util-vserver-0.30.208

[util-vserver.git] / vserver-start / interface-add.c

diff --git a/vserver-start/interface-add.c b/vserver-start/interface-add.c
new file mode 100644 (file)
index 0000000..f76b7b0
--- /dev/null
+++ b/vserver-start/interface-add.c
@@ -0,0 +1,133 @@
+// $Id: interface-add.c,v 1.3 2005/03/19 02:07:40 ensc Exp $    --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//  
+// 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; version 2 of the License.
+//  
+// 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, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "interface.h"
+#include "pathconfig.h"
+
+#include <lib_internal/command.h>
+#include <lib_internal/util.h>
+#include <ensc_fmt/fmt.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+unsigned int
+Iface_getIPv4Prefix(struct Interface const *iface)
+{
+  uint32_t     mask = iface->addr.ipv4.mask;
+  unsigned int res  = 0;
+  while (mask!=0) {
+    res += mask & 1;
+    mask >>= 1;
+  }
+
+  return res;
+}
+
+static bool
+invokeIpAddr(struct Interface const *iface)
+{
+  struct Command               cmd;
+  unsigned int                 prefix = Iface_getIPv4Prefix(iface);
+  char *                       tmp = inet_ntoa(*reinterpret_cast(struct in_addr *)(&iface->addr.ipv4.ip));
+  size_t                       l   = strlen(tmp);
+  char                         addr[l + sizeof("/") + sizeof(unsigned int)*3 + 1];
+  char *                       ptr;
+  size_t                       l1 = strlen(iface->dev);
+  size_t                       l2 = iface->name ? strlen(iface->name) : 0;
+  char                         devlabel[l1 + l2 + sizeof(":")];
+  bool                         result = true;
+
+  ptr    = Xmemcpy(addr, tmp, l);
+  *ptr++ = '/';
+  l      = utilvserver_fmt_uint(ptr, prefix);
+  ptr[l] = '\0';
+
+  Command_init(&cmd);
+
+  size_t               idx    = 6;
+  char const *         argv[] = {
+    "/bin/echo",
+    PROG_IP, "addr", "add",
+    addr,
+    "broadcast", 0,
+    0, 0,      // label <name>
+    0, 0,      // dev   <dev>
+    0
+  };
+
+  if (iface->addr.ipv4.bcast!=0)
+    argv[idx++] = inet_ntoa(*reinterpret_cast(struct in_addr *)(&iface->addr.ipv4.bcast));
+  else
+    argv[idx++] = "+";
+  
+  if (iface->name) {
+    ptr    = Xmemcpy(devlabel, iface->dev,  l1);
+    *ptr++ = ':';
+    ptr    = Xmemcpy(ptr,      iface->name, l2);
+    *ptr   = '\0';
+    
+    argv[idx++] = "label";
+    argv[idx++] = devlabel;
+  }
+
+  argv[idx++] = "dev";
+  argv[idx++] = iface->dev;  
+
+  Command_setParams(&cmd, argv);
+  if (!Command_exec(&cmd, true) ||
+      !Command_wait(&cmd, true) ||
+      cmd.rc!=0)
+    result = false;
+
+  Command_free(&cmd);
+  
+  return result;
+}
+
+static bool
+addVLAN(struct Interface const UNUSED *iface)
+{
+  abort();     // TODO: implement me
+}
+
+static bool
+addIndirect(struct Interface const UNUSED *iface)
+{
+  abort();     // TODO: implement me
+}
+
+static bool
+addIP(struct Interface const *iface)
+{
+  return invokeIpAddr(iface);
+    //invokeIpLink(iface);
+}
+
+bool
+Iface_add(struct Interface const *iface)
+{
+  if (iface->nodev)               return true;
+  if (strchr(iface->dev, '.')!=0) return addVLAN(iface);
+  if (!iface->direct)             return addIndirect(iface);
+  return addIP(iface);
+}