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wifi: support random mac address and save to file

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This commit is contained in:
hwg
2015-04-20 16:09:08 +08:00
parent 7509b38221
commit 030a0a5a30
1 changed files with 44 additions and 5 deletions
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49
net/rfkill/rfkill-wlan.c
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@@ -548,8 +548,46 @@ EXPORT_SYMBOL(rockchip_wifi_reset);
*
*************************************************************************/
#include <linux/etherdevice.h>
#include <linux/errno.h>
u8 wifi_custom_mac_addr[6] = {0,0,0,0,0,0};
extern char GetSNSectorInfo(char * pbuf);
//#define ENABLE_WIFI_RAND_MAC
#define WIFI_RAND_MAC_FILE "/data/misc/wifi_rand_mac"
static int rockchip_wifi_rand_mac_addr(unsigned char *buf)
{
struct file *fp;
loff_t pos;
mm_segment_t fs;
char mac_buf[20] = {0};
LOG("%s\n", __func__);
fp = filp_open(WIFI_RAND_MAC_FILE, O_RDONLY, 0);
if (fp == NULL || IS_ERR(fp)) {
fp = filp_open(WIFI_RAND_MAC_FILE, O_RDWR | O_CREAT, 0644);
if (fp == NULL || IS_ERR(fp)) {
LOG("%s: create %s failed.\n", __func__, WIFI_RAND_MAC_FILE);
return -1;
}
fs = get_fs();
set_fs(KERNEL_DS);
random_ether_addr(wifi_custom_mac_addr);
pos = 0;
vfs_write(fp, wifi_custom_mac_addr, 6, &pos);
filp_close(fp, NULL);
} else {
fs = get_fs();
set_fs(KERNEL_DS);
pos = 0;
vfs_read(fp, wifi_custom_mac_addr, 6, &pos);
filp_close(fp, NULL);
}
sprintf(mac_buf,"%02x:%02x:%02x:%02x:%02x:%02x",wifi_custom_mac_addr[0],wifi_custom_mac_addr[1],
wifi_custom_mac_addr[2],wifi_custom_mac_addr[3],wifi_custom_mac_addr[4],wifi_custom_mac_addr[5]);
LOG("random wifi_custom_mac_addr=[%s]\n", mac_buf);
return 0;
}
int rockchip_wifi_mac_addr(unsigned char *buf)
{
char mac_buf[20] = {0};
@@ -573,11 +611,12 @@ int rockchip_wifi_mac_addr(unsigned char *buf)
wifi_custom_mac_addr[2],wifi_custom_mac_addr[3],wifi_custom_mac_addr[4],wifi_custom_mac_addr[5]);
LOG("falsh wifi_custom_mac_addr=[%s]\n", mac_buf);
if (is_valid_ether_addr(wifi_custom_mac_addr)) {
if (2 == (wifi_custom_mac_addr[0] & 0x0F)) {
LOG("This mac address come into conflict with the address of direct, ignored...\n");
return -1;
}
#ifdef ENABLE_WIFI_RAND_MAC
rockchip_wifi_rand_mac_addr(buf);
#endif
if (is_valid_ether_addr(wifi_custom_mac_addr) && !strncmp(wifi_chip_type_string, "rtl", 3)) {
wifi_custom_mac_addr[0] &= ~0x2; // for p2p
} else {
LOG("This mac address is not valid, ignored...\n");
return -1;