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Move our NTLMSSP code into easily seperated peices, not relying on the whole

Browse Source 
of libsmb.

Andrew Bartlett
This commit is contained in:
Andrew Bartlett -
parent 5492fc1144
commit b5ec7efa80
4 changed files with 353 additions and 327 deletions
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12
source/Makefile.in
View File

@ -186,18 +186,22 @@ LIBADS_SERVER_OBJ = libads/util.o libads/kerberos_verify.o
SECRETS_OBJ = passdb/secrets.o
LIBNTLMSSP_OBJ = libsmb/ntlmssp.o libsmb/ntlmssp_parse.o
LIBSAMBA_OBJ = libsmb/nterr.o
LIBSMB_OBJ = libsmb/clientgen.o libsmb/cliconnect.o libsmb/clifile.o \
libsmb/clikrb5.o libsmb/clispnego.o libsmb/asn1.o \
libsmb/clirap.o libsmb/clierror.o libsmb/climessage.o \
libsmb/clireadwrite.o libsmb/clilist.o libsmb/cliprint.o \
libsmb/clitrans.o libsmb/clisecdesc.o libsmb/clidgram.o \
libsmb/namequery.o libsmb/nmblib.o libsmb/clistr.o \
libsmb/nterr.o libsmb/smbdes.o libsmb/smbencrypt.o \
libsmb/smbdes.o libsmb/smbencrypt.o \
libsmb/smberr.o libsmb/credentials.o libsmb/pwd_cache.o \
libsmb/clioplock.o libsmb/errormap.o libsmb/clirap2.o \
libsmb/passchange.o libsmb/unexpected.o libsmb/doserr.o \
libsmb/namecache.o libsmb/trustdom_cache.o libsmb/ntlmssp.o \
$(RPC_PARSE_OBJ1)
libsmb/namecache.o libsmb/trustdom_cache.o \
$(RPC_PARSE_OBJ1) $(LIBNTLMSSP_OBJ) $(LIBSAMBA_OBJ)
LIBMSRPC_OBJ = rpc_client/cli_lsarpc.o rpc_client/cli_samr.o \
rpc_client/cli_netlogon.o rpc_client/cli_srvsvc.o \
@ -594,7 +598,7 @@ POPT_OBJS=popt/findme.o popt/popt.o popt/poptconfig.o \
TDBBACKUP_OBJ = tdb/tdbbackup.o $(TDBBASE_OBJ)
NTLM_AUTH_OBJ = utils/ntlm_auth.o $(LIBSMB_OBJ) $(POPT_LIB_OBJ)
NTLM_AUTH_OBJ = utils/ntlm_auth.o $(LIBNTLMSSP_OBJ) $(LIBSAMBA_OBJ) $(POPT_LIB_OBJ)
######################################################################
# now the rules...

322
source/libsmb/clispnego.c
View File

@ -478,325 +478,3 @@ DATA_BLOB spnego_gen_auth_response(DATA_BLOB *ntlmssp_reply, NTSTATUS nt_status)
asn1_free(&data);
return ret;
}
/*
this is a tiny msrpc packet generator. I am only using this to
avoid tying this code to a particular varient of our rpc code. This
generator is not general enough for all our rpc needs, its just
enough for the spnego/ntlmssp code
format specifiers are:
U = unicode string (input is unix string)
a = address (input is BOOL unicode, char *unix_string)
(1 byte type, 1 byte length, unicode/ASCII string, all inline)
A = ASCII string (input is unix string)
B = data blob (pointer + length)
b = data blob in header (pointer + length)
D
d = word (4 bytes)
C = constant ascii string
*/
BOOL msrpc_gen(DATA_BLOB *blob,
const char *format, ...)
{
int i, n;
va_list ap;
char *s;
uint8 *b;
int head_size=0, data_size=0;
int head_ofs, data_ofs;
BOOL unicode;
/* first scan the format to work out the header and body size */
va_start(ap, format);
for (i=0; format[i]; i++) {
switch (format[i]) {
case 'U':
s = va_arg(ap, char *);
head_size += 8;
data_size += str_charnum(s) * 2;
break;
case 'A':
s = va_arg(ap, char *);
head_size += 8;
data_size += str_ascii_charnum(s);
break;
case 'a':
unicode = va_arg(ap, BOOL);
n = va_arg(ap, int);
s = va_arg(ap, char *);
if (unicode) {
data_size += (str_charnum(s) * 2) + 4;
} else {
data_size += (str_ascii_charnum(s)) + 4;
}
break;
case 'B':
b = va_arg(ap, uint8 *);
head_size += 8;
data_size += va_arg(ap, int);
break;
case 'b':
b = va_arg(ap, uint8 *);
head_size += va_arg(ap, int);
break;
case 'd':
n = va_arg(ap, int);
head_size += 4;
break;
case 'C':
s = va_arg(ap, char *);
head_size += str_charnum(s) + 1;
break;
}
}
va_end(ap);
/* allocate the space, then scan the format again to fill in the values */
*blob = data_blob(NULL, head_size + data_size);
head_ofs = 0;
data_ofs = head_size;
va_start(ap, format);
for (i=0; format[i]; i++) {
switch (format[i]) {
case 'U':
s = va_arg(ap, char *);
n = str_charnum(s);
SSVAL(blob->data, head_ofs, n*2); head_ofs += 2;
SSVAL(blob->data, head_ofs, n*2); head_ofs += 2;
SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
push_string(NULL, blob->data+data_ofs, s, n*2, STR_UNICODE|STR_NOALIGN);
data_ofs += n*2;
break;
case 'A':
s = va_arg(ap, char *);
n = str_ascii_charnum(s);
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
push_string(NULL, blob->data+data_ofs, s, n, STR_ASCII|STR_NOALIGN);
data_ofs += n;
break;
case 'a':
unicode = va_arg(ap, BOOL);
n = va_arg(ap, int);
SSVAL(blob->data, data_ofs, n); data_ofs += 2;
s = va_arg(ap, char *);
if (unicode) {
n = str_charnum(s);
SSVAL(blob->data, data_ofs, n*2); data_ofs += 2;
if (0 < n) {
push_string(NULL, blob->data+data_ofs, s, n*2,
STR_UNICODE|STR_NOALIGN);
}
data_ofs += n*2;
} else {
n = str_ascii_charnum(s);
SSVAL(blob->data, data_ofs, n); data_ofs += 2;
if (0 < n) {
push_string(NULL, blob->data+data_ofs, s, n,
STR_ASCII|STR_NOALIGN);
}
data_ofs += n;
}
break;
case 'B':
b = va_arg(ap, uint8 *);
n = va_arg(ap, int);
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
memcpy(blob->data+data_ofs, b, n);
data_ofs += n;
break;
case 'd':
n = va_arg(ap, int);
SIVAL(blob->data, head_ofs, n); head_ofs += 4;
break;
case 'b':
b = va_arg(ap, uint8 *);
n = va_arg(ap, int);
memcpy(blob->data + head_ofs, b, n);
head_ofs += n;
break;
case 'C':
s = va_arg(ap, char *);
head_ofs += push_string(NULL, blob->data+head_ofs, s, -1,
STR_ASCII|STR_TERMINATE);
break;
}
}
va_end(ap);
return True;
}
/* a helpful macro to avoid running over the end of our blob */
#define NEED_DATA(amount) \
if (head_ofs + amount > blob->length) { \
return False; \
}
/*
this is a tiny msrpc packet parser. This the the partner of msrpc_gen
format specifiers are:
U = unicode string (output is unix string)
A = ascii string
B = data blob
b = data blob in header
d = word (4 bytes)
C = constant ascii string
*/
BOOL msrpc_parse(DATA_BLOB *blob,
const char *format, ...)
{
int i;
va_list ap;
char **ps, *s;
DATA_BLOB *b;
int head_ofs = 0;
uint16 len1, len2;
uint32 ptr;
uint32 *v;
pstring p;
va_start(ap, format);
for (i=0; format[i]; i++) {
switch (format[i]) {
case 'U':
NEED_DATA(8);
len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
/* make sure its in the right format - be strict */
if (len1 != len2 || ptr + len1 > blob->length) {
return False;
}
if (len1 & 1) {
/* if odd length and unicode */
return False;
}
ps = va_arg(ap, char **);
if (0 < len1) {
pull_string(NULL, p, blob->data + ptr, sizeof(p),
len1,
STR_UNICODE|STR_NOALIGN);
(*ps) = strdup(p);
} else {
(*ps) = NULL;
}
break;
case 'A':
NEED_DATA(8);
len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
/* make sure its in the right format - be strict */
if (len1 != len2 || ptr + len1 > blob->length) {
return False;
}
ps = va_arg(ap, char **);
if (0 < len1) {
pull_string(NULL, p, blob->data + ptr, sizeof(p),
len1,
STR_ASCII|STR_NOALIGN);
(*ps) = strdup(p);
} else {
(*ps) = NULL;
}
break;
case 'B':
NEED_DATA(8);
len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
/* make sure its in the right format - be strict */
if (len1 != len2 || ptr + len1 > blob->length) {
return False;
}
b = (DATA_BLOB *)va_arg(ap, void *);
*b = data_blob(blob->data + ptr, len1);
break;
case 'b':
b = (DATA_BLOB *)va_arg(ap, void *);
len1 = va_arg(ap, unsigned);
/* make sure its in the right format - be strict */
NEED_DATA(len1);
*b = data_blob(blob->data + head_ofs, len1);
head_ofs += len1;
break;
case 'd':
v = va_arg(ap, uint32 *);
NEED_DATA(4);
*v = IVAL(blob->data, head_ofs); head_ofs += 4;
break;
case 'C':
s = va_arg(ap, char *);
head_ofs += pull_string(NULL, p, blob->data+head_ofs, sizeof(p),
blob->length - head_ofs,
STR_ASCII|STR_TERMINATE);
if (strcmp(s, p) != 0) {
return False;
}
break;
}
}
va_end(ap);
return True;
}
/**
* Print out the NTLMSSP flags for debugging
*/
void debug_ntlmssp_flags(uint32 neg_flags)
{
DEBUG(3,("Got NTLMSSP neg_flags=0x%08x\n", neg_flags));
if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_UNICODE\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_OEM)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM\n"));
if (neg_flags & NTLMSSP_REQUEST_TARGET)
DEBUGADD(4, (" NTLMSSP_REQUEST_TARGET\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_SIGN)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SIGN\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_SEAL)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SEAL\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_LM_KEY\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NETWARE)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NETWARE\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NTLM)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_ALWAYS_SIGN\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM2\n"));
if (neg_flags & NTLMSSP_CHAL_TARGET_INFO)
DEBUGADD(4, (" NTLMSSP_CHAL_TARGET_INFO\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_128)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_128\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_KEY_EXCH\n"));
}

43
source/libsmb/ntlmssp.c
View File

@ -23,12 +23,53 @@
#include "includes.h"
/**
* Print out the NTLMSSP flags for debugging
*/
void debug_ntlmssp_flags(uint32 neg_flags)
{
DEBUG(3,("Got NTLMSSP neg_flags=0x%08x\n", neg_flags));
if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_UNICODE\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_OEM)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM\n"));
if (neg_flags & NTLMSSP_REQUEST_TARGET)
DEBUGADD(4, (" NTLMSSP_REQUEST_TARGET\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_SIGN)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SIGN\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_SEAL)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SEAL\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_LM_KEY\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NETWARE)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NETWARE\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NTLM)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_ALWAYS_SIGN\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM2\n"));
if (neg_flags & NTLMSSP_CHAL_TARGET_INFO)
DEBUGADD(4, (" NTLMSSP_CHAL_TARGET_INFO\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_128)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_128\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_KEY_EXCH\n"));
}
/**
* Default challenge generation code.
*
*/
static const uint8 *get_challenge(struct ntlmssp_state *ntlmssp_state)
{
static uchar chal[8];

303
source/libsmb/ntlmssp_parse.c Normal file
View File

@ -0,0 +1,303 @@
/*
Unix SMB/CIFS implementation.
simple kerberos5/SPNEGO routines
Copyright (C) Andrew Tridgell 2001
Copyright (C) Jim McDonough 2002
Copyright (C) Andrew Bartlett 2002-2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
/*
this is a tiny msrpc packet generator. I am only using this to
avoid tying this code to a particular varient of our rpc code. This
generator is not general enough for all our rpc needs, its just
enough for the spnego/ntlmssp code
format specifiers are:
U = unicode string (input is unix string)
a = address (input is BOOL unicode, char *unix_string)
(1 byte type, 1 byte length, unicode/ASCII string, all inline)
A = ASCII string (input is unix string)
B = data blob (pointer + length)
b = data blob in header (pointer + length)
D
d = word (4 bytes)
C = constant ascii string
*/
BOOL msrpc_gen(DATA_BLOB *blob,
const char *format, ...)
{
int i, n;
va_list ap;
char *s;
uint8 *b;
int head_size=0, data_size=0;
int head_ofs, data_ofs;
BOOL unicode;
/* first scan the format to work out the header and body size */
va_start(ap, format);
for (i=0; format[i]; i++) {
switch (format[i]) {
case 'U':
s = va_arg(ap, char *);
head_size += 8;
data_size += str_charnum(s) * 2;
break;
case 'A':
s = va_arg(ap, char *);
head_size += 8;
data_size += str_ascii_charnum(s);
break;
case 'a':
unicode = va_arg(ap, BOOL);
n = va_arg(ap, int);
s = va_arg(ap, char *);
if (unicode) {
data_size += (str_charnum(s) * 2) + 4;
} else {
data_size += (str_ascii_charnum(s)) + 4;
}
break;
case 'B':
b = va_arg(ap, uint8 *);
head_size += 8;
data_size += va_arg(ap, int);
break;
case 'b':
b = va_arg(ap, uint8 *);
head_size += va_arg(ap, int);
break;
case 'd':
n = va_arg(ap, int);
head_size += 4;
break;
case 'C':
s = va_arg(ap, char *);
head_size += str_charnum(s) + 1;
break;
}
}
va_end(ap);
/* allocate the space, then scan the format again to fill in the values */
*blob = data_blob(NULL, head_size + data_size);
head_ofs = 0;
data_ofs = head_size;
va_start(ap, format);
for (i=0; format[i]; i++) {
switch (format[i]) {
case 'U':
s = va_arg(ap, char *);
n = str_charnum(s);
SSVAL(blob->data, head_ofs, n*2); head_ofs += 2;
SSVAL(blob->data, head_ofs, n*2); head_ofs += 2;
SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
push_string(NULL, blob->data+data_ofs, s, n*2, STR_UNICODE|STR_NOALIGN);
data_ofs += n*2;
break;
case 'A':
s = va_arg(ap, char *);
n = str_ascii_charnum(s);
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
push_string(NULL, blob->data+data_ofs, s, n, STR_ASCII|STR_NOALIGN);
data_ofs += n;
break;
case 'a':
unicode = va_arg(ap, BOOL);
n = va_arg(ap, int);
SSVAL(blob->data, data_ofs, n); data_ofs += 2;
s = va_arg(ap, char *);
if (unicode) {
n = str_charnum(s);
SSVAL(blob->data, data_ofs, n*2); data_ofs += 2;
if (0 < n) {
push_string(NULL, blob->data+data_ofs, s, n*2,
STR_UNICODE|STR_NOALIGN);
}
data_ofs += n*2;
} else {
n = str_ascii_charnum(s);
SSVAL(blob->data, data_ofs, n); data_ofs += 2;
if (0 < n) {
push_string(NULL, blob->data+data_ofs, s, n,
STR_ASCII|STR_NOALIGN);
}
data_ofs += n;
}
break;
case 'B':
b = va_arg(ap, uint8 *);
n = va_arg(ap, int);
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SSVAL(blob->data, head_ofs, n); head_ofs += 2;
SIVAL(blob->data, head_ofs, data_ofs); head_ofs += 4;
memcpy(blob->data+data_ofs, b, n);
data_ofs += n;
break;
case 'd':
n = va_arg(ap, int);
SIVAL(blob->data, head_ofs, n); head_ofs += 4;
break;
case 'b':
b = va_arg(ap, uint8 *);
n = va_arg(ap, int);
memcpy(blob->data + head_ofs, b, n);
head_ofs += n;
break;
case 'C':
s = va_arg(ap, char *);
head_ofs += push_string(NULL, blob->data+head_ofs, s, -1,
STR_ASCII|STR_TERMINATE);
break;
}
}
va_end(ap);
return True;
}
/* a helpful macro to avoid running over the end of our blob */
#define NEED_DATA(amount) \
if (head_ofs + amount > blob->length) { \
return False; \
}
/*
this is a tiny msrpc packet parser. This the the partner of msrpc_gen
format specifiers are:
U = unicode string (output is unix string)
A = ascii string
B = data blob
b = data blob in header
d = word (4 bytes)
C = constant ascii string
*/
BOOL msrpc_parse(DATA_BLOB *blob,
const char *format, ...)
{
int i;
va_list ap;
char **ps, *s;
DATA_BLOB *b;
int head_ofs = 0;
uint16 len1, len2;
uint32 ptr;
uint32 *v;
pstring p;
va_start(ap, format);
for (i=0; format[i]; i++) {
switch (format[i]) {
case 'U':
NEED_DATA(8);
len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
/* make sure its in the right format - be strict */
if (len1 != len2 || ptr + len1 > blob->length) {
return False;
}
if (len1 & 1) {
/* if odd length and unicode */
return False;
}
ps = va_arg(ap, char **);
if (0 < len1) {
pull_string(NULL, p, blob->data + ptr, sizeof(p),
len1,
STR_UNICODE|STR_NOALIGN);
(*ps) = strdup(p);
} else {
(*ps) = NULL;
}
break;
case 'A':
NEED_DATA(8);
len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
/* make sure its in the right format - be strict */
if (len1 != len2 || ptr + len1 > blob->length) {
return False;
}
ps = va_arg(ap, char **);
if (0 < len1) {
pull_string(NULL, p, blob->data + ptr, sizeof(p),
len1,
STR_ASCII|STR_NOALIGN);
(*ps) = strdup(p);
} else {
(*ps) = NULL;
}
break;
case 'B':
NEED_DATA(8);
len1 = SVAL(blob->data, head_ofs); head_ofs += 2;
len2 = SVAL(blob->data, head_ofs); head_ofs += 2;
ptr = IVAL(blob->data, head_ofs); head_ofs += 4;
/* make sure its in the right format - be strict */
if (len1 != len2 || ptr + len1 > blob->length) {
return False;
}
b = (DATA_BLOB *)va_arg(ap, void *);
*b = data_blob(blob->data + ptr, len1);
break;
case 'b':
b = (DATA_BLOB *)va_arg(ap, void *);
len1 = va_arg(ap, unsigned);
/* make sure its in the right format - be strict */
NEED_DATA(len1);
*b = data_blob(blob->data + head_ofs, len1);
head_ofs += len1;
break;
case 'd':
v = va_arg(ap, uint32 *);
NEED_DATA(4);
*v = IVAL(blob->data, head_ofs); head_ofs += 4;
break;
case 'C':
s = va_arg(ap, char *);
head_ofs += pull_string(NULL, p, blob->data+head_ofs, sizeof(p),
blob->length - head_ofs,
STR_ASCII|STR_TERMINATE);
if (strcmp(s, p) != 0) {
return False;
}
break;
}
}
va_end(ap);
return True;
}