示例#1
0
文件: parse_prs.c 项目: jophxy/samba
BOOL prs_unistr2(BOOL charmode, const char *name, prs_struct *ps, int depth, UNISTR2 *str)
{
	char *p;
	char *q = prs_mem_get(ps, str->uni_str_len * sizeof(uint16));
	if (q == NULL)
		return False;

	/* If the string is empty, we don't have anything to stream */
	if (str->uni_str_len==0)
		return True;

	if (UNMARSHALLING(ps)) {
		str->buffer = (uint16 *)prs_alloc_mem(ps,str->uni_max_len * sizeof(uint16));
		if (str->buffer == NULL)
			return False;
	}

	p = (char *)str->buffer;

	dbg_rw_punival(charmode, name, depth, ps, q, p, str->uni_str_len);
	
	ps->data_offset += (str->uni_str_len * sizeof(uint16));

	return True;
}
示例#2
0
文件: parse_prs.c 项目: jophxy/samba
BOOL prs_string2(BOOL charmode, const char *name, prs_struct *ps, int depth, STRING2 *str)
{
	int i;
	char *q = prs_mem_get(ps, str->str_max_len);
	if (q == NULL)
		return False;

	if (UNMARSHALLING(ps)) {
		str->buffer = (unsigned char *)prs_alloc_mem(ps,str->str_max_len);
		if (str->buffer == NULL)
			return False;
	}

	if (UNMARSHALLING(ps)) {
		for (i = 0; i < str->str_str_len; i++)
			str->buffer[i] = CVAL(q,i);
	} else {
		for (i = 0; i < str->str_str_len; i++)
			SCVAL(q, i, str->buffer[i]);
	}

    DEBUG(5,("%s%04x %s: ", tab_depth(depth), ps->data_offset, name));
    if (charmode)
		print_asc(5, (unsigned char*)str->buffer, str->str_str_len);
	else {
    	for (i = 0; i < str->str_str_len; i++)
			DEBUG(5,("%02x ", str->buffer[i]));
	}
    DEBUG(5,("\n"));

	ps->data_offset += str->str_str_len;

	return True;
}
示例#3
0
BOOL sec_io_desc_buf(const char *desc, SEC_DESC_BUF **ppsdb, prs_struct *ps, int depth)
{
	uint32 off_len;
	uint32 off_max_len;
	uint32 old_offset;
	uint32 size;
	SEC_DESC_BUF *psdb;

	if (ppsdb == NULL)
		return False;

	psdb = *ppsdb;

	if (UNMARSHALLING(ps) && psdb == NULL) {
		if((psdb = (SEC_DESC_BUF *)prs_alloc_mem(ps,sizeof(SEC_DESC_BUF))) == NULL)
			return False;
		*ppsdb = psdb;
	}

	prs_debug(ps, depth, desc, "sec_io_desc_buf");
	depth++;

	if(!prs_align(ps))
		return False;
	
	if(!prs_uint32_pre("max_len", ps, depth, &psdb->max_len, &off_max_len))
		return False;

	if(!prs_uint32    ("ptr  ", ps, depth, &psdb->ptr))
		return False;

	if(!prs_uint32_pre("len    ", ps, depth, &psdb->len, &off_len))
		return False;

	old_offset = prs_offset(ps);

	/* reading, length is non-zero; writing, descriptor is non-NULL */
	if ((UNMARSHALLING(ps) && psdb->len != 0) || (MARSHALLING(ps) && psdb->sec != NULL)) {
		if(!sec_io_desc("sec   ", &psdb->sec, ps, depth))
			return False;
	}

	if(!prs_align(ps))
		return False;
	
	size = prs_offset(ps) - old_offset;
	if(!prs_uint32_post("max_len", ps, depth, &psdb->max_len, off_max_len, size == 0 ? psdb->max_len : size))
		return False;

	if(!prs_uint32_post("len    ", ps, depth, &psdb->len, off_len, size))
		return False;

	return True;
}
示例#4
0
static BOOL ds_io_dominfobasic( const char *desc, prs_struct *ps, int depth, DSROLE_PRIMARY_DOMAIN_INFO_BASIC **basic)
{
	DSROLE_PRIMARY_DOMAIN_INFO_BASIC *p = *basic;
	
	if ( UNMARSHALLING(ps) )
		p = *basic = (DSROLE_PRIMARY_DOMAIN_INFO_BASIC *)prs_alloc_mem(ps, sizeof(DSROLE_PRIMARY_DOMAIN_INFO_BASIC));
		
	if ( !p )
		return False;
		
	if ( !prs_uint16("machine_role", ps, depth, &p->machine_role) )
		return False;
	if ( !prs_uint16("unknown", ps, depth, &p->unknown) )
		return False;

	if ( !prs_uint32("flags", ps, depth, &p->flags) )
		return False;

	if ( !prs_uint32("netbios_ptr", ps, depth, &p->netbios_ptr) )
		return False;
	if ( !prs_uint32("dnsname_ptr", ps, depth, &p->dnsname_ptr) )
		return False;
	if ( !prs_uint32("forestname_ptr", ps, depth, &p->forestname_ptr) )
		return False;
		
	if ( !prs_uint8s(False, "domain_guid", ps, depth, p->domain_guid.info, GUID_SIZE) )
		return False;
		
	if ( !smb_io_unistr2( "netbios_domain", &p->netbios_domain, p->netbios_ptr, ps, depth) )
		return False;
	if ( !prs_align(ps) )
		return False;
	
	if ( !smb_io_unistr2( "dns_domain", &p->dns_domain, p->dnsname_ptr, ps, depth) )
		return False;
	if ( !prs_align(ps) )
		return False;
	
	if ( !smb_io_unistr2( "forest_domain", &p->forest_domain, p->forestname_ptr, ps, depth) )
		return False;
	if ( !prs_align(ps) )
		return False;
	
		
	return True;
		
}
示例#5
0
文件: parse_prs.c 项目: jophxy/samba
BOOL prs_unistr3(BOOL charmode, const char *name, UNISTR3 *str, prs_struct *ps, int depth)
{
	char *p;
	char *q = prs_mem_get(ps, str->uni_str_len * sizeof(uint16));
	if (q == NULL)
		return False;

	if (UNMARSHALLING(ps)) {
		str->str.buffer = (uint16 *)prs_alloc_mem(ps,str->uni_str_len * sizeof(uint16));
		if (str->str.buffer == NULL)
			return False;
	}

	p = (char *)str->str.buffer;

	dbg_rw_punival(charmode, name, depth, ps, q, p, str->uni_str_len);
	ps->data_offset += (str->uni_str_len * sizeof(uint16));

	return True;
}
示例#6
0
文件: parse_prs.c 项目: jophxy/samba
BOOL prs_buffer2(BOOL charmode, const char *name, prs_struct *ps, int depth, BUFFER2 *str)
{
	char *p;
	char *q = prs_mem_get(ps, str->buf_len);
	if (q == NULL)
		return False;

	if (UNMARSHALLING(ps)) {
		str->buffer = (uint16 *)prs_alloc_mem(ps,str->buf_len);
		if (str->buffer == NULL)
			return False;
	}

	p = (char *)str->buffer;

	dbg_rw_punival(charmode, name, depth, ps, q, p, str->buf_len/2);
	ps->data_offset += str->buf_len;

	return True;
}
示例#7
0
BOOL dfs_io_dfs_storage_info(const char *desc, DFS_INFO_3* info3, prs_struct *ps, int depth)
{
	int i=0;
	if(info3 == NULL)
		return False;
  
	prs_debug(ps, depth, desc, "smb_io_dfs_storage_info");
	depth++;

	if(UNMARSHALLING(ps)) {
		info3->storages = (DFS_STORAGE_INFO *)prs_alloc_mem(ps, info3->num_storage_infos*sizeof(DFS_STORAGE_INFO));
		if (!info3->storages)
			return False;
	}

	for(i=0;i<info3->num_storage_infos;i++) {
		if(!prs_uint32("storage_state", ps, depth, &info3->storages[i].state))
			return False;
		if(!prs_uint32("ptr_servername", ps, depth, &info3->storages[i].ptr_servername))
			return False;
		if(!prs_uint32("ptr_sharename", ps, depth, &info3->storages[i].ptr_sharename))
			return False;
	}

	for(i=0;i<info3->num_storage_infos;i++) {
		if(!smb_io_unistr2("servername", &info3->storages[i].servername, info3->storages[i].ptr_servername, ps, depth))
			return False;
		if(!prs_align(ps))
			return False;
		if(!smb_io_unistr2("sharename", &info3->storages[i].sharename, info3->storages[i].ptr_sharename, ps, depth))
			return False;
		if(!prs_align(ps))
			return False;
	}

	return True;
}
示例#8
0
BOOL sec_io_desc(const char *desc, SEC_DESC **ppsd, prs_struct *ps, int depth)
{
	uint32 old_offset;
	uint32 max_offset = 0; /* after we're done, move offset to end */
	uint32 tmp_offset = 0;
	
	SEC_DESC *psd;

	if (ppsd == NULL)
		return False;

	psd = *ppsd;

	if (psd == NULL) {
		if(UNMARSHALLING(ps)) {
			if((psd = (SEC_DESC *)prs_alloc_mem(ps,sizeof(SEC_DESC))) == NULL)
				return False;
			*ppsd = psd;
		} else {
			/* Marshalling - just ignore. */
			return True;
		}
	}

	prs_debug(ps, depth, desc, "sec_io_desc");
	depth++;

#if 0	
	/*
	 * if alignment is needed, should be done by the the 
	 * caller.  Not here.  This caused me problems when marshalling
	 * printer info into a buffer.   --jerry
	 */
	if(!prs_align(ps))
		return False;
#endif
	
	/* start of security descriptor stored for back-calc offset purposes */
	old_offset = prs_offset(ps);

	if(!prs_uint16("revision ", ps, depth, &psd->revision))
		return False;

	if(!prs_uint16("type     ", ps, depth, &psd->type))
		return False;

	if(!prs_uint32("off_owner_sid", ps, depth, &psd->off_owner_sid))
		return False;

	if(!prs_uint32("off_grp_sid  ", ps, depth, &psd->off_grp_sid))
		return False;

	if(!prs_uint32("off_sacl     ", ps, depth, &psd->off_sacl))
		return False;

	if(!prs_uint32("off_dacl     ", ps, depth, &psd->off_dacl))
		return False;

	max_offset = MAX(max_offset, prs_offset(ps));

	if (psd->off_owner_sid != 0) {

		tmp_offset = prs_offset(ps);
		if(!prs_set_offset(ps, old_offset + psd->off_owner_sid))
			return False;

		if (UNMARSHALLING(ps)) {
			/* reading */
			if((psd->owner_sid = (DOM_SID *)prs_alloc_mem(ps,sizeof(*psd->owner_sid))) == NULL)
				return False;
		}

		if(!smb_io_dom_sid("owner_sid ", psd->owner_sid , ps, depth))
			return False;

		max_offset = MAX(max_offset, prs_offset(ps));

		if (!prs_set_offset(ps,tmp_offset))
			return False;
	}

	if (psd->off_grp_sid != 0) {

		tmp_offset = prs_offset(ps);
		if(!prs_set_offset(ps, old_offset + psd->off_grp_sid))
			return False;

		if (UNMARSHALLING(ps)) {
			/* reading */
			if((psd->grp_sid = (DOM_SID *)prs_alloc_mem(ps,sizeof(*psd->grp_sid))) == NULL)
				return False;
		}

		if(!smb_io_dom_sid("grp_sid", psd->grp_sid, ps, depth))
			return False;
			
		max_offset = MAX(max_offset, prs_offset(ps));

		if (!prs_set_offset(ps,tmp_offset))
			return False;
	}

	if ((psd->type & SEC_DESC_SACL_PRESENT) && psd->off_sacl) {
		tmp_offset = prs_offset(ps);
		if(!prs_set_offset(ps, old_offset + psd->off_sacl))
			return False;
		if(!sec_io_acl("sacl", &psd->sacl, ps, depth))
			return False;
		max_offset = MAX(max_offset, prs_offset(ps));
		if (!prs_set_offset(ps,tmp_offset))
			return False;
	}


	if ((psd->type & SEC_DESC_DACL_PRESENT) && psd->off_dacl != 0) {
		tmp_offset = prs_offset(ps);
		if(!prs_set_offset(ps, old_offset + psd->off_dacl))
			return False;
		if(!sec_io_acl("dacl", &psd->dacl, ps, depth))
			return False;
		max_offset = MAX(max_offset, prs_offset(ps));
		if (!prs_set_offset(ps,tmp_offset))
			return False;
	}

	if(!prs_set_offset(ps, max_offset))
		return False;
	return True;
}
示例#9
0
BOOL sec_io_acl(const char *desc, SEC_ACL **ppsa, prs_struct *ps, int depth)
{
	unsigned int i;
	uint32 old_offset;
	uint32 offset_acl_size;
	SEC_ACL *psa;

	/*
	 * Note that the size is always a multiple of 4 bytes due to the
	 * nature of the data structure.  Therefore the prs_align() calls
	 * have been removed as they through us off when doing two-layer
	 * marshalling such as in the printing code (NEW_BUFFER).  --jerry
	 */

	if (ppsa == NULL)
		return False;

	psa = *ppsa;

	if(UNMARSHALLING(ps) && psa == NULL) {
		/*
		 * This is a read and we must allocate the stuct to read into.
		 */
		if((psa = (SEC_ACL *)prs_alloc_mem(ps, sizeof(SEC_ACL))) == NULL)
			return False;
		*ppsa = psa;
	}

	prs_debug(ps, depth, desc, "sec_io_acl");
	depth++;
	
	old_offset = prs_offset(ps);

	if(!prs_uint16("revision", ps, depth, &psa->revision))
		return False;

	if(!prs_uint16_pre("size     ", ps, depth, &psa->size, &offset_acl_size))
		return False;

	if(!prs_uint32("num_aces ", ps, depth, &psa->num_aces))
		return False;

	if (UNMARSHALLING(ps)) {
		/*
		 * Even if the num_aces is zero, allocate memory as there's a difference
		 * between a non-present DACL (allow all access) and a DACL with no ACE's
		 * (allow no access).
		 */
		if((psa->ace = (SEC_ACE *)prs_alloc_mem(ps,sizeof(psa->ace[0]) * (psa->num_aces+1))) == NULL)
			return False;
	}

	for (i = 0; i < psa->num_aces; i++) {
		fstring tmp;
		slprintf(tmp, sizeof(tmp)-1, "ace_list[%02d]: ", i);
		if(!sec_io_ace(tmp, &psa->ace[i], ps, depth))
			return False;
	}

	if(!prs_uint16_post("size     ", ps, depth, &psa->size, offset_acl_size, old_offset))
		return False;

	return True;
}
示例#10
0
文件: parse_prs.c 项目: jophxy/samba
BOOL prs_unistr(const char *name, prs_struct *ps, int depth, UNISTR *str)
{
	int len = 0;
	unsigned char *p = (unsigned char *)str->buffer;
	uint8 *start;
	char *q;
	uint32 max_len;
	uint16* ptr;

	if (MARSHALLING(ps)) {

		for(len = 0; str->buffer[len] != 0; len++)
			;

		q = prs_mem_get(ps, (len+1)*2);
		if (q == NULL)
			return False;

		start = (uint8*)q;

		for(len = 0; str->buffer[len] != 0; len++) 
		{
			if(ps->bigendian_data) 
			{
				/* swap bytes - p is little endian, q is big endian. */
				q[0] = (char)p[1];
				q[1] = (char)p[0];
				p += 2;
				q += 2;
			} 
			else 
			{
				q[0] = (char)p[0];
				q[1] = (char)p[1];
				p += 2;
				q += 2;
			}
		}

		/*
		 * even if the string is 'empty' (only an \0 char)
		 * at this point the leading \0 hasn't been parsed.
		 * so parse it now
		 */

		q[0] = 0;
		q[1] = 0;
		q += 2;

		len++;

		dump_data(5+depth, (char *)start, len * 2);
	}
	else { /* unmarshalling */
	
		uint32 alloc_len = 0;
		q = prs_data_p(ps) + prs_offset(ps);

		/*
		 * Work out how much space we need and talloc it.
		 */
		max_len = (ps->buffer_size - ps->data_offset)/sizeof(uint16);

		/* the test of the value of *ptr helps to catch the circumstance
		   where we have an emtpty (non-existent) string in the buffer */
		for ( ptr = (uint16 *)q; *ptr && (alloc_len <= max_len); alloc_len++)
			/* do nothing */ 
			;

		/* should we allocate anything at all? */
		str->buffer = (uint16 *)prs_alloc_mem(ps,alloc_len * sizeof(uint16));
		if ((str->buffer == NULL) && (alloc_len > 0))
			return False;

		p = (unsigned char *)str->buffer;

		len = 0;
		/* the (len < alloc_len) test is to prevent us from overwriting
		   memory that is not ours...if we get that far, we have a non-null
		   terminated string in the buffer and have messed up somewhere */
		while ((len < alloc_len) && (*(uint16 *)q != 0))
		{
			if(ps->bigendian_data) 
			{
				/* swap bytes - q is big endian, p is little endian. */
				p[0] = (unsigned char)q[1];
				p[1] = (unsigned char)q[0];
				p += 2;
				q += 2;
			} else {

				p[0] = (unsigned char)q[0];
				p[1] = (unsigned char)q[1];
				p += 2;
				q += 2;
			}

			len++;
		} 
		if (len < alloc_len)
		{
			/* NULL terminate the UNISTR */
			str->buffer[len++] = '\0';
		}
	}

	/* set the offset in the prs_struct; 'len' points to the
	   terminiating NULL in the UNISTR so we need to go one more
	   uint16 */
	ps->data_offset += (len)*2;
	
	return True;
}
示例#11
0
BOOL dfs_io_dfs_info_ctr(const char *desc, DFS_INFO_CTR* ctr, uint32 num_entries, uint32 level, prs_struct* ps, int depth)
{
	int i=0;

	switch(level) {
	case 1:
		depth++;
		/* should depend on whether marshalling or unmarshalling! */
		if(UNMARSHALLING(ps)) {
			ctr->dfs.info1 = (DFS_INFO_1 *)prs_alloc_mem(ps, sizeof(DFS_INFO_1)*num_entries);
			if (!ctr->dfs.info1)
				return False;
		}

		for(i=0;i<num_entries;i++) {
			if(!prs_uint32("ptr_entrypath",ps, depth, &ctr->dfs.info1[i].ptr_entrypath))
				return False;
		}
		for(i=0;i<num_entries;i++) {
			if(!smb_io_unistr2("", &ctr->dfs.info1[i].entrypath, ctr->dfs.info1[i].ptr_entrypath, ps, depth))
				return False;
			if(!prs_align(ps))
				return False;
		}
		depth--;
		break;
	case 2:
		depth++;
		if(UNMARSHALLING(ps)) {
			ctr->dfs.info2 = (DFS_INFO_2 *)prs_alloc_mem(ps, num_entries*sizeof(DFS_INFO_2));
			if (!ctr->dfs.info2)
				return False;
		}

		for(i=0;i<num_entries;i++) {
			if(!prs_uint32("ptr_entrypath", ps, depth, &ctr->dfs.info2[i].ptr_entrypath))
				return False;
			if(!prs_uint32("ptr_comment", ps, depth, &ctr->dfs.info2[i].ptr_comment))
				return False;
			if(!prs_uint32("state", ps, depth, &ctr->dfs.info2[i].state))
				return False;
			if(!prs_uint32("num_storages", ps, depth, &ctr->dfs.info2[i].num_storages))
				return False;
		}
		for(i=0;i<num_entries;i++) {
			if(!smb_io_unistr2("", &ctr->dfs.info2[i].entrypath, ctr->dfs.info2[i].ptr_entrypath, ps, depth))
				return False;
			if(!prs_align(ps))
				return False;
			if(!smb_io_unistr2("",&ctr->dfs.info2[i].comment, ctr->dfs.info2[i].ptr_comment, ps, depth))
				return False;
			if(!prs_align(ps))
				return False;
		}
		depth--;
		break;
	case 3:
		depth++;
		if(UNMARSHALLING(ps)) {
			ctr->dfs.info3 = (DFS_INFO_3 *)prs_alloc_mem(ps, num_entries*sizeof(DFS_INFO_3));
			if (!ctr->dfs.info3)
				return False;
		}

		for(i=0;i<num_entries;i++) {
			if(!prs_uint32("ptr_entrypath", ps, depth, &ctr->dfs.info3[i].ptr_entrypath))
				return False;
			if(!prs_uint32("ptr_comment", ps, depth, &ctr->dfs.info3[i].ptr_comment))
				return False;
			if(!prs_uint32("state", ps, depth, &ctr->dfs.info3[i].state))
				return False;
			if(!prs_uint32("num_storages", ps, depth, &ctr->dfs.info3[i].num_storages))
				return False;
			if(!prs_uint32("ptr_storages", ps, depth, &ctr->dfs.info3[i].ptr_storages))
				return False;
		}
		for(i=0;i<num_entries;i++) {
			if(!smb_io_unistr2("", &ctr->dfs.info3[i].entrypath, ctr->dfs.info3[i].ptr_entrypath, ps, depth))
				return False;
			if(!prs_align(ps))
				return False;
			if(!smb_io_unistr2("", &ctr->dfs.info3[i].comment, ctr->dfs.info3[i].ptr_comment, ps, depth))
				return False;
			if(!prs_align(ps))
				return False;
			if(!prs_uint32("num_storage_infos", ps, depth, &ctr->dfs.info3[i].num_storage_infos))
				return False;

			if(!dfs_io_dfs_storage_info("storage_info", &ctr->dfs.info3[i], ps, depth))
				return False;
		}
	}

	return True;
}