dsi_tcp.c File Reference

#include <arpa/inet.h>
#include <errno.h>
#include <net/if.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <atalk/logger.h>
#include <tcpd.h>
#include <atalk/dsi.h>
#include <atalk/compat.h>
#include <atalk/util.h>
#include <atalk/errchk.h>

Macros
#define	min(a, b)   ((a) < (b) ? (a) : (b))
#define	DSI_TCPMAXPEND   20
#define	DSI_TCPTIMEOUT   120
#define	SOCKLEN_T   unsigned int
#define	IFF_SLAVE   0
#define	SOL_TCP   IPPROTO_TCP
#define	AI_NUMERICSERV   0

Functions
static void	dsi_tcp_close (DSI *dsi)
static void	timeout_handler (int sig)
static void	dsi_init_buffer (DSI *dsi)
void	dsi_free (DSI *dsi)
static pid_t	dsi_tcp_open (DSI *dsi)
static void	guess_interface (DSI *dsi, const char *hostname, const char *port)
static int	dsi_tcp_listen (const char *address, const char *port, struct addrinfo *hints, DSI *dsi, bool *psocket_err_afnotsup)
int	dsi_tcp_init (DSI *dsi, const char *hostname, const char *inaddress, const char *inport)
	Initialize DSI over TCP.

Variables
int	allow_severity = log_info
int	deny_severity = log_warning
static struct itimerval	itimer

Macro Definition Documentation

AI_NUMERICSERV

#define AI_NUMERICSERV   0

DSI_TCPMAXPEND

#define DSI_TCPMAXPEND   20

max # of pending connections

DSI_TCPTIMEOUT

#define DSI_TCPTIMEOUT   120

timeout in seconds for connections

IFF_SLAVE

#define IFF_SLAVE   0

min

#define min	(		a,
			b
	)		((a) < (b) ? (a) : (b))

SOCKLEN_T

#define SOCKLEN_T   unsigned int

SOL_TCP

#define SOL_TCP   IPPROTO_TCP

Function Documentation

dsi_free()

void dsi_free

(

DSI *

dsi

)

Free any allocated resources of the master afpd DSI objects and close server socket

dsi_init_buffer()

static void dsi_init_buffer ( DSI *  dsi )

static

Allocate DSI read buffer and read-ahead buffer

dsi_tcp_close()

static void dsi_tcp_close ( DSI *  dsi )

static

dsi_tcp_init()

int dsi_tcp_init	(	DSI *	dsi,
		const char *	hostname,
		const char *	inaddress,
		const char *	inport
	)

Initialize DSI over TCP.

Parameters

[in,out]	dsi	DSI handle
[in]	hostname	pointer to hostname string
[in]	inaddress	Optional IPv4 or IPv6 address with an optional port, may be NULL
[in]	inport	pointer to port string

Creates listening AFP/DSI socket. If the parameter inaddress is NULL, then we listen on the wildcard address, i,e, on all interfaces. That should mean listening on the IPv6 address "::" on IPv4/IPv6 dual stack kernels, accepting both v4 and v6 requests.

If the parameter inaddress is not NULL, then we only listen on the given address. The parameter may contain a port number using the URL format for address and port:

IPv4, IPv4:port, IPv6, [IPv6], [IPv6]:port

Parameter inport must be a valid pointer to a port string and is used if the inaddress parameter doesn't contain a port.

Returns

0 on success, -1 on failure

dsi_tcp_listen()

static int dsi_tcp_listen ( const char *  address, const char *  port, struct addrinfo *  hints, DSI *  dsi, bool *  psocket_err_afnotsup  )

static

dsi_tcp_open()

static pid_t dsi_tcp_open ( DSI *  dsi )

static

accept the socket and do a little sanity checking

guess_interface()

static void guess_interface ( DSI *  dsi, const char *  hostname, const char *  port  )

static

timeout_handler()

static void timeout_handler ( int  sig )

static

alarm handler for tcp_open

Variable Documentation

allow_severity

int allow_severity = log_info

deny_severity

int deny_severity = log_warning

itimer

struct itimerval itimer

static