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|
/*
Unix SMB/Netbios implementation.
Version 1.9.
SMB transaction2 handling
Copyright (C) Jeremy Allison 1994-1998
Extensively modified by Andrew Tridgell, 1995
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "trans2.h"
extern int DEBUGLEVEL;
extern int Protocol;
extern connection_struct Connections[];
extern files_struct Files[];
extern BOOL case_sensitive;
extern int Client;
extern int oplock_sock;
extern int smb_read_error;
extern fstring local_machine;
extern int global_oplock_break;
/****************************************************************************
Send the required number of replies back.
We assume all fields other than the data fields are
set correctly for the type of call.
HACK ! Always assumes smb_setup field is zero.
****************************************************************************/
static int send_trans2_replies(char *outbuf, int bufsize, char *params,
int paramsize, char *pdata, int datasize)
{
/* As we are using a protocol > LANMAN1 then the max_send
variable must have been set in the sessetupX call.
This takes precedence over the max_xmit field in the
global struct. These different max_xmit variables should
be merged as this is now too confusing */
extern int max_send;
int data_to_send = datasize;
int params_to_send = paramsize;
int useable_space;
char *pp = params;
char *pd = pdata;
int params_sent_thistime, data_sent_thistime, total_sent_thistime;
int alignment_offset = 3;
int data_alignment_offset = 0;
/* Initially set the wcnt area to be 10 - this is true for all
trans2 replies */
set_message(outbuf,10,0,True);
/* If there genuinely are no parameters or data to send just send
the empty packet */
if(params_to_send == 0 && data_to_send == 0)
{
send_smb(Client,outbuf);
return 0;
}
/* When sending params and data ensure that both are nicely aligned */
/* Only do this alignment when there is also data to send - else
can cause NT redirector problems. */
if (((params_to_send % 4) != 0) && (data_to_send != 0))
data_alignment_offset = 4 - (params_to_send % 4);
/* Space is bufsize minus Netbios over TCP header minus SMB header */
/* The alignment_offset is to align the param bytes on an even byte
boundary. NT 4.0 Beta needs this to work correctly. */
useable_space = bufsize - ((smb_buf(outbuf)+
alignment_offset+data_alignment_offset) -
outbuf);
/* useable_space can never be more than max_send minus the
alignment offset. */
useable_space = MIN(useable_space,
max_send - (alignment_offset+data_alignment_offset));
while (params_to_send || data_to_send)
{
/* Calculate whether we will totally or partially fill this packet */
total_sent_thistime = params_to_send + data_to_send +
alignment_offset + data_alignment_offset;
/* We can never send more than useable_space */
total_sent_thistime = MIN(total_sent_thistime, useable_space);
set_message(outbuf, 10, total_sent_thistime, True);
/* Set total params and data to be sent */
SSVAL(outbuf,smb_tprcnt,paramsize);
SSVAL(outbuf,smb_tdrcnt,datasize);
/* Calculate how many parameters and data we can fit into
this packet. Parameters get precedence */
params_sent_thistime = MIN(params_to_send,useable_space);
data_sent_thistime = useable_space - params_sent_thistime;
data_sent_thistime = MIN(data_sent_thistime,data_to_send);
SSVAL(outbuf,smb_prcnt, params_sent_thistime);
if(params_sent_thistime == 0)
{
SSVAL(outbuf,smb_proff,0);
SSVAL(outbuf,smb_prdisp,0);
} else {
/* smb_proff is the offset from the start of the SMB header to the
parameter bytes, however the first 4 bytes of outbuf are
the Netbios over TCP header. Thus use smb_base() to subtract
them from the calculation */
SSVAL(outbuf,smb_proff,((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf)));
/* Absolute displacement of param bytes sent in this packet */
SSVAL(outbuf,smb_prdisp,pp - params);
}
SSVAL(outbuf,smb_drcnt, data_sent_thistime);
if(data_sent_thistime == 0)
{
SSVAL(outbuf,smb_droff,0);
SSVAL(outbuf,smb_drdisp, 0);
} else {
/* The offset of the data bytes is the offset of the
parameter bytes plus the number of parameters being sent this time */
SSVAL(outbuf,smb_droff,((smb_buf(outbuf)+alignment_offset) -
smb_base(outbuf)) +
params_sent_thistime + data_alignment_offset);
SSVAL(outbuf,smb_drdisp, pd - pdata);
}
/* Copy the param bytes into the packet */
if(params_sent_thistime)
memcpy((smb_buf(outbuf)+alignment_offset),pp,params_sent_thistime);
/* Copy in the data bytes */
if(data_sent_thistime)
memcpy(smb_buf(outbuf)+alignment_offset+params_sent_thistime+data_alignment_offset,pd,data_sent_thistime);
DEBUG(9,("t2_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
params_sent_thistime, data_sent_thistime, useable_space));
DEBUG(9,("t2_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
params_to_send, data_to_send, paramsize, datasize));
/* Send the packet */
send_smb(Client,outbuf);
pp += params_sent_thistime;
pd += data_sent_thistime;
params_to_send -= params_sent_thistime;
data_to_send -= data_sent_thistime;
/* Sanity check */
if(params_to_send < 0 || data_to_send < 0)
{
DEBUG(2,("send_trans2_replies failed sanity check pts = %d, dts = %d\n!!!",
params_to_send, data_to_send));
return -1;
}
}
return 0;
}
/****************************************************************************
reply to a TRANSACT2_OPEN
****************************************************************************/
static int call_trans2open(char *inbuf, char *outbuf, int bufsize, int cnum,
char **pparams, char **ppdata)
{
char *params = *pparams;
int16 open_mode = SVAL(params, 2);
int16 open_attr = SVAL(params,6);
BOOL oplock_request = (((SVAL(params,0)|(1<<1))>>1) | ((SVAL(params,0)|(1<<2))>>1));
#if 0
BOOL return_additional_info = BITSETW(params,0);
int16 open_sattr = SVAL(params, 4);
time_t open_time = make_unix_date3(params+8);
#endif
int16 open_ofun = SVAL(params,12);
int32 open_size = IVAL(params,14);
char *pname = ¶ms[28];
int16 namelen = strlen(pname)+1;
pstring fname;
int fnum = -1;
int unixmode;
int size=0,fmode=0,mtime=0,rmode;
int32 inode = 0;
struct stat sbuf;
int smb_action = 0;
BOOL bad_path = False;
StrnCpy(fname,pname,namelen);
DEBUG(3,("trans2open %s cnum=%d mode=%d attr=%d ofun=%d size=%d\n",
fname,cnum,open_mode, open_attr, open_ofun, open_size));
/* XXXX we need to handle passed times, sattr and flags */
unix_convert(fname,cnum,0,&bad_path);
fnum = find_free_file();
if (fnum < 0)
return(ERROR(ERRSRV,ERRnofids));
if (!check_name(fname,cnum))
{
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
Files[fnum].reserved = False;
return(UNIXERROR(ERRDOS,ERRnoaccess));
}
unixmode = unix_mode(cnum,open_attr | aARCH);
open_file_shared(fnum,cnum,fname,open_mode,open_ofun,unixmode,
oplock_request, &rmode,&smb_action);
if (!Files[fnum].open)
{
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
Files[fnum].reserved = False;
return(UNIXERROR(ERRDOS,ERRnoaccess));
}
if (fstat(Files[fnum].fd_ptr->fd,&sbuf) != 0) {
close_file(fnum,False);
return(ERROR(ERRDOS,ERRnoaccess));
}
size = sbuf.st_size;
fmode = dos_mode(cnum,fname,&sbuf);
mtime = sbuf.st_mtime;
inode = sbuf.st_ino;
if (fmode & aDIR) {
close_file(fnum,False);
return(ERROR(ERRDOS,ERRnoaccess));
}
/* Realloc the size of parameters and data we will return */
params = *pparams = Realloc(*pparams, 28);
if(params == NULL)
return(ERROR(ERRDOS,ERRnomem));
bzero(params,28);
SSVAL(params,0,fnum);
SSVAL(params,2,fmode);
put_dos_date2(params,4, mtime);
SIVAL(params,8, size);
SSVAL(params,12,rmode);
if (oplock_request && lp_fake_oplocks(SNUM(cnum))) {
smb_action |= EXTENDED_OPLOCK_GRANTED;
}
SSVAL(params,18,smb_action);
SIVAL(params,20,inode);
/* Send the required number of replies */
send_trans2_replies(outbuf, bufsize, params, 28, *ppdata, 0);
return -1;
}
/****************************************************************************
get a level dependent lanman2 dir entry.
****************************************************************************/
static int get_lanman2_dir_entry(int cnum,char *path_mask,int dirtype,int info_level,
int requires_resume_key,
BOOL dont_descend,char **ppdata,
char *base_data, int space_remaining,
BOOL *out_of_space,
int *last_name_off)
{
char *dname;
BOOL found = False;
struct stat sbuf;
pstring mask;
pstring pathreal;
pstring fname;
BOOL matched;
char *p, *pdata = *ppdata;
uint32 reskey=0;
int prev_dirpos=0;
int mode=0;
uint32 size=0,len;
uint32 mdate=0, adate=0, cdate=0;
char *nameptr;
BOOL isrootdir = (strequal(Connections[cnum].dirpath,"./") ||
strequal(Connections[cnum].dirpath,".") ||
strequal(Connections[cnum].dirpath,"/"));
BOOL was_8_3;
int nt_extmode; /* Used for NT connections instead of mode */
BOOL needslash = ( Connections[cnum].dirpath[strlen(Connections[cnum].dirpath) -1] != '/');
*fname = 0;
*out_of_space = False;
if (!Connections[cnum].dirptr)
return(False);
p = strrchr(path_mask,'/');
if(p != NULL)
{
if(p[1] == '\0')
pstrcpy(mask,"*.*");
else
pstrcpy(mask, p+1);
}
else
pstrcpy(mask, path_mask);
while (!found)
{
/* Needed if we run out of space */
prev_dirpos = TellDir(Connections[cnum].dirptr);
dname = ReadDirName(Connections[cnum].dirptr);
/*
* Due to bugs in NT client redirectors we are not using
* resume keys any more - set them to zero.
* Check out the related comments in findfirst/findnext.
* JRA.
*/
reskey = 0;
DEBUG(8,("get_lanman2_dir_entry:readdir on dirptr 0x%x now at offset %d\n",
Connections[cnum].dirptr,TellDir(Connections[cnum].dirptr)));
if (!dname)
return(False);
matched = False;
pstrcpy(fname,dname);
if(mask_match(fname, mask, case_sensitive, True))
{
BOOL isdots = (strequal(fname,"..") || strequal(fname,"."));
if (dont_descend && !isdots)
continue;
if (isrootdir && isdots)
continue;
pstrcpy(pathreal,Connections[cnum].dirpath);
if(needslash)
pstrcat(pathreal,"/");
pstrcat(pathreal,dname);
if (sys_stat(pathreal,&sbuf) != 0)
{
DEBUG(5,("get_lanman2_dir_entry:Couldn't stat [%s] (%s)\n",pathreal,strerror(errno)));
continue;
}
mode = dos_mode(cnum,pathreal,&sbuf);
if (!dir_check_ftype(cnum,mode,&sbuf,dirtype)) {
DEBUG(5,("[%s] attribs didn't match %x\n",fname,dirtype));
continue;
}
size = sbuf.st_size;
mdate = sbuf.st_mtime;
adate = sbuf.st_atime;
cdate = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(cnum)));
if(mode & aDIR)
size = 0;
DEBUG(5,("get_lanman2_dir_entry found %s fname=%s\n",pathreal,fname));
found = True;
}
}
name_map_mangle(fname,False,SNUM(cnum));
p = pdata;
nameptr = p;
nt_extmode = mode ? mode : NT_FILE_ATTRIBUTE_NORMAL;
switch (info_level)
{
case 1:
if(requires_resume_key) {
SIVAL(p,0,reskey);
p += 4;
}
put_dos_date2(p,l1_fdateCreation,cdate);
put_dos_date2(p,l1_fdateLastAccess,adate);
put_dos_date2(p,l1_fdateLastWrite,mdate);
SIVAL(p,l1_cbFile,size);
SIVAL(p,l1_cbFileAlloc,ROUNDUP(size,1024));
SSVAL(p,l1_attrFile,mode);
SCVAL(p,l1_cchName,strlen(fname));
pstrcpy(p + l1_achName, fname);
nameptr = p + l1_achName;
p += l1_achName + strlen(fname) + 1;
break;
case 2:
/* info_level 2 */
if(requires_resume_key) {
SIVAL(p,0,reskey);
p += 4;
}
put_dos_date2(p,l2_fdateCreation,cdate);
put_dos_date2(p,l2_fdateLastAccess,adate);
put_dos_date2(p,l2_fdateLastWrite,mdate);
SIVAL(p,l2_cbFile,size);
SIVAL(p,l2_cbFileAlloc,ROUNDUP(size,1024));
SSVAL(p,l2_attrFile,mode);
SIVAL(p,l2_cbList,0); /* No extended attributes */
SCVAL(p,l2_cchName,strlen(fname));
pstrcpy(p + l2_achName, fname);
nameptr = p + l2_achName;
p += l2_achName + strlen(fname) + 1;
break;
case 3:
SIVAL(p,0,reskey);
put_dos_date2(p,4,cdate);
put_dos_date2(p,8,adate);
put_dos_date2(p,12,mdate);
SIVAL(p,16,size);
SIVAL(p,20,ROUNDUP(size,1024));
SSVAL(p,24,mode);
SIVAL(p,26,4);
CVAL(p,30) = strlen(fname);
pstrcpy(p+31, fname);
nameptr = p+31;
p += 31 + strlen(fname) + 1;
break;
case 4:
if(requires_resume_key) {
SIVAL(p,0,reskey);
p += 4;
}
SIVAL(p,0,33+strlen(fname)+1);
put_dos_date2(p,4,cdate);
put_dos_date2(p,8,adate);
put_dos_date2(p,12,mdate);
SIVAL(p,16,size);
SIVAL(p,20,ROUNDUP(size,1024));
SSVAL(p,24,mode);
CVAL(p,32) = strlen(fname);
pstrcpy(p + 33, fname);
nameptr = p+33;
p += 33 + strlen(fname) + 1;
break;
case SMB_FIND_FILE_BOTH_DIRECTORY_INFO:
was_8_3 = is_8_3(fname, True);
len = 94+strlen(fname);
len = (len + 3) & ~3;
SIVAL(p,0,len); p += 4;
SIVAL(p,0,reskey); p += 4;
put_long_date(p,cdate); p += 8;
put_long_date(p,adate); p += 8;
put_long_date(p,mdate); p += 8;
put_long_date(p,mdate); p += 8;
SIVAL(p,0,size); p += 8;
SIVAL(p,0,size); p += 8;
SIVAL(p,0,nt_extmode); p += 4;
SIVAL(p,0,strlen(fname)); p += 4;
SIVAL(p,0,0); p += 4;
if (!was_8_3) {
pstrcpy(p+2,fname);
if (!name_map_mangle(p+2,True,SNUM(cnum)))
(p+2)[12] = 0;
} else
*(p+2) = 0;
strupper(p+2);
SSVAL(p,0,strlen(p+2));
p += 2 + 24;
/* nameptr = p; */
pstrcpy(p,fname); p += strlen(p);
p = pdata + len;
break;
case SMB_FIND_FILE_DIRECTORY_INFO:
len = 64+strlen(fname);
len = (len + 3) & ~3;
SIVAL(p,0,len); p += 4;
SIVAL(p,0,reskey); p += 4;
put_long_date(p,cdate); p += 8;
put_long_date(p,adate); p += 8;
put_long_date(p,mdate); p += 8;
put_long_date(p,mdate); p += 8;
SIVAL(p,0,size); p += 8;
SIVAL(p,0,size); p += 8;
SIVAL(p,0,nt_extmode); p += 4;
SIVAL(p,0,strlen(fname)); p += 4;
pstrcpy(p,fname);
p = pdata + len;
break;
case SMB_FIND_FILE_FULL_DIRECTORY_INFO:
len = 68+strlen(fname);
len = (len + 3) & ~3;
SIVAL(p,0,len); p += 4;
SIVAL(p,0,reskey); p += 4;
put_long_date(p,cdate); p += 8;
put_long_date(p,adate); p += 8;
put_long_date(p,mdate); p += 8;
put_long_date(p,mdate); p += 8;
SIVAL(p,0,size); p += 8;
SIVAL(p,0,size); p += 8;
SIVAL(p,0,nt_extmode); p += 4;
SIVAL(p,0,strlen(fname)); p += 4;
SIVAL(p,0,0); p += 4;
pstrcpy(p,fname);
p = pdata + len;
break;
case SMB_FIND_FILE_NAMES_INFO:
len = 12+strlen(fname);
len = (len + 3) & ~3;
SIVAL(p,0,len); p += 4;
SIVAL(p,0,reskey); p += 4;
SIVAL(p,0,strlen(fname)); p += 4;
pstrcpy(p,fname);
p = pdata + len;
break;
default:
return(False);
}
if (PTR_DIFF(p,pdata) > space_remaining) {
/* Move the dirptr back to prev_dirpos */
SeekDir(Connections[cnum].dirptr, prev_dirpos);
*out_of_space = True;
DEBUG(9,("get_lanman2_dir_entry: out of space\n"));
return False; /* Not finished - just out of space */
}
/* Setup the last_filename pointer, as an offset from base_data */
*last_name_off = PTR_DIFF(nameptr,base_data);
/* Advance the data pointer to the next slot */
*ppdata = p;
return(found);
}
/****************************************************************************
reply to a TRANS2_FINDFIRST
****************************************************************************/
static int call_trans2findfirst(char *inbuf, char *outbuf, int bufsize, int cnum,
char **pparams, char **ppdata)
{
/* We must be careful here that we don't return more than the
allowed number of data bytes. If this means returning fewer than
maxentries then so be it. We assume that the redirector has
enough room for the fixed number of parameter bytes it has
requested. */
uint32 max_data_bytes = SVAL(inbuf, smb_mdrcnt);
char *params = *pparams;
char *pdata = *ppdata;
int dirtype = SVAL(params,0);
int maxentries = SVAL(params,2);
BOOL close_after_first = BITSETW(params+4,0);
BOOL close_if_end = BITSETW(params+4,1);
BOOL requires_resume_key = BITSETW(params+4,2);
int info_level = SVAL(params,6);
pstring directory;
pstring mask;
char *p, *wcard;
int last_name_off=0;
int dptr_num = -1;
int numentries = 0;
int i;
BOOL finished = False;
BOOL dont_descend = False;
BOOL out_of_space = False;
int space_remaining;
BOOL bad_path = False;
*directory = *mask = 0;
DEBUG(3,("call_trans2findfirst: dirtype = %d, maxentries = %d, close_after_first=%d, close_if_end = %d requires_resume_key = %d level = %d, max_data_bytes = %d\n",
dirtype, maxentries, close_after_first, close_if_end, requires_resume_key,
info_level, max_data_bytes));
switch (info_level)
{
case 1:
case 2:
case 3:
case 4:
case SMB_FIND_FILE_DIRECTORY_INFO:
case SMB_FIND_FILE_FULL_DIRECTORY_INFO:
case SMB_FIND_FILE_NAMES_INFO:
case SMB_FIND_FILE_BOTH_DIRECTORY_INFO:
break;
default:
return(ERROR(ERRDOS,ERRunknownlevel));
}
pstrcpy(directory, params + 12); /* Complete directory path with
wildcard mask appended */
DEBUG(5,("path=%s\n",directory));
unix_convert(directory,cnum,0,&bad_path);
if(!check_name(directory,cnum)) {
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
#if 0
/* Ugly - NT specific hack - maybe not needed ? (JRA) */
if((errno == ENOTDIR) && (Protocol >= PROTOCOL_NT1) &&
(get_remote_arch() == RA_WINNT))
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbaddirectory;
}
#endif
return(ERROR(ERRDOS,ERRbadpath));
}
p = strrchr(directory,'/');
if(p == NULL) {
pstrcpy(mask,directory);
pstrcpy(directory,"./");
} else {
pstrcpy(mask,p+1);
*p = 0;
}
DEBUG(5,("dir=%s, mask = %s\n",directory, mask));
pdata = *ppdata = Realloc(*ppdata, max_data_bytes + 1024);
if(!*ppdata)
return(ERROR(ERRDOS,ERRnomem));
bzero(pdata,max_data_bytes);
/* Realloc the params space */
params = *pparams = Realloc(*pparams, 10);
if(params == NULL)
return(ERROR(ERRDOS,ERRnomem));
dptr_num = dptr_create(cnum,directory, True ,SVAL(inbuf,smb_pid));
if (dptr_num < 0)
return(ERROR(ERRDOS,ERRbadfile));
/* convert the formatted masks */
{
p = mask;
while (*p) {
if (*p == '<') {
pstring expnd;
if(p[1] != '"') {
pstrcpy( expnd, p+1 );
*p++ = '*';
*p = '.';
safe_strcpy( p+1, expnd, p - mask - 1);
} else
*p = '*';
}
if (*p == '>') *p = '?';
if (*p == '"') *p = '.';
p++;
}
}
/* a special case for 16 bit apps */
if (strequal(mask,"????????.???")) pstrcpy(mask,"*");
/* handle broken clients that send us old 8.3 format */
string_sub(mask,"????????","*");
string_sub(mask,".???",".*");
/* Save the wildcard match and attribs we are using on this directory -
needed as lanman2 assumes these are being saved between calls */
if(!(wcard = strdup(mask))) {
dptr_close(dptr_num);
return(ERROR(ERRDOS,ERRnomem));
}
dptr_set_wcard(dptr_num, wcard);
dptr_set_attr(dptr_num, dirtype);
DEBUG(4,("dptr_num is %d, wcard = %s, attr = %d\n",dptr_num, wcard, dirtype));
/* We don't need to check for VOL here as this is returned by
a different TRANS2 call. */
DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
Connections[cnum].dirpath,lp_dontdescend(SNUM(cnum))));
if (in_list(Connections[cnum].dirpath,lp_dontdescend(SNUM(cnum)),case_sensitive))
dont_descend = True;
p = pdata;
space_remaining = max_data_bytes;
out_of_space = False;
for (i=0;(i<maxentries) && !finished && !out_of_space;i++)
{
/* this is a heuristic to avoid seeking the dirptr except when
absolutely necessary. It allows for a filename of about 40 chars */
if (space_remaining < DIRLEN_GUESS && numentries > 0)
{
out_of_space = True;
finished = False;
}
else
{
finished =
!get_lanman2_dir_entry(cnum,mask,dirtype,info_level,
requires_resume_key,dont_descend,
&p,pdata,space_remaining, &out_of_space,
&last_name_off);
}
if (finished && out_of_space)
finished = False;
if (!finished && !out_of_space)
numentries++;
space_remaining = max_data_bytes - PTR_DIFF(p,pdata);
}
/* Check if we can close the dirptr */
if(close_after_first || (finished && close_if_end))
{
dptr_close(dptr_num);
DEBUG(5,("call_trans2findfirst - (2) closing dptr_num %d\n", dptr_num));
dptr_num = -1;
}
/*
* If there are no matching entries we must return ERRDOS/ERRbadfile -
* from observation of NT.
*/
if(numentries == 0)
return(ERROR(ERRDOS,ERRbadfile));
/* At this point pdata points to numentries directory entries. */
/* Set up the return parameter block */
SSVAL(params,0,dptr_num);
SSVAL(params,2,numentries);
SSVAL(params,4,finished);
SSVAL(params,6,0); /* Never an EA error */
SSVAL(params,8,last_name_off);
send_trans2_replies( outbuf, bufsize, params, 10, pdata, PTR_DIFF(p,pdata));
if ((! *directory) && dptr_path(dptr_num))
slprintf(directory,sizeof(directory)-1, "(%s)",dptr_path(dptr_num));
DEBUG(4,("%s %s mask=%s directory=%s cnum=%d dirtype=%d numentries=%d\n",
timestring(),
smb_fn_name(CVAL(inbuf,smb_com)),
mask,directory,cnum,dirtype,numentries));
return(-1);
}
/****************************************************************************
reply to a TRANS2_FINDNEXT
****************************************************************************/
static int call_trans2findnext(char *inbuf, char *outbuf, int length, int bufsize,
int cnum, char **pparams, char **ppdata)
{
/* We must be careful here that we don't return more than the
allowed number of data bytes. If this means returning fewer than
maxentries then so be it. We assume that the redirector has
enough room for the fixed number of parameter bytes it has
requested. */
int max_data_bytes = SVAL(inbuf, smb_mdrcnt);
char *params = *pparams;
char *pdata = *ppdata;
int16 dptr_num = SVAL(params,0);
int maxentries = SVAL(params,2);
uint16 info_level = SVAL(params,4);
uint32 resume_key = IVAL(params,6);
BOOL close_after_request = BITSETW(params+10,0);
BOOL close_if_end = BITSETW(params+10,1);
BOOL requires_resume_key = BITSETW(params+10,2);
BOOL continue_bit = BITSETW(params+10,3);
pstring resume_name;
pstring mask;
pstring directory;
char *p;
uint16 dirtype;
int numentries = 0;
int i, last_name_off=0;
BOOL finished = False;
BOOL dont_descend = False;
BOOL out_of_space = False;
int space_remaining;
*mask = *directory = *resume_name = 0;
pstrcpy( resume_name, params+12);
DEBUG(3,("call_trans2findnext: dirhandle = %d, max_data_bytes = %d, maxentries = %d, \
close_after_request=%d, close_if_end = %d requires_resume_key = %d \
resume_key = %d resume name = %s continue=%d level = %d\n",
dptr_num, max_data_bytes, maxentries, close_after_request, close_if_end,
requires_resume_key, resume_key, resume_name, continue_bit, info_level));
switch (info_level)
{
case 1:
case 2:
case 3:
case 4:
case SMB_FIND_FILE_DIRECTORY_INFO:
case SMB_FIND_FILE_FULL_DIRECTORY_INFO:
case SMB_FIND_FILE_NAMES_INFO:
case SMB_FIND_FILE_BOTH_DIRECTORY_INFO:
break;
default:
return(ERROR(ERRDOS,ERRunknownlevel));
}
pdata = *ppdata = Realloc( *ppdata, max_data_bytes + 1024);
if(!*ppdata)
return(ERROR(ERRDOS,ERRnomem));
bzero(pdata,max_data_bytes);
/* Realloc the params space */
params = *pparams = Realloc(*pparams, 6*SIZEOFWORD);
if(!params)
return(ERROR(ERRDOS,ERRnomem));
/* Check that the dptr is valid */
if(!(Connections[cnum].dirptr = dptr_fetch_lanman2(dptr_num)))
return(ERROR(ERRDOS,ERRnofiles));
string_set(&Connections[cnum].dirpath,dptr_path(dptr_num));
/* Get the wildcard mask from the dptr */
if((p = dptr_wcard(dptr_num))== NULL) {
DEBUG(2,("dptr_num %d has no wildcard\n", dptr_num));
return (ERROR(ERRDOS,ERRnofiles));
}
pstrcpy(mask, p);
pstrcpy(directory,Connections[cnum].dirpath);
/* Get the attr mask from the dptr */
dirtype = dptr_attr(dptr_num);
DEBUG(3,("dptr_num is %d, mask = %s, attr = %x, dirptr=(0x%X,%d)\n",
dptr_num, mask, dirtype,
Connections[cnum].dirptr,
TellDir(Connections[cnum].dirptr)));
/* We don't need to check for VOL here as this is returned by
a different TRANS2 call. */
DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",Connections[cnum].dirpath,lp_dontdescend(SNUM(cnum))));
if (in_list(Connections[cnum].dirpath,lp_dontdescend(SNUM(cnum)),case_sensitive))
dont_descend = True;
p = pdata;
space_remaining = max_data_bytes;
out_of_space = False;
/*
* Seek to the correct position. We no longer use the resume key but
* depend on the last file name instead.
*/
if(requires_resume_key && *resume_name && !continue_bit)
{
/*
* Fix for NT redirector problem triggered by resume key indexes
* changing between directory scans. We now return a resume key of 0
* and instead look for the filename to continue from (also given
* to us by NT/95/smbfs/smbclient). If no other scans have been done between the
* findfirst/findnext (as is usual) then the directory pointer
* should already be at the correct place. Check this by scanning
* backwards looking for an exact (ie. case sensitive) filename match.
* If we get to the beginning of the directory and haven't found it then scan
* forwards again looking for a match. JRA.
*/
int current_pos, start_pos;
char *dname;
void *dirptr = Connections[cnum].dirptr;
start_pos = TellDir(dirptr);
for(current_pos = start_pos; current_pos >= 0; current_pos--)
{
DEBUG(7,("call_trans2findnext: seeking to pos %d\n", current_pos));
SeekDir(dirptr, current_pos);
dname = ReadDirName(dirptr);
if(dname && strcsequal( resume_name, dname))
{
SeekDir(dirptr, current_pos+1);
DEBUG(7,("call_trans2findnext: got match at pos %d\n", current_pos+1 ));
break;
}
}
/*
* Scan forward from start if not found going backwards.
*/
if(current_pos < 0)
{
DEBUG(7,("call_trans2findnext: notfound: seeking to pos %d\n", start_pos));
SeekDir(dirptr, start_pos);
for(current_pos = start_pos; (dname = ReadDirName(dirptr)) != NULL; SeekDir(dirptr,++current_pos))
{
if(strcsequal( resume_name, dname))
{
SeekDir(dirptr, current_pos+1);
DEBUG(7,("call_trans2findnext: got match at pos %d\n", current_pos+1 ));
break;
}
} /* end for */
} /* end if current_pos */
} /* end if requires_resume_key && !continue_bit */
for (i=0;(i<(int)maxentries) && !finished && !out_of_space ;i++)
{
/* this is a heuristic to avoid seeking the dirptr except when
absolutely necessary. It allows for a filename of about 40 chars */
if (space_remaining < DIRLEN_GUESS && numentries > 0)
{
out_of_space = True;
finished = False;
}
else
{
finished =
!get_lanman2_dir_entry(cnum,mask,dirtype,info_level,
requires_resume_key,dont_descend,
&p,pdata,space_remaining, &out_of_space,
&last_name_off);
}
if (finished && out_of_space)
finished = False;
if (!finished && !out_of_space)
numentries++;
space_remaining = max_data_bytes - PTR_DIFF(p,pdata);
}
/* Check if we can close the dirptr */
if(close_after_request || (finished && close_if_end))
{
dptr_close(dptr_num); /* This frees up the saved mask */
DEBUG(5,("call_trans2findnext: closing dptr_num = %d\n", dptr_num));
dptr_num = -1;
}
/* Set up the return parameter block */
SSVAL(params,0,numentries);
SSVAL(params,2,finished);
SSVAL(params,4,0); /* Never an EA error */
SSVAL(params,6,last_name_off);
send_trans2_replies( outbuf, bufsize, params, 8, pdata, PTR_DIFF(p,pdata));
if ((! *directory) && dptr_path(dptr_num))
slprintf(directory,sizeof(directory)-1, "(%s)",dptr_path(dptr_num));
DEBUG(3,("%s %s mask=%s directory=%s cnum=%d dirtype=%d numentries=%d\n",
timestring(),
smb_fn_name(CVAL(inbuf,smb_com)),
mask,directory,cnum,dirtype,numentries));
return(-1);
}
/****************************************************************************
reply to a TRANS2_QFSINFO (query filesystem info)
****************************************************************************/
static int call_trans2qfsinfo(char *inbuf, char *outbuf, int length, int bufsize,
int cnum, char **pparams, char **ppdata)
{
char *pdata = *ppdata;
char *params = *pparams;
uint16 info_level = SVAL(params,0);
int data_len;
struct stat st;
char *vname = volume_label(SNUM(cnum));
int snum = SNUM(cnum);
DEBUG(3,("call_trans2qfsinfo: cnum = %d, level = %d\n", cnum, info_level));
if(sys_stat(".",&st)!=0) {
DEBUG(2,("call_trans2qfsinfo: stat of . failed (%s)\n", strerror(errno)));
return (ERROR(ERRSRV,ERRinvdevice));
}
pdata = *ppdata = Realloc(*ppdata, 1024); bzero(pdata,1024);
switch (info_level)
{
case 1:
{
int dfree,dsize,bsize;
data_len = 18;
sys_disk_free(".",&bsize,&dfree,&dsize);
SIVAL(pdata,l1_idFileSystem,st.st_dev);
SIVAL(pdata,l1_cSectorUnit,bsize/512);
SIVAL(pdata,l1_cUnit,dsize);
SIVAL(pdata,l1_cUnitAvail,dfree);
SSVAL(pdata,l1_cbSector,512);
DEBUG(5,("call_trans2qfsinfo : bsize=%d, id=%x, cSectorUnit=%d, cUnit=%d, cUnitAvail=%d, cbSector=%d\n",
bsize, st.st_dev, bsize/512, dsize, dfree, 512));
break;
}
case 2:
{
/* Return volume name */
int volname_len = MIN(strlen(vname),11);
data_len = l2_vol_szVolLabel + volname_len + 1;
/*
* Add volume serial number - hash of a combination of
* the called hostname and the service name.
*/
SIVAL(pdata,0,str_checksum(lp_servicename(snum)) ^ (str_checksum(local_machine)<<16) );
SCVAL(pdata,l2_vol_cch,volname_len);
StrnCpy(pdata+l2_vol_szVolLabel,vname,volname_len);
DEBUG(5,("call_trans2qfsinfo : time = %x, namelen = %d, name = %s\n",st.st_ctime, volname_len,
pdata+l2_vol_szVolLabel));
break;
}
case SMB_QUERY_FS_ATTRIBUTE_INFO:
data_len = 12 + 2*strlen(FSTYPE_STRING);
SIVAL(pdata,0,0x4006); /* FS ATTRIBUTES == long filenames supported? */
SIVAL(pdata,4,128); /* Max filename component length */
SIVAL(pdata,8,2*strlen(FSTYPE_STRING));
PutUniCode(pdata+12,FSTYPE_STRING);
break;
case SMB_QUERY_FS_LABEL_INFO:
data_len = 4 + strlen(vname);
SIVAL(pdata,0,strlen(vname));
pstrcpy(pdata+4,vname);
break;
case SMB_QUERY_FS_VOLUME_INFO:
data_len = 18 + 2*strlen(vname);
/*
* Add volume serial number - hash of a combination of
* the called hostname and the service name.
*/
SIVAL(pdata,8,str_checksum(lp_servicename(snum)) ^ (str_checksum(local_machine)<<16) );
SIVAL(pdata,12,2*strlen(vname));
PutUniCode(pdata+18,vname);
DEBUG(5,("call_trans2qfsinfo : SMB_QUERY_FS_VOLUME_INFO namelen = %d, vol = %s\n", strlen(vname),
vname));
break;
case SMB_QUERY_FS_SIZE_INFO:
{
int dfree,dsize,bsize;
data_len = 24;
sys_disk_free(".",&bsize,&dfree,&dsize);
SIVAL(pdata,0,dsize);
SIVAL(pdata,8,dfree);
SIVAL(pdata,16,bsize/512);
SIVAL(pdata,20,512);
}
break;
case SMB_QUERY_FS_DEVICE_INFO:
data_len = 8;
SIVAL(pdata,0,0); /* dev type */
SIVAL(pdata,4,0); /* characteristics */
break;
default:
return(ERROR(ERRDOS,ERRunknownlevel));
}
send_trans2_replies( outbuf, bufsize, params, 0, pdata, data_len);
DEBUG(4,("%s %s info_level =%d\n",timestring(),smb_fn_name(CVAL(inbuf,smb_com)), info_level));
return -1;
}
/****************************************************************************
reply to a TRANS2_SETFSINFO (set filesystem info)
****************************************************************************/
static int call_trans2setfsinfo(char *inbuf, char *outbuf, int length, int bufsize,
int cnum, char **pparams, char **ppdata)
{
/* Just say yes we did it - there is nothing that
can be set here so it doesn't matter. */
int outsize;
DEBUG(3,("call_trans2setfsinfo\n"));
if (!CAN_WRITE(cnum))
return(ERROR(ERRSRV,ERRaccess));
outsize = set_message(outbuf,10,0,True);
return outsize;
}
/****************************************************************************
reply to a TRANS2_QFILEINFO (query file info by fileid)
****************************************************************************/
static int call_trans2qfilepathinfo(char *inbuf, char *outbuf, int length,
int bufsize,int cnum,
char **pparams,char **ppdata,
int total_data)
{
char *params = *pparams;
char *pdata = *ppdata;
uint16 tran_call = SVAL(inbuf, smb_setup0);
uint16 info_level;
int mode=0;
int size=0;
unsigned int data_size;
struct stat sbuf;
pstring fname1;
char *fname;
char *p;
int l,pos;
BOOL bad_path = False;
if (tran_call == TRANSACT2_QFILEINFO) {
int16 fnum = SVALS(params,0);
info_level = SVAL(params,2);
CHECK_FNUM(fnum,cnum);
CHECK_ERROR(fnum);
fname = Files[fnum].name;
if (fstat(Files[fnum].fd_ptr->fd,&sbuf) != 0) {
DEBUG(3,("fstat of fnum %d failed (%s)\n",fnum, strerror(errno)));
return(UNIXERROR(ERRDOS,ERRbadfid));
}
pos = lseek(Files[fnum].fd_ptr->fd,0,SEEK_CUR);
} else {
/* qpathinfo */
info_level = SVAL(params,0);
fname = &fname1[0];
pstrcpy(fname,¶ms[6]);
unix_convert(fname,cnum,0,&bad_path);
if (!check_name(fname,cnum) || sys_stat(fname,&sbuf)) {
DEBUG(3,("fileinfo of %s failed (%s)\n",fname,strerror(errno)));
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
return(UNIXERROR(ERRDOS,ERRbadpath));
}
pos = 0;
}
DEBUG(3,("call_trans2qfilepathinfo %s level=%d call=%d total_data=%d\n",
fname,info_level,tran_call,total_data));
p = strrchr(fname,'/');
if (!p)
p = fname;
else
p++;
l = strlen(p);
mode = dos_mode(cnum,fname,&sbuf);
size = sbuf.st_size;
if (mode & aDIR) size = 0;
params = *pparams = Realloc(*pparams,2); bzero(params,2);
data_size = 1024;
pdata = *ppdata = Realloc(*ppdata, data_size);
if (total_data > 0 && IVAL(pdata,0) == total_data) {
/* uggh, EAs for OS2 */
DEBUG(4,("Rejecting EA request with total_data=%d\n",total_data));
return(ERROR(ERRDOS,ERROR_EAS_NOT_SUPPORTED));
}
bzero(pdata,data_size);
switch (info_level)
{
case SMB_INFO_STANDARD:
case SMB_INFO_QUERY_EA_SIZE:
data_size = (info_level==1?22:26);
put_dos_date2(pdata,l1_fdateCreation,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(cnum))));
put_dos_date2(pdata,l1_fdateLastAccess,sbuf.st_atime);
put_dos_date2(pdata,l1_fdateLastWrite,sbuf.st_mtime); /* write time */
SIVAL(pdata,l1_cbFile,size);
SIVAL(pdata,l1_cbFileAlloc,ROUNDUP(size,1024));
SSVAL(pdata,l1_attrFile,mode);
SIVAL(pdata,l1_attrFile+2,4); /* this is what OS2 does */
break;
case SMB_INFO_QUERY_EAS_FROM_LIST:
data_size = 24;
put_dos_date2(pdata,0,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(cnum))));
put_dos_date2(pdata,4,sbuf.st_atime);
put_dos_date2(pdata,8,sbuf.st_mtime);
SIVAL(pdata,12,size);
SIVAL(pdata,16,ROUNDUP(size,1024));
SIVAL(pdata,20,mode);
break;
case SMB_INFO_QUERY_ALL_EAS:
data_size = 4;
SIVAL(pdata,0,data_size);
break;
case 6:
return(ERROR(ERRDOS,ERRbadfunc)); /* os/2 needs this */
case SMB_QUERY_FILE_BASIC_INFO:
data_size = 36; /* w95 returns 40 bytes not 36 - why ?. */
put_long_date(pdata,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(cnum))));
put_long_date(pdata+8,sbuf.st_atime);
put_long_date(pdata+16,sbuf.st_mtime); /* write time */
put_long_date(pdata+24,sbuf.st_mtime); /* change time */
SIVAL(pdata,32,mode);
DEBUG(5,("SMB_QFBI - "));
{
time_t create_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(cnum)));
DEBUG(5,("create: %s ", ctime(&create_time)));
}
DEBUG(5,("access: %s ", ctime(&sbuf.st_atime)));
DEBUG(5,("write: %s ", ctime(&sbuf.st_mtime)));
DEBUG(5,("change: %s ", ctime(&sbuf.st_mtime)));
DEBUG(5,("mode: %x\n", mode));
break;
case SMB_QUERY_FILE_STANDARD_INFO:
data_size = 22;
SIVAL(pdata,0,size);
SIVAL(pdata,8,size);
SIVAL(pdata,16,sbuf.st_nlink);
CVAL(pdata,20) = 0;
CVAL(pdata,21) = (mode&aDIR)?1:0;
break;
case SMB_QUERY_FILE_EA_INFO:
data_size = 4;
break;
/* Get the 8.3 name - used if NT SMB was negotiated. */
case SMB_QUERY_FILE_ALT_NAME_INFO:
{
pstring short_name;
pstrcpy(short_name,fname);
/* Mangle if not already 8.3 */
if(!is_8_3(short_name, True))
{
if(!name_map_mangle(short_name,True,SNUM(cnum)))
*short_name = '\0';
}
strncpy(pdata + 4,short_name,12);
(pdata + 4)[12] = 0;
strupper(pdata + 4);
l = strlen(pdata + 4);
data_size = 4 + l;
SIVAL(pdata,0,l);
}
break;
case SMB_QUERY_FILE_NAME_INFO:
data_size = 4 + l;
SIVAL(pdata,0,l);
pstrcpy(pdata+4,fname);
break;
case SMB_QUERY_FILE_ALLOCATION_INFO:
case SMB_QUERY_FILE_END_OF_FILEINFO:
data_size = 8;
SIVAL(pdata,0,size);
break;
case SMB_QUERY_FILE_ALL_INFO:
put_long_date(pdata,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(cnum))));
put_long_date(pdata+8,sbuf.st_atime);
put_long_date(pdata+16,sbuf.st_mtime); /* write time */
put_long_date(pdata+24,sbuf.st_mtime); /* change time */
SIVAL(pdata,32,mode);
pdata += 40;
SIVAL(pdata,0,size);
SIVAL(pdata,8,size);
SIVAL(pdata,16,sbuf.st_nlink);
CVAL(pdata,20) = 0;
CVAL(pdata,21) = (mode&aDIR)?1:0;
pdata += 24;
pdata += 8; /* index number */
pdata += 4; /* EA info */
if (mode & aRONLY)
SIVAL(pdata,0,0xA9);
else
SIVAL(pdata,0,0xd01BF);
pdata += 4;
SIVAL(pdata,0,pos); /* current offset */
pdata += 8;
SIVAL(pdata,0,mode); /* is this the right sort of mode info? */
pdata += 4;
pdata += 4; /* alignment */
SIVAL(pdata,0,l);
pstrcpy(pdata+4,fname);
pdata += 4 + l;
data_size = PTR_DIFF(pdata,(*ppdata));
break;
case SMB_QUERY_FILE_STREAM_INFO:
data_size = 24 + l;
SIVAL(pdata,0,pos);
SIVAL(pdata,4,size);
SIVAL(pdata,12,size);
SIVAL(pdata,20,l);
pstrcpy(pdata+24,fname);
break;
default:
return(ERROR(ERRDOS,ERRunknownlevel));
}
send_trans2_replies( outbuf, bufsize, params, 2, *ppdata, data_size);
return(-1);
}
/****************************************************************************
reply to a TRANS2_SETFILEINFO (set file info by fileid)
****************************************************************************/
static int call_trans2setfilepathinfo(char *inbuf, char *outbuf, int length,
int bufsize, int cnum, char **pparams,
char **ppdata, int total_data)
{
char *params = *pparams;
char *pdata = *ppdata;
uint16 tran_call = SVAL(inbuf, smb_setup0);
uint16 info_level;
int mode=0;
int size=0;
struct utimbuf tvs;
struct stat st;
pstring fname1;
char *fname;
int fd = -1;
BOOL bad_path = False;
if (!CAN_WRITE(cnum))
return(ERROR(ERRSRV,ERRaccess));
if (tran_call == TRANSACT2_SETFILEINFO) {
int16 fnum = SVALS(params,0);
info_level = SVAL(params,2);
CHECK_FNUM(fnum,cnum);
CHECK_ERROR(fnum);
fname = Files[fnum].name;
fd = Files[fnum].fd_ptr->fd;
if(fstat(fd,&st)!=0) {
DEBUG(3,("fstat of %s failed (%s)\n", fname, strerror(errno)));
return(ERROR(ERRDOS,ERRbadpath));
}
} else {
/* set path info */
info_level = SVAL(params,0);
fname = fname1;
pstrcpy(fname,¶ms[6]);
unix_convert(fname,cnum,0,&bad_path);
if(!check_name(fname, cnum))
{
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
return(UNIXERROR(ERRDOS,ERRbadpath));
}
if(sys_stat(fname,&st)!=0) {
DEBUG(3,("stat of %s failed (%s)\n", fname, strerror(errno)));
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
return(UNIXERROR(ERRDOS,ERRbadpath));
}
}
DEBUG(3,("call_trans2setfilepathinfo(%d) %s info_level=%d totdata=%d\n",
tran_call,fname,info_level,total_data));
/* Realloc the parameter and data sizes */
params = *pparams = Realloc(*pparams,2); SSVAL(params,0,0);
if(params == NULL)
return(ERROR(ERRDOS,ERRnomem));
size = st.st_size;
tvs.modtime = st.st_mtime;
tvs.actime = st.st_atime;
mode = dos_mode(cnum,fname,&st);
if (total_data > 0 && IVAL(pdata,0) == total_data) {
/* uggh, EAs for OS2 */
DEBUG(4,("Rejecting EA request with total_data=%d\n",total_data));
return(ERROR(ERRDOS,ERROR_EAS_NOT_SUPPORTED));
}
switch (info_level)
{
case SMB_INFO_STANDARD:
case SMB_INFO_QUERY_EA_SIZE:
{
/* access time */
tvs.actime = make_unix_date2(pdata+l1_fdateLastAccess);
/* write time */
tvs.modtime = make_unix_date2(pdata+l1_fdateLastWrite);
mode = SVAL(pdata,l1_attrFile);
size = IVAL(pdata,l1_cbFile);
break;
}
/* XXXX um, i don't think this is right.
it's also not in the cifs6.txt spec.
*/
case SMB_INFO_QUERY_EAS_FROM_LIST:
tvs.actime = make_unix_date2(pdata+8);
tvs.modtime = make_unix_date2(pdata+12);
size = IVAL(pdata,16);
mode = IVAL(pdata,24);
break;
/* XXXX nor this. not in cifs6.txt, either. */
case SMB_INFO_QUERY_ALL_EAS:
tvs.actime = make_unix_date2(pdata+8);
tvs.modtime = make_unix_date2(pdata+12);
size = IVAL(pdata,16);
mode = IVAL(pdata,24);
break;
case SMB_SET_FILE_BASIC_INFO:
{
/* Ignore create time at offset pdata. */
/* access time */
tvs.actime = interpret_long_date(pdata+8);
/* write time + changed time, combined. */
tvs.modtime=MAX(interpret_long_date(pdata+16),
interpret_long_date(pdata+24));
#if 0 /* Needs more testing... */
/* Test from Luke to prevent Win95 from
setting incorrect values here.
*/
if (tvs.actime < tvs.modtime)
return(ERROR(ERRDOS,ERRnoaccess));
#endif /* Needs more testing... */
/* attributes */
mode = IVAL(pdata,32);
break;
}
case SMB_SET_FILE_END_OF_FILE_INFO:
{
if (IVAL(pdata,4) != 0) /* more than 32 bits? */
return(ERROR(ERRDOS,ERRunknownlevel));
size = IVAL(pdata,0);
break;
}
case SMB_SET_FILE_DISPOSITION_INFO: /* not supported yet */
case SMB_SET_FILE_ALLOCATION_INFO: /* not supported yet */
default:
{
return(ERROR(ERRDOS,ERRunknownlevel));
}
}
DEBUG(6,("actime: %s " , ctime(&tvs.actime)));
DEBUG(6,("modtime: %s ", ctime(&tvs.modtime)));
DEBUG(6,("size: %x " , size));
DEBUG(6,("mode: %x\n" , mode));
/* get some defaults (no modifications) if any info is zero. */
if (!tvs.actime) tvs.actime = st.st_atime;
if (!tvs.modtime) tvs.modtime = st.st_mtime;
if (!size) size = st.st_size;
/* Try and set the times, size and mode of this file -
if they are different from the current values
*/
if (st.st_mtime != tvs.modtime || st.st_atime != tvs.actime)
{
if(file_utime(cnum, fname, &tvs)!=0)
{
return(ERROR(ERRDOS,ERRnoaccess));
}
}
/* check the mode isn't different, before changing it */
if (mode != dos_mode(cnum, fname, &st) && dos_chmod(cnum, fname, mode, NULL))
{
DEBUG(2,("chmod of %s failed (%s)\n", fname, strerror(errno)));
return(ERROR(ERRDOS,ERRnoaccess));
}
if(size != st.st_size)
{
if (fd == -1)
{
fd = sys_open(fname,O_RDWR,0);
if (fd == -1)
{
return(ERROR(ERRDOS,ERRbadpath));
}
set_filelen(fd, size);
close(fd);
}
else
{
set_filelen(fd, size);
}
}
SSVAL(params,0,0);
send_trans2_replies(outbuf, bufsize, params, 2, *ppdata, 0);
return(-1);
}
/****************************************************************************
reply to a TRANS2_MKDIR (make directory with extended attributes).
****************************************************************************/
static int call_trans2mkdir(char *inbuf, char *outbuf, int length, int bufsize,
int cnum, char **pparams, char **ppdata)
{
char *params = *pparams;
pstring directory;
int ret = -1;
BOOL bad_path = False;
if (!CAN_WRITE(cnum))
return(ERROR(ERRSRV,ERRaccess));
pstrcpy(directory, ¶ms[4]);
DEBUG(3,("call_trans2mkdir : name = %s\n", directory));
unix_convert(directory,cnum,0,&bad_path);
if (check_name(directory,cnum))
ret = sys_mkdir(directory,unix_mode(cnum,aDIR));
if(ret < 0)
{
DEBUG(5,("call_trans2mkdir error (%s)\n", strerror(errno)));
if((errno == ENOENT) && bad_path)
{
unix_ERR_class = ERRDOS;
unix_ERR_code = ERRbadpath;
}
return(UNIXERROR(ERRDOS,ERRnoaccess));
}
/* Realloc the parameter and data sizes */
params = *pparams = Realloc(*pparams,2);
if(params == NULL)
return(ERROR(ERRDOS,ERRnomem));
SSVAL(params,0,0);
send_trans2_replies(outbuf, bufsize, params, 2, *ppdata, 0);
return(-1);
}
/****************************************************************************
reply to a TRANS2_FINDNOTIFYFIRST (start monitoring a directory for changes)
We don't actually do this - we just send a null response.
****************************************************************************/
static int call_trans2findnotifyfirst(char *inbuf, char *outbuf, int length, int bufsize,
int cnum, char **pparams, char **ppdata)
{
static uint16 fnf_handle = 257;
char *params = *pparams;
uint16 info_level = SVAL(params,4);
DEBUG(3,("call_trans2findnotifyfirst - info_level %d\n", info_level));
switch (info_level)
{
case 1:
case 2:
break;
default:
return(ERROR(ERRDOS,ERRunknownlevel));
}
/* Realloc the parameter and data sizes */
params = *pparams = Realloc(*pparams,6);
if(params == NULL)
return(ERROR(ERRDOS,ERRnomem));
SSVAL(params,0,fnf_handle);
SSVAL(params,2,0); /* No changes */
SSVAL(params,4,0); /* No EA errors */
fnf_handle++;
if(fnf_handle == 0)
fnf_handle = 257;
send_trans2_replies(outbuf, bufsize, params, 6, *ppdata, 0);
return(-1);
}
/****************************************************************************
reply to a TRANS2_FINDNOTIFYNEXT (continue monitoring a directory for
changes). Currently this does nothing.
****************************************************************************/
static int call_trans2findnotifynext(char *inbuf, char *outbuf, int length, int bufsize,
int cnum, char **pparams, char **ppdata)
{
char *params = *pparams;
DEBUG(3,("call_trans2findnotifynext\n"));
/* Realloc the parameter and data sizes */
params = *pparams = Realloc(*pparams,4);
if(params == NULL)
return(ERROR(ERRDOS,ERRnomem));
SSVAL(params,0,0); /* No changes */
SSVAL(params,2,0); /* No EA errors */
send_trans2_replies(outbuf, bufsize, params, 4, *ppdata, 0);
return(-1);
}
/****************************************************************************
reply to a SMBfindclose (stop trans2 directory search)
****************************************************************************/
int reply_findclose(char *inbuf,char *outbuf,int length,int bufsize)
{
int cnum;
int outsize = 0;
int16 dptr_num=SVALS(inbuf,smb_vwv0);
cnum = SVAL(inbuf,smb_tid);
DEBUG(3,("reply_findclose, cnum = %d, dptr_num = %d\n", cnum, dptr_num));
dptr_close(dptr_num);
outsize = set_message(outbuf,0,0,True);
DEBUG(3,("%s SMBfindclose cnum=%d, dptr_num = %d\n",timestring(),cnum,dptr_num));
return(outsize);
}
/****************************************************************************
reply to a SMBfindnclose (stop FINDNOTIFYFIRST directory search)
****************************************************************************/
int reply_findnclose(char *inbuf,char *outbuf,int length,int bufsize)
{
int cnum;
int outsize = 0;
int dptr_num= -1;
cnum = SVAL(inbuf,smb_tid);
dptr_num = SVAL(inbuf,smb_vwv0);
DEBUG(3,("reply_findnclose, cnum = %d, dptr_num = %d\n", cnum, dptr_num));
/* We never give out valid handles for a
findnotifyfirst - so any dptr_num is ok here.
Just ignore it. */
outsize = set_message(outbuf,0,0,True);
DEBUG(3,("%s SMB_findnclose cnum=%d, dptr_num = %d\n",timestring(),cnum,dptr_num));
return(outsize);
}
/****************************************************************************
reply to a SMBtranss2 - just ignore it!
****************************************************************************/
int reply_transs2(char *inbuf,char *outbuf,int length,int bufsize)
{
DEBUG(4,("Ignoring transs2 of length %d\n",length));
return(-1);
}
/****************************************************************************
reply to a SMBtrans2
****************************************************************************/
int reply_trans2(char *inbuf,char *outbuf,int length,int bufsize)
{
int outsize = 0;
int cnum = SVAL(inbuf,smb_tid);
unsigned int total_params = SVAL(inbuf, smb_tpscnt);
unsigned int total_data =SVAL(inbuf, smb_tdscnt);
#if 0
unsigned int max_param_reply = SVAL(inbuf, smb_mprcnt);
unsigned int max_data_reply = SVAL(inbuf, smb_mdrcnt);
unsigned int max_setup_fields = SVAL(inbuf, smb_msrcnt);
BOOL close_tid = BITSETW(inbuf+smb_flags,0);
BOOL no_final_response = BITSETW(inbuf+smb_flags,1);
int32 timeout = IVALS(inbuf,smb_timeout);
#endif
unsigned int suwcnt = SVAL(inbuf, smb_suwcnt);
unsigned int tran_call = SVAL(inbuf, smb_setup0);
char *params = NULL, *data = NULL;
int num_params, num_params_sofar, num_data, num_data_sofar;
if(global_oplock_break && (tran_call == TRANSACT2_OPEN))
{
/*
* Queue this open message as we are the process of an oplock break.
*/
DEBUG(2,("%s: reply_trans2: queueing message trans2open due to being in oplock break state.\n",
timestring() ));
push_smb_message( inbuf, length);
return -1;
}
outsize = set_message(outbuf,0,0,True);
/* All trans2 messages we handle have smb_sucnt == 1 - ensure this
is so as a sanity check */
if(suwcnt != 1 )
{
DEBUG(2,("Invalid smb_sucnt in trans2 call\n"));
return(ERROR(ERRSRV,ERRerror));
}
/* Allocate the space for the maximum needed parameters and data */
if (total_params > 0)
params = (char *)malloc(total_params);
if (total_data > 0)
data = (char *)malloc(total_data);
if ((total_params && !params) || (total_data && !data))
{
DEBUG(2,("Out of memory in reply_trans2\n"));
return(ERROR(ERRDOS,ERRnomem));
}
/* Copy the param and data bytes sent with this request into
the params buffer */
num_params = num_params_sofar = SVAL(inbuf,smb_pscnt);
num_data = num_data_sofar = SVAL(inbuf, smb_dscnt);
if (num_params > total_params || num_data > total_data)
exit_server("invalid params in reply_trans2");
if(params)
memcpy( params, smb_base(inbuf) + SVAL(inbuf, smb_psoff), num_params);
if(data)
memcpy( data, smb_base(inbuf) + SVAL(inbuf, smb_dsoff), num_data);
if(num_data_sofar < total_data || num_params_sofar < total_params)
{
/* We need to send an interim response then receive the rest
of the parameter/data bytes */
outsize = set_message(outbuf,0,0,True);
send_smb(Client,outbuf);
while( num_data_sofar < total_data || num_params_sofar < total_params)
{
BOOL ret;
ret = receive_next_smb(Client,oplock_sock,inbuf,bufsize,
SMB_SECONDARY_WAIT);
if((ret && (CVAL(inbuf, smb_com) != SMBtranss2)) || !ret)
{
outsize = set_message(outbuf,0,0,True);
if(ret)
DEBUG(0,("reply_trans2: Invalid secondary trans2 packet\n"));
else
DEBUG(0,("reply_trans2: %s in getting secondary trans2 response.\n",
(smb_read_error == READ_ERROR) ? "error" : "timeout" ));
if(params)
free(params);
if(data)
free(data);
return(ERROR(ERRSRV,ERRerror));
}
/* Revise total_params and total_data in case they have changed downwards */
total_params = SVAL(inbuf, smb_tpscnt);
total_data = SVAL(inbuf, smb_tdscnt);
num_params_sofar += (num_params = SVAL(inbuf,smb_spscnt));
num_data_sofar += ( num_data = SVAL(inbuf, smb_sdscnt));
if (num_params_sofar > total_params || num_data_sofar > total_data)
exit_server("data overflow in trans2");
memcpy( ¶ms[ SVAL(inbuf, smb_spsdisp)],
smb_base(inbuf) + SVAL(inbuf, smb_spsoff), num_params);
memcpy( &data[SVAL(inbuf, smb_sdsdisp)],
smb_base(inbuf)+ SVAL(inbuf, smb_sdsoff), num_data);
}
}
if (Protocol >= PROTOCOL_NT1) {
uint16 flg2 = SVAL(outbuf,smb_flg2);
SSVAL(outbuf,smb_flg2,flg2 | 0x40); /* IS_LONG_NAME */
}
/* Now we must call the relevant TRANS2 function */
switch(tran_call)
{
case TRANSACT2_OPEN:
outsize = call_trans2open(inbuf, outbuf, bufsize, cnum, ¶ms, &data);
break;
case TRANSACT2_FINDFIRST:
outsize = call_trans2findfirst(inbuf, outbuf, bufsize, cnum, ¶ms, &data);
break;
case TRANSACT2_FINDNEXT:
outsize = call_trans2findnext(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data);
break;
case TRANSACT2_QFSINFO:
outsize = call_trans2qfsinfo(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data);
break;
case TRANSACT2_SETFSINFO:
outsize = call_trans2setfsinfo(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data);
break;
case TRANSACT2_QPATHINFO:
case TRANSACT2_QFILEINFO:
outsize = call_trans2qfilepathinfo(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data, total_data);
break;
case TRANSACT2_SETPATHINFO:
case TRANSACT2_SETFILEINFO:
outsize = call_trans2setfilepathinfo(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data, total_data);
break;
case TRANSACT2_FINDNOTIFYFIRST:
outsize = call_trans2findnotifyfirst(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data);
break;
case TRANSACT2_FINDNOTIFYNEXT:
outsize = call_trans2findnotifynext(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data);
break;
case TRANSACT2_MKDIR:
outsize = call_trans2mkdir(inbuf, outbuf, length, bufsize, cnum, ¶ms, &data);
break;
default:
/* Error in request */
DEBUG(2,("%s Unknown request %d in trans2 call\n",timestring(), tran_call));
if(params)
free(params);
if(data)
free(data);
return (ERROR(ERRSRV,ERRerror));
}
/* As we do not know how many data packets will need to be
returned here the various call_trans2xxxx calls
must send their own. Thus a call_trans2xxx routine only
returns a value other than -1 when it wants to send
an error packet.
*/
if(params)
free(params);
if(data)
free(data);
return outsize; /* If a correct response was needed the call_trans2xxx
calls have already sent it. If outsize != -1 then it is
returning an error packet. */
}
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