void
LockAndInstallUVolumeEntry(struct volume *av, struct uvldbentry *ve, int acell,
struct cell *tcell, struct vrequest *areq)
{
struct server *ts;
struct afs_conn *tconn;
struct cell *cellp;
int i, j;
afs_uint32 serverid;
afs_int32 mask;
int k;
char type = 0;
struct server *serverHost[AFS_MAXHOSTS];
AFS_STATCNT(InstallVolumeEntry);
memset(serverHost, 0, sizeof(serverHost));
/* Determine type of volume we want */
if ((ve->flags & VLF_RWEXISTS) && (av->volume == ve->volumeId[RWVOL])) {
mask = VLSF_RWVOL;
} else if ((ve->flags & VLF_ROEXISTS)
&& av->volume == ve->volumeId[ROVOL]) {
mask = VLSF_ROVOL;
type |= VRO;
} else if ((ve->flags & VLF_BACKEXISTS)
&& (av->volume == ve->volumeId[BACKVOL])) {
/* backup always is on the same volume as parent */
mask = VLSF_RWVOL;
type |= (VRO | VBackup);
} else {
mask = 0; /* Can't find volume in vldb entry */
}
cellp = afs_GetCell(acell, 0);
/* Gather the list of servers the VLDB says the volume is on
* and initialize the ve->serverHost[] array. If a server struct
* is not found, then get the list of addresses for the
* server, VL_GetAddrsU(), and create a server struct, afs_GetServer().
*/
for (i = 0, j = 0; i < ve->nServers; i++) {
if (((ve->serverFlags[i] & mask) == 0)
|| (ve->serverFlags[i] & VLSF_DONTUSE)) {
continue; /* wrong volume don't use this volume */
}
if (!(ve->serverFlags[i] & VLSERVER_FLAG_UUID)) {
/* The server has no uuid */
serverid = htonl(ve->serverNumber[i].time_low);
ts = afs_GetServer(&serverid, 1, acell, cellp->fsport,
WRITE_LOCK, (afsUUID *) 0, 0, av);
} else {
ts = afs_FindServer(0, cellp->fsport, &ve->serverNumber[i], 0);
if (ts && (ts->sr_addr_uniquifier == ve->serverUnique[i])
&& ts->addr) {
/* uuid, uniquifier, and portal are the same */
} else {
afs_uint32 *addrp, code;
afs_int32 nentries, unique;
bulkaddrs addrs;
ListAddrByAttributes attrs;
afsUUID uuid;
struct rx_connection *rxconn;
memset(&attrs, 0, sizeof(attrs));
attrs.Mask = VLADDR_UUID;
attrs.uuid = ve->serverNumber[i];
memset(&uuid, 0, sizeof(uuid));
memset(&addrs, 0, sizeof(addrs));
do {
tconn =
afs_ConnByMHosts(tcell->cellHosts, tcell->vlport,
tcell->cellNum, areq, SHARED_LOCK,
0, &rxconn);
if (tconn) {
RX_AFS_GUNLOCK();
code =
VL_GetAddrsU(rxconn, &attrs, &uuid, &unique,
&nentries, &addrs);
RX_AFS_GLOCK();
} else {
code = -1;
}
/* Handle corrupt VLDB (defect 7393) */
if (code == 0 && nentries == 0)
code = VL_NOENT;
} while (afs_Analyze
(tconn, rxconn, code, NULL, areq, -1, SHARED_LOCK, tcell));
if (code) {
/* Better handing of such failures; for now we'll simply retry this call */
areq->volumeError = 1;
return;
}
addrp = addrs.bulkaddrs_val;
for (k = 0; k < nentries; k++) {
addrp[k] = htonl(addrp[k]);
}
ts = afs_GetServer(addrp, nentries, acell,
cellp->fsport, WRITE_LOCK,
&ve->serverNumber[i],
ve->serverUnique[i], av);
xdr_free((xdrproc_t) xdr_bulkaddrs, &addrs);
}
#if defined(AFS_LINUX26_ENV) && !defined(UKERNEL)
if (afs_compare_serveruuid(&ve->serverNumber[i]))
av->states |= VPartVisible;
#endif
}
serverHost[j] = ts;
/* The cell field could be 0 if the server entry was created
* first with the 'fs setserverprefs' call which doesn't set
* the cell field. Thus if the afs_GetServer call above
* follows later on it will find the server entry thus it will
* simply return without setting any fields, so we set the
* field ourselves below.
*/
if (!ts->cell)
ts->cell = cellp;
afs_PutServer(ts, WRITE_LOCK);
j++;
}
ObtainWriteLock(&av->lock, 111);
memcpy(av->serverHost, serverHost, sizeof(serverHost));
/* from above */
av->states |= type;
/* fill in volume types */
av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
if (ve->flags & VLF_DFSFILESET)
av->states |= VForeign;
afs_SortServers(av->serverHost, AFS_MAXHOSTS);
} /*InstallVolumeEntry */
void
InstallUVolumeEntry(struct volume *av, struct uvldbentry *ve, int acell,
struct cell *tcell, struct vrequest *areq)
{
register struct server *ts;
struct afs_conn *tconn;
struct cell *cellp;
register int i, j;
afs_uint32 serverid;
afs_int32 mask;
int k;
AFS_STATCNT(InstallVolumeEntry);
/* Determine type of volume we want */
if ((ve->flags & VLF_RWEXISTS) && (av->volume == ve->volumeId[RWVOL])) {
mask = VLSF_RWVOL;
} else if ((ve->flags & VLF_ROEXISTS)
&& av->volume == ve->volumeId[ROVOL]) {
mask = VLSF_ROVOL;
av->states |= VRO;
} else if ((ve->flags & VLF_BACKEXISTS)
&& (av->volume == ve->volumeId[BACKVOL])) {
/* backup always is on the same volume as parent */
mask = VLSF_RWVOL;
av->states |= (VRO | VBackup);
} else {
mask = 0; /* Can't find volume in vldb entry */
}
/* fill in volume types */
av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
if (ve->flags & VLF_DFSFILESET)
av->states |= VForeign;
cellp = afs_GetCell(acell, 0);
/* This volume, av, is locked. Zero out the serverHosts[] array
* so that if afs_GetServer() decides to replace the server
* struct, we don't deadlock trying to afs_ResetVolumeInfo()
* this volume.
*/
for (j = 0; j < MAXHOSTS; j++) {
av->serverHost[j] = 0;
}
/* Gather the list of servers the VLDB says the volume is on
* and initialize the ve->serverHost[] array. If a server struct
* is not found, then get the list of addresses for the
* server, VL_GetAddrsU(), and create a server struct, afs_GetServer().
*/
for (i = 0, j = 0; i < ve->nServers; i++) {
if (((ve->serverFlags[i] & mask) == 0)
|| (ve->serverFlags[i] & VLSF_DONTUSE)) {
continue; /* wrong volume don't use this volume */
}
if (!(ve->serverFlags[i] & VLSERVER_FLAG_UUID)) {
/* The server has no uuid */
serverid = htonl(ve->serverNumber[i].time_low);
ts = afs_GetServer(&serverid, 1, acell, cellp->fsport, WRITE_LOCK,
(afsUUID *) 0, 0);
} else {
ts = afs_FindServer(0, cellp->fsport, &ve->serverNumber[i], 0);
if (ts && (ts->sr_addr_uniquifier == ve->serverUnique[i])
&& ts->addr) {
/* uuid, uniquifier, and portal are the same */
} else {
afs_uint32 *addrp, nentries, code, unique;
bulkaddrs addrs;
ListAddrByAttributes attrs;
afsUUID uuid;
memset((char *)&attrs, 0, sizeof(attrs));
attrs.Mask = VLADDR_UUID;
attrs.uuid = ve->serverNumber[i];
memset((char *)&uuid, 0, sizeof(uuid));
memset((char *)&addrs, 0, sizeof(addrs));
do {
tconn =
afs_ConnByMHosts(tcell->cellHosts, tcell->vlport,
tcell->cellNum, areq, SHARED_LOCK);
if (tconn) {
RX_AFS_GUNLOCK();
code =
VL_GetAddrsU(tconn->id, &attrs, &uuid, &unique,
&nentries, &addrs);
RX_AFS_GLOCK();
} else {
code = -1;
}
/* Handle corrupt VLDB (defect 7393) */
if (code == 0 && nentries == 0)
code = VL_NOENT;
} while (afs_Analyze
(tconn, code, NULL, areq, -1, SHARED_LOCK, tcell));
if (code) {
/* Better handing of such failures; for now we'll simply retry this call */
areq->volumeError = 1;
return;
}
addrp = addrs.bulkaddrs_val;
for (k = 0; k < nentries; k++) {
addrp[k] = htonl(addrp[k]);
}
ts = afs_GetServer(addrp, nentries, acell, cellp->fsport,
WRITE_LOCK, &ve->serverNumber[i],
ve->serverUnique[i]);
afs_osi_Free(addrs.bulkaddrs_val,
addrs.bulkaddrs_len * sizeof(*addrp));
}
}
av->serverHost[j] = ts;
/* The cell field could be 0 if the server entry was created
* first with the 'fs setserverprefs' call which doesn't set
* the cell field. Thus if the afs_GetServer call above
* follows later on it will find the server entry thus it will
* simply return without setting any fields, so we set the
* field ourselves below.
*/
if (!ts->cell)
ts->cell = cellp;
afs_PutServer(ts, WRITE_LOCK);
j++;
}
afs_SortServers(av->serverHost, MAXHOSTS);
} /*InstallVolumeEntry */