2 * Wireless network adapter utilities
4 * Copyright 2004, Broadcom Corporation
7 * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
8 * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
9 * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
10 * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
18 #include <sys/ioctl.h>
25 wl_ioctl(char *name, int cmd, void *buf, int len)
32 /* open socket to kernel */
33 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
42 strncpy(ifr.ifr_name, name, IFNAMSIZ);
43 ifr.ifr_data = (caddr_t) &ioc;
44 if ((ret = ioctl(s, SIOCDEVPRIVATE, &ifr)) < 0)
45 if (cmd != WLC_GET_MAGIC)
54 wl_hwaddr(char *name, unsigned char *hwaddr)
60 /* open socket to kernel */
61 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
67 strncpy(ifr.ifr_name, name, IFNAMSIZ);
68 if ((ret = ioctl(s, SIOCGIFHWADDR, &ifr)) == 0)
69 memcpy(hwaddr, ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
82 if ((ret = wl_ioctl(name, WLC_GET_MAGIC, &val, sizeof(val))))
84 if (val != WLC_IOCTL_MAGIC)
86 if ((ret = wl_ioctl(name, WLC_GET_VERSION, &val, sizeof(val))))
88 if (val > WLC_IOCTL_VERSION)
95 wl_set_val(char *name, char *var, void *val, int len)
100 /* check for overflow */
101 if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
107 /* append int value onto the end of the name string */
108 memcpy(&buf[buf_len], val, len);
111 return wl_ioctl(name, WLC_SET_VAR, buf, buf_len);
115 wl_get_val(char *name, char *var, void *val, int len)
120 /* check for overflow */
121 if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
125 if ((ret = wl_ioctl(name, WLC_GET_VAR, buf, sizeof(buf))))
128 memcpy(val, buf, len);
133 wl_set_int(char *name, char *var, int val)
135 return wl_set_val(name, var, &val, sizeof(val));
139 wl_get_int(char *name, char *var, int *val)
141 return wl_get_val(name, var, val, sizeof(*val));
144 /**************************************************************************
145 * The following code is from Broadcom (wl.c) *
146 **************************************************************************/
149 wl_iovar_getbuf(char *ifname, char *iovar, void *param,
150 int paramlen, void *bufptr, int buflen)
156 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
157 iolen = namelen + paramlen;
159 /* check for overflow */
163 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
164 memcpy((int8*)bufptr + namelen, param, paramlen);
166 err = wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
172 wl_iovar_setbuf(char *ifname, char *iovar, void *param,
173 int paramlen, void *bufptr, int buflen)
178 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
179 iolen = namelen + paramlen;
181 /* check for overflow */
185 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
186 memcpy((int8*)bufptr + namelen, param, paramlen);
188 return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
192 wl_iovar_set(char *ifname, char *iovar, void *param, int paramlen)
194 char smbuf[WLC_IOCTL_SMLEN];
196 return wl_iovar_setbuf(ifname, iovar, param, paramlen, smbuf, sizeof(smbuf));
200 wl_iovar_get(char *ifname, char *iovar, void *bufptr, int buflen)
202 char smbuf[WLC_IOCTL_SMLEN];
205 /* use the return buffer if it is bigger than what we have on the stack */
206 if (buflen > sizeof(smbuf)) {
207 ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, bufptr, buflen);
209 ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, smbuf, sizeof(smbuf));
211 memcpy(bufptr, smbuf, buflen);
218 * set named driver variable to int value
219 * calling example: wl_iovar_setint(ifname, "arate", rate)
222 wl_iovar_setint(char *ifname, char *iovar, int val)
224 return wl_iovar_set(ifname, iovar, &val, sizeof(val));
228 * get named driver variable to int value and return error indication
229 * calling example: wl_iovar_getint(ifname, "arate", &rate)
232 wl_iovar_getint(char *ifname, char *iovar, int *val)
234 return wl_iovar_get(ifname, iovar, val, sizeof(int));
238 * format a bsscfg indexed iovar buffer
241 wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param,
242 int paramlen, void *bufptr, int buflen, int *plen)
244 char *prefix = "bsscfg:";
250 prefixlen = strlen(prefix); /* length of bsscfg prefix */
251 namelen = strlen(iovar) + 1; /* length of iovar name + null */
252 iolen = prefixlen + namelen + sizeof(int) + paramlen;
254 /* check for overflow */
255 if (buflen < 0 || iolen > (uint)buflen) {
262 /* copy prefix, no null */
263 memcpy(p, prefix, prefixlen);
266 /* copy iovar name including null */
267 memcpy(p, iovar, namelen);
270 /* bss config index as first param */
271 memcpy(p, &bssidx, sizeof(int32));
274 /* parameter buffer follows */
276 memcpy(p, param, paramlen);
283 * set named & bss indexed driver variable to buffer value
286 wl_bssiovar_setbuf(char *ifname, char *iovar, int bssidx, void *param,
287 int paramlen, void *bufptr, int buflen)
292 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
296 return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
300 * get named & bss indexed driver variable buffer value
303 wl_bssiovar_getbuf(char *ifname, char *iovar, int bssidx, void *param,
304 int paramlen, void *bufptr, int buflen)
309 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
313 return wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
317 * set named & bss indexed driver variable to buffer value
320 wl_bssiovar_set(char *ifname, char *iovar, int bssidx, void *param, int paramlen)
322 char smbuf[WLC_IOCTL_SMLEN];
324 return wl_bssiovar_setbuf(ifname, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf));
328 * get named & bss indexed driver variable buffer value
331 wl_bssiovar_get(char *ifname, char *iovar, int bssidx, void *outbuf, int len)
333 char smbuf[WLC_IOCTL_SMLEN];
336 /* use the return buffer if it is bigger than what we have on the stack */
337 if (len > (int)sizeof(smbuf)) {
338 err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, outbuf, len);
340 memset(smbuf, 0, sizeof(smbuf));
341 err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf));
343 memcpy(outbuf, smbuf, len);
350 * set named & bss indexed driver variable to int value
353 wl_bssiovar_setint(char *ifname, char *iovar, int bssidx, int val)
355 return wl_bssiovar_set(ifname, iovar, bssidx, &val, sizeof(int));