summaryrefslogtreecommitdiff
path: root/source4/scripting/ejs/smbcalls_data.c
blob: d0dd96c087a6c812543b008b353c81c3a184bd1a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
/* 
   Unix SMB/CIFS implementation.

   provide access to data blobs

   Copyright (C) Andrew Tridgell 2005
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "scripting/ejs/smbcalls.h"
#include "lib/appweb/ejs/ejs.h"
#include "librpc/gen_ndr/winreg.h"

/*
  create a data blob object from a ejs array of integers
*/
static int ejs_blobFromArray(MprVarHandle eid, int argc, struct MprVar **argv)
{
	struct MprVar *array, *v;
	unsigned length, i;
	DATA_BLOB blob;

	if (argc != 1) {
		ejsSetErrorMsg(eid, "blobFromArray invalid arguments");
		return -1;		
	}
	array = argv[0];

	v = mprGetProperty(array, "length", NULL);
	if (v == NULL) {
		goto failed;
	}
	length = mprToInt(v);

	blob = data_blob_talloc(mprMemCtx(), NULL, length);
	if (length != 0 && blob.data == NULL) {
		goto failed;
	}

	for (i=0;i<length;i++) {
		struct MprVar *vs;
		char idx[16];
		mprItoa(i, idx, sizeof(idx));		
		vs = mprGetProperty(array, idx, NULL);
		if (vs == NULL) {
			goto failed;
		}
		blob.data[i] = mprVarToNumber(vs);
	}

	mpr_Return(eid, mprDataBlob(blob));
	return 0;

failed:
	mpr_Return(eid, mprCreateUndefinedVar());
	return 0;
}

/*
  create a ejs array of integers from a data blob
*/
static int ejs_blobToArray(MprVarHandle eid, int argc, struct MprVar **argv)
{
	DATA_BLOB *blob;
	struct MprVar array;
	int i;

	if (argc != 1) {
		ejsSetErrorMsg(eid, "blobToArray invalid arguments");
		return -1;		
	}
	blob = mprToDataBlob(argv[0]);
	if (blob == NULL) {
		goto failed;
	}

	array = mprArray("array");
	
	for (i=0;i<blob->length;i++) {
		mprAddArray(&array, i, mprCreateNumberVar(blob->data[i]));
	}
	mpr_Return(eid, array);
	return 0;

failed:
	mpr_Return(eid, mprCreateUndefinedVar());
	return 0;
}


/*
  compare two data blobs
*/
static int ejs_blobCompare(MprVarHandle eid, int argc, struct MprVar **argv)
{
	DATA_BLOB *blob1, *blob2;
	bool ret = false;

	if (argc != 2) {
		ejsSetErrorMsg(eid, "blobCompare invalid arguments");
		return -1;		
	}
	
	blob1 = mprToDataBlob(argv[0]);
	blob2 = mprToDataBlob(argv[1]);

	if (blob1 == blob2) {
		ret = true;
		goto done;
	}
	if (blob1 == NULL || blob2 == NULL) {
		ret = false;
		goto done;
	}

	if (blob1->length != blob2->length) {
		ret = false;
		goto done;
	}

	if (memcmp(blob1->data, blob2->data, blob1->length) != 0) {
		ret = false;
		goto done;
	}
	ret = true;

done:
	mpr_Return(eid, mprCreateBoolVar(ret));
	return 0;
}


/*
  convert a blob in winreg format to a mpr variable
  
  usage:
     v = data.regToVar(blob, type);
*/
static int ejs_regToVar(MprVarHandle eid, int argc, struct MprVar **argv)
{
	DATA_BLOB *blob;
	enum winreg_Type type;
	struct MprVar v;

	if (argc != 2) {
		ejsSetErrorMsg(eid, "regToVar invalid arguments");
		return -1;		
	}
	
	blob = mprToDataBlob(argv[0]);
	type = mprToInt(argv[1]);

	if (blob == NULL) {
		ejsSetErrorMsg(eid, "regToVar null data");
		return -1;
	}

	switch (type) {
	case REG_NONE:
		v = mprCreateUndefinedVar();
		break;

	case REG_SZ:
	case REG_EXPAND_SZ: {
		char *s;
		ssize_t len;
		len = convert_string_talloc(mprMemCtx(), global_smb_iconv_convenience, CH_UTF16, CH_UNIX, 
					    blob->data, blob->length, (void **)&s);
		if (len == -1) {
			ejsSetErrorMsg(eid, "regToVar invalid REG_SZ string");
			return -1;
		}
		v = mprString(s);
		talloc_free(s);
		break;
	}

	case REG_DWORD: {
		if (blob->length != 4) {
			ejsSetErrorMsg(eid, "regToVar invalid REG_DWORD length %ld", (long)blob->length);
			return -1;
		}
		v = mprCreateNumberVar(IVAL(blob->data, 0));
		break;
	}

	case REG_DWORD_BIG_ENDIAN: {
		if (blob->length != 4) {
			ejsSetErrorMsg(eid, "regToVar invalid REG_DWORD_BIG_ENDIAN length %ld", (long)blob->length);
			return -1;
		}
		v = mprCreateNumberVar(RIVAL(blob->data, 0));
		break;
	}

	case REG_QWORD: {
		if (blob->length != 8) {
			ejsSetErrorMsg(eid, "regToVar invalid REG_QWORD length %ld", (long)blob->length);
			return -1;
		}
		v = mprCreateNumberVar(BVAL(blob->data, 0));
		break;
	}

	case REG_MULTI_SZ: {
		DATA_BLOB b = *blob;
		const char **list = NULL;
		while (b.length > 0) {
			char *s;
			ssize_t len;
			size_t slen = utf16_len_n(b.data, b.length);
			if (slen == 2 && b.length == 2 && SVAL(b.data, 0) == 0) {
				break;
			}
			len = convert_string_talloc(mprMemCtx(), global_smb_iconv_convenience, CH_UTF16, CH_UNIX, 
						    b.data, slen, (void **)&s);
			if (len == -1) {
				ejsSetErrorMsg(eid, "regToVar invalid REG_MULTI_SZ string");
				return -1;
			}
			list = str_list_add(list, s);
			talloc_free(s);
			talloc_steal(mprMemCtx(), list);
			b.data += slen;
			b.length -= slen;
		}
		v = mprList("REG_MULTI_SZ", list);
		talloc_free(list);
		break;
	}
		

	case REG_FULL_RESOURCE_DESCRIPTOR:
	case REG_RESOURCE_LIST:
	case REG_BINARY:
	case REG_RESOURCE_REQUIREMENTS_LIST:
	case REG_LINK:
		return ejs_blobToArray(eid, 1, argv);

	default:
		ejsSetErrorMsg(eid, "regToVar invalid type %d", type);
		return -1;		
	}
	
	mpr_Return(eid, v);
	return 0;
}

/*
  initialise datablob ejs subsystem
*/
static int ejs_datablob_init(MprVarHandle eid, int argc, struct MprVar **argv)
{
	struct MprVar *obj = mprInitObject(eid, "datablob", argc, argv);

	mprSetCFunction(obj, "blobFromArray", ejs_blobFromArray);
	mprSetCFunction(obj, "blobToArray", ejs_blobToArray);
	mprSetCFunction(obj, "blobCompare", ejs_blobCompare);
	mprSetCFunction(obj, "regToVar", ejs_regToVar);

	return 0;
}

/*
  setup C functions that be called from ejs
*/
NTSTATUS smb_setup_ejs_datablob(void)
{
	ejsDefineCFunction(-1, "datablob_init", ejs_datablob_init, NULL, MPR_VAR_SCRIPT_HANDLE);
	return NT_STATUS_OK;
}