release/src/router/shared/wl_linux.c

   1 /*
   2  * Wireless network adapter utilities (linux-specific)
   3  *
   4  * Copyright 2005, Broadcom Corporation
   5  * All Rights Reserved.
   6  *
   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.
  11  *
  12  * $Id: wl_linux.c,v 1.1.1.8 2005/03/07 07:31:20 kanki Exp $
  13  */
  14
  15 #include <stdio.h>
  16 #include <unistd.h>
  17 #include <string.h>
  18 #include <errno.h>
  19 #include <sys/ioctl.h>
  20 #include <net/if.h>
  21
  22 typedef u_int64_t u64;
  23 typedef u_int32_t u32;
  24 typedef u_int16_t u16;
  25 typedef u_int8_t u8;
  26 #include <linux/sockios.h>
  27 #include <linux/ethtool.h>
  28
  29 #include <typedefs.h>
  30 #include <wlioctl.h>
  31 #include <wlutils.h>
  32
  33 // xref: nas,wlconf,httpd,rc,
  34 int wl_ioctl(char *name, int cmd, void *buf, int len)
  35 {
  36         struct ifreq ifr;
  37         wl_ioctl_t ioc;
  38         int ret = 0;
  39         int s;
  40
  41         /* open socket to kernel */
  42         if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  43                 perror("socket");
  44                 return errno;
  45         }
  46
  47         /* do it */
  48         ioc.cmd = cmd;
  49         ioc.buf = buf;
  50         ioc.len = len;
  51
  52         /* initializing the remaining fields */
  53         ioc.set = FALSE;
  54         ioc.used = 0;
  55         ioc.needed = 0;
  56
  57         strncpy(ifr.ifr_name, name, IFNAMSIZ);
  58         ifr.ifr_data = (caddr_t) &ioc;
  59         ret = ioctl(s, SIOCDEVPRIVATE, &ifr);
  60 /*
  61         if ((ret = ioctl(s, SIOCDEVPRIVATE, &ifr)) < 0)
  62                 if (cmd != WLC_GET_MAGIC)
  63                         perror(ifr.ifr_name);
  64 */
  65         /* cleanup */
  66         close(s);
  67         return ret;
  68 }
  69
  70 // xref: wl.c:wl_probe()
  71 int wl_get_dev_type(char *name, void *buf, int len)
  72 {
  73         int s;
  74         int ret;
  75         struct ifreq ifr;
  76         struct ethtool_drvinfo info;
  77
  78         /* open socket to kernel */
  79         if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  80                 perror("socket");
  81                 return -1;
  82         }
  83
  84         /* get device type */
  85         memset(&info, 0, sizeof(info));
  86         info.cmd = ETHTOOL_GDRVINFO;
  87         ifr.ifr_data = (caddr_t)&info;
  88         strlcpy(ifr.ifr_name, name, IFNAMSIZ);
  89         if ((ret = ioctl(s, SIOCETHTOOL, &ifr)) < 0) {
  90                 *(char *)buf = '\0';
  91         }
  92         else {
  93                 strlcpy(buf, info.driver, len);
  94         }
  95
  96         close(s);
  97         return ret;
  98 }
  99
 100 // xref: nas,wlconf,
 101 int wl_hwaddr(char *name, unsigned char *hwaddr)
 102 {
 103         struct ifreq ifr;
 104         int ret = 0;
 105         int s;
 106
 107         /* open socket to kernel */
 108         if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
 109                 perror("socket");
 110                 return errno;
 111         }
 112
 113         /* do it */
 114         strlcpy(ifr.ifr_name, name, IFNAMSIZ);
 115         if ((ret = ioctl(s, SIOCGIFHWADDR, &ifr)) == 0)
 116                 memcpy(hwaddr, ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
 117
 118         /* cleanup */
 119         close(s);
 120         return ret;
 121 }
 122