3 /*-
89  * For NFSv3, the file handle is variable in size, so most fixed sized
91  * that starts with any fixed size section is followed by an array
92  * that covers the maximum size required.
125 static int	nfs_read(struct open_file *f, void *buf, size_t size, size_t *resid);
185 	void *pkt = NULL;  in nfs_getrootfh()  local
213 	if (len > sizeof(args->path))  in nfs_getrootfh()
214 		len = sizeof(args->path);  in nfs_getrootfh()
215 	args->len = htonl(len);  in nfs_getrootfh()
216 	bcopy(path, args->path, len);  in nfs_getrootfh()
220 	    args, len, (void **)&repl, &pkt);  in nfs_getrootfh()
221 	if (cc == -1) {  in nfs_getrootfh()
222 		free(pkt);  in nfs_getrootfh()
227 		free(pkt);  in nfs_getrootfh()
230 	if (repl->errno != 0) {  in nfs_getrootfh()
231 		free(pkt);  in nfs_getrootfh()
232 		return (ntohl(repl->errno));  in nfs_getrootfh()
234 	*fhlenp = ntohl(repl->fhsize);  in nfs_getrootfh()
235 	bcopy(repl->fh, fhp, *fhlenp);  in nfs_getrootfh()
238 	free(pkt);  in nfs_getrootfh()
249 	void *pkt = NULL;  in nfs_lookupfh()  local
277 	args->fhsize = htonl(d->fhsize);  in nfs_lookupfh()
278 	bcopy(d->fh, args->fhplusname, d->fhsize);  in nfs_lookupfh()
282 	pos = roundup(d->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);  in nfs_lookupfh()
283 	args->fhplusname[pos++] = htonl(len);  in nfs_lookupfh()
284 	bcopy(name, &args->fhplusname[pos], len);  in nfs_lookupfh()
288 	cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_LOOKUP,  in nfs_lookupfh()
289 	    args, len, (void **)&repl, &pkt);  in nfs_lookupfh()
290 	if (cc == -1) {  in nfs_lookupfh()
291 		free(pkt);  in nfs_lookupfh()
292 		return (errno);		/* XXX - from rpc_call */  in nfs_lookupfh()
295 		free(pkt);  in nfs_lookupfh()
298 	if (repl->errno != 0) {  in nfs_lookupfh()
299 		free(pkt);  in nfs_lookupfh()
301 		return (ntohl(repl->errno));  in nfs_lookupfh()
303 	newfd->fhsize = ntohl(repl->fhsize);  in nfs_lookupfh()
304 	bcopy(repl->fhplusattr, &newfd->fh, newfd->fhsize);  in nfs_lookupfh()
305 	pos = roundup(newfd->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);  in nfs_lookupfh()
306 	if (repl->fhplusattr[pos++] == 0) {  in nfs_lookupfh()
307 		free(pkt);  in nfs_lookupfh()
310 	bcopy(&repl->fhplusattr[pos], &newfd->fa, sizeof(newfd->fa));  in nfs_lookupfh()
311 	free(pkt);  in nfs_lookupfh()
322 	void *pkt = NULL;  in nfs_readlink()  local
349 	args->fhsize = htonl(d->fhsize);  in nfs_readlink()
350 	bcopy(d->fh, args->fh, d->fhsize);  in nfs_readlink()
351 	cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_READLINK,  in nfs_readlink()
352 	    args, sizeof(uint32_t) + roundup(d->fhsize, sizeof(uint32_t)),  in nfs_readlink()
353 	    (void **)&repl, &pkt);  in nfs_readlink()
354 	if (cc == -1)  in nfs_readlink()
362 	if (repl->errno != 0) {  in nfs_readlink()
363 		rc = ntohl(repl->errno);  in nfs_readlink()
367 	if (repl->ok == 0) {  in nfs_readlink()
372 	repl->len = ntohl(repl->len);  in nfs_readlink()
373 	if (repl->len > NFS_MAXPATHLEN) {  in nfs_readlink()
378 	bcopy(repl->path, buf, repl->len);  in nfs_readlink()
379 	buf[repl->len] = 0;  in nfs_readlink()
381 	free(pkt);  in nfs_readlink()
388  * Return transfer count or -1 (and set errno)
393 	void *pkt = NULL;  in nfs_readdata()  local
418 	args->fhsize = htonl(d->fhsize);  in nfs_readdata()
419 	bcopy(d->fh, args->fhoffcnt, d->fhsize);  in nfs_readdata()
420 	pos = roundup(d->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);  in nfs_readdata()
421 	args->fhoffcnt[pos++] = 0;  in nfs_readdata()
422 	args->fhoffcnt[pos++] = htonl((uint32_t)off);  in nfs_readdata()
425 	args->fhoffcnt[pos] = htonl((uint32_t)len);  in nfs_readdata()
428 	cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_READ,  in nfs_readdata()
429 	    args, 4 * sizeof(uint32_t) + roundup(d->fhsize, sizeof(uint32_t)),  in nfs_readdata()
430 	    (void **)&repl, &pkt);  in nfs_readdata()
431 	if (cc == -1) {  in nfs_readdata()
433 		return (-1);  in nfs_readdata()
437 		free(pkt);  in nfs_readdata()
438 		return (-1);  in nfs_readdata()
440 	if (repl->errno != 0) {  in nfs_readdata()
441 		errno = ntohl(repl->errno);  in nfs_readdata()
442 		free(pkt);  in nfs_readdata()
443 		return (-1);  in nfs_readdata()
445 	rlen = cc - hlen;  in nfs_readdata()
446 	x = ntohl(repl->count);  in nfs_readdata()
450 		free(pkt);  in nfs_readdata()
451 		return (-1);  in nfs_readdata()
453 	bcopy(repl->data, addr, x);  in nfs_readdata()
454 	free(pkt);  in nfs_readdata()
486 	dev = f->f_devdata;  in nfs_open()
497 	if (f->f_dev->dv_type != DEVT_NET)  in nfs_open()
500 	if (!(desc = socktodesc(*(int *)(dev->d_opendata))))  in nfs_open()
504 	desc->myport = htons(--rpc_port);  in nfs_open()
505 	desc->destip = rootip;  in nfs_open()
553 		if (currfd->fa.fa_type != htonl(NFDIR)) {  in nfs_open()
564 		newfd->iodesc = currfd->iodesc;  in nfs_open()
592 		if (newfd->fa.fa_type == htonl(NFLNK)) {  in nfs_open()
636 	currfd->iodesc = desc;  in nfs_open()
641 		currfd->off = 0;  in nfs_open()
642 		currfd->cookie = 0;  in nfs_open()
643 		f->f_fsdata = (void *)currfd;  in nfs_open()
660 	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;  in nfs_close()
668 	f->f_fsdata = NULL;  in nfs_close()
677 nfs_read(struct open_file *f, void *buf, size_t size, size_t *resid)  in nfs_read()  argument
679 	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;  in nfs_read()
685 		printf("nfs_read: size=%lu off=%d\n", (u_long)size,  in nfs_read()
686 		       (int)fp->off);  in nfs_read()
688 	while ((int)size > 0) {  in nfs_read()
690 		cc = nfs_readdata(fp, fp->off, (void *)addr, size);  in nfs_read()
692 		if (cc == -1) {  in nfs_read()
697 			return (errno);	/* XXX - from nfs_readdata */  in nfs_read()
706 		fp->off += cc;  in nfs_read()
708 		size -= cc;  in nfs_read()
712 		*resid = size;  in nfs_read()
720 	struct nfs_iodesc *d = (struct nfs_iodesc *)f->f_fsdata;  in nfs_seek()
721 	uint32_t size = ntohl(d->fa.fa_size.val[1]);  in nfs_seek()  local
725 		d->off = offset;  in nfs_seek()
728 		d->off += offset;  in nfs_seek()
731 		d->off = size - offset;  in nfs_seek()
735 		return (-1);  in nfs_seek()
738 	return (d->off);  in nfs_seek()
748 	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;  in nfs_stat()
751 	ftype = ntohl(fp->fa.fa_type);  in nfs_stat()
752 	mode  = ntohl(fp->fa.fa_mode);  in nfs_stat()
755 	sb->st_mode  = mode;  in nfs_stat()
756 	sb->st_nlink = ntohl(fp->fa.fa_nlink);  in nfs_stat()
757 	sb->st_uid   = ntohl(fp->fa.fa_uid);  in nfs_stat()
758 	sb->st_gid   = ntohl(fp->fa.fa_gid);  in nfs_stat()
759 	sb->st_size  = ntohl(fp->fa.fa_size.val[1]);  in nfs_stat()
767 	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;  in nfs_readdir()
770 	static void *pkt = NULL;  in nfs_readdir()  local
786 	if (fp != pfp || fp->off != cookie) {  in nfs_readdir()
789 		free(pkt);  in nfs_readdir()
790 		pkt = NULL;  in nfs_readdir()
794 		args->fhsize = htonl(fp->fhsize);  in nfs_readdir()
795 		bcopy(fp->fh, args->fhpluscookie, fp->fhsize);  in nfs_readdir()
796 		pos = roundup(fp->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);  in nfs_readdir()
797 		args->fhpluscookie[pos++] = htonl(fp->off >> 32);  in nfs_readdir()
798 		args->fhpluscookie[pos++] = htonl(fp->off);  in nfs_readdir()
799 		args->fhpluscookie[pos++] = htonl(fp->cookie >> 32);  in nfs_readdir()
800 		args->fhpluscookie[pos++] = htonl(fp->cookie);  in nfs_readdir()
801 		args->fhpluscookie[pos] = htonl(NFS_READDIRSIZE);  in nfs_readdir()
803 		cc = rpc_call(fp->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_READDIR,  in nfs_readdir()
805 		    roundup(fp->fhsize, sizeof(uint32_t)),  in nfs_readdir()
806 		    (void **)&buf, &pkt);  in nfs_readdir()
807 		if (cc == -1) {  in nfs_readdir()
812 		if (repl->errno != 0) {  in nfs_readdir()
813 			rc = ntohl(repl->errno);  in nfs_readdir()
817 		cookie = fp->off;  in nfs_readdir()
818 		fp->cookie = ((uint64_t)ntohl(repl->cookiev0) << 32) |  in nfs_readdir()
819 		    ntohl(repl->cookiev1);  in nfs_readdir()
824 	if (rent->follows == 0) {  in nfs_readdir()
826 		if (rent->fid0 != 0) {  in nfs_readdir()
833 	d->d_namlen = ntohl(rent->len);  in nfs_readdir()
834 	bcopy(rent->nameplus, d->d_name, d->d_namlen);  in nfs_readdir()
835 	d->d_name[d->d_namlen] = '\0';  in nfs_readdir()
837 	pos = roundup(d->d_namlen, sizeof(uint32_t)) / sizeof(uint32_t);  in nfs_readdir()
838 	fp->off = cookie = ((uint64_t)ntohl(rent->nameplus[pos]) << 32) |  in nfs_readdir()
839 	    ntohl(rent->nameplus[pos + 1]);  in nfs_readdir()
841 	buf = (char *)&rent->nameplus[pos];  in nfs_readdir()
845 	free(pkt);  in nfs_readdir()
846 	pkt = NULL;  in nfs_readdir()