diff options
Diffstat (limited to 'python/pyglue.c')
-rw-r--r-- | python/pyglue.c | 521 |
1 files changed, 521 insertions, 0 deletions
diff --git a/python/pyglue.c b/python/pyglue.c new file mode 100644 index 0000000..0e1bf82 --- /dev/null +++ b/python/pyglue.c @@ -0,0 +1,521 @@ +/* + 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 "python/py3compat.h" +#include "includes.h" +#include "version.h" +#include "param/pyparam.h" +#include "lib/socket/netif.h" +#include "lib/util/debug.h" +#include "librpc/ndr/ndr_private.h" + +void init_glue(void); +static PyObject *PyExc_NTSTATUSError; +static PyObject *PyExc_WERRORError; +static PyObject *PyExc_HRESULTError; +static PyObject *PyExc_DsExtendedError; + +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 = PyUnicode_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 = PyUnicode_FromString(retstr); + talloc_free(retstr); + return ret; +} + +static PyObject *py_generate_random_machine_password(PyObject *self, PyObject *args) +{ + int min, max; + PyObject *ret; + char *retstr; + if (!PyArg_ParseTuple(args, "ii", &min, &max)) + return NULL; + + retstr = generate_random_machine_password(NULL, min, max); + if (retstr == NULL) { + return NULL; + } + ret = PyUnicode_FromString(retstr); + talloc_free(retstr); + return ret; +} + +static PyObject *py_check_password_quality(PyObject *self, PyObject *args) +{ + char *pass; + + if (!PyArg_ParseTuple(args, "s", &pass)) { + return NULL; + } + + return PyBool_FromLong(check_password_quality(pass)); +} + +static PyObject *py_generate_random_bytes(PyObject *self, PyObject *args) +{ + int len; + PyObject *ret; + uint8_t *bytes = NULL; + + if (!PyArg_ParseTuple(args, "i", &len)) + return NULL; + + bytes = talloc_zero_size(NULL, len); + generate_random_buffer(bytes, len); + ret = PyBytes_FromStringAndSize((const char *)bytes, len); + talloc_free(bytes); + 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 PyLong_FromLong((uint64_t)t); +} + +static PyObject *py_float2nttime(PyObject *self, PyObject *args) +{ + double ft = 0; + double ft_sec = 0; + double ft_nsec = 0; + struct timespec ts; + NTTIME nt = 0; + + if (!PyArg_ParseTuple(args, "d", &ft)) { + return NULL; + } + + ft_sec = (double)(int)ft; + ft_nsec = (ft - ft_sec) * 1.0e+9; + + ts.tv_sec = (int)ft_sec; + ts.tv_nsec = (int)ft_nsec; + + nt = full_timespec_to_nt_time(&ts); + + return PyLong_FromLongLong((uint64_t)nt); +} + +static PyObject *py_nttime2float(PyObject *self, PyObject *args) +{ + double ft = 0; + struct timespec ts; + const struct timespec ts_zero = { .tv_sec = 0, }; + NTTIME nt = 0; + + if (!PyArg_ParseTuple(args, "K", &nt)) { + return NULL; + } + + ts = nt_time_to_full_timespec(nt); + if (is_omit_timespec(&ts)) { + return PyFloat_FromDouble(1.0); + } + ft = timespec_elapsed2(&ts_zero, &ts); + + return PyFloat_FromDouble(ft); +} + +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 = PyUnicode_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_set(level); + Py_RETURN_NONE; +} + +static PyObject *py_get_debug_level(PyObject *self, + PyObject *Py_UNUSED(ignored)) +{ + return PyLong_FromLong(debuglevel_get()); +} + +static PyObject *py_fault_setup(PyObject *self, + PyObject *Py_UNUSED(ignored)) +{ + static bool done; + if (!done) { + fault_setup(); + done = true; + } + Py_RETURN_NONE; +} + +static PyObject *py_is_ntvfs_fileserver_built(PyObject *self, + PyObject *Py_UNUSED(ignored)) +{ +#ifdef WITH_NTVFS_FILESERVER + Py_RETURN_TRUE; +#else + Py_RETURN_FALSE; +#endif +} + +static PyObject *py_is_heimdal_built(PyObject *self, + PyObject *Py_UNUSED(ignored)) +{ +#ifdef SAMBA4_USES_HEIMDAL + Py_RETURN_TRUE; +#else + Py_RETURN_FALSE; +#endif +} + +static PyObject *py_is_ad_dc_built(PyObject *self, + PyObject *Py_UNUSED(ignored)) +{ +#ifdef AD_DC_BUILD_IS_ENABLED + Py_RETURN_TRUE; +#else + Py_RETURN_FALSE; +#endif +} + +static PyObject *py_is_selftest_enabled(PyObject *self, + PyObject *Py_UNUSED(ignored)) +{ +#ifdef ENABLE_SELFTEST + Py_RETURN_TRUE; +#else + Py_RETURN_FALSE; +#endif +} + +static PyObject *py_ndr_token_max_list_size(PyObject *self, + PyObject *Py_UNUSED(ignored)) +{ + return PyLong_FromLong(ndr_token_max_list_size()); +} + +/* + 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, PyUnicode_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, PyUnicode_FromString(ip)); + ifcount++; + } + talloc_free(tmp_ctx); + return pylist; +} + +static PyObject *py_strcasecmp_m(PyObject *self, PyObject *args) +{ + const char *s1 = NULL; + const char *s2 = NULL; + long cmp_result = 0; + if (!PyArg_ParseTuple(args, PYARG_STR_UNI + PYARG_STR_UNI, + "utf8", &s1, "utf8", &s2)) { + return NULL; + } + + cmp_result = strcasecmp_m(s1, s2); + PyMem_Free(discard_const_p(char, s1)); + PyMem_Free(discard_const_p(char, s2)); + return PyLong_FromLong(cmp_result); +} + +static PyObject *py_strstr_m(PyObject *self, PyObject *args) +{ + const char *s1 = NULL; + const char *s2 = NULL; + char *strstr_ret = NULL; + PyObject *result = NULL; + if (!PyArg_ParseTuple(args, PYARG_STR_UNI + PYARG_STR_UNI, + "utf8", &s1, "utf8", &s2)) + return NULL; + + strstr_ret = strstr_m(s1, s2); + if (!strstr_ret) { + PyMem_Free(discard_const_p(char, s1)); + PyMem_Free(discard_const_p(char, s2)); + Py_RETURN_NONE; + } + result = PyUnicode_FromString(strstr_ret); + PyMem_Free(discard_const_p(char, s1)); + PyMem_Free(discard_const_p(char, s2)); + return result; +} + +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 (based on printable ascii characters) " + "with a length >= min and <= max." }, + { "generate_random_machine_password", (PyCFunction)py_generate_random_machine_password, + METH_VARARGS, "generate_random_machine_password(min, max) -> string\n" + "Generate random password " + "(based on random utf16 characters converted to utf8 or " + "random ascii characters if 'unix charset' is not 'utf8')" + "with a length >= min (at least 14) and <= max (at most 255)." }, + { "check_password_quality", (PyCFunction)py_check_password_quality, + METH_VARARGS, "check_password_quality(pass) -> bool\n" + "Check password quality against Samba's check_password_quality," + "the implementation of Microsoft's rules:" + "http://msdn.microsoft.com/en-us/subscriptions/cc786468%28v=ws.10%29.aspx" + }, + { "unix2nttime", (PyCFunction)py_unix2nttime, METH_VARARGS, + "unix2nttime(timestamp) -> nttime" }, + { "nttime2unix", (PyCFunction)py_nttime2unix, METH_VARARGS, + "nttime2unix(nttime) -> timestamp" }, + { "float2nttime", (PyCFunction)py_float2nttime, METH_VARARGS, + "pytime2nttime(floattimestamp) -> nttime" }, + { "nttime2float", (PyCFunction)py_nttime2float, METH_VARARGS, + "nttime2pytime(nttime) -> floattimestamp" }, + { "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" }, + { "fault_setup", (PyCFunction)py_fault_setup, METH_NOARGS, + "setup the default samba panic handler" }, + { "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()"}, + { "is_ntvfs_fileserver_built", (PyCFunction)py_is_ntvfs_fileserver_built, METH_NOARGS, + "is the NTVFS file server built in this installation?" }, + { "is_heimdal_built", (PyCFunction)py_is_heimdal_built, METH_NOARGS, + "is Samba built with Heimdal Kerberbos?" }, + { "generate_random_bytes", + (PyCFunction)py_generate_random_bytes, + METH_VARARGS, + "generate_random_bytes(len) -> bytes\n" + "Generate random bytes with specified length." }, + { "is_ad_dc_built", (PyCFunction)py_is_ad_dc_built, METH_NOARGS, + "is Samba built with AD DC?" }, + { "is_selftest_enabled", (PyCFunction)py_is_selftest_enabled, + METH_NOARGS, "is Samba built with selftest enabled?" }, + { "ndr_token_max_list_size", (PyCFunction)py_ndr_token_max_list_size, + METH_NOARGS, "How many NDR internal tokens is too many for this build?" }, + {0} +}; + +static struct PyModuleDef moduledef = { + PyModuleDef_HEAD_INIT, + .m_name = "_glue", + .m_doc = "Python bindings for miscellaneous Samba functions.", + .m_size = -1, + .m_methods = py_misc_methods, +}; + +MODULE_INIT_FUNC(_glue) +{ + PyObject *m; + + debug_setup_talloc_log(); + + m = PyModule_Create(&moduledef); + if (m == NULL) + return NULL; + + PyModule_AddObject(m, "version", + PyUnicode_FromString(SAMBA_VERSION_STRING)); + PyExc_NTSTATUSError = PyErr_NewException(discard_const_p(char, "samba.NTSTATUSError"), PyExc_RuntimeError, NULL); + if (PyExc_NTSTATUSError != NULL) { + Py_INCREF(PyExc_NTSTATUSError); + PyModule_AddObject(m, "NTSTATUSError", PyExc_NTSTATUSError); + } + + PyExc_WERRORError = PyErr_NewException(discard_const_p(char, "samba.WERRORError"), PyExc_RuntimeError, NULL); + if (PyExc_WERRORError != NULL) { + Py_INCREF(PyExc_WERRORError); + PyModule_AddObject(m, "WERRORError", PyExc_WERRORError); + } + + PyExc_HRESULTError = PyErr_NewException(discard_const_p(char, "samba.HRESULTError"), PyExc_RuntimeError, NULL); + if (PyExc_HRESULTError != NULL) { + Py_INCREF(PyExc_HRESULTError); + PyModule_AddObject(m, "HRESULTError", PyExc_HRESULTError); + } + + PyExc_DsExtendedError = PyErr_NewException(discard_const_p(char, "samba.DsExtendedError"), PyExc_RuntimeError, NULL); + if (PyExc_DsExtendedError != NULL) { + Py_INCREF(PyExc_DsExtendedError); + PyModule_AddObject(m, "DsExtendedError", PyExc_DsExtendedError); + } + + return m; +} + |