# Copyright 2005 Princeton University
-#$Id: vserver.py,v 1.62 2007/07/20 19:45:35 dhozac Exp $
+#$Id: vserver.py,v 1.63 2007/07/24 17:22:37 dhozac Exp $
import errno
import fcntl
def get_capabilities_config(self):
return self.config.get('bcapabilities', '')
+ def set_ipaddresses(self, addresses):
+ vserverimpl.netremove(self.ctx, "all")
+ for a in addresses.split(","):
+ vserverimpl.netadd(self.ctx, a)
+
+ def set_ipaddresses_config(self, addresses):
+ i = 0
+ for a in addresses.split(","):
+ self.config.set("interfaces/%d/ip" % i, a)
+ i += 1
+ self.set_ipaddresses(addresses)
+
+ def get_ipaddresses_config(self):
+ i = 0
+ ret = []
+ while True:
+ r = self.config.get("interfaces/%d/ip" % i, '')
+ if r == '':
+ break
+ ret += [r]
+ i += 1
+ return ",".join(ret)
+
+ def get_ipaddresses(self):
+ # No clean way to do this right now.
+ return None
+
def __do_chroot(self):
os.chroot(self.dir)
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
#include "config.h"
#include "pathconfig.h"
return list;
}
+static inline int
+convertAddress(const char *str, vc_net_nx_type *type, void *dst)
+{
+ int ret;
+ if (type) *type = vcNET_IPV4;
+ ret = inet_pton(AF_INET, str, dst);
+ if (ret==0) {
+ if (type) *type = vcNET_IPV6;
+ ret = inet_pton(AF_INET6, str, dst);
+ }
+ return ret > 0 ? 0 : -1;
+}
+
+/* XXX These two functions are really similar */
+static PyObject *
+vserver_net_add(PyObject *self, PyObject *args)
+{
+ struct vc_net_nx addr;
+ nid_t nid;
+ const char *ip;
+
+ if (!PyArg_ParseTuple(args, "Is", &nid, &ip))
+ return NULL;
+
+ if (convertAddress(ip, &addr.type, &addr.ip) == -1)
+ return PyErr_Format(PyExc_ValueError, "%s is not a valid IP address", ip);
+
+ switch (addr.type) {
+ case vcNET_IPV4: addr.mask[0] = htonl(0xffffff00); break;
+ case vcNET_IPV6: addr.mask[0] = 64; break;
+ default: addr.mask[0] = 0; break;
+ }
+ addr.count = 1;
+
+ if (vc_net_add(nid, &addr) == -1 && errno != ESRCH)
+ return PyErr_SetFromErrno(PyExc_OSError);
+
+ return NONE;
+}
+
+static PyObject *
+vserver_net_remove(PyObject *self, PyObject *args)
+{
+ struct vc_net_nx addr;
+ nid_t nid;
+ const char *ip;
+
+ if (!PyArg_ParseTuple(args, "Is", &nid, &ip))
+ return NULL;
+
+ if (strcmp(ip, "all") == 0)
+ addr.type = vcNET_ANY;
+ else if (strcmp(ip, "all4") == 0)
+ addr.type = vcNET_IPV4A;
+ else if (strcmp(ip, "all6") == 0)
+ addr.type = vcNET_IPV6A;
+ else
+ if (convertAddress(ip, &addr.type, &addr.ip) == -1)
+ return PyErr_Format(PyExc_ValueError, "%s is not a valid IP address", ip);
+
+ switch (addr.type) {
+ case vcNET_IPV4: addr.mask[0] = htonl(0xffffff00); break;
+ case vcNET_IPV6: addr.mask[0] = 64; break;
+ default: addr.mask[0] = 0; break;
+ }
+ addr.count = 1;
+
+ if (vc_net_remove(nid, &addr) == -1 && errno != ESRCH)
+ return PyErr_SetFromErrno(PyExc_OSError);
+
+ return NONE;
+}
+
static PyMethodDef methods[] = {
{ "chcontext", vserver_chcontext, METH_VARARGS,
"chcontext to vserver with provided flags" },
"Translate a string of capabilities to a bitmap" },
{ "bcaps2text", vserver_bcaps2text, METH_VARARGS,
"Translate a capability-bitmap into a string" },
+ { "netadd", vserver_net_add, METH_VARARGS,
+ "Assign an IP address to a context" },
+ { "netremove", vserver_net_remove, METH_VARARGS,
+ "Remove IP address(es) from a context" },
{ NULL, NULL, 0, NULL }
};