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/*
* eth-pfilt.c
*
* XXX - requires 'cd dev && ./MAKEDEV pfilt' if not already configured...
*
* Copyright (c) 2001 Dug Song <dugsong@monkey.org>
*
* $Id: eth-pfilt.c 563 2005-02-10 17:06:36Z dugsong $
*/
#include "config.h"
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/pfilt.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "dnet.h"
struct eth_handle {
int fd;
int sock;
char device[16];
};
eth_t *
eth_open(const char *device)
{
struct eth_handle *e;
int fd;
if ((e = calloc(1, sizeof(*e))) != NULL) {
strlcpy(e->device, device, sizeof(e->device));
if ((e->fd = pfopen(e->device, O_WRONLY)) < 0 ||
(e->sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
e = eth_close(e);
}
return (e);
}
int
eth_get(eth_t *e, eth_addr_t *ea)
{
struct ifdevea ifd;
strlcpy(ifd.ifr_name, e->device, sizeof(ifd.ifr_name));
if (ioctl(e->sock, SIOCRPHYSADDR, &ifd) < 0)
return (-1);
memcpy(ea, ifd.current_pa, ETH_ADDR_LEN);
return (0);
}
int
eth_set(eth_t *e, const eth_addr_t *ea)
{
struct ifdevea ifd;
strlcpy(ifd.ifr_name, e->device, sizeof(ifd.ifr_name));
memcpy(ifd.current_pa, ea, ETH_ADDR_LEN);
return (ioctl(e->sock, SIOCSPHYSADDR, &ifd));
}
ssize_t
eth_send(eth_t *e, const void *buf, size_t len)
{
return (write(e->fd, buf, len));
}
eth_t *
eth_close(eth_t *e)
{
if (e != NULL) {
if (e->fd >= 0)
close(e->fd);
if (e->sock >= 0)
close(e->sock);
free(e);
}
return (NULL);
}
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