LCOV - code coverage report
Current view: top level - source4/lib/registry - pyregistry.c (source / functions) Hit Total Coverage
Test: coverage report for abartlet/fix-coverage dd10fb34 Lines: 86 196 43.9 %
Date: 2021-09-23 10:06:22 Functions: 10 17 58.8 %

          Line data    Source code
       1             : /* 
       2             :    Unix SMB/CIFS implementation.
       3             :    Samba utility functions
       4             :    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
       5             :    Copyright (C) Wilco Baan Hofman <wilco@baanhofman.nl> 2010
       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 "python/py3compat.h"
      23             : #include "includes.h"
      24             : #include "python/modules.h"
      25             : #include "libcli/util/pyerrors.h"
      26             : #include "lib/registry/registry.h"
      27             : #include <pytalloc.h>
      28             : #include "lib/events/events.h"
      29             : #include "auth/credentials/pycredentials.h"
      30             : #include "param/pyparam.h"
      31             : 
      32             : extern PyTypeObject PyRegistryKey;
      33             : extern PyTypeObject PyRegistry;
      34             : extern PyTypeObject PyHiveKey;
      35             : 
      36             : /*#define PyRegistryKey_AsRegistryKey(obj) pytalloc_get_type(obj, struct registry_key)*/
      37             : #define PyRegistry_AsRegistryContext(obj) ((struct registry_context *)pytalloc_get_ptr(obj))
      38             : #define PyHiveKey_AsHiveKey(obj) ((struct hive_key*)pytalloc_get_ptr(obj))
      39             : 
      40             : 
      41           0 : static PyObject *py_get_predefined_key_by_name(PyObject *self, PyObject *args)
      42             : {
      43             :         char *name;
      44             :         WERROR result;
      45           0 :         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
      46             :         struct registry_key *key;
      47             : 
      48           0 :         if (!PyArg_ParseTuple(args, "s", &name))
      49           0 :                 return NULL;
      50             : 
      51           0 :         result = reg_get_predefined_key_by_name(ctx, name, &key);
      52           0 :         PyErr_WERROR_NOT_OK_RAISE(result);
      53             : 
      54           0 :         return pytalloc_steal(&PyRegistryKey, key);
      55             : }
      56             : 
      57           0 : static PyObject *py_key_del_abs(PyObject *self, PyObject *args)
      58             : {
      59             :         char *path;
      60             :         WERROR result;
      61           0 :         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
      62             : 
      63           0 :         if (!PyArg_ParseTuple(args, "s", &path))
      64           0 :                 return NULL;
      65             : 
      66           0 :         result = reg_key_del_abs(ctx, path);
      67           0 :         PyErr_WERROR_NOT_OK_RAISE(result);
      68             : 
      69           0 :         Py_RETURN_NONE;
      70             : }
      71             : 
      72           0 : static PyObject *py_get_predefined_key(PyObject *self, PyObject *args)
      73             : {
      74             :         uint32_t hkey;
      75           0 :         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
      76             :         WERROR result;
      77             :         struct registry_key *key;
      78             : 
      79           0 :         if (!PyArg_ParseTuple(args, "I", &hkey))
      80           0 :                 return NULL;
      81             : 
      82           0 :         result = reg_get_predefined_key(ctx, hkey, &key);
      83           0 :         PyErr_WERROR_NOT_OK_RAISE(result);
      84             : 
      85           0 :         return pytalloc_steal(&PyRegistryKey, key);
      86             : }
      87             : 
      88         193 : static PyObject *py_diff_apply(PyObject *self, PyObject *args)
      89             : {
      90             :         char *filename;
      91             :         WERROR result;
      92         193 :         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
      93         193 :         if (!PyArg_ParseTuple(args, "s", &filename))
      94           0 :                 return NULL;
      95             : 
      96         193 :         result = reg_diff_apply(ctx, filename);
      97         193 :         PyErr_WERROR_NOT_OK_RAISE(result);
      98             : 
      99         193 :         Py_RETURN_NONE; 
     100             : }
     101             : 
     102         193 : static PyObject *py_mount_hive(PyObject *self, PyObject *args)
     103             : {
     104         193 :         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
     105             :         uint32_t hkey;
     106         193 :         PyObject *py_hivekey, *py_elements = Py_None;
     107             :         const char **elements;
     108             :         WERROR result;
     109             : 
     110         193 :         if (!PyArg_ParseTuple(args, "OI|O", &py_hivekey, &hkey, &py_elements))
     111           0 :                 return NULL;
     112             : 
     113         193 :         if (!PyList_Check(py_elements) && py_elements != Py_None) {
     114           0 :                 PyErr_SetString(PyExc_TypeError, "Expected list of elements");
     115           0 :                 return NULL;
     116             :         }
     117             : 
     118         193 :         if (py_elements == Py_None) {
     119         171 :                 elements = NULL;
     120             :         } else {
     121             :                 int i;
     122           0 :                 elements = talloc_array(NULL, const char *, PyList_Size(py_elements));
     123           0 :                 for (i = 0; i < PyList_Size(py_elements); i++)
     124           0 :                         elements[i] = PyUnicode_AsUTF8(PyList_GetItem(py_elements, i));
     125             :         }
     126             : 
     127         193 :         SMB_ASSERT(ctx != NULL);
     128             : 
     129         193 :         result = reg_mount_hive(ctx, PyHiveKey_AsHiveKey(py_hivekey), hkey, elements);
     130         193 :         PyErr_WERROR_NOT_OK_RAISE(result);
     131             : 
     132         193 :         Py_RETURN_NONE;
     133             : }
     134             : 
     135         194 : static PyObject *registry_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
     136             : {
     137             :         WERROR result;
     138             :         struct registry_context *ctx;
     139         194 :         result = reg_open_local(NULL, &ctx);
     140         194 :         PyErr_WERROR_NOT_OK_RAISE(result);
     141         194 :         return pytalloc_steal(&PyRegistry, ctx);
     142             : }
     143             : 
     144             : static PyMethodDef registry_methods[] = {
     145             :         { "get_predefined_key_by_name", py_get_predefined_key_by_name, METH_VARARGS, 
     146             :                 "S.get_predefined_key_by_name(name) -> key\n"
     147             :                 "Find a predefined key by name" },
     148             :         { "key_del_abs", py_key_del_abs, METH_VARARGS, "S.key_del_abs(name) -> None\n"
     149             :                 "Delete a key by absolute path." },
     150             :         { "get_predefined_key", py_get_predefined_key, METH_VARARGS, "S.get_predefined_key(hkey_id) -> key\n"
     151             :                 "Find a predefined key by id" },
     152             :         { "diff_apply", py_diff_apply, METH_VARARGS, "S.diff_apply(filename) -> None\n"
     153             :                 "Apply the diff from the specified file" },
     154             :         { "mount_hive", py_mount_hive, METH_VARARGS, "S.mount_hive(key, key_id, elements=None) -> None\n"
     155             :                 "Mount the specified key at the specified path." },
     156             :         {0}
     157             : };
     158             : 
     159             : PyTypeObject PyRegistry = {
     160             :         .tp_name = "Registry",
     161             :         .tp_methods = registry_methods,
     162             :         .tp_new = registry_new,
     163             :         .tp_flags = Py_TPFLAGS_DEFAULT,
     164             : };
     165             : 
     166           0 : static PyObject *py_hive_key_del(PyObject *self, PyObject *args)
     167             : {
     168             :         char *name;
     169           0 :         struct hive_key *key = PyHiveKey_AsHiveKey(self);
     170             :         WERROR result;
     171             : 
     172           0 :         if (!PyArg_ParseTuple(args, "s", &name))
     173           0 :                 return NULL;
     174             : 
     175           0 :         result = hive_key_del(NULL, key, name);
     176             : 
     177           0 :         PyErr_WERROR_NOT_OK_RAISE(result);
     178             : 
     179           0 :         Py_RETURN_NONE; 
     180             : }
     181             : 
     182           1 : static PyObject *py_hive_key_flush(PyObject *self,
     183             :                 PyObject *Py_UNUSED(ignored))
     184             : {
     185             :         WERROR result;
     186           1 :         struct hive_key *key = PyHiveKey_AsHiveKey(self);
     187             : 
     188           1 :         result = hive_key_flush(key);
     189           1 :         PyErr_WERROR_NOT_OK_RAISE(result);
     190             : 
     191           1 :         Py_RETURN_NONE;
     192             : }
     193             : 
     194           2 : static PyObject *py_hive_key_del_value(PyObject *self, PyObject *args)
     195             : {
     196             :         char *name;
     197             :         WERROR result;
     198           2 :         struct hive_key *key = PyHiveKey_AsHiveKey(self);
     199             : 
     200           2 :         if (!PyArg_ParseTuple(args, "s", &name))
     201           0 :                 return NULL;
     202             : 
     203           2 :         result = hive_key_del_value(NULL, key, name);
     204             : 
     205           2 :         PyErr_WERROR_NOT_OK_RAISE(result);
     206             : 
     207           1 :         Py_RETURN_NONE; 
     208             : }
     209             : 
     210           3 : static PyObject *py_hive_key_set_value(PyObject *self, PyObject *args)
     211             : {
     212             :         char *name;
     213             :         uint32_t type;
     214             :         DATA_BLOB value;
     215           3 :         Py_ssize_t value_length = 0;
     216             :         WERROR result;
     217           3 :         struct hive_key *key = PyHiveKey_AsHiveKey(self);
     218             : 
     219           3 :         if (!PyArg_ParseTuple(args, "sIz#", &name, &type, &value.data, &value_length)) {
     220           0 :                 return NULL;
     221             :         }
     222           3 :         value.length = value_length;
     223             : 
     224           3 :         if (value.data != NULL)
     225           3 :                 result = hive_key_set_value(key, name, type, value);
     226             :         else
     227           0 :                 result = hive_key_del_value(NULL, key, name);
     228             : 
     229           3 :         PyErr_WERROR_NOT_OK_RAISE(result);
     230             : 
     231           3 :         Py_RETURN_NONE; 
     232             : }
     233             : 
     234             : static PyMethodDef hive_key_methods[] = {
     235             :         { "del", py_hive_key_del, METH_VARARGS, "S.del(name) -> None\n"
     236             :                 "Delete a subkey" },
     237             :         { "flush", (PyCFunction)py_hive_key_flush, METH_NOARGS, "S.flush() -> None\n"
     238             :                 "Flush this key to disk" },
     239             :         { "del_value", py_hive_key_del_value, METH_VARARGS, "S.del_value(name) -> None\n"
     240             :                  "Delete a value" },
     241             :         { "set_value", py_hive_key_set_value, METH_VARARGS, "S.set_value(name, type, data) -> None\n"
     242             :                  "Set a value" },
     243             :         {0}
     244             : };
     245             : 
     246           0 : static PyObject *hive_new(PyTypeObject *type, PyObject *args, PyObject *kwargs) {
     247           0 :         Py_RETURN_NONE;
     248             : }
     249             : 
     250           0 : static PyObject *py_open_hive(PyTypeObject *type, PyObject *args, PyObject *kwargs)
     251             : {
     252           0 :         const char *kwnames[] = { "location", "lp_ctx", "session_info", "credentials", NULL };
     253             :         WERROR result;
     254             :         struct loadparm_context *lp_ctx;
     255           0 :         PyObject *py_lp_ctx = Py_None;
     256           0 :         PyObject *py_session_info = Py_None;
     257           0 :         PyObject *py_credentials = Py_None;
     258             :         struct auth_session_info *session_info;
     259             :         struct cli_credentials *credentials;
     260             :         char *location;
     261             :         struct hive_key *hive_key;
     262             :         TALLOC_CTX *mem_ctx;
     263             : 
     264           0 :         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|OOO",
     265             :                                          discard_const_p(char *, kwnames),
     266             :                                          &location,
     267             :                                          &py_lp_ctx, &py_session_info,
     268             :                                          &py_credentials))
     269           0 :                 return NULL;
     270             : 
     271           0 :         mem_ctx = talloc_new(NULL);
     272           0 :         if (mem_ctx == NULL) {
     273           0 :                 PyErr_NoMemory();
     274           0 :                 return NULL;
     275             :         }
     276             : 
     277           0 :         lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
     278           0 :         if (lp_ctx == NULL) {
     279           0 :                 PyErr_SetString(PyExc_TypeError, "Expected loadparm context");
     280           0 :                 talloc_free(mem_ctx);
     281           0 :                 return NULL;
     282             :         }
     283             : 
     284           0 :         credentials = cli_credentials_from_py_object(py_credentials);
     285           0 :         if (credentials == NULL) {
     286           0 :                 PyErr_SetString(PyExc_TypeError, "Expected credentials");
     287           0 :                 talloc_free(mem_ctx);
     288           0 :                 return NULL;
     289             :         }
     290           0 :         session_info = NULL;
     291             : 
     292           0 :         result = reg_open_hive(NULL, location, session_info, credentials,
     293             :                                samba_tevent_context_init(NULL),
     294             :                                lp_ctx, &hive_key);
     295           0 :         talloc_free(mem_ctx);
     296           0 :         PyErr_WERROR_NOT_OK_RAISE(result);
     297             : 
     298           0 :         return pytalloc_steal(&PyHiveKey, hive_key);
     299             : }
     300             : 
     301             : PyTypeObject PyHiveKey = {
     302             :         .tp_name = "HiveKey",
     303             :         .tp_methods = hive_key_methods,
     304             :         .tp_new = hive_new,
     305             :         .tp_flags = Py_TPFLAGS_DEFAULT,
     306             : };
     307             : 
     308             : PyTypeObject PyRegistryKey = {
     309             :         .tp_name = "RegistryKey",
     310             :         .tp_flags = Py_TPFLAGS_DEFAULT,
     311             : };
     312             : 
     313           0 : static PyObject *py_open_samba(PyObject *self, PyObject *args, PyObject *kwargs)
     314             : {
     315           0 :         const char *kwnames[] = { "lp_ctx", "session_info", NULL };
     316             :         struct registry_context *reg_ctx;
     317             :         WERROR result;
     318             :         struct loadparm_context *lp_ctx;
     319           0 :         PyObject *py_lp_ctx = Py_None;
     320           0 :         PyObject *py_session_info = Py_None;
     321           0 :         PyObject *py_credentials = Py_None;
     322             :         struct auth_session_info *session_info;
     323             :         struct cli_credentials *credentials;
     324             :         TALLOC_CTX *mem_ctx;
     325             : 
     326           0 :         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOO",
     327             :                                          discard_const_p(char *, kwnames),
     328             :                                          &py_lp_ctx, &py_session_info,
     329             :                                          &py_credentials))
     330           0 :                 return NULL;
     331             : 
     332           0 :         mem_ctx = talloc_new(NULL);
     333           0 :         if (mem_ctx == NULL) {
     334           0 :                 PyErr_NoMemory();
     335           0 :                 return NULL;
     336             :         }
     337             : 
     338           0 :         lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
     339           0 :         if (lp_ctx == NULL) {
     340           0 :                 PyErr_SetString(PyExc_TypeError, "Expected loadparm context");
     341           0 :                 talloc_free(mem_ctx);
     342           0 :                 return NULL;
     343             :         }
     344             : 
     345           0 :         credentials = cli_credentials_from_py_object(py_credentials);
     346           0 :         if (credentials == NULL) {
     347           0 :                 PyErr_SetString(PyExc_TypeError, "Expected credentials");
     348           0 :                 talloc_free(mem_ctx);
     349           0 :                 return NULL;
     350             :         }
     351             : 
     352           0 :         session_info = NULL; /* FIXME */
     353             : 
     354           0 :         result = reg_open_samba(NULL, &reg_ctx, NULL, 
     355             :                                 lp_ctx, session_info, credentials);
     356           0 :         talloc_free(mem_ctx);
     357           0 :         if (!W_ERROR_IS_OK(result)) {
     358           0 :                 PyErr_SetWERROR(result);
     359           0 :                 return NULL;
     360             :         }
     361             : 
     362           0 :         return pytalloc_steal(&PyRegistry, reg_ctx);
     363             : }
     364             : 
     365         198 : static PyObject *py_open_ldb_file(PyObject *self, PyObject *args, PyObject *kwargs)
     366             : {
     367         198 :         const char *kwnames[] = { "location", "session_info", "credentials", "lp_ctx", NULL };
     368         198 :         PyObject *py_session_info = Py_None, *py_credentials = Py_None, *py_lp_ctx = Py_None;
     369             :         WERROR result;
     370             :         char *location;
     371             :         struct loadparm_context *lp_ctx;
     372             :         struct cli_credentials *credentials;
     373             :         struct hive_key *key;
     374             :         struct auth_session_info *session_info;
     375             :         TALLOC_CTX *mem_ctx;
     376             : 
     377         198 :         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|OOO", 
     378             :                                          discard_const_p(char *, kwnames),
     379             :                                          &location, &py_session_info,
     380             :                                          &py_credentials, &py_lp_ctx))
     381           0 :                 return NULL;
     382             : 
     383         198 :         mem_ctx = talloc_new(NULL);
     384         198 :         if (mem_ctx == NULL) {
     385           0 :                 PyErr_NoMemory();
     386           0 :                 return NULL;
     387             :         }
     388             : 
     389         198 :         lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
     390         198 :         if (lp_ctx == NULL) {
     391           0 :                 PyErr_SetString(PyExc_TypeError, "Expected loadparm context");
     392           0 :                 talloc_free(mem_ctx);
     393           0 :                 return NULL;
     394             :         }
     395             : 
     396         198 :         credentials = cli_credentials_from_py_object(py_credentials);
     397         198 :         if (credentials == NULL) {
     398           0 :                 PyErr_SetString(PyExc_TypeError, "Expected credentials");
     399           0 :                 talloc_free(mem_ctx);
     400           0 :                 return NULL;
     401             :         }
     402             : 
     403         198 :         session_info = NULL; /* FIXME */
     404             : 
     405         198 :         result = reg_open_ldb_file(NULL, location, session_info, credentials,
     406             :                                    s4_event_context_init(NULL), lp_ctx, &key);
     407         198 :         talloc_free(mem_ctx);
     408         198 :         PyErr_WERROR_NOT_OK_RAISE(result);
     409             : 
     410         198 :         return pytalloc_steal(&PyHiveKey, key);
     411             : }
     412             : 
     413           1 : static PyObject *py_str_regtype(PyObject *self, PyObject *args)
     414             : {
     415             :         int regtype;
     416             : 
     417           1 :         if (!PyArg_ParseTuple(args, "i", &regtype))
     418           0 :                 return NULL;
     419             :         
     420           1 :         return PyUnicode_FromString(str_regtype(regtype));
     421             : }
     422             : 
     423           1 : static PyObject *py_get_predef_name(PyObject *self, PyObject *args)
     424             : {
     425             :         uint32_t hkey;
     426             :         const char *str;
     427             : 
     428           1 :         if (!PyArg_ParseTuple(args, "I", &hkey))
     429           0 :                 return NULL;
     430             : 
     431           1 :         str = reg_get_predef_name(hkey);
     432           1 :         if (str == NULL)
     433           0 :                 Py_RETURN_NONE;
     434           1 :         return PyUnicode_FromString(str);
     435             : }
     436             : 
     437             : static PyMethodDef py_registry_methods[] = {
     438             :         { "open_samba", PY_DISCARD_FUNC_SIG(PyCFunction, py_open_samba),
     439             :                 METH_VARARGS|METH_KEYWORDS, "open_samba() -> reg" },
     440             :         { "open_ldb", PY_DISCARD_FUNC_SIG(PyCFunction, py_open_ldb_file),
     441             :                 METH_VARARGS|METH_KEYWORDS, "open_ldb(location, session_info=None, credentials=None, loadparm_context=None) -> key" },
     442             :         { "open_hive", PY_DISCARD_FUNC_SIG(PyCFunction, py_open_hive),
     443             :                 METH_VARARGS|METH_KEYWORDS, "open_hive(location, session_info=None, credentials=None, loadparm_context=None) -> key" },
     444             :         { "str_regtype", py_str_regtype, METH_VARARGS, "str_regtype(int) -> str" },
     445             :         { "get_predef_name", py_get_predef_name, METH_VARARGS, "get_predef_name(hkey) -> str" },
     446             :         {0}
     447             : };
     448             : 
     449             : static struct PyModuleDef moduledef = {
     450             :     PyModuleDef_HEAD_INIT,
     451             :     .m_name = "registry",
     452             :     .m_doc = "Registry",
     453             :     .m_size = -1,
     454             :     .m_methods = py_registry_methods,
     455             : };
     456             : 
     457        1358 : MODULE_INIT_FUNC(registry)
     458             : {
     459             :         PyObject *m;
     460             : 
     461        1358 :         if (pytalloc_BaseObject_PyType_Ready(&PyHiveKey) < 0)
     462           0 :                 return NULL;
     463             : 
     464        1358 :         if (pytalloc_BaseObject_PyType_Ready(&PyRegistry) < 0)
     465           0 :                 return NULL;
     466             : 
     467        1358 :         if (pytalloc_BaseObject_PyType_Ready(&PyRegistryKey) < 0)
     468           0 :                 return NULL;
     469             : 
     470        1358 :         m = PyModule_Create(&moduledef);
     471        1358 :         if (m == NULL)
     472           0 :                 return NULL;
     473             : 
     474        1358 :         PyModule_AddObject(m, "HKEY_CLASSES_ROOT", PyLong_FromLong(HKEY_CLASSES_ROOT));
     475        1358 :         PyModule_AddObject(m, "HKEY_CURRENT_USER", PyLong_FromLong(HKEY_CURRENT_USER));
     476        1358 :         PyModule_AddObject(m, "HKEY_LOCAL_MACHINE", PyLong_FromLong(HKEY_LOCAL_MACHINE));
     477        1358 :         PyModule_AddObject(m, "HKEY_USERS", PyLong_FromLong(HKEY_USERS));
     478        1358 :         PyModule_AddObject(m, "HKEY_PERFORMANCE_DATA", PyLong_FromLong(HKEY_PERFORMANCE_DATA));
     479        1358 :         PyModule_AddObject(m, "HKEY_CURRENT_CONFIG", PyLong_FromLong(HKEY_CURRENT_CONFIG));
     480        1358 :         PyModule_AddObject(m, "HKEY_DYN_DATA", PyLong_FromLong(HKEY_DYN_DATA));
     481        1358 :         PyModule_AddObject(m, "HKEY_PERFORMANCE_TEXT", PyLong_FromLong(HKEY_PERFORMANCE_TEXT));
     482        1358 :         PyModule_AddObject(m, "HKEY_PERFORMANCE_NLSTEXT", PyLong_FromLong(HKEY_PERFORMANCE_NLSTEXT));
     483             : 
     484        1358 :         Py_INCREF(&PyRegistry);
     485        1358 :         PyModule_AddObject(m, "Registry", (PyObject *)&PyRegistry);
     486             : 
     487        1358 :         Py_INCREF(&PyHiveKey);
     488        1358 :         PyModule_AddObject(m, "HiveKey", (PyObject *)&PyHiveKey);
     489             : 
     490        1358 :         Py_INCREF(&PyRegistryKey);
     491        1358 :         PyModule_AddObject(m, "RegistryKey", (PyObject *)&PyRegistryKey);
     492             : 
     493        1358 :         return m;
     494             : }

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