--- /dev/null
+###############################################################################
+# #
+# IPFire.org - A linux based firewall #
+# Copyright (C) 2007 Michael Tremer & Christian Schmidt #
+# #
+# 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, either version 3 of the License, or #
+# (at your option) any later version. #
+# #
+# 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, see <http://www.gnu.org/licenses/>. #
+# #
+###############################################################################
+
+###############################################################################
+# Definitions
+###############################################################################
+
+include Config
+
+VER = ipfire
+
+THISAPP = tunctl
+TARGET = $(DIR_INFO)/$(THISAPP)
+
+###############################################################################
+# Top-level Rules
+###############################################################################
+
+install : $(TARGET)
+
+check :
+
+download :
+
+md5 :
+
+###############################################################################
+# Installation Details
+###############################################################################
+
+$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
+ @$(PREBUILD)
+ @rm -rf $(DIR_SRC)/br2684ctl
+ cd $(DIR_SRC) && gcc $(CFLAGS) -latm $(DIR_SRC)/src/tunctl/tunctl.c -o tunctl
+ cd $(DIR_SRC) && install -v -m 755 tunctl /usr/bin/tunctl
+ @rm -rf $(DIR_SRC)/tunctl
+ @$(POSTBUILD)
--- /dev/null
+/* Copyright 2002 Jeff Dike
+ * Licensed under the GPL
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <linux/if_tun.h>
+
+static void Usage(char *name)
+{
+ fprintf(stderr, "Create: %s [-b] [-u owner] [-t device-name] "
+ "[-f tun-clone-device]\n", name);
+ fprintf(stderr, "Delete: %s -d device-name [-f tun-clone-device]\n\n",
+ name);
+ fprintf(stderr, "The default tun clone device is /dev/net/tun - some systems"
+ " use\n/dev/misc/net/tun instead\n\n");
+ fprintf(stderr, "-b will result in brief output (just the device name)\n");
+ exit(1);
+}
+
+int main(int argc, char **argv)
+{
+ struct ifreq ifr;
+ struct passwd *pw;
+ long owner = geteuid();
+ int tap_fd, opt, delete = 0, brief = 0;
+ char *tun = "", *file = "/dev/net/tun", *name = argv[0], *end;
+
+ while((opt = getopt(argc, argv, "bd:f:t:u:")) > 0){
+ switch(opt) {
+ case 'b':
+ brief = 1;
+ break;
+ case 'd':
+ delete = 1;
+ tun = optarg;
+ break;
+ case 'f':
+ file = optarg;
+ break;
+ case 'u':
+ pw = getpwnam(optarg);
+ if(pw != NULL){
+ owner = pw->pw_uid;
+ break;
+ }
+ owner = strtol(optarg, &end, 0);
+ if(*end != '\0'){
+ fprintf(stderr, "'%s' is neither a username nor a numeric uid.\n",
+ optarg);
+ Usage(name);
+ }
+ break;
+ case 't':
+ tun = optarg;
+ break;
+ case 'h':
+ default:
+ Usage(name);
+ }
+ }
+
+ argv += optind;
+ argc -= optind;
+
+ if(argc > 0)
+ Usage(name);
+
+ if((tap_fd = open(file, O_RDWR)) < 0){
+ fprintf(stderr, "Failed to open '%s' : ", file);
+ perror("");
+ exit(1);
+ }
+
+ memset(&ifr, 0, sizeof(ifr));
+
+ ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
+ strncpy(ifr.ifr_name, tun, sizeof(ifr.ifr_name) - 1);
+ if(ioctl(tap_fd, TUNSETIFF, (void *) &ifr) < 0){
+ perror("TUNSETIFF");
+ exit(1);
+ }
+
+ if(delete){
+ if(ioctl(tap_fd, TUNSETPERSIST, 0) < 0){
+ perror("TUNSETPERSIST");
+ exit(1);
+ }
+ printf("Set '%s' nonpersistent\n", ifr.ifr_name);
+ }
+ else {
+ if(ioctl(tap_fd, TUNSETPERSIST, 1) < 0){
+ perror("TUNSETPERSIST");
+ exit(1);
+ }
+ if(ioctl(tap_fd, TUNSETOWNER, owner) < 0){
+ perror("TUNSETPERSIST");
+ exit(1);
+ }
+ if(brief)
+ printf("%s\n", ifr.ifr_name);
+ else printf("Set '%s' persistent and owned by uid %ld\n", ifr.ifr_name,
+ owner);
+ }
+ return(0);
+}