util-vserver-0.30.208

[util-vserver.git] / lib / capabilities.c

diff --git a/lib/capabilities.c b/lib/capabilities.c
new file mode 100644 (file)
index 0000000..e3ed156
--- /dev/null
+++ b/lib/capabilities.c
@@ -0,0 +1,86 @@
+// $Id: capabilities.c,v 1.5 2005/07/15 16:32:05 ensc Exp $    --*- c -*--
+
+// Copyright (C) 2003 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 "vserver.h"
+#include <string.h>
+
+#if 1
+#  define DECLARECAP(X,Y) { #X, VC_##X }
+#else
+#  define DECLARECAP(X,Y) { #X, Y }
+#endif
+
+static struct {
+    char const * const         id;
+    unsigned char              bit;
+} const CAP2BIT[] = {
+  DECLARECAP(CAP_CHOWN,             0),
+  DECLARECAP(CAP_DAC_OVERRIDE,      1),
+  DECLARECAP(CAP_DAC_READ_SEARCH,   2),
+  DECLARECAP(CAP_FOWNER,            3),
+  DECLARECAP(CAP_FSETID,            4),
+  DECLARECAP(CAP_KILL,              5),
+  DECLARECAP(CAP_SETGID,            6),
+  DECLARECAP(CAP_SETUID,            7),
+  DECLARECAP(CAP_SETPCAP,           8),
+  DECLARECAP(CAP_LINUX_IMMUTABLE,   9),
+  DECLARECAP(CAP_NET_BIND_SERVICE, 10),
+  DECLARECAP(CAP_NET_BROADCAST,    11),
+  DECLARECAP(CAP_NET_ADMIN,        12),
+  DECLARECAP(CAP_NET_RAW,          13),
+  DECLARECAP(CAP_IPC_LOCK,         14),
+  DECLARECAP(CAP_IPC_OWNER,        15),
+  DECLARECAP(CAP_SYS_MODULE,       16),
+  DECLARECAP(CAP_SYS_RAWIO,        17),
+  DECLARECAP(CAP_SYS_CHROOT,       18),
+  DECLARECAP(CAP_SYS_PTRACE,       19),
+  DECLARECAP(CAP_SYS_PACCT,        20),
+  DECLARECAP(CAP_SYS_ADMIN,        21),
+  DECLARECAP(CAP_SYS_BOOT,         22),
+  DECLARECAP(CAP_SYS_NICE,         23),
+  DECLARECAP(CAP_SYS_RESOURCE,     24),
+  DECLARECAP(CAP_SYS_TIME,        25),
+  DECLARECAP(CAP_SYS_TTY_CONFIG,   26),
+  DECLARECAP(CAP_MKNOD,            27),
+  DECLARECAP(CAP_LEASE,            28),
+  { "CAP_QUOTACTL",               29 },
+};
+  
+int
+vc_text2cap(char const *str)
+{
+  size_t       i;
+  if (strncmp(str, "CAP_", 4)==0) str += 4;
+
+  for (i=0; i<sizeof(CAP2BIT)/sizeof(CAP2BIT[0]); ++i)
+    if (strcmp(CAP2BIT[i].id+4, str)==0) return CAP2BIT[i].bit;
+
+  return -1;
+}
+
+char const *
+vc_cap2text(unsigned int bit)
+{
+  if ((size_t)bit>=sizeof(CAP2BIT)/sizeof(CAP2BIT[0])) return 0;
+  return CAP2BIT[bit].id;
+}