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samba-mirror/source3/smbd/nttrans.c
Volker Lendecke 5302db6326 TALLOC_FREE happily lives with a NULL ptr. Tim, please check! 
Thanks,

Volker
2009-05-24 22:13:07 +02:00

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/*
Unix SMB/CIFS implementation.
SMB NT transaction handling
Copyright (C) Jeremy Allison 1994-2007
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"
#include "smbd/globals.h"
extern enum protocol_types Protocol;
extern const struct generic_mapping file_generic_mapping;
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(connection_struct *conn,
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);
if (useable_space < 0) {
char *msg = talloc_asprintf(
talloc_tos(),
"send_nt_replies failed sanity useable_space = %d!!!",
useable_space);
DEBUG(0, ("%s\n", msg));
exit_server_cleanly(msg);
}
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;
/*
* We can never send more than useable_space.
*/
total_sent_thistime = MIN(total_sent_thistime, useable_space);
reply_outbuf(req, 18,
total_sent_thistime + alignment_offset
+ data_alignment_offset);
/*
* We might have had SMBnttranss in req->inbuf, fix that.
*/
SCVAL(req->outbuf, smb_com, SMBnttrans);
/*
* 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 (!srv_send_smb(smbd_server_fd(),
(char *)req->outbuf,
true, req->seqnum+1,
IS_CONN_ENCRYPTED(conn),
&req->pcd)) {
exit_server_cleanly("send_nt_replies: srv_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));
exit_server_cleanly("send_nt_replies: internal error");
}
}
}
/****************************************************************************
Is it an NTFS stream name ?
An NTFS file name is <path>.<extention>:<stream name>:<stream type>
$DATA can be used as both a stream name and a stream type. A missing stream
name or type implies $DATA.
Both Windows stream names and POSIX files can contain the ':' character.
This function first checks for the existence of a colon in the last component
of the given name. If the name contains a colon we differentiate between a
stream and POSIX file by checking if the latter exists through a POSIX stat.
Function assumes we've already chdir() to the "root" directory of fname.
****************************************************************************/
bool is_ntfs_stream_name(const char *fname)
{
const char *lastcomp;
SMB_STRUCT_STAT sbuf;
/* If all pathnames are treated as POSIX we ignore streams. */
if (lp_posix_pathnames()) {
return false;
}
/* Find the last component of the name. */
if ((lastcomp = strrchr_m(fname, '/')) != NULL)
++lastcomp;
else
lastcomp = fname;
/* If there is no colon in the last component, it's not a stream. */
if (strchr_m(lastcomp, ':') == NULL)
return false;
/*
* If file already exists on disk, it's not a stream. The stat must
* bypass the vfs layer so streams modules don't intefere.
*/
if (sys_stat(fname, &sbuf) == 0) {
DEBUG(5, ("is_ntfs_stream_name: file %s contains a ':' but is "
"not a stream\n", fname));
return false;
}
return true;
}
/****************************************************************************
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)
{
files_struct *fsp;
NTSTATUS status;
DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname));
/* Strip \\ off the name. */
fname++;
status = open_np_file(req, fname, &fsp);
if (!NT_STATUS_IS_OK(status)) {
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
reply_nterror(req, status);
return;
}
*ppnum = fsp->fnum;
return;
}
/****************************************************************************
Reply to an NT create and X call for pipes.
****************************************************************************/
static void do_ntcreate_pipe_open(connection_struct *conn,
struct smb_request *req)
{
char *fname = NULL;
int pnum = -1;
char *p = NULL;
uint32 flags = IVAL(req->vwv+3, 1);
TALLOC_CTX *ctx = talloc_tos();
srvstr_pull_req_talloc(ctx, req, &fname, req->buf, STR_TERMINATE);
if (!fname) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
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(req);
}
/****************************************************************************
Reply to an NT create and X call.
****************************************************************************/
void reply_ntcreate_and_X(struct smb_request *req)
{
connection_struct *conn = req->conn;
char *fname = NULL;
uint32 flags;
uint32 access_mask;
uint32 file_attributes;
uint32 share_access;
uint32 create_disposition;
uint32 create_options;
uint16 root_dir_fid;
uint64_t allocation_size;
/* Breakout the oplock request bits so we can set the
reply bits separately. */
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;
NTSTATUS status;
int oplock_request;
uint8_t oplock_granted = NO_OPLOCK_RETURN;
TALLOC_CTX *ctx = talloc_tos();
START_PROFILE(SMBntcreateX);
SET_STAT_INVALID(sbuf);
if (req->wct < 24) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
flags = IVAL(req->vwv+3, 1);
access_mask = IVAL(req->vwv+7, 1);
file_attributes = IVAL(req->vwv+13, 1);
share_access = IVAL(req->vwv+15, 1);
create_disposition = IVAL(req->vwv+17, 1);
create_options = IVAL(req->vwv+19, 1);
root_dir_fid = (uint16)IVAL(req->vwv+5, 1);
allocation_size = (uint64_t)IVAL(req->vwv+9, 1);
#ifdef LARGE_SMB_OFF_T
allocation_size |= (((uint64_t)IVAL(req->vwv+11, 1)) << 32);
#endif
srvstr_get_path_req(ctx, req, &fname, (const char *)req->buf,
STR_TERMINATE, &status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
END_PROFILE(SMBntcreateX);
return;
}
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, fname = %s\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,
fname));
/*
* we need to remove ignored bits when they come directly from the client
* because we reuse some of them for internal stuff
*/
create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
/*
* 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;
}
reply_doserror(req, ERRDOS, ERRnoaccess);
END_PROFILE(SMBntcreateX);
return;
}
oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
if (oplock_request) {
oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
? BATCH_OPLOCK : 0;
}
status = SMB_VFS_CREATE_FILE(
conn, /* conn */
req, /* req */
root_dir_fid, /* root_dir_fid */
fname, /* fname */
CFF_DOS_PATH, /* create_file_flags */
access_mask, /* access_mask */
share_access, /* share_access */
create_disposition, /* create_disposition*/
create_options, /* create_options */
file_attributes, /* file_attributes */
oplock_request, /* oplock_request */
allocation_size, /* allocation_size */
NULL, /* sd */
NULL, /* ea_list */
&fsp, /* result */
&info, /* pinfo */
&sbuf); /* psbuf */
if (!NT_STATUS_IS_OK(status)) {
if (open_was_deferred(req->mid)) {
/* We have re-scheduled this call, no error. */
END_PROFILE(SMBntcreateX);
return;
}
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
reply_botherror(req, status, ERRDOS, ERRfilexists);
}
else {
reply_nterror(req, status);
}
END_PROFILE(SMBntcreateX);
return;
}
/*
* 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))
|| EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
/*
* Exclusive oplock granted
*/
if (flags & REQUEST_BATCH_OPLOCK) {
oplock_granted = BATCH_OPLOCK_RETURN;
} else {
oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
}
} else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
oplock_granted = LEVEL_II_OPLOCK_RETURN;
} else {
oplock_granted = NO_OPLOCK_RETURN;
}
file_len = sbuf.st_size;
fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
if (fattr == 0) {
fattr = FILE_ATTRIBUTE_NORMAL;
}
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;
SCVAL(p, 0, oplock_granted);
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, SMB_VFS_GET_ALLOC_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, fsp->fsp_name, &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(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)
{
char *fname = NULL;
char *params = *ppparams;
int pnum = -1;
char *p = NULL;
NTSTATUS status;
size_t param_len;
uint32 flags;
TALLOC_CTX *ctx = talloc_tos();
/*
* 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(ctx, params, req->flags2, &fname, params+53,
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(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0);
return;
}
/****************************************************************************
Internal fn to set security descriptors.
****************************************************************************/
static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len,
uint32 security_info_sent)
{
SEC_DESC *psd = NULL;
NTSTATUS status;
if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) {
return NT_STATUS_OK;
}
status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (psd->owner_sid == NULL) {
security_info_sent &= ~OWNER_SECURITY_INFORMATION;
}
if (psd->group_sid == NULL) {
security_info_sent &= ~GROUP_SECURITY_INFORMATION;
}
/* Convert all the generic bits. */
security_acl_map_generic(psd->dacl, &file_generic_mapping);
security_acl_map_generic(psd->sacl, &file_generic_mapping);
if (DEBUGLEVEL >= 10) {
DEBUG(10,("set_sd for file %s\n", fsp->fsp_name ));
NDR_PRINT_DEBUG(security_descriptor, psd);
}
status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd);
TALLOC_FREE(psd);
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)
{
char *fname = NULL;
char *params = *ppparams;
char *data = *ppdata;
/* Breakout the oplock request bits so we can set the reply bits separately. */
uint32 fattr=0;
SMB_OFF_T file_len = 0;
SMB_STRUCT_STAT sbuf;
int info = 0;
files_struct *fsp = NULL;
char *p = NULL;
uint32 flags;
uint32 access_mask;
uint32 file_attributes;
uint32 share_access;
uint32 create_disposition;
uint32 create_options;
uint32 sd_len;
struct security_descriptor *sd = NULL;
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;
NTSTATUS status;
size_t param_len;
uint64_t allocation_size;
int oplock_request;
uint8_t oplock_granted;
TALLOC_CTX *ctx = talloc_tos();
SET_STAT_INVALID(sbuf);
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;
}
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);
allocation_size = (uint64_t)IVAL(params,12);
#ifdef LARGE_SMB_OFF_T
allocation_size |= (((uint64_t)IVAL(params,16)) << 32);
#endif
/*
* we need to remove ignored bits when they come directly from the client
* because we reuse some of them for internal stuff
*/
create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
/* 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 (sd_len) {
DEBUG(10, ("call_nt_transact_create - sd_len = %d\n",
sd_len));
status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len,
&sd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("call_nt_transact_create: "
"unmarshall_sec_desc failed: %s\n",
nt_errstr(status)));
reply_nterror(req, status);
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;
}
/* We have already checked that ea_len <= data_count here. */
ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len,
ea_len);
if (ea_list == NULL) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
}
srvstr_get_path(ctx, params, req->flags2, &fname,
params+53, parameter_count-53,
STR_TERMINATE, &status);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
if (oplock_request) {
oplock_request |= (flags & REQUEST_BATCH_OPLOCK)
? BATCH_OPLOCK : 0;
}
status = SMB_VFS_CREATE_FILE(
conn, /* conn */
req, /* req */
root_dir_fid, /* root_dir_fid */
fname, /* fname */
CFF_DOS_PATH, /* create_file_flags */
access_mask, /* access_mask */
share_access, /* share_access */
create_disposition, /* create_disposition*/
create_options, /* create_options */
file_attributes, /* file_attributes */
oplock_request, /* oplock_request */
allocation_size, /* allocation_size */
sd, /* sd */
ea_list, /* ea_list */
&fsp, /* result */
&info, /* pinfo */
&sbuf); /* psbuf */
if(!NT_STATUS_IS_OK(status)) {
if (open_was_deferred(req->mid)) {
/* We have re-scheduled this call, no error. */
return;
}
reply_openerror(req, status);
return;
}
/*
* 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))
|| EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) {
/*
* Exclusive oplock granted
*/
if (flags & REQUEST_BATCH_OPLOCK) {
oplock_granted = BATCH_OPLOCK_RETURN;
} else {
oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
}
} else if (fsp->oplock_type == LEVEL_II_OPLOCK) {
oplock_granted = LEVEL_II_OPLOCK_RETURN;
} else {
oplock_granted = NO_OPLOCK_RETURN;
}
file_len = sbuf.st_size;
fattr = dos_mode(conn,fsp->fsp_name,&sbuf);
if (fattr == 0) {
fattr = FILE_ATTRIBUTE_NORMAL;
}
/* 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, oplock_granted);
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, SMB_VFS_GET_ALLOC_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, fsp->fsp_name, &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", fsp->fsp_name));
/* Send the required number of replies */
send_nt_replies(conn, 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(struct smb_request *req)
{
/*
* Go through and cancel any pending change notifies.
*/
START_PROFILE(SMBntcancel);
srv_cancel_sign_response(smbd_server_conn);
remove_pending_change_notify_requests_by_mid(req->mid);
remove_pending_lock_requests_by_mid(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(TALLOC_CTX *ctx,
connection_struct *conn,
struct smb_request *req,
const char *oldname_in,
const char *newname_in,
uint32 attrs)
{
struct smb_filename *smb_fname = NULL;
struct smb_filename *smb_fname_new = NULL;
char *oldname = NULL;
char *newname = NULL;
files_struct *fsp1,*fsp2;
uint32 fattr;
int info;
SMB_OFF_T ret=-1;
NTSTATUS status = NT_STATUS_OK;
char *parent;
if (!CAN_WRITE(conn)) {
status = NT_STATUS_MEDIA_WRITE_PROTECTED;
goto out;
}
status = unix_convert(ctx, conn, oldname_in, &smb_fname, 0);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
status = get_full_smb_filename(ctx, smb_fname, &oldname);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
status = check_name(conn, oldname);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
/* Source must already exist. */
if (!VALID_STAT(smb_fname->st)) {
status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
goto out;
}
/* Ensure attributes match. */
fattr = dos_mode(conn, oldname, &smb_fname->st);
if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) {
status = NT_STATUS_NO_SUCH_FILE;
goto out;
}
status = unix_convert(ctx, conn, newname_in, &smb_fname_new, 0);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
status = get_full_smb_filename(ctx, smb_fname_new, &newname);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
status = check_name(conn, newname);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
/* Disallow if newname already exists. */
if (VALID_STAT(smb_fname_new->st)) {
status = NT_STATUS_OBJECT_NAME_COLLISION;
goto out;
}
/* No links from a directory. */
if (S_ISDIR(smb_fname->st.st_mode)) {
status = NT_STATUS_FILE_IS_A_DIRECTORY;
goto out;
}
/* Ensure this is within the share. */
status = check_reduced_name(conn, oldname);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
DEBUG(10,("copy_internals: doing file copy %s to %s\n",
oldname, newname));
status = SMB_VFS_CREATE_FILE(
conn, /* conn */
req, /* req */
0, /* root_dir_fid */
oldname, /* fname */
0, /* create_file_flags */
FILE_READ_DATA, /* access_mask */
(FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
FILE_SHARE_DELETE),
FILE_OPEN, /* create_disposition*/
0, /* create_options */
FILE_ATTRIBUTE_NORMAL, /* file_attributes */
NO_OPLOCK, /* oplock_request */
0, /* allocation_size */
NULL, /* sd */
NULL, /* ea_list */
&fsp1, /* result */
&info, /* pinfo */
&smb_fname->st); /* psbuf */
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
status = SMB_VFS_CREATE_FILE(
conn, /* conn */
req, /* req */
0, /* root_dir_fid */
newname, /* fname */
0, /* create_file_flags */
FILE_WRITE_DATA, /* access_mask */
(FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
FILE_SHARE_DELETE),
FILE_CREATE, /* create_disposition*/
0, /* create_options */
fattr, /* file_attributes */
NO_OPLOCK, /* oplock_request */
0, /* allocation_size */
NULL, /* sd */
NULL, /* ea_list */
&fsp2, /* result */
&info, /* pinfo */
&smb_fname_new->st); /* psbuf */
if (!NT_STATUS_IS_OK(status)) {
close_file(NULL, fsp1, ERROR_CLOSE);
goto out;
}
if (smb_fname->st.st_size) {
ret = vfs_transfer_file(fsp1, fsp2, smb_fname->st.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(NULL, fsp1, NORMAL_CLOSE);
/* Ensure the modtime is set correctly on the destination file. */
set_close_write_time(fsp2, get_mtimespec(&smb_fname->st));
status = close_file(NULL, 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 */
if (!parent_dirname(talloc_tos(), newname, &parent, NULL)) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
file_set_dosmode(conn, newname, fattr, &smb_fname_new->st, parent,
false);
TALLOC_FREE(parent);
if (ret < (SMB_OFF_T)smb_fname->st.st_size) {
status = NT_STATUS_DISK_FULL;
goto out;
}
out:
TALLOC_FREE(smb_fname);
TALLOC_FREE(smb_fname_new);
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(struct smb_request *req)
{
connection_struct *conn = req->conn;
char *oldname = NULL;
char *newname = NULL;
const char *p;
NTSTATUS status;
bool src_has_wcard = False;
bool dest_has_wcard = False;
uint32 attrs;
uint16 rename_type;
TALLOC_CTX *ctx = talloc_tos();
START_PROFILE(SMBntrename);
if (req->wct < 4) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBntrename);
return;
}
attrs = SVAL(req->vwv+0, 0);
rename_type = SVAL(req->vwv+1, 0);
p = (const char *)req->buf + 1;
p += srvstr_get_path_req_wcard(ctx, req, &oldname, p, STR_TERMINATE,
&status, &src_has_wcard);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
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_req_wcard(ctx, req, &newname, p, STR_TERMINATE,
&status, &dest_has_wcard);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
END_PROFILE(SMBntrename);
return;
}
status = resolve_dfspath(ctx, conn,
req->flags2 & FLAGS2_DFS_PATHNAMES,
oldname,
&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(ctx, conn,
req->flags2 & FLAGS2_DFS_PATHNAMES,
newname,
&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;
}
/* The new name must begin with a ':' if the old name is a stream. */
if (is_ntfs_stream_name(oldname) && (newname[0] != ':')) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBntrename);
return;
}
DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname));
switch(rename_type) {
case RENAME_FLAG_RENAME:
status = rename_internals(ctx, conn, req, oldname,
newname, attrs, False, src_has_wcard,
dest_has_wcard, DELETE_ACCESS);
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(ctx,
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(ctx, 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(req, 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(fsp->conn, req, 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,
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;
char *new_name = NULL;
files_struct *fsp = NULL;
bool dest_has_wcard = False;
NTSTATUS status;
TALLOC_CTX *ctx = talloc_tos();
if(parameter_count < 5) {
reply_doserror(req, ERRDOS, ERRbadfunc);
return;
}
fsp = file_fsp(req, SVAL(params, 0));
if (!check_fsp(conn, req, fsp)) {
return;
}
srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4,
parameter_count - 4,
STR_TERMINATE, &status, &dest_has_wcard);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
/*
* W2K3 ignores this request as the RAW-RENAME test
* demonstrates, so we do.
*/
send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n",
fsp->fsp_name, new_name));
return;
}
/******************************************************************************
Fake up a completely empty SD.
*******************************************************************************/
static NTSTATUS 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"));
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_OK;
}
/****************************************************************************
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;
SEC_DESC *psd = NULL;
size_t sd_size;
uint32 security_info_wanted;
files_struct *fsp = NULL;
NTSTATUS status;
DATA_BLOB blob;
if(parameter_count < 8) {
reply_doserror(req, ERRDOS, ERRbadfunc);
return;
}
fsp = file_fsp(req, 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;
}
/*
* Get the permissions to return.
*/
if (!lp_nt_acl_support(SNUM(conn))) {
status = get_null_nt_acl(talloc_tos(), &psd);
} else {
status = SMB_VFS_FGET_NT_ACL(
fsp, security_info_wanted, &psd);
}
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
/* If the SACL/DACL is NULL, but was requested, we mark that it is
* present in the reply to match Windows behavior */
if (psd->sacl == NULL &&
security_info_wanted & SACL_SECURITY_INFORMATION)
psd->type |= SEC_DESC_SACL_PRESENT;
if (psd->dacl == NULL &&
security_info_wanted & DACL_SECURITY_INFORMATION)
psd->type |= SEC_DESC_DACL_PRESENT;
sd_size = ndr_size_security_descriptor(psd, NULL, 0);
DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size));
if (DEBUGLEVEL >= 10) {
DEBUG(10,("call_nt_transact_query_security_desc for file %s\n", fsp->fsp_name));
NDR_PRINT_DEBUG(security_descriptor, psd);
}
SIVAL(params,0,(uint32)sd_size);
if (max_data_count < sd_size) {
send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL,
params, 4, *ppdata, 0);
return;
}
/*
* Allocate the data we will point this at.
*/
data = nttrans_realloc(ppdata, sd_size);
if(data == NULL) {
reply_doserror(req, ERRDOS, ERRnomem);
return;
}
status = marshall_sec_desc(talloc_tos(), psd,
&blob.data, &blob.length);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
SMB_ASSERT(sd_size == blob.length);
memcpy(data, blob.data, sd_size);
send_nt_replies(conn, 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 status;
if(parameter_count < 8) {
reply_doserror(req, ERRDOS, ERRbadfunc);
return;
}
if((fsp = file_fsp(req, 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;
}
status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent);
if (!NT_STATUS_IS_OK(status)) {
reply_nterror(req, status);
return;
}
done:
send_nt_replies(conn, 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;
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(req, 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);*/
SMB_PERFCOUNT_SET_IOCTL(&req->pcd, function);
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(conn, 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)) {
return;
}
data_count = 64;
pdata = nttrans_realloc(ppdata, data_count);
if (pdata == NULL) {
reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
/* For backwards compatibility only store the dev/inode. */
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(conn, 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)) {
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(conn, 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)) {
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_dbg(&sid)));
if (!sid_to_uid(&sid, &uid)) {
DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n",
sid_string_dbg(&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(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0);
return;
}
default:
if (!logged_ioctl_message) {
logged_ioctl_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 (conn->server_info->utok.uid != 0) {
DEBUG(1,("get_user_quota: access_denied service [%s] user "
"[%s]\n", lp_servicename(SNUM(conn)),
conn->server_info->unix_name));
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(req, SVAL(params,0));
if (!check_fsp_ntquota_handle(conn, req, fsp)) {
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->private_data;
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 = ndr_size_dom_sid(
&tmp_list->quotas->sid, NULL, 0);
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 uint64_t */
SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-metze*/
/* the used disk space 8 bytes uint64_t */
SBIG_UINT(entry,16,tmp_list->quotas->usedspace);
/* the soft quotas 8 bytes uint64_t */
SBIG_UINT(entry,24,tmp_list->quotas->softlim);
/* the hard quotas 8 bytes uint64_t */
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 uint64_t */
SBIG_UINT(entry,8,(uint64_t)0); /* this is not 0 in windows...-mezte*/
/* the used disk space 8 bytes uint64_t */
SBIG_UINT(entry,16,qt.usedspace);
/* the soft quotas 8 bytes uint64_t */
SBIG_UINT(entry,24,qt.softlim);
/* the hard quotas 8 bytes uint64_t */
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(conn, 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 (conn->server_info->utok.uid != 0) {
DEBUG(1,("set_user_quota: access_denied service [%s] user "
"[%s]\n", lp_servicename(SNUM(conn)),
conn->server_info->unix_name));
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(req, SVAL(params,0));
if (!check_fsp_ntquota_handle(conn, req, fsp)) {
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 (uint64_t)*/
qt.usedspace = (uint64_t)IVAL(pdata,16);
#ifdef LARGE_SMB_OFF_T
qt.usedspace |= (((uint64_t)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 (uint64_t)*/
qt.softlim = (uint64_t)IVAL(pdata,24);
#ifdef LARGE_SMB_OFF_T
qt.softlim |= (((uint64_t)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 (uint64_t)*/
qt.hardlim = (uint64_t)IVAL(pdata,32);
#ifdef LARGE_SMB_OFF_T
qt.hardlim |= (((uint64_t)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_dbg(&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(conn, 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);
}
SMB_PERFCOUNT_SET_SUBOP(&req->pcd, state->call);
/* 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(struct smb_request *req)
{
connection_struct *conn = req->conn;
uint32_t pscnt;
uint32_t psoff;
uint32_t dscnt;
uint32_t dsoff;
uint16 function_code;
NTSTATUS result;
struct trans_state *state;
START_PROFILE(SMBnttrans);
if (req->wct < 19) {
reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBnttrans);
return;
}
pscnt = IVAL(req->vwv+9, 1);
psoff = IVAL(req->vwv+11, 1);
dscnt = IVAL(req->vwv+13, 1);
dsoff = IVAL(req->vwv+15, 1);
function_code = SVAL(req->vwv+18, 0);
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, 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->vwv+3, 1);
state->data = NULL;
state->total_param = IVAL(req->vwv+1, 1);
state->param = NULL;
state->max_data_return = IVAL(req->vwv+7, 1);
state->max_param_return = IVAL(req->vwv+5, 1);
/* setup count is in *words* */
state->setup_count = 2*CVAL(req->vwv+17, 1);
state->setup = NULL;
state->call = function_code;
DEBUG(10, ("num_setup=%u, "
"param_total=%u, this_param=%u, max_param=%u, "
"data_total=%u, this_data=%u, max_data=%u, "
"param_offset=%u, data_offset=%u\n",
(unsigned)state->setup_count,
(unsigned)state->total_param, (unsigned)pscnt,
(unsigned)state->max_param_return,
(unsigned)state->total_data, (unsigned)dscnt,
(unsigned)state->max_data_return,
(unsigned)psoff, (unsigned)dsoff));
/*
* 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) {
if (trans_oob(state->total_data, 0, dscnt)
|| trans_oob(smb_len(req->inbuf), dsoff, dscnt)) {
goto bad_param;
}
/* 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;
}
memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
}
if (state->total_param) {
if (trans_oob(state->total_param, 0, pscnt)
|| trans_oob(smb_len(req->inbuf), psoff, pscnt)) {
goto bad_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;
}
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));
/*
* No overflow possible here, state->setup_count is an
* unsigned int, being filled by a single byte from
* CVAL(req->vwv+13, 0) above. The cast in the comparison
* below is not necessary, it's here to clarify things. The
* validity of req->vwv and req->wct has been checked in
* init_smb_request already.
*/
if ((state->setup_count/2) + 19 > (unsigned int)req->wct) {
goto bad_param;
}
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;
}
memcpy(state->setup, req->vwv+19, 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(struct smb_request *req)
{
connection_struct *conn = req->conn;
uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp;
struct trans_state *state;
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->vwv+1, 1) < state->total_param) {
state->total_param = IVAL(req->vwv+1, 1);
}
if (IVAL(req->vwv+3, 1) < state->total_data) {
state->total_data = IVAL(req->vwv+3, 1);
}
pcnt = IVAL(req->vwv+5, 1);
poff = IVAL(req->vwv+7, 1);
pdisp = IVAL(req->vwv+9, 1);
dcnt = IVAL(req->vwv+11, 1);
doff = IVAL(req->vwv+13, 1);
ddisp = IVAL(req->vwv+15, 1);
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 (trans_oob(state->total_param, pdisp, pcnt)
|| trans_oob(smb_len(req->inbuf), poff, pcnt)) {
goto bad_param;
}
memcpy(state->param+pdisp, smb_base(req->inbuf)+poff,pcnt);
}
if (dcnt) {
if (trans_oob(state->total_data, ddisp, dcnt)
|| trans_oob(smb_len(req->inbuf), doff, dcnt)) {
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;
}
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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