int
afscp_CreateFile(const struct afscp_venusfid *dir, char *name,
struct AFSStoreStatus *sst, struct afscp_venusfid **ret)
{
int code, i, j;
struct AFSFid df = dir->fid;
struct afscp_volume *vol;
struct AFSFetchStatus dfst, fst;
struct AFSVolSync vs;
struct AFSCallBack cb;
struct AFSFid ff;
struct afscp_server *server;
struct rx_connection *c;
time_t now;
if (dir == NULL || name == NULL || sst == NULL) {
fprintf(stderr,
"afscp_CreateFile called with NULL args, cannot continue\n");
return -1;
}
vol = afscp_VolumeById(dir->cell, dir->fid.Volume);
if (vol == NULL) {
afscp_errno = ENOENT;
return -1;
}
code = ENOENT;
for (i = 0; i < vol->nservers; i++) {
server = afscp_ServerByIndex(vol->servers[i]);
if (server && server->naddrs > 0) {
for (j = 0; j < server->naddrs; j++) {
c = afscp_ServerConnection(server, j);
if (c == NULL) {
break;
}
time(&now);
code = RXAFS_CreateFile(c, &df, name, sst, &ff,
&fst, &dfst, &cb, &vs);
if (code >= 0) {
break;
}
}
}
if (code >= 0) {
break;
}
}
if (code != 0) {
_StatInvalidate(dir);
afscp_errno = code;
return -1;
}
_StatStuff(dir, &dfst);
afscp_AddCallBack(server, &ff, &fst, &cb, now);
if (ret != NULL)
*ret = afscp_MakeFid(vol->cell, ff.Volume, ff.Vnode, ff.Unique);
return 0;
}
/* question: does afs_create need to set CDirty in the adp or the avc?
* I think we can get away without it, but I'm not sure. Note that
* afs_setattr is called in here for truncation.
*/
#ifdef AFS_SGI64_ENV
int
afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs, int flags,
int amode, struct vcache **avcp, afs_ucred_t *acred)
#else /* AFS_SGI64_ENV */
int
afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs,
enum vcexcl aexcl, int amode, struct vcache **avcp,
afs_ucred_t *acred)
#endif /* AFS_SGI64_ENV */
{
afs_int32 origCBs, origZaps, finalZaps;
struct vrequest *treq = NULL;
afs_int32 code;
struct afs_conn *tc;
struct VenusFid newFid;
struct AFSStoreStatus InStatus;
struct AFSFetchStatus *OutFidStatus, *OutDirStatus;
struct AFSVolSync tsync;
struct AFSCallBack CallBack;
afs_int32 now;
struct dcache *tdc;
afs_size_t offset, len;
struct server *hostp = 0;
struct vcache *tvc;
struct volume *volp = 0;
struct afs_fakestat_state fakestate;
struct rx_connection *rxconn;
XSTATS_DECLS;
OSI_VC_CONVERT(adp);
AFS_STATCNT(afs_create);
OutFidStatus = osi_AllocSmallSpace(sizeof(struct AFSFetchStatus));
OutDirStatus = osi_AllocSmallSpace(sizeof(struct AFSFetchStatus));
memset(&InStatus, 0, sizeof(InStatus));
if ((code = afs_CreateReq(&treq, acred)))
goto done2;
afs_Trace3(afs_iclSetp, CM_TRACE_CREATE, ICL_TYPE_POINTER, adp,
ICL_TYPE_STRING, aname, ICL_TYPE_INT32, amode);
afs_InitFakeStat(&fakestate);
#ifdef AFS_SGI65_ENV
/* If avcp is passed not null, it's the old reference to this file.
* We can use this to avoid create races. For now, just decrement
* the reference count on it.
*/
if (*avcp) {
AFS_RELE(AFSTOV(*avcp));
*avcp = NULL;
}
#endif
if (strlen(aname) > AFSNAMEMAX) {
code = ENAMETOOLONG;
goto done3;
}
if (!afs_ENameOK(aname)) {
code = EINVAL;
goto done3;
}
switch (attrs->va_type) {
case VBLK:
case VCHR:
#if !defined(AFS_SUN5_ENV)
case VSOCK:
#endif
case VFIFO:
/* We don't support special devices or FIFOs */
code = EINVAL;
goto done3;
default:
;
}
AFS_DISCON_LOCK();
code = afs_EvalFakeStat(&adp, &fakestate, treq);
if (code)
goto done;
tagain:
code = afs_VerifyVCache(adp, treq);
if (code)
goto done;
/** If the volume is read-only, return error without making an RPC to the
* fileserver
*/
if (adp->f.states & CRO) {
code = EROFS;
goto done;
}
if (AFS_IS_DISCONNECTED && !AFS_IS_DISCON_RW) {
code = ENETDOWN;
goto done;
}
tdc = afs_GetDCache(adp, (afs_size_t) 0, treq, &offset, &len, 1);
ObtainWriteLock(&adp->lock, 135);
if (tdc)
ObtainSharedLock(&tdc->lock, 630);
/*
* Make sure that the data in the cache is current. We may have
* received a callback while we were waiting for the write lock.
*/
if (!(adp->f.states & CStatd)
|| (tdc && !hsame(adp->f.m.DataVersion, tdc->f.versionNo))) {
ReleaseWriteLock(&adp->lock);
if (tdc) {
ReleaseSharedLock(&tdc->lock);
afs_PutDCache(tdc);
}
goto tagain;
}
if (tdc) {
/* see if file already exists. If it does, we only set
* the size attributes (to handle O_TRUNC) */
code = afs_dir_Lookup(tdc, aname, &newFid.Fid); /* use dnlc first xxx */
if (code == 0) {
ReleaseSharedLock(&tdc->lock);
afs_PutDCache(tdc);
ReleaseWriteLock(&adp->lock);
#ifdef AFS_SGI64_ENV
if (flags & VEXCL) {
#else
if (aexcl != NONEXCL) {
#endif
code = EEXIST; /* file exists in excl mode open */
goto done;
}
/* found the file, so use it */
newFid.Cell = adp->f.fid.Cell;
newFid.Fid.Volume = adp->f.fid.Fid.Volume;
tvc = NULL;
if (newFid.Fid.Unique == 0) {
tvc = afs_LookupVCache(&newFid, treq, NULL, adp, aname);
}
if (!tvc) /* lookup failed or wasn't called */
tvc = afs_GetVCache(&newFid, treq, NULL, NULL);
if (tvc) {
/* if the thing exists, we need the right access to open it.
* we must check that here, since no other checks are
* made by the open system call */
len = attrs->va_size; /* only do the truncate */
/*
* We used to check always for READ access before; the
* problem is that we will fail if the existing file
* has mode -w-w-w, which is wrong.
*/
if ((amode & VREAD)
&& !afs_AccessOK(tvc, PRSFS_READ, treq, CHECK_MODE_BITS)) {
afs_PutVCache(tvc);
code = EACCES;
goto done;
}
#if defined(AFS_DARWIN80_ENV)
if ((amode & VWRITE) || VATTR_IS_ACTIVE(attrs, va_data_size))
#elif defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
if ((amode & VWRITE) || (attrs->va_mask & AT_SIZE))
#else
if ((amode & VWRITE) || len != 0xffffffff)
#endif
{
/* needed for write access check */
tvc->f.parent.vnode = adp->f.fid.Fid.Vnode;
tvc->f.parent.unique = adp->f.fid.Fid.Unique;
/* need write mode for these guys */
if (!afs_AccessOK
(tvc, PRSFS_WRITE, treq, CHECK_MODE_BITS)) {
afs_PutVCache(tvc);
code = EACCES;
goto done;
}
}
#if defined(AFS_DARWIN80_ENV)
if (VATTR_IS_ACTIVE(attrs, va_data_size))
#elif defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
if (attrs->va_mask & AT_SIZE)
#else
if (len != 0xffffffff)
#endif
{
if (vType(tvc) != VREG) {
afs_PutVCache(tvc);
code = EISDIR;
goto done;
}
/* do a truncate */
#if defined(AFS_DARWIN80_ENV)
VATTR_INIT(attrs);
VATTR_SET_SUPPORTED(attrs, va_data_size);
VATTR_SET_ACTIVE(attrs, va_data_size);
#elif defined(UKERNEL)
attrs->va_mask = ATTR_SIZE;
#elif defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
attrs->va_mask = AT_SIZE;
#else
VATTR_NULL(attrs);
#endif
attrs->va_size = len;
ObtainWriteLock(&tvc->lock, 136);
tvc->f.states |= CCreating;
ReleaseWriteLock(&tvc->lock);
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
#if defined(AFS_SGI64_ENV)
code =
afs_setattr(VNODE_TO_FIRST_BHV((vnode_t *) tvc),
attrs, 0, acred);
#else
code = afs_setattr(tvc, attrs, 0, acred);
#endif /* AFS_SGI64_ENV */
#else /* SUN5 || SGI */
code = afs_setattr(tvc, attrs, acred);
#endif /* SUN5 || SGI */
ObtainWriteLock(&tvc->lock, 137);
tvc->f.states &= ~CCreating;
ReleaseWriteLock(&tvc->lock);
if (code) {
afs_PutVCache(tvc);
goto done;
}
}
*avcp = tvc;
} else
code = ENOENT; /* shouldn't get here */
/* make sure vrefCount bumped only if code == 0 */
goto done;
}
}
/* if we create the file, we don't do any access checks, since
* that's how O_CREAT is supposed to work */
if (adp->f.states & CForeign) {
origCBs = afs_allCBs;
origZaps = afs_allZaps;
} else {
origCBs = afs_evenCBs; /* if changes, we don't really have a callback */
origZaps = afs_evenZaps; /* number of even numbered vnodes discarded */
}
InStatus.Mask = AFS_SETMODTIME | AFS_SETMODE | AFS_SETGROUP;
InStatus.ClientModTime = osi_Time();
InStatus.Group = (afs_int32) afs_cr_gid(acred);
if (AFS_NFSXLATORREQ(acred)) {
/*
* XXX The following is mainly used to fix a bug in the HP-UX
* nfs client where they create files with mode of 0 without
* doing any setattr later on to fix it. * XXX
*/
#if defined(AFS_AIX_ENV)
if (attrs->va_mode != -1) {
#else
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
if (attrs->va_mask & AT_MODE) {
#else
if (attrs->va_mode != ((unsigned short)-1)) {
#endif
#endif
if (!attrs->va_mode)
attrs->va_mode = 0x1b6; /* XXX default mode: rw-rw-rw XXX */
}
}
if (!AFS_IS_DISCONNECTED) {
/* If not disconnected, connect to the server.*/
InStatus.UnixModeBits = attrs->va_mode & 0xffff; /* only care about protection bits */
do {
tc = afs_Conn(&adp->f.fid, treq, SHARED_LOCK, &rxconn);
if (tc) {
hostp = tc->srvr->server; /* remember for callback processing */
now = osi_Time();
XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_CREATEFILE);
RX_AFS_GUNLOCK();
code =
RXAFS_CreateFile(rxconn, (struct AFSFid *)&adp->f.fid.Fid,
aname, &InStatus, (struct AFSFid *)
&newFid.Fid, OutFidStatus, OutDirStatus,
&CallBack, &tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
CallBack.ExpirationTime += now;
} else
code = -1;
} while (afs_Analyze
(tc, rxconn, code, &adp->f.fid, treq, AFS_STATS_FS_RPCIDX_CREATEFILE,
SHARED_LOCK, NULL));
if ((code == EEXIST || code == UAEEXIST) &&
#ifdef AFS_SGI64_ENV
!(flags & VEXCL)
#else /* AFS_SGI64_ENV */
aexcl == NONEXCL
#endif
) {
/* if we get an EEXIST in nonexcl mode, just do a lookup */
if (tdc) {
ReleaseSharedLock(&tdc->lock);
afs_PutDCache(tdc);
}
ReleaseWriteLock(&adp->lock);
#if defined(AFS_SGI64_ENV)
code = afs_lookup(VNODE_TO_FIRST_BHV((vnode_t *) adp), aname, avcp,
NULL, 0, NULL, acred);
#elif defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
code = afs_lookup(adp, aname, avcp, NULL, 0, NULL, acred);
#elif defined(UKERNEL)
code = afs_lookup(adp, aname, avcp, acred, 0);
#elif !defined(AFS_DARWIN_ENV)
code = afs_lookup(adp, aname, avcp, acred);
#endif
goto done;
}
if (code) {
if (code < 0) {
ObtainWriteLock(&afs_xcbhash, 488);
afs_DequeueCallback(adp);
adp->f.states &= ~CStatd;
ReleaseWriteLock(&afs_xcbhash);
osi_dnlc_purgedp(adp);
}
ReleaseWriteLock(&adp->lock);
if (tdc) {
ReleaseSharedLock(&tdc->lock);
afs_PutDCache(tdc);
}
goto done;
}
} else {
/* Generate a fake FID for disconnected mode. */
newFid.Cell = adp->f.fid.Cell;
newFid.Fid.Volume = adp->f.fid.Fid.Volume;
afs_GenFakeFid(&newFid, VREG, 1);
} /* if (!AFS_IS_DISCON_RW) */
/* otherwise, we should see if we can make the change to the dir locally */
if (tdc)
UpgradeSToWLock(&tdc->lock, 631);
if (AFS_IS_DISCON_RW || afs_LocalHero(adp, tdc, OutDirStatus, 1)) {
/* we can do it locally */
ObtainWriteLock(&afs_xdcache, 291);
code = afs_dir_Create(tdc, aname, &newFid.Fid);
ReleaseWriteLock(&afs_xdcache);
if (code) {
ZapDCE(tdc);
DZap(tdc);
}
}
if (tdc) {
ReleaseWriteLock(&tdc->lock);
afs_PutDCache(tdc);
}
if (AFS_IS_DISCON_RW)
adp->f.m.LinkCount++;
newFid.Cell = adp->f.fid.Cell;
newFid.Fid.Volume = adp->f.fid.Fid.Volume;
ReleaseWriteLock(&adp->lock);
volp = afs_FindVolume(&newFid, READ_LOCK);
/* New tricky optimistic callback handling algorithm for file creation works
* as follows. We create the file essentially with no locks set at all. File
* server may thus handle operations from others cache managers as well as from
* this very own cache manager that reference the file in question before
* we managed to create the cache entry. However, if anyone else changes
* any of the status information for a file, we'll see afs_evenCBs increase
* (files always have even fids). If someone on this workstation manages
* to do something to the file, they'll end up having to create a cache
* entry for the new file. Either we'll find it once we've got the afs_xvcache
* lock set, or it was also *deleted* the vnode before we got there, in which case
* we will find evenZaps has changed, too. Thus, we only assume we have the right
* status information if no callbacks or vnode removals have occurred to even
* numbered files from the time the call started until the time that we got the xvcache
* lock set. Of course, this also assumes that any call that modifies a file first
* gets a write lock on the file's vnode, but if that weren't true, the whole cache manager
* would fail, since no call would be able to update the local vnode status after modifying
* a file on a file server. */
ObtainWriteLock(&afs_xvcache, 138);
if (adp->f.states & CForeign)
finalZaps = afs_allZaps; /* do this before calling newvcache */
else
finalZaps = afs_evenZaps; /* do this before calling newvcache */
/* don't need to call RemoveVCB, since only path leaving a callback is the
* one where we pass through afs_NewVCache. Can't have queued a VCB unless
* we created and freed an entry between file creation time and here, and the
* freeing of the vnode will change evenZaps. Don't need to update the VLRU
* queue, since the find will only succeed in the event of a create race, and
* then the vcache will be at the front of the VLRU queue anyway... */
if (!(tvc = afs_FindVCache(&newFid, 0, DO_STATS))) {
tvc = afs_NewVCache(&newFid, hostp);
if (tvc) {
int finalCBs;
ObtainWriteLock(&tvc->lock, 139);
ObtainWriteLock(&afs_xcbhash, 489);
finalCBs = afs_evenCBs;
/* add the callback in */
if (adp->f.states & CForeign) {
tvc->f.states |= CForeign;
finalCBs = afs_allCBs;
}
if (origCBs == finalCBs && origZaps == finalZaps) {
tvc->f.states |= CStatd; /* we've fake entire thing, so don't stat */
tvc->f.states &= ~CBulkFetching;
if (!AFS_IS_DISCON_RW) {
tvc->cbExpires = CallBack.ExpirationTime;
afs_QueueCallback(tvc, CBHash(CallBack.ExpirationTime), volp);
}
} else {
afs_DequeueCallback(tvc);
tvc->f.states &= ~(CStatd | CUnique);
tvc->callback = 0;
if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
osi_dnlc_purgedp(tvc);
}
ReleaseWriteLock(&afs_xcbhash);
if (AFS_IS_DISCON_RW) {
afs_DisconAddDirty(tvc, VDisconCreate, 0);
afs_GenDisconStatus(adp, tvc, &newFid, attrs, treq, VREG);
} else {
afs_ProcessFS(tvc, OutFidStatus, treq);
}
tvc->f.parent.vnode = adp->f.fid.Fid.Vnode;
tvc->f.parent.unique = adp->f.fid.Fid.Unique;
#if !defined(UKERNEL)
if (volp && (volp->states & VPartVisible))
tvc->f.states |= CPartVisible;
#endif
ReleaseWriteLock(&tvc->lock);
*avcp = tvc;
code = 0;
} else
code = ENOENT;
} else {
/* otherwise cache entry already exists, someone else must
* have created it. Comments used to say: "don't need write
* lock to *clear* these flags" but we should do it anyway.
* Code used to clear stat bit and callback, but I don't see
* the point -- we didn't have a create race, somebody else just
* snuck into NewVCache before we got here, probably a racing
* lookup.
*/
*avcp = tvc;
code = 0;
}
ReleaseWriteLock(&afs_xvcache);
done:
AFS_DISCON_UNLOCK();
done3:
if (volp)
afs_PutVolume(volp, READ_LOCK);
if (code == 0) {
if (afs_mariner)
afs_AddMarinerName(aname, *avcp);
/* return the new status in vattr */
afs_CopyOutAttrs(*avcp, attrs);
if (afs_mariner)
afs_MarinerLog("store$Creating", *avcp);
}
afs_PutFakeStat(&fakestate);
code = afs_CheckCode(code, treq, 20);
afs_DestroyReq(treq);
done2:
osi_FreeSmallSpace(OutFidStatus);
osi_FreeSmallSpace(OutDirStatus);
return code;
}
/*
* Check to see if we can track the change locally: requires that
* we have sufficiently recent info in data cache. If so, we
* know the new DataVersion number, and place it correctly in both the
* data and stat cache entries. This routine returns 1 if we should
* do the operation locally, and 0 otherwise.
*
* This routine must be called with the stat cache entry write-locked,
* and dcache entry write-locked.
*/
int
afs_LocalHero(struct vcache *avc, struct dcache *adc,
AFSFetchStatus * astat, int aincr)
{
afs_int32 ok;
afs_hyper_t avers;
AFS_STATCNT(afs_LocalHero);
hset64(avers, astat->dataVersionHigh, astat->DataVersion);
/* avers *is* the version number now, no matter what */
if (adc) {
/* does what's in the dcache *now* match what's in the vcache *now*,
* and do we have a valid callback? if not, our local copy is not "ok" */
ok = (hsame(avc->f.m.DataVersion, adc->f.versionNo) && avc->callback
&& (avc->f.states & CStatd) && avc->cbExpires >= osi_Time());
} else {
ok = 0;
}
if (ok) {
/* check that the DV on the server is what we expect it to be */
afs_hyper_t newDV;
hset(newDV, adc->f.versionNo);
hadd32(newDV, aincr);
if (!hsame(avers, newDV)) {
ok = 0;
}
}
#if defined(AFS_SGI_ENV)
osi_Assert(avc->v.v_type == VDIR);
#endif
/* The bulk status code used the length as a sequence number. */
/* Don't update the vcache entry unless the stats are current. */
if (avc->f.states & CStatd) {
hset(avc->f.m.DataVersion, avers);
#ifdef AFS_64BIT_CLIENT
FillInt64(avc->f.m.Length, astat->Length_hi, astat->Length);
#else /* AFS_64BIT_CLIENT */
avc->f.m.Length = astat->Length;
#endif /* AFS_64BIT_CLIENT */
avc->f.m.Date = astat->ClientModTime;
}
if (ok) {
/* we've been tracking things correctly */
adc->dflags |= DFEntryMod;
adc->f.versionNo = avers;
return 1;
} else {
if (adc) {
ZapDCE(adc);
DZap(adc);
}
if (avc->f.states & CStatd) {
osi_dnlc_purgedp(avc);
}
return 0;
}
}
int
main(int argc, char **argv)
{
char scell[MAXCELLCHARS], dcell[MAXCELLCHARS];
afs_uint32 ssrv, dsrv;
char *databuffer, *srcf = NULL, *destd = NULL, *destf = NULL, *destpath = NULL;
struct stat statbuf;
struct AFSStoreStatus sst;
struct AFSFetchStatus fst, dfst;
struct AFSVolSync vs;
struct AFSCallBack scb, dcb;
struct AFSFid sf, dd, df;
int filesz = 0;
int ch, blksize, bytesremaining, bytes;
struct timeval start, finish;
struct timezone tz;
struct rx_securityClass *ssc = 0, *dsc = 0;
int sscindex, dscindex;
struct rx_connection *sconn = NULL, *dconn = NULL;
struct rx_call *scall = NULL, *dcall = NULL;
int code = 0, fetchcode, storecode, printcallerrs = 0;
int slcl = 0, dlcl = 0, unlock = 0;
int sfd = 0, dfd = 0, unauth = 0;
struct AFSCBFids theFids;
struct AFSCBs theCBs;
blksize = 8 * 1024;
while ((ch = getopt(argc, argv, "iouUb:")) != -1) {
switch (ch) {
case 'b':
blksize = atoi(optarg);
break;
case 'i':
slcl = 1;
break;
case 'o':
dlcl = 1;
break;
case 'u':
unauth = 1;
break;
case 'U':
unlock = 1;
break;
default:
printf("Unknown option '%c'\n", ch);
exit(1);
}
}
if (argc - optind + unlock < 2) {
fprintf(stderr,
"Usage: afscp [-i|-o]] [-b xfersz] [-u] [-U] source [dest]\n");
fprintf(stderr, " -b Set block size\n");
fprintf(stderr, " -i Source is local (copy into AFS)\n");
fprintf(stderr, " -o Dest is local (copy out of AFS)\n");
fprintf(stderr, " -u Run unauthenticated\n");
fprintf(stderr, " -U Send an unlock request for source. (dest path not required)\n");
fprintf(stderr, "source and dest can be paths or specified as:\n");
fprintf(stderr, " @afs:cellname:servername:volume:vnode:uniq\n");
exit(1);
}
srcf = argv[optind++];
if (!unlock) {
destpath = argv[optind++];
destd = strdup(destpath);
if (!destd) {
perror("strdup");
exit(1);
}
if ((destf = strrchr(destd, '/'))) {
*destf++ = 0;
} else {
destf = destd;
destd = ".";
}
} else if (slcl) {
fprintf(stderr, "-i and -U cannot be used together\n");
}
if (!slcl && statfile(srcf, scell, &ssrv, &sf)) {
fprintf(stderr, "Cannot get attributes of %s\n", srcf);
exit(1);
}
if (!unlock && !dlcl && statfile(destd, dcell, &dsrv, &dd)) {
fprintf(stderr, "Cannot get attributes of %s\n", destd);
exit(1);
}
if ((databuffer = malloc(blksize)) == NULL) {
perror("malloc");
exit(1);
}
if (do_rx_Init())
exit(1);
if (start_cb_server()) {
printf("Cannot start callback service\n");
goto Fail_rx;
}
if (!slcl) {
sscindex = scindex_RXKAD;
if (unauth || (ssc = get_sc(scell)) == NULL) {
ssc = rxnull_NewClientSecurityObject();
sscindex = scindex_NULL;
/*printf("Cannot get authentication for cell %s; running unauthenticated\n", scell); */
}
sscindex = scindex_NULL;
if ((sconn =
rx_NewConnection(ssrv, htons(AFSCONF_FILEPORT), 1, ssc,
sscindex))
== NULL) {
struct in_addr s;
s.s_addr = ssrv;
printf("Cannot initialize rx connection to source server (%s)\n",
inet_ntoa(s));
goto Fail_sc;
}
}
if (!dlcl && !unlock) {
if (!slcl && ssrv == dsrv) {
dconn = sconn;
dsc = NULL;
} else {
if (slcl || strcmp(scell, dcell)) {
dscindex = scindex_RXKAD;
if (unauth || (dsc = get_sc(dcell)) == NULL) {
dsc = rxnull_NewClientSecurityObject();
dscindex = scindex_NULL;
/*printf("Cannot get authentication for cell %s; running unauthenticated\n", dcell); */
}
dscindex = scindex_NULL;
} else {
dsc = ssc;
dscindex = sscindex;
}
if ((dconn =
rx_NewConnection(dsrv, htons(AFSCONF_FILEPORT), 1, dsc,
dscindex))
== NULL) {
struct in_addr s;
s.s_addr = dsrv;
printf
("Cannot initialize rx connection to dest server (%s)\n",
inet_ntoa(s));
goto Fail_sconn;
}
}
}
memset(&sst, 0, sizeof(struct AFSStoreStatus));
if (dlcl && !unlock) {
dfd = open(destpath, O_RDWR | O_CREAT | O_EXCL, 0666);
if (dfd < 0 && errno == EEXIST) {
printf("%s already exists, overwriting\n", destpath);
dfd = open(destpath, O_RDWR | O_TRUNC, 0666);
if (dfd < 0) {
fprintf(stderr, "Cannot open %s (%s)\n", destpath,
afs_error_message(errno));
goto Fail_dconn;
}
} else if (dfd < 0) {
fprintf(stderr, "Cannot open %s (%s)\n", destpath,
afs_error_message(errno));
goto Fail_dconn;
}
} else if (!unlock) {
if ((code =
RXAFS_CreateFile(dconn, &dd, destf, &sst, &df, &fst, &dfst, &dcb,
&vs))) {
if (code == EEXIST) {
printf("%s already exits, overwriting\n", destpath);
if (statfile(destpath, dcell, &dsrv, &df))
fprintf(stderr, "Cannot get attributes of %s\n",
destpath);
else
code = 0;
} else {
printf("Cannot create %s (%s)\n", destpath,
afs_error_message(code));
if (code)
goto Fail_dconn;
}
}
}
if (slcl) {
sfd = open(srcf, O_RDONLY, 0);
if (sfd < 0) {
fprintf(stderr, "Cannot open %s (%s)\n", srcf,
afs_error_message(errno));
goto Fail_dconn;
}
if (fstat(sfd, &statbuf) < 0) {
fprintf(stderr, "Cannot stat %s (%s)\n", srcf,
afs_error_message(errno));
close(sfd);
goto Fail_dconn;
}
} else {
if ((code = RXAFS_FetchStatus(sconn, &sf, &fst, &scb, &vs))) {
printf("Cannot fetchstatus of %d.%d (%s)\n", sf.Volume, sf.Vnode,
afs_error_message(code));
goto Fail_dconn;
}
}
if (slcl) {
filesz = statbuf.st_size;
} else {
filesz = fst.Length;
}
printcallerrs = 0;
fetchcode = 0;
storecode = 0;
if (!slcl && !unlock)
scall = rx_NewCall(sconn);
if (!dlcl && !unlock)
dcall = rx_NewCall(dconn);
gettimeofday(&start, &tz);
if (unlock) {
if (fst.lockCount) {
printf("Sending 1 unlock for %s (%d locks)\n", srcf, fst.lockCount);
if ((code = RXAFS_ReleaseLock(sconn, &sf, &vs))) {
printf("Unable to unlock %s (%s)\n", srcf,
afs_error_message(code));
}
} else {
printf("No locks for %s\n", srcf);
}
fetchcode = code;
goto Finish;
}
if (!slcl) {
if ((code = StartRXAFS_FetchData(scall, &sf, 0, filesz))) {
printf("Unable to fetch data from %s (%s)\n", srcf,
afs_error_message(code));
goto Fail_call;
}
}
if (!dlcl) {
if (slcl) {
sst.Mask = AFS_SETMODTIME | AFS_SETMODE;
sst.ClientModTime = statbuf.st_mtime;
sst.UnixModeBits =
statbuf.st_mode & ~(S_IFMT | S_ISUID | S_ISGID);
} else {
sst.Mask = AFS_SETMODTIME | AFS_SETMODE;
sst.ClientModTime = fst.ClientModTime;
sst.UnixModeBits =
fst.UnixModeBits & ~(S_IFMT | S_ISUID | S_ISGID);
}
if ((code =
StartRXAFS_StoreData(dcall, &df, &sst, 0, filesz, filesz))) {
printf("Unable to store data to %s (%s)\n", destpath,
afs_error_message(code));
goto Fail_call;
}
}
if (slcl) {
bytesremaining = statbuf.st_size;
} else {
rx_Read(scall, (char *)&bytesremaining, sizeof(afs_int32));
bytesremaining = ntohl(bytesremaining);
}
while (bytesremaining > 0) {
/*printf("%d bytes remaining\n",bytesremaining); */
if (slcl) {
if ((bytes =
read(sfd, databuffer, min(blksize, bytesremaining))) <= 0) {
fetchcode = errno;
break;
}
} else {
if ((bytes =
rx_Read(scall, databuffer,
min(blksize, bytesremaining))) <= 0)
break;
}
if (dlcl) {
if (write(dfd, databuffer, bytes) != bytes) {
storecode = errno;
break;
}
} else {
if (rx_Write(dcall, databuffer, bytes) != bytes)
break;
}
bytesremaining -= bytes;
/*printf("%d bytes copied\n",bytes); */
}
if (bytesremaining > 0) {
printf("Some network error occured while copying data\n");
goto Fail_call;
}
if (!slcl)
fetchcode = EndRXAFS_FetchData(scall, &fst, &scb, &vs);
if (!dlcl)
storecode = EndRXAFS_StoreData(dcall, &fst, &vs);
printcallerrs = 1;
Fail_call:
if (slcl) {
if (close(sfd) && !fetchcode)
fetchcode = errno;
} else {
fetchcode = rx_EndCall(scall, fetchcode);
}
if (fetchcode && printcallerrs)
printf("Error returned from fetch: %s\n", afs_error_message(fetchcode));
if (dlcl) {
if (close(dfd) && !storecode)
storecode = errno;
} else if (!unlock) {
storecode = rx_EndCall(dcall, storecode);
}
if (storecode && printcallerrs)
printf("Error returned from store: %s\n", afs_error_message(storecode));
Finish:
gettimeofday(&finish, &tz);
if (!slcl) {
theFids.AFSCBFids_len = 1;
theFids.AFSCBFids_val = &sf;
theCBs.AFSCBs_len = 1;
theCBs.AFSCBs_val = &scb;
scb.CallBackType = CB_DROPPED;
if ((code = RXAFS_GiveUpCallBacks(sconn, &theFids, &theCBs)))
printf("Could not give up source callback: %s\n",
afs_error_message(code));
}
if (!dlcl) {
theFids.AFSCBFids_len = 1;
theFids.AFSCBFids_val = &df;
theCBs.AFSCBs_len = 1;
theCBs.AFSCBs_val = &dcb;
dcb.CallBackType = CB_DROPPED;
if ((code = RXAFS_GiveUpCallBacks(dconn, &theFids, &theCBs)))
printf("Could not give up target callback: %s\n",
afs_error_message(code));
}
if (code == 0)
code = storecode;
if (code == 0)
code = fetchcode;
Fail_dconn:
if (!dlcl && !unlock && (slcl || dconn != sconn))
rx_DestroyConnection(dconn);
Fail_sconn:
if (!slcl)
rx_DestroyConnection(sconn);
Fail_sc:
if (dsc && dsc != ssc)
RXS_Close(dsc);
if (ssc)
RXS_Close(ssc);
Fail_rx:
rx_Finalize();
free(databuffer);
if (printcallerrs && !unlock) {
double rate, size, time;
if (finish.tv_sec == start.tv_sec) {
printf("Copied %d bytes in %d microseconds\n", filesz,
(int)(finish.tv_usec - start.tv_usec));
} else {
printf("Copied %d bytes in %d seconds\n", filesz,
(int)(finish.tv_sec - start.tv_sec));
}
size = filesz / 1024.0;
time =
finish.tv_sec - start.tv_sec + (finish.tv_usec -
start.tv_usec) / 1e+06;
rate = size / time;
printf("Transfer rate %g Kbytes/sec\n", rate);
}
exit(code != 0);
}
/*!
* Handles all the reconnection details:
* - Get all the details about the vnode: name, fid, and parent dir fid.
* - Send data to server.
* - Handle errors.
* - Reorder vhash and dcaches in their hashes, using the newly acquired fid.
*/
int
afs_ProcessOpCreate(struct vcache *avc, struct vrequest *areq,
afs_ucred_t *acred)
{
char *tname = NULL, *ttargetName = NULL;
struct AFSStoreStatus InStatus;
struct AFSFetchStatus OutFidStatus, OutDirStatus;
struct VenusFid pdir_fid, newFid;
struct AFSCallBack CallBack;
struct AFSVolSync tsync;
struct vcache *tdp = NULL, *tvc = NULL;
struct dcache *tdc = NULL;
struct afs_conn *tc;
struct rx_connection *rxconn;
afs_int32 hash, new_hash, index;
afs_size_t tlen;
int code, op = 0;
XSTATS_DECLS;
tname = afs_osi_Alloc(AFSNAMEMAX);
if (!tname)
return ENOMEM;
code = afs_GetParentVCache(avc, 0, &pdir_fid, tname, &tdp);
if (code)
goto end;
/* This data may also be in linkData, but then we have to deal with
* the joy of terminating NULLs and . and file modes. So just get
* it from the dcache where it won't have been fiddled with.
*/
if (vType(avc) == VLNK) {
afs_size_t offset;
struct dcache *tdc;
struct osi_file *tfile;
tdc = afs_GetDCache(avc, 0, areq, &offset, &tlen, 0);
if (!tdc) {
code = ENOENT;
goto end;
}
if (tlen > 1024) {
afs_PutDCache(tdc);
code = EFAULT;
goto end;
}
tlen++; /* space for NULL */
ttargetName = afs_osi_Alloc(tlen);
if (!ttargetName) {
afs_PutDCache(tdc);
return ENOMEM;
}
ObtainReadLock(&tdc->lock);
tfile = afs_CFileOpen(&tdc->f.inode);
code = afs_CFileRead(tfile, 0, ttargetName, tlen);
ttargetName[tlen-1] = '\0';
afs_CFileClose(tfile);
ReleaseReadLock(&tdc->lock);
afs_PutDCache(tdc);
}
/* Set status. */
InStatus.Mask = AFS_SETMODTIME | AFS_SETMODE | AFS_SETGROUP;
InStatus.ClientModTime = avc->f.m.Date;
InStatus.Owner = avc->f.m.Owner;
InStatus.Group = (afs_int32) afs_cr_gid(acred);
/* Only care about protection bits. */
InStatus.UnixModeBits = avc->f.m.Mode & 0xffff;
do {
tc = afs_Conn(&tdp->f.fid, areq, SHARED_LOCK, &rxconn);
if (tc) {
switch (vType(avc)) {
case VREG:
/* Make file on server. */
op = AFS_STATS_FS_RPCIDX_CREATEFILE;
XSTATS_START_TIME(op);
RX_AFS_GUNLOCK();
code = RXAFS_CreateFile(tc->id,
(struct AFSFid *)&tdp->f.fid.Fid,
tname, &InStatus,
(struct AFSFid *) &newFid.Fid,
&OutFidStatus, &OutDirStatus,
&CallBack, &tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
break;
case VDIR:
/* Make dir on server. */
op = AFS_STATS_FS_RPCIDX_MAKEDIR;
XSTATS_START_TIME(op);
RX_AFS_GUNLOCK();
code = RXAFS_MakeDir(rxconn, (struct AFSFid *) &tdp->f.fid.Fid,
tname, &InStatus,
(struct AFSFid *) &newFid.Fid,
&OutFidStatus, &OutDirStatus,
&CallBack, &tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
break;
case VLNK:
/* Make symlink on server. */
op = AFS_STATS_FS_RPCIDX_SYMLINK;
XSTATS_START_TIME(op);
RX_AFS_GUNLOCK();
code = RXAFS_Symlink(rxconn,
(struct AFSFid *) &tdp->f.fid.Fid,
tname, ttargetName, &InStatus,
(struct AFSFid *) &newFid.Fid,
&OutFidStatus, &OutDirStatus, &tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
break;
default:
op = AFS_STATS_FS_RPCIDX_CREATEFILE;
code = 1;
break;
}
} else
code = -1;
} while (afs_Analyze(tc, rxconn, code, &tdp->f.fid, areq, op, SHARED_LOCK, NULL));
/* TODO: Handle errors. */
if (code) {
/* printf("afs_ProcessOpCreate: error while creating vnode on server, code=%d .\n", code); */
goto end;
}
/* The rpc doesn't set the cell number. */
newFid.Cell = avc->f.fid.Cell;
/*
* Change the fid in the dir entry.
*/
/* Seek the dir's dcache. */
tdc = afs_FindDCacheByFid(&tdp->f.fid);
if (tdc) {
/* And now change the fid in the parent dir entry. */
afs_dir_ChangeFid(tdc, tname, &avc->f.fid.Fid.Vnode, &newFid.Fid.Vnode);
afs_PutDCache(tdc);
}
if (vType(avc) == VDIR) {
/* Change fid in the dir for the "." entry. ".." has alredy been
* handled by afs_FixChildrenFids when processing the parent dir.
*/
tdc = afs_FindDCacheByFid(&avc->f.fid);
if (tdc) {
afs_dir_ChangeFid(tdc, ".", &avc->f.fid.Fid.Vnode,
&newFid.Fid.Vnode);
if (avc->f.m.LinkCount >= 2)
/* For non empty dirs, fix children's parentVnode and
* parentUnique reference.
*/
afs_FixChildrenFids(&avc->f.fid, &newFid);
afs_PutDCache(tdc);
}
}
/* Recompute hash chain positions for vnode and dcaches.
* Then change to the new FID.
*/
/* The vcache goes first. */
ObtainWriteLock(&afs_xvcache, 735);
/* Old fid hash. */
hash = VCHash(&avc->f.fid);
/* New fid hash. */
new_hash = VCHash(&newFid);
/* Remove hash from old position. */
/* XXX: not checking array element contents. It shouldn't be empty.
* If it oopses, then something else might be wrong.
*/
if (afs_vhashT[hash] == avc) {
/* First in hash chain (might be the only one). */
afs_vhashT[hash] = avc->hnext;
} else {
/* More elements in hash chain. */
for (tvc = afs_vhashT[hash]; tvc; tvc = tvc->hnext) {
if (tvc->hnext == avc) {
tvc->hnext = avc->hnext;
break;
}
}
} /* if (!afs_vhashT[i]->hnext) */
QRemove(&avc->vhashq);
/* Insert hash in new position. */
avc->hnext = afs_vhashT[new_hash];
afs_vhashT[new_hash] = avc;
QAdd(&afs_vhashTV[VCHashV(&newFid)], &avc->vhashq);
ReleaseWriteLock(&afs_xvcache);
/* Do the same thing for all dcaches. */
hash = DVHash(&avc->f.fid);
ObtainWriteLock(&afs_xdcache, 743);
for (index = afs_dvhashTbl[hash]; index != NULLIDX; index = hash) {
hash = afs_dvnextTbl[index];
tdc = afs_GetValidDSlot(index);
ReleaseReadLock(&tdc->tlock);
if (afs_indexUnique[index] == avc->f.fid.Fid.Unique) {
if (!FidCmp(&tdc->f.fid, &avc->f.fid)) {
/* Safer but slower. */
afs_HashOutDCache(tdc, 0);
/* Put dcache in new positions in the dchash and dvhash. */
new_hash = DCHash(&newFid, tdc->f.chunk);
afs_dcnextTbl[tdc->index] = afs_dchashTbl[new_hash];
afs_dchashTbl[new_hash] = tdc->index;
new_hash = DVHash(&newFid);
afs_dvnextTbl[tdc->index] = afs_dvhashTbl[new_hash];
afs_dvhashTbl[new_hash] = tdc->index;
afs_indexUnique[tdc->index] = newFid.Fid.Unique;
memcpy(&tdc->f.fid, &newFid, sizeof(struct VenusFid));
} /* if fid match */
} /* if uniquifier match */
if (tdc)
afs_PutDCache(tdc);
} /* for all dcaches in this hash bucket */
ReleaseWriteLock(&afs_xdcache);
/* Now we can set the new fid. */
memcpy(&avc->f.fid, &newFid, sizeof(struct VenusFid));
end:
if (tdp)
afs_PutVCache(tdp);
afs_osi_Free(tname, AFSNAMEMAX);
if (ttargetName)
afs_osi_Free(ttargetName, tlen);
return code;
}
