299 lines
6.5 KiB
C
299 lines
6.5 KiB
C
/*
|
|
* Wireless network adapter utilities
|
|
*
|
|
* Copyright 2006, 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: wl.c,v 1.1.1.11 2006/02/27 03:43:20 honor Exp $
|
|
*/
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <sys/ioctl.h>
|
|
#include <net/if.h>
|
|
#include <linux/types.h>
|
|
|
|
typedef u_int64_t u64;
|
|
typedef u_int32_t u32;
|
|
typedef u_int16_t u16;
|
|
typedef u_int8_t u8;
|
|
#include <linux/sockios.h>
|
|
#include <linux/ethtool.h>
|
|
|
|
#include <typedefs.h>
|
|
#include <wlioctl.h>
|
|
#include <bcmutils.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)
|
|
|
|
/* cleanup */
|
|
close(s);
|
|
return ret;
|
|
}
|
|
|
|
static inline int
|
|
wl_get_dev_type(char *name, void *buf, int len)
|
|
{
|
|
int s;
|
|
int ret;
|
|
struct ifreq ifr;
|
|
struct ethtool_drvinfo info;
|
|
|
|
/* open socket to kernel */
|
|
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
|
perror("socket");
|
|
return -1;
|
|
}
|
|
|
|
/* get device type */
|
|
memset(&info, 0, sizeof(info));
|
|
info.cmd = ETHTOOL_GDRVINFO;
|
|
ifr.ifr_data = (caddr_t)&info;
|
|
strncpy(ifr.ifr_name, name, IFNAMSIZ);
|
|
if ((ret = ioctl(s, SIOCETHTOOL, &ifr)) < 0) {
|
|
*(char *)buf = '\0';
|
|
} else
|
|
strncpy(buf, info.driver, len);
|
|
|
|
close(s);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
wl_probe(char *name)
|
|
{
|
|
int ret, val;
|
|
char buf[3];
|
|
if ((ret = wl_get_dev_type(name, buf, 3)) < 0)
|
|
return ret;
|
|
/* Check interface */
|
|
if (strncmp(buf, "wl", 2))
|
|
return -1;
|
|
if ((ret = wl_ioctl(name, WLC_GET_VERSION, &val, sizeof(val))))
|
|
return ret;
|
|
if (val > WLC_IOCTL_VERSION)
|
|
return -1;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
wl_iovar_getbuf(char *ifname, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
|
|
{
|
|
int err;
|
|
uint namelen;
|
|
uint iolen;
|
|
|
|
namelen = strlen(iovar) + 1; /* length of iovar name plus null */
|
|
iolen = namelen + paramlen;
|
|
|
|
/* check for overflow */
|
|
if (iolen > buflen)
|
|
return (BCME_BUFTOOSHORT);
|
|
|
|
memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
|
|
memcpy((int8*)bufptr + namelen, param, paramlen);
|
|
|
|
err = wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
|
|
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
wl_iovar_setbuf(char *ifname, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
|
|
{
|
|
uint namelen;
|
|
uint iolen;
|
|
|
|
namelen = strlen(iovar) + 1; /* length of iovar name plus null */
|
|
iolen = namelen + paramlen;
|
|
|
|
/* check for overflow */
|
|
if (iolen > buflen)
|
|
return (BCME_BUFTOOSHORT);
|
|
|
|
memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
|
|
memcpy((int8*)bufptr + namelen, param, paramlen);
|
|
|
|
return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
|
|
}
|
|
|
|
int
|
|
wl_iovar_set(char *ifname, char *iovar, void *param, int paramlen)
|
|
{
|
|
char smbuf[WLC_IOCTL_SMLEN];
|
|
|
|
return wl_iovar_setbuf(ifname, iovar, param, paramlen, smbuf, sizeof(smbuf));
|
|
}
|
|
|
|
int
|
|
wl_iovar_get(char *ifname, char *iovar, void *bufptr, int buflen)
|
|
{
|
|
char smbuf[WLC_IOCTL_SMLEN];
|
|
int ret;
|
|
|
|
/* use the return buffer if it is bigger than what we have on the stack */
|
|
if (buflen > sizeof(smbuf)) {
|
|
ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, bufptr, buflen);
|
|
} else {
|
|
ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, smbuf, sizeof(smbuf));
|
|
if (ret == 0)
|
|
memcpy(bufptr, smbuf, buflen);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* format a bsscfg indexed iovar buffer
|
|
*/
|
|
static int
|
|
wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param, int paramlen, void *bufptr, int buflen,
|
|
int *plen)
|
|
{
|
|
char *prefix = "bsscfg:";
|
|
int8* p;
|
|
uint prefixlen;
|
|
uint namelen;
|
|
uint iolen;
|
|
|
|
prefixlen = strlen(prefix); /* length of bsscfg prefix */
|
|
namelen = strlen(iovar) + 1; /* length of iovar name + null */
|
|
iolen = prefixlen + namelen + sizeof(int) + paramlen;
|
|
|
|
/* check for overflow */
|
|
if (buflen < 0 || iolen > (uint)buflen) {
|
|
*plen = 0;
|
|
return BCME_BUFTOOSHORT;
|
|
}
|
|
|
|
p = (int8*)bufptr;
|
|
|
|
/* copy prefix, no null */
|
|
memcpy(p, prefix, prefixlen);
|
|
p += prefixlen;
|
|
|
|
/* copy iovar name including null */
|
|
memcpy(p, iovar, namelen);
|
|
p += namelen;
|
|
|
|
/* bss config index as first param */
|
|
memcpy(p, &bssidx, sizeof(int32));
|
|
p += sizeof(int32);
|
|
|
|
/* parameter buffer follows */
|
|
if (paramlen)
|
|
memcpy(p, param, paramlen);
|
|
|
|
*plen = iolen;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* set named & bss indexed driver variable to buffer value
|
|
*/
|
|
static int
|
|
wl_bssiovar_setbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
|
|
int buflen)
|
|
{
|
|
int err;
|
|
int iolen;
|
|
|
|
err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
|
|
if (err)
|
|
return err;
|
|
|
|
return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
|
|
}
|
|
|
|
/*
|
|
* get named & bss indexed driver variable buffer value
|
|
*/
|
|
static int
|
|
wl_bssiovar_getbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
|
|
int buflen)
|
|
{
|
|
int err;
|
|
int iolen;
|
|
|
|
err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
|
|
if (err)
|
|
return err;
|
|
|
|
return wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
|
|
}
|
|
|
|
/*
|
|
* set named & bss indexed driver variable to buffer value
|
|
*/
|
|
int
|
|
wl_bssiovar_set(char *ifname, char *iovar, int bssidx, void *param, int paramlen)
|
|
{
|
|
char smbuf[WLC_IOCTL_SMLEN];
|
|
|
|
return wl_bssiovar_setbuf(ifname, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf));
|
|
}
|
|
|
|
/*
|
|
* get named & bss indexed driver variable buffer value
|
|
*/
|
|
int
|
|
wl_bssiovar_get(char *ifname, char *iovar, int bssidx, void *outbuf, int len)
|
|
{
|
|
char smbuf[WLC_IOCTL_SMLEN];
|
|
int err;
|
|
|
|
/* use the return buffer if it is bigger than what we have on the stack */
|
|
if (len > (int)sizeof(smbuf)) {
|
|
err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, outbuf, len);
|
|
} else {
|
|
memset(smbuf, 0, sizeof(smbuf));
|
|
err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf));
|
|
if (err == 0)
|
|
memcpy(outbuf, smbuf, len);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
void
|
|
wl_printlasterror(char *name)
|
|
{
|
|
char err_buf[WLC_IOCTL_SMLEN];
|
|
strcpy(err_buf, "bcmerrstr");
|
|
|
|
fprintf(stderr, "Error: ");
|
|
if ( wl_ioctl(name, WLC_GET_VAR, err_buf, sizeof (err_buf)) != 0)
|
|
fprintf(stderr, "Error getting the Errorstring from driver\n");
|
|
else
|
|
fprintf(stderr, err_buf);
|
|
}
|