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-rw-r--r--libgpo/pygpo.c591
1 files changed, 591 insertions, 0 deletions
diff --git a/libgpo/pygpo.c b/libgpo/pygpo.c
new file mode 100644
index 0000000..485c96f
--- /dev/null
+++ b/libgpo/pygpo.c
@@ -0,0 +1,591 @@
+/*
+ Unix SMB/CIFS implementation.
+ Copyright (C) Luke Morrison <luc785@hotmail.com> 2013
+
+ 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 "gpo.h"
+#include "ads.h"
+#include "secrets.h"
+#include "../libds/common/flags.h"
+#include "librpc/rpc/pyrpc_util.h"
+#include "auth/credentials/pycredentials.h"
+#include "libcli/util/pyerrors.h"
+#include "python/py3compat.h"
+#include "python/modules.h"
+#include <pytalloc.h>
+
+/* A Python C API module to use LIBGPO */
+
+#define GPO_getter(ATTR) \
+static PyObject* GPO_get_##ATTR(PyObject *self, void *closure) \
+{ \
+ struct GROUP_POLICY_OBJECT *gpo_ptr \
+ = pytalloc_get_ptr(self); \
+ \
+ if (gpo_ptr->ATTR) \
+ return PyUnicode_FromString(gpo_ptr->ATTR); \
+ else \
+ Py_RETURN_NONE; \
+}
+GPO_getter(ds_path)
+GPO_getter(file_sys_path)
+GPO_getter(display_name)
+GPO_getter(name)
+GPO_getter(link)
+GPO_getter(user_extensions)
+GPO_getter(machine_extensions)
+
+static PyGetSetDef GPO_setters[] = {
+ {discard_const_p(char, "ds_path"), (getter)GPO_get_ds_path, NULL, NULL,
+ NULL},
+ {discard_const_p(char, "file_sys_path"), (getter)GPO_get_file_sys_path,
+ NULL, NULL, NULL},
+ {discard_const_p(char, "display_name"), (getter)GPO_get_display_name,
+ NULL, NULL, NULL},
+ {discard_const_p(char, "name"), (getter)GPO_get_name, NULL, NULL,
+ NULL},
+ {discard_const_p(char, "link"), (getter)GPO_get_link, NULL, NULL,
+ NULL},
+ {discard_const_p(char, "user_extensions"),
+ (getter)GPO_get_user_extensions,
+ NULL, NULL, NULL},
+ {discard_const_p(char, "machine_extensions"),
+ (getter)GPO_get_machine_extensions, NULL, NULL, NULL},
+ {0}
+};
+
+static PyObject *py_gpo_get_unix_path(PyObject *self, PyObject *args,
+ PyObject *kwds)
+{
+ NTSTATUS status;
+ const char *cache_dir = NULL;
+ PyObject *ret = NULL;
+ char *unix_path = NULL;
+ TALLOC_CTX *frame = NULL;
+ static const char *kwlist[] = {"cache_dir", NULL};
+ struct GROUP_POLICY_OBJECT *gpo_ptr \
+ = (struct GROUP_POLICY_OBJECT *)pytalloc_get_ptr(self);
+
+ frame = talloc_stackframe();
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "|s",
+ discard_const_p(char *, kwlist),
+ &cache_dir)) {
+ goto out;
+ }
+
+ if (!cache_dir) {
+ cache_dir = cache_path(talloc_tos(), GPO_CACHE_DIR);
+ if (!cache_dir) {
+ PyErr_SetString(PyExc_MemoryError,
+ "Failed to determine gpo cache dir");
+ goto out;
+ }
+ }
+
+ status = gpo_get_unix_path(frame, cache_dir, gpo_ptr, &unix_path);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ PyErr_Format(PyExc_RuntimeError,
+ "Failed to determine gpo unix path: %s",
+ get_friendly_nt_error_msg(status));
+ goto out;
+ }
+
+ ret = PyUnicode_FromString(unix_path);
+
+out:
+ TALLOC_FREE(frame);
+ return ret;
+}
+
+static PyMethodDef GPO_methods[] = {
+ {"get_unix_path", PY_DISCARD_FUNC_SIG(PyCFunction,
+ py_gpo_get_unix_path),
+ METH_VARARGS | METH_KEYWORDS,
+ NULL },
+ {0}
+};
+
+static PyTypeObject GPOType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ .tp_name = "gpo.GROUP_POLICY_OBJECT",
+ .tp_doc = "GROUP_POLICY_OBJECT",
+ .tp_getset = GPO_setters,
+ .tp_methods = GPO_methods,
+ .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+};
+
+typedef struct {
+ PyObject_HEAD
+ ADS_STRUCT *ads_ptr;
+ PyObject *py_creds;
+ struct cli_credentials *cli_creds;
+} ADS;
+
+static void py_ads_dealloc(ADS* self)
+{
+ TALLOC_FREE(self->ads_ptr);
+ Py_CLEAR(self->py_creds);
+ Py_TYPE(self)->tp_free((PyObject*)self);
+}
+
+static PyObject* py_ads_connect(ADS *self, PyObject *Py_UNUSED(ignored));
+static int py_ads_init(ADS *self, PyObject *args, PyObject *kwds)
+{
+ const char *realm = NULL;
+ const char *workgroup = NULL;
+ const char *ldap_server = NULL;
+ PyObject *lp_obj = NULL;
+ PyObject *py_creds = NULL;
+ struct loadparm_context *lp_ctx = NULL;
+ bool ok = false;
+
+ static const char *kwlist[] = {
+ "ldap_server", "loadparm_context", "credentials", NULL
+ };
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "sO|O",
+ discard_const_p(char *, kwlist),
+ &ldap_server, &lp_obj, &py_creds)) {
+ return -1;
+ }
+ /* keep reference to the credentials. Clear any earlier ones */
+ Py_CLEAR(self->py_creds);
+ self->cli_creds = NULL;
+ self->py_creds = py_creds;
+ Py_XINCREF(self->py_creds);
+
+ if (self->py_creds) {
+ ok = py_check_dcerpc_type(self->py_creds, "samba.credentials",
+ "Credentials");
+ if (!ok) {
+ return -1;
+ }
+ self->cli_creds
+ = PyCredentials_AsCliCredentials(self->py_creds);
+ }
+
+ ok = py_check_dcerpc_type(lp_obj, "samba.param", "LoadParm");
+ if (!ok) {
+ return -1;
+ }
+ lp_ctx = pytalloc_get_type(lp_obj, struct loadparm_context);
+ if (lp_ctx == NULL) {
+ return -1;
+ }
+ ok = lp_load_initial_only(lp_ctx->szConfigFile);
+ if (!ok) {
+ PyErr_Format(PyExc_RuntimeError, "Could not load config file '%s'",
+ lp_ctx->szConfigFile);
+ return -1;
+ }
+
+ if (self->cli_creds) {
+ realm = cli_credentials_get_realm(self->cli_creds);
+ workgroup = cli_credentials_get_domain(self->cli_creds);
+ } else {
+ realm = lp_realm();
+ workgroup = lp_workgroup();
+ }
+
+ /* in case __init__ is called more than once */
+ if (self->ads_ptr) {
+ TALLOC_FREE(self->ads_ptr);
+ }
+ /* always succeeds or crashes */
+ self->ads_ptr = ads_init(pytalloc_get_mem_ctx(args),
+ realm,
+ workgroup,
+ ldap_server,
+ ADS_SASL_PLAIN);
+
+ return 0;
+}
+
+/* connect. Failure to connect results in an Exception */
+static PyObject* py_ads_connect(ADS *self,
+ PyObject *Py_UNUSED(ignored))
+{
+ ADS_STATUS status;
+ TALLOC_CTX *frame = talloc_stackframe();
+ if (!self->ads_ptr) {
+ PyErr_SetString(PyExc_RuntimeError, "Uninitialized");
+ return NULL;
+ }
+ TALLOC_FREE(self->ads_ptr->auth.user_name);
+ TALLOC_FREE(self->ads_ptr->auth.password);
+ TALLOC_FREE(self->ads_ptr->auth.realm);
+ if (self->cli_creds) {
+ self->ads_ptr->auth.user_name = talloc_strdup(self->ads_ptr,
+ cli_credentials_get_username(self->cli_creds));
+ if (self->ads_ptr->auth.user_name == NULL) {
+ PyErr_NoMemory();
+ goto err;
+ }
+ self->ads_ptr->auth.password = talloc_strdup(self->ads_ptr,
+ cli_credentials_get_password(self->cli_creds));
+ if (self->ads_ptr->auth.password == NULL) {
+ PyErr_NoMemory();
+ goto err;
+ }
+ self->ads_ptr->auth.realm = talloc_strdup(self->ads_ptr,
+ cli_credentials_get_realm(self->cli_creds));
+ if (self->ads_ptr->auth.realm == NULL) {
+ PyErr_NoMemory();
+ goto err;
+ }
+ self->ads_ptr->auth.flags |= ADS_AUTH_USER_CREDS;
+ status = ads_connect_user_creds(self->ads_ptr);
+ } else {
+ char *passwd = NULL;
+
+ if (!secrets_init()) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "secrets_init() failed");
+ goto err;
+ }
+
+ self->ads_ptr->auth.user_name = talloc_asprintf(self->ads_ptr,
+ "%s$",
+ lp_netbios_name());
+ if (self->ads_ptr->auth.user_name == NULL) {
+ PyErr_NoMemory();
+ goto err;
+ }
+
+ passwd = secrets_fetch_machine_password(
+ self->ads_ptr->server.workgroup, NULL, NULL);
+ if (passwd == NULL) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "Failed to fetch the machine account "
+ "password");
+ goto err;
+ }
+
+ self->ads_ptr->auth.password = talloc_strdup(self->ads_ptr,
+ passwd);
+ SAFE_FREE(passwd);
+ if (self->ads_ptr->auth.password == NULL) {
+ PyErr_NoMemory();
+ goto err;
+ }
+ self->ads_ptr->auth.realm = talloc_asprintf_strupper_m(
+ self->ads_ptr, "%s", self->ads_ptr->server.realm);
+ if (self->ads_ptr->auth.realm == NULL) {
+ PyErr_NoMemory();
+ goto err;
+ }
+ self->ads_ptr->auth.flags |= ADS_AUTH_USER_CREDS;
+ status = ads_connect(self->ads_ptr);
+ }
+ if (!ADS_ERR_OK(status)) {
+ PyErr_Format(PyExc_RuntimeError,
+ "ads_connect() failed: %s",
+ ads_errstr(status));
+ goto err;
+ }
+
+ TALLOC_FREE(frame);
+ Py_RETURN_TRUE;
+
+err:
+ TALLOC_FREE(frame);
+ return NULL;
+}
+
+/* Parameter mapping and functions for the GP_EXT struct */
+void initgpo(void);
+
+/* Global methods aka do not need a special pyobject type */
+static PyObject *py_gpo_get_sysvol_gpt_version(PyObject * self,
+ PyObject * args)
+{
+ TALLOC_CTX *tmp_ctx = NULL;
+ char *unix_path;
+ char *display_name = NULL;
+ uint32_t sysvol_version = 0;
+ PyObject *result;
+ NTSTATUS status;
+
+ if (!PyArg_ParseTuple(args, "s", &unix_path)) {
+ return NULL;
+ }
+ tmp_ctx = talloc_new(NULL);
+ if (!tmp_ctx) {
+ return PyErr_NoMemory();
+ }
+ status = gpo_get_sysvol_gpt_version(tmp_ctx, unix_path,
+ &sysvol_version,
+ &display_name);
+ if (!NT_STATUS_IS_OK(status)) {
+ PyErr_SetNTSTATUS(status);
+ TALLOC_FREE(tmp_ctx);
+ return NULL;
+ }
+
+ result = Py_BuildValue("[s,i]", display_name, sysvol_version);
+ talloc_free(tmp_ctx);
+ return result;
+}
+
+#ifdef HAVE_ADS
+static ADS_STATUS find_samaccount(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
+ const char *samaccountname,
+ uint32_t *uac_ret, const char **dn_ret)
+{
+ ADS_STATUS status;
+ const char *attrs[] = { "userAccountControl", NULL };
+ const char *filter;
+ LDAPMessage *res = NULL;
+ char *dn = NULL;
+ uint32_t uac = 0;
+
+ filter = talloc_asprintf(mem_ctx, "(sAMAccountName=%s)",
+ samaccountname);
+ if (filter == NULL) {
+ status = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
+ goto out;
+ }
+
+ status = ads_do_search_all(ads, ads->config.bind_path,
+ LDAP_SCOPE_SUBTREE, filter, attrs, &res);
+
+ if (!ADS_ERR_OK(status)) {
+ goto out;
+ }
+
+ if (ads_count_replies(ads, res) != 1) {
+ status = ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
+ goto out;
+ }
+
+ dn = ads_get_dn(ads, talloc_tos(), res);
+ if (dn == NULL) {
+ status = ADS_ERROR(LDAP_NO_MEMORY);
+ goto out;
+ }
+
+ if (!ads_pull_uint32(ads, res, "userAccountControl", &uac)) {
+ status = ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
+ goto out;
+ }
+
+ if (uac_ret) {
+ *uac_ret = uac;
+ }
+
+ if (dn_ret) {
+ *dn_ret = talloc_strdup(mem_ctx, dn);
+ if (*dn_ret == NULL) {
+ status = ADS_ERROR(LDAP_NO_MEMORY);
+ goto out;
+ }
+ }
+out:
+ TALLOC_FREE(dn);
+ ads_msgfree(ads, res);
+
+ return status;
+}
+
+static PyObject *py_ads_get_gpo_list(ADS *self, PyObject *args, PyObject *kwds)
+{
+ TALLOC_CTX *frame = NULL;
+ struct GROUP_POLICY_OBJECT *gpo = NULL, *gpo_list = NULL;
+ ADS_STATUS status;
+ const char *samaccountname = NULL;
+ const char *dn = NULL;
+ uint32_t uac = 0;
+ uint32_t flags = 0;
+ struct security_token *token = NULL;
+ PyObject *ret = NULL;
+ TALLOC_CTX *gpo_ctx = NULL;
+ size_t list_size;
+ size_t i;
+
+ static const char *kwlist[] = {"samaccountname", NULL};
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "s",
+ discard_const_p(char *, kwlist),
+ &samaccountname)) {
+ return NULL;
+ }
+ if (!self->ads_ptr) {
+ PyErr_SetString(PyExc_RuntimeError, "Uninitialized");
+ return NULL;
+ }
+
+ frame = talloc_stackframe();
+
+ status = find_samaccount(self->ads_ptr, frame,
+ samaccountname, &uac, &dn);
+ if (!ADS_ERR_OK(status)) {
+ PyErr_Format(PyExc_RuntimeError,
+ "Failed to find samAccountName '%s': %s",
+ samaccountname, ads_errstr(status));
+ goto out;
+ }
+
+ if (uac & UF_WORKSTATION_TRUST_ACCOUNT ||
+ uac & UF_SERVER_TRUST_ACCOUNT) {
+ flags |= GPO_LIST_FLAG_MACHINE;
+ status = gp_get_machine_token(self->ads_ptr, frame, dn,
+ &token);
+ if (!ADS_ERR_OK(status)) {
+ PyErr_Format(PyExc_RuntimeError,
+ "Failed to get machine token for '%s'(%s): %s",
+ samaccountname, dn, ads_errstr(status));
+ goto out;
+ }
+ } else {
+ status = ads_get_sid_token(self->ads_ptr, frame, dn, &token);
+ if (!ADS_ERR_OK(status)) {
+ PyErr_Format(PyExc_RuntimeError,
+ "Failed to get sid token for '%s'(%s): %s",
+ samaccountname, dn, ads_errstr(status));
+ goto out;
+ }
+ }
+
+ gpo_ctx = talloc_new(frame);
+ if (!gpo_ctx) {
+ PyErr_NoMemory();
+ goto out;
+ }
+ status = ads_get_gpo_list(self->ads_ptr, gpo_ctx, dn, flags, token,
+ &gpo_list);
+ if (!ADS_ERR_OK(status)) {
+ PyErr_Format(PyExc_RuntimeError,
+ "Failed to fetch GPO list: %s",
+ ads_errstr(status));
+ goto out;
+ }
+
+ /* Convert the C linked list into a python list */
+ list_size = 0;
+ for (gpo = gpo_list; gpo != NULL; gpo = gpo->next) {
+ list_size++;
+ }
+
+ i = 0;
+ ret = PyList_New(list_size);
+ if (ret == NULL) {
+ goto out;
+ }
+
+ for (gpo = gpo_list; gpo != NULL; gpo = gpo->next) {
+ PyObject *obj = pytalloc_reference_ex(&GPOType,
+ gpo_ctx, gpo);
+ if (obj == NULL) {
+ Py_CLEAR(ret);
+ goto out;
+ }
+
+ PyList_SetItem(ret, i, obj);
+ i++;
+ }
+
+out:
+ TALLOC_FREE(frame);
+ return ret;
+}
+
+#endif
+
+static PyMethodDef ADS_methods[] = {
+ { "connect", (PyCFunction)py_ads_connect, METH_NOARGS,
+ "Connect to the LDAP server" },
+#ifdef HAVE_ADS
+ { "get_gpo_list", PY_DISCARD_FUNC_SIG(PyCFunction, py_ads_get_gpo_list),
+ METH_VARARGS | METH_KEYWORDS,
+ NULL },
+#endif
+ {0}
+};
+
+static PyTypeObject ads_ADSType = {
+ .tp_name = "gpo.ADS_STRUCT",
+ .tp_basicsize = sizeof(ADS),
+ .tp_new = PyType_GenericNew,
+ .tp_dealloc = (destructor)py_ads_dealloc,
+ .tp_flags = Py_TPFLAGS_DEFAULT,
+ .tp_doc = "ADS struct",
+ .tp_methods = ADS_methods,
+ .tp_init = (initproc)py_ads_init,
+};
+
+static PyMethodDef py_gpo_methods[] = {
+ {"gpo_get_sysvol_gpt_version",
+ (PyCFunction)py_gpo_get_sysvol_gpt_version,
+ METH_VARARGS, NULL},
+ {0}
+};
+
+static struct PyModuleDef moduledef = {
+ PyModuleDef_HEAD_INIT,
+ .m_name = "gpo",
+ .m_doc = "libgpo python bindings",
+ .m_size = -1,
+ .m_methods = py_gpo_methods,
+};
+
+/* Will be called by python when loading this module */
+void initgpo(void);
+
+MODULE_INIT_FUNC(gpo)
+{
+ PyObject *m;
+
+ debug_setup_talloc_log();
+
+ /* Instantiate the types */
+ m = PyModule_Create(&moduledef);
+ if (m == NULL) {
+ goto err;
+ }
+
+ if (PyModule_AddObject(m, "version",
+ PyUnicode_FromString(SAMBA_VERSION_STRING)) ) {
+ goto err;
+ }
+
+ if (pytalloc_BaseObject_PyType_Ready(&ads_ADSType) < 0) {
+ goto err;
+ }
+
+ Py_INCREF(&ads_ADSType);
+ if (PyModule_AddObject(m, "ADS_STRUCT", (PyObject *)&ads_ADSType)) {
+ goto err;
+ }
+
+ if (pytalloc_BaseObject_PyType_Ready(&GPOType) < 0) {
+ goto err;
+ }
+
+ Py_INCREF((PyObject *)(void *)&GPOType);
+ if (PyModule_AddObject(m, "GROUP_POLICY_OBJECT",
+ (PyObject *)&GPOType)) {
+ goto err;
+ }
+ return m;
+
+err:
+ Py_CLEAR(m);
+ return NULL;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-16 22:55:56 +0000