run_command.c File Reference

#include "syshead.h"
#include "buffer.h"
#include "error.h"
#include "platform.h"
#include "win32.h"
#include "memdbg.h"
#include "run_command.h"

Include dependency graph for run_command.c:

Go to the source code of this file.

Functions
int	script_security (void)
void	script_security_set (int level)
static const char *	system_error_message (int stat, struct gc_arena *gc)
bool	openvpn_waitpid_check (pid_t pid, const char *msg_prefix, int msglevel)
	Checks if a running process is still running.
bool	openvpn_execve_allowed (const unsigned int flags)
int	openvpn_execve_check (const struct argv *a, const struct env_set *es, const unsigned int flags, const char *error_message)
int	openvpn_popen (const struct argv *a, const struct env_set *es)

Variables
static int	script_security_level = SSEC_BUILT_IN

Function Documentation

openvpn_execve_allowed()

bool openvpn_execve_allowed

(

const unsigned int

flags

)

Definition at line 151 of file run_command.c.

References S_SCRIPT, script_security(), SSEC_BUILT_IN, and SSEC_SCRIPTS.

Referenced by openvpn_execve().

openvpn_execve_check()

int openvpn_execve_check	(	const struct argv *	a,
		const struct env_set *	es,
		const unsigned int	flags,
		const char *	error_message
	)

Definition at line 238 of file run_command.c.

References es, gc, gc_free(), gc_new(), M_FATAL, M_WARN, msg, openvpn_execve(), platform_ret_code(), platform_system_ok(), S_EXITCODE, S_FATAL, S_NOWAITPID, and system_error_message().

Referenced by add_route(), add_route_ipv6(), cleanup(), delete_route(), delete_route_ipv6(), do_ifconfig_ipv4(), do_ifconfig_ipv6(), exec_command(), init(), ipconfig_register_dns(), openvpn_run_script(), set_lladdr(), tun_afunix_exec_child(), undo_ifconfig_ipv4(), and undo_ifconfig_ipv6().

openvpn_popen()

int openvpn_popen	(	const struct argv *	a,
		const struct env_set *	es
	)

Definition at line 280 of file run_command.c.

References argv::argv, es, gc, gc_free(), gc_new(), M_ERR, M_FATAL, M_WARN, make_env_array(), msg, OPENVPN_EXECVE_FAILURE, script_security(), SCRIPT_SECURITY_WARNING, SSEC_BUILT_IN, SSEC_SCRIPTS, and status.

openvpn_waitpid_check()

bool openvpn_waitpid_check	(	pid_t	pid,
		const char *	msg_prefix,
		int	msglevel
	)

Checks if a running process is still running.

This is mainly useful for processes started with S_NOWAITPID

This function is currently not implemented for Windows as the helper macros used by this function are not available.

Parameters

pid	pid of the process to be checked
msg_prefix	prefixed of the message that be printed
msglevel	msglevel of the messages to be printed

Returns

true if the process is still running, false if an error condition occurred

Definition at line 111 of file run_command.c.

References buffer::len, msg, OPENVPN_EXECVE_FAILURE, and status.

Referenced by read_tun_afunix(), tun_afunix_exec_child(), and write_tun_afunix().

script_security()

int script_security

(

void

)

Definition at line 43 of file run_command.c.

References script_security_level.

Referenced by do_option_warnings(), env_allowed(), openvpn_execve(), openvpn_execve_allowed(), and openvpn_popen().

script_security_set()

void script_security_set

(

int

level

)

Definition at line 49 of file run_command.c.

References script_security_level.

Referenced by add_option().

system_error_message()

static const char * system_error_message ( int  stat, struct gc_arena *  gc  )

static

Definition at line 58 of file run_command.c.

References alloc_buf_gc(), buf_printf(), buffer::data, gc, buffer::len, OPENVPN_EXECVE_ERROR, OPENVPN_EXECVE_FAILURE, and OPENVPN_EXECVE_NOT_ALLOWED.

Referenced by openvpn_execve_check().

Variable Documentation

script_security_level

int script_security_level = SSEC_BUILT_IN

static

Definition at line 40 of file run_command.c.

Referenced by script_security(), and script_security_set().