source4/scripting/python/pyglue.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
   4    Copyright (C) Matthias Dieter Wallnöfer          2009
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include <Python.h>
  21 #include "includes.h"
  22 #include "version.h"
  23 #include "param/pyparam.h"
  24 #include "lib/socket/netif.h"
  25
  26 void init_glue(void);
  27
  28 static PyObject *py_generate_random_str(PyObject *self, PyObject *args)
  29 {
  30         int len;
  31         PyObject *ret;
  32         char *retstr;
  33         if (!PyArg_ParseTuple(args, "i", &len))
  34                 return NULL;
  35
  36         retstr = generate_random_str(NULL, len);
  37         ret = PyString_FromString(retstr);
  38         talloc_free(retstr);
  39         return ret;
  40 }
  41
  42 static PyObject *py_generate_random_password(PyObject *self, PyObject *args)
  43 {
  44         int min, max;
  45         PyObject *ret;
  46         char *retstr;
  47         if (!PyArg_ParseTuple(args, "ii", &min, &max))
  48                 return NULL;
  49
  50         retstr = generate_random_password(NULL, min, max);
  51         if (retstr == NULL) {
  52                 return NULL;
  53         }
  54         ret = PyString_FromString(retstr);
  55         talloc_free(retstr);
  56         return ret;
  57 }
  58
  59 static PyObject *py_unix2nttime(PyObject *self, PyObject *args)
  60 {
  61         time_t t;
  62         NTTIME nt;
  63         if (!PyArg_ParseTuple(args, "I", &t))
  64                 return NULL;
  65
  66         unix_to_nt_time(&nt, t);
  67
  68         return PyLong_FromLongLong((uint64_t)nt);
  69 }
  70
  71 static PyObject *py_nttime2unix(PyObject *self, PyObject *args)
  72 {
  73         time_t t;
  74         NTTIME nt;
  75         if (!PyArg_ParseTuple(args, "K", &nt))
  76                 return NULL;
  77
  78         t = nt_time_to_unix(nt);
  79
  80         return PyInt_FromLong((uint64_t)t);
  81 }
  82
  83 static PyObject *py_nttime2string(PyObject *self, PyObject *args)
  84 {
  85         PyObject *ret;
  86         NTTIME nt;
  87         TALLOC_CTX *tmp_ctx;
  88         const char *string;
  89         if (!PyArg_ParseTuple(args, "K", &nt))
  90                 return NULL;
  91
  92         tmp_ctx = talloc_new(NULL);
  93         if (tmp_ctx == NULL) {
  94                 PyErr_NoMemory();
  95                 return NULL;
  96         }
  97
  98         string = nt_time_string(tmp_ctx, nt);
  99         ret =  PyString_FromString(string);
 100
 101         talloc_free(tmp_ctx);
 102
 103         return ret;
 104 }
 105
 106 static PyObject *py_set_debug_level(PyObject *self, PyObject *args)
 107 {
 108         unsigned level;
 109         if (!PyArg_ParseTuple(args, "I", &level))
 110                 return NULL;
 111         (DEBUGLEVEL) = level;
 112         Py_RETURN_NONE;
 113 }
 114
 115 static PyObject *py_get_debug_level(PyObject *self)
 116 {
 117         return PyInt_FromLong(DEBUGLEVEL);
 118 }
 119
 120 /*
 121   return the list of interface IPs we have configured
 122   takes an loadparm context, returns a list of IPs in string form
 123
 124   Does not return addresses on 127.0.0.0/8
 125  */
 126 static PyObject *py_interface_ips(PyObject *self, PyObject *args)
 127 {
 128         PyObject *pylist;
 129         int count;
 130         TALLOC_CTX *tmp_ctx;
 131         PyObject *py_lp_ctx;
 132         struct loadparm_context *lp_ctx;
 133         struct interface *ifaces;
 134         int i, ifcount;
 135         int all_interfaces;
 136
 137         if (!PyArg_ParseTuple(args, "Oi", &py_lp_ctx, &all_interfaces))
 138                 return NULL;
 139
 140         tmp_ctx = talloc_new(NULL);
 141         if (tmp_ctx == NULL) {
 142                 PyErr_NoMemory();
 143                 return NULL;
 144         }
 145
 146         lp_ctx = lpcfg_from_py_object(tmp_ctx, py_lp_ctx);
 147         if (lp_ctx == NULL) {
 148                 talloc_free(tmp_ctx);
 149                 return NULL;
 150         }
 151
 152         load_interfaces(tmp_ctx, lpcfg_interfaces(lp_ctx), &ifaces);
 153
 154         count = iface_count(ifaces);
 155
 156         /* first count how many are not loopback addresses */
 157         for (ifcount = i = 0; i<count; i++) {
 158                 const char *ip = iface_n_ip(ifaces, i);
 159                 if (!(!all_interfaces && iface_same_net(ip, "127.0.0.1", "255.0.0.0"))) {
 160                         ifcount++;
 161                 }
 162         }
 163
 164         pylist = PyList_New(ifcount);
 165         for (ifcount = i = 0; i<count; i++) {
 166                 const char *ip = iface_n_ip(ifaces, i);
 167                 if (!(!all_interfaces && iface_same_net(ip, "127.0.0.1", "255.0.0.0"))) {
 168                         PyList_SetItem(pylist, ifcount, PyString_FromString(ip));
 169                         ifcount++;
 170                 }
 171         }
 172         talloc_free(tmp_ctx);
 173         return pylist;
 174 }
 175
 176 static PyMethodDef py_misc_methods[] = {
 177         { "generate_random_str", (PyCFunction)py_generate_random_str, METH_VARARGS,
 178                 "generate_random_str(len) -> string\n"
 179                 "Generate random string with specified length." },
 180         { "generate_random_password", (PyCFunction)py_generate_random_password,
 181                 METH_VARARGS, "generate_random_password(min, max) -> string\n"
 182                 "Generate random password with a length >= min and <= max." },
 183         { "unix2nttime", (PyCFunction)py_unix2nttime, METH_VARARGS,
 184                 "unix2nttime(timestamp) -> nttime" },
 185         { "nttime2unix", (PyCFunction)py_nttime2unix, METH_VARARGS,
 186                 "nttime2unix(nttime) -> timestamp" },
 187         { "nttime2string", (PyCFunction)py_nttime2string, METH_VARARGS,
 188                 "nttime2string(nttime) -> string" },
 189         { "set_debug_level", (PyCFunction)py_set_debug_level, METH_VARARGS,
 190                 "set debug level" },
 191         { "get_debug_level", (PyCFunction)py_get_debug_level, METH_NOARGS,
 192                 "get debug level" },
 193         { "interface_ips", (PyCFunction)py_interface_ips, METH_VARARGS,
 194                 "get interface IP address list"},
 195         { NULL }
 196 };
 197
 198 void init_glue(void)
 199 {
 200         PyObject *m;
 201
 202         debug_setup_talloc_log();
 203
 204         m = Py_InitModule3("_glue", py_misc_methods,
 205                            "Python bindings for miscellaneous Samba functions.");
 206         if (m == NULL)
 207                 return;
 208
 209         PyModule_AddObject(m, "version",
 210                                            PyString_FromString(SAMBA_VERSION_STRING));
 211
 212         /* one of the most annoying things about python scripts is
 213            that they don't die when you hit control-C. This fixes that
 214            sillyness. As we do all database operations using
 215            transactions, this is also safe.
 216         */
 217         signal(SIGINT, SIG_DFL);
 218 }
 219