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Re: [Openvpn-devel] [PATCH 49/52] build: move wrappers into platform module
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From: Samuli S. <sa...@op...> - 2012-03-09 08:24:41
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Thanks for the clarifications! I like the idea of moving some
functionality into more general-purpose libraries whenever possible.
Those libraries could then be - at least theoretically - used by other
projects, so that the code gets more exposure and testing, as well as
taking some of the maintenance load of our shoulders.
I give this one a feature-ACK, but could somebody else take a better
look at the actual code changes?
--
Samuli Seppänen
Community Manager
OpenVPN Technologies, Inc
irc freenode net: mattock
> Well, at first I wanted to split it into its own libplatform distinct
> from libcompat.
>
> libcompat - emulation of missing library functions, drop-in replacement.
> libplatform - extensions to library functions, such as unicode or
> security additions.
>
> But then I've seen that there is too much openvpn specific logic,
> especially in log messages. So I left what I would have placed in
> libplatform in platform.c for now.
>
> After this round we should consider if we want to progress in this.
>
> One missing part is the exec wrappers which needs some work before
> moving to platform.
>
> Alon.
>
> 2012/3/8 Samuli Seppänen <sa...@op...>:
>> This probably makes sense, lots of good refactorings. That said, I'd
>> like to know how you selected what goes to platform.c?
>>
>> --
>> Samuli Seppänen
>> Community Manager
>> OpenVPN Technologies, Inc
>>
>> irc freenode net: mattock
>>
>>
>>> + Some fixups within the platform.c functions.
>>> - need to check environment set on Windows.
>>>
>>> Signed-off-by: Alon Bar-Lev <alo...@gm...>
>>> ---
>>> src/openvpn/Makefile.am | 1 +
>>> src/openvpn/buffer.c | 2 +-
>>> src/openvpn/crypto.c | 6 +-
>>> src/openvpn/error.c | 2 +-
>>> src/openvpn/init.c | 18 +-
>>> src/openvpn/manage.c | 16 +-
>>> src/openvpn/misc.c | 295 ++----------------------------------
>>> src/openvpn/misc.h | 106 +-------------
>>> src/openvpn/mstats.c | 2 +-
>>> src/openvpn/multi.c | 2 +-
>>> src/openvpn/openvpn.h | 4 +-
>>> src/openvpn/openvpn.vcproj | 8 +
>>> src/openvpn/options.c | 14 +-
>>> src/openvpn/packet_id.c | 2 +-
>>> src/openvpn/pf.c | 6 +-
>>> src/openvpn/platform.c | 369 ++++++++++++++++++++++++++++++++++++++++++++
>>> src/openvpn/platform.h | 142 +++++++++++++++++
>>> src/openvpn/ps.c | 2 +-
>>> src/openvpn/ssl_openssl.c | 2 +-
>>> src/openvpn/ssl_verify.c | 8 +-
>>> src/openvpn/status.c | 6 +-
>>> src/openvpn/tun.c | 12 +-
>>> src/openvpn/win32.c | 27 ----
>>> 23 files changed, 584 insertions(+), 468 deletions(-)
>>> create mode 100644 src/openvpn/platform.c
>>> create mode 100644 src/openvpn/platform.h
>>>
>>> diff --git a/src/openvpn/Makefile.am b/src/openvpn/Makefile.am
>>> index 333eebc..6ba12b8 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 \
>>> + platform.c platform.h \
>>> console.c console.h \
>>> mroute.c mroute.h \
>>> mss.c mss.h \
>>> diff --git a/src/openvpn/buffer.c b/src/openvpn/buffer.c
>>> index ad30223..5eee3ee 100644
>>> --- a/src/openvpn/buffer.c
>>> +++ b/src/openvpn/buffer.c
>>> @@ -1080,7 +1080,7 @@ buffer_list_advance (struct buffer_list *ol, int n)
>>> struct buffer_list *
>>> buffer_list_file (const char *fn, int max_line_len)
>>> {
>>> - FILE *fp = openvpn_fopen (fn, "r");
>>> + FILE *fp = platform_fopen (fn, "r");
>>> struct buffer_list *bl = NULL;
>>>
>>> if (fp)
>>> diff --git a/src/openvpn/crypto.c b/src/openvpn/crypto.c
>>> index 2e2e5d7..f811966 100644
>>> --- a/src/openvpn/crypto.c
>>> +++ b/src/openvpn/crypto.c
>>> @@ -868,7 +868,7 @@ read_key_file (struct key2 *key2, const char *file, const unsigned int flags)
>>> #endif
>>> {
>>> in = alloc_buf_gc (2048, &gc);
>>> - fd = openvpn_open (file, O_RDONLY, 0);
>>> + fd = platform_open (file, O_RDONLY, 0);
>>> if (fd == -1)
>>> msg (M_ERR, "Cannot open file key file '%s'", file);
>>> size = read (fd, in.data, in.capacity);
>>> @@ -1029,7 +1029,7 @@ read_passphrase_hash (const char *passphrase_file,
>>> const int min_passphrase_size = 8;
>>> uint8_t buf[64];
>>> int total_size = 0;
>>> - int fd = openvpn_open (passphrase_file, O_RDONLY, 0);
>>> + int fd = platform_open (passphrase_file, O_RDONLY, 0);
>>>
>>> if (fd == -1)
>>> msg (M_ERR, "Cannot open passphrase file: '%s'", passphrase_file);
>>> @@ -1079,7 +1079,7 @@ write_key_file (const int nkeys, const char *filename)
>>> const int bytes_per_line = 16;
>>>
>>> /* open key file */
>>> - fd = openvpn_open (filename, O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR);
>>> + fd = platform_open (filename, O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR);
>>>
>>> if (fd == -1)
>>> msg (M_ERR, "Cannot open shared secret file '%s' for write", filename);
>>> diff --git a/src/openvpn/error.c b/src/openvpn/error.c
>>> index 1f2dd86..d6ad639 100644
>>> --- a/src/openvpn/error.c
>>> +++ b/src/openvpn/error.c
>>> @@ -640,7 +640,7 @@ x_check_status (int status,
>>> my_errno);
>>>
>>> if (x_cs_err_delay_ms)
>>> - sleep_milliseconds (x_cs_err_delay_ms);
>>> + platform_sleep_milliseconds (x_cs_err_delay_ms);
>>> }
>>> gc_free (&gc);
>>> }
>>> diff --git a/src/openvpn/init.c b/src/openvpn/init.c
>>> index bba3cf8..bc7718e 100644
>>> --- a/src/openvpn/init.c
>>> +++ b/src/openvpn/init.c
>>> @@ -935,7 +935,7 @@ do_genkey (const struct options * options)
>>> "shared secret output file (--secret)");
>>>
>>> if (options->mlock) /* should we disable paging? */
>>> - do_mlockall (true);
>>> + platform_mlockall (true);
>>>
>>> nbits_written = write_key_file (2, options->shared_secret_file);
>>>
>>> @@ -1022,7 +1022,7 @@ do_uid_gid_chroot (struct context *c, bool no_delay)
>>> if (c->options.chroot_dir)
>>> {
>>> if (no_delay)
>>> - do_chroot (c->options.chroot_dir);
>>> + platform_chroot (c->options.chroot_dir);
>>> else
>>> msg (M_INFO, "NOTE: chroot %s", why_not);
>>> }
>>> @@ -1030,8 +1030,8 @@ do_uid_gid_chroot (struct context *c, bool no_delay)
>>> /* set user and/or group that we want to setuid/setgid to */
>>> if (no_delay)
>>> {
>>> - set_group (&c0->group_state);
>>> - set_user (&c0->user_state);
>>> + platform_group_set (&c0->platform_state_group);
>>> + platform_user_set (&c0->platform_state_user);
>>> c0->uid_gid_set = true;
>>> }
>>> else if (c0->uid_gid_specified)
>>> @@ -2780,8 +2780,8 @@ do_init_first_time (struct context *c)
>>>
>>> /* get user and/or group that we want to setuid/setgid to */
>>> c0->uid_gid_specified =
>>> - get_group (c->options.groupname, &c0->group_state) |
>>> - get_user (c->options.username, &c0->user_state);
>>> + platform_group_get (c->options.groupname, &c0->platform_state_group) |
>>> + platform_user_get (c->options.username, &c0->platform_state_user);
>>>
>>> /* get --writepid file descriptor */
>>> get_pid_file (c->options.writepid, &c0->pid_state);
>>> @@ -2791,13 +2791,13 @@ do_init_first_time (struct context *c)
>>>
>>> /* should we disable paging? */
>>> if (c->options.mlock && c->did_we_daemonize)
>>> - do_mlockall (true); /* call again in case we daemonized */
>>> + platform_mlockall (true); /* call again in case we daemonized */
>>>
>>> /* save process ID in a file */
>>> write_pid (&c0->pid_state);
>>>
>>> /* should we change scheduling priority? */
>>> - set_nice (c->options.nice);
>>> + platform_nice (c->options.nice);
>>> }
>>> }
>>>
>>> @@ -3342,7 +3342,7 @@ init_instance (struct context *c, const struct env_set *env, const unsigned int
>>>
>>> /* should we disable paging? */
>>> if (c->first_time && options->mlock)
>>> - do_mlockall (true);
>>> + platform_mlockall (true);
>>>
>>> #if P2MP
>>> /* get passwords if undefined */
>>> diff --git a/src/openvpn/manage.c b/src/openvpn/manage.c
>>> index 85c9aca..1dddd41 100644
>>> --- a/src/openvpn/manage.c
>>> +++ b/src/openvpn/manage.c
>>> @@ -1146,7 +1146,7 @@ man_dispatch_command (struct management *man, struct status_output *so, const ch
>>> }
>>> else if (streq (p[0], "pid"))
>>> {
>>> - msg (M_CLIENT, "SUCCESS: pid=%d", openvpn_getpid ());
>>> + msg (M_CLIENT, "SUCCESS: pid=%d", platform_getpid ());
>>> }
>>> #ifdef MANAGEMENT_DEF_AUTH
>>> else if (streq (p[0], "nclients"))
>>> @@ -1429,7 +1429,7 @@ man_record_peer_info (struct management *man)
>>> {
>>> const in_addr_t a = ntohl (addr.sin_addr.s_addr);
>>> const int p = ntohs (addr.sin_port);
>>> - FILE *fp = openvpn_fopen (man->settings.write_peer_info_file, "w");
>>> + FILE *fp = platform_fopen (man->settings.write_peer_info_file, "w");
>>> if (fp)
>>> {
>>> fprintf (fp, "%s\n%d\n", print_in_addr_t (a, 0, &gc), p);
>>> @@ -2013,17 +2013,17 @@ man_settings_init (struct man_settings *ms,
>>> */
>>> if (client_user)
>>> {
>>> - struct user_state s;
>>> - get_user (client_user, &s);
>>> - ms->client_uid = user_state_uid (&s);
>>> + struct platform_state_user s;
>>> + platform_user_get (client_user, &s);
>>> + ms->client_uid = platform_state_user_uid (&s);
>>> msg (D_MANAGEMENT, "MANAGEMENT: client_uid=%d", ms->client_uid);
>>> ASSERT (ms->client_uid >= 0);
>>> }
>>> if (client_group)
>>> {
>>> - struct group_state s;
>>> - get_group (client_group, &s);
>>> - ms->client_gid = group_state_gid (&s);
>>> + struct platform_state_group s;
>>> + platform_group_get (client_group, &s);
>>> + ms->client_gid = platform_state_group_gid (&s);
>>> msg (D_MANAGEMENT, "MANAGEMENT: client_gid=%d", ms->client_gid);
>>> ASSERT (ms->client_gid >= 0);
>>> }
>>> diff --git a/src/openvpn/misc.c b/src/openvpn/misc.c
>>> index 2571194..2ded9bf 100644
>>> --- a/src/openvpn/misc.c
>>> +++ b/src/openvpn/misc.c
>>> @@ -56,122 +56,6 @@ int script_security = SSEC_BUILT_IN; /* GLOBAL */
>>> /* contains SM_x value defined in misc.h */
>>> int script_method = SM_EXECVE; /* GLOBAL */
>>>
>>> -/* Redefine the top level directory of the filesystem
>>> - to restrict access to files for security */
>>> -void
>>> -do_chroot (const char *path)
>>> -{
>>> - if (path)
>>> - {
>>> -#ifdef HAVE_CHROOT
>>> - const char *top = "/";
>>> - if (chroot (path))
>>> - msg (M_ERR, "chroot to '%s' failed", path);
>>> - if (openvpn_chdir (top))
>>> - msg (M_ERR, "cd to '%s' failed", top);
>>> - msg (M_INFO, "chroot to '%s' and cd to '%s' succeeded", path, top);
>>> -#else
>>> - msg (M_FATAL, "Sorry but I can't chroot to '%s' because this operating system doesn't appear to support the chroot() system call", path);
>>> -#endif
>>> - }
>>> -}
>>> -
>>> -/* Get/Set UID of process */
>>> -
>>> -bool
>>> -get_user (const char *username, struct user_state *state)
>>> -{
>>> - bool ret = false;
>>> - CLEAR (*state);
>>> - if (username)
>>> - {
>>> -#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> - state->pw = getpwnam (username);
>>> - if (!state->pw)
>>> - msg (M_ERR, "failed to find UID for user %s", username);
>>> - state->username = username;
>>> - ret = true;
>>> -#else
>>> - msg (M_FATAL, "cannot get UID for user %s -- platform lacks getpwname() or setuid() system calls", username);
>>> -#endif
>>> - }
>>> - return ret;
>>> -}
>>> -
>>> -void
>>> -set_user (const struct user_state *state)
>>> -{
>>> -#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> - if (state->username && state->pw)
>>> - {
>>> - if (setuid (state->pw->pw_uid))
>>> - msg (M_ERR, "setuid('%s') failed", state->username);
>>> - msg (M_INFO, "UID set to %s", state->username);
>>> - }
>>> -#endif
>>> -}
>>> -
>>> -/* Get/Set GID of process */
>>> -
>>> -bool
>>> -get_group (const char *groupname, struct group_state *state)
>>> -{
>>> - bool ret = false;
>>> - CLEAR (*state);
>>> - if (groupname)
>>> - {
>>> -#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> - state->gr = getgrnam (groupname);
>>> - if (!state->gr)
>>> - msg (M_ERR, "failed to find GID for group %s", groupname);
>>> - state->groupname = groupname;
>>> - ret = true;
>>> -#else
>>> - msg (M_FATAL, "cannot get GID for group %s -- platform lacks getgrnam() or setgid() system calls", groupname);
>>> -#endif
>>> - }
>>> - return ret;
>>> -}
>>> -
>>> -void
>>> -set_group (const struct group_state *state)
>>> -{
>>> -#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> - if (state->groupname && state->gr)
>>> - {
>>> - if (setgid (state->gr->gr_gid))
>>> - msg (M_ERR, "setgid('%s') failed", state->groupname);
>>> - msg (M_INFO, "GID set to %s", state->groupname);
>>> -#ifdef HAVE_SETGROUPS
>>> - {
>>> - gid_t gr_list[1];
>>> - gr_list[0] = state->gr->gr_gid;
>>> - if (setgroups (1, gr_list))
>>> - msg (M_ERR, "setgroups('%s') failed", state->groupname);
>>> - }
>>> -#endif
>>> - }
>>> -#endif
>>> -}
>>> -
>>> -/* Change process priority */
>>> -void
>>> -set_nice (int niceval)
>>> -{
>>> - if (niceval)
>>> - {
>>> -#ifdef HAVE_NICE
>>> - errno = 0;
>>> - if (nice (niceval) < 0 && errno != 0)
>>> - msg (M_WARN | M_ERRNO, "WARNING: nice %d failed: %s", niceval, strerror(errno));
>>> - else
>>> - msg (M_INFO, "nice %d succeeded", niceval);
>>> -#else
>>> - msg (M_WARN, "WARNING: nice %d failed (function not implemented)", niceval);
>>> -#endif
>>> - }
>>> -}
>>> -
>>> /*
>>> * Pass tunnel endpoint and MTU parms to a user-supplied script.
>>> * Used to execute the up/down script/plugins.
>>> @@ -253,7 +137,7 @@ get_pid_file (const char* filename, struct pid_state *state)
>>> CLEAR (*state);
>>> if (filename)
>>> {
>>> - state->fp = openvpn_fopen (filename, "w");
>>> + state->fp = platform_fopen (filename, "w");
>>> if (!state->fp)
>>> msg (M_ERR, "Open error on pid file %s", filename);
>>> state->filename = filename;
>>> @@ -266,42 +150,13 @@ write_pid (const struct pid_state *state)
>>> {
>>> if (state->filename && state->fp)
>>> {
>>> - unsigned int pid = openvpn_getpid ();
>>> + unsigned int pid = platform_getpid ();
>>> fprintf(state->fp, "%u\n", pid);
>>> if (fclose (state->fp))
>>> msg (M_ERR, "Close error on pid file %s", state->filename);
>>> }
>>> }
>>>
>>> -/* Get current PID */
>>> -unsigned int
>>> -openvpn_getpid ()
>>> -{
>>> -#ifdef WIN32
>>> - return (unsigned int) GetCurrentProcessId ();
>>> -#else
>>> -#ifdef HAVE_GETPID
>>> - return (unsigned int) getpid ();
>>> -#else
>>> - return 0;
>>> -#endif
>>> -#endif
>>> -}
>>> -
>>> -/* Disable paging */
>>> -void
>>> -do_mlockall(bool print_msg)
>>> -{
>>> -#ifdef HAVE_MLOCKALL
>>> - if (mlockall (MCL_CURRENT | MCL_FUTURE))
>>> - msg (M_WARN | M_ERRNO, "WARNING: mlockall call failed");
>>> - else if (print_msg)
>>> - msg (M_INFO, "mlockall call succeeded");
>>> -#else
>>> - msg (M_WARN, "WARNING: mlockall call failed (function not implemented)");
>>> -#endif
>>> -}
>>> -
>>> /*
>>> * Set standard file descriptors to /dev/null
>>> */
>>> @@ -325,27 +180,6 @@ set_std_files_to_null (bool stdin_only)
>>> }
>>>
>>> /*
>>> - * Wrapper for chdir library function
>>> - */
>>> -int
>>> -openvpn_chdir (const char* dir)
>>> -{
>>> -#ifdef HAVE_CHDIR
>>> -#ifdef WIN32
>>> - int res;
>>> - struct gc_arena gc = gc_new ();
>>> - res = _wchdir (wide_string (dir, &gc));
>>> - gc_free (&gc);
>>> - return res;
>>> -#else
>>> - return chdir (dir);
>>> -#endif
>>> -#else
>>> - return -1;
>>> -#endif
>>> -}
>>> -
>>> -/*
>>> * dup inetd/xinetd socket descriptor and save
>>> */
>>>
>>> @@ -391,32 +225,6 @@ warn_if_group_others_accessible (const char* filename)
>>> }
>>>
>>> /*
>>> - * convert system() return into a success/failure value
>>> - */
>>> -bool
>>> -system_ok (int stat)
>>> -{
>>> -#ifdef WIN32
>>> - return stat == 0;
>>> -#else
>>> - return stat != -1 && WIFEXITED (stat) && WEXITSTATUS (stat) == 0;
>>> -#endif
>>> -}
>>> -
>>> -/*
>>> - * did system() call execute the given command?
>>> - */
>>> -bool
>>> -system_executed (int stat)
>>> -{
>>> -#ifdef WIN32
>>> - return stat != -1;
>>> -#else
>>> - return stat != -1 && WEXITSTATUS (stat) != 127;
>>> -#endif
>>> -}
>>> -
>>> -/*
>>> * Print an error message based on the status code returned by system().
>>> */
>>> const char *
>>> @@ -456,7 +264,7 @@ openvpn_execve_check (const struct argv *a, const struct env_set *es, const unsi
>>> const int stat = openvpn_execve (a, es, flags);
>>> int ret = false;
>>>
>>> - if (system_ok (stat))
>>> + if (platform_system_ok (stat))
>>> ret = true;
>>> else
>>> {
>>> @@ -554,7 +362,6 @@ openvpn_system (const char *command, const struct env_set *es, unsigned int flag
>>> {
>>> #ifdef HAVE_SYSTEM
>>> int ret;
>>> - struct gc_arena gc;
>>>
>>> perf_push (PERF_SCRIPT);
>>>
>>> @@ -573,13 +380,7 @@ openvpn_system (const char *command, const struct env_set *es, unsigned int flag
>>> /*
>>> * execute the command
>>> */
>>> -#ifdef WIN32
>>> - gc = gc_new ();
>>> - ret = _wsystem (wide_string (command, &gc));
>>> - gc_free (&gc);
>>> -#else
>>> - ret = system (command);
>>> -#endif
>>> + ret = platform_system(command);
>>>
>>> /* debugging */
>>> dmsg (D_SCRIPT, "SYSTEM return=%u", ret);
>>> @@ -599,19 +400,6 @@ openvpn_system (const char *command, const struct env_set *es, unsigned int flag
>>> #endif
>>> }
>>>
>>> -int
>>> -openvpn_access (const char *path, int mode)
>>> -{
>>> -#ifdef WIN32
>>> - struct gc_arena gc = gc_new ();
>>> - int ret = _waccess (wide_string (path, &gc), mode);
>>> - gc_free (&gc);
>>> - return ret;
>>> -#else
>>> - return access (path, mode);
>>> -#endif
>>> -}
>>> -
>>> /*
>>> * Run execve() inside a fork(), duping stdout. Designed to replicate the semantics of popen() but
>>> * in a safer way that doesn't require the invocation of a shell or the risks
>>> @@ -981,7 +769,7 @@ env_set_remove_from_environment (const struct env_set *es)
>>>
>>> static struct env_item *global_env = NULL; /* GLOBAL */
>>>
>>> -static void
>>> +void
>>> manage_env (char *str)
>>> {
>>> remove_env_item (str, true, &global_env);
>>> @@ -1078,27 +866,11 @@ setenv_str_ex (struct env_set *es,
>>> }
>>> else
>>> {
>>> -#if defined(WIN32)
>>> + char *str = construct_name_value (name_tmp, val_tmp, NULL);
>>> + if (platform_putenv(str))
>>> {
>>> - if (!SetEnvironmentVariableW (wide_string (name_tmp, &gc),
>>> - wide_string (val_tmp, &gc)))
>>> - msg (M_WARN | M_ERRNO, "SetEnvironmentVariable failed, name='%s', value='%s'",
>>> - name_tmp,
>>> - val_tmp ? val_tmp : "NULL");
>>> + msg (M_WARN | M_ERRNO, "putenv('%s') failed", str);
>>> }
>>> -#elif defined(HAVE_PUTENV)
>>> - {
>>> - char *str = construct_name_value (name_tmp, val_tmp, NULL);
>>> - int status;
>>> -
>>> - status = putenv (str);
>>> - /*msg (M_INFO, "PUTENV '%s'", str);*/
>>> - if (!status)
>>> - manage_env (str);
>>> - if (status)
>>> - msg (M_WARN | M_ERRNO, "putenv('%s') failed", str);
>>> - }
>>> -#endif
>>> }
>>>
>>> gc_free (&gc);
>>> @@ -1162,35 +934,6 @@ count_netmask_bits(const char *dotted_quad)
>>> return ((int)result);
>>> }
>>>
>>> -/*
>>> - * Go to sleep for n milliseconds.
>>> - */
>>> -void
>>> -sleep_milliseconds (unsigned int n)
>>> -{
>>> -#ifdef WIN32
>>> - Sleep (n);
>>> -#else
>>> - struct timeval tv;
>>> - tv.tv_sec = n / 1000;
>>> - tv.tv_usec = (n % 1000) * 1000;
>>> - select (0, NULL, NULL, NULL, &tv);
>>> -#endif
>>> -}
>>> -
>>> -/*
>>> - * Go to sleep indefinitely.
>>> - */
>>> -void
>>> -sleep_until_signal (void)
>>> -{
>>> -#ifdef WIN32
>>> - ASSERT (0);
>>> -#else
>>> - select (0, NULL, NULL, NULL, NULL);
>>> -#endif
>>> -}
>>> -
>>> /* return true if filename can be opened for read */
>>> bool
>>> test_file (const char *filename)
>>> @@ -1198,7 +941,7 @@ test_file (const char *filename)
>>> bool ret = false;
>>> if (filename)
>>> {
>>> - FILE *fp = openvpn_fopen (filename, "r");
>>> + FILE *fp = platform_fopen (filename, "r");
>>> if (fp)
>>> {
>>> fclose (fp);
>>> @@ -1246,7 +989,7 @@ create_temp_file (const char *directory, const char *prefix, struct gc_arena *gc
>>>
>>> /* Atomically create the file. Errors out if the file already
>>> exists. */
>>> - fd = openvpn_open (retfname, O_CREAT | O_EXCL | O_WRONLY, S_IRUSR | S_IWUSR);
>>> + fd = platform_open (retfname, O_CREAT | O_EXCL | O_WRONLY, S_IRUSR | S_IWUSR);
>>> if (fd != -1)
>>> {
>>> close (fd);
>>> @@ -1342,22 +1085,6 @@ gen_path (const char *directory, const char *filename, struct gc_arena *gc)
>>> return NULL;
>>> }
>>>
>>> -/* delete a file, return true if succeeded */
>>> -bool
>>> -delete_file (const char *filename)
>>> -{
>>> -#if defined(WIN32)
>>> - struct gc_arena gc = gc_new ();
>>> - BOOL ret = DeleteFileW (wide_string (filename, &gc));
>>> - gc_free (&gc);
>>> - return (ret != 0);
>>> -#elif defined(HAVE_UNLINK)
>>> - return (unlink (filename) == 0);
>>> -#else
>>> - return false;
>>> -#endif
>>> -}
>>> -
>>> bool
>>> absolute_pathname (const char *pathname)
>>> {
>>> @@ -1524,7 +1251,7 @@ get_user_pass_cr (struct user_pass *up,
>>>
>>> warn_if_group_others_accessible (auth_file);
>>>
>>> - fp = openvpn_fopen (auth_file, "r");
>>> + fp = platform_fopen (auth_file, "r");
>>> if (!fp)
>>> msg (M_ERR, "Error opening '%s' auth file: %s", prefix, auth_file);
>>>
>>> diff --git a/src/openvpn/misc.h b/src/openvpn/misc.h
>>> index 12a8f71..d4c8e33 100644
>>> --- a/src/openvpn/misc.h
>>> +++ b/src/openvpn/misc.h
>>> @@ -29,6 +29,7 @@
>>> #include "common.h"
>>> #include "integer.h"
>>> #include "buffer.h"
>>> +#include "platform.h"
>>>
>>> /* socket descriptor passed by inetd/xinetd server to us */
>>> #define INETD_SOCKET_DESCRIPTOR 0
>>> @@ -58,37 +59,6 @@ struct env_set {
>>> struct env_item *list;
>>> };
>>>
>>> -/* Get/Set UID of process */
>>> -
>>> -struct user_state {
>>> -#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> - const char *username;
>>> - struct passwd *pw;
>>> -#else
>>> - int dummy;
>>> -#endif
>>> -};
>>> -
>>> -bool get_user (const char *username, struct user_state *state);
>>> -void set_user (const struct user_state *state);
>>> -
>>> -/* Get/Set GID of process */
>>> -
>>> -struct group_state {
>>> -#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> - const char *groupname;
>>> - struct group *gr;
>>> -#else
>>> - int dummy;
>>> -#endif
>>> -};
>>> -
>>> -bool get_group (const char *groupname, struct group_state *state);
>>> -void set_group (const struct group_state *state);
>>> -
>>> -void set_nice (int niceval);
>>> -void do_chroot (const char *path);
>>> -
>>> void run_up_down (const char *command,
>>> const struct plugin_list *plugins,
>>> int plugin_type,
>>> @@ -111,9 +81,6 @@ struct pid_state {
>>>
>>> void get_pid_file (const char* filename, struct pid_state *state);
>>> void write_pid (const struct pid_state *state);
>>> -unsigned int openvpn_getpid (void);
>>> -
>>> -void do_mlockall (bool print_msg); /* Disable paging */
>>>
>>> /* check file protections */
>>> void warn_if_group_others_accessible(const char* filename);
>>> @@ -122,9 +89,6 @@ void warn_if_group_others_accessible(const char* filename);
>>> #define S_SCRIPT (1<<0)
>>> #define S_FATAL (1<<1)
>>>
>>> -/* interpret the status code returned by system()/execve() */
>>> -bool system_ok(int);
>>> -bool system_executed (int stat);
>>> const char *system_error_message (int, struct gc_arena *gc);
>>>
>>> /* wrapper around the execve() call */
>>> @@ -133,7 +97,6 @@ int openvpn_execve (const struct argv *a, const struct env_set *es, const unsign
>>> 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);
>>> int openvpn_system (const char *command, const struct env_set *es, unsigned int flags);
>>> -int openvpn_access (const char *path, int mode);
>>>
>>> static inline bool
>>> openvpn_run_script (const struct argv *a, const struct env_set *es, const unsigned int flags, const char *hook)
>>> @@ -144,37 +107,6 @@ openvpn_run_script (const struct argv *a, const struct env_set *es, const unsign
>>> return openvpn_execve_check(a, es, flags | S_SCRIPT, msg);
>>> }
>>>
>>> -#ifdef WIN32
>>> -FILE * openvpn_fopen (const char *path, const char *mode);
>>> -#else
>>> -static inline FILE *
>>> -openvpn_fopen (const char *path, const char *mode)
>>> -{
>>> - return fopen (path, mode);
>>> -}
>>> -#endif
>>> -
>>> -#ifdef WIN32
>>> -int openvpn_open (const char *path, int flags, int mode);
>>> -#else
>>> -static inline int
>>> -openvpn_open (const char *path, int flags, mode_t mode)
>>> -{
>>> - return open (path, flags, mode);
>>> -}
>>> -#endif
>>> -
>>> -#ifdef WIN32
>>> -typedef struct _stat openvpn_stat_t;
>>> -int openvpn_stat (const char *path, openvpn_stat_t *buf);
>>> -#else
>>> -typedef struct stat openvpn_stat_t;
>>> -static inline int
>>> -openvpn_stat (const char *path, openvpn_stat_t *buf)
>>> -{
>>> - return stat (path, buf);
>>> -}
>>> -#endif
>>>
>>> #ifdef HAVE_STRERROR
>>> /* a thread-safe version of strerror */
>>> @@ -184,9 +116,6 @@ const char* strerror_ts (int errnum, struct gc_arena *gc);
>>> /* Set standard file descriptors to /dev/null */
>>> void set_std_files_to_null (bool stdin_only);
>>>
>>> -/* Wrapper for chdir library function */
>>> -int openvpn_chdir (const char* dir);
>>> -
>>> /* dup inetd/xinetd socket descriptor and save */
>>> extern int inetd_socket_descriptor;
>>> void save_inetd_socket_descriptor (void);
>>> @@ -242,12 +171,6 @@ const char **make_extended_arg_array (char **p, struct gc_arena *gc);
>>> int count_netmask_bits(const char *);
>>> unsigned int count_bits(unsigned int );
>>>
>>> -/* go to sleep for n milliseconds */
>>> -void sleep_milliseconds (unsigned int n);
>>> -
>>> -/* go to sleep indefinitely */
>>> -void sleep_until_signal (void);
>>> -
>>> /* an analogue to the random() function, but use OpenSSL functions if available */
>>> #ifdef ENABLE_CRYPTO
>>> long int get_random(void);
>>> @@ -264,9 +187,6 @@ const char *create_temp_file (const char *directory, const char *prefix, struct
>>> /* put a directory and filename together */
>>> const char *gen_path (const char *directory, const char *filename, struct gc_arena *gc);
>>>
>>> -/* delete a file, return true if succeeded */
>>> -bool delete_file (const char *filename);
>>> -
>>> /* return true if pathname is absolute */
>>> bool absolute_pathname (const char *pathname);
>>>
>>> @@ -448,28 +368,4 @@ void argv_printf_cat (struct argv *a, const char *format, ...)
>>> #endif
>>> ;
>>>
>>> -/*
>>> - * Extract UID or GID
>>> - */
>>> -
>>> -static inline int
>>> -user_state_uid (const struct user_state *s)
>>> -{
>>> -#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> - if (s->pw)
>>> - return s->pw->pw_uid;
>>> -#endif
>>> - return -1;
>>> -}
>>> -
>>> -static inline int
>>> -group_state_gid (const struct group_state *s)
>>> -{
>>> -#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> - if (s->gr)
>>> - return s->gr->gr_gid;
>>> -#endif
>>> - return -1;
>>> -}
>>> -
>>> #endif
>>> diff --git a/src/openvpn/mstats.c b/src/openvpn/mstats.c
>>> index b4b864b..3be493c 100644
>>> --- a/src/openvpn/mstats.c
>>> +++ b/src/openvpn/mstats.c
>>> @@ -114,7 +114,7 @@ mstats_close(void)
>>> mmap_stats->state = MSTATS_EXPIRED;
>>> if (munmap((void *)mmap_stats, sizeof(struct mmap_stats)))
>>> msg (M_WARN | M_ERRNO, "mstats_close: munmap error");
>>> - delete_file(mmap_fn);
>>> + platform_unlink(mmap_fn);
>>> mmap_stats = NULL;
>>> }
>>> }
>>> diff --git a/src/openvpn/multi.c b/src/openvpn/multi.c
>>> index e79c6f1..9876b80 100644
>>> --- a/src/openvpn/multi.c
>>> +++ b/src/openvpn/multi.c
>>> @@ -1452,7 +1452,7 @@ multi_client_connect_post (struct multi_context *m,
>>> option_types_found,
>>> mi->context.c2.es);
>>>
>>> - if (!delete_file (dc_file))
>>> + if (!platform_unlink (dc_file))
>>> msg (D_MULTI_ERRORS, "MULTI: problem deleting temporary file: %s",
>>> dc_file);
>>>
>>> diff --git a/src/openvpn/openvpn.h b/src/openvpn/openvpn.h
>>> index b314885..0732d0f 100644
>>> --- a/src/openvpn/openvpn.h
>>> +++ b/src/openvpn/openvpn.h
>>> @@ -143,8 +143,8 @@ struct context_0
>>> /* workspace for --user/--group */
>>> bool uid_gid_specified;
>>> bool uid_gid_set;
>>> - struct user_state user_state;
>>> - struct group_state group_state;
>>> + struct platform_state_user platform_state_user;
>>> + struct platform_state_group platform_state_group;
>>> };
>>>
>>>
>>> diff --git a/src/openvpn/openvpn.vcproj b/src/openvpn/openvpn.vcproj
>>> index 6c19621..4680e52 100644
>>> --- a/src/openvpn/openvpn.vcproj
>>> +++ b/src/openvpn/openvpn.vcproj
>>> @@ -347,6 +347,10 @@
>>> >
>>> </File>
>>> <File
>>> + RelativePath=".\platform.c"
>>> + >
>>> + </File>
>>> + <File
>>> RelativePath=".\plugin.c"
>>> >
>>> </File>
>>> @@ -649,6 +653,10 @@
>>> >
>>> </File>
>>> <File
>>> + RelativePath=".\platform.h"
>>> + >
>>> + </File>
>>> + <File
>>> RelativePath=".\plugin.h"
>>> >
>>> </File>
>>> diff --git a/src/openvpn/options.c b/src/openvpn/options.c
>>> index 258b060..bd83843 100644
>>> --- a/src/openvpn/options.c
>>> +++ b/src/openvpn/options.c
>>> @@ -920,7 +920,7 @@ setenv_settings (struct env_set *es, const struct options *o)
>>> setenv_int (es, "daemon", o->daemon);
>>> setenv_int (es, "daemon_log_redirect", o->log);
>>> setenv_unsigned (es, "daemon_start_time", time(NULL));
>>> - setenv_int (es, "daemon_pid", openvpn_getpid());
>>> + setenv_int (es, "daemon_pid", platform_getpid());
>>>
>>> #ifdef ENABLE_CONNECTION
>>> if (o->connection_list)
>>> @@ -2640,18 +2640,18 @@ check_file_access(const int type, const char *file, const int mode, const char *
>>> char *fullpath = strdup(file); /* POSIX dirname() implementaion may modify its arguments */
>>> char *dirpath = dirname(fullpath);
>>>
>>> - if (openvpn_access (dirpath, mode|X_OK) != 0)
>>> + if (platform_access (dirpath, mode|X_OK) != 0)
>>> errcode = errno;
>>> free(fullpath);
>>> }
>>>
>>> /* Is the file itself accessible? */
>>> - if (!errcode && (type & CHKACC_FILE) && (openvpn_access (file, mode) != 0) )
>>> + if (!errcode && (type & CHKACC_FILE) && (platform_access (file, mode) != 0) )
>>> errcode = errno;
>>>
>>> /* If the file exists and is accessible, is it writable? */
>>> - if (!errcode && (type & CHKACC_FILEXSTWR) && (openvpn_access (file, F_OK) == 0) )
>>> - if (openvpn_access (file, W_OK) != 0)
>>> + if (!errcode && (type & CHKACC_FILEXSTWR) && (platform_access (file, F_OK) == 0) )
>>> + if (platform_access (file, W_OK) != 0)
>>> errcode = errno;
>>>
>>> /* Scream if an error is found */
>>> @@ -3755,7 +3755,7 @@ read_config_file (struct options *options,
>>> if (streq (file, "stdin"))
>>> fp = stdin;
>>> else
>>> - fp = openvpn_fopen (file, "r");
>>> + fp = platform_fopen (file, "r");
>>> if (fp)
>>> {
>>> line_num = 0;
>>> @@ -4528,7 +4528,7 @@ add_option (struct options *options,
>>> else if (streq (p[0], "cd") && p[1])
>>> {
>>> VERIFY_PERMISSION (OPT_P_GENERAL);
>>> - if (openvpn_chdir (p[1]))
>>> + if (platform_chdir (p[1]))
>>> {
>>> msg (M_ERR, "cd to '%s' failed", p[1]);
>>> goto err;
>>> diff --git a/src/openvpn/packet_id.c b/src/openvpn/packet_id.c
>>> index 186f074..0102129 100644
>>> --- a/src/openvpn/packet_id.c
>>> +++ b/src/openvpn/packet_id.c
>>> @@ -368,7 +368,7 @@ packet_id_persist_load (struct packet_id_persist *p, const char *filename)
>>> if (!packet_id_persist_enabled (p))
>>> {
>>> /* open packet-id persist file for both read and write */
>>> - p->fd = openvpn_open (filename,
>>> + p->fd = platform_open (filename,
>>> O_CREAT | O_RDWR | O_BINARY,
>>> S_IRUSR | S_IWUSR);
>>> if (p->fd == -1)
>>> diff --git a/src/openvpn/pf.c b/src/openvpn/pf.c
>>> index 729792e..7ed1e70 100644
>>> --- a/src/openvpn/pf.c
>>> +++ b/src/openvpn/pf.c
>>> @@ -504,8 +504,8 @@ pf_check_reload (struct context *c)
>>> && c->c2.pf.filename
>>> && event_timeout_trigger (&c->c2.pf.reload, &c->c2.timeval, ETT_DEFAULT))
>>> {
>>> - openvpn_stat_t s;
>>> - if (!openvpn_stat (c->c2.pf.filename, &s))
>>> + platform_stat_t s;
>>> + if (!platform_stat (c->c2.pf.filename, &s))
>>> {
>>> if (s.st_mtime > c->c2.pf.file_last_mod)
>>> {
>>> @@ -605,7 +605,7 @@ pf_destroy_context (struct pf_context *pfc)
>>> #ifdef PLUGIN_PF
>>> if (pfc->filename)
>>> {
>>> - delete_file (pfc->filename);
>>> + platform_unlink (pfc->filename);
>>> free (pfc->filename);
>>> }
>>> #endif
>>> diff --git a/src/openvpn/platform.c b/src/openvpn/platform.c
>>> new file mode 100644
>>> index 0000000..c79f680
>>> --- /dev/null
>>> +++ b/src/openvpn/platform.c
>>> @@ -0,0 +1,369 @@
>>> +/*
>>> + * OpenVPN -- An application to securely tunnel IP networks
>>> + * over a single TCP/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. <sa...@op...>
>>> + *
>>> + * 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 "buffer.h"
>>> +#include "error.h"
>>> +#include "win32.h"
>>> +
>>> +#include "memdbg.h"
>>> +
>>> +#include "platform.h"
>>> +
>>> +/* Redefine the top level directory of the filesystem
>>> + to restrict access to files for security */
>>> +void
>>> +platform_chroot (const char *path)
>>> +{
>>> + if (path)
>>> + {
>>> +#ifdef HAVE_CHROOT
>>> + const char *top = "/";
>>> + if (chroot (path))
>>> + msg (M_ERR, "chroot to '%s' failed", path);
>>> + if (platform_chdir (top))
>>> + msg (M_ERR, "cd to '%s' failed", top);
>>> + msg (M_INFO, "chroot to '%s' and cd to '%s' succeeded", path, top);
>>> +#else
>>> + msg (M_FATAL, "Sorry but I can't chroot to '%s' because this operating system doesn't appear to support the chroot() system call", path);
>>> +#endif
>>> + }
>>> +}
>>> +
>>> +/* Get/Set UID of process */
>>> +
>>> +bool
>>> +platform_user_get (const char *username, struct platform_state_user *state)
>>> +{
>>> + bool ret = false;
>>> + CLEAR (*state);
>>> + if (username)
>>> + {
>>> +#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> + state->pw = getpwnam (username);
>>> + if (!state->pw)
>>> + msg (M_ERR, "failed to find UID for user %s", username);
>>> + state->username = username;
>>> + ret = true;
>>> +#else
>>> + msg (M_FATAL, "cannot get UID for user %s -- platform lacks getpwname() or setuid() system calls", username);
>>> +#endif
>>> + }
>>> + return ret;
>>> +}
>>> +
>>> +void
>>> +platform_user_set (const struct platform_state_user *state)
>>> +{
>>> +#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> + if (state->username && state->pw)
>>> + {
>>> + if (setuid (state->pw->pw_uid))
>>> + msg (M_ERR, "setuid('%s') failed", state->username);
>>> + msg (M_INFO, "UID set to %s", state->username);
>>> + }
>>> +#endif
>>> +}
>>> +
>>> +/* Get/Set GID of process */
>>> +
>>> +bool
>>> +platform_group_get (const char *groupname, struct platform_state_group *state)
>>> +{
>>> + bool ret = false;
>>> + CLEAR (*state);
>>> + if (groupname)
>>> + {
>>> +#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> + state->gr = getgrnam (groupname);
>>> + if (!state->gr)
>>> + msg (M_ERR, "failed to find GID for group %s", groupname);
>>> + state->groupname = groupname;
>>> + ret = true;
>>> +#else
>>> + msg (M_FATAL, "cannot get GID for group %s -- platform lacks getgrnam() or setgid() system calls", groupname);
>>> +#endif
>>> + }
>>> + return ret;
>>> +}
>>> +
>>> +void
>>> +platform_group_set (const struct platform_state_group *state)
>>> +{
>>> +#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> + if (state->groupname && state->gr)
>>> + {
>>> + if (setgid (state->gr->gr_gid))
>>> + msg (M_ERR, "setgid('%s') failed", state->groupname);
>>> + msg (M_INFO, "GID set to %s", state->groupname);
>>> +#ifdef HAVE_SETGROUPS
>>> + {
>>> + gid_t gr_list[1];
>>> + gr_list[0] = state->gr->gr_gid;
>>> + if (setgroups (1, gr_list))
>>> + msg (M_ERR, "setgroups('%s') failed", state->groupname);
>>> + }
>>> +#endif
>>> + }
>>> +#endif
>>> +}
>>> +
>>> +/* Change process priority */
>>> +void
>>> +platform_nice (int niceval)
>>> +{
>>> + if (niceval)
>>> + {
>>> +#ifdef HAVE_NICE
>>> + errno = 0;
>>> + if (nice (niceval) < 0 && errno != 0)
>>> + msg (M_WARN | M_ERRNO, "WARNING: nice %d failed: %s", niceval, strerror(errno));
>>> + else
>>> + msg (M_INFO, "nice %d succeeded", niceval);
>>> +#else
>>> + msg (M_WARN, "WARNING: nice %d failed (function not implemented)", niceval);
>>> +#endif
>>> + }
>>> +}
>>> +
>>> +/* Get current PID */
>>> +unsigned int
>>> +platform_getpid ()
>>> +{
>>> +#ifdef WIN32
>>> + return (unsigned int) GetCurrentProcessId ();
>>> +#else
>>> +#ifdef HAVE_GETPID
>>> + return (unsigned int) getpid ();
>>> +#else
>>> + return 0;
>>> +#endif
>>> +#endif
>>> +}
>>> +
>>> +/* Disable paging */
>>> +void
>>> +platform_mlockall(bool print_msg)
>>> +{
>>> +#ifdef HAVE_MLOCKALL
>>> + if (mlockall (MCL_CURRENT | MCL_FUTURE))
>>> + msg (M_WARN | M_ERRNO, "WARNING: mlockall call failed");
>>> + else if (print_msg)
>>> + msg (M_INFO, "mlockall call succeeded");
>>> +#else
>>> + msg (M_WARN, "WARNING: mlockall call failed (function not implemented)");
>>> +#endif
>>> +}
>>> +
>>> +/*
>>> + * Wrapper for chdir library function
>>> + */
>>> +int
>>> +platform_chdir (const char* dir)
>>> +{
>>> +#ifdef HAVE_CHDIR
>>> +#ifdef WIN32
>>> + int res;
>>> + struct gc_arena gc = gc_new ();
>>> + res = _wchdir (wide_string (dir, &gc));
>>> + gc_free (&gc);
>>> + return res;
>>> +#else
>>> + return chdir (dir);
>>> +#endif
>>> +#else
>>> + return -1;
>>> +#endif
>>> +}
>>> +
>>> +/*
>>> + * convert system() return into a success/failure value
>>> + */
>>> +bool
>>> +platform_system_ok (int stat)
>>> +{
>>> +#ifdef WIN32
>>> + return stat == 0;
>>> +#else
>>> + return stat != -1 && WIFEXITED (stat) && WEXITSTATUS (stat) == 0;
>>> +#endif
>>> +}
>>> +
>>> +/*
>>> + * did system() call execute the given command?
>>> + */
>>> +bool
>>> +platform_system_executed (int stat)
>>> +{
>>> +#ifdef WIN32
>>> + return stat != -1;
>>> +#else
>>> + return stat != -1 && WEXITSTATUS (stat) != 127;
>>> +#endif
>>> +}
>>> +
>>> +int
>>> +platform_access (const char *path, int mode)
>>> +{
>>> +#ifdef WIN32
>>> + struct gc_arena gc = gc_new ();
>>> + int ret = _waccess (wide_string (path, &gc), mode & ~X_OK);
>>> + gc_free (&gc);
>>> + return ret;
>>> +#else
>>> + return access (path, mode);
>>> +#endif
>>> +}
>>> +
>>> +/*
>>> + * Go to sleep for n milliseconds.
>>> + */
>>> +void
>>> +platform_sleep_milliseconds (unsigned int n)
>>> +{
>>> +#ifdef WIN32
>>> + Sleep (n);
>>> +#else
>>> + struct timeval tv;
>>> + tv.tv_sec = n / 1000;
>>> + tv.tv_usec = (n % 1000) * 1000;
>>> + select (0, NULL, NULL, NULL, &tv);
>>> +#endif
>>> +}
>>> +
>>> +/*
>>> + * Go to sleep indefinitely.
>>> + */
>>> +void
>>> +platform_sleep_until_signal (void)
>>> +{
>>> +#ifdef WIN32
>>> + ASSERT (0);
>>> +#else
>>> + select (0, NULL, NULL, NULL, NULL);
>>> +#endif
>>> +}
>>> +
>>> +/* delete a file, return true if succeeded */
>>> +bool
>>> +platform_unlink (const char *filename)
>>> +{
>>> +#if defined(WIN32)
>>> + struct gc_arena gc = gc_new ();
>>> + BOOL ret = DeleteFileW (wide_string (filename, &gc));
>>> + gc_free (&gc);
>>> + return (ret != 0);
>>> +#elif defined(HAVE_UNLINK)
>>> + return (unlink (filename) == 0);
>>> +#else
>>> + return false;
>>> +#endif
>>> +}
>>> +
>>> +int platform_system(const char *command) {
>>> + int ret;
>>> +#ifdef WIN32
>>> + struct gc_arena gc = gc_new ();
>>> + ret = _wsystem (wide_string (command, &gc));
>>> + gc_free (&gc);
>>> +#else
>>> + ret = system (command);
>>> +#endif
>>> + return ret;
>>> +}
>>> +
>>> +int platform_putenv(char *string)
>>> +{
>>> + int status;
>>> +#if defined(WIN32)
>>> + struct gc_arena gc = gc_new ();
>>> + char *s = string_alloc(string, &gc);
>>> + char *value = strchr(s, '=');
>>> + if (value!=NULL)
>>> + {
>>> + *value = '\0';
>>> + value++;
>>> + if (*value == '\0')
>>> + value = NULL;
>>> + }
>>> +
>>> + status = SetEnvironmentVariableW (wide_string (s, &gc),
>>> + wide_string (value, &gc)) ? 1: 0;
>>> + gc_free (&gc);
>>> +#elif defined(HAVE_PUTENV)
>>> + void manage_env (char *str); /* TODO: Resolve properly */
>>> + status = putenv (string);
>>> + if (!status)
>>> + manage_env (string);
>>> +#endif
>>> +
>>> + return status;
>>> +}
>>> +
>>> +FILE *
>>> +platform_fopen (const char *path, const char *mode)
>>> +{
>>> +#ifdef WIN32
>>> + struct gc_arena gc = gc_new ();
>>> + FILE *f = _wfopen (wide_string (path, &gc), wide_string (mode, &gc));
>>> + gc_free (&gc);
>>> + return f;
>>> +#else
>>> + return fopen(path, mode);
>>> +#endif
>>> +}
>>> +
>>> +int
>>> +platform_open (const char *path, int flags, int mode)
>>> +{
>>> +#ifdef WIN32
>>> + struct gc_arena gc = gc_new ();
>>> + int fd = _wopen (wide_string (path, &gc), flags, mode);
>>> + gc_free (&gc);
>>> + return fd;
>>> +#else
>>> + return open(path, flags, mode);
>>> +#endif
>>> +}
>>> +
>>> +int
>>> +platform_stat (const char *path, platform_stat_t *buf)
>>> +{
>>> +#ifdef WIN32
>>> + struct gc_arena gc = gc_new ();
>>> + int res = _wstat (wide_string (path, &gc), buf);
>>> + gc_free (&gc);
>>> + return res;
>>> +#else
>>> + return stat(path, buf);
>>> +#endif
>>> +}
>>> +
>>> diff --git a/src/openvpn/platform.h b/src/openvpn/platform.h
>>> new file mode 100644
>>> index 0000000..7bd2067
>>> --- /dev/null
>>> +++ b/src/openvpn/platform.h
>>> @@ -0,0 +1,142 @@
>>> +/*
>>> + * OpenVPN -- An application to securely tunnel IP networks
>>> + * over a single TCP/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. <sa...@op...>
>>> + *
>>> + * 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 PLATFORM_H
>>> +#define PLATFORM_H
>>> +
>>> +#ifdef HAVE_SYS_TYPES_H
>>> +#include <sys/types.h>
>>> +#endif
>>> +
>>> +#ifdef HAVE_SYS_STAT_H
>>> +#include <sys/stat.h>
>>> +#endif
>>> +
>>> +#ifdef HAVE_UNISTD_H
>>> +#include <unistd.h>
>>> +#endif
>>> +
>>> +#ifdef HAVE_PWD_H
>>> +#include <pwd.h>
>>> +#endif
>>> +
>>> +#ifdef HAVE_GRP_H
>>> +#include <grp.h>
>>> +#endif
>>> +
>>> +#ifdef HAVE_STDIO_H
>>> +#include <stdio.h>
>>> +#endif
>>> +
>>> +#include "basic.h"
>>> +
>>> +/* Get/Set UID of process */
>>> +
>>> +struct platform_state_user {
>>> +#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> + const char *username;
>>> + struct passwd *pw;
>>> +#else
>>> + int dummy;
>>> +#endif
>>> +};
>>> +
>>> +/* Get/Set GID of process */
>>> +
>>> +struct platform_state_group {
>>> +#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> + const char *groupname;
>>> + struct group *gr;
>>> +#else
>>> + int dummy;
>>> +#endif
>>> +};
>>> +
>>> +bool platform_user_get (const char *username, struct platform_state_user *state);
>>> +void platform_user_set (const struct platform_state_user *state);
>>> +
>>> +bool platform_group_get (const char *groupname, struct platform_state_group *state);
>>> +void platform_group_set (const struct platform_state_group *state);
>>> +
>>> +/*
>>> + * Extract UID or GID
>>> + */
>>> +
>>> +static inline int
>>> +platform_state_user_uid (const struct platform_state_user *s)
>>> +{
>>> +#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
>>> + if (s->pw)
>>> + return s->pw->pw_uid;
>>> +#endif
>>> + return -1;
>>> +}
>>> +
>>> +static inline int
>>> +platform_state_group_gid (const struct platform_state_group *s)
>>> +{
>>> +#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
>>> + if (s->gr)
>>> + return s->gr->gr_gid;
>>> +#endif
>>> + return -1;
>>> +}
>>> +
>>> +void platform_chroot (const char *path);
>>> +
>>> +void platform_nice (int niceval);
>>> +
>>> +unsigned int platform_getpid (void);
>>> +
>>> +void platform_mlockall (bool print_msg); /* Disable paging */
>>> +
>>> +int platform_chdir (const char* dir);
>>> +
>>> +/* interpret the status code returned by system()/execve() */
>>> +bool platform_system_ok (int stat);
>>> +bool platform_system_executed (int stat);
>>> +int platform_system(const char *command);
>>> +
>>> +int platform_access (const char *path, int mode);
>>> +
>>> +void platform_sleep_milliseconds (unsigned int n);
>>> +
>>> +void platform_sleep_until_signal (void);
>>> +
>>> +/* delete a file, return true if succeeded */
>>> +bool platform_unlink (const char *filename);
>>> +
>>> +int platform_putenv (char *string);
>>> +
>>> +FILE *platform_fopen (const char *path, const char *mode);
>>> +int platform_open (const char *path, int flags, int mode);
>>> +
>>> +#ifdef WIN32
>>> +typedef struct _stat platform_stat_t;
>>> +#else
>>> +typedef struct stat platform_stat_t;
>>> +#endif
>>> +int platform_stat (const char *path, platform_stat_t *buf);
>>> +
>>> +#endif
>>> diff --git a/src/openvpn/ps.c b/src/openvpn/ps.c
>>> index a4e50e8..5d056ee 100644
>>> --- a/src/openvpn/ps.c
>>> +++ b/src/openvpn/ps.c
>>> @@ -337,7 +337,7 @@ journal_add (const char *journal_dir, struct proxy_connection *pc, struct proxy_
>>> check_malloc_return (jfn);
>>> openvpn_snprintf (jfn, fnlen, "%s/%s", journal_dir, t);
>>> dmsg (D_PS_PROXY_DEBUG, "PORT SHARE PROXY: client origin %s -> %s", jfn, f);
>>> - fd = openvpn_open (jfn, O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP);
>>> + fd = platform_open (jfn, O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP);
>>> if (fd != -1)
>>> {
>>> write(fd, f, strlen(f));
>>> diff --git a/src/openvpn/ssl_openssl.c b/src/openvpn/ssl_openssl.c
>>> index 6a60cb5..d712c66 100644
>>> --- a/src/openvpn/ssl_openssl.c
>>> +++ b/src/openvpn/ssl_openssl.c
>>> @@ -280,7 +280,7 @@ tls_ctx_load_pkcs12(struct tls_root_ctx *ctx, const char *pkcs12_file,
>>> #endif
>>> {
>>> /* Load the PKCS #12 file */
>>> - if (!(fp = openvpn_fopen(pkcs12_file, "rb")))
>>> + if (!(fp = platform_fopen(pkcs12_file, "rb")))
>>> msg(M_SSLERR, "Error opening file %s", pkcs12_file);
>>> p12 = d2i_PKCS12_fp(fp, NULL);
>>> fclose(fp);
>>> diff --git a/src/openvpn/ssl_verify.c b/src/openvpn/ssl_verify.c
>>> index 51457f8..e837e39 100644
>>> --- a/src/openvpn/ssl_verify.c
>>> +++ b/src/openvpn/ssl_verify.c
>>> @@ -517,7 +517,7 @@ verify_cert_call_command(const char *verify_command, struct env_set *es,
>>> if (verify_export_cert)
>>> {
>>> if (tmp_file)
>>> - delete_file(tmp_file);
>>> + platform_unlink(tmp_file);
>>> }
>>>
>>> gc_free(&gc);
>>> @@ -551,7 +551,7 @@ verify_check_crl_dir(const char *crl_dir, openvpn_x509_cert_t *cert)
>>> x509_free_serial(serial);
>>> return FAILURE;
>>> }
>>> - fd = openvpn_open (fn, O_RDONLY, 0);
>>> + fd = platform_open (fn, O_RDONLY, 0);
>>> if (fd >= 0)
>>> {
>>> msg (D_HANDSHAKE, "VERIFY CRL: certificate serial number %s is revoked", serial);
>>> @@ -735,7 +735,7 @@ key_state_rm_auth_control_file (struct key_state *ks)
>>> {
>>> if (ks && ks->auth_control_file)
>>> {
>>> - delete_file (ks->auth_control_file);
>>> + platform_unlink (ks->auth_control_file);
>>> free (ks->auth_control_file);
>>> ks->auth_control_file = NULL;
>>> }
>>> @@ -987,7 +987,7 @@ verify_user_pass_script (struct tls_session *session, const struct user_pass *up
>>>
>>> done:
>>> if (tmp_file && strlen (tmp_file) > 0)
>>> - delete_file (tmp_file);
>>> + platform_unlink (tmp_file);
>>>
>>> argv_reset (&argv);
>>> gc_free (&gc);
>>> diff --git a/src/openvpn/status.c b/src/openvpn/status.c
>>> index 0be5e4c..5f9ab9e 100644
>>> --- a/src/openvpn/status.c
>>> +++ b/src/openvpn/status.c
>>> @@ -78,17 +78,17 @@ status_open (const char *filename,
>>> switch (so->flags)
>>> {
>>> case STATUS_OUTPUT_WRITE:
>>> - so->fd = openvpn_open (filename,
>>> + so->fd = platform_open (filename,
>>> O_CREAT | O_TRUNC | O_WRONLY,
>>> S_IRUSR | S_IWUSR);
>>> break;
>>> case STATUS_OUTPUT_READ:
>>> - so->fd = openvpn_open (filename,
>>> + so->fd = platform_open (filename,
>>> O_RDONLY,
>>> S_IRUSR | S_IWUSR);
>>> break;
>>> case STATUS_OUTPUT_READ|STATUS_OUTPUT_WRITE:
>>> - so->fd = openvpn_open (filename,
>>> + so->fd = platform_open (filename,
>>> O_CREAT | O_RDWR,
>>> S_IRUSR | S_IWUSR);
>>> break;
>>> diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
>>> index abc6a99..e6a7bc8 100644
>>> --- a/src/openvpn/tun.c
>>> +++ b/src/openvpn/tun.c
>>> @@ -1545,22 +1545,22 @@ tuncfg (const char *dev, const char *dev_type, const char *dev_node, int persist
>>> msg (M_ERR, "Cannot ioctl TUNSETPERSIST(%d) %s", persist_mode, dev);
>>> if (username != NULL)
>>> {
>>> - struct user_state user_state;
>>> + struct platform_state_user platform_state_user;
>>>
>>> - if (!get_user (username, &user_state))
>>> + if (!platform_user_get (username, &platform_state_user))
>>> msg (M_ERR, "Cannot get user entry for %s", username);
>>> else
>>> - if (ioctl (tt->fd, TUNSETOWNER, user_state.pw->pw_uid) < 0)
>>> + if (ioctl (tt->fd, TUNSETOWNER, platform_state_user.pw->pw_uid) < 0)
>>> msg (M_ERR, "Cannot ioctl TUNSETOWNER(%s) %s", username, dev);
>>> }
>>> if (groupname != NULL)
>>> {
>>> - struct group_state group_state;
>>> + struct platform_state_group platform_state_group;
>>>
>>> - if (!get_group (groupname, &group_state))
>>> + if (!platform_group_get (groupname, &platform_state_group))
>>> msg (M_ERR, "Cannot get group entry for %s", groupname);
>>> else
>>> - if (ioctl (tt->fd, TUNSETGROUP, group_state.gr->gr_gid) < 0)
>>> + if (ioctl (tt->fd, TUNSETGROUP, platform_state_group.gr->gr_gid) < 0)
>>> msg (M_ERR, "Cannot ioctl TUNSETOWNER(%s) %s", groupname, dev);
>>> }
>>> close_tun (tt);
>>> diff --git a/src/openvpn/win32.c b/src/openvpn/win32.c
>>> index e94343b..e8e69dc 100644
>>> --- a/src/openvpn/win32.c
>>> +++ b/src/openvpn/win32.c
>>> @@ -976,33 +976,6 @@ wide_string (const char* utf8, struct gc_arena *gc)
>>> return ucs16;
>>> }
>>>
>>> -FILE *
>>> -openvpn_fopen (const char *path, const char *mode)
>>> -{
>>> - struct gc_arena gc = gc_new ();
>>> - FILE *f = _wfopen (wide_string (path, &gc), wide_string (mode, &gc));
>>> - gc_free (&gc);
>>> - return f;
>>> -}
>>> -
>>> -int
>>> -openvpn_open (const char *path, int flags, int mode)
>>> -{
>>> - struct gc_arena gc = gc_new ();
>>> - int fd = _wopen (wide_string (path, &gc), flags, mode);
>>> - gc_free (&gc);
>>> - return fd;
>>> -}
>>> -
>>> -int
>>> -openvpn_stat (const char *path, openvpn_stat_t *buf)
>>> -{
>>> - struct gc_arena gc = gc_new ();
>>> - int res = _wstat (wide_string (path, &gc), buf);
>>> - gc_free (&gc);
>>> - return res;
>>> -}
>>> -
>>> /*
>>> * call ourself in another process
>>> */
>>> --
>>> 1.7.3.4
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Virtualization & Cloud Management Using Capacity Planning
>>> Cloud computing makes use of virtualization - but cloud computing
>>> also focuses on allowing computing to be delivered as a service.
>>> http://www.accelacomm.com/jaw/sfnl/114/51521223/
>>> _______________________________________________
>>> Openvpn-devel mailing list
>>> Ope...@li...
>>> https://lists.sourceforge.net/lists/listinfo/openvpn-devel
>>
|