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/*
* Wireless network adapter utilities
*
* 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 <string.h>
#include <typedefs.h>
#include <wlutils.h>
int
wl_probe(char *name)
{
int ret, val;
/* Check interface */
if ((ret = wl_ioctl(name, WLC_GET_MAGIC, &val, sizeof(val))))
return ret;
if (val != WLC_IOCTL_MAGIC)
return -1;
if ((ret = wl_ioctl(name, WLC_GET_VERSION, &val, sizeof(val))))
return ret;
if (val > WLC_IOCTL_VERSION)
return -1;
return ret;
}
int
wl_set_val(char *name, char *var, void *val, int len)
{
char buf[128];
int buf_len;
/* check for overflow */
if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
return -1;
strcpy(buf, var);
buf_len += 1;
/* append int value onto the end of the name string */
memcpy(&buf[buf_len], val, len);
buf_len += len;
return wl_ioctl(name, WLC_SET_VAR, buf, buf_len);
}
int
wl_get_val(char *name, char *var, void *val, int len)
{
char buf[128];
int ret;
/* check for overflow */
if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
return -1;
strcpy(buf, var);
if ((ret = wl_ioctl(name, WLC_GET_VAR, buf, sizeof(buf))))
return ret;
memcpy(val, buf, len);
return 0;
}
int
wl_set_int(char *name, char *var, int val)
{
return wl_set_val(name, var, &val, sizeof(val));
}
int
wl_get_int(char *name, char *var, int *val)
{
return wl_get_val(name, var, val, sizeof(*val));
}
/**************************************************************************
* The following code is from Broadcom (wl.c) *
**************************************************************************/
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 (-1);
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);
}
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 (-1);
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;
}
/*
* set named driver variable to int value
* calling example: wl_iovar_setint(ifname, "arate", rate)
*/
int
wl_iovar_setint(char *ifname, char *iovar, int val)
{
return wl_iovar_set(ifname, iovar, &val, sizeof(val));
}
/*
* get named driver variable to int value and return error indication
* calling example: wl_iovar_getint(ifname, "arate", &rate)
*/
int
wl_iovar_getint(char *ifname, char *iovar, int *val)
{
return wl_iovar_get(ifname, iovar, val, sizeof(int));
}
/*
* 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 -1;
}
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
*/
int
wl_bssiovar_setbuf(char *ifname, char *iovar, int bssidx, void *param,
int paramlen, void *bufptr, int buflen)
{
int err;
uint 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
*/
int
wl_bssiovar_getbuf(char *ifname, char *iovar, int bssidx, void *param,
int paramlen, void *bufptr, int buflen)
{
int err;
uint 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;
}
/*
* set named & bss indexed driver variable to int value
*/
int
wl_bssiovar_setint(char *ifname, char *iovar, int bssidx, int val)
{
return wl_bssiovar_set(ifname, iovar, bssidx, &val, sizeof(int));
}
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