*
* $Id$
*/
+#include <stdio.h>
+#include <unistd.h>
#include <string.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
#include <typedefs.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)
+ if (cmd != WLC_GET_MAGIC)
+ perror(ifr.ifr_name);
+
+ /* cleanup */
+ close(s);
+ return ret;
+}
+
+int
+wl_hwaddr(char *name, unsigned char *hwaddr)
+{
+ struct ifreq ifr;
+ int ret = 0;
+ int s;
+
+ /* open socket to kernel */
+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ perror("socket");
+ return errno;
+ }
+
+ /* do it */
+ strncpy(ifr.ifr_name, name, IFNAMSIZ);
+ if ((ret = ioctl(s, SIOCGIFHWADDR, &ifr)) == 0)
+ memcpy(hwaddr, ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
+
+ /* cleanup */
+ close(s);
+ return ret;
+}
+
int
wl_probe(char *name)
{
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));
+}
projects / openwrt.git / blobdiff