Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Acked-by: Samuli Seppänen <samuli@openvpn.net>
Acked-by: David Sommerseth <davids@redhat.com>
Signed-off-by: David Sommerseth <davids@redhat.com>
25 | 26 |
new file mode 100644 |
... | ... |
@@ -0,0 +1,100 @@ |
0 |
+/* |
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+ * OpenVPN -- An application to securely tunnel IP networks |
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+ * over a single UDP port, with support for SSL/TLS-based |
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+ * session authentication and key exchange, |
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+ * packet encryption, packet authentication, and |
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+ * packet compression. |
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+ * |
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+ * Copyright (C) 2011 - David Sommerseth <davids@redhat.com> |
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+ * |
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+ * This program is free software; you can redistribute it and/or modify |
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+ * it under the terms of the GNU General Public License version 2 |
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+ * as published by the Free Software Foundation. |
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+ * |
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+ * This program is distributed in the hope that it will be useful, |
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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+ * GNU General Public License for more details. |
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+ * |
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+ * You should have received a copy of the GNU General Public License |
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+ * along with this program (see the file COPYING included with this |
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+ * distribution); if not, write to the Free Software Foundation, Inc., |
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+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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+ */ |
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+ |
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+#ifdef HAVE_CONFIG_H |
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+#include "config.h" |
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+#elif defined(_MSC_VER) |
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+#include "config-msvc.h" |
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+#endif |
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+ |
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+#ifndef HAVE_DAEMON |
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+ |
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+#ifdef HAVE_UNISTD_H |
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+#include <unistd.h> |
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+#endif |
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+ |
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+#ifdef HAVE_STDLIB_H |
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+#include <stdlib.h> |
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+#endif |
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+ |
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+#ifdef HAVE_SYS_TYPES_H |
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+#include <sys/types.h> |
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+#endif |
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+ |
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+#ifdef HAVE_SYS_STAT_H |
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+#include <sys/stat.h> |
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+#endif |
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+ |
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+#ifdef HAVE_FCNTL_H |
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+#include <fcntl.h> |
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+#endif |
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+ |
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+#ifdef HAVE_ERRNO_H |
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+#include <errno.h> |
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+#endif |
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+ |
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+int |
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+daemon(int nochdir, int noclose) |
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+{ |
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+#if defined(HAVE_FORK) && defined(HAVE_SETSID) |
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+ switch (fork()) { |
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+ case -1: |
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+ return (-1); |
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+ case 0: |
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+ break; |
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+ default: |
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+ exit(0); |
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+ } |
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+ |
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+ if (setsid() == -1) |
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+ return (-1); |
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+ |
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+ if (!nochdir) |
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+ chdir("/"); |
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+ |
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+ if (!noclose) { |
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+#if defined(HAVE_DUP) && defined(HAVE_DUP2) |
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+ int fd; |
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+ if ((fd = open ("/dev/null", O_RDWR, 0)) != -1) { |
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+ dup2 (fd, 0); |
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+ dup2 (fd, 1); |
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+ dup2 (fd, 2); |
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+ if (fd > 2) { |
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+ close (fd); |
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+ } |
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+ } |
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+#endif |
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+ } |
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+ |
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+ return 0; |
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+#else |
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+ (void)nochdir; |
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+ (void)noclose; |
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+ errno = EFAULT; |
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+ return -1; |
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+#endif |
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+} |
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+ |
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+#endif |
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+ |
... | ... |
@@ -993,7 +993,7 @@ possibly_become_daemon (const struct options *options, const bool first_time) |
993 | 993 |
{ |
994 | 994 |
ASSERT (!options->inetd); |
995 | 995 |
if (daemon (options->cd_dir != NULL, options->log) < 0) |
996 |
- msg (M_ERR, "daemon() failed"); |
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+ msg (M_ERR, "daemon() failed or unsupported"); |
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997 | 997 |
restore_signal_state (); |
998 | 998 |
if (options->log) |
999 | 999 |
set_std_files_to_null (true); |
... | ... |
@@ -301,38 +301,6 @@ do_mlockall(bool print_msg) |
301 | 301 |
#endif |
302 | 302 |
} |
303 | 303 |
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-#ifndef HAVE_DAEMON |
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- |
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-int |
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-daemon(int nochdir, int noclose) |
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-{ |
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-#if defined(HAVE_FORK) && defined(HAVE_SETSID) |
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- switch (fork()) |
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- { |
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- case -1: |
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- return (-1); |
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- case 0: |
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- break; |
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- default: |
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- openvpn_exit (OPENVPN_EXIT_STATUS_GOOD); /* exit point */ |
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- } |
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- |
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- if (setsid() == -1) |
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- return (-1); |
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- |
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- if (!nochdir) |
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- openvpn_chdir ("/"); |
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- |
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- if (!noclose) |
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- set_std_files_to_null (false); |
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-#else |
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- msg (M_FATAL, "Sorry but I can't become a daemon because this operating system doesn't appear to support either the daemon() or fork() system calls"); |
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-#endif |
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- return (0); |
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-} |
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- |
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-#endif |
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- |
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336 | 304 |
/* |
337 | 305 |
* Set standard file descriptors to /dev/null |
338 | 306 |
*/ |
... | ... |
@@ -115,10 +115,6 @@ unsigned int openvpn_getpid (void); |
115 | 115 |
|
116 | 116 |
void do_mlockall (bool print_msg); /* Disable paging */ |
117 | 117 |
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-#ifndef HAVE_DAEMON |
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-int daemon (int nochdir, int noclose); |
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-#endif |
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- |
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122 | 118 |
/* check file protections */ |
123 | 119 |
void warn_if_group_others_accessible(const char* filename); |
124 | 120 |
|