source4/libnet/py_net.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
   5    Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 2009
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include <Python.h>
  22 #include "includes.h"
  23 #include "libnet.h"
  24 #include "auth/credentials/pycredentials.h"
  25 #include "libcli/security/security.h"
  26 #include "lib/events/events.h"
  27 #include "param/param.h"
  28 #include "param/pyparam.h"
  29
  30 typedef struct {
  31         PyObject_HEAD
  32         struct libnet_context *libnet_ctx;
  33         TALLOC_CTX *mem_ctx;
  34         struct tevent_context *ev;
  35 } py_net_Object;
  36
  37 static PyObject *py_net_join(py_net_Object *self, PyObject *args, PyObject *kwargs)
  38 {
  39         struct libnet_Join r;
  40         NTSTATUS status;
  41         PyObject *result;
  42         TALLOC_CTX *mem_ctx;
  43         PyObject *py_creds;
  44         const char *kwnames[] = { "domain_name", "netbios_name", "join_type", "level", "credentials", NULL };
  45
  46         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ssiiO:Join", discard_const_p(char *, kwnames),
  47                                          &r.in.domain_name, &r.in.netbios_name,
  48                                          &r.in.join_type, &r.in.level, &py_creds))
  49                 return NULL;
  50
  51         mem_ctx = talloc_new(self->mem_ctx);
  52
  53         status = libnet_Join(self->libnet_ctx, mem_ctx, &r);
  54         if (NT_STATUS_IS_ERR(status)) {
  55                 PyErr_SetString(PyExc_RuntimeError, r.out.error_string);
  56                 talloc_free(mem_ctx);
  57                 return NULL;
  58         }
  59
  60         result = Py_BuildValue("sss", r.out.join_password,
  61                                dom_sid_string(mem_ctx, r.out.domain_sid),
  62                                r.out.domain_name);
  63
  64         talloc_free(mem_ctx);
  65
  66         return result;
  67 }
  68
  69 static const char py_net_join_doc[] = "join(domain_name, netbios_name, join_type, level) -> (join_password, domain_sid, domain_name)\n\n" \
  70 "Join the domain with the specified name.";
  71
  72 static PyObject *py_net_set_password(py_net_Object *self, PyObject *args, PyObject *kwargs)
  73 {
  74         union libnet_SetPassword r;
  75         NTSTATUS status;
  76         PyObject *py_creds;
  77         TALLOC_CTX *mem_ctx;
  78         struct tevent_context *ev;
  79         const char *kwnames[] = { "account_name", "domain_name", "newpassword", "credentials", NULL };
  80
  81         r.generic.level = LIBNET_SET_PASSWORD_GENERIC;
  82
  83         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sssO:set_password", discard_const_p(char *, kwnames),
  84                                          &r.generic.in.account_name, &r.generic.in.domain_name,
  85                                          &r.generic.in.newpassword, &py_creds)) {
  86                 return NULL;
  87         }
  88
  89         /* FIXME: we really need to get a context from the caller or we may end
  90          * up with 2 event contexts */
  91         ev = s4_event_context_init(NULL);
  92         mem_ctx = talloc_new(ev);
  93
  94         status = libnet_SetPassword(self->libnet_ctx, mem_ctx, &r);
  95         if (NT_STATUS_IS_ERR(status)) {
  96                 PyErr_SetString(PyExc_RuntimeError, r.generic.out.error_string);
  97                 talloc_free(mem_ctx);
  98                 return NULL;
  99         }
 100
 101         talloc_free(mem_ctx);
 102
 103         Py_RETURN_NONE;
 104 }
 105
 106 static const char py_net_set_password_doc[] = "set_password(account_name, domain_name, newpassword) -> True\n\n" \
 107 "Set password for a user. You must supply credential with enough rights to do this.\n\n" \
 108 "Sample usage is:\n" \
 109 "creds = samba.credentials.Credentials()\n" \
 110 "creds.set_username('admin_user')\n" \
 111 "creds.set_domain('domain_name')\n" \
 112 "creds.set_password('pass')\n\n" \
 113 "net.set_password(account_name=<account_name>,\n" \
 114 "                domain_name=creds.get_domain(),\n" \
 115 "                newpassword=new_pass,\n" \
 116 "                credentials=creds)\n";
 117
 118
 119 static PyObject *py_net_export_keytab(py_net_Object *self, PyObject *args, PyObject *kwargs)
 120 {
 121         struct libnet_export_keytab r;
 122         TALLOC_CTX *mem_ctx;
 123         const char *kwnames[] = { "keytab", "creds", NULL };
 124         PyObject *py_creds;
 125         NTSTATUS status;
 126
 127         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sO:export_keytab", discard_const_p(char *, kwnames),
 128                                          &r.in.keytab_name, &py_creds)) {
 129                 return NULL;
 130         }
 131
 132         mem_ctx = talloc_new(self->mem_ctx);
 133
 134         status = libnet_export_keytab(self->libnet_ctx, mem_ctx, &r);
 135         if (NT_STATUS_IS_ERR(status)) {
 136                 PyErr_SetString(PyExc_RuntimeError, r.out.error_string);
 137                 talloc_free(mem_ctx);
 138                 return NULL;
 139         }
 140
 141         talloc_free(mem_ctx);
 142
 143         Py_RETURN_NONE;
 144 }
 145
 146 static const char py_net_export_keytab_doc[] = "export_keytab(keytab, name)\n\n"
 147 "Export the DC keytab to a keytab file.";
 148
 149 static PyMethodDef net_obj_methods[] = {
 150         {"join", (PyCFunction)py_net_join, METH_VARARGS|METH_KEYWORDS, py_net_join_doc},
 151         {"set_password", (PyCFunction)py_net_set_password, METH_VARARGS|METH_KEYWORDS, py_net_set_password_doc},
 152         {"export_keytab", (PyCFunction)py_net_export_keytab, METH_VARARGS|METH_KEYWORDS, py_net_export_keytab_doc},
 153         { NULL }
 154 };
 155
 156 static void py_net_dealloc(py_net_Object *self)
 157 {
 158         talloc_free(self->mem_ctx);
 159 }
 160
 161 static PyObject *net_obj_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 162 {
 163         PyObject *py_creds, *py_lp = Py_None;
 164         const char *kwnames[] = { "creds", "lp", NULL };
 165         py_net_Object *ret;
 166         struct loadparm_context *lp;
 167
 168         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|O",
 169                         discard_const_p(char *, kwnames), &py_creds, &py_lp))
 170                 return NULL;
 171
 172         ret = PyObject_New(py_net_Object, type);
 173         if (ret == NULL) {
 174                 return NULL;
 175         }
 176
 177         /* FIXME: we really need to get a context from the caller or we may end
 178          * up with 2 event contexts */
 179         ret->ev = s4_event_context_init(NULL);
 180         ret->mem_ctx = talloc_new(ret->ev);
 181
 182         lp = lp_from_py_object(ret->mem_ctx, py_lp);
 183         if (lp == NULL) {
 184                 Py_DECREF(ret);
 185                 return NULL;
 186         }
 187
 188         ret->libnet_ctx = libnet_context_init(ret->ev, lp);
 189         if (ret->libnet_ctx == NULL) {
 190                 PyErr_SetString(PyExc_RuntimeError, "Unable to initialize net");
 191                 Py_DECREF(ret);
 192                 return NULL;
 193         }
 194
 195         ret->libnet_ctx->cred = cli_credentials_from_py_object(py_creds);
 196         if (ret->libnet_ctx->cred == NULL) {
 197                 PyErr_SetString(PyExc_TypeError, "Expected credentials object");
 198                 Py_DECREF(ret);
 199                 return NULL;
 200         }
 201
 202         return (PyObject *)ret;
 203 }
 204
 205
 206 PyTypeObject py_net_Type = {
 207         PyObject_HEAD_INIT(NULL) 0,
 208         .tp_name = "net.Net",
 209         .tp_basicsize = sizeof(py_net_Object),
 210         .tp_dealloc = (destructor)py_net_dealloc,
 211         .tp_methods = net_obj_methods,
 212         .tp_new = net_obj_new,
 213 };
 214
 215 void initnet(void)
 216 {
 217         PyObject *m;
 218         m = Py_InitModule3("net", NULL, NULL);
 219         if (m == NULL)
 220                 return;
 221
 222         Py_INCREF(&py_net_Type);
 223         PyModule_AddObject(m, "Net", (PyObject *)&py_net_Type);
 224 }