summaryrefslogtreecommitdiffstats
path: root/python/pyglue.c
blob: 3fc6e38691f1e8a2df68de5f19a200e3fd52393b (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
285
286
287
/* 
   Unix SMB/CIFS implementation.
   Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
   Copyright (C) Matthias Dieter Wallnöfer          2009
   
   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 <Python.h>
#include "includes.h"
#include "version.h"
#include "param/pyparam.h"
#include "lib/socket/netif.h"

void init_glue(void);

static PyObject *py_generate_random_str(PyObject *self, PyObject *args)
{
	int len;
	PyObject *ret;
	char *retstr;
	if (!PyArg_ParseTuple(args, "i", &len))
		return NULL;

	retstr = generate_random_str(NULL, len);
	ret = PyString_FromString(retstr);
	talloc_free(retstr);
	return ret;
}

static PyObject *py_generate_random_password(PyObject *self, PyObject *args)
{
	int min, max;
	PyObject *ret;
	char *retstr;
	if (!PyArg_ParseTuple(args, "ii", &min, &max))
		return NULL;

	retstr = generate_random_password(NULL, min, max);
	if (retstr == NULL) {
		return NULL;
	}
	ret = PyString_FromString(retstr);
	talloc_free(retstr);
	return ret;
}

static PyObject *py_unix2nttime(PyObject *self, PyObject *args)
{
	time_t t;
	unsigned int _t;
	NTTIME nt;

	if (!PyArg_ParseTuple(args, "I", &_t)) {
		return NULL;
	}
	t = _t;

	unix_to_nt_time(&nt, t);

	return PyLong_FromLongLong((uint64_t)nt);
}

static PyObject *py_nttime2unix(PyObject *self, PyObject *args)
{
	time_t t;
	NTTIME nt;
	if (!PyArg_ParseTuple(args, "K", &nt))
		return NULL;

	t = nt_time_to_unix(nt);

	return PyInt_FromLong((uint64_t)t);
}

static PyObject *py_nttime2string(PyObject *self, PyObject *args)
{
	PyObject *ret;
	NTTIME nt;
	TALLOC_CTX *tmp_ctx;
	const char *string;
	if (!PyArg_ParseTuple(args, "K", &nt))
		return NULL;

	tmp_ctx = talloc_new(NULL);
	if (tmp_ctx == NULL) {
		PyErr_NoMemory();
		return NULL;
	}

	string = nt_time_string(tmp_ctx, nt);
	ret =  PyString_FromString(string);

	talloc_free(tmp_ctx);

	return ret;
}

static PyObject *py_set_debug_level(PyObject *self, PyObject *args)
{
	unsigned level;
	if (!PyArg_ParseTuple(args, "I", &level))
		return NULL;
	(DEBUGLEVEL) = level;
	Py_RETURN_NONE;
}

static PyObject *py_get_debug_level(PyObject *self)
{
	return PyInt_FromLong(DEBUGLEVEL);
}

/*
  return the list of interface IPs we have configured
  takes an loadparm context, returns a list of IPs in string form

  Does not return addresses on 127.0.0.0/8
 */
static PyObject *py_interface_ips(PyObject *self, PyObject *args)
{
	PyObject *pylist;
	int count;
	TALLOC_CTX *tmp_ctx;
	PyObject *py_lp_ctx;
	struct loadparm_context *lp_ctx;
	struct interface *ifaces;
	int i, ifcount;
	int all_interfaces = 1;

	if (!PyArg_ParseTuple(args, "O|i", &py_lp_ctx, &all_interfaces))
		return NULL;

	tmp_ctx = talloc_new(NULL);
	if (tmp_ctx == NULL) {
		PyErr_NoMemory();
		return NULL;
	}

	lp_ctx = lpcfg_from_py_object(tmp_ctx, py_lp_ctx);
	if (lp_ctx == NULL) {
		talloc_free(tmp_ctx);
		return NULL;
	}

	load_interface_list(tmp_ctx, lp_ctx, &ifaces);

	count = iface_list_count(ifaces);

	/* first count how many are not loopback addresses */
	for (ifcount = i = 0; i<count; i++) {
		const char *ip = iface_list_n_ip(ifaces, i);

		if (all_interfaces) {
			ifcount++;
			continue;
		}

		if (iface_list_same_net(ip, "127.0.0.1", "255.0.0.0")) {
			continue;
		}

		if (iface_list_same_net(ip, "169.254.0.0", "255.255.0.0")) {
			continue;
		}

		if (iface_list_same_net(ip, "::1", "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")) {
			continue;
		}

		if (iface_list_same_net(ip, "fe80::", "ffff:ffff:ffff:ffff::")) {
			continue;
		}

		ifcount++;
	}

	pylist = PyList_New(ifcount);
	for (ifcount = i = 0; i<count; i++) {
		const char *ip = iface_list_n_ip(ifaces, i);

		if (all_interfaces) {
			PyList_SetItem(pylist, ifcount, PyString_FromString(ip));
			ifcount++;
			continue;
		}

		if (iface_list_same_net(ip, "127.0.0.1", "255.0.0.0")) {
			continue;
		}

		if (iface_list_same_net(ip, "169.254.0.0", "255.255.0.0")) {
			continue;
		}

		if (iface_list_same_net(ip, "::1", "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")) {
			continue;
		}

		if (iface_list_same_net(ip, "fe80::", "ffff:ffff:ffff:ffff::")) {
			continue;
		}

		PyList_SetItem(pylist, ifcount, PyString_FromString(ip));
		ifcount++;
	}
	talloc_free(tmp_ctx);
	return pylist;
}

static PyObject *py_strcasecmp_m(PyObject *self, PyObject *args)
{
	char *s1, *s2;

	if (!PyArg_ParseTuple(args, "ss", &s1, &s2))
		return NULL;

	return PyInt_FromLong(strcasecmp_m(s1, s2));
}

static PyObject *py_strstr_m(PyObject *self, PyObject *args)
{
	char *s1, *s2, *ret;

	if (!PyArg_ParseTuple(args, "ss", &s1, &s2))
		return NULL;

	ret = strstr_m(s1, s2);
	if (!ret) {
		Py_RETURN_NONE;
	}
	return PyString_FromString(ret);
}

static PyMethodDef py_misc_methods[] = {
	{ "generate_random_str", (PyCFunction)py_generate_random_str, METH_VARARGS,
		"generate_random_str(len) -> string\n"
		"Generate random string with specified length." },
	{ "generate_random_password", (PyCFunction)py_generate_random_password,
		METH_VARARGS, "generate_random_password(min, max) -> string\n"
		"Generate random password with a length >= min and <= max." },
	{ "unix2nttime", (PyCFunction)py_unix2nttime, METH_VARARGS,
		"unix2nttime(timestamp) -> nttime" },
	{ "nttime2unix", (PyCFunction)py_nttime2unix, METH_VARARGS,
		"nttime2unix(nttime) -> timestamp" },
	{ "nttime2string", (PyCFunction)py_nttime2string, METH_VARARGS,
		"nttime2string(nttime) -> string" },
	{ "set_debug_level", (PyCFunction)py_set_debug_level, METH_VARARGS,
		"set debug level" },
	{ "get_debug_level", (PyCFunction)py_get_debug_level, METH_NOARGS,
		"get debug level" },
	{ "interface_ips", (PyCFunction)py_interface_ips, METH_VARARGS,
		"interface_ips(lp_ctx[, all_interfaces) -> list_of_ifaces\n"
		"\n"
		"get interface IP address list"},
	{ "strcasecmp_m", (PyCFunction)py_strcasecmp_m, METH_VARARGS,
		"(for testing) compare two strings using Samba's strcasecmp_m()"},
	{ "strstr_m", (PyCFunction)py_strstr_m, METH_VARARGS,
		"(for testing) find one string in another with Samba's strstr_m()"},
	{ NULL }
};

void init_glue(void)
{
	PyObject *m;

	debug_setup_talloc_log();

	m = Py_InitModule3("_glue", py_misc_methods, 
			   "Python bindings for miscellaneous Samba functions.");
	if (m == NULL)
		return;

	PyModule_AddObject(m, "version",
					   PyString_FromString(SAMBA_VERSION_STRING));
}