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c871a6da4c
freebsd/sys/nfs4client/nfs4_subs.c
Jim Rees 73c02c410e NFSv4 fixes from Connectathon 2004: 
remove unused pid field of file context struct
map nfs4 error codes to errnos
eliminate redundant code from nfs4_request
use zero stateid on setattr that doesn't set file size
use same clientid on all mounts until reboot
invalidate dirty bufs in nfs4_close, to play it safe
open file for writing if truncating and it's not already open

Approved by:	alfred
2004-02-27 19:37:43 +00:00

1361 lines
32 KiB
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/* $FreeBSD$ */
/* $Id: nfs4_subs.c,v 1.52 2003/11/05 14:58:59 rees Exp $ */
/*
* copyright (c) 2003
* the regents of the university of michigan
* all rights reserved
*
* permission is granted to use, copy, create derivative works and redistribute
* this software and such derivative works for any purpose, so long as the name
* of the university of michigan is not used in any advertising or publicity
* pertaining to the use or distribution of this software without specific,
* written prior authorization. if the above copyright notice or any other
* identification of the university of michigan is included in any copy of any
* portion of this software, then the disclaimer below must also be included.
*
* this software is provided as is, without representation from the university
* of michigan as to its fitness for any purpose, and without warranty by the
* university of michigan of any kind, either express or implied, including
* without limitation the implied warranties of merchantability and fitness for
* a particular purpose. the regents of the university of michigan shall not be
* liable for any damages, including special, indirect, incidental, or
* consequential damages, with respect to any claim arising out of or in
* connection with the use of the software, even if it has been or is hereafter
* advised of the possibility of such damages.
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bio.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/namei.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/malloc.h>
#include <sys/sysent.h>
#include <sys/syscall.h>
#include <sys/sysproto.h>
#include <sys/fcntl.h>
#include <machine/stdarg.h>
#include <vm/vm.h>
#include <vm/vm_object.h>
#include <vm/vm_extern.h>
#include <vm/uma.h>
#include <rpc/rpcclnt.h>
#include <nfs/rpcv2.h>
#include <nfs/nfsproto.h>
#include <nfsclient/nfs.h>
#include <nfs4client/nfs4.h>
#include <nfsclient/nfsnode.h>
#include <nfsclient/nfsmount.h>
#include <nfs/xdr_subs.h>
#include <nfsclient/nfsm_subs.h>
#include <nfs4client/nfs4_dev.h>
#include <nfs4client/nfs4_idmap.h>
#include <nfs4client/nfs4m_subs.h>
#include <netinet/in.h>
#define NFSM_DISSECT(s) do { \
tl = nfsm_dissect_xx((s), md, dpos); \
if (tl == NULL) { \
printf("NFSM_DISSECT error; allocation (%s/%d) (%s:%d)\n", #s, s, __FILE__, __LINE__); \
return (EBADRPC); \
} \
} while (0)
#define NFSM_ADV(s) do { \
t1 = nfsm_adv_xx((s), md, dpos); \
if (t1 != 0) { \
printf("NFSM_ADV error; allocation (%s/%d) (%s:%d)\n", #s, s, __FILE__, __LINE__); \
return (EBADRPC); \
} \
} while (0)
#define NFSM_MTOTIME(t) do { \
NFSM_DISSECT(3 * NFSX_UNSIGNED); \
(t).tv_sec = fxdr_hyper(tl); \
tl += 2; \
(t).tv_nsec = fxdr_unsigned(long, *tl++); \
} while (0)
static uint32_t __fsinfo_bm[2], __fsattr_bm[2], __getattr_bm[2], __readdir_bm[2];
nfsv4bitmap nfsv4_fsinfobm = { 2, __fsinfo_bm };
nfsv4bitmap nfsv4_fsattrbm = { 2, __fsattr_bm };
nfsv4bitmap nfsv4_getattrbm = { 2, __getattr_bm };
nfsv4bitmap nfsv4_readdirbm = { 2, __readdir_bm };
/* Helper routines */
int nfsm_v4build_attrs_xx(struct vattr *, struct mbuf **, caddr_t *);
int nfsm_v4dissect_changeinfo_xx(nfsv4changeinfo *, struct mbuf **, caddr_t *);
void
nfsm_v4init(void)
{
/* Set up bitmasks */
FA4_SET(FA4_FSID, __fsinfo_bm);
FA4_SET(FA4_MAXREAD, __fsinfo_bm);
FA4_SET(FA4_MAXWRITE, __fsinfo_bm);
FA4_SET(FA4_LEASE_TIME, __fsinfo_bm);
FA4_SET(FA4_FSID, __fsattr_bm);
FA4_SET(FA4_FILES_FREE, __fsattr_bm);
FA4_SET(FA4_FILES_TOTAL, __fsattr_bm);
FA4_SET(FA4_SPACE_AVAIL, __fsattr_bm);
FA4_SET(FA4_SPACE_FREE, __fsattr_bm);
FA4_SET(FA4_SPACE_TOTAL, __fsattr_bm);
FA4_SET(FA4_TYPE, __getattr_bm);
FA4_SET(FA4_FSID, __getattr_bm);
FA4_SET(FA4_SIZE, __getattr_bm);
FA4_SET(FA4_MODE, __getattr_bm);
FA4_SET(FA4_RAWDEV, __getattr_bm);
FA4_SET(FA4_NUMLINKS, __getattr_bm);
FA4_SET(FA4_OWNER, __getattr_bm);
FA4_SET(FA4_OWNER_GROUP, __getattr_bm);
FA4_SET(FA4_FILEID, __getattr_bm);
FA4_SET(FA4_TIME_MODIFY, __getattr_bm);
FA4_SET(FA4_TIME_ACCESS, __getattr_bm);
FA4_SET(FA4_TYPE, __readdir_bm);
FA4_SET(FA4_FSID, __readdir_bm);
FA4_SET(FA4_FILEID, __readdir_bm);
FA4_SET(FA4_RDATTR_ERROR, __readdir_bm);
}
/*
* Util
*/
uint32_t
nfs_v4fileid4_to_fileid(uint64_t fid)
{
return ((uint32_t)((fid >> 32) | fid));
}
void
nfs_v4initcompound(struct nfs4_compound *cp)
{
bzero(cp, sizeof(*cp));
}
/*
* Build/dissect XDR buffer with a format string.
*
* u - unsigned
* h - hyper
* s - stringlength, string
* k - skip length (bytes)
* a - arraylength, componentlenght, array
* o - opaque fix length
* O - opaque var length in bytes
*/
void
nfsm_buildf_xx(struct mbuf **mb, caddr_t *bpos, char *fmt, ...)
{
uint32_t *tl, t1, len, uval;
uint64_t hval;
va_list args;
char *p, *which;
va_start(args, fmt);
for (which = fmt; *which != '\0'; which++)
switch (*which) {
case 'u': /* Unsigned */
tl = nfsm_build_xx(NFSX_UNSIGNED, mb, bpos);
uval = va_arg(args, uint32_t);
*tl++ = txdr_unsigned(uval);
break;
case 'h': /* Hyper */
tl = nfsm_build_xx(2 * NFSX_UNSIGNED, mb, bpos);
hval = va_arg(args, uint64_t);
txdr_hyper(hval, tl);
break;
case 'o': /* Fixed-length opaque */
len = va_arg(args, uint32_t);
p = va_arg(args, char *);
tl = nfsm_build_xx(nfsm_rndup(len), mb, bpos);
bcopy(p, tl, len);
break;
case 'O': /* Variable-length opaque */
case 's': /* String */
len = va_arg(args, uint32_t);
p = va_arg(args, char *);
t1 = nfsm_strtom_xx(p, len, len, mb, bpos);
break;
case 'k': /* Skip */
len = va_arg(args, uint32_t);
nfsm_build_xx(nfsm_rndup(len), mb, bpos);
break;
default:
panic("Invalid buildf string %s[%c]", fmt, *which);
break;
}
va_end(args);
}
int
nfsm_dissectf_xx(struct mbuf **md, caddr_t *dpos, char *fmt, ...)
{
uint32_t *tl, t1, len, *uval;
uint64_t *hval;
va_list args;
char *p, *which;
va_start(args, fmt);
for (which = fmt; *which != '\0'; which++)
switch (*which) {
case 'u': /* Unsigned */
tl = nfsm_dissect_xx(NFSX_UNSIGNED, md, dpos);
if (tl == NULL)
return (EBADRPC);
uval = va_arg(args, uint32_t *);
*uval = fxdr_unsigned(uint32_t, *tl++);
break;
case 'h': /* Hyper */
tl = nfsm_dissect_xx(2 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL)
return (EBADRPC);
hval = va_arg(args, uint64_t *);
*hval = fxdr_hyper(tl);
break;
case 'o': /* Fixed-length opaque */
len = va_arg(args, uint32_t);
p = va_arg(args, void *);
tl = nfsm_dissect_xx(nfsm_rndup(len), md, dpos);
if (tl == NULL)
return (EBADRPC);
bcopy(tl, p, len);
break;
case 'O': /* Variable-length opaque */
case 's': /* String */
len = va_arg(args, uint32_t);
p = va_arg(args, char *);
tl = nfsm_dissect_xx(nfsm_rndup(len), md, dpos);
if (tl == NULL)
return (EBADRPC);
bcopy(tl, p, len);
break;
case 'k': /* Skip bytes */
len = va_arg(args, uint32_t);
t1 = nfsm_adv_xx(nfsm_rndup(len), md, dpos);
break;
default:
panic("Invalid dissectf string %s[%c]", fmt, *which);
break;
}
va_end(args);
return (0);
}
/*
* XXX - There are a few problems with the way the postops are places
* in the code. Ideally, they should be taken care of immediately, as
* to avoid uneceesary waits for mutexes, but then we would be
* introducing even more complexity by having to handle two separate
* cases. Also, since they are placed at the end of the vnops', there
* may be operations which sleep in between, further extending this
* wait. It is conceivable that there is a deadlock condition there,
* too.
*
* Also, for vnops that do multiple operations, it's inconvenient
* since on error, individual decoding will got nfsmout.
*/
int
nfs_v4postop(struct nfs4_compound *cp, int status)
{
struct nfs4_fctx *fcp = cp->fcp;
/*
* XXX does the previous result need to be stores with the
* lockowner? ack, spec is unclear ..
*/
if (fcp != NULL)
if (cp->seqidused < cp->rep_nops ||
(cp->seqidused + 1 == cp->rep_nops &&
NFS4_SEQIDMUTATINGERROR(status)))
fcp->lop->lo_seqid++;
return (status);
}
int
nfs_v4handlestatus(int status, struct nfs4_compound *cp)
{
return (status);
}
/*
* Initial setup of compound.
*/
int
nfsm_v4build_compound_xx(struct nfs4_compound *cp, char *tag,
struct mbuf **mb, caddr_t *bpos)
{
uint32_t t1, *tl, siz;
/* Tag */
siz = strlen(tag);
t1 = nfsm_rndup(siz) + NFSX_UNSIGNED;
if (t1 <= M_TRAILINGSPACE(*mb)) {
tl = nfsm_build_xx(t1, mb, bpos);
*tl++ = txdr_unsigned(siz);
*(tl + ((t1 >> 2) - 2)) = 0;
bcopy(tag, tl, siz);
} else {
t1 = nfsm_strtmbuf(mb, bpos, (const char *)tag, siz);
if (t1 != 0)
return (t1);
}
/* Minor version and argarray*/
tl = nfsm_build_xx(2 * NFSX_UNSIGNED, mb, bpos);
*tl++ = txdr_unsigned(NFS4_MINOR_VERSION);
/* Save for backfill */
cp->req_nopsp = tl;
*tl = txdr_unsigned(0);
cp->curvp = NULL;
cp->savevp = NULL;
return (0);
}
/*
* XXX
* - backfill for stateid, and such
*/
int
nfsm_v4build_finalize_xx(struct nfs4_compound *cp, struct mbuf **mb, caddr_t *bpos)
{
*cp->req_nopsp = txdr_unsigned(cp->req_nops);
return (0);
}
int
nfsm_v4build_putfh_xx(struct nfs4_compound *cp, struct vnode *vp,
struct mbuf **mb, caddr_t *bpos)
{
uint32_t t1;
/* Op */
nfsm_buildf_xx(mb, bpos, "u", NFSV4OP_PUTFH);
/* FH */
t1 = nfsm_fhtom_xx(vp, 1, mb, bpos);
if (t1 != 0)
return (t1);
cp->req_nops++;
cp->curvp = vp;
return (0);
}
int
nfsm_v4build_putfh_nv_xx(struct nfs4_compound *cp, struct nfs4_oparg_getfh *gfh,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uuo",
NFSV4OP_PUTFH,
gfh->fh_len,
gfh->fh_len,
&gfh->fh_val);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_simple_xx(struct nfs4_compound *cp, uint32_t op,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "u", op);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_getattr_xx(struct nfs4_compound *cp, struct nfs4_oparg_getattr *ga,
struct mbuf **mb, caddr_t *bpos)
{
int i;
/* Op + bitmap length + bitmap */
nfsm_buildf_xx(mb, bpos, "uu", NFSV4OP_GETATTR, ga->bm->bmlen);
for (i = 0; i < ga->bm->bmlen; i++)
nfsm_buildf_xx(mb, bpos, "u", ga->bm->bmval[i]);
ga->vp = cp->curvp;
cp->req_nops++;
return (0);
}
int
nfsm_v4build_setattr_xx(struct nfs4_compound *cp, struct vattr *vap,
struct nfs4_fctx *fcp, struct mbuf **mb, caddr_t *bpos)
{
int error;
static char zero_stateid[NFSX_V4STATEID];
nfsm_buildf_xx(mb, bpos, "uo",
NFSV4OP_SETATTR,
NFSX_V4STATEID, fcp ? fcp->stateid : zero_stateid);
error = nfsm_v4build_attrs_xx(vap, mb, bpos);
if (error == 0)
cp->req_nops++;
return (error);
}
int
nfsm_v4build_getfh_xx(struct nfs4_compound *cp, struct nfs4_oparg_getfh *gfh,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "u", NFSV4OP_GETFH);
gfh->vp = cp->curvp;
cp->req_nops++;
return (0);
}
int
nfsm_v4build_lookup_xx(struct nfs4_compound *cp, struct nfs4_oparg_lookup *l,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "us", NFSV4OP_LOOKUP, l->namelen, l->name);
cp->curvp = l->vp;
cp->req_nops++;
return (0);
}
int
nfsm_v4build_setclientid_xx(struct nfs4_compound *cp,
struct nfs4_oparg_setclientid *sci, struct mbuf **mb, caddr_t *bpos)
{
struct timeval tv;
microtime(&tv);
nfsm_buildf_xx(mb, bpos, "uuusussu",
NFSV4OP_SETCLIENTID,
tv.tv_sec, tv.tv_usec,
sci->namelen, sci->name,
sci->cb_prog,
sci->cb_netidlen, sci->cb_netid,
sci->cb_univaddrlen, sci->cb_univaddr,
0xCA11BACC);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_setclientid_confirm_xx(struct nfs4_compound *cp,
struct nfs4_oparg_setclientid *sci, struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uho",
NFSV4OP_SETCLIENTID_CONFIRM,
sci->clientid,
sizeof(sci->verf), sci->verf);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_open_xx(struct nfs4_compound *cp, struct nfs4_oparg_open *op,
struct mbuf **mb, caddr_t *bpos)
{
int error = 0;
struct nfs4_lowner *lop = op->fcp->lop;
nfsm_buildf_xx(mb, bpos, "uuuuhuu",
NFSV4OP_OPEN,
lop->lo_seqid,
op->flags & O_ACCMODE,
NFSV4OPENSHARE_DENY_NONE,
cp->nmp->nm_clientid,
4, lop->lo_id);
if (op->flags & O_CREAT) {
nfsm_buildf_xx(mb, bpos, "u", OTCREATE);
/* openflag4: mode */
nfsm_buildf_xx(mb, bpos, "u", CMUNCHECKED);
/* openflag4: createattrs... */
if (op->vap != NULL) {
if (op->flags & O_TRUNC)
op->vap->va_size = 0;
error = nfsm_v4build_attrs_xx(op->vap, mb, bpos);
if (error != 0)
return (error);
} else
nfsm_buildf_xx(mb, bpos, "uu", 0, 0);
} else
nfsm_buildf_xx(mb, bpos, "u", OTNOCREATE);
nfsm_buildf_xx(mb, bpos, "us", op->ctype,
op->cnp->cn_namelen, op->cnp->cn_nameptr);
cp->seqidused = cp->req_nops++;
cp->fcp = op->fcp;
return (error);
}
/*
* XXX
* - Wait on recovery
*/
int
nfsm_v4build_open_confirm_xx(struct nfs4_compound *cp, struct nfs4_oparg_open *op,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uou",
NFSV4OP_OPEN_CONFIRM,
NFSX_V4STATEID, op->fcp->stateid,
op->fcp->lop->lo_seqid);
cp->seqidused = cp->req_nops++;
cp->fcp = op->fcp;
return (0);
}
/*
* XXX
* - Wait on recovery
*/
int
nfsm_v4build_close_xx(struct nfs4_compound *cp, struct nfs4_fctx *fcp,
struct mbuf **mb, caddr_t *bpos)
{
struct nfs4_lowner *lop = fcp->lop;
nfsm_buildf_xx(mb, bpos, "uuo",
NFSV4OP_CLOSE,
lop->lo_seqid,
NFSX_V4STATEID, fcp->stateid);
cp->seqidused = cp->req_nops++;
cp->fcp = fcp;
return (0);
}
int
nfsm_v4build_access_xx(struct nfs4_compound *cp, struct nfs4_oparg_access *acc,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uu", NFSV4OP_ACCESS, acc->mode);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_read_xx(struct nfs4_compound *cp, struct nfs4_oparg_read *r,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uohu",
NFSV4OP_READ,
NFSX_V4STATEID, r->fcp->stateid,
r->off,
r->maxcnt);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_write_xx(struct nfs4_compound *cp, struct nfs4_oparg_write *w,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uohuu",
NFSV4OP_WRITE,
NFSX_V4STATEID, w->fcp->stateid,
w->off,
w->stable,
w->cnt);
cp->req_nops++;
return (nfsm_uiotombuf(w->uiop, mb, w->cnt, bpos));
}
int
nfsm_v4build_commit_xx(struct nfs4_compound *cp, struct nfs4_oparg_commit *c,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uhu", NFSV4OP_COMMIT, c->start, c->len);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_readdir_xx(struct nfs4_compound *cp, struct nfs4_oparg_readdir *r,
struct mbuf **mb, caddr_t *bpos)
{
int i;
nfsm_buildf_xx(mb, bpos, "uhouuu",
NFSV4OP_READDIR,
r->cookie,
sizeof(r->verf), r->verf,
r->cnt >> 4, /* meaningless "dircount" field */
r->cnt,
r->bm->bmlen);
for (i = 0; i < r->bm->bmlen; i++)
nfsm_buildf_xx(mb, bpos, "u", r->bm->bmval[i]);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_renew_xx(struct nfs4_compound *cp, uint64_t cid,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uh", NFSV4OP_RENEW, cid);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_create_xx(struct nfs4_compound *cp, struct nfs4_oparg_create *c,
struct mbuf **mb, caddr_t *bpos)
{
uint32_t t1;
nfsm_buildf_xx(mb, bpos, "uu", NFSV4OP_CREATE, c->type);
if (c->type == NFLNK)
/* XXX strlen */
nfsm_buildf_xx(mb, bpos, "s", strlen(c->linktext), c->linktext);
else if (c->type == NFCHR || c->type == NFBLK)
nfsm_buildf_xx(mb, bpos, "uu",
umajor(c->vap->va_rdev), uminor(c->vap->va_rdev));
/* Name */
nfsm_buildf_xx(mb, bpos, "s", c->namelen, c->name);
/* Attributes */
t1 = nfsm_v4build_attrs_xx(c->vap, mb, bpos);
if (t1 != 0)
return (t1);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_rename_xx(struct nfs4_compound *cp, struct nfs4_oparg_rename *r,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "uss", NFSV4OP_RENAME, r->fnamelen, r->fname,
r->tnamelen, r->tname);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_link_xx(struct nfs4_compound *cp, struct nfs4_oparg_link *l,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "us", NFSV4OP_LINK, l->namelen, l->name);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_remove_xx(struct nfs4_compound *cp, const char *name, u_int namelen,
struct mbuf **mb, caddr_t *bpos)
{
nfsm_buildf_xx(mb, bpos, "us", NFSV4OP_REMOVE, namelen, name);
cp->req_nops++;
return (0);
}
int
nfsm_v4build_attrs_xx(struct vattr *vap, struct mbuf **mb, caddr_t *bpos)
{
uint32_t *tl, *attrlenp, *bmvalp, len;
size_t siz;
tl = nfsm_build_xx(4 * NFSX_UNSIGNED, mb, bpos);
*tl++ = txdr_unsigned(2); /* bitmap length */
bmvalp = tl;
bzero(bmvalp, 8);
tl += 2;
attrlenp = tl;
len = 0;
if (vap->va_size != VNOVAL) {
tl = nfsm_build_xx(2 * NFSX_UNSIGNED, mb, bpos);
FA4_SET(FA4_SIZE, bmvalp);
txdr_hyper(vap->va_size, tl); tl += 2;
len += 2 * NFSX_UNSIGNED;
}
if (vap->va_mode != (u_short)VNOVAL) {
tl = nfsm_build_xx(NFSX_UNSIGNED, mb, bpos);
FA4_SET(FA4_MODE, bmvalp);
*tl++ = txdr_unsigned(vap->va_mode);
len += NFSX_UNSIGNED;
}
if (vap->va_uid != VNOVAL) {
int error;
char *name;
error = idmap_uid_to_name(vap->va_uid, &name, &siz);
if (error || name == NULL || siz == 0) {
/* XXX */
siz = sizeof("nobody") - 1;
tl = nfsm_build_xx(NFSX_UNSIGNED + nfsm_rndup(siz), mb,
bpos);
*tl++ = txdr_unsigned(siz);
bcopy("nobody", tl, siz);
len += NFSX_UNSIGNED + nfsm_rndup(siz);
} else {
tl = nfsm_build_xx(NFSX_UNSIGNED + nfsm_rndup(siz), mb,
bpos);
*tl++ = txdr_unsigned(siz);
bcopy(name, tl, siz);
len += NFSX_UNSIGNED + nfsm_rndup(siz);
}
FA4_SET(FA4_OWNER, bmvalp);
}
if (vap->va_gid != VNOVAL) {
int error;
char *name;
error = idmap_gid_to_name(vap->va_gid, &name, &siz);
if (error || name == NULL || siz == 0) {
/* XXX */
siz = sizeof("nogroup") - 1;
tl = nfsm_build_xx(NFSX_UNSIGNED + nfsm_rndup(siz), mb,
bpos);
*tl++ = txdr_unsigned(siz);
bcopy("nogroup", tl, siz);
len += NFSX_UNSIGNED + nfsm_rndup(siz);
} else {
tl = nfsm_build_xx(NFSX_UNSIGNED + nfsm_rndup(siz), mb,
bpos);
*tl++ = txdr_unsigned(siz);
bcopy(name, tl, siz);
len += NFSX_UNSIGNED + nfsm_rndup(siz);
}
FA4_SET(FA4_OWNER_GROUP, bmvalp);
}
if (vap->va_atime.tv_sec != VNOVAL) {
uint64_t val = vap->va_atime.tv_sec;
tl = nfsm_build_xx(4 * NFSX_UNSIGNED, mb, bpos);
FA4_SET(FA4_TIME_ACCESS_SET, bmvalp);
*tl++ = txdr_unsigned(THCLIENTTIME);
txdr_hyper(val, tl); tl += 2;
*tl++ = txdr_unsigned(vap->va_atime.tv_nsec);
len += 4 * NFSX_UNSIGNED;
}
if (vap->va_mtime.tv_sec != VNOVAL) {
uint64_t val = vap->va_mtime.tv_sec;
tl = nfsm_build_xx(4 * NFSX_UNSIGNED, mb, bpos);
FA4_SET(FA4_TIME_MODIFY_SET, bmvalp);
*tl++ = txdr_unsigned(THCLIENTTIME);
txdr_hyper(val, tl); tl += 2;
*tl++ = txdr_unsigned(vap->va_mtime.tv_nsec);
len += 4 * NFSX_UNSIGNED;
}
bmvalp[0] = txdr_unsigned(bmvalp[0]);
bmvalp[1] = txdr_unsigned(bmvalp[1]);
*attrlenp = txdr_unsigned(len);
return (0);
}
int
nfsm_v4dissect_compound_xx(struct nfs4_compound *cp, struct mbuf **md, caddr_t *dpos)
{
uint32_t taglen, t1, *tl;
tl = nfsm_dissect_xx(NFSX_UNSIGNED, md, dpos);
if (tl == NULL)
return (EBADRPC);
/* Reply status is handled by the RPC code */
taglen = fxdr_unsigned(uint32_t, *tl++);
t1 = nfsm_adv_xx(nfsm_rndup(taglen), md, dpos);
if (t1 != 0)
return (EBADRPC);
tl = nfsm_dissect_xx(NFSX_UNSIGNED, md, dpos);
if (tl == NULL)
return (EBADRPC);
cp->rep_nops = fxdr_unsigned(uint32_t, *tl++);
return (0);
}
int
nfsm_v4dissect_simple_xx(struct nfs4_compound *cp, uint32_t op,
uint32_t skipbytes, struct mbuf **md, caddr_t *dpos)
{
uint32_t t1, dop, status;
t1 = nfsm_dissectf_xx(md, dpos, "uu", &dop, &status);
if (t1 != 0)
return (t1);
if (dop != op || status != 0)
return (EBADRPC);
if (skipbytes > 0)
NFSM_ADV(nfsm_rndup(skipbytes));
return (0);
}
int
nfsm_v4dissect_getattr_xx(struct nfs4_compound *cp, struct nfs4_oparg_getattr *ga,
struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl;
tl = nfsm_dissect_xx(2 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL || fxdr_unsigned(uint32_t, *tl++) != NFSV4OP_GETATTR ||
*tl++ != 0)
return (EBADRPC);
return (nfsm_v4dissect_attrs_xx(&ga->fa, md, dpos));
}
int
nfsm_v4dissect_setattr_xx(struct nfs4_compound *cp, struct mbuf **md, caddr_t *dpos)
{
uint32_t t1, op, bmlen, status;
t1 = nfsm_dissectf_xx(md, dpos, "uu", &op, &status);
if (t1 != 0)
return (t1);
if (op != NFSV4OP_SETATTR || status != 0)
return (EBADRPC);
t1 = nfsm_dissectf_xx(md, dpos, "u", &bmlen);
if (t1 != 0)
return (t1);
return (nfsm_dissectf_xx(md, dpos, "k", bmlen << 2));
}
int
nfsm_v4dissect_getfh_xx(struct nfs4_compound *cp, struct nfs4_oparg_getfh *gfh,
struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl, len, xdrlen;
tl = nfsm_dissect_xx(2 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL || fxdr_unsigned(uint32_t, *tl++) != NFSV4OP_GETFH)
return (EBADRPC);
if (*tl++ != 0)
return (EBADRPC);
NFSM_DISSECT(NFSX_UNSIGNED);
len = fxdr_unsigned(uint32_t, *tl++);
if (len > NFSX_V4FH)
return (EBADRPC);
/* XXX integrate this into nfs_mtofh()? */
gfh->fh_len = len;
xdrlen = nfsm_rndup(len);
NFSM_DISSECT(xdrlen);
bcopy(tl, &gfh->fh_val, xdrlen);
return (0);
}
int
nfsm_v4dissect_setclientid_xx(struct nfs4_compound *cp,
struct nfs4_oparg_setclientid *sci, struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl;
tl = nfsm_dissect_xx(2 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL || fxdr_unsigned(uint32_t, *tl++) != NFSV4OP_SETCLIENTID)
return (EBADRPC);
/* Handle NFS4ERR_CLID_INUSE specially */
if (*tl++ != 0)
return (EBADRPC);
NFSM_DISSECT(2 * NFSX_UNSIGNED);
sci->clientid = fxdr_hyper(tl);
NFSM_DISSECT(nfsm_rndup(NFSX_V4VERF));
bcopy(tl, sci->verf, NFSX_V4VERF);
return (0);
}
int
nfsm_v4dissect_close_xx(struct nfs4_compound *cp, struct nfs4_fctx *fcp,
struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl, t1;
tl = nfsm_dissect_xx(2 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL || fxdr_unsigned(uint32_t, *tl++) != NFSV4OP_CLOSE ||
*tl++ != 0)
return (EBADRPC);
/* Copy stateid */
t1 = nfsm_dissectf_xx(md, dpos, "o", NFSX_V4STATEID, fcp->stateid);
if (t1 != 0)
return (t1);
return (0);
}
int
nfsm_v4dissect_access_xx(struct nfs4_compound *cp, struct nfs4_oparg_access *acc,
struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl;
tl = nfsm_dissect_xx(4 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL || fxdr_unsigned(uint32_t, *tl++) != NFSV4OP_ACCESS ||
*tl++ != 0)
return (EBADRPC);
acc->supported = fxdr_unsigned(uint32_t, *tl++);
acc->rmode = fxdr_unsigned(uint32_t, *tl++);
return (0);
}
int
nfsm_v4dissect_open_xx(struct nfs4_compound *cp, struct nfs4_oparg_open *op,
struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl, t1, bmlen, delegtype = ODNONE;
int error = 0;
nfsv4changeinfo cinfo;
struct nfs4_fctx *fcp = op->fcp;
tl = nfsm_dissect_xx(2 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL || fxdr_unsigned(uint32_t, *tl++) != NFSV4OP_OPEN ||
*tl++ != 0)
return (EBADRPC);
t1 = nfsm_dissectf_xx(md, dpos, "o", NFSX_V4STATEID, fcp->stateid);
if (t1 != 0)
return (t1);
error = nfsm_v4dissect_changeinfo_xx(&cinfo, md, dpos);
if (error != 0)
goto nfsmout;
NFSM_DISSECT(2 * NFSX_UNSIGNED);
op->rflags = fxdr_unsigned(uint32_t, *tl++);
bmlen = fxdr_unsigned(uint32_t, *tl++);
if (bmlen > 2) {
error = EBADRPC;
goto nfsmout;
}
/* Skip */
NFSM_ADV(nfsm_rndup(bmlen << 2));
NFSM_DISSECT(NFSX_UNSIGNED);
delegtype = fxdr_unsigned(uint32_t, *tl++);
switch (delegtype) {
case ODREAD:
case ODWRITE:
printf("nfs4: client delegation not yet supported\n");
error = EOPNOTSUPP;
goto nfsmout;
break;
case ODNONE:
default:
break;
}
nfsmout:
return (error);
}
int
nfsm_v4dissect_open_confirm_xx(struct nfs4_compound *cp, struct nfs4_oparg_open *op,
struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl;
tl = nfsm_dissect_xx(2 * NFSX_UNSIGNED, md, dpos);
if (tl == NULL || fxdr_unsigned(uint32_t, *tl++) != NFSV4OP_OPEN_CONFIRM ||
*tl++ != 0)
return (EBADRPC);
return nfsm_dissectf_xx(md, dpos, "o", NFSX_V4STATEID, op->fcp->stateid);
}
int
nfsm_v4dissect_read_xx(struct nfs4_compound *cp, struct nfs4_oparg_read *r,
struct mbuf **md, caddr_t *dpos)
{
uint32_t op, status, t1;
t1 = nfsm_dissectf_xx(md, dpos, "uu", &op, &status);
if (t1 != 0)
return (t1);
if (op != NFSV4OP_READ || status != 0)
return (EBADRPC);
t1 = nfsm_dissectf_xx(md, dpos, "uu", &r->eof, &r->retlen);
if (t1 != 0)
return (t1);
return (nfsm_mbuftouio(md, r->uiop, r->retlen, dpos));
}
int
nfsm_v4dissect_write_xx(struct nfs4_compound *cp, struct nfs4_oparg_write *w,
struct mbuf **md, caddr_t *dpos)
{
uint32_t op, status, t1;
t1 = nfsm_dissectf_xx(md, dpos, "uu", &op, &status);
if (t1 != 0)
return (t1);
if (op != NFSV4OP_WRITE || status != 0)
return (EBADRPC);
return (nfsm_dissectf_xx(md, dpos, "uuo", &w->retlen, &w->committed,
NFSX_V4VERF, w->wverf));
}
int
nfsm_v4dissect_commit_xx(struct nfs4_compound *cp, struct nfs4_oparg_commit *c,
struct mbuf **md, caddr_t *dpos)
{
uint32_t t1, op, status;
t1 = nfsm_dissectf_xx(md, dpos, "uu", &op, &status);
if (t1 != 0)
return (t1);
if (op != NFSV4OP_COMMIT || status != 0)
return (EBADRPC);
return (nfsm_dissectf_xx(md, dpos, "o", NFSX_V4VERF, c->verf));
}
int
nfsm_v4dissect_create_xx(struct nfs4_compound *cp, struct nfs4_oparg_create *c,
struct mbuf **md, caddr_t *dpos)
{
uint32_t t1, *tl, op, status, bmlen;
nfsv4changeinfo ci;
t1 = nfsm_dissectf_xx(md, dpos, "uu", &op, &status);
if (t1 != 0)
return (t1);
if (op != NFSV4OP_CREATE || status != 0)
return (EBADRPC);
/* Just throw this away for now */
t1 = nfsm_v4dissect_changeinfo_xx(&ci, md, dpos);
if (t1 != 0)
return (t1);
/* Throw this away too */
NFSM_DISSECT(NFSX_UNSIGNED);
bmlen = fxdr_unsigned(uint32_t, *tl++);
NFSM_DISSECT(bmlen * NFSX_UNSIGNED);
tl += bmlen;
return 0;
}
int
nfsm_v4dissect_readlink_xx(struct nfs4_compound *cp, struct uio *uiop,
struct mbuf **md, caddr_t *dpos)
{
uint32_t t1, *tl, op, status, linklen;
t1 = nfsm_dissectf_xx(md, dpos, "uu", &op, &status);
if (t1 != 0)
return (t1);
if (op != NFSV4OP_READLINK || status != 0)
return (EBADRPC);
/* Do this one manually for careful checking of sizes. */
NFSM_DISSECT(NFSX_UNSIGNED);
linklen = fxdr_unsigned(uint32_t, *tl++);
if (linklen <= 0)
return (EBADRPC);
return (nfsm_mbuftouio(md, uiop, MIN(linklen, uiop->uio_resid), dpos));
}
int
nfsm_v4dissect_changeinfo_xx(nfsv4changeinfo *ci,
struct mbuf **md, caddr_t *dpos)
{
uint32_t *tl;
NFSM_DISSECT(5 * NFSX_UNSIGNED);
ci->ciatomic = fxdr_unsigned(uint32_t, *tl++);
ci->cibefore = fxdr_hyper(tl); tl += 2;
ci->ciafter = fxdr_hyper(tl); tl += 2;
return (0);
}
int
nfsm_v4dissect_attrs_xx(struct nfsv4_fattr *fa, struct mbuf **md, caddr_t *dpos)
{
uint32_t t1, *tl, bmlen, bmval[2], attrlen, len = 0;
/* Bitmap length + value */
NFSM_DISSECT(NFSX_UNSIGNED);
bmlen = fxdr_unsigned(uint32_t, *tl++);
if (bmlen > 2)
return (EBADRPC);
if (bmlen == 0)
return (0);
NFSM_DISSECT(nfsm_rndup(bmlen << 2) + NFSX_UNSIGNED);
bmval[0] = bmlen > 0 ? fxdr_unsigned(uint32_t, *tl++) : 0;
bmval[1] = bmlen > 1 ? fxdr_unsigned(uint32_t, *tl++) : 0;
/* Attribute length */
attrlen = fxdr_unsigned(uint32_t, *tl++);
/*
* XXX check for correct (<=) attributes mask return from
* server. need to pass this in.
*/
if (FA4_ISSET(FA4_TYPE, bmval)) {
/* overflow check */
NFSM_DISSECT(NFSX_UNSIGNED);
fa->fa4_type = fxdr_unsigned(uint32_t, *tl++);
fa->fa4_valid |= FA4V_TYPE;
len += NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_CHANGE, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_changeid = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_CHANGEID;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_SIZE, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_size = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_SIZE;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_FSID, bmval)) {
NFSM_DISSECT(4 * NFSX_UNSIGNED);
fa->fa4_fsid_major = fxdr_hyper(tl); tl += 2;
fa->fa4_fsid_minor = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_SIZE;
len += 4 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_LEASE_TIME, bmval)) {
NFSM_DISSECT(NFSX_UNSIGNED);
fa->fa4_lease_time = fxdr_unsigned(uint32_t, *tl++);
fa->fa4_valid |= FA4V_LEASE_TIME;
len += NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_RDATTR_ERROR, bmval)) {
/* ignore for now; we only ask for it so the compound won't fail */
NFSM_DISSECT(NFSX_UNSIGNED);
tl++;
len += NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_FILEID, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_fileid = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_FILEID;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_FILES_FREE, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_ffree = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_FFREE;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_FILES_TOTAL, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_ftotal = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_FTOTAL;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_MAXFILESIZE, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_maxfilesize = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_MAXFILESIZE;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_MAXNAME, bmval)) {
NFSM_DISSECT(NFSX_UNSIGNED);
fa->fa4_maxname = fxdr_unsigned(uint32_t, *tl++);
fa->fa4_valid |= FA4V_MAXNAME;
len += NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_MAXREAD, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_maxread = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_MAXREAD;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_MAXWRITE, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_maxwrite = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_MAXWRITE;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_MODE, bmval)) {
NFSM_DISSECT(NFSX_UNSIGNED);
fa->fa4_mode = fxdr_unsigned(mode_t, *tl++);
fa->fa4_valid |= FA4V_MODE;
len += NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_NUMLINKS, bmval)) {
NFSM_DISSECT(NFSX_UNSIGNED);
fa->fa4_nlink = fxdr_unsigned(nlink_t, *tl++);
fa->fa4_valid |= FA4V_NLINK;
len += NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_OWNER, bmval)) {
uint32_t ownerlen;
int error;
NFSM_DISSECT(NFSX_UNSIGNED);
ownerlen = fxdr_unsigned(uint32_t, *tl++);
NFSM_DISSECT(nfsm_rndup(ownerlen));
error = idmap_name_to_uid((char *)tl, ownerlen, &fa->fa4_uid);
if (error)
fa->fa4_uid = -2;
fa->fa4_valid |= FA4V_UID;
len += NFSX_UNSIGNED + nfsm_rndup(ownerlen);
}
if (FA4_ISSET(FA4_OWNER_GROUP, bmval)) {
uint32_t ownergrouplen;
int error;
NFSM_DISSECT(NFSX_UNSIGNED);
ownergrouplen = fxdr_unsigned(uint32_t, *tl++);
NFSM_DISSECT(nfsm_rndup(ownergrouplen));
error = idmap_name_to_gid((char *)tl, ownergrouplen, &fa->fa4_gid);
if (error)
fa->fa4_gid = -2;
fa->fa4_valid |= FA4V_GID;
len += NFSX_UNSIGNED + nfsm_rndup(ownergrouplen);
}
if (FA4_ISSET(FA4_RAWDEV, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_rdev_major = fxdr_unsigned(uint32_t, *tl++);
fa->fa4_rdev_minor = fxdr_unsigned(uint32_t, *tl++);
fa->fa4_valid |= FA4V_RDEV;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_SPACE_AVAIL, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_savail = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_SAVAIL;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_SPACE_FREE, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_sfree = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_SFREE;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_SPACE_TOTAL, bmval)) {
NFSM_DISSECT(2 * NFSX_UNSIGNED);
fa->fa4_stotal = fxdr_hyper(tl);
fa->fa4_valid |= FA4V_STOTAL;
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_SPACE_USED, bmval)) {
NFSM_ADV(2 * NFSX_UNSIGNED);
len += 2 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_TIME_ACCESS, bmval)) {
NFSM_MTOTIME(fa->fa4_atime);
fa->fa4_valid |= FA4V_ATIME;
len += 3 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_TIME_CREATE, bmval)) {
NFSM_MTOTIME(fa->fa4_ctime);
fa->fa4_valid |= FA4V_CTIME;
len += 3 * NFSX_UNSIGNED;
}
if (FA4_ISSET(FA4_TIME_MODIFY, bmval)) {
NFSM_MTOTIME(fa->fa4_mtime);
fa->fa4_valid |= FA4V_MTIME;
len += 3 * NFSX_UNSIGNED;
}
if (len != attrlen)
return (EBADRPC);
return (0);
}
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