#include "syshead.h"
#include "common.h"
#include "misc.h"
#include "win32.h"
#include "socket.h"
#include "fdmisc.h"
#include "proxy.h"
#include "forward.h"
#include "memdbg.h"

Include dependency graph for socks.c:

Macros
#define	UP_TYPE_SOCKS "SOCKS Proxy"

Functions
struct socks_proxy_info *	socks_proxy_new (const char server, const char port, const char *authfile)

void	socks_proxy_close (struct socks_proxy_info *sp)

static bool	socks_username_password_auth (struct socks_proxy_info p, socket_descriptor_t sd, struct event_timeout server_poll_timeout, volatile int *signal_received)

static bool	socks_handshake (struct socks_proxy_info p, socket_descriptor_t sd, struct event_timeout server_poll_timeout, volatile int *signal_received)

static bool	recv_socks_reply (socket_descriptor_t sd, struct openvpn_sockaddr addr, struct event_timeout server_poll_timeout, volatile int *signal_received)

static int	port_from_servname (const char *servname)

void	establish_socks_proxy_passthru (struct socks_proxy_info p, socket_descriptor_t sd, const char host, const char servname, struct event_timeout server_poll_timeout, struct signal_info *sig_info)

void	establish_socks_proxy_udpassoc (struct socks_proxy_info p, socket_descriptor_t ctrl_sd, socket_descriptor_t udp_sd, struct openvpn_sockaddr relay_addr, struct event_timeout server_poll_timeout, struct signal_info sig_info)

void	socks_process_incoming_udp (struct buffer buf, struct link_socket_actual from)

int	socks_process_outgoing_udp (struct buffer buf, const struct link_socket_actual to)

Macro Definition Documentation

◆ UP_TYPE_SOCKS

#define UP_TYPE_SOCKS "SOCKS Proxy"

Definition at line 49 of file socks.c.

Function Documentation

◆ establish_socks_proxy_passthru()

void establish_socks_proxy_passthru	(	struct socks_proxy_info *	p,
		socket_descriptor_t	sd,
		const char *	host,
		const char *	servname,
		struct event_timeout *	server_poll_timeout,
		struct signal_info *	sig_info
	)

Definition at line 455 of file socks.c.

References D_LINK_ERRORS, M_ERRNO, msg, MSG_NOSIGNAL, port_from_servname(), recv_socks_reply(), register_signal(), signal_info::signal_received, and socks_handshake().

Referenced by phase2_tcp_client().

◆ establish_socks_proxy_udpassoc()

void establish_socks_proxy_udpassoc	(	struct socks_proxy_info *	p,
		socket_descriptor_t	ctrl_sd,
		socket_descriptor_t	udp_sd,
		struct openvpn_sockaddr *	relay_addr,
		struct event_timeout *	server_poll_timeout,
		struct signal_info *	sig_info
	)

Definition at line 517 of file socks.c.

References CLEAR, D_LINK_ERRORS, M_ERRNO, msg, MSG_NOSIGNAL, recv_socks_reply(), register_signal(), signal_info::signal_received, and socks_handshake().

Referenced by phase2_socks_client().

◆ port_from_servname()

static int port_from_servname ( const char * servname )

static

Definition at line 435 of file socks.c.

References service.

Referenced by establish_socks_proxy_passthru().

◆ recv_socks_reply()

static bool recv_socks_reply	(	socket_descriptor_t	sd,
		struct openvpn_sockaddr *	addr,
		struct event_timeout *	server_poll_timeout,
		volatile int *	signal_received
	)

static

Definition at line 307 of file socks.c.

References openvpn_sockaddr::addr, D_LINK_ERRORS, gc_free(), gc_new(), get_server_poll_remaining_time(), get_signal(), openvpn_sockaddr::in4, M_ERRNO, M_INFO, msg, MSG_NOSIGNAL, openvpn_fd_set(), print_openvpn_sockaddr(), and status.

Referenced by establish_socks_proxy_passthru(), and establish_socks_proxy_udpassoc().

◆ socks_handshake()

static bool socks_handshake	(	struct socks_proxy_info *	p,
		socket_descriptor_t	sd,
		struct event_timeout *	server_poll_timeout,
		volatile int *	signal_received
	)

static

Definition at line 191 of file socks.c.

References socks_proxy_info::authfile, D_LINK_ERRORS, get_server_poll_remaining_time(), get_signal(), M_ERRNO, msg, MSG_NOSIGNAL, openvpn_fd_set(), socks_username_password_auth(), and status.

Referenced by establish_socks_proxy_passthru(), and establish_socks_proxy_udpassoc().

◆ socks_process_incoming_udp()

void socks_process_incoming_udp	(	struct buffer *	buf,
		struct link_socket_actual *	from
	)

Definition at line 565 of file socks.c.

References openvpn_sockaddr::addr, BLEN, buf_read(), buf_read_u16(), buf_read_u8(), link_socket_actual::dest, openvpn_sockaddr::in4, and buffer::len.

Referenced by socks_postprocess_incoming_link().

◆ socks_process_outgoing_udp()

int socks_process_outgoing_udp	(	struct buffer *	buf,
		const struct link_socket_actual *	to
	)

Definition at line 604 of file socks.c.

References openvpn_sockaddr::addr, ASSERT, buf_defined(), buf_sub(), buf_write(), buf_write_u16(), buf_write_u8(), link_socket_actual::dest, and openvpn_sockaddr::in4.

Referenced by socks_preprocess_outgoing_link().

◆ socks_proxy_close()

void socks_proxy_close ( struct socks_proxy_info * sp )

Definition at line 81 of file socks.c.

Referenced by uninit_proxy_dowork().

◆ socks_proxy_new()

struct socks_proxy_info* socks_proxy_new	(	const char *	server,
		const char *	port,
		const char *	authfile
	)

Definition at line 52 of file socks.c.

References ALLOC_OBJ_CLEAR, ASSERT, socks_proxy_info::authfile, socks_proxy_info::defined, socks_proxy_info::port, socks_proxy_info::server, and strncpynt().

Referenced by init_proxy_dowork().

◆ socks_username_password_auth()

static bool socks_username_password_auth	(	struct socks_proxy_info *	p,
		socket_descriptor_t	sd,
		struct event_timeout *	server_poll_timeout,
		volatile int *	signal_received
	)