Alexander Yu. Solodukhin писал(а) в своём письме Sat,
28 Feb 2009 22:40:35 +0200:
Hi all.
I try to use rlm_python and got import error on importing any module
that relevant on shared object.
Here an rlm_python configuration:
## cut
python {
mod_instantiate = account
func_instantiate = instantiate
mod_authorize = account
func_authorize = authorize
mod_accounting = account
func_accounting = accounting
mod_preproxy = account
func_preproxy = preproxy
mod_postproxy = account
func_postproxy = postproxy
mod_postauth = account
func_postauth = postauth
mod_detach = account
func_detach = detach
}
## end cut
account.py is radiusd_test.py from src/modules/rlm_python with one line
added on top of file:
import time
'time' is not plain python module, it is shared object found at
/usr/lib/python2.5/lib-dynload/time.so
After starting radius i got this error:
rlm_python:python_load_function: module 'account' is not found
rlm_python:EXCEPT::
/usr/lib/python2.5/lib-dynload/time.so: undefined symbol:
PyExc_ValueError
I was examine rlm_python code, and example 'C' code from python
documentation on how to embedd python into 'C', and don't found major
differences.
This code works fine:
#include
int
main(int argc, char *argv[])
{
PyObject *pName, *pModule, *pDict, *pFunc;
PyObject *pArgs, *pValue;
int i;
if (argc < 3) {
fprintf(stderr,"Usage: call pythonfile funcname [args]\n");
return 1;
}
Py_Initialize();
pName = PyString_FromString(argv[1]);
/* Error checking of pName left out */
Py_INCREF(pName);
pModule = PyImport_Import(pName);
Py_DECREF(pName);
if (pModule != NULL) {
pFunc = PyObject_GetAttrString(pModule, argv[2]);
/* pFunc is a new reference */
if (pFunc && PyCallable_Check(pFunc)) {
pArgs = PyTuple_New(argc - 3);
for (i = 0; i < argc - 3; ++i) {
pValue = PyInt_FromLong(atoi(argv[i + 3]));
if (!pValue) {
Py_DECREF(pArgs);
Py_DECREF(pModule);
fprintf(stderr, "Cannot convert argument\n");
return 1;
}
/* pValue reference stolen here: */
PyTuple_SetItem(pArgs, i, pValue);
}
pValue = PyObject_CallObject(pFunc, pArgs);
Py_DECREF(pArgs);
if (pValue != NULL) {
printf("Result of call: %ld\n", PyInt_AsLong(pValue));
Py_DECREF(pValue);
}
else {
Py_DECREF(pFunc);
Py_DECREF(pModule);
PyErr_Print();
fprintf(stderr,"Call failed\n");
return 1;
}
}
else {
if (PyErr_Occurred())
PyErr_Print();
fprintf(stderr, "Cannot find function \"%s\"\n", argv[2]);
}
Py_XDECREF(pFunc);
Py_DECREF(pModule);
}
else {
PyErr_Print();
fprintf(stderr, "Failed to load \"%s\"\n", argv[1]);
return 1;
}
Py_Finalize();
return 0;
}
Compiled with:
gcc call.c -o call -I/usr/include/python2.5 -L/usr/lib/python2.5/config
-lpython2.5
Why this code does not through 'undefined symbol' error and rlm_python
does?
PS: I read mailing list before posting this question and saw that this
problem was found in 2007. I try newst freeradius 2.1.3 and problem
still exists.
Any feedback will be great.
gcc -shared .libs/rlm_python.o -Wl,--rpath
-Wl,/root/freeradius-server-2.1.3/src/lib/.libs -Wl,--rpath
-Wl,/usr/lib/freeradius
/root/freeradius-server-2.1.3/src/lib/.libs/libfreeradius-radius.so
-L/usr/lib/python2.5/config -ldl -lutil -lpython2.5 -lm -lnsl -lresolv
-lpthread -Wl,-export-dynamic -Wl,-O1 -Wl,-Bsymbolic-functions
-Wl,-soname -Wl,rlm_python-2.1.3.so -o .libs/rlm_python-2.1.3.so
/usr/lib/python2.5/lib-dynload/*.so
/usr/lib/python-support/python-mysqldb/python2.5/_mysql.so
solves the problem (/usr/lib/python2.5/lib-dynload/*.so
/usr/lib/python-support/python-mysqldb/python2.5/_mysql.so), but it's not
right way to fix this problem :)
--
ISP CrIS, Softwarium
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