diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/openvpn/Makefile.am | 1 | ||||
| -rw-r--r-- | src/openvpn/console.c | 238 | ||||
| -rw-r--r-- | src/openvpn/console.h | 33 | ||||
| -rw-r--r-- | src/openvpn/misc.c | 125 | ||||
| -rw-r--r-- | src/openvpn/misc.h | 3 | ||||
| -rw-r--r-- | src/openvpn/openvpn.vcproj | 8 | ||||
| -rw-r--r-- | src/openvpn/pkcs11.c | 1 | ||||
| -rw-r--r-- | src/openvpn/win32.c | 87 | ||||
| -rw-r--r-- | src/openvpn/win32.h | 5 |
9 files changed, 286 insertions, 215 deletions
diff --git a/src/openvpn/Makefile.am b/src/openvpn/Makefile.am index e170380..333eebc 100644 --- a/src/openvpn/Makefile.am +++ b/src/openvpn/Makefile.am @@ -58,6 +58,7 @@ openvpn_SOURCES = \ mbuf.c mbuf.h \ memdbg.h \ misc.c misc.h \ + console.c console.h \ mroute.c mroute.h \ mss.c mss.h \ mstats.c mstats.h \ diff --git a/src/openvpn/console.c b/src/openvpn/console.c new file mode 100644 index 0000000..2464e7e --- /dev/null +++ b/src/openvpn/console.c @@ -0,0 +1,238 @@ +/* + * OpenVPN -- An application to securely tunnel IP networks + * over a single UDP port, with support for SSL/TLS-based + * session authentication and key exchange, + * packet encryption, packet authentication, and + * packet compression. + * + * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * 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 (see the file COPYING included with this + * distribution); 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" +#elif defined(_MSC_VER) +#include "config-msvc.h" +#endif + +#include "syshead.h" +#include "console.h" +#include "error.h" +#include "buffer.h" +#include "misc.h" + +#ifdef WIN32 + +#include "win32.h" + +/* + * Get input from console. + * + * Return false on input error, or if service + * exit event is signaled. + */ + +static bool +get_console_input_win32 (const char *prompt, const bool echo, char *input, const int capacity) +{ + HANDLE in = INVALID_HANDLE_VALUE; + HANDLE err = INVALID_HANDLE_VALUE; + DWORD len = 0; + + ASSERT (prompt); + ASSERT (input); + ASSERT (capacity > 0); + + input[0] = '\0'; + + in = GetStdHandle (STD_INPUT_HANDLE); + err = get_orig_stderr (); + + if (in != INVALID_HANDLE_VALUE + && err != INVALID_HANDLE_VALUE + && !win32_service_interrupt (&win32_signal) + && WriteFile (err, prompt, strlen (prompt), &len, NULL)) + { + bool is_console = (GetFileType (in) == FILE_TYPE_CHAR); + DWORD flags_save = 0; + int status = 0; + WCHAR *winput; + + if (is_console) + { + if (GetConsoleMode (in, &flags_save)) + { + DWORD flags = ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT; + if (echo) + flags |= ENABLE_ECHO_INPUT; + SetConsoleMode (in, flags); + } + else + is_console = 0; + } + + if (is_console) + { + winput = malloc (capacity * sizeof (WCHAR)); + if (winput == NULL) + return false; + + status = ReadConsoleW (in, winput, capacity, &len, NULL); + WideCharToMultiByte (CP_UTF8, 0, winput, len, input, capacity, NULL, NULL); + free (winput); + } + else + status = ReadFile (in, input, capacity, &len, NULL); + + string_null_terminate (input, (int)len, capacity); + chomp (input); + + if (!echo) + WriteFile (err, "\r\n", 2, &len, NULL); + if (is_console) + SetConsoleMode (in, flags_save); + if (status && !win32_service_interrupt (&win32_signal)) + return true; + } + + return false; +} + +#endif + +#ifdef HAVE_GETPASS + +static FILE * +open_tty (const bool write) +{ + FILE *ret; + ret = fopen ("/dev/tty", write ? "w" : "r"); + if (!ret) + ret = write ? stderr : stdin; + return ret; +} + +static void +close_tty (FILE *fp) +{ + if (fp != stderr && fp != stdin) + fclose (fp); +} + +#endif + +#ifdef ENABLE_SYSTEMD + +/* + * is systemd running + */ + +static bool +check_systemd_running () +{ + struct stat a, b; + + /* We simply test whether the systemd cgroup hierarchy is + * mounted */ + + return (lstat("/sys/fs/cgroup", &a) == 0) + && (lstat("/sys/fs/cgroup/systemd", &b) == 0) + && (a.st_dev != b.st_dev); + +} + +static bool +get_console_input_systemd (const char *prompt, const bool echo, char *input, const int capacity) +{ + int std_out; + bool ret = false; + struct argv argv; + + argv_init (&argv); + argv_printf (&argv, "/bin/systemd-ask-password"); + argv_printf_cat (&argv, "%s", prompt); + + if ((std_out = openvpn_popen (&argv, NULL)) < 0) { + return false; + } + CLEAR (*input); + if (read (std_out, input, capacity) != 0) + { + chomp (input); + ret = true; + } + close (std_out); + + argv_reset (&argv); + + return ret; +} + + +#endif + +/* + * Get input from console + */ +bool +get_console_input (const char *prompt, const bool echo, char *input, const int capacity) +{ + bool ret = false; + ASSERT (prompt); + ASSERT (input); + ASSERT (capacity > 0); + input[0] = '\0'; + +#ifdef ENABLE_SYSTEMD + if (check_systemd_running ()) + return get_console_input_systemd (prompt, echo, input, capacity); +#endif + +#if defined(WIN32) + return get_console_input_win32 (prompt, echo, input, capacity); +#elif defined(HAVE_GETPASS) + if (echo) + { + FILE *fp; + + fp = open_tty (true); + fprintf (fp, "%s", prompt); + fflush (fp); + close_tty (fp); + + fp = open_tty (false); + if (fgets (input, capacity, fp) != NULL) + { + chomp (input); + ret = true; + } + close_tty (fp); + } + else + { + char *gp = getpass (prompt); + if (gp) + { + strncpynt (input, gp, capacity); + memset (gp, 0, strlen (gp)); + ret = true; + } + } +#else + msg (M_FATAL, "Sorry, but I can't get console input on this OS"); +#endif + return ret; +} diff --git a/src/openvpn/console.h b/src/openvpn/console.h new file mode 100644 index 0000000..268f3fe --- /dev/null +++ b/src/openvpn/console.h @@ -0,0 +1,33 @@ +/* + * OpenVPN -- An application to securely tunnel IP networks + * over a single UDP port, with support for SSL/TLS-based + * session authentication and key exchange, + * packet encryption, packet authentication, and + * packet compression. + * + * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * 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 (see the file COPYING included with this + * distribution); if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef CONSOLE_H +#define CONSOLE_H + +#include "basic.h" + +bool +get_console_input (const char *prompt, const bool echo, char *input, const int capacity); + +#endif diff --git a/src/openvpn/misc.c b/src/openvpn/misc.c index 07beaf0..2571194 100644 --- a/src/openvpn/misc.c +++ b/src/openvpn/misc.c @@ -41,6 +41,7 @@ #include "manage.h" #include "crypto.h" #include "route.h" +#include "console.h" #include "win32.h" #include "memdbg.h" @@ -1373,130 +1374,6 @@ absolute_pathname (const char *pathname) return false; } -#ifdef HAVE_GETPASS - -static FILE * -open_tty (const bool write) -{ - FILE *ret; - ret = fopen ("/dev/tty", write ? "w" : "r"); - if (!ret) - ret = write ? stderr : stdin; - return ret; -} - -static void -close_tty (FILE *fp) -{ - if (fp != stderr && fp != stdin) - fclose (fp); -} - -#endif - -/* - * is systemd running - */ - -#if defined(TARGET_LINUX) && defined(ENABLE_SYSTEMD) -bool -check_systemd_running () -{ - struct stat a, b; - - /* We simply test whether the systemd cgroup hierarchy is - * mounted */ - - return (lstat("/sys/fs/cgroup", &a) == 0) - && (lstat("/sys/fs/cgroup/systemd", &b) == 0) - && (a.st_dev != b.st_dev); - -} - -bool -get_console_input_systemd (const char *prompt, const bool echo, char *input, const int capacity) -{ - int std_out; - char cmd[256]; - bool ret = false; - struct argv argv; - - argv_init (&argv); - argv_printf (&argv, "/bin/systemd-ask-password"); - argv_printf_cat (&argv, "%s", prompt); - - if ((std_out = openvpn_popen (&argv, NULL)) < 0) { - return false; - } - CLEAR (*input); - if (read (std_out, input, capacity) != 0) - { - chomp (input); - ret = true; - } - close (std_out); - - argv_reset (&argv); - - return ret; -} - - -#endif - -/* - * Get input from console - */ -bool -get_console_input (const char *prompt, const bool echo, char *input, const int capacity) -{ - bool ret = false; - ASSERT (prompt); - ASSERT (input); - ASSERT (capacity > 0); - input[0] = '\0'; - -#if defined(TARGET_LINUX) && defined(ENABLE_SYSTEMD) - if (check_systemd_running ()) - return get_console_input_systemd (prompt, echo, input, capacity); -#endif - -#if defined(WIN32) - return get_console_input_win32 (prompt, echo, input, capacity); -#elif defined(HAVE_GETPASS) - if (echo) - { - FILE *fp; - - fp = open_tty (true); - fprintf (fp, "%s", prompt); - fflush (fp); - close_tty (fp); - - fp = open_tty (false); - if (fgets (input, capacity, fp) != NULL) - { - chomp (input); - ret = true; - } - close_tty (fp); - } - else - { - char *gp = getpass (prompt); - if (gp) - { - strncpynt (input, gp, capacity); - memset (gp, 0, strlen (gp)); - ret = true; - } - } -#else - msg (M_FATAL, "Sorry, but I can't get console input on this OS"); -#endif - return ret; -} - /* * Get and store a username/password */ diff --git a/src/openvpn/misc.h b/src/openvpn/misc.h index 9bb2fa2..12a8f71 100644 --- a/src/openvpn/misc.h +++ b/src/openvpn/misc.h @@ -128,6 +128,7 @@ bool system_executed (int stat); const char *system_error_message (int, struct gc_arena *gc); /* wrapper around the execve() call */ +int openvpn_popen (const struct argv *a, const struct env_set *es); int openvpn_execve (const struct argv *a, const struct env_set *es, const unsigned int flags); bool openvpn_execve_check (const struct argv *a, const struct env_set *es, const unsigned int flags, const char *error_message); bool openvpn_execve_allowed (const unsigned int flags); @@ -322,8 +323,6 @@ struct auth_challenge_info {}; struct static_challenge_info {}; #endif -bool get_console_input (const char *prompt, const bool echo, char *input, const int capacity); - /* * Flags for get_user_pass and management_query_user_pass */ diff --git a/src/openvpn/openvpn.vcproj b/src/openvpn/openvpn.vcproj index 45c0a77..6c19621 100644 --- a/src/openvpn/openvpn.vcproj +++ b/src/openvpn/openvpn.vcproj @@ -191,6 +191,10 @@ > </File> <File + RelativePath=".\console.c" + > + </File> + <File RelativePath=".\crypto.c" > </File> @@ -457,6 +461,10 @@ > </File> <File + RelativePath=".\console.h" + > + </File> + <File RelativePath=".\crypto.h" > </File> diff --git a/src/openvpn/pkcs11.c b/src/openvpn/pkcs11.c index 2189208..fd609d4 100644 --- a/src/openvpn/pkcs11.c +++ b/src/openvpn/pkcs11.c @@ -40,6 +40,7 @@ #include "pkcs11.h" #include "misc.h" #include "otime.h" +#include "console.h" #include "pkcs11_backend.h" static diff --git a/src/openvpn/win32.c b/src/openvpn/win32.c index d7bf514..e94343b 100644 --- a/src/openvpn/win32.c +++ b/src/openvpn/win32.c @@ -514,7 +514,7 @@ win32_signal_close (struct win32_signal *ws) /* * Return true if interrupt occurs in service mode. */ -static bool +bool win32_service_interrupt (struct win32_signal *ws) { if (ws->mode == WSO_MODE_SERVICE) @@ -740,91 +740,6 @@ netcmd_semaphore_release (void) } /* - * Get input from console. - * - * Return false on input error, or if service - * exit event is signaled. - */ - -bool -get_console_input_win32 (const char *prompt, const bool echo, char *input, const int capacity) -{ - HANDLE in = INVALID_HANDLE_VALUE; - HANDLE err = INVALID_HANDLE_VALUE; - DWORD len = 0; - - ASSERT (prompt); - ASSERT (input); - ASSERT (capacity > 0); - - input[0] = '\0'; - - in = GetStdHandle (STD_INPUT_HANDLE); - err = get_orig_stderr (); - - if (in != INVALID_HANDLE_VALUE - && err != INVALID_HANDLE_VALUE - && !win32_service_interrupt (&win32_signal) - && WriteFile (err, prompt, strlen (prompt), &len, NULL)) - { - bool is_console = (GetFileType (in) == FILE_TYPE_CHAR); - DWORD flags_save = 0; - int status = 0; - WCHAR *winput; - - if (is_console) - { - if (GetConsoleMode (in, &flags_save)) - { - DWORD flags = ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT; - if (echo) - flags |= ENABLE_ECHO_INPUT; - SetConsoleMode (in, flags); - } - else - is_console = 0; - } - - if (is_console) - { - winput = malloc (capacity * sizeof (WCHAR)); - if (winput == NULL) - return false; - - status = ReadConsoleW (in, winput, capacity, &len, NULL); - WideCharToMultiByte (CP_UTF8, 0, winput, len, input, capacity, NULL, NULL); - free (winput); - } - else - status = ReadFile (in, input, capacity, &len, NULL); - - string_null_terminate (input, (int)len, capacity); - chomp (input); - - if (!echo) - WriteFile (err, "\r\n", 2, &len, NULL); - if (is_console) - SetConsoleMode (in, flags_save); - if (status && !win32_service_interrupt (&win32_signal)) - return true; - } - - return false; -} - -/* get password from console */ - -char * -getpass (const char *prompt) -{ - static char line[256]; - if (get_console_input_win32 (prompt, false, line, sizeof (line))) - return line; - else - return NULL; -} - -/* * Return true if filename is safe to be used on Windows, * by avoiding the following reserved names: * diff --git a/src/openvpn/win32.h b/src/openvpn/win32.h index d87e987..cc18f02 100644 --- a/src/openvpn/win32.h +++ b/src/openvpn/win32.h @@ -166,6 +166,8 @@ int win32_signal_get (struct win32_signal *ws); void win32_pause (struct win32_signal *ws); +bool win32_service_interrupt (struct win32_signal *ws); + /* * Set the text on the window title bar */ @@ -246,9 +248,6 @@ void netcmd_semaphore_close (void); void netcmd_semaphore_lock (void); void netcmd_semaphore_release (void); -bool get_console_input_win32 (const char *prompt, const bool echo, char *input, const int capacity); -char *getpass (const char *prompt); - /* Set Win32 security attributes structure to allow all access */ bool init_security_attributes_allow_all (struct security_attributes *obj); |