--- /dev/null
+/*
+ * Wireless network adapter utilities
+ *
+ * Copyright 2006, 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: wl.c,v 1.1.1.11 2006/02/27 03:43:20 honor Exp $
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <linux/types.h>
+
+typedef u_int64_t u64;
+typedef u_int32_t u32;
+typedef u_int16_t u16;
+typedef u_int8_t u8;
+#include <linux/sockios.h>
+#include <linux/ethtool.h>
+
+#include <typedefs.h>
+#include <wlioctl.h>
+#include <bcmutils.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)
+
+ /* cleanup */
+ close(s);
+ return ret;
+}
+
+static inline int
+wl_get_dev_type(char *name, void *buf, int len)
+{
+ int s;
+ int ret;
+ struct ifreq ifr;
+ struct ethtool_drvinfo info;
+
+ /* open socket to kernel */
+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ perror("socket");
+ return -1;
+ }
+
+ /* get device type */
+ memset(&info, 0, sizeof(info));
+ info.cmd = ETHTOOL_GDRVINFO;
+ ifr.ifr_data = (caddr_t)&info;
+ strncpy(ifr.ifr_name, name, IFNAMSIZ);
+ if ((ret = ioctl(s, SIOCETHTOOL, &ifr)) < 0) {
+ *(char *)buf = '\0';
+ } else
+ strncpy(buf, info.driver, len);
+
+ close(s);
+ return ret;
+}
+
+int
+wl_probe(char *name)
+{
+ int ret, val;
+ char buf[3];
+ if ((ret = wl_get_dev_type(name, buf, 3)) < 0)
+ return ret;
+ /* Check interface */
+ if (strncmp(buf, "wl", 2))
+ return -1;
+ if ((ret = wl_ioctl(name, WLC_GET_VERSION, &val, sizeof(val))))
+ return ret;
+ if (val > WLC_IOCTL_VERSION)
+ return -1;
+
+ return ret;
+}
+
+static 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 (BCME_BUFTOOSHORT);
+
+ 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);
+}
+
+static 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 (BCME_BUFTOOSHORT);
+
+ 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;
+}
+
+
+/*
+ * 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 BCME_BUFTOOSHORT;
+ }
+
+ 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
+ */
+static int
+wl_bssiovar_setbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
+ int buflen)
+{
+ int err;
+ int 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
+ */
+static int
+wl_bssiovar_getbuf(char *ifname, char *iovar, int bssidx, void *param, int paramlen, void *bufptr,
+ int buflen)
+{
+ int err;
+ int 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;
+}
+
+void
+wl_printlasterror(char *name)
+{
+ char err_buf[WLC_IOCTL_SMLEN];
+ strcpy(err_buf, "bcmerrstr");
+
+ fprintf(stderr, "Error: ");
+ if ( wl_ioctl(name, WLC_GET_VAR, err_buf, sizeof (err_buf)) != 0)
+ fprintf(stderr, "Error getting the Errorstring from driver\n");
+ else
+ fprintf(stderr, err_buf);
+}
projects / openwrt-10.03 / .git / blobdiff