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samba-mirror/source3/smbd/nttrans.c
Volker Lendecke 2ea14d4e98 r24433: Convert reply_ntrename to the new API 
(This used to be commit 42b07a52b9)
2007-10-10 12:29:46 -05:00

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/*
Unix SMB/CIFS implementation.
SMB NT transaction handling
Copyright (C) Jeremy Allison 1994-1998
Copyright (C) Stefan (metze) Metzmacher 2003
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
extern int max_send;
extern enum protocol_types Protocol;
extern int smb_read_error;
extern struct current_user current_user;
static const char *known_nt_pipes[] = {
"\\LANMAN",
"\\srvsvc",
"\\samr",
"\\wkssvc",
"\\NETLOGON",
"\\ntlsa",
"\\ntsvcs",
"\\lsass",
"\\lsarpc",
"\\winreg",
"\\initshutdown",
"\\spoolss",
"\\netdfs",
"\\rpcecho",
"\\svcctl",
"\\eventlog",
"\\unixinfo",
NULL
};
static char *nttrans_realloc(char **ptr, size_t size)
{
if (ptr==NULL) {
smb_panic("nttrans_realloc() called with NULL ptr");
}
*ptr = (char *)SMB_REALLOC(*ptr, size);
if(*ptr == NULL) {
return NULL;
}
memset(*ptr,'\0',size);
return *ptr;
}
/****************************************************************************
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.
****************************************************************************/
void send_nt_replies(struct smb_request *req, NTSTATUS nt_error,
char *params, int paramsize,
char *pdata, int datasize)
{
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;
/*
* If there genuinely are no parameters or data to send just send
* the empty packet.
*/
if(params_to_send == 0 && data_to_send == 0) {
reply_outbuf(req, 18, 0);
show_msg((char *)req->outbuf);
return;
}
/*
* 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 a four byte
* boundary (2 bytes for data len, one byte pad).
* NT needs this to work correctly.
*/
useable_space = max_send - (smb_size
+ 2 * 18 /* wct */
+ alignment_offset
+ data_alignment_offset);
/*
* 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);
reply_outbuf(req, 18, total_sent_thistime);
/*
* Set total params and data to be sent.
*/
SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize);
SIVAL(req->outbuf,smb_ntr_TotalDataCount,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);
SIVAL(req->outbuf, smb_ntr_ParameterCount,
params_sent_thistime);
if(params_sent_thistime == 0) {
SIVAL(req->outbuf,smb_ntr_ParameterOffset,0);
SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0);
} else {
/*
* smb_ntr_ParameterOffset 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.
*/
SIVAL(req->outbuf,smb_ntr_ParameterOffset,
((smb_buf(req->outbuf)+alignment_offset)
- smb_base(req->outbuf)));
/*
* Absolute displacement of param bytes sent in this packet.
*/
SIVAL(req->outbuf, smb_ntr_ParameterDisplacement,
pp - params);
}
/*
* Deal with the data portion.
*/
SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime);
if(data_sent_thistime == 0) {
SIVAL(req->outbuf,smb_ntr_DataOffset,0);
SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0);
} else {
/*
* The offset of the data bytes is the offset of the
* parameter bytes plus the number of parameters being sent this time.
*/
SIVAL(req->outbuf, smb_ntr_DataOffset,
((smb_buf(req->outbuf)+alignment_offset) -
smb_base(req->outbuf))
+ params_sent_thistime + data_alignment_offset);
SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata);
}
/*
* Copy the param bytes into the packet.
*/
if(params_sent_thistime) {
if (alignment_offset != 0) {
memset(smb_buf(req->outbuf), 0,
alignment_offset);
}
memcpy((smb_buf(req->outbuf)+alignment_offset), pp,
params_sent_thistime);
}
/*
* Copy in the data bytes
*/
if(data_sent_thistime) {
if (data_alignment_offset != 0) {
memset((smb_buf(req->outbuf)+alignment_offset+
params_sent_thistime), 0,
data_alignment_offset);
}
memcpy(smb_buf(req->outbuf)+alignment_offset
+params_sent_thistime+data_alignment_offset,
pd,data_sent_thistime);
}
DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n",
params_sent_thistime, data_sent_thistime, useable_space));
DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n",
params_to_send, data_to_send, paramsize, datasize));
if (NT_STATUS_V(nt_error)) {
error_packet_set((char *)req->outbuf,
0, 0, nt_error,
__LINE__,__FILE__);
}
/* Send the packet */
show_msg((char *)req->outbuf);
if (!send_smb(smbd_server_fd(),(char *)req->outbuf)) {
exit_server_cleanly("send_nt_replies: send_smb failed.");
}
TALLOC_FREE(req->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(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!",
params_to_send, data_to_send));
return;
}
}
}
/****************************************************************************
Is it an NTFS stream name ?
****************************************************************************/
BOOL is_ntfs_stream_name(const char *fname)
{
if (lp_posix_pathnames()) {
return False;
}
return (strchr_m(fname, ':') != NULL) ? True : False;
}
struct case_semantics_state {
connection_struct *conn;
BOOL case_sensitive;
BOOL case_preserve;
BOOL short_case_preserve;
};
/****************************************************************************
Restore case semantics.
****************************************************************************/
static int restore_case_semantics(struct case_semantics_state *state)
{
state->conn->case_sensitive = state->case_sensitive;
state->conn->case_preserve = state->case_preserve;
state->conn->short_case_preserve = state->short_case_preserve;
return 0;
}
/****************************************************************************
Save case semantics.
****************************************************************************/
static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx,
connection_struct *conn)
{
struct case_semantics_state *result;
if (!(result = talloc(mem_ctx, struct case_semantics_state))) {
DEBUG(0, ("talloc failed\n"));
return NULL;
}
result->conn = conn;
result->case_sensitive = conn->case_sensitive;
result->case_preserve = conn->case_preserve;
result->short_case_preserve = conn->short_case_preserve;
/* Set to POSIX. */
conn->case_sensitive = True;
conn->case_preserve = True;
conn->short_case_preserve = True;
talloc_set_destructor(result, restore_case_semantics);
return result;
}
/****************************************************************************
Reply to an NT create and X call on a pipe
****************************************************************************/
static void nt_open_pipe(char *fname, connection_struct *conn,
struct smb_request *req, int *ppnum)
{
smb_np_struct *p = NULL;
int i;
DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
/* See if it is one we want to handle. */
if (lp_disable_spoolss() && strequal(fname, "\\spoolss")) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
for( i = 0; known_nt_pipes[i]; i++ ) {
if( strequal(fname,known_nt_pipes[i])) {
break;
}
}
if ( known_nt_pipes[i] == NULL ) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
/* Strip \\ off the name. */
fname++;
DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
p = open_rpc_pipe_p(fname, conn, req->vuid);
if (!p) {
reply_doserror(req, ERRSRV, ERRnofids);
return;
}
/* TODO: Add pipe to db */
if ( !store_pipe_opendb( p ) ) {
DEBUG(3,("nt_open_pipe: failed to store %s pipe open.\n", fname));
}
*ppnum = p->pnum;
return;
}
/****************************************************************************
Reply to an NT create and X call for pipes.
****************************************************************************/
static void do_ntcreate_pipe_open(connection_struct *conn,
struct smb_request *req)
{
pstring fname;
int pnum = -1;
char *p = NULL;
uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags);
srvstr_pull_buf((char *)req->inbuf, req->flags2, fname,
smb_buf(req->inbuf), sizeof(fname), STR_TERMINATE);
nt_open_pipe(fname, conn, req, &pnum);
if (req->outbuf) {
/* error reply */
return;
}
/*
* Deal with pipe return.
*/
if (flags & EXTENDED_RESPONSE_REQUIRED) {
/* This is very strange. We
* return 50 words, but only set
* the wcnt to 42 ? It's definately
* what happens on the wire....
*/
reply_outbuf(req, 50, 0);
SCVAL(req->outbuf,smb_wct,42);
} else {
reply_outbuf(req, 34, 0);
}
p = (char *)req->outbuf + smb_vwv2;
p++;
SSVAL(p,0,pnum);
p += 2;
SIVAL(p,0,FILE_WAS_OPENED);
p += 4;
p += 32;
SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
p += 20;
/* File type. */
SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
/* Device state. */
SSVAL(p,2, 0x5FF); /* ? */
p += 4;
if (flags & EXTENDED_RESPONSE_REQUIRED) {
p += 25;
SIVAL(p,0,FILE_GENERIC_ALL);
/*
* For pipes W2K3 seems to return
* 0x12019B next.
* This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
*/
SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
}
DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname));
chain_reply_new(req);
}
/****************************************************************************
Reply to an NT create and X call for a quota file.
****************************************************************************/
static void reply_ntcreate_and_X_quota(connection_struct *conn,
struct smb_request *req,
enum FAKE_FILE_TYPE fake_file_type,
const char *fname)
{
char *p;
uint32 desired_access = IVAL(req->inbuf,smb_ntcreate_DesiredAccess);
files_struct *fsp;
NTSTATUS status;
status = open_fake_file(conn, fake_file_type, fname, desired_access,
&fsp);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
reply_outbuf(req, 34, 0);
p = (char *)req->outbuf + smb_vwv2;
/* SCVAL(p,0,NO_OPLOCK_RETURN); */
p++;
SSVAL(p,0,fsp->fnum);
DEBUG(5,("reply_ntcreate_and_X_quota: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
chain_reply_new(req);
}
/****************************************************************************
Reply to an NT create and X call.
****************************************************************************/
void reply_ntcreate_and_X(connection_struct *conn,
struct smb_request *req)
{
pstring fname;
uint32 flags;
uint32 access_mask;
uint32 file_attributes;
uint32 share_access;
uint32 create_disposition;
uint32 create_options;
uint16 root_dir_fid;
SMB_BIG_UINT allocation_size;
/* Breakout the oplock request bits so we can set the
reply bits separately. */
int oplock_request = 0;
uint32 fattr=0;
SMB_OFF_T file_len = 0;
SMB_STRUCT_STAT sbuf;
int info = 0;
files_struct *fsp = NULL;
char *p = NULL;
struct timespec c_timespec;
struct timespec a_timespec;
struct timespec m_timespec;
BOOL extended_oplock_granted = False;
NTSTATUS status;
struct case_semantics_state *case_state = NULL;
START_PROFILE(SMBntcreateX);
if (req->wct < 24) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
flags = IVAL(req->inbuf,smb_ntcreate_Flags);
access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess);
file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes);
share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess);
create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition);
create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions);
root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid);
allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf,smb_ntcreate_AllocationSize);
#ifdef LARGE_SMB_OFF_T
allocation_size |= (((SMB_BIG_UINT)IVAL(req->inbuf,smb_ntcreate_AllocationSize + 4)) << 32);
#endif
DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x "
"file_attributes = 0x%x, share_access = 0x%x, "
"create_disposition = 0x%x create_options = 0x%x "
"root_dir_fid = 0x%x\n",
(unsigned int)flags,
(unsigned int)access_mask,
(unsigned int)file_attributes,
(unsigned int)share_access,
(unsigned int)create_disposition,
(unsigned int)create_options,
(unsigned int)root_dir_fid ));
/*
* If it's an IPC, use the pipe handler.
*/
if (IS_IPC(conn)) {
if (lp_nt_pipe_support()) {
do_ntcreate_pipe_open(conn, req);
END_PROFILE(SMBntcreateX);
return;
} else {
reply_doserror(req, ERRDOS, ERRnoaccess);
END_PROFILE(SMBntcreateX);
return;
}
}
if (create_options & FILE_OPEN_BY_FILE_ID) {
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
END_PROFILE(SMBntcreateX);
return;
}
/*
* Get the file name.
*/
if(root_dir_fid != 0) {
/*
* This filename is relative to a directory fid.
*/
pstring rel_fname;
files_struct *dir_fsp = file_fsp(
SVAL(req->inbuf, smb_ntcreate_RootDirectoryFid));
size_t dir_name_len;
if(!dir_fsp) {
reply_doserror(req, ERRDOS, ERRbadfid);
END_PROFILE(SMBntcreateX);
return;
}
if(!dir_fsp->is_directory) {
srvstr_get_path((char *)req->inbuf, req->flags2, fname,
smb_buf(req->inbuf), sizeof(fname), 0,
STR_TERMINATE, &status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
/*
* Check to see if this is a mac fork of some kind.
*/
if( is_ntfs_stream_name(fname)) {
reply_nterror(
req, NT_STATUS_OBJECT_PATH_NOT_FOUND);
END_PROFILE(SMBntcreateX);
return;
}
/*
we need to handle the case when we get a
relative open relative to a file and the
pathname is blank - this is a reopen!
(hint from demyn plantenberg)
*/
reply_doserror(req, ERRDOS, ERRbadfid);
END_PROFILE(SMBntcreateX);
return;
}
/*
* Copy in the base directory name.
*/
pstrcpy( fname, dir_fsp->fsp_name );
dir_name_len = strlen(fname);
/*
* Ensure it ends in a '\'.
*/
if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
pstrcat(fname, "/");
dir_name_len++;
}
srvstr_get_path((char *)req->inbuf, req->flags2, rel_fname,
smb_buf(req->inbuf), sizeof(rel_fname), 0,
STR_TERMINATE, &status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
pstrcat(fname, rel_fname);
} else {
srvstr_get_path((char *)req->inbuf, req->flags2, fname,
smb_buf(req->inbuf), sizeof(fname), 0,
STR_TERMINATE, &status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
/*
* Check to see if this is a mac fork of some kind.
*/
if( is_ntfs_stream_name(fname)) {
enum FAKE_FILE_TYPE fake_file_type = is_fake_file(fname);
if (fake_file_type!=FAKE_FILE_TYPE_NONE) {
/*
* Here we go! support for changing the disk quotas --metze
*
* We need to fake up to open this MAGIC QUOTA file
* and return a valid FID.
*
* w2k close this file directly after openening
* xp also tries a QUERY_FILE_INFO on the file and then close it
*/
reply_ntcreate_and_X_quota(conn, req,
fake_file_type, fname);
} else {
reply_nterror(req, NT_STATUS_OBJECT_PATH_NOT_FOUND);
}
END_PROFILE(SMBntcreateX);
return;
}
}
/*
* Now contruct the smb_open_mode value from the filename,
* desired access and the share access.
*/
status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES, fname);
if (!NT_STATUS_IS_OK(status)) {
if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
ERRSRV, ERRbadpath);
}
else {
reply_nterror(req, status);
}
END_PROFILE(SMBntcreateX);
return;
}
oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
if (oplock_request) {
oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
}
/*
* Ordinary file or directory.
*/
/*
* Check if POSIX semantics are wanted.
*/
if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
case_state = set_posix_case_semantics(NULL, conn);
file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
}
status = unix_convert(conn, fname, False, NULL, &sbuf);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
/* All file access must go through check_name() */
status = check_name(conn, fname);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
/* This is the correct thing to do (check every time) but can_delete is
expensive (it may have to read the parent directory permissions). So
for now we're not doing it unless we have a strong hint the client
is really going to delete this file. If the client is forcing FILE_CREATE
let the filesystem take care of the permissions. */
/* Setting FILE_SHARE_DELETE is the hint. */
if (lp_acl_check_permissions(SNUM(conn))
&& (create_disposition != FILE_CREATE)
&& (share_access & FILE_SHARE_DELETE)
&& (access_mask & DELETE_ACCESS)) {
if ((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY) ||
!can_delete_file_in_directory(conn, fname)) {
TALLOC_FREE(case_state);
reply_nterror(req, NT_STATUS_ACCESS_DENIED);
END_PROFILE(SMBntcreateX);
return;
}
}
#if 0
/* We need to support SeSecurityPrivilege for this. */
if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) &&
!user_has_privileges(current_user.nt_user_token,
&se_security)) {
TALLOC_FREE(case_state);
END_PROFILE(SMBntcreateX);
return ERROR_NT(NT_STATUS_PRIVILEGE_NOT_HELD);
}
#endif
/*
* If it's a request for a directory open, deal with it separately.
*/
if(create_options & FILE_DIRECTORY_FILE) {
/* Can't open a temp directory. IFS kit test. */
if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
TALLOC_FREE(case_state);
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBntcreateX);
return;
}
oplock_request = 0;
status = open_directory(conn, req, fname, &sbuf,
access_mask,
share_access,
create_disposition,
create_options,
file_attributes,
&info, &fsp);
TALLOC_FREE(case_state);
if(!NT_STATUS_IS_OK(status)) {
if (!use_nt_status() && NT_STATUS_EQUAL(
status, NT_STATUS_OBJECT_NAME_COLLISION)) {
status = NT_STATUS_DOS(ERRDOS, ERRfilexists);
}
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
} else {
/*
* Ordinary file case.
*/
/* NB. We have a potential bug here. If we
* cause an oplock break to ourselves, then we
* could end up processing filename related
* SMB requests whilst we await the oplock
* break response. As we may have changed the
* filename case semantics to be POSIX-like,
* this could mean a filename request could
* fail when it should succeed. This is a rare
* condition, but eventually we must arrange
* to restore the correct case semantics
* before issuing an oplock break request to
* our client. JRA. */
status = open_file_ntcreate(conn, req, fname, &sbuf,
access_mask,
share_access,
create_disposition,
create_options,
file_attributes,
oplock_request,
&info, &fsp);
if (!NT_STATUS_IS_OK(status)) {
/* We cheat here. There are two cases we
* care about. One is a directory rename,
* where the NT client will attempt to
* open the source directory for
* DELETE access. Note that when the
* NT client does this it does *not*
* set the directory bit in the
* request packet. This is translated
* into a read/write open
* request. POSIX states that any open
* for write request on a directory
* will generate an EISDIR error, so
* we can catch this here and open a
* pseudo handle that is flagged as a
* directory. The second is an open
* for a permissions read only, which
* we handle in the open_file_stat case. JRA.
*/
if (NT_STATUS_EQUAL(status,
NT_STATUS_FILE_IS_A_DIRECTORY)) {
/*
* Fail the open if it was explicitly a non-directory file.
*/
if (create_options & FILE_NON_DIRECTORY_FILE) {
TALLOC_FREE(case_state);
reply_force_nterror(req, NT_STATUS_FILE_IS_A_DIRECTORY);
END_PROFILE(SMBntcreateX);
return;
}
oplock_request = 0;
status = open_directory(conn, req, fname,
&sbuf,
access_mask,
share_access,
create_disposition,
create_options,
file_attributes,
&info, &fsp);
if(!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
if (!use_nt_status() && NT_STATUS_EQUAL(
status, NT_STATUS_OBJECT_NAME_COLLISION)) {
status = NT_STATUS_DOS(ERRDOS, ERRfilexists);
}
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
} else {
TALLOC_FREE(case_state);
END_PROFILE(SMBntcreateX);
if (open_was_deferred(req->mid)) {
/* We have re-scheduled this call. */
return;
}
reply_nterror(req, status);
return;
}
}
}
TALLOC_FREE(case_state);
file_len = sbuf.st_size;
fattr = dos_mode(conn,fname,&sbuf);
if(fattr == 0) {
fattr = FILE_ATTRIBUTE_NORMAL;
}
if (!fsp->is_directory && (fattr & aDIR)) {
close_file(fsp,ERROR_CLOSE);
reply_doserror(req, ERRDOS, ERRnoaccess);
END_PROFILE(SMBntcreateX);
return;
}
/* Save the requested allocation size. */
if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
if (allocation_size && (allocation_size > (SMB_BIG_UINT)file_len)) {
fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
if (fsp->is_directory) {
close_file(fsp,ERROR_CLOSE);
/* Can't set allocation size on a directory. */
reply_nterror(req, NT_STATUS_ACCESS_DENIED);
END_PROFILE(SMBntcreateX);
return;
}
if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
close_file(fsp,ERROR_CLOSE);
reply_nterror(req, NT_STATUS_DISK_FULL);
END_PROFILE(SMBntcreateX);
return;
}
} else {
fsp->initial_allocation_size = smb_roundup(fsp->conn,(SMB_BIG_UINT)file_len);
}
}
/*
* If the caller set the extended oplock request bit
* and we granted one (by whatever means) - set the
* correct bit for extended oplock reply.
*/
if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
extended_oplock_granted = True;
}
if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
extended_oplock_granted = True;
}
if (flags & EXTENDED_RESPONSE_REQUIRED) {
/* This is very strange. We
* return 50 words, but only set
* the wcnt to 42 ? It's definately
* what happens on the wire....
*/
reply_outbuf(req, 50, 0);
SCVAL(req->outbuf,smb_wct,42);
} else {
reply_outbuf(req, 34, 0);
}
p = (char *)req->outbuf + smb_vwv2;
/*
* Currently as we don't support level II oplocks we just report
* exclusive & batch here.
*/
if (extended_oplock_granted) {
if (flags & REQUEST_BATCH_OPLOCK) {
SCVAL(p,0, BATCH_OPLOCK_RETURN);
} else {
SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
}
} else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
} else {
SCVAL(p,0,NO_OPLOCK_RETURN);
}
p++;
SSVAL(p,0,fsp->fnum);
p += 2;
if ((create_disposition == FILE_SUPERSEDE) && (info == FILE_WAS_OVERWRITTEN)) {
SIVAL(p,0,FILE_WAS_SUPERSEDED);
} else {
SIVAL(p,0,info);
}
p += 4;
/* Create time. */
c_timespec = get_create_timespec(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
a_timespec = get_atimespec(&sbuf);
m_timespec = get_mtimespec(&sbuf);
if (lp_dos_filetime_resolution(SNUM(conn))) {
dos_filetime_timespec(&c_timespec);
dos_filetime_timespec(&a_timespec);
dos_filetime_timespec(&m_timespec);
}
put_long_date_timespec(p, c_timespec); /* create time. */
p += 8;
put_long_date_timespec(p, a_timespec); /* access time */
p += 8;
put_long_date_timespec(p, m_timespec); /* write time */
p += 8;
put_long_date_timespec(p, m_timespec); /* change time */
p += 8;
SIVAL(p,0,fattr); /* File Attributes. */
p += 4;
SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
p += 8;
SOFF_T(p,0,file_len);
p += 8;
if (flags & EXTENDED_RESPONSE_REQUIRED) {
SSVAL(p,2,0x7);
}
p += 4;
SCVAL(p,0,fsp->is_directory ? 1 : 0);
if (flags & EXTENDED_RESPONSE_REQUIRED) {
uint32 perms = 0;
p += 25;
if (fsp->is_directory || can_write_to_file(conn, fname, &sbuf)) {
perms = FILE_GENERIC_ALL;
} else {
perms = FILE_GENERIC_READ|FILE_EXECUTE;
}
SIVAL(p,0,perms);
}
DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name));
chain_reply_new(req);
END_PROFILE(SMBntcreateX);
return;
}
/****************************************************************************
Reply to a NT_TRANSACT_CREATE call to open a pipe.
****************************************************************************/
static void do_nt_transact_create_pipe(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup, uint32 setup_count,
char **ppparams, uint32 parameter_count,
char **ppdata, uint32 data_count)
{
pstring fname;
char *params = *ppparams;
int pnum = -1;
char *p = NULL;
NTSTATUS status;
size_t param_len;
uint32 flags;
/*
* Ensure minimum number of parameters sent.
*/
if(parameter_count < 54) {
DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count));
reply_doserror(req, ERRDOS, ERRnoaccess);
return;
}
flags = IVAL(params,0);
srvstr_get_path(params, req->flags2, fname, params+53,
sizeof(fname), parameter_count-53, STR_TERMINATE,
&status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
nt_open_pipe(fname, conn, req, &pnum);
if (req->outbuf) {
/* Error return */
return;
}
/* Realloc the size of parameters and data we will return */
if (flags & EXTENDED_RESPONSE_REQUIRED) {
/* Extended response is 32 more byyes. */
param_len = 101;
} else {
param_len = 69;
}
params = nttrans_realloc(ppparams, param_len);
if(params == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
p = params;
SCVAL(p,0,NO_OPLOCK_RETURN);
p += 2;
SSVAL(p,0,pnum);
p += 2;
SIVAL(p,0,FILE_WAS_OPENED);
p += 8;
p += 32;
SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */
p += 20;
/* File type. */
SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE);
/* Device state. */
SSVAL(p,2, 0x5FF); /* ? */
p += 4;
if (flags & EXTENDED_RESPONSE_REQUIRED) {
p += 25;
SIVAL(p,0,FILE_GENERIC_ALL);
/*
* For pipes W2K3 seems to return
* 0x12019B next.
* This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA)
*/
SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA);
}
DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname));
/* Send the required number of replies */
send_nt_replies(req, NT_STATUS_OK, params, param_len, *ppdata, 0);
return;
}
/****************************************************************************
Internal fn to set security descriptors.
****************************************************************************/
static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent)
{
prs_struct pd;
SEC_DESC *psd = NULL;
TALLOC_CTX *mem_ctx;
NTSTATUS status;
if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
return NT_STATUS_OK;
}
/*
* Init the parse struct we will unmarshall from.
*/
if ((mem_ctx = talloc_init("set_sd")) == NULL) {
DEBUG(0,("set_sd: talloc_init failed.\n"));
return NT_STATUS_NO_MEMORY;
}
prs_init(&pd, 0, mem_ctx, UNMARSHALL);
/*
* Setup the prs_struct to point at the memory we just
* allocated.
*/
prs_give_memory( &pd, data, sd_len, False);
/*
* Finally, unmarshall from the data buffer.
*/
if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n"));
/*
* Return access denied for want of a better error message..
*/
talloc_destroy(mem_ctx);
return NT_STATUS_NO_MEMORY;
}
if (psd->owner_sid==0) {
security_info_sent &= ~OWNER_SECURITY_INFORMATION;
}
if (psd->group_sid==0) {
security_info_sent &= ~GROUP_SECURITY_INFORMATION;
}
if (psd->sacl==0) {
security_info_sent &= ~SACL_SECURITY_INFORMATION;
}
if (psd->dacl==0) {
security_info_sent &= ~DACL_SECURITY_INFORMATION;
}
status = SMB_VFS_FSET_NT_ACL( fsp, fsp->fh->fd, security_info_sent, psd);
talloc_destroy(mem_ctx);
return status;
}
/****************************************************************************
Read a list of EA names and data from an incoming data buffer. Create an ea_list with them.
****************************************************************************/
static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
{
struct ea_list *ea_list_head = NULL;
size_t offset = 0;
if (data_size < 4) {
return NULL;
}
while (offset + 4 <= data_size) {
size_t next_offset = IVAL(pdata,offset);
struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL);
if (!eal) {
return NULL;
}
DLIST_ADD_END(ea_list_head, eal, struct ea_list *);
if (next_offset == 0) {
break;
}
offset += next_offset;
}
return ea_list_head;
}
/****************************************************************************
Reply to a NT_TRANSACT_CREATE call (needs to process SD's).
****************************************************************************/
static void call_nt_transact_create(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup, uint32 setup_count,
char **ppparams, uint32 parameter_count,
char **ppdata, uint32 data_count,
uint32 max_data_count)
{
pstring fname;
char *params = *ppparams;
char *data = *ppdata;
/* Breakout the oplock request bits so we can set the reply bits separately. */
int oplock_request = 0;
uint32 fattr=0;
SMB_OFF_T file_len = 0;
SMB_STRUCT_STAT sbuf;
int info = 0;
files_struct *fsp = NULL;
char *p = NULL;
BOOL extended_oplock_granted = False;
uint32 flags;
uint32 access_mask;
uint32 file_attributes;
uint32 share_access;
uint32 create_disposition;
uint32 create_options;
uint32 sd_len;
uint32 ea_len;
uint16 root_dir_fid;
struct timespec c_timespec;
struct timespec a_timespec;
struct timespec m_timespec;
struct ea_list *ea_list = NULL;
TALLOC_CTX *ctx = NULL;
char *pdata = NULL;
NTSTATUS status;
size_t param_len;
struct case_semantics_state *case_state = NULL;
DEBUG(5,("call_nt_transact_create\n"));
/*
* If it's an IPC, use the pipe handler.
*/
if (IS_IPC(conn)) {
if (lp_nt_pipe_support()) {
do_nt_transact_create_pipe(
conn, req,
ppsetup, setup_count,
ppparams, parameter_count,
ppdata, data_count);
return;
} else {
reply_doserror(req, ERRDOS, ERRnoaccess);
return;
}
}
/*
* Ensure minimum number of parameters sent.
*/
if(parameter_count < 54) {
DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count));
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
flags = IVAL(params,0);
access_mask = IVAL(params,8);
file_attributes = IVAL(params,20);
share_access = IVAL(params,24);
create_disposition = IVAL(params,28);
create_options = IVAL(params,32);
sd_len = IVAL(params,36);
ea_len = IVAL(params,40);
root_dir_fid = (uint16)IVAL(params,4);
/* Ensure the data_len is correct for the sd and ea values given. */
if ((ea_len + sd_len > data_count) ||
(ea_len > data_count) || (sd_len > data_count) ||
(ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) {
DEBUG(10,("call_nt_transact_create - ea_len = %u, sd_len = %u, data_count = %u\n",
(unsigned int)ea_len, (unsigned int)sd_len, (unsigned int)data_count ));
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
if (ea_len) {
if (!lp_ea_support(SNUM(conn))) {
DEBUG(10,("call_nt_transact_create - ea_len = %u but EA's not supported.\n",
(unsigned int)ea_len ));
reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
return;
}
if (ea_len < 10) {
DEBUG(10,("call_nt_transact_create - ea_len = %u - too small (should be more than 10)\n",
(unsigned int)ea_len ));
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
}
if (create_options & FILE_OPEN_BY_FILE_ID) {
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
return;
}
/*
* Get the file name.
*/
if(root_dir_fid != 0) {
/*
* This filename is relative to a directory fid.
*/
files_struct *dir_fsp = file_fsp(SVAL(params,4));
size_t dir_name_len;
if(!dir_fsp) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
if(!dir_fsp->is_directory) {
srvstr_get_path(params, req->flags2, fname,
params+53, sizeof(fname),
parameter_count-53, STR_TERMINATE,
&status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
/*
* Check to see if this is a mac fork of some kind.
*/
if( is_ntfs_stream_name(fname)) {
reply_nterror(req,
NT_STATUS_OBJECT_PATH_NOT_FOUND);
return;
}
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
/*
* Copy in the base directory name.
*/
pstrcpy( fname, dir_fsp->fsp_name );
dir_name_len = strlen(fname);
/*
* Ensure it ends in a '\'.
*/
if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) {
pstrcat(fname, "/");
dir_name_len++;
}
{
pstring tmpname;
srvstr_get_path(params, req->flags2, tmpname,
params+53, sizeof(tmpname),
parameter_count-53, STR_TERMINATE,
&status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
pstrcat(fname, tmpname);
}
} else {
srvstr_get_path(params, req->flags2, fname, params+53,
sizeof(fname), parameter_count-53,
STR_TERMINATE, &status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
/*
* Check to see if this is a mac fork of some kind.
*/
if( is_ntfs_stream_name(fname)) {
reply_nterror(req, NT_STATUS_OBJECT_PATH_NOT_FOUND);
return;
}
}
oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
if (oplock_request) {
oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
}
/*
* Ordinary file or directory.
*/
/*
* Check if POSIX semantics are wanted.
*/
if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
case_state = set_posix_case_semantics(NULL, conn);
file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
}
status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
fname);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
ERRSRV, ERRbadpath);
return;
}
reply_nterror(req, status);
return;
}
status = unix_convert(conn, fname, False, NULL, &sbuf);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
reply_nterror(req, status);
return;
}
/* All file access must go through check_name() */
status = check_name(conn, fname);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
reply_nterror(req, status);
return;
}
/* This is the correct thing to do (check every time) but can_delete is
expensive (it may have to read the parent directory permissions). So
for now we're not doing it unless we have a strong hint the client
is really going to delete this file. If the client is forcing FILE_CREATE
let the filesystem take care of the permissions. */
/* Setting FILE_SHARE_DELETE is the hint. */
if (lp_acl_check_permissions(SNUM(conn))
&& (create_disposition != FILE_CREATE)
&& (share_access & FILE_SHARE_DELETE)
&& (access_mask & DELETE_ACCESS)) {
if ((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY) ||
!can_delete_file_in_directory(conn, fname)) {
TALLOC_FREE(case_state);
reply_nterror(req, NT_STATUS_ACCESS_DENIED);
return;
}
}
#if 0
/* We need to support SeSecurityPrivilege for this. */
if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) &&
!user_has_privileges(current_user.nt_user_token,
&se_security)) {
TALLOC_FREE(case_state);
reply_nterror(req, NT_STATUS_PRIVILEGE_NOT_HELD);
return;
}
#endif
if (ea_len) {
pdata = data + sd_len;
/* We have already checked that ea_len <= data_count here. */
ea_list = read_nttrans_ea_list(tmp_talloc_ctx(), pdata,
ea_len);
if (!ea_list ) {
TALLOC_FREE(case_state);
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
}
/*
* If it's a request for a directory open, deal with it separately.
*/
if(create_options & FILE_DIRECTORY_FILE) {
/* Can't open a temp directory. IFS kit test. */
if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
TALLOC_FREE(case_state);
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
/*
* We will get a create directory here if the Win32
* app specified a security descriptor in the
* CreateDirectory() call.
*/
oplock_request = 0;
status = open_directory(conn, req, fname, &sbuf,
access_mask,
share_access,
create_disposition,
create_options,
file_attributes,
&info, &fsp);
if(!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
reply_nterror(req, status);
return;
}
} else {
/*
* Ordinary file case.
*/
status = open_file_ntcreate(conn,req,fname,&sbuf,
access_mask,
share_access,
create_disposition,
create_options,
file_attributes,
oplock_request,
&info, &fsp);
if (!NT_STATUS_IS_OK(status)) {
if (NT_STATUS_EQUAL(status,
NT_STATUS_FILE_IS_A_DIRECTORY)) {
/*
* Fail the open if it was explicitly a non-directory file.
*/
if (create_options & FILE_NON_DIRECTORY_FILE) {
TALLOC_FREE(case_state);
reply_force_nterror(
req,
NT_STATUS_FILE_IS_A_DIRECTORY);
return;
}
oplock_request = 0;
status = open_directory(conn, req, fname,
&sbuf,
access_mask,
share_access,
create_disposition,
create_options,
file_attributes,
&info, &fsp);
if(!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(case_state);
reply_nterror(req, status);
return;
}
} else {
TALLOC_FREE(case_state);
if (open_was_deferred(req->mid)) {
/* We have re-scheduled this call. */
return;
}
reply_nterror(req, status);
return;
}
}
}
/*
* According to the MS documentation, the only time the security
* descriptor is applied to the opened file is iff we *created* the
* file; an existing file stays the same.
*
* Also, it seems (from observation) that you can open the file with
* any access mask but you can still write the sd. We need to override
* the granted access before we call set_sd
* Patch for bug #2242 from Tom Lackemann <cessnatomny@yahoo.com>.
*/
if (lp_nt_acl_support(SNUM(conn)) && sd_len && info == FILE_WAS_CREATED) {
uint32 saved_access_mask = fsp->access_mask;
/* We have already checked that sd_len <= data_count here. */
fsp->access_mask = FILE_GENERIC_ALL;
status = set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION);
if (!NT_STATUS_IS_OK(status)) {
talloc_destroy(ctx);
close_file(fsp,ERROR_CLOSE);
TALLOC_FREE(case_state);
reply_nterror(req, status);
return;
}
fsp->access_mask = saved_access_mask;
}
if (ea_len && (info == FILE_WAS_CREATED)) {
status = set_ea(conn, fsp, fname, ea_list);
if (!NT_STATUS_IS_OK(status)) {
close_file(fsp,ERROR_CLOSE);
TALLOC_FREE(case_state);
reply_nterror(req, status);
return;
}
}
TALLOC_FREE(case_state);
file_len = sbuf.st_size;
fattr = dos_mode(conn,fname,&sbuf);
if(fattr == 0) {
fattr = FILE_ATTRIBUTE_NORMAL;
}
if (!fsp->is_directory && (fattr & aDIR)) {
close_file(fsp,ERROR_CLOSE);
reply_doserror(req, ERRDOS, ERRnoaccess);
return;
}
/* Save the requested allocation size. */
if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
SMB_BIG_UINT allocation_size = (SMB_BIG_UINT)IVAL(params,12);
#ifdef LARGE_SMB_OFF_T
allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32);
#endif
if (allocation_size && (allocation_size > file_len)) {
fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size);
if (fsp->is_directory) {
close_file(fsp,ERROR_CLOSE);
/* Can't set allocation size on a directory. */
reply_nterror(req, NT_STATUS_ACCESS_DENIED);
return;
}
if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) {
close_file(fsp,ERROR_CLOSE);
reply_nterror(req, NT_STATUS_DISK_FULL);
return;
}
} else {
fsp->initial_allocation_size = smb_roundup(fsp->conn, (SMB_BIG_UINT)file_len);
}
}
/*
* If the caller set the extended oplock request bit
* and we granted one (by whatever means) - set the
* correct bit for extended oplock reply.
*/
if (oplock_request && lp_fake_oplocks(SNUM(conn))) {
extended_oplock_granted = True;
}
if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
extended_oplock_granted = True;
}
/* Realloc the size of parameters and data we will return */
if (flags & EXTENDED_RESPONSE_REQUIRED) {
/* Extended response is 32 more byyes. */
param_len = 101;
} else {
param_len = 69;
}
params = nttrans_realloc(ppparams, param_len);
if(params == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
p = params;
if (extended_oplock_granted) {
if (flags & REQUEST_BATCH_OPLOCK) {
SCVAL(p,0, BATCH_OPLOCK_RETURN);
} else {
SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN);
}
} else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
SCVAL(p,0, LEVEL_II_OPLOCK_RETURN);
} else {
SCVAL(p,0,NO_OPLOCK_RETURN);
}
p += 2;
SSVAL(p,0,fsp->fnum);
p += 2;
if ((create_disposition == FILE_SUPERSEDE) && (info == FILE_WAS_OVERWRITTEN)) {
SIVAL(p,0,FILE_WAS_SUPERSEDED);
} else {
SIVAL(p,0,info);
}
p += 8;
/* Create time. */
c_timespec = get_create_timespec(&sbuf,lp_fake_dir_create_times(SNUM(conn)));
a_timespec = get_atimespec(&sbuf);
m_timespec = get_mtimespec(&sbuf);
if (lp_dos_filetime_resolution(SNUM(conn))) {
dos_filetime_timespec(&c_timespec);
dos_filetime_timespec(&a_timespec);
dos_filetime_timespec(&m_timespec);
}
put_long_date_timespec(p, c_timespec); /* create time. */
p += 8;
put_long_date_timespec(p, a_timespec); /* access time */
p += 8;
put_long_date_timespec(p, m_timespec); /* write time */
p += 8;
put_long_date_timespec(p, m_timespec); /* change time */
p += 8;
SIVAL(p,0,fattr); /* File Attributes. */
p += 4;
SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf));
p += 8;
SOFF_T(p,0,file_len);
p += 8;
if (flags & EXTENDED_RESPONSE_REQUIRED) {
SSVAL(p,2,0x7);
}
p += 4;
SCVAL(p,0,fsp->is_directory ? 1 : 0);
if (flags & EXTENDED_RESPONSE_REQUIRED) {
uint32 perms = 0;
p += 25;
if (fsp->is_directory || can_write_to_file(conn, fname, &sbuf)) {
perms = FILE_GENERIC_ALL;
} else {
perms = FILE_GENERIC_READ|FILE_EXECUTE;
}
SIVAL(p,0,perms);
}
DEBUG(5,("call_nt_transact_create: open name = %s\n", fname));
/* Send the required number of replies */
send_nt_replies(req, NT_STATUS_OK, params, param_len, *ppdata, 0);
return;
}
/****************************************************************************
Reply to a NT CANCEL request.
conn POINTER CAN BE NULL HERE !
****************************************************************************/
void reply_ntcancel(connection_struct *conn, struct smb_request *req)
{
/*
* Go through and cancel any pending change notifies.
*/
START_PROFILE(SMBntcancel);
remove_pending_change_notify_requests_by_mid(req->mid);
remove_pending_lock_requests_by_mid(req->mid);
srv_cancel_sign_response(req->mid);
DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid));
END_PROFILE(SMBntcancel);
return;
}
/****************************************************************************
Copy a file.
****************************************************************************/
static NTSTATUS copy_internals(connection_struct *conn,
struct smb_request *req,
char *oldname, char *newname, uint32 attrs)
{
SMB_STRUCT_STAT sbuf1, sbuf2;
pstring last_component_oldname;
pstring last_component_newname;
files_struct *fsp1,*fsp2;
uint32 fattr;
int info;
SMB_OFF_T ret=-1;
NTSTATUS status = NT_STATUS_OK;
ZERO_STRUCT(sbuf1);
ZERO_STRUCT(sbuf2);
if (!CAN_WRITE(conn)) {
return NT_STATUS_MEDIA_WRITE_PROTECTED;
}
status = unix_convert(conn, oldname, False, last_component_oldname, &sbuf1);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = check_name(conn, oldname);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* Source must already exist. */
if (!VALID_STAT(sbuf1)) {
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
/* Ensure attributes match. */
fattr = dos_mode(conn,oldname,&sbuf1);
if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
return NT_STATUS_NO_SUCH_FILE;
}
status = unix_convert(conn, newname, False, last_component_newname, &sbuf2);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = check_name(conn, newname);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* Disallow if newname already exists. */
if (VALID_STAT(sbuf2)) {
return NT_STATUS_OBJECT_NAME_COLLISION;
}
/* No links from a directory. */
if (S_ISDIR(sbuf1.st_mode)) {
return NT_STATUS_FILE_IS_A_DIRECTORY;
}
/* Ensure this is within the share. */
status = check_reduced_name(conn, oldname);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
DEBUG(10,("copy_internals: doing file copy %s to %s\n", oldname, newname));
status = open_file_ntcreate(conn, req, oldname, &sbuf1,
FILE_READ_DATA, /* Read-only. */
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
FILE_OPEN,
0, /* No create options. */
FILE_ATTRIBUTE_NORMAL,
NO_OPLOCK,
&info, &fsp1);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = open_file_ntcreate(conn, req, newname, &sbuf2,
FILE_WRITE_DATA, /* Read-only. */
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
FILE_CREATE,
0, /* No create options. */
fattr,
NO_OPLOCK,
&info, &fsp2);
if (!NT_STATUS_IS_OK(status)) {
close_file(fsp1,ERROR_CLOSE);
return status;
}
if (sbuf1.st_size) {
ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size);
}
/*
* As we are opening fsp1 read-only we only expect
* an error on close on fsp2 if we are out of space.
* Thus we don't look at the error return from the
* close of fsp1.
*/
close_file(fsp1,NORMAL_CLOSE);
/* Ensure the modtime is set correctly on the destination file. */
fsp_set_pending_modtime(fsp2, get_mtimespec(&sbuf1));
status = close_file(fsp2,NORMAL_CLOSE);
/* Grrr. We have to do this as open_file_ntcreate adds aARCH when it
creates the file. This isn't the correct thing to do in the copy
case. JRA */
file_set_dosmode(conn, newname, fattr, &sbuf2,
parent_dirname(newname));
if (ret < (SMB_OFF_T)sbuf1.st_size) {
return NT_STATUS_DISK_FULL;
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3,("copy_internals: Error %s copy file %s to %s\n",
nt_errstr(status), oldname, newname));
}
return status;
}
/****************************************************************************
Reply to a NT rename request.
****************************************************************************/
void reply_ntrename(connection_struct *conn, struct smb_request *req)
{
pstring oldname;
pstring newname;
char *p;
NTSTATUS status;
BOOL src_has_wcard = False;
BOOL dest_has_wcard = False;
uint32 attrs;
uint16 rename_type;
START_PROFILE(SMBntrename);
if (req->wct < 4) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBntrename);
return;
}
attrs = SVAL(req->inbuf,smb_vwv0);
rename_type = SVAL(req->inbuf,smb_vwv1);
p = smb_buf(req->inbuf) + 1;
p += srvstr_get_path_wcard((char *)req->inbuf, req->flags2, oldname, p,
sizeof(oldname), 0, STR_TERMINATE, &status,
&src_has_wcard);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
END_PROFILE(SMBntrename);
return;
}
if( is_ntfs_stream_name(oldname)) {
/* Can't rename a stream. */
reply_nterror(req, NT_STATUS_ACCESS_DENIED);
END_PROFILE(SMBntrename);
return;
}
if (ms_has_wild(oldname)) {
reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
END_PROFILE(SMBntrename);
return;
}
p++;
p += srvstr_get_path_wcard((char *)req->inbuf, req->flags2, newname, p,
sizeof(newname), 0, STR_TERMINATE, &status,
&dest_has_wcard);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
END_PROFILE(SMBntrename);
return;
}
status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
oldname);
if (!NT_STATUS_IS_OK(status)) {
if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
ERRSRV, ERRbadpath);
END_PROFILE(SMBntrename);
return;
}
reply_nterror(req, status);
END_PROFILE(SMBntrename);
return;
}
status = resolve_dfspath(conn, req->flags2 & FLAGS2_DFS_PATHNAMES,
newname);
if (!NT_STATUS_IS_OK(status)) {
if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) {
reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
ERRSRV, ERRbadpath);
END_PROFILE(SMBntrename);
return;
}
reply_nterror(req, status);
END_PROFILE(SMBntrename);
return;
}
DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
switch(rename_type) {
case RENAME_FLAG_RENAME:
status = rename_internals(conn, req, oldname, newname,
attrs, False, src_has_wcard,
dest_has_wcard);
break;
case RENAME_FLAG_HARD_LINK:
if (src_has_wcard || dest_has_wcard) {
/* No wildcards. */
status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
} else {
status = hardlink_internals(conn, oldname, newname);
}
break;
case RENAME_FLAG_COPY:
if (src_has_wcard || dest_has_wcard) {
/* No wildcards. */
status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
} else {
status = copy_internals(conn, req, oldname,
newname, attrs);
}
break;
case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
status = NT_STATUS_INVALID_PARAMETER;
break;
default:
status = NT_STATUS_ACCESS_DENIED; /* Default error. */
break;
}
if (!NT_STATUS_IS_OK(status)) {
if (open_was_deferred(req->mid)) {
/* We have re-scheduled this call. */
END_PROFILE(SMBntrename);
return;
}
reply_nterror(req, status);
END_PROFILE(SMBntrename);
return;
}
reply_outbuf(req, 0, 0);
END_PROFILE(SMBntrename);
return;
}
/****************************************************************************
Reply to a notify change - queue the request and
don't allow a directory to be opened.
****************************************************************************/
static void call_nt_transact_notify_change(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup,
uint32 setup_count,
char **ppparams,
uint32 parameter_count,
char **ppdata, uint32 data_count,
uint32 max_data_count,
uint32 max_param_count)
{
uint16 *setup = *ppsetup;
files_struct *fsp;
uint32 filter;
NTSTATUS status;
BOOL recursive;
if(setup_count < 6) {
reply_doserror(req, ERRDOS, ERRbadfunc);
return;
}
fsp = file_fsp(SVAL(setup,4));
filter = IVAL(setup, 0);
recursive = (SVAL(setup, 6) != 0) ? True : False;
DEBUG(3,("call_nt_transact_notify_change\n"));
if(!fsp) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
{
char *filter_string;
if (!(filter_string = notify_filter_string(NULL, filter))) {
reply_nterror(req,NT_STATUS_NO_MEMORY);
return;
}
DEBUG(3,("call_nt_transact_notify_change: notify change "
"called on %s, filter = %s, recursive = %d\n",
fsp->fsp_name, filter_string, recursive));
TALLOC_FREE(filter_string);
}
if((!fsp->is_directory) || (conn != fsp->conn)) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
if (fsp->notify == NULL) {
status = change_notify_create(fsp, filter, recursive);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("change_notify_create returned %s\n",
nt_errstr(status)));
reply_nterror(req, status);
return;
}
}
if (fsp->notify->num_changes != 0) {
/*
* We've got changes pending, respond immediately
*/
/*
* TODO: write a torture test to check the filtering behaviour
* here.
*/
change_notify_reply(req->inbuf, max_param_count, fsp->notify);
/*
* change_notify_reply() above has independently sent its
* results
*/
return;
}
/*
* No changes pending, queue the request
*/
status = change_notify_add_request(req->inbuf, max_param_count, filter,
recursive, fsp);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
}
return;
}
/****************************************************************************
Reply to an NT transact rename command.
****************************************************************************/
static void call_nt_transact_rename(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup, uint32 setup_count,
char **ppparams, uint32 parameter_count,
char **ppdata, uint32 data_count,
uint32 max_data_count)
{
char *params = *ppparams;
pstring new_name;
files_struct *fsp = NULL;
BOOL replace_if_exists = False;
BOOL dest_has_wcard = False;
NTSTATUS status;
if(parameter_count < 5) {
reply_doserror(req, ERRDOS, ERRbadfunc);
return;
}
fsp = file_fsp(SVAL(params, 0));
replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False;
if (!check_fsp(conn, req, fsp, &current_user)) {
return;
}
srvstr_get_path_wcard(params, req->flags2, new_name, params+4,
sizeof(new_name), parameter_count - 4,
STR_TERMINATE, &status, &dest_has_wcard);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
status = rename_internals(conn, req, fsp->fsp_name,
new_name, 0, replace_if_exists, False, dest_has_wcard);
if (!NT_STATUS_IS_OK(status)) {
if (open_was_deferred(req->mid)) {
/* We have re-scheduled this call. */
return;
}
reply_nterror(req, status);
return;
}
/*
* Rename was successful.
*/
send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
fsp->fsp_name, new_name));
return;
}
/******************************************************************************
Fake up a completely empty SD.
*******************************************************************************/
static size_t get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd)
{
size_t sd_size;
*ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size);
if(!*ppsd) {
DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n"));
sd_size = 0;
}
return sd_size;
}
/****************************************************************************
Reply to query a security descriptor.
****************************************************************************/
static void call_nt_transact_query_security_desc(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup,
uint32 setup_count,
char **ppparams,
uint32 parameter_count,
char **ppdata,
uint32 data_count,
uint32 max_data_count)
{
char *params = *ppparams;
char *data = *ppdata;
prs_struct pd;
SEC_DESC *psd = NULL;
size_t sd_size;
uint32 security_info_wanted;
TALLOC_CTX *mem_ctx;
files_struct *fsp = NULL;
if(parameter_count < 8) {
reply_doserror(req, ERRDOS, ERRbadfunc);
return;
}
fsp = file_fsp(SVAL(params,0));
if(!fsp) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
security_info_wanted = IVAL(params,4);
DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name,
(unsigned int)security_info_wanted ));
params = nttrans_realloc(ppparams, 4);
if(params == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) {
DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n"));
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
/*
* Get the permissions to return.
*/
if (!lp_nt_acl_support(SNUM(conn))) {
sd_size = get_null_nt_acl(mem_ctx, &psd);
} else {
sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fh->fd, security_info_wanted, &psd);
}
if (sd_size == 0) {
talloc_destroy(mem_ctx);
reply_unixerror(req, ERRDOS, ERRnoaccess);
return;
}
DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
SIVAL(params,0,(uint32)sd_size);
if(max_data_count < sd_size) {
send_nt_replies(req, NT_STATUS_BUFFER_TOO_SMALL,
params, 4, *ppdata, 0);
talloc_destroy(mem_ctx);
return;
}
/*
* Allocate the data we will point this at.
*/
data = nttrans_realloc(ppdata, sd_size);
if(data == NULL) {
talloc_destroy(mem_ctx);
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
/*
* Init the parse struct we will marshall into.
*/
prs_init(&pd, 0, mem_ctx, MARSHALL);
/*
* Setup the prs_struct to point at the memory we just
* allocated.
*/
prs_give_memory( &pd, data, (uint32)sd_size, False);
/*
* Finally, linearize into the outgoing buffer.
*/
if(!sec_io_desc( "sd data", &psd, &pd, 1)) {
DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \
security descriptor.\n"));
/*
* Return access denied for want of a better error message..
*/
talloc_destroy(mem_ctx);
reply_unixerror(req, ERRDOS, ERRnoaccess);
return;
}
/*
* Now we can delete the security descriptor.
*/
talloc_destroy(mem_ctx);
send_nt_replies(req, NT_STATUS_OK, params, 4, data, (int)sd_size);
return;
}
/****************************************************************************
Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs.
****************************************************************************/
static void call_nt_transact_set_security_desc(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup,
uint32 setup_count,
char **ppparams,
uint32 parameter_count,
char **ppdata,
uint32 data_count,
uint32 max_data_count)
{
char *params= *ppparams;
char *data = *ppdata;
files_struct *fsp = NULL;
uint32 security_info_sent = 0;
NTSTATUS nt_status;
if(parameter_count < 8) {
reply_doserror(req, ERRDOS, ERRbadfunc);
return;
}
if((fsp = file_fsp(SVAL(params,0))) == NULL) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
if(!lp_nt_acl_support(SNUM(conn))) {
goto done;
}
security_info_sent = IVAL(params,4);
DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name,
(unsigned int)security_info_sent ));
if (data_count == 0) {
reply_doserror(req, ERRDOS, ERRnoaccess);
return;
}
if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, data_count, security_info_sent))) {
reply_nterror(req, nt_status);
return;
}
done:
send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
return;
}
/****************************************************************************
Reply to NT IOCTL
****************************************************************************/
static void call_nt_transact_ioctl(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup, uint32 setup_count,
char **ppparams, uint32 parameter_count,
char **ppdata, uint32 data_count,
uint32 max_data_count)
{
uint32 function;
uint16 fidnum;
files_struct *fsp;
uint8 isFSctl;
uint8 compfilter;
static BOOL logged_message;
char *pdata = *ppdata;
if (setup_count != 8) {
DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count));
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
return;
}
function = IVAL(*ppsetup, 0);
fidnum = SVAL(*ppsetup, 4);
isFSctl = CVAL(*ppsetup, 6);
compfilter = CVAL(*ppsetup, 7);
DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n",
function, fidnum, isFSctl, compfilter));
fsp=file_fsp(fidnum);
/* this check is done in each implemented function case for now
because I don't want to break anything... --metze
FSP_BELONGS_CONN(fsp,conn);*/
switch (function) {
case FSCTL_SET_SPARSE:
/* pretend this succeeded - tho strictly we should
mark the file sparse (if the local fs supports it)
so we can know if we need to pre-allocate or not */
DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum));
send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
return;
case FSCTL_CREATE_OR_GET_OBJECT_ID:
{
unsigned char objid[16];
/* This should return the object-id on this file.
* I think I'll make this be the inode+dev. JRA.
*/
DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum));
if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
return;
}
data_count = 64;
pdata = nttrans_realloc(ppdata, data_count);
if (pdata == NULL) {
reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
push_file_id_16(pdata, &fsp->file_id);
memcpy(pdata+16,create_volume_objectid(conn,objid),16);
push_file_id_16(pdata+32, &fsp->file_id);
send_nt_replies(req, NT_STATUS_OK, NULL, 0,
pdata, data_count);
return;
}
case FSCTL_GET_REPARSE_POINT:
/* pretend this fail - my winXP does it like this
* --metze
*/
DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
return;
case FSCTL_SET_REPARSE_POINT:
/* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case.
* --metze
*/
DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum));
reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT);
return;
case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/
{
/*
* This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
* and return their volume names. If max_data_count is 16, then it is just
* asking for the number of volumes and length of the combined names.
*
* pdata is the data allocated by our caller, but that uses
* total_data_count (which is 0 in our case) rather than max_data_count.
* Allocate the correct amount and return the pointer to let
* it be deallocated when we return.
*/
SHADOW_COPY_DATA *shadow_data = NULL;
TALLOC_CTX *shadow_mem_ctx = NULL;
BOOL labels = False;
uint32 labels_data_count = 0;
uint32 i;
char *cur_pdata;
if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
return;
}
if (max_data_count < 16) {
DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n",
max_data_count));
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
if (max_data_count > 16) {
labels = True;
}
shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA");
if (shadow_mem_ctx == NULL) {
DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n"));
reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA);
if (shadow_data == NULL) {
DEBUG(0,("TALLOC_ZERO() failed!\n"));
talloc_destroy(shadow_mem_ctx);
reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
shadow_data->mem_ctx = shadow_mem_ctx;
/*
* Call the VFS routine to actually do the work.
*/
if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) {
talloc_destroy(shadow_data->mem_ctx);
if (errno == ENOSYS) {
DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n",
conn->connectpath));
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
return;
} else {
DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n",
conn->connectpath));
reply_nterror(req, NT_STATUS_UNSUCCESSFUL);
return;
}
}
labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2;
if (!labels) {
data_count = 16;
} else {
data_count = 12+labels_data_count+4;
}
if (max_data_count<data_count) {
DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n",
max_data_count,data_count));
talloc_destroy(shadow_data->mem_ctx);
reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
return;
}
pdata = nttrans_realloc(ppdata, data_count);
if (pdata == NULL) {
talloc_destroy(shadow_data->mem_ctx);
reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
cur_pdata = pdata;
/* num_volumes 4 bytes */
SIVAL(pdata,0,shadow_data->num_volumes);
if (labels) {
/* num_labels 4 bytes */
SIVAL(pdata,4,shadow_data->num_volumes);
}
/* needed_data_count 4 bytes */
SIVAL(pdata,8,labels_data_count);
cur_pdata+=12;
DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n",
shadow_data->num_volumes,fsp->fsp_name));
if (labels && shadow_data->labels) {
for (i=0;i<shadow_data->num_volumes;i++) {
srvstr_push(pdata, req->flags2,
cur_pdata, shadow_data->labels[i],
2*sizeof(SHADOW_COPY_LABEL),
STR_UNICODE|STR_TERMINATE);
cur_pdata+=2*sizeof(SHADOW_COPY_LABEL);
DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i]));
}
}
talloc_destroy(shadow_data->mem_ctx);
send_nt_replies(req, NT_STATUS_OK, NULL, 0,
pdata, data_count);
return;
}
case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */
{
/* pretend this succeeded -
*
* we have to send back a list with all files owned by this SID
*
* but I have to check that --metze
*/
DOM_SID sid;
uid_t uid;
size_t sid_len = MIN(data_count-4,SID_MAX_SIZE);
DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum));
if (!fsp_belongs_conn(conn, req, fsp, &current_user)) {
return;
}
/* unknown 4 bytes: this is not the length of the sid :-( */
/*unknown = IVAL(pdata,0);*/
sid_parse(pdata+4,sid_len,&sid);
DEBUGADD(10,("for SID: %s\n",sid_string_static(&sid)));
if (!sid_to_uid(&sid, &uid)) {
DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
sid_string_static(&sid),(unsigned long)sid_len));
uid = (-1);
}
/* we can take a look at the find source :-)
*
* find ./ -uid $uid -name '*' is what we need here
*
*
* and send 4bytes len and then NULL terminated unicode strings
* for each file
*
* but I don't know how to deal with the paged results
* (maybe we can hang the result anywhere in the fsp struct)
*
* we don't send all files at once
* and at the next we should *not* start from the beginning,
* so we have to cache the result
*
* --metze
*/
/* this works for now... */
send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0);
return;
}
default:
if (!logged_message) {
logged_message = True; /* Only print this once... */
DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n",
function));
}
}
reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
}
#ifdef HAVE_SYS_QUOTAS
/****************************************************************************
Reply to get user quota
****************************************************************************/
static void call_nt_transact_get_user_quota(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup,
uint32 setup_count,
char **ppparams,
uint32 parameter_count,
char **ppdata,
uint32 data_count,
uint32 max_data_count)
{
NTSTATUS nt_status = NT_STATUS_OK;
char *params = *ppparams;
char *pdata = *ppdata;
char *entry;
int data_len=0,param_len=0;
int qt_len=0;
int entry_len = 0;
files_struct *fsp = NULL;
uint16 level = 0;
size_t sid_len;
DOM_SID sid;
BOOL start_enum = True;
SMB_NTQUOTA_STRUCT qt;
SMB_NTQUOTA_LIST *tmp_list;
SMB_NTQUOTA_HANDLE *qt_handle = NULL;
ZERO_STRUCT(qt);
/* access check */
if (current_user.ut.uid != 0) {
DEBUG(1,("get_user_quota: access_denied service [%s] user [%s]\n",
lp_servicename(SNUM(conn)),conn->user));
reply_doserror(req, ERRDOS, ERRnoaccess);
return;
}
/*
* Ensure minimum number of parameters sent.
*/
if (parameter_count < 4) {
DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count));
reply_doserror(req, ERRDOS, ERRinvalidparam);
return;
}
/* maybe we can check the quota_fnum */
fsp = file_fsp(SVAL(params,0));
if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
reply_nterror(req, NT_STATUS_INVALID_HANDLE);
return;
}
/* the NULL pointer checking for fsp->fake_file_handle->pd
* is done by CHECK_NTQUOTA_HANDLE_OK()
*/
qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->pd;
level = SVAL(params,2);
/* unknown 12 bytes leading in params */
switch (level) {
case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE:
/* seems that we should continue with the enum here --metze */
if (qt_handle->quota_list!=NULL &&
qt_handle->tmp_list==NULL) {
/* free the list */
free_ntquota_list(&(qt_handle->quota_list));
/* Realloc the size of parameters and data we will return */
param_len = 4;
params = nttrans_realloc(ppparams, param_len);
if(params == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
data_len = 0;
SIVAL(params,0,data_len);
break;
}
start_enum = False;
case TRANSACT_GET_USER_QUOTA_LIST_START:
if (qt_handle->quota_list==NULL &&
qt_handle->tmp_list==NULL) {
start_enum = True;
}
if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) {
reply_doserror(req, ERRSRV, ERRerror);
return;
}
/* Realloc the size of parameters and data we will return */
param_len = 4;
params = nttrans_realloc(ppparams, param_len);
if(params == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
/* we should not trust the value in max_data_count*/
max_data_count = MIN(max_data_count,2048);
pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/
if(pdata == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
entry = pdata;
/* set params Size of returned Quota Data 4 bytes*/
/* but set it later when we know it */
/* for each entry push the data */
if (start_enum) {
qt_handle->tmp_list = qt_handle->quota_list;
}
tmp_list = qt_handle->tmp_list;
for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count));
tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) {
sid_len = sid_size(&tmp_list->quotas->sid);
entry_len = 40 + sid_len;
/* nextoffset entry 4 bytes */
SIVAL(entry,0,entry_len);
/* then the len of the SID 4 bytes */
SIVAL(entry,4,sid_len);
/* unknown data 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/
/* the used disk space 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
/* the soft quotas 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,24,tmp_list->quotas->softlim);
/* the hard quotas 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,32,tmp_list->quotas->hardlim);
/* and now the SID */
sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid);
}
qt_handle->tmp_list = tmp_list;
/* overwrite the offset of the last entry */
SIVAL(entry-entry_len,0,0);
data_len = 4+qt_len;
/* overwrite the params quota_data_len */
SIVAL(params,0,data_len);
break;
case TRANSACT_GET_USER_QUOTA_FOR_SID:
/* unknown 4 bytes IVAL(pdata,0) */
if (data_count < 8) {
DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8));
reply_doserror(req, ERRDOS, ERRunknownlevel);
return;
}
sid_len = IVAL(pdata,4);
/* Ensure this is less than 1mb. */
if (sid_len > (1024*1024)) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
if (data_count < 8+sid_len) {
DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len)));
reply_doserror(req, ERRDOS, ERRunknownlevel);
return;
}
data_len = 4+40+sid_len;
if (max_data_count < data_len) {
DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n",
max_data_count, data_len));
param_len = 4;
SIVAL(params,0,data_len);
data_len = 0;
nt_status = NT_STATUS_BUFFER_TOO_SMALL;
break;
}
sid_parse(pdata+8,sid_len,&sid);
if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
ZERO_STRUCT(qt);
/*
* we have to return zero's in all fields
* instead of returning an error here
* --metze
*/
}
/* Realloc the size of parameters and data we will return */
param_len = 4;
params = nttrans_realloc(ppparams, param_len);
if(params == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
pdata = nttrans_realloc(ppdata, data_len);
if(pdata == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
entry = pdata;
/* set params Size of returned Quota Data 4 bytes*/
SIVAL(params,0,data_len);
/* nextoffset entry 4 bytes */
SIVAL(entry,0,0);
/* then the len of the SID 4 bytes */
SIVAL(entry,4,sid_len);
/* unknown data 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/
/* the used disk space 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,16,qt.usedspace);
/* the soft quotas 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,24,qt.softlim);
/* the hard quotas 8 bytes SMB_BIG_UINT */
SBIG_UINT(entry,32,qt.hardlim);
/* and now the SID */
sid_linearize(entry+40, sid_len, &sid);
break;
default:
DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level));
reply_doserror(req, ERRSRV, ERRerror);
return;
break;
}
send_nt_replies(req, nt_status, params, param_len,
pdata, data_len);
}
/****************************************************************************
Reply to set user quota
****************************************************************************/
static void call_nt_transact_set_user_quota(connection_struct *conn,
struct smb_request *req,
uint16 **ppsetup,
uint32 setup_count,
char **ppparams,
uint32 parameter_count,
char **ppdata,
uint32 data_count,
uint32 max_data_count)
{
char *params = *ppparams;
char *pdata = *ppdata;
int data_len=0,param_len=0;
SMB_NTQUOTA_STRUCT qt;
size_t sid_len;
DOM_SID sid;
files_struct *fsp = NULL;
ZERO_STRUCT(qt);
/* access check */
if (current_user.ut.uid != 0) {
DEBUG(1,("set_user_quota: access_denied service [%s] user [%s]\n",
lp_servicename(SNUM(conn)),conn->user));
reply_doserror(req, ERRDOS, ERRnoaccess);
return;
}
/*
* Ensure minimum number of parameters sent.
*/
if (parameter_count < 2) {
DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count));
reply_doserror(req, ERRDOS, ERRinvalidparam);
return;
}
/* maybe we can check the quota_fnum */
fsp = file_fsp(SVAL(params,0));
if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) {
DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n"));
reply_nterror(req, NT_STATUS_INVALID_HANDLE);
return;
}
if (data_count < 40) {
DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40));
reply_doserror(req, ERRDOS, ERRunknownlevel);
return;
}
/* offset to next quota record.
* 4 bytes IVAL(pdata,0)
* unused here...
*/
/* sid len */
sid_len = IVAL(pdata,4);
if (data_count < 40+sid_len) {
DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len));
reply_doserror(req, ERRDOS, ERRunknownlevel);
return;
}
/* unknown 8 bytes in pdata
* maybe its the change time in NTTIME
*/
/* the used space 8 bytes (SMB_BIG_UINT)*/
qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16);
#ifdef LARGE_SMB_OFF_T
qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32);
#else /* LARGE_SMB_OFF_T */
if ((IVAL(pdata,20) != 0)&&
((qt.usedspace != 0xFFFFFFFF)||
(IVAL(pdata,20)!=0xFFFFFFFF))) {
/* more than 32 bits? */
reply_doserror(req, ERRDOS, ERRunknownlevel);
return;
}
#endif /* LARGE_SMB_OFF_T */
/* the soft quotas 8 bytes (SMB_BIG_UINT)*/
qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24);
#ifdef LARGE_SMB_OFF_T
qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32);
#else /* LARGE_SMB_OFF_T */
if ((IVAL(pdata,28) != 0)&&
((qt.softlim != 0xFFFFFFFF)||
(IVAL(pdata,28)!=0xFFFFFFFF))) {
/* more than 32 bits? */
reply_doserror(req, ERRDOS, ERRunknownlevel);
return;
}
#endif /* LARGE_SMB_OFF_T */
/* the hard quotas 8 bytes (SMB_BIG_UINT)*/
qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32);
#ifdef LARGE_SMB_OFF_T
qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32);
#else /* LARGE_SMB_OFF_T */
if ((IVAL(pdata,36) != 0)&&
((qt.hardlim != 0xFFFFFFFF)||
(IVAL(pdata,36)!=0xFFFFFFFF))) {
/* more than 32 bits? */
reply_doserror(req, ERRDOS, ERRunknownlevel);
return;
}
#endif /* LARGE_SMB_OFF_T */
sid_parse(pdata+40,sid_len,&sid);
DEBUGADD(8,("SID: %s\n",sid_string_static(&sid)));
/* 44 unknown bytes left... */
if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) {
reply_doserror(req, ERRSRV, ERRerror);
return;
}
send_nt_replies(req, NT_STATUS_OK, params, param_len,
pdata, data_len);
}
#endif /* HAVE_SYS_QUOTAS */
static void handle_nttrans(connection_struct *conn,
struct trans_state *state,
struct smb_request *req)
{
if (Protocol >= PROTOCOL_NT1) {
req->flags2 |= 0x40; /* IS_LONG_NAME */
SSVAL(req->inbuf,smb_flg2,req->flags2);
}
/* Now we must call the relevant NT_TRANS function */
switch(state->call) {
case NT_TRANSACT_CREATE:
{
START_PROFILE(NT_transact_create);
call_nt_transact_create(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return);
END_PROFILE(NT_transact_create);
break;
}
case NT_TRANSACT_IOCTL:
{
START_PROFILE(NT_transact_ioctl);
call_nt_transact_ioctl(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return);
END_PROFILE(NT_transact_ioctl);
break;
}
case NT_TRANSACT_SET_SECURITY_DESC:
{
START_PROFILE(NT_transact_set_security_desc);
call_nt_transact_set_security_desc(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return);
END_PROFILE(NT_transact_set_security_desc);
break;
}
case NT_TRANSACT_NOTIFY_CHANGE:
{
START_PROFILE(NT_transact_notify_change);
call_nt_transact_notify_change(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return,
state->max_param_return);
END_PROFILE(NT_transact_notify_change);
break;
}
case NT_TRANSACT_RENAME:
{
START_PROFILE(NT_transact_rename);
call_nt_transact_rename(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return);
END_PROFILE(NT_transact_rename);
break;
}
case NT_TRANSACT_QUERY_SECURITY_DESC:
{
START_PROFILE(NT_transact_query_security_desc);
call_nt_transact_query_security_desc(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return);
END_PROFILE(NT_transact_query_security_desc);
break;
}
#ifdef HAVE_SYS_QUOTAS
case NT_TRANSACT_GET_USER_QUOTA:
{
START_PROFILE(NT_transact_get_user_quota);
call_nt_transact_get_user_quota(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return);
END_PROFILE(NT_transact_get_user_quota);
break;
}
case NT_TRANSACT_SET_USER_QUOTA:
{
START_PROFILE(NT_transact_set_user_quota);
call_nt_transact_set_user_quota(
conn, req,
&state->setup, state->setup_count,
&state->param, state->total_param,
&state->data, state->total_data,
state->max_data_return);
END_PROFILE(NT_transact_set_user_quota);
break;
}
#endif /* HAVE_SYS_QUOTAS */
default:
/* Error in request */
DEBUG(0,("handle_nttrans: Unknown request %d in "
"nttrans call\n", state->call));
reply_doserror(req, ERRSRV, ERRerror);
return;
}
return;
}
/****************************************************************************
Reply to a SMBNTtrans.
****************************************************************************/
void reply_nttrans(connection_struct *conn, struct smb_request *req)
{
uint32 pscnt;
uint32 psoff;
uint32 dscnt;
uint32 dsoff;
uint16 function_code;
NTSTATUS result;
struct trans_state *state;
int size;
START_PROFILE(SMBnttrans);
if (req->wct < 19) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBnttrans);
return;
}
size = smb_len(req->inbuf) + 4;
pscnt = IVAL(req->inbuf,smb_nt_ParameterCount);
psoff = IVAL(req->inbuf,smb_nt_ParameterOffset);
dscnt = IVAL(req->inbuf,smb_nt_DataCount);
dsoff = IVAL(req->inbuf,smb_nt_DataOffset);
function_code = SVAL(req->inbuf, smb_nt_Function);
if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) {
reply_doserror(req, ERRSRV, ERRaccess);
END_PROFILE(SMBnttrans);
return;
}
result = allow_new_trans(conn->pending_trans, req->mid);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result)));
reply_nterror(req, result);
END_PROFILE(SMBnttrans);
return;
}
if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) {
reply_doserror(req, ERRSRV, ERRaccess);
END_PROFILE(SMBnttrans);
return;
}
state->cmd = SMBnttrans;
state->mid = req->mid;
state->vuid = req->vuid;
state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount);
state->data = NULL;
state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount);
state->param = NULL;
state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount);
state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount);
/* setup count is in *words* */
state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount);
state->setup = NULL;
state->call = function_code;
/*
* All nttrans messages we handle have smb_wct == 19 +
* state->setup_count. Ensure this is so as a sanity check.
*/
if(req->wct != 19 + (state->setup_count/2)) {
DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n",
req->wct, 19 + (state->setup_count/2)));
goto bad_param;
}
/* Don't allow more than 128mb for each value. */
if ((state->total_data > (1024*1024*128)) ||
(state->total_param > (1024*1024*128))) {
reply_doserror(req, ERRDOS, ERRnomem);
END_PROFILE(SMBnttrans);
return;
}
if ((dscnt > state->total_data) || (pscnt > state->total_param))
goto bad_param;
if (state->total_data) {
/* Can't use talloc here, the core routines do realloc on the
* params and data. */
if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) {
DEBUG(0,("reply_nttrans: data malloc fail for %u "
"bytes !\n", (unsigned int)state->total_data));
TALLOC_FREE(state);
reply_doserror(req, ERRDOS, ERRnomem);
END_PROFILE(SMBnttrans);
return;
}
if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt))
goto bad_param;
if ((smb_base(req->inbuf)+dsoff+dscnt
> (char *)req->inbuf + size) ||
(smb_base(req->inbuf)+dsoff+dscnt < smb_base(req->inbuf)))
goto bad_param;
memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
}
if (state->total_param) {
/* Can't use talloc here, the core routines do realloc on the
* params and data. */
if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) {
DEBUG(0,("reply_nttrans: param malloc fail for %u "
"bytes !\n", (unsigned int)state->total_param));
SAFE_FREE(state->data);
TALLOC_FREE(state);
reply_doserror(req, ERRDOS, ERRnomem);
END_PROFILE(SMBnttrans);
return;
}
if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt))
goto bad_param;
if ((smb_base(req->inbuf)+psoff+pscnt
> (char *)req->inbuf + size) ||
(smb_base(req->inbuf)+psoff+pscnt < smb_base(req->inbuf)))
goto bad_param;
memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
}
state->received_data = dscnt;
state->received_param = pscnt;
if(state->setup_count > 0) {
DEBUG(10,("reply_nttrans: state->setup_count = %d\n",
state->setup_count));
state->setup = (uint16 *)TALLOC(state, state->setup_count);
if (state->setup == NULL) {
DEBUG(0,("reply_nttrans : Out of memory\n"));
SAFE_FREE(state->data);
SAFE_FREE(state->param);
TALLOC_FREE(state);
reply_doserror(req, ERRDOS, ERRnomem);
END_PROFILE(SMBnttrans);
return;
}
if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) ||
(smb_nt_SetupStart + state->setup_count < state->setup_count)) {
goto bad_param;
}
if (smb_nt_SetupStart + state->setup_count > size) {
goto bad_param;
}
memcpy( state->setup, &req->inbuf[smb_nt_SetupStart],
state->setup_count);
dump_data(10, (uint8 *)state->setup, state->setup_count);
}
if ((state->received_data == state->total_data) &&
(state->received_param == state->total_param)) {
handle_nttrans(conn, state, req);
SAFE_FREE(state->param);
SAFE_FREE(state->data);
TALLOC_FREE(state);
END_PROFILE(SMBnttrans);
return;
}
DLIST_ADD(conn->pending_trans, state);
/* We need to send an interim response then receive the rest
of the parameter/data bytes */
reply_outbuf(req, 0, 0);
show_msg((char *)req->outbuf);
END_PROFILE(SMBnttrans);
return;
bad_param:
DEBUG(0,("reply_nttrans: invalid trans parameters\n"));
SAFE_FREE(state->data);
SAFE_FREE(state->param);
TALLOC_FREE(state);
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBnttrans);
return;
}
/****************************************************************************
Reply to a SMBnttranss
****************************************************************************/
void reply_nttranss(connection_struct *conn, struct smb_request *req)
{
unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
struct trans_state *state;
int size;
START_PROFILE(SMBnttranss);
show_msg((char *)req->inbuf);
if (req->wct < 18) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBnttranss);
return;
}
for (state = conn->pending_trans; state != NULL;
state = state->next) {
if (state->mid == req->mid) {
break;
}
}
if ((state == NULL) || (state->cmd != SMBnttrans)) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBnttranss);
return;
}
/* Revise state->total_param and state->total_data in case they have
changed downwards */
if (IVAL(req->inbuf, smb_nts_TotalParameterCount)
< state->total_param) {
state->total_param = IVAL(req->inbuf,
smb_nts_TotalParameterCount);
}
if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) {
state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount);
}
size = smb_len(req->inbuf) + 4;
pcnt = IVAL(req->inbuf,smb_nts_ParameterCount);
poff = IVAL(req->inbuf, smb_nts_ParameterOffset);
pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement);
dcnt = IVAL(req->inbuf, smb_nts_DataCount);
ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement);
doff = IVAL(req->inbuf, smb_nts_DataOffset);
state->received_param += pcnt;
state->received_data += dcnt;
if ((state->received_data > state->total_data) ||
(state->received_param > state->total_param))
goto bad_param;
if (pcnt) {
if (pdisp+pcnt > state->total_param)
goto bad_param;
if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt))
goto bad_param;
if (pdisp > state->total_param)
goto bad_param;
if ((smb_base(req->inbuf) + poff + pcnt
> (char *)req->inbuf + size) ||
(smb_base(req->inbuf) + poff + pcnt
< smb_base(req->inbuf)))
goto bad_param;
if (state->param + pdisp < state->param)
goto bad_param;
memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,
pcnt);
}
if (dcnt) {
if (ddisp+dcnt > state->total_data)
goto bad_param;
if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt))
goto bad_param;
if (ddisp > state->total_data)
goto bad_param;
if ((smb_base(req->inbuf) + doff + dcnt
> (char *)req->inbuf + size) ||
(smb_base(req->inbuf) + doff + dcnt
< smb_base(req->inbuf)))
goto bad_param;
if (state->data + ddisp < state->data)
goto bad_param;
memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
dcnt);
}
if ((state->received_param < state->total_param) ||
(state->received_data < state->total_data)) {
END_PROFILE(SMBnttranss);
return;
}
/*
* construct_reply_common will copy smb_com from inbuf to
* outbuf. SMBnttranss is wrong here.
*/
SCVAL(req->inbuf,smb_com,SMBnttrans);
handle_nttrans(conn, state, req);
DLIST_REMOVE(conn->pending_trans, state);
SAFE_FREE(state->data);
SAFE_FREE(state->param);
TALLOC_FREE(state);
END_PROFILE(SMBnttranss);
return;
bad_param:
DEBUG(0,("reply_nttranss: invalid trans parameters\n"));
DLIST_REMOVE(conn->pending_trans, state);
SAFE_FREE(state->data);
SAFE_FREE(state->param);
TALLOC_FREE(state);
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBnttranss);
return;
}
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