nbdsrv.c File Reference

#include "config.h"
#include "nbd-debug.h"
#include <nbdsrv.h>
#include <assert.h>
#include <ctype.h>
#include <netdb.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <cliserv.h>

Go to the source code of this file.

Macros
#define	LINELEN   256
	Size of static buffer used to read the authorization file (yuck) More...

Functions
bool	address_matches (const char *mask, const struct sockaddr *addr, GError **err)
	Check whether a given address matches a given netmask. More...
uint8_t	getmaskbyte (int masklen)
	Gets a byte to allow for address masking. More...
int	authorized_client (CLIENT *opts)
	Check whether a client is allowed to connect. More...
SERVER *	dup_serve (const SERVER *const s)
	duplicate server More...
int	append_serve (const SERVER *const s, GArray *const a)
	append new server to array More...
uint64_t	size_autodetect (int fhandle)
	Detect the size of a file. More...

Macro Definition Documentation

#define LINELEN   256

Size of static buffer used to read the authorization file (yuck)

Definition at line 19 of file nbdsrv.c.

Function Documentation

bool address_matches	(	const char *	mask,
		const struct sockaddr *	addr,
		GError **	err
	)

Check whether a given address matches a given netmask.

Parameters

mask	the address or netmask to check against, in ASCII representation
addr	the address to check

Returns

true if the address matches the mask, false otherwise; in case of failure to parse netmask, returns false with err set appropriately.

Todo:

decide what to do with v6-mapped IPv4 addresses.

Definition at line 25 of file nbdsrv.c.

int append_serve	(	const SERVER *const	s,
		GArray *const	a
	)

append new server to array

Parameters

s	server
a	server array

Returns

0 success, -1 error

Definition at line 192 of file nbdsrv.c.

Referenced by append_new_servers(), main(), and parse_cfile().

int authorized_client

(

CLIENT *

opts

)

Check whether a client is allowed to connect.

Works with an authorization file which contains one line per machine or network, with CIDR-style netmasks.

Parameters

opts	The client who's trying to connect.

Returns

0 - authorization refused, 1 - OK

Definition at line 105 of file nbdsrv.c.

References msg.

Referenced by handle_modern_connection(), and handle_oldstyle_connection().

SERVER* dup_serve

(

const SERVER *const

s

)

duplicate server

Parameters

s	the old server we want to duplicate

Returns

new duplicated server

Definition at line 149 of file nbdsrv.c.

uint8_t getmaskbyte

(

int

masklen

)

Gets a byte to allow for address masking.

Parameters

masklen

the length of the requested mask.

Returns

if the length of the mask is 8 or longer, 0xFF. Otherwise, a byte with `masklen' number of leading bits set to 1, everything else set to 0.

Definition at line 93 of file nbdsrv.c.

Referenced by set_peername().

uint64_t size_autodetect

(

int

fhandle

)

Detect the size of a file.

Parameters

fhandle

An open filedescriptor

Returns

the size of the file, or UINT64_MAX if detection was impossible.

Definition at line 252 of file nbdsrv.c.

Referenced by setupexport().