useful_functions.c File Reference

#include "include/ebtables_u.h"
#include "include/ethernetdb.h"
#include <stdio.h>
#include <netinet/ether.h>
#include <string.h>
#include <stdlib.h>
#include <getopt.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>

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Functions
void	ebt_print_mac (const unsigned char *mac)
void	ebt_print_mac_and_mask (const unsigned char *mac, const unsigned char *mask)
struct ethertypeent *	parseethertypebynumber (int type)
int	ebt_get_mac_and_mask (const char *from, unsigned char *to, unsigned char *mask)
int	_ebt_check_inverse (const char option[], int argc, char **argv)
void	ebt_check_option (unsigned int *flags, unsigned int mask)
void	ebt_parse_ip_address (char *address, uint32_t *addr, uint32_t *msk)
char *	ebt_mask_to_dotted (uint32_t mask)
int	string_to_number_ll (const char *s, unsigned long long min, unsigned long long max, unsigned long long *ret)
int	string_to_number_l (const char *s, unsigned long min, unsigned long max, unsigned long *ret)
int	string_to_number (const char *s, unsigned int min, unsigned int max, unsigned int *ret)
void	ebt_parse_ip6_address (char *address, struct in6_addr *addr, struct in6_addr *msk)
char *	ebt_ip6_to_numeric (const struct in6_addr *addrp)
char *	ebt_ip6_mask_to_string (const struct in6_addr *msk)

Variables
const unsigned char	mac_type_unicast [ETH_ALEN] = {0,0,0,0,0,0}
const unsigned char	msk_type_unicast [ETH_ALEN] = {1,0,0,0,0,0}
const unsigned char	mac_type_multicast [ETH_ALEN] = {1,0,0,0,0,0}
const unsigned char	msk_type_multicast [ETH_ALEN] = {1,0,0,0,0,0}
const unsigned char	mac_type_broadcast [ETH_ALEN] = {255,255,255,255,255,255}
const unsigned char	msk_type_broadcast [ETH_ALEN] = {255,255,255,255,255,255}
const unsigned char	mac_type_bridge_group [ETH_ALEN] = {0x01,0x80,0xc2,0,0,0}
const unsigned char	msk_type_bridge_group [ETH_ALEN] = {255,255,255,255,255,255}
int	ebt_printstyle_mac
int	ebt_invert = 0

Function Documentation

int _ebt_check_inverse	(	const char	option[],
		int	argc,
		char **	argv
	)

References ebt_invert, ebt_print_error, and NULL.

void ebt_check_option	(	unsigned int *	flags,
		unsigned int	mask
	)

References ebt_print_error, and mask.

int ebt_get_mac_and_mask	(	const char *	from,
		unsigned char *	to,
		unsigned char *	mask
	)

References ETH_ALEN, mac_type_bridge_group, mac_type_broadcast, mac_type_multicast, mac_type_unicast, msk_type_bridge_group, msk_type_broadcast, msk_type_multicast, msk_type_unicast, and NULL.

Referenced by do_command().

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char* ebt_ip6_mask_to_string

(

const struct in6_addr *

msk

)

References buf, and ebt_ip6_to_numeric().

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char* ebt_ip6_to_numeric

(

const struct in6_addr *

addrp

)

Referenced by ebt_ip6_mask_to_string().

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char* ebt_mask_to_dotted

(

uint32_t

mask

)

References buf.

void ebt_parse_ip6_address	(	char *	address,
		struct in6_addr *	addr,
		struct in6_addr *	msk
	)

References buf, ebt_print_error, and NULL.

void ebt_parse_ip_address	(	char *	address,
		uint32_t *	addr,
		uint32_t *	msk
	)

References ebt_print_error, and NULL.

void ebt_print_mac

(

const unsigned char *

mac

)

References ebt_printstyle_mac, and ETH_ALEN.

Referenced by ebt_print_mac_and_mask().

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void ebt_print_mac_and_mask	(	const unsigned char *	mac,
		const unsigned char *	mask
	)

References ebt_print_mac(), mac_type_bridge_group, mac_type_broadcast, mac_type_multicast, mac_type_unicast, msk_type_bridge_group, msk_type_broadcast, msk_type_multicast, and msk_type_unicast.

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struct ethertypeent* parseethertypebynumber

(

int

type

)

References ebt_print_error, and getethertypebynumber().

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int string_to_number	(	const char *	s,
		unsigned int	min,
		unsigned int	max,
		unsigned int *	ret
	)

References string_to_number_l().

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int string_to_number_l	(	const char *	s,
		unsigned long	min,
		unsigned long	max,
		unsigned long *	ret
	)

References string_to_number_ll().

Referenced by string_to_number().

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int string_to_number_ll	(	const char *	s,
		unsigned long long	min,
		unsigned long long	max,
		unsigned long long *	ret
	)

Referenced by ipset_parse_timeout(), ipset_parse_uint64(), and string_to_number_l().

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Variable Documentation

int ebt_invert = 0

Referenced by _ebt_check_inverse(), and do_command().

int ebt_printstyle_mac

Referenced by ebt_print_mac().

const unsigned char mac_type_bridge_group[ETH_ALEN] = {0x01,0x80,0xc2,0,0,0}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().

const unsigned char mac_type_broadcast[ETH_ALEN] = {255,255,255,255,255,255}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().

const unsigned char mac_type_multicast[ETH_ALEN] = {1,0,0,0,0,0}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().

const unsigned char mac_type_unicast[ETH_ALEN] = {0,0,0,0,0,0}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().

const unsigned char msk_type_bridge_group[ETH_ALEN] = {255,255,255,255,255,255}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().

const unsigned char msk_type_broadcast[ETH_ALEN] = {255,255,255,255,255,255}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().

const unsigned char msk_type_multicast[ETH_ALEN] = {1,0,0,0,0,0}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().

const unsigned char msk_type_unicast[ETH_ALEN] = {1,0,0,0,0,0}

Referenced by ebt_get_mac_and_mask(), and ebt_print_mac_and_mask().