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#define LOG_TAG "zuk_readmac"
#define LOG_NDEBUG 0
#include <log/log.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include <time.h>
#define MAC_ADDR_SIZE 6
#define WLAN_MAC_BIN "/persist/wlan_mac.bin"
static int check_wlan_mac_bin_file()
{
char content[1024];
FILE *fp;
fp = fopen(WLAN_MAC_BIN, "r");
if (fp != NULL) {
memset(content, 0, sizeof(content));
fread(content, 1, sizeof(content)-1, fp);
fclose(fp);
if (strstr(content, "Intf0MacAddress") == NULL) {
ALOGV("%s is missing Intf0MacAddress entry value", WLAN_MAC_BIN);
return 1;
}
if (strstr(content, "Intf1MacAddress") == NULL) {
ALOGV("%s is missing Intf1MacAddress entry value", WLAN_MAC_BIN);
return 1;
}
return 0;
}
return 1;
}
int main()
{
int i, wlan_addr3, wlan_addr4, wlan_addr5;
// First 6 hex number are fix
unsigned char wlan_addr[] = { 0xd8, 0x9a, 0x34 };
// Last 6 hex number are random
srand(time(NULL) + getpid());
for (i = 0; i < 3; i++) {
wlan_addr3 = rand() % 256;
wlan_addr4 = rand() % 256;
wlan_addr5 = rand() % 256;
}
FILE *fp;
// Store WLAN MAC address in the persist file, if needed
if (check_wlan_mac_bin_file()) {
fp = fopen(WLAN_MAC_BIN, "w");
fprintf(fp, "Intf0MacAddress=%02X%02X%02X%02X%02X%02X\n",
wlan_addr[0], wlan_addr[1], wlan_addr[2], wlan_addr3, wlan_addr4, wlan_addr5);
fprintf(fp, "Intf1MacAddress=%02X%02X%02X%02X%02X%02X\n",
wlan_addr[0], wlan_addr[1], wlan_addr[2], wlan_addr3, wlan_addr4, (wlan_addr5+1));
fprintf(fp, "END\n");
fclose(fp);
ALOGV("%s was successfully generated", WLAN_MAC_BIN);
} else {
ALOGV("%s already exists and is valid", WLAN_MAC_BIN);
}
return 0;
}
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