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.
17 #include <sys/ioctl.h>
19 #include <linux/types.h>
21 typedef u_int64_t u64;
22 typedef u_int32_t u32;
23 typedef u_int16_t u16;
25 #include <linux/sockios.h>
26 #include <linux/ethtool.h>
34 wl_ioctl(char *name, int cmd, void *buf, int len)
41 /* open socket to kernel */
42 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
51 strncpy(ifr.ifr_name, name, IFNAMSIZ);
52 ifr.ifr_data = (caddr_t) &ioc;
53 if ((ret = ioctl(s, SIOCDEVPRIVATE, &ifr)) < 0)
61 wl_get_dev_type(char *name, void *buf, int len)
66 struct ethtool_drvinfo info;
68 /* open socket to kernel */
69 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
75 memset(&info, 0, sizeof(info));
76 info.cmd = ETHTOOL_GDRVINFO;
77 ifr.ifr_data = (caddr_t)&info;
78 strncpy(ifr.ifr_name, name, IFNAMSIZ);
79 if ((ret = ioctl(s, SIOCETHTOOL, &ifr)) < 0) {
82 strncpy(buf, info.driver, len);
93 if ((ret = wl_get_dev_type(name, buf, 3)) < 0)
96 if (strncmp(buf, "wl", 2))
98 if ((ret = wl_ioctl(name, WLC_GET_VERSION, &val, sizeof(val))))
100 if (val > WLC_IOCTL_VERSION)
107 wl_iovar_getbuf(char *ifname, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
113 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
114 iolen = namelen + paramlen;
116 /* check for overflow */
118 return (BCME_BUFTOOSHORT);
120 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
121 memcpy((int8*)bufptr + namelen, param, paramlen);
123 err = wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
129 wl_iovar_setbuf(char *ifname, char *iovar, void *param, int paramlen, void *bufptr, int buflen)
134 namelen = strlen(iovar) + 1; /* length of iovar name plus null */
135 iolen = namelen + paramlen;
137 /* check for overflow */
139 return (BCME_BUFTOOSHORT);
141 memcpy(bufptr, iovar, namelen); /* copy iovar name including null */
142 memcpy((int8*)bufptr + namelen, param, paramlen);
144 return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
148 wl_iovar_set(char *ifname, char *iovar, void *param, int paramlen)
150 char smbuf[WLC_IOCTL_SMLEN];
152 return wl_iovar_setbuf(ifname, iovar, param, paramlen, smbuf, sizeof(smbuf));
156 wl_iovar_get(char *ifname, char *iovar, void *bufptr, int buflen)
158 char smbuf[WLC_IOCTL_SMLEN];
161 /* use the return buffer if it is bigger than what we have on the stack */
162 if (buflen > sizeof(smbuf)) {
163 ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, bufptr, buflen);
165 ret = wl_iovar_getbuf(ifname, iovar, NULL, 0, smbuf, sizeof(smbuf));
167 memcpy(bufptr, smbuf, buflen);
175 * format a bsscfg indexed iovar buffer
178 wl_bssiovar_mkbuf(char *iovar, int bssidx, void *param, int paramlen, void *bufptr, int buflen,
181 char *prefix = "bsscfg:";
187 prefixlen = strlen(prefix); /* length of bsscfg prefix */
188 namelen = strlen(iovar) + 1; /* length of iovar name + null */
189 iolen = prefixlen + namelen + sizeof(int) + paramlen;
191 /* check for overflow */
192 if (buflen < 0 || iolen > (uint)buflen) {
194 return BCME_BUFTOOSHORT;
199 /* copy prefix, no null */
200 memcpy(p, prefix, prefixlen);
203 /* copy iovar name including null */
204 memcpy(p, iovar, namelen);
207 /* bss config index as first param */
208 memcpy(p, &bssidx, sizeof(int32));
211 /* parameter buffer follows */
213 memcpy(p, param, paramlen);
220 * set named & bss indexed driver variable to buffer value
223 wl_bssiovar_setbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
229 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
233 return wl_ioctl(ifname, WLC_SET_VAR, bufptr, iolen);
237 * get named & bss indexed driver variable buffer value
240 wl_bssiovar_getbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
246 err = wl_bssiovar_mkbuf(iovar, bssidx, param, paramlen, bufptr, buflen, &iolen);
250 return wl_ioctl(ifname, WLC_GET_VAR, bufptr, buflen);
254 * set named & bss indexed driver variable to buffer value
257 wl_bssiovar_set(char *ifname, char *iovar, int bssidx, void *param, int paramlen)
259 char smbuf[WLC_IOCTL_SMLEN];
261 return wl_bssiovar_setbuf(ifname, iovar, bssidx, param, paramlen, smbuf, sizeof(smbuf));
265 * get named & bss indexed driver variable buffer value
268 wl_bssiovar_get(char *ifname, char *iovar, int bssidx, void *outbuf, int len)
270 char smbuf[WLC_IOCTL_SMLEN];
273 /* use the return buffer if it is bigger than what we have on the stack */
274 if (len > (int)sizeof(smbuf)) {
275 err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, outbuf, len);
277 memset(smbuf, 0, sizeof(smbuf));
278 err = wl_bssiovar_getbuf(ifname, iovar, bssidx, NULL, 0, smbuf, sizeof(smbuf));
280 memcpy(outbuf, smbuf, len);
287 wl_printlasterror(char *name)
289 char err_buf[WLC_IOCTL_SMLEN];
290 strcpy(err_buf, "bcmerrstr");
292 fprintf(stderr, "Error: ");
293 if ( wl_ioctl(name, WLC_GET_VAR, err_buf, sizeof (err_buf)) != 0)
294 fprintf(stderr, "Error getting the Errorstring from driver\n");
296 fprintf(stderr, err_buf);