tcpip.c File Reference

Implements TCP/IP + SSL COMSTACK. More...

#include <yaz/yconfig.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <yaz/thread_create.h>
#include <yaz/log.h>
#include <yaz/base64.h>
#include <yaz/comstack.h>
#include <yaz/tcpip.h>

Go to the source code of this file.

Data Structures
struct	tcpip_state

Macros
#define	RESOLVER_THREAD   1
#define	YAZ_SOCKLEN_T   int
#define	CS_TCPIP_BUFCHUNK   4096

Typedefs
typedef struct tcpip_state	tcpip_state

Functions
static void	tcpip_close (COMSTACK h)
static int	tcpip_put (COMSTACK h, char *buf, int size)
static int	tcpip_get (COMSTACK h, char **buf, int *bufsize)
static int	tcpip_connect (COMSTACK h, void *address)
static int	tcpip_more (COMSTACK h)
static int	tcpip_rcvconnect (COMSTACK h)
static int	tcpip_bind (COMSTACK h, void *address, int mode)
static int	tcpip_listen (COMSTACK h, char *raddr, int *addrlen, int(*check_ip)(void *cd, const char *a, int len, int type), void *cd)
static int	tcpip_set_blocking (COMSTACK p, int blocking)
struct addrinfo *	tcpip_getaddrinfo (const char *str, const char *port, int *ipv6_only)
static COMSTACK	tcpip_accept (COMSTACK h)
static const char *	tcpip_addrstr (COMSTACK h)
static void *	tcpip_straddr (COMSTACK h, const char *str)
static int	tcpip_init (void)
static struct tcpip_state *	tcpip_state_create (void)
COMSTACK	tcpip_type (int s, int flags, int protocol, void *vp)
static void	connect_and_bind (COMSTACK p, const char *connect_host, const char *connect_auth, const char *bind_host)
COMSTACK	yaz_tcpip_create3 (int s, int flags, int protocol, const char *connect_host, const char *connect_auth, const char *bind_host)
COMSTACK	yaz_tcpip_create2 (int s, int flags, int protocol, const char *connect_host, const char *bind_host)
COMSTACK	yaz_tcpip_create (int s, int flags, int protocol, const char *connect_host)
COMSTACK	ssl_type (int s, int flags, int protocol, void *vp)
COMSTACK	yaz_ssl_create (int s, int flags, int protocol, const char *connect_host, const char *connect_auth, const char *bind_host)
static void	parse_host_port (const char *host_port, char *tmp, size_t tmp_sz, const char **host, const char **port)
static struct addrinfo *	create_net_socket (COMSTACK h)
static int	cont_connect (COMSTACK h)
int	tcpip_listen (COMSTACK h, char *raddr, int *addrlen, int(*check_ip)(void *cd, const char *a, int len, int t), void *cd)
void	cs_print_session_info (COMSTACK cs)
void *	cs_get_ssl (COMSTACK cs)
int	cs_set_ssl_ctx (COMSTACK cs, void *ctx)
int	cs_set_ssl_certificate_file (COMSTACK cs, const char *fname)
int	cs_get_peer_certificate_x509 (COMSTACK cs, char **buf, int *len)
int	cs_set_head_only (COMSTACK cs, int head_only)

Variables
static int	log_level = 0

Detailed Description

Implements TCP/IP + SSL COMSTACK.

Definition in file tcpip.c.

Macro Definition Documentation

CS_TCPIP_BUFCHUNK

#define CS_TCPIP_BUFCHUNK   4096

Definition at line 1058 of file tcpip.c.

RESOLVER_THREAD

#define RESOLVER_THREAD   1

Definition at line 69 of file tcpip.c.

YAZ_SOCKLEN_T

#define YAZ_SOCKLEN_T   int

Definition at line 101 of file tcpip.c.

Typedef Documentation

tcpip_state

typedef struct tcpip_state tcpip_state

Function Documentation

connect_and_bind()

static void connect_and_bind ( COMSTACK  p, const char *  connect_host, const char *  connect_auth, const char *  bind_host  )

static

Definition at line 248 of file tcpip.c.

References tcpip_state::bind_host, tcpip_state::connect_request_buf, tcpip_state::connect_request_len, comstack::cprivate, xmalloc, and yaz_base64encode().

Referenced by yaz_ssl_create(), and yaz_tcpip_create3().

cont_connect()

static int cont_connect ( COMSTACK  h )

static

Definition at line 624 of file tcpip.c.

References tcpip_state::ai_connect, comstack::cerrno, comstack::cprivate, CS_ST_UNBND, CSYSERR, comstack::flags, comstack::iofile, log_level, ssl_type(), comstack::state, tcpip_connect(), tcpip_set_blocking(), comstack::type, and yaz_log().

Referenced by tcpip_connect(), tcpip_put(), and tcpip_rcvconnect().

create_net_socket()

static struct addrinfo * create_net_socket ( COMSTACK  h )

static

Definition at line 467 of file tcpip.c.

References tcpip_state::ai, tcpip_state::bind_host, comstack::cerrno, comstack::cprivate, CSYSERR, comstack::flags, comstack::iofile, tcpip_state::ipv6_only, log_level, tcpip_getaddrinfo(), tcpip_set_blocking(), and yaz_log().

Referenced by tcpip_straddr().

cs_get_peer_certificate_x509()

int cs_get_peer_certificate_x509	(	COMSTACK	cs,
		char **	buf,
		int *	len
	)

Definition at line 1566 of file tcpip.c.

References tcpip_state::buf, comstack::cprivate, ssl_type(), comstack::type, and xstrdup.

Referenced by get_cert().

cs_get_ssl()

void * cs_get_ssl

(

COMSTACK

cs

)

Definition at line 1534 of file tcpip.c.

cs_print_session_info()

void cs_print_session_info

(

COMSTACK

cs

)

Definition at line 1492 of file tcpip.c.

References comstack::cprivate, ssl_type(), and comstack::type.

cs_set_head_only()

int cs_set_head_only	(	COMSTACK	cs,
		int	head_only
	)

Definition at line 1605 of file tcpip.c.

References comstack::cerrno, tcpip_state::complete, comstack::cprivate, cs_complete_auto(), cs_complete_auto_head(), CS_ST_INCON, ssl_type(), tcpip_type(), and comstack::type.

Referenced by yaz_url_exec().

cs_set_ssl_certificate_file()

int cs_set_ssl_certificate_file	(	COMSTACK	cs,
		const char *	fname
	)

Definition at line 1552 of file tcpip.c.

References comstack::cprivate, ssl_type(), and comstack::type.

Referenced by add_listener().

cs_set_ssl_ctx()

int cs_set_ssl_ctx	(	COMSTACK	cs,
		void *	ctx
	)

Definition at line 1540 of file tcpip.c.

References ssl_type(), and comstack::type.

parse_host_port()

static void parse_host_port ( const char *  host_port, char *  tmp, size_t  tmp_sz, const char **  host, const char **  port  )

static

Definition at line 376 of file tcpip.c.

Referenced by tcpip_getaddrinfo(), and tcpip_rcvconnect().

ssl_type()

COMSTACK ssl_type	(	int	s,
		int	flags,
		int	protocol,
		void *	vp
	)

Definition at line 324 of file tcpip.c.

References comstack::cprivate, ssl_type(), tcpip_type(), and comstack::type.

Referenced by cont_connect(), cs_create_host2(), cs_get_peer_certificate_x509(), cs_parse_host(), cs_print_session_info(), cs_set_head_only(), cs_set_ssl_certificate_file(), cs_set_ssl_ctx(), ssl_type(), tcpip_bind(), tcpip_rcvconnect(), tcpip_straddr(), and yaz_ssl_create().

tcpip_accept()

COMSTACK tcpip_accept ( COMSTACK  h )

static

Definition at line 950 of file tcpip.c.

References comstack::cerrno, comstack::cprivate, cs_close, CS_DATA, CS_ST_ACCEPT, CS_ST_DATAXFER, CS_ST_IDLE, CS_ST_INCON, CSOUTSTATE, CSYSERR, comstack::event, comstack::flags, comstack::io_pending, comstack::iofile, log_level, comstack::newfd, comstack::state, tcpip_set_blocking(), tcpip_state_create(), xfree, xmalloc, and yaz_log().

Referenced by tcpip_type().

tcpip_addrstr()

const char * tcpip_addrstr ( COMSTACK  h )

static

Definition at line 1359 of file tcpip.c.

References tcpip_state::buf, comstack::cerrno, comstack::cprivate, CS_FLAGS_NUMERICHOST, CSYSERR, comstack::flags, comstack::iofile, PROTO_HTTP, comstack::protocol, and YAZ_SOCKLEN_T.

Referenced by tcpip_type().

tcpip_bind()

static int tcpip_bind ( COMSTACK  h, void *  address, int  mode  )

static

Definition at line 813 of file tcpip.c.

References tcpip_state::ai, comstack::cerrno, comstack::cprivate, CS_LISTEN, CS_SERVER, CS_ST_IDLE, CSERRORSSL, CSYSERR, comstack::event, comstack::iofile, log_level, ssl_type(), comstack::state, comstack::type, and yaz_log().

Referenced by tcpip_type().

tcpip_close()

void tcpip_close ( COMSTACK  h )

static

Definition at line 1299 of file tcpip.c.

References tcpip_state::ai, tcpip_state::altbuf, tcpip_state::bind_host, tcpip_state::connect_request_buf, tcpip_state::connect_response_buf, comstack::cprivate, tcpip_state::host_port, comstack::iofile, log_level, xfree, yaz_log(), and yaz_thread_join().

Referenced by tcpip_type().

tcpip_connect()

int tcpip_connect ( COMSTACK  h, void *  address  )

static

Definition at line 664 of file tcpip.c.

References tcpip_state::ai_connect, comstack::cerrno, cont_connect(), comstack::cprivate, CS_CONNECT, CS_FLAGS_BLOCKING, CS_ST_CONNECTING, CS_ST_UNBND, CS_WANT_READ, CS_WANT_WRITE, CSOUTSTATE, comstack::event, comstack::flags, comstack::io_pending, comstack::iofile, log_level, comstack::state, tcpip_rcvconnect(), yaz_errno(), and yaz_log().

Referenced by cont_connect(), tcpip_rcvconnect(), and tcpip_type().

tcpip_get()

int tcpip_get ( COMSTACK  h, char **  buf, int *  bufsize  )

static

Definition at line 1064 of file tcpip.c.

References tcpip_state::altbuf, tcpip_state::altlen, tcpip_state::altsize, comstack::cerrno, tcpip_state::complete, comstack::cprivate, CS_TCPIP_BUFCHUNK, CS_WANT_READ, CSBUFSIZE, CSYSERR, comstack::io_pending, comstack::iofile, log_level, comstack::max_recv_bytes, xmalloc, xrealloc, yaz_errno(), yaz_log(), and yaz_set_errno().

Referenced by tcpip_rcvconnect(), and tcpip_type().

tcpip_getaddrinfo()

struct addrinfo * tcpip_getaddrinfo	(	const char *	str,
		const char *	port,
		int *	ipv6_only
	)

Definition at line 415 of file tcpip.c.

References parse_host_port().

Referenced by create_net_socket(), and tcpip_straddr().

tcpip_init()

static int tcpip_init ( void  )

static

Definition at line 146 of file tcpip.c.

References log_level, log_level_set, yaz_init_globals(), and yaz_log_module_level().

Referenced by tcpip_straddr(), and tcpip_type().

tcpip_listen() [1/2]

int tcpip_listen	(	COMSTACK	h,
		char *	raddr,
		int *	addrlen,
		int(*)(void *cd, const char *a, int len, int t)	check_ip,
		void *	cd
	)

Definition at line 880 of file tcpip.c.

References comstack::cerrno, CS_ST_IDLE, CS_ST_INCON, CSDENY, CSNODATA, CSOUTSTATE, CSYSERR, comstack::iofile, log_level, comstack::newfd, comstack::state, yaz_errno(), yaz_log(), and YAZ_SOCKLEN_T.

tcpip_listen() [2/2]

static int tcpip_listen ( COMSTACK  h, char *  raddr, int *  addrlen, int(*)(void *cd, const char *a, int len, int type)  check_ip, void *  cd  )

static

Referenced by tcpip_type().

tcpip_more()

int tcpip_more ( COMSTACK  h )

static

Definition at line 617 of file tcpip.c.

References tcpip_state::altbuf, tcpip_state::altlen, tcpip_state::complete, and comstack::cprivate.

Referenced by tcpip_type().

tcpip_put()

int tcpip_put ( COMSTACK  h, char *  buf, int  size  )

static

Definition at line 1215 of file tcpip.c.

References tcpip_state::buf, comstack::cerrno, cont_connect(), comstack::cprivate, CS_DATA, CS_FLAGS_BLOCKING, CS_WANT_WRITE, CSWRONGBUF, CSYSERR, comstack::event, comstack::flags, comstack::io_pending, comstack::iofile, log_level, tcpip_state::towrite, tcpip_state::written, yaz_errno(), and yaz_log().

Referenced by tcpip_rcvconnect(), and tcpip_type().

tcpip_rcvconnect()

int tcpip_rcvconnect ( COMSTACK  h )

static

Definition at line 728 of file tcpip.c.

References comstack::cerrno, tcpip_state::complete, tcpip_state::connect_request_buf, tcpip_state::connect_request_len, tcpip_state::connect_response_buf, tcpip_state::connect_response_len, cont_connect(), comstack::cprivate, cs_complete_auto(), cs_complete_auto_head(), CS_CONNECT, CS_DATA, CS_ST_CONNECTING, CS_ST_DATAXFER, CS_ST_UNBND, CSOUTSTATE, comstack::event, tcpip_state::host_port, comstack::iofile, log_level, parse_host_port(), ssl_type(), comstack::state, tcpip_connect(), tcpip_get(), tcpip_put(), comstack::type, xfree, and yaz_log().

Referenced by tcpip_connect(), and tcpip_type().

tcpip_set_blocking()

static int tcpip_set_blocking ( COMSTACK  p, int  blocking  )

static

Definition at line 1398 of file tcpip.c.

References CS_FLAGS_BLOCKING, comstack::flags, and comstack::iofile.

Referenced by cont_connect(), create_net_socket(), tcpip_accept(), and tcpip_type().

tcpip_state_create()

static struct tcpip_state * tcpip_state_create ( void  )

static

Definition at line 173 of file tcpip.c.

References tcpip_state::ai, tcpip_state::ai_connect, tcpip_state::altbuf, tcpip_state::altlen, tcpip_state::altsize, tcpip_state::bind_host, tcpip_state::complete, tcpip_state::connect_request_buf, tcpip_state::connect_request_len, tcpip_state::connect_response_buf, tcpip_state::connect_response_len, cs_complete_auto(), tcpip_state::host_port, tcpip_state::towrite, tcpip_state::written, and xmalloc.

Referenced by tcpip_accept(), and tcpip_type().

tcpip_straddr()

void * tcpip_straddr ( COMSTACK  h, const char *  str  )

static

Definition at line 577 of file tcpip.c.

References tcpip_state::ai, comstack::cprivate, create_net_socket(), CS_FLAGS_DNS_NO_BLOCK, CS_ST_UNBND, comstack::flags, tcpip_state::host_port, tcpip_state::ipv6_only, PROTO_HTTP, comstack::protocol, ssl_type(), comstack::state, tcpip_getaddrinfo(), tcpip_init(), comstack::type, xfree, xstrdup, and yaz_thread_create().

Referenced by tcpip_type().

tcpip_type()

COMSTACK tcpip_type	(	int	s,
		int	flags,
		int	protocol,
		void *	vp
	)

Definition at line 207 of file tcpip.c.

References comstack::cerrno, comstack::cprivate, CS_NONE, CS_ST_IDLE, CS_ST_UNBND, comstack::event, comstack::f_accept, comstack::f_addrstr, comstack::f_bind, comstack::f_close, comstack::f_connect, comstack::f_get, comstack::f_listen, comstack::f_more, comstack::f_put, comstack::f_rcvconnect, comstack::f_set_blocking, comstack::f_straddr, comstack::flags, comstack::io_pending, comstack::iofile, log_level, comstack::max_recv_bytes, comstack::protocol, comstack::state, tcpip_accept(), tcpip_addrstr(), tcpip_bind(), tcpip_close(), tcpip_connect(), tcpip_get(), tcpip_init(), tcpip_listen(), tcpip_more(), tcpip_put(), tcpip_rcvconnect(), tcpip_set_blocking(), tcpip_state_create(), tcpip_straddr(), tcpip_type(), comstack::type, comstack::user, xmalloc, and yaz_log().

Referenced by cs_create_host2(), cs_parse_host(), cs_set_head_only(), inetd_connection(), ssl_type(), tcpip_type(), and yaz_tcpip_create3().

yaz_ssl_create()

COMSTACK yaz_ssl_create	(	int	s,
		int	flags,
		int	protocol,
		const char *	connect_host,
		const char *	connect_auth,
		const char *	bind_host
	)

Definition at line 345 of file tcpip.c.

References connect_and_bind(), and ssl_type().

Referenced by cs_create_host2().

yaz_tcpip_create()

COMSTACK yaz_tcpip_create	(	int	s,
		int	flags,
		int	protocol,
		const char *	connect_host
	)

Definition at line 307 of file tcpip.c.

References yaz_tcpip_create2().

yaz_tcpip_create2()

COMSTACK yaz_tcpip_create2	(	int	s,
		int	flags,
		int	protocol,
		const char *	connect_host,
		const char *	bind_host
	)

Definition at line 300 of file tcpip.c.

References tcpip_state::bind_host, and yaz_tcpip_create3().

Referenced by yaz_tcpip_create().

yaz_tcpip_create3()

COMSTACK yaz_tcpip_create3	(	int	s,
		int	flags,
		int	protocol,
		const char *	connect_host,
		const char *	connect_auth,
		const char *	bind_host
	)

Definition at line 288 of file tcpip.c.

References tcpip_state::bind_host, connect_and_bind(), and tcpip_type().

Referenced by cs_create_host2(), and yaz_tcpip_create2().

Variable Documentation

log_level

int log_level = 0

static

Definition at line 144 of file tcpip.c.

Referenced by cont_connect(), create_net_socket(), tcpip_accept(), tcpip_bind(), tcpip_close(), tcpip_connect(), tcpip_get(), tcpip_init(), tcpip_listen(), tcpip_put(), tcpip_rcvconnect(), and tcpip_type().