/home/brennan/n-sim/Vaike/linux/system-addons/networking/mesh_neighbor.c File Reference

WSN mesh network neighbors. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/route.h>
#include <errno.h>
#include <syslog.h>
#include <netdb.h>
#include <math.h>
#include "mesh_neighbor.h"
#include "sensor_self.h"

Go to the source code of this file.

Defines

#define MESH_N_DISCOVERY_PORT   652

#define HELLO_LEN   ((sizeof(double)*3) + 32)

#define HELLO_INTERVAL   180

Functions

unsigned int mac_to_id (char *addr)

void init_n_entry (self_t *self, neighbor_entry_t *entry)

neighbor_entry_t * new_n_entry (self_t *self)

int add_n_entry (self_t *self, unsigned int id, neighbor_entry_t *entry)

int remove_n_entry (self_t *self, unsigned int id, neighbor_entry_t *entry)

neighbor_entry_t * retrieve_n_entry (self_t *self, unsigned int id)

neighbor_entry_t * iterate_n_entries (self_t *self)

unsigned int num_n_entries (self_t *self)

void empty_n_entries (self_t *self)

neighbor_entry_t * neighbor_by_position (self_t *self, double bearing, double distance)

neighbor_entry_t * neighbor_by_ip (self_t *self, struct sockaddr_in *ip)

int neighbor_address (self_t *self, char *addr, double bearing, double distance)

int neighbor_position (self_t *self, double *bearing, double *distance, char *addr)

int find_neighbors (self_t *self)

int neighbor_discovery (self_t *self)

Detailed Description

WSN mesh network neighbors.

Revision: 1.1

Original Author: Sean M. Brennan <brennan@lanl.gov>

Author: sean_m_brennan

Created: August 1, 2007

Date: 2008/02/03 22:00:48

Definition in file mesh_neighbor.c.

Define Documentation

#define HELLO_INTERVAL 180

Definition at line 56 of file mesh_neighbor.c.
Referenced by neighbor_discovery().

#define HELLO_LEN ((sizeof(double)*3) + 32)

We borrow the IANA assigned HELLO port * http://www.iana.org/assignments/port-numbers
Definition at line 55 of file mesh_neighbor.c.
Referenced by find_neighbors(), and neighbor_discovery().

#define MESH_N_DISCOVERY_PORT 652

Definition at line 51 of file mesh_neighbor.c.
Referenced by find_neighbors(), and neighbor_discovery().

Function Documentation

int add_n_entry ( self_t * self,

unsigned int id,

neighbor_entry_t * entry

)

Definition at line 82 of file mesh_neighbor.c.
References avl_insert(), _self::neighbors, and _neighbor_entry::node_id.
Referenced by neighbor_discovery().

void empty_n_entries ( self_t * self )

Definition at line 130 of file mesh_neighbor.c.
References destroy_avltree(), iterate_n_entries(), _self::neighbors, and avltree::root.

int find_neighbors ( self_t * self )

Definition at line 200 of file mesh_neighbor.c.
References _self::altitude, _self::broadcast, he, HELLO_LEN, _self::interface, _self::latitude, _self::longitude, _self::mac_addr, MESH_N_DISCOVERY_PORT, mesh_sendmsg(), and mesh_socket().
Referenced by neighbor_discovery().

void init_n_entry ( self_t * self,

neighbor_entry_t * entry

)

Definition at line 65 of file mesh_neighbor.c.
References _neighbor_entry::alt, _neighbor_entry::lat, _neighbor_entry::lon, _self::mac_addr, mac_to_id(), and _neighbor_entry::node_id.
Referenced by new_n_entry().

neighbor_entry_t* iterate_n_entries ( self_t * self )

Definition at line 110 of file mesh_neighbor.c.
References avl_find_min(), _self::n_iter, and _self::neighbors.
Referenced by empty_n_entries(), neighbor_by_ip(), and neighbor_by_position().

unsigned int mac_to_id ( char * addr )

Definition at line 59 of file mesh_neighbor.c.
Referenced by init_n_entry(), neighbor_discovery(), and neighbor_position().

int neighbor_address ( self_t * self,

char * addr,

double bearing,

double distance

)

Definition at line 172 of file mesh_neighbor.c.
Referenced by mesh_link_energy(), mesh_link_goodput(), mesh_link_reliability(), and mesh_sendto_nextdoor().

neighbor_entry_t* neighbor_by_ip ( self_t * self,

struct sockaddr_in * ip

)

Definition at line 158 of file mesh_neighbor.c.
References _neighbor_entry::ip, and iterate_n_entries().
Referenced by mesh_recv_nextdoor().

neighbor_entry_t* neighbor_by_position ( self_t * self,

double bearing,

double distance

)

Definition at line 143 of file mesh_neighbor.c.
References _neighbor_entry::bearing, _neighbor_entry::distance, and iterate_n_entries().
Referenced by mesh_send_nextdoor(), and neighbor_address().

int neighbor_discovery ( self_t * self )

Definition at line 273 of file mesh_neighbor.c.
References add_n_entry(), _self::altitude, error, find_neighbors(), HELLO_INTERVAL, HELLO_LEN, _self::interface, _self::latitude, _self::longitude, mac_to_id(), memcpy, MESH_N_COMM_PORT, MESH_N_DISCOVERY_PORT, mesh_socket(), new_n_entry(), and timed_recv().
Referenced by discover_neighbors().

int neighbor_position ( self_t * self,

double * bearing,

double * distance,

char * addr

)

Definition at line 185 of file mesh_neighbor.c.
Referenced by mesh_recvfrom_nextdoor().

neighbor_entry_t* new_n_entry ( self_t * self )

Definition at line 74 of file mesh_neighbor.c.
References init_n_entry().
Referenced by neighbor_discovery().

unsigned int num_n_entries ( self_t * self )

Definition at line 124 of file mesh_neighbor.c.
References avl_size(), and _self::neighbors.

int remove_n_entry ( self_t * self,

unsigned int id,

neighbor_entry_t * entry

)

Definition at line 94 of file mesh_neighbor.c.
References avl_delete(), and _self::neighbors.

neighbor_entry_t* retrieve_n_entry ( self_t * self,

unsigned int id

)

Definition at line 104 of file mesh_neighbor.c.
References avl_retrieve(), and _self::neighbors.
Referenced by neighbor_position().