openwrt-xburst/package/openwrt/libshared/wl_linux.c

/*
 * Wireless network adapter utilities (linux-specific)
 *
 * Copyright 2004, Broadcom Corporation
 * All Rights Reserved.
 * 
 * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
 * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
 * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
 *
 * $Id$
 */

#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <net/if.h>

#include <typedefs.h>
#include <wlioctl.h>
#include <wlutils.h>

int
wl_ioctl(char *name, int cmd, void *buf, int len)
{
	struct ifreq ifr;
	wl_ioctl_t ioc;
	int ret = 0;
 	int s;

	/* open socket to kernel */
	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
		perror("socket");
		return errno;
	}

	/* do it */
	ioc.cmd = cmd;
	ioc.buf = buf;
	ioc.len = len;
	strncpy(ifr.ifr_name, name, IFNAMSIZ);
	ifr.ifr_data = (caddr_t) &ioc;
	if ((ret = ioctl(s, SIOCDEVPRIVATE, &ifr)) < 0)
		if (cmd != WLC_GET_MAGIC)
			perror(ifr.ifr_name);

	/* cleanup */
	close(s);
	return ret;
}

int
wl_hwaddr(char *name, unsigned char *hwaddr)
{
	struct ifreq ifr;
	int ret = 0;
 	int s;

	/* open socket to kernel */
	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
		perror("socket");
		return errno;
	}

	/* do it */
	strncpy(ifr.ifr_name, name, IFNAMSIZ);
	if ((ret = ioctl(s, SIOCGIFHWADDR, &ifr)) == 0)
		memcpy(hwaddr, ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);

	/* cleanup */
	close(s);
	return ret;
}