddr)
504 { /*h_AddrInSameNetwork */
506 afs_uint32 targetNet;
510 * Pull out the network and subnetwork numbers from the target
511 * and candidate addresses. We can short-circuit this whole
512 * affair if the target and candidate addresses are not of the
515 if (IN_CLASSA(a_targetAddr)) {
516 if (!(IN_CLASSA(a_candAddr))) {
519 targetNet = a_targetAddr & IN_CLASSA_NET;
520 candNet = a_candAddr & IN_CLASSA_NET;
521 } else if (IN_CLASSB(a_targetAddr)) {
522 if (!(IN_CLASSB(a_candAddr))) {
525 targetNet = a_targetAddr & IN_CLASSB_NET;
526 candNet = a_candAddr & IN_CLASSB_NET;
527 } /*Class B target */
528 else if (IN_CLASSC(a_targetAddr)) {
529 if (!(IN_CLASSC(a_candAddr))) {
532 targetNet = a_targetAddr & IN_CLASSC_NET;
533 candNet = a_candAddr & IN_CLASSC_NET;
534 } /*Class C target */
536 targetNet = a_targetAddr;
537 candNet = a_candAddr;
538 } /*Class D address */
541 * Now, simply compare the extracted net values for the two addresses
542 * (which at this point are known to be of the same class)
544 if (targetNet == candNet)
549 } /*h_AddrInSameNetwork */
552 /* Assumptions: called with held host */
554 h_gethostcps_r(struct host *host, afs_int32 now)
559 /* wait if somebody else is already doing the getCPS call */
560 while (host->hostFlags & HCPS_INPROGRESS) {
561 slept = 1; /* I did sleep */
562 host->hostFlags |= HCPS_WAITING; /* I am sleeping now */
563 CV_WAIT(&host->cond, &host_glock_mutex);
567 host->hostFlags |= HCPS_INPROGRESS; /* mark as CPSCall in progress */
568 if (host->hcps.prlist_val)
569 free(host->hcps.prlist_val); /* this is for hostaclRefresh */
570 host->hcps.prlist_val = NULL;
571 host->hcps.prlist_len = 0;
572 host->cpsCall = slept ? (FT_ApproxTime()) : (now);
575 code = hpr_GetHostCPS(ntohl(host->host), &host->hcps);
580 * Although ubik_Call (called by pr_GetHostCPS) traverses thru all protection servers
581 * and reevaluates things if no sync server or quorum is found we could still end up
582 * with one of these errors. In such case we would like to reevaluate the rpc call to
583 * find if there's cps for this guy. We treat other errors (except network failures
584 * ones - i.e. code < 0) as an indication that there is no CPS for this host. Ideally
585 * we could like to deal this problem the other way around (i.e. if code == NOCPS
586 * ignore else retry next time) but the problem is that there're other errors (i.e.
587 * EPERM) for which we don't want to retry and we don't know the whole code list!
589 if (code < 0 || code == UNOQUORUM || code == UNOTSYNC) {
591 * We would have preferred to use a while loop and try again since ops in protected
592 * acls for this host will fail now but they'll be reevaluated on any subsequent
593 * call. The attempt to wait for a quorum/sync site or network error won't work
594 * since this problems really should only occurs during a complete fileserver
595 * restart. Since the fileserver will start before the ptservers (and thus before
596 * quorums are complete) clients will be utilizing all the fileserver's lwps!!
598 host->hcpsfailed = 1;
600 ("Warning: GetHostCPS failed (%d) for %p (%s:%d); will retry\n",
601 code, host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
603 host->hcpsfailed = 0;
605 ("gethost: GetHostCPS failed (%d) for %p (%s:%d); ignored\n",
606 code, host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
608 if (host->hcps.prlist_val)
609 free(host->hcps.prlist_val);
610 host->hcps.prlist_val = NULL;
611 host->hcps.prlist_len = 0; /* Make sure it's zero */
613 host->hcpsfailed = 0;
615 host->hostFlags &= ~HCPS_INPROGRESS;
616 /* signal all who are waiting */
617 if (host->hostFlags & HCPS_WAITING) { /* somebody is waiting */
618 host->hostFlags &= ~HCPS_WAITING;
619 CV_BROADCAST(&host->cond);
623 /* args in net byte order */
625 h_flushhostcps(afs_uint32 hostaddr, afs_uint16 hport)
630 h_Lookup_r(hostaddr, hport, &host);
632 host->hcpsfailed = 1;
641 * Allocate a host. It will be identified by the peer (ip,port) info in the
642 * rx connection provided. The host is returned held and locked
644 #define DEF_ROPCONS 2115
647 h_Alloc_r(struct rx_connection *r_con)
649 struct servent *serverentry;
651 afs_uint32 newHostAddr_HBO; /*New host IP addr, in host byte order */
658 /* acquire the host lock withot dropping H_LOCK. we can do this here
659 * because we know we will not block; we just created this host and
660 * nobody else knows about it. */
661 ObtainWriteLock(&host->lock);
663 host->host = rxr_HostOf(r_con);
664 host->port = rxr_PortOf(r_con);
666 h_AddHostToAddrHashTable_r(host->host, host->port, host);
668 if (consolePort == 0) { /* find the portal number for console */
669 #if defined(AFS_OSF_ENV)
670 serverentry = getservbyname("ropcons", "");
672 serverentry = getservbyname("ropcons", 0);
675 consolePort = serverentry->s_port;
677 consolePort = htons(DEF_ROPCONS); /* Use a default */
679 if (host->port == consolePort)
681 /* Make a callback channel even for the console, on the off chance that it
682 * makes a request that causes a break call back. It shouldn't. */
683 h_SetupCallbackConn_r(host);
684 host->LastCall = host->cpsCall = host->ActiveCall = FT_ApproxTime();
686 host->hcps.prlist_val = NULL;
687 host->hcps.prlist_len = 0;
688 host->interface = NULL;
690 host->hcpsfailed = 0; /* save cycles */
691 h_gethostcps(host); /* do this under host hold/lock */
693 host->FirstClient = NULL;
694 h_InsertList_r(host); /* update global host List */
696 * Compare the new host's IP address (in host byte order) with ours
697 * (the File Server's), remembering if they are in the same network.
699 newHostAddr_HBO = (afs_uint32) ntohl(host->host);
700 host->InSameNetwork =
701 h_AddrInSameNetwork(FS_HostAddr_HBO, newHostAddr_HBO);
708 /* Make a callback channel even for the console, on the off chance that it
709 * makes a request that causes a break call back. It shouldn't. */
711 h_SetupCallbackConn_r(struct host * host)
714 sc = rxnull_NewClientSecurityObject();
715 host->callback_rxcon =
716 rx_NewConnection(host->host, host->port, 1, sc, 0);
717 rx_SetConnDeadTime(host->callback_rxcon, 50);
718 rx_SetConnHardDeadTime(host->callback_rxcon, AFS_HARDDEADTIME);
719 rx_SetConnSecondsUntilNatPing(host->callback_rxcon, 20);
723 * Lookup a host given an IP address and UDP port number.
724 * hostaddr and hport are in network order
725 * hostaddr and hport are in network order
726 * On return, refCount is incremented.
729 h_Lookup_r(afs_uint32 haddr, afs_uint16 hport, struct host **hostp)
732 struct host *host = NULL;
733 struct h_AddrHashChain *chain;
734 int index = h_HashIndex(haddr);
735 extern int hostaclRefresh;
738 for (chain = hostAddrHashTable[index]; chain; chain = chain->next) {
739 host = chain->hostPtr;
741 if (!(host->hostFlags & HOSTDELETED) && chain->addr == haddr
742 && chain->port == hport) {
743 if ((host->hostFlags & HWHO_INPROGRESS) &&
744 h_threadquota(host->lock.num_waiting)) {
750 if (host->hostFlags & HOSTDELETED) {
757 now = FT_ApproxTime(); /* always evaluate "now" */
758 if (host->hcpsfailed || (host->cpsCall + hostaclRefresh < now)) {
760 * Every hostaclRefresh period (def 2 hrs) get the new
761 * membership list for the host. Note this could be the
762 * first time that the host is added to a group. Also
763 * here we also retry on previous legitimate hcps failures.
765 * If we get here refCount is elevated.
767 h_gethostcps_r(host, now);
777 /* Lookup a host given its UUID. */
779 h_LookupUuid_r(afsUUID * uuidp)
781 struct host *host = 0;
782 struct h_UuidHashChain *chain;
783 int index = h_UuidHashIndex(uuidp);
785 for (chain = hostUuidHashTable[index]; chain; chain = chain->next) {
786 host = chain->hostPtr;
788 if (!(host->hostFlags & HOSTDELETED) && host->interface
789 && afs_uuid_equal(&host->interface->uuid, uuidp)) {
797 /* h_TossStuff_r: Toss anything in the host structure (the host or
798 * clients marked for deletion. Called from h_Release_r ONLY.
799 * To be called, there must be no holds, and either host->deleted
800 * or host->clientDeleted must be set.
803 h_TossStuff_r(struct host *host)
805 struct client **cp, *client;
809 if ((host->hostFlags & HOSTDELETED)) {
813 /* make sure host doesn't go away over h_NBLock_r */
816 code = h_NBLock_r(host);
818 /* don't use h_Release_r, since that may call h_TossStuff_r again */
821 /* if somebody still has this host locked */
825 /* someone locked the host while HOSTDELETED was set; that is bad */
826 ViceLog(0, ("Warning: h_TossStuff_r failed; Host %" AFS_PTR_FMT
827 " (%s:%d flags 0x%x) was locked.\n",
828 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
829 (unsigned)host->hostFlags));
836 /* if somebody still has this host held */
837 /* we must check this _after_ h_NBLock_r, since h_NBLock_r can drop and
838 * reacquire H_LOCK */
839 if (host->refCount > 0) {
842 /* someone grabbed a ref while HOSTDELETED was set; that is bad */
843 ViceLog(0, ("Warning: h_TossStuff_r failed; Host %" AFS_PTR_FMT
844 " (%s:%d flags 0x%x) was held.\n",
845 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
846 (unsigned)host->hostFlags));
851 /* ASSUMPTION: rxi_FreeConnection() does not yield */
852 for (cp = &host->FirstClient; (client = *cp);) {
853 if ((host->hostFlags & HOSTDELETED) || client->deleted) {
855 ObtainWriteLockNoBlock(&client->lock, code);
859 ("Warning: h_TossStuff_r failed: Host %p (%s:%d) "
860 "client %p was locked.\n",
861 host, afs_inet_ntoa_r(host->host, hoststr),
862 ntohs(host->port), client));
866 if (client->refCount) {
869 ("Warning: h_TossStuff_r failed: Host %p (%s:%d) "
870 "client %p refcount %d.\n",
871 host, afs_inet_ntoa_r(host->host, hoststr),
872 ntohs(host->port), client, client->refCount));
873 /* This is the same thing we do if the host is locked */
874 ReleaseWriteLock(&client->lock);
877 client->CPS.prlist_len = 0;
878 if ((client->ViceId != ANONYMOUSID) && client->CPS.prlist_val)
879 free(client->CPS.prlist_val);
880 client->CPS.prlist_val = NULL;
881 CurrentConnections--;
883 ReleaseWriteLock(&client->lock);
889 /* We've just cleaned out all the deleted clients; clear the flag */
890 host->hostFlags &= ~CLIENTDELETED;
892 if (host->hostFlags & HOSTDELETED) {
893 struct rx_connection *rxconn;
894 struct AddrPort hostAddrPort;
897 if (host->Console & 1)
899 if ((rxconn = host->callback_rxcon)) {
900 host->callback_rxcon = (struct rx_connection *)0;
901 rx_DestroyConnection(rxconn);
903 if (host->hcps.prlist_val)
904 free(host->hcps.prlist_val);
905 host->hcps.prlist_val = NULL;
906 host->hcps.prlist_len = 0;
907 DeleteAllCallBacks_r(host, 1);
908 host->hostFlags &= ~RESETDONE; /* just to be safe */
910 /* if alternate addresses do not exist */
911 if (!(host->interface)) {
912 h_DeleteHostFromAddrHashTable_r(host->host, host->port, host);
914 h_DeleteHostFromUuidHashTable_r(host);
915 h_DeleteHostFromAddrHashTable_r(host->host, host->port, host);
916 /* delete the hash entry for each valid alternate addresses */
917 for (i = 0; i < host->interface->numberOfInterfaces; i++) {
918 hostAddrPort = host->interface->interface[i];
920 * if the interface addr/port is the primary, we already
921 * removed it. If the addr/port is not valid, its not
924 if (hostAddrPort.valid &&
925 (host->host != hostAddrPort.addr ||
926 host->port != hostAddrPort.port))
927 h_DeleteHostFromAddrHashTable_r(hostAddrPort.addr, hostAddrPort.port, host);
929 free(host->interface);
930 host->interface = NULL;
931 } /* if alternate address exists */
933 h_DeleteList_r(host); /* remove host from global host List */
940 /* h_Enumerate: Calls (*proc)(host, param) for at least each host in the
941 * system at the start of the enumeration (perhaps more). Hosts may be deleted
942 * (have delete flag set); ditto for clients. refCount is always incremented
943 * before (*proc) is called.
945 * The return value of the proc is a set of flags. The proc should set
946 * H_ENUMERATE_BAIL(foo) if the enumeration of hosts should be stopped early.
949 h_Enumerate(int (*proc) (struct host*, void *), void *param)
951 struct host *host, **list;
956 if (hostCount == 0) {
960 list = (struct host **)malloc(hostCount * sizeof(struct host *));
962 ViceLogThenPanic(0, ("Failed malloc in h_Enumerate (list)\n"));
964 for (totalCount = count = 0, host = hostList;
965 host && totalCount < hostCount;
966 host = host->next, totalCount++) {
968 if (!(host->hostFlags & HOSTDELETED)) {
974 if (totalCount != hostCount) {
975 ViceLog(0, ("h_Enumerate found %d of %d hosts\n", totalCount, hostCount));
976 } else if (host != NULL) {
977 ViceLog(0, ("h_Enumerate found more than %d hosts\n", hostCount));
978 ShutDownAndCore(PANIC);
981 for (i = 0; i < count; i++) {
983 flags = (*proc) (list[i], param);
985 h_Release_r(list[i]);
987 /* bail out of the enumeration early */
988 if (H_ENUMERATE_ISSET_BAIL(flags)) {
991 ViceLog(0, ("h_Enumerate got back invalid return value %d\n", flags));
992 ShutDownAndCore(PANIC);
996 /* we bailed out of enumerating hosts early; we still have holds on
997 * some of the hosts in 'list', so release them */
1000 for ( ; i < count; i++) {
1001 h_Release_r(list[i]);
1009 /* h_Enumerate_r (revised):
1010 * Calls (*proc)(host, param) for each host in hostList, starting
1011 * at enumstart. Called only under H_LOCK. Hosts may be deleted (have
1012 * delete flag set); ditto for clients. refCount is always incremented
1013 * before (*proc) is called.
1015 * @note Assumes that hostList is only prepended to, that a host is never
1016 * inserted into the middle. Otherwise this would not be guaranteed to
1019 * The return value of the proc is a set of flags. The proc should set
1020 * H_ENUMERATE_BAIL(foo) if the enumeration of hosts should be stopped early.
1023 h_Enumerate_r(int (*proc) (struct host *, void *),
1024 struct host *enumstart, void *param)
1026 struct host *host, *next;
1030 if (hostCount == 0) {
1037 /* find the first non-deleted host, so we know where to actually start
1039 for (count = 0; host && count < hostCount; count++) {
1040 if (!(host->hostFlags & HOSTDELETED)) {
1047 /* we didn't find a non-deleted host... */
1049 if (host && count >= hostCount) {
1050 /* ...because we found a loop */
1051 ViceLog(0, ("h_Enumerate_r found more than %d hosts\n", hostCount));
1052 ShutDownAndCore(PANIC);
1055 /* ...because the hostList is full of deleted hosts */
1059 h_Hold_r(enumstart);
1061 /* remember hostCount, lest it change over the potential H_LOCK drop in
1063 origHostCount = hostCount;
1065 for (count = 0, host = enumstart; host && count < origHostCount; host = next, count++) {
1068 /* find the next non-deleted host */
1069 while (next && (next->hostFlags & HOSTDELETED)) {
1071 /* inc count for the skipped-over host */
1072 if (++count > origHostCount) {
1073 ViceLog(0, ("h_Enumerate_r found more than %d hosts\n", origHostCount));
1074 ShutDownAndCore(PANIC);
1080 if (!(host->hostFlags & HOSTDELETED)) {
1082 flags = (*proc) (host, param);
1083 if (H_ENUMERATE_ISSET_BAIL(flags)) {
1084 h_Release_r(host); /* this might free up the host */
1090 ViceLog(0, ("h_Enumerate_r got back invalid return value %d\n", flags));
1091 ShutDownAndCore(PANIC);
1094 h_Release_r(host); /* this might free up the host */
1096 if (host != NULL && count >= origHostCount) {
1097 ViceLog(0, ("h_Enumerate_r found more than %d hosts\n", origHostCount));
1098 ShutDownAndCore(PANIC);
1100 } /*h_Enumerate_r */
1103 /* inserts a new HashChain structure corresponding to this UUID */
1105 h_AddHostToUuidHashTable_r(struct afsUUID *uuid, struct host *host)
1108 struct h_UuidHashChain *chain;
1109 char uuid1[128], uuid2[128];
1112 /* hash into proper bucket */
1113 index = h_UuidHashIndex(uuid);
1115 /* don't add the same entry multiple times */
1116 for (chain = hostUuidHashTable[index]; chain; chain = chain->next) {
1117 if (!chain->hostPtr)
1120 if (chain->hostPtr->interface &&
1121 afs_uuid_equal(&chain->hostPtr->interface->uuid, uuid)) {
1122 if (LogLevel >= 125) {
1123 afsUUID_to_string(&chain->hostPtr->interface->uuid, uuid1,
1125 afsUUID_to_string(uuid, uuid2, 127);
1126 ViceLog(125, ("h_AddHostToUuidHashTable_r: host %" AFS_PTR_FMT " (uuid %s) exists as %s:%d (uuid %s)\n",
1128 afs_inet_ntoa_r(chain->hostPtr->host, hoststr),
1129 ntohs(chain->hostPtr->port), uuid2));
1135 /* insert into beginning of list for this bucket */
1136 chain = (struct h_UuidHashChain *)malloc(sizeof(struct h_UuidHashChain));
1138 ViceLogThenPanic(0, ("Failed malloc in h_AddHostToUuidHashTable_r\n"));
1140 chain->hostPtr = host;
1141 chain->next = hostUuidHashTable[index];
1142 hostUuidHashTable[index] = chain;
1145 afsUUID_to_string(uuid, uuid2, 127);
1147 ("h_AddHostToUuidHashTable_r: host %p (%s:%d) added as uuid %s\n",
1148 host, afs_inet_ntoa_r(chain->hostPtr->host, hoststr),
1149 ntohs(chain->hostPtr->port), uuid2));
1152 /* deletes a HashChain structure corresponding to this host */
1154 h_DeleteHostFromUuidHashTable_r(struct host *host)
1157 struct h_UuidHashChain **uhp, *uth;
1161 if (!host->interface)
1164 /* hash into proper bucket */
1165 index = h_UuidHashIndex(&host->interface->uuid);
1167 if (LogLevel >= 125)
1168 afsUUID_to_string(&host->interface->uuid, uuid1, 127);
1169 for (uhp = &hostUuidHashTable[index]; (uth = *uhp); uhp = &uth->next) {
1170 osi_Assert(uth->hostPtr);
1171 if (uth->hostPtr == host) {
1173 ("h_DeleteHostFromUuidHashTable_r: host %" AFS_PTR_FMT " (uuid %s %s:%d)\n",
1174 host, uuid1, afs_inet_ntoa_r(host->host, hoststr),
1175 ntohs(host->port)));
1182 ("h_DeleteHostFromUuidHashTable_r: host %" AFS_PTR_FMT " (uuid %s %s:%d) not found\n",
1183 host, uuid1, afs_inet_ntoa_r(host->host, hoststr),
1184 ntohs(host->port)));
1189 * This is called with host locked and held.
1191 * All addresses are in network byte order.
1194 invalidateInterfaceAddr_r(struct host *host, afs_uint32 addr, afs_uint16 port)
1198 struct Interface *interface;
1199 char hoststr[16], hoststr2[16];
1202 osi_Assert(host->interface);
1204 ViceLog(125, ("invalidateInterfaceAddr : host %" AFS_PTR_FMT " (%s:%d) addr %s:%d\n",
1205 host, afs_inet_ntoa_r(host->host, hoststr),
1206 ntohs(host->port), afs_inet_ntoa_r(addr, hoststr2),
1210 * Make sure this address is on the list of known addresses
1213 interface = host->interface;
1214 number = host->interface->numberOfInterfaces;
1215 for (i = 0; i < number; i++) {
1216 if (interface->interface[i].addr == addr &&
1217 interface->interface[i].port == port) {
1218 if (interface->interface[i].valid) {
1219 h_DeleteHostFromAddrHashTable_r(addr, port, host);
1220 interface->interface[i].valid = 0;
1231 * This is called with host locked and held. This function differs
1232 * from removeInterfaceAddr_r in that it is called when the address
1233 * is being removed from the host regardless of whether or not there
1234 * is an interface list for the host. This function will delete the
1235 * host if there are no addresses left on it.
1237 * All addresses are in network byte order.
1240 removeAddress_r(struct host *host, afs_uint32 addr, afs_uint16 port)
1243 char hoststr[16], hoststr2[16];
1244 struct rx_connection *rxconn;
1246 if (!host->interface || host->interface->numberOfInterfaces == 1) {
1247 if (host->host == addr && host->port == port) {
1249 ("Removing only address for host %" AFS_PTR_FMT " (%s:%d), deleting host.\n",
1250 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
1251 host->hostFlags |= HOSTDELETED;
1253 * Do not remove the primary addr/port from the hash table.
1254 * It will be ignored due to the HOSTDELETED flag and will
1255 * be removed when h_TossStuff_r() cleans up the HOSTDELETED
1256 * host. Removing it here will only result in a search for
1257 * the host/addr/port in the hash chain which will fail.
1261 ("Removing address that does not belong to host %" AFS_PTR_FMT " (%s:%d).\n",
1262 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
1265 if (host->host == addr && host->port == port) {
1266 removeInterfaceAddr_r(host, addr, port);
1268 for (i=0; i < host->interface->numberOfInterfaces; i++) {
1269 if (host->interface->interface[i].valid) {
1271 ("Removed address for host %" AFS_PTR_FMT " (%s:%d), new primary interface %s:%d.\n",
1272 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
1273 afs_inet_ntoa_r(host->interface->interface[i].addr, hoststr2),
1274 ntohs(host->interface->interface[i].port)));
1275 host->host = host->interface->interface[i].addr;
1276 host->port = host->interface->interface[i].port;
1277 h_AddHostToAddrHashTable_r(host->host, host->port, host);
1282 if (i == host->interface->numberOfInterfaces) {
1284 ("Removed only address for host %" AFS_PTR_FMT " (%s:%d), no valid alternate interfaces, deleting host.\n",
1285 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
1286 host->hostFlags |= HOSTDELETED;
1287 /* addr/port was removed from the hash table */
1291 rxconn = host->callback_rxcon;
1292 host->callback_rxcon = NULL;
1295 rx_DestroyConnection(rxconn);
1299 h_SetupCallbackConn_r(host);
1302 /* not the primary addr/port, just invalidate it */
1303 invalidateInterfaceAddr_r(host, addr, port);
1311 createHostAddrHashChain_r(int index, afs_uint32 addr, afs_uint16 port, struct host *host)
1313 struct h_AddrHashChain *chain;
1316 /* insert into beginning of list for this bucket */
1317 chain = (struct h_AddrHashChain *)malloc(sizeof(struct h_AddrHashChain));
1319 ViceLogThenPanic(0, ("Failed malloc in h_AddHostToAddrHashTable_r\n"));
1321 chain->hostPtr = host;
1322 chain->next = hostAddrHashTable[index];
1325 hostAddrHashTable[index] = chain;
1326 ViceLog(125, ("h_AddHostToAddrHashTable_r: host %" AFS_PTR_FMT " added as %s:%d\n",
1327 host, afs_inet_ntoa_r(addr, hoststr), ntohs(port)));
1331 * Resolve host address conflicts when hashing by address.
1333 * @param[in] addr an ip address of the interface
1334 * @param[in] port the port of the interface
1335 * @param[in] newHost the host being added with this address
1336 * @param[in] oldHost the host previously added with this address
1339 reconcileHosts_r(afs_uint32 addr, afs_uint16 port, struct host *newHost,
1340 struct host *oldHost)
1342 struct rx_connection *cb = NULL;
1344 struct interfaceAddr interf;
1346 afsUUID *newHostUuid = &nulluuid;
1347 afsUUID *oldHostUuid = &nulluuid;
1351 ("reconcileHosts_r: addr %s:%d newHost %" AFS_PTR_FMT " oldHost %"
1352 AFS_PTR_FMT, afs_inet_ntoa_r(addr, hoststr), ntohs(port),
1355 osi_Assert(oldHost != newHost);
1356 caps.Capabilities_val = NULL;
1359 sc = rxnull_NewClientSecurityObject();
1362 cb = rx_NewConnection(addr, port, 1, sc, 0);
1363 rx_SetConnDeadTime(cb, 50);
1364 rx_SetConnHardDeadTime(cb, AFS_HARDDEADTIME);
1369 code = RXAFSCB_TellMeAboutYourself(cb, &interf, &caps);
1370 if (code == RXGEN_OPCODE) {
1371 code = RXAFSCB_WhoAreYou(cb, &interf);
1375 if (code == RXGEN_OPCODE ||
1376 (code == 0 && afs_uuid_equal(&interf.uuid, &nulluuid))) {
1378 ("reconcileHosts_r: WhoAreYou not supported for connection (%s:%d), error %d\n",
1379 afs_inet_ntoa_r(addr, hoststr), ntohs(port), code));
1384 ("reconcileHosts_r: WhoAreYou failed for connection (%s:%d), error %d\n",
1385 afs_inet_ntoa_r(addr, hoststr), ntohs(port), code));
1389 /* Since lock was dropped, the hosts may have been deleted during the rpcs. */
1390 if ((newHost->hostFlags & HOSTDELETED)
1391 && (oldHost->hostFlags & HOSTDELETED)) {
1393 ("reconcileHosts_r: new and old hosts were deleted during probe.\n"));
1397 /* A check can be done if at least one of the hosts has a uuid. It
1398 * is an error if the hosts have the same (not null) uuid. */
1399 if ((!(newHost->hostFlags & HOSTDELETED)) && newHost->interface) {
1400 newHostUuid = &(newHost->interface->uuid);
1402 if ((!(oldHost->hostFlags & HOSTDELETED)) && oldHost->interface) {
1403 oldHostUuid = &(oldHost->interface->uuid);
1405 if (afs_uuid_equal(newHostUuid, &nulluuid) &&
1406 afs_uuid_equal(oldHostUuid, &nulluuid)) {
1408 ("reconcileHosts_r: Cannot reconcile hosts for connection (%s:%d), no uuids\n",
1409 afs_inet_ntoa_r(addr, hoststr), ntohs(port)));
1412 if (afs_uuid_equal(newHostUuid, oldHostUuid)) {
1414 ("reconcileHosts_r: Cannot reconcile hosts for connection (%s:%d), same uuids\n",
1415 afs_inet_ntoa_r(addr, hoststr), ntohs(port)));
1419 /* Determine which host should be hashed */
1420 if ((!(newHost->hostFlags & HOSTDELETED))
1421 && afs_uuid_equal(newHostUuid, &(interf.uuid))) {
1422 /* Install the new host into the hash before removing the stale
1423 * addresses. Walk the hash chain again since the hash table may have
1424 * been changed when the host lock was dropped to get the uuid. */
1425 struct h_AddrHashChain *chain;
1426 int index = h_HashIndex(addr);
1427 for (chain = hostAddrHashTable[index]; chain; chain = chain->next) {
1428 if (chain->addr == addr && chain->port == port) {
1429 chain->hostPtr = newHost;
1430 removeAddress_r(oldHost, addr, port);
1434 createHostAddrHashChain_r(index, addr, port, newHost);
1435 removeAddress_r(oldHost, addr, port);
1438 if ((!(oldHost->hostFlags & HOSTDELETED))
1439 && afs_uuid_equal(oldHostUuid, &(interf.uuid))) {
1440 removeAddress_r(newHost, addr, port);
1445 if (!(newHost->hostFlags & HOSTDELETED)) {
1446 removeAddress_r(newHost, addr, port);
1448 if (!(oldHost->hostFlags & HOSTDELETED)) {
1449 removeAddress_r(oldHost, addr, port);
1453 h_Release_r(newHost);
1454 h_Release_r(oldHost);
1455 rx_DestroyConnection(cb);
1459 /* inserts a new HashChain structure corresponding to this address */
1461 h_AddHostToAddrHashTable_r(afs_uint32 addr, afs_uint16 port, struct host *host)
1464 struct h_AddrHashChain *chain;
1467 /* hash into proper bucket */
1468 index = h_HashIndex(addr);
1470 /* don't add the same address:port pair entry multiple times */
1471 for (chain = hostAddrHashTable[index]; chain; chain = chain->next) {
1472 if (chain->addr == addr && chain->port == port) {
1473 if (chain->hostPtr == host) {
1475 ("h_AddHostToAddrHashTable_r: host %" AFS_PTR_FMT " (%s:%d) already hashed\n",
1476 host, afs_inet_ntoa_r(chain->addr, hoststr),
1477 ntohs(chain->port)));
1480 if (!(chain->hostPtr->hostFlags & HOSTDELETED)) {
1481 /* attempt to resolve host address collision */
1482 reconcileHosts_r(addr, port, host, chain->hostPtr);
1487 createHostAddrHashChain_r(index, addr, port, host);
1491 * This is called with host locked and held.
1492 * It is called to either validate or add an additional interface
1493 * address/port on the specified host.
1495 * All addresses are in network byte order.
1498 addInterfaceAddr_r(struct host *host, afs_uint32 addr, afs_uint16 port)
1502 struct Interface *interface;
1503 char hoststr[16], hoststr2[16];
1506 osi_Assert(host->interface);
1509 * Make sure this address is on the list of known addresses
1512 number = host->interface->numberOfInterfaces;
1513 for (i = 0; i < number; i++) {
1514 if (host->interface->interface[i].addr == addr &&
1515 host->interface->interface[i].port == port) {
1517 ("addInterfaceAddr : found host %" AFS_PTR_FMT " (%s:%d) adding %s:%d%s\n",
1518 host, afs_inet_ntoa_r(host->host, hoststr),
1519 ntohs(host->port), afs_inet_ntoa_r(addr, hoststr2),
1520 ntohs(port), host->interface->interface[i].valid ? "" :
1523 if (host->interface->interface[i].valid == 0) {
1524 host->interface->interface[i].valid = 1;
1525 h_AddHostToAddrHashTable_r(addr, port, host);
1531 ViceLog(125, ("addInterfaceAddr : host %" AFS_PTR_FMT " (%s:%d) adding %s:%d\n",
1532 host, afs_inet_ntoa_r(host->host, hoststr),
1533 ntohs(host->port), afs_inet_ntoa_r(addr, hoststr2),
1536 interface = (struct Interface *)
1537 malloc(sizeof(struct Interface) + (sizeof(struct AddrPort) * number));
1539 ViceLogThenPanic(0, ("Failed malloc in addInterfaceAddr_r\n"));
1541 interface->numberOfInterfaces = number + 1;
1542 interface->uuid = host->interface->uuid;
1543 for (i = 0; i < number; i++)
1544 interface->interface[i] = host->interface->interface[i];
1546 /* Add the new valid interface */
1547 interface->interface[number].addr = addr;
1548 interface->interface[number].port = port;
1549 interface->interface[number].valid = 1;
1550 h_AddHostToAddrHashTable_r(addr, port, host);
1551 free(host->interface);
1552 host->interface = interface;
1559 * This is called with host locked and held.
1561 * All addresses are in network byte order.
1564 removeInterfaceAddr_r(struct host *host, afs_uint32 addr, afs_uint16 port)
1568 struct Interface *interface;
1569 char hoststr[16], hoststr2[16];
1572 osi_Assert(host->interface);
1574 ViceLog(125, ("removeInterfaceAddr : host %" AFS_PTR_FMT " (%s:%d) addr %s:%d\n",
1575 host, afs_inet_ntoa_r(host->host, hoststr),
1576 ntohs(host->port), afs_inet_ntoa_r(addr, hoststr2),
1580 * Make sure this address is on the list of known addresses
1583 interface = host->interface;
1584 number = host->interface->numberOfInterfaces;
1585 for (i = 0; i < number; i++) {
1586 if (interface->interface[i].addr == addr &&
1587 interface->interface[i].port == port) {
1588 if (interface->interface[i].valid)
1589 h_DeleteHostFromAddrHashTable_r(addr, port, host);
1591 for (; i < number; i++) {
1592 interface->interface[i] = interface->interface[i+1];
1594 interface->numberOfInterfaces = number;
1605 h_threadquota(int waiting)
1610 } else if (lwps > 32) {
1613 } else if (lwps > 16) {
1623 /* If found, host is returned with refCount incremented */
1625 h_GetHost_r(struct rx_connection *tcon)
1628 struct host *oldHost;
1630 struct interfaceAddr interf;
1631 int interfValid = 0;
1632 struct Identity *identP = NULL;
1635 char hoststr[16], hoststr2[16];
1637 struct rx_connection *cb_conn = NULL;
1638 struct rx_connection *cb_in = NULL;
1640 caps.Capabilities_val = NULL;
1642 haddr = rxr_HostOf(tcon);
1643 hport = rxr_PortOf(tcon);
1646 rx_DestroyConnection(cb_in);
1649 if (caps.Capabilities_val)
1650 free(caps.Capabilities_val);
1651 caps.Capabilities_val = NULL;
1652 caps.Capabilities_len = 0;
1655 if (h_Lookup_r(haddr, hport, &host))
1657 identP = (struct Identity *)rx_GetSpecific(tcon, rxcon_ident_key);
1658 if (host && !identP && !(host->Console & 1)) {
1659 /* This is a new connection, and we already have a host
1660 * structure for this address. Verify that the identity
1661 * of the caller matches the identity in the host structure.
1663 if ((host->hostFlags & HWHO_INPROGRESS) &&
1664 h_threadquota(host->lock.num_waiting)) {
1670 if (!(host->hostFlags & ALTADDR) ||
1671 (host->hostFlags & HOSTDELETED)) {
1672 /* Another thread is doing initialization
1673 * or this host was deleted while we
1674 * waited for the lock. */
1677 ("Host %" AFS_PTR_FMT " (%s:%d) starting h_Lookup again\n",
1678 host, afs_inet_ntoa_r(host->host, hoststr),
1679 ntohs(host->port)));
1683 host->hostFlags |= HWHO_INPROGRESS;
1684 host->hostFlags &= ~ALTADDR;
1686 /* We received a new connection from an IP address/port
1687 * that is associated with 'host' but the address/port of
1688 * the callback connection does not have to match it.
1689 * If there is a match, we can use the existing callback
1690 * connection to verify the UUID. If they do not match
1691 * we need to use a new callback connection to verify the
1692 * UUID of the incoming caller and perhaps use the old
1693 * callback connection to verify that the old address/port
1697 cb_conn = host->callback_rxcon;
1698 rx_GetConnection(cb_conn);
1700 if (haddr == host->host && hport == host->port) {
1701 /* The existing callback connection matches the
1702 * incoming connection so just use it.
1705 RXAFSCB_TellMeAboutYourself(cb_conn, &interf, &caps);
1706 if (code == RXGEN_OPCODE)
1707 code = RXAFSCB_WhoAreYou(cb_conn, &interf);
1709 /* We do not have a match. Create a new connection
1710 * for the new addr/port and use multi_Rx to probe
1711 * both of them simultaneously.
1714 sc = rxnull_NewClientSecurityObject();
1715 cb_in = rx_NewConnection(haddr, hport, 1, sc, 0);
1716 rx_SetConnDeadTime(cb_in, 50);
1717 rx_SetConnHardDeadTime(cb_in, AFS_HARDDEADTIME);
1718 rx_SetConnSecondsUntilNatPing(cb_in, 20);
1721 RXAFSCB_TellMeAboutYourself(cb_in, &interf, &caps);
1722 if (code == RXGEN_OPCODE)
1723 code = RXAFSCB_WhoAreYou(cb_in, &interf);
1725 rx_PutConnection(cb_conn);
1728 if ((code == RXGEN_OPCODE) ||
1729 ((code == 0) && (afs_uuid_equal(&interf.uuid, &nulluuid)))) {
1730 identP = (struct Identity *)malloc(sizeof(struct Identity));
1732 ViceLogThenPanic(0, ("Failed malloc in h_GetHost_r\n"));
1735 rx_SetSpecific(tcon, rxcon_ident_key, identP);
1736 if (cb_in == NULL) {
1737 /* The host on this connection was unable to respond to
1738 * the WhoAreYou. We will treat this as a new connection
1739 * from the existing host. The worst that can happen is
1740 * that we maintain some extra callback state information */
1741 if (host->interface) {
1743 ("Host %" AFS_PTR_FMT " (%s:%d) used to support WhoAreYou, deleting.\n",
1745 afs_inet_ntoa_r(host->host, hoststr),
1746 ntohs(host->port)));
1747 host->hostFlags |= HOSTDELETED;
1748 host->hostFlags &= ~HWHO_INPROGRESS;
1755 /* The incoming connection does not support WhoAreYou but
1756 * the original one might have. Use removeAddress_r() to
1757 * remove this addr/port from the host that was found.
1758 * If there are no more addresses left for the host it
1759 * will be deleted. Then we retry.
1761 removeAddress_r(host, haddr, hport);
1762 host->hostFlags &= ~HWHO_INPROGRESS;
1763 host->hostFlags |= ALTADDR;
1769 } else if (code == 0) {
1771 identP = (struct Identity *)malloc(sizeof(struct Identity));
1773 ViceLogThenPanic(0, ("Failed malloc in h_GetHost_r\n"));
1776 identP->uuid = interf.uuid;
1777 rx_SetSpecific(tcon, rxcon_ident_key, identP);
1778 /* Check whether the UUID on this connection matches
1779 * the UUID in the host structure. If they don't match
1780 * then this is not the same host as before. */
1781 if (!host->interface
1782 || !afs_uuid_equal(&interf.uuid, &host->interface->uuid)) {
1785 ("Uuid doesn't match connection (%s:%d).\n",
1786 afs_inet_ntoa_r(haddr, hoststr), ntohs(hport)));
1787 removeAddress_r(host, haddr, hport);
1790 ("Uuid doesn't match host %" AFS_PTR_FMT " (%s:%d).\n",
1791 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
1793 removeAddress_r(host, host->host, host->port);
1795 host->hostFlags &= ~HWHO_INPROGRESS;
1796 host->hostFlags |= ALTADDR;
1802 /* the UUID matched the client at the incoming addr/port
1803 * but this is not the address of the active callback
1804 * connection. Try that connection and see if the client
1805 * is still there and if the reported UUID is the same.
1808 afsUUID uuid = host->interface->uuid;
1809 cb_conn = host->callback_rxcon;
1810 rx_GetConnection(cb_conn);
1811 rx_SetConnDeadTime(cb_conn, 2);
1812 rx_SetConnHardDeadTime(cb_conn, AFS_HARDDEADTIME);
1814 code2 = RXAFSCB_ProbeUuid(cb_conn, &uuid);
1816 rx_SetConnDeadTime(cb_conn, 50);
1817 rx_SetConnHardDeadTime(cb_conn, AFS_HARDDEADTIME);
1818 rx_PutConnection(cb_conn);
1821 /* The primary address is either not responding or
1822 * is not the client we are looking for. Need to
1823 * remove the primary address and add swap in the new
1824 * callback connection, and destroy the old one.
1826 struct rx_connection *rxconn;
1827 ViceLog(0,("CB: ProbeUuid for host %" AFS_PTR_FMT " (%s:%d) failed %d\n",
1829 afs_inet_ntoa_r(host->host, hoststr),
1830 ntohs(host->port),code2));
1833 * make sure we add and then remove. otherwise, we
1834 * might end up with no valid interfaces after the
1835 * remove and the host will have been marked deleted.
1837 addInterfaceAddr_r(host, haddr, hport);
1838 removeInterfaceAddr_r(host, host->host, host->port);
1841 rxconn = host->callback_rxcon;
1842 host->callback_rxcon = cb_in;
1847 * If rx_DestroyConnection calls h_FreeConnection we
1848 * will deadlock on the host_glock_mutex. Work around
1849 * the problem by unhooking the client from the
1850 * connection before destroying the connection.
1852 rx_SetSpecific(rxconn, rxcon_client_key, (void *)0);
1853 rx_DestroyConnection(rxconn);
1859 /* A callback to the incoming connection address is failing.
1860 * Assume that the addr/port is no longer associated with the host
1861 * returned by h_Lookup_r.
1864 ("CB: WhoAreYou failed for connection (%s:%d) , error %d\n",
1865 afs_inet_ntoa_r(haddr, hoststr), ntohs(hport), code));
1866 removeAddress_r(host, haddr, hport);
1867 host->hostFlags &= ~HWHO_INPROGRESS;
1868 host->hostFlags |= ALTADDR;
1872 rx_DestroyConnection(cb_in);
1877 ("CB: WhoAreYou failed for host %" AFS_PTR_FMT " (%s:%d), error %d\n",
1878 host, afs_inet_ntoa_r(host->host, hoststr),
1879 ntohs(host->port), code));
1880 host->hostFlags |= VENUSDOWN;
1883 if (caps.Capabilities_val
1884 && (caps.Capabilities_val[0] & CLIENT_CAPABILITY_ERRORTRANS))
1885 host->hostFlags |= HERRORTRANS;
1887 host->hostFlags &= ~(HERRORTRANS);
1888 host->hostFlags |= ALTADDR;
1889 host->hostFlags &= ~HWHO_INPROGRESS;
1892 if (!(host->hostFlags & ALTADDR)) {
1893 /* another thread is doing the initialisation */
1895 ("Host %" AFS_PTR_FMT " (%s:%d) waiting for host-init to complete\n",
1896 host, afs_inet_ntoa_r(host->host, hoststr),
1897 ntohs(host->port)));
1901 ("Host %" AFS_PTR_FMT " (%s:%d) starting h_Lookup again\n",
1902 host, afs_inet_ntoa_r(host->host, hoststr),
1903 ntohs(host->port)));
1907 /* We need to check whether the identity in the host structure
1908 * matches the identity on the connection. If they don't match
1909 * then treat this a new host. */
1910 if (!(host->Console & 1)
1911 && ((!identP->valid && host->interface)
1912 || (identP->valid && !host->interface)
1914 && !afs_uuid_equal(&identP->uuid,
1915 &host->interface->uuid)))) {
1916 char uuid1[128], uuid2[128];
1918 afsUUID_to_string(&identP->uuid, uuid1, 127);
1919 if (host->interface)
1920 afsUUID_to_string(&host->interface->uuid, uuid2, 127);
1922 ("CB: new identity for host %p (%s:%d), "
1923 "deleting(%x %p %s %s)\n",
1924 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
1925 identP->valid, host->interface,
1926 identP->valid ? uuid1 : "no_uuid",
1927 host->interface ? uuid2 : "no_uuid"));
1929 /* The host in the cache is not the host for this connection */
1931 host->hostFlags |= HOSTDELETED;
1937 host = h_Alloc_r(tcon); /* returned held and locked */
1940 h_gethostcps_r(host, FT_ApproxTime());
1941 if (!(host->Console & 1)) {
1943 cb_conn = host->callback_rxcon;
1944 rx_GetConnection(cb_conn);
1945 host->hostFlags |= HWHO_INPROGRESS;
1948 RXAFSCB_TellMeAboutYourself(cb_conn, &interf, &caps);
1949 if (code == RXGEN_OPCODE)
1950 code = RXAFSCB_WhoAreYou(cb_conn, &interf);
1951 rx_PutConnection(cb_conn);
1954 if ((code == RXGEN_OPCODE) ||
1955 ((code == 0) && (afs_uuid_equal(&interf.uuid, &nulluuid)))) {
1958 (struct Identity *)malloc(sizeof(struct Identity));
1963 ViceLogThenPanic(0, ("Failed malloc in h_GetHost_r\n"));
1967 rx_SetSpecific(tcon, rxcon_ident_key, identP);
1969 ("Host %" AFS_PTR_FMT " (%s:%d) does not support WhoAreYou.\n",
1970 host, afs_inet_ntoa_r(host->host, hoststr),
1971 ntohs(host->port)));
1973 } else if (code == 0) {
1976 (struct Identity *)malloc(sizeof(struct Identity));
1981 ViceLogThenPanic(0, ("Failed malloc in h_GetHost_r\n"));
1985 identP->uuid = interf.uuid;
1987 rx_SetSpecific(tcon, rxcon_ident_key, identP);
1989 ("WhoAreYou success on host %" AFS_PTR_FMT " (%s:%d)\n",
1990 host, afs_inet_ntoa_r(host->host, hoststr),
1991 ntohs(host->port)));
1993 if (code == 0 && !identP->valid) {
1994 cb_conn = host->callback_rxcon;
1995 rx_GetConnection(cb_conn);
1997 code = RXAFSCB_InitCallBackState(cb_conn);
1998 rx_PutConnection(cb_conn);
2001 } else if (code == 0) {
2002 oldHost = h_LookupUuid_r(&identP->uuid);
2007 if (oldHost->hostFlags & HOSTDELETED) {
2008 h_Unlock_r(oldHost);
2009 h_Release_r(oldHost);
2017 /* This is a new address for an existing host. Update
2018 * the list of interfaces for the existing host and
2019 * delete the host structure we just allocated. */
2021 /* mark the duplicate host as deleted before we do
2022 * anything. The probing code below may try to change
2023 * "oldHost" to the same IP address as "host" currently
2024 * has, and we do not want a pseudo-"collision" to be
2026 host->hostFlags |= HOSTDELETED;
2028 oldHost->hostFlags |= HWHO_INPROGRESS;
2030 if (oldHost->interface) {
2032 afsUUID uuid = oldHost->interface->uuid;
2033 cb_conn = oldHost->callback_rxcon;
2034 rx_GetConnection(cb_conn);
2035 rx_SetConnDeadTime(cb_conn, 2);
2036 rx_SetConnHardDeadTime(cb_conn, AFS_HARDDEADTIME);
2038 code2 = RXAFSCB_ProbeUuid(cb_conn, &uuid);
2040 rx_SetConnDeadTime(cb_conn, 50);
2041 rx_SetConnHardDeadTime(cb_conn, AFS_HARDDEADTIME);
2042 rx_PutConnection(cb_conn);
2045 /* The primary address is either not responding or
2046 * is not the client we are looking for.
2047 * MultiProbeAlternateAddress_r() will remove the
2048 * alternate interfaces that do not have the same
2050 ViceLog(0,("CB: ProbeUuid for host %" AFS_PTR_FMT " (%s:%d) failed %d\n",
2052 afs_inet_ntoa_r(oldHost->host, hoststr),
2053 ntohs(oldHost->port),code2));
2055 if (MultiProbeAlternateAddress_r(oldHost)) {
2056 /* If MultiProbeAlternateAddress_r succeeded,
2057 * it updated oldHost->host and oldHost->port
2058 * to an address that responded successfully to
2059 * a ProbeUuid, so it is as if the ProbeUuid
2060 * call above returned success. So, only set
2061 * 'probefail' if MultiProbeAlternateAddress_r
2070 if (oldHost->host != haddr || oldHost->port != hport) {
2071 struct rx_connection *rxconn;
2074 ("CB: Host %" AFS_PTR_FMT " (%s:%d) has new addr %s:%d\n",
2076 afs_inet_ntoa_r(oldHost->host, hoststr2),
2077 ntohs(oldHost->port),
2078 afs_inet_ntoa_r(haddr, hoststr),
2081 * add then remove. otherwise the host may get marked
2082 * deleted if we removed the only valid address.
2084 addInterfaceAddr_r(oldHost, haddr, hport);
2085 if (probefail || oldHost->host == haddr) {
2087 * The probe failed which means that the old
2088 * address is either unreachable or is not the
2089 * same host we were just contacted by. We will
2090 * also remove addresses if only the port has
2091 * changed because that indicates the client
2094 removeInterfaceAddr_r(oldHost, oldHost->host, oldHost->port);
2097 struct Interface *interface = oldHost->interface;
2098 int number = oldHost->interface->numberOfInterfaces;
2099 for (i = 0; i < number; i++) {
2100 if (interface->interface[i].addr == haddr &&
2101 interface->interface[i].port != hport) {
2103 * We have just been contacted by a client
2104 * that has been seen from behind a NAT
2105 * and at least one other address.
2107 removeInterfaceAddr_r(oldHost, haddr,
2108 interface->interface[i].port);
2113 oldHost->host = haddr;
2114 oldHost->port = hport;
2115 rxconn = oldHost->callback_rxcon;
2116 oldHost->callback_rxcon = host->callback_rxcon;
2117 host->callback_rxcon = rxconn;
2119 /* don't destroy rxconn here; let h_TossStuff_r
2120 * take care of that via h_Release_r below */
2122 host->hostFlags &= ~HWHO_INPROGRESS;
2124 /* release host because it was allocated by h_Alloc_r */
2127 /* the new host is held and locked */
2129 /* This really is a new host */
2130 h_AddHostToUuidHashTable_r(&identP->uuid, host);
2131 cb_conn = host->callback_rxcon;
2132 rx_GetConnection(cb_conn);
2135 RXAFSCB_InitCallBackState3(cb_conn,
2137 rx_PutConnection(cb_conn);
2142 ("InitCallBackState3 success on host %" AFS_PTR_FMT " (%s:%d)\n",
2143 host, afs_inet_ntoa_r(host->host, hoststr),
2144 ntohs(host->port)));
2145 osi_Assert(interfValid == 1);
2146 initInterfaceAddr_r(host, &interf);
2152 ("CB: RCallBackConnectBack failed for %" AFS_PTR_FMT " (%s:%d)\n",
2153 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
2154 host->hostFlags |= VENUSDOWN;
2157 ("CB: RCallBackConnectBack succeeded for %" AFS_PTR_FMT " (%s:%d)\n",
2158 host, afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
2159 host->hostFlags |= RESETDONE;
2162 if (caps.Capabilities_val
2163 && (caps.Capabilities_val[0] & CLIENT_CAPABILITY_ERRORTRANS))
2164 host->hostFlags |= HERRORTRANS;
2166 host->hostFlags &= ~(HERRORTRANS);
2167 host->hostFlags |= ALTADDR; /* host structure initialization complete */
2168 host->hostFlags &= ~HWHO_INPROGRESS;
2173 if (caps.Capabilities_val)
2174 free(caps.Capabilities_val);
2175 caps.Capabilities_val = NULL;
2176 caps.Capabilities_len = 0;
2178 rx_DestroyConnection(cb_in);
2186 static char localcellname[PR_MAXNAMELEN + 1];
2187 char local_realms[AFS_NUM_LREALMS][AFS_REALM_SZ];
2188 int num_lrealms = -1;
2192 h_InitHostPackage(void)
2194 memset(&nulluuid, 0, sizeof(afsUUID));
2195 afsconf_GetLocalCell(confDir, localcellname, PR_MAXNAMELEN);
2196 if (num_lrealms == -1) {
2198 for (i=0; i<AFS_NUM_LREALMS; i++) {
2199 if (afs_krb_get_lrealm(local_realms[i], i) != 0 /*KSUCCESS*/)
2205 ("afs_krb_get_lrealm failed, using %s.\n",
2207 strncpy(local_realms[0], localcellname, AFS_REALM_SZ);
2213 /* initialize the rest of the local realms to nullstring for debugging */
2214 for (; i<AFS_NUM_LREALMS; i++)
2215 local_realms[i][0] = '\0';
2217 rxcon_ident_key = rx_KeyCreate((rx_destructor_t) free);
2218 rxcon_client_key = rx_KeyCreate((rx_destructor_t) 0);
2219 MUTEX_INIT(&host_glock_mutex, "host glock", MUTEX_DEFAULT, 0);
2223 MapName_r(char *aname, char *acell, afs_int32 * aval)
2228 afs_int32 anamelen, cnamelen;
2232 anamelen = strlen(aname);
2233 if (anamelen >= PR_MAXNAMELEN)
2234 return -1; /* bad name -- caller interprets this as anonymous, but retries later */
2236 lnames.namelist_len = 1;
2237 lnames.namelist_val = (prname *) aname; /* don't malloc in the common case */
2238 lids.idlist_len = 0;
2239 lids.idlist_val = NULL;
2241 cnamelen = strlen(acell);
2243 if (afs_is_foreign_ticket_name(aname, NULL, acell, localcellname)) {
2245 ("MapName: cell is foreign. cell=%s, localcell=%s, localrealms={%s,%s,%s,%s}\n",
2246 acell, localcellname, local_realms[0],local_realms[1],local_realms[2],local_realms[3]));
2247 if ((anamelen + cnamelen + 1) >= PR_MAXNAMELEN) {
2249 ("MapName: Name too long, using AnonymousID for %s@%s\n",
2251 *aval = AnonymousID;
2254 foreign = 1; /* attempt cross-cell authentication */
2255 tname = (char *)malloc(PR_MAXNAMELEN);
2257 ViceLogThenPanic(0, ("Failed malloc in MapName_r\n"));
2259 strcpy(tname, aname);
2260 tname[anamelen] = '@';
2261 strcpy(tname + anamelen + 1, acell);
2262 lnames.namelist_val = (prname *) tname;
2267 code = hpr_NameToId(&lnames, &lids);
2270 if (lids.idlist_val) {
2271 *aval = lids.idlist_val[0];
2272 if (*aval == AnonymousID) {
2274 ("MapName: NameToId on %s returns anonymousID\n",
2275 lnames.namelist_val[0]));
2277 free(lids.idlist_val); /* return parms are not malloced in stub if server proc aborts */
2280 ("MapName: NameToId on '%s' is unknown\n",
2281 lnames.namelist_val[0]));
2287 free(lnames.namelist_val); /* We allocated this above, so we must free it now. */
2295 /* NOTE: this returns the client with a Write lock and a refCount */
2297 h_ID2Client(afs_int32 vid)
2299 struct client *client;
2304 for (count = 0, host = hostList; host && count < hostCount; host = host->next, count++) {
2305 if (host->hostFlags & HOSTDELETED)
2307 for (client = host->FirstClient; client; client = client->next) {
2308 if (!client->deleted && client->ViceId == vid) {
2311 ObtainWriteLock(&client->lock);
2316 if (count != hostCount) {
2317 ViceLog(0, ("h_ID2Client found %d of %d hosts\n", count, hostCount));
2318 } else if (host != NULL) {
2319 ViceLog(0, ("h_ID2Client found more than %d hosts\n", hostCount));
2320 ShutDownAndCore(PANIC);
2328 * Called by the server main loop. Returns a h_Held client, which must be
2329 * released later the main loop. Allocates a client if the matching one
2330 * isn't around. The client is returned with its reference count incremented
2331 * by one. The caller must call h_ReleaseClient_r when finished with
2334 * The refCount on client->host is returned incremented. h_ReleaseClient_r
2335 * does not decrement the refCount on client->host.
2338 h_FindClient_r(struct rx_connection *tcon)
2340 struct client *client;
2341 struct host *host = NULL;
2342 struct client *oldClient;
2343 afs_int32 viceid = 0;
2347 #if (64-MAXKTCNAMELEN)
2348 ticket name length != 64
2352 char uname[PR_MAXNAMELEN];
2353 char tcell[MAXKTCREALMLEN];
2357 client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
2358 if (client && client->sid == rx_GetConnectionId(tcon)
2359 && client->VenusEpoch == rx_GetConnectionEpoch(tcon)
2360 && !(client->host->hostFlags & HOSTDELETED)
2361 && !client->deleted) {
2364 h_Hold_r(client->host);
2365 if (client->prfail != 2) {
2366 /* Could add shared lock on client here */
2367 /* note that we don't have to lock entry in this path to
2368 * ensure CPS is initialized, since we don't call rx_SetSpecific
2369 * until initialization is done, and we only get here if
2370 * rx_GetSpecific located the client structure.
2375 ObtainWriteLock(&client->lock); /* released at end */
2381 authClass = rx_SecurityClassOf((struct rx_connection *)tcon);
2383 ("FindClient: authenticating connection: authClass=%d\n",
2385 if (authClass == 1) {
2386 /* A bcrypt tickets, no longer supported */
2387 ViceLog(1, ("FindClient: bcrypt ticket, using AnonymousID\n"));
2388 viceid = AnonymousID;
2389 expTime = 0x7fffffff;
2390 } else if (authClass == 2) {
2393 /* kerberos ticket */
2394 code = rxkad_GetServerInfo(tcon, /*level */ 0, (afs_uint32 *)&expTime,
2395 tname, tinst, tcell, &kvno);
2397 ViceLog(1, ("Failed to get rxkad ticket info\n"));
2398 viceid = AnonymousID;
2399 expTime = 0x7fffffff;
2401 int ilen = strlen(tinst);
2403 ("FindClient: rxkad conn: name=%s,inst=%s,cell=%s,exp=%d,kvno=%d\n",
2404 tname, tinst, tcell, expTime, kvno));
2405 strncpy(uname, tname, sizeof(uname));
2407 if (strlen(uname) + 1 + ilen >= sizeof(uname))
2410 strcat(uname, tinst);
2412 /* translate the name to a vice id */
2413 code = MapName_r(uname, tcell, &viceid);
2417 ("failed to map name=%s, cell=%s -> code=%d\n", uname,
2420 viceid = AnonymousID;
2421 expTime = 0x7fffffff;
2425 viceid = AnonymousID; /* unknown security class */
2426 expTime = 0x7fffffff;
2429 if (!client) { /* loop */
2430 host = h_GetHost_r(tcon); /* Returns with incremented refCount */
2436 /* First try to find the client structure */
2437 for (client = host->FirstClient; client; client = client->next) {
2438 if (!client->deleted && (client->sid == rx_GetConnectionId(tcon))
2439 && (client->VenusEpoch == rx_GetConnectionEpoch(tcon))) {
2442 ObtainWriteLock(&client->lock);
2448 /* Still no client structure - get one */
2451 if (host->hostFlags & HOSTDELETED) {
2456 /* Retry to find the client structure */
2457 for (client = host->FirstClient; client; client = client->next) {
2458 if (!client->deleted && (client->sid == rx_GetConnectionId(tcon))
2459 && (client->VenusEpoch == rx_GetConnectionEpoch(tcon))) {
2461 goto retryfirstclient;
2466 ObtainWriteLock(&client->lock);
2467 client->refCount = 1;
2468 client->host = host;
2469 client->InSameNetwork = host->InSameNetwork;
2470 client->ViceId = viceid;
2471 client->expTime = expTime; /* rx only */
2472 client->authClass = authClass; /* rx only */
2473 client->sid = rx_GetConnectionId(tcon);
2474 client->VenusEpoch = rx_GetConnectionEpoch(tcon);
2475 client->CPS.prlist_val = NULL;
2476 client->CPS.prlist_len = 0;
2480 client->prfail = fail;
2482 if (!(client->CPS.prlist_val) || (viceid != client->ViceId)) {
2483 client->CPS.prlist_len = 0;
2484 if (client->CPS.prlist_val && (client->ViceId != ANONYMOUSID))
2485 free(client->CPS.prlist_val);
2486 client->CPS.prlist_val = NULL;
2487 client->ViceId = viceid;
2488 client->expTime = expTime;
2490 if (viceid == ANONYMOUSID) {
2491 client->CPS.prlist_len = AnonCPS.prlist_len;
2492 client->CPS.prlist_val = AnonCPS.prlist_val;
2495 code = hpr_GetCPS(viceid, &client->CPS);
2500 ("pr_GetCPS failed(%d) for user %d, host %" AFS_PTR_FMT " (%s:%d)\n",
2501 code, viceid, client->host,
2502 afs_inet_ntoa_r(client->host->host,hoststr),
2503 ntohs(client->host->port)));
2505 /* Although ubik_Call (called by pr_GetCPS) traverses thru
2506 * all protection servers and reevaluates things if no
2507 * sync server or quorum is found we could still end up
2508 * with one of these errors. In such case we would like to
2509 * reevaluate the rpc call to find if there's cps for this
2510 * guy. We treat other errors (except network failures
2511 * ones - i.e. code < 0) as an indication that there is no
2512 * CPS for this host. Ideally we could like to deal this
2513 * problem the other way around (i.e. if code == NOCPS
2514 * ignore else retry next time) but the problem is that
2515 * there're other errors (i.e. EPERM) for which we don't
2516 * want to retry and we don't know the whole code list!
2518 if (code < 0 || code == UNOQUORUM || code == UNOTSYNC)
2522 /* the disabling of system:administrators is so iffy and has so many
2523 * possible failure modes that we will disable it again */
2524 /* Turn off System:Administrator for safety
2525 * if (AL_IsAMember(SystemId, client->CPS) == 0)
2526 * osi_Assert(AL_DisableGroup(SystemId, client->CPS) == 0); */
2529 /* Now, tcon may already be set to a rock, since we blocked with no host
2530 * or client locks set above in pr_GetCPS (XXXX some locking is probably
2531 * required). So, before setting the RPC's rock, we should disconnect
2532 * the RPC from the other client structure's rock.
2534 oldClient = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
2535 if (oldClient && oldClient != client
2536 && oldClient->sid == rx_GetConnectionId(tcon)
2537 && oldClient->VenusEpoch == rx_GetConnectionEpoch(tcon)
2538 && !(oldClient->host->hostFlags & HOSTDELETED)) {
2540 if (!oldClient->deleted) {
2541 /* if we didn't create it, it's not ours to put back */
2543 ViceLog(0, ("FindClient: stillborn client %p(%x); "
2544 "conn %p (host %s:%d) had client %p(%x)\n",
2545 client, client->sid, tcon,
2546 afs_inet_ntoa_r(rxr_HostOf(tcon), hoststr),
2547 ntohs(rxr_PortOf(tcon)),
2548 oldClient, oldClient->sid));
2549 if ((client->ViceId != ANONYMOUSID) && client->CPS.prlist_val)
2550 free(client->CPS.prlist_val);
2551 client->CPS.prlist_val = NULL;
2552 client->CPS.prlist_len = 0;
2554 /* We should perhaps check for 0 here */
2556 ReleaseWriteLock(&client->lock);
2561 oldClient->refCount++;
2563 h_Hold_r(oldClient->host);
2564 h_Release_r(client->host);
2567 ObtainWriteLock(&oldClient->lock);
2570 host = oldClient->host;
2572 ViceLog(0, ("FindClient: deleted client %p(%x ref %d host %p href "
2573 "%d) already had conn %p (host %s:%d, cid %x), stolen "
2574 "by client %p(%x, ref %d host %p href %d)\n",
2575 oldClient, oldClient->sid, oldClient->refCount,
2576 oldClient->host, oldClient->host->refCount, tcon,
2577 afs_inet_ntoa_r(rxr_HostOf(tcon), hoststr),
2578 ntohs(rxr_PortOf(tcon)), rx_GetConnectionId(tcon),
2579 client, client->sid, client->refCount,
2580 client->host, client->host->refCount));
2581 /* rx_SetSpecific will be done immediately below */
2584 /* Avoid chaining in more than once. */
2588 if (host->hostFlags & HOSTDELETED) {
2593 client->host = NULL;
2595 if ((client->ViceId != ANONYMOUSID) && client->CPS.prlist_val)
2596 free(client->CPS.prlist_val);
2597 client->CPS.prlist_val = NULL;
2598 client->CPS.prlist_len = 0;
2601 ReleaseWriteLock(&client->lock);
2606 client->next = host->FirstClient;
2607 host->FirstClient = client;
2609 CurrentConnections++; /* increment number of connections */
2611 rx_SetSpecific(tcon, rxcon_client_key, client);
2612 ReleaseWriteLock(&client->lock);
2616 } /*h_FindClient_r */
2619 h_ReleaseClient_r(struct client *client)
2621 osi_Assert(client->refCount > 0);
2628 * Sigh: this one is used to get the client AGAIN within the individual
2629 * server routines. This does not bother h_Holding the host, since
2630 * this is assumed already have been done by the server main loop.
2631 * It does check tokens, since only the server routines can return the
2632 * VICETOKENDEAD error code
2635 GetClient(struct rx_connection *tcon, struct client **cp)
2637 struct client *client;
2642 client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
2643 if (client == NULL) {
2645 ("GetClient: no client in conn %p (host %s:%d), VBUSYING\n",
2646 tcon, afs_inet_ntoa_r(rxr_HostOf(tcon), hoststr),
2647 ntohs(rxr_PortOf(tcon))));
2651 if (rx_GetConnectionId(tcon) != client->sid
2652 || rx_GetConnectionEpoch(tcon) != client->VenusEpoch) {
2654 ("GetClient: tcon %p tcon sid %d client sid %d\n",
2655 tcon, rx_GetConnectionId(tcon), client->sid));
2659 if (client && client->LastCall > client->expTime && client->expTime) {
2661 ("Token for %s at %s:%d expired %d\n", h_UserName(client),
2662 afs_inet_ntoa_r(client->host->host, hoststr),
2663 ntohs(client->host->port), client->expTime));
2665 return VICETOKENDEAD;
2667 if (client->deleted) {
2668 ViceLog(0, ("GetClient: got deleted client, connection will appear "
2669 "anonymous; tcon %p cid %x client %p ref %d host %p "
2670 "(%s:%d) href %d ViceId %d\n",
2671 tcon, rx_GetConnectionId(tcon), client, client->refCount,
2673 afs_inet_ntoa_r(client->host->host, hoststr),
2674 (int)ntohs(client->host->port), client->host->refCount,
2675 (int)client->ViceId));
2685 PutClient(struct client **cp)
2691 h_ReleaseClient_r(*cp);
2698 /* Client user name for short term use. Note that this is NOT inexpensive */
2700 h_UserName(struct client *client)
2702 static char User[PR_MAXNAMELEN + 1];
2706 lids.idlist_len = 1;
2707 lids.idlist_val = (afs_int32 *) malloc(1 * sizeof(afs_int32));
2708 if (!lids.idlist_val) {
2709 ViceLogThenPanic(0, ("Failed malloc in h_UserName\n"));
2711 lnames.namelist_len = 0;
2712 lnames.namelist_val = (prname *) 0;
2713 lids.idlist_val[0] = client->ViceId;
2714 if (hpr_IdToName(&lids, &lnames)) {
2715 /* We need to free id we alloced above! */
2716 free(lids.idlist_val);
2717 return "*UNKNOWN USER NAME*";
2719 strncpy(User, lnames.namelist_val[0], PR_MAXNAMELEN);
2720 free(lids.idlist_val);
2721 free(lnames.namelist_val);
2730 ("Total Client entries = %d, blocks = %d; Host entries = %d, blocks = %d\n",
2731 CEs, CEBlocks, HTs, HTBlocks));
2737 h_PrintClient(struct host *host, void *rock)
2739 StreamHandle_t *file = (StreamHandle_t *)rock;
2740 struct client *client;
2745 time_t LastCall, expTime;
2749 LastCall = host->LastCall;
2750 if (host->hostFlags & HOSTDELETED) {
2754 strftime(tbuffer, sizeof(tbuffer), "%a %b %d %H:%M:%S %Y",
2755 localtime_r(&LastCall, &tm));
2756 snprintf(tmpStr, sizeof tmpStr, "Host %s:%d down = %d, LastCall %s\n",
2757 afs_inet_ntoa_r(host->host, hoststr),
2758 ntohs(host->port), (host->hostFlags & VENUSDOWN),
2760 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2761 for (client = host->FirstClient; client; client = client->next) {
2762 if (!client->deleted) {
2763 expTime = client->expTime;
2764 strftime(tbuffer, sizeof(tbuffer), "%a %b %d %H:%M:%S %Y",
2765 localtime_r(&expTime, &tm));
2766 snprintf(tmpStr, sizeof tmpStr,
2767 " user id=%d, name=%s, sl=%s till %s\n",
2768 client->ViceId, h_UserName(client),
2769 client->authClass ? "Authenticated"
2770 : "Not authenticated",
2771 client->authClass ? tbuffer : "No Limit");
2772 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2773 snprintf(tmpStr, sizeof tmpStr, " CPS-%d is [",
2774 client->CPS.prlist_len);
2775 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2776 if (client->CPS.prlist_val) {
2777 for (i = 0; i < client->CPS.prlist_len; i++) {
2778 snprintf(tmpStr, sizeof tmpStr, " %d",
2779 client->CPS.prlist_val[i]);
2780 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2783 sprintf(tmpStr, "]\n");
2784 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2790 } /*h_PrintClient */
2795 * Print a list of clients, with last security level and token value seen,
2799 h_PrintClients(void)
2806 StreamHandle_t *file = STREAM_OPEN(AFSDIR_SERVER_CLNTDUMP_FILEPATH, "w");
2810 ("Couldn't create client dump file %s\n",
2811 AFSDIR_SERVER_CLNTDUMP_FILEPATH));
2814 now = FT_ApproxTime();
2815 strftime(tbuffer, sizeof(tbuffer), "%a %b %d %H:%M:%S %Y",
2816 localtime_r(&now, &tm));
2817 snprintf(tmpStr, sizeof tmpStr, "List of active users at %s\n\n",
2819 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2820 h_Enumerate(h_PrintClient, (char *)file);
2821 STREAM_REALLYCLOSE(file);
2822 ViceLog(0, ("Created client dump %s\n", AFSDIR_SERVER_CLNTDUMP_FILEPATH));
2829 h_DumpHost(struct host *host, void *rock)
2831 StreamHandle_t *file = (StreamHandle_t *)rock;
2838 snprintf(tmpStr, sizeof tmpStr,
2839 "ip:%s port:%d hidx:%d cbid:%d lock:%x last:%u active:%u "
2840 "down:%d del:%d cons:%d cldel:%d\n\t hpfailed:%d hcpsCall:%u "
2842 afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
2843 host->index, host->cblist, CheckLock(&host->lock),
2844 host->LastCall, host->ActiveCall, (host->hostFlags & VENUSDOWN),
2845 host->hostFlags & HOSTDELETED, host->Console,
2846 host->hostFlags & CLIENTDELETED, host->hcpsfailed,
2848 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2849 if (host->hcps.prlist_val)
2850 for (i = 0; i < host->hcps.prlist_len; i++) {
2851 snprintf(tmpStr, sizeof tmpStr, " %d", host->hcps.prlist_val[i]);
2852 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2854 sprintf(tmpStr, "] [");
2855 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2856 if (host->interface)
2857 for (i = 0; i < host->interface->numberOfInterfaces; i++) {
2859 sprintf(tmpStr, " %s:%d",
2860 afs_inet_ntoa_r(host->interface->interface[i].addr, hoststr),
2861 ntohs(host->interface->interface[i].port));
2862 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2864 sprintf(tmpStr, "] refCount:%d hostFlags:%hu\n", host->refCount, host->hostFlags);
2865 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2877 StreamHandle_t *file = STREAM_OPEN(AFSDIR_SERVER_HOSTDUMP_FILEPATH, "w");
2884 ("Couldn't create host dump file %s\n",
2885 AFSDIR_SERVER_HOSTDUMP_FILEPATH));
2888 now = FT_ApproxTime();
2889 strftime(tbuffer, sizeof(tbuffer), "%a %b %d %H:%M:%S %Y",
2890 localtime_r(&now, &tm));
2891 snprintf(tmpStr, sizeof tmpStr, "List of active hosts at %s\n\n", tbuffer);
2892 (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
2893 h_Enumerate(h_DumpHost, (char *)file);
2894 STREAM_REALLYCLOSE(file);
2895 ViceLog(0, ("Created host dump %s\n", AFSDIR_SERVER_HOSTDUMP_FILEPATH));
2899 #ifdef AFS_DEMAND_ATTACH_FS
2902 * host state serialization
2904 static int h_stateFillHeader(struct host_state_header * hdr);
2905 static int h_stateCheckHeader(struct host_state_header * hdr);
2906 static int h_stateAllocMap(struct fs_dump_state * state);
2907 static int h_stateSaveHost(struct host * host, void *rock);
2908 static int h_stateRestoreHost(struct fs_dump_state * state);
2909 static int h_stateRestoreIndex(struct host * h, void *rock);
2910 static int h_stateVerifyHost(struct host * h, void *rock);
2911 static int h_stateVerifyAddrHash(struct fs_dump_state * state, struct host * h,
2912 afs_uint32 addr, afs_uint16 port, int valid);
2913 static int h_stateVerifyUuidHash(struct fs_dump_state * state, struct host * h);
2914 static void h_hostToDiskEntry_r(struct host * in, struct hostDiskEntry * out);
2915 static void h_diskEntryToHost_r(struct hostDiskEntry * in, struct host * out);
2918 * Is this host busy?
2920 * This is just a hint and should not be trusted; this should probably only be
2921 * used by the host state serialization code when trying to detect if a host
2922 * can be sanely serialized to disk or not. If this function returns 1, the
2923 * host may be in an invalid state and thus should not be saved to disk.
2926 h_isBusy_r(struct host *host)
2928 struct Lock *hostLock = &host->lock;
2931 LOCK_LOCK(hostLock);
2932 if (hostLock->excl_locked || hostLock->readers_reading) {
2935 LOCK_UNLOCK(hostLock);
2941 if ((host->hostFlags & HWHO_INPROGRESS) || !(host->hostFlags & ALTADDR)) {
2942 /* We shouldn't hit this if the host wasn't locked, but just in case... */
2949 /* this procedure saves all host state to disk for fast startup */
2951 h_stateSave(struct fs_dump_state * state)
2953 AssignInt64(state->eof_offset, &state->hdr->h_offset);
2956 ViceLog(0, ("h_stateSave: hostCount=%d\n", hostCount));
2958 /* invalidate host state header */
2959 memset(state->h_hdr, 0, sizeof(struct host_state_header));
2961 if (fs_stateWriteHeader(state, &state->hdr->h_offset, state->h_hdr,
2962 sizeof(struct host_state_header))) {
2967 fs_stateIncEOF(state, sizeof(struct host_state_header));
2969 h_Enumerate_r(h_stateSaveHost, hostList, (char *)state);
2974 h_stateFillHeader(state->h_hdr);
2976 /* write the real header to disk */
2977 state->bail = fs_stateWriteHeader(state, &state->hdr->h_offset, state->h_hdr,
2978 sizeof(struct host_state_header));
2985 * host state serialization
2987 * this procedure restores all host state from a disk for fast startup
2990 h_stateRestore(struct fs_dump_state * state)
2994 /* seek to the right position and read in the host state header */
2995 if (fs_stateReadHeader(state, &state->hdr->h_offset, state->h_hdr,
2996 sizeof(struct host_state_header))) {
3001 /* check the validity of the header */
3002 if (h_stateCheckHeader(state->h_hdr)) {
3007 records = state->h_hdr->records;
3009 if (h_stateAllocMap(state)) {
3014 /* iterate over records restoring host state */
3015 for (i=0; i < records; i++) {
3016 if (h_stateRestoreHost(state) != 0) {
3027 h_stateRestoreIndices(struct fs_dump_state * state)
3029 h_Enumerate_r(h_stateRestoreIndex, hostList, (char *)state);
3034 h_stateRestoreIndex(struct host * h, void *rock)
3036 struct fs_dump_state *state = (struct fs_dump_state *)rock;
3037 if (cb_OldToNew(state, h->cblist, &h->cblist)) {
3038 return H_ENUMERATE_BAIL(0);
3044 h_stateVerify(struct fs_dump_state * state)
3046 h_Enumerate_r(h_stateVerifyHost, hostList, (char *)state);
3051 h_stateVerifyHost(struct host * h, void* rock)
3053 struct fs_dump_state *state = (struct fs_dump_state *)rock;
3057 ViceLog(0, ("h_stateVerifyHost: error: NULL host pointer in linked list\n"));
3058 return H_ENUMERATE_BAIL(0);
3062 for (i = h->interface->numberOfInterfaces-1; i >= 0; i--) {
3063 if (h_stateVerifyAddrHash(state, h, h->interface->interface[i].addr,
3064 h->interface->interface[i].port,
3065 h->interface->interface[i].valid)) {
3069 if (h_stateVerifyUuidHash(state, h)) {
3072 } else if (h_stateVerifyAddrHash(state, h, h->host, h->port, 1)) {
3076 if (cb_stateVerifyHCBList(state, h)) {
3084 * verify a host is either in, or absent from, the addr hash table.
3086 * @param[in] state fs dump state
3087 * @param[in] h host we're dealing with
3088 * @param[in] addr addr to look for (NBO)
3089 * @param[in] port port to look for (NBO)
3090 * @param[in] valid 1 if we're verifying that the specified addr and port
3091 * in the hash table point to the specified host. 0 if we're
3092 * verifying that the specified addr and port do NOT point
3093 * to the specified host
3095 * @return operation status
3096 * @retval 1 failed to verify, bail out
3097 * @retval 0 verified successfully, all is well
3100 h_stateVerifyAddrHash(struct fs_dump_state * state, struct host * h,
3101 afs_uint32 addr, afs_uint16 port, int valid)
3103 int ret = 0, found = 0;
3104 struct host *host = NULL;
3105 struct h_AddrHashChain *chain;
3106 int index = h_HashIndex(addr);
3110 for (chain = hostAddrHashTable[index]; chain; chain = chain->next) {
3111 host = chain->hostPtr;
3113 afs_inet_ntoa_r(addr, tmp);
3114 ViceLog(0, ("h_stateVerifyAddrHash: error: addr hash chain has NULL host ptr (lookup addr %s)\n", tmp));
3118 if ((chain->addr == addr) && (chain->port == port)) {
3121 ViceLog(0, ("h_stateVerifyAddrHash: warning: addr hash entry "
3122 "points to different host struct (%d, %d)\n",
3123 h->index, host->index));
3124 state->flags.warnings_generated = 1;
3128 ViceLog(0, ("h_stateVerifyAddrHash: error: addr %s:%u is "
3129 "marked invalid, but points to the containing "
3130 "host\n", afs_inet_ntoa_r(addr, tmp),
3131 (unsigned)htons(port)));
3139 if (chain_len > FS_STATE_H_MAX_ADDR_HASH_CHAIN_LEN) {
3140 ViceLog(0, ("h_stateVerifyAddrHash: error: hash chain length exceeds %d; assuming there's a loop\n",
3141 FS_STATE_H_MAX_ADDR_HASH_CHAIN_LEN));
3148 if (!found && valid) {
3149 afs_inet_ntoa_r(addr, tmp);
3150 if (state->mode == FS_STATE_LOAD_MODE) {
3151 ViceLog(0, ("h_stateVerifyAddrHash: error: addr %s:%u not found in hash\n",
3152 tmp, (unsigned)htons(port)));
3156 ViceLog(0, ("h_stateVerifyAddrHash: warning: addr %s:%u not found in hash\n",
3157 tmp, (unsigned)htons(port)));
3158 state->flags.warnings_generated = 1;
3167 h_stateVerifyUuidHash(struct fs_dump_state * state, struct host * h)
3169 int ret = 0, found = 0;
3170 struct host *host = NULL;
3171 struct h_UuidHashChain *chain;
3172 afsUUID * uuidp = &h->interface->uuid;
3173 int index = h_UuidHashIndex(uuidp);
3177 for (chain = hostUuidHashTable[index]; chain; chain = chain->next) {
3178 host = chain->hostPtr;
3180 afsUUID_to_string(uuidp, tmp, sizeof(tmp));
3181 ViceLog(0, ("h_stateVerifyUuidHash: error: uuid hash chain has NULL host ptr (lookup uuid %s)\n", tmp));
3185 if (host->interface &&
3186 afs_uuid_equal(&host->interface->uuid, uuidp)) {
3188 ViceLog(0, ("h_stateVerifyUuidHash: warning: uuid hash entry points to different host struct (%d, %d)\n",
3189 h->index, host->index));
3190 state->flags.warnings_generated = 1;
3195 if (chain_len > FS_STATE_H_MAX_UUID_HASH_CHAIN_LEN) {
3196 ViceLog(0, ("h_stateVerifyUuidHash: error: hash chain length exceeds %d; assuming there's a loop\n",
3197 FS_STATE_H_MAX_UUID_HASH_CHAIN_LEN));
3205 afsUUID_to_string(uuidp, tmp, sizeof(tmp));
3206 if (state->mode == FS_STATE_LOAD_MODE) {
3207 ViceLog(0, ("h_stateVerifyUuidHash: error: uuid %s not found in hash\n", tmp));
3211 ViceLog(0, ("h_stateVerifyUuidHash: warning: uuid %s not found in hash\n", tmp));
3212 state->flags.warnings_generated = 1;
3220 /* create the host state header structure */
3222 h_stateFillHeader(struct host_state_header * hdr)
3224 hdr->stamp.magic = HOST_STATE_MAGIC;
3225 hdr->stamp.version = HOST_STATE_VERSION;
3229 /* check the contents of the host state header structure */
3231 h_stateCheckHeader(struct host_state_header * hdr)
3235 if (hdr->stamp.magic != HOST_STATE_MAGIC) {
3236 ViceLog(0, ("check_host_state_header: invalid state header\n"));
3239 else if (hdr->stamp.version != HOST_STATE_VERSION) {
3240 ViceLog(0, ("check_host_state_header: unknown version number\n"));
3246 /* allocate the host id mapping table */
3248 h_stateAllocMap(struct fs_dump_state * state)
3250 state->h_map.len = state->h_hdr->index_max + 1;
3251 state->h_map.entries = (struct idx_map_entry_t *)
3252 calloc(state->h_map.len, sizeof(struct idx_map_entry_t));
3253 return (state->h_map.entries != NULL) ? 0 : 1;
3256 /* function called by h_Enumerate to save a host to disk */
3258 h_stateSaveHost(struct host * host, void* rock)
3260 struct fs_dump_state *state = (struct fs_dump_state *) rock;
3261 int if_len=0, hcps_len=0;
3262 struct hostDiskEntry hdsk;
3263 struct host_state_entry_header hdr;
3264 struct Interface * ifp = NULL;
3265 afs_int32 * hcps = NULL;
3266 struct iovec iov[4];
3269 if (h_isBusy_r(host)) {
3271 ViceLog(1, ("Not saving host %s:%d to disk; host appears busy\n",
3272 afs_inet_ntoa_r(host->host, hoststr), (int)ntohs(host->port)));
3273 /* Make sure we don't try to save callbacks to disk for this host, or
3274 * we'll get confused on restore */
3275 DeleteAllCallBacks_r(host, 1);
3279 memset(&hdr, 0, sizeof(hdr));
3281 if (state->h_hdr->index_max < host->index) {
3282 state->h_hdr->index_max = host->index;
3285 h_hostToDiskEntry_r(host, &hdsk);
3286 if (host->interface) {
3287 if_len = sizeof(struct Interface) +
3288 ((host->interface->numberOfInterfaces-1) * sizeof(struct AddrPort));
3289 ifp = (struct Interface *) malloc(if_len);
3290 osi_Assert(ifp != NULL);
3291 memcpy(ifp, host->interface, if_len);
3292 hdr.interfaces = host->interface->numberOfInterfaces;
3293 iov[iovcnt].iov_base = (char *) ifp;
3294 iov[iovcnt].iov_len = if_len;
3297 if (host->hcps.prlist_val) {
3298 hdr.hcps = host->hcps.prlist_len;
3299 hcps_len = hdr.hcps * sizeof(afs_int32);
3300 hcps = (afs_int32 *) malloc(hcps_len);
3301 osi_Assert(hcps != NULL);
3302 memcpy(hcps, host->hcps.prlist_val, hcps_len);
3303 iov[iovcnt].iov_base = (char *) hcps;
3304 iov[iovcnt].iov_len = hcps_len;
3308 if (hdsk.index > state->h_hdr->index_max)
3309 state->h_hdr->index_max = hdsk.index;
3311 hdr.len = sizeof(struct host_state_entry_header) +
3312 sizeof(struct hostDiskEntry) + if_len + hcps_len;
3313 hdr.magic = HOST_STATE_ENTRY_MAGIC;
3315 iov[0].iov_base = (char *) &hdr;
3316 iov[0].iov_len = sizeof(hdr);
3317 iov[1].iov_base = (char *) &hdsk;
3318 iov[1].iov_len = sizeof(struct hostDiskEntry);
3320 if (fs_stateWriteV(state, iov, iovcnt)) {
3321 ViceLog(0, ("h_stateSaveHost: failed to save host %d", host->index));
3325 fs_stateIncEOF(state, hdr.len);
3327 state->h_hdr->records++;
3334 return H_ENUMERATE_BAIL(0);
3339 /* restores a host from disk */
3341 h_stateRestoreHost(struct fs_dump_state * state)
3343 int ifp_len=0, hcps_len=0, bail=0;
3344 struct host_state_entry_header hdr;
3345 struct hostDiskEntry hdsk;
3346 struct host *host = NULL;
3347 struct Interface *ifp = NULL;
3348 afs_int32 * hcps = NULL;
3349 struct iovec iov[3];
3352 if (fs_stateRead(state, &hdr, sizeof(hdr))) {
3353 ViceLog(0, ("h_stateRestoreHost: failed to read host entry header from dump file '%s'\n",
3359 if (hdr.magic != HOST_STATE_ENTRY_MAGIC) {
3360 ViceLog(0, ("h_stateRestoreHost: fileserver state dump file '%s' is corrupt.\n",
3366 iov[0].iov_base = (char *) &hdsk;
3367 iov[0].iov_len = sizeof(struct hostDiskEntry);
3369 if (hdr.interfaces) {
3370 ifp_len = sizeof(struct Interface) +
3371 ((hdr.interfaces-1) * sizeof(struct AddrPort));
3372 ifp = (struct Interface *) malloc(ifp_len);
3373 osi_Assert(ifp != NULL);
3374 iov[iovcnt].iov_base = (char *) ifp;
3375 iov[iovcnt].iov_len = ifp_len;
3379 hcps_len = hdr.hcps * sizeof(afs_int32);
3380 hcps = (afs_int32 *) malloc(hcps_len);
3381 osi_Assert(hcps != NULL);
3382 iov[iovcnt].iov_base = (char *) hcps;
3383 iov[iovcnt].iov_len = hcps_len;
3387 if ((ifp_len + hcps_len + sizeof(hdsk) + sizeof(hdr)) != hdr.len) {
3388 ViceLog(0, ("h_stateRestoreHost: host entry header length fields are inconsistent\n"));
3393 if (fs_stateReadV(state, iov, iovcnt)) {
3394 ViceLog(0, ("h_stateRestoreHost: failed to read host entry\n"));
3399 if (!hdr.hcps && hdsk.hcps_valid) {
3400 /* valid, zero-length host cps ; does this ever happen? */
3401 hcps = (afs_int32 *) malloc(sizeof(afs_int32));
3402 osi_Assert(hcps != NULL);
3405 if ((hdsk.hostFlags & HWHO_INPROGRESS) || !(hdsk.hostFlags & ALTADDR)) {
3407 ViceLog(0, ("h_stateRestoreHost: skipping host %s:%d due to invalid flags 0x%x\n",
3408 afs_inet_ntoa_r(hdsk.host, hoststr), (int)ntohs(hdsk.port),
3409 (unsigned)hdsk.hostFlags));
3411 state->h_map.entries[hdsk.index].valid = FS_STATE_IDX_SKIPPED;
3415 /* for restoring state, we better be able to get a host! */
3417 osi_Assert(host != NULL);
3420 host->interface = ifp;
3423 host->hcps.prlist_val = hcps;
3424 host->hcps.prlist_len = hdr.hcps;
3427 h_diskEntryToHost_r(&hdsk, host);
3428 h_SetupCallbackConn_r(host);
3430 h_AddHostToAddrHashTable_r(host->host, host->port, host);
3433 for (i = ifp->numberOfInterfaces-1; i >= 0; i--) {
3434 if (ifp->interface[i].valid &&
3435 !(ifp->interface[i].addr == host->host &&
3436 ifp->interface[i].port == host->port)) {
3437 h_AddHostToAddrHashTable_r(ifp->interface[i].addr,
3438 ifp->interface[i].port,
3442 h_AddHostToUuidHashTable_r(&ifp->uuid, host);
3444 h_InsertList_r(host);
3446 /* setup host id map entry */
3447 state->h_map.entries[hdsk.index].valid = FS_STATE_IDX_VALID;
3448 state->h_map.entries[hdsk.index].old_idx = hdsk.index;
3449 state->h_map.entries[hdsk.index].new_idx = host->index;
3461 /* serialize a host structure to disk */
3463 h_hostToDiskEntry_r(struct host * in, struct hostDiskEntry * out)
3465 out->host = in->host;
3466 out->port = in->port;
3467 out->hostFlags = in->hostFlags;
3468 out->Console = in->Console;
3469 out->hcpsfailed = in->hcpsfailed;
3470 out->LastCall = in->LastCall;
3471 out->ActiveCall = in->ActiveCall;
3472 out->cpsCall = in->cpsCall;
3473 out->cblist = in->cblist;
3474 out->InSameNetwork = in->InSameNetwork;
3476 /* special fields we save, but are not memcpy'd back on restore */
3477 out->index = in->index;
3478 out->hcps_len = in->hcps.prlist_len;
3479 out->hcps_valid = (in->hcps.prlist_val == NULL) ? 0 : 1;
3482 /* restore a host structure from disk */
3484 h_diskEntryToHost_r(struct hostDiskEntry * in, struct host * out)
3486 out->host = in->host;
3487 out->port = in->port;
3488 out->hostFlags = in->hostFlags;
3489 out->Console = in->Console;
3490 out->hcpsfailed = in->hcpsfailed;
3491 out->LastCall = in->LastCall;
3492 out->ActiveCall = in->ActiveCall;
3493 out->cpsCall = in->cpsCall;
3494 out->cblist = in->cblist;
3495 out->InSameNetwork = in->InSameNetwork;
3498 /* index translation routines */
3500 h_OldToNew(struct fs_dump_state * state, afs_uint32 old, afs_uint32 * new)
3504 /* hosts use a zero-based index, so old==0 is valid */
3506 if (old >= state->h_map.len) {
3507 ViceLog(0, ("h_OldToNew: index %d is out of range\n", old));
3509 } else if (state->h_map.entries[old].valid != FS_STATE_IDX_VALID ||
3510 state->h_map.entries[old].old_idx != old) { /* sanity check */
3511 ViceLog(0, ("h_OldToNew: index %d points to an invalid host record\n", old));
3514 *new = state->h_map.entries[old].new_idx;
3519 #endif /* AFS_DEMAND_ATTACH_FS */
3523 * This counts the number of workstations, the number of active workstations,
3524 * and the number of workstations declared "down" (i.e. not heard from
3525 * recently). An active workstation has received a call since the cutoff
3526 * time argument passed.
3529 h_GetWorkStats(int *nump, int *activep, int *delp, afs_int32 cutofftime)
3532 int num = 0, active = 0, del = 0;
3536 for (count = 0, host = hostList; host && count < hostCount; host = host->next, count++) {
3537 if (!(host->hostFlags & HOSTDELETED)) {
3539 if (host->ActiveCall > cutofftime)
3541 if (host->hostFlags & VENUSDOWN)
3545 if (count != hostCount) {
3546 ViceLog(0, ("h_GetWorkStats found %d of %d hosts\n", count, hostCount));
3547 } else if (host != NULL) {
3548 ViceLog(0, ("h_GetWorkStats found more than %d hosts\n", hostCount));
3549 ShutDownAndCore(PANIC);
3559 } /*h_GetWorkStats */
3562 h_GetWorkStats64(afs_uint64 *nump, afs_uint64 *activep, afs_uint64 *delp,
3563 afs_int32 cutofftime)
3565 int num, active, del;
3566 h_GetWorkStats(&num, &active, &del, cutofftime);
3575 /*------------------------------------------------------------------------
3576 * PRIVATE h_ClassifyAddress
3579 * Given a target IP address and a candidate IP address (both
3580 * in host byte order), classify the candidate into one of three
3581 * buckets in relation to the target by bumping the counters passed
3585 * a_targetAddr : Target address.
3586 * a_candAddr : Candidate address.
3587 * a_sameNetOrSubnetP : Ptr to counter to bump when the two
3588 * addresses are either in the same network
3589 * or the same subnet.
3590 * a_diffSubnetP : ...when the candidate is in a different
3592 * a_diffNetworkP : ...when the candidate is in a different
3599 * The target and candidate addresses are both in host byte
3600 * order, NOT network byte order, when passed in.
3604 *------------------------------------------------------------------------*/
3607 h_ClassifyAddress(afs_uint32 a_targetAddr, afs_uint32 a_candAddr,
3608 afs_int32 * a_sameNetOrSubnetP, afs_int32 * a_diffSubnetP,
3609 afs_int32 * a_diffNetworkP)
3610 { /*h_ClassifyAddress */
3612 afs_uint32 targetNet;
3613 afs_uint32 targetSubnet;
3615 afs_uint32 candSubnet;
3618 * Put bad values into the subnet info to start with.
3620 targetSubnet = (afs_uint32) 0;
3621 candSubnet = (afs_uint32) 0;
3624 * Pull out the network and subnetwork numbers from the target
3625 * and candidate addresses. We can short-circuit this whole
3626 * affair if the target and candidate addresses are not of the
3629 if (IN_CLASSA(a_targetAddr)) {
3630 if (!(IN_CLASSA(a_candAddr))) {
3631 (*a_diffNetworkP)++;
3634 targetNet = a_targetAddr & IN_CLASSA_NET;
3635 candNet = a_candAddr & IN_CLASSA_NET;
3636 if (IN_SUBNETA(a_targetAddr))
3637 targetSubnet = a_targetAddr & IN_CLASSA_SUBNET;
3638 if (IN_SUBNETA(a_candAddr))
3639 candSubnet = a_candAddr & IN_CLASSA_SUBNET;
3640 } else if (IN_CLASSB(a_targetAddr)) {
3641 if (!(IN_CLASSB(a_candAddr))) {
3642 (*a_diffNetworkP)++;
3645 targetNet = a_targetAddr & IN_CLASSB_NET;
3646 candNet = a_candAddr & IN_CLASSB_NET;
3647 if (IN_SUBNETB(a_targetAddr))
3648 targetSubnet = a_targetAddr & IN_CLASSB_SUBNET;
3649 if (IN_SUBNETB(a_candAddr))
3650 candSubnet = a_candAddr & IN_CLASSB_SUBNET;
3651 } /*Class B target */
3652 else if (IN_CLASSC(a_targetAddr)) {
3653 if (!(IN_CLASSC(a_candAddr))) {
3654 (*a_diffNetworkP)++;
3657 targetNet = a_targetAddr & IN_CLASSC_NET;
3658 candNet = a_candAddr & IN_CLASSC_NET;
3661 * Note that class C addresses can't have subnets,
3662 * so we leave the defaults untouched.
3664 } /*Class C target */
3666 targetNet = a_targetAddr;
3667 candNet = a_candAddr;
3668 } /*Class D address */
3671 * Now, simply compare the extracted net and subnet values for
3672 * the two addresses (which at this point are known to be of the
3675 if (targetNet == candNet) {
3676 if (targetSubnet == candSubnet)
3677 (*a_sameNetOrSubnetP)++;
3681 (*a_diffNetworkP)++;
3683 } /*h_ClassifyAddress */
3686 /*------------------------------------------------------------------------
3687 * EXPORTED h_GetHostNetStats
3690 * Iterate through the host table, and classify each (non-deleted)
3691 * host entry into ``proximity'' categories (same net or subnet,
3692 * different subnet, different network).
3695 * a_numHostsP : Set to total number of (non-deleted) hosts.
3696 * a_sameNetOrSubnetP : Set to # hosts on same net/subnet as server.
3697 * a_diffSubnetP : Set to # hosts on diff subnet as server.
3698 * a_diffNetworkP : Set to # hosts on diff network as server.
3704 * We only count non-deleted hosts. The storage pointed to by our
3705 * parameters is zeroed upon entry.
3709 *------------------------------------------------------------------------*/
3712 h_GetHostNetStats(afs_int32 * a_numHostsP, afs_int32 * a_sameNetOrSubnetP,
3713 afs_int32 * a_diffSubnetP, afs_int32 * a_diffNetworkP)
3714 { /*h_GetHostNetStats */
3716 struct host *hostP; /*Ptr to current host entry */
3717 afs_uint32 currAddr_HBO; /*Curr host addr, host byte order */
3721 * Clear out the storage pointed to by our parameters.
3723 *a_numHostsP = (afs_int32) 0;
3724 *a_sameNetOrSubnetP = (afs_int32) 0;
3725 *a_diffSubnetP = (afs_int32) 0;
3726 *a_diffNetworkP = (afs_int32) 0;
3729 for (count = 0, hostP = hostList; hostP && count < hostCount; hostP = hostP->next, count++) {
3730 if (!(hostP->hostFlags & HOSTDELETED)) {
3732 * Bump the number of undeleted host entries found.
3733 * In classifying the current entry's address, make
3734 * sure to first convert to host byte order.
3737 currAddr_HBO = (afs_uint32) ntohl(hostP->host);
3738 h_ClassifyAddress(FS_HostAddr_HBO, currAddr_HBO,
3739 a_sameNetOrSubnetP, a_diffSubnetP,
3741 } /*Only look at non-deleted hosts */
3742 } /*For each host record hashed to this index */
3743 if (count != hostCount) {
3744 ViceLog(0, ("h_GetHostNetStats found %d of %d hosts\n", count, hostCount));
3745 } else if (hostP != NULL) {
3746 ViceLog(0, ("h_GetHostNetStats found more than %d hosts\n", hostCount));
3747 ShutDownAndCore(PANIC);
3750 } /*h_GetHostNetStats */
3752 static afs_uint32 checktime;
3753 static afs_uint32 clientdeletetime;
3754 static struct AFSFid zerofid;
3758 * XXXX: This routine could use Multi-Rx to avoid serializing the timeouts.
3759 * Since it can serialize them, and pile up, it should be a separate LWP
3760 * from other events.
3764 CheckHost(struct host *host, int flags, void *rock)
3766 struct client *client;
3767 struct rx_connection *cb_conn = NULL;
3770 #ifdef AFS_DEMAND_ATTACH_FS
3771 /* kill the checkhost lwp ASAP during shutdown */
3773 if (fs_state.mode == FS_MODE_SHUTDOWN) {
3775 return H_ENUMERATE_BAIL(flags);
3780 /* Host is held by h_Enumerate */
3782 for (client = host->FirstClient; client; client = client->next) {
3783 if (client->refCount == 0 && client->LastCall < clientdeletetime) {
3784 client->deleted = 1;
3785 host->hostFlags |= CLIENTDELETED;
3788 if (host->LastCall < checktime) {
3790 if (!(host->hostFlags & HOSTDELETED)) {
3791 host->hostFlags |= HWHO_INPROGRESS;
3792 cb_conn = host->callback_rxcon;
3793 rx_GetConnection(cb_conn);
3794 if (host->LastCall < clientdeletetime) {
3795 host->hostFlags |= HOSTDELETED;
3796 if (!(host->hostFlags & VENUSDOWN)) {
3797 host->hostFlags &= ~ALTADDR; /* alternate address invalid */
3798 if (host->interface) {
3801 RXAFSCB_InitCallBackState3(cb_conn,
3807 RXAFSCB_InitCallBackState(cb_conn);
3810 host->hostFlags |= ALTADDR; /* alternate addresses valid */
3813 (void)afs_inet_ntoa_r(host->host, hoststr);
3815 ("CB: RCallBackConnectBack (host.c) failed for host %s:%d\n",
3816 hoststr, ntohs(host->port)));
3817 host->hostFlags |= VENUSDOWN;
3819 /* Note: it's safe to delete hosts even if they have call
3820 * back state, because break delayed callbacks (called when a
3821 * message is received from the workstation) will always send a
3822 * break all call backs to the workstation if there is no
3827 if (!(host->hostFlags & VENUSDOWN) && host->cblist) {
3829 (void)afs_inet_ntoa_r(host->host, hoststr);
3830 if (host->interface) {
3831 afsUUID uuid = host->interface->uuid;
3833 code = RXAFSCB_ProbeUuid(cb_conn, &uuid);
3836 if (MultiProbeAlternateAddress_r(host)) {
3837 ViceLog(0,("CheckHost: Probing all interfaces of host %s:%d failed, code %d\n",
3838 hoststr, ntohs(host->port), code));
3839 host->hostFlags |= VENUSDOWN;
3844 code = RXAFSCB_Probe(cb_conn);
3848 ("CheckHost: Probe failed for host %s:%d, code %d\n",
3849 hoststr, ntohs(host->port), code));
3850 host->hostFlags |= VENUSDOWN;
3856 rx_PutConnection(cb_conn);
3859 host->hostFlags &= ~HWHO_INPROGRESS;
3870 CheckHost_r(struct host *host, void *dummy)
3872 struct client *client;
3873 struct rx_connection *cb_conn = NULL;
3876 #ifdef AFS_DEMAND_ATTACH_FS
3877 /* kill the checkhost lwp ASAP during shutdown */
3879 if (fs_state.mode == FS_MODE_SHUTDOWN) {
3881 return H_ENUMERATE_BAIL(0);
3886 /* Host is held by h_Enumerate_r */
3887 for (client = host->FirstClient; client; client = client->next) {
3888 if (client->refCount == 0 && client->LastCall < clientdeletetime) {
3889 client->deleted = 1;
3890 host->hostFlags |= CLIENTDELETED;
3893 if (host->LastCall < checktime) {
3895 if (!(host->hostFlags & HOSTDELETED)) {
3896 host->hostFlags |= HWHO_INPROGRESS;
3897 cb_conn = host->callback_rxcon;
3898 rx_GetConnection(cb_conn);
3899 if (host->LastCall < clientdeletetime) {
3900 host->hostFlags |= HOSTDELETED;
3901 if (!(host->hostFlags & VENUSDOWN)) {
3902 host->hostFlags &= ~ALTADDR; /* alternate address invalid */
3903 if (host->interface) {
3906 RXAFSCB_InitCallBackState3(cb_conn,
3912 RXAFSCB_InitCallBackState(cb_conn);
3915 host->hostFlags |= ALTADDR; /* alternate addresses valid */
3918 (void)afs_inet_ntoa_r(host->host, hoststr);
3920 ("CB: RCallBackConnectBack (host.c) failed for host %s:%d\n",
3921 hoststr, ntohs(host->port)));
3922 host->hostFlags |= VENUSDOWN;
3924 /* Note: it's safe to delete hosts even if they have call
3925 * back state, because break delayed callbacks (called when a
3926 * message is received from the workstation) will always send a
3927 * break all call backs to the workstation if there is no
3932 if (!(host->hostFlags & VENUSDOWN) && host->cblist) {
3934 (void)afs_inet_ntoa_r(host->host, hoststr);
3935 if (host->interface) {
3936 afsUUID uuid = host->interface->uuid;
3938 code = RXAFSCB_ProbeUuid(cb_conn, &uuid);
3941 if (MultiProbeAlternateAddress_r(host)) {
3942 ViceLog(0,("CheckHost_r: Probing all interfaces of host %s:%d failed, code %d\n",
3943 hoststr, ntohs(host->port), code));
3944 host->hostFlags |= VENUSDOWN;
3949 code = RXAFSCB_Probe(cb_conn);
3953 ("CheckHost_r: Probe failed for host %s:%d, code %d\n",
3954 hoststr, ntohs(host->port), code));
3955 host->hostFlags |= VENUSDOWN;
3961 rx_PutConnection(cb_conn);
3964 host->hostFlags &= ~HWHO_INPROGRESS;
3974 * Set VenusDown for any hosts that have not had a call in 15 minutes and
3975 * don't respond to a probe. Note that VenusDown can only be cleared if
3976 * a message is received from the host (see ServerLWP in file.c).
3977 * Delete hosts that have not had any calls in 1 hour, clients that
3978 * have not had any calls in 15 minutes.
3980 * This routine is called roughly every 5 minutes.
3985 afs_uint32 now = FT_ApproxTime();
3987 memset(&zerofid, 0, sizeof(zerofid));
3989 * Send a probe to the workstation if it hasn't been heard from in
3992 checktime = now - 15 * 60;
3993 clientdeletetime = now - 120 * 60; /* 2 hours ago */
3996 h_Enumerate_r(CheckHost_r, hostList, NULL);
4001 * This is called with host locked and held. At this point, the
4002 * hostAddrHashTable has an entry for the primary addr/port inserted
4003 * by h_Alloc_r(). No other interfaces should be considered valid.
4005 * The addresses in the interfaceAddr list are in host byte order.
4008 initInterfaceAddr_r(struct host *host, struct interfaceAddr *interf)
4015 struct Interface *interface;
4018 afs_uint16 port7001 = htons(7001);
4023 number = interf->numberOfInterfaces;
4024 myAddr = host->host; /* current interface address */
4025 myPort = host->port; /* current port */
4028 ("initInterfaceAddr : host %s:%d numAddr %d\n",
4029 afs_inet_ntoa_r(myAddr, hoststr), ntohs(myPort), number));
4031 /* validation checks */
4032 if (number < 0 || number > AFS_MAX_INTERFACE_ADDR) {
4034 ("Invalid number of alternate addresses is %d\n", number));
4039 * The client's notion of its own IP addresses is not reliable.
4041 * 1. The client list might contain private address ranges which
4042 * are likely to be re-used by many clients allocated addresses
4045 * 2. The client list will not include any public addresses that
4046 * are hidden by a NAT.
4048 * 3. Private address ranges that are exposed to the server will
4049 * be obtained from the rx connections that use them.
4051 * 4. Lists provided by the client are not necessarily truthful.
4052 * Many existing clients (UNIX) do not refresh the IP address
4053 * list as the actual assigned addresses change. The end result
4054 * is that they report the initial address list for the lifetime
4055 * of the process. In other words, a client can report addresses
4056 * that they are in fact not using. Adding these addresses to
4057 * the host interface list without verification is not only
4058 * pointless, it is downright dangerous.
4060 * We therefore do not add alternate addresses to the addr hash table.
4061 * We only use them for multi-rx callback breaks.
4065 * Convert IP addresses to network byte order, and remove
4066 * duplicate and loopback IP addresses from the interface list, and
4067 * determine whether or not the incoming addr/port is
4068 * listed. Note that if the address matches it is not
4069 * truly a match because the port number for the entries
4070 * in the interface list are port 7001 and the port number
4071 * for this connection might not be 7001.
4073 for (i = 0, count = 0, found = 0; i < number; i++) {
4074 if (rx_IsLoopbackAddr(interf->addr_in[i])) {
4077 interf->addr_in[i] = htonl(interf->addr_in[i]);
4078 for (j = 0; j < count; j++) {
4079 if (interf->addr_in[j] == interf->addr_in[i])
4083 interf->addr_in[count] = interf->addr_in[i];
4084 if (interf->addr_in[count] == myAddr &&
4092 * Allocate and initialize an interface structure for this host.
4095 interface = (struct Interface *)
4096 malloc(sizeof(struct Interface) +
4097 (sizeof(struct AddrPort) * (count - 1)));
4099 ViceLogThenPanic(0, ("Failed malloc in initInterfaceAddr_r 1\n"));
4101 interface->numberOfInterfaces = count;
4103 interface = (struct Interface *)
4104 malloc(sizeof(struct Interface) + (sizeof(struct AddrPort) * count));
4106 ViceLogThenPanic(0, ("Failed malloc in initInterfaceAddr_r 2\n"));
4108 interface->numberOfInterfaces = count + 1;
4109 interface->interface[count].addr = myAddr;
4110 interface->interface[count].port = myPort;
4111 interface->interface[count].valid = 1;
4114 for (i = 0; i < count; i++) {
4116 interface->interface[i].addr = interf->addr_in[i];
4117 /* We store the port as 7001 because the addresses reported by
4118 * TellMeAboutYourself and WhoAreYou RPCs are only valid if they
4119 * are coming from fully connected hosts (no NAT/PATs)
4121 interface->interface[i].port = port7001;
4122 interface->interface[i].valid =
4123 (interf->addr_in[i] == myAddr && port7001 == myPort) ? 1 : 0;
4126 interface->uuid = interf->uuid;
4128 osi_Assert(!host->interface);
4129 host->interface = interface;
4131 if (LogLevel >= 125) {
4132 afsUUID_to_string(&interface->uuid, uuidstr, 127);
4134 ViceLog(125, ("--- uuid %s\n", uuidstr));
4135 for (i = 0; i < host->interface->numberOfInterfaces; i++) {
4136 ViceLog(125, ("--- alt address %s:%d\n",
4137 afs_inet_ntoa_r(host->interface->interface[i].addr, hoststr),
4138 ntohs(host->interface->interface[i].port)));
4145 /* deleted a HashChain structure for this address and host */
4146 /* returns 1 on success */
4148 h_DeleteHostFromAddrHashTable_r(afs_uint32 addr, afs_uint16 port,
4152 struct h_AddrHashChain **hp, *th;
4154 if (addr == 0 && port == 0)
4157 for (hp = &hostAddrHashTable[h_HashIndex(addr)]; (th = *hp);
4159 osi_Assert(th->hostPtr);
4160 if (th->hostPtr == host && th->addr == addr && th->port == port) {
4161 ViceLog(125, ("h_DeleteHostFromAddrHashTable_r: host %" AFS_PTR_FMT " (%s:%d)\n",
4162 host, afs_inet_ntoa_r(host->host, hoststr),
4163 ntohs(host->port)));
4170 ("h_DeleteHostFromAddrHashTable_r: host %" AFS_PTR_FMT " (%s:%d) not found\n",
4171 host, afs_inet_ntoa_r(host->host, hoststr),
4172 ntohs(host->port)));
4178 ** prints out all alternate interface address for the host. The 'level'
4179 ** parameter indicates what level of debugging sets this output
4182 printInterfaceAddr(struct host *host, int level)
4187 if (host->interface) {
4188 /* check alternate addresses */
4189 number = host->interface->numberOfInterfaces;
4191 ViceLog(level, ("no-addresses "));
4193 for (i = 0; i < number; i++)
4194 ViceLog(level, ("%s:%d ", afs_inet_ntoa_r(host->interface->interface[i].addr, hoststr),
4195 ntohs(host->interface->interface[i].port)));
4198 ViceLog(level, ("\n"));