wireshark/packet-dcerpc-spoolss.c

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/* packet-dcerpc-spoolss.c
* Routines for SMB \PIPE\spoolss packet disassembly
* Copyright 2001, Tim Potter <tpot@samba.org>
*
* $Id: packet-dcerpc-spoolss.c,v 1.7 2002/03/22 10:03:35 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include <string.h>
#include <epan/packet.h>
#include "packet-dcerpc.h"
#include "packet-dcerpc-nt.h"
#include "packet-dcerpc-spoolss.h"
#include "packet-dcerpc-reg.h"
#include "smb.h"
/*
* Hash table for matching responses to replies
*/
#define REQUEST_HASH_INIT_COUNT 100
static GHashTable *request_hash;
static GMemChunk *request_hash_key_chunk;
static GMemChunk *request_hash_value_chunk;
typedef struct {
dcerpc_info di;
guint16 opnum;
} request_hash_key;
typedef struct {
guint16 opnum; /* Tag for union */
guint32 request_num; /* Request frame number */
guint32 response_num; /* Response frame number */
/* Per-request information */
union {
struct {
char *printer_name;
} OpenPrinterEx;
struct {
int level;
} GetPrinter;
} data;
} request_hash_value;
/* Hash a request */
static guint hash_request(gconstpointer k)
{
request_hash_key *r = (request_hash_key *)k;
return r->di.smb_fid + r->di.call_id + r->di.smb_fid;
}
/* Compare two requests */
static gint compare_request(gconstpointer k1, gconstpointer k2)
{
request_hash_key *r1 = (request_hash_key *)k1;
request_hash_key *r2 = (request_hash_key *)k2;
return r1->opnum == r2->opnum && r1->di.call_id == r2->di.call_id &&
r1->di.smb_fid == r2->di.smb_fid &&
r1->di.conv->index == r2->di.conv->index;
}
/* Store private information for a SPOOLSS request */
static void store_request_info(request_hash_key *key,
request_hash_value *value)
{
request_hash_key *chunk_key;
request_hash_value *chunk_value;
chunk_key = g_mem_chunk_alloc(request_hash_key_chunk);
chunk_value = g_mem_chunk_alloc(request_hash_value_chunk);
memcpy(chunk_key, key, sizeof(*key));
memcpy(chunk_value, value, sizeof(*value));
g_hash_table_insert(request_hash, chunk_key, chunk_value);
}
/* Store private information for a SPOOLSS call with no private
information. This is basically for updating the request/response frame
numbers. */
#define SPOOLSS_DUMMY (guint16)-1 /* Dummy opnum */
static void store_request_info_none(packet_info *pinfo, dcerpc_info *di)
{
request_hash_key key;
request_hash_value value;
memcpy(&key.di, di, sizeof(*di));
key.opnum = SPOOLSS_DUMMY;
value.opnum = SPOOLSS_DUMMY;
value.request_num = pinfo->fd->num;
value.response_num = 0;
store_request_info(&key, &value);
}
/* Store private information for a OpenPrinterEx request */
static void store_request_info_OpenPrinterEx(packet_info *pinfo,
dcerpc_info *di,
char *printer_name)
{
request_hash_key key;
request_hash_value value;
memcpy(&key.di, di, sizeof(*di));
key.opnum = SPOOLSS_OPENPRINTEREX;
value.opnum = SPOOLSS_OPENPRINTEREX;
value.data.OpenPrinterEx.printer_name = strdup(printer_name);
value.request_num = pinfo->fd->num;
value.response_num = 0;
store_request_info(&key, &value);
}
/* Store private information for a GetPrinter request */
static void store_request_info_GetPrinter(packet_info *pinfo,
dcerpc_info *di,
int level)
{
request_hash_key key;
request_hash_value value;
memcpy(&key.di, di, sizeof(*di));
key.opnum = SPOOLSS_GETPRINTER;
value.opnum = SPOOLSS_GETPRINTER;
value.data.GetPrinter.level = level;
value.request_num = pinfo->fd->num;
value.response_num = 0;
store_request_info(&key, &value);
}
/* Fetch private information for a SPOOLSS request */
static request_hash_value *fetch_request_info(packet_info *pinfo,
dcerpc_info *di,
guint16 opnum)
{
request_hash_key key;
request_hash_value *result;
key.di = *di;
key.opnum = opnum;
result = g_hash_table_lookup(request_hash, &key);
if (result && result->opnum != opnum)
g_warning("Tag for response packet at frame %d is %d, not %d",
pinfo->fd->num, result->opnum, opnum);
return result;
}
/* Add a text item like "Response in frame %d" using some request_info */
static void add_request_text(proto_tree *tree, tvbuff_t *tvb, int offset,
request_hash_value *request_info)
{
if (request_info && request_info->response_num)
proto_tree_add_text(tree, tvb, offset, 0,
"Response in frame %d",
request_info->response_num);
}
/* Add a text item like "Request in frame %d" using some request_info */
static void add_response_text(proto_tree *tree, tvbuff_t *tvb, int offset,
request_hash_value *request_info)
{
if (request_info && request_info->request_num)
proto_tree_add_text(tree, tvb, offset, 0,
"Request in frame %d",
request_info->request_num);
}
/*
* Hash table for matching policy handles to printer names
*/
static int printer_ndx; /* Hack for printer names */
#define POLICY_HND_HASH_INIT_COUNT 100
static GHashTable *policy_hnd_hash;
static GMemChunk *policy_hnd_hash_key_chunk;
static GMemChunk *policy_hnd_hash_value_chunk;
typedef struct {
guint8 policy_hnd[20];
} policy_hnd_hash_key;
typedef struct {
char *printer_name;
} policy_hnd_hash_value;
static void dump_policy_hnd(const guint8 *policy_hnd)
{
int i, csum = 0;
for(i = 0; i < 20; i++) {
fprintf(stderr, "%02x ", policy_hnd[i]);
csum += policy_hnd[i];
}
fprintf(stderr, "- %d\n", csum);
}
static guint hash_policy_hnd(gconstpointer k)
{
policy_hnd_hash_key *p = (policy_hnd_hash_key *)k;
guint hash;
/* Bytes 4-7 of the policy handle are a timestamp so should make a
reasonable hash value */
hash = p->policy_hnd[4] + (p->policy_hnd[5] << 8) +
(p->policy_hnd[6] << 16) + (p->policy_hnd[7] << 24);
return hash;
}
static gint compare_policy_hnd(gconstpointer k1, gconstpointer k2)
{
policy_hnd_hash_key *p1 = (policy_hnd_hash_key *)k1;
policy_hnd_hash_key *p2 = (policy_hnd_hash_key *)k2;
return memcmp(p1->policy_hnd, p2->policy_hnd, 20) == 0;
}
static gboolean is_null_policy_hnd(const guint8 *policy_hnd)
{
static guint8 null_policy_hnd[20];
return memcmp(policy_hnd, null_policy_hnd, 20) == 0;
}
/* Associate a policy handle with a printer name */
static void store_printer_name(const guint8 *policy_hnd, char *printer_name)
{
policy_hnd_hash_key *key;
policy_hnd_hash_value *value;
if (is_null_policy_hnd(policy_hnd))
return;
key = g_mem_chunk_alloc(policy_hnd_hash_key_chunk);
value = g_mem_chunk_alloc(policy_hnd_hash_value_chunk);
memcpy(key->policy_hnd, policy_hnd, 20);
value->printer_name = strdup(printer_name);
g_hash_table_insert(policy_hnd_hash, key, value);
}
/* Retrieve a printer name from a policy handle */
static char *fetch_printer_name(const guint8 *policy_hnd)
{
policy_hnd_hash_key key;
policy_hnd_hash_value *value;
if (is_null_policy_hnd(policy_hnd))
return NULL;
memcpy(&key.policy_hnd, policy_hnd, 20);
value = g_hash_table_lookup(policy_hnd_hash, &key);
if (value)
return value->printer_name;
return NULL;
}
/* Delete the association between a policy handle and printer name */
static void delete_printer_name(guint8 *policy_hnd)
{
}
/* Read a policy handle and append the printer name associated with it to
the packet info column */
static void append_printer_name(packet_info *pinfo, tvbuff_t *tvb,
int offset, const guint8 *policy_hnd)
{
if (check_col(pinfo->cinfo, COL_INFO)) {
char *printer_name;
printer_name = fetch_printer_name(policy_hnd);
if (printer_name)
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s",
printer_name);
}
}
/*
* New system for handling pointers and buffers. We act more like the NDR
* specification and have a list of deferred pointers which are processed
* after a structure has been parsed.
*
* Each structure has a parse function which takes as an argument a GList.
* As pointers are processed, they are appended onto this list. When the
* structure is complete, the pointers (referents) are processed by calling
* prs_referents(). In the case of function arguments, the
* prs_struct_and_referents() function is called as pointers are always
* processed immediately after the argument.
*/
typedef int prs_fn(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data);
/* Deferred referent */
struct deferred_ptr {
prs_fn *fn; /* Parse function to call */
proto_tree *tree; /* Tree context */
};
/* A structure to hold needed ethereal state to pass to GList foreach
iterator. */
struct deferred_ptr_state {
tvbuff_t *tvb;
int *poffset;
packet_info *pinfo;
GList **dp_list;
void **ptr_data;
};
void defer_ptr(GList **list, prs_fn *fn, proto_tree *tree)
{
struct deferred_ptr *dr;
dr = g_malloc(sizeof(struct deferred_ptr));
dr->fn = fn;
dr->tree = tree;
*list = g_list_append(*list, dr);
}
/* Parse a pointer */
static int prs_ptr(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, guint32 *data, char *name)
{
guint32 ptr;
offset = prs_uint32(tvb, offset, pinfo, tree, &ptr, NULL);
if (tree && name)
proto_tree_add_text(tree, tvb, offset - 4, 4,
"%s pointer: 0x%08x", name, ptr);
if (data)
*data = ptr;
return offset;
}
/* Iterator function for prs_referents */
static void dr_iterator(gpointer data, gpointer user_data)
{
struct deferred_ptr *dp = (struct deferred_ptr *)data;
struct deferred_ptr_state *s = (struct deferred_ptr_state *)user_data;
/* Parse pointer */
*s->poffset = dp->fn(s->tvb, *s->poffset, s->pinfo, dp->tree,
s->dp_list, s->ptr_data);
if (s->ptr_data)
s->ptr_data++; /* Ready for next parse fn */
}
/* Call the parse function for each element in the deferred pointers list.
If there are any additional pointers in these structures they are pushed
onto parent_dp_list. */
int prs_referents(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, GList **list,
void ***ptr_data)
{
struct deferred_ptr_state s;
int new_offset = offset;
/* Create a list of void pointers to store return data */
if (ptr_data) {
int len = g_list_length(*dp_list) * sizeof(void *);
if (len > 0) {
*ptr_data = malloc(len);
memset(*ptr_data, 0, len);
} else
*ptr_data = NULL;
}
/* Set up iterator data */
s.tvb = tvb;
s.poffset = &new_offset;
s.pinfo = pinfo;
s.dp_list = dp_list;
s.ptr_data = ptr_data ? *ptr_data : NULL;
g_list_foreach(*list, dr_iterator, &s);
*list = NULL; /* XXX: free list */
return new_offset;
}
/* Parse a structure then clean up any deferred referants it creates. */
static int prs_struct_and_referents(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
prs_fn *fn, void **data, void ***ptr_data)
{
GList *dp_list = NULL;
offset = fn(tvb, offset, pinfo, tree, &dp_list, data);
offset = prs_referents(tvb, offset, pinfo, tree, &dp_list,
&dp_list, ptr_data);
return offset;
}
/* Parse a Win32 error, basically a DOS error. The spoolss API doesn't
use NT status codes. */
static int prs_werror(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, guint32 *data)
{
guint32 status;
offset = prs_uint32(tvb, offset, pinfo, tree, &status, NULL);
if (tree)
proto_tree_add_text(tree, tvb, offset - 4, 4, "Status: %s",
val_to_str(status, DOS_errors,
"Unknown error"));
if (status != 0 && check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s",
val_to_str(status, DOS_errors,
"Unknown error"));
if (data)
*data = status;
return offset;
}
/*
* SpoolssClosePrinter
*/
static int SpoolssClosePrinter_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
const guint8 *policy_hnd;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "ClosePrinter request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, &policy_hnd);
append_printer_name(pinfo, tvb, offset, policy_hnd);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssClosePrinter_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "ClosePrinter response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/* Parse a UNISTR2 structure */
static gint ett_UNISTR2 = -1;
static int prs_UNISTR2_dp(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 length, the_offset, max_len;
int old_offset = offset;
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
int data16_offset;
char *text;
offset = prs_uint32(tvb, offset, pinfo, tree, &length, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, &the_offset, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, &max_len, NULL);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
offset = prs_uint16s(tvb, offset, pinfo, tree, max_len, &data16_offset,
NULL);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
text = fake_unicode(tvb, data16_offset, max_len);
item = proto_tree_add_text(tree, tvb, old_offset, offset - old_offset,
"UNISTR2: %s", text);
subtree = proto_item_add_subtree(item, ett_UNISTR2);
if (data)
*data = text;
else
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(text);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
proto_tree_add_text(subtree, tvb, old_offset, 4, "Length: %u", length);
old_offset += 4;
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
proto_tree_add_text(subtree, tvb, old_offset, 4, "Offset: %u",
the_offset);
old_offset += 4;
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
proto_tree_add_text(subtree, tvb, old_offset, 4, "Max length: %u",
max_len);
old_offset += 4;
proto_tree_add_text(subtree, tvb, old_offset, max_len * 2, "Data");
return offset;
}
/*
* SpoolssGetPrinterData
*/
static int SpoolssGetPrinterData_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
char *value_name;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "GetPrinterData request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, (void **)&value_name,
NULL);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", value_name);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(value_name);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Size");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssGetPrinterData_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
guint32 size, type;
/* Update information fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "GetPrinterData response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_uint32(tvb, offset, pinfo, tree, &type, NULL);
proto_tree_add_text(tree, tvb, offset - 4, 4, "Type: %s",
val_to_str(type, reg_datatypes, "Unknown type"));
offset = prs_uint32(tvb, offset, pinfo, tree, &size, "Size");
offset = prs_uint8s(tvb, offset, pinfo, tree, size, NULL, "Data");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Needed");
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssGetPrinterDataEx
*/
static int SpoolssGetPrinterDataEx_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
char *key_name, *value_name;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"GetPrinterDataEx request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, (void **)&key_name,
NULL);
/*
* Register a cleanup function in case on of our tvbuff accesses
* throws an exception. We need to clean up key_name.
*/
CLEANUP_PUSH(g_free, key_name);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, (void **)&value_name,
NULL);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s/%s",
key_name, value_name);
/*
* We're done with key_name, so we can call the cleanup handler to
* free it, and then pop the cleanup handler.
*/
CLEANUP_CALL_AND_POP;
/*
* We're also done with value_name.
*/
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(value_name);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Size");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssGetPrinterDataEx_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
guint32 size, type;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"GetPrinterDataEx response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_uint32(tvb, offset, pinfo, tree, &type, NULL);
proto_tree_add_text(tree, tvb, offset - 4, 4, "Type: %s",
val_to_str(type, reg_datatypes, "Unknown type"));
offset = prs_uint32(tvb, offset, pinfo, tree, &size, "Size");
offset = prs_uint8s(tvb, offset, pinfo, tree, size, NULL, "Data");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Needed");
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssSetPrinterData
*/
static int SpoolssSetPrinterData_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
char *value_name;
guint32 type, max_len;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "SetPrinterData request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, (void **)&value_name,
NULL);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", value_name);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(value_name);
offset = prs_uint32(tvb, offset, pinfo, tree, &type, NULL);
proto_tree_add_text(tree, tvb, offset - 4, 4, "Type: %s",
val_to_str(type, reg_datatypes, "Unknown type"));
offset = prs_uint32(tvb, offset, pinfo, tree, &max_len, "Max length");
offset = prs_uint8s(tvb, offset, pinfo, tree, max_len, NULL,
"Data");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Real length");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssSetPrinterData_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "SetPrinterData response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssSetPrinterDataEx
*/
static int SpoolssSetPrinterDataEx_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
char *key_name, *value_name;
guint32 type, max_len;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"SetPrinterDataEx request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, (void **)&key_name,
NULL);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, (void **)&value_name,
NULL);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s/%s",
key_name, value_name);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(key_name);
g_free(value_name);
offset = prs_uint32(tvb, offset, pinfo, tree, &type, NULL);
proto_tree_add_text(tree, tvb, offset - 4, 4, "Type: %s",
val_to_str(type, reg_datatypes, "Unknown type"));
offset = prs_uint32(tvb, offset, pinfo, tree, &max_len, "Max length");
offset = prs_uint8s(tvb, offset, pinfo, tree, max_len, NULL,
"Data");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Real length");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssSetPrinterDataEx_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"SetPrinterDataEx response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/* Yet another way to represent a unicode string - sheesh. */
static int prs_uint16uni(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, void **data, char *name)
{
gint len = 0, remaining, i;
char *text;
offset = prs_align(offset, 2);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
/* Get remaining data in buffer as a string */
remaining = tvb_length_remaining(tvb, offset)/2;
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
text = fake_unicode(tvb, offset, remaining);
len = strlen(text);
if (name)
proto_tree_add_text(tree, tvb, offset, (len + 1) * 2,
"%s: %s", name ? name : "UINT16UNI",
text);
if (data)
*data = text;
else
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(text);
return offset + (len + 1) * 2;
}
/*
* DEVMODE
*/
static gint ett_DEVMODE = -1;
static int prs_DEVMODE(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0;
guint16 extra;
item = proto_tree_add_text(tree, tvb, offset, 0, "DEVMODE");
subtree = proto_item_add_subtree(item, ett_DEVMODE);
offset = prs_uint16uni(tvb, offset, pinfo, subtree, NULL, "Devicename");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Spec version");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Driver version");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Size");
offset = prs_uint16(tvb, offset, pinfo, subtree, &extra, "Driver extra");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Fields");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Orientation");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Paper size");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Paper length");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Paper width");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Scale");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Copies");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Default source");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Print quality");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Color");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Duplex");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Y resolution");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "TT option");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Collate");
offset = prs_uint16s(tvb, offset, pinfo, subtree, 32, NULL, "Buffer");
offset = prs_uint16uni(tvb, offset, pinfo, subtree, NULL, "Form name");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Log pixels");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Bits per pel");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Pels width");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Pels height");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Display flags");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Display frequency");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "ICM method");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "ICM intent");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Media type");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Dither type");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Reserved");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Reserved");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Panning width");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Panning height");
if (extra != 0)
offset = prs_uint8s(tvb, offset, pinfo, subtree, extra, NULL,
"Private");
return offset;
}
/*
* Relative string given by offset into the current buffer. Note that
* the offset for subsequent relstrs are against the structure start, not
* the point where the offset is parsed from.
*/
static gint ett_RELSTR = -1;
static int prs_relstr(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, int struct_start,
void **data, char *name)
{
proto_item *item;
proto_tree *subtree;
guint32 relstr_offset, relstr_start, relstr_end;
guint16 *ptr;
char *text = strdup("NULL");
gint len = 0, remaining, i;
offset = prs_uint32(tvb, offset, pinfo, tree, &relstr_offset, NULL);
/* A relative offset of zero is a NULL string */
relstr_start = relstr_offset + struct_start;
if (relstr_offset)
relstr_end = prs_uint16uni(tvb, relstr_start, pinfo, tree,
(void **)&text, NULL);
else
relstr_end = offset;
item = proto_tree_add_text(tree, tvb, relstr_start,
relstr_end - relstr_start, "%s: %s",
name ? name : "RELSTR", text);
subtree = proto_item_add_subtree(item, ett_RELSTR);
if (data)
*data = text;
else
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(text);
proto_tree_add_text(subtree, tvb, offset - 4, 4,
"Relative offset: %d", relstr_offset);
proto_tree_add_text(subtree, tvb, relstr_start,
relstr_end - relstr_start, "Data");
return offset;
}
/*
* PRINTER_INFO_0
*/
static gint ett_PRINTER_INFO_0 = -1;
static int prs_PRINTER_INFO_0(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
int struct_start = offset;
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Printer name");
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Server name");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "CJobs");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Total jobs");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Total bytes");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Year");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Month");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Day of week");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Day");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Hour");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Minute");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Second");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Milliseconds");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Global counter");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Total pages");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Major version");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Build version");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Session counter");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Printer errors");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Change id");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Status");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "C_setprinter");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint16(tvb, offset, pinfo, tree, NULL, "Unknown");
return offset;
}
/*
* PRINTER_INFO_1
*/
static gint ett_PRINTER_INFO_1 = -1;
static int prs_PRINTER_INFO_1(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
return offset;
}
/*
* PRINTER_INFO_2
*/
static gint ett_PRINTER_INFO_2 = -1;
static int prs_PRINTER_INFO_2(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
int struct_start = offset;
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Server name");
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Printer name");
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Share name");
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Port name");
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Driver name");
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Comment");
offset = prs_relstr(tvb, offset, pinfo, tree, dp_list, struct_start,
NULL, "Location");
return offset;
}
/*
* PRINTER_INFO_3
*/
static gint ett_PRINTER_INFO_3 = -1;
static int prs_PRINTER_INFO_3(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
return offset;
}
/*
* DEVMODE_CTR
*/
static gint ett_DEVMODE_CTR = -1;
static int prs_DEVMODE_CTR(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0;
item = proto_tree_add_text(tree, tvb, offset, 0, "DEVMODE_CTR");
subtree = proto_item_add_subtree(item, ett_DEVMODE_CTR);
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Size");
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "Devicemode");
if (ptr)
defer_ptr(dp_list, prs_DEVMODE, subtree);
return offset;
}
/*
* PRINTER_DEFAULT structure
*/
static gint ett_PRINTER_DEFAULT = -1;
static int prs_PRINTER_DEFAULT(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
GList *child_dp_list = NULL;
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0, access;
item = proto_tree_add_text(tree, tvb, offset, 0, "PRINTER_DEFAULT");
subtree = proto_item_add_subtree(item, ett_PRINTER_DEFAULT);
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "Datatype");
/* Not sure why this isn't a deferred pointer. I think this may be
two structures stuck together. */
if (ptr)
offset = prs_UNISTR2_dp(tvb, offset, pinfo, subtree, dp_list,
NULL);
offset = prs_DEVMODE_CTR(tvb, offset, pinfo, subtree,
&child_dp_list, NULL);
offset = prs_uint32(tvb, offset, pinfo, subtree, &access, NULL);
proto_tree_add_text(subtree, tvb, offset - 4, 4,
"Access required: 0x%08x", access);
offset = prs_referents(tvb, offset, pinfo, subtree, dp_list,
&child_dp_list, NULL);
return offset;
}
/*
* USER_LEVEL_1 structure
*/
static gint ett_USER_LEVEL_1 = -1;
static int prs_USER_LEVEL_1(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0;
item = proto_tree_add_text(tree, tvb, offset, 0, "USER_LEVEL_1");
subtree = proto_item_add_subtree(item, ett_USER_LEVEL_1);
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Size");
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "Client name");
if (ptr)
defer_ptr(dp_list, prs_UNISTR2_dp, subtree);
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "User name");
if (ptr)
defer_ptr(dp_list, prs_UNISTR2_dp, subtree);
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Build");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Major");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Minor");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Processor");
return offset;
}
/*
* USER_LEVEL structure
*/
static gint ett_USER_LEVEL = -1;
static int prs_USER_LEVEL(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **parent_dp_list,
void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0;
guint32 level;
item = proto_tree_add_text(tree, tvb, offset, 0, "USER_LEVEL");
subtree = proto_item_add_subtree(item, ett_USER_LEVEL);
offset = prs_uint32(tvb, offset, pinfo, subtree, &level, "Info level");
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "User level");
if (ptr) {
switch (level) {
case 1:
defer_ptr(parent_dp_list, prs_USER_LEVEL_1, subtree);
break;
default:
proto_tree_add_text(
tree, tvb, offset, 0,
"[GetPrinter level %d not decoded]", level);
break;
}
}
return offset;
}
/*
* SpoolssOpenPrinterEx
*/
static int SpoolssOpenPrinterEx_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
char *printer_name;
guint32 ptr = 0;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "OpenPrinterEx request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_OPENPRINTEREX);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
/* Parse packet */
offset = prs_ptr(tvb, offset, pinfo, tree, &ptr, "Printer name");
if (ptr) {
char *printer_name;
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp,
(void **)&printer_name,
NULL);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s",
printer_name);
if (!request_info) {
/* Store printer name to match with response packet */
store_request_info_OpenPrinterEx(pinfo, di,
printer_name);
}
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(printer_name);
}
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_PRINTER_DEFAULT, NULL, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "User switch");
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_USER_LEVEL, NULL, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssOpenPrinterEx_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
int start_offset = offset;
guint32 status;
/* Display informational data */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "OpenPrinterEx response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_OPENPRINTEREX);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_werror(tvb, offset, pinfo, tree, &status);
if (status == 0) {
const guint8 *policy_hnd;
/* Associate the returned printer handle with a name */
policy_hnd = tvb_get_ptr(tvb, start_offset, 20);
if (request_info) {
char *printer_name;
printer_name =
request_info->data.OpenPrinterEx.printer_name;
if (printer_name)
store_printer_name(policy_hnd, printer_name);
}
}
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* NOTIFY_OPTION_DATA structure
*/
static gint ett_NOTIFY_OPTION_DATA = -1;
static int prs_NOTIFY_OPTION_DATA(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
GList **parent_dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 count, i;
item = proto_tree_add_text(tree, tvb, offset, 0, "NOTIFY_OPTION_DATA");
subtree = proto_item_add_subtree(item, ett_NOTIFY_OPTION_DATA);
offset = prs_uint32(tvb, offset, pinfo, subtree, &count, "Count");
for (i = 0; i < count; i++)
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL,
"Field");
return offset;
}
/*
* NOTIFY_OPTION structure
*/
static gint ett_NOTIFY_OPTION = -1;
static int prs_NOTIFY_OPTION(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **parent_dp_list,
void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0;
item = proto_tree_add_text(tree, tvb, offset, 0, "NOTIFY_OPTION");
subtree = proto_item_add_subtree(item, ett_NOTIFY_OPTION);
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Type");
offset = prs_uint16(tvb, offset, pinfo, subtree, NULL, "Reserved");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Reserved");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Reserved");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Count");
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "Fields");
if (ptr)
defer_ptr(parent_dp_list, prs_NOTIFY_OPTION_DATA, subtree);
return offset;
}
/*
* NOTIFY_OPTION_CTR structure
*/
static gint ett_NOTIFY_OPTION_CTR = -1;
static int prs_NOTIFY_OPTION_CTR(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
GList **dp_list, void **data)
{
GList *child_dp_list = NULL;
proto_item *item;
proto_tree *subtree;
guint32 count, i, ptr;
item = proto_tree_add_text(tree, tvb, offset, 0,
"NOTIFY_OPTION_CTR");
subtree = proto_item_add_subtree(item, ett_NOTIFY_OPTION_CTR);
offset = prs_uint32(tvb, offset, pinfo, subtree, &count, "Count");
for (i = 0; i < count; i++)
offset = prs_NOTIFY_OPTION(tvb, offset, pinfo, subtree,
&child_dp_list, NULL);
offset = prs_referents(tvb, offset, pinfo, subtree, dp_list,
&child_dp_list, NULL);
return offset;
}
/*
* NOTIFY_OPTION structure
*/
gint ett_NOTIFY_OPTION_ARRAY = -1;
static int prs_NOTIFY_OPTION_ARRAY(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
GList **dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0;
item = proto_tree_add_text(tree, tvb, offset, 0,
"NOTIFY_OPTION_ARRAY");
subtree = proto_item_add_subtree(item, ett_NOTIFY_OPTION_ARRAY);
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Version");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Flags");
offset = prs_uint32(tvb, offset, pinfo, subtree, NULL, "Count");
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "Option type");
if (ptr)
defer_ptr(dp_list, prs_NOTIFY_OPTION_CTR, subtree);
return offset;
}
/*
* SpoolssRFFPCNEX
*/
static int SpoolssRFFPCNEX_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
char *printer_name;
guint32 ptr = 0;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "RFFPCNEX request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Flags");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Options");
offset = prs_ptr(tvb, offset, pinfo, tree, &ptr, "Local machine");
if (ptr) {
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp,
(void *)&printer_name, NULL);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s",
printer_name);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(printer_name);
}
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Printer local");
offset = prs_ptr(tvb, offset, pinfo, tree, &ptr, "Option");
if (ptr) {
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_NOTIFY_OPTION_ARRAY,
NULL, NULL);
}
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssRFFPCNEX_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "RFFPCNEX response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssReplyOpenPrinter
*/
static int SpoolssReplyOpenPrinter_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
guint32 ptr = 0, type;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"ReplyOpenPrinter request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, NULL, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Printer");
offset = prs_uint32(tvb, offset, pinfo, tree, &type, NULL);
proto_tree_add_text(tree, tvb, offset - 4, 4, "Type: %s",
val_to_str(type, reg_datatypes, "Unknown type"));
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssReplyOpenPrinter_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"ReplyOpenPrinter response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* BUFFER_DATA
*/
static gint ett_BUFFER_DATA = -1;
static gint ett_BUFFER_DATA_BUFFER = -1;
struct BUFFER_DATA {
proto_item *item; /* proto_item holding proto_tree */
proto_tree *tree; /* proto_tree holding buffer data */
tvbuff_t *tvb;
int offset; /* Offset where data starts in tvb*/
};
static int prs_BUFFER_DATA(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
proto_item *item, *subitem;
proto_tree *subtree, *subsubtree;
guint32 ptr = 0, size;
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
int data8_offset;
item = proto_tree_add_text(tree, tvb, offset, 0, "BUFFER_DATA");
subtree = proto_item_add_subtree(item, ett_BUFFER_DATA);
offset = prs_uint32(tvb, offset, pinfo, subtree, &size, "Size");
subitem = proto_tree_add_text(subtree, tvb, offset, size, "Data");
subsubtree = proto_item_add_subtree(subitem, ett_BUFFER_DATA_BUFFER);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
offset = prs_uint8s(tvb, offset, pinfo, subsubtree, size,
&data8_offset, NULL);
/* Return some info which will help the caller "cast" the buffer
data and dissect it further. */
if (data) {
struct BUFFER_DATA *bd;
bd = (struct BUFFER_DATA *)malloc(sizeof(struct BUFFER_DATA));
bd->item = subitem;
bd->tree = subsubtree;
bd->tvb = tvb;
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
bd->offset = data8_offset;
*data = bd;
}
return offset;
}
/*
* BUFFER
*/
static gint ett_BUFFER = -1;
static int prs_BUFFER(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, GList **dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0;
item = proto_tree_add_text(tree, tvb, offset, 0, "BUFFER");
subtree = proto_item_add_subtree(item, ett_BUFFER);
offset = prs_ptr(tvb, offset, pinfo, subtree, &ptr, "Data");
if (ptr)
defer_ptr(dp_list, prs_BUFFER_DATA, subtree);
return offset;
}
/*
* SpoolssGetPrinter
*/
static int SpoolssGetPrinter_q(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
guint32 level;
const guint8 *policy_hnd;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "GetPrinter request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_GETPRINTER);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, &policy_hnd);
append_printer_name(pinfo, tvb, offset, policy_hnd);
offset = prs_uint32(tvb, offset, pinfo, tree, &level, "Level");
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", level %d", level);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_BUFFER, NULL, NULL);
if (!request_info) {
/* Store info level to match with response packet */
store_request_info_GetPrinter(pinfo, di, level);
}
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Offered");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssGetPrinter_r(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
void **data_list;
struct BUFFER_DATA *bd = NULL;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "GetPrinter response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_GETPRINTER);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_BUFFER, NULL, &data_list);
if (data_list)
bd = (struct BUFFER_DATA *)data_list[0];
if (bd && bd->tree && request_info) {
gint16 level = request_info->data.GetPrinter.level;
proto_item_append_text(bd->item, ", PRINTER_INFO_%d", level);
switch (level) {
case 0:
prs_PRINTER_INFO_0(bd->tvb, bd->offset, pinfo,
bd->tree, &dp_list, NULL);
break;
case 2:
prs_PRINTER_INFO_2(bd->tvb, bd->offset, pinfo,
bd->tree, &dp_list, NULL);
break;
default:
proto_tree_add_text(tree, tvb, offset, 0,
"[Unimplemented info level %d]",
level);
break;
}
}
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Needed");
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SPOOL_PRINTER_INFO_LEVEL
*/
static gint ett_SPOOL_PRINTER_INFO_LEVEL = -1;
static int prs_SPOOL_PRINTER_INFO_LEVEL(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
GList **dp_list, void **data)
{
proto_item *item;
proto_tree *subtree;
guint32 ptr = 0, level;
item = proto_tree_add_text(tree, tvb, offset, 0,
"SPOOL_PRINTER_INFO_LEVEL");
subtree = proto_item_add_subtree(item, ett_SPOOL_PRINTER_INFO_LEVEL);
offset = prs_uint32(tvb, offset, pinfo, subtree, &level, "Level");
/* ptr */
switch(level) {
}
return offset;
}
/*
* SpoolssSetPrinter
*/
static int SpoolssSetPrinter_q(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
guint32 level;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "SetPrinter request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, &level, "Level");
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", level %d", level);
/* printer_info_level */
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_SPOOL_PRINTER_INFO_LEVEL,
NULL, NULL);
/* devmode_ctr */
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Command");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssSetPrinter_r(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "SetPrinter response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssEnumForms
*/
static int SpoolssEnumForms_q(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
guint32 level;
const guint8 *policy_hnd;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "EnumForms request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, &policy_hnd);
append_printer_name(pinfo, tvb, offset, policy_hnd);
offset = prs_uint32(tvb, offset, pinfo, tree, &level, "Level");
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", level %d", level);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_BUFFER, NULL, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Offered");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssEnumForms_r(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
GList *dp_list = NULL;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "EnumForms response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_BUFFER, NULL, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Needed");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Num entries");
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssDeletePrinter
*/
static int SpoolssDeletePrinter_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
const guint8 *policy_hnd;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "DeletePrinter request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, &policy_hnd);
append_printer_name(pinfo, tvb, offset, policy_hnd);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssDeletePrinter_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "DeletePrinter response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* AddPrinterEx
*/
static int SpoolssAddPrinterEx_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
guint32 ptr;
char *printer_name;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "AddPrinterEx request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_ptr(tvb, offset, pinfo, tree, &ptr, "Server name");
if (ptr) {
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp,
(void *)&printer_name, NULL);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(printer_name);
}
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Level");
/* PRINTER INFO LEVEL */
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Unknown");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "User switch");
/* USER LEVEL */
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssAddPrinterEx_r(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
int start_offset = offset;
guint32 status;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "AddPrinterEx response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, NULL);
offset = prs_werror(tvb, offset, pinfo, tree, &status);
if (status == 0) {
const guint8 *policy_hnd;
char *printer_name;
/* Associate the returned printer handle with a name */
policy_hnd = tvb_get_ptr(tvb, start_offset, 20);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
printer_name = g_strdup("<printer name here>");
store_printer_name(policy_hnd, printer_name);
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s",
printer_name);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(printer_name);
}
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssEnumPrinterData
*/
static int SpoolssEnumPrinterData_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
const guint8 *policy_hnd;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "EnumPrinterData request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_policy_hnd(tvb, offset, pinfo, tree, &policy_hnd);
append_printer_name(pinfo, tvb, offset, policy_hnd);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Index");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Value size");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Data size");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssEnumPrinterData_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
guint32 data_size, type, value_size;
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
int uint16s_offset;
char *text;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"EnumPrinterData response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_uint32(tvb, offset, pinfo, tree, &value_size,
"Value size");
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
offset = prs_uint16s(tvb, offset, pinfo, tree, value_size,
&uint16s_offset, NULL);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
text = fake_unicode(tvb, uint16s_offset, value_size);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
proto_tree_add_text(tree, tvb, uint16s_offset,
value_size * 2, "Value: %s", text);
if (text[0] && check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", text);
There is no guarantee that a buffer obtained using "tvb_get_ptr()" is neatly aligned on a 2-byte or a 4-byte boundary, and there is no guarantee that a misaligned pointer can be dereferenced without getting a fault. Furthermore, there is no guarantee that, even if you *can* dereference a pointer to a 2-byte or 4-byte quantity in a packet, the resulting number you get back is in the right byte order; the data in the packet might have a different byte order from the machine on which you're running. Therefore, we change "prs_uint8s()", "prs_uint16s()", and "prs_uint32s()" to return the starting offset, in the tvbuff, of the collection of 8-bit, 16-bit, or 32-bit integral values, rather than a pointer to the raw packet data, and change their callers to fetch the data using "tvb_get_guint8()", "tvb_get_letohs()", and "tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be little-endian here). We also change "fake_unicode()" to take a tvbuff and an offset, rather than a data pointer, as arguments, and to use "tvb_get_letohs()" to fetch the Unicode characters (again, we assume little-endian Unicode). This requires "fake_unicode()" to establish a cleanup handler, so we don't leak memory if it throws an exception. We also make "fake_unicode()" use "g_malloc()" to allocate its buffer (we weren't checking for allocation failures in any case; with "g_malloc()", we'll abort on an allocation failure - if we can come up with a cleverer way of handling them, fine), and the matching frees to use "g_free()". (We also insert some missing frees....) Fix some formats to print unsigned quantities with "%u", not "%d". Don't append text to items in the tree for non-string values in "dissect_ndr_nt_STRING_string()". svn path=/trunk/; revision=4986
2002-03-19 22:09:23 +00:00
g_free(text);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Real value size");
offset = prs_uint32(tvb, offset, pinfo, tree, &type, NULL);
proto_tree_add_text(tree, tvb, offset - 4, 4, "Type: %s",
val_to_str(type, reg_datatypes, "Unknown type"));
offset = prs_uint32(tvb, offset, pinfo, tree, &data_size, "Data size");
offset = prs_uint8s(tvb, offset, pinfo, tree, data_size, NULL,
"Data");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Real data size");
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* SpoolssEnumPrinters
*/
static int SpoolssEnumPrinters_q(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
guint32 ptr, level;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "EnumPrinters request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Flags");
offset = prs_ptr(tvb, offset, pinfo, tree, &ptr, "Devicemode");
if (ptr)
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_UNISTR2_dp, NULL, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, &level, "Level");
if (check_col(pinfo->cinfo, COL_INFO))
col_append_fstr(pinfo->cinfo, COL_INFO, ", level, %d", level);
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_BUFFER, NULL, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Offered");
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssEnumPrinters_r(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "EnumPrinters response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_struct_and_referents(tvb, offset, pinfo, tree,
prs_BUFFER, NULL, NULL);
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Needed");
offset = prs_uint32(tvb, offset, pinfo, tree, NULL, "Returned");
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* AddPrinterDriver
*/
static int SpoolssAddPrinterDriver_q(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"AddPrinterDriver request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssAddPrinterDriver_r(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
"AddPrinterDriver response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
/*
* AddForm
*/
static int SpoolssAddForm_r(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "AddForm response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
offset = prs_werror(tvb, offset, pinfo, tree, NULL);
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
#if 0
/* Templates for new subdissectors */
/*
* FOO
*/
static int SpoolssFoo_q(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "Foo request");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
if (request_info)
add_request_text(tree, tvb, offset, request_info);
else
store_request_info_none(pinfo, di);
/* Parse packet */
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
static int SpoolssFoo_r(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, char *drep)
{
dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
request_hash_value *request_info;
/* Update informational fields */
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO, "Foo response");
request_info = fetch_request_info(pinfo, di, SPOOLSS_DUMMY);
add_response_text(tree, tvb, offset, request_info);
if (request_info)
request_info->response_num = pinfo->fd->num;
/* Parse packet */
if (tvb_length_remaining(tvb, offset) != 0)
proto_tree_add_text(tree, tvb, offset, 0,
"[Long frame (%d bytes): SPOOLSS]",
tvb_length_remaining(tvb, offset));
return offset;
}
#endif
/*
* List of subdissectors for this pipe.
*/
static dcerpc_sub_dissector dcerpc_spoolss_dissectors[] = {
{ SPOOLSS_ENUMPRINTERS, "SPOOLSS_ENUMPRINTERS",
SpoolssEnumPrinters_q, SpoolssEnumPrinters_r },
{ SPOOLSS_OPENPRINTER, "SPOOLSS_OPENPRINTER", NULL, NULL },
{ SPOOLSS_SETJOB, "SPOOLSS_SETJOB", NULL, NULL },
{ SPOOLSS_GETJOB, "SPOOLSS_GETJOB", NULL, NULL },
{ SPOOLSS_ENUMJOBS, "SPOOLSS_ENUMJOBS", NULL, NULL },
{ SPOOLSS_ADDPRINTER, "SPOOLSS_ADDPRINTER", NULL, NULL },
{ SPOOLSS_DELETEPRINTER, "SPOOLSS_DELETEPRINTER",
SpoolssDeletePrinter_q, SpoolssDeletePrinter_r },
{ SPOOLSS_SETPRINTER, "SPOOLSS_SETPRINTER",
SpoolssSetPrinter_q, SpoolssSetPrinter_r },
{ SPOOLSS_GETPRINTER, "SPOOLSS_GETPRINTER",
SpoolssGetPrinter_q, SpoolssGetPrinter_r },
{ SPOOLSS_ADDPRINTERDRIVER, "SPOOLSS_ADDPRINTERDRIVER",
NULL, SpoolssAddPrinterDriver_r },
{ SPOOLSS_ENUMPRINTERDRIVERS, "SPOOLSS_ENUMPRINTERDRIVERS", NULL, NULL },
{ SPOOLSS_GETPRINTERDRIVER, "SPOOLSS_GETPRINTERDRIVER", NULL, NULL },
{ SPOOLSS_GETPRINTERDRIVERDIRECTORY, "SPOOLSS_GETPRINTERDRIVERDIRECTORY", NULL, NULL },
{ SPOOLSS_DELETEPRINTERDRIVER, "SPOOLSS_DELETEPRINTERDRIVER", NULL, NULL },
{ SPOOLSS_ADDPRINTPROCESSOR, "SPOOLSS_ADDPRINTPROCESSOR", NULL, NULL },
{ SPOOLSS_ENUMPRINTPROCESSORS, "SPOOLSS_ENUMPRINTPROCESSORS", NULL, NULL },
{ SPOOLSS_GETPRINTPROCESSORDIRECTORY,"SPOOLSS_GETPRINTPROCESSORDIRECTORY", NULL, NULL },
{ SPOOLSS_STARTDOCPRINTER, "SPOOLSS_STARTDOCPRINTER", NULL, NULL },
{ SPOOLSS_STARTPAGEPRINTER, "SPOOLSS_STARTPAGEPRINTER", NULL, NULL },
{ SPOOLSS_WRITEPRINTER, "SPOOLSS_WRITEPRINTER", NULL, NULL },
{ SPOOLSS_ENDPAGEPRINTER, "SPOOLSS_ENDPAGEPRINTER", NULL, NULL },
{ SPOOLSS_ABORTPRINTER, "SPOOLSS_ABORTPRINTER", NULL, NULL },
{ SPOOLSS_READPRINTER,"SPOOLSS_READPRINTER", NULL, NULL },
{ SPOOLSS_ENDDOCPRINTER, "SPOOLSS_ENDDOCPRINTER", NULL, NULL },
{ SPOOLSS_ADDJOB, "SPOOLSS_ADDJOB", NULL, NULL },
{ SPOOLSS_SCHEDULEJOB, "SPOOLSS_SCHEDULEJOB", NULL, NULL },
{ SPOOLSS_GETPRINTERDATA, "SPOOLSS_GETPRINTERDATA",
SpoolssGetPrinterData_q, SpoolssGetPrinterData_r },
{ SPOOLSS_SETPRINTERDATA, "SPOOLSS_SETPRINTERDATA",
SpoolssSetPrinterData_q, SpoolssSetPrinterData_r },
{ SPOOLSS_WAITFORPRINTERCHANGE,"SPOOLSS_WAITFORPRINTERCHANGE", NULL, NULL },
{ SPOOLSS_CLOSEPRINTER, "SPOOLSS_CLOSEPRINTER",
SpoolssClosePrinter_q, SpoolssClosePrinter_r },
{ SPOOLSS_ADDFORM, "SPOOLSS_ADDFORM",
NULL, SpoolssAddForm_r },
{ SPOOLSS_DELETEFORM, "SPOOLSS_DELETEFORM", NULL, NULL },
{ SPOOLSS_GETFORM, "SPOOLSS_GETFORM", NULL, NULL },
{ SPOOLSS_SETFORM, "SPOOLSS_SETFORM", NULL, NULL },
{ SPOOLSS_ENUMFORMS, "SPOOLSS_ENUMFORMS",
SpoolssEnumForms_q, SpoolssEnumForms_r },
{ SPOOLSS_ENUMPORTS, "SPOOLSS_ENUMPORTS", NULL, NULL },
{ SPOOLSS_ENUMMONITORS, "SPOOLSS_ENUMMONITORS", NULL, NULL },
{ SPOOLSS_ADDPORT,"SPOOLSS_ADDPORT", NULL, NULL },
{ SPOOLSS_CONFIGUREPORT,"SPOOLSS_CONFIGUREPORT", NULL, NULL },
{ SPOOLSS_DELETEPORT,"SPOOLSS_DELETEPORT", NULL, NULL },
{ SPOOLSS_CREATEPRINTERIC,"SPOOLSS_CREATEPRINTERIC", NULL, NULL },
{ SPOOLSS_PLAYGDISCRIPTONPRINTERIC,"SPOOLSS_PLAYGDISCRIPTONPRINTERIC", NULL, NULL },
{ SPOOLSS_DELETEPRINTERIC,"SPOOLSS_DELETEPRINTERIC", NULL, NULL },
{ SPOOLSS_ADDPRINTERCONNECTION,"SPOOLSS_ADDPRINTERCONNECTION", NULL, NULL },
{ SPOOLSS_DELETEPRINTERCONNECTION,"SPOOLSS_DELETEPRINTERCONNECTION", NULL, NULL },
{ SPOOLSS_PRINTERMESSAGEBOX,"SPOOLSS_PRINTERMESSAGEBOX", NULL, NULL },
{ SPOOLSS_ADDMONITOR,"SPOOLSS_ADDMONITOR", NULL, NULL },
{ SPOOLSS_DELETEMONITOR,"SPOOLSS_DELETEMONITOR", NULL, NULL },
{ SPOOLSS_DELETEPRINTPROCESSOR,"SPOOLSS_DELETEPRINTPROCESSOR", NULL, NULL },
{ SPOOLSS_ADDPRINTPROVIDOR,"SPOOLSS_ADDPRINTPROVIDER", NULL, NULL },
{ SPOOLSS_DELETEPRINTPROVIDOR,"SPOOLSS_DELETEPRINTPROVIDER", NULL, NULL },
{ SPOOLSS_ENUMPRINTPROCDATATYPES, "SPOOLSS_ENUMPRINTPROCDATATYPES", NULL, NULL },
{ SPOOLSS_RESETPRINTER,"SPOOLSS_RESETPRINTER", NULL, NULL },
{ SPOOLSS_GETPRINTERDRIVER2, "SPOOLSS_GETPRINTERDRIVER2", NULL, NULL },
{ SPOOLSS_FINDFIRSTPRINTERCHANGENOTIFICATION,"SPOOLSS_FINDFIRSTPRINTERCHANGENOTIFICATION", NULL, NULL },
{ SPOOLSS_FINDNEXTPRINTERCHANGENOTIFICATION,"SPOOLSS_FINDNEXTPRINTERCHANGENOTIFICATION", NULL, NULL },
{ SPOOLSS_FCPN, "SPOOLSS_FCPN", NULL, NULL },
{ SPOOLSS_ROUTERFINDFIRSTPRINTERNOTIFICATIONOLD,"SPOOLSS_ROUTERFINDFIRSTPRINTERNOTIFICATIONOLD", NULL, NULL },
{ SPOOLSS_REPLYOPENPRINTER, "SPOOLSS_REPLYOPENPRINTER",
SpoolssReplyOpenPrinter_q, SpoolssReplyOpenPrinter_r },
{ SPOOLSS_ROUTERREPLYPRINTER,"SPOOLSS_ROUTERREPLYPRINTER", NULL, NULL },
{ SPOOLSS_REPLYCLOSEPRINTER, "SPOOLSS_REPLYCLOSEPRINTER", NULL, NULL },
{ SPOOLSS_ADDPORTEX,"SPOOLSS_ADDPORTEX", NULL, NULL },
{ SPOOLSS_REMOTEFINDFIRSTPRINTERCHANGENOTIFICATION,"SPOOLSS_REMOTEFINDFIRSTPRINTERCHANGENOTIFICATION", NULL, NULL },
{ SPOOLSS_SPOOLERINIT,"SPOOLSS_SPOOLERINIT", NULL, NULL },
{ SPOOLSS_RESETPRINTEREX,"SPOOLSS_RESETPRINTEREX", NULL, NULL },
{ SPOOLSS_RFFPCNEX, "SPOOLSS_RFFPCNEX",
SpoolssRFFPCNEX_q, SpoolssRFFPCNEX_r },
{ SPOOLSS_RRPCN, "SPOOLSS_RRPCN", NULL, NULL },
{ SPOOLSS_RFNPCNEX, "SPOOLSS_RFNPCNEX", NULL, NULL },
{ SPOOLSS_OPENPRINTEREX, "SPOOLSS_OPENPRINTEREX",
SpoolssOpenPrinterEx_q, SpoolssOpenPrinterEx_r },
{ SPOOLSS_ADDPRINTEREX, "SPOOLSS_ADDPRINTEREX",
NULL, SpoolssAddPrinterEx_r },
{ SPOOLSS_ENUMPRINTERDATA, "SPOOLSS_ENUMPRINTERDATA",
SpoolssEnumPrinterData_q, SpoolssEnumPrinterData_r },
{ SPOOLSS_DELETEPRINTERDATA, "SPOOLSS_DELETEPRINTERDATA", NULL, NULL },
{ SPOOLSS_GETPRINTERDATAEX, "SPOOLSS_GETPRINTERDATAEX",
SpoolssGetPrinterDataEx_q, SpoolssGetPrinterDataEx_r },
{ SPOOLSS_SETPRINTERDATAEX, "SPOOLSS_SETPRINTERDATAEX",
SpoolssSetPrinterDataEx_q, SpoolssSetPrinterDataEx_r },
{ SPOOLSS_ENUMPRINTERDATAEX,"SPOOLSS_ENUMPRINTERDATAEX", NULL, NULL },
{ SPOOLSS_ENUMPRINTERKEY,"SPOOLSS_ENUMPRINTERKEY", NULL, NULL },
{ SPOOLSS_DELETEPRINTERDATAEX,"SPOOLSS_DELETEPRINTERDATAEX", NULL, NULL },
{ SPOOLSS_DELETEPRINTERDRIVEREX,"SPOOLSS_DELETEPRINTERDRIVEREX", NULL, NULL },
{ SPOOLSS_ADDPRINTERDRIVEREX,"SPOOLSS_ADDPRINTERDRIVEREX", NULL, NULL },
{0, NULL, NULL, NULL },
};
/*
* Dissector initialisation function
*/
static void spoolss_init(void)
{
/* Initialise policy handle to printer name hash table */
if (policy_hnd_hash_key_chunk)
g_mem_chunk_destroy(policy_hnd_hash_key_chunk);
if (policy_hnd_hash_value_chunk)
g_mem_chunk_destroy(policy_hnd_hash_value_chunk);
policy_hnd_hash_key_chunk = g_mem_chunk_new(
"policy_hnd_hash_key_chunk", sizeof(policy_hnd_hash_key),
POLICY_HND_HASH_INIT_COUNT * sizeof(policy_hnd_hash_key),
G_ALLOC_ONLY);
policy_hnd_hash_value_chunk = g_mem_chunk_new(
"policy_hnd_hash_value_chunk", sizeof(policy_hnd_hash_value),
POLICY_HND_HASH_INIT_COUNT * sizeof(policy_hnd_hash_value),
G_ALLOC_ONLY);
policy_hnd_hash = g_hash_table_new(hash_policy_hnd,
compare_policy_hnd);
/* Initialise request/response matching hash table */
if (request_hash_key_chunk)
g_mem_chunk_destroy(request_hash_key_chunk);
request_hash_key_chunk = g_mem_chunk_new(
"request_hash_key_chunk", sizeof(request_hash_key),
REQUEST_HASH_INIT_COUNT * sizeof(request_hash_key),
G_ALLOC_ONLY);
request_hash_value_chunk = g_mem_chunk_new(
"request_hash_value_chunk", sizeof(request_hash_value),
REQUEST_HASH_INIT_COUNT * sizeof(request_hash_value),
G_ALLOC_ONLY);
request_hash = g_hash_table_new(hash_request, compare_request);
}
/* Protocol registration */
static int proto_dcerpc_spoolss = -1;
static gint ett_dcerpc_spoolss = -1;
void
proto_register_dcerpc_spoolss(void)
{
static gint *ett[] = {
&ett_dcerpc_spoolss,
&ett_NOTIFY_OPTION_ARRAY,
&ett_NOTIFY_OPTION_CTR,
&ett_NOTIFY_OPTION,
&ett_NOTIFY_OPTION_DATA,
&ett_PRINTER_DEFAULT,
&ett_DEVMODE_CTR,
&ett_DEVMODE,
&ett_USER_LEVEL,
&ett_USER_LEVEL_1,
&ett_BUFFER,
&ett_BUFFER_DATA,
&ett_BUFFER_DATA_BUFFER,
&ett_UNISTR2,
&ett_SPOOL_PRINTER_INFO_LEVEL,
&ett_PRINTER_INFO_0,
&ett_PRINTER_INFO_1,
&ett_PRINTER_INFO_2,
&ett_PRINTER_INFO_3,
&ett_RELSTR,
};
proto_dcerpc_spoolss = proto_register_protocol(
"Microsoft Spool Subsystem", "SPOOLSS", "spoolss");
proto_register_subtree_array(ett, array_length(ett));
register_init_routine(spoolss_init);
}
/* Protocol handoff */
static e_uuid_t uuid_dcerpc_spoolss = {
0x12345678, 0x1234, 0xabcd,
{ 0xef, 0x00, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab }
};
static guint16 ver_dcerpc_spoolss = 1;
void
proto_reg_handoff_dcerpc_spoolss(void)
{
/* Register protocol as dcerpc */
dcerpc_init_uuid(proto_dcerpc_spoolss, ett_dcerpc_spoolss,
&uuid_dcerpc_spoolss, ver_dcerpc_spoolss,
dcerpc_spoolss_dissectors);
}