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/types.h>
  27 #include <linux/sockios.h>
  28 #include <linux/ethtool.h>
  29
  30 #include <typedefs.h>
  31 #include <wlioctl.h>
  32 #include <wlutils.h>
  33
  34 // xref: nas,wlconf,httpd,rc,
  35 int wl_ioctl(char *name, int cmd, void *buf, int len)
  36 {
  37         struct ifreq ifr;
  38         wl_ioctl_t ioc;
  39         int ret = 0;
  40         int s;
  41
  42         /* open socket to kernel */
  43         if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  44                 perror("socket");
  45                 return errno;
  46         }
  47
  48         /* do it */
  49         ioc.cmd = cmd;
  50         ioc.buf = buf;
  51         ioc.len = len;
  52
  53         /* initializing the remaining fields */
  54         ioc.set = FALSE;
  55         ioc.used = 0;
  56         ioc.needed = 0;
  57
  58         strncpy(ifr.ifr_name, name, IFNAMSIZ);
  59         ifr.ifr_data = (caddr_t) &ioc;
  60         ret = ioctl(s, SIOCDEVPRIVATE, &ifr);
  61 /*
  62         if ((ret = ioctl(s, SIOCDEVPRIVATE, &ifr)) < 0)
  63                 if (cmd != WLC_GET_MAGIC)
  64                         perror(ifr.ifr_name);
  65 */
  66         /* cleanup */
  67         close(s);
  68         return ret;
  69 }
  70
  71 // xref: wl.c:wl_probe()
  72 int wl_get_dev_type(char *name, void *buf, int len)
  73 {
  74         int s;
  75         int ret;
  76         struct ifreq ifr;
  77         struct ethtool_drvinfo info;
  78
  79         /* open socket to kernel */
  80         if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
  81                 perror("socket");
  82                 return -1;
  83         }
  84
  85         /* get device type */
  86         memset(&info, 0, sizeof(info));
  87         info.cmd = ETHTOOL_GDRVINFO;
  88         ifr.ifr_data = (caddr_t)&info;
  89         strlcpy(ifr.ifr_name, name, IFNAMSIZ);
  90         if ((ret = ioctl(s, SIOCETHTOOL, &ifr)) < 0) {
  91                 *(char *)buf = '\0';
  92         }
  93         else {
  94                 strlcpy(buf, info.driver, len);
  95         }
  96
  97         close(s);
  98         return ret;
  99 }
 100
 101 // xref: nas,wlconf,
 102 int wl_hwaddr(char *name, unsigned char *hwaddr)
 103 {
 104         struct ifreq ifr;
 105         int ret = 0;
 106         int s;
 107
 108         /* open socket to kernel */
 109         if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
 110                 perror("socket");
 111                 return errno;
 112         }
 113
 114         /* do it */
 115         strlcpy(ifr.ifr_name, name, IFNAMSIZ);
 116         if ((ret = ioctl(s, SIOCGIFHWADDR, &ifr)) == 0)
 117                 memcpy(hwaddr, ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
 118
 119         /* cleanup */
 120         close(s);
 121         return ret;
 122 }
 123