mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-16 10:20:30 +00:00
638493a3c4
a mistake (since softnet interrupts may occur if malloc() waits), and doing it harmlessly but unnecessarily here interfered with detection of the mistaken cases.
1193 lines
31 KiB
C
1193 lines
31 KiB
C
/*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 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.
|
|
*
|
|
* @(#)nfs_syscalls.c 8.5 (Berkeley) 3/30/95
|
|
* $Id: nfs_syscalls.c,v 1.32 1997/11/07 08:53:25 phk Exp $
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/sysproto.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/file.h>
|
|
#include <sys/filedesc.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/namei.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/tcp.h>
|
|
#ifdef ISO
|
|
#include <netiso/iso.h>
|
|
#endif
|
|
#include <nfs/xdr_subs.h>
|
|
#include <nfs/rpcv2.h>
|
|
#include <nfs/nfsproto.h>
|
|
#include <nfs/nfs.h>
|
|
#include <nfs/nfsm_subs.h>
|
|
#include <nfs/nfsrvcache.h>
|
|
#include <nfs/nfsmount.h>
|
|
#include <nfs/nfsnode.h>
|
|
#include <nfs/nqnfs.h>
|
|
#include <nfs/nfsrtt.h>
|
|
|
|
static MALLOC_DEFINE(M_NFSSVC, "NFS srvsock", "Nfs server structure");
|
|
|
|
/* Global defs. */
|
|
extern int (*nfsrv3_procs[NFS_NPROCS]) __P((struct nfsrv_descript *nd,
|
|
struct nfssvc_sock *slp,
|
|
struct proc *procp,
|
|
struct mbuf **mreqp));
|
|
extern int nfs_numasync;
|
|
extern time_t nqnfsstarttime;
|
|
extern int nqsrv_writeslack;
|
|
extern int nfsrtton;
|
|
extern struct nfsstats nfsstats;
|
|
extern int nfsrvw_procrastinate;
|
|
extern int nfsrvw_procrastinate_v3;
|
|
struct nfssvc_sock *nfs_udpsock, *nfs_cltpsock;
|
|
static int nuidhash_max = NFS_MAXUIDHASH;
|
|
|
|
static void nfsrv_zapsock __P((struct nfssvc_sock *slp));
|
|
static int nfssvc_iod __P((struct proc *));
|
|
|
|
#define TRUE 1
|
|
#define FALSE 0
|
|
|
|
static int nfs_asyncdaemon[NFS_MAXASYNCDAEMON];
|
|
|
|
#ifndef NFS_NOSERVER
|
|
int nfsd_waiting = 0;
|
|
static struct nfsdrt nfsdrt;
|
|
static int nfs_numnfsd = 0;
|
|
static int notstarted = 1;
|
|
static int modify_flag = 0;
|
|
static void nfsd_rt __P((int sotype, struct nfsrv_descript *nd,
|
|
int cacherep));
|
|
static int nfssvc_addsock __P((struct file *, struct sockaddr *,
|
|
struct proc *));
|
|
static int nfssvc_nfsd __P((struct nfsd_srvargs *,caddr_t,struct proc *));
|
|
|
|
static int nfs_privport = 0;
|
|
SYSCTL_INT(_vfs_nfs, NFS_NFSPRIVPORT, nfs_privport, CTLFLAG_RW, &nfs_privport, 0, "");
|
|
SYSCTL_INT(_vfs_nfs, OID_AUTO, gatherdelay, CTLFLAG_RW, &nfsrvw_procrastinate, 0, "");
|
|
SYSCTL_INT(_vfs_nfs, OID_AUTO, gatherdelay_v3, CTLFLAG_RW, &nfsrvw_procrastinate_v3, 0, "");
|
|
|
|
/*
|
|
* NFS server system calls
|
|
* getfh() lives here too, but maybe should move to kern/vfs_syscalls.c
|
|
*/
|
|
|
|
/*
|
|
* Get file handle system call
|
|
*/
|
|
#ifndef _SYS_SYSPROTO_H_
|
|
struct getfh_args {
|
|
char *fname;
|
|
fhandle_t *fhp;
|
|
};
|
|
#endif
|
|
int
|
|
getfh(p, uap)
|
|
struct proc *p;
|
|
register struct getfh_args *uap;
|
|
{
|
|
register struct vnode *vp;
|
|
fhandle_t fh;
|
|
int error;
|
|
struct nameidata nd;
|
|
|
|
/*
|
|
* Must be super user
|
|
*/
|
|
error = suser(p->p_ucred, &p->p_acflag);
|
|
if(error)
|
|
return (error);
|
|
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, uap->fname, p);
|
|
error = namei(&nd);
|
|
if (error)
|
|
return (error);
|
|
vp = nd.ni_vp;
|
|
bzero((caddr_t)&fh, sizeof(fh));
|
|
fh.fh_fsid = vp->v_mount->mnt_stat.f_fsid;
|
|
error = VFS_VPTOFH(vp, &fh.fh_fid);
|
|
vput(vp);
|
|
if (error)
|
|
return (error);
|
|
error = copyout((caddr_t)&fh, (caddr_t)uap->fhp, sizeof (fh));
|
|
return (error);
|
|
}
|
|
|
|
#endif /* NFS_NOSERVER */
|
|
/*
|
|
* Nfs server psuedo system call for the nfsd's
|
|
* Based on the flag value it either:
|
|
* - adds a socket to the selection list
|
|
* - remains in the kernel as an nfsd
|
|
* - remains in the kernel as an nfsiod
|
|
*/
|
|
#ifndef _SYS_SYSPROTO_H_
|
|
struct nfssvc_args {
|
|
int flag;
|
|
caddr_t argp;
|
|
};
|
|
#endif
|
|
int
|
|
nfssvc(p, uap)
|
|
struct proc *p;
|
|
register struct nfssvc_args *uap;
|
|
{
|
|
#ifndef NFS_NOSERVER
|
|
struct nameidata nd;
|
|
struct file *fp;
|
|
struct sockaddr *nam;
|
|
struct nfsd_args nfsdarg;
|
|
struct nfsd_srvargs nfsd_srvargs, *nsd = &nfsd_srvargs;
|
|
struct nfsd_cargs ncd;
|
|
struct nfsd *nfsd;
|
|
struct nfssvc_sock *slp;
|
|
struct nfsuid *nuidp;
|
|
struct nfsmount *nmp;
|
|
#endif /* NFS_NOSERVER */
|
|
int error;
|
|
|
|
/*
|
|
* Must be super user
|
|
*/
|
|
error = suser(p->p_ucred, &p->p_acflag);
|
|
if(error)
|
|
return (error);
|
|
while (nfssvc_sockhead_flag & SLP_INIT) {
|
|
nfssvc_sockhead_flag |= SLP_WANTINIT;
|
|
(void) tsleep((caddr_t)&nfssvc_sockhead, PSOCK, "nfsd init", 0);
|
|
}
|
|
if (uap->flag & NFSSVC_BIOD)
|
|
error = nfssvc_iod(p);
|
|
#ifdef NFS_NOSERVER
|
|
else
|
|
error = ENXIO;
|
|
#else /* !NFS_NOSERVER */
|
|
else if (uap->flag & NFSSVC_MNTD) {
|
|
error = copyin(uap->argp, (caddr_t)&ncd, sizeof (ncd));
|
|
if (error)
|
|
return (error);
|
|
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
|
|
ncd.ncd_dirp, p);
|
|
error = namei(&nd);
|
|
if (error)
|
|
return (error);
|
|
if ((nd.ni_vp->v_flag & VROOT) == 0)
|
|
error = EINVAL;
|
|
nmp = VFSTONFS(nd.ni_vp->v_mount);
|
|
vput(nd.ni_vp);
|
|
if (error)
|
|
return (error);
|
|
if ((nmp->nm_flag & NFSMNT_MNTD) &&
|
|
(uap->flag & NFSSVC_GOTAUTH) == 0)
|
|
return (0);
|
|
nmp->nm_flag |= NFSMNT_MNTD;
|
|
error = nqnfs_clientd(nmp, p->p_ucred, &ncd, uap->flag,
|
|
uap->argp, p);
|
|
} else if (uap->flag & NFSSVC_ADDSOCK) {
|
|
error = copyin(uap->argp, (caddr_t)&nfsdarg, sizeof(nfsdarg));
|
|
if (error)
|
|
return (error);
|
|
error = getsock(p->p_fd, nfsdarg.sock, &fp);
|
|
if (error)
|
|
return (error);
|
|
/*
|
|
* Get the client address for connected sockets.
|
|
*/
|
|
if (nfsdarg.name == NULL || nfsdarg.namelen == 0)
|
|
nam = (struct sockaddr *)0;
|
|
else {
|
|
error = getsockaddr(&nam, nfsdarg.name,
|
|
nfsdarg.namelen);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
error = nfssvc_addsock(fp, nam, p);
|
|
} else {
|
|
error = copyin(uap->argp, (caddr_t)nsd, sizeof (*nsd));
|
|
if (error)
|
|
return (error);
|
|
if ((uap->flag & NFSSVC_AUTHIN) && ((nfsd = nsd->nsd_nfsd)) &&
|
|
(nfsd->nfsd_slp->ns_flag & SLP_VALID)) {
|
|
slp = nfsd->nfsd_slp;
|
|
|
|
/*
|
|
* First check to see if another nfsd has already
|
|
* added this credential.
|
|
*/
|
|
for (nuidp = NUIDHASH(slp,nsd->nsd_cr.cr_uid)->lh_first;
|
|
nuidp != 0; nuidp = nuidp->nu_hash.le_next) {
|
|
if (nuidp->nu_cr.cr_uid == nsd->nsd_cr.cr_uid &&
|
|
(!nfsd->nfsd_nd->nd_nam2 ||
|
|
netaddr_match(NU_NETFAM(nuidp),
|
|
&nuidp->nu_haddr, nfsd->nfsd_nd->nd_nam2)))
|
|
break;
|
|
}
|
|
if (nuidp) {
|
|
nfsrv_setcred(&nuidp->nu_cr,&nfsd->nfsd_nd->nd_cr);
|
|
nfsd->nfsd_nd->nd_flag |= ND_KERBFULL;
|
|
} else {
|
|
/*
|
|
* Nope, so we will.
|
|
*/
|
|
if (slp->ns_numuids < nuidhash_max) {
|
|
slp->ns_numuids++;
|
|
nuidp = (struct nfsuid *)
|
|
malloc(sizeof (struct nfsuid), M_NFSUID,
|
|
M_WAITOK);
|
|
} else
|
|
nuidp = (struct nfsuid *)0;
|
|
if ((slp->ns_flag & SLP_VALID) == 0) {
|
|
if (nuidp)
|
|
free((caddr_t)nuidp, M_NFSUID);
|
|
} else {
|
|
if (nuidp == (struct nfsuid *)0) {
|
|
nuidp = slp->ns_uidlruhead.tqh_first;
|
|
LIST_REMOVE(nuidp, nu_hash);
|
|
TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp,
|
|
nu_lru);
|
|
if (nuidp->nu_flag & NU_NAM)
|
|
FREE(nuidp->nu_nam, M_SONAME);
|
|
}
|
|
nuidp->nu_flag = 0;
|
|
nuidp->nu_cr = nsd->nsd_cr;
|
|
if (nuidp->nu_cr.cr_ngroups > NGROUPS)
|
|
nuidp->nu_cr.cr_ngroups = NGROUPS;
|
|
nuidp->nu_cr.cr_ref = 1;
|
|
nuidp->nu_timestamp = nsd->nsd_timestamp;
|
|
nuidp->nu_expire = time.tv_sec + nsd->nsd_ttl;
|
|
/*
|
|
* and save the session key in nu_key.
|
|
*/
|
|
bcopy(nsd->nsd_key, nuidp->nu_key,
|
|
sizeof (nsd->nsd_key));
|
|
if (nfsd->nfsd_nd->nd_nam2) {
|
|
struct sockaddr_in *saddr;
|
|
|
|
saddr = (struct sockaddr_in *)
|
|
nfsd->nfsd_nd->nd_nam2;
|
|
switch (saddr->sin_family) {
|
|
case AF_INET:
|
|
nuidp->nu_flag |= NU_INETADDR;
|
|
nuidp->nu_inetaddr =
|
|
saddr->sin_addr.s_addr;
|
|
break;
|
|
case AF_ISO:
|
|
default:
|
|
nuidp->nu_flag |= NU_NAM;
|
|
nuidp->nu_nam =
|
|
dup_sockaddr(nfsd->nfsd_nd->
|
|
nd_nam2, 1);
|
|
break;
|
|
};
|
|
}
|
|
TAILQ_INSERT_TAIL(&slp->ns_uidlruhead, nuidp,
|
|
nu_lru);
|
|
LIST_INSERT_HEAD(NUIDHASH(slp, nsd->nsd_uid),
|
|
nuidp, nu_hash);
|
|
nfsrv_setcred(&nuidp->nu_cr,
|
|
&nfsd->nfsd_nd->nd_cr);
|
|
nfsd->nfsd_nd->nd_flag |= ND_KERBFULL;
|
|
}
|
|
}
|
|
}
|
|
if ((uap->flag & NFSSVC_AUTHINFAIL) && (nfsd = nsd->nsd_nfsd))
|
|
nfsd->nfsd_flag |= NFSD_AUTHFAIL;
|
|
error = nfssvc_nfsd(nsd, uap->argp, p);
|
|
}
|
|
#endif /* NFS_NOSERVER */
|
|
if (error == EINTR || error == ERESTART)
|
|
error = 0;
|
|
return (error);
|
|
}
|
|
|
|
#ifndef NFS_NOSERVER
|
|
/*
|
|
* Adds a socket to the list for servicing by nfsds.
|
|
*/
|
|
static int
|
|
nfssvc_addsock(fp, mynam, p)
|
|
struct file *fp;
|
|
struct sockaddr *mynam;
|
|
struct proc *p;
|
|
{
|
|
register struct mbuf *m;
|
|
register int siz;
|
|
register struct nfssvc_sock *slp;
|
|
register struct socket *so;
|
|
struct nfssvc_sock *tslp;
|
|
int error, s;
|
|
|
|
so = (struct socket *)fp->f_data;
|
|
tslp = (struct nfssvc_sock *)0;
|
|
/*
|
|
* Add it to the list, as required.
|
|
*/
|
|
if (so->so_proto->pr_protocol == IPPROTO_UDP) {
|
|
tslp = nfs_udpsock;
|
|
if (tslp->ns_flag & SLP_VALID) {
|
|
FREE(mynam, M_SONAME);
|
|
return (EPERM);
|
|
}
|
|
#ifdef ISO
|
|
} else if (so->so_proto->pr_protocol == ISOPROTO_CLTP) {
|
|
tslp = nfs_cltpsock;
|
|
if (tslp->ns_flag & SLP_VALID) {
|
|
FREE(mynam, M_SONAME);
|
|
return (EPERM);
|
|
}
|
|
#endif /* ISO */
|
|
}
|
|
if (so->so_type == SOCK_STREAM)
|
|
siz = NFS_MAXPACKET + sizeof (u_long);
|
|
else
|
|
siz = NFS_MAXPACKET;
|
|
error = soreserve(so, siz, siz);
|
|
if (error) {
|
|
FREE(mynam, M_SONAME);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Set protocol specific options { for now TCP only } and
|
|
* reserve some space. For datagram sockets, this can get called
|
|
* repeatedly for the same socket, but that isn't harmful.
|
|
*/
|
|
if (so->so_type == SOCK_STREAM) {
|
|
MGET(m, M_WAIT, MT_SOOPTS);
|
|
*mtod(m, int *) = 1;
|
|
m->m_len = sizeof(int);
|
|
sosetopt(so, SOL_SOCKET, SO_KEEPALIVE, m, p);
|
|
}
|
|
if (so->so_proto->pr_domain->dom_family == AF_INET &&
|
|
so->so_proto->pr_protocol == IPPROTO_TCP) {
|
|
MGET(m, M_WAIT, MT_SOOPTS);
|
|
*mtod(m, int *) = 1;
|
|
m->m_len = sizeof(int);
|
|
sosetopt(so, IPPROTO_TCP, TCP_NODELAY, m, p);
|
|
}
|
|
so->so_rcv.sb_flags &= ~SB_NOINTR;
|
|
so->so_rcv.sb_timeo = 0;
|
|
so->so_snd.sb_flags &= ~SB_NOINTR;
|
|
so->so_snd.sb_timeo = 0;
|
|
if (tslp)
|
|
slp = tslp;
|
|
else {
|
|
slp = (struct nfssvc_sock *)
|
|
malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK);
|
|
bzero((caddr_t)slp, sizeof (struct nfssvc_sock));
|
|
STAILQ_INIT(&slp->ns_rec);
|
|
TAILQ_INIT(&slp->ns_uidlruhead);
|
|
TAILQ_INSERT_TAIL(&nfssvc_sockhead, slp, ns_chain);
|
|
}
|
|
slp->ns_so = so;
|
|
slp->ns_nam = mynam;
|
|
fp->f_count++;
|
|
slp->ns_fp = fp;
|
|
s = splnet();
|
|
so->so_upcallarg = (caddr_t)slp;
|
|
so->so_upcall = nfsrv_rcv;
|
|
slp->ns_flag = (SLP_VALID | SLP_NEEDQ);
|
|
nfsrv_wakenfsd(slp);
|
|
splx(s);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Called by nfssvc() for nfsds. Just loops around servicing rpc requests
|
|
* until it is killed by a signal.
|
|
*/
|
|
static int
|
|
nfssvc_nfsd(nsd, argp, p)
|
|
struct nfsd_srvargs *nsd;
|
|
caddr_t argp;
|
|
struct proc *p;
|
|
{
|
|
register struct mbuf *m;
|
|
register int siz;
|
|
register struct nfssvc_sock *slp;
|
|
register struct socket *so;
|
|
register int *solockp;
|
|
struct nfsd *nfsd = nsd->nsd_nfsd;
|
|
struct nfsrv_descript *nd = NULL;
|
|
struct mbuf *mreq;
|
|
int error = 0, cacherep, s, sotype, writes_todo;
|
|
int procrastinate;
|
|
u_quad_t cur_usec;
|
|
|
|
#ifndef nolint
|
|
cacherep = RC_DOIT;
|
|
writes_todo = 0;
|
|
#endif
|
|
if (nfsd == (struct nfsd *)0) {
|
|
nfsd = (struct nfsd *)
|
|
malloc(sizeof (struct nfsd), M_NFSD, M_WAITOK);
|
|
bzero((caddr_t)nfsd, sizeof (struct nfsd));
|
|
s = splnet();
|
|
nsd->nsd_nfsd = nfsd;
|
|
nfsd->nfsd_procp = p;
|
|
TAILQ_INSERT_TAIL(&nfsd_head, nfsd, nfsd_chain);
|
|
nfs_numnfsd++;
|
|
} else
|
|
s = splnet();
|
|
|
|
/*
|
|
* Loop getting rpc requests until SIGKILL.
|
|
*/
|
|
for (;;) {
|
|
if ((nfsd->nfsd_flag & NFSD_REQINPROG) == 0) {
|
|
while (nfsd->nfsd_slp == (struct nfssvc_sock *)0 &&
|
|
(nfsd_head_flag & NFSD_CHECKSLP) == 0) {
|
|
nfsd->nfsd_flag |= NFSD_WAITING;
|
|
nfsd_waiting++;
|
|
error = tsleep((caddr_t)nfsd, PSOCK | PCATCH,
|
|
"nfsd", 0);
|
|
nfsd_waiting--;
|
|
if (error)
|
|
goto done;
|
|
}
|
|
if (nfsd->nfsd_slp == (struct nfssvc_sock *)0 &&
|
|
(nfsd_head_flag & NFSD_CHECKSLP) != 0) {
|
|
for (slp = nfssvc_sockhead.tqh_first; slp != 0;
|
|
slp = slp->ns_chain.tqe_next) {
|
|
if ((slp->ns_flag & (SLP_VALID | SLP_DOREC))
|
|
== (SLP_VALID | SLP_DOREC)) {
|
|
slp->ns_flag &= ~SLP_DOREC;
|
|
slp->ns_sref++;
|
|
nfsd->nfsd_slp = slp;
|
|
break;
|
|
}
|
|
}
|
|
if (slp == 0)
|
|
nfsd_head_flag &= ~NFSD_CHECKSLP;
|
|
}
|
|
if ((slp = nfsd->nfsd_slp) == (struct nfssvc_sock *)0)
|
|
continue;
|
|
if (slp->ns_flag & SLP_VALID) {
|
|
if (slp->ns_flag & SLP_DISCONN)
|
|
nfsrv_zapsock(slp);
|
|
else if (slp->ns_flag & SLP_NEEDQ) {
|
|
slp->ns_flag &= ~SLP_NEEDQ;
|
|
(void) nfs_sndlock(&slp->ns_solock,
|
|
(struct nfsreq *)0);
|
|
nfsrv_rcv(slp->ns_so, (caddr_t)slp,
|
|
M_WAIT);
|
|
nfs_sndunlock(&slp->ns_solock);
|
|
}
|
|
error = nfsrv_dorec(slp, nfsd, &nd);
|
|
cur_usec = (u_quad_t)time.tv_sec * 1000000 +
|
|
(u_quad_t)time.tv_usec;
|
|
if (error && slp->ns_tq.lh_first &&
|
|
slp->ns_tq.lh_first->nd_time <= cur_usec) {
|
|
error = 0;
|
|
cacherep = RC_DOIT;
|
|
writes_todo = 1;
|
|
} else
|
|
writes_todo = 0;
|
|
nfsd->nfsd_flag |= NFSD_REQINPROG;
|
|
}
|
|
} else {
|
|
error = 0;
|
|
slp = nfsd->nfsd_slp;
|
|
}
|
|
if (error || (slp->ns_flag & SLP_VALID) == 0) {
|
|
if (nd) {
|
|
free((caddr_t)nd, M_NFSRVDESC);
|
|
nd = NULL;
|
|
}
|
|
nfsd->nfsd_slp = (struct nfssvc_sock *)0;
|
|
nfsd->nfsd_flag &= ~NFSD_REQINPROG;
|
|
nfsrv_slpderef(slp);
|
|
continue;
|
|
}
|
|
splx(s);
|
|
so = slp->ns_so;
|
|
sotype = so->so_type;
|
|
if (so->so_proto->pr_flags & PR_CONNREQUIRED)
|
|
solockp = &slp->ns_solock;
|
|
else
|
|
solockp = (int *)0;
|
|
if (nd) {
|
|
gettime(&nd->nd_starttime);
|
|
if (nd->nd_nam2)
|
|
nd->nd_nam = nd->nd_nam2;
|
|
else
|
|
nd->nd_nam = slp->ns_nam;
|
|
|
|
/*
|
|
* Check to see if authorization is needed.
|
|
*/
|
|
if (nfsd->nfsd_flag & NFSD_NEEDAUTH) {
|
|
nfsd->nfsd_flag &= ~NFSD_NEEDAUTH;
|
|
nsd->nsd_haddr =
|
|
((struct sockaddr_in *)
|
|
nd->nd_nam)->sin_addr.s_addr;
|
|
nsd->nsd_authlen = nfsd->nfsd_authlen;
|
|
nsd->nsd_verflen = nfsd->nfsd_verflen;
|
|
if (!copyout(nfsd->nfsd_authstr,nsd->nsd_authstr,
|
|
nfsd->nfsd_authlen) &&
|
|
!copyout(nfsd->nfsd_verfstr, nsd->nsd_verfstr,
|
|
nfsd->nfsd_verflen) &&
|
|
!copyout((caddr_t)nsd, argp, sizeof (*nsd)))
|
|
return (ENEEDAUTH);
|
|
cacherep = RC_DROPIT;
|
|
} else
|
|
cacherep = nfsrv_getcache(nd, slp, &mreq);
|
|
|
|
/*
|
|
* Check for just starting up for NQNFS and send
|
|
* fake "try again later" replies to the NQNFS clients.
|
|
*/
|
|
if (notstarted && nqnfsstarttime <= time.tv_sec) {
|
|
if (modify_flag) {
|
|
nqnfsstarttime = time.tv_sec + nqsrv_writeslack;
|
|
modify_flag = 0;
|
|
} else
|
|
notstarted = 0;
|
|
}
|
|
if (notstarted) {
|
|
if ((nd->nd_flag & ND_NQNFS) == 0)
|
|
cacherep = RC_DROPIT;
|
|
else if (nd->nd_procnum != NFSPROC_WRITE) {
|
|
nd->nd_procnum = NFSPROC_NOOP;
|
|
nd->nd_repstat = NQNFS_TRYLATER;
|
|
cacherep = RC_DOIT;
|
|
} else
|
|
modify_flag = 1;
|
|
} else if (nfsd->nfsd_flag & NFSD_AUTHFAIL) {
|
|
nfsd->nfsd_flag &= ~NFSD_AUTHFAIL;
|
|
nd->nd_procnum = NFSPROC_NOOP;
|
|
nd->nd_repstat = (NFSERR_AUTHERR | AUTH_TOOWEAK);
|
|
cacherep = RC_DOIT;
|
|
} else if (nfs_privport) {
|
|
/* Check if source port is privileged */
|
|
u_short port;
|
|
struct sockaddr *nam = nd->nd_nam;
|
|
struct sockaddr_in *sin;
|
|
|
|
sin = (struct sockaddr_in *)nam;
|
|
port = ntohs(sin->sin_port);
|
|
if (port >= IPPORT_RESERVED &&
|
|
nd->nd_procnum != NFSPROC_NULL) {
|
|
nd->nd_procnum = NFSPROC_NOOP;
|
|
nd->nd_repstat = (NFSERR_AUTHERR | AUTH_TOOWEAK);
|
|
cacherep = RC_DOIT;
|
|
printf("NFS request from unprivileged port (%s:%d)\n",
|
|
inet_ntoa(sin->sin_addr), port);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* Loop to get all the write rpc relies that have been
|
|
* gathered together.
|
|
*/
|
|
do {
|
|
switch (cacherep) {
|
|
case RC_DOIT:
|
|
if (nd && (nd->nd_flag & ND_NFSV3))
|
|
procrastinate = nfsrvw_procrastinate_v3;
|
|
else
|
|
procrastinate = nfsrvw_procrastinate;
|
|
if (writes_todo || (nd->nd_procnum == NFSPROC_WRITE &&
|
|
procrastinate > 0 && !notstarted))
|
|
error = nfsrv_writegather(&nd, slp,
|
|
nfsd->nfsd_procp, &mreq);
|
|
else
|
|
error = (*(nfsrv3_procs[nd->nd_procnum]))(nd,
|
|
slp, nfsd->nfsd_procp, &mreq);
|
|
if (mreq == NULL)
|
|
break;
|
|
if (error) {
|
|
if (nd->nd_procnum != NQNFSPROC_VACATED)
|
|
nfsstats.srv_errs++;
|
|
nfsrv_updatecache(nd, FALSE, mreq);
|
|
if (nd->nd_nam2)
|
|
FREE(nd->nd_nam2, M_SONAME);
|
|
break;
|
|
}
|
|
nfsstats.srvrpccnt[nd->nd_procnum]++;
|
|
nfsrv_updatecache(nd, TRUE, mreq);
|
|
nd->nd_mrep = (struct mbuf *)0;
|
|
case RC_REPLY:
|
|
m = mreq;
|
|
siz = 0;
|
|
while (m) {
|
|
siz += m->m_len;
|
|
m = m->m_next;
|
|
}
|
|
if (siz <= 0 || siz > NFS_MAXPACKET) {
|
|
printf("mbuf siz=%d\n",siz);
|
|
panic("Bad nfs svc reply");
|
|
}
|
|
m = mreq;
|
|
m->m_pkthdr.len = siz;
|
|
m->m_pkthdr.rcvif = (struct ifnet *)0;
|
|
/*
|
|
* For stream protocols, prepend a Sun RPC
|
|
* Record Mark.
|
|
*/
|
|
if (sotype == SOCK_STREAM) {
|
|
M_PREPEND(m, NFSX_UNSIGNED, M_WAIT);
|
|
*mtod(m, u_long *) = htonl(0x80000000 | siz);
|
|
}
|
|
if (solockp)
|
|
(void) nfs_sndlock(solockp, (struct nfsreq *)0);
|
|
if (slp->ns_flag & SLP_VALID)
|
|
error = nfs_send(so, nd->nd_nam2, m, NULL);
|
|
else {
|
|
error = EPIPE;
|
|
m_freem(m);
|
|
}
|
|
if (nfsrtton)
|
|
nfsd_rt(sotype, nd, cacherep);
|
|
if (nd->nd_nam2)
|
|
FREE(nd->nd_nam2, M_SONAME);
|
|
if (nd->nd_mrep)
|
|
m_freem(nd->nd_mrep);
|
|
if (error == EPIPE)
|
|
nfsrv_zapsock(slp);
|
|
if (solockp)
|
|
nfs_sndunlock(solockp);
|
|
if (error == EINTR || error == ERESTART) {
|
|
free((caddr_t)nd, M_NFSRVDESC);
|
|
nfsrv_slpderef(slp);
|
|
s = splnet();
|
|
goto done;
|
|
}
|
|
break;
|
|
case RC_DROPIT:
|
|
if (nfsrtton)
|
|
nfsd_rt(sotype, nd, cacherep);
|
|
m_freem(nd->nd_mrep);
|
|
FREE(nd->nd_nam2, M_SONAME);
|
|
break;
|
|
};
|
|
if (nd) {
|
|
FREE((caddr_t)nd, M_NFSRVDESC);
|
|
nd = NULL;
|
|
}
|
|
|
|
/*
|
|
* Check to see if there are outstanding writes that
|
|
* need to be serviced.
|
|
*/
|
|
cur_usec = (u_quad_t)time.tv_sec * 1000000 +
|
|
(u_quad_t)time.tv_usec;
|
|
s = splsoftclock();
|
|
if (slp->ns_tq.lh_first &&
|
|
slp->ns_tq.lh_first->nd_time <= cur_usec) {
|
|
cacherep = RC_DOIT;
|
|
writes_todo = 1;
|
|
} else
|
|
writes_todo = 0;
|
|
splx(s);
|
|
} while (writes_todo);
|
|
s = splnet();
|
|
if (nfsrv_dorec(slp, nfsd, &nd)) {
|
|
nfsd->nfsd_flag &= ~NFSD_REQINPROG;
|
|
nfsd->nfsd_slp = NULL;
|
|
nfsrv_slpderef(slp);
|
|
}
|
|
}
|
|
done:
|
|
TAILQ_REMOVE(&nfsd_head, nfsd, nfsd_chain);
|
|
splx(s);
|
|
free((caddr_t)nfsd, M_NFSD);
|
|
nsd->nsd_nfsd = (struct nfsd *)0;
|
|
if (--nfs_numnfsd == 0)
|
|
nfsrv_init(TRUE); /* Reinitialize everything */
|
|
return (error);
|
|
}
|
|
#endif /* NFS_NOSERVER */
|
|
|
|
int nfs_defect = 0;
|
|
SYSCTL_INT(_vfs_nfs, OID_AUTO, defect, CTLFLAG_RW, &nfs_defect, 0, "");
|
|
|
|
/*
|
|
* Asynchronous I/O daemons for client nfs.
|
|
* They do read-ahead and write-behind operations on the block I/O cache.
|
|
* Never returns unless it fails or gets killed.
|
|
*/
|
|
static int
|
|
nfssvc_iod(p)
|
|
struct proc *p;
|
|
{
|
|
register struct buf *bp;
|
|
register int i, myiod;
|
|
struct nfsmount *nmp;
|
|
int error = 0;
|
|
|
|
/*
|
|
* Assign my position or return error if too many already running
|
|
*/
|
|
myiod = -1;
|
|
for (i = 0; i < NFS_MAXASYNCDAEMON; i++)
|
|
if (nfs_asyncdaemon[i] == 0) {
|
|
nfs_asyncdaemon[i]++;
|
|
myiod = i;
|
|
break;
|
|
}
|
|
if (myiod == -1)
|
|
return (EBUSY);
|
|
nfs_numasync++;
|
|
/*
|
|
* Just loop around doin our stuff until SIGKILL
|
|
*/
|
|
for (;;) {
|
|
while (((nmp = nfs_iodmount[myiod]) == NULL
|
|
|| nmp->nm_bufq.tqh_first == NULL)
|
|
&& error == 0) {
|
|
if (nmp)
|
|
nmp->nm_bufqiods--;
|
|
nfs_iodwant[myiod] = p;
|
|
nfs_iodmount[myiod] = NULL;
|
|
error = tsleep((caddr_t)&nfs_iodwant[myiod],
|
|
PWAIT | PCATCH, "nfsidl", 0);
|
|
}
|
|
if (error) {
|
|
nfs_asyncdaemon[myiod] = 0;
|
|
if (nmp) nmp->nm_bufqiods--;
|
|
nfs_iodwant[myiod] = NULL;
|
|
nfs_iodmount[myiod] = NULL;
|
|
nfs_numasync--;
|
|
return (error);
|
|
}
|
|
while ((bp = nmp->nm_bufq.tqh_first) != NULL) {
|
|
/* Take one off the front of the list */
|
|
TAILQ_REMOVE(&nmp->nm_bufq, bp, b_freelist);
|
|
nmp->nm_bufqlen--;
|
|
if (nmp->nm_bufqwant && nmp->nm_bufqlen < 2 * nfs_numasync) {
|
|
nmp->nm_bufqwant = FALSE;
|
|
wakeup(&nmp->nm_bufq);
|
|
}
|
|
if (bp->b_flags & B_READ)
|
|
(void) nfs_doio(bp, bp->b_rcred, (struct proc *)0);
|
|
else
|
|
(void) nfs_doio(bp, bp->b_wcred, (struct proc *)0);
|
|
|
|
/*
|
|
* If there are more than one iod on this mount, then defect
|
|
* so that the iods can be shared out fairly between the mounts
|
|
*/
|
|
if (nfs_defect && nmp->nm_bufqiods > 1) {
|
|
NFS_DPF(ASYNCIO,
|
|
("nfssvc_iod: iod %d defecting from mount %p\n",
|
|
myiod, nmp));
|
|
nfs_iodmount[myiod] = NULL;
|
|
nmp->nm_bufqiods--;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Shut down a socket associated with an nfssvc_sock structure.
|
|
* Should be called with the send lock set, if required.
|
|
* The trick here is to increment the sref at the start, so that the nfsds
|
|
* will stop using it and clear ns_flag at the end so that it will not be
|
|
* reassigned during cleanup.
|
|
*/
|
|
static void
|
|
nfsrv_zapsock(slp)
|
|
register struct nfssvc_sock *slp;
|
|
{
|
|
register struct nfsuid *nuidp, *nnuidp;
|
|
register struct nfsrv_descript *nwp, *nnwp;
|
|
struct socket *so;
|
|
struct file *fp;
|
|
struct nfsrv_rec *rec;
|
|
int s;
|
|
|
|
slp->ns_flag &= ~SLP_ALLFLAGS;
|
|
fp = slp->ns_fp;
|
|
if (fp) {
|
|
slp->ns_fp = (struct file *)0;
|
|
so = slp->ns_so;
|
|
so->so_upcall = NULL;
|
|
soshutdown(so, 2);
|
|
closef(fp, (struct proc *)0);
|
|
if (slp->ns_nam)
|
|
FREE(slp->ns_nam, M_SONAME);
|
|
m_freem(slp->ns_raw);
|
|
while (rec = STAILQ_FIRST(&slp->ns_rec)) {
|
|
STAILQ_REMOVE_HEAD(&slp->ns_rec, nr_link);
|
|
if (rec->nr_address)
|
|
FREE(rec->nr_address, M_SONAME);
|
|
m_freem(rec->nr_packet);
|
|
free(rec, M_NFSRVDESC);
|
|
}
|
|
for (nuidp = slp->ns_uidlruhead.tqh_first; nuidp != 0;
|
|
nuidp = nnuidp) {
|
|
nnuidp = nuidp->nu_lru.tqe_next;
|
|
LIST_REMOVE(nuidp, nu_hash);
|
|
TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp, nu_lru);
|
|
if (nuidp->nu_flag & NU_NAM)
|
|
FREE(nuidp->nu_nam, M_SONAME);
|
|
free((caddr_t)nuidp, M_NFSUID);
|
|
}
|
|
s = splsoftclock();
|
|
for (nwp = slp->ns_tq.lh_first; nwp; nwp = nnwp) {
|
|
nnwp = nwp->nd_tq.le_next;
|
|
LIST_REMOVE(nwp, nd_tq);
|
|
free((caddr_t)nwp, M_NFSRVDESC);
|
|
}
|
|
LIST_INIT(&slp->ns_tq);
|
|
splx(s);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get an authorization string for the uid by having the mount_nfs sitting
|
|
* on this mount point porpous out of the kernel and do it.
|
|
*/
|
|
int
|
|
nfs_getauth(nmp, rep, cred, auth_str, auth_len, verf_str, verf_len, key)
|
|
register struct nfsmount *nmp;
|
|
struct nfsreq *rep;
|
|
struct ucred *cred;
|
|
char **auth_str;
|
|
int *auth_len;
|
|
char *verf_str;
|
|
int *verf_len;
|
|
NFSKERBKEY_T key; /* return session key */
|
|
{
|
|
int error = 0;
|
|
|
|
while ((nmp->nm_flag & NFSMNT_WAITAUTH) == 0) {
|
|
nmp->nm_flag |= NFSMNT_WANTAUTH;
|
|
(void) tsleep((caddr_t)&nmp->nm_authtype, PSOCK,
|
|
"nfsauth1", 2 * hz);
|
|
error = nfs_sigintr(nmp, rep, rep->r_procp);
|
|
if (error) {
|
|
nmp->nm_flag &= ~NFSMNT_WANTAUTH;
|
|
return (error);
|
|
}
|
|
}
|
|
nmp->nm_flag &= ~(NFSMNT_WAITAUTH | NFSMNT_WANTAUTH);
|
|
nmp->nm_authstr = *auth_str = (char *)malloc(RPCAUTH_MAXSIZ, M_TEMP, M_WAITOK);
|
|
nmp->nm_authlen = RPCAUTH_MAXSIZ;
|
|
nmp->nm_verfstr = verf_str;
|
|
nmp->nm_verflen = *verf_len;
|
|
nmp->nm_authuid = cred->cr_uid;
|
|
wakeup((caddr_t)&nmp->nm_authstr);
|
|
|
|
/*
|
|
* And wait for mount_nfs to do its stuff.
|
|
*/
|
|
while ((nmp->nm_flag & NFSMNT_HASAUTH) == 0 && error == 0) {
|
|
(void) tsleep((caddr_t)&nmp->nm_authlen, PSOCK,
|
|
"nfsauth2", 2 * hz);
|
|
error = nfs_sigintr(nmp, rep, rep->r_procp);
|
|
}
|
|
if (nmp->nm_flag & NFSMNT_AUTHERR) {
|
|
nmp->nm_flag &= ~NFSMNT_AUTHERR;
|
|
error = EAUTH;
|
|
}
|
|
if (error)
|
|
free((caddr_t)*auth_str, M_TEMP);
|
|
else {
|
|
*auth_len = nmp->nm_authlen;
|
|
*verf_len = nmp->nm_verflen;
|
|
bcopy((caddr_t)nmp->nm_key, (caddr_t)key, sizeof (key));
|
|
}
|
|
nmp->nm_flag &= ~NFSMNT_HASAUTH;
|
|
nmp->nm_flag |= NFSMNT_WAITAUTH;
|
|
if (nmp->nm_flag & NFSMNT_WANTAUTH) {
|
|
nmp->nm_flag &= ~NFSMNT_WANTAUTH;
|
|
wakeup((caddr_t)&nmp->nm_authtype);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Get a nickname authenticator and verifier.
|
|
*/
|
|
int
|
|
nfs_getnickauth(nmp, cred, auth_str, auth_len, verf_str, verf_len)
|
|
struct nfsmount *nmp;
|
|
struct ucred *cred;
|
|
char **auth_str;
|
|
int *auth_len;
|
|
char *verf_str;
|
|
int verf_len;
|
|
{
|
|
register struct nfsuid *nuidp;
|
|
register u_long *nickp, *verfp;
|
|
struct timeval ktvin, ktvout;
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (verf_len < (4 * NFSX_UNSIGNED))
|
|
panic("nfs_getnickauth verf too small");
|
|
#endif
|
|
for (nuidp = NMUIDHASH(nmp, cred->cr_uid)->lh_first;
|
|
nuidp != 0; nuidp = nuidp->nu_hash.le_next) {
|
|
if (nuidp->nu_cr.cr_uid == cred->cr_uid)
|
|
break;
|
|
}
|
|
if (!nuidp || nuidp->nu_expire < time.tv_sec)
|
|
return (EACCES);
|
|
|
|
/*
|
|
* Move to the end of the lru list (end of lru == most recently used).
|
|
*/
|
|
TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, nu_lru);
|
|
TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp, nu_lru);
|
|
|
|
nickp = (u_long *)malloc(2 * NFSX_UNSIGNED, M_TEMP, M_WAITOK);
|
|
*nickp++ = txdr_unsigned(RPCAKN_NICKNAME);
|
|
*nickp = txdr_unsigned(nuidp->nu_nickname);
|
|
*auth_str = (char *)nickp;
|
|
*auth_len = 2 * NFSX_UNSIGNED;
|
|
|
|
/*
|
|
* Now we must encrypt the verifier and package it up.
|
|
*/
|
|
verfp = (u_long *)verf_str;
|
|
*verfp++ = txdr_unsigned(RPCAKN_NICKNAME);
|
|
if (time.tv_sec > nuidp->nu_timestamp.tv_sec ||
|
|
(time.tv_sec == nuidp->nu_timestamp.tv_sec &&
|
|
time.tv_usec > nuidp->nu_timestamp.tv_usec))
|
|
gettime(&nuidp->nu_timestamp);
|
|
else
|
|
nuidp->nu_timestamp.tv_usec++;
|
|
ktvin.tv_sec = txdr_unsigned(nuidp->nu_timestamp.tv_sec);
|
|
ktvin.tv_usec = txdr_unsigned(nuidp->nu_timestamp.tv_usec);
|
|
|
|
/*
|
|
* Now encrypt the timestamp verifier in ecb mode using the session
|
|
* key.
|
|
*/
|
|
#ifdef NFSKERB
|
|
XXX
|
|
#endif
|
|
|
|
*verfp++ = ktvout.tv_sec;
|
|
*verfp++ = ktvout.tv_usec;
|
|
*verfp = 0;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Save the current nickname in a hash list entry on the mount point.
|
|
*/
|
|
int
|
|
nfs_savenickauth(nmp, cred, len, key, mdp, dposp, mrep)
|
|
register struct nfsmount *nmp;
|
|
struct ucred *cred;
|
|
int len;
|
|
NFSKERBKEY_T key;
|
|
struct mbuf **mdp;
|
|
char **dposp;
|
|
struct mbuf *mrep;
|
|
{
|
|
register struct nfsuid *nuidp;
|
|
register u_long *tl;
|
|
register long t1;
|
|
struct mbuf *md = *mdp;
|
|
struct timeval ktvin, ktvout;
|
|
u_long nick;
|
|
char *dpos = *dposp, *cp2;
|
|
int deltasec, error = 0;
|
|
|
|
if (len == (3 * NFSX_UNSIGNED)) {
|
|
nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
|
|
ktvin.tv_sec = *tl++;
|
|
ktvin.tv_usec = *tl++;
|
|
nick = fxdr_unsigned(u_long, *tl);
|
|
|
|
/*
|
|
* Decrypt the timestamp in ecb mode.
|
|
*/
|
|
#ifdef NFSKERB
|
|
XXX
|
|
#endif
|
|
ktvout.tv_sec = fxdr_unsigned(long, ktvout.tv_sec);
|
|
ktvout.tv_usec = fxdr_unsigned(long, ktvout.tv_usec);
|
|
deltasec = time.tv_sec - ktvout.tv_sec;
|
|
if (deltasec < 0)
|
|
deltasec = -deltasec;
|
|
/*
|
|
* If ok, add it to the hash list for the mount point.
|
|
*/
|
|
if (deltasec <= NFS_KERBCLOCKSKEW) {
|
|
if (nmp->nm_numuids < nuidhash_max) {
|
|
nmp->nm_numuids++;
|
|
nuidp = (struct nfsuid *)
|
|
malloc(sizeof (struct nfsuid), M_NFSUID,
|
|
M_WAITOK);
|
|
} else {
|
|
nuidp = nmp->nm_uidlruhead.tqh_first;
|
|
LIST_REMOVE(nuidp, nu_hash);
|
|
TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp,
|
|
nu_lru);
|
|
}
|
|
nuidp->nu_flag = 0;
|
|
nuidp->nu_cr.cr_uid = cred->cr_uid;
|
|
nuidp->nu_expire = time.tv_sec + NFS_KERBTTL;
|
|
nuidp->nu_timestamp = ktvout;
|
|
nuidp->nu_nickname = nick;
|
|
bcopy(key, nuidp->nu_key, sizeof (key));
|
|
TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp,
|
|
nu_lru);
|
|
LIST_INSERT_HEAD(NMUIDHASH(nmp, cred->cr_uid),
|
|
nuidp, nu_hash);
|
|
}
|
|
} else
|
|
nfsm_adv(nfsm_rndup(len));
|
|
nfsmout:
|
|
*mdp = md;
|
|
*dposp = dpos;
|
|
return (error);
|
|
}
|
|
|
|
#ifndef NFS_NOSERVER
|
|
|
|
/*
|
|
* Derefence a server socket structure. If it has no more references and
|
|
* is no longer valid, you can throw it away.
|
|
*/
|
|
void
|
|
nfsrv_slpderef(slp)
|
|
register struct nfssvc_sock *slp;
|
|
{
|
|
if (--(slp->ns_sref) == 0 && (slp->ns_flag & SLP_VALID) == 0) {
|
|
TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain);
|
|
free((caddr_t)slp, M_NFSSVC);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize the data structures for the server.
|
|
* Handshake with any new nfsds starting up to avoid any chance of
|
|
* corruption.
|
|
*/
|
|
void
|
|
nfsrv_init(terminating)
|
|
int terminating;
|
|
{
|
|
register struct nfssvc_sock *slp, *nslp;
|
|
|
|
if (nfssvc_sockhead_flag & SLP_INIT)
|
|
panic("nfsd init");
|
|
nfssvc_sockhead_flag |= SLP_INIT;
|
|
if (terminating) {
|
|
for (slp = nfssvc_sockhead.tqh_first; slp != 0; slp = nslp) {
|
|
nslp = slp->ns_chain.tqe_next;
|
|
if (slp->ns_flag & SLP_VALID)
|
|
nfsrv_zapsock(slp);
|
|
TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain);
|
|
free((caddr_t)slp, M_NFSSVC);
|
|
}
|
|
nfsrv_cleancache(); /* And clear out server cache */
|
|
} else
|
|
nfs_pub.np_valid = 0;
|
|
|
|
TAILQ_INIT(&nfssvc_sockhead);
|
|
nfssvc_sockhead_flag &= ~SLP_INIT;
|
|
if (nfssvc_sockhead_flag & SLP_WANTINIT) {
|
|
nfssvc_sockhead_flag &= ~SLP_WANTINIT;
|
|
wakeup((caddr_t)&nfssvc_sockhead);
|
|
}
|
|
|
|
TAILQ_INIT(&nfsd_head);
|
|
nfsd_head_flag &= ~NFSD_CHECKSLP;
|
|
|
|
nfs_udpsock = (struct nfssvc_sock *)
|
|
malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK);
|
|
bzero((caddr_t)nfs_udpsock, sizeof (struct nfssvc_sock));
|
|
STAILQ_INIT(&nfs_udpsock->ns_rec);
|
|
TAILQ_INIT(&nfs_udpsock->ns_uidlruhead);
|
|
TAILQ_INSERT_HEAD(&nfssvc_sockhead, nfs_udpsock, ns_chain);
|
|
|
|
nfs_cltpsock = (struct nfssvc_sock *)
|
|
malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK);
|
|
bzero((caddr_t)nfs_cltpsock, sizeof (struct nfssvc_sock));
|
|
STAILQ_INIT(&nfs_cltpsock->ns_rec);
|
|
TAILQ_INIT(&nfs_cltpsock->ns_uidlruhead);
|
|
TAILQ_INSERT_TAIL(&nfssvc_sockhead, nfs_cltpsock, ns_chain);
|
|
}
|
|
|
|
/*
|
|
* Add entries to the server monitor log.
|
|
*/
|
|
static void
|
|
nfsd_rt(sotype, nd, cacherep)
|
|
int sotype;
|
|
register struct nfsrv_descript *nd;
|
|
int cacherep;
|
|
{
|
|
register struct drt *rt;
|
|
|
|
rt = &nfsdrt.drt[nfsdrt.pos];
|
|
if (cacherep == RC_DOIT)
|
|
rt->flag = 0;
|
|
else if (cacherep == RC_REPLY)
|
|
rt->flag = DRT_CACHEREPLY;
|
|
else
|
|
rt->flag = DRT_CACHEDROP;
|
|
if (sotype == SOCK_STREAM)
|
|
rt->flag |= DRT_TCP;
|
|
if (nd->nd_flag & ND_NQNFS)
|
|
rt->flag |= DRT_NQNFS;
|
|
else if (nd->nd_flag & ND_NFSV3)
|
|
rt->flag |= DRT_NFSV3;
|
|
rt->proc = nd->nd_procnum;
|
|
if (nd->nd_nam->sa_family == AF_INET)
|
|
rt->ipadr = ((struct sockaddr_in *)nd->nd_nam)->sin_addr.s_addr;
|
|
else
|
|
rt->ipadr = INADDR_ANY;
|
|
rt->resptime = ((time.tv_sec - nd->nd_starttime.tv_sec) * 1000000) +
|
|
(time.tv_usec - nd->nd_starttime.tv_usec);
|
|
gettime(&rt->tstamp);
|
|
nfsdrt.pos = (nfsdrt.pos + 1) % NFSRTTLOGSIZ;
|
|
}
|
|
#endif /* NFS_NOSERVER */
|