--- /dev/null
+// $Id: vattribute.c,v 1.14 2005/03/24 12:44:17 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 "util.h"
+#include <lib/vserver.h>
+
+#include <getopt.h>
+#include <stdint.h>
+#include <errno.h>
+
+#define ENSC_WRAPPERS_PREFIX "vattribute: "
+#define ENSC_WRAPPERS_VSERVER 1
+#define ENSC_WRAPPERS_UNISTD 1
+#include <wrappers.h>
+
+#define CMD_HELP 0x1000
+#define CMD_VERSION 0x1001
+#define CMD_XID 0x2000
+#define CMD_SET 0x2001
+#define CMD_CCAP 0x2002
+#define CMD_FLAG 0x2003
+#define CMD_SECURE 0x2004
+#define CMD_BCAP 0x2005
+
+int wrapper_exit_code = 1;
+
+struct option const
+CMDLINE_OPTIONS[] = {
+ { "help", no_argument, 0, CMD_HELP },
+ { "version", no_argument, 0, CMD_VERSION },
+ { "xid", required_argument, 0, CMD_XID },
+ { "set", no_argument, 0, CMD_SET },
+ { "ccap", required_argument, 0, CMD_CCAP },
+ { "bcap", required_argument, 0, CMD_BCAP },
+ { "flag", required_argument, 0, CMD_FLAG },
+ { "secure", no_argument, 0, CMD_SECURE },
+ {0,0,0,0}
+};
+
+struct Arguments {
+ xid_t xid;
+ struct vc_ctx_flags flags;
+ struct vc_ctx_caps caps;
+};
+
+static void
+showHelp(int fd, char const *cmd, int res)
+{
+ WRITE_MSG(fd, "Usage:\n ");
+ WRITE_STR(fd, cmd);
+ WRITE_MSG(fd,
+ " --set [--xid <xid>] [--bcap [~!]<cap>] [--ccap [~!]<cap>] [--flag [~!]<flag>] [--secure] -- [<program> <args>*]\n"
+ "\n"
+ " --bcap <cap> ... system capability to be added\n"
+ " --cap <cap> ... context capability to be added\n"
+ "\n"
+ "Please report bugs to " PACKAGE_BUGREPORT "\n");
+
+ exit(res);
+}
+
+static void
+showVersion()
+{
+ WRITE_MSG(1,
+ "vattribute " VERSION " -- sets attributes of vservers\n"
+ "This program is part of " PACKAGE_STRING "\n\n"
+ "Copyright (C) 2004 Enrico Scholz\n"
+ VERSION_COPYRIGHT_DISCLAIMER);
+ exit(0);
+}
+
+static void
+parseFlags(char const *str, struct vc_ctx_flags *flags)
+{
+ struct vc_err_listparser err;
+ int rc;
+
+ rc = vc_list2cflag(str,0, &err, flags);
+
+ if (rc==-1) {
+ WRITE_MSG(2, "Unknown flag '");
+ Vwrite(2, err.ptr, err.len);
+ WRITE_MSG(2, "'\n");
+ exit(wrapper_exit_code);
+ }
+}
+
+static void
+parseBCaps(char const *str, struct vc_ctx_caps *caps)
+{
+ struct vc_err_listparser err;
+ int rc;
+
+ rc = vc_list2bcap(str,0, &err, caps);
+
+ if (rc==-1) {
+ WRITE_MSG(2, "Unknown bcap '");
+ Vwrite(2, err.ptr, err.len);
+ WRITE_MSG(2, "'\n");
+ exit(wrapper_exit_code);
+ }
+}
+
+static void
+parseCCaps(char const *str, struct vc_ctx_caps *caps)
+{
+ struct vc_err_listparser err;
+ int rc;
+
+ rc = vc_list2ccap(str,0, &err, caps);
+
+ if (rc==-1) {
+ WRITE_MSG(2, "Unknown ccap '");
+ Vwrite(2, err.ptr, err.len);
+ WRITE_MSG(2, "'\n");
+ exit(wrapper_exit_code);
+ }
+}
+
+static void
+parseSecure(struct vc_ctx_flags UNUSED * flags,
+ struct vc_ctx_caps UNUSED * caps)
+{
+ caps->ccaps = ~vc_get_insecureccaps();
+ caps->cmask = ~0ull;
+ caps->bcaps = ~vc_get_insecurebcaps();
+ caps->bmask = ~0ull;
+
+ // TODO: generalize this
+ flags->flagword = VC_VXF_HIDE_NETIF;
+ flags->mask = VC_VXF_HIDE_NETIF;
+}
+
+int main(int argc, char *argv[])
+{
+ struct Arguments args = {
+ .xid = VC_NOCTX,
+ .flags = { .flagword = 0, .mask = 0 },
+ .caps = { .bcaps = 0, .bmask = 0,.ccaps = 0, .cmask = 0 },
+ };
+
+ while (1) {
+ int c = getopt_long(argc, argv, "+", CMDLINE_OPTIONS, 0);
+ if (c==-1) break;
+
+ switch (c) {
+ case CMD_HELP : showHelp(1, argv[0], 0);
+ case CMD_VERSION : showVersion();
+ case CMD_SET : break; // default op currently
+ case CMD_XID : args.xid = Evc_xidopt2xid(optarg,true); break;
+ case CMD_FLAG : parseFlags(optarg, &args.flags); break;
+ case CMD_CCAP : parseCCaps(optarg, &args.caps); break;
+ case CMD_BCAP : parseBCaps(optarg, &args.caps); break;
+ case CMD_SECURE : parseSecure(&args.flags, &args.caps); break;
+ default :
+ WRITE_MSG(2, "Try '");
+ WRITE_STR(2, argv[0]);
+ WRITE_MSG(2, " --help\" for more information.\n");
+ return 255;
+ break;
+ }
+ }
+
+ if (args.xid==VC_NOCTX) args.xid = Evc_get_task_xid(0);
+
+ if ((args.caps.cmask || args.caps.bmask) &&
+ vc_set_ccaps(args.xid, &args.caps)==-1)
+ perror(ENSC_WRAPPERS_PREFIX "vc_set_ccaps()");
+ else if (args.flags.mask &&
+ vc_set_cflags(args.xid, &args.flags)==-1)
+ perror(ENSC_WRAPPERS_PREFIX "vc_set_flags()");
+ else if (optind<argc)
+ EexecvpD(argv[optind], argv+optind);
+ else
+ return EXIT_SUCCESS;
+
+ return EXIT_FAILURE;
+}
git://git.onelab.eu / util-vserver.git / blobdiff