igs.h File Reference

#include "route.h"

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Data Structures
struct	internet_gateway
struct	inet_gw_pack_hdr
struct	default_inet_gw_nexthop

Macros
#define	MIN_CONN_BANDWIDTH   3 /* 16 Kb/s */
#define	MAX_INTERNET_HNAMES   10
#define	MAX_INTERNET_HNAME_SZ   64
#define	INET_HOST_PING_TIMEOUT   3
#define	IGW_HOST_PING_TIMEOUT   10
#define	INET_NEXT_PING_WAIT   10
#define	IGW_BW_DELTA
#define	MAXIGWS
#define	RTTABLE_IGW   221 /* Routing tables from 221 to 244 */
#define	RTTABLE_ALISHIELD
#define	FWMARK_ALISHIELD   25
#define	IGW_TUNNELED   1
#define	IGW_ACTIVE
#define	IGW_RTRULE
#define	INET_GW_PACK_SZ   (sizeof(u_char)*2 + MAX_IP_SZ)
#define	IGWS_PACK_SZ(hdr)
#define	MAX_IGWS_PACK_SZ(levels)
#define	MAX_IGW_PER_QSPN_CHUNK

Typedefs
typedef struct internet_gateway	inet_gw
typedef struct default_inet_gw_nexthop	igw_nexthop

Functions
u_char	bandwidth_in_8bit (u_int x)
int	str_to_inet_gw (char *str, inet_prefix *gw, char **dev)
char **	parse_internet_hosts (char *str, int *hosts)
void	free_internet_hosts (char **hnames, int hosts)
void	init_my_igw (void)
void	init_igws (inet_gw ***igws, int **igws_counter, int levels)
void	reset_igws (inet_gw **igws, int *igws_counter, int levels)
void	free_igws (inet_gw **igws, int *igws_counter, int levels)
void	init_my_igws (inet_gw **igws, int *igws_counter, inet_gw ***my_new_igws, u_char my_bandwidth, map_node *cur_node, quadro_group *qg)
void	free_my_igws (inet_gw ***my_igs)
void	init_internet_gateway_search (void)
void	close_internet_gateway_search (void)
inet_gw *	igw_add_node (inet_gw **igws, int *igws_counter, int level, int gid, map_node *node, int ip[4], u_char bandwidth)
int	igw_del (inet_gw **igws, int *igws_counter, inet_gw *igw, int level)
inet_gw *	igw_find_node (inet_gw **igws, int level, map_node *node)
inet_gw *	igw_find_ip (inet_gw **igws, int level, u_int ip[4])
int	igw_del_node (inet_gw **, int *, int, map_node *)
void	igw_update_gnode_bw (int *, inet_gw **, inet_gw *, int, int, int)
void	igw_order (inet_gw **igws, int *igws_counter, inet_gw **my_igws, int level)
int	igw_check_inet_conn (void)
void *	igw_check_inet_conn_t (void *null)
void *	igw_monitor_igws_t (void *null)
int	igw_exec_masquerade_sh (char *script, int stop)
int	igw_exec_tcshaper_sh (char *script, int stop, char *dev, int upload_bw, int dnload_bw)
void	reset_igw_nexthop (igw_nexthop *igwn)
void	reset_igw_rules (void)
int	igw_replace_def_igws (inet_gw **igws, int *igws_counter, inet_gw **my_igws, int max_levels, int family)
char *	igw_build_bentry (u_char level, size_t *pack_sz, int *new_bblocks)
int	igw_store_bblock (bnode_hdr *bblock_hdr, bnode_chunk *bchunk, u_char level)
char *	pack_igws (inet_gw **igws, int *igws_counter, int levels, int *pack_sz)
int	unpack_igws (char *pack, size_t pack_sz, map_node *int_map, map_gnode **ext_map, int levels, inet_gw ***new_igws, int **new_igws_counter)

Variables
struct inet_gw_pack_hdr	_PACKED_
static const int_info	inet_gw_pack_hdr_iinfo = { 1, { (1<<1) }, { 0 }, { (14+ ( 1 + 1 ) ) } }
int	active_gws
igw_nexthop	multigw_nh [24]

Macro Definition Documentation

#define FWMARK_ALISHIELD   25

#define IGW_ACTIVE

Value:

(1<<1)      /* This gw is being used in the
                           routing table */

#define IGW_BW_DELTA

Value:

1       /* If the difference between the old and the new
                           igw->bandwidth is >= IGW_BW_DELTA, then 
                           me.igws is reordered and the routing table
                           updated */

#define IGW_HOST_PING_TIMEOUT   10

#define IGW_RTRULE

Value:

(1<<2)      /* The relative routing rule is already
                           present */

#define IGW_TUNNELED   1

#define IGWS_PACK_SZ

(

hdr

)

Value:

({                                  \
    size_t _sz; int _pi;                        \
    _sz=sizeof(struct inet_gw_pack_hdr);                \
    for(_pi=0; _pi<(hdr)->levels; _pi++)                \
        _sz+=INET_GW_PACK_SZ*((hdr)->gws[_pi]);         \
    _sz;                                \
})

#define INET_GW_PACK_SZ   (sizeof(u_char)*2 + MAX_IP_SZ)

#define INET_HOST_PING_TIMEOUT   3

#define INET_NEXT_PING_WAIT   10

#define MAX_IGW_PER_QSPN_CHUNK

Value:

16  /* Maximum number of IGWs 
                           contained in a single 
                           QSPN chunk */

#define MAX_IGWS_PACK_SZ

(

levels

)

Value:

(sizeof(struct inet_gw_pack_hdr) + \
                        INET_GW_PACK_SZ*MAXIGWS*(levels))

#define MAX_INTERNET_HNAME_SZ   64

#define MAX_INTERNET_HNAMES   10

#define MAXIGWS

Value:

MAXGROUPNODE    /* max number of internet 
                           gateways in each level */

#define MIN_CONN_BANDWIDTH   3 /* 16 Kb/s */

#define RTTABLE_ALISHIELD

Value:

245     /* Anti Loop multi-Igw Shield
                           (what a damn long name, read the Ntk_IGS
                           RFC) */

#define RTTABLE_IGW   221 /* Routing tables from 221 to 244 */

Typedef Documentation

typedef struct default_inet_gw_nexthop igw_nexthop

typedef struct internet_gateway inet_gw

Function Documentation

u_char bandwidth_in_8bit

(

u_int

x

)

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void close_internet_gateway_search

(

void

)

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void free_igws	(	inet_gw **	igws,
		int *	igws_counter,
		int	levels
	)

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void free_internet_hosts	(	char **	hnames,
		int	hosts
	)

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void free_my_igws

(

inet_gw ***

my_igs

)

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inet_gw* igw_add_node	(	inet_gw **	igws,
		int *	igws_counter,
		int	level,
		int	gid,
		map_node *	node,
		int	ip[4],
		u_char	bandwidth
	)

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char* igw_build_bentry	(	u_char	level,
		size_t *	pack_sz,
		int *	new_bblocks
	)

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int igw_check_inet_conn

(

void

)

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void* igw_check_inet_conn_t

(

void *

null

)

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int igw_del	(	inet_gw **	igws,
		int *	igws_counter,
		inet_gw *	igw,
		int	level
	)

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int igw_del_node	(	inet_gw **	,
		int *	,
		int	,
		map_node *
	)

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int igw_exec_masquerade_sh	(	char *	script,
		int	stop
	)

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int igw_exec_tcshaper_sh	(	char *	script,
		int	stop,
		char *	dev,
		int	upload_bw,
		int	dnload_bw
	)

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inet_gw* igw_find_ip	(	inet_gw **	igws,
		int	level,
		u_int	ip[4]
	)

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inet_gw* igw_find_node	(	inet_gw **	igws,
		int	level,
		map_node *	node
	)

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void* igw_monitor_igws_t

(

void *

null

)

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void igw_order	(	inet_gw **	igws,
		int *	igws_counter,
		inet_gw **	my_igws,
		int	level
	)

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int igw_replace_def_igws	(	inet_gw **	igws,
		int *	igws_counter,
		inet_gw **	my_igws,
		int	max_levels,
		int	family
	)

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int igw_store_bblock	(	bnode_hdr *	bblock_hdr,
		bnode_chunk *	bchunk,
		u_char	level
	)

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void igw_update_gnode_bw	(	int *	,
		inet_gw **	,
		inet_gw *	,
		int	,
		int	,
		int
	)

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void init_igws	(	inet_gw ***	igws,
		int **	igws_counter,
		int	levels
	)

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void init_internet_gateway_search

(

void

)

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void init_my_igw

(

void

)

void init_my_igws	(	inet_gw **	igws,
		int *	igws_counter,
		inet_gw ***	my_new_igws,
		u_char	my_bandwidth,
		map_node *	cur_node,
		quadro_group *	qg
	)

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char* pack_igws	(	inet_gw **	igws,
		int *	igws_counter,
		int	levels,
		int *	pack_sz
	)

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char** parse_internet_hosts	(	char *	str,
		int *	hosts
	)

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void reset_igw_nexthop

(

igw_nexthop *

igwn

)

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void reset_igw_rules

(

void

)

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void reset_igws	(	inet_gw **	igws,
		int *	igws_counter,
		int	levels
	)

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int str_to_inet_gw	(	char *	str,
		inet_prefix *	gw,
		char **	dev
	)

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int unpack_igws	(	char *	pack,
		size_t	pack_sz,
		map_node *	int_map,
		map_gnode **	ext_map,
		int	levels,
		inet_gw ***	new_igws,
		int **	new_igws_counter
	)

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Variable Documentation

struct inet_gw_pack_hdr _PACKED_

int active_gws

const int_info inet_gw_pack_hdr_iinfo = { 1, { (1<<1) }, { 0 }, { (14+ ( 1 + 1 ) ) } }

static

igw_nexthop multigw_nh[24]