add wifi ap
Change-Id: I476c5c36eef744a4d962758d14f4a9f2840ecebf
diff --git a/mbtk/libmbtk_lib/wifi/mbtk_wifi_ap.c b/mbtk/libmbtk_lib/wifi/mbtk_wifi_ap.c
new file mode 100644
index 0000000..6cd1463
--- /dev/null
+++ b/mbtk/libmbtk_lib/wifi/mbtk_wifi_ap.c
@@ -0,0 +1,255 @@
+#include "mbtk_log.h"
+#include "mbtk_wifi_ap.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+
+int mbtk_wifi_get_setting(const char *path, const char *key, char *value, int value_max_len)
+{
+ int ret = 0;
+ int cnt = 0;
+ int key_len;
+ int line_len;
+ int value_len;
+ FILE *fp;
+ char line_buf[SETTING_LINE_MAX_LEN] = {0};
+
+ if (NULL == path || NULL == key || NULL == value || 0 >= value_max_len) {
+ return -1;
+ }
+
+ key_len = strlen(key);
+ if (0 >= key_len || SETTING_KEY_MAX_LEN < key_len) {
+ return -2;
+ }
+
+ if (F_OK != access(path, F_OK)) {
+ return -3;
+ }
+
+ fp = fopen(path, "r");
+ if (NULL == fp) {
+ return -4;
+ }
+
+ while(NULL != fgets(line_buf, SETTING_LINE_MAX_LEN-1, fp)) {
+ line_len = strlen(line_buf);
+ if (line_len > key_len) {
+ if (0 == strncmp(line_buf, key, key_len) && SETTING_SPLIT_CHAR == line_buf[key_len]) {
+ ret = 1;
+ break;
+ }
+ }
+ memset(line_buf, 0, sizeof(line_buf));
+
+ cnt++;
+ if (SETTING_LINE_MAX < cnt) {
+ break;
+ }
+ }
+
+ fclose(fp);
+
+ if (1 == ret) {
+ value_len = line_len - key_len - 1;
+ if (0 < value_len) {
+ if (value_len > value_max_len) {
+ value_len = value_max_len;
+ }
+
+ strncpy(value, &line_buf[key_len + 1], value_len);
+ value[value_len] = '\0';
+
+
+ if ('\n' == value[value_len-1]) {
+ value[value_len-1] = '\0';
+ }
+ if (2 <= value_len && '\r' == value[value_len-2]) {
+ value[value_len-2] = '\0';
+ }
+
+ } else {
+ value[0] = '\0';
+ }
+ }
+
+ return ret;
+}
+
+
+int mbtk_wifi_set_setting(const char *path, const char *key, const char *value)
+{
+ int i, j;
+ int fd;
+ int tmp_data_cnt = 0;
+ int ret = 0;
+ int cnt = 0;
+ int key_len;
+ int line_len;
+ int value_len;
+ int len;
+ FILE *fp = NULL;
+ char tmp_key[SETTING_KEY_MAX_LEN+1] = {0};
+ char tmp_value[SETTING_VALUE_MAX_LEN+1] = {0};
+ char line_buf[SETTING_LINE_MAX_LEN] = {0};
+ char tmp_data_buf[SETTING_LINE_MAX][SETTING_LINE_MAX_LEN] = {0};
+
+
+ if (NULL == path || NULL == key || NULL == value) {
+ return -1;
+ }
+
+ key_len = strlen(key);
+ if (0 >= key_len || SETTING_KEY_MAX_LEN < key_len) {
+ return -2;
+ }
+
+ for (i = 0, j = 0; i < key_len; i++) {
+ if ('\r' == key[i] || '\n' == key[i]) {
+ break;
+ }
+ tmp_key[j++] = key[i];
+ }
+ key_len = j;
+
+ value_len = strlen(value);
+ if (SETTING_VALUE_MAX_LEN < value_len) {
+ value_len = SETTING_VALUE_MAX_LEN;
+ } else if (value_len <= 0) {
+ value_len = 0;
+ }
+
+ for (i = 0, j = 0; i < value_len; i++) {
+ if ('\r' == value[i] || '\n' == value[i]) {
+ break;
+ }
+ tmp_value[j++] = value[i];
+ }
+ value_len = j;
+
+
+ /*
+ if (F_OK != access(path, F_OK))
+ {
+ fp = fopen(path, "w+");
+ if (NULL == fp) {
+ return -3;
+ }
+
+
+ sprintf(line_buf, "%s%c%s\n", SETTING_VERSION_KEY, SETTING_SPLIT_CHAR, SETTING_VERSION_VALUE);
+ line_len = strlen(line_buf);
+ ret = fwrite(line_buf, 1, line_len, fp);
+
+
+ memset(line_buf, 0, sizeof(line_buf));
+ sprintf(line_buf, "%s%c%s\n", tmp_key, SETTING_SPLIT_CHAR, tmp_value);
+ line_len = strlen(line_buf);
+ if (line_len != fwrite(line_buf, 1, line_len, fp)) {
+ ret = -4;
+ } else {
+ ret = 2;
+ }
+
+ fclose(fp);
+ return ret;
+ }
+ */
+
+ if (NULL == fp) {
+ fp = fopen(path, "r+");
+ if (NULL == fp) {
+ return -5;
+ }
+ }
+
+ while(NULL != fgets(line_buf, SETTING_LINE_MAX_LEN-1, fp)) {
+ line_len = strlen(line_buf);
+ if (line_len > key_len) {
+ if (1 != ret && 0 == strncmp(line_buf, tmp_key, key_len) && SETTING_SPLIT_CHAR == line_buf[key_len]) {
+ ret = 1;
+ sprintf(line_buf, "%s%c%s\n", tmp_key, SETTING_SPLIT_CHAR, tmp_value);
+ }
+ }
+
+ strcpy(tmp_data_buf[tmp_data_cnt++], line_buf);
+
+ memset(line_buf, 0, sizeof(line_buf));
+
+ cnt++;
+ if (SETTING_LINE_MAX < cnt) {
+ break;
+ }
+ }
+
+
+ if (1 == ret) {
+ rewind(fp);
+ for (i = 0; i < tmp_data_cnt; i++) {
+ fputs(tmp_data_buf[i], fp);
+ }
+
+ len = ftell(fp);
+ fd = fileno(fp);
+ if(0 > ftruncate(fd, len))
+ {
+ return -1;
+ }
+
+ } else {
+ if (SETTING_LINE_MAX > cnt) {
+ sprintf(line_buf, "%s%c%s\n", tmp_key, SETTING_SPLIT_CHAR, tmp_value);
+ line_len = strlen(line_buf);
+ if (line_len != fwrite(line_buf, 1, line_len, fp)) {
+ ret = -6;
+ }
+ } else {
+ ret = -7;
+ }
+ }
+
+ fclose(fp);
+
+ return ret;
+}
+
+
+
+int mbtk_wifi_ap_start(void)
+{
+ if(0 > system("hostapd /etc/wifi/hostapd.conf -B"))
+ {
+ return -1;
+ }
+
+ if(0 > system("sleep 5s"))
+ {
+ return -1;
+ }
+
+ if(0 > system("brctl addif br-lan wlan0"))
+ {
+ return -1;
+ }
+
+ if(0 > system("iptables -t nat -A POSTROUTING -o ccinet0 -j MASQUERADE --random"))
+ {
+ return -1;
+ }
+
+ return 0;
+}
+
+int mbtk_wifi_ap_stop(void)
+{
+ if(0 > system("killall hostapd"))
+ {
+ return -1;
+ }
+
+ return 0;
+
+}
+
+