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samba-mirror/source4/libnet/py_net.c
Alexander Bokovoy bcc16f1911 s4-libnet: split export_keytab in a separate python module to avoid pulling in HDB dependency
Signed-off-by: Andreas Schneider <asn@samba.org>

Autobuild-User: Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date: Thu Apr 12 15:23:19 CEST 2012 on sn-devel-104
2012-04-12 15:23:19 +02:00

697 lines
20 KiB
C

/*
Unix SMB/CIFS implementation.
Samba utility functions
Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008-2010
Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 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 "includes.h"
#include <pyldb.h>
#include "libnet.h"
#include "auth/credentials/pycredentials.h"
#include "libcli/security/security.h"
#include "lib/events/events.h"
#include "param/pyparam.h"
#include "auth/gensec/gensec.h"
#include "librpc/rpc/pyrpc_util.h"
#include "libcli/resolve/resolve.h"
#include "libcli/finddc.h"
#include "dsdb/samdb/samdb.h"
#include "py_net.h"
void initnet(void);
static PyObject *py_net_join_member(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
struct libnet_Join_member r;
int _level = 0;
NTSTATUS status;
PyObject *result;
TALLOC_CTX *mem_ctx;
const char *kwnames[] = { "domain_name", "netbios_name", "level", "machinepass", NULL };
ZERO_STRUCT(r);
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ssi|z:Join", discard_const_p(char *, kwnames),
&r.in.domain_name, &r.in.netbios_name,
&_level,
&r.in.account_pass)) {
return NULL;
}
r.in.level = _level;
mem_ctx = talloc_new(self->mem_ctx);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_Join_member(self->libnet_ctx, mem_ctx, &r);
if (NT_STATUS_IS_ERR(status)) {
PyErr_SetString(PyExc_RuntimeError, r.out.error_string?r.out.error_string:nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
result = Py_BuildValue("sss", r.out.join_password,
dom_sid_string(mem_ctx, r.out.domain_sid),
r.out.domain_name);
talloc_free(mem_ctx);
return result;
}
static const char py_net_join_member_doc[] = "join_member(domain_name, netbios_name, level) -> (join_password, domain_sid, domain_name)\n\n" \
"Join the domain with the specified name.";
static PyObject *py_net_change_password(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
union libnet_ChangePassword r;
NTSTATUS status;
TALLOC_CTX *mem_ctx;
struct tevent_context *ev;
const char *kwnames[] = { "newpassword", NULL };
ZERO_STRUCT(r);
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s:change_password",
discard_const_p(char *, kwnames),
&r.generic.in.newpassword)) {
return NULL;
}
r.generic.level = LIBNET_CHANGE_PASSWORD_GENERIC;
r.generic.in.account_name = cli_credentials_get_username(self->libnet_ctx->cred);
r.generic.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
r.generic.in.oldpassword = cli_credentials_get_password(self->libnet_ctx->cred);
/* FIXME: we really need to get a context from the caller or we may end
* up with 2 event contexts */
ev = s4_event_context_init(NULL);
mem_ctx = talloc_new(ev);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_ChangePassword(self->libnet_ctx, mem_ctx, &r);
if (NT_STATUS_IS_ERR(status)) {
PyErr_SetString(PyExc_RuntimeError,
r.generic.out.error_string?r.generic.out.error_string:nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
talloc_free(mem_ctx);
Py_RETURN_NONE;
}
static const char py_net_change_password_doc[] = "change_password(newpassword) -> True\n\n" \
"Change password for a user. You must supply credential with enough rights to do this.\n\n" \
"Sample usage is:\n" \
"net.set_password(newpassword=<new_password>\n";
static PyObject *py_net_set_password(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
union libnet_SetPassword r;
NTSTATUS status;
TALLOC_CTX *mem_ctx;
struct tevent_context *ev;
const char *kwnames[] = { "account_name", "domain_name", "newpassword", NULL };
ZERO_STRUCT(r);
r.generic.level = LIBNET_SET_PASSWORD_GENERIC;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sss:set_password",
discard_const_p(char *, kwnames),
&r.generic.in.account_name,
&r.generic.in.domain_name,
&r.generic.in.newpassword)) {
return NULL;
}
/* FIXME: we really need to get a context from the caller or we may end
* up with 2 event contexts */
ev = s4_event_context_init(NULL);
mem_ctx = talloc_new(ev);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_SetPassword(self->libnet_ctx, mem_ctx, &r);
if (NT_STATUS_IS_ERR(status)) {
PyErr_SetString(PyExc_RuntimeError,
r.generic.out.error_string?r.generic.out.error_string:nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
talloc_free(mem_ctx);
Py_RETURN_NONE;
}
static const char py_net_set_password_doc[] = "set_password(account_name, domain_name, newpassword) -> True\n\n" \
"Set password for a user. You must supply credential with enough rights to do this.\n\n" \
"Sample usage is:\n" \
"net.set_password(account_name=<account_name>,\n" \
" domain_name=domain_name,\n" \
" newpassword=new_pass)\n";
static PyObject *py_net_time(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
const char *kwnames[] = { "server_name", NULL };
union libnet_RemoteTOD r;
NTSTATUS status;
TALLOC_CTX *mem_ctx;
char timestr[64];
PyObject *ret;
struct tm *tm;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s",
discard_const_p(char *, kwnames), &r.generic.in.server_name))
return NULL;
r.generic.level = LIBNET_REMOTE_TOD_GENERIC;
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_RemoteTOD(self->libnet_ctx, mem_ctx, &r);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetString(PyExc_RuntimeError,
r.generic.out.error_string?r.generic.out.error_string:nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
ZERO_STRUCT(timestr);
tm = localtime(&r.generic.out.time);
strftime(timestr, sizeof(timestr)-1, "%c %Z",tm);
ret = PyString_FromString(timestr);
talloc_free(mem_ctx);
return ret;
}
static const char py_net_time_doc[] = "time(server_name) -> timestr\n"
"Retrieve the remote time on a server";
static PyObject *py_net_user_create(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
const char *kwnames[] = { "username", NULL };
NTSTATUS status;
TALLOC_CTX *mem_ctx;
struct libnet_CreateUser r;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
&r.in.user_name))
return NULL;
r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_CreateUser(self->libnet_ctx, mem_ctx, &r);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetString(PyExc_RuntimeError, r.out.error_string?r.out.error_string:nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
talloc_free(mem_ctx);
Py_RETURN_NONE;
}
static const char py_net_create_user_doc[] = "create_user(username)\n"
"Create a new user.";
static PyObject *py_net_user_delete(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
const char *kwnames[] = { "username", NULL };
NTSTATUS status;
TALLOC_CTX *mem_ctx;
struct libnet_DeleteUser r;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
&r.in.user_name))
return NULL;
r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_DeleteUser(self->libnet_ctx, mem_ctx, &r);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetString(PyExc_RuntimeError, r.out.error_string?r.out.error_string:nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
talloc_free(mem_ctx);
Py_RETURN_NONE;
}
static const char py_net_delete_user_doc[] = "delete_user(username)\n"
"Delete a user.";
static PyObject *py_dom_sid_FromSid(struct dom_sid *sid)
{
PyObject *mod_security, *dom_sid_Type;
mod_security = PyImport_ImportModule("samba.dcerpc.security");
if (mod_security == NULL)
return NULL;
dom_sid_Type = PyObject_GetAttrString(mod_security, "dom_sid");
if (dom_sid_Type == NULL)
return NULL;
return pytalloc_reference((PyTypeObject *)dom_sid_Type, sid);
}
static PyObject *py_net_vampire(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
const char *kwnames[] = { "domain", "target_dir", NULL };
NTSTATUS status;
TALLOC_CTX *mem_ctx;
PyObject *ret;
struct libnet_Vampire r;
ZERO_STRUCT(r);
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|z", discard_const_p(char *, kwnames),
&r.in.domain_name, &r.in.targetdir)) {
return NULL;
}
r.in.netbios_name = lpcfg_netbios_name(self->libnet_ctx->lp_ctx);
r.out.error_string = NULL;
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_Vampire(self->libnet_ctx, mem_ctx, &r);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetString(PyExc_RuntimeError,
r.out.error_string ? r.out.error_string : nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
ret = Py_BuildValue("(sO)", r.out.domain_name, py_dom_sid_FromSid(r.out.domain_sid));
talloc_free(mem_ctx);
return ret;
}
struct replicate_state {
void *vampire_state;
dcerpc_InterfaceObject *drs_pipe;
struct libnet_BecomeDC_StoreChunk chunk;
DATA_BLOB gensec_skey;
struct libnet_BecomeDC_Partition partition;
struct libnet_BecomeDC_Forest forest;
struct libnet_BecomeDC_DestDSA dest_dsa;
};
/*
setup for replicate_chunk() calls
*/
static PyObject *py_net_replicate_init(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
const char *kwnames[] = { "samdb", "lp", "drspipe", NULL };
PyObject *py_ldb, *py_lp, *py_drspipe;
struct ldb_context *samdb;
struct loadparm_context *lp;
struct replicate_state *s;
NTSTATUS status;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OOO",
discard_const_p(char *, kwnames),
&py_ldb, &py_lp, &py_drspipe)) {
return NULL;
}
s = talloc_zero(NULL, struct replicate_state);
if (!s) return NULL;
lp = lpcfg_from_py_object(s, py_lp);
if (lp == NULL) {
PyErr_SetString(PyExc_TypeError, "Expected lp object");
talloc_free(s);
return NULL;
}
samdb = pyldb_Ldb_AsLdbContext(py_ldb);
if (samdb == NULL) {
PyErr_SetString(PyExc_TypeError, "Expected ldb object");
talloc_free(s);
return NULL;
}
s->drs_pipe = (dcerpc_InterfaceObject *)(py_drspipe);
s->vampire_state = libnet_vampire_replicate_init(s, samdb, lp);
if (s->vampire_state == NULL) {
PyErr_SetString(PyExc_TypeError, "Failed to initialise vampire_state");
talloc_free(s);
return NULL;
}
status = gensec_session_key(s->drs_pipe->pipe->conn->security_state.generic_state,
s,
&s->gensec_skey);
if (!NT_STATUS_IS_OK(status)) {
PyErr_Format(PyExc_RuntimeError, "Unable to get session key from drspipe: %s",
nt_errstr(status));
talloc_free(s);
return NULL;
}
s->forest.dns_name = samdb_dn_to_dns_domain(s, ldb_get_root_basedn(samdb));
s->forest.root_dn_str = ldb_dn_get_linearized(ldb_get_root_basedn(samdb));
s->forest.config_dn_str = ldb_dn_get_linearized(ldb_get_config_basedn(samdb));
s->forest.schema_dn_str = ldb_dn_get_linearized(ldb_get_schema_basedn(samdb));
s->chunk.gensec_skey = &s->gensec_skey;
s->chunk.partition = &s->partition;
s->chunk.forest = &s->forest;
s->chunk.dest_dsa = &s->dest_dsa;
return pytalloc_CObject_FromTallocPtr(s);
}
/*
process one replication chunk
*/
static PyObject *py_net_replicate_chunk(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
const char *kwnames[] = { "state", "level", "ctr",
"schema", "req_level", "req",
NULL };
PyObject *py_state, *py_ctr, *py_schema = Py_None, *py_req = Py_None;
struct replicate_state *s;
unsigned level;
unsigned req_level = 0;
NTSTATUS (*chunk_handler)(void *private_data, const struct libnet_BecomeDC_StoreChunk *c);
NTSTATUS status;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OIO|OIO",
discard_const_p(char *, kwnames),
&py_state, &level, &py_ctr,
&py_schema, &req_level, &py_req)) {
return NULL;
}
s = talloc_get_type(PyCObject_AsVoidPtr(py_state), struct replicate_state);
if (!s) {
PyErr_SetString(PyExc_TypeError, "Expected replication_state");
return NULL;
}
switch (level) {
case 1:
if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr1")) {
return NULL;
}
s->chunk.ctr1 = pytalloc_get_ptr(py_ctr);
s->partition.nc = *s->chunk.ctr1->naming_context;
s->partition.more_data = s->chunk.ctr1->more_data;
s->partition.source_dsa_guid = s->chunk.ctr1->source_dsa_guid;
s->partition.source_dsa_invocation_id = s->chunk.ctr1->source_dsa_invocation_id;
s->partition.highwatermark = s->chunk.ctr1->new_highwatermark;
break;
case 6:
if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr6")) {
return NULL;
}
s->chunk.ctr6 = pytalloc_get_ptr(py_ctr);
s->partition.nc = *s->chunk.ctr6->naming_context;
s->partition.more_data = s->chunk.ctr6->more_data;
s->partition.source_dsa_guid = s->chunk.ctr6->source_dsa_guid;
s->partition.source_dsa_invocation_id = s->chunk.ctr6->source_dsa_invocation_id;
s->partition.highwatermark = s->chunk.ctr6->new_highwatermark;
break;
default:
PyErr_Format(PyExc_TypeError, "Bad level %u in replicate_chunk", level);
return NULL;
}
s->chunk.req5 = NULL;
s->chunk.req8 = NULL;
s->chunk.req10 = NULL;
if (py_req) {
switch (req_level) {
case 0:
break;
case 5:
if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest5")) {
return NULL;
}
s->chunk.req5 = pytalloc_get_ptr(py_req);
break;
case 8:
if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest8")) {
return NULL;
}
s->chunk.req8 = pytalloc_get_ptr(py_req);
break;
case 10:
if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest10")) {
return NULL;
}
s->chunk.req10 = pytalloc_get_ptr(py_req);
break;
default:
PyErr_Format(PyExc_TypeError, "Bad req_level %u in replicate_chunk", req_level);
return NULL;
}
}
s->chunk.req_level = req_level;
chunk_handler = libnet_vampire_cb_store_chunk;
if (py_schema) {
if (!PyBool_Check(py_schema)) {
PyErr_SetString(PyExc_TypeError, "Expected boolean schema");
return NULL;
}
if (py_schema == Py_True) {
chunk_handler = libnet_vampire_cb_schema_chunk;
}
}
s->chunk.ctr_level = level;
status = chunk_handler(s->vampire_state, &s->chunk);
if (!NT_STATUS_IS_OK(status)) {
PyErr_Format(PyExc_TypeError, "Failed to process chunk: %s", nt_errstr(status));
return NULL;
}
Py_RETURN_NONE;
}
/*
find a DC given a domain name and server type
*/
static PyObject *py_net_finddc(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
const char *domain = NULL, *address = NULL;
unsigned server_type;
NTSTATUS status;
struct finddcs *io;
TALLOC_CTX *mem_ctx;
PyObject *ret;
const char * const kwnames[] = { "flags", "domain", "address", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "I|ss",
discard_const_p(char *, kwnames),
&server_type, &domain, &address)) {
return NULL;
}
mem_ctx = talloc_new(self->mem_ctx);
io = talloc_zero(mem_ctx, struct finddcs);
if (domain != NULL) {
io->in.domain_name = domain;
}
if (address != NULL) {
io->in.server_address = address;
}
io->in.minimum_dc_flags = server_type;
status = finddcs_cldap(io, io,
lpcfg_resolve_context(self->libnet_ctx->lp_ctx), self->ev);
if (NT_STATUS_IS_ERR(status)) {
PyErr_SetString(PyExc_RuntimeError, nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
ret = py_return_ndr_struct("samba.dcerpc.nbt", "NETLOGON_SAM_LOGON_RESPONSE_EX",
io, &io->out.netlogon.data.nt5_ex);
talloc_free(mem_ctx);
return ret;
}
static const char py_net_vampire_doc[] = "vampire(domain, target_dir=None)\n"
"Vampire a domain.";
static const char py_net_replicate_init_doc[] = "replicate_init(samdb, lp, drspipe)\n"
"Setup for replicate_chunk calls.";
static const char py_net_replicate_chunk_doc[] = "replicate_chunk(state, level, ctr, schema)\n"
"Process replication for one chunk";
static const char py_net_finddc_doc[] = "finddc(flags=server_type, domain=None, address=None)\n"
"Find a DC with the specified 'server_type' bits. The 'domain' and/or 'address' have to be used as additional search criteria. Returns the whole netlogon struct";
static PyMethodDef net_obj_methods[] = {
{"join_member", (PyCFunction)py_net_join_member, METH_VARARGS|METH_KEYWORDS, py_net_join_member_doc},
{"change_password", (PyCFunction)py_net_change_password, METH_VARARGS|METH_KEYWORDS, py_net_change_password_doc},
{"set_password", (PyCFunction)py_net_set_password, METH_VARARGS|METH_KEYWORDS, py_net_set_password_doc},
{"time", (PyCFunction)py_net_time, METH_VARARGS|METH_KEYWORDS, py_net_time_doc},
{"create_user", (PyCFunction)py_net_user_create, METH_VARARGS|METH_KEYWORDS, py_net_create_user_doc},
{"delete_user", (PyCFunction)py_net_user_delete, METH_VARARGS|METH_KEYWORDS, py_net_delete_user_doc},
{"vampire", (PyCFunction)py_net_vampire, METH_VARARGS|METH_KEYWORDS, py_net_vampire_doc},
{"replicate_init", (PyCFunction)py_net_replicate_init, METH_VARARGS|METH_KEYWORDS, py_net_replicate_init_doc},
{"replicate_chunk", (PyCFunction)py_net_replicate_chunk, METH_VARARGS|METH_KEYWORDS, py_net_replicate_chunk_doc},
{"finddc", (PyCFunction)py_net_finddc, METH_KEYWORDS, py_net_finddc_doc},
{ NULL }
};
static void py_net_dealloc(py_net_Object *self)
{
talloc_free(self->mem_ctx);
PyObject_Del(self);
}
static PyObject *net_obj_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *py_creds, *py_lp = Py_None;
const char *kwnames[] = { "creds", "lp", "server", NULL };
py_net_Object *ret;
struct loadparm_context *lp;
const char *server_address = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|Oz",
discard_const_p(char *, kwnames), &py_creds, &py_lp,
&server_address))
return NULL;
ret = PyObject_New(py_net_Object, type);
if (ret == NULL) {
return NULL;
}
/* FIXME: we really need to get a context from the caller or we may end
* up with 2 event contexts */
ret->ev = s4_event_context_init(NULL);
ret->mem_ctx = talloc_new(ret->ev);
lp = lpcfg_from_py_object(ret->mem_ctx, py_lp);
if (lp == NULL) {
Py_DECREF(ret);
return NULL;
}
ret->libnet_ctx = libnet_context_init(ret->ev, lp);
if (ret->libnet_ctx == NULL) {
PyErr_SetString(PyExc_RuntimeError, "Unable to initialize net");
Py_DECREF(ret);
return NULL;
}
ret->libnet_ctx->server_address = server_address;
ret->libnet_ctx->cred = cli_credentials_from_py_object(py_creds);
if (ret->libnet_ctx->cred == NULL) {
PyErr_SetString(PyExc_TypeError, "Expected credentials object");
Py_DECREF(ret);
return NULL;
}
return (PyObject *)ret;
}
PyTypeObject py_net_Type = {
PyObject_HEAD_INIT(NULL) 0,
.tp_name = "net.Net",
.tp_basicsize = sizeof(py_net_Object),
.tp_dealloc = (destructor)py_net_dealloc,
.tp_methods = net_obj_methods,
.tp_new = net_obj_new,
};
void initnet(void)
{
PyObject *m;
if (PyType_Ready(&py_net_Type) < 0)
return;
m = Py_InitModule3("net", NULL, NULL);
if (m == NULL)
return;
Py_INCREF(&py_net_Type);
PyModule_AddObject(m, "Net", (PyObject *)&py_net_Type);
PyModule_AddObject(m, "LIBNET_JOINDOMAIN_AUTOMATIC", PyInt_FromLong(LIBNET_JOINDOMAIN_AUTOMATIC));
PyModule_AddObject(m, "LIBNET_JOINDOMAIN_SPECIFIED", PyInt_FromLong(LIBNET_JOINDOMAIN_SPECIFIED));
PyModule_AddObject(m, "LIBNET_JOIN_AUTOMATIC", PyInt_FromLong(LIBNET_JOIN_AUTOMATIC));
PyModule_AddObject(m, "LIBNET_JOIN_SPECIFIED", PyInt_FromLong(LIBNET_JOIN_SPECIFIED));
}