Use an unused field. SYSNAME defaults to Linux which probably means this value may...

[util-vserver-pl.git] / python / vserverimpl.c

diff --git a/python/vserverimpl.c b/python/vserverimpl.c
index 9d4a503..931357b 100644 (file)
--- a/python/vserverimpl.c
+++ b/python/vserverimpl.c
@@ -59,6 +59,8 @@ static inline PyObject *inc_and_ret_none(void)
 
 #define NONE  inc_and_ret_none()
 
+#define PL_INSECURE_BCAPS      (vc_get_insecurebcaps() | (1 << VC_CAP_NET_BIND_SERVICE))
+
 /*
  * context create
  */
@@ -71,7 +73,7 @@ vserver_chcontext(PyObject *self, PyObject *args)
 
   if (!PyArg_ParseTuple(args, "I|K", &ctx, &bcaps))
     return NULL;
-  bcaps |= ~(vc_get_insecurebcaps() | (1 << VC_CAP_NET_BIND_SERVICE));
+  bcaps |= ~PL_INSECURE_BCAPS;
 
   if ((ctx_is_new = pl_chcontext(ctx, bcaps, 0)) < 0)
     return PyErr_SetFromErrno(PyExc_OSError);
@@ -301,7 +303,7 @@ vserver_set_bcaps(PyObject *self, PyObject *args)
   if (!PyArg_ParseTuple(args, "IK", &ctx, &caps.bcaps))
     return NULL;
 
-  caps.bmask = vc_get_insecurebcaps();
+  caps.bmask = PL_INSECURE_BCAPS;
   caps.cmask = caps.ccaps = 0;
   if (vc_set_ccaps(ctx, &caps) == -1 && errno != ESRCH)
     return PyErr_SetFromErrno(PyExc_OSError);
@@ -341,7 +343,7 @@ vserver_get_bcaps(PyObject *self, PyObject *args)
       caps.bcaps = 0;
   }
 
-  return Py_BuildValue("K", caps.bcaps & vc_get_insecurebcaps());
+  return Py_BuildValue("K", caps.bcaps & PL_INSECURE_BCAPS);
 }
 
 static PyObject *
@@ -450,24 +452,35 @@ get_mask(struct vc_net_addr *addr)
 static PyObject *
 vserver_net_add(PyObject *self, PyObject *args)
 {
-  struct vc_net_addr addr;
+  struct vc_net_addr addr = { .vna_type = 0 };
   nid_t nid;
   const char *ip;
 
   if (!PyArg_ParseTuple(args, "Is", &nid, &ip))
     return NULL;
 
-  if (convert_address(ip, &addr) == -1)
-    return PyErr_Format(PyExc_ValueError, "%s is not a valid IP address", ip);
+  /* Optimize standard case, which also needs to be handled differently */
+  if (strcmp(ip, "0.0.0.0") == 0) {
+    addr.vna_type = VC_NXA_TYPE_MASK | VC_NXA_TYPE_IPV4;
+    addr.vna_flags = 0;
+    addr.vna_prefix = 0;
+    addr.vna_parent = 0;
+    addr.vna_v4_mask.s_addr = 0;
+    addr.vna_v4_ip.s_addr = 0;
+  }
+  else {
+    if (convert_address(ip, &addr) == -1)
+      return PyErr_Format(PyExc_ValueError, "%s is not a valid IP address", ip);
 
-  switch (get_mask(&addr)) {
-  case -1:
-    return PyErr_SetFromErrno(PyExc_OSError);
-  case 0:
-    /* XXX error here? */
-    break;
+    switch (get_mask(&addr)) {
+    case -1:
+      return PyErr_SetFromErrno(PyExc_OSError);
+    case 0:
+      /* XXX error here? */
+      break;
+    }
+    addr.vna_type |= VC_NXA_TYPE_ADDR;
   }
-  addr.vna_type |= VC_NXA_TYPE_ADDR;
 
   if (vc_net_add(nid, &addr) == -1 && errno != ESRCH)
     return PyErr_SetFromErrno(PyExc_OSError);
@@ -599,7 +612,7 @@ vserver_mount(PyObject *self, PyObject *args)
 
   if (secure_chdir(&dirs, guest, target) == -1)
     goto out;
-  if (mount(source, ".", type, flags, data) == -1)
+  if (mount(source, ".", type, flags, data) == -1 && errno != EBUSY)
     goto out;
   restore_dirs(&dirs);
 
@@ -653,6 +666,43 @@ vserver_set_runlevel(PyObject *self, PyObject *args)
   return NONE;
 }
 
+static PyObject *
+vserver_set_name(PyObject *self, PyObject *args)
+{
+  xid_t       ctx, slice_id;
+  char        buf[sizeof(long int)*3+2];
+  PyObject    *ret;
+
+  if (!PyArg_ParseTuple(args, "II", &ctx, &slice_id))
+    return NULL;
+
+  snprintf(buf, sizeof(buf), "%d", slice_id); 
+
+  if (vc_set_vhi_name(ctx, vcVHI_CONTEXT, buf, sizeof(buf)) != 0) {
+    return PyErr_SetFromErrno(PyExc_OSError);
+  } else {
+    return NONE;
+  }
+}
+
+static PyObject *
+vserver_get_name(PyObject *self, PyObject *args)
+{
+  xid_t       ctx;
+  char        buf[sizeof(long int)*3+2];
+  PyObject    *ret;
+
+  if (!PyArg_ParseTuple(args, "I", &ctx))
+    return NULL;
+
+  if (vc_get_vhi_name(ctx, vcVHI_CONTEXT, buf, sizeof(buf)) !=0 ) {
+    ret = PyErr_SetFromErrno(PyExc_OSError);
+  } else {
+    ret = Py_BuildValue("i", atoi(buf));
+  }
+  return ret;
+}
+
 static PyMethodDef  methods[] = {
   { "chcontext", vserver_chcontext, METH_VARARGS,
     "chcontext to vserver with provided flags" },
@@ -692,6 +742,10 @@ static PyMethodDef  methods[] = {
     "Perform the umount2() system call" },
   { "setrunlevel", vserver_set_runlevel, METH_VARARGS,
     "Set the runlevel in utmp" },
+  { "setname", vserver_set_name, METH_VARARGS,
+    "Set the vcVHI_CONTEXT for a xid." },
+  { "getname", vserver_get_name, METH_VARARGS,
+    "Get the vcVHI_CONTEXT for a xid." },
   { NULL, NULL, 0, NULL }
 };