2 * Wireless network adapter utilities
4 * Copyright 2006, 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.
12 * $Id: wl.c,v 1.1.1.11 2006/02/27 03:43:20 honor Exp $
18 #include <sys/ioctl.h>
20 #include <linux/types.h>
22 typedef u_int64_t u64;
23 typedef u_int32_t u32;
24 typedef u_int16_t u16;
26 #include <linux/sockios.h>
27 #include <linux/ethtool.h>
35 wl_ioctl(char *name, int cmd, void *buf, int len)
42 /* open socket to kernel */
43 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
52 strncpy(ifr.ifr_name, name, IFNAMSIZ);
53 ifr.ifr_data = (caddr_t) &ioc;
54 if ((ret = ioctl(s, SIOCDEVPRIVATE, &ifr)) < 0)
62 wl_get_dev_type(char *name, void *buf, int len)
67 struct ethtool_drvinfo info;
69 /* open socket to kernel */
70 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
76 memset(&info, 0, sizeof(info));
77 info.cmd = ETHTOOL_GDRVINFO;
78 ifr.ifr_data = (caddr_t)&info;
79 strncpy(ifr.ifr_name, name, IFNAMSIZ);
80 if ((ret = ioctl(s, SIOCETHTOOL, &ifr)) < 0) {
83 strncpy(buf, info.driver, len);
94 if ((ret = wl_get_dev_type(name, buf, 3)) < 0)
97 if (strncmp(buf, "wl", 2))
99 if ((ret = wl_ioctl(name, WLC_GET_VERSION, &val, sizeof(val))))
101 if (val > WLC_IOCTL_VERSION)
108 wl_iovar_getbuf(char *ifname, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
114 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
115 iolen = namelen + paramlen;
117 /* check for overflow */
119 return (BCME_BUFTOOSHORT);
121 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
122 memcpy((int8*)bufptr + namelen, param, paramlen);
124 err = wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
130 wl_iovar_setbuf(char *ifname, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
135 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
136 iolen = namelen + paramlen;
138 /* check for overflow */
140 return (BCME_BUFTOOSHORT);
142 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
143 memcpy((int8*)bufptr + namelen, param, paramlen);
145 return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
149 wl_iovar_set(char *ifname, char *iovar, void *param, int paramlen)
151 char smbuf[WLC_IOCTL_SMLEN];
153 return wl_iovar_setbuf(ifname, iovar, param, paramlen, smbuf, sizeof(smbuf));
157 wl_iovar_get(char *ifname, char *iovar, void *bufptr, int buflen)
159 char smbuf[WLC_IOCTL_SMLEN];
162 /* use the return buffer if it is bigger than what we have on the stack */
163 if (buflen > sizeof(smbuf)) {
164 ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, bufptr, buflen);
166 ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, smbuf, sizeof(smbuf));
168 memcpy(bufptr, smbuf, buflen);
176 * format a bsscfg indexed iovar buffer
179 wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param, int paramlen, void *bufptr, int buflen,
182 char *prefix = "bsscfg:";
188 prefixlen = strlen(prefix); /* length of bsscfg prefix */
189 namelen = strlen(iovar) + 1; /* length of iovar name + null */
190 iolen = prefixlen + namelen + sizeof(int) + paramlen;
192 /* check for overflow */
193 if (buflen < 0 || iolen > (uint)buflen) {
195 return BCME_BUFTOOSHORT;
200 /* copy prefix, no null */
201 memcpy(p, prefix, prefixlen);
204 /* copy iovar name including null */
205 memcpy(p, iovar, namelen);
208 /* bss config index as first param */
209 memcpy(p, &bssidx, sizeof(int32));
212 /* parameter buffer follows */
214 memcpy(p, param, paramlen);
221 * set named & bss indexed driver variable to buffer value
224 wl_bssiovar_setbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
230 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
234 return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
238 * get named & bss indexed driver variable buffer value
241 wl_bssiovar_getbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
247 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
251 return wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
255 * set named & bss indexed driver variable to buffer value
258 wl_bssiovar_set(char *ifname, char *iovar, int bssidx, void *param, int paramlen)
260 char smbuf[WLC_IOCTL_SMLEN];
262 return wl_bssiovar_setbuf(ifname, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf));
266 * get named & bss indexed driver variable buffer value
269 wl_bssiovar_get(char *ifname, char *iovar, int bssidx, void *outbuf, int len)
271 char smbuf[WLC_IOCTL_SMLEN];
274 /* use the return buffer if it is bigger than what we have on the stack */
275 if (len > (int)sizeof(smbuf)) {
276 err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, outbuf, len);
278 memset(smbuf, 0, sizeof(smbuf));
279 err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf));
281 memcpy(outbuf, smbuf, len);
288 wl_printlasterror(char *name)
290 char err_buf[WLC_IOCTL_SMLEN];
291 strcpy(err_buf, "bcmerrstr");
293 fprintf(stderr, "Error: ");
294 if ( wl_ioctl(name, WLC_GET_VAR, err_buf, sizeof (err_buf)) != 0)
295 fprintf(stderr, "Error getting the Errorstring from driver\n");
297 fprintf(stderr, err_buf);