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freebsd-nq/sys/fs/nfsserver/nfs_nfsdserv.c
Rick Macklem 1f54e596ad Make the size of the hash tables used by the NFSv4 server tunable. 
No appreciable change in performance was observed after increasing
the sizes of these tables and then testing with a single client.
However, there was an email that indicated high CPU overheads for
a heavily loaded NFSv4 and it is hoped that increasing the sizes
of the hash tables via these tunables might help.
The tables remain the same size by default.

Differential Revision:	https://reviews.freebsd.org/D2596
MFC after:	2 weeks
2015-05-27 22:00:05 +00:00

4099 lines
112 KiB
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/*-
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* nfs version 2, 3 and 4 server calls to vnode ops
* - these routines generally have 3 phases
* 1 - break down and validate rpc request in mbuf list
* 2 - do the vnode ops for the request, usually by calling a nfsvno_XXX()
* function in nfsd_port.c
* 3 - build the rpc reply in an mbuf list
* For nfsv4, these functions are called for each Op within the Compound RPC.
*/
#ifndef APPLEKEXT
#include <fs/nfs/nfsport.h>
/* Global vars */
extern u_int32_t newnfs_false, newnfs_true;
extern enum vtype nv34tov_type[8];
extern struct timeval nfsboottime;
extern int nfs_rootfhset;
extern int nfsrv_enable_crossmntpt;
extern int nfsrv_statehashsize;
#endif /* !APPLEKEXT */
static int nfs_async = 0;
SYSCTL_DECL(_vfs_nfsd);
SYSCTL_INT(_vfs_nfsd, OID_AUTO, async, CTLFLAG_RW, &nfs_async, 0,
"Tell client that writes were synced even though they were not");
/*
* This list defines the GSS mechanisms supported.
* (Don't ask me how you get these strings from the RFC stuff like
* iso(1), org(3)... but someone did it, so I don't need to know.)
*/
static struct nfsgss_mechlist nfsgss_mechlist[] = {
{ 9, "\052\206\110\206\367\022\001\002\002", 11 },
{ 0, "", 0 },
};
/* local functions */
static void nfsrvd_symlinksub(struct nfsrv_descript *nd, struct nameidata *ndp,
struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
int *diraft_retp, nfsattrbit_t *attrbitp,
NFSACL_T *aclp, NFSPROC_T *p, struct nfsexstuff *exp, char *pathcp,
int pathlen);
static void nfsrvd_mkdirsub(struct nfsrv_descript *nd, struct nameidata *ndp,
struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
int *diraft_retp, nfsattrbit_t *attrbitp, NFSACL_T *aclp,
NFSPROC_T *p, struct nfsexstuff *exp);
/*
* nfs access service (not a part of NFS V2)
*/
APPLESTATIC int
nfsrvd_access(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
{
u_int32_t *tl;
int getret, error = 0;
struct nfsvattr nva;
u_int32_t testmode, nfsmode, supported = 0;
accmode_t deletebit;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, 1, &nva);
goto out;
}
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
nfsmode = fxdr_unsigned(u_int32_t, *tl);
if ((nd->nd_flag & ND_NFSV4) &&
(nfsmode & ~(NFSACCESS_READ | NFSACCESS_LOOKUP |
NFSACCESS_MODIFY | NFSACCESS_EXTEND | NFSACCESS_DELETE |
NFSACCESS_EXECUTE))) {
nd->nd_repstat = NFSERR_INVAL;
vput(vp);
goto out;
}
if (nfsmode & NFSACCESS_READ) {
supported |= NFSACCESS_READ;
if (nfsvno_accchk(vp, VREAD, nd->nd_cred, exp, p,
NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
nfsmode &= ~NFSACCESS_READ;
}
if (nfsmode & NFSACCESS_MODIFY) {
supported |= NFSACCESS_MODIFY;
if (nfsvno_accchk(vp, VWRITE, nd->nd_cred, exp, p,
NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
nfsmode &= ~NFSACCESS_MODIFY;
}
if (nfsmode & NFSACCESS_EXTEND) {
supported |= NFSACCESS_EXTEND;
if (nfsvno_accchk(vp, VWRITE | VAPPEND, nd->nd_cred, exp, p,
NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
nfsmode &= ~NFSACCESS_EXTEND;
}
if (nfsmode & NFSACCESS_DELETE) {
supported |= NFSACCESS_DELETE;
if (vp->v_type == VDIR)
deletebit = VDELETE_CHILD;
else
deletebit = VDELETE;
if (nfsvno_accchk(vp, deletebit, nd->nd_cred, exp, p,
NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
nfsmode &= ~NFSACCESS_DELETE;
}
if (vnode_vtype(vp) == VDIR)
testmode = NFSACCESS_LOOKUP;
else
testmode = NFSACCESS_EXECUTE;
if (nfsmode & testmode) {
supported |= (nfsmode & testmode);
if (nfsvno_accchk(vp, VEXEC, nd->nd_cred, exp, p,
NFSACCCHK_NOOVERRIDE, NFSACCCHK_VPISLOCKED, &supported))
nfsmode &= ~testmode;
}
nfsmode &= supported;
if (nd->nd_flag & ND_NFSV3) {
getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
nfsrv_postopattr(nd, getret, &nva);
}
vput(vp);
if (nd->nd_flag & ND_NFSV4) {
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(supported);
} else
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl = txdr_unsigned(nfsmode);
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs getattr service
*/
APPLESTATIC int
nfsrvd_getattr(struct nfsrv_descript *nd, int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
struct nfsvattr nva;
fhandle_t fh;
int at_root = 0, error = 0, supports_nfsv4acls;
struct nfsreferral *refp;
nfsattrbit_t attrbits, tmpbits;
struct mount *mp;
struct vnode *tvp = NULL;
struct vattr va;
uint64_t mounted_on_fileno = 0;
accmode_t accmode;
if (nd->nd_repstat)
goto out;
if (nd->nd_flag & ND_NFSV4) {
error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
if (error) {
vput(vp);
goto out;
}
/*
* Check for a referral.
*/
refp = nfsv4root_getreferral(vp, NULL, 0);
if (refp != NULL) {
(void) nfsrv_putreferralattr(nd, &attrbits, refp, 1,
&nd->nd_repstat);
vput(vp);
goto out;
}
if (nd->nd_repstat == 0) {
accmode = 0;
NFSSET_ATTRBIT(&tmpbits, &attrbits);
/*
* GETATTR with write-only attr time_access_set and time_modify_set
* should return NFS4ERR_INVAL.
*/
if (NFSISSET_ATTRBIT(&tmpbits, NFSATTRBIT_TIMEACCESSSET) ||
NFSISSET_ATTRBIT(&tmpbits, NFSATTRBIT_TIMEMODIFYSET)){
error = NFSERR_INVAL;
vput(vp);
goto out;
}
if (NFSISSET_ATTRBIT(&tmpbits, NFSATTRBIT_ACL)) {
NFSCLRBIT_ATTRBIT(&tmpbits, NFSATTRBIT_ACL);
accmode |= VREAD_ACL;
}
if (NFSNONZERO_ATTRBIT(&tmpbits))
accmode |= VREAD_ATTRIBUTES;
if (accmode != 0)
nd->nd_repstat = nfsvno_accchk(vp, accmode,
nd->nd_cred, exp, p, NFSACCCHK_NOOVERRIDE,
NFSACCCHK_VPISLOCKED, NULL);
}
}
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
if (!nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV4) {
if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_FILEHANDLE))
nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
if (!nd->nd_repstat)
nd->nd_repstat = nfsrv_checkgetattr(nd, vp,
&nva, &attrbits, nd->nd_cred, p);
if (nd->nd_repstat == 0) {
supports_nfsv4acls = nfs_supportsnfsv4acls(vp);
mp = vp->v_mount;
if (nfsrv_enable_crossmntpt != 0 &&
vp->v_type == VDIR &&
(vp->v_vflag & VV_ROOT) != 0 &&
vp != rootvnode) {
tvp = mp->mnt_vnodecovered;
VREF(tvp);
at_root = 1;
} else
at_root = 0;
vfs_ref(mp);
NFSVOPUNLOCK(vp, 0);
if (at_root != 0) {
if ((nd->nd_repstat =
NFSVOPLOCK(tvp, LK_SHARED)) == 0) {
nd->nd_repstat = VOP_GETATTR(
tvp, &va, nd->nd_cred);
vput(tvp);
} else
vrele(tvp);
if (nd->nd_repstat == 0)
mounted_on_fileno = (uint64_t)
va.va_fileid;
else
at_root = 0;
}
if (nd->nd_repstat == 0)
nd->nd_repstat = vfs_busy(mp, 0);
vfs_rel(mp);
if (nd->nd_repstat == 0) {
(void)nfsvno_fillattr(nd, mp, vp, &nva,
&fh, 0, &attrbits, nd->nd_cred, p,
isdgram, 1, supports_nfsv4acls,
at_root, mounted_on_fileno);
vfs_unbusy(mp);
}
vrele(vp);
} else
vput(vp);
} else {
nfsrv_fillattr(nd, &nva);
vput(vp);
}
} else {
vput(vp);
}
out:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs setattr service
*/
APPLESTATIC int
nfsrvd_setattr(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
{
struct nfsvattr nva, nva2;
u_int32_t *tl;
int preat_ret = 1, postat_ret = 1, gcheck = 0, error = 0;
struct timespec guard = { 0, 0 };
nfsattrbit_t attrbits, retbits;
nfsv4stateid_t stateid;
NFSACL_T *aclp = NULL;
if (nd->nd_repstat) {
nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva);
goto out;
}
#ifdef NFS4_ACL_EXTATTR_NAME
aclp = acl_alloc(M_WAITOK);
aclp->acl_cnt = 0;
#endif
NFSVNO_ATTRINIT(&nva);
NFSZERO_ATTRBIT(&retbits);
if (nd->nd_flag & ND_NFSV4) {
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl,(caddr_t)stateid.other,NFSX_STATEIDOTHER);
}
error = nfsrv_sattr(nd, vp, &nva, &attrbits, aclp, p);
if (error)
goto nfsmout;
preat_ret = nfsvno_getattr(vp, &nva2, nd->nd_cred, p, 1);
if (!nd->nd_repstat)
nd->nd_repstat = preat_ret;
if (nd->nd_flag & ND_NFSV3) {
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
gcheck = fxdr_unsigned(int, *tl);
if (gcheck) {
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
fxdr_nfsv3time(tl, &guard);
}
if (!nd->nd_repstat && gcheck &&
(nva2.na_ctime.tv_sec != guard.tv_sec ||
nva2.na_ctime.tv_nsec != guard.tv_nsec))
nd->nd_repstat = NFSERR_NOT_SYNC;
if (nd->nd_repstat) {
vput(vp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva);
goto out;
}
} else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4))
nd->nd_repstat = nfsrv_checkuidgid(nd, &nva);
/*
* Now that we have all the fields, lets do it.
* If the size is being changed write access is required, otherwise
* just check for a read only file system.
*/
if (!nd->nd_repstat) {
if (NFSVNO_NOTSETSIZE(&nva)) {
if (NFSVNO_EXRDONLY(exp) ||
(vfs_flags(vnode_mount(vp)) & MNT_RDONLY))
nd->nd_repstat = EROFS;
} else {
if (vnode_vtype(vp) != VREG)
nd->nd_repstat = EINVAL;
else if (nva2.na_uid != nd->nd_cred->cr_uid ||
NFSVNO_EXSTRICTACCESS(exp))
nd->nd_repstat = nfsvno_accchk(vp,
VWRITE, nd->nd_cred, exp, p,
NFSACCCHK_NOOVERRIDE,
NFSACCCHK_VPISLOCKED, NULL);
}
}
if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4))
nd->nd_repstat = nfsrv_checksetattr(vp, nd, &stateid,
&nva, &attrbits, exp, p);
if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4)) {
/*
* For V4, try setting the attrbutes in sets, so that the
* reply bitmap will be correct for an error case.
*/
if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNER) ||
NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP)) {
NFSVNO_ATTRINIT(&nva2);
NFSVNO_SETATTRVAL(&nva2, uid, nva.na_uid);
NFSVNO_SETATTRVAL(&nva2, gid, nva.na_gid);
nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
exp);
if (!nd->nd_repstat) {
if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNER))
NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_OWNER);
if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP))
NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_OWNERGROUP);
}
}
if (!nd->nd_repstat &&
NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_SIZE)) {
NFSVNO_ATTRINIT(&nva2);
NFSVNO_SETATTRVAL(&nva2, size, nva.na_size);
nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
exp);
if (!nd->nd_repstat)
NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_SIZE);
}
if (!nd->nd_repstat &&
(NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET) ||
NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET))) {
NFSVNO_ATTRINIT(&nva2);
NFSVNO_SETATTRVAL(&nva2, atime, nva.na_atime);
NFSVNO_SETATTRVAL(&nva2, mtime, nva.na_mtime);
if (nva.na_vaflags & VA_UTIMES_NULL) {
nva2.na_vaflags |= VA_UTIMES_NULL;
NFSVNO_SETACTIVE(&nva2, vaflags);
}
nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
exp);
if (!nd->nd_repstat) {
if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET))
NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMEACCESSSET);
if (NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET))
NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_TIMEMODIFYSET);
}
}
if (!nd->nd_repstat &&
NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_MODE)) {
NFSVNO_ATTRINIT(&nva2);
NFSVNO_SETATTRVAL(&nva2, mode, nva.na_mode);
nd->nd_repstat = nfsvno_setattr(vp, &nva2, nd->nd_cred, p,
exp);
if (!nd->nd_repstat)
NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_MODE);
}
#ifdef NFS4_ACL_EXTATTR_NAME
if (!nd->nd_repstat && aclp->acl_cnt > 0 &&
NFSISSET_ATTRBIT(&attrbits, NFSATTRBIT_ACL)) {
nd->nd_repstat = nfsrv_setacl(vp, aclp, nd->nd_cred, p);
if (!nd->nd_repstat)
NFSSETBIT_ATTRBIT(&retbits, NFSATTRBIT_ACL);
}
#endif
} else if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_setattr(vp, &nva, nd->nd_cred, p,
exp);
}
if (nd->nd_flag & (ND_NFSV2 | ND_NFSV3)) {
postat_ret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
if (!nd->nd_repstat)
nd->nd_repstat = postat_ret;
}
vput(vp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, preat_ret, &nva2, postat_ret, &nva);
else if (nd->nd_flag & ND_NFSV4)
(void) nfsrv_putattrbit(nd, &retbits);
else if (!nd->nd_repstat)
nfsrv_fillattr(nd, &nva);
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
if (nd->nd_flag & ND_NFSV4) {
/*
* For all nd_repstat, the V4 reply includes a bitmap,
* even NFSERR_BADXDR, which is what this will end up
* returning.
*/
(void) nfsrv_putattrbit(nd, &retbits);
}
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs lookup rpc
* (Also performs lookup parent for v4)
*/
APPLESTATIC int
nfsrvd_lookup(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
struct nfsexstuff *exp)
{
struct nameidata named;
vnode_t vp, dirp = NULL;
int error = 0, dattr_ret = 1;
struct nfsvattr nva, dattr;
char *bufp;
u_long *hashp;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, dattr_ret, &dattr);
goto out;
}
/*
* For some reason, if dp is a symlink, the error
* returned is supposed to be NFSERR_SYMLINK and not NFSERR_NOTDIR.
*/
if (dp->v_type == VLNK && (nd->nd_flag & ND_NFSV4)) {
nd->nd_repstat = NFSERR_SYMLINK;
vrele(dp);
goto out;
}
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP,
LOCKLEAF | SAVESTART);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error) {
vrele(dp);
nfsvno_relpathbuf(&named);
goto out;
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
} else {
vrele(dp);
nfsvno_relpathbuf(&named);
}
if (nd->nd_repstat) {
if (dirp) {
if (nd->nd_flag & ND_NFSV3)
dattr_ret = nfsvno_getattr(dirp, &dattr,
nd->nd_cred, p, 0);
vrele(dirp);
}
if (nd->nd_flag & ND_NFSV3)
nfsrv_postopattr(nd, dattr_ret, &dattr);
goto out;
}
if (named.ni_startdir)
vrele(named.ni_startdir);
nfsvno_relpathbuf(&named);
vp = named.ni_vp;
if ((nd->nd_flag & ND_NFSV4) != 0 && !NFSVNO_EXPORTED(exp) &&
vp->v_type != VDIR && vp->v_type != VLNK)
/*
* Only allow lookup of VDIR and VLNK for traversal of
* non-exported volumes during NFSv4 mounting.
*/
nd->nd_repstat = ENOENT;
if (nd->nd_repstat == 0)
nd->nd_repstat = nfsvno_getfh(vp, fhp, p);
if (!(nd->nd_flag & ND_NFSV4) && !nd->nd_repstat)
nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
if (vpp != NULL && nd->nd_repstat == 0)
*vpp = vp;
else
vput(vp);
if (dirp) {
if (nd->nd_flag & ND_NFSV3)
dattr_ret = nfsvno_getattr(dirp, &dattr, nd->nd_cred,
p, 0);
vrele(dirp);
}
if (nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV3)
nfsrv_postopattr(nd, dattr_ret, &dattr);
goto out;
}
if (nd->nd_flag & ND_NFSV2) {
(void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 0);
nfsrv_fillattr(nd, &nva);
} else if (nd->nd_flag & ND_NFSV3) {
(void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 0);
nfsrv_postopattr(nd, 0, &nva);
nfsrv_postopattr(nd, dattr_ret, &dattr);
}
out:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs readlink service
*/
APPLESTATIC int
nfsrvd_readlink(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
mbuf_t mp = NULL, mpend = NULL;
int getret = 1, len;
struct nfsvattr nva;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, getret, &nva);
goto out;
}
if (vnode_vtype(vp) != VLNK) {
if (nd->nd_flag & ND_NFSV2)
nd->nd_repstat = ENXIO;
else
nd->nd_repstat = EINVAL;
}
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_readlink(vp, nd->nd_cred, p,
&mp, &mpend, &len);
if (nd->nd_flag & ND_NFSV3)
getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
vput(vp);
if (nd->nd_flag & ND_NFSV3)
nfsrv_postopattr(nd, getret, &nva);
if (nd->nd_repstat)
goto out;
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl = txdr_unsigned(len);
mbuf_setnext(nd->nd_mb, mp);
nd->nd_mb = mpend;
nd->nd_bpos = NFSMTOD(mpend, caddr_t) + mbuf_len(mpend);
out:
NFSEXITCODE2(0, nd);
return (0);
}
/*
* nfs read service
*/
APPLESTATIC int
nfsrvd_read(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
{
u_int32_t *tl;
int error = 0, cnt, getret = 1, reqlen, eof = 0;
mbuf_t m2, m3;
struct nfsvattr nva;
off_t off = 0x0;
struct nfsstate st, *stp = &st;
struct nfslock lo, *lop = &lo;
nfsv4stateid_t stateid;
nfsquad_t clientid;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, getret, &nva);
goto out;
}
if (nd->nd_flag & ND_NFSV2) {
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
off = (off_t)fxdr_unsigned(u_int32_t, *tl++);
reqlen = fxdr_unsigned(int, *tl);
} else if (nd->nd_flag & ND_NFSV3) {
NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
off = fxdr_hyper(tl);
tl += 2;
reqlen = fxdr_unsigned(int, *tl);
} else {
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 3*NFSX_UNSIGNED);
reqlen = fxdr_unsigned(int, *(tl + 6));
}
if (reqlen > NFS_SRVMAXDATA(nd)) {
reqlen = NFS_SRVMAXDATA(nd);
} else if (reqlen < 0) {
error = EBADRPC;
goto nfsmout;
}
if (nd->nd_flag & ND_NFSV4) {
stp->ls_flags = (NFSLCK_CHECK | NFSLCK_READACCESS);
lop->lo_flags = NFSLCK_READ;
stp->ls_ownerlen = 0;
stp->ls_op = NULL;
stp->ls_uid = nd->nd_cred->cr_uid;
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
clientid.lval[0] = stp->ls_stateid.other[0] = *tl++;
clientid.lval[1] = stp->ls_stateid.other[1] = *tl++;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK1 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
stp->ls_stateid.other[2] = *tl++;
off = fxdr_hyper(tl);
lop->lo_first = off;
tl += 2;
lop->lo_end = off + reqlen;
/*
* Paranoia, just in case it wraps around.
*/
if (lop->lo_end < off)
lop->lo_end = NFS64BITSSET;
}
if (vnode_vtype(vp) != VREG) {
if (nd->nd_flag & ND_NFSV3)
nd->nd_repstat = EINVAL;
else
nd->nd_repstat = (vnode_vtype(vp) == VDIR) ? EISDIR :
EINVAL;
}
getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
if (!nd->nd_repstat)
nd->nd_repstat = getret;
if (!nd->nd_repstat &&
(nva.na_uid != nd->nd_cred->cr_uid ||
NFSVNO_EXSTRICTACCESS(exp))) {
nd->nd_repstat = nfsvno_accchk(vp, VREAD,
nd->nd_cred, exp, p,
NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
if (nd->nd_repstat)
nd->nd_repstat = nfsvno_accchk(vp, VEXEC,
nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
NFSACCCHK_VPISLOCKED, NULL);
}
if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat)
nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid,
&stateid, exp, nd, p);
if (nd->nd_repstat) {
vput(vp);
if (nd->nd_flag & ND_NFSV3)
nfsrv_postopattr(nd, getret, &nva);
goto out;
}
if (off >= nva.na_size) {
cnt = 0;
eof = 1;
} else if (reqlen == 0)
cnt = 0;
else if ((off + reqlen) >= nva.na_size) {
cnt = nva.na_size - off;
eof = 1;
} else
cnt = reqlen;
m3 = NULL;
if (cnt > 0) {
nd->nd_repstat = nfsvno_read(vp, off, cnt, nd->nd_cred, p,
&m3, &m2);
if (!(nd->nd_flag & ND_NFSV4)) {
getret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
if (!nd->nd_repstat)
nd->nd_repstat = getret;
}
if (nd->nd_repstat) {
vput(vp);
if (m3)
mbuf_freem(m3);
if (nd->nd_flag & ND_NFSV3)
nfsrv_postopattr(nd, getret, &nva);
goto out;
}
}
vput(vp);
if (nd->nd_flag & ND_NFSV2) {
nfsrv_fillattr(nd, &nva);
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
} else {
if (nd->nd_flag & ND_NFSV3) {
nfsrv_postopattr(nd, getret, &nva);
NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(cnt);
} else
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
if (eof)
*tl++ = newnfs_true;
else
*tl++ = newnfs_false;
}
*tl = txdr_unsigned(cnt);
if (m3) {
mbuf_setnext(nd->nd_mb, m3);
nd->nd_mb = m2;
nd->nd_bpos = NFSMTOD(m2, caddr_t) + mbuf_len(m2);
}
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs write service
*/
APPLESTATIC int
nfsrvd_write(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
{
int i, cnt;
u_int32_t *tl;
mbuf_t mp;
struct nfsvattr nva, forat;
int aftat_ret = 1, retlen, len, error = 0, forat_ret = 1;
int stable = NFSWRITE_FILESYNC;
off_t off;
struct nfsstate st, *stp = &st;
struct nfslock lo, *lop = &lo;
nfsv4stateid_t stateid;
nfsquad_t clientid;
if (nd->nd_repstat) {
nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva);
goto out;
}
if (nd->nd_flag & ND_NFSV2) {
NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
off = (off_t)fxdr_unsigned(u_int32_t, *++tl);
tl += 2;
retlen = len = fxdr_unsigned(int32_t, *tl);
} else if (nd->nd_flag & ND_NFSV3) {
NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
off = fxdr_hyper(tl);
tl += 3;
stable = fxdr_unsigned(int, *tl++);
retlen = len = fxdr_unsigned(int32_t, *tl);
} else {
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 4 * NFSX_UNSIGNED);
stp->ls_flags = (NFSLCK_CHECK | NFSLCK_WRITEACCESS);
lop->lo_flags = NFSLCK_WRITE;
stp->ls_ownerlen = 0;
stp->ls_op = NULL;
stp->ls_uid = nd->nd_cred->cr_uid;
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
clientid.lval[0] = stp->ls_stateid.other[0] = *tl++;
clientid.lval[1] = stp->ls_stateid.other[1] = *tl++;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK2 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
stp->ls_stateid.other[2] = *tl++;
off = fxdr_hyper(tl);
lop->lo_first = off;
tl += 2;
stable = fxdr_unsigned(int, *tl++);
retlen = len = fxdr_unsigned(int32_t, *tl);
lop->lo_end = off + len;
/*
* Paranoia, just in case it wraps around, which shouldn't
* ever happen anyhow.
*/
if (lop->lo_end < lop->lo_first)
lop->lo_end = NFS64BITSSET;
}
/*
* Loop through the mbuf chain, counting how many mbufs are a
* part of this write operation, so the iovec size is known.
*/
cnt = 0;
mp = nd->nd_md;
i = NFSMTOD(mp, caddr_t) + mbuf_len(mp) - nd->nd_dpos;
while (len > 0) {
if (i > 0) {
len -= i;
cnt++;
}
mp = mbuf_next(mp);
if (!mp) {
if (len > 0) {
error = EBADRPC;
goto nfsmout;
}
} else
i = mbuf_len(mp);
}
if (retlen > NFS_SRVMAXIO || retlen < 0)
nd->nd_repstat = EIO;
if (vnode_vtype(vp) != VREG && !nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV3)
nd->nd_repstat = EINVAL;
else
nd->nd_repstat = (vnode_vtype(vp) == VDIR) ? EISDIR :
EINVAL;
}
forat_ret = nfsvno_getattr(vp, &forat, nd->nd_cred, p, 1);
if (!nd->nd_repstat)
nd->nd_repstat = forat_ret;
if (!nd->nd_repstat &&
(forat.na_uid != nd->nd_cred->cr_uid ||
NFSVNO_EXSTRICTACCESS(exp)))
nd->nd_repstat = nfsvno_accchk(vp, VWRITE,
nd->nd_cred, exp, p,
NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid,
&stateid, exp, nd, p);
}
if (nd->nd_repstat) {
vput(vp);
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva);
goto out;
}
/*
* For NFS Version 2, it is not obvious what a write of zero length
* should do, but I might as well be consistent with Version 3,
* which is to return ok so long as there are no permission problems.
*/
if (retlen > 0) {
nd->nd_repstat = nfsvno_write(vp, off, retlen, cnt, stable,
nd->nd_md, nd->nd_dpos, nd->nd_cred, p);
error = nfsm_advance(nd, NFSM_RNDUP(retlen), -1);
if (error)
panic("nfsrv_write mbuf");
}
if (nd->nd_flag & ND_NFSV4)
aftat_ret = 0;
else
aftat_ret = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
vput(vp);
if (!nd->nd_repstat)
nd->nd_repstat = aftat_ret;
if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, forat_ret, &forat, aftat_ret, &nva);
if (nd->nd_repstat)
goto out;
NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(retlen);
/*
* If nfs_async is set, then pretend the write was FILESYNC.
* Warning: Doing this violates RFC1813 and runs a risk
* of data written by a client being lost when the server
* crashes/reboots.
*/
if (stable == NFSWRITE_UNSTABLE && nfs_async == 0)
*tl++ = txdr_unsigned(stable);
else
*tl++ = txdr_unsigned(NFSWRITE_FILESYNC);
/*
* Actually, there is no need to txdr these fields,
* but it may make the values more human readable,
* for debugging purposes.
*/
*tl++ = txdr_unsigned(nfsboottime.tv_sec);
*tl = txdr_unsigned(nfsboottime.tv_usec);
} else if (!nd->nd_repstat)
nfsrv_fillattr(nd, &nva);
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs create service (creates regular files for V2 and V3. Spec. files for V2.)
* now does a truncate to 0 length via. setattr if it already exists
* The core creation routine has been extracted out into nfsrv_creatsub(),
* so it can also be used by nfsrv_open() for V4.
*/
APPLESTATIC int
nfsrvd_create(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, NFSPROC_T *p, struct nfsexstuff *exp)
{
struct nfsvattr nva, dirfor, diraft;
struct nfsv2_sattr *sp;
struct nameidata named;
u_int32_t *tl;
int error = 0, tsize, dirfor_ret = 1, diraft_ret = 1;
int how = NFSCREATE_UNCHECKED, exclusive_flag = 0;
NFSDEV_T rdev = 0;
vnode_t vp = NULL, dirp = NULL;
fhandle_t fh;
char *bufp;
u_long *hashp;
enum vtype vtyp;
int32_t cverf[2], tverf[2] = { 0, 0 };
if (nd->nd_repstat) {
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
goto out;
}
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
LOCKPARENT | LOCKLEAF | SAVESTART | NOCACHE);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error)
goto nfsmout;
if (!nd->nd_repstat) {
NFSVNO_ATTRINIT(&nva);
if (nd->nd_flag & ND_NFSV2) {
NFSM_DISSECT(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
vtyp = IFTOVT(fxdr_unsigned(u_int32_t, sp->sa_mode));
if (vtyp == VNON)
vtyp = VREG;
NFSVNO_SETATTRVAL(&nva, type, vtyp);
NFSVNO_SETATTRVAL(&nva, mode,
nfstov_mode(sp->sa_mode));
switch (nva.na_type) {
case VREG:
tsize = fxdr_unsigned(int32_t, sp->sa_size);
if (tsize != -1)
NFSVNO_SETATTRVAL(&nva, size,
(u_quad_t)tsize);
break;
case VCHR:
case VBLK:
case VFIFO:
rdev = fxdr_unsigned(NFSDEV_T, sp->sa_size);
break;
default:
break;
};
} else {
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
how = fxdr_unsigned(int, *tl);
switch (how) {
case NFSCREATE_GUARDED:
case NFSCREATE_UNCHECKED:
error = nfsrv_sattr(nd, NULL, &nva, NULL, NULL, p);
if (error)
goto nfsmout;
break;
case NFSCREATE_EXCLUSIVE:
NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF);
cverf[0] = *tl++;
cverf[1] = *tl;
exclusive_flag = 1;
break;
};
NFSVNO_SETATTRVAL(&nva, type, VREG);
}
}
if (nd->nd_repstat) {
nfsvno_relpathbuf(&named);
if (nd->nd_flag & ND_NFSV3) {
dirfor_ret = nfsvno_getattr(dp, &dirfor, nd->nd_cred,
p, 1);
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
&diraft);
}
vput(dp);
goto out;
}
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, p, &dirp);
if (dirp) {
if (nd->nd_flag & ND_NFSV2) {
vrele(dirp);
dirp = NULL;
} else {
dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred,
p, 0);
}
}
if (nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
&diraft);
if (dirp)
vrele(dirp);
goto out;
}
if (!(nd->nd_flag & ND_NFSV2)) {
switch (how) {
case NFSCREATE_GUARDED:
if (named.ni_vp)
nd->nd_repstat = EEXIST;
break;
case NFSCREATE_UNCHECKED:
break;
case NFSCREATE_EXCLUSIVE:
if (named.ni_vp == NULL)
NFSVNO_SETATTRVAL(&nva, mode, 0);
break;
};
}
/*
* Iff doesn't exist, create it
* otherwise just truncate to 0 length
* should I set the mode too ?
*/
nd->nd_repstat = nfsvno_createsub(nd, &named, &vp, &nva,
&exclusive_flag, cverf, rdev, p, exp);
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred,
p, 1);
vput(vp);
if (!nd->nd_repstat) {
tverf[0] = nva.na_atime.tv_sec;
tverf[1] = nva.na_atime.tv_nsec;
}
}
if (nd->nd_flag & ND_NFSV2) {
if (!nd->nd_repstat) {
(void) nfsm_fhtom(nd, (u_int8_t *)&fh, 0, 0);
nfsrv_fillattr(nd, &nva);
}
} else {
if (exclusive_flag && !nd->nd_repstat && (cverf[0] != tverf[0]
|| cverf[1] != tverf[1]))
nd->nd_repstat = EEXIST;
diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p, 0);
vrele(dirp);
if (!nd->nd_repstat) {
(void) nfsm_fhtom(nd, (u_int8_t *)&fh, 0, 1);
nfsrv_postopattr(nd, 0, &nva);
}
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
}
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(dp);
nfsvno_relpathbuf(&named);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs v3 mknod service (and v4 create)
*/
APPLESTATIC int
nfsrvd_mknod(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
struct nfsexstuff *exp)
{
struct nfsvattr nva, dirfor, diraft;
u_int32_t *tl;
struct nameidata named;
int error = 0, dirfor_ret = 1, diraft_ret = 1, pathlen;
u_int32_t major, minor;
enum vtype vtyp = VNON;
nfstype nfs4type = NFNON;
vnode_t vp, dirp = NULL;
nfsattrbit_t attrbits;
char *bufp = NULL, *pathcp = NULL;
u_long *hashp, cnflags;
NFSACL_T *aclp = NULL;
NFSVNO_ATTRINIT(&nva);
cnflags = (LOCKPARENT | SAVESTART);
if (nd->nd_repstat) {
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
goto out;
}
#ifdef NFS4_ACL_EXTATTR_NAME
aclp = acl_alloc(M_WAITOK);
aclp->acl_cnt = 0;
#endif
/*
* For V4, the creation stuff is here, Yuck!
*/
if (nd->nd_flag & ND_NFSV4) {
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
vtyp = nfsv34tov_type(*tl);
nfs4type = fxdr_unsigned(nfstype, *tl);
switch (nfs4type) {
case NFLNK:
error = nfsvno_getsymlink(nd, &nva, p, &pathcp,
&pathlen);
if (error)
goto nfsmout;
break;
case NFCHR:
case NFBLK:
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
major = fxdr_unsigned(u_int32_t, *tl++);
minor = fxdr_unsigned(u_int32_t, *tl);
nva.na_rdev = NFSMAKEDEV(major, minor);
break;
case NFSOCK:
case NFFIFO:
break;
case NFDIR:
cnflags = (LOCKPARENT | SAVENAME);
break;
default:
nd->nd_repstat = NFSERR_BADTYPE;
vrele(dp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
goto out;
}
}
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE, cnflags | NOCACHE);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error)
goto nfsmout;
if (!nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV3) {
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
vtyp = nfsv34tov_type(*tl);
}
error = nfsrv_sattr(nd, NULL, &nva, &attrbits, aclp, p);
if (error)
goto nfsmout;
nva.na_type = vtyp;
if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV3) &&
(vtyp == VCHR || vtyp == VBLK)) {
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
major = fxdr_unsigned(u_int32_t, *tl++);
minor = fxdr_unsigned(u_int32_t, *tl);
nva.na_rdev = NFSMAKEDEV(major, minor);
}
}
dirfor_ret = nfsvno_getattr(dp, &dirfor, nd->nd_cred, p, 0);
if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV4)) {
if (!dirfor_ret && NFSVNO_ISSETGID(&nva) &&
dirfor.na_gid == nva.na_gid)
NFSVNO_UNSET(&nva, gid);
nd->nd_repstat = nfsrv_checkuidgid(nd, &nva);
}
if (nd->nd_repstat) {
vrele(dp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
nfsvno_relpathbuf(&named);
if (pathcp)
FREE(pathcp, M_TEMP);
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
&diraft);
goto out;
}
/*
* Yuck! For V4, mkdir and link are here and some V4 clients don't fill
* in va_mode, so we'll have to set a default here.
*/
if (NFSVNO_NOTSETMODE(&nva)) {
if (vtyp == VLNK)
nva.na_mode = 0755;
else
nva.na_mode = 0400;
}
if (vtyp == VDIR)
named.ni_cnd.cn_flags |= WILLBEDIR;
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
if (nd->nd_repstat) {
if (dirp) {
if (nd->nd_flag & ND_NFSV3)
dirfor_ret = nfsvno_getattr(dirp, &dirfor,
nd->nd_cred, p, 0);
vrele(dirp);
}
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
&diraft);
goto out;
}
if (dirp)
dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred, p, 0);
if ((nd->nd_flag & ND_NFSV4) && (vtyp == VDIR || vtyp == VLNK)) {
if (vtyp == VDIR) {
nfsrvd_mkdirsub(nd, &named, &nva, fhp, vpp, dirp,
&dirfor, &diraft, &diraft_ret, &attrbits, aclp, p,
exp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
goto out;
} else if (vtyp == VLNK) {
nfsrvd_symlinksub(nd, &named, &nva, fhp, vpp, dirp,
&dirfor, &diraft, &diraft_ret, &attrbits,
aclp, p, exp, pathcp, pathlen);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
FREE(pathcp, M_TEMP);
goto out;
}
}
nd->nd_repstat = nfsvno_mknod(&named, &nva, nd->nd_cred, p);
if (!nd->nd_repstat) {
vp = named.ni_vp;
nfsrv_fixattr(nd, vp, &nva, aclp, p, &attrbits, exp);
nd->nd_repstat = nfsvno_getfh(vp, fhp, p);
if ((nd->nd_flag & ND_NFSV3) && !nd->nd_repstat)
nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred,
p, 1);
if (vpp != NULL && nd->nd_repstat == 0) {
NFSVOPUNLOCK(vp, 0);
*vpp = vp;
} else
vput(vp);
}
diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p, 0);
vrele(dirp);
if (!nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV3) {
(void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 1);
nfsrv_postopattr(nd, 0, &nva);
} else {
NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
*tl++ = newnfs_false;
txdr_hyper(dirfor.na_filerev, tl);
tl += 2;
txdr_hyper(diraft.na_filerev, tl);
(void) nfsrv_putattrbit(nd, &attrbits);
}
}
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vrele(dp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
if (bufp)
nfsvno_relpathbuf(&named);
if (pathcp)
FREE(pathcp, M_TEMP);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs remove service
*/
APPLESTATIC int
nfsrvd_remove(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, NFSPROC_T *p, struct nfsexstuff *exp)
{
struct nameidata named;
u_int32_t *tl;
int error = 0, dirfor_ret = 1, diraft_ret = 1;
vnode_t dirp = NULL;
struct nfsvattr dirfor, diraft;
char *bufp;
u_long *hashp;
if (nd->nd_repstat) {
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
goto out;
}
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, DELETE,
LOCKPARENT | LOCKLEAF);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error) {
vput(dp);
nfsvno_relpathbuf(&named);
goto out;
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, p, &dirp);
} else {
vput(dp);
nfsvno_relpathbuf(&named);
}
if (dirp) {
if (!(nd->nd_flag & ND_NFSV2)) {
dirfor_ret = nfsvno_getattr(dirp, &dirfor,
nd->nd_cred, p, 0);
} else {
vrele(dirp);
dirp = NULL;
}
}
if (!nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV4) {
if (vnode_vtype(named.ni_vp) == VDIR)
nd->nd_repstat = nfsvno_rmdirsub(&named, 1,
nd->nd_cred, p, exp);
else
nd->nd_repstat = nfsvno_removesub(&named, 1,
nd->nd_cred, p, exp);
} else if (nd->nd_procnum == NFSPROC_RMDIR) {
nd->nd_repstat = nfsvno_rmdirsub(&named, 0,
nd->nd_cred, p, exp);
} else {
nd->nd_repstat = nfsvno_removesub(&named, 0,
nd->nd_cred, p, exp);
}
}
if (!(nd->nd_flag & ND_NFSV2)) {
if (dirp) {
diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred,
p, 0);
vrele(dirp);
}
if (nd->nd_flag & ND_NFSV3) {
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
&diraft);
} else if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
*tl++ = newnfs_false;
txdr_hyper(dirfor.na_filerev, tl);
tl += 2;
txdr_hyper(diraft.na_filerev, tl);
}
}
out:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs rename service
*/
APPLESTATIC int
nfsrvd_rename(struct nfsrv_descript *nd, int isdgram,
vnode_t dp, vnode_t todp, NFSPROC_T *p, struct nfsexstuff *exp,
struct nfsexstuff *toexp)
{
u_int32_t *tl;
int error = 0, fdirfor_ret = 1, fdiraft_ret = 1;
int tdirfor_ret = 1, tdiraft_ret = 1;
struct nameidata fromnd, tond;
vnode_t fdirp = NULL, tdirp = NULL, tdp = NULL;
struct nfsvattr fdirfor, fdiraft, tdirfor, tdiraft;
struct nfsexstuff tnes;
struct nfsrvfh tfh;
char *bufp, *tbufp = NULL;
u_long *hashp;
fhandle_t fh;
if (nd->nd_repstat) {
nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft);
nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft);
goto out;
}
if (!(nd->nd_flag & ND_NFSV2))
fdirfor_ret = nfsvno_getattr(dp, &fdirfor, nd->nd_cred, p, 1);
tond.ni_cnd.cn_nameiop = 0;
tond.ni_startdir = NULL;
NFSNAMEICNDSET(&fromnd.ni_cnd, nd->nd_cred, DELETE, WANTPARENT | SAVESTART);
nfsvno_setpathbuf(&fromnd, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &fromnd.ni_pathlen);
if (error) {
vput(dp);
if (todp)
vrele(todp);
nfsvno_relpathbuf(&fromnd);
goto out;
}
/*
* Unlock dp in this code section, so it is unlocked before
* tdp gets locked. This avoids a potential LOR if tdp is the
* parent directory of dp.
*/
if (nd->nd_flag & ND_NFSV4) {
tdp = todp;
tnes = *toexp;
if (dp != tdp) {
NFSVOPUNLOCK(dp, 0);
tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd->nd_cred,
p, 0); /* Might lock tdp. */
} else {
tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd->nd_cred,
p, 1);
NFSVOPUNLOCK(dp, 0);
}
} else {
tfh.nfsrvfh_len = 0;
error = nfsrv_mtofh(nd, &tfh);
if (error == 0)
error = nfsvno_getfh(dp, &fh, p);
if (error) {
vput(dp);
/* todp is always NULL except NFSv4 */
nfsvno_relpathbuf(&fromnd);
goto out;
}
/* If this is the same file handle, just VREF() the vnode. */
if (tfh.nfsrvfh_len == NFSX_MYFH &&
!NFSBCMP(tfh.nfsrvfh_data, &fh, NFSX_MYFH)) {
VREF(dp);
tdp = dp;
tnes = *exp;
tdirfor_ret = nfsvno_getattr(tdp, &tdirfor, nd->nd_cred,
p, 1);
NFSVOPUNLOCK(dp, 0);
} else {
NFSVOPUNLOCK(dp, 0);
nd->nd_cred->cr_uid = nd->nd_saveduid;
nfsd_fhtovp(nd, &tfh, LK_EXCLUSIVE, &tdp, &tnes, NULL,
0, p); /* Locks tdp. */
if (tdp) {
tdirfor_ret = nfsvno_getattr(tdp, &tdirfor,
nd->nd_cred, p, 1);
NFSVOPUNLOCK(tdp, 0);
}
}
}
NFSNAMEICNDSET(&tond.ni_cnd, nd->nd_cred, RENAME, LOCKPARENT | LOCKLEAF | NOCACHE | SAVESTART);
nfsvno_setpathbuf(&tond, &tbufp, &hashp);
if (!nd->nd_repstat) {
error = nfsrv_parsename(nd, tbufp, hashp, &tond.ni_pathlen);
if (error) {
if (tdp)
vrele(tdp);
vrele(dp);
nfsvno_relpathbuf(&fromnd);
nfsvno_relpathbuf(&tond);
goto out;
}
}
if (nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV3) {
nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret,
&fdiraft);
nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret,
&tdiraft);
}
if (tdp)
vrele(tdp);
vrele(dp);
nfsvno_relpathbuf(&fromnd);
nfsvno_relpathbuf(&tond);
goto out;
}
/*
* Done parsing, now down to business.
*/
nd->nd_repstat = nfsvno_namei(nd, &fromnd, dp, 0, exp, p, &fdirp);
if (nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV3) {
nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret,
&fdiraft);
nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret,
&tdiraft);
}
if (fdirp)
vrele(fdirp);
if (tdp)
vrele(tdp);
nfsvno_relpathbuf(&tond);
goto out;
}
if (vnode_vtype(fromnd.ni_vp) == VDIR)
tond.ni_cnd.cn_flags |= WILLBEDIR;
nd->nd_repstat = nfsvno_namei(nd, &tond, tdp, 0, &tnes, p, &tdirp);
nd->nd_repstat = nfsvno_rename(&fromnd, &tond, nd->nd_repstat,
nd->nd_flag, nd->nd_cred, p);
if (fdirp)
fdiraft_ret = nfsvno_getattr(fdirp, &fdiraft, nd->nd_cred, p,
0);
if (tdirp)
tdiraft_ret = nfsvno_getattr(tdirp, &tdiraft, nd->nd_cred, p,
0);
if (fdirp)
vrele(fdirp);
if (tdirp)
vrele(tdirp);
if (nd->nd_flag & ND_NFSV3) {
nfsrv_wcc(nd, fdirfor_ret, &fdirfor, fdiraft_ret, &fdiraft);
nfsrv_wcc(nd, tdirfor_ret, &tdirfor, tdiraft_ret, &tdiraft);
} else if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, 10 * NFSX_UNSIGNED);
*tl++ = newnfs_false;
txdr_hyper(fdirfor.na_filerev, tl);
tl += 2;
txdr_hyper(fdiraft.na_filerev, tl);
tl += 2;
*tl++ = newnfs_false;
txdr_hyper(tdirfor.na_filerev, tl);
tl += 2;
txdr_hyper(tdiraft.na_filerev, tl);
}
out:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs link service
*/
APPLESTATIC int
nfsrvd_link(struct nfsrv_descript *nd, int isdgram,
vnode_t vp, vnode_t tovp, NFSPROC_T *p, struct nfsexstuff *exp,
struct nfsexstuff *toexp)
{
struct nameidata named;
u_int32_t *tl;
int error = 0, dirfor_ret = 1, diraft_ret = 1, getret = 1;
vnode_t dirp = NULL, dp = NULL;
struct nfsvattr dirfor, diraft, at;
struct nfsexstuff tnes;
struct nfsrvfh dfh;
char *bufp;
u_long *hashp;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, getret, &at);
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
goto out;
}
NFSVOPUNLOCK(vp, 0);
if (vnode_vtype(vp) == VDIR) {
if (nd->nd_flag & ND_NFSV4)
nd->nd_repstat = NFSERR_ISDIR;
else
nd->nd_repstat = NFSERR_INVAL;
if (tovp)
vrele(tovp);
}
if (!nd->nd_repstat) {
if (nd->nd_flag & ND_NFSV4) {
dp = tovp;
tnes = *toexp;
} else {
error = nfsrv_mtofh(nd, &dfh);
if (error) {
vrele(vp);
/* tovp is always NULL unless NFSv4 */
goto out;
}
nfsd_fhtovp(nd, &dfh, LK_EXCLUSIVE, &dp, &tnes, NULL, 0,
p);
if (dp)
NFSVOPUNLOCK(dp, 0);
}
}
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
LOCKPARENT | SAVENAME | NOCACHE);
if (!nd->nd_repstat) {
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error) {
vrele(vp);
if (dp)
vrele(dp);
nfsvno_relpathbuf(&named);
goto out;
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, &tnes,
p, &dirp);
} else {
if (dp)
vrele(dp);
nfsvno_relpathbuf(&named);
}
}
if (dirp) {
if (nd->nd_flag & ND_NFSV2) {
vrele(dirp);
dirp = NULL;
} else {
dirfor_ret = nfsvno_getattr(dirp, &dirfor,
nd->nd_cred, p, 0);
}
}
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_link(&named, vp, nd->nd_cred, p, exp);
if (nd->nd_flag & ND_NFSV3)
getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 0);
if (dirp) {
diraft_ret = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p, 0);
vrele(dirp);
}
vrele(vp);
if (nd->nd_flag & ND_NFSV3) {
nfsrv_postopattr(nd, getret, &at);
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
} else if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
*tl++ = newnfs_false;
txdr_hyper(dirfor.na_filerev, tl);
tl += 2;
txdr_hyper(diraft.na_filerev, tl);
}
out:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs symbolic link service
*/
APPLESTATIC int
nfsrvd_symlink(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
struct nfsexstuff *exp)
{
struct nfsvattr nva, dirfor, diraft;
struct nameidata named;
int error = 0, dirfor_ret = 1, diraft_ret = 1, pathlen;
vnode_t dirp = NULL;
char *bufp, *pathcp = NULL;
u_long *hashp;
if (nd->nd_repstat) {
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
goto out;
}
if (vpp)
*vpp = NULL;
NFSVNO_ATTRINIT(&nva);
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
LOCKPARENT | SAVESTART | NOCACHE);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (!error && !nd->nd_repstat)
error = nfsvno_getsymlink(nd, &nva, p, &pathcp, &pathlen);
if (error) {
vrele(dp);
nfsvno_relpathbuf(&named);
goto out;
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
} else {
vrele(dp);
nfsvno_relpathbuf(&named);
}
if (dirp != NULL && !(nd->nd_flag & ND_NFSV3)) {
vrele(dirp);
dirp = NULL;
}
/*
* And call nfsrvd_symlinksub() to do the common code. It will
* return EBADRPC upon a parsing error, 0 otherwise.
*/
if (!nd->nd_repstat) {
if (dirp != NULL)
dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred,
p, 0);
nfsrvd_symlinksub(nd, &named, &nva, fhp, vpp, dirp,
&dirfor, &diraft, &diraft_ret, NULL, NULL, p, exp,
pathcp, pathlen);
} else if (dirp != NULL) {
dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred, p, 0);
vrele(dirp);
}
if (pathcp)
FREE(pathcp, M_TEMP);
if (nd->nd_flag & ND_NFSV3) {
if (!nd->nd_repstat) {
(void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 1);
nfsrv_postopattr(nd, 0, &nva);
}
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
}
out:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* Common code for creating a symbolic link.
*/
static void
nfsrvd_symlinksub(struct nfsrv_descript *nd, struct nameidata *ndp,
struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
int *diraft_retp, nfsattrbit_t *attrbitp,
NFSACL_T *aclp, NFSPROC_T *p, struct nfsexstuff *exp, char *pathcp,
int pathlen)
{
u_int32_t *tl;
nd->nd_repstat = nfsvno_symlink(ndp, nvap, pathcp, pathlen,
!(nd->nd_flag & ND_NFSV2), nd->nd_saveduid, nd->nd_cred, p, exp);
if (!nd->nd_repstat && !(nd->nd_flag & ND_NFSV2)) {
nfsrv_fixattr(nd, ndp->ni_vp, nvap, aclp, p, attrbitp, exp);
if (nd->nd_flag & ND_NFSV3) {
nd->nd_repstat = nfsvno_getfh(ndp->ni_vp, fhp, p);
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_getattr(ndp->ni_vp,
nvap, nd->nd_cred, p, 1);
}
if (vpp != NULL && nd->nd_repstat == 0) {
NFSVOPUNLOCK(ndp->ni_vp, 0);
*vpp = ndp->ni_vp;
} else
vput(ndp->ni_vp);
}
if (dirp) {
*diraft_retp = nfsvno_getattr(dirp, diraftp, nd->nd_cred, p, 0);
vrele(dirp);
}
if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
*tl++ = newnfs_false;
txdr_hyper(dirforp->na_filerev, tl);
tl += 2;
txdr_hyper(diraftp->na_filerev, tl);
(void) nfsrv_putattrbit(nd, attrbitp);
}
NFSEXITCODE2(0, nd);
}
/*
* nfs mkdir service
*/
APPLESTATIC int
nfsrvd_mkdir(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, vnode_t *vpp, fhandle_t *fhp, NFSPROC_T *p,
struct nfsexstuff *exp)
{
struct nfsvattr nva, dirfor, diraft;
struct nameidata named;
u_int32_t *tl;
int error = 0, dirfor_ret = 1, diraft_ret = 1;
vnode_t dirp = NULL;
char *bufp;
u_long *hashp;
if (nd->nd_repstat) {
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
goto out;
}
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
LOCKPARENT | SAVENAME | NOCACHE);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error)
goto nfsmout;
if (!nd->nd_repstat) {
NFSVNO_ATTRINIT(&nva);
if (nd->nd_flag & ND_NFSV3) {
error = nfsrv_sattr(nd, NULL, &nva, NULL, NULL, p);
if (error)
goto nfsmout;
} else {
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
nva.na_mode = nfstov_mode(*tl++);
}
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp, p, &dirp);
} else {
vrele(dp);
nfsvno_relpathbuf(&named);
}
if (dirp != NULL && !(nd->nd_flag & ND_NFSV3)) {
vrele(dirp);
dirp = NULL;
}
if (nd->nd_repstat) {
if (dirp != NULL) {
dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred,
p, 0);
vrele(dirp);
}
if (nd->nd_flag & ND_NFSV3)
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret,
&diraft);
goto out;
}
if (dirp != NULL)
dirfor_ret = nfsvno_getattr(dirp, &dirfor, nd->nd_cred, p, 0);
/*
* Call nfsrvd_mkdirsub() for the code common to V4 as well.
*/
nfsrvd_mkdirsub(nd, &named, &nva, fhp, vpp, dirp, &dirfor, &diraft,
&diraft_ret, NULL, NULL, p, exp);
if (nd->nd_flag & ND_NFSV3) {
if (!nd->nd_repstat) {
(void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 1);
nfsrv_postopattr(nd, 0, &nva);
}
nfsrv_wcc(nd, dirfor_ret, &dirfor, diraft_ret, &diraft);
} else if (!nd->nd_repstat) {
(void) nfsm_fhtom(nd, (u_int8_t *)fhp, 0, 0);
nfsrv_fillattr(nd, &nva);
}
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vrele(dp);
nfsvno_relpathbuf(&named);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* Code common to mkdir for V2,3 and 4.
*/
static void
nfsrvd_mkdirsub(struct nfsrv_descript *nd, struct nameidata *ndp,
struct nfsvattr *nvap, fhandle_t *fhp, vnode_t *vpp,
vnode_t dirp, struct nfsvattr *dirforp, struct nfsvattr *diraftp,
int *diraft_retp, nfsattrbit_t *attrbitp, NFSACL_T *aclp,
NFSPROC_T *p, struct nfsexstuff *exp)
{
vnode_t vp;
u_int32_t *tl;
NFSVNO_SETATTRVAL(nvap, type, VDIR);
nd->nd_repstat = nfsvno_mkdir(ndp, nvap, nd->nd_saveduid,
nd->nd_cred, p, exp);
if (!nd->nd_repstat) {
vp = ndp->ni_vp;
nfsrv_fixattr(nd, vp, nvap, aclp, p, attrbitp, exp);
nd->nd_repstat = nfsvno_getfh(vp, fhp, p);
if (!(nd->nd_flag & ND_NFSV4) && !nd->nd_repstat)
nd->nd_repstat = nfsvno_getattr(vp, nvap, nd->nd_cred,
p, 1);
if (vpp && !nd->nd_repstat) {
NFSVOPUNLOCK(vp, 0);
*vpp = vp;
} else {
vput(vp);
}
}
if (dirp) {
*diraft_retp = nfsvno_getattr(dirp, diraftp, nd->nd_cred, p, 0);
vrele(dirp);
}
if ((nd->nd_flag & ND_NFSV4) && !nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED);
*tl++ = newnfs_false;
txdr_hyper(dirforp->na_filerev, tl);
tl += 2;
txdr_hyper(diraftp->na_filerev, tl);
(void) nfsrv_putattrbit(nd, attrbitp);
}
NFSEXITCODE2(0, nd);
}
/*
* nfs commit service
*/
APPLESTATIC int
nfsrvd_commit(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
struct nfsvattr bfor, aft;
u_int32_t *tl;
int error = 0, for_ret = 1, aft_ret = 1, cnt;
u_int64_t off;
if (nd->nd_repstat) {
nfsrv_wcc(nd, for_ret, &bfor, aft_ret, &aft);
goto out;
}
/* Return NFSERR_ISDIR in NFSv4 when commit on a directory. */
if (vp->v_type != VREG) {
if (nd->nd_flag & ND_NFSV3)
error = NFSERR_NOTSUPP;
else
error = (vp->v_type == VDIR) ? NFSERR_ISDIR : NFSERR_INVAL;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
/*
* XXX At this time VOP_FSYNC() does not accept offset and byte
* count parameters, so these arguments are useless (someday maybe).
*/
off = fxdr_hyper(tl);
tl += 2;
cnt = fxdr_unsigned(int, *tl);
if (nd->nd_flag & ND_NFSV3)
for_ret = nfsvno_getattr(vp, &bfor, nd->nd_cred, p, 1);
nd->nd_repstat = nfsvno_fsync(vp, off, cnt, nd->nd_cred, p);
if (nd->nd_flag & ND_NFSV3) {
aft_ret = nfsvno_getattr(vp, &aft, nd->nd_cred, p, 1);
nfsrv_wcc(nd, for_ret, &bfor, aft_ret, &aft);
}
vput(vp);
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, NFSX_VERF);
*tl++ = txdr_unsigned(nfsboottime.tv_sec);
*tl = txdr_unsigned(nfsboottime.tv_usec);
}
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs statfs service
*/
APPLESTATIC int
nfsrvd_statfs(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
struct statfs *sf;
u_int32_t *tl;
int getret = 1;
struct nfsvattr at;
struct statfs sfs;
u_quad_t tval;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, getret, &at);
goto out;
}
sf = &sfs;
nd->nd_repstat = nfsvno_statfs(vp, sf);
getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 1);
vput(vp);
if (nd->nd_flag & ND_NFSV3)
nfsrv_postopattr(nd, getret, &at);
if (nd->nd_repstat)
goto out;
if (nd->nd_flag & ND_NFSV2) {
NFSM_BUILD(tl, u_int32_t *, NFSX_V2STATFS);
*tl++ = txdr_unsigned(NFS_V2MAXDATA);
*tl++ = txdr_unsigned(sf->f_bsize);
*tl++ = txdr_unsigned(sf->f_blocks);
*tl++ = txdr_unsigned(sf->f_bfree);
*tl = txdr_unsigned(sf->f_bavail);
} else {
NFSM_BUILD(tl, u_int32_t *, NFSX_V3STATFS);
tval = (u_quad_t)sf->f_blocks;
tval *= (u_quad_t)sf->f_bsize;
txdr_hyper(tval, tl); tl += 2;
tval = (u_quad_t)sf->f_bfree;
tval *= (u_quad_t)sf->f_bsize;
txdr_hyper(tval, tl); tl += 2;
tval = (u_quad_t)sf->f_bavail;
tval *= (u_quad_t)sf->f_bsize;
txdr_hyper(tval, tl); tl += 2;
tval = (u_quad_t)sf->f_files;
txdr_hyper(tval, tl); tl += 2;
tval = (u_quad_t)sf->f_ffree;
txdr_hyper(tval, tl); tl += 2;
tval = (u_quad_t)sf->f_ffree;
txdr_hyper(tval, tl); tl += 2;
*tl = 0;
}
out:
NFSEXITCODE2(0, nd);
return (0);
}
/*
* nfs fsinfo service
*/
APPLESTATIC int
nfsrvd_fsinfo(struct nfsrv_descript *nd, int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
struct nfsfsinfo fs;
int getret = 1;
struct nfsvattr at;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, getret, &at);
goto out;
}
getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 1);
nfsvno_getfs(&fs, isdgram);
vput(vp);
nfsrv_postopattr(nd, getret, &at);
NFSM_BUILD(tl, u_int32_t *, NFSX_V3FSINFO);
*tl++ = txdr_unsigned(fs.fs_rtmax);
*tl++ = txdr_unsigned(fs.fs_rtpref);
*tl++ = txdr_unsigned(fs.fs_rtmult);
*tl++ = txdr_unsigned(fs.fs_wtmax);
*tl++ = txdr_unsigned(fs.fs_wtpref);
*tl++ = txdr_unsigned(fs.fs_wtmult);
*tl++ = txdr_unsigned(fs.fs_dtpref);
txdr_hyper(fs.fs_maxfilesize, tl);
tl += 2;
txdr_nfsv3time(&fs.fs_timedelta, tl);
tl += 2;
*tl = txdr_unsigned(fs.fs_properties);
out:
NFSEXITCODE2(0, nd);
return (0);
}
/*
* nfs pathconf service
*/
APPLESTATIC int
nfsrvd_pathconf(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
struct nfsv3_pathconf *pc;
int getret = 1;
register_t linkmax, namemax, chownres, notrunc;
struct nfsvattr at;
if (nd->nd_repstat) {
nfsrv_postopattr(nd, getret, &at);
goto out;
}
nd->nd_repstat = nfsvno_pathconf(vp, _PC_LINK_MAX, &linkmax,
nd->nd_cred, p);
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_pathconf(vp, _PC_NAME_MAX, &namemax,
nd->nd_cred, p);
if (!nd->nd_repstat)
nd->nd_repstat=nfsvno_pathconf(vp, _PC_CHOWN_RESTRICTED,
&chownres, nd->nd_cred, p);
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_pathconf(vp, _PC_NO_TRUNC, &notrunc,
nd->nd_cred, p);
getret = nfsvno_getattr(vp, &at, nd->nd_cred, p, 1);
vput(vp);
nfsrv_postopattr(nd, getret, &at);
if (!nd->nd_repstat) {
NFSM_BUILD(pc, struct nfsv3_pathconf *, NFSX_V3PATHCONF);
pc->pc_linkmax = txdr_unsigned(linkmax);
pc->pc_namemax = txdr_unsigned(namemax);
pc->pc_notrunc = txdr_unsigned(notrunc);
pc->pc_chownrestricted = txdr_unsigned(chownres);
/*
* These should probably be supported by VOP_PATHCONF(), but
* until msdosfs is exportable (why would you want to?), the
* Unix defaults should be ok.
*/
pc->pc_caseinsensitive = newnfs_false;
pc->pc_casepreserving = newnfs_true;
}
out:
NFSEXITCODE2(0, nd);
return (0);
}
/*
* nfsv4 lock service
*/
APPLESTATIC int
nfsrvd_lock(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
{
u_int32_t *tl;
int i;
struct nfsstate *stp = NULL;
struct nfslock *lop;
struct nfslockconflict cf;
int error = 0;
u_short flags = NFSLCK_LOCK, lflags;
u_int64_t offset, len;
nfsv4stateid_t stateid;
nfsquad_t clientid;
NFSM_DISSECT(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
i = fxdr_unsigned(int, *tl++);
switch (i) {
case NFSV4LOCKT_READW:
flags |= NFSLCK_BLOCKING;
case NFSV4LOCKT_READ:
lflags = NFSLCK_READ;
break;
case NFSV4LOCKT_WRITEW:
flags |= NFSLCK_BLOCKING;
case NFSV4LOCKT_WRITE:
lflags = NFSLCK_WRITE;
break;
default:
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
};
if (*tl++ == newnfs_true)
flags |= NFSLCK_RECLAIM;
offset = fxdr_hyper(tl);
tl += 2;
len = fxdr_hyper(tl);
tl += 2;
if (*tl == newnfs_true)
flags |= NFSLCK_OPENTOLOCK;
if (flags & NFSLCK_OPENTOLOCK) {
NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED + NFSX_STATEID);
i = fxdr_unsigned(int, *(tl+4+(NFSX_STATEID / NFSX_UNSIGNED)));
if (i <= 0 || i > NFSV4_OPAQUELIMIT) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + i,
M_NFSDSTATE, M_WAITOK);
stp->ls_ownerlen = i;
stp->ls_op = nd->nd_rp;
stp->ls_seq = fxdr_unsigned(int, *tl++);
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
NFSX_STATEIDOTHER);
tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
stp->ls_opentolockseq = fxdr_unsigned(int, *tl++);
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl++;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK3 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen);
if (error)
goto nfsmout;
} else {
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED);
MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate),
M_NFSDSTATE, M_WAITOK);
stp->ls_ownerlen = 0;
stp->ls_op = nd->nd_rp;
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
NFSX_STATEIDOTHER);
tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
stp->ls_seq = fxdr_unsigned(int, *tl);
clientid.lval[0] = stp->ls_stateid.other[0];
clientid.lval[1] = stp->ls_stateid.other[1];
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK4 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
}
MALLOC(lop, struct nfslock *, sizeof (struct nfslock),
M_NFSDLOCK, M_WAITOK);
lop->lo_first = offset;
if (len == NFS64BITSSET) {
lop->lo_end = NFS64BITSSET;
} else {
lop->lo_end = offset + len;
if (lop->lo_end <= lop->lo_first)
nd->nd_repstat = NFSERR_INVAL;
}
lop->lo_flags = lflags;
stp->ls_flags = flags;
stp->ls_uid = nd->nd_cred->cr_uid;
/*
* Do basic access checking.
*/
if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
if (vnode_vtype(vp) == VDIR)
nd->nd_repstat = NFSERR_ISDIR;
else
nd->nd_repstat = NFSERR_INVAL;
}
if (!nd->nd_repstat) {
if (lflags & NFSLCK_WRITE) {
nd->nd_repstat = nfsvno_accchk(vp, VWRITE,
nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
NFSACCCHK_VPISLOCKED, NULL);
} else {
nd->nd_repstat = nfsvno_accchk(vp, VREAD,
nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
NFSACCCHK_VPISLOCKED, NULL);
if (nd->nd_repstat)
nd->nd_repstat = nfsvno_accchk(vp, VEXEC,
nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
NFSACCCHK_VPISLOCKED, NULL);
}
}
/*
* We call nfsrv_lockctrl() even if nd_repstat set, so that the
* seqid# gets updated. nfsrv_lockctrl() will return the value
* of nd_repstat, if it gets that far.
*/
nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, &cf, clientid,
&stateid, exp, nd, p);
if (lop)
FREE((caddr_t)lop, M_NFSDLOCK);
if (stp)
FREE((caddr_t)stp, M_NFSDSTATE);
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
*tl++ = txdr_unsigned(stateid.seqid);
NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
} else if (nd->nd_repstat == NFSERR_DENIED) {
NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
txdr_hyper(cf.cl_first, tl);
tl += 2;
if (cf.cl_end == NFS64BITSSET)
len = NFS64BITSSET;
else
len = cf.cl_end - cf.cl_first;
txdr_hyper(len, tl);
tl += 2;
if (cf.cl_flags == NFSLCK_WRITE)
*tl++ = txdr_unsigned(NFSV4LOCKT_WRITE);
else
*tl++ = txdr_unsigned(NFSV4LOCKT_READ);
*tl++ = stateid.other[0];
*tl = stateid.other[1];
(void) nfsm_strtom(nd, cf.cl_owner, cf.cl_ownerlen);
}
vput(vp);
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
if (stp)
free((caddr_t)stp, M_NFSDSTATE);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 lock test service
*/
APPLESTATIC int
nfsrvd_lockt(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
{
u_int32_t *tl;
int i;
struct nfsstate *stp = NULL;
struct nfslock lo, *lop = &lo;
struct nfslockconflict cf;
int error = 0;
nfsv4stateid_t stateid;
nfsquad_t clientid;
u_int64_t len;
NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED);
i = fxdr_unsigned(int, *(tl + 7));
if (i <= 0 || i > NFSV4_OPAQUELIMIT) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + i,
M_NFSDSTATE, M_WAITOK);
stp->ls_ownerlen = i;
stp->ls_op = NULL;
stp->ls_flags = NFSLCK_TEST;
stp->ls_uid = nd->nd_cred->cr_uid;
i = fxdr_unsigned(int, *tl++);
switch (i) {
case NFSV4LOCKT_READW:
stp->ls_flags |= NFSLCK_BLOCKING;
case NFSV4LOCKT_READ:
lo.lo_flags = NFSLCK_READ;
break;
case NFSV4LOCKT_WRITEW:
stp->ls_flags |= NFSLCK_BLOCKING;
case NFSV4LOCKT_WRITE:
lo.lo_flags = NFSLCK_WRITE;
break;
default:
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
};
lo.lo_first = fxdr_hyper(tl);
tl += 2;
len = fxdr_hyper(tl);
if (len == NFS64BITSSET) {
lo.lo_end = NFS64BITSSET;
} else {
lo.lo_end = lo.lo_first + len;
if (lo.lo_end <= lo.lo_first)
nd->nd_repstat = NFSERR_INVAL;
}
tl += 2;
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK5 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen);
if (error)
goto nfsmout;
if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
if (vnode_vtype(vp) == VDIR)
nd->nd_repstat = NFSERR_ISDIR;
else
nd->nd_repstat = NFSERR_INVAL;
}
if (!nd->nd_repstat)
nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, &cf, clientid,
&stateid, exp, nd, p);
if (stp)
FREE((caddr_t)stp, M_NFSDSTATE);
if (nd->nd_repstat) {
if (nd->nd_repstat == NFSERR_DENIED) {
NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED);
txdr_hyper(cf.cl_first, tl);
tl += 2;
if (cf.cl_end == NFS64BITSSET)
len = NFS64BITSSET;
else
len = cf.cl_end - cf.cl_first;
txdr_hyper(len, tl);
tl += 2;
if (cf.cl_flags == NFSLCK_WRITE)
*tl++ = txdr_unsigned(NFSV4LOCKT_WRITE);
else
*tl++ = txdr_unsigned(NFSV4LOCKT_READ);
*tl++ = stp->ls_stateid.other[0];
*tl = stp->ls_stateid.other[1];
(void) nfsm_strtom(nd, cf.cl_owner, cf.cl_ownerlen);
}
}
vput(vp);
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
if (stp)
free((caddr_t)stp, M_NFSDSTATE);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 unlock service
*/
APPLESTATIC int
nfsrvd_locku(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, struct nfsexstuff *exp)
{
u_int32_t *tl;
int i;
struct nfsstate *stp;
struct nfslock *lop;
int error = 0;
nfsv4stateid_t stateid;
nfsquad_t clientid;
u_int64_t len;
NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED + NFSX_STATEID);
MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate),
M_NFSDSTATE, M_WAITOK);
MALLOC(lop, struct nfslock *, sizeof (struct nfslock),
M_NFSDLOCK, M_WAITOK);
stp->ls_flags = NFSLCK_UNLOCK;
lop->lo_flags = NFSLCK_UNLOCK;
stp->ls_op = nd->nd_rp;
i = fxdr_unsigned(int, *tl++);
switch (i) {
case NFSV4LOCKT_READW:
stp->ls_flags |= NFSLCK_BLOCKING;
case NFSV4LOCKT_READ:
break;
case NFSV4LOCKT_WRITEW:
stp->ls_flags |= NFSLCK_BLOCKING;
case NFSV4LOCKT_WRITE:
break;
default:
nd->nd_repstat = NFSERR_BADXDR;
free(stp, M_NFSDSTATE);
free(lop, M_NFSDLOCK);
goto nfsmout;
};
stp->ls_ownerlen = 0;
stp->ls_uid = nd->nd_cred->cr_uid;
stp->ls_seq = fxdr_unsigned(int, *tl++);
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
NFSX_STATEIDOTHER);
tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
lop->lo_first = fxdr_hyper(tl);
tl += 2;
len = fxdr_hyper(tl);
if (len == NFS64BITSSET) {
lop->lo_end = NFS64BITSSET;
} else {
lop->lo_end = lop->lo_first + len;
if (lop->lo_end <= lop->lo_first)
nd->nd_repstat = NFSERR_INVAL;
}
clientid.lval[0] = stp->ls_stateid.other[0];
clientid.lval[1] = stp->ls_stateid.other[1];
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK6 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
if (vnode_vtype(vp) == VDIR)
nd->nd_repstat = NFSERR_ISDIR;
else
nd->nd_repstat = NFSERR_INVAL;
}
/*
* Call nfsrv_lockctrl() even if nd_repstat is set, so that the
* seqid# gets incremented. nfsrv_lockctrl() will return the
* value of nd_repstat, if it gets that far.
*/
nd->nd_repstat = nfsrv_lockctrl(vp, &stp, &lop, NULL, clientid,
&stateid, exp, nd, p);
if (stp)
FREE((caddr_t)stp, M_NFSDSTATE);
if (lop)
free((caddr_t)lop, M_NFSDLOCK);
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
*tl++ = txdr_unsigned(stateid.seqid);
NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
}
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 open service
*/
APPLESTATIC int
nfsrvd_open(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, vnode_t *vpp, __unused fhandle_t *fhp, NFSPROC_T *p,
struct nfsexstuff *exp)
{
u_int32_t *tl;
int i, retext;
struct nfsstate *stp = NULL;
int error = 0, create, claim, exclusive_flag = 0;
u_int32_t rflags = NFSV4OPEN_LOCKTYPEPOSIX, acemask;
int how = NFSCREATE_UNCHECKED;
int32_t cverf[2], tverf[2] = { 0, 0 };
vnode_t vp = NULL, dirp = NULL;
struct nfsvattr nva, dirfor, diraft;
struct nameidata named;
nfsv4stateid_t stateid, delegstateid;
nfsattrbit_t attrbits;
nfsquad_t clientid;
char *bufp = NULL;
u_long *hashp;
NFSACL_T *aclp = NULL;
#ifdef NFS4_ACL_EXTATTR_NAME
aclp = acl_alloc(M_WAITOK);
aclp->acl_cnt = 0;
#endif
NFSZERO_ATTRBIT(&attrbits);
named.ni_startdir = NULL;
named.ni_cnd.cn_nameiop = 0;
NFSM_DISSECT(tl, u_int32_t *, 6 * NFSX_UNSIGNED);
i = fxdr_unsigned(int, *(tl + 5));
if (i <= 0 || i > NFSV4_OPAQUELIMIT) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + i,
M_NFSDSTATE, M_WAITOK);
stp->ls_ownerlen = i;
stp->ls_op = nd->nd_rp;
stp->ls_flags = NFSLCK_OPEN;
stp->ls_uid = nd->nd_cred->cr_uid;
stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++);
i = fxdr_unsigned(int, *tl++);
retext = 0;
if ((i & (NFSV4OPEN_WANTDELEGMASK | NFSV4OPEN_WANTSIGNALDELEG |
NFSV4OPEN_WANTPUSHDELEG)) != 0 && (nd->nd_flag & ND_NFSV41) != 0) {
retext = 1;
/* For now, ignore these. */
i &= ~(NFSV4OPEN_WANTPUSHDELEG | NFSV4OPEN_WANTSIGNALDELEG);
switch (i & NFSV4OPEN_WANTDELEGMASK) {
case NFSV4OPEN_WANTANYDELEG:
stp->ls_flags |= (NFSLCK_WANTRDELEG |
NFSLCK_WANTWDELEG);
i &= ~NFSV4OPEN_WANTDELEGMASK;
break;
case NFSV4OPEN_WANTREADDELEG:
stp->ls_flags |= NFSLCK_WANTRDELEG;
i &= ~NFSV4OPEN_WANTDELEGMASK;
break;
case NFSV4OPEN_WANTWRITEDELEG:
stp->ls_flags |= NFSLCK_WANTWDELEG;
i &= ~NFSV4OPEN_WANTDELEGMASK;
break;
case NFSV4OPEN_WANTNODELEG:
stp->ls_flags |= NFSLCK_WANTNODELEG;
i &= ~NFSV4OPEN_WANTDELEGMASK;
break;
case NFSV4OPEN_WANTCANCEL:
printf("NFSv4: ignore Open WantCancel\n");
i &= ~NFSV4OPEN_WANTDELEGMASK;
break;
default:
/* nd_repstat will be set to NFSERR_INVAL below. */
break;
};
}
switch (i) {
case NFSV4OPEN_ACCESSREAD:
stp->ls_flags |= NFSLCK_READACCESS;
break;
case NFSV4OPEN_ACCESSWRITE:
stp->ls_flags |= NFSLCK_WRITEACCESS;
break;
case NFSV4OPEN_ACCESSBOTH:
stp->ls_flags |= (NFSLCK_READACCESS | NFSLCK_WRITEACCESS);
break;
default:
nd->nd_repstat = NFSERR_INVAL;
};
i = fxdr_unsigned(int, *tl++);
switch (i) {
case NFSV4OPEN_DENYNONE:
break;
case NFSV4OPEN_DENYREAD:
stp->ls_flags |= NFSLCK_READDENY;
break;
case NFSV4OPEN_DENYWRITE:
stp->ls_flags |= NFSLCK_WRITEDENY;
break;
case NFSV4OPEN_DENYBOTH:
stp->ls_flags |= (NFSLCK_READDENY | NFSLCK_WRITEDENY);
break;
default:
nd->nd_repstat = NFSERR_INVAL;
};
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK7 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
error = nfsrv_mtostr(nd, stp->ls_owner, stp->ls_ownerlen);
if (error)
goto nfsmout;
NFSVNO_ATTRINIT(&nva);
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
create = fxdr_unsigned(int, *tl);
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_getattr(dp, &dirfor, nd->nd_cred, p, 0);
if (create == NFSV4OPEN_CREATE) {
nva.na_type = VREG;
nva.na_mode = 0;
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
how = fxdr_unsigned(int, *tl);
switch (how) {
case NFSCREATE_UNCHECKED:
case NFSCREATE_GUARDED:
error = nfsv4_sattr(nd, NULL, &nva, &attrbits, aclp, p);
if (error)
goto nfsmout;
/*
* If the na_gid being set is the same as that of
* the directory it is going in, clear it, since
* that is what will be set by default. This allows
* a user that isn't in that group to do the create.
*/
if (!nd->nd_repstat && NFSVNO_ISSETGID(&nva) &&
nva.na_gid == dirfor.na_gid)
NFSVNO_UNSET(&nva, gid);
if (!nd->nd_repstat)
nd->nd_repstat = nfsrv_checkuidgid(nd, &nva);
break;
case NFSCREATE_EXCLUSIVE:
NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF);
cverf[0] = *tl++;
cverf[1] = *tl;
break;
case NFSCREATE_EXCLUSIVE41:
NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF);
cverf[0] = *tl++;
cverf[1] = *tl;
error = nfsv4_sattr(nd, vp, &nva, &attrbits, aclp, p);
if (error != 0)
goto nfsmout;
if (NFSISSET_ATTRBIT(&attrbits,
NFSATTRBIT_TIMEACCESSSET))
nd->nd_repstat = NFSERR_INVAL;
/*
* If the na_gid being set is the same as that of
* the directory it is going in, clear it, since
* that is what will be set by default. This allows
* a user that isn't in that group to do the create.
*/
if (nd->nd_repstat == 0 && NFSVNO_ISSETGID(&nva) &&
nva.na_gid == dirfor.na_gid)
NFSVNO_UNSET(&nva, gid);
if (nd->nd_repstat == 0)
nd->nd_repstat = nfsrv_checkuidgid(nd, &nva);
break;
default:
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
};
} else if (create != NFSV4OPEN_NOCREATE) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
/*
* Now, handle the claim, which usually includes looking up a
* name in the directory referenced by dp. The exception is
* NFSV4OPEN_CLAIMPREVIOUS.
*/
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
claim = fxdr_unsigned(int, *tl);
if (claim == NFSV4OPEN_CLAIMDELEGATECUR) {
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl,(caddr_t)stateid.other,NFSX_STATEIDOTHER);
stp->ls_flags |= NFSLCK_DELEGCUR;
} else if (claim == NFSV4OPEN_CLAIMDELEGATEPREV) {
stp->ls_flags |= NFSLCK_DELEGPREV;
}
if (claim == NFSV4OPEN_CLAIMNULL || claim == NFSV4OPEN_CLAIMDELEGATECUR
|| claim == NFSV4OPEN_CLAIMDELEGATEPREV) {
if (!nd->nd_repstat && create == NFSV4OPEN_CREATE &&
claim != NFSV4OPEN_CLAIMNULL)
nd->nd_repstat = NFSERR_INVAL;
if (nd->nd_repstat) {
nd->nd_repstat = nfsrv_opencheck(clientid,
&stateid, stp, NULL, nd, p, nd->nd_repstat);
goto nfsmout;
}
if (create == NFSV4OPEN_CREATE)
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, CREATE,
LOCKPARENT | LOCKLEAF | SAVESTART | NOCACHE);
else
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP,
LOCKLEAF | SAVESTART);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error) {
vrele(dp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
FREE((caddr_t)stp, M_NFSDSTATE);
nfsvno_relpathbuf(&named);
NFSEXITCODE2(error, nd);
return (error);
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 0, exp,
p, &dirp);
} else {
vrele(dp);
nfsvno_relpathbuf(&named);
}
if (create == NFSV4OPEN_CREATE) {
switch (how) {
case NFSCREATE_UNCHECKED:
if (named.ni_vp) {
/*
* Clear the setable attribute bits, except
* for Size, if it is being truncated.
*/
NFSZERO_ATTRBIT(&attrbits);
if (NFSVNO_ISSETSIZE(&nva))
NFSSETBIT_ATTRBIT(&attrbits,
NFSATTRBIT_SIZE);
}
break;
case NFSCREATE_GUARDED:
if (named.ni_vp && !nd->nd_repstat)
nd->nd_repstat = EEXIST;
break;
case NFSCREATE_EXCLUSIVE:
exclusive_flag = 1;
if (!named.ni_vp)
nva.na_mode = 0;
break;
case NFSCREATE_EXCLUSIVE41:
exclusive_flag = 1;
break;
};
}
nfsvno_open(nd, &named, clientid, &stateid, stp,
&exclusive_flag, &nva, cverf, create, aclp, &attrbits,
nd->nd_cred, p, exp, &vp);
} else if (claim == NFSV4OPEN_CLAIMPREVIOUS || claim ==
NFSV4OPEN_CLAIMFH) {
if (claim == NFSV4OPEN_CLAIMPREVIOUS) {
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
i = fxdr_unsigned(int, *tl);
switch (i) {
case NFSV4OPEN_DELEGATEREAD:
stp->ls_flags |= NFSLCK_DELEGREAD;
break;
case NFSV4OPEN_DELEGATEWRITE:
stp->ls_flags |= NFSLCK_DELEGWRITE;
case NFSV4OPEN_DELEGATENONE:
break;
default:
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
};
stp->ls_flags |= NFSLCK_RECLAIM;
} else {
/* CLAIM_NULL_FH */
if (nd->nd_repstat == 0 && create == NFSV4OPEN_CREATE)
nd->nd_repstat = NFSERR_INVAL;
}
vp = dp;
NFSVOPLOCK(vp, LK_EXCLUSIVE | LK_RETRY);
if ((vp->v_iflag & VI_DOOMED) == 0)
nd->nd_repstat = nfsrv_opencheck(clientid, &stateid,
stp, vp, nd, p, nd->nd_repstat);
else
nd->nd_repstat = NFSERR_PERM;
} else {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
/*
* Do basic access checking.
*/
if (!nd->nd_repstat && vnode_vtype(vp) != VREG) {
/*
* The IETF working group decided that this is the correct
* error return for all non-regular files.
*/
nd->nd_repstat = (vp->v_type == VDIR) ? NFSERR_ISDIR : NFSERR_SYMLINK;
}
if (!nd->nd_repstat && (stp->ls_flags & NFSLCK_WRITEACCESS))
nd->nd_repstat = nfsvno_accchk(vp, VWRITE, nd->nd_cred,
exp, p, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
if (!nd->nd_repstat && (stp->ls_flags & NFSLCK_READACCESS)) {
nd->nd_repstat = nfsvno_accchk(vp, VREAD, nd->nd_cred,
exp, p, NFSACCCHK_ALLOWOWNER, NFSACCCHK_VPISLOCKED, NULL);
if (nd->nd_repstat)
nd->nd_repstat = nfsvno_accchk(vp, VEXEC,
nd->nd_cred, exp, p, NFSACCCHK_ALLOWOWNER,
NFSACCCHK_VPISLOCKED, NULL);
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
if (!nd->nd_repstat) {
tverf[0] = nva.na_atime.tv_sec;
tverf[1] = nva.na_atime.tv_nsec;
}
}
if (!nd->nd_repstat && exclusive_flag && (cverf[0] != tverf[0] ||
cverf[1] != tverf[1]))
nd->nd_repstat = EEXIST;
/*
* Do the open locking/delegation stuff.
*/
if (!nd->nd_repstat)
nd->nd_repstat = nfsrv_openctrl(nd, vp, &stp, clientid, &stateid,
&delegstateid, &rflags, exp, p, nva.na_filerev);
/*
* vp must be unlocked before the call to nfsvno_getattr(dirp,...)
* below, to avoid a deadlock with the lookup in nfsvno_namei() above.
* (ie: Leave the NFSVOPUNLOCK() about here.)
*/
if (vp)
NFSVOPUNLOCK(vp, 0);
if (stp)
FREE((caddr_t)stp, M_NFSDSTATE);
if (!nd->nd_repstat && dirp)
nd->nd_repstat = nfsvno_getattr(dirp, &diraft, nd->nd_cred, p,
0);
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(stateid.seqid);
NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
if (claim == NFSV4OPEN_CLAIMPREVIOUS) {
*tl++ = newnfs_true;
*tl++ = 0;
*tl++ = 0;
*tl++ = 0;
*tl++ = 0;
} else {
*tl++ = newnfs_false; /* Since dirp is not locked */
txdr_hyper(dirfor.na_filerev, tl);
tl += 2;
txdr_hyper(diraft.na_filerev, tl);
tl += 2;
}
*tl = txdr_unsigned(rflags & NFSV4OPEN_RFLAGS);
(void) nfsrv_putattrbit(nd, &attrbits);
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
if (rflags & NFSV4OPEN_READDELEGATE)
*tl = txdr_unsigned(NFSV4OPEN_DELEGATEREAD);
else if (rflags & NFSV4OPEN_WRITEDELEGATE)
*tl = txdr_unsigned(NFSV4OPEN_DELEGATEWRITE);
else if (retext != 0) {
*tl = txdr_unsigned(NFSV4OPEN_DELEGATENONEEXT);
if ((rflags & NFSV4OPEN_WDCONTENTION) != 0) {
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(NFSV4OPEN_CONTENTION);
*tl = newnfs_false;
} else if ((rflags & NFSV4OPEN_WDRESOURCE) != 0) {
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(NFSV4OPEN_RESOURCE);
*tl = newnfs_false;
} else {
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl = txdr_unsigned(NFSV4OPEN_NOTWANTED);
}
} else
*tl = txdr_unsigned(NFSV4OPEN_DELEGATENONE);
if (rflags & (NFSV4OPEN_READDELEGATE|NFSV4OPEN_WRITEDELEGATE)) {
NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID+NFSX_UNSIGNED);
*tl++ = txdr_unsigned(delegstateid.seqid);
NFSBCOPY((caddr_t)delegstateid.other, (caddr_t)tl,
NFSX_STATEIDOTHER);
tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
if (rflags & NFSV4OPEN_RECALL)
*tl = newnfs_true;
else
*tl = newnfs_false;
if (rflags & NFSV4OPEN_WRITEDELEGATE) {
NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(NFSV4OPEN_LIMITSIZE);
txdr_hyper(nva.na_size, tl);
}
NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(NFSV4ACE_ALLOWEDTYPE);
*tl++ = txdr_unsigned(0x0);
acemask = NFSV4ACE_ALLFILESMASK;
if (nva.na_mode & S_IRUSR)
acemask |= NFSV4ACE_READMASK;
if (nva.na_mode & S_IWUSR)
acemask |= NFSV4ACE_WRITEMASK;
if (nva.na_mode & S_IXUSR)
acemask |= NFSV4ACE_EXECUTEMASK;
*tl = txdr_unsigned(acemask);
(void) nfsm_strtom(nd, "OWNER@", 6);
}
*vpp = vp;
} else if (vp) {
vrele(vp);
}
if (dirp)
vrele(dirp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vrele(dp);
#ifdef NFS4_ACL_EXTATTR_NAME
acl_free(aclp);
#endif
if (stp)
FREE((caddr_t)stp, M_NFSDSTATE);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 close service
*/
APPLESTATIC int
nfsrvd_close(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
struct nfsstate st, *stp = &st;
int error = 0;
nfsv4stateid_t stateid;
nfsquad_t clientid;
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID);
stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++);
stp->ls_ownerlen = 0;
stp->ls_op = nd->nd_rp;
stp->ls_uid = nd->nd_cred->cr_uid;
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
NFSX_STATEIDOTHER);
stp->ls_flags = NFSLCK_CLOSE;
clientid.lval[0] = stp->ls_stateid.other[0];
clientid.lval[1] = stp->ls_stateid.other[1];
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK8 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid, nd, p);
vput(vp);
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
*tl++ = txdr_unsigned(stateid.seqid);
NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
}
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 delegpurge service
*/
APPLESTATIC int
nfsrvd_delegpurge(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, __unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
int error = 0;
nfsquad_t clientid;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK9 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
nd->nd_repstat = nfsrv_delegupdate(nd, clientid, NULL, NULL,
NFSV4OP_DELEGPURGE, nd->nd_cred, p);
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 delegreturn service
*/
APPLESTATIC int
nfsrvd_delegreturn(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
int error = 0;
nfsv4stateid_t stateid;
nfsquad_t clientid;
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID);
stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl, (caddr_t)stateid.other, NFSX_STATEIDOTHER);
clientid.lval[0] = stateid.other[0];
clientid.lval[1] = stateid.other[1];
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK10 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
nd->nd_repstat = nfsrv_delegupdate(nd, clientid, &stateid, vp,
NFSV4OP_DELEGRETURN, nd->nd_cred, p);
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 get file handle service
*/
APPLESTATIC int
nfsrvd_getfh(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
fhandle_t fh;
nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
vput(vp);
if (!nd->nd_repstat)
(void) nfsm_fhtom(nd, (u_int8_t *)&fh, 0, 0);
NFSEXITCODE2(0, nd);
return (0);
}
/*
* nfsv4 open confirm service
*/
APPLESTATIC int
nfsrvd_openconfirm(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
struct nfsstate st, *stp = &st;
int error = 0;
nfsv4stateid_t stateid;
nfsquad_t clientid;
if ((nd->nd_flag & ND_NFSV41) != 0) {
nd->nd_repstat = NFSERR_NOTSUPP;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED);
stp->ls_ownerlen = 0;
stp->ls_op = nd->nd_rp;
stp->ls_uid = nd->nd_cred->cr_uid;
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
NFSX_STATEIDOTHER);
tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
stp->ls_seq = fxdr_unsigned(u_int32_t, *tl);
stp->ls_flags = NFSLCK_CONFIRM;
clientid.lval[0] = stp->ls_stateid.other[0];
clientid.lval[1] = stp->ls_stateid.other[1];
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK11 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid, nd, p);
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
*tl++ = txdr_unsigned(stateid.seqid);
NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
}
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 open downgrade service
*/
APPLESTATIC int
nfsrvd_opendowngrade(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
int i;
struct nfsstate st, *stp = &st;
int error = 0;
nfsv4stateid_t stateid;
nfsquad_t clientid;
/* opendowngrade can only work on a file object.*/
if (vp->v_type != VREG) {
error = NFSERR_INVAL;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED);
stp->ls_ownerlen = 0;
stp->ls_op = nd->nd_rp;
stp->ls_uid = nd->nd_cred->cr_uid;
stp->ls_stateid.seqid = fxdr_unsigned(u_int32_t, *tl++);
NFSBCOPY((caddr_t)tl, (caddr_t)stp->ls_stateid.other,
NFSX_STATEIDOTHER);
tl += (NFSX_STATEIDOTHER / NFSX_UNSIGNED);
stp->ls_seq = fxdr_unsigned(u_int32_t, *tl++);
i = fxdr_unsigned(int, *tl++);
switch (i) {
case NFSV4OPEN_ACCESSREAD:
stp->ls_flags = (NFSLCK_READACCESS | NFSLCK_DOWNGRADE);
break;
case NFSV4OPEN_ACCESSWRITE:
stp->ls_flags = (NFSLCK_WRITEACCESS | NFSLCK_DOWNGRADE);
break;
case NFSV4OPEN_ACCESSBOTH:
stp->ls_flags = (NFSLCK_READACCESS | NFSLCK_WRITEACCESS |
NFSLCK_DOWNGRADE);
break;
default:
nd->nd_repstat = NFSERR_BADXDR;
};
i = fxdr_unsigned(int, *tl);
switch (i) {
case NFSV4OPEN_DENYNONE:
break;
case NFSV4OPEN_DENYREAD:
stp->ls_flags |= NFSLCK_READDENY;
break;
case NFSV4OPEN_DENYWRITE:
stp->ls_flags |= NFSLCK_WRITEDENY;
break;
case NFSV4OPEN_DENYBOTH:
stp->ls_flags |= (NFSLCK_READDENY | NFSLCK_WRITEDENY);
break;
default:
nd->nd_repstat = NFSERR_BADXDR;
};
clientid.lval[0] = stp->ls_stateid.other[0];
clientid.lval[1] = stp->ls_stateid.other[1];
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK12 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
if (!nd->nd_repstat)
nd->nd_repstat = nfsrv_openupdate(vp, stp, clientid, &stateid,
nd, p);
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID);
*tl++ = txdr_unsigned(stateid.seqid);
NFSBCOPY((caddr_t)stateid.other,(caddr_t)tl,NFSX_STATEIDOTHER);
}
nfsmout:
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 renew lease service
*/
APPLESTATIC int
nfsrvd_renew(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
int error = 0;
nfsquad_t clientid;
if ((nd->nd_flag & ND_NFSV41) != 0) {
nd->nd_repstat = NFSERR_NOTSUPP;
goto nfsmout;
}
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK13 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
nd->nd_repstat = nfsrv_getclient(clientid, (CLOPS_RENEWOP|CLOPS_RENEW),
NULL, NULL, (nfsquad_t)((u_quad_t)0), 0, nd, p);
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 security info service
*/
APPLESTATIC int
nfsrvd_secinfo(struct nfsrv_descript *nd, int isdgram,
vnode_t dp, NFSPROC_T *p, struct nfsexstuff *exp)
{
u_int32_t *tl;
int len;
struct nameidata named;
vnode_t dirp = NULL, vp;
struct nfsrvfh fh;
struct nfsexstuff retnes;
u_int32_t *sizp;
int error = 0, savflag, i;
char *bufp;
u_long *hashp;
/*
* All this just to get the export flags for the name.
*/
NFSNAMEICNDSET(&named.ni_cnd, nd->nd_cred, LOOKUP,
LOCKLEAF | SAVESTART);
nfsvno_setpathbuf(&named, &bufp, &hashp);
error = nfsrv_parsename(nd, bufp, hashp, &named.ni_pathlen);
if (error) {
vput(dp);
nfsvno_relpathbuf(&named);
goto out;
}
if (!nd->nd_repstat) {
nd->nd_repstat = nfsvno_namei(nd, &named, dp, 1, exp, p, &dirp);
} else {
vput(dp);
nfsvno_relpathbuf(&named);
}
if (dirp)
vrele(dirp);
if (nd->nd_repstat)
goto out;
vrele(named.ni_startdir);
nfsvno_relpathbuf(&named);
fh.nfsrvfh_len = NFSX_MYFH;
vp = named.ni_vp;
nd->nd_repstat = nfsvno_getfh(vp, (fhandle_t *)fh.nfsrvfh_data, p);
vput(vp);
savflag = nd->nd_flag;
if (!nd->nd_repstat) {
nfsd_fhtovp(nd, &fh, LK_SHARED, &vp, &retnes, NULL, 0, p);
if (vp)
vput(vp);
}
nd->nd_flag = savflag;
if (nd->nd_repstat)
goto out;
/*
* Finally have the export flags for name, so we can create
* the security info.
*/
len = 0;
NFSM_BUILD(sizp, u_int32_t *, NFSX_UNSIGNED);
for (i = 0; i < retnes.nes_numsecflavor; i++) {
if (retnes.nes_secflavors[i] == AUTH_SYS) {
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl = txdr_unsigned(RPCAUTH_UNIX);
len++;
} else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5) {
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl++ = txdr_unsigned(RPCAUTH_GSS);
(void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str,
nfsgss_mechlist[KERBV_MECH].len);
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(GSS_KERBV_QOP);
*tl = txdr_unsigned(RPCAUTHGSS_SVCNONE);
len++;
} else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5I) {
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl++ = txdr_unsigned(RPCAUTH_GSS);
(void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str,
nfsgss_mechlist[KERBV_MECH].len);
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(GSS_KERBV_QOP);
*tl = txdr_unsigned(RPCAUTHGSS_SVCINTEGRITY);
len++;
} else if (retnes.nes_secflavors[i] == RPCSEC_GSS_KRB5P) {
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl++ = txdr_unsigned(RPCAUTH_GSS);
(void) nfsm_strtom(nd, nfsgss_mechlist[KERBV_MECH].str,
nfsgss_mechlist[KERBV_MECH].len);
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(GSS_KERBV_QOP);
*tl = txdr_unsigned(RPCAUTHGSS_SVCPRIVACY);
len++;
}
}
*sizp = txdr_unsigned(len);
out:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 set client id service
*/
APPLESTATIC int
nfsrvd_setclientid(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
int i;
int error = 0, idlen;
struct nfsclient *clp = NULL;
struct sockaddr_in *rad;
u_char *verf, *ucp, *ucp2, addrbuf[24];
nfsquad_t clientid, confirm;
if ((nd->nd_flag & ND_NFSV41) != 0) {
nd->nd_repstat = NFSERR_NOTSUPP;
goto nfsmout;
}
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto out;
}
NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF + NFSX_UNSIGNED);
verf = (u_char *)tl;
tl += (NFSX_VERF / NFSX_UNSIGNED);
i = fxdr_unsigned(int, *tl);
if (i > NFSV4_OPAQUELIMIT || i <= 0) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
idlen = i;
if (nd->nd_flag & ND_GSS)
i += nd->nd_princlen;
clp = malloc(sizeof(struct nfsclient) + i, M_NFSDCLIENT, M_WAITOK |
M_ZERO);
clp->lc_stateid = malloc(sizeof(struct nfsstatehead) *
nfsrv_statehashsize, M_NFSDCLIENT, M_WAITOK);
NFSINITSOCKMUTEX(&clp->lc_req.nr_mtx);
NFSSOCKADDRALLOC(clp->lc_req.nr_nam);
NFSSOCKADDRSIZE(clp->lc_req.nr_nam, sizeof (struct sockaddr_in));
clp->lc_req.nr_cred = NULL;
NFSBCOPY(verf, clp->lc_verf, NFSX_VERF);
clp->lc_idlen = idlen;
error = nfsrv_mtostr(nd, clp->lc_id, idlen);
if (error)
goto nfsmout;
if (nd->nd_flag & ND_GSS) {
clp->lc_flags = LCL_GSS;
if (nd->nd_flag & ND_GSSINTEGRITY)
clp->lc_flags |= LCL_GSSINTEGRITY;
else if (nd->nd_flag & ND_GSSPRIVACY)
clp->lc_flags |= LCL_GSSPRIVACY;
} else {
clp->lc_flags = 0;
}
if ((nd->nd_flag & ND_GSS) && nd->nd_princlen > 0) {
clp->lc_flags |= LCL_NAME;
clp->lc_namelen = nd->nd_princlen;
clp->lc_name = &clp->lc_id[idlen];
NFSBCOPY(nd->nd_principal, clp->lc_name, clp->lc_namelen);
} else {
clp->lc_uid = nd->nd_cred->cr_uid;
clp->lc_gid = nd->nd_cred->cr_gid;
}
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
clp->lc_program = fxdr_unsigned(u_int32_t, *tl);
error = nfsrv_getclientipaddr(nd, clp);
if (error)
goto nfsmout;
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
clp->lc_callback = fxdr_unsigned(u_int32_t, *tl);
/*
* nfsrv_setclient() does the actual work of adding it to the
* client list. If there is no error, the structure has been
* linked into the client list and clp should no longer be used
* here. When an error is returned, it has not been linked in,
* so it should be free'd.
*/
nd->nd_repstat = nfsrv_setclient(nd, &clp, &clientid, &confirm, p);
if (nd->nd_repstat == NFSERR_CLIDINUSE) {
if (clp->lc_flags & LCL_TCPCALLBACK)
(void) nfsm_strtom(nd, "tcp", 3);
else
(void) nfsm_strtom(nd, "udp", 3);
rad = NFSSOCKADDR(clp->lc_req.nr_nam, struct sockaddr_in *);
ucp = (u_char *)&rad->sin_addr.s_addr;
ucp2 = (u_char *)&rad->sin_port;
sprintf(addrbuf, "%d.%d.%d.%d.%d.%d", ucp[0] & 0xff,
ucp[1] & 0xff, ucp[2] & 0xff, ucp[3] & 0xff,
ucp2[0] & 0xff, ucp2[1] & 0xff);
(void) nfsm_strtom(nd, addrbuf, strlen(addrbuf));
}
if (clp) {
NFSSOCKADDRFREE(clp->lc_req.nr_nam);
NFSFREEMUTEX(&clp->lc_req.nr_mtx);
free(clp->lc_stateid, M_NFSDCLIENT);
free(clp, M_NFSDCLIENT);
}
if (!nd->nd_repstat) {
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_HYPER);
*tl++ = clientid.lval[0];
*tl++ = clientid.lval[1];
*tl++ = confirm.lval[0];
*tl = confirm.lval[1];
}
out:
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
if (clp) {
NFSSOCKADDRFREE(clp->lc_req.nr_nam);
NFSFREEMUTEX(&clp->lc_req.nr_mtx);
free(clp->lc_stateid, M_NFSDCLIENT);
free(clp, M_NFSDCLIENT);
}
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 set client id confirm service
*/
APPLESTATIC int
nfsrvd_setclientidcfrm(struct nfsrv_descript *nd,
__unused int isdgram, __unused vnode_t vp, NFSPROC_T *p,
__unused struct nfsexstuff *exp)
{
u_int32_t *tl;
int error = 0;
nfsquad_t clientid, confirm;
if ((nd->nd_flag & ND_NFSV41) != 0) {
nd->nd_repstat = NFSERR_NOTSUPP;
goto nfsmout;
}
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_HYPER);
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl++;
confirm.lval[0] = *tl++;
confirm.lval[1] = *tl;
/*
* nfsrv_getclient() searches the client list for a match and
* returns the appropriate NFSERR status.
*/
nd->nd_repstat = nfsrv_getclient(clientid, (CLOPS_CONFIRM|CLOPS_RENEW),
NULL, NULL, confirm, 0, nd, p);
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 verify service
*/
APPLESTATIC int
nfsrvd_verify(struct nfsrv_descript *nd, int isdgram,
vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
int error = 0, ret, fhsize = NFSX_MYFH;
struct nfsvattr nva;
struct statfs sf;
struct nfsfsinfo fs;
fhandle_t fh;
nd->nd_repstat = nfsvno_getattr(vp, &nva, nd->nd_cred, p, 1);
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_statfs(vp, &sf);
if (!nd->nd_repstat)
nd->nd_repstat = nfsvno_getfh(vp, &fh, p);
if (!nd->nd_repstat) {
nfsvno_getfs(&fs, isdgram);
error = nfsv4_loadattr(nd, vp, &nva, NULL, &fh, fhsize, NULL,
&sf, NULL, &fs, NULL, 1, &ret, NULL, NULL, p, nd->nd_cred);
if (!error) {
if (nd->nd_procnum == NFSV4OP_NVERIFY) {
if (ret == 0)
nd->nd_repstat = NFSERR_SAME;
else if (ret != NFSERR_NOTSAME)
nd->nd_repstat = ret;
} else if (ret)
nd->nd_repstat = ret;
}
}
vput(vp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfs openattr rpc
*/
APPLESTATIC int
nfsrvd_openattr(struct nfsrv_descript *nd, __unused int isdgram,
vnode_t dp, __unused vnode_t *vpp, __unused fhandle_t *fhp,
__unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
int error = 0, createdir;
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
createdir = fxdr_unsigned(int, *tl);
nd->nd_repstat = NFSERR_NOTSUPP;
nfsmout:
vrele(dp);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 release lock owner service
*/
APPLESTATIC int
nfsrvd_releaselckown(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
u_int32_t *tl;
struct nfsstate *stp = NULL;
int error = 0, len;
nfsquad_t clientid;
if ((nd->nd_flag & ND_NFSV41) != 0) {
nd->nd_repstat = NFSERR_NOTSUPP;
goto nfsmout;
}
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
len = fxdr_unsigned(int, *(tl + 2));
if (len <= 0 || len > NFSV4_OPAQUELIMIT) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
MALLOC(stp, struct nfsstate *, sizeof (struct nfsstate) + len,
M_NFSDSTATE, M_WAITOK);
stp->ls_ownerlen = len;
stp->ls_op = NULL;
stp->ls_flags = NFSLCK_RELEASE;
stp->ls_uid = nd->nd_cred->cr_uid;
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl;
if ((nd->nd_flag & ND_IMPLIEDCLID) != 0) {
if ((nd->nd_flag & ND_NFSV41) != 0)
clientid.qval = nd->nd_clientid.qval;
else if (nd->nd_clientid.qval != clientid.qval)
printf("EEK14 multiple clids\n");
} else {
if ((nd->nd_flag & ND_NFSV41) != 0)
printf("EEK! no clientid from session\n");
nd->nd_flag |= ND_IMPLIEDCLID;
nd->nd_clientid.qval = clientid.qval;
}
error = nfsrv_mtostr(nd, stp->ls_owner, len);
if (error)
goto nfsmout;
nd->nd_repstat = nfsrv_releaselckown(stp, clientid, p);
FREE((caddr_t)stp, M_NFSDSTATE);
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
if (stp)
free((caddr_t)stp, M_NFSDSTATE);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 exchange_id service
*/
APPLESTATIC int
nfsrvd_exchangeid(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
uint32_t *tl;
int error = 0, i, idlen;
struct nfsclient *clp = NULL;
nfsquad_t clientid, confirm;
uint8_t *verf;
uint32_t sp4type, v41flags;
uint64_t owner_minor;
struct timespec verstime;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF + NFSX_UNSIGNED);
verf = (uint8_t *)tl;
tl += (NFSX_VERF / NFSX_UNSIGNED);
i = fxdr_unsigned(int, *tl);
if (i > NFSV4_OPAQUELIMIT || i <= 0) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
}
idlen = i;
if (nd->nd_flag & ND_GSS)
i += nd->nd_princlen;
clp = malloc(sizeof(struct nfsclient) + i, M_NFSDCLIENT, M_WAITOK |
M_ZERO);
clp->lc_stateid = malloc(sizeof(struct nfsstatehead) *
nfsrv_statehashsize, M_NFSDCLIENT, M_WAITOK);
NFSINITSOCKMUTEX(&clp->lc_req.nr_mtx);
NFSSOCKADDRALLOC(clp->lc_req.nr_nam);
NFSSOCKADDRSIZE(clp->lc_req.nr_nam, sizeof (struct sockaddr_in));
clp->lc_req.nr_cred = NULL;
NFSBCOPY(verf, clp->lc_verf, NFSX_VERF);
clp->lc_idlen = idlen;
error = nfsrv_mtostr(nd, clp->lc_id, idlen);
if (error != 0)
goto nfsmout;
if ((nd->nd_flag & ND_GSS) != 0) {
clp->lc_flags = LCL_GSS | LCL_NFSV41;
if ((nd->nd_flag & ND_GSSINTEGRITY) != 0)
clp->lc_flags |= LCL_GSSINTEGRITY;
else if ((nd->nd_flag & ND_GSSPRIVACY) != 0)
clp->lc_flags |= LCL_GSSPRIVACY;
} else
clp->lc_flags = LCL_NFSV41;
if ((nd->nd_flag & ND_GSS) != 0 && nd->nd_princlen > 0) {
clp->lc_flags |= LCL_NAME;
clp->lc_namelen = nd->nd_princlen;
clp->lc_name = &clp->lc_id[idlen];
NFSBCOPY(nd->nd_principal, clp->lc_name, clp->lc_namelen);
} else {
clp->lc_uid = nd->nd_cred->cr_uid;
clp->lc_gid = nd->nd_cred->cr_gid;
}
NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
v41flags = fxdr_unsigned(uint32_t, *tl++);
if ((v41flags & ~(NFSV4EXCH_SUPPMOVEDREFER | NFSV4EXCH_SUPPMOVEDMIGR |
NFSV4EXCH_BINDPRINCSTATEID | NFSV4EXCH_MASKPNFS |
NFSV4EXCH_UPDCONFIRMEDRECA)) != 0) {
nd->nd_repstat = NFSERR_INVAL;
goto nfsmout;
}
if ((v41flags & NFSV4EXCH_UPDCONFIRMEDRECA) != 0)
confirm.lval[1] = 1;
else
confirm.lval[1] = 0;
v41flags = NFSV4EXCH_USENONPNFS;
sp4type = fxdr_unsigned(uint32_t, *tl);
if (sp4type != NFSV4EXCH_SP4NONE) {
nd->nd_repstat = NFSERR_NOTSUPP;
goto nfsmout;
}
/*
* nfsrv_setclient() does the actual work of adding it to the
* client list. If there is no error, the structure has been
* linked into the client list and clp should no longer be used
* here. When an error is returned, it has not been linked in,
* so it should be free'd.
*/
nd->nd_repstat = nfsrv_setclient(nd, &clp, &clientid, &confirm, p);
if (clp != NULL) {
NFSSOCKADDRFREE(clp->lc_req.nr_nam);
NFSFREEMUTEX(&clp->lc_req.nr_mtx);
free(clp->lc_stateid, M_NFSDCLIENT);
free(clp, M_NFSDCLIENT);
}
if (nd->nd_repstat == 0) {
if (confirm.lval[1] != 0)
v41flags |= NFSV4EXCH_CONFIRMEDR;
NFSM_BUILD(tl, uint32_t *, 2 * NFSX_HYPER + 3 * NFSX_UNSIGNED);
*tl++ = clientid.lval[0]; /* ClientID */
*tl++ = clientid.lval[1];
*tl++ = txdr_unsigned(confirm.lval[0]); /* SequenceID */
*tl++ = txdr_unsigned(v41flags); /* Exch flags */
*tl++ = txdr_unsigned(NFSV4EXCH_SP4NONE); /* No SSV */
owner_minor = 0; /* Owner */
txdr_hyper(owner_minor, tl); /* Minor */
(void)nfsm_strtom(nd, nd->nd_cred->cr_prison->pr_hostuuid,
strlen(nd->nd_cred->cr_prison->pr_hostuuid)); /* Major */
NFSM_BUILD(tl, uint32_t *, 3 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(NFSX_UNSIGNED);
*tl++ = time_uptime; /* Make scope a unique value. */
*tl = txdr_unsigned(1);
(void)nfsm_strtom(nd, "freebsd.org", strlen("freebsd.org"));
(void)nfsm_strtom(nd, version, strlen(version));
NFSM_BUILD(tl, uint32_t *, NFSX_V4TIME);
verstime.tv_sec = 1293840000; /* Jan 1, 2011 */
verstime.tv_nsec = 0;
txdr_nfsv4time(&verstime, tl);
}
NFSEXITCODE2(0, nd);
return (0);
nfsmout:
if (clp != NULL) {
NFSSOCKADDRFREE(clp->lc_req.nr_nam);
NFSFREEMUTEX(&clp->lc_req.nr_mtx);
free(clp->lc_stateid, M_NFSDCLIENT);
free(clp, M_NFSDCLIENT);
}
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 create session service
*/
APPLESTATIC int
nfsrvd_createsession(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
uint32_t *tl;
int error = 0;
nfsquad_t clientid, confirm;
struct nfsdsession *sep = NULL;
uint32_t rdmacnt;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
sep = (struct nfsdsession *)malloc(sizeof(struct nfsdsession),
M_NFSDSESSION, M_WAITOK | M_ZERO);
sep->sess_refcnt = 1;
mtx_init(&sep->sess_cbsess.nfsess_mtx, "nfscbsession", NULL, MTX_DEF);
NFSM_DISSECT(tl, uint32_t *, NFSX_HYPER + 2 * NFSX_UNSIGNED);
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl++;
confirm.lval[0] = fxdr_unsigned(uint32_t, *tl++);
sep->sess_crflags = fxdr_unsigned(uint32_t, *tl);
/* Persistent sessions and RDMA are not supported. */
sep->sess_crflags &= NFSV4CRSESS_CONNBACKCHAN;
/* Fore channel attributes. */
NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED);
tl++; /* Header pad always 0. */
sep->sess_maxreq = fxdr_unsigned(uint32_t, *tl++);
sep->sess_maxresp = fxdr_unsigned(uint32_t, *tl++);
sep->sess_maxrespcached = fxdr_unsigned(uint32_t, *tl++);
sep->sess_maxops = fxdr_unsigned(uint32_t, *tl++);
sep->sess_maxslots = fxdr_unsigned(uint32_t, *tl++);
if (sep->sess_maxslots > NFSV4_SLOTS)
sep->sess_maxslots = NFSV4_SLOTS;
rdmacnt = fxdr_unsigned(uint32_t, *tl);
if (rdmacnt > 1) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
} else if (rdmacnt == 1)
NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
/* Back channel attributes. */
NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED);
tl++; /* Header pad always 0. */
sep->sess_cbmaxreq = fxdr_unsigned(uint32_t, *tl++);
sep->sess_cbmaxresp = fxdr_unsigned(uint32_t, *tl++);
sep->sess_cbmaxrespcached = fxdr_unsigned(uint32_t, *tl++);
sep->sess_cbmaxops = fxdr_unsigned(uint32_t, *tl++);
sep->sess_cbsess.nfsess_foreslots = fxdr_unsigned(uint32_t, *tl++);
rdmacnt = fxdr_unsigned(uint32_t, *tl);
if (rdmacnt > 1) {
nd->nd_repstat = NFSERR_BADXDR;
goto nfsmout;
} else if (rdmacnt == 1)
NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
sep->sess_cbprogram = fxdr_unsigned(uint32_t, *tl);
/*
* nfsrv_getclient() searches the client list for a match and
* returns the appropriate NFSERR status.
*/
nd->nd_repstat = nfsrv_getclient(clientid, CLOPS_CONFIRM | CLOPS_RENEW,
NULL, sep, confirm, sep->sess_cbprogram, nd, p);
if (nd->nd_repstat == 0) {
NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID);
NFSBCOPY(sep->sess_sessionid, tl, NFSX_V4SESSIONID);
NFSM_BUILD(tl, uint32_t *, 18 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(confirm.lval[0]); /* sequenceid */
*tl++ = txdr_unsigned(sep->sess_crflags);
/* Fore channel attributes. */
*tl++ = 0;
*tl++ = txdr_unsigned(sep->sess_maxreq);
*tl++ = txdr_unsigned(sep->sess_maxresp);
*tl++ = txdr_unsigned(sep->sess_maxrespcached);
*tl++ = txdr_unsigned(sep->sess_maxops);
*tl++ = txdr_unsigned(sep->sess_maxslots);
*tl++ = txdr_unsigned(1);
*tl++ = txdr_unsigned(0); /* No RDMA. */
/* Back channel attributes. */
*tl++ = 0;
*tl++ = txdr_unsigned(sep->sess_cbmaxreq);
*tl++ = txdr_unsigned(sep->sess_cbmaxresp);
*tl++ = txdr_unsigned(sep->sess_cbmaxrespcached);
*tl++ = txdr_unsigned(sep->sess_cbmaxops);
*tl++ = txdr_unsigned(sep->sess_cbsess.nfsess_foreslots);
*tl++ = txdr_unsigned(1);
*tl = txdr_unsigned(0); /* No RDMA. */
}
nfsmout:
if (nd->nd_repstat != 0 && sep != NULL)
free(sep, M_NFSDSESSION);
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 sequence service
*/
APPLESTATIC int
nfsrvd_sequence(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, __unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
uint32_t *tl;
uint32_t highest_slotid, sequenceid, sflags, target_highest_slotid;
int cache_this, error = 0;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, uint32_t *, NFSX_V4SESSIONID);
NFSBCOPY(tl, nd->nd_sessionid, NFSX_V4SESSIONID);
NFSM_DISSECT(tl, uint32_t *, 4 * NFSX_UNSIGNED);
sequenceid = fxdr_unsigned(uint32_t, *tl++);
nd->nd_slotid = fxdr_unsigned(uint32_t, *tl++);
highest_slotid = fxdr_unsigned(uint32_t, *tl++);
if (*tl == newnfs_true)
cache_this = 1;
else
cache_this = 0;
nd->nd_flag |= ND_HASSEQUENCE;
nd->nd_repstat = nfsrv_checksequence(nd, sequenceid, &highest_slotid,
&target_highest_slotid, cache_this, &sflags, p);
if (nd->nd_repstat == 0) {
NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID);
NFSBCOPY(nd->nd_sessionid, tl, NFSX_V4SESSIONID);
NFSM_BUILD(tl, uint32_t *, 5 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(sequenceid);
*tl++ = txdr_unsigned(nd->nd_slotid);
*tl++ = txdr_unsigned(highest_slotid);
*tl++ = txdr_unsigned(target_highest_slotid);
*tl = txdr_unsigned(sflags);
}
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 reclaim complete service
*/
APPLESTATIC int
nfsrvd_reclaimcomplete(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, __unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
uint32_t *tl;
int error = 0;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
if (*tl == newnfs_true)
nd->nd_repstat = NFSERR_NOTSUPP;
else
nd->nd_repstat = nfsrv_checkreclaimcomplete(nd);
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 destroy clientid service
*/
APPLESTATIC int
nfsrvd_destroyclientid(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
uint32_t *tl;
nfsquad_t clientid;
int error = 0;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED);
clientid.lval[0] = *tl++;
clientid.lval[1] = *tl;
nd->nd_repstat = nfsrv_destroyclient(clientid, p);
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 destroy session service
*/
APPLESTATIC int
nfsrvd_destroysession(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, __unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
uint8_t *cp, sessid[NFSX_V4SESSIONID];
int error = 0;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(cp, uint8_t *, NFSX_V4SESSIONID);
NFSBCOPY(cp, sessid, NFSX_V4SESSIONID);
nd->nd_repstat = nfsrv_destroysession(nd, sessid);
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 free stateid service
*/
APPLESTATIC int
nfsrvd_freestateid(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
uint32_t *tl;
nfsv4stateid_t stateid;
int error = 0;
if (nfs_rootfhset == 0 || nfsd_checkrootexp(nd) != 0) {
nd->nd_repstat = NFSERR_WRONGSEC;
goto nfsmout;
}
NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID);
stateid.seqid = fxdr_unsigned(uint32_t, *tl++);
NFSBCOPY(tl, stateid.other, NFSX_STATEIDOTHER);
nd->nd_repstat = nfsrv_freestateid(nd, &stateid, p);
nfsmout:
NFSEXITCODE2(error, nd);
return (error);
}
/*
* nfsv4 service not supported
*/
APPLESTATIC int
nfsrvd_notsupp(struct nfsrv_descript *nd, __unused int isdgram,
__unused vnode_t vp, __unused NFSPROC_T *p, __unused struct nfsexstuff *exp)
{
nd->nd_repstat = NFSERR_NOTSUPP;
NFSEXITCODE2(0, nd);
return (0);
}
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