{
int ctx_is_new;
xid_t ctx;
- uint_least64_t bcaps = ~vc_get_insecurebcaps();
+ uint_least64_t bcaps = 0;
- if (!PyArg_ParseTuple(args, "I", &ctx))
+ if (!PyArg_ParseTuple(args, "I|K", &ctx, &bcaps))
return NULL;
+ bcaps |= ~vc_get_insecurebcaps();
if ((ctx_is_new = pl_chcontext(ctx, bcaps, 0)) < 0)
return PyErr_SetFromErrno(PyExc_OSError);
return NONE;
}
+static PyObject *
+vserver_set_bcaps(PyObject *self, PyObject *args)
+{
+ xid_t ctx;
+ struct vc_ctx_caps caps;
+
+ if (!PyArg_ParseTuple(args, "IK", &ctx, &caps.bcaps))
+ return NULL;
+
+ caps.bmask = vc_get_insecurebcaps();
+ caps.cmask = caps.ccaps = 0;
+ if (vc_set_ccaps(ctx, &caps) == -1 && errno != ESRCH)
+ return PyErr_SetFromErrno(PyExc_OSError);
+
+ return NONE;
+}
+
+static PyObject *
+vserver_text2bcaps(PyObject *self, PyObject *args)
+{
+ struct vc_ctx_caps caps = { .bcaps = 0 };
+ const char *list;
+ int len;
+ struct vc_err_listparser err;
+
+ if (!PyArg_ParseTuple(args, "s#", &list, &len))
+ return NULL;
+
+ if (vc_list2bcap(list, len, &err, &caps) == -1)
+ return NULL;
+
+ return Py_BuildValue("K", caps.bcaps);
+}
+
+static PyObject *
+vserver_get_bcaps(PyObject *self, PyObject *args)
+{
+ xid_t ctx;
+ struct vc_ctx_caps caps;
+
+ if (!PyArg_ParseTuple(args, "I", &ctx))
+ return NULL;
+
+ if (vc_get_ccaps(ctx, &caps) == -1) {
+ if (errno != -ESRCH)
+ return PyErr_SetFromErrno(PyExc_OSError);
+ else
+ caps.bcaps = 0;
+ }
+
+ return Py_BuildValue("K", caps.bcaps & vc_get_insecurebcaps());
+}
+
+static PyObject *
+vserver_bcaps2text(PyObject *self, PyObject *args)
+{
+ struct vc_ctx_caps caps = { .bcaps = 0 };
+ PyObject *list;
+ const char *cap;
+
+ if (!PyArg_ParseTuple(args, "K", &caps.bcaps))
+ return NULL;
+
+ list = PyString_FromString("");
+
+ while ((cap = vc_lobcap2text(&caps.bcaps)) != NULL) {
+ if (list == NULL)
+ break;
+ PyString_ConcatAndDel(&list, PyString_FromFormat(
+ (PyString_Size(list) > 0 ? ",CAP_%s" : "CAP_%s" ),
+ cap));
+ }
+
+ return list;
+}
+
static PyMethodDef methods[] = {
{ "chcontext", vserver_chcontext, METH_VARARGS,
"chcontext to vserver with provided flags" },
"Send signal to all processes in vserver context" },
{ "isrunning", vserver_isrunning, METH_VARARGS,
"Check if vserver is running"},
+ { "setbcaps", vserver_set_bcaps, METH_VARARGS,
+ "Set POSIX capabilities of a vserver context" },
+ { "getbcaps", vserver_get_bcaps, METH_VARARGS,
+ "Get POSIX capabilities of a vserver context" },
+ { "text2bcaps", vserver_text2bcaps, METH_VARARGS,
+ "Translate a string of capabilities to a bitmap" },
+ { "bcaps2text", vserver_bcaps2text, METH_VARARGS,
+ "Translate a capability-bitmap into a string" },
{ NULL, NULL, 0, NULL }
};