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freebsd-dev/sys/fs/smbfs/smbfs_smb.c
Tim J. Robbins 2a4ad25895 Send the close request to the SMB server in smbfs_inactive(), instead of 
smbfs_close(). This fixes paging to and from mmap()'d regions of smbfs
files after the descriptor has been closed, and makes thttpd, GNU ld,
and perhaps more things work that depend on being able to do this.

PR:		48291
2003-06-17 12:58:02 +00:00

1508 lines
38 KiB
C
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/*
* Copyright (c) 2000-2001 Boris Popov
* All rights reserved.
*
* 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 Boris Popov.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/lock.h>
#include <sys/vnode.h>
#include <sys/mbuf.h>
#include <sys/mount.h>
#ifdef USE_MD5_HASH
#include <sys/md5.h>
#endif
#include <netsmb/smb.h>
#include <netsmb/smb_subr.h>
#include <netsmb/smb_rq.h>
#include <netsmb/smb_conn.h>
#include <fs/smbfs/smbfs.h>
#include <fs/smbfs/smbfs_node.h>
#include <fs/smbfs/smbfs_subr.h>
/*
* Lack of inode numbers leads us to the problem of generating them.
* Partially this problem can be solved by having a dir/file cache
* with inode numbers generated from the incremented by one counter.
* However this way will require too much kernel memory, gives all
* sorts of locking and consistency problems, not to mentinon counter overflows.
* So, I'm decided to use a hash function to generate pseudo random (and unique)
* inode numbers.
*/
static long
smbfs_getino(struct smbnode *dnp, const char *name, int nmlen)
{
#ifdef USE_MD5_HASH
MD5_CTX md5;
u_int32_t state[4];
long ino;
int i;
MD5Init(&md5);
MD5Update(&md5, name, nmlen);
MD5Final((u_char *)state, &md5);
for (i = 0, ino = 0; i < 4; i++)
ino += state[i];
return dnp->n_ino + ino;
#endif
u_int32_t ino;
ino = dnp->n_ino + smbfs_hash(name, nmlen);
if (ino <= 2)
ino += 3;
return ino;
}
static int
smbfs_smb_lockandx(struct smbnode *np, int op, u_int32_t pid, off_t start, off_t end,
struct smb_cred *scred)
{
struct smb_share *ssp = np->n_mount->sm_share;
struct smb_rq rq, *rqp = &rq;
struct mbchain *mbp;
u_char ltype = 0;
int error;
if (op == SMB_LOCK_SHARED)
ltype |= SMB_LOCKING_ANDX_SHARED_LOCK;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_LOCKING_ANDX, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint8(mbp, 0xff); /* secondary command */
mb_put_uint8(mbp, 0); /* MBZ */
mb_put_uint16le(mbp, 0);
mb_put_mem(mbp, (caddr_t)&np->n_fid, 2, MB_MSYSTEM);
mb_put_uint8(mbp, ltype); /* locktype */
mb_put_uint8(mbp, 0); /* oplocklevel - 0 seems is NO_OPLOCK */
mb_put_uint32le(mbp, 0); /* timeout - break immediately */
mb_put_uint16le(mbp, op == SMB_LOCK_RELEASE ? 1 : 0);
mb_put_uint16le(mbp, op == SMB_LOCK_RELEASE ? 0 : 1);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint16le(mbp, pid);
mb_put_uint32le(mbp, start);
mb_put_uint32le(mbp, end - start);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
smb_rq_done(rqp);
return error;
}
int
smbfs_smb_lock(struct smbnode *np, int op, caddr_t id,
off_t start, off_t end, struct smb_cred *scred)
{
struct smb_share *ssp = np->n_mount->sm_share;
if (SMB_DIALECT(SSTOVC(ssp)) < SMB_DIALECT_LANMAN1_0)
/*
* TODO: use LOCK_BYTE_RANGE here.
*/
return EINVAL;
else
return smbfs_smb_lockandx(np, op, (uintptr_t)id, start, end, scred);
}
static int
smbfs_smb_qpathinfo(struct smbnode *np, struct smbfattr *fap,
struct smb_cred *scred, short infolevel)
{
struct smb_share *ssp = np->n_mount->sm_share;
struct smb_vc *vcp = SSTOVC(ssp);
struct smb_t2rq *t2p;
int error, svtz, timesok = 1;
struct mbchain *mbp;
struct mdchain *mdp;
u_int16_t date, time, wattr;
int64_t lint;
u_int32_t size, dattr;
error = smb_t2_alloc(SSTOCP(ssp), SMB_TRANS2_QUERY_PATH_INFORMATION,
scred, &t2p);
if (error)
return error;
mbp = &t2p->t2_tparam;
mb_init(mbp);
if (!infolevel) {
if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12)
infolevel = SMB_QUERY_FILE_STANDARD;
else
infolevel = SMB_QUERY_FILE_BASIC_INFO;
}
mb_put_uint16le(mbp, infolevel);
mb_put_uint32le(mbp, 0);
/* mb_put_uint8(mbp, SMB_DT_ASCII); specs are wrong */
error = smbfs_fullpath(mbp, vcp, np, NULL, 0);
if (error) {
smb_t2_done(t2p);
return error;
}
t2p->t2_maxpcount = 2;
t2p->t2_maxdcount = vcp->vc_txmax;
error = smb_t2_request(t2p);
if (error) {
smb_t2_done(t2p);
if (infolevel == SMB_QUERY_FILE_STANDARD || error != EINVAL)
return error;
return smbfs_smb_qpathinfo(np, fap, scred,
SMB_QUERY_FILE_STANDARD);
}
mdp = &t2p->t2_rdata;
svtz = vcp->vc_sopt.sv_tz;
switch (infolevel) {
case SMB_QUERY_FILE_STANDARD:
timesok = 0;
md_get_uint16le(mdp, NULL);
md_get_uint16le(mdp, NULL); /* creation time */
md_get_uint16le(mdp, &date);
md_get_uint16le(mdp, &time); /* access time */
if (date || time) {
timesok++;
smb_dos2unixtime(date, time, 0, svtz, &fap->fa_atime);
}
md_get_uint16le(mdp, &date);
md_get_uint16le(mdp, &time); /* modify time */
if (date || time) {
timesok++;
smb_dos2unixtime(date, time, 0, svtz, &fap->fa_mtime);
}
md_get_uint32le(mdp, &size);
fap->fa_size = size;
md_get_uint32(mdp, NULL); /* allocation size */
md_get_uint16le(mdp, &wattr);
fap->fa_attr = wattr;
break;
case SMB_QUERY_FILE_BASIC_INFO:
timesok = 0;
md_get_int64(mdp, NULL); /* creation time */
md_get_int64le(mdp, &lint);
if (lint) {
timesok++;
smb_time_NT2local(lint, svtz, &fap->fa_atime);
}
md_get_int64le(mdp, &lint);
if (lint) {
timesok++;
smb_time_NT2local(lint, svtz, &fap->fa_mtime);
}
md_get_int64le(mdp, &lint);
if (lint) {
timesok++;
smb_time_NT2local(lint, svtz, &fap->fa_ctime);
}
md_get_uint32le(mdp, &dattr);
fap->fa_attr = dattr;
md_get_uint32(mdp, NULL);
/* XXX could use ALL_INFO to get size */
break;
default:
SMBERROR("unexpected info level %d\n", infolevel);
error = EINVAL;
}
smb_t2_done(t2p);
/*
* if all times are zero (observed with FAT on NT4SP6)
* then fall back to older info level
*/
if (!timesok) {
if (infolevel != SMB_QUERY_FILE_STANDARD)
return smbfs_smb_qpathinfo(np, fap, scred,
SMB_QUERY_FILE_STANDARD);
error = EINVAL;
}
return error;
}
int
smbfs_smb_statfs2(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred)
{
struct smb_t2rq *t2p;
struct mbchain *mbp;
struct mdchain *mdp;
u_int16_t bsize;
u_int32_t units, bpu, funits;
int error;
error = smb_t2_alloc(SSTOCP(ssp), SMB_TRANS2_QUERY_FS_INFORMATION,
scred, &t2p);
if (error)
return error;
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_uint16le(mbp, SMB_INFO_ALLOCATION);
t2p->t2_maxpcount = 4;
t2p->t2_maxdcount = 4 * 4 + 2;
error = smb_t2_request(t2p);
if (error) {
smb_t2_done(t2p);
return error;
}
mdp = &t2p->t2_rdata;
md_get_uint32(mdp, NULL); /* fs id */
md_get_uint32le(mdp, &bpu);
md_get_uint32le(mdp, &units);
md_get_uint32le(mdp, &funits);
md_get_uint16le(mdp, &bsize);
sbp->f_bsize = bpu * bsize; /* fundamental filesystem block size */
sbp->f_blocks= units; /* total data blocks in filesystem */
sbp->f_bfree = funits; /* free blocks in fs */
sbp->f_bavail= funits; /* free blocks avail to non-superuser */
sbp->f_files = 0xffff; /* total file nodes in filesystem */
sbp->f_ffree = 0xffff; /* free file nodes in fs */
smb_t2_done(t2p);
return 0;
}
int
smbfs_smb_statfs(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct mdchain *mdp;
u_int16_t units, bpu, bsize, funits;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_QUERY_INFORMATION_DISK, scred);
if (error)
return error;
smb_rq_wstart(rqp);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
if (error) {
smb_rq_done(rqp);
return error;
}
smb_rq_getreply(rqp, &mdp);
md_get_uint16le(mdp, &units);
md_get_uint16le(mdp, &bpu);
md_get_uint16le(mdp, &bsize);
md_get_uint16le(mdp, &funits);
sbp->f_bsize = bpu * bsize; /* fundamental filesystem block size */
sbp->f_blocks= units; /* total data blocks in filesystem */
sbp->f_bfree = funits; /* free blocks in fs */
sbp->f_bavail= funits; /* free blocks avail to non-superuser */
sbp->f_files = 0xffff; /* total file nodes in filesystem */
sbp->f_ffree = 0xffff; /* free file nodes in fs */
smb_rq_done(rqp);
return 0;
}
static int
smbfs_smb_seteof(struct smbnode *np, int64_t newsize, struct smb_cred *scred)
{
struct smb_t2rq *t2p;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
int error;
error = smb_t2_alloc(SSTOCP(ssp), SMB_TRANS2_SET_FILE_INFORMATION,
scred, &t2p);
if (error)
return error;
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_mem(mbp, (caddr_t)&np->n_fid, 2, MB_MSYSTEM);
mb_put_uint16le(mbp, SMB_SET_FILE_END_OF_FILE_INFO);
mb_put_uint32le(mbp, 0);
mbp = &t2p->t2_tdata;
mb_init(mbp);
mb_put_int64le(mbp, newsize);
mb_put_uint32le(mbp, 0); /* padding */
mb_put_uint16le(mbp, 0);
t2p->t2_maxpcount = 2;
t2p->t2_maxdcount = 0;
error = smb_t2_request(t2p);
smb_t2_done(t2p);
return error;
}
static int
smb_smb_flush(struct smbnode *np, struct smb_cred *scred)
{
struct smb_share *ssp = np->n_mount->sm_share;
struct smb_rq rq, *rqp = &rq;
struct mbchain *mbp;
int error;
if ((np->n_flag & NOPEN) != 0 || !SMBTOV(np) ||
SMBTOV(np)->v_type != VREG)
return 0; /* not a regular open file */
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_FLUSH, scred);
if (error)
return (error);
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_mem(mbp, (caddr_t)&np->n_fid, 2, MB_MSYSTEM);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
smb_rq_done(rqp);
if (!error)
np->n_flag &= ~NFLUSHWIRE;
return (error);
}
int
smbfs_smb_flush(struct smbnode *np, struct smb_cred *scred)
{
if (np->n_flag & NFLUSHWIRE)
return (smb_smb_flush(np, scred));
return (0);
}
int
smbfs_smb_setfsize(struct smbnode *np, int newsize, struct smb_cred *scred)
{
struct smb_share *ssp = np->n_mount->sm_share;
struct smb_rq rq, *rqp = &rq;
struct mbchain *mbp;
int error;
if (!smbfs_smb_seteof(np, (int64_t) newsize, scred)) {
np->n_flag |= NFLUSHWIRE;
return (0);
}
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_WRITE, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_mem(mbp, (caddr_t)&np->n_fid, 2, MB_MSYSTEM);
mb_put_uint16le(mbp, 0);
mb_put_uint32le(mbp, newsize);
mb_put_uint16le(mbp, 0);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_DATA);
mb_put_uint16le(mbp, 0);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
smb_rq_done(rqp);
return error;
}
int
smbfs_smb_query_info(struct smbnode *np, const char *name, int len,
struct smbfattr *fap, struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
struct mdchain *mdp;
u_int8_t wc;
int error;
u_int16_t wattr;
u_int32_t lint;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_QUERY_INFORMATION, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
do {
error = smbfs_fullpath(mbp, SSTOVC(ssp), np, name, len);
if (error)
break;
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
if (error)
break;
smb_rq_getreply(rqp, &mdp);
if (md_get_uint8(mdp, &wc) != 0 || wc != 10) {
error = EBADRPC;
break;
}
md_get_uint16le(mdp, &wattr);
fap->fa_attr = wattr;
/*
* Be careful using the time returned here, as
* with FAT on NT4SP6, at least, the time returned is low
* 32 bits of 100s of nanoseconds (since 1601) so it rolls
* over about every seven minutes!
*/
md_get_uint32le(mdp, &lint); /* specs: secs since 1970 */
if (lint) /* avoid bogus zero returns */
smb_time_server2local(lint, SSTOVC(ssp)->vc_sopt.sv_tz,
&fap->fa_mtime);
md_get_uint32le(mdp, &lint);
fap->fa_size = lint;
} while(0);
smb_rq_done(rqp);
return error;
}
/*
* Set DOS file attributes. mtime should be NULL for dialects above lm10
*/
int
smbfs_smb_setpattr(struct smbnode *np, u_int16_t attr, struct timespec *mtime,
struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
u_long time;
int error, svtz;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_SET_INFORMATION, scred);
if (error)
return error;
svtz = SSTOVC(ssp)->vc_sopt.sv_tz;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, attr);
if (mtime) {
smb_time_local2server(mtime, svtz, &time);
} else
time = 0;
mb_put_uint32le(mbp, time); /* mtime */
mb_put_mem(mbp, NULL, 5 * 2, MB_MZERO);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
do {
error = smbfs_fullpath(mbp, SSTOVC(ssp), np, NULL, 0);
if (error)
break;
mb_put_uint8(mbp, SMB_DT_ASCII);
mb_put_uint8(mbp, 0);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
SMBERROR("%d\n", error);
if (error)
break;
} while(0);
smb_rq_done(rqp);
return error;
}
/*
* Note, win95 doesn't support this call.
*/
int
smbfs_smb_setptime2(struct smbnode *np, struct timespec *mtime,
struct timespec *atime, int attr, struct smb_cred *scred)
{
struct smb_t2rq *t2p;
struct smb_share *ssp = np->n_mount->sm_share;
struct smb_vc *vcp = SSTOVC(ssp);
struct mbchain *mbp;
u_int16_t date, time;
int error, tzoff;
error = smb_t2_alloc(SSTOCP(ssp), SMB_TRANS2_SET_PATH_INFORMATION,
scred, &t2p);
if (error)
return error;
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_uint16le(mbp, SMB_INFO_STANDARD);
mb_put_uint32le(mbp, 0); /* MBZ */
/* mb_put_uint8(mbp, SMB_DT_ASCII); specs incorrect */
error = smbfs_fullpath(mbp, vcp, np, NULL, 0);
if (error) {
smb_t2_done(t2p);
return error;
}
tzoff = vcp->vc_sopt.sv_tz;
mbp = &t2p->t2_tdata;
mb_init(mbp);
mb_put_uint32le(mbp, 0); /* creation time */
if (atime)
smb_time_unix2dos(atime, tzoff, &date, &time, NULL);
else
time = date = 0;
mb_put_uint16le(mbp, date);
mb_put_uint16le(mbp, time);
if (mtime)
smb_time_unix2dos(mtime, tzoff, &date, &time, NULL);
else
time = date = 0;
mb_put_uint16le(mbp, date);
mb_put_uint16le(mbp, time);
mb_put_uint32le(mbp, 0); /* file size */
mb_put_uint32le(mbp, 0); /* allocation unit size */
mb_put_uint16le(mbp, attr); /* DOS attr */
mb_put_uint32le(mbp, 0); /* EA size */
t2p->t2_maxpcount = 5 * 2;
t2p->t2_maxdcount = vcp->vc_txmax;
error = smb_t2_request(t2p);
smb_t2_done(t2p);
return error;
}
/*
* NT level. Specially for win9x
*/
int
smbfs_smb_setpattrNT(struct smbnode *np, u_short attr, struct timespec *mtime,
struct timespec *atime, struct smb_cred *scred)
{
struct smb_t2rq *t2p;
struct smb_share *ssp = np->n_mount->sm_share;
struct smb_vc *vcp = SSTOVC(ssp);
struct mbchain *mbp;
int64_t tm;
int error, tzoff;
error = smb_t2_alloc(SSTOCP(ssp), SMB_TRANS2_SET_PATH_INFORMATION,
scred, &t2p);
if (error)
return error;
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_uint16le(mbp, SMB_SET_FILE_BASIC_INFO);
mb_put_uint32le(mbp, 0); /* MBZ */
/* mb_put_uint8(mbp, SMB_DT_ASCII); specs incorrect */
error = smbfs_fullpath(mbp, vcp, np, NULL, 0);
if (error) {
smb_t2_done(t2p);
return error;
}
tzoff = vcp->vc_sopt.sv_tz;
mbp = &t2p->t2_tdata;
mb_init(mbp);
mb_put_int64le(mbp, 0); /* creation time */
if (atime) {
smb_time_local2NT(atime, tzoff, &tm);
} else
tm = 0;
mb_put_int64le(mbp, tm);
if (mtime) {
smb_time_local2NT(mtime, tzoff, &tm);
} else
tm = 0;
mb_put_int64le(mbp, tm);
mb_put_int64le(mbp, tm); /* change time */
mb_put_uint32le(mbp, attr); /* attr */
t2p->t2_maxpcount = 24;
t2p->t2_maxdcount = 56;
error = smb_t2_request(t2p);
smb_t2_done(t2p);
return error;
}
/*
* Set file atime and mtime. Doesn't supported by core dialect.
*/
int
smbfs_smb_setftime(struct smbnode *np, struct timespec *mtime,
struct timespec *atime, struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
u_int16_t date, time;
int error, tzoff;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_SET_INFORMATION2, scred);
if (error)
return error;
tzoff = SSTOVC(ssp)->vc_sopt.sv_tz;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_mem(mbp, (caddr_t)&np->n_fid, 2, MB_MSYSTEM);
mb_put_uint32le(mbp, 0); /* creation time */
if (atime)
smb_time_unix2dos(atime, tzoff, &date, &time, NULL);
else
time = date = 0;
mb_put_uint16le(mbp, date);
mb_put_uint16le(mbp, time);
if (mtime)
smb_time_unix2dos(mtime, tzoff, &date, &time, NULL);
else
time = date = 0;
mb_put_uint16le(mbp, date);
mb_put_uint16le(mbp, time);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
SMBSDEBUG("%d\n", error);
smb_rq_done(rqp);
return error;
}
/*
* Set DOS file attributes.
* Looks like this call can be used only if CAP_NT_SMBS bit is on.
*/
int
smbfs_smb_setfattrNT(struct smbnode *np, u_int16_t attr, struct timespec *mtime,
struct timespec *atime, struct smb_cred *scred)
{
struct smb_t2rq *t2p;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
int64_t tm;
int error, svtz;
error = smb_t2_alloc(SSTOCP(ssp), SMB_TRANS2_SET_FILE_INFORMATION,
scred, &t2p);
if (error)
return error;
svtz = SSTOVC(ssp)->vc_sopt.sv_tz;
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_mem(mbp, (caddr_t)&np->n_fid, 2, MB_MSYSTEM);
mb_put_uint16le(mbp, SMB_SET_FILE_BASIC_INFO);
mb_put_uint32le(mbp, 0);
mbp = &t2p->t2_tdata;
mb_init(mbp);
mb_put_int64le(mbp, 0); /* creation time */
if (atime) {
smb_time_local2NT(atime, svtz, &tm);
} else
tm = 0;
mb_put_int64le(mbp, tm);
if (mtime) {
smb_time_local2NT(mtime, svtz, &tm);
} else
tm = 0;
mb_put_int64le(mbp, tm);
mb_put_int64le(mbp, tm); /* change time */
mb_put_uint16le(mbp, attr);
mb_put_uint32le(mbp, 0); /* padding */
mb_put_uint16le(mbp, 0);
t2p->t2_maxpcount = 2;
t2p->t2_maxdcount = 0;
error = smb_t2_request(t2p);
smb_t2_done(t2p);
return error;
}
int
smbfs_smb_open(struct smbnode *np, int accmode, struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
struct mdchain *mdp;
u_int8_t wc;
u_int16_t fid, wattr, grantedmode;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_OPEN, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, accmode);
mb_put_uint16le(mbp, SMB_FA_SYSTEM | SMB_FA_HIDDEN);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
do {
error = smbfs_fullpath(mbp, SSTOVC(ssp), np, NULL, 0);
if (error)
break;
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
if (error)
break;
smb_rq_getreply(rqp, &mdp);
if (md_get_uint8(mdp, &wc) != 0 || wc != 7) {
error = EBADRPC;
break;
}
md_get_uint16(mdp, &fid);
md_get_uint16le(mdp, &wattr);
md_get_uint32(mdp, NULL); /* mtime */
md_get_uint32(mdp, NULL); /* fsize */
md_get_uint16le(mdp, &grantedmode);
/*
* TODO: refresh attributes from this reply
*/
} while(0);
smb_rq_done(rqp);
if (error)
return error;
np->n_fid = fid;
np->n_rwstate = grantedmode;
return 0;
}
int
smbfs_smb_close(struct smb_share *ssp, u_int16_t fid, struct timespec *mtime,
struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct mbchain *mbp;
u_long time;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_CLOSE, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
if (mtime) {
smb_time_local2server(mtime, SSTOVC(ssp)->vc_sopt.sv_tz, &time);
} else
time = 0;
mb_put_uint32le(mbp, time);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
smb_rq_done(rqp);
return error;
}
int
smbfs_smb_create(struct smbnode *dnp, const char *name, int nmlen,
struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = dnp->n_mount->sm_share;
struct mbchain *mbp;
struct mdchain *mdp;
struct timespec ctime;
u_int8_t wc;
u_int16_t fid;
u_long tm;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_CREATE, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, SMB_FA_ARCHIVE); /* attributes */
nanotime(&ctime);
smb_time_local2server(&ctime, SSTOVC(ssp)->vc_sopt.sv_tz, &tm);
mb_put_uint32le(mbp, tm);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
error = smbfs_fullpath(mbp, SSTOVC(ssp), dnp, name, nmlen);
if (!error) {
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
if (!error) {
smb_rq_getreply(rqp, &mdp);
md_get_uint8(mdp, &wc);
if (wc == 1)
md_get_uint16(mdp, &fid);
else
error = EBADRPC;
}
}
smb_rq_done(rqp);
if (error)
return error;
smbfs_smb_close(ssp, fid, &ctime, scred);
return error;
}
int
smbfs_smb_delete(struct smbnode *np, struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_DELETE, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, SMB_FA_SYSTEM | SMB_FA_HIDDEN);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
error = smbfs_fullpath(mbp, SSTOVC(ssp), np, NULL, 0);
if (!error) {
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
}
smb_rq_done(rqp);
return error;
}
int
smbfs_smb_rename(struct smbnode *src, struct smbnode *tdnp,
const char *tname, int tnmlen, struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = src->n_mount->sm_share;
struct mbchain *mbp;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_RENAME, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, SMB_FA_SYSTEM | SMB_FA_HIDDEN);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
do {
error = smbfs_fullpath(mbp, SSTOVC(ssp), src, NULL, 0);
if (error)
break;
mb_put_uint8(mbp, SMB_DT_ASCII);
error = smbfs_fullpath(mbp, SSTOVC(ssp), tdnp, tname, tnmlen);
if (error)
break;
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
} while(0);
smb_rq_done(rqp);
return error;
}
int
smbfs_smb_move(struct smbnode *src, struct smbnode *tdnp,
const char *tname, int tnmlen, u_int16_t flags, struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = src->n_mount->sm_share;
struct mbchain *mbp;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_MOVE, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, SMB_TID_UNKNOWN);
mb_put_uint16le(mbp, 0x20); /* delete target file */
mb_put_uint16le(mbp, flags);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
do {
error = smbfs_fullpath(mbp, SSTOVC(ssp), src, NULL, 0);
if (error)
break;
mb_put_uint8(mbp, SMB_DT_ASCII);
error = smbfs_fullpath(mbp, SSTOVC(ssp), tdnp, tname, tnmlen);
if (error)
break;
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
} while(0);
smb_rq_done(rqp);
return error;
}
int
smbfs_smb_mkdir(struct smbnode *dnp, const char *name, int len,
struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = dnp->n_mount->sm_share;
struct mbchain *mbp;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_CREATE_DIRECTORY, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
error = smbfs_fullpath(mbp, SSTOVC(ssp), dnp, name, len);
if (!error) {
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
}
smb_rq_done(rqp);
return error;
}
int
smbfs_smb_rmdir(struct smbnode *np, struct smb_cred *scred)
{
struct smb_rq rq, *rqp = &rq;
struct smb_share *ssp = np->n_mount->sm_share;
struct mbchain *mbp;
int error;
error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_DELETE_DIRECTORY, scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII);
error = smbfs_fullpath(mbp, SSTOVC(ssp), np, NULL, 0);
if (!error) {
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
}
smb_rq_done(rqp);
return error;
}
static int
smbfs_smb_search(struct smbfs_fctx *ctx)
{
struct smb_vc *vcp = SSTOVC(ctx->f_ssp);
struct smb_rq *rqp;
struct mbchain *mbp;
struct mdchain *mdp;
u_int8_t wc, bt;
u_int16_t ec, dlen, bc;
int maxent, error, iseof = 0;
maxent = min(ctx->f_left, (vcp->vc_txmax - SMB_HDRLEN - 3) / SMB_DENTRYLEN);
if (ctx->f_rq) {
smb_rq_done(ctx->f_rq);
ctx->f_rq = NULL;
}
error = smb_rq_alloc(SSTOCP(ctx->f_ssp), SMB_COM_SEARCH, ctx->f_scred, &rqp);
if (error)
return error;
ctx->f_rq = rqp;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, maxent); /* max entries to return */
mb_put_uint16le(mbp, ctx->f_attrmask);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_ASCII); /* buffer format */
if (ctx->f_flags & SMBFS_RDD_FINDFIRST) {
error = smbfs_fullpath(mbp, vcp, ctx->f_dnp, ctx->f_wildcard, ctx->f_wclen);
if (error)
return error;
mb_put_uint8(mbp, SMB_DT_VARIABLE);
mb_put_uint16le(mbp, 0); /* context length */
ctx->f_flags &= ~SMBFS_RDD_FINDFIRST;
} else {
mb_put_uint8(mbp, 0); /* file name length */
mb_put_uint8(mbp, SMB_DT_VARIABLE);
mb_put_uint16le(mbp, SMB_SKEYLEN);
mb_put_mem(mbp, ctx->f_skey, SMB_SKEYLEN, MB_MSYSTEM);
}
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
if (error) {
if (rqp->sr_errclass == ERRDOS && rqp->sr_serror == ERRnofiles) {
error = 0;
iseof = 1;
ctx->f_flags |= SMBFS_RDD_EOF;
} else
return error;
}
smb_rq_getreply(rqp, &mdp);
md_get_uint8(mdp, &wc);
if (wc != 1)
return iseof ? ENOENT : EBADRPC;
md_get_uint16le(mdp, &ec);
if (ec == 0)
return ENOENT;
ctx->f_ecnt = ec;
md_get_uint16le(mdp, &bc);
if (bc < 3)
return EBADRPC;
bc -= 3;
md_get_uint8(mdp, &bt);
if (bt != SMB_DT_VARIABLE)
return EBADRPC;
md_get_uint16le(mdp, &dlen);
if (dlen != bc || dlen % SMB_DENTRYLEN != 0)
return EBADRPC;
return 0;
}
static int
smbfs_findopenLM1(struct smbfs_fctx *ctx, struct smbnode *dnp,
const char *wildcard, int wclen, int attr, struct smb_cred *scred)
{
ctx->f_attrmask = attr;
if (wildcard) {
if (wclen == 1 && wildcard[0] == '*') {
ctx->f_wildcard = "*.*";
ctx->f_wclen = 3;
} else {
ctx->f_wildcard = wildcard;
ctx->f_wclen = wclen;
}
} else {
ctx->f_wildcard = NULL;
ctx->f_wclen = 0;
}
ctx->f_name = ctx->f_fname;
return 0;
}
static int
smbfs_findnextLM1(struct smbfs_fctx *ctx, int limit)
{
struct mdchain *mbp;
struct smb_rq *rqp;
char *cp;
u_int8_t battr;
u_int16_t date, time;
u_int32_t size;
int error;
if (ctx->f_ecnt == 0) {
if (ctx->f_flags & SMBFS_RDD_EOF)
return ENOENT;
ctx->f_left = ctx->f_limit = limit;
error = smbfs_smb_search(ctx);
if (error)
return error;
}
rqp = ctx->f_rq;
smb_rq_getreply(rqp, &mbp);
md_get_mem(mbp, ctx->f_skey, SMB_SKEYLEN, MB_MSYSTEM);
md_get_uint8(mbp, &battr);
md_get_uint16le(mbp, &time);
md_get_uint16le(mbp, &date);
md_get_uint32le(mbp, &size);
cp = ctx->f_name;
md_get_mem(mbp, cp, sizeof(ctx->f_fname), MB_MSYSTEM);
cp[sizeof(ctx->f_fname) - 1] = 0;
cp += strlen(cp) - 1;
while (*cp == ' ' && cp >= ctx->f_name)
*cp-- = 0;
ctx->f_attr.fa_attr = battr;
smb_dos2unixtime(date, time, 0, rqp->sr_vc->vc_sopt.sv_tz,
&ctx->f_attr.fa_mtime);
ctx->f_attr.fa_size = size;
ctx->f_nmlen = strlen(ctx->f_name);
ctx->f_ecnt--;
ctx->f_left--;
return 0;
}
static int
smbfs_findcloseLM1(struct smbfs_fctx *ctx)
{
if (ctx->f_rq)
smb_rq_done(ctx->f_rq);
return 0;
}
/*
* TRANS2_FIND_FIRST2/NEXT2, used for NT LM12 dialect
*/
static int
smbfs_smb_trans2find2(struct smbfs_fctx *ctx)
{
struct smb_t2rq *t2p;
struct smb_vc *vcp = SSTOVC(ctx->f_ssp);
struct mbchain *mbp;
struct mdchain *mdp;
u_int16_t tw, flags;
int error;
if (ctx->f_t2) {
smb_t2_done(ctx->f_t2);
ctx->f_t2 = NULL;
}
ctx->f_flags &= ~SMBFS_RDD_GOTRNAME;
flags = 8 | 2; /* <resume> | <close if EOS> */
if (ctx->f_flags & SMBFS_RDD_FINDSINGLE) {
flags |= 1; /* close search after this request */
ctx->f_flags |= SMBFS_RDD_NOCLOSE;
}
if (ctx->f_flags & SMBFS_RDD_FINDFIRST) {
error = smb_t2_alloc(SSTOCP(ctx->f_ssp), SMB_TRANS2_FIND_FIRST2,
ctx->f_scred, &t2p);
if (error)
return error;
ctx->f_t2 = t2p;
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_uint16le(mbp, ctx->f_attrmask);
mb_put_uint16le(mbp, ctx->f_limit);
mb_put_uint16le(mbp, flags);
mb_put_uint16le(mbp, ctx->f_infolevel);
mb_put_uint32le(mbp, 0);
error = smbfs_fullpath(mbp, vcp, ctx->f_dnp, ctx->f_wildcard, ctx->f_wclen);
if (error)
return error;
} else {
error = smb_t2_alloc(SSTOCP(ctx->f_ssp), SMB_TRANS2_FIND_NEXT2,
ctx->f_scred, &t2p);
if (error)
return error;
ctx->f_t2 = t2p;
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_mem(mbp, (caddr_t)&ctx->f_Sid, 2, MB_MSYSTEM);
mb_put_uint16le(mbp, ctx->f_limit);
mb_put_uint16le(mbp, ctx->f_infolevel);
mb_put_uint32le(mbp, 0); /* resume key */
mb_put_uint16le(mbp, flags);
if (ctx->f_rname)
mb_put_mem(mbp, ctx->f_rname, strlen(ctx->f_rname) + 1, MB_MSYSTEM);
else
mb_put_uint8(mbp, 0); /* resume file name */
#if 0
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 200 * 1000; /* 200ms */
if (vcp->vc_flags & SMBC_WIN95) {
/*
* some implementations suggests to sleep here
* for 200ms, due to the bug in the Win95.
* I've didn't notice any problem, but put code
* for it.
*/
tsleep(&flags, PVFS, "fix95", tvtohz(&tv));
}
#endif
}
t2p->t2_maxpcount = 5 * 2;
t2p->t2_maxdcount = vcp->vc_txmax;
error = smb_t2_request(t2p);
if (error)
return error;
mdp = &t2p->t2_rparam;
if (ctx->f_flags & SMBFS_RDD_FINDFIRST) {
if ((error = md_get_uint16(mdp, &ctx->f_Sid)) != 0)
return error;
ctx->f_flags &= ~SMBFS_RDD_FINDFIRST;
}
if ((error = md_get_uint16le(mdp, &tw)) != 0)
return error;
ctx->f_ecnt = tw;
if ((error = md_get_uint16le(mdp, &tw)) != 0)
return error;
if (tw)
ctx->f_flags |= SMBFS_RDD_EOF | SMBFS_RDD_NOCLOSE;
if ((error = md_get_uint16le(mdp, &tw)) != 0)
return error;
if ((error = md_get_uint16le(mdp, &tw)) != 0)
return error;
if (ctx->f_ecnt == 0)
return ENOENT;
ctx->f_rnameofs = tw;
mdp = &t2p->t2_rdata;
if (mdp->md_top == NULL) {
printf("bug: ecnt = %d, but data is NULL (please report)\n", ctx->f_ecnt);
return ENOENT;
}
if (mdp->md_top->m_len == 0) {
printf("bug: ecnt = %d, but m_len = 0 and m_next = %p (please report)\n", ctx->f_ecnt,mbp->mb_top->m_next);
return ENOENT;
}
ctx->f_eofs = 0;
return 0;
}
static int
smbfs_smb_findclose2(struct smbfs_fctx *ctx)
{
struct smb_rq rq, *rqp = &rq;
struct mbchain *mbp;
int error;
error = smb_rq_init(rqp, SSTOCP(ctx->f_ssp), SMB_COM_FIND_CLOSE2, ctx->f_scred);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_mem(mbp, (caddr_t)&ctx->f_Sid, 2, MB_MSYSTEM);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
smb_rq_done(rqp);
return error;
}
static int
smbfs_findopenLM2(struct smbfs_fctx *ctx, struct smbnode *dnp,
const char *wildcard, int wclen, int attr, struct smb_cred *scred)
{
ctx->f_name = malloc(SMB_MAXFNAMELEN, M_SMBFSDATA, M_WAITOK);
if (ctx->f_name == NULL)
return ENOMEM;
ctx->f_infolevel = SMB_DIALECT(SSTOVC(ctx->f_ssp)) < SMB_DIALECT_NTLM0_12 ?
SMB_INFO_STANDARD : SMB_FIND_FILE_DIRECTORY_INFO;
ctx->f_attrmask = attr;
ctx->f_wildcard = wildcard;
ctx->f_wclen = wclen;
return 0;
}
static int
smbfs_findnextLM2(struct smbfs_fctx *ctx, int limit)
{
struct mdchain *mbp;
struct smb_t2rq *t2p;
char *cp;
u_int8_t tb;
u_int16_t date, time, wattr;
u_int32_t size, next, dattr;
int64_t lint;
int error, svtz, cnt, fxsz, nmlen, recsz;
if (ctx->f_ecnt == 0) {
if (ctx->f_flags & SMBFS_RDD_EOF)
return ENOENT;
ctx->f_left = ctx->f_limit = limit;
error = smbfs_smb_trans2find2(ctx);
if (error)
return error;
}
t2p = ctx->f_t2;
mbp = &t2p->t2_rdata;
svtz = SSTOVC(ctx->f_ssp)->vc_sopt.sv_tz;
switch (ctx->f_infolevel) {
case SMB_INFO_STANDARD:
next = 0;
fxsz = 0;
md_get_uint16le(mbp, &date);
md_get_uint16le(mbp, &time); /* creation time */
md_get_uint16le(mbp, &date);
md_get_uint16le(mbp, &time); /* access time */
smb_dos2unixtime(date, time, 0, svtz, &ctx->f_attr.fa_atime);
md_get_uint16le(mbp, &date);
md_get_uint16le(mbp, &time); /* access time */
smb_dos2unixtime(date, time, 0, svtz, &ctx->f_attr.fa_mtime);
md_get_uint32le(mbp, &size);
ctx->f_attr.fa_size = size;
md_get_uint32(mbp, NULL); /* allocation size */
md_get_uint16le(mbp, &wattr);
ctx->f_attr.fa_attr = wattr;
md_get_uint8(mbp, &tb);
size = nmlen = tb;
fxsz = 23;
recsz = next = 24 + nmlen; /* docs misses zero byte at end */
break;
case SMB_FIND_FILE_DIRECTORY_INFO:
md_get_uint32le(mbp, &next);
md_get_uint32(mbp, NULL); /* file index */
md_get_int64(mbp, NULL); /* creation time */
md_get_int64le(mbp, &lint);
smb_time_NT2local(lint, svtz, &ctx->f_attr.fa_atime);
md_get_int64le(mbp, &lint);
smb_time_NT2local(lint, svtz, &ctx->f_attr.fa_mtime);
md_get_int64le(mbp, &lint);
smb_time_NT2local(lint, svtz, &ctx->f_attr.fa_ctime);
md_get_int64le(mbp, &lint); /* file size */
ctx->f_attr.fa_size = lint;
md_get_int64(mbp, NULL); /* real size (should use) */
md_get_uint32le(mbp, &dattr); /* EA */
ctx->f_attr.fa_attr = dattr;
md_get_uint32le(mbp, &size); /* name len */
fxsz = 64;
recsz = next ? next : fxsz + size;
break;
default:
SMBERROR("unexpected info level %d\n", ctx->f_infolevel);
return EINVAL;
}
nmlen = min(size, SMB_MAXFNAMELEN);
cp = ctx->f_name;
error = md_get_mem(mbp, cp, nmlen, MB_MSYSTEM);
if (error)
return error;
if (next) {
cnt = next - nmlen - fxsz;
if (cnt > 0)
md_get_mem(mbp, NULL, cnt, MB_MSYSTEM);
else if (cnt < 0) {
SMBERROR("out of sync\n");
return EBADRPC;
}
}
if (nmlen && cp[nmlen - 1] == 0)
nmlen--;
if (nmlen == 0)
return EBADRPC;
next = ctx->f_eofs + recsz;
if (ctx->f_rnameofs && (ctx->f_flags & SMBFS_RDD_GOTRNAME) == 0 &&
(ctx->f_rnameofs >= ctx->f_eofs && ctx->f_rnameofs < next)) {
/*
* Server needs a resume filename.
*/
if (ctx->f_rnamelen <= nmlen) {
if (ctx->f_rname)
free(ctx->f_rname, M_SMBFSDATA);
ctx->f_rname = malloc(nmlen + 1, M_SMBFSDATA, M_WAITOK);
ctx->f_rnamelen = nmlen;
}
bcopy(ctx->f_name, ctx->f_rname, nmlen);
ctx->f_rname[nmlen] = 0;
ctx->f_flags |= SMBFS_RDD_GOTRNAME;
}
ctx->f_nmlen = nmlen;
ctx->f_eofs = next;
ctx->f_ecnt--;
ctx->f_left--;
return 0;
}
static int
smbfs_findcloseLM2(struct smbfs_fctx *ctx)
{
if (ctx->f_name)
free(ctx->f_name, M_SMBFSDATA);
if (ctx->f_t2)
smb_t2_done(ctx->f_t2);
if ((ctx->f_flags & SMBFS_RDD_NOCLOSE) == 0)
smbfs_smb_findclose2(ctx);
return 0;
}
int
smbfs_findopen(struct smbnode *dnp, const char *wildcard, int wclen, int attr,
struct smb_cred *scred, struct smbfs_fctx **ctxpp)
{
struct smbfs_fctx *ctx;
int error;
ctx = malloc(sizeof(*ctx), M_SMBFSDATA, M_WAITOK);
if (ctx == NULL)
return ENOMEM;
bzero(ctx, sizeof(*ctx));
ctx->f_ssp = dnp->n_mount->sm_share;
ctx->f_dnp = dnp;
ctx->f_flags = SMBFS_RDD_FINDFIRST;
ctx->f_scred = scred;
if (SMB_DIALECT(SSTOVC(ctx->f_ssp)) < SMB_DIALECT_LANMAN2_0 ||
(dnp->n_mount->sm_args.flags & SMBFS_MOUNT_NO_LONG)) {
ctx->f_flags |= SMBFS_RDD_USESEARCH;
error = smbfs_findopenLM1(ctx, dnp, wildcard, wclen, attr, scred);
} else
error = smbfs_findopenLM2(ctx, dnp, wildcard, wclen, attr, scred);
if (error)
smbfs_findclose(ctx, scred);
else
*ctxpp = ctx;
return error;
}
int
smbfs_findnext(struct smbfs_fctx *ctx, int limit, struct smb_cred *scred)
{
int error;
if (limit == 0)
limit = 1000000;
else if (limit > 1)
limit *= 4; /* imperical */
ctx->f_scred = scred;
for (;;) {
if (ctx->f_flags & SMBFS_RDD_USESEARCH) {
error = smbfs_findnextLM1(ctx, limit);
} else
error = smbfs_findnextLM2(ctx, limit);
if (error)
return error;
if ((ctx->f_nmlen == 1 && ctx->f_name[0] == '.') ||
(ctx->f_nmlen == 2 && ctx->f_name[0] == '.' &&
ctx->f_name[1] == '.'))
continue;
break;
}
smbfs_fname_tolocal(SSTOVC(ctx->f_ssp), ctx->f_name, ctx->f_nmlen,
ctx->f_dnp->n_mount->sm_caseopt);
ctx->f_attr.fa_ino = smbfs_getino(ctx->f_dnp, ctx->f_name, ctx->f_nmlen);
return 0;
}
int
smbfs_findclose(struct smbfs_fctx *ctx, struct smb_cred *scred)
{
ctx->f_scred = scred;
if (ctx->f_flags & SMBFS_RDD_USESEARCH) {
smbfs_findcloseLM1(ctx);
} else
smbfs_findcloseLM2(ctx);
if (ctx->f_rname)
free(ctx->f_rname, M_SMBFSDATA);
free(ctx, M_SMBFSDATA);
return 0;
}
int
smbfs_smb_lookup(struct smbnode *dnp, const char *name, int nmlen,
struct smbfattr *fap, struct smb_cred *scred)
{
struct smbfs_fctx *ctx;
int error;
if (dnp == NULL || (dnp->n_ino == 2 && name == NULL)) {
bzero(fap, sizeof(*fap));
fap->fa_attr = SMB_FA_DIR;
fap->fa_ino = 2;
return 0;
}
if (nmlen == 1 && name[0] == '.') {
error = smbfs_smb_lookup(dnp, NULL, 0, fap, scred);
return error;
} else if (nmlen == 2 && name[0] == '.' && name[1] == '.') {
error = smbfs_smb_lookup(VTOSMB(dnp->n_parent), NULL, 0, fap,
scred);
printf("%s: knows NOTHING about '..'\n", __func__);
return error;
}
error = smbfs_findopen(dnp, name, nmlen,
SMB_FA_SYSTEM | SMB_FA_HIDDEN | SMB_FA_DIR, scred, &ctx);
if (error)
return error;
ctx->f_flags |= SMBFS_RDD_FINDSINGLE;
error = smbfs_findnext(ctx, 1, scred);
if (error == 0) {
*fap = ctx->f_attr;
if (name == NULL)
fap->fa_ino = dnp->n_ino;
}
smbfs_findclose(ctx, scred);
return error;
}
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